Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /*****************************************************************************/ |
| 2 | |
| 3 | /* |
| 4 | * istallion.c -- stallion intelligent multiport serial driver. |
| 5 | * |
| 6 | * Copyright (C) 1996-1999 Stallion Technologies |
| 7 | * Copyright (C) 1994-1996 Greg Ungerer. |
| 8 | * |
| 9 | * This code is loosely based on the Linux serial driver, written by |
| 10 | * Linus Torvalds, Theodore T'so and others. |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation; either version 2 of the License, or |
| 15 | * (at your option) any later version. |
| 16 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
| 18 | |
| 19 | /*****************************************************************************/ |
| 20 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include <linux/module.h> |
| 22 | #include <linux/slab.h> |
| 23 | #include <linux/interrupt.h> |
| 24 | #include <linux/tty.h> |
| 25 | #include <linux/tty_flip.h> |
| 26 | #include <linux/serial.h> |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 27 | #include <linux/seq_file.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include <linux/cdk.h> |
| 29 | #include <linux/comstats.h> |
| 30 | #include <linux/istallion.h> |
| 31 | #include <linux/ioport.h> |
| 32 | #include <linux/delay.h> |
| 33 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <linux/device.h> |
| 35 | #include <linux/wait.h> |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 36 | #include <linux/eisa.h> |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 37 | #include <linux/ctype.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
| 39 | #include <asm/io.h> |
| 40 | #include <asm/uaccess.h> |
| 41 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <linux/pci.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
| 44 | /*****************************************************************************/ |
| 45 | |
| 46 | /* |
| 47 | * Define different board types. Not all of the following board types |
| 48 | * are supported by this driver. But I will use the standard "assigned" |
| 49 | * board numbers. Currently supported boards are abbreviated as: |
| 50 | * ECP = EasyConnection 8/64, ONB = ONboard, BBY = Brumby and |
| 51 | * STAL = Stallion. |
| 52 | */ |
| 53 | #define BRD_UNKNOWN 0 |
| 54 | #define BRD_STALLION 1 |
| 55 | #define BRD_BRUMBY4 2 |
| 56 | #define BRD_ONBOARD2 3 |
| 57 | #define BRD_ONBOARD 4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | #define BRD_ONBOARDE 7 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | #define BRD_ECP 23 |
| 60 | #define BRD_ECPE 24 |
| 61 | #define BRD_ECPMC 25 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | #define BRD_ECPPCI 29 |
| 63 | |
| 64 | #define BRD_BRUMBY BRD_BRUMBY4 |
| 65 | |
| 66 | /* |
| 67 | * Define a configuration structure to hold the board configuration. |
| 68 | * Need to set this up in the code (for now) with the boards that are |
| 69 | * to be configured into the system. This is what needs to be modified |
| 70 | * when adding/removing/modifying boards. Each line entry in the |
| 71 | * stli_brdconf[] array is a board. Each line contains io/irq/memory |
| 72 | * ranges for that board (as well as what type of board it is). |
| 73 | * Some examples: |
| 74 | * { BRD_ECP, 0x2a0, 0, 0xcc000, 0, 0 }, |
| 75 | * This line will configure an EasyConnection 8/64 at io address 2a0, |
| 76 | * and shared memory address of cc000. Multiple EasyConnection 8/64 |
| 77 | * boards can share the same shared memory address space. No interrupt |
| 78 | * is required for this board type. |
| 79 | * Another example: |
| 80 | * { BRD_ECPE, 0x5000, 0, 0x80000000, 0, 0 }, |
| 81 | * This line will configure an EasyConnection 8/64 EISA in slot 5 and |
| 82 | * shared memory address of 0x80000000 (2 GByte). Multiple |
| 83 | * EasyConnection 8/64 EISA boards can share the same shared memory |
| 84 | * address space. No interrupt is required for this board type. |
| 85 | * Another example: |
| 86 | * { BRD_ONBOARD, 0x240, 0, 0xd0000, 0, 0 }, |
| 87 | * This line will configure an ONboard (ISA type) at io address 240, |
| 88 | * and shared memory address of d0000. Multiple ONboards can share |
| 89 | * the same shared memory address space. No interrupt required. |
| 90 | * Another example: |
| 91 | * { BRD_BRUMBY4, 0x360, 0, 0xc8000, 0, 0 }, |
| 92 | * This line will configure a Brumby board (any number of ports!) at |
| 93 | * io address 360 and shared memory address of c8000. All Brumby boards |
| 94 | * configured into a system must have their own separate io and memory |
| 95 | * addresses. No interrupt is required. |
| 96 | * Another example: |
| 97 | * { BRD_STALLION, 0x330, 0, 0xd0000, 0, 0 }, |
| 98 | * This line will configure an original Stallion board at io address 330 |
| 99 | * and shared memory address d0000 (this would only be valid for a "V4.0" |
| 100 | * or Rev.O Stallion board). All Stallion boards configured into the |
| 101 | * system must have their own separate io and memory addresses. No |
| 102 | * interrupt is required. |
| 103 | */ |
| 104 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 105 | struct stlconf { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | int brdtype; |
| 107 | int ioaddr1; |
| 108 | int ioaddr2; |
| 109 | unsigned long memaddr; |
| 110 | int irq; |
| 111 | int irqtype; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 112 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 114 | static unsigned int stli_nrbrds; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 116 | /* stli_lock must NOT be taken holding brd_lock */ |
| 117 | static spinlock_t stli_lock; /* TTY logic lock */ |
| 118 | static spinlock_t brd_lock; /* Board logic lock */ |
| 119 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | /* |
| 121 | * There is some experimental EISA board detection code in this driver. |
| 122 | * By default it is disabled, but for those that want to try it out, |
| 123 | * then set the define below to be 1. |
| 124 | */ |
| 125 | #define STLI_EISAPROBE 0 |
| 126 | |
| 127 | /*****************************************************************************/ |
| 128 | |
| 129 | /* |
| 130 | * Define some important driver characteristics. Device major numbers |
| 131 | * allocated as per Linux Device Registry. |
| 132 | */ |
| 133 | #ifndef STL_SIOMEMMAJOR |
| 134 | #define STL_SIOMEMMAJOR 28 |
| 135 | #endif |
| 136 | #ifndef STL_SERIALMAJOR |
| 137 | #define STL_SERIALMAJOR 24 |
| 138 | #endif |
| 139 | #ifndef STL_CALLOUTMAJOR |
| 140 | #define STL_CALLOUTMAJOR 25 |
| 141 | #endif |
| 142 | |
| 143 | /*****************************************************************************/ |
| 144 | |
| 145 | /* |
| 146 | * Define our local driver identity first. Set up stuff to deal with |
| 147 | * all the local structures required by a serial tty driver. |
| 148 | */ |
| 149 | static char *stli_drvtitle = "Stallion Intelligent Multiport Serial Driver"; |
| 150 | static char *stli_drvname = "istallion"; |
| 151 | static char *stli_drvversion = "5.6.0"; |
| 152 | static char *stli_serialname = "ttyE"; |
| 153 | |
| 154 | static struct tty_driver *stli_serial; |
Alan Cox | 31f3593 | 2009-01-02 13:45:05 +0000 | [diff] [blame] | 155 | static const struct tty_port_operations stli_port_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | |
| 157 | #define STLI_TXBUFSIZE 4096 |
| 158 | |
| 159 | /* |
| 160 | * Use a fast local buffer for cooked characters. Typically a whole |
| 161 | * bunch of cooked characters come in for a port, 1 at a time. So we |
| 162 | * save those up into a local buffer, then write out the whole lot |
| 163 | * with a large memcpy. Just use 1 buffer for all ports, since its |
| 164 | * use it is only need for short periods of time by each port. |
| 165 | */ |
| 166 | static char *stli_txcookbuf; |
| 167 | static int stli_txcooksize; |
| 168 | static int stli_txcookrealsize; |
| 169 | static struct tty_struct *stli_txcooktty; |
| 170 | |
| 171 | /* |
| 172 | * Define a local default termios struct. All ports will be created |
| 173 | * with this termios initially. Basically all it defines is a raw port |
| 174 | * at 9600 baud, 8 data bits, no parity, 1 stop bit. |
| 175 | */ |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 176 | static struct ktermios stli_deftermios = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | .c_cflag = (B9600 | CS8 | CREAD | HUPCL | CLOCAL), |
| 178 | .c_cc = INIT_C_CC, |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 179 | .c_ispeed = 9600, |
| 180 | .c_ospeed = 9600, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | }; |
| 182 | |
| 183 | /* |
| 184 | * Define global stats structures. Not used often, and can be |
| 185 | * re-used for each stats call. |
| 186 | */ |
| 187 | static comstats_t stli_comstats; |
| 188 | static combrd_t stli_brdstats; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 189 | static struct asystats stli_cdkstats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | |
| 191 | /*****************************************************************************/ |
| 192 | |
Jiri Slaby | b103b5c | 2006-12-08 02:39:21 -0800 | [diff] [blame] | 193 | static DEFINE_MUTEX(stli_brdslock); |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 194 | static struct stlibrd *stli_brds[STL_MAXBRDS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
| 196 | static int stli_shared; |
| 197 | |
| 198 | /* |
| 199 | * Per board state flags. Used with the state field of the board struct. |
| 200 | * Not really much here... All we need to do is keep track of whether |
| 201 | * the board has been detected, and whether it is actually running a slave |
| 202 | * or not. |
| 203 | */ |
| 204 | #define BST_FOUND 0x1 |
| 205 | #define BST_STARTED 0x2 |
Jiri Slaby | 3901417 | 2006-12-08 02:39:22 -0800 | [diff] [blame] | 206 | #define BST_PROBED 0x4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | |
| 208 | /* |
| 209 | * Define the set of port state flags. These are marked for internal |
| 210 | * state purposes only, usually to do with the state of communications |
| 211 | * with the slave. Most of them need to be updated atomically, so always |
| 212 | * use the bit setting operations (unless protected by cli/sti). |
| 213 | */ |
| 214 | #define ST_INITIALIZING 1 |
| 215 | #define ST_OPENING 2 |
| 216 | #define ST_CLOSING 3 |
| 217 | #define ST_CMDING 4 |
| 218 | #define ST_TXBUSY 5 |
| 219 | #define ST_RXING 6 |
| 220 | #define ST_DOFLUSHRX 7 |
| 221 | #define ST_DOFLUSHTX 8 |
| 222 | #define ST_DOSIGS 9 |
| 223 | #define ST_RXSTOP 10 |
| 224 | #define ST_GETSIGS 11 |
| 225 | |
| 226 | /* |
| 227 | * Define an array of board names as printable strings. Handy for |
| 228 | * referencing boards when printing trace and stuff. |
| 229 | */ |
| 230 | static char *stli_brdnames[] = { |
| 231 | "Unknown", |
| 232 | "Stallion", |
| 233 | "Brumby", |
| 234 | "ONboard-MC", |
| 235 | "ONboard", |
| 236 | "Brumby", |
| 237 | "Brumby", |
| 238 | "ONboard-EI", |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 239 | NULL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | "ONboard", |
| 241 | "ONboard-MC", |
| 242 | "ONboard-MC", |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 243 | NULL, |
| 244 | NULL, |
| 245 | NULL, |
| 246 | NULL, |
| 247 | NULL, |
| 248 | NULL, |
| 249 | NULL, |
| 250 | NULL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | "EasyIO", |
| 252 | "EC8/32-AT", |
| 253 | "EC8/32-MC", |
| 254 | "EC8/64-AT", |
| 255 | "EC8/64-EI", |
| 256 | "EC8/64-MC", |
| 257 | "EC8/32-PCI", |
| 258 | "EC8/64-PCI", |
| 259 | "EasyIO-PCI", |
| 260 | "EC/RA-PCI", |
| 261 | }; |
| 262 | |
| 263 | /*****************************************************************************/ |
| 264 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | /* |
| 266 | * Define some string labels for arguments passed from the module |
| 267 | * load line. These allow for easy board definitions, and easy |
| 268 | * modification of the io, memory and irq resoucres. |
| 269 | */ |
| 270 | |
| 271 | static char *board0[8]; |
| 272 | static char *board1[8]; |
| 273 | static char *board2[8]; |
| 274 | static char *board3[8]; |
| 275 | |
| 276 | static char **stli_brdsp[] = { |
| 277 | (char **) &board0, |
| 278 | (char **) &board1, |
| 279 | (char **) &board2, |
| 280 | (char **) &board3 |
| 281 | }; |
| 282 | |
| 283 | /* |
| 284 | * Define a set of common board names, and types. This is used to |
| 285 | * parse any module arguments. |
| 286 | */ |
| 287 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 288 | static struct stlibrdtype { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | char *name; |
| 290 | int type; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 291 | } stli_brdstr[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | { "stallion", BRD_STALLION }, |
| 293 | { "1", BRD_STALLION }, |
| 294 | { "brumby", BRD_BRUMBY }, |
| 295 | { "brumby4", BRD_BRUMBY }, |
| 296 | { "brumby/4", BRD_BRUMBY }, |
| 297 | { "brumby-4", BRD_BRUMBY }, |
| 298 | { "brumby8", BRD_BRUMBY }, |
| 299 | { "brumby/8", BRD_BRUMBY }, |
| 300 | { "brumby-8", BRD_BRUMBY }, |
| 301 | { "brumby16", BRD_BRUMBY }, |
| 302 | { "brumby/16", BRD_BRUMBY }, |
| 303 | { "brumby-16", BRD_BRUMBY }, |
| 304 | { "2", BRD_BRUMBY }, |
| 305 | { "onboard2", BRD_ONBOARD2 }, |
| 306 | { "onboard-2", BRD_ONBOARD2 }, |
| 307 | { "onboard/2", BRD_ONBOARD2 }, |
| 308 | { "onboard-mc", BRD_ONBOARD2 }, |
| 309 | { "onboard/mc", BRD_ONBOARD2 }, |
| 310 | { "onboard-mca", BRD_ONBOARD2 }, |
| 311 | { "onboard/mca", BRD_ONBOARD2 }, |
| 312 | { "3", BRD_ONBOARD2 }, |
| 313 | { "onboard", BRD_ONBOARD }, |
| 314 | { "onboardat", BRD_ONBOARD }, |
| 315 | { "4", BRD_ONBOARD }, |
| 316 | { "onboarde", BRD_ONBOARDE }, |
| 317 | { "onboard-e", BRD_ONBOARDE }, |
| 318 | { "onboard/e", BRD_ONBOARDE }, |
| 319 | { "onboard-ei", BRD_ONBOARDE }, |
| 320 | { "onboard/ei", BRD_ONBOARDE }, |
| 321 | { "7", BRD_ONBOARDE }, |
| 322 | { "ecp", BRD_ECP }, |
| 323 | { "ecpat", BRD_ECP }, |
| 324 | { "ec8/64", BRD_ECP }, |
| 325 | { "ec8/64-at", BRD_ECP }, |
| 326 | { "ec8/64-isa", BRD_ECP }, |
| 327 | { "23", BRD_ECP }, |
| 328 | { "ecpe", BRD_ECPE }, |
| 329 | { "ecpei", BRD_ECPE }, |
| 330 | { "ec8/64-e", BRD_ECPE }, |
| 331 | { "ec8/64-ei", BRD_ECPE }, |
| 332 | { "24", BRD_ECPE }, |
| 333 | { "ecpmc", BRD_ECPMC }, |
| 334 | { "ec8/64-mc", BRD_ECPMC }, |
| 335 | { "ec8/64-mca", BRD_ECPMC }, |
| 336 | { "25", BRD_ECPMC }, |
| 337 | { "ecppci", BRD_ECPPCI }, |
| 338 | { "ec/ra", BRD_ECPPCI }, |
| 339 | { "ec/ra-pc", BRD_ECPPCI }, |
| 340 | { "ec/ra-pci", BRD_ECPPCI }, |
| 341 | { "29", BRD_ECPPCI }, |
| 342 | }; |
| 343 | |
| 344 | /* |
| 345 | * Define the module agruments. |
| 346 | */ |
| 347 | MODULE_AUTHOR("Greg Ungerer"); |
| 348 | MODULE_DESCRIPTION("Stallion Intelligent Multiport Serial Driver"); |
| 349 | MODULE_LICENSE("GPL"); |
| 350 | |
| 351 | |
Rusty Russell | 8d3b33f | 2006-03-25 03:07:05 -0800 | [diff] [blame] | 352 | module_param_array(board0, charp, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | MODULE_PARM_DESC(board0, "Board 0 config -> name[,ioaddr[,memaddr]"); |
Rusty Russell | 8d3b33f | 2006-03-25 03:07:05 -0800 | [diff] [blame] | 354 | module_param_array(board1, charp, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | MODULE_PARM_DESC(board1, "Board 1 config -> name[,ioaddr[,memaddr]"); |
Rusty Russell | 8d3b33f | 2006-03-25 03:07:05 -0800 | [diff] [blame] | 356 | module_param_array(board2, charp, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | MODULE_PARM_DESC(board2, "Board 2 config -> name[,ioaddr[,memaddr]"); |
Rusty Russell | 8d3b33f | 2006-03-25 03:07:05 -0800 | [diff] [blame] | 358 | module_param_array(board3, charp, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | MODULE_PARM_DESC(board3, "Board 3 config -> name[,ioaddr[,memaddr]"); |
| 360 | |
Jiri Slaby | a00f33f | 2006-12-08 02:39:20 -0800 | [diff] [blame] | 361 | #if STLI_EISAPROBE != 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | /* |
| 363 | * Set up a default memory address table for EISA board probing. |
| 364 | * The default addresses are all bellow 1Mbyte, which has to be the |
| 365 | * case anyway. They should be safe, since we only read values from |
| 366 | * them, and interrupts are disabled while we do it. If the higher |
| 367 | * memory support is compiled in then we also try probing around |
| 368 | * the 1Gb, 2Gb and 3Gb areas as well... |
| 369 | */ |
| 370 | static unsigned long stli_eisamemprobeaddrs[] = { |
| 371 | 0xc0000, 0xd0000, 0xe0000, 0xf0000, |
| 372 | 0x80000000, 0x80010000, 0x80020000, 0x80030000, |
| 373 | 0x40000000, 0x40010000, 0x40020000, 0x40030000, |
| 374 | 0xc0000000, 0xc0010000, 0xc0020000, 0xc0030000, |
| 375 | 0xff000000, 0xff010000, 0xff020000, 0xff030000, |
| 376 | }; |
| 377 | |
Tobias Klauser | fe97107 | 2006-01-09 20:54:02 -0800 | [diff] [blame] | 378 | static int stli_eisamempsize = ARRAY_SIZE(stli_eisamemprobeaddrs); |
Jiri Slaby | a00f33f | 2006-12-08 02:39:20 -0800 | [diff] [blame] | 379 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | |
| 381 | /* |
| 382 | * Define the Stallion PCI vendor and device IDs. |
| 383 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | #ifndef PCI_DEVICE_ID_ECRA |
| 385 | #define PCI_DEVICE_ID_ECRA 0x0004 |
| 386 | #endif |
| 387 | |
| 388 | static struct pci_device_id istallion_pci_tbl[] = { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 389 | { PCI_DEVICE(PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECRA), }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | { 0 } |
| 391 | }; |
| 392 | MODULE_DEVICE_TABLE(pci, istallion_pci_tbl); |
| 393 | |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 394 | static struct pci_driver stli_pcidriver; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
| 396 | /*****************************************************************************/ |
| 397 | |
| 398 | /* |
| 399 | * Hardware configuration info for ECP boards. These defines apply |
| 400 | * to the directly accessible io ports of the ECP. There is a set of |
| 401 | * defines for each ECP board type, ISA, EISA, MCA and PCI. |
| 402 | */ |
| 403 | #define ECP_IOSIZE 4 |
| 404 | |
| 405 | #define ECP_MEMSIZE (128 * 1024) |
| 406 | #define ECP_PCIMEMSIZE (256 * 1024) |
| 407 | |
| 408 | #define ECP_ATPAGESIZE (4 * 1024) |
| 409 | #define ECP_MCPAGESIZE (4 * 1024) |
| 410 | #define ECP_EIPAGESIZE (64 * 1024) |
| 411 | #define ECP_PCIPAGESIZE (64 * 1024) |
| 412 | |
| 413 | #define STL_EISAID 0x8c4e |
| 414 | |
| 415 | /* |
| 416 | * Important defines for the ISA class of ECP board. |
| 417 | */ |
| 418 | #define ECP_ATIREG 0 |
| 419 | #define ECP_ATCONFR 1 |
| 420 | #define ECP_ATMEMAR 2 |
| 421 | #define ECP_ATMEMPR 3 |
| 422 | #define ECP_ATSTOP 0x1 |
| 423 | #define ECP_ATINTENAB 0x10 |
| 424 | #define ECP_ATENABLE 0x20 |
| 425 | #define ECP_ATDISABLE 0x00 |
| 426 | #define ECP_ATADDRMASK 0x3f000 |
| 427 | #define ECP_ATADDRSHFT 12 |
| 428 | |
| 429 | /* |
| 430 | * Important defines for the EISA class of ECP board. |
| 431 | */ |
| 432 | #define ECP_EIIREG 0 |
| 433 | #define ECP_EIMEMARL 1 |
| 434 | #define ECP_EICONFR 2 |
| 435 | #define ECP_EIMEMARH 3 |
| 436 | #define ECP_EIENABLE 0x1 |
| 437 | #define ECP_EIDISABLE 0x0 |
| 438 | #define ECP_EISTOP 0x4 |
| 439 | #define ECP_EIEDGE 0x00 |
| 440 | #define ECP_EILEVEL 0x80 |
| 441 | #define ECP_EIADDRMASKL 0x00ff0000 |
| 442 | #define ECP_EIADDRSHFTL 16 |
| 443 | #define ECP_EIADDRMASKH 0xff000000 |
| 444 | #define ECP_EIADDRSHFTH 24 |
| 445 | #define ECP_EIBRDENAB 0xc84 |
| 446 | |
| 447 | #define ECP_EISAID 0x4 |
| 448 | |
| 449 | /* |
| 450 | * Important defines for the Micro-channel class of ECP board. |
| 451 | * (It has a lot in common with the ISA boards.) |
| 452 | */ |
| 453 | #define ECP_MCIREG 0 |
| 454 | #define ECP_MCCONFR 1 |
| 455 | #define ECP_MCSTOP 0x20 |
| 456 | #define ECP_MCENABLE 0x80 |
| 457 | #define ECP_MCDISABLE 0x00 |
| 458 | |
| 459 | /* |
| 460 | * Important defines for the PCI class of ECP board. |
| 461 | * (It has a lot in common with the other ECP boards.) |
| 462 | */ |
| 463 | #define ECP_PCIIREG 0 |
| 464 | #define ECP_PCICONFR 1 |
| 465 | #define ECP_PCISTOP 0x01 |
| 466 | |
| 467 | /* |
| 468 | * Hardware configuration info for ONboard and Brumby boards. These |
| 469 | * defines apply to the directly accessible io ports of these boards. |
| 470 | */ |
| 471 | #define ONB_IOSIZE 16 |
| 472 | #define ONB_MEMSIZE (64 * 1024) |
| 473 | #define ONB_ATPAGESIZE (64 * 1024) |
| 474 | #define ONB_MCPAGESIZE (64 * 1024) |
| 475 | #define ONB_EIMEMSIZE (128 * 1024) |
| 476 | #define ONB_EIPAGESIZE (64 * 1024) |
| 477 | |
| 478 | /* |
| 479 | * Important defines for the ISA class of ONboard board. |
| 480 | */ |
| 481 | #define ONB_ATIREG 0 |
| 482 | #define ONB_ATMEMAR 1 |
| 483 | #define ONB_ATCONFR 2 |
| 484 | #define ONB_ATSTOP 0x4 |
| 485 | #define ONB_ATENABLE 0x01 |
| 486 | #define ONB_ATDISABLE 0x00 |
| 487 | #define ONB_ATADDRMASK 0xff0000 |
| 488 | #define ONB_ATADDRSHFT 16 |
| 489 | |
| 490 | #define ONB_MEMENABLO 0 |
| 491 | #define ONB_MEMENABHI 0x02 |
| 492 | |
| 493 | /* |
| 494 | * Important defines for the EISA class of ONboard board. |
| 495 | */ |
| 496 | #define ONB_EIIREG 0 |
| 497 | #define ONB_EIMEMARL 1 |
| 498 | #define ONB_EICONFR 2 |
| 499 | #define ONB_EIMEMARH 3 |
| 500 | #define ONB_EIENABLE 0x1 |
| 501 | #define ONB_EIDISABLE 0x0 |
| 502 | #define ONB_EISTOP 0x4 |
| 503 | #define ONB_EIEDGE 0x00 |
| 504 | #define ONB_EILEVEL 0x80 |
| 505 | #define ONB_EIADDRMASKL 0x00ff0000 |
| 506 | #define ONB_EIADDRSHFTL 16 |
| 507 | #define ONB_EIADDRMASKH 0xff000000 |
| 508 | #define ONB_EIADDRSHFTH 24 |
| 509 | #define ONB_EIBRDENAB 0xc84 |
| 510 | |
| 511 | #define ONB_EISAID 0x1 |
| 512 | |
| 513 | /* |
| 514 | * Important defines for the Brumby boards. They are pretty simple, |
| 515 | * there is not much that is programmably configurable. |
| 516 | */ |
| 517 | #define BBY_IOSIZE 16 |
| 518 | #define BBY_MEMSIZE (64 * 1024) |
| 519 | #define BBY_PAGESIZE (16 * 1024) |
| 520 | |
| 521 | #define BBY_ATIREG 0 |
| 522 | #define BBY_ATCONFR 1 |
| 523 | #define BBY_ATSTOP 0x4 |
| 524 | |
| 525 | /* |
| 526 | * Important defines for the Stallion boards. They are pretty simple, |
| 527 | * there is not much that is programmably configurable. |
| 528 | */ |
| 529 | #define STAL_IOSIZE 16 |
| 530 | #define STAL_MEMSIZE (64 * 1024) |
| 531 | #define STAL_PAGESIZE (64 * 1024) |
| 532 | |
| 533 | /* |
| 534 | * Define the set of status register values for EasyConnection panels. |
| 535 | * The signature will return with the status value for each panel. From |
| 536 | * this we can determine what is attached to the board - before we have |
| 537 | * actually down loaded any code to it. |
| 538 | */ |
| 539 | #define ECH_PNLSTATUS 2 |
| 540 | #define ECH_PNL16PORT 0x20 |
| 541 | #define ECH_PNLIDMASK 0x07 |
| 542 | #define ECH_PNLXPID 0x40 |
| 543 | #define ECH_PNLINTRPEND 0x80 |
| 544 | |
| 545 | /* |
| 546 | * Define some macros to do things to the board. Even those these boards |
| 547 | * are somewhat related there is often significantly different ways of |
| 548 | * doing some operation on it (like enable, paging, reset, etc). So each |
| 549 | * board class has a set of functions which do the commonly required |
| 550 | * operations. The macros below basically just call these functions, |
| 551 | * generally checking for a NULL function - which means that the board |
| 552 | * needs nothing done to it to achieve this operation! |
| 553 | */ |
| 554 | #define EBRDINIT(brdp) \ |
| 555 | if (brdp->init != NULL) \ |
| 556 | (* brdp->init)(brdp) |
| 557 | |
| 558 | #define EBRDENABLE(brdp) \ |
| 559 | if (brdp->enable != NULL) \ |
| 560 | (* brdp->enable)(brdp); |
| 561 | |
| 562 | #define EBRDDISABLE(brdp) \ |
| 563 | if (brdp->disable != NULL) \ |
| 564 | (* brdp->disable)(brdp); |
| 565 | |
| 566 | #define EBRDINTR(brdp) \ |
| 567 | if (brdp->intr != NULL) \ |
| 568 | (* brdp->intr)(brdp); |
| 569 | |
| 570 | #define EBRDRESET(brdp) \ |
| 571 | if (brdp->reset != NULL) \ |
| 572 | (* brdp->reset)(brdp); |
| 573 | |
| 574 | #define EBRDGETMEMPTR(brdp,offset) \ |
| 575 | (* brdp->getmemptr)(brdp, offset, __LINE__) |
| 576 | |
| 577 | /* |
| 578 | * Define the maximal baud rate, and the default baud base for ports. |
| 579 | */ |
| 580 | #define STL_MAXBAUD 460800 |
| 581 | #define STL_BAUDBASE 115200 |
| 582 | #define STL_CLOSEDELAY (5 * HZ / 10) |
| 583 | |
| 584 | /*****************************************************************************/ |
| 585 | |
| 586 | /* |
| 587 | * Define macros to extract a brd or port number from a minor number. |
| 588 | */ |
| 589 | #define MINOR2BRD(min) (((min) & 0xc0) >> 6) |
| 590 | #define MINOR2PORT(min) ((min) & 0x3f) |
| 591 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | /*****************************************************************************/ |
| 593 | |
| 594 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | * Prototype all functions in this driver! |
| 596 | */ |
| 597 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 598 | static int stli_parsebrd(struct stlconf *confp, char **argp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | static int stli_open(struct tty_struct *tty, struct file *filp); |
| 600 | static void stli_close(struct tty_struct *tty, struct file *filp); |
| 601 | static int stli_write(struct tty_struct *tty, const unsigned char *buf, int count); |
Wang Chen | 42a77a1 | 2008-07-21 17:48:59 +0800 | [diff] [blame] | 602 | static int stli_putchar(struct tty_struct *tty, unsigned char ch); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | static void stli_flushchars(struct tty_struct *tty); |
| 604 | static int stli_writeroom(struct tty_struct *tty); |
| 605 | static int stli_charsinbuffer(struct tty_struct *tty); |
| 606 | static int stli_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 607 | static void stli_settermios(struct tty_struct *tty, struct ktermios *old); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | static void stli_throttle(struct tty_struct *tty); |
| 609 | static void stli_unthrottle(struct tty_struct *tty); |
| 610 | static void stli_stop(struct tty_struct *tty); |
| 611 | static void stli_start(struct tty_struct *tty); |
| 612 | static void stli_flushbuffer(struct tty_struct *tty); |
Alan Cox | 9e98966 | 2008-07-22 11:18:03 +0100 | [diff] [blame] | 613 | static int stli_breakctl(struct tty_struct *tty, int state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | static void stli_waituntilsent(struct tty_struct *tty, int timeout); |
| 615 | static void stli_sendxchar(struct tty_struct *tty, char ch); |
| 616 | static void stli_hangup(struct tty_struct *tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 618 | static int stli_brdinit(struct stlibrd *brdp); |
| 619 | static int stli_startbrd(struct stlibrd *brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, loff_t *offp); |
| 621 | static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t count, loff_t *offp); |
| 622 | static int stli_memioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg); |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 623 | static void stli_brdpoll(struct stlibrd *brdp, cdkhdr_t __iomem *hdrp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | static void stli_poll(unsigned long arg); |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 625 | static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp); |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 626 | static int stli_initopen(struct tty_struct *tty, struct stlibrd *brdp, struct stliport *portp); |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 627 | static int stli_rawopen(struct stlibrd *brdp, struct stliport *portp, unsigned long arg, int wait); |
| 628 | static int stli_rawclose(struct stlibrd *brdp, struct stliport *portp, unsigned long arg, int wait); |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 629 | static int stli_setport(struct tty_struct *tty); |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 630 | static int stli_cmdwait(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback); |
| 631 | static void stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback); |
| 632 | static void __stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback); |
| 633 | static void stli_dodelaycmd(struct stliport *portp, cdkctrl_t __iomem *cp); |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 634 | static void stli_mkasyport(struct tty_struct *tty, struct stliport *portp, asyport_t *pp, struct ktermios *tiosp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts); |
| 636 | static long stli_mktiocm(unsigned long sigvalue); |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 637 | static void stli_read(struct stlibrd *brdp, struct stliport *portp); |
| 638 | static int stli_getserial(struct stliport *portp, struct serial_struct __user *sp); |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 639 | static int stli_setserial(struct tty_struct *tty, struct serial_struct __user *sp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | static int stli_getbrdstats(combrd_t __user *bp); |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 641 | static int stli_getportstats(struct tty_struct *tty, struct stliport *portp, comstats_t __user *cp); |
| 642 | static int stli_portcmdstats(struct tty_struct *tty, struct stliport *portp); |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 643 | static int stli_clrportstats(struct stliport *portp, comstats_t __user *cp); |
| 644 | static int stli_getportstruct(struct stliport __user *arg); |
| 645 | static int stli_getbrdstruct(struct stlibrd __user *arg); |
| 646 | static struct stlibrd *stli_allocbrd(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 648 | static void stli_ecpinit(struct stlibrd *brdp); |
| 649 | static void stli_ecpenable(struct stlibrd *brdp); |
| 650 | static void stli_ecpdisable(struct stlibrd *brdp); |
| 651 | static void __iomem *stli_ecpgetmemptr(struct stlibrd *brdp, unsigned long offset, int line); |
| 652 | static void stli_ecpreset(struct stlibrd *brdp); |
| 653 | static void stli_ecpintr(struct stlibrd *brdp); |
| 654 | static void stli_ecpeiinit(struct stlibrd *brdp); |
| 655 | static void stli_ecpeienable(struct stlibrd *brdp); |
| 656 | static void stli_ecpeidisable(struct stlibrd *brdp); |
| 657 | static void __iomem *stli_ecpeigetmemptr(struct stlibrd *brdp, unsigned long offset, int line); |
| 658 | static void stli_ecpeireset(struct stlibrd *brdp); |
| 659 | static void stli_ecpmcenable(struct stlibrd *brdp); |
| 660 | static void stli_ecpmcdisable(struct stlibrd *brdp); |
| 661 | static void __iomem *stli_ecpmcgetmemptr(struct stlibrd *brdp, unsigned long offset, int line); |
| 662 | static void stli_ecpmcreset(struct stlibrd *brdp); |
| 663 | static void stli_ecppciinit(struct stlibrd *brdp); |
| 664 | static void __iomem *stli_ecppcigetmemptr(struct stlibrd *brdp, unsigned long offset, int line); |
| 665 | static void stli_ecppcireset(struct stlibrd *brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 667 | static void stli_onbinit(struct stlibrd *brdp); |
| 668 | static void stli_onbenable(struct stlibrd *brdp); |
| 669 | static void stli_onbdisable(struct stlibrd *brdp); |
| 670 | static void __iomem *stli_onbgetmemptr(struct stlibrd *brdp, unsigned long offset, int line); |
| 671 | static void stli_onbreset(struct stlibrd *brdp); |
| 672 | static void stli_onbeinit(struct stlibrd *brdp); |
| 673 | static void stli_onbeenable(struct stlibrd *brdp); |
| 674 | static void stli_onbedisable(struct stlibrd *brdp); |
| 675 | static void __iomem *stli_onbegetmemptr(struct stlibrd *brdp, unsigned long offset, int line); |
| 676 | static void stli_onbereset(struct stlibrd *brdp); |
| 677 | static void stli_bbyinit(struct stlibrd *brdp); |
| 678 | static void __iomem *stli_bbygetmemptr(struct stlibrd *brdp, unsigned long offset, int line); |
| 679 | static void stli_bbyreset(struct stlibrd *brdp); |
| 680 | static void stli_stalinit(struct stlibrd *brdp); |
| 681 | static void __iomem *stli_stalgetmemptr(struct stlibrd *brdp, unsigned long offset, int line); |
| 682 | static void stli_stalreset(struct stlibrd *brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 684 | static struct stliport *stli_getport(unsigned int brdnr, unsigned int panelnr, unsigned int portnr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 686 | static int stli_initecp(struct stlibrd *brdp); |
| 687 | static int stli_initonb(struct stlibrd *brdp); |
Jiri Slaby | a00f33f | 2006-12-08 02:39:20 -0800 | [diff] [blame] | 688 | #if STLI_EISAPROBE != 0 |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 689 | static int stli_eisamemprobe(struct stlibrd *brdp); |
Jiri Slaby | a00f33f | 2006-12-08 02:39:20 -0800 | [diff] [blame] | 690 | #endif |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 691 | static int stli_initports(struct stlibrd *brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | /*****************************************************************************/ |
| 694 | |
| 695 | /* |
| 696 | * Define the driver info for a user level shared memory device. This |
| 697 | * device will work sort of like the /dev/kmem device - except that it |
| 698 | * will give access to the shared memory on the Stallion intelligent |
| 699 | * board. This is also a very useful debugging tool. |
| 700 | */ |
Arjan van de Ven | 62322d2 | 2006-07-03 00:24:21 -0700 | [diff] [blame] | 701 | static const struct file_operations stli_fsiomem = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 702 | .owner = THIS_MODULE, |
| 703 | .read = stli_memread, |
| 704 | .write = stli_memwrite, |
| 705 | .ioctl = stli_memioctl, |
| 706 | }; |
| 707 | |
| 708 | /*****************************************************************************/ |
| 709 | |
| 710 | /* |
| 711 | * Define a timer_list entry for our poll routine. The slave board |
| 712 | * is polled every so often to see if anything needs doing. This is |
| 713 | * much cheaper on host cpu than using interrupts. It turns out to |
| 714 | * not increase character latency by much either... |
| 715 | */ |
Ingo Molnar | 8d06afa | 2005-09-09 13:10:40 -0700 | [diff] [blame] | 716 | static DEFINE_TIMER(stli_timerlist, stli_poll, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | |
| 718 | static int stli_timeron; |
| 719 | |
| 720 | /* |
| 721 | * Define the calculation for the timeout routine. |
| 722 | */ |
| 723 | #define STLI_TIMEOUT (jiffies + 1) |
| 724 | |
| 725 | /*****************************************************************************/ |
| 726 | |
gregkh@suse.de | ca8eca6 | 2005-03-23 09:53:09 -0800 | [diff] [blame] | 727 | static struct class *istallion_class; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 729 | static void stli_cleanup_ports(struct stlibrd *brdp) |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 730 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 731 | struct stliport *portp; |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 732 | unsigned int j; |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 733 | struct tty_struct *tty; |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 734 | |
| 735 | for (j = 0; j < STL_MAXPORTS; j++) { |
| 736 | portp = brdp->ports[j]; |
| 737 | if (portp != NULL) { |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 738 | tty = tty_port_tty_get(&portp->port); |
| 739 | if (tty != NULL) { |
| 740 | tty_hangup(tty); |
| 741 | tty_kref_put(tty); |
| 742 | } |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 743 | kfree(portp); |
| 744 | } |
| 745 | } |
| 746 | } |
| 747 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | /*****************************************************************************/ |
| 749 | |
| 750 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | * Parse the supplied argument string, into the board conf struct. |
| 752 | */ |
| 753 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 754 | static int stli_parsebrd(struct stlconf *confp, char **argp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | { |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 756 | unsigned int i; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 757 | char *sp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 759 | if (argp[0] == NULL || *argp[0] == 0) |
| 760 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | |
| 762 | for (sp = argp[0], i = 0; ((*sp != 0) && (i < 25)); sp++, i++) |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 763 | *sp = tolower(*sp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | |
Tobias Klauser | fe97107 | 2006-01-09 20:54:02 -0800 | [diff] [blame] | 765 | for (i = 0; i < ARRAY_SIZE(stli_brdstr); i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | if (strcmp(stli_brdstr[i].name, argp[0]) == 0) |
| 767 | break; |
| 768 | } |
Tobias Klauser | fe97107 | 2006-01-09 20:54:02 -0800 | [diff] [blame] | 769 | if (i == ARRAY_SIZE(stli_brdstr)) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 770 | printk(KERN_WARNING "istallion: unknown board name, %s?\n", argp[0]); |
Tobias Klauser | fe97107 | 2006-01-09 20:54:02 -0800 | [diff] [blame] | 771 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | confp->brdtype = stli_brdstr[i].type; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 775 | if (argp[1] != NULL && *argp[1] != 0) |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 776 | confp->ioaddr1 = simple_strtoul(argp[1], NULL, 0); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 777 | if (argp[2] != NULL && *argp[2] != 0) |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 778 | confp->memaddr = simple_strtoul(argp[2], NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | return(1); |
| 780 | } |
| 781 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | /*****************************************************************************/ |
| 783 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | static int stli_open(struct tty_struct *tty, struct file *filp) |
| 785 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 786 | struct stlibrd *brdp; |
| 787 | struct stliport *portp; |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 788 | struct tty_port *port; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 789 | unsigned int minordev, brdnr, portnr; |
| 790 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | |
| 792 | minordev = tty->index; |
| 793 | brdnr = MINOR2BRD(minordev); |
| 794 | if (brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 795 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | brdp = stli_brds[brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 797 | if (brdp == NULL) |
| 798 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | if ((brdp->state & BST_STARTED) == 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 800 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | portnr = MINOR2PORT(minordev); |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 802 | if (portnr > brdp->nrports) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 803 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | |
| 805 | portp = brdp->ports[portnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 806 | if (portp == NULL) |
| 807 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | if (portp->devnr < 1) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 809 | return -ENODEV; |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 810 | port = &portp->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | |
| 812 | /* |
| 813 | * On the first open of the device setup the port hardware, and |
| 814 | * initialize the per port data structure. Since initializing the port |
| 815 | * requires several commands to the board we will need to wait for any |
| 816 | * other open that is already initializing the port. |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 817 | * |
| 818 | * Review - locking |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | */ |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 820 | tty_port_tty_set(port, tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | tty->driver_data = portp; |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 822 | port->count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | |
| 824 | wait_event_interruptible(portp->raw_wait, |
| 825 | !test_bit(ST_INITIALIZING, &portp->state)); |
| 826 | if (signal_pending(current)) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 827 | return -ERESTARTSYS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 829 | if ((portp->port.flags & ASYNC_INITIALIZED) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | set_bit(ST_INITIALIZING, &portp->state); |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 831 | if ((rc = stli_initopen(tty, brdp, portp)) >= 0) { |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 832 | /* Locking */ |
| 833 | port->flags |= ASYNC_INITIALIZED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | clear_bit(TTY_IO_ERROR, &tty->flags); |
| 835 | } |
| 836 | clear_bit(ST_INITIALIZING, &portp->state); |
| 837 | wake_up_interruptible(&portp->raw_wait); |
| 838 | if (rc < 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 839 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | } |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 841 | return tty_port_block_til_ready(&portp->port, tty, filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | } |
| 843 | |
| 844 | /*****************************************************************************/ |
| 845 | |
| 846 | static void stli_close(struct tty_struct *tty, struct file *filp) |
| 847 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 848 | struct stlibrd *brdp; |
| 849 | struct stliport *portp; |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 850 | struct tty_port *port; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 851 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | |
| 853 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 854 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | return; |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 856 | port = &portp->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 858 | if (tty_port_close_start(port, tty, filp) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | |
| 861 | /* |
| 862 | * May want to wait for data to drain before closing. The BUSY flag |
| 863 | * keeps track of whether we are still transmitting or not. It is |
| 864 | * updated by messages from the slave - indicating when all chars |
| 865 | * really have drained. |
| 866 | */ |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 867 | spin_lock_irqsave(&stli_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | if (tty == stli_txcooktty) |
| 869 | stli_flushchars(tty); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 870 | spin_unlock_irqrestore(&stli_lock, flags); |
| 871 | |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 872 | /* We end up doing this twice for the moment. This needs looking at |
| 873 | eventually. Note we still use portp->closing_wait as a result */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | if (portp->closing_wait != ASYNC_CLOSING_WAIT_NONE) |
| 875 | tty_wait_until_sent(tty, portp->closing_wait); |
| 876 | |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 877 | /* FIXME: port locking here needs attending to */ |
| 878 | port->flags &= ~ASYNC_INITIALIZED; |
| 879 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 880 | brdp = stli_brds[portp->brdnr]; |
| 881 | stli_rawclose(brdp, portp, 0, 0); |
| 882 | if (tty->termios->c_cflag & HUPCL) { |
| 883 | stli_mkasysigs(&portp->asig, 0, 0); |
| 884 | if (test_bit(ST_CMDING, &portp->state)) |
| 885 | set_bit(ST_DOSIGS, &portp->state); |
| 886 | else |
| 887 | stli_sendcmd(brdp, portp, A_SETSIGNALS, &portp->asig, |
| 888 | sizeof(asysigs_t), 0); |
| 889 | } |
| 890 | clear_bit(ST_TXBUSY, &portp->state); |
| 891 | clear_bit(ST_RXSTOP, &portp->state); |
| 892 | set_bit(TTY_IO_ERROR, &tty->flags); |
Alan Cox | ed569bf | 2008-07-22 13:44:14 +0100 | [diff] [blame] | 893 | tty_ldisc_flush(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | set_bit(ST_DOFLUSHRX, &portp->state); |
| 895 | stli_flushbuffer(tty); |
| 896 | |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 897 | tty_port_close_end(port, tty); |
| 898 | tty_port_tty_set(port, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 899 | } |
| 900 | |
| 901 | /*****************************************************************************/ |
| 902 | |
| 903 | /* |
| 904 | * Carry out first open operations on a port. This involves a number of |
| 905 | * commands to be sent to the slave. We need to open the port, set the |
| 906 | * notification events, set the initial port settings, get and set the |
| 907 | * initial signal values. We sleep and wait in between each one. But |
| 908 | * this still all happens pretty quickly. |
| 909 | */ |
| 910 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 911 | static int stli_initopen(struct tty_struct *tty, |
| 912 | struct stlibrd *brdp, struct stliport *portp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 914 | asynotify_t nt; |
| 915 | asyport_t aport; |
| 916 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | |
| 918 | if ((rc = stli_rawopen(brdp, portp, 0, 1)) < 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 919 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | |
| 921 | memset(&nt, 0, sizeof(asynotify_t)); |
| 922 | nt.data = (DT_TXLOW | DT_TXEMPTY | DT_RXBUSY | DT_RXBREAK); |
| 923 | nt.signal = SG_DCD; |
| 924 | if ((rc = stli_cmdwait(brdp, portp, A_SETNOTIFY, &nt, |
| 925 | sizeof(asynotify_t), 0)) < 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 926 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 927 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 928 | stli_mkasyport(tty, portp, &aport, tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | if ((rc = stli_cmdwait(brdp, portp, A_SETPORT, &aport, |
| 930 | sizeof(asyport_t), 0)) < 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 931 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | |
| 933 | set_bit(ST_GETSIGS, &portp->state); |
| 934 | if ((rc = stli_cmdwait(brdp, portp, A_GETSIGNALS, &portp->asig, |
| 935 | sizeof(asysigs_t), 1)) < 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 936 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | if (test_and_clear_bit(ST_GETSIGS, &portp->state)) |
| 938 | portp->sigs = stli_mktiocm(portp->asig.sigvalue); |
| 939 | stli_mkasysigs(&portp->asig, 1, 1); |
| 940 | if ((rc = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, |
| 941 | sizeof(asysigs_t), 0)) < 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 942 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 944 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | } |
| 946 | |
| 947 | /*****************************************************************************/ |
| 948 | |
| 949 | /* |
| 950 | * Send an open message to the slave. This will sleep waiting for the |
| 951 | * acknowledgement, so must have user context. We need to co-ordinate |
| 952 | * with close events here, since we don't want open and close events |
| 953 | * to overlap. |
| 954 | */ |
| 955 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 956 | static int stli_rawopen(struct stlibrd *brdp, struct stliport *portp, unsigned long arg, int wait) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 958 | cdkhdr_t __iomem *hdrp; |
| 959 | cdkctrl_t __iomem *cp; |
| 960 | unsigned char __iomem *bits; |
| 961 | unsigned long flags; |
| 962 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | |
| 964 | /* |
| 965 | * Send a message to the slave to open this port. |
| 966 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | |
| 968 | /* |
| 969 | * Slave is already closing this port. This can happen if a hangup |
| 970 | * occurs on this port. So we must wait until it is complete. The |
| 971 | * order of opens and closes may not be preserved across shared |
| 972 | * memory, so we must wait until it is complete. |
| 973 | */ |
| 974 | wait_event_interruptible(portp->raw_wait, |
| 975 | !test_bit(ST_CLOSING, &portp->state)); |
| 976 | if (signal_pending(current)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 977 | return -ERESTARTSYS; |
| 978 | } |
| 979 | |
| 980 | /* |
| 981 | * Everything is ready now, so write the open message into shared |
| 982 | * memory. Once the message is in set the service bits to say that |
| 983 | * this port wants service. |
| 984 | */ |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 985 | spin_lock_irqsave(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 986 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 987 | cp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl; |
| 988 | writel(arg, &cp->openarg); |
| 989 | writeb(1, &cp->open); |
| 990 | hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); |
| 991 | bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | portp->portidx; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 993 | writeb(readb(bits) | portp->portbit, bits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | EBRDDISABLE(brdp); |
| 995 | |
| 996 | if (wait == 0) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 997 | spin_unlock_irqrestore(&brd_lock, flags); |
| 998 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | } |
| 1000 | |
| 1001 | /* |
| 1002 | * Slave is in action, so now we must wait for the open acknowledgment |
| 1003 | * to come back. |
| 1004 | */ |
| 1005 | rc = 0; |
| 1006 | set_bit(ST_OPENING, &portp->state); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1007 | spin_unlock_irqrestore(&brd_lock, flags); |
| 1008 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | wait_event_interruptible(portp->raw_wait, |
| 1010 | !test_bit(ST_OPENING, &portp->state)); |
| 1011 | if (signal_pending(current)) |
| 1012 | rc = -ERESTARTSYS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | |
| 1014 | if ((rc == 0) && (portp->rc != 0)) |
| 1015 | rc = -EIO; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1016 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1017 | } |
| 1018 | |
| 1019 | /*****************************************************************************/ |
| 1020 | |
| 1021 | /* |
| 1022 | * Send a close message to the slave. Normally this will sleep waiting |
| 1023 | * for the acknowledgement, but if wait parameter is 0 it will not. If |
| 1024 | * wait is true then must have user context (to sleep). |
| 1025 | */ |
| 1026 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1027 | static int stli_rawclose(struct stlibrd *brdp, struct stliport *portp, unsigned long arg, int wait) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1029 | cdkhdr_t __iomem *hdrp; |
| 1030 | cdkctrl_t __iomem *cp; |
| 1031 | unsigned char __iomem *bits; |
| 1032 | unsigned long flags; |
| 1033 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1034 | |
| 1035 | /* |
| 1036 | * Slave is already closing this port. This can happen if a hangup |
| 1037 | * occurs on this port. |
| 1038 | */ |
| 1039 | if (wait) { |
| 1040 | wait_event_interruptible(portp->raw_wait, |
| 1041 | !test_bit(ST_CLOSING, &portp->state)); |
| 1042 | if (signal_pending(current)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | return -ERESTARTSYS; |
| 1044 | } |
| 1045 | } |
| 1046 | |
| 1047 | /* |
| 1048 | * Write the close command into shared memory. |
| 1049 | */ |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1050 | spin_lock_irqsave(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1052 | cp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl; |
| 1053 | writel(arg, &cp->closearg); |
| 1054 | writeb(1, &cp->close); |
| 1055 | hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); |
| 1056 | bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1057 | portp->portidx; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1058 | writeb(readb(bits) |portp->portbit, bits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1059 | EBRDDISABLE(brdp); |
| 1060 | |
| 1061 | set_bit(ST_CLOSING, &portp->state); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1062 | spin_unlock_irqrestore(&brd_lock, flags); |
| 1063 | |
| 1064 | if (wait == 0) |
| 1065 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1066 | |
| 1067 | /* |
| 1068 | * Slave is in action, so now we must wait for the open acknowledgment |
| 1069 | * to come back. |
| 1070 | */ |
| 1071 | rc = 0; |
| 1072 | wait_event_interruptible(portp->raw_wait, |
| 1073 | !test_bit(ST_CLOSING, &portp->state)); |
| 1074 | if (signal_pending(current)) |
| 1075 | rc = -ERESTARTSYS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1076 | |
| 1077 | if ((rc == 0) && (portp->rc != 0)) |
| 1078 | rc = -EIO; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1079 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1080 | } |
| 1081 | |
| 1082 | /*****************************************************************************/ |
| 1083 | |
| 1084 | /* |
| 1085 | * Send a command to the slave and wait for the response. This must |
| 1086 | * have user context (it sleeps). This routine is generic in that it |
| 1087 | * can send any type of command. Its purpose is to wait for that command |
| 1088 | * to complete (as opposed to initiating the command then returning). |
| 1089 | */ |
| 1090 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1091 | static int stli_cmdwait(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1093 | wait_event_interruptible(portp->raw_wait, |
| 1094 | !test_bit(ST_CMDING, &portp->state)); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1095 | if (signal_pending(current)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | return -ERESTARTSYS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | |
| 1098 | stli_sendcmd(brdp, portp, cmd, arg, size, copyback); |
| 1099 | |
| 1100 | wait_event_interruptible(portp->raw_wait, |
| 1101 | !test_bit(ST_CMDING, &portp->state)); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1102 | if (signal_pending(current)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1103 | return -ERESTARTSYS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | |
| 1105 | if (portp->rc != 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1106 | return -EIO; |
| 1107 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | } |
| 1109 | |
| 1110 | /*****************************************************************************/ |
| 1111 | |
| 1112 | /* |
| 1113 | * Send the termios settings for this port to the slave. This sleeps |
| 1114 | * waiting for the command to complete - so must have user context. |
| 1115 | */ |
| 1116 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1117 | static int stli_setport(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | { |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1119 | struct stliport *portp = tty->driver_data; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1120 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1121 | asyport_t aport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1122 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1123 | if (portp == NULL) |
| 1124 | return -ENODEV; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1125 | if (portp->brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1126 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1127 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1128 | if (brdp == NULL) |
| 1129 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1131 | stli_mkasyport(tty, portp, &aport, tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1132 | return(stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0)); |
| 1133 | } |
| 1134 | |
| 1135 | /*****************************************************************************/ |
| 1136 | |
Alan Cox | 31f3593 | 2009-01-02 13:45:05 +0000 | [diff] [blame] | 1137 | static int stli_carrier_raised(struct tty_port *port) |
| 1138 | { |
| 1139 | struct stliport *portp = container_of(port, struct stliport, port); |
| 1140 | return (portp->sigs & TIOCM_CD) ? 1 : 0; |
| 1141 | } |
| 1142 | |
Alan Cox | fcc8ac1 | 2009-06-11 12:24:17 +0100 | [diff] [blame] | 1143 | static void stli_dtr_rts(struct tty_port *port, int on) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | { |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 1145 | struct stliport *portp = container_of(port, struct stliport, port); |
| 1146 | struct stlibrd *brdp = stli_brds[portp->brdnr]; |
Alan Cox | fcc8ac1 | 2009-06-11 12:24:17 +0100 | [diff] [blame] | 1147 | stli_mkasysigs(&portp->asig, on, on); |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 1148 | if (stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, |
| 1149 | sizeof(asysigs_t), 0) < 0) |
Alan Cox | fcc8ac1 | 2009-06-11 12:24:17 +0100 | [diff] [blame] | 1150 | printk(KERN_WARNING "istallion: dtr set failed.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | } |
| 1152 | |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 1153 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | /*****************************************************************************/ |
| 1155 | |
| 1156 | /* |
| 1157 | * Write routine. Take the data and put it in the shared memory ring |
| 1158 | * queue. If port is not already sending chars then need to mark the |
| 1159 | * service bits for this port. |
| 1160 | */ |
| 1161 | |
| 1162 | static int stli_write(struct tty_struct *tty, const unsigned char *buf, int count) |
| 1163 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1164 | cdkasy_t __iomem *ap; |
| 1165 | cdkhdr_t __iomem *hdrp; |
| 1166 | unsigned char __iomem *bits; |
| 1167 | unsigned char __iomem *shbuf; |
| 1168 | unsigned char *chbuf; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1169 | struct stliport *portp; |
| 1170 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1171 | unsigned int len, stlen, head, tail, size; |
| 1172 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1174 | if (tty == stli_txcooktty) |
| 1175 | stli_flushchars(tty); |
| 1176 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1177 | if (portp == NULL) |
| 1178 | return 0; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1179 | if (portp->brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1180 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1181 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1182 | if (brdp == NULL) |
| 1183 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1184 | chbuf = (unsigned char *) buf; |
| 1185 | |
| 1186 | /* |
| 1187 | * All data is now local, shove as much as possible into shared memory. |
| 1188 | */ |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1189 | spin_lock_irqsave(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1190 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1191 | ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr); |
| 1192 | head = (unsigned int) readw(&ap->txq.head); |
| 1193 | tail = (unsigned int) readw(&ap->txq.tail); |
| 1194 | if (tail != ((unsigned int) readw(&ap->txq.tail))) |
| 1195 | tail = (unsigned int) readw(&ap->txq.tail); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | size = portp->txsize; |
| 1197 | if (head >= tail) { |
| 1198 | len = size - (head - tail) - 1; |
| 1199 | stlen = size - head; |
| 1200 | } else { |
| 1201 | len = tail - head - 1; |
| 1202 | stlen = len; |
| 1203 | } |
| 1204 | |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1205 | len = min(len, (unsigned int)count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1206 | count = 0; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1207 | shbuf = (char __iomem *) EBRDGETMEMPTR(brdp, portp->txoffset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | |
| 1209 | while (len > 0) { |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1210 | stlen = min(len, stlen); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1211 | memcpy_toio(shbuf + head, chbuf, stlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1212 | chbuf += stlen; |
| 1213 | len -= stlen; |
| 1214 | count += stlen; |
| 1215 | head += stlen; |
| 1216 | if (head >= size) { |
| 1217 | head = 0; |
| 1218 | stlen = tail; |
| 1219 | } |
| 1220 | } |
| 1221 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1222 | ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr); |
| 1223 | writew(head, &ap->txq.head); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1224 | if (test_bit(ST_TXBUSY, &portp->state)) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1225 | if (readl(&ap->changed.data) & DT_TXEMPTY) |
| 1226 | writel(readl(&ap->changed.data) & ~DT_TXEMPTY, &ap->changed.data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1227 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1228 | hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); |
| 1229 | bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1230 | portp->portidx; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1231 | writeb(readb(bits) | portp->portbit, bits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | set_bit(ST_TXBUSY, &portp->state); |
| 1233 | EBRDDISABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1234 | spin_unlock_irqrestore(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1235 | |
| 1236 | return(count); |
| 1237 | } |
| 1238 | |
| 1239 | /*****************************************************************************/ |
| 1240 | |
| 1241 | /* |
| 1242 | * Output a single character. We put it into a temporary local buffer |
| 1243 | * (for speed) then write out that buffer when the flushchars routine |
| 1244 | * is called. There is a safety catch here so that if some other port |
| 1245 | * writes chars before the current buffer has been, then we write them |
| 1246 | * first them do the new ports. |
| 1247 | */ |
| 1248 | |
Wang Chen | 42a77a1 | 2008-07-21 17:48:59 +0800 | [diff] [blame] | 1249 | static int stli_putchar(struct tty_struct *tty, unsigned char ch) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1251 | if (tty != stli_txcooktty) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1252 | if (stli_txcooktty != NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1253 | stli_flushchars(stli_txcooktty); |
| 1254 | stli_txcooktty = tty; |
| 1255 | } |
| 1256 | |
| 1257 | stli_txcookbuf[stli_txcooksize++] = ch; |
Wang Chen | 42a77a1 | 2008-07-21 17:48:59 +0800 | [diff] [blame] | 1258 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | } |
| 1260 | |
| 1261 | /*****************************************************************************/ |
| 1262 | |
| 1263 | /* |
| 1264 | * Transfer characters from the local TX cooking buffer to the board. |
| 1265 | * We sort of ignore the tty that gets passed in here. We rely on the |
| 1266 | * info stored with the TX cook buffer to tell us which port to flush |
| 1267 | * the data on. In any case we clean out the TX cook buffer, for re-use |
| 1268 | * by someone else. |
| 1269 | */ |
| 1270 | |
| 1271 | static void stli_flushchars(struct tty_struct *tty) |
| 1272 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1273 | cdkhdr_t __iomem *hdrp; |
| 1274 | unsigned char __iomem *bits; |
| 1275 | cdkasy_t __iomem *ap; |
| 1276 | struct tty_struct *cooktty; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1277 | struct stliport *portp; |
| 1278 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1279 | unsigned int len, stlen, head, tail, size, count, cooksize; |
| 1280 | unsigned char *buf; |
| 1281 | unsigned char __iomem *shbuf; |
| 1282 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1283 | |
| 1284 | cooksize = stli_txcooksize; |
| 1285 | cooktty = stli_txcooktty; |
| 1286 | stli_txcooksize = 0; |
| 1287 | stli_txcookrealsize = 0; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1288 | stli_txcooktty = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1289 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1290 | if (cooktty == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1291 | return; |
| 1292 | if (tty != cooktty) |
| 1293 | tty = cooktty; |
| 1294 | if (cooksize == 0) |
| 1295 | return; |
| 1296 | |
| 1297 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1298 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1299 | return; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1300 | if (portp->brdnr >= stli_nrbrds) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | return; |
| 1302 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1303 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1304 | return; |
| 1305 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1306 | spin_lock_irqsave(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | EBRDENABLE(brdp); |
| 1308 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1309 | ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr); |
| 1310 | head = (unsigned int) readw(&ap->txq.head); |
| 1311 | tail = (unsigned int) readw(&ap->txq.tail); |
| 1312 | if (tail != ((unsigned int) readw(&ap->txq.tail))) |
| 1313 | tail = (unsigned int) readw(&ap->txq.tail); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | size = portp->txsize; |
| 1315 | if (head >= tail) { |
| 1316 | len = size - (head - tail) - 1; |
| 1317 | stlen = size - head; |
| 1318 | } else { |
| 1319 | len = tail - head - 1; |
| 1320 | stlen = len; |
| 1321 | } |
| 1322 | |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1323 | len = min(len, cooksize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1324 | count = 0; |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 1325 | shbuf = EBRDGETMEMPTR(brdp, portp->txoffset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1326 | buf = stli_txcookbuf; |
| 1327 | |
| 1328 | while (len > 0) { |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1329 | stlen = min(len, stlen); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1330 | memcpy_toio(shbuf + head, buf, stlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1331 | buf += stlen; |
| 1332 | len -= stlen; |
| 1333 | count += stlen; |
| 1334 | head += stlen; |
| 1335 | if (head >= size) { |
| 1336 | head = 0; |
| 1337 | stlen = tail; |
| 1338 | } |
| 1339 | } |
| 1340 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1341 | ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr); |
| 1342 | writew(head, &ap->txq.head); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1343 | |
| 1344 | if (test_bit(ST_TXBUSY, &portp->state)) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1345 | if (readl(&ap->changed.data) & DT_TXEMPTY) |
| 1346 | writel(readl(&ap->changed.data) & ~DT_TXEMPTY, &ap->changed.data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1347 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1348 | hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); |
| 1349 | bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1350 | portp->portidx; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1351 | writeb(readb(bits) | portp->portbit, bits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1352 | set_bit(ST_TXBUSY, &portp->state); |
| 1353 | |
| 1354 | EBRDDISABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1355 | spin_unlock_irqrestore(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1356 | } |
| 1357 | |
| 1358 | /*****************************************************************************/ |
| 1359 | |
| 1360 | static int stli_writeroom(struct tty_struct *tty) |
| 1361 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1362 | cdkasyrq_t __iomem *rp; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1363 | struct stliport *portp; |
| 1364 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1365 | unsigned int head, tail, len; |
| 1366 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | if (tty == stli_txcooktty) { |
| 1369 | if (stli_txcookrealsize != 0) { |
| 1370 | len = stli_txcookrealsize - stli_txcooksize; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1371 | return len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1372 | } |
| 1373 | } |
| 1374 | |
| 1375 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1376 | if (portp == NULL) |
| 1377 | return 0; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1378 | if (portp->brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1379 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1380 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1381 | if (brdp == NULL) |
| 1382 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1384 | spin_lock_irqsave(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1385 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1386 | rp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->txq; |
| 1387 | head = (unsigned int) readw(&rp->head); |
| 1388 | tail = (unsigned int) readw(&rp->tail); |
| 1389 | if (tail != ((unsigned int) readw(&rp->tail))) |
| 1390 | tail = (unsigned int) readw(&rp->tail); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1391 | len = (head >= tail) ? (portp->txsize - (head - tail)) : (tail - head); |
| 1392 | len--; |
| 1393 | EBRDDISABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1394 | spin_unlock_irqrestore(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1395 | |
| 1396 | if (tty == stli_txcooktty) { |
| 1397 | stli_txcookrealsize = len; |
| 1398 | len -= stli_txcooksize; |
| 1399 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1400 | return len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1401 | } |
| 1402 | |
| 1403 | /*****************************************************************************/ |
| 1404 | |
| 1405 | /* |
| 1406 | * Return the number of characters in the transmit buffer. Normally we |
| 1407 | * will return the number of chars in the shared memory ring queue. |
| 1408 | * We need to kludge around the case where the shared memory buffer is |
| 1409 | * empty but not all characters have drained yet, for this case just |
| 1410 | * return that there is 1 character in the buffer! |
| 1411 | */ |
| 1412 | |
| 1413 | static int stli_charsinbuffer(struct tty_struct *tty) |
| 1414 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1415 | cdkasyrq_t __iomem *rp; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1416 | struct stliport *portp; |
| 1417 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1418 | unsigned int head, tail, len; |
| 1419 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1420 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | if (tty == stli_txcooktty) |
| 1422 | stli_flushchars(tty); |
| 1423 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1424 | if (portp == NULL) |
| 1425 | return 0; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1426 | if (portp->brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1427 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1428 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1429 | if (brdp == NULL) |
| 1430 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1431 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1432 | spin_lock_irqsave(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1433 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1434 | rp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->txq; |
| 1435 | head = (unsigned int) readw(&rp->head); |
| 1436 | tail = (unsigned int) readw(&rp->tail); |
| 1437 | if (tail != ((unsigned int) readw(&rp->tail))) |
| 1438 | tail = (unsigned int) readw(&rp->tail); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1439 | len = (head >= tail) ? (head - tail) : (portp->txsize - (tail - head)); |
| 1440 | if ((len == 0) && test_bit(ST_TXBUSY, &portp->state)) |
| 1441 | len = 1; |
| 1442 | EBRDDISABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1443 | spin_unlock_irqrestore(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1444 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1445 | return len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1446 | } |
| 1447 | |
| 1448 | /*****************************************************************************/ |
| 1449 | |
| 1450 | /* |
| 1451 | * Generate the serial struct info. |
| 1452 | */ |
| 1453 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1454 | static int stli_getserial(struct stliport *portp, struct serial_struct __user *sp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1456 | struct serial_struct sio; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1457 | struct stlibrd *brdp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | |
| 1459 | memset(&sio, 0, sizeof(struct serial_struct)); |
| 1460 | sio.type = PORT_UNKNOWN; |
| 1461 | sio.line = portp->portnr; |
| 1462 | sio.irq = 0; |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 1463 | sio.flags = portp->port.flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1464 | sio.baud_base = portp->baud_base; |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 1465 | sio.close_delay = portp->port.close_delay; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | sio.closing_wait = portp->closing_wait; |
| 1467 | sio.custom_divisor = portp->custom_divisor; |
| 1468 | sio.xmit_fifo_size = 0; |
| 1469 | sio.hub6 = 0; |
| 1470 | |
| 1471 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1472 | if (brdp != NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | sio.port = brdp->iobase; |
| 1474 | |
| 1475 | return copy_to_user(sp, &sio, sizeof(struct serial_struct)) ? |
| 1476 | -EFAULT : 0; |
| 1477 | } |
| 1478 | |
| 1479 | /*****************************************************************************/ |
| 1480 | |
| 1481 | /* |
| 1482 | * Set port according to the serial struct info. |
| 1483 | * At this point we do not do any auto-configure stuff, so we will |
| 1484 | * just quietly ignore any requests to change irq, etc. |
| 1485 | */ |
| 1486 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1487 | static int stli_setserial(struct tty_struct *tty, struct serial_struct __user *sp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1488 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1489 | struct serial_struct sio; |
| 1490 | int rc; |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1491 | struct stliport *portp = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1492 | |
| 1493 | if (copy_from_user(&sio, sp, sizeof(struct serial_struct))) |
| 1494 | return -EFAULT; |
| 1495 | if (!capable(CAP_SYS_ADMIN)) { |
| 1496 | if ((sio.baud_base != portp->baud_base) || |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 1497 | (sio.close_delay != portp->port.close_delay) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1498 | ((sio.flags & ~ASYNC_USR_MASK) != |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 1499 | (portp->port.flags & ~ASYNC_USR_MASK))) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1500 | return -EPERM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | } |
| 1502 | |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 1503 | portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1504 | (sio.flags & ASYNC_USR_MASK); |
| 1505 | portp->baud_base = sio.baud_base; |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 1506 | portp->port.close_delay = sio.close_delay; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1507 | portp->closing_wait = sio.closing_wait; |
| 1508 | portp->custom_divisor = sio.custom_divisor; |
| 1509 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1510 | if ((rc = stli_setport(tty)) < 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1511 | return rc; |
| 1512 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1513 | } |
| 1514 | |
| 1515 | /*****************************************************************************/ |
| 1516 | |
| 1517 | static int stli_tiocmget(struct tty_struct *tty, struct file *file) |
| 1518 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1519 | struct stliport *portp = tty->driver_data; |
| 1520 | struct stlibrd *brdp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1521 | int rc; |
| 1522 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1523 | if (portp == NULL) |
| 1524 | return -ENODEV; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1525 | if (portp->brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1526 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1528 | if (brdp == NULL) |
| 1529 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1530 | if (tty->flags & (1 << TTY_IO_ERROR)) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1531 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1532 | |
| 1533 | if ((rc = stli_cmdwait(brdp, portp, A_GETSIGNALS, |
| 1534 | &portp->asig, sizeof(asysigs_t), 1)) < 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1535 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1536 | |
| 1537 | return stli_mktiocm(portp->asig.sigvalue); |
| 1538 | } |
| 1539 | |
| 1540 | static int stli_tiocmset(struct tty_struct *tty, struct file *file, |
| 1541 | unsigned int set, unsigned int clear) |
| 1542 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1543 | struct stliport *portp = tty->driver_data; |
| 1544 | struct stlibrd *brdp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1545 | int rts = -1, dtr = -1; |
| 1546 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1547 | if (portp == NULL) |
| 1548 | return -ENODEV; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1549 | if (portp->brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1550 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1551 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1552 | if (brdp == NULL) |
| 1553 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1554 | if (tty->flags & (1 << TTY_IO_ERROR)) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1555 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1556 | |
| 1557 | if (set & TIOCM_RTS) |
| 1558 | rts = 1; |
| 1559 | if (set & TIOCM_DTR) |
| 1560 | dtr = 1; |
| 1561 | if (clear & TIOCM_RTS) |
| 1562 | rts = 0; |
| 1563 | if (clear & TIOCM_DTR) |
| 1564 | dtr = 0; |
| 1565 | |
| 1566 | stli_mkasysigs(&portp->asig, dtr, rts); |
| 1567 | |
| 1568 | return stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, |
| 1569 | sizeof(asysigs_t), 0); |
| 1570 | } |
| 1571 | |
| 1572 | static int stli_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) |
| 1573 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1574 | struct stliport *portp; |
| 1575 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1576 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1577 | void __user *argp = (void __user *)arg; |
| 1578 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1579 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1580 | if (portp == NULL) |
| 1581 | return -ENODEV; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1582 | if (portp->brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1583 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1584 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1585 | if (brdp == NULL) |
| 1586 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1587 | |
| 1588 | if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && |
| 1589 | (cmd != COM_GETPORTSTATS) && (cmd != COM_CLRPORTSTATS)) { |
| 1590 | if (tty->flags & (1 << TTY_IO_ERROR)) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1591 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | } |
| 1593 | |
| 1594 | rc = 0; |
| 1595 | |
| 1596 | switch (cmd) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | case TIOCGSERIAL: |
| 1598 | rc = stli_getserial(portp, argp); |
| 1599 | break; |
| 1600 | case TIOCSSERIAL: |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1601 | rc = stli_setserial(tty, argp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1602 | break; |
| 1603 | case STL_GETPFLAG: |
| 1604 | rc = put_user(portp->pflag, (unsigned __user *)argp); |
| 1605 | break; |
| 1606 | case STL_SETPFLAG: |
| 1607 | if ((rc = get_user(portp->pflag, (unsigned __user *)argp)) == 0) |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1608 | stli_setport(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1609 | break; |
| 1610 | case COM_GETPORTSTATS: |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1611 | rc = stli_getportstats(tty, portp, argp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1612 | break; |
| 1613 | case COM_CLRPORTSTATS: |
| 1614 | rc = stli_clrportstats(portp, argp); |
| 1615 | break; |
| 1616 | case TIOCSERCONFIG: |
| 1617 | case TIOCSERGWILD: |
| 1618 | case TIOCSERSWILD: |
| 1619 | case TIOCSERGETLSR: |
| 1620 | case TIOCSERGSTRUCT: |
| 1621 | case TIOCSERGETMULTI: |
| 1622 | case TIOCSERSETMULTI: |
| 1623 | default: |
| 1624 | rc = -ENOIOCTLCMD; |
| 1625 | break; |
| 1626 | } |
| 1627 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1628 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1629 | } |
| 1630 | |
| 1631 | /*****************************************************************************/ |
| 1632 | |
| 1633 | /* |
| 1634 | * This routine assumes that we have user context and can sleep. |
| 1635 | * Looks like it is true for the current ttys implementation..!! |
| 1636 | */ |
| 1637 | |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 1638 | static void stli_settermios(struct tty_struct *tty, struct ktermios *old) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1639 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1640 | struct stliport *portp; |
| 1641 | struct stlibrd *brdp; |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 1642 | struct ktermios *tiosp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1643 | asyport_t aport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1644 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1645 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1646 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | return; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1648 | if (portp->brdnr >= stli_nrbrds) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1649 | return; |
| 1650 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1651 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1652 | return; |
| 1653 | |
| 1654 | tiosp = tty->termios; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1655 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1656 | stli_mkasyport(tty, portp, &aport, tiosp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1657 | stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0); |
| 1658 | stli_mkasysigs(&portp->asig, ((tiosp->c_cflag & CBAUD) ? 1 : 0), -1); |
| 1659 | stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, |
| 1660 | sizeof(asysigs_t), 0); |
| 1661 | if ((old->c_cflag & CRTSCTS) && ((tiosp->c_cflag & CRTSCTS) == 0)) |
| 1662 | tty->hw_stopped = 0; |
| 1663 | if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL)) |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 1664 | wake_up_interruptible(&portp->port.open_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1665 | } |
| 1666 | |
| 1667 | /*****************************************************************************/ |
| 1668 | |
| 1669 | /* |
| 1670 | * Attempt to flow control who ever is sending us data. We won't really |
| 1671 | * do any flow control action here. We can't directly, and even if we |
| 1672 | * wanted to we would have to send a command to the slave. The slave |
| 1673 | * knows how to flow control, and will do so when its buffers reach its |
| 1674 | * internal high water marks. So what we will do is set a local state |
| 1675 | * bit that will stop us sending any RX data up from the poll routine |
| 1676 | * (which is the place where RX data from the slave is handled). |
| 1677 | */ |
| 1678 | |
| 1679 | static void stli_throttle(struct tty_struct *tty) |
| 1680 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1681 | struct stliport *portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1682 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1683 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | set_bit(ST_RXSTOP, &portp->state); |
| 1685 | } |
| 1686 | |
| 1687 | /*****************************************************************************/ |
| 1688 | |
| 1689 | /* |
| 1690 | * Unflow control the device sending us data... That means that all |
| 1691 | * we have to do is clear the RXSTOP state bit. The next poll call |
| 1692 | * will then be able to pass the RX data back up. |
| 1693 | */ |
| 1694 | |
| 1695 | static void stli_unthrottle(struct tty_struct *tty) |
| 1696 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1697 | struct stliport *portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1698 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1699 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | clear_bit(ST_RXSTOP, &portp->state); |
| 1701 | } |
| 1702 | |
| 1703 | /*****************************************************************************/ |
| 1704 | |
| 1705 | /* |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1706 | * Stop the transmitter. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1707 | */ |
| 1708 | |
| 1709 | static void stli_stop(struct tty_struct *tty) |
| 1710 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1711 | } |
| 1712 | |
| 1713 | /*****************************************************************************/ |
| 1714 | |
| 1715 | /* |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1716 | * Start the transmitter again. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | */ |
| 1718 | |
| 1719 | static void stli_start(struct tty_struct *tty) |
| 1720 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1721 | } |
| 1722 | |
| 1723 | /*****************************************************************************/ |
| 1724 | |
| 1725 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1726 | * Hangup this port. This is pretty much like closing the port, only |
| 1727 | * a little more brutal. No waiting for data to drain. Shutdown the |
| 1728 | * port and maybe drop signals. This is rather tricky really. We want |
| 1729 | * to close the port as well. |
| 1730 | */ |
| 1731 | |
| 1732 | static void stli_hangup(struct tty_struct *tty) |
| 1733 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1734 | struct stliport *portp; |
| 1735 | struct stlibrd *brdp; |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 1736 | struct tty_port *port; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1737 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1738 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1739 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1740 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1741 | return; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1742 | if (portp->brdnr >= stli_nrbrds) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1743 | return; |
| 1744 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1745 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1746 | return; |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 1747 | port = &portp->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1748 | |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 1749 | spin_lock_irqsave(&port->lock, flags); |
| 1750 | port->flags &= ~ASYNC_INITIALIZED; |
| 1751 | spin_unlock_irqrestore(&port->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1752 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1753 | if (!test_bit(ST_CLOSING, &portp->state)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | stli_rawclose(brdp, portp, 0, 0); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1755 | |
| 1756 | spin_lock_irqsave(&stli_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1757 | if (tty->termios->c_cflag & HUPCL) { |
| 1758 | stli_mkasysigs(&portp->asig, 0, 0); |
| 1759 | if (test_bit(ST_CMDING, &portp->state)) { |
| 1760 | set_bit(ST_DOSIGS, &portp->state); |
| 1761 | set_bit(ST_DOFLUSHTX, &portp->state); |
| 1762 | set_bit(ST_DOFLUSHRX, &portp->state); |
| 1763 | } else { |
| 1764 | stli_sendcmd(brdp, portp, A_SETSIGNALSF, |
| 1765 | &portp->asig, sizeof(asysigs_t), 0); |
| 1766 | } |
| 1767 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1768 | |
| 1769 | clear_bit(ST_TXBUSY, &portp->state); |
| 1770 | clear_bit(ST_RXSTOP, &portp->state); |
| 1771 | set_bit(TTY_IO_ERROR, &tty->flags); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1772 | spin_unlock_irqrestore(&stli_lock, flags); |
| 1773 | |
Alan Cox | 2a6eadb | 2009-01-02 13:46:18 +0000 | [diff] [blame] | 1774 | tty_port_hangup(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1775 | } |
| 1776 | |
| 1777 | /*****************************************************************************/ |
| 1778 | |
| 1779 | /* |
| 1780 | * Flush characters from the lower buffer. We may not have user context |
| 1781 | * so we cannot sleep waiting for it to complete. Also we need to check |
| 1782 | * if there is chars for this port in the TX cook buffer, and flush them |
| 1783 | * as well. |
| 1784 | */ |
| 1785 | |
| 1786 | static void stli_flushbuffer(struct tty_struct *tty) |
| 1787 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1788 | struct stliport *portp; |
| 1789 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1790 | unsigned long ftype, flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1791 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1792 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1793 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1794 | return; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1795 | if (portp->brdnr >= stli_nrbrds) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1796 | return; |
| 1797 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1798 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | return; |
| 1800 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1801 | spin_lock_irqsave(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1802 | if (tty == stli_txcooktty) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1803 | stli_txcooktty = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1804 | stli_txcooksize = 0; |
| 1805 | stli_txcookrealsize = 0; |
| 1806 | } |
| 1807 | if (test_bit(ST_CMDING, &portp->state)) { |
| 1808 | set_bit(ST_DOFLUSHTX, &portp->state); |
| 1809 | } else { |
| 1810 | ftype = FLUSHTX; |
| 1811 | if (test_bit(ST_DOFLUSHRX, &portp->state)) { |
| 1812 | ftype |= FLUSHRX; |
| 1813 | clear_bit(ST_DOFLUSHRX, &portp->state); |
| 1814 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1815 | __stli_sendcmd(brdp, portp, A_FLUSH, &ftype, sizeof(u32), 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1816 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1817 | spin_unlock_irqrestore(&brd_lock, flags); |
| 1818 | tty_wakeup(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1819 | } |
| 1820 | |
| 1821 | /*****************************************************************************/ |
| 1822 | |
Alan Cox | 9e98966 | 2008-07-22 11:18:03 +0100 | [diff] [blame] | 1823 | static int stli_breakctl(struct tty_struct *tty, int state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1824 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1825 | struct stlibrd *brdp; |
| 1826 | struct stliport *portp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1827 | long arg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1828 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1829 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1830 | if (portp == NULL) |
Alan Cox | 9e98966 | 2008-07-22 11:18:03 +0100 | [diff] [blame] | 1831 | return -EINVAL; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1832 | if (portp->brdnr >= stli_nrbrds) |
Alan Cox | 9e98966 | 2008-07-22 11:18:03 +0100 | [diff] [blame] | 1833 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1834 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1835 | if (brdp == NULL) |
Alan Cox | 9e98966 | 2008-07-22 11:18:03 +0100 | [diff] [blame] | 1836 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1837 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1838 | arg = (state == -1) ? BREAKON : BREAKOFF; |
| 1839 | stli_cmdwait(brdp, portp, A_BREAK, &arg, sizeof(long), 0); |
Alan Cox | 9e98966 | 2008-07-22 11:18:03 +0100 | [diff] [blame] | 1840 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | } |
| 1842 | |
| 1843 | /*****************************************************************************/ |
| 1844 | |
| 1845 | static void stli_waituntilsent(struct tty_struct *tty, int timeout) |
| 1846 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1847 | struct stliport *portp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1848 | unsigned long tend; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1849 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1850 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1851 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1852 | return; |
| 1853 | |
| 1854 | if (timeout == 0) |
| 1855 | timeout = HZ; |
| 1856 | tend = jiffies + timeout; |
| 1857 | |
| 1858 | while (test_bit(ST_TXBUSY, &portp->state)) { |
| 1859 | if (signal_pending(current)) |
| 1860 | break; |
| 1861 | msleep_interruptible(20); |
| 1862 | if (time_after_eq(jiffies, tend)) |
| 1863 | break; |
| 1864 | } |
| 1865 | } |
| 1866 | |
| 1867 | /*****************************************************************************/ |
| 1868 | |
| 1869 | static void stli_sendxchar(struct tty_struct *tty, char ch) |
| 1870 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1871 | struct stlibrd *brdp; |
| 1872 | struct stliport *portp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1873 | asyctrl_t actrl; |
| 1874 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1875 | portp = tty->driver_data; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1876 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1877 | return; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1878 | if (portp->brdnr >= stli_nrbrds) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1879 | return; |
| 1880 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1881 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1882 | return; |
| 1883 | |
| 1884 | memset(&actrl, 0, sizeof(asyctrl_t)); |
| 1885 | if (ch == STOP_CHAR(tty)) { |
| 1886 | actrl.rxctrl = CT_STOPFLOW; |
| 1887 | } else if (ch == START_CHAR(tty)) { |
| 1888 | actrl.rxctrl = CT_STARTFLOW; |
| 1889 | } else { |
| 1890 | actrl.txctrl = CT_SENDCHR; |
| 1891 | actrl.tximdch = ch; |
| 1892 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1893 | stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0); |
| 1894 | } |
| 1895 | |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1896 | static void stli_portinfo(struct seq_file *m, struct stlibrd *brdp, struct stliport *portp, int portnr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1897 | { |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1898 | char *uart; |
| 1899 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1900 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 1901 | rc = stli_portcmdstats(NULL, portp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1902 | |
| 1903 | uart = "UNKNOWN"; |
| 1904 | if (brdp->state & BST_STARTED) { |
| 1905 | switch (stli_comstats.hwid) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1906 | case 0: uart = "2681"; break; |
| 1907 | case 1: uart = "SC26198"; break; |
| 1908 | default:uart = "CD1400"; break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1909 | } |
| 1910 | } |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1911 | seq_printf(m, "%d: uart:%s ", portnr, uart); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1912 | |
| 1913 | if ((brdp->state & BST_STARTED) && (rc >= 0)) { |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1914 | char sep; |
| 1915 | |
| 1916 | seq_printf(m, "tx:%d rx:%d", (int) stli_comstats.txtotal, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1917 | (int) stli_comstats.rxtotal); |
| 1918 | |
| 1919 | if (stli_comstats.rxframing) |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1920 | seq_printf(m, " fe:%d", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1921 | (int) stli_comstats.rxframing); |
| 1922 | if (stli_comstats.rxparity) |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1923 | seq_printf(m, " pe:%d", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | (int) stli_comstats.rxparity); |
| 1925 | if (stli_comstats.rxbreaks) |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1926 | seq_printf(m, " brk:%d", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1927 | (int) stli_comstats.rxbreaks); |
| 1928 | if (stli_comstats.rxoverrun) |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1929 | seq_printf(m, " oe:%d", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1930 | (int) stli_comstats.rxoverrun); |
| 1931 | |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1932 | sep = ' '; |
| 1933 | if (stli_comstats.signals & TIOCM_RTS) { |
| 1934 | seq_printf(m, "%c%s", sep, "RTS"); |
| 1935 | sep = '|'; |
| 1936 | } |
| 1937 | if (stli_comstats.signals & TIOCM_CTS) { |
| 1938 | seq_printf(m, "%c%s", sep, "CTS"); |
| 1939 | sep = '|'; |
| 1940 | } |
| 1941 | if (stli_comstats.signals & TIOCM_DTR) { |
| 1942 | seq_printf(m, "%c%s", sep, "DTR"); |
| 1943 | sep = '|'; |
| 1944 | } |
| 1945 | if (stli_comstats.signals & TIOCM_CD) { |
| 1946 | seq_printf(m, "%c%s", sep, "DCD"); |
| 1947 | sep = '|'; |
| 1948 | } |
| 1949 | if (stli_comstats.signals & TIOCM_DSR) { |
| 1950 | seq_printf(m, "%c%s", sep, "DSR"); |
| 1951 | sep = '|'; |
| 1952 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1953 | } |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1954 | seq_putc(m, '\n'); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1955 | } |
| 1956 | |
| 1957 | /*****************************************************************************/ |
| 1958 | |
| 1959 | /* |
| 1960 | * Port info, read from the /proc file system. |
| 1961 | */ |
| 1962 | |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1963 | static int stli_proc_show(struct seq_file *m, void *v) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1964 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 1965 | struct stlibrd *brdp; |
| 1966 | struct stliport *portp; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 1967 | unsigned int brdnr, portnr, totalport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1968 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1969 | totalport = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1970 | |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1971 | seq_printf(m, "%s: version %s\n", stli_drvtitle, stli_drvversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1972 | |
| 1973 | /* |
| 1974 | * We scan through for each board, panel and port. The offset is |
| 1975 | * calculated on the fly, and irrelevant ports are skipped. |
| 1976 | */ |
| 1977 | for (brdnr = 0; (brdnr < stli_nrbrds); brdnr++) { |
| 1978 | brdp = stli_brds[brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1979 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1980 | continue; |
| 1981 | if (brdp->state == 0) |
| 1982 | continue; |
| 1983 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1984 | totalport = brdnr * STL_MAXPORTS; |
| 1985 | for (portnr = 0; (portnr < brdp->nrports); portnr++, |
| 1986 | totalport++) { |
| 1987 | portp = brdp->ports[portnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 1988 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1989 | continue; |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1990 | stli_portinfo(m, brdp, portp, totalport); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1991 | } |
| 1992 | } |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1993 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1994 | } |
| 1995 | |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 1996 | static int stli_proc_open(struct inode *inode, struct file *file) |
| 1997 | { |
| 1998 | return single_open(file, stli_proc_show, NULL); |
| 1999 | } |
| 2000 | |
| 2001 | static const struct file_operations stli_proc_fops = { |
| 2002 | .owner = THIS_MODULE, |
| 2003 | .open = stli_proc_open, |
| 2004 | .read = seq_read, |
| 2005 | .llseek = seq_lseek, |
| 2006 | .release = single_release, |
| 2007 | }; |
| 2008 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2009 | /*****************************************************************************/ |
| 2010 | |
| 2011 | /* |
| 2012 | * Generic send command routine. This will send a message to the slave, |
| 2013 | * of the specified type with the specified argument. Must be very |
| 2014 | * careful of data that will be copied out from shared memory - |
| 2015 | * containing command results. The command completion is all done from |
| 2016 | * a poll routine that does not have user context. Therefore you cannot |
| 2017 | * copy back directly into user space, or to the kernel stack of a |
| 2018 | * process. This routine does not sleep, so can be called from anywhere. |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2019 | * |
| 2020 | * The caller must hold the brd_lock (see also stli_sendcmd the usual |
| 2021 | * entry point) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2022 | */ |
| 2023 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2024 | static void __stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2025 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2026 | cdkhdr_t __iomem *hdrp; |
| 2027 | cdkctrl_t __iomem *cp; |
| 2028 | unsigned char __iomem *bits; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2029 | |
| 2030 | if (test_bit(ST_CMDING, &portp->state)) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 2031 | printk(KERN_ERR "istallion: command already busy, cmd=%x!\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2032 | (int) cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2033 | return; |
| 2034 | } |
| 2035 | |
| 2036 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2037 | cp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2038 | if (size > 0) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2039 | memcpy_toio((void __iomem *) &(cp->args[0]), arg, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2040 | if (copyback) { |
| 2041 | portp->argp = arg; |
| 2042 | portp->argsize = size; |
| 2043 | } |
| 2044 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2045 | writel(0, &cp->status); |
| 2046 | writel(cmd, &cp->cmd); |
| 2047 | hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); |
| 2048 | bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2049 | portp->portidx; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2050 | writeb(readb(bits) | portp->portbit, bits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2051 | set_bit(ST_CMDING, &portp->state); |
| 2052 | EBRDDISABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2053 | } |
| 2054 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2055 | static void stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2056 | { |
| 2057 | unsigned long flags; |
| 2058 | |
| 2059 | spin_lock_irqsave(&brd_lock, flags); |
| 2060 | __stli_sendcmd(brdp, portp, cmd, arg, size, copyback); |
| 2061 | spin_unlock_irqrestore(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2062 | } |
| 2063 | |
| 2064 | /*****************************************************************************/ |
| 2065 | |
| 2066 | /* |
| 2067 | * Read data from shared memory. This assumes that the shared memory |
| 2068 | * is enabled and that interrupts are off. Basically we just empty out |
| 2069 | * the shared memory buffer into the tty buffer. Must be careful to |
| 2070 | * handle the case where we fill up the tty buffer, but still have |
| 2071 | * more chars to unload. |
| 2072 | */ |
| 2073 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2074 | static void stli_read(struct stlibrd *brdp, struct stliport *portp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2075 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2076 | cdkasyrq_t __iomem *rp; |
| 2077 | char __iomem *shbuf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2078 | struct tty_struct *tty; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2079 | unsigned int head, tail, size; |
| 2080 | unsigned int len, stlen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2081 | |
| 2082 | if (test_bit(ST_RXSTOP, &portp->state)) |
| 2083 | return; |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 2084 | tty = tty_port_tty_get(&portp->port); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2085 | if (tty == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2086 | return; |
| 2087 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2088 | rp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->rxq; |
| 2089 | head = (unsigned int) readw(&rp->head); |
| 2090 | if (head != ((unsigned int) readw(&rp->head))) |
| 2091 | head = (unsigned int) readw(&rp->head); |
| 2092 | tail = (unsigned int) readw(&rp->tail); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2093 | size = portp->rxsize; |
| 2094 | if (head >= tail) { |
| 2095 | len = head - tail; |
| 2096 | stlen = len; |
| 2097 | } else { |
| 2098 | len = size - (tail - head); |
| 2099 | stlen = size - tail; |
| 2100 | } |
| 2101 | |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 2102 | len = tty_buffer_request_room(tty, len); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2103 | |
| 2104 | shbuf = (char __iomem *) EBRDGETMEMPTR(brdp, portp->rxoffset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2105 | |
| 2106 | while (len > 0) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2107 | unsigned char *cptr; |
| 2108 | |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2109 | stlen = min(len, stlen); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2110 | tty_prepare_flip_string(tty, &cptr, stlen); |
| 2111 | memcpy_fromio(cptr, shbuf + tail, stlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2112 | len -= stlen; |
| 2113 | tail += stlen; |
| 2114 | if (tail >= size) { |
| 2115 | tail = 0; |
| 2116 | stlen = head; |
| 2117 | } |
| 2118 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2119 | rp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->rxq; |
| 2120 | writew(tail, &rp->tail); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2121 | |
| 2122 | if (head != tail) |
| 2123 | set_bit(ST_RXING, &portp->state); |
| 2124 | |
| 2125 | tty_schedule_flip(tty); |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 2126 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2127 | } |
| 2128 | |
| 2129 | /*****************************************************************************/ |
| 2130 | |
| 2131 | /* |
| 2132 | * Set up and carry out any delayed commands. There is only a small set |
| 2133 | * of slave commands that can be done "off-level". So it is not too |
| 2134 | * difficult to deal with them here. |
| 2135 | */ |
| 2136 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2137 | static void stli_dodelaycmd(struct stliport *portp, cdkctrl_t __iomem *cp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2138 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2139 | int cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2140 | |
| 2141 | if (test_bit(ST_DOSIGS, &portp->state)) { |
| 2142 | if (test_bit(ST_DOFLUSHTX, &portp->state) && |
| 2143 | test_bit(ST_DOFLUSHRX, &portp->state)) |
| 2144 | cmd = A_SETSIGNALSF; |
| 2145 | else if (test_bit(ST_DOFLUSHTX, &portp->state)) |
| 2146 | cmd = A_SETSIGNALSFTX; |
| 2147 | else if (test_bit(ST_DOFLUSHRX, &portp->state)) |
| 2148 | cmd = A_SETSIGNALSFRX; |
| 2149 | else |
| 2150 | cmd = A_SETSIGNALS; |
| 2151 | clear_bit(ST_DOFLUSHTX, &portp->state); |
| 2152 | clear_bit(ST_DOFLUSHRX, &portp->state); |
| 2153 | clear_bit(ST_DOSIGS, &portp->state); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2154 | memcpy_toio((void __iomem *) &(cp->args[0]), (void *) &portp->asig, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2155 | sizeof(asysigs_t)); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2156 | writel(0, &cp->status); |
| 2157 | writel(cmd, &cp->cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2158 | set_bit(ST_CMDING, &portp->state); |
| 2159 | } else if (test_bit(ST_DOFLUSHTX, &portp->state) || |
| 2160 | test_bit(ST_DOFLUSHRX, &portp->state)) { |
| 2161 | cmd = ((test_bit(ST_DOFLUSHTX, &portp->state)) ? FLUSHTX : 0); |
| 2162 | cmd |= ((test_bit(ST_DOFLUSHRX, &portp->state)) ? FLUSHRX : 0); |
| 2163 | clear_bit(ST_DOFLUSHTX, &portp->state); |
| 2164 | clear_bit(ST_DOFLUSHRX, &portp->state); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2165 | memcpy_toio((void __iomem *) &(cp->args[0]), (void *) &cmd, sizeof(int)); |
| 2166 | writel(0, &cp->status); |
| 2167 | writel(A_FLUSH, &cp->cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2168 | set_bit(ST_CMDING, &portp->state); |
| 2169 | } |
| 2170 | } |
| 2171 | |
| 2172 | /*****************************************************************************/ |
| 2173 | |
| 2174 | /* |
| 2175 | * Host command service checking. This handles commands or messages |
| 2176 | * coming from the slave to the host. Must have board shared memory |
| 2177 | * enabled and interrupts off when called. Notice that by servicing the |
| 2178 | * read data last we don't need to change the shared memory pointer |
| 2179 | * during processing (which is a slow IO operation). |
| 2180 | * Return value indicates if this port is still awaiting actions from |
| 2181 | * the slave (like open, command, or even TX data being sent). If 0 |
| 2182 | * then port is still busy, otherwise no longer busy. |
| 2183 | */ |
| 2184 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2185 | static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2186 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2187 | cdkasy_t __iomem *ap; |
| 2188 | cdkctrl_t __iomem *cp; |
| 2189 | struct tty_struct *tty; |
| 2190 | asynotify_t nt; |
| 2191 | unsigned long oldsigs; |
| 2192 | int rc, donerx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2193 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2194 | ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2195 | cp = &ap->ctrl; |
| 2196 | |
| 2197 | /* |
| 2198 | * Check if we are waiting for an open completion message. |
| 2199 | */ |
| 2200 | if (test_bit(ST_OPENING, &portp->state)) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2201 | rc = readl(&cp->openarg); |
| 2202 | if (readb(&cp->open) == 0 && rc != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2203 | if (rc > 0) |
| 2204 | rc--; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2205 | writel(0, &cp->openarg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2206 | portp->rc = rc; |
| 2207 | clear_bit(ST_OPENING, &portp->state); |
| 2208 | wake_up_interruptible(&portp->raw_wait); |
| 2209 | } |
| 2210 | } |
| 2211 | |
| 2212 | /* |
| 2213 | * Check if we are waiting for a close completion message. |
| 2214 | */ |
| 2215 | if (test_bit(ST_CLOSING, &portp->state)) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2216 | rc = (int) readl(&cp->closearg); |
| 2217 | if (readb(&cp->close) == 0 && rc != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2218 | if (rc > 0) |
| 2219 | rc--; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2220 | writel(0, &cp->closearg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2221 | portp->rc = rc; |
| 2222 | clear_bit(ST_CLOSING, &portp->state); |
| 2223 | wake_up_interruptible(&portp->raw_wait); |
| 2224 | } |
| 2225 | } |
| 2226 | |
| 2227 | /* |
| 2228 | * Check if we are waiting for a command completion message. We may |
| 2229 | * need to copy out the command results associated with this command. |
| 2230 | */ |
| 2231 | if (test_bit(ST_CMDING, &portp->state)) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2232 | rc = readl(&cp->status); |
| 2233 | if (readl(&cp->cmd) == 0 && rc != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2234 | if (rc > 0) |
| 2235 | rc--; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2236 | if (portp->argp != NULL) { |
| 2237 | memcpy_fromio(portp->argp, (void __iomem *) &(cp->args[0]), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2238 | portp->argsize); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2239 | portp->argp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2240 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2241 | writel(0, &cp->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2242 | portp->rc = rc; |
| 2243 | clear_bit(ST_CMDING, &portp->state); |
| 2244 | stli_dodelaycmd(portp, cp); |
| 2245 | wake_up_interruptible(&portp->raw_wait); |
| 2246 | } |
| 2247 | } |
| 2248 | |
| 2249 | /* |
| 2250 | * Check for any notification messages ready. This includes lots of |
| 2251 | * different types of events - RX chars ready, RX break received, |
| 2252 | * TX data low or empty in the slave, modem signals changed state. |
| 2253 | */ |
| 2254 | donerx = 0; |
| 2255 | |
| 2256 | if (ap->notify) { |
| 2257 | nt = ap->changed; |
| 2258 | ap->notify = 0; |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 2259 | tty = tty_port_tty_get(&portp->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2260 | |
| 2261 | if (nt.signal & SG_DCD) { |
| 2262 | oldsigs = portp->sigs; |
| 2263 | portp->sigs = stli_mktiocm(nt.sigvalue); |
| 2264 | clear_bit(ST_GETSIGS, &portp->state); |
| 2265 | if ((portp->sigs & TIOCM_CD) && |
| 2266 | ((oldsigs & TIOCM_CD) == 0)) |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2267 | wake_up_interruptible(&portp->port.open_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2268 | if ((oldsigs & TIOCM_CD) && |
| 2269 | ((portp->sigs & TIOCM_CD) == 0)) { |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2270 | if (portp->port.flags & ASYNC_CHECK_CD) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2271 | if (tty) |
Jiri Slaby | cfccaee | 2008-02-07 00:16:38 -0800 | [diff] [blame] | 2272 | tty_hangup(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2273 | } |
| 2274 | } |
| 2275 | } |
| 2276 | |
| 2277 | if (nt.data & DT_TXEMPTY) |
| 2278 | clear_bit(ST_TXBUSY, &portp->state); |
| 2279 | if (nt.data & (DT_TXEMPTY | DT_TXLOW)) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2280 | if (tty != NULL) { |
| 2281 | tty_wakeup(tty); |
| 2282 | EBRDENABLE(brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2283 | } |
| 2284 | } |
| 2285 | |
| 2286 | if ((nt.data & DT_RXBREAK) && (portp->rxmarkmsk & BRKINT)) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2287 | if (tty != NULL) { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 2288 | tty_insert_flip_char(tty, 0, TTY_BREAK); |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2289 | if (portp->port.flags & ASYNC_SAK) { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 2290 | do_SAK(tty); |
| 2291 | EBRDENABLE(brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2292 | } |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 2293 | tty_schedule_flip(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2294 | } |
| 2295 | } |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 2296 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2297 | |
| 2298 | if (nt.data & DT_RXBUSY) { |
| 2299 | donerx++; |
| 2300 | stli_read(brdp, portp); |
| 2301 | } |
| 2302 | } |
| 2303 | |
| 2304 | /* |
| 2305 | * It might seem odd that we are checking for more RX chars here. |
| 2306 | * But, we need to handle the case where the tty buffer was previously |
| 2307 | * filled, but we had more characters to pass up. The slave will not |
| 2308 | * send any more RX notify messages until the RX buffer has been emptied. |
| 2309 | * But it will leave the service bits on (since the buffer is not empty). |
| 2310 | * So from here we can try to process more RX chars. |
| 2311 | */ |
| 2312 | if ((!donerx) && test_bit(ST_RXING, &portp->state)) { |
| 2313 | clear_bit(ST_RXING, &portp->state); |
| 2314 | stli_read(brdp, portp); |
| 2315 | } |
| 2316 | |
| 2317 | return((test_bit(ST_OPENING, &portp->state) || |
| 2318 | test_bit(ST_CLOSING, &portp->state) || |
| 2319 | test_bit(ST_CMDING, &portp->state) || |
| 2320 | test_bit(ST_TXBUSY, &portp->state) || |
| 2321 | test_bit(ST_RXING, &portp->state)) ? 0 : 1); |
| 2322 | } |
| 2323 | |
| 2324 | /*****************************************************************************/ |
| 2325 | |
| 2326 | /* |
| 2327 | * Service all ports on a particular board. Assumes that the boards |
| 2328 | * shared memory is enabled, and that the page pointer is pointed |
| 2329 | * at the cdk header structure. |
| 2330 | */ |
| 2331 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2332 | static void stli_brdpoll(struct stlibrd *brdp, cdkhdr_t __iomem *hdrp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2333 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2334 | struct stliport *portp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2335 | unsigned char hostbits[(STL_MAXCHANS / 8) + 1]; |
| 2336 | unsigned char slavebits[(STL_MAXCHANS / 8) + 1]; |
| 2337 | unsigned char __iomem *slavep; |
| 2338 | int bitpos, bitat, bitsize; |
| 2339 | int channr, nrdevs, slavebitchange; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2340 | |
| 2341 | bitsize = brdp->bitsize; |
| 2342 | nrdevs = brdp->nrdevs; |
| 2343 | |
| 2344 | /* |
| 2345 | * Check if slave wants any service. Basically we try to do as |
| 2346 | * little work as possible here. There are 2 levels of service |
| 2347 | * bits. So if there is nothing to do we bail early. We check |
| 2348 | * 8 service bits at a time in the inner loop, so we can bypass |
| 2349 | * the lot if none of them want service. |
| 2350 | */ |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2351 | memcpy_fromio(&hostbits[0], (((unsigned char __iomem *) hdrp) + brdp->hostoffset), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2352 | bitsize); |
| 2353 | |
| 2354 | memset(&slavebits[0], 0, bitsize); |
| 2355 | slavebitchange = 0; |
| 2356 | |
| 2357 | for (bitpos = 0; (bitpos < bitsize); bitpos++) { |
| 2358 | if (hostbits[bitpos] == 0) |
| 2359 | continue; |
| 2360 | channr = bitpos * 8; |
| 2361 | for (bitat = 0x1; (channr < nrdevs); channr++, bitat <<= 1) { |
| 2362 | if (hostbits[bitpos] & bitat) { |
| 2363 | portp = brdp->ports[(channr - 1)]; |
| 2364 | if (stli_hostcmd(brdp, portp)) { |
| 2365 | slavebitchange++; |
| 2366 | slavebits[bitpos] |= bitat; |
| 2367 | } |
| 2368 | } |
| 2369 | } |
| 2370 | } |
| 2371 | |
| 2372 | /* |
| 2373 | * If any of the ports are no longer busy then update them in the |
| 2374 | * slave request bits. We need to do this after, since a host port |
| 2375 | * service may initiate more slave requests. |
| 2376 | */ |
| 2377 | if (slavebitchange) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2378 | hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); |
| 2379 | slavep = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | for (bitpos = 0; (bitpos < bitsize); bitpos++) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2381 | if (readb(slavebits + bitpos)) |
| 2382 | writeb(readb(slavep + bitpos) & ~slavebits[bitpos], slavebits + bitpos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2383 | } |
| 2384 | } |
| 2385 | } |
| 2386 | |
| 2387 | /*****************************************************************************/ |
| 2388 | |
| 2389 | /* |
| 2390 | * Driver poll routine. This routine polls the boards in use and passes |
| 2391 | * messages back up to host when necessary. This is actually very |
| 2392 | * CPU efficient, since we will always have the kernel poll clock, it |
| 2393 | * adds only a few cycles when idle (since board service can be |
| 2394 | * determined very easily), but when loaded generates no interrupts |
| 2395 | * (with their expensive associated context change). |
| 2396 | */ |
| 2397 | |
| 2398 | static void stli_poll(unsigned long arg) |
| 2399 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2400 | cdkhdr_t __iomem *hdrp; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2401 | struct stlibrd *brdp; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 2402 | unsigned int brdnr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2403 | |
Jiri Slaby | ff8efe9 | 2006-12-08 02:39:27 -0800 | [diff] [blame] | 2404 | mod_timer(&stli_timerlist, STLI_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2405 | |
| 2406 | /* |
| 2407 | * Check each board and do any servicing required. |
| 2408 | */ |
| 2409 | for (brdnr = 0; (brdnr < stli_nrbrds); brdnr++) { |
| 2410 | brdp = stli_brds[brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2411 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2412 | continue; |
| 2413 | if ((brdp->state & BST_STARTED) == 0) |
| 2414 | continue; |
| 2415 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2416 | spin_lock(&brd_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2417 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2418 | hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); |
| 2419 | if (readb(&hdrp->hostreq)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2420 | stli_brdpoll(brdp, hdrp); |
| 2421 | EBRDDISABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2422 | spin_unlock(&brd_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2423 | } |
| 2424 | } |
| 2425 | |
| 2426 | /*****************************************************************************/ |
| 2427 | |
| 2428 | /* |
| 2429 | * Translate the termios settings into the port setting structure of |
| 2430 | * the slave. |
| 2431 | */ |
| 2432 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 2433 | static void stli_mkasyport(struct tty_struct *tty, struct stliport *portp, |
| 2434 | asyport_t *pp, struct ktermios *tiosp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2435 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2436 | memset(pp, 0, sizeof(asyport_t)); |
| 2437 | |
| 2438 | /* |
| 2439 | * Start of by setting the baud, char size, parity and stop bit info. |
| 2440 | */ |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 2441 | pp->baudout = tty_get_baud_rate(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2442 | if ((tiosp->c_cflag & CBAUD) == B38400) { |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2443 | if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2444 | pp->baudout = 57600; |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2445 | else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2446 | pp->baudout = 115200; |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2447 | else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2448 | pp->baudout = 230400; |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2449 | else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2450 | pp->baudout = 460800; |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2451 | else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2452 | pp->baudout = (portp->baud_base / portp->custom_divisor); |
| 2453 | } |
| 2454 | if (pp->baudout > STL_MAXBAUD) |
| 2455 | pp->baudout = STL_MAXBAUD; |
| 2456 | pp->baudin = pp->baudout; |
| 2457 | |
| 2458 | switch (tiosp->c_cflag & CSIZE) { |
| 2459 | case CS5: |
| 2460 | pp->csize = 5; |
| 2461 | break; |
| 2462 | case CS6: |
| 2463 | pp->csize = 6; |
| 2464 | break; |
| 2465 | case CS7: |
| 2466 | pp->csize = 7; |
| 2467 | break; |
| 2468 | default: |
| 2469 | pp->csize = 8; |
| 2470 | break; |
| 2471 | } |
| 2472 | |
| 2473 | if (tiosp->c_cflag & CSTOPB) |
| 2474 | pp->stopbs = PT_STOP2; |
| 2475 | else |
| 2476 | pp->stopbs = PT_STOP1; |
| 2477 | |
| 2478 | if (tiosp->c_cflag & PARENB) { |
| 2479 | if (tiosp->c_cflag & PARODD) |
| 2480 | pp->parity = PT_ODDPARITY; |
| 2481 | else |
| 2482 | pp->parity = PT_EVENPARITY; |
| 2483 | } else { |
| 2484 | pp->parity = PT_NOPARITY; |
| 2485 | } |
| 2486 | |
| 2487 | /* |
| 2488 | * Set up any flow control options enabled. |
| 2489 | */ |
| 2490 | if (tiosp->c_iflag & IXON) { |
| 2491 | pp->flow |= F_IXON; |
| 2492 | if (tiosp->c_iflag & IXANY) |
| 2493 | pp->flow |= F_IXANY; |
| 2494 | } |
| 2495 | if (tiosp->c_cflag & CRTSCTS) |
| 2496 | pp->flow |= (F_RTSFLOW | F_CTSFLOW); |
| 2497 | |
| 2498 | pp->startin = tiosp->c_cc[VSTART]; |
| 2499 | pp->stopin = tiosp->c_cc[VSTOP]; |
| 2500 | pp->startout = tiosp->c_cc[VSTART]; |
| 2501 | pp->stopout = tiosp->c_cc[VSTOP]; |
| 2502 | |
| 2503 | /* |
| 2504 | * Set up the RX char marking mask with those RX error types we must |
| 2505 | * catch. We can get the slave to help us out a little here, it will |
| 2506 | * ignore parity errors and breaks for us, and mark parity errors in |
| 2507 | * the data stream. |
| 2508 | */ |
| 2509 | if (tiosp->c_iflag & IGNPAR) |
| 2510 | pp->iflag |= FI_IGNRXERRS; |
| 2511 | if (tiosp->c_iflag & IGNBRK) |
| 2512 | pp->iflag |= FI_IGNBREAK; |
| 2513 | |
| 2514 | portp->rxmarkmsk = 0; |
| 2515 | if (tiosp->c_iflag & (INPCK | PARMRK)) |
| 2516 | pp->iflag |= FI_1MARKRXERRS; |
| 2517 | if (tiosp->c_iflag & BRKINT) |
| 2518 | portp->rxmarkmsk |= BRKINT; |
| 2519 | |
| 2520 | /* |
| 2521 | * Set up clocal processing as required. |
| 2522 | */ |
| 2523 | if (tiosp->c_cflag & CLOCAL) |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2524 | portp->port.flags &= ~ASYNC_CHECK_CD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2525 | else |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2526 | portp->port.flags |= ASYNC_CHECK_CD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2527 | |
| 2528 | /* |
| 2529 | * Transfer any persistent flags into the asyport structure. |
| 2530 | */ |
| 2531 | pp->pflag = (portp->pflag & 0xffff); |
| 2532 | pp->vmin = (portp->pflag & P_RXIMIN) ? 1 : 0; |
| 2533 | pp->vtime = (portp->pflag & P_RXITIME) ? 1 : 0; |
| 2534 | pp->cc[1] = (portp->pflag & P_RXTHOLD) ? 1 : 0; |
| 2535 | } |
| 2536 | |
| 2537 | /*****************************************************************************/ |
| 2538 | |
| 2539 | /* |
| 2540 | * Construct a slave signals structure for setting the DTR and RTS |
| 2541 | * signals as specified. |
| 2542 | */ |
| 2543 | |
| 2544 | static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts) |
| 2545 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2546 | memset(sp, 0, sizeof(asysigs_t)); |
| 2547 | if (dtr >= 0) { |
| 2548 | sp->signal |= SG_DTR; |
| 2549 | sp->sigvalue |= ((dtr > 0) ? SG_DTR : 0); |
| 2550 | } |
| 2551 | if (rts >= 0) { |
| 2552 | sp->signal |= SG_RTS; |
| 2553 | sp->sigvalue |= ((rts > 0) ? SG_RTS : 0); |
| 2554 | } |
| 2555 | } |
| 2556 | |
| 2557 | /*****************************************************************************/ |
| 2558 | |
| 2559 | /* |
| 2560 | * Convert the signals returned from the slave into a local TIOCM type |
| 2561 | * signals value. We keep them locally in TIOCM format. |
| 2562 | */ |
| 2563 | |
| 2564 | static long stli_mktiocm(unsigned long sigvalue) |
| 2565 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2566 | long tiocm = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2567 | tiocm |= ((sigvalue & SG_DCD) ? TIOCM_CD : 0); |
| 2568 | tiocm |= ((sigvalue & SG_CTS) ? TIOCM_CTS : 0); |
| 2569 | tiocm |= ((sigvalue & SG_RI) ? TIOCM_RI : 0); |
| 2570 | tiocm |= ((sigvalue & SG_DSR) ? TIOCM_DSR : 0); |
| 2571 | tiocm |= ((sigvalue & SG_DTR) ? TIOCM_DTR : 0); |
| 2572 | tiocm |= ((sigvalue & SG_RTS) ? TIOCM_RTS : 0); |
| 2573 | return(tiocm); |
| 2574 | } |
| 2575 | |
| 2576 | /*****************************************************************************/ |
| 2577 | |
| 2578 | /* |
| 2579 | * All panels and ports actually attached have been worked out. All |
| 2580 | * we need to do here is set up the appropriate per port data structures. |
| 2581 | */ |
| 2582 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2583 | static int stli_initports(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2584 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2585 | struct stliport *portp; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 2586 | unsigned int i, panelnr, panelport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2587 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2588 | for (i = 0, panelnr = 0, panelport = 0; (i < brdp->nrports); i++) { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2589 | portp = kzalloc(sizeof(struct stliport), GFP_KERNEL); |
Tobias Klauser | b0b4ed7 | 2006-03-31 02:30:56 -0800 | [diff] [blame] | 2590 | if (!portp) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 2591 | printk(KERN_WARNING "istallion: failed to allocate port structure\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2592 | continue; |
| 2593 | } |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 2594 | tty_port_init(&portp->port); |
Alan Cox | 31f3593 | 2009-01-02 13:45:05 +0000 | [diff] [blame] | 2595 | portp->port.ops = &stli_port_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2596 | portp->magic = STLI_PORTMAGIC; |
| 2597 | portp->portnr = i; |
| 2598 | portp->brdnr = brdp->brdnr; |
| 2599 | portp->panelnr = panelnr; |
| 2600 | portp->baud_base = STL_BAUDBASE; |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 2601 | portp->port.close_delay = STL_CLOSEDELAY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2602 | portp->closing_wait = 30 * HZ; |
Alan Cox | b02f5ad | 2008-07-16 21:55:53 +0100 | [diff] [blame] | 2603 | init_waitqueue_head(&portp->port.open_wait); |
| 2604 | init_waitqueue_head(&portp->port.close_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2605 | init_waitqueue_head(&portp->raw_wait); |
| 2606 | panelport++; |
| 2607 | if (panelport >= brdp->panels[panelnr]) { |
| 2608 | panelport = 0; |
| 2609 | panelnr++; |
| 2610 | } |
| 2611 | brdp->ports[i] = portp; |
| 2612 | } |
| 2613 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2614 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2615 | } |
| 2616 | |
| 2617 | /*****************************************************************************/ |
| 2618 | |
| 2619 | /* |
| 2620 | * All the following routines are board specific hardware operations. |
| 2621 | */ |
| 2622 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2623 | static void stli_ecpinit(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2624 | { |
| 2625 | unsigned long memconf; |
| 2626 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2627 | outb(ECP_ATSTOP, (brdp->iobase + ECP_ATCONFR)); |
| 2628 | udelay(10); |
| 2629 | outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR)); |
| 2630 | udelay(100); |
| 2631 | |
| 2632 | memconf = (brdp->memaddr & ECP_ATADDRMASK) >> ECP_ATADDRSHFT; |
| 2633 | outb(memconf, (brdp->iobase + ECP_ATMEMAR)); |
| 2634 | } |
| 2635 | |
| 2636 | /*****************************************************************************/ |
| 2637 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2638 | static void stli_ecpenable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2639 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2640 | outb(ECP_ATENABLE, (brdp->iobase + ECP_ATCONFR)); |
| 2641 | } |
| 2642 | |
| 2643 | /*****************************************************************************/ |
| 2644 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2645 | static void stli_ecpdisable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2646 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2647 | outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR)); |
| 2648 | } |
| 2649 | |
| 2650 | /*****************************************************************************/ |
| 2651 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2652 | static void __iomem *stli_ecpgetmemptr(struct stlibrd *brdp, unsigned long offset, int line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2653 | { |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 2654 | void __iomem *ptr; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2655 | unsigned char val; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2656 | |
| 2657 | if (offset > brdp->memsize) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 2658 | printk(KERN_ERR "istallion: shared memory pointer=%x out of " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2659 | "range at line=%d(%d), brd=%d\n", |
| 2660 | (int) offset, line, __LINE__, brdp->brdnr); |
| 2661 | ptr = NULL; |
| 2662 | val = 0; |
| 2663 | } else { |
| 2664 | ptr = brdp->membase + (offset % ECP_ATPAGESIZE); |
| 2665 | val = (unsigned char) (offset / ECP_ATPAGESIZE); |
| 2666 | } |
| 2667 | outb(val, (brdp->iobase + ECP_ATMEMPR)); |
| 2668 | return(ptr); |
| 2669 | } |
| 2670 | |
| 2671 | /*****************************************************************************/ |
| 2672 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2673 | static void stli_ecpreset(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2674 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2675 | outb(ECP_ATSTOP, (brdp->iobase + ECP_ATCONFR)); |
| 2676 | udelay(10); |
| 2677 | outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR)); |
| 2678 | udelay(500); |
| 2679 | } |
| 2680 | |
| 2681 | /*****************************************************************************/ |
| 2682 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2683 | static void stli_ecpintr(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2685 | outb(0x1, brdp->iobase); |
| 2686 | } |
| 2687 | |
| 2688 | /*****************************************************************************/ |
| 2689 | |
| 2690 | /* |
| 2691 | * The following set of functions act on ECP EISA boards. |
| 2692 | */ |
| 2693 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2694 | static void stli_ecpeiinit(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2695 | { |
| 2696 | unsigned long memconf; |
| 2697 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2698 | outb(0x1, (brdp->iobase + ECP_EIBRDENAB)); |
| 2699 | outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR)); |
| 2700 | udelay(10); |
| 2701 | outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR)); |
| 2702 | udelay(500); |
| 2703 | |
| 2704 | memconf = (brdp->memaddr & ECP_EIADDRMASKL) >> ECP_EIADDRSHFTL; |
| 2705 | outb(memconf, (brdp->iobase + ECP_EIMEMARL)); |
| 2706 | memconf = (brdp->memaddr & ECP_EIADDRMASKH) >> ECP_EIADDRSHFTH; |
| 2707 | outb(memconf, (brdp->iobase + ECP_EIMEMARH)); |
| 2708 | } |
| 2709 | |
| 2710 | /*****************************************************************************/ |
| 2711 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2712 | static void stli_ecpeienable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2713 | { |
| 2714 | outb(ECP_EIENABLE, (brdp->iobase + ECP_EICONFR)); |
| 2715 | } |
| 2716 | |
| 2717 | /*****************************************************************************/ |
| 2718 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2719 | static void stli_ecpeidisable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2720 | { |
| 2721 | outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR)); |
| 2722 | } |
| 2723 | |
| 2724 | /*****************************************************************************/ |
| 2725 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2726 | static void __iomem *stli_ecpeigetmemptr(struct stlibrd *brdp, unsigned long offset, int line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2727 | { |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 2728 | void __iomem *ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2729 | unsigned char val; |
| 2730 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2731 | if (offset > brdp->memsize) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 2732 | printk(KERN_ERR "istallion: shared memory pointer=%x out of " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2733 | "range at line=%d(%d), brd=%d\n", |
| 2734 | (int) offset, line, __LINE__, brdp->brdnr); |
| 2735 | ptr = NULL; |
| 2736 | val = 0; |
| 2737 | } else { |
| 2738 | ptr = brdp->membase + (offset % ECP_EIPAGESIZE); |
| 2739 | if (offset < ECP_EIPAGESIZE) |
| 2740 | val = ECP_EIENABLE; |
| 2741 | else |
| 2742 | val = ECP_EIENABLE | 0x40; |
| 2743 | } |
| 2744 | outb(val, (brdp->iobase + ECP_EICONFR)); |
| 2745 | return(ptr); |
| 2746 | } |
| 2747 | |
| 2748 | /*****************************************************************************/ |
| 2749 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2750 | static void stli_ecpeireset(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2751 | { |
| 2752 | outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR)); |
| 2753 | udelay(10); |
| 2754 | outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR)); |
| 2755 | udelay(500); |
| 2756 | } |
| 2757 | |
| 2758 | /*****************************************************************************/ |
| 2759 | |
| 2760 | /* |
| 2761 | * The following set of functions act on ECP MCA boards. |
| 2762 | */ |
| 2763 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2764 | static void stli_ecpmcenable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2765 | { |
| 2766 | outb(ECP_MCENABLE, (brdp->iobase + ECP_MCCONFR)); |
| 2767 | } |
| 2768 | |
| 2769 | /*****************************************************************************/ |
| 2770 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2771 | static void stli_ecpmcdisable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2772 | { |
| 2773 | outb(ECP_MCDISABLE, (brdp->iobase + ECP_MCCONFR)); |
| 2774 | } |
| 2775 | |
| 2776 | /*****************************************************************************/ |
| 2777 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2778 | static void __iomem *stli_ecpmcgetmemptr(struct stlibrd *brdp, unsigned long offset, int line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2779 | { |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 2780 | void __iomem *ptr; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2781 | unsigned char val; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2782 | |
| 2783 | if (offset > brdp->memsize) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 2784 | printk(KERN_ERR "istallion: shared memory pointer=%x out of " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2785 | "range at line=%d(%d), brd=%d\n", |
| 2786 | (int) offset, line, __LINE__, brdp->brdnr); |
| 2787 | ptr = NULL; |
| 2788 | val = 0; |
| 2789 | } else { |
| 2790 | ptr = brdp->membase + (offset % ECP_MCPAGESIZE); |
| 2791 | val = ((unsigned char) (offset / ECP_MCPAGESIZE)) | ECP_MCENABLE; |
| 2792 | } |
| 2793 | outb(val, (brdp->iobase + ECP_MCCONFR)); |
| 2794 | return(ptr); |
| 2795 | } |
| 2796 | |
| 2797 | /*****************************************************************************/ |
| 2798 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2799 | static void stli_ecpmcreset(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2800 | { |
| 2801 | outb(ECP_MCSTOP, (brdp->iobase + ECP_MCCONFR)); |
| 2802 | udelay(10); |
| 2803 | outb(ECP_MCDISABLE, (brdp->iobase + ECP_MCCONFR)); |
| 2804 | udelay(500); |
| 2805 | } |
| 2806 | |
| 2807 | /*****************************************************************************/ |
| 2808 | |
| 2809 | /* |
| 2810 | * The following set of functions act on ECP PCI boards. |
| 2811 | */ |
| 2812 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2813 | static void stli_ecppciinit(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2814 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2815 | outb(ECP_PCISTOP, (brdp->iobase + ECP_PCICONFR)); |
| 2816 | udelay(10); |
| 2817 | outb(0, (brdp->iobase + ECP_PCICONFR)); |
| 2818 | udelay(500); |
| 2819 | } |
| 2820 | |
| 2821 | /*****************************************************************************/ |
| 2822 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2823 | static void __iomem *stli_ecppcigetmemptr(struct stlibrd *brdp, unsigned long offset, int line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2824 | { |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 2825 | void __iomem *ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2826 | unsigned char val; |
| 2827 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2828 | if (offset > brdp->memsize) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 2829 | printk(KERN_ERR "istallion: shared memory pointer=%x out of " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2830 | "range at line=%d(%d), board=%d\n", |
| 2831 | (int) offset, line, __LINE__, brdp->brdnr); |
| 2832 | ptr = NULL; |
| 2833 | val = 0; |
| 2834 | } else { |
| 2835 | ptr = brdp->membase + (offset % ECP_PCIPAGESIZE); |
| 2836 | val = (offset / ECP_PCIPAGESIZE) << 1; |
| 2837 | } |
| 2838 | outb(val, (brdp->iobase + ECP_PCICONFR)); |
| 2839 | return(ptr); |
| 2840 | } |
| 2841 | |
| 2842 | /*****************************************************************************/ |
| 2843 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2844 | static void stli_ecppcireset(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2845 | { |
| 2846 | outb(ECP_PCISTOP, (brdp->iobase + ECP_PCICONFR)); |
| 2847 | udelay(10); |
| 2848 | outb(0, (brdp->iobase + ECP_PCICONFR)); |
| 2849 | udelay(500); |
| 2850 | } |
| 2851 | |
| 2852 | /*****************************************************************************/ |
| 2853 | |
| 2854 | /* |
| 2855 | * The following routines act on ONboards. |
| 2856 | */ |
| 2857 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2858 | static void stli_onbinit(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2859 | { |
| 2860 | unsigned long memconf; |
| 2861 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2862 | outb(ONB_ATSTOP, (brdp->iobase + ONB_ATCONFR)); |
| 2863 | udelay(10); |
| 2864 | outb(ONB_ATDISABLE, (brdp->iobase + ONB_ATCONFR)); |
| 2865 | mdelay(1000); |
| 2866 | |
| 2867 | memconf = (brdp->memaddr & ONB_ATADDRMASK) >> ONB_ATADDRSHFT; |
| 2868 | outb(memconf, (brdp->iobase + ONB_ATMEMAR)); |
| 2869 | outb(0x1, brdp->iobase); |
| 2870 | mdelay(1); |
| 2871 | } |
| 2872 | |
| 2873 | /*****************************************************************************/ |
| 2874 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2875 | static void stli_onbenable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2876 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2877 | outb((brdp->enabval | ONB_ATENABLE), (brdp->iobase + ONB_ATCONFR)); |
| 2878 | } |
| 2879 | |
| 2880 | /*****************************************************************************/ |
| 2881 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2882 | static void stli_onbdisable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2883 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2884 | outb((brdp->enabval | ONB_ATDISABLE), (brdp->iobase + ONB_ATCONFR)); |
| 2885 | } |
| 2886 | |
| 2887 | /*****************************************************************************/ |
| 2888 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2889 | static void __iomem *stli_onbgetmemptr(struct stlibrd *brdp, unsigned long offset, int line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2890 | { |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 2891 | void __iomem *ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2892 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2893 | if (offset > brdp->memsize) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 2894 | printk(KERN_ERR "istallion: shared memory pointer=%x out of " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2895 | "range at line=%d(%d), brd=%d\n", |
| 2896 | (int) offset, line, __LINE__, brdp->brdnr); |
| 2897 | ptr = NULL; |
| 2898 | } else { |
| 2899 | ptr = brdp->membase + (offset % ONB_ATPAGESIZE); |
| 2900 | } |
| 2901 | return(ptr); |
| 2902 | } |
| 2903 | |
| 2904 | /*****************************************************************************/ |
| 2905 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2906 | static void stli_onbreset(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2907 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2908 | outb(ONB_ATSTOP, (brdp->iobase + ONB_ATCONFR)); |
| 2909 | udelay(10); |
| 2910 | outb(ONB_ATDISABLE, (brdp->iobase + ONB_ATCONFR)); |
| 2911 | mdelay(1000); |
| 2912 | } |
| 2913 | |
| 2914 | /*****************************************************************************/ |
| 2915 | |
| 2916 | /* |
| 2917 | * The following routines act on ONboard EISA. |
| 2918 | */ |
| 2919 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2920 | static void stli_onbeinit(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2921 | { |
| 2922 | unsigned long memconf; |
| 2923 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2924 | outb(0x1, (brdp->iobase + ONB_EIBRDENAB)); |
| 2925 | outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR)); |
| 2926 | udelay(10); |
| 2927 | outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR)); |
| 2928 | mdelay(1000); |
| 2929 | |
| 2930 | memconf = (brdp->memaddr & ONB_EIADDRMASKL) >> ONB_EIADDRSHFTL; |
| 2931 | outb(memconf, (brdp->iobase + ONB_EIMEMARL)); |
| 2932 | memconf = (brdp->memaddr & ONB_EIADDRMASKH) >> ONB_EIADDRSHFTH; |
| 2933 | outb(memconf, (brdp->iobase + ONB_EIMEMARH)); |
| 2934 | outb(0x1, brdp->iobase); |
| 2935 | mdelay(1); |
| 2936 | } |
| 2937 | |
| 2938 | /*****************************************************************************/ |
| 2939 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2940 | static void stli_onbeenable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2941 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2942 | outb(ONB_EIENABLE, (brdp->iobase + ONB_EICONFR)); |
| 2943 | } |
| 2944 | |
| 2945 | /*****************************************************************************/ |
| 2946 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2947 | static void stli_onbedisable(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2948 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2949 | outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR)); |
| 2950 | } |
| 2951 | |
| 2952 | /*****************************************************************************/ |
| 2953 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2954 | static void __iomem *stli_onbegetmemptr(struct stlibrd *brdp, unsigned long offset, int line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2955 | { |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 2956 | void __iomem *ptr; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 2957 | unsigned char val; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2958 | |
| 2959 | if (offset > brdp->memsize) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 2960 | printk(KERN_ERR "istallion: shared memory pointer=%x out of " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2961 | "range at line=%d(%d), brd=%d\n", |
| 2962 | (int) offset, line, __LINE__, brdp->brdnr); |
| 2963 | ptr = NULL; |
| 2964 | val = 0; |
| 2965 | } else { |
| 2966 | ptr = brdp->membase + (offset % ONB_EIPAGESIZE); |
| 2967 | if (offset < ONB_EIPAGESIZE) |
| 2968 | val = ONB_EIENABLE; |
| 2969 | else |
| 2970 | val = ONB_EIENABLE | 0x40; |
| 2971 | } |
| 2972 | outb(val, (brdp->iobase + ONB_EICONFR)); |
| 2973 | return(ptr); |
| 2974 | } |
| 2975 | |
| 2976 | /*****************************************************************************/ |
| 2977 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2978 | static void stli_onbereset(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2979 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2980 | outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR)); |
| 2981 | udelay(10); |
| 2982 | outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR)); |
| 2983 | mdelay(1000); |
| 2984 | } |
| 2985 | |
| 2986 | /*****************************************************************************/ |
| 2987 | |
| 2988 | /* |
| 2989 | * The following routines act on Brumby boards. |
| 2990 | */ |
| 2991 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 2992 | static void stli_bbyinit(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2993 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2994 | outb(BBY_ATSTOP, (brdp->iobase + BBY_ATCONFR)); |
| 2995 | udelay(10); |
| 2996 | outb(0, (brdp->iobase + BBY_ATCONFR)); |
| 2997 | mdelay(1000); |
| 2998 | outb(0x1, brdp->iobase); |
| 2999 | mdelay(1); |
| 3000 | } |
| 3001 | |
| 3002 | /*****************************************************************************/ |
| 3003 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3004 | static void __iomem *stli_bbygetmemptr(struct stlibrd *brdp, unsigned long offset, int line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3005 | { |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 3006 | void __iomem *ptr; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3007 | unsigned char val; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3008 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3009 | BUG_ON(offset > brdp->memsize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3010 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3011 | ptr = brdp->membase + (offset % BBY_PAGESIZE); |
| 3012 | val = (unsigned char) (offset / BBY_PAGESIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3013 | outb(val, (brdp->iobase + BBY_ATCONFR)); |
| 3014 | return(ptr); |
| 3015 | } |
| 3016 | |
| 3017 | /*****************************************************************************/ |
| 3018 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3019 | static void stli_bbyreset(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3020 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3021 | outb(BBY_ATSTOP, (brdp->iobase + BBY_ATCONFR)); |
| 3022 | udelay(10); |
| 3023 | outb(0, (brdp->iobase + BBY_ATCONFR)); |
| 3024 | mdelay(1000); |
| 3025 | } |
| 3026 | |
| 3027 | /*****************************************************************************/ |
| 3028 | |
| 3029 | /* |
| 3030 | * The following routines act on original old Stallion boards. |
| 3031 | */ |
| 3032 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3033 | static void stli_stalinit(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3034 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3035 | outb(0x1, brdp->iobase); |
| 3036 | mdelay(1000); |
| 3037 | } |
| 3038 | |
| 3039 | /*****************************************************************************/ |
| 3040 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3041 | static void __iomem *stli_stalgetmemptr(struct stlibrd *brdp, unsigned long offset, int line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3042 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3043 | BUG_ON(offset > brdp->memsize); |
| 3044 | return brdp->membase + (offset % STAL_PAGESIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3045 | } |
| 3046 | |
| 3047 | /*****************************************************************************/ |
| 3048 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3049 | static void stli_stalreset(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3050 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3051 | u32 __iomem *vecp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3052 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3053 | vecp = (u32 __iomem *) (brdp->membase + 0x30); |
| 3054 | writel(0xffff0000, vecp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3055 | outb(0, brdp->iobase); |
| 3056 | mdelay(1000); |
| 3057 | } |
| 3058 | |
| 3059 | /*****************************************************************************/ |
| 3060 | |
| 3061 | /* |
| 3062 | * Try to find an ECP board and initialize it. This handles only ECP |
| 3063 | * board types. |
| 3064 | */ |
| 3065 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3066 | static int stli_initecp(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3067 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3068 | cdkecpsig_t sig; |
| 3069 | cdkecpsig_t __iomem *sigsp; |
| 3070 | unsigned int status, nxtid; |
| 3071 | char *name; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3072 | int retval, panelnr, nrports; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3073 | |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3074 | if ((brdp->iobase == 0) || (brdp->memaddr == 0)) { |
| 3075 | retval = -ENODEV; |
| 3076 | goto err; |
| 3077 | } |
| 3078 | |
Ingo Korb | b306122 | 2007-07-17 04:05:23 -0700 | [diff] [blame] | 3079 | brdp->iosize = ECP_IOSIZE; |
| 3080 | |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3081 | if (!request_region(brdp->iobase, brdp->iosize, "istallion")) { |
| 3082 | retval = -EIO; |
| 3083 | goto err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3084 | } |
| 3085 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3086 | /* |
| 3087 | * Based on the specific board type setup the common vars to access |
| 3088 | * and enable shared memory. Set all board specific information now |
| 3089 | * as well. |
| 3090 | */ |
| 3091 | switch (brdp->brdtype) { |
| 3092 | case BRD_ECP: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3093 | brdp->memsize = ECP_MEMSIZE; |
| 3094 | brdp->pagesize = ECP_ATPAGESIZE; |
| 3095 | brdp->init = stli_ecpinit; |
| 3096 | brdp->enable = stli_ecpenable; |
| 3097 | brdp->reenable = stli_ecpenable; |
| 3098 | brdp->disable = stli_ecpdisable; |
| 3099 | brdp->getmemptr = stli_ecpgetmemptr; |
| 3100 | brdp->intr = stli_ecpintr; |
| 3101 | brdp->reset = stli_ecpreset; |
| 3102 | name = "serial(EC8/64)"; |
| 3103 | break; |
| 3104 | |
| 3105 | case BRD_ECPE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3106 | brdp->memsize = ECP_MEMSIZE; |
| 3107 | brdp->pagesize = ECP_EIPAGESIZE; |
| 3108 | brdp->init = stli_ecpeiinit; |
| 3109 | brdp->enable = stli_ecpeienable; |
| 3110 | brdp->reenable = stli_ecpeienable; |
| 3111 | brdp->disable = stli_ecpeidisable; |
| 3112 | brdp->getmemptr = stli_ecpeigetmemptr; |
| 3113 | brdp->intr = stli_ecpintr; |
| 3114 | brdp->reset = stli_ecpeireset; |
| 3115 | name = "serial(EC8/64-EI)"; |
| 3116 | break; |
| 3117 | |
| 3118 | case BRD_ECPMC: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3119 | brdp->memsize = ECP_MEMSIZE; |
| 3120 | brdp->pagesize = ECP_MCPAGESIZE; |
| 3121 | brdp->init = NULL; |
| 3122 | brdp->enable = stli_ecpmcenable; |
| 3123 | brdp->reenable = stli_ecpmcenable; |
| 3124 | brdp->disable = stli_ecpmcdisable; |
| 3125 | brdp->getmemptr = stli_ecpmcgetmemptr; |
| 3126 | brdp->intr = stli_ecpintr; |
| 3127 | brdp->reset = stli_ecpmcreset; |
| 3128 | name = "serial(EC8/64-MCA)"; |
| 3129 | break; |
| 3130 | |
| 3131 | case BRD_ECPPCI: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3132 | brdp->memsize = ECP_PCIMEMSIZE; |
| 3133 | brdp->pagesize = ECP_PCIPAGESIZE; |
| 3134 | brdp->init = stli_ecppciinit; |
| 3135 | brdp->enable = NULL; |
| 3136 | brdp->reenable = NULL; |
| 3137 | brdp->disable = NULL; |
| 3138 | brdp->getmemptr = stli_ecppcigetmemptr; |
| 3139 | brdp->intr = stli_ecpintr; |
| 3140 | brdp->reset = stli_ecppcireset; |
| 3141 | name = "serial(EC/RA-PCI)"; |
| 3142 | break; |
| 3143 | |
| 3144 | default: |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3145 | retval = -EINVAL; |
| 3146 | goto err_reg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3147 | } |
| 3148 | |
| 3149 | /* |
| 3150 | * The per-board operations structure is all set up, so now let's go |
| 3151 | * and get the board operational. Firstly initialize board configuration |
| 3152 | * registers. Set the memory mapping info so we can get at the boards |
| 3153 | * shared memory. |
| 3154 | */ |
| 3155 | EBRDINIT(brdp); |
| 3156 | |
Alan Cox | 24cb233 | 2008-04-30 00:54:19 -0700 | [diff] [blame] | 3157 | brdp->membase = ioremap_nocache(brdp->memaddr, brdp->memsize); |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3158 | if (brdp->membase == NULL) { |
| 3159 | retval = -ENOMEM; |
| 3160 | goto err_reg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3161 | } |
| 3162 | |
| 3163 | /* |
| 3164 | * Now that all specific code is set up, enable the shared memory and |
| 3165 | * look for the a signature area that will tell us exactly what board |
| 3166 | * this is, and what it is connected to it. |
| 3167 | */ |
| 3168 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3169 | sigsp = (cdkecpsig_t __iomem *) EBRDGETMEMPTR(brdp, CDK_SIGADDR); |
Al Viro | 634965f | 2006-09-23 01:20:31 +0100 | [diff] [blame] | 3170 | memcpy_fromio(&sig, sigsp, sizeof(cdkecpsig_t)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3171 | EBRDDISABLE(brdp); |
| 3172 | |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3173 | if (sig.magic != cpu_to_le32(ECP_MAGIC)) { |
| 3174 | retval = -ENODEV; |
| 3175 | goto err_unmap; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3176 | } |
| 3177 | |
| 3178 | /* |
| 3179 | * Scan through the signature looking at the panels connected to the |
| 3180 | * board. Calculate the total number of ports as we go. |
| 3181 | */ |
| 3182 | for (panelnr = 0, nxtid = 0; (panelnr < STL_MAXPANELS); panelnr++) { |
| 3183 | status = sig.panelid[nxtid]; |
| 3184 | if ((status & ECH_PNLIDMASK) != nxtid) |
| 3185 | break; |
| 3186 | |
| 3187 | brdp->panelids[panelnr] = status; |
| 3188 | nrports = (status & ECH_PNL16PORT) ? 16 : 8; |
| 3189 | if ((nrports == 16) && ((status & ECH_PNLXPID) == 0)) |
| 3190 | nxtid++; |
| 3191 | brdp->panels[panelnr] = nrports; |
| 3192 | brdp->nrports += nrports; |
| 3193 | nxtid++; |
| 3194 | brdp->nrpanels++; |
| 3195 | } |
| 3196 | |
| 3197 | |
| 3198 | brdp->state |= BST_FOUND; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3199 | return 0; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3200 | err_unmap: |
| 3201 | iounmap(brdp->membase); |
| 3202 | brdp->membase = NULL; |
| 3203 | err_reg: |
| 3204 | release_region(brdp->iobase, brdp->iosize); |
| 3205 | err: |
| 3206 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3207 | } |
| 3208 | |
| 3209 | /*****************************************************************************/ |
| 3210 | |
| 3211 | /* |
| 3212 | * Try to find an ONboard, Brumby or Stallion board and initialize it. |
| 3213 | * This handles only these board types. |
| 3214 | */ |
| 3215 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3216 | static int stli_initonb(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3217 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3218 | cdkonbsig_t sig; |
| 3219 | cdkonbsig_t __iomem *sigsp; |
| 3220 | char *name; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3221 | int i, retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3222 | |
| 3223 | /* |
| 3224 | * Do a basic sanity check on the IO and memory addresses. |
| 3225 | */ |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3226 | if (brdp->iobase == 0 || brdp->memaddr == 0) { |
| 3227 | retval = -ENODEV; |
| 3228 | goto err; |
| 3229 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3230 | |
| 3231 | brdp->iosize = ONB_IOSIZE; |
| 3232 | |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3233 | if (!request_region(brdp->iobase, brdp->iosize, "istallion")) { |
| 3234 | retval = -EIO; |
| 3235 | goto err; |
| 3236 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3237 | |
| 3238 | /* |
| 3239 | * Based on the specific board type setup the common vars to access |
| 3240 | * and enable shared memory. Set all board specific information now |
| 3241 | * as well. |
| 3242 | */ |
| 3243 | switch (brdp->brdtype) { |
| 3244 | case BRD_ONBOARD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3245 | case BRD_ONBOARD2: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3246 | brdp->memsize = ONB_MEMSIZE; |
| 3247 | brdp->pagesize = ONB_ATPAGESIZE; |
| 3248 | brdp->init = stli_onbinit; |
| 3249 | brdp->enable = stli_onbenable; |
| 3250 | brdp->reenable = stli_onbenable; |
| 3251 | brdp->disable = stli_onbdisable; |
| 3252 | brdp->getmemptr = stli_onbgetmemptr; |
| 3253 | brdp->intr = stli_ecpintr; |
| 3254 | brdp->reset = stli_onbreset; |
| 3255 | if (brdp->memaddr > 0x100000) |
| 3256 | brdp->enabval = ONB_MEMENABHI; |
| 3257 | else |
| 3258 | brdp->enabval = ONB_MEMENABLO; |
| 3259 | name = "serial(ONBoard)"; |
| 3260 | break; |
| 3261 | |
| 3262 | case BRD_ONBOARDE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3263 | brdp->memsize = ONB_EIMEMSIZE; |
| 3264 | brdp->pagesize = ONB_EIPAGESIZE; |
| 3265 | brdp->init = stli_onbeinit; |
| 3266 | brdp->enable = stli_onbeenable; |
| 3267 | brdp->reenable = stli_onbeenable; |
| 3268 | brdp->disable = stli_onbedisable; |
| 3269 | brdp->getmemptr = stli_onbegetmemptr; |
| 3270 | brdp->intr = stli_ecpintr; |
| 3271 | brdp->reset = stli_onbereset; |
| 3272 | name = "serial(ONBoard/E)"; |
| 3273 | break; |
| 3274 | |
| 3275 | case BRD_BRUMBY4: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3276 | brdp->memsize = BBY_MEMSIZE; |
| 3277 | brdp->pagesize = BBY_PAGESIZE; |
| 3278 | brdp->init = stli_bbyinit; |
| 3279 | brdp->enable = NULL; |
| 3280 | brdp->reenable = NULL; |
| 3281 | brdp->disable = NULL; |
| 3282 | brdp->getmemptr = stli_bbygetmemptr; |
| 3283 | brdp->intr = stli_ecpintr; |
| 3284 | brdp->reset = stli_bbyreset; |
| 3285 | name = "serial(Brumby)"; |
| 3286 | break; |
| 3287 | |
| 3288 | case BRD_STALLION: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3289 | brdp->memsize = STAL_MEMSIZE; |
| 3290 | brdp->pagesize = STAL_PAGESIZE; |
| 3291 | brdp->init = stli_stalinit; |
| 3292 | brdp->enable = NULL; |
| 3293 | brdp->reenable = NULL; |
| 3294 | brdp->disable = NULL; |
| 3295 | brdp->getmemptr = stli_stalgetmemptr; |
| 3296 | brdp->intr = stli_ecpintr; |
| 3297 | brdp->reset = stli_stalreset; |
| 3298 | name = "serial(Stallion)"; |
| 3299 | break; |
| 3300 | |
| 3301 | default: |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3302 | retval = -EINVAL; |
| 3303 | goto err_reg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3304 | } |
| 3305 | |
| 3306 | /* |
| 3307 | * The per-board operations structure is all set up, so now let's go |
| 3308 | * and get the board operational. Firstly initialize board configuration |
| 3309 | * registers. Set the memory mapping info so we can get at the boards |
| 3310 | * shared memory. |
| 3311 | */ |
| 3312 | EBRDINIT(brdp); |
| 3313 | |
Alan Cox | 24cb233 | 2008-04-30 00:54:19 -0700 | [diff] [blame] | 3314 | brdp->membase = ioremap_nocache(brdp->memaddr, brdp->memsize); |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3315 | if (brdp->membase == NULL) { |
| 3316 | retval = -ENOMEM; |
| 3317 | goto err_reg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3318 | } |
| 3319 | |
| 3320 | /* |
| 3321 | * Now that all specific code is set up, enable the shared memory and |
| 3322 | * look for the a signature area that will tell us exactly what board |
| 3323 | * this is, and how many ports. |
| 3324 | */ |
| 3325 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3326 | sigsp = (cdkonbsig_t __iomem *) EBRDGETMEMPTR(brdp, CDK_SIGADDR); |
| 3327 | memcpy_fromio(&sig, sigsp, sizeof(cdkonbsig_t)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3328 | EBRDDISABLE(brdp); |
| 3329 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3330 | if (sig.magic0 != cpu_to_le16(ONB_MAGIC0) || |
| 3331 | sig.magic1 != cpu_to_le16(ONB_MAGIC1) || |
| 3332 | sig.magic2 != cpu_to_le16(ONB_MAGIC2) || |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3333 | sig.magic3 != cpu_to_le16(ONB_MAGIC3)) { |
| 3334 | retval = -ENODEV; |
| 3335 | goto err_unmap; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3336 | } |
| 3337 | |
| 3338 | /* |
| 3339 | * Scan through the signature alive mask and calculate how many ports |
| 3340 | * there are on this board. |
| 3341 | */ |
| 3342 | brdp->nrpanels = 1; |
| 3343 | if (sig.amask1) { |
| 3344 | brdp->nrports = 32; |
| 3345 | } else { |
| 3346 | for (i = 0; (i < 16); i++) { |
| 3347 | if (((sig.amask0 << i) & 0x8000) == 0) |
| 3348 | break; |
| 3349 | } |
| 3350 | brdp->nrports = i; |
| 3351 | } |
| 3352 | brdp->panels[0] = brdp->nrports; |
| 3353 | |
| 3354 | |
| 3355 | brdp->state |= BST_FOUND; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3356 | return 0; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3357 | err_unmap: |
| 3358 | iounmap(brdp->membase); |
| 3359 | brdp->membase = NULL; |
| 3360 | err_reg: |
| 3361 | release_region(brdp->iobase, brdp->iosize); |
| 3362 | err: |
| 3363 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3364 | } |
| 3365 | |
| 3366 | /*****************************************************************************/ |
| 3367 | |
| 3368 | /* |
| 3369 | * Start up a running board. This routine is only called after the |
| 3370 | * code has been down loaded to the board and is operational. It will |
| 3371 | * read in the memory map, and get the show on the road... |
| 3372 | */ |
| 3373 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3374 | static int stli_startbrd(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3375 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3376 | cdkhdr_t __iomem *hdrp; |
| 3377 | cdkmem_t __iomem *memp; |
| 3378 | cdkasy_t __iomem *ap; |
| 3379 | unsigned long flags; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3380 | unsigned int portnr, nrdevs, i; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3381 | struct stliport *portp; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3382 | int rc = 0; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3383 | u32 memoff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3384 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3385 | spin_lock_irqsave(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3386 | EBRDENABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3387 | hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3388 | nrdevs = hdrp->nrdevs; |
| 3389 | |
| 3390 | #if 0 |
| 3391 | printk("%s(%d): CDK version %d.%d.%d --> " |
| 3392 | "nrdevs=%d memp=%x hostp=%x slavep=%x\n", |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3393 | __FILE__, __LINE__, readb(&hdrp->ver_release), readb(&hdrp->ver_modification), |
| 3394 | readb(&hdrp->ver_fix), nrdevs, (int) readl(&hdrp->memp), readl(&hdrp->hostp), |
| 3395 | readl(&hdrp->slavep)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3396 | #endif |
| 3397 | |
| 3398 | if (nrdevs < (brdp->nrports + 1)) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 3399 | printk(KERN_ERR "istallion: slave failed to allocate memory for " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3400 | "all devices, devices=%d\n", nrdevs); |
| 3401 | brdp->nrports = nrdevs - 1; |
| 3402 | } |
| 3403 | brdp->nrdevs = nrdevs; |
| 3404 | brdp->hostoffset = hdrp->hostp - CDK_CDKADDR; |
| 3405 | brdp->slaveoffset = hdrp->slavep - CDK_CDKADDR; |
| 3406 | brdp->bitsize = (nrdevs + 7) / 8; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3407 | memoff = readl(&hdrp->memp); |
| 3408 | if (memoff > brdp->memsize) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 3409 | printk(KERN_ERR "istallion: corrupted shared memory region?\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3410 | rc = -EIO; |
| 3411 | goto stli_donestartup; |
| 3412 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3413 | memp = (cdkmem_t __iomem *) EBRDGETMEMPTR(brdp, memoff); |
| 3414 | if (readw(&memp->dtype) != TYP_ASYNCTRL) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 3415 | printk(KERN_ERR "istallion: no slave control device found\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3416 | goto stli_donestartup; |
| 3417 | } |
| 3418 | memp++; |
| 3419 | |
| 3420 | /* |
| 3421 | * Cycle through memory allocation of each port. We are guaranteed to |
| 3422 | * have all ports inside the first page of slave window, so no need to |
| 3423 | * change pages while reading memory map. |
| 3424 | */ |
| 3425 | for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++, memp++) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3426 | if (readw(&memp->dtype) != TYP_ASYNC) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3427 | break; |
| 3428 | portp = brdp->ports[portnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3429 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3430 | break; |
| 3431 | portp->devnr = i; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3432 | portp->addr = readl(&memp->offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3433 | portp->reqbit = (unsigned char) (0x1 << (i * 8 / nrdevs)); |
| 3434 | portp->portidx = (unsigned char) (i / 8); |
| 3435 | portp->portbit = (unsigned char) (0x1 << (i % 8)); |
| 3436 | } |
| 3437 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3438 | writeb(0xff, &hdrp->slavereq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3439 | |
| 3440 | /* |
| 3441 | * For each port setup a local copy of the RX and TX buffer offsets |
| 3442 | * and sizes. We do this separate from the above, because we need to |
| 3443 | * move the shared memory page... |
| 3444 | */ |
| 3445 | for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++) { |
| 3446 | portp = brdp->ports[portnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3447 | if (portp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3448 | break; |
| 3449 | if (portp->addr == 0) |
| 3450 | break; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3451 | ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr); |
| 3452 | if (ap != NULL) { |
| 3453 | portp->rxsize = readw(&ap->rxq.size); |
| 3454 | portp->txsize = readw(&ap->txq.size); |
| 3455 | portp->rxoffset = readl(&ap->rxq.offset); |
| 3456 | portp->txoffset = readl(&ap->txq.offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3457 | } |
| 3458 | } |
| 3459 | |
| 3460 | stli_donestartup: |
| 3461 | EBRDDISABLE(brdp); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3462 | spin_unlock_irqrestore(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3463 | |
| 3464 | if (rc == 0) |
| 3465 | brdp->state |= BST_STARTED; |
| 3466 | |
| 3467 | if (! stli_timeron) { |
| 3468 | stli_timeron++; |
Jiri Slaby | ff8efe9 | 2006-12-08 02:39:27 -0800 | [diff] [blame] | 3469 | mod_timer(&stli_timerlist, STLI_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3470 | } |
| 3471 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3472 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3473 | } |
| 3474 | |
| 3475 | /*****************************************************************************/ |
| 3476 | |
| 3477 | /* |
| 3478 | * Probe and initialize the specified board. |
| 3479 | */ |
| 3480 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3481 | static int __devinit stli_brdinit(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3482 | { |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3483 | int retval; |
| 3484 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3485 | switch (brdp->brdtype) { |
| 3486 | case BRD_ECP: |
| 3487 | case BRD_ECPE: |
| 3488 | case BRD_ECPMC: |
| 3489 | case BRD_ECPPCI: |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3490 | retval = stli_initecp(brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3491 | break; |
| 3492 | case BRD_ONBOARD: |
| 3493 | case BRD_ONBOARDE: |
| 3494 | case BRD_ONBOARD2: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3495 | case BRD_BRUMBY4: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3496 | case BRD_STALLION: |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3497 | retval = stli_initonb(brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3498 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3499 | default: |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 3500 | printk(KERN_ERR "istallion: board=%d is unknown board " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3501 | "type=%d\n", brdp->brdnr, brdp->brdtype); |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3502 | retval = -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3503 | } |
| 3504 | |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3505 | if (retval) |
| 3506 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3507 | |
| 3508 | stli_initports(brdp); |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 3509 | printk(KERN_INFO "istallion: %s found, board=%d io=%x mem=%x " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3510 | "nrpanels=%d nrports=%d\n", stli_brdnames[brdp->brdtype], |
| 3511 | brdp->brdnr, brdp->iobase, (int) brdp->memaddr, |
| 3512 | brdp->nrpanels, brdp->nrports); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3513 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3514 | } |
| 3515 | |
Jiri Slaby | a00f33f | 2006-12-08 02:39:20 -0800 | [diff] [blame] | 3516 | #if STLI_EISAPROBE != 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3517 | /*****************************************************************************/ |
| 3518 | |
| 3519 | /* |
| 3520 | * Probe around trying to find where the EISA boards shared memory |
| 3521 | * might be. This is a bit if hack, but it is the best we can do. |
| 3522 | */ |
| 3523 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3524 | static int stli_eisamemprobe(struct stlibrd *brdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3525 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3526 | cdkecpsig_t ecpsig, __iomem *ecpsigp; |
| 3527 | cdkonbsig_t onbsig, __iomem *onbsigp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3528 | int i, foundit; |
| 3529 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3530 | /* |
| 3531 | * First up we reset the board, to get it into a known state. There |
| 3532 | * is only 2 board types here we need to worry about. Don;t use the |
| 3533 | * standard board init routine here, it programs up the shared |
| 3534 | * memory address, and we don't know it yet... |
| 3535 | */ |
| 3536 | if (brdp->brdtype == BRD_ECPE) { |
| 3537 | outb(0x1, (brdp->iobase + ECP_EIBRDENAB)); |
| 3538 | outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR)); |
| 3539 | udelay(10); |
| 3540 | outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR)); |
| 3541 | udelay(500); |
| 3542 | stli_ecpeienable(brdp); |
| 3543 | } else if (brdp->brdtype == BRD_ONBOARDE) { |
| 3544 | outb(0x1, (brdp->iobase + ONB_EIBRDENAB)); |
| 3545 | outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR)); |
| 3546 | udelay(10); |
| 3547 | outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR)); |
| 3548 | mdelay(100); |
| 3549 | outb(0x1, brdp->iobase); |
| 3550 | mdelay(1); |
| 3551 | stli_onbeenable(brdp); |
| 3552 | } else { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3553 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3554 | } |
| 3555 | |
| 3556 | foundit = 0; |
| 3557 | brdp->memsize = ECP_MEMSIZE; |
| 3558 | |
| 3559 | /* |
| 3560 | * Board shared memory is enabled, so now we have a poke around and |
| 3561 | * see if we can find it. |
| 3562 | */ |
| 3563 | for (i = 0; (i < stli_eisamempsize); i++) { |
| 3564 | brdp->memaddr = stli_eisamemprobeaddrs[i]; |
Alan Cox | 24cb233 | 2008-04-30 00:54:19 -0700 | [diff] [blame] | 3565 | brdp->membase = ioremap_nocache(brdp->memaddr, brdp->memsize); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3566 | if (brdp->membase == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3567 | continue; |
| 3568 | |
| 3569 | if (brdp->brdtype == BRD_ECPE) { |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 3570 | ecpsigp = stli_ecpeigetmemptr(brdp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3571 | CDK_SIGADDR, __LINE__); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3572 | memcpy_fromio(&ecpsig, ecpsigp, sizeof(cdkecpsig_t)); |
| 3573 | if (ecpsig.magic == cpu_to_le32(ECP_MAGIC)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3574 | foundit = 1; |
| 3575 | } else { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3576 | onbsigp = (cdkonbsig_t __iomem *) stli_onbegetmemptr(brdp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3577 | CDK_SIGADDR, __LINE__); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3578 | memcpy_fromio(&onbsig, onbsigp, sizeof(cdkonbsig_t)); |
| 3579 | if ((onbsig.magic0 == cpu_to_le16(ONB_MAGIC0)) && |
| 3580 | (onbsig.magic1 == cpu_to_le16(ONB_MAGIC1)) && |
| 3581 | (onbsig.magic2 == cpu_to_le16(ONB_MAGIC2)) && |
| 3582 | (onbsig.magic3 == cpu_to_le16(ONB_MAGIC3))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3583 | foundit = 1; |
| 3584 | } |
| 3585 | |
| 3586 | iounmap(brdp->membase); |
| 3587 | if (foundit) |
| 3588 | break; |
| 3589 | } |
| 3590 | |
| 3591 | /* |
| 3592 | * Regardless of whether we found the shared memory or not we must |
| 3593 | * disable the region. After that return success or failure. |
| 3594 | */ |
| 3595 | if (brdp->brdtype == BRD_ECPE) |
| 3596 | stli_ecpeidisable(brdp); |
| 3597 | else |
| 3598 | stli_onbedisable(brdp); |
| 3599 | |
| 3600 | if (! foundit) { |
| 3601 | brdp->memaddr = 0; |
| 3602 | brdp->membase = NULL; |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 3603 | printk(KERN_ERR "istallion: failed to probe shared memory " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3604 | "region for %s in EISA slot=%d\n", |
| 3605 | stli_brdnames[brdp->brdtype], (brdp->iobase >> 12)); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3606 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3607 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3608 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3609 | } |
Jiri Slaby | a00f33f | 2006-12-08 02:39:20 -0800 | [diff] [blame] | 3610 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3611 | |
| 3612 | static int stli_getbrdnr(void) |
| 3613 | { |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3614 | unsigned int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3615 | |
| 3616 | for (i = 0; i < STL_MAXBRDS; i++) { |
| 3617 | if (!stli_brds[i]) { |
| 3618 | if (i >= stli_nrbrds) |
| 3619 | stli_nrbrds = i + 1; |
| 3620 | return i; |
| 3621 | } |
| 3622 | } |
| 3623 | return -1; |
| 3624 | } |
| 3625 | |
Jiri Slaby | a00f33f | 2006-12-08 02:39:20 -0800 | [diff] [blame] | 3626 | #if STLI_EISAPROBE != 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3627 | /*****************************************************************************/ |
| 3628 | |
| 3629 | /* |
| 3630 | * Probe around and try to find any EISA boards in system. The biggest |
| 3631 | * problem here is finding out what memory address is associated with |
| 3632 | * an EISA board after it is found. The registers of the ECPE and |
| 3633 | * ONboardE are not readable - so we can't read them from there. We |
| 3634 | * don't have access to the EISA CMOS (or EISA BIOS) so we don't |
| 3635 | * actually have any way to find out the real value. The best we can |
| 3636 | * do is go probing around in the usual places hoping we can find it. |
| 3637 | */ |
| 3638 | |
Al Viro | 6005e3e | 2008-11-22 17:34:14 +0000 | [diff] [blame] | 3639 | static int __init stli_findeisabrds(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3640 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3641 | struct stlibrd *brdp; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3642 | unsigned int iobase, eid, i; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3643 | int brdnr, found = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3644 | |
| 3645 | /* |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3646 | * Firstly check if this is an EISA system. If this is not an EISA system then |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3647 | * don't bother going any further! |
| 3648 | */ |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3649 | if (EISA_bus) |
| 3650 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3651 | |
| 3652 | /* |
| 3653 | * Looks like an EISA system, so go searching for EISA boards. |
| 3654 | */ |
| 3655 | for (iobase = 0x1000; (iobase <= 0xc000); iobase += 0x1000) { |
| 3656 | outb(0xff, (iobase + 0xc80)); |
| 3657 | eid = inb(iobase + 0xc80); |
| 3658 | eid |= inb(iobase + 0xc81) << 8; |
| 3659 | if (eid != STL_EISAID) |
| 3660 | continue; |
| 3661 | |
| 3662 | /* |
| 3663 | * We have found a board. Need to check if this board was |
| 3664 | * statically configured already (just in case!). |
| 3665 | */ |
| 3666 | for (i = 0; (i < STL_MAXBRDS); i++) { |
| 3667 | brdp = stli_brds[i]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3668 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3669 | continue; |
| 3670 | if (brdp->iobase == iobase) |
| 3671 | break; |
| 3672 | } |
| 3673 | if (i < STL_MAXBRDS) |
| 3674 | continue; |
| 3675 | |
| 3676 | /* |
| 3677 | * We have found a Stallion board and it is not configured already. |
| 3678 | * Allocate a board structure and initialize it. |
| 3679 | */ |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3680 | if ((brdp = stli_allocbrd()) == NULL) |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3681 | return found ? : -ENOMEM; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3682 | brdnr = stli_getbrdnr(); |
| 3683 | if (brdnr < 0) |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3684 | return found ? : -ENOMEM; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3685 | brdp->brdnr = (unsigned int)brdnr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3686 | eid = inb(iobase + 0xc82); |
| 3687 | if (eid == ECP_EISAID) |
| 3688 | brdp->brdtype = BRD_ECPE; |
| 3689 | else if (eid == ONB_EISAID) |
| 3690 | brdp->brdtype = BRD_ONBOARDE; |
| 3691 | else |
| 3692 | brdp->brdtype = BRD_UNKNOWN; |
| 3693 | brdp->iobase = iobase; |
| 3694 | outb(0x1, (iobase + 0xc84)); |
| 3695 | if (stli_eisamemprobe(brdp)) |
| 3696 | outb(0, (iobase + 0xc84)); |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3697 | if (stli_brdinit(brdp) < 0) { |
| 3698 | kfree(brdp); |
| 3699 | continue; |
| 3700 | } |
| 3701 | |
Jiri Slaby | b103b5c | 2006-12-08 02:39:21 -0800 | [diff] [blame] | 3702 | stli_brds[brdp->brdnr] = brdp; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3703 | found++; |
Jiri Slaby | ec3dde5 | 2006-12-08 02:39:26 -0800 | [diff] [blame] | 3704 | |
| 3705 | for (i = 0; i < brdp->nrports; i++) |
| 3706 | tty_register_device(stli_serial, |
| 3707 | brdp->brdnr * STL_MAXPORTS + i, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3708 | } |
| 3709 | |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3710 | return found; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3711 | } |
Jiri Slaby | a00f33f | 2006-12-08 02:39:20 -0800 | [diff] [blame] | 3712 | #else |
| 3713 | static inline int stli_findeisabrds(void) { return 0; } |
| 3714 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3715 | |
| 3716 | /*****************************************************************************/ |
| 3717 | |
| 3718 | /* |
| 3719 | * Find the next available board number that is free. |
| 3720 | */ |
| 3721 | |
| 3722 | /*****************************************************************************/ |
| 3723 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3724 | /* |
| 3725 | * We have a Stallion board. Allocate a board structure and |
| 3726 | * initialize it. Read its IO and MEMORY resources from PCI |
| 3727 | * configuration space. |
| 3728 | */ |
| 3729 | |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3730 | static int __devinit stli_pciprobe(struct pci_dev *pdev, |
| 3731 | const struct pci_device_id *ent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3732 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3733 | struct stlibrd *brdp; |
Jiri Slaby | ec3dde5 | 2006-12-08 02:39:26 -0800 | [diff] [blame] | 3734 | unsigned int i; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3735 | int brdnr, retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3736 | |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3737 | retval = pci_enable_device(pdev); |
| 3738 | if (retval) |
| 3739 | goto err; |
| 3740 | brdp = stli_allocbrd(); |
| 3741 | if (brdp == NULL) { |
| 3742 | retval = -ENOMEM; |
| 3743 | goto err; |
| 3744 | } |
Jiri Slaby | b103b5c | 2006-12-08 02:39:21 -0800 | [diff] [blame] | 3745 | mutex_lock(&stli_brdslock); |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3746 | brdnr = stli_getbrdnr(); |
Jiri Slaby | b103b5c | 2006-12-08 02:39:21 -0800 | [diff] [blame] | 3747 | if (brdnr < 0) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 3748 | printk(KERN_INFO "istallion: too many boards found, " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3749 | "maximum supported %d\n", STL_MAXBRDS); |
Jiri Slaby | b103b5c | 2006-12-08 02:39:21 -0800 | [diff] [blame] | 3750 | mutex_unlock(&stli_brdslock); |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3751 | retval = -EIO; |
| 3752 | goto err_fr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3753 | } |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3754 | brdp->brdnr = (unsigned int)brdnr; |
Jiri Slaby | b103b5c | 2006-12-08 02:39:21 -0800 | [diff] [blame] | 3755 | stli_brds[brdp->brdnr] = brdp; |
| 3756 | mutex_unlock(&stli_brdslock); |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3757 | brdp->brdtype = BRD_ECPPCI; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3758 | /* |
| 3759 | * We have all resources from the board, so lets setup the actual |
| 3760 | * board structure now. |
| 3761 | */ |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3762 | brdp->iobase = pci_resource_start(pdev, 3); |
| 3763 | brdp->memaddr = pci_resource_start(pdev, 2); |
| 3764 | retval = stli_brdinit(brdp); |
| 3765 | if (retval) |
Jiri Slaby | b103b5c | 2006-12-08 02:39:21 -0800 | [diff] [blame] | 3766 | goto err_null; |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3767 | |
Jiri Slaby | 3901417 | 2006-12-08 02:39:22 -0800 | [diff] [blame] | 3768 | brdp->state |= BST_PROBED; |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3769 | pci_set_drvdata(pdev, brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3770 | |
Jiri Slaby | 140e92a | 2006-12-08 02:39:24 -0800 | [diff] [blame] | 3771 | EBRDENABLE(brdp); |
| 3772 | brdp->enable = NULL; |
| 3773 | brdp->disable = NULL; |
| 3774 | |
Jiri Slaby | ec3dde5 | 2006-12-08 02:39:26 -0800 | [diff] [blame] | 3775 | for (i = 0; i < brdp->nrports; i++) |
| 3776 | tty_register_device(stli_serial, brdp->brdnr * STL_MAXPORTS + i, |
| 3777 | &pdev->dev); |
| 3778 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3779 | return 0; |
Jiri Slaby | b103b5c | 2006-12-08 02:39:21 -0800 | [diff] [blame] | 3780 | err_null: |
| 3781 | stli_brds[brdp->brdnr] = NULL; |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3782 | err_fr: |
| 3783 | kfree(brdp); |
| 3784 | err: |
| 3785 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3786 | } |
| 3787 | |
Mike Frysinger | 0b9ce5a | 2009-06-18 16:49:14 -0700 | [diff] [blame] | 3788 | static void __devexit stli_pciremove(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3789 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3790 | struct stlibrd *brdp = pci_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3791 | |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3792 | stli_cleanup_ports(brdp); |
| 3793 | |
| 3794 | iounmap(brdp->membase); |
| 3795 | if (brdp->iosize > 0) |
| 3796 | release_region(brdp->iobase, brdp->iosize); |
| 3797 | |
| 3798 | stli_brds[brdp->brdnr] = NULL; |
| 3799 | kfree(brdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3800 | } |
| 3801 | |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3802 | static struct pci_driver stli_pcidriver = { |
| 3803 | .name = "istallion", |
| 3804 | .id_table = istallion_pci_tbl, |
| 3805 | .probe = stli_pciprobe, |
| 3806 | .remove = __devexit_p(stli_pciremove) |
| 3807 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3808 | /*****************************************************************************/ |
| 3809 | |
| 3810 | /* |
| 3811 | * Allocate a new board structure. Fill out the basic info in it. |
| 3812 | */ |
| 3813 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3814 | static struct stlibrd *stli_allocbrd(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3815 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3816 | struct stlibrd *brdp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3817 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3818 | brdp = kzalloc(sizeof(struct stlibrd), GFP_KERNEL); |
Tobias Klauser | b0b4ed7 | 2006-03-31 02:30:56 -0800 | [diff] [blame] | 3819 | if (!brdp) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 3820 | printk(KERN_ERR "istallion: failed to allocate memory " |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3821 | "(size=%Zd)\n", sizeof(struct stlibrd)); |
Tobias Klauser | b0b4ed7 | 2006-03-31 02:30:56 -0800 | [diff] [blame] | 3822 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3823 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3824 | brdp->magic = STLI_BOARDMAGIC; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3825 | return brdp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3826 | } |
| 3827 | |
| 3828 | /*****************************************************************************/ |
| 3829 | |
| 3830 | /* |
| 3831 | * Scan through all the boards in the configuration and see what we |
| 3832 | * can find. |
| 3833 | */ |
| 3834 | |
Al Viro | 6005e3e | 2008-11-22 17:34:14 +0000 | [diff] [blame] | 3835 | static int __init stli_initbrds(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3836 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3837 | struct stlibrd *brdp, *nxtbrdp; |
| 3838 | struct stlconf conf; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3839 | unsigned int i, j, found = 0; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3840 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3841 | |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3842 | for (stli_nrbrds = 0; stli_nrbrds < ARRAY_SIZE(stli_brdsp); |
| 3843 | stli_nrbrds++) { |
| 3844 | memset(&conf, 0, sizeof(conf)); |
| 3845 | if (stli_parsebrd(&conf, stli_brdsp[stli_nrbrds]) == 0) |
| 3846 | continue; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3847 | if ((brdp = stli_allocbrd()) == NULL) |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3848 | continue; |
| 3849 | brdp->brdnr = stli_nrbrds; |
| 3850 | brdp->brdtype = conf.brdtype; |
| 3851 | brdp->iobase = conf.ioaddr1; |
| 3852 | brdp->memaddr = conf.memaddr; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3853 | if (stli_brdinit(brdp) < 0) { |
| 3854 | kfree(brdp); |
| 3855 | continue; |
| 3856 | } |
Jiri Slaby | b103b5c | 2006-12-08 02:39:21 -0800 | [diff] [blame] | 3857 | stli_brds[brdp->brdnr] = brdp; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3858 | found++; |
Jiri Slaby | ec3dde5 | 2006-12-08 02:39:26 -0800 | [diff] [blame] | 3859 | |
| 3860 | for (i = 0; i < brdp->nrports; i++) |
| 3861 | tty_register_device(stli_serial, |
| 3862 | brdp->brdnr * STL_MAXPORTS + i, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3863 | } |
| 3864 | |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3865 | retval = stli_findeisabrds(); |
| 3866 | if (retval > 0) |
| 3867 | found += retval; |
Jiri Slaby | 845bead | 2006-12-08 02:39:17 -0800 | [diff] [blame] | 3868 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3869 | /* |
| 3870 | * All found boards are initialized. Now for a little optimization, if |
| 3871 | * no boards are sharing the "shared memory" regions then we can just |
| 3872 | * leave them all enabled. This is in fact the usual case. |
| 3873 | */ |
| 3874 | stli_shared = 0; |
| 3875 | if (stli_nrbrds > 1) { |
| 3876 | for (i = 0; (i < stli_nrbrds); i++) { |
| 3877 | brdp = stli_brds[i]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3878 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3879 | continue; |
| 3880 | for (j = i + 1; (j < stli_nrbrds); j++) { |
| 3881 | nxtbrdp = stli_brds[j]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3882 | if (nxtbrdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3883 | continue; |
| 3884 | if ((brdp->membase >= nxtbrdp->membase) && |
| 3885 | (brdp->membase <= (nxtbrdp->membase + |
| 3886 | nxtbrdp->memsize - 1))) { |
| 3887 | stli_shared++; |
| 3888 | break; |
| 3889 | } |
| 3890 | } |
| 3891 | } |
| 3892 | } |
| 3893 | |
| 3894 | if (stli_shared == 0) { |
| 3895 | for (i = 0; (i < stli_nrbrds); i++) { |
| 3896 | brdp = stli_brds[i]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3897 | if (brdp == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3898 | continue; |
| 3899 | if (brdp->state & BST_FOUND) { |
| 3900 | EBRDENABLE(brdp); |
| 3901 | brdp->enable = NULL; |
| 3902 | brdp->disable = NULL; |
| 3903 | } |
| 3904 | } |
| 3905 | } |
| 3906 | |
Jiri Slaby | 140e92a | 2006-12-08 02:39:24 -0800 | [diff] [blame] | 3907 | retval = pci_register_driver(&stli_pcidriver); |
| 3908 | if (retval && found == 0) { |
| 3909 | printk(KERN_ERR "Neither isa nor eisa cards found nor pci " |
| 3910 | "driver can be registered!\n"); |
| 3911 | goto err; |
| 3912 | } |
| 3913 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3914 | return 0; |
Jiri Slaby | 8f8f5a5 | 2006-12-08 02:39:23 -0800 | [diff] [blame] | 3915 | err: |
| 3916 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3917 | } |
| 3918 | |
| 3919 | /*****************************************************************************/ |
| 3920 | |
| 3921 | /* |
| 3922 | * Code to handle an "staliomem" read operation. This device is the |
| 3923 | * contents of the board shared memory. It is used for down loading |
| 3924 | * the slave image (and debugging :-) |
| 3925 | */ |
| 3926 | |
| 3927 | static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, loff_t *offp) |
| 3928 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3929 | unsigned long flags; |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 3930 | void __iomem *memptr; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3931 | struct stlibrd *brdp; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3932 | unsigned int brdnr; |
| 3933 | int size, n; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3934 | void *p; |
| 3935 | loff_t off = *offp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3936 | |
Josef Sipek | a7113a9 | 2006-12-08 02:36:55 -0800 | [diff] [blame] | 3937 | brdnr = iminor(fp->f_path.dentry->d_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3938 | if (brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3939 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3940 | brdp = stli_brds[brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3941 | if (brdp == NULL) |
| 3942 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3943 | if (brdp->state == 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3944 | return -ENODEV; |
| 3945 | if (off >= brdp->memsize || off + count < off) |
| 3946 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3947 | |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3948 | size = min(count, (size_t)(brdp->memsize - off)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3949 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3950 | /* |
| 3951 | * Copy the data a page at a time |
| 3952 | */ |
| 3953 | |
| 3954 | p = (void *)__get_free_page(GFP_KERNEL); |
| 3955 | if(p == NULL) |
| 3956 | return -ENOMEM; |
| 3957 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3958 | while (size > 0) { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3959 | spin_lock_irqsave(&brd_lock, flags); |
| 3960 | EBRDENABLE(brdp); |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 3961 | memptr = EBRDGETMEMPTR(brdp, off); |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3962 | n = min(size, (int)(brdp->pagesize - (((unsigned long) off) % brdp->pagesize))); |
| 3963 | n = min(n, (int)PAGE_SIZE); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3964 | memcpy_fromio(p, memptr, n); |
| 3965 | EBRDDISABLE(brdp); |
| 3966 | spin_unlock_irqrestore(&brd_lock, flags); |
| 3967 | if (copy_to_user(buf, p, n)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3968 | count = -EFAULT; |
| 3969 | goto out; |
| 3970 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3971 | off += n; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3972 | buf += n; |
| 3973 | size -= n; |
| 3974 | } |
| 3975 | out: |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3976 | *offp = off; |
| 3977 | free_page((unsigned long)p); |
| 3978 | return count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3979 | } |
| 3980 | |
| 3981 | /*****************************************************************************/ |
| 3982 | |
| 3983 | /* |
| 3984 | * Code to handle an "staliomem" write operation. This device is the |
| 3985 | * contents of the board shared memory. It is used for down loading |
| 3986 | * the slave image (and debugging :-) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3987 | * |
| 3988 | * FIXME: copy under lock |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3989 | */ |
| 3990 | |
| 3991 | static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t count, loff_t *offp) |
| 3992 | { |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3993 | unsigned long flags; |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 3994 | void __iomem *memptr; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 3995 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3996 | char __user *chbuf; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 3997 | unsigned int brdnr; |
| 3998 | int size, n; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 3999 | void *p; |
| 4000 | loff_t off = *offp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4001 | |
Josef Sipek | a7113a9 | 2006-12-08 02:36:55 -0800 | [diff] [blame] | 4002 | brdnr = iminor(fp->f_path.dentry->d_inode); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4003 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4004 | if (brdnr >= stli_nrbrds) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4005 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4006 | brdp = stli_brds[brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4007 | if (brdp == NULL) |
| 4008 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4009 | if (brdp->state == 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4010 | return -ENODEV; |
| 4011 | if (off >= brdp->memsize || off + count < off) |
| 4012 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4013 | |
| 4014 | chbuf = (char __user *) buf; |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4015 | size = min(count, (size_t)(brdp->memsize - off)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4016 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4017 | /* |
| 4018 | * Copy the data a page at a time |
| 4019 | */ |
| 4020 | |
| 4021 | p = (void *)__get_free_page(GFP_KERNEL); |
| 4022 | if(p == NULL) |
| 4023 | return -ENOMEM; |
| 4024 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4025 | while (size > 0) { |
Jiri Slaby | a3f8d9d | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4026 | n = min(size, (int)(brdp->pagesize - (((unsigned long) off) % brdp->pagesize))); |
| 4027 | n = min(n, (int)PAGE_SIZE); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4028 | if (copy_from_user(p, chbuf, n)) { |
| 4029 | if (count == 0) |
| 4030 | count = -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4031 | goto out; |
| 4032 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4033 | spin_lock_irqsave(&brd_lock, flags); |
| 4034 | EBRDENABLE(brdp); |
Al Viro | 29756fa | 2006-10-10 22:47:27 +0100 | [diff] [blame] | 4035 | memptr = EBRDGETMEMPTR(brdp, off); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4036 | memcpy_toio(memptr, p, n); |
| 4037 | EBRDDISABLE(brdp); |
| 4038 | spin_unlock_irqrestore(&brd_lock, flags); |
| 4039 | off += n; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4040 | chbuf += n; |
| 4041 | size -= n; |
| 4042 | } |
| 4043 | out: |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4044 | free_page((unsigned long) p); |
| 4045 | *offp = off; |
| 4046 | return count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4047 | } |
| 4048 | |
| 4049 | /*****************************************************************************/ |
| 4050 | |
| 4051 | /* |
| 4052 | * Return the board stats structure to user app. |
| 4053 | */ |
| 4054 | |
| 4055 | static int stli_getbrdstats(combrd_t __user *bp) |
| 4056 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4057 | struct stlibrd *brdp; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 4058 | unsigned int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4059 | |
| 4060 | if (copy_from_user(&stli_brdstats, bp, sizeof(combrd_t))) |
| 4061 | return -EFAULT; |
| 4062 | if (stli_brdstats.brd >= STL_MAXBRDS) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4063 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4064 | brdp = stli_brds[stli_brdstats.brd]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4065 | if (brdp == NULL) |
| 4066 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4067 | |
| 4068 | memset(&stli_brdstats, 0, sizeof(combrd_t)); |
| 4069 | stli_brdstats.brd = brdp->brdnr; |
| 4070 | stli_brdstats.type = brdp->brdtype; |
| 4071 | stli_brdstats.hwid = 0; |
| 4072 | stli_brdstats.state = brdp->state; |
| 4073 | stli_brdstats.ioaddr = brdp->iobase; |
| 4074 | stli_brdstats.memaddr = brdp->memaddr; |
| 4075 | stli_brdstats.nrpanels = brdp->nrpanels; |
| 4076 | stli_brdstats.nrports = brdp->nrports; |
| 4077 | for (i = 0; (i < brdp->nrpanels); i++) { |
| 4078 | stli_brdstats.panels[i].panel = i; |
| 4079 | stli_brdstats.panels[i].hwid = brdp->panelids[i]; |
| 4080 | stli_brdstats.panels[i].nrports = brdp->panels[i]; |
| 4081 | } |
| 4082 | |
| 4083 | if (copy_to_user(bp, &stli_brdstats, sizeof(combrd_t))) |
| 4084 | return -EFAULT; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4085 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4086 | } |
| 4087 | |
| 4088 | /*****************************************************************************/ |
| 4089 | |
| 4090 | /* |
| 4091 | * Resolve the referenced port number into a port struct pointer. |
| 4092 | */ |
| 4093 | |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 4094 | static struct stliport *stli_getport(unsigned int brdnr, unsigned int panelnr, |
| 4095 | unsigned int portnr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4096 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4097 | struct stlibrd *brdp; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 4098 | unsigned int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4099 | |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 4100 | if (brdnr >= STL_MAXBRDS) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4101 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4102 | brdp = stli_brds[brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4103 | if (brdp == NULL) |
| 4104 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4105 | for (i = 0; (i < panelnr); i++) |
| 4106 | portnr += brdp->panels[i]; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 4107 | if (portnr >= brdp->nrports) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4108 | return NULL; |
| 4109 | return brdp->ports[portnr]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4110 | } |
| 4111 | |
| 4112 | /*****************************************************************************/ |
| 4113 | |
| 4114 | /* |
| 4115 | * Return the port stats structure to user app. A NULL port struct |
| 4116 | * pointer passed in means that we need to find out from the app |
| 4117 | * what port to get stats for (used through board control device). |
| 4118 | */ |
| 4119 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 4120 | static int stli_portcmdstats(struct tty_struct *tty, struct stliport *portp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4121 | { |
| 4122 | unsigned long flags; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4123 | struct stlibrd *brdp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4124 | int rc; |
| 4125 | |
| 4126 | memset(&stli_comstats, 0, sizeof(comstats_t)); |
| 4127 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4128 | if (portp == NULL) |
| 4129 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4130 | brdp = stli_brds[portp->brdnr]; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4131 | if (brdp == NULL) |
| 4132 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4133 | |
| 4134 | if (brdp->state & BST_STARTED) { |
| 4135 | if ((rc = stli_cmdwait(brdp, portp, A_GETSTATS, |
| 4136 | &stli_cdkstats, sizeof(asystats_t), 1)) < 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4137 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4138 | } else { |
| 4139 | memset(&stli_cdkstats, 0, sizeof(asystats_t)); |
| 4140 | } |
| 4141 | |
| 4142 | stli_comstats.brd = portp->brdnr; |
| 4143 | stli_comstats.panel = portp->panelnr; |
| 4144 | stli_comstats.port = portp->portnr; |
| 4145 | stli_comstats.state = portp->state; |
Wang Chen | 42a77a1 | 2008-07-21 17:48:59 +0800 | [diff] [blame] | 4146 | stli_comstats.flags = portp->port.flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4147 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4148 | spin_lock_irqsave(&brd_lock, flags); |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 4149 | if (tty != NULL) { |
| 4150 | if (portp->port.tty == tty) { |
| 4151 | stli_comstats.ttystate = tty->flags; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4152 | stli_comstats.rxbuffered = -1; |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 4153 | if (tty->termios != NULL) { |
| 4154 | stli_comstats.cflags = tty->termios->c_cflag; |
| 4155 | stli_comstats.iflags = tty->termios->c_iflag; |
| 4156 | stli_comstats.oflags = tty->termios->c_oflag; |
| 4157 | stli_comstats.lflags = tty->termios->c_lflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4158 | } |
| 4159 | } |
| 4160 | } |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4161 | spin_unlock_irqrestore(&brd_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4162 | |
| 4163 | stli_comstats.txtotal = stli_cdkstats.txchars; |
| 4164 | stli_comstats.rxtotal = stli_cdkstats.rxchars + stli_cdkstats.ringover; |
| 4165 | stli_comstats.txbuffered = stli_cdkstats.txringq; |
| 4166 | stli_comstats.rxbuffered += stli_cdkstats.rxringq; |
| 4167 | stli_comstats.rxoverrun = stli_cdkstats.overruns; |
| 4168 | stli_comstats.rxparity = stli_cdkstats.parity; |
| 4169 | stli_comstats.rxframing = stli_cdkstats.framing; |
| 4170 | stli_comstats.rxlost = stli_cdkstats.ringover; |
| 4171 | stli_comstats.rxbreaks = stli_cdkstats.rxbreaks; |
| 4172 | stli_comstats.txbreaks = stli_cdkstats.txbreaks; |
| 4173 | stli_comstats.txxon = stli_cdkstats.txstart; |
| 4174 | stli_comstats.txxoff = stli_cdkstats.txstop; |
| 4175 | stli_comstats.rxxon = stli_cdkstats.rxstart; |
| 4176 | stli_comstats.rxxoff = stli_cdkstats.rxstop; |
| 4177 | stli_comstats.rxrtsoff = stli_cdkstats.rtscnt / 2; |
| 4178 | stli_comstats.rxrtson = stli_cdkstats.rtscnt - stli_comstats.rxrtsoff; |
| 4179 | stli_comstats.modem = stli_cdkstats.dcdcnt; |
| 4180 | stli_comstats.hwid = stli_cdkstats.hwid; |
| 4181 | stli_comstats.signals = stli_mktiocm(stli_cdkstats.signals); |
| 4182 | |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4183 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4184 | } |
| 4185 | |
| 4186 | /*****************************************************************************/ |
| 4187 | |
| 4188 | /* |
| 4189 | * Return the port stats structure to user app. A NULL port struct |
| 4190 | * pointer passed in means that we need to find out from the app |
| 4191 | * what port to get stats for (used through board control device). |
| 4192 | */ |
| 4193 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 4194 | static int stli_getportstats(struct tty_struct *tty, struct stliport *portp, |
| 4195 | comstats_t __user *cp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4196 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4197 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4198 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4199 | |
| 4200 | if (!portp) { |
| 4201 | if (copy_from_user(&stli_comstats, cp, sizeof(comstats_t))) |
| 4202 | return -EFAULT; |
| 4203 | portp = stli_getport(stli_comstats.brd, stli_comstats.panel, |
| 4204 | stli_comstats.port); |
| 4205 | if (!portp) |
| 4206 | return -ENODEV; |
| 4207 | } |
| 4208 | |
| 4209 | brdp = stli_brds[portp->brdnr]; |
| 4210 | if (!brdp) |
| 4211 | return -ENODEV; |
| 4212 | |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 4213 | if ((rc = stli_portcmdstats(tty, portp)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4214 | return rc; |
| 4215 | |
| 4216 | return copy_to_user(cp, &stli_comstats, sizeof(comstats_t)) ? |
| 4217 | -EFAULT : 0; |
| 4218 | } |
| 4219 | |
| 4220 | /*****************************************************************************/ |
| 4221 | |
| 4222 | /* |
| 4223 | * Clear the port stats structure. We also return it zeroed out... |
| 4224 | */ |
| 4225 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4226 | static int stli_clrportstats(struct stliport *portp, comstats_t __user *cp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4227 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4228 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4229 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4230 | |
| 4231 | if (!portp) { |
| 4232 | if (copy_from_user(&stli_comstats, cp, sizeof(comstats_t))) |
| 4233 | return -EFAULT; |
| 4234 | portp = stli_getport(stli_comstats.brd, stli_comstats.panel, |
| 4235 | stli_comstats.port); |
| 4236 | if (!portp) |
| 4237 | return -ENODEV; |
| 4238 | } |
| 4239 | |
| 4240 | brdp = stli_brds[portp->brdnr]; |
| 4241 | if (!brdp) |
| 4242 | return -ENODEV; |
| 4243 | |
| 4244 | if (brdp->state & BST_STARTED) { |
| 4245 | if ((rc = stli_cmdwait(brdp, portp, A_CLEARSTATS, NULL, 0, 0)) < 0) |
| 4246 | return rc; |
| 4247 | } |
| 4248 | |
| 4249 | memset(&stli_comstats, 0, sizeof(comstats_t)); |
| 4250 | stli_comstats.brd = portp->brdnr; |
| 4251 | stli_comstats.panel = portp->panelnr; |
| 4252 | stli_comstats.port = portp->portnr; |
| 4253 | |
| 4254 | if (copy_to_user(cp, &stli_comstats, sizeof(comstats_t))) |
| 4255 | return -EFAULT; |
| 4256 | return 0; |
| 4257 | } |
| 4258 | |
| 4259 | /*****************************************************************************/ |
| 4260 | |
| 4261 | /* |
| 4262 | * Return the entire driver ports structure to a user app. |
| 4263 | */ |
| 4264 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4265 | static int stli_getportstruct(struct stliport __user *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4266 | { |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 4267 | struct stliport stli_dummyport; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4268 | struct stliport *portp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4269 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4270 | if (copy_from_user(&stli_dummyport, arg, sizeof(struct stliport))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4271 | return -EFAULT; |
| 4272 | portp = stli_getport(stli_dummyport.brdnr, stli_dummyport.panelnr, |
| 4273 | stli_dummyport.portnr); |
| 4274 | if (!portp) |
| 4275 | return -ENODEV; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4276 | if (copy_to_user(arg, portp, sizeof(struct stliport))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4277 | return -EFAULT; |
| 4278 | return 0; |
| 4279 | } |
| 4280 | |
| 4281 | /*****************************************************************************/ |
| 4282 | |
| 4283 | /* |
| 4284 | * Return the entire driver board structure to a user app. |
| 4285 | */ |
| 4286 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4287 | static int stli_getbrdstruct(struct stlibrd __user *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4288 | { |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 4289 | struct stlibrd stli_dummybrd; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4290 | struct stlibrd *brdp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4291 | |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4292 | if (copy_from_user(&stli_dummybrd, arg, sizeof(struct stlibrd))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4293 | return -EFAULT; |
Jiri Slaby | 1328d73 | 2006-12-08 02:39:19 -0800 | [diff] [blame] | 4294 | if (stli_dummybrd.brdnr >= STL_MAXBRDS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4295 | return -ENODEV; |
| 4296 | brdp = stli_brds[stli_dummybrd.brdnr]; |
| 4297 | if (!brdp) |
| 4298 | return -ENODEV; |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4299 | if (copy_to_user(arg, brdp, sizeof(struct stlibrd))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4300 | return -EFAULT; |
| 4301 | return 0; |
| 4302 | } |
| 4303 | |
| 4304 | /*****************************************************************************/ |
| 4305 | |
| 4306 | /* |
| 4307 | * The "staliomem" device is also required to do some special operations on |
| 4308 | * the board. We need to be able to send an interrupt to the board, |
| 4309 | * reset it, and start/stop it. |
| 4310 | */ |
| 4311 | |
| 4312 | static int stli_memioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg) |
| 4313 | { |
Jiri Slaby | 1f8ec43 | 2006-12-08 02:39:18 -0800 | [diff] [blame] | 4314 | struct stlibrd *brdp; |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4315 | int brdnr, rc, done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4316 | void __user *argp = (void __user *)arg; |
| 4317 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4318 | /* |
| 4319 | * First up handle the board independent ioctls. |
| 4320 | */ |
| 4321 | done = 0; |
| 4322 | rc = 0; |
| 4323 | |
Alan Cox | 3736113 | 2008-04-30 00:53:19 -0700 | [diff] [blame] | 4324 | lock_kernel(); |
| 4325 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4326 | switch (cmd) { |
| 4327 | case COM_GETPORTSTATS: |
Alan Cox | d18a750 | 2008-10-13 10:40:07 +0100 | [diff] [blame] | 4328 | rc = stli_getportstats(NULL, NULL, argp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4329 | done++; |
| 4330 | break; |
| 4331 | case COM_CLRPORTSTATS: |
| 4332 | rc = stli_clrportstats(NULL, argp); |
| 4333 | done++; |
| 4334 | break; |
| 4335 | case COM_GETBRDSTATS: |
| 4336 | rc = stli_getbrdstats(argp); |
| 4337 | done++; |
| 4338 | break; |
| 4339 | case COM_READPORT: |
| 4340 | rc = stli_getportstruct(argp); |
| 4341 | done++; |
| 4342 | break; |
| 4343 | case COM_READBOARD: |
| 4344 | rc = stli_getbrdstruct(argp); |
| 4345 | done++; |
| 4346 | break; |
| 4347 | } |
Alan Cox | 3736113 | 2008-04-30 00:53:19 -0700 | [diff] [blame] | 4348 | unlock_kernel(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4349 | |
| 4350 | if (done) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4351 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4352 | |
| 4353 | /* |
| 4354 | * Now handle the board specific ioctls. These all depend on the |
| 4355 | * minor number of the device they were called from. |
| 4356 | */ |
| 4357 | brdnr = iminor(ip); |
| 4358 | if (brdnr >= STL_MAXBRDS) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4359 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4360 | brdp = stli_brds[brdnr]; |
| 4361 | if (!brdp) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4362 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4363 | if (brdp->state == 0) |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4364 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4365 | |
Alan Cox | 3736113 | 2008-04-30 00:53:19 -0700 | [diff] [blame] | 4366 | lock_kernel(); |
| 4367 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4368 | switch (cmd) { |
| 4369 | case STL_BINTR: |
| 4370 | EBRDINTR(brdp); |
| 4371 | break; |
| 4372 | case STL_BSTART: |
| 4373 | rc = stli_startbrd(brdp); |
| 4374 | break; |
| 4375 | case STL_BSTOP: |
| 4376 | brdp->state &= ~BST_STARTED; |
| 4377 | break; |
| 4378 | case STL_BRESET: |
| 4379 | brdp->state &= ~BST_STARTED; |
| 4380 | EBRDRESET(brdp); |
| 4381 | if (stli_shared == 0) { |
| 4382 | if (brdp->reenable != NULL) |
| 4383 | (* brdp->reenable)(brdp); |
| 4384 | } |
| 4385 | break; |
| 4386 | default: |
| 4387 | rc = -ENOIOCTLCMD; |
| 4388 | break; |
| 4389 | } |
Alan Cox | 3736113 | 2008-04-30 00:53:19 -0700 | [diff] [blame] | 4390 | unlock_kernel(); |
Alan Cox | 4ac4360 | 2006-06-28 04:26:52 -0700 | [diff] [blame] | 4391 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4392 | } |
| 4393 | |
Jeff Dike | b68e31d | 2006-10-02 02:17:18 -0700 | [diff] [blame] | 4394 | static const struct tty_operations stli_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4395 | .open = stli_open, |
| 4396 | .close = stli_close, |
| 4397 | .write = stli_write, |
| 4398 | .put_char = stli_putchar, |
| 4399 | .flush_chars = stli_flushchars, |
| 4400 | .write_room = stli_writeroom, |
| 4401 | .chars_in_buffer = stli_charsinbuffer, |
| 4402 | .ioctl = stli_ioctl, |
| 4403 | .set_termios = stli_settermios, |
| 4404 | .throttle = stli_throttle, |
| 4405 | .unthrottle = stli_unthrottle, |
| 4406 | .stop = stli_stop, |
| 4407 | .start = stli_start, |
| 4408 | .hangup = stli_hangup, |
| 4409 | .flush_buffer = stli_flushbuffer, |
| 4410 | .break_ctl = stli_breakctl, |
| 4411 | .wait_until_sent = stli_waituntilsent, |
| 4412 | .send_xchar = stli_sendxchar, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4413 | .tiocmget = stli_tiocmget, |
| 4414 | .tiocmset = stli_tiocmset, |
Alexey Dobriyan | 5bd6de7 | 2009-03-31 15:19:16 -0700 | [diff] [blame] | 4415 | .proc_fops = &stli_proc_fops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4416 | }; |
| 4417 | |
Alan Cox | 31f3593 | 2009-01-02 13:45:05 +0000 | [diff] [blame] | 4418 | static const struct tty_port_operations stli_port_ops = { |
| 4419 | .carrier_raised = stli_carrier_raised, |
Alan Cox | fcc8ac1 | 2009-06-11 12:24:17 +0100 | [diff] [blame] | 4420 | .dtr_rts = stli_dtr_rts, |
Alan Cox | 31f3593 | 2009-01-02 13:45:05 +0000 | [diff] [blame] | 4421 | }; |
| 4422 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4423 | /*****************************************************************************/ |
Jiri Slaby | f1cc54f | 2006-12-08 02:39:24 -0800 | [diff] [blame] | 4424 | /* |
| 4425 | * Loadable module initialization stuff. |
| 4426 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4427 | |
Jiri Slaby | f2362c9 | 2006-12-08 02:39:25 -0800 | [diff] [blame] | 4428 | static void istallion_cleanup_isa(void) |
Jiri Slaby | f1cc54f | 2006-12-08 02:39:24 -0800 | [diff] [blame] | 4429 | { |
| 4430 | struct stlibrd *brdp; |
| 4431 | unsigned int j; |
Jiri Slaby | f1cc54f | 2006-12-08 02:39:24 -0800 | [diff] [blame] | 4432 | |
| 4433 | for (j = 0; (j < stli_nrbrds); j++) { |
| 4434 | if ((brdp = stli_brds[j]) == NULL || (brdp->state & BST_PROBED)) |
| 4435 | continue; |
| 4436 | |
| 4437 | stli_cleanup_ports(brdp); |
| 4438 | |
| 4439 | iounmap(brdp->membase); |
| 4440 | if (brdp->iosize > 0) |
| 4441 | release_region(brdp->iobase, brdp->iosize); |
| 4442 | kfree(brdp); |
| 4443 | stli_brds[j] = NULL; |
| 4444 | } |
| 4445 | } |
| 4446 | |
Jiri Slaby | f2362c9 | 2006-12-08 02:39:25 -0800 | [diff] [blame] | 4447 | static int __init istallion_module_init(void) |
| 4448 | { |
| 4449 | unsigned int i; |
| 4450 | int retval; |
| 4451 | |
| 4452 | printk(KERN_INFO "%s: version %s\n", stli_drvtitle, stli_drvversion); |
| 4453 | |
| 4454 | spin_lock_init(&stli_lock); |
| 4455 | spin_lock_init(&brd_lock); |
| 4456 | |
| 4457 | stli_txcookbuf = kmalloc(STLI_TXBUFSIZE, GFP_KERNEL); |
| 4458 | if (!stli_txcookbuf) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 4459 | printk(KERN_ERR "istallion: failed to allocate memory " |
Jiri Slaby | f2362c9 | 2006-12-08 02:39:25 -0800 | [diff] [blame] | 4460 | "(size=%d)\n", STLI_TXBUFSIZE); |
| 4461 | retval = -ENOMEM; |
| 4462 | goto err; |
| 4463 | } |
| 4464 | |
| 4465 | stli_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS); |
| 4466 | if (!stli_serial) { |
| 4467 | retval = -ENOMEM; |
| 4468 | goto err_free; |
| 4469 | } |
| 4470 | |
| 4471 | stli_serial->owner = THIS_MODULE; |
| 4472 | stli_serial->driver_name = stli_drvname; |
| 4473 | stli_serial->name = stli_serialname; |
| 4474 | stli_serial->major = STL_SERIALMAJOR; |
| 4475 | stli_serial->minor_start = 0; |
| 4476 | stli_serial->type = TTY_DRIVER_TYPE_SERIAL; |
| 4477 | stli_serial->subtype = SERIAL_TYPE_NORMAL; |
| 4478 | stli_serial->init_termios = stli_deftermios; |
Jiri Slaby | ec3dde5 | 2006-12-08 02:39:26 -0800 | [diff] [blame] | 4479 | stli_serial->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; |
Jiri Slaby | f2362c9 | 2006-12-08 02:39:25 -0800 | [diff] [blame] | 4480 | tty_set_operations(stli_serial, &stli_ops); |
| 4481 | |
| 4482 | retval = tty_register_driver(stli_serial); |
| 4483 | if (retval) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 4484 | printk(KERN_ERR "istallion: failed to register serial driver\n"); |
Jiri Slaby | f2362c9 | 2006-12-08 02:39:25 -0800 | [diff] [blame] | 4485 | goto err_ttyput; |
| 4486 | } |
| 4487 | |
| 4488 | retval = stli_initbrds(); |
| 4489 | if (retval) |
| 4490 | goto err_ttyunr; |
| 4491 | |
| 4492 | /* |
| 4493 | * Set up a character driver for the shared memory region. We need this |
| 4494 | * to down load the slave code image. Also it is a useful debugging tool. |
| 4495 | */ |
| 4496 | retval = register_chrdev(STL_SIOMEMMAJOR, "staliomem", &stli_fsiomem); |
| 4497 | if (retval) { |
Alan Cox | a661499 | 2009-01-02 13:46:50 +0000 | [diff] [blame] | 4498 | printk(KERN_ERR "istallion: failed to register serial memory " |
Jiri Slaby | f2362c9 | 2006-12-08 02:39:25 -0800 | [diff] [blame] | 4499 | "device\n"); |
| 4500 | goto err_deinit; |
| 4501 | } |
| 4502 | |
| 4503 | istallion_class = class_create(THIS_MODULE, "staliomem"); |
| 4504 | for (i = 0; i < 4; i++) |
Greg Kroah-Hartman | 03457cd | 2008-07-21 20:03:34 -0700 | [diff] [blame] | 4505 | device_create(istallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i), |
| 4506 | NULL, "staliomem%d", i); |
Jiri Slaby | f2362c9 | 2006-12-08 02:39:25 -0800 | [diff] [blame] | 4507 | |
| 4508 | return 0; |
| 4509 | err_deinit: |
| 4510 | pci_unregister_driver(&stli_pcidriver); |
| 4511 | istallion_cleanup_isa(); |
| 4512 | err_ttyunr: |
| 4513 | tty_unregister_driver(stli_serial); |
| 4514 | err_ttyput: |
| 4515 | put_tty_driver(stli_serial); |
| 4516 | err_free: |
| 4517 | kfree(stli_txcookbuf); |
| 4518 | err: |
| 4519 | return retval; |
| 4520 | } |
| 4521 | |
| 4522 | /*****************************************************************************/ |
| 4523 | |
| 4524 | static void __exit istallion_module_exit(void) |
| 4525 | { |
| 4526 | unsigned int j; |
| 4527 | |
| 4528 | printk(KERN_INFO "Unloading %s: version %s\n", stli_drvtitle, |
| 4529 | stli_drvversion); |
| 4530 | |
| 4531 | if (stli_timeron) { |
| 4532 | stli_timeron = 0; |
| 4533 | del_timer_sync(&stli_timerlist); |
| 4534 | } |
| 4535 | |
| 4536 | unregister_chrdev(STL_SIOMEMMAJOR, "staliomem"); |
| 4537 | |
| 4538 | for (j = 0; j < 4; j++) |
tonyj@suse.de | 07c015e | 2007-08-07 22:28:44 -0700 | [diff] [blame] | 4539 | device_destroy(istallion_class, MKDEV(STL_SIOMEMMAJOR, j)); |
Jiri Slaby | f2362c9 | 2006-12-08 02:39:25 -0800 | [diff] [blame] | 4540 | class_destroy(istallion_class); |
| 4541 | |
| 4542 | pci_unregister_driver(&stli_pcidriver); |
| 4543 | istallion_cleanup_isa(); |
| 4544 | |
| 4545 | tty_unregister_driver(stli_serial); |
| 4546 | put_tty_driver(stli_serial); |
| 4547 | |
| 4548 | kfree(stli_txcookbuf); |
| 4549 | } |
| 4550 | |
Jiri Slaby | f1cc54f | 2006-12-08 02:39:24 -0800 | [diff] [blame] | 4551 | module_init(istallion_module_init); |
| 4552 | module_exit(istallion_module_exit); |