Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Edgeport USB Serial Converter driver |
| 3 | * |
| 4 | * Copyright (C) 2000 Inside Out Networks, All rights reserved. |
| 5 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * Supports the following devices: |
| 13 | * Edgeport/4 |
| 14 | * Edgeport/4t |
| 15 | * Edgeport/2 |
| 16 | * Edgeport/4i |
| 17 | * Edgeport/2i |
| 18 | * Edgeport/421 |
| 19 | * Edgeport/21 |
| 20 | * Rapidport/4 |
| 21 | * Edgeport/8 |
| 22 | * Edgeport/2D8 |
| 23 | * Edgeport/4D8 |
| 24 | * Edgeport/8i |
| 25 | * |
| 26 | * For questions or problems with this driver, contact Inside Out |
| 27 | * Networks technical support, or Peter Berger <pberger@brimson.com>, |
| 28 | * or Al Borchers <alborchers@steinerpoint.com>. |
| 29 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | */ |
| 31 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include <linux/kernel.h> |
| 33 | #include <linux/jiffies.h> |
| 34 | #include <linux/errno.h> |
| 35 | #include <linux/init.h> |
| 36 | #include <linux/slab.h> |
| 37 | #include <linux/tty.h> |
| 38 | #include <linux/tty_driver.h> |
| 39 | #include <linux/tty_flip.h> |
| 40 | #include <linux/module.h> |
| 41 | #include <linux/spinlock.h> |
| 42 | #include <linux/serial.h> |
| 43 | #include <linux/ioctl.h> |
| 44 | #include <linux/wait.h> |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 45 | #include <linux/firmware.h> |
| 46 | #include <linux/ihex.h> |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 47 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #include <linux/usb.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame] | 49 | #include <linux/usb/serial.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #include "io_edgeport.h" |
| 51 | #include "io_ionsp.h" /* info for the iosp messages */ |
| 52 | #include "io_16654.h" /* 16654 UART defines */ |
| 53 | |
| 54 | /* |
| 55 | * Version Information |
| 56 | */ |
| 57 | #define DRIVER_VERSION "v2.7" |
| 58 | #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli" |
| 59 | #define DRIVER_DESC "Edgeport USB Serial Driver" |
| 60 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | #define MAX_NAME_LEN 64 |
| 62 | |
| 63 | #define CHASE_TIMEOUT (5*HZ) /* 5 seconds */ |
| 64 | #define OPEN_TIMEOUT (5*HZ) /* 5 seconds */ |
| 65 | #define COMMAND_TIMEOUT (5*HZ) /* 5 seconds */ |
| 66 | |
| 67 | /* receive port state */ |
| 68 | enum RXSTATE { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 69 | EXPECT_HDR1 = 0, /* Expect header byte 1 */ |
| 70 | EXPECT_HDR2 = 1, /* Expect header byte 2 */ |
| 71 | EXPECT_DATA = 2, /* Expect 'RxBytesRemaining' data */ |
| 72 | EXPECT_HDR3 = 3, /* Expect header byte 3 (for status hdrs only) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | }; |
| 74 | |
| 75 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 76 | /* Transmit Fifo |
| 77 | * This Transmit queue is an extension of the edgeport Rx buffer. |
| 78 | * The maximum amount of data buffered in both the edgeport |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | * Rx buffer (maxTxCredits) and this buffer will never exceed maxTxCredits. |
| 80 | */ |
| 81 | struct TxFifo { |
| 82 | unsigned int head; /* index to head pointer (write) */ |
| 83 | unsigned int tail; /* index to tail pointer (read) */ |
| 84 | unsigned int count; /* Bytes in queue */ |
| 85 | unsigned int size; /* Max size of queue (equal to Max number of TxCredits) */ |
| 86 | unsigned char *fifo; /* allocated Buffer */ |
| 87 | }; |
| 88 | |
| 89 | /* This structure holds all of the local port information */ |
| 90 | struct edgeport_port { |
| 91 | __u16 txCredits; /* our current credits for this port */ |
| 92 | __u16 maxTxCredits; /* the max size of the port */ |
| 93 | |
| 94 | struct TxFifo txfifo; /* transmit fifo -- size will be maxTxCredits */ |
| 95 | struct urb *write_urb; /* write URB for this port */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 96 | bool write_in_progress; /* 'true' while a write URB is outstanding */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | spinlock_t ep_lock; |
| 98 | |
| 99 | __u8 shadowLCR; /* last LCR value received */ |
| 100 | __u8 shadowMCR; /* last MCR value received */ |
| 101 | __u8 shadowMSR; /* last MSR value received */ |
| 102 | __u8 shadowLSR; /* last LSR value received */ |
| 103 | __u8 shadowXonChar; /* last value set as XON char in Edgeport */ |
| 104 | __u8 shadowXoffChar; /* last value set as XOFF char in Edgeport */ |
| 105 | __u8 validDataMask; |
| 106 | __u32 baudRate; |
| 107 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 108 | bool open; |
| 109 | bool openPending; |
| 110 | bool commandPending; |
| 111 | bool closePending; |
| 112 | bool chaseResponsePending; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
| 114 | wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */ |
| 115 | wait_queue_head_t wait_open; /* for handling sleeping while waiting for open to finish */ |
| 116 | wait_queue_head_t wait_command; /* for handling sleeping while waiting for command to finish */ |
| 117 | wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */ |
| 118 | |
| 119 | struct async_icount icount; |
| 120 | struct usb_serial_port *port; /* loop back to the owner of this object */ |
| 121 | }; |
| 122 | |
| 123 | |
| 124 | /* This structure holds all of the individual device information */ |
| 125 | struct edgeport_serial { |
Pete Zaitcev | ad93375 | 2006-05-22 21:49:44 -0700 | [diff] [blame] | 126 | char name[MAX_NAME_LEN+2]; /* string name of this device */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | |
| 128 | struct edge_manuf_descriptor manuf_descriptor; /* the manufacturer descriptor */ |
| 129 | struct edge_boot_descriptor boot_descriptor; /* the boot firmware descriptor */ |
| 130 | struct edgeport_product_info product_info; /* Product Info */ |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 131 | struct edge_compatibility_descriptor epic_descriptor; /* Edgeport compatible descriptor */ |
| 132 | int is_epic; /* flag if EPiC device or not */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
| 134 | __u8 interrupt_in_endpoint; /* the interrupt endpoint handle */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 135 | unsigned char *interrupt_in_buffer; /* the buffer we use for the interrupt endpoint */ |
| 136 | struct urb *interrupt_read_urb; /* our interrupt urb */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | |
| 138 | __u8 bulk_in_endpoint; /* the bulk in endpoint handle */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 139 | unsigned char *bulk_in_buffer; /* the buffer we use for the bulk in endpoint */ |
| 140 | struct urb *read_urb; /* our bulk read urb */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 141 | bool read_in_progress; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | spinlock_t es_lock; |
| 143 | |
| 144 | __u8 bulk_out_endpoint; /* the bulk out endpoint handle */ |
| 145 | |
| 146 | __s16 rxBytesAvail; /* the number of bytes that we need to read from this device */ |
| 147 | |
| 148 | enum RXSTATE rxState; /* the current state of the bulk receive processor */ |
| 149 | __u8 rxHeader1; /* receive header byte 1 */ |
| 150 | __u8 rxHeader2; /* receive header byte 2 */ |
| 151 | __u8 rxHeader3; /* receive header byte 3 */ |
| 152 | __u8 rxPort; /* the port that we are currently receiving data for */ |
| 153 | __u8 rxStatusCode; /* the receive status code */ |
| 154 | __u8 rxStatusParam; /* the receive status paramater */ |
| 155 | __s16 rxBytesRemaining; /* the number of port bytes left to read */ |
| 156 | struct usb_serial *serial; /* loop back to the owner of this object */ |
| 157 | }; |
| 158 | |
| 159 | /* baud rate information */ |
| 160 | struct divisor_table_entry { |
| 161 | __u32 BaudRate; |
| 162 | __u16 Divisor; |
| 163 | }; |
| 164 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 165 | /* |
| 166 | * Define table of divisors for Rev A EdgePort/4 hardware |
| 167 | * These assume a 3.6864MHz crystal, the standard /16, and |
| 168 | * MCR.7 = 0. |
| 169 | */ |
| 170 | |
Arjan van de Ven | 4c4c943 | 2005-11-29 09:43:42 +0100 | [diff] [blame] | 171 | static const struct divisor_table_entry divisor_table[] = { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 172 | { 50, 4608}, |
| 173 | { 75, 3072}, |
| 174 | { 110, 2095}, /* 2094.545455 => 230450 => .0217 % over */ |
| 175 | { 134, 1713}, /* 1713.011152 => 230398.5 => .00065% under */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | { 150, 1536}, |
| 177 | { 300, 768}, |
| 178 | { 600, 384}, |
| 179 | { 1200, 192}, |
| 180 | { 1800, 128}, |
| 181 | { 2400, 96}, |
| 182 | { 4800, 48}, |
| 183 | { 7200, 32}, |
| 184 | { 9600, 24}, |
| 185 | { 14400, 16}, |
| 186 | { 19200, 12}, |
| 187 | { 38400, 6}, |
| 188 | { 57600, 4}, |
| 189 | { 115200, 2}, |
| 190 | { 230400, 1}, |
| 191 | }; |
| 192 | |
| 193 | /* local variables */ |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 194 | static bool debug; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
Greg Kroah-Hartman | 36ccce4 | 2012-02-28 13:11:51 -0800 | [diff] [blame] | 196 | /* Number of outstanding Command Write Urbs */ |
| 197 | static atomic_t CmdUrbs = ATOMIC_INIT(0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | |
| 199 | |
| 200 | /* local function prototypes */ |
| 201 | |
| 202 | /* function prototypes for all URB callbacks */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 203 | static void edge_interrupt_callback(struct urb *urb); |
| 204 | static void edge_bulk_in_callback(struct urb *urb); |
| 205 | static void edge_bulk_out_data_callback(struct urb *urb); |
| 206 | static void edge_bulk_out_cmd_callback(struct urb *urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | |
| 208 | /* function prototypes for the usbserial callbacks */ |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 209 | static int edge_open(struct tty_struct *tty, struct usb_serial_port *port); |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 210 | static void edge_close(struct usb_serial_port *port); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 211 | static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, |
| 212 | const unsigned char *buf, int count); |
| 213 | static int edge_write_room(struct tty_struct *tty); |
| 214 | static int edge_chars_in_buffer(struct tty_struct *tty); |
| 215 | static void edge_throttle(struct tty_struct *tty); |
| 216 | static void edge_unthrottle(struct tty_struct *tty); |
| 217 | static void edge_set_termios(struct tty_struct *tty, |
| 218 | struct usb_serial_port *port, |
| 219 | struct ktermios *old_termios); |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 220 | static int edge_ioctl(struct tty_struct *tty, |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 221 | unsigned int cmd, unsigned long arg); |
| 222 | static void edge_break(struct tty_struct *tty, int break_state); |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 223 | static int edge_tiocmget(struct tty_struct *tty); |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 224 | static int edge_tiocmset(struct tty_struct *tty, |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 225 | unsigned int set, unsigned int clear); |
Alan Cox | 0bca1b9 | 2010-09-16 18:21:40 +0100 | [diff] [blame] | 226 | static int edge_get_icount(struct tty_struct *tty, |
| 227 | struct serial_icounter_struct *icount); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 228 | static int edge_startup(struct usb_serial *serial); |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 229 | static void edge_disconnect(struct usb_serial *serial); |
| 230 | static void edge_release(struct usb_serial *serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | |
| 232 | #include "io_tables.h" /* all of the devices that this driver supports */ |
| 233 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | /* function prototypes for all of our local functions */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 236 | static void process_rcvd_data(struct edgeport_serial *edge_serial, |
| 237 | unsigned char *buffer, __u16 bufferLength); |
| 238 | static void process_rcvd_status(struct edgeport_serial *edge_serial, |
| 239 | __u8 byte2, __u8 byte3); |
| 240 | static void edge_tty_recv(struct device *dev, struct tty_struct *tty, |
| 241 | unsigned char *data, int length); |
| 242 | static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr); |
| 243 | static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData, |
| 244 | __u8 lsr, __u8 data); |
| 245 | static int send_iosp_ext_cmd(struct edgeport_port *edge_port, __u8 command, |
| 246 | __u8 param); |
| 247 | static int calc_baud_rate_divisor(int baud_rate, int *divisor); |
| 248 | static int send_cmd_write_baud_rate(struct edgeport_port *edge_port, |
| 249 | int baudRate); |
| 250 | static void change_port_settings(struct tty_struct *tty, |
| 251 | struct edgeport_port *edge_port, |
| 252 | struct ktermios *old_termios); |
| 253 | static int send_cmd_write_uart_register(struct edgeport_port *edge_port, |
| 254 | __u8 regNum, __u8 regValue); |
| 255 | static int write_cmd_usb(struct edgeport_port *edge_port, |
| 256 | unsigned char *buffer, int writeLength); |
| 257 | static void send_more_port_data(struct edgeport_serial *edge_serial, |
| 258 | struct edgeport_port *edge_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 260 | static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, |
| 261 | __u16 length, const __u8 *data); |
| 262 | static int rom_read(struct usb_serial *serial, __u16 extAddr, __u16 addr, |
| 263 | __u16 length, __u8 *data); |
| 264 | static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, |
| 265 | __u16 length, const __u8 *data); |
| 266 | static void get_manufacturing_desc(struct edgeport_serial *edge_serial); |
| 267 | static void get_boot_desc(struct edgeport_serial *edge_serial); |
| 268 | static void load_application_firmware(struct edgeport_serial *edge_serial); |
| 269 | |
| 270 | static void unicode_to_ascii(char *string, int buflen, |
| 271 | __le16 *unicode, int unicode_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | |
| 273 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 274 | /* ************************************************************************ */ |
| 275 | /* ************************************************************************ */ |
| 276 | /* ************************************************************************ */ |
| 277 | /* ************************************************************************ */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | |
| 279 | /************************************************************************ |
| 280 | * * |
| 281 | * update_edgeport_E2PROM() Compare current versions of * |
| 282 | * Boot ROM and Manufacture * |
| 283 | * Descriptors with versions * |
| 284 | * embedded in this driver * |
| 285 | * * |
| 286 | ************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 287 | static void update_edgeport_E2PROM(struct edgeport_serial *edge_serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | { |
| 289 | __u32 BootCurVer; |
| 290 | __u32 BootNewVer; |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 291 | __u8 BootMajorVersion; |
| 292 | __u8 BootMinorVersion; |
| 293 | __u16 BootBuildNumber; |
| 294 | __u32 Bootaddr; |
| 295 | const struct ihex_binrec *rec; |
| 296 | const struct firmware *fw; |
| 297 | const char *fw_name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | int response; |
| 299 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | switch (edge_serial->product_info.iDownloadFile) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 301 | case EDGE_DOWNLOAD_FILE_I930: |
| 302 | fw_name = "edgeport/boot.fw"; |
| 303 | break; |
| 304 | case EDGE_DOWNLOAD_FILE_80251: |
| 305 | fw_name = "edgeport/boot2.fw"; |
| 306 | break; |
| 307 | default: |
| 308 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | } |
| 310 | |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 311 | response = request_ihex_firmware(&fw, fw_name, |
| 312 | &edge_serial->serial->dev->dev); |
| 313 | if (response) { |
| 314 | printk(KERN_ERR "Failed to load image \"%s\" err %d\n", |
| 315 | fw_name, response); |
| 316 | return; |
| 317 | } |
| 318 | |
| 319 | rec = (const struct ihex_binrec *)fw->data; |
| 320 | BootMajorVersion = rec->data[0]; |
| 321 | BootMinorVersion = rec->data[1]; |
| 322 | BootBuildNumber = (rec->data[2] << 8) | rec->data[3]; |
| 323 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 324 | /* Check Boot Image Version */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | BootCurVer = (edge_serial->boot_descriptor.MajorVersion << 24) + |
| 326 | (edge_serial->boot_descriptor.MinorVersion << 16) + |
| 327 | le16_to_cpu(edge_serial->boot_descriptor.BuildNumber); |
| 328 | |
| 329 | BootNewVer = (BootMajorVersion << 24) + |
| 330 | (BootMinorVersion << 16) + |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 331 | BootBuildNumber; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | |
| 333 | dbg("Current Boot Image version %d.%d.%d", |
| 334 | edge_serial->boot_descriptor.MajorVersion, |
| 335 | edge_serial->boot_descriptor.MinorVersion, |
| 336 | le16_to_cpu(edge_serial->boot_descriptor.BuildNumber)); |
| 337 | |
| 338 | |
| 339 | if (BootNewVer > BootCurVer) { |
| 340 | dbg("**Update Boot Image from %d.%d.%d to %d.%d.%d", |
| 341 | edge_serial->boot_descriptor.MajorVersion, |
| 342 | edge_serial->boot_descriptor.MinorVersion, |
| 343 | le16_to_cpu(edge_serial->boot_descriptor.BuildNumber), |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 344 | BootMajorVersion, BootMinorVersion, BootBuildNumber); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | |
| 346 | dbg("Downloading new Boot Image"); |
| 347 | |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 348 | for (rec = ihex_next_binrec(rec); rec; |
| 349 | rec = ihex_next_binrec(rec)) { |
| 350 | Bootaddr = be32_to_cpu(rec->addr); |
| 351 | response = rom_write(edge_serial->serial, |
| 352 | Bootaddr >> 16, |
| 353 | Bootaddr & 0xFFFF, |
| 354 | be16_to_cpu(rec->len), |
| 355 | &rec->data[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | if (response < 0) { |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 357 | dev_err(&edge_serial->serial->dev->dev, |
| 358 | "rom_write failed (%x, %x, %d)\n", |
| 359 | Bootaddr >> 16, Bootaddr & 0xFFFF, |
| 360 | be16_to_cpu(rec->len)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | break; |
| 362 | } |
| 363 | } |
| 364 | } else { |
| 365 | dbg("Boot Image -- already up to date"); |
| 366 | } |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 367 | release_firmware(fw); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | } |
| 369 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | #if 0 |
| 371 | /************************************************************************ |
| 372 | * |
| 373 | * Get string descriptor from device |
| 374 | * |
| 375 | ************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 376 | static int get_string_desc(struct usb_device *dev, int Id, |
| 377 | struct usb_string_descriptor **pRetDesc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | { |
| 379 | struct usb_string_descriptor StringDesc; |
| 380 | struct usb_string_descriptor *pStringDesc; |
| 381 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 382 | dbg("%s - USB String ID = %d", __func__, Id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 384 | if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc, |
| 385 | sizeof(StringDesc))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 388 | pStringDesc = kmalloc(StringDesc.bLength, GFP_KERNEL); |
| 389 | if (!pStringDesc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | return -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 392 | if (!usb_get_descriptor(dev, USB_DT_STRING, Id, pStringDesc, |
| 393 | StringDesc.bLength)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | kfree(pStringDesc); |
| 395 | return -1; |
| 396 | } |
| 397 | |
| 398 | *pRetDesc = pStringDesc; |
| 399 | return 0; |
| 400 | } |
| 401 | #endif |
| 402 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 403 | static void dump_product_info(struct edgeport_product_info *product_info) |
| 404 | { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 405 | /* Dump Product Info structure */ |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 406 | dbg("**Product Information:"); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 407 | dbg(" ProductId %x", product_info->ProductId); |
| 408 | dbg(" NumPorts %d", product_info->NumPorts); |
| 409 | dbg(" ProdInfoVer %d", product_info->ProdInfoVer); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 410 | dbg(" IsServer %d", product_info->IsServer); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 411 | dbg(" IsRS232 %d", product_info->IsRS232); |
| 412 | dbg(" IsRS422 %d", product_info->IsRS422); |
| 413 | dbg(" IsRS485 %d", product_info->IsRS485); |
| 414 | dbg(" RomSize %d", product_info->RomSize); |
| 415 | dbg(" RamSize %d", product_info->RamSize); |
| 416 | dbg(" CpuRev %x", product_info->CpuRev); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 417 | dbg(" BoardRev %x", product_info->BoardRev); |
| 418 | dbg(" BootMajorVersion %d.%d.%d", product_info->BootMajorVersion, |
| 419 | product_info->BootMinorVersion, |
| 420 | le16_to_cpu(product_info->BootBuildNumber)); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 421 | dbg(" FirmwareMajorVersion %d.%d.%d", |
| 422 | product_info->FirmwareMajorVersion, |
| 423 | product_info->FirmwareMinorVersion, |
| 424 | le16_to_cpu(product_info->FirmwareBuildNumber)); |
| 425 | dbg(" ManufactureDescDate %d/%d/%d", |
| 426 | product_info->ManufactureDescDate[0], |
| 427 | product_info->ManufactureDescDate[1], |
| 428 | product_info->ManufactureDescDate[2]+1900); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 429 | dbg(" iDownloadFile 0x%x", product_info->iDownloadFile); |
| 430 | dbg(" EpicVer %d", product_info->EpicVer); |
| 431 | } |
| 432 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | static void get_product_info(struct edgeport_serial *edge_serial) |
| 434 | { |
| 435 | struct edgeport_product_info *product_info = &edge_serial->product_info; |
| 436 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 437 | memset(product_info, 0, sizeof(struct edgeport_product_info)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 439 | product_info->ProductId = (__u16)(le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct) & ~ION_DEVICE_ID_80251_NETCHIP); |
| 440 | product_info->NumPorts = edge_serial->manuf_descriptor.NumPorts; |
| 441 | product_info->ProdInfoVer = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 443 | product_info->RomSize = edge_serial->manuf_descriptor.RomSize; |
| 444 | product_info->RamSize = edge_serial->manuf_descriptor.RamSize; |
| 445 | product_info->CpuRev = edge_serial->manuf_descriptor.CpuRev; |
| 446 | product_info->BoardRev = edge_serial->manuf_descriptor.BoardRev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 448 | product_info->BootMajorVersion = |
| 449 | edge_serial->boot_descriptor.MajorVersion; |
| 450 | product_info->BootMinorVersion = |
| 451 | edge_serial->boot_descriptor.MinorVersion; |
| 452 | product_info->BootBuildNumber = |
| 453 | edge_serial->boot_descriptor.BuildNumber; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 455 | memcpy(product_info->ManufactureDescDate, |
| 456 | edge_serial->manuf_descriptor.DescDate, |
| 457 | sizeof(edge_serial->manuf_descriptor.DescDate)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 459 | /* check if this is 2nd generation hardware */ |
| 460 | if (le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct) |
| 461 | & ION_DEVICE_ID_80251_NETCHIP) |
| 462 | product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_80251; |
| 463 | else |
| 464 | product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_I930; |
| 465 | |
| 466 | /* Determine Product type and set appropriate flags */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | switch (DEVICE_ID_FROM_USB_PRODUCT_ID(product_info->ProductId)) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 468 | case ION_DEVICE_ID_EDGEPORT_COMPATIBLE: |
| 469 | case ION_DEVICE_ID_EDGEPORT_4T: |
| 470 | case ION_DEVICE_ID_EDGEPORT_4: |
| 471 | case ION_DEVICE_ID_EDGEPORT_2: |
| 472 | case ION_DEVICE_ID_EDGEPORT_8_DUAL_CPU: |
| 473 | case ION_DEVICE_ID_EDGEPORT_8: |
| 474 | case ION_DEVICE_ID_EDGEPORT_421: |
| 475 | case ION_DEVICE_ID_EDGEPORT_21: |
| 476 | case ION_DEVICE_ID_EDGEPORT_2_DIN: |
| 477 | case ION_DEVICE_ID_EDGEPORT_4_DIN: |
| 478 | case ION_DEVICE_ID_EDGEPORT_16_DUAL_CPU: |
| 479 | product_info->IsRS232 = 1; |
| 480 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 482 | case ION_DEVICE_ID_EDGEPORT_2I: /* Edgeport/2 RS422/RS485 */ |
| 483 | product_info->IsRS422 = 1; |
| 484 | product_info->IsRS485 = 1; |
| 485 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 487 | case ION_DEVICE_ID_EDGEPORT_8I: /* Edgeport/4 RS422 */ |
| 488 | case ION_DEVICE_ID_EDGEPORT_4I: /* Edgeport/4 RS422 */ |
| 489 | product_info->IsRS422 = 1; |
| 490 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | } |
| 492 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 493 | dump_product_info(product_info); |
| 494 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 496 | static int get_epic_descriptor(struct edgeport_serial *ep) |
| 497 | { |
| 498 | int result; |
| 499 | struct usb_serial *serial = ep->serial; |
| 500 | struct edgeport_product_info *product_info = &ep->product_info; |
| 501 | struct edge_compatibility_descriptor *epic = &ep->epic_descriptor; |
| 502 | struct edge_compatibility_bits *bits; |
| 503 | |
| 504 | ep->is_epic = 0; |
| 505 | result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
| 506 | USB_REQUEST_ION_GET_EPIC_DESC, |
| 507 | 0xC0, 0x00, 0x00, |
| 508 | &ep->epic_descriptor, |
| 509 | sizeof(struct edge_compatibility_descriptor), |
| 510 | 300); |
| 511 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 512 | dbg("%s result = %d", __func__, result); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 513 | |
| 514 | if (result > 0) { |
| 515 | ep->is_epic = 1; |
| 516 | memset(product_info, 0, sizeof(struct edgeport_product_info)); |
| 517 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 518 | product_info->NumPorts = epic->NumPorts; |
| 519 | product_info->ProdInfoVer = 0; |
| 520 | product_info->FirmwareMajorVersion = epic->MajorVersion; |
| 521 | product_info->FirmwareMinorVersion = epic->MinorVersion; |
| 522 | product_info->FirmwareBuildNumber = epic->BuildNumber; |
| 523 | product_info->iDownloadFile = epic->iDownloadFile; |
| 524 | product_info->EpicVer = epic->EpicVer; |
| 525 | product_info->Epic = epic->Supports; |
| 526 | product_info->ProductId = ION_DEVICE_ID_EDGEPORT_COMPATIBLE; |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 527 | dump_product_info(product_info); |
| 528 | |
| 529 | bits = &ep->epic_descriptor.Supports; |
| 530 | dbg("**EPIC descriptor:"); |
| 531 | dbg(" VendEnableSuspend: %s", bits->VendEnableSuspend ? "TRUE": "FALSE"); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 532 | dbg(" IOSPOpen : %s", bits->IOSPOpen ? "TRUE": "FALSE"); |
| 533 | dbg(" IOSPClose : %s", bits->IOSPClose ? "TRUE": "FALSE"); |
| 534 | dbg(" IOSPChase : %s", bits->IOSPChase ? "TRUE": "FALSE"); |
| 535 | dbg(" IOSPSetRxFlow : %s", bits->IOSPSetRxFlow ? "TRUE": "FALSE"); |
| 536 | dbg(" IOSPSetTxFlow : %s", bits->IOSPSetTxFlow ? "TRUE": "FALSE"); |
| 537 | dbg(" IOSPSetXChar : %s", bits->IOSPSetXChar ? "TRUE": "FALSE"); |
| 538 | dbg(" IOSPRxCheck : %s", bits->IOSPRxCheck ? "TRUE": "FALSE"); |
| 539 | dbg(" IOSPSetClrBreak : %s", bits->IOSPSetClrBreak ? "TRUE": "FALSE"); |
| 540 | dbg(" IOSPWriteMCR : %s", bits->IOSPWriteMCR ? "TRUE": "FALSE"); |
| 541 | dbg(" IOSPWriteLCR : %s", bits->IOSPWriteLCR ? "TRUE": "FALSE"); |
| 542 | dbg(" IOSPSetBaudRate : %s", bits->IOSPSetBaudRate ? "TRUE": "FALSE"); |
| 543 | dbg(" TrueEdgeport : %s", bits->TrueEdgeport ? "TRUE": "FALSE"); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 544 | } |
| 545 | |
| 546 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | } |
| 548 | |
| 549 | |
| 550 | /************************************************************************/ |
| 551 | /************************************************************************/ |
| 552 | /* U S B C A L L B A C K F U N C T I O N S */ |
| 553 | /* U S B C A L L B A C K F U N C T I O N S */ |
| 554 | /************************************************************************/ |
| 555 | /************************************************************************/ |
| 556 | |
| 557 | /***************************************************************************** |
| 558 | * edge_interrupt_callback |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 559 | * this is the callback function for when we have received data on the |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | * interrupt endpoint. |
| 561 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 562 | static void edge_interrupt_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 564 | struct edgeport_serial *edge_serial = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | struct edgeport_port *edge_port; |
| 566 | struct usb_serial_port *port; |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 567 | struct tty_struct *tty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | unsigned char *data = urb->transfer_buffer; |
| 569 | int length = urb->actual_length; |
| 570 | int bytes_avail; |
| 571 | int position; |
| 572 | int txCredits; |
| 573 | int portNumber; |
| 574 | int result; |
Greg Kroah-Hartman | 2a393f5 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 575 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 577 | dbg("%s", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | |
Greg Kroah-Hartman | 2a393f5 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 579 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | case 0: |
| 581 | /* success */ |
| 582 | break; |
| 583 | case -ECONNRESET: |
| 584 | case -ENOENT: |
| 585 | case -ESHUTDOWN: |
| 586 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 2a393f5 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 587 | dbg("%s - urb shutting down with status: %d", |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 588 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | return; |
| 590 | default: |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 591 | dbg("%s - nonzero urb status received: %d", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | goto exit; |
| 593 | } |
| 594 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 595 | /* process this interrupt-read even if there are no ports open */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | if (length) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 597 | usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, |
| 598 | __func__, length, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | |
| 600 | if (length > 1) { |
| 601 | bytes_avail = data[0] | (data[1] << 8); |
| 602 | if (bytes_avail) { |
| 603 | spin_lock(&edge_serial->es_lock); |
| 604 | edge_serial->rxBytesAvail += bytes_avail; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 605 | dbg("%s - bytes_avail=%d, rxBytesAvail=%d, read_in_progress=%d", __func__, bytes_avail, edge_serial->rxBytesAvail, edge_serial->read_in_progress); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | |
| 607 | if (edge_serial->rxBytesAvail > 0 && |
| 608 | !edge_serial->read_in_progress) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 609 | dbg("%s - posting a read", __func__); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 610 | edge_serial->read_in_progress = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 612 | /* we have pending bytes on the |
| 613 | bulk in pipe, send a request */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | result = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC); |
| 615 | if (result) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 616 | dev_err(&edge_serial->serial->dev->dev, "%s - usb_submit_urb(read bulk) failed with result = %d\n", __func__, result); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 617 | edge_serial->read_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | } |
| 619 | } |
| 620 | spin_unlock(&edge_serial->es_lock); |
| 621 | } |
| 622 | } |
| 623 | /* grab the txcredits for the ports if available */ |
| 624 | position = 2; |
| 625 | portNumber = 0; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 626 | while ((position < length) && |
| 627 | (portNumber < edge_serial->serial->num_ports)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | txCredits = data[position] | (data[position+1] << 8); |
| 629 | if (txCredits) { |
| 630 | port = edge_serial->serial->port[portNumber]; |
| 631 | edge_port = usb_get_serial_port_data(port); |
| 632 | if (edge_port->open) { |
| 633 | spin_lock(&edge_port->ep_lock); |
| 634 | edge_port->txCredits += txCredits; |
| 635 | spin_unlock(&edge_port->ep_lock); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 636 | dbg("%s - txcredits for port%d = %d", |
| 637 | __func__, portNumber, |
| 638 | edge_port->txCredits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 640 | /* tell the tty driver that something |
| 641 | has changed */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 642 | tty = tty_port_tty_get( |
| 643 | &edge_port->port->port); |
| 644 | if (tty) { |
| 645 | tty_wakeup(tty); |
| 646 | tty_kref_put(tty); |
| 647 | } |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 648 | /* Since we have more credit, check |
| 649 | if more data can be sent */ |
| 650 | send_more_port_data(edge_serial, |
| 651 | edge_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | } |
| 653 | } |
| 654 | position += 2; |
| 655 | ++portNumber; |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | exit: |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 660 | result = usb_submit_urb(urb, GFP_ATOMIC); |
| 661 | if (result) |
| 662 | dev_err(&urb->dev->dev, |
| 663 | "%s - Error %d submitting control urb\n", |
| 664 | __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | |
| 668 | /***************************************************************************** |
| 669 | * edge_bulk_in_callback |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 670 | * this is the callback function for when we have received data on the |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | * bulk in endpoint. |
| 672 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 673 | static void edge_bulk_in_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 675 | struct edgeport_serial *edge_serial = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | unsigned char *data = urb->transfer_buffer; |
Greg Kroah-Hartman | 2a393f5 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 677 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | __u16 raw_data_length; |
Greg Kroah-Hartman | 2a393f5 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 679 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 681 | dbg("%s", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | |
Greg Kroah-Hartman | 2a393f5 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 683 | if (status) { |
| 684 | dbg("%s - nonzero read bulk status received: %d", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 685 | __func__, status); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 686 | edge_serial->read_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | return; |
| 688 | } |
| 689 | |
| 690 | if (urb->actual_length == 0) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 691 | dbg("%s - read bulk callback with no data", __func__); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 692 | edge_serial->read_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | return; |
| 694 | } |
| 695 | |
| 696 | raw_data_length = urb->actual_length; |
| 697 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 698 | usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, |
| 699 | __func__, raw_data_length, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | |
| 701 | spin_lock(&edge_serial->es_lock); |
| 702 | |
| 703 | /* decrement our rxBytes available by the number that we just got */ |
| 704 | edge_serial->rxBytesAvail -= raw_data_length; |
| 705 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 706 | dbg("%s - Received = %d, rxBytesAvail %d", __func__, |
| 707 | raw_data_length, edge_serial->rxBytesAvail); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 709 | process_rcvd_data(edge_serial, data, urb->actual_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | |
| 711 | /* check to see if there's any more data for us to read */ |
| 712 | if (edge_serial->rxBytesAvail > 0) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 713 | dbg("%s - posting a read", __func__); |
Greg Kroah-Hartman | 2a393f5 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 714 | retval = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC); |
| 715 | if (retval) { |
| 716 | dev_err(&urb->dev->dev, |
| 717 | "%s - usb_submit_urb(read bulk) failed, " |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 718 | "retval = %d\n", __func__, retval); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 719 | edge_serial->read_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | } |
| 721 | } else { |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 722 | edge_serial->read_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | } |
| 724 | |
| 725 | spin_unlock(&edge_serial->es_lock); |
| 726 | } |
| 727 | |
| 728 | |
| 729 | /***************************************************************************** |
| 730 | * edge_bulk_out_data_callback |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 731 | * this is the callback function for when we have finished sending |
| 732 | * serial data on the bulk out endpoint. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 734 | static void edge_bulk_out_data_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 736 | struct edgeport_port *edge_port = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | struct tty_struct *tty; |
Greg Kroah-Hartman | 2a393f5 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 738 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 740 | dbg("%s", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | |
Greg Kroah-Hartman | 2a393f5 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 742 | if (status) { |
| 743 | dbg("%s - nonzero write bulk status received: %d", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 744 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | } |
| 746 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 747 | tty = tty_port_tty_get(&edge_port->port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | |
| 749 | if (tty && edge_port->open) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 750 | /* let the tty driver wakeup if it has a special |
| 751 | write_wakeup function */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | tty_wakeup(tty); |
| 753 | } |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 754 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 756 | /* Release the Write URB */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 757 | edge_port->write_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 759 | /* Check if more data needs to be sent */ |
| 760 | send_more_port_data((struct edgeport_serial *) |
| 761 | (usb_get_serial_data(edge_port->port->serial)), edge_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | |
| 765 | /***************************************************************************** |
| 766 | * BulkOutCmdCallback |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 767 | * this is the callback function for when we have finished sending a |
| 768 | * command on the bulk out endpoint. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 770 | static void edge_bulk_out_cmd_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 772 | struct edgeport_port *edge_port = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | struct tty_struct *tty; |
| 774 | int status = urb->status; |
| 775 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 776 | dbg("%s", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | |
Oliver Neukum | 96c706e | 2007-03-15 15:27:17 +0100 | [diff] [blame] | 778 | atomic_dec(&CmdUrbs); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 779 | dbg("%s - FREE URB %p (outstanding %d)", __func__, |
| 780 | urb, atomic_read(&CmdUrbs)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | |
| 782 | |
| 783 | /* clean up the transfer buffer */ |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 784 | kfree(urb->transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | |
| 786 | /* Free the command urb */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 787 | usb_free_urb(urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | |
| 789 | if (status) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 790 | dbg("%s - nonzero write bulk status received: %d", |
| 791 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | return; |
| 793 | } |
| 794 | |
| 795 | /* Get pointer to tty */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 796 | tty = tty_port_tty_get(&edge_port->port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | |
| 798 | /* tell the tty driver that something has changed */ |
| 799 | if (tty && edge_port->open) |
| 800 | tty_wakeup(tty); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 801 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | |
| 803 | /* we have completed the command */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 804 | edge_port->commandPending = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | wake_up(&edge_port->wait_command); |
| 806 | } |
| 807 | |
| 808 | |
| 809 | /***************************************************************************** |
| 810 | * Driver tty interface functions |
| 811 | *****************************************************************************/ |
| 812 | |
| 813 | /***************************************************************************** |
| 814 | * SerialOpen |
| 815 | * this function is called by the tty driver when a port is opened |
| 816 | * If successful, we return 0 |
| 817 | * Otherwise we return a negative error number. |
| 818 | *****************************************************************************/ |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 819 | static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | { |
| 821 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 822 | struct usb_serial *serial; |
| 823 | struct edgeport_serial *edge_serial; |
| 824 | int response; |
| 825 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 826 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | |
| 828 | if (edge_port == NULL) |
| 829 | return -ENODEV; |
| 830 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 831 | /* see if we've set up our endpoint info yet (can't set it up |
| 832 | in edge_startup as the structures were not set up at that time.) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | serial = port->serial; |
| 834 | edge_serial = usb_get_serial_data(serial); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 835 | if (edge_serial == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | if (edge_serial->interrupt_in_buffer == NULL) { |
| 838 | struct usb_serial_port *port0 = serial->port[0]; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 839 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | /* not set up yet, so do it now */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 841 | edge_serial->interrupt_in_buffer = |
| 842 | port0->interrupt_in_buffer; |
| 843 | edge_serial->interrupt_in_endpoint = |
| 844 | port0->interrupt_in_endpointAddress; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | edge_serial->interrupt_read_urb = port0->interrupt_in_urb; |
| 846 | edge_serial->bulk_in_buffer = port0->bulk_in_buffer; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 847 | edge_serial->bulk_in_endpoint = |
| 848 | port0->bulk_in_endpointAddress; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | edge_serial->read_urb = port0->read_urb; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 850 | edge_serial->bulk_out_endpoint = |
| 851 | port0->bulk_out_endpointAddress; |
| 852 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | /* set up our interrupt urb */ |
| 854 | usb_fill_int_urb(edge_serial->interrupt_read_urb, |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 855 | serial->dev, |
| 856 | usb_rcvintpipe(serial->dev, |
| 857 | port0->interrupt_in_endpointAddress), |
| 858 | port0->interrupt_in_buffer, |
| 859 | edge_serial->interrupt_read_urb->transfer_buffer_length, |
| 860 | edge_interrupt_callback, edge_serial, |
| 861 | edge_serial->interrupt_read_urb->interval); |
| 862 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | /* set up our bulk in urb */ |
| 864 | usb_fill_bulk_urb(edge_serial->read_urb, serial->dev, |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 865 | usb_rcvbulkpipe(serial->dev, |
| 866 | port0->bulk_in_endpointAddress), |
| 867 | port0->bulk_in_buffer, |
| 868 | edge_serial->read_urb->transfer_buffer_length, |
| 869 | edge_bulk_in_callback, edge_serial); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 870 | edge_serial->read_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 871 | |
| 872 | /* start interrupt read for this edgeport |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 873 | * this interrupt will continue as long |
| 874 | * as the edgeport is connected */ |
| 875 | response = usb_submit_urb(edge_serial->interrupt_read_urb, |
| 876 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | if (response) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 878 | dev_err(&port->dev, |
| 879 | "%s - Error %d submitting control urb\n", |
| 880 | __func__, response); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | } |
| 882 | } |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 883 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | /* initialize our wait queues */ |
| 885 | init_waitqueue_head(&edge_port->wait_open); |
| 886 | init_waitqueue_head(&edge_port->wait_chase); |
| 887 | init_waitqueue_head(&edge_port->delta_msr_wait); |
| 888 | init_waitqueue_head(&edge_port->wait_command); |
| 889 | |
| 890 | /* initialize our icount structure */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 891 | memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | |
| 893 | /* initialize our port settings */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 894 | edge_port->txCredits = 0; /* Can't send any data yet */ |
| 895 | /* Must always set this bit to enable ints! */ |
| 896 | edge_port->shadowMCR = MCR_MASTER_IE; |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 897 | edge_port->chaseResponsePending = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | |
| 899 | /* send a open port command */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 900 | edge_port->openPending = true; |
| 901 | edge_port->open = false; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 902 | response = send_iosp_ext_cmd(edge_port, IOSP_CMD_OPEN_PORT, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | |
| 904 | if (response < 0) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 905 | dev_err(&port->dev, "%s - error sending open port command\n", |
| 906 | __func__); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 907 | edge_port->openPending = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | return -ENODEV; |
| 909 | } |
| 910 | |
| 911 | /* now wait for the port to be completely opened */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 912 | wait_event_timeout(edge_port->wait_open, !edge_port->openPending, |
| 913 | OPEN_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 914 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 915 | if (!edge_port->open) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | /* open timed out */ |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 917 | dbg("%s - open timedout", __func__); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 918 | edge_port->openPending = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | return -ENODEV; |
| 920 | } |
| 921 | |
| 922 | /* create the txfifo */ |
| 923 | edge_port->txfifo.head = 0; |
| 924 | edge_port->txfifo.tail = 0; |
| 925 | edge_port->txfifo.count = 0; |
| 926 | edge_port->txfifo.size = edge_port->maxTxCredits; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 927 | edge_port->txfifo.fifo = kmalloc(edge_port->maxTxCredits, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | |
| 929 | if (!edge_port->txfifo.fifo) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 930 | dbg("%s - no memory", __func__); |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 931 | edge_close(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | return -ENOMEM; |
| 933 | } |
| 934 | |
| 935 | /* Allocate a URB for the write */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 936 | edge_port->write_urb = usb_alloc_urb(0, GFP_KERNEL); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 937 | edge_port->write_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 938 | |
| 939 | if (!edge_port->write_urb) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 940 | dbg("%s - no memory", __func__); |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 941 | edge_close(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | return -ENOMEM; |
| 943 | } |
| 944 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 945 | dbg("%s(%d) - Initialize TX fifo to %d bytes", |
| 946 | __func__, port->number, edge_port->maxTxCredits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 948 | dbg("%s exited", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 949 | |
| 950 | return 0; |
| 951 | } |
| 952 | |
| 953 | |
| 954 | /************************************************************************ |
| 955 | * |
| 956 | * block_until_chase_response |
| 957 | * |
| 958 | * This function will block the close until one of the following: |
| 959 | * 1. Response to our Chase comes from Edgeport |
Joe Perches | dc0d5c1 | 2007-12-17 11:40:18 -0800 | [diff] [blame] | 960 | * 2. A timeout of 10 seconds without activity has expired |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | * (1K of Edgeport data @ 2400 baud ==> 4 sec to empty) |
| 962 | * |
| 963 | ************************************************************************/ |
| 964 | static void block_until_chase_response(struct edgeport_port *edge_port) |
| 965 | { |
| 966 | DEFINE_WAIT(wait); |
| 967 | __u16 lastCredits; |
| 968 | int timeout = 1*HZ; |
| 969 | int loop = 10; |
| 970 | |
| 971 | while (1) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 972 | /* Save Last credits */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 973 | lastCredits = edge_port->txCredits; |
| 974 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 975 | /* Did we get our Chase response */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 976 | if (!edge_port->chaseResponsePending) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 977 | dbg("%s - Got Chase Response", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 979 | /* did we get all of our credit back? */ |
| 980 | if (edge_port->txCredits == edge_port->maxTxCredits) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 981 | dbg("%s - Got all credits", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | return; |
| 983 | } |
| 984 | } |
| 985 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 986 | /* Block the thread for a while */ |
| 987 | prepare_to_wait(&edge_port->wait_chase, &wait, |
| 988 | TASK_UNINTERRUPTIBLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | schedule_timeout(timeout); |
| 990 | finish_wait(&edge_port->wait_chase, &wait); |
| 991 | |
| 992 | if (lastCredits == edge_port->txCredits) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 993 | /* No activity.. count down. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | loop--; |
| 995 | if (loop == 0) { |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 996 | edge_port->chaseResponsePending = false; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 997 | dbg("%s - Chase TIMEOUT", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 998 | return; |
| 999 | } |
| 1000 | } else { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1001 | /* Reset timeout value back to 10 seconds */ |
| 1002 | dbg("%s - Last %d, Current %d", __func__, |
| 1003 | lastCredits, edge_port->txCredits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | loop = 10; |
| 1005 | } |
| 1006 | } |
| 1007 | } |
| 1008 | |
| 1009 | |
| 1010 | /************************************************************************ |
| 1011 | * |
| 1012 | * block_until_tx_empty |
| 1013 | * |
| 1014 | * This function will block the close until one of the following: |
| 1015 | * 1. TX count are 0 |
| 1016 | * 2. The edgeport has stopped |
Joe Perches | dc0d5c1 | 2007-12-17 11:40:18 -0800 | [diff] [blame] | 1017 | * 3. A timeout of 3 seconds without activity has expired |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | * |
| 1019 | ************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1020 | static void block_until_tx_empty(struct edgeport_port *edge_port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | { |
| 1022 | DEFINE_WAIT(wait); |
| 1023 | struct TxFifo *fifo = &edge_port->txfifo; |
| 1024 | __u32 lastCount; |
| 1025 | int timeout = HZ/10; |
| 1026 | int loop = 30; |
| 1027 | |
| 1028 | while (1) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1029 | /* Save Last count */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1030 | lastCount = fifo->count; |
| 1031 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1032 | /* Is the Edgeport Buffer empty? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | if (lastCount == 0) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1034 | dbg("%s - TX Buffer Empty", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | return; |
| 1036 | } |
| 1037 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1038 | /* Block the thread for a while */ |
| 1039 | prepare_to_wait(&edge_port->wait_chase, &wait, |
| 1040 | TASK_UNINTERRUPTIBLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | schedule_timeout(timeout); |
| 1042 | finish_wait(&edge_port->wait_chase, &wait); |
| 1043 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1044 | dbg("%s wait", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | |
| 1046 | if (lastCount == fifo->count) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1047 | /* No activity.. count down. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | loop--; |
| 1049 | if (loop == 0) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1050 | dbg("%s - TIMEOUT", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | return; |
| 1052 | } |
| 1053 | } else { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1054 | /* Reset timeout value back to seconds */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1055 | loop = 30; |
| 1056 | } |
| 1057 | } |
| 1058 | } |
| 1059 | |
| 1060 | |
| 1061 | /***************************************************************************** |
| 1062 | * edge_close |
| 1063 | * this function is called by the tty driver when a port is closed |
| 1064 | *****************************************************************************/ |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 1065 | static void edge_close(struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1066 | { |
| 1067 | struct edgeport_serial *edge_serial; |
| 1068 | struct edgeport_port *edge_port; |
| 1069 | int status; |
| 1070 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1071 | dbg("%s - port %d", __func__, port->number); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1072 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | edge_serial = usb_get_serial_data(port->serial); |
| 1074 | edge_port = usb_get_serial_port_data(port); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1075 | if (edge_serial == NULL || edge_port == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1076 | return; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1077 | |
| 1078 | /* block until tx is empty */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | block_until_tx_empty(edge_port); |
| 1080 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1081 | edge_port->closePending = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1083 | if ((!edge_serial->is_epic) || |
| 1084 | ((edge_serial->is_epic) && |
| 1085 | (edge_serial->epic_descriptor.Supports.IOSPChase))) { |
| 1086 | /* flush and chase */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1087 | edge_port->chaseResponsePending = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1089 | dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1090 | status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0); |
| 1091 | if (status == 0) |
| 1092 | /* block until chase finished */ |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1093 | block_until_chase_response(edge_port); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1094 | else |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1095 | edge_port->chaseResponsePending = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | } |
| 1097 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1098 | if ((!edge_serial->is_epic) || |
| 1099 | ((edge_serial->is_epic) && |
| 1100 | (edge_serial->epic_descriptor.Supports.IOSPClose))) { |
| 1101 | /* close the port */ |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1102 | dbg("%s - Sending IOSP_CMD_CLOSE_PORT", __func__); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1103 | send_iosp_ext_cmd(edge_port, IOSP_CMD_CLOSE_PORT, 0); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1104 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1106 | /* port->close = true; */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1107 | edge_port->closePending = false; |
| 1108 | edge_port->open = false; |
| 1109 | edge_port->openPending = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | |
Mariusz Kozlowski | 9a25f44 | 2006-11-08 15:36:29 +0100 | [diff] [blame] | 1111 | usb_kill_urb(edge_port->write_urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | |
| 1113 | if (edge_port->write_urb) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1114 | /* if this urb had a transfer buffer already |
| 1115 | (old transfer) free it */ |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 1116 | kfree(edge_port->write_urb->transfer_buffer); |
| 1117 | usb_free_urb(edge_port->write_urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | edge_port->write_urb = NULL; |
| 1119 | } |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 1120 | kfree(edge_port->txfifo.fifo); |
| 1121 | edge_port->txfifo.fifo = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1122 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1123 | dbg("%s exited", __func__); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1124 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | |
| 1126 | /***************************************************************************** |
| 1127 | * SerialWrite |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1128 | * this function is called by the tty driver when data should be written |
| 1129 | * to the port. |
| 1130 | * If successful, we return the number of bytes written, otherwise we |
| 1131 | * return a negative error number. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1132 | *****************************************************************************/ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1133 | static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, |
| 1134 | const unsigned char *data, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | { |
| 1136 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1137 | struct TxFifo *fifo; |
| 1138 | int copySize; |
| 1139 | int bytesleft; |
| 1140 | int firsthalf; |
| 1141 | int secondhalf; |
| 1142 | unsigned long flags; |
| 1143 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1144 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1145 | |
| 1146 | if (edge_port == NULL) |
| 1147 | return -ENODEV; |
| 1148 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1149 | /* get a pointer to the Tx fifo */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1150 | fifo = &edge_port->txfifo; |
| 1151 | |
| 1152 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 1153 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1154 | /* calculate number of bytes to put in fifo */ |
| 1155 | copySize = min((unsigned int)count, |
| 1156 | (edge_port->txCredits - fifo->count)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1157 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1158 | dbg("%s(%d) of %d byte(s) Fifo room %d -- will copy %d bytes", |
| 1159 | __func__, port->number, count, |
| 1160 | edge_port->txCredits - fifo->count, copySize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1162 | /* catch writes of 0 bytes which the tty driver likes to give us, |
| 1163 | and when txCredits is empty */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1164 | if (copySize == 0) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1165 | dbg("%s - copySize = Zero", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | goto finish_write; |
| 1167 | } |
| 1168 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1169 | /* queue the data |
| 1170 | * since we can never overflow the buffer we do not have to check for a |
| 1171 | * full condition |
| 1172 | * |
| 1173 | * the copy is done is two parts -- first fill to the end of the buffer |
| 1174 | * then copy the reset from the start of the buffer |
| 1175 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | bytesleft = fifo->size - fifo->head; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1177 | firsthalf = min(bytesleft, copySize); |
| 1178 | dbg("%s - copy %d bytes of %d into fifo ", __func__, |
| 1179 | firsthalf, bytesleft); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | |
| 1181 | /* now copy our data */ |
| 1182 | memcpy(&fifo->fifo[fifo->head], data, firsthalf); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1183 | usb_serial_debug_data(debug, &port->dev, __func__, |
| 1184 | firsthalf, &fifo->fifo[fifo->head]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1185 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1186 | /* update the index and size */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | fifo->head += firsthalf; |
| 1188 | fifo->count += firsthalf; |
| 1189 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1190 | /* wrap the index */ |
| 1191 | if (fifo->head == fifo->size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1192 | fifo->head = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1193 | |
| 1194 | secondhalf = copySize-firsthalf; |
| 1195 | |
| 1196 | if (secondhalf) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1197 | dbg("%s - copy rest of data %d", __func__, secondhalf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | memcpy(&fifo->fifo[fifo->head], &data[firsthalf], secondhalf); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1199 | usb_serial_debug_data(debug, &port->dev, __func__, |
| 1200 | secondhalf, &fifo->fifo[fifo->head]); |
| 1201 | /* update the index and size */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | fifo->count += secondhalf; |
| 1203 | fifo->head += secondhalf; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1204 | /* No need to check for wrap since we can not get to end of |
| 1205 | * the fifo in this part |
| 1206 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | } |
| 1208 | |
| 1209 | finish_write: |
| 1210 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1211 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1212 | send_more_port_data((struct edgeport_serial *) |
| 1213 | usb_get_serial_data(port->serial), edge_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1214 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1215 | dbg("%s wrote %d byte(s) TxCredits %d, Fifo %d", __func__, |
| 1216 | copySize, edge_port->txCredits, fifo->count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1217 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1218 | return copySize; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1219 | } |
| 1220 | |
| 1221 | |
| 1222 | /************************************************************************ |
| 1223 | * |
| 1224 | * send_more_port_data() |
| 1225 | * |
| 1226 | * This routine attempts to write additional UART transmit data |
| 1227 | * to a port over the USB bulk pipe. It is called (1) when new |
| 1228 | * data has been written to a port's TxBuffer from higher layers |
| 1229 | * (2) when the peripheral sends us additional TxCredits indicating |
| 1230 | * that it can accept more Tx data for a given port; and (3) when |
| 1231 | * a bulk write completes successfully and we want to see if we |
| 1232 | * can transmit more. |
| 1233 | * |
| 1234 | ************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1235 | static void send_more_port_data(struct edgeport_serial *edge_serial, |
| 1236 | struct edgeport_port *edge_port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1237 | { |
| 1238 | struct TxFifo *fifo = &edge_port->txfifo; |
| 1239 | struct urb *urb; |
| 1240 | unsigned char *buffer; |
| 1241 | int status; |
| 1242 | int count; |
| 1243 | int bytesleft; |
| 1244 | int firsthalf; |
| 1245 | int secondhalf; |
| 1246 | unsigned long flags; |
| 1247 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1248 | dbg("%s(%d)", __func__, edge_port->port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1249 | |
| 1250 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 1251 | |
| 1252 | if (edge_port->write_in_progress || |
| 1253 | !edge_port->open || |
| 1254 | (fifo->count == 0)) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1255 | dbg("%s(%d) EXIT - fifo %d, PendingWrite = %d", |
| 1256 | __func__, edge_port->port->number, |
| 1257 | fifo->count, edge_port->write_in_progress); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | goto exit_send; |
| 1259 | } |
| 1260 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1261 | /* since the amount of data in the fifo will always fit into the |
| 1262 | * edgeport buffer we do not need to check the write length |
| 1263 | * |
| 1264 | * Do we have enough credits for this port to make it worthwhile |
| 1265 | * to bother queueing a write. If it's too small, say a few bytes, |
| 1266 | * it's better to wait for more credits so we can do a larger write. |
| 1267 | */ |
| 1268 | if (edge_port->txCredits < EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(edge_port->maxTxCredits, EDGE_FW_BULK_MAX_PACKET_SIZE)) { |
| 1269 | dbg("%s(%d) Not enough credit - fifo %d TxCredit %d", |
| 1270 | __func__, edge_port->port->number, fifo->count, |
| 1271 | edge_port->txCredits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | goto exit_send; |
| 1273 | } |
| 1274 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1275 | /* lock this write */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1276 | edge_port->write_in_progress = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1277 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1278 | /* get a pointer to the write_urb */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1279 | urb = edge_port->write_urb; |
| 1280 | |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 1281 | /* make sure transfer buffer is freed */ |
| 1282 | kfree(urb->transfer_buffer); |
| 1283 | urb->transfer_buffer = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1284 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1285 | /* build the data header for the buffer and port that we are about |
| 1286 | to send out */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1287 | count = fifo->count; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1288 | buffer = kmalloc(count+2, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1289 | if (buffer == NULL) { |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1290 | dev_err_console(edge_port->port, |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1291 | "%s - no more kernel memory...\n", __func__); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1292 | edge_port->write_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1293 | goto exit_send; |
| 1294 | } |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1295 | buffer[0] = IOSP_BUILD_DATA_HDR1(edge_port->port->number |
| 1296 | - edge_port->port->serial->minor, count); |
| 1297 | buffer[1] = IOSP_BUILD_DATA_HDR2(edge_port->port->number |
| 1298 | - edge_port->port->serial->minor, count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1299 | |
| 1300 | /* now copy our data */ |
| 1301 | bytesleft = fifo->size - fifo->tail; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1302 | firsthalf = min(bytesleft, count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1303 | memcpy(&buffer[2], &fifo->fifo[fifo->tail], firsthalf); |
| 1304 | fifo->tail += firsthalf; |
| 1305 | fifo->count -= firsthalf; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1306 | if (fifo->tail == fifo->size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | fifo->tail = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1308 | |
| 1309 | secondhalf = count-firsthalf; |
| 1310 | if (secondhalf) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1311 | memcpy(&buffer[2+firsthalf], &fifo->fifo[fifo->tail], |
| 1312 | secondhalf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1313 | fifo->tail += secondhalf; |
| 1314 | fifo->count -= secondhalf; |
| 1315 | } |
| 1316 | |
| 1317 | if (count) |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1318 | usb_serial_debug_data(debug, &edge_port->port->dev, |
| 1319 | __func__, count, &buffer[2]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | |
| 1321 | /* fill up the urb with all of our data and submit it */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1322 | usb_fill_bulk_urb(urb, edge_serial->serial->dev, |
| 1323 | usb_sndbulkpipe(edge_serial->serial->dev, |
| 1324 | edge_serial->bulk_out_endpoint), |
| 1325 | buffer, count+2, |
| 1326 | edge_bulk_out_data_callback, edge_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1327 | |
| 1328 | /* decrement the number of credits we have by the number we just sent */ |
| 1329 | edge_port->txCredits -= count; |
| 1330 | edge_port->icount.tx += count; |
| 1331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | status = usb_submit_urb(urb, GFP_ATOMIC); |
| 1333 | if (status) { |
| 1334 | /* something went wrong */ |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1335 | dev_err_console(edge_port->port, |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1336 | "%s - usb_submit_urb(write bulk) failed, status = %d, data lost\n", |
| 1337 | __func__, status); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1338 | edge_port->write_in_progress = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1339 | |
| 1340 | /* revert the credits as something bad happened. */ |
| 1341 | edge_port->txCredits += count; |
| 1342 | edge_port->icount.tx -= count; |
| 1343 | } |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1344 | dbg("%s wrote %d byte(s) TxCredit %d, Fifo %d", |
| 1345 | __func__, count, edge_port->txCredits, fifo->count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1346 | |
| 1347 | exit_send: |
| 1348 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1349 | } |
| 1350 | |
| 1351 | |
| 1352 | /***************************************************************************** |
| 1353 | * edge_write_room |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1354 | * this function is called by the tty driver when it wants to know how |
| 1355 | * many bytes of data we can accept for a specific port. If successful, |
| 1356 | * we return the amount of room that we have for this port (the txCredits) |
| 1357 | * otherwise we return a negative error number. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1358 | *****************************************************************************/ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1359 | static int edge_write_room(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1360 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1361 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1363 | int room; |
| 1364 | unsigned long flags; |
| 1365 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1366 | dbg("%s", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | |
| 1368 | if (edge_port == NULL) |
Alan Cox | d76f2f4 | 2008-07-22 11:16:42 +0100 | [diff] [blame] | 1369 | return 0; |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1370 | if (edge_port->closePending) |
Alan Cox | d76f2f4 | 2008-07-22 11:16:42 +0100 | [diff] [blame] | 1371 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1372 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1373 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1374 | |
| 1375 | if (!edge_port->open) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1376 | dbg("%s - port not opened", __func__); |
Alan Cox | d76f2f4 | 2008-07-22 11:16:42 +0100 | [diff] [blame] | 1377 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1378 | } |
| 1379 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1380 | /* total of both buffers is still txCredit */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1381 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 1382 | room = edge_port->txCredits - edge_port->txfifo.count; |
| 1383 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1384 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1385 | dbg("%s - returns %d", __func__, room); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1386 | return room; |
| 1387 | } |
| 1388 | |
| 1389 | |
| 1390 | /***************************************************************************** |
| 1391 | * edge_chars_in_buffer |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1392 | * this function is called by the tty driver when it wants to know how |
| 1393 | * many bytes of data we currently have outstanding in the port (data that |
| 1394 | * has been written, but hasn't made it out the port yet) |
| 1395 | * If successful, we return the number of bytes left to be written in the |
| 1396 | * system, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1397 | * Otherwise we return a negative error number. |
| 1398 | *****************************************************************************/ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1399 | static int edge_chars_in_buffer(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1401 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1403 | int num_chars; |
| 1404 | unsigned long flags; |
| 1405 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1406 | dbg("%s", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | |
| 1408 | if (edge_port == NULL) |
Alan Cox | d76f2f4 | 2008-07-22 11:16:42 +0100 | [diff] [blame] | 1409 | return 0; |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1410 | if (edge_port->closePending) |
Alan Cox | d76f2f4 | 2008-07-22 11:16:42 +0100 | [diff] [blame] | 1411 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | |
| 1413 | if (!edge_port->open) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1414 | dbg("%s - port not opened", __func__); |
Alan Cox | d76f2f4 | 2008-07-22 11:16:42 +0100 | [diff] [blame] | 1415 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | } |
| 1417 | |
| 1418 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1419 | num_chars = edge_port->maxTxCredits - edge_port->txCredits + |
| 1420 | edge_port->txfifo.count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1422 | if (num_chars) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1423 | dbg("%s(port %d) - returns %d", __func__, |
| 1424 | port->number, num_chars); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1425 | } |
| 1426 | |
| 1427 | return num_chars; |
| 1428 | } |
| 1429 | |
| 1430 | |
| 1431 | /***************************************************************************** |
| 1432 | * SerialThrottle |
| 1433 | * this function is called by the tty driver when it wants to stop the data |
| 1434 | * being read from the port. |
| 1435 | *****************************************************************************/ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1436 | static void edge_throttle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1437 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1438 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1439 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | int status; |
| 1441 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1442 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1443 | |
| 1444 | if (edge_port == NULL) |
| 1445 | return; |
| 1446 | |
| 1447 | if (!edge_port->open) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1448 | dbg("%s - port not opened", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | return; |
| 1450 | } |
| 1451 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1452 | /* if we are implementing XON/XOFF, send the stop character */ |
| 1453 | if (I_IXOFF(tty)) { |
| 1454 | unsigned char stop_char = STOP_CHAR(tty); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1455 | status = edge_write(tty, port, &stop_char, 1); |
| 1456 | if (status <= 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1457 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | } |
| 1459 | |
| 1460 | /* if we are implementing RTS/CTS, toggle that line */ |
| 1461 | if (tty->termios->c_cflag & CRTSCTS) { |
| 1462 | edge_port->shadowMCR &= ~MCR_RTS; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1463 | status = send_cmd_write_uart_register(edge_port, MCR, |
| 1464 | edge_port->shadowMCR); |
| 1465 | if (status != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1467 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1468 | } |
| 1469 | |
| 1470 | |
| 1471 | /***************************************************************************** |
| 1472 | * edge_unthrottle |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1473 | * this function is called by the tty driver when it wants to resume the |
| 1474 | * data being read from the port (called after SerialThrottle is called) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | *****************************************************************************/ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1476 | static void edge_unthrottle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1478 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1479 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | int status; |
| 1481 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1482 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | |
| 1484 | if (edge_port == NULL) |
| 1485 | return; |
| 1486 | |
| 1487 | if (!edge_port->open) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1488 | dbg("%s - port not opened", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1489 | return; |
| 1490 | } |
| 1491 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1492 | /* if we are implementing XON/XOFF, send the start character */ |
| 1493 | if (I_IXOFF(tty)) { |
| 1494 | unsigned char start_char = START_CHAR(tty); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1495 | status = edge_write(tty, port, &start_char, 1); |
| 1496 | if (status <= 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1497 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1498 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | /* if we are implementing RTS/CTS, toggle that line */ |
| 1500 | if (tty->termios->c_cflag & CRTSCTS) { |
| 1501 | edge_port->shadowMCR |= MCR_RTS; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1502 | send_cmd_write_uart_register(edge_port, MCR, |
| 1503 | edge_port->shadowMCR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1504 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | } |
| 1506 | |
| 1507 | |
| 1508 | /***************************************************************************** |
| 1509 | * SerialSetTermios |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1510 | * this function is called by the tty driver when it wants to change |
| 1511 | * the termios structure |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1512 | *****************************************************************************/ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1513 | static void edge_set_termios(struct tty_struct *tty, |
| 1514 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1515 | { |
| 1516 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1517 | unsigned int cflag; |
| 1518 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1519 | cflag = tty->termios->c_cflag; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1520 | dbg("%s - clfag %08x iflag %08x", __func__, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1521 | tty->termios->c_cflag, tty->termios->c_iflag); |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1522 | dbg("%s - old clfag %08x old iflag %08x", __func__, |
Alan Cox | 6ce073b | 2007-10-18 01:24:25 -0700 | [diff] [blame] | 1523 | old_termios->c_cflag, old_termios->c_iflag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1524 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1525 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1526 | |
| 1527 | if (edge_port == NULL) |
| 1528 | return; |
| 1529 | |
| 1530 | if (!edge_port->open) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1531 | dbg("%s - port not opened", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1532 | return; |
| 1533 | } |
| 1534 | |
| 1535 | /* change the port settings to the new ones specified */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1536 | change_port_settings(tty, edge_port, old_termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1537 | } |
| 1538 | |
| 1539 | |
| 1540 | /***************************************************************************** |
| 1541 | * get_lsr_info - get line status register info |
| 1542 | * |
| 1543 | * Purpose: Let user call ioctl() to get info when the UART physically |
| 1544 | * is emptied. On bus types like RS485, the transmitter must |
| 1545 | * release the bus after transmitting. This must be done when |
| 1546 | * the transmit shift register is empty, not be done when the |
| 1547 | * transmit holding register is empty. This functionality |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1548 | * allows an RS485 driver to be written in user space. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1549 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1550 | static int get_lsr_info(struct edgeport_port *edge_port, |
| 1551 | unsigned int __user *value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1552 | { |
| 1553 | unsigned int result = 0; |
| 1554 | unsigned long flags; |
| 1555 | |
| 1556 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 1557 | if (edge_port->maxTxCredits == edge_port->txCredits && |
| 1558 | edge_port->txfifo.count == 0) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1559 | dbg("%s -- Empty", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1560 | result = TIOCSER_TEMT; |
| 1561 | } |
| 1562 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1563 | |
| 1564 | if (copy_to_user(value, &result, sizeof(int))) |
| 1565 | return -EFAULT; |
| 1566 | return 0; |
| 1567 | } |
| 1568 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 1569 | static int edge_tiocmset(struct tty_struct *tty, |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1570 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1571 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1572 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1573 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1574 | unsigned int mcr; |
| 1575 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1576 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1577 | |
| 1578 | mcr = edge_port->shadowMCR; |
| 1579 | if (set & TIOCM_RTS) |
| 1580 | mcr |= MCR_RTS; |
| 1581 | if (set & TIOCM_DTR) |
| 1582 | mcr |= MCR_DTR; |
| 1583 | if (set & TIOCM_LOOP) |
| 1584 | mcr |= MCR_LOOPBACK; |
| 1585 | |
| 1586 | if (clear & TIOCM_RTS) |
| 1587 | mcr &= ~MCR_RTS; |
| 1588 | if (clear & TIOCM_DTR) |
| 1589 | mcr &= ~MCR_DTR; |
| 1590 | if (clear & TIOCM_LOOP) |
| 1591 | mcr &= ~MCR_LOOPBACK; |
| 1592 | |
| 1593 | edge_port->shadowMCR = mcr; |
| 1594 | |
| 1595 | send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR); |
| 1596 | |
| 1597 | return 0; |
| 1598 | } |
| 1599 | |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 1600 | static int edge_tiocmget(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1601 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1602 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1603 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1604 | unsigned int result = 0; |
| 1605 | unsigned int msr; |
| 1606 | unsigned int mcr; |
| 1607 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1608 | dbg("%s - port %d", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1609 | |
| 1610 | msr = edge_port->shadowMSR; |
| 1611 | mcr = edge_port->shadowMCR; |
| 1612 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ |
| 1613 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ |
| 1614 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ |
| 1615 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ |
| 1616 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ |
| 1617 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ |
| 1618 | |
| 1619 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1620 | dbg("%s -- %x", __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1621 | |
| 1622 | return result; |
| 1623 | } |
| 1624 | |
Alan Cox | 0bca1b9 | 2010-09-16 18:21:40 +0100 | [diff] [blame] | 1625 | static int edge_get_icount(struct tty_struct *tty, |
| 1626 | struct serial_icounter_struct *icount) |
| 1627 | { |
| 1628 | struct usb_serial_port *port = tty->driver_data; |
| 1629 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1630 | struct async_icount cnow; |
| 1631 | cnow = edge_port->icount; |
| 1632 | |
| 1633 | icount->cts = cnow.cts; |
| 1634 | icount->dsr = cnow.dsr; |
| 1635 | icount->rng = cnow.rng; |
| 1636 | icount->dcd = cnow.dcd; |
| 1637 | icount->rx = cnow.rx; |
| 1638 | icount->tx = cnow.tx; |
| 1639 | icount->frame = cnow.frame; |
| 1640 | icount->overrun = cnow.overrun; |
| 1641 | icount->parity = cnow.parity; |
| 1642 | icount->brk = cnow.brk; |
| 1643 | icount->buf_overrun = cnow.buf_overrun; |
| 1644 | |
| 1645 | dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", |
| 1646 | __func__, port->number, icount->rx, icount->tx); |
| 1647 | return 0; |
| 1648 | } |
| 1649 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1650 | static int get_serial_info(struct edgeport_port *edge_port, |
| 1651 | struct serial_struct __user *retinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1652 | { |
| 1653 | struct serial_struct tmp; |
| 1654 | |
| 1655 | if (!retinfo) |
| 1656 | return -EFAULT; |
| 1657 | |
| 1658 | memset(&tmp, 0, sizeof(tmp)); |
| 1659 | |
| 1660 | tmp.type = PORT_16550A; |
| 1661 | tmp.line = edge_port->port->serial->minor; |
| 1662 | tmp.port = edge_port->port->number; |
| 1663 | tmp.irq = 0; |
| 1664 | tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; |
| 1665 | tmp.xmit_fifo_size = edge_port->maxTxCredits; |
| 1666 | tmp.baud_base = 9600; |
| 1667 | tmp.close_delay = 5*HZ; |
| 1668 | tmp.closing_wait = 30*HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1669 | |
| 1670 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) |
| 1671 | return -EFAULT; |
| 1672 | return 0; |
| 1673 | } |
| 1674 | |
| 1675 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1676 | /***************************************************************************** |
| 1677 | * SerialIoctl |
| 1678 | * this function handles any ioctl calls to the driver |
| 1679 | *****************************************************************************/ |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 1680 | static int edge_ioctl(struct tty_struct *tty, |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1681 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1682 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1683 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | DEFINE_WAIT(wait); |
| 1685 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1686 | struct async_icount cnow; |
| 1687 | struct async_icount cprev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1688 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1689 | dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1690 | |
| 1691 | switch (cmd) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1692 | case TIOCSERGETLSR: |
| 1693 | dbg("%s (%d) TIOCSERGETLSR", __func__, port->number); |
| 1694 | return get_lsr_info(edge_port, (unsigned int __user *) arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1695 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1696 | case TIOCGSERIAL: |
| 1697 | dbg("%s (%d) TIOCGSERIAL", __func__, port->number); |
| 1698 | return get_serial_info(edge_port, (struct serial_struct __user *) arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1699 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1700 | case TIOCMIWAIT: |
| 1701 | dbg("%s (%d) TIOCMIWAIT", __func__, port->number); |
| 1702 | cprev = edge_port->icount; |
| 1703 | while (1) { |
| 1704 | prepare_to_wait(&edge_port->delta_msr_wait, |
| 1705 | &wait, TASK_INTERRUPTIBLE); |
| 1706 | schedule(); |
| 1707 | finish_wait(&edge_port->delta_msr_wait, &wait); |
| 1708 | /* see if a signal did it */ |
| 1709 | if (signal_pending(current)) |
| 1710 | return -ERESTARTSYS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1711 | cnow = edge_port->icount; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1712 | if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && |
| 1713 | cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) |
| 1714 | return -EIO; /* no change => error */ |
| 1715 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || |
| 1716 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || |
| 1717 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || |
| 1718 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { |
| 1719 | return 0; |
| 1720 | } |
| 1721 | cprev = cnow; |
| 1722 | } |
| 1723 | /* NOTREACHED */ |
| 1724 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1725 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1726 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1727 | return -ENOIOCTLCMD; |
| 1728 | } |
| 1729 | |
| 1730 | |
| 1731 | /***************************************************************************** |
| 1732 | * SerialBreak |
| 1733 | * this function sends a break to the port |
| 1734 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1735 | static void edge_break(struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1737 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1738 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1739 | struct edgeport_serial *edge_serial = usb_get_serial_data(port->serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1740 | int status; |
| 1741 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1742 | if ((!edge_serial->is_epic) || |
| 1743 | ((edge_serial->is_epic) && |
| 1744 | (edge_serial->epic_descriptor.Supports.IOSPChase))) { |
| 1745 | /* flush and chase */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1746 | edge_port->chaseResponsePending = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1747 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1748 | dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1749 | status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1750 | if (status == 0) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1751 | /* block until chase finished */ |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1752 | block_until_chase_response(edge_port); |
| 1753 | } else { |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1754 | edge_port->chaseResponsePending = false; |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1755 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1756 | } |
| 1757 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1758 | if ((!edge_serial->is_epic) || |
| 1759 | ((edge_serial->is_epic) && |
| 1760 | (edge_serial->epic_descriptor.Supports.IOSPSetClrBreak))) { |
| 1761 | if (break_state == -1) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1762 | dbg("%s - Sending IOSP_CMD_SET_BREAK", __func__); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1763 | status = send_iosp_ext_cmd(edge_port, |
| 1764 | IOSP_CMD_SET_BREAK, 0); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1765 | } else { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1766 | dbg("%s - Sending IOSP_CMD_CLEAR_BREAK", __func__); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1767 | status = send_iosp_ext_cmd(edge_port, |
| 1768 | IOSP_CMD_CLEAR_BREAK, 0); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 1769 | } |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1770 | if (status) |
| 1771 | dbg("%s - error sending break set/clear command.", |
| 1772 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1773 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1774 | } |
| 1775 | |
| 1776 | |
| 1777 | /***************************************************************************** |
| 1778 | * process_rcvd_data |
| 1779 | * this function handles the data received on the bulk in pipe. |
| 1780 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1781 | static void process_rcvd_data(struct edgeport_serial *edge_serial, |
| 1782 | unsigned char *buffer, __u16 bufferLength) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1783 | { |
| 1784 | struct usb_serial_port *port; |
| 1785 | struct edgeport_port *edge_port; |
| 1786 | struct tty_struct *tty; |
| 1787 | __u16 lastBufferLength; |
| 1788 | __u16 rxLen; |
| 1789 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1790 | dbg("%s", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1791 | |
| 1792 | lastBufferLength = bufferLength + 1; |
| 1793 | |
| 1794 | while (bufferLength > 0) { |
| 1795 | /* failsafe incase we get a message that we don't understand */ |
| 1796 | if (lastBufferLength == bufferLength) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1797 | dbg("%s - stuck in loop, exiting it.", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1798 | break; |
| 1799 | } |
| 1800 | lastBufferLength = bufferLength; |
| 1801 | |
| 1802 | switch (edge_serial->rxState) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1803 | case EXPECT_HDR1: |
| 1804 | edge_serial->rxHeader1 = *buffer; |
| 1805 | ++buffer; |
| 1806 | --bufferLength; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1807 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1808 | if (bufferLength == 0) { |
| 1809 | edge_serial->rxState = EXPECT_HDR2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | break; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1811 | } |
| 1812 | /* otherwise, drop on through */ |
| 1813 | case EXPECT_HDR2: |
| 1814 | edge_serial->rxHeader2 = *buffer; |
| 1815 | ++buffer; |
| 1816 | --bufferLength; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1817 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1818 | dbg("%s - Hdr1=%02X Hdr2=%02X", __func__, |
| 1819 | edge_serial->rxHeader1, edge_serial->rxHeader2); |
| 1820 | /* Process depending on whether this header is |
| 1821 | * data or status */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1822 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1823 | if (IS_CMD_STAT_HDR(edge_serial->rxHeader1)) { |
| 1824 | /* Decode this status header and go to |
| 1825 | * EXPECT_HDR1 (if we can process the status |
| 1826 | * with only 2 bytes), or go to EXPECT_HDR3 to |
| 1827 | * get the third byte. */ |
| 1828 | edge_serial->rxPort = |
| 1829 | IOSP_GET_HDR_PORT(edge_serial->rxHeader1); |
| 1830 | edge_serial->rxStatusCode = |
| 1831 | IOSP_GET_STATUS_CODE( |
| 1832 | edge_serial->rxHeader1); |
| 1833 | |
| 1834 | if (!IOSP_STATUS_IS_2BYTE( |
| 1835 | edge_serial->rxStatusCode)) { |
| 1836 | /* This status needs additional bytes. |
| 1837 | * Save what we have and then wait for |
| 1838 | * more data. |
| 1839 | */ |
| 1840 | edge_serial->rxStatusParam |
| 1841 | = edge_serial->rxHeader2; |
| 1842 | edge_serial->rxState = EXPECT_HDR3; |
| 1843 | break; |
| 1844 | } |
| 1845 | /* We have all the header bytes, process the |
| 1846 | status now */ |
| 1847 | process_rcvd_status(edge_serial, |
| 1848 | edge_serial->rxHeader2, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1849 | edge_serial->rxState = EXPECT_HDR1; |
| 1850 | break; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1851 | } else { |
| 1852 | edge_serial->rxPort = |
| 1853 | IOSP_GET_HDR_PORT(edge_serial->rxHeader1); |
| 1854 | edge_serial->rxBytesRemaining = |
| 1855 | IOSP_GET_HDR_DATA_LEN( |
| 1856 | edge_serial->rxHeader1, |
| 1857 | edge_serial->rxHeader2); |
| 1858 | dbg("%s - Data for Port %u Len %u", |
| 1859 | __func__, |
| 1860 | edge_serial->rxPort, |
| 1861 | edge_serial->rxBytesRemaining); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1862 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1863 | /* ASSERT(DevExt->RxPort < DevExt->NumPorts); |
| 1864 | * ASSERT(DevExt->RxBytesRemaining < |
| 1865 | * IOSP_MAX_DATA_LENGTH); |
| 1866 | */ |
| 1867 | |
| 1868 | if (bufferLength == 0) { |
| 1869 | edge_serial->rxState = EXPECT_DATA; |
| 1870 | break; |
| 1871 | } |
| 1872 | /* Else, drop through */ |
| 1873 | } |
| 1874 | case EXPECT_DATA: /* Expect data */ |
| 1875 | if (bufferLength < edge_serial->rxBytesRemaining) { |
| 1876 | rxLen = bufferLength; |
| 1877 | /* Expect data to start next buffer */ |
| 1878 | edge_serial->rxState = EXPECT_DATA; |
| 1879 | } else { |
| 1880 | /* BufLen >= RxBytesRemaining */ |
| 1881 | rxLen = edge_serial->rxBytesRemaining; |
| 1882 | /* Start another header next time */ |
| 1883 | edge_serial->rxState = EXPECT_HDR1; |
| 1884 | } |
| 1885 | |
| 1886 | bufferLength -= rxLen; |
| 1887 | edge_serial->rxBytesRemaining -= rxLen; |
| 1888 | |
| 1889 | /* spit this data back into the tty driver if this |
| 1890 | port is open */ |
| 1891 | if (rxLen) { |
| 1892 | port = edge_serial->serial->port[ |
| 1893 | edge_serial->rxPort]; |
| 1894 | edge_port = usb_get_serial_port_data(port); |
| 1895 | if (edge_port->open) { |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1896 | tty = tty_port_tty_get( |
| 1897 | &edge_port->port->port); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1898 | if (tty) { |
| 1899 | dbg("%s - Sending %d bytes to TTY for port %d", |
| 1900 | __func__, rxLen, edge_serial->rxPort); |
| 1901 | edge_tty_recv(&edge_serial->serial->dev->dev, tty, buffer, rxLen); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1902 | tty_kref_put(tty); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1903 | } |
| 1904 | edge_port->icount.rx += rxLen; |
| 1905 | } |
| 1906 | buffer += rxLen; |
| 1907 | } |
| 1908 | break; |
| 1909 | |
| 1910 | case EXPECT_HDR3: /* Expect 3rd byte of status header */ |
| 1911 | edge_serial->rxHeader3 = *buffer; |
| 1912 | ++buffer; |
| 1913 | --bufferLength; |
| 1914 | |
| 1915 | /* We have all the header bytes, process the |
| 1916 | status now */ |
| 1917 | process_rcvd_status(edge_serial, |
| 1918 | edge_serial->rxStatusParam, |
| 1919 | edge_serial->rxHeader3); |
| 1920 | edge_serial->rxState = EXPECT_HDR1; |
| 1921 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1922 | } |
| 1923 | } |
| 1924 | } |
| 1925 | |
| 1926 | |
| 1927 | /***************************************************************************** |
| 1928 | * process_rcvd_status |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1929 | * this function handles the any status messages received on the |
| 1930 | * bulk in pipe. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1931 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1932 | static void process_rcvd_status(struct edgeport_serial *edge_serial, |
| 1933 | __u8 byte2, __u8 byte3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1934 | { |
| 1935 | struct usb_serial_port *port; |
| 1936 | struct edgeport_port *edge_port; |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1937 | struct tty_struct *tty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1938 | __u8 code = edge_serial->rxStatusCode; |
| 1939 | |
| 1940 | /* switch the port pointer to the one being currently talked about */ |
| 1941 | port = edge_serial->serial->port[edge_serial->rxPort]; |
| 1942 | edge_port = usb_get_serial_port_data(port); |
| 1943 | if (edge_port == NULL) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1944 | dev_err(&edge_serial->serial->dev->dev, |
| 1945 | "%s - edge_port == NULL for port %d\n", |
| 1946 | __func__, edge_serial->rxPort); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1947 | return; |
| 1948 | } |
| 1949 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1950 | dbg("%s - port %d", __func__, edge_serial->rxPort); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1951 | |
| 1952 | if (code == IOSP_EXT_STATUS) { |
| 1953 | switch (byte2) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1954 | case IOSP_EXT_STATUS_CHASE_RSP: |
| 1955 | /* we want to do EXT status regardless of port |
| 1956 | * open/closed */ |
| 1957 | dbg("%s - Port %u EXT CHASE_RSP Data = %02x", |
| 1958 | __func__, edge_serial->rxPort, byte3); |
| 1959 | /* Currently, the only EXT_STATUS is Chase, so process |
| 1960 | * here instead of one more call to one more subroutine |
| 1961 | * If/when more EXT_STATUS, there'll be more work to do |
| 1962 | * Also, we currently clear flag and close the port |
| 1963 | * regardless of content of above's Byte3. |
| 1964 | * We could choose to do something else when Byte3 says |
| 1965 | * Timeout on Chase from Edgeport, like wait longer in |
| 1966 | * block_until_chase_response, but for now we don't. |
| 1967 | */ |
| 1968 | edge_port->chaseResponsePending = false; |
| 1969 | wake_up(&edge_port->wait_chase); |
| 1970 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1971 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1972 | case IOSP_EXT_STATUS_RX_CHECK_RSP: |
Joe Perches | 759f363 | 2010-02-05 16:50:08 -0800 | [diff] [blame] | 1973 | dbg("%s ========== Port %u CHECK_RSP Sequence = %02x =============", __func__, edge_serial->rxPort, byte3); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1974 | /* Port->RxCheckRsp = true; */ |
| 1975 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1976 | } |
| 1977 | } |
| 1978 | |
| 1979 | if (code == IOSP_STATUS_OPEN_RSP) { |
| 1980 | edge_port->txCredits = GET_TX_BUFFER_SIZE(byte3); |
| 1981 | edge_port->maxTxCredits = edge_port->txCredits; |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1982 | dbg("%s - Port %u Open Response Initial MSR = %02x TxBufferSize = %d", __func__, edge_serial->rxPort, byte2, edge_port->txCredits); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1983 | handle_new_msr(edge_port, byte2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1984 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 1985 | /* send the current line settings to the port so we are |
| 1986 | in sync with any further termios calls */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1987 | tty = tty_port_tty_get(&edge_port->port->port); |
| 1988 | if (tty) { |
| 1989 | change_port_settings(tty, |
| 1990 | edge_port, tty->termios); |
| 1991 | tty_kref_put(tty); |
| 1992 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1993 | |
| 1994 | /* we have completed the open */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 1995 | edge_port->openPending = false; |
| 1996 | edge_port->open = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1997 | wake_up(&edge_port->wait_open); |
| 1998 | return; |
| 1999 | } |
| 2000 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2001 | /* If port is closed, silently discard all rcvd status. We can |
| 2002 | * have cases where buffered status is received AFTER the close |
| 2003 | * port command is sent to the Edgeport. |
| 2004 | */ |
| 2005 | if (!edge_port->open || edge_port->closePending) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2006 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2007 | |
| 2008 | switch (code) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2009 | /* Not currently sent by Edgeport */ |
| 2010 | case IOSP_STATUS_LSR: |
| 2011 | dbg("%s - Port %u LSR Status = %02x", |
| 2012 | __func__, edge_serial->rxPort, byte2); |
| 2013 | handle_new_lsr(edge_port, false, byte2, 0); |
| 2014 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2015 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2016 | case IOSP_STATUS_LSR_DATA: |
| 2017 | dbg("%s - Port %u LSR Status = %02x, Data = %02x", |
| 2018 | __func__, edge_serial->rxPort, byte2, byte3); |
| 2019 | /* byte2 is LSR Register */ |
| 2020 | /* byte3 is broken data byte */ |
| 2021 | handle_new_lsr(edge_port, true, byte2, byte3); |
| 2022 | break; |
| 2023 | /* |
| 2024 | * case IOSP_EXT_4_STATUS: |
| 2025 | * dbg("%s - Port %u LSR Status = %02x Data = %02x", |
| 2026 | * __func__, edge_serial->rxPort, byte2, byte3); |
| 2027 | * break; |
| 2028 | */ |
| 2029 | case IOSP_STATUS_MSR: |
| 2030 | dbg("%s - Port %u MSR Status = %02x", |
| 2031 | __func__, edge_serial->rxPort, byte2); |
| 2032 | /* |
| 2033 | * Process this new modem status and generate appropriate |
| 2034 | * events, etc, based on the new status. This routine |
| 2035 | * also saves the MSR in Port->ShadowMsr. |
| 2036 | */ |
| 2037 | handle_new_msr(edge_port, byte2); |
| 2038 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2039 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2040 | default: |
Joe Perches | 759f363 | 2010-02-05 16:50:08 -0800 | [diff] [blame] | 2041 | dbg("%s - Unrecognized IOSP status code %u", __func__, code); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2042 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2043 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2044 | } |
| 2045 | |
| 2046 | |
| 2047 | /***************************************************************************** |
| 2048 | * edge_tty_recv |
| 2049 | * this function passes data on to the tty flip buffer |
| 2050 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2051 | static void edge_tty_recv(struct device *dev, struct tty_struct *tty, |
| 2052 | unsigned char *data, int length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2053 | { |
| 2054 | int cnt; |
| 2055 | |
Alan Cox | a108bfc | 2010-02-18 16:44:01 +0000 | [diff] [blame] | 2056 | cnt = tty_insert_flip_string(tty, data, length); |
| 2057 | if (cnt < length) { |
| 2058 | dev_err(dev, "%s - dropping data, %d bytes lost\n", |
| 2059 | __func__, length - cnt); |
| 2060 | } |
| 2061 | data += cnt; |
| 2062 | length -= cnt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2063 | |
| 2064 | tty_flip_buffer_push(tty); |
| 2065 | } |
| 2066 | |
| 2067 | |
| 2068 | /***************************************************************************** |
| 2069 | * handle_new_msr |
| 2070 | * this function handles any change to the msr register for a port. |
| 2071 | *****************************************************************************/ |
| 2072 | static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr) |
| 2073 | { |
| 2074 | struct async_icount *icount; |
| 2075 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2076 | dbg("%s %02x", __func__, newMsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2077 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2078 | if (newMsr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | |
| 2079 | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2080 | icount = &edge_port->icount; |
| 2081 | |
| 2082 | /* update input line counters */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2083 | if (newMsr & EDGEPORT_MSR_DELTA_CTS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2084 | icount->cts++; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2085 | if (newMsr & EDGEPORT_MSR_DELTA_DSR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2086 | icount->dsr++; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2087 | if (newMsr & EDGEPORT_MSR_DELTA_CD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2088 | icount->dcd++; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2089 | if (newMsr & EDGEPORT_MSR_DELTA_RI) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2090 | icount->rng++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2091 | wake_up_interruptible(&edge_port->delta_msr_wait); |
| 2092 | } |
| 2093 | |
| 2094 | /* Save the new modem status */ |
| 2095 | edge_port->shadowMSR = newMsr & 0xf0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2096 | } |
| 2097 | |
| 2098 | |
| 2099 | /***************************************************************************** |
| 2100 | * handle_new_lsr |
| 2101 | * this function handles any change to the lsr register for a port. |
| 2102 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2103 | static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData, |
| 2104 | __u8 lsr, __u8 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2105 | { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2106 | __u8 newLsr = (__u8) (lsr & (__u8) |
| 2107 | (LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK)); |
| 2108 | struct async_icount *icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2109 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2110 | dbg("%s - %02x", __func__, newLsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2111 | |
| 2112 | edge_port->shadowLSR = lsr; |
| 2113 | |
| 2114 | if (newLsr & LSR_BREAK) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2115 | /* |
| 2116 | * Parity and Framing errors only count if they |
| 2117 | * occur exclusive of a break being |
| 2118 | * received. |
| 2119 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2120 | newLsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); |
| 2121 | } |
| 2122 | |
| 2123 | /* Place LSR data byte into Rx buffer */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 2124 | if (lsrData) { |
| 2125 | struct tty_struct *tty = |
| 2126 | tty_port_tty_get(&edge_port->port->port); |
| 2127 | if (tty) { |
| 2128 | edge_tty_recv(&edge_port->port->dev, tty, &data, 1); |
| 2129 | tty_kref_put(tty); |
| 2130 | } |
| 2131 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2132 | /* update input line counters */ |
| 2133 | icount = &edge_port->icount; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2134 | if (newLsr & LSR_BREAK) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2135 | icount->brk++; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2136 | if (newLsr & LSR_OVER_ERR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2137 | icount->overrun++; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2138 | if (newLsr & LSR_PAR_ERR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2139 | icount->parity++; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2140 | if (newLsr & LSR_FRM_ERR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2141 | icount->frame++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2142 | } |
| 2143 | |
| 2144 | |
| 2145 | /**************************************************************************** |
| 2146 | * sram_write |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2147 | * writes a number of bytes to the Edgeport device's sram starting at the |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2148 | * given address. |
| 2149 | * If successful returns the number of bytes written, otherwise it returns |
| 2150 | * a negative error number of the problem. |
| 2151 | ****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2152 | static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, |
| 2153 | __u16 length, const __u8 *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2154 | { |
| 2155 | int result; |
| 2156 | __u16 current_length; |
| 2157 | unsigned char *transfer_buffer; |
| 2158 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2159 | dbg("%s - %x, %x, %d", __func__, extAddr, addr, length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2160 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2161 | transfer_buffer = kmalloc(64, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2162 | if (!transfer_buffer) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2163 | dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", |
| 2164 | __func__, 64); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2165 | return -ENOMEM; |
| 2166 | } |
| 2167 | |
| 2168 | /* need to split these writes up into 64 byte chunks */ |
| 2169 | result = 0; |
| 2170 | while (length > 0) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2171 | if (length > 64) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2172 | current_length = 64; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2173 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2174 | current_length = length; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2175 | |
| 2176 | /* dbg("%s - writing %x, %x, %d", __func__, |
| 2177 | extAddr, addr, current_length); */ |
| 2178 | memcpy(transfer_buffer, data, current_length); |
| 2179 | result = usb_control_msg(serial->dev, |
| 2180 | usb_sndctrlpipe(serial->dev, 0), |
| 2181 | USB_REQUEST_ION_WRITE_RAM, |
| 2182 | 0x40, addr, extAddr, transfer_buffer, |
| 2183 | current_length, 300); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2184 | if (result < 0) |
| 2185 | break; |
| 2186 | length -= current_length; |
| 2187 | addr += current_length; |
| 2188 | data += current_length; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2189 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2190 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2191 | kfree(transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2192 | return result; |
| 2193 | } |
| 2194 | |
| 2195 | |
| 2196 | /**************************************************************************** |
| 2197 | * rom_write |
| 2198 | * writes a number of bytes to the Edgeport device's ROM starting at the |
| 2199 | * given address. |
| 2200 | * If successful returns the number of bytes written, otherwise it returns |
| 2201 | * a negative error number of the problem. |
| 2202 | ****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2203 | static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, |
| 2204 | __u16 length, const __u8 *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2205 | { |
| 2206 | int result; |
| 2207 | __u16 current_length; |
| 2208 | unsigned char *transfer_buffer; |
| 2209 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2210 | /* dbg("%s - %x, %x, %d", __func__, extAddr, addr, length); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2211 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2212 | transfer_buffer = kmalloc(64, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2213 | if (!transfer_buffer) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2214 | dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", |
| 2215 | __func__, 64); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2216 | return -ENOMEM; |
| 2217 | } |
| 2218 | |
| 2219 | /* need to split these writes up into 64 byte chunks */ |
| 2220 | result = 0; |
| 2221 | while (length > 0) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2222 | if (length > 64) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2223 | current_length = 64; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2224 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2225 | current_length = length; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2226 | /* dbg("%s - writing %x, %x, %d", __func__, |
| 2227 | extAddr, addr, current_length); */ |
| 2228 | memcpy(transfer_buffer, data, current_length); |
| 2229 | result = usb_control_msg(serial->dev, |
| 2230 | usb_sndctrlpipe(serial->dev, 0), |
| 2231 | USB_REQUEST_ION_WRITE_ROM, 0x40, |
| 2232 | addr, extAddr, |
| 2233 | transfer_buffer, current_length, 300); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2234 | if (result < 0) |
| 2235 | break; |
| 2236 | length -= current_length; |
| 2237 | addr += current_length; |
| 2238 | data += current_length; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2239 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2240 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2241 | kfree(transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2242 | return result; |
| 2243 | } |
| 2244 | |
| 2245 | |
| 2246 | /**************************************************************************** |
| 2247 | * rom_read |
| 2248 | * reads a number of bytes from the Edgeport device starting at the given |
| 2249 | * address. |
| 2250 | * If successful returns the number of bytes read, otherwise it returns |
| 2251 | * a negative error number of the problem. |
| 2252 | ****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2253 | static int rom_read(struct usb_serial *serial, __u16 extAddr, |
| 2254 | __u16 addr, __u16 length, __u8 *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2255 | { |
| 2256 | int result; |
| 2257 | __u16 current_length; |
| 2258 | unsigned char *transfer_buffer; |
| 2259 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2260 | dbg("%s - %x, %x, %d", __func__, extAddr, addr, length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2261 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2262 | transfer_buffer = kmalloc(64, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2263 | if (!transfer_buffer) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2264 | dev_err(&serial->dev->dev, |
| 2265 | "%s - kmalloc(%d) failed.\n", __func__, 64); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2266 | return -ENOMEM; |
| 2267 | } |
| 2268 | |
| 2269 | /* need to split these reads up into 64 byte chunks */ |
| 2270 | result = 0; |
| 2271 | while (length > 0) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2272 | if (length > 64) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2273 | current_length = 64; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2274 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2275 | current_length = length; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2276 | /* dbg("%s - %x, %x, %d", __func__, |
| 2277 | extAddr, addr, current_length); */ |
| 2278 | result = usb_control_msg(serial->dev, |
| 2279 | usb_rcvctrlpipe(serial->dev, 0), |
| 2280 | USB_REQUEST_ION_READ_ROM, |
| 2281 | 0xC0, addr, extAddr, transfer_buffer, |
| 2282 | current_length, 300); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2283 | if (result < 0) |
| 2284 | break; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2285 | memcpy(data, transfer_buffer, current_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2286 | length -= current_length; |
| 2287 | addr += current_length; |
| 2288 | data += current_length; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2289 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2290 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2291 | kfree(transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2292 | return result; |
| 2293 | } |
| 2294 | |
| 2295 | |
| 2296 | /**************************************************************************** |
| 2297 | * send_iosp_ext_cmd |
| 2298 | * Is used to send a IOSP message to the Edgeport device |
| 2299 | ****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2300 | static int send_iosp_ext_cmd(struct edgeport_port *edge_port, |
| 2301 | __u8 command, __u8 param) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2302 | { |
| 2303 | unsigned char *buffer; |
| 2304 | unsigned char *currentCommand; |
| 2305 | int length = 0; |
| 2306 | int status = 0; |
| 2307 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2308 | dbg("%s - %d, %d", __func__, command, param); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2309 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2310 | buffer = kmalloc(10, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2311 | if (!buffer) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2312 | dev_err(&edge_port->port->dev, |
| 2313 | "%s - kmalloc(%d) failed.\n", __func__, 10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2314 | return -ENOMEM; |
| 2315 | } |
| 2316 | |
| 2317 | currentCommand = buffer; |
| 2318 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2319 | MAKE_CMD_EXT_CMD(¤tCommand, &length, |
| 2320 | edge_port->port->number - edge_port->port->serial->minor, |
| 2321 | command, param); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2322 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2323 | status = write_cmd_usb(edge_port, buffer, length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2324 | if (status) { |
| 2325 | /* something bad happened, let's free up the memory */ |
| 2326 | kfree(buffer); |
| 2327 | } |
| 2328 | |
| 2329 | return status; |
| 2330 | } |
| 2331 | |
| 2332 | |
| 2333 | /***************************************************************************** |
| 2334 | * write_cmd_usb |
| 2335 | * this function writes the given buffer out to the bulk write endpoint. |
| 2336 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2337 | static int write_cmd_usb(struct edgeport_port *edge_port, |
| 2338 | unsigned char *buffer, int length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2339 | { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2340 | struct edgeport_serial *edge_serial = |
| 2341 | usb_get_serial_data(edge_port->port->serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2342 | int status = 0; |
| 2343 | struct urb *urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2344 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2345 | usb_serial_debug_data(debug, &edge_port->port->dev, |
| 2346 | __func__, length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2347 | |
| 2348 | /* Allocate our next urb */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2349 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2350 | if (!urb) |
| 2351 | return -ENOMEM; |
| 2352 | |
Oliver Neukum | 96c706e | 2007-03-15 15:27:17 +0100 | [diff] [blame] | 2353 | atomic_inc(&CmdUrbs); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2354 | dbg("%s - ALLOCATE URB %p (outstanding %d)", |
| 2355 | __func__, urb, atomic_read(&CmdUrbs)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2356 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2357 | usb_fill_bulk_urb(urb, edge_serial->serial->dev, |
| 2358 | usb_sndbulkpipe(edge_serial->serial->dev, |
| 2359 | edge_serial->bulk_out_endpoint), |
| 2360 | buffer, length, edge_bulk_out_cmd_callback, edge_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2361 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 2362 | edge_port->commandPending = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | status = usb_submit_urb(urb, GFP_ATOMIC); |
| 2364 | |
| 2365 | if (status) { |
| 2366 | /* something went wrong */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2367 | dev_err(&edge_port->port->dev, |
| 2368 | "%s - usb_submit_urb(write command) failed, status = %d\n", |
| 2369 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2370 | usb_kill_urb(urb); |
| 2371 | usb_free_urb(urb); |
Oliver Neukum | 96c706e | 2007-03-15 15:27:17 +0100 | [diff] [blame] | 2372 | atomic_dec(&CmdUrbs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2373 | return status; |
| 2374 | } |
| 2375 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2376 | #if 0 |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2377 | wait_event(&edge_port->wait_command, !edge_port->commandPending); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2378 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 2379 | if (edge_port->commandPending) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | /* command timed out */ |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2381 | dbg("%s - command timed out", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2382 | status = -EINVAL; |
| 2383 | } |
| 2384 | #endif |
| 2385 | return status; |
| 2386 | } |
| 2387 | |
| 2388 | |
| 2389 | /***************************************************************************** |
| 2390 | * send_cmd_write_baud_rate |
| 2391 | * this function sends the proper command to change the baud rate of the |
| 2392 | * specified port. |
| 2393 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2394 | static int send_cmd_write_baud_rate(struct edgeport_port *edge_port, |
| 2395 | int baudRate) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2396 | { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2397 | struct edgeport_serial *edge_serial = |
| 2398 | usb_get_serial_data(edge_port->port->serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2399 | unsigned char *cmdBuffer; |
| 2400 | unsigned char *currCmd; |
| 2401 | int cmdLen = 0; |
| 2402 | int divisor; |
| 2403 | int status; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2404 | unsigned char number = |
| 2405 | edge_port->port->number - edge_port->port->serial->minor; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2406 | |
Adam Kropelin | bc71e47 | 2007-07-29 11:03:29 -0400 | [diff] [blame] | 2407 | if (edge_serial->is_epic && |
| 2408 | !edge_serial->epic_descriptor.Supports.IOSPSetBaudRate) { |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2409 | dbg("SendCmdWriteBaudRate - NOT Setting baud rate for port = %d, baud = %d", |
| 2410 | edge_port->port->number, baudRate); |
| 2411 | return 0; |
| 2412 | } |
| 2413 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2414 | dbg("%s - port = %d, baud = %d", __func__, |
| 2415 | edge_port->port->number, baudRate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2416 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2417 | status = calc_baud_rate_divisor(baudRate, &divisor); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2418 | if (status) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2419 | dev_err(&edge_port->port->dev, "%s - bad baud rate\n", |
| 2420 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2421 | return status; |
| 2422 | } |
| 2423 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2424 | /* Alloc memory for the string of commands. */ |
| 2425 | cmdBuffer = kmalloc(0x100, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2426 | if (!cmdBuffer) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2427 | dev_err(&edge_port->port->dev, |
| 2428 | "%s - kmalloc(%d) failed.\n", __func__, 0x100); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2429 | return -ENOMEM; |
| 2430 | } |
| 2431 | currCmd = cmdBuffer; |
| 2432 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2433 | /* Enable access to divisor latch */ |
| 2434 | MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR, LCR_DL_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2435 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2436 | /* Write the divisor itself */ |
| 2437 | MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLL, LOW8(divisor)); |
| 2438 | MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLM, HIGH8(divisor)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2439 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2440 | /* Restore original value to disable access to divisor latch */ |
| 2441 | MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR, |
| 2442 | edge_port->shadowLCR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2443 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2444 | status = write_cmd_usb(edge_port, cmdBuffer, cmdLen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2445 | if (status) { |
| 2446 | /* something bad happened, let's free up the memory */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2447 | kfree(cmdBuffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2448 | } |
| 2449 | |
| 2450 | return status; |
| 2451 | } |
| 2452 | |
| 2453 | |
| 2454 | /***************************************************************************** |
| 2455 | * calc_baud_rate_divisor |
| 2456 | * this function calculates the proper baud rate divisor for the specified |
| 2457 | * baud rate. |
| 2458 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2459 | static int calc_baud_rate_divisor(int baudrate, int *divisor) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2460 | { |
| 2461 | int i; |
| 2462 | __u16 custom; |
| 2463 | |
| 2464 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2465 | dbg("%s - %d", __func__, baudrate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2466 | |
Tobias Klauser | 52950ed | 2005-12-11 16:20:08 +0100 | [diff] [blame] | 2467 | for (i = 0; i < ARRAY_SIZE(divisor_table); i++) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2468 | if (divisor_table[i].BaudRate == baudrate) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2469 | *divisor = divisor_table[i].Divisor; |
| 2470 | return 0; |
| 2471 | } |
| 2472 | } |
| 2473 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2474 | /* We have tried all of the standard baud rates |
| 2475 | * lets try to calculate the divisor for this baud rate |
| 2476 | * Make sure the baud rate is reasonable */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2477 | if (baudrate > 50 && baudrate < 230400) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2478 | /* get divisor */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2479 | custom = (__u16)((230400L + baudrate/2) / baudrate); |
| 2480 | |
| 2481 | *divisor = custom; |
| 2482 | |
Joe Perches | 759f363 | 2010-02-05 16:50:08 -0800 | [diff] [blame] | 2483 | dbg("%s - Baud %d = %d", __func__, baudrate, custom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2484 | return 0; |
| 2485 | } |
| 2486 | |
| 2487 | return -1; |
| 2488 | } |
| 2489 | |
| 2490 | |
| 2491 | /***************************************************************************** |
| 2492 | * send_cmd_write_uart_register |
Anand Gadiyar | fd589a8 | 2009-07-16 17:13:03 +0200 | [diff] [blame] | 2493 | * this function builds up a uart register message and sends to the device. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2494 | *****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2495 | static int send_cmd_write_uart_register(struct edgeport_port *edge_port, |
| 2496 | __u8 regNum, __u8 regValue) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2497 | { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2498 | struct edgeport_serial *edge_serial = |
| 2499 | usb_get_serial_data(edge_port->port->serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2500 | unsigned char *cmdBuffer; |
| 2501 | unsigned char *currCmd; |
| 2502 | unsigned long cmdLen = 0; |
| 2503 | int status; |
| 2504 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2505 | dbg("%s - write to %s register 0x%02x", |
| 2506 | (regNum == MCR) ? "MCR" : "LCR", __func__, regValue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2507 | |
Adam Kropelin | bc71e47 | 2007-07-29 11:03:29 -0400 | [diff] [blame] | 2508 | if (edge_serial->is_epic && |
| 2509 | !edge_serial->epic_descriptor.Supports.IOSPWriteMCR && |
| 2510 | regNum == MCR) { |
Robert P. J. Day | beb7dd8 | 2007-05-09 07:14:03 +0200 | [diff] [blame] | 2511 | dbg("SendCmdWriteUartReg - Not writing to MCR Register"); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2512 | return 0; |
| 2513 | } |
| 2514 | |
Adam Kropelin | bc71e47 | 2007-07-29 11:03:29 -0400 | [diff] [blame] | 2515 | if (edge_serial->is_epic && |
| 2516 | !edge_serial->epic_descriptor.Supports.IOSPWriteLCR && |
| 2517 | regNum == LCR) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2518 | dbg("SendCmdWriteUartReg - Not writing to LCR Register"); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2519 | return 0; |
| 2520 | } |
| 2521 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2522 | /* Alloc memory for the string of commands. */ |
| 2523 | cmdBuffer = kmalloc(0x10, GFP_ATOMIC); |
| 2524 | if (cmdBuffer == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2525 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2526 | |
| 2527 | currCmd = cmdBuffer; |
| 2528 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2529 | /* Build a cmd in the buffer to write the given register */ |
| 2530 | MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, |
| 2531 | edge_port->port->number - edge_port->port->serial->minor, |
| 2532 | regNum, regValue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2533 | |
| 2534 | status = write_cmd_usb(edge_port, cmdBuffer, cmdLen); |
| 2535 | if (status) { |
| 2536 | /* something bad happened, let's free up the memory */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2537 | kfree(cmdBuffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2538 | } |
| 2539 | |
| 2540 | return status; |
| 2541 | } |
| 2542 | |
| 2543 | |
| 2544 | /***************************************************************************** |
| 2545 | * change_port_settings |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2546 | * This routine is called to set the UART on the device to match the |
| 2547 | * specified new settings. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2548 | *****************************************************************************/ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2549 | |
| 2550 | static void change_port_settings(struct tty_struct *tty, |
| 2551 | struct edgeport_port *edge_port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2552 | { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2553 | struct edgeport_serial *edge_serial = |
| 2554 | usb_get_serial_data(edge_port->port->serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2555 | int baud; |
| 2556 | unsigned cflag; |
| 2557 | __u8 mask = 0xff; |
| 2558 | __u8 lData; |
| 2559 | __u8 lParity; |
| 2560 | __u8 lStop; |
| 2561 | __u8 rxFlow; |
| 2562 | __u8 txFlow; |
| 2563 | int status; |
| 2564 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2565 | dbg("%s - port %d", __func__, edge_port->port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2566 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 2567 | if (!edge_port->open && |
| 2568 | !edge_port->openPending) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2569 | dbg("%s - port not opened", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2570 | return; |
| 2571 | } |
| 2572 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2573 | cflag = tty->termios->c_cflag; |
| 2574 | |
| 2575 | switch (cflag & CSIZE) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2576 | case CS5: |
| 2577 | lData = LCR_BITS_5; mask = 0x1f; |
| 2578 | dbg("%s - data bits = 5", __func__); |
| 2579 | break; |
| 2580 | case CS6: |
| 2581 | lData = LCR_BITS_6; mask = 0x3f; |
| 2582 | dbg("%s - data bits = 6", __func__); |
| 2583 | break; |
| 2584 | case CS7: |
| 2585 | lData = LCR_BITS_7; mask = 0x7f; |
| 2586 | dbg("%s - data bits = 7", __func__); |
| 2587 | break; |
| 2588 | default: |
| 2589 | case CS8: |
| 2590 | lData = LCR_BITS_8; |
| 2591 | dbg("%s - data bits = 8", __func__); |
| 2592 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2593 | } |
| 2594 | |
| 2595 | lParity = LCR_PAR_NONE; |
| 2596 | if (cflag & PARENB) { |
| 2597 | if (cflag & CMSPAR) { |
| 2598 | if (cflag & PARODD) { |
| 2599 | lParity = LCR_PAR_MARK; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2600 | dbg("%s - parity = mark", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2601 | } else { |
| 2602 | lParity = LCR_PAR_SPACE; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2603 | dbg("%s - parity = space", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2604 | } |
| 2605 | } else if (cflag & PARODD) { |
| 2606 | lParity = LCR_PAR_ODD; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2607 | dbg("%s - parity = odd", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2608 | } else { |
| 2609 | lParity = LCR_PAR_EVEN; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2610 | dbg("%s - parity = even", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2611 | } |
| 2612 | } else { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2613 | dbg("%s - parity = none", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2614 | } |
| 2615 | |
| 2616 | if (cflag & CSTOPB) { |
| 2617 | lStop = LCR_STOP_2; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2618 | dbg("%s - stop bits = 2", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2619 | } else { |
| 2620 | lStop = LCR_STOP_1; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2621 | dbg("%s - stop bits = 1", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2622 | } |
| 2623 | |
| 2624 | /* figure out the flow control settings */ |
| 2625 | rxFlow = txFlow = 0x00; |
| 2626 | if (cflag & CRTSCTS) { |
| 2627 | rxFlow |= IOSP_RX_FLOW_RTS; |
| 2628 | txFlow |= IOSP_TX_FLOW_CTS; |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2629 | dbg("%s - RTS/CTS is enabled", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2630 | } else { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2631 | dbg("%s - RTS/CTS is disabled", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2632 | } |
| 2633 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2634 | /* if we are implementing XON/XOFF, set the start and stop character |
| 2635 | in the device */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2636 | if (I_IXOFF(tty) || I_IXON(tty)) { |
| 2637 | unsigned char stop_char = STOP_CHAR(tty); |
| 2638 | unsigned char start_char = START_CHAR(tty); |
| 2639 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2640 | if ((!edge_serial->is_epic) || |
| 2641 | ((edge_serial->is_epic) && |
| 2642 | (edge_serial->epic_descriptor.Supports.IOSPSetXChar))) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2643 | send_iosp_ext_cmd(edge_port, |
| 2644 | IOSP_CMD_SET_XON_CHAR, start_char); |
| 2645 | send_iosp_ext_cmd(edge_port, |
| 2646 | IOSP_CMD_SET_XOFF_CHAR, stop_char); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2647 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2648 | |
| 2649 | /* if we are implementing INBOUND XON/XOFF */ |
| 2650 | if (I_IXOFF(tty)) { |
| 2651 | rxFlow |= IOSP_RX_FLOW_XON_XOFF; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2652 | dbg("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", |
| 2653 | __func__, start_char, stop_char); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2654 | } else { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2655 | dbg("%s - INBOUND XON/XOFF is disabled", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2656 | } |
| 2657 | |
| 2658 | /* if we are implementing OUTBOUND XON/XOFF */ |
| 2659 | if (I_IXON(tty)) { |
| 2660 | txFlow |= IOSP_TX_FLOW_XON_XOFF; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2661 | dbg("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", |
| 2662 | __func__, start_char, stop_char); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2663 | } else { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2664 | dbg("%s - OUTBOUND XON/XOFF is disabled", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2665 | } |
| 2666 | } |
| 2667 | |
| 2668 | /* Set flow control to the configured value */ |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2669 | if ((!edge_serial->is_epic) || |
| 2670 | ((edge_serial->is_epic) && |
| 2671 | (edge_serial->epic_descriptor.Supports.IOSPSetRxFlow))) |
| 2672 | send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_RX_FLOW, rxFlow); |
| 2673 | if ((!edge_serial->is_epic) || |
| 2674 | ((edge_serial->is_epic) && |
| 2675 | (edge_serial->epic_descriptor.Supports.IOSPSetTxFlow))) |
| 2676 | send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_TX_FLOW, txFlow); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2677 | |
| 2678 | |
| 2679 | edge_port->shadowLCR &= ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK); |
| 2680 | edge_port->shadowLCR |= (lData | lParity | lStop); |
| 2681 | |
| 2682 | edge_port->validDataMask = mask; |
| 2683 | |
| 2684 | /* Send the updated LCR value to the EdgePort */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2685 | status = send_cmd_write_uart_register(edge_port, LCR, |
| 2686 | edge_port->shadowLCR); |
| 2687 | if (status != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2688 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2689 | |
| 2690 | /* set up the MCR register and send it to the EdgePort */ |
| 2691 | edge_port->shadowMCR = MCR_MASTER_IE; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2692 | if (cflag & CBAUD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2693 | edge_port->shadowMCR |= (MCR_DTR | MCR_RTS); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2694 | |
| 2695 | status = send_cmd_write_uart_register(edge_port, MCR, |
| 2696 | edge_port->shadowMCR); |
| 2697 | if (status != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2698 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2699 | |
| 2700 | /* Determine divisor based on baud rate */ |
| 2701 | baud = tty_get_baud_rate(tty); |
| 2702 | if (!baud) { |
| 2703 | /* pick a default, any default... */ |
| 2704 | baud = 9600; |
| 2705 | } |
| 2706 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2707 | dbg("%s - baud rate = %d", __func__, baud); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2708 | status = send_cmd_write_baud_rate(edge_port, baud); |
Alan Cox | 6ce073b | 2007-10-18 01:24:25 -0700 | [diff] [blame] | 2709 | if (status == -1) { |
| 2710 | /* Speed change was not possible - put back the old speed */ |
| 2711 | baud = tty_termios_baud_rate(old_termios); |
| 2712 | tty_encode_baud_rate(tty, baud, baud); |
| 2713 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2714 | } |
| 2715 | |
| 2716 | |
| 2717 | /**************************************************************************** |
| 2718 | * unicode_to_ascii |
| 2719 | * Turns a string from Unicode into ASCII. |
| 2720 | * Doesn't do a good job with any characters that are outside the normal |
| 2721 | * ASCII range, but it's only for debugging... |
| 2722 | * NOTE: expects the unicode in LE format |
| 2723 | ****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2724 | static void unicode_to_ascii(char *string, int buflen, |
| 2725 | __le16 *unicode, int unicode_size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2726 | { |
| 2727 | int i; |
| 2728 | |
Pete Zaitcev | ad93375 | 2006-05-22 21:49:44 -0700 | [diff] [blame] | 2729 | if (buflen <= 0) /* never happens, but... */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2730 | return; |
Pete Zaitcev | ad93375 | 2006-05-22 21:49:44 -0700 | [diff] [blame] | 2731 | --buflen; /* space for nul */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2732 | |
Pete Zaitcev | ad93375 | 2006-05-22 21:49:44 -0700 | [diff] [blame] | 2733 | for (i = 0; i < unicode_size; i++) { |
| 2734 | if (i >= buflen) |
| 2735 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2736 | string[i] = (char)(le16_to_cpu(unicode[i])); |
Pete Zaitcev | ad93375 | 2006-05-22 21:49:44 -0700 | [diff] [blame] | 2737 | } |
| 2738 | string[i] = 0x00; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2739 | } |
| 2740 | |
| 2741 | |
| 2742 | /**************************************************************************** |
| 2743 | * get_manufacturing_desc |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2744 | * reads in the manufacturing descriptor and stores it into the serial |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2745 | * structure. |
| 2746 | ****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2747 | static void get_manufacturing_desc(struct edgeport_serial *edge_serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2748 | { |
| 2749 | int response; |
| 2750 | |
| 2751 | dbg("getting manufacturer descriptor"); |
| 2752 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2753 | response = rom_read(edge_serial->serial, |
| 2754 | (EDGE_MANUF_DESC_ADDR & 0xffff0000) >> 16, |
| 2755 | (__u16)(EDGE_MANUF_DESC_ADDR & 0x0000ffff), |
| 2756 | EDGE_MANUF_DESC_LEN, |
| 2757 | (__u8 *)(&edge_serial->manuf_descriptor)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2758 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2759 | if (response < 1) |
| 2760 | dev_err(&edge_serial->serial->dev->dev, |
| 2761 | "error in getting manufacturer descriptor\n"); |
| 2762 | else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2763 | char string[30]; |
| 2764 | dbg("**Manufacturer Descriptor"); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2765 | dbg(" RomSize: %dK", |
| 2766 | edge_serial->manuf_descriptor.RomSize); |
| 2767 | dbg(" RamSize: %dK", |
| 2768 | edge_serial->manuf_descriptor.RamSize); |
| 2769 | dbg(" CpuRev: %d", |
| 2770 | edge_serial->manuf_descriptor.CpuRev); |
| 2771 | dbg(" BoardRev: %d", |
| 2772 | edge_serial->manuf_descriptor.BoardRev); |
| 2773 | dbg(" NumPorts: %d", |
| 2774 | edge_serial->manuf_descriptor.NumPorts); |
| 2775 | dbg(" DescDate: %d/%d/%d", |
| 2776 | edge_serial->manuf_descriptor.DescDate[0], |
| 2777 | edge_serial->manuf_descriptor.DescDate[1], |
| 2778 | edge_serial->manuf_descriptor.DescDate[2]+1900); |
Pete Zaitcev | 4bc203d | 2006-06-06 18:18:33 -0700 | [diff] [blame] | 2779 | unicode_to_ascii(string, sizeof(string), |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2780 | edge_serial->manuf_descriptor.SerialNumber, |
| 2781 | edge_serial->manuf_descriptor.SerNumLength/2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2782 | dbg(" SerialNumber: %s", string); |
Pete Zaitcev | 4bc203d | 2006-06-06 18:18:33 -0700 | [diff] [blame] | 2783 | unicode_to_ascii(string, sizeof(string), |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2784 | edge_serial->manuf_descriptor.AssemblyNumber, |
| 2785 | edge_serial->manuf_descriptor.AssemblyNumLength/2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2786 | dbg(" AssemblyNumber: %s", string); |
Pete Zaitcev | 4bc203d | 2006-06-06 18:18:33 -0700 | [diff] [blame] | 2787 | unicode_to_ascii(string, sizeof(string), |
Pete Zaitcev | ad93375 | 2006-05-22 21:49:44 -0700 | [diff] [blame] | 2788 | edge_serial->manuf_descriptor.OemAssyNumber, |
| 2789 | edge_serial->manuf_descriptor.OemAssyNumLength/2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2790 | dbg(" OemAssyNumber: %s", string); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2791 | dbg(" UartType: %d", |
| 2792 | edge_serial->manuf_descriptor.UartType); |
| 2793 | dbg(" IonPid: %d", |
| 2794 | edge_serial->manuf_descriptor.IonPid); |
| 2795 | dbg(" IonConfig: %d", |
| 2796 | edge_serial->manuf_descriptor.IonConfig); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2797 | } |
| 2798 | } |
| 2799 | |
| 2800 | |
| 2801 | /**************************************************************************** |
| 2802 | * get_boot_desc |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2803 | * reads in the bootloader descriptor and stores it into the serial |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2804 | * structure. |
| 2805 | ****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2806 | static void get_boot_desc(struct edgeport_serial *edge_serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2807 | { |
| 2808 | int response; |
| 2809 | |
| 2810 | dbg("getting boot descriptor"); |
| 2811 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2812 | response = rom_read(edge_serial->serial, |
| 2813 | (EDGE_BOOT_DESC_ADDR & 0xffff0000) >> 16, |
| 2814 | (__u16)(EDGE_BOOT_DESC_ADDR & 0x0000ffff), |
| 2815 | EDGE_BOOT_DESC_LEN, |
| 2816 | (__u8 *)(&edge_serial->boot_descriptor)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2817 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2818 | if (response < 1) |
| 2819 | dev_err(&edge_serial->serial->dev->dev, |
| 2820 | "error in getting boot descriptor\n"); |
| 2821 | else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2822 | dbg("**Boot Descriptor:"); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2823 | dbg(" BootCodeLength: %d", |
| 2824 | le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength)); |
| 2825 | dbg(" MajorVersion: %d", |
| 2826 | edge_serial->boot_descriptor.MajorVersion); |
| 2827 | dbg(" MinorVersion: %d", |
| 2828 | edge_serial->boot_descriptor.MinorVersion); |
| 2829 | dbg(" BuildNumber: %d", |
| 2830 | le16_to_cpu(edge_serial->boot_descriptor.BuildNumber)); |
| 2831 | dbg(" Capabilities: 0x%x", |
| 2832 | le16_to_cpu(edge_serial->boot_descriptor.Capabilities)); |
| 2833 | dbg(" UConfig0: %d", |
| 2834 | edge_serial->boot_descriptor.UConfig0); |
| 2835 | dbg(" UConfig1: %d", |
| 2836 | edge_serial->boot_descriptor.UConfig1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2837 | } |
| 2838 | } |
| 2839 | |
| 2840 | |
| 2841 | /**************************************************************************** |
| 2842 | * load_application_firmware |
| 2843 | * This is called to load the application firmware to the device |
| 2844 | ****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2845 | static void load_application_firmware(struct edgeport_serial *edge_serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2846 | { |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 2847 | const struct ihex_binrec *rec; |
| 2848 | const struct firmware *fw; |
| 2849 | const char *fw_name; |
| 2850 | const char *fw_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2851 | int response; |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 2852 | __u32 Operaddr; |
| 2853 | __u16 build; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2854 | |
| 2855 | switch (edge_serial->product_info.iDownloadFile) { |
| 2856 | case EDGE_DOWNLOAD_FILE_I930: |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 2857 | fw_info = "downloading firmware version (930)"; |
| 2858 | fw_name = "edgeport/down.fw"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2859 | break; |
| 2860 | |
| 2861 | case EDGE_DOWNLOAD_FILE_80251: |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 2862 | fw_info = "downloading firmware version (80251)"; |
| 2863 | fw_name = "edgeport/down2.fw"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2864 | break; |
| 2865 | |
| 2866 | case EDGE_DOWNLOAD_FILE_NONE: |
Joe Perches | 759f363 | 2010-02-05 16:50:08 -0800 | [diff] [blame] | 2867 | dbg("No download file specified, skipping download"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2868 | return; |
| 2869 | |
| 2870 | default: |
| 2871 | return; |
| 2872 | } |
| 2873 | |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 2874 | response = request_ihex_firmware(&fw, fw_name, |
| 2875 | &edge_serial->serial->dev->dev); |
| 2876 | if (response) { |
| 2877 | printk(KERN_ERR "Failed to load image \"%s\" err %d\n", |
| 2878 | fw_name, response); |
| 2879 | return; |
| 2880 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2881 | |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 2882 | rec = (const struct ihex_binrec *)fw->data; |
| 2883 | build = (rec->data[2] << 8) | rec->data[3]; |
| 2884 | |
| 2885 | dbg("%s %d.%d.%d", fw_info, rec->data[0], rec->data[1], build); |
| 2886 | |
Bjørn Mork | 271c115 | 2011-01-17 14:19:37 +0100 | [diff] [blame] | 2887 | edge_serial->product_info.FirmwareMajorVersion = rec->data[0]; |
| 2888 | edge_serial->product_info.FirmwareMinorVersion = rec->data[1]; |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 2889 | edge_serial->product_info.FirmwareBuildNumber = cpu_to_le16(build); |
| 2890 | |
| 2891 | for (rec = ihex_next_binrec(rec); rec; |
| 2892 | rec = ihex_next_binrec(rec)) { |
| 2893 | Operaddr = be32_to_cpu(rec->addr); |
| 2894 | response = sram_write(edge_serial->serial, |
| 2895 | Operaddr >> 16, |
| 2896 | Operaddr & 0xFFFF, |
| 2897 | be16_to_cpu(rec->len), |
| 2898 | &rec->data[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2899 | if (response < 0) { |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 2900 | dev_err(&edge_serial->serial->dev->dev, |
| 2901 | "sram_write failed (%x, %x, %d)\n", |
| 2902 | Operaddr >> 16, Operaddr & 0xFFFF, |
| 2903 | be16_to_cpu(rec->len)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2904 | break; |
| 2905 | } |
| 2906 | } |
| 2907 | |
| 2908 | dbg("sending exec_dl_code"); |
| 2909 | response = usb_control_msg (edge_serial->serial->dev, |
| 2910 | usb_sndctrlpipe(edge_serial->serial->dev, 0), |
| 2911 | USB_REQUEST_ION_EXEC_DL_CODE, |
| 2912 | 0x40, 0x4000, 0x0001, NULL, 0, 3000); |
| 2913 | |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 2914 | release_firmware(fw); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2915 | } |
| 2916 | |
| 2917 | |
| 2918 | /**************************************************************************** |
| 2919 | * edge_startup |
| 2920 | ****************************************************************************/ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2921 | static int edge_startup(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2922 | { |
| 2923 | struct edgeport_serial *edge_serial; |
| 2924 | struct edgeport_port *edge_port; |
| 2925 | struct usb_device *dev; |
Chris Lund | bfd5df3 | 2006-06-03 13:58:19 -0700 | [diff] [blame] | 2926 | int i, j; |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2927 | int response; |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 2928 | bool interrupt_in_found; |
| 2929 | bool bulk_in_found; |
| 2930 | bool bulk_out_found; |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2931 | static __u32 descriptor[3] = { EDGE_COMPATIBILITY_MASK0, |
| 2932 | EDGE_COMPATIBILITY_MASK1, |
| 2933 | EDGE_COMPATIBILITY_MASK2 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2934 | |
| 2935 | dev = serial->dev; |
| 2936 | |
| 2937 | /* create our private serial structure */ |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 2938 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2939 | if (edge_serial == NULL) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2940 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2941 | return -ENOMEM; |
| 2942 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2943 | spin_lock_init(&edge_serial->es_lock); |
| 2944 | edge_serial->serial = serial; |
| 2945 | usb_set_serial_data(serial, edge_serial); |
| 2946 | |
| 2947 | /* get the name for the device from the device */ |
Dan Carpenter | f10718f | 2010-01-25 14:53:33 +0300 | [diff] [blame] | 2948 | i = usb_string(dev, dev->descriptor.iManufacturer, |
Pete Zaitcev | ad93375 | 2006-05-22 21:49:44 -0700 | [diff] [blame] | 2949 | &edge_serial->name[0], MAX_NAME_LEN+1); |
Dan Carpenter | f10718f | 2010-01-25 14:53:33 +0300 | [diff] [blame] | 2950 | if (i < 0) |
| 2951 | i = 0; |
Pete Zaitcev | ad93375 | 2006-05-22 21:49:44 -0700 | [diff] [blame] | 2952 | edge_serial->name[i++] = ' '; |
Dan Carpenter | f10718f | 2010-01-25 14:53:33 +0300 | [diff] [blame] | 2953 | usb_string(dev, dev->descriptor.iProduct, |
Pete Zaitcev | ad93375 | 2006-05-22 21:49:44 -0700 | [diff] [blame] | 2954 | &edge_serial->name[i], MAX_NAME_LEN+2 - i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2955 | |
| 2956 | dev_info(&serial->dev->dev, "%s detected\n", edge_serial->name); |
| 2957 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2958 | /* Read the epic descriptor */ |
| 2959 | if (get_epic_descriptor(edge_serial) <= 0) { |
| 2960 | /* memcpy descriptor to Supports structures */ |
| 2961 | memcpy(&edge_serial->epic_descriptor.Supports, descriptor, |
| 2962 | sizeof(struct edge_compatibility_bits)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2963 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2964 | /* get the manufacturing descriptor for this device */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2965 | get_manufacturing_desc(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2966 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2967 | /* get the boot descriptor */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2968 | get_boot_desc(edge_serial); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2969 | |
| 2970 | get_product_info(edge_serial); |
| 2971 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2972 | |
| 2973 | /* set the number of ports from the manufacturing description */ |
| 2974 | /* serial->num_ports = serial->product_info.NumPorts; */ |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2975 | if ((!edge_serial->is_epic) && |
| 2976 | (edge_serial->product_info.NumPorts != serial->num_ports)) { |
| 2977 | dev_warn(&serial->dev->dev, "Device Reported %d serial ports " |
| 2978 | "vs. core thinking we have %d ports, email " |
Joe Perches | 898eb71 | 2007-10-18 03:06:30 -0700 | [diff] [blame] | 2979 | "greg@kroah.com this information.\n", |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2980 | edge_serial->product_info.NumPorts, |
| 2981 | serial->num_ports); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2982 | } |
| 2983 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2984 | dbg("%s - time 1 %ld", __func__, jiffies); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2985 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2986 | /* If not an EPiC device */ |
| 2987 | if (!edge_serial->is_epic) { |
| 2988 | /* now load the application firmware into this device */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2989 | load_application_firmware(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2990 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2991 | dbg("%s - time 2 %ld", __func__, jiffies); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2992 | |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2993 | /* Check current Edgeport EEPROM and update if necessary */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2994 | update_edgeport_E2PROM(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2995 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2996 | dbg("%s - time 3 %ld", __func__, jiffies); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 2997 | |
| 2998 | /* set the configuration to use #1 */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 2999 | /* dbg("set_configuration 1"); */ |
| 3000 | /* usb_set_configuration (dev, 1); */ |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3001 | } |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 3002 | dbg(" FirmwareMajorVersion %d.%d.%d", |
| 3003 | edge_serial->product_info.FirmwareMajorVersion, |
| 3004 | edge_serial->product_info.FirmwareMinorVersion, |
| 3005 | le16_to_cpu(edge_serial->product_info.FirmwareBuildNumber)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3006 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3007 | /* we set up the pointers to the endpoints in the edge_open function, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3008 | * as the structures aren't created yet. */ |
| 3009 | |
| 3010 | /* set up our port private structures */ |
| 3011 | for (i = 0; i < serial->num_ports; ++i) { |
Julia Lawall | 1ac93a3 | 2010-05-13 22:00:40 +0200 | [diff] [blame] | 3012 | edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3013 | if (edge_port == NULL) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3014 | dev_err(&serial->dev->dev, "%s - Out of memory\n", |
| 3015 | __func__); |
Chris Lund | bfd5df3 | 2006-06-03 13:58:19 -0700 | [diff] [blame] | 3016 | for (j = 0; j < i; ++j) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3017 | kfree(usb_get_serial_port_data(serial->port[j])); |
| 3018 | usb_set_serial_port_data(serial->port[j], |
| 3019 | NULL); |
Chris Lund | bfd5df3 | 2006-06-03 13:58:19 -0700 | [diff] [blame] | 3020 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3021 | usb_set_serial_data(serial, NULL); |
| 3022 | kfree(edge_serial); |
| 3023 | return -ENOMEM; |
| 3024 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3025 | spin_lock_init(&edge_port->ep_lock); |
| 3026 | edge_port->port = serial->port[i]; |
| 3027 | usb_set_serial_port_data(serial->port[i], edge_port); |
| 3028 | } |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3029 | |
| 3030 | response = 0; |
| 3031 | |
| 3032 | if (edge_serial->is_epic) { |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3033 | /* EPIC thing, set up our interrupt polling now and our read |
| 3034 | * urb, so that the device knows it really is connected. */ |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 3035 | interrupt_in_found = bulk_in_found = bulk_out_found = false; |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3036 | for (i = 0; i < serial->interface->altsetting[0] |
| 3037 | .desc.bNumEndpoints; ++i) { |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3038 | struct usb_endpoint_descriptor *endpoint; |
| 3039 | int buffer_size; |
| 3040 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3041 | endpoint = &serial->interface->altsetting[0]. |
| 3042 | endpoint[i].desc; |
Kuninori Morimoto | 29cc889 | 2011-08-23 03:12:03 -0700 | [diff] [blame] | 3043 | buffer_size = usb_endpoint_maxp(endpoint); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 3044 | if (!interrupt_in_found && |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3045 | (usb_endpoint_is_int_in(endpoint))) { |
| 3046 | /* we found a interrupt in endpoint */ |
| 3047 | dbg("found interrupt in"); |
| 3048 | |
| 3049 | /* not set up yet, so do it now */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3050 | edge_serial->interrupt_read_urb = |
| 3051 | usb_alloc_urb(0, GFP_KERNEL); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3052 | if (!edge_serial->interrupt_read_urb) { |
Greg Kroah-Hartman | 194343d | 2008-08-20 16:56:34 -0700 | [diff] [blame] | 3053 | dev_err(&dev->dev, "out of memory\n"); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3054 | return -ENOMEM; |
| 3055 | } |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3056 | edge_serial->interrupt_in_buffer = |
| 3057 | kmalloc(buffer_size, GFP_KERNEL); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3058 | if (!edge_serial->interrupt_in_buffer) { |
Greg Kroah-Hartman | 194343d | 2008-08-20 16:56:34 -0700 | [diff] [blame] | 3059 | dev_err(&dev->dev, "out of memory\n"); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3060 | usb_free_urb(edge_serial->interrupt_read_urb); |
| 3061 | return -ENOMEM; |
| 3062 | } |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3063 | edge_serial->interrupt_in_endpoint = |
| 3064 | endpoint->bEndpointAddress; |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3065 | |
| 3066 | /* set up our interrupt urb */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3067 | usb_fill_int_urb( |
| 3068 | edge_serial->interrupt_read_urb, |
| 3069 | dev, |
| 3070 | usb_rcvintpipe(dev, |
| 3071 | endpoint->bEndpointAddress), |
| 3072 | edge_serial->interrupt_in_buffer, |
| 3073 | buffer_size, |
| 3074 | edge_interrupt_callback, |
| 3075 | edge_serial, |
| 3076 | endpoint->bInterval); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3077 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 3078 | interrupt_in_found = true; |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3079 | } |
| 3080 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 3081 | if (!bulk_in_found && |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3082 | (usb_endpoint_is_bulk_in(endpoint))) { |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3083 | /* we found a bulk in endpoint */ |
| 3084 | dbg("found bulk in"); |
| 3085 | |
| 3086 | /* not set up yet, so do it now */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3087 | edge_serial->read_urb = |
| 3088 | usb_alloc_urb(0, GFP_KERNEL); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3089 | if (!edge_serial->read_urb) { |
Greg Kroah-Hartman | 194343d | 2008-08-20 16:56:34 -0700 | [diff] [blame] | 3090 | dev_err(&dev->dev, "out of memory\n"); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3091 | return -ENOMEM; |
| 3092 | } |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3093 | edge_serial->bulk_in_buffer = |
| 3094 | kmalloc(buffer_size, GFP_KERNEL); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3095 | if (!edge_serial->bulk_in_buffer) { |
Greg Kroah-Hartman | 194343d | 2008-08-20 16:56:34 -0700 | [diff] [blame] | 3096 | dev_err(&dev->dev, "out of memory\n"); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3097 | usb_free_urb(edge_serial->read_urb); |
| 3098 | return -ENOMEM; |
| 3099 | } |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3100 | edge_serial->bulk_in_endpoint = |
| 3101 | endpoint->bEndpointAddress; |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3102 | |
| 3103 | /* set up our bulk in urb */ |
| 3104 | usb_fill_bulk_urb(edge_serial->read_urb, dev, |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3105 | usb_rcvbulkpipe(dev, |
| 3106 | endpoint->bEndpointAddress), |
| 3107 | edge_serial->bulk_in_buffer, |
Kuninori Morimoto | 29cc889 | 2011-08-23 03:12:03 -0700 | [diff] [blame] | 3108 | usb_endpoint_maxp(endpoint), |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3109 | edge_bulk_in_callback, |
| 3110 | edge_serial); |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 3111 | bulk_in_found = true; |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3112 | } |
| 3113 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 3114 | if (!bulk_out_found && |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3115 | (usb_endpoint_is_bulk_out(endpoint))) { |
| 3116 | /* we found a bulk out endpoint */ |
| 3117 | dbg("found bulk out"); |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3118 | edge_serial->bulk_out_endpoint = |
| 3119 | endpoint->bEndpointAddress; |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 3120 | bulk_out_found = true; |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3121 | } |
| 3122 | } |
| 3123 | |
Richard Knutsson | cb8eaa8 | 2007-03-17 01:35:53 +0100 | [diff] [blame] | 3124 | if (!interrupt_in_found || !bulk_in_found || !bulk_out_found) { |
Greg Kroah-Hartman | 194343d | 2008-08-20 16:56:34 -0700 | [diff] [blame] | 3125 | dev_err(&dev->dev, "Error - the proper endpoints " |
| 3126 | "were not found!\n"); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3127 | return -ENODEV; |
| 3128 | } |
| 3129 | |
| 3130 | /* start interrupt read for this edgeport this interrupt will |
| 3131 | * continue as long as the edgeport is connected */ |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3132 | response = usb_submit_urb(edge_serial->interrupt_read_urb, |
| 3133 | GFP_KERNEL); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3134 | if (response) |
Greg Kroah-Hartman | 194343d | 2008-08-20 16:56:34 -0700 | [diff] [blame] | 3135 | dev_err(&dev->dev, |
| 3136 | "%s - Error %d submitting control urb\n", |
| 3137 | __func__, response); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3138 | } |
| 3139 | return response; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3140 | } |
| 3141 | |
| 3142 | |
| 3143 | /**************************************************************************** |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 3144 | * edge_disconnect |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3145 | * This function is called whenever the device is removed from the usb bus. |
| 3146 | ****************************************************************************/ |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 3147 | static void edge_disconnect(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3148 | { |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3149 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3150 | |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 3151 | dbg("%s", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3152 | |
| 3153 | /* stop reads and writes on all ports */ |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3154 | /* free up our endpoint stuff */ |
| 3155 | if (edge_serial->is_epic) { |
Oliver Neukum | 74ac07e | 2007-06-13 18:50:41 +0200 | [diff] [blame] | 3156 | usb_kill_urb(edge_serial->interrupt_read_urb); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3157 | usb_free_urb(edge_serial->interrupt_read_urb); |
| 3158 | kfree(edge_serial->interrupt_in_buffer); |
| 3159 | |
Oliver Neukum | 74ac07e | 2007-06-13 18:50:41 +0200 | [diff] [blame] | 3160 | usb_kill_urb(edge_serial->read_urb); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3161 | usb_free_urb(edge_serial->read_urb); |
| 3162 | kfree(edge_serial->bulk_in_buffer); |
| 3163 | } |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 3164 | } |
| 3165 | |
| 3166 | |
| 3167 | /**************************************************************************** |
| 3168 | * edge_release |
| 3169 | * This function is called when the device structure is deallocated. |
| 3170 | ****************************************************************************/ |
| 3171 | static void edge_release(struct usb_serial *serial) |
| 3172 | { |
| 3173 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); |
| 3174 | int i; |
| 3175 | |
| 3176 | dbg("%s", __func__); |
| 3177 | |
| 3178 | for (i = 0; i < serial->num_ports; ++i) |
| 3179 | kfree(usb_get_serial_port_data(serial->port[i])); |
Greg Kroah-Hartman | 6e8cf77 | 2007-01-18 00:20:19 -0800 | [diff] [blame] | 3180 | |
| 3181 | kfree(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3182 | } |
| 3183 | |
Greg Kroah-Hartman | 68e2411 | 2012-05-08 15:46:14 -0700 | [diff] [blame] | 3184 | module_usb_serial_driver(serial_drivers, id_table_combined); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3185 | |
Alan Cox | 03f0dbf | 2008-07-22 11:16:34 +0100 | [diff] [blame] | 3186 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 3187 | MODULE_DESCRIPTION(DRIVER_DESC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3188 | MODULE_LICENSE("GPL"); |
Jaswinder Singh | 5b9ea93 | 2008-07-03 17:00:23 +0530 | [diff] [blame] | 3189 | MODULE_FIRMWARE("edgeport/boot.fw"); |
| 3190 | MODULE_FIRMWARE("edgeport/boot2.fw"); |
| 3191 | MODULE_FIRMWARE("edgeport/down.fw"); |
| 3192 | MODULE_FIRMWARE("edgeport/down2.fw"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3193 | |
| 3194 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 3195 | MODULE_PARM_DESC(debug, "Debug enabled or not"); |