Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: c4.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $ |
| 2 | * |
| 3 | * Module for AVM C4 & C2 card. |
| 4 | * |
| 5 | * Copyright 1999 by Carsten Paeth <calle@calle.de> |
| 6 | * |
| 7 | * This software may be used and distributed according to the terms |
| 8 | * of the GNU General Public License, incorporated herein by reference. |
| 9 | * |
| 10 | */ |
| 11 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <linux/module.h> |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/skbuff.h> |
| 15 | #include <linux/delay.h> |
| 16 | #include <linux/mm.h> |
| 17 | #include <linux/interrupt.h> |
| 18 | #include <linux/ioport.h> |
| 19 | #include <linux/pci.h> |
| 20 | #include <linux/capi.h> |
| 21 | #include <linux/kernelcapi.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <asm/io.h> |
| 24 | #include <asm/uaccess.h> |
| 25 | #include <linux/netdevice.h> |
| 26 | #include <linux/isdn/capicmd.h> |
| 27 | #include <linux/isdn/capiutil.h> |
| 28 | #include <linux/isdn/capilli.h> |
| 29 | #include "avmcard.h" |
| 30 | |
Robert P. J. Day | 26fb5c5 | 2007-02-12 00:53:20 -0800 | [diff] [blame] | 31 | #undef AVM_C4_DEBUG |
| 32 | #undef AVM_C4_POLLDEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | |
| 34 | /* ------------------------------------------------------------- */ |
| 35 | |
| 36 | static char *revision = "$Revision: 1.1.2.2 $"; |
| 37 | |
| 38 | /* ------------------------------------------------------------- */ |
| 39 | |
| 40 | static int suppress_pollack; |
| 41 | |
| 42 | static struct pci_device_id c4_pci_tbl[] = { |
| 43 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4, 0, 0, (unsigned long)4 }, |
| 44 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2, 0, 0, (unsigned long)2 }, |
| 45 | { } /* Terminating entry */ |
| 46 | }; |
| 47 | |
| 48 | MODULE_DEVICE_TABLE(pci, c4_pci_tbl); |
| 49 | MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM C2/C4 cards"); |
| 50 | MODULE_AUTHOR("Carsten Paeth"); |
| 51 | MODULE_LICENSE("GPL"); |
Rusty Russell | 8d3b33f | 2006-03-25 03:07:05 -0800 | [diff] [blame] | 52 | module_param(suppress_pollack, bool, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
| 54 | /* ------------------------------------------------------------- */ |
| 55 | |
| 56 | static void c4_dispatch_tx(avmcard *card); |
| 57 | |
| 58 | /* ------------------------------------------------------------- */ |
| 59 | |
| 60 | #define DC21285_DRAM_A0MR 0x40000000 |
| 61 | #define DC21285_DRAM_A1MR 0x40004000 |
| 62 | #define DC21285_DRAM_A2MR 0x40008000 |
| 63 | #define DC21285_DRAM_A3MR 0x4000C000 |
| 64 | |
| 65 | #define CAS_OFFSET 0x88 |
| 66 | |
| 67 | #define DC21285_ARMCSR_BASE 0x42000000 |
| 68 | |
| 69 | #define PCI_OUT_INT_STATUS 0x30 |
| 70 | #define PCI_OUT_INT_MASK 0x34 |
| 71 | #define MAILBOX_0 0x50 |
| 72 | #define MAILBOX_1 0x54 |
| 73 | #define MAILBOX_2 0x58 |
| 74 | #define MAILBOX_3 0x5C |
| 75 | #define DOORBELL 0x60 |
| 76 | #define DOORBELL_SETUP 0x64 |
| 77 | |
| 78 | #define CHAN_1_CONTROL 0x90 |
| 79 | #define CHAN_2_CONTROL 0xB0 |
| 80 | #define DRAM_TIMING 0x10C |
| 81 | #define DRAM_ADDR_SIZE_0 0x110 |
| 82 | #define DRAM_ADDR_SIZE_1 0x114 |
| 83 | #define DRAM_ADDR_SIZE_2 0x118 |
| 84 | #define DRAM_ADDR_SIZE_3 0x11C |
| 85 | #define SA_CONTROL 0x13C |
| 86 | #define XBUS_CYCLE 0x148 |
| 87 | #define XBUS_STROBE 0x14C |
| 88 | #define DBELL_PCI_MASK 0x150 |
| 89 | #define DBELL_SA_MASK 0x154 |
| 90 | |
| 91 | #define SDRAM_SIZE 0x1000000 |
| 92 | |
| 93 | /* ------------------------------------------------------------- */ |
| 94 | |
| 95 | #define MBOX_PEEK_POKE MAILBOX_0 |
| 96 | |
| 97 | #define DBELL_ADDR 0x01 |
| 98 | #define DBELL_DATA 0x02 |
| 99 | #define DBELL_RNWR 0x40 |
| 100 | #define DBELL_INIT 0x80 |
| 101 | |
| 102 | /* ------------------------------------------------------------- */ |
| 103 | |
| 104 | #define MBOX_UP_ADDR MAILBOX_0 |
| 105 | #define MBOX_UP_LEN MAILBOX_1 |
| 106 | #define MBOX_DOWN_ADDR MAILBOX_2 |
| 107 | #define MBOX_DOWN_LEN MAILBOX_3 |
| 108 | |
| 109 | #define DBELL_UP_HOST 0x00000100 |
| 110 | #define DBELL_UP_ARM 0x00000200 |
| 111 | #define DBELL_DOWN_HOST 0x00000400 |
| 112 | #define DBELL_DOWN_ARM 0x00000800 |
| 113 | #define DBELL_RESET_HOST 0x40000000 |
| 114 | #define DBELL_RESET_ARM 0x80000000 |
| 115 | |
| 116 | /* ------------------------------------------------------------- */ |
| 117 | |
| 118 | #define DRAM_TIMING_DEF 0x001A01A5 |
| 119 | #define DRAM_AD_SZ_DEF0 0x00000045 |
| 120 | #define DRAM_AD_SZ_NULL 0x00000000 |
| 121 | |
| 122 | #define SA_CTL_ALLRIGHT 0x64AA0271 |
| 123 | |
| 124 | #define INIT_XBUS_CYCLE 0x100016DB |
| 125 | #define INIT_XBUS_STROBE 0xF1F1F1F1 |
| 126 | |
| 127 | /* ------------------------------------------------------------- */ |
| 128 | |
| 129 | #define RESET_TIMEOUT (15*HZ) /* 15 sec */ |
| 130 | #define PEEK_POKE_TIMEOUT (HZ/10) /* 0.1 sec */ |
| 131 | |
| 132 | /* ------------------------------------------------------------- */ |
| 133 | |
| 134 | #define c4outmeml(addr, value) writel(value, addr) |
| 135 | #define c4inmeml(addr) readl(addr) |
| 136 | #define c4outmemw(addr, value) writew(value, addr) |
| 137 | #define c4inmemw(addr) readw(addr) |
| 138 | #define c4outmemb(addr, value) writeb(value, addr) |
| 139 | #define c4inmemb(addr) readb(addr) |
| 140 | |
| 141 | /* ------------------------------------------------------------- */ |
| 142 | |
| 143 | static inline int wait_for_doorbell(avmcard *card, unsigned long t) |
| 144 | { |
| 145 | unsigned long stop; |
| 146 | |
| 147 | stop = jiffies + t; |
| 148 | while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) { |
| 149 | if (!time_before(jiffies, stop)) |
| 150 | return -1; |
| 151 | mb(); |
| 152 | } |
| 153 | return 0; |
| 154 | } |
| 155 | |
| 156 | static int c4_poke(avmcard *card, unsigned long off, unsigned long value) |
| 157 | { |
| 158 | |
| 159 | if (wait_for_doorbell(card, HZ/10) < 0) |
| 160 | return -1; |
| 161 | |
| 162 | c4outmeml(card->mbase+MBOX_PEEK_POKE, off); |
| 163 | c4outmeml(card->mbase+DOORBELL, DBELL_ADDR); |
| 164 | |
| 165 | if (wait_for_doorbell(card, HZ/10) < 0) |
| 166 | return -1; |
| 167 | |
| 168 | c4outmeml(card->mbase+MBOX_PEEK_POKE, value); |
| 169 | c4outmeml(card->mbase+DOORBELL, DBELL_DATA | DBELL_ADDR); |
| 170 | |
| 171 | return 0; |
| 172 | } |
| 173 | |
| 174 | static int c4_peek(avmcard *card, unsigned long off, unsigned long *valuep) |
| 175 | { |
| 176 | if (wait_for_doorbell(card, HZ/10) < 0) |
| 177 | return -1; |
| 178 | |
| 179 | c4outmeml(card->mbase+MBOX_PEEK_POKE, off); |
| 180 | c4outmeml(card->mbase+DOORBELL, DBELL_RNWR | DBELL_ADDR); |
| 181 | |
| 182 | if (wait_for_doorbell(card, HZ/10) < 0) |
| 183 | return -1; |
| 184 | |
| 185 | *valuep = c4inmeml(card->mbase+MBOX_PEEK_POKE); |
| 186 | |
| 187 | return 0; |
| 188 | } |
| 189 | |
| 190 | /* ------------------------------------------------------------- */ |
| 191 | |
| 192 | static int c4_load_t4file(avmcard *card, capiloaddatapart * t4file) |
| 193 | { |
| 194 | u32 val; |
| 195 | unsigned char *dp; |
| 196 | u_int left; |
| 197 | u32 loadoff = 0; |
| 198 | |
| 199 | dp = t4file->data; |
| 200 | left = t4file->len; |
| 201 | while (left >= sizeof(u32)) { |
| 202 | if (t4file->user) { |
| 203 | if (copy_from_user(&val, dp, sizeof(val))) |
| 204 | return -EFAULT; |
| 205 | } else { |
| 206 | memcpy(&val, dp, sizeof(val)); |
| 207 | } |
| 208 | if (c4_poke(card, loadoff, val)) { |
| 209 | printk(KERN_ERR "%s: corrupted firmware file ?\n", |
| 210 | card->name); |
| 211 | return -EIO; |
| 212 | } |
| 213 | left -= sizeof(u32); |
| 214 | dp += sizeof(u32); |
| 215 | loadoff += sizeof(u32); |
| 216 | } |
| 217 | if (left) { |
| 218 | val = 0; |
| 219 | if (t4file->user) { |
| 220 | if (copy_from_user(&val, dp, left)) |
| 221 | return -EFAULT; |
| 222 | } else { |
| 223 | memcpy(&val, dp, left); |
| 224 | } |
| 225 | if (c4_poke(card, loadoff, val)) { |
| 226 | printk(KERN_ERR "%s: corrupted firmware file ?\n", |
| 227 | card->name); |
| 228 | return -EIO; |
| 229 | } |
| 230 | } |
| 231 | return 0; |
| 232 | } |
| 233 | |
| 234 | /* ------------------------------------------------------------- */ |
| 235 | |
| 236 | static inline void _put_byte(void **pp, u8 val) |
| 237 | { |
| 238 | u8 *s = *pp; |
| 239 | *s++ = val; |
| 240 | *pp = s; |
| 241 | } |
| 242 | |
| 243 | static inline void _put_word(void **pp, u32 val) |
| 244 | { |
| 245 | u8 *s = *pp; |
| 246 | *s++ = val & 0xff; |
| 247 | *s++ = (val >> 8) & 0xff; |
| 248 | *s++ = (val >> 16) & 0xff; |
| 249 | *s++ = (val >> 24) & 0xff; |
| 250 | *pp = s; |
| 251 | } |
| 252 | |
| 253 | static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len) |
| 254 | { |
| 255 | unsigned i = len; |
| 256 | _put_word(pp, i); |
| 257 | while (i-- > 0) |
| 258 | _put_byte(pp, *dp++); |
| 259 | } |
| 260 | |
| 261 | static inline u8 _get_byte(void **pp) |
| 262 | { |
| 263 | u8 *s = *pp; |
| 264 | u8 val; |
| 265 | val = *s++; |
| 266 | *pp = s; |
| 267 | return val; |
| 268 | } |
| 269 | |
| 270 | static inline u32 _get_word(void **pp) |
| 271 | { |
| 272 | u8 *s = *pp; |
| 273 | u32 val; |
| 274 | val = *s++; |
| 275 | val |= (*s++ << 8); |
| 276 | val |= (*s++ << 16); |
| 277 | val |= (*s++ << 24); |
| 278 | *pp = s; |
| 279 | return val; |
| 280 | } |
| 281 | |
| 282 | static inline u32 _get_slice(void **pp, unsigned char *dp) |
| 283 | { |
| 284 | unsigned int len, i; |
| 285 | |
| 286 | len = i = _get_word(pp); |
| 287 | while (i-- > 0) *dp++ = _get_byte(pp); |
| 288 | return len; |
| 289 | } |
| 290 | |
| 291 | /* ------------------------------------------------------------- */ |
| 292 | |
| 293 | static void c4_reset(avmcard *card) |
| 294 | { |
| 295 | unsigned long stop; |
| 296 | |
| 297 | c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM); |
| 298 | |
| 299 | stop = jiffies + HZ*10; |
| 300 | while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) { |
| 301 | if (!time_before(jiffies, stop)) |
| 302 | return; |
| 303 | c4outmeml(card->mbase+DOORBELL, DBELL_ADDR); |
| 304 | mb(); |
| 305 | } |
| 306 | |
| 307 | c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0); |
| 308 | c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0); |
| 309 | } |
| 310 | |
| 311 | /* ------------------------------------------------------------- */ |
| 312 | |
| 313 | static int c4_detect(avmcard *card) |
| 314 | { |
| 315 | unsigned long stop, dummy; |
| 316 | |
| 317 | c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c); |
| 318 | if (c4inmeml(card->mbase+PCI_OUT_INT_MASK) != 0x0c) |
| 319 | return 1; |
| 320 | |
| 321 | c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM); |
| 322 | |
| 323 | stop = jiffies + HZ*10; |
| 324 | while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) { |
| 325 | if (!time_before(jiffies, stop)) |
| 326 | return 2; |
| 327 | c4outmeml(card->mbase+DOORBELL, DBELL_ADDR); |
| 328 | mb(); |
| 329 | } |
| 330 | |
| 331 | c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0); |
| 332 | c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0); |
| 333 | |
| 334 | c4outmeml(card->mbase+MAILBOX_0, 0x55aa55aa); |
| 335 | if (c4inmeml(card->mbase+MAILBOX_0) != 0x55aa55aa) return 3; |
| 336 | |
| 337 | c4outmeml(card->mbase+MAILBOX_0, 0xaa55aa55); |
| 338 | if (c4inmeml(card->mbase+MAILBOX_0) != 0xaa55aa55) return 4; |
| 339 | |
| 340 | if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_SA_MASK, 0)) return 5; |
| 341 | if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_PCI_MASK, 0)) return 6; |
| 342 | if (c4_poke(card, DC21285_ARMCSR_BASE+SA_CONTROL, SA_CTL_ALLRIGHT)) |
| 343 | return 7; |
| 344 | if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_CYCLE, INIT_XBUS_CYCLE)) |
| 345 | return 8; |
| 346 | if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_STROBE, INIT_XBUS_STROBE)) |
| 347 | return 8; |
| 348 | if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, 0)) return 9; |
| 349 | |
| 350 | mdelay(1); |
| 351 | |
| 352 | if (c4_peek(card, DC21285_DRAM_A0MR, &dummy)) return 10; |
| 353 | if (c4_peek(card, DC21285_DRAM_A1MR, &dummy)) return 11; |
| 354 | if (c4_peek(card, DC21285_DRAM_A2MR, &dummy)) return 12; |
| 355 | if (c4_peek(card, DC21285_DRAM_A3MR, &dummy)) return 13; |
| 356 | |
| 357 | if (c4_poke(card, DC21285_DRAM_A0MR+CAS_OFFSET, 0)) return 14; |
| 358 | if (c4_poke(card, DC21285_DRAM_A1MR+CAS_OFFSET, 0)) return 15; |
| 359 | if (c4_poke(card, DC21285_DRAM_A2MR+CAS_OFFSET, 0)) return 16; |
| 360 | if (c4_poke(card, DC21285_DRAM_A3MR+CAS_OFFSET, 0)) return 17; |
| 361 | |
| 362 | mdelay(1); |
| 363 | |
| 364 | if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, DRAM_TIMING_DEF)) |
| 365 | return 18; |
| 366 | |
| 367 | if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_0,DRAM_AD_SZ_DEF0)) |
| 368 | return 19; |
| 369 | if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_1,DRAM_AD_SZ_NULL)) |
| 370 | return 20; |
| 371 | if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_2,DRAM_AD_SZ_NULL)) |
| 372 | return 21; |
| 373 | if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_3,DRAM_AD_SZ_NULL)) |
| 374 | return 22; |
| 375 | |
| 376 | /* Transputer test */ |
| 377 | |
| 378 | if ( c4_poke(card, 0x000000, 0x11111111) |
| 379 | || c4_poke(card, 0x400000, 0x22222222) |
| 380 | || c4_poke(card, 0x800000, 0x33333333) |
| 381 | || c4_poke(card, 0xC00000, 0x44444444)) |
| 382 | return 23; |
| 383 | |
| 384 | if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x11111111 |
| 385 | || c4_peek(card, 0x400000, &dummy) || dummy != 0x22222222 |
| 386 | || c4_peek(card, 0x800000, &dummy) || dummy != 0x33333333 |
| 387 | || c4_peek(card, 0xC00000, &dummy) || dummy != 0x44444444) |
| 388 | return 24; |
| 389 | |
| 390 | if ( c4_poke(card, 0x000000, 0x55555555) |
| 391 | || c4_poke(card, 0x400000, 0x66666666) |
| 392 | || c4_poke(card, 0x800000, 0x77777777) |
| 393 | || c4_poke(card, 0xC00000, 0x88888888)) |
| 394 | return 25; |
| 395 | |
| 396 | if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x55555555 |
| 397 | || c4_peek(card, 0x400000, &dummy) || dummy != 0x66666666 |
| 398 | || c4_peek(card, 0x800000, &dummy) || dummy != 0x77777777 |
| 399 | || c4_peek(card, 0xC00000, &dummy) || dummy != 0x88888888) |
| 400 | return 26; |
| 401 | |
| 402 | return 0; |
| 403 | } |
| 404 | |
| 405 | /* ------------------------------------------------------------- */ |
| 406 | |
| 407 | static void c4_dispatch_tx(avmcard *card) |
| 408 | { |
| 409 | avmcard_dmainfo *dma = card->dma; |
| 410 | struct sk_buff *skb; |
| 411 | u8 cmd, subcmd; |
| 412 | u16 len; |
| 413 | u32 txlen; |
| 414 | void *p; |
| 415 | |
| 416 | |
| 417 | if (card->csr & DBELL_DOWN_ARM) { /* tx busy */ |
| 418 | return; |
| 419 | } |
| 420 | |
| 421 | skb = skb_dequeue(&dma->send_queue); |
| 422 | if (!skb) { |
Robert P. J. Day | 26fb5c5 | 2007-02-12 00:53:20 -0800 | [diff] [blame] | 423 | #ifdef AVM_C4_DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | printk(KERN_DEBUG "%s: tx underrun\n", card->name); |
| 425 | #endif |
| 426 | return; |
| 427 | } |
| 428 | |
| 429 | len = CAPIMSG_LEN(skb->data); |
| 430 | |
| 431 | if (len) { |
| 432 | cmd = CAPIMSG_COMMAND(skb->data); |
| 433 | subcmd = CAPIMSG_SUBCOMMAND(skb->data); |
| 434 | |
| 435 | p = dma->sendbuf.dmabuf; |
| 436 | |
| 437 | if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) { |
| 438 | u16 dlen = CAPIMSG_DATALEN(skb->data); |
| 439 | _put_byte(&p, SEND_DATA_B3_REQ); |
| 440 | _put_slice(&p, skb->data, len); |
| 441 | _put_slice(&p, skb->data + len, dlen); |
| 442 | } else { |
| 443 | _put_byte(&p, SEND_MESSAGE); |
| 444 | _put_slice(&p, skb->data, len); |
| 445 | } |
| 446 | txlen = (u8 *)p - (u8 *)dma->sendbuf.dmabuf; |
Robert P. J. Day | 26fb5c5 | 2007-02-12 00:53:20 -0800 | [diff] [blame] | 447 | #ifdef AVM_C4_DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | printk(KERN_DEBUG "%s: tx put msg len=%d\n", card->name, txlen); |
| 449 | #endif |
| 450 | } else { |
| 451 | txlen = skb->len-2; |
Robert P. J. Day | 26fb5c5 | 2007-02-12 00:53:20 -0800 | [diff] [blame] | 452 | #ifdef AVM_C4_POLLDEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | if (skb->data[2] == SEND_POLLACK) |
| 454 | printk(KERN_INFO "%s: ack to c4\n", card->name); |
| 455 | #endif |
Robert P. J. Day | 26fb5c5 | 2007-02-12 00:53:20 -0800 | [diff] [blame] | 456 | #ifdef AVM_C4_DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n", |
| 458 | card->name, skb->data[2], txlen); |
| 459 | #endif |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 460 | skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf, |
| 461 | skb->len - 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | } |
| 463 | txlen = (txlen + 3) & ~3; |
| 464 | |
| 465 | c4outmeml(card->mbase+MBOX_DOWN_ADDR, dma->sendbuf.dmaaddr); |
| 466 | c4outmeml(card->mbase+MBOX_DOWN_LEN, txlen); |
| 467 | |
| 468 | card->csr |= DBELL_DOWN_ARM; |
| 469 | |
| 470 | c4outmeml(card->mbase+DOORBELL, DBELL_DOWN_ARM); |
| 471 | |
| 472 | dev_kfree_skb_any(skb); |
| 473 | } |
| 474 | |
| 475 | /* ------------------------------------------------------------- */ |
| 476 | |
| 477 | static void queue_pollack(avmcard *card) |
| 478 | { |
| 479 | struct sk_buff *skb; |
| 480 | void *p; |
| 481 | |
| 482 | skb = alloc_skb(3, GFP_ATOMIC); |
| 483 | if (!skb) { |
| 484 | printk(KERN_CRIT "%s: no memory, lost poll ack\n", |
| 485 | card->name); |
| 486 | return; |
| 487 | } |
| 488 | p = skb->data; |
| 489 | _put_byte(&p, 0); |
| 490 | _put_byte(&p, 0); |
| 491 | _put_byte(&p, SEND_POLLACK); |
| 492 | skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| 493 | |
| 494 | skb_queue_tail(&card->dma->send_queue, skb); |
| 495 | c4_dispatch_tx(card); |
| 496 | } |
| 497 | |
| 498 | /* ------------------------------------------------------------- */ |
| 499 | |
| 500 | static void c4_handle_rx(avmcard *card) |
| 501 | { |
| 502 | avmcard_dmainfo *dma = card->dma; |
| 503 | struct capi_ctr *ctrl; |
| 504 | avmctrl_info *cinfo; |
| 505 | struct sk_buff *skb; |
| 506 | void *p = dma->recvbuf.dmabuf; |
| 507 | u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize; |
| 508 | u8 b1cmd = _get_byte(&p); |
| 509 | u32 cidx; |
| 510 | |
| 511 | |
Robert P. J. Day | 26fb5c5 | 2007-02-12 00:53:20 -0800 | [diff] [blame] | 512 | #ifdef AVM_C4_DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | printk(KERN_DEBUG "%s: rx 0x%x len=%lu\n", card->name, |
| 514 | b1cmd, (unsigned long)dma->recvlen); |
| 515 | #endif |
| 516 | |
| 517 | switch (b1cmd) { |
| 518 | case RECEIVE_DATA_B3_IND: |
| 519 | |
| 520 | ApplId = (unsigned) _get_word(&p); |
| 521 | MsgLen = _get_slice(&p, card->msgbuf); |
| 522 | DataB3Len = _get_slice(&p, card->databuf); |
| 523 | cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr; |
| 524 | if (cidx >= card->nlogcontr) cidx = 0; |
| 525 | ctrl = &card->ctrlinfo[cidx].capi_ctrl; |
| 526 | |
| 527 | if (MsgLen < 30) { /* not CAPI 64Bit */ |
| 528 | memset(card->msgbuf+MsgLen, 0, 30-MsgLen); |
| 529 | MsgLen = 30; |
| 530 | CAPIMSG_SETLEN(card->msgbuf, 30); |
| 531 | } |
| 532 | if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) { |
| 533 | printk(KERN_ERR "%s: incoming packet dropped\n", |
| 534 | card->name); |
| 535 | } else { |
| 536 | memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen); |
| 537 | memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len); |
| 538 | capi_ctr_handle_message(ctrl, ApplId, skb); |
| 539 | } |
| 540 | break; |
| 541 | |
| 542 | case RECEIVE_MESSAGE: |
| 543 | |
| 544 | ApplId = (unsigned) _get_word(&p); |
| 545 | MsgLen = _get_slice(&p, card->msgbuf); |
| 546 | cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr; |
| 547 | if (cidx >= card->nlogcontr) cidx = 0; |
| 548 | cinfo = &card->ctrlinfo[cidx]; |
| 549 | ctrl = &card->ctrlinfo[cidx].capi_ctrl; |
| 550 | |
| 551 | if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) { |
| 552 | printk(KERN_ERR "%s: incoming packet dropped\n", |
| 553 | card->name); |
| 554 | } else { |
| 555 | memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen); |
| 556 | if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF) |
| 557 | capilib_data_b3_conf(&cinfo->ncci_head, ApplId, |
| 558 | CAPIMSG_NCCI(skb->data), |
| 559 | CAPIMSG_MSGID(skb->data)); |
| 560 | |
| 561 | capi_ctr_handle_message(ctrl, ApplId, skb); |
| 562 | } |
| 563 | break; |
| 564 | |
| 565 | case RECEIVE_NEW_NCCI: |
| 566 | |
| 567 | ApplId = _get_word(&p); |
| 568 | NCCI = _get_word(&p); |
| 569 | WindowSize = _get_word(&p); |
| 570 | cidx = (NCCI&0x7f) - card->cardnr; |
| 571 | if (cidx >= card->nlogcontr) cidx = 0; |
| 572 | |
| 573 | capilib_new_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI, WindowSize); |
| 574 | |
| 575 | break; |
| 576 | |
| 577 | case RECEIVE_FREE_NCCI: |
| 578 | |
| 579 | ApplId = _get_word(&p); |
| 580 | NCCI = _get_word(&p); |
| 581 | |
| 582 | if (NCCI != 0xffffffff) { |
| 583 | cidx = (NCCI&0x7f) - card->cardnr; |
| 584 | if (cidx >= card->nlogcontr) cidx = 0; |
| 585 | capilib_free_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI); |
| 586 | } |
| 587 | break; |
| 588 | |
| 589 | case RECEIVE_START: |
Robert P. J. Day | 26fb5c5 | 2007-02-12 00:53:20 -0800 | [diff] [blame] | 590 | #ifdef AVM_C4_POLLDEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | printk(KERN_INFO "%s: poll from c4\n", card->name); |
| 592 | #endif |
| 593 | if (!suppress_pollack) |
| 594 | queue_pollack(card); |
| 595 | for (cidx=0; cidx < card->nr_controllers; cidx++) { |
| 596 | ctrl = &card->ctrlinfo[cidx].capi_ctrl; |
| 597 | capi_ctr_resume_output(ctrl); |
| 598 | } |
| 599 | break; |
| 600 | |
| 601 | case RECEIVE_STOP: |
| 602 | for (cidx=0; cidx < card->nr_controllers; cidx++) { |
| 603 | ctrl = &card->ctrlinfo[cidx].capi_ctrl; |
| 604 | capi_ctr_suspend_output(ctrl); |
| 605 | } |
| 606 | break; |
| 607 | |
| 608 | case RECEIVE_INIT: |
| 609 | |
| 610 | cidx = card->nlogcontr; |
| 611 | if (cidx >= card->nr_controllers) { |
| 612 | printk(KERN_ERR "%s: card with %d controllers ??\n", |
| 613 | card->name, cidx+1); |
| 614 | break; |
| 615 | } |
| 616 | card->nlogcontr++; |
| 617 | cinfo = &card->ctrlinfo[cidx]; |
| 618 | ctrl = &cinfo->capi_ctrl; |
| 619 | cinfo->versionlen = _get_slice(&p, cinfo->versionbuf); |
| 620 | b1_parse_version(cinfo); |
| 621 | printk(KERN_INFO "%s: %s-card (%s) now active\n", |
| 622 | card->name, |
| 623 | cinfo->version[VER_CARDTYPE], |
| 624 | cinfo->version[VER_DRIVER]); |
| 625 | capi_ctr_ready(&cinfo->capi_ctrl); |
| 626 | break; |
| 627 | |
| 628 | case RECEIVE_TASK_READY: |
| 629 | ApplId = (unsigned) _get_word(&p); |
| 630 | MsgLen = _get_slice(&p, card->msgbuf); |
| 631 | card->msgbuf[MsgLen] = 0; |
| 632 | while ( MsgLen > 0 |
| 633 | && ( card->msgbuf[MsgLen-1] == '\n' |
| 634 | || card->msgbuf[MsgLen-1] == '\r')) { |
| 635 | card->msgbuf[MsgLen-1] = 0; |
| 636 | MsgLen--; |
| 637 | } |
| 638 | printk(KERN_INFO "%s: task %d \"%s\" ready.\n", |
| 639 | card->name, ApplId, card->msgbuf); |
| 640 | break; |
| 641 | |
| 642 | case RECEIVE_DEBUGMSG: |
| 643 | MsgLen = _get_slice(&p, card->msgbuf); |
| 644 | card->msgbuf[MsgLen] = 0; |
| 645 | while ( MsgLen > 0 |
| 646 | && ( card->msgbuf[MsgLen-1] == '\n' |
| 647 | || card->msgbuf[MsgLen-1] == '\r')) { |
| 648 | card->msgbuf[MsgLen-1] = 0; |
| 649 | MsgLen--; |
| 650 | } |
| 651 | printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf); |
| 652 | break; |
| 653 | |
| 654 | default: |
| 655 | printk(KERN_ERR "%s: c4_interrupt: 0x%x ???\n", |
| 656 | card->name, b1cmd); |
| 657 | return; |
| 658 | } |
| 659 | } |
| 660 | |
| 661 | /* ------------------------------------------------------------- */ |
| 662 | |
| 663 | static irqreturn_t c4_handle_interrupt(avmcard *card) |
| 664 | { |
| 665 | unsigned long flags; |
| 666 | u32 status; |
| 667 | |
| 668 | spin_lock_irqsave(&card->lock, flags); |
| 669 | status = c4inmeml(card->mbase+DOORBELL); |
| 670 | |
| 671 | if (status & DBELL_RESET_HOST) { |
| 672 | u_int i; |
| 673 | c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c); |
| 674 | spin_unlock_irqrestore(&card->lock, flags); |
| 675 | if (card->nlogcontr == 0) |
| 676 | return IRQ_HANDLED; |
| 677 | printk(KERN_ERR "%s: unexpected reset\n", card->name); |
| 678 | for (i=0; i < card->nr_controllers; i++) { |
| 679 | avmctrl_info *cinfo = &card->ctrlinfo[i]; |
| 680 | memset(cinfo->version, 0, sizeof(cinfo->version)); |
| 681 | capilib_release(&cinfo->ncci_head); |
| 682 | capi_ctr_reseted(&cinfo->capi_ctrl); |
| 683 | } |
| 684 | card->nlogcontr = 0; |
| 685 | return IRQ_HANDLED; |
| 686 | } |
| 687 | |
| 688 | status &= (DBELL_UP_HOST | DBELL_DOWN_HOST); |
| 689 | if (!status) { |
| 690 | spin_unlock_irqrestore(&card->lock, flags); |
| 691 | return IRQ_HANDLED; |
| 692 | } |
| 693 | c4outmeml(card->mbase+DOORBELL, status); |
| 694 | |
| 695 | if ((status & DBELL_UP_HOST) != 0) { |
| 696 | card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN); |
| 697 | c4outmeml(card->mbase+MBOX_UP_LEN, 0); |
| 698 | c4_handle_rx(card); |
| 699 | card->dma->recvlen = 0; |
| 700 | c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size); |
| 701 | c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM); |
| 702 | } |
| 703 | |
| 704 | if ((status & DBELL_DOWN_HOST) != 0) { |
| 705 | card->csr &= ~DBELL_DOWN_ARM; |
| 706 | c4_dispatch_tx(card); |
| 707 | } else if (card->csr & DBELL_DOWN_HOST) { |
| 708 | if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) { |
| 709 | card->csr &= ~DBELL_DOWN_ARM; |
| 710 | c4_dispatch_tx(card); |
| 711 | } |
| 712 | } |
| 713 | spin_unlock_irqrestore(&card->lock, flags); |
| 714 | return IRQ_HANDLED; |
| 715 | } |
| 716 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 717 | static irqreturn_t c4_interrupt(int interrupt, void *devptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | { |
| 719 | avmcard *card = devptr; |
| 720 | |
| 721 | return c4_handle_interrupt(card); |
| 722 | } |
| 723 | |
| 724 | /* ------------------------------------------------------------- */ |
| 725 | |
| 726 | static void c4_send_init(avmcard *card) |
| 727 | { |
| 728 | struct sk_buff *skb; |
| 729 | void *p; |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 730 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | |
| 732 | skb = alloc_skb(15, GFP_ATOMIC); |
| 733 | if (!skb) { |
| 734 | printk(KERN_CRIT "%s: no memory, lost register appl.\n", |
| 735 | card->name); |
| 736 | return; |
| 737 | } |
| 738 | p = skb->data; |
| 739 | _put_byte(&p, 0); |
| 740 | _put_byte(&p, 0); |
| 741 | _put_byte(&p, SEND_INIT); |
| 742 | _put_word(&p, CAPI_MAXAPPL); |
| 743 | _put_word(&p, AVM_NCCI_PER_CHANNEL*30); |
| 744 | _put_word(&p, card->cardnr - 1); |
| 745 | skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| 746 | |
| 747 | skb_queue_tail(&card->dma->send_queue, skb); |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 748 | spin_lock_irqsave(&card->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | c4_dispatch_tx(card); |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 750 | spin_unlock_irqrestore(&card->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | } |
| 752 | |
| 753 | static int queue_sendconfigword(avmcard *card, u32 val) |
| 754 | { |
| 755 | struct sk_buff *skb; |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 756 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | void *p; |
| 758 | |
| 759 | skb = alloc_skb(3+4, GFP_ATOMIC); |
| 760 | if (!skb) { |
| 761 | printk(KERN_CRIT "%s: no memory, send config\n", |
| 762 | card->name); |
| 763 | return -ENOMEM; |
| 764 | } |
| 765 | p = skb->data; |
| 766 | _put_byte(&p, 0); |
| 767 | _put_byte(&p, 0); |
| 768 | _put_byte(&p, SEND_CONFIG); |
| 769 | _put_word(&p, val); |
| 770 | skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| 771 | |
| 772 | skb_queue_tail(&card->dma->send_queue, skb); |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 773 | spin_lock_irqsave(&card->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | c4_dispatch_tx(card); |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 775 | spin_unlock_irqrestore(&card->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | return 0; |
| 777 | } |
| 778 | |
| 779 | static int queue_sendconfig(avmcard *card, char cval[4]) |
| 780 | { |
| 781 | struct sk_buff *skb; |
| 782 | unsigned long flags; |
| 783 | void *p; |
| 784 | |
| 785 | skb = alloc_skb(3+4, GFP_ATOMIC); |
| 786 | if (!skb) { |
| 787 | printk(KERN_CRIT "%s: no memory, send config\n", |
| 788 | card->name); |
| 789 | return -ENOMEM; |
| 790 | } |
| 791 | p = skb->data; |
| 792 | _put_byte(&p, 0); |
| 793 | _put_byte(&p, 0); |
| 794 | _put_byte(&p, SEND_CONFIG); |
| 795 | _put_byte(&p, cval[0]); |
| 796 | _put_byte(&p, cval[1]); |
| 797 | _put_byte(&p, cval[2]); |
| 798 | _put_byte(&p, cval[3]); |
| 799 | skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| 800 | |
| 801 | skb_queue_tail(&card->dma->send_queue, skb); |
| 802 | |
| 803 | spin_lock_irqsave(&card->lock, flags); |
| 804 | c4_dispatch_tx(card); |
| 805 | spin_unlock_irqrestore(&card->lock, flags); |
| 806 | return 0; |
| 807 | } |
| 808 | |
| 809 | static int c4_send_config(avmcard *card, capiloaddatapart * config) |
| 810 | { |
| 811 | u8 val[4]; |
| 812 | unsigned char *dp; |
| 813 | u_int left; |
| 814 | int retval; |
| 815 | |
| 816 | if ((retval = queue_sendconfigword(card, 1)) != 0) |
| 817 | return retval; |
| 818 | if ((retval = queue_sendconfigword(card, config->len)) != 0) |
| 819 | return retval; |
| 820 | |
| 821 | dp = config->data; |
| 822 | left = config->len; |
| 823 | while (left >= sizeof(u32)) { |
| 824 | if (config->user) { |
| 825 | if (copy_from_user(val, dp, sizeof(val))) |
| 826 | return -EFAULT; |
| 827 | } else { |
| 828 | memcpy(val, dp, sizeof(val)); |
| 829 | } |
| 830 | if ((retval = queue_sendconfig(card, val)) != 0) |
| 831 | return retval; |
| 832 | left -= sizeof(val); |
| 833 | dp += sizeof(val); |
| 834 | } |
| 835 | if (left) { |
| 836 | memset(val, 0, sizeof(val)); |
| 837 | if (config->user) { |
| 838 | if (copy_from_user(&val, dp, left)) |
| 839 | return -EFAULT; |
| 840 | } else { |
| 841 | memcpy(&val, dp, left); |
| 842 | } |
| 843 | if ((retval = queue_sendconfig(card, val)) != 0) |
| 844 | return retval; |
| 845 | } |
| 846 | |
| 847 | return 0; |
| 848 | } |
| 849 | |
| 850 | static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data) |
| 851 | { |
| 852 | avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| 853 | avmcard *card = cinfo->card; |
| 854 | int retval; |
| 855 | |
| 856 | if ((retval = c4_load_t4file(card, &data->firmware))) { |
| 857 | printk(KERN_ERR "%s: failed to load t4file!!\n", |
| 858 | card->name); |
| 859 | c4_reset(card); |
| 860 | return retval; |
| 861 | } |
| 862 | |
| 863 | card->csr = 0; |
| 864 | c4outmeml(card->mbase+MBOX_UP_LEN, 0); |
| 865 | c4outmeml(card->mbase+MBOX_DOWN_LEN, 0); |
| 866 | c4outmeml(card->mbase+DOORBELL, DBELL_INIT); |
| 867 | mdelay(1); |
| 868 | c4outmeml(card->mbase+DOORBELL, |
| 869 | DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST); |
| 870 | |
| 871 | c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x08); |
| 872 | |
| 873 | card->dma->recvlen = 0; |
| 874 | c4outmeml(card->mbase+MBOX_UP_ADDR, card->dma->recvbuf.dmaaddr); |
| 875 | c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size); |
| 876 | c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM); |
| 877 | |
| 878 | if (data->configuration.len > 0 && data->configuration.data) { |
| 879 | retval = c4_send_config(card, &data->configuration); |
| 880 | if (retval) { |
| 881 | printk(KERN_ERR "%s: failed to set config!!\n", |
| 882 | card->name); |
| 883 | c4_reset(card); |
| 884 | return retval; |
| 885 | } |
| 886 | } |
| 887 | |
| 888 | c4_send_init(card); |
| 889 | |
| 890 | return 0; |
| 891 | } |
| 892 | |
| 893 | |
Adrian Bunk | 08e5153 | 2005-06-25 14:58:37 -0700 | [diff] [blame] | 894 | static void c4_reset_ctr(struct capi_ctr *ctrl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | { |
| 896 | avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card; |
| 897 | avmctrl_info *cinfo; |
| 898 | u_int i; |
| 899 | unsigned long flags; |
| 900 | |
| 901 | spin_lock_irqsave(&card->lock, flags); |
| 902 | |
| 903 | c4_reset(card); |
| 904 | |
| 905 | spin_unlock_irqrestore(&card->lock, flags); |
| 906 | |
| 907 | for (i=0; i < card->nr_controllers; i++) { |
| 908 | cinfo = &card->ctrlinfo[i]; |
| 909 | memset(cinfo->version, 0, sizeof(cinfo->version)); |
| 910 | capi_ctr_reseted(&cinfo->capi_ctrl); |
| 911 | } |
| 912 | card->nlogcontr = 0; |
| 913 | } |
| 914 | |
| 915 | static void c4_remove(struct pci_dev *pdev) |
| 916 | { |
| 917 | avmcard *card = pci_get_drvdata(pdev); |
| 918 | avmctrl_info *cinfo; |
| 919 | u_int i; |
| 920 | |
| 921 | if (!card) |
| 922 | return; |
| 923 | |
| 924 | c4_reset(card); |
| 925 | |
| 926 | for (i=0; i < card->nr_controllers; i++) { |
| 927 | cinfo = &card->ctrlinfo[i]; |
| 928 | detach_capi_ctr(&cinfo->capi_ctrl); |
| 929 | } |
| 930 | |
| 931 | free_irq(card->irq, card); |
| 932 | iounmap(card->mbase); |
| 933 | release_region(card->port, AVMB1_PORTLEN); |
| 934 | avmcard_dma_free(card->dma); |
| 935 | pci_set_drvdata(pdev, NULL); |
| 936 | b1_free_card(card); |
| 937 | } |
| 938 | |
| 939 | /* ------------------------------------------------------------- */ |
| 940 | |
| 941 | |
Adrian Bunk | 08e5153 | 2005-06-25 14:58:37 -0700 | [diff] [blame] | 942 | static void c4_register_appl(struct capi_ctr *ctrl, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | u16 appl, |
| 944 | capi_register_params *rp) |
| 945 | { |
| 946 | avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| 947 | avmcard *card = cinfo->card; |
| 948 | struct sk_buff *skb; |
| 949 | int want = rp->level3cnt; |
| 950 | unsigned long flags; |
| 951 | int nconn; |
| 952 | void *p; |
| 953 | |
| 954 | if (ctrl->cnr == card->cardnr) { |
| 955 | |
| 956 | if (want > 0) nconn = want; |
| 957 | else nconn = ctrl->profile.nbchannel * 4 * -want; |
| 958 | if (nconn == 0) nconn = ctrl->profile.nbchannel * 4; |
| 959 | |
| 960 | skb = alloc_skb(23, GFP_ATOMIC); |
| 961 | if (!skb) { |
| 962 | printk(KERN_CRIT "%s: no memory, lost register appl.\n", |
| 963 | card->name); |
| 964 | return; |
| 965 | } |
| 966 | p = skb->data; |
| 967 | _put_byte(&p, 0); |
| 968 | _put_byte(&p, 0); |
| 969 | _put_byte(&p, SEND_REGISTER); |
| 970 | _put_word(&p, appl); |
| 971 | _put_word(&p, 1024 * (nconn+1)); |
| 972 | _put_word(&p, nconn); |
| 973 | _put_word(&p, rp->datablkcnt); |
| 974 | _put_word(&p, rp->datablklen); |
| 975 | skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| 976 | |
| 977 | skb_queue_tail(&card->dma->send_queue, skb); |
| 978 | |
| 979 | spin_lock_irqsave(&card->lock, flags); |
| 980 | c4_dispatch_tx(card); |
| 981 | spin_unlock_irqrestore(&card->lock, flags); |
| 982 | } |
| 983 | } |
| 984 | |
| 985 | /* ------------------------------------------------------------- */ |
| 986 | |
Adrian Bunk | 08e5153 | 2005-06-25 14:58:37 -0700 | [diff] [blame] | 987 | static void c4_release_appl(struct capi_ctr *ctrl, u16 appl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | { |
| 989 | avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| 990 | avmcard *card = cinfo->card; |
| 991 | unsigned long flags; |
| 992 | struct sk_buff *skb; |
| 993 | void *p; |
| 994 | |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 995 | spin_lock_irqsave(&card->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | capilib_release_appl(&cinfo->ncci_head, appl); |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 997 | spin_unlock_irqrestore(&card->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 998 | |
| 999 | if (ctrl->cnr == card->cardnr) { |
| 1000 | skb = alloc_skb(7, GFP_ATOMIC); |
| 1001 | if (!skb) { |
| 1002 | printk(KERN_CRIT "%s: no memory, lost release appl.\n", |
| 1003 | card->name); |
| 1004 | return; |
| 1005 | } |
| 1006 | p = skb->data; |
| 1007 | _put_byte(&p, 0); |
| 1008 | _put_byte(&p, 0); |
| 1009 | _put_byte(&p, SEND_RELEASE); |
| 1010 | _put_word(&p, appl); |
| 1011 | |
| 1012 | skb_put(skb, (u8 *)p - (u8 *)skb->data); |
| 1013 | skb_queue_tail(&card->dma->send_queue, skb); |
| 1014 | spin_lock_irqsave(&card->lock, flags); |
| 1015 | c4_dispatch_tx(card); |
| 1016 | spin_unlock_irqrestore(&card->lock, flags); |
| 1017 | } |
| 1018 | } |
| 1019 | |
| 1020 | /* ------------------------------------------------------------- */ |
| 1021 | |
| 1022 | |
| 1023 | static u16 c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb) |
| 1024 | { |
| 1025 | avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| 1026 | avmcard *card = cinfo->card; |
| 1027 | u16 retval = CAPI_NOERROR; |
| 1028 | unsigned long flags; |
| 1029 | |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 1030 | spin_lock_irqsave(&card->lock, flags); |
| 1031 | if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | retval = capilib_data_b3_req(&cinfo->ncci_head, |
| 1033 | CAPIMSG_APPID(skb->data), |
| 1034 | CAPIMSG_NCCI(skb->data), |
| 1035 | CAPIMSG_MSGID(skb->data)); |
| 1036 | } |
| 1037 | if (retval == CAPI_NOERROR) { |
| 1038 | skb_queue_tail(&card->dma->send_queue, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | c4_dispatch_tx(card); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | } |
Karsten Keil | 1ccfd63 | 2007-10-18 03:04:32 -0700 | [diff] [blame] | 1041 | spin_unlock_irqrestore(&card->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1042 | return retval; |
| 1043 | } |
| 1044 | |
| 1045 | /* ------------------------------------------------------------- */ |
| 1046 | |
| 1047 | static char *c4_procinfo(struct capi_ctr *ctrl) |
| 1048 | { |
| 1049 | avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| 1050 | |
| 1051 | if (!cinfo) |
| 1052 | return ""; |
| 1053 | sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx", |
| 1054 | cinfo->cardname[0] ? cinfo->cardname : "-", |
| 1055 | cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-", |
| 1056 | cinfo->card ? cinfo->card->port : 0x0, |
| 1057 | cinfo->card ? cinfo->card->irq : 0, |
| 1058 | cinfo->card ? cinfo->card->membase : 0 |
| 1059 | ); |
| 1060 | return cinfo->infobuf; |
| 1061 | } |
| 1062 | |
| 1063 | static int c4_read_proc(char *page, char **start, off_t off, |
| 1064 | int count, int *eof, struct capi_ctr *ctrl) |
| 1065 | { |
| 1066 | avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); |
| 1067 | avmcard *card = cinfo->card; |
| 1068 | u8 flag; |
| 1069 | int len = 0; |
| 1070 | char *s; |
| 1071 | |
| 1072 | len += sprintf(page+len, "%-16s %s\n", "name", card->name); |
| 1073 | len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port); |
| 1074 | len += sprintf(page+len, "%-16s %d\n", "irq", card->irq); |
| 1075 | len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase); |
| 1076 | switch (card->cardtype) { |
| 1077 | case avm_b1isa: s = "B1 ISA"; break; |
| 1078 | case avm_b1pci: s = "B1 PCI"; break; |
| 1079 | case avm_b1pcmcia: s = "B1 PCMCIA"; break; |
| 1080 | case avm_m1: s = "M1"; break; |
| 1081 | case avm_m2: s = "M2"; break; |
| 1082 | case avm_t1isa: s = "T1 ISA (HEMA)"; break; |
| 1083 | case avm_t1pci: s = "T1 PCI"; break; |
| 1084 | case avm_c4: s = "C4"; break; |
| 1085 | case avm_c2: s = "C2"; break; |
| 1086 | default: s = "???"; break; |
| 1087 | } |
| 1088 | len += sprintf(page+len, "%-16s %s\n", "type", s); |
| 1089 | if ((s = cinfo->version[VER_DRIVER]) != 0) |
| 1090 | len += sprintf(page+len, "%-16s %s\n", "ver_driver", s); |
| 1091 | if ((s = cinfo->version[VER_CARDTYPE]) != 0) |
| 1092 | len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s); |
| 1093 | if ((s = cinfo->version[VER_SERIAL]) != 0) |
| 1094 | len += sprintf(page+len, "%-16s %s\n", "ver_serial", s); |
| 1095 | |
| 1096 | if (card->cardtype != avm_m1) { |
| 1097 | flag = ((u8 *)(ctrl->profile.manu))[3]; |
| 1098 | if (flag) |
| 1099 | len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n", |
| 1100 | "protocol", |
| 1101 | (flag & 0x01) ? " DSS1" : "", |
| 1102 | (flag & 0x02) ? " CT1" : "", |
| 1103 | (flag & 0x04) ? " VN3" : "", |
| 1104 | (flag & 0x08) ? " NI1" : "", |
| 1105 | (flag & 0x10) ? " AUSTEL" : "", |
| 1106 | (flag & 0x20) ? " ESS" : "", |
| 1107 | (flag & 0x40) ? " 1TR6" : "" |
| 1108 | ); |
| 1109 | } |
| 1110 | if (card->cardtype != avm_m1) { |
| 1111 | flag = ((u8 *)(ctrl->profile.manu))[5]; |
| 1112 | if (flag) |
| 1113 | len += sprintf(page+len, "%-16s%s%s%s%s\n", |
| 1114 | "linetype", |
| 1115 | (flag & 0x01) ? " point to point" : "", |
| 1116 | (flag & 0x02) ? " point to multipoint" : "", |
| 1117 | (flag & 0x08) ? " leased line without D-channel" : "", |
| 1118 | (flag & 0x04) ? " leased line with D-channel" : "" |
| 1119 | ); |
| 1120 | } |
| 1121 | len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname); |
| 1122 | |
| 1123 | if (off+count >= len) |
| 1124 | *eof = 1; |
| 1125 | if (len < off) |
| 1126 | return 0; |
| 1127 | *start = page + off; |
| 1128 | return ((count < len-off) ? count : len-off); |
| 1129 | } |
| 1130 | |
| 1131 | /* ------------------------------------------------------------- */ |
| 1132 | |
| 1133 | static int c4_add_card(struct capicardparams *p, struct pci_dev *dev, |
| 1134 | int nr_controllers) |
| 1135 | { |
| 1136 | avmcard *card; |
| 1137 | avmctrl_info *cinfo; |
| 1138 | int retval; |
| 1139 | int i; |
| 1140 | |
| 1141 | card = b1_alloc_card(nr_controllers); |
| 1142 | if (!card) { |
| 1143 | printk(KERN_WARNING "c4: no memory.\n"); |
| 1144 | retval = -ENOMEM; |
| 1145 | goto err; |
| 1146 | } |
| 1147 | card->dma = avmcard_dma_alloc("c4", dev, 2048+128, 2048+128); |
| 1148 | if (!card->dma) { |
| 1149 | printk(KERN_WARNING "c4: no memory.\n"); |
| 1150 | retval = -ENOMEM; |
| 1151 | goto err_free; |
| 1152 | } |
| 1153 | |
| 1154 | sprintf(card->name, "c%d-%x", nr_controllers, p->port); |
| 1155 | card->port = p->port; |
| 1156 | card->irq = p->irq; |
| 1157 | card->membase = p->membase; |
| 1158 | card->cardtype = (nr_controllers == 4) ? avm_c4 : avm_c2; |
| 1159 | |
| 1160 | if (!request_region(card->port, AVMB1_PORTLEN, card->name)) { |
| 1161 | printk(KERN_WARNING "c4: ports 0x%03x-0x%03x in use.\n", |
| 1162 | card->port, card->port + AVMB1_PORTLEN); |
| 1163 | retval = -EBUSY; |
| 1164 | goto err_free_dma; |
| 1165 | } |
| 1166 | |
| 1167 | card->mbase = ioremap(card->membase, 128); |
| 1168 | if (card->mbase == 0) { |
| 1169 | printk(KERN_NOTICE "c4: can't remap memory at 0x%lx\n", |
| 1170 | card->membase); |
| 1171 | retval = -EIO; |
| 1172 | goto err_release_region; |
| 1173 | } |
| 1174 | |
| 1175 | retval = c4_detect(card); |
| 1176 | if (retval != 0) { |
| 1177 | printk(KERN_NOTICE "c4: NO card at 0x%x error(%d)\n", |
| 1178 | card->port, retval); |
| 1179 | retval = -EIO; |
| 1180 | goto err_unmap; |
| 1181 | } |
| 1182 | c4_reset(card); |
| 1183 | |
Thomas Gleixner | 9ba02be | 2006-07-01 19:29:36 -0700 | [diff] [blame] | 1184 | retval = request_irq(card->irq, c4_interrupt, IRQF_SHARED, card->name, card); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1185 | if (retval) { |
| 1186 | printk(KERN_ERR "c4: unable to get IRQ %d.\n",card->irq); |
| 1187 | retval = -EBUSY; |
| 1188 | goto err_unmap; |
| 1189 | } |
| 1190 | |
| 1191 | for (i=0; i < nr_controllers ; i++) { |
| 1192 | cinfo = &card->ctrlinfo[i]; |
| 1193 | cinfo->capi_ctrl.owner = THIS_MODULE; |
| 1194 | cinfo->capi_ctrl.driver_name = "c4"; |
| 1195 | cinfo->capi_ctrl.driverdata = cinfo; |
| 1196 | cinfo->capi_ctrl.register_appl = c4_register_appl; |
| 1197 | cinfo->capi_ctrl.release_appl = c4_release_appl; |
| 1198 | cinfo->capi_ctrl.send_message = c4_send_message; |
| 1199 | cinfo->capi_ctrl.load_firmware = c4_load_firmware; |
| 1200 | cinfo->capi_ctrl.reset_ctr = c4_reset_ctr; |
| 1201 | cinfo->capi_ctrl.procinfo = c4_procinfo; |
| 1202 | cinfo->capi_ctrl.ctr_read_proc = c4_read_proc; |
| 1203 | strcpy(cinfo->capi_ctrl.name, card->name); |
| 1204 | |
| 1205 | retval = attach_capi_ctr(&cinfo->capi_ctrl); |
| 1206 | if (retval) { |
| 1207 | printk(KERN_ERR "c4: attach controller failed (%d).\n", i); |
| 1208 | for (i--; i >= 0; i--) { |
| 1209 | cinfo = &card->ctrlinfo[i]; |
| 1210 | detach_capi_ctr(&cinfo->capi_ctrl); |
| 1211 | } |
| 1212 | goto err_free_irq; |
| 1213 | } |
| 1214 | if (i == 0) |
| 1215 | card->cardnr = cinfo->capi_ctrl.cnr; |
| 1216 | } |
| 1217 | |
| 1218 | printk(KERN_INFO "c4: AVM C%d at i/o %#x, irq %d, mem %#lx\n", |
| 1219 | nr_controllers, card->port, card->irq, |
| 1220 | card->membase); |
| 1221 | pci_set_drvdata(dev, card); |
| 1222 | return 0; |
| 1223 | |
| 1224 | err_free_irq: |
| 1225 | free_irq(card->irq, card); |
| 1226 | err_unmap: |
| 1227 | iounmap(card->mbase); |
| 1228 | err_release_region: |
| 1229 | release_region(card->port, AVMB1_PORTLEN); |
| 1230 | err_free_dma: |
| 1231 | avmcard_dma_free(card->dma); |
| 1232 | err_free: |
| 1233 | b1_free_card(card); |
| 1234 | err: |
| 1235 | return retval; |
| 1236 | } |
| 1237 | |
| 1238 | /* ------------------------------------------------------------- */ |
| 1239 | |
| 1240 | static int __devinit c4_probe(struct pci_dev *dev, |
| 1241 | const struct pci_device_id *ent) |
| 1242 | { |
| 1243 | int nr = ent->driver_data; |
| 1244 | int retval = 0; |
| 1245 | struct capicardparams param; |
| 1246 | |
| 1247 | if (pci_enable_device(dev) < 0) { |
| 1248 | printk(KERN_ERR "c4: failed to enable AVM-C%d\n", nr); |
| 1249 | return -ENODEV; |
| 1250 | } |
| 1251 | pci_set_master(dev); |
| 1252 | |
| 1253 | param.port = pci_resource_start(dev, 1); |
| 1254 | param.irq = dev->irq; |
| 1255 | param.membase = pci_resource_start(dev, 0); |
| 1256 | |
| 1257 | printk(KERN_INFO "c4: PCI BIOS reports AVM-C%d at i/o %#x, irq %d, mem %#x\n", |
| 1258 | nr, param.port, param.irq, param.membase); |
| 1259 | |
| 1260 | retval = c4_add_card(¶m, dev, nr); |
| 1261 | if (retval != 0) { |
| 1262 | printk(KERN_ERR "c4: no AVM-C%d at i/o %#x, irq %d detected, mem %#x\n", |
| 1263 | nr, param.port, param.irq, param.membase); |
| 1264 | return -ENODEV; |
| 1265 | } |
| 1266 | return 0; |
| 1267 | } |
| 1268 | |
| 1269 | static struct pci_driver c4_pci_driver = { |
| 1270 | .name = "c4", |
| 1271 | .id_table = c4_pci_tbl, |
| 1272 | .probe = c4_probe, |
| 1273 | .remove = c4_remove, |
| 1274 | }; |
| 1275 | |
| 1276 | static struct capi_driver capi_driver_c2 = { |
| 1277 | .name = "c2", |
| 1278 | .revision = "1.0", |
| 1279 | }; |
| 1280 | |
| 1281 | static struct capi_driver capi_driver_c4 = { |
| 1282 | .name = "c4", |
| 1283 | .revision = "1.0", |
| 1284 | }; |
| 1285 | |
| 1286 | static int __init c4_init(void) |
| 1287 | { |
| 1288 | char *p; |
| 1289 | char rev[32]; |
| 1290 | int err; |
| 1291 | |
| 1292 | if ((p = strchr(revision, ':')) != 0 && p[1]) { |
| 1293 | strlcpy(rev, p + 2, 32); |
| 1294 | if ((p = strchr(rev, '$')) != 0 && p > rev) |
| 1295 | *(p-1) = 0; |
| 1296 | } else |
| 1297 | strcpy(rev, "1.0"); |
| 1298 | |
| 1299 | err = pci_register_driver(&c4_pci_driver); |
| 1300 | if (!err) { |
| 1301 | strlcpy(capi_driver_c2.revision, rev, 32); |
| 1302 | register_capi_driver(&capi_driver_c2); |
| 1303 | strlcpy(capi_driver_c4.revision, rev, 32); |
| 1304 | register_capi_driver(&capi_driver_c4); |
| 1305 | printk(KERN_INFO "c4: revision %s\n", rev); |
| 1306 | } |
| 1307 | return err; |
| 1308 | } |
| 1309 | |
| 1310 | static void __exit c4_exit(void) |
| 1311 | { |
| 1312 | unregister_capi_driver(&capi_driver_c2); |
| 1313 | unregister_capi_driver(&capi_driver_c4); |
| 1314 | pci_unregister_driver(&c4_pci_driver); |
| 1315 | } |
| 1316 | |
| 1317 | module_init(c4_init); |
| 1318 | module_exit(c4_exit); |