1 /* 2 * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA 3 * 4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de> 5 * 6 * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org> 7 * 8 * 9 * This driver is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This driver is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 */ 23 24 #include <linux/init.h> 25 #include <linux/interrupt.h> 26 #include <linux/pci.h> 27 #include <linux/slab.h> 28 #include <linux/module.h> 29 #include <linux/bitops.h> 30 #include <linux/io.h> 31 #include <sound/core.h> 32 #include <sound/pcm.h> 33 #include <sound/pcm_params.h> 34 #include <sound/control.h> 35 #include <sound/initval.h> 36 37 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); 38 MODULE_DESCRIPTION("Brooktree Bt87x audio driver"); 39 MODULE_LICENSE("GPL"); 40 MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878}," 41 "{Brooktree,Bt879}}"); 42 43 static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */ 44 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 45 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 46 static int digital_rate[SNDRV_CARDS]; /* digital input rate */ 47 static bool load_all; /* allow to load the non-whitelisted cards */ 48 49 module_param_array(index, int, NULL, 0444); 50 MODULE_PARM_DESC(index, "Index value for Bt87x soundcard"); 51 module_param_array(id, charp, NULL, 0444); 52 MODULE_PARM_DESC(id, "ID string for Bt87x soundcard"); 53 module_param_array(enable, bool, NULL, 0444); 54 MODULE_PARM_DESC(enable, "Enable Bt87x soundcard"); 55 module_param_array(digital_rate, int, NULL, 0444); 56 MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard"); 57 module_param(load_all, bool, 0444); 58 MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards"); 59 60 61 /* register offsets */ 62 #define REG_INT_STAT 0x100 /* interrupt status */ 63 #define REG_INT_MASK 0x104 /* interrupt mask */ 64 #define REG_GPIO_DMA_CTL 0x10c /* audio control */ 65 #define REG_PACKET_LEN 0x110 /* audio packet lengths */ 66 #define REG_RISC_STRT_ADD 0x114 /* RISC program start address */ 67 #define REG_RISC_COUNT 0x120 /* RISC program counter */ 68 69 /* interrupt bits */ 70 #define INT_OFLOW (1 << 3) /* audio A/D overflow */ 71 #define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */ 72 #define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */ 73 #define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */ 74 #define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */ 75 #define INT_PPERR (1 << 15) /* PCI parity error */ 76 #define INT_RIPERR (1 << 16) /* RISC instruction parity error */ 77 #define INT_PABORT (1 << 17) /* PCI master or target abort */ 78 #define INT_OCERR (1 << 18) /* invalid opcode */ 79 #define INT_SCERR (1 << 19) /* sync counter overflow */ 80 #define INT_RISC_EN (1 << 27) /* DMA controller running */ 81 #define INT_RISCS_SHIFT 28 /* RISC status bits */ 82 83 /* audio control bits */ 84 #define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */ 85 #define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */ 86 #define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */ 87 #define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */ 88 #define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */ 89 #define CTL_ACAP_EN (1 << 4) /* enable audio capture */ 90 #define CTL_DA_APP (1 << 5) /* GPIO input */ 91 #define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */ 92 #define CTL_DA_IOM_DA (1 << 6) /* digital audio input */ 93 #define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */ 94 #define CTL_DA_SDR_MASK (0xf<< 8) 95 #define CTL_DA_LMT (1 << 12) /* limit audio data values */ 96 #define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */ 97 #define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */ 98 #define CTL_DA_DPM (1 << 15) /* data packet mode */ 99 #define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */ 100 #define CTL_DA_MLB (1 << 21) /* MSB/LSB format */ 101 #define CTL_DA_LRI (1 << 22) /* left/right indication */ 102 #define CTL_DA_SCE (1 << 23) /* sample clock edge */ 103 #define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */ 104 #define CTL_A_SEL_SFM (1 << 24) /* FM audio input */ 105 #define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */ 106 #define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */ 107 #define CTL_A_SEL_SHIFT 24 108 #define CTL_A_SEL_MASK (3 << 24) 109 #define CTL_A_PWRDN (1 << 26) /* analog audio power-down */ 110 #define CTL_A_G2X (1 << 27) /* audio gain boost */ 111 #define CTL_A_GAIN_SHIFT 28 /* audio input gain */ 112 #define CTL_A_GAIN_MASK (0xf<<28) 113 114 /* RISC instruction opcodes */ 115 #define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */ 116 #define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */ 117 #define RISC_SKIP (0x2 << 28) /* skip FIFO data */ 118 #define RISC_JUMP (0x7 << 28) /* jump to address */ 119 #define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */ 120 121 /* RISC instruction bits */ 122 #define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */ 123 #define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */ 124 #define RISC_SET_STATUS_SHIFT 16 /* set status bits */ 125 #define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */ 126 #define RISC_IRQ ( 1 << 24) /* interrupt */ 127 #define RISC_EOL ( 1 << 26) /* end of line */ 128 #define RISC_SOL ( 1 << 27) /* start of line */ 129 130 /* SYNC status bits values */ 131 #define RISC_SYNC_FM1 0x6 132 #define RISC_SYNC_VRO 0xc 133 134 #define ANALOG_CLOCK 1792000 135 #ifdef CONFIG_SND_BT87X_OVERCLOCK 136 #define CLOCK_DIV_MIN 1 137 #else 138 #define CLOCK_DIV_MIN 4 139 #endif 140 #define CLOCK_DIV_MAX 15 141 142 #define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \ 143 INT_RIPERR | INT_PABORT | INT_OCERR) 144 #define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS) 145 146 /* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */ 147 #define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8) 148 149 /* Cards with configuration information */ 150 enum snd_bt87x_boardid { 151 SND_BT87X_BOARD_UNKNOWN, 152 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */ 153 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */ 154 SND_BT87X_BOARD_OSPREY2x0, 155 SND_BT87X_BOARD_OSPREY440, 156 SND_BT87X_BOARD_AVPHONE98, 157 }; 158 159 /* Card configuration */ 160 struct snd_bt87x_board { 161 int dig_rate; /* Digital input sampling rate */ 162 u32 digital_fmt; /* Register settings for digital input */ 163 unsigned no_analog:1; /* No analog input */ 164 unsigned no_digital:1; /* No digital input */ 165 }; 166 167 static struct snd_bt87x_board snd_bt87x_boards[] = { 168 [SND_BT87X_BOARD_UNKNOWN] = { 169 .dig_rate = 32000, /* just a guess */ 170 }, 171 [SND_BT87X_BOARD_GENERIC] = { 172 .dig_rate = 32000, 173 }, 174 [SND_BT87X_BOARD_ANALOG] = { 175 .no_digital = 1, 176 }, 177 [SND_BT87X_BOARD_OSPREY2x0] = { 178 .dig_rate = 44100, 179 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT), 180 }, 181 [SND_BT87X_BOARD_OSPREY440] = { 182 .dig_rate = 32000, 183 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT), 184 .no_analog = 1, 185 }, 186 [SND_BT87X_BOARD_AVPHONE98] = { 187 .dig_rate = 48000, 188 }, 189 }; 190 191 struct snd_bt87x { 192 struct snd_card *card; 193 struct pci_dev *pci; 194 struct snd_bt87x_board board; 195 196 void __iomem *mmio; 197 int irq; 198 199 spinlock_t reg_lock; 200 unsigned long opened; 201 struct snd_pcm_substream *substream; 202 203 struct snd_dma_buffer dma_risc; 204 unsigned int line_bytes; 205 unsigned int lines; 206 207 u32 reg_control; 208 u32 interrupt_mask; 209 210 int current_line; 211 212 int pci_parity_errors; 213 }; 214 215 enum { DEVICE_DIGITAL, DEVICE_ANALOG }; 216 217 static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg) 218 { 219 return readl(chip->mmio + reg); 220 } 221 222 static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value) 223 { 224 writel(value, chip->mmio + reg); 225 } 226 227 static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream, 228 unsigned int periods, unsigned int period_bytes) 229 { 230 unsigned int i, offset; 231 u32 *risc; 232 233 if (chip->dma_risc.area == NULL) { 234 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 235 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0) 236 return -ENOMEM; 237 } 238 risc = (u32 *)chip->dma_risc.area; 239 offset = 0; 240 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1); 241 *risc++ = cpu_to_le32(0); 242 for (i = 0; i < periods; ++i) { 243 u32 rest; 244 245 rest = period_bytes; 246 do { 247 u32 cmd, len; 248 unsigned int addr; 249 250 len = PAGE_SIZE - (offset % PAGE_SIZE); 251 if (len > rest) 252 len = rest; 253 cmd = RISC_WRITE | len; 254 if (rest == period_bytes) { 255 u32 block = i * 16 / periods; 256 cmd |= RISC_SOL; 257 cmd |= block << RISC_SET_STATUS_SHIFT; 258 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT; 259 } 260 if (len == rest) 261 cmd |= RISC_EOL | RISC_IRQ; 262 *risc++ = cpu_to_le32(cmd); 263 addr = snd_pcm_sgbuf_get_addr(substream, offset); 264 *risc++ = cpu_to_le32(addr); 265 offset += len; 266 rest -= len; 267 } while (rest > 0); 268 } 269 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO); 270 *risc++ = cpu_to_le32(0); 271 *risc++ = cpu_to_le32(RISC_JUMP); 272 *risc++ = cpu_to_le32(chip->dma_risc.addr); 273 chip->line_bytes = period_bytes; 274 chip->lines = periods; 275 return 0; 276 } 277 278 static void snd_bt87x_free_risc(struct snd_bt87x *chip) 279 { 280 if (chip->dma_risc.area) { 281 snd_dma_free_pages(&chip->dma_risc); 282 chip->dma_risc.area = NULL; 283 } 284 } 285 286 static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status) 287 { 288 u16 pci_status; 289 290 pci_read_config_word(chip->pci, PCI_STATUS, &pci_status); 291 pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT | 292 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT | 293 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY; 294 pci_write_config_word(chip->pci, PCI_STATUS, pci_status); 295 if (pci_status != PCI_STATUS_DETECTED_PARITY) 296 dev_err(chip->card->dev, 297 "Aieee - PCI error! status %#08x, PCI status %#04x\n", 298 status & ERROR_INTERRUPTS, pci_status); 299 else { 300 dev_err(chip->card->dev, 301 "Aieee - PCI parity error detected!\n"); 302 /* error 'handling' similar to aic7xxx_pci.c: */ 303 chip->pci_parity_errors++; 304 if (chip->pci_parity_errors > 20) { 305 dev_err(chip->card->dev, 306 "Too many PCI parity errors observed.\n"); 307 dev_err(chip->card->dev, 308 "Some device on this bus is generating bad parity.\n"); 309 dev_err(chip->card->dev, 310 "This is an error *observed by*, not *generated by*, this card.\n"); 311 dev_err(chip->card->dev, 312 "PCI parity error checking has been disabled.\n"); 313 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR); 314 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 315 } 316 } 317 } 318 319 static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id) 320 { 321 struct snd_bt87x *chip = dev_id; 322 unsigned int status, irq_status; 323 324 status = snd_bt87x_readl(chip, REG_INT_STAT); 325 irq_status = status & chip->interrupt_mask; 326 if (!irq_status) 327 return IRQ_NONE; 328 snd_bt87x_writel(chip, REG_INT_STAT, irq_status); 329 330 if (irq_status & ERROR_INTERRUPTS) { 331 if (irq_status & (INT_FBUS | INT_FTRGT)) 332 dev_warn(chip->card->dev, 333 "FIFO overrun, status %#08x\n", status); 334 if (irq_status & INT_OCERR) 335 dev_err(chip->card->dev, 336 "internal RISC error, status %#08x\n", status); 337 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT)) 338 snd_bt87x_pci_error(chip, irq_status); 339 } 340 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) { 341 int current_block, irq_block; 342 343 /* assume that exactly one line has been recorded */ 344 chip->current_line = (chip->current_line + 1) % chip->lines; 345 /* but check if some interrupts have been skipped */ 346 current_block = chip->current_line * 16 / chip->lines; 347 irq_block = status >> INT_RISCS_SHIFT; 348 if (current_block != irq_block) 349 chip->current_line = (irq_block * chip->lines + 15) / 16; 350 351 snd_pcm_period_elapsed(chip->substream); 352 } 353 return IRQ_HANDLED; 354 } 355 356 static struct snd_pcm_hardware snd_bt87x_digital_hw = { 357 .info = SNDRV_PCM_INFO_MMAP | 358 SNDRV_PCM_INFO_INTERLEAVED | 359 SNDRV_PCM_INFO_BLOCK_TRANSFER | 360 SNDRV_PCM_INFO_MMAP_VALID | 361 SNDRV_PCM_INFO_BATCH, 362 .formats = SNDRV_PCM_FMTBIT_S16_LE, 363 .rates = 0, /* set at runtime */ 364 .channels_min = 2, 365 .channels_max = 2, 366 .buffer_bytes_max = 255 * 4092, 367 .period_bytes_min = 32, 368 .period_bytes_max = 4092, 369 .periods_min = 2, 370 .periods_max = 255, 371 }; 372 373 static struct snd_pcm_hardware snd_bt87x_analog_hw = { 374 .info = SNDRV_PCM_INFO_MMAP | 375 SNDRV_PCM_INFO_INTERLEAVED | 376 SNDRV_PCM_INFO_BLOCK_TRANSFER | 377 SNDRV_PCM_INFO_MMAP_VALID | 378 SNDRV_PCM_INFO_BATCH, 379 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, 380 .rates = SNDRV_PCM_RATE_KNOT, 381 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, 382 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, 383 .channels_min = 1, 384 .channels_max = 1, 385 .buffer_bytes_max = 255 * 4092, 386 .period_bytes_min = 32, 387 .period_bytes_max = 4092, 388 .periods_min = 2, 389 .periods_max = 255, 390 }; 391 392 static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 393 { 394 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN; 395 runtime->hw = snd_bt87x_digital_hw; 396 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate); 397 runtime->hw.rate_min = chip->board.dig_rate; 398 runtime->hw.rate_max = chip->board.dig_rate; 399 return 0; 400 } 401 402 static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 403 { 404 static struct snd_ratnum analog_clock = { 405 .num = ANALOG_CLOCK, 406 .den_min = CLOCK_DIV_MIN, 407 .den_max = CLOCK_DIV_MAX, 408 .den_step = 1 409 }; 410 static struct snd_pcm_hw_constraint_ratnums constraint_rates = { 411 .nrats = 1, 412 .rats = &analog_clock 413 }; 414 415 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN); 416 runtime->hw = snd_bt87x_analog_hw; 417 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 418 &constraint_rates); 419 } 420 421 static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) 422 { 423 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 424 struct snd_pcm_runtime *runtime = substream->runtime; 425 int err; 426 427 if (test_and_set_bit(0, &chip->opened)) 428 return -EBUSY; 429 430 if (substream->pcm->device == DEVICE_DIGITAL) 431 err = snd_bt87x_set_digital_hw(chip, runtime); 432 else 433 err = snd_bt87x_set_analog_hw(chip, runtime); 434 if (err < 0) 435 goto _error; 436 437 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 438 if (err < 0) 439 goto _error; 440 441 chip->substream = substream; 442 return 0; 443 444 _error: 445 clear_bit(0, &chip->opened); 446 smp_mb__after_atomic(); 447 return err; 448 } 449 450 static int snd_bt87x_close(struct snd_pcm_substream *substream) 451 { 452 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 453 454 spin_lock_irq(&chip->reg_lock); 455 chip->reg_control |= CTL_A_PWRDN; 456 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 457 spin_unlock_irq(&chip->reg_lock); 458 459 chip->substream = NULL; 460 clear_bit(0, &chip->opened); 461 smp_mb__after_atomic(); 462 return 0; 463 } 464 465 static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, 466 struct snd_pcm_hw_params *hw_params) 467 { 468 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 469 int err; 470 471 err = snd_pcm_lib_malloc_pages(substream, 472 params_buffer_bytes(hw_params)); 473 if (err < 0) 474 return err; 475 return snd_bt87x_create_risc(chip, substream, 476 params_periods(hw_params), 477 params_period_bytes(hw_params)); 478 } 479 480 static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) 481 { 482 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 483 484 snd_bt87x_free_risc(chip); 485 snd_pcm_lib_free_pages(substream); 486 return 0; 487 } 488 489 static int snd_bt87x_prepare(struct snd_pcm_substream *substream) 490 { 491 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 492 struct snd_pcm_runtime *runtime = substream->runtime; 493 int decimation; 494 495 spin_lock_irq(&chip->reg_lock); 496 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); 497 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate; 498 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT; 499 if (runtime->format == SNDRV_PCM_FORMAT_S8) 500 chip->reg_control |= CTL_DA_SBR; 501 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 502 spin_unlock_irq(&chip->reg_lock); 503 return 0; 504 } 505 506 static int snd_bt87x_start(struct snd_bt87x *chip) 507 { 508 spin_lock(&chip->reg_lock); 509 chip->current_line = 0; 510 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN; 511 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr); 512 snd_bt87x_writel(chip, REG_PACKET_LEN, 513 chip->line_bytes | (chip->lines << 16)); 514 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 515 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 516 spin_unlock(&chip->reg_lock); 517 return 0; 518 } 519 520 static int snd_bt87x_stop(struct snd_bt87x *chip) 521 { 522 spin_lock(&chip->reg_lock); 523 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN); 524 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 525 snd_bt87x_writel(chip, REG_INT_MASK, 0); 526 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 527 spin_unlock(&chip->reg_lock); 528 return 0; 529 } 530 531 static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) 532 { 533 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 534 535 switch (cmd) { 536 case SNDRV_PCM_TRIGGER_START: 537 return snd_bt87x_start(chip); 538 case SNDRV_PCM_TRIGGER_STOP: 539 return snd_bt87x_stop(chip); 540 default: 541 return -EINVAL; 542 } 543 } 544 545 static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) 546 { 547 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 548 struct snd_pcm_runtime *runtime = substream->runtime; 549 550 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); 551 } 552 553 static const struct snd_pcm_ops snd_bt87x_pcm_ops = { 554 .open = snd_bt87x_pcm_open, 555 .close = snd_bt87x_close, 556 .ioctl = snd_pcm_lib_ioctl, 557 .hw_params = snd_bt87x_hw_params, 558 .hw_free = snd_bt87x_hw_free, 559 .prepare = snd_bt87x_prepare, 560 .trigger = snd_bt87x_trigger, 561 .pointer = snd_bt87x_pointer, 562 .page = snd_pcm_sgbuf_ops_page, 563 }; 564 565 static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, 566 struct snd_ctl_elem_info *info) 567 { 568 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 569 info->count = 1; 570 info->value.integer.min = 0; 571 info->value.integer.max = 15; 572 return 0; 573 } 574 575 static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, 576 struct snd_ctl_elem_value *value) 577 { 578 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 579 580 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; 581 return 0; 582 } 583 584 static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, 585 struct snd_ctl_elem_value *value) 586 { 587 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 588 u32 old_control; 589 int changed; 590 591 spin_lock_irq(&chip->reg_lock); 592 old_control = chip->reg_control; 593 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) 594 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); 595 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 596 changed = old_control != chip->reg_control; 597 spin_unlock_irq(&chip->reg_lock); 598 return changed; 599 } 600 601 static struct snd_kcontrol_new snd_bt87x_capture_volume = { 602 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 603 .name = "Capture Volume", 604 .info = snd_bt87x_capture_volume_info, 605 .get = snd_bt87x_capture_volume_get, 606 .put = snd_bt87x_capture_volume_put, 607 }; 608 609 #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info 610 611 static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, 612 struct snd_ctl_elem_value *value) 613 { 614 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 615 616 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); 617 return 0; 618 } 619 620 static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, 621 struct snd_ctl_elem_value *value) 622 { 623 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 624 u32 old_control; 625 int changed; 626 627 spin_lock_irq(&chip->reg_lock); 628 old_control = chip->reg_control; 629 chip->reg_control = (chip->reg_control & ~CTL_A_G2X) 630 | (value->value.integer.value[0] ? CTL_A_G2X : 0); 631 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 632 changed = chip->reg_control != old_control; 633 spin_unlock_irq(&chip->reg_lock); 634 return changed; 635 } 636 637 static struct snd_kcontrol_new snd_bt87x_capture_boost = { 638 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 639 .name = "Capture Boost", 640 .info = snd_bt87x_capture_boost_info, 641 .get = snd_bt87x_capture_boost_get, 642 .put = snd_bt87x_capture_boost_put, 643 }; 644 645 static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, 646 struct snd_ctl_elem_info *info) 647 { 648 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"}; 649 650 return snd_ctl_enum_info(info, 1, 3, texts); 651 } 652 653 static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, 654 struct snd_ctl_elem_value *value) 655 { 656 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 657 658 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; 659 return 0; 660 } 661 662 static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, 663 struct snd_ctl_elem_value *value) 664 { 665 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 666 u32 old_control; 667 int changed; 668 669 spin_lock_irq(&chip->reg_lock); 670 old_control = chip->reg_control; 671 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) 672 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); 673 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 674 changed = chip->reg_control != old_control; 675 spin_unlock_irq(&chip->reg_lock); 676 return changed; 677 } 678 679 static struct snd_kcontrol_new snd_bt87x_capture_source = { 680 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 681 .name = "Capture Source", 682 .info = snd_bt87x_capture_source_info, 683 .get = snd_bt87x_capture_source_get, 684 .put = snd_bt87x_capture_source_put, 685 }; 686 687 static int snd_bt87x_free(struct snd_bt87x *chip) 688 { 689 if (chip->mmio) 690 snd_bt87x_stop(chip); 691 if (chip->irq >= 0) 692 free_irq(chip->irq, chip); 693 iounmap(chip->mmio); 694 pci_release_regions(chip->pci); 695 pci_disable_device(chip->pci); 696 kfree(chip); 697 return 0; 698 } 699 700 static int snd_bt87x_dev_free(struct snd_device *device) 701 { 702 struct snd_bt87x *chip = device->device_data; 703 return snd_bt87x_free(chip); 704 } 705 706 static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) 707 { 708 int err; 709 struct snd_pcm *pcm; 710 711 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); 712 if (err < 0) 713 return err; 714 pcm->private_data = chip; 715 strcpy(pcm->name, name); 716 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops); 717 return snd_pcm_lib_preallocate_pages_for_all(pcm, 718 SNDRV_DMA_TYPE_DEV_SG, 719 snd_dma_pci_data(chip->pci), 720 128 * 1024, 721 ALIGN(255 * 4092, 1024)); 722 } 723 724 static int snd_bt87x_create(struct snd_card *card, 725 struct pci_dev *pci, 726 struct snd_bt87x **rchip) 727 { 728 struct snd_bt87x *chip; 729 int err; 730 static struct snd_device_ops ops = { 731 .dev_free = snd_bt87x_dev_free 732 }; 733 734 *rchip = NULL; 735 736 err = pci_enable_device(pci); 737 if (err < 0) 738 return err; 739 740 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 741 if (!chip) { 742 pci_disable_device(pci); 743 return -ENOMEM; 744 } 745 chip->card = card; 746 chip->pci = pci; 747 chip->irq = -1; 748 spin_lock_init(&chip->reg_lock); 749 750 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) { 751 kfree(chip); 752 pci_disable_device(pci); 753 return err; 754 } 755 chip->mmio = pci_ioremap_bar(pci, 0); 756 if (!chip->mmio) { 757 dev_err(card->dev, "cannot remap io memory\n"); 758 err = -ENOMEM; 759 goto fail; 760 } 761 762 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | 763 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); 764 chip->interrupt_mask = MY_INTERRUPTS; 765 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 766 snd_bt87x_writel(chip, REG_INT_MASK, 0); 767 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 768 769 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, 770 KBUILD_MODNAME, chip); 771 if (err < 0) { 772 dev_err(card->dev, "cannot grab irq %d\n", pci->irq); 773 goto fail; 774 } 775 chip->irq = pci->irq; 776 pci_set_master(pci); 777 synchronize_irq(chip->irq); 778 779 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 780 if (err < 0) 781 goto fail; 782 783 *rchip = chip; 784 return 0; 785 786 fail: 787 snd_bt87x_free(chip); 788 return err; 789 } 790 791 #define BT_DEVICE(chip, subvend, subdev, id) \ 792 { .vendor = PCI_VENDOR_ID_BROOKTREE, \ 793 .device = chip, \ 794 .subvendor = subvend, .subdevice = subdev, \ 795 .driver_data = SND_BT87X_BOARD_ ## id } 796 /* driver_data is the card id for that device */ 797 798 static const struct pci_device_id snd_bt87x_ids[] = { 799 /* Hauppauge WinTV series */ 800 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), 801 /* Hauppauge WinTV series */ 802 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), 803 /* Viewcast Osprey 200 */ 804 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), 805 /* Viewcast Osprey 440 (rate is configurable via gpio) */ 806 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), 807 /* ATI TV-Wonder */ 808 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), 809 /* Leadtek Winfast tv 2000xp delux */ 810 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), 811 /* Pinnacle PCTV */ 812 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC), 813 /* Voodoo TV 200 */ 814 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), 815 /* Askey Computer Corp. MagicTView'99 */ 816 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC), 817 /* AVerMedia Studio No. 103, 203, ...? */ 818 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), 819 /* Prolink PixelView PV-M4900 */ 820 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), 821 /* Pinnacle Studio PCTV rave */ 822 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), 823 { } 824 }; 825 MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); 826 827 /* cards known not to have audio 828 * (DVB cards use the audio function to transfer MPEG data) */ 829 static struct { 830 unsigned short subvendor, subdevice; 831 } blacklist[] = { 832 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ 833 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ 834 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ 835 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ 836 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ 837 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ 838 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ 839 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ 840 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ 841 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ 842 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ 843 }; 844 845 static struct pci_driver driver; 846 847 /* return the id of the card, or a negative value if it's blacklisted */ 848 static int snd_bt87x_detect_card(struct pci_dev *pci) 849 { 850 int i; 851 const struct pci_device_id *supported; 852 853 supported = pci_match_id(snd_bt87x_ids, pci); 854 if (supported && supported->driver_data > 0) 855 return supported->driver_data; 856 857 for (i = 0; i < ARRAY_SIZE(blacklist); ++i) 858 if (blacklist[i].subvendor == pci->subsystem_vendor && 859 blacklist[i].subdevice == pci->subsystem_device) { 860 dev_dbg(&pci->dev, 861 "card %#04x-%#04x:%#04x has no audio\n", 862 pci->device, pci->subsystem_vendor, pci->subsystem_device); 863 return -EBUSY; 864 } 865 866 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n", 867 pci->device, pci->subsystem_vendor, pci->subsystem_device); 868 dev_info(&pci->dev, "please mail id, board name, and, " 869 "if it works, the correct digital_rate option to " 870 "<alsa-devel@alsa-project.org>\n"); 871 return SND_BT87X_BOARD_UNKNOWN; 872 } 873 874 static int snd_bt87x_probe(struct pci_dev *pci, 875 const struct pci_device_id *pci_id) 876 { 877 static int dev; 878 struct snd_card *card; 879 struct snd_bt87x *chip; 880 int err; 881 enum snd_bt87x_boardid boardid; 882 883 if (!pci_id->driver_data) { 884 err = snd_bt87x_detect_card(pci); 885 if (err < 0) 886 return -ENODEV; 887 boardid = err; 888 } else 889 boardid = pci_id->driver_data; 890 891 if (dev >= SNDRV_CARDS) 892 return -ENODEV; 893 if (!enable[dev]) { 894 ++dev; 895 return -ENOENT; 896 } 897 898 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 899 0, &card); 900 if (err < 0) 901 return err; 902 903 err = snd_bt87x_create(card, pci, &chip); 904 if (err < 0) 905 goto _error; 906 907 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); 908 909 if (!chip->board.no_digital) { 910 if (digital_rate[dev] > 0) 911 chip->board.dig_rate = digital_rate[dev]; 912 913 chip->reg_control |= chip->board.digital_fmt; 914 915 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); 916 if (err < 0) 917 goto _error; 918 } 919 if (!chip->board.no_analog) { 920 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); 921 if (err < 0) 922 goto _error; 923 err = snd_ctl_add(card, snd_ctl_new1( 924 &snd_bt87x_capture_volume, chip)); 925 if (err < 0) 926 goto _error; 927 err = snd_ctl_add(card, snd_ctl_new1( 928 &snd_bt87x_capture_boost, chip)); 929 if (err < 0) 930 goto _error; 931 err = snd_ctl_add(card, snd_ctl_new1( 932 &snd_bt87x_capture_source, chip)); 933 if (err < 0) 934 goto _error; 935 } 936 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital " 937 "(rate %d Hz)\n", dev, boardid, 938 chip->board.no_analog ? "no " : "", 939 chip->board.no_digital ? "no " : "", chip->board.dig_rate); 940 941 strcpy(card->driver, "Bt87x"); 942 sprintf(card->shortname, "Brooktree Bt%x", pci->device); 943 sprintf(card->longname, "%s at %#llx, irq %i", 944 card->shortname, (unsigned long long)pci_resource_start(pci, 0), 945 chip->irq); 946 strcpy(card->mixername, "Bt87x"); 947 948 err = snd_card_register(card); 949 if (err < 0) 950 goto _error; 951 952 pci_set_drvdata(pci, card); 953 ++dev; 954 return 0; 955 956 _error: 957 snd_card_free(card); 958 return err; 959 } 960 961 static void snd_bt87x_remove(struct pci_dev *pci) 962 { 963 snd_card_free(pci_get_drvdata(pci)); 964 } 965 966 /* default entries for all Bt87x cards - it's not exported */ 967 /* driver_data is set to 0 to call detection */ 968 static const struct pci_device_id snd_bt87x_default_ids[] = { 969 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 970 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 971 { } 972 }; 973 974 static struct pci_driver driver = { 975 .name = KBUILD_MODNAME, 976 .id_table = snd_bt87x_ids, 977 .probe = snd_bt87x_probe, 978 .remove = snd_bt87x_remove, 979 }; 980 981 static int __init alsa_card_bt87x_init(void) 982 { 983 if (load_all) 984 driver.id_table = snd_bt87x_default_ids; 985 return pci_register_driver(&driver); 986 } 987 988 static void __exit alsa_card_bt87x_exit(void) 989 { 990 pci_unregister_driver(&driver); 991 } 992 993 module_init(alsa_card_bt87x_init) 994 module_exit(alsa_card_bt87x_exit) 995