1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA 4 * 5 * Copyright (c) Clemens Ladisch <clemens@ladisch.de> 6 * 7 * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org> 8 */ 9 10 #include <linux/init.h> 11 #include <linux/interrupt.h> 12 #include <linux/pci.h> 13 #include <linux/slab.h> 14 #include <linux/module.h> 15 #include <linux/bitops.h> 16 #include <linux/io.h> 17 #include <sound/core.h> 18 #include <sound/pcm.h> 19 #include <sound/pcm_params.h> 20 #include <sound/control.h> 21 #include <sound/initval.h> 22 23 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); 24 MODULE_DESCRIPTION("Brooktree Bt87x audio driver"); 25 MODULE_LICENSE("GPL"); 26 MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878}," 27 "{Brooktree,Bt879}}"); 28 29 static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */ 30 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 31 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 32 static int digital_rate[SNDRV_CARDS]; /* digital input rate */ 33 static bool load_all; /* allow to load cards not the allowlist */ 34 35 module_param_array(index, int, NULL, 0444); 36 MODULE_PARM_DESC(index, "Index value for Bt87x soundcard"); 37 module_param_array(id, charp, NULL, 0444); 38 MODULE_PARM_DESC(id, "ID string for Bt87x soundcard"); 39 module_param_array(enable, bool, NULL, 0444); 40 MODULE_PARM_DESC(enable, "Enable Bt87x soundcard"); 41 module_param_array(digital_rate, int, NULL, 0444); 42 MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard"); 43 module_param(load_all, bool, 0444); 44 MODULE_PARM_DESC(load_all, "Allow to load cards not on the allowlist"); 45 46 47 /* register offsets */ 48 #define REG_INT_STAT 0x100 /* interrupt status */ 49 #define REG_INT_MASK 0x104 /* interrupt mask */ 50 #define REG_GPIO_DMA_CTL 0x10c /* audio control */ 51 #define REG_PACKET_LEN 0x110 /* audio packet lengths */ 52 #define REG_RISC_STRT_ADD 0x114 /* RISC program start address */ 53 #define REG_RISC_COUNT 0x120 /* RISC program counter */ 54 55 /* interrupt bits */ 56 #define INT_OFLOW (1 << 3) /* audio A/D overflow */ 57 #define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */ 58 #define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */ 59 #define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */ 60 #define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */ 61 #define INT_PPERR (1 << 15) /* PCI parity error */ 62 #define INT_RIPERR (1 << 16) /* RISC instruction parity error */ 63 #define INT_PABORT (1 << 17) /* PCI master or target abort */ 64 #define INT_OCERR (1 << 18) /* invalid opcode */ 65 #define INT_SCERR (1 << 19) /* sync counter overflow */ 66 #define INT_RISC_EN (1 << 27) /* DMA controller running */ 67 #define INT_RISCS_SHIFT 28 /* RISC status bits */ 68 69 /* audio control bits */ 70 #define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */ 71 #define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */ 72 #define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */ 73 #define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */ 74 #define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */ 75 #define CTL_ACAP_EN (1 << 4) /* enable audio capture */ 76 #define CTL_DA_APP (1 << 5) /* GPIO input */ 77 #define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */ 78 #define CTL_DA_IOM_DA (1 << 6) /* digital audio input */ 79 #define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */ 80 #define CTL_DA_SDR_MASK (0xf<< 8) 81 #define CTL_DA_LMT (1 << 12) /* limit audio data values */ 82 #define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */ 83 #define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */ 84 #define CTL_DA_DPM (1 << 15) /* data packet mode */ 85 #define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */ 86 #define CTL_DA_MLB (1 << 21) /* MSB/LSB format */ 87 #define CTL_DA_LRI (1 << 22) /* left/right indication */ 88 #define CTL_DA_SCE (1 << 23) /* sample clock edge */ 89 #define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */ 90 #define CTL_A_SEL_SFM (1 << 24) /* FM audio input */ 91 #define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */ 92 #define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */ 93 #define CTL_A_SEL_SHIFT 24 94 #define CTL_A_SEL_MASK (3 << 24) 95 #define CTL_A_PWRDN (1 << 26) /* analog audio power-down */ 96 #define CTL_A_G2X (1 << 27) /* audio gain boost */ 97 #define CTL_A_GAIN_SHIFT 28 /* audio input gain */ 98 #define CTL_A_GAIN_MASK (0xf<<28) 99 100 /* RISC instruction opcodes */ 101 #define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */ 102 #define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */ 103 #define RISC_SKIP (0x2 << 28) /* skip FIFO data */ 104 #define RISC_JUMP (0x7 << 28) /* jump to address */ 105 #define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */ 106 107 /* RISC instruction bits */ 108 #define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */ 109 #define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */ 110 #define RISC_SET_STATUS_SHIFT 16 /* set status bits */ 111 #define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */ 112 #define RISC_IRQ ( 1 << 24) /* interrupt */ 113 #define RISC_EOL ( 1 << 26) /* end of line */ 114 #define RISC_SOL ( 1 << 27) /* start of line */ 115 116 /* SYNC status bits values */ 117 #define RISC_SYNC_FM1 0x6 118 #define RISC_SYNC_VRO 0xc 119 120 #define ANALOG_CLOCK 1792000 121 #ifdef CONFIG_SND_BT87X_OVERCLOCK 122 #define CLOCK_DIV_MIN 1 123 #else 124 #define CLOCK_DIV_MIN 4 125 #endif 126 #define CLOCK_DIV_MAX 15 127 128 #define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \ 129 INT_RIPERR | INT_PABORT | INT_OCERR) 130 #define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS) 131 132 /* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */ 133 #define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8) 134 135 /* Cards with configuration information */ 136 enum snd_bt87x_boardid { 137 SND_BT87X_BOARD_UNKNOWN, 138 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */ 139 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */ 140 SND_BT87X_BOARD_OSPREY2x0, 141 SND_BT87X_BOARD_OSPREY440, 142 SND_BT87X_BOARD_AVPHONE98, 143 }; 144 145 /* Card configuration */ 146 struct snd_bt87x_board { 147 int dig_rate; /* Digital input sampling rate */ 148 u32 digital_fmt; /* Register settings for digital input */ 149 unsigned no_analog:1; /* No analog input */ 150 unsigned no_digital:1; /* No digital input */ 151 }; 152 153 static const struct snd_bt87x_board snd_bt87x_boards[] = { 154 [SND_BT87X_BOARD_UNKNOWN] = { 155 .dig_rate = 32000, /* just a guess */ 156 }, 157 [SND_BT87X_BOARD_GENERIC] = { 158 .dig_rate = 32000, 159 }, 160 [SND_BT87X_BOARD_ANALOG] = { 161 .no_digital = 1, 162 }, 163 [SND_BT87X_BOARD_OSPREY2x0] = { 164 .dig_rate = 44100, 165 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT), 166 }, 167 [SND_BT87X_BOARD_OSPREY440] = { 168 .dig_rate = 32000, 169 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT), 170 .no_analog = 1, 171 }, 172 [SND_BT87X_BOARD_AVPHONE98] = { 173 .dig_rate = 48000, 174 }, 175 }; 176 177 struct snd_bt87x { 178 struct snd_card *card; 179 struct pci_dev *pci; 180 struct snd_bt87x_board board; 181 182 void __iomem *mmio; 183 int irq; 184 185 spinlock_t reg_lock; 186 unsigned long opened; 187 struct snd_pcm_substream *substream; 188 189 struct snd_dma_buffer dma_risc; 190 unsigned int line_bytes; 191 unsigned int lines; 192 193 u32 reg_control; 194 u32 interrupt_mask; 195 196 int current_line; 197 198 int pci_parity_errors; 199 }; 200 201 enum { DEVICE_DIGITAL, DEVICE_ANALOG }; 202 203 static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg) 204 { 205 return readl(chip->mmio + reg); 206 } 207 208 static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value) 209 { 210 writel(value, chip->mmio + reg); 211 } 212 213 static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream, 214 unsigned int periods, unsigned int period_bytes) 215 { 216 unsigned int i, offset; 217 __le32 *risc; 218 219 if (chip->dma_risc.area == NULL) { 220 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev, 221 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0) 222 return -ENOMEM; 223 } 224 risc = (__le32 *)chip->dma_risc.area; 225 offset = 0; 226 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1); 227 *risc++ = cpu_to_le32(0); 228 for (i = 0; i < periods; ++i) { 229 u32 rest; 230 231 rest = period_bytes; 232 do { 233 u32 cmd, len; 234 unsigned int addr; 235 236 len = PAGE_SIZE - (offset % PAGE_SIZE); 237 if (len > rest) 238 len = rest; 239 cmd = RISC_WRITE | len; 240 if (rest == period_bytes) { 241 u32 block = i * 16 / periods; 242 cmd |= RISC_SOL; 243 cmd |= block << RISC_SET_STATUS_SHIFT; 244 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT; 245 } 246 if (len == rest) 247 cmd |= RISC_EOL | RISC_IRQ; 248 *risc++ = cpu_to_le32(cmd); 249 addr = snd_pcm_sgbuf_get_addr(substream, offset); 250 *risc++ = cpu_to_le32(addr); 251 offset += len; 252 rest -= len; 253 } while (rest > 0); 254 } 255 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO); 256 *risc++ = cpu_to_le32(0); 257 *risc++ = cpu_to_le32(RISC_JUMP); 258 *risc++ = cpu_to_le32(chip->dma_risc.addr); 259 chip->line_bytes = period_bytes; 260 chip->lines = periods; 261 return 0; 262 } 263 264 static void snd_bt87x_free_risc(struct snd_bt87x *chip) 265 { 266 if (chip->dma_risc.area) { 267 snd_dma_free_pages(&chip->dma_risc); 268 chip->dma_risc.area = NULL; 269 } 270 } 271 272 static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status) 273 { 274 int pci_status = pci_status_get_and_clear_errors(chip->pci); 275 276 if (pci_status != PCI_STATUS_DETECTED_PARITY) 277 dev_err(chip->card->dev, 278 "Aieee - PCI error! status %#08x, PCI status %#04x\n", 279 status & ERROR_INTERRUPTS, pci_status); 280 else { 281 dev_err(chip->card->dev, 282 "Aieee - PCI parity error detected!\n"); 283 /* error 'handling' similar to aic7xxx_pci.c: */ 284 chip->pci_parity_errors++; 285 if (chip->pci_parity_errors > 20) { 286 dev_err(chip->card->dev, 287 "Too many PCI parity errors observed.\n"); 288 dev_err(chip->card->dev, 289 "Some device on this bus is generating bad parity.\n"); 290 dev_err(chip->card->dev, 291 "This is an error *observed by*, not *generated by*, this card.\n"); 292 dev_err(chip->card->dev, 293 "PCI parity error checking has been disabled.\n"); 294 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR); 295 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 296 } 297 } 298 } 299 300 static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id) 301 { 302 struct snd_bt87x *chip = dev_id; 303 unsigned int status, irq_status; 304 305 status = snd_bt87x_readl(chip, REG_INT_STAT); 306 irq_status = status & chip->interrupt_mask; 307 if (!irq_status) 308 return IRQ_NONE; 309 snd_bt87x_writel(chip, REG_INT_STAT, irq_status); 310 311 if (irq_status & ERROR_INTERRUPTS) { 312 if (irq_status & (INT_FBUS | INT_FTRGT)) 313 dev_warn(chip->card->dev, 314 "FIFO overrun, status %#08x\n", status); 315 if (irq_status & INT_OCERR) 316 dev_err(chip->card->dev, 317 "internal RISC error, status %#08x\n", status); 318 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT)) 319 snd_bt87x_pci_error(chip, irq_status); 320 } 321 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) { 322 int current_block, irq_block; 323 324 /* assume that exactly one line has been recorded */ 325 chip->current_line = (chip->current_line + 1) % chip->lines; 326 /* but check if some interrupts have been skipped */ 327 current_block = chip->current_line * 16 / chip->lines; 328 irq_block = status >> INT_RISCS_SHIFT; 329 if (current_block != irq_block) 330 chip->current_line = DIV_ROUND_UP(irq_block * chip->lines, 331 16); 332 333 snd_pcm_period_elapsed(chip->substream); 334 } 335 return IRQ_HANDLED; 336 } 337 338 static const struct snd_pcm_hardware snd_bt87x_digital_hw = { 339 .info = SNDRV_PCM_INFO_MMAP | 340 SNDRV_PCM_INFO_INTERLEAVED | 341 SNDRV_PCM_INFO_BLOCK_TRANSFER | 342 SNDRV_PCM_INFO_MMAP_VALID | 343 SNDRV_PCM_INFO_BATCH, 344 .formats = SNDRV_PCM_FMTBIT_S16_LE, 345 .rates = 0, /* set at runtime */ 346 .channels_min = 2, 347 .channels_max = 2, 348 .buffer_bytes_max = 255 * 4092, 349 .period_bytes_min = 32, 350 .period_bytes_max = 4092, 351 .periods_min = 2, 352 .periods_max = 255, 353 }; 354 355 static const struct snd_pcm_hardware snd_bt87x_analog_hw = { 356 .info = SNDRV_PCM_INFO_MMAP | 357 SNDRV_PCM_INFO_INTERLEAVED | 358 SNDRV_PCM_INFO_BLOCK_TRANSFER | 359 SNDRV_PCM_INFO_MMAP_VALID | 360 SNDRV_PCM_INFO_BATCH, 361 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, 362 .rates = SNDRV_PCM_RATE_KNOT, 363 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, 364 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, 365 .channels_min = 1, 366 .channels_max = 1, 367 .buffer_bytes_max = 255 * 4092, 368 .period_bytes_min = 32, 369 .period_bytes_max = 4092, 370 .periods_min = 2, 371 .periods_max = 255, 372 }; 373 374 static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 375 { 376 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN; 377 runtime->hw = snd_bt87x_digital_hw; 378 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate); 379 runtime->hw.rate_min = chip->board.dig_rate; 380 runtime->hw.rate_max = chip->board.dig_rate; 381 return 0; 382 } 383 384 static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 385 { 386 static const struct snd_ratnum analog_clock = { 387 .num = ANALOG_CLOCK, 388 .den_min = CLOCK_DIV_MIN, 389 .den_max = CLOCK_DIV_MAX, 390 .den_step = 1 391 }; 392 static const struct snd_pcm_hw_constraint_ratnums constraint_rates = { 393 .nrats = 1, 394 .rats = &analog_clock 395 }; 396 397 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN); 398 runtime->hw = snd_bt87x_analog_hw; 399 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 400 &constraint_rates); 401 } 402 403 static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) 404 { 405 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 406 struct snd_pcm_runtime *runtime = substream->runtime; 407 int err; 408 409 if (test_and_set_bit(0, &chip->opened)) 410 return -EBUSY; 411 412 if (substream->pcm->device == DEVICE_DIGITAL) 413 err = snd_bt87x_set_digital_hw(chip, runtime); 414 else 415 err = snd_bt87x_set_analog_hw(chip, runtime); 416 if (err < 0) 417 goto _error; 418 419 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 420 if (err < 0) 421 goto _error; 422 423 chip->substream = substream; 424 return 0; 425 426 _error: 427 clear_bit(0, &chip->opened); 428 smp_mb__after_atomic(); 429 return err; 430 } 431 432 static int snd_bt87x_close(struct snd_pcm_substream *substream) 433 { 434 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 435 436 spin_lock_irq(&chip->reg_lock); 437 chip->reg_control |= CTL_A_PWRDN; 438 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 439 spin_unlock_irq(&chip->reg_lock); 440 441 chip->substream = NULL; 442 clear_bit(0, &chip->opened); 443 smp_mb__after_atomic(); 444 return 0; 445 } 446 447 static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, 448 struct snd_pcm_hw_params *hw_params) 449 { 450 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 451 452 return snd_bt87x_create_risc(chip, substream, 453 params_periods(hw_params), 454 params_period_bytes(hw_params)); 455 } 456 457 static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) 458 { 459 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 460 461 snd_bt87x_free_risc(chip); 462 return 0; 463 } 464 465 static int snd_bt87x_prepare(struct snd_pcm_substream *substream) 466 { 467 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 468 struct snd_pcm_runtime *runtime = substream->runtime; 469 int decimation; 470 471 spin_lock_irq(&chip->reg_lock); 472 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); 473 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate; 474 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT; 475 if (runtime->format == SNDRV_PCM_FORMAT_S8) 476 chip->reg_control |= CTL_DA_SBR; 477 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 478 spin_unlock_irq(&chip->reg_lock); 479 return 0; 480 } 481 482 static int snd_bt87x_start(struct snd_bt87x *chip) 483 { 484 spin_lock(&chip->reg_lock); 485 chip->current_line = 0; 486 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN; 487 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr); 488 snd_bt87x_writel(chip, REG_PACKET_LEN, 489 chip->line_bytes | (chip->lines << 16)); 490 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 491 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 492 spin_unlock(&chip->reg_lock); 493 return 0; 494 } 495 496 static int snd_bt87x_stop(struct snd_bt87x *chip) 497 { 498 spin_lock(&chip->reg_lock); 499 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN); 500 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 501 snd_bt87x_writel(chip, REG_INT_MASK, 0); 502 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 503 spin_unlock(&chip->reg_lock); 504 return 0; 505 } 506 507 static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) 508 { 509 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 510 511 switch (cmd) { 512 case SNDRV_PCM_TRIGGER_START: 513 return snd_bt87x_start(chip); 514 case SNDRV_PCM_TRIGGER_STOP: 515 return snd_bt87x_stop(chip); 516 default: 517 return -EINVAL; 518 } 519 } 520 521 static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) 522 { 523 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 524 struct snd_pcm_runtime *runtime = substream->runtime; 525 526 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); 527 } 528 529 static const struct snd_pcm_ops snd_bt87x_pcm_ops = { 530 .open = snd_bt87x_pcm_open, 531 .close = snd_bt87x_close, 532 .hw_params = snd_bt87x_hw_params, 533 .hw_free = snd_bt87x_hw_free, 534 .prepare = snd_bt87x_prepare, 535 .trigger = snd_bt87x_trigger, 536 .pointer = snd_bt87x_pointer, 537 }; 538 539 static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, 540 struct snd_ctl_elem_info *info) 541 { 542 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 543 info->count = 1; 544 info->value.integer.min = 0; 545 info->value.integer.max = 15; 546 return 0; 547 } 548 549 static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, 550 struct snd_ctl_elem_value *value) 551 { 552 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 553 554 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; 555 return 0; 556 } 557 558 static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, 559 struct snd_ctl_elem_value *value) 560 { 561 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 562 u32 old_control; 563 int changed; 564 565 spin_lock_irq(&chip->reg_lock); 566 old_control = chip->reg_control; 567 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) 568 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); 569 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 570 changed = old_control != chip->reg_control; 571 spin_unlock_irq(&chip->reg_lock); 572 return changed; 573 } 574 575 static const struct snd_kcontrol_new snd_bt87x_capture_volume = { 576 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 577 .name = "Capture Volume", 578 .info = snd_bt87x_capture_volume_info, 579 .get = snd_bt87x_capture_volume_get, 580 .put = snd_bt87x_capture_volume_put, 581 }; 582 583 #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info 584 585 static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, 586 struct snd_ctl_elem_value *value) 587 { 588 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 589 590 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); 591 return 0; 592 } 593 594 static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, 595 struct snd_ctl_elem_value *value) 596 { 597 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 598 u32 old_control; 599 int changed; 600 601 spin_lock_irq(&chip->reg_lock); 602 old_control = chip->reg_control; 603 chip->reg_control = (chip->reg_control & ~CTL_A_G2X) 604 | (value->value.integer.value[0] ? CTL_A_G2X : 0); 605 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 606 changed = chip->reg_control != old_control; 607 spin_unlock_irq(&chip->reg_lock); 608 return changed; 609 } 610 611 static const struct snd_kcontrol_new snd_bt87x_capture_boost = { 612 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 613 .name = "Capture Boost", 614 .info = snd_bt87x_capture_boost_info, 615 .get = snd_bt87x_capture_boost_get, 616 .put = snd_bt87x_capture_boost_put, 617 }; 618 619 static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, 620 struct snd_ctl_elem_info *info) 621 { 622 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"}; 623 624 return snd_ctl_enum_info(info, 1, 3, texts); 625 } 626 627 static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, 628 struct snd_ctl_elem_value *value) 629 { 630 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 631 632 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; 633 return 0; 634 } 635 636 static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, 637 struct snd_ctl_elem_value *value) 638 { 639 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 640 u32 old_control; 641 int changed; 642 643 spin_lock_irq(&chip->reg_lock); 644 old_control = chip->reg_control; 645 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) 646 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); 647 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 648 changed = chip->reg_control != old_control; 649 spin_unlock_irq(&chip->reg_lock); 650 return changed; 651 } 652 653 static const struct snd_kcontrol_new snd_bt87x_capture_source = { 654 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 655 .name = "Capture Source", 656 .info = snd_bt87x_capture_source_info, 657 .get = snd_bt87x_capture_source_get, 658 .put = snd_bt87x_capture_source_put, 659 }; 660 661 static int snd_bt87x_free(struct snd_bt87x *chip) 662 { 663 if (chip->mmio) 664 snd_bt87x_stop(chip); 665 if (chip->irq >= 0) 666 free_irq(chip->irq, chip); 667 iounmap(chip->mmio); 668 pci_release_regions(chip->pci); 669 pci_disable_device(chip->pci); 670 kfree(chip); 671 return 0; 672 } 673 674 static int snd_bt87x_dev_free(struct snd_device *device) 675 { 676 struct snd_bt87x *chip = device->device_data; 677 return snd_bt87x_free(chip); 678 } 679 680 static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) 681 { 682 int err; 683 struct snd_pcm *pcm; 684 685 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); 686 if (err < 0) 687 return err; 688 pcm->private_data = chip; 689 strcpy(pcm->name, name); 690 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops); 691 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG, 692 &chip->pci->dev, 693 128 * 1024, 694 ALIGN(255 * 4092, 1024)); 695 return 0; 696 } 697 698 static int snd_bt87x_create(struct snd_card *card, 699 struct pci_dev *pci, 700 struct snd_bt87x **rchip) 701 { 702 struct snd_bt87x *chip; 703 int err; 704 static const struct snd_device_ops ops = { 705 .dev_free = snd_bt87x_dev_free 706 }; 707 708 *rchip = NULL; 709 710 err = pci_enable_device(pci); 711 if (err < 0) 712 return err; 713 714 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 715 if (!chip) { 716 pci_disable_device(pci); 717 return -ENOMEM; 718 } 719 chip->card = card; 720 chip->pci = pci; 721 chip->irq = -1; 722 spin_lock_init(&chip->reg_lock); 723 724 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) { 725 kfree(chip); 726 pci_disable_device(pci); 727 return err; 728 } 729 chip->mmio = pci_ioremap_bar(pci, 0); 730 if (!chip->mmio) { 731 dev_err(card->dev, "cannot remap io memory\n"); 732 err = -ENOMEM; 733 goto fail; 734 } 735 736 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | 737 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); 738 chip->interrupt_mask = MY_INTERRUPTS; 739 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 740 snd_bt87x_writel(chip, REG_INT_MASK, 0); 741 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 742 743 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, 744 KBUILD_MODNAME, chip); 745 if (err < 0) { 746 dev_err(card->dev, "cannot grab irq %d\n", pci->irq); 747 goto fail; 748 } 749 chip->irq = pci->irq; 750 card->sync_irq = chip->irq; 751 pci_set_master(pci); 752 753 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 754 if (err < 0) 755 goto fail; 756 757 *rchip = chip; 758 return 0; 759 760 fail: 761 snd_bt87x_free(chip); 762 return err; 763 } 764 765 #define BT_DEVICE(chip, subvend, subdev, id) \ 766 { .vendor = PCI_VENDOR_ID_BROOKTREE, \ 767 .device = chip, \ 768 .subvendor = subvend, .subdevice = subdev, \ 769 .driver_data = SND_BT87X_BOARD_ ## id } 770 /* driver_data is the card id for that device */ 771 772 static const struct pci_device_id snd_bt87x_ids[] = { 773 /* Hauppauge WinTV series */ 774 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), 775 /* Hauppauge WinTV series */ 776 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), 777 /* Viewcast Osprey 200 */ 778 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), 779 /* Viewcast Osprey 440 (rate is configurable via gpio) */ 780 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), 781 /* ATI TV-Wonder */ 782 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), 783 /* Leadtek Winfast tv 2000xp delux */ 784 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), 785 /* Pinnacle PCTV */ 786 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC), 787 /* Voodoo TV 200 */ 788 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), 789 /* Askey Computer Corp. MagicTView'99 */ 790 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC), 791 /* AVerMedia Studio No. 103, 203, ...? */ 792 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), 793 /* Prolink PixelView PV-M4900 */ 794 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), 795 /* Pinnacle Studio PCTV rave */ 796 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), 797 { } 798 }; 799 MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); 800 801 /* cards known not to have audio 802 * (DVB cards use the audio function to transfer MPEG data) */ 803 static struct { 804 unsigned short subvendor, subdevice; 805 } denylist[] = { 806 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ 807 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ 808 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ 809 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ 810 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ 811 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ 812 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ 813 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ 814 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ 815 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ 816 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ 817 }; 818 819 static struct pci_driver driver; 820 821 /* return the id of the card, or a negative value if it's on the denylist */ 822 static int snd_bt87x_detect_card(struct pci_dev *pci) 823 { 824 int i; 825 const struct pci_device_id *supported; 826 827 supported = pci_match_id(snd_bt87x_ids, pci); 828 if (supported && supported->driver_data > 0) 829 return supported->driver_data; 830 831 for (i = 0; i < ARRAY_SIZE(denylist); ++i) 832 if (denylist[i].subvendor == pci->subsystem_vendor && 833 denylist[i].subdevice == pci->subsystem_device) { 834 dev_dbg(&pci->dev, 835 "card %#04x-%#04x:%#04x has no audio\n", 836 pci->device, pci->subsystem_vendor, pci->subsystem_device); 837 return -EBUSY; 838 } 839 840 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n", 841 pci->device, pci->subsystem_vendor, pci->subsystem_device); 842 dev_info(&pci->dev, "please mail id, board name, and, " 843 "if it works, the correct digital_rate option to " 844 "<alsa-devel@alsa-project.org>\n"); 845 return SND_BT87X_BOARD_UNKNOWN; 846 } 847 848 static int snd_bt87x_probe(struct pci_dev *pci, 849 const struct pci_device_id *pci_id) 850 { 851 static int dev; 852 struct snd_card *card; 853 struct snd_bt87x *chip; 854 int err; 855 enum snd_bt87x_boardid boardid; 856 857 if (!pci_id->driver_data) { 858 err = snd_bt87x_detect_card(pci); 859 if (err < 0) 860 return -ENODEV; 861 boardid = err; 862 } else 863 boardid = pci_id->driver_data; 864 865 if (dev >= SNDRV_CARDS) 866 return -ENODEV; 867 if (!enable[dev]) { 868 ++dev; 869 return -ENOENT; 870 } 871 872 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 873 0, &card); 874 if (err < 0) 875 return err; 876 877 err = snd_bt87x_create(card, pci, &chip); 878 if (err < 0) 879 goto _error; 880 881 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); 882 883 if (!chip->board.no_digital) { 884 if (digital_rate[dev] > 0) 885 chip->board.dig_rate = digital_rate[dev]; 886 887 chip->reg_control |= chip->board.digital_fmt; 888 889 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); 890 if (err < 0) 891 goto _error; 892 } 893 if (!chip->board.no_analog) { 894 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); 895 if (err < 0) 896 goto _error; 897 err = snd_ctl_add(card, snd_ctl_new1( 898 &snd_bt87x_capture_volume, chip)); 899 if (err < 0) 900 goto _error; 901 err = snd_ctl_add(card, snd_ctl_new1( 902 &snd_bt87x_capture_boost, chip)); 903 if (err < 0) 904 goto _error; 905 err = snd_ctl_add(card, snd_ctl_new1( 906 &snd_bt87x_capture_source, chip)); 907 if (err < 0) 908 goto _error; 909 } 910 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital " 911 "(rate %d Hz)\n", dev, boardid, 912 chip->board.no_analog ? "no " : "", 913 chip->board.no_digital ? "no " : "", chip->board.dig_rate); 914 915 strcpy(card->driver, "Bt87x"); 916 sprintf(card->shortname, "Brooktree Bt%x", pci->device); 917 sprintf(card->longname, "%s at %#llx, irq %i", 918 card->shortname, (unsigned long long)pci_resource_start(pci, 0), 919 chip->irq); 920 strcpy(card->mixername, "Bt87x"); 921 922 err = snd_card_register(card); 923 if (err < 0) 924 goto _error; 925 926 pci_set_drvdata(pci, card); 927 ++dev; 928 return 0; 929 930 _error: 931 snd_card_free(card); 932 return err; 933 } 934 935 static void snd_bt87x_remove(struct pci_dev *pci) 936 { 937 snd_card_free(pci_get_drvdata(pci)); 938 } 939 940 /* default entries for all Bt87x cards - it's not exported */ 941 /* driver_data is set to 0 to call detection */ 942 static const struct pci_device_id snd_bt87x_default_ids[] = { 943 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 944 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 945 { } 946 }; 947 948 static struct pci_driver driver = { 949 .name = KBUILD_MODNAME, 950 .id_table = snd_bt87x_ids, 951 .probe = snd_bt87x_probe, 952 .remove = snd_bt87x_remove, 953 }; 954 955 static int __init alsa_card_bt87x_init(void) 956 { 957 if (load_all) 958 driver.id_table = snd_bt87x_default_ids; 959 return pci_register_driver(&driver); 960 } 961 962 static void __exit alsa_card_bt87x_exit(void) 963 { 964 pci_unregister_driver(&driver); 965 } 966 967 module_init(alsa_card_bt87x_init) 968 module_exit(alsa_card_bt87x_exit) 969