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 the non-whitelisted cards */ 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 the non-whitelisted cards"); 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 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 u16 pci_status; 275 276 pci_read_config_word(chip->pci, PCI_STATUS, &pci_status); 277 pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT | 278 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT | 279 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY; 280 pci_write_config_word(chip->pci, PCI_STATUS, pci_status); 281 if (pci_status != PCI_STATUS_DETECTED_PARITY) 282 dev_err(chip->card->dev, 283 "Aieee - PCI error! status %#08x, PCI status %#04x\n", 284 status & ERROR_INTERRUPTS, pci_status); 285 else { 286 dev_err(chip->card->dev, 287 "Aieee - PCI parity error detected!\n"); 288 /* error 'handling' similar to aic7xxx_pci.c: */ 289 chip->pci_parity_errors++; 290 if (chip->pci_parity_errors > 20) { 291 dev_err(chip->card->dev, 292 "Too many PCI parity errors observed.\n"); 293 dev_err(chip->card->dev, 294 "Some device on this bus is generating bad parity.\n"); 295 dev_err(chip->card->dev, 296 "This is an error *observed by*, not *generated by*, this card.\n"); 297 dev_err(chip->card->dev, 298 "PCI parity error checking has been disabled.\n"); 299 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR); 300 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 301 } 302 } 303 } 304 305 static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id) 306 { 307 struct snd_bt87x *chip = dev_id; 308 unsigned int status, irq_status; 309 310 status = snd_bt87x_readl(chip, REG_INT_STAT); 311 irq_status = status & chip->interrupt_mask; 312 if (!irq_status) 313 return IRQ_NONE; 314 snd_bt87x_writel(chip, REG_INT_STAT, irq_status); 315 316 if (irq_status & ERROR_INTERRUPTS) { 317 if (irq_status & (INT_FBUS | INT_FTRGT)) 318 dev_warn(chip->card->dev, 319 "FIFO overrun, status %#08x\n", status); 320 if (irq_status & INT_OCERR) 321 dev_err(chip->card->dev, 322 "internal RISC error, status %#08x\n", status); 323 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT)) 324 snd_bt87x_pci_error(chip, irq_status); 325 } 326 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) { 327 int current_block, irq_block; 328 329 /* assume that exactly one line has been recorded */ 330 chip->current_line = (chip->current_line + 1) % chip->lines; 331 /* but check if some interrupts have been skipped */ 332 current_block = chip->current_line * 16 / chip->lines; 333 irq_block = status >> INT_RISCS_SHIFT; 334 if (current_block != irq_block) 335 chip->current_line = (irq_block * chip->lines + 15) / 16; 336 337 snd_pcm_period_elapsed(chip->substream); 338 } 339 return IRQ_HANDLED; 340 } 341 342 static const struct snd_pcm_hardware snd_bt87x_digital_hw = { 343 .info = SNDRV_PCM_INFO_MMAP | 344 SNDRV_PCM_INFO_INTERLEAVED | 345 SNDRV_PCM_INFO_BLOCK_TRANSFER | 346 SNDRV_PCM_INFO_MMAP_VALID | 347 SNDRV_PCM_INFO_BATCH, 348 .formats = SNDRV_PCM_FMTBIT_S16_LE, 349 .rates = 0, /* set at runtime */ 350 .channels_min = 2, 351 .channels_max = 2, 352 .buffer_bytes_max = 255 * 4092, 353 .period_bytes_min = 32, 354 .period_bytes_max = 4092, 355 .periods_min = 2, 356 .periods_max = 255, 357 }; 358 359 static const struct snd_pcm_hardware snd_bt87x_analog_hw = { 360 .info = SNDRV_PCM_INFO_MMAP | 361 SNDRV_PCM_INFO_INTERLEAVED | 362 SNDRV_PCM_INFO_BLOCK_TRANSFER | 363 SNDRV_PCM_INFO_MMAP_VALID | 364 SNDRV_PCM_INFO_BATCH, 365 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, 366 .rates = SNDRV_PCM_RATE_KNOT, 367 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, 368 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, 369 .channels_min = 1, 370 .channels_max = 1, 371 .buffer_bytes_max = 255 * 4092, 372 .period_bytes_min = 32, 373 .period_bytes_max = 4092, 374 .periods_min = 2, 375 .periods_max = 255, 376 }; 377 378 static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 379 { 380 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN; 381 runtime->hw = snd_bt87x_digital_hw; 382 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate); 383 runtime->hw.rate_min = chip->board.dig_rate; 384 runtime->hw.rate_max = chip->board.dig_rate; 385 return 0; 386 } 387 388 static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 389 { 390 static const struct snd_ratnum analog_clock = { 391 .num = ANALOG_CLOCK, 392 .den_min = CLOCK_DIV_MIN, 393 .den_max = CLOCK_DIV_MAX, 394 .den_step = 1 395 }; 396 static const struct snd_pcm_hw_constraint_ratnums constraint_rates = { 397 .nrats = 1, 398 .rats = &analog_clock 399 }; 400 401 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN); 402 runtime->hw = snd_bt87x_analog_hw; 403 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 404 &constraint_rates); 405 } 406 407 static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) 408 { 409 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 410 struct snd_pcm_runtime *runtime = substream->runtime; 411 int err; 412 413 if (test_and_set_bit(0, &chip->opened)) 414 return -EBUSY; 415 416 if (substream->pcm->device == DEVICE_DIGITAL) 417 err = snd_bt87x_set_digital_hw(chip, runtime); 418 else 419 err = snd_bt87x_set_analog_hw(chip, runtime); 420 if (err < 0) 421 goto _error; 422 423 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 424 if (err < 0) 425 goto _error; 426 427 chip->substream = substream; 428 return 0; 429 430 _error: 431 clear_bit(0, &chip->opened); 432 smp_mb__after_atomic(); 433 return err; 434 } 435 436 static int snd_bt87x_close(struct snd_pcm_substream *substream) 437 { 438 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 439 440 spin_lock_irq(&chip->reg_lock); 441 chip->reg_control |= CTL_A_PWRDN; 442 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 443 spin_unlock_irq(&chip->reg_lock); 444 445 chip->substream = NULL; 446 clear_bit(0, &chip->opened); 447 smp_mb__after_atomic(); 448 return 0; 449 } 450 451 static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, 452 struct snd_pcm_hw_params *hw_params) 453 { 454 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 455 int err; 456 457 err = snd_pcm_lib_malloc_pages(substream, 458 params_buffer_bytes(hw_params)); 459 if (err < 0) 460 return err; 461 return snd_bt87x_create_risc(chip, substream, 462 params_periods(hw_params), 463 params_period_bytes(hw_params)); 464 } 465 466 static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) 467 { 468 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 469 470 snd_bt87x_free_risc(chip); 471 snd_pcm_lib_free_pages(substream); 472 return 0; 473 } 474 475 static int snd_bt87x_prepare(struct snd_pcm_substream *substream) 476 { 477 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 478 struct snd_pcm_runtime *runtime = substream->runtime; 479 int decimation; 480 481 spin_lock_irq(&chip->reg_lock); 482 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); 483 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate; 484 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT; 485 if (runtime->format == SNDRV_PCM_FORMAT_S8) 486 chip->reg_control |= CTL_DA_SBR; 487 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 488 spin_unlock_irq(&chip->reg_lock); 489 return 0; 490 } 491 492 static int snd_bt87x_start(struct snd_bt87x *chip) 493 { 494 spin_lock(&chip->reg_lock); 495 chip->current_line = 0; 496 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN; 497 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr); 498 snd_bt87x_writel(chip, REG_PACKET_LEN, 499 chip->line_bytes | (chip->lines << 16)); 500 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 501 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 502 spin_unlock(&chip->reg_lock); 503 return 0; 504 } 505 506 static int snd_bt87x_stop(struct snd_bt87x *chip) 507 { 508 spin_lock(&chip->reg_lock); 509 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN); 510 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 511 snd_bt87x_writel(chip, REG_INT_MASK, 0); 512 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 513 spin_unlock(&chip->reg_lock); 514 return 0; 515 } 516 517 static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) 518 { 519 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 520 521 switch (cmd) { 522 case SNDRV_PCM_TRIGGER_START: 523 return snd_bt87x_start(chip); 524 case SNDRV_PCM_TRIGGER_STOP: 525 return snd_bt87x_stop(chip); 526 default: 527 return -EINVAL; 528 } 529 } 530 531 static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) 532 { 533 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 534 struct snd_pcm_runtime *runtime = substream->runtime; 535 536 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); 537 } 538 539 static const struct snd_pcm_ops snd_bt87x_pcm_ops = { 540 .open = snd_bt87x_pcm_open, 541 .close = snd_bt87x_close, 542 .ioctl = snd_pcm_lib_ioctl, 543 .hw_params = snd_bt87x_hw_params, 544 .hw_free = snd_bt87x_hw_free, 545 .prepare = snd_bt87x_prepare, 546 .trigger = snd_bt87x_trigger, 547 .pointer = snd_bt87x_pointer, 548 }; 549 550 static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, 551 struct snd_ctl_elem_info *info) 552 { 553 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 554 info->count = 1; 555 info->value.integer.min = 0; 556 info->value.integer.max = 15; 557 return 0; 558 } 559 560 static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, 561 struct snd_ctl_elem_value *value) 562 { 563 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 564 565 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; 566 return 0; 567 } 568 569 static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, 570 struct snd_ctl_elem_value *value) 571 { 572 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 573 u32 old_control; 574 int changed; 575 576 spin_lock_irq(&chip->reg_lock); 577 old_control = chip->reg_control; 578 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) 579 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); 580 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 581 changed = old_control != chip->reg_control; 582 spin_unlock_irq(&chip->reg_lock); 583 return changed; 584 } 585 586 static const struct snd_kcontrol_new snd_bt87x_capture_volume = { 587 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 588 .name = "Capture Volume", 589 .info = snd_bt87x_capture_volume_info, 590 .get = snd_bt87x_capture_volume_get, 591 .put = snd_bt87x_capture_volume_put, 592 }; 593 594 #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info 595 596 static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, 597 struct snd_ctl_elem_value *value) 598 { 599 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 600 601 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); 602 return 0; 603 } 604 605 static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, 606 struct snd_ctl_elem_value *value) 607 { 608 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 609 u32 old_control; 610 int changed; 611 612 spin_lock_irq(&chip->reg_lock); 613 old_control = chip->reg_control; 614 chip->reg_control = (chip->reg_control & ~CTL_A_G2X) 615 | (value->value.integer.value[0] ? CTL_A_G2X : 0); 616 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 617 changed = chip->reg_control != old_control; 618 spin_unlock_irq(&chip->reg_lock); 619 return changed; 620 } 621 622 static const struct snd_kcontrol_new snd_bt87x_capture_boost = { 623 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 624 .name = "Capture Boost", 625 .info = snd_bt87x_capture_boost_info, 626 .get = snd_bt87x_capture_boost_get, 627 .put = snd_bt87x_capture_boost_put, 628 }; 629 630 static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, 631 struct snd_ctl_elem_info *info) 632 { 633 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"}; 634 635 return snd_ctl_enum_info(info, 1, 3, texts); 636 } 637 638 static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, 639 struct snd_ctl_elem_value *value) 640 { 641 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 642 643 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; 644 return 0; 645 } 646 647 static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, 648 struct snd_ctl_elem_value *value) 649 { 650 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 651 u32 old_control; 652 int changed; 653 654 spin_lock_irq(&chip->reg_lock); 655 old_control = chip->reg_control; 656 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) 657 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); 658 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 659 changed = chip->reg_control != old_control; 660 spin_unlock_irq(&chip->reg_lock); 661 return changed; 662 } 663 664 static const struct snd_kcontrol_new snd_bt87x_capture_source = { 665 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 666 .name = "Capture Source", 667 .info = snd_bt87x_capture_source_info, 668 .get = snd_bt87x_capture_source_get, 669 .put = snd_bt87x_capture_source_put, 670 }; 671 672 static int snd_bt87x_free(struct snd_bt87x *chip) 673 { 674 if (chip->mmio) 675 snd_bt87x_stop(chip); 676 if (chip->irq >= 0) 677 free_irq(chip->irq, chip); 678 iounmap(chip->mmio); 679 pci_release_regions(chip->pci); 680 pci_disable_device(chip->pci); 681 kfree(chip); 682 return 0; 683 } 684 685 static int snd_bt87x_dev_free(struct snd_device *device) 686 { 687 struct snd_bt87x *chip = device->device_data; 688 return snd_bt87x_free(chip); 689 } 690 691 static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) 692 { 693 int err; 694 struct snd_pcm *pcm; 695 696 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); 697 if (err < 0) 698 return err; 699 pcm->private_data = chip; 700 strcpy(pcm->name, name); 701 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops); 702 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, 703 &chip->pci->dev, 704 128 * 1024, 705 ALIGN(255 * 4092, 1024)); 706 return 0; 707 } 708 709 static int snd_bt87x_create(struct snd_card *card, 710 struct pci_dev *pci, 711 struct snd_bt87x **rchip) 712 { 713 struct snd_bt87x *chip; 714 int err; 715 static struct snd_device_ops ops = { 716 .dev_free = snd_bt87x_dev_free 717 }; 718 719 *rchip = NULL; 720 721 err = pci_enable_device(pci); 722 if (err < 0) 723 return err; 724 725 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 726 if (!chip) { 727 pci_disable_device(pci); 728 return -ENOMEM; 729 } 730 chip->card = card; 731 chip->pci = pci; 732 chip->irq = -1; 733 spin_lock_init(&chip->reg_lock); 734 735 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) { 736 kfree(chip); 737 pci_disable_device(pci); 738 return err; 739 } 740 chip->mmio = pci_ioremap_bar(pci, 0); 741 if (!chip->mmio) { 742 dev_err(card->dev, "cannot remap io memory\n"); 743 err = -ENOMEM; 744 goto fail; 745 } 746 747 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | 748 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); 749 chip->interrupt_mask = MY_INTERRUPTS; 750 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 751 snd_bt87x_writel(chip, REG_INT_MASK, 0); 752 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 753 754 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, 755 KBUILD_MODNAME, chip); 756 if (err < 0) { 757 dev_err(card->dev, "cannot grab irq %d\n", pci->irq); 758 goto fail; 759 } 760 chip->irq = pci->irq; 761 pci_set_master(pci); 762 synchronize_irq(chip->irq); 763 764 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 765 if (err < 0) 766 goto fail; 767 768 *rchip = chip; 769 return 0; 770 771 fail: 772 snd_bt87x_free(chip); 773 return err; 774 } 775 776 #define BT_DEVICE(chip, subvend, subdev, id) \ 777 { .vendor = PCI_VENDOR_ID_BROOKTREE, \ 778 .device = chip, \ 779 .subvendor = subvend, .subdevice = subdev, \ 780 .driver_data = SND_BT87X_BOARD_ ## id } 781 /* driver_data is the card id for that device */ 782 783 static const struct pci_device_id snd_bt87x_ids[] = { 784 /* Hauppauge WinTV series */ 785 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), 786 /* Hauppauge WinTV series */ 787 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), 788 /* Viewcast Osprey 200 */ 789 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), 790 /* Viewcast Osprey 440 (rate is configurable via gpio) */ 791 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), 792 /* ATI TV-Wonder */ 793 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), 794 /* Leadtek Winfast tv 2000xp delux */ 795 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), 796 /* Pinnacle PCTV */ 797 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC), 798 /* Voodoo TV 200 */ 799 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), 800 /* Askey Computer Corp. MagicTView'99 */ 801 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC), 802 /* AVerMedia Studio No. 103, 203, ...? */ 803 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), 804 /* Prolink PixelView PV-M4900 */ 805 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), 806 /* Pinnacle Studio PCTV rave */ 807 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), 808 { } 809 }; 810 MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); 811 812 /* cards known not to have audio 813 * (DVB cards use the audio function to transfer MPEG data) */ 814 static struct { 815 unsigned short subvendor, subdevice; 816 } blacklist[] = { 817 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ 818 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ 819 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ 820 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ 821 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ 822 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ 823 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ 824 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ 825 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ 826 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ 827 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ 828 }; 829 830 static struct pci_driver driver; 831 832 /* return the id of the card, or a negative value if it's blacklisted */ 833 static int snd_bt87x_detect_card(struct pci_dev *pci) 834 { 835 int i; 836 const struct pci_device_id *supported; 837 838 supported = pci_match_id(snd_bt87x_ids, pci); 839 if (supported && supported->driver_data > 0) 840 return supported->driver_data; 841 842 for (i = 0; i < ARRAY_SIZE(blacklist); ++i) 843 if (blacklist[i].subvendor == pci->subsystem_vendor && 844 blacklist[i].subdevice == pci->subsystem_device) { 845 dev_dbg(&pci->dev, 846 "card %#04x-%#04x:%#04x has no audio\n", 847 pci->device, pci->subsystem_vendor, pci->subsystem_device); 848 return -EBUSY; 849 } 850 851 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n", 852 pci->device, pci->subsystem_vendor, pci->subsystem_device); 853 dev_info(&pci->dev, "please mail id, board name, and, " 854 "if it works, the correct digital_rate option to " 855 "<alsa-devel@alsa-project.org>\n"); 856 return SND_BT87X_BOARD_UNKNOWN; 857 } 858 859 static int snd_bt87x_probe(struct pci_dev *pci, 860 const struct pci_device_id *pci_id) 861 { 862 static int dev; 863 struct snd_card *card; 864 struct snd_bt87x *chip; 865 int err; 866 enum snd_bt87x_boardid boardid; 867 868 if (!pci_id->driver_data) { 869 err = snd_bt87x_detect_card(pci); 870 if (err < 0) 871 return -ENODEV; 872 boardid = err; 873 } else 874 boardid = pci_id->driver_data; 875 876 if (dev >= SNDRV_CARDS) 877 return -ENODEV; 878 if (!enable[dev]) { 879 ++dev; 880 return -ENOENT; 881 } 882 883 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 884 0, &card); 885 if (err < 0) 886 return err; 887 888 err = snd_bt87x_create(card, pci, &chip); 889 if (err < 0) 890 goto _error; 891 892 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); 893 894 if (!chip->board.no_digital) { 895 if (digital_rate[dev] > 0) 896 chip->board.dig_rate = digital_rate[dev]; 897 898 chip->reg_control |= chip->board.digital_fmt; 899 900 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); 901 if (err < 0) 902 goto _error; 903 } 904 if (!chip->board.no_analog) { 905 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); 906 if (err < 0) 907 goto _error; 908 err = snd_ctl_add(card, snd_ctl_new1( 909 &snd_bt87x_capture_volume, chip)); 910 if (err < 0) 911 goto _error; 912 err = snd_ctl_add(card, snd_ctl_new1( 913 &snd_bt87x_capture_boost, chip)); 914 if (err < 0) 915 goto _error; 916 err = snd_ctl_add(card, snd_ctl_new1( 917 &snd_bt87x_capture_source, chip)); 918 if (err < 0) 919 goto _error; 920 } 921 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital " 922 "(rate %d Hz)\n", dev, boardid, 923 chip->board.no_analog ? "no " : "", 924 chip->board.no_digital ? "no " : "", chip->board.dig_rate); 925 926 strcpy(card->driver, "Bt87x"); 927 sprintf(card->shortname, "Brooktree Bt%x", pci->device); 928 sprintf(card->longname, "%s at %#llx, irq %i", 929 card->shortname, (unsigned long long)pci_resource_start(pci, 0), 930 chip->irq); 931 strcpy(card->mixername, "Bt87x"); 932 933 err = snd_card_register(card); 934 if (err < 0) 935 goto _error; 936 937 pci_set_drvdata(pci, card); 938 ++dev; 939 return 0; 940 941 _error: 942 snd_card_free(card); 943 return err; 944 } 945 946 static void snd_bt87x_remove(struct pci_dev *pci) 947 { 948 snd_card_free(pci_get_drvdata(pci)); 949 } 950 951 /* default entries for all Bt87x cards - it's not exported */ 952 /* driver_data is set to 0 to call detection */ 953 static const struct pci_device_id snd_bt87x_default_ids[] = { 954 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 955 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 956 { } 957 }; 958 959 static struct pci_driver driver = { 960 .name = KBUILD_MODNAME, 961 .id_table = snd_bt87x_ids, 962 .probe = snd_bt87x_probe, 963 .remove = snd_bt87x_remove, 964 }; 965 966 static int __init alsa_card_bt87x_init(void) 967 { 968 if (load_all) 969 driver.id_table = snd_bt87x_default_ids; 970 return pci_register_driver(&driver); 971 } 972 973 static void __exit alsa_card_bt87x_exit(void) 974 { 975 pci_unregister_driver(&driver); 976 } 977 978 module_init(alsa_card_bt87x_init) 979 module_exit(alsa_card_bt87x_exit) 980