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, snd_dma_pci_data(chip->pci), 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 .page = snd_pcm_sgbuf_ops_page, 549 }; 550 551 static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, 552 struct snd_ctl_elem_info *info) 553 { 554 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 555 info->count = 1; 556 info->value.integer.min = 0; 557 info->value.integer.max = 15; 558 return 0; 559 } 560 561 static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, 562 struct snd_ctl_elem_value *value) 563 { 564 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 565 566 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; 567 return 0; 568 } 569 570 static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, 571 struct snd_ctl_elem_value *value) 572 { 573 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 574 u32 old_control; 575 int changed; 576 577 spin_lock_irq(&chip->reg_lock); 578 old_control = chip->reg_control; 579 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) 580 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); 581 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 582 changed = old_control != chip->reg_control; 583 spin_unlock_irq(&chip->reg_lock); 584 return changed; 585 } 586 587 static const struct snd_kcontrol_new snd_bt87x_capture_volume = { 588 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 589 .name = "Capture Volume", 590 .info = snd_bt87x_capture_volume_info, 591 .get = snd_bt87x_capture_volume_get, 592 .put = snd_bt87x_capture_volume_put, 593 }; 594 595 #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info 596 597 static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, 598 struct snd_ctl_elem_value *value) 599 { 600 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 601 602 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); 603 return 0; 604 } 605 606 static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, 607 struct snd_ctl_elem_value *value) 608 { 609 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 610 u32 old_control; 611 int changed; 612 613 spin_lock_irq(&chip->reg_lock); 614 old_control = chip->reg_control; 615 chip->reg_control = (chip->reg_control & ~CTL_A_G2X) 616 | (value->value.integer.value[0] ? CTL_A_G2X : 0); 617 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 618 changed = chip->reg_control != old_control; 619 spin_unlock_irq(&chip->reg_lock); 620 return changed; 621 } 622 623 static const struct snd_kcontrol_new snd_bt87x_capture_boost = { 624 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 625 .name = "Capture Boost", 626 .info = snd_bt87x_capture_boost_info, 627 .get = snd_bt87x_capture_boost_get, 628 .put = snd_bt87x_capture_boost_put, 629 }; 630 631 static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, 632 struct snd_ctl_elem_info *info) 633 { 634 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"}; 635 636 return snd_ctl_enum_info(info, 1, 3, texts); 637 } 638 639 static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, 640 struct snd_ctl_elem_value *value) 641 { 642 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 643 644 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; 645 return 0; 646 } 647 648 static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, 649 struct snd_ctl_elem_value *value) 650 { 651 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 652 u32 old_control; 653 int changed; 654 655 spin_lock_irq(&chip->reg_lock); 656 old_control = chip->reg_control; 657 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) 658 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); 659 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 660 changed = chip->reg_control != old_control; 661 spin_unlock_irq(&chip->reg_lock); 662 return changed; 663 } 664 665 static const struct snd_kcontrol_new snd_bt87x_capture_source = { 666 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 667 .name = "Capture Source", 668 .info = snd_bt87x_capture_source_info, 669 .get = snd_bt87x_capture_source_get, 670 .put = snd_bt87x_capture_source_put, 671 }; 672 673 static int snd_bt87x_free(struct snd_bt87x *chip) 674 { 675 if (chip->mmio) 676 snd_bt87x_stop(chip); 677 if (chip->irq >= 0) 678 free_irq(chip->irq, chip); 679 iounmap(chip->mmio); 680 pci_release_regions(chip->pci); 681 pci_disable_device(chip->pci); 682 kfree(chip); 683 return 0; 684 } 685 686 static int snd_bt87x_dev_free(struct snd_device *device) 687 { 688 struct snd_bt87x *chip = device->device_data; 689 return snd_bt87x_free(chip); 690 } 691 692 static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) 693 { 694 int err; 695 struct snd_pcm *pcm; 696 697 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); 698 if (err < 0) 699 return err; 700 pcm->private_data = chip; 701 strcpy(pcm->name, name); 702 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops); 703 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, 704 snd_dma_pci_data(chip->pci), 705 128 * 1024, 706 ALIGN(255 * 4092, 1024)); 707 return 0; 708 } 709 710 static int snd_bt87x_create(struct snd_card *card, 711 struct pci_dev *pci, 712 struct snd_bt87x **rchip) 713 { 714 struct snd_bt87x *chip; 715 int err; 716 static struct snd_device_ops ops = { 717 .dev_free = snd_bt87x_dev_free 718 }; 719 720 *rchip = NULL; 721 722 err = pci_enable_device(pci); 723 if (err < 0) 724 return err; 725 726 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 727 if (!chip) { 728 pci_disable_device(pci); 729 return -ENOMEM; 730 } 731 chip->card = card; 732 chip->pci = pci; 733 chip->irq = -1; 734 spin_lock_init(&chip->reg_lock); 735 736 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) { 737 kfree(chip); 738 pci_disable_device(pci); 739 return err; 740 } 741 chip->mmio = pci_ioremap_bar(pci, 0); 742 if (!chip->mmio) { 743 dev_err(card->dev, "cannot remap io memory\n"); 744 err = -ENOMEM; 745 goto fail; 746 } 747 748 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | 749 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); 750 chip->interrupt_mask = MY_INTERRUPTS; 751 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 752 snd_bt87x_writel(chip, REG_INT_MASK, 0); 753 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 754 755 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, 756 KBUILD_MODNAME, chip); 757 if (err < 0) { 758 dev_err(card->dev, "cannot grab irq %d\n", pci->irq); 759 goto fail; 760 } 761 chip->irq = pci->irq; 762 pci_set_master(pci); 763 synchronize_irq(chip->irq); 764 765 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 766 if (err < 0) 767 goto fail; 768 769 *rchip = chip; 770 return 0; 771 772 fail: 773 snd_bt87x_free(chip); 774 return err; 775 } 776 777 #define BT_DEVICE(chip, subvend, subdev, id) \ 778 { .vendor = PCI_VENDOR_ID_BROOKTREE, \ 779 .device = chip, \ 780 .subvendor = subvend, .subdevice = subdev, \ 781 .driver_data = SND_BT87X_BOARD_ ## id } 782 /* driver_data is the card id for that device */ 783 784 static const struct pci_device_id snd_bt87x_ids[] = { 785 /* Hauppauge WinTV series */ 786 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), 787 /* Hauppauge WinTV series */ 788 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), 789 /* Viewcast Osprey 200 */ 790 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), 791 /* Viewcast Osprey 440 (rate is configurable via gpio) */ 792 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), 793 /* ATI TV-Wonder */ 794 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), 795 /* Leadtek Winfast tv 2000xp delux */ 796 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), 797 /* Pinnacle PCTV */ 798 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC), 799 /* Voodoo TV 200 */ 800 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), 801 /* Askey Computer Corp. MagicTView'99 */ 802 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC), 803 /* AVerMedia Studio No. 103, 203, ...? */ 804 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), 805 /* Prolink PixelView PV-M4900 */ 806 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), 807 /* Pinnacle Studio PCTV rave */ 808 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), 809 { } 810 }; 811 MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); 812 813 /* cards known not to have audio 814 * (DVB cards use the audio function to transfer MPEG data) */ 815 static struct { 816 unsigned short subvendor, subdevice; 817 } blacklist[] = { 818 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ 819 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ 820 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ 821 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ 822 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ 823 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ 824 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ 825 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ 826 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ 827 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ 828 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ 829 }; 830 831 static struct pci_driver driver; 832 833 /* return the id of the card, or a negative value if it's blacklisted */ 834 static int snd_bt87x_detect_card(struct pci_dev *pci) 835 { 836 int i; 837 const struct pci_device_id *supported; 838 839 supported = pci_match_id(snd_bt87x_ids, pci); 840 if (supported && supported->driver_data > 0) 841 return supported->driver_data; 842 843 for (i = 0; i < ARRAY_SIZE(blacklist); ++i) 844 if (blacklist[i].subvendor == pci->subsystem_vendor && 845 blacklist[i].subdevice == pci->subsystem_device) { 846 dev_dbg(&pci->dev, 847 "card %#04x-%#04x:%#04x has no audio\n", 848 pci->device, pci->subsystem_vendor, pci->subsystem_device); 849 return -EBUSY; 850 } 851 852 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n", 853 pci->device, pci->subsystem_vendor, pci->subsystem_device); 854 dev_info(&pci->dev, "please mail id, board name, and, " 855 "if it works, the correct digital_rate option to " 856 "<alsa-devel@alsa-project.org>\n"); 857 return SND_BT87X_BOARD_UNKNOWN; 858 } 859 860 static int snd_bt87x_probe(struct pci_dev *pci, 861 const struct pci_device_id *pci_id) 862 { 863 static int dev; 864 struct snd_card *card; 865 struct snd_bt87x *chip; 866 int err; 867 enum snd_bt87x_boardid boardid; 868 869 if (!pci_id->driver_data) { 870 err = snd_bt87x_detect_card(pci); 871 if (err < 0) 872 return -ENODEV; 873 boardid = err; 874 } else 875 boardid = pci_id->driver_data; 876 877 if (dev >= SNDRV_CARDS) 878 return -ENODEV; 879 if (!enable[dev]) { 880 ++dev; 881 return -ENOENT; 882 } 883 884 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 885 0, &card); 886 if (err < 0) 887 return err; 888 889 err = snd_bt87x_create(card, pci, &chip); 890 if (err < 0) 891 goto _error; 892 893 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); 894 895 if (!chip->board.no_digital) { 896 if (digital_rate[dev] > 0) 897 chip->board.dig_rate = digital_rate[dev]; 898 899 chip->reg_control |= chip->board.digital_fmt; 900 901 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); 902 if (err < 0) 903 goto _error; 904 } 905 if (!chip->board.no_analog) { 906 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); 907 if (err < 0) 908 goto _error; 909 err = snd_ctl_add(card, snd_ctl_new1( 910 &snd_bt87x_capture_volume, chip)); 911 if (err < 0) 912 goto _error; 913 err = snd_ctl_add(card, snd_ctl_new1( 914 &snd_bt87x_capture_boost, chip)); 915 if (err < 0) 916 goto _error; 917 err = snd_ctl_add(card, snd_ctl_new1( 918 &snd_bt87x_capture_source, chip)); 919 if (err < 0) 920 goto _error; 921 } 922 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital " 923 "(rate %d Hz)\n", dev, boardid, 924 chip->board.no_analog ? "no " : "", 925 chip->board.no_digital ? "no " : "", chip->board.dig_rate); 926 927 strcpy(card->driver, "Bt87x"); 928 sprintf(card->shortname, "Brooktree Bt%x", pci->device); 929 sprintf(card->longname, "%s at %#llx, irq %i", 930 card->shortname, (unsigned long long)pci_resource_start(pci, 0), 931 chip->irq); 932 strcpy(card->mixername, "Bt87x"); 933 934 err = snd_card_register(card); 935 if (err < 0) 936 goto _error; 937 938 pci_set_drvdata(pci, card); 939 ++dev; 940 return 0; 941 942 _error: 943 snd_card_free(card); 944 return err; 945 } 946 947 static void snd_bt87x_remove(struct pci_dev *pci) 948 { 949 snd_card_free(pci_get_drvdata(pci)); 950 } 951 952 /* default entries for all Bt87x cards - it's not exported */ 953 /* driver_data is set to 0 to call detection */ 954 static const struct pci_device_id snd_bt87x_default_ids[] = { 955 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 956 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 957 { } 958 }; 959 960 static struct pci_driver driver = { 961 .name = KBUILD_MODNAME, 962 .id_table = snd_bt87x_ids, 963 .probe = snd_bt87x_probe, 964 .remove = snd_bt87x_remove, 965 }; 966 967 static int __init alsa_card_bt87x_init(void) 968 { 969 if (load_all) 970 driver.id_table = snd_bt87x_default_ids; 971 return pci_register_driver(&driver); 972 } 973 974 static void __exit alsa_card_bt87x_exit(void) 975 { 976 pci_unregister_driver(&driver); 977 } 978 979 module_init(alsa_card_bt87x_init) 980 module_exit(alsa_card_bt87x_exit) 981