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