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/moduleparam.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 int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 46 static int digital_rate[SNDRV_CARDS]; /* digital input rate */ 47 static int 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 __devinitdata 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 struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream); 231 unsigned int i, offset; 232 u32 *risc; 233 234 if (chip->dma_risc.area == NULL) { 235 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 236 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0) 237 return -ENOMEM; 238 } 239 risc = (u32 *)chip->dma_risc.area; 240 offset = 0; 241 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1); 242 *risc++ = cpu_to_le32(0); 243 for (i = 0; i < periods; ++i) { 244 u32 rest; 245 246 rest = period_bytes; 247 do { 248 u32 cmd, len; 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 *risc++ = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, offset)); 264 offset += len; 265 rest -= len; 266 } while (rest > 0); 267 } 268 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO); 269 *risc++ = cpu_to_le32(0); 270 *risc++ = cpu_to_le32(RISC_JUMP); 271 *risc++ = cpu_to_le32(chip->dma_risc.addr); 272 chip->line_bytes = period_bytes; 273 chip->lines = periods; 274 return 0; 275 } 276 277 static void snd_bt87x_free_risc(struct snd_bt87x *chip) 278 { 279 if (chip->dma_risc.area) { 280 snd_dma_free_pages(&chip->dma_risc); 281 chip->dma_risc.area = NULL; 282 } 283 } 284 285 static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status) 286 { 287 u16 pci_status; 288 289 pci_read_config_word(chip->pci, PCI_STATUS, &pci_status); 290 pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT | 291 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT | 292 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY; 293 pci_write_config_word(chip->pci, PCI_STATUS, pci_status); 294 if (pci_status != PCI_STATUS_DETECTED_PARITY) 295 snd_printk(KERN_ERR "Aieee - PCI error! status %#08x, PCI status %#04x\n", 296 status & ERROR_INTERRUPTS, pci_status); 297 else { 298 snd_printk(KERN_ERR "Aieee - PCI parity error detected!\n"); 299 /* error 'handling' similar to aic7xxx_pci.c: */ 300 chip->pci_parity_errors++; 301 if (chip->pci_parity_errors > 20) { 302 snd_printk(KERN_ERR "Too many PCI parity errors observed.\n"); 303 snd_printk(KERN_ERR "Some device on this bus is generating bad parity.\n"); 304 snd_printk(KERN_ERR "This is an error *observed by*, not *generated by*, this card.\n"); 305 snd_printk(KERN_ERR "PCI parity error checking has been disabled.\n"); 306 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR); 307 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 308 } 309 } 310 } 311 312 static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id) 313 { 314 struct snd_bt87x *chip = dev_id; 315 unsigned int status, irq_status; 316 317 status = snd_bt87x_readl(chip, REG_INT_STAT); 318 irq_status = status & chip->interrupt_mask; 319 if (!irq_status) 320 return IRQ_NONE; 321 snd_bt87x_writel(chip, REG_INT_STAT, irq_status); 322 323 if (irq_status & ERROR_INTERRUPTS) { 324 if (irq_status & (INT_FBUS | INT_FTRGT)) 325 snd_printk(KERN_WARNING "FIFO overrun, status %#08x\n", status); 326 if (irq_status & INT_OCERR) 327 snd_printk(KERN_ERR "internal RISC error, status %#08x\n", status); 328 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT)) 329 snd_bt87x_pci_error(chip, irq_status); 330 } 331 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) { 332 int current_block, irq_block; 333 334 /* assume that exactly one line has been recorded */ 335 chip->current_line = (chip->current_line + 1) % chip->lines; 336 /* but check if some interrupts have been skipped */ 337 current_block = chip->current_line * 16 / chip->lines; 338 irq_block = status >> INT_RISCS_SHIFT; 339 if (current_block != irq_block) 340 chip->current_line = (irq_block * chip->lines + 15) / 16; 341 342 snd_pcm_period_elapsed(chip->substream); 343 } 344 return IRQ_HANDLED; 345 } 346 347 static struct snd_pcm_hardware snd_bt87x_digital_hw = { 348 .info = SNDRV_PCM_INFO_MMAP | 349 SNDRV_PCM_INFO_INTERLEAVED | 350 SNDRV_PCM_INFO_BLOCK_TRANSFER | 351 SNDRV_PCM_INFO_MMAP_VALID, 352 .formats = SNDRV_PCM_FMTBIT_S16_LE, 353 .rates = 0, /* set at runtime */ 354 .channels_min = 2, 355 .channels_max = 2, 356 .buffer_bytes_max = 255 * 4092, 357 .period_bytes_min = 32, 358 .period_bytes_max = 4092, 359 .periods_min = 2, 360 .periods_max = 255, 361 }; 362 363 static struct snd_pcm_hardware snd_bt87x_analog_hw = { 364 .info = SNDRV_PCM_INFO_MMAP | 365 SNDRV_PCM_INFO_INTERLEAVED | 366 SNDRV_PCM_INFO_BLOCK_TRANSFER | 367 SNDRV_PCM_INFO_MMAP_VALID, 368 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, 369 .rates = SNDRV_PCM_RATE_KNOT, 370 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, 371 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, 372 .channels_min = 1, 373 .channels_max = 1, 374 .buffer_bytes_max = 255 * 4092, 375 .period_bytes_min = 32, 376 .period_bytes_max = 4092, 377 .periods_min = 2, 378 .periods_max = 255, 379 }; 380 381 static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 382 { 383 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN; 384 runtime->hw = snd_bt87x_digital_hw; 385 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate); 386 runtime->hw.rate_min = chip->board.dig_rate; 387 runtime->hw.rate_max = chip->board.dig_rate; 388 return 0; 389 } 390 391 static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 392 { 393 static struct snd_ratnum analog_clock = { 394 .num = ANALOG_CLOCK, 395 .den_min = CLOCK_DIV_MIN, 396 .den_max = CLOCK_DIV_MAX, 397 .den_step = 1 398 }; 399 static struct snd_pcm_hw_constraint_ratnums constraint_rates = { 400 .nrats = 1, 401 .rats = &analog_clock 402 }; 403 404 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN); 405 runtime->hw = snd_bt87x_analog_hw; 406 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 407 &constraint_rates); 408 } 409 410 static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) 411 { 412 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 413 struct snd_pcm_runtime *runtime = substream->runtime; 414 int err; 415 416 if (test_and_set_bit(0, &chip->opened)) 417 return -EBUSY; 418 419 if (substream->pcm->device == DEVICE_DIGITAL) 420 err = snd_bt87x_set_digital_hw(chip, runtime); 421 else 422 err = snd_bt87x_set_analog_hw(chip, runtime); 423 if (err < 0) 424 goto _error; 425 426 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 427 if (err < 0) 428 goto _error; 429 430 chip->substream = substream; 431 return 0; 432 433 _error: 434 clear_bit(0, &chip->opened); 435 smp_mb__after_clear_bit(); 436 return err; 437 } 438 439 static int snd_bt87x_close(struct snd_pcm_substream *substream) 440 { 441 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 442 443 spin_lock_irq(&chip->reg_lock); 444 chip->reg_control |= CTL_A_PWRDN; 445 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 446 spin_unlock_irq(&chip->reg_lock); 447 448 chip->substream = NULL; 449 clear_bit(0, &chip->opened); 450 smp_mb__after_clear_bit(); 451 return 0; 452 } 453 454 static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, 455 struct snd_pcm_hw_params *hw_params) 456 { 457 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 458 int err; 459 460 err = snd_pcm_lib_malloc_pages(substream, 461 params_buffer_bytes(hw_params)); 462 if (err < 0) 463 return err; 464 return snd_bt87x_create_risc(chip, substream, 465 params_periods(hw_params), 466 params_period_bytes(hw_params)); 467 } 468 469 static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) 470 { 471 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 472 473 snd_bt87x_free_risc(chip); 474 snd_pcm_lib_free_pages(substream); 475 return 0; 476 } 477 478 static int snd_bt87x_prepare(struct snd_pcm_substream *substream) 479 { 480 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 481 struct snd_pcm_runtime *runtime = substream->runtime; 482 int decimation; 483 484 spin_lock_irq(&chip->reg_lock); 485 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); 486 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate; 487 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT; 488 if (runtime->format == SNDRV_PCM_FORMAT_S8) 489 chip->reg_control |= CTL_DA_SBR; 490 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 491 spin_unlock_irq(&chip->reg_lock); 492 return 0; 493 } 494 495 static int snd_bt87x_start(struct snd_bt87x *chip) 496 { 497 spin_lock(&chip->reg_lock); 498 chip->current_line = 0; 499 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN; 500 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr); 501 snd_bt87x_writel(chip, REG_PACKET_LEN, 502 chip->line_bytes | (chip->lines << 16)); 503 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 504 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 505 spin_unlock(&chip->reg_lock); 506 return 0; 507 } 508 509 static int snd_bt87x_stop(struct snd_bt87x *chip) 510 { 511 spin_lock(&chip->reg_lock); 512 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN); 513 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 514 snd_bt87x_writel(chip, REG_INT_MASK, 0); 515 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 516 spin_unlock(&chip->reg_lock); 517 return 0; 518 } 519 520 static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) 521 { 522 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 523 524 switch (cmd) { 525 case SNDRV_PCM_TRIGGER_START: 526 return snd_bt87x_start(chip); 527 case SNDRV_PCM_TRIGGER_STOP: 528 return snd_bt87x_stop(chip); 529 default: 530 return -EINVAL; 531 } 532 } 533 534 static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) 535 { 536 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 537 struct snd_pcm_runtime *runtime = substream->runtime; 538 539 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); 540 } 541 542 static struct snd_pcm_ops snd_bt87x_pcm_ops = { 543 .open = snd_bt87x_pcm_open, 544 .close = snd_bt87x_close, 545 .ioctl = snd_pcm_lib_ioctl, 546 .hw_params = snd_bt87x_hw_params, 547 .hw_free = snd_bt87x_hw_free, 548 .prepare = snd_bt87x_prepare, 549 .trigger = snd_bt87x_trigger, 550 .pointer = snd_bt87x_pointer, 551 .page = snd_pcm_sgbuf_ops_page, 552 }; 553 554 static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, 555 struct snd_ctl_elem_info *info) 556 { 557 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 558 info->count = 1; 559 info->value.integer.min = 0; 560 info->value.integer.max = 15; 561 return 0; 562 } 563 564 static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, 565 struct snd_ctl_elem_value *value) 566 { 567 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 568 569 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; 570 return 0; 571 } 572 573 static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, 574 struct snd_ctl_elem_value *value) 575 { 576 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 577 u32 old_control; 578 int changed; 579 580 spin_lock_irq(&chip->reg_lock); 581 old_control = chip->reg_control; 582 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) 583 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); 584 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 585 changed = old_control != chip->reg_control; 586 spin_unlock_irq(&chip->reg_lock); 587 return changed; 588 } 589 590 static struct snd_kcontrol_new snd_bt87x_capture_volume = { 591 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 592 .name = "Capture Volume", 593 .info = snd_bt87x_capture_volume_info, 594 .get = snd_bt87x_capture_volume_get, 595 .put = snd_bt87x_capture_volume_put, 596 }; 597 598 #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info 599 600 static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, 601 struct snd_ctl_elem_value *value) 602 { 603 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 604 605 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); 606 return 0; 607 } 608 609 static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, 610 struct snd_ctl_elem_value *value) 611 { 612 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 613 u32 old_control; 614 int changed; 615 616 spin_lock_irq(&chip->reg_lock); 617 old_control = chip->reg_control; 618 chip->reg_control = (chip->reg_control & ~CTL_A_G2X) 619 | (value->value.integer.value[0] ? CTL_A_G2X : 0); 620 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 621 changed = chip->reg_control != old_control; 622 spin_unlock_irq(&chip->reg_lock); 623 return changed; 624 } 625 626 static struct snd_kcontrol_new snd_bt87x_capture_boost = { 627 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 628 .name = "Capture Boost", 629 .info = snd_bt87x_capture_boost_info, 630 .get = snd_bt87x_capture_boost_get, 631 .put = snd_bt87x_capture_boost_put, 632 }; 633 634 static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, 635 struct snd_ctl_elem_info *info) 636 { 637 static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"}; 638 639 info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 640 info->count = 1; 641 info->value.enumerated.items = 3; 642 if (info->value.enumerated.item > 2) 643 info->value.enumerated.item = 2; 644 strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]); 645 return 0; 646 } 647 648 static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, 649 struct snd_ctl_elem_value *value) 650 { 651 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 652 653 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; 654 return 0; 655 } 656 657 static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, 658 struct snd_ctl_elem_value *value) 659 { 660 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 661 u32 old_control; 662 int changed; 663 664 spin_lock_irq(&chip->reg_lock); 665 old_control = chip->reg_control; 666 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) 667 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); 668 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 669 changed = chip->reg_control != old_control; 670 spin_unlock_irq(&chip->reg_lock); 671 return changed; 672 } 673 674 static struct snd_kcontrol_new snd_bt87x_capture_source = { 675 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 676 .name = "Capture Source", 677 .info = snd_bt87x_capture_source_info, 678 .get = snd_bt87x_capture_source_get, 679 .put = snd_bt87x_capture_source_put, 680 }; 681 682 static int snd_bt87x_free(struct snd_bt87x *chip) 683 { 684 if (chip->mmio) { 685 snd_bt87x_stop(chip); 686 if (chip->irq >= 0) 687 synchronize_irq(chip->irq); 688 689 iounmap(chip->mmio); 690 } 691 if (chip->irq >= 0) 692 free_irq(chip->irq, chip); 693 pci_release_regions(chip->pci); 694 pci_disable_device(chip->pci); 695 kfree(chip); 696 return 0; 697 } 698 699 static int snd_bt87x_dev_free(struct snd_device *device) 700 { 701 struct snd_bt87x *chip = device->device_data; 702 return snd_bt87x_free(chip); 703 } 704 705 static int __devinit snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) 706 { 707 int err; 708 struct snd_pcm *pcm; 709 710 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); 711 if (err < 0) 712 return err; 713 pcm->private_data = chip; 714 strcpy(pcm->name, name); 715 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops); 716 return snd_pcm_lib_preallocate_pages_for_all(pcm, 717 SNDRV_DMA_TYPE_DEV_SG, 718 snd_dma_pci_data(chip->pci), 719 128 * 1024, 720 ALIGN(255 * 4092, 1024)); 721 } 722 723 static int __devinit snd_bt87x_create(struct snd_card *card, 724 struct pci_dev *pci, 725 struct snd_bt87x **rchip) 726 { 727 struct snd_bt87x *chip; 728 int err; 729 static struct snd_device_ops ops = { 730 .dev_free = snd_bt87x_dev_free 731 }; 732 733 *rchip = NULL; 734 735 err = pci_enable_device(pci); 736 if (err < 0) 737 return err; 738 739 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 740 if (!chip) { 741 pci_disable_device(pci); 742 return -ENOMEM; 743 } 744 chip->card = card; 745 chip->pci = pci; 746 chip->irq = -1; 747 spin_lock_init(&chip->reg_lock); 748 749 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) { 750 kfree(chip); 751 pci_disable_device(pci); 752 return err; 753 } 754 chip->mmio = ioremap_nocache(pci_resource_start(pci, 0), 755 pci_resource_len(pci, 0)); 756 if (!chip->mmio) { 757 snd_printk(KERN_ERR "cannot remap io memory\n"); 758 err = -ENOMEM; 759 goto fail; 760 } 761 762 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | 763 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); 764 chip->interrupt_mask = MY_INTERRUPTS; 765 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 766 snd_bt87x_writel(chip, REG_INT_MASK, 0); 767 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 768 769 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, 770 "Bt87x audio", chip); 771 if (err < 0) { 772 snd_printk(KERN_ERR "cannot grab irq %d\n", pci->irq); 773 goto fail; 774 } 775 chip->irq = pci->irq; 776 pci_set_master(pci); 777 synchronize_irq(chip->irq); 778 779 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 780 if (err < 0) 781 goto fail; 782 783 snd_card_set_dev(card, &pci->dev); 784 *rchip = chip; 785 return 0; 786 787 fail: 788 snd_bt87x_free(chip); 789 return err; 790 } 791 792 #define BT_DEVICE(chip, subvend, subdev, id) \ 793 { .vendor = PCI_VENDOR_ID_BROOKTREE, \ 794 .device = chip, \ 795 .subvendor = subvend, .subdevice = subdev, \ 796 .driver_data = SND_BT87X_BOARD_ ## id } 797 /* driver_data is the card id for that device */ 798 799 static struct pci_device_id snd_bt87x_ids[] = { 800 /* Hauppauge WinTV series */ 801 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), 802 /* Hauppauge WinTV series */ 803 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), 804 /* Viewcast Osprey 200 */ 805 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), 806 /* Viewcast Osprey 440 (rate is configurable via gpio) */ 807 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), 808 /* ATI TV-Wonder */ 809 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), 810 /* Leadtek Winfast tv 2000xp delux */ 811 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), 812 /* Voodoo TV 200 */ 813 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), 814 /* AVerMedia Studio No. 103, 203, ...? */ 815 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), 816 /* Prolink PixelView PV-M4900 */ 817 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), 818 /* Pinnacle Studio PCTV rave */ 819 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), 820 { } 821 }; 822 MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); 823 824 /* cards known not to have audio 825 * (DVB cards use the audio function to transfer MPEG data) */ 826 static struct { 827 unsigned short subvendor, subdevice; 828 } blacklist[] __devinitdata = { 829 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ 830 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ 831 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ 832 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ 833 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ 834 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ 835 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ 836 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ 837 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ 838 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ 839 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ 840 }; 841 842 static struct pci_driver driver; 843 844 /* return the id of the card, or a negative value if it's blacklisted */ 845 static int __devinit snd_bt87x_detect_card(struct pci_dev *pci) 846 { 847 int i; 848 const struct pci_device_id *supported; 849 850 supported = pci_match_id(snd_bt87x_ids, pci); 851 if (supported && supported->driver_data > 0) 852 return supported->driver_data; 853 854 for (i = 0; i < ARRAY_SIZE(blacklist); ++i) 855 if (blacklist[i].subvendor == pci->subsystem_vendor && 856 blacklist[i].subdevice == pci->subsystem_device) { 857 snd_printdd(KERN_INFO "card %#04x-%#04x:%#04x has no audio\n", 858 pci->device, pci->subsystem_vendor, pci->subsystem_device); 859 return -EBUSY; 860 } 861 862 snd_printk(KERN_INFO "unknown card %#04x-%#04x:%#04x\n", 863 pci->device, pci->subsystem_vendor, pci->subsystem_device); 864 snd_printk(KERN_DEBUG "please mail id, board name, and, " 865 "if it works, the correct digital_rate option to " 866 "<alsa-devel@alsa-project.org>\n"); 867 return SND_BT87X_BOARD_UNKNOWN; 868 } 869 870 static int __devinit snd_bt87x_probe(struct pci_dev *pci, 871 const struct pci_device_id *pci_id) 872 { 873 static int dev; 874 struct snd_card *card; 875 struct snd_bt87x *chip; 876 int err; 877 enum snd_bt87x_boardid boardid; 878 879 if (!pci_id->driver_data) { 880 err = snd_bt87x_detect_card(pci); 881 if (err < 0) 882 return -ENODEV; 883 boardid = err; 884 } else 885 boardid = pci_id->driver_data; 886 887 if (dev >= SNDRV_CARDS) 888 return -ENODEV; 889 if (!enable[dev]) { 890 ++dev; 891 return -ENOENT; 892 } 893 894 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 895 if (!card) 896 return -ENOMEM; 897 898 err = snd_bt87x_create(card, pci, &chip); 899 if (err < 0) 900 goto _error; 901 902 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); 903 904 if (!chip->board.no_digital) { 905 if (digital_rate[dev] > 0) 906 chip->board.dig_rate = digital_rate[dev]; 907 908 chip->reg_control |= chip->board.digital_fmt; 909 910 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); 911 if (err < 0) 912 goto _error; 913 } 914 if (!chip->board.no_analog) { 915 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); 916 if (err < 0) 917 goto _error; 918 err = snd_ctl_add(card, snd_ctl_new1( 919 &snd_bt87x_capture_volume, chip)); 920 if (err < 0) 921 goto _error; 922 err = snd_ctl_add(card, snd_ctl_new1( 923 &snd_bt87x_capture_boost, chip)); 924 if (err < 0) 925 goto _error; 926 err = snd_ctl_add(card, snd_ctl_new1( 927 &snd_bt87x_capture_source, chip)); 928 if (err < 0) 929 goto _error; 930 } 931 snd_printk(KERN_INFO "bt87x%d: Using board %d, %sanalog, %sdigital " 932 "(rate %d Hz)\n", dev, boardid, 933 chip->board.no_analog ? "no " : "", 934 chip->board.no_digital ? "no " : "", chip->board.dig_rate); 935 936 strcpy(card->driver, "Bt87x"); 937 sprintf(card->shortname, "Brooktree Bt%x", pci->device); 938 sprintf(card->longname, "%s at %#llx, irq %i", 939 card->shortname, (unsigned long long)pci_resource_start(pci, 0), 940 chip->irq); 941 strcpy(card->mixername, "Bt87x"); 942 943 err = snd_card_register(card); 944 if (err < 0) 945 goto _error; 946 947 pci_set_drvdata(pci, card); 948 ++dev; 949 return 0; 950 951 _error: 952 snd_card_free(card); 953 return err; 954 } 955 956 static void __devexit snd_bt87x_remove(struct pci_dev *pci) 957 { 958 snd_card_free(pci_get_drvdata(pci)); 959 pci_set_drvdata(pci, NULL); 960 } 961 962 /* default entries for all Bt87x cards - it's not exported */ 963 /* driver_data is set to 0 to call detection */ 964 static struct pci_device_id snd_bt87x_default_ids[] __devinitdata = { 965 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 966 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 967 { } 968 }; 969 970 static struct pci_driver driver = { 971 .name = "Bt87x", 972 .id_table = snd_bt87x_ids, 973 .probe = snd_bt87x_probe, 974 .remove = __devexit_p(snd_bt87x_remove), 975 }; 976 977 static int __init alsa_card_bt87x_init(void) 978 { 979 if (load_all) 980 driver.id_table = snd_bt87x_default_ids; 981 return pci_register_driver(&driver); 982 } 983 984 static void __exit alsa_card_bt87x_exit(void) 985 { 986 pci_unregister_driver(&driver); 987 } 988 989 module_init(alsa_card_bt87x_init) 990 module_exit(alsa_card_bt87x_exit) 991