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 37MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); 38MODULE_DESCRIPTION("Brooktree Bt87x audio driver"); 39MODULE_LICENSE("GPL"); 40MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878}," 41 "{Brooktree,Bt879}}"); 42 43static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */ 44static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 45static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 46static int digital_rate[SNDRV_CARDS]; /* digital input rate */ 47static int load_all; /* allow to load the non-whitelisted cards */ 48 49module_param_array(index, int, NULL, 0444); 50MODULE_PARM_DESC(index, "Index value for Bt87x soundcard"); 51module_param_array(id, charp, NULL, 0444); 52MODULE_PARM_DESC(id, "ID string for Bt87x soundcard"); 53module_param_array(enable, bool, NULL, 0444); 54MODULE_PARM_DESC(enable, "Enable Bt87x soundcard"); 55module_param_array(digital_rate, int, NULL, 0444); 56MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard"); 57module_param(load_all, bool, 0444); 58MODULE_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 */ 150enum 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 */ 160struct 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 167static __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 191struct 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 215enum { DEVICE_DIGITAL, DEVICE_ANALOG }; 216 217static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg) 218{ 219 return readl(chip->mmio + reg); 220} 221 222static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value) 223{ 224 writel(value, chip->mmio + reg); 225} 226 227static 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 278static 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 286static 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 313static 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 348static 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 365static 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 384static 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 394static 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 413static 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 442static 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 457static 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 472static 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 481static 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 498static 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 512static 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 523static 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 537static 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 545static 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 557static 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 567static 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 576static 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 593static 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 603static 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 612static 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 629static 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 637static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, 638 struct snd_ctl_elem_info *info) 639{ 640 static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"}; 641 642 info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 643 info->count = 1; 644 info->value.enumerated.items = 3; 645 if (info->value.enumerated.item > 2) 646 info->value.enumerated.item = 2; 647 strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]); 648 return 0; 649} 650 651static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, 652 struct snd_ctl_elem_value *value) 653{ 654 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 655 656 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; 657 return 0; 658} 659 660static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, 661 struct snd_ctl_elem_value *value) 662{ 663 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 664 u32 old_control; 665 int changed; 666 667 spin_lock_irq(&chip->reg_lock); 668 old_control = chip->reg_control; 669 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) 670 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); 671 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 672 changed = chip->reg_control != old_control; 673 spin_unlock_irq(&chip->reg_lock); 674 return changed; 675} 676 677static struct snd_kcontrol_new snd_bt87x_capture_source = { 678 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 679 .name = "Capture Source", 680 .info = snd_bt87x_capture_source_info, 681 .get = snd_bt87x_capture_source_get, 682 .put = snd_bt87x_capture_source_put, 683}; 684 685static int snd_bt87x_free(struct snd_bt87x *chip) 686{ 687 if (chip->mmio) 688 snd_bt87x_stop(chip); 689 if (chip->irq >= 0) 690 free_irq(chip->irq, chip); 691 if (chip->mmio) 692 iounmap(chip->mmio); 693 pci_release_regions(chip->pci); 694 pci_disable_device(chip->pci); 695 kfree(chip); 696 return 0; 697} 698 699static 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 705static 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 723static 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 = pci_ioremap_bar(pci, 0); 755 if (!chip->mmio) { 756 snd_printk(KERN_ERR "cannot remap io memory\n"); 757 err = -ENOMEM; 758 goto fail; 759 } 760 761 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | 762 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); 763 chip->interrupt_mask = MY_INTERRUPTS; 764 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 765 snd_bt87x_writel(chip, REG_INT_MASK, 0); 766 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 767 768 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, 769 "Bt87x audio", chip); 770 if (err < 0) { 771 snd_printk(KERN_ERR "cannot grab irq %d\n", pci->irq); 772 goto fail; 773 } 774 chip->irq = pci->irq; 775 pci_set_master(pci); 776 synchronize_irq(chip->irq); 777 778 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 779 if (err < 0) 780 goto fail; 781 782 snd_card_set_dev(card, &pci->dev); 783 *rchip = chip; 784 return 0; 785 786fail: 787 snd_bt87x_free(chip); 788 return err; 789} 790 791#define BT_DEVICE(chip, subvend, subdev, id) \ 792 { .vendor = PCI_VENDOR_ID_BROOKTREE, \ 793 .device = chip, \ 794 .subvendor = subvend, .subdevice = subdev, \ 795 .driver_data = SND_BT87X_BOARD_ ## id } 796/* driver_data is the card id for that device */ 797 798static DEFINE_PCI_DEVICE_TABLE(snd_bt87x_ids) = { 799 /* Hauppauge WinTV series */ 800 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), 801 /* Hauppauge WinTV series */ 802 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), 803 /* Viewcast Osprey 200 */ 804 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), 805 /* Viewcast Osprey 440 (rate is configurable via gpio) */ 806 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), 807 /* ATI TV-Wonder */ 808 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), 809 /* Leadtek Winfast tv 2000xp delux */ 810 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), 811 /* Pinnacle PCTV */ 812 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC), 813 /* Voodoo TV 200 */ 814 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), 815 /* Askey Computer Corp. MagicTView'99 */ 816 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC), 817 /* AVerMedia Studio No. 103, 203, ...? */ 818 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), 819 /* Prolink PixelView PV-M4900 */ 820 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), 821 /* Pinnacle Studio PCTV rave */ 822 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), 823 { } 824}; 825MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); 826 827/* cards known not to have audio 828 * (DVB cards use the audio function to transfer MPEG data) */ 829static struct { 830 unsigned short subvendor, subdevice; 831} blacklist[] __devinitdata = { 832 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ 833 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ 834 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ 835 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ 836 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ 837 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ 838 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ 839 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ 840 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ 841 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ 842 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ 843}; 844 845static struct pci_driver driver; 846 847/* return the id of the card, or a negative value if it's blacklisted */ 848static int __devinit snd_bt87x_detect_card(struct pci_dev *pci) 849{ 850 int i; 851 const struct pci_device_id *supported; 852 853 supported = pci_match_id(snd_bt87x_ids, pci); 854 if (supported && supported->driver_data > 0) 855 return supported->driver_data; 856 857 for (i = 0; i < ARRAY_SIZE(blacklist); ++i) 858 if (blacklist[i].subvendor == pci->subsystem_vendor && 859 blacklist[i].subdevice == pci->subsystem_device) { 860 snd_printdd(KERN_INFO "card %#04x-%#04x:%#04x has no audio\n", 861 pci->device, pci->subsystem_vendor, pci->subsystem_device); 862 return -EBUSY; 863 } 864 865 snd_printk(KERN_INFO "unknown card %#04x-%#04x:%#04x\n", 866 pci->device, pci->subsystem_vendor, pci->subsystem_device); 867 snd_printk(KERN_DEBUG "please mail id, board name, and, " 868 "if it works, the correct digital_rate option to " 869 "<alsa-devel@alsa-project.org>\n"); 870 return SND_BT87X_BOARD_UNKNOWN; 871} 872 873static int __devinit snd_bt87x_probe(struct pci_dev *pci, 874 const struct pci_device_id *pci_id) 875{ 876 static int dev; 877 struct snd_card *card; 878 struct snd_bt87x *chip; 879 int err; 880 enum snd_bt87x_boardid boardid; 881 882 if (!pci_id->driver_data) { 883 err = snd_bt87x_detect_card(pci); 884 if (err < 0) 885 return -ENODEV; 886 boardid = err; 887 } else 888 boardid = pci_id->driver_data; 889 890 if (dev >= SNDRV_CARDS) 891 return -ENODEV; 892 if (!enable[dev]) { 893 ++dev; 894 return -ENOENT; 895 } 896 897 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); 898 if (err < 0) 899 return err; 900 901 err = snd_bt87x_create(card, pci, &chip); 902 if (err < 0) 903 goto _error; 904 905 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); 906 907 if (!chip->board.no_digital) { 908 if (digital_rate[dev] > 0) 909 chip->board.dig_rate = digital_rate[dev]; 910 911 chip->reg_control |= chip->board.digital_fmt; 912 913 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); 914 if (err < 0) 915 goto _error; 916 } 917 if (!chip->board.no_analog) { 918 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); 919 if (err < 0) 920 goto _error; 921 err = snd_ctl_add(card, snd_ctl_new1( 922 &snd_bt87x_capture_volume, chip)); 923 if (err < 0) 924 goto _error; 925 err = snd_ctl_add(card, snd_ctl_new1( 926 &snd_bt87x_capture_boost, chip)); 927 if (err < 0) 928 goto _error; 929 err = snd_ctl_add(card, snd_ctl_new1( 930 &snd_bt87x_capture_source, chip)); 931 if (err < 0) 932 goto _error; 933 } 934 snd_printk(KERN_INFO "bt87x%d: Using board %d, %sanalog, %sdigital " 935 "(rate %d Hz)\n", dev, boardid, 936 chip->board.no_analog ? "no " : "", 937 chip->board.no_digital ? "no " : "", chip->board.dig_rate); 938 939 strcpy(card->driver, "Bt87x"); 940 sprintf(card->shortname, "Brooktree Bt%x", pci->device); 941 sprintf(card->longname, "%s at %#llx, irq %i", 942 card->shortname, (unsigned long long)pci_resource_start(pci, 0), 943 chip->irq); 944 strcpy(card->mixername, "Bt87x"); 945 946 err = snd_card_register(card); 947 if (err < 0) 948 goto _error; 949 950 pci_set_drvdata(pci, card); 951 ++dev; 952 return 0; 953 954_error: 955 snd_card_free(card); 956 return err; 957} 958 959static void __devexit snd_bt87x_remove(struct pci_dev *pci) 960{ 961 snd_card_free(pci_get_drvdata(pci)); 962 pci_set_drvdata(pci, NULL); 963} 964 965/* default entries for all Bt87x cards - it's not exported */ 966/* driver_data is set to 0 to call detection */ 967static DEFINE_PCI_DEVICE_TABLE(snd_bt87x_default_ids) = { 968 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 969 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), 970 { } 971}; 972 973static struct pci_driver driver = { 974 .name = "Bt87x", 975 .id_table = snd_bt87x_ids, 976 .probe = snd_bt87x_probe, 977 .remove = __devexit_p(snd_bt87x_remove), 978}; 979 980static int __init alsa_card_bt87x_init(void) 981{ 982 if (load_all) 983 driver.id_table = snd_bt87x_default_ids; 984 return pci_register_driver(&driver); 985} 986 987static void __exit alsa_card_bt87x_exit(void) 988{ 989 pci_unregister_driver(&driver); 990} 991 992module_init(alsa_card_bt87x_init) 993module_exit(alsa_card_bt87x_exit) 994