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 <sound/driver.h> 25#include <linux/init.h> 26#include <linux/interrupt.h> 27#include <linux/pci.h> 28#include <linux/slab.h> 29#include <linux/moduleparam.h> 30#include <linux/bitops.h> 31#include <asm/io.h> 32#include <sound/core.h> 33#include <sound/pcm.h> 34#include <sound/pcm_params.h> 35#include <sound/control.h> 36#include <sound/initval.h> 37 38MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); 39MODULE_DESCRIPTION("Brooktree Bt87x audio driver"); 40MODULE_LICENSE("GPL"); 41MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878}," 42 "{Brooktree,Bt879}}"); 43 44static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */ 45static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 46static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 47static int digital_rate[SNDRV_CARDS]; /* digital input rate */ 48static int load_all; /* allow to load the non-whitelisted cards */ 49 50module_param_array(index, int, NULL, 0444); 51MODULE_PARM_DESC(index, "Index value for Bt87x soundcard"); 52module_param_array(id, charp, NULL, 0444); 53MODULE_PARM_DESC(id, "ID string for Bt87x soundcard"); 54module_param_array(enable, bool, NULL, 0444); 55MODULE_PARM_DESC(enable, "Enable Bt87x soundcard"); 56module_param_array(digital_rate, int, NULL, 0444); 57MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard"); 58module_param(load_all, bool, 0444); 59MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards"); 60 61 62/* register offsets */ 63#define REG_INT_STAT 0x100 /* interrupt status */ 64#define REG_INT_MASK 0x104 /* interrupt mask */ 65#define REG_GPIO_DMA_CTL 0x10c /* audio control */ 66#define REG_PACKET_LEN 0x110 /* audio packet lengths */ 67#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */ 68#define REG_RISC_COUNT 0x120 /* RISC program counter */ 69 70/* interrupt bits */ 71#define INT_OFLOW (1 << 3) /* audio A/D overflow */ 72#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */ 73#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */ 74#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */ 75#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */ 76#define INT_PPERR (1 << 15) /* PCI parity error */ 77#define INT_RIPERR (1 << 16) /* RISC instruction parity error */ 78#define INT_PABORT (1 << 17) /* PCI master or target abort */ 79#define INT_OCERR (1 << 18) /* invalid opcode */ 80#define INT_SCERR (1 << 19) /* sync counter overflow */ 81#define INT_RISC_EN (1 << 27) /* DMA controller running */ 82#define INT_RISCS_SHIFT 28 /* RISC status bits */ 83 84/* audio control bits */ 85#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */ 86#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */ 87#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */ 88#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */ 89#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */ 90#define CTL_ACAP_EN (1 << 4) /* enable audio capture */ 91#define CTL_DA_APP (1 << 5) /* GPIO input */ 92#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */ 93#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */ 94#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */ 95#define CTL_DA_SDR_MASK (0xf<< 8) 96#define CTL_DA_LMT (1 << 12) /* limit audio data values */ 97#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */ 98#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */ 99#define CTL_DA_DPM (1 << 15) /* data packet mode */ 100#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */ 101#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */ 102#define CTL_DA_LRI (1 << 22) /* left/right indication */ 103#define CTL_DA_SCE (1 << 23) /* sample clock edge */ 104#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */ 105#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */ 106#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */ 107#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */ 108#define CTL_A_SEL_SHIFT 24 109#define CTL_A_SEL_MASK (3 << 24) 110#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */ 111#define CTL_A_G2X (1 << 27) /* audio gain boost */ 112#define CTL_A_GAIN_SHIFT 28 /* audio input gain */ 113#define CTL_A_GAIN_MASK (0xf<<28) 114 115/* RISC instruction opcodes */ 116#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */ 117#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */ 118#define RISC_SKIP (0x2 << 28) /* skip FIFO data */ 119#define RISC_JUMP (0x7 << 28) /* jump to address */ 120#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */ 121 122/* RISC instruction bits */ 123#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */ 124#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */ 125#define RISC_SET_STATUS_SHIFT 16 /* set status bits */ 126#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */ 127#define RISC_IRQ ( 1 << 24) /* interrupt */ 128#define RISC_EOL ( 1 << 26) /* end of line */ 129#define RISC_SOL ( 1 << 27) /* start of line */ 130 131/* SYNC status bits values */ 132#define RISC_SYNC_FM1 0x6 133#define RISC_SYNC_VRO 0xc 134 135#define ANALOG_CLOCK 1792000 136#ifdef CONFIG_SND_BT87X_OVERCLOCK 137#define CLOCK_DIV_MIN 1 138#else 139#define CLOCK_DIV_MIN 4 140#endif 141#define CLOCK_DIV_MAX 15 142 143#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \ 144 INT_RIPERR | INT_PABORT | INT_OCERR) 145#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS) 146 147/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */ 148#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8) 149 150struct snd_bt87x { 151 struct snd_card *card; 152 struct pci_dev *pci; 153 154 void __iomem *mmio; 155 int irq; 156 157 int dig_rate; 158 159 spinlock_t reg_lock; 160 long opened; 161 struct snd_pcm_substream *substream; 162 163 struct snd_dma_buffer dma_risc; 164 unsigned int line_bytes; 165 unsigned int lines; 166 167 u32 reg_control; 168 u32 interrupt_mask; 169 170 int current_line; 171 172 int pci_parity_errors; 173}; 174 175enum { DEVICE_DIGITAL, DEVICE_ANALOG }; 176 177static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg) 178{ 179 return readl(chip->mmio + reg); 180} 181 182static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value) 183{ 184 writel(value, chip->mmio + reg); 185} 186 187static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream, 188 unsigned int periods, unsigned int period_bytes) 189{ 190 struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream); 191 unsigned int i, offset; 192 u32 *risc; 193 194 if (chip->dma_risc.area == NULL) { 195 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 196 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0) 197 return -ENOMEM; 198 } 199 risc = (u32 *)chip->dma_risc.area; 200 offset = 0; 201 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1); 202 *risc++ = cpu_to_le32(0); 203 for (i = 0; i < periods; ++i) { 204 u32 rest; 205 206 rest = period_bytes; 207 do { 208 u32 cmd, len; 209 210 len = PAGE_SIZE - (offset % PAGE_SIZE); 211 if (len > rest) 212 len = rest; 213 cmd = RISC_WRITE | len; 214 if (rest == period_bytes) { 215 u32 block = i * 16 / periods; 216 cmd |= RISC_SOL; 217 cmd |= block << RISC_SET_STATUS_SHIFT; 218 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT; 219 } 220 if (len == rest) 221 cmd |= RISC_EOL | RISC_IRQ; 222 *risc++ = cpu_to_le32(cmd); 223 *risc++ = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, offset)); 224 offset += len; 225 rest -= len; 226 } while (rest > 0); 227 } 228 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO); 229 *risc++ = cpu_to_le32(0); 230 *risc++ = cpu_to_le32(RISC_JUMP); 231 *risc++ = cpu_to_le32(chip->dma_risc.addr); 232 chip->line_bytes = period_bytes; 233 chip->lines = periods; 234 return 0; 235} 236 237static void snd_bt87x_free_risc(struct snd_bt87x *chip) 238{ 239 if (chip->dma_risc.area) { 240 snd_dma_free_pages(&chip->dma_risc); 241 chip->dma_risc.area = NULL; 242 } 243} 244 245static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status) 246{ 247 u16 pci_status; 248 249 pci_read_config_word(chip->pci, PCI_STATUS, &pci_status); 250 pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT | 251 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT | 252 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY; 253 pci_write_config_word(chip->pci, PCI_STATUS, pci_status); 254 if (pci_status != PCI_STATUS_DETECTED_PARITY) 255 snd_printk(KERN_ERR "Aieee - PCI error! status %#08x, PCI status %#04x\n", 256 status & ERROR_INTERRUPTS, pci_status); 257 else { 258 snd_printk(KERN_ERR "Aieee - PCI parity error detected!\n"); 259 /* error 'handling' similar to aic7xxx_pci.c: */ 260 chip->pci_parity_errors++; 261 if (chip->pci_parity_errors > 20) { 262 snd_printk(KERN_ERR "Too many PCI parity errors observed.\n"); 263 snd_printk(KERN_ERR "Some device on this bus is generating bad parity.\n"); 264 snd_printk(KERN_ERR "This is an error *observed by*, not *generated by*, this card.\n"); 265 snd_printk(KERN_ERR "PCI parity error checking has been disabled.\n"); 266 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR); 267 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 268 } 269 } 270} 271 272static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id) 273{ 274 struct snd_bt87x *chip = dev_id; 275 unsigned int status, irq_status; 276 277 status = snd_bt87x_readl(chip, REG_INT_STAT); 278 irq_status = status & chip->interrupt_mask; 279 if (!irq_status) 280 return IRQ_NONE; 281 snd_bt87x_writel(chip, REG_INT_STAT, irq_status); 282 283 if (irq_status & ERROR_INTERRUPTS) { 284 if (irq_status & (INT_FBUS | INT_FTRGT)) 285 snd_printk(KERN_WARNING "FIFO overrun, status %#08x\n", status); 286 if (irq_status & INT_OCERR) 287 snd_printk(KERN_ERR "internal RISC error, status %#08x\n", status); 288 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT)) 289 snd_bt87x_pci_error(chip, irq_status); 290 } 291 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) { 292 int current_block, irq_block; 293 294 /* assume that exactly one line has been recorded */ 295 chip->current_line = (chip->current_line + 1) % chip->lines; 296 /* but check if some interrupts have been skipped */ 297 current_block = chip->current_line * 16 / chip->lines; 298 irq_block = status >> INT_RISCS_SHIFT; 299 if (current_block != irq_block) 300 chip->current_line = (irq_block * chip->lines + 15) / 16; 301 302 snd_pcm_period_elapsed(chip->substream); 303 } 304 return IRQ_HANDLED; 305} 306 307static struct snd_pcm_hardware snd_bt87x_digital_hw = { 308 .info = SNDRV_PCM_INFO_MMAP | 309 SNDRV_PCM_INFO_INTERLEAVED | 310 SNDRV_PCM_INFO_BLOCK_TRANSFER | 311 SNDRV_PCM_INFO_MMAP_VALID, 312 .formats = SNDRV_PCM_FMTBIT_S16_LE, 313 .rates = 0, /* set at runtime */ 314 .channels_min = 2, 315 .channels_max = 2, 316 .buffer_bytes_max = 255 * 4092, 317 .period_bytes_min = 32, 318 .period_bytes_max = 4092, 319 .periods_min = 2, 320 .periods_max = 255, 321}; 322 323static struct snd_pcm_hardware snd_bt87x_analog_hw = { 324 .info = SNDRV_PCM_INFO_MMAP | 325 SNDRV_PCM_INFO_INTERLEAVED | 326 SNDRV_PCM_INFO_BLOCK_TRANSFER | 327 SNDRV_PCM_INFO_MMAP_VALID, 328 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, 329 .rates = SNDRV_PCM_RATE_KNOT, 330 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, 331 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, 332 .channels_min = 1, 333 .channels_max = 1, 334 .buffer_bytes_max = 255 * 4092, 335 .period_bytes_min = 32, 336 .period_bytes_max = 4092, 337 .periods_min = 2, 338 .periods_max = 255, 339}; 340 341static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 342{ 343 static struct { 344 int rate; 345 unsigned int bit; 346 } ratebits[] = { 347 {8000, SNDRV_PCM_RATE_8000}, 348 {11025, SNDRV_PCM_RATE_11025}, 349 {16000, SNDRV_PCM_RATE_16000}, 350 {22050, SNDRV_PCM_RATE_22050}, 351 {32000, SNDRV_PCM_RATE_32000}, 352 {44100, SNDRV_PCM_RATE_44100}, 353 {48000, SNDRV_PCM_RATE_48000} 354 }; 355 int i; 356 357 chip->reg_control |= CTL_DA_IOM_DA; 358 runtime->hw = snd_bt87x_digital_hw; 359 runtime->hw.rates = SNDRV_PCM_RATE_KNOT; 360 for (i = 0; i < ARRAY_SIZE(ratebits); ++i) 361 if (chip->dig_rate == ratebits[i].rate) { 362 runtime->hw.rates = ratebits[i].bit; 363 break; 364 } 365 runtime->hw.rate_min = chip->dig_rate; 366 runtime->hw.rate_max = chip->dig_rate; 367 return 0; 368} 369 370static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) 371{ 372 static struct snd_ratnum analog_clock = { 373 .num = ANALOG_CLOCK, 374 .den_min = CLOCK_DIV_MIN, 375 .den_max = CLOCK_DIV_MAX, 376 .den_step = 1 377 }; 378 static struct snd_pcm_hw_constraint_ratnums constraint_rates = { 379 .nrats = 1, 380 .rats = &analog_clock 381 }; 382 383 chip->reg_control &= ~CTL_DA_IOM_DA; 384 runtime->hw = snd_bt87x_analog_hw; 385 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 386 &constraint_rates); 387} 388 389static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) 390{ 391 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 392 struct snd_pcm_runtime *runtime = substream->runtime; 393 int err; 394 395 if (test_and_set_bit(0, &chip->opened)) 396 return -EBUSY; 397 398 if (substream->pcm->device == DEVICE_DIGITAL) 399 err = snd_bt87x_set_digital_hw(chip, runtime); 400 else 401 err = snd_bt87x_set_analog_hw(chip, runtime); 402 if (err < 0) 403 goto _error; 404 405 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 406 if (err < 0) 407 goto _error; 408 409 chip->substream = substream; 410 return 0; 411 412_error: 413 clear_bit(0, &chip->opened); 414 smp_mb__after_clear_bit(); 415 return err; 416} 417 418static int snd_bt87x_close(struct snd_pcm_substream *substream) 419{ 420 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 421 422 chip->substream = NULL; 423 clear_bit(0, &chip->opened); 424 smp_mb__after_clear_bit(); 425 return 0; 426} 427 428static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, 429 struct snd_pcm_hw_params *hw_params) 430{ 431 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 432 int err; 433 434 err = snd_pcm_lib_malloc_pages(substream, 435 params_buffer_bytes(hw_params)); 436 if (err < 0) 437 return err; 438 return snd_bt87x_create_risc(chip, substream, 439 params_periods(hw_params), 440 params_period_bytes(hw_params)); 441} 442 443static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) 444{ 445 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 446 447 snd_bt87x_free_risc(chip); 448 snd_pcm_lib_free_pages(substream); 449 return 0; 450} 451 452static int snd_bt87x_prepare(struct snd_pcm_substream *substream) 453{ 454 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 455 struct snd_pcm_runtime *runtime = substream->runtime; 456 int decimation; 457 458 spin_lock_irq(&chip->reg_lock); 459 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); 460 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate; 461 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT; 462 if (runtime->format == SNDRV_PCM_FORMAT_S8) 463 chip->reg_control |= CTL_DA_SBR; 464 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 465 spin_unlock_irq(&chip->reg_lock); 466 return 0; 467} 468 469static int snd_bt87x_start(struct snd_bt87x *chip) 470{ 471 spin_lock(&chip->reg_lock); 472 chip->current_line = 0; 473 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN; 474 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr); 475 snd_bt87x_writel(chip, REG_PACKET_LEN, 476 chip->line_bytes | (chip->lines << 16)); 477 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); 478 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 479 spin_unlock(&chip->reg_lock); 480 return 0; 481} 482 483static int snd_bt87x_stop(struct snd_bt87x *chip) 484{ 485 spin_lock(&chip->reg_lock); 486 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN); 487 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 488 snd_bt87x_writel(chip, REG_INT_MASK, 0); 489 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 490 spin_unlock(&chip->reg_lock); 491 return 0; 492} 493 494static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) 495{ 496 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 497 498 switch (cmd) { 499 case SNDRV_PCM_TRIGGER_START: 500 return snd_bt87x_start(chip); 501 case SNDRV_PCM_TRIGGER_STOP: 502 return snd_bt87x_stop(chip); 503 default: 504 return -EINVAL; 505 } 506} 507 508static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) 509{ 510 struct snd_bt87x *chip = snd_pcm_substream_chip(substream); 511 struct snd_pcm_runtime *runtime = substream->runtime; 512 513 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); 514} 515 516static struct snd_pcm_ops snd_bt87x_pcm_ops = { 517 .open = snd_bt87x_pcm_open, 518 .close = snd_bt87x_close, 519 .ioctl = snd_pcm_lib_ioctl, 520 .hw_params = snd_bt87x_hw_params, 521 .hw_free = snd_bt87x_hw_free, 522 .prepare = snd_bt87x_prepare, 523 .trigger = snd_bt87x_trigger, 524 .pointer = snd_bt87x_pointer, 525 .page = snd_pcm_sgbuf_ops_page, 526}; 527 528static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, 529 struct snd_ctl_elem_info *info) 530{ 531 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 532 info->count = 1; 533 info->value.integer.min = 0; 534 info->value.integer.max = 15; 535 return 0; 536} 537 538static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, 539 struct snd_ctl_elem_value *value) 540{ 541 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 542 543 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; 544 return 0; 545} 546 547static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, 548 struct snd_ctl_elem_value *value) 549{ 550 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 551 u32 old_control; 552 int changed; 553 554 spin_lock_irq(&chip->reg_lock); 555 old_control = chip->reg_control; 556 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) 557 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); 558 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 559 changed = old_control != chip->reg_control; 560 spin_unlock_irq(&chip->reg_lock); 561 return changed; 562} 563 564static struct snd_kcontrol_new snd_bt87x_capture_volume = { 565 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 566 .name = "Capture Volume", 567 .info = snd_bt87x_capture_volume_info, 568 .get = snd_bt87x_capture_volume_get, 569 .put = snd_bt87x_capture_volume_put, 570}; 571 572static int snd_bt87x_capture_boost_info(struct snd_kcontrol *kcontrol, 573 struct snd_ctl_elem_info *info) 574{ 575 info->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 576 info->count = 1; 577 info->value.integer.min = 0; 578 info->value.integer.max = 1; 579 return 0; 580} 581 582static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, 583 struct snd_ctl_elem_value *value) 584{ 585 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 586 587 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); 588 return 0; 589} 590 591static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, 592 struct snd_ctl_elem_value *value) 593{ 594 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 595 u32 old_control; 596 int changed; 597 598 spin_lock_irq(&chip->reg_lock); 599 old_control = chip->reg_control; 600 chip->reg_control = (chip->reg_control & ~CTL_A_G2X) 601 | (value->value.integer.value[0] ? CTL_A_G2X : 0); 602 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 603 changed = chip->reg_control != old_control; 604 spin_unlock_irq(&chip->reg_lock); 605 return changed; 606} 607 608static struct snd_kcontrol_new snd_bt87x_capture_boost = { 609 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 610 .name = "Capture Boost", 611 .info = snd_bt87x_capture_boost_info, 612 .get = snd_bt87x_capture_boost_get, 613 .put = snd_bt87x_capture_boost_put, 614}; 615 616static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, 617 struct snd_ctl_elem_info *info) 618{ 619 static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"}; 620 621 info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 622 info->count = 1; 623 info->value.enumerated.items = 3; 624 if (info->value.enumerated.item > 2) 625 info->value.enumerated.item = 2; 626 strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]); 627 return 0; 628} 629 630static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, 631 struct snd_ctl_elem_value *value) 632{ 633 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 634 635 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; 636 return 0; 637} 638 639static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, 640 struct snd_ctl_elem_value *value) 641{ 642 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); 643 u32 old_control; 644 int changed; 645 646 spin_lock_irq(&chip->reg_lock); 647 old_control = chip->reg_control; 648 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) 649 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); 650 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 651 changed = chip->reg_control != old_control; 652 spin_unlock_irq(&chip->reg_lock); 653 return changed; 654} 655 656static struct snd_kcontrol_new snd_bt87x_capture_source = { 657 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 658 .name = "Capture Source", 659 .info = snd_bt87x_capture_source_info, 660 .get = snd_bt87x_capture_source_get, 661 .put = snd_bt87x_capture_source_put, 662}; 663 664static int snd_bt87x_free(struct snd_bt87x *chip) 665{ 666 if (chip->mmio) { 667 snd_bt87x_stop(chip); 668 if (chip->irq >= 0) 669 synchronize_irq(chip->irq); 670 671 iounmap(chip->mmio); 672 } 673 if (chip->irq >= 0) 674 free_irq(chip->irq, chip); 675 pci_release_regions(chip->pci); 676 pci_disable_device(chip->pci); 677 kfree(chip); 678 return 0; 679} 680 681static int snd_bt87x_dev_free(struct snd_device *device) 682{ 683 struct snd_bt87x *chip = device->device_data; 684 return snd_bt87x_free(chip); 685} 686 687static int __devinit snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) 688{ 689 int err; 690 struct snd_pcm *pcm; 691 692 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); 693 if (err < 0) 694 return err; 695 pcm->private_data = chip; 696 strcpy(pcm->name, name); 697 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops); 698 return snd_pcm_lib_preallocate_pages_for_all(pcm, 699 SNDRV_DMA_TYPE_DEV_SG, 700 snd_dma_pci_data(chip->pci), 701 128 * 1024, 702 ALIGN(255 * 4092, 1024)); 703} 704 705static int __devinit snd_bt87x_create(struct snd_card *card, 706 struct pci_dev *pci, 707 struct snd_bt87x **rchip) 708{ 709 struct snd_bt87x *chip; 710 int err; 711 static struct snd_device_ops ops = { 712 .dev_free = snd_bt87x_dev_free 713 }; 714 715 *rchip = NULL; 716 717 err = pci_enable_device(pci); 718 if (err < 0) 719 return err; 720 721 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 722 if (!chip) { 723 pci_disable_device(pci); 724 return -ENOMEM; 725 } 726 chip->card = card; 727 chip->pci = pci; 728 chip->irq = -1; 729 spin_lock_init(&chip->reg_lock); 730 731 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) { 732 kfree(chip); 733 pci_disable_device(pci); 734 return err; 735 } 736 chip->mmio = ioremap_nocache(pci_resource_start(pci, 0), 737 pci_resource_len(pci, 0)); 738 if (!chip->mmio) { 739 snd_bt87x_free(chip); 740 snd_printk(KERN_ERR "cannot remap io memory\n"); 741 return -ENOMEM; 742 } 743 744 chip->reg_control = CTL_DA_ES2 | CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); 745 chip->interrupt_mask = MY_INTERRUPTS; 746 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); 747 snd_bt87x_writel(chip, REG_INT_MASK, 0); 748 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); 749 750 if (request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, 751 "Bt87x audio", chip)) { 752 snd_bt87x_free(chip); 753 snd_printk(KERN_ERR "cannot grab irq\n"); 754 return -EBUSY; 755 } 756 chip->irq = pci->irq; 757 pci_set_master(pci); 758 synchronize_irq(chip->irq); 759 760 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 761 if (err < 0) { 762 snd_bt87x_free(chip); 763 return err; 764 } 765 snd_card_set_dev(card, &pci->dev); 766 *rchip = chip; 767 return 0; 768} 769 770#define BT_DEVICE(chip, subvend, subdev, rate) \ 771 { .vendor = PCI_VENDOR_ID_BROOKTREE, \ 772 .device = chip, \ 773 .subvendor = subvend, .subdevice = subdev, \ 774 .driver_data = rate } 775 776/* driver_data is the default digital_rate value for that device */ 777static struct pci_device_id snd_bt87x_ids[] = { 778 /* Hauppauge WinTV series */ 779 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, 32000), 780 /* Hauppauge WinTV series */ 781 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, 32000), 782 /* Viewcast Osprey 200 */ 783 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, 44100), 784 /* ATI TV-Wonder */ 785 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, 32000), 786 /* Leadtek Winfast tv 2000xp delux */ 787 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, 32000), 788 /* Voodoo TV 200 */ 789 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, 32000), 790 /* AVerMedia Studio No. 103, 203, ...? */ 791 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, 48000), 792 { } 793}; 794MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); 795 796/* cards known not to have audio 797 * (DVB cards use the audio function to transfer MPEG data) */ 798static struct { 799 unsigned short subvendor, subdevice; 800} blacklist[] __devinitdata = { 801 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ 802 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ 803 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ 804 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ 805 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ 806 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ 807 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ 808 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ 809 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ 810 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ 811 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ 812}; 813 814static struct pci_driver driver; 815 816/* return the rate of the card, or a negative value if it's blacklisted */ 817static int __devinit snd_bt87x_detect_card(struct pci_dev *pci) 818{ 819 int i; 820 const struct pci_device_id *supported; 821 822 supported = pci_match_device(&driver, pci); 823 if (supported && supported->driver_data > 0) 824 return supported->driver_data; 825 826 for (i = 0; i < ARRAY_SIZE(blacklist); ++i) 827 if (blacklist[i].subvendor == pci->subsystem_vendor && 828 blacklist[i].subdevice == pci->subsystem_device) { 829 snd_printdd(KERN_INFO "card %#04x-%#04x:%#04x has no audio\n", 830 pci->device, pci->subsystem_vendor, pci->subsystem_device); 831 return -EBUSY; 832 } 833 834 snd_printk(KERN_INFO "unknown card %#04x-%#04x:%#04x, using default rate 32000\n", 835 pci->device, pci->subsystem_vendor, pci->subsystem_device); 836 snd_printk(KERN_DEBUG "please mail id, board name, and, " 837 "if it works, the correct digital_rate option to " 838 "<alsa-devel@alsa-project.org>\n"); 839 return 32000; /* default rate */ 840} 841 842static int __devinit snd_bt87x_probe(struct pci_dev *pci, 843 const struct pci_device_id *pci_id) 844{ 845 static int dev; 846 struct snd_card *card; 847 struct snd_bt87x *chip; 848 int err, rate; 849 850 rate = pci_id->driver_data; 851 if (! rate) 852 if ((rate = snd_bt87x_detect_card(pci)) <= 0) 853 return -ENODEV; 854 855 if (dev >= SNDRV_CARDS) 856 return -ENODEV; 857 if (!enable[dev]) { 858 ++dev; 859 return -ENOENT; 860 } 861 862 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 863 if (!card) 864 return -ENOMEM; 865 866 err = snd_bt87x_create(card, pci, &chip); 867 if (err < 0) 868 goto _error; 869 870 if (digital_rate[dev] > 0) 871 chip->dig_rate = digital_rate[dev]; 872 else 873 chip->dig_rate = rate; 874 875 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); 876 if (err < 0) 877 goto _error; 878 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); 879 if (err < 0) 880 goto _error; 881 882 err = snd_ctl_add(card, snd_ctl_new1(&snd_bt87x_capture_volume, chip)); 883 if (err < 0) 884 goto _error; 885 err = snd_ctl_add(card, snd_ctl_new1(&snd_bt87x_capture_boost, chip)); 886 if (err < 0) 887 goto _error; 888 err = snd_ctl_add(card, snd_ctl_new1(&snd_bt87x_capture_source, chip)); 889 if (err < 0) 890 goto _error; 891 892 strcpy(card->driver, "Bt87x"); 893 sprintf(card->shortname, "Brooktree Bt%x", pci->device); 894 sprintf(card->longname, "%s at %#llx, irq %i", 895 card->shortname, (unsigned long long)pci_resource_start(pci, 0), 896 chip->irq); 897 strcpy(card->mixername, "Bt87x"); 898 899 err = snd_card_register(card); 900 if (err < 0) 901 goto _error; 902 903 pci_set_drvdata(pci, card); 904 ++dev; 905 return 0; 906 907_error: 908 snd_card_free(card); 909 return err; 910} 911 912static void __devexit snd_bt87x_remove(struct pci_dev *pci) 913{ 914 snd_card_free(pci_get_drvdata(pci)); 915 pci_set_drvdata(pci, NULL); 916} 917 918/* default entries for all Bt87x cards - it's not exported */ 919/* driver_data is set to 0 to call detection */ 920static struct pci_device_id snd_bt87x_default_ids[] __devinitdata = { 921 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, 0), 922 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, 0), 923 { } 924}; 925 926static struct pci_driver driver = { 927 .name = "Bt87x", 928 .id_table = snd_bt87x_ids, 929 .probe = snd_bt87x_probe, 930 .remove = __devexit_p(snd_bt87x_remove), 931}; 932 933static int __init alsa_card_bt87x_init(void) 934{ 935 if (load_all) 936 driver.id_table = snd_bt87x_default_ids; 937 return pci_register_driver(&driver); 938} 939 940static void __exit alsa_card_bt87x_exit(void) 941{ 942 pci_unregister_driver(&driver); 943} 944 945module_init(alsa_card_bt87x_init) 946module_exit(alsa_card_bt87x_exit) 947