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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA4 *5 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>6 *7 * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org>8 */9 10#include <linux/init.h>11#include <linux/interrupt.h>12#include <linux/pci.h>13#include <linux/slab.h>14#include <linux/module.h>15#include <linux/bitops.h>16#include <linux/io.h>17#include <sound/core.h>18#include <sound/pcm.h>19#include <sound/pcm_params.h>20#include <sound/control.h>21#include <sound/initval.h>22 23MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");24MODULE_DESCRIPTION("Brooktree Bt87x audio driver");25MODULE_LICENSE("GPL");26 27static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */28static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */29static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */30static int digital_rate[SNDRV_CARDS]; /* digital input rate */31static bool load_all; /* allow to load cards not the allowlist */32 33module_param_array(index, int, NULL, 0444);34MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");35module_param_array(id, charp, NULL, 0444);36MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");37module_param_array(enable, bool, NULL, 0444);38MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");39module_param_array(digital_rate, int, NULL, 0444);40MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");41module_param(load_all, bool, 0444);42MODULE_PARM_DESC(load_all, "Allow to load cards not on the allowlist");43 44 45/* register offsets */46#define REG_INT_STAT 0x100 /* interrupt status */47#define REG_INT_MASK 0x104 /* interrupt mask */48#define REG_GPIO_DMA_CTL 0x10c /* audio control */49#define REG_PACKET_LEN 0x110 /* audio packet lengths */50#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */51#define REG_RISC_COUNT 0x120 /* RISC program counter */52 53/* interrupt bits */54#define INT_OFLOW (1 << 3) /* audio A/D overflow */55#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */56#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */57#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */58#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */59#define INT_PPERR (1 << 15) /* PCI parity error */60#define INT_RIPERR (1 << 16) /* RISC instruction parity error */61#define INT_PABORT (1 << 17) /* PCI master or target abort */62#define INT_OCERR (1 << 18) /* invalid opcode */63#define INT_SCERR (1 << 19) /* sync counter overflow */64#define INT_RISC_EN (1 << 27) /* DMA controller running */65#define INT_RISCS_SHIFT 28 /* RISC status bits */66 67/* audio control bits */68#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */69#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */70#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */71#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */72#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */73#define CTL_ACAP_EN (1 << 4) /* enable audio capture */74#define CTL_DA_APP (1 << 5) /* GPIO input */75#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */76#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */77#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */78#define CTL_DA_SDR_MASK (0xf<< 8)79#define CTL_DA_LMT (1 << 12) /* limit audio data values */80#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */81#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */82#define CTL_DA_DPM (1 << 15) /* data packet mode */83#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */84#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */85#define CTL_DA_LRI (1 << 22) /* left/right indication */86#define CTL_DA_SCE (1 << 23) /* sample clock edge */87#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */88#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */89#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */90#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */91#define CTL_A_SEL_SHIFT 2492#define CTL_A_SEL_MASK (3 << 24)93#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */94#define CTL_A_G2X (1 << 27) /* audio gain boost */95#define CTL_A_GAIN_SHIFT 28 /* audio input gain */96#define CTL_A_GAIN_MASK (0xf<<28)97 98/* RISC instruction opcodes */99#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */100#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */101#define RISC_SKIP (0x2 << 28) /* skip FIFO data */102#define RISC_JUMP (0x7 << 28) /* jump to address */103#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */104 105/* RISC instruction bits */106#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */107#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */108#define RISC_SET_STATUS_SHIFT 16 /* set status bits */109#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */110#define RISC_IRQ ( 1 << 24) /* interrupt */111#define RISC_EOL ( 1 << 26) /* end of line */112#define RISC_SOL ( 1 << 27) /* start of line */113 114/* SYNC status bits values */115#define RISC_SYNC_FM1 0x6116#define RISC_SYNC_VRO 0xc117 118#define ANALOG_CLOCK 1792000119#ifdef CONFIG_SND_BT87X_OVERCLOCK120#define CLOCK_DIV_MIN 1121#else122#define CLOCK_DIV_MIN 4123#endif124#define CLOCK_DIV_MAX 15125 126#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \127 INT_RIPERR | INT_PABORT | INT_OCERR)128#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)129 130/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */131#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)132 133/* Cards with configuration information */134enum snd_bt87x_boardid {135 SND_BT87X_BOARD_UNKNOWN,136 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */137 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */138 SND_BT87X_BOARD_OSPREY2x0,139 SND_BT87X_BOARD_OSPREY440,140 SND_BT87X_BOARD_AVPHONE98,141};142 143/* Card configuration */144struct snd_bt87x_board {145 int dig_rate; /* Digital input sampling rate */146 u32 digital_fmt; /* Register settings for digital input */147 unsigned no_analog:1; /* No analog input */148 unsigned no_digital:1; /* No digital input */149};150 151static const struct snd_bt87x_board snd_bt87x_boards[] = {152 [SND_BT87X_BOARD_UNKNOWN] = {153 .dig_rate = 32000, /* just a guess */154 },155 [SND_BT87X_BOARD_GENERIC] = {156 .dig_rate = 32000,157 },158 [SND_BT87X_BOARD_ANALOG] = {159 .no_digital = 1,160 },161 [SND_BT87X_BOARD_OSPREY2x0] = {162 .dig_rate = 44100,163 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),164 },165 [SND_BT87X_BOARD_OSPREY440] = {166 .dig_rate = 32000,167 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),168 .no_analog = 1,169 },170 [SND_BT87X_BOARD_AVPHONE98] = {171 .dig_rate = 48000,172 },173};174 175struct snd_bt87x {176 struct snd_card *card;177 struct pci_dev *pci;178 struct snd_bt87x_board board;179 180 void __iomem *mmio;181 int irq;182 183 spinlock_t reg_lock;184 unsigned long opened;185 struct snd_pcm_substream *substream;186 187 struct snd_dma_buffer dma_risc;188 unsigned int line_bytes;189 unsigned int lines;190 191 u32 reg_control;192 u32 interrupt_mask;193 194 int current_line;195 196 int pci_parity_errors;197};198 199enum { DEVICE_DIGITAL, DEVICE_ANALOG };200 201static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)202{203 return readl(chip->mmio + reg);204}205 206static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)207{208 writel(value, chip->mmio + reg);209}210 211static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,212 unsigned int periods, unsigned int period_bytes)213{214 unsigned int i, offset;215 __le32 *risc;216 217 if (chip->dma_risc.area == NULL) {218 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,219 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)220 return -ENOMEM;221 }222 risc = (__le32 *)chip->dma_risc.area;223 offset = 0;224 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);225 *risc++ = cpu_to_le32(0);226 for (i = 0; i < periods; ++i) {227 u32 rest;228 229 rest = period_bytes;230 do {231 u32 cmd, len;232 unsigned int addr;233 234 len = PAGE_SIZE - (offset % PAGE_SIZE);235 if (len > rest)236 len = rest;237 cmd = RISC_WRITE | len;238 if (rest == period_bytes) {239 u32 block = i * 16 / periods;240 cmd |= RISC_SOL;241 cmd |= block << RISC_SET_STATUS_SHIFT;242 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;243 }244 if (len == rest)245 cmd |= RISC_EOL | RISC_IRQ;246 *risc++ = cpu_to_le32(cmd);247 addr = snd_pcm_sgbuf_get_addr(substream, offset);248 *risc++ = cpu_to_le32(addr);249 offset += len;250 rest -= len;251 } while (rest > 0);252 }253 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);254 *risc++ = cpu_to_le32(0);255 *risc++ = cpu_to_le32(RISC_JUMP);256 *risc++ = cpu_to_le32(chip->dma_risc.addr);257 chip->line_bytes = period_bytes;258 chip->lines = periods;259 return 0;260}261 262static void snd_bt87x_free_risc(struct snd_bt87x *chip)263{264 if (chip->dma_risc.area) {265 snd_dma_free_pages(&chip->dma_risc);266 chip->dma_risc.area = NULL;267 }268}269 270static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status)271{272 int pci_status = pci_status_get_and_clear_errors(chip->pci);273 274 if (pci_status != PCI_STATUS_DETECTED_PARITY)275 dev_err(chip->card->dev,276 "Aieee - PCI error! status %#08x, PCI status %#04x\n",277 status & ERROR_INTERRUPTS, pci_status);278 else {279 dev_err(chip->card->dev,280 "Aieee - PCI parity error detected!\n");281 /* error 'handling' similar to aic7xxx_pci.c: */282 chip->pci_parity_errors++;283 if (chip->pci_parity_errors > 20) {284 dev_err(chip->card->dev,285 "Too many PCI parity errors observed.\n");286 dev_err(chip->card->dev,287 "Some device on this bus is generating bad parity.\n");288 dev_err(chip->card->dev,289 "This is an error *observed by*, not *generated by*, this card.\n");290 dev_err(chip->card->dev,291 "PCI parity error checking has been disabled.\n");292 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);293 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);294 }295 }296}297 298static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)299{300 struct snd_bt87x *chip = dev_id;301 unsigned int status, irq_status;302 303 status = snd_bt87x_readl(chip, REG_INT_STAT);304 irq_status = status & chip->interrupt_mask;305 if (!irq_status)306 return IRQ_NONE;307 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);308 309 if (irq_status & ERROR_INTERRUPTS) {310 if (irq_status & (INT_FBUS | INT_FTRGT))311 dev_warn(chip->card->dev,312 "FIFO overrun, status %#08x\n", status);313 if (irq_status & INT_OCERR)314 dev_err(chip->card->dev,315 "internal RISC error, status %#08x\n", status);316 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))317 snd_bt87x_pci_error(chip, irq_status);318 }319 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {320 int current_block, irq_block;321 322 /* assume that exactly one line has been recorded */323 chip->current_line = (chip->current_line + 1) % chip->lines;324 /* but check if some interrupts have been skipped */325 current_block = chip->current_line * 16 / chip->lines;326 irq_block = status >> INT_RISCS_SHIFT;327 if (current_block != irq_block)328 chip->current_line = DIV_ROUND_UP(irq_block * chip->lines,329 16);330 331 snd_pcm_period_elapsed(chip->substream);332 }333 return IRQ_HANDLED;334}335 336static const struct snd_pcm_hardware snd_bt87x_digital_hw = {337 .info = SNDRV_PCM_INFO_MMAP |338 SNDRV_PCM_INFO_INTERLEAVED |339 SNDRV_PCM_INFO_BLOCK_TRANSFER |340 SNDRV_PCM_INFO_MMAP_VALID |341 SNDRV_PCM_INFO_BATCH,342 .formats = SNDRV_PCM_FMTBIT_S16_LE,343 .rates = 0, /* set at runtime */344 .channels_min = 2,345 .channels_max = 2,346 .buffer_bytes_max = 255 * 4092,347 .period_bytes_min = 32,348 .period_bytes_max = 4092,349 .periods_min = 2,350 .periods_max = 255,351};352 353static const struct snd_pcm_hardware snd_bt87x_analog_hw = {354 .info = SNDRV_PCM_INFO_MMAP |355 SNDRV_PCM_INFO_INTERLEAVED |356 SNDRV_PCM_INFO_BLOCK_TRANSFER |357 SNDRV_PCM_INFO_MMAP_VALID |358 SNDRV_PCM_INFO_BATCH,359 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,360 .rates = SNDRV_PCM_RATE_KNOT,361 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,362 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,363 .channels_min = 1,364 .channels_max = 1,365 .buffer_bytes_max = 255 * 4092,366 .period_bytes_min = 32,367 .period_bytes_max = 4092,368 .periods_min = 2,369 .periods_max = 255,370};371 372static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)373{374 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;375 runtime->hw = snd_bt87x_digital_hw;376 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);377 runtime->hw.rate_min = chip->board.dig_rate;378 runtime->hw.rate_max = chip->board.dig_rate;379 return 0;380}381 382static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)383{384 static const struct snd_ratnum analog_clock = {385 .num = ANALOG_CLOCK,386 .den_min = CLOCK_DIV_MIN,387 .den_max = CLOCK_DIV_MAX,388 .den_step = 1389 };390 static const struct snd_pcm_hw_constraint_ratnums constraint_rates = {391 .nrats = 1,392 .rats = &analog_clock393 };394 395 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);396 runtime->hw = snd_bt87x_analog_hw;397 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,398 &constraint_rates);399}400 401static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)402{403 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);404 struct snd_pcm_runtime *runtime = substream->runtime;405 int err;406 407 if (test_and_set_bit(0, &chip->opened))408 return -EBUSY;409 410 if (substream->pcm->device == DEVICE_DIGITAL)411 err = snd_bt87x_set_digital_hw(chip, runtime);412 else413 err = snd_bt87x_set_analog_hw(chip, runtime);414 if (err < 0)415 goto _error;416 417 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);418 if (err < 0)419 goto _error;420 421 chip->substream = substream;422 return 0;423 424_error:425 clear_bit(0, &chip->opened);426 smp_mb__after_atomic();427 return err;428}429 430static int snd_bt87x_close(struct snd_pcm_substream *substream)431{432 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);433 434 spin_lock_irq(&chip->reg_lock);435 chip->reg_control |= CTL_A_PWRDN;436 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);437 spin_unlock_irq(&chip->reg_lock);438 439 chip->substream = NULL;440 clear_bit(0, &chip->opened);441 smp_mb__after_atomic();442 return 0;443}444 445static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,446 struct snd_pcm_hw_params *hw_params)447{448 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);449 450 return snd_bt87x_create_risc(chip, substream,451 params_periods(hw_params),452 params_period_bytes(hw_params));453}454 455static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)456{457 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);458 459 snd_bt87x_free_risc(chip);460 return 0;461}462 463static int snd_bt87x_prepare(struct snd_pcm_substream *substream)464{465 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);466 struct snd_pcm_runtime *runtime = substream->runtime;467 int decimation;468 469 spin_lock_irq(&chip->reg_lock);470 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);471 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;472 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;473 if (runtime->format == SNDRV_PCM_FORMAT_S8)474 chip->reg_control |= CTL_DA_SBR;475 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);476 spin_unlock_irq(&chip->reg_lock);477 return 0;478}479 480static int snd_bt87x_start(struct snd_bt87x *chip)481{482 spin_lock(&chip->reg_lock);483 chip->current_line = 0;484 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;485 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);486 snd_bt87x_writel(chip, REG_PACKET_LEN,487 chip->line_bytes | (chip->lines << 16));488 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);489 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);490 spin_unlock(&chip->reg_lock);491 return 0;492}493 494static int snd_bt87x_stop(struct snd_bt87x *chip)495{496 spin_lock(&chip->reg_lock);497 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);498 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);499 snd_bt87x_writel(chip, REG_INT_MASK, 0);500 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);501 spin_unlock(&chip->reg_lock);502 return 0;503}504 505static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)506{507 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);508 509 switch (cmd) {510 case SNDRV_PCM_TRIGGER_START:511 return snd_bt87x_start(chip);512 case SNDRV_PCM_TRIGGER_STOP:513 return snd_bt87x_stop(chip);514 default:515 return -EINVAL;516 }517}518 519static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)520{521 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);522 struct snd_pcm_runtime *runtime = substream->runtime;523 524 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);525}526 527static const struct snd_pcm_ops snd_bt87x_pcm_ops = {528 .open = snd_bt87x_pcm_open,529 .close = snd_bt87x_close,530 .hw_params = snd_bt87x_hw_params,531 .hw_free = snd_bt87x_hw_free,532 .prepare = snd_bt87x_prepare,533 .trigger = snd_bt87x_trigger,534 .pointer = snd_bt87x_pointer,535};536 537static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,538 struct snd_ctl_elem_info *info)539{540 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;541 info->count = 1;542 info->value.integer.min = 0;543 info->value.integer.max = 15;544 return 0;545}546 547static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,548 struct snd_ctl_elem_value *value)549{550 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);551 552 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;553 return 0;554}555 556static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,557 struct snd_ctl_elem_value *value)558{559 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);560 u32 old_control;561 int changed;562 563 spin_lock_irq(&chip->reg_lock);564 old_control = chip->reg_control;565 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)566 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);567 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);568 changed = old_control != chip->reg_control;569 spin_unlock_irq(&chip->reg_lock);570 return changed;571}572 573static const struct snd_kcontrol_new snd_bt87x_capture_volume = {574 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,575 .name = "Capture Volume",576 .info = snd_bt87x_capture_volume_info,577 .get = snd_bt87x_capture_volume_get,578 .put = snd_bt87x_capture_volume_put,579};580 581#define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info582 583static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,584 struct snd_ctl_elem_value *value)585{586 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);587 588 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);589 return 0;590}591 592static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,593 struct snd_ctl_elem_value *value)594{595 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);596 u32 old_control;597 int changed;598 599 spin_lock_irq(&chip->reg_lock);600 old_control = chip->reg_control;601 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)602 | (value->value.integer.value[0] ? CTL_A_G2X : 0);603 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);604 changed = chip->reg_control != old_control;605 spin_unlock_irq(&chip->reg_lock);606 return changed;607}608 609static const struct snd_kcontrol_new snd_bt87x_capture_boost = {610 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,611 .name = "Capture Boost",612 .info = snd_bt87x_capture_boost_info,613 .get = snd_bt87x_capture_boost_get,614 .put = snd_bt87x_capture_boost_put,615};616 617static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,618 struct snd_ctl_elem_info *info)619{620 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"};621 622 return snd_ctl_enum_info(info, 1, 3, texts);623}624 625static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,626 struct snd_ctl_elem_value *value)627{628 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);629 630 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;631 return 0;632}633 634static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,635 struct snd_ctl_elem_value *value)636{637 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);638 u32 old_control;639 int changed;640 641 spin_lock_irq(&chip->reg_lock);642 old_control = chip->reg_control;643 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)644 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);645 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);646 changed = chip->reg_control != old_control;647 spin_unlock_irq(&chip->reg_lock);648 return changed;649}650 651static const struct snd_kcontrol_new snd_bt87x_capture_source = {652 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,653 .name = "Capture Source",654 .info = snd_bt87x_capture_source_info,655 .get = snd_bt87x_capture_source_get,656 .put = snd_bt87x_capture_source_put,657};658 659static void snd_bt87x_free(struct snd_card *card)660{661 struct snd_bt87x *chip = card->private_data;662 663 snd_bt87x_stop(chip);664}665 666static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)667{668 int err;669 struct snd_pcm *pcm;670 671 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);672 if (err < 0)673 return err;674 pcm->private_data = chip;675 strcpy(pcm->name, name);676 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);677 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,678 &chip->pci->dev,679 128 * 1024,680 ALIGN(255 * 4092, 1024));681 return 0;682}683 684static int snd_bt87x_create(struct snd_card *card,685 struct pci_dev *pci)686{687 struct snd_bt87x *chip = card->private_data;688 int err;689 690 err = pcim_enable_device(pci);691 if (err < 0)692 return err;693 694 chip->card = card;695 chip->pci = pci;696 chip->irq = -1;697 spin_lock_init(&chip->reg_lock);698 699 err = pcim_iomap_regions(pci, 1 << 0, "Bt87x audio");700 if (err < 0)701 return err;702 chip->mmio = pcim_iomap_table(pci)[0];703 704 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |705 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);706 chip->interrupt_mask = MY_INTERRUPTS;707 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);708 snd_bt87x_writel(chip, REG_INT_MASK, 0);709 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);710 711 err = devm_request_irq(&pci->dev, pci->irq, snd_bt87x_interrupt,712 IRQF_SHARED, KBUILD_MODNAME, chip);713 if (err < 0) {714 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);715 return err;716 }717 chip->irq = pci->irq;718 card->sync_irq = chip->irq;719 card->private_free = snd_bt87x_free;720 pci_set_master(pci);721 722 return 0;723}724 725#define BT_DEVICE(chip, subvend, subdev, id) \726 { .vendor = PCI_VENDOR_ID_BROOKTREE, \727 .device = chip, \728 .subvendor = subvend, .subdevice = subdev, \729 .driver_data = SND_BT87X_BOARD_ ## id }730/* driver_data is the card id for that device */731 732static const struct pci_device_id snd_bt87x_ids[] = {733 /* Hauppauge WinTV series */734 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),735 /* Hauppauge WinTV series */736 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),737 /* Viewcast Osprey 200 */738 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),739 /* Viewcast Osprey 440 (rate is configurable via gpio) */740 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),741 /* ATI TV-Wonder */742 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),743 /* Leadtek Winfast tv 2000xp delux */744 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),745 /* Pinnacle PCTV */746 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC),747 /* Voodoo TV 200 */748 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),749 /* Askey Computer Corp. MagicTView'99 */750 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC),751 /* AVerMedia Studio No. 103, 203, ...? */752 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),753 /* Prolink PixelView PV-M4900 */754 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),755 /* Pinnacle Studio PCTV rave */756 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),757 { }758};759MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);760 761/* cards known not to have audio762 * (DVB cards use the audio function to transfer MPEG data) */763static struct {764 unsigned short subvendor, subdevice;765} denylist[] = {766 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */767 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */768 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */769 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */770 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */771 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */772 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */773 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */774 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */775 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */776 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */777};778 779static struct pci_driver driver;780 781/* return the id of the card, or a negative value if it's on the denylist */782static int snd_bt87x_detect_card(struct pci_dev *pci)783{784 int i;785 const struct pci_device_id *supported;786 787 supported = pci_match_id(snd_bt87x_ids, pci);788 if (supported && supported->driver_data > 0)789 return supported->driver_data;790 791 for (i = 0; i < ARRAY_SIZE(denylist); ++i)792 if (denylist[i].subvendor == pci->subsystem_vendor &&793 denylist[i].subdevice == pci->subsystem_device) {794 dev_dbg(&pci->dev,795 "card %#04x-%#04x:%#04x has no audio\n",796 pci->device, pci->subsystem_vendor, pci->subsystem_device);797 return -EBUSY;798 }799 800 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n",801 pci->device, pci->subsystem_vendor, pci->subsystem_device);802 dev_info(&pci->dev, "please mail id, board name, and, "803 "if it works, the correct digital_rate option to "804 "<alsa-devel@alsa-project.org>\n");805 return SND_BT87X_BOARD_UNKNOWN;806}807 808static int __snd_bt87x_probe(struct pci_dev *pci,809 const struct pci_device_id *pci_id)810{811 static int dev;812 struct snd_card *card;813 struct snd_bt87x *chip;814 int err;815 enum snd_bt87x_boardid boardid;816 817 if (!pci_id->driver_data) {818 err = snd_bt87x_detect_card(pci);819 if (err < 0)820 return -ENODEV;821 boardid = err;822 } else823 boardid = pci_id->driver_data;824 825 if (dev >= SNDRV_CARDS)826 return -ENODEV;827 if (!enable[dev]) {828 ++dev;829 return -ENOENT;830 }831 832 err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,833 sizeof(*chip), &card);834 if (err < 0)835 return err;836 chip = card->private_data;837 838 err = snd_bt87x_create(card, pci);839 if (err < 0)840 return err;841 842 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));843 844 if (!chip->board.no_digital) {845 if (digital_rate[dev] > 0)846 chip->board.dig_rate = digital_rate[dev];847 848 chip->reg_control |= chip->board.digital_fmt;849 850 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");851 if (err < 0)852 return err;853 }854 if (!chip->board.no_analog) {855 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");856 if (err < 0)857 return err;858 err = snd_ctl_add(card, snd_ctl_new1(859 &snd_bt87x_capture_volume, chip));860 if (err < 0)861 return err;862 err = snd_ctl_add(card, snd_ctl_new1(863 &snd_bt87x_capture_boost, chip));864 if (err < 0)865 return err;866 err = snd_ctl_add(card, snd_ctl_new1(867 &snd_bt87x_capture_source, chip));868 if (err < 0)869 return err;870 }871 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "872 "(rate %d Hz)\n", dev, boardid,873 chip->board.no_analog ? "no " : "",874 chip->board.no_digital ? "no " : "", chip->board.dig_rate);875 876 strcpy(card->driver, "Bt87x");877 sprintf(card->shortname, "Brooktree Bt%x", pci->device);878 sprintf(card->longname, "%s at %#llx, irq %i",879 card->shortname, (unsigned long long)pci_resource_start(pci, 0),880 chip->irq);881 strcpy(card->mixername, "Bt87x");882 883 err = snd_card_register(card);884 if (err < 0)885 return err;886 887 pci_set_drvdata(pci, card);888 ++dev;889 return 0;890}891 892static int snd_bt87x_probe(struct pci_dev *pci,893 const struct pci_device_id *pci_id)894{895 return snd_card_free_on_error(&pci->dev, __snd_bt87x_probe(pci, pci_id));896}897 898/* default entries for all Bt87x cards - it's not exported */899/* driver_data is set to 0 to call detection */900static const struct pci_device_id snd_bt87x_default_ids[] = {901 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),902 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),903 { }904};905 906static struct pci_driver driver = {907 .name = KBUILD_MODNAME,908 .id_table = snd_bt87x_ids,909 .probe = snd_bt87x_probe,910};911 912static int __init alsa_card_bt87x_init(void)913{914 if (load_all)915 driver.id_table = snd_bt87x_default_ids;916 return pci_register_driver(&driver);917}918 919static void __exit alsa_card_bt87x_exit(void)920{921 pci_unregister_driver(&driver);922}923 924module_init(alsa_card_bt87x_init)925module_exit(alsa_card_bt87x_exit)926