diff options
Diffstat (limited to 'kernel/sound/pci/bt87x.c')
| -rw-r--r-- | kernel/sound/pci/bt87x.c | 994 |
1 files changed, 994 insertions, 0 deletions
diff --git a/kernel/sound/pci/bt87x.c b/kernel/sound/pci/bt87x.c new file mode 100644 index 000000000..5925b7170 --- /dev/null +++ b/kernel/sound/pci/bt87x.c @@ -0,0 +1,994 @@ +/* + * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * + * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org> + * + * + * This driver is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This driver is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/bitops.h> +#include <linux/io.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/control.h> +#include <sound/initval.h> + +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_DESCRIPTION("Brooktree Bt87x audio driver"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878}," + "{Brooktree,Bt879}}"); + +static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ +static int digital_rate[SNDRV_CARDS]; /* digital input rate */ +static bool load_all; /* allow to load the non-whitelisted cards */ + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for Bt87x soundcard"); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for Bt87x soundcard"); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable Bt87x soundcard"); +module_param_array(digital_rate, int, NULL, 0444); +MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard"); +module_param(load_all, bool, 0444); +MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards"); + + +/* register offsets */ +#define REG_INT_STAT 0x100 /* interrupt status */ +#define REG_INT_MASK 0x104 /* interrupt mask */ +#define REG_GPIO_DMA_CTL 0x10c /* audio control */ +#define REG_PACKET_LEN 0x110 /* audio packet lengths */ +#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */ +#define REG_RISC_COUNT 0x120 /* RISC program counter */ + +/* interrupt bits */ +#define INT_OFLOW (1 << 3) /* audio A/D overflow */ +#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */ +#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */ +#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */ +#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */ +#define INT_PPERR (1 << 15) /* PCI parity error */ +#define INT_RIPERR (1 << 16) /* RISC instruction parity error */ +#define INT_PABORT (1 << 17) /* PCI master or target abort */ +#define INT_OCERR (1 << 18) /* invalid opcode */ +#define INT_SCERR (1 << 19) /* sync counter overflow */ +#define INT_RISC_EN (1 << 27) /* DMA controller running */ +#define INT_RISCS_SHIFT 28 /* RISC status bits */ + +/* audio control bits */ +#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */ +#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */ +#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */ +#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */ +#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */ +#define CTL_ACAP_EN (1 << 4) /* enable audio capture */ +#define CTL_DA_APP (1 << 5) /* GPIO input */ +#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */ +#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */ +#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */ +#define CTL_DA_SDR_MASK (0xf<< 8) +#define CTL_DA_LMT (1 << 12) /* limit audio data values */ +#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */ +#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */ +#define CTL_DA_DPM (1 << 15) /* data packet mode */ +#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */ +#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */ +#define CTL_DA_LRI (1 << 22) /* left/right indication */ +#define CTL_DA_SCE (1 << 23) /* sample clock edge */ +#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */ +#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */ +#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */ +#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */ +#define CTL_A_SEL_SHIFT 24 +#define CTL_A_SEL_MASK (3 << 24) +#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */ +#define CTL_A_G2X (1 << 27) /* audio gain boost */ +#define CTL_A_GAIN_SHIFT 28 /* audio input gain */ +#define CTL_A_GAIN_MASK (0xf<<28) + +/* RISC instruction opcodes */ +#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */ +#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */ +#define RISC_SKIP (0x2 << 28) /* skip FIFO data */ +#define RISC_JUMP (0x7 << 28) /* jump to address */ +#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */ + +/* RISC instruction bits */ +#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */ +#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */ +#define RISC_SET_STATUS_SHIFT 16 /* set status bits */ +#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */ +#define RISC_IRQ ( 1 << 24) /* interrupt */ +#define RISC_EOL ( 1 << 26) /* end of line */ +#define RISC_SOL ( 1 << 27) /* start of line */ + +/* SYNC status bits values */ +#define RISC_SYNC_FM1 0x6 +#define RISC_SYNC_VRO 0xc + +#define ANALOG_CLOCK 1792000 +#ifdef CONFIG_SND_BT87X_OVERCLOCK +#define CLOCK_DIV_MIN 1 +#else +#define CLOCK_DIV_MIN 4 +#endif +#define CLOCK_DIV_MAX 15 + +#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \ + INT_RIPERR | INT_PABORT | INT_OCERR) +#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS) + +/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */ +#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8) + +/* Cards with configuration information */ +enum snd_bt87x_boardid { + SND_BT87X_BOARD_UNKNOWN, + SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */ + SND_BT87X_BOARD_ANALOG, /* board with no external A/D */ + SND_BT87X_BOARD_OSPREY2x0, + SND_BT87X_BOARD_OSPREY440, + SND_BT87X_BOARD_AVPHONE98, +}; + +/* Card configuration */ +struct snd_bt87x_board { + int dig_rate; /* Digital input sampling rate */ + u32 digital_fmt; /* Register settings for digital input */ + unsigned no_analog:1; /* No analog input */ + unsigned no_digital:1; /* No digital input */ +}; + +static struct snd_bt87x_board snd_bt87x_boards[] = { + [SND_BT87X_BOARD_UNKNOWN] = { + .dig_rate = 32000, /* just a guess */ + }, + [SND_BT87X_BOARD_GENERIC] = { + .dig_rate = 32000, + }, + [SND_BT87X_BOARD_ANALOG] = { + .no_digital = 1, + }, + [SND_BT87X_BOARD_OSPREY2x0] = { + .dig_rate = 44100, + .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT), + }, + [SND_BT87X_BOARD_OSPREY440] = { + .dig_rate = 32000, + .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT), + .no_analog = 1, + }, + [SND_BT87X_BOARD_AVPHONE98] = { + .dig_rate = 48000, + }, +}; + +struct snd_bt87x { + struct snd_card *card; + struct pci_dev *pci; + struct snd_bt87x_board board; + + void __iomem *mmio; + int irq; + + spinlock_t reg_lock; + unsigned long opened; + struct snd_pcm_substream *substream; + + struct snd_dma_buffer dma_risc; + unsigned int line_bytes; + unsigned int lines; + + u32 reg_control; + u32 interrupt_mask; + + int current_line; + + int pci_parity_errors; +}; + +enum { DEVICE_DIGITAL, DEVICE_ANALOG }; + +static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg) +{ + return readl(chip->mmio + reg); +} + +static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value) +{ + writel(value, chip->mmio + reg); +} + +static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream, + unsigned int periods, unsigned int period_bytes) +{ + unsigned int i, offset; + u32 *risc; + + if (chip->dma_risc.area == NULL) { + if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), + PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0) + return -ENOMEM; + } + risc = (u32 *)chip->dma_risc.area; + offset = 0; + *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1); + *risc++ = cpu_to_le32(0); + for (i = 0; i < periods; ++i) { + u32 rest; + + rest = period_bytes; + do { + u32 cmd, len; + unsigned int addr; + + len = PAGE_SIZE - (offset % PAGE_SIZE); + if (len > rest) + len = rest; + cmd = RISC_WRITE | len; + if (rest == period_bytes) { + u32 block = i * 16 / periods; + cmd |= RISC_SOL; + cmd |= block << RISC_SET_STATUS_SHIFT; + cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT; + } + if (len == rest) + cmd |= RISC_EOL | RISC_IRQ; + *risc++ = cpu_to_le32(cmd); + addr = snd_pcm_sgbuf_get_addr(substream, offset); + *risc++ = cpu_to_le32(addr); + offset += len; + rest -= len; + } while (rest > 0); + } + *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO); + *risc++ = cpu_to_le32(0); + *risc++ = cpu_to_le32(RISC_JUMP); + *risc++ = cpu_to_le32(chip->dma_risc.addr); + chip->line_bytes = period_bytes; + chip->lines = periods; + return 0; +} + +static void snd_bt87x_free_risc(struct snd_bt87x *chip) +{ + if (chip->dma_risc.area) { + snd_dma_free_pages(&chip->dma_risc); + chip->dma_risc.area = NULL; + } +} + +static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status) +{ + u16 pci_status; + + pci_read_config_word(chip->pci, PCI_STATUS, &pci_status); + pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT | + PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT | + PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY; + pci_write_config_word(chip->pci, PCI_STATUS, pci_status); + if (pci_status != PCI_STATUS_DETECTED_PARITY) + dev_err(chip->card->dev, + "Aieee - PCI error! status %#08x, PCI status %#04x\n", + status & ERROR_INTERRUPTS, pci_status); + else { + dev_err(chip->card->dev, + "Aieee - PCI parity error detected!\n"); + /* error 'handling' similar to aic7xxx_pci.c: */ + chip->pci_parity_errors++; + if (chip->pci_parity_errors > 20) { + dev_err(chip->card->dev, + "Too many PCI parity errors observed.\n"); + dev_err(chip->card->dev, + "Some device on this bus is generating bad parity.\n"); + dev_err(chip->card->dev, + "This is an error *observed by*, not *generated by*, this card.\n"); + dev_err(chip->card->dev, + "PCI parity error checking has been disabled.\n"); + chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR); + snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); + } + } +} + +static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id) +{ + struct snd_bt87x *chip = dev_id; + unsigned int status, irq_status; + + status = snd_bt87x_readl(chip, REG_INT_STAT); + irq_status = status & chip->interrupt_mask; + if (!irq_status) + return IRQ_NONE; + snd_bt87x_writel(chip, REG_INT_STAT, irq_status); + + if (irq_status & ERROR_INTERRUPTS) { + if (irq_status & (INT_FBUS | INT_FTRGT)) + dev_warn(chip->card->dev, + "FIFO overrun, status %#08x\n", status); + if (irq_status & INT_OCERR) + dev_err(chip->card->dev, + "internal RISC error, status %#08x\n", status); + if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT)) + snd_bt87x_pci_error(chip, irq_status); + } + if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) { + int current_block, irq_block; + + /* assume that exactly one line has been recorded */ + chip->current_line = (chip->current_line + 1) % chip->lines; + /* but check if some interrupts have been skipped */ + current_block = chip->current_line * 16 / chip->lines; + irq_block = status >> INT_RISCS_SHIFT; + if (current_block != irq_block) + chip->current_line = (irq_block * chip->lines + 15) / 16; + + snd_pcm_period_elapsed(chip->substream); + } + return IRQ_HANDLED; +} + +static struct snd_pcm_hardware snd_bt87x_digital_hw = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = 0, /* set at runtime */ + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 255 * 4092, + .period_bytes_min = 32, + .period_bytes_max = 4092, + .periods_min = 2, + .periods_max = 255, +}; + +static struct snd_pcm_hardware snd_bt87x_analog_hw = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, + .rates = SNDRV_PCM_RATE_KNOT, + .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, + .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, + .channels_min = 1, + .channels_max = 1, + .buffer_bytes_max = 255 * 4092, + .period_bytes_min = 32, + .period_bytes_max = 4092, + .periods_min = 2, + .periods_max = 255, +}; + +static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) +{ + chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN; + runtime->hw = snd_bt87x_digital_hw; + runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate); + runtime->hw.rate_min = chip->board.dig_rate; + runtime->hw.rate_max = chip->board.dig_rate; + return 0; +} + +static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) +{ + static struct snd_ratnum analog_clock = { + .num = ANALOG_CLOCK, + .den_min = CLOCK_DIV_MIN, + .den_max = CLOCK_DIV_MAX, + .den_step = 1 + }; + static struct snd_pcm_hw_constraint_ratnums constraint_rates = { + .nrats = 1, + .rats = &analog_clock + }; + + chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN); + runtime->hw = snd_bt87x_analog_hw; + return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + &constraint_rates); +} + +static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_bt87x *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + if (test_and_set_bit(0, &chip->opened)) + return -EBUSY; + + if (substream->pcm->device == DEVICE_DIGITAL) + err = snd_bt87x_set_digital_hw(chip, runtime); + else + err = snd_bt87x_set_analog_hw(chip, runtime); + if (err < 0) + goto _error; + + err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); + if (err < 0) + goto _error; + + chip->substream = substream; + return 0; + +_error: + clear_bit(0, &chip->opened); + smp_mb__after_atomic(); + return err; +} + +static int snd_bt87x_close(struct snd_pcm_substream *substream) +{ + struct snd_bt87x *chip = snd_pcm_substream_chip(substream); + + spin_lock_irq(&chip->reg_lock); + chip->reg_control |= CTL_A_PWRDN; + snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); + spin_unlock_irq(&chip->reg_lock); + + chip->substream = NULL; + clear_bit(0, &chip->opened); + smp_mb__after_atomic(); + return 0; +} + +static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_bt87x *chip = snd_pcm_substream_chip(substream); + int err; + + err = snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(hw_params)); + if (err < 0) + return err; + return snd_bt87x_create_risc(chip, substream, + params_periods(hw_params), + params_period_bytes(hw_params)); +} + +static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_bt87x *chip = snd_pcm_substream_chip(substream); + + snd_bt87x_free_risc(chip); + snd_pcm_lib_free_pages(substream); + return 0; +} + +static int snd_bt87x_prepare(struct snd_pcm_substream *substream) +{ + struct snd_bt87x *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + int decimation; + + spin_lock_irq(&chip->reg_lock); + chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); + decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate; + chip->reg_control |= decimation << CTL_DA_SDR_SHIFT; + if (runtime->format == SNDRV_PCM_FORMAT_S8) + chip->reg_control |= CTL_DA_SBR; + snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); + spin_unlock_irq(&chip->reg_lock); + return 0; +} + +static int snd_bt87x_start(struct snd_bt87x *chip) +{ + spin_lock(&chip->reg_lock); + chip->current_line = 0; + chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN; + snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr); + snd_bt87x_writel(chip, REG_PACKET_LEN, + chip->line_bytes | (chip->lines << 16)); + snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); + snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); + spin_unlock(&chip->reg_lock); + return 0; +} + +static int snd_bt87x_stop(struct snd_bt87x *chip) +{ + spin_lock(&chip->reg_lock); + chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN); + snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); + snd_bt87x_writel(chip, REG_INT_MASK, 0); + snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); + spin_unlock(&chip->reg_lock); + return 0; +} + +static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_bt87x *chip = snd_pcm_substream_chip(substream); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + return snd_bt87x_start(chip); + case SNDRV_PCM_TRIGGER_STOP: + return snd_bt87x_stop(chip); + default: + return -EINVAL; + } +} + +static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) +{ + struct snd_bt87x *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + + return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); +} + +static struct snd_pcm_ops snd_bt87x_pcm_ops = { + .open = snd_bt87x_pcm_open, + .close = snd_bt87x_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_bt87x_hw_params, + .hw_free = snd_bt87x_hw_free, + .prepare = snd_bt87x_prepare, + .trigger = snd_bt87x_trigger, + .pointer = snd_bt87x_pointer, + .page = snd_pcm_sgbuf_ops_page, +}; + +static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *info) +{ + info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + info->count = 1; + info->value.integer.min = 0; + info->value.integer.max = 15; + return 0; +} + +static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); + + value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; + return 0; +} + +static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); + u32 old_control; + int changed; + + spin_lock_irq(&chip->reg_lock); + old_control = chip->reg_control; + chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) + | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); + snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); + changed = old_control != chip->reg_control; + spin_unlock_irq(&chip->reg_lock); + return changed; +} + +static struct snd_kcontrol_new snd_bt87x_capture_volume = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Capture Volume", + .info = snd_bt87x_capture_volume_info, + .get = snd_bt87x_capture_volume_get, + .put = snd_bt87x_capture_volume_put, +}; + +#define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info + +static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); + + value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); + return 0; +} + +static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); + u32 old_control; + int changed; + + spin_lock_irq(&chip->reg_lock); + old_control = chip->reg_control; + chip->reg_control = (chip->reg_control & ~CTL_A_G2X) + | (value->value.integer.value[0] ? CTL_A_G2X : 0); + snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); + changed = chip->reg_control != old_control; + spin_unlock_irq(&chip->reg_lock); + return changed; +} + +static struct snd_kcontrol_new snd_bt87x_capture_boost = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Capture Boost", + .info = snd_bt87x_capture_boost_info, + .get = snd_bt87x_capture_boost_get, + .put = snd_bt87x_capture_boost_put, +}; + +static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *info) +{ + static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"}; + + return snd_ctl_enum_info(info, 1, 3, texts); +} + +static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); + + value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; + return 0; +} + +static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); + u32 old_control; + int changed; + + spin_lock_irq(&chip->reg_lock); + old_control = chip->reg_control; + chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) + | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); + snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); + changed = chip->reg_control != old_control; + spin_unlock_irq(&chip->reg_lock); + return changed; +} + +static struct snd_kcontrol_new snd_bt87x_capture_source = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Capture Source", + .info = snd_bt87x_capture_source_info, + .get = snd_bt87x_capture_source_get, + .put = snd_bt87x_capture_source_put, +}; + +static int snd_bt87x_free(struct snd_bt87x *chip) +{ + if (chip->mmio) + snd_bt87x_stop(chip); + if (chip->irq >= 0) + free_irq(chip->irq, chip); + iounmap(chip->mmio); + pci_release_regions(chip->pci); + pci_disable_device(chip->pci); + kfree(chip); + return 0; +} + +static int snd_bt87x_dev_free(struct snd_device *device) +{ + struct snd_bt87x *chip = device->device_data; + return snd_bt87x_free(chip); +} + +static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) +{ + int err; + struct snd_pcm *pcm; + + err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); + if (err < 0) + return err; + pcm->private_data = chip; + strcpy(pcm->name, name); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops); + return snd_pcm_lib_preallocate_pages_for_all(pcm, + SNDRV_DMA_TYPE_DEV_SG, + snd_dma_pci_data(chip->pci), + 128 * 1024, + ALIGN(255 * 4092, 1024)); +} + +static int snd_bt87x_create(struct snd_card *card, + struct pci_dev *pci, + struct snd_bt87x **rchip) +{ + struct snd_bt87x *chip; + int err; + static struct snd_device_ops ops = { + .dev_free = snd_bt87x_dev_free + }; + + *rchip = NULL; + + err = pci_enable_device(pci); + if (err < 0) + return err; + + chip = kzalloc(sizeof(*chip), GFP_KERNEL); + if (!chip) { + pci_disable_device(pci); + return -ENOMEM; + } + chip->card = card; + chip->pci = pci; + chip->irq = -1; + spin_lock_init(&chip->reg_lock); + + if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) { + kfree(chip); + pci_disable_device(pci); + return err; + } + chip->mmio = pci_ioremap_bar(pci, 0); + if (!chip->mmio) { + dev_err(card->dev, "cannot remap io memory\n"); + err = -ENOMEM; + goto fail; + } + + chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | + CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); + chip->interrupt_mask = MY_INTERRUPTS; + snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); + snd_bt87x_writel(chip, REG_INT_MASK, 0); + snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); + + err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, + KBUILD_MODNAME, chip); + if (err < 0) { + dev_err(card->dev, "cannot grab irq %d\n", pci->irq); + goto fail; + } + chip->irq = pci->irq; + pci_set_master(pci); + synchronize_irq(chip->irq); + + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); + if (err < 0) + goto fail; + + *rchip = chip; + return 0; + +fail: + snd_bt87x_free(chip); + return err; +} + +#define BT_DEVICE(chip, subvend, subdev, id) \ + { .vendor = PCI_VENDOR_ID_BROOKTREE, \ + .device = chip, \ + .subvendor = subvend, .subdevice = subdev, \ + .driver_data = SND_BT87X_BOARD_ ## id } +/* driver_data is the card id for that device */ + +static const struct pci_device_id snd_bt87x_ids[] = { + /* Hauppauge WinTV series */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), + /* Hauppauge WinTV series */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), + /* Viewcast Osprey 200 */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), + /* Viewcast Osprey 440 (rate is configurable via gpio) */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), + /* ATI TV-Wonder */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), + /* Leadtek Winfast tv 2000xp delux */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), + /* Pinnacle PCTV */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC), + /* Voodoo TV 200 */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), + /* Askey Computer Corp. MagicTView'99 */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC), + /* AVerMedia Studio No. 103, 203, ...? */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), + /* Prolink PixelView PV-M4900 */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), + /* Pinnacle Studio PCTV rave */ + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), + { } +}; +MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); + +/* cards known not to have audio + * (DVB cards use the audio function to transfer MPEG data) */ +static struct { + unsigned short subvendor, subdevice; +} blacklist[] = { + {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ + {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ + {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ + {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ + {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ + {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ + {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ + {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ + {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ + {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ + {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ +}; + +static struct pci_driver driver; + +/* return the id of the card, or a negative value if it's blacklisted */ +static int snd_bt87x_detect_card(struct pci_dev *pci) +{ + int i; + const struct pci_device_id *supported; + + supported = pci_match_id(snd_bt87x_ids, pci); + if (supported && supported->driver_data > 0) + return supported->driver_data; + + for (i = 0; i < ARRAY_SIZE(blacklist); ++i) + if (blacklist[i].subvendor == pci->subsystem_vendor && + blacklist[i].subdevice == pci->subsystem_device) { + dev_dbg(&pci->dev, + "card %#04x-%#04x:%#04x has no audio\n", + pci->device, pci->subsystem_vendor, pci->subsystem_device); + return -EBUSY; + } + + dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n", + pci->device, pci->subsystem_vendor, pci->subsystem_device); + dev_info(&pci->dev, "please mail id, board name, and, " + "if it works, the correct digital_rate option to " + "<alsa-devel@alsa-project.org>\n"); + return SND_BT87X_BOARD_UNKNOWN; +} + +static int snd_bt87x_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) +{ + static int dev; + struct snd_card *card; + struct snd_bt87x *chip; + int err; + enum snd_bt87x_boardid boardid; + + if (!pci_id->driver_data) { + err = snd_bt87x_detect_card(pci); + if (err < 0) + return -ENODEV; + boardid = err; + } else + boardid = pci_id->driver_data; + + if (dev >= SNDRV_CARDS) + return -ENODEV; + if (!enable[dev]) { + ++dev; + return -ENOENT; + } + + err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, + 0, &card); + if (err < 0) + return err; + + err = snd_bt87x_create(card, pci, &chip); + if (err < 0) + goto _error; + + memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); + + if (!chip->board.no_digital) { + if (digital_rate[dev] > 0) + chip->board.dig_rate = digital_rate[dev]; + + chip->reg_control |= chip->board.digital_fmt; + + err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); + if (err < 0) + goto _error; + } + if (!chip->board.no_analog) { + err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); + if (err < 0) + goto _error; + err = snd_ctl_add(card, snd_ctl_new1( + &snd_bt87x_capture_volume, chip)); + if (err < 0) + goto _error; + err = snd_ctl_add(card, snd_ctl_new1( + &snd_bt87x_capture_boost, chip)); + if (err < 0) + goto _error; + err = snd_ctl_add(card, snd_ctl_new1( + &snd_bt87x_capture_source, chip)); + if (err < 0) + goto _error; + } + dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital " + "(rate %d Hz)\n", dev, boardid, + chip->board.no_analog ? "no " : "", + chip->board.no_digital ? "no " : "", chip->board.dig_rate); + + strcpy(card->driver, "Bt87x"); + sprintf(card->shortname, "Brooktree Bt%x", pci->device); + sprintf(card->longname, "%s at %#llx, irq %i", + card->shortname, (unsigned long long)pci_resource_start(pci, 0), + chip->irq); + strcpy(card->mixername, "Bt87x"); + + err = snd_card_register(card); + if (err < 0) + goto _error; + + pci_set_drvdata(pci, card); + ++dev; + return 0; + +_error: + snd_card_free(card); + return err; +} + +static void snd_bt87x_remove(struct pci_dev *pci) +{ + snd_card_free(pci_get_drvdata(pci)); +} + +/* default entries for all Bt87x cards - it's not exported */ +/* driver_data is set to 0 to call detection */ +static const struct pci_device_id snd_bt87x_default_ids[] = { + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), + BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), + { } +}; + +static struct pci_driver driver = { + .name = KBUILD_MODNAME, + .id_table = snd_bt87x_ids, + .probe = snd_bt87x_probe, + .remove = snd_bt87x_remove, +}; + +static int __init alsa_card_bt87x_init(void) +{ + if (load_all) + driver.id_table = snd_bt87x_default_ids; + return pci_register_driver(&driver); +} + +static void __exit alsa_card_bt87x_exit(void) +{ + pci_unregister_driver(&driver); +} + +module_init(alsa_card_bt87x_init) +module_exit(alsa_card_bt87x_exit) |