diff options
Diffstat (limited to 'sound/pci/oxygen/oxygen_pcm.c')
| -rw-r--r-- | sound/pci/oxygen/oxygen_pcm.c | 807 |
1 files changed, 807 insertions, 0 deletions
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c new file mode 100644 index 000000000..042a2439f --- /dev/null +++ b/sound/pci/oxygen/oxygen_pcm.c @@ -0,0 +1,807 @@ +/* + * C-Media CMI8788 driver - PCM code + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * + * + * This driver is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2. + * + * 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 driver; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/pci.h> +#include <sound/control.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include "oxygen.h" + +/* most DMA channels have a 16-bit counter for 32-bit words */ +#define BUFFER_BYTES_MAX ((1 << 16) * 4) +/* the multichannel DMA channel has a 24-bit counter */ +#define BUFFER_BYTES_MAX_MULTICH ((1 << 24) * 4) + +#define FIFO_BYTES 256 +#define FIFO_BYTES_MULTICH 1024 + +#define PERIOD_BYTES_MIN 64 + +#define DEFAULT_BUFFER_BYTES (BUFFER_BYTES_MAX / 2) +#define DEFAULT_BUFFER_BYTES_MULTICH (1024 * 1024) + +static const struct snd_pcm_hardware oxygen_stereo_hardware = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_SYNC_START | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .rates = SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_64000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_176400 | + SNDRV_PCM_RATE_192000, + .rate_min = 32000, + .rate_max = 192000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = BUFFER_BYTES_MAX, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = BUFFER_BYTES_MAX, + .periods_min = 1, + .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, + .fifo_size = FIFO_BYTES, +}; +static const struct snd_pcm_hardware oxygen_multichannel_hardware = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_SYNC_START | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .rates = SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_64000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_176400 | + SNDRV_PCM_RATE_192000, + .rate_min = 32000, + .rate_max = 192000, + .channels_min = 2, + .channels_max = 8, + .buffer_bytes_max = BUFFER_BYTES_MAX_MULTICH, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = BUFFER_BYTES_MAX_MULTICH, + .periods_min = 1, + .periods_max = BUFFER_BYTES_MAX_MULTICH / PERIOD_BYTES_MIN, + .fifo_size = FIFO_BYTES_MULTICH, +}; +static const struct snd_pcm_hardware oxygen_ac97_hardware = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_SYNC_START | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = BUFFER_BYTES_MAX, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = BUFFER_BYTES_MAX, + .periods_min = 1, + .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, + .fifo_size = FIFO_BYTES, +}; + +static const struct snd_pcm_hardware *const oxygen_hardware[PCM_COUNT] = { + [PCM_A] = &oxygen_stereo_hardware, + [PCM_B] = &oxygen_stereo_hardware, + [PCM_C] = &oxygen_stereo_hardware, + [PCM_SPDIF] = &oxygen_stereo_hardware, + [PCM_MULTICH] = &oxygen_multichannel_hardware, + [PCM_AC97] = &oxygen_ac97_hardware, +}; + +static inline unsigned int +oxygen_substream_channel(struct snd_pcm_substream *substream) +{ + return (unsigned int)(uintptr_t)substream->runtime->private_data; +} + +static int oxygen_open(struct snd_pcm_substream *substream, + unsigned int channel) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + runtime->private_data = (void *)(uintptr_t)channel; + if (channel == PCM_B && chip->has_ac97_1 && + (chip->model.device_config & CAPTURE_2_FROM_AC97_1)) + runtime->hw = oxygen_ac97_hardware; + else + runtime->hw = *oxygen_hardware[channel]; + switch (channel) { + case PCM_C: + if (chip->model.device_config & CAPTURE_1_FROM_SPDIF) { + runtime->hw.rates &= ~(SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_64000); + runtime->hw.rate_min = 44100; + } + /* fall through */ + case PCM_A: + case PCM_B: + runtime->hw.fifo_size = 0; + break; + case PCM_MULTICH: + runtime->hw.channels_max = chip->model.dac_channels_pcm; + break; + } + if (chip->model.pcm_hardware_filter) + chip->model.pcm_hardware_filter(channel, &runtime->hw); + err = snd_pcm_hw_constraint_step(runtime, 0, + SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); + if (err < 0) + return err; + err = snd_pcm_hw_constraint_step(runtime, 0, + SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32); + if (err < 0) + return err; + if (runtime->hw.formats & SNDRV_PCM_FMTBIT_S32_LE) { + err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24); + if (err < 0) + return err; + } + if (runtime->hw.channels_max > 2) { + err = snd_pcm_hw_constraint_step(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + 2); + if (err < 0) + return err; + } + snd_pcm_set_sync(substream); + chip->streams[channel] = substream; + + mutex_lock(&chip->mutex); + chip->pcm_active |= 1 << channel; + if (channel == PCM_SPDIF) { + chip->spdif_pcm_bits = chip->spdif_bits; + chip->controls[CONTROL_SPDIF_PCM]->vd[0].access &= + ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; + snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE | + SNDRV_CTL_EVENT_MASK_INFO, + &chip->controls[CONTROL_SPDIF_PCM]->id); + } + mutex_unlock(&chip->mutex); + + return 0; +} + +static int oxygen_rec_a_open(struct snd_pcm_substream *substream) +{ + return oxygen_open(substream, PCM_A); +} + +static int oxygen_rec_b_open(struct snd_pcm_substream *substream) +{ + return oxygen_open(substream, PCM_B); +} + +static int oxygen_rec_c_open(struct snd_pcm_substream *substream) +{ + return oxygen_open(substream, PCM_C); +} + +static int oxygen_spdif_open(struct snd_pcm_substream *substream) +{ + return oxygen_open(substream, PCM_SPDIF); +} + +static int oxygen_multich_open(struct snd_pcm_substream *substream) +{ + return oxygen_open(substream, PCM_MULTICH); +} + +static int oxygen_ac97_open(struct snd_pcm_substream *substream) +{ + return oxygen_open(substream, PCM_AC97); +} + +static int oxygen_close(struct snd_pcm_substream *substream) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + unsigned int channel = oxygen_substream_channel(substream); + + mutex_lock(&chip->mutex); + chip->pcm_active &= ~(1 << channel); + if (channel == PCM_SPDIF) { + chip->controls[CONTROL_SPDIF_PCM]->vd[0].access |= + SNDRV_CTL_ELEM_ACCESS_INACTIVE; + snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE | + SNDRV_CTL_EVENT_MASK_INFO, + &chip->controls[CONTROL_SPDIF_PCM]->id); + } + if (channel == PCM_SPDIF || channel == PCM_MULTICH) + oxygen_update_spdif_source(chip); + mutex_unlock(&chip->mutex); + + chip->streams[channel] = NULL; + return 0; +} + +static unsigned int oxygen_format(struct snd_pcm_hw_params *hw_params) +{ + if (params_format(hw_params) == SNDRV_PCM_FORMAT_S32_LE) + return OXYGEN_FORMAT_24; + else + return OXYGEN_FORMAT_16; +} + +static unsigned int oxygen_rate(struct snd_pcm_hw_params *hw_params) +{ + switch (params_rate(hw_params)) { + case 32000: + return OXYGEN_RATE_32000; + case 44100: + return OXYGEN_RATE_44100; + default: /* 48000 */ + return OXYGEN_RATE_48000; + case 64000: + return OXYGEN_RATE_64000; + case 88200: + return OXYGEN_RATE_88200; + case 96000: + return OXYGEN_RATE_96000; + case 176400: + return OXYGEN_RATE_176400; + case 192000: + return OXYGEN_RATE_192000; + } +} + +static unsigned int oxygen_i2s_bits(struct snd_pcm_hw_params *hw_params) +{ + if (params_format(hw_params) == SNDRV_PCM_FORMAT_S32_LE) + return OXYGEN_I2S_BITS_24; + else + return OXYGEN_I2S_BITS_16; +} + +static unsigned int oxygen_play_channels(struct snd_pcm_hw_params *hw_params) +{ + switch (params_channels(hw_params)) { + default: /* 2 */ + return OXYGEN_PLAY_CHANNELS_2; + case 4: + return OXYGEN_PLAY_CHANNELS_4; + case 6: + return OXYGEN_PLAY_CHANNELS_6; + case 8: + return OXYGEN_PLAY_CHANNELS_8; + } +} + +static const unsigned int channel_base_registers[PCM_COUNT] = { + [PCM_A] = OXYGEN_DMA_A_ADDRESS, + [PCM_B] = OXYGEN_DMA_B_ADDRESS, + [PCM_C] = OXYGEN_DMA_C_ADDRESS, + [PCM_SPDIF] = OXYGEN_DMA_SPDIF_ADDRESS, + [PCM_MULTICH] = OXYGEN_DMA_MULTICH_ADDRESS, + [PCM_AC97] = OXYGEN_DMA_AC97_ADDRESS, +}; + +static int oxygen_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + unsigned int channel = oxygen_substream_channel(substream); + int err; + + err = snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(hw_params)); + if (err < 0) + return err; + + oxygen_write32(chip, channel_base_registers[channel], + (u32)substream->runtime->dma_addr); + if (channel == PCM_MULTICH) { + oxygen_write32(chip, OXYGEN_DMA_MULTICH_COUNT, + params_buffer_bytes(hw_params) / 4 - 1); + oxygen_write32(chip, OXYGEN_DMA_MULTICH_TCOUNT, + params_period_bytes(hw_params) / 4 - 1); + } else { + oxygen_write16(chip, channel_base_registers[channel] + 4, + params_buffer_bytes(hw_params) / 4 - 1); + oxygen_write16(chip, channel_base_registers[channel] + 6, + params_period_bytes(hw_params) / 4 - 1); + } + return 0; +} + +static u16 get_mclk(struct oxygen *chip, unsigned int channel, + struct snd_pcm_hw_params *params) +{ + unsigned int mclks, shift; + + if (channel == PCM_MULTICH) + mclks = chip->model.dac_mclks; + else + mclks = chip->model.adc_mclks; + + if (params_rate(params) <= 48000) + shift = 0; + else if (params_rate(params) <= 96000) + shift = 2; + else + shift = 4; + + return OXYGEN_I2S_MCLK(mclks >> shift); +} + +static int oxygen_rec_a_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + int err; + + err = oxygen_hw_params(substream, hw_params); + if (err < 0) + return err; + + spin_lock_irq(&chip->reg_lock); + oxygen_write8_masked(chip, OXYGEN_REC_FORMAT, + oxygen_format(hw_params) << OXYGEN_REC_FORMAT_A_SHIFT, + OXYGEN_REC_FORMAT_A_MASK); + oxygen_write16_masked(chip, OXYGEN_I2S_A_FORMAT, + oxygen_rate(hw_params) | + chip->model.adc_i2s_format | + get_mclk(chip, PCM_A, hw_params) | + oxygen_i2s_bits(hw_params), + OXYGEN_I2S_RATE_MASK | + OXYGEN_I2S_FORMAT_MASK | + OXYGEN_I2S_MCLK_MASK | + OXYGEN_I2S_BITS_MASK); + spin_unlock_irq(&chip->reg_lock); + + mutex_lock(&chip->mutex); + chip->model.set_adc_params(chip, hw_params); + mutex_unlock(&chip->mutex); + return 0; +} + +static int oxygen_rec_b_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + int is_ac97; + int err; + + err = oxygen_hw_params(substream, hw_params); + if (err < 0) + return err; + + is_ac97 = chip->has_ac97_1 && + (chip->model.device_config & CAPTURE_2_FROM_AC97_1); + + spin_lock_irq(&chip->reg_lock); + oxygen_write8_masked(chip, OXYGEN_REC_FORMAT, + oxygen_format(hw_params) << OXYGEN_REC_FORMAT_B_SHIFT, + OXYGEN_REC_FORMAT_B_MASK); + if (!is_ac97) + oxygen_write16_masked(chip, OXYGEN_I2S_B_FORMAT, + oxygen_rate(hw_params) | + chip->model.adc_i2s_format | + get_mclk(chip, PCM_B, hw_params) | + oxygen_i2s_bits(hw_params), + OXYGEN_I2S_RATE_MASK | + OXYGEN_I2S_FORMAT_MASK | + OXYGEN_I2S_MCLK_MASK | + OXYGEN_I2S_BITS_MASK); + spin_unlock_irq(&chip->reg_lock); + + if (!is_ac97) { + mutex_lock(&chip->mutex); + chip->model.set_adc_params(chip, hw_params); + mutex_unlock(&chip->mutex); + } + return 0; +} + +static int oxygen_rec_c_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + bool is_spdif; + int err; + + err = oxygen_hw_params(substream, hw_params); + if (err < 0) + return err; + + is_spdif = chip->model.device_config & CAPTURE_1_FROM_SPDIF; + + spin_lock_irq(&chip->reg_lock); + oxygen_write8_masked(chip, OXYGEN_REC_FORMAT, + oxygen_format(hw_params) << OXYGEN_REC_FORMAT_C_SHIFT, + OXYGEN_REC_FORMAT_C_MASK); + if (!is_spdif) + oxygen_write16_masked(chip, OXYGEN_I2S_C_FORMAT, + oxygen_rate(hw_params) | + chip->model.adc_i2s_format | + get_mclk(chip, PCM_B, hw_params) | + oxygen_i2s_bits(hw_params), + OXYGEN_I2S_RATE_MASK | + OXYGEN_I2S_FORMAT_MASK | + OXYGEN_I2S_MCLK_MASK | + OXYGEN_I2S_BITS_MASK); + spin_unlock_irq(&chip->reg_lock); + + if (!is_spdif) { + mutex_lock(&chip->mutex); + chip->model.set_adc_params(chip, hw_params); + mutex_unlock(&chip->mutex); + } + return 0; +} + +static int oxygen_spdif_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + int err; + + err = oxygen_hw_params(substream, hw_params); + if (err < 0) + return err; + + mutex_lock(&chip->mutex); + spin_lock_irq(&chip->reg_lock); + oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, + OXYGEN_SPDIF_OUT_ENABLE); + oxygen_write8_masked(chip, OXYGEN_PLAY_FORMAT, + oxygen_format(hw_params) << OXYGEN_SPDIF_FORMAT_SHIFT, + OXYGEN_SPDIF_FORMAT_MASK); + oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL, + oxygen_rate(hw_params) << OXYGEN_SPDIF_OUT_RATE_SHIFT, + OXYGEN_SPDIF_OUT_RATE_MASK); + oxygen_update_spdif_source(chip); + spin_unlock_irq(&chip->reg_lock); + mutex_unlock(&chip->mutex); + return 0; +} + +static int oxygen_multich_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + int err; + + err = oxygen_hw_params(substream, hw_params); + if (err < 0) + return err; + + mutex_lock(&chip->mutex); + spin_lock_irq(&chip->reg_lock); + oxygen_write8_masked(chip, OXYGEN_PLAY_CHANNELS, + oxygen_play_channels(hw_params), + OXYGEN_PLAY_CHANNELS_MASK); + oxygen_write8_masked(chip, OXYGEN_PLAY_FORMAT, + oxygen_format(hw_params) << OXYGEN_MULTICH_FORMAT_SHIFT, + OXYGEN_MULTICH_FORMAT_MASK); + oxygen_write16_masked(chip, OXYGEN_I2S_MULTICH_FORMAT, + oxygen_rate(hw_params) | + chip->model.dac_i2s_format | + get_mclk(chip, PCM_MULTICH, hw_params) | + oxygen_i2s_bits(hw_params), + OXYGEN_I2S_RATE_MASK | + OXYGEN_I2S_FORMAT_MASK | + OXYGEN_I2S_MCLK_MASK | + OXYGEN_I2S_BITS_MASK); + oxygen_update_spdif_source(chip); + spin_unlock_irq(&chip->reg_lock); + + chip->model.set_dac_params(chip, hw_params); + oxygen_update_dac_routing(chip); + mutex_unlock(&chip->mutex); + return 0; +} + +static int oxygen_hw_free(struct snd_pcm_substream *substream) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + unsigned int channel = oxygen_substream_channel(substream); + unsigned int channel_mask = 1 << channel; + + spin_lock_irq(&chip->reg_lock); + chip->interrupt_mask &= ~channel_mask; + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); + + oxygen_set_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask); + oxygen_clear_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask); + spin_unlock_irq(&chip->reg_lock); + + return snd_pcm_lib_free_pages(substream); +} + +static int oxygen_spdif_hw_free(struct snd_pcm_substream *substream) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + + spin_lock_irq(&chip->reg_lock); + oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, + OXYGEN_SPDIF_OUT_ENABLE); + spin_unlock_irq(&chip->reg_lock); + return oxygen_hw_free(substream); +} + +static int oxygen_prepare(struct snd_pcm_substream *substream) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + unsigned int channel = oxygen_substream_channel(substream); + unsigned int channel_mask = 1 << channel; + + spin_lock_irq(&chip->reg_lock); + oxygen_set_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask); + oxygen_clear_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask); + + if (substream->runtime->no_period_wakeup) + chip->interrupt_mask &= ~channel_mask; + else + chip->interrupt_mask |= channel_mask; + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); + spin_unlock_irq(&chip->reg_lock); + return 0; +} + +static int oxygen_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_substream *s; + unsigned int mask = 0; + int pausing; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_SUSPEND: + pausing = 0; + break; + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + pausing = 1; + break; + default: + return -EINVAL; + } + + snd_pcm_group_for_each_entry(s, substream) { + if (snd_pcm_substream_chip(s) == chip) { + mask |= 1 << oxygen_substream_channel(s); + snd_pcm_trigger_done(s, substream); + } + } + + spin_lock(&chip->reg_lock); + if (!pausing) { + if (cmd == SNDRV_PCM_TRIGGER_START) + chip->pcm_running |= mask; + else + chip->pcm_running &= ~mask; + oxygen_write8(chip, OXYGEN_DMA_STATUS, chip->pcm_running); + } else { + if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH) + oxygen_set_bits8(chip, OXYGEN_DMA_PAUSE, mask); + else + oxygen_clear_bits8(chip, OXYGEN_DMA_PAUSE, mask); + } + spin_unlock(&chip->reg_lock); + return 0; +} + +static snd_pcm_uframes_t oxygen_pointer(struct snd_pcm_substream *substream) +{ + struct oxygen *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + unsigned int channel = oxygen_substream_channel(substream); + u32 curr_addr; + + /* no spinlock, this read should be atomic */ + curr_addr = oxygen_read32(chip, channel_base_registers[channel]); + return bytes_to_frames(runtime, curr_addr - (u32)runtime->dma_addr); +} + +static const struct snd_pcm_ops oxygen_rec_a_ops = { + .open = oxygen_rec_a_open, + .close = oxygen_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = oxygen_rec_a_hw_params, + .hw_free = oxygen_hw_free, + .prepare = oxygen_prepare, + .trigger = oxygen_trigger, + .pointer = oxygen_pointer, +}; + +static const struct snd_pcm_ops oxygen_rec_b_ops = { + .open = oxygen_rec_b_open, + .close = oxygen_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = oxygen_rec_b_hw_params, + .hw_free = oxygen_hw_free, + .prepare = oxygen_prepare, + .trigger = oxygen_trigger, + .pointer = oxygen_pointer, +}; + +static const struct snd_pcm_ops oxygen_rec_c_ops = { + .open = oxygen_rec_c_open, + .close = oxygen_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = oxygen_rec_c_hw_params, + .hw_free = oxygen_hw_free, + .prepare = oxygen_prepare, + .trigger = oxygen_trigger, + .pointer = oxygen_pointer, +}; + +static const struct snd_pcm_ops oxygen_spdif_ops = { + .open = oxygen_spdif_open, + .close = oxygen_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = oxygen_spdif_hw_params, + .hw_free = oxygen_spdif_hw_free, + .prepare = oxygen_prepare, + .trigger = oxygen_trigger, + .pointer = oxygen_pointer, +}; + +static const struct snd_pcm_ops oxygen_multich_ops = { + .open = oxygen_multich_open, + .close = oxygen_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = oxygen_multich_hw_params, + .hw_free = oxygen_hw_free, + .prepare = oxygen_prepare, + .trigger = oxygen_trigger, + .pointer = oxygen_pointer, +}; + +static const struct snd_pcm_ops oxygen_ac97_ops = { + .open = oxygen_ac97_open, + .close = oxygen_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = oxygen_hw_params, + .hw_free = oxygen_hw_free, + .prepare = oxygen_prepare, + .trigger = oxygen_trigger, + .pointer = oxygen_pointer, +}; + +int oxygen_pcm_init(struct oxygen *chip) +{ + struct snd_pcm *pcm; + int outs, ins; + int err; + + outs = !!(chip->model.device_config & PLAYBACK_0_TO_I2S); + ins = !!(chip->model.device_config & (CAPTURE_0_FROM_I2S_1 | + CAPTURE_0_FROM_I2S_2)); + if (outs | ins) { + err = snd_pcm_new(chip->card, "Multichannel", + 0, outs, ins, &pcm); + if (err < 0) + return err; + if (outs) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &oxygen_multich_ops); + if (chip->model.device_config & CAPTURE_0_FROM_I2S_1) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &oxygen_rec_a_ops); + else if (chip->model.device_config & CAPTURE_0_FROM_I2S_2) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &oxygen_rec_b_ops); + pcm->private_data = chip; + strcpy(pcm->name, "Multichannel"); + if (outs) + snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream, + SNDRV_DMA_TYPE_DEV, + snd_dma_pci_data(chip->pci), + DEFAULT_BUFFER_BYTES_MULTICH, + BUFFER_BYTES_MAX_MULTICH); + if (ins) + snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, + SNDRV_DMA_TYPE_DEV, + snd_dma_pci_data(chip->pci), + DEFAULT_BUFFER_BYTES, + BUFFER_BYTES_MAX); + } + + outs = !!(chip->model.device_config & PLAYBACK_1_TO_SPDIF); + ins = !!(chip->model.device_config & CAPTURE_1_FROM_SPDIF); + if (outs | ins) { + err = snd_pcm_new(chip->card, "Digital", 1, outs, ins, &pcm); + if (err < 0) + return err; + if (outs) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &oxygen_spdif_ops); + if (ins) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &oxygen_rec_c_ops); + pcm->private_data = chip; + strcpy(pcm->name, "Digital"); + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + snd_dma_pci_data(chip->pci), + DEFAULT_BUFFER_BYTES, + BUFFER_BYTES_MAX); + } + + if (chip->has_ac97_1) { + outs = !!(chip->model.device_config & PLAYBACK_2_TO_AC97_1); + ins = !!(chip->model.device_config & CAPTURE_2_FROM_AC97_1); + } else { + outs = 0; + ins = !!(chip->model.device_config & CAPTURE_2_FROM_I2S_2); + } + if (outs | ins) { + err = snd_pcm_new(chip->card, outs ? "AC97" : "Analog2", + 2, outs, ins, &pcm); + if (err < 0) + return err; + if (outs) { + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &oxygen_ac97_ops); + oxygen_write8_masked(chip, OXYGEN_REC_ROUTING, + OXYGEN_REC_B_ROUTE_AC97_1, + OXYGEN_REC_B_ROUTE_MASK); + } + if (ins) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &oxygen_rec_b_ops); + pcm->private_data = chip; + strcpy(pcm->name, outs ? "Front Panel" : "Analog 2"); + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + snd_dma_pci_data(chip->pci), + DEFAULT_BUFFER_BYTES, + BUFFER_BYTES_MAX); + } + + ins = !!(chip->model.device_config & CAPTURE_3_FROM_I2S_3); + if (ins) { + err = snd_pcm_new(chip->card, "Analog3", 3, 0, ins, &pcm); + if (err < 0) + return err; + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &oxygen_rec_c_ops); + oxygen_write8_masked(chip, OXYGEN_REC_ROUTING, + OXYGEN_REC_C_ROUTE_I2S_ADC_3, + OXYGEN_REC_C_ROUTE_MASK); + pcm->private_data = chip; + strcpy(pcm->name, "Analog 3"); + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + snd_dma_pci_data(chip->pci), + DEFAULT_BUFFER_BYTES, + BUFFER_BYTES_MAX); + } + return 0; +} |