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 void oxygen_spdif_input_bits_changed(struct work_struct *work) { struct oxygen *chip = container_of(work, struct oxygen, spdif_input_bits_work); u32 reg; /* * This function gets called when there is new activity on the SPDIF * input, or when we lose lock on the input signal, or when the rate * changes. */ msleep(1); spin_lock_irq(&chip->reg_lock); reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); if ((reg & (OXYGEN_SPDIF_SENSE_STATUS | OXYGEN_SPDIF_LOCK_STATUS)) == OXYGEN_SPDIF_SENSE_STATUS) { /* * If we detect activity on the SPDIF input but cannot lock to * a signal, the clock bit is likely to be wrong. */ reg ^= OXYGEN_SPDIF_IN_CLOCK_MASK; oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg); spin_unlock_irq(&chip->reg_lock); msleep(1); spin_lock_irq(&chip->reg_lock); reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); if ((reg & (OXYGEN_SPDIF_SENSE_STATUS | OXYGEN_SPDIF_LOCK_STATUS)) == OXYGEN_SPDIF_SENSE_STATUS) { /* nothing detected with either clock; give up */ if ((reg & OXYGEN_SPDIF_IN_CLOCK_MASK) == OXYGEN_SPDIF_IN_CLOCK_192) { /* * Reset clock to <= 96 kHz because this is * more likely to be received next time. */ reg &= ~OXYGEN_SPDIF_IN_CLOCK_MASK; reg |= OXYGEN_SPDIF_IN_CLOCK_96; oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg); } } } spin_unlock_irq(&chip->reg_lock); if (chip->controls[CONTROL_SPDIF_INPUT_BITS]) { spin_lock_irq(&chip->reg_lock); chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_DETECT; oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); spin_unlock_irq(&chip->reg_lock); /* * We don't actually know that any channel status bits have * changed, but let's send a notification just to be sure. */ snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->controls[CONTROL_SPDIF_INPUT_BITS]->id); } }
static void oxygen_spdif_input_bits_changed(struct work_struct *work) { struct oxygen *chip = container_of(work, struct oxygen, spdif_input_bits_work); u32 reg; msleep(1); spin_lock_irq(&chip->reg_lock); reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); if ((reg & (OXYGEN_SPDIF_SENSE_STATUS | OXYGEN_SPDIF_LOCK_STATUS)) == OXYGEN_SPDIF_SENSE_STATUS) { reg ^= OXYGEN_SPDIF_IN_CLOCK_MASK; oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg); spin_unlock_irq(&chip->reg_lock); msleep(1); spin_lock_irq(&chip->reg_lock); reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); if ((reg & (OXYGEN_SPDIF_SENSE_STATUS | OXYGEN_SPDIF_LOCK_STATUS)) == OXYGEN_SPDIF_SENSE_STATUS) { if ((reg & OXYGEN_SPDIF_IN_CLOCK_MASK) == OXYGEN_SPDIF_IN_CLOCK_192) { reg &= ~OXYGEN_SPDIF_IN_CLOCK_MASK; reg |= OXYGEN_SPDIF_IN_CLOCK_96; oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg); } } } spin_unlock_irq(&chip->reg_lock); if (chip->controls[CONTROL_SPDIF_INPUT_BITS]) { spin_lock_irq(&chip->reg_lock); chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_DETECT; oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); spin_unlock_irq(&chip->reg_lock); snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->controls[CONTROL_SPDIF_INPUT_BITS]->id); } }
static irqreturn_t oxygen_interrupt(int dummy, void *dev_id) { struct oxygen *chip = dev_id; unsigned int status, clear, elapsed_streams, i; status = oxygen_read16(chip, OXYGEN_INTERRUPT_STATUS); if (!status) return IRQ_NONE; spin_lock(&chip->reg_lock); clear = status & (OXYGEN_CHANNEL_A | OXYGEN_CHANNEL_B | OXYGEN_CHANNEL_C | OXYGEN_CHANNEL_SPDIF | OXYGEN_CHANNEL_MULTICH | OXYGEN_CHANNEL_AC97 | OXYGEN_INT_SPDIF_IN_DETECT | OXYGEN_INT_GPIO | OXYGEN_INT_AC97); if (clear) { if (clear & OXYGEN_INT_SPDIF_IN_DETECT) chip->interrupt_mask &= ~OXYGEN_INT_SPDIF_IN_DETECT; oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask & ~clear); oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); } elapsed_streams = status & chip->pcm_running; spin_unlock(&chip->reg_lock); for (i = 0; i < PCM_COUNT; ++i) if ((elapsed_streams & (1 << i)) && chip->streams[i]) snd_pcm_period_elapsed(chip->streams[i]); if (status & OXYGEN_INT_SPDIF_IN_DETECT) { spin_lock(&chip->reg_lock); i = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); if (i & (OXYGEN_SPDIF_SENSE_INT | OXYGEN_SPDIF_LOCK_INT | OXYGEN_SPDIF_RATE_INT)) { /* write the interrupt bit(s) to clear */ oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, i); schedule_work(&chip->spdif_input_bits_work); } spin_unlock(&chip->reg_lock); } if (status & OXYGEN_INT_GPIO) schedule_work(&chip->gpio_work); if (status & OXYGEN_INT_MIDI) { if (chip->midi) snd_mpu401_uart_interrupt(0, chip->midi->private_data); else oxygen_read_uart(chip); } if (status & OXYGEN_INT_AC97) wake_up(&chip->ac97_waitqueue); return IRQ_HANDLED; }
static void oxygen_init(struct oxygen *chip) { unsigned int i; chip->dac_routing = 1; for (i = 0; i < 8; ++i) chip->dac_volume[i] = chip->model.dac_volume_min; chip->dac_mute = 1; chip->spdif_playback_enable = 1; chip->spdif_bits = OXYGEN_SPDIF_C | OXYGEN_SPDIF_ORIGINAL | (IEC958_AES1_CON_PCM_CODER << OXYGEN_SPDIF_CATEGORY_SHIFT); chip->spdif_pcm_bits = chip->spdif_bits; if (oxygen_read8(chip, OXYGEN_REVISION) & OXYGEN_REVISION_2) chip->revision = 2; else chip->revision = 1; if (chip->revision == 1) oxygen_set_bits8(chip, OXYGEN_MISC, OXYGEN_MISC_PCI_MEM_W_1_CLOCK); i = oxygen_read16(chip, OXYGEN_AC97_CONTROL); chip->has_ac97_0 = (i & OXYGEN_AC97_CODEC_0) != 0; chip->has_ac97_1 = (i & OXYGEN_AC97_CODEC_1) != 0; oxygen_write8_masked(chip, OXYGEN_FUNCTION, OXYGEN_FUNCTION_RESET_CODEC | chip->model.function_flags, OXYGEN_FUNCTION_RESET_CODEC | OXYGEN_FUNCTION_2WIRE_SPI_MASK | OXYGEN_FUNCTION_ENABLE_SPI_4_5); oxygen_write8(chip, OXYGEN_DMA_STATUS, 0); oxygen_write8(chip, OXYGEN_DMA_PAUSE, 0); oxygen_write8(chip, OXYGEN_PLAY_CHANNELS, OXYGEN_PLAY_CHANNELS_2 | OXYGEN_DMA_A_BURST_8 | OXYGEN_DMA_MULTICH_BURST_8); oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); oxygen_write8_masked(chip, OXYGEN_MISC, chip->model.misc_flags, OXYGEN_MISC_WRITE_PCI_SUBID | OXYGEN_MISC_REC_C_FROM_SPDIF | OXYGEN_MISC_REC_B_FROM_AC97 | OXYGEN_MISC_REC_A_FROM_MULTICH | OXYGEN_MISC_MIDI); oxygen_write8(chip, OXYGEN_REC_FORMAT, (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_A_SHIFT) | (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_B_SHIFT) | (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_C_SHIFT)); oxygen_write8(chip, OXYGEN_PLAY_FORMAT, (OXYGEN_FORMAT_16 << OXYGEN_SPDIF_FORMAT_SHIFT) | (OXYGEN_FORMAT_16 << OXYGEN_MULTICH_FORMAT_SHIFT)); oxygen_write8(chip, OXYGEN_REC_CHANNELS, OXYGEN_REC_CHANNELS_2_2_2); oxygen_write16(chip, OXYGEN_I2S_MULTICH_FORMAT, OXYGEN_RATE_48000 | chip->model.dac_i2s_format | OXYGEN_I2S_MCLK_256 | OXYGEN_I2S_BITS_16 | OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); if (chip->model.device_config & CAPTURE_0_FROM_I2S_1) oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, OXYGEN_RATE_48000 | chip->model.adc_i2s_format | OXYGEN_I2S_MCLK_256 | OXYGEN_I2S_BITS_16 | OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); else oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, OXYGEN_I2S_MASTER | OXYGEN_I2S_MUTE_MCLK); if (chip->model.device_config & (CAPTURE_0_FROM_I2S_2 | CAPTURE_2_FROM_I2S_2)) oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, OXYGEN_RATE_48000 | chip->model.adc_i2s_format | OXYGEN_I2S_MCLK_256 | OXYGEN_I2S_BITS_16 | OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); else oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, OXYGEN_I2S_MASTER | OXYGEN_I2S_MUTE_MCLK); oxygen_write16(chip, OXYGEN_I2S_C_FORMAT, OXYGEN_I2S_MASTER | OXYGEN_I2S_MUTE_MCLK); oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, OXYGEN_SPDIF_OUT_ENABLE | OXYGEN_SPDIF_LOOPBACK); if (chip->model.device_config & CAPTURE_1_FROM_SPDIF) oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL, OXYGEN_SPDIF_SENSE_MASK | OXYGEN_SPDIF_LOCK_MASK | OXYGEN_SPDIF_RATE_MASK | OXYGEN_SPDIF_LOCK_PAR | OXYGEN_SPDIF_IN_CLOCK_96, OXYGEN_SPDIF_SENSE_MASK | OXYGEN_SPDIF_LOCK_MASK | OXYGEN_SPDIF_RATE_MASK | OXYGEN_SPDIF_SENSE_PAR | OXYGEN_SPDIF_LOCK_PAR | OXYGEN_SPDIF_IN_CLOCK_MASK); else oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, OXYGEN_SPDIF_SENSE_MASK | OXYGEN_SPDIF_LOCK_MASK | OXYGEN_SPDIF_RATE_MASK); oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS, chip->spdif_bits); oxygen_write16(chip, OXYGEN_2WIRE_BUS_STATUS, OXYGEN_2WIRE_LENGTH_8 | OXYGEN_2WIRE_INTERRUPT_MASK | OXYGEN_2WIRE_SPEED_STANDARD); oxygen_clear_bits8(chip, OXYGEN_MPU401_CONTROL, OXYGEN_MPU401_LOOPBACK); oxygen_write8(chip, OXYGEN_GPI_INTERRUPT_MASK, 0); oxygen_write16(chip, OXYGEN_GPIO_INTERRUPT_MASK, 0); oxygen_write16(chip, OXYGEN_PLAY_ROUTING, OXYGEN_PLAY_MULTICH_I2S_DAC | OXYGEN_PLAY_SPDIF_SPDIF | (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) | (1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) | (2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) | (3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT)); oxygen_write8(chip, OXYGEN_REC_ROUTING, OXYGEN_REC_A_ROUTE_I2S_ADC_1 | OXYGEN_REC_B_ROUTE_I2S_ADC_2 | OXYGEN_REC_C_ROUTE_SPDIF); oxygen_write8(chip, OXYGEN_ADC_MONITOR, 0); oxygen_write8(chip, OXYGEN_A_MONITOR_ROUTING, (0 << OXYGEN_A_MONITOR_ROUTE_0_SHIFT) | (1 << OXYGEN_A_MONITOR_ROUTE_1_SHIFT) | (2 << OXYGEN_A_MONITOR_ROUTE_2_SHIFT) | (3 << OXYGEN_A_MONITOR_ROUTE_3_SHIFT)); if (chip->has_ac97_0 | chip->has_ac97_1) oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, OXYGEN_AC97_INT_READ_DONE | OXYGEN_AC97_INT_WRITE_DONE); else oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 0); oxygen_write32(chip, OXYGEN_AC97_OUT_CONFIG, 0); oxygen_write32(chip, OXYGEN_AC97_IN_CONFIG, 0); if (!(chip->has_ac97_0 | chip->has_ac97_1)) oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL, OXYGEN_AC97_CLOCK_DISABLE); if (!chip->has_ac97_0) { oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL, OXYGEN_AC97_NO_CODEC_0); } else { oxygen_write_ac97(chip, 0, AC97_RESET, 0); msleep(1); oxygen_ac97_set_bits(chip, 0, CM9780_GPIO_SETUP, CM9780_GPIO0IO | CM9780_GPIO1IO); oxygen_ac97_set_bits(chip, 0, CM9780_MIXER, CM9780_BSTSEL | CM9780_STRO_MIC | CM9780_MIX2FR | CM9780_PCBSW); oxygen_ac97_set_bits(chip, 0, CM9780_JACK, CM9780_RSOE | CM9780_CBOE | CM9780_SSOE | CM9780_FROE | CM9780_MIC2MIC | CM9780_LI2LI); oxygen_write_ac97(chip, 0, AC97_MASTER, 0x0000); oxygen_write_ac97(chip, 0, AC97_PC_BEEP, 0x8000); oxygen_write_ac97(chip, 0, AC97_MIC, 0x8808); oxygen_write_ac97(chip, 0, AC97_LINE, 0x0808); oxygen_write_ac97(chip, 0, AC97_CD, 0x8808); oxygen_write_ac97(chip, 0, AC97_VIDEO, 0x8808); oxygen_write_ac97(chip, 0, AC97_AUX, 0x8808); oxygen_write_ac97(chip, 0, AC97_REC_GAIN, 0x8000); oxygen_write_ac97(chip, 0, AC97_CENTER_LFE_MASTER, 0x8080); oxygen_write_ac97(chip, 0, AC97_SURROUND_MASTER, 0x8080); oxygen_ac97_clear_bits(chip, 0, CM9780_GPIO_STATUS, CM9780_GPO0); /* power down unused ADCs and DACs */ oxygen_ac97_set_bits(chip, 0, AC97_POWERDOWN, AC97_PD_PR0 | AC97_PD_PR1); oxygen_ac97_set_bits(chip, 0, AC97_EXTENDED_STATUS, AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK); } if (chip->has_ac97_1) { oxygen_set_bits32(chip, OXYGEN_AC97_OUT_CONFIG, OXYGEN_AC97_CODEC1_SLOT3 | OXYGEN_AC97_CODEC1_SLOT4); oxygen_write_ac97(chip, 1, AC97_RESET, 0); msleep(1); oxygen_write_ac97(chip, 1, AC97_MASTER, 0x0000); oxygen_write_ac97(chip, 1, AC97_HEADPHONE, 0x8000); oxygen_write_ac97(chip, 1, AC97_PC_BEEP, 0x8000); oxygen_write_ac97(chip, 1, AC97_MIC, 0x8808); oxygen_write_ac97(chip, 1, AC97_LINE, 0x8808); oxygen_write_ac97(chip, 1, AC97_CD, 0x8808); oxygen_write_ac97(chip, 1, AC97_VIDEO, 0x8808); oxygen_write_ac97(chip, 1, AC97_AUX, 0x8808); oxygen_write_ac97(chip, 1, AC97_PCM, 0x0808); oxygen_write_ac97(chip, 1, AC97_REC_SEL, 0x0000); oxygen_write_ac97(chip, 1, AC97_REC_GAIN, 0x0000); oxygen_ac97_set_bits(chip, 1, 0x6a, 0x0040); } }