| /* |
| * C-Media CMI8788 driver - main driver module |
| * |
| * 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/delay.h> |
| #include <linux/interrupt.h> |
| #include <linux/mutex.h> |
| #include <linux/pci.h> |
| #include <sound/ac97_codec.h> |
| #include <sound/asoundef.h> |
| #include <sound/core.h> |
| #include <sound/info.h> |
| #include <sound/mpu401.h> |
| #include <sound/pcm.h> |
| #include "oxygen.h" |
| #include "cm9780.h" |
| |
| MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); |
| MODULE_DESCRIPTION("C-Media CMI8788 helper library"); |
| MODULE_LICENSE("GPL"); |
| |
| |
| 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); |
| 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_RATE_INT) { |
| oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, i); |
| schedule_work(&chip->spdif_input_bits_work); |
| } |
| spin_unlock(&chip->reg_lock); |
| } |
| |
| if (status & OXYGEN_INT_GPIO) |
| ; |
| |
| if ((status & OXYGEN_INT_MIDI) && chip->midi) |
| snd_mpu401_uart_interrupt(0, chip->midi->private_data); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static void oxygen_spdif_input_bits_changed(struct work_struct *work) |
| { |
| struct oxygen *chip = container_of(work, struct oxygen, |
| spdif_input_bits_work); |
| |
| spin_lock_irq(&chip->reg_lock); |
| oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL, |
| OXYGEN_SPDIF_IN_CLOCK_96, |
| OXYGEN_SPDIF_IN_CLOCK_MASK); |
| spin_unlock_irq(&chip->reg_lock); |
| msleep(1); |
| if (!(oxygen_read32(chip, OXYGEN_SPDIF_CONTROL) |
| & OXYGEN_SPDIF_LOCK_STATUS)) { |
| spin_lock_irq(&chip->reg_lock); |
| oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL, |
| OXYGEN_SPDIF_IN_CLOCK_192, |
| OXYGEN_SPDIF_IN_CLOCK_MASK); |
| spin_unlock_irq(&chip->reg_lock); |
| msleep(1); |
| if (!(oxygen_read32(chip, OXYGEN_SPDIF_CONTROL) |
| & OXYGEN_SPDIF_LOCK_STATUS)) { |
| spin_lock_irq(&chip->reg_lock); |
| oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL, |
| OXYGEN_SPDIF_IN_CLOCK_96, |
| OXYGEN_SPDIF_IN_CLOCK_MASK); |
| 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); |
| } |
| } |
| |
| #ifdef CONFIG_PROC_FS |
| static void oxygen_proc_read(struct snd_info_entry *entry, |
| struct snd_info_buffer *buffer) |
| { |
| struct oxygen *chip = entry->private_data; |
| int i, j; |
| |
| snd_iprintf(buffer, "CMI8788\n\n"); |
| for (i = 0; i < 0x100; i += 0x10) { |
| snd_iprintf(buffer, "%02x:", i); |
| for (j = 0; j < 0x10; ++j) |
| snd_iprintf(buffer, " %02x", oxygen_read8(chip, i + j)); |
| snd_iprintf(buffer, "\n"); |
| } |
| if (mutex_lock_interruptible(&chip->mutex) < 0) |
| return; |
| if (chip->has_ac97_0) { |
| snd_iprintf(buffer, "\nAC97\n"); |
| for (i = 0; i < 0x80; i += 0x10) { |
| snd_iprintf(buffer, "%02x:", i); |
| for (j = 0; j < 0x10; j += 2) |
| snd_iprintf(buffer, " %04x", |
| oxygen_read_ac97(chip, 0, i + j)); |
| snd_iprintf(buffer, "\n"); |
| } |
| } |
| if (chip->has_ac97_1) { |
| snd_iprintf(buffer, "\nAC97 2\n"); |
| for (i = 0; i < 0x80; i += 0x10) { |
| snd_iprintf(buffer, "%02x:", i); |
| for (j = 0; j < 0x10; j += 2) |
| snd_iprintf(buffer, " %04x", |
| oxygen_read_ac97(chip, 1, i + j)); |
| snd_iprintf(buffer, "\n"); |
| } |
| } |
| mutex_unlock(&chip->mutex); |
| } |
| |
| static void __devinit oxygen_proc_init(struct oxygen *chip) |
| { |
| struct snd_info_entry *entry; |
| |
| if (!snd_card_proc_new(chip->card, "cmi8788", &entry)) |
| snd_info_set_text_ops(entry, chip, oxygen_proc_read); |
| } |
| #else |
| #define oxygen_proc_init(chip) |
| #endif |
| |
| static void __devinit oxygen_init(struct oxygen *chip) |
| { |
| unsigned int i; |
| |
| chip->dac_routing = 1; |
| for (i = 0; i < 8; ++i) |
| chip->dac_volume[i] = 0xff; |
| 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_set_bits8(chip, OXYGEN_FUNCTION, |
| OXYGEN_FUNCTION_RESET_CODEC | |
| chip->model->function_flags); |
| oxygen_write16(chip, OXYGEN_I2S_MULTICH_FORMAT, |
| OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST | |
| OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 | |
| OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); |
| oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, |
| OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST | |
| OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 | |
| OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); |
| oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, |
| OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST | |
| OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 | |
| OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); |
| oxygen_write16(chip, OXYGEN_I2S_C_FORMAT, |
| OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST | |
| OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 | |
| OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); |
| oxygen_set_bits32(chip, OXYGEN_SPDIF_CONTROL, OXYGEN_SPDIF_RATE_MASK); |
| oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS, chip->spdif_bits); |
| 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_AC97_1 | |
| 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)); |
| |
| oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); |
| oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); |
| |
| oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 0); |
| if (chip->has_ac97_0) { |
| oxygen_clear_bits16(chip, OXYGEN_AC97_OUT_CONFIG, |
| OXYGEN_AC97_CODEC0_FRONTL | |
| OXYGEN_AC97_CODEC0_FRONTR | |
| OXYGEN_AC97_CODEC0_SIDEL | |
| OXYGEN_AC97_CODEC0_SIDER | |
| OXYGEN_AC97_CODEC0_CENTER | |
| OXYGEN_AC97_CODEC0_BASE | |
| OXYGEN_AC97_CODEC0_REARL | |
| OXYGEN_AC97_CODEC0_REARR); |
| oxygen_set_bits16(chip, OXYGEN_AC97_IN_CONFIG, |
| OXYGEN_AC97_CODEC0_LINEL | |
| OXYGEN_AC97_CODEC0_LINER); |
| 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); |
| } |
| } |
| |
| static void oxygen_card_free(struct snd_card *card) |
| { |
| struct oxygen *chip = card->private_data; |
| |
| spin_lock_irq(&chip->reg_lock); |
| chip->interrupt_mask = 0; |
| chip->pcm_running = 0; |
| oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); |
| oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); |
| spin_unlock_irq(&chip->reg_lock); |
| if (chip->irq >= 0) { |
| free_irq(chip->irq, chip); |
| synchronize_irq(chip->irq); |
| } |
| flush_scheduled_work(); |
| chip->model->cleanup(chip); |
| mutex_destroy(&chip->mutex); |
| pci_release_regions(chip->pci); |
| pci_disable_device(chip->pci); |
| } |
| |
| int __devinit oxygen_pci_probe(struct pci_dev *pci, int index, char *id, |
| int midi, const struct oxygen_model *model) |
| { |
| struct snd_card *card; |
| struct oxygen *chip; |
| int err; |
| |
| card = snd_card_new(index, id, model->owner, sizeof *chip); |
| if (!card) |
| return -ENOMEM; |
| |
| chip = card->private_data; |
| chip->card = card; |
| chip->pci = pci; |
| chip->irq = -1; |
| chip->model = model; |
| spin_lock_init(&chip->reg_lock); |
| mutex_init(&chip->mutex); |
| INIT_WORK(&chip->spdif_input_bits_work, |
| oxygen_spdif_input_bits_changed); |
| |
| err = pci_enable_device(pci); |
| if (err < 0) |
| goto err_card; |
| |
| err = pci_request_regions(pci, model->chip); |
| if (err < 0) { |
| snd_printk(KERN_ERR "cannot reserve PCI resources\n"); |
| goto err_pci_enable; |
| } |
| |
| if (!(pci_resource_flags(pci, 0) & IORESOURCE_IO) || |
| pci_resource_len(pci, 0) < 0x100) { |
| snd_printk(KERN_ERR "invalid PCI I/O range\n"); |
| err = -ENXIO; |
| goto err_pci_regions; |
| } |
| chip->addr = pci_resource_start(pci, 0); |
| |
| pci_set_master(pci); |
| snd_card_set_dev(card, &pci->dev); |
| card->private_free = oxygen_card_free; |
| |
| oxygen_init(chip); |
| model->init(chip); |
| |
| err = request_irq(pci->irq, oxygen_interrupt, IRQF_SHARED, |
| model->chip, chip); |
| if (err < 0) { |
| snd_printk(KERN_ERR "cannot grab interrupt %d\n", pci->irq); |
| goto err_card; |
| } |
| chip->irq = pci->irq; |
| |
| strcpy(card->driver, model->chip); |
| strcpy(card->shortname, model->shortname); |
| sprintf(card->longname, "%s (rev %u) at %#lx, irq %i", |
| model->longname, chip->revision, chip->addr, chip->irq); |
| strcpy(card->mixername, model->chip); |
| snd_component_add(card, model->chip); |
| |
| err = oxygen_pcm_init(chip); |
| if (err < 0) |
| goto err_card; |
| |
| err = oxygen_mixer_init(chip); |
| if (err < 0) |
| goto err_card; |
| |
| oxygen_write8_masked(chip, OXYGEN_MISC, |
| midi ? OXYGEN_MISC_MIDI : 0, OXYGEN_MISC_MIDI); |
| if (midi) { |
| err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI, |
| chip->addr + OXYGEN_MPU401, |
| MPU401_INFO_INTEGRATED, 0, 0, |
| &chip->midi); |
| if (err < 0) |
| goto err_card; |
| } |
| |
| oxygen_proc_init(chip); |
| |
| 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); |
| |
| err = snd_card_register(card); |
| if (err < 0) |
| goto err_card; |
| |
| pci_set_drvdata(pci, card); |
| return 0; |
| |
| err_pci_regions: |
| pci_release_regions(pci); |
| err_pci_enable: |
| pci_disable_device(pci); |
| err_card: |
| snd_card_free(card); |
| return err; |
| } |
| EXPORT_SYMBOL(oxygen_pci_probe); |
| |
| void __devexit oxygen_pci_remove(struct pci_dev *pci) |
| { |
| snd_card_free(pci_get_drvdata(pci)); |
| pci_set_drvdata(pci, NULL); |
| } |
| EXPORT_SYMBOL(oxygen_pci_remove); |