/* * C-Media CMI8788 driver for C-Media's reference design and for the X-Meridian * * Copyright (c) Clemens Ladisch * * * 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 */ /* * SPI 0 -> 1st AK4396 (front) * SPI 1 -> 2nd AK4396 (surround) * SPI 2 -> 3rd AK4396 (center/LFE) * SPI 3 -> WM8785 * SPI 4 -> 4th AK4396 (back) * * GPIO 0 -> DFS0 of AK5385 * GPIO 1 -> DFS1 of AK5385 */ #include #include #include #include #include #include #include #include #include #include #include "oxygen.h" #include "ak4396.h" #include "wm8785.h" MODULE_AUTHOR("Clemens Ladisch "); MODULE_DESCRIPTION("C-Media CMI8788 driver"); MODULE_LICENSE("GPL v2"); MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8788}}"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "card index"); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string"); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "enable card"); enum { MODEL_CMEDIA_REF, /* C-Media's reference design */ MODEL_MERIDIAN, /* AuzenTech X-Meridian */ }; static struct pci_device_id oxygen_ids[] __devinitdata = { { OXYGEN_PCI_SUBID(0x10b0, 0x0216), .driver_data = MODEL_CMEDIA_REF }, { OXYGEN_PCI_SUBID(0x10b0, 0x0218), .driver_data = MODEL_CMEDIA_REF }, { OXYGEN_PCI_SUBID(0x10b0, 0x0219), .driver_data = MODEL_CMEDIA_REF }, { OXYGEN_PCI_SUBID(0x13f6, 0x0001), .driver_data = MODEL_CMEDIA_REF }, { OXYGEN_PCI_SUBID(0x13f6, 0x0010), .driver_data = MODEL_CMEDIA_REF }, { OXYGEN_PCI_SUBID(0x13f6, 0x8788), .driver_data = MODEL_CMEDIA_REF }, { OXYGEN_PCI_SUBID(0x147a, 0xa017), .driver_data = MODEL_CMEDIA_REF }, { OXYGEN_PCI_SUBID(0x1a58, 0x0910), .driver_data = MODEL_CMEDIA_REF }, { OXYGEN_PCI_SUBID(0x415a, 0x5431), .driver_data = MODEL_MERIDIAN }, { OXYGEN_PCI_SUBID(0x7284, 0x9761), .driver_data = MODEL_CMEDIA_REF }, { } }; MODULE_DEVICE_TABLE(pci, oxygen_ids); #define GPIO_AK5385_DFS_MASK 0x0003 #define GPIO_AK5385_DFS_NORMAL 0x0000 #define GPIO_AK5385_DFS_DOUBLE 0x0001 #define GPIO_AK5385_DFS_QUAD 0x0002 struct generic_data { u8 ak4396_ctl2; u16 saved_wm8785_registers[2]; }; static void ak4396_write(struct oxygen *chip, unsigned int codec, u8 reg, u8 value) { /* maps ALSA channel pair number to SPI output */ static const u8 codec_spi_map[4] = { 0, 1, 2, 4 }; oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER | OXYGEN_SPI_DATA_LENGTH_2 | OXYGEN_SPI_CLOCK_160 | (codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) | OXYGEN_SPI_CEN_LATCH_CLOCK_HI, AK4396_WRITE | (reg << 8) | value); } static void wm8785_write(struct oxygen *chip, u8 reg, unsigned int value) { struct generic_data *data = chip->model_data; oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER | OXYGEN_SPI_DATA_LENGTH_2 | OXYGEN_SPI_CLOCK_160 | (3 << OXYGEN_SPI_CODEC_SHIFT) | OXYGEN_SPI_CEN_LATCH_CLOCK_LO, (reg << 9) | value); if (reg < ARRAY_SIZE(data->saved_wm8785_registers)) data->saved_wm8785_registers[reg] = value; } static void update_ak4396_volume(struct oxygen *chip) { unsigned int i; for (i = 0; i < 4; ++i) { ak4396_write(chip, i, AK4396_LCH_ATT, chip->dac_volume[i * 2]); ak4396_write(chip, i, AK4396_RCH_ATT, chip->dac_volume[i * 2 + 1]); } } static void ak4396_registers_init(struct oxygen *chip) { struct generic_data *data = chip->model_data; unsigned int i; for (i = 0; i < 4; ++i) { ak4396_write(chip, i, AK4396_CONTROL_1, AK4396_DIF_24_MSB | AK4396_RSTN); ak4396_write(chip, i, AK4396_CONTROL_2, data->ak4396_ctl2); ak4396_write(chip, i, AK4396_CONTROL_3, AK4396_PCM); } update_ak4396_volume(chip); } static void ak4396_init(struct oxygen *chip) { struct generic_data *data = chip->model_data; data->ak4396_ctl2 = AK4396_SMUTE | AK4396_DEM_OFF | AK4396_DFS_NORMAL; ak4396_registers_init(chip); snd_component_add(chip->card, "AK4396"); } static void ak5385_init(struct oxygen *chip) { oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_AK5385_DFS_MASK); oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_AK5385_DFS_MASK); snd_component_add(chip->card, "AK5385"); } static void wm8785_registers_init(struct oxygen *chip) { struct generic_data *data = chip->model_data; wm8785_write(chip, WM8785_R7, 0); wm8785_write(chip, WM8785_R0, data->saved_wm8785_registers[0]); wm8785_write(chip, WM8785_R1, data->saved_wm8785_registers[1]); } static void wm8785_init(struct oxygen *chip) { struct generic_data *data = chip->model_data; data->saved_wm8785_registers[0] = WM8785_MCR_SLAVE | WM8785_OSR_SINGLE | WM8785_FORMAT_LJUST; data->saved_wm8785_registers[1] = WM8785_WL_24; wm8785_registers_init(chip); snd_component_add(chip->card, "WM8785"); } static void generic_init(struct oxygen *chip) { ak4396_init(chip); wm8785_init(chip); } static void meridian_init(struct oxygen *chip) { ak4396_init(chip); ak5385_init(chip); } static void generic_cleanup(struct oxygen *chip) { } static void generic_resume(struct oxygen *chip) { ak4396_registers_init(chip); wm8785_registers_init(chip); } static void set_ak4396_params(struct oxygen *chip, struct snd_pcm_hw_params *params) { struct generic_data *data = chip->model_data; unsigned int i; u8 value; value = data->ak4396_ctl2 & ~AK4396_DFS_MASK; if (params_rate(params) <= 54000) value |= AK4396_DFS_NORMAL; else if (params_rate(params) <= 108000) value |= AK4396_DFS_DOUBLE; else value |= AK4396_DFS_QUAD; data->ak4396_ctl2 = value; msleep(1); /* wait for the new MCLK to become stable */ for (i = 0; i < 4; ++i) { ak4396_write(chip, i, AK4396_CONTROL_1, AK4396_DIF_24_MSB); ak4396_write(chip, i, AK4396_CONTROL_2, value); ak4396_write(chip, i, AK4396_CONTROL_1, AK4396_DIF_24_MSB | AK4396_RSTN); } } static void update_ak4396_mute(struct oxygen *chip) { struct generic_data *data = chip->model_data; unsigned int i; u8 value; value = data->ak4396_ctl2 & ~AK4396_SMUTE; if (chip->dac_mute) value |= AK4396_SMUTE; data->ak4396_ctl2 = value; for (i = 0; i < 4; ++i) ak4396_write(chip, i, AK4396_CONTROL_2, value); } static void set_wm8785_params(struct oxygen *chip, struct snd_pcm_hw_params *params) { unsigned int value; wm8785_write(chip, WM8785_R7, 0); value = WM8785_MCR_SLAVE | WM8785_FORMAT_LJUST; if (params_rate(params) <= 48000) value |= WM8785_OSR_SINGLE; else if (params_rate(params) <= 96000) value |= WM8785_OSR_DOUBLE; else value |= WM8785_OSR_QUAD; wm8785_write(chip, WM8785_R0, value); if (snd_pcm_format_width(params_format(params)) <= 16) value = WM8785_WL_16; else value = WM8785_WL_24; wm8785_write(chip, WM8785_R1, value); } static void set_ak5385_params(struct oxygen *chip, struct snd_pcm_hw_params *params) { unsigned int value; if (params_rate(params) <= 54000) value = GPIO_AK5385_DFS_NORMAL; else if (params_rate(params) <= 108000) value = GPIO_AK5385_DFS_DOUBLE; else value = GPIO_AK5385_DFS_QUAD; oxygen_write16_masked(chip, OXYGEN_GPIO_DATA, value, GPIO_AK5385_DFS_MASK); } static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0); static int generic_probe(struct oxygen *chip, unsigned long driver_data) { if (driver_data == MODEL_MERIDIAN) { chip->model.init = meridian_init; chip->model.resume = ak4396_registers_init; chip->model.set_adc_params = set_ak5385_params; chip->model.device_config = PLAYBACK_0_TO_I2S | PLAYBACK_1_TO_SPDIF | CAPTURE_0_FROM_I2S_2 | CAPTURE_1_FROM_SPDIF; chip->model.misc_flags = OXYGEN_MISC_MIDI; chip->model.device_config |= MIDI_OUTPUT | MIDI_INPUT; } return 0; } static const struct oxygen_model model_generic = { .shortname = "C-Media CMI8788", .longname = "C-Media Oxygen HD Audio", .chip = "CMI8788", .owner = THIS_MODULE, .probe = generic_probe, .init = generic_init, .cleanup = generic_cleanup, .resume = generic_resume, .set_dac_params = set_ak4396_params, .set_adc_params = set_wm8785_params, .update_dac_volume = update_ak4396_volume, .update_dac_mute = update_ak4396_mute, .dac_tlv = ak4396_db_scale, .model_data_size = sizeof(struct generic_data), .device_config = PLAYBACK_0_TO_I2S | PLAYBACK_1_TO_SPDIF | PLAYBACK_2_TO_AC97_1 | CAPTURE_0_FROM_I2S_1 | CAPTURE_1_FROM_SPDIF | CAPTURE_2_FROM_AC97_1, .dac_channels = 8, .dac_volume_min = 0, .dac_volume_max = 255, .function_flags = OXYGEN_FUNCTION_SPI | OXYGEN_FUNCTION_ENABLE_SPI_4_5, .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST, .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST, }; static int __devinit generic_oxygen_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { static int dev; int err; if (dev >= SNDRV_CARDS) return -ENODEV; if (!enable[dev]) { ++dev; return -ENOENT; } err = oxygen_pci_probe(pci, index[dev], id[dev], &model_generic, pci_id->driver_data); if (err >= 0) ++dev; return err; } static struct pci_driver oxygen_driver = { .name = "CMI8788", .id_table = oxygen_ids, .probe = generic_oxygen_probe, .remove = __devexit_p(oxygen_pci_remove), #ifdef CONFIG_PM .suspend = oxygen_pci_suspend, .resume = oxygen_pci_resume, #endif }; static int __init alsa_card_oxygen_init(void) { return pci_register_driver(&oxygen_driver); } static void __exit alsa_card_oxygen_exit(void) { pci_unregister_driver(&oxygen_driver); } module_init(alsa_card_oxygen_init) module_exit(alsa_card_oxygen_exit)