/* * 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 "oxygen.h" MODULE_AUTHOR("Clemens Ladisch "); MODULE_DESCRIPTION("C-Media CMI8788 driver"); MODULE_LICENSE("GPL"); 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"); static struct pci_device_id oxygen_ids[] __devinitdata = { { OXYGEN_PCI_SUBID(0x10b0, 0x0216) }, { OXYGEN_PCI_SUBID(0x10b0, 0x0218) }, { OXYGEN_PCI_SUBID(0x10b0, 0x0219) }, { OXYGEN_PCI_SUBID(0x13f6, 0x0001) }, { OXYGEN_PCI_SUBID(0x13f6, 0x0010) }, { OXYGEN_PCI_SUBID(0x13f6, 0x8788) }, { OXYGEN_PCI_SUBID(0x147a, 0xa017) }, { OXYGEN_PCI_SUBID(0x14c3, 0x1710) }, { OXYGEN_PCI_SUBID(0x14c3, 0x1711) }, { OXYGEN_PCI_SUBID(0x1a58, 0x0910) }, { OXYGEN_PCI_SUBID(0x415a, 0x5431), .driver_data = 1 }, { OXYGEN_PCI_SUBID(0x7284, 0x9761) }, { } }; MODULE_DEVICE_TABLE(pci, oxygen_ids); #define AK4396_WRITE 0x2000 /* register 0 */ #define AK4396_RSTN 0x01 #define AK4396_DIF_24_MSB 0x04 /* register 1 */ #define AK4396_SMUTE 0x01 #define AK4396_DEM_OFF 0x02 #define AK4396_DFS_MASK 0x18 #define AK4396_DFS_NORMAL 0x00 #define AK4396_DFS_DOUBLE 0x08 #define AK4396_DFS_QUAD 0x10 /* register 0 */ #define WM8785_OSR_SINGLE 0x000 #define WM8785_OSR_DOUBLE 0x008 #define WM8785_OSR_QUAD 0x010 #define WM8785_FORMAT_LJUST 0x020 #define WM8785_FORMAT_I2S 0x040 /* register 1 */ #define WM8785_WL_16 0x000 #define WM8785_WL_20 0x001 #define WM8785_WL_24 0x002 #define WM8785_WL_32 0x003 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_WRITE | OXYGEN_SPI_DATA_LENGTH_2 | (codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) | OXYGEN_SPI_MAGIC, AK4396_WRITE | (reg << 8) | value); } static void wm8785_write(struct oxygen *chip, u8 reg, unsigned int value) { oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER_WRITE | OXYGEN_SPI_DATA_LENGTH_2 | (3 << OXYGEN_SPI_CODEC_SHIFT), (reg << 9) | value); } static void ak4396_init(struct oxygen *chip) { unsigned int i; chip->ak4396_reg1 = AK4396_DEM_OFF | AK4396_DFS_NORMAL; for (i = 0; i < 4; ++i) { ak4396_write(chip, i, 0, AK4396_DIF_24_MSB | AK4396_RSTN); ak4396_write(chip, i, 1, chip->ak4396_reg1); ak4396_write(chip, i, 2, 0); ak4396_write(chip, i, 3, 0xff); ak4396_write(chip, i, 4, 0xff); } snd_component_add(chip->card, "AK4396"); } static void ak5385_init(struct oxygen *chip) { oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x0003); oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, 0x0003); snd_component_add(chip->card, "AK5385"); } static void wm8785_init(struct oxygen *chip) { wm8785_write(chip, 7, 0); wm8785_write(chip, 0, WM8785_FORMAT_LJUST | WM8785_OSR_SINGLE); wm8785_write(chip, 1, WM8785_WL_24); 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_pcm_hardware_filter(unsigned int channel, struct snd_pcm_hardware *hardware) { if (channel == PCM_A) { hardware->rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000; hardware->rate_min = 44100; } } static void set_ak4396_params(struct oxygen *chip, struct snd_pcm_hw_params *params) { unsigned int i; u8 value; value = chip->ak4396_reg1 & ~AK4396_DFS_MASK; if (params_rate(params) <= 54000) value |= AK4396_DFS_NORMAL; else if (params_rate(params) < 120000) value |= AK4396_DFS_DOUBLE; else value |= AK4396_DFS_QUAD; chip->ak4396_reg1 = value; for (i = 0; i < 4; ++i) { ak4396_write(chip, i, 0, AK4396_DIF_24_MSB); ak4396_write(chip, i, 1, value); ak4396_write(chip, i, 0, AK4396_DIF_24_MSB | AK4396_RSTN); } } static void update_ak4396_volume(struct oxygen *chip) { unsigned int i; for (i = 0; i < 4; ++i) { ak4396_write(chip, i, 3, chip->dac_volume[i * 2]); ak4396_write(chip, i, 4, chip->dac_volume[i * 2 + 1]); } } static void update_ak4396_mute(struct oxygen *chip) { unsigned int i; u8 value; value = chip->ak4396_reg1 & ~AK4396_SMUTE; if (chip->dac_mute) value |= AK4396_SMUTE; for (i = 0; i < 4; ++i) ak4396_write(chip, i, 1, value); } static void set_wm8785_params(struct oxygen *chip, struct snd_pcm_hw_params *params) { unsigned int value; wm8785_write(chip, 7, 0); value = WM8785_FORMAT_LJUST; if (params_rate(params) == 96000) value |= WM8785_OSR_DOUBLE; else if (params_rate(params) == 192000) value |= WM8785_OSR_QUAD; else value |= WM8785_OSR_SINGLE; wm8785_write(chip, 0, value); if (snd_pcm_format_width(params_format(params)) <= 16) value = WM8785_WL_16; else value = WM8785_WL_24; wm8785_write(chip, 1, value); } static void set_ak5385_params(struct oxygen *chip, struct snd_pcm_hw_params *params) { unsigned int value; if (params_rate(params) <= 54000) value = 0; else if (params_rate(params) <= 108000) value = 1; else value = 2; oxygen_write16_masked(chip, OXYGEN_GPIO_DATA, value, 0x0003); } static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0); static int ak4396_control_filter(struct snd_kcontrol_new *template) { if (!strcmp(template->name, "Master Playback Volume")) { template->access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ; template->tlv.p = ak4396_db_scale; } return 0; } static const struct oxygen_model model_generic = { .shortname = "C-Media CMI8788", .longname = "C-Media Oxygen HD Audio", .chip = "CMI8788", .owner = THIS_MODULE, .init = generic_init, .control_filter = ak4396_control_filter, .cleanup = generic_cleanup, .pcm_hardware_filter = generic_pcm_hardware_filter, .set_dac_params = set_ak4396_params, .set_adc_params = set_wm8785_params, .update_dac_volume = update_ak4396_volume, .update_dac_mute = update_ak4396_mute, .used_channels = OXYGEN_CHANNEL_A | OXYGEN_CHANNEL_C | OXYGEN_CHANNEL_SPDIF | OXYGEN_CHANNEL_MULTICH | OXYGEN_CHANNEL_AC97, .function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5, }; static const struct oxygen_model model_meridian = { .shortname = "C-Media CMI8788", .longname = "C-Media Oxygen HD Audio", .chip = "CMI8788", .owner = THIS_MODULE, .init = meridian_init, .control_filter = ak4396_control_filter, .cleanup = generic_cleanup, .set_dac_params = set_ak4396_params, .set_adc_params = set_ak5385_params, .update_dac_volume = update_ak4396_volume, .update_dac_mute = update_ak4396_mute, .used_channels = OXYGEN_CHANNEL_B | OXYGEN_CHANNEL_C | OXYGEN_CHANNEL_SPDIF | OXYGEN_CHANNEL_MULTICH | OXYGEN_CHANNEL_AC97, .function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5, }; static int __devinit generic_oxygen_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { static int dev; const struct oxygen_model *model; int err; if (dev >= SNDRV_CARDS) return -ENODEV; if (!enable[dev]) { ++dev; return -ENOENT; } model = pci_id->driver_data ? &model_meridian : &model_generic; err = oxygen_pci_probe(pci, index[dev], id[dev], model); 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), }; 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)