1 /* 2 * C-Media CMI8788 driver for C-Media's reference design and for the X-Meridian 3 * 4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de> 5 * 6 * 7 * This driver is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License, version 2. 9 * 10 * This driver is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this driver; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 */ 19 20 /* 21 * SPI 0 -> 1st AK4396 (front) 22 * SPI 1 -> 2nd AK4396 (surround) 23 * SPI 2 -> 3rd AK4396 (center/LFE) 24 * SPI 3 -> WM8785 25 * SPI 4 -> 4th AK4396 (back) 26 * 27 * GPIO 0 -> DFS0 of AK5385 28 * GPIO 1 -> DFS1 of AK5385 29 */ 30 31 #include <linux/mutex.h> 32 #include <linux/pci.h> 33 #include <sound/ac97_codec.h> 34 #include <sound/control.h> 35 #include <sound/core.h> 36 #include <sound/initval.h> 37 #include <sound/pcm.h> 38 #include <sound/pcm_params.h> 39 #include <sound/tlv.h> 40 #include "oxygen.h" 41 #include "ak4396.h" 42 #include "wm8785.h" 43 44 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); 45 MODULE_DESCRIPTION("C-Media CMI8788 driver"); 46 MODULE_LICENSE("GPL"); 47 MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8788}}"); 48 49 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 50 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 51 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 52 53 module_param_array(index, int, NULL, 0444); 54 MODULE_PARM_DESC(index, "card index"); 55 module_param_array(id, charp, NULL, 0444); 56 MODULE_PARM_DESC(id, "ID string"); 57 module_param_array(enable, bool, NULL, 0444); 58 MODULE_PARM_DESC(enable, "enable card"); 59 60 static struct pci_device_id oxygen_ids[] __devinitdata = { 61 { OXYGEN_PCI_SUBID(0x10b0, 0x0216) }, 62 { OXYGEN_PCI_SUBID(0x10b0, 0x0218) }, 63 { OXYGEN_PCI_SUBID(0x10b0, 0x0219) }, 64 { OXYGEN_PCI_SUBID(0x13f6, 0x0001) }, 65 { OXYGEN_PCI_SUBID(0x13f6, 0x0010) }, 66 { OXYGEN_PCI_SUBID(0x13f6, 0x8788) }, 67 { OXYGEN_PCI_SUBID(0x147a, 0xa017) }, 68 { OXYGEN_PCI_SUBID(0x1a58, 0x0910) }, 69 { OXYGEN_PCI_SUBID(0x415a, 0x5431), .driver_data = 1 }, 70 { OXYGEN_PCI_SUBID(0x7284, 0x9761) }, 71 { } 72 }; 73 MODULE_DEVICE_TABLE(pci, oxygen_ids); 74 75 76 #define GPIO_AK5385_DFS_MASK 0x0003 77 #define GPIO_AK5385_DFS_NORMAL 0x0000 78 #define GPIO_AK5385_DFS_DOUBLE 0x0001 79 #define GPIO_AK5385_DFS_QUAD 0x0002 80 81 struct generic_data { 82 u8 ak4396_ctl2; 83 }; 84 85 static void ak4396_write(struct oxygen *chip, unsigned int codec, 86 u8 reg, u8 value) 87 { 88 /* maps ALSA channel pair number to SPI output */ 89 static const u8 codec_spi_map[4] = { 90 0, 1, 2, 4 91 }; 92 oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER | 93 OXYGEN_SPI_DATA_LENGTH_2 | 94 OXYGEN_SPI_CLOCK_160 | 95 (codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) | 96 OXYGEN_SPI_CEN_LATCH_CLOCK_HI, 97 AK4396_WRITE | (reg << 8) | value); 98 } 99 100 static void wm8785_write(struct oxygen *chip, u8 reg, unsigned int value) 101 { 102 oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER | 103 OXYGEN_SPI_DATA_LENGTH_2 | 104 OXYGEN_SPI_CLOCK_160 | 105 (3 << OXYGEN_SPI_CODEC_SHIFT) | 106 OXYGEN_SPI_CEN_LATCH_CLOCK_LO, 107 (reg << 9) | value); 108 } 109 110 static void ak4396_init(struct oxygen *chip) 111 { 112 struct generic_data *data = chip->model_data; 113 unsigned int i; 114 115 data->ak4396_ctl2 = AK4396_SMUTE | AK4396_DEM_OFF | AK4396_DFS_NORMAL; 116 for (i = 0; i < 4; ++i) { 117 ak4396_write(chip, i, 118 AK4396_CONTROL_1, AK4396_DIF_24_MSB | AK4396_RSTN); 119 ak4396_write(chip, i, 120 AK4396_CONTROL_2, data->ak4396_ctl2); 121 ak4396_write(chip, i, 122 AK4396_CONTROL_3, AK4396_PCM); 123 ak4396_write(chip, i, AK4396_LCH_ATT, 0); 124 ak4396_write(chip, i, AK4396_RCH_ATT, 0); 125 } 126 snd_component_add(chip->card, "AK4396"); 127 } 128 129 static void ak5385_init(struct oxygen *chip) 130 { 131 oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_AK5385_DFS_MASK); 132 oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_AK5385_DFS_MASK); 133 snd_component_add(chip->card, "AK5385"); 134 } 135 136 static void wm8785_init(struct oxygen *chip) 137 { 138 wm8785_write(chip, WM8785_R7, 0); 139 wm8785_write(chip, WM8785_R0, WM8785_MCR_SLAVE | 140 WM8785_OSR_SINGLE | WM8785_FORMAT_LJUST); 141 wm8785_write(chip, WM8785_R1, WM8785_WL_24); 142 snd_component_add(chip->card, "WM8785"); 143 } 144 145 static void generic_init(struct oxygen *chip) 146 { 147 ak4396_init(chip); 148 wm8785_init(chip); 149 } 150 151 static void meridian_init(struct oxygen *chip) 152 { 153 ak4396_init(chip); 154 ak5385_init(chip); 155 } 156 157 static void generic_cleanup(struct oxygen *chip) 158 { 159 } 160 161 static void set_ak4396_params(struct oxygen *chip, 162 struct snd_pcm_hw_params *params) 163 { 164 struct generic_data *data = chip->model_data; 165 unsigned int i; 166 u8 value; 167 168 value = data->ak4396_ctl2 & ~AK4396_DFS_MASK; 169 if (params_rate(params) <= 54000) 170 value |= AK4396_DFS_NORMAL; 171 else if (params_rate(params) <= 108000) 172 value |= AK4396_DFS_DOUBLE; 173 else 174 value |= AK4396_DFS_QUAD; 175 data->ak4396_ctl2 = value; 176 for (i = 0; i < 4; ++i) { 177 ak4396_write(chip, i, 178 AK4396_CONTROL_1, AK4396_DIF_24_MSB); 179 ak4396_write(chip, i, 180 AK4396_CONTROL_2, value); 181 ak4396_write(chip, i, 182 AK4396_CONTROL_1, AK4396_DIF_24_MSB | AK4396_RSTN); 183 } 184 } 185 186 static void update_ak4396_volume(struct oxygen *chip) 187 { 188 unsigned int i; 189 190 for (i = 0; i < 4; ++i) { 191 ak4396_write(chip, i, 192 AK4396_LCH_ATT, chip->dac_volume[i * 2]); 193 ak4396_write(chip, i, 194 AK4396_RCH_ATT, chip->dac_volume[i * 2 + 1]); 195 } 196 } 197 198 static void update_ak4396_mute(struct oxygen *chip) 199 { 200 struct generic_data *data = chip->model_data; 201 unsigned int i; 202 u8 value; 203 204 value = data->ak4396_ctl2 & ~AK4396_SMUTE; 205 if (chip->dac_mute) 206 value |= AK4396_SMUTE; 207 data->ak4396_ctl2 = value; 208 for (i = 0; i < 4; ++i) 209 ak4396_write(chip, i, AK4396_CONTROL_2, value); 210 } 211 212 static void set_wm8785_params(struct oxygen *chip, 213 struct snd_pcm_hw_params *params) 214 { 215 unsigned int value; 216 217 wm8785_write(chip, WM8785_R7, 0); 218 219 value = WM8785_MCR_SLAVE | WM8785_FORMAT_LJUST; 220 if (params_rate(params) <= 48000) 221 value |= WM8785_OSR_SINGLE; 222 else if (params_rate(params) <= 96000) 223 value |= WM8785_OSR_DOUBLE; 224 else 225 value |= WM8785_OSR_QUAD; 226 wm8785_write(chip, WM8785_R0, value); 227 228 if (snd_pcm_format_width(params_format(params)) <= 16) 229 value = WM8785_WL_16; 230 else 231 value = WM8785_WL_24; 232 wm8785_write(chip, WM8785_R1, value); 233 } 234 235 static void set_ak5385_params(struct oxygen *chip, 236 struct snd_pcm_hw_params *params) 237 { 238 unsigned int value; 239 240 if (params_rate(params) <= 54000) 241 value = GPIO_AK5385_DFS_NORMAL; 242 else if (params_rate(params) <= 108000) 243 value = GPIO_AK5385_DFS_DOUBLE; 244 else 245 value = GPIO_AK5385_DFS_QUAD; 246 oxygen_write16_masked(chip, OXYGEN_GPIO_DATA, 247 value, GPIO_AK5385_DFS_MASK); 248 } 249 250 static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0); 251 252 static const struct oxygen_model model_generic = { 253 .shortname = "C-Media CMI8788", 254 .longname = "C-Media Oxygen HD Audio", 255 .chip = "CMI8788", 256 .owner = THIS_MODULE, 257 .init = generic_init, 258 .cleanup = generic_cleanup, 259 .set_dac_params = set_ak4396_params, 260 .set_adc_params = set_wm8785_params, 261 .update_dac_volume = update_ak4396_volume, 262 .update_dac_mute = update_ak4396_mute, 263 .dac_tlv = ak4396_db_scale, 264 .model_data_size = sizeof(struct generic_data), 265 .pcm_dev_cfg = PLAYBACK_0_TO_I2S | 266 PLAYBACK_1_TO_SPDIF | 267 PLAYBACK_2_TO_AC97_1 | 268 CAPTURE_0_FROM_I2S_1 | 269 CAPTURE_1_FROM_SPDIF | 270 CAPTURE_2_FROM_AC97_1, 271 .dac_channels = 8, 272 .dac_volume_min = 0, 273 .dac_volume_max = 255, 274 .function_flags = OXYGEN_FUNCTION_SPI | 275 OXYGEN_FUNCTION_ENABLE_SPI_4_5, 276 .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST, 277 .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST, 278 }; 279 static const struct oxygen_model model_meridian = { 280 .shortname = "C-Media CMI8788", 281 .longname = "C-Media Oxygen HD Audio", 282 .chip = "CMI8788", 283 .owner = THIS_MODULE, 284 .init = meridian_init, 285 .cleanup = generic_cleanup, 286 .set_dac_params = set_ak4396_params, 287 .set_adc_params = set_ak5385_params, 288 .update_dac_volume = update_ak4396_volume, 289 .update_dac_mute = update_ak4396_mute, 290 .dac_tlv = ak4396_db_scale, 291 .model_data_size = sizeof(struct generic_data), 292 .pcm_dev_cfg = PLAYBACK_0_TO_I2S | 293 PLAYBACK_1_TO_SPDIF | 294 PLAYBACK_2_TO_AC97_1 | 295 CAPTURE_0_FROM_I2S_2 | 296 CAPTURE_1_FROM_SPDIF | 297 CAPTURE_2_FROM_AC97_1, 298 .dac_channels = 8, 299 .dac_volume_min = 0, 300 .dac_volume_max = 255, 301 .misc_flags = OXYGEN_MISC_MIDI, 302 .function_flags = OXYGEN_FUNCTION_SPI | 303 OXYGEN_FUNCTION_ENABLE_SPI_4_5, 304 .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST, 305 .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST, 306 }; 307 308 static int __devinit generic_oxygen_probe(struct pci_dev *pci, 309 const struct pci_device_id *pci_id) 310 { 311 static int dev; 312 int is_meridian; 313 int err; 314 315 if (dev >= SNDRV_CARDS) 316 return -ENODEV; 317 if (!enable[dev]) { 318 ++dev; 319 return -ENOENT; 320 } 321 is_meridian = pci_id->driver_data; 322 err = oxygen_pci_probe(pci, index[dev], id[dev], 323 is_meridian ? &model_meridian : &model_generic); 324 if (err >= 0) 325 ++dev; 326 return err; 327 } 328 329 static struct pci_driver oxygen_driver = { 330 .name = "CMI8788", 331 .id_table = oxygen_ids, 332 .probe = generic_oxygen_probe, 333 .remove = __devexit_p(oxygen_pci_remove), 334 }; 335 336 static int __init alsa_card_oxygen_init(void) 337 { 338 return pci_register_driver(&oxygen_driver); 339 } 340 341 static void __exit alsa_card_oxygen_exit(void) 342 { 343 pci_unregister_driver(&oxygen_driver); 344 } 345 346 module_init(alsa_card_oxygen_init) 347 module_exit(alsa_card_oxygen_exit) 348