git.oblomov.eu Git - linux-2.6/blob - sound/pci/oxygen/oxygen.c

   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/delay.h>
  32 #include <linux/mutex.h>
  33 #include <linux/pci.h>
  34 #include <sound/ac97_codec.h>
  35 #include <sound/control.h>
  36 #include <sound/core.h>
  37 #include <sound/initval.h>
  38 #include <sound/pcm.h>
  39 #include <sound/pcm_params.h>
  40 #include <sound/tlv.h>
  41 #include "oxygen.h"
  42 #include "ak4396.h"
  43 #include "wm8785.h"
  44
  45 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  46 MODULE_DESCRIPTION("C-Media CMI8788 driver");
  47 MODULE_LICENSE("GPL v2");
  48 MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8788}}");
  49
  50 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  51 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  52 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  53
  54 module_param_array(index, int, NULL, 0444);
  55 MODULE_PARM_DESC(index, "card index");
  56 module_param_array(id, charp, NULL, 0444);
  57 MODULE_PARM_DESC(id, "ID string");
  58 module_param_array(enable, bool, NULL, 0444);
  59 MODULE_PARM_DESC(enable, "enable card");
  60
  61 enum {
  62         MODEL_CMEDIA_REF,       /* C-Media's reference design */
  63         MODEL_MERIDIAN,         /* AuzenTech X-Meridian */
  64         MODEL_HALO,             /* HT-Omega Claro halo */
  65 };
  66
  67 static struct pci_device_id oxygen_ids[] __devinitdata = {
  68         { OXYGEN_PCI_SUBID(0x10b0, 0x0216), .driver_data = MODEL_CMEDIA_REF },
  69         { OXYGEN_PCI_SUBID(0x10b0, 0x0218), .driver_data = MODEL_CMEDIA_REF },
  70         { OXYGEN_PCI_SUBID(0x10b0, 0x0219), .driver_data = MODEL_CMEDIA_REF },
  71         { OXYGEN_PCI_SUBID(0x13f6, 0x0001), .driver_data = MODEL_CMEDIA_REF },
  72         { OXYGEN_PCI_SUBID(0x13f6, 0x0010), .driver_data = MODEL_CMEDIA_REF },
  73         { OXYGEN_PCI_SUBID(0x13f6, 0x8788), .driver_data = MODEL_CMEDIA_REF },
  74         { OXYGEN_PCI_SUBID(0x147a, 0xa017), .driver_data = MODEL_CMEDIA_REF },
  75         { OXYGEN_PCI_SUBID(0x1a58, 0x0910), .driver_data = MODEL_CMEDIA_REF },
  76         { OXYGEN_PCI_SUBID(0x415a, 0x5431), .driver_data = MODEL_MERIDIAN },
  77         { OXYGEN_PCI_SUBID(0x7284, 0x9761), .driver_data = MODEL_CMEDIA_REF },
  78         { OXYGEN_PCI_SUBID(0x7284, 0x9781), .driver_data = MODEL_HALO },
  79         { }
  80 };
  81 MODULE_DEVICE_TABLE(pci, oxygen_ids);
  82
  83
  84 #define GPIO_AK5385_DFS_MASK    0x0003
  85 #define GPIO_AK5385_DFS_NORMAL  0x0000
  86 #define GPIO_AK5385_DFS_DOUBLE  0x0001
  87 #define GPIO_AK5385_DFS_QUAD    0x0002
  88
  89 struct generic_data {
  90         u8 ak4396_ctl2;
  91         u16 saved_wm8785_registers[2];
  92 };
  93
  94 static void ak4396_write(struct oxygen *chip, unsigned int codec,
  95                          u8 reg, u8 value)
  96 {
  97         /* maps ALSA channel pair number to SPI output */
  98         static const u8 codec_spi_map[4] = {
  99                 0, 1, 2, 4
 100         };
 101         oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
 102                          OXYGEN_SPI_DATA_LENGTH_2 |
 103                          OXYGEN_SPI_CLOCK_160 |
 104                          (codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
 105                          OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
 106                          AK4396_WRITE | (reg << 8) | value);
 107 }
 108
 109 static void wm8785_write(struct oxygen *chip, u8 reg, unsigned int value)
 110 {
 111         struct generic_data *data = chip->model_data;
 112
 113         oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
 114                          OXYGEN_SPI_DATA_LENGTH_2 |
 115                          OXYGEN_SPI_CLOCK_160 |
 116                          (3 << OXYGEN_SPI_CODEC_SHIFT) |
 117                          OXYGEN_SPI_CEN_LATCH_CLOCK_LO,
 118                          (reg << 9) | value);
 119         if (reg < ARRAY_SIZE(data->saved_wm8785_registers))
 120                 data->saved_wm8785_registers[reg] = value;
 121 }
 122
 123 static void update_ak4396_volume(struct oxygen *chip)
 124 {
 125         unsigned int i;
 126
 127         for (i = 0; i < 4; ++i) {
 128                 ak4396_write(chip, i,
 129                              AK4396_LCH_ATT, chip->dac_volume[i * 2]);
 130                 ak4396_write(chip, i,
 131                              AK4396_RCH_ATT, chip->dac_volume[i * 2 + 1]);
 132         }
 133 }
 134
 135 static void ak4396_registers_init(struct oxygen *chip)
 136 {
 137         struct generic_data *data = chip->model_data;
 138         unsigned int i;
 139
 140         for (i = 0; i < 4; ++i) {
 141                 ak4396_write(chip, i,
 142                              AK4396_CONTROL_1, AK4396_DIF_24_MSB | AK4396_RSTN);
 143                 ak4396_write(chip, i,
 144                              AK4396_CONTROL_2, data->ak4396_ctl2);
 145                 ak4396_write(chip, i,
 146                              AK4396_CONTROL_3, AK4396_PCM);
 147         }
 148         update_ak4396_volume(chip);
 149 }
 150
 151 static void ak4396_init(struct oxygen *chip)
 152 {
 153         struct generic_data *data = chip->model_data;
 154
 155         data->ak4396_ctl2 = AK4396_SMUTE | AK4396_DEM_OFF | AK4396_DFS_NORMAL;
 156         ak4396_registers_init(chip);
 157         snd_component_add(chip->card, "AK4396");
 158 }
 159
 160 static void ak5385_init(struct oxygen *chip)
 161 {
 162         oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_AK5385_DFS_MASK);
 163         oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_AK5385_DFS_MASK);
 164         snd_component_add(chip->card, "AK5385");
 165 }
 166
 167 static void wm8785_registers_init(struct oxygen *chip)
 168 {
 169         struct generic_data *data = chip->model_data;
 170
 171         wm8785_write(chip, WM8785_R7, 0);
 172         wm8785_write(chip, WM8785_R0, data->saved_wm8785_registers[0]);
 173         wm8785_write(chip, WM8785_R1, data->saved_wm8785_registers[1]);
 174 }
 175
 176 static void wm8785_init(struct oxygen *chip)
 177 {
 178         struct generic_data *data = chip->model_data;
 179
 180         data->saved_wm8785_registers[0] = WM8785_MCR_SLAVE |
 181                 WM8785_OSR_SINGLE | WM8785_FORMAT_LJUST;
 182         data->saved_wm8785_registers[1] = WM8785_WL_24;
 183         wm8785_registers_init(chip);
 184         snd_component_add(chip->card, "WM8785");
 185 }
 186
 187 static void generic_init(struct oxygen *chip)
 188 {
 189         ak4396_init(chip);
 190         wm8785_init(chip);
 191 }
 192
 193 static void meridian_init(struct oxygen *chip)
 194 {
 195         ak4396_init(chip);
 196         ak5385_init(chip);
 197 }
 198
 199 static void generic_cleanup(struct oxygen *chip)
 200 {
 201 }
 202
 203 static void generic_resume(struct oxygen *chip)
 204 {
 205         ak4396_registers_init(chip);
 206         wm8785_registers_init(chip);
 207 }
 208
 209 static void meridian_resume(struct oxygen *chip)
 210 {
 211         ak4396_registers_init(chip);
 212 }
 213
 214 static void set_ak4396_params(struct oxygen *chip,
 215                               struct snd_pcm_hw_params *params)
 216 {
 217         struct generic_data *data = chip->model_data;
 218         unsigned int i;
 219         u8 value;
 220
 221         value = data->ak4396_ctl2 & ~AK4396_DFS_MASK;
 222         if (params_rate(params) <= 54000)
 223                 value |= AK4396_DFS_NORMAL;
 224         else if (params_rate(params) <= 108000)
 225                 value |= AK4396_DFS_DOUBLE;
 226         else
 227                 value |= AK4396_DFS_QUAD;
 228         data->ak4396_ctl2 = value;
 229
 230         msleep(1); /* wait for the new MCLK to become stable */
 231
 232         for (i = 0; i < 4; ++i) {
 233                 ak4396_write(chip, i,
 234                              AK4396_CONTROL_1, AK4396_DIF_24_MSB);
 235                 ak4396_write(chip, i,
 236                              AK4396_CONTROL_2, value);
 237                 ak4396_write(chip, i,
 238                              AK4396_CONTROL_1, AK4396_DIF_24_MSB | AK4396_RSTN);
 239         }
 240 }
 241
 242 static void update_ak4396_mute(struct oxygen *chip)
 243 {
 244         struct generic_data *data = chip->model_data;
 245         unsigned int i;
 246         u8 value;
 247
 248         value = data->ak4396_ctl2 & ~AK4396_SMUTE;
 249         if (chip->dac_mute)
 250                 value |= AK4396_SMUTE;
 251         data->ak4396_ctl2 = value;
 252         for (i = 0; i < 4; ++i)
 253                 ak4396_write(chip, i, AK4396_CONTROL_2, value);
 254 }
 255
 256 static void set_wm8785_params(struct oxygen *chip,
 257                               struct snd_pcm_hw_params *params)
 258 {
 259         unsigned int value;
 260
 261         wm8785_write(chip, WM8785_R7, 0);
 262
 263         value = WM8785_MCR_SLAVE | WM8785_FORMAT_LJUST;
 264         if (params_rate(params) <= 48000)
 265                 value |= WM8785_OSR_SINGLE;
 266         else if (params_rate(params) <= 96000)
 267                 value |= WM8785_OSR_DOUBLE;
 268         else
 269                 value |= WM8785_OSR_QUAD;
 270         wm8785_write(chip, WM8785_R0, value);
 271
 272         if (snd_pcm_format_width(params_format(params)) <= 16)
 273                 value = WM8785_WL_16;
 274         else
 275                 value = WM8785_WL_24;
 276         wm8785_write(chip, WM8785_R1, value);
 277 }
 278
 279 static void set_ak5385_params(struct oxygen *chip,
 280                               struct snd_pcm_hw_params *params)
 281 {
 282         unsigned int value;
 283
 284         if (params_rate(params) <= 54000)
 285                 value = GPIO_AK5385_DFS_NORMAL;
 286         else if (params_rate(params) <= 108000)
 287                 value = GPIO_AK5385_DFS_DOUBLE;
 288         else
 289                 value = GPIO_AK5385_DFS_QUAD;
 290         oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
 291                               value, GPIO_AK5385_DFS_MASK);
 292 }
 293
 294 static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0);
 295
 296 static int generic_probe(struct oxygen *chip, unsigned long driver_data)
 297 {
 298         if (driver_data == MODEL_MERIDIAN) {
 299                 chip->model.init = meridian_init;
 300                 chip->model.resume = meridian_resume;
 301                 chip->model.set_adc_params = set_ak5385_params;
 302                 chip->model.device_config = PLAYBACK_0_TO_I2S |
 303                                             PLAYBACK_1_TO_SPDIF |
 304                                             CAPTURE_0_FROM_I2S_2 |
 305                                             CAPTURE_1_FROM_SPDIF;
 306         }
 307         if (driver_data == MODEL_MERIDIAN || driver_data == MODEL_HALO) {
 308                 chip->model.misc_flags = OXYGEN_MISC_MIDI;
 309                 chip->model.device_config |= MIDI_OUTPUT | MIDI_INPUT;
 310         }
 311         return 0;
 312 }
 313
 314 static const struct oxygen_model model_generic = {
 315         .shortname = "C-Media CMI8788",
 316         .longname = "C-Media Oxygen HD Audio",
 317         .chip = "CMI8788",
 318         .owner = THIS_MODULE,
 319         .probe = generic_probe,
 320         .init = generic_init,
 321         .cleanup = generic_cleanup,
 322         .resume = generic_resume,
 323         .set_dac_params = set_ak4396_params,
 324         .set_adc_params = set_wm8785_params,
 325         .update_dac_volume = update_ak4396_volume,
 326         .update_dac_mute = update_ak4396_mute,
 327         .dac_tlv = ak4396_db_scale,
 328         .model_data_size = sizeof(struct generic_data),
 329         .device_config = PLAYBACK_0_TO_I2S |
 330                          PLAYBACK_1_TO_SPDIF |
 331                          PLAYBACK_2_TO_AC97_1 |
 332                          CAPTURE_0_FROM_I2S_1 |
 333                          CAPTURE_1_FROM_SPDIF |
 334                          CAPTURE_2_FROM_AC97_1,
 335         .dac_channels = 8,
 336         .dac_volume_min = 0,
 337         .dac_volume_max = 255,
 338         .function_flags = OXYGEN_FUNCTION_SPI |
 339                           OXYGEN_FUNCTION_ENABLE_SPI_4_5,
 340         .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 341         .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 342 };
 343
 344 static int __devinit generic_oxygen_probe(struct pci_dev *pci,
 345                                           const struct pci_device_id *pci_id)
 346 {
 347         static int dev;
 348         int err;
 349
 350         if (dev >= SNDRV_CARDS)
 351                 return -ENODEV;
 352         if (!enable[dev]) {
 353                 ++dev;
 354                 return -ENOENT;
 355         }
 356         err = oxygen_pci_probe(pci, index[dev], id[dev],
 357                                &model_generic, pci_id->driver_data);
 358         if (err >= 0)
 359                 ++dev;
 360         return err;
 361 }
 362
 363 static struct pci_driver oxygen_driver = {
 364         .name = "CMI8788",
 365         .id_table = oxygen_ids,
 366         .probe = generic_oxygen_probe,
 367         .remove = __devexit_p(oxygen_pci_remove),
 368 #ifdef CONFIG_PM
 369         .suspend = oxygen_pci_suspend,
 370         .resume = oxygen_pci_resume,
 371 #endif
 372 };
 373
 374 static int __init alsa_card_oxygen_init(void)
 375 {
 376         return pci_register_driver(&oxygen_driver);
 377 }
 378
 379 static void __exit alsa_card_oxygen_exit(void)
 380 {
 381         pci_unregister_driver(&oxygen_driver);
 382 }
 383
 384 module_init(alsa_card_oxygen_init)
 385 module_exit(alsa_card_oxygen_exit)