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/pci.h>
  32 #include <sound/control.h>
  33 #include <sound/core.h>
  34 #include <sound/initval.h>
  35 #include <sound/pcm.h>
  36 #include <sound/pcm_params.h>
  37 #include <sound/tlv.h>
  38 #include "oxygen.h"
  39
  40 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  41 MODULE_DESCRIPTION("C-Media CMI8788 driver");
  42 MODULE_LICENSE("GPL");
  43 MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8788}}");
  44
  45 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  46 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  47 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  48
  49 module_param_array(index, int, NULL, 0444);
  50 MODULE_PARM_DESC(index, "card index");
  51 module_param_array(id, charp, NULL, 0444);
  52 MODULE_PARM_DESC(id, "ID string");
  53 module_param_array(enable, bool, NULL, 0444);
  54 MODULE_PARM_DESC(enable, "enable card");
  55
  56 static struct pci_device_id oxygen_ids[] __devinitdata = {
  57         { OXYGEN_PCI_SUBID(0x10b0, 0x0216) },
  58         { OXYGEN_PCI_SUBID(0x10b0, 0x0218) },
  59         { OXYGEN_PCI_SUBID(0x10b0, 0x0219) },
  60         { OXYGEN_PCI_SUBID(0x13f6, 0x0001) },
  61         { OXYGEN_PCI_SUBID(0x13f6, 0x0010) },
  62         { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
  63         { OXYGEN_PCI_SUBID(0x147a, 0xa017) },
  64         { OXYGEN_PCI_SUBID(0x14c3, 0x1710) },
  65         { OXYGEN_PCI_SUBID(0x14c3, 0x1711) },
  66         { OXYGEN_PCI_SUBID(0x1a58, 0x0910) },
  67         { OXYGEN_PCI_SUBID(0x415a, 0x5431), .driver_data = 1 },
  68         { OXYGEN_PCI_SUBID(0x7284, 0x9761) },
  69         { }
  70 };
  71 MODULE_DEVICE_TABLE(pci, oxygen_ids);
  72
  73 #define AK4396_WRITE    0x2000
  74
  75 /* register 0 */
  76 #define AK4396_RSTN             0x01
  77 #define AK4396_DIF_24_MSB       0x04
  78 /* register 1 */
  79 #define AK4396_SMUTE            0x01
  80 #define AK4396_DEM_OFF          0x02
  81 #define AK4396_DFS_MASK         0x18
  82 #define AK4396_DFS_NORMAL       0x00
  83 #define AK4396_DFS_DOUBLE       0x08
  84 #define AK4396_DFS_QUAD         0x10
  85
  86 /* register 0 */
  87 #define WM8785_OSR_SINGLE       0x000
  88 #define WM8785_OSR_DOUBLE       0x008
  89 #define WM8785_OSR_QUAD         0x010
  90 #define WM8785_FORMAT_LJUST     0x020
  91 #define WM8785_FORMAT_I2S       0x040
  92 /* register 1 */
  93 #define WM8785_WL_16            0x000
  94 #define WM8785_WL_20            0x001
  95 #define WM8785_WL_24            0x002
  96 #define WM8785_WL_32            0x003
  97
  98 static void ak4396_write(struct oxygen *chip, unsigned int codec,
  99                          u8 reg, u8 value)
 100 {
 101         /* maps ALSA channel pair number to SPI output */
 102         static const u8 codec_spi_map[4] = {
 103                 0, 1, 2, 4
 104         };
 105         oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER_WRITE |
 106                          OXYGEN_SPI_DATA_LENGTH_2 |
 107                          (codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
 108                          OXYGEN_SPI_MAGIC,
 109                          AK4396_WRITE | (reg << 8) | value);
 110 }
 111
 112 static void wm8785_write(struct oxygen *chip, u8 reg, unsigned int value)
 113 {
 114         oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER_WRITE |
 115                          OXYGEN_SPI_DATA_LENGTH_2 |
 116                          (3 << OXYGEN_SPI_CODEC_SHIFT),
 117                          (reg << 9) | value);
 118 }
 119
 120 static void ak4396_init(struct oxygen *chip)
 121 {
 122         unsigned int i;
 123
 124         chip->ak4396_reg1 = AK4396_DEM_OFF | AK4396_DFS_NORMAL;
 125         for (i = 0; i < 4; ++i) {
 126                 ak4396_write(chip, i, 0, AK4396_DIF_24_MSB | AK4396_RSTN);
 127                 ak4396_write(chip, i, 1, chip->ak4396_reg1);
 128                 ak4396_write(chip, i, 2, 0);
 129                 ak4396_write(chip, i, 3, 0xff);
 130                 ak4396_write(chip, i, 4, 0xff);
 131         }
 132         snd_component_add(chip->card, "AK4396");
 133 }
 134
 135 static void ak5385_init(struct oxygen *chip)
 136 {
 137         oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x0003);
 138         oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, 0x0003);
 139         snd_component_add(chip->card, "AK5385");
 140 }
 141
 142 static void wm8785_init(struct oxygen *chip)
 143 {
 144         wm8785_write(chip, 7, 0);
 145         wm8785_write(chip, 0, WM8785_FORMAT_LJUST | WM8785_OSR_SINGLE);
 146         wm8785_write(chip, 1, WM8785_WL_24);
 147         snd_component_add(chip->card, "WM8785");
 148 }
 149
 150 static void generic_init(struct oxygen *chip)
 151 {
 152         ak4396_init(chip);
 153         wm8785_init(chip);
 154 }
 155
 156 static void meridian_init(struct oxygen *chip)
 157 {
 158         ak4396_init(chip);
 159         ak5385_init(chip);
 160 }
 161
 162 static void generic_cleanup(struct oxygen *chip)
 163 {
 164 }
 165
 166 static void set_ak4396_params(struct oxygen *chip,
 167                               struct snd_pcm_hw_params *params)
 168 {
 169         unsigned int i;
 170         u8 value;
 171
 172         value = chip->ak4396_reg1 & ~AK4396_DFS_MASK;
 173         if (params_rate(params) <= 54000)
 174                 value |= AK4396_DFS_NORMAL;
 175         else if (params_rate(params) < 120000)
 176                 value |= AK4396_DFS_DOUBLE;
 177         else
 178                 value |= AK4396_DFS_QUAD;
 179         chip->ak4396_reg1 = value;
 180         for (i = 0; i < 4; ++i) {
 181                 ak4396_write(chip, i, 0, AK4396_DIF_24_MSB);
 182                 ak4396_write(chip, i, 1, value);
 183                 ak4396_write(chip, i, 0, AK4396_DIF_24_MSB | AK4396_RSTN);
 184         }
 185 }
 186
 187 static void update_ak4396_volume(struct oxygen *chip)
 188 {
 189         unsigned int i;
 190
 191         for (i = 0; i < 4; ++i) {
 192                 ak4396_write(chip, i, 3, chip->dac_volume[i * 2]);
 193                 ak4396_write(chip, i, 4, chip->dac_volume[i * 2 + 1]);
 194         }
 195 }
 196
 197 static void update_ak4396_mute(struct oxygen *chip)
 198 {
 199         unsigned int i;
 200         u8 value;
 201
 202         value = chip->ak4396_reg1 & ~AK4396_SMUTE;
 203         if (chip->dac_mute)
 204                 value |= AK4396_SMUTE;
 205         for (i = 0; i < 4; ++i)
 206                 ak4396_write(chip, i, 1, value);
 207 }
 208
 209 static void set_wm8785_params(struct oxygen *chip,
 210                               struct snd_pcm_hw_params *params)
 211 {
 212         unsigned int value;
 213
 214         wm8785_write(chip, 7, 0);
 215
 216         value = WM8785_FORMAT_LJUST;
 217         if (params_rate(params) == 96000)
 218                 value |= WM8785_OSR_DOUBLE;
 219         else if (params_rate(params) == 192000)
 220                 value |= WM8785_OSR_QUAD;
 221         else
 222                 value |= WM8785_OSR_SINGLE;
 223         wm8785_write(chip, 0, value);
 224
 225         if (snd_pcm_format_width(params_format(params)) <= 16)
 226                 value = WM8785_WL_16;
 227         else
 228                 value = WM8785_WL_24;
 229         wm8785_write(chip, 1, value);
 230 }
 231
 232 static void set_ak5385_params(struct oxygen *chip,
 233                               struct snd_pcm_hw_params *params)
 234 {
 235         unsigned int value;
 236
 237         if (params_rate(params) <= 54000)
 238                 value = 0;
 239         else if (params_rate(params) <= 108000)
 240                 value = 1;
 241         else
 242                 value = 2;
 243         oxygen_write16_masked(chip, OXYGEN_GPIO_DATA, value, 0x0003);
 244 }
 245
 246 static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0);
 247
 248 static int ak4396_control_filter(struct snd_kcontrol_new *template)
 249 {
 250         if (!strcmp(template->name, "Master Playback Volume")) {
 251                 template->access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 252                 template->tlv.p = ak4396_db_scale;
 253         }
 254         return 0;
 255 }
 256
 257 static const struct oxygen_model model_generic = {
 258         .shortname = "C-Media CMI8788",
 259         .longname = "C-Media Oxygen HD Audio",
 260         .chip = "CMI8788",
 261         .owner = THIS_MODULE,
 262         .init = generic_init,
 263         .control_filter = ak4396_control_filter,
 264         .cleanup = generic_cleanup,
 265         .set_dac_params = set_ak4396_params,
 266         .set_adc_params = set_wm8785_params,
 267         .update_dac_volume = update_ak4396_volume,
 268         .update_dac_mute = update_ak4396_mute,
 269         .used_channels = OXYGEN_CHANNEL_A |
 270                          OXYGEN_CHANNEL_C |
 271                          OXYGEN_CHANNEL_SPDIF |
 272                          OXYGEN_CHANNEL_MULTICH |
 273                          OXYGEN_CHANNEL_AC97,
 274         .function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5,
 275 };
 276 static const struct oxygen_model model_meridian = {
 277         .shortname = "C-Media CMI8788",
 278         .longname = "C-Media Oxygen HD Audio",
 279         .chip = "CMI8788",
 280         .owner = THIS_MODULE,
 281         .init = meridian_init,
 282         .control_filter = ak4396_control_filter,
 283         .cleanup = generic_cleanup,
 284         .set_dac_params = set_ak4396_params,
 285         .set_adc_params = set_ak5385_params,
 286         .update_dac_volume = update_ak4396_volume,
 287         .update_dac_mute = update_ak4396_mute,
 288         .used_channels = OXYGEN_CHANNEL_B |
 289                          OXYGEN_CHANNEL_C |
 290                          OXYGEN_CHANNEL_SPDIF |
 291                          OXYGEN_CHANNEL_MULTICH |
 292                          OXYGEN_CHANNEL_AC97,
 293         .function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5,
 294 };
 295
 296 static int __devinit generic_oxygen_probe(struct pci_dev *pci,
 297                                           const struct pci_device_id *pci_id)
 298 {
 299         static int dev;
 300         const struct oxygen_model *model;
 301         int err;
 302
 303         if (dev >= SNDRV_CARDS)
 304                 return -ENODEV;
 305         if (!enable[dev]) {
 306                 ++dev;
 307                 return -ENOENT;
 308         }
 309         model = pci_id->driver_data ? &model_meridian : &model_generic;
 310         err = oxygen_pci_probe(pci, index[dev], id[dev], model);
 311         if (err >= 0)
 312                 ++dev;
 313         return err;
 314 }
 315
 316 static struct pci_driver oxygen_driver = {
 317         .name = "CMI8788",
 318         .id_table = oxygen_ids,
 319         .probe = generic_oxygen_probe,
 320         .remove = __devexit_p(oxygen_pci_remove),
 321 };
 322
 323 static int __init alsa_card_oxygen_init(void)
 324 {
 325         return pci_register_driver(&oxygen_driver);
 326 }
 327
 328 static void __exit alsa_card_oxygen_exit(void)
 329 {
 330         pci_unregister_driver(&oxygen_driver);
 331 }
 332
 333 module_init(alsa_card_oxygen_init)
 334 module_exit(alsa_card_oxygen_exit)