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