SAFE public projects git trees. - safe/jmp/linux-2.6/blob - sound/pci/oxygen/hifier.c

   1 /*
   2  * C-Media CMI8788 driver for the MediaTek/TempoTec HiFier Fantasia
   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  * CMI8788:
  22  *
  23  * SPI 0 -> AK4396
  24  */
  25
  26 #include <linux/delay.h>
  27 #include <linux/pci.h>
  28 #include <sound/control.h>
  29 #include <sound/core.h>
  30 #include <sound/initval.h>
  31 #include <sound/pcm.h>
  32 #include <sound/tlv.h>
  33 #include "oxygen.h"
  34 #include "ak4396.h"
  35
  36 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  37 MODULE_DESCRIPTION("TempoTec HiFier driver");
  38 MODULE_LICENSE("GPL v2");
  39
  40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  42 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  43
  44 module_param_array(index, int, NULL, 0444);
  45 MODULE_PARM_DESC(index, "card index");
  46 module_param_array(id, charp, NULL, 0444);
  47 MODULE_PARM_DESC(id, "ID string");
  48 module_param_array(enable, bool, NULL, 0444);
  49 MODULE_PARM_DESC(enable, "enable card");
  50
  51 static struct pci_device_id hifier_ids[] __devinitdata = {
  52         { OXYGEN_PCI_SUBID(0x14c3, 0x1710) },
  53         { OXYGEN_PCI_SUBID(0x14c3, 0x1711) },
  54         { OXYGEN_PCI_SUBID_BROKEN_EEPROM },
  55         { }
  56 };
  57 MODULE_DEVICE_TABLE(pci, hifier_ids);
  58
  59 struct hifier_data {
  60         u8 ak4396_regs[5];
  61 };
  62
  63 static void ak4396_write(struct oxygen *chip, u8 reg, u8 value)
  64 {
  65         struct hifier_data *data = chip->model_data;
  66
  67         oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER  |
  68                          OXYGEN_SPI_DATA_LENGTH_2 |
  69                          OXYGEN_SPI_CLOCK_160 |
  70                          (0 << OXYGEN_SPI_CODEC_SHIFT) |
  71                          OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
  72                          AK4396_WRITE | (reg << 8) | value);
  73         data->ak4396_regs[reg] = value;
  74 }
  75
  76 static void ak4396_write_cached(struct oxygen *chip, u8 reg, u8 value)
  77 {
  78         struct hifier_data *data = chip->model_data;
  79
  80         if (value != data->ak4396_regs[reg])
  81                 ak4396_write(chip, reg, value);
  82 }
  83
  84 static void hifier_registers_init(struct oxygen *chip)
  85 {
  86         struct hifier_data *data = chip->model_data;
  87
  88         ak4396_write(chip, AK4396_CONTROL_1, AK4396_DIF_24_MSB | AK4396_RSTN);
  89         ak4396_write(chip, AK4396_CONTROL_2,
  90                      data->ak4396_regs[AK4396_CONTROL_2]);
  91         ak4396_write(chip, AK4396_CONTROL_3, AK4396_PCM);
  92         ak4396_write(chip, AK4396_LCH_ATT, chip->dac_volume[0]);
  93         ak4396_write(chip, AK4396_RCH_ATT, chip->dac_volume[1]);
  94 }
  95
  96 static void hifier_init(struct oxygen *chip)
  97 {
  98         struct hifier_data *data = chip->model_data;
  99
 100         data->ak4396_regs[AK4396_CONTROL_2] =
 101                 AK4396_SMUTE | AK4396_DEM_OFF | AK4396_DFS_NORMAL;
 102         hifier_registers_init(chip);
 103
 104         snd_component_add(chip->card, "AK4396");
 105         snd_component_add(chip->card, "CS5340");
 106 }
 107
 108 static void hifier_cleanup(struct oxygen *chip)
 109 {
 110 }
 111
 112 static void hifier_resume(struct oxygen *chip)
 113 {
 114         hifier_registers_init(chip);
 115 }
 116
 117 static void set_ak4396_params(struct oxygen *chip,
 118                                struct snd_pcm_hw_params *params)
 119 {
 120         struct hifier_data *data = chip->model_data;
 121         u8 value;
 122
 123         value = data->ak4396_regs[AK4396_CONTROL_2] & ~AK4396_DFS_MASK;
 124         if (params_rate(params) <= 54000)
 125                 value |= AK4396_DFS_NORMAL;
 126         else if (params_rate(params) <= 108000)
 127                 value |= AK4396_DFS_DOUBLE;
 128         else
 129                 value |= AK4396_DFS_QUAD;
 130
 131         msleep(1); /* wait for the new MCLK to become stable */
 132
 133         if (value != data->ak4396_regs[AK4396_CONTROL_2]) {
 134                 ak4396_write(chip, AK4396_CONTROL_1,
 135                              AK4396_DIF_24_MSB);
 136                 ak4396_write(chip, AK4396_CONTROL_2, value);
 137                 ak4396_write(chip, AK4396_CONTROL_1,
 138                              AK4396_DIF_24_MSB | AK4396_RSTN);
 139         }
 140 }
 141
 142 static void update_ak4396_volume(struct oxygen *chip)
 143 {
 144         ak4396_write_cached(chip, AK4396_LCH_ATT, chip->dac_volume[0]);
 145         ak4396_write_cached(chip, AK4396_RCH_ATT, chip->dac_volume[1]);
 146 }
 147
 148 static void update_ak4396_mute(struct oxygen *chip)
 149 {
 150         struct hifier_data *data = chip->model_data;
 151         u8 value;
 152
 153         value = data->ak4396_regs[AK4396_CONTROL_2] & ~AK4396_SMUTE;
 154         if (chip->dac_mute)
 155                 value |= AK4396_SMUTE;
 156         ak4396_write_cached(chip, AK4396_CONTROL_2, value);
 157 }
 158
 159 static void set_cs5340_params(struct oxygen *chip,
 160                               struct snd_pcm_hw_params *params)
 161 {
 162 }
 163
 164 static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0);
 165
 166 static const struct oxygen_model model_hifier = {
 167         .shortname = "C-Media CMI8787",
 168         .longname = "C-Media Oxygen HD Audio",
 169         .chip = "CMI8788",
 170         .init = hifier_init,
 171         .cleanup = hifier_cleanup,
 172         .resume = hifier_resume,
 173         .get_i2s_mclk = oxygen_default_i2s_mclk,
 174         .set_dac_params = set_ak4396_params,
 175         .set_adc_params = set_cs5340_params,
 176         .update_dac_volume = update_ak4396_volume,
 177         .update_dac_mute = update_ak4396_mute,
 178         .dac_tlv = ak4396_db_scale,
 179         .model_data_size = sizeof(struct hifier_data),
 180         .device_config = PLAYBACK_0_TO_I2S |
 181                          PLAYBACK_1_TO_SPDIF |
 182                          CAPTURE_0_FROM_I2S_1,
 183         .dac_channels = 2,
 184         .dac_volume_min = 0,
 185         .dac_volume_max = 255,
 186         .function_flags = OXYGEN_FUNCTION_SPI,
 187         .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 188         .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 189 };
 190
 191 static int __devinit get_hifier_model(struct oxygen *chip,
 192                                       const struct pci_device_id *id)
 193 {
 194         chip->model = model_hifier;
 195         return 0;
 196 }
 197
 198 static int __devinit hifier_probe(struct pci_dev *pci,
 199                                   const struct pci_device_id *pci_id)
 200 {
 201         static int dev;
 202         int err;
 203
 204         if (dev >= SNDRV_CARDS)
 205                 return -ENODEV;
 206         if (!enable[dev]) {
 207                 ++dev;
 208                 return -ENOENT;
 209         }
 210         err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
 211                                hifier_ids, get_hifier_model);
 212         if (err >= 0)
 213                 ++dev;
 214         return err;
 215 }
 216
 217 static struct pci_driver hifier_driver = {
 218         .name = "CMI8787HiFier",
 219         .id_table = hifier_ids,
 220         .probe = hifier_probe,
 221         .remove = __devexit_p(oxygen_pci_remove),
 222 #ifdef CONFIG_PM
 223         .suspend = oxygen_pci_suspend,
 224         .resume = oxygen_pci_resume,
 225 #endif
 226 };
 227
 228 static int __init alsa_card_hifier_init(void)
 229 {
 230         return pci_register_driver(&hifier_driver);
 231 }
 232
 233 static void __exit alsa_card_hifier_exit(void)
 234 {
 235         pci_unregister_driver(&hifier_driver);
 236 }
 237
 238 module_init(alsa_card_hifier_init)
 239 module_exit(alsa_card_hifier_exit)