LXR linux/sound/pci/oxygen/se6x.c

   1/*
   2 * C-Media CMI8787 driver for the Studio Evolution SE6X
   3 *
   4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
   5 *
   6 *  This driver is free software; you can redistribute it and/or modify
   7 *  it under the terms of the GNU General Public License, version 2.
   8 *
   9 *  This driver is distributed in the hope that it will be useful,
  10 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 *  GNU General Public License for more details.
  13 *
  14 *  You should have received a copy of the GNU General Public License
  15 *  along with this driver; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18/*
  19 * CMI8787:
  20 *
  21 *   SPI    -> microcontroller (not actually used)
  22 *   GPIO 0 -> do.
  23 *   GPIO 2 -> do.
  24 *
  25 *   DAC0   -> both PCM1792A (L+R, each in mono mode)
  26 *   ADC1  <-  1st PCM1804
  27 *   ADC2  <-  2nd PCM1804
  28 *   ADC3  <-  3rd PCM1804
  29 */
  30
  31#include <linux/pci.h>
  32#include <linux/module.h>
  33#include <sound/core.h>
  34#include <sound/control.h>
  35#include <sound/initval.h>
  36#include <sound/pcm.h>
  37#include "oxygen.h"
  38
  39MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  40MODULE_DESCRIPTION("Studio Evolution SE6X driver");
  41MODULE_LICENSE("GPL v2");
  42MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}");
  43
  44static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  45static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  46static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  47
  48module_param_array(index, int, NULL, 0444);
  49MODULE_PARM_DESC(index, "card index");
  50module_param_array(id, charp, NULL, 0444);
  51MODULE_PARM_DESC(id, "ID string");
  52module_param_array(enable, bool, NULL, 0444);
  53MODULE_PARM_DESC(enable, "enable card");
  54
  55static const struct pci_device_id se6x_ids[] = {
  56        { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
  57        { }
  58};
  59MODULE_DEVICE_TABLE(pci, se6x_ids);
  60
  61static void se6x_init(struct oxygen *chip)
  62{
  63        oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x005);
  64
  65        snd_component_add(chip->card, "PCM1792A");
  66        snd_component_add(chip->card, "PCM1804");
  67}
  68
  69static int se6x_control_filter(struct snd_kcontrol_new *template)
  70{
  71        /* no DAC volume/mute */
  72        if (!strncmp(template->name, "Master Playback ", 16))
  73                return 1;
  74        return 0;
  75}
  76
  77static void se6x_cleanup(struct oxygen *chip)
  78{
  79}
  80
  81static void set_pcm1792a_params(struct oxygen *chip,
  82                                struct snd_pcm_hw_params *params)
  83{
  84        /* nothing to do (the microcontroller monitors DAC_LRCK) */
  85}
  86
  87static void set_pcm1804_params(struct oxygen *chip,
  88                               struct snd_pcm_hw_params *params)
  89{
  90}
  91
  92static unsigned int se6x_adjust_dac_routing(struct oxygen *chip,
  93                                            unsigned int play_routing)
  94{
  95        /* route the same stereo pair to DAC0 and DAC1 */
  96        return ( play_routing       & OXYGEN_PLAY_DAC0_SOURCE_MASK) |
  97               ((play_routing << 2) & OXYGEN_PLAY_DAC1_SOURCE_MASK);
  98}
  99
 100static const struct oxygen_model model_se6x = {
 101        .shortname = "Studio Evolution SE6X",
 102        .longname = "C-Media Oxygen HD Audio",
 103        .chip = "CMI8787",
 104        .init = se6x_init,
 105        .control_filter = se6x_control_filter,
 106        .cleanup = se6x_cleanup,
 107        .set_dac_params = set_pcm1792a_params,
 108        .set_adc_params = set_pcm1804_params,
 109        .adjust_dac_routing = se6x_adjust_dac_routing,
 110        .device_config = PLAYBACK_0_TO_I2S |
 111                         CAPTURE_0_FROM_I2S_1 |
 112                         CAPTURE_2_FROM_I2S_2 |
 113                         CAPTURE_3_FROM_I2S_3,
 114        .dac_channels_pcm = 2,
 115        .function_flags = OXYGEN_FUNCTION_SPI,
 116        .dac_mclks = OXYGEN_MCLKS(256, 128, 128),
 117        .adc_mclks = OXYGEN_MCLKS(256, 256, 128),
 118        .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 119        .adc_i2s_format = OXYGEN_I2S_FORMAT_I2S,
 120};
 121
 122static int se6x_get_model(struct oxygen *chip,
 123                          const struct pci_device_id *pci_id)
 124{
 125        chip->model = model_se6x;
 126        return 0;
 127}
 128
 129static int se6x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 130{
 131        static int dev;
 132        int err;
 133
 134        if (dev >= SNDRV_CARDS)
 135                return -ENODEV;
 136        if (!enable[dev]) {
 137                ++dev;
 138                return -ENOENT;
 139        }
 140        err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
 141                               se6x_ids, se6x_get_model);
 142        if (err >= 0)
 143                ++dev;
 144        return err;
 145}
 146
 147static struct pci_driver se6x_driver = {
 148        .name = KBUILD_MODNAME,
 149        .id_table = se6x_ids,
 150        .probe = se6x_probe,
 151        .remove = oxygen_pci_remove,
 152#ifdef CONFIG_PM_SLEEP
 153        .driver = {
 154                .pm = &oxygen_pci_pm,
 155        },
 156#endif
 157        .shutdown = oxygen_pci_shutdown,
 158};
 159
 160module_pci_driver(se6x_driver);
 161