kernel/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
  39 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  40 MODULE_DESCRIPTION("Studio Evolution SE6X driver");
  41 MODULE_LICENSE("GPL v2");
  42 MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}");
  43
  44 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  45 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  46 static bool 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 const struct pci_device_id se6x_ids[] = {
  56         { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
  57         { }
  58 };
  59 MODULE_DEVICE_TABLE(pci, se6x_ids);
  60
  61 static 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
  69 static 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
  77 static void se6x_cleanup(struct oxygen *chip)
  78 {
  79 }
  80
  81 static 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
  87 static void set_pcm1804_params(struct oxygen *chip,
  88                                struct snd_pcm_hw_params *params)
  89 {
  90 }
  91
  92 static 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
 100 static 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
 122 static 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
 129 static 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
 147 static 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
 160 module_pci_driver(se6x_driver);