sound/pci/oxygen/se6x.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * C-Media CMI8787 driver for the Studio Evolution SE6X
   4  *
   5  * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
   6  */
   7
   8 /*
   9  * CMI8787:
  10  *
  11  *   SPI    -> microcontroller (not actually used)
  12  *   GPIO 0 -> do.
  13  *   GPIO 2 -> do.
  14  *
  15  *   DAC0   -> both PCM1792A (L+R, each in mono mode)
  16  *   ADC1  <-  1st PCM1804
  17  *   ADC2  <-  2nd PCM1804
  18  *   ADC3  <-  3rd PCM1804
  19  */
  20
  21 #include <linux/pci.h>
  22 #include <linux/module.h>
  23 #include <sound/core.h>
  24 #include <sound/control.h>
  25 #include <sound/initval.h>
  26 #include <sound/pcm.h>
  27 #include "oxygen.h"
  28
  29 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  30 MODULE_DESCRIPTION("Studio Evolution SE6X driver");
  31 MODULE_LICENSE("GPL v2");
  32
  33 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  34 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  35 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  36
  37 module_param_array(index, int, NULL, 0444);
  38 MODULE_PARM_DESC(index, "card index");
  39 module_param_array(id, charp, NULL, 0444);
  40 MODULE_PARM_DESC(id, "ID string");
  41 module_param_array(enable, bool, NULL, 0444);
  42 MODULE_PARM_DESC(enable, "enable card");
  43
  44 static const struct pci_device_id se6x_ids[] = {
  45         { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
  46         { }
  47 };
  48 MODULE_DEVICE_TABLE(pci, se6x_ids);
  49
  50 static void se6x_init(struct oxygen *chip)
  51 {
  52         oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x005);
  53
  54         snd_component_add(chip->card, "PCM1792A");
  55         snd_component_add(chip->card, "PCM1804");
  56 }
  57
  58 static int se6x_control_filter(struct snd_kcontrol_new *template)
  59 {
  60         /* no DAC volume/mute */
  61         if (!strncmp(template->name, "Master Playback ", 16))
  62                 return 1;
  63         return 0;
  64 }
  65
  66 static void se6x_cleanup(struct oxygen *chip)
  67 {
  68 }
  69
  70 static void set_pcm1792a_params(struct oxygen *chip,
  71                                 struct snd_pcm_hw_params *params)
  72 {
  73         /* nothing to do (the microcontroller monitors DAC_LRCK) */
  74 }
  75
  76 static void set_pcm1804_params(struct oxygen *chip,
  77                                struct snd_pcm_hw_params *params)
  78 {
  79 }
  80
  81 static unsigned int se6x_adjust_dac_routing(struct oxygen *chip,
  82                                             unsigned int play_routing)
  83 {
  84         /* route the same stereo pair to DAC0 and DAC1 */
  85         return ( play_routing       & OXYGEN_PLAY_DAC0_SOURCE_MASK) |
  86                ((play_routing << 2) & OXYGEN_PLAY_DAC1_SOURCE_MASK);
  87 }
  88
  89 static const struct oxygen_model model_se6x = {
  90         .shortname = "Studio Evolution SE6X",
  91         .longname = "C-Media Oxygen HD Audio",
  92         .chip = "CMI8787",
  93         .init = se6x_init,
  94         .control_filter = se6x_control_filter,
  95         .cleanup = se6x_cleanup,
  96         .set_dac_params = set_pcm1792a_params,
  97         .set_adc_params = set_pcm1804_params,
  98         .adjust_dac_routing = se6x_adjust_dac_routing,
  99         .device_config = PLAYBACK_0_TO_I2S |
 100                          CAPTURE_0_FROM_I2S_1 |
 101                          CAPTURE_2_FROM_I2S_2 |
 102                          CAPTURE_3_FROM_I2S_3,
 103         .dac_channels_pcm = 2,
 104         .function_flags = OXYGEN_FUNCTION_SPI,
 105         .dac_mclks = OXYGEN_MCLKS(256, 128, 128),
 106         .adc_mclks = OXYGEN_MCLKS(256, 256, 128),
 107         .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 108         .adc_i2s_format = OXYGEN_I2S_FORMAT_I2S,
 109 };
 110
 111 static int se6x_get_model(struct oxygen *chip,
 112                           const struct pci_device_id *pci_id)
 113 {
 114         chip->model = model_se6x;
 115         return 0;
 116 }
 117
 118 static int se6x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 119 {
 120         static int dev;
 121         int err;
 122
 123         if (dev >= SNDRV_CARDS)
 124                 return -ENODEV;
 125         if (!enable[dev]) {
 126                 ++dev;
 127                 return -ENOENT;
 128         }
 129         err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
 130                                se6x_ids, se6x_get_model);
 131         if (err >= 0)
 132                 ++dev;
 133         return err;
 134 }
 135
 136 static struct pci_driver se6x_driver = {
 137         .name = KBUILD_MODNAME,
 138         .id_table = se6x_ids,
 139         .probe = se6x_probe,
 140 #ifdef CONFIG_PM_SLEEP
 141         .driver = {
 142                 .pm = &oxygen_pci_pm,
 143         },
 144 #endif
 145         .shutdown = oxygen_pci_shutdown,
 146 };
 147
 148 module_pci_driver(se6x_driver);