root/sound/pci/oxygen/se6x.c

DEFINITIONS

1. se6x_init
2. se6x_control_filter
3. se6x_cleanup
4. set_pcm1792a_params
5. set_pcm1804_params
6. se6x_adjust_dac_routing
7. se6x_get_model
8. se6x_probe

   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 MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}");
  33 
  34 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  35 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  36 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  37 
  38 module_param_array(index, int, NULL, 0444);
  39 MODULE_PARM_DESC(index, "card index");
  40 module_param_array(id, charp, NULL, 0444);
  41 MODULE_PARM_DESC(id, "ID string");
  42 module_param_array(enable, bool, NULL, 0444);
  43 MODULE_PARM_DESC(enable, "enable card");
  44 
  45 static const struct pci_device_id se6x_ids[] = {
  46         { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
  47         { }
  48 };
  49 MODULE_DEVICE_TABLE(pci, se6x_ids);
  50 
  51 static void se6x_init(struct oxygen *chip)
  52 {
  53         oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x005);
  54 
  55         snd_component_add(chip->card, "PCM1792A");
  56         snd_component_add(chip->card, "PCM1804");
  57 }
  58 
  59 static int se6x_control_filter(struct snd_kcontrol_new *template)
  60 {
  61         /* no DAC volume/mute */
  62         if (!strncmp(template->name, "Master Playback ", 16))
  63                 return 1;
  64         return 0;
  65 }
  66 
  67 static void se6x_cleanup(struct oxygen *chip)
  68 {
  69 }
  70 
  71 static void set_pcm1792a_params(struct oxygen *chip,
  72                                 struct snd_pcm_hw_params *params)
  73 {
  74         /* nothing to do (the microcontroller monitors DAC_LRCK) */
  75 }
  76 
  77 static void set_pcm1804_params(struct oxygen *chip,
  78                                struct snd_pcm_hw_params *params)
  79 {
  80 }
  81 
  82 static unsigned int se6x_adjust_dac_routing(struct oxygen *chip,
  83                                             unsigned int play_routing)
  84 {
  85         /* route the same stereo pair to DAC0 and DAC1 */
  86         return ( play_routing       & OXYGEN_PLAY_DAC0_SOURCE_MASK) |
  87                ((play_routing << 2) & OXYGEN_PLAY_DAC1_SOURCE_MASK);
  88 }
  89 
  90 static const struct oxygen_model model_se6x = {
  91         .shortname = "Studio Evolution SE6X",
  92         .longname = "C-Media Oxygen HD Audio",
  93         .chip = "CMI8787",
  94         .init = se6x_init,
  95         .control_filter = se6x_control_filter,
  96         .cleanup = se6x_cleanup,
  97         .set_dac_params = set_pcm1792a_params,
  98         .set_adc_params = set_pcm1804_params,
  99         .adjust_dac_routing = se6x_adjust_dac_routing,
 100         .device_config = PLAYBACK_0_TO_I2S |
 101                          CAPTURE_0_FROM_I2S_1 |
 102                          CAPTURE_2_FROM_I2S_2 |
 103                          CAPTURE_3_FROM_I2S_3,
 104         .dac_channels_pcm = 2,
 105         .function_flags = OXYGEN_FUNCTION_SPI,
 106         .dac_mclks = OXYGEN_MCLKS(256, 128, 128),
 107         .adc_mclks = OXYGEN_MCLKS(256, 256, 128),
 108         .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 109         .adc_i2s_format = OXYGEN_I2S_FORMAT_I2S,
 110 };
 111 
 112 static int se6x_get_model(struct oxygen *chip,
 113                           const struct pci_device_id *pci_id)
 114 {
 115         chip->model = model_se6x;
 116         return 0;
 117 }
 118 
 119 static int se6x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 120 {
 121         static int dev;
 122         int err;
 123 
 124         if (dev >= SNDRV_CARDS)
 125                 return -ENODEV;
 126         if (!enable[dev]) {
 127                 ++dev;
 128                 return -ENOENT;
 129         }
 130         err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
 131                                se6x_ids, se6x_get_model);
 132         if (err >= 0)
 133                 ++dev;
 134         return err;
 135 }
 136 
 137 static struct pci_driver se6x_driver = {
 138         .name = KBUILD_MODNAME,
 139         .id_table = se6x_ids,
 140         .probe = se6x_probe,
 141         .remove = oxygen_pci_remove,
 142 #ifdef CONFIG_PM_SLEEP
 143         .driver = {
 144                 .pm = &oxygen_pci_pm,
 145         },
 146 #endif
 147         .shutdown = oxygen_pci_shutdown,
 148 };
 149 
 150 module_pci_driver(se6x_driver);