LXR linux/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
  29MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  30MODULE_DESCRIPTION("Studio Evolution SE6X driver");
  31MODULE_LICENSE("GPL v2");
  32
  33static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  34static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  35static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  36
  37module_param_array(index, int, NULL, 0444);
  38MODULE_PARM_DESC(index, "card index");
  39module_param_array(id, charp, NULL, 0444);
  40MODULE_PARM_DESC(id, "ID string");
  41module_param_array(enable, bool, NULL, 0444);
  42MODULE_PARM_DESC(enable, "enable card");
  43
  44static const struct pci_device_id se6x_ids[] = {
  45        { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
  46        { }
  47};
  48MODULE_DEVICE_TABLE(pci, se6x_ids);
  49
  50static 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
  58static 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
  66static void se6x_cleanup(struct oxygen *chip)
  67{
  68}
  69
  70static 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
  76static void set_pcm1804_params(struct oxygen *chip,
  77                               struct snd_pcm_hw_params *params)
  78{
  79}
  80
  81static 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
  89static 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
 111static 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
 118static 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
 136static struct pci_driver se6x_driver = {
 137        .name = KBUILD_MODNAME,
 138        .id_table = se6x_ids,
 139        .probe = se6x_probe,
 140        .remove = oxygen_pci_remove,
 141#ifdef CONFIG_PM_SLEEP
 142        .driver = {
 143                .pm = &oxygen_pci_pm,
 144        },
 145#endif
 146        .shutdown = oxygen_pci_shutdown,
 147};
 148
 149module_pci_driver(se6x_driver);
 150