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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * C-Media CMI8787 driver for the Studio Evolution SE6X4 *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 PCM180417 * ADC2 <- 2nd PCM180418 * ADC3 <- 3rd PCM180419 */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#ifdef CONFIG_PM_SLEEP141 .driver = {142 .pm = &oxygen_pci_pm,143 },144#endif145 .shutdown = oxygen_pci_shutdown,146};147 148module_pci_driver(se6x_driver);149