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// SPDX-License-Identifier: GPL-2.0-only
/*
* C-Media CMI8787 driver for the Studio Evolution SE6X
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
*/
/*
* CMI8787:
*
* SPI -> microcontroller (not actually used)
* GPIO 0 -> do.
* GPIO 2 -> do.
*
* DAC0 -> both PCM1792A (L+R, each in mono mode)
* ADC1 <- 1st PCM1804
* ADC2 <- 2nd PCM1804
* ADC3 <- 3rd PCM1804
*/
#include <linux/pci.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include "oxygen.h"
MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_DESCRIPTION("Studio Evolution SE6X driver");
MODULE_LICENSE("GPL v2");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "card index");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "enable card");
static const struct pci_device_id se6x_ids[] = {
{ OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
{ }
};
MODULE_DEVICE_TABLE(pci, se6x_ids);
static void se6x_init(struct oxygen *chip)
{
oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x005);
snd_component_add(chip->card, "PCM1792A");
snd_component_add(chip->card, "PCM1804");
}
static int se6x_control_filter(struct snd_kcontrol_new *template)
{
/* no DAC volume/mute */
if (!strncmp(template->name, "Master Playback ", 16))
return 1;
return 0;
}
static void se6x_cleanup(struct oxygen *chip)
{
}
static void set_pcm1792a_params(struct oxygen *chip,
struct snd_pcm_hw_params *params)
{
/* nothing to do (the microcontroller monitors DAC_LRCK) */
}
static void set_pcm1804_params(struct oxygen *chip,
struct snd_pcm_hw_params *params)
{
}
static unsigned int se6x_adjust_dac_routing(struct oxygen *chip,
unsigned int play_routing)
{
/* route the same stereo pair to DAC0 and DAC1 */
return ( play_routing & OXYGEN_PLAY_DAC0_SOURCE_MASK) |
((play_routing << 2) & OXYGEN_PLAY_DAC1_SOURCE_MASK);
}
static const struct oxygen_model model_se6x = {
.shortname = "Studio Evolution SE6X",
.longname = "C-Media Oxygen HD Audio",
.chip = "CMI8787",
.init = se6x_init,
.control_filter = se6x_control_filter,
.cleanup = se6x_cleanup,
.set_dac_params = set_pcm1792a_params,
.set_adc_params = set_pcm1804_params,
.adjust_dac_routing = se6x_adjust_dac_routing,
.device_config = PLAYBACK_0_TO_I2S |
CAPTURE_0_FROM_I2S_1 |
CAPTURE_2_FROM_I2S_2 |
CAPTURE_3_FROM_I2S_3,
.dac_channels_pcm = 2,
.function_flags = OXYGEN_FUNCTION_SPI,
.dac_mclks = OXYGEN_MCLKS(256, 128, 128),
.adc_mclks = OXYGEN_MCLKS(256, 256, 128),
.dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
.adc_i2s_format = OXYGEN_I2S_FORMAT_I2S,
};
static int se6x_get_model(struct oxygen *chip,
const struct pci_device_id *pci_id)
{
chip->model = model_se6x;
return 0;
}
static int se6x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
static int dev;
int err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
++dev;
return -ENOENT;
}
err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
se6x_ids, se6x_get_model);
if (err >= 0)
++dev;
return err;
}
static struct pci_driver se6x_driver = {
.name = KBUILD_MODNAME,
.id_table = se6x_ids,
.probe = se6x_probe,
#ifdef CONFIG_PM_SLEEP
.driver = {
.pm = &oxygen_pci_pm,
},
#endif
.shutdown = oxygen_pci_shutdown,
};
module_pci_driver(se6x_driver);
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