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");
 32MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}");
 33
 34static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 35static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 36static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 37
 38module_param_array(index, int, NULL, 0444);
 39MODULE_PARM_DESC(index, "card index");
 40module_param_array(id, charp, NULL, 0444);
 41MODULE_PARM_DESC(id, "ID string");
 42module_param_array(enable, bool, NULL, 0444);
 43MODULE_PARM_DESC(enable, "enable card");
 44
 45static const struct pci_device_id se6x_ids[] = {
 46	{ OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
 47	{ }
 48};
 49MODULE_DEVICE_TABLE(pci, se6x_ids);
 50
 51static 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
 59static 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
 67static void se6x_cleanup(struct oxygen *chip)
 68{
 69}
 70
 71static 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
 77static void set_pcm1804_params(struct oxygen *chip,
 78			       struct snd_pcm_hw_params *params)
 79{
 80}
 81
 82static 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
 90static 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
112static 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
119static 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
137static 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
150module_pci_driver(se6x_driver);