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53c098bfc5
Add a driver for an embedded sound card. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
161 lines
4.1 KiB
C
161 lines
4.1 KiB
C
/*
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* C-Media CMI8787 driver for the Studio Evolution SE6X
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*
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* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
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*
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* This driver is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2.
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*
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* This driver is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this driver; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* CMI8787:
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*
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* SPI -> microcontroller (not actually used)
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* GPIO 0 -> do.
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* GPIO 2 -> do.
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*
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* DAC0 -> both PCM1792A (L+R, each in mono mode)
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* ADC1 <- 1st PCM1804
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* ADC2 <- 2nd PCM1804
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* ADC3 <- 3rd PCM1804
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*/
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#include <linux/pci.h>
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#include <linux/module.h>
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#include <sound/core.h>
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#include <sound/control.h>
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#include <sound/initval.h>
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#include <sound/pcm.h>
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#include "oxygen.h"
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MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
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MODULE_DESCRIPTION("Studio Evolution SE6X driver");
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MODULE_LICENSE("GPL v2");
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MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}");
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "card index");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "enable card");
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static const struct pci_device_id se6x_ids[] = {
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{ OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
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{ }
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};
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MODULE_DEVICE_TABLE(pci, se6x_ids);
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static void se6x_init(struct oxygen *chip)
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{
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oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x005);
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snd_component_add(chip->card, "PCM1792A");
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snd_component_add(chip->card, "PCM1804");
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}
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static int se6x_control_filter(struct snd_kcontrol_new *template)
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{
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/* no DAC volume/mute */
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if (!strncmp(template->name, "Master Playback ", 16))
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return 1;
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return 0;
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}
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static void se6x_cleanup(struct oxygen *chip)
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{
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}
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static void set_pcm1792a_params(struct oxygen *chip,
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struct snd_pcm_hw_params *params)
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{
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/* nothing to do (the microcontroller monitors DAC_LRCK) */
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}
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static void set_pcm1804_params(struct oxygen *chip,
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struct snd_pcm_hw_params *params)
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{
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}
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static unsigned int se6x_adjust_dac_routing(struct oxygen *chip,
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unsigned int play_routing)
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{
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/* route the same stereo pair to DAC0 and DAC1 */
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return ( play_routing & OXYGEN_PLAY_DAC0_SOURCE_MASK) |
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((play_routing << 2) & OXYGEN_PLAY_DAC1_SOURCE_MASK);
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}
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static const struct oxygen_model model_se6x = {
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.shortname = "Studio Evolution SE6X",
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.longname = "C-Media Oxygen HD Audio",
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.chip = "CMI8787",
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.init = se6x_init,
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.control_filter = se6x_control_filter,
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.cleanup = se6x_cleanup,
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.set_dac_params = set_pcm1792a_params,
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.set_adc_params = set_pcm1804_params,
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.adjust_dac_routing = se6x_adjust_dac_routing,
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.device_config = PLAYBACK_0_TO_I2S |
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CAPTURE_0_FROM_I2S_1 |
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CAPTURE_2_FROM_I2S_2 |
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CAPTURE_3_FROM_I2S_3,
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.dac_channels_pcm = 2,
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.function_flags = OXYGEN_FUNCTION_SPI,
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.dac_mclks = OXYGEN_MCLKS(256, 128, 128),
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.adc_mclks = OXYGEN_MCLKS(256, 256, 128),
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.dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
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.adc_i2s_format = OXYGEN_I2S_FORMAT_I2S,
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};
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static int se6x_get_model(struct oxygen *chip,
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const struct pci_device_id *pci_id)
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{
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chip->model = model_se6x;
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return 0;
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}
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static int se6x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
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{
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static int dev;
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int err;
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if (dev >= SNDRV_CARDS)
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return -ENODEV;
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if (!enable[dev]) {
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++dev;
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return -ENOENT;
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}
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err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
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se6x_ids, se6x_get_model);
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if (err >= 0)
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++dev;
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return err;
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}
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static struct pci_driver se6x_driver = {
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.name = KBUILD_MODNAME,
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.id_table = se6x_ids,
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.probe = se6x_probe,
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.remove = oxygen_pci_remove,
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#ifdef CONFIG_PM_SLEEP
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.driver = {
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.pm = &oxygen_pci_pm,
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},
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#endif
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.shutdown = oxygen_pci_shutdown,
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};
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module_pci_driver(se6x_driver);
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