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Linux/sound/pci/oxygen/se6x.c

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  1 /*
  2  * C-Media CMI8787 driver for the Studio Evolution SE6X
  3  *
  4  * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
  5  *
  6  *  This driver is free software; you can redistribute it and/or modify
  7  *  it under the terms of the GNU General Public License, version 2.
  8  *
  9  *  This driver is distributed in the hope that it will be useful,
 10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 12  *  GNU General Public License for more details.
 13  *
 14  *  You should have received a copy of the GNU General Public License
 15  *  along with this driver; if not, see <http://www.gnu.org/licenses/>.
 16  */
 17 
 18 /*
 19  * CMI8787:
 20  *
 21  *   SPI    -> microcontroller (not actually used)
 22  *   GPIO 0 -> do.
 23  *   GPIO 2 -> do.
 24  *
 25  *   DAC0   -> both PCM1792A (L+R, each in mono mode)
 26  *   ADC1  <-  1st PCM1804
 27  *   ADC2  <-  2nd PCM1804
 28  *   ADC3  <-  3rd PCM1804
 29  */
 30 
 31 #include <linux/pci.h>
 32 #include <linux/module.h>
 33 #include <sound/core.h>
 34 #include <sound/control.h>
 35 #include <sound/initval.h>
 36 #include <sound/pcm.h>
 37 #include "oxygen.h"
 38 
 39 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
 40 MODULE_DESCRIPTION("Studio Evolution SE6X driver");
 41 MODULE_LICENSE("GPL v2");
 42 MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}");
 43 
 44 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 45 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 46 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 47 
 48 module_param_array(index, int, NULL, 0444);
 49 MODULE_PARM_DESC(index, "card index");
 50 module_param_array(id, charp, NULL, 0444);
 51 MODULE_PARM_DESC(id, "ID string");
 52 module_param_array(enable, bool, NULL, 0444);
 53 MODULE_PARM_DESC(enable, "enable card");
 54 
 55 static const struct pci_device_id se6x_ids[] = {
 56         { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
 57         { }
 58 };
 59 MODULE_DEVICE_TABLE(pci, se6x_ids);
 60 
 61 static void se6x_init(struct oxygen *chip)
 62 {
 63         oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x005);
 64 
 65         snd_component_add(chip->card, "PCM1792A");
 66         snd_component_add(chip->card, "PCM1804");
 67 }
 68 
 69 static int se6x_control_filter(struct snd_kcontrol_new *template)
 70 {
 71         /* no DAC volume/mute */
 72         if (!strncmp(template->name, "Master Playback ", 16))
 73                 return 1;
 74         return 0;
 75 }
 76 
 77 static void se6x_cleanup(struct oxygen *chip)
 78 {
 79 }
 80 
 81 static void set_pcm1792a_params(struct oxygen *chip,
 82                                 struct snd_pcm_hw_params *params)
 83 {
 84         /* nothing to do (the microcontroller monitors DAC_LRCK) */
 85 }
 86 
 87 static void set_pcm1804_params(struct oxygen *chip,
 88                                struct snd_pcm_hw_params *params)
 89 {
 90 }
 91 
 92 static unsigned int se6x_adjust_dac_routing(struct oxygen *chip,
 93                                             unsigned int play_routing)
 94 {
 95         /* route the same stereo pair to DAC0 and DAC1 */
 96         return ( play_routing       & OXYGEN_PLAY_DAC0_SOURCE_MASK) |
 97                ((play_routing << 2) & OXYGEN_PLAY_DAC1_SOURCE_MASK);
 98 }
 99 
100 static const struct oxygen_model model_se6x = {
101         .shortname = "Studio Evolution SE6X",
102         .longname = "C-Media Oxygen HD Audio",
103         .chip = "CMI8787",
104         .init = se6x_init,
105         .control_filter = se6x_control_filter,
106         .cleanup = se6x_cleanup,
107         .set_dac_params = set_pcm1792a_params,
108         .set_adc_params = set_pcm1804_params,
109         .adjust_dac_routing = se6x_adjust_dac_routing,
110         .device_config = PLAYBACK_0_TO_I2S |
111                          CAPTURE_0_FROM_I2S_1 |
112                          CAPTURE_2_FROM_I2S_2 |
113                          CAPTURE_3_FROM_I2S_3,
114         .dac_channels_pcm = 2,
115         .function_flags = OXYGEN_FUNCTION_SPI,
116         .dac_mclks = OXYGEN_MCLKS(256, 128, 128),
117         .adc_mclks = OXYGEN_MCLKS(256, 256, 128),
118         .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
119         .adc_i2s_format = OXYGEN_I2S_FORMAT_I2S,
120 };
121 
122 static int se6x_get_model(struct oxygen *chip,
123                           const struct pci_device_id *pci_id)
124 {
125         chip->model = model_se6x;
126         return 0;
127 }
128 
129 static int se6x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
130 {
131         static int dev;
132         int err;
133 
134         if (dev >= SNDRV_CARDS)
135                 return -ENODEV;
136         if (!enable[dev]) {
137                 ++dev;
138                 return -ENOENT;
139         }
140         err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
141                                se6x_ids, se6x_get_model);
142         if (err >= 0)
143                 ++dev;
144         return err;
145 }
146 
147 static struct pci_driver se6x_driver = {
148         .name = KBUILD_MODNAME,
149         .id_table = se6x_ids,
150         .probe = se6x_probe,
151         .remove = oxygen_pci_remove,
152 #ifdef CONFIG_PM_SLEEP
153         .driver = {
154                 .pm = &oxygen_pci_pm,
155         },
156 #endif
157         .shutdown = oxygen_pci_shutdown,
158 };
159 
160 module_pci_driver(se6x_driver);
161 

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