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
29 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
30 MODULE_DESCRIPTION("Studio Evolution SE6X driver");
31 MODULE_LICENSE("GPL v2");
32 MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}");
33
34 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
35 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
36 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
37
38 module_param_array(index, int, NULL, 0444);
39 MODULE_PARM_DESC(index, "card index");
40 module_param_array(id, charp, NULL, 0444);
41 MODULE_PARM_DESC(id, "ID string");
42 module_param_array(enable, bool, NULL, 0444);
43 MODULE_PARM_DESC(enable, "enable card");
44
45 static const struct pci_device_id se6x_ids[] = {
46 { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
47 { }
48 };
49 MODULE_DEVICE_TABLE(pci, se6x_ids);
50
se6x_init(struct oxygen * chip)51 static 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
se6x_control_filter(struct snd_kcontrol_new * template)59 static 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
se6x_cleanup(struct oxygen * chip)67 static void se6x_cleanup(struct oxygen *chip)
68 {
69 }
70
set_pcm1792a_params(struct oxygen * chip,struct snd_pcm_hw_params * params)71 static 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
set_pcm1804_params(struct oxygen * chip,struct snd_pcm_hw_params * params)77 static void set_pcm1804_params(struct oxygen *chip,
78 struct snd_pcm_hw_params *params)
79 {
80 }
81
se6x_adjust_dac_routing(struct oxygen * chip,unsigned int play_routing)82 static 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
90 static 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
se6x_get_model(struct oxygen * chip,const struct pci_device_id * pci_id)112 static 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
se6x_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)119 static 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
137 static 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
150 module_pci_driver(se6x_driver);
151