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
33 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
34 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
35 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
36
37 module_param_array(index, int, NULL, 0444);
38 MODULE_PARM_DESC(index, "card index");
39 module_param_array(id, charp, NULL, 0444);
40 MODULE_PARM_DESC(id, "ID string");
41 module_param_array(enable, bool, NULL, 0444);
42 MODULE_PARM_DESC(enable, "enable card");
43
44 static const struct pci_device_id se6x_ids[] = {
45 { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
46 { }
47 };
48 MODULE_DEVICE_TABLE(pci, se6x_ids);
49
50 static void se6x_init(struct oxygen *chip)
51 {
52 oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x005);
53
54 snd_component_add(chip->card, "PCM1792A");
55 snd_component_add(chip->card, "PCM1804");
56 }
57
58 static int se6x_control_filter(struct snd_kcontrol_new *template)
59 {
60 /* no DAC volume/mute */
61 if (!strncmp(template->name, "Master Playback ", 16))
62 return 1;
63 return 0;
64 }
65
66 static void se6x_cleanup(struct oxygen *chip)
67 {
68 }
69
70 static void set_pcm1792a_params(struct oxygen *chip,
71 struct snd_pcm_hw_params *params)
72 {
73 /* nothing to do (the microcontroller monitors DAC_LRCK) */
74 }
75
76 static void set_pcm1804_params(struct oxygen *chip,
77 struct snd_pcm_hw_params *params)
78 {
79 }
80
81 static unsigned int se6x_adjust_dac_routing(struct oxygen *chip,
82 unsigned int play_routing)
83 {
84 /* route the same stereo pair to DAC0 and DAC1 */
85 return ( play_routing & OXYGEN_PLAY_DAC0_SOURCE_MASK) |
86 ((play_routing << 2) & OXYGEN_PLAY_DAC1_SOURCE_MASK);
87 }
88
89 static const struct oxygen_model model_se6x = {
90 .shortname = "Studio Evolution SE6X",
91 .longname = "C-Media Oxygen HD Audio",
92 .chip = "CMI8787",
93 .init = se6x_init,
94 .control_filter = se6x_control_filter,
95 .cleanup = se6x_cleanup,
96 .set_dac_params = set_pcm1792a_params,
97 .set_adc_params = set_pcm1804_params,
98 .adjust_dac_routing = se6x_adjust_dac_routing,
99 .device_config = PLAYBACK_0_TO_I2S |
100 CAPTURE_0_FROM_I2S_1 |
101 CAPTURE_2_FROM_I2S_2 |
102 CAPTURE_3_FROM_I2S_3,
103 .dac_channels_pcm = 2,
104 .function_flags = OXYGEN_FUNCTION_SPI,
105 .dac_mclks = OXYGEN_MCLKS(256, 128, 128),
106 .adc_mclks = OXYGEN_MCLKS(256, 256, 128),
107 .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
108 .adc_i2s_format = OXYGEN_I2S_FORMAT_I2S,
109 };
110
111 static int se6x_get_model(struct oxygen *chip,
112 const struct pci_device_id *pci_id)
113 {
114 chip->model = model_se6x;
115 return 0;
116 }
117
118 static int se6x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
119 {
120 static int dev;
121 int err;
122
123 if (dev >= SNDRV_CARDS)
124 return -ENODEV;
125 if (!enable[dev]) {
126 ++dev;
127 return -ENOENT;
128 }
129 err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
130 se6x_ids, se6x_get_model);
131 if (err >= 0)
132 ++dev;
133 return err;
134 }
135
136 static struct pci_driver se6x_driver = {
137 .name = KBUILD_MODNAME,
138 .id_table = se6x_ids,
139 .probe = se6x_probe,
140 #ifdef CONFIG_PM_SLEEP
141 .driver = {
142 .pm = &oxygen_pci_pm,
143 },
144 #endif
145 .shutdown = oxygen_pci_shutdown,
146 };
147
148 module_pci_driver(se6x_driver);
149
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