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
39MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
40MODULE_DESCRIPTION("Studio Evolution SE6X driver");
41MODULE_LICENSE("GPL v2");
42MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}");
43
44static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
45static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
46static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
47
48module_param_array(index, int, NULL, 0444);
49MODULE_PARM_DESC(index, "card index");
50module_param_array(id, charp, NULL, 0444);
51MODULE_PARM_DESC(id, "ID string");
52module_param_array(enable, bool, NULL, 0444);
53MODULE_PARM_DESC(enable, "enable card");
54
55static const struct pci_device_id se6x_ids[] = {
56	{ OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
57	{ }
58};
59MODULE_DEVICE_TABLE(pci, se6x_ids);
60
61static 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
69static 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
77static void se6x_cleanup(struct oxygen *chip)
78{
79}
80
81static 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
87static void set_pcm1804_params(struct oxygen *chip,
88			       struct snd_pcm_hw_params *params)
89{
90}
91
92static 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
100static 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
122static 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
129static 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
147static 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
160module_pci_driver(se6x_driver);
161