1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
/*
* mx27vis-aic32x4.c
*
* Copyright 2011 Vista Silicon S.L.
*
* Author: Javier Martin <javier.martin@vista-silicon.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include <asm/mach-types.h>
#include <mach/iomux-mx27.h>
#include "../codecs/tlv320aic32x4.h"
#include "imx-ssi.h"
#include "imx-audmux.h"
#define MX27VIS_AMP_GAIN 0
#define MX27VIS_AMP_MUTE 1
#define MX27VIS_PIN_G0 (GPIO_PORTF + 9)
#define MX27VIS_PIN_G1 (GPIO_PORTF + 8)
#define MX27VIS_PIN_SDL (GPIO_PORTE + 5)
#define MX27VIS_PIN_SDR (GPIO_PORTF + 7)
static int mx27vis_amp_gain;
static int mx27vis_amp_mute;
static const int mx27vis_amp_pins[] = {
MX27VIS_PIN_G0 | GPIO_GPIO | GPIO_OUT,
MX27VIS_PIN_G1 | GPIO_GPIO | GPIO_OUT,
MX27VIS_PIN_SDL | GPIO_GPIO | GPIO_OUT,
MX27VIS_PIN_SDR | GPIO_GPIO | GPIO_OUT,
};
static int mx27vis_aic32x4_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int ret;
u32 dai_format;
dai_format = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM;
/* set codec DAI configuration */
snd_soc_dai_set_fmt(codec_dai, dai_format);
/* set cpu DAI configuration */
snd_soc_dai_set_fmt(cpu_dai, dai_format);
ret = snd_soc_dai_set_sysclk(codec_dai, 0,
25000000, SND_SOC_CLOCK_OUT);
if (ret) {
pr_err("%s: failed setting codec sysclk\n", __func__);
return ret;
}
ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
SND_SOC_CLOCK_IN);
if (ret) {
pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
return ret;
}
return 0;
}
static struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
.hw_params = mx27vis_aic32x4_hw_params,
};
static int mx27vis_amp_set(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
int value = ucontrol->value.integer.value[0];
unsigned int reg = mc->reg;
int max = mc->max;
if (value > max)
return -EINVAL;
switch (reg) {
case MX27VIS_AMP_GAIN:
gpio_set_value(MX27VIS_PIN_G0, value & 1);
gpio_set_value(MX27VIS_PIN_G1, value >> 1);
mx27vis_amp_gain = value;
break;
case MX27VIS_AMP_MUTE:
gpio_set_value(MX27VIS_PIN_SDL, value & 1);
gpio_set_value(MX27VIS_PIN_SDR, value >> 1);
mx27vis_amp_mute = value;
break;
}
return 0;
}
static int mx27vis_amp_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
unsigned int reg = mc->reg;
switch (reg) {
case MX27VIS_AMP_GAIN:
ucontrol->value.integer.value[0] = mx27vis_amp_gain;
break;
case MX27VIS_AMP_MUTE:
ucontrol->value.integer.value[0] = mx27vis_amp_mute;
break;
}
return 0;
}
/* From 6dB to 24dB in steps of 6dB */
static const DECLARE_TLV_DB_SCALE(mx27vis_amp_tlv, 600, 600, 0);
static const struct snd_kcontrol_new mx27vis_aic32x4_controls[] = {
SOC_DAPM_PIN_SWITCH("External Mic"),
SOC_SINGLE_EXT_TLV("LO Ext Boost", MX27VIS_AMP_GAIN, 0, 3, 0,
mx27vis_amp_get, mx27vis_amp_set, mx27vis_amp_tlv),
SOC_DOUBLE_EXT("LO Ext Mute Switch", MX27VIS_AMP_MUTE, 0, 1, 1, 0,
mx27vis_amp_get, mx27vis_amp_set),
};
static const struct snd_soc_dapm_widget aic32x4_dapm_widgets[] = {
SND_SOC_DAPM_MIC("External Mic", NULL),
};
static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = {
{"Mic Bias", NULL, "External Mic"},
{"IN1_R", NULL, "Mic Bias"},
{"IN2_R", NULL, "Mic Bias"},
{"IN3_R", NULL, "Mic Bias"},
{"IN1_L", NULL, "Mic Bias"},
{"IN2_L", NULL, "Mic Bias"},
{"IN3_L", NULL, "Mic Bias"},
};
static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
.name = "tlv320aic32x4",
.stream_name = "TLV320AIC32X4",
.codec_dai_name = "tlv320aic32x4-hifi",
.platform_name = "imx-pcm-audio.0",
.codec_name = "tlv320aic32x4.0-0018",
.cpu_dai_name = "imx-ssi.0",
.ops = &mx27vis_aic32x4_snd_ops,
};
static struct snd_soc_card mx27vis_aic32x4 = {
.name = "visstrim_m10-audio",
.owner = THIS_MODULE,
.dai_link = &mx27vis_aic32x4_dai,
.num_links = 1,
.controls = mx27vis_aic32x4_controls,
.num_controls = ARRAY_SIZE(mx27vis_aic32x4_controls),
.dapm_widgets = aic32x4_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(aic32x4_dapm_widgets),
.dapm_routes = aic32x4_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
};
static int __devinit mx27vis_aic32x4_probe(struct platform_device *pdev)
{
int ret;
mx27vis_aic32x4.dev = &pdev->dev;
ret = snd_soc_register_card(&mx27vis_aic32x4);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
ret);
return ret;
}
/* Connect SSI0 as clock slave to SSI1 external pins */
imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
IMX_AUDMUX_V1_PCR_SYN |
IMX_AUDMUX_V1_PCR_TFSDIR |
IMX_AUDMUX_V1_PCR_TCLKDIR |
IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
);
imx_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
IMX_AUDMUX_V1_PCR_SYN |
IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
);
ret = mxc_gpio_setup_multiple_pins(mx27vis_amp_pins,
ARRAY_SIZE(mx27vis_amp_pins), "MX27VIS_AMP");
if (ret)
printk(KERN_ERR "ASoC: unable to setup gpios\n");
return ret;
}
static int __devexit mx27vis_aic32x4_remove(struct platform_device *pdev)
{
snd_soc_unregister_card(&mx27vis_aic32x4);
return 0;
}
static struct platform_driver mx27vis_aic32x4_audio_driver = {
.driver = {
.name = "mx27vis",
.owner = THIS_MODULE,
},
.probe = mx27vis_aic32x4_probe,
.remove = __devexit_p(mx27vis_aic32x4_remove),
};
module_platform_driver(mx27vis_aic32x4_audio_driver);
MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:mx27vis");
|
