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-rw-r--r--sound/soc/fsl/mx27vis-aic32x4.c245
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diff --git a/sound/soc/fsl/mx27vis-aic32x4.c b/sound/soc/fsl/mx27vis-aic32x4.c
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1/*
2 * mx27vis-aic32x4.c
3 *
4 * Copyright 2011 Vista Silicon S.L.
5 *
6 * Author: Javier Martin <javier.martin@vista-silicon.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301, USA.
22 */
23
24#include <linux/module.h>
25#include <linux/moduleparam.h>
26#include <linux/device.h>
27#include <linux/i2c.h>
28#include <linux/gpio.h>
29#include <sound/core.h>
30#include <sound/pcm.h>
31#include <sound/soc.h>
32#include <sound/soc-dapm.h>
33#include <sound/tlv.h>
34#include <asm/mach-types.h>
35#include <mach/iomux-mx27.h>
36
37#include "../codecs/tlv320aic32x4.h"
38#include "imx-ssi.h"
39#include "imx-audmux.h"
40
41#define MX27VIS_AMP_GAIN 0
42#define MX27VIS_AMP_MUTE 1
43
44#define MX27VIS_PIN_G0 (GPIO_PORTF + 9)
45#define MX27VIS_PIN_G1 (GPIO_PORTF + 8)
46#define MX27VIS_PIN_SDL (GPIO_PORTE + 5)
47#define MX27VIS_PIN_SDR (GPIO_PORTF + 7)
48
49static int mx27vis_amp_gain;
50static int mx27vis_amp_mute;
51
52static const int mx27vis_amp_pins[] = {
53 MX27VIS_PIN_G0 | GPIO_GPIO | GPIO_OUT,
54 MX27VIS_PIN_G1 | GPIO_GPIO | GPIO_OUT,
55 MX27VIS_PIN_SDL | GPIO_GPIO | GPIO_OUT,
56 MX27VIS_PIN_SDR | GPIO_GPIO | GPIO_OUT,
57};
58
59static int mx27vis_aic32x4_hw_params(struct snd_pcm_substream *substream,
60 struct snd_pcm_hw_params *params)
61{
62 struct snd_soc_pcm_runtime *rtd = substream->private_data;
63 struct snd_soc_dai *codec_dai = rtd->codec_dai;
64 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
65 int ret;
66 u32 dai_format;
67
68 dai_format = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
69 SND_SOC_DAIFMT_CBM_CFM;
70
71 /* set codec DAI configuration */
72 snd_soc_dai_set_fmt(codec_dai, dai_format);
73
74 /* set cpu DAI configuration */
75 snd_soc_dai_set_fmt(cpu_dai, dai_format);
76
77 ret = snd_soc_dai_set_sysclk(codec_dai, 0,
78 25000000, SND_SOC_CLOCK_OUT);
79 if (ret) {
80 pr_err("%s: failed setting codec sysclk\n", __func__);
81 return ret;
82 }
83
84 ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
85 SND_SOC_CLOCK_IN);
86 if (ret) {
87 pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
88 return ret;
89 }
90
91 return 0;
92}
93
94static struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
95 .hw_params = mx27vis_aic32x4_hw_params,
96};
97
98static int mx27vis_amp_set(struct snd_kcontrol *kcontrol,
99 struct snd_ctl_elem_value *ucontrol)
100{
101 struct soc_mixer_control *mc =
102 (struct soc_mixer_control *)kcontrol->private_value;
103 int value = ucontrol->value.integer.value[0];
104 unsigned int reg = mc->reg;
105 int max = mc->max;
106
107 if (value > max)
108 return -EINVAL;
109
110 switch (reg) {
111 case MX27VIS_AMP_GAIN:
112 gpio_set_value(MX27VIS_PIN_G0, value & 1);
113 gpio_set_value(MX27VIS_PIN_G1, value >> 1);
114 mx27vis_amp_gain = value;
115 break;
116 case MX27VIS_AMP_MUTE:
117 gpio_set_value(MX27VIS_PIN_SDL, value & 1);
118 gpio_set_value(MX27VIS_PIN_SDR, value >> 1);
119 mx27vis_amp_mute = value;
120 break;
121 }
122 return 0;
123}
124
125static int mx27vis_amp_get(struct snd_kcontrol *kcontrol,
126 struct snd_ctl_elem_value *ucontrol)
127{
128 struct soc_mixer_control *mc =
129 (struct soc_mixer_control *)kcontrol->private_value;
130 unsigned int reg = mc->reg;
131
132 switch (reg) {
133 case MX27VIS_AMP_GAIN:
134 ucontrol->value.integer.value[0] = mx27vis_amp_gain;
135 break;
136 case MX27VIS_AMP_MUTE:
137 ucontrol->value.integer.value[0] = mx27vis_amp_mute;
138 break;
139 }
140 return 0;
141}
142
143/* From 6dB to 24dB in steps of 6dB */
144static const DECLARE_TLV_DB_SCALE(mx27vis_amp_tlv, 600, 600, 0);
145
146static const struct snd_kcontrol_new mx27vis_aic32x4_controls[] = {
147 SOC_DAPM_PIN_SWITCH("External Mic"),
148 SOC_SINGLE_EXT_TLV("LO Ext Boost", MX27VIS_AMP_GAIN, 0, 3, 0,
149 mx27vis_amp_get, mx27vis_amp_set, mx27vis_amp_tlv),
150 SOC_DOUBLE_EXT("LO Ext Mute Switch", MX27VIS_AMP_MUTE, 0, 1, 1, 0,
151 mx27vis_amp_get, mx27vis_amp_set),
152};
153
154static const struct snd_soc_dapm_widget aic32x4_dapm_widgets[] = {
155 SND_SOC_DAPM_MIC("External Mic", NULL),
156};
157
158static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = {
159 {"Mic Bias", NULL, "External Mic"},
160 {"IN1_R", NULL, "Mic Bias"},
161 {"IN2_R", NULL, "Mic Bias"},
162 {"IN3_R", NULL, "Mic Bias"},
163 {"IN1_L", NULL, "Mic Bias"},
164 {"IN2_L", NULL, "Mic Bias"},
165 {"IN3_L", NULL, "Mic Bias"},
166};
167
168static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
169 .name = "tlv320aic32x4",
170 .stream_name = "TLV320AIC32X4",
171 .codec_dai_name = "tlv320aic32x4-hifi",
172 .platform_name = "imx-pcm-audio.0",
173 .codec_name = "tlv320aic32x4.0-0018",
174 .cpu_dai_name = "imx-ssi.0",
175 .ops = &mx27vis_aic32x4_snd_ops,
176};
177
178static struct snd_soc_card mx27vis_aic32x4 = {
179 .name = "visstrim_m10-audio",
180 .owner = THIS_MODULE,
181 .dai_link = &mx27vis_aic32x4_dai,
182 .num_links = 1,
183 .controls = mx27vis_aic32x4_controls,
184 .num_controls = ARRAY_SIZE(mx27vis_aic32x4_controls),
185 .dapm_widgets = aic32x4_dapm_widgets,
186 .num_dapm_widgets = ARRAY_SIZE(aic32x4_dapm_widgets),
187 .dapm_routes = aic32x4_dapm_routes,
188 .num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
189};
190
191static int __devinit mx27vis_aic32x4_probe(struct platform_device *pdev)
192{
193 int ret;
194
195 mx27vis_aic32x4.dev = &pdev->dev;
196 ret = snd_soc_register_card(&mx27vis_aic32x4);
197 if (ret) {
198 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
199 ret);
200 return ret;
201 }
202
203 /* Connect SSI0 as clock slave to SSI1 external pins */
204 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
205 IMX_AUDMUX_V1_PCR_SYN |
206 IMX_AUDMUX_V1_PCR_TFSDIR |
207 IMX_AUDMUX_V1_PCR_TCLKDIR |
208 IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
209 IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
210 );
211 imx_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
212 IMX_AUDMUX_V1_PCR_SYN |
213 IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
214 );
215
216 ret = mxc_gpio_setup_multiple_pins(mx27vis_amp_pins,
217 ARRAY_SIZE(mx27vis_amp_pins), "MX27VIS_AMP");
218 if (ret)
219 printk(KERN_ERR "ASoC: unable to setup gpios\n");
220
221 return ret;
222}
223
224static int __devexit mx27vis_aic32x4_remove(struct platform_device *pdev)
225{
226 snd_soc_unregister_card(&mx27vis_aic32x4);
227
228 return 0;
229}
230
231static struct platform_driver mx27vis_aic32x4_audio_driver = {
232 .driver = {
233 .name = "mx27vis",
234 .owner = THIS_MODULE,
235 },
236 .probe = mx27vis_aic32x4_probe,
237 .remove = __devexit_p(mx27vis_aic32x4_remove),
238};
239
240module_platform_driver(mx27vis_aic32x4_audio_driver);
241
242MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
243MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
244MODULE_LICENSE("GPL");
245MODULE_ALIAS("platform:mx27vis");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-29 22:44:46 -0500