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
|
/*
* Copyright 2012 Freescale Semiconductor, Inc.
* Copyright 2012 Linaro Ltd.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/i2c.h>
#include <linux/of_gpio.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include "imx-audmux.h"
#define DAI_NAME_SIZE 32
#define MUX_PORT_MAX 7
struct imx_es8328_data {
struct device *dev;
struct snd_soc_dai_link dai;
struct snd_soc_card card;
char codec_dai_name[DAI_NAME_SIZE];
char platform_name[DAI_NAME_SIZE];
int jack_gpio;
};
static struct snd_soc_jack_gpio headset_jack_gpios[] = {
{
.gpio = -1,
.name = "headset-gpio",
.report = SND_JACK_HEADSET,
.invert = 0,
.debounce_time = 200,
},
};
static struct snd_soc_jack headset_jack;
static int imx_es8328_dai_init(struct snd_soc_pcm_runtime *rtd)
{
struct imx_es8328_data *data = container_of(rtd->card,
struct imx_es8328_data, card);
int ret = 0;
/* Headphone jack detection */
if (gpio_is_valid(data->jack_gpio)) {
ret = snd_soc_jack_new(rtd->codec, "Headphone",
SND_JACK_HEADPHONE | SND_JACK_BTN_0,
&headset_jack);
if (ret)
return ret;
headset_jack_gpios[0].gpio = data->jack_gpio;
ret = snd_soc_jack_add_gpios(&headset_jack,
ARRAY_SIZE(headset_jack_gpios),
headset_jack_gpios);
}
return ret;
}
static const struct snd_soc_dapm_widget imx_es8328_dapm_widgets[] = {
SND_SOC_DAPM_MIC("Mic Jack", NULL),
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_REGULATOR_SUPPLY("audio-amp", 1, 0),
};
static int imx_es8328_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct device_node *ssi_np, *codec_np;
struct platform_device *ssi_pdev;
struct imx_es8328_data *data;
u32 int_port, ext_port;
int ret;
struct device *dev = &pdev->dev;
ret = of_property_read_u32(np, "mux-int-port", &int_port);
if (ret) {
dev_err(dev, "mux-int-port missing or invalid\n");
goto fail;
}
if (int_port > MUX_PORT_MAX || int_port == 0) {
dev_err(dev, "mux-int-port: hardware only has %d mux ports\n",
MUX_PORT_MAX);
goto fail;
}
ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
if (ret) {
dev_err(dev, "mux-ext-port missing or invalid\n");
goto fail;
}
if (ext_port > MUX_PORT_MAX || ext_port == 0) {
dev_err(dev, "mux-ext-port: hardware only has %d mux ports\n",
MUX_PORT_MAX);
goto fail;
}
/*
* The port numbering in the hardware manual starts at 1, while
* the audmux API expects it starts at 0.
*/
int_port--;
ext_port--;
ret = imx_audmux_v2_configure_port(int_port,
IMX_AUDMUX_V2_PTCR_SYN |
IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
IMX_AUDMUX_V2_PTCR_TFSDIR |
IMX_AUDMUX_V2_PTCR_TCLKDIR,
IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
if (ret) {
dev_err(dev, "audmux internal port setup failed\n");
return ret;
}
ret = imx_audmux_v2_configure_port(ext_port,
IMX_AUDMUX_V2_PTCR_SYN,
IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
if (ret) {
dev_err(dev, "audmux external port setup failed\n");
return ret;
}
ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0);
codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
if (!ssi_np || !codec_np) {
dev_err(dev, "phandle missing or invalid\n");
ret = -EINVAL;
goto fail;
}
ssi_pdev = of_find_device_by_node(ssi_np);
if (!ssi_pdev) {
dev_err(dev, "failed to find SSI platform device\n");
ret = -EINVAL;
goto fail;
}
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data) {
ret = -ENOMEM;
goto fail;
}
data->dev = dev;
data->jack_gpio = of_get_named_gpio(pdev->dev.of_node, "jack-gpio", 0);
data->dai.name = "hifi";
data->dai.stream_name = "hifi";
data->dai.codec_dai_name = "es8328-hifi-analog";
data->dai.codec_of_node = codec_np;
data->dai.cpu_of_node = ssi_np;
data->dai.platform_of_node = ssi_np;
data->dai.init = &imx_es8328_dai_init;
data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM;
data->card.dev = dev;
data->card.dapm_widgets = imx_es8328_dapm_widgets;
data->card.num_dapm_widgets = ARRAY_SIZE(imx_es8328_dapm_widgets);
ret = snd_soc_of_parse_card_name(&data->card, "model");
if (ret) {
dev_err(dev, "Unable to parse card name\n");
goto fail;
}
ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
if (ret) {
dev_err(dev, "Unable to parse routing: %d\n", ret);
goto fail;
}
data->card.num_links = 1;
data->card.owner = THIS_MODULE;
data->card.dai_link = &data->dai;
ret = snd_soc_register_card(&data->card);
if (ret) {
dev_err(dev, "Unable to register: %d\n", ret);
goto fail;
}
platform_set_drvdata(pdev, data);
fail:
of_node_put(ssi_np);
of_node_put(codec_np);
return ret;
}
static int imx_es8328_remove(struct platform_device *pdev)
{
struct imx_es8328_data *data = platform_get_drvdata(pdev);
snd_soc_jack_free_gpios(&headset_jack, ARRAY_SIZE(headset_jack_gpios),
headset_jack_gpios);
snd_soc_unregister_card(&data->card);
return 0;
}
static const struct of_device_id imx_es8328_dt_ids[] = {
{ .compatible = "fsl,imx-audio-es8328", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, imx_es8328_dt_ids);
static struct platform_driver imx_es8328_driver = {
.driver = {
.name = "imx-es8328",
.of_match_table = imx_es8328_dt_ids,
},
.probe = imx_es8328_probe,
.remove = imx_es8328_remove,
};
module_platform_driver(imx_es8328_driver);
MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");
MODULE_DESCRIPTION("Kosagi i.MX6 ES8328 ASoC machine driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:imx-audio-es8328");
|
