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12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/gpio.h>
15
16#include <sound/core.h>
17#include <sound/pcm.h>
18#include <sound/soc.h>
19#include <sound/soc-dapm.h>
20
21#include <mach/audio.h>
22#include <mach/eseries-gpio.h>
23
24#include <asm/mach-types.h>
25
26#include "../codecs/wm9705.h"
27#include "pxa2xx-pcm.h"
28#include "pxa2xx-ac97.h"
29
30
31#define E740_AUDIO_OUT 1
32#define E740_AUDIO_IN 2
33
34static int e740_audio_power;
35
36static void e740_sync_audio_power(int status)
37{
38 gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status);
39 gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0);
40 gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0);
41}
42
43static int e740_mic_amp_event(struct snd_soc_dapm_widget *w,
44 struct snd_kcontrol *kcontrol, int event)
45{
46 if (event & SND_SOC_DAPM_PRE_PMU)
47 e740_audio_power |= E740_AUDIO_IN;
48 else if (event & SND_SOC_DAPM_POST_PMD)
49 e740_audio_power &= ~E740_AUDIO_IN;
50
51 e740_sync_audio_power(e740_audio_power);
52
53 return 0;
54}
55
56static int e740_output_amp_event(struct snd_soc_dapm_widget *w,
57 struct snd_kcontrol *kcontrol, int event)
58{
59 if (event & SND_SOC_DAPM_PRE_PMU)
60 e740_audio_power |= E740_AUDIO_OUT;
61 else if (event & SND_SOC_DAPM_POST_PMD)
62 e740_audio_power &= ~E740_AUDIO_OUT;
63
64 e740_sync_audio_power(e740_audio_power);
65
66 return 0;
67}
68
69static const struct snd_soc_dapm_widget e740_dapm_widgets[] = {
70 SND_SOC_DAPM_HP("Headphone Jack", NULL),
71 SND_SOC_DAPM_SPK("Speaker", NULL),
72 SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
73 SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
74 e740_output_amp_event, SND_SOC_DAPM_PRE_PMU |
75 SND_SOC_DAPM_POST_PMD),
76 SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
77 e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU |
78 SND_SOC_DAPM_POST_PMD),
79};
80
81static const struct snd_soc_dapm_route audio_map[] = {
82 {"Output Amp", NULL, "LOUT"},
83 {"Output Amp", NULL, "ROUT"},
84 {"Output Amp", NULL, "MONOOUT"},
85
86 {"Speaker", NULL, "Output Amp"},
87 {"Headphone Jack", NULL, "Output Amp"},
88
89 {"MIC1", NULL, "Mic Amp"},
90 {"Mic Amp", NULL, "Mic (Internal)"},
91};
92
93static int e740_ac97_init(struct snd_soc_codec *codec)
94{
95 snd_soc_dapm_nc_pin(codec, "HPOUTL");
96 snd_soc_dapm_nc_pin(codec, "HPOUTR");
97 snd_soc_dapm_nc_pin(codec, "PHONE");
98 snd_soc_dapm_nc_pin(codec, "LINEINL");
99 snd_soc_dapm_nc_pin(codec, "LINEINR");
100 snd_soc_dapm_nc_pin(codec, "CDINL");
101 snd_soc_dapm_nc_pin(codec, "CDINR");
102 snd_soc_dapm_nc_pin(codec, "PCBEEP");
103 snd_soc_dapm_nc_pin(codec, "MIC2");
104
105 snd_soc_dapm_new_controls(codec, e740_dapm_widgets,
106 ARRAY_SIZE(e740_dapm_widgets));
107
108 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
109
110 snd_soc_dapm_sync(codec);
111
112 return 0;
113}
114
115static struct snd_soc_dai_link e740_dai[] = {
116 {
117 .name = "AC97",
118 .stream_name = "AC97 HiFi",
119 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
120 .codec_dai = &wm9705_dai[WM9705_DAI_AC97_HIFI],
121 .init = e740_ac97_init,
122 },
123 {
124 .name = "AC97 Aux",
125 .stream_name = "AC97 Aux",
126 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
127 .codec_dai = &wm9705_dai[WM9705_DAI_AC97_AUX],
128 },
129};
130
131static struct snd_soc_card e740 = {
132 .name = "Toshiba e740",
133 .platform = &pxa2xx_soc_platform,
134 .dai_link = e740_dai,
135 .num_links = ARRAY_SIZE(e740_dai),
136};
137
138static struct snd_soc_device e740_snd_devdata = {
139 .card = &e740,
140 .codec_dev = &soc_codec_dev_wm9705,
141};
142
143static struct platform_device *e740_snd_device;
144
145static int __init e740_init(void)
146{
147 int ret;
148
149 if (!machine_is_e740())
150 return -ENODEV;
151
152 ret = gpio_request(GPIO_E740_MIC_ON, "Mic amp");
153 if (ret)
154 return ret;
155
156 ret = gpio_request(GPIO_E740_AMP_ON, "Output amp");
157 if (ret)
158 goto free_mic_amp_gpio;
159
160 ret = gpio_request(GPIO_E740_WM9705_nAVDD2, "Audio power");
161 if (ret)
162 goto free_op_amp_gpio;
163
164
165 ret = gpio_direction_output(GPIO_E740_MIC_ON, 0);
166 if (ret)
167 goto free_apwr_gpio;
168 ret = gpio_direction_output(GPIO_E740_AMP_ON, 0);
169 if (ret)
170 goto free_apwr_gpio;
171 ret = gpio_direction_output(GPIO_E740_WM9705_nAVDD2, 1);
172 if (ret)
173 goto free_apwr_gpio;
174
175 e740_snd_device = platform_device_alloc("soc-audio", -1);
176 if (!e740_snd_device) {
177 ret = -ENOMEM;
178 goto free_apwr_gpio;
179 }
180
181 platform_set_drvdata(e740_snd_device, &e740_snd_devdata);
182 e740_snd_devdata.dev = &e740_snd_device->dev;
183 ret = platform_device_add(e740_snd_device);
184
185 if (!ret)
186 return 0;
187
188
189 platform_device_put(e740_snd_device);
190free_apwr_gpio:
191 gpio_free(GPIO_E740_WM9705_nAVDD2);
192free_op_amp_gpio:
193 gpio_free(GPIO_E740_AMP_ON);
194free_mic_amp_gpio:
195 gpio_free(GPIO_E740_MIC_ON);
196
197 return ret;
198}
199
200static void __exit e740_exit(void)
201{
202 platform_device_unregister(e740_snd_device);
203}
204
205module_init(e740_init);
206module_exit(e740_exit);
207
208
209MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
210MODULE_DESCRIPTION("ALSA SoC driver for e740");
211MODULE_LICENSE("GPL v2");
212
