diff options
author | Grazvydas Ignotas <notasas@gmail.com> | 2008-12-04 15:39:54 -0500 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2008-12-05 11:27:48 -0500 |
commit | 68fb740774a429ecbccd4d8b3287cf4883ad3ec2 (patch) | |
tree | 6726dcb41031447100619ca26191a704e00e7b10 /sound/soc | |
parent | 32c8dabc97d436582298ebd0e33af041c69f5a4b (diff) |
ASoC: Add support for OMAP3 Pandora
This patch adds basic support for OMAP3 Pandora.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
-rw-r--r-- | sound/soc/omap/Kconfig | 8 | ||||
-rw-r--r-- | sound/soc/omap/Makefile | 2 | ||||
-rw-r--r-- | sound/soc/omap/omap3pandora.c | 311 |
3 files changed, 321 insertions, 0 deletions
diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig index da39f27c6613..a7b1d77b2105 100644 --- a/sound/soc/omap/Kconfig +++ b/sound/soc/omap/Kconfig | |||
@@ -46,3 +46,11 @@ config SND_OMAP_SOC_SDP3430 | |||
46 | help | 46 | help |
47 | Say Y if you want to add support for SoC audio on Texas Instruments | 47 | Say Y if you want to add support for SoC audio on Texas Instruments |
48 | SDP3430. | 48 | SDP3430. |
49 | |||
50 | config SND_OMAP_SOC_OMAP3_PANDORA | ||
51 | tristate "SoC Audio support for OMAP3 Pandora" | ||
52 | depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP3_PANDORA | ||
53 | select SND_OMAP_SOC_MCBSP | ||
54 | select SND_SOC_TWL4030 | ||
55 | help | ||
56 | Say Y if you want to add support for SoC audio on the OMAP3 Pandora. | ||
diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile index 29cf3a856c89..76fedd96e365 100644 --- a/sound/soc/omap/Makefile +++ b/sound/soc/omap/Makefile | |||
@@ -11,9 +11,11 @@ snd-soc-osk5912-objs := osk5912.o | |||
11 | snd-soc-overo-objs := overo.o | 11 | snd-soc-overo-objs := overo.o |
12 | snd-soc-omap2evm-objs := omap2evm.o | 12 | snd-soc-omap2evm-objs := omap2evm.o |
13 | snd-soc-sdp3430-objs := sdp3430.o | 13 | snd-soc-sdp3430-objs := sdp3430.o |
14 | snd-soc-omap3pandora-objs := omap3pandora.o | ||
14 | 15 | ||
15 | obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o | 16 | obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o |
16 | obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o | 17 | obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o |
17 | obj-$(CONFIG_SND_OMAP_SOC_OVERO) += snd-soc-overo.o | 18 | obj-$(CONFIG_SND_OMAP_SOC_OVERO) += snd-soc-overo.o |
18 | obj-$(CONFIG_MACH_OMAP2EVM) += snd-soc-omap2evm.o | 19 | obj-$(CONFIG_MACH_OMAP2EVM) += snd-soc-omap2evm.o |
19 | obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o | 20 | obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o |
21 | obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-omap3pandora.o | ||
diff --git a/sound/soc/omap/omap3pandora.c b/sound/soc/omap/omap3pandora.c new file mode 100644 index 000000000000..bd91594496b1 --- /dev/null +++ b/sound/soc/omap/omap3pandora.c | |||
@@ -0,0 +1,311 @@ | |||
1 | /* | ||
2 | * omap3pandora.c -- SoC audio for Pandora Handheld Console | ||
3 | * | ||
4 | * Author: GraÅžvydas Ignotas <notasas@gmail.com> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * version 2 as published by the Free Software Foundation. | ||
9 | * | ||
10 | * This program is distributed in the hope that it will be useful, but | ||
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | * General Public License for more details. | ||
14 | * | ||
15 | * You should have received a copy of the GNU General Public License | ||
16 | * along with this program; if not, write to the Free Software | ||
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | ||
18 | * 02110-1301 USA | ||
19 | * | ||
20 | */ | ||
21 | |||
22 | #include <linux/clk.h> | ||
23 | #include <linux/platform_device.h> | ||
24 | #include <linux/gpio.h> | ||
25 | #include <linux/delay.h> | ||
26 | |||
27 | #include <sound/core.h> | ||
28 | #include <sound/pcm.h> | ||
29 | #include <sound/soc.h> | ||
30 | #include <sound/soc-dapm.h> | ||
31 | |||
32 | #include <asm/mach-types.h> | ||
33 | |||
34 | #include "omap-mcbsp.h" | ||
35 | #include "omap-pcm.h" | ||
36 | #include "../codecs/twl4030.h" | ||
37 | |||
38 | #define OMAP3_PANDORA_DAC_POWER_GPIO 118 | ||
39 | #define OMAP3_PANDORA_AMP_POWER_GPIO 14 | ||
40 | |||
41 | #define PREFIX "ASoC omap3pandora: " | ||
42 | |||
43 | static int omap3pandora_cmn_hw_params(struct snd_soc_dai *codec_dai, | ||
44 | struct snd_soc_dai *cpu_dai, unsigned int fmt) | ||
45 | { | ||
46 | int ret; | ||
47 | |||
48 | /* Set codec DAI configuration */ | ||
49 | ret = snd_soc_dai_set_fmt(codec_dai, fmt); | ||
50 | if (ret < 0) { | ||
51 | pr_err(PREFIX "can't set codec DAI configuration\n"); | ||
52 | return ret; | ||
53 | } | ||
54 | |||
55 | /* Set cpu DAI configuration */ | ||
56 | ret = snd_soc_dai_set_fmt(cpu_dai, fmt); | ||
57 | if (ret < 0) { | ||
58 | pr_err(PREFIX "can't set cpu DAI configuration\n"); | ||
59 | return ret; | ||
60 | } | ||
61 | |||
62 | /* Set the codec system clock for DAC and ADC */ | ||
63 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000, | ||
64 | SND_SOC_CLOCK_IN); | ||
65 | if (ret < 0) { | ||
66 | pr_err(PREFIX "can't set codec system clock\n"); | ||
67 | return ret; | ||
68 | } | ||
69 | |||
70 | /* Set McBSP clock to external */ | ||
71 | ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_SYSCLK_CLKS_EXT, 0, | ||
72 | SND_SOC_CLOCK_IN); | ||
73 | if (ret < 0) { | ||
74 | pr_err(PREFIX "can't set cpu system clock\n"); | ||
75 | return ret; | ||
76 | } | ||
77 | |||
78 | ret = snd_soc_dai_set_clkdiv(cpu_dai, OMAP_MCBSP_CLKGDV, 8); | ||
79 | if (ret < 0) { | ||
80 | pr_err(PREFIX "can't set SRG clock divider\n"); | ||
81 | return ret; | ||
82 | } | ||
83 | |||
84 | return 0; | ||
85 | } | ||
86 | |||
87 | static int omap3pandora_out_hw_params(struct snd_pcm_substream *substream, | ||
88 | struct snd_pcm_hw_params *params) | ||
89 | { | ||
90 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | ||
91 | struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; | ||
92 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; | ||
93 | |||
94 | return omap3pandora_cmn_hw_params(codec_dai, cpu_dai, | ||
95 | SND_SOC_DAIFMT_I2S | | ||
96 | SND_SOC_DAIFMT_IB_NF | | ||
97 | SND_SOC_DAIFMT_CBS_CFS); | ||
98 | } | ||
99 | |||
100 | static int omap3pandora_in_hw_params(struct snd_pcm_substream *substream, | ||
101 | struct snd_pcm_hw_params *params) | ||
102 | { | ||
103 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | ||
104 | struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; | ||
105 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; | ||
106 | |||
107 | return omap3pandora_cmn_hw_params(codec_dai, cpu_dai, | ||
108 | SND_SOC_DAIFMT_I2S | | ||
109 | SND_SOC_DAIFMT_NB_NF | | ||
110 | SND_SOC_DAIFMT_CBS_CFS); | ||
111 | } | ||
112 | |||
113 | static int omap3pandora_hp_event(struct snd_soc_dapm_widget *w, | ||
114 | struct snd_kcontrol *k, int event) | ||
115 | { | ||
116 | if (SND_SOC_DAPM_EVENT_ON(event)) { | ||
117 | gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1); | ||
118 | gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 1); | ||
119 | } else { | ||
120 | gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 0); | ||
121 | mdelay(1); | ||
122 | gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 0); | ||
123 | } | ||
124 | |||
125 | return 0; | ||
126 | } | ||
127 | |||
128 | /* | ||
129 | * Audio paths on Pandora board: | ||
130 | * | ||
131 | * |O| ---> PCM DAC +-> AMP -> Headphone Jack | ||
132 | * |M| A +--------> Line Out | ||
133 | * |A| <~~clk~~+ | ||
134 | * |P| <--- TWL4030 <--------- Line In and MICs | ||
135 | */ | ||
136 | static const struct snd_soc_dapm_widget omap3pandora_out_dapm_widgets[] = { | ||
137 | SND_SOC_DAPM_DAC("PCM DAC", "Playback", SND_SOC_NOPM, 0, 0), | ||
138 | SND_SOC_DAPM_PGA_E("Headphone Amplifier", SND_SOC_NOPM, | ||
139 | 0, 0, NULL, 0, omap3pandora_hp_event, | ||
140 | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), | ||
141 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | ||
142 | SND_SOC_DAPM_LINE("Line Out", NULL), | ||
143 | }; | ||
144 | |||
145 | static const struct snd_soc_dapm_widget omap3pandora_in_dapm_widgets[] = { | ||
146 | SND_SOC_DAPM_MIC("Mic (Internal)", NULL), | ||
147 | SND_SOC_DAPM_MIC("Mic (external)", NULL), | ||
148 | SND_SOC_DAPM_LINE("Line In", NULL), | ||
149 | }; | ||
150 | |||
151 | static const struct snd_soc_dapm_route omap3pandora_out_map[] = { | ||
152 | {"Headphone Amplifier", NULL, "PCM DAC"}, | ||
153 | {"Line Out", NULL, "PCM DAC"}, | ||
154 | {"Headphone Jack", NULL, "Headphone Amplifier"}, | ||
155 | }; | ||
156 | |||
157 | static const struct snd_soc_dapm_route omap3pandora_in_map[] = { | ||
158 | {"INL", NULL, "Line In"}, | ||
159 | {"INR", NULL, "Line In"}, | ||
160 | {"INL", NULL, "Mic (Internal)"}, | ||
161 | {"INR", NULL, "Mic (external)"}, | ||
162 | }; | ||
163 | |||
164 | static int omap3pandora_out_init(struct snd_soc_codec *codec) | ||
165 | { | ||
166 | int ret; | ||
167 | |||
168 | ret = snd_soc_dapm_new_controls(codec, omap3pandora_out_dapm_widgets, | ||
169 | ARRAY_SIZE(omap3pandora_out_dapm_widgets)); | ||
170 | if (ret < 0) | ||
171 | return ret; | ||
172 | |||
173 | snd_soc_dapm_add_routes(codec, omap3pandora_out_map, | ||
174 | ARRAY_SIZE(omap3pandora_out_map)); | ||
175 | |||
176 | return snd_soc_dapm_sync(codec); | ||
177 | } | ||
178 | |||
179 | static int omap3pandora_in_init(struct snd_soc_codec *codec) | ||
180 | { | ||
181 | int ret; | ||
182 | |||
183 | ret = snd_soc_dapm_new_controls(codec, omap3pandora_in_dapm_widgets, | ||
184 | ARRAY_SIZE(omap3pandora_in_dapm_widgets)); | ||
185 | if (ret < 0) | ||
186 | return ret; | ||
187 | |||
188 | snd_soc_dapm_add_routes(codec, omap3pandora_in_map, | ||
189 | ARRAY_SIZE(omap3pandora_in_map)); | ||
190 | |||
191 | return snd_soc_dapm_sync(codec); | ||
192 | } | ||
193 | |||
194 | static struct snd_soc_ops omap3pandora_out_ops = { | ||
195 | .hw_params = omap3pandora_out_hw_params, | ||
196 | }; | ||
197 | |||
198 | static struct snd_soc_ops omap3pandora_in_ops = { | ||
199 | .hw_params = omap3pandora_in_hw_params, | ||
200 | }; | ||
201 | |||
202 | /* Digital audio interface glue - connects codec <--> CPU */ | ||
203 | static struct snd_soc_dai_link omap3pandora_dai[] = { | ||
204 | { | ||
205 | .name = "PCM1773", | ||
206 | .stream_name = "HiFi Out", | ||
207 | .cpu_dai = &omap_mcbsp_dai[0], | ||
208 | .codec_dai = &twl4030_dai, | ||
209 | .ops = &omap3pandora_out_ops, | ||
210 | .init = omap3pandora_out_init, | ||
211 | }, { | ||
212 | .name = "TWL4030", | ||
213 | .stream_name = "Line/Mic In", | ||
214 | .cpu_dai = &omap_mcbsp_dai[1], | ||
215 | .codec_dai = &twl4030_dai, | ||
216 | .ops = &omap3pandora_in_ops, | ||
217 | .init = omap3pandora_in_init, | ||
218 | } | ||
219 | }; | ||
220 | |||
221 | /* SoC card */ | ||
222 | static struct snd_soc_card snd_soc_card_omap3pandora = { | ||
223 | .name = "omap3pandora", | ||
224 | .platform = &omap_soc_platform, | ||
225 | .dai_link = omap3pandora_dai, | ||
226 | .num_links = ARRAY_SIZE(omap3pandora_dai), | ||
227 | }; | ||
228 | |||
229 | /* Audio subsystem */ | ||
230 | static struct snd_soc_device omap3pandora_snd_data = { | ||
231 | .card = &snd_soc_card_omap3pandora, | ||
232 | .codec_dev = &soc_codec_dev_twl4030, | ||
233 | }; | ||
234 | |||
235 | static struct platform_device *omap3pandora_snd_device; | ||
236 | |||
237 | static int __init omap3pandora_soc_init(void) | ||
238 | { | ||
239 | int ret; | ||
240 | |||
241 | if (!machine_is_omap3_pandora()) { | ||
242 | pr_debug(PREFIX "Not OMAP3 Pandora\n"); | ||
243 | return -ENODEV; | ||
244 | } | ||
245 | pr_info("OMAP3 Pandora SoC init\n"); | ||
246 | |||
247 | ret = gpio_request(OMAP3_PANDORA_DAC_POWER_GPIO, "dac_power"); | ||
248 | if (ret) { | ||
249 | pr_err(PREFIX "Failed to get DAC power GPIO\n"); | ||
250 | return ret; | ||
251 | } | ||
252 | |||
253 | ret = gpio_direction_output(OMAP3_PANDORA_DAC_POWER_GPIO, 0); | ||
254 | if (ret) { | ||
255 | pr_err(PREFIX "Failed to set DAC power GPIO direction\n"); | ||
256 | goto fail0; | ||
257 | } | ||
258 | |||
259 | ret = gpio_request(OMAP3_PANDORA_AMP_POWER_GPIO, "amp_power"); | ||
260 | if (ret) { | ||
261 | pr_err(PREFIX "Failed to get amp power GPIO\n"); | ||
262 | goto fail0; | ||
263 | } | ||
264 | |||
265 | ret = gpio_direction_output(OMAP3_PANDORA_AMP_POWER_GPIO, 0); | ||
266 | if (ret) { | ||
267 | pr_err(PREFIX "Failed to set amp power GPIO direction\n"); | ||
268 | goto fail1; | ||
269 | } | ||
270 | |||
271 | omap3pandora_snd_device = platform_device_alloc("soc-audio", -1); | ||
272 | if (omap3pandora_snd_device == NULL) { | ||
273 | pr_err(PREFIX "Platform device allocation failed\n"); | ||
274 | ret = -ENOMEM; | ||
275 | goto fail1; | ||
276 | } | ||
277 | |||
278 | platform_set_drvdata(omap3pandora_snd_device, &omap3pandora_snd_data); | ||
279 | omap3pandora_snd_data.dev = &omap3pandora_snd_device->dev; | ||
280 | *(unsigned int *)omap_mcbsp_dai[0].private_data = 1; /* McBSP2 */ | ||
281 | *(unsigned int *)omap_mcbsp_dai[1].private_data = 3; /* McBSP4 */ | ||
282 | |||
283 | ret = platform_device_add(omap3pandora_snd_device); | ||
284 | if (ret) { | ||
285 | pr_err(PREFIX "Unable to add platform device\n"); | ||
286 | goto fail2; | ||
287 | } | ||
288 | |||
289 | return 0; | ||
290 | |||
291 | fail2: | ||
292 | platform_device_put(omap3pandora_snd_device); | ||
293 | fail1: | ||
294 | gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO); | ||
295 | fail0: | ||
296 | gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO); | ||
297 | return ret; | ||
298 | } | ||
299 | module_init(omap3pandora_soc_init); | ||
300 | |||
301 | static void __exit omap3pandora_soc_exit(void) | ||
302 | { | ||
303 | platform_device_unregister(omap3pandora_snd_device); | ||
304 | gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO); | ||
305 | gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO); | ||
306 | } | ||
307 | module_exit(omap3pandora_soc_exit); | ||
308 | |||
309 | MODULE_AUTHOR("Grazvydas Ignotas <notasas@gmail.com>"); | ||
310 | MODULE_DESCRIPTION("ALSA SoC OMAP3 Pandora"); | ||
311 | MODULE_LICENSE("GPL"); | ||