Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 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> |
Grazvydas Ignotas | c50749d | 2010-02-05 16:29:53 +0200 | [diff] [blame] | 26 | #include <linux/regulator/consumer.h> |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 27 | |
| 28 | #include <sound/core.h> |
| 29 | #include <sound/pcm.h> |
| 30 | #include <sound/soc.h> |
| 31 | #include <sound/soc-dapm.h> |
| 32 | |
| 33 | #include <asm/mach-types.h> |
| 34 | |
| 35 | #include "omap-mcbsp.h" |
| 36 | #include "omap-pcm.h" |
| 37 | #include "../codecs/twl4030.h" |
| 38 | |
| 39 | #define OMAP3_PANDORA_DAC_POWER_GPIO 118 |
| 40 | #define OMAP3_PANDORA_AMP_POWER_GPIO 14 |
| 41 | |
| 42 | #define PREFIX "ASoC omap3pandora: " |
| 43 | |
Grazvydas Ignotas | c50749d | 2010-02-05 16:29:53 +0200 | [diff] [blame] | 44 | static struct regulator *omap3pandora_dac_reg; |
| 45 | |
Jarkko Nikula | 9e5d86f | 2009-11-09 08:44:32 +0200 | [diff] [blame] | 46 | static int omap3pandora_cmn_hw_params(struct snd_pcm_substream *substream, |
| 47 | struct snd_pcm_hw_params *params, unsigned int fmt) |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 48 | { |
Jarkko Nikula | 9e5d86f | 2009-11-09 08:44:32 +0200 | [diff] [blame] | 49 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 50 | struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; |
| 51 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 52 | int ret; |
| 53 | |
| 54 | /* Set codec DAI configuration */ |
| 55 | ret = snd_soc_dai_set_fmt(codec_dai, fmt); |
| 56 | if (ret < 0) { |
| 57 | pr_err(PREFIX "can't set codec DAI configuration\n"); |
| 58 | return ret; |
| 59 | } |
| 60 | |
| 61 | /* Set cpu DAI configuration */ |
| 62 | ret = snd_soc_dai_set_fmt(cpu_dai, fmt); |
| 63 | if (ret < 0) { |
| 64 | pr_err(PREFIX "can't set cpu DAI configuration\n"); |
| 65 | return ret; |
| 66 | } |
| 67 | |
| 68 | /* Set the codec system clock for DAC and ADC */ |
| 69 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000, |
| 70 | SND_SOC_CLOCK_IN); |
| 71 | if (ret < 0) { |
| 72 | pr_err(PREFIX "can't set codec system clock\n"); |
| 73 | return ret; |
| 74 | } |
| 75 | |
| 76 | /* Set McBSP clock to external */ |
Jarkko Nikula | 9e5d86f | 2009-11-09 08:44:32 +0200 | [diff] [blame] | 77 | ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_SYSCLK_CLKS_EXT, |
| 78 | 256 * params_rate(params), |
| 79 | SND_SOC_CLOCK_IN); |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 80 | if (ret < 0) { |
| 81 | pr_err(PREFIX "can't set cpu system clock\n"); |
| 82 | return ret; |
| 83 | } |
| 84 | |
| 85 | ret = snd_soc_dai_set_clkdiv(cpu_dai, OMAP_MCBSP_CLKGDV, 8); |
| 86 | if (ret < 0) { |
| 87 | pr_err(PREFIX "can't set SRG clock divider\n"); |
| 88 | return ret; |
| 89 | } |
| 90 | |
| 91 | return 0; |
| 92 | } |
| 93 | |
| 94 | static int omap3pandora_out_hw_params(struct snd_pcm_substream *substream, |
| 95 | struct snd_pcm_hw_params *params) |
| 96 | { |
Jarkko Nikula | 9e5d86f | 2009-11-09 08:44:32 +0200 | [diff] [blame] | 97 | return omap3pandora_cmn_hw_params(substream, params, |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 98 | SND_SOC_DAIFMT_I2S | |
| 99 | SND_SOC_DAIFMT_IB_NF | |
| 100 | SND_SOC_DAIFMT_CBS_CFS); |
| 101 | } |
| 102 | |
| 103 | static int omap3pandora_in_hw_params(struct snd_pcm_substream *substream, |
| 104 | struct snd_pcm_hw_params *params) |
| 105 | { |
Jarkko Nikula | 9e5d86f | 2009-11-09 08:44:32 +0200 | [diff] [blame] | 106 | return omap3pandora_cmn_hw_params(substream, params, |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 107 | SND_SOC_DAIFMT_I2S | |
| 108 | SND_SOC_DAIFMT_NB_NF | |
| 109 | SND_SOC_DAIFMT_CBS_CFS); |
| 110 | } |
| 111 | |
Grazvydas Ignotas | c50749d | 2010-02-05 16:29:53 +0200 | [diff] [blame] | 112 | static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w, |
| 113 | struct snd_kcontrol *k, int event) |
| 114 | { |
| 115 | /* |
| 116 | * The PCM1773 DAC datasheet requires 1ms delay between switching |
| 117 | * VCC power on/off and /PD pin high/low |
| 118 | */ |
| 119 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
| 120 | regulator_enable(omap3pandora_dac_reg); |
| 121 | mdelay(1); |
| 122 | gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1); |
| 123 | } else { |
| 124 | gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 0); |
| 125 | mdelay(1); |
| 126 | regulator_disable(omap3pandora_dac_reg); |
| 127 | } |
| 128 | |
| 129 | return 0; |
| 130 | } |
| 131 | |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 132 | static int omap3pandora_hp_event(struct snd_soc_dapm_widget *w, |
| 133 | struct snd_kcontrol *k, int event) |
| 134 | { |
Grazvydas Ignotas | c50749d | 2010-02-05 16:29:53 +0200 | [diff] [blame] | 135 | if (SND_SOC_DAPM_EVENT_ON(event)) |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 136 | gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 1); |
Grazvydas Ignotas | c50749d | 2010-02-05 16:29:53 +0200 | [diff] [blame] | 137 | else |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 138 | gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 0); |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 139 | |
| 140 | return 0; |
| 141 | } |
| 142 | |
| 143 | /* |
| 144 | * Audio paths on Pandora board: |
| 145 | * |
| 146 | * |O| ---> PCM DAC +-> AMP -> Headphone Jack |
| 147 | * |M| A +--------> Line Out |
| 148 | * |A| <~~clk~~+ |
| 149 | * |P| <--- TWL4030 <--------- Line In and MICs |
| 150 | */ |
| 151 | static const struct snd_soc_dapm_widget omap3pandora_out_dapm_widgets[] = { |
Grazvydas Ignotas | c50749d | 2010-02-05 16:29:53 +0200 | [diff] [blame] | 152 | SND_SOC_DAPM_DAC_E("PCM DAC", "HiFi Playback", SND_SOC_NOPM, |
| 153 | 0, 0, omap3pandora_dac_event, |
| 154 | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 155 | SND_SOC_DAPM_PGA_E("Headphone Amplifier", SND_SOC_NOPM, |
| 156 | 0, 0, NULL, 0, omap3pandora_hp_event, |
| 157 | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), |
| 158 | SND_SOC_DAPM_HP("Headphone Jack", NULL), |
| 159 | SND_SOC_DAPM_LINE("Line Out", NULL), |
| 160 | }; |
| 161 | |
| 162 | static const struct snd_soc_dapm_widget omap3pandora_in_dapm_widgets[] = { |
Grazvydas Ignotas | 8f00806 | 2009-01-31 16:29:24 +0200 | [diff] [blame] | 163 | SND_SOC_DAPM_MIC("Mic (internal)", NULL), |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 164 | SND_SOC_DAPM_MIC("Mic (external)", NULL), |
| 165 | SND_SOC_DAPM_LINE("Line In", NULL), |
| 166 | }; |
| 167 | |
| 168 | static const struct snd_soc_dapm_route omap3pandora_out_map[] = { |
Grazvydas Ignotas | 3b9447f | 2010-02-05 00:55:33 +0200 | [diff] [blame] | 169 | {"PCM DAC", NULL, "APLL Enable"}, |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 170 | {"Headphone Amplifier", NULL, "PCM DAC"}, |
| 171 | {"Line Out", NULL, "PCM DAC"}, |
| 172 | {"Headphone Jack", NULL, "Headphone Amplifier"}, |
| 173 | }; |
| 174 | |
| 175 | static const struct snd_soc_dapm_route omap3pandora_in_map[] = { |
Grazvydas Ignotas | 8f00806 | 2009-01-31 16:29:24 +0200 | [diff] [blame] | 176 | {"AUXL", NULL, "Line In"}, |
| 177 | {"AUXR", NULL, "Line In"}, |
| 178 | |
| 179 | {"MAINMIC", NULL, "Mic Bias 1"}, |
| 180 | {"Mic Bias 1", NULL, "Mic (internal)"}, |
| 181 | |
| 182 | {"SUBMIC", NULL, "Mic Bias 2"}, |
| 183 | {"Mic Bias 2", NULL, "Mic (external)"}, |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 184 | }; |
| 185 | |
| 186 | static int omap3pandora_out_init(struct snd_soc_codec *codec) |
| 187 | { |
| 188 | int ret; |
| 189 | |
Grazvydas Ignotas | 8f00806 | 2009-01-31 16:29:24 +0200 | [diff] [blame] | 190 | /* All TWL4030 output pins are floating */ |
Grazvydas Ignotas | 8f00806 | 2009-01-31 16:29:24 +0200 | [diff] [blame] | 191 | snd_soc_dapm_nc_pin(codec, "EARPIECE"); |
| 192 | snd_soc_dapm_nc_pin(codec, "PREDRIVEL"); |
| 193 | snd_soc_dapm_nc_pin(codec, "PREDRIVER"); |
| 194 | snd_soc_dapm_nc_pin(codec, "HSOL"); |
| 195 | snd_soc_dapm_nc_pin(codec, "HSOR"); |
| 196 | snd_soc_dapm_nc_pin(codec, "CARKITL"); |
| 197 | snd_soc_dapm_nc_pin(codec, "CARKITR"); |
| 198 | snd_soc_dapm_nc_pin(codec, "HFL"); |
| 199 | snd_soc_dapm_nc_pin(codec, "HFR"); |
Grazvydas Ignotas | f3dd704 | 2009-11-07 23:16:12 +0200 | [diff] [blame] | 200 | snd_soc_dapm_nc_pin(codec, "VIBRA"); |
Grazvydas Ignotas | 8f00806 | 2009-01-31 16:29:24 +0200 | [diff] [blame] | 201 | |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 202 | ret = snd_soc_dapm_new_controls(codec, omap3pandora_out_dapm_widgets, |
| 203 | ARRAY_SIZE(omap3pandora_out_dapm_widgets)); |
| 204 | if (ret < 0) |
| 205 | return ret; |
| 206 | |
| 207 | snd_soc_dapm_add_routes(codec, omap3pandora_out_map, |
| 208 | ARRAY_SIZE(omap3pandora_out_map)); |
| 209 | |
| 210 | return snd_soc_dapm_sync(codec); |
| 211 | } |
| 212 | |
| 213 | static int omap3pandora_in_init(struct snd_soc_codec *codec) |
| 214 | { |
| 215 | int ret; |
| 216 | |
Grazvydas Ignotas | 8f00806 | 2009-01-31 16:29:24 +0200 | [diff] [blame] | 217 | /* Not comnnected */ |
| 218 | snd_soc_dapm_nc_pin(codec, "HSMIC"); |
| 219 | snd_soc_dapm_nc_pin(codec, "CARKITMIC"); |
| 220 | snd_soc_dapm_nc_pin(codec, "DIGIMIC0"); |
| 221 | snd_soc_dapm_nc_pin(codec, "DIGIMIC1"); |
Grazvydas Ignotas | 7f18534 | 2008-12-23 12:04:48 +0200 | [diff] [blame] | 222 | |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 223 | ret = snd_soc_dapm_new_controls(codec, omap3pandora_in_dapm_widgets, |
| 224 | ARRAY_SIZE(omap3pandora_in_dapm_widgets)); |
| 225 | if (ret < 0) |
| 226 | return ret; |
| 227 | |
| 228 | snd_soc_dapm_add_routes(codec, omap3pandora_in_map, |
| 229 | ARRAY_SIZE(omap3pandora_in_map)); |
| 230 | |
| 231 | return snd_soc_dapm_sync(codec); |
| 232 | } |
| 233 | |
| 234 | static struct snd_soc_ops omap3pandora_out_ops = { |
| 235 | .hw_params = omap3pandora_out_hw_params, |
| 236 | }; |
| 237 | |
| 238 | static struct snd_soc_ops omap3pandora_in_ops = { |
| 239 | .hw_params = omap3pandora_in_hw_params, |
| 240 | }; |
| 241 | |
| 242 | /* Digital audio interface glue - connects codec <--> CPU */ |
| 243 | static struct snd_soc_dai_link omap3pandora_dai[] = { |
| 244 | { |
| 245 | .name = "PCM1773", |
| 246 | .stream_name = "HiFi Out", |
| 247 | .cpu_dai = &omap_mcbsp_dai[0], |
Joonyoung Shim | 7154b3e | 2009-04-20 19:21:35 +0900 | [diff] [blame] | 248 | .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI], |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 249 | .ops = &omap3pandora_out_ops, |
| 250 | .init = omap3pandora_out_init, |
| 251 | }, { |
| 252 | .name = "TWL4030", |
| 253 | .stream_name = "Line/Mic In", |
| 254 | .cpu_dai = &omap_mcbsp_dai[1], |
Joonyoung Shim | 7154b3e | 2009-04-20 19:21:35 +0900 | [diff] [blame] | 255 | .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI], |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 256 | .ops = &omap3pandora_in_ops, |
| 257 | .init = omap3pandora_in_init, |
| 258 | } |
| 259 | }; |
| 260 | |
| 261 | /* SoC card */ |
| 262 | static struct snd_soc_card snd_soc_card_omap3pandora = { |
| 263 | .name = "omap3pandora", |
| 264 | .platform = &omap_soc_platform, |
| 265 | .dai_link = omap3pandora_dai, |
| 266 | .num_links = ARRAY_SIZE(omap3pandora_dai), |
| 267 | }; |
| 268 | |
| 269 | /* Audio subsystem */ |
| 270 | static struct snd_soc_device omap3pandora_snd_data = { |
| 271 | .card = &snd_soc_card_omap3pandora, |
| 272 | .codec_dev = &soc_codec_dev_twl4030, |
| 273 | }; |
| 274 | |
| 275 | static struct platform_device *omap3pandora_snd_device; |
| 276 | |
| 277 | static int __init omap3pandora_soc_init(void) |
| 278 | { |
| 279 | int ret; |
| 280 | |
Grazvydas Ignotas | 8f00806 | 2009-01-31 16:29:24 +0200 | [diff] [blame] | 281 | if (!machine_is_omap3_pandora()) |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 282 | return -ENODEV; |
Grazvydas Ignotas | 8f00806 | 2009-01-31 16:29:24 +0200 | [diff] [blame] | 283 | |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 284 | pr_info("OMAP3 Pandora SoC init\n"); |
| 285 | |
| 286 | ret = gpio_request(OMAP3_PANDORA_DAC_POWER_GPIO, "dac_power"); |
| 287 | if (ret) { |
| 288 | pr_err(PREFIX "Failed to get DAC power GPIO\n"); |
| 289 | return ret; |
| 290 | } |
| 291 | |
| 292 | ret = gpio_direction_output(OMAP3_PANDORA_DAC_POWER_GPIO, 0); |
| 293 | if (ret) { |
| 294 | pr_err(PREFIX "Failed to set DAC power GPIO direction\n"); |
| 295 | goto fail0; |
| 296 | } |
| 297 | |
| 298 | ret = gpio_request(OMAP3_PANDORA_AMP_POWER_GPIO, "amp_power"); |
| 299 | if (ret) { |
| 300 | pr_err(PREFIX "Failed to get amp power GPIO\n"); |
| 301 | goto fail0; |
| 302 | } |
| 303 | |
| 304 | ret = gpio_direction_output(OMAP3_PANDORA_AMP_POWER_GPIO, 0); |
| 305 | if (ret) { |
| 306 | pr_err(PREFIX "Failed to set amp power GPIO direction\n"); |
| 307 | goto fail1; |
| 308 | } |
| 309 | |
| 310 | omap3pandora_snd_device = platform_device_alloc("soc-audio", -1); |
| 311 | if (omap3pandora_snd_device == NULL) { |
| 312 | pr_err(PREFIX "Platform device allocation failed\n"); |
| 313 | ret = -ENOMEM; |
| 314 | goto fail1; |
| 315 | } |
| 316 | |
| 317 | platform_set_drvdata(omap3pandora_snd_device, &omap3pandora_snd_data); |
| 318 | omap3pandora_snd_data.dev = &omap3pandora_snd_device->dev; |
| 319 | *(unsigned int *)omap_mcbsp_dai[0].private_data = 1; /* McBSP2 */ |
| 320 | *(unsigned int *)omap_mcbsp_dai[1].private_data = 3; /* McBSP4 */ |
| 321 | |
| 322 | ret = platform_device_add(omap3pandora_snd_device); |
| 323 | if (ret) { |
| 324 | pr_err(PREFIX "Unable to add platform device\n"); |
| 325 | goto fail2; |
| 326 | } |
| 327 | |
Grazvydas Ignotas | c50749d | 2010-02-05 16:29:53 +0200 | [diff] [blame] | 328 | omap3pandora_dac_reg = regulator_get(&omap3pandora_snd_device->dev, "vcc"); |
| 329 | if (IS_ERR(omap3pandora_dac_reg)) { |
| 330 | pr_err(PREFIX "Failed to get DAC regulator from %s: %ld\n", |
| 331 | dev_name(&omap3pandora_snd_device->dev), |
| 332 | PTR_ERR(omap3pandora_dac_reg)); |
| 333 | goto fail3; |
| 334 | } |
| 335 | |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 336 | return 0; |
| 337 | |
Grazvydas Ignotas | c50749d | 2010-02-05 16:29:53 +0200 | [diff] [blame] | 338 | fail3: |
| 339 | platform_device_del(omap3pandora_snd_device); |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 340 | fail2: |
| 341 | platform_device_put(omap3pandora_snd_device); |
| 342 | fail1: |
| 343 | gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO); |
| 344 | fail0: |
| 345 | gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO); |
| 346 | return ret; |
| 347 | } |
| 348 | module_init(omap3pandora_soc_init); |
| 349 | |
| 350 | static void __exit omap3pandora_soc_exit(void) |
| 351 | { |
Grazvydas Ignotas | c50749d | 2010-02-05 16:29:53 +0200 | [diff] [blame] | 352 | regulator_put(omap3pandora_dac_reg); |
Grazvydas Ignotas | 68fb740 | 2008-12-04 22:39:54 +0200 | [diff] [blame] | 353 | platform_device_unregister(omap3pandora_snd_device); |
| 354 | gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO); |
| 355 | gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO); |
| 356 | } |
| 357 | module_exit(omap3pandora_soc_exit); |
| 358 | |
| 359 | MODULE_AUTHOR("Grazvydas Ignotas <notasas@gmail.com>"); |
| 360 | MODULE_DESCRIPTION("ALSA SoC OMAP3 Pandora"); |
| 361 | MODULE_LICENSE("GPL"); |