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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 | /* * poodle.c -- SoC audio for Poodle * * Copyright 2005 Wolfson Microelectronics PLC. * Copyright 2005 Openedhand Ltd. * * Authors: Liam Girdwood <lrg@slimlogic.co.uk> * Richard Purdie <richard@openedhand.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/timer.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/platform_device.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <asm/mach-types.h> #include <asm/hardware/locomo.h> #include <mach/poodle.h> #include <mach/audio.h> #include "../codecs/wm8731.h" #include "pxa2xx-pcm.h" #include "pxa2xx-i2s.h" #define POODLE_HP 1 #define POODLE_HP_OFF 0 #define POODLE_SPK_ON 1 #define POODLE_SPK_OFF 0 /* audio clock in Hz - rounded from 12.235MHz */ #define POODLE_AUDIO_CLOCK 12288000 static int poodle_jack_func; static int poodle_spk_func; static void poodle_ext_control(struct snd_soc_codec *codec) { /* set up jack connection */ if (poodle_jack_func == POODLE_HP) { /* set = unmute headphone */ locomo_gpio_write(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_MUTE_L, 1); locomo_gpio_write(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_MUTE_R, 1); snd_soc_dapm_enable_pin(codec, "Headphone Jack"); } else { locomo_gpio_write(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_MUTE_L, 0); locomo_gpio_write(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_MUTE_R, 0); snd_soc_dapm_disable_pin(codec, "Headphone Jack"); } /* set the enpoints to their new connetion states */ if (poodle_spk_func == POODLE_SPK_ON) snd_soc_dapm_enable_pin(codec, "Ext Spk"); else snd_soc_dapm_disable_pin(codec, "Ext Spk"); /* signal a DAPM event */ snd_soc_dapm_sync(codec); } static int poodle_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_codec *codec = rtd->socdev->card->codec; /* check the jack status at stream startup */ poodle_ext_control(codec); return 0; } /* we need to unmute the HP at shutdown as the mute burns power on poodle */ static void poodle_shutdown(struct snd_pcm_substream *substream) { /* set = unmute headphone */ locomo_gpio_write(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_MUTE_L, 1); locomo_gpio_write(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_MUTE_R, 1); } static int poodle_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; unsigned int clk = 0; int ret = 0; switch (params_rate(params)) { case 8000: case 16000: case 48000: case 96000: clk = 12288000; break; case 11025: case 22050: case 44100: clk = 11289600; break; } /* set codec DAI configuration */ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); if (ret < 0) return ret; /* set cpu DAI configuration */ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); if (ret < 0) return ret; /* set the codec system clock for DAC and ADC */ ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK, clk, SND_SOC_CLOCK_IN); if (ret < 0) return ret; /* set the I2S system clock as input (unused) */ ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, SND_SOC_CLOCK_IN); if (ret < 0) return ret; return 0; } static struct snd_soc_ops poodle_ops = { .startup = poodle_startup, .hw_params = poodle_hw_params, .shutdown = poodle_shutdown, }; static int poodle_get_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = poodle_jack_func; return 0; } static int poodle_set_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); if (poodle_jack_func == ucontrol->value.integer.value[0]) return 0; poodle_jack_func = ucontrol->value.integer.value[0]; poodle_ext_control(codec); return 1; } static int poodle_get_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = poodle_spk_func; return 0; } static int poodle_set_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); if (poodle_spk_func == ucontrol->value.integer.value[0]) return 0; poodle_spk_func = ucontrol->value.integer.value[0]; poodle_ext_control(codec); return 1; } static int poodle_amp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { if (SND_SOC_DAPM_EVENT_ON(event)) locomo_gpio_write(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_AMP_ON, 0); else locomo_gpio_write(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_AMP_ON, 1); return 0; } /* poodle machine dapm widgets */ static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event), }; /* Corgi machine connections to the codec pins */ static const struct snd_soc_dapm_route audio_map[] = { /* headphone connected to LHPOUT1, RHPOUT1 */ {"Headphone Jack", NULL, "LHPOUT"}, {"Headphone Jack", NULL, "RHPOUT"}, /* speaker connected to LOUT, ROUT */ {"Ext Spk", NULL, "ROUT"}, {"Ext Spk", NULL, "LOUT"}, }; static const char *jack_function[] = {"Off", "Headphone"}; static const char *spk_function[] = {"Off", "On"}; static const struct soc_enum poodle_enum[] = { SOC_ENUM_SINGLE_EXT(2, jack_function), SOC_ENUM_SINGLE_EXT(2, spk_function), }; static const struct snd_kcontrol_new wm8731_poodle_controls[] = { SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack, poodle_set_jack), SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk, poodle_set_spk), }; /* * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device */ static int poodle_wm8731_init(struct snd_soc_codec *codec) { int err; snd_soc_dapm_nc_pin(codec, "LLINEIN"); snd_soc_dapm_nc_pin(codec, "RLINEIN"); snd_soc_dapm_enable_pin(codec, "MICIN"); /* Add poodle specific controls */ err = snd_soc_add_controls(codec, wm8731_poodle_controls, ARRAY_SIZE(wm8731_poodle_controls)); if (err < 0) return err; /* Add poodle specific widgets */ snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets, ARRAY_SIZE(wm8731_dapm_widgets)); /* Set up poodle specific audio path audio_map */ snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); snd_soc_dapm_sync(codec); return 0; } /* poodle digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link poodle_dai = { .name = "WM8731", .stream_name = "WM8731", .cpu_dai = &pxa_i2s_dai, .codec_dai = &wm8731_dai, .init = poodle_wm8731_init, .ops = &poodle_ops, }; /* poodle audio machine driver */ static struct snd_soc_card snd_soc_poodle = { .name = "Poodle", .platform = &pxa2xx_soc_platform, .dai_link = &poodle_dai, .num_links = 1, }; /* poodle audio subsystem */ static struct snd_soc_device poodle_snd_devdata = { .card = &snd_soc_poodle, .codec_dev = &soc_codec_dev_wm8731, }; static struct platform_device *poodle_snd_device; static int __init poodle_init(void) { int ret; if (!machine_is_poodle()) return -ENODEV; locomo_gpio_set_dir(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_AMP_ON, 0); /* should we mute HP at startup - burning power ?*/ locomo_gpio_set_dir(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_MUTE_L, 0); locomo_gpio_set_dir(&poodle_locomo_device.dev, POODLE_LOCOMO_GPIO_MUTE_R, 0); poodle_snd_device = platform_device_alloc("soc-audio", -1); if (!poodle_snd_device) return -ENOMEM; platform_set_drvdata(poodle_snd_device, &poodle_snd_devdata); poodle_snd_devdata.dev = &poodle_snd_device->dev; ret = platform_device_add(poodle_snd_device); if (ret) platform_device_put(poodle_snd_device); return ret; } static void __exit poodle_exit(void) { platform_device_unregister(poodle_snd_device); } module_init(poodle_init); module_exit(poodle_exit); /* Module information */ MODULE_AUTHOR("Richard Purdie"); MODULE_DESCRIPTION("ALSA SoC Poodle"); MODULE_LICENSE("GPL"); |