diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/wl1273.c')
-rw-r--r-- | ANDROID_3.4.5/sound/soc/codecs/wl1273.c | 517 |
1 files changed, 0 insertions, 517 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wl1273.c b/ANDROID_3.4.5/sound/soc/codecs/wl1273.c deleted file mode 100644 index 3d868dc4..00000000 --- a/ANDROID_3.4.5/sound/soc/codecs/wl1273.c +++ /dev/null @@ -1,517 +0,0 @@ -/* - * ALSA SoC WL1273 codec driver - * - * Author: Matti Aaltonen, <matti.j.aaltonen@nokia.com> - * - * Copyright: (C) 2010, 2011 Nokia Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <linux/mfd/wl1273-core.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> -#include <sound/initval.h> - -#include "wl1273.h" - -enum wl1273_mode { WL1273_MODE_BT, WL1273_MODE_FM_RX, WL1273_MODE_FM_TX }; - -/* codec private data */ -struct wl1273_priv { - enum wl1273_mode mode; - struct wl1273_core *core; - unsigned int channels; -}; - -static int snd_wl1273_fm_set_i2s_mode(struct wl1273_core *core, - int rate, int width) -{ - struct device *dev = &core->client->dev; - int r = 0; - u16 mode; - - dev_dbg(dev, "rate: %d\n", rate); - dev_dbg(dev, "width: %d\n", width); - - mutex_lock(&core->lock); - - mode = core->i2s_mode & ~WL1273_IS2_WIDTH & ~WL1273_IS2_RATE; - - switch (rate) { - case 48000: - mode |= WL1273_IS2_RATE_48K; - break; - case 44100: - mode |= WL1273_IS2_RATE_44_1K; - break; - case 32000: - mode |= WL1273_IS2_RATE_32K; - break; - case 22050: - mode |= WL1273_IS2_RATE_22_05K; - break; - case 16000: - mode |= WL1273_IS2_RATE_16K; - break; - case 12000: - mode |= WL1273_IS2_RATE_12K; - break; - case 11025: - mode |= WL1273_IS2_RATE_11_025; - break; - case 8000: - mode |= WL1273_IS2_RATE_8K; - break; - default: - dev_err(dev, "Sampling rate: %d not supported\n", rate); - r = -EINVAL; - goto out; - } - - switch (width) { - case 16: - mode |= WL1273_IS2_WIDTH_32; - break; - case 20: - mode |= WL1273_IS2_WIDTH_40; - break; - case 24: - mode |= WL1273_IS2_WIDTH_48; - break; - case 25: - mode |= WL1273_IS2_WIDTH_50; - break; - case 30: - mode |= WL1273_IS2_WIDTH_60; - break; - case 32: - mode |= WL1273_IS2_WIDTH_64; - break; - case 40: - mode |= WL1273_IS2_WIDTH_80; - break; - case 48: - mode |= WL1273_IS2_WIDTH_96; - break; - case 64: - mode |= WL1273_IS2_WIDTH_128; - break; - default: - dev_err(dev, "Data width: %d not supported\n", width); - r = -EINVAL; - goto out; - } - - dev_dbg(dev, "WL1273_I2S_DEF_MODE: 0x%04x\n", WL1273_I2S_DEF_MODE); - dev_dbg(dev, "core->i2s_mode: 0x%04x\n", core->i2s_mode); - dev_dbg(dev, "mode: 0x%04x\n", mode); - - if (core->i2s_mode != mode) { - r = core->write(core, WL1273_I2S_MODE_CONFIG_SET, mode); - if (r) - goto out; - - core->i2s_mode = mode; - r = core->write(core, WL1273_AUDIO_ENABLE, - WL1273_AUDIO_ENABLE_I2S); - if (r) - goto out; - } -out: - mutex_unlock(&core->lock); - - return r; -} - -static int snd_wl1273_fm_set_channel_number(struct wl1273_core *core, - int channel_number) -{ - struct device *dev = &core->client->dev; - int r = 0; - - dev_dbg(dev, "%s\n", __func__); - - mutex_lock(&core->lock); - - if (core->channel_number == channel_number) - goto out; - - if (channel_number == 1 && core->mode == WL1273_MODE_RX) - r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_MONO); - else if (channel_number == 1 && core->mode == WL1273_MODE_TX) - r = core->write(core, WL1273_MONO_SET, WL1273_TX_MONO); - else if (channel_number == 2 && core->mode == WL1273_MODE_RX) - r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_STEREO); - else if (channel_number == 2 && core->mode == WL1273_MODE_TX) - r = core->write(core, WL1273_MONO_SET, WL1273_TX_STEREO); - else - r = -EINVAL; -out: - mutex_unlock(&core->lock); - - return r; -} - -static int snd_wl1273_get_audio_route(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(codec); - - ucontrol->value.integer.value[0] = wl1273->mode; - - return 0; -} - -/* - * TODO: Implement the audio routing in the driver. Now this control - * only indicates the setting that has been done elsewhere (in the user - * space). - */ -static const char * const wl1273_audio_route[] = { "Bt", "FmRx", "FmTx" }; - -static int snd_wl1273_set_audio_route(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(codec); - - if (wl1273->mode == ucontrol->value.integer.value[0]) - return 0; - - /* Do not allow changes while stream is running */ - if (codec->active) - return -EPERM; - - if (ucontrol->value.integer.value[0] < 0 || - ucontrol->value.integer.value[0] >= ARRAY_SIZE(wl1273_audio_route)) - return -EINVAL; - - wl1273->mode = ucontrol->value.integer.value[0]; - - return 1; -} - -static const struct soc_enum wl1273_enum = - SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(wl1273_audio_route), wl1273_audio_route); - -static int snd_wl1273_fm_audio_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(codec); - - dev_dbg(codec->dev, "%s: enter.\n", __func__); - - ucontrol->value.integer.value[0] = wl1273->core->audio_mode; - - return 0; -} - -static int snd_wl1273_fm_audio_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(codec); - int val, r = 0; - - dev_dbg(codec->dev, "%s: enter.\n", __func__); - - val = ucontrol->value.integer.value[0]; - if (wl1273->core->audio_mode == val) - return 0; - - r = wl1273->core->set_audio(wl1273->core, val); - if (r < 0) - return r; - - return 1; -} - -static const char * const wl1273_audio_strings[] = { "Digital", "Analog" }; - -static const struct soc_enum wl1273_audio_enum = - SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(wl1273_audio_strings), - wl1273_audio_strings); - -static int snd_wl1273_fm_volume_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(codec); - - dev_dbg(codec->dev, "%s: enter.\n", __func__); - - ucontrol->value.integer.value[0] = wl1273->core->volume; - - return 0; -} - -static int snd_wl1273_fm_volume_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(codec); - int r; - - dev_dbg(codec->dev, "%s: enter.\n", __func__); - - r = wl1273->core->set_volume(wl1273->core, - ucontrol->value.integer.value[0]); - if (r) - return r; - - return 1; -} - -static const struct snd_kcontrol_new wl1273_controls[] = { - SOC_ENUM_EXT("Codec Mode", wl1273_enum, - snd_wl1273_get_audio_route, snd_wl1273_set_audio_route), - SOC_ENUM_EXT("Audio Switch", wl1273_audio_enum, - snd_wl1273_fm_audio_get, snd_wl1273_fm_audio_put), - SOC_SINGLE_EXT("Volume", 0, 0, WL1273_MAX_VOLUME, 0, - snd_wl1273_fm_volume_get, snd_wl1273_fm_volume_put), -}; - -static int wl1273_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_codec *codec = rtd->codec; - struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(codec); - - switch (wl1273->mode) { - case WL1273_MODE_BT: - snd_pcm_hw_constraint_minmax(substream->runtime, - SNDRV_PCM_HW_PARAM_RATE, - 8000, 8000); - snd_pcm_hw_constraint_minmax(substream->runtime, - SNDRV_PCM_HW_PARAM_CHANNELS, 1, 1); - break; - case WL1273_MODE_FM_RX: - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - pr_err("Cannot play in RX mode.\n"); - return -EINVAL; - } - break; - case WL1273_MODE_FM_TX: - if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { - pr_err("Cannot capture in TX mode.\n"); - return -EINVAL; - } - break; - default: - return -EINVAL; - break; - } - - return 0; -} - -static int wl1273_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(rtd->codec); - struct wl1273_core *core = wl1273->core; - unsigned int rate, width, r; - - if (params_format(params) != SNDRV_PCM_FORMAT_S16_LE) { - pr_err("Only SNDRV_PCM_FORMAT_S16_LE supported.\n"); - return -EINVAL; - } - - rate = params_rate(params); - width = hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min; - - if (wl1273->mode == WL1273_MODE_BT) { - if (rate != 8000) { - pr_err("Rate %d not supported.\n", params_rate(params)); - return -EINVAL; - } - - if (params_channels(params) != 1) { - pr_err("Only mono supported.\n"); - return -EINVAL; - } - - return 0; - } - - if (wl1273->mode == WL1273_MODE_FM_TX && - substream->stream == SNDRV_PCM_STREAM_CAPTURE) { - pr_err("Only playback supported with TX.\n"); - return -EINVAL; - } - - if (wl1273->mode == WL1273_MODE_FM_RX && - substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - pr_err("Only capture supported with RX.\n"); - return -EINVAL; - } - - if (wl1273->mode != WL1273_MODE_FM_RX && - wl1273->mode != WL1273_MODE_FM_TX) { - pr_err("Unexpected mode: %d.\n", wl1273->mode); - return -EINVAL; - } - - r = snd_wl1273_fm_set_i2s_mode(core, rate, width); - if (r) - return r; - - wl1273->channels = params_channels(params); - r = snd_wl1273_fm_set_channel_number(core, wl1273->channels); - if (r) - return r; - - return 0; -} - -static const struct snd_soc_dai_ops wl1273_dai_ops = { - .startup = wl1273_startup, - .hw_params = wl1273_hw_params, -}; - -static struct snd_soc_dai_driver wl1273_dai = { - .name = "wl1273-fm", - .playback = { - .stream_name = "Playback", - .channels_min = 1, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_8000_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE}, - .capture = { - .stream_name = "Capture", - .channels_min = 1, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_8000_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE}, - .ops = &wl1273_dai_ops, -}; - -/* Audio interface format for the soc_card driver */ -int wl1273_get_format(struct snd_soc_codec *codec, unsigned int *fmt) -{ - struct wl1273_priv *wl1273; - - if (codec == NULL || fmt == NULL) - return -EINVAL; - - wl1273 = snd_soc_codec_get_drvdata(codec); - - switch (wl1273->mode) { - case WL1273_MODE_FM_RX: - case WL1273_MODE_FM_TX: - *fmt = SND_SOC_DAIFMT_I2S | - SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_CBM_CFM; - - break; - case WL1273_MODE_BT: - *fmt = SND_SOC_DAIFMT_DSP_A | - SND_SOC_DAIFMT_IB_NF | - SND_SOC_DAIFMT_CBM_CFM; - - break; - default: - return -EINVAL; - } - - return 0; -} -EXPORT_SYMBOL_GPL(wl1273_get_format); - -static int wl1273_probe(struct snd_soc_codec *codec) -{ - struct wl1273_core **core = codec->dev->platform_data; - struct wl1273_priv *wl1273; - int r; - - dev_dbg(codec->dev, "%s.\n", __func__); - - if (!core) { - dev_err(codec->dev, "Platform data is missing.\n"); - return -EINVAL; - } - - wl1273 = kzalloc(sizeof(struct wl1273_priv), GFP_KERNEL); - if (wl1273 == NULL) { - dev_err(codec->dev, "Cannot allocate memory.\n"); - return -ENOMEM; - } - - wl1273->mode = WL1273_MODE_BT; - wl1273->core = *core; - - snd_soc_codec_set_drvdata(codec, wl1273); - - r = snd_soc_add_codec_controls(codec, wl1273_controls, - ARRAY_SIZE(wl1273_controls)); - if (r) - kfree(wl1273); - - return r; -} - -static int wl1273_remove(struct snd_soc_codec *codec) -{ - struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(codec); - - dev_dbg(codec->dev, "%s\n", __func__); - kfree(wl1273); - - return 0; -} - -static struct snd_soc_codec_driver soc_codec_dev_wl1273 = { - .probe = wl1273_probe, - .remove = wl1273_remove, -}; - -static int __devinit wl1273_platform_probe(struct platform_device *pdev) -{ - return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wl1273, - &wl1273_dai, 1); -} - -static int __devexit wl1273_platform_remove(struct platform_device *pdev) -{ - snd_soc_unregister_codec(&pdev->dev); - return 0; -} - -MODULE_ALIAS("platform:wl1273-codec"); - -static struct platform_driver wl1273_platform_driver = { - .driver = { - .name = "wl1273-codec", - .owner = THIS_MODULE, - }, - .probe = wl1273_platform_probe, - .remove = __devexit_p(wl1273_platform_remove), -}; - -module_platform_driver(wl1273_platform_driver); - -MODULE_AUTHOR("Matti Aaltonen <matti.j.aaltonen@nokia.com>"); -MODULE_DESCRIPTION("ASoC WL1273 codec driver"); -MODULE_LICENSE("GPL"); |