diff options
Diffstat (limited to 'sound/soc/omap/n810.c')
| -rw-r--r-- | sound/soc/omap/n810.c | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/sound/soc/omap/n810.c b/sound/soc/omap/n810.c new file mode 100644 index 00000000000..83b1eb4e40f --- /dev/null +++ b/sound/soc/omap/n810.c @@ -0,0 +1,336 @@ +/* + * n810.c -- SoC audio for Nokia N810 + * + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Jarkko Nikula <jarkko.nikula@nokia.com> + * + * 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/clk.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/arch/hardware.h> +#include <asm/arch/gpio.h> +#include <asm/arch/mcbsp.h> + +#include "omap-mcbsp.h" +#include "omap-pcm.h" +#include "../codecs/tlv320aic3x.h" + +#define RX44_HEADSET_AMP_GPIO 10 +#define RX44_SPEAKER_AMP_GPIO 101 + +static struct clk *sys_clkout2; +static struct clk *sys_clkout2_src; +static struct clk *func96m_clk; + +static int n810_spk_func; +static int n810_jack_func; + +static void n810_ext_control(struct snd_soc_codec *codec) +{ + snd_soc_dapm_set_endpoint(codec, "Ext Spk", n810_spk_func); + snd_soc_dapm_set_endpoint(codec, "Headphone Jack", n810_jack_func); + + snd_soc_dapm_sync_endpoints(codec); +} + +static int n810_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->socdev->codec; + + n810_ext_control(codec); + return clk_enable(sys_clkout2); +} + +static void n810_shutdown(struct snd_pcm_substream *substream) +{ + clk_disable(sys_clkout2); +} + +static int n810_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_codec_dai *codec_dai = rtd->dai->codec_dai; + struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; + int err; + + /* Set codec DAI configuration */ + err = codec_dai->dai_ops.set_fmt(codec_dai, + SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM); + if (err < 0) + return err; + + /* Set cpu DAI configuration */ + err = cpu_dai->dai_ops.set_fmt(cpu_dai, + SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM); + if (err < 0) + return err; + + /* Set the codec system clock for DAC and ADC */ + err = codec_dai->dai_ops.set_sysclk(codec_dai, 0, 12000000, + SND_SOC_CLOCK_IN); + + return err; +} + +static struct snd_soc_ops n810_ops = { + .startup = n810_startup, + .hw_params = n810_hw_params, + .shutdown = n810_shutdown, +}; + +static int n810_get_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = n810_spk_func; + + return 0; +} + +static int n810_set_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + if (n810_spk_func == ucontrol->value.integer.value[0]) + return 0; + + n810_spk_func = ucontrol->value.integer.value[0]; + n810_ext_control(codec); + + return 1; +} + +static int n810_get_jack(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = n810_jack_func; + + return 0; +} + +static int n810_set_jack(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + if (n810_jack_func == ucontrol->value.integer.value[0]) + return 0; + + n810_jack_func = ucontrol->value.integer.value[0]; + n810_ext_control(codec); + + return 1; +} + +static int n810_spk_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + if (SND_SOC_DAPM_EVENT_ON(event)) + omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 1); + else + omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 0); + + return 0; +} + +static int n810_jack_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + if (SND_SOC_DAPM_EVENT_ON(event)) + omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 1); + else + omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 0); + + return 0; +} + +static const struct snd_soc_dapm_widget aic33_dapm_widgets[] = { + SND_SOC_DAPM_SPK("Ext Spk", n810_spk_event), + SND_SOC_DAPM_HP("Headphone Jack", n810_jack_event), +}; + +static const char *audio_map[][3] = { + {"Headphone Jack", NULL, "HPLOUT"}, + {"Headphone Jack", NULL, "HPROUT"}, + + {"Ext Spk", NULL, "LLOUT"}, + {"Ext Spk", NULL, "RLOUT"}, +}; + +static const char *spk_function[] = {"Off", "On"}; +static const char *jack_function[] = {"Off", "Headphone"}; +static const struct soc_enum n810_enum[] = { + SOC_ENUM_SINGLE_EXT(2, spk_function), + SOC_ENUM_SINGLE_EXT(3, jack_function), +}; + +static const struct snd_kcontrol_new aic33_n810_controls[] = { + SOC_ENUM_EXT("Speaker Function", n810_enum[0], + n810_get_spk, n810_set_spk), + SOC_ENUM_EXT("Jack Function", n810_enum[1], + n810_get_jack, n810_set_jack), +}; + +static int n810_aic33_init(struct snd_soc_codec *codec) +{ + int i, err; + + /* Not connected */ + snd_soc_dapm_set_endpoint(codec, "MONO_LOUT", 0); + snd_soc_dapm_set_endpoint(codec, "HPLCOM", 0); + snd_soc_dapm_set_endpoint(codec, "HPRCOM", 0); + + /* Add N810 specific controls */ + for (i = 0; i < ARRAY_SIZE(aic33_n810_controls); i++) { + err = snd_ctl_add(codec->card, + snd_soc_cnew(&aic33_n810_controls[i], codec, NULL)); + if (err < 0) + return err; + } + + /* Add N810 specific widgets */ + for (i = 0; i < ARRAY_SIZE(aic33_dapm_widgets); i++) + snd_soc_dapm_new_control(codec, &aic33_dapm_widgets[i]); + + /* Set up N810 specific audio path audio_map */ + for (i = 0; i < ARRAY_SIZE(audio_map); i++) + snd_soc_dapm_connect_input(codec, audio_map[i][0], + audio_map[i][1], audio_map[i][2]); + + snd_soc_dapm_sync_endpoints(codec); + + return 0; +} + +/* Digital audio interface glue - connects codec <--> CPU */ +static struct snd_soc_dai_link n810_dai = { + .name = "TLV320AIC33", + .stream_name = "AIC33", + .cpu_dai = &omap_mcbsp_dai[0], + .codec_dai = &aic3x_dai, + .init = n810_aic33_init, + .ops = &n810_ops, +}; + +/* Audio machine driver */ +static struct snd_soc_machine snd_soc_machine_n810 = { + .name = "N810", + .dai_link = &n810_dai, + .num_links = 1, +}; + +/* Audio private data */ +static struct aic3x_setup_data n810_aic33_setup = { + .i2c_address = 0x18, +}; + +/* Audio subsystem */ +static struct snd_soc_device n810_snd_devdata = { + .machine = &snd_soc_machine_n810, + .platform = &omap_soc_platform, + .codec_dev = &soc_codec_dev_aic3x, + .codec_data = &n810_aic33_setup, +}; + +static struct platform_device *n810_snd_device; + +static int __init n810_soc_init(void) +{ + int err; + struct device *dev; + + if (!machine_is_nokia_n810()) + return -ENODEV; + + n810_snd_device = platform_device_alloc("soc-audio", -1); + if (!n810_snd_device) + return -ENOMEM; + + platform_set_drvdata(n810_snd_device, &n810_snd_devdata); + n810_snd_devdata.dev = &n810_snd_device->dev; + *(unsigned int *)n810_dai.cpu_dai->private_data = 1; /* McBSP2 */ + err = platform_device_add(n810_snd_device); + if (err) + goto err1; + + dev = &n810_snd_device->dev; + + sys_clkout2_src = clk_get(dev, "sys_clkout2_src"); + if (IS_ERR(sys_clkout2_src)) { + dev_err(dev, "Could not get sys_clkout2_src clock\n"); + return -ENODEV; + } + sys_clkout2 = clk_get(dev, "sys_clkout2"); + if (IS_ERR(sys_clkout2)) { + dev_err(dev, "Could not get sys_clkout2\n"); + goto err1; + } + /* + * Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use + * 96 MHz as its parent in order to get 12 MHz + */ + func96m_clk = clk_get(dev, "func_96m_ck"); + if (IS_ERR(func96m_clk)) { + dev_err(dev, "Could not get func 96M clock\n"); + goto err2; + } + clk_set_parent(sys_clkout2_src, func96m_clk); + clk_set_rate(sys_clkout2, 12000000); + + if (omap_request_gpio(RX44_HEADSET_AMP_GPIO) < 0) + BUG(); + if (omap_request_gpio(RX44_SPEAKER_AMP_GPIO) < 0) + BUG(); + omap_set_gpio_direction(RX44_HEADSET_AMP_GPIO, 0); + omap_set_gpio_direction(RX44_SPEAKER_AMP_GPIO, 0); + + return 0; +err2: + clk_put(sys_clkout2); + platform_device_del(n810_snd_device); +err1: + platform_device_put(n810_snd_device); + + return err; + +} + +static void __exit n810_soc_exit(void) +{ + platform_device_unregister(n810_snd_device); +} + +module_init(n810_soc_init); +module_exit(n810_soc_exit); + +MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@nokia.com>"); +MODULE_DESCRIPTION("ALSA SoC Nokia N810"); +MODULE_LICENSE("GPL"); |