45656b44f6
The OMAP McBSP driver stack used to contain two different drivers. One of them was used as kind low-level access to the IP, while the other driver was the ASoC DAI driver. There were global, shared structures, in different places, the McBSP instances are reffered with id numbers (sometimes 0 based, in other cases 1 based id numbers). Create one single driver for OMAP McBSP with name: omap-mcbsp. Convert the old omap-mcbsp driver initially to be a library for the omap-mcbsp DAI driver. With this change we can get rid of all global variables, structures. Further cleanup is coming... Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
280 lines
7.3 KiB
C
280 lines
7.3 KiB
C
/*
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* sdp3430.c -- SoC audio for TI OMAP3430 SDP
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*
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* Author: Misael Lopez Cruz <x0052729@ti.com>
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*
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* Based on:
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* Author: Steve Sakoman <steve@sakoman.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <linux/i2c/twl.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <mach/gpio.h>
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#include <plat/mcbsp.h>
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/* Register descriptions for twl4030 codec part */
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#include <linux/mfd/twl4030-audio.h>
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#include <linux/module.h>
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#include "omap-mcbsp.h"
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#include "omap-pcm.h"
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/* TWL4030 PMBR1 Register */
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#define TWL4030_INTBR_PMBR1 0x0D
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/* TWL4030 PMBR1 Register GPIO6 mux bit */
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#define TWL4030_GPIO6_PWM0_MUTE(value) (value << 2)
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static struct snd_soc_card snd_soc_sdp3430;
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static int sdp3430_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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int ret;
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/* Set the codec system clock for DAC and ADC */
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
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SND_SOC_CLOCK_IN);
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if (ret < 0) {
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printk(KERN_ERR "can't set codec system clock\n");
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return ret;
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}
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return 0;
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}
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static struct snd_soc_ops sdp3430_ops = {
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.hw_params = sdp3430_hw_params,
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};
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/* Headset jack */
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static struct snd_soc_jack hs_jack;
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/* Headset jack detection DAPM pins */
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static struct snd_soc_jack_pin hs_jack_pins[] = {
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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{
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.pin = "Headset Stereophone",
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.mask = SND_JACK_HEADPHONE,
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},
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};
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/* Headset jack detection gpios */
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static struct snd_soc_jack_gpio hs_jack_gpios[] = {
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{
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.gpio = (OMAP_MAX_GPIO_LINES + 2),
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.name = "hsdet-gpio",
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.report = SND_JACK_HEADSET,
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.debounce_time = 200,
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},
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};
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/* SDP3430 machine DAPM */
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static const struct snd_soc_dapm_widget sdp3430_twl4030_dapm_widgets[] = {
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SND_SOC_DAPM_MIC("Ext Mic", NULL),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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/* External Mics: MAINMIC, SUBMIC with bias*/
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{"MAINMIC", NULL, "Mic Bias 1"},
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{"SUBMIC", NULL, "Mic Bias 2"},
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{"Mic Bias 1", NULL, "Ext Mic"},
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{"Mic Bias 2", NULL, "Ext Mic"},
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/* External Speakers: HFL, HFR */
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{"Ext Spk", NULL, "HFL"},
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{"Ext Spk", NULL, "HFR"},
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/* Headset Mic: HSMIC with bias */
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{"HSMIC", NULL, "Headset Mic Bias"},
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{"Headset Mic Bias", NULL, "Headset Mic"},
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/* Headset Stereophone (Headphone): HSOL, HSOR */
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{"Headset Stereophone", NULL, "HSOL"},
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{"Headset Stereophone", NULL, "HSOR"},
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};
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static int sdp3430_twl4030_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_codec *codec = rtd->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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int ret;
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/* SDP3430 connected pins */
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snd_soc_dapm_enable_pin(dapm, "Ext Mic");
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snd_soc_dapm_enable_pin(dapm, "Ext Spk");
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snd_soc_dapm_disable_pin(dapm, "Headset Mic");
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snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
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/* TWL4030 not connected pins */
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snd_soc_dapm_nc_pin(dapm, "AUXL");
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snd_soc_dapm_nc_pin(dapm, "AUXR");
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snd_soc_dapm_nc_pin(dapm, "CARKITMIC");
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snd_soc_dapm_nc_pin(dapm, "DIGIMIC0");
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snd_soc_dapm_nc_pin(dapm, "DIGIMIC1");
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snd_soc_dapm_nc_pin(dapm, "OUTL");
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snd_soc_dapm_nc_pin(dapm, "OUTR");
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snd_soc_dapm_nc_pin(dapm, "EARPIECE");
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snd_soc_dapm_nc_pin(dapm, "PREDRIVEL");
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snd_soc_dapm_nc_pin(dapm, "PREDRIVER");
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snd_soc_dapm_nc_pin(dapm, "CARKITL");
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snd_soc_dapm_nc_pin(dapm, "CARKITR");
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/* Headset jack detection */
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ret = snd_soc_jack_new(codec, "Headset Jack",
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SND_JACK_HEADSET, &hs_jack);
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if (ret)
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return ret;
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ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
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hs_jack_pins);
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if (ret)
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return ret;
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ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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return ret;
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}
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static int sdp3430_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_codec *codec = rtd->codec;
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unsigned short reg;
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/* Enable voice interface */
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reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF);
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reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN;
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codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg);
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return 0;
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}
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/* Digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link sdp3430_dai[] = {
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{
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.name = "TWL4030 I2S",
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.stream_name = "TWL4030 Audio",
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.cpu_dai_name = "omap-mcbsp.2",
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.codec_dai_name = "twl4030-hifi",
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.platform_name = "omap-pcm-audio",
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.codec_name = "twl4030-codec",
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM,
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.init = sdp3430_twl4030_init,
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.ops = &sdp3430_ops,
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},
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{
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.name = "TWL4030 PCM",
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.stream_name = "TWL4030 Voice",
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.cpu_dai_name = "omap-mcbsp.3",
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.codec_dai_name = "twl4030-voice",
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.platform_name = "omap-pcm-audio",
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.codec_name = "twl4030-codec",
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.dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
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SND_SOC_DAIFMT_CBM_CFM,
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.init = sdp3430_twl4030_voice_init,
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.ops = &sdp3430_ops,
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},
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};
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/* Audio machine driver */
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static struct snd_soc_card snd_soc_sdp3430 = {
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.name = "SDP3430",
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.owner = THIS_MODULE,
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.dai_link = sdp3430_dai,
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.num_links = ARRAY_SIZE(sdp3430_dai),
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.dapm_widgets = sdp3430_twl4030_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(sdp3430_twl4030_dapm_widgets),
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.dapm_routes = audio_map,
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.num_dapm_routes = ARRAY_SIZE(audio_map),
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};
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static struct platform_device *sdp3430_snd_device;
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static int __init sdp3430_soc_init(void)
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{
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int ret;
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u8 pin_mux;
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if (!machine_is_omap_3430sdp())
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return -ENODEV;
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printk(KERN_INFO "SDP3430 SoC init\n");
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sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
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if (!sdp3430_snd_device) {
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printk(KERN_ERR "Platform device allocation failed\n");
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return -ENOMEM;
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}
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platform_set_drvdata(sdp3430_snd_device, &snd_soc_sdp3430);
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/* Set TWL4030 GPIO6 as EXTMUTE signal */
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twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
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TWL4030_INTBR_PMBR1);
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pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
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pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
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twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
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TWL4030_INTBR_PMBR1);
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ret = platform_device_add(sdp3430_snd_device);
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if (ret)
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goto err1;
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return 0;
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err1:
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printk(KERN_ERR "Unable to add platform device\n");
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platform_device_put(sdp3430_snd_device);
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return ret;
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}
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module_init(sdp3430_soc_init);
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static void __exit sdp3430_soc_exit(void)
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{
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snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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platform_device_unregister(sdp3430_snd_device);
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}
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module_exit(sdp3430_soc_exit);
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MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
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MODULE_DESCRIPTION("ALSA SoC SDP3430");
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MODULE_LICENSE("GPL");
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