mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
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>
190 lines
4.5 KiB
C
190 lines
4.5 KiB
C
/*
|
|
* osk5912.c -- SoC audio for OSK 5912
|
|
*
|
|
* Copyright (C) 2008 Mistral Solutions
|
|
*
|
|
* Contact: Arun KS <arunks@mistralsolutions.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 <asm/mach-types.h>
|
|
#include <mach/hardware.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/module.h>
|
|
#include <plat/mcbsp.h>
|
|
|
|
#include "omap-mcbsp.h"
|
|
#include "omap-pcm.h"
|
|
#include "../codecs/tlv320aic23.h"
|
|
|
|
#define CODEC_CLOCK 12000000
|
|
|
|
static struct clk *tlv320aic23_mclk;
|
|
|
|
static int osk_startup(struct snd_pcm_substream *substream)
|
|
{
|
|
return clk_enable(tlv320aic23_mclk);
|
|
}
|
|
|
|
static void osk_shutdown(struct snd_pcm_substream *substream)
|
|
{
|
|
clk_disable(tlv320aic23_mclk);
|
|
}
|
|
|
|
static int osk_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->codec_dai;
|
|
int err;
|
|
|
|
/* Set the codec system clock for DAC and ADC */
|
|
err =
|
|
snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN);
|
|
|
|
if (err < 0) {
|
|
printk(KERN_ERR "can't set codec system clock\n");
|
|
return err;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static struct snd_soc_ops osk_ops = {
|
|
.startup = osk_startup,
|
|
.hw_params = osk_hw_params,
|
|
.shutdown = osk_shutdown,
|
|
};
|
|
|
|
static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
|
|
SND_SOC_DAPM_HP("Headphone Jack", NULL),
|
|
SND_SOC_DAPM_LINE("Line In", NULL),
|
|
SND_SOC_DAPM_MIC("Mic Jack", NULL),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route audio_map[] = {
|
|
{"Headphone Jack", NULL, "LHPOUT"},
|
|
{"Headphone Jack", NULL, "RHPOUT"},
|
|
|
|
{"LLINEIN", NULL, "Line In"},
|
|
{"RLINEIN", NULL, "Line In"},
|
|
|
|
{"MICIN", NULL, "Mic Jack"},
|
|
};
|
|
|
|
/* Digital audio interface glue - connects codec <--> CPU */
|
|
static struct snd_soc_dai_link osk_dai = {
|
|
.name = "TLV320AIC23",
|
|
.stream_name = "AIC23",
|
|
.cpu_dai_name = "omap-mcbsp.1",
|
|
.codec_dai_name = "tlv320aic23-hifi",
|
|
.platform_name = "omap-pcm-audio",
|
|
.codec_name = "tlv320aic23-codec",
|
|
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM,
|
|
.ops = &osk_ops,
|
|
};
|
|
|
|
/* Audio machine driver */
|
|
static struct snd_soc_card snd_soc_card_osk = {
|
|
.name = "OSK5912",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = &osk_dai,
|
|
.num_links = 1,
|
|
|
|
.dapm_widgets = tlv320aic23_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
|
|
.dapm_routes = audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(audio_map),
|
|
};
|
|
|
|
static struct platform_device *osk_snd_device;
|
|
|
|
static int __init osk_soc_init(void)
|
|
{
|
|
int err;
|
|
u32 curRate;
|
|
struct device *dev;
|
|
|
|
if (!(machine_is_omap_osk()))
|
|
return -ENODEV;
|
|
|
|
osk_snd_device = platform_device_alloc("soc-audio", -1);
|
|
if (!osk_snd_device)
|
|
return -ENOMEM;
|
|
|
|
platform_set_drvdata(osk_snd_device, &snd_soc_card_osk);
|
|
err = platform_device_add(osk_snd_device);
|
|
if (err)
|
|
goto err1;
|
|
|
|
dev = &osk_snd_device->dev;
|
|
|
|
tlv320aic23_mclk = clk_get(dev, "mclk");
|
|
if (IS_ERR(tlv320aic23_mclk)) {
|
|
printk(KERN_ERR "Could not get mclk clock\n");
|
|
err = PTR_ERR(tlv320aic23_mclk);
|
|
goto err2;
|
|
}
|
|
|
|
/*
|
|
* Configure 12 MHz output on MCLK.
|
|
*/
|
|
curRate = (uint) clk_get_rate(tlv320aic23_mclk);
|
|
if (curRate != CODEC_CLOCK) {
|
|
if (clk_set_rate(tlv320aic23_mclk, CODEC_CLOCK)) {
|
|
printk(KERN_ERR "Cannot set MCLK for AIC23 CODEC\n");
|
|
err = -ECANCELED;
|
|
goto err3;
|
|
}
|
|
}
|
|
|
|
printk(KERN_INFO "MCLK = %d [%d]\n",
|
|
(uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK);
|
|
|
|
return 0;
|
|
|
|
err3:
|
|
clk_put(tlv320aic23_mclk);
|
|
err2:
|
|
platform_device_del(osk_snd_device);
|
|
err1:
|
|
platform_device_put(osk_snd_device);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
static void __exit osk_soc_exit(void)
|
|
{
|
|
clk_put(tlv320aic23_mclk);
|
|
platform_device_unregister(osk_snd_device);
|
|
}
|
|
|
|
module_init(osk_soc_init);
|
|
module_exit(osk_soc_exit);
|
|
|
|
MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
|
|
MODULE_DESCRIPTION("ALSA SoC OSK 5912");
|
|
MODULE_LICENSE("GPL");
|