mirror of
https://github.com/torvalds/linux.git
synced 2024-11-11 22:51:42 +00:00
ASoC: blackfin: Remove bf5xx-tdm driver
Now that the bf5xx-i2s driver supports TDM mode and all users of the bf5xx-tdm driver have been switch over to using the bf5xx-i2s driver there is no need to keep the b5fxx-tdm driver around. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Lars-Peter Clausen
Mark Brown
parent
34f4095564
commit
cc37961b21
@ -89,16 +89,6 @@ config SND_BFIN_AD73311_SE
|
||||
Enter the GPIO used to control AD73311's SE pin. Acceptable
|
||||
values are 0 to 7
|
||||
|
||||
config SND_BF5XX_TDM
|
||||
tristate "SoC I2S(TDM mode) Audio for the ADI BF5xx chip"
|
||||
depends on (BLACKFIN && SND_SOC)
|
||||
select SND_BF5XX_SOC_SPORT
|
||||
help
|
||||
Say Y or M if you want to add support for codecs attached to
|
||||
the Blackfin SPORT (synchronous serial ports) interface in TDM
|
||||
mode.
|
||||
You will also need to select the audio interfaces to support below.
|
||||
|
||||
config SND_BF5XX_AC97
|
||||
tristate "SoC AC97 Audio for the ADI BF5xx chip"
|
||||
depends on BLACKFIN
|
||||
@ -174,9 +164,6 @@ config SND_BF5XX_SOC_I2S
|
||||
config SND_BF6XX_SOC_I2S
|
||||
tristate
|
||||
|
||||
config SND_BF5XX_SOC_TDM
|
||||
tristate
|
||||
|
||||
config SND_BF5XX_SOC_AC97
|
||||
tristate
|
||||
|
||||
|
||||
@ -1,23 +1,19 @@
|
||||
# Blackfin Platform Support
|
||||
snd-bf5xx-ac97-objs := bf5xx-ac97-pcm.o
|
||||
snd-bf5xx-i2s-objs := bf5xx-i2s-pcm.o
|
||||
snd-bf5xx-tdm-objs := bf5xx-tdm-pcm.o
|
||||
snd-soc-bf5xx-sport-objs := bf5xx-sport.o
|
||||
snd-soc-bf6xx-sport-objs := bf6xx-sport.o
|
||||
snd-soc-bf5xx-ac97-objs := bf5xx-ac97.o
|
||||
snd-soc-bf5xx-i2s-objs := bf5xx-i2s.o
|
||||
snd-soc-bf6xx-i2s-objs := bf6xx-i2s.o
|
||||
snd-soc-bf5xx-tdm-objs := bf5xx-tdm.o
|
||||
|
||||
obj-$(CONFIG_SND_BF5XX_AC97) += snd-bf5xx-ac97.o
|
||||
obj-$(CONFIG_SND_BF5XX_I2S) += snd-bf5xx-i2s.o
|
||||
obj-$(CONFIG_SND_BF5XX_TDM) += snd-bf5xx-tdm.o
|
||||
obj-$(CONFIG_SND_BF5XX_SOC_SPORT) += snd-soc-bf5xx-sport.o
|
||||
obj-$(CONFIG_SND_BF6XX_SOC_SPORT) += snd-soc-bf6xx-sport.o
|
||||
obj-$(CONFIG_SND_BF5XX_SOC_AC97) += snd-soc-bf5xx-ac97.o
|
||||
obj-$(CONFIG_SND_BF5XX_SOC_I2S) += snd-soc-bf5xx-i2s.o
|
||||
obj-$(CONFIG_SND_BF6XX_SOC_I2S) += snd-soc-bf6xx-i2s.o
|
||||
obj-$(CONFIG_SND_BF5XX_SOC_TDM) += snd-soc-bf5xx-tdm.o
|
||||
|
||||
# Blackfin Machine Support
|
||||
snd-ad1836-objs := bf5xx-ad1836.o
|
||||
|
||||
@ -1,343 +0,0 @@
|
||||
/*
|
||||
* File: sound/soc/blackfin/bf5xx-tdm-pcm.c
|
||||
* Author: Barry Song <Barry.Song@analog.com>
|
||||
*
|
||||
* Created: Tue June 06 2009
|
||||
* Description: DMA driver for tdm codec
|
||||
*
|
||||
* Modified:
|
||||
* Copyright 2009 Analog Devices Inc.
|
||||
*
|
||||
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* 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, see the file COPYING, or write
|
||||
* to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/dma-mapping.h>
|
||||
#include <linux/gfp.h>
|
||||
|
||||
#include <sound/core.h>
|
||||
#include <sound/pcm.h>
|
||||
#include <sound/pcm_params.h>
|
||||
#include <sound/soc.h>
|
||||
|
||||
#include <asm/dma.h>
|
||||
|
||||
#include "bf5xx-tdm.h"
|
||||
#include "bf5xx-sport.h"
|
||||
|
||||
#define PCM_BUFFER_MAX 0x8000
|
||||
#define FRAGMENT_SIZE_MIN (4*1024)
|
||||
#define FRAGMENTS_MIN 2
|
||||
#define FRAGMENTS_MAX 32
|
||||
|
||||
static void bf5xx_dma_irq(void *data)
|
||||
{
|
||||
struct snd_pcm_substream *pcm = data;
|
||||
snd_pcm_period_elapsed(pcm);
|
||||
}
|
||||
|
||||
static const struct snd_pcm_hardware bf5xx_pcm_hardware = {
|
||||
.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
|
||||
SNDRV_PCM_INFO_RESUME),
|
||||
.formats = SNDRV_PCM_FMTBIT_S32_LE,
|
||||
.rates = SNDRV_PCM_RATE_48000,
|
||||
.channels_min = 2,
|
||||
.channels_max = 8,
|
||||
.buffer_bytes_max = PCM_BUFFER_MAX,
|
||||
.period_bytes_min = FRAGMENT_SIZE_MIN,
|
||||
.period_bytes_max = PCM_BUFFER_MAX/2,
|
||||
.periods_min = FRAGMENTS_MIN,
|
||||
.periods_max = FRAGMENTS_MAX,
|
||||
};
|
||||
|
||||
static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream,
|
||||
struct snd_pcm_hw_params *params)
|
||||
{
|
||||
size_t size = bf5xx_pcm_hardware.buffer_bytes_max;
|
||||
snd_pcm_lib_malloc_pages(substream, size * 4);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream)
|
||||
{
|
||||
snd_pcm_lib_free_pages(substream);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream)
|
||||
{
|
||||
struct snd_pcm_runtime *runtime = substream->runtime;
|
||||
struct sport_device *sport = runtime->private_data;
|
||||
int fragsize_bytes = frames_to_bytes(runtime, runtime->period_size);
|
||||
|
||||
fragsize_bytes /= runtime->channels;
|
||||
/* inflate the fragsize to match the dma width of SPORT */
|
||||
fragsize_bytes *= 8;
|
||||
|
||||
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
|
||||
sport_set_tx_callback(sport, bf5xx_dma_irq, substream);
|
||||
sport_config_tx_dma(sport, runtime->dma_area,
|
||||
runtime->periods, fragsize_bytes);
|
||||
} else {
|
||||
sport_set_rx_callback(sport, bf5xx_dma_irq, substream);
|
||||
sport_config_rx_dma(sport, runtime->dma_area,
|
||||
runtime->periods, fragsize_bytes);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
|
||||
{
|
||||
struct snd_pcm_runtime *runtime = substream->runtime;
|
||||
struct sport_device *sport = runtime->private_data;
|
||||
int ret = 0;
|
||||
|
||||
switch (cmd) {
|
||||
case SNDRV_PCM_TRIGGER_START:
|
||||
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
||||
sport_tx_start(sport);
|
||||
else
|
||||
sport_rx_start(sport);
|
||||
break;
|
||||
case SNDRV_PCM_TRIGGER_STOP:
|
||||
case SNDRV_PCM_TRIGGER_SUSPEND:
|
||||
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
|
||||
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
||||
sport_tx_stop(sport);
|
||||
else
|
||||
sport_rx_stop(sport);
|
||||
break;
|
||||
default:
|
||||
ret = -EINVAL;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream)
|
||||
{
|
||||
struct snd_pcm_runtime *runtime = substream->runtime;
|
||||
struct sport_device *sport = runtime->private_data;
|
||||
unsigned int diff;
|
||||
snd_pcm_uframes_t frames;
|
||||
|
||||
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
|
||||
diff = sport_curr_offset_tx(sport);
|
||||
frames = diff / (8*4); /* 32 bytes per frame */
|
||||
} else {
|
||||
diff = sport_curr_offset_rx(sport);
|
||||
frames = diff / (8*4);
|
||||
}
|
||||
return frames;
|
||||
}
|
||||
|
||||
static int bf5xx_pcm_open(struct snd_pcm_substream *substream)
|
||||
{
|
||||
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
||||
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
|
||||
struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai);
|
||||
struct snd_pcm_runtime *runtime = substream->runtime;
|
||||
struct snd_dma_buffer *buf = &substream->dma_buffer;
|
||||
|
||||
int ret = 0;
|
||||
|
||||
snd_soc_set_runtime_hwparams(substream, &bf5xx_pcm_hardware);
|
||||
|
||||
ret = snd_pcm_hw_constraint_integer(runtime,
|
||||
SNDRV_PCM_HW_PARAM_PERIODS);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
|
||||
if (sport_handle != NULL) {
|
||||
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
||||
sport_handle->tx_buf = buf->area;
|
||||
else
|
||||
sport_handle->rx_buf = buf->area;
|
||||
|
||||
runtime->private_data = sport_handle;
|
||||
} else {
|
||||
pr_err("sport_handle is NULL\n");
|
||||
ret = -ENODEV;
|
||||
}
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
|
||||
snd_pcm_uframes_t pos, void *buf, snd_pcm_uframes_t count)
|
||||
{
|
||||
struct snd_pcm_runtime *runtime = substream->runtime;
|
||||
struct sport_device *sport = runtime->private_data;
|
||||
struct bf5xx_tdm_port *tdm_port = sport->private_data;
|
||||
unsigned int *src;
|
||||
unsigned int *dst;
|
||||
int i;
|
||||
|
||||
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
|
||||
src = buf;
|
||||
dst = (unsigned int *)substream->runtime->dma_area;
|
||||
|
||||
dst += pos * 8;
|
||||
while (count--) {
|
||||
for (i = 0; i < substream->runtime->channels; i++)
|
||||
*(dst + tdm_port->tx_map[i]) = *src++;
|
||||
dst += 8;
|
||||
}
|
||||
} else {
|
||||
src = (unsigned int *)substream->runtime->dma_area;
|
||||
dst = buf;
|
||||
|
||||
src += pos * 8;
|
||||
while (count--) {
|
||||
for (i = 0; i < substream->runtime->channels; i++)
|
||||
*dst++ = *(src + tdm_port->rx_map[i]);
|
||||
src += 8;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bf5xx_pcm_silence(struct snd_pcm_substream *substream,
|
||||
int channel, snd_pcm_uframes_t pos, snd_pcm_uframes_t count)
|
||||
{
|
||||
unsigned char *buf = substream->runtime->dma_area;
|
||||
buf += pos * 8 * 4;
|
||||
memset(buf, '\0', count * 8 * 4);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct snd_pcm_ops bf5xx_pcm_tdm_ops = {
|
||||
.open = bf5xx_pcm_open,
|
||||
.ioctl = snd_pcm_lib_ioctl,
|
||||
.hw_params = bf5xx_pcm_hw_params,
|
||||
.hw_free = bf5xx_pcm_hw_free,
|
||||
.prepare = bf5xx_pcm_prepare,
|
||||
.trigger = bf5xx_pcm_trigger,
|
||||
.pointer = bf5xx_pcm_pointer,
|
||||
.copy = bf5xx_pcm_copy,
|
||||
.silence = bf5xx_pcm_silence,
|
||||
};
|
||||
|
||||
static int bf5xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
|
||||
{
|
||||
struct snd_pcm_substream *substream = pcm->streams[stream].substream;
|
||||
struct snd_dma_buffer *buf = &substream->dma_buffer;
|
||||
size_t size = bf5xx_pcm_hardware.buffer_bytes_max;
|
||||
|
||||
buf->dev.type = SNDRV_DMA_TYPE_DEV;
|
||||
buf->dev.dev = pcm->card->dev;
|
||||
buf->private_data = NULL;
|
||||
buf->area = dma_alloc_coherent(pcm->card->dev, size * 4,
|
||||
&buf->addr, GFP_KERNEL);
|
||||
if (!buf->area) {
|
||||
pr_err("Failed to allocate dma memory - Please increase uncached DMA memory region\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
buf->bytes = size;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void bf5xx_pcm_free_dma_buffers(struct snd_pcm *pcm)
|
||||
{
|
||||
struct snd_pcm_substream *substream;
|
||||
struct snd_dma_buffer *buf;
|
||||
int stream;
|
||||
|
||||
for (stream = 0; stream < 2; stream++) {
|
||||
substream = pcm->streams[stream].substream;
|
||||
if (!substream)
|
||||
continue;
|
||||
|
||||
buf = &substream->dma_buffer;
|
||||
if (!buf->area)
|
||||
continue;
|
||||
dma_free_coherent(NULL, buf->bytes, buf->area, 0);
|
||||
buf->area = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static int bf5xx_pcm_tdm_new(struct snd_soc_pcm_runtime *rtd)
|
||||
{
|
||||
struct snd_card *card = rtd->card->snd_card;
|
||||
struct snd_pcm *pcm = rtd->pcm;
|
||||
int ret = 0;
|
||||
|
||||
if (!card->dev->dma_mask)
|
||||
card->dev->dma_mask = &bf5xx_pcm_dmamask;
|
||||
if (!card->dev->coherent_dma_mask)
|
||||
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
|
||||
|
||||
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
|
||||
ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
|
||||
SNDRV_PCM_STREAM_PLAYBACK);
|
||||
if (ret)
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
|
||||
ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
|
||||
SNDRV_PCM_STREAM_CAPTURE);
|
||||
if (ret)
|
||||
goto out;
|
||||
}
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct snd_soc_platform_driver bf5xx_tdm_soc_platform = {
|
||||
.ops = &bf5xx_pcm_tdm_ops,
|
||||
.pcm_new = bf5xx_pcm_tdm_new,
|
||||
.pcm_free = bf5xx_pcm_free_dma_buffers,
|
||||
};
|
||||
|
||||
static int bf5xx_soc_platform_probe(struct platform_device *pdev)
|
||||
{
|
||||
return snd_soc_register_platform(&pdev->dev, &bf5xx_tdm_soc_platform);
|
||||
}
|
||||
|
||||
static int bf5xx_soc_platform_remove(struct platform_device *pdev)
|
||||
{
|
||||
snd_soc_unregister_platform(&pdev->dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver bfin_tdm_driver = {
|
||||
.driver = {
|
||||
.name = "bfin-tdm-pcm-audio",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
|
||||
.probe = bf5xx_soc_platform_probe,
|
||||
.remove = bf5xx_soc_platform_remove,
|
||||
};
|
||||
|
||||
module_platform_driver(bfin_tdm_driver);
|
||||
|
||||
MODULE_AUTHOR("Barry Song");
|
||||
MODULE_DESCRIPTION("ADI Blackfin TDM PCM DMA module");
|
||||
MODULE_LICENSE("GPL");
|
||||
@ -1,328 +0,0 @@
|
||||
/*
|
||||
* File: sound/soc/blackfin/bf5xx-tdm.c
|
||||
* Author: Barry Song <Barry.Song@analog.com>
|
||||
*
|
||||
* Created: Thurs June 04 2009
|
||||
* Description: Blackfin I2S(TDM) CPU DAI driver
|
||||
* Even though TDM mode can be as part of I2S DAI, but there
|
||||
* are so much difference in configuration and data flow,
|
||||
* it's very ugly to integrate I2S and TDM into a module
|
||||
*
|
||||
* Modified:
|
||||
* Copyright 2009 Analog Devices Inc.
|
||||
*
|
||||
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* 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, see the file COPYING, or write
|
||||
* to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/device.h>
|
||||
#include <sound/core.h>
|
||||
#include <sound/pcm.h>
|
||||
#include <sound/pcm_params.h>
|
||||
#include <sound/initval.h>
|
||||
#include <sound/soc.h>
|
||||
|
||||
#include <asm/irq.h>
|
||||
#include <asm/portmux.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/gpio.h>
|
||||
|
||||
#include "bf5xx-sport.h"
|
||||
#include "bf5xx-tdm.h"
|
||||
|
||||
static int bf5xx_tdm_set_dai_fmt(struct snd_soc_dai *cpu_dai,
|
||||
unsigned int fmt)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
/* interface format:support TDM,slave mode */
|
||||
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
||||
case SND_SOC_DAIFMT_DSP_A:
|
||||
break;
|
||||
default:
|
||||
printk(KERN_ERR "%s: Unknown DAI format type\n", __func__);
|
||||
ret = -EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
||||
case SND_SOC_DAIFMT_CBM_CFM:
|
||||
break;
|
||||
case SND_SOC_DAIFMT_CBS_CFS:
|
||||
case SND_SOC_DAIFMT_CBM_CFS:
|
||||
case SND_SOC_DAIFMT_CBS_CFM:
|
||||
ret = -EINVAL;
|
||||
break;
|
||||
default:
|
||||
printk(KERN_ERR "%s: Unknown DAI master type\n", __func__);
|
||||
ret = -EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int bf5xx_tdm_hw_params(struct snd_pcm_substream *substream,
|
||||
struct snd_pcm_hw_params *params,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
|
||||
struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
|
||||
int ret = 0;
|
||||
|
||||
bf5xx_tdm->tcr2 &= ~0x1f;
|
||||
bf5xx_tdm->rcr2 &= ~0x1f;
|
||||
switch (params_format(params)) {
|
||||
case SNDRV_PCM_FORMAT_S32_LE:
|
||||
bf5xx_tdm->tcr2 |= 31;
|
||||
bf5xx_tdm->rcr2 |= 31;
|
||||
sport_handle->wdsize = 4;
|
||||
break;
|
||||
/* at present, we only support 32bit transfer */
|
||||
default:
|
||||
pr_err("not supported PCM format yet\n");
|
||||
return -EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!bf5xx_tdm->configured) {
|
||||
/*
|
||||
* TX and RX are not independent,they are enabled at the
|
||||
* same time, even if only one side is running. So, we
|
||||
* need to configure both of them at the time when the first
|
||||
* stream is opened.
|
||||
*
|
||||
* CPU DAI:slave mode.
|
||||
*/
|
||||
ret = sport_config_rx(sport_handle, bf5xx_tdm->rcr1,
|
||||
bf5xx_tdm->rcr2, 0, 0);
|
||||
if (ret) {
|
||||
pr_err("SPORT is busy!\n");
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
ret = sport_config_tx(sport_handle, bf5xx_tdm->tcr1,
|
||||
bf5xx_tdm->tcr2, 0, 0);
|
||||
if (ret) {
|
||||
pr_err("SPORT is busy!\n");
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
bf5xx_tdm->configured = 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void bf5xx_tdm_shutdown(struct snd_pcm_substream *substream,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
|
||||
struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
|
||||
|
||||
/* No active stream, SPORT is allowed to be configured again. */
|
||||
if (!dai->active)
|
||||
bf5xx_tdm->configured = 0;
|
||||
}
|
||||
|
||||
static int bf5xx_tdm_set_channel_map(struct snd_soc_dai *dai,
|
||||
unsigned int tx_num, unsigned int *tx_slot,
|
||||
unsigned int rx_num, unsigned int *rx_slot)
|
||||
{
|
||||
struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
|
||||
struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
|
||||
int i;
|
||||
unsigned int slot;
|
||||
unsigned int tx_mapped = 0, rx_mapped = 0;
|
||||
|
||||
if ((tx_num > BFIN_TDM_DAI_MAX_SLOTS) ||
|
||||
(rx_num > BFIN_TDM_DAI_MAX_SLOTS))
|
||||
return -EINVAL;
|
||||
|
||||
for (i = 0; i < tx_num; i++) {
|
||||
slot = tx_slot[i];
|
||||
if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
|
||||
(!(tx_mapped & (1 << slot)))) {
|
||||
bf5xx_tdm->tx_map[i] = slot;
|
||||
tx_mapped |= 1 << slot;
|
||||
} else
|
||||
return -EINVAL;
|
||||
}
|
||||
for (i = 0; i < rx_num; i++) {
|
||||
slot = rx_slot[i];
|
||||
if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
|
||||
(!(rx_mapped & (1 << slot)))) {
|
||||
bf5xx_tdm->rx_map[i] = slot;
|
||||
rx_mapped |= 1 << slot;
|
||||
} else
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int bf5xx_tdm_suspend(struct snd_soc_dai *dai)
|
||||
{
|
||||
struct sport_device *sport = snd_soc_dai_get_drvdata(dai);
|
||||
|
||||
if (dai->playback_active)
|
||||
sport_tx_stop(sport);
|
||||
if (dai->capture_active)
|
||||
sport_rx_stop(sport);
|
||||
|
||||
/* isolate sync/clock pins from codec while sports resume */
|
||||
peripheral_free_list(sport->pin_req);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bf5xx_tdm_resume(struct snd_soc_dai *dai)
|
||||
{
|
||||
int ret;
|
||||
struct sport_device *sport = snd_soc_dai_get_drvdata(dai);
|
||||
|
||||
ret = sport_set_multichannel(sport, 8, 0xFF, 0xFF, 1);
|
||||
if (ret) {
|
||||
pr_err("SPORT is busy!\n");
|
||||
ret = -EBUSY;
|
||||
}
|
||||
|
||||
ret = sport_config_rx(sport, 0, 0x1F, 0, 0);
|
||||
if (ret) {
|
||||
pr_err("SPORT is busy!\n");
|
||||
ret = -EBUSY;
|
||||
}
|
||||
|
||||
ret = sport_config_tx(sport, 0, 0x1F, 0, 0);
|
||||
if (ret) {
|
||||
pr_err("SPORT is busy!\n");
|
||||
ret = -EBUSY;
|
||||
}
|
||||
|
||||
peripheral_request_list(sport->pin_req, "soc-audio");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#else
|
||||
#define bf5xx_tdm_suspend NULL
|
||||
#define bf5xx_tdm_resume NULL
|
||||
#endif
|
||||
|
||||
static const struct snd_soc_dai_ops bf5xx_tdm_dai_ops = {
|
||||
.hw_params = bf5xx_tdm_hw_params,
|
||||
.set_fmt = bf5xx_tdm_set_dai_fmt,
|
||||
.shutdown = bf5xx_tdm_shutdown,
|
||||
.set_channel_map = bf5xx_tdm_set_channel_map,
|
||||
};
|
||||
|
||||
static struct snd_soc_dai_driver bf5xx_tdm_dai = {
|
||||
.suspend = bf5xx_tdm_suspend,
|
||||
.resume = bf5xx_tdm_resume,
|
||||
.playback = {
|
||||
.channels_min = 2,
|
||||
.channels_max = 8,
|
||||
.rates = SNDRV_PCM_RATE_48000,
|
||||
.formats = SNDRV_PCM_FMTBIT_S32_LE,},
|
||||
.capture = {
|
||||
.channels_min = 2,
|
||||
.channels_max = 8,
|
||||
.rates = SNDRV_PCM_RATE_48000,
|
||||
.formats = SNDRV_PCM_FMTBIT_S32_LE,},
|
||||
.ops = &bf5xx_tdm_dai_ops,
|
||||
};
|
||||
|
||||
static const struct snd_soc_component_driver bf5xx_tdm_component = {
|
||||
.name = "bf5xx-tdm",
|
||||
};
|
||||
|
||||
static int bfin_tdm_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct sport_device *sport_handle;
|
||||
int ret;
|
||||
|
||||
/* configure SPORT for TDM */
|
||||
sport_handle = sport_init(pdev, 4, 8 * sizeof(u32),
|
||||
sizeof(struct bf5xx_tdm_port));
|
||||
if (!sport_handle)
|
||||
return -ENODEV;
|
||||
|
||||
/* SPORT works in TDM mode */
|
||||
ret = sport_set_multichannel(sport_handle, 8, 0xFF, 0xFF, 1);
|
||||
if (ret) {
|
||||
pr_err("SPORT is busy!\n");
|
||||
ret = -EBUSY;
|
||||
goto sport_config_err;
|
||||
}
|
||||
|
||||
ret = sport_config_rx(sport_handle, 0, 0x1F, 0, 0);
|
||||
if (ret) {
|
||||
pr_err("SPORT is busy!\n");
|
||||
ret = -EBUSY;
|
||||
goto sport_config_err;
|
||||
}
|
||||
|
||||
ret = sport_config_tx(sport_handle, 0, 0x1F, 0, 0);
|
||||
if (ret) {
|
||||
pr_err("SPORT is busy!\n");
|
||||
ret = -EBUSY;
|
||||
goto sport_config_err;
|
||||
}
|
||||
|
||||
ret = snd_soc_register_component(&pdev->dev, &bf5xx_tdm_component,
|
||||
&bf5xx_tdm_dai, 1);
|
||||
if (ret) {
|
||||
pr_err("Failed to register DAI: %d\n", ret);
|
||||
goto sport_config_err;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
sport_config_err:
|
||||
sport_done(sport_handle);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int bfin_tdm_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct sport_device *sport_handle = platform_get_drvdata(pdev);
|
||||
|
||||
snd_soc_unregister_component(&pdev->dev);
|
||||
sport_done(sport_handle);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver bfin_tdm_driver = {
|
||||
.probe = bfin_tdm_probe,
|
||||
.remove = bfin_tdm_remove,
|
||||
.driver = {
|
||||
.name = "bfin-tdm",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
};
|
||||
|
||||
module_platform_driver(bfin_tdm_driver);
|
||||
|
||||
/* Module information */
|
||||
MODULE_AUTHOR("Barry Song");
|
||||
MODULE_DESCRIPTION("TDM driver for ADI Blackfin");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
@ -1,23 +0,0 @@
|
||||
/*
|
||||
* sound/soc/blackfin/bf5xx-tdm.h
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef _BF5XX_TDM_H
|
||||
#define _BF5XX_TDM_H
|
||||
|
||||
#define BFIN_TDM_DAI_MAX_SLOTS 8
|
||||
struct bf5xx_tdm_port {
|
||||
u16 tcr1;
|
||||
u16 rcr1;
|
||||
u16 tcr2;
|
||||
u16 rcr2;
|
||||
unsigned int tx_map[BFIN_TDM_DAI_MAX_SLOTS];
|
||||
unsigned int rx_map[BFIN_TDM_DAI_MAX_SLOTS];
|
||||
int configured;
|
||||
};
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user