ASoC: Add driver for the Lyrtech SFFSDR board
The PCM3008 is used on the Lyrtech SFFSDR board, in conjunction with an FPGA that generates the bit clock and the master clock [Downgraded the rate debug print to pr_debug() in hw_params, converted asm/gpio.h to linux/gpio.h -- broonie] Signed-off-by: Hugo Villeneuve <hugo@hugovil.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
parent
1c0090c280
commit
08bd168696
|
@ -17,3 +17,13 @@ config SND_DAVINCI_SOC_EVM
|
||||||
help
|
help
|
||||||
Say Y if you want to add support for SoC audio on TI
|
Say Y if you want to add support for SoC audio on TI
|
||||||
DaVinci EVM platform.
|
DaVinci EVM platform.
|
||||||
|
|
||||||
|
config SND_DAVINCI_SOC_SFFSDR
|
||||||
|
tristate "SoC Audio support for SFFSDR"
|
||||||
|
depends on SND_DAVINCI_SOC && MACH_DAVINCI_SFFSDR
|
||||||
|
select SND_DAVINCI_SOC_I2S
|
||||||
|
select SND_SOC_PCM3008
|
||||||
|
select SFFSDR_FPGA
|
||||||
|
help
|
||||||
|
Say Y if you want to add support for SoC audio on
|
||||||
|
Lyrtech SFFSDR board.
|
||||||
|
|
|
@ -7,5 +7,7 @@ obj-$(CONFIG_SND_DAVINCI_SOC_I2S) += snd-soc-davinci-i2s.o
|
||||||
|
|
||||||
# DAVINCI Machine Support
|
# DAVINCI Machine Support
|
||||||
snd-soc-evm-objs := davinci-evm.o
|
snd-soc-evm-objs := davinci-evm.o
|
||||||
|
snd-soc-sffsdr-objs := davinci-sffsdr.o
|
||||||
|
|
||||||
obj-$(CONFIG_SND_DAVINCI_SOC_EVM) += snd-soc-evm.o
|
obj-$(CONFIG_SND_DAVINCI_SOC_EVM) += snd-soc-evm.o
|
||||||
|
obj-$(CONFIG_SND_DAVINCI_SOC_SFFSDR) += snd-soc-sffsdr.o
|
||||||
|
|
156
sound/soc/davinci/davinci-sffsdr.c
Normal file
156
sound/soc/davinci/davinci-sffsdr.c
Normal file
|
@ -0,0 +1,156 @@
|
||||||
|
/*
|
||||||
|
* ASoC driver for Lyrtech SFFSDR board.
|
||||||
|
*
|
||||||
|
* Author: Hugo Villeneuve
|
||||||
|
* Copyright (C) 2008 Lyrtech inc
|
||||||
|
*
|
||||||
|
* Based on ASoC driver for TI DAVINCI EVM platform, original copyright follow:
|
||||||
|
* Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <linux/module.h>
|
||||||
|
#include <linux/moduleparam.h>
|
||||||
|
#include <linux/timer.h>
|
||||||
|
#include <linux/interrupt.h>
|
||||||
|
#include <linux/platform_device.h>
|
||||||
|
#include <linux/gpio.h>
|
||||||
|
#include <sound/core.h>
|
||||||
|
#include <sound/pcm.h>
|
||||||
|
#include <sound/soc.h>
|
||||||
|
#include <sound/soc-dapm.h>
|
||||||
|
|
||||||
|
#include <asm/dma.h>
|
||||||
|
#include <asm/plat-sffsdr/sffsdr-fpga.h>
|
||||||
|
|
||||||
|
#include <mach/mcbsp.h>
|
||||||
|
#include <mach/edma.h>
|
||||||
|
|
||||||
|
#include "../codecs/pcm3008.h"
|
||||||
|
#include "davinci-pcm.h"
|
||||||
|
#include "davinci-i2s.h"
|
||||||
|
|
||||||
|
static int sffsdr_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 *cpu_dai = rtd->dai->cpu_dai;
|
||||||
|
int fs;
|
||||||
|
int ret = 0;
|
||||||
|
|
||||||
|
/* Set cpu DAI configuration:
|
||||||
|
* CLKX and CLKR are the inputs for the Sample Rate Generator.
|
||||||
|
* FSX and FSR are outputs, driven by the sample Rate Generator. */
|
||||||
|
ret = snd_soc_dai_set_fmt(cpu_dai,
|
||||||
|
SND_SOC_DAIFMT_RIGHT_J |
|
||||||
|
SND_SOC_DAIFMT_CBM_CFS |
|
||||||
|
SND_SOC_DAIFMT_IB_NF);
|
||||||
|
if (ret < 0)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
/* Fsref can be 32000, 44100 or 48000. */
|
||||||
|
fs = params_rate(params);
|
||||||
|
|
||||||
|
pr_debug("sffsdr_hw_params: rate = %d Hz\n", fs);
|
||||||
|
|
||||||
|
return sffsdr_fpga_set_codec_fs(fs);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct snd_soc_ops sffsdr_ops = {
|
||||||
|
.hw_params = sffsdr_hw_params,
|
||||||
|
};
|
||||||
|
|
||||||
|
/* davinci-sffsdr digital audio interface glue - connects codec <--> CPU */
|
||||||
|
static struct snd_soc_dai_link sffsdr_dai = {
|
||||||
|
.name = "PCM3008", /* Codec name */
|
||||||
|
.stream_name = "PCM3008 HiFi",
|
||||||
|
.cpu_dai = &davinci_i2s_dai,
|
||||||
|
.codec_dai = &pcm3008_dai,
|
||||||
|
.ops = &sffsdr_ops,
|
||||||
|
};
|
||||||
|
|
||||||
|
/* davinci-sffsdr audio machine driver */
|
||||||
|
static struct snd_soc_machine snd_soc_machine_sffsdr = {
|
||||||
|
.name = "DaVinci SFFSDR",
|
||||||
|
.dai_link = &sffsdr_dai,
|
||||||
|
.num_links = 1,
|
||||||
|
};
|
||||||
|
|
||||||
|
/* sffsdr audio private data */
|
||||||
|
static struct pcm3008_setup_data sffsdr_pcm3008_setup = {
|
||||||
|
.dem0_pin = GPIO(45),
|
||||||
|
.dem1_pin = GPIO(46),
|
||||||
|
.pdad_pin = GPIO(47),
|
||||||
|
.pdda_pin = GPIO(38),
|
||||||
|
};
|
||||||
|
|
||||||
|
/* sffsdr audio subsystem */
|
||||||
|
static struct snd_soc_device sffsdr_snd_devdata = {
|
||||||
|
.machine = &snd_soc_machine_sffsdr,
|
||||||
|
.platform = &davinci_soc_platform,
|
||||||
|
.codec_dev = &soc_codec_dev_pcm3008,
|
||||||
|
.codec_data = &sffsdr_pcm3008_setup,
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct resource sffsdr_snd_resources[] = {
|
||||||
|
{
|
||||||
|
.start = DAVINCI_MCBSP_BASE,
|
||||||
|
.end = DAVINCI_MCBSP_BASE + SZ_8K - 1,
|
||||||
|
.flags = IORESOURCE_MEM,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct evm_snd_platform_data sffsdr_snd_data = {
|
||||||
|
.tx_dma_ch = DAVINCI_DMA_MCBSP_TX,
|
||||||
|
.rx_dma_ch = DAVINCI_DMA_MCBSP_RX,
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct platform_device *sffsdr_snd_device;
|
||||||
|
|
||||||
|
static int __init sffsdr_init(void)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
sffsdr_snd_device = platform_device_alloc("soc-audio", 0);
|
||||||
|
if (!sffsdr_snd_device) {
|
||||||
|
printk(KERN_ERR "platform device allocation failed\n");
|
||||||
|
return -ENOMEM;
|
||||||
|
}
|
||||||
|
|
||||||
|
platform_set_drvdata(sffsdr_snd_device, &sffsdr_snd_devdata);
|
||||||
|
sffsdr_snd_devdata.dev = &sffsdr_snd_device->dev;
|
||||||
|
sffsdr_snd_device->dev.platform_data = &sffsdr_snd_data;
|
||||||
|
|
||||||
|
ret = platform_device_add_resources(sffsdr_snd_device,
|
||||||
|
sffsdr_snd_resources,
|
||||||
|
ARRAY_SIZE(sffsdr_snd_resources));
|
||||||
|
if (ret) {
|
||||||
|
printk(KERN_ERR "platform device add ressources failed\n");
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = platform_device_add(sffsdr_snd_device);
|
||||||
|
if (ret)
|
||||||
|
goto error;
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
error:
|
||||||
|
platform_device_put(sffsdr_snd_device);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void __exit sffsdr_exit(void)
|
||||||
|
{
|
||||||
|
platform_device_unregister(sffsdr_snd_device);
|
||||||
|
}
|
||||||
|
|
||||||
|
module_init(sffsdr_init);
|
||||||
|
module_exit(sffsdr_exit);
|
||||||
|
|
||||||
|
MODULE_AUTHOR("Hugo Villeneuve");
|
||||||
|
MODULE_DESCRIPTION("Lyrtech SFFSDR ASoC driver");
|
||||||
|
MODULE_LICENSE("GPL");
|
Loading…
Reference in a new issue