diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/imx/Kconfig | 9 | ||||
| -rw-r--r-- | sound/soc/imx/Makefile | 3 | ||||
| -rw-r--r-- | sound/soc/imx/imx-ccwmx51js-wm8753.c | 342 |
3 files changed, 353 insertions, 1 deletions
diff --git a/sound/soc/imx/Kconfig b/sound/soc/imx/Kconfig index c81f943a2e10..ddecb6ad62fe 100644 --- a/sound/soc/imx/Kconfig +++ b/sound/soc/imx/Kconfig @@ -37,6 +37,15 @@ config SND_SOC_IMX_3STACK_SGTL5000 Say Y if you want to add support for SoC audio on IMX 3STACK with the SGTL5000. + +config SND_SOC_IMX_CCWMX51JS + tristate "SoC Audio support for Digi CCWMX51JS" + select SND_MXC_SOC_SSI + select SND_SOC_WM8753 + help + Say Y if you want to add support for SoC audio on Digi + CCWMX51JS with the WM8753 codec. + config SND_SOC_IMX_3STACK_AK4647 tristate "SoC Audio support for IMX - AK4647" select SND_MXC_SOC_SSI diff --git a/sound/soc/imx/Makefile b/sound/soc/imx/Makefile index 0460f965a85b..57c645ae7c44 100644 --- a/sound/soc/imx/Makefile +++ b/sound/soc/imx/Makefile @@ -20,4 +20,5 @@ snd-soc-imx-3stack-ak5702-objs := imx-3stack-ak5702.o obj-$(CONFIG_SND_SOC_IMX_3STACK_AK5702) += snd-soc-imx-3stack-ak5702.o snd-soc-imx-3stack-bt-objs := imx-3stack-bt.o obj-$(CONFIG_SND_SOC_IMX_3STACK_BLUETOOTH) += snd-soc-imx-3stack-bt.o - +snd-soc-imx-ccwmx51js-wm8753-objs := imx-ccwmx51js-wm8753.o +obj-$(CONFIG_SND_SOC_IMX_CCWMX51JS) += snd-soc-imx-ccwmx51js-wm8753.o diff --git a/sound/soc/imx/imx-ccwmx51js-wm8753.c b/sound/soc/imx/imx-ccwmx51js-wm8753.c new file mode 100644 index 000000000000..c9c4d425143f --- /dev/null +++ b/sound/soc/imx/imx-ccwmx51js-wm8753.c @@ -0,0 +1,342 @@ +/* + * imx-ccwmx51js-wm8753.c -- i.MX Driver for Digi CCWMS51JS and the Wolfson WM8753 Codec + * + * Adapted by Timesys from sgtl5000 machine driver and other sources. + * + * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2010 Timesys Corpotation. All Rights Reserved. + * + * 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. + * + * Based on sound/soc/imx/imx-3stack-sgtl5000.c + * + */ + +#include <linux/platform_device.h> +#include <linux/i2c.h> +#include <linux/err.h> +#include <linux/io.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> + +#include <mach/dma.h> +#include <mach/spba.h> +#include <mach/clock.h> +#include <mach/mxc.h> +#include "../codecs/wm8753.h" +#include "imx-ssi.h" +#include "imx-pcm.h" + + +/* SSI BCLK and LRC master + * + * Set WM8753_SSI_MASTER to operate the WM8753 codec in master mode, + * and set to zero to operate it in slave mode. + */ +#define WM8753_SSI_MASTER 1 + + +struct ccwmx51_priv { + int sysclk; + struct platform_device *pdev; +}; + +static struct ccwmx51_priv machine_priv; + +static struct snd_soc_dai ccwmx51_cpu_dai; + + +static int ccwmx51js_audio_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_link *machine = rtd->dai; + struct snd_soc_dai *cpu_dai = machine->cpu_dai; + struct snd_soc_dai *codec_dai = machine->codec_dai; + struct ccwmx51_priv *priv = &machine_priv; + int ret = 0; + + unsigned int channels = params_channels(params); + u32 dai_format; + + +#if WM8753_SSI_MASTER + dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_SYNC; + if (channels == 2) + dai_format |= SND_SOC_DAIFMT_TDM; + + /* set codec DAI configuration */ + ret = snd_soc_dai_set_fmt(codec_dai, dai_format); + if (ret < 0) + return ret; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_fmt(cpu_dai, dai_format); + + if (ret < 0) + return ret; +#else + dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS | SND_SOC_DAIFMT_SYNC; + if (channels == 2) + dai_format |= SND_SOC_DAIFMT_TDM; + + /* set codec DAI configuration */ + ret = snd_soc_dai_set_fmt(codec_dai, dai_format); + if (ret < 0) + return ret; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_fmt(cpu_dai, dai_format); + + if (ret < 0) + return ret; +#endif + + snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, priv->sysclk, 0); + + /* set i.MX active slot mask */ + snd_soc_dai_set_tdm_slot(cpu_dai, + channels == 1 ? 0xfffffffe : 0xfffffffc, 2); + + /* set the SSI system clock as input (unused) */ + snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0, SND_SOC_CLOCK_IN); + + + /* The WM8753 PLL on the Digi CCWMX51JS is referenced to a fixed 13-MHz + * oscillator. We presently operate the PLL only at 11.289600 + * MHz output, which supports a 44.1-kHz sample rate and a few others. + * + */ + + // set codec BCLK division for sample rate */ + ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, WM8753_BCLK_DIV_4); + if (ret < 0) + return ret; + + // Specify input PLL frequency and desired output frequency. + ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 13000000, 11289600); + if (ret < 0) + return ret; + return 0; +} + + + + // Sets up the i.mx51 Digital Audio Multiplexer +static void ccwmx51_init_dam(int ssi_port, int dai_port) +{ + unsigned int ssi_ptcr = 0; + unsigned int dai_ptcr = 0; + unsigned int ssi_pdcr = 0; + unsigned int dai_pdcr = 0; + /* i.mx51 uses SSI1 or SSI2 via AUDMUX port dai_port for audio */ + + /* reset port ssi_port & dai_port */ + __raw_writel(0, DAM_PTCR(ssi_port)); + __raw_writel(0, DAM_PTCR(dai_port)); + __raw_writel(0, DAM_PDCR(ssi_port)); + __raw_writel(0, DAM_PDCR(dai_port)); + + /* set to synchronous */ + ssi_ptcr |= AUDMUX_PTCR_SYN; + dai_ptcr |= AUDMUX_PTCR_SYN; + +#if WM8753_SSI_MASTER + /* set Rx sources ssi_port <--> dai_port */ + ssi_pdcr |= AUDMUX_PDCR_RXDSEL(dai_port); + dai_pdcr |= AUDMUX_PDCR_RXDSEL(ssi_port); + + /* set Tx frame direction and source dai_port--> ssi_port output */ + ssi_ptcr |= AUDMUX_PTCR_TFSDIR; + ssi_ptcr |= AUDMUX_PTCR_TFSSEL(AUDMUX_FROM_TXFS, dai_port); + + /* set Tx Clock direction and source dai_port--> ssi_port output */ + ssi_ptcr |= AUDMUX_PTCR_TCLKDIR; + ssi_ptcr |= AUDMUX_PTCR_TCSEL(AUDMUX_FROM_TXFS, dai_port); +#else + /* set Rx sources ssi_port <--> dai_port */ + ssi_pdcr |= AUDMUX_PDCR_RXDSEL(dai_port); + dai_pdcr |= AUDMUX_PDCR_RXDSEL(ssi_port); + + /* set Tx frame direction and source ssi_port --> dai_port output */ + dai_ptcr |= AUDMUX_PTCR_TFSDIR; + dai_ptcr |= AUDMUX_PTCR_TFSSEL(AUDMUX_FROM_TXFS, ssi_port); + + /* set Tx Clock direction and source ssi_port--> dai_port output */ + dai_ptcr |= AUDMUX_PTCR_TCLKDIR; + dai_ptcr |= AUDMUX_PTCR_TCSEL(AUDMUX_FROM_TXFS, ssi_port); +#endif + + __raw_writel(ssi_ptcr, DAM_PTCR(ssi_port)); + __raw_writel(dai_ptcr, DAM_PTCR(dai_port)); + __raw_writel(ssi_pdcr, DAM_PDCR(ssi_port)); + __raw_writel(dai_pdcr, DAM_PDCR(dai_port)); +} + + + +/* + * Still to do: set the line out to become enabled within + * this driver. Currently the initial driver configuration + * has all outputs disabled. They can be enabled in user space + * by doing: + * + * amixer sset 'Left Mixer Left' unmute + * amixer sset 'Right Mixer Right Playback Swit' unmute + * + */ +static int ccwmx51js_startup(struct snd_pcm_substream *substream) +{ + return 0; +} + +static void ccwmx51js_shutdown(struct snd_pcm_substream *substream) +{ +} + +static struct snd_soc_ops ccwmx51js_ops = { + .startup = ccwmx51js_startup, + .shutdown = ccwmx51js_shutdown, + .hw_params = ccwmx51js_audio_hw_params, +}; + + + // Logic for wm8753 as connected on Digi CCWMX51JS board. +static int ccwmx51js_wm8753_init(struct snd_soc_codec *codec) +{ + return 0; +} + + +/* digital audio interface glue - connects codec <--> CPU */ +static struct snd_soc_dai_link ccwmx51js_dai = { + .name = "CCWMX51JS WM8753", + + .stream_name = "WM8753 HiFi", + .cpu_dai = &ccwmx51_cpu_dai, + .codec_dai = &wm8753_dai[WM8753_DAI_HIFI], + .init = ccwmx51js_wm8753_init, + .ops = &ccwmx51js_ops, +}; + +static int ccwmx51js_machine_remove(struct platform_device *pdev) +{ + struct ccwmx51_priv *priv = &machine_priv; + struct mxc_audio_platform_data *plat; + + if (priv->pdev) { + plat = priv->pdev->dev.platform_data; + if (plat->finit) + plat->finit(); + } + + return 0; +} + +/* audio machine driver */ +static struct snd_soc_machine snd_soc_machine_ccwmx51js = { + .name = "imx-ccwmx51js", + .dai_link = &ccwmx51js_dai, + .num_links = 1, + .remove = ccwmx51js_machine_remove, +}; + +static struct wm8753_setup_data ccwmx51_wm8753_setup = { + .i2c_address = 0x1a, + .i2c_bus = 1, +}; + +static struct snd_soc_device ccwmx51js_snd_devdata = { + .machine = &snd_soc_machine_ccwmx51js, + .platform = &imx_soc_platform, + .codec_dev = &soc_codec_dev_wm8753, + .codec_data = &ccwmx51_wm8753_setup, +}; + +static int __devinit ccwmx51js_wm8753_probe(struct platform_device *pdev) +{ + struct mxc_audio_platform_data *plat = pdev->dev.platform_data; + struct ccwmx51_priv *priv = &machine_priv; + int ret = 0; + + priv->sysclk = plat->sysclk; + priv->pdev = pdev; + + imx_ssi_dai_init(&ccwmx51_cpu_dai); + ccwmx51_cpu_dai.private_data = plat; + + ccwmx51_init_dam(plat->src_port, plat->ext_port); + + if (plat->src_port == 2) + ccwmx51_cpu_dai.name = "imx-ssi-3"; + else + ccwmx51_cpu_dai.name = "imx-ssi-1"; + + ret = -EINVAL; + if (plat->init && plat->init()){ + goto err_plat_init; + } + return 0; + +err_plat_init: + return ret; +} + +static int ccwmx51js_wm8753_remove(struct platform_device *pdev) +{ + return 0; +} + +static struct platform_driver ccwmx51js_wm8753_audio_driver = { + .probe = ccwmx51js_wm8753_probe, + .remove = ccwmx51js_wm8753_remove, + .driver = { + .name = "imx-ccwmx51js-wm8753", + }, +}; + +static struct platform_device *ccwmx51js_snd_device; + +static int __init ccwmx51js_init(void) +{ + int ret; + + ret = platform_driver_register(&ccwmx51js_wm8753_audio_driver); + if (ret) + return -ENOMEM; + + ccwmx51js_snd_device = platform_device_alloc("soc-audio", -1); + if (!ccwmx51js_snd_device) + return -ENOMEM; + + platform_set_drvdata(ccwmx51js_snd_device, &ccwmx51js_snd_devdata); + ccwmx51js_snd_devdata.dev = &ccwmx51js_snd_device->dev; + ret = platform_device_add(ccwmx51js_snd_device); + + if (ret) + platform_device_put(ccwmx51js_snd_device); + + return ret; +} + +static void __exit ccwmx51js_exit(void) +{ + platform_driver_unregister(&ccwmx51js_wm8753_audio_driver); + platform_device_unregister(ccwmx51js_snd_device); +} + +module_init(ccwmx51js_init); +module_exit(ccwmx51js_exit); + +MODULE_AUTHOR("Timesys"); +MODULE_DESCRIPTION("WM8753 Driver for Digi CCWMX51JS"); +MODULE_LICENSE("GPL"); |