> -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Wednesday, October 13, 2010 4:21 PM > To: [email protected] > Cc: [email protected]; Sanjay Kumar Champati > Subject: [WL1271 DC supprot on OMAP3EVM 4/5] ARM: Added ALSA > audio support for WL1271 DC over the PCM interface (OMAP37XX) [sp] There is no OMAP37xx. It is AM37xx.
> > From: Sanjay Kumar Champati <[email protected]> > > * Add "wl1271bt.c" & "wl1271bt.h" in the PS kernel to support > PCM interface for OMAP37XX > * Modified "Makefile" file to compile "wl1271bt.c" & > "wl1271bt.h" files > * Modified "omap3evm.c" file to support Audio codec for WL1271 DC > > Signed-off-by: Sanjay Kumar Champati <[email protected]> > --- > sound/soc/omap/Kconfig | 6 +++ > sound/soc/omap/Makefile | 2 + > sound/soc/omap/omap3evm.c | 81 > +++++++++++++++++++++++++++++++++++++++++++- > sound/soc/omap/wl1271bt.c | 59 ++++++++++++++++++++++++++++++++ > sound/soc/omap/wl1271bt.h | 16 +++++++++ > 5 files changed, 162 insertions(+), 2 deletions(-) > create mode 100644 sound/soc/omap/wl1271bt.c > create mode 100644 sound/soc/omap/wl1271bt.h > > diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig > index 61952aa..68054c2 100644 > --- a/sound/soc/omap/Kconfig > +++ b/sound/soc/omap/Kconfig > @@ -116,3 +116,9 @@ config SND_OMAP_SOC_IGEP0020 > select SND_SOC_TWL4030 > help > Say Y if you want to add support for Soc audio on > IGEP v2 board. > + > +config SND_OMAP_SOC_WL1271BT > + tristate "WL1271 Bluetooth Codec support" > + default n > + help > + Say Y if you want to add support for WL1271 on OMAP3EVM board. > diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile > index 19283e5..684b8f2 100644 > --- a/sound/soc/omap/Makefile > +++ b/sound/soc/omap/Makefile > @@ -18,6 +18,7 @@ snd-soc-omap3pandora-objs := omap3pandora.o > snd-soc-omap3beagle-objs := omap3beagle.o > snd-soc-zoom2-objs := zoom2.o > snd-soc-igep0020-objs := igep0020.o > +snd-soc-wl1271bt-objs := wl1271bt.o > > obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o > obj-$(CONFIG_SND_OMAP_SOC_AMS_DELTA) += snd-soc-ams-delta.o > @@ -31,3 +32,4 @@ obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += > snd-soc-omap3pandora.o > obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-omap3beagle.o > obj-$(CONFIG_SND_OMAP_SOC_ZOOM2) += snd-soc-zoom2.o > obj-$(CONFIG_SND_OMAP_SOC_IGEP0020) += snd-soc-igep0020.o > +obj-$(CONFIG_SND_OMAP_SOC_WL1271BT) += snd-soc-wl1271bt.o > diff --git a/sound/soc/omap/omap3evm.c b/sound/soc/omap/omap3evm.c > index dfcb344..6731ad3 100644 > --- a/sound/soc/omap/omap3evm.c > +++ b/sound/soc/omap/omap3evm.c > @@ -32,6 +32,10 @@ > #include "omap-mcbsp.h" > #include "omap-pcm.h" > #include "../codecs/twl4030.h" > +#if defined(CONFIG_SND_OMAP_SOC_WL1271BT) > +#include <plat/control.h> > +#include "wl1271bt.h" > +#endif > > static int omap3evm_hw_params(struct snd_pcm_substream *substream, > struct snd_pcm_hw_params *params) > @@ -72,11 +76,58 @@ static int omap3evm_hw_params(struct > snd_pcm_substream *substream, > return 0; > } > > +#if defined(CONFIG_SND_OMAP_SOC_WL1271BT) > +static int omap3evm_wl1271bt_pcm_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 ret; > + > + /* Set cpu DAI configuration for WL1271 Bluetooth codec */ > + ret = snd_soc_dai_set_fmt(cpu_dai, > + SND_SOC_DAIFMT_DSP_B | > + SND_SOC_DAIFMT_NB_NF | > + SND_SOC_DAIFMT_CBM_CFM); > + if (ret < 0) { > + printk(KERN_ERR "Can't set cpu DAI configuration for " \ > + "WL1271 > Bluetooth codec \n"); > + return ret; > + } > + > + return 0; > +} > + > +static struct snd_soc_ops omap3evm_wl1271bt_pcm_ops = { > + .hw_params = omap3evm_wl1271bt_pcm_hw_params, > +}; > +#endif > + > static struct snd_soc_ops omap3evm_ops = { > + > .hw_params = omap3evm_hw_params, > }; > > /* Digital audio interface glue - connects codec <--> CPU */ > +#if defined(CONFIG_SND_OMAP_SOC_WL1271BT) > +static struct snd_soc_dai_link omap3evm_dai[] = { > + { > + .name = "TWL4030", > + .stream_name = "TWL4030", > + .cpu_dai = &omap_mcbsp_dai[0], > + .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI], > + .ops = &omap3evm_ops, > + }, > + /* Connects WL1271 Bluetooth codec <--> CPU */ > + { > + .name = "WL1271BTPCM", > + .stream_name = "WL1271 BT PCM", > + .cpu_dai = &omap_mcbsp_dai[1], > + .codec_dai = &wl1271bt_dai, > + .ops = &omap3evm_wl1271bt_pcm_ops, > + }, > +}; > +#else > static struct snd_soc_dai_link omap3evm_dai = { > .name = "TWL4030", > .stream_name = "TWL4030", > @@ -84,13 +135,18 @@ static struct snd_soc_dai_link omap3evm_dai = { > .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI], > .ops = &omap3evm_ops, > }; > - > +#endif > /* Audio machine driver */ > static struct snd_soc_card snd_soc_omap3evm = { > .name = "omap3evm", > .platform = &omap_soc_platform, > +#if defined(CONFIG_SND_OMAP_SOC_WL1271BT) > + .dai_link = &omap3evm_dai[0], > + .num_links = ARRAY_SIZE(omap3evm_dai), > +#else > .dai_link = &omap3evm_dai, > .num_links = 1, > +#endif > }; > > /* twl4030 setup */ > @@ -111,7 +167,10 @@ static struct platform_device > *omap3evm_snd_device; > static int __init omap3evm_soc_init(void) > { > int ret; > - > +#if defined(CONFIG_SND_OMAP_SOC_WL1271BT) > + u16 reg; > + u32 val; > +#endif > if (!machine_is_omap3evm()) { > pr_err("Not OMAP3 EVM!\n"); > return -ENODEV; > @@ -124,9 +183,27 @@ static int __init omap3evm_soc_init(void) > return -ENOMEM; > } > > +#if defined(CONFIG_SND_OMAP_SOC_WL1271BT) > +/* > + * Set DEVCONF0 register to connect > + * MCBSP1_CLKR -> MCBSP1_CLKX & MCBSP1_FSR -> MCBSP1_FSX > + */ > + reg = OMAP2_CONTROL_DEVCONF0; > + val = omap_ctrl_readl(reg); > + val = val | 0x18; > + omap_ctrl_writel(val, reg); > +#endif [sp] I am not conversant with McBSP configuration, but isn't there a better way than directly manipulating on DEVCONF0? How is it done for other devices using McBSP? e.g. default audio on omap3evm. > + > platform_set_drvdata(omap3evm_snd_device, > &omap3evm_snd_devdata); > omap3evm_snd_devdata.dev = &omap3evm_snd_device->dev; > +#if defined(CONFIG_SND_OMAP_SOC_WL1271BT) > + /* McBSP2 */ > + *(unsigned int *)omap3evm_dai[0].cpu_dai->private_data = 1; > + /* McBSP1 */ > + *(unsigned int *)omap3evm_dai[1].cpu_dai->private_data = 0; > +#else > *(unsigned int *)omap3evm_dai.cpu_dai->private_data = 1; > +#endif > > ret = platform_device_add(omap3evm_snd_device); > if (ret) > diff --git a/sound/soc/omap/wl1271bt.c b/sound/soc/omap/wl1271bt.c > new file mode 100644 > index 0000000..b41895b > --- /dev/null > +++ b/sound/soc/omap/wl1271bt.c > @@ -0,0 +1,59 @@ > +/* > + * wl1271bt.c -- ALSA SoC WL1271 Bluetooth codec driver > for omap3evm board > + * > + * Author: Sinoj M. Issac, <sinoj at mistralsolutions.com> > + * > + * Based on sound/soc/codecs/twl4030.c by Steve Sakoman > + * > + * This file provides stub codec that can be used on OMAP3530 evm to > + * send/receive voice samples to/from WL1271 Bluetooth chip > over PCM interface. > + * The Bluetoothchip codec interface is configured by HCI > commands. ALSA is > + * configured and aligned to the codec interface. > + * > + * 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 <sound/soc.h> > +#include <sound/pcm.h> > + > +/* > + * Since WL1271 PCM interface is intended for Voice, > + * Support sampling rate 8K only > + */ > +#define WL1271BT_RATES SNDRV_PCM_RATE_8000 > +#define WL1271BT_FORMATS SNDRV_PCM_FMTBIT_S16_LE > + > +struct snd_soc_dai wl1271bt_dai = { > + .name = "wl1271bt", > + .playback = { > + .stream_name = "Playback", > + .channels_min = 1, > + .channels_max = 2, > + .rates = WL1271BT_RATES, > + .formats = WL1271BT_FORMATS,}, > + .capture = { > + .stream_name = "Capture", > + .channels_min = 1, > + .channels_max = 2, > + .rates = WL1271BT_RATES, > + .formats = WL1271BT_FORMATS,}, > +}; > + > +static int __init wl1271bt_modinit(void) > +{ > + /* Register number of DAIs (wl1271bt_dai) with the ASoC core */ > + return snd_soc_register_dais(&wl1271bt_dai, 1); > +} > + > +static void __exit wl1271bt_modexit(void) > +{ > + /* Unregister number of DAIs (wl1271bt_dai) from the > ASoC core */ > + snd_soc_unregister_dais(&wl1271bt_dai, 1); > +} > + > +module_init(wl1271bt_modinit); > +module_exit(wl1271bt_modexit); > diff --git a/sound/soc/omap/wl1271bt.h b/sound/soc/omap/wl1271bt.h > new file mode 100644 > index 0000000..769f9a9 > --- /dev/null > +++ b/sound/soc/omap/wl1271bt.h > @@ -0,0 +1,16 @@ > +/* > + * wl1271bt.h -- ALSA SoC WL1271 Bluetooth codec driver header > + * > + * Author: Sinoj M. Issac, <sinoj at 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. > + */ > + > +#ifndef WL1271BT_H > +#define WL1271BT_H > + > +extern struct snd_soc_dai wl1271bt_dai; > + > +#endif /* WL1271BT_H */ > -- > 1.6.3.3 > > -- > To unsubscribe from this list: send the line "unsubscribe > linux-omap" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
