[alsa-devel] [v3 05/13] ASoC: Intel: add mrfld DSP defines

[Takashi Iwai]

At Wed, 30 Jul 2014 18:32:22 +0530,
Subhransu S. Prusty wrote:
> 
> From: Vinod Koul <vinod.koul at intel.com>
> 
> We define the DSP commands,structures here which will be used to send the IPCs
> 
> Signed-off-by: Vinod Koul <vinod.koul at intel.com>
> Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
> ---
>  sound/soc/intel/Makefile                |   3 +-
>  sound/soc/intel/sst-atom-controls.c     |  41 +++++
>  sound/soc/intel/sst-atom-controls.h     | 286 +++++++++++++++++++++++++++++++-
>  sound/soc/intel/sst-mfld-platform-pcm.c |   8 +-
>  sound/soc/intel/sst-mfld-platform.h     |   3 +
>  5 files changed, 337 insertions(+), 4 deletions(-)
>  create mode 100644 sound/soc/intel/sst-atom-controls.c
> 
> diff --git a/sound/soc/intel/Makefile b/sound/soc/intel/Makefile
> index 7acbfc43a0c6..f841786dad15 100644
> --- a/sound/soc/intel/Makefile
> +++ b/sound/soc/intel/Makefile
> @@ -2,7 +2,8 @@
>  snd-soc-sst-dsp-objs := sst-dsp.o sst-firmware.o
>  snd-soc-sst-acpi-objs := sst-acpi.o
>  
> -snd-soc-sst-mfld-platform-objs := sst-mfld-platform-pcm.o sst-mfld-platform-compress.o
> +snd-soc-sst-mfld-platform-objs := sst-mfld-platform-pcm.o \
> +	sst-mfld-platform-compress.o sst-atom-controls.o
>  snd-soc-mfld-machine-objs := mfld_machine.o
>  
>  obj-$(CONFIG_SND_SST_MFLD_PLATFORM) += snd-soc-sst-mfld-platform.o
> diff --git a/sound/soc/intel/sst-atom-controls.c b/sound/soc/intel/sst-atom-controls.c
> new file mode 100644
> index 000000000000..38731e3e5e95
> --- /dev/null
> +++ b/sound/soc/intel/sst-atom-controls.c
> @@ -0,0 +1,41 @@
> +/*
> + *  sst-atom-controls.c - Intel MID Platform driver DPCM ALSA controls for Mrfld
> + *
> + *  Copyright (C) 2013-14 Intel Corp
> + *  Author: Omair Mohammed Abdullah <omair.m.abdullah at intel.com>
> + *	Vinod Koul <vinod.koul at intel.com>
> + *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> + *
> + *  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; version 2 of the License.
> + *
> + *  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.
> + *
> + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> + */
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
> +#include <linux/slab.h>
> +#include <sound/soc.h>
> +#include <sound/tlv.h>
> +#include "sst-mfld-platform.h"
> +#include "sst-atom-controls.h"
> +
> +int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform)
> +{
> +	int ret = 0;
> +	struct sst_data *drv = snd_soc_platform_get_drvdata(platform);
> +
> +	drv->byte_stream = devm_kzalloc(platform->dev,
> +					SST_MAX_BIN_BYTES, GFP_KERNEL);
> +	if (!drv->byte_stream) {
> +		pr_err("%s: kzalloc failed\n", __func__);

The error message for k*alloc() is often superfluous, as the memory
allocator itself gives the error message.


Takashi