[alsa-devel] [RFC 3/4] ASoC: Intel: add the low level dsp driver for mrfld

[Liam Girdwood]

On Mon, 2014-05-05 at 23:31 +0530, Vinod Koul wrote:
> This driver provides low level functions like sending and receiving IPCs, managing
> power for DSP etc
> 
> Signed-off-by: Vinod Koul <vinod.koul at intel.com>
> ---
>  sound/soc/intel/sst/Makefile            |    5 +
>  sound/soc/intel/sst/sst.c               |  631 ++++++++++++++++++++
>  sound/soc/intel/sst/sst.h               |  686 ++++++++++++++++++++++
>  sound/soc/intel/sst/sst_drv_interface.c |  812 ++++++++++++++++++++++++++
>  sound/soc/intel/sst/sst_ipc.c           |  388 +++++++++++++
>  sound/soc/intel/sst/sst_loader.c        |  947 +++++++++++++++++++++++++++++++
>  sound/soc/intel/sst/sst_pvt.c           |  203 +++++++
>  sound/soc/intel/sst/sst_stream.c        |  529 +++++++++++++++++

We should rename the sst directory to avoid confusion with other sst
drivers.

>  8 files changed, 4201 insertions(+), 0 deletions(-)
>  create mode 100644 sound/soc/intel/sst/Makefile
>  create mode 100644 sound/soc/intel/sst/sst.c
>  create mode 100644 sound/soc/intel/sst/sst.h
>  create mode 100644 sound/soc/intel/sst/sst_drv_interface.c
>  create mode 100644 sound/soc/intel/sst/sst_ipc.c
>  create mode 100644 sound/soc/intel/sst/sst_loader.c
>  create mode 100644 sound/soc/intel/sst/sst_pvt.c
>  create mode 100644 sound/soc/intel/sst/sst_stream.c
> 
> diff --git a/sound/soc/intel/sst/Makefile b/sound/soc/intel/sst/Makefile
> new file mode 100644
> index 0000000..d5bf4e8
> --- /dev/null
> +++ b/sound/soc/intel/sst/Makefile
> @@ -0,0 +1,5 @@
> +snd-intel-sst-objs := sst.o sst_ipc.o sst_stream.o sst_drv_interface.o sst_loader.o sst_pvt.o
> +
> +obj-$(CONFIG_SND_INTEL_SST) += snd-intel-sst.o
> +
> +CFLAGS_snd-intel-sst.o = -I$(src)
> diff --git a/sound/soc/intel/sst/sst.c b/sound/soc/intel/sst/sst.c
> new file mode 100644
> index 0000000..116522b
> --- /dev/null
> +++ b/sound/soc/intel/sst/sst.c
> @@ -0,0 +1,631 @@
> +/*
> + *  sst.c - Intel SST Driver for audio engine
> + *
> + *  Copyright (C) 2008-14	Intel Corp
> + *  Authors:	Vinod Koul <vinod.koul at intel.com>
> + *		Harsha Priya <priya.harsha at intel.com>
> + *		Dharageswari R <dharageswari.r at intel.com>
> + *		KP Jeeja <jeeja.kp 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/module.h>
> +#include <linux/pci.h>
> +#include <linux/fs.h>
> +#include <linux/interrupt.h>
> +#include <linux/firmware.h>
> +#include <linux/miscdevice.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/pm_qos.h>
> +#include <linux/async.h>
> +#include <linux/delay.h>
> +#include <linux/acpi.h>
> +#include <asm/intel-mid.h>
> +#include <asm/platform_sst_audio.h>
> +#include <asm/platform_sst.h>
> +#include "../sst_platform.h"
> +#include "../platform_ipc_v2.h"
> +#include "sst.h"
> +
> +MODULE_AUTHOR("Vinod Koul <vinod.koul at intel.com>");
> +MODULE_AUTHOR("Harsha Priya <priya.harsha at intel.com>");
> +MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine Driver");
> +MODULE_LICENSE("GPL v2");
> +MODULE_VERSION(SST_DRIVER_VERSION);
> +
> +struct intel_sst_drv *sst_drv_ctx;

static ?

> +static struct mutex drv_ctx_lock;
> +


> +
> +static int sst_save_dsp_context_v2(struct intel_sst_drv *sst)

Is there a V1 somewhere ?


> +static int intel_sst_suspend(struct device *dev)
> +{
> +

extra line ? Spotted this in a few places too.

Probably best to split this into several patches to make review easier.

Liam

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