path: root/drivers/media/platform/ti-vpe/vpdma.c

/*
 * VPDMA helper library
 *
 * Copyright (c) 2013 Texas Instruments Inc.
 *
 * David Griego, <dagriego@biglakesoftware.com>
 * Dale Farnsworth, <dale@farnsworth.org>
 * Archit Taneja, <archit@ti.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/delay.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/firmware.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/videodev2.h>

#include "vpdma.h"
#include "vpdma_priv.h"

#define VPDMA_FIRMWARE	"vpdma-1b8.bin"

const struct vpdma_data_format vpdma_yuv_fmts[] = {
	[VPDMA_DATA_FMT_Y444] = {
		.data_type	= DATA_TYPE_Y444,
		.depth		= 8,
	},
	[VPDMA_DATA_FMT_Y422] = {
		.data_type	= DATA_TYPE_Y422,
		.depth		= 8,
	},
	[VPDMA_DATA_FMT_Y420] = {
		.data_type	= DATA_TYPE_Y420,
		.depth		= 8,
	},
	[VPDMA_DATA_FMT_C444] = {
		.data_type	= DATA_TYPE_C444,
		.depth		= 8,
	},
	[VPDMA_DATA_FMT_C422] = {
		.data_type	= DATA_TYPE_C422,
		.depth		= 8,
	},
	[VPDMA_DATA_FMT_C420] = {
		.data_type	= DATA_TYPE_C420,
		.depth		= 4,
	},
	[VPDMA_DATA_FMT_YC422] = {
		.data_type	= DATA_TYPE_YC422,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_YC444] = {
		.data_type	= DATA_TYPE_YC444,
		.depth		= 24,
	},
	[VPDMA_DATA_FMT_CY422] = {
		.data_type	= DATA_TYPE_CY422,
		.depth		= 16,
	},
};

const struct vpdma_data_format vpdma_rgb_fmts[] = {
	[VPDMA_DATA_FMT_RGB565] = {
		.data_type	= DATA_TYPE_RGB16_565,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_ARGB16_1555] = {
		.data_type	= DATA_TYPE_ARGB_1555,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_ARGB16] = {
		.data_type	= DATA_TYPE_ARGB_4444,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_RGBA16_5551] = {
		.data_type	= DATA_TYPE_RGBA_5551,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_RGBA16] = {
		.data_type	= DATA_TYPE_RGBA_4444,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_ARGB24] = {
		.data_type	= DATA_TYPE_ARGB24_6666,
		.depth		= 24,
	},
	[VPDMA_DATA_FMT_RGB24] = {
		.data_type	= DATA_TYPE_RGB24_888,
		.depth		= 24,
	},
	[VPDMA_DATA_FMT_ARGB32] = {
		.data_type	= DATA_TYPE_ARGB32_8888,
		.depth		= 32,
	},
	[VPDMA_DATA_FMT_RGBA24] = {
		.data_type	= DATA_TYPE_RGBA24_6666,
		.depth		= 24,
	},
	[VPDMA_DATA_FMT_RGBA32] = {
		.data_type	= DATA_TYPE_RGBA32_8888,
		.depth		= 32,
	},
	[VPDMA_DATA_FMT_BGR565] = {
		.data_type	= DATA_TYPE_BGR16_565,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_ABGR16_1555] = {
		.data_type	= DATA_TYPE_ABGR_1555,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_ABGR16] = {
		.data_type	= DATA_TYPE_ABGR_4444,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_BGRA16_5551] = {
		.data_type	= DATA_TYPE_BGRA_5551,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_BGRA16] = {
		.data_type	= DATA_TYPE_BGRA_4444,
		.depth		= 16,
	},
	[VPDMA_DATA_FMT_ABGR24] = {
		.data_type	= DATA_TYPE_ABGR24_6666,
		.depth		= 24,
	},
	[VPDMA_DATA_FMT_BGR24] = {
		.data_type	= DATA_TYPE_BGR24_888,
		.depth		= 24,
	},
	[VPDMA_DATA_FMT_ABGR32] = {
		.data_type	= DATA_TYPE_ABGR32_8888,
		.depth		= 32,
	},
	[VPDMA_DATA_FMT_BGRA24] = {
		.data_type	= DATA_TYPE_BGRA24_6666,
		.depth		= 24,
	},
	[VPDMA_DATA_FMT_BGRA32] = {
		.data_type	= DATA_TYPE_BGRA32_8888,
		.depth		= 32,
	},
};

const struct vpdma_data_format vpdma_misc_fmts[] = {
	[VPDMA_DATA_FMT_MV] = {
		.data_type	= DATA_TYPE_MV,
		.depth		= 4,
	},
};

struct vpdma_channel_info {
	int num;		/* VPDMA channel number */
	int cstat_offset;	/* client CSTAT register offset */
};

static const struct vpdma_channel_info chan_info[] = {
	[VPE_CHAN_LUMA1_IN] = {
		.num		= VPE_CHAN_NUM_LUMA1_IN,
		.cstat_offset	= VPDMA_DEI_LUMA1_CSTAT,
	},
	[VPE_CHAN_CHROMA1_IN] = {
		.num		= VPE_CHAN_NUM_CHROMA1_IN,
		.cstat_offset	= VPDMA_DEI_CHROMA1_CSTAT,
	},
	[VPE_CHAN_LUMA2_IN] = {
		.num		= VPE_CHAN_NUM_LUMA2_IN,
		.cstat_offset	= VPDMA_DEI_LUMA2_CSTAT,
	},
	[VPE_CHAN_CHROMA2_IN] = {
		.num		= VPE_CHAN_NUM_CHROMA2_IN,
		.cstat_offset	= VPDMA_DEI_CHROMA2_CSTAT,
	},
	[VPE_CHAN_LUMA3_IN] = {
		.num		= VPE_CHAN_NUM_LUMA3_IN,
		.cstat_offset	= VPDMA_DEI_LUMA3_CSTAT,
	},
	[VPE_CHAN_CHROMA3_IN] = {
		.num		= VPE_CHAN_NUM_CHROMA3_IN,
		.cstat_offset	= VPDMA_DEI_CHROMA3_CSTAT,
	},