/*
 * Copyright (C) STMicroelectronics SA 2014
 * Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.
 * License terms:  GNU General Public License (GPL), version 2
 */

#define BDISP_HF_NB             64
#define BDISP_VF_NB             40

/**
 * struct bdisp_filter_h_spec - Horizontal filter specification
 *
 * @min:        min scale factor for this filter (6.10 fixed point)
 * @max:        max scale factor for this filter (6.10 fixed point)
 * coef:        filter coefficients
 */
struct bdisp_filter_h_spec {
	const u16 min;
	const u16 max;
	const u8 coef[BDISP_HF_NB];
};

static const struct bdisp_filter_h_spec bdisp_h_spec[] = {
	{
		.min = 0,
		.max = 921,
		.coef = {
			0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
			0x00, 0x00, 0xff, 0x07, 0x3d, 0xfc, 0x01, 0x00,
			0x00, 0x01, 0xfd, 0x11, 0x36, 0xf9, 0x02, 0x00,
			0x00, 0x01, 0xfb, 0x1b, 0x2e, 0xf9, 0x02, 0x00,
			0x00, 0x01, 0xf9, 0x26, 0x26, 0xf9, 0x01, 0x00,
			0x00, 0x02, 0xf9, 0x30, 0x19, 0xfb, 0x01, 0x00,
			0x00, 0x02, 0xf9, 0x39, 0x0e, 0xfd, 0x01, 0x00,
			0x00, 0x01, 0xfc, 0x3e, 0x06, 0xff, 0x00, 0x00
		}
	},
	{
		.min = 921,
		.max = 1024,
		.coef = {
			0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
			0xff, 0x03, 0xfd, 0x08, 0x3e, 0xf9, 0x04, 0xfe,
			0xfd, 0x06, 0xf8, 0x13, 0x3b, 0xf4, 0x07, 0xfc,
			0xfb, 0x08, 0xf5, 0x1f, 0x34, 0xf1, 0x09, 0xfb,
			0xfb, 0x09, 0xf2, 0x2b, 0x2a, 0xf1, 0x09, 0xfb,
			0xfb, 0x09, 0xf2, 0x35, 0x1e, 0xf4, 0x08, 0xfb,
			0xfc, 0x07, 0xf5, 0x3c, 0x12, 0xf7, 0x06, 0xfd,
			0xfe, 0x04, 0xfa, 0x3f, 0x07, 0xfc, 0x03, 0xff
		}
	},
	{
		.min = 1024,
		.max = 1126,
		.coef = {
			0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
			0xff, 0x03, 0xfd, 0x08, 0x3e, 0xf9, 0x04, 0xfe,
			0xfd, 0x06, 0xf8, 0x13, 0x3b, 0xf4, 0x07, 0xfc,
			0xfb, 0x08, 0xf5, 0x1f, 0x34, 0xf1, 0x09, 0xfb,
			0xfb, 0x09, 0xf2, 0x2b, 0x2a, 0xf1, 0x09, 0xfb,
			0xfb, 0x09, 0xf2, 0x35, 0x1e, 0xf4, 0x08, 0xfb,
			0xfc, 0x07, 0xf5, 0x3c, 0x12, 0xf7, 0x06, 0xfd,
			0xfe, 0x04, 0xfa, 0x3f, 0x07, 0xfc, 0x03, 0xff
		}
	},
	{
		.min = 1126,
		.max = 1228,
		.coef = {
			0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
			0xff, 0x03, 0xfd, 0x08, 0x3e, 0xf9, 0x04, 0xfe,
			0xfd, 0x06, 0xf8, 0x13, 0x3b, 0xf4, 0x07, 0xfc,
			0xfb, 0x08, 0xf5, 0x1f, 0x34, 0xf1, 0x09, 0xfb,
			0xfb, 0x09, 0xf2, 0x2b, 0x2a, 0xf1, 0x09, 0xfb,
			0xfb, 0x09, 0xf2, 0x35, 0x1e, 0xf4, 0x08, 0xfb,
			0xfc, 0x07, 0xf5, 0x3c, 0x12, 0xf7, 0x06, 0xfd,
			0xfe, 0x04, 0xfa, 0x3f, 0x07, 0xfc, 0x03, 0xff
		}
	},
	{
		.min = 1228,
		.max = 1331,
		.coef = {
			0xfd, 0x04, 0xfc, 0x05, 0x39, 0x05, 0xfc, 0x04,
			0xfc, 0x06, 0xf9, 0x0c, 0x39, 0xfe, 0x00, 0x02,
			0xfb, 0x08, 0xf6, 0x17, 0x35, 0xf9, 0x02, 0x00,
			0xfc, 0x08, 0xf4, 0x20, 0x30, 0xf4, 0x05, 0xff,
			0xfd, 0x07, 0xf4, 0x29, 0x28, 0xf3, 0x07, 0xfd,
			0xff, 0x05, 0xf5, 0x31, 0x1f, 0xf3, 0x08, 0xfc,
			0x00, 0x02, 0xf9, 0x38, 0x14, 0xf6, 0x08, 0xfb,
			0x02, 0x00, 0xff, 0x3a, 0x0b, 0xf8, 0x06, 0xfc
		}
	},
	{
		.min = 1331,
		.max = 1433,
		.coef = {
			0xfc, 0x06, 0xf9, 0x09, 0x34, 0x09, 0xf9, 0x06,
			0xfd, 0x07, 0xf7, 0x10, 0x32, 0x02, 0xfc, 0x05,
			0xfe, 0x07, 0xf6, 0x17, 0x2f, 0xfc, 0xff, 0x04,
			0xff, 0x06, 0xf5, 0x20, 0x2a, 0xf9, 0x01, 0x02,
			0x00, 0x04, 0xf6, 0x27, 0x25, 0xf6, 0x04, 0x00,
			0x02, 0x01, 0xf9, 0x2d, 0x1d, 0xf5, 0x06, 0xff,
			0x04, 0xff, 0xfd, 0x31, 0x15, 0xf5, 0x07, 0xfe,
			0x05, 0xfc, 0x02, 0x35, 0x0d, 0xf7, 0x07, 0xfd
		}
	},
	{
		.min = 1433,
		.max = 1536,
		.coef = {
			0xfe, 0x06, 0xf8, 0x0b, 0x30, 0x0b, 0xf8, 0x06,
			0xff, 0x06, 0xf7, 0x12, 0x2d, 0x05, 0xfa, 0x06,
			0x00, 0x04, 0xf6, 0x18, 0x2c, 0x00, 0xfc, 0x06,
			0x01, 0x02, 0xf7, 0x1f, 0x27, 0xfd, 0xff, 0x04,
			0x03, 0x00, 0xf9, 0x24, 0x24, 0xf9, 0x00, 0x03,
			0x04, 0xff, 0xfd, 0x29, 0x1d, 0xf7, 0x02, 0x01,
			0x06, 0xfc, 0x00, 0x2d, 0x17, 0xf6, 0x04, 0x00,
			0x06, 0xfa, 0x05, 0x30, 0x0f, 0xf7, 0x06, 0xff
		}
	},
	{
		.min = 1536,
		.max = 2048,
		.coef = {
			0x05, 0xfd, 0xfb, 0x13, 0x25, 0x13, 0xfb, 0xfd,
			0x05, 0xfc, 0xfd, 0x17, 0x24, 0x0f, 0xf9, 0xff,
			0x04, 0xfa, 0xff, 0x1b, 0x24, 0x0b, 0xf9, 0x00,
			0x03, 0xf9, 0x01, 0x1f, 0x23, 0x08, 0xf8, 0x01,
			0x02, 0xf9, 0x04, 0x22, 0x20, 0x04, 0xf9, 0x02,
			0x01, 0xf8, 0x08, 0x25, 0x1d, 0x01, 0xf9, 0x03,
			0x00, 0xf9, 0x0c, 0x25, 0x1a, 0xfe, 0xfa, 0x04,
			0xff, 0xf9, 0x10, 0x26, 0x15, 0xfc, 0xfc, 0x05
		}
	},
	{
		.min = 2048,
		.max = 3072,
		.coef = {
			0xfc, 0xfd, 0x06, 0x13, 0x18, 0x13, 0x06, 0xfd,
			0xfc, 0xfe, 0x08, 0x15, 0x17, 0x12, 0x04, 0xfc,
			0xfb, 0xfe, 0x0a, 0x16, 0x18, 0x10, 0x03, 0xfc,
			0xfb, 0x00, 0x0b, 0x18, 0x17, 0x0f, 0x01, 0xfb,
			0xfb, 0x00, 0x0d, 0x19, 0x17, 0x0d, 0x00, 0xfb,
			0xfb, 0x01, 0x0f, 0x19, 0x16, 0x0b, 0x00, 0xfb,
			0xfc, 0x03, 0x11, 0x19, 0x15, 0x09, 0xfe, 0xfb,
			0xfc, 0x04, 0x12, 0x1a, 0x12, 0x08, 0xfe, 0xfc
		}
	},
	{
		.min = 3072,
		.max = 4096,
		.coef = {
			0xfe, 0x02, 0x09, 0x0f, 0x0e, 0x0f, 0x09, 0x02,
			0xff, 0x02, 0x09, 0x0f, 0x10, 0x0e, 0x08, 0x01,
			0xff, 0x03, 0x0a, 0x10, 0x10, 0x0d, 0x07, 0x00,
			0x00, 0x04, 0x0b, 0x10, 0x0f, 0x0c, 0x06, 0x00,
			0x00, 0x05, 0x0c, 0x10, 0x0e, 0x0c, 0x05, 0x00,
			0x00, 0x06, 0x0c, 0x11, 0x0e, 0x0b, 0x04, 0x00,
			0x00, 0x07, 0x0d, 0x11, 0x0f, 0x0a, 0x03, 0xff,
			0x01, 0x08, 0x0e, 0x11, 0x0e, 0x09, 0x02, 0xff
		}
	},
	{
		.min = 4096,
		.max = 5120,
		.coef = {
			0x00, 0x04, 0x09, 0x0c, 0x0e, 0x0c, 0x09, 0x04,
			0x01, 0x05, 0x09, 0x0c, 0x0d, 0x0c, 0x08, 0x04,
			0x01, 0x05, 0x0a, 0x0c, 0x0e, 0x0b, 0x08, 0x03,
			0x02, 0x06, 0x0a, 0x0d, 0x0c, 0x0b, 0x07, 0x03,
			0x02, 0x07, 0x0a, 0x0d, 0x0d, 0x0a, 0x07, 0x02,
			0x03, 0x07, 0x0b, 0x0d, 0x0c, 0x0a, 0x06, 0x02,
			0x03, 0x08, 0x0b, 0x0d, 0x0d, 0x0a, 0x05, 0x01,
			0x04, 0x08, 0x0c, 0x0d, 0x0c, 0x09, 0x05, 0x01
		}
	},
	{
		.min = 5120,
		.max = 65535,
		.coef = {
			0x03, 0x06, 0x09, 0x0b, 0x09, 0x0b, 0x09, 0x06,
			0x03, 0x06, 0x09, 0x0b, 0x0c, 0x0a, 0x08, 0x05,
			0x03, 0x06, 0x09, 0x0b, 0x0c, 0x0a, 0x08, 0x05,
			0x04, 0x07, 0x09, 0x0b, 0x0b, 0x0a, 0x08, 0x04,
			0x04, 0x07, 0x0a, 0x0b, 0x0b, 0x0a, 0x07, 0x04,
			0x04, 0x08, 0x0a, 0x0b, 0x0b, 0x09, 0x07, 0x04,
			0x05, 0x08, 0x0a, 0x0b, 0x0c, 0x09, 0x06, 0x03,
			0x05, 0x08, 0x0a, 0x0b, 0x0c, 0x09, 0x06, 0x03
		}
	}
};

/**
 * struct bdisp_filter_v_spec - Vertical filter specification
 *
 * @min:	min scale factor for this filter (6.10 fixed point)
 * @max:	max scale factor for this filter (6.10 fixed point)
 * coef:	filter coefficients
 */
struct bdisp_filter_v_spec {
	const u16 min;
	const u16 max;
	const u8 coef[BDISP_VF_NB];
};

static const struct bdisp_filter_v_spec bdisp_v_spec[] = {
	{
		.min = 0,
		.max = 1024,
		.coef = {
			0x00, 0x00, 0x40, 0x00, 0x00,
			0x00, 0x06, 0x3d, 0xfd, 0x00,
			0xfe, 0x0f, 0x38, 0xfb, 0x00,
			0xfd, 0x19, 0x2f, 0xfb, 0x00,
			0xfc, 0x24, 0x24, 0xfc, 0x00,
			0xfb, 0x2f, 0x19, 0xfd, 0x00,
			0xfb, 0x38, 0x0f, 0xfe, 0x00,
			0xfd, 0x3d, 0x06, 0x00, 0x00
		}
	},
	{
		.min = 1024,
		.max = 1331,
		.coef = {
			0xfc, 0x05, 0x3e, 0x05, 0xfc,
			0xf8, 0x0e, 0x3b, 0xff, 0x00,
			0xf5, 0x18, 0x38, 0xf9, 0x02,
			0xf4, 0x21, 0x31, 0xf5, 0x05,
			0xf4, 0x2a, 0x27, 0xf4, 0x07,
			0xf6, 0x30, 0x1e, 0xf4, 0x08,
			0xf9, 0x35, 0x15, 0xf6, 0x07,
			0xff, 0x37, 0x0b, 0xf9, 0x06
		}
	},
	{
		.min = 1331,
		.max = 1433,
		.coef = {
			0xf8, 0x0a, 0x3c, 0x0a, 0xf8,
			0xf6, 0x12, 0x3b, 0x02, 0xfb,
			0xf4, 0x1b, 0x35, 0xfd, 0xff,
			0xf4, 0x23, 0x30, 0xf8, 0x01,
			0xf6, 0x29, 0x27, 0xf6, 0x04,
			0xf9, 0x2e, 0x1e, 0xf5, 0x06,
			0xfd, 0x31, 0x16, 0xf6, 0x06,
			0x02, 0x32, 0x0d, 0xf8, 0x07
		}
	},
	{
		.min = 1433,
		.max = 1536,
		.coef = {
			0xf6, 0x0e, 0x38, 0x0e, 0xf6,
			0xf5, 0x15, 0x38, 0x06, 0xf8,
			0xf5, 0x1d, 0x33, 0x00, 0xfb,
			0xf6, 0x23, 0x2d, 0xfc, 0xfe,
			0xf9, 0x28, 0x26, 0xf9, 0x00,
			0xfc, 0x2c, 0x1e, 0xf7, 0x03,
			0x00, 0x2e, 0x18, 0xf6, 0x04,
			0x05, 0x2e, 0x11, 0xf7, 0x05
		}
	},
	{
		.min = 1536,
		.max = 2048,
		.coef = {
			0xfb, 0x13, 0x24, 0x13, 0xfb,
			0xfd, 0x17, 0x23, 0x0f, 0xfa,
			0xff, 0x1a, 0x23, 0x0b, 0xf9,
			0x01, 0x1d, 0x22, 0x07, 0xf9,
			0x04, 0x20, 0x1f, 0x04, 0xf9,
			0x07, 0x22, 0x1c, 0x01, 0xfa,
			0x0b, 0x24, 0x17, 0xff, 0xfb,
			0x0f, 0x24, 0x14, 0xfd, 0xfc
		}
	},
	{
		.min = 2048,
		.max = 3072,
		.coef = {
			0x05, 0x10, 0x16, 0x10, 0x05,
			0x06, 0x11, 0x16, 0x0f, 0x04,
			0x08, 0x13, 0x15, 0x0e, 0x02,
			0x09, 0x14, 0x16, 0x0c, 0x01,
			0x0b, 0x15, 0x15, 0x0b, 0x00,
			0x0d, 0x16, 0x13, 0x0a, 0x00,
			0x0f, 0x17, 0x13, 0x08, 0xff,
			0x11, 0x18, 0x12, 0x07, 0xfe
		}
	},
	{
		.min = 3072,
		.max = 4096,
		.coef = {
			0x09, 0x0f, 0x10, 0x0f, 0x09,
			0x09, 0x0f, 0x12, 0x0e, 0x08,
			0x0a, 0x10, 0x11, 0x0e, 0x07,
			0x0b, 0x11, 0x11, 0x0d, 0x06,
			0x0c, 0x11, 0x12, 0x0c, 0x05,
			0x0d, 0x12, 0x11, 0x0c, 0x04,
			0x0e, 0x12, 0x11, 0x0b, 0x04,
			0x0f, 0x13, 0x11, 0x0a, 0x03
		}
	},
	{
		.min = 4096,
		.max = 5120,
		.coef = {
			0x0a, 0x0e, 0x10, 0x0e, 0x0a,
			0x0b, 0x0e, 0x0f, 0x0e, 0x0a,
			0x0b, 0x0f, 0x10, 0x0d, 0x09,
			0x0c, 0x0f, 0x10, 0x0d, 0x08,
			0x0d, 0x0f, 0x0f, 0x0d, 0x08,
			0x0d, 0x10, 0x10, 0x0c, 0x07,
			0x0e, 0x10, 0x0f, 0x0c, 0x07,
			0x0f, 0x10, 0x10, 0x0b, 0x06
		}
	},
	{
		.min = 5120,
		.max = 65535,
		.coef = {
			0x0b, 0x0e, 0x0e, 0x0e, 0x0b,
			0x0b, 0x0e, 0x0f, 0x0d, 0x0b,
			0x0c, 0x0e, 0x0f, 0x0d, 0x0a,
			0x0c, 0x0e, 0x0f, 0x0d, 0x0a,
			0x0d, 0x0f, 0x0e, 0x0d, 0x09,
			0x0d, 0x0f, 0x0f, 0x0c, 0x09,
			0x0e, 0x0f, 0x0e, 0x0c, 0x09,
			0x0e, 0x0f, 0x0f, 0x0c, 0x08
		}
	}
};

#define NB_H_FILTER ARRAY_SIZE(bdisp_h_spec)
#define NB_V_FILTER ARRAY_SIZE(bdisp_v_spec)

/* RGB YUV 601 standard conversion */
static const u32 bdisp_rgb_to_yuv[] = {
		0x0e1e8bee, 0x08420419, 0xfb5ed471, 0x08004080,
};

static const u32 bdisp_yuv_to_rgb[] = {
		0x3324a800, 0xe604ab9c, 0x0004a957, 0x32121eeb,
};