DaVinci: DM646x Video: VPIF driver

From: Chaithrika U S <chaithrika@ti.com>

Video Port Interface driver

Add VPIF driver for DM646x. This code be used by the display and
capture drivers.

Priority: normal

Signed-off-by: Manjunath Hadli <mrh@ti.com>
Signed-off-by: Brijesh Jadav <brijesh.j@ti.com>
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

2 files changed, 866 insertions, 0 deletions

diff --git a/linux/drivers/media/video/davinci/vpif.c b/linux/drivers/media/video/davinci/vpif.c
new file mode 100644
index 000000000..aa771268a
--- /dev/null
+++ b/linux/drivers/media/video/davinci/vpif.c
@@ -0,0 +1,234 @@
+/*
+ * vpif - DM646x Video Port Interface driver
+ * VPIF is a receiver and transmitter for video data. It has two channels(0, 1)
+ * that receiveing video byte stream and two channels(2, 3) for video output.
+ * The hardware supports SDTV, HDTV formats, raw data capture.
+ * Currently, the driver supports NTSC and PAL standards.
+ *
+ * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.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.
+ *
+ * This program is distributed .as is. WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+
+#include "vpif.h"
+
+MODULE_DESCRIPTION("TI DaVinci Video Port Interface driver");
+MODULE_LICENSE("GPL");
+
+#define VPIF_CH0_MAX_MODES	(22)
+#define VPIF_CH1_MAX_MODES	(02)
+#define VPIF_CH2_MAX_MODES	(15)
+#define VPIF_CH3_MAX_MODES	(02)
+
+static inline void vpif_wr_bit(u32 reg, u32 bit, u32 val)
+{
+	if (val)
+		vpif_set_bit(reg, bit);
+	else
+		vpif_clr_bit(reg, bit);
+}
+
+/* This structure is used to keep track of VPIF size register's offsets */
+struct vpif_registers {
+	u32 h_cfg, v_cfg_00, v_cfg_01, v_cfg_02, v_cfg, ch_ctrl;
+	u32 line_offset, vanc0_strt, vanc0_size, vanc1_strt;
+	u32 vanc1_size, width_mask, len_mask;
+	u8 max_modes;
+};
+
+static const struct vpif_registers vpifregs[VPIF_NUM_CHANNELS] = {
+	/* Channel0 */
+	{
+		VPIF_CH0_H_CFG, VPIF_CH0_V_CFG_00, VPIF_CH0_V_CFG_01,
+		VPIF_CH0_V_CFG_02, VPIF_CH0_V_CFG_03, VPIF_CH0_CTRL,
+		VPIF_CH0_IMG_ADD_OFST, 0, 0, 0, 0, 0x1FFF, 0xFFF,
+		VPIF_CH0_MAX_MODES,
+	},
+	/* Channel1 */
+	{
+		VPIF_CH1_H_CFG, VPIF_CH1_V_CFG_00, VPIF_CH1_V_CFG_01,
+		VPIF_CH1_V_CFG_02, VPIF_CH1_V_CFG_03, VPIF_CH1_CTRL,
+		VPIF_CH1_IMG_ADD_OFST, 0, 0, 0, 0, 0x1FFF, 0xFFF,
+		VPIF_CH1_MAX_MODES,
+	},
+	/* Channel2 */
+	{
+		VPIF_CH2_H_CFG, VPIF_CH2_V_CFG_00, VPIF_CH2_V_CFG_01,
+		VPIF_CH2_V_CFG_02, VPIF_CH2_V_CFG_03, VPIF_CH2_CTRL,
+		VPIF_CH2_IMG_ADD_OFST, VPIF_CH2_VANC0_STRT, VPIF_CH2_VANC0_SIZE,
+		VPIF_CH2_VANC1_STRT, VPIF_CH2_VANC1_SIZE, 0x7FF, 0x7FF,
+		VPIF_CH2_MAX_MODES
+	},
+	/* Channel3 */
+	{
+		VPIF_CH3_H_CFG, VPIF_CH3_V_CFG_00, VPIF_CH3_V_CFG_01,
+		VPIF_CH3_V_CFG_02, VPIF_CH3_V_CFG_03, VPIF_CH3_CTRL,
+		VPIF_CH3_IMG_ADD_OFST, VPIF_CH3_VANC0_STRT, VPIF_CH3_VANC0_SIZE,
+		VPIF_CH3_VANC1_STRT, VPIF_CH3_VANC1_SIZE, 0x7FF, 0x7FF,
+		VPIF_CH3_MAX_MODES
+	},
+};
+
+/* vpif_set_mode_info:
+ * This function is used to set horizontal and vertical config parameters
+ * As per the standard in the channel, configure the values of L1, L3,
+ * L5, L7  L9, L11 in VPIF Register , also write width and height
+ */
+static void vpif_set_mode_info(const struct vpif_channel_config_params *config,
+				u8 channel_id, u8 config_channel_id)
+{
+	u32 value;
+
+	value = (config->eav2sav & vpifregs[config_channel_id].width_mask);
+	value <<= VPIF_CH_LEN_SHIFT;
+	value |= (config->sav2eav & vpifregs[config_channel_id].width_mask);
+	regw(value, vpifregs[channel_id].h_cfg);
+
+	value = (config->l1 & vpifregs[config_channel_id].len_mask);
+	value <<= VPIF_CH_LEN_SHIFT;
+	value |= (config->l3 & vpifregs[config_channel_id].len_mask);
+	regw(value, vpifregs[channel_id].v_cfg_00);
+
+	value = (config->l5 & vpifregs[config_channel_id].len_mask);
+	value <<= VPIF_CH_LEN_SHIFT;
+	value |= (config->l7 & vpifregs[config_channel_id].len_mask);
+	regw(value, vpifregs[channel_id].v_cfg_01);
+
+	value = (config->l9 & vpifregs[config_channel_id].len_mask);
+	value <<= VPIF_CH_LEN_SHIFT;
+	value |= (config->l11 & vpifregs[config_channel_id].len_mask);
+	regw(value, vpifregs[channel_id].v_cfg_02);
+
+	value = (config->vsize & vpifregs[config_channel_id].len_mask);
+	regw(value, vpifregs[channel_id].v_cfg);
+}
+
+/* config_vpif_params
+ * Function to set the parameters of a channel
+ * Mainly modifies the channel ciontrol register
+ * It sets frame format, yc mux mode
+ */
+static void config_vpif_params(struct vpif_params *vpifparams,
+				u8 channel_id, u8 found)
+{
+	const struct vpif_channel_config_params *config = &vpifparams->std_info;
+	u32 value, ch_nip, reg;
+	u8 start, end;
+	int i;
+
+	start = channel_id;
+	end = channel_id + found;
+
+	for (i = start; i < end; i++) {
+		reg = vpifregs[i].ch_ctrl;
+		if (channel_id < 2)
+			ch_nip = VPIF_CAPTURE_CH_NIP;
+		else
+			ch_nip = VPIF_DISPLAY_CH_NIP;
+
+		vpif_wr_bit(reg, ch_nip, config->frm_fmt);
+		vpif_wr_bit(reg, VPIF_CH_YC_MUX_BIT, config->ycmux_mode);
+		vpif_wr_bit(reg, VPIF_CH_INPUT_FIELD_FRAME_BIT,
+					vpifparams->video_params.storage_mode);
+
+		/* Set raster scanning SDR Format */
+		vpif_clr_bit(reg, VPIF_CH_SDR_FMT_BIT);
+		vpif_wr_bit(reg, VPIF_CH_DATA_MODE_BIT, config->capture_format);
+
+		if (channel_id > 1)	/* Set the Pixel enable bit */
+			vpif_set_bit(reg, VPIF_DISPLAY_PIX_EN_BIT);
+		else if (config->capture_format) {
+			/* Set the polarity of various pins */
+			vpif_wr_bit(reg, VPIF_CH_FID_POLARITY_BIT,
+					vpifparams->params.raw_params.fid_pol);
+			vpif_wr_bit(reg, VPIF_CH_V_VALID_POLARITY_BIT,
+					vpifparams->params.raw_params.vd_pol);
+			vpif_wr_bit(reg, VPIF_CH_H_VALID_POLARITY_BIT,
+					vpifparams->params.raw_params.hd_pol);
+
+			value = regr(reg);
+			/* Set data width */
+			value &= ((~(unsigned int)(0x3)) <<
+					VPIF_CH_DATA_WIDTH_BIT);
+			value |= ((vpifparams->params.raw_params.data_sz) <<
+						     VPIF_CH_DATA_WIDTH_BIT);
+			regw(value, reg);
+		}
+
+		/* Write the pitch in the driver */
+		regw((vpifparams->video_params.hpitch),
+						vpifregs[i].line_offset);
+	}
+}
+
+/* vpif_set_video_params
+ * This function is used to set video parameters in VPIF register
+ */
+int vpif_set_video_params(struct vpif_params *vpifparams, u8 channel_id)
+{
+	const struct vpif_channel_config_params *config = &vpifparams->std_info;
+	int found = 1;
+
+	vpif_set_mode_info(config, channel_id, channel_id);
+	if (!config->ycmux_mode) {
+		/* YC are on separate channels (HDTV formats) */
+		vpif_set_mode_info(config, channel_id + 1, channel_id);
+		found = 2;
+	}
+
+	config_vpif_params(vpifparams, channel_id, found);
+
+	regw(0x80, VPIF_REQ_SIZE);
+	regw(0x01, VPIF_EMULATION_CTRL);
+
+	return found;
+}
+EXPORT_SYMBOL(vpif_set_video_params);
+
+void vpif_set_vbi_display_params(struct vpif_vbi_params *vbiparams,
+				u8 channel_id)
+{
+	u32 value;
+
+	value = 0x3F8 & (vbiparams->hstart0);
+	value |= 0x3FFFFFF & ((vbiparams->vstart0) << 16);
+	regw(value, vpifregs[channel_id].vanc0_strt);
+
+	value = 0x3F8 & (vbiparams->hstart1);
+	value |= 0x3FFFFFF & ((vbiparams->vstart1) << 16);
+	regw(value, vpifregs[channel_id].vanc1_strt);
+
+	value = 0x3F8 & (vbiparams->hsize0);
+	value |= 0x3FFFFFF & ((vbiparams->vsize0) << 16);
+	regw(value, vpifregs[channel_id].vanc0_size);
+
+	value = 0x3F8 & (vbiparams->hsize1);
+	value |= 0x3FFFFFF & ((vbiparams->vsize1) << 16);
+	regw(value, vpifregs[channel_id].vanc1_size);
+
+}
+EXPORT_SYMBOL(vpif_set_vbi_display_params);
+
+int vpif_channel_getfid(u8 channel_id)
+{
+	return (regr(vpifregs[channel_id].ch_ctrl) & VPIF_CH_FID_MASK)
+					>> VPIF_CH_FID_SHIFT;
+}
+EXPORT_SYMBOL(vpif_channel_getfid);
+
+void vpif_base_addr_init(void __iomem *base)
+{
+	vpif_base = base;
+}
+EXPORT_SYMBOL(vpif_base_addr_init);
diff --git a/linux/drivers/media/video/davinci/vpif.h b/linux/drivers/media/video/davinci/vpif.h
new file mode 100644
index 000000000..fca26dcb5
--- /dev/null
+++ b/linux/drivers/media/video/davinci/vpif.h
@@ -0,0 +1,632 @@
+/*
+ * VPIF header file
+ *
+ * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.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.
+ *
+ * This program is distributed .as is. WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef VPIF_H
+#define VPIF_H
+
+#include <linux/io.h>
+#include <linux/videodev2.h>
+#include <mach/hardware.h>
+
+/* Maximum channel allowed */
+#define VPIF_NUM_CHANNELS		(4)
+#define VPIF_CAPTURE_NUM_CHANNELS	(2)
+#define VPIF_DISPLAY_NUM_CHANNELS	(2)
+
+/* Macros to read/write registers */
+static void __iomem *vpif_base;
+#define regr(reg)               readl((reg) + vpif_base)
+#define regw(value, reg)        writel(value, (reg + vpif_base))
+
+/* Register Addresss Offsets */
+#define VPIF_PID			(0x0000)
+#define VPIF_CH0_CTRL			(0x0004)
+#define VPIF_CH1_CTRL			(0x0008)
+#define VPIF_CH2_CTRL			(0x000C)
+#define VPIF_CH3_CTRL			(0x0010)
+
+#define VPIF_INTEN			(0x0020)
+#define VPIF_INTEN_SET			(0x0024)
+#define VPIF_INTEN_CLR			(0x0028)
+#define VPIF_STATUS			(0x002C)
+#define VPIF_STATUS_CLR			(0x0030)
+#define VPIF_EMULATION_CTRL		(0x0034)
+#define VPIF_REQ_SIZE			(0x0038)
+
+#define VPIF_CH0_TOP_STRT_ADD_LUMA	(0x0040)
+#define VPIF_CH0_BTM_STRT_ADD_LUMA	(0x0044)
+#define VPIF_CH0_TOP_STRT_ADD_CHROMA	(0x0048)
+#define VPIF_CH0_BTM_STRT_ADD_CHROMA	(0x004c)
+#define VPIF_CH0_TOP_STRT_ADD_HANC	(0x0050)
+#define VPIF_CH0_BTM_STRT_ADD_HANC	(0x0054)
+#define VPIF_CH0_TOP_STRT_ADD_VANC	(0x0058)
+#define VPIF_CH0_BTM_STRT_ADD_VANC	(0x005c)
+#define VPIF_CH0_SP_CFG			(0x0060)
+#define VPIF_CH0_IMG_ADD_OFST		(0x0064)
+#define VPIF_CH0_HANC_ADD_OFST		(0x0068)
+#define VPIF_CH0_H_CFG			(0x006c)
+#define VPIF_CH0_V_CFG_00		(0x0070)
+#define VPIF_CH0_V_CFG_01		(0x0074)
+#define VPIF_CH0_V_CFG_02		(0x0078)
+#define VPIF_CH0_V_CFG_03		(0x007c)
+
+#define VPIF_CH1_TOP_STRT_ADD_LUMA	(0x0080)
+#define VPIF_CH1_BTM_STRT_ADD_LUMA	(0x0084)
+#define VPIF_CH1_TOP_STRT_ADD_CHROMA	(0x0088)
+#define VPIF_CH1_BTM_STRT_ADD_CHROMA	(0x008c)
+#define VPIF_CH1_TOP_STRT_ADD_HANC	(0x0090)
+#define VPIF_CH1_BTM_STRT_ADD_HANC	(0x0094)
+#define VPIF_CH1_TOP_STRT_ADD_VANC	(0x0098)
+#define VPIF_CH1_BTM_STRT_ADD_VANC	(0x009c)
+#define VPIF_CH1_SP_CFG			(0x00a0)
+#define VPIF_CH1_IMG_ADD_OFST		(0x00a4)
+#define VPIF_CH1_HANC_ADD_OFST		(0x00a8)
+#define VPIF_CH1_H_CFG			(0x00ac)
+#define VPIF_CH1_V_CFG_00		(0x00b0)
+#define VPIF_CH1_V_CFG_01		(0x00b4)
+#define VPIF_CH1_V_CFG_02		(0x00b8)
+#define VPIF_CH1_V_CFG_03		(0x00bc)
+
+#define VPIF_CH2_TOP_STRT_ADD_LUMA	(0x00c0)
+#define VPIF_CH2_BTM_STRT_ADD_LUMA	(0x00c4)
+#define VPIF_CH2_TOP_STRT_ADD_CHROMA	(0x00c8)
+#define VPIF_CH2_BTM_STRT_ADD_CHROMA	(0x00cc)
+#define VPIF_CH2_TOP_STRT_ADD_HANC	(0x00d0)
+#define VPIF_CH2_BTM_STRT_ADD_HANC	(0x00d4)
+#define VPIF_CH2_TOP_STRT_ADD_VANC	(0x00d8)
+#define VPIF_CH2_BTM_STRT_ADD_VANC	(0x00dc)
+#define VPIF_CH2_SP_CFG			(0x00e0)
+#define VPIF_CH2_IMG_ADD_OFST		(0x00e4)
+#define VPIF_CH2_HANC_ADD_OFST		(0x00e8)
+#define VPIF_CH2_H_CFG			(0x00ec)
+#define VPIF_CH2_V_CFG_00		(0x00f0)
+#define VPIF_CH2_V_CFG_01		(0x00f4)
+#define VPIF_CH2_V_CFG_02		(0x00f8)
+#define VPIF_CH2_V_CFG_03		(0x00fc)
+#define VPIF_CH2_HANC0_STRT		(0x0100)
+#define VPIF_CH2_HANC0_SIZE		(0x0104)
+#define VPIF_CH2_HANC1_STRT		(0x0108)
+#define VPIF_CH2_HANC1_SIZE		(0x010c)
+#define VPIF_CH2_VANC0_STRT		(0x0110)
+#define VPIF_CH2_VANC0_SIZE		(0x0114)
+#define VPIF_CH2_VANC1_STRT		(0x0118)
+#define VPIF_CH2_VANC1_SIZE		(0x011c)
+
+#define VPIF_CH3_TOP_STRT_ADD_LUMA	(0x0140)
+#define VPIF_CH3_BTM_STRT_ADD_LUMA	(0x0144)
+#define VPIF_CH3_TOP_STRT_ADD_CHROMA	(0x0148)
+#define VPIF_CH3_BTM_STRT_ADD_CHROMA	(0x014c)
+#define VPIF_CH3_TOP_STRT_ADD_HANC	(0x0150)
+#define VPIF_CH3_BTM_STRT_ADD_HANC	(0x0154)
+#define VPIF_CH3_TOP_STRT_ADD_VANC	(0x0158)
+#define VPIF_CH3_BTM_STRT_ADD_VANC	(0x015c)
+#define VPIF_CH3_SP_CFG			(0x0160)
+#define VPIF_CH3_IMG_ADD_OFST		(0x0164)
+#define VPIF_CH3_HANC_ADD_OFST		(0x0168)
+#define VPIF_CH3_H_CFG			(0x016c)
+#define VPIF_CH3_V_CFG_00		(0x0170)
+#define VPIF_CH3_V_CFG_01		(0x0174)
+#define VPIF_CH3_V_CFG_02		(0x0178)
+#define VPIF_CH3_V_CFG_03		(0x017c)
+#define VPIF_CH3_HANC0_STRT		(0x0180)
+#define VPIF_CH3_HANC0_SIZE		(0x0184)
+#define VPIF_CH3_HANC1_STRT		(0x0188)
+#define VPIF_CH3_HANC1_SIZE		(0x018c)
+#define VPIF_CH3_VANC0_STRT		(0x0190)
+#define VPIF_CH3_VANC0_SIZE		(0x0194)
+#define VPIF_CH3_VANC1_STRT		(0x0198)
+#define VPIF_CH3_VANC1_SIZE		(0x019c)
+
+#define VPIF_IODFT_CTRL			(0x01c0)
+
+/* Functions for bit Manipulation */
+static inline void vpif_set_bit(u32 reg, u32 bit)
+{
+	regw((regr(reg)) | (0x01 << bit), reg);
+}
+
+static inline void vpif_clr_bit(u32 reg, u32 bit)
+{
+	regw(((regr(reg)) & ~(0x01 << bit)), reg);
+}
+
+/* Macro for Generating mask */
+#ifdef GENERATE_MASK
+#undef GENERATE_MASK
+#endif
+
+#define GENERATE_MASK(bits, pos) \
+		((((0xFFFFFFFF) << (32 - bits)) >> (32 - bits)) << pos)
+
+/* Bit positions in the channel control registers */
+#define VPIF_CH_DATA_MODE_BIT	(2)
+#define VPIF_CH_YC_MUX_BIT	(3)
+#define VPIF_CH_SDR_FMT_BIT	(4)
+#define VPIF_CH_HANC_EN_BIT	(8)
+#define VPIF_CH_VANC_EN_BIT	(9)
+
+#define VPIF_CAPTURE_CH_NIP	(10)
+#define VPIF_DISPLAY_CH_NIP	(11)
+
+#define VPIF_DISPLAY_PIX_EN_BIT	(10)
+
+#define VPIF_CH_INPUT_FIELD_FRAME_BIT	(12)
+
+#define VPIF_CH_FID_POLARITY_BIT	(15)
+#define VPIF_CH_V_VALID_POLARITY_BIT	(14)
+#define VPIF_CH_H_VALID_POLARITY_BIT	(13)
+#define VPIF_CH_DATA_WIDTH_BIT		(28)
+
+#define VPIF_CH_CLK_EDGE_CTRL_BIT	(31)
+
+/* Mask various length */
+#define VPIF_CH_EAVSAV_MASK	GENERATE_MASK(13, 0)
+#define VPIF_CH_LEN_MASK	GENERATE_MASK(12, 0)
+#define VPIF_CH_WIDTH_MASK	GENERATE_MASK(13, 0)
+#define VPIF_CH_LEN_SHIFT	(16)
+
+/* VPIF masks for registers */
+#define VPIF_REQ_SIZE_MASK	(0x1ff)
+
+/* bit posotion of interrupt vpif_ch_intr register */
+#define VPIF_INTEN_FRAME_CH0	(0x00000001)
+#define VPIF_INTEN_FRAME_CH1	(0x00000002)
+#define VPIF_INTEN_FRAME_CH2	(0x00000004)
+#define VPIF_INTEN_FRAME_CH3	(0x00000008)
+
+/* bit position of clock and channel enable in vpif_chn_ctrl register */
+
+#define VPIF_CH0_CLK_EN		(0x00000002)
+#define VPIF_CH0_EN		(0x00000001)
+#define VPIF_CH1_CLK_EN		(0x00000002)
+#define VPIF_CH1_EN		(0x00000001)
+#define VPIF_CH2_CLK_EN		(0x00000002)
+#define VPIF_CH2_EN		(0x00000001)
+#define VPIF_CH3_CLK_EN		(0x00000002)
+#define VPIF_CH3_EN		(0x00000001)
+#define VPIF_CH_CLK_EN		(0x00000002)
+#define VPIF_CH_EN		(0x00000001)
+
+#define VPIF_INT_TOP	(0x00)
+#define VPIF_INT_BOTTOM	(0x01)
+#define VPIF_INT_BOTH	(0x02)
+
+#define VPIF_CH0_INT_CTRL_SHIFT	(6)
+#define VPIF_CH1_INT_CTRL_SHIFT	(6)
+#define VPIF_CH2_INT_CTRL_SHIFT	(6)
+#define VPIF_CH3_INT_CTRL_SHIFT	(6)
+#define VPIF_CH_INT_CTRL_SHIFT	(6)
+
+/* enabled interrupt on both the fields on vpid_ch0_ctrl register */
+#define channel0_intr_assert()	(regw((regr(VPIF_CH0_CTRL)|\
+	(VPIF_INT_BOTH << VPIF_CH0_INT_CTRL_SHIFT)), VPIF_CH0_CTRL))
+
+/* enabled interrupt on both the fields on vpid_ch1_ctrl register */
+#define channel1_intr_assert()	(regw((regr(VPIF_CH1_CTRL)|\
+	(VPIF_INT_BOTH << VPIF_CH1_INT_CTRL_SHIFT)), VPIF_CH1_CTRL))
+
+/* enabled interrupt on both the fields on vpid_ch0_ctrl register */
+#define channel2_intr_assert() 	(regw((regr(VPIF_CH2_CTRL)|\
+	(VPIF_INT_BOTH << VPIF_CH2_INT_CTRL_SHIFT)), VPIF_CH2_CTRL))
+
+/* enabled interrupt on both the fields on vpid_ch1_ctrl register */
+#define channel3_intr_assert() 	(regw((regr(VPIF_CH3_CTRL)|\
+	(VPIF_INT_BOTH << VPIF_CH3_INT_CTRL_SHIFT)), VPIF_CH3_CTRL))
+
+#define VPIF_CH_FID_MASK	(0x20)
+#define VPIF_CH_FID_SHIFT	(5)
+
+#define VPIF_NTSC_VBI_START_FIELD0	(1)
+#define VPIF_NTSC_VBI_START_FIELD1	(263)
+#define VPIF_PAL_VBI_START_FIELD0	(624)
+#define VPIF_PAL_VBI_START_FIELD1	(311)
+
+#define VPIF_NTSC_HBI_START_FIELD0	(1)
+#define VPIF_NTSC_HBI_START_FIELD1	(263)
+#define VPIF_PAL_HBI_START_FIELD0	(624)
+#define VPIF_PAL_HBI_START_FIELD1	(311)
+
+#define VPIF_NTSC_VBI_COUNT_FIELD0	(20)
+#define VPIF_NTSC_VBI_COUNT_FIELD1	(19)
+#define VPIF_PAL_VBI_COUNT_FIELD0	(24)
+#define VPIF_PAL_VBI_COUNT_FIELD1	(25)
+
+#define VPIF_NTSC_HBI_COUNT_FIELD0	(263)
+#define VPIF_NTSC_HBI_COUNT_FIELD1	(262)
+#define VPIF_PAL_HBI_COUNT_FIELD0	(312)
+#define VPIF_PAL_HBI_COUNT_FIELD1	(313)
+
+#define VPIF_NTSC_VBI_SAMPLES_PER_LINE	(720)
+#define VPIF_PAL_VBI_SAMPLES_PER_LINE	(720)
+#define VPIF_NTSC_HBI_SAMPLES_PER_LINE	(268)
+#define VPIF_PAL_HBI_SAMPLES_PER_LINE	(280)
+
+#define VPIF_CH_VANC_EN			(0x20)
+#define VPIF_DMA_REQ_SIZE		(0x080)
+#define VPIF_EMULATION_DISABLE		(0x01)
+
+extern u8 irq_vpif_capture_channel[VPIF_NUM_CHANNELS];
+
+/* inline function to enable/disable channel0 */
+static inline void enable_channel0(int enable)
+{
+	if (enable)
+		regw((regr(VPIF_CH0_CTRL) | (VPIF_CH0_EN)), VPIF_CH0_CTRL);
+	else
+		regw((regr(VPIF_CH0_CTRL) & (~VPIF_CH0_EN)), VPIF_CH0_CTRL);
+}
+
+/* inline function to enable/disable channel1 */
+static inline void enable_channel1(int enable)
+{
+	if (enable)
+		regw((regr(VPIF_CH1_CTRL) | (VPIF_CH1_EN)), VPIF_CH1_CTRL);
+	else
+		regw((regr(VPIF_CH1_CTRL) & (~VPIF_CH1_EN)), VPIF_CH1_CTRL);
+}
+
+/* inline function to enable interrupt for channel0 */
+static inline void channel0_intr_enable(int enable)
+{
+	if (enable) {
+		regw((regr(VPIF_INTEN) | 0x10), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | 0x10), VPIF_INTEN_SET);
+
+		regw((regr(VPIF_INTEN) | VPIF_INTEN_FRAME_CH0), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH0),
+							VPIF_INTEN_SET);
+	} else {
+		regw((regr(VPIF_INTEN) & (~VPIF_INTEN_FRAME_CH0)), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH0),
+							VPIF_INTEN_SET);
+	}
+}
+
+/* inline function to enable interrupt for channel1 */
+static inline void channel1_intr_enable(int enable)
+{
+	if (enable) {
+		regw((regr(VPIF_INTEN) | 0x10), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | 0x10), VPIF_INTEN_SET);
+
+		regw((regr(VPIF_INTEN) | VPIF_INTEN_FRAME_CH1), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH1),
+							VPIF_INTEN_SET);
+	} else {
+		regw((regr(VPIF_INTEN) & (~VPIF_INTEN_FRAME_CH1)), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH1),
+							VPIF_INTEN_SET);
+	}
+}
+
+/* inline function to set buffer addresses in case of Y/C non mux mode */
+static inline void ch0_set_videobuf_addr_yc_nmux(unsigned long top_strt_luma,
+						 unsigned long btm_strt_luma,
+						 unsigned long top_strt_chroma,
+						 unsigned long btm_strt_chroma)
+{
+	regw(top_strt_luma, VPIF_CH0_TOP_STRT_ADD_LUMA);
+	regw(btm_strt_luma, VPIF_CH0_BTM_STRT_ADD_LUMA);
+	regw(top_strt_chroma, VPIF_CH1_TOP_STRT_ADD_CHROMA);
+	regw(btm_strt_chroma, VPIF_CH1_BTM_STRT_ADD_CHROMA);
+}
+
+/* inline function to set buffer addresses in VPIF registers for video data */
+static inline void ch0_set_videobuf_addr(unsigned long top_strt_luma,
+					 unsigned long btm_strt_luma,
+					 unsigned long top_strt_chroma,
+					 unsigned long btm_strt_chroma)
+{
+	regw(top_strt_luma, VPIF_CH0_TOP_STRT_ADD_LUMA);
+	regw(btm_strt_luma, VPIF_CH0_BTM_STRT_ADD_LUMA);
+	regw(top_strt_chroma, VPIF_CH0_TOP_STRT_ADD_CHROMA);
+	regw(btm_strt_chroma, VPIF_CH0_BTM_STRT_ADD_CHROMA);
+}
+
+static inline void ch1_set_videobuf_addr(unsigned long top_strt_luma,
+					 unsigned long btm_strt_luma,
+					 unsigned long top_strt_chroma,
+					 unsigned long btm_strt_chroma)
+{
+
+	regw(top_strt_luma, VPIF_CH1_TOP_STRT_ADD_LUMA);
+	regw(btm_strt_luma, VPIF_CH1_BTM_STRT_ADD_LUMA);
+	regw(top_strt_chroma, VPIF_CH1_TOP_STRT_ADD_CHROMA);
+	regw(btm_strt_chroma, VPIF_CH1_BTM_STRT_ADD_CHROMA);
+}
+
+static inline void ch0_set_vbi_addr(unsigned long top_vbi,
+	unsigned long btm_vbi, unsigned long a, unsigned long b)
+{
+	regw(top_vbi, VPIF_CH0_TOP_STRT_ADD_VANC);
+	regw(btm_vbi, VPIF_CH0_BTM_STRT_ADD_VANC);
+}
+
+static inline void ch0_set_hbi_addr(unsigned long top_vbi,
+	unsigned long btm_vbi, unsigned long a, unsigned long b)
+{
+	regw(top_vbi, VPIF_CH0_TOP_STRT_ADD_HANC);
+	regw(btm_vbi, VPIF_CH0_BTM_STRT_ADD_HANC);
+}
+
+static inline void ch1_set_vbi_addr(unsigned long top_vbi,
+	unsigned long btm_vbi, unsigned long a, unsigned long b)
+{
+	regw(top_vbi, VPIF_CH1_TOP_STRT_ADD_VANC);
+	regw(btm_vbi, VPIF_CH1_BTM_STRT_ADD_VANC);
+}
+
+static inline void ch1_set_hbi_addr(unsigned long top_vbi,
+	unsigned long btm_vbi, unsigned long a, unsigned long b)
+{
+	regw(top_vbi, VPIF_CH1_TOP_STRT_ADD_HANC);
+	regw(btm_vbi, VPIF_CH1_BTM_STRT_ADD_HANC);
+}
+
+/* Inline function to enable raw vbi in the given channel */
+static inline void disable_raw_feature(u8 channel_id, u8 index)
+{
+	u32 ctrl_reg;
+	if (0 == channel_id)
+		ctrl_reg = VPIF_CH0_CTRL;
+	else
+		ctrl_reg = VPIF_CH1_CTRL;
+
+	if (1 == index)
+		vpif_clr_bit(ctrl_reg, VPIF_CH_VANC_EN_BIT);
+	else
+		vpif_clr_bit(ctrl_reg, VPIF_CH_HANC_EN_BIT);
+}
+
+static inline void enable_raw_feature(u8 channel_id, u8 index)
+{
+	u32 ctrl_reg;
+	if (0 == channel_id)
+		ctrl_reg = VPIF_CH0_CTRL;
+	else
+		ctrl_reg = VPIF_CH1_CTRL;
+
+	if (1 == index)
+		vpif_set_bit(ctrl_reg, VPIF_CH_VANC_EN_BIT);
+	else
+		vpif_set_bit(ctrl_reg, VPIF_CH_HANC_EN_BIT);
+}
+
+/* inline function to enable/disable channel2 */
+static inline void enable_channel2(int enable)
+{
+	if (enable) {
+		regw((regr(VPIF_CH2_CTRL) | (VPIF_CH2_CLK_EN)), VPIF_CH2_CTRL);
+		regw((regr(VPIF_CH2_CTRL) | (VPIF_CH2_EN)), VPIF_CH2_CTRL);
+	} else {
+		regw((regr(VPIF_CH2_CTRL) & (~VPIF_CH2_CLK_EN)), VPIF_CH2_CTRL);
+		regw((regr(VPIF_CH2_CTRL) & (~VPIF_CH2_EN)), VPIF_CH2_CTRL);
+	}
+}
+
+/* inline function to enable/disable channel3 */
+static inline void enable_channel3(int enable)
+{
+	if (enable) {
+		regw((regr(VPIF_CH3_CTRL) | (VPIF_CH3_CLK_EN)), VPIF_CH3_CTRL);
+		regw((regr(VPIF_CH3_CTRL) | (VPIF_CH3_EN)), VPIF_CH3_CTRL);
+	} else {
+		regw((regr(VPIF_CH3_CTRL) & (~VPIF_CH3_CLK_EN)), VPIF_CH3_CTRL);
+		regw((regr(VPIF_CH3_CTRL) & (~VPIF_CH3_EN)), VPIF_CH3_CTRL);
+	}
+}
+
+/* inline function to enable interrupt for channel2 */
+static inline void channel2_intr_enable(int enable)
+{
+	if (enable) {
+		regw((regr(VPIF_INTEN) | 0x10), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | 0x10), VPIF_INTEN_SET);
+		regw((regr(VPIF_INTEN) | VPIF_INTEN_FRAME_CH2), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH2),
+							VPIF_INTEN_SET);
+	} else {
+		regw((regr(VPIF_INTEN) & (~VPIF_INTEN_FRAME_CH2)), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH2),
+							VPIF_INTEN_SET);
+	}
+}
+
+/* inline function to enable interrupt for channel3 */
+static inline void channel3_intr_enable(int enable)
+{
+	if (enable) {
+		regw((regr(VPIF_INTEN) | 0x10), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | 0x10), VPIF_INTEN_SET);
+
+		regw((regr(VPIF_INTEN) | VPIF_INTEN_FRAME_CH3), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH3),
+							VPIF_INTEN_SET);
+	} else {
+		regw((regr(VPIF_INTEN) & (~VPIF_INTEN_FRAME_CH3)), VPIF_INTEN);
+		regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH3),
+							VPIF_INTEN_SET);
+	}
+}
+
+/* inline function to enable raw vbi data for channel2 */
+static inline void channel2_raw_enable(int enable, u8 index)
+{
+	u32 mask;
+
+	if (1 == index)
+		mask = VPIF_CH_VANC_EN_BIT;
+	else
+		mask = VPIF_CH_HANC_EN_BIT;
+
+	if (enable)
+		vpif_set_bit(VPIF_CH2_CTRL, mask);
+	else
+		vpif_clr_bit(VPIF_CH2_CTRL, mask);
+}
+
+/* inline function to enable raw vbi data for channel3*/
+static inline void channel3_raw_enable(int enable, u8 index)
+{
+	u32 mask;
+
+	if (1 == index)
+		mask = VPIF_CH_VANC_EN_BIT;
+	else
+		mask = VPIF_CH_HANC_EN_BIT;
+
+	if (enable)
+		vpif_set_bit(VPIF_CH3_CTRL, mask);
+	else
+		vpif_clr_bit(VPIF_CH3_CTRL, mask);
+}
+
+/* inline function to set buffer addresses in case of Y/C non mux mode */
+static inline void ch2_set_videobuf_addr_yc_nmux(unsigned long top_strt_luma,
+						 unsigned long btm_strt_luma,
+						 unsigned long top_strt_chroma,
+						 unsigned long btm_strt_chroma)
+{
+	regw(top_strt_luma, VPIF_CH2_TOP_STRT_ADD_LUMA);
+	regw(btm_strt_luma, VPIF_CH2_BTM_STRT_ADD_LUMA);
+	regw(top_strt_chroma, VPIF_CH3_TOP_STRT_ADD_CHROMA);
+	regw(btm_strt_chroma, VPIF_CH3_BTM_STRT_ADD_CHROMA);
+}
+
+/* inline function to set buffer addresses in VPIF registers for video data */
+static inline void ch2_set_videobuf_addr(unsigned long top_strt_luma,
+					 unsigned long btm_strt_luma,
+					 unsigned long top_strt_chroma,
+					 unsigned long btm_strt_chroma)
+{
+	regw(top_strt_luma, VPIF_CH2_TOP_STRT_ADD_LUMA);
+	regw(btm_strt_luma, VPIF_CH2_BTM_STRT_ADD_LUMA);
+	regw(top_strt_chroma, VPIF_CH2_TOP_STRT_ADD_CHROMA);
+	regw(btm_strt_chroma, VPIF_CH2_BTM_STRT_ADD_CHROMA);
+}
+
+static inline void ch3_set_videobuf_addr(unsigned long top_strt_luma,
+					 unsigned long btm_strt_luma,
+					 unsigned long top_strt_chroma,
+					 unsigned long btm_strt_chroma)
+{
+	regw(top_strt_luma, VPIF_CH3_TOP_STRT_ADD_LUMA);
+	regw(btm_strt_luma, VPIF_CH3_BTM_STRT_ADD_LUMA);
+	regw(top_strt_chroma, VPIF_CH3_TOP_STRT_ADD_CHROMA);
+	regw(btm_strt_chroma, VPIF_CH3_BTM_STRT_ADD_CHROMA);
+}
+
+/* inline function to set buffer addresses in VPIF registers for vbi data */
+static inline void ch2_set_vbi_addr(unsigned long top_strt_luma,
+					 unsigned long btm_strt_luma,
+					 unsigned long top_strt_chroma,
+					 unsigned long btm_strt_chroma)
+{
+	regw(top_strt_luma, VPIF_CH2_TOP_STRT_ADD_VANC);
+	regw(btm_strt_luma, VPIF_CH2_BTM_STRT_ADD_VANC);
+}
+
+static inline void ch3_set_vbi_addr(unsigned long top_strt_luma,
+					 unsigned long btm_strt_luma,
+					 unsigned long top_strt_chroma,
+					 unsigned long btm_strt_chroma)
+{
+	regw(top_strt_luma, VPIF_CH3_TOP_STRT_ADD_VANC);
+	regw(btm_strt_luma, VPIF_CH3_BTM_STRT_ADD_VANC);
+}
+
+#define VPIF_MAX_NAME	(30)
+
+/* This structure will store size parameters as per the mode selected by user */
+struct vpif_channel_config_params {
+	char name[VPIF_MAX_NAME];	/* Name of the mode */
+	u16 width;			/* Indicates width of the image */
+	u16 height;			/* Indicates height of the image */
+	u8 fps;
+	u8 frm_fmt;			/* Indicates whether this is interlaced
+					 * or progressive format */
+	u8 ycmux_mode;			/* Indicates whether this mode requires
+					 * single or two channels */
+	u16 eav2sav;			/* length of sav 2 eav */
+	u16 sav2eav;			/* length of sav 2 eav */
+	u16 l1, l3, l5, l7, l9, l11;	/* Other parameter configurations */
+	u16 vsize;			/* Vertical size of the image */
+	u8 capture_format;		/* Indicates whether capture format
+					 * is in BT or in CCD/CMOS */
+	u8  vbi_supported;		/* Indicates whether this mode
+					 * supports capturing vbi or not */
+	u8 hd_sd;
+	v4l2_std_id stdid;
+};
+
+struct vpif_interface;
+struct vpif_params;
+struct vpif_vbi_params;
+
+int vpif_set_video_params(struct vpif_params *vpifparams, u8 channel_id);
+void vpif_set_vbi_display_params(struct vpif_vbi_params *vbiparams,
+							u8 channel_id);
+int vpif_channel_getfid(u8 channel_id);
+void vpif_base_addr_init(void __iomem *base);
+
+/* Enumerated data types */
+enum vpif_capture_pinpol {
+	VPIF_CAPTURE_PINPOL_SAME	= 0,
+	VPIF_CAPTURE_PINPOL_INVERT	= 1
+};
+
+enum data_size {
+	_8BITS = 0,
+	_10BITS,
+	_12BITS,
+};
+
+struct vpif_capture_params_raw {
+	enum data_size data_sz;
+	enum vpif_capture_pinpol fid_pol;
+	enum vpif_capture_pinpol vd_pol;
+	enum vpif_capture_pinpol hd_pol;
+};
+
+/* Structure for vpif parameters for raw vbi data */
+struct vpif_vbi_params {
+	__u32 hstart0;  /* Horizontal start of raw vbi data for first field */
+	__u32 vstart0;  /* Vertical start of raw vbi data for first field */
+	__u32 hsize0;   /* Horizontal size of raw vbi data for first field */
+	__u32 vsize0;   /* Vertical size of raw vbi data for first field */
+	__u32 hstart1;  /* Horizontal start of raw vbi data for second field */
+	__u32 vstart1;  /* Vertical start of raw vbi data for second field */
+	__u32 hsize1;   /* Horizontal size of raw vbi data for second field */
+	__u32 vsize1;   /* Vertical size of raw vbi data for second field */
+};
+
+/* structure for vpif parameters */
+struct vpif_interface {
+	__u8 storage_mode;	/* Indicates field or frame mode */
+	unsigned long hpitch;
+	v4l2_std_id stdid;
+};
+
+struct vpif_params {
+	struct vpif_interface video_params;
+	struct vpif_channel_config_params std_info;
+	union param {
+		struct vpif_vbi_params	vbi_params;
+		struct vpif_capture_params_raw	raw_params;
+	} params;
+};
+
+#endif				/* End of #ifndef VPIF_H */
+