drivers/media/platform/ti/davinci/vpif.h

root/drivers/media/platform/ti/davinci/vpif.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * VPIF header file
 *
 * Copyright (C) 2009 Texas Instruments Incorporated - https://www.ti.com/
 */

#ifndef VPIF_H
#define VPIF_H

#include <linux/io.h>
#include <linux/videodev2.h>
#include <media/davinci/vpif_types.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 */
extern void __iomem *vpif_base;
extern spinlock_t vpif_lock;

#define regr(reg)               readl((reg) + vpif_base)
#define regw(value, reg)        writel(value, (reg + vpif_base))

/* Register Address 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)

#define VPIF_CH2_CLIP_ANC_EN    14
#define VPIF_CH2_CLIP_ACTIVE_EN 13

#define VPIF_CH3_CLIP_ANC_EN    14
#define VPIF_CH3_CLIP_ACTIVE_EN 13

/* 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)
{
        unsigned long flags;

        spin_lock_irqsave(&vpif_lock, flags);

        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);
        }
        spin_unlock_irqrestore(&vpif_lock, flags);
}

/* inline function to enable interrupt for channel1 */
static inline void channel1_intr_enable(int enable)
{
        unsigned long flags;

        spin_lock_irqsave(&vpif_lock, flags);

        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);
        }
        spin_unlock_irqrestore(&vpif_lock, flags);
}

/* inline function to set buffer addresses in case of Y/C non mux mode */
static inline void ch0_set_video_buf_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_video_buf_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_video_buf_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)
{
        unsigned long flags;

        spin_lock_irqsave(&vpif_lock, flags);

        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);
        }
        spin_unlock_irqrestore(&vpif_lock, flags);
}

/* inline function to enable interrupt for channel3 */
static inline void channel3_intr_enable(int enable)
{
        unsigned long flags;

        spin_lock_irqsave(&vpif_lock, flags);

        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);
        }
        spin_unlock_irqrestore(&vpif_lock, flags);
}

/* 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);
}

/* function to enable clipping (for both active and blanking regions) on ch 2 */
static inline void channel2_clipping_enable(int enable)
{
        if (enable) {
                vpif_set_bit(VPIF_CH2_CTRL, VPIF_CH2_CLIP_ANC_EN);
                vpif_set_bit(VPIF_CH2_CTRL, VPIF_CH2_CLIP_ACTIVE_EN);
        } else {
                vpif_clr_bit(VPIF_CH2_CTRL, VPIF_CH2_CLIP_ANC_EN);
                vpif_clr_bit(VPIF_CH2_CTRL, VPIF_CH2_CLIP_ACTIVE_EN);
        }
}

/* function to enable clipping (for both active and blanking regions) on ch 3 */
static inline void channel3_clipping_enable(int enable)
{
        if (enable) {
                vpif_set_bit(VPIF_CH3_CTRL, VPIF_CH3_CLIP_ANC_EN);
                vpif_set_bit(VPIF_CH3_CTRL, VPIF_CH3_CLIP_ACTIVE_EN);
        } else {
                vpif_clr_bit(VPIF_CH3_CTRL, VPIF_CH3_CLIP_ANC_EN);
                vpif_clr_bit(VPIF_CH3_CTRL, VPIF_CH3_CLIP_ACTIVE_EN);
        }
}

/* inline function to set buffer addresses in case of Y/C non mux mode */
static inline void ch2_set_video_buf_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_video_buf_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_video_buf_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);
}

static inline int vpif_intr_status(int channel)
{
        int status = 0;
        int mask;

        if (channel < 0 || channel > 3)
                return 0;

        mask = 1 << channel;
        status = regr(VPIF_STATUS) & mask;
        regw(status, VPIF_STATUS_CLR);

        return status;
}

#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 frm_fmt;                     /* Interlaced (0) or progressive (1) */
        u8 ycmux_mode;                  /* This mode requires one (0) or two (1)
                                           channels */
        u16 eav2sav;                    /* length of eav 2 sav */
        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;                       /* HDTV (1) or SDTV (0) format */
        v4l2_std_id stdid;              /* SDTV format */
        struct v4l2_dv_timings dv_timings;      /* HDTV format */
};

extern const unsigned int vpif_ch_params_count;
extern const struct vpif_channel_config_params vpif_ch_params[];

struct vpif_video_params;
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);

enum data_size {
        _8BITS = 0,
        _10BITS,
        _12BITS,
};

/* 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_video_params {
        __u8 storage_mode;      /* Indicates field or frame mode */
        unsigned long hpitch;
        v4l2_std_id stdid;
};

struct vpif_params {
        struct vpif_interface iface;
        struct vpif_video_params video_params;
        struct vpif_channel_config_params std_info;
        union param {
                struct vpif_vbi_params  vbi_params;
                enum data_size data_sz;
        } params;
};

#endif                          /* End of #ifndef VPIF_H */
Linux
