On Wednesday 08 April 2009 13:18:45 Chaithrika U S wrote:
> Video Port Interface driver
>
> Add VPIF driver for DM646x. This code be used by the display and
> capture drivers.
>
> Signed-off-by: Manjunath Hadli <m...@ti.com>
> Signed-off-by: Brijesh Jadav <brijes...@ti.com>
> Signed-off-by: Chaithrika U S <chaithr...@ti.com>
> ---
> Applies to v4l-dvb repository
>
> drivers/media/video/davinci/vpif.c | 252 ++++++++++++++
> drivers/media/video/davinci/vpif.h | 640
> ++++++++++++++++++++++++++++++++++++
> 2 files changed, 892 insertions(+), 0 deletions(-)
> create mode 100644 drivers/media/video/davinci/vpif.c
> create mode 100644 drivers/media/video/davinci/vpif.h
>
> diff --git a/drivers/media/video/davinci/vpif.c
> b/drivers/media/video/davinci/vpif.c
> new file mode 100644
> index 0000000..a3b5211
> --- /dev/null
> +++ b/drivers/media/video/davinci/vpif.c
> @@ -0,0 +1,252 @@
> +/*
> + * 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)
> +
> +/* 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 struct vpif_registers vpifregs[VPIF_NUM_CHANNELS] = {
This can be const.
> + /* 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(struct vpif_channel_config_params *config,
The config pointer should probably be const as well, my guess is that it can
be const almost everywhere.
> + 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)
> +{
> + 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;
> +
> + if (config->frm_fmt) /* Progressive Frame Format */
> + vpif_set_bit(reg, ch_nip);
> + else /* Interlaced Frame Format */
> + vpif_clr_bit(reg, ch_nip);
I suggest a small inline like this:
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);
}
That will simplify this code.
> +
> + if (config->ycmux_mode) /* YC Mux mode */
> + vpif_set_bit(reg, VPIF_CH_YC_MUX_BIT);
> + else
> + vpif_clr_bit(reg, VPIF_CH_YC_MUX_BIT);
> +
> + if (vpifparams->video_params.storage_mode)
> + vpif_set_bit(reg, VPIF_CH_INPUT_FIELD_FRAME_BIT);
> + else
> + vpif_clr_bit(reg, VPIF_CH_INPUT_FIELD_FRAME_BIT);
> +
> + /* Set raster scanning SDR Format */
> + vpif_clr_bit(reg, VPIF_CH_SDR_FMT_BIT);
> + if (config->capture_format)
> + vpif_set_bit(reg, VPIF_CH_DATA_MODE_BIT);
> + else
> + vpif_clr_bit(reg, VPIF_CH_DATA_MODE_BIT);
> +
> + 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 */
> +
> + if (vpifparams->params.raw_params.fid_pol)
> + vpif_set_bit(reg, VPIF_CH_FID_POLARITY_BIT);
> + else
> + vpif_clr_bit(reg, VPIF_CH_FID_POLARITY_BIT);
> +
> + if (vpifparams->params.raw_params.vd_pol)
> + vpif_set_bit(reg, VPIF_CH_V_VALID_POLARITY_BIT);
> + else
> + vpif_clr_bit(reg, VPIF_CH_V_VALID_POLARITY_BIT);
> +
> + if (vpifparams->params.raw_params.hd_pol)
> + vpif_set_bit(reg, VPIF_CH_H_VALID_POLARITY_BIT);
> + else
> + vpif_clr_bit(reg, VPIF_CH_H_VALID_POLARITY_BIT);
> +
> + 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)
> +{
> + struct vpif_channel_config_params *config = &vpifparams->std_info;
> + int found = -1;
This function can never return -1, right?
> +
> + vpif_set_mode_info(config, channel_id, channel_id);
> + found = 1;
> + if (!config->ycmux_mode) {
> + vpif_set_mode_info(config, channel_id + 1, channel_id);
> + found = 2;
The return code needs to be documented.
> + }
> +
> + 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);
> +
> +int 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);
> +
> + return 0;
This always return 0. Perhaps this should be a void function?
> +}
> +EXPORT_SYMBOL(vpif_set_vbi_display_params);
> +
> +int vpif_channel_getfid(u8 channel_id)
> +{
> + int val;
> + val = ((regr(vpifregs[channel_id].ch_ctrl) & VPIF_CH_FID_MASK)
Just 'return' directly here. There is no need for the 'val' variable.
> + >> VPIF_CH_FID_SHIFT);
> +
> + return val;
> +}
> +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/drivers/media/video/davinci/vpif.h
> b/drivers/media/video/davinci/vpif.h
> new file mode 100644
> index 0000000..8d0a180
> --- /dev/null
> +++ b/drivers/media/video/davinci/vpif.h
> @@ -0,0 +1,640 @@
> +/*
> + * 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))
This can be written as:
#define channel0_intr_assert() (regw((regr(VPIF_CH0_CTRL) | \
(VPIF_INT_BOTH << VPIF_CH0_INT_CTRL_SHIFT)), VPIF_CH0_CTRL))
It's shorter and easier to read this way.
> +
> +/* 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);
> +int 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 */
> +
Regards,
Hans
--
Hans Verkuil - video4linux developer - sponsored by TANDBERG
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
