W: https://linuxtv.org
Q: http://patchwork.linuxtv.org/project/linux-media/list/
T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
-F: drivers/media/platform/am437x/
+F: drivers/media/platform/ti/am437x/
TI BANDGAP AND THERMAL DRIVER
M: Eduardo Valentin <edubezval@gmail.com>
source "drivers/media/platform/st/sti/Kconfig"
source "drivers/media/platform/st/stm32/Kconfig"
source "drivers/media/platform/ti-vpe/Kconfig"
+source "drivers/media/platform/ti/am437x/Kconfig"
source "drivers/media/platform/via/Kconfig"
source "drivers/media/platform/xilinx/Kconfig"
obj-y += st/sti/hva/
obj-y += st/stm32/
obj-y += ti-vpe/
+obj-y += ti/am437x/
obj-y += via/
obj-y += xilinx/
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0-only
-config VIDEO_AM437X_VPFE
- tristate "TI AM437x VPFE video capture driver"
- depends on V4L_PLATFORM_DRIVERS
- depends on VIDEO_V4L2
- depends on SOC_AM43XX || COMPILE_TEST
- select MEDIA_CONTROLLER
- select VIDEO_V4L2_SUBDEV_API
- select VIDEOBUF2_DMA_CONTIG
- select V4L2_FWNODE
- help
- Support for AM437x Video Processing Front End based Video
- Capture Driver.
-
- To compile this driver as a module, choose M here. The module
- will be called am437x-vpfe.
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0-only
-# Makefile for AM437x VPFE driver
-
-obj-$(CONFIG_VIDEO_AM437X_VPFE) += am437x-vpfe.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * TI VPFE capture Driver
- *
- * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
- *
- * Benoit Parrot <bparrot@ti.com>
- * Lad, Prabhakar <prabhakar.csengg@gmail.com>
- */
-
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/of_graph.h>
-#include <linux/pinctrl/consumer.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include <linux/videodev2.h>
-
-#include <media/v4l2-common.h>
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-event.h>
-#include <media/v4l2-fwnode.h>
-#include <media/v4l2-rect.h>
-
-#include "am437x-vpfe.h"
-
-#define VPFE_MODULE_NAME "vpfe"
-#define VPFE_VERSION "0.1.0"
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Debug level 0-8");
-
-#define vpfe_dbg(level, dev, fmt, arg...) \
- v4l2_dbg(level, debug, &dev->v4l2_dev, fmt, ##arg)
-#define vpfe_info(dev, fmt, arg...) \
- v4l2_info(&dev->v4l2_dev, fmt, ##arg)
-#define vpfe_err(dev, fmt, arg...) \
- v4l2_err(&dev->v4l2_dev, fmt, ##arg)
-
-/* standard information */
-struct vpfe_standard {
- v4l2_std_id std_id;
- unsigned int width;
- unsigned int height;
- struct v4l2_fract pixelaspect;
- int frame_format;
-};
-
-static const struct vpfe_standard vpfe_standards[] = {
- {V4L2_STD_525_60, 720, 480, {11, 10}, 1},
- {V4L2_STD_625_50, 720, 576, {54, 59}, 1},
-};
-
-static struct vpfe_fmt formats[VPFE_NUM_FORMATS] = {
- {
- .fourcc = V4L2_PIX_FMT_YUYV,
- .code = MEDIA_BUS_FMT_YUYV8_2X8,
- .bitsperpixel = 16,
- }, {
- .fourcc = V4L2_PIX_FMT_UYVY,
- .code = MEDIA_BUS_FMT_UYVY8_2X8,
- .bitsperpixel = 16,
- }, {
- .fourcc = V4L2_PIX_FMT_YVYU,
- .code = MEDIA_BUS_FMT_YVYU8_2X8,
- .bitsperpixel = 16,
- }, {
- .fourcc = V4L2_PIX_FMT_VYUY,
- .code = MEDIA_BUS_FMT_VYUY8_2X8,
- .bitsperpixel = 16,
- }, {
- .fourcc = V4L2_PIX_FMT_SBGGR8,
- .code = MEDIA_BUS_FMT_SBGGR8_1X8,
- .bitsperpixel = 8,
- }, {
- .fourcc = V4L2_PIX_FMT_SGBRG8,
- .code = MEDIA_BUS_FMT_SGBRG8_1X8,
- .bitsperpixel = 8,
- }, {
- .fourcc = V4L2_PIX_FMT_SGRBG8,
- .code = MEDIA_BUS_FMT_SGRBG8_1X8,
- .bitsperpixel = 8,
- }, {
- .fourcc = V4L2_PIX_FMT_SRGGB8,
- .code = MEDIA_BUS_FMT_SRGGB8_1X8,
- .bitsperpixel = 8,
- }, {
- .fourcc = V4L2_PIX_FMT_RGB565,
- .code = MEDIA_BUS_FMT_RGB565_2X8_LE,
- .bitsperpixel = 16,
- }, {
- .fourcc = V4L2_PIX_FMT_RGB565X,
- .code = MEDIA_BUS_FMT_RGB565_2X8_BE,
- .bitsperpixel = 16,
- },
-};
-
-static int __subdev_get_format(struct vpfe_device *vpfe,
- struct v4l2_mbus_framefmt *fmt);
-static int vpfe_calc_format_size(struct vpfe_device *vpfe,
- const struct vpfe_fmt *fmt,
- struct v4l2_format *f);
-
-static struct vpfe_fmt *find_format_by_code(struct vpfe_device *vpfe,
- unsigned int code)
-{
- struct vpfe_fmt *fmt;
- unsigned int k;
-
- for (k = 0; k < vpfe->num_active_fmt; k++) {
- fmt = vpfe->active_fmt[k];
- if (fmt->code == code)
- return fmt;
- }
-
- return NULL;
-}
-
-static struct vpfe_fmt *find_format_by_pix(struct vpfe_device *vpfe,
- unsigned int pixelformat)
-{
- struct vpfe_fmt *fmt;
- unsigned int k;
-
- for (k = 0; k < vpfe->num_active_fmt; k++) {
- fmt = vpfe->active_fmt[k];
- if (fmt->fourcc == pixelformat)
- return fmt;
- }
-
- return NULL;
-}
-
-static unsigned int __get_bytesperpixel(struct vpfe_device *vpfe,
- const struct vpfe_fmt *fmt)
-{
- struct vpfe_subdev_info *sdinfo = vpfe->current_subdev;
- unsigned int bus_width = sdinfo->vpfe_param.bus_width;
- u32 bpp, bus_width_bytes, clocksperpixel;
-
- bus_width_bytes = ALIGN(bus_width, 8) >> 3;
- clocksperpixel = DIV_ROUND_UP(fmt->bitsperpixel, bus_width);
- bpp = clocksperpixel * bus_width_bytes;
-
- return bpp;
-}
-
-/* Print Four-character-code (FOURCC) */
-static char *print_fourcc(u32 fmt)
-{
- static char code[5];
-
- code[0] = (unsigned char)(fmt & 0xff);
- code[1] = (unsigned char)((fmt >> 8) & 0xff);
- code[2] = (unsigned char)((fmt >> 16) & 0xff);
- code[3] = (unsigned char)((fmt >> 24) & 0xff);
- code[4] = '\0';
-
- return code;
-}
-
-static inline u32 vpfe_reg_read(struct vpfe_ccdc *ccdc, u32 offset)
-{
- return ioread32(ccdc->ccdc_cfg.base_addr + offset);
-}
-
-static inline void vpfe_reg_write(struct vpfe_ccdc *ccdc, u32 val, u32 offset)
-{
- iowrite32(val, ccdc->ccdc_cfg.base_addr + offset);
-}
-
-static inline struct vpfe_device *to_vpfe(struct vpfe_ccdc *ccdc)
-{
- return container_of(ccdc, struct vpfe_device, ccdc);
-}
-
-static inline
-struct vpfe_cap_buffer *to_vpfe_buffer(struct vb2_v4l2_buffer *vb)
-{
- return container_of(vb, struct vpfe_cap_buffer, vb);
-}
-
-static inline void vpfe_pcr_enable(struct vpfe_ccdc *ccdc, int flag)
-{
- vpfe_reg_write(ccdc, !!flag, VPFE_PCR);
-}
-
-static void vpfe_config_enable(struct vpfe_ccdc *ccdc, int flag)
-{
- unsigned int cfg;
-
- if (!flag) {
- cfg = vpfe_reg_read(ccdc, VPFE_CONFIG);
- cfg &= ~(VPFE_CONFIG_EN_ENABLE << VPFE_CONFIG_EN_SHIFT);
- } else {
- cfg = VPFE_CONFIG_EN_ENABLE << VPFE_CONFIG_EN_SHIFT;
- }
-
- vpfe_reg_write(ccdc, cfg, VPFE_CONFIG);
-}
-
-static void vpfe_ccdc_setwin(struct vpfe_ccdc *ccdc,
- struct v4l2_rect *image_win,
- enum ccdc_frmfmt frm_fmt,
- int bpp)
-{
- int horz_start, horz_nr_pixels;
- int vert_start, vert_nr_lines;
- int val, mid_img;
-
- /*
- * ppc - per pixel count. indicates how many pixels per cell
- * output to SDRAM. example, for ycbcr, it is one y and one c, so 2.
- * raw capture this is 1
- */
- horz_start = image_win->left * bpp;
- horz_nr_pixels = (image_win->width * bpp) - 1;
- vpfe_reg_write(ccdc, (horz_start << VPFE_HORZ_INFO_SPH_SHIFT) |
- horz_nr_pixels, VPFE_HORZ_INFO);
-
- vert_start = image_win->top;
-
- if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
- vert_nr_lines = (image_win->height >> 1) - 1;
- vert_start >>= 1;
- /* configure VDINT0 */
- val = (vert_start << VPFE_VDINT_VDINT0_SHIFT);
- } else {
- vert_nr_lines = image_win->height - 1;
- /*
- * configure VDINT0 and VDINT1. VDINT1 will be at half
- * of image height
- */
- mid_img = vert_start + (image_win->height / 2);
- val = (vert_start << VPFE_VDINT_VDINT0_SHIFT) |
- (mid_img & VPFE_VDINT_VDINT1_MASK);
- }
-
- vpfe_reg_write(ccdc, val, VPFE_VDINT);
-
- vpfe_reg_write(ccdc, (vert_start << VPFE_VERT_START_SLV0_SHIFT) |
- vert_start, VPFE_VERT_START);
- vpfe_reg_write(ccdc, vert_nr_lines, VPFE_VERT_LINES);
-}
-
-static void vpfe_reg_dump(struct vpfe_ccdc *ccdc)
-{
- struct vpfe_device *vpfe = to_vpfe(ccdc);
-
- vpfe_dbg(3, vpfe, "ALAW: 0x%x\n", vpfe_reg_read(ccdc, VPFE_ALAW));
- vpfe_dbg(3, vpfe, "CLAMP: 0x%x\n", vpfe_reg_read(ccdc, VPFE_CLAMP));
- vpfe_dbg(3, vpfe, "DCSUB: 0x%x\n", vpfe_reg_read(ccdc, VPFE_DCSUB));
- vpfe_dbg(3, vpfe, "BLKCMP: 0x%x\n", vpfe_reg_read(ccdc, VPFE_BLKCMP));
- vpfe_dbg(3, vpfe, "COLPTN: 0x%x\n", vpfe_reg_read(ccdc, VPFE_COLPTN));
- vpfe_dbg(3, vpfe, "SDOFST: 0x%x\n", vpfe_reg_read(ccdc, VPFE_SDOFST));
- vpfe_dbg(3, vpfe, "SYN_MODE: 0x%x\n",
- vpfe_reg_read(ccdc, VPFE_SYNMODE));
- vpfe_dbg(3, vpfe, "HSIZE_OFF: 0x%x\n",
- vpfe_reg_read(ccdc, VPFE_HSIZE_OFF));
- vpfe_dbg(3, vpfe, "HORZ_INFO: 0x%x\n",
- vpfe_reg_read(ccdc, VPFE_HORZ_INFO));
- vpfe_dbg(3, vpfe, "VERT_START: 0x%x\n",
- vpfe_reg_read(ccdc, VPFE_VERT_START));
- vpfe_dbg(3, vpfe, "VERT_LINES: 0x%x\n",
- vpfe_reg_read(ccdc, VPFE_VERT_LINES));
-}
-
-static int
-vpfe_ccdc_validate_param(struct vpfe_ccdc *ccdc,
- struct vpfe_ccdc_config_params_raw *ccdcparam)
-{
- struct vpfe_device *vpfe = to_vpfe(ccdc);
- u8 max_gamma, max_data;
-
- if (!ccdcparam->alaw.enable)
- return 0;
-
- max_gamma = ccdc_gamma_width_max_bit(ccdcparam->alaw.gamma_wd);
- max_data = ccdc_data_size_max_bit(ccdcparam->data_sz);
-
- if (ccdcparam->alaw.gamma_wd > VPFE_CCDC_GAMMA_BITS_09_0 ||
- ccdcparam->data_sz > VPFE_CCDC_DATA_8BITS ||
- max_gamma > max_data) {
- vpfe_dbg(1, vpfe, "Invalid data line select\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static void
-vpfe_ccdc_update_raw_params(struct vpfe_ccdc *ccdc,
- struct vpfe_ccdc_config_params_raw *raw_params)
-{
- struct vpfe_ccdc_config_params_raw *config_params =
- &ccdc->ccdc_cfg.bayer.config_params;
-
- *config_params = *raw_params;
-}
-
-/*
- * vpfe_ccdc_restore_defaults()
- * This function will write defaults to all CCDC registers
- */
-static void vpfe_ccdc_restore_defaults(struct vpfe_ccdc *ccdc)
-{
- int i;
-
- /* Disable CCDC */
- vpfe_pcr_enable(ccdc, 0);
-
- /* set all registers to default value */
- for (i = 4; i <= 0x94; i += 4)
- vpfe_reg_write(ccdc, 0, i);
-
- vpfe_reg_write(ccdc, VPFE_NO_CULLING, VPFE_CULLING);
- vpfe_reg_write(ccdc, VPFE_CCDC_GAMMA_BITS_11_2, VPFE_ALAW);
-}
-
-static int vpfe_ccdc_close(struct vpfe_ccdc *ccdc, struct device *dev)
-{
- struct vpfe_device *vpfe = to_vpfe(ccdc);
- u32 dma_cntl, pcr;
-
- pcr = vpfe_reg_read(ccdc, VPFE_PCR);
- if (pcr)
- vpfe_dbg(1, vpfe, "VPFE_PCR is still set (%x)", pcr);
-
- dma_cntl = vpfe_reg_read(ccdc, VPFE_DMA_CNTL);
- if ((dma_cntl & VPFE_DMA_CNTL_OVERFLOW))
- vpfe_dbg(1, vpfe, "VPFE_DMA_CNTL_OVERFLOW is still set (%x)",
- dma_cntl);
-
- /* Disable CCDC by resetting all register to default POR values */
- vpfe_ccdc_restore_defaults(ccdc);
-
- /* Disabled the module at the CONFIG level */
- vpfe_config_enable(ccdc, 0);
-
- pm_runtime_put_sync(dev);
- return 0;
-}
-
-static int vpfe_ccdc_set_params(struct vpfe_ccdc *ccdc, void __user *params)
-{
- struct vpfe_device *vpfe = to_vpfe(ccdc);
- struct vpfe_ccdc_config_params_raw raw_params;
- int x;
-
- if (ccdc->ccdc_cfg.if_type != VPFE_RAW_BAYER)
- return -EINVAL;
-
- x = copy_from_user(&raw_params, params, sizeof(raw_params));
- if (x) {
- vpfe_dbg(1, vpfe,
- "%s: error in copying ccdc params, %d\n",
- __func__, x);
- return -EFAULT;
- }
-
- if (!vpfe_ccdc_validate_param(ccdc, &raw_params)) {
- vpfe_ccdc_update_raw_params(ccdc, &raw_params);
- return 0;
- }
-
- return -EINVAL;
-}
-
-/*
- * vpfe_ccdc_config_ycbcr()
- * This function will configure CCDC for YCbCr video capture
- */
-static void vpfe_ccdc_config_ycbcr(struct vpfe_ccdc *ccdc)
-{
- struct ccdc_params_ycbcr *params = &ccdc->ccdc_cfg.ycbcr;
- u32 syn_mode;
-
- /*
- * first restore the CCDC registers to default values
- * This is important since we assume default values to be set in
- * a lot of registers that we didn't touch
- */
- vpfe_ccdc_restore_defaults(ccdc);
-
- /*
- * configure pixel format, frame format, configure video frame
- * format, enable output to SDRAM, enable internal timing generator
- * and 8bit pack mode
- */
- syn_mode = (((params->pix_fmt & VPFE_SYN_MODE_INPMOD_MASK) <<
- VPFE_SYN_MODE_INPMOD_SHIFT) |
- ((params->frm_fmt & VPFE_SYN_FLDMODE_MASK) <<
- VPFE_SYN_FLDMODE_SHIFT) | VPFE_VDHDEN_ENABLE |
- VPFE_WEN_ENABLE | VPFE_DATA_PACK_ENABLE);
-
- /* setup BT.656 sync mode */
- if (params->bt656_enable) {
- vpfe_reg_write(ccdc, VPFE_REC656IF_BT656_EN, VPFE_REC656IF);
-
- /*
- * configure the FID, VD, HD pin polarity,
- * fld,hd pol positive, vd negative, 8-bit data
- */
- syn_mode |= VPFE_SYN_MODE_VD_POL_NEGATIVE;
- if (ccdc->ccdc_cfg.if_type == VPFE_BT656_10BIT)
- syn_mode |= VPFE_SYN_MODE_10BITS;
- else
- syn_mode |= VPFE_SYN_MODE_8BITS;
- } else {
- /* y/c external sync mode */
- syn_mode |= (((params->fid_pol & VPFE_FID_POL_MASK) <<
- VPFE_FID_POL_SHIFT) |
- ((params->hd_pol & VPFE_HD_POL_MASK) <<
- VPFE_HD_POL_SHIFT) |
- ((params->vd_pol & VPFE_VD_POL_MASK) <<
- VPFE_VD_POL_SHIFT));
- }
- vpfe_reg_write(ccdc, syn_mode, VPFE_SYNMODE);
-
- /* configure video window */
- vpfe_ccdc_setwin(ccdc, ¶ms->win,
- params->frm_fmt, params->bytesperpixel);
-
- /*
- * configure the order of y cb cr in SDRAM, and disable latch
- * internal register on vsync
- */
- if (ccdc->ccdc_cfg.if_type == VPFE_BT656_10BIT)
- vpfe_reg_write(ccdc,
- (params->pix_order << VPFE_CCDCFG_Y8POS_SHIFT) |
- VPFE_LATCH_ON_VSYNC_DISABLE |
- VPFE_CCDCFG_BW656_10BIT, VPFE_CCDCFG);
- else
- vpfe_reg_write(ccdc,
- (params->pix_order << VPFE_CCDCFG_Y8POS_SHIFT) |
- VPFE_LATCH_ON_VSYNC_DISABLE, VPFE_CCDCFG);
-
- /*
- * configure the horizontal line offset. This should be a
- * on 32 byte boundary. So clear LSB 5 bits
- */
- vpfe_reg_write(ccdc, params->bytesperline, VPFE_HSIZE_OFF);
-
- /* configure the memory line offset */
- if (params->buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED)
- /* two fields are interleaved in memory */
- vpfe_reg_write(ccdc, VPFE_SDOFST_FIELD_INTERLEAVED,
- VPFE_SDOFST);
-}
-
-static void
-vpfe_ccdc_config_black_clamp(struct vpfe_ccdc *ccdc,
- struct vpfe_ccdc_black_clamp *bclamp)
-{
- u32 val;
-
- if (!bclamp->enable) {
- /* configure DCSub */
- val = (bclamp->dc_sub) & VPFE_BLK_DC_SUB_MASK;
- vpfe_reg_write(ccdc, val, VPFE_DCSUB);
- vpfe_reg_write(ccdc, VPFE_CLAMP_DEFAULT_VAL, VPFE_CLAMP);
- return;
- }
- /*
- * Configure gain, Start pixel, No of line to be avg,
- * No of pixel/line to be avg, & Enable the Black clamping
- */
- val = ((bclamp->sgain & VPFE_BLK_SGAIN_MASK) |
- ((bclamp->start_pixel & VPFE_BLK_ST_PXL_MASK) <<
- VPFE_BLK_ST_PXL_SHIFT) |
- ((bclamp->sample_ln & VPFE_BLK_SAMPLE_LINE_MASK) <<
- VPFE_BLK_SAMPLE_LINE_SHIFT) |
- ((bclamp->sample_pixel & VPFE_BLK_SAMPLE_LN_MASK) <<
- VPFE_BLK_SAMPLE_LN_SHIFT) | VPFE_BLK_CLAMP_ENABLE);
- vpfe_reg_write(ccdc, val, VPFE_CLAMP);
- /* If Black clamping is enable then make dcsub 0 */
- vpfe_reg_write(ccdc, VPFE_DCSUB_DEFAULT_VAL, VPFE_DCSUB);
-}
-
-static void
-vpfe_ccdc_config_black_compense(struct vpfe_ccdc *ccdc,
- struct vpfe_ccdc_black_compensation *bcomp)
-{
- u32 val;
-
- val = ((bcomp->b & VPFE_BLK_COMP_MASK) |
- ((bcomp->gb & VPFE_BLK_COMP_MASK) <<
- VPFE_BLK_COMP_GB_COMP_SHIFT) |
- ((bcomp->gr & VPFE_BLK_COMP_MASK) <<
- VPFE_BLK_COMP_GR_COMP_SHIFT) |
- ((bcomp->r & VPFE_BLK_COMP_MASK) <<
- VPFE_BLK_COMP_R_COMP_SHIFT));
- vpfe_reg_write(ccdc, val, VPFE_BLKCMP);
-}
-
-/*
- * vpfe_ccdc_config_raw()
- * This function will configure CCDC for Raw capture mode
- */
-static void vpfe_ccdc_config_raw(struct vpfe_ccdc *ccdc)
-{
- struct vpfe_device *vpfe = to_vpfe(ccdc);
- struct vpfe_ccdc_config_params_raw *config_params =
- &ccdc->ccdc_cfg.bayer.config_params;
- struct ccdc_params_raw *params = &ccdc->ccdc_cfg.bayer;
- unsigned int syn_mode;
- unsigned int val;
-
- /* Reset CCDC */
- vpfe_ccdc_restore_defaults(ccdc);
-
- /* Disable latching function registers on VSYNC */
- vpfe_reg_write(ccdc, VPFE_LATCH_ON_VSYNC_DISABLE, VPFE_CCDCFG);
-
- /*
- * Configure the vertical sync polarity(SYN_MODE.VDPOL),
- * horizontal sync polarity (SYN_MODE.HDPOL), frame id polarity
- * (SYN_MODE.FLDPOL), frame format(progressive or interlace),
- * data size(SYNMODE.DATSIZ), &pixel format (Input mode), output
- * SDRAM, enable internal timing generator
- */
- syn_mode = (((params->vd_pol & VPFE_VD_POL_MASK) << VPFE_VD_POL_SHIFT) |
- ((params->hd_pol & VPFE_HD_POL_MASK) << VPFE_HD_POL_SHIFT) |
- ((params->fid_pol & VPFE_FID_POL_MASK) <<
- VPFE_FID_POL_SHIFT) | ((params->frm_fmt &
- VPFE_FRM_FMT_MASK) << VPFE_FRM_FMT_SHIFT) |
- ((config_params->data_sz & VPFE_DATA_SZ_MASK) <<
- VPFE_DATA_SZ_SHIFT) | ((params->pix_fmt &
- VPFE_PIX_FMT_MASK) << VPFE_PIX_FMT_SHIFT) |
- VPFE_WEN_ENABLE | VPFE_VDHDEN_ENABLE);
-
- /* Enable and configure aLaw register if needed */
- if (config_params->alaw.enable) {
- val = ((config_params->alaw.gamma_wd &
- VPFE_ALAW_GAMMA_WD_MASK) | VPFE_ALAW_ENABLE);
- vpfe_reg_write(ccdc, val, VPFE_ALAW);
- vpfe_dbg(3, vpfe, "\nWriting 0x%x to ALAW...\n", val);
- }
-
- /* Configure video window */
- vpfe_ccdc_setwin(ccdc, ¶ms->win, params->frm_fmt,
- params->bytesperpixel);
-
- /* Configure Black Clamp */
- vpfe_ccdc_config_black_clamp(ccdc, &config_params->blk_clamp);
-
- /* Configure Black level compensation */
- vpfe_ccdc_config_black_compense(ccdc, &config_params->blk_comp);
-
- /* If data size is 8 bit then pack the data */
- if ((config_params->data_sz == VPFE_CCDC_DATA_8BITS) ||
- config_params->alaw.enable)
- syn_mode |= VPFE_DATA_PACK_ENABLE;
-
- /*
- * Configure Horizontal offset register. If pack 8 is enabled then
- * 1 pixel will take 1 byte
- */
- vpfe_reg_write(ccdc, params->bytesperline, VPFE_HSIZE_OFF);
-
- vpfe_dbg(3, vpfe, "Writing %d (%x) to HSIZE_OFF\n",
- params->bytesperline, params->bytesperline);
-
- /* Set value for SDOFST */
- if (params->frm_fmt == CCDC_FRMFMT_INTERLACED) {
- if (params->image_invert_enable) {
- /* For interlace inverse mode */
- vpfe_reg_write(ccdc, VPFE_INTERLACED_IMAGE_INVERT,
- VPFE_SDOFST);
- } else {
- /* For interlace non inverse mode */
- vpfe_reg_write(ccdc, VPFE_INTERLACED_NO_IMAGE_INVERT,
- VPFE_SDOFST);
- }
- } else if (params->frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
- vpfe_reg_write(ccdc, VPFE_PROGRESSIVE_NO_IMAGE_INVERT,
- VPFE_SDOFST);
- }
-
- vpfe_reg_write(ccdc, syn_mode, VPFE_SYNMODE);
-
- vpfe_reg_dump(ccdc);
-}
-
-static inline int
-vpfe_ccdc_set_buftype(struct vpfe_ccdc *ccdc,
- enum ccdc_buftype buf_type)
-{
- if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
- ccdc->ccdc_cfg.bayer.buf_type = buf_type;
- else
- ccdc->ccdc_cfg.ycbcr.buf_type = buf_type;
-
- return 0;
-}
-
-static inline enum ccdc_buftype vpfe_ccdc_get_buftype(struct vpfe_ccdc *ccdc)
-{
- if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
- return ccdc->ccdc_cfg.bayer.buf_type;
-
- return ccdc->ccdc_cfg.ycbcr.buf_type;
-}
-
-static int vpfe_ccdc_set_pixel_format(struct vpfe_ccdc *ccdc, u32 pixfmt)
-{
- struct vpfe_device *vpfe = to_vpfe(ccdc);
-
- vpfe_dbg(1, vpfe, "%s: if_type: %d, pixfmt:%s\n",
- __func__, ccdc->ccdc_cfg.if_type, print_fourcc(pixfmt));
-
- if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
- ccdc->ccdc_cfg.bayer.pix_fmt = CCDC_PIXFMT_RAW;
- /*
- * Need to clear it in case it was left on
- * after the last capture.
- */
- ccdc->ccdc_cfg.bayer.config_params.alaw.enable = 0;
-
- switch (pixfmt) {
- case V4L2_PIX_FMT_SBGGR8:
- ccdc->ccdc_cfg.bayer.config_params.alaw.enable = 1;
- break;
-
- case V4L2_PIX_FMT_YUYV:
- case V4L2_PIX_FMT_UYVY:
- case V4L2_PIX_FMT_YUV420:
- case V4L2_PIX_FMT_NV12:
- case V4L2_PIX_FMT_RGB565X:
- break;
-
- case V4L2_PIX_FMT_SBGGR16:
- default:
- return -EINVAL;
- }
- } else {
- switch (pixfmt) {
- case V4L2_PIX_FMT_YUYV:
- ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_YCBYCR;
- break;
-
- case V4L2_PIX_FMT_UYVY:
- ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
- break;
-
- default:
- return -EINVAL;
- }
- }
-
- return 0;
-}
-
-static u32 vpfe_ccdc_get_pixel_format(struct vpfe_ccdc *ccdc)
-{
- u32 pixfmt;
-
- if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
- pixfmt = V4L2_PIX_FMT_YUYV;
- } else {
- if (ccdc->ccdc_cfg.ycbcr.pix_order == CCDC_PIXORDER_YCBYCR)
- pixfmt = V4L2_PIX_FMT_YUYV;
- else
- pixfmt = V4L2_PIX_FMT_UYVY;
- }
-
- return pixfmt;
-}
-
-static int
-vpfe_ccdc_set_image_window(struct vpfe_ccdc *ccdc,
- struct v4l2_rect *win, unsigned int bpp)
-{
- if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
- ccdc->ccdc_cfg.bayer.win = *win;
- ccdc->ccdc_cfg.bayer.bytesperpixel = bpp;
- ccdc->ccdc_cfg.bayer.bytesperline = ALIGN(win->width * bpp, 32);
- } else {
- ccdc->ccdc_cfg.ycbcr.win = *win;
- ccdc->ccdc_cfg.ycbcr.bytesperpixel = bpp;
- ccdc->ccdc_cfg.ycbcr.bytesperline = ALIGN(win->width * bpp, 32);
- }
-
- return 0;
-}
-
-static inline void
-vpfe_ccdc_get_image_window(struct vpfe_ccdc *ccdc,
- struct v4l2_rect *win)
-{
- if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
- *win = ccdc->ccdc_cfg.bayer.win;
- else
- *win = ccdc->ccdc_cfg.ycbcr.win;
-}
-
-static inline unsigned int vpfe_ccdc_get_line_length(struct vpfe_ccdc *ccdc)
-{
- if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
- return ccdc->ccdc_cfg.bayer.bytesperline;
-
- return ccdc->ccdc_cfg.ycbcr.bytesperline;
-}
-
-static inline int
-vpfe_ccdc_set_frame_format(struct vpfe_ccdc *ccdc,
- enum ccdc_frmfmt frm_fmt)
-{
- if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
- ccdc->ccdc_cfg.bayer.frm_fmt = frm_fmt;
- else
- ccdc->ccdc_cfg.ycbcr.frm_fmt = frm_fmt;
-
- return 0;
-}
-
-static inline enum ccdc_frmfmt
-vpfe_ccdc_get_frame_format(struct vpfe_ccdc *ccdc)
-{
- if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
- return ccdc->ccdc_cfg.bayer.frm_fmt;
-
- return ccdc->ccdc_cfg.ycbcr.frm_fmt;
-}
-
-static inline int vpfe_ccdc_getfid(struct vpfe_ccdc *ccdc)
-{
- return (vpfe_reg_read(ccdc, VPFE_SYNMODE) >> 15) & 1;
-}
-
-static inline void vpfe_set_sdr_addr(struct vpfe_ccdc *ccdc, unsigned long addr)
-{
- vpfe_reg_write(ccdc, addr & 0xffffffe0, VPFE_SDR_ADDR);
-}
-
-static int vpfe_ccdc_set_hw_if_params(struct vpfe_ccdc *ccdc,
- struct vpfe_hw_if_param *params)
-{
- struct vpfe_device *vpfe = to_vpfe(ccdc);
-
- ccdc->ccdc_cfg.if_type = params->if_type;
-
- switch (params->if_type) {
- case VPFE_BT656:
- case VPFE_YCBCR_SYNC_16:
- case VPFE_YCBCR_SYNC_8:
- case VPFE_BT656_10BIT:
- ccdc->ccdc_cfg.ycbcr.vd_pol = params->vdpol;
- ccdc->ccdc_cfg.ycbcr.hd_pol = params->hdpol;
- break;
-
- case VPFE_RAW_BAYER:
- ccdc->ccdc_cfg.bayer.vd_pol = params->vdpol;
- ccdc->ccdc_cfg.bayer.hd_pol = params->hdpol;
- if (params->bus_width == 10)
- ccdc->ccdc_cfg.bayer.config_params.data_sz =
- VPFE_CCDC_DATA_10BITS;
- else
- ccdc->ccdc_cfg.bayer.config_params.data_sz =
- VPFE_CCDC_DATA_8BITS;
- vpfe_dbg(1, vpfe, "params.bus_width: %d\n",
- params->bus_width);
- vpfe_dbg(1, vpfe, "config_params.data_sz: %d\n",
- ccdc->ccdc_cfg.bayer.config_params.data_sz);
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static void vpfe_clear_intr(struct vpfe_ccdc *ccdc, int vdint)
-{
- unsigned int vpfe_int_status;
-
- vpfe_int_status = vpfe_reg_read(ccdc, VPFE_IRQ_STS);
-
- switch (vdint) {
- /* VD0 interrupt */
- case VPFE_VDINT0:
- vpfe_int_status &= ~VPFE_VDINT0;
- vpfe_int_status |= VPFE_VDINT0;
- break;
-
- /* VD1 interrupt */
- case VPFE_VDINT1:
- vpfe_int_status &= ~VPFE_VDINT1;
- vpfe_int_status |= VPFE_VDINT1;
- break;
-
- /* VD2 interrupt */
- case VPFE_VDINT2:
- vpfe_int_status &= ~VPFE_VDINT2;
- vpfe_int_status |= VPFE_VDINT2;
- break;
-
- /* Clear all interrupts */
- default:
- vpfe_int_status &= ~(VPFE_VDINT0 |
- VPFE_VDINT1 |
- VPFE_VDINT2);
- vpfe_int_status |= (VPFE_VDINT0 |
- VPFE_VDINT1 |
- VPFE_VDINT2);
- break;
- }
- /* Clear specific VDINT from the status register */
- vpfe_reg_write(ccdc, vpfe_int_status, VPFE_IRQ_STS);
-
- vpfe_int_status = vpfe_reg_read(ccdc, VPFE_IRQ_STS);
-
- /* Acknowledge that we are done with all interrupts */
- vpfe_reg_write(ccdc, 1, VPFE_IRQ_EOI);
-}
-
-static void vpfe_ccdc_config_defaults(struct vpfe_ccdc *ccdc)
-{
- ccdc->ccdc_cfg.if_type = VPFE_RAW_BAYER;
-
- ccdc->ccdc_cfg.ycbcr.pix_fmt = CCDC_PIXFMT_YCBCR_8BIT;
- ccdc->ccdc_cfg.ycbcr.frm_fmt = CCDC_FRMFMT_INTERLACED;
- ccdc->ccdc_cfg.ycbcr.fid_pol = VPFE_PINPOL_POSITIVE;
- ccdc->ccdc_cfg.ycbcr.vd_pol = VPFE_PINPOL_POSITIVE;
- ccdc->ccdc_cfg.ycbcr.hd_pol = VPFE_PINPOL_POSITIVE;
- ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
- ccdc->ccdc_cfg.ycbcr.buf_type = CCDC_BUFTYPE_FLD_INTERLEAVED;
-
- ccdc->ccdc_cfg.ycbcr.win.left = 0;
- ccdc->ccdc_cfg.ycbcr.win.top = 0;
- ccdc->ccdc_cfg.ycbcr.win.width = 720;
- ccdc->ccdc_cfg.ycbcr.win.height = 576;
- ccdc->ccdc_cfg.ycbcr.bt656_enable = 1;
-
- ccdc->ccdc_cfg.bayer.pix_fmt = CCDC_PIXFMT_RAW;
- ccdc->ccdc_cfg.bayer.frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
- ccdc->ccdc_cfg.bayer.fid_pol = VPFE_PINPOL_POSITIVE;
- ccdc->ccdc_cfg.bayer.vd_pol = VPFE_PINPOL_POSITIVE;
- ccdc->ccdc_cfg.bayer.hd_pol = VPFE_PINPOL_POSITIVE;
-
- ccdc->ccdc_cfg.bayer.win.left = 0;
- ccdc->ccdc_cfg.bayer.win.top = 0;
- ccdc->ccdc_cfg.bayer.win.width = 800;
- ccdc->ccdc_cfg.bayer.win.height = 600;
- ccdc->ccdc_cfg.bayer.config_params.data_sz = VPFE_CCDC_DATA_8BITS;
- ccdc->ccdc_cfg.bayer.config_params.alaw.gamma_wd =
- VPFE_CCDC_GAMMA_BITS_09_0;
-}
-
-/*
- * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings
- */
-static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe,
- struct v4l2_format *f)
-{
- struct v4l2_rect image_win;
- enum ccdc_buftype buf_type;
- enum ccdc_frmfmt frm_fmt;
-
- memset(f, 0, sizeof(*f));
- f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- vpfe_ccdc_get_image_window(&vpfe->ccdc, &image_win);
- f->fmt.pix.width = image_win.width;
- f->fmt.pix.height = image_win.height;
- f->fmt.pix.bytesperline = vpfe_ccdc_get_line_length(&vpfe->ccdc);
- f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
- f->fmt.pix.height;
- buf_type = vpfe_ccdc_get_buftype(&vpfe->ccdc);
- f->fmt.pix.pixelformat = vpfe_ccdc_get_pixel_format(&vpfe->ccdc);
- frm_fmt = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
-
- if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
- f->fmt.pix.field = V4L2_FIELD_NONE;
- } else if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
- if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) {
- f->fmt.pix.field = V4L2_FIELD_INTERLACED;
- } else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED) {
- f->fmt.pix.field = V4L2_FIELD_SEQ_TB;
- } else {
- vpfe_err(vpfe, "Invalid buf_type\n");
- return -EINVAL;
- }
- } else {
- vpfe_err(vpfe, "Invalid frm_fmt\n");
- return -EINVAL;
- }
- return 0;
-}
-
-static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe)
-{
- enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED;
- u32 bpp;
- int ret = 0;
-
- vpfe_dbg(1, vpfe, "pixelformat: %s\n",
- print_fourcc(vpfe->fmt.fmt.pix.pixelformat));
-
- if (vpfe_ccdc_set_pixel_format(&vpfe->ccdc,
- vpfe->fmt.fmt.pix.pixelformat) < 0) {
- vpfe_err(vpfe, "couldn't set pix format in ccdc\n");
- return -EINVAL;
- }
-
- /* configure the image window */
- bpp = __get_bytesperpixel(vpfe, vpfe->current_vpfe_fmt);
- vpfe_ccdc_set_image_window(&vpfe->ccdc, &vpfe->crop, bpp);
-
- switch (vpfe->fmt.fmt.pix.field) {
- case V4L2_FIELD_INTERLACED:
- /* do nothing, since it is default */
- ret = vpfe_ccdc_set_buftype(
- &vpfe->ccdc,
- CCDC_BUFTYPE_FLD_INTERLEAVED);
- break;
-
- case V4L2_FIELD_NONE:
- frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
- /* buffer type only applicable for interlaced scan */
- break;
-
- case V4L2_FIELD_SEQ_TB:
- ret = vpfe_ccdc_set_buftype(
- &vpfe->ccdc,
- CCDC_BUFTYPE_FLD_SEPARATED);
- break;
-
- default:
- return -EINVAL;
- }
-
- if (ret)
- return ret;
-
- return vpfe_ccdc_set_frame_format(&vpfe->ccdc, frm_fmt);
-}
-
-/*
- * vpfe_config_image_format()
- * For a given standard, this functions sets up the default
- * pix format & crop values in the vpfe device and ccdc. It first
- * starts with defaults based values from the standard table.
- * It then checks if sub device supports get_fmt and then override the
- * values based on that.Sets crop values to match with scan resolution
- * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the
- * values in ccdc
- */
-static int vpfe_config_image_format(struct vpfe_device *vpfe,
- v4l2_std_id std_id)
-{
- struct vpfe_fmt *fmt;
- struct v4l2_mbus_framefmt mbus_fmt;
- int i, ret;
-
- for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) {
- if (vpfe_standards[i].std_id & std_id) {
- vpfe->std_info.active_pixels =
- vpfe_standards[i].width;
- vpfe->std_info.active_lines =
- vpfe_standards[i].height;
- vpfe->std_info.frame_format =
- vpfe_standards[i].frame_format;
- vpfe->std_index = i;
-
- break;
- }
- }
-
- if (i == ARRAY_SIZE(vpfe_standards)) {
- vpfe_err(vpfe, "standard not supported\n");
- return -EINVAL;
- }
-
- ret = __subdev_get_format(vpfe, &mbus_fmt);
- if (ret)
- return ret;
-
- fmt = find_format_by_code(vpfe, mbus_fmt.code);
- if (!fmt) {
- vpfe_dbg(3, vpfe, "mbus code format (0x%08x) not found.\n",
- mbus_fmt.code);
- return -EINVAL;
- }
-
- /* Save current subdev format */
- v4l2_fill_pix_format(&vpfe->fmt.fmt.pix, &mbus_fmt);
- vpfe->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- vpfe->fmt.fmt.pix.pixelformat = fmt->fourcc;
- vpfe_calc_format_size(vpfe, fmt, &vpfe->fmt);
- vpfe->current_vpfe_fmt = fmt;
-
- /* Update the crop window based on found values */
- vpfe->crop.top = 0;
- vpfe->crop.left = 0;
- vpfe->crop.width = mbus_fmt.width;
- vpfe->crop.height = mbus_fmt.height;
-
- return vpfe_config_ccdc_image_format(vpfe);
-}
-
-static int vpfe_initialize_device(struct vpfe_device *vpfe)
-{
- struct vpfe_subdev_info *sdinfo;
- int ret;
-
- sdinfo = &vpfe->cfg->sub_devs[0];
- sdinfo->sd = vpfe->sd[0];
- vpfe->current_input = 0;
- vpfe->std_index = 0;
- /* Configure the default format information */
- ret = vpfe_config_image_format(vpfe,
- vpfe_standards[vpfe->std_index].std_id);
- if (ret)
- return ret;
-
- ret = pm_runtime_resume_and_get(vpfe->pdev);
- if (ret < 0)
- return ret;
-
- vpfe_config_enable(&vpfe->ccdc, 1);
-
- vpfe_ccdc_restore_defaults(&vpfe->ccdc);
-
- /* Clear all VPFE interrupts */
- vpfe_clear_intr(&vpfe->ccdc, -1);
-
- return ret;
-}
-
-/*
- * vpfe_release : This function is based on the vb2_fop_release
- * helper function.
- * It has been augmented to handle module power management,
- * by disabling/enabling h/w module fcntl clock when necessary.
- */
-static int vpfe_release(struct file *file)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- bool fh_singular;
- int ret;
-
- mutex_lock(&vpfe->lock);
-
- /* Save the singular status before we call the clean-up helper */
- fh_singular = v4l2_fh_is_singular_file(file);
-
- /* the release helper will cleanup any on-going streaming */
- ret = _vb2_fop_release(file, NULL);
-
- /*
- * If this was the last open file.
- * Then de-initialize hw module.
- */
- if (fh_singular)
- vpfe_ccdc_close(&vpfe->ccdc, vpfe->pdev);
-
- mutex_unlock(&vpfe->lock);
-
- return ret;
-}
-
-/*
- * vpfe_open : This function is based on the v4l2_fh_open helper function.
- * It has been augmented to handle module power management,
- * by disabling/enabling h/w module fcntl clock when necessary.
- */
-static int vpfe_open(struct file *file)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- int ret;
-
- mutex_lock(&vpfe->lock);
-
- ret = v4l2_fh_open(file);
- if (ret) {
- vpfe_err(vpfe, "v4l2_fh_open failed\n");
- goto unlock;
- }
-
- if (!v4l2_fh_is_singular_file(file))
- goto unlock;
-
- if (vpfe_initialize_device(vpfe)) {
- v4l2_fh_release(file);
- ret = -ENODEV;
- }
-
-unlock:
- mutex_unlock(&vpfe->lock);
- return ret;
-}
-
-/**
- * vpfe_schedule_next_buffer: set next buffer address for capture
- * @vpfe : ptr to vpfe device
- *
- * This function will get next buffer from the dma queue and
- * set the buffer address in the vpfe register for capture.
- * the buffer is marked active
- */
-static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe)
-{
- dma_addr_t addr;
-
- spin_lock(&vpfe->dma_queue_lock);
- if (list_empty(&vpfe->dma_queue)) {
- spin_unlock(&vpfe->dma_queue_lock);
- return;
- }
-
- vpfe->next_frm = list_entry(vpfe->dma_queue.next,
- struct vpfe_cap_buffer, list);
- list_del(&vpfe->next_frm->list);
- spin_unlock(&vpfe->dma_queue_lock);
-
- addr = vb2_dma_contig_plane_dma_addr(&vpfe->next_frm->vb.vb2_buf, 0);
- vpfe_set_sdr_addr(&vpfe->ccdc, addr);
-}
-
-static inline void vpfe_schedule_bottom_field(struct vpfe_device *vpfe)
-{
- dma_addr_t addr;
-
- addr = vb2_dma_contig_plane_dma_addr(&vpfe->next_frm->vb.vb2_buf, 0) +
- vpfe->field_off;
-
- vpfe_set_sdr_addr(&vpfe->ccdc, addr);
-}
-
-/*
- * vpfe_process_buffer_complete: process a completed buffer
- * @vpfe : ptr to vpfe device
- *
- * This function time stamp the buffer and mark it as DONE. It also
- * wake up any process waiting on the QUEUE and set the next buffer
- * as current
- */
-static inline void vpfe_process_buffer_complete(struct vpfe_device *vpfe)
-{
- vpfe->cur_frm->vb.vb2_buf.timestamp = ktime_get_ns();
- vpfe->cur_frm->vb.field = vpfe->fmt.fmt.pix.field;
- vpfe->cur_frm->vb.sequence = vpfe->sequence++;
- vb2_buffer_done(&vpfe->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
- vpfe->cur_frm = vpfe->next_frm;
-}
-
-static void vpfe_handle_interlaced_irq(struct vpfe_device *vpfe,
- enum v4l2_field field)
-{
- int fid;
-
- /* interlaced or TB capture check which field
- * we are in hardware
- */
- fid = vpfe_ccdc_getfid(&vpfe->ccdc);
-
- /* switch the software maintained field id */
- vpfe->field ^= 1;
- if (fid == vpfe->field) {
- /* we are in-sync here,continue */
- if (fid == 0) {
- /*
- * One frame is just being captured. If the
- * next frame is available, release the
- * current frame and move on
- */
- if (vpfe->cur_frm != vpfe->next_frm)
- vpfe_process_buffer_complete(vpfe);
-
- if (vpfe->stopping)
- return;
-
- /*
- * based on whether the two fields are stored
- * interleave or separately in memory,
- * reconfigure the CCDC memory address
- */
- if (field == V4L2_FIELD_SEQ_TB)
- vpfe_schedule_bottom_field(vpfe);
- } else {
- /*
- * if one field is just being captured configure
- * the next frame get the next frame from the empty
- * queue if no frame is available hold on to the
- * current buffer
- */
- if (vpfe->cur_frm == vpfe->next_frm)
- vpfe_schedule_next_buffer(vpfe);
- }
- } else if (fid == 0) {
- /*
- * out of sync. Recover from any hardware out-of-sync.
- * May loose one frame
- */
- vpfe->field = fid;
- }
-}
-
-/*
- * vpfe_isr : ISR handler for vpfe capture (VINT0)
- * @irq: irq number
- * @dev_id: dev_id ptr
- *
- * It changes status of the captured buffer, takes next buffer from the queue
- * and sets its address in VPFE registers
- */
-static irqreturn_t vpfe_isr(int irq, void *dev)
-{
- struct vpfe_device *vpfe = (struct vpfe_device *)dev;
- enum v4l2_field field = vpfe->fmt.fmt.pix.field;
- int intr_status, stopping = vpfe->stopping;
-
- intr_status = vpfe_reg_read(&vpfe->ccdc, VPFE_IRQ_STS);
-
- if (intr_status & VPFE_VDINT0) {
- if (field == V4L2_FIELD_NONE) {
- if (vpfe->cur_frm != vpfe->next_frm)
- vpfe_process_buffer_complete(vpfe);
- } else {
- vpfe_handle_interlaced_irq(vpfe, field);
- }
- if (stopping) {
- vpfe->stopping = false;
- complete(&vpfe->capture_stop);
- }
- }
-
- if (intr_status & VPFE_VDINT1 && !stopping) {
- if (field == V4L2_FIELD_NONE &&
- vpfe->cur_frm == vpfe->next_frm)
- vpfe_schedule_next_buffer(vpfe);
- }
-
- vpfe_clear_intr(&vpfe->ccdc, intr_status);
-
- return IRQ_HANDLED;
-}
-
-static inline void vpfe_detach_irq(struct vpfe_device *vpfe)
-{
- unsigned int intr = VPFE_VDINT0;
- enum ccdc_frmfmt frame_format;
-
- frame_format = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
- if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
- intr |= VPFE_VDINT1;
-
- vpfe_reg_write(&vpfe->ccdc, intr, VPFE_IRQ_EN_CLR);
-}
-
-static inline void vpfe_attach_irq(struct vpfe_device *vpfe)
-{
- unsigned int intr = VPFE_VDINT0;
- enum ccdc_frmfmt frame_format;
-
- frame_format = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
- if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
- intr |= VPFE_VDINT1;
-
- vpfe_reg_write(&vpfe->ccdc, intr, VPFE_IRQ_EN_SET);
-}
-
-static int vpfe_querycap(struct file *file, void *priv,
- struct v4l2_capability *cap)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
-
- strscpy(cap->driver, VPFE_MODULE_NAME, sizeof(cap->driver));
- strscpy(cap->card, "TI AM437x VPFE", sizeof(cap->card));
- snprintf(cap->bus_info, sizeof(cap->bus_info),
- "platform:%s", vpfe->v4l2_dev.name);
- return 0;
-}
-
-/* get the format set at output pad of the adjacent subdev */
-static int __subdev_get_format(struct vpfe_device *vpfe,
- struct v4l2_mbus_framefmt *fmt)
-{
- struct v4l2_subdev *sd = vpfe->current_subdev->sd;
- struct v4l2_subdev_format sd_fmt;
- struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
- int ret;
-
- sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
- sd_fmt.pad = 0;
-
- ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sd_fmt);
- if (ret)
- return ret;
-
- *fmt = *mbus_fmt;
-
- vpfe_dbg(1, vpfe, "%s: %dx%d code:%04X\n", __func__,
- fmt->width, fmt->height, fmt->code);
-
- return 0;
-}
-
-/* set the format at output pad of the adjacent subdev */
-static int __subdev_set_format(struct vpfe_device *vpfe,
- struct v4l2_mbus_framefmt *fmt)
-{
- struct v4l2_subdev *sd = vpfe->current_subdev->sd;
- struct v4l2_subdev_format sd_fmt;
- struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
- int ret;
-
- sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
- sd_fmt.pad = 0;
- *mbus_fmt = *fmt;
-
- ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sd_fmt);
- if (ret)
- return ret;
-
- vpfe_dbg(1, vpfe, "%s %dx%d code:%04X\n", __func__,
- fmt->width, fmt->height, fmt->code);
-
- return 0;
-}
-
-static int vpfe_calc_format_size(struct vpfe_device *vpfe,
- const struct vpfe_fmt *fmt,
- struct v4l2_format *f)
-{
- u32 bpp;
-
- if (!fmt) {
- vpfe_dbg(3, vpfe, "No vpfe_fmt provided!\n");
- return -EINVAL;
- }
-
- bpp = __get_bytesperpixel(vpfe, fmt);
-
- /* pitch should be 32 bytes aligned */
- f->fmt.pix.bytesperline = ALIGN(f->fmt.pix.width * bpp, 32);
- f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
- f->fmt.pix.height;
-
- vpfe_dbg(3, vpfe, "%s: fourcc: %s size: %dx%d bpl:%d img_size:%d\n",
- __func__, print_fourcc(f->fmt.pix.pixelformat),
- f->fmt.pix.width, f->fmt.pix.height,
- f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
-
- return 0;
-}
-
-static int vpfe_g_fmt(struct file *file, void *priv,
- struct v4l2_format *fmt)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
-
- *fmt = vpfe->fmt;
-
- return 0;
-}
-
-static int vpfe_enum_fmt(struct file *file, void *priv,
- struct v4l2_fmtdesc *f)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- struct vpfe_subdev_info *sdinfo;
- struct vpfe_fmt *fmt;
-
- sdinfo = vpfe->current_subdev;
- if (!sdinfo->sd)
- return -EINVAL;
-
- if (f->index >= vpfe->num_active_fmt)
- return -EINVAL;
-
- fmt = vpfe->active_fmt[f->index];
-
- f->pixelformat = fmt->fourcc;
-
- vpfe_dbg(1, vpfe, "%s: mbus index: %d code: %x pixelformat: %s\n",
- __func__, f->index, fmt->code, print_fourcc(fmt->fourcc));
-
- return 0;
-}
-
-static int vpfe_try_fmt(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- struct v4l2_subdev *sd = vpfe->current_subdev->sd;
- const struct vpfe_fmt *fmt;
- struct v4l2_subdev_frame_size_enum fse;
- int ret, found;
-
- fmt = find_format_by_pix(vpfe, f->fmt.pix.pixelformat);
- if (!fmt) {
- /* default to first entry */
- vpfe_dbg(3, vpfe, "Invalid pixel code: %x, default used instead\n",
- f->fmt.pix.pixelformat);
- fmt = vpfe->active_fmt[0];
- f->fmt.pix.pixelformat = fmt->fourcc;
- }
-
- f->fmt.pix.field = vpfe->fmt.fmt.pix.field;
-
- /* check for/find a valid width/height */
- ret = 0;
- found = false;
- fse.pad = 0;
- fse.code = fmt->code;
- fse.which = V4L2_SUBDEV_FORMAT_ACTIVE;
- for (fse.index = 0; ; fse.index++) {
- ret = v4l2_subdev_call(sd, pad, enum_frame_size,
- NULL, &fse);
- if (ret)
- break;
-
- if (f->fmt.pix.width == fse.max_width &&
- f->fmt.pix.height == fse.max_height) {
- found = true;
- break;
- } else if (f->fmt.pix.width >= fse.min_width &&
- f->fmt.pix.width <= fse.max_width &&
- f->fmt.pix.height >= fse.min_height &&
- f->fmt.pix.height <= fse.max_height) {
- found = true;
- break;
- }
- }
-
- if (!found) {
- /* use existing values as default */
- f->fmt.pix.width = vpfe->fmt.fmt.pix.width;
- f->fmt.pix.height = vpfe->fmt.fmt.pix.height;
- }
-
- /*
- * Use current colorspace for now, it will get
- * updated properly during s_fmt
- */
- f->fmt.pix.colorspace = vpfe->fmt.fmt.pix.colorspace;
- return vpfe_calc_format_size(vpfe, fmt, f);
-}
-
-static int vpfe_s_fmt(struct file *file, void *priv,
- struct v4l2_format *fmt)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- struct vpfe_fmt *f;
- struct v4l2_mbus_framefmt mbus_fmt;
- int ret;
-
- /* If streaming is started, return error */
- if (vb2_is_busy(&vpfe->buffer_queue)) {
- vpfe_err(vpfe, "%s device busy\n", __func__);
- return -EBUSY;
- }
-
- ret = vpfe_try_fmt(file, priv, fmt);
- if (ret < 0)
- return ret;
-
- f = find_format_by_pix(vpfe, fmt->fmt.pix.pixelformat);
-
- v4l2_fill_mbus_format(&mbus_fmt, &fmt->fmt.pix, f->code);
-
- ret = __subdev_set_format(vpfe, &mbus_fmt);
- if (ret)
- return ret;
-
- /* Just double check nothing has gone wrong */
- if (mbus_fmt.code != f->code) {
- vpfe_dbg(3, vpfe,
- "%s subdev changed format on us, this should not happen\n",
- __func__);
- return -EINVAL;
- }
-
- v4l2_fill_pix_format(&vpfe->fmt.fmt.pix, &mbus_fmt);
- vpfe->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- vpfe->fmt.fmt.pix.pixelformat = f->fourcc;
- vpfe_calc_format_size(vpfe, f, &vpfe->fmt);
- *fmt = vpfe->fmt;
- vpfe->current_vpfe_fmt = f;
-
- /* Update the crop window based on found values */
- vpfe->crop.width = fmt->fmt.pix.width;
- vpfe->crop.height = fmt->fmt.pix.height;
-
- /* set image capture parameters in the ccdc */
- return vpfe_config_ccdc_image_format(vpfe);
-}
-
-static int vpfe_enum_size(struct file *file, void *priv,
- struct v4l2_frmsizeenum *fsize)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- struct v4l2_subdev_frame_size_enum fse;
- struct v4l2_subdev *sd = vpfe->current_subdev->sd;
- struct vpfe_fmt *fmt;
- int ret;
-
- /* check for valid format */
- fmt = find_format_by_pix(vpfe, fsize->pixel_format);
- if (!fmt) {
- vpfe_dbg(3, vpfe, "Invalid pixel code: %x\n",
- fsize->pixel_format);
- return -EINVAL;
- }
-
- memset(fsize->reserved, 0x0, sizeof(fsize->reserved));
-
- memset(&fse, 0x0, sizeof(fse));
- fse.index = fsize->index;
- fse.pad = 0;
- fse.code = fmt->code;
- fse.which = V4L2_SUBDEV_FORMAT_ACTIVE;
- ret = v4l2_subdev_call(sd, pad, enum_frame_size, NULL, &fse);
- if (ret)
- return ret;
-
- vpfe_dbg(1, vpfe, "%s: index: %d code: %x W:[%d,%d] H:[%d,%d]\n",
- __func__, fse.index, fse.code, fse.min_width, fse.max_width,
- fse.min_height, fse.max_height);
-
- fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
- fsize->discrete.width = fse.max_width;
- fsize->discrete.height = fse.max_height;
-
- vpfe_dbg(1, vpfe, "%s: index: %d pixformat: %s size: %dx%d\n",
- __func__, fsize->index, print_fourcc(fsize->pixel_format),
- fsize->discrete.width, fsize->discrete.height);
-
- return 0;
-}
-
-/*
- * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a
- * given app input index
- */
-static int
-vpfe_get_subdev_input_index(struct vpfe_device *vpfe,
- int *subdev_index,
- int *subdev_input_index,
- int app_input_index)
-{
- int i, j = 0;
-
- for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
- if (app_input_index < (j + 1)) {
- *subdev_index = i;
- *subdev_input_index = app_input_index - j;
- return 0;
- }
- j++;
- }
- return -EINVAL;
-}
-
-/*
- * vpfe_get_app_input - Get app input index for a given subdev input index
- * driver stores the input index of the current sub device and translate it
- * when application request the current input
- */
-static int vpfe_get_app_input_index(struct vpfe_device *vpfe,
- int *app_input_index)
-{
- struct vpfe_config *cfg = vpfe->cfg;
- struct vpfe_subdev_info *sdinfo;
- struct i2c_client *client;
- struct i2c_client *curr_client;
- int i, j = 0;
-
- curr_client = v4l2_get_subdevdata(vpfe->current_subdev->sd);
- for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
- sdinfo = &cfg->sub_devs[i];
- client = v4l2_get_subdevdata(sdinfo->sd);
- if (client->addr == curr_client->addr &&
- client->adapter->nr == curr_client->adapter->nr) {
- if (vpfe->current_input >= 1)
- return -1;
- *app_input_index = j + vpfe->current_input;
- return 0;
- }
- j++;
- }
- return -EINVAL;
-}
-
-static int vpfe_enum_input(struct file *file, void *priv,
- struct v4l2_input *inp)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- struct vpfe_subdev_info *sdinfo;
- int subdev, index;
-
- if (vpfe_get_subdev_input_index(vpfe, &subdev, &index,
- inp->index) < 0) {
- vpfe_dbg(1, vpfe,
- "input information not found for the subdev\n");
- return -EINVAL;
- }
- sdinfo = &vpfe->cfg->sub_devs[subdev];
- *inp = sdinfo->inputs[index];
-
- return 0;
-}
-
-static int vpfe_g_input(struct file *file, void *priv, unsigned int *index)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
-
- return vpfe_get_app_input_index(vpfe, index);
-}
-
-/* Assumes caller is holding vpfe_dev->lock */
-static int vpfe_set_input(struct vpfe_device *vpfe, unsigned int index)
-{
- int subdev_index = 0, inp_index = 0;
- struct vpfe_subdev_info *sdinfo;
- struct vpfe_route *route;
- u32 input, output;
- int ret;
-
- /* If streaming is started, return error */
- if (vb2_is_busy(&vpfe->buffer_queue)) {
- vpfe_err(vpfe, "%s device busy\n", __func__);
- return -EBUSY;
- }
- ret = vpfe_get_subdev_input_index(vpfe,
- &subdev_index,
- &inp_index,
- index);
- if (ret < 0) {
- vpfe_err(vpfe, "invalid input index: %d\n", index);
- goto get_out;
- }
-
- sdinfo = &vpfe->cfg->sub_devs[subdev_index];
- sdinfo->sd = vpfe->sd[subdev_index];
- route = &sdinfo->routes[inp_index];
- if (route && sdinfo->can_route) {
- input = route->input;
- output = route->output;
- if (sdinfo->sd) {
- ret = v4l2_subdev_call(sdinfo->sd, video,
- s_routing, input, output, 0);
- if (ret) {
- vpfe_err(vpfe, "s_routing failed\n");
- ret = -EINVAL;
- goto get_out;
- }
- }
-
- }
-
- vpfe->current_subdev = sdinfo;
- if (sdinfo->sd)
- vpfe->v4l2_dev.ctrl_handler = sdinfo->sd->ctrl_handler;
- vpfe->current_input = index;
- vpfe->std_index = 0;
-
- /* set the bus/interface parameter for the sub device in ccdc */
- ret = vpfe_ccdc_set_hw_if_params(&vpfe->ccdc, &sdinfo->vpfe_param);
- if (ret)
- return ret;
-
- /* set the default image parameters in the device */
- return vpfe_config_image_format(vpfe,
- vpfe_standards[vpfe->std_index].std_id);
-
-get_out:
- return ret;
-}
-
-static int vpfe_s_input(struct file *file, void *priv, unsigned int index)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
-
- return vpfe_set_input(vpfe, index);
-}
-
-static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- struct vpfe_subdev_info *sdinfo;
-
- sdinfo = vpfe->current_subdev;
- if (!(sdinfo->inputs[0].capabilities & V4L2_IN_CAP_STD))
- return -ENODATA;
-
- /* Call querystd function of decoder device */
- return v4l2_device_call_until_err(&vpfe->v4l2_dev, sdinfo->grp_id,
- video, querystd, std_id);
-}
-
-static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- struct vpfe_subdev_info *sdinfo;
- int ret;
-
- sdinfo = vpfe->current_subdev;
- if (!(sdinfo->inputs[0].capabilities & V4L2_IN_CAP_STD))
- return -ENODATA;
-
- /* if trying to set the same std then nothing to do */
- if (vpfe_standards[vpfe->std_index].std_id == std_id)
- return 0;
-
- /* If streaming is started, return error */
- if (vb2_is_busy(&vpfe->buffer_queue)) {
- vpfe_err(vpfe, "%s device busy\n", __func__);
- ret = -EBUSY;
- return ret;
- }
-
- ret = v4l2_device_call_until_err(&vpfe->v4l2_dev, sdinfo->grp_id,
- video, s_std, std_id);
- if (ret < 0) {
- vpfe_err(vpfe, "Failed to set standard\n");
- return ret;
- }
- ret = vpfe_config_image_format(vpfe, std_id);
-
- return ret;
-}
-
-static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- struct vpfe_subdev_info *sdinfo;
-
- sdinfo = vpfe->current_subdev;
- if (sdinfo->inputs[0].capabilities != V4L2_IN_CAP_STD)
- return -ENODATA;
-
- *std_id = vpfe_standards[vpfe->std_index].std_id;
-
- return 0;
-}
-
-/*
- * vpfe_calculate_offsets : This function calculates buffers offset
- * for top and bottom field
- */
-static void vpfe_calculate_offsets(struct vpfe_device *vpfe)
-{
- struct v4l2_rect image_win;
-
- vpfe_ccdc_get_image_window(&vpfe->ccdc, &image_win);
- vpfe->field_off = image_win.height * image_win.width;
-}
-
-/*
- * vpfe_queue_setup - Callback function for buffer setup.
- * @vq: vb2_queue ptr
- * @nbuffers: ptr to number of buffers requested by application
- * @nplanes:: contains number of distinct video planes needed to hold a frame
- * @sizes[]: contains the size (in bytes) of each plane.
- * @alloc_devs: ptr to allocation context
- *
- * This callback function is called when reqbuf() is called to adjust
- * the buffer count and buffer size
- */
-static int vpfe_queue_setup(struct vb2_queue *vq,
- unsigned int *nbuffers, unsigned int *nplanes,
- unsigned int sizes[], struct device *alloc_devs[])
-{
- struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
- unsigned size = vpfe->fmt.fmt.pix.sizeimage;
-
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
- if (*nplanes) {
- if (sizes[0] < size)
- return -EINVAL;
- size = sizes[0];
- }
-
- *nplanes = 1;
- sizes[0] = size;
-
- vpfe_dbg(1, vpfe,
- "nbuffers=%d, size=%u\n", *nbuffers, sizes[0]);
-
- /* Calculate field offset */
- vpfe_calculate_offsets(vpfe);
-
- return 0;
-}
-
-/*
- * vpfe_buffer_prepare : callback function for buffer prepare
- * @vb: ptr to vb2_buffer
- *
- * This is the callback function for buffer prepare when vb2_qbuf()
- * function is called. The buffer is prepared and user space virtual address
- * or user address is converted into physical address
- */
-static int vpfe_buffer_prepare(struct vb2_buffer *vb)
-{
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
- struct vpfe_device *vpfe = vb2_get_drv_priv(vb->vb2_queue);
-
- vb2_set_plane_payload(vb, 0, vpfe->fmt.fmt.pix.sizeimage);
-
- if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
- return -EINVAL;
-
- vbuf->field = vpfe->fmt.fmt.pix.field;
-
- return 0;
-}
-
-/*
- * vpfe_buffer_queue : Callback function to add buffer to DMA queue
- * @vb: ptr to vb2_buffer
- */
-static void vpfe_buffer_queue(struct vb2_buffer *vb)
-{
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
- struct vpfe_device *vpfe = vb2_get_drv_priv(vb->vb2_queue);
- struct vpfe_cap_buffer *buf = to_vpfe_buffer(vbuf);
- unsigned long flags = 0;
-
- /* add the buffer to the DMA queue */
- spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
- list_add_tail(&buf->list, &vpfe->dma_queue);
- spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
-}
-
-static void vpfe_return_all_buffers(struct vpfe_device *vpfe,
- enum vb2_buffer_state state)
-{
- struct vpfe_cap_buffer *buf, *node;
- unsigned long flags;
-
- spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
- list_for_each_entry_safe(buf, node, &vpfe->dma_queue, list) {
- vb2_buffer_done(&buf->vb.vb2_buf, state);
- list_del(&buf->list);
- }
-
- if (vpfe->cur_frm)
- vb2_buffer_done(&vpfe->cur_frm->vb.vb2_buf, state);
-
- if (vpfe->next_frm && vpfe->next_frm != vpfe->cur_frm)
- vb2_buffer_done(&vpfe->next_frm->vb.vb2_buf, state);
-
- vpfe->cur_frm = NULL;
- vpfe->next_frm = NULL;
- spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
-}
-
-/*
- * vpfe_start_streaming : Starts the DMA engine for streaming
- * @vb: ptr to vb2_buffer
- * @count: number of buffers
- */
-static int vpfe_start_streaming(struct vb2_queue *vq, unsigned int count)
-{
- struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
- struct vpfe_subdev_info *sdinfo;
- unsigned long flags;
- unsigned long addr;
- int ret;
-
- spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
-
- vpfe->field = 0;
- vpfe->sequence = 0;
-
- sdinfo = vpfe->current_subdev;
-
- vpfe_attach_irq(vpfe);
-
- vpfe->stopping = false;
- init_completion(&vpfe->capture_stop);
-
- if (vpfe->ccdc.ccdc_cfg.if_type == VPFE_RAW_BAYER)
- vpfe_ccdc_config_raw(&vpfe->ccdc);
- else
- vpfe_ccdc_config_ycbcr(&vpfe->ccdc);
-
- /* Get the next frame from the buffer queue */
- vpfe->next_frm = list_entry(vpfe->dma_queue.next,
- struct vpfe_cap_buffer, list);
- vpfe->cur_frm = vpfe->next_frm;
- /* Remove buffer from the buffer queue */
- list_del(&vpfe->cur_frm->list);
- spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
-
- addr = vb2_dma_contig_plane_dma_addr(&vpfe->cur_frm->vb.vb2_buf, 0);
-
- vpfe_set_sdr_addr(&vpfe->ccdc, (unsigned long)(addr));
-
- vpfe_pcr_enable(&vpfe->ccdc, 1);
-
- ret = v4l2_subdev_call(sdinfo->sd, video, s_stream, 1);
- if (ret < 0) {
- vpfe_err(vpfe, "Error in attaching interrupt handle\n");
- goto err;
- }
-
- return 0;
-
-err:
- vpfe_return_all_buffers(vpfe, VB2_BUF_STATE_QUEUED);
- vpfe_pcr_enable(&vpfe->ccdc, 0);
- return ret;
-}
-
-/*
- * vpfe_stop_streaming : Stop the DMA engine
- * @vq: ptr to vb2_queue
- *
- * This callback stops the DMA engine and any remaining buffers
- * in the DMA queue are released.
- */
-static void vpfe_stop_streaming(struct vb2_queue *vq)
-{
- struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
- struct vpfe_subdev_info *sdinfo;
- int ret;
-
- vpfe_pcr_enable(&vpfe->ccdc, 0);
-
- /* Wait for the last frame to be captured */
- vpfe->stopping = true;
- wait_for_completion_timeout(&vpfe->capture_stop,
- msecs_to_jiffies(250));
-
- vpfe_detach_irq(vpfe);
-
- sdinfo = vpfe->current_subdev;
- ret = v4l2_subdev_call(sdinfo->sd, video, s_stream, 0);
- if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
- vpfe_dbg(1, vpfe, "stream off failed in subdev\n");
-
- /* release all active buffers */
- vpfe_return_all_buffers(vpfe, VB2_BUF_STATE_ERROR);
-}
-
-static int vpfe_g_pixelaspect(struct file *file, void *priv,
- int type, struct v4l2_fract *f)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
-
- if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- vpfe->std_index >= ARRAY_SIZE(vpfe_standards))
- return -EINVAL;
-
- *f = vpfe_standards[vpfe->std_index].pixelaspect;
-
- return 0;
-}
-
-static int
-vpfe_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
-
- if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- vpfe->std_index >= ARRAY_SIZE(vpfe_standards))
- return -EINVAL;
-
- switch (s->target) {
- case V4L2_SEL_TGT_CROP_BOUNDS:
- case V4L2_SEL_TGT_CROP_DEFAULT:
- s->r.left = 0;
- s->r.top = 0;
- s->r.width = vpfe_standards[vpfe->std_index].width;
- s->r.height = vpfe_standards[vpfe->std_index].height;
- break;
-
- case V4L2_SEL_TGT_CROP:
- s->r = vpfe->crop;
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int
-vpfe_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- struct v4l2_rect cr = vpfe->crop;
- struct v4l2_rect r = s->r;
- u32 bpp;
-
- /* If streaming is started, return error */
- if (vb2_is_busy(&vpfe->buffer_queue)) {
- vpfe_err(vpfe, "%s device busy\n", __func__);
- return -EBUSY;
- }
-
- if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- s->target != V4L2_SEL_TGT_CROP)
- return -EINVAL;
-
- v4l_bound_align_image(&r.width, 0, cr.width, 0,
- &r.height, 0, cr.height, 0, 0);
-
- r.left = clamp_t(unsigned int, r.left, 0, cr.width - r.width);
- r.top = clamp_t(unsigned int, r.top, 0, cr.height - r.height);
-
- if (s->flags & V4L2_SEL_FLAG_LE && !v4l2_rect_enclosed(&r, &s->r))
- return -ERANGE;
-
- if (s->flags & V4L2_SEL_FLAG_GE && !v4l2_rect_enclosed(&s->r, &r))
- return -ERANGE;
-
- s->r = vpfe->crop = r;
-
- bpp = __get_bytesperpixel(vpfe, vpfe->current_vpfe_fmt);
- vpfe_ccdc_set_image_window(&vpfe->ccdc, &r, bpp);
- vpfe->fmt.fmt.pix.width = r.width;
- vpfe->fmt.fmt.pix.height = r.height;
- vpfe->fmt.fmt.pix.bytesperline =
- vpfe_ccdc_get_line_length(&vpfe->ccdc);
- vpfe->fmt.fmt.pix.sizeimage = vpfe->fmt.fmt.pix.bytesperline *
- vpfe->fmt.fmt.pix.height;
-
- vpfe_dbg(1, vpfe, "cropped (%d,%d)/%dx%d of %dx%d\n",
- r.left, r.top, r.width, r.height, cr.width, cr.height);
-
- return 0;
-}
-
-static long vpfe_ioctl_default(struct file *file, void *priv,
- bool valid_prio, unsigned int cmd, void *param)
-{
- struct vpfe_device *vpfe = video_drvdata(file);
- int ret;
-
- if (!valid_prio) {
- vpfe_err(vpfe, "%s device busy\n", __func__);
- return -EBUSY;
- }
-
- /* If streaming is started, return error */
- if (vb2_is_busy(&vpfe->buffer_queue)) {
- vpfe_err(vpfe, "%s device busy\n", __func__);
- return -EBUSY;
- }
-
- switch (cmd) {
- case VIDIOC_AM437X_CCDC_CFG:
- ret = vpfe_ccdc_set_params(&vpfe->ccdc, (void __user *)param);
- if (ret) {
- vpfe_dbg(2, vpfe,
- "Error setting parameters in CCDC\n");
- return ret;
- }
- ret = vpfe_get_ccdc_image_format(vpfe,
- &vpfe->fmt);
- if (ret < 0) {
- vpfe_dbg(2, vpfe,
- "Invalid image format at CCDC\n");
- return ret;
- }
- break;
-
- default:
- ret = -ENOTTY;
- break;
- }
-
- return ret;
-}
-
-static const struct vb2_ops vpfe_video_qops = {
- .wait_prepare = vb2_ops_wait_prepare,
- .wait_finish = vb2_ops_wait_finish,
- .queue_setup = vpfe_queue_setup,
- .buf_prepare = vpfe_buffer_prepare,
- .buf_queue = vpfe_buffer_queue,
- .start_streaming = vpfe_start_streaming,
- .stop_streaming = vpfe_stop_streaming,
-};
-
-/* vpfe capture driver file operations */
-static const struct v4l2_file_operations vpfe_fops = {
- .owner = THIS_MODULE,
- .open = vpfe_open,
- .release = vpfe_release,
- .read = vb2_fop_read,
- .poll = vb2_fop_poll,
- .unlocked_ioctl = video_ioctl2,
- .mmap = vb2_fop_mmap,
-};
-
-/* vpfe capture ioctl operations */
-static const struct v4l2_ioctl_ops vpfe_ioctl_ops = {
- .vidioc_querycap = vpfe_querycap,
- .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt,
- .vidioc_g_fmt_vid_cap = vpfe_g_fmt,
- .vidioc_s_fmt_vid_cap = vpfe_s_fmt,
- .vidioc_try_fmt_vid_cap = vpfe_try_fmt,
-
- .vidioc_enum_framesizes = vpfe_enum_size,
-
- .vidioc_enum_input = vpfe_enum_input,
- .vidioc_g_input = vpfe_g_input,
- .vidioc_s_input = vpfe_s_input,
-
- .vidioc_querystd = vpfe_querystd,
- .vidioc_s_std = vpfe_s_std,
- .vidioc_g_std = vpfe_g_std,
-
- .vidioc_reqbufs = vb2_ioctl_reqbufs,
- .vidioc_create_bufs = vb2_ioctl_create_bufs,
- .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
- .vidioc_querybuf = vb2_ioctl_querybuf,
- .vidioc_qbuf = vb2_ioctl_qbuf,
- .vidioc_dqbuf = vb2_ioctl_dqbuf,
- .vidioc_expbuf = vb2_ioctl_expbuf,
- .vidioc_streamon = vb2_ioctl_streamon,
- .vidioc_streamoff = vb2_ioctl_streamoff,
-
- .vidioc_log_status = v4l2_ctrl_log_status,
- .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
- .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
-
- .vidioc_g_pixelaspect = vpfe_g_pixelaspect,
- .vidioc_g_selection = vpfe_g_selection,
- .vidioc_s_selection = vpfe_s_selection,
-
- .vidioc_default = vpfe_ioctl_default,
-};
-
-static int
-vpfe_async_bound(struct v4l2_async_notifier *notifier,
- struct v4l2_subdev *subdev,
- struct v4l2_async_subdev *asd)
-{
- struct vpfe_device *vpfe = container_of(notifier->v4l2_dev,
- struct vpfe_device, v4l2_dev);
- struct v4l2_subdev_mbus_code_enum mbus_code;
- struct vpfe_subdev_info *sdinfo;
- struct vpfe_fmt *fmt;
- int ret = 0;
- bool found = false;
- int i, j, k;
-
- for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
- if (vpfe->cfg->asd[i]->match.fwnode ==
- asd[i].match.fwnode) {
- sdinfo = &vpfe->cfg->sub_devs[i];
- vpfe->sd[i] = subdev;
- vpfe->sd[i]->grp_id = sdinfo->grp_id;
- found = true;
- break;
- }
- }
-
- if (!found) {
- vpfe_info(vpfe, "sub device (%s) not matched\n", subdev->name);
- return -EINVAL;
- }
-
- vpfe->video_dev.tvnorms |= sdinfo->inputs[0].std;
-
- vpfe->num_active_fmt = 0;
- for (j = 0, i = 0; (ret != -EINVAL); ++j) {
- memset(&mbus_code, 0, sizeof(mbus_code));
- mbus_code.index = j;
- mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
- ret = v4l2_subdev_call(subdev, pad, enum_mbus_code,
- NULL, &mbus_code);
- if (ret)
- continue;
-
- vpfe_dbg(3, vpfe,
- "subdev %s: code: %04x idx: %d\n",
- subdev->name, mbus_code.code, j);
-
- for (k = 0; k < ARRAY_SIZE(formats); k++) {
- fmt = &formats[k];
- if (mbus_code.code != fmt->code)
- continue;
- vpfe->active_fmt[i] = fmt;
- vpfe_dbg(3, vpfe,
- "matched fourcc: %s code: %04x idx: %d\n",
- print_fourcc(fmt->fourcc), mbus_code.code, i);
- vpfe->num_active_fmt = ++i;
- }
- }
-
- if (!i) {
- vpfe_err(vpfe, "No suitable format reported by subdev %s\n",
- subdev->name);
- return -EINVAL;
- }
- return 0;
-}
-
-static int vpfe_probe_complete(struct vpfe_device *vpfe)
-{
- struct video_device *vdev;
- struct vb2_queue *q;
- int err;
-
- spin_lock_init(&vpfe->dma_queue_lock);
- mutex_init(&vpfe->lock);
-
- vpfe->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- /* set first sub device as current one */
- vpfe->current_subdev = &vpfe->cfg->sub_devs[0];
- vpfe->v4l2_dev.ctrl_handler = vpfe->sd[0]->ctrl_handler;
-
- err = vpfe_set_input(vpfe, 0);
- if (err)
- goto probe_out;
-
- /* Initialize videobuf2 queue as per the buffer type */
- q = &vpfe->buffer_queue;
- q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
- q->drv_priv = vpfe;
- q->ops = &vpfe_video_qops;
- q->mem_ops = &vb2_dma_contig_memops;
- q->buf_struct_size = sizeof(struct vpfe_cap_buffer);
- q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->lock = &vpfe->lock;
- q->min_buffers_needed = 1;
- q->dev = vpfe->pdev;
-
- err = vb2_queue_init(q);
- if (err) {
- vpfe_err(vpfe, "vb2_queue_init() failed\n");
- goto probe_out;
- }
-
- INIT_LIST_HEAD(&vpfe->dma_queue);
-
- vdev = &vpfe->video_dev;
- strscpy(vdev->name, VPFE_MODULE_NAME, sizeof(vdev->name));
- vdev->release = video_device_release_empty;
- vdev->fops = &vpfe_fops;
- vdev->ioctl_ops = &vpfe_ioctl_ops;
- vdev->v4l2_dev = &vpfe->v4l2_dev;
- vdev->vfl_dir = VFL_DIR_RX;
- vdev->queue = q;
- vdev->lock = &vpfe->lock;
- vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
- V4L2_CAP_READWRITE;
- video_set_drvdata(vdev, vpfe);
- err = video_register_device(&vpfe->video_dev, VFL_TYPE_VIDEO, -1);
- if (err) {
- vpfe_err(vpfe,
- "Unable to register video device.\n");
- goto probe_out;
- }
-
- return 0;
-
-probe_out:
- v4l2_device_unregister(&vpfe->v4l2_dev);
- return err;
-}
-
-static int vpfe_async_complete(struct v4l2_async_notifier *notifier)
-{
- struct vpfe_device *vpfe = container_of(notifier->v4l2_dev,
- struct vpfe_device, v4l2_dev);
-
- return vpfe_probe_complete(vpfe);
-}
-
-static const struct v4l2_async_notifier_operations vpfe_async_ops = {
- .bound = vpfe_async_bound,
- .complete = vpfe_async_complete,
-};
-
-static struct vpfe_config *
-vpfe_get_pdata(struct vpfe_device *vpfe)
-{
- struct device_node *endpoint = NULL;
- struct device *dev = vpfe->pdev;
- struct vpfe_subdev_info *sdinfo;
- struct vpfe_config *pdata;
- unsigned int flags;
- unsigned int i;
- int err;
-
- dev_dbg(dev, "vpfe_get_pdata\n");
-
- v4l2_async_nf_init(&vpfe->notifier);
-
- if (!IS_ENABLED(CONFIG_OF) || !dev->of_node)
- return dev->platform_data;
-
- pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata)
- return NULL;
-
- for (i = 0; ; i++) {
- struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
- struct device_node *rem;
-
- endpoint = of_graph_get_next_endpoint(dev->of_node, endpoint);
- if (!endpoint)
- break;
-
- sdinfo = &pdata->sub_devs[i];
- sdinfo->grp_id = 0;
-
- /* we only support camera */
- sdinfo->inputs[0].index = i;
- strscpy(sdinfo->inputs[0].name, "Camera",
- sizeof(sdinfo->inputs[0].name));
- sdinfo->inputs[0].type = V4L2_INPUT_TYPE_CAMERA;
- sdinfo->inputs[0].std = V4L2_STD_ALL;
- sdinfo->inputs[0].capabilities = V4L2_IN_CAP_STD;
-
- sdinfo->can_route = 0;
- sdinfo->routes = NULL;
-
- of_property_read_u32(endpoint, "ti,am437x-vpfe-interface",
- &sdinfo->vpfe_param.if_type);
- if (sdinfo->vpfe_param.if_type < 0 ||
- sdinfo->vpfe_param.if_type > 4) {
- sdinfo->vpfe_param.if_type = VPFE_RAW_BAYER;
- }
-
- err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
- &bus_cfg);
- if (err) {
- dev_err(dev, "Could not parse the endpoint\n");
- goto cleanup;
- }
-
- sdinfo->vpfe_param.bus_width = bus_cfg.bus.parallel.bus_width;
-
- if (sdinfo->vpfe_param.bus_width < 8 ||
- sdinfo->vpfe_param.bus_width > 16) {
- dev_err(dev, "Invalid bus width.\n");
- goto cleanup;
- }
-
- flags = bus_cfg.bus.parallel.flags;
-
- if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
- sdinfo->vpfe_param.hdpol = 1;
-
- if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
- sdinfo->vpfe_param.vdpol = 1;
-
- rem = of_graph_get_remote_port_parent(endpoint);
- if (!rem) {
- dev_err(dev, "Remote device at %pOF not found\n",
- endpoint);
- goto cleanup;
- }
-
- pdata->asd[i] = v4l2_async_nf_add_fwnode(&vpfe->notifier,
- of_fwnode_handle(rem),
- struct
- v4l2_async_subdev);
- of_node_put(rem);
- if (IS_ERR(pdata->asd[i]))
- goto cleanup;
- }
-
- of_node_put(endpoint);
- return pdata;
-
-cleanup:
- v4l2_async_nf_cleanup(&vpfe->notifier);
- of_node_put(endpoint);
- return NULL;
-}
-
-/*
- * vpfe_probe : This function creates device entries by register
- * itself to the V4L2 driver and initializes fields of each
- * device objects
- */
-static int vpfe_probe(struct platform_device *pdev)
-{
- struct vpfe_config *vpfe_cfg;
- struct vpfe_device *vpfe;
- struct vpfe_ccdc *ccdc;
- int ret;
-
- vpfe = devm_kzalloc(&pdev->dev, sizeof(*vpfe), GFP_KERNEL);
- if (!vpfe)
- return -ENOMEM;
-
- vpfe->pdev = &pdev->dev;
-
- vpfe_cfg = vpfe_get_pdata(vpfe);
- if (!vpfe_cfg) {
- dev_err(&pdev->dev, "No platform data\n");
- return -EINVAL;
- }
-
- vpfe->cfg = vpfe_cfg;
- ccdc = &vpfe->ccdc;
-
- ccdc->ccdc_cfg.base_addr = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(ccdc->ccdc_cfg.base_addr)) {
- ret = PTR_ERR(ccdc->ccdc_cfg.base_addr);
- goto probe_out_cleanup;
- }
-
- ret = platform_get_irq(pdev, 0);
- if (ret <= 0) {
- ret = -ENODEV;
- goto probe_out_cleanup;
- }
- vpfe->irq = ret;
-
- ret = devm_request_irq(vpfe->pdev, vpfe->irq, vpfe_isr, 0,
- "vpfe_capture0", vpfe);
- if (ret) {
- dev_err(&pdev->dev, "Unable to request interrupt\n");
- ret = -EINVAL;
- goto probe_out_cleanup;
- }
-
- ret = v4l2_device_register(&pdev->dev, &vpfe->v4l2_dev);
- if (ret) {
- vpfe_err(vpfe,
- "Unable to register v4l2 device.\n");
- goto probe_out_cleanup;
- }
-
- /* set the driver data in platform device */
- platform_set_drvdata(pdev, vpfe);
- /* Enabling module functional clock */
- pm_runtime_enable(&pdev->dev);
-
- /* for now just enable it here instead of waiting for the open */
- ret = pm_runtime_resume_and_get(&pdev->dev);
- if (ret < 0) {
- vpfe_err(vpfe, "Unable to resume device.\n");
- goto probe_out_v4l2_unregister;
- }
-
- vpfe_ccdc_config_defaults(ccdc);
-
- pm_runtime_put_sync(&pdev->dev);
-
- vpfe->sd = devm_kcalloc(&pdev->dev,
- ARRAY_SIZE(vpfe->cfg->asd),
- sizeof(struct v4l2_subdev *),
- GFP_KERNEL);
- if (!vpfe->sd) {
- ret = -ENOMEM;
- goto probe_out_v4l2_unregister;
- }
-
- vpfe->notifier.ops = &vpfe_async_ops;
- ret = v4l2_async_nf_register(&vpfe->v4l2_dev, &vpfe->notifier);
- if (ret) {
- vpfe_err(vpfe, "Error registering async notifier\n");
- ret = -EINVAL;
- goto probe_out_v4l2_unregister;
- }
-
- return 0;
-
-probe_out_v4l2_unregister:
- v4l2_device_unregister(&vpfe->v4l2_dev);
-probe_out_cleanup:
- v4l2_async_nf_cleanup(&vpfe->notifier);
- return ret;
-}
-
-/*
- * vpfe_remove : It un-register device from V4L2 driver
- */
-static int vpfe_remove(struct platform_device *pdev)
-{
- struct vpfe_device *vpfe = platform_get_drvdata(pdev);
-
- pm_runtime_disable(&pdev->dev);
-
- v4l2_async_nf_unregister(&vpfe->notifier);
- v4l2_async_nf_cleanup(&vpfe->notifier);
- v4l2_device_unregister(&vpfe->v4l2_dev);
- video_unregister_device(&vpfe->video_dev);
-
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-
-static void vpfe_save_context(struct vpfe_ccdc *ccdc)
-{
- ccdc->ccdc_ctx[VPFE_PCR >> 2] = vpfe_reg_read(ccdc, VPFE_PCR);
- ccdc->ccdc_ctx[VPFE_SYNMODE >> 2] = vpfe_reg_read(ccdc, VPFE_SYNMODE);
- ccdc->ccdc_ctx[VPFE_SDOFST >> 2] = vpfe_reg_read(ccdc, VPFE_SDOFST);
- ccdc->ccdc_ctx[VPFE_SDR_ADDR >> 2] = vpfe_reg_read(ccdc, VPFE_SDR_ADDR);
- ccdc->ccdc_ctx[VPFE_CLAMP >> 2] = vpfe_reg_read(ccdc, VPFE_CLAMP);
- ccdc->ccdc_ctx[VPFE_DCSUB >> 2] = vpfe_reg_read(ccdc, VPFE_DCSUB);
- ccdc->ccdc_ctx[VPFE_COLPTN >> 2] = vpfe_reg_read(ccdc, VPFE_COLPTN);
- ccdc->ccdc_ctx[VPFE_BLKCMP >> 2] = vpfe_reg_read(ccdc, VPFE_BLKCMP);
- ccdc->ccdc_ctx[VPFE_VDINT >> 2] = vpfe_reg_read(ccdc, VPFE_VDINT);
- ccdc->ccdc_ctx[VPFE_ALAW >> 2] = vpfe_reg_read(ccdc, VPFE_ALAW);
- ccdc->ccdc_ctx[VPFE_REC656IF >> 2] = vpfe_reg_read(ccdc, VPFE_REC656IF);
- ccdc->ccdc_ctx[VPFE_CCDCFG >> 2] = vpfe_reg_read(ccdc, VPFE_CCDCFG);
- ccdc->ccdc_ctx[VPFE_CULLING >> 2] = vpfe_reg_read(ccdc, VPFE_CULLING);
- ccdc->ccdc_ctx[VPFE_HD_VD_WID >> 2] = vpfe_reg_read(ccdc,
- VPFE_HD_VD_WID);
- ccdc->ccdc_ctx[VPFE_PIX_LINES >> 2] = vpfe_reg_read(ccdc,
- VPFE_PIX_LINES);
- ccdc->ccdc_ctx[VPFE_HORZ_INFO >> 2] = vpfe_reg_read(ccdc,
- VPFE_HORZ_INFO);
- ccdc->ccdc_ctx[VPFE_VERT_START >> 2] = vpfe_reg_read(ccdc,
- VPFE_VERT_START);
- ccdc->ccdc_ctx[VPFE_VERT_LINES >> 2] = vpfe_reg_read(ccdc,
- VPFE_VERT_LINES);
- ccdc->ccdc_ctx[VPFE_HSIZE_OFF >> 2] = vpfe_reg_read(ccdc,
- VPFE_HSIZE_OFF);
-}
-
-static int vpfe_suspend(struct device *dev)
-{
- struct vpfe_device *vpfe = dev_get_drvdata(dev);
- struct vpfe_ccdc *ccdc = &vpfe->ccdc;
-
- /* only do full suspend if streaming has started */
- if (vb2_start_streaming_called(&vpfe->buffer_queue)) {
- /*
- * ignore RPM resume errors here, as it is already too late.
- * A check like that should happen earlier, either at
- * open() or just before start streaming.
- */
- pm_runtime_get_sync(dev);
- vpfe_config_enable(ccdc, 1);
-
- /* Save VPFE context */
- vpfe_save_context(ccdc);
-
- /* Disable CCDC */
- vpfe_pcr_enable(ccdc, 0);
- vpfe_config_enable(ccdc, 0);
-
- /* Disable both master and slave clock */
- pm_runtime_put_sync(dev);
- }
-
- /* Select sleep pin state */
- pinctrl_pm_select_sleep_state(dev);
-
- return 0;
-}
-
-static void vpfe_restore_context(struct vpfe_ccdc *ccdc)
-{
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SYNMODE >> 2], VPFE_SYNMODE);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CULLING >> 2], VPFE_CULLING);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SDOFST >> 2], VPFE_SDOFST);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SDR_ADDR >> 2], VPFE_SDR_ADDR);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CLAMP >> 2], VPFE_CLAMP);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_DCSUB >> 2], VPFE_DCSUB);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_COLPTN >> 2], VPFE_COLPTN);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_BLKCMP >> 2], VPFE_BLKCMP);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VDINT >> 2], VPFE_VDINT);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_ALAW >> 2], VPFE_ALAW);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_REC656IF >> 2], VPFE_REC656IF);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CCDCFG >> 2], VPFE_CCDCFG);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_PCR >> 2], VPFE_PCR);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HD_VD_WID >> 2],
- VPFE_HD_VD_WID);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_PIX_LINES >> 2],
- VPFE_PIX_LINES);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HORZ_INFO >> 2],
- VPFE_HORZ_INFO);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VERT_START >> 2],
- VPFE_VERT_START);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VERT_LINES >> 2],
- VPFE_VERT_LINES);
- vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HSIZE_OFF >> 2],
- VPFE_HSIZE_OFF);
-}
-
-static int vpfe_resume(struct device *dev)
-{
- struct vpfe_device *vpfe = dev_get_drvdata(dev);
- struct vpfe_ccdc *ccdc = &vpfe->ccdc;
-
- /* only do full resume if streaming has started */
- if (vb2_start_streaming_called(&vpfe->buffer_queue)) {
- /* Enable both master and slave clock */
- pm_runtime_get_sync(dev);
- vpfe_config_enable(ccdc, 1);
-
- /* Restore VPFE context */
- vpfe_restore_context(ccdc);
-
- vpfe_config_enable(ccdc, 0);
- pm_runtime_put_sync(dev);
- }
-
- /* Select default pin state */
- pinctrl_pm_select_default_state(dev);
-
- return 0;
-}
-
-#endif
-
-static SIMPLE_DEV_PM_OPS(vpfe_pm_ops, vpfe_suspend, vpfe_resume);
-
-static const struct of_device_id vpfe_of_match[] = {
- { .compatible = "ti,am437x-vpfe", },
- { /* sentinel */ },
-};
-MODULE_DEVICE_TABLE(of, vpfe_of_match);
-
-static struct platform_driver vpfe_driver = {
- .probe = vpfe_probe,
- .remove = vpfe_remove,
- .driver = {
- .name = VPFE_MODULE_NAME,
- .pm = &vpfe_pm_ops,
- .of_match_table = of_match_ptr(vpfe_of_match),
- },
-};
-
-module_platform_driver(vpfe_driver);
-
-MODULE_AUTHOR("Texas Instruments");
-MODULE_DESCRIPTION("TI AM437x VPFE driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(VPFE_VERSION);
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
- *
- * Benoit Parrot <bparrot@ti.com>
- * Lad, Prabhakar <prabhakar.csengg@gmail.com>
- */
-
-#ifndef AM437X_VPFE_H
-#define AM437X_VPFE_H
-
-#include <linux/am437x-vpfe.h>
-#include <linux/clk.h>
-#include <linux/completion.h>
-#include <linux/device.h>
-#include <linux/io.h>
-#include <linux/i2c.h>
-#include <linux/videodev2.h>
-
-#include <media/v4l2-dev.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <media/videobuf2-v4l2.h>
-#include <media/videobuf2-dma-contig.h>
-
-#include "am437x-vpfe_regs.h"
-
-enum vpfe_pin_pol {
- VPFE_PINPOL_POSITIVE = 0,
- VPFE_PINPOL_NEGATIVE,
-};
-
-enum vpfe_hw_if_type {
- /* Raw Bayer */
- VPFE_RAW_BAYER = 0,
- /* BT656 - 8 bit */
- VPFE_BT656,
- /* BT656 - 10 bit */
- VPFE_BT656_10BIT,
- /* YCbCr - 8 bit with external sync */
- VPFE_YCBCR_SYNC_8,
- /* YCbCr - 16 bit with external sync */
- VPFE_YCBCR_SYNC_16,
-};
-
-/* interface description */
-struct vpfe_hw_if_param {
- enum vpfe_hw_if_type if_type;
- enum vpfe_pin_pol hdpol;
- enum vpfe_pin_pol vdpol;
- unsigned int bus_width;
-};
-
-#define VPFE_MAX_SUBDEV 1
-#define VPFE_MAX_INPUTS 1
-
-struct vpfe_std_info {
- int active_pixels;
- int active_lines;
- /* current frame format */
- int frame_format;
-};
-
-struct vpfe_route {
- u32 input;
- u32 output;
-};
-
-struct vpfe_subdev_info {
- /* Sub device group id */
- int grp_id;
- /* inputs available at the sub device */
- struct v4l2_input inputs[VPFE_MAX_INPUTS];
- /* Sub dev routing information for each input */
- struct vpfe_route *routes;
- /* check if sub dev supports routing */
- int can_route;
- /* ccdc bus/interface configuration */
- struct vpfe_hw_if_param vpfe_param;
- struct v4l2_subdev *sd;
-};
-
-struct vpfe_config {
- /* information about each subdev */
- struct vpfe_subdev_info sub_devs[VPFE_MAX_SUBDEV];
- /* Flat array, arranged in groups */
- struct v4l2_async_subdev *asd[VPFE_MAX_SUBDEV];
-};
-
-struct vpfe_cap_buffer {
- struct vb2_v4l2_buffer vb;
- struct list_head list;
-};
-
-enum ccdc_pixfmt {
- CCDC_PIXFMT_RAW = 0,
- CCDC_PIXFMT_YCBCR_16BIT,
- CCDC_PIXFMT_YCBCR_8BIT,
-};
-
-enum ccdc_frmfmt {
- CCDC_FRMFMT_PROGRESSIVE = 0,
- CCDC_FRMFMT_INTERLACED,
-};
-
-/* PIXEL ORDER IN MEMORY from LSB to MSB */
-/* only applicable for 8-bit input mode */
-enum ccdc_pixorder {
- CCDC_PIXORDER_YCBYCR,
- CCDC_PIXORDER_CBYCRY,
-};
-
-enum ccdc_buftype {
- CCDC_BUFTYPE_FLD_INTERLEAVED,
- CCDC_BUFTYPE_FLD_SEPARATED
-};
-
-
-/* returns the highest bit used for the gamma */
-static inline u8 ccdc_gamma_width_max_bit(enum vpfe_ccdc_gamma_width width)
-{
- return 15 - width;
-}
-
-/* returns the highest bit used for this data size */
-static inline u8 ccdc_data_size_max_bit(enum vpfe_ccdc_data_size sz)
-{
- return sz == VPFE_CCDC_DATA_8BITS ? 7 : 15 - sz;
-}
-
-/* Structure for CCDC configuration parameters for raw capture mode */
-struct ccdc_params_raw {
- /* pixel format */
- enum ccdc_pixfmt pix_fmt;
- /* progressive or interlaced frame */
- enum ccdc_frmfmt frm_fmt;
- struct v4l2_rect win;
- /* Current Format Bytes Per Pixels */
- unsigned int bytesperpixel;
- /* Current Format Bytes per Lines
- * (Aligned to 32 bytes) used for HORZ_INFO
- */
- unsigned int bytesperline;
- /* field id polarity */
- enum vpfe_pin_pol fid_pol;
- /* vertical sync polarity */
- enum vpfe_pin_pol vd_pol;
- /* horizontal sync polarity */
- enum vpfe_pin_pol hd_pol;
- /* interleaved or separated fields */
- enum ccdc_buftype buf_type;
- /*
- * enable to store the image in inverse
- * order in memory(bottom to top)
- */
- unsigned char image_invert_enable;
- /* configurable parameters */
- struct vpfe_ccdc_config_params_raw config_params;
-};
-
-struct ccdc_params_ycbcr {
- /* pixel format */
- enum ccdc_pixfmt pix_fmt;
- /* progressive or interlaced frame */
- enum ccdc_frmfmt frm_fmt;
- struct v4l2_rect win;
- /* Current Format Bytes Per Pixels */
- unsigned int bytesperpixel;
- /* Current Format Bytes per Lines
- * (Aligned to 32 bytes) used for HORZ_INFO
- */
- unsigned int bytesperline;
- /* field id polarity */
- enum vpfe_pin_pol fid_pol;
- /* vertical sync polarity */
- enum vpfe_pin_pol vd_pol;
- /* horizontal sync polarity */
- enum vpfe_pin_pol hd_pol;
- /* enable BT.656 embedded sync mode */
- int bt656_enable;
- /* cb:y:cr:y or y:cb:y:cr in memory */
- enum ccdc_pixorder pix_order;
- /* interleaved or separated fields */
- enum ccdc_buftype buf_type;
-};
-
-/*
- * CCDC operational configuration
- */
-struct ccdc_config {
- /* CCDC interface type */
- enum vpfe_hw_if_type if_type;
- /* Raw Bayer configuration */
- struct ccdc_params_raw bayer;
- /* YCbCr configuration */
- struct ccdc_params_ycbcr ycbcr;
- /* ccdc base address */
- void __iomem *base_addr;
-};
-
-struct vpfe_ccdc {
- struct ccdc_config ccdc_cfg;
- u32 ccdc_ctx[VPFE_REG_END / sizeof(u32)];
-};
-
-/*
- * struct vpfe_fmt - VPFE media bus format information
- * fourcc: V4L2 pixel format code
- * code: V4L2 media bus format code
- * bitsperpixel: Bits per pixel over the bus
- */
-struct vpfe_fmt {
- u32 fourcc;
- u32 code;
- u32 bitsperpixel;
-};
-
-/*
- * When formats[] is modified make sure to adjust this value also.
- * Expect compile time warnings if VPFE_NUM_FORMATS is smaller then
- * the number of elements in formats[].
- */
-#define VPFE_NUM_FORMATS 10
-
-struct vpfe_device {
- /* V4l2 specific parameters */
- /* Identifies video device for this channel */
- struct video_device video_dev;
- /* sub devices */
- struct v4l2_subdev **sd;
- /* vpfe cfg */
- struct vpfe_config *cfg;
- /* V4l2 device */
- struct v4l2_device v4l2_dev;
- /* parent device */
- struct device *pdev;
- /* subdevice async Notifier */
- struct v4l2_async_notifier notifier;
- /* Indicates id of the field which is being displayed */
- unsigned field;
- unsigned sequence;
- /* current interface type */
- struct vpfe_hw_if_param vpfe_if_params;
- /* ptr to currently selected sub device */
- struct vpfe_subdev_info *current_subdev;
- /* current input at the sub device */
- int current_input;
- /* Keeps track of the information about the standard */
- struct vpfe_std_info std_info;
- /* std index into std table */
- int std_index;
- /* IRQs used when CCDC output to SDRAM */
- unsigned int irq;
- /* Pointer pointing to current v4l2_buffer */
- struct vpfe_cap_buffer *cur_frm;
- /* Pointer pointing to next v4l2_buffer */
- struct vpfe_cap_buffer *next_frm;
- /* Used to store pixel format */
- struct v4l2_format fmt;
- /* Used to keep a reference to the current vpfe_fmt */
- struct vpfe_fmt *current_vpfe_fmt;
- struct vpfe_fmt *active_fmt[VPFE_NUM_FORMATS];
- unsigned int num_active_fmt;
-
- /*
- * used when IMP is chained to store the crop window which
- * is different from the image window
- */
- struct v4l2_rect crop;
- /* Buffer queue used in video-buf */
- struct vb2_queue buffer_queue;
- /* Queue of filled frames */
- struct list_head dma_queue;
- /* IRQ lock for DMA queue */
- spinlock_t dma_queue_lock;
- /* lock used to access this structure */
- struct mutex lock;
- /*
- * offset where second field starts from the starting of the
- * buffer for field separated YCbCr formats
- */
- u32 field_off;
- struct vpfe_ccdc ccdc;
- int stopping;
- struct completion capture_stop;
-};
-
-#endif /* AM437X_VPFE_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * TI AM437x Image Sensor Interface Registers
- *
- * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
- *
- * Benoit Parrot <bparrot@ti.com>
- * Lad, Prabhakar <prabhakar.csengg@gmail.com>
- */
-
-#ifndef AM437X_VPFE_REGS_H
-#define AM437X_VPFE_REGS_H
-
-/* VPFE module register offset */
-#define VPFE_REVISION 0x0
-#define VPFE_PCR 0x4
-#define VPFE_SYNMODE 0x8
-#define VPFE_HD_VD_WID 0xc
-#define VPFE_PIX_LINES 0x10
-#define VPFE_HORZ_INFO 0x14
-#define VPFE_VERT_START 0x18
-#define VPFE_VERT_LINES 0x1c
-#define VPFE_CULLING 0x20
-#define VPFE_HSIZE_OFF 0x24
-#define VPFE_SDOFST 0x28
-#define VPFE_SDR_ADDR 0x2c
-#define VPFE_CLAMP 0x30
-#define VPFE_DCSUB 0x34
-#define VPFE_COLPTN 0x38
-#define VPFE_BLKCMP 0x3c
-#define VPFE_VDINT 0x48
-#define VPFE_ALAW 0x4c
-#define VPFE_REC656IF 0x50
-#define VPFE_CCDCFG 0x54
-#define VPFE_DMA_CNTL 0x98
-#define VPFE_SYSCONFIG 0x104
-#define VPFE_CONFIG 0x108
-#define VPFE_IRQ_EOI 0x110
-#define VPFE_IRQ_STS_RAW 0x114
-#define VPFE_IRQ_STS 0x118
-#define VPFE_IRQ_EN_SET 0x11c
-#define VPFE_IRQ_EN_CLR 0x120
-#define VPFE_REG_END 0x124
-
-/* Define bit fields within selected registers */
-#define VPFE_FID_POL_MASK 1
-#define VPFE_FID_POL_SHIFT 4
-#define VPFE_HD_POL_MASK 1
-#define VPFE_HD_POL_SHIFT 3
-#define VPFE_VD_POL_MASK 1
-#define VPFE_VD_POL_SHIFT 2
-#define VPFE_HSIZE_OFF_MASK 0xffffffe0
-#define VPFE_32BYTE_ALIGN_VAL 31
-#define VPFE_FRM_FMT_MASK 0x1
-#define VPFE_FRM_FMT_SHIFT 7
-#define VPFE_DATA_SZ_MASK 7
-#define VPFE_DATA_SZ_SHIFT 8
-#define VPFE_PIX_FMT_MASK 3
-#define VPFE_PIX_FMT_SHIFT 12
-#define VPFE_VP2SDR_DISABLE 0xfffbffff
-#define VPFE_WEN_ENABLE BIT(17)
-#define VPFE_SDR2RSZ_DISABLE 0xfff7ffff
-#define VPFE_VDHDEN_ENABLE BIT(16)
-#define VPFE_LPF_ENABLE BIT(14)
-#define VPFE_ALAW_ENABLE BIT(3)
-#define VPFE_ALAW_GAMMA_WD_MASK 7
-#define VPFE_BLK_CLAMP_ENABLE BIT(31)
-#define VPFE_BLK_SGAIN_MASK 0x1f
-#define VPFE_BLK_ST_PXL_MASK 0x7fff
-#define VPFE_BLK_ST_PXL_SHIFT 10
-#define VPFE_BLK_SAMPLE_LN_MASK 7
-#define VPFE_BLK_SAMPLE_LN_SHIFT 28
-#define VPFE_BLK_SAMPLE_LINE_MASK 7
-#define VPFE_BLK_SAMPLE_LINE_SHIFT 25
-#define VPFE_BLK_DC_SUB_MASK 0x03fff
-#define VPFE_BLK_COMP_MASK 0xff
-#define VPFE_BLK_COMP_GB_COMP_SHIFT 8
-#define VPFE_BLK_COMP_GR_COMP_SHIFT 16
-#define VPFE_BLK_COMP_R_COMP_SHIFT 24
-#define VPFE_LATCH_ON_VSYNC_DISABLE BIT(15)
-#define VPFE_DATA_PACK_ENABLE BIT(11)
-#define VPFE_HORZ_INFO_SPH_SHIFT 16
-#define VPFE_VERT_START_SLV0_SHIFT 16
-#define VPFE_VDINT_VDINT0_SHIFT 16
-#define VPFE_VDINT_VDINT1_MASK 0xffff
-#define VPFE_PPC_RAW 1
-#define VPFE_DCSUB_DEFAULT_VAL 0
-#define VPFE_CLAMP_DEFAULT_VAL 0
-#define VPFE_COLPTN_VAL 0xbb11bb11
-#define VPFE_TWO_BYTES_PER_PIXEL 2
-#define VPFE_INTERLACED_IMAGE_INVERT 0x4b6d
-#define VPFE_INTERLACED_NO_IMAGE_INVERT 0x0249
-#define VPFE_PROGRESSIVE_IMAGE_INVERT 0x4000
-#define VPFE_PROGRESSIVE_NO_IMAGE_INVERT 0
-#define VPFE_INTERLACED_HEIGHT_SHIFT 1
-#define VPFE_SYN_MODE_INPMOD_SHIFT 12
-#define VPFE_SYN_MODE_INPMOD_MASK 3
-#define VPFE_SYN_MODE_8BITS (7 << 8)
-#define VPFE_SYN_MODE_10BITS (6 << 8)
-#define VPFE_SYN_MODE_11BITS (5 << 8)
-#define VPFE_SYN_MODE_12BITS (4 << 8)
-#define VPFE_SYN_MODE_13BITS (3 << 8)
-#define VPFE_SYN_MODE_14BITS (2 << 8)
-#define VPFE_SYN_MODE_15BITS (1 << 8)
-#define VPFE_SYN_MODE_16BITS (0 << 8)
-#define VPFE_SYN_FLDMODE_MASK 1
-#define VPFE_SYN_FLDMODE_SHIFT 7
-#define VPFE_REC656IF_BT656_EN 3
-#define VPFE_SYN_MODE_VD_POL_NEGATIVE BIT(2)
-#define VPFE_CCDCFG_Y8POS_SHIFT 11
-#define VPFE_CCDCFG_BW656_10BIT BIT(5)
-#define VPFE_SDOFST_FIELD_INTERLEAVED 0x249
-#define VPFE_NO_CULLING 0xffff00ff
-#define VPFE_VDINT0 BIT(0)
-#define VPFE_VDINT1 BIT(1)
-#define VPFE_VDINT2 BIT(2)
-#define VPFE_DMA_CNTL_OVERFLOW BIT(31)
-
-#define VPFE_CONFIG_PCLK_INV_SHIFT 0
-#define VPFE_CONFIG_PCLK_INV_MASK 1
-#define VPFE_CONFIG_PCLK_INV_NOT_INV 0
-#define VPFE_CONFIG_PCLK_INV_INV 1
-#define VPFE_CONFIG_EN_SHIFT 1
-#define VPFE_CONFIG_EN_MASK 2
-#define VPFE_CONFIG_EN_DISABLE 0
-#define VPFE_CONFIG_EN_ENABLE 1
-#define VPFE_CONFIG_ST_SHIFT 2
-#define VPFE_CONFIG_ST_MASK 4
-#define VPFE_CONFIG_ST_OCP_ACTIVE 0
-#define VPFE_CONFIG_ST_OCP_STANDBY 1
-
-#endif /* AM437X_VPFE_REGS_H */
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_AM437X_VPFE
+ tristate "TI AM437x VPFE video capture driver"
+ depends on V4L_PLATFORM_DRIVERS
+ depends on VIDEO_V4L2
+ depends on SOC_AM43XX || COMPILE_TEST
+ select MEDIA_CONTROLLER
+ select VIDEO_V4L2_SUBDEV_API
+ select VIDEOBUF2_DMA_CONTIG
+ select V4L2_FWNODE
+ help
+ Support for AM437x Video Processing Front End based Video
+ Capture Driver.
+
+ To compile this driver as a module, choose M here. The module
+ will be called am437x-vpfe.
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-only
+# Makefile for AM437x VPFE driver
+
+obj-$(CONFIG_VIDEO_AM437X_VPFE) += am437x-vpfe.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * TI VPFE capture Driver
+ *
+ * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
+ *
+ * Benoit Parrot <bparrot@ti.com>
+ * Lad, Prabhakar <prabhakar.csengg@gmail.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_graph.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-rect.h>
+
+#include "am437x-vpfe.h"
+
+#define VPFE_MODULE_NAME "vpfe"
+#define VPFE_VERSION "0.1.0"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Debug level 0-8");
+
+#define vpfe_dbg(level, dev, fmt, arg...) \
+ v4l2_dbg(level, debug, &dev->v4l2_dev, fmt, ##arg)
+#define vpfe_info(dev, fmt, arg...) \
+ v4l2_info(&dev->v4l2_dev, fmt, ##arg)
+#define vpfe_err(dev, fmt, arg...) \
+ v4l2_err(&dev->v4l2_dev, fmt, ##arg)
+
+/* standard information */
+struct vpfe_standard {
+ v4l2_std_id std_id;
+ unsigned int width;
+ unsigned int height;
+ struct v4l2_fract pixelaspect;
+ int frame_format;
+};
+
+static const struct vpfe_standard vpfe_standards[] = {
+ {V4L2_STD_525_60, 720, 480, {11, 10}, 1},
+ {V4L2_STD_625_50, 720, 576, {54, 59}, 1},
+};
+
+static struct vpfe_fmt formats[VPFE_NUM_FORMATS] = {
+ {
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .code = MEDIA_BUS_FMT_YUYV8_2X8,
+ .bitsperpixel = 16,
+ }, {
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .code = MEDIA_BUS_FMT_UYVY8_2X8,
+ .bitsperpixel = 16,
+ }, {
+ .fourcc = V4L2_PIX_FMT_YVYU,
+ .code = MEDIA_BUS_FMT_YVYU8_2X8,
+ .bitsperpixel = 16,
+ }, {
+ .fourcc = V4L2_PIX_FMT_VYUY,
+ .code = MEDIA_BUS_FMT_VYUY8_2X8,
+ .bitsperpixel = 16,
+ }, {
+ .fourcc = V4L2_PIX_FMT_SBGGR8,
+ .code = MEDIA_BUS_FMT_SBGGR8_1X8,
+ .bitsperpixel = 8,
+ }, {
+ .fourcc = V4L2_PIX_FMT_SGBRG8,
+ .code = MEDIA_BUS_FMT_SGBRG8_1X8,
+ .bitsperpixel = 8,
+ }, {
+ .fourcc = V4L2_PIX_FMT_SGRBG8,
+ .code = MEDIA_BUS_FMT_SGRBG8_1X8,
+ .bitsperpixel = 8,
+ }, {
+ .fourcc = V4L2_PIX_FMT_SRGGB8,
+ .code = MEDIA_BUS_FMT_SRGGB8_1X8,
+ .bitsperpixel = 8,
+ }, {
+ .fourcc = V4L2_PIX_FMT_RGB565,
+ .code = MEDIA_BUS_FMT_RGB565_2X8_LE,
+ .bitsperpixel = 16,
+ }, {
+ .fourcc = V4L2_PIX_FMT_RGB565X,
+ .code = MEDIA_BUS_FMT_RGB565_2X8_BE,
+ .bitsperpixel = 16,
+ },
+};
+
+static int __subdev_get_format(struct vpfe_device *vpfe,
+ struct v4l2_mbus_framefmt *fmt);
+static int vpfe_calc_format_size(struct vpfe_device *vpfe,
+ const struct vpfe_fmt *fmt,
+ struct v4l2_format *f);
+
+static struct vpfe_fmt *find_format_by_code(struct vpfe_device *vpfe,
+ unsigned int code)
+{
+ struct vpfe_fmt *fmt;
+ unsigned int k;
+
+ for (k = 0; k < vpfe->num_active_fmt; k++) {
+ fmt = vpfe->active_fmt[k];
+ if (fmt->code == code)
+ return fmt;
+ }
+
+ return NULL;
+}
+
+static struct vpfe_fmt *find_format_by_pix(struct vpfe_device *vpfe,
+ unsigned int pixelformat)
+{
+ struct vpfe_fmt *fmt;
+ unsigned int k;
+
+ for (k = 0; k < vpfe->num_active_fmt; k++) {
+ fmt = vpfe->active_fmt[k];
+ if (fmt->fourcc == pixelformat)
+ return fmt;
+ }
+
+ return NULL;
+}
+
+static unsigned int __get_bytesperpixel(struct vpfe_device *vpfe,
+ const struct vpfe_fmt *fmt)
+{
+ struct vpfe_subdev_info *sdinfo = vpfe->current_subdev;
+ unsigned int bus_width = sdinfo->vpfe_param.bus_width;
+ u32 bpp, bus_width_bytes, clocksperpixel;
+
+ bus_width_bytes = ALIGN(bus_width, 8) >> 3;
+ clocksperpixel = DIV_ROUND_UP(fmt->bitsperpixel, bus_width);
+ bpp = clocksperpixel * bus_width_bytes;
+
+ return bpp;
+}
+
+/* Print Four-character-code (FOURCC) */
+static char *print_fourcc(u32 fmt)
+{
+ static char code[5];
+
+ code[0] = (unsigned char)(fmt & 0xff);
+ code[1] = (unsigned char)((fmt >> 8) & 0xff);
+ code[2] = (unsigned char)((fmt >> 16) & 0xff);
+ code[3] = (unsigned char)((fmt >> 24) & 0xff);
+ code[4] = '\0';
+
+ return code;
+}
+
+static inline u32 vpfe_reg_read(struct vpfe_ccdc *ccdc, u32 offset)
+{
+ return ioread32(ccdc->ccdc_cfg.base_addr + offset);
+}
+
+static inline void vpfe_reg_write(struct vpfe_ccdc *ccdc, u32 val, u32 offset)
+{
+ iowrite32(val, ccdc->ccdc_cfg.base_addr + offset);
+}
+
+static inline struct vpfe_device *to_vpfe(struct vpfe_ccdc *ccdc)
+{
+ return container_of(ccdc, struct vpfe_device, ccdc);
+}
+
+static inline
+struct vpfe_cap_buffer *to_vpfe_buffer(struct vb2_v4l2_buffer *vb)
+{
+ return container_of(vb, struct vpfe_cap_buffer, vb);
+}
+
+static inline void vpfe_pcr_enable(struct vpfe_ccdc *ccdc, int flag)
+{
+ vpfe_reg_write(ccdc, !!flag, VPFE_PCR);
+}
+
+static void vpfe_config_enable(struct vpfe_ccdc *ccdc, int flag)
+{
+ unsigned int cfg;
+
+ if (!flag) {
+ cfg = vpfe_reg_read(ccdc, VPFE_CONFIG);
+ cfg &= ~(VPFE_CONFIG_EN_ENABLE << VPFE_CONFIG_EN_SHIFT);
+ } else {
+ cfg = VPFE_CONFIG_EN_ENABLE << VPFE_CONFIG_EN_SHIFT;
+ }
+
+ vpfe_reg_write(ccdc, cfg, VPFE_CONFIG);
+}
+
+static void vpfe_ccdc_setwin(struct vpfe_ccdc *ccdc,
+ struct v4l2_rect *image_win,
+ enum ccdc_frmfmt frm_fmt,
+ int bpp)
+{
+ int horz_start, horz_nr_pixels;
+ int vert_start, vert_nr_lines;
+ int val, mid_img;
+
+ /*
+ * ppc - per pixel count. indicates how many pixels per cell
+ * output to SDRAM. example, for ycbcr, it is one y and one c, so 2.
+ * raw capture this is 1
+ */
+ horz_start = image_win->left * bpp;
+ horz_nr_pixels = (image_win->width * bpp) - 1;
+ vpfe_reg_write(ccdc, (horz_start << VPFE_HORZ_INFO_SPH_SHIFT) |
+ horz_nr_pixels, VPFE_HORZ_INFO);
+
+ vert_start = image_win->top;
+
+ if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
+ vert_nr_lines = (image_win->height >> 1) - 1;
+ vert_start >>= 1;
+ /* configure VDINT0 */
+ val = (vert_start << VPFE_VDINT_VDINT0_SHIFT);
+ } else {
+ vert_nr_lines = image_win->height - 1;
+ /*
+ * configure VDINT0 and VDINT1. VDINT1 will be at half
+ * of image height
+ */
+ mid_img = vert_start + (image_win->height / 2);
+ val = (vert_start << VPFE_VDINT_VDINT0_SHIFT) |
+ (mid_img & VPFE_VDINT_VDINT1_MASK);
+ }
+
+ vpfe_reg_write(ccdc, val, VPFE_VDINT);
+
+ vpfe_reg_write(ccdc, (vert_start << VPFE_VERT_START_SLV0_SHIFT) |
+ vert_start, VPFE_VERT_START);
+ vpfe_reg_write(ccdc, vert_nr_lines, VPFE_VERT_LINES);
+}
+
+static void vpfe_reg_dump(struct vpfe_ccdc *ccdc)
+{
+ struct vpfe_device *vpfe = to_vpfe(ccdc);
+
+ vpfe_dbg(3, vpfe, "ALAW: 0x%x\n", vpfe_reg_read(ccdc, VPFE_ALAW));
+ vpfe_dbg(3, vpfe, "CLAMP: 0x%x\n", vpfe_reg_read(ccdc, VPFE_CLAMP));
+ vpfe_dbg(3, vpfe, "DCSUB: 0x%x\n", vpfe_reg_read(ccdc, VPFE_DCSUB));
+ vpfe_dbg(3, vpfe, "BLKCMP: 0x%x\n", vpfe_reg_read(ccdc, VPFE_BLKCMP));
+ vpfe_dbg(3, vpfe, "COLPTN: 0x%x\n", vpfe_reg_read(ccdc, VPFE_COLPTN));
+ vpfe_dbg(3, vpfe, "SDOFST: 0x%x\n", vpfe_reg_read(ccdc, VPFE_SDOFST));
+ vpfe_dbg(3, vpfe, "SYN_MODE: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_SYNMODE));
+ vpfe_dbg(3, vpfe, "HSIZE_OFF: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_HSIZE_OFF));
+ vpfe_dbg(3, vpfe, "HORZ_INFO: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_HORZ_INFO));
+ vpfe_dbg(3, vpfe, "VERT_START: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_VERT_START));
+ vpfe_dbg(3, vpfe, "VERT_LINES: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_VERT_LINES));
+}
+
+static int
+vpfe_ccdc_validate_param(struct vpfe_ccdc *ccdc,
+ struct vpfe_ccdc_config_params_raw *ccdcparam)
+{
+ struct vpfe_device *vpfe = to_vpfe(ccdc);
+ u8 max_gamma, max_data;
+
+ if (!ccdcparam->alaw.enable)
+ return 0;
+
+ max_gamma = ccdc_gamma_width_max_bit(ccdcparam->alaw.gamma_wd);
+ max_data = ccdc_data_size_max_bit(ccdcparam->data_sz);
+
+ if (ccdcparam->alaw.gamma_wd > VPFE_CCDC_GAMMA_BITS_09_0 ||
+ ccdcparam->data_sz > VPFE_CCDC_DATA_8BITS ||
+ max_gamma > max_data) {
+ vpfe_dbg(1, vpfe, "Invalid data line select\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void
+vpfe_ccdc_update_raw_params(struct vpfe_ccdc *ccdc,
+ struct vpfe_ccdc_config_params_raw *raw_params)
+{
+ struct vpfe_ccdc_config_params_raw *config_params =
+ &ccdc->ccdc_cfg.bayer.config_params;
+
+ *config_params = *raw_params;
+}
+
+/*
+ * vpfe_ccdc_restore_defaults()
+ * This function will write defaults to all CCDC registers
+ */
+static void vpfe_ccdc_restore_defaults(struct vpfe_ccdc *ccdc)
+{
+ int i;
+
+ /* Disable CCDC */
+ vpfe_pcr_enable(ccdc, 0);
+
+ /* set all registers to default value */
+ for (i = 4; i <= 0x94; i += 4)
+ vpfe_reg_write(ccdc, 0, i);
+
+ vpfe_reg_write(ccdc, VPFE_NO_CULLING, VPFE_CULLING);
+ vpfe_reg_write(ccdc, VPFE_CCDC_GAMMA_BITS_11_2, VPFE_ALAW);
+}
+
+static int vpfe_ccdc_close(struct vpfe_ccdc *ccdc, struct device *dev)
+{
+ struct vpfe_device *vpfe = to_vpfe(ccdc);
+ u32 dma_cntl, pcr;
+
+ pcr = vpfe_reg_read(ccdc, VPFE_PCR);
+ if (pcr)
+ vpfe_dbg(1, vpfe, "VPFE_PCR is still set (%x)", pcr);
+
+ dma_cntl = vpfe_reg_read(ccdc, VPFE_DMA_CNTL);
+ if ((dma_cntl & VPFE_DMA_CNTL_OVERFLOW))
+ vpfe_dbg(1, vpfe, "VPFE_DMA_CNTL_OVERFLOW is still set (%x)",
+ dma_cntl);
+
+ /* Disable CCDC by resetting all register to default POR values */
+ vpfe_ccdc_restore_defaults(ccdc);
+
+ /* Disabled the module at the CONFIG level */
+ vpfe_config_enable(ccdc, 0);
+
+ pm_runtime_put_sync(dev);
+ return 0;
+}
+
+static int vpfe_ccdc_set_params(struct vpfe_ccdc *ccdc, void __user *params)
+{
+ struct vpfe_device *vpfe = to_vpfe(ccdc);
+ struct vpfe_ccdc_config_params_raw raw_params;
+ int x;
+
+ if (ccdc->ccdc_cfg.if_type != VPFE_RAW_BAYER)
+ return -EINVAL;
+
+ x = copy_from_user(&raw_params, params, sizeof(raw_params));
+ if (x) {
+ vpfe_dbg(1, vpfe,
+ "%s: error in copying ccdc params, %d\n",
+ __func__, x);
+ return -EFAULT;
+ }
+
+ if (!vpfe_ccdc_validate_param(ccdc, &raw_params)) {
+ vpfe_ccdc_update_raw_params(ccdc, &raw_params);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+/*
+ * vpfe_ccdc_config_ycbcr()
+ * This function will configure CCDC for YCbCr video capture
+ */
+static void vpfe_ccdc_config_ycbcr(struct vpfe_ccdc *ccdc)
+{
+ struct ccdc_params_ycbcr *params = &ccdc->ccdc_cfg.ycbcr;
+ u32 syn_mode;
+
+ /*
+ * first restore the CCDC registers to default values
+ * This is important since we assume default values to be set in
+ * a lot of registers that we didn't touch
+ */
+ vpfe_ccdc_restore_defaults(ccdc);
+
+ /*
+ * configure pixel format, frame format, configure video frame
+ * format, enable output to SDRAM, enable internal timing generator
+ * and 8bit pack mode
+ */
+ syn_mode = (((params->pix_fmt & VPFE_SYN_MODE_INPMOD_MASK) <<
+ VPFE_SYN_MODE_INPMOD_SHIFT) |
+ ((params->frm_fmt & VPFE_SYN_FLDMODE_MASK) <<
+ VPFE_SYN_FLDMODE_SHIFT) | VPFE_VDHDEN_ENABLE |
+ VPFE_WEN_ENABLE | VPFE_DATA_PACK_ENABLE);
+
+ /* setup BT.656 sync mode */
+ if (params->bt656_enable) {
+ vpfe_reg_write(ccdc, VPFE_REC656IF_BT656_EN, VPFE_REC656IF);
+
+ /*
+ * configure the FID, VD, HD pin polarity,
+ * fld,hd pol positive, vd negative, 8-bit data
+ */
+ syn_mode |= VPFE_SYN_MODE_VD_POL_NEGATIVE;
+ if (ccdc->ccdc_cfg.if_type == VPFE_BT656_10BIT)
+ syn_mode |= VPFE_SYN_MODE_10BITS;
+ else
+ syn_mode |= VPFE_SYN_MODE_8BITS;
+ } else {
+ /* y/c external sync mode */
+ syn_mode |= (((params->fid_pol & VPFE_FID_POL_MASK) <<
+ VPFE_FID_POL_SHIFT) |
+ ((params->hd_pol & VPFE_HD_POL_MASK) <<
+ VPFE_HD_POL_SHIFT) |
+ ((params->vd_pol & VPFE_VD_POL_MASK) <<
+ VPFE_VD_POL_SHIFT));
+ }
+ vpfe_reg_write(ccdc, syn_mode, VPFE_SYNMODE);
+
+ /* configure video window */
+ vpfe_ccdc_setwin(ccdc, ¶ms->win,
+ params->frm_fmt, params->bytesperpixel);
+
+ /*
+ * configure the order of y cb cr in SDRAM, and disable latch
+ * internal register on vsync
+ */
+ if (ccdc->ccdc_cfg.if_type == VPFE_BT656_10BIT)
+ vpfe_reg_write(ccdc,
+ (params->pix_order << VPFE_CCDCFG_Y8POS_SHIFT) |
+ VPFE_LATCH_ON_VSYNC_DISABLE |
+ VPFE_CCDCFG_BW656_10BIT, VPFE_CCDCFG);
+ else
+ vpfe_reg_write(ccdc,
+ (params->pix_order << VPFE_CCDCFG_Y8POS_SHIFT) |
+ VPFE_LATCH_ON_VSYNC_DISABLE, VPFE_CCDCFG);
+
+ /*
+ * configure the horizontal line offset. This should be a
+ * on 32 byte boundary. So clear LSB 5 bits
+ */
+ vpfe_reg_write(ccdc, params->bytesperline, VPFE_HSIZE_OFF);
+
+ /* configure the memory line offset */
+ if (params->buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED)
+ /* two fields are interleaved in memory */
+ vpfe_reg_write(ccdc, VPFE_SDOFST_FIELD_INTERLEAVED,
+ VPFE_SDOFST);
+}
+
+static void
+vpfe_ccdc_config_black_clamp(struct vpfe_ccdc *ccdc,
+ struct vpfe_ccdc_black_clamp *bclamp)
+{
+ u32 val;
+
+ if (!bclamp->enable) {
+ /* configure DCSub */
+ val = (bclamp->dc_sub) & VPFE_BLK_DC_SUB_MASK;
+ vpfe_reg_write(ccdc, val, VPFE_DCSUB);
+ vpfe_reg_write(ccdc, VPFE_CLAMP_DEFAULT_VAL, VPFE_CLAMP);
+ return;
+ }
+ /*
+ * Configure gain, Start pixel, No of line to be avg,
+ * No of pixel/line to be avg, & Enable the Black clamping
+ */
+ val = ((bclamp->sgain & VPFE_BLK_SGAIN_MASK) |
+ ((bclamp->start_pixel & VPFE_BLK_ST_PXL_MASK) <<
+ VPFE_BLK_ST_PXL_SHIFT) |
+ ((bclamp->sample_ln & VPFE_BLK_SAMPLE_LINE_MASK) <<
+ VPFE_BLK_SAMPLE_LINE_SHIFT) |
+ ((bclamp->sample_pixel & VPFE_BLK_SAMPLE_LN_MASK) <<
+ VPFE_BLK_SAMPLE_LN_SHIFT) | VPFE_BLK_CLAMP_ENABLE);
+ vpfe_reg_write(ccdc, val, VPFE_CLAMP);
+ /* If Black clamping is enable then make dcsub 0 */
+ vpfe_reg_write(ccdc, VPFE_DCSUB_DEFAULT_VAL, VPFE_DCSUB);
+}
+
+static void
+vpfe_ccdc_config_black_compense(struct vpfe_ccdc *ccdc,
+ struct vpfe_ccdc_black_compensation *bcomp)
+{
+ u32 val;
+
+ val = ((bcomp->b & VPFE_BLK_COMP_MASK) |
+ ((bcomp->gb & VPFE_BLK_COMP_MASK) <<
+ VPFE_BLK_COMP_GB_COMP_SHIFT) |
+ ((bcomp->gr & VPFE_BLK_COMP_MASK) <<
+ VPFE_BLK_COMP_GR_COMP_SHIFT) |
+ ((bcomp->r & VPFE_BLK_COMP_MASK) <<
+ VPFE_BLK_COMP_R_COMP_SHIFT));
+ vpfe_reg_write(ccdc, val, VPFE_BLKCMP);
+}
+
+/*
+ * vpfe_ccdc_config_raw()
+ * This function will configure CCDC for Raw capture mode
+ */
+static void vpfe_ccdc_config_raw(struct vpfe_ccdc *ccdc)
+{
+ struct vpfe_device *vpfe = to_vpfe(ccdc);
+ struct vpfe_ccdc_config_params_raw *config_params =
+ &ccdc->ccdc_cfg.bayer.config_params;
+ struct ccdc_params_raw *params = &ccdc->ccdc_cfg.bayer;
+ unsigned int syn_mode;
+ unsigned int val;
+
+ /* Reset CCDC */
+ vpfe_ccdc_restore_defaults(ccdc);
+
+ /* Disable latching function registers on VSYNC */
+ vpfe_reg_write(ccdc, VPFE_LATCH_ON_VSYNC_DISABLE, VPFE_CCDCFG);
+
+ /*
+ * Configure the vertical sync polarity(SYN_MODE.VDPOL),
+ * horizontal sync polarity (SYN_MODE.HDPOL), frame id polarity
+ * (SYN_MODE.FLDPOL), frame format(progressive or interlace),
+ * data size(SYNMODE.DATSIZ), &pixel format (Input mode), output
+ * SDRAM, enable internal timing generator
+ */
+ syn_mode = (((params->vd_pol & VPFE_VD_POL_MASK) << VPFE_VD_POL_SHIFT) |
+ ((params->hd_pol & VPFE_HD_POL_MASK) << VPFE_HD_POL_SHIFT) |
+ ((params->fid_pol & VPFE_FID_POL_MASK) <<
+ VPFE_FID_POL_SHIFT) | ((params->frm_fmt &
+ VPFE_FRM_FMT_MASK) << VPFE_FRM_FMT_SHIFT) |
+ ((config_params->data_sz & VPFE_DATA_SZ_MASK) <<
+ VPFE_DATA_SZ_SHIFT) | ((params->pix_fmt &
+ VPFE_PIX_FMT_MASK) << VPFE_PIX_FMT_SHIFT) |
+ VPFE_WEN_ENABLE | VPFE_VDHDEN_ENABLE);
+
+ /* Enable and configure aLaw register if needed */
+ if (config_params->alaw.enable) {
+ val = ((config_params->alaw.gamma_wd &
+ VPFE_ALAW_GAMMA_WD_MASK) | VPFE_ALAW_ENABLE);
+ vpfe_reg_write(ccdc, val, VPFE_ALAW);
+ vpfe_dbg(3, vpfe, "\nWriting 0x%x to ALAW...\n", val);
+ }
+
+ /* Configure video window */
+ vpfe_ccdc_setwin(ccdc, ¶ms->win, params->frm_fmt,
+ params->bytesperpixel);
+
+ /* Configure Black Clamp */
+ vpfe_ccdc_config_black_clamp(ccdc, &config_params->blk_clamp);
+
+ /* Configure Black level compensation */
+ vpfe_ccdc_config_black_compense(ccdc, &config_params->blk_comp);
+
+ /* If data size is 8 bit then pack the data */
+ if ((config_params->data_sz == VPFE_CCDC_DATA_8BITS) ||
+ config_params->alaw.enable)
+ syn_mode |= VPFE_DATA_PACK_ENABLE;
+
+ /*
+ * Configure Horizontal offset register. If pack 8 is enabled then
+ * 1 pixel will take 1 byte
+ */
+ vpfe_reg_write(ccdc, params->bytesperline, VPFE_HSIZE_OFF);
+
+ vpfe_dbg(3, vpfe, "Writing %d (%x) to HSIZE_OFF\n",
+ params->bytesperline, params->bytesperline);
+
+ /* Set value for SDOFST */
+ if (params->frm_fmt == CCDC_FRMFMT_INTERLACED) {
+ if (params->image_invert_enable) {
+ /* For interlace inverse mode */
+ vpfe_reg_write(ccdc, VPFE_INTERLACED_IMAGE_INVERT,
+ VPFE_SDOFST);
+ } else {
+ /* For interlace non inverse mode */
+ vpfe_reg_write(ccdc, VPFE_INTERLACED_NO_IMAGE_INVERT,
+ VPFE_SDOFST);
+ }
+ } else if (params->frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
+ vpfe_reg_write(ccdc, VPFE_PROGRESSIVE_NO_IMAGE_INVERT,
+ VPFE_SDOFST);
+ }
+
+ vpfe_reg_write(ccdc, syn_mode, VPFE_SYNMODE);
+
+ vpfe_reg_dump(ccdc);
+}
+
+static inline int
+vpfe_ccdc_set_buftype(struct vpfe_ccdc *ccdc,
+ enum ccdc_buftype buf_type)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ ccdc->ccdc_cfg.bayer.buf_type = buf_type;
+ else
+ ccdc->ccdc_cfg.ycbcr.buf_type = buf_type;
+
+ return 0;
+}
+
+static inline enum ccdc_buftype vpfe_ccdc_get_buftype(struct vpfe_ccdc *ccdc)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ return ccdc->ccdc_cfg.bayer.buf_type;
+
+ return ccdc->ccdc_cfg.ycbcr.buf_type;
+}
+
+static int vpfe_ccdc_set_pixel_format(struct vpfe_ccdc *ccdc, u32 pixfmt)
+{
+ struct vpfe_device *vpfe = to_vpfe(ccdc);
+
+ vpfe_dbg(1, vpfe, "%s: if_type: %d, pixfmt:%s\n",
+ __func__, ccdc->ccdc_cfg.if_type, print_fourcc(pixfmt));
+
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
+ ccdc->ccdc_cfg.bayer.pix_fmt = CCDC_PIXFMT_RAW;
+ /*
+ * Need to clear it in case it was left on
+ * after the last capture.
+ */
+ ccdc->ccdc_cfg.bayer.config_params.alaw.enable = 0;
+
+ switch (pixfmt) {
+ case V4L2_PIX_FMT_SBGGR8:
+ ccdc->ccdc_cfg.bayer.config_params.alaw.enable = 1;
+ break;
+
+ case V4L2_PIX_FMT_YUYV:
+ case V4L2_PIX_FMT_UYVY:
+ case V4L2_PIX_FMT_YUV420:
+ case V4L2_PIX_FMT_NV12:
+ case V4L2_PIX_FMT_RGB565X:
+ break;
+
+ case V4L2_PIX_FMT_SBGGR16:
+ default:
+ return -EINVAL;
+ }
+ } else {
+ switch (pixfmt) {
+ case V4L2_PIX_FMT_YUYV:
+ ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_YCBYCR;
+ break;
+
+ case V4L2_PIX_FMT_UYVY:
+ ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static u32 vpfe_ccdc_get_pixel_format(struct vpfe_ccdc *ccdc)
+{
+ u32 pixfmt;
+
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
+ pixfmt = V4L2_PIX_FMT_YUYV;
+ } else {
+ if (ccdc->ccdc_cfg.ycbcr.pix_order == CCDC_PIXORDER_YCBYCR)
+ pixfmt = V4L2_PIX_FMT_YUYV;
+ else
+ pixfmt = V4L2_PIX_FMT_UYVY;
+ }
+
+ return pixfmt;
+}
+
+static int
+vpfe_ccdc_set_image_window(struct vpfe_ccdc *ccdc,
+ struct v4l2_rect *win, unsigned int bpp)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
+ ccdc->ccdc_cfg.bayer.win = *win;
+ ccdc->ccdc_cfg.bayer.bytesperpixel = bpp;
+ ccdc->ccdc_cfg.bayer.bytesperline = ALIGN(win->width * bpp, 32);
+ } else {
+ ccdc->ccdc_cfg.ycbcr.win = *win;
+ ccdc->ccdc_cfg.ycbcr.bytesperpixel = bpp;
+ ccdc->ccdc_cfg.ycbcr.bytesperline = ALIGN(win->width * bpp, 32);
+ }
+
+ return 0;
+}
+
+static inline void
+vpfe_ccdc_get_image_window(struct vpfe_ccdc *ccdc,
+ struct v4l2_rect *win)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ *win = ccdc->ccdc_cfg.bayer.win;
+ else
+ *win = ccdc->ccdc_cfg.ycbcr.win;
+}
+
+static inline unsigned int vpfe_ccdc_get_line_length(struct vpfe_ccdc *ccdc)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ return ccdc->ccdc_cfg.bayer.bytesperline;
+
+ return ccdc->ccdc_cfg.ycbcr.bytesperline;
+}
+
+static inline int
+vpfe_ccdc_set_frame_format(struct vpfe_ccdc *ccdc,
+ enum ccdc_frmfmt frm_fmt)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ ccdc->ccdc_cfg.bayer.frm_fmt = frm_fmt;
+ else
+ ccdc->ccdc_cfg.ycbcr.frm_fmt = frm_fmt;
+
+ return 0;
+}
+
+static inline enum ccdc_frmfmt
+vpfe_ccdc_get_frame_format(struct vpfe_ccdc *ccdc)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ return ccdc->ccdc_cfg.bayer.frm_fmt;
+
+ return ccdc->ccdc_cfg.ycbcr.frm_fmt;
+}
+
+static inline int vpfe_ccdc_getfid(struct vpfe_ccdc *ccdc)
+{
+ return (vpfe_reg_read(ccdc, VPFE_SYNMODE) >> 15) & 1;
+}
+
+static inline void vpfe_set_sdr_addr(struct vpfe_ccdc *ccdc, unsigned long addr)
+{
+ vpfe_reg_write(ccdc, addr & 0xffffffe0, VPFE_SDR_ADDR);
+}
+
+static int vpfe_ccdc_set_hw_if_params(struct vpfe_ccdc *ccdc,
+ struct vpfe_hw_if_param *params)
+{
+ struct vpfe_device *vpfe = to_vpfe(ccdc);
+
+ ccdc->ccdc_cfg.if_type = params->if_type;
+
+ switch (params->if_type) {
+ case VPFE_BT656:
+ case VPFE_YCBCR_SYNC_16:
+ case VPFE_YCBCR_SYNC_8:
+ case VPFE_BT656_10BIT:
+ ccdc->ccdc_cfg.ycbcr.vd_pol = params->vdpol;
+ ccdc->ccdc_cfg.ycbcr.hd_pol = params->hdpol;
+ break;
+
+ case VPFE_RAW_BAYER:
+ ccdc->ccdc_cfg.bayer.vd_pol = params->vdpol;
+ ccdc->ccdc_cfg.bayer.hd_pol = params->hdpol;
+ if (params->bus_width == 10)
+ ccdc->ccdc_cfg.bayer.config_params.data_sz =
+ VPFE_CCDC_DATA_10BITS;
+ else
+ ccdc->ccdc_cfg.bayer.config_params.data_sz =
+ VPFE_CCDC_DATA_8BITS;
+ vpfe_dbg(1, vpfe, "params.bus_width: %d\n",
+ params->bus_width);
+ vpfe_dbg(1, vpfe, "config_params.data_sz: %d\n",
+ ccdc->ccdc_cfg.bayer.config_params.data_sz);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void vpfe_clear_intr(struct vpfe_ccdc *ccdc, int vdint)
+{
+ unsigned int vpfe_int_status;
+
+ vpfe_int_status = vpfe_reg_read(ccdc, VPFE_IRQ_STS);
+
+ switch (vdint) {
+ /* VD0 interrupt */
+ case VPFE_VDINT0:
+ vpfe_int_status &= ~VPFE_VDINT0;
+ vpfe_int_status |= VPFE_VDINT0;
+ break;
+
+ /* VD1 interrupt */
+ case VPFE_VDINT1:
+ vpfe_int_status &= ~VPFE_VDINT1;
+ vpfe_int_status |= VPFE_VDINT1;
+ break;
+
+ /* VD2 interrupt */
+ case VPFE_VDINT2:
+ vpfe_int_status &= ~VPFE_VDINT2;
+ vpfe_int_status |= VPFE_VDINT2;
+ break;
+
+ /* Clear all interrupts */
+ default:
+ vpfe_int_status &= ~(VPFE_VDINT0 |
+ VPFE_VDINT1 |
+ VPFE_VDINT2);
+ vpfe_int_status |= (VPFE_VDINT0 |
+ VPFE_VDINT1 |
+ VPFE_VDINT2);
+ break;
+ }
+ /* Clear specific VDINT from the status register */
+ vpfe_reg_write(ccdc, vpfe_int_status, VPFE_IRQ_STS);
+
+ vpfe_int_status = vpfe_reg_read(ccdc, VPFE_IRQ_STS);
+
+ /* Acknowledge that we are done with all interrupts */
+ vpfe_reg_write(ccdc, 1, VPFE_IRQ_EOI);
+}
+
+static void vpfe_ccdc_config_defaults(struct vpfe_ccdc *ccdc)
+{
+ ccdc->ccdc_cfg.if_type = VPFE_RAW_BAYER;
+
+ ccdc->ccdc_cfg.ycbcr.pix_fmt = CCDC_PIXFMT_YCBCR_8BIT;
+ ccdc->ccdc_cfg.ycbcr.frm_fmt = CCDC_FRMFMT_INTERLACED;
+ ccdc->ccdc_cfg.ycbcr.fid_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.ycbcr.vd_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.ycbcr.hd_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
+ ccdc->ccdc_cfg.ycbcr.buf_type = CCDC_BUFTYPE_FLD_INTERLEAVED;
+
+ ccdc->ccdc_cfg.ycbcr.win.left = 0;
+ ccdc->ccdc_cfg.ycbcr.win.top = 0;
+ ccdc->ccdc_cfg.ycbcr.win.width = 720;
+ ccdc->ccdc_cfg.ycbcr.win.height = 576;
+ ccdc->ccdc_cfg.ycbcr.bt656_enable = 1;
+
+ ccdc->ccdc_cfg.bayer.pix_fmt = CCDC_PIXFMT_RAW;
+ ccdc->ccdc_cfg.bayer.frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
+ ccdc->ccdc_cfg.bayer.fid_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.bayer.vd_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.bayer.hd_pol = VPFE_PINPOL_POSITIVE;
+
+ ccdc->ccdc_cfg.bayer.win.left = 0;
+ ccdc->ccdc_cfg.bayer.win.top = 0;
+ ccdc->ccdc_cfg.bayer.win.width = 800;
+ ccdc->ccdc_cfg.bayer.win.height = 600;
+ ccdc->ccdc_cfg.bayer.config_params.data_sz = VPFE_CCDC_DATA_8BITS;
+ ccdc->ccdc_cfg.bayer.config_params.alaw.gamma_wd =
+ VPFE_CCDC_GAMMA_BITS_09_0;
+}
+
+/*
+ * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings
+ */
+static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe,
+ struct v4l2_format *f)
+{
+ struct v4l2_rect image_win;
+ enum ccdc_buftype buf_type;
+ enum ccdc_frmfmt frm_fmt;
+
+ memset(f, 0, sizeof(*f));
+ f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ vpfe_ccdc_get_image_window(&vpfe->ccdc, &image_win);
+ f->fmt.pix.width = image_win.width;
+ f->fmt.pix.height = image_win.height;
+ f->fmt.pix.bytesperline = vpfe_ccdc_get_line_length(&vpfe->ccdc);
+ f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
+ f->fmt.pix.height;
+ buf_type = vpfe_ccdc_get_buftype(&vpfe->ccdc);
+ f->fmt.pix.pixelformat = vpfe_ccdc_get_pixel_format(&vpfe->ccdc);
+ frm_fmt = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
+
+ if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
+ f->fmt.pix.field = V4L2_FIELD_NONE;
+ } else if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
+ if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) {
+ f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+ } else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED) {
+ f->fmt.pix.field = V4L2_FIELD_SEQ_TB;
+ } else {
+ vpfe_err(vpfe, "Invalid buf_type\n");
+ return -EINVAL;
+ }
+ } else {
+ vpfe_err(vpfe, "Invalid frm_fmt\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe)
+{
+ enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED;
+ u32 bpp;
+ int ret = 0;
+
+ vpfe_dbg(1, vpfe, "pixelformat: %s\n",
+ print_fourcc(vpfe->fmt.fmt.pix.pixelformat));
+
+ if (vpfe_ccdc_set_pixel_format(&vpfe->ccdc,
+ vpfe->fmt.fmt.pix.pixelformat) < 0) {
+ vpfe_err(vpfe, "couldn't set pix format in ccdc\n");
+ return -EINVAL;
+ }
+
+ /* configure the image window */
+ bpp = __get_bytesperpixel(vpfe, vpfe->current_vpfe_fmt);
+ vpfe_ccdc_set_image_window(&vpfe->ccdc, &vpfe->crop, bpp);
+
+ switch (vpfe->fmt.fmt.pix.field) {
+ case V4L2_FIELD_INTERLACED:
+ /* do nothing, since it is default */
+ ret = vpfe_ccdc_set_buftype(
+ &vpfe->ccdc,
+ CCDC_BUFTYPE_FLD_INTERLEAVED);
+ break;
+
+ case V4L2_FIELD_NONE:
+ frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
+ /* buffer type only applicable for interlaced scan */
+ break;
+
+ case V4L2_FIELD_SEQ_TB:
+ ret = vpfe_ccdc_set_buftype(
+ &vpfe->ccdc,
+ CCDC_BUFTYPE_FLD_SEPARATED);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (ret)
+ return ret;
+
+ return vpfe_ccdc_set_frame_format(&vpfe->ccdc, frm_fmt);
+}
+
+/*
+ * vpfe_config_image_format()
+ * For a given standard, this functions sets up the default
+ * pix format & crop values in the vpfe device and ccdc. It first
+ * starts with defaults based values from the standard table.
+ * It then checks if sub device supports get_fmt and then override the
+ * values based on that.Sets crop values to match with scan resolution
+ * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the
+ * values in ccdc
+ */
+static int vpfe_config_image_format(struct vpfe_device *vpfe,
+ v4l2_std_id std_id)
+{
+ struct vpfe_fmt *fmt;
+ struct v4l2_mbus_framefmt mbus_fmt;
+ int i, ret;
+
+ for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) {
+ if (vpfe_standards[i].std_id & std_id) {
+ vpfe->std_info.active_pixels =
+ vpfe_standards[i].width;
+ vpfe->std_info.active_lines =
+ vpfe_standards[i].height;
+ vpfe->std_info.frame_format =
+ vpfe_standards[i].frame_format;
+ vpfe->std_index = i;
+
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(vpfe_standards)) {
+ vpfe_err(vpfe, "standard not supported\n");
+ return -EINVAL;
+ }
+
+ ret = __subdev_get_format(vpfe, &mbus_fmt);
+ if (ret)
+ return ret;
+
+ fmt = find_format_by_code(vpfe, mbus_fmt.code);
+ if (!fmt) {
+ vpfe_dbg(3, vpfe, "mbus code format (0x%08x) not found.\n",
+ mbus_fmt.code);
+ return -EINVAL;
+ }
+
+ /* Save current subdev format */
+ v4l2_fill_pix_format(&vpfe->fmt.fmt.pix, &mbus_fmt);
+ vpfe->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ vpfe->fmt.fmt.pix.pixelformat = fmt->fourcc;
+ vpfe_calc_format_size(vpfe, fmt, &vpfe->fmt);
+ vpfe->current_vpfe_fmt = fmt;
+
+ /* Update the crop window based on found values */
+ vpfe->crop.top = 0;
+ vpfe->crop.left = 0;
+ vpfe->crop.width = mbus_fmt.width;
+ vpfe->crop.height = mbus_fmt.height;
+
+ return vpfe_config_ccdc_image_format(vpfe);
+}
+
+static int vpfe_initialize_device(struct vpfe_device *vpfe)
+{
+ struct vpfe_subdev_info *sdinfo;
+ int ret;
+
+ sdinfo = &vpfe->cfg->sub_devs[0];
+ sdinfo->sd = vpfe->sd[0];
+ vpfe->current_input = 0;
+ vpfe->std_index = 0;
+ /* Configure the default format information */
+ ret = vpfe_config_image_format(vpfe,
+ vpfe_standards[vpfe->std_index].std_id);
+ if (ret)
+ return ret;
+
+ ret = pm_runtime_resume_and_get(vpfe->pdev);
+ if (ret < 0)
+ return ret;
+
+ vpfe_config_enable(&vpfe->ccdc, 1);
+
+ vpfe_ccdc_restore_defaults(&vpfe->ccdc);
+
+ /* Clear all VPFE interrupts */
+ vpfe_clear_intr(&vpfe->ccdc, -1);
+
+ return ret;
+}
+
+/*
+ * vpfe_release : This function is based on the vb2_fop_release
+ * helper function.
+ * It has been augmented to handle module power management,
+ * by disabling/enabling h/w module fcntl clock when necessary.
+ */
+static int vpfe_release(struct file *file)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ bool fh_singular;
+ int ret;
+
+ mutex_lock(&vpfe->lock);
+
+ /* Save the singular status before we call the clean-up helper */
+ fh_singular = v4l2_fh_is_singular_file(file);
+
+ /* the release helper will cleanup any on-going streaming */
+ ret = _vb2_fop_release(file, NULL);
+
+ /*
+ * If this was the last open file.
+ * Then de-initialize hw module.
+ */
+ if (fh_singular)
+ vpfe_ccdc_close(&vpfe->ccdc, vpfe->pdev);
+
+ mutex_unlock(&vpfe->lock);
+
+ return ret;
+}
+
+/*
+ * vpfe_open : This function is based on the v4l2_fh_open helper function.
+ * It has been augmented to handle module power management,
+ * by disabling/enabling h/w module fcntl clock when necessary.
+ */
+static int vpfe_open(struct file *file)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ int ret;
+
+ mutex_lock(&vpfe->lock);
+
+ ret = v4l2_fh_open(file);
+ if (ret) {
+ vpfe_err(vpfe, "v4l2_fh_open failed\n");
+ goto unlock;
+ }
+
+ if (!v4l2_fh_is_singular_file(file))
+ goto unlock;
+
+ if (vpfe_initialize_device(vpfe)) {
+ v4l2_fh_release(file);
+ ret = -ENODEV;
+ }
+
+unlock:
+ mutex_unlock(&vpfe->lock);
+ return ret;
+}
+
+/**
+ * vpfe_schedule_next_buffer: set next buffer address for capture
+ * @vpfe : ptr to vpfe device
+ *
+ * This function will get next buffer from the dma queue and
+ * set the buffer address in the vpfe register for capture.
+ * the buffer is marked active
+ */
+static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe)
+{
+ dma_addr_t addr;
+
+ spin_lock(&vpfe->dma_queue_lock);
+ if (list_empty(&vpfe->dma_queue)) {
+ spin_unlock(&vpfe->dma_queue_lock);
+ return;
+ }
+
+ vpfe->next_frm = list_entry(vpfe->dma_queue.next,
+ struct vpfe_cap_buffer, list);
+ list_del(&vpfe->next_frm->list);
+ spin_unlock(&vpfe->dma_queue_lock);
+
+ addr = vb2_dma_contig_plane_dma_addr(&vpfe->next_frm->vb.vb2_buf, 0);
+ vpfe_set_sdr_addr(&vpfe->ccdc, addr);
+}
+
+static inline void vpfe_schedule_bottom_field(struct vpfe_device *vpfe)
+{
+ dma_addr_t addr;
+
+ addr = vb2_dma_contig_plane_dma_addr(&vpfe->next_frm->vb.vb2_buf, 0) +
+ vpfe->field_off;
+
+ vpfe_set_sdr_addr(&vpfe->ccdc, addr);
+}
+
+/*
+ * vpfe_process_buffer_complete: process a completed buffer
+ * @vpfe : ptr to vpfe device
+ *
+ * This function time stamp the buffer and mark it as DONE. It also
+ * wake up any process waiting on the QUEUE and set the next buffer
+ * as current
+ */
+static inline void vpfe_process_buffer_complete(struct vpfe_device *vpfe)
+{
+ vpfe->cur_frm->vb.vb2_buf.timestamp = ktime_get_ns();
+ vpfe->cur_frm->vb.field = vpfe->fmt.fmt.pix.field;
+ vpfe->cur_frm->vb.sequence = vpfe->sequence++;
+ vb2_buffer_done(&vpfe->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
+ vpfe->cur_frm = vpfe->next_frm;
+}
+
+static void vpfe_handle_interlaced_irq(struct vpfe_device *vpfe,
+ enum v4l2_field field)
+{
+ int fid;
+
+ /* interlaced or TB capture check which field
+ * we are in hardware
+ */
+ fid = vpfe_ccdc_getfid(&vpfe->ccdc);
+
+ /* switch the software maintained field id */
+ vpfe->field ^= 1;
+ if (fid == vpfe->field) {
+ /* we are in-sync here,continue */
+ if (fid == 0) {
+ /*
+ * One frame is just being captured. If the
+ * next frame is available, release the
+ * current frame and move on
+ */
+ if (vpfe->cur_frm != vpfe->next_frm)
+ vpfe_process_buffer_complete(vpfe);
+
+ if (vpfe->stopping)
+ return;
+
+ /*
+ * based on whether the two fields are stored
+ * interleave or separately in memory,
+ * reconfigure the CCDC memory address
+ */
+ if (field == V4L2_FIELD_SEQ_TB)
+ vpfe_schedule_bottom_field(vpfe);
+ } else {
+ /*
+ * if one field is just being captured configure
+ * the next frame get the next frame from the empty
+ * queue if no frame is available hold on to the
+ * current buffer
+ */
+ if (vpfe->cur_frm == vpfe->next_frm)
+ vpfe_schedule_next_buffer(vpfe);
+ }
+ } else if (fid == 0) {
+ /*
+ * out of sync. Recover from any hardware out-of-sync.
+ * May loose one frame
+ */
+ vpfe->field = fid;
+ }
+}
+
+/*
+ * vpfe_isr : ISR handler for vpfe capture (VINT0)
+ * @irq: irq number
+ * @dev_id: dev_id ptr
+ *
+ * It changes status of the captured buffer, takes next buffer from the queue
+ * and sets its address in VPFE registers
+ */
+static irqreturn_t vpfe_isr(int irq, void *dev)
+{
+ struct vpfe_device *vpfe = (struct vpfe_device *)dev;
+ enum v4l2_field field = vpfe->fmt.fmt.pix.field;
+ int intr_status, stopping = vpfe->stopping;
+
+ intr_status = vpfe_reg_read(&vpfe->ccdc, VPFE_IRQ_STS);
+
+ if (intr_status & VPFE_VDINT0) {
+ if (field == V4L2_FIELD_NONE) {
+ if (vpfe->cur_frm != vpfe->next_frm)
+ vpfe_process_buffer_complete(vpfe);
+ } else {
+ vpfe_handle_interlaced_irq(vpfe, field);
+ }
+ if (stopping) {
+ vpfe->stopping = false;
+ complete(&vpfe->capture_stop);
+ }
+ }
+
+ if (intr_status & VPFE_VDINT1 && !stopping) {
+ if (field == V4L2_FIELD_NONE &&
+ vpfe->cur_frm == vpfe->next_frm)
+ vpfe_schedule_next_buffer(vpfe);
+ }
+
+ vpfe_clear_intr(&vpfe->ccdc, intr_status);
+
+ return IRQ_HANDLED;
+}
+
+static inline void vpfe_detach_irq(struct vpfe_device *vpfe)
+{
+ unsigned int intr = VPFE_VDINT0;
+ enum ccdc_frmfmt frame_format;
+
+ frame_format = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
+ if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
+ intr |= VPFE_VDINT1;
+
+ vpfe_reg_write(&vpfe->ccdc, intr, VPFE_IRQ_EN_CLR);
+}
+
+static inline void vpfe_attach_irq(struct vpfe_device *vpfe)
+{
+ unsigned int intr = VPFE_VDINT0;
+ enum ccdc_frmfmt frame_format;
+
+ frame_format = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
+ if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
+ intr |= VPFE_VDINT1;
+
+ vpfe_reg_write(&vpfe->ccdc, intr, VPFE_IRQ_EN_SET);
+}
+
+static int vpfe_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ strscpy(cap->driver, VPFE_MODULE_NAME, sizeof(cap->driver));
+ strscpy(cap->card, "TI AM437x VPFE", sizeof(cap->card));
+ snprintf(cap->bus_info, sizeof(cap->bus_info),
+ "platform:%s", vpfe->v4l2_dev.name);
+ return 0;
+}
+
+/* get the format set at output pad of the adjacent subdev */
+static int __subdev_get_format(struct vpfe_device *vpfe,
+ struct v4l2_mbus_framefmt *fmt)
+{
+ struct v4l2_subdev *sd = vpfe->current_subdev->sd;
+ struct v4l2_subdev_format sd_fmt;
+ struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
+ int ret;
+
+ sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ sd_fmt.pad = 0;
+
+ ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sd_fmt);
+ if (ret)
+ return ret;
+
+ *fmt = *mbus_fmt;
+
+ vpfe_dbg(1, vpfe, "%s: %dx%d code:%04X\n", __func__,
+ fmt->width, fmt->height, fmt->code);
+
+ return 0;
+}
+
+/* set the format at output pad of the adjacent subdev */
+static int __subdev_set_format(struct vpfe_device *vpfe,
+ struct v4l2_mbus_framefmt *fmt)
+{
+ struct v4l2_subdev *sd = vpfe->current_subdev->sd;
+ struct v4l2_subdev_format sd_fmt;
+ struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
+ int ret;
+
+ sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ sd_fmt.pad = 0;
+ *mbus_fmt = *fmt;
+
+ ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sd_fmt);
+ if (ret)
+ return ret;
+
+ vpfe_dbg(1, vpfe, "%s %dx%d code:%04X\n", __func__,
+ fmt->width, fmt->height, fmt->code);
+
+ return 0;
+}
+
+static int vpfe_calc_format_size(struct vpfe_device *vpfe,
+ const struct vpfe_fmt *fmt,
+ struct v4l2_format *f)
+{
+ u32 bpp;
+
+ if (!fmt) {
+ vpfe_dbg(3, vpfe, "No vpfe_fmt provided!\n");
+ return -EINVAL;
+ }
+
+ bpp = __get_bytesperpixel(vpfe, fmt);
+
+ /* pitch should be 32 bytes aligned */
+ f->fmt.pix.bytesperline = ALIGN(f->fmt.pix.width * bpp, 32);
+ f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
+ f->fmt.pix.height;
+
+ vpfe_dbg(3, vpfe, "%s: fourcc: %s size: %dx%d bpl:%d img_size:%d\n",
+ __func__, print_fourcc(f->fmt.pix.pixelformat),
+ f->fmt.pix.width, f->fmt.pix.height,
+ f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
+
+ return 0;
+}
+
+static int vpfe_g_fmt(struct file *file, void *priv,
+ struct v4l2_format *fmt)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ *fmt = vpfe->fmt;
+
+ return 0;
+}
+
+static int vpfe_enum_fmt(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+ struct vpfe_fmt *fmt;
+
+ sdinfo = vpfe->current_subdev;
+ if (!sdinfo->sd)
+ return -EINVAL;
+
+ if (f->index >= vpfe->num_active_fmt)
+ return -EINVAL;
+
+ fmt = vpfe->active_fmt[f->index];
+
+ f->pixelformat = fmt->fourcc;
+
+ vpfe_dbg(1, vpfe, "%s: mbus index: %d code: %x pixelformat: %s\n",
+ __func__, f->index, fmt->code, print_fourcc(fmt->fourcc));
+
+ return 0;
+}
+
+static int vpfe_try_fmt(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct v4l2_subdev *sd = vpfe->current_subdev->sd;
+ const struct vpfe_fmt *fmt;
+ struct v4l2_subdev_frame_size_enum fse;
+ int ret, found;
+
+ fmt = find_format_by_pix(vpfe, f->fmt.pix.pixelformat);
+ if (!fmt) {
+ /* default to first entry */
+ vpfe_dbg(3, vpfe, "Invalid pixel code: %x, default used instead\n",
+ f->fmt.pix.pixelformat);
+ fmt = vpfe->active_fmt[0];
+ f->fmt.pix.pixelformat = fmt->fourcc;
+ }
+
+ f->fmt.pix.field = vpfe->fmt.fmt.pix.field;
+
+ /* check for/find a valid width/height */
+ ret = 0;
+ found = false;
+ fse.pad = 0;
+ fse.code = fmt->code;
+ fse.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ for (fse.index = 0; ; fse.index++) {
+ ret = v4l2_subdev_call(sd, pad, enum_frame_size,
+ NULL, &fse);
+ if (ret)
+ break;
+
+ if (f->fmt.pix.width == fse.max_width &&
+ f->fmt.pix.height == fse.max_height) {
+ found = true;
+ break;
+ } else if (f->fmt.pix.width >= fse.min_width &&
+ f->fmt.pix.width <= fse.max_width &&
+ f->fmt.pix.height >= fse.min_height &&
+ f->fmt.pix.height <= fse.max_height) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ /* use existing values as default */
+ f->fmt.pix.width = vpfe->fmt.fmt.pix.width;
+ f->fmt.pix.height = vpfe->fmt.fmt.pix.height;
+ }
+
+ /*
+ * Use current colorspace for now, it will get
+ * updated properly during s_fmt
+ */
+ f->fmt.pix.colorspace = vpfe->fmt.fmt.pix.colorspace;
+ return vpfe_calc_format_size(vpfe, fmt, f);
+}
+
+static int vpfe_s_fmt(struct file *file, void *priv,
+ struct v4l2_format *fmt)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_fmt *f;
+ struct v4l2_mbus_framefmt mbus_fmt;
+ int ret;
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+
+ ret = vpfe_try_fmt(file, priv, fmt);
+ if (ret < 0)
+ return ret;
+
+ f = find_format_by_pix(vpfe, fmt->fmt.pix.pixelformat);
+
+ v4l2_fill_mbus_format(&mbus_fmt, &fmt->fmt.pix, f->code);
+
+ ret = __subdev_set_format(vpfe, &mbus_fmt);
+ if (ret)
+ return ret;
+
+ /* Just double check nothing has gone wrong */
+ if (mbus_fmt.code != f->code) {
+ vpfe_dbg(3, vpfe,
+ "%s subdev changed format on us, this should not happen\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ v4l2_fill_pix_format(&vpfe->fmt.fmt.pix, &mbus_fmt);
+ vpfe->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ vpfe->fmt.fmt.pix.pixelformat = f->fourcc;
+ vpfe_calc_format_size(vpfe, f, &vpfe->fmt);
+ *fmt = vpfe->fmt;
+ vpfe->current_vpfe_fmt = f;
+
+ /* Update the crop window based on found values */
+ vpfe->crop.width = fmt->fmt.pix.width;
+ vpfe->crop.height = fmt->fmt.pix.height;
+
+ /* set image capture parameters in the ccdc */
+ return vpfe_config_ccdc_image_format(vpfe);
+}
+
+static int vpfe_enum_size(struct file *file, void *priv,
+ struct v4l2_frmsizeenum *fsize)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct v4l2_subdev_frame_size_enum fse;
+ struct v4l2_subdev *sd = vpfe->current_subdev->sd;
+ struct vpfe_fmt *fmt;
+ int ret;
+
+ /* check for valid format */
+ fmt = find_format_by_pix(vpfe, fsize->pixel_format);
+ if (!fmt) {
+ vpfe_dbg(3, vpfe, "Invalid pixel code: %x\n",
+ fsize->pixel_format);
+ return -EINVAL;
+ }
+
+ memset(fsize->reserved, 0x0, sizeof(fsize->reserved));
+
+ memset(&fse, 0x0, sizeof(fse));
+ fse.index = fsize->index;
+ fse.pad = 0;
+ fse.code = fmt->code;
+ fse.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ ret = v4l2_subdev_call(sd, pad, enum_frame_size, NULL, &fse);
+ if (ret)
+ return ret;
+
+ vpfe_dbg(1, vpfe, "%s: index: %d code: %x W:[%d,%d] H:[%d,%d]\n",
+ __func__, fse.index, fse.code, fse.min_width, fse.max_width,
+ fse.min_height, fse.max_height);
+
+ fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
+ fsize->discrete.width = fse.max_width;
+ fsize->discrete.height = fse.max_height;
+
+ vpfe_dbg(1, vpfe, "%s: index: %d pixformat: %s size: %dx%d\n",
+ __func__, fsize->index, print_fourcc(fsize->pixel_format),
+ fsize->discrete.width, fsize->discrete.height);
+
+ return 0;
+}
+
+/*
+ * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a
+ * given app input index
+ */
+static int
+vpfe_get_subdev_input_index(struct vpfe_device *vpfe,
+ int *subdev_index,
+ int *subdev_input_index,
+ int app_input_index)
+{
+ int i, j = 0;
+
+ for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
+ if (app_input_index < (j + 1)) {
+ *subdev_index = i;
+ *subdev_input_index = app_input_index - j;
+ return 0;
+ }
+ j++;
+ }
+ return -EINVAL;
+}
+
+/*
+ * vpfe_get_app_input - Get app input index for a given subdev input index
+ * driver stores the input index of the current sub device and translate it
+ * when application request the current input
+ */
+static int vpfe_get_app_input_index(struct vpfe_device *vpfe,
+ int *app_input_index)
+{
+ struct vpfe_config *cfg = vpfe->cfg;
+ struct vpfe_subdev_info *sdinfo;
+ struct i2c_client *client;
+ struct i2c_client *curr_client;
+ int i, j = 0;
+
+ curr_client = v4l2_get_subdevdata(vpfe->current_subdev->sd);
+ for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
+ sdinfo = &cfg->sub_devs[i];
+ client = v4l2_get_subdevdata(sdinfo->sd);
+ if (client->addr == curr_client->addr &&
+ client->adapter->nr == curr_client->adapter->nr) {
+ if (vpfe->current_input >= 1)
+ return -1;
+ *app_input_index = j + vpfe->current_input;
+ return 0;
+ }
+ j++;
+ }
+ return -EINVAL;
+}
+
+static int vpfe_enum_input(struct file *file, void *priv,
+ struct v4l2_input *inp)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+ int subdev, index;
+
+ if (vpfe_get_subdev_input_index(vpfe, &subdev, &index,
+ inp->index) < 0) {
+ vpfe_dbg(1, vpfe,
+ "input information not found for the subdev\n");
+ return -EINVAL;
+ }
+ sdinfo = &vpfe->cfg->sub_devs[subdev];
+ *inp = sdinfo->inputs[index];
+
+ return 0;
+}
+
+static int vpfe_g_input(struct file *file, void *priv, unsigned int *index)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ return vpfe_get_app_input_index(vpfe, index);
+}
+
+/* Assumes caller is holding vpfe_dev->lock */
+static int vpfe_set_input(struct vpfe_device *vpfe, unsigned int index)
+{
+ int subdev_index = 0, inp_index = 0;
+ struct vpfe_subdev_info *sdinfo;
+ struct vpfe_route *route;
+ u32 input, output;
+ int ret;
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+ ret = vpfe_get_subdev_input_index(vpfe,
+ &subdev_index,
+ &inp_index,
+ index);
+ if (ret < 0) {
+ vpfe_err(vpfe, "invalid input index: %d\n", index);
+ goto get_out;
+ }
+
+ sdinfo = &vpfe->cfg->sub_devs[subdev_index];
+ sdinfo->sd = vpfe->sd[subdev_index];
+ route = &sdinfo->routes[inp_index];
+ if (route && sdinfo->can_route) {
+ input = route->input;
+ output = route->output;
+ if (sdinfo->sd) {
+ ret = v4l2_subdev_call(sdinfo->sd, video,
+ s_routing, input, output, 0);
+ if (ret) {
+ vpfe_err(vpfe, "s_routing failed\n");
+ ret = -EINVAL;
+ goto get_out;
+ }
+ }
+
+ }
+
+ vpfe->current_subdev = sdinfo;
+ if (sdinfo->sd)
+ vpfe->v4l2_dev.ctrl_handler = sdinfo->sd->ctrl_handler;
+ vpfe->current_input = index;
+ vpfe->std_index = 0;
+
+ /* set the bus/interface parameter for the sub device in ccdc */
+ ret = vpfe_ccdc_set_hw_if_params(&vpfe->ccdc, &sdinfo->vpfe_param);
+ if (ret)
+ return ret;
+
+ /* set the default image parameters in the device */
+ return vpfe_config_image_format(vpfe,
+ vpfe_standards[vpfe->std_index].std_id);
+
+get_out:
+ return ret;
+}
+
+static int vpfe_s_input(struct file *file, void *priv, unsigned int index)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ return vpfe_set_input(vpfe, index);
+}
+
+static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+
+ sdinfo = vpfe->current_subdev;
+ if (!(sdinfo->inputs[0].capabilities & V4L2_IN_CAP_STD))
+ return -ENODATA;
+
+ /* Call querystd function of decoder device */
+ return v4l2_device_call_until_err(&vpfe->v4l2_dev, sdinfo->grp_id,
+ video, querystd, std_id);
+}
+
+static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+ int ret;
+
+ sdinfo = vpfe->current_subdev;
+ if (!(sdinfo->inputs[0].capabilities & V4L2_IN_CAP_STD))
+ return -ENODATA;
+
+ /* if trying to set the same std then nothing to do */
+ if (vpfe_standards[vpfe->std_index].std_id == std_id)
+ return 0;
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ ret = -EBUSY;
+ return ret;
+ }
+
+ ret = v4l2_device_call_until_err(&vpfe->v4l2_dev, sdinfo->grp_id,
+ video, s_std, std_id);
+ if (ret < 0) {
+ vpfe_err(vpfe, "Failed to set standard\n");
+ return ret;
+ }
+ ret = vpfe_config_image_format(vpfe, std_id);
+
+ return ret;
+}
+
+static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+
+ sdinfo = vpfe->current_subdev;
+ if (sdinfo->inputs[0].capabilities != V4L2_IN_CAP_STD)
+ return -ENODATA;
+
+ *std_id = vpfe_standards[vpfe->std_index].std_id;
+
+ return 0;
+}
+
+/*
+ * vpfe_calculate_offsets : This function calculates buffers offset
+ * for top and bottom field
+ */
+static void vpfe_calculate_offsets(struct vpfe_device *vpfe)
+{
+ struct v4l2_rect image_win;
+
+ vpfe_ccdc_get_image_window(&vpfe->ccdc, &image_win);
+ vpfe->field_off = image_win.height * image_win.width;
+}
+
+/*
+ * vpfe_queue_setup - Callback function for buffer setup.
+ * @vq: vb2_queue ptr
+ * @nbuffers: ptr to number of buffers requested by application
+ * @nplanes:: contains number of distinct video planes needed to hold a frame
+ * @sizes[]: contains the size (in bytes) of each plane.
+ * @alloc_devs: ptr to allocation context
+ *
+ * This callback function is called when reqbuf() is called to adjust
+ * the buffer count and buffer size
+ */
+static int vpfe_queue_setup(struct vb2_queue *vq,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], struct device *alloc_devs[])
+{
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
+ unsigned size = vpfe->fmt.fmt.pix.sizeimage;
+
+ if (vq->num_buffers + *nbuffers < 3)
+ *nbuffers = 3 - vq->num_buffers;
+
+ if (*nplanes) {
+ if (sizes[0] < size)
+ return -EINVAL;
+ size = sizes[0];
+ }
+
+ *nplanes = 1;
+ sizes[0] = size;
+
+ vpfe_dbg(1, vpfe,
+ "nbuffers=%d, size=%u\n", *nbuffers, sizes[0]);
+
+ /* Calculate field offset */
+ vpfe_calculate_offsets(vpfe);
+
+ return 0;
+}
+
+/*
+ * vpfe_buffer_prepare : callback function for buffer prepare
+ * @vb: ptr to vb2_buffer
+ *
+ * This is the callback function for buffer prepare when vb2_qbuf()
+ * function is called. The buffer is prepared and user space virtual address
+ * or user address is converted into physical address
+ */
+static int vpfe_buffer_prepare(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vb->vb2_queue);
+
+ vb2_set_plane_payload(vb, 0, vpfe->fmt.fmt.pix.sizeimage);
+
+ if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
+ return -EINVAL;
+
+ vbuf->field = vpfe->fmt.fmt.pix.field;
+
+ return 0;
+}
+
+/*
+ * vpfe_buffer_queue : Callback function to add buffer to DMA queue
+ * @vb: ptr to vb2_buffer
+ */
+static void vpfe_buffer_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vb->vb2_queue);
+ struct vpfe_cap_buffer *buf = to_vpfe_buffer(vbuf);
+ unsigned long flags = 0;
+
+ /* add the buffer to the DMA queue */
+ spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
+ list_add_tail(&buf->list, &vpfe->dma_queue);
+ spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
+}
+
+static void vpfe_return_all_buffers(struct vpfe_device *vpfe,
+ enum vb2_buffer_state state)
+{
+ struct vpfe_cap_buffer *buf, *node;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
+ list_for_each_entry_safe(buf, node, &vpfe->dma_queue, list) {
+ vb2_buffer_done(&buf->vb.vb2_buf, state);
+ list_del(&buf->list);
+ }
+
+ if (vpfe->cur_frm)
+ vb2_buffer_done(&vpfe->cur_frm->vb.vb2_buf, state);
+
+ if (vpfe->next_frm && vpfe->next_frm != vpfe->cur_frm)
+ vb2_buffer_done(&vpfe->next_frm->vb.vb2_buf, state);
+
+ vpfe->cur_frm = NULL;
+ vpfe->next_frm = NULL;
+ spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
+}
+
+/*
+ * vpfe_start_streaming : Starts the DMA engine for streaming
+ * @vb: ptr to vb2_buffer
+ * @count: number of buffers
+ */
+static int vpfe_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
+ struct vpfe_subdev_info *sdinfo;
+ unsigned long flags;
+ unsigned long addr;
+ int ret;
+
+ spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
+
+ vpfe->field = 0;
+ vpfe->sequence = 0;
+
+ sdinfo = vpfe->current_subdev;
+
+ vpfe_attach_irq(vpfe);
+
+ vpfe->stopping = false;
+ init_completion(&vpfe->capture_stop);
+
+ if (vpfe->ccdc.ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ vpfe_ccdc_config_raw(&vpfe->ccdc);
+ else
+ vpfe_ccdc_config_ycbcr(&vpfe->ccdc);
+
+ /* Get the next frame from the buffer queue */
+ vpfe->next_frm = list_entry(vpfe->dma_queue.next,
+ struct vpfe_cap_buffer, list);
+ vpfe->cur_frm = vpfe->next_frm;
+ /* Remove buffer from the buffer queue */
+ list_del(&vpfe->cur_frm->list);
+ spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
+
+ addr = vb2_dma_contig_plane_dma_addr(&vpfe->cur_frm->vb.vb2_buf, 0);
+
+ vpfe_set_sdr_addr(&vpfe->ccdc, (unsigned long)(addr));
+
+ vpfe_pcr_enable(&vpfe->ccdc, 1);
+
+ ret = v4l2_subdev_call(sdinfo->sd, video, s_stream, 1);
+ if (ret < 0) {
+ vpfe_err(vpfe, "Error in attaching interrupt handle\n");
+ goto err;
+ }
+
+ return 0;
+
+err:
+ vpfe_return_all_buffers(vpfe, VB2_BUF_STATE_QUEUED);
+ vpfe_pcr_enable(&vpfe->ccdc, 0);
+ return ret;
+}
+
+/*
+ * vpfe_stop_streaming : Stop the DMA engine
+ * @vq: ptr to vb2_queue
+ *
+ * This callback stops the DMA engine and any remaining buffers
+ * in the DMA queue are released.
+ */
+static void vpfe_stop_streaming(struct vb2_queue *vq)
+{
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
+ struct vpfe_subdev_info *sdinfo;
+ int ret;
+
+ vpfe_pcr_enable(&vpfe->ccdc, 0);
+
+ /* Wait for the last frame to be captured */
+ vpfe->stopping = true;
+ wait_for_completion_timeout(&vpfe->capture_stop,
+ msecs_to_jiffies(250));
+
+ vpfe_detach_irq(vpfe);
+
+ sdinfo = vpfe->current_subdev;
+ ret = v4l2_subdev_call(sdinfo->sd, video, s_stream, 0);
+ if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
+ vpfe_dbg(1, vpfe, "stream off failed in subdev\n");
+
+ /* release all active buffers */
+ vpfe_return_all_buffers(vpfe, VB2_BUF_STATE_ERROR);
+}
+
+static int vpfe_g_pixelaspect(struct file *file, void *priv,
+ int type, struct v4l2_fract *f)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ vpfe->std_index >= ARRAY_SIZE(vpfe_standards))
+ return -EINVAL;
+
+ *f = vpfe_standards[vpfe->std_index].pixelaspect;
+
+ return 0;
+}
+
+static int
+vpfe_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ vpfe->std_index >= ARRAY_SIZE(vpfe_standards))
+ return -EINVAL;
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ s->r.left = 0;
+ s->r.top = 0;
+ s->r.width = vpfe_standards[vpfe->std_index].width;
+ s->r.height = vpfe_standards[vpfe->std_index].height;
+ break;
+
+ case V4L2_SEL_TGT_CROP:
+ s->r = vpfe->crop;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+vpfe_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct v4l2_rect cr = vpfe->crop;
+ struct v4l2_rect r = s->r;
+ u32 bpp;
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ s->target != V4L2_SEL_TGT_CROP)
+ return -EINVAL;
+
+ v4l_bound_align_image(&r.width, 0, cr.width, 0,
+ &r.height, 0, cr.height, 0, 0);
+
+ r.left = clamp_t(unsigned int, r.left, 0, cr.width - r.width);
+ r.top = clamp_t(unsigned int, r.top, 0, cr.height - r.height);
+
+ if (s->flags & V4L2_SEL_FLAG_LE && !v4l2_rect_enclosed(&r, &s->r))
+ return -ERANGE;
+
+ if (s->flags & V4L2_SEL_FLAG_GE && !v4l2_rect_enclosed(&s->r, &r))
+ return -ERANGE;
+
+ s->r = vpfe->crop = r;
+
+ bpp = __get_bytesperpixel(vpfe, vpfe->current_vpfe_fmt);
+ vpfe_ccdc_set_image_window(&vpfe->ccdc, &r, bpp);
+ vpfe->fmt.fmt.pix.width = r.width;
+ vpfe->fmt.fmt.pix.height = r.height;
+ vpfe->fmt.fmt.pix.bytesperline =
+ vpfe_ccdc_get_line_length(&vpfe->ccdc);
+ vpfe->fmt.fmt.pix.sizeimage = vpfe->fmt.fmt.pix.bytesperline *
+ vpfe->fmt.fmt.pix.height;
+
+ vpfe_dbg(1, vpfe, "cropped (%d,%d)/%dx%d of %dx%d\n",
+ r.left, r.top, r.width, r.height, cr.width, cr.height);
+
+ return 0;
+}
+
+static long vpfe_ioctl_default(struct file *file, void *priv,
+ bool valid_prio, unsigned int cmd, void *param)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ int ret;
+
+ if (!valid_prio) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+
+ switch (cmd) {
+ case VIDIOC_AM437X_CCDC_CFG:
+ ret = vpfe_ccdc_set_params(&vpfe->ccdc, (void __user *)param);
+ if (ret) {
+ vpfe_dbg(2, vpfe,
+ "Error setting parameters in CCDC\n");
+ return ret;
+ }
+ ret = vpfe_get_ccdc_image_format(vpfe,
+ &vpfe->fmt);
+ if (ret < 0) {
+ vpfe_dbg(2, vpfe,
+ "Invalid image format at CCDC\n");
+ return ret;
+ }
+ break;
+
+ default:
+ ret = -ENOTTY;
+ break;
+ }
+
+ return ret;
+}
+
+static const struct vb2_ops vpfe_video_qops = {
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+ .queue_setup = vpfe_queue_setup,
+ .buf_prepare = vpfe_buffer_prepare,
+ .buf_queue = vpfe_buffer_queue,
+ .start_streaming = vpfe_start_streaming,
+ .stop_streaming = vpfe_stop_streaming,
+};
+
+/* vpfe capture driver file operations */
+static const struct v4l2_file_operations vpfe_fops = {
+ .owner = THIS_MODULE,
+ .open = vpfe_open,
+ .release = vpfe_release,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = vb2_fop_mmap,
+};
+
+/* vpfe capture ioctl operations */
+static const struct v4l2_ioctl_ops vpfe_ioctl_ops = {
+ .vidioc_querycap = vpfe_querycap,
+ .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt,
+ .vidioc_g_fmt_vid_cap = vpfe_g_fmt,
+ .vidioc_s_fmt_vid_cap = vpfe_s_fmt,
+ .vidioc_try_fmt_vid_cap = vpfe_try_fmt,
+
+ .vidioc_enum_framesizes = vpfe_enum_size,
+
+ .vidioc_enum_input = vpfe_enum_input,
+ .vidioc_g_input = vpfe_g_input,
+ .vidioc_s_input = vpfe_s_input,
+
+ .vidioc_querystd = vpfe_querystd,
+ .vidioc_s_std = vpfe_s_std,
+ .vidioc_g_std = vpfe_g_std,
+
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+
+ .vidioc_log_status = v4l2_ctrl_log_status,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+
+ .vidioc_g_pixelaspect = vpfe_g_pixelaspect,
+ .vidioc_g_selection = vpfe_g_selection,
+ .vidioc_s_selection = vpfe_s_selection,
+
+ .vidioc_default = vpfe_ioctl_default,
+};
+
+static int
+vpfe_async_bound(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *subdev,
+ struct v4l2_async_subdev *asd)
+{
+ struct vpfe_device *vpfe = container_of(notifier->v4l2_dev,
+ struct vpfe_device, v4l2_dev);
+ struct v4l2_subdev_mbus_code_enum mbus_code;
+ struct vpfe_subdev_info *sdinfo;
+ struct vpfe_fmt *fmt;
+ int ret = 0;
+ bool found = false;
+ int i, j, k;
+
+ for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
+ if (vpfe->cfg->asd[i]->match.fwnode ==
+ asd[i].match.fwnode) {
+ sdinfo = &vpfe->cfg->sub_devs[i];
+ vpfe->sd[i] = subdev;
+ vpfe->sd[i]->grp_id = sdinfo->grp_id;
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ vpfe_info(vpfe, "sub device (%s) not matched\n", subdev->name);
+ return -EINVAL;
+ }
+
+ vpfe->video_dev.tvnorms |= sdinfo->inputs[0].std;
+
+ vpfe->num_active_fmt = 0;
+ for (j = 0, i = 0; (ret != -EINVAL); ++j) {
+ memset(&mbus_code, 0, sizeof(mbus_code));
+ mbus_code.index = j;
+ mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ ret = v4l2_subdev_call(subdev, pad, enum_mbus_code,
+ NULL, &mbus_code);
+ if (ret)
+ continue;
+
+ vpfe_dbg(3, vpfe,
+ "subdev %s: code: %04x idx: %d\n",
+ subdev->name, mbus_code.code, j);
+
+ for (k = 0; k < ARRAY_SIZE(formats); k++) {
+ fmt = &formats[k];
+ if (mbus_code.code != fmt->code)
+ continue;
+ vpfe->active_fmt[i] = fmt;
+ vpfe_dbg(3, vpfe,
+ "matched fourcc: %s code: %04x idx: %d\n",
+ print_fourcc(fmt->fourcc), mbus_code.code, i);
+ vpfe->num_active_fmt = ++i;
+ }
+ }
+
+ if (!i) {
+ vpfe_err(vpfe, "No suitable format reported by subdev %s\n",
+ subdev->name);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int vpfe_probe_complete(struct vpfe_device *vpfe)
+{
+ struct video_device *vdev;
+ struct vb2_queue *q;
+ int err;
+
+ spin_lock_init(&vpfe->dma_queue_lock);
+ mutex_init(&vpfe->lock);
+
+ vpfe->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+ /* set first sub device as current one */
+ vpfe->current_subdev = &vpfe->cfg->sub_devs[0];
+ vpfe->v4l2_dev.ctrl_handler = vpfe->sd[0]->ctrl_handler;
+
+ err = vpfe_set_input(vpfe, 0);
+ if (err)
+ goto probe_out;
+
+ /* Initialize videobuf2 queue as per the buffer type */
+ q = &vpfe->buffer_queue;
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
+ q->drv_priv = vpfe;
+ q->ops = &vpfe_video_qops;
+ q->mem_ops = &vb2_dma_contig_memops;
+ q->buf_struct_size = sizeof(struct vpfe_cap_buffer);
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->lock = &vpfe->lock;
+ q->min_buffers_needed = 1;
+ q->dev = vpfe->pdev;
+
+ err = vb2_queue_init(q);
+ if (err) {
+ vpfe_err(vpfe, "vb2_queue_init() failed\n");
+ goto probe_out;
+ }
+
+ INIT_LIST_HEAD(&vpfe->dma_queue);
+
+ vdev = &vpfe->video_dev;
+ strscpy(vdev->name, VPFE_MODULE_NAME, sizeof(vdev->name));
+ vdev->release = video_device_release_empty;
+ vdev->fops = &vpfe_fops;
+ vdev->ioctl_ops = &vpfe_ioctl_ops;
+ vdev->v4l2_dev = &vpfe->v4l2_dev;
+ vdev->vfl_dir = VFL_DIR_RX;
+ vdev->queue = q;
+ vdev->lock = &vpfe->lock;
+ vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
+ V4L2_CAP_READWRITE;
+ video_set_drvdata(vdev, vpfe);
+ err = video_register_device(&vpfe->video_dev, VFL_TYPE_VIDEO, -1);
+ if (err) {
+ vpfe_err(vpfe,
+ "Unable to register video device.\n");
+ goto probe_out;
+ }
+
+ return 0;
+
+probe_out:
+ v4l2_device_unregister(&vpfe->v4l2_dev);
+ return err;
+}
+
+static int vpfe_async_complete(struct v4l2_async_notifier *notifier)
+{
+ struct vpfe_device *vpfe = container_of(notifier->v4l2_dev,
+ struct vpfe_device, v4l2_dev);
+
+ return vpfe_probe_complete(vpfe);
+}
+
+static const struct v4l2_async_notifier_operations vpfe_async_ops = {
+ .bound = vpfe_async_bound,
+ .complete = vpfe_async_complete,
+};
+
+static struct vpfe_config *
+vpfe_get_pdata(struct vpfe_device *vpfe)
+{
+ struct device_node *endpoint = NULL;
+ struct device *dev = vpfe->pdev;
+ struct vpfe_subdev_info *sdinfo;
+ struct vpfe_config *pdata;
+ unsigned int flags;
+ unsigned int i;
+ int err;
+
+ dev_dbg(dev, "vpfe_get_pdata\n");
+
+ v4l2_async_nf_init(&vpfe->notifier);
+
+ if (!IS_ENABLED(CONFIG_OF) || !dev->of_node)
+ return dev->platform_data;
+
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return NULL;
+
+ for (i = 0; ; i++) {
+ struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
+ struct device_node *rem;
+
+ endpoint = of_graph_get_next_endpoint(dev->of_node, endpoint);
+ if (!endpoint)
+ break;
+
+ sdinfo = &pdata->sub_devs[i];
+ sdinfo->grp_id = 0;
+
+ /* we only support camera */
+ sdinfo->inputs[0].index = i;
+ strscpy(sdinfo->inputs[0].name, "Camera",
+ sizeof(sdinfo->inputs[0].name));
+ sdinfo->inputs[0].type = V4L2_INPUT_TYPE_CAMERA;
+ sdinfo->inputs[0].std = V4L2_STD_ALL;
+ sdinfo->inputs[0].capabilities = V4L2_IN_CAP_STD;
+
+ sdinfo->can_route = 0;
+ sdinfo->routes = NULL;
+
+ of_property_read_u32(endpoint, "ti,am437x-vpfe-interface",
+ &sdinfo->vpfe_param.if_type);
+ if (sdinfo->vpfe_param.if_type < 0 ||
+ sdinfo->vpfe_param.if_type > 4) {
+ sdinfo->vpfe_param.if_type = VPFE_RAW_BAYER;
+ }
+
+ err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
+ &bus_cfg);
+ if (err) {
+ dev_err(dev, "Could not parse the endpoint\n");
+ goto cleanup;
+ }
+
+ sdinfo->vpfe_param.bus_width = bus_cfg.bus.parallel.bus_width;
+
+ if (sdinfo->vpfe_param.bus_width < 8 ||
+ sdinfo->vpfe_param.bus_width > 16) {
+ dev_err(dev, "Invalid bus width.\n");
+ goto cleanup;
+ }
+
+ flags = bus_cfg.bus.parallel.flags;
+
+ if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
+ sdinfo->vpfe_param.hdpol = 1;
+
+ if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
+ sdinfo->vpfe_param.vdpol = 1;
+
+ rem = of_graph_get_remote_port_parent(endpoint);
+ if (!rem) {
+ dev_err(dev, "Remote device at %pOF not found\n",
+ endpoint);
+ goto cleanup;
+ }
+
+ pdata->asd[i] = v4l2_async_nf_add_fwnode(&vpfe->notifier,
+ of_fwnode_handle(rem),
+ struct
+ v4l2_async_subdev);
+ of_node_put(rem);
+ if (IS_ERR(pdata->asd[i]))
+ goto cleanup;
+ }
+
+ of_node_put(endpoint);
+ return pdata;
+
+cleanup:
+ v4l2_async_nf_cleanup(&vpfe->notifier);
+ of_node_put(endpoint);
+ return NULL;
+}
+
+/*
+ * vpfe_probe : This function creates device entries by register
+ * itself to the V4L2 driver and initializes fields of each
+ * device objects
+ */
+static int vpfe_probe(struct platform_device *pdev)
+{
+ struct vpfe_config *vpfe_cfg;
+ struct vpfe_device *vpfe;
+ struct vpfe_ccdc *ccdc;
+ int ret;
+
+ vpfe = devm_kzalloc(&pdev->dev, sizeof(*vpfe), GFP_KERNEL);
+ if (!vpfe)
+ return -ENOMEM;
+
+ vpfe->pdev = &pdev->dev;
+
+ vpfe_cfg = vpfe_get_pdata(vpfe);
+ if (!vpfe_cfg) {
+ dev_err(&pdev->dev, "No platform data\n");
+ return -EINVAL;
+ }
+
+ vpfe->cfg = vpfe_cfg;
+ ccdc = &vpfe->ccdc;
+
+ ccdc->ccdc_cfg.base_addr = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(ccdc->ccdc_cfg.base_addr)) {
+ ret = PTR_ERR(ccdc->ccdc_cfg.base_addr);
+ goto probe_out_cleanup;
+ }
+
+ ret = platform_get_irq(pdev, 0);
+ if (ret <= 0) {
+ ret = -ENODEV;
+ goto probe_out_cleanup;
+ }
+ vpfe->irq = ret;
+
+ ret = devm_request_irq(vpfe->pdev, vpfe->irq, vpfe_isr, 0,
+ "vpfe_capture0", vpfe);
+ if (ret) {
+ dev_err(&pdev->dev, "Unable to request interrupt\n");
+ ret = -EINVAL;
+ goto probe_out_cleanup;
+ }
+
+ ret = v4l2_device_register(&pdev->dev, &vpfe->v4l2_dev);
+ if (ret) {
+ vpfe_err(vpfe,
+ "Unable to register v4l2 device.\n");
+ goto probe_out_cleanup;
+ }
+
+ /* set the driver data in platform device */
+ platform_set_drvdata(pdev, vpfe);
+ /* Enabling module functional clock */
+ pm_runtime_enable(&pdev->dev);
+
+ /* for now just enable it here instead of waiting for the open */
+ ret = pm_runtime_resume_and_get(&pdev->dev);
+ if (ret < 0) {
+ vpfe_err(vpfe, "Unable to resume device.\n");
+ goto probe_out_v4l2_unregister;
+ }
+
+ vpfe_ccdc_config_defaults(ccdc);
+
+ pm_runtime_put_sync(&pdev->dev);
+
+ vpfe->sd = devm_kcalloc(&pdev->dev,
+ ARRAY_SIZE(vpfe->cfg->asd),
+ sizeof(struct v4l2_subdev *),
+ GFP_KERNEL);
+ if (!vpfe->sd) {
+ ret = -ENOMEM;
+ goto probe_out_v4l2_unregister;
+ }
+
+ vpfe->notifier.ops = &vpfe_async_ops;
+ ret = v4l2_async_nf_register(&vpfe->v4l2_dev, &vpfe->notifier);
+ if (ret) {
+ vpfe_err(vpfe, "Error registering async notifier\n");
+ ret = -EINVAL;
+ goto probe_out_v4l2_unregister;
+ }
+
+ return 0;
+
+probe_out_v4l2_unregister:
+ v4l2_device_unregister(&vpfe->v4l2_dev);
+probe_out_cleanup:
+ v4l2_async_nf_cleanup(&vpfe->notifier);
+ return ret;
+}
+
+/*
+ * vpfe_remove : It un-register device from V4L2 driver
+ */
+static int vpfe_remove(struct platform_device *pdev)
+{
+ struct vpfe_device *vpfe = platform_get_drvdata(pdev);
+
+ pm_runtime_disable(&pdev->dev);
+
+ v4l2_async_nf_unregister(&vpfe->notifier);
+ v4l2_async_nf_cleanup(&vpfe->notifier);
+ v4l2_device_unregister(&vpfe->v4l2_dev);
+ video_unregister_device(&vpfe->video_dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+
+static void vpfe_save_context(struct vpfe_ccdc *ccdc)
+{
+ ccdc->ccdc_ctx[VPFE_PCR >> 2] = vpfe_reg_read(ccdc, VPFE_PCR);
+ ccdc->ccdc_ctx[VPFE_SYNMODE >> 2] = vpfe_reg_read(ccdc, VPFE_SYNMODE);
+ ccdc->ccdc_ctx[VPFE_SDOFST >> 2] = vpfe_reg_read(ccdc, VPFE_SDOFST);
+ ccdc->ccdc_ctx[VPFE_SDR_ADDR >> 2] = vpfe_reg_read(ccdc, VPFE_SDR_ADDR);
+ ccdc->ccdc_ctx[VPFE_CLAMP >> 2] = vpfe_reg_read(ccdc, VPFE_CLAMP);
+ ccdc->ccdc_ctx[VPFE_DCSUB >> 2] = vpfe_reg_read(ccdc, VPFE_DCSUB);
+ ccdc->ccdc_ctx[VPFE_COLPTN >> 2] = vpfe_reg_read(ccdc, VPFE_COLPTN);
+ ccdc->ccdc_ctx[VPFE_BLKCMP >> 2] = vpfe_reg_read(ccdc, VPFE_BLKCMP);
+ ccdc->ccdc_ctx[VPFE_VDINT >> 2] = vpfe_reg_read(ccdc, VPFE_VDINT);
+ ccdc->ccdc_ctx[VPFE_ALAW >> 2] = vpfe_reg_read(ccdc, VPFE_ALAW);
+ ccdc->ccdc_ctx[VPFE_REC656IF >> 2] = vpfe_reg_read(ccdc, VPFE_REC656IF);
+ ccdc->ccdc_ctx[VPFE_CCDCFG >> 2] = vpfe_reg_read(ccdc, VPFE_CCDCFG);
+ ccdc->ccdc_ctx[VPFE_CULLING >> 2] = vpfe_reg_read(ccdc, VPFE_CULLING);
+ ccdc->ccdc_ctx[VPFE_HD_VD_WID >> 2] = vpfe_reg_read(ccdc,
+ VPFE_HD_VD_WID);
+ ccdc->ccdc_ctx[VPFE_PIX_LINES >> 2] = vpfe_reg_read(ccdc,
+ VPFE_PIX_LINES);
+ ccdc->ccdc_ctx[VPFE_HORZ_INFO >> 2] = vpfe_reg_read(ccdc,
+ VPFE_HORZ_INFO);
+ ccdc->ccdc_ctx[VPFE_VERT_START >> 2] = vpfe_reg_read(ccdc,
+ VPFE_VERT_START);
+ ccdc->ccdc_ctx[VPFE_VERT_LINES >> 2] = vpfe_reg_read(ccdc,
+ VPFE_VERT_LINES);
+ ccdc->ccdc_ctx[VPFE_HSIZE_OFF >> 2] = vpfe_reg_read(ccdc,
+ VPFE_HSIZE_OFF);
+}
+
+static int vpfe_suspend(struct device *dev)
+{
+ struct vpfe_device *vpfe = dev_get_drvdata(dev);
+ struct vpfe_ccdc *ccdc = &vpfe->ccdc;
+
+ /* only do full suspend if streaming has started */
+ if (vb2_start_streaming_called(&vpfe->buffer_queue)) {
+ /*
+ * ignore RPM resume errors here, as it is already too late.
+ * A check like that should happen earlier, either at
+ * open() or just before start streaming.
+ */
+ pm_runtime_get_sync(dev);
+ vpfe_config_enable(ccdc, 1);
+
+ /* Save VPFE context */
+ vpfe_save_context(ccdc);
+
+ /* Disable CCDC */
+ vpfe_pcr_enable(ccdc, 0);
+ vpfe_config_enable(ccdc, 0);
+
+ /* Disable both master and slave clock */
+ pm_runtime_put_sync(dev);
+ }
+
+ /* Select sleep pin state */
+ pinctrl_pm_select_sleep_state(dev);
+
+ return 0;
+}
+
+static void vpfe_restore_context(struct vpfe_ccdc *ccdc)
+{
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SYNMODE >> 2], VPFE_SYNMODE);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CULLING >> 2], VPFE_CULLING);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SDOFST >> 2], VPFE_SDOFST);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SDR_ADDR >> 2], VPFE_SDR_ADDR);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CLAMP >> 2], VPFE_CLAMP);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_DCSUB >> 2], VPFE_DCSUB);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_COLPTN >> 2], VPFE_COLPTN);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_BLKCMP >> 2], VPFE_BLKCMP);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VDINT >> 2], VPFE_VDINT);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_ALAW >> 2], VPFE_ALAW);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_REC656IF >> 2], VPFE_REC656IF);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CCDCFG >> 2], VPFE_CCDCFG);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_PCR >> 2], VPFE_PCR);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HD_VD_WID >> 2],
+ VPFE_HD_VD_WID);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_PIX_LINES >> 2],
+ VPFE_PIX_LINES);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HORZ_INFO >> 2],
+ VPFE_HORZ_INFO);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VERT_START >> 2],
+ VPFE_VERT_START);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VERT_LINES >> 2],
+ VPFE_VERT_LINES);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HSIZE_OFF >> 2],
+ VPFE_HSIZE_OFF);
+}
+
+static int vpfe_resume(struct device *dev)
+{
+ struct vpfe_device *vpfe = dev_get_drvdata(dev);
+ struct vpfe_ccdc *ccdc = &vpfe->ccdc;
+
+ /* only do full resume if streaming has started */
+ if (vb2_start_streaming_called(&vpfe->buffer_queue)) {
+ /* Enable both master and slave clock */
+ pm_runtime_get_sync(dev);
+ vpfe_config_enable(ccdc, 1);
+
+ /* Restore VPFE context */
+ vpfe_restore_context(ccdc);
+
+ vpfe_config_enable(ccdc, 0);
+ pm_runtime_put_sync(dev);
+ }
+
+ /* Select default pin state */
+ pinctrl_pm_select_default_state(dev);
+
+ return 0;
+}
+
+#endif
+
+static SIMPLE_DEV_PM_OPS(vpfe_pm_ops, vpfe_suspend, vpfe_resume);
+
+static const struct of_device_id vpfe_of_match[] = {
+ { .compatible = "ti,am437x-vpfe", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, vpfe_of_match);
+
+static struct platform_driver vpfe_driver = {
+ .probe = vpfe_probe,
+ .remove = vpfe_remove,
+ .driver = {
+ .name = VPFE_MODULE_NAME,
+ .pm = &vpfe_pm_ops,
+ .of_match_table = of_match_ptr(vpfe_of_match),
+ },
+};
+
+module_platform_driver(vpfe_driver);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("TI AM437x VPFE driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(VPFE_VERSION);
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
+ *
+ * Benoit Parrot <bparrot@ti.com>
+ * Lad, Prabhakar <prabhakar.csengg@gmail.com>
+ */
+
+#ifndef AM437X_VPFE_H
+#define AM437X_VPFE_H
+
+#include <linux/am437x-vpfe.h>
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-dev.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "am437x-vpfe_regs.h"
+
+enum vpfe_pin_pol {
+ VPFE_PINPOL_POSITIVE = 0,
+ VPFE_PINPOL_NEGATIVE,
+};
+
+enum vpfe_hw_if_type {
+ /* Raw Bayer */
+ VPFE_RAW_BAYER = 0,
+ /* BT656 - 8 bit */
+ VPFE_BT656,
+ /* BT656 - 10 bit */
+ VPFE_BT656_10BIT,
+ /* YCbCr - 8 bit with external sync */
+ VPFE_YCBCR_SYNC_8,
+ /* YCbCr - 16 bit with external sync */
+ VPFE_YCBCR_SYNC_16,
+};
+
+/* interface description */
+struct vpfe_hw_if_param {
+ enum vpfe_hw_if_type if_type;
+ enum vpfe_pin_pol hdpol;
+ enum vpfe_pin_pol vdpol;
+ unsigned int bus_width;
+};
+
+#define VPFE_MAX_SUBDEV 1
+#define VPFE_MAX_INPUTS 1
+
+struct vpfe_std_info {
+ int active_pixels;
+ int active_lines;
+ /* current frame format */
+ int frame_format;
+};
+
+struct vpfe_route {
+ u32 input;
+ u32 output;
+};
+
+struct vpfe_subdev_info {
+ /* Sub device group id */
+ int grp_id;
+ /* inputs available at the sub device */
+ struct v4l2_input inputs[VPFE_MAX_INPUTS];
+ /* Sub dev routing information for each input */
+ struct vpfe_route *routes;
+ /* check if sub dev supports routing */
+ int can_route;
+ /* ccdc bus/interface configuration */
+ struct vpfe_hw_if_param vpfe_param;
+ struct v4l2_subdev *sd;
+};
+
+struct vpfe_config {
+ /* information about each subdev */
+ struct vpfe_subdev_info sub_devs[VPFE_MAX_SUBDEV];
+ /* Flat array, arranged in groups */
+ struct v4l2_async_subdev *asd[VPFE_MAX_SUBDEV];
+};
+
+struct vpfe_cap_buffer {
+ struct vb2_v4l2_buffer vb;
+ struct list_head list;
+};
+
+enum ccdc_pixfmt {
+ CCDC_PIXFMT_RAW = 0,
+ CCDC_PIXFMT_YCBCR_16BIT,
+ CCDC_PIXFMT_YCBCR_8BIT,
+};
+
+enum ccdc_frmfmt {
+ CCDC_FRMFMT_PROGRESSIVE = 0,
+ CCDC_FRMFMT_INTERLACED,
+};
+
+/* PIXEL ORDER IN MEMORY from LSB to MSB */
+/* only applicable for 8-bit input mode */
+enum ccdc_pixorder {
+ CCDC_PIXORDER_YCBYCR,
+ CCDC_PIXORDER_CBYCRY,
+};
+
+enum ccdc_buftype {
+ CCDC_BUFTYPE_FLD_INTERLEAVED,
+ CCDC_BUFTYPE_FLD_SEPARATED
+};
+
+
+/* returns the highest bit used for the gamma */
+static inline u8 ccdc_gamma_width_max_bit(enum vpfe_ccdc_gamma_width width)
+{
+ return 15 - width;
+}
+
+/* returns the highest bit used for this data size */
+static inline u8 ccdc_data_size_max_bit(enum vpfe_ccdc_data_size sz)
+{
+ return sz == VPFE_CCDC_DATA_8BITS ? 7 : 15 - sz;
+}
+
+/* Structure for CCDC configuration parameters for raw capture mode */
+struct ccdc_params_raw {
+ /* pixel format */
+ enum ccdc_pixfmt pix_fmt;
+ /* progressive or interlaced frame */
+ enum ccdc_frmfmt frm_fmt;
+ struct v4l2_rect win;
+ /* Current Format Bytes Per Pixels */
+ unsigned int bytesperpixel;
+ /* Current Format Bytes per Lines
+ * (Aligned to 32 bytes) used for HORZ_INFO
+ */
+ unsigned int bytesperline;
+ /* field id polarity */
+ enum vpfe_pin_pol fid_pol;
+ /* vertical sync polarity */
+ enum vpfe_pin_pol vd_pol;
+ /* horizontal sync polarity */
+ enum vpfe_pin_pol hd_pol;
+ /* interleaved or separated fields */
+ enum ccdc_buftype buf_type;
+ /*
+ * enable to store the image in inverse
+ * order in memory(bottom to top)
+ */
+ unsigned char image_invert_enable;
+ /* configurable parameters */
+ struct vpfe_ccdc_config_params_raw config_params;
+};
+
+struct ccdc_params_ycbcr {
+ /* pixel format */
+ enum ccdc_pixfmt pix_fmt;
+ /* progressive or interlaced frame */
+ enum ccdc_frmfmt frm_fmt;
+ struct v4l2_rect win;
+ /* Current Format Bytes Per Pixels */
+ unsigned int bytesperpixel;
+ /* Current Format Bytes per Lines
+ * (Aligned to 32 bytes) used for HORZ_INFO
+ */
+ unsigned int bytesperline;
+ /* field id polarity */
+ enum vpfe_pin_pol fid_pol;
+ /* vertical sync polarity */
+ enum vpfe_pin_pol vd_pol;
+ /* horizontal sync polarity */
+ enum vpfe_pin_pol hd_pol;
+ /* enable BT.656 embedded sync mode */
+ int bt656_enable;
+ /* cb:y:cr:y or y:cb:y:cr in memory */
+ enum ccdc_pixorder pix_order;
+ /* interleaved or separated fields */
+ enum ccdc_buftype buf_type;
+};
+
+/*
+ * CCDC operational configuration
+ */
+struct ccdc_config {
+ /* CCDC interface type */
+ enum vpfe_hw_if_type if_type;
+ /* Raw Bayer configuration */
+ struct ccdc_params_raw bayer;
+ /* YCbCr configuration */
+ struct ccdc_params_ycbcr ycbcr;
+ /* ccdc base address */
+ void __iomem *base_addr;
+};
+
+struct vpfe_ccdc {
+ struct ccdc_config ccdc_cfg;
+ u32 ccdc_ctx[VPFE_REG_END / sizeof(u32)];
+};
+
+/*
+ * struct vpfe_fmt - VPFE media bus format information
+ * fourcc: V4L2 pixel format code
+ * code: V4L2 media bus format code
+ * bitsperpixel: Bits per pixel over the bus
+ */
+struct vpfe_fmt {
+ u32 fourcc;
+ u32 code;
+ u32 bitsperpixel;
+};
+
+/*
+ * When formats[] is modified make sure to adjust this value also.
+ * Expect compile time warnings if VPFE_NUM_FORMATS is smaller then
+ * the number of elements in formats[].
+ */
+#define VPFE_NUM_FORMATS 10
+
+struct vpfe_device {
+ /* V4l2 specific parameters */
+ /* Identifies video device for this channel */
+ struct video_device video_dev;
+ /* sub devices */
+ struct v4l2_subdev **sd;
+ /* vpfe cfg */
+ struct vpfe_config *cfg;
+ /* V4l2 device */
+ struct v4l2_device v4l2_dev;
+ /* parent device */
+ struct device *pdev;
+ /* subdevice async Notifier */
+ struct v4l2_async_notifier notifier;
+ /* Indicates id of the field which is being displayed */
+ unsigned field;
+ unsigned sequence;
+ /* current interface type */
+ struct vpfe_hw_if_param vpfe_if_params;
+ /* ptr to currently selected sub device */
+ struct vpfe_subdev_info *current_subdev;
+ /* current input at the sub device */
+ int current_input;
+ /* Keeps track of the information about the standard */
+ struct vpfe_std_info std_info;
+ /* std index into std table */
+ int std_index;
+ /* IRQs used when CCDC output to SDRAM */
+ unsigned int irq;
+ /* Pointer pointing to current v4l2_buffer */
+ struct vpfe_cap_buffer *cur_frm;
+ /* Pointer pointing to next v4l2_buffer */
+ struct vpfe_cap_buffer *next_frm;
+ /* Used to store pixel format */
+ struct v4l2_format fmt;
+ /* Used to keep a reference to the current vpfe_fmt */
+ struct vpfe_fmt *current_vpfe_fmt;
+ struct vpfe_fmt *active_fmt[VPFE_NUM_FORMATS];
+ unsigned int num_active_fmt;
+
+ /*
+ * used when IMP is chained to store the crop window which
+ * is different from the image window
+ */
+ struct v4l2_rect crop;
+ /* Buffer queue used in video-buf */
+ struct vb2_queue buffer_queue;
+ /* Queue of filled frames */
+ struct list_head dma_queue;
+ /* IRQ lock for DMA queue */
+ spinlock_t dma_queue_lock;
+ /* lock used to access this structure */
+ struct mutex lock;
+ /*
+ * offset where second field starts from the starting of the
+ * buffer for field separated YCbCr formats
+ */
+ u32 field_off;
+ struct vpfe_ccdc ccdc;
+ int stopping;
+ struct completion capture_stop;
+};
+
+#endif /* AM437X_VPFE_H */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * TI AM437x Image Sensor Interface Registers
+ *
+ * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
+ *
+ * Benoit Parrot <bparrot@ti.com>
+ * Lad, Prabhakar <prabhakar.csengg@gmail.com>
+ */
+
+#ifndef AM437X_VPFE_REGS_H
+#define AM437X_VPFE_REGS_H
+
+/* VPFE module register offset */
+#define VPFE_REVISION 0x0
+#define VPFE_PCR 0x4
+#define VPFE_SYNMODE 0x8
+#define VPFE_HD_VD_WID 0xc
+#define VPFE_PIX_LINES 0x10
+#define VPFE_HORZ_INFO 0x14
+#define VPFE_VERT_START 0x18
+#define VPFE_VERT_LINES 0x1c
+#define VPFE_CULLING 0x20
+#define VPFE_HSIZE_OFF 0x24
+#define VPFE_SDOFST 0x28
+#define VPFE_SDR_ADDR 0x2c
+#define VPFE_CLAMP 0x30
+#define VPFE_DCSUB 0x34
+#define VPFE_COLPTN 0x38
+#define VPFE_BLKCMP 0x3c
+#define VPFE_VDINT 0x48
+#define VPFE_ALAW 0x4c
+#define VPFE_REC656IF 0x50
+#define VPFE_CCDCFG 0x54
+#define VPFE_DMA_CNTL 0x98
+#define VPFE_SYSCONFIG 0x104
+#define VPFE_CONFIG 0x108
+#define VPFE_IRQ_EOI 0x110
+#define VPFE_IRQ_STS_RAW 0x114
+#define VPFE_IRQ_STS 0x118
+#define VPFE_IRQ_EN_SET 0x11c
+#define VPFE_IRQ_EN_CLR 0x120
+#define VPFE_REG_END 0x124
+
+/* Define bit fields within selected registers */
+#define VPFE_FID_POL_MASK 1
+#define VPFE_FID_POL_SHIFT 4
+#define VPFE_HD_POL_MASK 1
+#define VPFE_HD_POL_SHIFT 3
+#define VPFE_VD_POL_MASK 1
+#define VPFE_VD_POL_SHIFT 2
+#define VPFE_HSIZE_OFF_MASK 0xffffffe0
+#define VPFE_32BYTE_ALIGN_VAL 31
+#define VPFE_FRM_FMT_MASK 0x1
+#define VPFE_FRM_FMT_SHIFT 7
+#define VPFE_DATA_SZ_MASK 7
+#define VPFE_DATA_SZ_SHIFT 8
+#define VPFE_PIX_FMT_MASK 3
+#define VPFE_PIX_FMT_SHIFT 12
+#define VPFE_VP2SDR_DISABLE 0xfffbffff
+#define VPFE_WEN_ENABLE BIT(17)
+#define VPFE_SDR2RSZ_DISABLE 0xfff7ffff
+#define VPFE_VDHDEN_ENABLE BIT(16)
+#define VPFE_LPF_ENABLE BIT(14)
+#define VPFE_ALAW_ENABLE BIT(3)
+#define VPFE_ALAW_GAMMA_WD_MASK 7
+#define VPFE_BLK_CLAMP_ENABLE BIT(31)
+#define VPFE_BLK_SGAIN_MASK 0x1f
+#define VPFE_BLK_ST_PXL_MASK 0x7fff
+#define VPFE_BLK_ST_PXL_SHIFT 10
+#define VPFE_BLK_SAMPLE_LN_MASK 7
+#define VPFE_BLK_SAMPLE_LN_SHIFT 28
+#define VPFE_BLK_SAMPLE_LINE_MASK 7
+#define VPFE_BLK_SAMPLE_LINE_SHIFT 25
+#define VPFE_BLK_DC_SUB_MASK 0x03fff
+#define VPFE_BLK_COMP_MASK 0xff
+#define VPFE_BLK_COMP_GB_COMP_SHIFT 8
+#define VPFE_BLK_COMP_GR_COMP_SHIFT 16
+#define VPFE_BLK_COMP_R_COMP_SHIFT 24
+#define VPFE_LATCH_ON_VSYNC_DISABLE BIT(15)
+#define VPFE_DATA_PACK_ENABLE BIT(11)
+#define VPFE_HORZ_INFO_SPH_SHIFT 16
+#define VPFE_VERT_START_SLV0_SHIFT 16
+#define VPFE_VDINT_VDINT0_SHIFT 16
+#define VPFE_VDINT_VDINT1_MASK 0xffff
+#define VPFE_PPC_RAW 1
+#define VPFE_DCSUB_DEFAULT_VAL 0
+#define VPFE_CLAMP_DEFAULT_VAL 0
+#define VPFE_COLPTN_VAL 0xbb11bb11
+#define VPFE_TWO_BYTES_PER_PIXEL 2
+#define VPFE_INTERLACED_IMAGE_INVERT 0x4b6d
+#define VPFE_INTERLACED_NO_IMAGE_INVERT 0x0249
+#define VPFE_PROGRESSIVE_IMAGE_INVERT 0x4000
+#define VPFE_PROGRESSIVE_NO_IMAGE_INVERT 0
+#define VPFE_INTERLACED_HEIGHT_SHIFT 1
+#define VPFE_SYN_MODE_INPMOD_SHIFT 12
+#define VPFE_SYN_MODE_INPMOD_MASK 3
+#define VPFE_SYN_MODE_8BITS (7 << 8)
+#define VPFE_SYN_MODE_10BITS (6 << 8)
+#define VPFE_SYN_MODE_11BITS (5 << 8)
+#define VPFE_SYN_MODE_12BITS (4 << 8)
+#define VPFE_SYN_MODE_13BITS (3 << 8)
+#define VPFE_SYN_MODE_14BITS (2 << 8)
+#define VPFE_SYN_MODE_15BITS (1 << 8)
+#define VPFE_SYN_MODE_16BITS (0 << 8)
+#define VPFE_SYN_FLDMODE_MASK 1
+#define VPFE_SYN_FLDMODE_SHIFT 7
+#define VPFE_REC656IF_BT656_EN 3
+#define VPFE_SYN_MODE_VD_POL_NEGATIVE BIT(2)
+#define VPFE_CCDCFG_Y8POS_SHIFT 11
+#define VPFE_CCDCFG_BW656_10BIT BIT(5)
+#define VPFE_SDOFST_FIELD_INTERLEAVED 0x249
+#define VPFE_NO_CULLING 0xffff00ff
+#define VPFE_VDINT0 BIT(0)
+#define VPFE_VDINT1 BIT(1)
+#define VPFE_VDINT2 BIT(2)
+#define VPFE_DMA_CNTL_OVERFLOW BIT(31)
+
+#define VPFE_CONFIG_PCLK_INV_SHIFT 0
+#define VPFE_CONFIG_PCLK_INV_MASK 1
+#define VPFE_CONFIG_PCLK_INV_NOT_INV 0
+#define VPFE_CONFIG_PCLK_INV_INV 1
+#define VPFE_CONFIG_EN_SHIFT 1
+#define VPFE_CONFIG_EN_MASK 2
+#define VPFE_CONFIG_EN_DISABLE 0
+#define VPFE_CONFIG_EN_ENABLE 1
+#define VPFE_CONFIG_ST_SHIFT 2
+#define VPFE_CONFIG_ST_MASK 4
+#define VPFE_CONFIG_ST_OCP_ACTIVE 0
+#define VPFE_CONFIG_ST_OCP_STANDBY 1
+
+#endif /* AM437X_VPFE_REGS_H */
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