// SPDX-License-Identifier: GPL-2.0
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/*
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* Xilinx Test Pattern Generator
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*
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* Copyright (C) 2013-2015 Ideas on Board
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* Copyright (C) 2013-2015 Xilinx, Inc.
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*
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* Contacts: Hyun Kwon <hyun.kwon@xilinx.com>
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* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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*/
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#include <linux/device.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/xilinx-v4l2-controls.h>
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#include <media/v4l2-async.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-subdev.h>
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#include "xilinx-vip.h"
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#include "xilinx-vtc.h"
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#define XTPG_CTRL_STATUS_SLAVE_ERROR (1 << 16)
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#define XTPG_CTRL_IRQ_SLAVE_ERROR (1 << 16)
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#define XTPG_PATTERN_CONTROL 0x0100
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#define XTPG_PATTERN_MASK (0xf << 0)
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#define XTPG_PATTERN_CONTROL_CROSS_HAIRS (1 << 4)
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#define XTPG_PATTERN_CONTROL_MOVING_BOX (1 << 5)
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#define XTPG_PATTERN_CONTROL_COLOR_MASK_SHIFT 6
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#define XTPG_PATTERN_CONTROL_COLOR_MASK_MASK (0xf << 6)
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#define XTPG_PATTERN_CONTROL_STUCK_PIXEL (1 << 9)
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#define XTPG_PATTERN_CONTROL_NOISE (1 << 10)
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#define XTPG_PATTERN_CONTROL_MOTION (1 << 12)
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#define XTPG_MOTION_SPEED 0x0104
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#define XTPG_CROSS_HAIRS 0x0108
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#define XTPG_CROSS_HAIRS_ROW_SHIFT 0
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#define XTPG_CROSS_HAIRS_ROW_MASK (0xfff << 0)
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#define XTPG_CROSS_HAIRS_COLUMN_SHIFT 16
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#define XTPG_CROSS_HAIRS_COLUMN_MASK (0xfff << 16)
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#define XTPG_ZPLATE_HOR_CONTROL 0x010c
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#define XTPG_ZPLATE_VER_CONTROL 0x0110
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#define XTPG_ZPLATE_START_SHIFT 0
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#define XTPG_ZPLATE_START_MASK (0xffff << 0)
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#define XTPG_ZPLATE_SPEED_SHIFT 16
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#define XTPG_ZPLATE_SPEED_MASK (0xffff << 16)
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#define XTPG_BOX_SIZE 0x0114
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#define XTPG_BOX_COLOR 0x0118
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#define XTPG_STUCK_PIXEL_THRESH 0x011c
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#define XTPG_NOISE_GAIN 0x0120
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#define XTPG_BAYER_PHASE 0x0124
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#define XTPG_BAYER_PHASE_RGGB 0
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#define XTPG_BAYER_PHASE_GRBG 1
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#define XTPG_BAYER_PHASE_GBRG 2
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#define XTPG_BAYER_PHASE_BGGR 3
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#define XTPG_BAYER_PHASE_OFF 4
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/*
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* The minimum blanking value is one clock cycle for the front porch, one clock
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* cycle for the sync pulse and one clock cycle for the back porch.
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*/
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#define XTPG_MIN_HBLANK 3
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#define XTPG_MAX_HBLANK (XVTC_MAX_HSIZE - XVIP_MIN_WIDTH)
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#define XTPG_MIN_VBLANK 3
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#define XTPG_MAX_VBLANK (XVTC_MAX_VSIZE - XVIP_MIN_HEIGHT)
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/**
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* struct xtpg_device - Xilinx Test Pattern Generator device structure
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* @xvip: Xilinx Video IP device
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* @pads: media pads
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* @npads: number of pads (1 or 2)
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* @has_input: whether an input is connected to the sink pad
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* @formats: active V4L2 media bus format for each pad
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* @default_format: default V4L2 media bus format
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* @vip_format: format information corresponding to the active format
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* @bayer: boolean flag if TPG is set to any bayer format
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* @ctrl_handler: control handler
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* @hblank: horizontal blanking control
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* @vblank: vertical blanking control
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* @pattern: test pattern control
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* @streaming: is the video stream active
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* @vtc: video timing controller
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* @vtmux_gpio: video timing mux GPIO
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*/
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struct xtpg_device {
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struct xvip_device xvip;
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struct media_pad pads[2];
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unsigned int npads;
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bool has_input;
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struct v4l2_mbus_framefmt formats[2];
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struct v4l2_mbus_framefmt default_format;
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const struct xvip_video_format *vip_format;
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bool bayer;
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struct v4l2_ctrl_handler ctrl_handler;
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struct v4l2_ctrl *hblank;
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struct v4l2_ctrl *vblank;
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struct v4l2_ctrl *pattern;
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bool streaming;
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struct xvtc_device *vtc;
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struct gpio_desc *vtmux_gpio;
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};
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static inline struct xtpg_device *to_tpg(struct v4l2_subdev *subdev)
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{
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return container_of(subdev, struct xtpg_device, xvip.subdev);
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}
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static u32 xtpg_get_bayer_phase(unsigned int code)
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{
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switch (code) {
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case MEDIA_BUS_FMT_SRGGB8_1X8:
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return XTPG_BAYER_PHASE_RGGB;
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case MEDIA_BUS_FMT_SGRBG8_1X8:
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return XTPG_BAYER_PHASE_GRBG;
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case MEDIA_BUS_FMT_SGBRG8_1X8:
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return XTPG_BAYER_PHASE_GBRG;
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case MEDIA_BUS_FMT_SBGGR8_1X8:
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return XTPG_BAYER_PHASE_BGGR;
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default:
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return XTPG_BAYER_PHASE_OFF;
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}
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}
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static void __xtpg_update_pattern_control(struct xtpg_device *xtpg,
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bool passthrough, bool pattern)
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{
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u32 pattern_mask = (1 << (xtpg->pattern->maximum + 1)) - 1;
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/*
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* If the TPG has no sink pad or no input connected to its sink pad
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* passthrough mode can't be enabled.
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*/
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if (xtpg->npads == 1 || !xtpg->has_input)
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passthrough = false;
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/* If passthrough mode is allowed unmask bit 0. */
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if (passthrough)
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pattern_mask &= ~1;
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/* If test pattern mode is allowed unmask all other bits. */
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if (pattern)
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pattern_mask &= 1;
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__v4l2_ctrl_modify_range(xtpg->pattern, 0, xtpg->pattern->maximum,
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pattern_mask, pattern ? 9 : 0);
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}
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static void xtpg_update_pattern_control(struct xtpg_device *xtpg,
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bool passthrough, bool pattern)
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{
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mutex_lock(xtpg->ctrl_handler.lock);
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__xtpg_update_pattern_control(xtpg, passthrough, pattern);
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mutex_unlock(xtpg->ctrl_handler.lock);
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}
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/* -----------------------------------------------------------------------------
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* V4L2 Subdevice Video Operations
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*/
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static int xtpg_s_stream(struct v4l2_subdev *subdev, int enable)
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{
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struct xtpg_device *xtpg = to_tpg(subdev);
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unsigned int width = xtpg->formats[0].width;
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unsigned int height = xtpg->formats[0].height;
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bool passthrough;
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u32 bayer_phase;
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if (!enable) {
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xvip_stop(&xtpg->xvip);
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if (xtpg->vtc)
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xvtc_generator_stop(xtpg->vtc);
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xtpg_update_pattern_control(xtpg, true, true);
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xtpg->streaming = false;
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return 0;
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}
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xvip_set_frame_size(&xtpg->xvip, &xtpg->formats[0]);
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if (xtpg->vtc) {
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struct xvtc_config config = {
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.hblank_start = width,
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.hsync_start = width + 1,
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.vblank_start = height,
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.vsync_start = height + 1,
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};
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unsigned int htotal;
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unsigned int vtotal;
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htotal = min_t(unsigned int, XVTC_MAX_HSIZE,
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v4l2_ctrl_g_ctrl(xtpg->hblank) + width);
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vtotal = min_t(unsigned int, XVTC_MAX_VSIZE,
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v4l2_ctrl_g_ctrl(xtpg->vblank) + height);
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config.hsync_end = htotal - 1;
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config.hsize = htotal;
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config.vsync_end = vtotal - 1;
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config.vsize = vtotal;
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xvtc_generator_start(xtpg->vtc, &config);
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}
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/*
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* Configure the bayer phase and video timing mux based on the
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* operation mode (passthrough or test pattern generation). The test
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* pattern can be modified by the control set handler, we thus need to
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* take the control lock here to avoid races.
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*/
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mutex_lock(xtpg->ctrl_handler.lock);
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xvip_clr_and_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
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XTPG_PATTERN_MASK, xtpg->pattern->cur.val);
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/*
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* Switching between passthrough and test pattern generation modes isn't
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* allowed during streaming, update the control range accordingly.
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*/
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passthrough = xtpg->pattern->cur.val == 0;
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__xtpg_update_pattern_control(xtpg, passthrough, !passthrough);
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xtpg->streaming = true;
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mutex_unlock(xtpg->ctrl_handler.lock);
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/*
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* For TPG v5.0, the bayer phase needs to be off for the pass through
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* mode, otherwise the external input would be subsampled.
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*/
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bayer_phase = passthrough ? XTPG_BAYER_PHASE_OFF
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: xtpg_get_bayer_phase(xtpg->formats[0].code);
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xvip_write(&xtpg->xvip, XTPG_BAYER_PHASE, bayer_phase);
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if (xtpg->vtmux_gpio)
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gpiod_set_value_cansleep(xtpg->vtmux_gpio, !passthrough);
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xvip_start(&xtpg->xvip);
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return 0;
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}
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/* -----------------------------------------------------------------------------
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* V4L2 Subdevice Pad Operations
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*/
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static struct v4l2_mbus_framefmt *
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__xtpg_get_pad_format(struct xtpg_device *xtpg,
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struct v4l2_subdev_pad_config *cfg,
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unsigned int pad, u32 which)
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{
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switch (which) {
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case V4L2_SUBDEV_FORMAT_TRY:
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return v4l2_subdev_get_try_format(&xtpg->xvip.subdev, cfg, pad);
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case V4L2_SUBDEV_FORMAT_ACTIVE:
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return &xtpg->formats[pad];
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default:
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return NULL;
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}
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}
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static int xtpg_get_format(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_format *fmt)
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{
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struct xtpg_device *xtpg = to_tpg(subdev);
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fmt->format = *__xtpg_get_pad_format(xtpg, cfg, fmt->pad, fmt->which);
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return 0;
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}
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static int xtpg_set_format(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_format *fmt)
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{
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struct xtpg_device *xtpg = to_tpg(subdev);
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struct v4l2_mbus_framefmt *__format;
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u32 bayer_phase;
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__format = __xtpg_get_pad_format(xtpg, cfg, fmt->pad, fmt->which);
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/* In two pads mode the source pad format is always identical to the
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* sink pad format.
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*/
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if (xtpg->npads == 2 && fmt->pad == 1) {
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fmt->format = *__format;
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return 0;
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}
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/* Bayer phase is configurable at runtime */
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if (xtpg->bayer) {
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bayer_phase = xtpg_get_bayer_phase(fmt->format.code);
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if (bayer_phase != XTPG_BAYER_PHASE_OFF)
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__format->code = fmt->format.code;
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}
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xvip_set_format_size(__format, fmt);
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fmt->format = *__format;
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/* Propagate the format to the source pad. */
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if (xtpg->npads == 2) {
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__format = __xtpg_get_pad_format(xtpg, cfg, 1, fmt->which);
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*__format = fmt->format;
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}
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return 0;
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}
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/* -----------------------------------------------------------------------------
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* V4L2 Subdevice Operations
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*/
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static int xtpg_enum_frame_size(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_frame_size_enum *fse)
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{
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struct v4l2_mbus_framefmt *format;
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format = v4l2_subdev_get_try_format(subdev, cfg, fse->pad);
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if (fse->index || fse->code != format->code)
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return -EINVAL;
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/* Min / max values for pad 0 is always fixed in both one and two pads
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* modes. In two pads mode, the source pad(= 1) size is identical to
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* the sink pad size */
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if (fse->pad == 0) {
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fse->min_width = XVIP_MIN_WIDTH;
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fse->max_width = XVIP_MAX_WIDTH;
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fse->min_height = XVIP_MIN_HEIGHT;
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fse->max_height = XVIP_MAX_HEIGHT;
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} else {
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fse->min_width = format->width;
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fse->max_width = format->width;
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fse->min_height = format->height;
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fse->max_height = format->height;
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}
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return 0;
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}
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static int xtpg_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
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{
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struct xtpg_device *xtpg = to_tpg(subdev);
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struct v4l2_mbus_framefmt *format;
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format = v4l2_subdev_get_try_format(subdev, fh->pad, 0);
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*format = xtpg->default_format;
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if (xtpg->npads == 2) {
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format = v4l2_subdev_get_try_format(subdev, fh->pad, 1);
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*format = xtpg->default_format;
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}
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return 0;
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}
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static int xtpg_close(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
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{
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return 0;
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}
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static int xtpg_s_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct xtpg_device *xtpg = container_of(ctrl->handler,
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struct xtpg_device,
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ctrl_handler);
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switch (ctrl->id) {
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case V4L2_CID_TEST_PATTERN:
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xvip_clr_and_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
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XTPG_PATTERN_MASK, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_CROSS_HAIRS:
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xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
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XTPG_PATTERN_CONTROL_CROSS_HAIRS, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_MOVING_BOX:
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xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
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XTPG_PATTERN_CONTROL_MOVING_BOX, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_COLOR_MASK:
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xvip_clr_and_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
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XTPG_PATTERN_CONTROL_COLOR_MASK_MASK,
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ctrl->val <<
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XTPG_PATTERN_CONTROL_COLOR_MASK_SHIFT);
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return 0;
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case V4L2_CID_XILINX_TPG_STUCK_PIXEL:
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xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
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XTPG_PATTERN_CONTROL_STUCK_PIXEL, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_NOISE:
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xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
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XTPG_PATTERN_CONTROL_NOISE, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_MOTION:
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xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
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XTPG_PATTERN_CONTROL_MOTION, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_MOTION_SPEED:
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xvip_write(&xtpg->xvip, XTPG_MOTION_SPEED, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_CROSS_HAIR_ROW:
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xvip_clr_and_set(&xtpg->xvip, XTPG_CROSS_HAIRS,
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XTPG_CROSS_HAIRS_ROW_MASK,
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ctrl->val << XTPG_CROSS_HAIRS_ROW_SHIFT);
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return 0;
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case V4L2_CID_XILINX_TPG_CROSS_HAIR_COLUMN:
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xvip_clr_and_set(&xtpg->xvip, XTPG_CROSS_HAIRS,
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XTPG_CROSS_HAIRS_COLUMN_MASK,
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ctrl->val << XTPG_CROSS_HAIRS_COLUMN_SHIFT);
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return 0;
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case V4L2_CID_XILINX_TPG_ZPLATE_HOR_START:
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xvip_clr_and_set(&xtpg->xvip, XTPG_ZPLATE_HOR_CONTROL,
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XTPG_ZPLATE_START_MASK,
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ctrl->val << XTPG_ZPLATE_START_SHIFT);
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return 0;
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case V4L2_CID_XILINX_TPG_ZPLATE_HOR_SPEED:
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xvip_clr_and_set(&xtpg->xvip, XTPG_ZPLATE_HOR_CONTROL,
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XTPG_ZPLATE_SPEED_MASK,
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ctrl->val << XTPG_ZPLATE_SPEED_SHIFT);
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return 0;
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case V4L2_CID_XILINX_TPG_ZPLATE_VER_START:
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xvip_clr_and_set(&xtpg->xvip, XTPG_ZPLATE_VER_CONTROL,
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XTPG_ZPLATE_START_MASK,
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ctrl->val << XTPG_ZPLATE_START_SHIFT);
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return 0;
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case V4L2_CID_XILINX_TPG_ZPLATE_VER_SPEED:
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xvip_clr_and_set(&xtpg->xvip, XTPG_ZPLATE_VER_CONTROL,
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XTPG_ZPLATE_SPEED_MASK,
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ctrl->val << XTPG_ZPLATE_SPEED_SHIFT);
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return 0;
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case V4L2_CID_XILINX_TPG_BOX_SIZE:
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xvip_write(&xtpg->xvip, XTPG_BOX_SIZE, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_BOX_COLOR:
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xvip_write(&xtpg->xvip, XTPG_BOX_COLOR, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_STUCK_PIXEL_THRESH:
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xvip_write(&xtpg->xvip, XTPG_STUCK_PIXEL_THRESH, ctrl->val);
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return 0;
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case V4L2_CID_XILINX_TPG_NOISE_GAIN:
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xvip_write(&xtpg->xvip, XTPG_NOISE_GAIN, ctrl->val);
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return 0;
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}
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return 0;
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}
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static const struct v4l2_ctrl_ops xtpg_ctrl_ops = {
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.s_ctrl = xtpg_s_ctrl,
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};
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static const struct v4l2_subdev_core_ops xtpg_core_ops = {
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};
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static const struct v4l2_subdev_video_ops xtpg_video_ops = {
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.s_stream = xtpg_s_stream,
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};
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static const struct v4l2_subdev_pad_ops xtpg_pad_ops = {
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.enum_mbus_code = xvip_enum_mbus_code,
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.enum_frame_size = xtpg_enum_frame_size,
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.get_fmt = xtpg_get_format,
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.set_fmt = xtpg_set_format,
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};
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static const struct v4l2_subdev_ops xtpg_ops = {
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.core = &xtpg_core_ops,
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.video = &xtpg_video_ops,
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.pad = &xtpg_pad_ops,
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};
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static const struct v4l2_subdev_internal_ops xtpg_internal_ops = {
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.open = xtpg_open,
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.close = xtpg_close,
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};
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/*
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* Control Config
|
*/
|
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static const char *const xtpg_pattern_strings[] = {
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"Passthrough",
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"Horizontal Ramp",
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"Vertical Ramp",
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"Temporal Ramp",
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"Solid Red",
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"Solid Green",
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"Solid Blue",
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"Solid Black",
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"Solid White",
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"Color Bars",
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"Zone Plate",
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"Tartan Color Bars",
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"Cross Hatch",
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"None",
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"Vertical/Horizontal Ramps",
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"Black/White Checker Board",
|
};
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static struct v4l2_ctrl_config xtpg_ctrls[] = {
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{
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.ops = &xtpg_ctrl_ops,
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.id = V4L2_CID_XILINX_TPG_CROSS_HAIRS,
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.name = "Test Pattern: Cross Hairs",
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.min = false,
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.max = true,
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.step = 1,
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.def = 0,
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}, {
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.ops = &xtpg_ctrl_ops,
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.id = V4L2_CID_XILINX_TPG_MOVING_BOX,
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.name = "Test Pattern: Moving Box",
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.min = false,
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.max = true,
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.step = 1,
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.def = 0,
|
}, {
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.ops = &xtpg_ctrl_ops,
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.id = V4L2_CID_XILINX_TPG_COLOR_MASK,
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.name = "Test Pattern: Color Mask",
|
.type = V4L2_CTRL_TYPE_BITMASK,
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.min = 0,
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.max = 0xf,
|
.def = 0,
|
}, {
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.ops = &xtpg_ctrl_ops,
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.id = V4L2_CID_XILINX_TPG_STUCK_PIXEL,
|
.name = "Test Pattern: Stuck Pixel",
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
.min = false,
|
.max = true,
|
.step = 1,
|
.def = 0,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_NOISE,
|
.name = "Test Pattern: Noise",
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
.min = false,
|
.max = true,
|
.step = 1,
|
.def = 0,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_MOTION,
|
.name = "Test Pattern: Motion",
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
.min = false,
|
.max = true,
|
.step = 1,
|
.def = 0,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_MOTION_SPEED,
|
.name = "Test Pattern: Motion Speed",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 8) - 1,
|
.step = 1,
|
.def = 4,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_CROSS_HAIR_ROW,
|
.name = "Test Pattern: Cross Hairs Row",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 12) - 1,
|
.step = 1,
|
.def = 0x64,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_CROSS_HAIR_COLUMN,
|
.name = "Test Pattern: Cross Hairs Column",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 12) - 1,
|
.step = 1,
|
.def = 0x64,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_ZPLATE_HOR_START,
|
.name = "Test Pattern: Zplate Horizontal Start Pos",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 16) - 1,
|
.step = 1,
|
.def = 0x1e,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_ZPLATE_HOR_SPEED,
|
.name = "Test Pattern: Zplate Horizontal Speed",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 16) - 1,
|
.step = 1,
|
.def = 0,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_ZPLATE_VER_START,
|
.name = "Test Pattern: Zplate Vertical Start Pos",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 16) - 1,
|
.step = 1,
|
.def = 1,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_ZPLATE_VER_SPEED,
|
.name = "Test Pattern: Zplate Vertical Speed",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 16) - 1,
|
.step = 1,
|
.def = 0,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_BOX_SIZE,
|
.name = "Test Pattern: Box Size",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 12) - 1,
|
.step = 1,
|
.def = 0x32,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_BOX_COLOR,
|
.name = "Test Pattern: Box Color(RGB)",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 24) - 1,
|
.step = 1,
|
.def = 0,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_STUCK_PIXEL_THRESH,
|
.name = "Test Pattern: Stuck Pixel threshold",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 16) - 1,
|
.step = 1,
|
.def = 0,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
}, {
|
.ops = &xtpg_ctrl_ops,
|
.id = V4L2_CID_XILINX_TPG_NOISE_GAIN,
|
.name = "Test Pattern: Noise Gain",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = (1 << 8) - 1,
|
.step = 1,
|
.def = 0,
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
},
|
};
|
|
/* -----------------------------------------------------------------------------
|
* Media Operations
|
*/
|
|
static const struct media_entity_operations xtpg_media_ops = {
|
.link_validate = v4l2_subdev_link_validate,
|
};
|
|
/* -----------------------------------------------------------------------------
|
* Power Management
|
*/
|
|
static int __maybe_unused xtpg_pm_suspend(struct device *dev)
|
{
|
struct xtpg_device *xtpg = dev_get_drvdata(dev);
|
|
xvip_suspend(&xtpg->xvip);
|
|
return 0;
|
}
|
|
static int __maybe_unused xtpg_pm_resume(struct device *dev)
|
{
|
struct xtpg_device *xtpg = dev_get_drvdata(dev);
|
|
xvip_resume(&xtpg->xvip);
|
|
return 0;
|
}
|
|
/* -----------------------------------------------------------------------------
|
* Platform Device Driver
|
*/
|
|
static int xtpg_parse_of(struct xtpg_device *xtpg)
|
{
|
struct device *dev = xtpg->xvip.dev;
|
struct device_node *node = xtpg->xvip.dev->of_node;
|
struct device_node *ports;
|
struct device_node *port;
|
unsigned int nports = 0;
|
bool has_endpoint = false;
|
|
ports = of_get_child_by_name(node, "ports");
|
if (ports == NULL)
|
ports = node;
|
|
for_each_child_of_node(ports, port) {
|
const struct xvip_video_format *format;
|
struct device_node *endpoint;
|
|
if (!of_node_name_eq(port, "port"))
|
continue;
|
|
format = xvip_of_get_format(port);
|
if (IS_ERR(format)) {
|
dev_err(dev, "invalid format in DT");
|
of_node_put(port);
|
return PTR_ERR(format);
|
}
|
|
/* Get and check the format description */
|
if (!xtpg->vip_format) {
|
xtpg->vip_format = format;
|
} else if (xtpg->vip_format != format) {
|
dev_err(dev, "in/out format mismatch in DT");
|
of_node_put(port);
|
return -EINVAL;
|
}
|
|
if (nports == 0) {
|
endpoint = of_get_next_child(port, NULL);
|
if (endpoint)
|
has_endpoint = true;
|
of_node_put(endpoint);
|
}
|
|
/* Count the number of ports. */
|
nports++;
|
}
|
|
if (nports != 1 && nports != 2) {
|
dev_err(dev, "invalid number of ports %u\n", nports);
|
return -EINVAL;
|
}
|
|
xtpg->npads = nports;
|
if (nports == 2 && has_endpoint)
|
xtpg->has_input = true;
|
|
return 0;
|
}
|
|
static int xtpg_probe(struct platform_device *pdev)
|
{
|
struct v4l2_subdev *subdev;
|
struct xtpg_device *xtpg;
|
u32 i, bayer_phase;
|
int ret;
|
|
xtpg = devm_kzalloc(&pdev->dev, sizeof(*xtpg), GFP_KERNEL);
|
if (!xtpg)
|
return -ENOMEM;
|
|
xtpg->xvip.dev = &pdev->dev;
|
|
ret = xtpg_parse_of(xtpg);
|
if (ret < 0)
|
return ret;
|
|
ret = xvip_init_resources(&xtpg->xvip);
|
if (ret < 0)
|
return ret;
|
|
xtpg->vtmux_gpio = devm_gpiod_get_optional(&pdev->dev, "timing",
|
GPIOD_OUT_HIGH);
|
if (IS_ERR(xtpg->vtmux_gpio)) {
|
ret = PTR_ERR(xtpg->vtmux_gpio);
|
goto error_resource;
|
}
|
|
xtpg->vtc = xvtc_of_get(pdev->dev.of_node);
|
if (IS_ERR(xtpg->vtc)) {
|
ret = PTR_ERR(xtpg->vtc);
|
goto error_resource;
|
}
|
|
/* Reset and initialize the core */
|
xvip_reset(&xtpg->xvip);
|
|
/* Initialize V4L2 subdevice and media entity. Pad numbers depend on the
|
* number of pads.
|
*/
|
if (xtpg->npads == 2) {
|
xtpg->pads[0].flags = MEDIA_PAD_FL_SINK;
|
xtpg->pads[1].flags = MEDIA_PAD_FL_SOURCE;
|
} else {
|
xtpg->pads[0].flags = MEDIA_PAD_FL_SOURCE;
|
}
|
|
/* Initialize the default format */
|
xtpg->default_format.code = xtpg->vip_format->code;
|
xtpg->default_format.field = V4L2_FIELD_NONE;
|
xtpg->default_format.colorspace = V4L2_COLORSPACE_SRGB;
|
xvip_get_frame_size(&xtpg->xvip, &xtpg->default_format);
|
|
bayer_phase = xtpg_get_bayer_phase(xtpg->vip_format->code);
|
if (bayer_phase != XTPG_BAYER_PHASE_OFF)
|
xtpg->bayer = true;
|
|
xtpg->formats[0] = xtpg->default_format;
|
if (xtpg->npads == 2)
|
xtpg->formats[1] = xtpg->default_format;
|
|
/* Initialize V4L2 subdevice and media entity */
|
subdev = &xtpg->xvip.subdev;
|
v4l2_subdev_init(subdev, &xtpg_ops);
|
subdev->dev = &pdev->dev;
|
subdev->internal_ops = &xtpg_internal_ops;
|
strscpy(subdev->name, dev_name(&pdev->dev), sizeof(subdev->name));
|
v4l2_set_subdevdata(subdev, xtpg);
|
subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
subdev->entity.ops = &xtpg_media_ops;
|
|
ret = media_entity_pads_init(&subdev->entity, xtpg->npads, xtpg->pads);
|
if (ret < 0)
|
goto error;
|
|
v4l2_ctrl_handler_init(&xtpg->ctrl_handler, 3 + ARRAY_SIZE(xtpg_ctrls));
|
|
xtpg->vblank = v4l2_ctrl_new_std(&xtpg->ctrl_handler, &xtpg_ctrl_ops,
|
V4L2_CID_VBLANK, XTPG_MIN_VBLANK,
|
XTPG_MAX_VBLANK, 1, 100);
|
xtpg->hblank = v4l2_ctrl_new_std(&xtpg->ctrl_handler, &xtpg_ctrl_ops,
|
V4L2_CID_HBLANK, XTPG_MIN_HBLANK,
|
XTPG_MAX_HBLANK, 1, 100);
|
xtpg->pattern = v4l2_ctrl_new_std_menu_items(&xtpg->ctrl_handler,
|
&xtpg_ctrl_ops, V4L2_CID_TEST_PATTERN,
|
ARRAY_SIZE(xtpg_pattern_strings) - 1,
|
1, 9, xtpg_pattern_strings);
|
|
for (i = 0; i < ARRAY_SIZE(xtpg_ctrls); i++)
|
v4l2_ctrl_new_custom(&xtpg->ctrl_handler, &xtpg_ctrls[i], NULL);
|
|
if (xtpg->ctrl_handler.error) {
|
dev_err(&pdev->dev, "failed to add controls\n");
|
ret = xtpg->ctrl_handler.error;
|
goto error;
|
}
|
subdev->ctrl_handler = &xtpg->ctrl_handler;
|
|
xtpg_update_pattern_control(xtpg, true, true);
|
|
ret = v4l2_ctrl_handler_setup(&xtpg->ctrl_handler);
|
if (ret < 0) {
|
dev_err(&pdev->dev, "failed to set controls\n");
|
goto error;
|
}
|
|
platform_set_drvdata(pdev, xtpg);
|
|
xvip_print_version(&xtpg->xvip);
|
|
ret = v4l2_async_register_subdev(subdev);
|
if (ret < 0) {
|
dev_err(&pdev->dev, "failed to register subdev\n");
|
goto error;
|
}
|
|
return 0;
|
|
error:
|
v4l2_ctrl_handler_free(&xtpg->ctrl_handler);
|
media_entity_cleanup(&subdev->entity);
|
xvtc_put(xtpg->vtc);
|
error_resource:
|
xvip_cleanup_resources(&xtpg->xvip);
|
return ret;
|
}
|
|
static int xtpg_remove(struct platform_device *pdev)
|
{
|
struct xtpg_device *xtpg = platform_get_drvdata(pdev);
|
struct v4l2_subdev *subdev = &xtpg->xvip.subdev;
|
|
v4l2_async_unregister_subdev(subdev);
|
v4l2_ctrl_handler_free(&xtpg->ctrl_handler);
|
media_entity_cleanup(&subdev->entity);
|
|
xvip_cleanup_resources(&xtpg->xvip);
|
|
return 0;
|
}
|
|
static SIMPLE_DEV_PM_OPS(xtpg_pm_ops, xtpg_pm_suspend, xtpg_pm_resume);
|
|
static const struct of_device_id xtpg_of_id_table[] = {
|
{ .compatible = "xlnx,v-tpg-5.0" },
|
{ }
|
};
|
MODULE_DEVICE_TABLE(of, xtpg_of_id_table);
|
|
static struct platform_driver xtpg_driver = {
|
.driver = {
|
.name = "xilinx-tpg",
|
.pm = &xtpg_pm_ops,
|
.of_match_table = xtpg_of_id_table,
|
},
|
.probe = xtpg_probe,
|
.remove = xtpg_remove,
|
};
|
|
module_platform_driver(xtpg_driver);
|
|
MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
|
MODULE_DESCRIPTION("Xilinx Test Pattern Generator Driver");
|
MODULE_LICENSE("GPL v2");
|
