@@ -0,0 +1,921 @@
+/*
+ * Xilinx Test Pattern Generator
+ *
+ * Copyright (C) 2013-2014 Ideas on Board
+ * Copyright (C) 2013-2014 Xilinx, Inc.
+ *
+ * Contacts: Hyun Kwon <hyun.kwon@xilinx.com>
+ * Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/xilinx-v4l2-controls.h>
+
+#include <media/v4l2-async.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-subdev.h>
+
+#include "xilinx-vip.h"
+#include "xilinx-vtc.h"
+
+#define XTPG_CTRL_STATUS_SLAVE_ERROR (1 << 16)
+#define XTPG_CTRL_IRQ_SLAVE_ERROR (1 << 16)
+
+#define XTPG_PATTERN_CONTROL 0x0100
+#define XTPG_PATTERN_MASK (0xf << 0)
+#define XTPG_PATTERN_CONTROL_CROSS_HAIRS (1 << 4)
+#define XTPG_PATTERN_CONTROL_MOVING_BOX (1 << 5)
+#define XTPG_PATTERN_CONTROL_COLOR_MASK_SHIFT 6
+#define XTPG_PATTERN_CONTROL_COLOR_MASK_MASK (0xf << 6)
+#define XTPG_PATTERN_CONTROL_STUCK_PIXEL (1 << 9)
+#define XTPG_PATTERN_CONTROL_NOISE (1 << 10)
+#define XTPG_PATTERN_CONTROL_MOTION (1 << 12)
+#define XTPG_MOTION_SPEED 0x0104
+#define XTPG_CROSS_HAIRS 0x0108
+#define XTPG_CROSS_HAIRS_ROW_SHIFT 0
+#define XTPG_CROSS_HAIRS_ROW_MASK (0xfff << 0)
+#define XTPG_CROSS_HAIRS_COLUMN_SHIFT 16
+#define XTPG_CROSS_HAIRS_COLUMN_MASK (0xfff << 16)
+#define XTPG_ZPLATE_HOR_CONTROL 0x010c
+#define XTPG_ZPLATE_VER_CONTROL 0x0110
+#define XTPG_ZPLATE_START_SHIFT 0
+#define XTPG_ZPLATE_START_MASK (0xffff << 0)
+#define XTPG_ZPLATE_SPEED_SHIFT 16
+#define XTPG_ZPLATE_SPEED_MASK (0xffff << 16)
+#define XTPG_BOX_SIZE 0x0114
+#define XTPG_BOX_COLOR 0x0118
+#define XTPG_STUCK_PIXEL_THRESH 0x011c
+#define XTPG_NOISE_GAIN 0x0120
+#define XTPG_BAYER_PHASE 0x0124
+#define XTPG_BAYER_PHASE_RGGB 0
+#define XTPG_BAYER_PHASE_GRBG 1
+#define XTPG_BAYER_PHASE_GBRG 2
+#define XTPG_BAYER_PHASE_BGGR 3
+#define XTPG_BAYER_PHASE_OFF 4
+
+/*
+ * The minimum blanking value is one clock cycle for the front porch, one clock
+ * cycle for the sync pulse and one clock cycle for the back porch.
+ */
+#define XTPG_MIN_HBLANK 3
+#define XTPG_MAX_HBLANK (XVTC_MAX_HSIZE - XVIP_MIN_WIDTH)
+#define XTPG_MIN_VBLANK 3
+#define XTPG_MAX_VBLANK (XVTC_MAX_VSIZE - XVIP_MIN_HEIGHT)
+
+/**
+ * struct xtpg_device - Xilinx Test Pattern Generator device structure
+ * @xvip: Xilinx Video IP device
+ * @pads: media pads
+ * @npads: number of pads (1 or 2)
+ * @has_input: whether an input is connected to the sink pad
+ * @formats: active V4L2 media bus format for each pad
+ * @default_format: default V4L2 media bus format
+ * @vip_format: format information corresponding to the active format
+ * @bayer: boolean flag if TPG is set to any bayer format
+ * @ctrl_handler: control handler
+ * @hblank: horizontal blanking control
+ * @vblank: vertical blanking control
+ * @pattern: test pattern control
+ * @streaming: is the video stream active
+ * @vtc: video timing controller
+ * @vtmux_gpio: video timing mux GPIO
+ */
+struct xtpg_device {
+ struct xvip_device xvip;
+
+ struct media_pad pads[2];
+ unsigned int npads;
+ bool has_input;
+
+ struct v4l2_mbus_framefmt formats[2];
+ struct v4l2_mbus_framefmt default_format;
+ const struct xvip_video_format *vip_format;
+ bool bayer;
+
+ struct v4l2_ctrl_handler ctrl_handler;
+ struct v4l2_ctrl *hblank;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *pattern;
+ bool streaming;
+
+ struct xvtc_device *vtc;
+ struct gpio_desc *vtmux_gpio;
+};
+
+static inline struct xtpg_device *to_tpg(struct v4l2_subdev *subdev)
+{
+ return container_of(subdev, struct xtpg_device, xvip.subdev);
+}
+
+static u32 xtpg_get_bayer_phase(unsigned int code)
+{
+ switch (code) {
+ case V4L2_MBUS_FMT_SRGGB8_1X8:
+ return XTPG_BAYER_PHASE_RGGB;
+ case V4L2_MBUS_FMT_SGRBG8_1X8:
+ return XTPG_BAYER_PHASE_GRBG;
+ case V4L2_MBUS_FMT_SGBRG8_1X8:
+ return XTPG_BAYER_PHASE_GBRG;
+ case V4L2_MBUS_FMT_SBGGR8_1X8:
+ return XTPG_BAYER_PHASE_BGGR;
+ default:
+ return XTPG_BAYER_PHASE_OFF;
+ }
+}
+
+static void __xtpg_update_pattern_control(struct xtpg_device *xtpg,
+ bool passthrough, bool pattern)
+{
+ u32 pattern_mask = (1 << (xtpg->pattern->maximum + 1)) - 1;
+
+ /*
+ * If the TPG has no sink pad or no input connected to its sink pad
+ * passthrough mode can't be enabled.
+ */
+ if (xtpg->npads == 1 || !xtpg->has_input)
+ passthrough = false;
+
+ /* If passthrough mode is allowed unmask bit 0. */
+ if (passthrough)
+ pattern_mask &= ~1;
+
+ /* If test pattern mode is allowed unmask all other bits. */
+ if (pattern)
+ pattern_mask &= 1;
+
+ __v4l2_ctrl_modify_range(xtpg->pattern, 0, xtpg->pattern->maximum,
+ pattern_mask, pattern ? 9 : 0);
+}
+
+static void xtpg_update_pattern_control(struct xtpg_device *xtpg,
+ bool passthrough, bool pattern)
+{
+ mutex_lock(xtpg->ctrl_handler.lock);
+ __xtpg_update_pattern_control(xtpg, passthrough, pattern);
+ mutex_unlock(xtpg->ctrl_handler.lock);
+}
+
+/* -----------------------------------------------------------------------------
+ * V4L2 Subdevice Video Operations
+ */
+
+static int xtpg_s_stream(struct v4l2_subdev *subdev, int enable)
+{
+ struct xtpg_device *xtpg = to_tpg(subdev);
+ unsigned int width = xtpg->formats[0].width;
+ unsigned int height = xtpg->formats[0].height;
+ bool passthrough;
+ u32 bayer_phase;
+
+ if (!enable) {
+ xvip_stop(&xtpg->xvip);
+ if (xtpg->vtc)
+ xvtc_generator_stop(xtpg->vtc);
+
+ xtpg_update_pattern_control(xtpg, true, true);
+ xtpg->streaming = false;
+ return 0;
+ }
+
+ xvip_set_frame_size(&xtpg->xvip, &xtpg->formats[0]);
+
+ if (xtpg->vtc) {
+ struct xvtc_config config = {
+ .hblank_start = width,
+ .hsync_start = width + 1,
+ .vblank_start = height,
+ .vsync_start = height + 1,
+ };
+ unsigned int htotal;
+ unsigned int vtotal;
+
+ htotal = min_t(unsigned int, XVTC_MAX_HSIZE,
+ v4l2_ctrl_g_ctrl(xtpg->hblank) + width);
+ vtotal = min_t(unsigned int, XVTC_MAX_VSIZE,
+ v4l2_ctrl_g_ctrl(xtpg->vblank) + height);
+
+ config.hsync_end = htotal - 1;
+ config.hsize = htotal;
+ config.vsync_end = vtotal - 1;
+ config.vsize = vtotal;
+
+ xvtc_generator_start(xtpg->vtc, &config);
+ }
+
+ /*
+ * Configure the bayer phase and video timing mux based on the
+ * operation mode (passthrough or test pattern generation). The test
+ * pattern can be modified by the control set handler, we thus need to
+ * take the control lock here to avoid races.
+ */
+ mutex_lock(xtpg->ctrl_handler.lock);
+
+ xvip_clr_and_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
+ XTPG_PATTERN_MASK, xtpg->pattern->cur.val);
+
+ /*
+ * Switching between passthrough and test pattern generation modes isn't
+ * allowed during streaming, update the control range accordingly.
+ */
+ passthrough = xtpg->pattern->cur.val == 0;
+ __xtpg_update_pattern_control(xtpg, passthrough, !passthrough);
+
+ xtpg->streaming = true;
+
+ mutex_unlock(xtpg->ctrl_handler.lock);
+
+ /*
+ * For TPG v5.0, the bayer phase needs to be off for the pass through
+ * mode, otherwise the external input would be subsampled.
+ */
+ bayer_phase = passthrough ? XTPG_BAYER_PHASE_OFF
+ : xtpg_get_bayer_phase(xtpg->formats[0].code);
+ xvip_write(&xtpg->xvip, XTPG_BAYER_PHASE, bayer_phase);
+
+ if (xtpg->vtmux_gpio)
+ gpiod_set_value_cansleep(xtpg->vtmux_gpio, !passthrough);
+
+ xvip_start(&xtpg->xvip);
+
+ return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * V4L2 Subdevice Pad Operations
+ */
+
+static struct v4l2_mbus_framefmt *
+__xtpg_get_pad_format(struct xtpg_device *xtpg, struct v4l2_subdev_fh *fh,
+ unsigned int pad, u32 which)
+{
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_get_try_format(fh, pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return &xtpg->formats[pad];
+ default:
+ return NULL;
+ }
+}
+
+static int xtpg_get_format(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *fmt)
+{
+ struct xtpg_device *xtpg = to_tpg(subdev);
+
+ fmt->format = *__xtpg_get_pad_format(xtpg, fh, fmt->pad, fmt->which);
+
+ return 0;
+}
+
+static int xtpg_set_format(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *fmt)
+{
+ struct xtpg_device *xtpg = to_tpg(subdev);
+ struct v4l2_mbus_framefmt *__format;
+ u32 bayer_phase;
+
+ __format = __xtpg_get_pad_format(xtpg, fh, fmt->pad, fmt->which);
+
+ /* In two pads mode the source pad format is always identical to the
+ * sink pad format.
+ */
+ if (xtpg->npads == 2 && fmt->pad == 1) {
+ fmt->format = *__format;
+ return 0;
+ }
+
+ /* Bayer phase is configurable at runtime */
+ if (xtpg->bayer) {
+ bayer_phase = xtpg_get_bayer_phase(fmt->format.code);
+ if (bayer_phase != XTPG_BAYER_PHASE_OFF)
+ __format->code = fmt->format.code;
+ }
+
+ xvip_set_format_size(__format, fmt);
+
+ fmt->format = *__format;
+
+ /* Propagate the format to the source pad. */
+ if (xtpg->npads == 2) {
+ __format = __xtpg_get_pad_format(xtpg, fh, 1, fmt->which);
+ *__format = fmt->format;
+ }
+
+ return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * V4L2 Subdevice Operations
+ */
+
+static int xtpg_enum_frame_size(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ struct v4l2_mbus_framefmt *format;
+
+ format = v4l2_subdev_get_try_format(fh, fse->pad);
+
+ if (fse->index || fse->code != format->code)
+ return -EINVAL;
+
+ /* Min / max values for pad 0 is always fixed in both one and two pads
+ * modes. In two pads mode, the source pad(= 1) size is identical to
+ * the sink pad size */
+ if (fse->pad == 0) {
+ fse->min_width = XVIP_MIN_WIDTH;
+ fse->max_width = XVIP_MAX_WIDTH;
+ fse->min_height = XVIP_MIN_HEIGHT;
+ fse->max_height = XVIP_MAX_HEIGHT;
+ } else {
+ fse->min_width = format->width;
+ fse->max_width = format->width;
+ fse->min_height = format->height;
+ fse->max_height = format->height;
+ }
+
+ return 0;
+}
+
+static int xtpg_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
+{
+ struct xtpg_device *xtpg = to_tpg(subdev);
+
+ *v4l2_subdev_get_try_format(fh, 0) = xtpg->default_format;
+
+ if (xtpg->npads == 2)
+ *v4l2_subdev_get_try_format(fh, 1) = xtpg->default_format;
+
+ return 0;
+}
+
+static int xtpg_close(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
+{
+ return 0;
+}
+
+static int xtpg_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct xtpg_device *xtpg = container_of(ctrl->handler,
+ struct xtpg_device,
+ ctrl_handler);
+ switch (ctrl->id) {
+ case V4L2_CID_TEST_PATTERN:
+ xvip_clr_and_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
+ XTPG_PATTERN_MASK, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_CROSS_HAIRS:
+ xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
+ XTPG_PATTERN_CONTROL_CROSS_HAIRS, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_MOVING_BOX:
+ xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
+ XTPG_PATTERN_CONTROL_MOVING_BOX, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_COLOR_MASK:
+ xvip_clr_and_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
+ XTPG_PATTERN_CONTROL_COLOR_MASK_MASK,
+ ctrl->val <<
+ XTPG_PATTERN_CONTROL_COLOR_MASK_SHIFT);
+ return 0;
+ case V4L2_CID_XILINX_TPG_STUCK_PIXEL:
+ xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
+ XTPG_PATTERN_CONTROL_STUCK_PIXEL, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_NOISE:
+ xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
+ XTPG_PATTERN_CONTROL_NOISE, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_MOTION:
+ xvip_clr_or_set(&xtpg->xvip, XTPG_PATTERN_CONTROL,
+ XTPG_PATTERN_CONTROL_MOTION, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_MOTION_SPEED:
+ xvip_write(&xtpg->xvip, XTPG_MOTION_SPEED, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_CROSS_HAIR_ROW:
+ xvip_clr_and_set(&xtpg->xvip, XTPG_CROSS_HAIRS,
+ XTPG_CROSS_HAIRS_ROW_MASK,
+ ctrl->val << XTPG_CROSS_HAIRS_ROW_SHIFT);
+ return 0;
+ case V4L2_CID_XILINX_TPG_CROSS_HAIR_COLUMN:
+ xvip_clr_and_set(&xtpg->xvip, XTPG_CROSS_HAIRS,
+ XTPG_CROSS_HAIRS_COLUMN_MASK,
+ ctrl->val << XTPG_CROSS_HAIRS_COLUMN_SHIFT);
+ return 0;
+ case V4L2_CID_XILINX_TPG_ZPLATE_HOR_START:
+ xvip_clr_and_set(&xtpg->xvip, XTPG_ZPLATE_HOR_CONTROL,
+ XTPG_ZPLATE_START_MASK,
+ ctrl->val << XTPG_ZPLATE_START_SHIFT);
+ return 0;
+ case V4L2_CID_XILINX_TPG_ZPLATE_HOR_SPEED:
+ xvip_clr_and_set(&xtpg->xvip, XTPG_ZPLATE_HOR_CONTROL,
+ XTPG_ZPLATE_SPEED_MASK,
+ ctrl->val << XTPG_ZPLATE_SPEED_SHIFT);
+ return 0;
+ case V4L2_CID_XILINX_TPG_ZPLATE_VER_START:
+ xvip_clr_and_set(&xtpg->xvip, XTPG_ZPLATE_VER_CONTROL,
+ XTPG_ZPLATE_START_MASK,
+ ctrl->val << XTPG_ZPLATE_START_SHIFT);
+ return 0;
+ case V4L2_CID_XILINX_TPG_ZPLATE_VER_SPEED:
+ xvip_clr_and_set(&xtpg->xvip, XTPG_ZPLATE_VER_CONTROL,
+ XTPG_ZPLATE_SPEED_MASK,
+ ctrl->val << XTPG_ZPLATE_SPEED_SHIFT);
+ return 0;
+ case V4L2_CID_XILINX_TPG_BOX_SIZE:
+ xvip_write(&xtpg->xvip, XTPG_BOX_SIZE, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_BOX_COLOR:
+ xvip_write(&xtpg->xvip, XTPG_BOX_COLOR, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_STUCK_PIXEL_THRESH:
+ xvip_write(&xtpg->xvip, XTPG_STUCK_PIXEL_THRESH, ctrl->val);
+ return 0;
+ case V4L2_CID_XILINX_TPG_NOISE_GAIN:
+ xvip_write(&xtpg->xvip, XTPG_NOISE_GAIN, ctrl->val);
+ return 0;
+ }
+
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops xtpg_ctrl_ops = {
+ .s_ctrl = xtpg_s_ctrl,
+};
+
+static struct v4l2_subdev_core_ops xtpg_core_ops = {
+};
+
+static struct v4l2_subdev_video_ops xtpg_video_ops = {
+ .s_stream = xtpg_s_stream,
+};
+
+static struct v4l2_subdev_pad_ops xtpg_pad_ops = {
+ .enum_mbus_code = xvip_enum_mbus_code,
+ .enum_frame_size = xtpg_enum_frame_size,
+ .get_fmt = xtpg_get_format,
+ .set_fmt = xtpg_set_format,
+};
+
+static struct v4l2_subdev_ops xtpg_ops = {
+ .core = &xtpg_core_ops,
+ .video = &xtpg_video_ops,
+ .pad = &xtpg_pad_ops,
+};
+
+static const struct v4l2_subdev_internal_ops xtpg_internal_ops = {
+ .open = xtpg_open,
+ .close = xtpg_close,
+};
+
+/*
+ * Control Config
+ */
+
+static const char *const xtpg_pattern_strings[] = {
+ "Passthrough",
+ "Horizontal Ramp",
+ "Vertical Ramp",
+ "Temporal Ramp",
+ "Solid Red",
+ "Solid Green",
+ "Solid Blue",
+ "Solid Black",
+ "Solid White",
+ "Color Bars",
+ "Zone Plate",
+ "Tartan Color Bars",
+ "Cross Hatch",
+ "None",
+ "Vertical/Horizontal Ramps",
+ "Black/White Checker Board",
+};
+
+static struct v4l2_ctrl_config xtpg_ctrls[] = {
+ {
+ .ops = &xtpg_ctrl_ops,
+ .id = V4L2_CID_XILINX_TPG_CROSS_HAIRS,
+ .name = "Test Pattern: Cross Hairs",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = false,
+ .max = true,
+ .step = 1,
+ .def = 0,
+ }, {
+ .ops = &xtpg_ctrl_ops,
+ .id = V4L2_CID_XILINX_TPG_MOVING_BOX,
+ .name = "Test Pattern: Moving Box",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = false,
+ .max = true,
+ .step = 1,
+ .def = 0,
+ }, {
+ .ops = &xtpg_ctrl_ops,
+ .id = V4L2_CID_XILINX_TPG_COLOR_MASK,
+ .name = "Test Pattern: Color Mask",
+ .type = V4L2_CTRL_TYPE_BITMASK,
+ .min = 0,
+ .max = 0xf,
+ .def = 0,
+ }, {
+ .ops = &xtpg_ctrl_ops,
+ .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 threshhold",
+ .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 (!port->name || of_node_cmp(port->name, "port"))
+ continue;
+
+ format = xvip_of_get_format(port);
+ if (IS_ERR(format)) {
+ dev_err(dev, "invalid format in DT");
+ 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");
+ 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;
+ struct resource *res;
+ 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;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ xtpg->xvip.iomem = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(xtpg->xvip.iomem))
+ return PTR_ERR(xtpg->xvip.iomem);
+
+ xtpg->vtmux_gpio = devm_gpiod_get_optional(&pdev->dev, "timing",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(xtpg->vtmux_gpio))
+ return PTR_ERR(xtpg->vtmux_gpio);
+
+ xtpg->vtc = xvtc_of_get(pdev->dev.of_node);
+ if (IS_ERR(xtpg->vtc))
+ return PTR_ERR(xtpg->vtc);
+
+ /* 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;
+ strlcpy(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_init(&subdev->entity, xtpg->npads, xtpg->pads, 0);
+ if (ret < 0)
+ goto error_media_init;
+
+ 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);
+error_media_init:
+ xvtc_put(xtpg->vtc);
+ 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);
+
+ 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");