/*
 * Copyright (c) 2017 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 *
 * Core file for Samsung EXYNOS Scaler driver
 *
 * 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 "scaler.h"

#define CREATE_TRACE_POINTS
#include <trace/events/systrace.h>

static void show_crop(struct v4l2_rect *rect)
{
	pr_info("   - crop: L,T,W,H: %d, %d, %d, %d\n",
			rect->left, rect->top, rect->width, rect->height);
}

static void show_addr(struct sc_addr *addr)
{
	int i;

	for (i = 0; i < SC_MAX_PLANES; i++)
		pr_info("  * plane%d. addr: %#lx, size: %#x\n",
			i, (unsigned long)addr->ioaddr[i], addr->size[i]);
}

static void show_frame(char *name, struct sc_frame *frame)
{
	pr_info("  * %s) WxH : %d x %d\n", name, frame->width, frame->height);
	show_crop(&frame->crop);
	show_addr(&frame->addr);
	if (frame->sc_fmt)
		pr_info("  * Name : %s\n", frame->sc_fmt->name);

}

static void show_int_frame(struct sc_int_frame *i_frame)
{
	show_addr(&i_frame->src_addr);
	show_addr(&i_frame->dst_addr);
}

void sc_ctx_dump(struct sc_ctx *ctx)
{
	pr_info("> scaler context info <\n");
	show_frame("source", &ctx->s_frame);
	show_frame("dest", &ctx->d_frame);
	pr_info("  - h_ratio: %#x, v_ratio: %#x\n", ctx->h_ratio, ctx->v_ratio);
	pr_info("  - flip_rot_cfg: %#x\n", ctx->flip_rot_cfg);
	pr_info("  - flags: %#lx\n", ctx->flags);
	pr_info("  - %s\n", ctx->cp_enabled ? "secure" : "non-secure");

	if (test_bit(CTX_INT_FRAME, &ctx->flags)) {
		show_frame("Internal", &ctx->i_frame->frame);
		show_int_frame(ctx->i_frame);
	}
}

#define SC_TRACE_BUF_SIZE	(40)
void sc_tracing_mark_write(struct sc_ctx *ctx, char trace_id, const char *str,
			   int en)
{
	char buf[SC_TRACE_BUF_SIZE] = {0,};

	if (!ctx->pid)
		return;

	switch (trace_id) {
	case 'B': /* B : Begin */
		snprintf(buf, SC_TRACE_BUF_SIZE, "B|%d|%s", ctx->pid, str);
		break;
	case 'E': /* E : End */
		strcpy(buf, "E");
		break;
	case 'C': /* C : Category */
		snprintf(buf, SC_TRACE_BUF_SIZE,
			 "C|%d|%s|%d", ctx->pid, str, en);
		break;
	default:
		dev_err(ctx->sc_dev->dev,
			"%c is invalid arg for systrace\n", trace_id);
		return;
	}

	trace_tracing_mark_write(buf);
}