[deliverable/linux.git] / drivers / media / video / s5p-fimc / fimc-reg.c

/*
 * Register interface file for Samsung Camera Interface (FIMC) driver
 *
 * Copyright (c) 2010 Samsung Electronics
 *
 * Sylwester Nawrocki, s.nawrocki@samsung.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/io.h>
#include <linux/delay.h>
#include <mach/map.h>

#include "fimc-core.h"


void fimc_hw_reset(struct fimc_dev *dev)
{
	u32 cfg;

	cfg = readl(dev->regs + S5P_CISRCFMT);
	cfg |= S5P_CISRCFMT_ITU601_8BIT;
	writel(cfg, dev->regs + S5P_CISRCFMT);

	/* Software reset. */
	cfg = readl(dev->regs + S5P_CIGCTRL);
	cfg |= (S5P_CIGCTRL_SWRST | S5P_CIGCTRL_IRQ_LEVEL);
	writel(cfg, dev->regs + S5P_CIGCTRL);
	udelay(1000);

	cfg = readl(dev->regs + S5P_CIGCTRL);
	cfg &= ~S5P_CIGCTRL_SWRST;
	writel(cfg, dev->regs + S5P_CIGCTRL);

}

void fimc_hw_set_rotation(struct fimc_ctx *ctx)
{
	u32 cfg, flip;
	struct fimc_dev *dev = ctx->fimc_dev;

	cfg = readl(dev->regs + S5P_CITRGFMT);
	cfg &= ~(S5P_CITRGFMT_INROT90 | S5P_CITRGFMT_OUTROT90);

	flip = readl(dev->regs + S5P_MSCTRL);
	flip &= ~S5P_MSCTRL_FLIP_MASK;

	/*
	 * The input and output rotator cannot work simultaneously.
	 * Use the output rotator in output DMA mode or the input rotator
	 * in direct fifo output mode.
	 */
	if (ctx->rotation == 90 || ctx->rotation == 270) {
		if (ctx->out_path == FIMC_LCDFIFO) {
			cfg |= S5P_CITRGFMT_INROT90;
			if (ctx->rotation == 270)
				flip |= S5P_MSCTRL_FLIP_180;
		} else {
			cfg |= S5P_CITRGFMT_OUTROT90;
			if (ctx->rotation == 270)
				cfg |= S5P_CITRGFMT_FLIP_180;
		}
	} else if (ctx->rotation == 180) {
		if (ctx->out_path == FIMC_LCDFIFO)
			flip |= S5P_MSCTRL_FLIP_180;
		else
			cfg |= S5P_CITRGFMT_FLIP_180;
	}
	if (ctx->rotation == 180 || ctx->rotation == 270)
		writel(flip, dev->regs + S5P_MSCTRL);
	writel(cfg, dev->regs + S5P_CITRGFMT);
}

static u32 fimc_hw_get_in_flip(u32 ctx_flip)
{
	u32 flip = S5P_MSCTRL_FLIP_NORMAL;

	switch (ctx_flip) {
	case FLIP_X_AXIS:
		flip = S5P_MSCTRL_FLIP_X_MIRROR;
		break;
	case FLIP_Y_AXIS:
		flip = S5P_MSCTRL_FLIP_Y_MIRROR;
		break;
	case FLIP_XY_AXIS:
		flip = S5P_MSCTRL_FLIP_180;
		break;
	}

	return flip;
}

static u32 fimc_hw_get_target_flip(u32 ctx_flip)
{
	u32 flip = S5P_CITRGFMT_FLIP_NORMAL;

	switch (ctx_flip) {
	case FLIP_X_AXIS:
		flip = S5P_CITRGFMT_FLIP_X_MIRROR;
		break;
	case FLIP_Y_AXIS:
		flip = S5P_CITRGFMT_FLIP_Y_MIRROR;
		break;
	case FLIP_XY_AXIS:
		flip = S5P_CITRGFMT_FLIP_180;
		break;
	case FLIP_NONE:
		break;

	}
	return flip;
}

void fimc_hw_set_target_format(struct fimc_ctx *ctx)
{
	u32 cfg;
	struct fimc_dev *dev = ctx->fimc_dev;
	struct fimc_frame *frame = &ctx->d_frame;

	dbg("w= %d, h= %d color: %d", frame->width,
		frame->height, frame->fmt->color);

	cfg = readl(dev->regs + S5P_CITRGFMT);
	cfg &= ~(S5P_CITRGFMT_FMT_MASK | S5P_CITRGFMT_HSIZE_MASK |
		  S5P_CITRGFMT_VSIZE_MASK);

	switch (frame->fmt->color) {
	case S5P_FIMC_RGB565:
	case S5P_FIMC_RGB666:
	case S5P_FIMC_RGB888:
		cfg |= S5P_CITRGFMT_RGB;
		break;
	case S5P_FIMC_YCBCR420:
		cfg |= S5P_CITRGFMT_YCBCR420;
		break;
	case S5P_FIMC_YCBYCR422:
	case S5P_FIMC_YCRYCB422:
	case S5P_FIMC_CBYCRY422:
	case S5P_FIMC_CRYCBY422:
		if (frame->fmt->planes_cnt == 1)
			cfg |= S5P_CITRGFMT_YCBCR422_1P;
		else
			cfg |= S5P_CITRGFMT_YCBCR422;
		break;
	default:
		break;
	}

	cfg |= S5P_CITRGFMT_HSIZE(frame->width);
	cfg |= S5P_CITRGFMT_VSIZE(frame->height);

	if (ctx->rotation == 0) {
		cfg &= ~S5P_CITRGFMT_FLIP_MASK;
		cfg |= fimc_hw_get_target_flip(ctx->flip);
	}
	writel(cfg, dev->regs + S5P_CITRGFMT);

	cfg = readl(dev->regs + S5P_CITAREA) & ~S5P_CITAREA_MASK;
	cfg |= (frame->width * frame->height);
	writel(cfg, dev->regs + S5P_CITAREA);
}

static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx)
{
	struct fimc_dev *dev = ctx->fimc_dev;
	struct fimc_frame *frame = &ctx->d_frame;
	u32 cfg = 0;

	if (ctx->rotation == 90 || ctx->rotation == 270) {
		cfg |= S5P_ORIG_SIZE_HOR(frame->f_height);
		cfg |= S5P_ORIG_SIZE_VER(frame->f_width);
	} else {
		cfg |= S5P_ORIG_SIZE_HOR(frame->f_width);
		cfg |= S5P_ORIG_SIZE_VER(frame->f_height);
	}
	writel(cfg, dev->regs + S5P_ORGOSIZE);
}

void fimc_hw_set_out_dma(struct fimc_ctx *ctx)
{
	u32 cfg;
	struct fimc_dev *dev = ctx->fimc_dev;
	struct fimc_frame *frame = &ctx->d_frame;
	struct fimc_dma_offset *offset = &frame->dma_offset;

	/* Set the input dma offsets. */
	cfg = 0;
	cfg |= S5P_CIO_OFFS_HOR(offset->y_h);
	cfg |= S5P_CIO_OFFS_VER(offset->y_v);
	writel(cfg, dev->regs + S5P_CIOYOFF);

	cfg = 0;
	cfg |= S5P_CIO_OFFS_HOR(offset->cb_h);
	cfg |= S5P_CIO_OFFS_VER(offset->cb_v);
	writel(cfg, dev->regs + S5P_CIOCBOFF);

	cfg = 0;
	cfg |= S5P_CIO_OFFS_HOR(offset->cr_h);
	cfg |= S5P_CIO_OFFS_VER(offset->cr_v);
	writel(cfg, dev->regs + S5P_CIOCROFF);

	fimc_hw_set_out_dma_size(ctx);

	/* Configure chroma components order. */
	cfg = readl(dev->regs + S5P_CIOCTRL);

	cfg &= ~(S5P_CIOCTRL_ORDER2P_MASK | S5P_CIOCTRL_ORDER422_MASK |
		 S5P_CIOCTRL_YCBCR_PLANE_MASK);

	if (frame->fmt->planes_cnt == 1)
		cfg |= ctx->out_order_1p;
	else if (frame->fmt->planes_cnt == 2)
		cfg |= ctx->out_order_2p | S5P_CIOCTRL_YCBCR_2PLANE;
	else if (frame->fmt->planes_cnt == 3)
		cfg |= S5P_CIOCTRL_YCBCR_3PLANE;

	writel(cfg, dev->regs + S5P_CIOCTRL);
}

static void fimc_hw_en_autoload(struct fimc_dev *dev, int enable)
{
	u32 cfg = readl(dev->regs + S5P_ORGISIZE);
	if (enable)
		cfg |= S5P_CIREAL_ISIZE_AUTOLOAD_EN;
	else
		cfg &= ~S5P_CIREAL_ISIZE_AUTOLOAD_EN;
	writel(cfg, dev->regs + S5P_ORGISIZE);
}

void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable)
{
	unsigned long flags;
	u32 cfg;

	spin_lock_irqsave(&dev->slock, flags);

	cfg = readl(dev->regs + S5P_CIOCTRL);
	if (enable)
		cfg |= S5P_CIOCTRL_LASTIRQ_ENABLE;
	else
		cfg &= ~S5P_CIOCTRL_LASTIRQ_ENABLE;
	writel(cfg, dev->regs + S5P_CIOCTRL);

	spin_unlock_irqrestore(&dev->slock, flags);
}

static void fimc_hw_set_prescaler(struct fimc_ctx *ctx)
{
	struct fimc_dev *dev =  ctx->fimc_dev;
	struct fimc_scaler *sc = &ctx->scaler;
	u32 cfg, shfactor;

	shfactor = 10 - (sc->hfactor + sc->vfactor);

	cfg = S5P_CISCPRERATIO_SHFACTOR(shfactor);
	cfg |= S5P_CISCPRERATIO_HOR(sc->pre_hratio);
	cfg |= S5P_CISCPRERATIO_VER(sc->pre_vratio);
	writel(cfg, dev->regs + S5P_CISCPRERATIO);

	cfg = S5P_CISCPREDST_WIDTH(sc->pre_dst_width);
	cfg |= S5P_CISCPREDST_HEIGHT(sc->pre_dst_height);
	writel(cfg, dev->regs + S5P_CISCPREDST);
}

void fimc_hw_set_scaler(struct fimc_ctx *ctx)
{
	struct fimc_dev *dev = ctx->fimc_dev;
	struct fimc_scaler *sc = &ctx->scaler;
	struct fimc_frame *src_frame = &ctx->s_frame;
	struct fimc_frame *dst_frame = &ctx->d_frame;
	u32 cfg = 0;

	fimc_hw_set_prescaler(ctx);

	if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW))
		cfg |= (S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE);

	if (!sc->enabled)
		cfg |= S5P_CISCCTRL_SCALERBYPASS;

	if (sc->scaleup_h)
		cfg |= S5P_CISCCTRL_SCALEUP_H;

	if (sc->scaleup_v)
		cfg |= S5P_CISCCTRL_SCALEUP_V;

	if (sc->copy_mode)
		cfg |= S5P_CISCCTRL_ONE2ONE;


	if (ctx->in_path == FIMC_DMA) {
		if (src_frame->fmt->color == S5P_FIMC_RGB565)
			cfg |= S5P_CISCCTRL_INRGB_FMT_RGB565;
		else if (src_frame->fmt->color == S5P_FIMC_RGB666)
			cfg |= S5P_CISCCTRL_INRGB_FMT_RGB666;
		else if (src_frame->fmt->color == S5P_FIMC_RGB888)
			cfg |= S5P_CISCCTRL_INRGB_FMT_RGB888;
	}

	if (ctx->out_path == FIMC_DMA) {
		if (dst_frame->fmt->color == S5P_FIMC_RGB565)
			cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB565;
		else if (dst_frame->fmt->color == S5P_FIMC_RGB666)
			cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB666;
		else if (dst_frame->fmt->color == S5P_FIMC_RGB888)
			cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB888;
	} else {
		cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB888;

		if (ctx->flags & FIMC_SCAN_MODE_INTERLACED)
			cfg |= S5P_CISCCTRL_INTERLACE;
	}

	dbg("main_hratio= 0x%X  main_vratio= 0x%X",
		sc->main_hratio, sc->main_vratio);

	cfg |= S5P_CISCCTRL_SC_HORRATIO(sc->main_hratio);
	cfg |= S5P_CISCCTRL_SC_VERRATIO(sc->main_vratio);

	writel(cfg, dev->regs + S5P_CISCCTRL);
}

void fimc_hw_en_capture(struct fimc_ctx *ctx)
{
	struct fimc_dev *dev = ctx->fimc_dev;
	u32 cfg;

	cfg = readl(dev->regs + S5P_CIIMGCPT);
	/* One shot mode for output DMA or freerun for FIFO. */
	if (ctx->out_path == FIMC_DMA)
		cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE;
	else
		cfg &= ~S5P_CIIMGCPT_CPT_FREN_ENABLE;

	if (ctx->scaler.enabled)
		cfg |= S5P_CIIMGCPT_IMGCPTEN_SC;

	writel(cfg | S5P_CIIMGCPT_IMGCPTEN, dev->regs + S5P_CIIMGCPT);
}

void fimc_hw_set_effect(struct fimc_ctx *ctx)
{
	struct fimc_dev *dev = ctx->fimc_dev;
	struct fimc_effect *effect = &ctx->effect;
	u32 cfg = (S5P_CIIMGEFF_IE_ENABLE | S5P_CIIMGEFF_IE_SC_AFTER);

	cfg |= effect->type;

	if (effect->type == S5P_FIMC_EFFECT_ARBITRARY) {
		cfg |= S5P_CIIMGEFF_PAT_CB(effect->pat_cb);
		cfg |= S5P_CIIMGEFF_PAT_CR(effect->pat_cr);
	}

	writel(cfg, dev->regs + S5P_CIIMGEFF);
}

static void fimc_hw_set_in_dma_size(struct fimc_ctx *ctx)
{
	struct fimc_dev *dev = ctx->fimc_dev;
	struct fimc_frame *frame = &ctx->s_frame;
	u32 cfg_o = 0;
	u32 cfg_r = 0;

	if (FIMC_LCDFIFO == ctx->out_path)
		cfg_r |= S5P_CIREAL_ISIZE_AUTOLOAD_EN;

	cfg_o |= S5P_ORIG_SIZE_HOR(frame->f_width);
	cfg_o |= S5P_ORIG_SIZE_VER(frame->f_height);
	cfg_r |= S5P_CIREAL_ISIZE_WIDTH(frame->width);
	cfg_r |= S5P_CIREAL_ISIZE_HEIGHT(frame->height);

	writel(cfg_o, dev->regs + S5P_ORGISIZE);
	writel(cfg_r, dev->regs + S5P_CIREAL_ISIZE);
}

void fimc_hw_set_in_dma(struct fimc_ctx *ctx)
{
	struct fimc_dev *dev = ctx->fimc_dev;
	struct fimc_frame *frame = &ctx->s_frame;
	struct fimc_dma_offset *offset = &frame->dma_offset;
	u32 cfg;

	/* Set the pixel offsets. */
	cfg = S5P_CIO_OFFS_HOR(offset->y_h);
	cfg |= S5P_CIO_OFFS_VER(offset->y_v);
	writel(cfg, dev->regs + S5P_CIIYOFF);

	cfg = S5P_CIO_OFFS_HOR(offset->cb_h);
	cfg |= S5P_CIO_OFFS_VER(offset->cb_v);
	writel(cfg, dev->regs + S5P_CIICBOFF);

	cfg = S5P_CIO_OFFS_HOR(offset->cr_h);
	cfg |= S5P_CIO_OFFS_VER(offset->cr_v);
	writel(cfg, dev->regs + S5P_CIICROFF);

	/* Input original and real size. */
	fimc_hw_set_in_dma_size(ctx);

	/* Use DMA autoload only in FIFO mode. */
	fimc_hw_en_autoload(dev, ctx->out_path == FIMC_LCDFIFO);

	/* Set the input DMA to process single frame only. */
	cfg = readl(dev->regs + S5P_MSCTRL);
	cfg &= ~(S5P_MSCTRL_FLIP_MASK
		| S5P_MSCTRL_INFORMAT_MASK
		| S5P_MSCTRL_IN_BURST_COUNT_MASK
		| S5P_MSCTRL_INPUT_MASK
		| S5P_MSCTRL_C_INT_IN_MASK
		| S5P_MSCTRL_2P_IN_ORDER_MASK);

	cfg |= (S5P_MSCTRL_FRAME_COUNT(1) | S5P_MSCTRL_INPUT_MEMORY);

	switch (frame->fmt->color) {
	case S5P_FIMC_RGB565:
	case S5P_FIMC_RGB666:
	case S5P_FIMC_RGB888:
		cfg |= S5P_MSCTRL_INFORMAT_RGB;
		break;
	case S5P_FIMC_YCBCR420:
		cfg |= S5P_MSCTRL_INFORMAT_YCBCR420;

		if (frame->fmt->planes_cnt == 2)
			cfg |= ctx->in_order_2p | S5P_MSCTRL_C_INT_IN_2PLANE;
		else
			cfg |= S5P_MSCTRL_C_INT_IN_3PLANE;

		break;
	case S5P_FIMC_YCBYCR422:
	case S5P_FIMC_YCRYCB422:
	case S5P_FIMC_CBYCRY422:
	case S5P_FIMC_CRYCBY422:
		if (frame->fmt->planes_cnt == 1) {
			cfg |= ctx->in_order_1p
				| S5P_MSCTRL_INFORMAT_YCBCR422_1P;
		} else {
			cfg |= S5P_MSCTRL_INFORMAT_YCBCR422;

			if (frame->fmt->planes_cnt == 2)
				cfg |= ctx->in_order_2p
					| S5P_MSCTRL_C_INT_IN_2PLANE;
			else
				cfg |= S5P_MSCTRL_C_INT_IN_3PLANE;
		}
		break;
	default:
		break;
	}

	/*
	 * Input DMA flip mode (and rotation).
	 * Do not allow simultaneous rotation and flipping.
	 */
	if (!ctx->rotation && ctx->out_path == FIMC_LCDFIFO)
		cfg |= fimc_hw_get_in_flip(ctx->flip);

	writel(cfg, dev->regs + S5P_MSCTRL);

	/* Input/output DMA linear/tiled mode. */
	cfg = readl(dev->regs + S5P_CIDMAPARAM);
	cfg &= ~S5P_CIDMAPARAM_TILE_MASK;

	if (tiled_fmt(ctx->s_frame.fmt))
		cfg |= S5P_CIDMAPARAM_R_64X32;

	if (tiled_fmt(ctx->d_frame.fmt))
		cfg |= S5P_CIDMAPARAM_W_64X32;

	writel(cfg, dev->regs + S5P_CIDMAPARAM);
}


void fimc_hw_set_input_path(struct fimc_ctx *ctx)
{
	struct fimc_dev *dev = ctx->fimc_dev;

	u32 cfg = readl(dev->regs + S5P_MSCTRL);
	cfg &= ~S5P_MSCTRL_INPUT_MASK;

	if (ctx->in_path == FIMC_DMA)
		cfg |= S5P_MSCTRL_INPUT_MEMORY;
	else
		cfg |= S5P_MSCTRL_INPUT_EXTCAM;

	writel(cfg, dev->regs + S5P_MSCTRL);
}

void fimc_hw_set_output_path(struct fimc_ctx *ctx)
{
	struct fimc_dev *dev = ctx->fimc_dev;

	u32 cfg = readl(dev->regs + S5P_CISCCTRL);
	cfg &= ~S5P_CISCCTRL_LCDPATHEN_FIFO;
	if (ctx->out_path == FIMC_LCDFIFO)
		cfg |= S5P_CISCCTRL_LCDPATHEN_FIFO;
	writel(cfg, dev->regs + S5P_CISCCTRL);
}

void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
{
	u32 cfg = readl(dev->regs + S5P_CIREAL_ISIZE);
	cfg |= S5P_CIREAL_ISIZE_ADDR_CH_DIS;
	writel(cfg, dev->regs + S5P_CIREAL_ISIZE);

	writel(paddr->y, dev->regs + S5P_CIIYSA(0));
	writel(paddr->cb, dev->regs + S5P_CIICBSA(0));
	writel(paddr->cr, dev->regs + S5P_CIICRSA(0));

	cfg &= ~S5P_CIREAL_ISIZE_ADDR_CH_DIS;
	writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
}

void fimc_hw_set_output_addr(struct fimc_dev *dev,
			     struct fimc_addr *paddr, int index)
{
	int i = (index == -1) ? 0 : index;
	do {
		writel(paddr->y, dev->regs + S5P_CIOYSA(i));
		writel(paddr->cb, dev->regs + S5P_CIOCBSA(i));
		writel(paddr->cr, dev->regs + S5P_CIOCRSA(i));
		dbg("dst_buf[%d]: 0x%X, cb: 0x%X, cr: 0x%X",
		    i, paddr->y, paddr->cb, paddr->cr);
	} while (index == -1 && ++i < FIMC_MAX_OUT_BUFS);
}
Commit	Line	Data
5fd8f738 SN	1	/*
	2	* Register interface file for Samsung Camera Interface (FIMC) driver
	3	*
	4	* Copyright (c) 2010 Samsung Electronics
	5	*
	6	* Sylwester Nawrocki, s.nawrocki@samsung.com
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
	13	#include <linux/io.h>
	14	#include <linux/delay.h>
	15	#include <mach/map.h>
	16
	17	#include "fimc-core.h"
	18
	19
	20	void fimc_hw_reset(struct fimc_dev *dev)
	21	{
	22	u32 cfg;
	23
	24	cfg = readl(dev->regs + S5P_CISRCFMT);
	25	cfg \|= S5P_CISRCFMT_ITU601_8BIT;
	26	writel(cfg, dev->regs + S5P_CISRCFMT);
	27
	28	/* Software reset. */
	29	cfg = readl(dev->regs + S5P_CIGCTRL);
	30	cfg \|= (S5P_CIGCTRL_SWRST \| S5P_CIGCTRL_IRQ_LEVEL);
	31	writel(cfg, dev->regs + S5P_CIGCTRL);
548aafcd	32	udelay(1000);
5fd8f738 SN	33
	34	cfg = readl(dev->regs + S5P_CIGCTRL);
	35	cfg &= ~S5P_CIGCTRL_SWRST;
	36	writel(cfg, dev->regs + S5P_CIGCTRL);
	37
	38	}
	39
	40	void fimc_hw_set_rotation(struct fimc_ctx *ctx)
	41	{
	42	u32 cfg, flip;
	43	struct fimc_dev *dev = ctx->fimc_dev;
	44
	45	cfg = readl(dev->regs + S5P_CITRGFMT);
	46	cfg &= ~(S5P_CITRGFMT_INROT90 \| S5P_CITRGFMT_OUTROT90);
	47
	48	flip = readl(dev->regs + S5P_MSCTRL);
	49	flip &= ~S5P_MSCTRL_FLIP_MASK;
	50
	51	/*
	52	* The input and output rotator cannot work simultaneously.
	53	* Use the output rotator in output DMA mode or the input rotator
	54	* in direct fifo output mode.
	55	*/
	56	if (ctx->rotation == 90 \|\| ctx->rotation == 270) {
	57	if (ctx->out_path == FIMC_LCDFIFO) {
	58	cfg \|= S5P_CITRGFMT_INROT90;
	59	if (ctx->rotation == 270)
	60	flip \|= S5P_MSCTRL_FLIP_180;
	61	} else {
	62	cfg \|= S5P_CITRGFMT_OUTROT90;
	63	if (ctx->rotation == 270)
	64	cfg \|= S5P_CITRGFMT_FLIP_180;
	65	}
	66	} else if (ctx->rotation == 180) {
	67	if (ctx->out_path == FIMC_LCDFIFO)
	68	flip \|= S5P_MSCTRL_FLIP_180;
	69	else
	70	cfg \|= S5P_CITRGFMT_FLIP_180;
	71	}
	72	if (ctx->rotation == 180 \|\| ctx->rotation == 270)
	73	writel(flip, dev->regs + S5P_MSCTRL);
	74	writel(cfg, dev->regs + S5P_CITRGFMT);
	75	}
	76
	77	static u32 fimc_hw_get_in_flip(u32 ctx_flip)
	78	{
	79	u32 flip = S5P_MSCTRL_FLIP_NORMAL;
	80
	81	switch (ctx_flip) {
	82	case FLIP_X_AXIS:
	83	flip = S5P_MSCTRL_FLIP_X_MIRROR;
	84	break;
	85	case FLIP_Y_AXIS:
	86	flip = S5P_MSCTRL_FLIP_Y_MIRROR;
	87	break;
	88	case FLIP_XY_AXIS:
	89	flip = S5P_MSCTRL_FLIP_180;
	90	break;
	91	}
	92
	93	return flip;
	94	}
	95
	96	static u32 fimc_hw_get_target_flip(u32 ctx_flip)
97	{
98	u32 flip = S5P_CITRGFMT_FLIP_NORMAL;
99
100	switch (ctx_flip) {
101	case FLIP_X_AXIS:
102	flip = S5P_CITRGFMT_FLIP_X_MIRROR;
103	break;
104	case FLIP_Y_AXIS:
105	flip = S5P_CITRGFMT_FLIP_Y_MIRROR;
106	break;
107	case FLIP_XY_AXIS:
108	flip = S5P_CITRGFMT_FLIP_180;
109	break;
110	case FLIP_NONE:
111	break;
112
113	}
114	return flip;
115	}
116
117	void fimc_hw_set_target_format(struct fimc_ctx *ctx)
118	{
119	u32 cfg;
120	struct fimc_dev *dev = ctx->fimc_dev;
121	struct fimc_frame *frame = &ctx->d_frame;
122
123	dbg("w= %d, h= %d color: %d", frame->width,
124	frame->height, frame->fmt->color);
125
126	cfg = readl(dev->regs + S5P_CITRGFMT);
127	cfg &= ~(S5P_CITRGFMT_FMT_MASK \| S5P_CITRGFMT_HSIZE_MASK \|
128	S5P_CITRGFMT_VSIZE_MASK);
129
130	switch (frame->fmt->color) {
131	case S5P_FIMC_RGB565:
132	case S5P_FIMC_RGB666:
133	case S5P_FIMC_RGB888:
134	cfg \|= S5P_CITRGFMT_RGB;
135	break;
136	case S5P_FIMC_YCBCR420:
137	cfg \|= S5P_CITRGFMT_YCBCR420;
138	break;
139	case S5P_FIMC_YCBYCR422:
140	case S5P_FIMC_YCRYCB422:
141	case S5P_FIMC_CBYCRY422:
142	case S5P_FIMC_CRYCBY422:
143	if (frame->fmt->planes_cnt == 1)
144	cfg \|= S5P_CITRGFMT_YCBCR422_1P;
145	else
146	cfg \|= S5P_CITRGFMT_YCBCR422;
147	break;
148	default:
149	break;
150	}
151
152	cfg \|= S5P_CITRGFMT_HSIZE(frame->width);
153	cfg \|= S5P_CITRGFMT_VSIZE(frame->height);
154
155	if (ctx->rotation == 0) {
156	cfg &= ~S5P_CITRGFMT_FLIP_MASK;
157	cfg \|= fimc_hw_get_target_flip(ctx->flip);
158	}
159	writel(cfg, dev->regs + S5P_CITRGFMT);
160
161	cfg = readl(dev->regs + S5P_CITAREA) & ~S5P_CITAREA_MASK;
162	cfg \|= (frame->width * frame->height);
163	writel(cfg, dev->regs + S5P_CITAREA);
164	}
165
166	static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx)
167	{
168	struct fimc_dev *dev = ctx->fimc_dev;
169	struct fimc_frame *frame = &ctx->d_frame;
170	u32 cfg = 0;
171
172	if (ctx->rotation == 90 \|\| ctx->rotation == 270) {
173	cfg \|= S5P_ORIG_SIZE_HOR(frame->f_height);
174	cfg \|= S5P_ORIG_SIZE_VER(frame->f_width);
175	} else {
176	cfg \|= S5P_ORIG_SIZE_HOR(frame->f_width);
177	cfg \|= S5P_ORIG_SIZE_VER(frame->f_height);
178	}
179	writel(cfg, dev->regs + S5P_ORGOSIZE);
180	}
181
182	void fimc_hw_set_out_dma(struct fimc_ctx *ctx)
183	{
184	u32 cfg;
185	struct fimc_dev *dev = ctx->fimc_dev;
186	struct fimc_frame *frame = &ctx->d_frame;
187	struct fimc_dma_offset *offset = &frame->dma_offset;
188
189	/* Set the input dma offsets. */
190	cfg = 0;
191	cfg \|= S5P_CIO_OFFS_HOR(offset->y_h);
192	cfg \|= S5P_CIO_OFFS_VER(offset->y_v);
193	writel(cfg, dev->regs + S5P_CIOYOFF);
194
195	cfg = 0;
196	cfg \|= S5P_CIO_OFFS_HOR(offset->cb_h);
197	cfg \|= S5P_CIO_OFFS_VER(offset->cb_v);
198	writel(cfg, dev->regs + S5P_CIOCBOFF);
199
200	cfg = 0;
201	cfg \|= S5P_CIO_OFFS_HOR(offset->cr_h);
202	cfg \|= S5P_CIO_OFFS_VER(offset->cr_v);
203	writel(cfg, dev->regs + S5P_CIOCROFF);
204
205	fimc_hw_set_out_dma_size(ctx);
206
207	/* Configure chroma components order. */
208	cfg = readl(dev->regs + S5P_CIOCTRL);
209
210	cfg &= ~(S5P_CIOCTRL_ORDER2P_MASK \| S5P_CIOCTRL_ORDER422_MASK \|
211	S5P_CIOCTRL_YCBCR_PLANE_MASK);
212
213	if (frame->fmt->planes_cnt == 1)
214	cfg \|= ctx->out_order_1p;
215	else if (frame->fmt->planes_cnt == 2)
216	cfg \|= ctx->out_order_2p \| S5P_CIOCTRL_YCBCR_2PLANE;
217	else if (frame->fmt->planes_cnt == 3)
218	cfg \|= S5P_CIOCTRL_YCBCR_3PLANE;
219
220	writel(cfg, dev->regs + S5P_CIOCTRL);
221	}
222
223	static void fimc_hw_en_autoload(struct fimc_dev *dev, int enable)
224	{
225	u32 cfg = readl(dev->regs + S5P_ORGISIZE);
226	if (enable)
227	cfg \|= S5P_CIREAL_ISIZE_AUTOLOAD_EN;
228	else
229	cfg &= ~S5P_CIREAL_ISIZE_AUTOLOAD_EN;
230	writel(cfg, dev->regs + S5P_ORGISIZE);
231	}
232
233	void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable)
234	{
235	unsigned long flags;
236	u32 cfg;
237
238	spin_lock_irqsave(&dev->slock, flags);
239
240	cfg = readl(dev->regs + S5P_CIOCTRL);
241	if (enable)
242	cfg \|= S5P_CIOCTRL_LASTIRQ_ENABLE;
243	else
244	cfg &= ~S5P_CIOCTRL_LASTIRQ_ENABLE;
245	writel(cfg, dev->regs + S5P_CIOCTRL);
246
247	spin_unlock_irqrestore(&dev->slock, flags);
248	}
249
548aafcd	250	static void fimc_hw_set_prescaler(struct fimc_ctx *ctx)
5fd8f738 SN	251	{
	252	struct fimc_dev *dev = ctx->fimc_dev;
	253	struct fimc_scaler *sc = &ctx->scaler;
548aafcd	254	u32 cfg, shfactor;
5fd8f738 SN	255
	256	shfactor = 10 - (sc->hfactor + sc->vfactor);
	257
548aafcd	258	cfg = S5P_CISCPRERATIO_SHFACTOR(shfactor);
5fd8f738 SN	259	cfg \|= S5P_CISCPRERATIO_HOR(sc->pre_hratio);
	260	cfg \|= S5P_CISCPRERATIO_VER(sc->pre_vratio);
	261	writel(cfg, dev->regs + S5P_CISCPRERATIO);
	262
548aafcd	263	cfg = S5P_CISCPREDST_WIDTH(sc->pre_dst_width);
5fd8f738 SN	264	cfg \|= S5P_CISCPREDST_HEIGHT(sc->pre_dst_height);
	265	writel(cfg, dev->regs + S5P_CISCPREDST);
	266	}
	267
	268	void fimc_hw_set_scaler(struct fimc_ctx *ctx)
	269	{
	270	struct fimc_dev *dev = ctx->fimc_dev;
	271	struct fimc_scaler *sc = &ctx->scaler;
	272	struct fimc_frame *src_frame = &ctx->s_frame;
	273	struct fimc_frame *dst_frame = &ctx->d_frame;
	274	u32 cfg = 0;
	275
548aafcd SN	276	fimc_hw_set_prescaler(ctx);
548aafcd SN	277
5fd8f738 SN	278	if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW))
	279	cfg \|= (S5P_CISCCTRL_CSCR2Y_WIDE \| S5P_CISCCTRL_CSCY2R_WIDE);
	280
	281	if (!sc->enabled)
	282	cfg \|= S5P_CISCCTRL_SCALERBYPASS;
	283
	284	if (sc->scaleup_h)
	285	cfg \|= S5P_CISCCTRL_SCALEUP_H;
	286
	287	if (sc->scaleup_v)
	288	cfg \|= S5P_CISCCTRL_SCALEUP_V;
	289
	290	if (sc->copy_mode)
	291	cfg \|= S5P_CISCCTRL_ONE2ONE;
	292
	293
	294	if (ctx->in_path == FIMC_DMA) {
	295	if (src_frame->fmt->color == S5P_FIMC_RGB565)
	296	cfg \|= S5P_CISCCTRL_INRGB_FMT_RGB565;
	297	else if (src_frame->fmt->color == S5P_FIMC_RGB666)
	298	cfg \|= S5P_CISCCTRL_INRGB_FMT_RGB666;
	299	else if (src_frame->fmt->color == S5P_FIMC_RGB888)
	300	cfg \|= S5P_CISCCTRL_INRGB_FMT_RGB888;
	301	}
	302
	303	if (ctx->out_path == FIMC_DMA) {
	304	if (dst_frame->fmt->color == S5P_FIMC_RGB565)
	305	cfg \|= S5P_CISCCTRL_OUTRGB_FMT_RGB565;
	306	else if (dst_frame->fmt->color == S5P_FIMC_RGB666)
	307	cfg \|= S5P_CISCCTRL_OUTRGB_FMT_RGB666;
	308	else if (dst_frame->fmt->color == S5P_FIMC_RGB888)
	309	cfg \|= S5P_CISCCTRL_OUTRGB_FMT_RGB888;
	310	} else {
	311	cfg \|= S5P_CISCCTRL_OUTRGB_FMT_RGB888;
	312
	313	if (ctx->flags & FIMC_SCAN_MODE_INTERLACED)
	314	cfg \|= S5P_CISCCTRL_INTERLACE;
	315	}
	316
	317	dbg("main_hratio= 0x%X main_vratio= 0x%X",
	318	sc->main_hratio, sc->main_vratio);
	319
	320	cfg \|= S5P_CISCCTRL_SC_HORRATIO(sc->main_hratio);
	321	cfg \|= S5P_CISCCTRL_SC_VERRATIO(sc->main_vratio);
	322
	323	writel(cfg, dev->regs + S5P_CISCCTRL);
	324	}
	325
	326	void fimc_hw_en_capture(struct fimc_ctx *ctx)
	327	{
	328	struct fimc_dev *dev = ctx->fimc_dev;
	329	u32 cfg;
	330
	331	cfg = readl(dev->regs + S5P_CIIMGCPT);
	332	/* One shot mode for output DMA or freerun for FIFO. */
	333	if (ctx->out_path == FIMC_DMA)
	334	cfg \|= S5P_CIIMGCPT_CPT_FREN_ENABLE;
	335	else
	336	cfg &= ~S5P_CIIMGCPT_CPT_FREN_ENABLE;
	337
	338	if (ctx->scaler.enabled)
	339	cfg \|= S5P_CIIMGCPT_IMGCPTEN_SC;
	340
	341	writel(cfg \| S5P_CIIMGCPT_IMGCPTEN, dev->regs + S5P_CIIMGCPT);
342	}
343
344	void fimc_hw_set_effect(struct fimc_ctx *ctx)
345	{
346	struct fimc_dev *dev = ctx->fimc_dev;
347	struct fimc_effect *effect = &ctx->effect;
348	u32 cfg = (S5P_CIIMGEFF_IE_ENABLE \| S5P_CIIMGEFF_IE_SC_AFTER);
349
350	cfg \|= effect->type;
351
352	if (effect->type == S5P_FIMC_EFFECT_ARBITRARY) {
353	cfg \|= S5P_CIIMGEFF_PAT_CB(effect->pat_cb);
354	cfg \|= S5P_CIIMGEFF_PAT_CR(effect->pat_cr);
355	}
356
357	writel(cfg, dev->regs + S5P_CIIMGEFF);
358	}
359
360	static void fimc_hw_set_in_dma_size(struct fimc_ctx *ctx)
361	{
362	struct fimc_dev *dev = ctx->fimc_dev;
363	struct fimc_frame *frame = &ctx->s_frame;
364	u32 cfg_o = 0;
365	u32 cfg_r = 0;
366
367	if (FIMC_LCDFIFO == ctx->out_path)
548aafcd	368	cfg_r \|= S5P_CIREAL_ISIZE_AUTOLOAD_EN;
5fd8f738 SN	369
	370	cfg_o \|= S5P_ORIG_SIZE_HOR(frame->f_width);
	371	cfg_o \|= S5P_ORIG_SIZE_VER(frame->f_height);
	372	cfg_r \|= S5P_CIREAL_ISIZE_WIDTH(frame->width);
	373	cfg_r \|= S5P_CIREAL_ISIZE_HEIGHT(frame->height);
	374
	375	writel(cfg_o, dev->regs + S5P_ORGISIZE);
	376	writel(cfg_r, dev->regs + S5P_CIREAL_ISIZE);
	377	}
	378
	379	void fimc_hw_set_in_dma(struct fimc_ctx *ctx)
	380	{
	381	struct fimc_dev *dev = ctx->fimc_dev;
	382	struct fimc_frame *frame = &ctx->s_frame;
	383	struct fimc_dma_offset *offset = &frame->dma_offset;
548aafcd	384	u32 cfg;
5fd8f738 SN	385
5fd8f738 SN	386	/* Set the pixel offsets. */
548aafcd	387	cfg = S5P_CIO_OFFS_HOR(offset->y_h);
5fd8f738 SN	388	cfg \|= S5P_CIO_OFFS_VER(offset->y_v);
	389	writel(cfg, dev->regs + S5P_CIIYOFF);
	390
548aafcd	391	cfg = S5P_CIO_OFFS_HOR(offset->cb_h);
5fd8f738 SN	392	cfg \|= S5P_CIO_OFFS_VER(offset->cb_v);
	393	writel(cfg, dev->regs + S5P_CIICBOFF);
	394
548aafcd	395	cfg = S5P_CIO_OFFS_HOR(offset->cr_h);
5fd8f738 SN	396	cfg \|= S5P_CIO_OFFS_VER(offset->cr_v);
	397	writel(cfg, dev->regs + S5P_CIICROFF);
	398
	399	/* Input original and real size. */
	400	fimc_hw_set_in_dma_size(ctx);
	401
548aafcd	402	/* Use DMA autoload only in FIFO mode. */
5fd8f738 SN	403	fimc_hw_en_autoload(dev, ctx->out_path == FIMC_LCDFIFO);
	404
	405	/* Set the input DMA to process single frame only. */
	406	cfg = readl(dev->regs + S5P_MSCTRL);
	407	cfg &= ~(S5P_MSCTRL_FLIP_MASK
	408	\| S5P_MSCTRL_INFORMAT_MASK
	409	\| S5P_MSCTRL_IN_BURST_COUNT_MASK
	410	\| S5P_MSCTRL_INPUT_MASK
	411	\| S5P_MSCTRL_C_INT_IN_MASK
	412	\| S5P_MSCTRL_2P_IN_ORDER_MASK);
	413
	414	cfg \|= (S5P_MSCTRL_FRAME_COUNT(1) \| S5P_MSCTRL_INPUT_MEMORY);
	415
	416	switch (frame->fmt->color) {
	417	case S5P_FIMC_RGB565:
	418	case S5P_FIMC_RGB666:
	419	case S5P_FIMC_RGB888:
	420	cfg \|= S5P_MSCTRL_INFORMAT_RGB;
	421	break;
	422	case S5P_FIMC_YCBCR420:
	423	cfg \|= S5P_MSCTRL_INFORMAT_YCBCR420;
	424
	425	if (frame->fmt->planes_cnt == 2)
	426	cfg \|= ctx->in_order_2p \| S5P_MSCTRL_C_INT_IN_2PLANE;
	427	else
	428	cfg \|= S5P_MSCTRL_C_INT_IN_3PLANE;
	429
	430	break;
	431	case S5P_FIMC_YCBYCR422:
	432	case S5P_FIMC_YCRYCB422:
	433	case S5P_FIMC_CBYCRY422:
	434	case S5P_FIMC_CRYCBY422:
	435	if (frame->fmt->planes_cnt == 1) {
	436	cfg \|= ctx->in_order_1p
	437	\| S5P_MSCTRL_INFORMAT_YCBCR422_1P;
	438	} else {
	439	cfg \|= S5P_MSCTRL_INFORMAT_YCBCR422;
	440
	441	if (frame->fmt->planes_cnt == 2)
	442	cfg \|= ctx->in_order_2p
	443	\| S5P_MSCTRL_C_INT_IN_2PLANE;
	444	else
	445	cfg \|= S5P_MSCTRL_C_INT_IN_3PLANE;
	446	}
	447	break;
	448	default:
	449	break;
	450	}
	451
	452	/*
	453	* Input DMA flip mode (and rotation).
	454	* Do not allow simultaneous rotation and flipping.
	455	*/
	456	if (!ctx->rotation && ctx->out_path == FIMC_LCDFIFO)
	457	cfg \|= fimc_hw_get_in_flip(ctx->flip);
	458
	459	writel(cfg, dev->regs + S5P_MSCTRL);
	460
	461	/* Input/output DMA linear/tiled mode. */
	462	cfg = readl(dev->regs + S5P_CIDMAPARAM);
	463	cfg &= ~S5P_CIDMAPARAM_TILE_MASK;
	464
	465	if (tiled_fmt(ctx->s_frame.fmt))
	466	cfg \|= S5P_CIDMAPARAM_R_64X32;
467
468	if (tiled_fmt(ctx->d_frame.fmt))
469	cfg \|= S5P_CIDMAPARAM_W_64X32;
470
471	writel(cfg, dev->regs + S5P_CIDMAPARAM);
472	}
473
474
475	void fimc_hw_set_input_path(struct fimc_ctx *ctx)
476	{
477	struct fimc_dev *dev = ctx->fimc_dev;
478
479	u32 cfg = readl(dev->regs + S5P_MSCTRL);
480	cfg &= ~S5P_MSCTRL_INPUT_MASK;
481
482	if (ctx->in_path == FIMC_DMA)
483	cfg \|= S5P_MSCTRL_INPUT_MEMORY;
484	else
485	cfg \|= S5P_MSCTRL_INPUT_EXTCAM;
486
487	writel(cfg, dev->regs + S5P_MSCTRL);
488	}
489
490	void fimc_hw_set_output_path(struct fimc_ctx *ctx)
491	{
492	struct fimc_dev *dev = ctx->fimc_dev;
493
494	u32 cfg = readl(dev->regs + S5P_CISCCTRL);
495	cfg &= ~S5P_CISCCTRL_LCDPATHEN_FIFO;
496	if (ctx->out_path == FIMC_LCDFIFO)
497	cfg \|= S5P_CISCCTRL_LCDPATHEN_FIFO;
498	writel(cfg, dev->regs + S5P_CISCCTRL);
499	}
500
501	void fimc_hw_set_input_addr(struct fimc_dev dev, struct fimc_addr paddr)
502	{
548aafcd	503	u32 cfg = readl(dev->regs + S5P_CIREAL_ISIZE);
5fd8f738 SN	504	cfg \|= S5P_CIREAL_ISIZE_ADDR_CH_DIS;
	505	writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
	506
77e62082 SN	507	writel(paddr->y, dev->regs + S5P_CIIYSA(0));
	508	writel(paddr->cb, dev->regs + S5P_CIICBSA(0));
	509	writel(paddr->cr, dev->regs + S5P_CIICRSA(0));
5fd8f738 SN	510
	511	cfg &= ~S5P_CIREAL_ISIZE_ADDR_CH_DIS;
	512	writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
	513	}
	514
548aafcd SN	515	void fimc_hw_set_output_addr(struct fimc_dev *dev,
548aafcd SN	516	struct fimc_addr *paddr, int index)
5fd8f738	517	{
548aafcd SN	518	int i = (index == -1) ? 0 : index;
548aafcd SN	519	do {
5fd8f738 SN	520	writel(paddr->y, dev->regs + S5P_CIOYSA(i));
	521	writel(paddr->cb, dev->regs + S5P_CIOCBSA(i));
	522	writel(paddr->cr, dev->regs + S5P_CIOCRSA(i));
548aafcd SN	523	dbg("dst_buf[%d]: 0x%X, cb: 0x%X, cr: 0x%X",
	524	i, paddr->y, paddr->cb, paddr->cr);
	525	} while (index == -1 && ++i < FIMC_MAX_OUT_BUFS);
5fd8f738	526	}