linux/drivers/media/video/s5p-fimc/fimc-reg.c
Sylwester Nawrocki c83a1ff063 [media] s5p-fimc: Refactor the register interface functions
Simplify the register API and use FIMC_REG_ prefix for all register
definitions for consistency with FIMC-LITE. The unused image effect
defines are removed.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-05-20 09:19:32 -03:00

775 lines
21 KiB
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 <media/s5p_fimc.h>
#include "fimc-reg.h"
#include "fimc-core.h"
void fimc_hw_reset(struct fimc_dev *dev)
{
u32 cfg;
cfg = readl(dev->regs + FIMC_REG_CISRCFMT);
cfg |= FIMC_REG_CISRCFMT_ITU601_8BIT;
writel(cfg, dev->regs + FIMC_REG_CISRCFMT);
/* Software reset. */
cfg = readl(dev->regs + FIMC_REG_CIGCTRL);
cfg |= (FIMC_REG_CIGCTRL_SWRST | FIMC_REG_CIGCTRL_IRQ_LEVEL);
writel(cfg, dev->regs + FIMC_REG_CIGCTRL);
udelay(10);
cfg = readl(dev->regs + FIMC_REG_CIGCTRL);
cfg &= ~FIMC_REG_CIGCTRL_SWRST;
writel(cfg, dev->regs + FIMC_REG_CIGCTRL);
if (dev->variant->out_buf_count > 4)
fimc_hw_set_dma_seq(dev, 0xF);
}
static u32 fimc_hw_get_in_flip(struct fimc_ctx *ctx)
{
u32 flip = FIMC_REG_MSCTRL_FLIP_NORMAL;
if (ctx->hflip)
flip = FIMC_REG_MSCTRL_FLIP_X_MIRROR;
if (ctx->vflip)
flip = FIMC_REG_MSCTRL_FLIP_Y_MIRROR;
if (ctx->rotation <= 90)
return flip;
return (flip ^ FIMC_REG_MSCTRL_FLIP_180) & FIMC_REG_MSCTRL_FLIP_180;
}
static u32 fimc_hw_get_target_flip(struct fimc_ctx *ctx)
{
u32 flip = FIMC_REG_CITRGFMT_FLIP_NORMAL;
if (ctx->hflip)
flip |= FIMC_REG_CITRGFMT_FLIP_X_MIRROR;
if (ctx->vflip)
flip |= FIMC_REG_CITRGFMT_FLIP_Y_MIRROR;
if (ctx->rotation <= 90)
return flip;
return (flip ^ FIMC_REG_CITRGFMT_FLIP_180) & FIMC_REG_CITRGFMT_FLIP_180;
}
void fimc_hw_set_rotation(struct fimc_ctx *ctx)
{
u32 cfg, flip;
struct fimc_dev *dev = ctx->fimc_dev;
cfg = readl(dev->regs + FIMC_REG_CITRGFMT);
cfg &= ~(FIMC_REG_CITRGFMT_INROT90 | FIMC_REG_CITRGFMT_OUTROT90 |
FIMC_REG_CITRGFMT_FLIP_180);
/*
* 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 |= FIMC_REG_CITRGFMT_INROT90;
else
cfg |= FIMC_REG_CITRGFMT_OUTROT90;
}
if (ctx->out_path == FIMC_DMA) {
cfg |= fimc_hw_get_target_flip(ctx);
writel(cfg, dev->regs + FIMC_REG_CITRGFMT);
} else {
/* LCD FIFO path */
flip = readl(dev->regs + FIMC_REG_MSCTRL);
flip &= ~FIMC_REG_MSCTRL_FLIP_MASK;
flip |= fimc_hw_get_in_flip(ctx);
writel(flip, dev->regs + FIMC_REG_MSCTRL);
}
}
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 + FIMC_REG_CITRGFMT);
cfg &= ~(FIMC_REG_CITRGFMT_FMT_MASK | FIMC_REG_CITRGFMT_HSIZE_MASK |
FIMC_REG_CITRGFMT_VSIZE_MASK);
switch (frame->fmt->color) {
case S5P_FIMC_RGB444...S5P_FIMC_RGB888:
cfg |= FIMC_REG_CITRGFMT_RGB;
break;
case S5P_FIMC_YCBCR420:
cfg |= FIMC_REG_CITRGFMT_YCBCR420;
break;
case S5P_FIMC_YCBYCR422...S5P_FIMC_CRYCBY422:
if (frame->fmt->colplanes == 1)
cfg |= FIMC_REG_CITRGFMT_YCBCR422_1P;
else
cfg |= FIMC_REG_CITRGFMT_YCBCR422;
break;
default:
break;
}
if (ctx->rotation == 90 || ctx->rotation == 270)
cfg |= (frame->height << 16) | frame->width;
else
cfg |= (frame->width << 16) | frame->height;
writel(cfg, dev->regs + FIMC_REG_CITRGFMT);
cfg = readl(dev->regs + FIMC_REG_CITAREA);
cfg &= ~FIMC_REG_CITAREA_MASK;
cfg |= (frame->width * frame->height);
writel(cfg, dev->regs + FIMC_REG_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;
cfg = (frame->f_height << 16) | frame->f_width;
writel(cfg, dev->regs + FIMC_REG_ORGOSIZE);
/* Select color space conversion equation (HD/SD size).*/
cfg = readl(dev->regs + FIMC_REG_CIGCTRL);
if (frame->f_width >= 1280) /* HD */
cfg |= FIMC_REG_CIGCTRL_CSC_ITU601_709;
else /* SD */
cfg &= ~FIMC_REG_CIGCTRL_CSC_ITU601_709;
writel(cfg, dev->regs + FIMC_REG_CIGCTRL);
}
void fimc_hw_set_out_dma(struct fimc_ctx *ctx)
{
struct fimc_dev *dev = ctx->fimc_dev;
struct fimc_frame *frame = &ctx->d_frame;
struct fimc_dma_offset *offset = &frame->dma_offset;
struct fimc_fmt *fmt = frame->fmt;
u32 cfg;
/* Set the input dma offsets. */
cfg = (offset->y_v << 16) | offset->y_h;
writel(cfg, dev->regs + FIMC_REG_CIOYOFF);
cfg = (offset->cb_v << 16) | offset->cb_h;
writel(cfg, dev->regs + FIMC_REG_CIOCBOFF);
cfg = (offset->cr_v << 16) | offset->cr_h;
writel(cfg, dev->regs + FIMC_REG_CIOCROFF);
fimc_hw_set_out_dma_size(ctx);
/* Configure chroma components order. */
cfg = readl(dev->regs + FIMC_REG_CIOCTRL);
cfg &= ~(FIMC_REG_CIOCTRL_ORDER2P_MASK |
FIMC_REG_CIOCTRL_ORDER422_MASK |
FIMC_REG_CIOCTRL_YCBCR_PLANE_MASK |
FIMC_REG_CIOCTRL_RGB16FMT_MASK);
if (fmt->colplanes == 1)
cfg |= ctx->out_order_1p;
else if (fmt->colplanes == 2)
cfg |= ctx->out_order_2p | FIMC_REG_CIOCTRL_YCBCR_2PLANE;
else if (fmt->colplanes == 3)
cfg |= FIMC_REG_CIOCTRL_YCBCR_3PLANE;
if (fmt->color == S5P_FIMC_RGB565)
cfg |= FIMC_REG_CIOCTRL_RGB565;
else if (fmt->color == S5P_FIMC_RGB555)
cfg |= FIMC_REG_CIOCTRL_ARGB1555;
else if (fmt->color == S5P_FIMC_RGB444)
cfg |= FIMC_REG_CIOCTRL_ARGB4444;
writel(cfg, dev->regs + FIMC_REG_CIOCTRL);
}
static void fimc_hw_en_autoload(struct fimc_dev *dev, int enable)
{
u32 cfg = readl(dev->regs + FIMC_REG_ORGISIZE);
if (enable)
cfg |= FIMC_REG_CIREAL_ISIZE_AUTOLOAD_EN;
else
cfg &= ~FIMC_REG_CIREAL_ISIZE_AUTOLOAD_EN;
writel(cfg, dev->regs + FIMC_REG_ORGISIZE);
}
void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable)
{
u32 cfg = readl(dev->regs + FIMC_REG_CIOCTRL);
if (enable)
cfg |= FIMC_REG_CIOCTRL_LASTIRQ_ENABLE;
else
cfg &= ~FIMC_REG_CIOCTRL_LASTIRQ_ENABLE;
writel(cfg, dev->regs + FIMC_REG_CIOCTRL);
}
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 = shfactor << 28;
cfg |= (sc->pre_hratio << 16) | sc->pre_vratio;
writel(cfg, dev->regs + FIMC_REG_CISCPRERATIO);
cfg = (sc->pre_dst_width << 16) | sc->pre_dst_height;
writel(cfg, dev->regs + FIMC_REG_CISCPREDST);
}
static 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 = readl(dev->regs + FIMC_REG_CISCCTRL);
cfg &= ~(FIMC_REG_CISCCTRL_CSCR2Y_WIDE | FIMC_REG_CISCCTRL_CSCY2R_WIDE |
FIMC_REG_CISCCTRL_SCALEUP_H | FIMC_REG_CISCCTRL_SCALEUP_V |
FIMC_REG_CISCCTRL_SCALERBYPASS | FIMC_REG_CISCCTRL_ONE2ONE |
FIMC_REG_CISCCTRL_INRGB_FMT_MASK | FIMC_REG_CISCCTRL_OUTRGB_FMT_MASK |
FIMC_REG_CISCCTRL_INTERLACE | FIMC_REG_CISCCTRL_RGB_EXT);
if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW))
cfg |= (FIMC_REG_CISCCTRL_CSCR2Y_WIDE |
FIMC_REG_CISCCTRL_CSCY2R_WIDE);
if (!sc->enabled)
cfg |= FIMC_REG_CISCCTRL_SCALERBYPASS;
if (sc->scaleup_h)
cfg |= FIMC_REG_CISCCTRL_SCALEUP_H;
if (sc->scaleup_v)
cfg |= FIMC_REG_CISCCTRL_SCALEUP_V;
if (sc->copy_mode)
cfg |= FIMC_REG_CISCCTRL_ONE2ONE;
if (ctx->in_path == FIMC_DMA) {
switch (src_frame->fmt->color) {
case S5P_FIMC_RGB565:
cfg |= FIMC_REG_CISCCTRL_INRGB_FMT_RGB565;
break;
case S5P_FIMC_RGB666:
cfg |= FIMC_REG_CISCCTRL_INRGB_FMT_RGB666;
break;
case S5P_FIMC_RGB888:
cfg |= FIMC_REG_CISCCTRL_INRGB_FMT_RGB888;
break;
}
}
if (ctx->out_path == FIMC_DMA) {
u32 color = dst_frame->fmt->color;
if (color >= S5P_FIMC_RGB444 && color <= S5P_FIMC_RGB565)
cfg |= FIMC_REG_CISCCTRL_OUTRGB_FMT_RGB565;
else if (color == S5P_FIMC_RGB666)
cfg |= FIMC_REG_CISCCTRL_OUTRGB_FMT_RGB666;
else if (color == S5P_FIMC_RGB888)
cfg |= FIMC_REG_CISCCTRL_OUTRGB_FMT_RGB888;
} else {
cfg |= FIMC_REG_CISCCTRL_OUTRGB_FMT_RGB888;
if (ctx->flags & FIMC_SCAN_MODE_INTERLACED)
cfg |= FIMC_REG_CISCCTRL_INTERLACE;
}
writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
}
void fimc_hw_set_mainscaler(struct fimc_ctx *ctx)
{
struct fimc_dev *dev = ctx->fimc_dev;
struct samsung_fimc_variant *variant = dev->variant;
struct fimc_scaler *sc = &ctx->scaler;
u32 cfg;
dbg("main_hratio= 0x%X main_vratio= 0x%X",
sc->main_hratio, sc->main_vratio);
fimc_hw_set_scaler(ctx);
cfg = readl(dev->regs + FIMC_REG_CISCCTRL);
cfg &= ~(FIMC_REG_CISCCTRL_MHRATIO_MASK |
FIMC_REG_CISCCTRL_MVRATIO_MASK);
if (variant->has_mainscaler_ext) {
cfg |= FIMC_REG_CISCCTRL_MHRATIO_EXT(sc->main_hratio);
cfg |= FIMC_REG_CISCCTRL_MVRATIO_EXT(sc->main_vratio);
writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
cfg = readl(dev->regs + FIMC_REG_CIEXTEN);
cfg &= ~(FIMC_REG_CIEXTEN_MVRATIO_EXT_MASK |
FIMC_REG_CIEXTEN_MHRATIO_EXT_MASK);
cfg |= FIMC_REG_CIEXTEN_MHRATIO_EXT(sc->main_hratio);
cfg |= FIMC_REG_CIEXTEN_MVRATIO_EXT(sc->main_vratio);
writel(cfg, dev->regs + FIMC_REG_CIEXTEN);
} else {
cfg |= FIMC_REG_CISCCTRL_MHRATIO(sc->main_hratio);
cfg |= FIMC_REG_CISCCTRL_MVRATIO(sc->main_vratio);
writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
}
}
void fimc_hw_en_capture(struct fimc_ctx *ctx)
{
struct fimc_dev *dev = ctx->fimc_dev;
u32 cfg = readl(dev->regs + FIMC_REG_CIIMGCPT);
if (ctx->out_path == FIMC_DMA) {
/* one shot mode */
cfg |= FIMC_REG_CIIMGCPT_CPT_FREN_ENABLE |
FIMC_REG_CIIMGCPT_IMGCPTEN;
} else {
/* Continuous frame capture mode (freerun). */
cfg &= ~(FIMC_REG_CIIMGCPT_CPT_FREN_ENABLE |
FIMC_REG_CIIMGCPT_CPT_FRMOD_CNT);
cfg |= FIMC_REG_CIIMGCPT_IMGCPTEN;
}
if (ctx->scaler.enabled)
cfg |= FIMC_REG_CIIMGCPT_IMGCPTEN_SC;
cfg |= FIMC_REG_CIIMGCPT_IMGCPTEN;
writel(cfg, dev->regs + FIMC_REG_CIIMGCPT);
}
void fimc_hw_set_effect(struct fimc_ctx *ctx, bool active)
{
struct fimc_dev *dev = ctx->fimc_dev;
struct fimc_effect *effect = &ctx->effect;
u32 cfg = 0;
if (active) {
cfg |= FIMC_REG_CIIMGEFF_IE_SC_AFTER |
FIMC_REG_CIIMGEFF_IE_ENABLE;
cfg |= effect->type;
if (effect->type == FIMC_REG_CIIMGEFF_FIN_ARBITRARY)
cfg |= (effect->pat_cb << 13) | effect->pat_cr;
}
writel(cfg, dev->regs + FIMC_REG_CIIMGEFF);
}
void fimc_hw_set_rgb_alpha(struct fimc_ctx *ctx)
{
struct fimc_dev *dev = ctx->fimc_dev;
struct fimc_frame *frame = &ctx->d_frame;
u32 cfg;
if (!(frame->fmt->flags & FMT_HAS_ALPHA))
return;
cfg = readl(dev->regs + FIMC_REG_CIOCTRL);
cfg &= ~FIMC_REG_CIOCTRL_ALPHA_OUT_MASK;
cfg |= (frame->alpha << 4);
writel(cfg, dev->regs + FIMC_REG_CIOCTRL);
}
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 |= FIMC_REG_CIREAL_ISIZE_AUTOLOAD_EN;
cfg_o |= (frame->f_height << 16) | frame->f_width;
cfg_r |= (frame->height << 16) | frame->width;
writel(cfg_o, dev->regs + FIMC_REG_ORGISIZE);
writel(cfg_r, dev->regs + FIMC_REG_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 = (offset->y_v << 16) | offset->y_h;
writel(cfg, dev->regs + FIMC_REG_CIIYOFF);
cfg = (offset->cb_v << 16) | offset->cb_h;
writel(cfg, dev->regs + FIMC_REG_CIICBOFF);
cfg = (offset->cr_v << 16) | offset->cr_h;
writel(cfg, dev->regs + FIMC_REG_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 + FIMC_REG_MSCTRL);
cfg &= ~(FIMC_REG_MSCTRL_INFORMAT_MASK
| FIMC_REG_MSCTRL_IN_BURST_COUNT_MASK
| FIMC_REG_MSCTRL_INPUT_MASK
| FIMC_REG_MSCTRL_C_INT_IN_MASK
| FIMC_REG_MSCTRL_2P_IN_ORDER_MASK);
cfg |= (FIMC_REG_MSCTRL_IN_BURST_COUNT(4)
| FIMC_REG_MSCTRL_INPUT_MEMORY
| FIMC_REG_MSCTRL_FIFO_CTRL_FULL);
switch (frame->fmt->color) {
case S5P_FIMC_RGB565...S5P_FIMC_RGB888:
cfg |= FIMC_REG_MSCTRL_INFORMAT_RGB;
break;
case S5P_FIMC_YCBCR420:
cfg |= FIMC_REG_MSCTRL_INFORMAT_YCBCR420;
if (frame->fmt->colplanes == 2)
cfg |= ctx->in_order_2p | FIMC_REG_MSCTRL_C_INT_IN_2PLANE;
else
cfg |= FIMC_REG_MSCTRL_C_INT_IN_3PLANE;
break;
case S5P_FIMC_YCBYCR422...S5P_FIMC_CRYCBY422:
if (frame->fmt->colplanes == 1) {
cfg |= ctx->in_order_1p
| FIMC_REG_MSCTRL_INFORMAT_YCBCR422_1P;
} else {
cfg |= FIMC_REG_MSCTRL_INFORMAT_YCBCR422;
if (frame->fmt->colplanes == 2)
cfg |= ctx->in_order_2p
| FIMC_REG_MSCTRL_C_INT_IN_2PLANE;
else
cfg |= FIMC_REG_MSCTRL_C_INT_IN_3PLANE;
}
break;
default:
break;
}
writel(cfg, dev->regs + FIMC_REG_MSCTRL);
/* Input/output DMA linear/tiled mode. */
cfg = readl(dev->regs + FIMC_REG_CIDMAPARAM);
cfg &= ~FIMC_REG_CIDMAPARAM_TILE_MASK;
if (tiled_fmt(ctx->s_frame.fmt))
cfg |= FIMC_REG_CIDMAPARAM_R_64X32;
if (tiled_fmt(ctx->d_frame.fmt))
cfg |= FIMC_REG_CIDMAPARAM_W_64X32;
writel(cfg, dev->regs + FIMC_REG_CIDMAPARAM);
}
void fimc_hw_set_input_path(struct fimc_ctx *ctx)
{
struct fimc_dev *dev = ctx->fimc_dev;
u32 cfg = readl(dev->regs + FIMC_REG_MSCTRL);
cfg &= ~FIMC_REG_MSCTRL_INPUT_MASK;
if (ctx->in_path == FIMC_DMA)
cfg |= FIMC_REG_MSCTRL_INPUT_MEMORY;
else
cfg |= FIMC_REG_MSCTRL_INPUT_EXTCAM;
writel(cfg, dev->regs + FIMC_REG_MSCTRL);
}
void fimc_hw_set_output_path(struct fimc_ctx *ctx)
{
struct fimc_dev *dev = ctx->fimc_dev;
u32 cfg = readl(dev->regs + FIMC_REG_CISCCTRL);
cfg &= ~FIMC_REG_CISCCTRL_LCDPATHEN_FIFO;
if (ctx->out_path == FIMC_LCDFIFO)
cfg |= FIMC_REG_CISCCTRL_LCDPATHEN_FIFO;
writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
}
void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
{
u32 cfg = readl(dev->regs + FIMC_REG_CIREAL_ISIZE);
cfg |= FIMC_REG_CIREAL_ISIZE_ADDR_CH_DIS;
writel(cfg, dev->regs + FIMC_REG_CIREAL_ISIZE);
writel(paddr->y, dev->regs + FIMC_REG_CIIYSA(0));
writel(paddr->cb, dev->regs + FIMC_REG_CIICBSA(0));
writel(paddr->cr, dev->regs + FIMC_REG_CIICRSA(0));
cfg &= ~FIMC_REG_CIREAL_ISIZE_ADDR_CH_DIS;
writel(cfg, dev->regs + FIMC_REG_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 + FIMC_REG_CIOYSA(i));
writel(paddr->cb, dev->regs + FIMC_REG_CIOCBSA(i));
writel(paddr->cr, dev->regs + FIMC_REG_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);
}
int fimc_hw_set_camera_polarity(struct fimc_dev *fimc,
struct s5p_fimc_isp_info *cam)
{
u32 cfg = readl(fimc->regs + FIMC_REG_CIGCTRL);
cfg &= ~(FIMC_REG_CIGCTRL_INVPOLPCLK | FIMC_REG_CIGCTRL_INVPOLVSYNC |
FIMC_REG_CIGCTRL_INVPOLHREF | FIMC_REG_CIGCTRL_INVPOLHSYNC |
FIMC_REG_CIGCTRL_INVPOLFIELD);
if (cam->flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
cfg |= FIMC_REG_CIGCTRL_INVPOLPCLK;
if (cam->flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
cfg |= FIMC_REG_CIGCTRL_INVPOLVSYNC;
if (cam->flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
cfg |= FIMC_REG_CIGCTRL_INVPOLHREF;
if (cam->flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
cfg |= FIMC_REG_CIGCTRL_INVPOLHSYNC;
if (cam->flags & V4L2_MBUS_FIELD_EVEN_LOW)
cfg |= FIMC_REG_CIGCTRL_INVPOLFIELD;
writel(cfg, fimc->regs + FIMC_REG_CIGCTRL);
return 0;
}
struct mbus_pixfmt_desc {
u32 pixelcode;
u32 cisrcfmt;
u16 bus_width;
};
static const struct mbus_pixfmt_desc pix_desc[] = {
{ V4L2_MBUS_FMT_YUYV8_2X8, FIMC_REG_CISRCFMT_ORDER422_YCBYCR, 8 },
{ V4L2_MBUS_FMT_YVYU8_2X8, FIMC_REG_CISRCFMT_ORDER422_YCRYCB, 8 },
{ V4L2_MBUS_FMT_VYUY8_2X8, FIMC_REG_CISRCFMT_ORDER422_CRYCBY, 8 },
{ V4L2_MBUS_FMT_UYVY8_2X8, FIMC_REG_CISRCFMT_ORDER422_CBYCRY, 8 },
};
int fimc_hw_set_camera_source(struct fimc_dev *fimc,
struct s5p_fimc_isp_info *cam)
{
struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
u32 cfg = 0;
u32 bus_width;
int i;
if (cam->bus_type == FIMC_ITU_601 || cam->bus_type == FIMC_ITU_656) {
for (i = 0; i < ARRAY_SIZE(pix_desc); i++) {
if (fimc->vid_cap.mf.code == pix_desc[i].pixelcode) {
cfg = pix_desc[i].cisrcfmt;
bus_width = pix_desc[i].bus_width;
break;
}
}
if (i == ARRAY_SIZE(pix_desc)) {
v4l2_err(fimc->vid_cap.vfd,
"Camera color format not supported: %d\n",
fimc->vid_cap.mf.code);
return -EINVAL;
}
if (cam->bus_type == FIMC_ITU_601) {
if (bus_width == 8)
cfg |= FIMC_REG_CISRCFMT_ITU601_8BIT;
else if (bus_width == 16)
cfg |= FIMC_REG_CISRCFMT_ITU601_16BIT;
} /* else defaults to ITU-R BT.656 8-bit */
} else if (cam->bus_type == FIMC_MIPI_CSI2) {
if (fimc_fmt_is_jpeg(f->fmt->color))
cfg |= FIMC_REG_CISRCFMT_ITU601_8BIT;
}
cfg |= (f->o_width << 16) | f->o_height;
writel(cfg, fimc->regs + FIMC_REG_CISRCFMT);
return 0;
}
void fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f)
{
u32 hoff2, voff2;
u32 cfg = readl(fimc->regs + FIMC_REG_CIWDOFST);
cfg &= ~(FIMC_REG_CIWDOFST_HOROFF_MASK | FIMC_REG_CIWDOFST_VEROFF_MASK);
cfg |= FIMC_REG_CIWDOFST_OFF_EN |
(f->offs_h << 16) | f->offs_v;
writel(cfg, fimc->regs + FIMC_REG_CIWDOFST);
/* See CIWDOFSTn register description in the datasheet for details. */
hoff2 = f->o_width - f->width - f->offs_h;
voff2 = f->o_height - f->height - f->offs_v;
cfg = (hoff2 << 16) | voff2;
writel(cfg, fimc->regs + FIMC_REG_CIWDOFST2);
}
int fimc_hw_set_camera_type(struct fimc_dev *fimc,
struct s5p_fimc_isp_info *cam)
{
u32 cfg, tmp;
struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
u32 csis_data_alignment = 32;
cfg = readl(fimc->regs + FIMC_REG_CIGCTRL);
/* Select ITU B interface, disable Writeback path and test pattern. */
cfg &= ~(FIMC_REG_CIGCTRL_TESTPAT_MASK | FIMC_REG_CIGCTRL_SELCAM_ITU_A |
FIMC_REG_CIGCTRL_SELCAM_MIPI | FIMC_REG_CIGCTRL_CAMIF_SELWB |
FIMC_REG_CIGCTRL_SELCAM_MIPI_A | FIMC_REG_CIGCTRL_CAM_JPEG);
if (cam->bus_type == FIMC_MIPI_CSI2) {
cfg |= FIMC_REG_CIGCTRL_SELCAM_MIPI;
if (cam->mux_id == 0)
cfg |= FIMC_REG_CIGCTRL_SELCAM_MIPI_A;
/* TODO: add remaining supported formats. */
switch (vid_cap->mf.code) {
case V4L2_MBUS_FMT_VYUY8_2X8:
tmp = FIMC_REG_CSIIMGFMT_YCBCR422_8BIT;
break;
case V4L2_MBUS_FMT_JPEG_1X8:
tmp = FIMC_REG_CSIIMGFMT_USER(1);
cfg |= FIMC_REG_CIGCTRL_CAM_JPEG;
break;
default:
v4l2_err(fimc->vid_cap.vfd,
"Not supported camera pixel format: %d",
vid_cap->mf.code);
return -EINVAL;
}
tmp |= (csis_data_alignment == 32) << 8;
writel(tmp, fimc->regs + FIMC_REG_CSIIMGFMT);
} else if (cam->bus_type == FIMC_ITU_601 ||
cam->bus_type == FIMC_ITU_656) {
if (cam->mux_id == 0) /* ITU-A, ITU-B: 0, 1 */
cfg |= FIMC_REG_CIGCTRL_SELCAM_ITU_A;
} else if (cam->bus_type == FIMC_LCD_WB) {
cfg |= FIMC_REG_CIGCTRL_CAMIF_SELWB;
} else {
err("invalid camera bus type selected\n");
return -EINVAL;
}
writel(cfg, fimc->regs + FIMC_REG_CIGCTRL);
return 0;
}
void fimc_hw_clear_irq(struct fimc_dev *dev)
{
u32 cfg = readl(dev->regs + FIMC_REG_CIGCTRL);
cfg |= FIMC_REG_CIGCTRL_IRQ_CLR;
writel(cfg, dev->regs + FIMC_REG_CIGCTRL);
}
void fimc_hw_enable_scaler(struct fimc_dev *dev, bool on)
{
u32 cfg = readl(dev->regs + FIMC_REG_CISCCTRL);
if (on)
cfg |= FIMC_REG_CISCCTRL_SCALERSTART;
else
cfg &= ~FIMC_REG_CISCCTRL_SCALERSTART;
writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
}
void fimc_hw_activate_input_dma(struct fimc_dev *dev, bool on)
{
u32 cfg = readl(dev->regs + FIMC_REG_MSCTRL);
if (on)
cfg |= FIMC_REG_MSCTRL_ENVID;
else
cfg &= ~FIMC_REG_MSCTRL_ENVID;
writel(cfg, dev->regs + FIMC_REG_MSCTRL);
}
void fimc_hw_dis_capture(struct fimc_dev *dev)
{
u32 cfg = readl(dev->regs + FIMC_REG_CIIMGCPT);
cfg &= ~(FIMC_REG_CIIMGCPT_IMGCPTEN | FIMC_REG_CIIMGCPT_IMGCPTEN_SC);
writel(cfg, dev->regs + FIMC_REG_CIIMGCPT);
}
/* Return an index to the buffer actually being written. */
u32 fimc_hw_get_frame_index(struct fimc_dev *dev)
{
u32 reg;
if (dev->variant->has_cistatus2) {
reg = readl(dev->regs + FIMC_REG_CISTATUS2) & 0x3F;
return reg > 0 ? --reg : reg;
}
reg = readl(dev->regs + FIMC_REG_CISTATUS);
return (reg & FIMC_REG_CISTATUS_FRAMECNT_MASK) >>
FIMC_REG_CISTATUS_FRAMECNT_SHIFT;
}
/* Locking: the caller holds fimc->slock */
void fimc_activate_capture(struct fimc_ctx *ctx)
{
fimc_hw_enable_scaler(ctx->fimc_dev, ctx->scaler.enabled);
fimc_hw_en_capture(ctx);
}
void fimc_deactivate_capture(struct fimc_dev *fimc)
{
fimc_hw_en_lastirq(fimc, true);
fimc_hw_dis_capture(fimc);
fimc_hw_enable_scaler(fimc, false);
fimc_hw_en_lastirq(fimc, false);
}