607 lines
17 KiB
C
607 lines
17 KiB
C
/*
|
|
* Samsung s3c24xx/s3c64xx SoC CAMIF driver
|
|
*
|
|
* Copyright (C) 2012 Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
|
|
* Copyright (C) 2012 Tomasz Figa <tomasz.figa@gmail.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.
|
|
*/
|
|
#define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__
|
|
|
|
#include <linux/delay.h>
|
|
#include "camif-regs.h"
|
|
|
|
#define camif_write(_camif, _off, _val) writel(_val, (_camif)->io_base + (_off))
|
|
#define camif_read(_camif, _off) readl((_camif)->io_base + (_off))
|
|
|
|
void camif_hw_reset(struct camif_dev *camif)
|
|
{
|
|
u32 cfg;
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CISRCFMT);
|
|
cfg |= CISRCFMT_ITU601_8BIT;
|
|
camif_write(camif, S3C_CAMIF_REG_CISRCFMT, cfg);
|
|
|
|
/* S/W reset */
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CIGCTRL);
|
|
cfg |= CIGCTRL_SWRST;
|
|
if (camif->variant->ip_revision == S3C6410_CAMIF_IP_REV)
|
|
cfg |= CIGCTRL_IRQ_LEVEL;
|
|
camif_write(camif, S3C_CAMIF_REG_CIGCTRL, cfg);
|
|
udelay(10);
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CIGCTRL);
|
|
cfg &= ~CIGCTRL_SWRST;
|
|
camif_write(camif, S3C_CAMIF_REG_CIGCTRL, cfg);
|
|
udelay(10);
|
|
}
|
|
|
|
void camif_hw_clear_pending_irq(struct camif_vp *vp)
|
|
{
|
|
u32 cfg = camif_read(vp->camif, S3C_CAMIF_REG_CIGCTRL);
|
|
cfg |= CIGCTRL_IRQ_CLR(vp->id);
|
|
camif_write(vp->camif, S3C_CAMIF_REG_CIGCTRL, cfg);
|
|
}
|
|
|
|
/*
|
|
* Sets video test pattern (off, color bar, horizontal or vertical gradient).
|
|
* External sensor pixel clock must be active for the test pattern to work.
|
|
*/
|
|
void camif_hw_set_test_pattern(struct camif_dev *camif, unsigned int pattern)
|
|
{
|
|
u32 cfg = camif_read(camif, S3C_CAMIF_REG_CIGCTRL);
|
|
cfg &= ~CIGCTRL_TESTPATTERN_MASK;
|
|
cfg |= (pattern << 27);
|
|
camif_write(camif, S3C_CAMIF_REG_CIGCTRL, cfg);
|
|
}
|
|
|
|
void camif_hw_set_effect(struct camif_dev *camif, unsigned int effect,
|
|
unsigned int cr, unsigned int cb)
|
|
{
|
|
static const struct v4l2_control colorfx[] = {
|
|
{ V4L2_COLORFX_NONE, CIIMGEFF_FIN_BYPASS },
|
|
{ V4L2_COLORFX_BW, CIIMGEFF_FIN_ARBITRARY },
|
|
{ V4L2_COLORFX_SEPIA, CIIMGEFF_FIN_ARBITRARY },
|
|
{ V4L2_COLORFX_NEGATIVE, CIIMGEFF_FIN_NEGATIVE },
|
|
{ V4L2_COLORFX_ART_FREEZE, CIIMGEFF_FIN_ARTFREEZE },
|
|
{ V4L2_COLORFX_EMBOSS, CIIMGEFF_FIN_EMBOSSING },
|
|
{ V4L2_COLORFX_SILHOUETTE, CIIMGEFF_FIN_SILHOUETTE },
|
|
{ V4L2_COLORFX_SET_CBCR, CIIMGEFF_FIN_ARBITRARY },
|
|
};
|
|
unsigned int i, cfg;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(colorfx); i++)
|
|
if (colorfx[i].id == effect)
|
|
break;
|
|
|
|
if (i == ARRAY_SIZE(colorfx))
|
|
return;
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CIIMGEFF(camif->vp->offset));
|
|
/* Set effect */
|
|
cfg &= ~CIIMGEFF_FIN_MASK;
|
|
cfg |= colorfx[i].value;
|
|
/* Set both paths */
|
|
if (camif->variant->ip_revision >= S3C6400_CAMIF_IP_REV) {
|
|
if (effect == V4L2_COLORFX_NONE)
|
|
cfg &= ~CIIMGEFF_IE_ENABLE_MASK;
|
|
else
|
|
cfg |= CIIMGEFF_IE_ENABLE_MASK;
|
|
}
|
|
cfg &= ~CIIMGEFF_PAT_CBCR_MASK;
|
|
cfg |= cr | (cb << 13);
|
|
camif_write(camif, S3C_CAMIF_REG_CIIMGEFF(camif->vp->offset), cfg);
|
|
}
|
|
|
|
static const u32 src_pixfmt_map[8][2] = {
|
|
{ MEDIA_BUS_FMT_YUYV8_2X8, CISRCFMT_ORDER422_YCBYCR },
|
|
{ MEDIA_BUS_FMT_YVYU8_2X8, CISRCFMT_ORDER422_YCRYCB },
|
|
{ MEDIA_BUS_FMT_UYVY8_2X8, CISRCFMT_ORDER422_CBYCRY },
|
|
{ MEDIA_BUS_FMT_VYUY8_2X8, CISRCFMT_ORDER422_CRYCBY },
|
|
};
|
|
|
|
/* Set camera input pixel format and resolution */
|
|
void camif_hw_set_source_format(struct camif_dev *camif)
|
|
{
|
|
struct v4l2_mbus_framefmt *mf = &camif->mbus_fmt;
|
|
int i;
|
|
u32 cfg;
|
|
|
|
for (i = ARRAY_SIZE(src_pixfmt_map) - 1; i >= 0; i--) {
|
|
if (src_pixfmt_map[i][0] == mf->code)
|
|
break;
|
|
}
|
|
if (i < 0) {
|
|
i = 0;
|
|
dev_err(camif->dev,
|
|
"Unsupported pixel code, falling back to %#08x\n",
|
|
src_pixfmt_map[i][0]);
|
|
}
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CISRCFMT);
|
|
cfg &= ~(CISRCFMT_ORDER422_MASK | CISRCFMT_SIZE_CAM_MASK);
|
|
cfg |= (mf->width << 16) | mf->height;
|
|
cfg |= src_pixfmt_map[i][1];
|
|
camif_write(camif, S3C_CAMIF_REG_CISRCFMT, cfg);
|
|
}
|
|
|
|
/* Set the camera host input window offsets (cropping) */
|
|
void camif_hw_set_camera_crop(struct camif_dev *camif)
|
|
{
|
|
struct v4l2_mbus_framefmt *mf = &camif->mbus_fmt;
|
|
struct v4l2_rect *crop = &camif->camif_crop;
|
|
u32 hoff2, voff2;
|
|
u32 cfg;
|
|
|
|
/* Note: s3c244x requirement: left = f_width - rect.width / 2 */
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CIWDOFST);
|
|
cfg &= ~(CIWDOFST_OFST_MASK | CIWDOFST_WINOFSEN);
|
|
cfg |= (crop->left << 16) | crop->top;
|
|
if (crop->left != 0 || crop->top != 0)
|
|
cfg |= CIWDOFST_WINOFSEN;
|
|
camif_write(camif, S3C_CAMIF_REG_CIWDOFST, cfg);
|
|
|
|
if (camif->variant->ip_revision == S3C6410_CAMIF_IP_REV) {
|
|
hoff2 = mf->width - crop->width - crop->left;
|
|
voff2 = mf->height - crop->height - crop->top;
|
|
cfg = (hoff2 << 16) | voff2;
|
|
camif_write(camif, S3C_CAMIF_REG_CIWDOFST2, cfg);
|
|
}
|
|
}
|
|
|
|
void camif_hw_clear_fifo_overflow(struct camif_vp *vp)
|
|
{
|
|
struct camif_dev *camif = vp->camif;
|
|
u32 cfg;
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CIWDOFST);
|
|
if (vp->id == 0)
|
|
cfg |= (CIWDOFST_CLROVCOFIY | CIWDOFST_CLROVCOFICB |
|
|
CIWDOFST_CLROVCOFICR);
|
|
else
|
|
cfg |= (/* CIWDOFST_CLROVPRFIY | */ CIWDOFST_CLROVPRFICB |
|
|
CIWDOFST_CLROVPRFICR);
|
|
camif_write(camif, S3C_CAMIF_REG_CIWDOFST, cfg);
|
|
}
|
|
|
|
/* Set video bus signals polarity */
|
|
void camif_hw_set_camera_bus(struct camif_dev *camif)
|
|
{
|
|
unsigned int flags = camif->pdata.sensor.flags;
|
|
|
|
u32 cfg = camif_read(camif, S3C_CAMIF_REG_CIGCTRL);
|
|
|
|
cfg &= ~(CIGCTRL_INVPOLPCLK | CIGCTRL_INVPOLVSYNC |
|
|
CIGCTRL_INVPOLHREF | CIGCTRL_INVPOLFIELD);
|
|
|
|
if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
|
|
cfg |= CIGCTRL_INVPOLPCLK;
|
|
|
|
if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
|
|
cfg |= CIGCTRL_INVPOLVSYNC;
|
|
/*
|
|
* HREF is normally high during frame active data
|
|
* transmission and low during horizontal synchronization
|
|
* period. Thus HREF active high means HSYNC active low.
|
|
*/
|
|
if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
|
|
cfg |= CIGCTRL_INVPOLHREF; /* HREF active low */
|
|
|
|
if (camif->variant->ip_revision == S3C6410_CAMIF_IP_REV) {
|
|
if (flags & V4L2_MBUS_FIELD_EVEN_LOW)
|
|
cfg |= CIGCTRL_INVPOLFIELD;
|
|
cfg |= CIGCTRL_FIELDMODE;
|
|
}
|
|
|
|
pr_debug("Setting CIGCTRL to: %#x\n", cfg);
|
|
|
|
camif_write(camif, S3C_CAMIF_REG_CIGCTRL, cfg);
|
|
}
|
|
|
|
void camif_hw_set_output_addr(struct camif_vp *vp,
|
|
struct camif_addr *paddr, int i)
|
|
{
|
|
struct camif_dev *camif = vp->camif;
|
|
|
|
camif_write(camif, S3C_CAMIF_REG_CIYSA(vp->id, i), paddr->y);
|
|
if (camif->variant->ip_revision == S3C6410_CAMIF_IP_REV
|
|
|| vp->id == VP_CODEC) {
|
|
camif_write(camif, S3C_CAMIF_REG_CICBSA(vp->id, i),
|
|
paddr->cb);
|
|
camif_write(camif, S3C_CAMIF_REG_CICRSA(vp->id, i),
|
|
paddr->cr);
|
|
}
|
|
|
|
pr_debug("dst_buf[%d]: %pad, cb: %pad, cr: %pad\n",
|
|
i, &paddr->y, &paddr->cb, &paddr->cr);
|
|
}
|
|
|
|
static void camif_hw_set_out_dma_size(struct camif_vp *vp)
|
|
{
|
|
struct camif_frame *frame = &vp->out_frame;
|
|
u32 cfg;
|
|
|
|
cfg = camif_read(vp->camif, S3C_CAMIF_REG_CITRGFMT(vp->id, vp->offset));
|
|
cfg &= ~CITRGFMT_TARGETSIZE_MASK;
|
|
cfg |= (frame->f_width << 16) | frame->f_height;
|
|
camif_write(vp->camif, S3C_CAMIF_REG_CITRGFMT(vp->id, vp->offset), cfg);
|
|
}
|
|
|
|
static void camif_get_dma_burst(u32 width, u32 ybpp, u32 *mburst, u32 *rburst)
|
|
{
|
|
unsigned int nwords = width * ybpp / 4;
|
|
unsigned int div, rem;
|
|
|
|
if (WARN_ON(width < 8 || (width * ybpp) & 7))
|
|
return;
|
|
|
|
for (div = 16; div >= 2; div /= 2) {
|
|
if (nwords < div)
|
|
continue;
|
|
|
|
rem = nwords & (div - 1);
|
|
if (rem == 0) {
|
|
*mburst = div;
|
|
*rburst = div;
|
|
break;
|
|
}
|
|
if (rem == div / 2 || rem == div / 4) {
|
|
*mburst = div;
|
|
*rburst = rem;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void camif_hw_set_output_dma(struct camif_vp *vp)
|
|
{
|
|
struct camif_dev *camif = vp->camif;
|
|
struct camif_frame *frame = &vp->out_frame;
|
|
const struct camif_fmt *fmt = vp->out_fmt;
|
|
unsigned int ymburst = 0, yrburst = 0;
|
|
u32 cfg;
|
|
|
|
camif_hw_set_out_dma_size(vp);
|
|
|
|
if (camif->variant->ip_revision == S3C6410_CAMIF_IP_REV) {
|
|
struct camif_dma_offset *offset = &frame->dma_offset;
|
|
/* Set the input dma offsets. */
|
|
cfg = S3C_CISS_OFFS_INITIAL(offset->initial);
|
|
cfg |= S3C_CISS_OFFS_LINE(offset->line);
|
|
camif_write(camif, S3C_CAMIF_REG_CISSY(vp->id), cfg);
|
|
camif_write(camif, S3C_CAMIF_REG_CISSCB(vp->id), cfg);
|
|
camif_write(camif, S3C_CAMIF_REG_CISSCR(vp->id), cfg);
|
|
}
|
|
|
|
/* Configure DMA burst values */
|
|
camif_get_dma_burst(frame->rect.width, fmt->ybpp, &ymburst, &yrburst);
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CICTRL(vp->id, vp->offset));
|
|
cfg &= ~CICTRL_BURST_MASK;
|
|
|
|
cfg |= CICTRL_YBURST1(ymburst) | CICTRL_YBURST2(yrburst);
|
|
cfg |= CICTRL_CBURST1(ymburst / 2) | CICTRL_CBURST2(yrburst / 2);
|
|
|
|
camif_write(camif, S3C_CAMIF_REG_CICTRL(vp->id, vp->offset), cfg);
|
|
|
|
pr_debug("ymburst: %u, yrburst: %u\n", ymburst, yrburst);
|
|
}
|
|
|
|
void camif_hw_set_input_path(struct camif_vp *vp)
|
|
{
|
|
u32 cfg = camif_read(vp->camif, S3C_CAMIF_REG_MSCTRL(vp->id));
|
|
cfg &= ~MSCTRL_SEL_DMA_CAM;
|
|
camif_write(vp->camif, S3C_CAMIF_REG_MSCTRL(vp->id), cfg);
|
|
}
|
|
|
|
void camif_hw_set_target_format(struct camif_vp *vp)
|
|
{
|
|
struct camif_dev *camif = vp->camif;
|
|
struct camif_frame *frame = &vp->out_frame;
|
|
u32 cfg;
|
|
|
|
pr_debug("fw: %d, fh: %d color: %d\n", frame->f_width,
|
|
frame->f_height, vp->out_fmt->color);
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CITRGFMT(vp->id, vp->offset));
|
|
cfg &= ~CITRGFMT_TARGETSIZE_MASK;
|
|
|
|
if (camif->variant->ip_revision == S3C244X_CAMIF_IP_REV) {
|
|
/* We currently support only YCbCr 4:2:2 at the camera input */
|
|
cfg |= CITRGFMT_IN422;
|
|
cfg &= ~CITRGFMT_OUT422;
|
|
if (vp->out_fmt->color == IMG_FMT_YCBCR422P)
|
|
cfg |= CITRGFMT_OUT422;
|
|
} else {
|
|
cfg &= ~CITRGFMT_OUTFORMAT_MASK;
|
|
switch (vp->out_fmt->color) {
|
|
case IMG_FMT_RGB565...IMG_FMT_XRGB8888:
|
|
cfg |= CITRGFMT_OUTFORMAT_RGB;
|
|
break;
|
|
case IMG_FMT_YCBCR420...IMG_FMT_YCRCB420:
|
|
cfg |= CITRGFMT_OUTFORMAT_YCBCR420;
|
|
break;
|
|
case IMG_FMT_YCBCR422P:
|
|
cfg |= CITRGFMT_OUTFORMAT_YCBCR422;
|
|
break;
|
|
case IMG_FMT_YCBYCR422...IMG_FMT_CRYCBY422:
|
|
cfg |= CITRGFMT_OUTFORMAT_YCBCR422I;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Rotation is only supported by s3c64xx */
|
|
if (vp->rotation == 90 || vp->rotation == 270)
|
|
cfg |= (frame->f_height << 16) | frame->f_width;
|
|
else
|
|
cfg |= (frame->f_width << 16) | frame->f_height;
|
|
camif_write(camif, S3C_CAMIF_REG_CITRGFMT(vp->id, vp->offset), cfg);
|
|
|
|
/* Target area, output pixel width * height */
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CITAREA(vp->id, vp->offset));
|
|
cfg &= ~CITAREA_MASK;
|
|
cfg |= (frame->f_width * frame->f_height);
|
|
camif_write(camif, S3C_CAMIF_REG_CITAREA(vp->id, vp->offset), cfg);
|
|
}
|
|
|
|
void camif_hw_set_flip(struct camif_vp *vp)
|
|
{
|
|
u32 cfg = camif_read(vp->camif,
|
|
S3C_CAMIF_REG_CITRGFMT(vp->id, vp->offset));
|
|
|
|
cfg &= ~CITRGFMT_FLIP_MASK;
|
|
|
|
if (vp->hflip)
|
|
cfg |= CITRGFMT_FLIP_Y_MIRROR;
|
|
if (vp->vflip)
|
|
cfg |= CITRGFMT_FLIP_X_MIRROR;
|
|
|
|
camif_write(vp->camif, S3C_CAMIF_REG_CITRGFMT(vp->id, vp->offset), cfg);
|
|
}
|
|
|
|
static void camif_hw_set_prescaler(struct camif_vp *vp)
|
|
{
|
|
struct camif_dev *camif = vp->camif;
|
|
struct camif_scaler *sc = &vp->scaler;
|
|
u32 cfg, shfactor, addr;
|
|
|
|
addr = S3C_CAMIF_REG_CISCPRERATIO(vp->id, vp->offset);
|
|
|
|
shfactor = 10 - (sc->h_shift + sc->v_shift);
|
|
cfg = shfactor << 28;
|
|
|
|
cfg |= (sc->pre_h_ratio << 16) | sc->pre_v_ratio;
|
|
camif_write(camif, addr, cfg);
|
|
|
|
cfg = (sc->pre_dst_width << 16) | sc->pre_dst_height;
|
|
camif_write(camif, S3C_CAMIF_REG_CISCPREDST(vp->id, vp->offset), cfg);
|
|
}
|
|
|
|
static void camif_s3c244x_hw_set_scaler(struct camif_vp *vp)
|
|
{
|
|
struct camif_dev *camif = vp->camif;
|
|
struct camif_scaler *scaler = &vp->scaler;
|
|
unsigned int color = vp->out_fmt->color;
|
|
u32 cfg;
|
|
|
|
camif_hw_set_prescaler(vp);
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CISCCTRL(vp->id, vp->offset));
|
|
|
|
cfg &= ~(CISCCTRL_SCALEUP_MASK | CISCCTRL_SCALERBYPASS |
|
|
CISCCTRL_MAIN_RATIO_MASK | CIPRSCCTRL_RGB_FORMAT_24BIT);
|
|
|
|
if (scaler->enable) {
|
|
if (scaler->scaleup_h) {
|
|
if (vp->id == VP_CODEC)
|
|
cfg |= CISCCTRL_SCALEUP_H;
|
|
else
|
|
cfg |= CIPRSCCTRL_SCALEUP_H;
|
|
}
|
|
if (scaler->scaleup_v) {
|
|
if (vp->id == VP_CODEC)
|
|
cfg |= CISCCTRL_SCALEUP_V;
|
|
else
|
|
cfg |= CIPRSCCTRL_SCALEUP_V;
|
|
}
|
|
} else {
|
|
if (vp->id == VP_CODEC)
|
|
cfg |= CISCCTRL_SCALERBYPASS;
|
|
}
|
|
|
|
cfg |= ((scaler->main_h_ratio & 0x1ff) << 16);
|
|
cfg |= scaler->main_v_ratio & 0x1ff;
|
|
|
|
if (vp->id == VP_PREVIEW) {
|
|
if (color == IMG_FMT_XRGB8888)
|
|
cfg |= CIPRSCCTRL_RGB_FORMAT_24BIT;
|
|
cfg |= CIPRSCCTRL_SAMPLE;
|
|
}
|
|
|
|
camif_write(camif, S3C_CAMIF_REG_CISCCTRL(vp->id, vp->offset), cfg);
|
|
|
|
pr_debug("main: h_ratio: %#x, v_ratio: %#x",
|
|
scaler->main_h_ratio, scaler->main_v_ratio);
|
|
}
|
|
|
|
static void camif_s3c64xx_hw_set_scaler(struct camif_vp *vp)
|
|
{
|
|
struct camif_dev *camif = vp->camif;
|
|
struct camif_scaler *scaler = &vp->scaler;
|
|
unsigned int color = vp->out_fmt->color;
|
|
u32 cfg;
|
|
|
|
camif_hw_set_prescaler(vp);
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CISCCTRL(vp->id, vp->offset));
|
|
|
|
cfg &= ~(CISCCTRL_CSCR2Y_WIDE | CISCCTRL_CSCY2R_WIDE
|
|
| CISCCTRL_SCALEUP_H | CISCCTRL_SCALEUP_V
|
|
| CISCCTRL_SCALERBYPASS | CISCCTRL_ONE2ONE
|
|
| CISCCTRL_INRGB_FMT_MASK | CISCCTRL_OUTRGB_FMT_MASK
|
|
| CISCCTRL_INTERLACE | CISCCTRL_EXTRGB_EXTENSION
|
|
| CISCCTRL_MAIN_RATIO_MASK);
|
|
|
|
cfg |= (CISCCTRL_CSCR2Y_WIDE | CISCCTRL_CSCY2R_WIDE);
|
|
|
|
if (!scaler->enable) {
|
|
cfg |= CISCCTRL_SCALERBYPASS;
|
|
} else {
|
|
if (scaler->scaleup_h)
|
|
cfg |= CISCCTRL_SCALEUP_H;
|
|
if (scaler->scaleup_v)
|
|
cfg |= CISCCTRL_SCALEUP_V;
|
|
if (scaler->copy)
|
|
cfg |= CISCCTRL_ONE2ONE;
|
|
}
|
|
|
|
switch (color) {
|
|
case IMG_FMT_RGB666:
|
|
cfg |= CISCCTRL_OUTRGB_FMT_RGB666;
|
|
break;
|
|
case IMG_FMT_XRGB8888:
|
|
cfg |= CISCCTRL_OUTRGB_FMT_RGB888;
|
|
break;
|
|
}
|
|
|
|
cfg |= (scaler->main_h_ratio & 0x1ff) << 16;
|
|
cfg |= scaler->main_v_ratio & 0x1ff;
|
|
|
|
camif_write(camif, S3C_CAMIF_REG_CISCCTRL(vp->id, vp->offset), cfg);
|
|
|
|
pr_debug("main: h_ratio: %#x, v_ratio: %#x",
|
|
scaler->main_h_ratio, scaler->main_v_ratio);
|
|
}
|
|
|
|
void camif_hw_set_scaler(struct camif_vp *vp)
|
|
{
|
|
unsigned int ip_rev = vp->camif->variant->ip_revision;
|
|
|
|
if (ip_rev == S3C244X_CAMIF_IP_REV)
|
|
camif_s3c244x_hw_set_scaler(vp);
|
|
else
|
|
camif_s3c64xx_hw_set_scaler(vp);
|
|
}
|
|
|
|
void camif_hw_enable_scaler(struct camif_vp *vp, bool on)
|
|
{
|
|
u32 addr = S3C_CAMIF_REG_CISCCTRL(vp->id, vp->offset);
|
|
u32 cfg;
|
|
|
|
cfg = camif_read(vp->camif, addr);
|
|
if (on)
|
|
cfg |= CISCCTRL_SCALERSTART;
|
|
else
|
|
cfg &= ~CISCCTRL_SCALERSTART;
|
|
camif_write(vp->camif, addr, cfg);
|
|
}
|
|
|
|
void camif_hw_set_lastirq(struct camif_vp *vp, int enable)
|
|
{
|
|
u32 addr = S3C_CAMIF_REG_CICTRL(vp->id, vp->offset);
|
|
u32 cfg;
|
|
|
|
cfg = camif_read(vp->camif, addr);
|
|
if (enable)
|
|
cfg |= CICTRL_LASTIRQ_ENABLE;
|
|
else
|
|
cfg &= ~CICTRL_LASTIRQ_ENABLE;
|
|
camif_write(vp->camif, addr, cfg);
|
|
}
|
|
|
|
void camif_hw_enable_capture(struct camif_vp *vp)
|
|
{
|
|
struct camif_dev *camif = vp->camif;
|
|
u32 cfg;
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CIIMGCPT(vp->offset));
|
|
camif->stream_count++;
|
|
|
|
if (camif->variant->ip_revision == S3C6410_CAMIF_IP_REV)
|
|
cfg |= CIIMGCPT_CPT_FREN_ENABLE(vp->id);
|
|
|
|
if (vp->scaler.enable)
|
|
cfg |= CIIMGCPT_IMGCPTEN_SC(vp->id);
|
|
|
|
if (camif->stream_count == 1)
|
|
cfg |= CIIMGCPT_IMGCPTEN;
|
|
|
|
camif_write(camif, S3C_CAMIF_REG_CIIMGCPT(vp->offset), cfg);
|
|
|
|
pr_debug("CIIMGCPT: %#x, camif->stream_count: %d\n",
|
|
cfg, camif->stream_count);
|
|
}
|
|
|
|
void camif_hw_disable_capture(struct camif_vp *vp)
|
|
{
|
|
struct camif_dev *camif = vp->camif;
|
|
u32 cfg;
|
|
|
|
cfg = camif_read(camif, S3C_CAMIF_REG_CIIMGCPT(vp->offset));
|
|
cfg &= ~CIIMGCPT_IMGCPTEN_SC(vp->id);
|
|
|
|
if (WARN_ON(--(camif->stream_count) < 0))
|
|
camif->stream_count = 0;
|
|
|
|
if (camif->stream_count == 0)
|
|
cfg &= ~CIIMGCPT_IMGCPTEN;
|
|
|
|
pr_debug("CIIMGCPT: %#x, camif->stream_count: %d\n",
|
|
cfg, camif->stream_count);
|
|
|
|
camif_write(camif, S3C_CAMIF_REG_CIIMGCPT(vp->offset), cfg);
|
|
}
|
|
|
|
void camif_hw_dump_regs(struct camif_dev *camif, const char *label)
|
|
{
|
|
struct {
|
|
u32 offset;
|
|
const char * const name;
|
|
} registers[] = {
|
|
{ S3C_CAMIF_REG_CISRCFMT, "CISRCFMT" },
|
|
{ S3C_CAMIF_REG_CIWDOFST, "CIWDOFST" },
|
|
{ S3C_CAMIF_REG_CIGCTRL, "CIGCTRL" },
|
|
{ S3C_CAMIF_REG_CIWDOFST2, "CIWDOFST2" },
|
|
{ S3C_CAMIF_REG_CIYSA(0, 0), "CICOYSA0" },
|
|
{ S3C_CAMIF_REG_CICBSA(0, 0), "CICOCBSA0" },
|
|
{ S3C_CAMIF_REG_CICRSA(0, 0), "CICOCRSA0" },
|
|
{ S3C_CAMIF_REG_CIYSA(0, 1), "CICOYSA1" },
|
|
{ S3C_CAMIF_REG_CICBSA(0, 1), "CICOCBSA1" },
|
|
{ S3C_CAMIF_REG_CICRSA(0, 1), "CICOCRSA1" },
|
|
{ S3C_CAMIF_REG_CIYSA(0, 2), "CICOYSA2" },
|
|
{ S3C_CAMIF_REG_CICBSA(0, 2), "CICOCBSA2" },
|
|
{ S3C_CAMIF_REG_CICRSA(0, 2), "CICOCRSA2" },
|
|
{ S3C_CAMIF_REG_CIYSA(0, 3), "CICOYSA3" },
|
|
{ S3C_CAMIF_REG_CICBSA(0, 3), "CICOCBSA3" },
|
|
{ S3C_CAMIF_REG_CICRSA(0, 3), "CICOCRSA3" },
|
|
{ S3C_CAMIF_REG_CIYSA(1, 0), "CIPRYSA0" },
|
|
{ S3C_CAMIF_REG_CIYSA(1, 1), "CIPRYSA1" },
|
|
{ S3C_CAMIF_REG_CIYSA(1, 2), "CIPRYSA2" },
|
|
{ S3C_CAMIF_REG_CIYSA(1, 3), "CIPRYSA3" },
|
|
{ S3C_CAMIF_REG_CITRGFMT(0, 0), "CICOTRGFMT" },
|
|
{ S3C_CAMIF_REG_CITRGFMT(1, 0), "CIPRTRGFMT" },
|
|
{ S3C_CAMIF_REG_CICTRL(0, 0), "CICOCTRL" },
|
|
{ S3C_CAMIF_REG_CICTRL(1, 0), "CIPRCTRL" },
|
|
{ S3C_CAMIF_REG_CISCPREDST(0, 0), "CICOSCPREDST" },
|
|
{ S3C_CAMIF_REG_CISCPREDST(1, 0), "CIPRSCPREDST" },
|
|
{ S3C_CAMIF_REG_CISCPRERATIO(0, 0), "CICOSCPRERATIO" },
|
|
{ S3C_CAMIF_REG_CISCPRERATIO(1, 0), "CIPRSCPRERATIO" },
|
|
{ S3C_CAMIF_REG_CISCCTRL(0, 0), "CICOSCCTRL" },
|
|
{ S3C_CAMIF_REG_CISCCTRL(1, 0), "CIPRSCCTRL" },
|
|
{ S3C_CAMIF_REG_CITAREA(0, 0), "CICOTAREA" },
|
|
{ S3C_CAMIF_REG_CITAREA(1, 0), "CIPRTAREA" },
|
|
{ S3C_CAMIF_REG_CISTATUS(0, 0), "CICOSTATUS" },
|
|
{ S3C_CAMIF_REG_CISTATUS(1, 0), "CIPRSTATUS" },
|
|
{ S3C_CAMIF_REG_CIIMGCPT(0), "CIIMGCPT" },
|
|
};
|
|
u32 i;
|
|
|
|
pr_info("--- %s ---\n", label);
|
|
for (i = 0; i < ARRAY_SIZE(registers); i++) {
|
|
u32 cfg = readl(camif->io_base + registers[i].offset);
|
|
dev_info(camif->dev, "%s:\t0x%08x\n", registers[i].name, cfg);
|
|
}
|
|
}
|