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/*
* . 2004-01-03: SW.LEE <hitchcar@sec.samsung.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License 2. See the file COPYING in the main directory of this archive
* for more details.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/irq.h>
#include <linux/tqueue.h>
#include <linux/locks.h>
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/miscdevice.h>
#include <linux/wait.h>
#include <asm/io.h>
#include <asm/semaphore.h>
#include <asm/hardware.h>
#include <asm/uaccess.h>
#include <asm/arch/cpu_s3c2440.h>
#include <asm/arch/S3C2440.h>
#include "camif.h"
#include "videodev.h"
/*
Codec_formats/Preview_format[0] must be same to initial value of
preview_init_param/codec_init_param
*/
const struct v4l2_fmtdesc codec_formats[] = {
{
.index = 0,
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
// .flags = FORMAT_FLAGS_PLANAR,
.description = "4:2:2, planar, Y-Cb-Cr",
.pixelformat = V4L2_PIX_FMT_YUV422P,
},{
.index = 1,
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
// .flags = FORMAT_FLAGS_PLANAR,
.name = "4:2:0, planar, Y-Cb-Cr",
.fourcc = V4L2_PIX_FMT_YUV420,
}
};
/* Todo
FIMC V4L2_PIX_FMT_RGB565 is not same to that of V4L2spec
and so we need image convert to FIMC V4l2_PIX_FMT_RGB565.
*/
const struct v4l2_fmtdesc preview_formats[] = {
{
.index = 1,
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
.description = "16 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB565,
// .flags = FORMAT_FLAGS_PACKED,
},
{
.index = 0,
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
// .flags = FORMAT_FLAGS_PACKED,
.description = "32 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_BGR32,
}
}
#define NUM_F ARRARY_SIZE(preview_formats)
/*
* This function and v4l2 structure made for V4L2 API functions
* App <--> v4l2 <--> logical param <--> hardware
*/
static int camif_get_v4l2(camif_cfg_t *cfg)
{
return 0;
}
/*
** Gives the depth of a video4linux2 fourcc aka pixel format in bits.
*/
static int pixfmt2depth(int pixfmt,int *fmtptr)
{
int fmt, depth;
switch (pixfmt) {
case V4L2_PIX_FMT_RGB565:
case V4L2_PIX_FMT_RGB565X:
fmt = CAMIF_RGB_16;
depth = 16;
break;
case V4L2_PIX_FMT_BGR24: /* Not tested */
case V4L2_PIX_FMT_RGB24:
fmt = CAMIF_RGB_24;
depth = 24;
break;
case V4L2_PIX_FMT_BGR32:
case V4L2_PIX_FMT_RGB32:
fmt = CAMIF_RGB_24;
depth 32;
break;
case V4L2_PIX_FMT_GREY: /* Not tested */
fmt = CAMIF_OUT_YCBCR420;
depth = 8;
break;
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_UYVY:
case V4L2_PIX_FMT_YUV422P:
fmt = CAMIF_OUT_YCBCR422;
depth = 16;
break;
case V4L2_PIX_FMT_YUV420:
fmt = CAMIF_OUT_YCBCR420;
depth = 12;
break;
}
if (fmtptr) *fmtptr = fmt;
return depth;
}
static int camif_s_v4l2(camif_cfg_t *cfg)
{
int num = cfg->v2.used_fmt;
if ( !(cfg->v2.status&CAMIF_V4L2_INIT)) {
int depth;
int fourcc = v2.fmtdesc[num].pixelformat;
/* To define v4l2_fmtsdesc */
if (cfg->dma_type == CAMIF_CODEC)
cfg->v2->fmtdesc = codec_formats;
else
cfg->v2->fmtdesc = preview_formats;
/* To define v4l2_format used currently */
cfg->v2.fmt.width = cfg->target_x;
cfg->v2.fmt.height = cfg->target_y;
cfg->v2.fmt.field = V4L2_FIELD_NONE;
cfg->v2.fmt.pixelformat = fourcc;
depth = pixfmt2depth(fourcc,NULL);
cfg->v2.fmt.bytesperline= cfg->v2.fmt.width*depth >> 3;
cfg->v2.fmt.sizeimage =
cfg->v2.fmt.height * cfg->v2.fmt.bytesperline;
/* To define v4l2_input */
cfg->v2.input.index = 0;
if (cfg->dma_type == CAMIF_CODEC)
snprintf(cfg->v2.input.name, 31, "CAMIF CODEC");
else
snprintf(cfg->v2.input.name, 31, "CAMIF PREVIEW");
cfg->v2.input.type = V4L2_INPUT_TYPE_CAMERA;
/* Write the Status of v4l2 machine */
cfg->v2.status |= CAMIF_V4L2_INIT;
}
return 0;
}
static int camif_g_fmt(camif_cfg_t *cfg, struct v4l2_format *f)
{
int size = sizeof(struct v4l2_pix_format);
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
memset(&f->fmt.pix,0,size);
memcpy(&f->fmt.pix,&cfg->v2.fmt,size);
return 0;
default:
return -EINVAL;
}
}
/* Copy v4l2 parameter into other element of camif_cfg_t */
static int camif_s_try(camif_cfg_t *cfg, int f)
{
int fmt;
cfg->target_x = cfg->v2.fmt.width;
cfg->target_y = cfg->v2.fmt.height;
pixfmt2depth(cfg->v2.fmt.pixelformat,&fmt);
cfg->fmt = fmt;
camif_dynamic_conf(cfg);
}
static int camif_s_fmt(camif_cfg_t *cfg, struct v4l2_format *f)
{
int retval;
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
{
/* update our state informations */
// down(&fh->cap.lock);
cfg->v2.fmt = f->pix;
cfg->v2.status |= CAMIF_v4L2_DIRTY;
camif_dynamic_conf(cfg);
cfg->v2.status &= ~CAMIF_v4L2_DIRTY; /* dummy ? */
// up(&fh->cap.lock);
return 0;
}
default:
return -EINVAL;
}
}
/* Refer ioctl of videodeX.c and bttv-driver.c */
int camif_do_ioctl
(struct inode *inode, struct file *file,unsigned int cmd, void * arg)
{
camif_cfg_t *cfg = file->private_data;
int ret = 0;
switch (cmd) {
case VIDIOC_QUERYCAP:
{
struct v4l2_capability *cap = arg;
strcpy(cap->driver,"Fimc Camera");
strlcpy(cap->card,cfg->v->name,sizeof(cap->card));
sprintf(cap->bus_info,"FIMC 2.0 AHB Bus");
cap->version = 0;
cap->capabilities =
V4L2_CAP_VIDEO_CAPTURE |V4L2_CAP_READWRITE;
return 0;
}
case VIDIOC_G_FMT:
{
struct v4l2_format *f = arg;
return camif_g_fmt(cfg,f);
}
case VIDIOC_S_FMT:
{
struct v4l2_format *f = arg;
return camif_s_fmt(cfg,f);
}
case VIDIOC_ENUM_FMT:
{
struct v4l2_fmtdesc *f = arg;
enum v4l2_buf_type type = f->type;
int index = f->index;
if (index >= NUM_F)
return -EINVAL;
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
break;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
case V4L2_BUF_TYPE_VBI_CAPTURE:
default:
return -EINVAL;
}
memset(f,0,sizeof(*f));
memcpy(f,cfg->v2.fmtdesc+index,sizeof(*f));
return 0;
}
case VIDIOC_G_INPUT:
{
u32 *i = arg;
*i = cfg->v2.input;
return 0;
}
case VIDIOC_S_INPUT:
{
int index = *((int *)arg);
if (index != 0)
return -EINVAL;
cfg->v2.input.index = index;
return 0;
}
default:
return -ENOIOCTLCMD; /* errno.h */
} /* End of Switch */
}
/*
* Local variables:
* tab-width: 8
* c-indent-level: 8
* c-basic-offset: 8
* c-set-style: "K&R"
* End:
*/
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