static int vidioc_enum_framesizes(struct file *file, void *fh,struct v4l2_frmsizeenum *fsize) { int ret = 0,i=0; struct ov5640_fmt *fmt = NULL; struct v4l2_frmsize_discrete *frmsize = NULL; for (i = 0; i < ARRAY_SIZE(formats); i++) { if (formats[i].fourcc == fsize->pixel_format){ fmt = &formats[i]; break; } } if (fmt == NULL) return -EINVAL; if ((fmt->fourcc == V4L2_PIX_FMT_NV21) ||(fmt->fourcc == V4L2_PIX_FMT_NV12) ||(fmt->fourcc == V4L2_PIX_FMT_YUV420) ||(fmt->fourcc == V4L2_PIX_FMT_YVU420)){ printk("ov5640_prev_resolution[fsize->index]" " before fsize->index== %d\n",fsize->index);//potti if (fsize->index >= ARRAY_SIZE(prev_resolution_array)) return -EINVAL; frmsize = &prev_resolution_array[fsize->index].frmsize; printk("ov5640_prev_resolution[fsize->index]" " after fsize->index== %d\n",fsize->index); fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; fsize->discrete.width = frmsize->width; fsize->discrete.height = frmsize->height; } else if (fmt->fourcc == V4L2_PIX_FMT_RGB24){ printk("ov5640_pic_resolution[fsize->index]" " before fsize->index== %d\n",fsize->index); if (fsize->index >= ARRAY_SIZE(capture_resolution_array)) return -EINVAL; frmsize = &capture_resolution_array[fsize->index].frmsize; printk("ov5640_pic_resolution[fsize->index]" " after fsize->index== %d\n",fsize->index); fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; fsize->discrete.width = frmsize->width; fsize->discrete.height = frmsize->height; } return ret; } static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { struct ov5640_fmt *fmt; if (f->index >= ARRAY_SIZE(formats)) return -EINVAL; fmt = &formats[f->index]; strlcpy(f->description, fmt->name, sizeof(f->description)); f->pixelformat = fmt->fourcc; return 0; }