#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/time.h>
#include <linux/version.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/v4l2-dev.h>
#include <media/videobuf-dma-contig.h>
+#include <media/soc_mediabus.h>
#include <asm/dma.h>
#include <asm/fiq.h>
/*
* CSI registers
*/
-#define DMA_CCR(x) (0x8c + ((x) << 6)) /* Control Registers */
-#define DMA_DIMR 0x08 /* Interrupt mask Register */
#define CSICR1 0x00 /* CSI Control Register 1 */
#define CSISR 0x08 /* CSI Status Register */
#define CSIRXR 0x10 /* CSI RxFIFO Register */
/* buffer for one video frame */
struct mx1_buffer {
/* common v4l buffer stuff -- must be first */
- struct videobuf_buffer vb;
- const struct soc_camera_data_format *fmt;
- int inwork;
+ struct videobuf_buffer vb;
+ enum v4l2_mbus_pixelcode code;
+ int inwork;
};
/*
unsigned int *size)
{
struct soc_camera_device *icd = vq->priv_data;
+ int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width,
+ icd->current_fmt->host_fmt);
- *size = icd->user_width * icd->user_height *
- ((icd->current_fmt->depth + 7) >> 3);
+ if (bytes_per_line < 0)
+ return bytes_per_line;
+
+ *size = bytes_per_line * icd->user_height;
if (!*count)
*count = 32;
- while (*size * *count > MAX_VIDEO_MEM * 1024 * 1024)
- (*count)--;
+ if (*size * *count > MAX_VIDEO_MEM * 1024 * 1024)
+ *count = (MAX_VIDEO_MEM * 1024 * 1024) / *size;
dev_dbg(icd->dev.parent, "count=%d, size=%d\n", *count, *size);
struct soc_camera_device *icd = vq->priv_data;
struct mx1_buffer *buf = container_of(vb, struct mx1_buffer, vb);
int ret;
+ int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width,
+ icd->current_fmt->host_fmt);
+
+ if (bytes_per_line < 0)
+ return bytes_per_line;
dev_dbg(icd->dev.parent, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
vb, vb->baddr, vb->bsize);
*/
buf->inwork = 1;
- if (buf->fmt != icd->current_fmt ||
+ if (buf->code != icd->current_fmt->code ||
vb->width != icd->user_width ||
vb->height != icd->user_height ||
vb->field != field) {
- buf->fmt = icd->current_fmt;
+ buf->code = icd->current_fmt->code;
vb->width = icd->user_width;
vb->height = icd->user_height;
vb->field = field;
vb->state = VIDEOBUF_NEEDS_INIT;
}
- vb->size = vb->width * vb->height * ((buf->fmt->depth + 7) >> 3);
+ vb->size = bytes_per_line * vb->height;
if (0 != vb->baddr && vb->bsize < vb->size) {
ret = -EINVAL;
goto out;
/* MX1 supports only 8bit buswidth */
common_flags = soc_camera_bus_param_compatible(camera_flags,
- CSI_BUS_FLAGS);
+ CSI_BUS_FLAGS);
if (!common_flags)
return -EINVAL;
- icd->buswidth = 8;
-
/* Make choises, based on platform choice */
if ((common_flags & SOCAM_VSYNC_ACTIVE_HIGH) &&
(common_flags & SOCAM_VSYNC_ACTIVE_LOW)) {
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
const struct soc_camera_format_xlate *xlate;
struct v4l2_pix_format *pix = &f->fmt.pix;
- int ret;
+ struct v4l2_mbus_framefmt mf;
+ int ret, buswidth;
xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
if (!xlate) {
return -EINVAL;
}
- ret = v4l2_subdev_call(sd, video, s_fmt, f);
- if (!ret) {
- icd->buswidth = xlate->buswidth;
- icd->current_fmt = xlate->host_fmt;
+ buswidth = xlate->host_fmt->bits_per_sample;
+ if (buswidth > 8) {
+ dev_warn(icd->dev.parent,
+ "bits-per-sample %d for format %x unsupported\n",
+ buswidth, pix->pixelformat);
+ return -EINVAL;
}
+ mf.width = pix->width;
+ mf.height = pix->height;
+ mf.field = pix->field;
+ mf.colorspace = pix->colorspace;
+ mf.code = xlate->code;
+
+ ret = v4l2_subdev_call(sd, video, s_mbus_fmt, &mf);
+ if (ret < 0)
+ return ret;
+
+ if (mf.code != xlate->code)
+ return -EINVAL;
+
+ pix->width = mf.width;
+ pix->height = mf.height;
+ pix->field = mf.field;
+ pix->colorspace = mf.colorspace;
+ icd->current_fmt = xlate;
+
return ret;
}
struct v4l2_format *f)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+ const struct soc_camera_format_xlate *xlate;
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ struct v4l2_mbus_framefmt mf;
+ int ret;
/* TODO: limit to mx1 hardware capabilities */
+ xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
+ if (!xlate) {
+ dev_warn(icd->dev.parent, "Format %x not found\n",
+ pix->pixelformat);
+ return -EINVAL;
+ }
+
+ mf.width = pix->width;
+ mf.height = pix->height;
+ mf.field = pix->field;
+ mf.colorspace = pix->colorspace;
+ mf.code = xlate->code;
+
/* limit to sensor capabilities */
- return v4l2_subdev_call(sd, video, try_fmt, f);
+ ret = v4l2_subdev_call(sd, video, try_mbus_fmt, &mf);
+ if (ret < 0)
+ return ret;
+
+ pix->width = mf.width;
+ pix->height = mf.height;
+ pix->field = mf.field;
+ pix->colorspace = mf.colorspace;
+
+ return 0;
}
static int mx1_camera_reqbufs(struct soc_camera_file *icf,
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
- if (!res || !irq) {
+ if (!res || (int)irq <= 0) {
err = -ENODEV;
goto exit;
}
pcdev);
imx_dma_config_channel(pcdev->dma_chan, IMX_DMA_TYPE_FIFO,
- IMX_DMA_MEMSIZE_32, DMA_REQ_CSI_R, 0);
+ IMX_DMA_MEMSIZE_32, MX1_DMA_REQ_CSI_R, 0);
/* burst length : 16 words = 64 bytes */
imx_dma_config_burstlen(pcdev->dma_chan, 0);
set_fiq_handler(&mx1_camera_sof_fiq_start, &mx1_camera_sof_fiq_end -
&mx1_camera_sof_fiq_start);
- regs.ARM_r8 = DMA_BASE + DMA_DIMR;
- regs.ARM_r9 = DMA_BASE + DMA_CCR(pcdev->dma_chan);
+ regs.ARM_r8 = (long)MX1_DMA_DIMR;
+ regs.ARM_r9 = (long)MX1_DMA_CCR(pcdev->dma_chan);
regs.ARM_r10 = (long)pcdev->base + CSICR1;
regs.ARM_fp = (long)pcdev->base + CSISR;
regs.ARM_sp = 1 << pcdev->dma_chan;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff