#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
+#include <linux/sched.h>
#include <media/v4l2-common.h>
#include <media/v4l2-dev.h>
u32 save_cicr[5];
};
+struct pxa_cam {
+ unsigned long flags;
+};
+
static const char *pxa_cam_driver_description = "PXA_Camera";
static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
dev_dbg(icd->dev.parent, "count=%d, size=%d\n", *count, *size);
- *size = roundup(icd->rect_current.width * icd->rect_current.height *
+ *size = roundup(icd->user_width * icd->user_height *
((icd->current_fmt->depth + 7) >> 3), 8);
if (0 == *count)
for (i = 0; i < ARRAY_SIZE(buf->dmas); i++) {
if (buf->dmas[i].sg_cpu)
- dma_free_coherent(ici->v4l2_dev.dev, buf->dmas[i].sg_size,
+ dma_free_coherent(ici->v4l2_dev.dev,
+ buf->dmas[i].sg_size,
buf->dmas[i].sg_cpu,
buf->dmas[i].sg_dma);
buf->dmas[i].sg_cpu = NULL;
buf->inwork = 1;
if (buf->fmt != icd->current_fmt ||
- vb->width != icd->rect_current.width ||
- vb->height != icd->rect_current.height ||
+ vb->width != icd->user_width ||
+ vb->height != icd->user_height ||
vb->field != field) {
buf->fmt = icd->current_fmt;
- vb->width = icd->rect_current.width;
- vb->height = icd->rect_current.height;
+ vb->width = icd->user_width;
+ vb->height = icd->user_height;
vb->field = field;
vb->state = VIDEOBUF_NEEDS_INIT;
}
struct pxa_camera_dev *pcdev)
{
unsigned long mclk = pcdev->mclk;
- struct device *dev = pcdev->soc_host.v4l2_dev.dev;
+ struct device *dev = &pdev->dev;
u32 div;
unsigned long lcdclk;
return 0;
}
-static int pxa_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
+static void pxa_camera_setup_cicr(struct soc_camera_device *icd,
+ unsigned long flags, __u32 pixfmt)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
- unsigned long dw, bpp, bus_flags, camera_flags, common_flags;
+ unsigned long dw, bpp;
u32 cicr0, cicr1, cicr2, cicr3, cicr4 = 0;
- int ret = test_platform_param(pcdev, icd->buswidth, &bus_flags);
-
- if (ret < 0)
- return ret;
-
- camera_flags = icd->ops->query_bus_param(icd);
-
- common_flags = soc_camera_bus_param_compatible(camera_flags, bus_flags);
- if (!common_flags)
- return -EINVAL;
-
- pcdev->channels = 1;
-
- /* Make choises, based on platform preferences */
- if ((common_flags & SOCAM_HSYNC_ACTIVE_HIGH) &&
- (common_flags & SOCAM_HSYNC_ACTIVE_LOW)) {
- if (pcdev->platform_flags & PXA_CAMERA_HSP)
- common_flags &= ~SOCAM_HSYNC_ACTIVE_HIGH;
- else
- common_flags &= ~SOCAM_HSYNC_ACTIVE_LOW;
- }
-
- if ((common_flags & SOCAM_VSYNC_ACTIVE_HIGH) &&
- (common_flags & SOCAM_VSYNC_ACTIVE_LOW)) {
- if (pcdev->platform_flags & PXA_CAMERA_VSP)
- common_flags &= ~SOCAM_VSYNC_ACTIVE_HIGH;
- else
- common_flags &= ~SOCAM_VSYNC_ACTIVE_LOW;
- }
-
- if ((common_flags & SOCAM_PCLK_SAMPLE_RISING) &&
- (common_flags & SOCAM_PCLK_SAMPLE_FALLING)) {
- if (pcdev->platform_flags & PXA_CAMERA_PCP)
- common_flags &= ~SOCAM_PCLK_SAMPLE_RISING;
- else
- common_flags &= ~SOCAM_PCLK_SAMPLE_FALLING;
- }
-
- ret = icd->ops->set_bus_param(icd, common_flags);
- if (ret < 0)
- return ret;
/* Datawidth is now guaranteed to be equal to one of the three values.
* We fix bit-per-pixel equal to data-width... */
- switch (common_flags & SOCAM_DATAWIDTH_MASK) {
+ switch (flags & SOCAM_DATAWIDTH_MASK) {
case SOCAM_DATAWIDTH_10:
dw = 4;
bpp = 0x40;
cicr4 |= CICR4_PCLK_EN;
if (pcdev->platform_flags & PXA_CAMERA_MCLK_EN)
cicr4 |= CICR4_MCLK_EN;
- if (common_flags & SOCAM_PCLK_SAMPLE_FALLING)
+ if (flags & SOCAM_PCLK_SAMPLE_FALLING)
cicr4 |= CICR4_PCP;
- if (common_flags & SOCAM_HSYNC_ACTIVE_LOW)
+ if (flags & SOCAM_HSYNC_ACTIVE_LOW)
cicr4 |= CICR4_HSP;
- if (common_flags & SOCAM_VSYNC_ACTIVE_LOW)
+ if (flags & SOCAM_VSYNC_ACTIVE_LOW)
cicr4 |= CICR4_VSP;
cicr0 = __raw_readl(pcdev->base + CICR0);
if (cicr0 & CICR0_ENB)
__raw_writel(cicr0 & ~CICR0_ENB, pcdev->base + CICR0);
- cicr1 = CICR1_PPL_VAL(icd->rect_current.width - 1) | bpp | dw;
+ cicr1 = CICR1_PPL_VAL(icd->user_width - 1) | bpp | dw;
switch (pixfmt) {
case V4L2_PIX_FMT_YUV422P:
}
cicr2 = 0;
- cicr3 = CICR3_LPF_VAL(icd->rect_current.height - 1) |
+ cicr3 = CICR3_LPF_VAL(icd->user_height - 1) |
CICR3_BFW_VAL(min((unsigned short)255, icd->y_skip_top));
cicr4 |= pcdev->mclk_divisor;
CICR0_SIM_MP : (CICR0_SL_CAP_EN | CICR0_SIM_SP));
cicr0 |= CICR0_DMAEN | CICR0_IRQ_MASK;
__raw_writel(cicr0, pcdev->base + CICR0);
+}
+
+static int pxa_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
+{
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+ struct pxa_camera_dev *pcdev = ici->priv;
+ unsigned long bus_flags, camera_flags, common_flags;
+ int ret = test_platform_param(pcdev, icd->buswidth, &bus_flags);
+ struct pxa_cam *cam = icd->host_priv;
+
+ if (ret < 0)
+ return ret;
+
+ camera_flags = icd->ops->query_bus_param(icd);
+
+ common_flags = soc_camera_bus_param_compatible(camera_flags, bus_flags);
+ if (!common_flags)
+ return -EINVAL;
+
+ pcdev->channels = 1;
+
+ /* Make choises, based on platform preferences */
+ if ((common_flags & SOCAM_HSYNC_ACTIVE_HIGH) &&
+ (common_flags & SOCAM_HSYNC_ACTIVE_LOW)) {
+ if (pcdev->platform_flags & PXA_CAMERA_HSP)
+ common_flags &= ~SOCAM_HSYNC_ACTIVE_HIGH;
+ else
+ common_flags &= ~SOCAM_HSYNC_ACTIVE_LOW;
+ }
+
+ if ((common_flags & SOCAM_VSYNC_ACTIVE_HIGH) &&
+ (common_flags & SOCAM_VSYNC_ACTIVE_LOW)) {
+ if (pcdev->platform_flags & PXA_CAMERA_VSP)
+ common_flags &= ~SOCAM_VSYNC_ACTIVE_HIGH;
+ else
+ common_flags &= ~SOCAM_VSYNC_ACTIVE_LOW;
+ }
+
+ if ((common_flags & SOCAM_PCLK_SAMPLE_RISING) &&
+ (common_flags & SOCAM_PCLK_SAMPLE_FALLING)) {
+ if (pcdev->platform_flags & PXA_CAMERA_PCP)
+ common_flags &= ~SOCAM_PCLK_SAMPLE_RISING;
+ else
+ common_flags &= ~SOCAM_PCLK_SAMPLE_FALLING;
+ }
+
+ cam->flags = common_flags;
+
+ ret = icd->ops->set_bus_param(icd, common_flags);
+ if (ret < 0)
+ return ret;
+
+ pxa_camera_setup_cicr(icd, common_flags, pixfmt);
return 0;
}
{
struct device *dev = icd->dev.parent;
int formats = 0, buswidth, ret;
+ struct pxa_cam *cam;
buswidth = required_buswidth(icd->formats + idx);
if (ret < 0)
return 0;
+ if (!icd->host_priv) {
+ cam = kzalloc(sizeof(*cam), GFP_KERNEL);
+ if (!cam)
+ return -ENOMEM;
+
+ icd->host_priv = cam;
+ } else {
+ cam = icd->host_priv;
+ }
+
switch (icd->formats[idx].fourcc) {
case V4L2_PIX_FMT_UYVY:
formats++;
return formats;
}
+static void pxa_camera_put_formats(struct soc_camera_device *icd)
+{
+ kfree(icd->host_priv);
+ icd->host_priv = NULL;
+}
+
+static int pxa_camera_check_frame(struct v4l2_pix_format *pix)
+{
+ /* limit to pxa hardware capabilities */
+ return pix->height < 32 || pix->height > 2048 || pix->width < 48 ||
+ pix->width > 2048 || (pix->width & 0x01);
+}
+
static int pxa_camera_set_crop(struct soc_camera_device *icd,
struct v4l2_crop *a)
{
.master_clock = pcdev->mclk,
.pixel_clock_max = pcdev->ciclk / 4,
};
+ struct v4l2_format f;
+ struct v4l2_pix_format *pix = &f.fmt.pix, pix_tmp;
+ struct pxa_cam *cam = icd->host_priv;
int ret;
/* If PCLK is used to latch data from the sensor, check sense */
if (ret < 0) {
dev_warn(dev, "Failed to crop to %ux%u@%u:%u\n",
rect->width, rect->height, rect->left, rect->top);
- } else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) {
+ return ret;
+ }
+
+ f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+ ret = v4l2_subdev_call(sd, video, g_fmt, &f);
+ if (ret < 0)
+ return ret;
+
+ pix_tmp = *pix;
+ if (pxa_camera_check_frame(pix)) {
+ /*
+ * Camera cropping produced a frame beyond our capabilities.
+ * FIXME: just extract a subframe, that we can process.
+ */
+ v4l_bound_align_image(&pix->width, 48, 2048, 1,
+ &pix->height, 32, 2048, 0,
+ icd->current_fmt->fourcc == V4L2_PIX_FMT_YUV422P ?
+ 4 : 0);
+ ret = v4l2_subdev_call(sd, video, s_fmt, &f);
+ if (ret < 0)
+ return ret;
+
+ if (pxa_camera_check_frame(pix)) {
+ dev_warn(icd->dev.parent,
+ "Inconsistent state. Use S_FMT to repair\n");
+ return -EINVAL;
+ }
+ }
+
+ if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) {
if (sense.pixel_clock > sense.pixel_clock_max) {
dev_err(dev,
"pixel clock %lu set by the camera too high!",
recalculate_fifo_timeout(pcdev, sense.pixel_clock);
}
+ icd->user_width = pix->width;
+ icd->user_height = pix->height;
+
+ pxa_camera_setup_cicr(icd, cam->flags, icd->current_fmt->fourcc);
+
return ret;
}
icd->sense = &sense;
cam_f.fmt.pix.pixelformat = cam_fmt->fourcc;
- ret = v4l2_subdev_call(sd, video, s_fmt, f);
+ ret = v4l2_subdev_call(sd, video, s_fmt, &cam_f);
+ cam_f.fmt.pix.pixelformat = pix->pixelformat;
+ *pix = cam_f.fmt.pix;
icd->sense = NULL;
if (ret < 0) {
dev_warn(dev, "Failed to configure for format %x\n",
pix->pixelformat);
+ } else if (pxa_camera_check_frame(pix)) {
+ dev_warn(dev,
+ "Camera driver produced an unsupported frame %dx%d\n",
+ pix->width, pix->height);
+ ret = -EINVAL;
} else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) {
if (sense.pixel_clock > sense.pixel_clock_max) {
dev_err(dev,
*/
v4l_bound_align_image(&pix->width, 48, 2048, 1,
&pix->height, 32, 2048, 0,
- xlate->host_fmt->fourcc == V4L2_PIX_FMT_YUV422P ? 4 : 0);
+ pixfmt == V4L2_PIX_FMT_YUV422P ? 4 : 0);
pix->bytesperline = pix->width *
DIV_ROUND_UP(xlate->host_fmt->depth, 8);
pix->pixelformat = xlate->cam_fmt->fourcc;
/* limit to sensor capabilities */
ret = v4l2_subdev_call(sd, video, try_fmt, f);
- pix->pixelformat = xlate->host_fmt->fourcc;
+ pix->pixelformat = pixfmt;
field = pix->field;
.resume = pxa_camera_resume,
.set_crop = pxa_camera_set_crop,
.get_formats = pxa_camera_get_formats,
+ .put_formats = pxa_camera_put_formats,
.set_fmt = pxa_camera_set_fmt,
.try_fmt = pxa_camera_try_fmt,
.init_videobuf = pxa_camera_init_videobuf,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff