#include <linux/moduleparam.h>
#include <linux/time.h>
#include <linux/version.h>
+#include <linux/slab.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/videodev2.h>
#include <linux/pm_runtime.h>
+#include <linux/sched.h>
#include <media/v4l2-common.h>
#include <media/v4l2-dev.h>
#include <media/soc_camera.h>
#include <media/sh_mobile_ceu.h>
#include <media/videobuf-dma-contig.h>
+#include <media/v4l2-mediabus.h>
+#include <media/soc_mediabus.h>
/* register offsets for sh7722 / sh7723 */
/* per video frame buffer */
struct sh_mobile_ceu_buffer {
struct videobuf_buffer vb; /* v4l buffer must be first */
- const struct soc_camera_data_format *fmt;
+ enum v4l2_mbus_pixelcode code;
};
struct sh_mobile_ceu_dev {
u32 cflcr;
- unsigned int is_interlaced:1;
+ enum v4l2_field field;
+
unsigned int image_mode:1;
unsigned int is_16bit:1;
};
struct v4l2_rect ceu_rect;
unsigned int cam_width;
unsigned int cam_height;
- const struct soc_camera_data_format *extra_fmt;
- const struct soc_camera_data_format *camera_fmt;
+ const struct soc_mbus_pixelfmt *extra_fmt;
+ enum v4l2_mbus_pixelcode code;
};
static unsigned long make_bus_param(struct sh_mobile_ceu_dev *pcdev)
return ioread32(priv->base + reg_offs);
}
+static int sh_mobile_ceu_soft_reset(struct sh_mobile_ceu_dev *pcdev)
+{
+ int i, success = 0;
+ struct soc_camera_device *icd = pcdev->icd;
+
+ ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
+
+ /* wait CSTSR.CPTON bit */
+ for (i = 0; i < 1000; i++) {
+ if (!(ceu_read(pcdev, CSTSR) & 1)) {
+ success++;
+ break;
+ }
+ udelay(1);
+ }
+
+ /* wait CAPSR.CPKIL bit */
+ for (i = 0; i < 1000; i++) {
+ if (!(ceu_read(pcdev, CAPSR) & (1 << 16))) {
+ success++;
+ break;
+ }
+ udelay(1);
+ }
+
+
+ if (2 != success) {
+ dev_warn(&icd->dev, "soft reset time out\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
/*
* Videobuf operations
*/
struct soc_camera_device *icd = vq->priv_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct sh_mobile_ceu_dev *pcdev = ici->priv;
- int bytes_per_pixel = (icd->current_fmt->depth + 7) >> 3;
+ 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;
- *size = PAGE_ALIGN(icd->user_width * icd->user_height *
- bytes_per_pixel);
+ *size = bytes_per_line * icd->user_height;
if (0 == *count)
*count = 2;
if (pcdev->video_limit) {
- while (*size * *count > pcdev->video_limit)
+ while (PAGE_ALIGN(*size) * *count > pcdev->video_limit)
(*count)--;
}
#define CEU_CETCR_MAGIC 0x0317f313 /* acknowledge magical interrupt sources */
#define CEU_CETCR_IGRW (1 << 4) /* prohibited register access interrupt bit */
#define CEU_CEIER_CPEIE (1 << 0) /* one-frame capture end interrupt */
+#define CEU_CEIER_VBP (1 << 20) /* vbp error */
#define CEU_CAPCR_CTNCP (1 << 16) /* continuous capture mode (if set) */
+#define CEU_CEIER_MASK (CEU_CEIER_CPEIE | CEU_CEIER_VBP)
-static void sh_mobile_ceu_capture(struct sh_mobile_ceu_dev *pcdev)
+/*
+ * return value doesn't reflex the success/failure to queue the new buffer,
+ * but rather the status of the previous buffer.
+ */
+static int sh_mobile_ceu_capture(struct sh_mobile_ceu_dev *pcdev)
{
struct soc_camera_device *icd = pcdev->icd;
dma_addr_t phys_addr_top, phys_addr_bottom;
+ unsigned long top1, top2;
+ unsigned long bottom1, bottom2;
+ u32 status;
+ int ret = 0;
- /* The hardware is _very_ picky about this sequence. Especially
+ /*
+ * The hardware is _very_ picky about this sequence. Especially
* the CEU_CETCR_MAGIC value. It seems like we need to acknowledge
* several not-so-well documented interrupt sources in CETCR.
*/
- ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) & ~CEU_CEIER_CPEIE);
- ceu_write(pcdev, CETCR, ~ceu_read(pcdev, CETCR) & CEU_CETCR_MAGIC);
- ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) | CEU_CEIER_CPEIE);
+ ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) & ~CEU_CEIER_MASK);
+ status = ceu_read(pcdev, CETCR);
+ ceu_write(pcdev, CETCR, ~status & CEU_CETCR_MAGIC);
+ ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) | CEU_CEIER_MASK);
ceu_write(pcdev, CAPCR, ceu_read(pcdev, CAPCR) & ~CEU_CAPCR_CTNCP);
ceu_write(pcdev, CETCR, CEU_CETCR_MAGIC ^ CEU_CETCR_IGRW);
+ /*
+ * When a VBP interrupt occurs, a capture end interrupt does not occur
+ * and the image of that frame is not captured correctly. So, soft reset
+ * is needed here.
+ */
+ if (status & CEU_CEIER_VBP) {
+ sh_mobile_ceu_soft_reset(pcdev);
+ ret = -EIO;
+ }
+
if (!pcdev->active)
- return;
+ return ret;
+
+ if (V4L2_FIELD_INTERLACED_BT == pcdev->field) {
+ top1 = CDBYR;
+ top2 = CDBCR;
+ bottom1 = CDAYR;
+ bottom2 = CDACR;
+ } else {
+ top1 = CDAYR;
+ top2 = CDACR;
+ bottom1 = CDBYR;
+ bottom2 = CDBCR;
+ }
phys_addr_top = videobuf_to_dma_contig(pcdev->active);
- ceu_write(pcdev, CDAYR, phys_addr_top);
- if (pcdev->is_interlaced) {
+ ceu_write(pcdev, top1, phys_addr_top);
+ if (V4L2_FIELD_NONE != pcdev->field) {
phys_addr_bottom = phys_addr_top + icd->user_width;
- ceu_write(pcdev, CDBYR, phys_addr_bottom);
+ ceu_write(pcdev, bottom1, phys_addr_bottom);
}
- switch (icd->current_fmt->fourcc) {
+ switch (icd->current_fmt->host_fmt->fourcc) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV21:
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV61:
phys_addr_top += icd->user_width *
icd->user_height;
- ceu_write(pcdev, CDACR, phys_addr_top);
- if (pcdev->is_interlaced) {
- phys_addr_bottom = phys_addr_top +
- icd->user_width;
- ceu_write(pcdev, CDBCR, phys_addr_bottom);
+ ceu_write(pcdev, top2, phys_addr_top);
+ if (V4L2_FIELD_NONE != pcdev->field) {
+ phys_addr_bottom = phys_addr_top + icd->user_width;
+ ceu_write(pcdev, bottom2, phys_addr_bottom);
}
}
pcdev->active->state = VIDEOBUF_ACTIVE;
ceu_write(pcdev, CAPSR, 0x1); /* start capture */
+
+ return ret;
}
static int sh_mobile_ceu_videobuf_prepare(struct videobuf_queue *vq,
{
struct soc_camera_device *icd = vq->priv_data;
struct sh_mobile_ceu_buffer *buf;
+ int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width,
+ icd->current_fmt->host_fmt);
int ret;
+ if (bytes_per_line < 0)
+ return bytes_per_line;
+
buf = container_of(vb, struct sh_mobile_ceu_buffer, vb);
dev_dbg(icd->dev.parent, "%s (vb=0x%p) 0x%08lx %zd\n", __func__,
WARN_ON(!list_empty(&vb->queue));
#ifdef DEBUG
- /* This can be useful if you want to see if we actually fill
- * the buffer with something */
+ /*
+ * This can be useful if you want to see if we actually fill
+ * the buffer with something
+ */
memset((void *)vb->baddr, 0xaa, vb->bsize);
#endif
BUG_ON(NULL == icd->current_fmt);
- 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 = vb->height * bytes_per_line;
if (0 != vb->baddr && vb->bsize < vb->size) {
ret = -EINVAL;
goto out;
list_add_tail(&vb->queue, &pcdev->capture);
if (!pcdev->active) {
+ /*
+ * Because there were no active buffer at this moment,
+ * we are not interested in the return value of
+ * sh_mobile_ceu_capture here.
+ */
pcdev->active = vb;
sh_mobile_ceu_capture(pcdev);
}
else
pcdev->active = NULL;
- sh_mobile_ceu_capture(pcdev);
-
- vb->state = VIDEOBUF_DONE;
+ vb->state = (sh_mobile_ceu_capture(pcdev) < 0) ?
+ VIDEOBUF_ERROR : VIDEOBUF_DONE;
do_gettimeofday(&vb->ts);
vb->field_count++;
wake_up(&vb->done);
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct sh_mobile_ceu_dev *pcdev = ici->priv;
+ int ret;
if (pcdev->icd)
return -EBUSY;
"SuperH Mobile CEU driver attached to camera %d\n",
icd->devnum);
- clk_enable(pcdev->clk);
-
- ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
- while (ceu_read(pcdev, CSTSR) & 1)
- msleep(1);
+ pm_runtime_get_sync(ici->v4l2_dev.dev);
- pcdev->icd = icd;
+ ret = sh_mobile_ceu_soft_reset(pcdev);
+ if (!ret)
+ pcdev->icd = icd;
- return 0;
+ return ret;
}
/* Called with .video_lock held */
/* disable capture, disable interrupts */
ceu_write(pcdev, CEIER, 0);
- ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
+ sh_mobile_ceu_soft_reset(pcdev);
/* make sure active buffer is canceled */
spin_lock_irqsave(&pcdev->lock, flags);
}
spin_unlock_irqrestore(&pcdev->lock, flags);
- clk_disable(pcdev->clk);
+ pm_runtime_put_sync(ici->v4l2_dev.dev);
dev_info(icd->dev.parent,
"SuperH Mobile CEU driver detached from camera %d\n",
in_width *= 2;
left_offset *= 2;
}
- width = cdwdr_width = out_width;
+ width = out_width;
+ cdwdr_width = out_width;
} else {
- unsigned int w_factor = (icd->current_fmt->depth + 7) >> 3;
+ int bytes_per_line = soc_mbus_bytes_per_line(out_width,
+ icd->current_fmt->host_fmt);
+ unsigned int w_factor;
- width = out_width * w_factor / 2;
+ width = out_width;
- if (!pcdev->is_16bit)
- w_factor *= 2;
+ switch (icd->current_fmt->host_fmt->packing) {
+ case SOC_MBUS_PACKING_2X8_PADHI:
+ w_factor = 2;
+ break;
+ default:
+ w_factor = 1;
+ }
- in_width = rect->width * w_factor / 2;
- left_offset = left_offset * w_factor / 2;
+ in_width = rect->width * w_factor;
+ left_offset = left_offset * w_factor;
- cdwdr_width = width * 2;
+ if (bytes_per_line < 0)
+ cdwdr_width = out_width;
+ else
+ cdwdr_width = bytes_per_line;
}
height = out_height;
in_height = rect->height;
- if (pcdev->is_interlaced) {
+ if (V4L2_FIELD_NONE != pcdev->field) {
height /= 2;
in_height /= 2;
top_offset /= 2;
if (!common_flags)
return -EINVAL;
+ /* Make choises, based on platform preferences */
+ if ((common_flags & SOCAM_HSYNC_ACTIVE_HIGH) &&
+ (common_flags & SOCAM_HSYNC_ACTIVE_LOW)) {
+ if (pcdev->pdata->flags & SH_CEU_FLAG_HSYNC_LOW)
+ 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->pdata->flags & SH_CEU_FLAG_VSYNC_LOW)
+ common_flags &= ~SOCAM_VSYNC_ACTIVE_HIGH;
+ else
+ common_flags &= ~SOCAM_VSYNC_ACTIVE_LOW;
+ }
+
ret = icd->ops->set_bus_param(icd, common_flags);
if (ret < 0)
return ret;
value = 0x00000010; /* data fetch by default */
yuv_lineskip = 0;
- switch (icd->current_fmt->fourcc) {
+ switch (icd->current_fmt->host_fmt->fourcc) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV21:
yuv_lineskip = 1; /* skip for NV12/21, no skip for NV16/61 */
/* fall-through */
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV61:
- switch (cam->camera_fmt->fourcc) {
- case V4L2_PIX_FMT_UYVY:
+ switch (cam->code) {
+ case V4L2_MBUS_FMT_YUYV8_2X8_BE:
value = 0x00000000; /* Cb0, Y0, Cr0, Y1 */
break;
- case V4L2_PIX_FMT_VYUY:
+ case V4L2_MBUS_FMT_YVYU8_2X8_BE:
value = 0x00000100; /* Cr0, Y0, Cb0, Y1 */
break;
- case V4L2_PIX_FMT_YUYV:
+ case V4L2_MBUS_FMT_YUYV8_2X8_LE:
value = 0x00000200; /* Y0, Cb0, Y1, Cr0 */
break;
- case V4L2_PIX_FMT_YVYU:
+ case V4L2_MBUS_FMT_YVYU8_2X8_LE:
value = 0x00000300; /* Y0, Cr0, Y1, Cb0 */
break;
default:
}
}
- if (icd->current_fmt->fourcc == V4L2_PIX_FMT_NV21 ||
- icd->current_fmt->fourcc == V4L2_PIX_FMT_NV61)
+ if (icd->current_fmt->host_fmt->fourcc == V4L2_PIX_FMT_NV21 ||
+ icd->current_fmt->host_fmt->fourcc == V4L2_PIX_FMT_NV61)
value ^= 0x00000100; /* swap U, V to change from NV1x->NVx1 */
value |= common_flags & SOCAM_VSYNC_ACTIVE_LOW ? 1 << 1 : 0;
ceu_write(pcdev, CAMCR, value);
ceu_write(pcdev, CAPCR, 0x00300000);
- ceu_write(pcdev, CAIFR, pcdev->is_interlaced ? 0x101 : 0);
+
+ switch (pcdev->field) {
+ case V4L2_FIELD_INTERLACED_TB:
+ value = 0x101;
+ break;
+ case V4L2_FIELD_INTERLACED_BT:
+ value = 0x102;
+ break;
+ default:
+ value = 0;
+ break;
+ }
+ ceu_write(pcdev, CAIFR, value);
sh_mobile_ceu_set_rect(icd, icd->user_width, icd->user_height);
mdelay(1);
ceu_write(pcdev, CFLCR, pcdev->cflcr);
- /* A few words about byte order (observed in Big Endian mode)
+ /*
+ * A few words about byte order (observed in Big Endian mode)
*
* In data fetch mode bytes are received in chunks of 8 bytes.
* D0, D1, D2, D3, D4, D5, D6, D7 (D0 received first)
return 0;
}
-static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd)
+static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd,
+ unsigned char buswidth)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct sh_mobile_ceu_dev *pcdev = ici->priv;
camera_flags = icd->ops->query_bus_param(icd);
common_flags = soc_camera_bus_param_compatible(camera_flags,
make_bus_param(pcdev));
- if (!common_flags)
+ if (!common_flags || buswidth > 16 ||
+ (buswidth > 8 && !(common_flags & SOCAM_DATAWIDTH_16)))
return -EINVAL;
return 0;
}
-static const struct soc_camera_data_format sh_mobile_ceu_formats[] = {
- {
- .name = "NV12",
- .depth = 12,
- .fourcc = V4L2_PIX_FMT_NV12,
- .colorspace = V4L2_COLORSPACE_JPEG,
- },
- {
- .name = "NV21",
- .depth = 12,
- .fourcc = V4L2_PIX_FMT_NV21,
- .colorspace = V4L2_COLORSPACE_JPEG,
- },
+static const struct soc_mbus_pixelfmt sh_mobile_ceu_formats[] = {
{
- .name = "NV16",
- .depth = 16,
- .fourcc = V4L2_PIX_FMT_NV16,
- .colorspace = V4L2_COLORSPACE_JPEG,
- },
- {
- .name = "NV61",
- .depth = 16,
- .fourcc = V4L2_PIX_FMT_NV61,
- .colorspace = V4L2_COLORSPACE_JPEG,
+ .fourcc = V4L2_PIX_FMT_NV12,
+ .name = "NV12",
+ .bits_per_sample = 12,
+ .packing = SOC_MBUS_PACKING_NONE,
+ .order = SOC_MBUS_ORDER_LE,
+ }, {
+ .fourcc = V4L2_PIX_FMT_NV21,
+ .name = "NV21",
+ .bits_per_sample = 12,
+ .packing = SOC_MBUS_PACKING_NONE,
+ .order = SOC_MBUS_ORDER_LE,
+ }, {
+ .fourcc = V4L2_PIX_FMT_NV16,
+ .name = "NV16",
+ .bits_per_sample = 16,
+ .packing = SOC_MBUS_PACKING_NONE,
+ .order = SOC_MBUS_ORDER_LE,
+ }, {
+ .fourcc = V4L2_PIX_FMT_NV61,
+ .name = "NV61",
+ .bits_per_sample = 16,
+ .packing = SOC_MBUS_PACKING_NONE,
+ .order = SOC_MBUS_ORDER_LE,
},
};
+/* This will be corrected as we get more formats */
+static bool sh_mobile_ceu_packing_supported(const struct soc_mbus_pixelfmt *fmt)
+{
+ return fmt->packing == SOC_MBUS_PACKING_NONE ||
+ (fmt->bits_per_sample == 8 &&
+ fmt->packing == SOC_MBUS_PACKING_2X8_PADHI) ||
+ (fmt->bits_per_sample > 8 &&
+ fmt->packing == SOC_MBUS_PACKING_EXTEND16);
+}
+
static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, int idx,
struct soc_camera_format_xlate *xlate)
{
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct device *dev = icd->dev.parent;
int ret, k, n;
int formats = 0;
struct sh_mobile_ceu_cam *cam;
+ enum v4l2_mbus_pixelcode code;
+ const struct soc_mbus_pixelfmt *fmt;
+
+ ret = v4l2_subdev_call(sd, video, enum_mbus_fmt, idx, &code);
+ if (ret < 0)
+ /* No more formats */
+ return 0;
+
+ fmt = soc_mbus_get_fmtdesc(code);
+ if (!fmt) {
+ dev_err(icd->dev.parent,
+ "Invalid format code #%d: %d\n", idx, code);
+ return -EINVAL;
+ }
- ret = sh_mobile_ceu_try_bus_param(icd);
+ ret = sh_mobile_ceu_try_bus_param(icd, fmt->bits_per_sample);
if (ret < 0)
return 0;
if (!idx)
cam->extra_fmt = NULL;
- switch (icd->formats[idx].fourcc) {
- case V4L2_PIX_FMT_UYVY:
- case V4L2_PIX_FMT_VYUY:
- case V4L2_PIX_FMT_YUYV:
- case V4L2_PIX_FMT_YVYU:
+ switch (code) {
+ case V4L2_MBUS_FMT_YUYV8_2X8_BE:
+ case V4L2_MBUS_FMT_YVYU8_2X8_BE:
+ case V4L2_MBUS_FMT_YUYV8_2X8_LE:
+ case V4L2_MBUS_FMT_YVYU8_2X8_LE:
if (cam->extra_fmt)
- goto add_single_format;
+ break;
/*
* Our case is simple so far: for any of the above four camera
* the host_priv pointer and check whether the format you're
* going to add now is already there.
*/
- cam->extra_fmt = (void *)sh_mobile_ceu_formats;
+ cam->extra_fmt = sh_mobile_ceu_formats;
n = ARRAY_SIZE(sh_mobile_ceu_formats);
formats += n;
for (k = 0; xlate && k < n; k++) {
- xlate->host_fmt = &sh_mobile_ceu_formats[k];
- xlate->cam_fmt = icd->formats + idx;
- xlate->buswidth = icd->formats[idx].depth;
+ xlate->host_fmt = &sh_mobile_ceu_formats[k];
+ xlate->code = code;
xlate++;
- dev_dbg(dev, "Providing format %s using %s\n",
- sh_mobile_ceu_formats[k].name,
- icd->formats[idx].name);
+ dev_dbg(dev, "Providing format %s using code %d\n",
+ sh_mobile_ceu_formats[k].name, code);
}
+ break;
default:
-add_single_format:
- /* Generic pass-through */
- formats++;
- if (xlate) {
- xlate->host_fmt = icd->formats + idx;
- xlate->cam_fmt = icd->formats + idx;
- xlate->buswidth = icd->formats[idx].depth;
- xlate++;
- dev_dbg(dev,
- "Providing format %s in pass-through mode\n",
- icd->formats[idx].name);
- }
+ if (!sh_mobile_ceu_packing_supported(fmt))
+ return 0;
+ }
+
+ /* Generic pass-through */
+ formats++;
+ if (xlate) {
+ xlate->host_fmt = fmt;
+ xlate->code = code;
+ xlate++;
+ dev_dbg(dev, "Providing format %s in pass-through mode\n",
+ xlate->host_fmt->name);
}
return formats;
static int get_camera_scales(struct v4l2_subdev *sd, struct v4l2_rect *rect,
unsigned int *scale_h, unsigned int *scale_v)
{
- struct v4l2_format f;
+ struct v4l2_mbus_framefmt mf;
int ret;
- f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- ret = v4l2_subdev_call(sd, video, g_fmt, &f);
+ ret = v4l2_subdev_call(sd, video, g_mbus_fmt, &mf);
if (ret < 0)
return ret;
- *scale_h = calc_generic_scale(rect->width, f.fmt.pix.width);
- *scale_v = calc_generic_scale(rect->height, f.fmt.pix.height);
+ *scale_h = calc_generic_scale(rect->width, mf.width);
+ *scale_v = calc_generic_scale(rect->height, mf.height);
return 0;
}
if (!ceu_rect->width) {
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct device *dev = icd->dev.parent;
- struct v4l2_format f;
- struct v4l2_pix_format *pix = &f.fmt.pix;
+ struct v4l2_mbus_framefmt mf;
int ret;
/* First time */
- f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- ret = v4l2_subdev_call(sd, video, g_fmt, &f);
+ ret = v4l2_subdev_call(sd, video, g_mbus_fmt, &mf);
if (ret < 0)
return ret;
- dev_geo(dev, "camera fmt %ux%u\n", pix->width, pix->height);
+ dev_geo(dev, "camera fmt %ux%u\n", mf.width, mf.height);
- if (pix->width > 2560) {
+ if (mf.width > 2560) {
ceu_rect->width = 2560;
- ceu_rect->left = (pix->width - 2560) / 2;
+ ceu_rect->left = (mf.width - 2560) / 2;
} else {
- ceu_rect->width = pix->width;
+ ceu_rect->width = mf.width;
ceu_rect->left = 0;
}
- if (pix->height > 1920) {
+ if (mf.height > 1920) {
ceu_rect->height = 1920;
- ceu_rect->top = (pix->height - 1920) / 2;
+ ceu_rect->top = (mf.height - 1920) / 2;
} else {
- ceu_rect->height = pix->height;
+ ceu_rect->height = mf.height;
ceu_rect->top = 0;
}
return 0;
}
-static int client_s_fmt(struct soc_camera_device *icd, struct v4l2_format *f,
- bool ceu_can_scale)
+static int client_s_fmt(struct soc_camera_device *icd,
+ struct v4l2_mbus_framefmt *mf, bool ceu_can_scale)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct device *dev = icd->dev.parent;
- struct v4l2_pix_format *pix = &f->fmt.pix;
- unsigned int width = pix->width, height = pix->height, tmp_w, tmp_h;
+ unsigned int width = mf->width, height = mf->height, tmp_w, tmp_h;
unsigned int max_width, max_height;
struct v4l2_cropcap cap;
int ret;
max_width = min(cap.bounds.width, 2560);
max_height = min(cap.bounds.height, 1920);
- ret = v4l2_subdev_call(sd, video, s_fmt, f);
+ ret = v4l2_subdev_call(sd, video, s_mbus_fmt, mf);
if (ret < 0)
return ret;
- dev_geo(dev, "camera scaled to %ux%u\n", pix->width, pix->height);
+ dev_geo(dev, "camera scaled to %ux%u\n", mf->width, mf->height);
- if ((width == pix->width && height == pix->height) || !ceu_can_scale)
+ if ((width == mf->width && height == mf->height) || !ceu_can_scale)
return 0;
/* Camera set a format, but geometry is not precise, try to improve */
- tmp_w = pix->width;
- tmp_h = pix->height;
+ tmp_w = mf->width;
+ tmp_h = mf->height;
/* width <= max_width && height <= max_height - guaranteed by try_fmt */
while ((width > tmp_w || height > tmp_h) &&
tmp_w < max_width && tmp_h < max_height) {
tmp_w = min(2 * tmp_w, max_width);
tmp_h = min(2 * tmp_h, max_height);
- pix->width = tmp_w;
- pix->height = tmp_h;
- ret = v4l2_subdev_call(sd, video, s_fmt, f);
+ mf->width = tmp_w;
+ mf->height = tmp_h;
+ ret = v4l2_subdev_call(sd, video, s_mbus_fmt, mf);
dev_geo(dev, "Camera scaled to %ux%u\n",
- pix->width, pix->height);
+ mf->width, mf->height);
if (ret < 0) {
/* This shouldn't happen */
dev_err(dev, "Client failed to set format: %d\n", ret);
*/
static int client_scale(struct soc_camera_device *icd, struct v4l2_rect *rect,
struct v4l2_rect *sub_rect, struct v4l2_rect *ceu_rect,
- struct v4l2_format *f, bool ceu_can_scale)
+ struct v4l2_mbus_framefmt *mf, bool ceu_can_scale)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct sh_mobile_ceu_cam *cam = icd->host_priv;
struct device *dev = icd->dev.parent;
- struct v4l2_format f_tmp = *f;
- struct v4l2_pix_format *pix_tmp = &f_tmp.fmt.pix;
+ struct v4l2_mbus_framefmt mf_tmp = *mf;
unsigned int scale_h, scale_v;
int ret;
/* 5. Apply iterative camera S_FMT for camera user window. */
- ret = client_s_fmt(icd, &f_tmp, ceu_can_scale);
+ ret = client_s_fmt(icd, &mf_tmp, ceu_can_scale);
if (ret < 0)
return ret;
dev_geo(dev, "5: camera scaled to %ux%u\n",
- pix_tmp->width, pix_tmp->height);
+ mf_tmp.width, mf_tmp.height);
/* 6. Retrieve camera output window (g_fmt) */
- /* unneeded - it is already in "f_tmp" */
+ /* unneeded - it is already in "mf_tmp" */
/* 7. Calculate new camera scales. */
ret = get_camera_scales(sd, rect, &scale_h, &scale_v);
dev_geo(dev, "7: camera scales %u:%u\n", scale_h, scale_v);
- cam->cam_width = pix_tmp->width;
- cam->cam_height = pix_tmp->height;
- f->fmt.pix.width = pix_tmp->width;
- f->fmt.pix.height = pix_tmp->height;
+ cam->cam_width = mf_tmp.width;
+ cam->cam_height = mf_tmp.height;
+ mf->width = mf_tmp.width;
+ mf->height = mf_tmp.height;
+ mf->colorspace = mf_tmp.colorspace;
/*
* 8. Calculate new CEU crop - apply camera scales to previously
width_in = scale_up(cam->ceu_rect.width, *scale_h);
height_in = scale_up(cam->ceu_rect.height, *scale_v);
- *scale_h = calc_generic_scale(cam->ceu_rect.width, icd->user_width);
- *scale_v = calc_generic_scale(cam->ceu_rect.height, icd->user_height);
+ *scale_h = calc_generic_scale(width_in, icd->user_width);
+ *scale_v = calc_generic_scale(height_in, icd->user_height);
return 0;
}
struct v4l2_rect *cam_rect = &cam_crop.c, *ceu_rect = &cam->ceu_rect;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct device *dev = icd->dev.parent;
- struct v4l2_format f;
- struct v4l2_pix_format *pix = &f.fmt.pix;
+ struct v4l2_mbus_framefmt mf;
unsigned int scale_comb_h, scale_comb_v, scale_ceu_h, scale_ceu_v,
out_width, out_height;
u32 capsr, cflcr;
* 5. Using actual input window and calculated combined scales calculate
* camera target output window.
*/
- pix->width = scale_down(cam_rect->width, scale_comb_h);
- pix->height = scale_down(cam_rect->height, scale_comb_v);
+ mf.width = scale_down(cam_rect->width, scale_comb_h);
+ mf.height = scale_down(cam_rect->height, scale_comb_v);
- dev_geo(dev, "5: camera target %ux%u\n", pix->width, pix->height);
+ dev_geo(dev, "5: camera target %ux%u\n", mf.width, mf.height);
/* 6. - 9. */
- pix->pixelformat = cam->camera_fmt->fourcc;
- pix->colorspace = cam->camera_fmt->colorspace;
+ mf.code = cam->code;
+ mf.field = pcdev->field;
capsr = capture_save_reset(pcdev);
dev_dbg(dev, "CAPSR 0x%x, CFLCR 0x%x\n", capsr, pcdev->cflcr);
/* Make relative to camera rectangle */
- rect->left -= cam_rect->left;
- rect->top -= cam_rect->top;
+ rect->left -= cam_rect->left;
+ rect->top -= cam_rect->top;
- f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- ret = client_scale(icd, cam_rect, rect, ceu_rect, &f,
- pcdev->image_mode && !pcdev->is_interlaced);
+ ret = client_scale(icd, cam_rect, rect, ceu_rect, &mf,
+ pcdev->image_mode &&
+ V4L2_FIELD_NONE == pcdev->field);
dev_geo(dev, "6-9: %d\n", ret);
struct sh_mobile_ceu_dev *pcdev = ici->priv;
struct sh_mobile_ceu_cam *cam = icd->host_priv;
struct v4l2_pix_format *pix = &f->fmt.pix;
- struct v4l2_format cam_f = *f;
- struct v4l2_pix_format *cam_pix = &cam_f.fmt.pix;
+ struct v4l2_mbus_framefmt mf;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct device *dev = icd->dev.parent;
__u32 pixfmt = pix->pixelformat;
unsigned int scale_cam_h, scale_cam_v;
u16 scale_v, scale_h;
int ret;
- bool is_interlaced, image_mode;
+ bool image_mode;
+ enum v4l2_field field;
switch (pix->field) {
- case V4L2_FIELD_INTERLACED:
- is_interlaced = true;
- break;
- case V4L2_FIELD_ANY:
default:
pix->field = V4L2_FIELD_NONE;
/* fall-through */
+ case V4L2_FIELD_INTERLACED_TB:
+ case V4L2_FIELD_INTERLACED_BT:
case V4L2_FIELD_NONE:
- is_interlaced = false;
+ field = pix->field;
+ break;
+ case V4L2_FIELD_INTERLACED:
+ field = V4L2_FIELD_INTERLACED_TB;
break;
}
* 4. Calculate camera output window by applying combined scales to real
* input window.
*/
- cam_pix->width = scale_down(cam_rect->width, scale_h);
- cam_pix->height = scale_down(cam_rect->height, scale_v);
- cam_pix->pixelformat = xlate->cam_fmt->fourcc;
+ mf.width = scale_down(cam_rect->width, scale_h);
+ mf.height = scale_down(cam_rect->height, scale_v);
+ mf.field = pix->field;
+ mf.colorspace = pix->colorspace;
+ mf.code = xlate->code;
switch (pixfmt) {
case V4L2_PIX_FMT_NV12:
image_mode = false;
}
- dev_geo(dev, "4: camera output %ux%u\n",
- cam_pix->width, cam_pix->height);
+ dev_geo(dev, "4: camera output %ux%u\n", mf.width, mf.height);
/* 5. - 9. */
- ret = client_scale(icd, cam_rect, &cam_subrect, &ceu_rect, &cam_f,
- image_mode && !is_interlaced);
+ ret = client_scale(icd, cam_rect, &cam_subrect, &ceu_rect, &mf,
+ image_mode && V4L2_FIELD_NONE == field);
dev_geo(dev, "5-9: client scale %d\n", ret);
/* Done with the camera. Now see if we can improve the result */
dev_dbg(dev, "Camera %d fmt %ux%u, requested %ux%u\n",
- ret, cam_pix->width, cam_pix->height, pix->width, pix->height);
+ ret, mf.width, mf.height, pix->width, pix->height);
if (ret < 0)
return ret;
+ if (mf.code != xlate->code)
+ return -EINVAL;
+
/* 10. Use CEU scaling to scale to the requested user window. */
/* We cannot scale up */
- if (pix->width > cam_pix->width)
- pix->width = cam_pix->width;
+ if (pix->width > mf.width)
+ pix->width = mf.width;
if (pix->width > ceu_rect.width)
pix->width = ceu_rect.width;
- if (pix->height > cam_pix->height)
- pix->height = cam_pix->height;
+ if (pix->height > mf.height)
+ pix->height = mf.height;
if (pix->height > ceu_rect.height)
pix->height = ceu_rect.height;
- /* Let's rock: scale pix->{width x height} down to width x height */
- scale_h = calc_scale(ceu_rect.width, &pix->width);
- scale_v = calc_scale(ceu_rect.height, &pix->height);
+ pix->colorspace = mf.colorspace;
+
+ if (image_mode) {
+ /* Scale pix->{width x height} down to width x height */
+ scale_h = calc_scale(ceu_rect.width, &pix->width);
+ scale_v = calc_scale(ceu_rect.height, &pix->height);
+
+ pcdev->cflcr = scale_h | (scale_v << 16);
+ } else {
+ pix->width = ceu_rect.width;
+ pix->height = ceu_rect.height;
+ scale_h = scale_v = 0;
+ pcdev->cflcr = 0;
+ }
dev_geo(dev, "10: W: %u : 0x%x = %u, H: %u : 0x%x = %u\n",
ceu_rect.width, scale_h, pix->width,
ceu_rect.height, scale_v, pix->height);
- pcdev->cflcr = scale_h | (scale_v << 16);
-
- icd->buswidth = xlate->buswidth;
- icd->current_fmt = xlate->host_fmt;
- cam->camera_fmt = xlate->cam_fmt;
- cam->ceu_rect = ceu_rect;
+ cam->code = xlate->code;
+ cam->ceu_rect = ceu_rect;
+ icd->current_fmt = xlate;
- pcdev->is_interlaced = is_interlaced;
+ pcdev->field = field;
pcdev->image_mode = image_mode;
return 0;
const struct soc_camera_format_xlate *xlate;
struct v4l2_pix_format *pix = &f->fmt.pix;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+ struct v4l2_mbus_framefmt mf;
__u32 pixfmt = pix->pixelformat;
int width, height;
int ret;
width = pix->width;
height = pix->height;
- pix->bytesperline = pix->width *
- DIV_ROUND_UP(xlate->host_fmt->depth, 8);
- pix->sizeimage = pix->height * pix->bytesperline;
-
- pix->pixelformat = xlate->cam_fmt->fourcc;
+ pix->bytesperline = soc_mbus_bytes_per_line(width, xlate->host_fmt);
+ if (pix->bytesperline < 0)
+ return pix->bytesperline;
+ pix->sizeimage = height * pix->bytesperline;
/* limit to sensor capabilities */
- ret = v4l2_subdev_call(sd, video, try_fmt, f);
- pix->pixelformat = pixfmt;
+ mf.width = pix->width;
+ mf.height = pix->height;
+ mf.field = pix->field;
+ mf.code = xlate->code;
+ mf.colorspace = pix->colorspace;
+
+ 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;
+
switch (pixfmt) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV21:
/* FIXME: check against rect_max after converting soc-camera */
/* We can scale precisely, need a bigger image from camera */
if (pix->width < width || pix->height < height) {
- int tmp_w = pix->width, tmp_h = pix->height;
- pix->width = 2560;
- pix->height = 1920;
- ret = v4l2_subdev_call(sd, video, try_fmt, f);
+ /*
+ * We presume, the sensor behaves sanely, i.e., if
+ * requested a bigger rectangle, it will not return a
+ * smaller one.
+ */
+ mf.width = 2560;
+ mf.height = 1920;
+ ret = v4l2_subdev_call(sd, video, try_mbus_fmt, &mf);
if (ret < 0) {
/* Shouldn't actually happen... */
dev_err(icd->dev.parent,
- "FIXME: try_fmt() returned %d\n", ret);
- pix->width = tmp_w;
- pix->height = tmp_h;
+ "FIXME: client try_fmt() = %d\n", ret);
+ return ret;
}
}
- if (pix->width > width)
+ /* We will scale exactly */
+ if (mf.width > width)
pix->width = width;
- if (pix->height > height)
+ if (mf.height > height)
pix->height = height;
}
{
int i;
- /* This is for locking debugging only. I removed spinlocks and now I
+ /*
+ * This is for locking debugging only. I removed spinlocks and now I
* check whether .prepare is ever called on a linked buffer, or whether
* a dma IRQ can occur for an in-work or unlinked buffer. Until now
- * it hadn't triggered */
+ * it hadn't triggered
+ */
for (i = 0; i < p->count; i++) {
struct sh_mobile_ceu_buffer *buf;
&sh_mobile_ceu_videobuf_ops,
icd->dev.parent, &pcdev->lock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
- pcdev->is_interlaced ?
- V4L2_FIELD_INTERLACED : V4L2_FIELD_NONE,
+ pcdev->field,
sizeof(struct sh_mobile_ceu_buffer),
icd);
}
+static int sh_mobile_ceu_get_parm(struct soc_camera_device *icd,
+ struct v4l2_streamparm *parm)
+{
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+
+ return v4l2_subdev_call(sd, video, g_parm, parm);
+}
+
+static int sh_mobile_ceu_set_parm(struct soc_camera_device *icd,
+ struct v4l2_streamparm *parm)
+{
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+
+ return v4l2_subdev_call(sd, video, s_parm, parm);
+}
+
static int sh_mobile_ceu_get_ctrl(struct soc_camera_device *icd,
struct v4l2_control *ctrl)
{
switch (ctrl->id) {
case V4L2_CID_SHARPNESS:
- switch (icd->current_fmt->fourcc) {
+ switch (icd->current_fmt->host_fmt->fourcc) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV21:
case V4L2_PIX_FMT_NV16:
.try_fmt = sh_mobile_ceu_try_fmt,
.set_ctrl = sh_mobile_ceu_set_ctrl,
.get_ctrl = sh_mobile_ceu_get_ctrl,
+ .set_parm = sh_mobile_ceu_set_parm,
+ .get_parm = sh_mobile_ceu_get_parm,
.reqbufs = sh_mobile_ceu_reqbufs,
.poll = sh_mobile_ceu_poll,
.querycap = sh_mobile_ceu_querycap,
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
- if (!res || !irq) {
+ if (!res || (int)irq <= 0) {
dev_err(&pdev->dev, "Not enough CEU platform resources.\n");
err = -ENODEV;
goto exit;
err = soc_camera_host_register(&pcdev->ici);
if (err)
- goto exit_free_irq;
+ goto exit_free_clk;
return 0;
-exit_free_irq:
+exit_free_clk:
+ pm_runtime_disable(&pdev->dev);
free_irq(pcdev->irq, pcdev);
exit_release_mem:
if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
struct sh_mobile_ceu_dev, ici);
soc_camera_host_unregister(soc_host);
+ pm_runtime_disable(&pdev->dev);
free_irq(pcdev->irq, pcdev);
if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
dma_release_declared_memory(&pdev->dev);
return 0;
}
-static struct dev_pm_ops sh_mobile_ceu_dev_pm_ops = {
+static const struct dev_pm_ops sh_mobile_ceu_dev_pm_ops = {
.runtime_suspend = sh_mobile_ceu_runtime_nop,
.runtime_resume = sh_mobile_ceu_runtime_nop,
};
.pm = &sh_mobile_ceu_dev_pm_ops,
},
.probe = sh_mobile_ceu_probe,
- .remove = __exit_p(sh_mobile_ceu_remove),
+ .remove = __devexit_p(sh_mobile_ceu_remove),
};
static int __init sh_mobile_ceu_init(void)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff