#define MAX_VIDEO_MEM 16
+struct mx2_prp_cfg {
+ int channel;
+ u32 in_fmt;
+ u32 out_fmt;
+ u32 src_pixel;
+ u32 ch1_pixel;
+ u32 irq_flags;
+};
+
+/* prp configuration for a client-host fmt pair */
+struct mx2_fmt_cfg {
+ enum v4l2_mbus_pixelcode in_fmt;
+ u32 out_fmt;
+ struct mx2_prp_cfg cfg;
+};
+
struct mx2_camera_dev {
struct device *dev;
struct soc_camera_host soc_host;
void *discard_buffer;
dma_addr_t discard_buffer_dma;
size_t discard_size;
+ struct mx2_fmt_cfg *emma_prp;
};
/* buffer for one video frame */
int bufnum;
};
+static struct mx2_fmt_cfg mx27_emma_prp_table[] = {
+ /*
+ * This is a generic configuration which is valid for most
+ * prp input-output format combinations.
+ * We set the incomming and outgoing pixelformat to a
+ * 16 Bit wide format and adjust the bytesperline
+ * accordingly. With this configuration the inputdata
+ * will not be changed by the emma and could be any type
+ * of 16 Bit Pixelformat.
+ */
+ {
+ .in_fmt = 0,
+ .out_fmt = 0,
+ .cfg = {
+ .channel = 1,
+ .in_fmt = PRP_CNTL_DATA_IN_RGB16,
+ .out_fmt = PRP_CNTL_CH1_OUT_RGB16,
+ .src_pixel = 0x2ca00565, /* RGB565 */
+ .ch1_pixel = 0x2ca00565, /* RGB565 */
+ .irq_flags = PRP_INTR_RDERR | PRP_INTR_CH1WERR |
+ PRP_INTR_CH1FC | PRP_INTR_LBOVF,
+ }
+ },
+ {
+ .in_fmt = V4L2_MBUS_FMT_YUYV8_2X8,
+ .out_fmt = V4L2_PIX_FMT_YUV420,
+ .cfg = {
+ .channel = 2,
+ .in_fmt = PRP_CNTL_DATA_IN_YUV422,
+ .out_fmt = PRP_CNTL_CH2_OUT_YUV420,
+ .src_pixel = 0x22000888, /* YUV422 (YUYV) */
+ .irq_flags = PRP_INTR_RDERR | PRP_INTR_CH2WERR |
+ PRP_INTR_CH2FC | PRP_INTR_LBOVF |
+ PRP_INTR_CH2OVF,
+ }
+ },
+};
+
+static struct mx2_fmt_cfg *mx27_emma_prp_get_format(
+ enum v4l2_mbus_pixelcode in_fmt,
+ u32 out_fmt)
+{
+ int i;
+
+ for (i = 1; i < ARRAY_SIZE(mx27_emma_prp_table); i++)
+ if ((mx27_emma_prp_table[i].in_fmt == in_fmt) &&
+ (mx27_emma_prp_table[i].out_fmt == out_fmt)) {
+ return &mx27_emma_prp_table[i];
+ }
+ /* If no match return the most generic configuration */
+ return &mx27_emma_prp_table[0];
+};
+
static void mx2_camera_deactivate(struct mx2_camera_dev *pcdev)
{
unsigned long flags;
struct soc_camera_host *ici =
to_soc_camera_host(icd->parent);
struct mx2_camera_dev *pcdev = ici->priv;
+ struct mx2_fmt_cfg *prp = pcdev->emma_prp;
+ u32 imgsize = pcdev->icd->user_height * pcdev->icd->user_width;
+
+ if (prp->cfg.channel == 1) {
+ writel(pcdev->discard_buffer_dma,
+ pcdev->base_emma + PRP_DEST_RGB1_PTR);
+ writel(pcdev->discard_buffer_dma,
+ pcdev->base_emma + PRP_DEST_RGB2_PTR);
+
+ writel(PRP_CNTL_CH1EN |
+ PRP_CNTL_CSIEN |
+ prp->cfg.in_fmt |
+ prp->cfg.out_fmt |
+ PRP_CNTL_CH1_LEN |
+ PRP_CNTL_CH1BYP |
+ PRP_CNTL_CH1_TSKIP(0) |
+ PRP_CNTL_IN_TSKIP(0),
+ pcdev->base_emma + PRP_CNTL);
+
+ writel((icd->user_width << 16) | icd->user_height,
+ pcdev->base_emma + PRP_SRC_FRAME_SIZE);
+ writel((icd->user_width << 16) | icd->user_height,
+ pcdev->base_emma + PRP_CH1_OUT_IMAGE_SIZE);
+ writel(bytesperline,
+ pcdev->base_emma + PRP_DEST_CH1_LINE_STRIDE);
+ writel(prp->cfg.src_pixel,
+ pcdev->base_emma + PRP_SRC_PIXEL_FORMAT_CNTL);
+ writel(prp->cfg.ch1_pixel,
+ pcdev->base_emma + PRP_CH1_PIXEL_FORMAT_CNTL);
+ } else { /* channel 2 */
+ writel(pcdev->discard_buffer_dma,
+ pcdev->base_emma + PRP_DEST_Y_PTR);
+ writel(pcdev->discard_buffer_dma,
+ pcdev->base_emma + PRP_SOURCE_Y_PTR);
+
+ if (prp->cfg.out_fmt == PRP_CNTL_CH2_OUT_YUV420) {
+ writel(pcdev->discard_buffer_dma + imgsize,
+ pcdev->base_emma + PRP_DEST_CB_PTR);
+ writel(pcdev->discard_buffer_dma + ((5 * imgsize) / 4),
+ pcdev->base_emma + PRP_DEST_CR_PTR);
+ writel(pcdev->discard_buffer_dma + imgsize,
+ pcdev->base_emma + PRP_SOURCE_CB_PTR);
+ writel(pcdev->discard_buffer_dma + ((5 * imgsize) / 4),
+ pcdev->base_emma + PRP_SOURCE_CR_PTR);
+ }
- writel(pcdev->discard_buffer_dma,
- pcdev->base_emma + PRP_DEST_RGB1_PTR);
- writel(pcdev->discard_buffer_dma,
- pcdev->base_emma + PRP_DEST_RGB2_PTR);
-
- /*
- * We only use the EMMA engine to get rid of the broken
- * DMA Engine. No color space consversion at the moment.
- * We set the incomming and outgoing pixelformat to an
- * 16 Bit wide format and adjust the bytesperline
- * accordingly. With this configuration the inputdata
- * will not be changed by the emma and could be any type
- * of 16 Bit Pixelformat.
- */
- writel(PRP_CNTL_CH1EN |
+ writel(PRP_CNTL_CH2EN |
PRP_CNTL_CSIEN |
- PRP_CNTL_DATA_IN_RGB16 |
- PRP_CNTL_CH1_OUT_RGB16 |
- PRP_CNTL_CH1_LEN |
- PRP_CNTL_CH1BYP |
- PRP_CNTL_CH1_TSKIP(0) |
+ prp->cfg.in_fmt |
+ prp->cfg.out_fmt |
+ PRP_CNTL_CH2_LEN |
+ PRP_CNTL_CH2_TSKIP(0) |
PRP_CNTL_IN_TSKIP(0),
pcdev->base_emma + PRP_CNTL);
- writel(((bytesperline >> 1) << 16) | icd->user_height,
+ writel((icd->user_width << 16) | icd->user_height,
pcdev->base_emma + PRP_SRC_FRAME_SIZE);
- writel(((bytesperline >> 1) << 16) | icd->user_height,
- pcdev->base_emma + PRP_CH1_OUT_IMAGE_SIZE);
- writel(bytesperline,
- pcdev->base_emma + PRP_DEST_CH1_LINE_STRIDE);
- writel(0x2ca00565, /* RGB565 */
+
+ writel((icd->user_width << 16) | icd->user_height,
+ pcdev->base_emma + PRP_CH2_OUT_IMAGE_SIZE);
+
+ writel(prp->cfg.src_pixel,
pcdev->base_emma + PRP_SRC_PIXEL_FORMAT_CNTL);
- writel(0x2ca00565, /* RGB565 */
- pcdev->base_emma + PRP_CH1_PIXEL_FORMAT_CNTL);
+
+ }
/* Enable interrupts */
- writel(PRP_INTR_RDERR |
- PRP_INTR_CH1WERR |
- PRP_INTR_CH2WERR |
- PRP_INTR_CH1FC |
- PRP_INTR_CH2FC |
- PRP_INTR_LBOVF |
- PRP_INTR_CH2OVF,
- pcdev->base_emma + PRP_INTR_CNTL);
+ writel(prp->cfg.irq_flags, pcdev->base_emma + PRP_INTR_CNTL);
}
static int mx2_camera_set_bus_param(struct soc_camera_device *icd)
return ret;
}
+static int mx2_camera_get_formats(struct soc_camera_device *icd,
+ unsigned int idx,
+ struct soc_camera_format_xlate *xlate)
+{
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+ const struct soc_mbus_pixelfmt *fmt;
+ struct device *dev = icd->parent;
+ enum v4l2_mbus_pixelcode code;
+ int ret, formats = 0;
+
+ 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(dev, "Invalid format code #%u: %d\n", idx, code);
+ return 0;
+ }
+
+ if (code == V4L2_MBUS_FMT_YUYV8_2X8) {
+ formats++;
+ if (xlate) {
+ /*
+ * CH2 can output YUV420 which is a standard format in
+ * soc_mediabus.c
+ */
+ xlate->host_fmt =
+ soc_mbus_get_fmtdesc(V4L2_MBUS_FMT_YUYV8_1_5X8);
+ xlate->code = code;
+ dev_dbg(dev, "Providing host format %s for sensor code %d\n",
+ xlate->host_fmt->name, code);
+ xlate++;
+ }
+ }
+
+ /* Generic pass-trough */
+ formats++;
+ if (xlate) {
+ xlate->host_fmt = fmt;
+ xlate->code = code;
+ xlate++;
+ }
+ return formats;
+}
+
static int mx2_camera_set_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
+ struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
+ struct mx2_camera_dev *pcdev = ici->priv;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
const struct soc_camera_format_xlate *xlate;
struct v4l2_pix_format *pix = &f->fmt.pix;
pix->colorspace = mf.colorspace;
icd->current_fmt = xlate;
+ if (mx27_camera_emma(pcdev))
+ pcdev->emma_prp = mx27_emma_prp_get_format(xlate->code,
+ xlate->host_fmt->fourcc);
+
return 0;
}
if (mf.field == V4L2_FIELD_ANY)
mf.field = V4L2_FIELD_NONE;
- if (mf.field != V4L2_FIELD_NONE) {
+ /*
+ * Driver supports interlaced images provided they have
+ * both fields so that they can be processed as if they
+ * were progressive.
+ */
+ if (mf.field != V4L2_FIELD_NONE && !V4L2_FIELD_HAS_BOTH(mf.field)) {
dev_err(icd->parent, "Field type %d unsupported.\n",
mf.field);
return -EINVAL;
.remove = mx2_camera_remove_device,
.set_fmt = mx2_camera_set_fmt,
.set_crop = mx2_camera_set_crop,
+ .get_formats = mx2_camera_get_formats,
.try_fmt = mx2_camera_try_fmt,
.init_videobuf = mx2_camera_init_videobuf,
.reqbufs = mx2_camera_reqbufs,
static void mx27_camera_frame_done_emma(struct mx2_camera_dev *pcdev,
int bufnum, int state)
{
+ u32 imgsize = pcdev->icd->user_height * pcdev->icd->user_width;
+ struct mx2_fmt_cfg *prp = pcdev->emma_prp;
struct mx2_buffer *buf;
struct videobuf_buffer *vb;
unsigned long phys;
vb = &buf->vb;
#ifdef DEBUG
phys = videobuf_to_dma_contig(vb);
- if (readl(pcdev->base_emma + PRP_DEST_RGB1_PTR + 4 * bufnum)
- != phys) {
- dev_err(pcdev->dev, "%p != %p\n", phys,
- readl(pcdev->base_emma +
- PRP_DEST_RGB1_PTR +
- 4 * bufnum));
+ if (prp->cfg.channel == 1) {
+ if (readl(pcdev->base_emma + PRP_DEST_RGB1_PTR +
+ 4 * bufnum) != phys) {
+ dev_err(pcdev->dev, "%p != %p\n", phys,
+ readl(pcdev->base_emma +
+ PRP_DEST_RGB1_PTR +
+ 4 * bufnum));
+ }
+ } else {
+ if (readl(pcdev->base_emma + PRP_DEST_Y_PTR -
+ 0x14 * bufnum) != phys) {
+ dev_err(pcdev->dev, "%p != %p\n", phys,
+ readl(pcdev->base_emma +
+ PRP_DEST_Y_PTR -
+ 0x14 * bufnum));
+ }
}
#endif
dev_dbg(pcdev->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__, vb,
}
if (list_empty(&pcdev->capture)) {
- writel(pcdev->discard_buffer_dma, pcdev->base_emma +
- PRP_DEST_RGB1_PTR + 4 * bufnum);
+ if (prp->cfg.channel == 1) {
+ writel(pcdev->discard_buffer_dma, pcdev->base_emma +
+ PRP_DEST_RGB1_PTR + 4 * bufnum);
+ } else {
+ writel(pcdev->discard_buffer_dma, pcdev->base_emma +
+ PRP_DEST_Y_PTR -
+ 0x14 * bufnum);
+ if (prp->out_fmt == V4L2_PIX_FMT_YUV420) {
+ writel(pcdev->discard_buffer_dma + imgsize,
+ pcdev->base_emma + PRP_DEST_CB_PTR -
+ 0x14 * bufnum);
+ writel(pcdev->discard_buffer_dma +
+ ((5 * imgsize) / 4), pcdev->base_emma +
+ PRP_DEST_CR_PTR - 0x14 * bufnum);
+ }
+ }
return;
}
vb->state = VIDEOBUF_ACTIVE;
phys = videobuf_to_dma_contig(vb);
- writel(phys, pcdev->base_emma + PRP_DEST_RGB1_PTR + 4 * bufnum);
+ if (prp->cfg.channel == 1) {
+ writel(phys, pcdev->base_emma + PRP_DEST_RGB1_PTR + 4 * bufnum);
+ } else {
+ writel(phys, pcdev->base_emma +
+ PRP_DEST_Y_PTR - 0x14 * bufnum);
+ if (prp->cfg.out_fmt == PRP_CNTL_CH2_OUT_YUV420) {
+ writel(phys + imgsize, pcdev->base_emma +
+ PRP_DEST_CB_PTR - 0x14 * bufnum);
+ writel(phys + ((5 * imgsize) / 4), pcdev->base_emma +
+ PRP_DEST_CR_PTR - 0x14 * bufnum);
+ }
+ }
}
static irqreturn_t mx27_camera_emma_irq(int irq_emma, void *data)
* the next one.
*/
cntl = readl(pcdev->base_emma + PRP_CNTL);
- writel(cntl & ~PRP_CNTL_CH1EN, pcdev->base_emma + PRP_CNTL);
+ writel(cntl & ~(PRP_CNTL_CH1EN | PRP_CNTL_CH2EN),
+ pcdev->base_emma + PRP_CNTL);
writel(cntl, pcdev->base_emma + PRP_CNTL);
}
- if ((status & (3 << 5)) == (3 << 5)
+ if ((((status & (3 << 5)) == (3 << 5)) ||
+ ((status & (3 << 3)) == (3 << 3)))
&& !list_empty(&pcdev->active_bufs)) {
/*
* Both buffers have triggered, process the one we're expecting
mx27_camera_frame_done_emma(pcdev, buf->bufnum, VIDEOBUF_DONE);
status &= ~(1 << (6 - buf->bufnum)); /* mark processed */
}
- if (status & (1 << 6))
+ if ((status & (1 << 6)) || (status & (1 << 4)))
mx27_camera_frame_done_emma(pcdev, 0, VIDEOBUF_DONE);
- if (status & (1 << 5))
+ if ((status & (1 << 5)) || (status & (1 << 3)))
mx27_camera_frame_done_emma(pcdev, 1, VIDEOBUF_DONE);
writel(status, pcdev->base_emma + PRP_INTRSTATUS);
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff