Create omap_vout_vrfb.c and omap_vout_vrfb.h, these contain functions which
omap_vout will call if the rotation type is set to VRFB rotation. It is
essentialy the code in omap_vout which is used for vrfb specific tasks.
Apart from this, some functions and preprocessor defines needed by the new
vrfb function's have been moved around.
Signed-off-by: Archit Taneja <archit@xxxxxx>
---
drivers/media/video/omap/omap_vout.c | 32 +--
drivers/media/video/omap/omap_vout_vrfb.c | 417 +++++++++++++++++++++++++++++
drivers/media/video/omap/omap_vout_vrfb.h | 40 +++
drivers/media/video/omap/omap_voutdef.h | 25 ++
4 files changed, 490 insertions(+), 24 deletions(-)
create mode 100644 drivers/media/video/omap/omap_vout_vrfb.c
create mode 100644 drivers/media/video/omap/omap_vout_vrfb.h
diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index 4ed51b1..46bc642
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -56,7 +56,6 @@ MODULE_AUTHOR("Texas Instruments");
MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
MODULE_LICENSE("GPL");
-
/* Driver Configuration macros */
#define VOUT_NAME "omap_vout"
@@ -65,28 +64,13 @@ enum omap_vout_channels {
OMAP_VIDEO2,
};
-enum dma_channel_state {
- DMA_CHAN_NOT_ALLOTED,
- DMA_CHAN_ALLOTED,
-};
-
#define QQVGA_WIDTH 160
#define QQVGA_HEIGHT 120
-/* Max Resolution supported by the driver */
-#define VID_MAX_WIDTH 1280 /* Largest width */
-#define VID_MAX_HEIGHT 720 /* Largest height */
-
/* Mimimum requirement is 2x2 for DSS */
#define VID_MIN_WIDTH 2
#define VID_MIN_HEIGHT 2
-/* 2048 x 2048 is max res supported by OMAP display controller */
-#define MAX_PIXELS_PER_LINE 2048
-
-#define VRFB_TX_TIMEOUT 1000
-#define VRFB_NUM_BUFS 4
-
/* Max buffer size tobe allocated during init */
#define OMAP_VOUT_MAX_BUF_SIZE (VID_MAX_WIDTH*VID_MAX_HEIGHT*4)
@@ -96,8 +80,8 @@ static u32 video1_numbuffers = 3;
static u32 video2_numbuffers = 3;
static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
-static u32 vid1_static_vrfb_alloc;
-static u32 vid2_static_vrfb_alloc;
+u32 vid1_static_vrfb_alloc;
+u32 vid2_static_vrfb_alloc;
static int debug;
/* Module parameters */
@@ -174,7 +158,7 @@ const static struct v4l2_fmtdesc omap_formats[] = {
/*
* Allocate buffers
*/
-static unsigned long omap_vout_alloc_buffer(u32 buf_size, u32 *phys_addr)
+unsigned long omap_vout_alloc_buffer(u32 buf_size, u32 *phys_addr)
{
u32 order, size;
unsigned long virt_addr, addr;
@@ -198,7 +182,7 @@ static unsigned long omap_vout_alloc_buffer(u32 buf_size, u32 *phys_addr)
/*
* Free buffers
*/
-static void omap_vout_free_buffer(unsigned long virtaddr, u32 buf_size)
+void omap_vout_free_buffer(unsigned long virtaddr, u32 buf_size)
{
u32 order, size;
unsigned long addr = virtaddr;
@@ -371,7 +355,7 @@ static void omap_vout_release_vrfb(struct omap_vout_device *vout)
/*
* Return true if rotation is 90 or 270
*/
-static inline int rotate_90_or_270(const struct omap_vout_device *vout)
+int rotate_90_or_270(const struct omap_vout_device *vout)
{
return (vout->rotation == dss_rotation_90_degree ||
vout->rotation == dss_rotation_270_degree);
@@ -380,7 +364,7 @@ static inline int rotate_90_or_270(const struct omap_vout_device *vout)
/*
* Return true if rotation is enabled
*/
-static inline int rotation_enabled(const struct omap_vout_device *vout)
+int rotation_enabled(const struct omap_vout_device *vout)
{
return vout->rotation || vout->mirror;
}
@@ -388,7 +372,7 @@ static inline int rotation_enabled(const struct omap_vout_device *vout)
/*
* Reverse the rotation degree if mirroring is enabled
*/
-static inline int calc_rotation(const struct omap_vout_device *vout)
+int calc_rotation(const struct omap_vout_device *vout)
{
if (!vout->mirror)
return vout->rotation;
@@ -408,7 +392,7 @@ static inline int calc_rotation(const struct omap_vout_device *vout)
/*
* Free the V4L2 buffers
*/
-static void omap_vout_free_buffers(struct omap_vout_device *vout)
+void omap_vout_free_buffers(struct omap_vout_device *vout)
{
int i, numbuffers;
diff --git a/drivers/media/video/omap/omap_vout_vrfb.c b/drivers/media/video/omap/omap_vout_vrfb.c
new file mode 100644
index 0000000..1e6d8a7
--- /dev/null
+++ b/drivers/media/video/omap/omap_vout_vrfb.c
@@ -0,0 +1,417 @@
+/*
+ * omap_vout_vrfb.c
+ *
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/videodev2.h>
+
+#include <media/videobuf-dma-contig.h>
+#include <media/v4l2-device.h>
+
+#include <plat/dma.h>
+#include <plat/vrfb.h>
+#include <plat/display.h>
+
+#include "omap_voutdef.h"
+
+/*
+ * Function for allocating video buffers
+ */
+static int omap_vout_allocate_vrfb_buffers(struct omap_vout_device *vout,
+ unsigned int *count, int startindex)
+{
+ int i, j;
+
+ for (i = 0; i < *count; i++) {
+ if (!vout->smsshado_virt_addr[i]) {
+ vout->smsshado_virt_addr[i] =
+ omap_vout_alloc_buffer(vout->smsshado_size,
+ &vout->smsshado_phy_addr[i]);
+ }
+ if (!vout->smsshado_virt_addr[i] && startindex != -1) {
+ if (V4L2_MEMORY_MMAP == vout->memory && i >= startindex)
+ break;
+ }
+ if (!vout->smsshado_virt_addr[i]) {
+ for (j = 0; j < i; j++) {
+ omap_vout_free_buffer(
+ vout->smsshado_virt_addr[j],
+ vout->smsshado_size);
+ vout->smsshado_virt_addr[j] = 0;
+ vout->smsshado_phy_addr[j] = 0;
+ }
+ *count = 0;
+ return -ENOMEM;
+ }
+ memset((void *) vout->smsshado_virt_addr[i], 0,
+ vout->smsshado_size);
+ }
+ return 0;
+}
+
+/*
+ * Wakes up the application once the DMA transfer to VRFB space is completed.
+ */
+static void omap_vout_vrfb_dma_tx_callback(int lch, u16 ch_status, void *data)
+{
+ struct vid_vrfb_dma *t = (struct vid_vrfb_dma *) data;
+
+ t->tx_status = 1;
+ wake_up_interruptible(&t->wait);
+}
+
+/*
+ * Free VRFB buffers
+ */
+void omap_vout_free_vrfb_buffers(struct omap_vout_device *vout)
+{
+ int j;
+
+ for (j = 0; j < VRFB_NUM_BUFS; j++) {
+ omap_vout_free_buffer(vout->smsshado_virt_addr[j],
+ vout->smsshado_size);
+ vout->smsshado_virt_addr[j] = 0;
+ vout->smsshado_phy_addr[j] = 0;
+ }
+}
+
+/* Free the VRFB buffers only if they are allocated
+ * during reqbufs. Don't free if init time allocated
+ */
+void omap_vout_free_extra_vrfb_buffers(struct omap_vout_device *vout)
+{
+
+ int i = 0;
+
+ if (!vout->vrfb_static_allocation) {
+ for (i = 0; i < VRFB_NUM_BUFS; i++) {
+ if (vout->smsshado_virt_addr[i]) {
+ omap_vout_free_buffer(
+ vout->smsshado_virt_addr[i],
+ vout->smsshado_size);
+ vout->smsshado_virt_addr[i] = 0;
+ vout->smsshado_phy_addr[i] = 0;
+ }
+ }
+ }
+}
+
+int omap_vout_setup_vrfb_bufs(struct platform_device *pdev, int vid_num)
+{
+ int ret = 0, i, j;
+ struct omap_vout_device *vout;
+ struct video_device *vfd;
+ int image_width, image_height;
+ int static_vrfb_allocation = 0, vrfb_num_bufs = VRFB_NUM_BUFS;
+ struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
+ struct omap2video_device *vid_dev =
+ container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
+
+ vout = vid_dev->vouts[vid_num];
+ vfd = vout->vfd;
+
+ for (i = 0; i < VRFB_NUM_BUFS; i++) {
+ if (omap_vrfb_request_ctx(&vout->vrfb_context[i])) {
+ dev_info(&pdev->dev, ": VRFB allocation failed\n");
+ for (j = 0; j < i; j++)
+ omap_vrfb_release_ctx(&vout->vrfb_context[j]);
+ ret = -ENOMEM;
+ goto free_buffers;
+ }
+ }
+
+ /* Calculate VRFB memory size */
+ /* allocate for worst case size */
+ image_width = VID_MAX_WIDTH / TILE_SIZE;
+ if (VID_MAX_WIDTH % TILE_SIZE)
+ image_width++;
+
+ image_width = image_width * TILE_SIZE;
+ image_height = VID_MAX_HEIGHT / TILE_SIZE;
+
+ if (VID_MAX_HEIGHT % TILE_SIZE)
+ image_height++;
+
+ image_height = image_height * TILE_SIZE;
+ vout->smsshado_size = PAGE_ALIGN(image_width * image_height * 2 * 2);
+
+ /*
+ * Request and Initialize DMA, for DMA based VRFB transfer
+ */
+ vout->vrfb_dma_tx.dev_id = OMAP_DMA_NO_DEVICE;
+ vout->vrfb_dma_tx.dma_ch = -1;
+ vout->vrfb_dma_tx.req_status = DMA_CHAN_ALLOTED;
+ ret = omap_request_dma(vout->vrfb_dma_tx.dev_id, "VRFB DMA TX",
+ omap_vout_vrfb_dma_tx_callback,
+ (void *) &vout->vrfb_dma_tx, &vout->vrfb_dma_tx.dma_ch);
+ if (ret < 0) {
+ vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+ dev_info(&pdev->dev, ": failed to allocate DMA Channel for"
+ " video%d\n", vfd->minor);
+ }
+ init_waitqueue_head(&vout->vrfb_dma_tx.wait);
+
+ /* Allocate VRFB buffers if selected through bootargs */
+ static_vrfb_allocation = (vid_num == 0) ?
+ vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
+
+ /* statically allocated the VRFB buffer is done through
+ commands line aruments */
+ if (static_vrfb_allocation) {
+ if (omap_vout_allocate_vrfb_buffers(vout, &vrfb_num_bufs, -1)) {
+ ret = -ENOMEM;
+ goto release_vrfb_ctx;
+ }
+ vout->vrfb_static_allocation = 1;
+ }
+ return 0;
+
+release_vrfb_ctx:
+ for (j = 0; j < VRFB_NUM_BUFS; j++)
+ omap_vrfb_release_ctx(&vout->vrfb_context[j]);
+free_buffers:
+ omap_vout_free_buffers(vout);
+
+ return ret;
+}
+
+/*
+ * Release the VRFB context once the module exits
+ */
+void omap_vout_release_vrfb(struct omap_vout_device *vout)
+{
+ int i;
+
+ for (i = 0; i < VRFB_NUM_BUFS; i++)
+ omap_vrfb_release_ctx(&vout->vrfb_context[i]);
+
+ if (vout->vrfb_dma_tx.req_status == DMA_CHAN_ALLOTED) {
+ vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+ omap_free_dma(vout->vrfb_dma_tx.dma_ch);
+ }
+}
+
+/*
+ * Allocate the buffers for the VRFB space. Data is copied from V4L2
+ * buffers to the VRFB buffers using the DMA engine.
+ */
+int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout,
+ unsigned int *count, unsigned int startindex)
+{
+ int i;
+ bool yuv_mode;
+
+ if (!rotation_enabled(vout))
+ return 0;
+
+ /* If rotation is enabled, allocate memory for VRFB space also */
+ *count = *count > VRFB_NUM_BUFS ? VRFB_NUM_BUFS : *count;
+
+ /* Allocate the VRFB buffers only if the buffers are not
+ * allocated during init time.
+ */
+ if (!vout->vrfb_static_allocation)
+ if (omap_vout_allocate_vrfb_buffers(vout, count, startindex))
+ return -ENOMEM;
+
+ if (vout->dss_mode == OMAP_DSS_COLOR_YUV2 ||
+ vout->dss_mode == OMAP_DSS_COLOR_UYVY)
+ yuv_mode = true;
+ else
+ yuv_mode = false;
+
+ for (i = 0; i < *count; i++)
+ omap_vrfb_setup(&vout->vrfb_context[i],
+ vout->smsshado_phy_addr[i], vout->pix.width,
+ vout->pix.height, vout->bpp, yuv_mode);
+
+ return 0;
+}
+
+int omap_vout_prepare_vrfb(struct omap_vout_device *vout,
+ struct videobuf_buffer *vb)
+{
+ dma_addr_t dmabuf;
+ struct vid_vrfb_dma *tx;
+ enum dss_rotation rotation;
+ u32 dest_frame_index = 0, src_element_index = 0;
+ u32 dest_element_index = 0, src_frame_index = 0;
+ u32 elem_count = 0, frame_count = 0, pixsize = 2;
+
+ if (!rotation_enabled(vout))
+ return 0;
+
+ dmabuf = vout->buf_phy_addr[vb->i];
+ /* If rotation is enabled, copy input buffer into VRFB
+ * memory space using DMA. We are copying input buffer
+ * into VRFB memory space of desired angle and DSS will
+ * read image VRFB memory for 0 degree angle
+ */
+ pixsize = vout->bpp * vout->vrfb_bpp;
+ /*
+ * DMA transfer in double index mode
+ */
+
+ /* Frame index */
+ dest_frame_index = ((MAX_PIXELS_PER_LINE * pixsize) -
+ (vout->pix.width * vout->bpp)) + 1;
+
+ /* Source and destination parameters */
+ src_element_index = 0;
+ src_frame_index = 0;
+ dest_element_index = 1;
+ /* Number of elements per frame */
+ elem_count = vout->pix.width * vout->bpp;
+ frame_count = vout->pix.height;
+ tx = &vout->vrfb_dma_tx;
+ tx->tx_status = 0;
+ omap_set_dma_transfer_params(tx->dma_ch, OMAP_DMA_DATA_TYPE_S32,
+ (elem_count / 4), frame_count, OMAP_DMA_SYNC_ELEMENT,
+ tx->dev_id, 0x0);
+ /* src_port required only for OMAP1 */
+ omap_set_dma_src_params(tx->dma_ch, 0, OMAP_DMA_AMODE_POST_INC,
+ dmabuf, src_element_index, src_frame_index);
+ /*set dma source burst mode for VRFB */
+ omap_set_dma_src_burst_mode(tx->dma_ch, OMAP_DMA_DATA_BURST_16);
+ rotation = calc_rotation(vout);
+
+ /* dest_port required only for OMAP1 */
+ omap_set_dma_dest_params(tx->dma_ch, 0, OMAP_DMA_AMODE_DOUBLE_IDX,
+ vout->vrfb_context[vb->i].paddr[0], dest_element_index,
+ dest_frame_index);
+ /*set dma dest burst mode for VRFB */
+ omap_set_dma_dest_burst_mode(tx->dma_ch, OMAP_DMA_DATA_BURST_16);
+ omap_dma_set_global_params(DMA_DEFAULT_ARB_RATE, 0x20, 0);
+
+ omap_start_dma(tx->dma_ch);
+ interruptible_sleep_on_timeout(&tx->wait, VRFB_TX_TIMEOUT);
+
+ if (tx->tx_status == 0) {
+ omap_stop_dma(tx->dma_ch);
+ return -EINVAL;
+ }
+ /* Store buffers physical address into an array. Addresses
+ * from this array will be used to configure DSS */
+ vout->queued_buf_addr[vb->i] = (u8 *)
+ vout->vrfb_context[vb->i].paddr[rotation];
+ return 0;
+}
+
+/*
+ * Calculate the buffer offsets from which the streaming should
+ * start. This offset calculation is mainly required because of
+ * the VRFB 32 pixels alignment with rotation.
+ */
+void omap_vout_calculate_vrfb_offset(struct omap_vout_device *vout)
+{
+ enum dss_rotation rotation;
+ bool mirroring = vout->mirror;
+ struct v4l2_rect *crop = &vout->crop;
+ struct v4l2_pix_format *pix = &vout->pix;
+ int *cropped_offset = &vout->cropped_offset;
+ int vr_ps = 1, ps = 2, temp_ps = 2;
+ int offset = 0, ctop = 0, cleft = 0, line_length = 0;
+
+ rotation = calc_rotation(vout);
+
+ if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
+ V4L2_PIX_FMT_UYVY == pix->pixelformat) {
+ if (rotation_enabled(vout)) {
+ /*
+ * ps - Actual pixel size for YUYV/UYVY for
+ * VRFB/Mirroring is 4 bytes
+ * vr_ps - Virtually pixel size for YUYV/UYVY is
+ * 2 bytes
+ */
+ ps = 4;
+ vr_ps = 2;
+ } else {
+ ps = 2; /* otherwise the pixel size is 2 byte */
+ }
+ } else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat) {
+ ps = 4;
+ } else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat) {
+ ps = 3;
+ }
+ vout->ps = ps;
+ vout->vr_ps = vr_ps;
+
+ if (rotation_enabled(vout)) {
+ line_length = MAX_PIXELS_PER_LINE;
+ ctop = (pix->height - crop->height) - crop->top;
+ cleft = (pix->width - crop->width) - crop->left;
+ } else {
+ line_length = pix->width;
+ }
+ vout->line_length = line_length;
+ switch (rotation) {
+ case dss_rotation_90_degree:
+ offset = vout->vrfb_context[0].yoffset *
+ vout->vrfb_context[0].bytespp;
+ temp_ps = ps / vr_ps;
+ if (mirroring == 0) {
+ *cropped_offset = offset + line_length *
+ temp_ps * cleft + crop->top * temp_ps;
+ } else {
+ *cropped_offset = offset + line_length * temp_ps *
+ cleft + crop->top * temp_ps + (line_length *
+ ((crop->width / (vr_ps)) - 1) * ps);
+ }
+ break;
+ case dss_rotation_180_degree:
+ offset = ((MAX_PIXELS_PER_LINE * vout->vrfb_context[0].yoffset *
+ vout->vrfb_context[0].bytespp) +
+ (vout->vrfb_context[0].xoffset *
+ vout->vrfb_context[0].bytespp));
+ if (mirroring == 0) {
+ *cropped_offset = offset + (line_length * ps * ctop) +
+ (cleft / vr_ps) * ps;
+
+ } else {
+ *cropped_offset = offset + (line_length * ps * ctop) +
+ (cleft / vr_ps) * ps + (line_length *
+ (crop->height - 1) * ps);
+ }
+ break;
+ case dss_rotation_270_degree:
+ offset = MAX_PIXELS_PER_LINE * vout->vrfb_context[0].xoffset *
+ vout->vrfb_context[0].bytespp;
+ temp_ps = ps / vr_ps;
+ if (mirroring == 0) {
+ *cropped_offset = offset + line_length *
+ temp_ps * crop->left + ctop * ps;
+ } else {
+ *cropped_offset = offset + line_length *
+ temp_ps * crop->left + ctop * ps +
+ (line_length * ((crop->width / vr_ps) - 1) *
+ ps);
+ }
+ break;
+ case dss_rotation_0_degree:
+ if (mirroring == 0) {
+ *cropped_offset = (line_length * ps) *
+ crop->top + (crop->left / vr_ps) * ps;
+ } else {
+ *cropped_offset = (line_length * ps) *
+ crop->top + (crop->left / vr_ps) * ps +
+ (line_length * (crop->height - 1) * ps);
+ }
+ break;
+ default:
+ *cropped_offset = (line_length * ps * crop->top) /
+ vr_ps + (crop->left * ps) / vr_ps +
+ ((crop->width / vr_ps) - 1) * ps;
+ break;
+ }
+}
diff --git a/drivers/media/video/omap/omap_vout_vrfb.h b/drivers/media/video/omap/omap_vout_vrfb.h
new file mode 100644
index 0000000..78aef31
--- /dev/null
+++ b/drivers/media/video/omap/omap_vout_vrfb.h
@@ -0,0 +1,40 @@
+/*
+ * omap_vout_vrfb.h
+ *
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+#ifndef OMAP_VOUT_VRFB_H
+#define OMAP_VOUT_VRFB_H
+
+#ifdef CONFIG_OMAP2_VRFB
+void omap_vout_free_vrfb_buffers(struct omap_vout_device *vout);
+void omap_vout_free_extra_vrfb_buffers(struct omap_vout_device *vout);
+int omap_vout_setup_vrfb_bufs(struct platform_device *pdev, int vid_num);
+void omap_vout_release_vrfb(struct omap_vout_device *vout);
+int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout,
+ unsigned int *count, unsigned int startindex);
+int omap_vout_prepare_vrfb(struct omap_vout_device *vout,
+ struct videobuf_buffer *vb);
+void omap_vout_calculate_vrfb_offset(struct omap_vout_device *vout);
+#else
+void omap_vout_free_vrfb_buffers(struct omap_vout_device *vout) { }
+void omap_vout_free_extra_vrfb_buffers(struct omap_vout_device *vout) { }
+int omap_vout_setup_vrfb_bufs(struct platform_device *pdev, int vid_num)
+ { return 0; }
+void omap_vout_release_vrfb(struct omap_vout_device *vout) { }
+int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout,
+ unsigned int *count, unsigned int startindex)
+ { return 0; }
+int omap_vout_prepare_vrfb(struct omap_vout_device *vout,
+ struct videobuf_buffer *vb)
+ { return 0; }
+void omap_vout_calculate_vrfb_offset(struct omap_vout_device *vout) { }
+#endif
+
+#endif
diff --git a/drivers/media/video/omap/omap_voutdef.h b/drivers/media/video/omap/omap_voutdef.h
index ea3a047..7dae075
--- a/drivers/media/video/omap/omap_voutdef.h
+++ b/drivers/media/video/omap/omap_voutdef.h
@@ -27,6 +27,24 @@
#define MAX_DISPLAYS 3
#define MAX_MANAGERS 3
+/* Max Resolution supported by the driver */
+#define VID_MAX_WIDTH 1280 /* Largest width */
+#define VID_MAX_HEIGHT 720 /* Largest height */
+
+/* 2048 x 2048 is max res supported by OMAP display controller */
+#define MAX_PIXELS_PER_LINE 2048
+
+#define VRFB_TX_TIMEOUT 1000
+#define VRFB_NUM_BUFS 4
+
+extern u32 vid1_static_vrfb_alloc;
+extern u32 vid2_static_vrfb_alloc;
+
+enum dma_channel_state {
+ DMA_CHAN_NOT_ALLOTED,
+ DMA_CHAN_ALLOTED,
+};
+
/* Enum for Rotation
* DSS understands rotation in 0, 1, 2, 3 context
* while V4L2 driver understands it as 0, 90, 180, 270
@@ -144,4 +162,11 @@ struct omap_vout_device {
int io_allowed;
};
+
+unsigned long omap_vout_alloc_buffer(u32 buf_size, u32 *phys_addr);
+void omap_vout_free_buffer(unsigned long virtaddr, u32 buf_size);
+void omap_vout_free_buffers(struct omap_vout_device *vout);
+int rotate_90_or_270(const struct omap_vout_device *vout);
+int rotation_enabled(const struct omap_vout_device *vout);
+int calc_rotation(const struct omap_vout_device *vout);
#endif /* ifndef OMAP_VOUTDEF_H */
--
1.7.0.4
--
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