video: msm: Writeback support in mdp for WFD.
Adds writeback mode in mdp for wifi-display(WFD).
This mode can be used to get the captured
frames from mdp. This is added to support
wifi-display capture device.
Change-Id: Iae30cac65af181d8df4b514a128cd876fe7dda1c
Signed-off-by: Vinay Kalia <vkalia@codeaurora.org>
diff --git a/drivers/video/msm/msm_fb.h b/drivers/video/msm/msm_fb.h
index 43802a2..a650e73 100644
--- a/drivers/video/msm/msm_fb.h
+++ b/drivers/video/msm/msm_fb.h
@@ -35,7 +35,10 @@
#include <linux/hrtimer.h>
#include <linux/fb.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/msm_mdp.h>
#ifdef CONFIG_HAS_EARLYSUSPEND
#include <linux/earlysuspend.h>
#endif
@@ -53,6 +56,17 @@
boolean panel_power_on;
};
+struct msmfb_writeback_data_list {
+ struct list_head registered_entry;
+ struct list_head active_entry;
+ void *addr;
+ struct file *pmem_file;
+ struct msmfb_data buf_info;
+ struct msmfb_img img;
+ int state;
+};
+
+
struct msm_fb_data_type {
__u32 key;
__u32 index;
@@ -151,6 +165,13 @@
struct completion msmfb_update_notify;
struct completion msmfb_no_update_notify;
u32 ov_start, ov_end;
+
+ struct mutex writeback_mutex;
+ struct mutex unregister_mutex;
+ struct list_head writeback_busy_queue;
+ struct list_head writeback_free_queue;
+ struct list_head writeback_register_queue;
+ wait_queue_head_t wait_q;
};
struct dentry *msm_fb_get_debugfs_root(void);
@@ -159,7 +180,17 @@
void msm_fb_set_backlight(struct msm_fb_data_type *mfd, __u32 bkl_lvl);
struct platform_device *msm_fb_add_device(struct platform_device *pdev);
-
+struct fb_info *msm_fb_get_writeback_fb(void);
+int msm_fb_writeback_init(struct fb_info *info);
+int msm_fb_writeback_register_buffer(struct fb_info *info,
+ struct msmfb_writeback_data *data);
+int msm_fb_writeback_queue_buffer(struct fb_info *info,
+ struct msmfb_data *data);
+int msm_fb_writeback_dequeue_buffer(struct fb_info *info,
+ struct msmfb_data *data);
+int msm_fb_writeback_unregister_buffer(struct fb_info *info,
+ struct msmfb_writeback_data *data);
+int msm_fb_writeback_terminate(struct fb_info *info);
int msm_fb_detect_client(const char *name);
#ifdef CONFIG_FB_BACKLIGHT