Writeback contains overlay-like parameters which need to be applied by a user
of writeback.
Create functions in APPLY which get and set user_info of type
omap_dss_writeback_info, these are similar to overlay's dss_ovl_get_info and
dss_ovl_set_info ops. The writeback output driver provides equivalent functions
for a writeback user, these finally call the above APPLY functions.
Add a private data struct for writeback which stores the user_info and it's
state. This struct will be later added with more params to represent the other
levels of the APPLY cache. Add a helper function to retrieve the private data.
Signed-off-by: Archit Taneja <archit@xxxxxx>
---
drivers/video/omap2/dss/apply.c | 42 +++++++++++++++++++++++++++++++++++
drivers/video/omap2/dss/dss.h | 5 +++++
drivers/video/omap2/dss/writeback.c | 14 ++++++++++++
include/video/omapdss.h | 4 ++++
4 files changed, 65 insertions(+)
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 7a7b820..b2e4f6a 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -106,9 +106,16 @@ struct mgr_priv_data {
struct dss_lcd_mgr_config lcd_config;
};
+struct wb_priv_data {
+
+ bool user_info_dirty;
+ struct omap_dss_writeback_info user_info;
+};
+
static struct {
struct ovl_priv_data ovl_priv_data_array[MAX_DSS_OVERLAYS];
struct mgr_priv_data mgr_priv_data_array[MAX_DSS_MANAGERS];
+ struct wb_priv_data wb_priv_data;
bool irq_enabled;
} dss_data;
@@ -131,6 +138,11 @@ static struct mgr_priv_data *get_mgr_priv(struct omap_overlay_manager *mgr)
return &dss_data.mgr_priv_data_array[mgr->id];
}
+static struct wb_priv_data *get_wb_priv(struct omap_dss_output *wb)
+{
+ return &dss_data.wb_priv_data;
+}
+
void dss_apply_init(void)
{
const int num_ovls = dss_feat_get_num_ovls();
@@ -1465,3 +1477,33 @@ err:
return r;
}
+int dss_wb_set_info(struct omap_dss_output *wb,
+ struct omap_dss_writeback_info *info)
+{
+ struct wb_priv_data *wp = get_wb_priv(wb);
+ unsigned long flags;
+
+ /* TODO: Check validity of info */
+
+ spin_lock_irqsave(&data_lock, flags);
+
+ wp->user_info = *info;
+ wp->user_info_dirty = true;
+
+ spin_unlock_irqrestore(&data_lock, flags);
+
+ return 0;
+}
+
+void dss_wb_get_info(struct omap_dss_output *wb,
+ struct omap_dss_writeback_info *info)
+{
+ struct wb_priv_data *wp = get_wb_priv(wb);
+ unsigned long flags;
+
+ spin_lock_irqsave(&data_lock, flags);
+
+ *info = wp->user_info;
+
+ spin_unlock_irqrestore(&data_lock, flags);
+}
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index f7eb7d6..f738c1e 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -210,6 +210,11 @@ int dss_ovl_set_manager(struct omap_overlay *ovl,
struct omap_overlay_manager *mgr);
int dss_ovl_unset_manager(struct omap_overlay *ovl);
+int dss_wb_set_info(struct omap_dss_output *wb,
+ struct omap_dss_writeback_info *info);
+void dss_wb_get_info(struct omap_dss_output *wb,
+ struct omap_dss_writeback_info *info);
+
/* output */
void dss_register_output(struct omap_dss_output *out);
void dss_unregister_output(struct omap_dss_output *out);
diff --git a/drivers/video/omap2/dss/writeback.c b/drivers/video/omap2/dss/writeback.c
index b5c6406..be7027b 100644
--- a/drivers/video/omap2/dss/writeback.c
+++ b/drivers/video/omap2/dss/writeback.c
@@ -42,6 +42,20 @@ static inline struct platform_device *writeback_get_wbdev_from_output(struct oma
return out->pdev;
}
+int omapdss_writeback_set_info(struct omap_dss_output *wb,
+ struct omap_dss_writeback_info *info)
+{
+ return dss_wb_set_info(wb, info);
+}
+EXPORT_SYMBOL(omapdss_writeback_set_info);
+
+void omapdss_writeback_get_info(struct omap_dss_output *wb,
+ struct omap_dss_writeback_info *info)
+{
+ dss_wb_get_info(wb, info);
+}
+EXPORT_SYMBOL(omapdss_writeback_get_info);
+
struct omap_dss_output *omap_dss_get_writeback(void)
{
return omap_dss_get_output(OMAP_DSS_OUTPUT_WB);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index e81fcb2..2a3a878 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -837,6 +837,10 @@ void omapdss_rfbi_set_data_lines(struct omap_dss_device *dssdev,
void omapdss_rfbi_set_interface_timings(struct omap_dss_device *dssdev,
struct rfbi_timings *timings);
+int omapdss_writeback_set_info(struct omap_dss_output *wb,
+ struct omap_dss_writeback_info *info);
+void omapdss_writeback_get_info(struct omap_dss_output *wb,
+ struct omap_dss_writeback_info *info);
#ifdef CONFIG_OMAP4_DSS_WRITEBACK
struct omap_dss_output *omap_dss_get_writeback(void);
#else
--
1.7.9.5
--
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