Add helper functions for most common DCS read and write operations.
Signed-off-by: Tomi Valkeinen <[email protected]>
---
arch/arm/plat-omap/include/plat/display.h | 3 ++
drivers/video/omap2/dss/dsi.c | 30 +++++++++++++++++++++++++++++
2 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-omap/include/plat/display.h
b/arch/arm/plat-omap/include/plat/display.h
index c66e464..47df5f6 100644
--- a/arch/arm/plat-omap/include/plat/display.h
+++ b/arch/arm/plat-omap/include/plat/display.h
@@ -233,8 +233,11 @@ int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
void dsi_bus_lock(void);
void dsi_bus_unlock(void);
int dsi_vc_dcs_write(int channel, u8 *data, int len);
+int dsi_vc_dcs_write_0(int channel, u8 dcs_cmd);
+int dsi_vc_dcs_write_1(int channel, u8 dcs_cmd, u8 param);
int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len);
int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen);
+int dsi_vc_dcs_read_1(int channel, u8 dcs_cmd, u8 *data);
int dsi_vc_set_max_rx_packet_size(int channel, u16 len);
int dsi_vc_send_null(int channel);
int dsi_vc_send_bta_sync(int channel);
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index b389745..e49f063 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -2176,6 +2176,21 @@ int dsi_vc_dcs_write(int channel, u8 *data, int len)
}
EXPORT_SYMBOL(dsi_vc_dcs_write);
+int dsi_vc_dcs_write_0(int channel, u8 dcs_cmd)
+{
+ return dsi_vc_dcs_write(channel, &dcs_cmd, 1);
+}
+EXPORT_SYMBOL(dsi_vc_dcs_write_0);
+
+int dsi_vc_dcs_write_1(int channel, u8 dcs_cmd, u8 param)
+{
+ u8 buf[2];
+ buf[0] = dcs_cmd;
+ buf[1] = param;
+ return dsi_vc_dcs_write(channel, buf, 2);
+}
+EXPORT_SYMBOL(dsi_vc_dcs_write_1);
+
int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen)
{
u32 val;
@@ -2268,6 +2283,21 @@ int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf,
int buflen)
}
EXPORT_SYMBOL(dsi_vc_dcs_read);
+int dsi_vc_dcs_read_1(int channel, u8 dcs_cmd, u8 *data)
+{
+ int r;
+
+ r = dsi_vc_dcs_read(channel, dcs_cmd, data, 1);
+
+ if (r < 0)
+ return r;
+
+ if (r != 1)
+ return -EIO;
+
+ return 0;
+}
+EXPORT_SYMBOL(dsi_vc_dcs_read_1);
int dsi_vc_set_max_rx_packet_size(int channel, u16 len)
{
--
1.6.5
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
