diff options
author | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2009-12-16 07:53:15 -0500 |
---|---|---|
committer | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2010-02-15 08:14:41 -0500 |
commit | 828c48f8c51ebfc2a00e1a834b0bc9e7fd35060f (patch) | |
tree | 616907853717f904d68196906ee654b7cadcdf00 /drivers/video/omap2/dss | |
parent | 4f76502374ff91bc80a48a32cabb1009087a3b9d (diff) |
OMAP: DSS2: DSI: add helpers for DCS read/write
Add helper functions for most common DCS read and write operations.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Diffstat (limited to 'drivers/video/omap2/dss')
-rw-r--r-- | drivers/video/omap2/dss/dsi.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index b38974523d48..e49f063fb615 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) | |||
2176 | } | 2176 | } |
2177 | EXPORT_SYMBOL(dsi_vc_dcs_write); | 2177 | EXPORT_SYMBOL(dsi_vc_dcs_write); |
2178 | 2178 | ||
2179 | int dsi_vc_dcs_write_0(int channel, u8 dcs_cmd) | ||
2180 | { | ||
2181 | return dsi_vc_dcs_write(channel, &dcs_cmd, 1); | ||
2182 | } | ||
2183 | EXPORT_SYMBOL(dsi_vc_dcs_write_0); | ||
2184 | |||
2185 | int dsi_vc_dcs_write_1(int channel, u8 dcs_cmd, u8 param) | ||
2186 | { | ||
2187 | u8 buf[2]; | ||
2188 | buf[0] = dcs_cmd; | ||
2189 | buf[1] = param; | ||
2190 | return dsi_vc_dcs_write(channel, buf, 2); | ||
2191 | } | ||
2192 | EXPORT_SYMBOL(dsi_vc_dcs_write_1); | ||
2193 | |||
2179 | int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen) | 2194 | int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen) |
2180 | { | 2195 | { |
2181 | u32 val; | 2196 | u32 val; |
@@ -2268,6 +2283,21 @@ int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen) | |||
2268 | } | 2283 | } |
2269 | EXPORT_SYMBOL(dsi_vc_dcs_read); | 2284 | EXPORT_SYMBOL(dsi_vc_dcs_read); |
2270 | 2285 | ||
2286 | int dsi_vc_dcs_read_1(int channel, u8 dcs_cmd, u8 *data) | ||
2287 | { | ||
2288 | int r; | ||
2289 | |||
2290 | r = dsi_vc_dcs_read(channel, dcs_cmd, data, 1); | ||
2291 | |||
2292 | if (r < 0) | ||
2293 | return r; | ||
2294 | |||
2295 | if (r != 1) | ||
2296 | return -EIO; | ||
2297 | |||
2298 | return 0; | ||
2299 | } | ||
2300 | EXPORT_SYMBOL(dsi_vc_dcs_read_1); | ||
2271 | 2301 | ||
2272 | int dsi_vc_set_max_rx_packet_size(int channel, u16 len) | 2302 | int dsi_vc_set_max_rx_packet_size(int channel, u16 len) |
2273 | { | 2303 | { |