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OMAP: DSS2: DSI: add helpers for DCS read/write

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Add helper functions for most common DCS read and write operations.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
This commit is contained in:
Tomi Valkeinen 2009-12-16 14:53:15 +02:00
parent 4f76502374
commit 828c48f8c5
2 changed files with 33 additions and 0 deletions
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3
arch/arm/plat-omap/include/plat/display.h
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@ -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);

30
drivers/video/omap2/dss/dsi.c
View File

@ -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)
{