The Flat Panel Display Controller belongs to the Video Processor unit but its register are starting at offset 0x400. Provide functions to work with fp register.
Signed-off-by: Christian Gmeiner <[email protected]> --- vgasrc/geodevga.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/vgasrc/geodevga.c b/vgasrc/geodevga.c index 7d780c2..263ef68 100644 --- a/vgasrc/geodevga.c +++ b/vgasrc/geodevga.c @@ -86,6 +86,8 @@ static void geode_mem_mask(u32 addr, u32 off, u32 or) ); } +#define VP_FP_START 0x400 + static u32 GeodeFB VAR16; static u32 GeodeDC VAR16; static u32 GeodeVP VAR16; @@ -134,6 +136,21 @@ static void geode_vp_mask(int reg, u32 off, u32 on) geode_mem_mask(GET_GLOBAL(GeodeVP) + reg, off, on); } +static u32 geode_fp_read(int reg) +{ + u32 val = geode_mem_read(GET_GLOBAL(GeodeVP) + VP_FP_START + reg); + dprintf(4, "%s(0x%08x) = 0x%08x\n" + , __func__, GET_GLOBAL(GeodeVP) + reg, val); + return val; +} + +static void geode_fp_write(int reg, u32 val) +{ + dprintf(4, "%s(0x%08x, 0x%08x)\n" + , __func__, GET_GLOBAL(GeodeVP) + VP_FP_START + reg, val); + geode_mem_mask(GET_GLOBAL(GeodeVP) + reg, ~0, val); +} + /**************************************************************** * Helper functions ****************************************************************/ -- 1.7.12.2.421.g261b511 _______________________________________________ SeaBIOS mailing list [email protected] http://www.seabios.org/mailman/listinfo/seabios
