We need to set the DC register visibility before we can call stdvga_set_mode().
Signed-off-by: Christian Gmeiner christian.gmeiner@gmail.com --- vgasrc/geodevga.c | 41 +++++++++++++++++++++++++++++++++++++++++ vgasrc/geodevga.h | 1 + 2 files changed, 42 insertions(+)
diff --git a/vgasrc/geodevga.c b/vgasrc/geodevga.c index bff856a..dab2b2a 100644 --- a/vgasrc/geodevga.c +++ b/vgasrc/geodevga.c @@ -170,6 +170,47 @@ static void dc_unmap(void) dc_map(0); }
+/**************************************************************** + * Mode setting + ****************************************************************/ + +int geodevga_set_mode(struct vgamode_s *vmode_g, int flags) +{ + /* we need set the DC register visibility within the standard + * VGA memory space (0xA0000 - 0xBffff). + * + * bit: + * 7:3 RSVD + * 2:1 VG_RG_MAP + * 00: Disabled + * 01: 0xA0000 + * 10: 0xB0000 + * 11: 0xB8000 + * 0 PACK_CH4 + */ + + u8 reg; + + switch (vmode_g->sstart) { + case SEG_GRAPH: + reg = 0x02; + break; + case SEG_MTEXT: + reg = 0x04; + break; + case SEG_CTEXT: + reg = 0x06; + break; + default: + reg = 0x00; + break; + } + + stdvga_crtc_write(VGAREG_VGA_CRTC_ADDRESS, EXTENDED_MODE_CONTROL, reg); + + return stdvga_set_mode(vmode_g, flags); +} +
/**************************************************************** * Init Functions diff --git a/vgasrc/geodevga.h b/vgasrc/geodevga.h index fd7ce43..86f5d48 100644 --- a/vgasrc/geodevga.h +++ b/vgasrc/geodevga.h @@ -71,5 +71,6 @@ #define DC_CFG_MSK 0xf000a6
int geodevga_init(); +int geodevga_set_mode(struct vgamode_s *vmode_g, int flags);
#endif
Ignore this one one... will rework it --- Christian Gmeiner, MSc
2012/8/31 Christian Gmeiner christian.gmeiner@gmail.com:
We need to set the DC register visibility before we can call stdvga_set_mode().
Signed-off-by: Christian Gmeiner christian.gmeiner@gmail.com
vgasrc/geodevga.c | 41 +++++++++++++++++++++++++++++++++++++++++ vgasrc/geodevga.h | 1 + 2 files changed, 42 insertions(+)
diff --git a/vgasrc/geodevga.c b/vgasrc/geodevga.c index bff856a..dab2b2a 100644 --- a/vgasrc/geodevga.c +++ b/vgasrc/geodevga.c @@ -170,6 +170,47 @@ static void dc_unmap(void) dc_map(0); }
+/****************************************************************
- Mode setting
- ****************************************************************/
+int geodevga_set_mode(struct vgamode_s *vmode_g, int flags) +{
- /* we need set the DC register visibility within the standard
* VGA memory space (0xA0000 - 0xBffff).** bit:* 7:3 RSVD* 2:1 VG_RG_MAP* 00: Disabled* 01: 0xA0000* 10: 0xB0000* 11: 0xB8000* 0 PACK_CH4*/- u8 reg;
- switch (vmode_g->sstart) {
- case SEG_GRAPH:
reg = 0x02;break;- case SEG_MTEXT:
reg = 0x04;break;- case SEG_CTEXT:
reg = 0x06;break;- default:
reg = 0x00;break;- }
- stdvga_crtc_write(VGAREG_VGA_CRTC_ADDRESS, EXTENDED_MODE_CONTROL, reg);
- return stdvga_set_mode(vmode_g, flags);
+}
/****************************************************************
- Init Functions
diff --git a/vgasrc/geodevga.h b/vgasrc/geodevga.h index fd7ce43..86f5d48 100644 --- a/vgasrc/geodevga.h +++ b/vgasrc/geodevga.h @@ -71,5 +71,6 @@ #define DC_CFG_MSK 0xf000a6
int geodevga_init(); +int geodevga_set_mode(struct vgamode_s *vmode_g, int flags);
#endif
1.7.11.rc2.5.g68f532f
-
Christian Gmeiner