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[PATCH 3/4] Unlock CRTC access and use Standard VGA IO port
by Christian Gmeiner 01 Sep '12

01 Sep '12

If we unlock CRTC access once we can simply make use of standard VGA IO port access functions. Signed-off-by: Christian Gmeiner <christian.gmeiner(a)gmail.com> --- vgasrc/geodevga.c | 38 ++++++-------------------------------- 1 file changed, 6 insertions(+), 32 deletions(-) diff --git a/vgasrc/geodevga.c b/vgasrc/geodevga.c index f7fd895..31632e7 100644 --- a/vgasrc/geodevga.c +++ b/vgasrc/geodevga.c @@ -107,36 +107,6 @@ static int legacyio_check(void) } /**************************************************************** -* Extened CRTC Register functions -****************************************************************/ -static void crtce_lock(void) -{ - stdvga_crtc_write(VGAREG_VGA_CRTC_ADDRESS, EXTENDED_REGISTER_LOCK - , CRTCE_LOCK); -} - -static void crtce_unlock(void) -{ - stdvga_crtc_write(VGAREG_VGA_CRTC_ADDRESS, EXTENDED_REGISTER_LOCK - , CRTCE_UNLOCK); -} - -static u8 crtce_read(u8 reg) -{ - crtce_unlock(); - u8 val = stdvga_crtc_read(VGAREG_VGA_CRTC_ADDRESS, reg); - crtce_lock(); - return val; -} - -static void crtce_write(u8 reg, u8 val) -{ - crtce_unlock(); - stdvga_crtc_write(VGAREG_VGA_CRTC_ADDRESS, reg, val); - crtce_lock(); -} - -/**************************************************************** * Display Controller Functions ****************************************************************/ static u32 dc_read(u16 seg, u32 reg) @@ -174,7 +144,7 @@ static u16 dc_map(u16 seg) { u8 reg; - reg = crtce_read(EXTENDED_MODE_CONTROL); + reg = stdvga_crtc_read(VGAREG_VGA_CRTC_ADDRESS, EXTENDED_MODE_CONTROL); reg &= 0xf9; switch (seg) { case SEG_GRAPH: @@ -191,7 +161,7 @@ static u16 dc_map(u16 seg) break; } - crtce_write(EXTENDED_MODE_CONTROL,reg); + stdvga_crtc_write(VGAREG_VGA_CRTC_ADDRESS, EXTENDED_MODE_CONTROL,reg); return seg; } @@ -366,6 +336,10 @@ int geodevga_init(void) // Device should be at 00:01.1 SET_VGA(VgaBDF, pci_to_bdf(0, 1, 1)); + // unlock crtc so we can use Standard VGA IO port access functions + stdvga_crtc_write(VGAREG_VGA_CRTC_ADDRESS, EXTENDED_REGISTER_LOCK + , CRTCE_UNLOCK); + vp_setup(); dc_setup(); -- 1.7.11.rc2.5.g68f532f

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[PATCH 2/4] Check if we run already and abort if needed.
by Christian Gmeiner 01 Sep '12

01 Sep '12

Every other vbios impl in seabios does this so we should do it too. Signed-off-by: Christian Gmeiner <christian.gmeiner(a)gmail.com> --- vgasrc/geodevga.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/vgasrc/geodevga.c b/vgasrc/geodevga.c index c634f79..f7fd895 100644 --- a/vgasrc/geodevga.c +++ b/vgasrc/geodevga.c @@ -345,6 +345,9 @@ int geodevga_init(void) dprintf(1,"GEODEVGA_INIT legacyio_check=0x%x\n",ret); } + if (GET_GLOBAL(HaveRunInit)) + return 0; + // Updated timings from geode datasheets, table 6-53 in particular static u8 *new_crtc[] VAR16 = { geode_crtc_01, geode_crtc_01, geode_crtc_03, geode_crtc_03, -- 1.7.11.rc2.5.g68f532f

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[PATCH 1/4] change return value of dc_setup() and vp_setup() to void
by Christian Gmeiner 01 Sep '12

01 Sep '12

There is no reason to have a return value of type int for dc_setup() and vp_setup() as they return nothing else then 0. Also add missing static to vp_setup(). Signed-off-by: Christian Gmeiner <christian.gmeiner(a)gmail.com> --- vgasrc/geodevga.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/vgasrc/geodevga.c b/vgasrc/geodevga.c index 5c6caf0..c634f79 100644 --- a/vgasrc/geodevga.c +++ b/vgasrc/geodevga.c @@ -210,7 +210,7 @@ static void dc_unmap(void) * for features not accessible from the VGA registers, * the dc's pci bar can be mapped to a vga memory segment */ -static int dc_setup(void) +static void dc_setup(void) { u32 fb, dc_fb; u16 seg; @@ -237,8 +237,6 @@ static int dc_setup(void) dc_lock(seg); dc_unmap(); - - return 0; } /* Setup the vp (video processor) portion of the geodelx @@ -247,7 +245,7 @@ static int dc_setup(void) * The High Mem Access virtual register is used to configure the * pci mmio bar from 16bit friendly io space. */ -int vp_setup(void) +static void vp_setup(void) { u32 reg,vp; @@ -277,8 +275,6 @@ int vp_setup(void) geode_memWrite(vp+VP_DCFG, ~0,VP_CRT_EN+VP_HSYNC_EN+VP_VSYNC_EN+VP_DAC_BL_EN+VP_CRT_SKEW); reg = geode_memRead(vp+VP_DCFG); dprintf(1,"VP_SETUP VP_DCFG=0x%08x\n",reg); - - return 0; } static u8 geode_crtc_01[] VAR16 = { @@ -366,8 +362,9 @@ int geodevga_init(void) if (GET_GLOBAL(VgaBDF) < 0) // Device should be at 00:01.1 SET_VGA(VgaBDF, pci_to_bdf(0, 1, 1)); - ret |= vp_setup(); - ret |= dc_setup(); + + vp_setup(); + dc_setup(); return ret; } -- 1.7.11.rc2.5.g68f532f

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[PATCH 1/6] vgasrc: Add skeleton for VBE function 15h (VBE/DDC Standard)
by Hiroshi Miura(＠osmf) 01 Sep '12

01 Sep '12

posted in Wed Mar 7 03:41:06 CET 2012 Signed-off-by: Julian Pidancet <julian.pidancet(a)gmail.com> Signed-off-by: Hiroshi Miura <miurahr(a)linux.com> --- src/vbe.h | 5 +++++ vgasrc/stdvga.c | 11 +++++++++++ vgasrc/stdvga.h | 2 ++ vgasrc/vbe.c | 34 ++++++++++++++++++++++++++++++++++ vgasrc/vgahw.h | 8 ++++++++ 5 files changed, 60 insertions(+)

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[PATCH 2/6] bochsvga: Implement vbe 15h function
by Hiroshi Miura 01 Sep '12

01 Sep '12

Posted Wed Mar 7 03:41:07 CET 2012 This patch adds the ability for the Bochs VGA ROM to return information about a generic SVGA monitor. It uses a hardcoded EDID for now, but we can easily immagine contructing an EDID at run time with the help of some support code. Returning an EDID with decent timings may be necessary in case we want to use a resolution superior to 1024x768 with Xorg. Inspired by this patch I digged out from the vgabios mailing list: http://old.nabble.com/VBE-BIOS-support-for-monitor-information-(EDID)-td229… Untested with Xorg. Signed-off-by: Julian Pidancet <julian.pidancet(a)gmail.com> Signed-off-by: Hiroshi Miura <miurahr(a)linux.com> --- vgasrc/bochsvga.c | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++++ vgasrc/bochsvga.h | 2 ++ vgasrc/vgahw.h | 4 +++ 3 files changed, 94 insertions(+)

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[PATCH 1/6] vgasrc: Add skeleton for VBE function 15h (VBE/DDC Standard)
by Hiroshi Miura 01 Sep '12

01 Sep '12

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[PATCH 6/6] vgabios: bochs support ddc preferred mode
by Hiroshi Miura 01 Sep '12

01 Sep '12

It provide a selection feature of preferred resolution from Bochs DISPI XRES API in bochsvga driver. Signed-off-by: Hiroshi Miura <miurahr(a)linux.com> --- vgasrc/bochsvga.c | 2 ++ 1 file changed, 2 insertions(+)

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[PATCH 3/6] vgabios: vbe 15h func returns constructed EDID
by Hiroshi Miura(＠osmf) 01 Sep '12

01 Sep '12

The Bochs VGA ROM now return an information about a recent WIDE monitor. It is constructed from defitions at run time. Returning an EDID with decent timings may be necessary in case we want to use a resolution superior to 1024x768 with Xorg. Signed-off-by: Hiroshi Miura <miurahr(a)linux.com> --- vgasrc/bochsvga.c | 202 ++++++++++++++++++++++++++++++++--------------------- vgasrc/vbe_edid.h | 134 +++++++++++++++++++++++++++++++++++ 2 files changed, 255 insertions(+), 81 deletions(-) create mode 100644 vgasrc/vbe_edid.h

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[PATCH 2/6] bochsvga: Implement vbe 15h function
by Hiroshi Miura(＠osmf) 01 Sep '12

01 Sep '12

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[ANNOUNCE] SeaBIOS 1.7.1
by Kevin O'Connor 31 Aug '12

31 Aug '12

The 1.7.1 version of SeaBIOS has now been released. For more information on the release, please see: http://seabios.org/Releases New in this release: * Initial support for booting from USB attached scsi (USB UAS) drives * USB EHCI 64bit controller support * USB MSC multi-LUN device support * Support for booting from LSI SCSI controllers on emulators * Support for booting from AMD PCscsi controllers on emulators * New PCI allocation code on emulators. Support 64bit PCI bars and mapping them above 4G. * Support for non-linear APIC ids on emulators. * Stack switching for 16bit real mode irq handlers to reduce stack footprint. * Support for custom storage in the memory at 0xc0000-0xf0000. No longer reserve memory for custom storage in first 640k. * Improved code generation for 16bit segment register loads * Boot code will now (by default) reboot after 60 seconds if no boot device found * CBFS and FWCFG "files" are now only scanned one time * Several bug fixes For information on obtaining SeaBIOS, please see: http://seabios.org/Download

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