SeaBIOS

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3801 discussions

USB keyboard and mouse not detected
by Nils 28 Dec '11

28 Dec '11

Hi all, I am having some problems with SeaBIOS from git (9-december-2011). My USB keyboard and USB mouse are not detected. EHCI and OHCI are being init but no further actions. I can not use my keyboard in SeaBIOS and Grub. USB keyboard and USB mouse are enabled in SeaBIOS .config . The Linux kernel does detect them and i can use them in Linux. I hope someone could give me some clue on what i am doing wrong. Also see attached SeaBIOS and kernel log's and .config . Thanks,Nils.

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Re: [SeaBIOS] [PATCH 0/6] Misc VGA BIOS updates
by Nils 25 Dec '11

25 Dec '11

Hi Kevin, You wrote: >Over the last few days I've been looking through the vga bios code, >and I observed some areas for improvement. > >-Kevin > > >Kevin O'Connor (6): > vgabios: Define video_save_pointer_table layout. > vgabios: Minor - use segoff_s for static_functionality ptr. > vgabios: Extend information in internal vgamode_s struct. > vgabios: Use vgamode_s instead of video_param_table in code. > vgabios: Generate video_param_table at runtime. > vgabios: Place a signature at offset 0x1e of the rom. With that patchset i get following error: Compiling whole program out/vgaccode.16.s vgasrc/vgatables.c: In function 'build_video_param': vgasrc/vgatables.c:66: warning: implicit declaration of function 'memcpy_far' src/util.c:163: note: previous definition of 'memcpy_far' was here vgasrc/vgatables.c:66: error: incompatible implicit declaration of function 'memcpy_far' src/util.c:163: note: previous definition of 'memcpy_far' was here make: *** [out/vgaccode.16.s] Error 1 Thanks, Nils.

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SeaBIOS GIT compile errors
by Nils 24 Dec '11

24 Dec '11

Hi all, I was trying to test the latest vga patches but i encountered several compile errors. These are the errors i get when i compile vanilla SeaBIOS GIT: Compiling whole program out/vgaccode.16.s vgasrc/clext.c: In function 'cirrus_extbios_80h': vgasrc/clext.c:438: error: dereferencing pointer to incomplete type vgasrc/clext.c:441: error: dereferencing pointer to incomplete type vgasrc/clext.c:443: error: dereferencing pointer to incomplete type vgasrc/clext.c:444: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_extbios_81h': vgasrc/clext.c:452: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_extbios_82h': vgasrc/clext.c:460: error: dereferencing pointer to incomplete type vgasrc/clext.c:461: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_extbios_85h': vgasrc/clext.c:467: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_extbios_9Ah': vgasrc/clext.c:473: error: dereferencing pointer to incomplete type vgasrc/clext.c:474: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_extbios_A0h': vgasrc/clext.c:488: error: dereferencing pointer to incomplete type vgasrc/clext.c:489: error: dereferencing pointer to incomplete type vgasrc/clext.c:490: error: dereferencing pointer to incomplete type vgasrc/clext.c:491: error: dereferencing pointer to incomplete type vgasrc/clext.c:491: error: dereferencing pointer to incomplete type vgasrc/clext.c:491: error: dereferencing pointer to incomplete type vgasrc/clext.c:491: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_extbios_A1h': vgasrc/clext.c:497: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_extbios_A2h': vgasrc/clext.c:503: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_extbios_AEh': vgasrc/clext.c:509: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_extbios': vgasrc/clext.c:516: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_vesa_not_handled': vgasrc/clext.c:638: error: dereferencing pointer to incomplete type vgasrc/clext.c: In function 'cirrus_vesa': vgasrc/clext.c:644: error: dereferencing pointer to incomplete type make: *** [out/vgaccode.16.s] Error 1 Thanks,Nils.

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Re: [SeaBIOS] Updated Geode vga bios
by Nils 24 Dec '11

24 Dec '11

Hi Kevin, you wrote: >I went through the latest Geode VGA BIOS patch and updated it to merge >with the current tree. I also fixed it up so that it doesn't need to >modify the common code. > >Unfortunately, I have no ability to test this code. So, I don't know >if it works properly. Hopefully someone with the hardware can run a >test. The last weeks the VGA code is changing rapidly, very nice. Thanks to all involved. I use a patched version that was almost ready to send.(just a little cleanup) I will look at your patch and adapt it to Geode GX2. I can only test on GX2, i don't have a LX but it only needs some minor patching. Thanks,Nils.

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Updated Geode vga bios
by Kevin O'Connor 24 Dec '11

24 Dec '11

I went through the latest Geode VGA BIOS patch and updated it to merge with the current tree. I also fixed it up so that it doesn't need to modify the common code. Unfortunately, I have no ability to test this code. So, I don't know if it works properly. Hopefully someone with the hardware can run a test. -Kevin

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[PATCH 0/6] Misc VGA BIOS updates
by Kevin O'Connor 24 Dec '11

24 Dec '11

Over the last few days I've been looking through the vga bios code, and I observed some areas for improvement. -Kevin Kevin O'Connor (6): vgabios: Define video_save_pointer_table layout. vgabios: Minor - use segoff_s for static_functionality ptr. vgabios: Extend information in internal vgamode_s struct. vgabios: Use vgamode_s instead of video_param_table in code. vgabios: Generate video_param_table at runtime. vgabios: Place a signature at offset 0x1e of the rom. vgasrc/vga.c | 28 ++-- vgasrc/vgaentry.S | 4 + vgasrc/vgafb.c | 9 +- vgasrc/vgaio.c | 16 +- vgasrc/vgatables.c | 461 ++++++++++++++++++++++++---------------------------- vgasrc/vgatables.h | 31 ++-- 6 files changed, 256 insertions(+), 293 deletions(-) -- 1.7.6.4

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[PATCH V2 0/9] Initial VBE ROM support
by Julian Pidancet 21 Dec '11

21 Dec '11

This patch set contain ground work for a working VBE implementation. It adds several things: * A configuration menu in seabios Kconfig * The ability to generate a PCI ROM * A skeleton driver to implement the VBE interface Bonus: * Preliminary BOCHS (DISPI) VBE support. Julian Pidancet (9): Rename CONFIG_VBE in CONFIG_VGA_BOCHS and CONFIG_CIRRUS in CONFIG_VGA_CIRRUS Move optionroms definitions into a separate header Add a PCI header to the VGA ROM if needed Add configuration menu for the VGA ROM buildrom.py: Handle image size in PCI header Add vbe_flag field in BDA Merge bootsplash and VGA ROM vbe structure definitions Partially implement VBE interface, create VBE driver skeleton Preliminary DISPI VBE driver implementation Makefile | 2 +- src/Kconfig | 39 ++++++ src/biosvar.h | 3 +- src/bootsplash.c | 86 ++----------- src/optionroms.c | 53 +-------- src/optionroms.h | 59 +++++++++ src/vbe.h | 157 ++++++++++++++++++++++++ tools/buildrom.py | 5 + vgasrc/dispi.h | 55 +++++++++ vgasrc/vbe.c | 340 ++++++++++++++++++++++++++++++++++++++++++++++++++++ vgasrc/vga.c | 299 ++++++++++++++++++++++++++++++++++++++------- vgasrc/vgaentry.S | 11 ++- vgasrc/vgatables.h | 31 ++++- 13 files changed, 962 insertions(+), 178 deletions(-) create mode 100644 src/optionroms.h create mode 100644 src/vbe.h create mode 100644 vgasrc/dispi.h create mode 100644 vgasrc/vbe.c -- Julian Pidancet

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Re: [SeaBIOS] [PATCH RFC 5/7] Add PMM memory allocation facilities for VGA option ROMs
by Kevin O'Connor 21 Dec '11

21 Dec '11

On Tue, Dec 20, 2011 at 11:59:16AM +0000, Mark Marshall wrote: > According to the bits of the PCI spec that I can find, > the option ROM is copied into RAM which is left read-write > while the initialisation vector is called, and the RAM is > then set to read-only after this time. Does your VGA option > ROM use this feature? Do you know of any other's that do? Yes - the SeaBIOS vga rom will self modify. I've seen several other option roms that self modify. > (This is in the V2.1 and V3.0 PCI spec's. Also in at least > the V3.0 PCI spec is says that the initialisation code is > run in "big real mode", with 4G segments, do you know of > any code that uses this feature?). Yes - I've seen other option roms that only work when called in big-real mode. SeaBIOS supports this. The SeaBIOS vga option rom doesn't require it though. > PS. > I'm interested in this because I wrote the OGP VGA BIOS > (in 16-bit x86 ASM), a while ago now. A choice made for > two reasons really: 1, I hadn't found SeaBIOS (And didn't > know quite how well you could get gcc to produce 16-bit > code), and 2, I really wanted to write a chunk of 16-bit > assembler (this was a hobby, not work, so I felt I could > make a crazy choice like that and get away with it). > > If I get a free afternoon, I will try to convert that code > to use the SeaBIOS VGA framework. It's interesting to note > that we have both implemented features that are not in the > other's BIOS. Sounds interesting. -Kevin

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Re: [SeaBIOS] [PATCH RFC 5/7] Add PMM memory allocation facilities for VGA option ROMs
by Julian Pidancet 20 Dec '11

20 Dec '11

On Tue, Dec 20, 2011 at 11:59 AM, Mark Marshall <Mark.Marshall(a)csr.com> wrote: > Hi. > > This patch series looks very interesting to me. > This patch has been dropped from the V2 series? > > According to the bits of the PCI spec that I can find, > the option ROM is copied into RAM which is left read-write > while the initialisation vector is called, and the RAM is > then set to read-only after this time. Does your VGA option > ROM use this feature? Do you know of any other's that do? > (This is in the V2.1 and V3.0 PCI spec's. Also in at least > the V3.0 PCI spec is says that the initialisation code is > run in "big real mode", with 4G segments, do you know of > any code that uses this feature?). > > (I understand that you might be using PMM memory because > you want read-write memory at run time, so my comments > might not be of help, but you could at least store the > pointer to your block in the ROM. I have found some BIOSs > that do modify the ROM image in this way (another common > thing to store is the PCI BDF of the device, and the BAR > locations).) > If you want to look at how I use the PMM stuff, you can see it here: https://github.com/jpidancet/seabios/blob/xengfx/vgasrc/xengfx.c Among all the global variables that I use in this driver, only one really needs to be writable at runtime (after the initialization vector is called), which is current_mode which holds the current vesa mode number. The BOCHS driver version I submitted in the V2 is inspired from BOCHS LGPL'd vgabios (http://nongnu.org/vgabios/), which stores the vesa mode number in the BIOS BDA segment. Every OS has his own way of executing the VGA ROM, and often first check that the checksum of the ROM image is correct before calling it. That's why variables located inside the image really need to be read only after the initialization, you can also see that we rechecksum the image at the end of the initialization vector. -- Julian

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Re: [SeaBIOS] [PATCH RFC 5/7] Add PMM memory allocation facilities for VGA option ROMs
by Mark Marshall 20 Dec '11

20 Dec '11

Hi. This patch series looks very interesting to me. This patch has been dropped from the V2 series? According to the bits of the PCI spec that I can find, the option ROM is copied into RAM which is left read-write while the initialisation vector is called, and the RAM is then set to read-only after this time. Does your VGA option ROM use this feature? Do you know of any other's that do? (This is in the V2.1 and V3.0 PCI spec's. Also in at least the V3.0 PCI spec is says that the initialisation code is run in "big real mode", with 4G segments, do you know of any code that uses this feature?). (I understand that you might be using PMM memory because you want read-write memory at run time, so my comments might not be of help, but you could at least store the pointer to your block in the ROM. I have found some BIOSs that do modify the ROM image in this way (another common thing to store is the PCI BDF of the device, and the BAR locations).) Thanks for the good work, MM PS. I'm interested in this because I wrote the OGP VGA BIOS (in 16-bit x86 ASM), a while ago now. A choice made for two reasons really: 1, I hadn't found SeaBIOS (And didn't know quite how well you could get gcc to produce 16-bit code), and 2, I really wanted to write a chunk of 16-bit assembler (this was a hobby, not work, so I felt I could make a crazy choice like that and get away with it). If I get a free afternoon, I will try to convert that code to use the SeaBIOS VGA framework. It's interesting to note that we have both implemented features that are not in the other's BIOS. > -----Original Message----- > From: seabios-bounces(a)seabios.org [mailto:seabios-bounces@seabios.org] > On Behalf Of Julian Pidancet > Sent: 16 December 2011 14:15 > To: seabios(a)seabios.org > Cc: Julian Pidancet > Subject: [SeaBIOS] [PATCH RFC 5/7] Add PMM memory allocation facilities > for VGA option ROMs > > This patch implements a way for option ROMs to allocate some space > using the bios PMM interface. > > Since the VGA option ROM is placed in read only memory, the only way to > get memory to store global variables is either use the EBDA, or use the > PMM if the BIOS supports it. > > This simple patchs adds only pmm_scan and pmm_allocate. The first one > is used to scan the memory and find the PMM entry point, the second one > is used to request the BIOS to allocate blocks of memory. > > The pmm_find and pmm_deallocate functions are yet to be implemented. > > Signed-off-by: Julian Pidancet <julian.pidancet(a)gmail.com> > --- > Makefile | 2 +- > vgasrc/pmm.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ > vgasrc/pmm.h | 16 ++++++++++++++++ > 3 files changed, 67 insertions(+), 1 deletions(-) create mode 100644 > vgasrc/pmm.c create mode 100644 vgasrc/pmm.h > > diff --git a/Makefile b/Makefile > index cb00958..1b8ba60 100644 > --- a/Makefile > +++ b/Makefile > @@ -171,7 +171,7 @@ $(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o > tools/checkrom.py > > # VGA src files > SRCVGA=src/output.c src/util.c vgasrc/vga.c vgasrc/vgafb.c > vgasrc/vgaio.c \ > - vgasrc/vgatables.c vgasrc/vgafonts.c vgasrc/clext.c > + vgasrc/vgatables.c vgasrc/vgafonts.c vgasrc/clext.c > vgasrc/pmm.c > > $(OUT)vgaccode.16.s: $(OUT)autoconf.h ; $(call whole-compile, > $(CFLAGS16) -S -Isrc, $(SRCVGA),$@) > > diff --git a/vgasrc/pmm.c b/vgasrc/pmm.c new file mode 100644 index > 0000000..1732149 > --- /dev/null > +++ b/vgasrc/pmm.c > @@ -0,0 +1,50 @@ > +#include "biosvar.h" // GET_GLOBAL > +#include "util.h" // memset > + > +#define PMM_SIGNATURE 0x4d4d5024 // $PMM > + > +struct pmmheader { > + u32 signature; > + u8 version; > + u8 length; > + u8 checksum; > + u16 entry_offset; > + u16 entry_seg; > + u8 reserved[5]; > +} PACKED; > + > +u32 pmm_allocate(u16 seg, u32 length, u32 handle, u16 flags) { > + u16 ax, dx; > + > + asm volatile ("movw %2, %%es\n" > + "pushw %3\n" > + "pushl %4\n" > + "pushl %5\n" > + "pushw $0x0\n" /* PMM_ALLOCATE */ > + "lcallw *%%es:7\n" > + "addw $12, %%sp\n" > + : "=a"(ax), "=d"(dx) > + : "r"(seg), "r"(flags), "r"(handle), "r"(length) > + : "cc", "memory"); > + > + return (dx << 16) | ax; > +} > + > +u16 pmm_scan(void) > +{ > + u16 seg; > + struct pmmheader *hdr = (struct pmmheader *)0; > + > + for (seg = 0xe000; seg; seg++) { > + u32 val = GET_FARVAR(seg, hdr->signature); > + > + if (val == PMM_SIGNATURE && > + !checksum_far(seg, hdr, GET_FARVAR(seg, hdr->length))) { > + return seg; > + } > + } > + > + return 0; > +} > + > diff --git a/vgasrc/pmm.h b/vgasrc/pmm.h new file mode 100644 index > 0000000..f6479ad > --- /dev/null > +++ b/vgasrc/pmm.h > @@ -0,0 +1,16 @@ > +#include "biosvar.h" // GET_GLOBAL > +#include "util.h" // memset > + > +#define PMM_MEMORY_TYPE_INVALID (0 << 0) > +#define PMM_MEMORY_TYPE_CONVENTION (1 << 0) > +#define PMM_MEMORY_TYPE_EXTENDED (2 << 0) > + > +#define PMM_BLOCK_NOT_ALIGNED (0 << 2) > +#define PMM_BLOCK_ALIGNED (1 << 2) > + > +/* Only in PCI FW spec: */ > +#define PMM_MEMORY_ATTR_TEMPORARY (0 << 3) #define > +PMM_MEMORY_ATTR_PERMANENT (1 << 3) > + > +u32 pmm_allocate(u16 seg, u32 length, u32 handle, u16 flags); > +u16 pmm_scan(void); > -- > Julian Pidancet > > > _______________________________________________ > SeaBIOS mailing list > SeaBIOS(a)seabios.org > http://www.seabios.org/mailman/listinfo/seabios > > > To report this email as spam click > https://www.mailcontrol.com/sr/wQw0zmjPoHdJTZGyOCrrhg== > N4EPHlMQCanThnVWsae6Oy8ZbXXZMxLUPl5hUYCj!eKynw== . Member of the CSR plc group of companies. CSR plc registered in England and Wales, registered number 4187346, registered office Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom More information can be found at www.csr.com. Follow CSR on Twitter at http://twitter.com/CSR_PLC and read our blog at www.csr.com/blog

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