Aren/haiku
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

added workaround for non-mapped ROMS: getting it from legacy ISA mapping if the PCI config resource manager did not assign an adress for PCI style ROM mapping. Our PCI config manager needs to do this mapping! Be's devices doesn't even mention it. (maybe currently BeOS is relying on the system BIOS to map the ROM PCI style?, but I think BeOS should tell the user about the mapping in 'devices' anyway..)

Browse Source 
Ah, well: it works now :)


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8286 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rudolf Cornelissen 2004-07-03 16:47:59 +00:00
parent 9a663361f2
commit 07587c7b9f
1 changed files with 27 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
src/add-ons/kernel/drivers/graphics/nvidia/driver.c
View File

@ -515,19 +515,35 @@ static status_t map_device(device_info *di)
* however the actual ROM content (so the used part) is intact (confirmed). */
//set_pci(NVCFG_ROMSHADOW, 4, 0);
/* enable ROM decoding - this is defined in the PCI standard */
/* get ROM memory mapped base adress - this is defined in the PCI standard */
tmpUlong = get_pci(PCI_rom_base, 4);
tmpUlong |= 0x00000001;
set_pci(PCI_rom_base, 4, tmpUlong);
if (tmpUlong)
{
/* ROM was assigned an adress, so enable ROM decoding - see PCI standard */
tmpUlong |= 0x00000001;
set_pci(PCI_rom_base, 4, tmpUlong);
rom_area = map_physical_memory(
buffer,
(void *)di->pcii.u.h0.rom_base_pci,
di->pcii.u.h0.rom_size,
B_ANY_KERNEL_ADDRESS,
B_READ_AREA,
(void **)&(rom_temp)
);
rom_area = map_physical_memory(
buffer,
(void *)di->pcii.u.h0.rom_base_pci,
di->pcii.u.h0.rom_size,
B_ANY_KERNEL_ADDRESS,
B_READ_AREA,
(void **)&(rom_temp)
);
}
else
{
/* ROM was not assigned an adress, fetch it from ISA legacy memory map! */
rom_area = map_physical_memory(
buffer,
(void *)0x000c0000,
65536,
B_ANY_KERNEL_ADDRESS,
B_READ_AREA,
(void **)&(rom_temp)
);
}
/* if mapping ROM to vmem failed then clean up and pass on error */
if (rom_area < 0) {