diff options
Diffstat (limited to 'src/northbridge/via/vx800/vgabios.c')
| -rw-r--r-- | src/northbridge/via/vx800/vgabios.c | 52 |
1 files changed, 18 insertions, 34 deletions
diff --git a/src/northbridge/via/vx800/vgabios.c b/src/northbridge/via/vx800/vgabios.c index 6155a79581..34d3bce939 100644 --- a/src/northbridge/via/vx800/vgabios.c +++ b/src/northbridge/via/vx800/vgabios.c @@ -7,7 +7,6 @@ #include <string.h> #include "vgachip.h" - /* vgabios.c. Derived from: */ /*------------------------------------------------------------ -*- C -*- @@ -306,7 +305,7 @@ void do_vgabios(void) /* clear vga bios data area */ for (i = 0x400; i < 0x500; i++) { - *(unsigned char *) i = 0; + *(unsigned char *)i = 0; } dev = dev_find_class(PCI_CLASS_DISPLAY_VGA << 8, 0); @@ -315,8 +314,7 @@ void do_vgabios(void) printk_debug("NO VGA FOUND\n"); return; } - printk_debug("found VGA: vid=%x, did=%x\n", dev->vendor, - dev->device); + printk_debug("found VGA: vid=%x, did=%x\n", dev->vendor, dev->device); /* declare rom address here - keep any config data out of the way * of core LXB stuff */ @@ -324,28 +322,25 @@ void do_vgabios(void) rom = 0xffffffff - FULL_ROM_SIZE + 1; pci_write_config32(dev, PCI_ROM_ADDRESS, rom | 1); printk_debug("rom base: %x\n", rom); - buf = (unsigned char *) rom; + buf = (unsigned char *)rom; printk_emerg("file '%s', line %d\n\n", __FILE__, __LINE__); if ((buf[0] == 0x55) && (buf[1] == 0xaa)) { - memcpy((void *) 0xc0000, buf, size); - + memcpy((void *)0xc0000, buf, size); printk_emerg("file '%s', line %d\n\n", __FILE__, __LINE__); write_protect_vgabios(); // in northbridge // check signature again - buf = (unsigned char *) 0xc0000; + buf = (unsigned char *)0xc0000; if (buf[0] == 0x55 && buf[1] == 0xAA) { busdevfn = - (dev->bus->secondary << 8) | dev->path.pci. - devfn; + (dev->bus->secondary << 8) | dev->path.pci.devfn; printk_debug("bus/devfn = %#x\n", busdevfn); real_mode_switch_call_vga(busdevfn); } else - printk_debug - ("Failed to copy VGA BIOS to 0xc0000\n"); + printk_debug("Failed to copy VGA BIOS to 0xc0000\n"); } else printk_debug("BAD SIGNATURE 0x%x 0x%x\n", buf[0], buf[1]); @@ -354,7 +349,6 @@ void do_vgabios(void) pci_write_config32(dev, PCI_ROM_ADDRESS, 0); } - // we had hoped to avoid this. // this is a stub IDT only. It's main purpose is to ignore calls // to the BIOS. @@ -399,8 +393,7 @@ void debughandler(void) " loop dbh1 \n" " popw %cx \n" " iret \n" - "end_debughandle: \n" - ".code32 \n"); + "end_debughandle: \n" ".code32 \n"); } // Calling conventions. The first C function is called with this stuff @@ -492,8 +485,7 @@ enum { int pcibios(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp, unsigned long *pesp, unsigned long *pebx, unsigned long *pedx, - unsigned long *pecx, unsigned long *peax, - unsigned long *pflags); + unsigned long *pecx, unsigned long *peax, unsigned long *pflags); int handleint21(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp, unsigned long *pesp, @@ -536,8 +528,7 @@ int biosint(unsigned long intnumber, if (esp < 0x1000) { printk_debug("Stack contents: "); while (esp < 0x1000) { - printk_debug("0x%04x ", - *(unsigned short *) esp); + printk_debug("0x%04x ", *(unsigned short *)esp); esp += 2; } printk_debug("\n"); @@ -573,14 +564,13 @@ int biosint(unsigned long intnumber, return ret; } - void setup_realmode_idt(void) { extern unsigned char idthandle, end_idthandle; extern unsigned char debughandle, end_debughandle; int i; - struct realidt *idts = (struct realidt *) 0; + struct realidt *idts = (struct realidt *)0; int codesize = &end_idthandle - &idthandle; unsigned char *intbyte, *codeptr; @@ -595,8 +585,8 @@ void setup_realmode_idt(void) // and get it that way. But that's really disgusting. for (i = 0; i < 256; i++) { idts[i].cs = 0; - codeptr = (char *) 4096 + i * codesize; - idts[i].offset = (unsigned) codeptr; + codeptr = (char *)4096 + i * codesize; + idts[i].offset = (unsigned)codeptr; memcpy(codeptr, &idthandle, codesize); intbyte = codeptr + 3; *intbyte = i; @@ -608,7 +598,7 @@ void setup_realmode_idt(void) // int10. // calling convention here is the same as INTs, we can reuse // the int entry code. - codeptr = (char *) 0xff065; + codeptr = (char *)0xff065; memcpy(codeptr, &idthandle, codesize); intbyte = codeptr + 3; *intbyte = 0x42; /* int42 is the relocated int10 */ @@ -617,7 +607,7 @@ void setup_realmode_idt(void) VBIOS will call f000:f859 instead of sending int15. calling convertion here is the same as INTs, we can reuse the int entry code. */ - codeptr = (char *) 0xff859; + codeptr = (char *)0xff859; memcpy(codeptr, &idthandle, codesize); intbyte = codeptr + 3; *intbyte = 0x15; @@ -628,11 +618,8 @@ void setup_realmode_idt(void) idts[1].offset = 16384; memcpy(16384, &debughandle, &end_debughandle - &debughandle); - } - - enum { CHECK = 0xb001, FINDDEV = 0xb102, @@ -665,7 +652,7 @@ pcibios(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp, unsigned long ecx = *pecx; unsigned long eax = *peax; unsigned long flags = *pflags; - unsigned short func = (unsigned short) eax; + unsigned short func = (unsigned short)eax; int retval = 0; unsigned short devid, vendorid, devfn; short devindex; /* Use short to get rid of garbage in upper half of 32-bit register */ @@ -684,8 +671,7 @@ pcibios(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp, vendorid = *pedx; devindex = *pesi; dev = 0; - while ((dev = - dev_find_device(vendorid, devid, dev))) { + while ((dev = dev_find_device(vendorid, devid, dev))) { if (devindex <= 0) break; devindex--; @@ -775,7 +761,6 @@ pcibios(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp, return retval; } - /* return value of int0x15(int21) AH AL Completion status ?? 5Fh Function call supported @@ -785,8 +770,7 @@ AH AL Completion status */ int handleint21(unsigned long *edi, unsigned long *esi, unsigned long *ebp, unsigned long *esp, unsigned long *ebx, unsigned long *edx, - unsigned long *ecx, unsigned long *eax, - unsigned long *flags) + unsigned long *ecx, unsigned long *eax, unsigned long *flags) { int res = -1; switch (*eax & 0xffff) { |