diff options
Diffstat (limited to 'drivers/char/toshiba.c')
| -rw-r--r-- | drivers/char/toshiba.c | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/drivers/char/toshiba.c b/drivers/char/toshiba.c index 0c6f521abd0e..e2fb234dee40 100644 --- a/drivers/char/toshiba.c +++ b/drivers/char/toshiba.c @@ -355,14 +355,14 @@ static void tosh_set_fn_port(void) /* * Get the machine identification number of the current model */ -static int tosh_get_machine_id(void) +static int tosh_get_machine_id(void __iomem *bios) { int id; SMMRegisters regs; unsigned short bx,cx; unsigned long address; - id = (0x100*(int) isa_readb(0xffffe))+((int) isa_readb(0xffffa)); + id = (0x100*(int) readb(bios+0xfffe))+((int) readb(bios+0xfffa)); /* do we have a SCTTable machine identication number on our hands */ @@ -388,12 +388,12 @@ static int tosh_get_machine_id(void) /* now twiddle with our pointer a bit */ - address = 0x000f0000+bx; - cx = isa_readw(address); - address = 0x000f0009+bx+cx; - cx = isa_readw(address); - address = 0x000f000a+cx; - cx = isa_readw(address); + address = bx; + cx = readw(bios + address); + address = 9+bx+cx; + cx = readw(bios + address); + address = 0xa+cx; + cx = readw(bios + address); /* now construct our machine identification number */ @@ -416,13 +416,18 @@ static int tosh_probe(void) int i,major,minor,day,year,month,flag; unsigned char signature[7] = { 0x54,0x4f,0x53,0x48,0x49,0x42,0x41 }; SMMRegisters regs; + void __iomem *bios = ioremap(0xf0000, 0x10000); + + if (!bios) + return -ENOMEM; /* extra sanity check for the string "TOSHIBA" in the BIOS because some machines that are not Toshiba's pass the next test */ for (i=0;i<7;i++) { - if (isa_readb(0xfe010+i)!=signature[i]) { + if (readb(bios+0xe010+i)!=signature[i]) { printk("toshiba: not a supported Toshiba laptop\n"); + iounmap(bios); return -ENODEV; } } @@ -438,6 +443,7 @@ static int tosh_probe(void) if ((flag==1) || ((regs.eax & 0xff00)==0x8600)) { printk("toshiba: not a supported Toshiba laptop\n"); + iounmap(bios); return -ENODEV; } @@ -447,19 +453,19 @@ static int tosh_probe(void) /* next get the machine ID of the current laptop */ - tosh_id = tosh_get_machine_id(); + tosh_id = tosh_get_machine_id(bios); /* get the BIOS version */ - major = isa_readb(0xfe009)-'0'; - minor = ((isa_readb(0xfe00b)-'0')*10)+(isa_readb(0xfe00c)-'0'); + major = readb(bios+0xe009)-'0'; + minor = ((readb(bios+0xe00b)-'0')*10)+(readb(bios+0xe00c)-'0'); tosh_bios = (major*0x100)+minor; /* get the BIOS date */ - day = ((isa_readb(0xffff5)-'0')*10)+(isa_readb(0xffff6)-'0'); - month = ((isa_readb(0xffff8)-'0')*10)+(isa_readb(0xffff9)-'0'); - year = ((isa_readb(0xffffb)-'0')*10)+(isa_readb(0xffffc)-'0'); + day = ((readb(bios+0xfff5)-'0')*10)+(readb(bios+0xfff6)-'0'); + month = ((readb(bios+0xfff8)-'0')*10)+(readb(bios+0xfff9)-'0'); + year = ((readb(bios+0xfffb)-'0')*10)+(readb(bios+0xfffc)-'0'); tosh_date = (((year-90) & 0x1f)<<10) | ((month & 0xf)<<6) | ((day & 0x1f)<<1); @@ -476,6 +482,8 @@ static int tosh_probe(void) if ((tosh_id==0xfccb) || (tosh_id==0xfccc)) tosh_fan = 1; + iounmap(bios); + return 0; } |