diff options
Diffstat (limited to 'sys/dev/atkbdc/atkbd.c')
| -rw-r--r-- | sys/dev/atkbdc/atkbd.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/sys/dev/atkbdc/atkbd.c b/sys/dev/atkbdc/atkbd.c index 59d9632..600020f 100644 --- a/sys/dev/atkbdc/atkbd.c +++ b/sys/dev/atkbdc/atkbd.c @@ -1091,32 +1091,35 @@ get_typematic(keyboard_t *kbd) { #if defined(__i386__) || defined(__amd64__) /* - * Only some systems allow us to retrieve the keyboard repeat + * Only some systems allow us to retrieve the keyboard repeat * rate previously set via the BIOS... */ x86regs_t regs; uint8_t *p; + if (x86bios_get_intr(0x15) == 0 || x86bios_get_intr(0x16) == 0) + return (ENODEV); + /* Is BIOS system configuration table supported? */ - bzero(®s, sizeof(regs)); + x86bios_init_regs(®s); regs.R_AH = 0xc0; x86bios_intr(®s, 0x15); if ((regs.R_FLG & PSL_C) != 0 || regs.R_AH != 0) return (ENODEV); - /* Is int 16, function 0x09 supported? */ + /* Is int 0x16, function 0x09 supported? */ p = x86bios_offset((regs.R_ES << 4) + regs.R_BX); if (readw(p) < 5 || (readb(p + 6) & 0x40) == 0) return (ENODEV); - /* Is int 16, function 0x0306 supported? */ - bzero(®s, sizeof(regs)); + /* Is int 0x16, function 0x0306 supported? */ + x86bios_init_regs(®s); regs.R_AH = 0x09; x86bios_intr(®s, 0x16); if ((regs.R_AL & 0x08) == 0) return (ENODEV); - bzero(®s, sizeof(regs)); + x86bios_init_regs(®s); regs.R_AX = 0x0306; x86bios_intr(®s, 0x16); kbd->kb_delay1 = typematic_delay(regs.R_BH << 5); |
