diff options
Diffstat (limited to 'arch/i386/kernel/acpi')
-rw-r--r-- | arch/i386/kernel/acpi/wakeup.S | 41 |
1 files changed, 10 insertions, 31 deletions
diff --git a/arch/i386/kernel/acpi/wakeup.S b/arch/i386/kernel/acpi/wakeup.S index ed0a0f2c1597..f22ba8534d26 100644 --- a/arch/i386/kernel/acpi/wakeup.S +++ b/arch/i386/kernel/acpi/wakeup.S | |||
@@ -151,51 +151,30 @@ bogus_real_magic: | |||
151 | #define VIDEO_FIRST_V7 0x0900 | 151 | #define VIDEO_FIRST_V7 0x0900 |
152 | 152 | ||
153 | # Setting of user mode (AX=mode ID) => CF=success | 153 | # Setting of user mode (AX=mode ID) => CF=success |
154 | |||
155 | # For now, we only handle VESA modes (0x0200..0x03ff). To handle other | ||
156 | # modes, we should probably compile in the video code from the boot | ||
157 | # directory. | ||
154 | mode_set: | 158 | mode_set: |
155 | movw %ax, %bx | 159 | movw %ax, %bx |
156 | #if 0 | 160 | subb $VIDEO_FIRST_VESA>>8, %bh |
157 | cmpb $0xff, %ah | 161 | cmpb $2, %bh |
158 | jz setalias | 162 | jb check_vesa |
159 | |||
160 | testb $VIDEO_RECALC>>8, %ah | ||
161 | jnz _setrec | ||
162 | |||
163 | cmpb $VIDEO_FIRST_RESOLUTION>>8, %ah | ||
164 | jnc setres | ||
165 | |||
166 | cmpb $VIDEO_FIRST_SPECIAL>>8, %ah | ||
167 | jz setspc | ||
168 | |||
169 | cmpb $VIDEO_FIRST_V7>>8, %ah | ||
170 | jz setv7 | ||
171 | #endif | ||
172 | |||
173 | cmpb $VIDEO_FIRST_VESA>>8, %ah | ||
174 | jnc check_vesa | ||
175 | #if 0 | ||
176 | orb %ah, %ah | ||
177 | jz setmenu | ||
178 | #endif | ||
179 | |||
180 | decb %ah | ||
181 | # jz setbios Add bios modes later | ||
182 | 163 | ||
183 | setbad: clc | 164 | setbad: |
165 | clc | ||
184 | ret | 166 | ret |
185 | 167 | ||
186 | check_vesa: | 168 | check_vesa: |
187 | subb $VIDEO_FIRST_VESA>>8, %bh | ||
188 | orw $0x4000, %bx # Use linear frame buffer | 169 | orw $0x4000, %bx # Use linear frame buffer |
189 | movw $0x4f02, %ax # VESA BIOS mode set call | 170 | movw $0x4f02, %ax # VESA BIOS mode set call |
190 | int $0x10 | 171 | int $0x10 |
191 | cmpw $0x004f, %ax # AL=4f if implemented | 172 | cmpw $0x004f, %ax # AL=4f if implemented |
192 | jnz _setbad # AH=0 if OK | 173 | jnz setbad # AH=0 if OK |
193 | 174 | ||
194 | stc | 175 | stc |
195 | ret | 176 | ret |
196 | 177 | ||
197 | _setbad: jmp setbad | ||
198 | |||
199 | .code32 | 178 | .code32 |
200 | ALIGN | 179 | ALIGN |
201 | 180 | ||