aboutsummaryrefslogtreecommitdiffstats
path: root/arch/i386/kernel/acpi
diff options
context:
space:
mode:
Diffstat (limited to 'arch/i386/kernel/acpi')
-rw-r--r--arch/i386/kernel/acpi/wakeup.S41
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.
154mode_set: 158mode_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
183setbad: clc 164setbad:
165 clc
184 ret 166 ret
185 167
186check_vesa: 168check_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