X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=bios%2Frombios%2Fapmbios.S;fp=bios%2Frombios%2Fapmbios.S;h=a010949f7d0a6048d5e490a0dd49f1c2d1e34f66;hp=0000000000000000000000000000000000000000;hb=d34450b1e6fe3c2e1295c268c1722c669ba8d545;hpb=1a24d4e8fb3918a42b124777db5b41940150023e

diff --git a/bios/rombios/apmbios.S b/bios/rombios/apmbios.S
new file mode 100644
index 0000000..a010949
--- /dev/null
+++ b/bios/rombios/apmbios.S
@@ -0,0 +1,367 @@
+//  APM BIOS support for the Bochs BIOS
+//  Copyright (C) 2004 Fabrice Bellard
+//
+//  Debugging extensions, 16-bit interface and extended power options
+//  Copyright (C) 2005 Struan Bartlett
+//
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2 of the License, or (at your option) any later version.
+//
+//  This library is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//  Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public
+//  License along with this library; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+
+#if defined(APM_REAL)
+#define APMSYM(s) apmreal_ ## s
+#elif defined(APM_PROT16)
+#define APMSYM(s) apm16_ ## s
+#elif defined(APM_PROT32)
+#define APMSYM(s) apm32_ ## s
+#else
+#error unsupported APM mode
+#endif
+
+APMSYM(out_str):      
+  push eax
+  push ebx
+  mov ebx, eax
+APMSYM(out_str1):
+  SEG CS
+  mov al, byte ptr [bx]
+  cmp al, #0
+  je APMSYM(out_str2)
+  outb dx, al
+  inc ebx
+  jmp APMSYM(out_str1)
+APMSYM(out_str2):
+  pop ebx
+  pop eax
+  ret
+  
+APMSYM(07_poweroff_str):
+  .ascii "Shutdown"
+  db 0
+APMSYM(07_suspend_str):
+  .ascii "Suspend"
+  db 0
+APMSYM(07_standby_str):
+  .ascii "Standby"
+  db 0
+  
+#if DEBUG_APM
+APMSYM(put_str):      
+  push edx
+  mov dx, #INFO_PORT
+  call APMSYM(out_str)
+  pop edx
+  ret
+  
+; print the hex number in eax
+APMSYM(put_num):      
+  push eax
+  push ebx
+  push ecx
+  push edx
+  mov ecx, eax
+  mov bx, #8
+  mov dx, #INFO_PORT
+APMSYM(put_num1):
+  mov eax, ecx
+  shr eax, #28
+  add al, #0x30
+  cmp al, #0x39
+  jbe APMSYM(put_num2)
+  add al, #0x27
+APMSYM(put_num2):
+  outb dx, al
+  shl ecx, #4
+  dec bx
+  jne APMSYM(put_num1)
+  pop edx
+  pop ecx
+  pop ebx
+  pop eax
+  ret
+
+APMSYM(put_reg):
+  outb dx, al
+  shr eax, #8
+  outb dx, al
+  shr eax, #8
+  outb dx, al
+  shr eax, #8
+  outb dx, al
+  
+  mov eax,ebx
+  call APMSYM(put_num)
+  
+  mov al, #0x3b
+  outb dx,al
+  mov al, #0x20
+  outb dx,al
+  ret  
+
+APMSYM(put_regs):
+  push eax
+  push edx
+  push ebx
+  mov dx, #INFO_PORT
+  
+  mov ebx, eax
+  mov eax, #0x3d584145 // 'EAX='
+  call APMSYM(put_reg)
+  pop ebx
+  push ebx
+  mov eax, #0x3d584245 // 'EBX='
+  call APMSYM(put_reg)
+  mov ebx, ecx
+  mov eax, #0x3d584345 // 'ECX='
+  call APMSYM(put_reg)
+  mov ebx, edx
+  mov eax, #0x3d584445 // 'EDX='
+  call APMSYM(put_reg)
+  mov ebx, esi
+  mov eax, #0x3d495345 // 'ESI='
+  call APMSYM(put_reg)
+  mov ebx, edi
+  mov eax, #0x3d494445 // 'EDI='
+  call APMSYM(put_reg)
+  
+  mov al, #0x0a
+  outb dx, al
+  pop ebx
+  pop edx
+  pop eax
+  ret
+#endif
+
+#if defined(APM_PROT32)
+_apm32_entry:
+#endif
+#if defined(APM_PROT16)
+_apm16_entry:
+#endif
+  pushf
+  
+#if defined(APM_REAL)
+_apmreal_entry:
+#endif
+
+#if DEBUG_APM
+  call APMSYM(put_regs)
+#endif
+
+#if defined(APM_REAL)
+;-----------------
+; APM installation check
+APMSYM(00):
+  cmp al, #0x00
+  jne APMSYM(01)
+
+  mov ah, #1 // APM major version
+  mov al, #2 // APM minor version
+  
+  mov bh, #0x50 // 'P'
+  mov bl, #0x4d // 'M'
+  
+  // bit 0 : 16 bit interface supported
+  // bit 1 : 32 bit interface supported
+  mov cx, #0x3
+  jmp APMSYM(ok)
+  
+;-----------------
+; APM real mode interface connect
+APMSYM(01):
+  cmp al, #0x01
+  jne APMSYM(02)
+  jmp APMSYM(ok)
+
+;-----------------
+; APM 16 bit protected mode interface connect
+APMSYM(02):
+  cmp al, #0x02
+  jne APMSYM(03)
+
+  mov bx, #_apm16_entry
+  
+  mov ax, #0xf000 // 16 bit code segment base
+  mov si, #0xfff0 // 16 bit code segment size
+  mov cx, #0xf000 // data segment address
+  mov di, #0xfff0 // data segment length
+  jmp APMSYM(ok)
+
+;-----------------
+; APM 32 bit protected mode interface connect
+APMSYM(03):
+  cmp al, #0x03
+  jne APMSYM(04)
+  mov ax, #0xf000 // 32 bit code segment base
+  mov ebx, #_apm32_entry
+  mov cx, #0xf000 // 16 bit code segment base
+  // 32 bit code segment size (low 16 bits)
+  // 16 bit code segment size (high 16 bits)
+  mov esi, #0xfff0fff0
+  mov dx, #0xf000 // data segment address
+  mov di, #0xfff0 // data segment length
+  jmp APMSYM(ok)
+#endif
+
+;-----------------
+; APM interface disconnect
+APMSYM(04):
+  cmp al, #0x04
+  jne APMSYM(05)
+  jmp APMSYM(ok)
+
+;-----------------
+; APM cpu idle
+APMSYM(05):
+  cmp al, #0x05
+  jne APMSYM(07)
+  pushf ; XEN
+  sti   ; XEN: OS calls us with ints disabled -- better re-enable here!
+  hlt
+  popf  ; XEN
+  jmp APMSYM(ok)
+
+;-----------------
+; APM Set Power State
+APMSYM(07):
+  cmp al, #0x07
+  jne APMSYM(08)
+  
+  cmp bx, #1
+  jne APMSYM(ok)
+  
+  cmp cx, #3
+  je APMSYM(07_poweroff)
+  
+  cmp cx, #2
+  je APMSYM(07_suspend)
+  
+  cmp cx, #1
+  je APMSYM(07_standby)
+  
+  jne APMSYM(ok)
+  
+APMSYM(07_poweroff):  
+  // send power off event to emulator
+  cli
+  mov dx, #0x8900
+  mov ax, #APMSYM(07_poweroff_str)
+  call APMSYM(out_str)
+
+APMSYM(07_1):
+  hlt
+  jmp APMSYM(07_1)
+
+APMSYM(07_suspend):
+  push edx
+  mov dx, #0x8900
+  mov ax, #APMSYM(07_suspend_str)
+  call APMSYM(out_str)
+  pop edx
+  jmp APMSYM(ok)
+
+APMSYM(07_standby):
+  push edx
+  mov dx, #0x8900
+  mov ax, #APMSYM(07_standby_str)
+  call APMSYM(out_str)
+  pop edx
+  jmp APMSYM(ok)
+
+;-----------------
+; APM Enable / Disable
+APMSYM(08):
+  cmp al, #0x08
+  jne APMSYM(0a)
+
+  jmp APMSYM(ok)
+
+;-----------------
+; Get Power Status
+APMSYM(0a):
+  cmp al, #0x0a
+  jne APMSYM(0b)
+  mov bh, #0x01 // on line
+  // mov bh, #0x02 // battery
+  mov bl, #0xff // unknown battery status
+  // mov bl, #0x03 // charging
+  mov ch, #0x80 // no system battery
+  // mov ch, #0x8 // charging
+  mov cl, #0xff // unknown remaining time
+  // mov cl, #50
+  mov dx, #0xffff // unknown remaining time 
+  mov si, #0      // zero battery
+  // mov si, #1      // one battery
+  jmp APMSYM(ok)
+
+;-----------------
+; Get PM Event
+APMSYM(0b):
+  cmp al, #0x0b
+  jne APMSYM(0e)
+  mov ah, #0x80 // no event pending
+  jmp APMSYM(error)
+   
+;-----------------
+; APM Driver Version
+APMSYM(0e):
+  cmp al, #0x0e
+  jne APMSYM(0f)
+  
+  mov ah, #1
+  mov al, #2
+  
+  jmp APMSYM(ok)
+
+;-----------------
+; APM Engage / Disengage
+APMSYM(0f):
+  cmp al, #0x0f
+  jne APMSYM(10)
+
+  jmp APMSYM(ok)
+
+;-----------------
+; APM Get Capabilities
+APMSYM(10):
+  cmp al, #0x10
+  jne APMSYM(unimplemented)
+
+  mov bl, #0
+  mov cx, #0
+
+  jmp APMSYM(ok)
+
+;-----------------
+APMSYM(ok):
+  popf
+  clc
+#if defined(APM_REAL)
+  jmp iret_modify_cf
+#else
+  retf  
+#endif
+APMSYM(unimplemented):
+APMSYM(error):
+  popf
+  stc
+#if defined(APM_REAL)
+  jmp iret_modify_cf
+#else
+  retf
+#endif
+
+#undef APM_PROT32
+#undef APM_PROT16
+#undef APM_REAL
+#undef APMSYM