grml...

[seabios.git] / src / apm.c

diff --git a/src/apm.c b/src/apm.c
index 1d8ceef0c99017179cd1b1cc7ff6e50b2583756a..c497dbecd8306b514d1d07e9baf2dac889b1f50b 100644 (file)
--- a/src/apm.c
+++ b/src/apm.c
@@ -4,19 +4,26 @@
 // Copyright (C) 2005 Struan Bartlett
 // Copyright (C) 2004 Fabrice Bellard
 //
-// This file may be distributed under the terms of the GNU GPLv3 license.
+// This file may be distributed under the terms of the GNU LGPLv3 license.
 
 #include "farptr.h" // GET_VAR
-#include "biosvar.h" // struct bregs
+#include "bregs.h" // struct bregs
 #include "ioport.h" // outb
-#include "util.h" // irq_enable
+#include "util.h" // wait_irq
+#include "config.h" // CONFIG_*
+#include "biosvar.h" // GET_GLOBAL
 
 static void
 out_str(const char *str_cs)
 {
+    if (CONFIG_COREBOOT) {
+        dprintf(1, "APM request '%s'\n", str_cs);
+        return;
+    }
+
     u8 *s = (u8*)str_cs;
     for (;;) {
-        u8 c = GET_VAR(CS, *s);
+        u8 c = GET_GLOBAL(*s);
         if (!c)
             break;
         outb(c, PORT_BIOS_APM);
@@ -46,14 +53,14 @@ handle_155301(struct bregs *regs)
 }
 
 // Assembler entry points defined in romlayout.S
-extern void apm16protected_entry();
-extern void apm32protected_entry();
+extern void entry_apm16(void);
+extern void entry_apm32(void);
 
 // APM 16 bit protected mode interface connect
 static void
 handle_155302(struct bregs *regs)
 {
-    regs->bx = (u32)apm16protected_entry;
+    regs->bx = (u32)entry_apm16;
     regs->ax = SEG_BIOS; // 16 bit code segment base
     regs->si = 0xfff0;   // 16 bit code segment size
     regs->cx = SEG_BIOS; // data segment address
@@ -66,7 +73,7 @@ static void
 handle_155303(struct bregs *regs)
 {
     regs->ax = SEG_BIOS; // 32 bit code segment base
-    regs->ebx = (u32)apm32protected_entry;
+    regs->ebx = (u32)entry_apm32;
     regs->cx = SEG_BIOS; // 16 bit code segment base
     // 32 bit code segment size (low 16 bits)
     // 16 bit code segment size (high 16 bits)
@@ -87,11 +94,26 @@ handle_155304(struct bregs *regs)
 static void
 handle_155305(struct bregs *regs)
 {
-    irq_enable();
-    hlt();
+    wait_irq();
+    set_success(regs);
+}
+
+// APM cpu busy
+static void
+handle_155306(struct bregs *regs)
+{
     set_success(regs);
 }
 
+void
+apm_shutdown(void)
+{
+    irq_disable();
+    out_str("Shutdown");
+    for (;;)
+        hlt();
+}
+
 // APM Set Power State
 static void
 handle_155307(struct bregs *regs)
@@ -108,10 +130,7 @@ handle_155307(struct bregs *regs)
         out_str("Suspend");
         break;
     case 3:
-        irq_disable();
-        out_str("Shutdown");
-        for (;;)
-            hlt();
+        apm_shutdown();
         break;
     }
     set_success(regs);
@@ -136,12 +155,13 @@ handle_15530a(struct bregs *regs)
     set_success(regs);
 }
 
+#define RET_ENOEVENT 0x80
+
 // Get PM Event
 static void
 handle_15530b(struct bregs *regs)
 {
-    set_fail(regs);
-    regs->ah = 0x80; // no event pending
+    set_code_invalid_silent(regs, RET_ENOEVENT);
 }
 
 // APM Driver Version
@@ -172,12 +192,17 @@ handle_155310(struct bregs *regs)
 static void
 handle_1553XX(struct bregs *regs)
 {
-    set_fail(regs);
+    set_unimplemented(regs);
 }
 
-void VISIBLE16
+void
 handle_1553(struct bregs *regs)
 {
+    if (! CONFIG_APMBIOS) {
+        set_code_invalid(regs, RET_EUNSUPPORTED);
+        return;
+    }
+
     //debug_stub(regs);
     switch (regs->al) {
     case 0x00: handle_155300(regs); break;
@@ -186,6 +211,7 @@ handle_1553(struct bregs *regs)
     case 0x03: handle_155303(regs); break;
     case 0x04: handle_155304(regs); break;
     case 0x05: handle_155305(regs); break;
+    case 0x06: handle_155306(regs); break;
     case 0x07: handle_155307(regs); break;
     case 0x08: handle_155308(regs); break;
     case 0x0a: handle_15530a(regs); break;
@@ -196,3 +222,17 @@ handle_1553(struct bregs *regs)
     default:   handle_1553XX(regs); break;
     }
 }
+
+void VISIBLE16
+handle_apm16(struct bregs *regs)
+{
+    debug_enter(regs, DEBUG_HDL_apm);
+    handle_1553(regs);
+}
+
+void VISIBLE32SEG
+handle_apm32(struct bregs *regs)
+{
+    debug_enter(regs, DEBUG_HDL_apm);
+    handle_1553(regs);
+}