[PATCH 4/4] probe for quietboot and fastboot in rombios

[Cory Fields <FOSS@AtlasTechnologiesInc.com>]

If fastboot is set skip "Press f12 for boot menu"
If quietboot is set silence all text output
Errors should still be shown

Probes are split into separate functions to make the asm easier.

Signed-off-by: Cory Fields <FOSS@AtlasTechnologiesInc.com>
---
 bios/rombios.c |   80 +++++++++++++++++++++++++++++++++++++++----------------
 1 files changed, 57 insertions(+), 23 deletions(-)

diff --git a/bios/rombios.c b/bios/rombios.c
index c4f6ccd..b5e3846 100644
--- a/bios/rombios.c
+++ b/bios/rombios.c
@@ -144,6 +144,11 @@
 #define BX_PCIBIOS       1
 #define BX_APM           1
 
+#define BX_CFG_CTL_PORT    0x510
+#define BX_CFG_DATA_PORT   0x511
+#define BX_CFG_FASTBOOT    0x07
+#define BX_CFG_QUIETBOOT   0x08
+
 #define BX_USE_ATADRV    1
 #define BX_ELTORITO_BOOT 1
 
@@ -2014,6 +2019,20 @@ Bit16u i; ipl_entry_t *e;
   return 1;
 }
 
+static int qemu_fastboot_probe()
+{
+      outw(BX_CFG_CTL_PORT, BX_CFG_FASTBOOT);
+      if (inb(BX_CFG_DATA_PORT)) return 1;
+      return 0;
+    }
+
+static int qemu_quietboot_probe()
+{
+      outw(BX_CFG_CTL_PORT, BX_CFG_QUIETBOOT);
+      if (inb(BX_CFG_DATA_PORT)) return 1;
+      return 0;
+    }
+
 #if BX_ELTORITO_BOOT
   void
 interactive_bootkey()
@@ -2481,6 +2500,9 @@ void ata_detect( )
   Bit16u ebda_seg=read_word(0x0040,0x000E);
   Bit8u  hdcount, cdcount, device, type;
   Bit8u  buffer[0x0200];
+  Bit8u  quietboot;
+
+  quietboot = qemu_quietboot_probe();
 
 #if BX_MAX_ATA_INTERFACES > 0
   write_byte(ebda_seg,&EbdaData->ata.channels[0].iface,ATA_IFACE_ISA);
@@ -2739,36 +2761,38 @@ void ata_detect( )
           break;
         }
 
-      switch (type) {
-        case ATA_TYPE_ATA:
-          printf("ata%d %s: ",channel,slave?" slave":"master");
-          i=0; while(c=read_byte(get_SS(),model+i++)) printf("%c",c);
-	  if (sizeinmb < (1UL<<16))
-            printf(" ATA-%d Hard-Disk (%4u MBytes)\n", version, (Bit16u)sizeinmb);
-	  else
-            printf(" ATA-%d Hard-Disk (%4u GBytes)\n", version, (Bit16u)(sizeinmb>>10));
-          break;
-        case ATA_TYPE_ATAPI:
-          printf("ata%d %s: ",channel,slave?" slave":"master");
-          i=0; while(c=read_byte(get_SS(),model+i++)) printf("%c",c);
-          if(read_byte(ebda_seg,&EbdaData->ata.devices[device].device)==ATA_DEVICE_CDROM)
-            printf(" ATAPI-%d CD-Rom/DVD-Rom\n",version);
-          else
-            printf(" ATAPI-%d Device\n",version);
-          break;
-        case ATA_TYPE_UNKNOWN:
-          printf("ata%d %s: Unknown device\n",channel,slave?" slave":"master");
-          break;
+      if (!quietboot){
+        switch (type) {
+          case ATA_TYPE_ATA:
+            printf("ata%d %s: ",channel,slave?" slave":"master");
+            i=0; while(c=read_byte(get_SS(),model+i++)) printf("%c",c);
+	    if (sizeinmb < (1UL<<16))
+              printf(" ATA-%d Hard-Disk (%4u MBytes)\n", version, (Bit16u)sizeinmb);
+            else
+              printf(" ATA-%d Hard-Disk (%4u GBytes)\n", version, (Bit16u)(sizeinmb>>10));
+            break;
+          case ATA_TYPE_ATAPI:
+            printf("ata%d %s: ",channel,slave?" slave":"master");
+            i=0; while(c=read_byte(get_SS(),model+i++)) printf("%c",c);
+            if(read_byte(ebda_seg,&EbdaData->ata.devices[device].device)==ATA_DEVICE_CDROM)
+              printf(" ATAPI-%d CD-Rom/DVD-Rom\n",version);
+            else
+              printf(" ATAPI-%d Device\n",version);
+            break;
+          case ATA_TYPE_UNKNOWN:
+            printf("ata%d %s: Unknown device\n",channel,slave?" slave":"master");
+            break;
+          }
         }
       }
     }
-
+  
   // Store the devices counts
   write_byte(ebda_seg,&EbdaData->ata.hdcount, hdcount);
   write_byte(ebda_seg,&EbdaData->ata.cdcount, cdcount);
   write_byte(0x40,0x75, hdcount);
 
-  printf("\n");
+  if (!quietboot) printf("\n");
 
   // FIXME : should use bios=cmos|auto|disable bits
   // FIXME : should know about translation bits
@@ -10669,7 +10693,11 @@ post_default_ints:
   mov  ax, #0xc780
   call rom_scan
 
+  call   _qemu_quietboot_probe
+  test   al,al
+  jnz    skip_bios_print
   call _print_bios_banner
+  skip_bios_print:
 
 #if BX_ROMBIOS32
   call rombios32_init
@@ -10716,7 +10744,13 @@ post_default_ints:
   call rom_scan
 
 #if BX_ELTORITO_BOOT
-  call _interactive_bootkey
+
+ call   _qemu_fastboot_probe
+ test   al,al
+ jnz    skip_timer
+ call _interactive_bootkey
+ 
+skip_timer:
 #endif // BX_ELTORITO_BOOT
 
   sti        ;; enable interrupts
-- 
1.6.0.6