SeaBIOS VGA hooks for Getac P470 and Roda RK886EX notebooks
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coresystems GmbH • Brahmsstr. 16 • D-79104 Freiburg i. Br.
Tel.: +49 761 7668825 • Fax: +49 761 7664613
Email: [email protected] • http://www.coresystems.de/
Registergericht: Amtsgericht Freiburg • HRB 7656
Geschäftsführer: Stefan Reinauer • Ust-IdNr.: DE245674866
Add VGA hooks to operate the following mainboards with coreboot + SeaBIOS:
- Kontron 986LCD-M
- Getac P470 (Laptop)
- Roda RK886EX (Laptop)
Signed-off-by: Stefan Reinauer <[email protected]>
--- src/vgahooks.c
+++ src/vgahooks.c
@@ -17,6 +17,23 @@
// Coreboot board detected.
int CBmainboard VAR16VISIBLE;
+#define MAINBOARD_DEFAULT 0
+#define KONTRON_986LCD_M 1
+#define GETAC_P470 2
+#define RODA_RK886EX 3
+
+struct mainboards {
+ char *vendor;
+ char *device;
+ int type;
+};
+
+struct mainboards mainboard_list[] = {
+ { "KONTRON", "986LCD-M", KONTRON_986LCD_M },
+ { "GETAC", "P470", GETAC_P470 },
+ { "RODA", "RK886EX", RODA_RK886EX },
+};
+
static void
handle_155fXX(struct bregs *regs)
{
@@ -154,7 +171,90 @@
}
}
+/****************************************************************
+ * Intel VGA hooks
+ ****************************************************************/
+#define BOOT_DISPLAY_DEFAULT (0)
+#define BOOT_DISPLAY_CRT (1 << 0)
+#define BOOT_DISPLAY_TV (1 << 1)
+#define BOOT_DISPLAY_EFP (1 << 2)
+#define BOOT_DISPLAY_LCD (1 << 3)
+#define BOOT_DISPLAY_CRT2 (1 << 4)
+#define BOOT_DISPLAY_TV2 (1 << 5)
+#define BOOT_DISPLAY_EFP2 (1 << 6)
+#define BOOT_DISPLAY_LCD2 (1 << 7)
+
+static void
+roda_155f35(struct bregs *regs)
+{
+ regs->ax = 0x005f;
+ // regs->cl = BOOT_DISPLAY_DEFAULT;
+ regs->cl = BOOT_DISPLAY_LCD;
+ set_success(regs);
+}
+static void
+roda_155f40(struct bregs *regs)
+{
+ u8 display_id;
+ //display_id = inb(0x60f) & 0x0f; // Correct according to Crete
+ display_id = 3; // Correct according to empirical studies
+
+ regs->ax = 0x005f;
+ regs->cl = display_id;
+ set_success(regs);
+}
+
+static void
+roda_155f(struct bregs *regs)
+{
+ dprintf(1, "Executing RODA specific interrupt %02x.\n", regs->al);
+ switch (regs->al) {
+ case 0x35: roda_155f35(regs); break;
+ case 0x40: roda_155f40(regs); break;
+ default: handle_155fXX(regs); break;
+ }
+}
+
+static void
+kontron_155f35(struct bregs *regs)
+{
+ regs->ax = 0x005f;
+ regs->cl = BOOT_DISPLAY_CRT;
+ set_success(regs);
+}
+
+static void
+kontron_155f40(struct bregs *regs)
+{
+ u8 display_id;
+ display_id = 3;
+
+ regs->ax = 0x005f;
+ regs->cl = display_id;
+ set_success(regs);
+}
+
+static void
+kontron_155f(struct bregs *regs)
+{
+ dprintf(1, "Executing Kontron specific interrupt %02x.\n", regs->al);
+ switch (regs->al) {
+ case 0x35: kontron_155f35(regs); break;
+ case 0x40: kontron_155f40(regs); break;
+ default: handle_155fXX(regs); break;
+ }
+}
+
+static void
+getac_155f(struct bregs *regs)
+{
+ dprintf(1, "Executing Getac specific interrupt %02x.\n", regs->al);
+ switch (regs->al) {
+ default: handle_155fXX(regs); break;
+ }
+}
+
/****************************************************************
* Entry and setup
****************************************************************/
@@ -163,19 +263,33 @@
void
handle_155f(struct bregs *regs)
{
+ int bdf, cbmb;
+
if (! CONFIG_VGAHOOKS)
goto fail;
- // XXX - Use this value later.
- //int cbmb = GET_GLOBAL(CBmainboard);
+ cbmb = GET_GLOBAL(CBmainboard);
- int bdf = GET_GLOBAL(VGAbdf);
- if (bdf < 0)
- goto fail;
- u16 vendor = pci_config_readw(bdf, PCI_VENDOR_ID);
- if (vendor == PCI_VENDOR_ID_VIA) {
- via_155f(regs);
- return;
+ switch (cbmb) {
+ case KONTRON_986LCD_M:
+ kontron_155f(regs);
+ return;
+ case RODA_RK886EX:
+ roda_155f(regs);
+ return;
+ case GETAC_P470:
+ getac_155f(regs);
+ return;
+ case MAINBOARD_DEFAULT:
+ bdf = GET_GLOBAL(VGAbdf);
+ if (bdf < 0)
+ goto fail;
+
+ u16 vendor = pci_config_readw(bdf, PCI_VENDOR_ID);
+ if (vendor == PCI_VENDOR_ID_VIA) {
+ via_155f(regs);
+ return;
+ }
}
fail:
@@ -186,8 +300,18 @@
void
vgahook_setup(const char *vendor, const char *part)
{
+ int i;
+
if (! CONFIG_VGAHOOKS)
return;
- // XXX - add support later.
+
CBmainboard = 0;
+ for (i=0; i<(sizeof(mainboard_list) / sizeof(mainboard_list[0])); i++) {
+ if (!strcmp(vendor, mainboard_list[i].vendor) &&
+ !strcmp(part, mainboard_list[i].device)) {
+ printf("Found mainboard %s %s\n", vendor, part);
+ CBmainboard = mainboard_list[i].type;
+ break;
+ }
+ }
}
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