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-rw-r--r--src/devices/oprom/include/vbe.h112
-rw-r--r--src/devices/oprom/x86.c93
-rw-r--r--src/devices/oprom/x86.h48
-rw-r--r--src/devices/oprom/x86_interrupts.c150
-rw-r--r--src/devices/oprom/yabel/vbe.c94
-rw-r--r--src/mainboard/kontron/986lcd-m/mainboard.c50
-rw-r--r--src/mainboard/roda/rk886ex/mainboard.c49
7 files changed, 343 insertions, 253 deletions
diff --git a/src/devices/oprom/include/vbe.h b/src/devices/oprom/include/vbe.h
new file mode 100644
index 0000000000..b87b0d5506
--- /dev/null
+++ b/src/devices/oprom/include/vbe.h
@@ -0,0 +1,112 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net>
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ * IBM Corporation - initial implementation
+ *****************************************************************************/
+
+// these structs are for input from and output to OF
+typedef struct {
+ u8 display_type; // 0=NONE, 1= analog, 2=digital
+ u16 screen_width;
+ u16 screen_height;
+ u16 screen_linebytes; // bytes per line in framebuffer, may be more than screen_width
+ u8 color_depth; // color depth in bpp
+ u32 framebuffer_address;
+ u8 edid_block_zero[128];
+} __attribute__ ((__packed__)) screen_info_t;
+
+typedef struct {
+ u8 signature[4];
+ u16 size_reserved;
+ u8 monitor_number;
+ u16 max_screen_width;
+ u8 color_depth;
+} __attribute__ ((__packed__)) screen_info_input_t;
+
+// these structs only store a subset of the VBE defined fields
+// only those needed.
+typedef struct {
+ char signature[4];
+ u16 version;
+ u8 *oem_string_ptr;
+ u32 capabilities;
+ u16 video_mode_list[256]; // lets hope we never have more than 256 video modes...
+ u16 total_memory;
+} vbe_info_t;
+
+typedef struct {
+ u16 mode_attributes; // 00
+ u8 win_a_attributes; // 02
+ u8 win_b_attributes; // 03
+ u16 win_granularity; // 04
+ u16 win_size; // 06
+ u16 win_a_segment; // 08
+ u16 win_b_segment; // 0a
+ u32 win_func_ptr; // 0c
+ u16 bytes_per_scanline; // 10
+ u16 x_resolution; // 12
+ u16 y_resolution; // 14
+ u8 x_charsize; // 16
+ u8 y_charsize; // 17
+ u8 number_of_planes; // 18
+ u8 bits_per_pixel; // 19
+ u8 number_of_banks; // 20
+ u8 memory_model; // 21
+ u8 bank_size; // 22
+ u8 number_of_image_pages; // 23
+ u8 reserved_page;
+ u8 red_mask_size;
+ u8 red_mask_pos;
+ u8 green_mask_size;
+ u8 green_mask_pos;
+ u8 blue_mask_size;
+ u8 blue_mask_pos;
+ u8 reserved_mask_size;
+ u8 reserved_mask_pos;
+ u8 direct_color_mode_info;
+ u32 phys_base_ptr;
+ u32 offscreen_mem_offset;
+ u16 offscreen_mem_size;
+ u8 reserved[206];
+} __attribute__ ((__packed__)) vesa_mode_info_t;
+
+typedef struct {
+ u16 video_mode;
+ union {
+ vesa_mode_info_t vesa;
+ u8 mode_info_block[256];
+ };
+ // our crap
+ //u16 attributes;
+ //u16 linebytes;
+ //u16 x_resolution;
+ //u16 y_resolution;
+ //u8 x_charsize;
+ //u8 y_charsize;
+ //u8 bits_per_pixel;
+ //u8 memory_model;
+ //u32 framebuffer_address;
+} vbe_mode_info_t;
+
+typedef struct {
+ u8 port_number; // i.e. monitor number
+ u8 edid_transfer_time;
+ u8 ddc_level;
+ u8 edid_block_zero[128];
+} vbe_ddc_info_t;
+
+struct lb_framebuffer;
+
+void vbe_set_graphics(void); // yabel only
+
+void fill_lb_framebuffer(struct lb_framebuffer *framebuffer);
+void vbe_textmode_console(void);
+
+
diff --git a/src/devices/oprom/x86.c b/src/devices/oprom/x86.c
index 37b45e6376..9a6ce41029 100644
--- a/src/devices/oprom/x86.c
+++ b/src/devices/oprom/x86.c
@@ -26,18 +26,7 @@
#include <console/console.h>
#include <arch/interrupt.h>
-#define REALMODE_BASE ((void *)0x600)
-
-struct realmode_idt {
- u16 offset, cs;
-};
-
-void x86_exception(struct eregs *info);
-
-/* From x86_asm.S */
-extern unsigned char __idt_handler, __idt_handler_size;
-extern unsigned char __realmode_code, __realmode_code_size;
-extern unsigned char __realmode_call, __realmode_interrupt;
+#include "x86.h"
void (*realmode_call)(u32 addr, u32 eax, u32 ebx, u32 ecx, u32 edx,
u32 esi, u32 edi) __attribute__((regparm(0))) = (void *)&__realmode_call;
@@ -45,10 +34,6 @@ void (*realmode_call)(u32 addr, u32 eax, u32 ebx, u32 ecx, u32 edx,
void (*realmode_interrupt)(u32 intno, u32 eax, u32 ebx, u32 ecx, u32 edx,
u32 esi, u32 edi) __attribute__((regparm(0))) = (void *)&__realmode_interrupt;
-#define FAKE_MEMORY_SIZE (1024*1024) // only 1MB
-#define INITIAL_EBDA_SEGMENT 0xF600
-#define INITIAL_EBDA_SIZE 0x400
-
static void setup_bda(void)
{
/* clear BIOS DATA AREA */
@@ -104,79 +89,6 @@ void mainboard_interrupt_handlers(int intXX, void *intXX_func)
intXX_handler[intXX] = intXX_func;
}
-static int int10_handler(struct eregs *regs)
-{
- int res=-1;
- static u8 cursor_row=0, cursor_col=0;
- switch((regs->eax & 0xff00)>>8) {
- case 0x01: // Set cursor shape
- res = 0;
- break;
- case 0x02: // Set cursor position
- if (cursor_row != ((regs->edx >> 8) & 0xff) ||
- cursor_col >= (regs->edx & 0xff)) {
- printk(BIOS_INFO, "\n");
- }
- cursor_row = (regs->edx >> 8) & 0xff;
- cursor_col = regs->edx & 0xff;
- res = 0;
- break;
- case 0x03: // Get cursor position
- regs->eax &= 0x00ff;
- regs->ecx = 0x0607;
- regs->edx = (cursor_row << 8) | cursor_col;
- res = 0;
- break;
- case 0x06: // Scroll up
- printk(BIOS_INFO, "\n");
- res = 0;
- break;
- case 0x08: // Get Character and Mode at Cursor Position
- regs->eax = 0x0f00 | 'A'; // White on black 'A'
- res = 0;
- break;
- case 0x09: // Write Character and attribute
- case 0x10: // Write Character
- printk(BIOS_INFO, "%c", regs->eax & 0xff);
- res = 0;
- break;
- case 0x0f: // Get video mode
- regs->eax = 0x5002; //80x25
- regs->ebx &= 0x00ff;
- res = 0;
- break;
- default:
- printk(BIOS_WARNING, "Unknown INT10 function %04x!\n",
- regs->eax & 0xffff);
- break;
- }
- return res;
-}
-
-static int int16_handler(struct eregs *regs)
-{
- int res=-1;
- switch((regs->eax & 0xff00)>>8) {
- case 0x00: // Check for Keystroke
- regs->eax = 0x6120; // Space Bar, Space
- res = 0;
- break;
- case 0x01: // Check for Keystroke
- regs->eflags |= 1<<6; // Zero Flag set (no key available)
- res = 0;
- break;
- default:
- printk(BIOS_WARNING, "Unknown INT16 function %04x!\n",
- regs->eax & 0xffff);
- break;
- }
- return res;
-}
-
-int int12_handler(struct eregs *regs);
-int int15_handler(struct eregs *regs);
-int int1a_handler(struct eregs *regs);
-
static void setup_interrupt_handlers(void)
{
int i;
@@ -206,9 +118,6 @@ static void setup_interrupt_handlers(void)
case 0x12:
intXX_handler[0x12] = &int12_handler;
break;
- case 0x15:
- intXX_handler[0x15] = &int15_handler;
- break;
case 0x16:
intXX_handler[0x16] = &int16_handler;
break;
diff --git a/src/devices/oprom/x86.h b/src/devices/oprom/x86.h
new file mode 100644
index 0000000000..0bc24122e1
--- /dev/null
+++ b/src/devices/oprom/x86.h
@@ -0,0 +1,48 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007 Advanced Micro Devices, Inc.
+ * Copyright (C) 2009-2010 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#define REALMODE_BASE ((void *)0x600)
+
+struct realmode_idt {
+ u16 offset, cs;
+};
+
+void x86_exception(struct eregs *info);
+
+/* From x86_asm.S */
+extern unsigned char __idt_handler, __idt_handler_size;
+extern unsigned char __realmode_code, __realmode_code_size;
+extern unsigned char __realmode_call, __realmode_interrupt;
+
+extern void (*realmode_call)(u32 addr, u32 eax, u32 ebx, u32 ecx, u32 edx,
+ u32 esi, u32 edi) __attribute__((regparm(0)));
+
+extern void (*realmode_interrupt)(u32 intno, u32 eax, u32 ebx, u32 ecx, u32 edx,
+ u32 esi, u32 edi) __attribute__((regparm(0)));
+
+#define FAKE_MEMORY_SIZE (1024*1024) // only 1MB
+#define INITIAL_EBDA_SEGMENT 0xF600
+#define INITIAL_EBDA_SIZE 0x400
+
+int int10_handler(struct eregs *regs);
+int int12_handler(struct eregs *regs);
+int int16_handler(struct eregs *regs);
+int int1a_handler(struct eregs *regs);
+
diff --git a/src/devices/oprom/x86_interrupts.c b/src/devices/oprom/x86_interrupts.c
index 1dd645b421..86d20d7d2e 100644
--- a/src/devices/oprom/x86_interrupts.c
+++ b/src/devices/oprom/x86_interrupts.c
@@ -26,17 +26,7 @@
#include <console/console.h>
#include <arch/io.h>
#include <arch/registers.h>
-
-enum {
- PCIBIOS_CHECK = 0xb101,
- PCIBIOS_FINDDEV = 0xb102,
- PCIBIOS_READCONFBYTE = 0xb108,
- PCIBIOS_READCONFWORD = 0xb109,
- PCIBIOS_READCONFDWORD = 0xb10a,
- PCIBIOS_WRITECONFBYTE = 0xb10b,
- PCIBIOS_WRITECONFWORD = 0xb10c,
- PCIBIOS_WRITECONFDWORD = 0xb10d
-};
+#include "x86.h"
// errors go in AH. Just set these up so that word assigns
// will work. KISS.
@@ -48,9 +38,54 @@ enum {
PCIBIOS_BADREG = 0x8700
};
-int int12_handler(struct eregs *regs);
-int int1a_handler(struct eregs *regs);
-int int15_handler(struct eregs *regs);
+int int10_handler(struct eregs *regs)
+{
+ int res=-1;
+ static u8 cursor_row=0, cursor_col=0;
+ switch((regs->eax & 0xff00)>>8) {
+ case 0x01: // Set cursor shape
+ res = 0;
+ break;
+ case 0x02: // Set cursor position
+ if (cursor_row != ((regs->edx >> 8) & 0xff) ||
+ cursor_col >= (regs->edx & 0xff)) {
+ printk(BIOS_INFO, "\n");
+ }
+ cursor_row = (regs->edx >> 8) & 0xff;
+ cursor_col = regs->edx & 0xff;
+ res = 0;
+ break;
+ case 0x03: // Get cursor position
+ regs->eax &= 0x00ff;
+ regs->ecx = 0x0607;
+ regs->edx = (cursor_row << 8) | cursor_col;
+ res = 0;
+ break;
+ case 0x06: // Scroll up
+ printk(BIOS_INFO, "\n");
+ res = 0;
+ break;
+ case 0x08: // Get Character and Mode at Cursor Position
+ regs->eax = 0x0f00 | 'A'; // White on black 'A'
+ res = 0;
+ break;
+ case 0x09: // Write Character and attribute
+ case 0x10: // Write Character
+ printk(BIOS_INFO, "%c", regs->eax & 0xff);
+ res = 0;
+ break;
+ case 0x0f: // Get video mode
+ regs->eax = 0x5002; //80x25
+ regs->ebx &= 0x00ff;
+ res = 0;
+ break;
+ default:
+ printk(BIOS_WARNING, "Unknown INT10 function %04x!\n",
+ regs->eax & 0xffff);
+ break;
+ }
+ return res;
+}
int int12_handler(struct eregs *regs)
{
@@ -58,6 +93,26 @@ int int12_handler(struct eregs *regs)
return 0;
}
+int int16_handler(struct eregs *regs)
+{
+ int res=-1;
+ switch((regs->eax & 0xff00)>>8) {
+ case 0x00: // Check for Keystroke
+ regs->eax = 0x6120; // Space Bar, Space
+ res = 0;
+ break;
+ case 0x01: // Check for Keystroke
+ regs->eflags |= 1<<6; // Zero Flag set (no key available)
+ res = 0;
+ break;
+ default:
+ printk(BIOS_WARNING, "Unknown INT16 function %04x!\n",
+ regs->eax & 0xffff);
+ break;
+ }
+ return res;
+}
+
#define PCI_CONFIG_SPACE_TYPE1 (1 << 0)
#define PCI_CONFIG_SPACE_TYPE2 (1 << 1)
#define PCI_SPECIAL_CYCLE_TYPE1 (1 << 4)
@@ -77,7 +132,7 @@ int int1a_handler(struct eregs *regs)
u8 byte, reg;
switch (func) {
- case PCIBIOS_CHECK:
+ case 0xb101: /* PCIBIOS Check */
regs->edx = 0x20494350; /* ' ICP' */
regs->eax &= 0xffff0000; /* Clear AH / AL */
regs->eax |= PCI_CONFIG_SPACE_TYPE1 | PCI_SPECIAL_CYCLE_TYPE1;
@@ -87,7 +142,7 @@ int int1a_handler(struct eregs *regs)
regs->edi = 0x00000000; /* protected mode entry */
retval = 0;
break;
- case PCIBIOS_FINDDEV:
+ case 0xb102: /* Find Device */
devid = regs->ecx;
vendorid = regs->edx;
devindex = regs->esi;
@@ -114,12 +169,12 @@ int int1a_handler(struct eregs *regs)
retval = -1;
}
break;
- case PCIBIOS_READCONFDWORD:
- case PCIBIOS_READCONFWORD:
- case PCIBIOS_READCONFBYTE:
- case PCIBIOS_WRITECONFDWORD:
- case PCIBIOS_WRITECONFWORD:
- case PCIBIOS_WRITECONFBYTE:
+ case 0xb10a: /* Read Config Dword */
+ case 0xb109: /* Read Config Word */
+ case 0xb108: /* Read Config Byte */
+ case 0xb10d: /* Write Config Dword */
+ case 0xb10c: /* Write Config Word */
+ case 0xb10b: /* Write Config Byte */
devfn = regs->ebx & 0xff;
bus = regs->ebx >> 8;
reg = regs->edi;
@@ -133,27 +188,27 @@ int int1a_handler(struct eregs *regs)
return retval;
}
switch (func) {
- case PCIBIOS_READCONFBYTE:
+ case 0xb108: /* Read Config Byte */
byte = pci_read_config8(dev, reg);
regs->ecx = byte;
break;
- case PCIBIOS_READCONFWORD:
+ case 0xb109: /* Read Config Word */
word = pci_read_config16(dev, reg);
regs->ecx = word;
break;
- case PCIBIOS_READCONFDWORD:
+ case 0xb10a: /* Read Config Dword */
dword = pci_read_config32(dev, reg);
regs->ecx = dword;
break;
- case PCIBIOS_WRITECONFBYTE:
+ case 0xb10b: /* Write Config Byte */
byte = regs->ecx;
pci_write_config8(dev, reg, byte);
break;
- case PCIBIOS_WRITECONFWORD:
+ case 0xb10c: /* Write Config Word */
word = regs->ecx;
pci_write_config16(dev, reg, word);
break;
- case PCIBIOS_WRITECONFDWORD:
+ case 0xb10d: /* Write Config Dword */
dword = regs->ecx;
pci_write_config32(dev, reg, dword);
break;
@@ -178,42 +233,3 @@ int int1a_handler(struct eregs *regs)
return retval;
}
-int int15_handler(struct eregs *regs)
-{
- int res = -1;
-
- /* This int15 handler is Intel IGD. specific. Other chipsets need other
- * handlers. The right way to do this is to move this handler code into
- * the mainboard or northbridge code.
- * TODO: completely move to mainboards / chipsets.
- */
- switch (regs->eax & 0xffff) {
- /* And now Intel IGD code */
-#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)
- case 0x5f35:
- regs->eax = 0x5f;
- regs->ecx = BOOT_DISPLAY_DEFAULT;
- res = 0;
- break;
- case 0x5f40:
- regs->eax = 0x5f;
- regs->ecx = 3; // This is mainboard specific
- printk(BIOS_DEBUG, "DISPLAY=%x\n", regs->ecx);
- res = 0;
- break;
- default:
- printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n",
- regs->eax & 0xffff);
- }
-
- return res;
-}
-
diff --git a/src/devices/oprom/yabel/vbe.c b/src/devices/oprom/yabel/vbe.c
index 75e8f3e1c0..27bf5e62b0 100644
--- a/src/devices/oprom/yabel/vbe.c
+++ b/src/devices/oprom/yabel/vbe.c
@@ -31,13 +31,14 @@
#include "mem.h"
#include "interrupt.h"
#include "device.h"
-#include "vbe.h"
#include <cbfs.h>
#include <delay.h>
#include "../../src/lib/jpeg.h"
+#include <vbe.h>
+
// pointer to VBEInfoBuffer, set by vbe_prepare
u8 *vbe_info_buffer = 0;
@@ -45,97 +46,6 @@ u8 *vbe_info_buffer = 0;
u8 *biosmem;
u32 biosmem_size;
-// these structs are for input from and output to OF
-typedef struct {
- u8 display_type; // 0=NONE, 1= analog, 2=digital
- u16 screen_width;
- u16 screen_height;
- u16 screen_linebytes; // bytes per line in framebuffer, may be more than screen_width
- u8 color_depth; // color depth in bpp
- u32 framebuffer_address;
- u8 edid_block_zero[128];
-} __attribute__ ((__packed__)) screen_info_t;
-
-typedef struct {
- u8 signature[4];
- u16 size_reserved;
- u8 monitor_number;
- u16 max_screen_width;
- u8 color_depth;
-} __attribute__ ((__packed__)) screen_info_input_t;
-
-// these structs only store a subset of the VBE defined fields
-// only those needed.
-typedef struct {
- char signature[4];
- u16 version;
- u8 *oem_string_ptr;
- u32 capabilities;
- u16 video_mode_list[256]; // lets hope we never have more than 256 video modes...
- u16 total_memory;
-} vbe_info_t;
-
-typedef struct {
- u16 mode_attributes; // 00
- u8 win_a_attributes; // 02
- u8 win_b_attributes; // 03
- u16 win_granularity; // 04
- u16 win_size; // 06
- u16 win_a_segment; // 08
- u16 win_b_segment; // 0a
- u32 win_func_ptr; // 0c
- u16 bytes_per_scanline; // 10
- u16 x_resolution; // 12
- u16 y_resolution; // 14
- u8 x_charsize; // 16
- u8 y_charsize; // 17
- u8 number_of_planes; // 18
- u8 bits_per_pixel; // 19
- u8 number_of_banks; // 20
- u8 memory_model; // 21
- u8 bank_size; // 22
- u8 number_of_image_pages; // 23
- u8 reserved_page;
- u8 red_mask_size;
- u8 red_mask_pos;
- u8 green_mask_size;
- u8 green_mask_pos;
- u8 blue_mask_size;
- u8 blue_mask_pos;
- u8 reserved_mask_size;
- u8 reserved_mask_pos;
- u8 direct_color_mode_info;
- u32 phys_base_ptr;
- u32 offscreen_mem_offset;
- u16 offscreen_mem_size;
- u8 reserved[206];
-} __attribute__ ((__packed__)) vesa_mode_info_t;
-
-typedef struct {
- u16 video_mode;
- union {
- vesa_mode_info_t vesa;
- u8 mode_info_block[256];
- };
- // our crap
- //u16 attributes;
- //u16 linebytes;
- //u16 x_resolution;
- //u16 y_resolution;
- //u8 x_charsize;
- //u8 y_charsize;
- //u8 bits_per_pixel;
- //u8 memory_model;
- //u32 framebuffer_address;
-} vbe_mode_info_t;
-
-typedef struct {
- u8 port_number; // i.e. monitor number
- u8 edid_transfer_time;
- u8 ddc_level;
- u8 edid_block_zero[128];
-} vbe_ddc_info_t;
-
static inline u8
vbe_prepare(void)
{
diff --git a/src/mainboard/kontron/986lcd-m/mainboard.c b/src/mainboard/kontron/986lcd-m/mainboard.c
index 1d0c4946b2..d7b1f13cc1 100644
--- a/src/mainboard/kontron/986lcd-m/mainboard.c
+++ b/src/mainboard/kontron/986lcd-m/mainboard.c
@@ -25,6 +25,7 @@
#endif
#include <pc80/mc146818rtc.h>
#include <arch/io.h>
+#include <arch/interrupt.h>
#include "chip.h"
#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
@@ -70,6 +71,53 @@ static void int15_install(void)
}
#endif
+#if defined(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) && CONFIG_PCI_OPTION_ROM_RUN_REALMODE
+static int int15_handler(struct eregs *regs)
+{
+ int res = -1;
+
+ /* This int15 handler is Intel IGD. specific. Other chipsets need other
+ * handlers. The right way to do this is to move this handler code into
+ * the mainboard or northbridge code.
+ * TODO: completely move to mainboards / chipsets.
+ */
+ switch (regs->eax & 0xffff) {
+ /* And now Intel IGD code */
+#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)
+ case 0x5f35:
+ regs->eax = 0x5f;
+ regs->ecx = BOOT_DISPLAY_DEFAULT;
+ res = 0;
+ break;
+ case 0x5f40:
+ regs->eax = 0x5f;
+ regs->ecx = 3; // This is mainboard specific
+ printk(BIOS_DEBUG, "DISPLAY=%x\n", regs->ecx);
+ res = 0;
+ break;
+ default:
+ printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n",
+ regs->eax & 0xffff);
+ }
+
+ return res;
+}
+
+static void int15_install(void)
+{
+ mainboard_interrupt_handlers(0x15, &int15_handler);
+}
+#endif
+
+
/* Hardware Monitor */
static u16 hwm_base = 0xa00;
@@ -221,7 +269,7 @@ static void verb_setup(void)
static void mainboard_enable(device_t dev)
{
-#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL || CONFIG_PCI_OPTION_ROM_RUN_REALMODE
/* Install custom int15 handler for VGA OPROM */
int15_install();
#endif
diff --git a/src/mainboard/roda/rk886ex/mainboard.c b/src/mainboard/roda/rk886ex/mainboard.c
index 2c5b5e3d71..d87d712259 100644
--- a/src/mainboard/roda/rk886ex/mainboard.c
+++ b/src/mainboard/roda/rk886ex/mainboard.c
@@ -22,6 +22,7 @@
#include <console/console.h>
#include <device/device.h>
#include <arch/io.h>
+#include <arch/interrupt.h>
#include <boot/tables.h>
#include <delay.h>
#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
@@ -99,6 +100,52 @@ static void int15_install(void)
}
#endif
+#if CONFIG_PCI_OPTION_ROM_RUN_REALMODE
+static int int15_handler(struct eregs *regs)
+{
+ int res = -1;
+
+ /* This int15 handler is Intel IGD. specific. Other chipsets need other
+ * handlers. The right way to do this is to move this handler code into
+ * the mainboard or northbridge code.
+ * TODO: completely move to mainboards / chipsets.
+ */
+ switch (regs->eax & 0xffff) {
+ /* And now Intel IGD code */
+#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)
+ case 0x5f35:
+ regs->eax = 0x5f;
+ regs->ecx = BOOT_DISPLAY_DEFAULT;
+ res = 0;
+ break;
+ case 0x5f40:
+ regs->eax = 0x5f;
+ regs->ecx = 3; // This is mainboard specific
+ printk(BIOS_DEBUG, "DISPLAY=%x\n", regs->ecx);
+ res = 0;
+ break;
+ default:
+ printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n",
+ regs->eax & 0xffff);
+ }
+
+ return res;
+}
+
+static void int15_install(void)
+{
+ mainboard_interrupt_handlers(0x15, &int15_handler);
+}
+#endif
+
#if DUMP_RUNTIME_REGISTERS
static void dump_runtime_registers(void)
{
@@ -125,7 +172,7 @@ static void mainboard_enable(device_t dev)
/* Disable Dummy DCC -> GP45 = 1 */
outb(inb(0x60f) | (1 << 5), 0x60f);
-#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL || CONFIG_PCI_OPTION_ROM_RUN_REALMODE
/* Install custom int15 handler for VGA OPROM */
int15_install();
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 08:22:01 +0000