VBE support is partially added.
This commit is contained in:
okuji
parent
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commit
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8 changed files with 559 additions and 47 deletions
35
ChangeLog
35
ChangeLog
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@ -1,3 +1,38 @@
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2000-11-03 OKUJI Yoshinori <okuji@gnu.org>
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VBE support is _partially_ implemented.
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* stage2/mb_header.h (multiboot_header): Added new fields,
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mode_type, width, height, and depth.
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(MULTIBOOT_FOUND): Check if MULTIBOOT_VIDEO_MODE is set, and
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check if LEN is greater than or equal to 48, if set.
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(MULTIBOOT_UNSUPPORTED): Set to 0x0000FFF8.
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(MULTIBOOT_VIDEO_MODE): New macro.
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* stage2/mb_info.h (multiboot_info): Added new fields,
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vbe_control_info, vbe_mode_info, vbe_mode, vbe_interface_seg,
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vbe_interface_off, and vbe_interface_len.
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(MB_INFO_VIDEO_INFO): New macro.
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* stage2/shared.h (vbe_controller): New structure.
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(vbe_mode): Likewise.
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(get_vbe_controller_info): Declared.
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(get_vbe_mode_info): Likewise.
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(set_vbe_mode): Likewise.
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* stage2/asm.S [!STAGE1_5] (get_vbe_controller_info): New
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function.
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[!STAGE1_5] (get_vbe_mode_info): Likewise.
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[!STAGE1_5] (set_vbe_mode): Likewise.
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* grub/asmstub.c (get_vbe_controller_info): Likewise.
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(get_vbe_mode_info): Likewise.
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(set_vbe_mode): Likewise.
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* stage2/builtins.c (testvbe_func): New function.
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(builtin_testvbe): New variable.
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(vbeprobe_func): New function.
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(builtin_vbeprobe): New variable.
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(builtin_table): Added pointers to BUILTIN_TESTVBE and
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BUILTIN_VBEPROBE.
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2000-11-01 OKUJI Yoshinori <okuji@gnu.org>
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* docs/help2man: Copied from help2man-1.23.
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1
NEWS
1
NEWS
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@ -14,6 +14,7 @@ New in 1.0 - XXXX-XX-XX:
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* New command, "md5crypt".
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* The new utility ``grub-md5-crypt'' is a fontend of the grub shell. It
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encrypts a password in MD5 format.
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* New commands, "testvbe" and "vbeprobe".
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New in 0.5.96 - 2000-10-04:
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* New commands, "reboot" and "halt".
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@ -446,6 +446,30 @@ get_apm_info (void)
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/* Nothing to do in the simulator. */
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}
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/* Get VBE controller information. */
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int
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get_vbe_controller_info (struct vbe_controller *controller)
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{
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/* Always fails. */
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return 0;
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}
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/* Get VBE mode information. */
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int
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get_vbe_mode_info (int mode_number, struct vbe_mode *mode)
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{
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/* Always fails. */
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return 0;
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}
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/* Set VBE mode. */
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int
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set_vbe_mode (int mode_number)
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{
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/* Always fails. */
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return 0;
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}
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/* low-level timing info */
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int
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getrtsecs (void)
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116
stage2/asm.S
116
stage2/asm.S
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@ -1582,6 +1582,122 @@ found_rom_table:
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popl %ebp
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ret
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/*
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* int get_vbe_controller_info (struct vbe_controller *controller_ptr)
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*
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* Get VBE controller information.
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*/
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ENTRY(get_vbe_controller_info)
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pushl %ebp
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movl %esp, %ebp
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pushl %edi
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pushl %ebx
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/* Convert the linear address to segment:offset */
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movl 8(%ebp), %eax
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movl %eax, %edi
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andl $0x0000000f, %edi
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shrl $4, %eax
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movl %eax, %ebx
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call EXT_C(prot_to_real)
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.code16
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movw %bx, %es
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movw $0x4F00, %ax
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int $0x10
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movw %ax, %bx
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DATA32 call EXT_C(real_to_prot)
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.code32
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movzwl %bx, %eax
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popl %ebx
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popl %edi
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popl %ebp
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ret
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/*
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* int get_vbe_mode_info (int mode_number, struct vbe_mode *mode_ptr)
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*
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* Get VBE mode information.
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*/
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ENTRY(get_vbe_mode_info)
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pushl %ebp
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movl %esp, %ebp
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pushl %edi
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pushl %ebx
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/* Convert the linear address to segment:offset */
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movl 0xc(%ebp), %eax
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movl %eax, %edi
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andl $0x0000000f, %edi
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shrl $4, %eax
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movl %eax, %ebx
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/* Save the mode number in %cx */
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movl 0x8(%ebp), %ecx
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call EXT_C(prot_to_real)
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.code16
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movw %bx, %es
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movw $0x4F01, %ax
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int $0x10
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movw %ax, %bx
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DATA32 call EXT_C(real_to_prot)
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.code32
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movzwl %bx, %eax
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popl %ebx
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popl %edi
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popl %ebp
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ret
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/*
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* int set_vbe_mode (int mode_number)
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*
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* Set VBE mode. Don't support user-specified CRTC information.
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*/
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ENTRY(set_vbe_mode)
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pushl %ebp
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movl %esp, %ebp
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pushl %ebx
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/* Save the mode number in %bx */
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movl 0x8(%ebp), %ebx
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/* Clear bit D11 */
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andl 0xF7FF, %ebx
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call EXT_C(prot_to_real)
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.code16
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movw $0x4F02, %ax
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int $0x10
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movw %ax, %bx
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DATA32 call EXT_C(real_to_prot)
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.code32
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movzwl %bx, %eax
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popl %ebx
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popl %ebp
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ret
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/*
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* gateA20(int linear)
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*
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@ -4025,6 +4025,111 @@ static struct builtin builtin_testload =
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" step is to try loading a kernel."
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};
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/* testvbe MODE */
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static int
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testvbe_func (char *arg, int flags)
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{
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int mode_number;
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struct vbe_controller controller;
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struct vbe_mode mode;
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if (! *arg)
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{
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errnum = ERR_BAD_ARGUMENT;
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return 1;
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}
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if (! safe_parse_maxint (&arg, &mode_number))
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return 1;
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/* Preset `VBE2'. */
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grub_memmove (controller.signature, "VBE2", 4);
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/* Detect VBE BIOS. */
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if (get_vbe_controller_info (&controller) != 0x004F)
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{
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grub_printf (" VBE BIOS is not present.\n");
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return 0;
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}
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if (controller.version < 0x0200)
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{
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grub_printf (" VBE version %d.%d is not supported.\n",
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(int) (controller.version >> 8),
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(int) (controller.version & 0xFF));
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return 0;
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}
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if (get_vbe_mode_info (mode_number | (1 << 14), &mode) != 0x004F
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|| (mode.mode_attributes & 0x0091) != 0x0091)
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{
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grub_printf (" Mode 0x%x is not supported.\n", mode_number);
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return 0;
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}
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/* Now trip to the graphics mode. */
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if (set_vbe_mode (mode_number | (1 << 14)) != 0x004F)
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{
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grub_printf (" Switching to Mode 0x%x failed.\n", mode_number);
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return 0;
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}
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/* Draw something on the screen... */
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{
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unsigned char *base_buf = (unsigned char *) mode.phys_base;
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int scanline = controller.version >= 0x0300
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? mode.linear_bytes_per_scanline : mode.bytes_per_scanline;
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/* FIXME: this assumes that any depth is a modulo of 8. */
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int bpp = mode.bits_per_pixel / 8;
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int width = mode.x_resolution;
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int height = mode.y_resolution;
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int x, y;
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unsigned color = 0;
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/* Iterate drawing on the screen, until the user hits any key. */
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while (checkkey () == -1)
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{
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for (y = 0; y < height; y++)
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{
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unsigned char *line_buf = base_buf + scanline * y;
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for (x = 0; x < width; x++)
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{
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unsigned char *buf = line_buf + bpp * x;
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int i;
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for (i = 0; i < bpp; i++, buf++)
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*buf = (color >> (i * 8)) & 0xff;
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}
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color++;
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}
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}
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/* Discard the input. */
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getkey ();
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}
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/* Back to the default text mode. */
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if (set_vbe_mode (0x03) != 0x004F)
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{
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/* Why?! */
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grub_reboot ();
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}
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return 0;
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}
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static struct builtin builtin_testvbe =
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{
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"testvbe",
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testvbe_func,
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BUILTIN_CMDLINE,
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"testvbe MODE",
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"Test the VBE mode MODE. Hit any key to return."
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};
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#ifdef SUPPORT_NETBOOT
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/* tftpserver */
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@ -4141,6 +4246,125 @@ static struct builtin builtin_uppermem =
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" installed. Any system address range maps are discarded."
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};
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/* vbeprobe */
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static int
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vbeprobe_func (char *arg, int flags)
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{
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struct vbe_controller controller;
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unsigned short *mode_list;
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int mode_number = -1;
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int count = 1;
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auto unsigned long vbe_far_ptr_to_linear (unsigned long);
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unsigned long vbe_far_ptr_to_linear (unsigned long ptr)
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{
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unsigned short seg = (ptr >> 16);
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unsigned short off = (ptr & 0xFFFF);
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return (seg << 4) + off;
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}
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if (*arg)
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{
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if (! safe_parse_maxint (&arg, &mode_number))
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return 1;
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}
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/* Set the signature to `VBE2', to obtain VBE 3.0 information. */
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grub_memmove (controller.signature, "VBE2", 4);
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if (get_vbe_controller_info (&controller) != 0x004F)
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{
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grub_printf (" VBE BIOS is not present.\n");
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return 0;
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}
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/* Check the version. */
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if (controller.version < 0x0200)
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{
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grub_printf (" VBE version %d.%d is not supported.\n",
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(int) (controller.version >> 8),
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(int) (controller.version & 0xFF));
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return 0;
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}
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/* Print some information. */
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grub_printf (" VBE version %d.%d\n",
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(int) (controller.version >> 8),
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(int) (controller.version & 0xFF));
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/* Iterate probing modes. */
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for (mode_list
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= (unsigned short *) vbe_far_ptr_to_linear (controller.video_mode);
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*mode_list != 0xFFFF;
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mode_list++)
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{
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struct vbe_mode mode;
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if (get_vbe_mode_info (*mode_list | (1 << 14), &mode) != 0x004F)
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continue;
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/* Skip this, if this is not supported or linear frame buffer
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mode is not support. */
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if ((mode.mode_attributes & 0x0081) != 0x0081)
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continue;
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if (mode_number == -1 || mode_number == *mode_list)
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{
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char *model;
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switch (mode.memory_model)
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{
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case 0x00: model = "Text"; break;
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case 0x01: model = "CGA graphics"; break;
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case 0x02: model = "Hercules graphics"; break;
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case 0x03: model = "Planar"; break;
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case 0x04: model = "Packed pixel"; break;
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case 0x05: model = "Non-chain 4, 256 color"; break;
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case 0x06: model = "Direct Color"; break;
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case 0x07: model = "YUV"; break;
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default: model = "Unknown"; break;
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}
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grub_printf (" 0x%x: %s, %ux%ux%u\n",
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(unsigned) *mode_list,
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model,
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(unsigned) mode.x_resolution,
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(unsigned) mode.y_resolution,
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(unsigned) mode.bits_per_pixel);
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if (mode_number != -1)
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break;
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count++;
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/* XXX: arbitrary. */
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if (count == 22)
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{
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grub_printf ("\nHit any key to continue.\n");
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count = 0;
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getkey ();
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}
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}
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}
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if (mode_number != -1 && mode_number != *mode_list)
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grub_printf (" Mode 0x%x is not found or supported.\n", mode_number);
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return 0;
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}
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static struct builtin builtin_vbeprobe =
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{
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"vbeprobe",
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vbeprobe_func,
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BUILTIN_CMDLINE,
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"vbeprobe [MODE]",
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"Probe VBE information. If the mode number MODE is specified, show only"
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"the information about only the mode."
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};
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/* The table of builtin commands. Sorted in dictionary order. */
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struct builtin *builtin_table[] =
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@ -4211,6 +4435,7 @@ struct builtin *builtin_table[] =
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&builtin_terminal,
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#endif /* SUPPORT_SERIAL */
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&builtin_testload,
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&builtin_testvbe,
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#ifdef SUPPORT_NETBOOT
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&builtin_tftpserver,
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#endif /* SUPPORT_NETBOOT */
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@ -4218,5 +4443,6 @@ struct builtin *builtin_table[] =
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&builtin_title,
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&builtin_unhide,
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&builtin_uppermem,
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&builtin_vbeprobe,
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0
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};
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@ -1,6 +1,7 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1996 Erich Boleyn <erich@uruk.org>
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* Copyright (C) 2000 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -22,57 +23,69 @@
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*/
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struct multiboot_header
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{
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/* Must be MULTIBOOT_MAGIC - see below. */
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unsigned magic;
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{
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/* Must be MULTIBOOT_MAGIC - see below. */
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unsigned magic;
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/* Feature flags - see below. */
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unsigned flags;
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/*
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* Checksum
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*
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* The above fields plus this one must equal 0 mod 2^32.
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*/
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unsigned checksum;
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/* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */
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unsigned header_addr;
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unsigned load_addr;
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unsigned load_end_addr;
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unsigned bss_end_addr;
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unsigned entry_addr;
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/* Feature flags - see below. */
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unsigned flags;
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/*
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* Checksum
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*
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* The above fields plus this one must equal 0 mod 2^32.
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*/
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unsigned checksum;
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/* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */
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unsigned header_addr;
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unsigned load_addr;
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unsigned load_end_addr;
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unsigned bss_end_addr;
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unsigned entry_addr;
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};
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/* These are only valid if MULTIBOOT_VIDEO_MODE is set. */
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unsigned mode_type;
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unsigned width;
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unsigned height;
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unsigned depth;
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};
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/*
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* The entire multiboot_header must be contained
|
||||
* within the first MULTIBOOT_SEARCH bytes of the kernel image.
|
||||
*/
|
||||
#define MULTIBOOT_SEARCH 8192
|
||||
#define MULTIBOOT_SEARCH 8192
|
||||
#define MULTIBOOT_FOUND(addr, len) \
|
||||
(!((addr) & 0x3) && ((len) >= 12) && (*((int *)(addr)) == MULTIBOOT_MAGIC) \
|
||||
&& !(*((unsigned *)(addr)) + *((unsigned *)(addr+4)) \
|
||||
+ *((unsigned *)(addr+8))) \
|
||||
&& (!(MULTIBOOT_AOUT_KLUDGE & *((int *)(addr+4))) || ((len) >= 32)))
|
||||
(! ((addr) & 0x3) \
|
||||
&& (len) >= 12 \
|
||||
&& *((int *) (addr)) == MULTIBOOT_MAGIC \
|
||||
&& ! (*((unsigned *) (addr)) + *((unsigned *) (addr + 4)) \
|
||||
+ *((unsigned *) (addr + 8))) \
|
||||
&& (! (MULTIBOOT_AOUT_KLUDGE & *((int *) (addr + 4))) || (len) >= 32) \
|
||||
&& (! (MULTIBOOT_VIDEO_MODE & *((int *) (addr + 4))) || (len) >= 48))
|
||||
|
||||
/* Magic value identifying the multiboot_header. */
|
||||
#define MULTIBOOT_MAGIC 0x1BADB002
|
||||
#define MULTIBOOT_MAGIC 0x1BADB002
|
||||
|
||||
/*
|
||||
* Features flags for 'flags'.
|
||||
* If a boot loader sees a flag in MULTIBOOT_MUSTKNOW set
|
||||
* and it doesn't understand it, it must fail.
|
||||
*/
|
||||
#define MULTIBOOT_MUSTKNOW 0x0000FFFF
|
||||
#define MULTIBOOT_MUSTKNOW 0x0000FFFF
|
||||
|
||||
/* currently unsupported flags... this is a kind of version number. */
|
||||
#define MULTIBOOT_UNSUPPORTED 0x0000FFFC
|
||||
#define MULTIBOOT_UNSUPPORTED 0x0000FFF8
|
||||
|
||||
/* Align all boot modules on i386 page (4KB) boundaries. */
|
||||
#define MULTIBOOT_PAGE_ALIGN 0x00000001
|
||||
#define MULTIBOOT_PAGE_ALIGN 0x00000001
|
||||
|
||||
/* Must pass memory information to OS. */
|
||||
#define MULTIBOOT_MEMORY_INFO 0x00000002
|
||||
#define MULTIBOOT_MEMORY_INFO 0x00000002
|
||||
|
||||
/* This flag indicates the use of the other fields in the header. */
|
||||
#define MULTIBOOT_AOUT_KLUDGE 0x00010000
|
||||
/* Must pass video information to OS. */
|
||||
#define MULTIBOOT_VIDEO_MODE 0x00000004
|
||||
|
||||
/* This flag indicates the use of the address fields in the header. */
|
||||
#define MULTIBOOT_AOUT_KLUDGE 0x00010000
|
||||
|
|
|
|||
|
|
@ -54,7 +54,7 @@ struct AddrRangeDesc
|
|||
};
|
||||
|
||||
/* usable memory "Type", all others are reserved. */
|
||||
#define MB_ARD_MEMORY 1
|
||||
#define MB_ARD_MEMORY 1
|
||||
|
||||
|
||||
/* Drive Info structure. */
|
||||
|
|
@ -79,8 +79,8 @@ struct drive_info
|
|||
};
|
||||
|
||||
/* Drive Mode. */
|
||||
#define MB_DI_CHS_MODE 0
|
||||
#define MB_DI_LBA_MODE 1
|
||||
#define MB_DI_CHS_MODE 0
|
||||
#define MB_DI_LBA_MODE 1
|
||||
|
||||
|
||||
/* APM BIOS info. */
|
||||
|
|
@ -163,6 +163,14 @@ struct multiboot_info
|
|||
|
||||
/* APM table */
|
||||
unsigned long apm_table;
|
||||
|
||||
/* Video */
|
||||
unsigned long vbe_control_info;
|
||||
unsigned long vbe_mode_info;
|
||||
unsigned short vbe_mode;
|
||||
unsigned short vbe_interface_seg;
|
||||
unsigned short vbe_interface_off;
|
||||
unsigned short vbe_interface_len;
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
@ -170,38 +178,41 @@ struct multiboot_info
|
|||
*/
|
||||
|
||||
/* is there basic lower/upper memory information? */
|
||||
#define MB_INFO_MEMORY 0x1
|
||||
#define MB_INFO_MEMORY 0x00000001
|
||||
/* is there a boot device set? */
|
||||
#define MB_INFO_BOOTDEV 0x2
|
||||
#define MB_INFO_BOOTDEV 0x00000002
|
||||
/* is the command-line defined? */
|
||||
#define MB_INFO_CMDLINE 0x4
|
||||
#define MB_INFO_CMDLINE 0x00000004
|
||||
/* are there modules to do something with? */
|
||||
#define MB_INFO_MODS 0x8
|
||||
#define MB_INFO_MODS 0x00000008
|
||||
|
||||
/* These next two are mutually exclusive */
|
||||
|
||||
/* is there a symbol table loaded? */
|
||||
#define MB_INFO_AOUT_SYMS 0x10
|
||||
#define MB_INFO_AOUT_SYMS 0x00000010
|
||||
/* is there an ELF section header table? */
|
||||
#define MB_INFO_ELF_SHDR 0x20
|
||||
#define MB_INFO_ELF_SHDR 0x00000020
|
||||
|
||||
/* is there a full memory map? */
|
||||
#define MB_INFO_MEM_MAP 0x40
|
||||
#define MB_INFO_MEM_MAP 0x00000040
|
||||
|
||||
/* Is there drive info? */
|
||||
#define MB_INFO_DRIVE_INFO 0x80
|
||||
#define MB_INFO_DRIVE_INFO 0x00000080
|
||||
|
||||
/* Is there a config table? */
|
||||
#define MB_INFO_CONFIG_TABLE 0x100
|
||||
#define MB_INFO_CONFIG_TABLE 0x00000100
|
||||
|
||||
/* Is there a boot loader name? */
|
||||
#define MB_INFO_BOOT_LOADER_NAME 0x200
|
||||
#define MB_INFO_BOOT_LOADER_NAME 0x00000200
|
||||
|
||||
/* Is there a APM table? */
|
||||
#define MB_INFO_APM_TABLE 0x400
|
||||
#define MB_INFO_APM_TABLE 0x00000400
|
||||
|
||||
/* Is there video information? */
|
||||
#define MB_INFO_VIDEO_INFO 0x00000800
|
||||
|
||||
/*
|
||||
* The following value must be present in the EAX register.
|
||||
*/
|
||||
|
||||
#define MULTIBOOT_VALID 0x2BADB002
|
||||
#define MULTIBOOT_VALID 0x2BADB002
|
||||
|
|
|
|||
|
|
@ -420,6 +420,83 @@ struct mmar_desc
|
|||
unsigned long type; /* Type of address range. */
|
||||
};
|
||||
|
||||
/* VBE controller information. */
|
||||
struct vbe_controller
|
||||
{
|
||||
unsigned char signature[4];
|
||||
unsigned short version;
|
||||
unsigned long oem_string;
|
||||
unsigned long capabilities;
|
||||
unsigned long video_mode;
|
||||
unsigned short total_memory;
|
||||
unsigned short oem_software_rev;
|
||||
unsigned long oem_vendor_name;
|
||||
unsigned long oem_product_name;
|
||||
unsigned long oem_product_rev;
|
||||
unsigned char reserved[222];
|
||||
unsigned char oem_data[256];
|
||||
} __attribute__ ((packed));
|
||||
|
||||
/* VBE mode information. */
|
||||
struct vbe_mode
|
||||
{
|
||||
unsigned short mode_attributes;
|
||||
unsigned char win_a_attributes;
|
||||
unsigned char win_b_attributes;
|
||||
unsigned short win_granularity;
|
||||
unsigned short win_size;
|
||||
unsigned short win_a_segment;
|
||||
unsigned short win_b_segment;
|
||||
unsigned long win_func;
|
||||
unsigned short bytes_per_scanline;
|
||||
|
||||
/* >=1.2 */
|
||||
unsigned short x_resolution;
|
||||
unsigned short y_resolution;
|
||||
unsigned char x_char_size;
|
||||
unsigned char y_char_size;
|
||||
unsigned char number_of_planes;
|
||||
unsigned char bits_per_pixel;
|
||||
unsigned char number_of_banks;
|
||||
unsigned char memory_model;
|
||||
unsigned char bank_size;
|
||||
unsigned char number_of_image_pages;
|
||||
unsigned char reserved0;
|
||||
|
||||
/* direct color */
|
||||
unsigned char red_mask_size;
|
||||
unsigned char red_field_position;
|
||||
unsigned char green_mask_size;
|
||||
unsigned char green_field_position;
|
||||
unsigned char blue_mask_size;
|
||||
unsigned char blue_field_position;
|
||||
unsigned char reserved_mask_size;
|
||||
unsigned char reserved_field_position;
|
||||
unsigned char direct_color_mode_info;
|
||||
|
||||
/* >=2.0 */
|
||||
unsigned long phys_base;
|
||||
unsigned long reserved1;
|
||||
unsigned short reversed2;
|
||||
|
||||
/* >=3.0 */
|
||||
unsigned short linear_bytes_per_scanline;
|
||||
unsigned char banked_number_of_image_pages;
|
||||
unsigned char linear_number_of_image_pages;
|
||||
unsigned char linear_red_mask_size;
|
||||
unsigned char linear_red_field_position;
|
||||
unsigned char linear_green_mask_size;
|
||||
unsigned char linear_green_field_position;
|
||||
unsigned char linear_blue_mask_size;
|
||||
unsigned char linear_blue_field_position;
|
||||
unsigned char linear_reserved_mask_size;
|
||||
unsigned char linear_reserved_field_position;
|
||||
unsigned long max_pixel_clock;
|
||||
|
||||
unsigned char reserved3[189];
|
||||
} __attribute__ ((packed));
|
||||
|
||||
|
||||
#undef NULL
|
||||
#define NULL ((void *) 0)
|
||||
|
||||
|
|
@ -662,6 +739,15 @@ unsigned long get_rom_config_table (void);
|
|||
/* Get APM BIOS information. */
|
||||
void get_apm_info (void);
|
||||
|
||||
/* Get VBE controller information. */
|
||||
int get_vbe_controller_info (struct vbe_controller *controller);
|
||||
|
||||
/* Get VBE mode information. */
|
||||
int get_vbe_mode_info (int mode_number, struct vbe_mode *mode);
|
||||
|
||||
/* Set VBE mode. */
|
||||
int set_vbe_mode (int mode_number);
|
||||
|
||||
/* Return the data area immediately following our code. */
|
||||
int get_code_end (void);
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue