| Jeremy Fitzhardinge | c2419b4 | 2011-05-31 10:50:10 -0400 | [diff] [blame] | 1 | #include <linux/screen_info.h> |
| 2 | #include <linux/init.h> |
| 3 | |
| 4 | #include <asm/bootparam.h> |
| 5 | #include <asm/setup.h> |
| 6 | |
| 7 | #include <xen/interface/xen.h> |
| 8 | |
| 9 | #include "xen-ops.h" |
| 10 | |
| 11 | void __init xen_init_vga(const struct dom0_vga_console_info *info, size_t size) |
| 12 | { |
| 13 | struct screen_info *screen_info = &boot_params.screen_info; |
| 14 | |
| 15 | /* This is drawn from a dump from vgacon:startup in |
| 16 | * standard Linux. */ |
| 17 | screen_info->orig_video_mode = 3; |
| 18 | screen_info->orig_video_isVGA = 1; |
| 19 | screen_info->orig_video_lines = 25; |
| 20 | screen_info->orig_video_cols = 80; |
| 21 | screen_info->orig_video_ega_bx = 3; |
| 22 | screen_info->orig_video_points = 16; |
| 23 | screen_info->orig_y = screen_info->orig_video_lines - 1; |
| 24 | |
| 25 | switch (info->video_type) { |
| 26 | case XEN_VGATYPE_TEXT_MODE_3: |
| 27 | if (size < offsetof(struct dom0_vga_console_info, u.text_mode_3) |
| 28 | + sizeof(info->u.text_mode_3)) |
| 29 | break; |
| 30 | screen_info->orig_video_lines = info->u.text_mode_3.rows; |
| 31 | screen_info->orig_video_cols = info->u.text_mode_3.columns; |
| 32 | screen_info->orig_x = info->u.text_mode_3.cursor_x; |
| 33 | screen_info->orig_y = info->u.text_mode_3.cursor_y; |
| 34 | screen_info->orig_video_points = |
| 35 | info->u.text_mode_3.font_height; |
| 36 | break; |
| 37 | |
| Jan Beulich | aa387d63 | 2012-02-09 11:33:51 +0800 | [diff] [blame] | 38 | case XEN_VGATYPE_EFI_LFB: |
| Jeremy Fitzhardinge | c2419b4 | 2011-05-31 10:50:10 -0400 | [diff] [blame] | 39 | case XEN_VGATYPE_VESA_LFB: |
| 40 | if (size < offsetof(struct dom0_vga_console_info, |
| 41 | u.vesa_lfb.gbl_caps)) |
| 42 | break; |
| 43 | screen_info->orig_video_isVGA = VIDEO_TYPE_VLFB; |
| 44 | screen_info->lfb_width = info->u.vesa_lfb.width; |
| 45 | screen_info->lfb_height = info->u.vesa_lfb.height; |
| 46 | screen_info->lfb_depth = info->u.vesa_lfb.bits_per_pixel; |
| 47 | screen_info->lfb_base = info->u.vesa_lfb.lfb_base; |
| 48 | screen_info->lfb_size = info->u.vesa_lfb.lfb_size; |
| 49 | screen_info->lfb_linelength = info->u.vesa_lfb.bytes_per_line; |
| 50 | screen_info->red_size = info->u.vesa_lfb.red_size; |
| 51 | screen_info->red_pos = info->u.vesa_lfb.red_pos; |
| 52 | screen_info->green_size = info->u.vesa_lfb.green_size; |
| 53 | screen_info->green_pos = info->u.vesa_lfb.green_pos; |
| 54 | screen_info->blue_size = info->u.vesa_lfb.blue_size; |
| 55 | screen_info->blue_pos = info->u.vesa_lfb.blue_pos; |
| 56 | screen_info->rsvd_size = info->u.vesa_lfb.rsvd_size; |
| 57 | screen_info->rsvd_pos = info->u.vesa_lfb.rsvd_pos; |
| Jan Beulich | aa387d63 | 2012-02-09 11:33:51 +0800 | [diff] [blame] | 58 | |
| 59 | if (info->video_type == XEN_VGATYPE_EFI_LFB) { |
| 60 | screen_info->orig_video_isVGA = VIDEO_TYPE_EFI; |
| 61 | break; |
| 62 | } |
| 63 | |
| Jeremy Fitzhardinge | c2419b4 | 2011-05-31 10:50:10 -0400 | [diff] [blame] | 64 | if (size >= offsetof(struct dom0_vga_console_info, |
| 65 | u.vesa_lfb.gbl_caps) |
| 66 | + sizeof(info->u.vesa_lfb.gbl_caps)) |
| 67 | screen_info->capabilities = info->u.vesa_lfb.gbl_caps; |
| 68 | if (size >= offsetof(struct dom0_vga_console_info, |
| 69 | u.vesa_lfb.mode_attrs) |
| 70 | + sizeof(info->u.vesa_lfb.mode_attrs)) |
| 71 | screen_info->vesa_attributes = info->u.vesa_lfb.mode_attrs; |
| 72 | break; |
| 73 | } |
| 74 | } |