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| Rev | Author | Line No. | Line |
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| 1287 | vana | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Jakub Vana |
| 1287 | vana | 3 | * All rights reserved. |
| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1754 | jermar | 29 | /** @addtogroup ia32 |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 1754 | jermar | 32 | /** |
| 33 | * @file |
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| 34 | * @brief VESA frame buffer driver. |
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| 1702 | cejka | 35 | */ |
| 36 | |||
| 1287 | vana | 37 | #ifdef CONFIG_FB |
| 38 | |||
| 39 | #include <genarch/fb/fb.h> |
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| 1993 | decky | 40 | #include <genarch/fb/visuals.h> |
| 1477 | decky | 41 | #include <arch/drivers/vesa.h> |
| 1287 | vana | 42 | #include <putchar.h> |
| 43 | #include <mm/page.h> |
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| 1289 | vana | 44 | #include <mm/frame.h> |
| 1287 | vana | 45 | #include <mm/as.h> |
| 46 | #include <arch/mm/page.h> |
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| 47 | #include <synch/spinlock.h> |
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| 1310 | jermar | 48 | #include <arch/asm.h> |
| 1287 | vana | 49 | #include <arch/types.h> |
| 50 | #include <memstr.h> |
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| 1310 | jermar | 51 | #include <bitops.h> |
| 1287 | vana | 52 | |
| 1780 | jermar | 53 | uint32_t vesa_ph_addr; |
| 54 | uint16_t vesa_width; |
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| 55 | uint16_t vesa_height; |
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| 56 | uint16_t vesa_bpp; |
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| 57 | uint16_t vesa_scanline; |
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| 1287 | vana | 58 | |
| 4151 | decky | 59 | uint8_t vesa_red_mask; |
| 60 | uint8_t vesa_red_pos; |
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| 61 | |||
| 62 | uint8_t vesa_green_mask; |
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| 63 | uint8_t vesa_green_pos; |
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| 64 | |||
| 65 | uint8_t vesa_blue_mask; |
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| 66 | uint8_t vesa_blue_pos; |
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| 67 | |||
| 1287 | vana | 68 | int vesa_present(void) |
| 69 | { |
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| 4096 | decky | 70 | if ((vesa_width != 0xffff) && (vesa_height != 0xffff)) |
| 1310 | jermar | 71 | return true; |
| 4096 | decky | 72 | |
| 1287 | vana | 73 | return false; |
| 74 | } |
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| 75 | |||
| 76 | void vesa_init(void) |
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| 77 | { |
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| 1993 | decky | 78 | unsigned int visual; |
| 79 | |||
| 80 | switch (vesa_bpp) { |
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| 81 | case 8: |
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| 82 | visual = VISUAL_INDIRECT_8; |
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| 83 | break; |
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| 84 | case 16: |
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| 4151 | decky | 85 | if ((vesa_red_mask == 5) && (vesa_red_pos == 10) |
| 86 | && (vesa_green_mask == 5) && (vesa_green_pos == 5) |
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| 87 | && (vesa_blue_mask == 5) && (vesa_blue_pos == 0)) |
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| 88 | visual = VISUAL_RGB_5_5_5; |
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| 89 | else |
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| 90 | visual = VISUAL_RGB_5_6_5; |
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| 1993 | decky | 91 | break; |
| 92 | case 24: |
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| 93 | visual = VISUAL_RGB_8_8_8; |
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| 94 | break; |
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| 95 | case 32: |
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| 96 | visual = VISUAL_RGB_0_8_8_8; |
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| 97 | break; |
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| 98 | default: |
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| 3790 | svoboda | 99 | panic("Unsupported bits per pixel."); |
| 1993 | decky | 100 | } |
| 101 | |||
| 3672 | jermar | 102 | fb_properties_t vesa_props = { |
| 103 | .addr = vesa_ph_addr, |
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| 104 | .offset = 0, |
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| 105 | .x = vesa_width, |
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| 106 | .y = vesa_height, |
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| 107 | .scan = vesa_scanline, |
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| 108 | .visual = visual, |
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| 109 | }; |
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| 110 | fb_init(&vesa_props); |
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| 1287 | vana | 111 | } |
| 112 | |||
| 3707 | decky | 113 | void vesa_redraw(void) |
| 114 | { |
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| 115 | fb_redraw(); |
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| 116 | } |
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| 117 | |||
| 1287 | vana | 118 | #endif |
| 1702 | cejka | 119 | |
| 1754 | jermar | 120 | /** @} |
| 1702 | cejka | 121 | */ |