| 1 | /*
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| 2 | * Copyright (c) 2006 Jakub Vana
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| 3 | * All rights reserved.
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| 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 |
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| 29 | /** @addtogroup genarch
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| 30 | * @{
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| 31 | */
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| 32 | /**
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| 33 | * @file
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| 34 | * @brief Boot framebuffer driver.
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| 35 | */
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| 36 |
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| 37 | #include <typedefs.h>
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| 38 | #include <genarch/fb/fb.h>
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| 39 | #include <genarch/fb/bfb.h>
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| 40 | #include <console/console.h>
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| 41 |
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| 42 | uintptr_t bfb_addr = (uintptr_t) -1;
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| 43 | uint32_t bfb_width = 0;
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| 44 | uint32_t bfb_height = 0;
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| 45 | uint16_t bfb_bpp = 0;
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| 46 | uint32_t bfb_scanline = 0;
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| 47 |
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| 48 | uint8_t bfb_red_pos = 0;
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| 49 | uint8_t bfb_red_size = 0;
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| 50 |
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| 51 | uint8_t bfb_green_pos = 0;
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| 52 | uint8_t bfb_green_size = 0;
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| 53 |
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| 54 | uint8_t bfb_blue_pos = 0;
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| 55 | uint8_t bfb_blue_size = 0;
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| 56 |
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| 57 | bool bfb_init(void)
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| 58 | {
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| 59 | if ((bfb_width == 0) || (bfb_height == 0))
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| 60 | return false;
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| 61 |
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| 62 | fb_properties_t bfb_props = {
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| 63 | .addr = bfb_addr,
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| 64 | .offset = 0,
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| 65 | .x = bfb_width,
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| 66 | .y = bfb_height,
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| 67 | .scan = bfb_scanline
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| 68 | };
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| 69 |
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| 70 | switch (bfb_bpp) {
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| 71 | case 8:
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| 72 | bfb_props.visual = VISUAL_INDIRECT_8;
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| 73 | break;
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| 74 | case 16:
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| 75 | if ((bfb_red_pos == 10) && (bfb_red_size == 5) &&
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| 76 | (bfb_green_pos == 5) && (bfb_green_size == 5) &&
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| 77 | (bfb_blue_pos == 0) && (bfb_blue_size == 5))
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| 78 | bfb_props.visual = VISUAL_RGB_5_5_5_LE;
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| 79 | else
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| 80 | bfb_props.visual = VISUAL_RGB_5_6_5_LE;
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| 81 | break;
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| 82 | case 24:
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| 83 | bfb_props.visual = VISUAL_BGR_8_8_8;
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| 84 | break;
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| 85 | case 32:
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| 86 | bfb_props.visual = VISUAL_BGR_8_8_8_0;
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| 87 | break;
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| 88 | default:
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| 89 | LOG("Unsupported bits per pixel.");
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| 90 | return false;
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| 91 | }
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| 92 |
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| 93 | outdev_t *fbdev = fb_init(&bfb_props);
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| 94 | if (!fbdev)
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| 95 | return false;
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| 96 |
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| 97 | stdout_wire(fbdev);
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| 98 | return true;
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| 99 | }
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| 100 |
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| 101 | /** @}
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| 102 | */
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