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