WebSVN – HelenOS – Diff – /trunk/kernel/arch/ia32/src/drivers/vesa.c


/*
 * Copyright (c) 2006 Jakub Vana
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup ia32   
 * @{
 */
/**
 * @file
 * @brief VESA frame buffer driver.
 */
 
#ifdef CONFIG_FB
 
#include <genarch/fb/fb.h>
#include <genarch/fb/visuals.h>
#include <arch/drivers/vesa.h>
#include <putchar.h>
#include <mm/page.h>
#include <mm/frame.h>
#include <mm/as.h>
#include <arch/mm/page.h>
#include <synch/spinlock.h>
#include <arch/asm.h>
#include <arch/types.h>
#include <typedefs.h>
#include <memstr.h>
#include <bitops.h>
 
uint32_t vesa_ph_addr;
uint16_t vesa_width;
uint16_t vesa_height;
uint16_t vesa_bpp;
uint16_t vesa_scanline;
 
int vesa_present(void)
{
    if (vesa_width != 0xffff)
        return true;
    if (vesa_height != 0xffff)
        return true;
    return false;
}
 
void vesa_init(void)
{
    unsigned int visual;
   
    switch (vesa_bpp) {
    case 8:
        visual = VISUAL_INDIRECT_8;
        break;
    case 16:
        visual = VISUAL_RGB_5_6_5;
        break;
    case 24:
        visual = VISUAL_RGB_8_8_8;
        break;
    case 32:
        visual = VISUAL_RGB_0_8_8_8;
        break;
    default:
        panic("Unsupported bits per pixel");
    }
   
    fb_init(vesa_ph_addr, vesa_width, vesa_height, vesa_scanline, visual);
}
 
#endif
 
/** @}
 */
 

Rev 1993	Rev 2071
1	/*	1	/*
2	* Copyright (C) 2006 Jakub Vana	2	* Copyright (c) 2006 Jakub Vana
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	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	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.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	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	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	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	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	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	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.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup ia32	29	/** @addtogroup ia32
30	* @{	30	* @{
31	*/	31	*/
32	/**	32	/**
33	* @file	33	* @file
34	* @brief VESA frame buffer driver.	34	* @brief VESA frame buffer driver.
35	*/	35	*/
36		36
37	#ifdef CONFIG_FB	37	#ifdef CONFIG_FB
38		38
39	#include <genarch/fb/fb.h>	39	#include <genarch/fb/fb.h>
40	#include <genarch/fb/visuals.h>	40	#include <genarch/fb/visuals.h>
41	#include <arch/drivers/vesa.h>	41	#include <arch/drivers/vesa.h>
42	#include <putchar.h>	42	#include <putchar.h>
43	#include <mm/page.h>	43	#include <mm/page.h>
44	#include <mm/frame.h>	44	#include <mm/frame.h>
45	#include <mm/as.h>	45	#include <mm/as.h>
46	#include <arch/mm/page.h>	46	#include <arch/mm/page.h>
47	#include <synch/spinlock.h>	47	#include <synch/spinlock.h>
48	#include <arch/asm.h>	48	#include <arch/asm.h>
49	#include <arch/types.h>	49	#include <arch/types.h>
50	#include <typedefs.h>	50	#include <typedefs.h>
51	#include <memstr.h>	51	#include <memstr.h>
52	#include <bitops.h>	52	#include <bitops.h>
53		53
54	uint32_t vesa_ph_addr;	54	uint32_t vesa_ph_addr;
55	uint16_t vesa_width;	55	uint16_t vesa_width;
56	uint16_t vesa_height;	56	uint16_t vesa_height;
57	uint16_t vesa_bpp;	57	uint16_t vesa_bpp;
58	uint16_t vesa_scanline;	58	uint16_t vesa_scanline;
59		59
60	int vesa_present(void)	60	int vesa_present(void)
61	{	61	{
62	if (vesa_width != 0xffff)	62	if (vesa_width != 0xffff)
63	return true;	63	return true;
64	if (vesa_height != 0xffff)	64	if (vesa_height != 0xffff)
65	return true;	65	return true;
66	return false;	66	return false;
67	}	67	}
68		68
69	void vesa_init(void)	69	void vesa_init(void)
70	{	70	{
71	unsigned int visual;	71	unsigned int visual;
72		72
73	switch (vesa_bpp) {	73	switch (vesa_bpp) {
74	case 8:	74	case 8:
75	visual = VISUAL_INDIRECT_8;	75	visual = VISUAL_INDIRECT_8;
76	break;	76	break;
77	case 16:	77	case 16:
78	visual = VISUAL_RGB_5_6_5;	78	visual = VISUAL_RGB_5_6_5;
79	break;	79	break;
80	case 24:	80	case 24:
81	visual = VISUAL_RGB_8_8_8;	81	visual = VISUAL_RGB_8_8_8;
82	break;	82	break;
83	case 32:	83	case 32:
84	visual = VISUAL_RGB_0_8_8_8;	84	visual = VISUAL_RGB_0_8_8_8;
85	break;	85	break;
86	default:	86	default:
87	panic("Unsupported bits per pixel");	87	panic("Unsupported bits per pixel");
88	}	88	}
89		89
90	fb_init(vesa_ph_addr, vesa_width, vesa_height, vesa_scanline, visual);	90	fb_init(vesa_ph_addr, vesa_width, vesa_height, vesa_scanline, visual);
91	}	91	}
92		92
93	#endif	93	#endif
94		94
95	/** @}	95	/** @}
96	*/	96	*/
97		97

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/ia32/src/drivers/vesa.c – Rev 1993 → 2071