WebSVN – HelenOS – Diff – /branches/dynload/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 <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) && (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_properties_t vesa_props = {
        .addr = vesa_ph_addr,
        .offset = 0,
        .x = vesa_width,
        .y = vesa_height,
        .scan = vesa_scanline,
        .visual = visual,
    };
    fb_init(&vesa_props);
}
 
void vesa_redraw(void)
{
    fb_redraw();
}
 
#endif
 
/** @}
 */
 

Rev 4339	Rev 4346
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 <memstr.h>	50	#include <memstr.h>
51	#include <bitops.h>	51	#include <bitops.h>
52		52
53	uint32_t vesa_ph_addr;	53	uint32_t vesa_ph_addr;
54	uint16_t vesa_width;	54	uint16_t vesa_width;
55	uint16_t vesa_height;	55	uint16_t vesa_height;
56	uint16_t vesa_bpp;	56	uint16_t vesa_bpp;
57	uint16_t vesa_scanline;	57	uint16_t vesa_scanline;
58		58
59	int vesa_present(void)	59	int vesa_present(void)
60	{	60	{
61	if (vesa_width != 0xffff)	-
62	return true;	-
63	if (vesa_height != 0xffff)	61	if ((vesa_width != 0xffff) && (vesa_height != 0xffff))
64	return true;	62	return true;
-		63
65	return false;	64	return false;
66	}	65	}
67		66
68	void vesa_init(void)	67	void vesa_init(void)
69	{	68	{
70	unsigned int visual;	69	unsigned int visual;
71		70
72	switch (vesa_bpp) {	71	switch (vesa_bpp) {
73	case 8:	72	case 8:
74	visual = VISUAL_INDIRECT_8;	73	visual = VISUAL_INDIRECT_8;
75	break;	74	break;
76	case 16:	75	case 16:
77	visual = VISUAL_RGB_5_6_5;	76	visual = VISUAL_RGB_5_6_5;
78	break;	77	break;
79	case 24:	78	case 24:
80	visual = VISUAL_RGB_8_8_8;	79	visual = VISUAL_RGB_8_8_8;
81	break;	80	break;
82	case 32:	81	case 32:
83	visual = VISUAL_RGB_0_8_8_8;	82	visual = VISUAL_RGB_0_8_8_8;
84	break;	83	break;
85	default:	84	default:
86	panic("Unsupported bits per pixel.");	85	panic("Unsupported bits per pixel.");
87	}	86	}
88		87
89	fb_properties_t vesa_props = {	88	fb_properties_t vesa_props = {
90	.addr = vesa_ph_addr,	89	.addr = vesa_ph_addr,
91	.offset = 0,	90	.offset = 0,
92	.x = vesa_width,	91	.x = vesa_width,
93	.y = vesa_height,	92	.y = vesa_height,
94	.scan = vesa_scanline,	93	.scan = vesa_scanline,
95	.visual = visual,	94	.visual = visual,
96	};	95	};
97	fb_init(&vesa_props);	96	fb_init(&vesa_props);
98	}	97	}
99		98
100	void vesa_redraw(void)	99	void vesa_redraw(void)
101	{	100	{
102	fb_redraw();	101	fb_redraw();
103	}	102	}
104		103
105	#endif	104	#endif
106		105
107	/** @}	106	/** @}
108	*/	107	*/
109		108

Subversion Repositories HelenOS

(root)/branches/dynload/kernel/arch/ia32/src/drivers/vesa.c – Rev 4339 → 4346