WebSVN – HelenOS – Diff – /branches/dd/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;
 
uint8_t vesa_red_mask;
uint8_t vesa_red_pos;
 
uint8_t vesa_green_mask;
uint8_t vesa_green_pos;
 
uint8_t vesa_blue_mask;
uint8_t vesa_blue_pos;
 
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:
        if ((vesa_red_mask == 5) && (vesa_red_pos == 10)
            && (vesa_green_mask == 5) && (vesa_green_pos == 5)
            && (vesa_blue_mask == 5) && (vesa_blue_pos == 0))
            visual = VISUAL_RGB_5_5_5_LE;
        else
            visual = VISUAL_RGB_5_6_5_LE;
        break;
    case 24:
        visual = VISUAL_BGR_8_8_8;
        break;
    case 32:
        visual = VISUAL_BGR_8_8_8_0;
        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 4678	Rev 4688
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	uint8_t vesa_red_mask;	59	uint8_t vesa_red_mask;
60	uint8_t vesa_red_pos;	60	uint8_t vesa_red_pos;
61		61
62	uint8_t vesa_green_mask;	62	uint8_t vesa_green_mask;
63	uint8_t vesa_green_pos;	63	uint8_t vesa_green_pos;
64		64
65	uint8_t vesa_blue_mask;	65	uint8_t vesa_blue_mask;
66	uint8_t vesa_blue_pos;	66	uint8_t vesa_blue_pos;
67		67
68	int vesa_present(void)	68	int vesa_present(void)
69	{	69	{
70	if ((vesa_width != 0xffff) && (vesa_height != 0xffff))	70	if ((vesa_width != 0xffff) && (vesa_height != 0xffff))
71	return true;	71	return true;
72		72
73	return false;	73	return false;
74	}	74	}
75		75
76	void vesa_init(void)	76	void vesa_init(void)
77	{	77	{
78	unsigned int visual;	78	unsigned int visual;
79		79
80	switch (vesa_bpp) {	80	switch (vesa_bpp) {
81	case 8:	81	case 8:
82	visual = VISUAL_INDIRECT_8;	82	visual = VISUAL_INDIRECT_8;
83	break;	83	break;
84	case 16:	84	case 16:
85	if ((vesa_red_mask == 5) && (vesa_red_pos == 10)	85	if ((vesa_red_mask == 5) && (vesa_red_pos == 10)
86	&& (vesa_green_mask == 5) && (vesa_green_pos == 5)	86	&& (vesa_green_mask == 5) && (vesa_green_pos == 5)
87	&& (vesa_blue_mask == 5) && (vesa_blue_pos == 0))	87	&& (vesa_blue_mask == 5) && (vesa_blue_pos == 0))
88	visual = VISUAL_BGR_5_5_5;	88	visual = VISUAL_RGB_5_5_5_LE;
89	else	89	else
90	visual = VISUAL_BGR_5_6_5;	90	visual = VISUAL_RGB_5_6_5_LE;
91	break;	91	break;
92	case 24:	92	case 24:
93	visual = VISUAL_BGR_8_8_8;	93	visual = VISUAL_BGR_8_8_8;
94	break;	94	break;
95	case 32:	95	case 32:
96	visual = VISUAL_BGR_8_8_8_0;	96	visual = VISUAL_BGR_8_8_8_0;
97	break;	97	break;
98	default:	98	default:
99	panic("Unsupported bits per pixel.");	99	panic("Unsupported bits per pixel.");
100	}	100	}
101		101
102	fb_properties_t vesa_props = {	102	fb_properties_t vesa_props = {
103	.addr = vesa_ph_addr,	103	.addr = vesa_ph_addr,
104	.offset = 0,	104	.offset = 0,
105	.x = vesa_width,	105	.x = vesa_width,
106	.y = vesa_height,	106	.y = vesa_height,
107	.scan = vesa_scanline,	107	.scan = vesa_scanline,
108	.visual = visual,	108	.visual = visual,
109	};	109	};
110	fb_init(&vesa_props);	110	fb_init(&vesa_props);
111	}	111	}
112		112
113	void vesa_redraw(void)	113	void vesa_redraw(void)
114	{	114	{
115	fb_redraw();	115	fb_redraw();
116	}	116	}
117		117
118	#endif	118	#endif
119		119
120	/** @}	120	/** @}
121	*/	121	*/
122		122

Subversion Repositories HelenOS

(root)/branches/dd/kernel/arch/ia32/src/drivers/vesa.c – Rev 4678 → 4688