WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/mips32/src/drivers/msim.c


/*
 * Copyright (C) 2005 Ondrej Palkovsky
 * 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.
 */
 
#include <interrupt.h>
#include <console/chardev.h>
#include <arch/drivers/msim.h>
#include <arch/cp0.h>
#include <console/console.h>
 
static chardev_t console;
 
static void msim_write(chardev_t *dev, const char ch);
static void msim_enable(chardev_t *dev);
static void msim_disable(chardev_t *dev);
 
static chardev_operations_t msim_ops = {
    .resume = msim_enable,
    .suspend = msim_disable,
    .write = msim_write
};
 
/** Putchar that works with MSIM & gxemul */
void msim_write(chardev_t *dev, const char ch)
{
    *((char *) MSIM_VIDEORAM) = ch;
}
 
/* Called from getc(). */
void msim_enable(chardev_t *dev)
{
    cp0_unmask_int(MSIM_KBD_IRQ);
}
 
/* Called from getc(). */
void msim_disable(chardev_t *dev)
{
    cp0_mask_int(MSIM_KBD_IRQ);
}
 
#include <print.h>
/** Process keyboard interrupt. */
static void msim_interrupt(int n, void *stack)
{
    char ch;
 
    ch = *((char *) MSIM_KBD_ADDRESS);
    if (ch =='\r')
        ch = '\n';
    if (ch == 0x7f)
        ch = '\b';
    chardev_push_character(&console, ch);
}
 
 
/* Return console object representing msim console */
void msim_console(void)
{
    chardev_initialize("msim_console", &console, &msim_ops);
 
    int_register(MSIM_KBD_IRQ, "msim_kbd", msim_interrupt);
 
    cp0_unmask_int(MSIM_KBD_IRQ);
 
    stdin = &console;
    stdout = &console;
}
 

Rev 590	Rev 606
1	/*	1	/*
2	* Copyright (C) 2005 Ondrej Palkovsky	2	* Copyright (C) 2005 Ondrej Palkovsky
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	#include <interrupt.h>	29	#include <interrupt.h>
30	#include <console/chardev.h>	30	#include <console/chardev.h>
31	#include <arch/drivers/msim.h>	31	#include <arch/drivers/msim.h>
32	#include <arch/cp0.h>	32	#include <arch/cp0.h>
-		33	#include <console/console.h>
33		34
34	static chardev_t console;	35	static chardev_t console;
35		36
36	static void msim_write(chardev_t *dev, const char ch);	37	static void msim_write(chardev_t *dev, const char ch);
37	static void msim_enable(chardev_t *dev);	38	static void msim_enable(chardev_t *dev);
38	static void msim_disable(chardev_t *dev);	39	static void msim_disable(chardev_t *dev);
39		40
40	static chardev_operations_t msim_ops = {	41	static chardev_operations_t msim_ops = {
41	.resume = msim_enable,	42	.resume = msim_enable,
42	.suspend = msim_disable,	43	.suspend = msim_disable,
43	.write = msim_write	44	.write = msim_write
44	};	45	};
45		46
46	/** Putchar that works with MSIM & gxemul */	47	/** Putchar that works with MSIM & gxemul */
47	void msim_write(chardev_t *dev, const char ch)	48	void msim_write(chardev_t *dev, const char ch)
48	{	49	{
49	((char ) MSIM_VIDEORAM) = ch;	50	((char ) MSIM_VIDEORAM) = ch;
50	}	51	}
51		52
52	/* Called from getc(). */	53	/* Called from getc(). */
53	void msim_enable(chardev_t *dev)	54	void msim_enable(chardev_t *dev)
54	{	55	{
55	cp0_unmask_int(MSIM_KBD_IRQ);	56	cp0_unmask_int(MSIM_KBD_IRQ);
56	}	57	}
57		58
58	/* Called from getc(). */	59	/* Called from getc(). */
59	void msim_disable(chardev_t *dev)	60	void msim_disable(chardev_t *dev)
60	{	61	{
61	cp0_mask_int(MSIM_KBD_IRQ);	62	cp0_mask_int(MSIM_KBD_IRQ);
62	}	63	}
63		64
64	#include <print.h>	65	#include <print.h>
65	/** Process keyboard interrupt. */	66	/** Process keyboard interrupt. */
66	static void msim_interrupt(int n, void *stack)	67	static void msim_interrupt(int n, void *stack)
67	{	68	{
68	char ch;	69	char ch;
69		70
70	ch = ((char ) MSIM_KBD_ADDRESS);	71	ch = ((char ) MSIM_KBD_ADDRESS);
71	if (ch =='\r')	72	if (ch =='\r')
72	ch = '\n';	73	ch = '\n';
73	if (ch == 0x7f)	74	if (ch == 0x7f)
74	ch = '\b';	75	ch = '\b';
75	chardev_push_character(&console, ch);	76	chardev_push_character(&console, ch);
76	}	77	}
77		78
78		79
79	/* Return console object representing msim console */	80	/* Return console object representing msim console */
80	chardev_t * msim_console(void)	81	void msim_console(void)
81	{	82	{
82	chardev_initialize("msim_console", &console, &msim_ops);	83	chardev_initialize("msim_console", &console, &msim_ops);
83		84
84	int_register(MSIM_KBD_IRQ, "msim_kbd", msim_interrupt);	85	int_register(MSIM_KBD_IRQ, "msim_kbd", msim_interrupt);
85		86
86	cp0_unmask_int(MSIM_KBD_IRQ);	87	cp0_unmask_int(MSIM_KBD_IRQ);
87		88
88	return &console;	89	stdin = &console;
-		90	stdout = &console;
89	}	91	}
90		92

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/mips32/src/drivers/msim.c – Rev 590 → 606