WebSVN – HelenOS – Diff – /trunk/kernel/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.
 */
 
/** @addtogroup mips32
 * @{
 */
/** @file
 */
 
#include <interrupt.h>
#include <ipc/irq.h>
#include <console/chardev.h>
#include <arch/drivers/msim.h>
#include <arch/cp0.h>
#include <console/console.h>
#include <sysinfo/sysinfo.h>
#include <ddi/ddi.h>
 
static chardev_t console;
static irq_t msim_irq;
 
static void msim_write(chardev_t *dev, const char ch, bool silent);
static void msim_enable(chardev_t *dev);
static void msim_disable(chardev_t *dev);
static char msim_do_read(chardev_t *dev);
 
static chardev_operations_t msim_ops = {
    .resume = msim_enable,
    .suspend = msim_disable,
    .write = msim_write,
    .read = msim_do_read,
};
 
/** Putchar that works with MSIM & gxemul */
void msim_write(chardev_t *dev, const char ch, bool silent)
{
    if (!silent)
        *((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);
}
 
/** Read character using polling, assume interrupts disabled */
static char msim_do_read(chardev_t *dev)
{
    char ch;
   
    while (1) {
        ch = *((volatile char *) MSIM_KBD_ADDRESS);
        if (ch) {
            if (ch == '\r')
                return '\n';
            if (ch == 0x7f)
                return '\b';
            return ch;
        }
    }
}
 
/** Process keyboard interrupt. */
static void msim_irq_handler(irq_t *irq)
{
    if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox))
        ipc_irq_send_notif(irq);
    else {
        char ch = 0;
       
        ch = *((char *) MSIM_KBD_ADDRESS);
        if (ch =='\r')
            ch = '\n';
        if (ch == 0x7f)
            ch = '\b';
        chardev_push_character(&console, ch);
    }
}
 
static irq_ownership_t msim_claim(irq_t *irq)
{
    return IRQ_ACCEPT;
}
 
void msim_kbd_grab(void)
{
    ipl_t ipl = interrupts_disable();
    spinlock_lock(&msim_irq.lock);
    msim_irq.notif_cfg.notify = false;
    spinlock_unlock(&msim_irq.lock);
    interrupts_restore(ipl);
}
 
void msim_kbd_release(void)
{
    ipl_t ipl = interrupts_disable();
    spinlock_lock(&msim_irq.lock);
    if (msim_irq.notif_cfg.answerbox)
        msim_irq.notif_cfg.notify = true;
    spinlock_unlock(&msim_irq.lock);
    interrupts_restore(ipl);
}
 
 
/* Return console object representing msim console */
void msim_console(devno_t devno)
{
    chardev_initialize("msim_console", &console, &msim_ops);
    stdin = &console;
    stdout = &console;
   
    irq_initialize(&msim_irq);
    msim_irq.devno = devno;
    msim_irq.inr = MSIM_KBD_IRQ;
    msim_irq.claim = msim_claim;
    msim_irq.handler = msim_irq_handler;
    irq_register(&msim_irq);
   
    cp0_unmask_int(MSIM_KBD_IRQ);
   
    sysinfo_set_item_val("kbd", NULL, true);
    sysinfo_set_item_val("kbd.devno", NULL, devno);
    sysinfo_set_item_val("kbd.inr", NULL, MSIM_KBD_IRQ);
    sysinfo_set_item_val("kbd.address.virtual", NULL, MSIM_KBD_ADDRESS);
   
    sysinfo_set_item_val("fb", NULL, true);
    sysinfo_set_item_val("fb.kind", NULL, 3);
    sysinfo_set_item_val("fb.address.physical", NULL, KA2PA(MSIM_VIDEORAM));
}
 
/** @}
 */
 

Rev 3908	Rev 3941
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	/** @addtogroup mips32	29	/** @addtogroup mips32
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <interrupt.h>	35	#include <interrupt.h>
36	#include <ipc/irq.h>	36	#include <ipc/irq.h>
37	#include <console/chardev.h>	37	#include <console/chardev.h>
38	#include <arch/drivers/msim.h>	38	#include <arch/drivers/msim.h>
39	#include <arch/cp0.h>	39	#include <arch/cp0.h>
40	#include <console/console.h>	40	#include <console/console.h>
41	#include <sysinfo/sysinfo.h>	41	#include <sysinfo/sysinfo.h>
42	#include <ddi/ddi.h>	42	#include <ddi/ddi.h>
43		43
44	static chardev_t console;	44	static chardev_t console;
45	static irq_t msim_irq;	45	static irq_t msim_irq;
46		46
47	static void msim_write(chardev_t *dev, const char ch, bool silent);	47	static void msim_write(chardev_t *dev, const char ch, bool silent);
48	static void msim_enable(chardev_t *dev);	48	static void msim_enable(chardev_t *dev);
49	static void msim_disable(chardev_t *dev);	49	static void msim_disable(chardev_t *dev);
50	static char msim_do_read(chardev_t *dev);	50	static char msim_do_read(chardev_t *dev);
51		51
52	static chardev_operations_t msim_ops = {	52	static chardev_operations_t msim_ops = {
53	.resume = msim_enable,	53	.resume = msim_enable,
54	.suspend = msim_disable,	54	.suspend = msim_disable,
55	.write = msim_write,	55	.write = msim_write,
56	.read = msim_do_read,	56	.read = msim_do_read,
57	};	57	};
58		58
59	/** Putchar that works with MSIM & gxemul */	59	/** Putchar that works with MSIM & gxemul */
60	void msim_write(chardev_t *dev, const char ch, bool silent)	60	void msim_write(chardev_t *dev, const char ch, bool silent)
61	{	61	{
62	if (!silent)	62	if (!silent)
63	((char ) MSIM_VIDEORAM) = ch;	63	((char ) MSIM_VIDEORAM) = ch;
64	}	64	}
65		65
66	/* Called from getc(). */	66	/* Called from getc(). */
67	void msim_enable(chardev_t *dev)	67	void msim_enable(chardev_t *dev)
68	{	68	{
69	cp0_unmask_int(MSIM_KBD_IRQ);	69	cp0_unmask_int(MSIM_KBD_IRQ);
70	}	70	}
71		71
72	/* Called from getc(). */	72	/* Called from getc(). */
73	void msim_disable(chardev_t *dev)	73	void msim_disable(chardev_t *dev)
74	{	74	{
75	cp0_mask_int(MSIM_KBD_IRQ);	75	cp0_mask_int(MSIM_KBD_IRQ);
76	}	76	}
77		77
78	/** Read character using polling, assume interrupts disabled */	78	/** Read character using polling, assume interrupts disabled */
79	static char msim_do_read(chardev_t *dev)	79	static char msim_do_read(chardev_t *dev)
80	{	80	{
81	char ch;	81	char ch;
82		82
83	while (1) {	83	while (1) {
84	ch = ((volatile char ) MSIM_KBD_ADDRESS);	84	ch = ((volatile char ) MSIM_KBD_ADDRESS);
85	if (ch) {	85	if (ch) {
86	if (ch == '\r')	86	if (ch == '\r')
87	return '\n';	87	return '\n';
88	if (ch == 0x7f)	88	if (ch == 0x7f)
89	return '\b';	89	return '\b';
90	return ch;	90	return ch;
91	}	91	}
92	}	92	}
93	}	93	}
94		94
95	/** Process keyboard interrupt. */	95	/** Process keyboard interrupt. */
96	static void msim_irq_handler(irq_t *irq)	96	static void msim_irq_handler(irq_t *irq)
97	{	97	{
98	if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox))	98	if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox))
99	ipc_irq_send_notif(irq);	99	ipc_irq_send_notif(irq);
100	else {	100	else {
101	char ch = 0;	101	char ch = 0;
102		102
103	ch = ((char ) MSIM_KBD_ADDRESS);	103	ch = ((char ) MSIM_KBD_ADDRESS);
104	if (ch =='\r')	104	if (ch =='\r')
105	ch = '\n';	105	ch = '\n';
106	if (ch == 0x7f)	106	if (ch == 0x7f)
107	ch = '\b';	107	ch = '\b';
108	chardev_push_character(&console, ch);	108	chardev_push_character(&console, ch);
109	}	109	}
110	}	110	}
111		111
112	static irq_ownership_t msim_claim(void *instance)	112	static irq_ownership_t msim_claim(irq_t *irq)
113	{	113	{
114	return IRQ_ACCEPT;	114	return IRQ_ACCEPT;
115	}	115	}
116		116
117	void msim_kbd_grab(void)	117	void msim_kbd_grab(void)
118	{	118	{
119	ipl_t ipl = interrupts_disable();	119	ipl_t ipl = interrupts_disable();
120	spinlock_lock(&msim_irq.lock);	120	spinlock_lock(&msim_irq.lock);
121	msim_irq.notif_cfg.notify = false;	121	msim_irq.notif_cfg.notify = false;
122	spinlock_unlock(&msim_irq.lock);	122	spinlock_unlock(&msim_irq.lock);
123	interrupts_restore(ipl);	123	interrupts_restore(ipl);
124	}	124	}
125		125
126	void msim_kbd_release(void)	126	void msim_kbd_release(void)
127	{	127	{
128	ipl_t ipl = interrupts_disable();	128	ipl_t ipl = interrupts_disable();
129	spinlock_lock(&msim_irq.lock);	129	spinlock_lock(&msim_irq.lock);
130	if (msim_irq.notif_cfg.answerbox)	130	if (msim_irq.notif_cfg.answerbox)
131	msim_irq.notif_cfg.notify = true;	131	msim_irq.notif_cfg.notify = true;
132	spinlock_unlock(&msim_irq.lock);	132	spinlock_unlock(&msim_irq.lock);
133	interrupts_restore(ipl);	133	interrupts_restore(ipl);
134	}	134	}
135		135
136		136
137	/* Return console object representing msim console */	137	/* Return console object representing msim console */
138	void msim_console(devno_t devno)	138	void msim_console(devno_t devno)
139	{	139	{
140	chardev_initialize("msim_console", &console, &msim_ops);	140	chardev_initialize("msim_console", &console, &msim_ops);
141	stdin = &console;	141	stdin = &console;
142	stdout = &console;	142	stdout = &console;
143		143
144	irq_initialize(&msim_irq);	144	irq_initialize(&msim_irq);
145	msim_irq.devno = devno;	145	msim_irq.devno = devno;
146	msim_irq.inr = MSIM_KBD_IRQ;	146	msim_irq.inr = MSIM_KBD_IRQ;
147	msim_irq.claim = msim_claim;	147	msim_irq.claim = msim_claim;
148	msim_irq.handler = msim_irq_handler;	148	msim_irq.handler = msim_irq_handler;
149	irq_register(&msim_irq);	149	irq_register(&msim_irq);
150		150
151	cp0_unmask_int(MSIM_KBD_IRQ);	151	cp0_unmask_int(MSIM_KBD_IRQ);
152		152
153	sysinfo_set_item_val("kbd", NULL, true);	153	sysinfo_set_item_val("kbd", NULL, true);
154	sysinfo_set_item_val("kbd.devno", NULL, devno);	154	sysinfo_set_item_val("kbd.devno", NULL, devno);
155	sysinfo_set_item_val("kbd.inr", NULL, MSIM_KBD_IRQ);	155	sysinfo_set_item_val("kbd.inr", NULL, MSIM_KBD_IRQ);
156	sysinfo_set_item_val("kbd.address.virtual", NULL, MSIM_KBD_ADDRESS);	156	sysinfo_set_item_val("kbd.address.virtual", NULL, MSIM_KBD_ADDRESS);
157		157
158	sysinfo_set_item_val("fb", NULL, true);	158	sysinfo_set_item_val("fb", NULL, true);
159	sysinfo_set_item_val("fb.kind", NULL, 3);	159	sysinfo_set_item_val("fb.kind", NULL, 3);
160	sysinfo_set_item_val("fb.address.physical", NULL, KA2PA(MSIM_VIDEORAM));	160	sysinfo_set_item_val("fb.address.physical", NULL, KA2PA(MSIM_VIDEORAM));
161	}	161	}
162		162
163	/** @}	163	/** @}
164	*/	164	*/
165		165

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/mips32/src/drivers/msim.c – Rev 3908 → 3941