WebSVN – HelenOS – Diff – /trunk/kernel/arch/ia64/src/ski/ski.c


/*
 * Copyright (c) 2005 Jakub Jermar
 * 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 ia64   
 * @{
 */
/** @file
 */
 
#include <arch/ski/ski.h>
#include <console/console.h>
#include <console/chardev.h>
#include <arch/interrupt.h>
#include <sysinfo/sysinfo.h>
#include <arch/types.h>
 
#include <ddi/device.h>
#include <ddi/irq.h>
#include <ipc/irq.h>
#include <proc/thread.h>
#include <synch/spinlock.h>
#include <arch/asm.h>
 
#define SKI_KBD_INR 0
 
static irq_t ski_kbd_irq;
static devno_t ski_kbd_devno;
 
chardev_t ski_console;
chardev_t ski_uconsole;
 
static bool kbd_disabled;
 
static void ski_putchar(chardev_t *d, const char ch);
static int32_t ski_getchar(void);
 
/** Display character on debug console
 *
 * Use SSC (Simulator System Call) to
 * display character on debug console.
 *
 * @param d Character device.
 * @param ch Character to be printed.
 */
void ski_putchar(chardev_t *d, const char ch)
{
    asm volatile (
        "mov r15 = %0\n"
        "mov r32 = %1\n"    /* r32 is in0 */
        "break 0x80000\n"   /* modifies r8 */
        :
        : "i" (SKI_PUTCHAR), "r" (ch)
        : "r15", "in0", "r8"
    );
   
    if (ch == '\n')
        ski_putchar(d, '\r');
}
 
/** Ask debug console if a key was pressed.
 *
 * Use SSC (Simulator System Call) to
 * get character from debug console.
 *
 * This call is non-blocking.
 *
 * @return ASCII code of pressed key or 0 if no key pressed.
 */
int32_t ski_getchar(void)
{
    uint64_t ch;
   
    asm volatile (
        "mov r15 = %1\n"
        "break 0x80000;;\n" /* modifies r8 */
        "mov %0 = r8;;\n"      
 
        : "=r" (ch)
        : "i" (SKI_GETCHAR)
        : "r15", "r8"
    );
 
    return (int32_t) ch;
}
 
/**
 * This is a blocking wrapper for ski_getchar().
 * To be used when the kernel crashes.
 */
static char ski_getchar_blocking(chardev_t *d)
{
    int ch;
 
    while(!(ch = ski_getchar()))
        ;
    if(ch == '\r')
        ch = '\n';
    return (char) ch;
}
 
/** Ask keyboard if a key was pressed. */
static void poll_keyboard(void)
{
    char ch;
    static char last;
    ipl_t ipl;
 
    ipl = interrupts_disable();
 
    if (kbd_disabled) {
        interrupts_restore(ipl);
        return;
    }
       
    spinlock_lock(&ski_kbd_irq.lock);
 
    ch = ski_getchar();
    if(ch == '\r')
        ch = '\n';
    if (ch) {
        if (ski_kbd_irq.notif_cfg.notify && ski_kbd_irq.notif_cfg.answerbox) {
            chardev_push_character(&ski_uconsole, ch);
            ipc_irq_send_notif(&ski_kbd_irq);
        } else {
            chardev_push_character(&ski_console, ch);
        }  
        last = ch;
        spinlock_unlock(&ski_kbd_irq.lock);
        interrupts_restore(ipl);
        return;
    }
 
    if (last) {
        if (ski_kbd_irq.notif_cfg.notify && ski_kbd_irq.notif_cfg.answerbox) {
            chardev_push_character(&ski_uconsole, 0);
            ipc_irq_send_notif(&ski_kbd_irq);
        }
        last = 0;
    }
 
    spinlock_unlock(&ski_kbd_irq.lock);
    interrupts_restore(ipl);
}
 
/* Called from getc(). */
static void ski_kbd_enable(chardev_t *d)
{
    kbd_disabled = false;
}
 
/* Called from getc(). */
static void ski_kbd_disable(chardev_t *d)
{
    kbd_disabled = true;   
}
 
/** Decline to service hardware IRQ.
 *
 * This is only a virtual IRQ, so always decline.
 *
 * @return Always IRQ_DECLINE.
 */
static irq_ownership_t ski_kbd_claim(void)
{
    return IRQ_DECLINE;
}
 
static chardev_operations_t ski_ops = {
    .resume = ski_kbd_enable,
    .suspend = ski_kbd_disable,
    .write = ski_putchar,
    .read = ski_getchar_blocking
};
 
/** Initialize debug console
 *
 * Issue SSC (Simulator System Call) to
 * to open debug console.
 */
void ski_init_console(void)
{
    asm volatile (
        "mov r15 = %0\n"
        "break 0x80000\n"
        :
        : "i" (SKI_INIT_CONSOLE)
        : "r15", "r8"
    );
 
    chardev_initialize("ski_console", &ski_console, &ski_ops);
    chardev_initialize("ski_uconsole", &ski_uconsole, &ski_ops);
    stdin = &ski_console;
    stdout = &ski_console;
 
    ski_kbd_devno = device_assign_devno();
   
    irq_initialize(&ski_kbd_irq);
    ski_kbd_irq.inr = SKI_KBD_INR;
    ski_kbd_irq.devno = ski_kbd_devno;
    ski_kbd_irq.claim = ski_kbd_claim;
    irq_register(&ski_kbd_irq);
 
    sysinfo_set_item_val("kbd", NULL, true);
    sysinfo_set_item_val("kbd.inr", NULL, SKI_KBD_INR);
    sysinfo_set_item_val("kbd.devno", NULL, ski_kbd_devno);
}
 
void ski_kbd_grab(void)
{
    ipl_t ipl = interrupts_disable();
    spinlock_lock(&ski_kbd_irq.lock);
    ski_kbd_irq.notif_cfg.notify = false;
    spinlock_unlock(&ski_kbd_irq.lock);
    interrupts_restore(ipl);
}
 
void ski_kbd_release(void)
{
    ipl_t ipl = interrupts_disable();
    spinlock_lock(&ski_kbd_irq.lock);
    if (ski_kbd_irq.notif_cfg.answerbox)
        ski_kbd_irq.notif_cfg.notify = true;
    spinlock_unlock(&ski_kbd_irq.lock);
    interrupts_restore(ipl);
}
 
 
#define POLL_INTERVAL       50000       /* 50 ms */
 
/** Kernel thread for polling keyboard. */
void kkbdpoll(void *arg)
{
    while (1) {
        poll_keyboard();
        thread_usleep(POLL_INTERVAL);
    }
}
 
/** @}
 */
 

Rev 2082	Rev 2089
1	/*	1	/*
2	* Copyright (c) 2005 Jakub Jermar	2	* Copyright (c) 2005 Jakub Jermar
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 ia64	29	/** @addtogroup ia64
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch/ski/ski.h>	35	#include <arch/ski/ski.h>
36	#include <console/console.h>	36	#include <console/console.h>
37	#include <console/chardev.h>	37	#include <console/chardev.h>
38	#include <arch/interrupt.h>	38	#include <arch/interrupt.h>
39	#include <sysinfo/sysinfo.h>	39	#include <sysinfo/sysinfo.h>
40	#include <arch/types.h>	40	#include <arch/types.h>
41	#include <typedefs.h>	-
42	#include <ddi/device.h>	41	#include <ddi/device.h>
43	#include <ddi/irq.h>	42	#include <ddi/irq.h>
44	#include <ipc/irq.h>	43	#include <ipc/irq.h>
45	#include <proc/thread.h>	44	#include <proc/thread.h>
46	#include <synch/spinlock.h>	45	#include <synch/spinlock.h>
47	#include <arch/asm.h>	46	#include <arch/asm.h>
48		47
49	#define SKI_KBD_INR 0	48	#define SKI_KBD_INR 0
50		49
51	static irq_t ski_kbd_irq;	50	static irq_t ski_kbd_irq;
52	static devno_t ski_kbd_devno;	51	static devno_t ski_kbd_devno;
53		52
54	chardev_t ski_console;	53	chardev_t ski_console;
55	chardev_t ski_uconsole;	54	chardev_t ski_uconsole;
56		55
57	static bool kbd_disabled;	56	static bool kbd_disabled;
58		57
59	static void ski_putchar(chardev_t *d, const char ch);	58	static void ski_putchar(chardev_t *d, const char ch);
60	static int32_t ski_getchar(void);	59	static int32_t ski_getchar(void);
61		60
62	/** Display character on debug console	61	/** Display character on debug console
63	*	62	*
64	* Use SSC (Simulator System Call) to	63	* Use SSC (Simulator System Call) to
65	* display character on debug console.	64	* display character on debug console.
66	*	65	*
67	* @param d Character device.	66	* @param d Character device.
68	* @param ch Character to be printed.	67	* @param ch Character to be printed.
69	*/	68	*/
70	void ski_putchar(chardev_t *d, const char ch)	69	void ski_putchar(chardev_t *d, const char ch)
71	{	70	{
72	asm volatile (	71	asm volatile (
73	"mov r15 = %0\n"	72	"mov r15 = %0\n"
74	"mov r32 = %1\n" /* r32 is in0 */	73	"mov r32 = %1\n" /* r32 is in0 */
75	"break 0x80000\n" /* modifies r8 */	74	"break 0x80000\n" /* modifies r8 */
76	:	75	:
77	: "i" (SKI_PUTCHAR), "r" (ch)	76	: "i" (SKI_PUTCHAR), "r" (ch)
78	: "r15", "in0", "r8"	77	: "r15", "in0", "r8"
79	);	78	);
80		79
81	if (ch == '\n')	80	if (ch == '\n')
82	ski_putchar(d, '\r');	81	ski_putchar(d, '\r');
83	}	82	}
84		83
85	/** Ask debug console if a key was pressed.	84	/** Ask debug console if a key was pressed.
86	*	85	*
87	* Use SSC (Simulator System Call) to	86	* Use SSC (Simulator System Call) to
88	* get character from debug console.	87	* get character from debug console.
89	*	88	*
90	* This call is non-blocking.	89	* This call is non-blocking.
91	*	90	*
92	* @return ASCII code of pressed key or 0 if no key pressed.	91	* @return ASCII code of pressed key or 0 if no key pressed.
93	*/	92	*/
94	int32_t ski_getchar(void)	93	int32_t ski_getchar(void)
95	{	94	{
96	uint64_t ch;	95	uint64_t ch;
97		96
98	asm volatile (	97	asm volatile (
99	"mov r15 = %1\n"	98	"mov r15 = %1\n"
100	"break 0x80000;;\n" /* modifies r8 */	99	"break 0x80000;;\n" /* modifies r8 */
101	"mov %0 = r8;;\n"	100	"mov %0 = r8;;\n"
102		101
103	: "=r" (ch)	102	: "=r" (ch)
104	: "i" (SKI_GETCHAR)	103	: "i" (SKI_GETCHAR)
105	: "r15", "r8"	104	: "r15", "r8"
106	);	105	);
107		106
108	return (int32_t) ch;	107	return (int32_t) ch;
109	}	108	}
110		109
111	/**	110	/**
112	* This is a blocking wrapper for ski_getchar().	111	* This is a blocking wrapper for ski_getchar().
113	* To be used when the kernel crashes.	112	* To be used when the kernel crashes.
114	*/	113	*/
115	static char ski_getchar_blocking(chardev_t *d)	114	static char ski_getchar_blocking(chardev_t *d)
116	{	115	{
117	int ch;	116	int ch;
118		117
119	while(!(ch = ski_getchar()))	118	while(!(ch = ski_getchar()))
120	;	119	;
121	if(ch == '\r')	120	if(ch == '\r')
122	ch = '\n';	121	ch = '\n';
123	return (char) ch;	122	return (char) ch;
124	}	123	}
125		124
126	/** Ask keyboard if a key was pressed. */	125	/** Ask keyboard if a key was pressed. */
127	static void poll_keyboard(void)	126	static void poll_keyboard(void)
128	{	127	{
129	char ch;	128	char ch;
130	static char last;	129	static char last;
131	ipl_t ipl;	130	ipl_t ipl;
132		131
133	ipl = interrupts_disable();	132	ipl = interrupts_disable();
134		133
135	if (kbd_disabled) {	134	if (kbd_disabled) {
136	interrupts_restore(ipl);	135	interrupts_restore(ipl);
137	return;	136	return;
138	}	137	}
139		138
140	spinlock_lock(&ski_kbd_irq.lock);	139	spinlock_lock(&ski_kbd_irq.lock);
141		140
142	ch = ski_getchar();	141	ch = ski_getchar();
143	if(ch == '\r')	142	if(ch == '\r')
144	ch = '\n';	143	ch = '\n';
145	if (ch) {	144	if (ch) {
146	if (ski_kbd_irq.notif_cfg.notify && ski_kbd_irq.notif_cfg.answerbox) {	145	if (ski_kbd_irq.notif_cfg.notify && ski_kbd_irq.notif_cfg.answerbox) {
147	chardev_push_character(&ski_uconsole, ch);	146	chardev_push_character(&ski_uconsole, ch);
148	ipc_irq_send_notif(&ski_kbd_irq);	147	ipc_irq_send_notif(&ski_kbd_irq);
149	} else {	148	} else {
150	chardev_push_character(&ski_console, ch);	149	chardev_push_character(&ski_console, ch);
151	}	150	}
152	last = ch;	151	last = ch;
153	spinlock_unlock(&ski_kbd_irq.lock);	152	spinlock_unlock(&ski_kbd_irq.lock);
154	interrupts_restore(ipl);	153	interrupts_restore(ipl);
155	return;	154	return;
156	}	155	}
157		156
158	if (last) {	157	if (last) {
159	if (ski_kbd_irq.notif_cfg.notify && ski_kbd_irq.notif_cfg.answerbox) {	158	if (ski_kbd_irq.notif_cfg.notify && ski_kbd_irq.notif_cfg.answerbox) {
160	chardev_push_character(&ski_uconsole, 0);	159	chardev_push_character(&ski_uconsole, 0);
161	ipc_irq_send_notif(&ski_kbd_irq);	160	ipc_irq_send_notif(&ski_kbd_irq);
162	}	161	}
163	last = 0;	162	last = 0;
164	}	163	}
165		164
166	spinlock_unlock(&ski_kbd_irq.lock);	165	spinlock_unlock(&ski_kbd_irq.lock);
167	interrupts_restore(ipl);	166	interrupts_restore(ipl);
168	}	167	}
169		168
170	/* Called from getc(). */	169	/* Called from getc(). */
171	static void ski_kbd_enable(chardev_t *d)	170	static void ski_kbd_enable(chardev_t *d)
172	{	171	{
173	kbd_disabled = false;	172	kbd_disabled = false;
174	}	173	}
175		174
176	/* Called from getc(). */	175	/* Called from getc(). */
177	static void ski_kbd_disable(chardev_t *d)	176	static void ski_kbd_disable(chardev_t *d)
178	{	177	{
179	kbd_disabled = true;	178	kbd_disabled = true;
180	}	179	}
181		180
182	/** Decline to service hardware IRQ.	181	/** Decline to service hardware IRQ.
183	*	182	*
184	* This is only a virtual IRQ, so always decline.	183	* This is only a virtual IRQ, so always decline.
185	*	184	*
186	* @return Always IRQ_DECLINE.	185	* @return Always IRQ_DECLINE.
187	*/	186	*/
188	static irq_ownership_t ski_kbd_claim(void)	187	static irq_ownership_t ski_kbd_claim(void)
189	{	188	{
190	return IRQ_DECLINE;	189	return IRQ_DECLINE;
191	}	190	}
192		191
193	static chardev_operations_t ski_ops = {	192	static chardev_operations_t ski_ops = {
194	.resume = ski_kbd_enable,	193	.resume = ski_kbd_enable,
195	.suspend = ski_kbd_disable,	194	.suspend = ski_kbd_disable,
196	.write = ski_putchar,	195	.write = ski_putchar,
197	.read = ski_getchar_blocking	196	.read = ski_getchar_blocking
198	};	197	};
199		198
200	/** Initialize debug console	199	/** Initialize debug console
201	*	200	*
202	* Issue SSC (Simulator System Call) to	201	* Issue SSC (Simulator System Call) to
203	* to open debug console.	202	* to open debug console.
204	*/	203	*/
205	void ski_init_console(void)	204	void ski_init_console(void)
206	{	205	{
207	asm volatile (	206	asm volatile (
208	"mov r15 = %0\n"	207	"mov r15 = %0\n"
209	"break 0x80000\n"	208	"break 0x80000\n"
210	:	209	:
211	: "i" (SKI_INIT_CONSOLE)	210	: "i" (SKI_INIT_CONSOLE)
212	: "r15", "r8"	211	: "r15", "r8"
213	);	212	);
214		213
215	chardev_initialize("ski_console", &ski_console, &ski_ops);	214	chardev_initialize("ski_console", &ski_console, &ski_ops);
216	chardev_initialize("ski_uconsole", &ski_uconsole, &ski_ops);	215	chardev_initialize("ski_uconsole", &ski_uconsole, &ski_ops);
217	stdin = &ski_console;	216	stdin = &ski_console;
218	stdout = &ski_console;	217	stdout = &ski_console;
219		218
220	ski_kbd_devno = device_assign_devno();	219	ski_kbd_devno = device_assign_devno();
221		220
222	irq_initialize(&ski_kbd_irq);	221	irq_initialize(&ski_kbd_irq);
223	ski_kbd_irq.inr = SKI_KBD_INR;	222	ski_kbd_irq.inr = SKI_KBD_INR;
224	ski_kbd_irq.devno = ski_kbd_devno;	223	ski_kbd_irq.devno = ski_kbd_devno;
225	ski_kbd_irq.claim = ski_kbd_claim;	224	ski_kbd_irq.claim = ski_kbd_claim;
226	irq_register(&ski_kbd_irq);	225	irq_register(&ski_kbd_irq);
227		226
228	sysinfo_set_item_val("kbd", NULL, true);	227	sysinfo_set_item_val("kbd", NULL, true);
229	sysinfo_set_item_val("kbd.inr", NULL, SKI_KBD_INR);	228	sysinfo_set_item_val("kbd.inr", NULL, SKI_KBD_INR);
230	sysinfo_set_item_val("kbd.devno", NULL, ski_kbd_devno);	229	sysinfo_set_item_val("kbd.devno", NULL, ski_kbd_devno);
231	}	230	}
232		231
233	void ski_kbd_grab(void)	232	void ski_kbd_grab(void)
234	{	233	{
235	ipl_t ipl = interrupts_disable();	234	ipl_t ipl = interrupts_disable();
236	spinlock_lock(&ski_kbd_irq.lock);	235	spinlock_lock(&ski_kbd_irq.lock);
237	ski_kbd_irq.notif_cfg.notify = false;	236	ski_kbd_irq.notif_cfg.notify = false;
238	spinlock_unlock(&ski_kbd_irq.lock);	237	spinlock_unlock(&ski_kbd_irq.lock);
239	interrupts_restore(ipl);	238	interrupts_restore(ipl);
240	}	239	}
241		240
242	void ski_kbd_release(void)	241	void ski_kbd_release(void)
243	{	242	{
244	ipl_t ipl = interrupts_disable();	243	ipl_t ipl = interrupts_disable();
245	spinlock_lock(&ski_kbd_irq.lock);	244	spinlock_lock(&ski_kbd_irq.lock);
246	if (ski_kbd_irq.notif_cfg.answerbox)	245	if (ski_kbd_irq.notif_cfg.answerbox)
247	ski_kbd_irq.notif_cfg.notify = true;	246	ski_kbd_irq.notif_cfg.notify = true;
248	spinlock_unlock(&ski_kbd_irq.lock);	247	spinlock_unlock(&ski_kbd_irq.lock);
249	interrupts_restore(ipl);	248	interrupts_restore(ipl);
250	}	249	}
251		250
252		251
253	#define POLL_INTERVAL 50000 /* 50 ms */	252	#define POLL_INTERVAL 50000 /* 50 ms */
254		253
255	/** Kernel thread for polling keyboard. */	254	/** Kernel thread for polling keyboard. */
256	void kkbdpoll(void *arg)	255	void kkbdpoll(void *arg)
257	{	256	{
258	while (1) {	257	while (1) {
259	poll_keyboard();	258	poll_keyboard();
260	thread_usleep(POLL_INTERVAL);	259	thread_usleep(POLL_INTERVAL);
261	}	260	}
262	}	261	}
263		262
264	/** @}	263	/** @}
265	*/	264	*/
266		265

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/ia64/src/ski/ski.c – Rev 2082 → 2089