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>
#include <arch/drivers/kbd.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;
 
/** 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.
 */
static void ski_putchar(chardev_t *d, const char ch, bool silent)
{
    if (!silent) {
        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', false);
    }
}
 
/** 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.
 */
static 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);
    sysinfo_set_item_val("kbd.type", NULL, KBD_SKI);
 
    sysinfo_set_item_val("fb", NULL, false);
}
 
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 3853	Rev 3854
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 <ddi/device.h>	41	#include <ddi/device.h>
42	#include <ddi/irq.h>	42	#include <ddi/irq.h>
43	#include <ipc/irq.h>	43	#include <ipc/irq.h>
44	#include <proc/thread.h>	44	#include <proc/thread.h>
45	#include <synch/spinlock.h>	45	#include <synch/spinlock.h>
46	#include <arch/asm.h>	46	#include <arch/asm.h>
47	#include <arch/drivers/kbd.h>	47	#include <arch/drivers/kbd.h>
48		48
49	#define SKI_KBD_INR 0	49	#define SKI_KBD_INR 0
50		50
51	static irq_t ski_kbd_irq;	51	static irq_t ski_kbd_irq;
52	static devno_t ski_kbd_devno;	52	static devno_t ski_kbd_devno;
53		53
54	chardev_t ski_console;	54	chardev_t ski_console;
55	chardev_t ski_uconsole;	55	chardev_t ski_uconsole;
56		56
57	static bool kbd_disabled;	57	static bool kbd_disabled;
58		58
59	/** Display character on debug console	59	/** Display character on debug console
60	*	60	*
61	* Use SSC (Simulator System Call) to	61	* Use SSC (Simulator System Call) to
62	* display character on debug console.	62	* display character on debug console.
63	*	63	*
64	* @param d Character device.	64	* @param d Character device.
65	* @param ch Character to be printed.	65	* @param ch Character to be printed.
66	*/	66	*/
67	static void ski_putchar(chardev_t *d, const char ch, bool silent)	67	static void ski_putchar(chardev_t *d, const char ch, bool silent)
68	{	68	{
69	if (!silent) {	69	if (!silent) {
70	asm volatile (	70	asm volatile (
71	"mov r15 = %0\n"	71	"mov r15 = %0\n"
72	"mov r32 = %1\n" /* r32 is in0 */	72	"mov r32 = %1\n" /* r32 is in0 */
73	"break 0x80000\n" /* modifies r8 */	73	"break 0x80000\n" /* modifies r8 */
74	:	74	:
75	: "i" (SKI_PUTCHAR), "r" (ch)	75	: "i" (SKI_PUTCHAR), "r" (ch)
76	: "r15", "in0", "r8"	76	: "r15", "in0", "r8"
77	);	77	);
78		78
79	if (ch == '\n')	79	if (ch == '\n')
80	ski_putchar(d, '\r', silent);	80	ski_putchar(d, '\r', false);
81	}	81	}
82	}	82	}
83		83
84	/** Ask debug console if a key was pressed.	84	/** Ask debug console if a key was pressed.
85	*	85	*
86	* Use SSC (Simulator System Call) to	86	* Use SSC (Simulator System Call) to
87	* get character from debug console.	87	* get character from debug console.
88	*	88	*
89	* This call is non-blocking.	89	* This call is non-blocking.
90	*	90	*
91	* @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.
92	*/	92	*/
93	static int32_t ski_getchar(void)	93	static int32_t ski_getchar(void)
94	{	94	{
95	uint64_t ch;	95	uint64_t ch;
96		96
97	asm volatile (	97	asm volatile (
98	"mov r15 = %1\n"	98	"mov r15 = %1\n"
99	"break 0x80000;;\n" /* modifies r8 */	99	"break 0x80000;;\n" /* modifies r8 */
100	"mov %0 = r8;;\n"	100	"mov %0 = r8;;\n"
101		101
102	: "=r" (ch)	102	: "=r" (ch)
103	: "i" (SKI_GETCHAR)	103	: "i" (SKI_GETCHAR)
104	: "r15", "r8"	104	: "r15", "r8"
105	);	105	);
106		106
107	return (int32_t) ch;	107	return (int32_t) ch;
108	}	108	}
109		109
110	/**	110	/**
111	* This is a blocking wrapper for ski_getchar().	111	* This is a blocking wrapper for ski_getchar().
112	* To be used when the kernel crashes.	112	* To be used when the kernel crashes.
113	*/	113	*/
114	static char ski_getchar_blocking(chardev_t *d)	114	static char ski_getchar_blocking(chardev_t *d)
115	{	115	{
116	int ch;	116	int ch;
117		117
118	while(!(ch = ski_getchar()))	118	while(!(ch = ski_getchar()))
119	;	119	;
120	if (ch == '\r')	120	if (ch == '\r')
121	ch = '\n';	121	ch = '\n';
122	return (char) ch;	122	return (char) ch;
123	}	123	}
124		124
125	/** Ask keyboard if a key was pressed. */	125	/** Ask keyboard if a key was pressed. */
126	static void poll_keyboard(void)	126	static void poll_keyboard(void)
127	{	127	{
128	char ch;	128	char ch;
129	static char last;	129	static char last;
130	ipl_t ipl;	130	ipl_t ipl;
131		131
132	ipl = interrupts_disable();	132	ipl = interrupts_disable();
133		133
134	if (kbd_disabled) {	134	if (kbd_disabled) {
135	interrupts_restore(ipl);	135	interrupts_restore(ipl);
136	return;	136	return;
137	}	137	}
138		138
139	spinlock_lock(&ski_kbd_irq.lock);	139	spinlock_lock(&ski_kbd_irq.lock);
140		140
141	ch = ski_getchar();	141	ch = ski_getchar();
142	if(ch == '\r')	142	if(ch == '\r')
143	ch = '\n';	143	ch = '\n';
144	if (ch) {	144	if (ch) {
145	if (ski_kbd_irq.notif_cfg.notify &&	145	if (ski_kbd_irq.notif_cfg.notify &&
146	ski_kbd_irq.notif_cfg.answerbox) {	146	ski_kbd_irq.notif_cfg.answerbox) {
147	chardev_push_character(&ski_uconsole, ch);	147	chardev_push_character(&ski_uconsole, ch);
148	ipc_irq_send_notif(&ski_kbd_irq);	148	ipc_irq_send_notif(&ski_kbd_irq);
149	} else {	149	} else {
150	chardev_push_character(&ski_console, ch);	150	chardev_push_character(&ski_console, ch);
151	}	151	}
152	last = ch;	152	last = ch;
153	spinlock_unlock(&ski_kbd_irq.lock);	153	spinlock_unlock(&ski_kbd_irq.lock);
154	interrupts_restore(ipl);	154	interrupts_restore(ipl);
155	return;	155	return;
156	}	156	}
157		157
158	if (last) {	158	if (last) {
159	if (ski_kbd_irq.notif_cfg.notify &&	159	if (ski_kbd_irq.notif_cfg.notify &&
160	ski_kbd_irq.notif_cfg.answerbox) {	160	ski_kbd_irq.notif_cfg.answerbox) {
161	chardev_push_character(&ski_uconsole, 0);	161	chardev_push_character(&ski_uconsole, 0);
162	ipc_irq_send_notif(&ski_kbd_irq);	162	ipc_irq_send_notif(&ski_kbd_irq);
163	}	163	}
164	last = 0;	164	last = 0;
165	}	165	}
166		166
167	spinlock_unlock(&ski_kbd_irq.lock);	167	spinlock_unlock(&ski_kbd_irq.lock);
168	interrupts_restore(ipl);	168	interrupts_restore(ipl);
169	}	169	}
170		170
171	/* Called from getc(). */	171	/* Called from getc(). */
172	static void ski_kbd_enable(chardev_t *d)	172	static void ski_kbd_enable(chardev_t *d)
173	{	173	{
174	kbd_disabled = false;	174	kbd_disabled = false;
175	}	175	}
176		176
177	/* Called from getc(). */	177	/* Called from getc(). */
178	static void ski_kbd_disable(chardev_t *d)	178	static void ski_kbd_disable(chardev_t *d)
179	{	179	{
180	kbd_disabled = true;	180	kbd_disabled = true;
181	}	181	}
182		182
183	/** Decline to service hardware IRQ.	183	/** Decline to service hardware IRQ.
184	*	184	*
185	* This is only a virtual IRQ, so always decline.	185	* This is only a virtual IRQ, so always decline.
186	*	186	*
187	* @return Always IRQ_DECLINE.	187	* @return Always IRQ_DECLINE.
188	*/	188	*/
189	static irq_ownership_t ski_kbd_claim(void)	189	static irq_ownership_t ski_kbd_claim(void)
190	{	190	{
191	return IRQ_DECLINE;	191	return IRQ_DECLINE;
192	}	192	}
193		193
194	static chardev_operations_t ski_ops = {	194	static chardev_operations_t ski_ops = {
195	.resume = ski_kbd_enable,	195	.resume = ski_kbd_enable,
196	.suspend = ski_kbd_disable,	196	.suspend = ski_kbd_disable,
197	.write = ski_putchar,	197	.write = ski_putchar,
198	.read = ski_getchar_blocking	198	.read = ski_getchar_blocking
199	};	199	};
200		200
201	/** Initialize debug console	201	/** Initialize debug console
202	*	202	*
203	* Issue SSC (Simulator System Call) to	203	* Issue SSC (Simulator System Call) to
204	* to open debug console.	204	* to open debug console.
205	*/	205	*/
206	void ski_init_console(void)	206	void ski_init_console(void)
207	{	207	{
208	asm volatile (	208	asm volatile (
209	"mov r15 = %0\n"	209	"mov r15 = %0\n"
210	"break 0x80000\n"	210	"break 0x80000\n"
211	:	211	:
212	: "i" (SKI_INIT_CONSOLE)	212	: "i" (SKI_INIT_CONSOLE)
213	: "r15", "r8"	213	: "r15", "r8"
214	);	214	);
215		215
216	chardev_initialize("ski_console", &ski_console, &ski_ops);	216	chardev_initialize("ski_console", &ski_console, &ski_ops);
217	chardev_initialize("ski_uconsole", &ski_uconsole, &ski_ops);	217	chardev_initialize("ski_uconsole", &ski_uconsole, &ski_ops);
218	stdin = &ski_console;	218	stdin = &ski_console;
219	stdout = &ski_console;	219	stdout = &ski_console;
220		220
221	ski_kbd_devno = device_assign_devno();	221	ski_kbd_devno = device_assign_devno();
222		222
223	irq_initialize(&ski_kbd_irq);	223	irq_initialize(&ski_kbd_irq);
224	ski_kbd_irq.inr = SKI_KBD_INR;	224	ski_kbd_irq.inr = SKI_KBD_INR;
225	ski_kbd_irq.devno = ski_kbd_devno;	225	ski_kbd_irq.devno = ski_kbd_devno;
226	ski_kbd_irq.claim = ski_kbd_claim;	226	ski_kbd_irq.claim = ski_kbd_claim;
227	irq_register(&ski_kbd_irq);	227	irq_register(&ski_kbd_irq);
228		228
229	sysinfo_set_item_val("kbd", NULL, true);	229	sysinfo_set_item_val("kbd", NULL, true);
230	sysinfo_set_item_val("kbd.inr", NULL, SKI_KBD_INR);	230	sysinfo_set_item_val("kbd.inr", NULL, SKI_KBD_INR);
231	sysinfo_set_item_val("kbd.devno", NULL, ski_kbd_devno);	231	sysinfo_set_item_val("kbd.devno", NULL, ski_kbd_devno);
232	sysinfo_set_item_val("kbd.type", NULL, KBD_SKI);	232	sysinfo_set_item_val("kbd.type", NULL, KBD_SKI);
233		233
234	sysinfo_set_item_val("fb", NULL, false);	234	sysinfo_set_item_val("fb", NULL, false);
235	}	235	}
236		236
237	void ski_kbd_grab(void)	237	void ski_kbd_grab(void)
238	{	238	{
239	ipl_t ipl = interrupts_disable();	239	ipl_t ipl = interrupts_disable();
240	spinlock_lock(&ski_kbd_irq.lock);	240	spinlock_lock(&ski_kbd_irq.lock);
241	ski_kbd_irq.notif_cfg.notify = false;	241	ski_kbd_irq.notif_cfg.notify = false;
242	spinlock_unlock(&ski_kbd_irq.lock);	242	spinlock_unlock(&ski_kbd_irq.lock);
243	interrupts_restore(ipl);	243	interrupts_restore(ipl);
244	}	244	}
245		245
246	void ski_kbd_release(void)	246	void ski_kbd_release(void)
247	{	247	{
248	ipl_t ipl = interrupts_disable();	248	ipl_t ipl = interrupts_disable();
249	spinlock_lock(&ski_kbd_irq.lock);	249	spinlock_lock(&ski_kbd_irq.lock);
250	if (ski_kbd_irq.notif_cfg.answerbox)	250	if (ski_kbd_irq.notif_cfg.answerbox)
251	ski_kbd_irq.notif_cfg.notify = true;	251	ski_kbd_irq.notif_cfg.notify = true;
252	spinlock_unlock(&ski_kbd_irq.lock);	252	spinlock_unlock(&ski_kbd_irq.lock);
253	interrupts_restore(ipl);	253	interrupts_restore(ipl);
254	}	254	}
255		255
256		256
257	#define POLL_INTERVAL 50000 /* 50 ms */	257	#define POLL_INTERVAL 50000 /* 50 ms */
258		258
259	/** Kernel thread for polling keyboard. */	259	/** Kernel thread for polling keyboard. */
260	void kkbdpoll(void *arg)	260	void kkbdpoll(void *arg)
261	{	261	{
262	while (1) {	262	while (1) {
263	poll_keyboard();	263	poll_keyboard();
264	thread_usleep(POLL_INTERVAL);	264	thread_usleep(POLL_INTERVAL);
265	}	265	}
266	}	266	}
267		267
268	/** @}	268	/** @}
269	*/	269	*/
270		270

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/ia64/src/ski/ski.c – Rev 3853 → 3854