WebSVN – HelenOS – Diff – /trunk/kernel/arch/ppc32/src/drivers/cuda.c


/*
 * Copyright (c) 2006 Martin Decky
 * 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 ppc32  
 * @{
 */
/** @file
 */
 
#include <arch/drivers/cuda.h>
#include <ipc/irq.h>
#include <arch/asm.h>
#include <console/console.h>
#include <console/chardev.h>
#include <arch/drivers/pic.h>
#include <sysinfo/sysinfo.h>
#include <interrupt.h>
#include <stdarg.h>
 
#define CUDA_IRQ 10
#define SPECIAL     '?'
 
#define PACKET_ADB  0x00
#define PACKET_CUDA 0x01
 
#define CUDA_POWERDOWN  0x0a
#define CUDA_RESET      0x11
 
#define RS 0x200
#define B (0 * RS)
#define A (1 * RS)
#define SR (10 * RS)
#define ACR (11 * RS)
 
#define SR_OUT 0x10
#define TACK 0x10
#define TIP 0x20
 
 
static volatile uint8_t *cuda = NULL;
static irq_t cuda_irq;      /**< Cuda's IRQ. */
 
static char lchars[0x80] = {
    'a',
    's',
    'd',
    'f',
    'h',
    'g',
    'z',
    'x',
    'c',
    'v',
    SPECIAL,
    'b',
    'q',
    'w',
    'e',
    'r',
    'y',
    't',
    '1',
    '2',
    '3',
    '4',
    '6',
    '5',
    '=',
    '9',
    '7',
    '-',
    '8',
    '0',
    ']',
    'o',
    'u',
    '[',
    'i',
    'p',
    '\n',    /* Enter */
    'l',
    'j',
    '\'',
    'k',
    ';',
    '\\',
    ',',
    '/',
    'n',
    'm',
    '.',
    '\t',    /* Tab */
    ' ',
    '`',
    '\b',    /* Backspace */
    SPECIAL,
    SPECIAL, /* Escape */
    SPECIAL, /* Ctrl */
    SPECIAL, /* Alt */
    SPECIAL, /* Shift */
    SPECIAL, /* Caps-Lock */
    SPECIAL, /* RAlt */
    SPECIAL, /* Left */
    SPECIAL, /* Right */
    SPECIAL, /* Down */
    SPECIAL, /* Up */
    SPECIAL,
    SPECIAL,
    '.',     /* Keypad . */
    SPECIAL,
    '*',     /* Keypad * */
    SPECIAL,
    '+',     /* Keypad + */
    SPECIAL,
    SPECIAL, /* NumLock */
    SPECIAL,
    SPECIAL,
    SPECIAL,
    '/',     /* Keypad / */
    '\n',    /* Keypad Enter */
    SPECIAL,
    '-',     /* Keypad - */
    SPECIAL,
    SPECIAL,
    SPECIAL,
    '0',     /* Keypad 0 */
    '1',     /* Keypad 1 */
    '2',     /* Keypad 2 */
    '3',     /* Keypad 3 */
    '4',     /* Keypad 4 */
    '5',     /* Keypad 5 */
    '6',     /* Keypad 6 */
    '7',     /* Keypad 7 */
    SPECIAL,
    '8',     /* Keypad 8 */
    '9',     /* Keypad 9 */
    SPECIAL,
    SPECIAL,
    SPECIAL,
    SPECIAL, /* F5 */
    SPECIAL, /* F6 */
    SPECIAL, /* F7 */
    SPECIAL, /* F3 */
    SPECIAL, /* F8 */
    SPECIAL, /* F9 */
    SPECIAL,
    SPECIAL, /* F11 */
    SPECIAL,
    SPECIAL, /* F13 */
    SPECIAL,
    SPECIAL, /* ScrollLock */
    SPECIAL,
    SPECIAL, /* F10 */
    SPECIAL,
    SPECIAL, /* F12 */
    SPECIAL,
    SPECIAL, /* Pause */
    SPECIAL, /* Insert */
    SPECIAL, /* Home */
    SPECIAL, /* PageUp */
    SPECIAL, /* Delete */
    SPECIAL, /* F4 */
    SPECIAL, /* End */
    SPECIAL, /* F2 */
    SPECIAL, /* PageDown */
    SPECIAL  /* F1 */
};
 
 
 
 
 
static void receive_packet(uint8_t *kind, index_t count, uint8_t data[])
{
    cuda[B] = cuda[B] & ~TIP;
    *kind = cuda[SR];
   
    index_t i;
    for (i = 0; i < count; i++)
        data[i] = cuda[SR];
   
    cuda[B] = cuda[B] | TIP;
}
 
 
/* Called from getc(). */
static void cuda_resume(chardev_t *d)
{
}
 
 
/* Called from getc(). */
static void cuda_suspend(chardev_t *d)
{
}
 
 
static char key_read(chardev_t *d)
{
    char ch;
   
    ch = 0;
    return ch;
}
 
 
static chardev_t kbrd;
static chardev_operations_t ops = {
    .suspend = cuda_suspend,
    .resume = cuda_resume,
    .read = key_read
};
 
 
int cuda_get_scancode(void)
{
    uint8_t kind;
    uint8_t data[4];
   
    receive_packet(&kind, 4, data);
   
    if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c))
        return data[2];
   
    return -1;
}
 
static void cuda_irq_handler(irq_t *irq, void *arg, ...)
{
    if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox))
        ipc_irq_send_notif(irq);
    else {
        int scan_code = cuda_get_scancode();
       
        if (scan_code != -1) {
            uint8_t scancode = (uint8_t) scan_code;
            if ((scancode & 0x80) != 0x80)
                chardev_push_character(&kbrd, lchars[scancode & 0x7f]);
        }
    }
}
 
static irq_ownership_t cuda_claim(void)
{
    return IRQ_ACCEPT;
}
 
 
/** Initialize keyboard and service interrupts using kernel routine */
void cuda_grab(void)
{
    ipl_t ipl = interrupts_disable();
    spinlock_lock(&cuda_irq.lock);
    cuda_irq.notif_cfg.notify = false;
    spinlock_unlock(&cuda_irq.lock);
    interrupts_restore(ipl);
}
 
 
/** Resume the former interrupt vector */
void cuda_release(void)
{
    ipl_t ipl = interrupts_disable();
    spinlock_lock(&cuda_irq.lock);
    if (cuda_irq.notif_cfg.answerbox)
        cuda_irq.notif_cfg.notify = true;
    spinlock_unlock(&cuda_irq.unlock);
    interrupts_restore(ipl);
}
 
 
void cuda_init(devno_t devno, uintptr_t base, size_t size)
{
    cuda = (uint8_t *) hw_map(base, size); 
   
    chardev_initialize("cuda_kbd", &kbrd, &ops);
    stdin = &kbrd;
   
    irq_initialize(&cuda_irq);
    cuda_irq.devno = devno;
    cuda_irq.inr = CUDA_IRQ;
    cuda_irq.claim = cuda_claim;
    cuda_irq.handler = cuda_irq_handler;
    irq_register(&cuda_irq);
   
    pic_enable_interrupt(CUDA_IRQ);
 
    sysinfo_set_item_val("kbd", NULL, true);
    sysinfo_set_item_val("kbd.devno", NULL, devno);
    sysinfo_set_item_val("kbd.inr", NULL, CUDA_IRQ);
    sysinfo_set_item_val("kbd.address.virtual", NULL, base);
}
 
 
static void send_packet(const uint8_t kind, count_t count, ...)
{
    index_t i;
    va_list va;
   
    cuda[B] = cuda[B] | TIP;
    cuda[ACR] = cuda[ACR] | SR_OUT;
    cuda[SR] = kind;
    cuda[B] = cuda[B] & ~TIP;
   
    va_start(va, count);
   
    for (i = 0; i < count; i++) {
        cuda[ACR] = cuda[ACR] | SR_OUT;
        cuda[SR] = va_arg(va, int);
        cuda[B] = cuda[B] | TACK;
    }
   
    va_end(va);
   
    cuda[B] = cuda[B] | TIP;
}
 
 
void cpu_halt(void) {
    asm volatile (
        "b 0\n"
    );
}
 
void arch_reboot(void) {
    send_packet(PACKET_CUDA, 1, CUDA_RESET);
 
    asm volatile (
        "b 0\n"
    );
}
 
/** @}
 */
 

Rev 2089	Rev 2227
1	/*	1	/*
2	* Copyright (c) 2006 Martin Decky	2	* Copyright (c) 2006 Martin Decky
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 ppc32	29	/** @addtogroup ppc32
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch/drivers/cuda.h>	35	#include <arch/drivers/cuda.h>
36	#include <ipc/irq.h>	36	#include <ipc/irq.h>
37	#include <arch/asm.h>	37	#include <arch/asm.h>
38	#include <console/console.h>	38	#include <console/console.h>
39	#include <console/chardev.h>	39	#include <console/chardev.h>
40	#include <arch/drivers/pic.h>	40	#include <arch/drivers/pic.h>
41	#include <sysinfo/sysinfo.h>	41	#include <sysinfo/sysinfo.h>
42	#include <interrupt.h>	42	#include <interrupt.h>
43	#include <stdarg.h>	43	#include <stdarg.h>
44		44
45	#define CUDA_IRQ 10	45	#define CUDA_IRQ 10
46	#define SPECIAL '?'	46	#define SPECIAL '?'
47		47
48	#define PACKET_ADB 0x00	48	#define PACKET_ADB 0x00
49	#define PACKET_CUDA 0x01	49	#define PACKET_CUDA 0x01
50		50
51	#define CUDA_POWERDOWN 0x0a	51	#define CUDA_POWERDOWN 0x0a
-		52	#define CUDA_RESET 0x11
52		53
53	#define RS 0x200	54	#define RS 0x200
54	#define B (0 * RS)	55	#define B (0 * RS)
55	#define A (1 * RS)	56	#define A (1 * RS)
56	#define SR (10 * RS)	57	#define SR (10 * RS)
57	#define ACR (11 * RS)	58	#define ACR (11 * RS)
58		59
59	#define SR_OUT 0x10	60	#define SR_OUT 0x10
60	#define TACK 0x10	61	#define TACK 0x10
61	#define TIP 0x20	62	#define TIP 0x20
62		63
63		64
64	static volatile uint8_t *cuda = NULL;	65	static volatile uint8_t *cuda = NULL;
65	static irq_t cuda_irq; /*< Cuda's IRQ. /	66	static irq_t cuda_irq; /*< Cuda's IRQ. /
66		67
67	static char lchars[0x80] = {	68	static char lchars[0x80] = {
68	'a',	69	'a',
69	's',	70	's',
70	'd',	71	'd',
71	'f',	72	'f',
72	'h',	73	'h',
73	'g',	74	'g',
74	'z',	75	'z',
75	'x',	76	'x',
76	'c',	77	'c',
77	'v',	78	'v',
78	SPECIAL,	79	SPECIAL,
79	'b',	80	'b',
80	'q',	81	'q',
81	'w',	82	'w',
82	'e',	83	'e',
83	'r',	84	'r',
84	'y',	85	'y',
85	't',	86	't',
86	'1',	87	'1',
87	'2',	88	'2',
88	'3',	89	'3',
89	'4',	90	'4',
90	'6',	91	'6',
91	'5',	92	'5',
92	'=',	93	'=',
93	'9',	94	'9',
94	'7',	95	'7',
95	'-',	96	'-',
96	'8',	97	'8',
97	'0',	98	'0',
98	']',	99	']',
99	'o',	100	'o',
100	'u',	101	'u',
101	'[',	102	'[',
102	'i',	103	'i',
103	'p',	104	'p',
104	'\n', /* Enter */	105	'\n', /* Enter */
105	'l',	106	'l',
106	'j',	107	'j',
107	'\'',	108	'\'',
108	'k',	109	'k',
109	';',	110	';',
110	'\\',	111	'\\',
111	',',	112	',',
112	'/',	113	'/',
113	'n',	114	'n',
114	'm',	115	'm',
115	'.',	116	'.',
116	'\t', /* Tab */	117	'\t', /* Tab */
117	' ',	118	' ',
118	'`',	119	'`',
119	'\b', /* Backspace */	120	'\b', /* Backspace */
120	SPECIAL,	121	SPECIAL,
121	SPECIAL, /* Escape */	122	SPECIAL, /* Escape */
122	SPECIAL, /* Ctrl */	123	SPECIAL, /* Ctrl */
123	SPECIAL, /* Alt */	124	SPECIAL, /* Alt */
124	SPECIAL, /* Shift */	125	SPECIAL, /* Shift */
125	SPECIAL, /* Caps-Lock */	126	SPECIAL, /* Caps-Lock */
126	SPECIAL, /* RAlt */	127	SPECIAL, /* RAlt */
127	SPECIAL, /* Left */	128	SPECIAL, /* Left */
128	SPECIAL, /* Right */	129	SPECIAL, /* Right */
129	SPECIAL, /* Down */	130	SPECIAL, /* Down */
130	SPECIAL, /* Up */	131	SPECIAL, /* Up */
131	SPECIAL,	132	SPECIAL,
132	SPECIAL,	133	SPECIAL,
133	'.', /* Keypad . */	134	'.', /* Keypad . */
134	SPECIAL,	135	SPECIAL,
135	'', / Keypad * */	136	'', / Keypad * */
136	SPECIAL,	137	SPECIAL,
137	'+', /* Keypad + */	138	'+', /* Keypad + */
138	SPECIAL,	139	SPECIAL,
139	SPECIAL, /* NumLock */	140	SPECIAL, /* NumLock */
140	SPECIAL,	141	SPECIAL,
141	SPECIAL,	142	SPECIAL,
142	SPECIAL,	143	SPECIAL,
143	'/', /* Keypad / */	144	'/', /* Keypad / */
144	'\n', /* Keypad Enter */	145	'\n', /* Keypad Enter */
145	SPECIAL,	146	SPECIAL,
146	'-', /* Keypad - */	147	'-', /* Keypad - */
147	SPECIAL,	148	SPECIAL,
148	SPECIAL,	149	SPECIAL,
149	SPECIAL,	150	SPECIAL,
150	'0', /* Keypad 0 */	151	'0', /* Keypad 0 */
151	'1', /* Keypad 1 */	152	'1', /* Keypad 1 */
152	'2', /* Keypad 2 */	153	'2', /* Keypad 2 */
153	'3', /* Keypad 3 */	154	'3', /* Keypad 3 */
154	'4', /* Keypad 4 */	155	'4', /* Keypad 4 */
155	'5', /* Keypad 5 */	156	'5', /* Keypad 5 */
156	'6', /* Keypad 6 */	157	'6', /* Keypad 6 */
157	'7', /* Keypad 7 */	158	'7', /* Keypad 7 */
158	SPECIAL,	159	SPECIAL,
159	'8', /* Keypad 8 */	160	'8', /* Keypad 8 */
160	'9', /* Keypad 9 */	161	'9', /* Keypad 9 */
161	SPECIAL,	162	SPECIAL,
162	SPECIAL,	163	SPECIAL,
163	SPECIAL,	164	SPECIAL,
164	SPECIAL, /* F5 */	165	SPECIAL, /* F5 */
165	SPECIAL, /* F6 */	166	SPECIAL, /* F6 */
166	SPECIAL, /* F7 */	167	SPECIAL, /* F7 */
167	SPECIAL, /* F3 */	168	SPECIAL, /* F3 */
168	SPECIAL, /* F8 */	169	SPECIAL, /* F8 */
169	SPECIAL, /* F9 */	170	SPECIAL, /* F9 */
170	SPECIAL,	171	SPECIAL,
171	SPECIAL, /* F11 */	172	SPECIAL, /* F11 */
172	SPECIAL,	173	SPECIAL,
173	SPECIAL, /* F13 */	174	SPECIAL, /* F13 */
174	SPECIAL,	175	SPECIAL,
175	SPECIAL, /* ScrollLock */	176	SPECIAL, /* ScrollLock */
176	SPECIAL,	177	SPECIAL,
177	SPECIAL, /* F10 */	178	SPECIAL, /* F10 */
178	SPECIAL,	179	SPECIAL,
179	SPECIAL, /* F12 */	180	SPECIAL, /* F12 */
180	SPECIAL,	181	SPECIAL,
181	SPECIAL, /* Pause */	182	SPECIAL, /* Pause */
182	SPECIAL, /* Insert */	183	SPECIAL, /* Insert */
183	SPECIAL, /* Home */	184	SPECIAL, /* Home */
184	SPECIAL, /* PageUp */	185	SPECIAL, /* PageUp */
185	SPECIAL, /* Delete */	186	SPECIAL, /* Delete */
186	SPECIAL, /* F4 */	187	SPECIAL, /* F4 */
187	SPECIAL, /* End */	188	SPECIAL, /* End */
188	SPECIAL, /* F2 */	189	SPECIAL, /* F2 */
189	SPECIAL, /* PageDown */	190	SPECIAL, /* PageDown */
190	SPECIAL /* F1 */	191	SPECIAL /* F1 */
191	};	192	};
192		193
193		194
194	void send_packet(const uint8_t kind, index_t count, ...);	-
195		-
196		-
197	static void receive_packet(uint8_t *kind, index_t count, uint8_t data[])	195	static void receive_packet(uint8_t *kind, index_t count, uint8_t data[])
198	{	196	{
199	cuda[B] = cuda[B] & ~TIP;	197	cuda[B] = cuda[B] & ~TIP;
200	*kind = cuda[SR];	198	*kind = cuda[SR];
201		199
202	index_t i;	200	index_t i;
203	for (i = 0; i < count; i++)	201	for (i = 0; i < count; i++)
204	data[i] = cuda[SR];	202	data[i] = cuda[SR];
205		203
206	cuda[B] = cuda[B] \| TIP;	204	cuda[B] = cuda[B] \| TIP;
207	}	205	}
208		206
209		207
210	/* Called from getc(). */	208	/* Called from getc(). */
211	static void cuda_resume(chardev_t *d)	209	static void cuda_resume(chardev_t *d)
212	{	210	{
213	}	211	}
214		212
215		213
216	/* Called from getc(). */	214	/* Called from getc(). */
217	static void cuda_suspend(chardev_t *d)	215	static void cuda_suspend(chardev_t *d)
218	{	216	{
219	}	217	}
220		218
221		219
222	static char key_read(chardev_t *d)	220	static char key_read(chardev_t *d)
223	{	221	{
224	char ch;	222	char ch;
225		223
226	ch = 0;	224	ch = 0;
227	return ch;	225	return ch;
228	}	226	}
229		227
230		228
231	static chardev_t kbrd;	229	static chardev_t kbrd;
232	static chardev_operations_t ops = {	230	static chardev_operations_t ops = {
233	.suspend = cuda_suspend,	231	.suspend = cuda_suspend,
234	.resume = cuda_resume,	232	.resume = cuda_resume,
235	.read = key_read	233	.read = key_read
236	};	234	};
237		235
238		236
239	int cuda_get_scancode(void)	237	int cuda_get_scancode(void)
240	{	238	{
241	uint8_t kind;	239	uint8_t kind;
242	uint8_t data[4];	240	uint8_t data[4];
243		241
244	receive_packet(&kind, 4, data);	242	receive_packet(&kind, 4, data);
245		243
246	if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c))	244	if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c))
247	return data[2];	245	return data[2];
248		246
249	return -1;	247	return -1;
250	}	248	}
251		249
252	static void cuda_irq_handler(irq_t irq, void arg, ...)	250	static void cuda_irq_handler(irq_t irq, void arg, ...)
253	{	251	{
254	if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox))	252	if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox))
255	ipc_irq_send_notif(irq);	253	ipc_irq_send_notif(irq);
256	else {	254	else {
257	int scan_code = cuda_get_scancode();	255	int scan_code = cuda_get_scancode();
258		256
259	if (scan_code != -1) {	257	if (scan_code != -1) {
260	uint8_t scancode = (uint8_t) scan_code;	258	uint8_t scancode = (uint8_t) scan_code;
261	if ((scancode & 0x80) != 0x80)	259	if ((scancode & 0x80) != 0x80)
262	chardev_push_character(&kbrd, lchars[scancode & 0x7f]);	260	chardev_push_character(&kbrd, lchars[scancode & 0x7f]);
263	}	261	}
264	}	262	}
265	}	263	}
266		264
267	static irq_ownership_t cuda_claim(void)	265	static irq_ownership_t cuda_claim(void)
268	{	266	{
269	return IRQ_ACCEPT;	267	return IRQ_ACCEPT;
270	}	268	}
271		269
272		270
273	/** Initialize keyboard and service interrupts using kernel routine */	271	/** Initialize keyboard and service interrupts using kernel routine */
274	void cuda_grab(void)	272	void cuda_grab(void)
275	{	273	{
276	ipl_t ipl = interrupts_disable();	274	ipl_t ipl = interrupts_disable();
277	spinlock_lock(&cuda_irq.lock);	275	spinlock_lock(&cuda_irq.lock);
278	cuda_irq.notif_cfg.notify = false;	276	cuda_irq.notif_cfg.notify = false;
279	spinlock_unlock(&cuda_irq.lock);	277	spinlock_unlock(&cuda_irq.lock);
280	interrupts_restore(ipl);	278	interrupts_restore(ipl);
281	}	279	}
282		280
283		281
284	/** Resume the former interrupt vector */	282	/** Resume the former interrupt vector */
285	void cuda_release(void)	283	void cuda_release(void)
286	{	284	{
287	ipl_t ipl = interrupts_disable();	285	ipl_t ipl = interrupts_disable();
288	spinlock_lock(&cuda_irq.lock);	286	spinlock_lock(&cuda_irq.lock);
289	if (cuda_irq.notif_cfg.answerbox)	287	if (cuda_irq.notif_cfg.answerbox)
290	cuda_irq.notif_cfg.notify = true;	288	cuda_irq.notif_cfg.notify = true;
291	spinlock_unlock(&cuda_irq.unlock);	289	spinlock_unlock(&cuda_irq.unlock);
292	interrupts_restore(ipl);	290	interrupts_restore(ipl);
293	}	291	}
294		292
295		293
296	void cuda_init(devno_t devno, uintptr_t base, size_t size)	294	void cuda_init(devno_t devno, uintptr_t base, size_t size)
297	{	295	{
298	cuda = (uint8_t *) hw_map(base, size);	296	cuda = (uint8_t *) hw_map(base, size);
299		297
300	chardev_initialize("cuda_kbd", &kbrd, &ops);	298	chardev_initialize("cuda_kbd", &kbrd, &ops);
301	stdin = &kbrd;	299	stdin = &kbrd;
302		300
303	irq_initialize(&cuda_irq);	301	irq_initialize(&cuda_irq);
304	cuda_irq.devno = devno;	302	cuda_irq.devno = devno;
305	cuda_irq.inr = CUDA_IRQ;	303	cuda_irq.inr = CUDA_IRQ;
306	cuda_irq.claim = cuda_claim;	304	cuda_irq.claim = cuda_claim;
307	cuda_irq.handler = cuda_irq_handler;	305	cuda_irq.handler = cuda_irq_handler;
308	irq_register(&cuda_irq);	306	irq_register(&cuda_irq);
309		307
310	pic_enable_interrupt(CUDA_IRQ);	308	pic_enable_interrupt(CUDA_IRQ);
311		309
312	sysinfo_set_item_val("kbd", NULL, true);	310	sysinfo_set_item_val("kbd", NULL, true);
313	sysinfo_set_item_val("kbd.devno", NULL, devno);	311	sysinfo_set_item_val("kbd.devno", NULL, devno);
314	sysinfo_set_item_val("kbd.inr", NULL, CUDA_IRQ);	312	sysinfo_set_item_val("kbd.inr", NULL, CUDA_IRQ);
315	sysinfo_set_item_val("kbd.address.virtual", NULL, base);	313	sysinfo_set_item_val("kbd.address.virtual", NULL, base);
316	}	314	}
317		315
318		316
319	void send_packet(const uint8_t kind, index_t count, ...)	317	static void send_packet(const uint8_t kind, count_t count, ...)
320	{	318	{
321	index_t i;	319	index_t i;
322	va_list va;	320	va_list va;
323		321
324	cuda[B] = cuda[B] \| TIP;	322	cuda[B] = cuda[B] \| TIP;
325	cuda[ACR] = cuda[ACR] \| SR_OUT;	323	cuda[ACR] = cuda[ACR] \| SR_OUT;
326	cuda[SR] = kind;	324	cuda[SR] = kind;
327	cuda[B] = cuda[B] & ~TIP;	325	cuda[B] = cuda[B] & ~TIP;
328		326
329	va_start(va, count);	327	va_start(va, count);
330		328
331	for (i = 0; i < count; i++) {	329	for (i = 0; i < count; i++) {
332	cuda[ACR] = cuda[ACR] \| SR_OUT;	330	cuda[ACR] = cuda[ACR] \| SR_OUT;
333	cuda[SR] = va_arg(va, int);	331	cuda[SR] = va_arg(va, int);
334	cuda[B] = cuda[B] \| TACK;	332	cuda[B] = cuda[B] \| TACK;
335	}	333	}
336		334
337	va_end(va);	335	va_end(va);
338		336
339	cuda[B] = cuda[B] \| TIP;	337	cuda[B] = cuda[B] \| TIP;
340	}	338	}
341		339
342		340
343	void cpu_halt(void) {	341	void cpu_halt(void) {
-		342	asm volatile (
-		343	"b 0\n"
-		344	);
-		345	}
-		346
344	#ifdef CONFIG_POWEROFF	347	void arch_reboot(void) {
345	send_packet(PACKET_CUDA, 1, CUDA_POWERDOWN);	348	send_packet(PACKET_CUDA, 1, CUDA_RESET);
346	#endif	-
347	asm volatile (	349	asm volatile (
348	"b 0\n"	350	"b 0\n"
349	);	351	);
350	}	352	}
351		353
352	/** @}	354	/** @}
353	*/	355	*/
354		356

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(root)/trunk/kernel/arch/ppc32/src/drivers/cuda.c – Rev 2089 → 2227