WebSVN – HelenOS – Diff – /branches/dynload/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 <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>
#include <ddi/device.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;
}
 
 
static indev_t kbrd;
static indev_operations_t ops = {
    .poll = NULL
};
 
 
int cuda_get_scancode(void)
{
    if (cuda) {
        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)
{
    int scan_code = cuda_get_scancode();
   
    if (scan_code != -1) {
        uint8_t scancode = (uint8_t) scan_code;
        if ((scancode & 0x80) != 0x80)
            indev_push_character(&kbrd, lchars[scancode & 0x7f]);
    }
}
 
static irq_ownership_t cuda_claim(irq_t *irq)
{
    return IRQ_ACCEPT;
}
 
void cuda_init(uintptr_t base, size_t size)
{
    cuda = (uint8_t *) hw_map(base, size);
   
    indev_initialize("cuda_kbd", &kbrd, &ops);
    stdin = &kbrd;
   
    irq_initialize(&cuda_irq);
    cuda_irq.devno = device_assign_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.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) {
    if (cuda)
        send_packet(PACKET_CUDA, 1, CUDA_RESET);
   
    asm volatile (
        "b 0\n"
    );
}
 
/** @}
 */
 

Rev 4346	Rev 4347
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 <arch/asm.h>	36	#include <arch/asm.h>
37	#include <console/console.h>	37	#include <console/console.h>
38	#include <console/chardev.h>	38	#include <console/chardev.h>
39	#include <arch/drivers/pic.h>	39	#include <arch/drivers/pic.h>
40	#include <sysinfo/sysinfo.h>	40	#include <sysinfo/sysinfo.h>
41	#include <interrupt.h>	41	#include <interrupt.h>
42	#include <stdarg.h>	42	#include <stdarg.h>
-		43	#include <ddi/device.h>
43		44
44	#define CUDA_IRQ 10	45	#define CUDA_IRQ 10
45	#define SPECIAL '?'	46	#define SPECIAL '?'
46		47
47	#define PACKET_ADB 0x00	48	#define PACKET_ADB 0x00
48	#define PACKET_CUDA 0x01	49	#define PACKET_CUDA 0x01
49		50
50	#define CUDA_POWERDOWN 0x0a	51	#define CUDA_POWERDOWN 0x0a
51	#define CUDA_RESET 0x11	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	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[])
195	{	196	{
196	cuda[B] = cuda[B] & ~TIP;	197	cuda[B] = cuda[B] & ~TIP;
197	*kind = cuda[SR];	198	*kind = cuda[SR];
198		199
199	index_t i;	200	index_t i;
200	for (i = 0; i < count; i++)	201	for (i = 0; i < count; i++)
201	data[i] = cuda[SR];	202	data[i] = cuda[SR];
202		203
203	cuda[B] = cuda[B] \| TIP;	204	cuda[B] = cuda[B] \| TIP;
204	}	205	}
205		206
206		207
207	static indev_t kbrd;	208	static indev_t kbrd;
208	static indev_operations_t ops = {	209	static indev_operations_t ops = {
209	.poll = NULL	210	.poll = NULL
210	};	211	};
211		212
212		213
213	int cuda_get_scancode(void)	214	int cuda_get_scancode(void)
214	{	215	{
215	if (cuda) {	216	if (cuda) {
216	uint8_t kind;	217	uint8_t kind;
217	uint8_t data[4];	218	uint8_t data[4];
218		219
219	receive_packet(&kind, 4, data);	220	receive_packet(&kind, 4, data);
220		221
221	if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c))	222	if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c))
222	return data[2];	223	return data[2];
223	}	224	}
224		225
225	return -1;	226	return -1;
226	}	227	}
227		228
228	static void cuda_irq_handler(irq_t *irq)	229	static void cuda_irq_handler(irq_t *irq)
229	{	230	{
230	int scan_code = cuda_get_scancode();	231	int scan_code = cuda_get_scancode();
231		232
232	if (scan_code != -1) {	233	if (scan_code != -1) {
233	uint8_t scancode = (uint8_t) scan_code;	234	uint8_t scancode = (uint8_t) scan_code;
234	if ((scancode & 0x80) != 0x80)	235	if ((scancode & 0x80) != 0x80)
235	indev_push_character(&kbrd, lchars[scancode & 0x7f]);	236	indev_push_character(&kbrd, lchars[scancode & 0x7f]);
236	}	237	}
237	}	238	}
238		239
239	static irq_ownership_t cuda_claim(irq_t *irq)	240	static irq_ownership_t cuda_claim(irq_t *irq)
240	{	241	{
241	return IRQ_ACCEPT;	242	return IRQ_ACCEPT;
242	}	243	}
243		244
244	void cuda_init(devno_t devno, uintptr_t base, size_t size)	245	void cuda_init(uintptr_t base, size_t size)
245	{	246	{
246	cuda = (uint8_t *) hw_map(base, size);	247	cuda = (uint8_t *) hw_map(base, size);
247		248
248	indev_initialize("cuda_kbd", &kbrd, &ops);	249	indev_initialize("cuda_kbd", &kbrd, &ops);
249	stdin = &kbrd;	250	stdin = &kbrd;
250		251
251	irq_initialize(&cuda_irq);	252	irq_initialize(&cuda_irq);
252	cuda_irq.devno = devno;	253	cuda_irq.devno = device_assign_devno();
253	cuda_irq.inr = CUDA_IRQ;	254	cuda_irq.inr = CUDA_IRQ;
254	cuda_irq.claim = cuda_claim;	255	cuda_irq.claim = cuda_claim;
255	cuda_irq.handler = cuda_irq_handler;	256	cuda_irq.handler = cuda_irq_handler;
256	irq_register(&cuda_irq);	257	irq_register(&cuda_irq);
257		258
258	pic_enable_interrupt(CUDA_IRQ);	259	pic_enable_interrupt(CUDA_IRQ);
259		260
260	sysinfo_set_item_val("kbd", NULL, true);	261	sysinfo_set_item_val("kbd", NULL, true);
261	sysinfo_set_item_val("kbd.devno", NULL, devno);	-
262	sysinfo_set_item_val("kbd.inr", NULL, CUDA_IRQ);	262	sysinfo_set_item_val("kbd.inr", NULL, CUDA_IRQ);
263	sysinfo_set_item_val("kbd.address.virtual", NULL, base);	263	sysinfo_set_item_val("kbd.address.virtual", NULL, base);
264	}	264	}
265		265
266		266
267	static void send_packet(const uint8_t kind, count_t count, ...)	267	static void send_packet(const uint8_t kind, count_t count, ...)
268	{	268	{
269	index_t i;	269	index_t i;
270	va_list va;	270	va_list va;
271		271
272	cuda[B] = cuda[B] \| TIP;	272	cuda[B] = cuda[B] \| TIP;
273	cuda[ACR] = cuda[ACR] \| SR_OUT;	273	cuda[ACR] = cuda[ACR] \| SR_OUT;
274	cuda[SR] = kind;	274	cuda[SR] = kind;
275	cuda[B] = cuda[B] & ~TIP;	275	cuda[B] = cuda[B] & ~TIP;
276		276
277	va_start(va, count);	277	va_start(va, count);
278		278
279	for (i = 0; i < count; i++) {	279	for (i = 0; i < count; i++) {
280	cuda[ACR] = cuda[ACR] \| SR_OUT;	280	cuda[ACR] = cuda[ACR] \| SR_OUT;
281	cuda[SR] = va_arg(va, int);	281	cuda[SR] = va_arg(va, int);
282	cuda[B] = cuda[B] \| TACK;	282	cuda[B] = cuda[B] \| TACK;
283	}	283	}
284		284
285	va_end(va);	285	va_end(va);
286		286
287	cuda[B] = cuda[B] \| TIP;	287	cuda[B] = cuda[B] \| TIP;
288	}	288	}
289		289
290		290
291	void cpu_halt(void) {	291	void cpu_halt(void) {
292	asm volatile (	292	asm volatile (
293	"b 0\n"	293	"b 0\n"
294	);	294	);
295	}	295	}
296		296
297	void arch_reboot(void) {	297	void arch_reboot(void) {
298	if (cuda)	298	if (cuda)
299	send_packet(PACKET_CUDA, 1, CUDA_RESET);	299	send_packet(PACKET_CUDA, 1, CUDA_RESET);
300		300
301	asm volatile (	301	asm volatile (
302	"b 0\n"	302	"b 0\n"
303	);	303	);
304	}	304	}
305		305
306	/** @}	306	/** @}
307	*/	307	*/
308		308

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(root)/branches/dynload/kernel/arch/ppc32/src/drivers/cuda.c @ 4347 – Rev 4346 → 4347