WebSVN – HelenOS – Diff – /branches/dd/kernel/genarch/src/drivers/via-cuda/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 <ddi/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 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 ipc_notif_cfg_t saved_notif_cfg;
 
 
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 */
};
 
 
void send_packet(const uint8_t kind, index_t count, ...);
 
 
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.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)
{
    if (cuda_irq.notif_cfg.answerbox) {
        saved_notif_cfg = cuda_irq.notif_cfg;
        cuda_irq.notif_cfg.answerbox = NULL;
        cuda_irq.notif_cfg.code = NULL;
        cuda_irq.notif_cfg.method = 0;
        cuda_irq.notif_cfg.counter = 0;
    }
}
 
 
/** Resume the former interrupt vector */
void cuda_release(void)
{
    if (saved_notif_cfg.answerbox)
        cuda_irq.notif_cfg = saved_notif_cfg;
}
 
 
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);
 
    cuda_grab();
}
 
 
void send_packet(const uint8_t kind, index_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) {
#ifdef CONFIG_POWEROFF
    send_packet(PACKET_CUDA, 1, CUDA_POWERDOWN);
#endif
    asm volatile (
        "b 0\n"
    );
}
 
/** @}
 */
 

Rev 1787	Rev 1928
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 <ddi/irq.h>
36	#include <arch/asm.h>	37	#include <arch/asm.h>
37	#include <console/console.h>	38	#include <console/console.h>
38	#include <console/chardev.h>	39	#include <console/chardev.h>
39	#include <arch/drivers/pic.h>	40	#include <arch/drivers/pic.h>
40	#include <sysinfo/sysinfo.h>	41	#include <sysinfo/sysinfo.h>
41	#include <interrupt.h>	42	#include <interrupt.h>
42	#include <stdarg.h>	43	#include <stdarg.h>
43		44
-		45	#define CUDA_IRQ 10
44	#define SPECIAL '?'	46	#define SPECIAL '?'
45		47
46	#define PACKET_ADB 0x00	48	#define PACKET_ADB 0x00
47	#define PACKET_CUDA 0x01	49	#define PACKET_CUDA 0x01
48		50
49	#define CUDA_POWERDOWN 0x0a	51	#define CUDA_POWERDOWN 0x0a
50		52
51	#define RS 0x200	53	#define RS 0x200
52	#define B (0 * RS)	54	#define B (0 * RS)
53	#define A (1 * RS)	55	#define A (1 * RS)
54	#define SR (10 * RS)	56	#define SR (10 * RS)
55	#define ACR (11 * RS)	57	#define ACR (11 * RS)
56		58
57	#define SR_OUT 0x10	59	#define SR_OUT 0x10
58	#define TACK 0x10	60	#define TACK 0x10
59	#define TIP 0x20	61	#define TIP 0x20
60		62
61		63
62	static volatile uint8_t *cuda = NULL;	64	static volatile uint8_t *cuda = NULL;
-		65	static irq_t cuda_irq; /*< Cuda's IRQ. /
-		66
63	static iroutine vector;	67	static ipc_notif_cfg_t saved_notif_cfg;
64		68
65		69
66	static char lchars[0x80] = {	70	static char lchars[0x80] = {
67	'a',	71	'a',
68	's',	72	's',
69	'd',	73	'd',
70	'f',	74	'f',
71	'h',	75	'h',
72	'g',	76	'g',
73	'z',	77	'z',
74	'x',	78	'x',
75	'c',	79	'c',
76	'v',	80	'v',
77	SPECIAL,	81	SPECIAL,
78	'b',	82	'b',
79	'q',	83	'q',
80	'w',	84	'w',
81	'e',	85	'e',
82	'r',	86	'r',
83	'y',	87	'y',
84	't',	88	't',
85	'1',	89	'1',
86	'2',	90	'2',
87	'3',	91	'3',
88	'4',	92	'4',
89	'6',	93	'6',
90	'5',	94	'5',
91	'=',	95	'=',
92	'9',	96	'9',
93	'7',	97	'7',
94	'-',	98	'-',
95	'8',	99	'8',
96	'0',	100	'0',
97	']',	101	']',
98	'o',	102	'o',
99	'u',	103	'u',
100	'[',	104	'[',
101	'i',	105	'i',
102	'p',	106	'p',
103	'\n', /* Enter */	107	'\n', /* Enter */
104	'l',	108	'l',
105	'j',	109	'j',
106	'\'',	110	'\'',
107	'k',	111	'k',
108	';',	112	';',
109	'\\',	113	'\\',
110	',',	114	',',
111	'/',	115	'/',
112	'n',	116	'n',
113	'm',	117	'm',
114	'.',	118	'.',
115	'\t', /* Tab */	119	'\t', /* Tab */
116	' ',	120	' ',
117	'`',	121	'`',
118	'\b', /* Backspace */	122	'\b', /* Backspace */
119	SPECIAL,	123	SPECIAL,
120	SPECIAL, /* Escape */	124	SPECIAL, /* Escape */
121	SPECIAL, /* Ctrl */	125	SPECIAL, /* Ctrl */
122	SPECIAL, /* Alt */	126	SPECIAL, /* Alt */
123	SPECIAL, /* Shift */	127	SPECIAL, /* Shift */
124	SPECIAL, /* Caps-Lock */	128	SPECIAL, /* Caps-Lock */
125	SPECIAL, /* RAlt */	129	SPECIAL, /* RAlt */
126	SPECIAL, /* Left */	130	SPECIAL, /* Left */
127	SPECIAL, /* Right */	131	SPECIAL, /* Right */
128	SPECIAL, /* Down */	132	SPECIAL, /* Down */
129	SPECIAL, /* Up */	133	SPECIAL, /* Up */
130	SPECIAL,	134	SPECIAL,
131	SPECIAL,	135	SPECIAL,
132	'.', /* Keypad . */	136	'.', /* Keypad . */
133	SPECIAL,	137	SPECIAL,
134	'', / Keypad * */	138	'', / Keypad * */
135	SPECIAL,	139	SPECIAL,
136	'+', /* Keypad + */	140	'+', /* Keypad + */
137	SPECIAL,	141	SPECIAL,
138	SPECIAL, /* NumLock */	142	SPECIAL, /* NumLock */
139	SPECIAL,	143	SPECIAL,
140	SPECIAL,	144	SPECIAL,
141	SPECIAL,	145	SPECIAL,
142	'/', /* Keypad / */	146	'/', /* Keypad / */
143	'\n', /* Keypad Enter */	147	'\n', /* Keypad Enter */
144	SPECIAL,	148	SPECIAL,
145	'-', /* Keypad - */	149	'-', /* Keypad - */
146	SPECIAL,	150	SPECIAL,
147	SPECIAL,	151	SPECIAL,
148	SPECIAL,	152	SPECIAL,
149	'0', /* Keypad 0 */	153	'0', /* Keypad 0 */
150	'1', /* Keypad 1 */	154	'1', /* Keypad 1 */
151	'2', /* Keypad 2 */	155	'2', /* Keypad 2 */
152	'3', /* Keypad 3 */	156	'3', /* Keypad 3 */
153	'4', /* Keypad 4 */	157	'4', /* Keypad 4 */
154	'5', /* Keypad 5 */	158	'5', /* Keypad 5 */
155	'6', /* Keypad 6 */	159	'6', /* Keypad 6 */
156	'7', /* Keypad 7 */	160	'7', /* Keypad 7 */
157	SPECIAL,	161	SPECIAL,
158	'8', /* Keypad 8 */	162	'8', /* Keypad 8 */
159	'9', /* Keypad 9 */	163	'9', /* Keypad 9 */
160	SPECIAL,	164	SPECIAL,
161	SPECIAL,	165	SPECIAL,
162	SPECIAL,	166	SPECIAL,
163	SPECIAL, /* F5 */	167	SPECIAL, /* F5 */
164	SPECIAL, /* F6 */	168	SPECIAL, /* F6 */
165	SPECIAL, /* F7 */	169	SPECIAL, /* F7 */
166	SPECIAL, /* F3 */	170	SPECIAL, /* F3 */
167	SPECIAL, /* F8 */	171	SPECIAL, /* F8 */
168	SPECIAL, /* F9 */	172	SPECIAL, /* F9 */
169	SPECIAL,	173	SPECIAL,
170	SPECIAL, /* F11 */	174	SPECIAL, /* F11 */
171	SPECIAL,	175	SPECIAL,
172	SPECIAL, /* F13 */	176	SPECIAL, /* F13 */
173	SPECIAL,	177	SPECIAL,
174	SPECIAL, /* ScrollLock */	178	SPECIAL, /* ScrollLock */
175	SPECIAL,	179	SPECIAL,
176	SPECIAL, /* F10 */	180	SPECIAL, /* F10 */
177	SPECIAL,	181	SPECIAL,
178	SPECIAL, /* F12 */	182	SPECIAL, /* F12 */
179	SPECIAL,	183	SPECIAL,
180	SPECIAL, /* Pause */	184	SPECIAL, /* Pause */
181	SPECIAL, /* Insert */	185	SPECIAL, /* Insert */
182	SPECIAL, /* Home */	186	SPECIAL, /* Home */
183	SPECIAL, /* PageUp */	187	SPECIAL, /* PageUp */
184	SPECIAL, /* Delete */	188	SPECIAL, /* Delete */
185	SPECIAL, /* F4 */	189	SPECIAL, /* F4 */
186	SPECIAL, /* End */	190	SPECIAL, /* End */
187	SPECIAL, /* F2 */	191	SPECIAL, /* F2 */
188	SPECIAL, /* PageDown */	192	SPECIAL, /* PageDown */
189	SPECIAL /* F1 */	193	SPECIAL /* F1 */
190	};	194	};
191		195
192		196
193	void send_packet(const uint8_t kind, index_t count, ...);	197	void send_packet(const uint8_t kind, index_t count, ...);
194		198
195		199
196	static void receive_packet(uint8_t *kind, index_t count, uint8_t data[])	200	static void receive_packet(uint8_t *kind, index_t count, uint8_t data[])
197	{	201	{
198	cuda[B] = cuda[B] & ~TIP;	202	cuda[B] = cuda[B] & ~TIP;
199	*kind = cuda[SR];	203	*kind = cuda[SR];
200		204
201	index_t i;	205	index_t i;
202	for (i = 0; i < count; i++)	206	for (i = 0; i < count; i++)
203	data[i] = cuda[SR];	207	data[i] = cuda[SR];
204		208
205	cuda[B] = cuda[B] \| TIP;	209	cuda[B] = cuda[B] \| TIP;
206	}	210	}
207		211
208		212
209	/* Called from getc(). */	213	/* Called from getc(). */
210	static void cuda_resume(chardev_t *d)	214	static void cuda_resume(chardev_t *d)
211	{	215	{
212	}	216	}
213		217
214		218
215	/* Called from getc(). */	219	/* Called from getc(). */
216	static void cuda_suspend(chardev_t *d)	220	static void cuda_suspend(chardev_t *d)
217	{	221	{
218	}	222	}
219		223
220		224
221	static char key_read(chardev_t *d)	225	static char key_read(chardev_t *d)
222	{	226	{
223	char ch;	227	char ch;
224		228
225	ch = 0;	229	ch = 0;
226	return ch;	230	return ch;
227	}	231	}
228		232
229		233
230	static chardev_t kbrd;	234	static chardev_t kbrd;
231	static chardev_operations_t ops = {	235	static chardev_operations_t ops = {
232	.suspend = cuda_suspend,	236	.suspend = cuda_suspend,
233	.resume = cuda_resume,	237	.resume = cuda_resume,
234	.read = key_read	238	.read = key_read
235	};	239	};
236		240
237		241
238	int cuda_get_scancode(void)	242	int cuda_get_scancode(void)
239	{	243	{
240	uint8_t kind;	244	uint8_t kind;
241	uint8_t data[4];	245	uint8_t data[4];
242		246
243	receive_packet(&kind, 4, data);	247	receive_packet(&kind, 4, data);
244		248
245	if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c))	249	if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c))
246	return data[2];	250	return data[2];
247		251
248	return -1;	252	return -1;
249	}	253	}
250		254
251	static void cuda_irq(int n, istate_t *istate)	255	static void cuda_irq_handler(irq_t irq, void arg, ...)
252	{	256	{
-		257	if (irq->notif_cfg.answerbox)
-		258	ipc_irq_send_notif(irq);
-		259	else {
253	int scan_code = cuda_get_scancode();	260	int scan_code = cuda_get_scancode();
254		261
255	if (scan_code != -1) {	262	if (scan_code != -1) {
256	uint8_t scancode = (uint8_t) scan_code;	263	uint8_t scancode = (uint8_t) scan_code;
257	if ((scancode & 0x80) != 0x80)	264	if ((scancode & 0x80) != 0x80)
258	chardev_push_character(&kbrd, lchars[scancode & 0x7f]);	265	chardev_push_character(&kbrd, lchars[scancode & 0x7f]);
-		266	}
259	}	267	}
260	}	268	}
261		269
-		270	static irq_ownership_t cuda_claim(void)
-		271	{
-		272	return IRQ_ACCEPT;
-		273	}
-		274
262		275
263	/** Initialize keyboard and service interrupts using kernel routine */	276	/** Initialize keyboard and service interrupts using kernel routine */
264	void cuda_grab(void)	277	void cuda_grab(void)
265	{	278	{
-		279	if (cuda_irq.notif_cfg.answerbox) {
266	vector = int_register(CUDA_IRQ, "cuda", cuda_irq);	280	saved_notif_cfg = cuda_irq.notif_cfg;
-		281	cuda_irq.notif_cfg.answerbox = NULL;
-		282	cuda_irq.notif_cfg.code = NULL;
-		283	cuda_irq.notif_cfg.method = 0;
-		284	cuda_irq.notif_cfg.counter = 0;
-		285	}
267	}	286	}
268		287
269		288
270	/** Resume the former interrupt vector */	289	/** Resume the former interrupt vector */
271	void cuda_release(void)	290	void cuda_release(void)
272	{	291	{
273	if (vector)	292	if (saved_notif_cfg.answerbox)
274	int_register(CUDA_IRQ, "user_interrupt", vector);	293	cuda_irq.notif_cfg = saved_notif_cfg;
275	}	294	}
276		295
277		296
278	void cuda_init(uintptr_t base, size_t size)	297	void cuda_init(devno_t devno, uintptr_t base, size_t size)
279	{	298	{
280	cuda = (uint8_t *) hw_map(base, size);	299	cuda = (uint8_t *) hw_map(base, size);
281		-
282	int_register(CUDA_IRQ, "cuda", cuda_irq);	-
283	pic_enable_interrupt(CUDA_IRQ);	-
284		300
285	chardev_initialize("cuda_kbd", &kbrd, &ops);	301	chardev_initialize("cuda_kbd", &kbrd, &ops);
286	stdin = &kbrd;	302	stdin = &kbrd;
287		303
-		304	irq_initialize(&cuda_irq);
-		305	cuda_irq.devno = devno;
-		306	cuda_irq.inr = CUDA_IRQ;
-		307	cuda_irq.claim = cuda_claim;
-		308	cuda_irq.handler = cuda_irq_handler;
-		309	irq_register(&cuda_irq);
-		310
-		311	pic_enable_interrupt(CUDA_IRQ);
-		312
288	sysinfo_set_item_val("cuda", NULL, true);	313	sysinfo_set_item_val("kbd", NULL, true);
-		314	sysinfo_set_item_val("kbd.devno", NULL, devno);
289	sysinfo_set_item_val("cuda.irq", NULL, CUDA_IRQ);	315	sysinfo_set_item_val("kbd.inr", NULL, CUDA_IRQ);
-		316	sysinfo_set_item_val("kbd.address.virtual", NULL, base);
-		317
-		318	cuda_grab();
290	}	319	}
291		320
292		321
293	void send_packet(const uint8_t kind, index_t count, ...)	322	void send_packet(const uint8_t kind, index_t count, ...)
294	{	323	{
295	index_t i;	324	index_t i;
296	va_list va;	325	va_list va;
297		326
298	cuda[B] = cuda[B] \| TIP;	327	cuda[B] = cuda[B] \| TIP;
299	cuda[ACR] = cuda[ACR] \| SR_OUT;	328	cuda[ACR] = cuda[ACR] \| SR_OUT;
300	cuda[SR] = kind;	329	cuda[SR] = kind;
301	cuda[B] = cuda[B] & ~TIP;	330	cuda[B] = cuda[B] & ~TIP;
302		331
303	va_start(va, count);	332	va_start(va, count);
304		333
305	for (i = 0; i < count; i++) {	334	for (i = 0; i < count; i++) {
306	cuda[ACR] = cuda[ACR] \| SR_OUT;	335	cuda[ACR] = cuda[ACR] \| SR_OUT;
307	cuda[SR] = va_arg(va, int);	336	cuda[SR] = va_arg(va, int);
308	cuda[B] = cuda[B] \| TACK;	337	cuda[B] = cuda[B] \| TACK;
309	}	338	}
310		339
311	va_end(va);	340	va_end(va);
312		341
313	cuda[B] = cuda[B] \| TIP;	342	cuda[B] = cuda[B] \| TIP;
314	}	343	}
315		344
316		345
317	void cpu_halt(void) {	346	void cpu_halt(void) {
318	#ifdef CONFIG_POWEROFF	347	#ifdef CONFIG_POWEROFF
319	send_packet(PACKET_CUDA, 1, CUDA_POWERDOWN);	348	send_packet(PACKET_CUDA, 1, CUDA_POWERDOWN);
320	#endif	349	#endif
321	asm volatile (	350	asm volatile (
322	"b 0\n"	351	"b 0\n"
323	);	352	);
324	}	353	}
325		354
326	/** @}	355	/** @}
327	*/	356	*/
328		357

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(root)/branches/dd/kernel/genarch/src/drivers/via-cuda/cuda.c @ 4754 – Rev 1787 → 1928