src/devices/dev_iq80321_7seg.c

/*
 *  Copyright (C) 2006  Anders Gavare.  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. 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.
 *  3. 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
 *
 *
 *  $Id: dev_iq80321_7seg.c,v 1.2 2006/02/09 20:02:59 debug Exp $
 *
 *  IQ80321 LED device. Should work with NetBSD's iq80321_7seg.c.
 *
 *  TODO: Graphical output of LED lines?
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "cpu.h"
#include "device.h"
#include "machine.h"
#include "memory.h"
#include "misc.h"


struct iq80321_7seg_data {
        uint8_t         msb, lsb;
};


/*
 *  dev_iq80321_7seg_access():
 */
DEVICE_ACCESS(iq80321_7seg)
{
        struct iq80321_7seg_data *d = extra;
        uint64_t idata = 0, odata = 0;

        if (writeflag == MEM_WRITE)
                idata = memory_readmax64(cpu, data, len);

        switch (relative_addr) {

        case 0: if (writeflag == MEM_READ)
                        odata = d->msb;
                else {
                        d->msb = idata;
                        debug("[ iq80321_7seg: setting MSB to 0x%02x ]\n",
                            (int)idata);
                }
                break;

        case 0x10000:
                if (writeflag == MEM_READ)
                        odata = d->lsb;
                else {
                        d->lsb = idata;
                        debug("[ iq80321_7seg: setting LSB to 0x%02x ]\n",
                            (int)idata);
                }
                break;

        default:if (writeflag == MEM_READ) {
                        fatal("[ iq80321_7seg: read from 0x%x ]\n",
                            (int)relative_addr);
                } else {
                        fatal("[ iq80321_7seg: write to 0x%x: 0x%llx ]\n",
                            (int)relative_addr, (long long)idata);
                }
                exit(1);
        }

        if (writeflag == MEM_READ)
                memory_writemax64(cpu, data, len, odata);

        return 1;
}


DEVINIT(iq80321_7seg)
{
        struct iq80321_7seg_data *d = malloc(sizeof(struct iq80321_7seg_data));
        if (d == NULL) {
                fprintf(stderr, "out of memory\n");
                exit(1);
        }
        memset(d, 0, sizeof(struct iq80321_7seg_data));

        /*  0xfe840000 and 0xfe850000  */
        memory_device_register(devinit->machine->memory, devinit->name,
            devinit->addr, 0x10004, dev_iq80321_7seg_access, d,
            DM_DEFAULT, NULL);

        return 1;
}


1	/*
2	* Copyright (C) 2006 Anders Gavare. All rights reserved.
3	*
4	* Redistribution and use in source and binary forms, with or without
5	* modification, are permitted provided that the following conditions are met:
6	*
7	* 1. Redistributions of source code must retain the above copyright
8	* notice, this list of conditions and the following disclaimer.
9	* 2. Redistributions in binary form must reproduce the above copyright
10	* notice, this list of conditions and the following disclaimer in the
11	* documentation and/or other materials provided with the distribution.
12	* 3. The name of the author may not be used to endorse or promote products
13	* derived from this software without specific prior written permission.
14	*
15	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25	* SUCH DAMAGE.
26	*
27	*
28	* $Id: dev_iq80321_7seg.c,v 1.2 2006/02/09 20:02:59 debug Exp $
29	*
30	* IQ80321 LED device. Should work with NetBSD's iq80321_7seg.c.
31	*
32	* TODO: Graphical output of LED lines?
33	*/
34
35	#include <stdio.h>
36	#include <stdlib.h>
37	#include <string.h>
38
39	#include "cpu.h"
40	#include "device.h"
41	#include "machine.h"
42	#include "memory.h"
43	#include "misc.h"
44
45
46	struct iq80321_7seg_data {
47	uint8_t msb, lsb;
48	};
49
50
51	/*
52	* dev_iq80321_7seg_access():
53	*/
54	DEVICE_ACCESS(iq80321_7seg)
55	{
56	struct iq80321_7seg_data *d = extra;
57	uint64_t idata = 0, odata = 0;
58
59	if (writeflag == MEM_WRITE)
60	idata = memory_readmax64(cpu, data, len);
61
62	switch (relative_addr) {
63
64	case 0: if (writeflag == MEM_READ)
65	odata = d->msb;
66	else {
67	d->msb = idata;
68	debug("[ iq80321_7seg: setting MSB to 0x%02x ]\n",
69	(int)idata);
70	}
71	break;
72
73	case 0x10000:
74	if (writeflag == MEM_READ)
75	odata = d->lsb;
76	else {
77	d->lsb = idata;
78	debug("[ iq80321_7seg: setting LSB to 0x%02x ]\n",
79	(int)idata);
80	}
81	break;
82
83	default:if (writeflag == MEM_READ) {
84	fatal("[ iq80321_7seg: read from 0x%x ]\n",
85	(int)relative_addr);
86	} else {
87	fatal("[ iq80321_7seg: write to 0x%x: 0x%llx ]\n",
88	(int)relative_addr, (long long)idata);
89	}
90	exit(1);
91	}
92
93	if (writeflag == MEM_READ)
94	memory_writemax64(cpu, data, len, odata);
95
96	return 1;
97	}
98
99
100	DEVINIT(iq80321_7seg)
101	{
102	struct iq80321_7seg_data *d = malloc(sizeof(struct iq80321_7seg_data));
103	if (d == NULL) {
104	fprintf(stderr, "out of memory\n");
105	exit(1);
106	}
107	memset(d, 0, sizeof(struct iq80321_7seg_data));
108
109	/* 0xfe840000 and 0xfe850000 */
110	memory_device_register(devinit->machine->memory, devinit->name,
111	devinit->addr, 0x10004, dev_iq80321_7seg_access, d,
112	DM_DEFAULT, NULL);
113
114	return 1;
115	}
116
117