src/devices/dev_sn.c

/*
 *  Copyright (C) 2004-2007  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_sn.c,v 1.18 2007/04/21 06:13:53 debug Exp $
 *  
 *  National Semiconductor SONIC ("sn") DP83932 ethernet.
 *
 *
 *  TODO
 */

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

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

#include "dp83932reg.h"


#define DEV_SN_LENGTH           0x1000

struct sn_data {
        struct interrupt irq;
        unsigned char   macaddr[6];
        uint32_t        reg[SONIC_NREGS];
};


DEVICE_ACCESS(sn)
{
        struct sn_data *d = (struct sn_data *) extra;
        uint64_t idata = 0, odata = 0;
        int regnr;

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

        regnr = relative_addr / sizeof(uint32_t);

        if (regnr < SONIC_NREGS) {
                if (writeflag == MEM_WRITE)
                        d->reg[regnr] = idata;
                else
                        odata = d->reg[regnr];
        }

        switch (regnr) {

        default:
                if (writeflag == MEM_WRITE) {
                        fatal("[ sn: unimplemented write to address 0x%x"
                            " (regnr %i), data=0x%02x ]\n",
                            (int)relative_addr, regnr, (int)idata);
                } else {
                        fatal("[ sn: unimplemented read from address 0x%x "
                            "(regnr %i) ]\n", (int)relative_addr, regnr);
                }
                /*  exit(1);  */
        }

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

        return 1;
}


DEVINIT(sn)
{
        char *name2;
        size_t nlen = 55;
        struct sn_data *d = malloc(sizeof(struct sn_data));

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

        INTERRUPT_CONNECT(devinit->interrupt_path, d->irq);

        net_generate_unique_mac(devinit->machine, d->macaddr);

        name2 = malloc(nlen);
        if (name2 == NULL) {
                fprintf(stderr, "out of memory in dev_sn_init()\n");
                exit(1);
        }
        snprintf(name2, nlen, "%s [%02x:%02x:%02x:%02x:%02x:%02x]",
            devinit->name, d->macaddr[0], d->macaddr[1], d->macaddr[2],
            d->macaddr[3], d->macaddr[4], d->macaddr[5]);

        memory_device_register(devinit->machine->memory, name2,
            devinit->addr, DEV_SN_LENGTH,
            dev_sn_access, (void *)d, DM_DEFAULT, NULL);

        net_add_nic(devinit->machine->emul->net, d, d->macaddr);

        return 1;
}

1	dpavlin	4	/*
2	dpavlin	34	* Copyright (C) 2004-2007 Anders Gavare. All rights reserved.
3	dpavlin	4	*
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	dpavlin	40	* $Id: dev_sn.c,v 1.18 2007/04/21 06:13:53 debug Exp $
29	dpavlin	4	*
30			* National Semiconductor SONIC ("sn") DP83932 ethernet.
31			*
32			*
33			* TODO
34			*/
35
36			#include <stdio.h>
37			#include <stdlib.h>
38			#include <string.h>
39
40			#include "cpu.h"
41			#include "device.h"
42			#include "emul.h"
43			#include "machine.h"
44			#include "memory.h"
45			#include "misc.h"
46			#include "net.h"
47
48			#include "dp83932reg.h"
49
50
51			#define DEV_SN_LENGTH 0x1000
52
53			struct sn_data {
54	dpavlin	40	struct interrupt irq;
55	dpavlin	4	unsigned char macaddr[6];
56			uint32_t reg[SONIC_NREGS];
57			};
58
59
60	dpavlin	22	DEVICE_ACCESS(sn)
61	dpavlin	4	{
62			struct sn_data d = (struct sn_data ) extra;
63			uint64_t idata = 0, odata = 0;
64			int regnr;
65
66	dpavlin	18	if (writeflag == MEM_WRITE)
67			idata = memory_readmax64(cpu, data, len);
68
69	dpavlin	4	regnr = relative_addr / sizeof(uint32_t);
70
71			if (regnr < SONIC_NREGS) {
72			if (writeflag == MEM_WRITE)
73			d->reg[regnr] = idata;
74			else
75			odata = d->reg[regnr];
76			}
77
78			switch (regnr) {
79	dpavlin	40
80	dpavlin	4	default:
81			if (writeflag == MEM_WRITE) {
82			fatal("[ sn: unimplemented write to address 0x%x"
83			" (regnr %i), data=0x%02x ]\n",
84			(int)relative_addr, regnr, (int)idata);
85			} else {
86			fatal("[ sn: unimplemented read from address 0x%x "
87			"(regnr %i) ]\n", (int)relative_addr, regnr);
88			}
89	dpavlin	40	/* exit(1); */
90	dpavlin	4	}
91
92			if (writeflag == MEM_READ)
93			memory_writemax64(cpu, data, len, odata);
94
95			return 1;
96			}
97
98
99	dpavlin	22	DEVINIT(sn)
100	dpavlin	4	{
101			char *name2;
102	dpavlin	10	size_t nlen = 55;
103	dpavlin	4	struct sn_data *d = malloc(sizeof(struct sn_data));
104
105			if (d == NULL) {
106			fprintf(stderr, "out of memory\n");
107			exit(1);
108			}
109			memset(d, 0, sizeof(struct sn_data));
110
111	dpavlin	40	INTERRUPT_CONNECT(devinit->interrupt_path, d->irq);
112
113	dpavlin	4	net_generate_unique_mac(devinit->machine, d->macaddr);
114
115	dpavlin	10	name2 = malloc(nlen);
116	dpavlin	4	if (name2 == NULL) {
117			fprintf(stderr, "out of memory in dev_sn_init()\n");
118			exit(1);
119			}
120	dpavlin	10	snprintf(name2, nlen, "%s [%02x:%02x:%02x:%02x:%02x:%02x]",
121			devinit->name, d->macaddr[0], d->macaddr[1], d->macaddr[2],
122	dpavlin	4	d->macaddr[3], d->macaddr[4], d->macaddr[5]);
123
124			memory_device_register(devinit->machine->memory, name2,
125			devinit->addr, DEV_SN_LENGTH,
126	dpavlin	20	dev_sn_access, (void *)d, DM_DEFAULT, NULL);
127	dpavlin	4
128			net_add_nic(devinit->machine->emul->net, d, d->macaddr);
129
130			return 1;
131			}
132