1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* $Id: isa_gen_idectrl.c,v 1.26 2009-06-03 11:34:07 vrsieh Exp $
*
* Copyright (C) 2007-2009 FAUmachine Team <info@faumachine.org>.
* This program is free software. You can redistribute it and/or modify it
* under the terms of the GNU General Public License, either version 2 of
* the License, or (at your option) any later version. See COPYING.
*/
#include "config.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include "fixme.h"
#include "isa_gen_idectrl.h"
#define COMP "isa_gen_idectrl"
struct cpssp {
/*
* Config
*/
unsigned int irq;
unsigned int port_0_7;
unsigned int port_8;
/*
* Signals
*/
struct sig_boolean *sig_p5V;
struct sig_boolean *sig_n_reset;
struct sig_isa_bus_main *sig_isa_bus;
struct sig_boolean_or *sig_isa_bus_irq;
struct sig_ide_bus *sig_ide_bus;
/*
* State
*/
};
/*
* IDE Bus Interface
*/
static void
isa_ide_controller_irq_set(void *_cpssp, unsigned int val)
{
struct cpssp *cpssp = (struct cpssp *) _cpssp;
sig_boolean_or_set(cpssp->sig_isa_bus_irq, cpssp, val);
}
static __attribute__((__noreturn__)) void
isa_ide_controller_dmarq_set(void *_cpssp, unsigned int val)
{
assert(0); /* No DMA capable device. */
}
/*
* ISA Bus Interface
*/
static int
isa_ide_controller_inb(void *_cpssp, unsigned char *valp, unsigned short port)
{
struct cpssp *cpssp = (struct cpssp *) _cpssp;
uint16_t val16;
if (cpssp->port_0_7 < port && port < cpssp->port_0_7 + 8) {
sig_ide_bus_inw(cpssp->sig_ide_bus,
port - cpssp->port_0_7, &val16);
*valp = val16;
return 0;
} else if (cpssp->port_8 == port) {
sig_ide_bus_inw(cpssp->sig_ide_bus,
port - cpssp->port_8 + 8, &val16);
*valp = val16;
return 0;
}
return -1;
}
static int
isa_ide_controller_inw(void *_cpssp, unsigned short *valp, unsigned short port)
{
struct cpssp *cpssp = (struct cpssp *) _cpssp;
if (cpssp->port_0_7 == port) {
sig_ide_bus_inw(cpssp->sig_ide_bus, 0, valp);
return 0;
}
return -1;
}
static int
isa_ide_controller_outb(void *_cpssp, unsigned char val, unsigned short port)
{
struct cpssp *cpssp = (struct cpssp *) _cpssp;
if (cpssp->port_0_7 < port && port < cpssp->port_0_7 + 8) {
sig_ide_bus_outw(cpssp->sig_ide_bus,
port - cpssp->port_0_7, val);
return 0;
} else if (cpssp->port_8 == port) {
sig_ide_bus_outw(cpssp->sig_ide_bus,
port - cpssp->port_8 + 8, val);
return 0;
}
return -1;
}
static int
isa_ide_controller_outw(void *_cpssp, unsigned short val, unsigned short port)
{
struct cpssp *cpssp = (struct cpssp *) _cpssp;
if (cpssp->port_0_7 == port) {
sig_ide_bus_outw(cpssp->sig_ide_bus, 0, val);
return 0;
}
return -1;
}
void *
isa_gen_idectrl_create(
const char *name,
const char *irq,
const char *ioaddr_1,
const char *ioaddr_8,
struct sig_manage *port_manage,
struct sig_isa_bus *port_isa,
struct sig_ide_bus *port_ide
)
{
static const struct sig_isa_bus_main_funcs isa_bus_funcs = {
.inb = isa_ide_controller_inb,
.inw = isa_ide_controller_inw,
.outb = isa_ide_controller_outb,
.outw = isa_ide_controller_outw,
};
static const struct sig_ide_bus_controller_funcs ide_bus_funcs = {
.irq = isa_ide_controller_irq_set,
.dmarq_set = isa_ide_controller_dmarq_set,
};
struct cpssp *cpssp;
cpssp = malloc(sizeof(*cpssp));
assert(cpssp);
/*
* Config
*/
cpssp->irq = strtoul(irq, NULL, 0);
cpssp->port_0_7 = strtoul(ioaddr_8, NULL, 0);
cpssp->port_8 = strtoul(ioaddr_1, NULL, 0);
/*
* Signals
*/
cpssp->sig_p5V = port_isa->p5V;
/* Connect to sig_p5V - FIXME */
cpssp->sig_n_reset = port_isa->n_reset;
/* Connect to sig_n_reset - FIXME */
cpssp->sig_isa_bus = port_isa->main;
sig_isa_bus_main_connect(port_isa->main, cpssp, &isa_bus_funcs);
switch (cpssp->irq) {
case 0x9: cpssp->sig_isa_bus_irq = port_isa->int9; break;
case 0xa: cpssp->sig_isa_bus_irq = port_isa->int10; break;
case 0xb: cpssp->sig_isa_bus_irq = port_isa->int11; break;
case 0xc: cpssp->sig_isa_bus_irq = port_isa->int12; break;
default: assert(0); /* Shouldn't happen. */
}
sig_boolean_or_connect_out(cpssp->sig_isa_bus_irq, cpssp, 0);
cpssp->sig_ide_bus = port_ide;
sig_ide_bus_connect_controller(port_ide, cpssp, &ide_bus_funcs);
/*
* State
*/
/* Nothing... */
return cpssp;
}
void
isa_gen_idectrl_destroy(void *_cpssp)
{
struct cpssp *cpssp = _cpssp;
free(cpssp);
}
|
