aboutsummaryrefslogtreecommitdiff
path: root/hw/pxa2xx_pcmcia.c
blob: 74c6817baffea1d8ce5510cc80dbc675314fb71b (plain)
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
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
/*
 * Intel XScale PXA255/270 PC Card and CompactFlash Interface.
 *
 * Copyright (c) 2006 Openedhand Ltd.
 * Written by Andrzej Zaborowski <balrog@zabor.org>
 *
 * This code is licensed under the GPLv2.
 */

#include "hw.h"
#include "pcmcia.h"
#include "pxa.h"

struct PXA2xxPCMCIAState {
    PCMCIASocket slot;
    PCMCIACardState *card;

    qemu_irq irq;
    qemu_irq cd_irq;
};

static uint32_t pxa2xx_pcmcia_common_read(void *opaque,
                target_phys_addr_t offset)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;

    if (s->slot.attached) {
        return s->card->common_read(s->card->state, offset);
    }

    return 0;
}

static void pxa2xx_pcmcia_common_write(void *opaque,
                target_phys_addr_t offset, uint32_t value)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;

    if (s->slot.attached) {
        s->card->common_write(s->card->state, offset, value);
    }
}

static uint32_t pxa2xx_pcmcia_attr_read(void *opaque,
                target_phys_addr_t offset)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;

    if (s->slot.attached) {
        return s->card->attr_read(s->card->state, offset);
    }

    return 0;
}

static void pxa2xx_pcmcia_attr_write(void *opaque,
                target_phys_addr_t offset, uint32_t value)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;

    if (s->slot.attached) {
        s->card->attr_write(s->card->state, offset, value);
    }
}

static uint32_t pxa2xx_pcmcia_io_read(void *opaque,
                target_phys_addr_t offset)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;

    if (s->slot.attached) {
        return s->card->io_read(s->card->state, offset);
    }

    return 0;
}

static void pxa2xx_pcmcia_io_write(void *opaque,
                target_phys_addr_t offset, uint32_t value)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;

    if (s->slot.attached) {
        s->card->io_write(s->card->state, offset, value);
    }
}

static CPUReadMemoryFunc * const pxa2xx_pcmcia_common_readfn[] = {
    pxa2xx_pcmcia_common_read,
    pxa2xx_pcmcia_common_read,
    pxa2xx_pcmcia_common_read,
};

static CPUWriteMemoryFunc * const pxa2xx_pcmcia_common_writefn[] = {
    pxa2xx_pcmcia_common_write,
    pxa2xx_pcmcia_common_write,
    pxa2xx_pcmcia_common_write,
};

static CPUReadMemoryFunc * const pxa2xx_pcmcia_attr_readfn[] = {
    pxa2xx_pcmcia_attr_read,
    pxa2xx_pcmcia_attr_read,
    pxa2xx_pcmcia_attr_read,
};

static CPUWriteMemoryFunc * const pxa2xx_pcmcia_attr_writefn[] = {
    pxa2xx_pcmcia_attr_write,
    pxa2xx_pcmcia_attr_write,
    pxa2xx_pcmcia_attr_write,
};

static CPUReadMemoryFunc * const pxa2xx_pcmcia_io_readfn[] = {
    pxa2xx_pcmcia_io_read,
    pxa2xx_pcmcia_io_read,
    pxa2xx_pcmcia_io_read,
};

static CPUWriteMemoryFunc * const pxa2xx_pcmcia_io_writefn[] = {
    pxa2xx_pcmcia_io_write,
    pxa2xx_pcmcia_io_write,
    pxa2xx_pcmcia_io_write,
};

static void pxa2xx_pcmcia_set_irq(void *opaque, int line, int level)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
    if (!s->irq)
        return;

    qemu_set_irq(s->irq, level);
}

PXA2xxPCMCIAState *pxa2xx_pcmcia_init(target_phys_addr_t base)
{
    int iomemtype;
    PXA2xxPCMCIAState *s;

    s = (PXA2xxPCMCIAState *)
            g_malloc0(sizeof(PXA2xxPCMCIAState));

    /* Socket I/O Memory Space */
    iomemtype = cpu_register_io_memory(pxa2xx_pcmcia_io_readfn,
                    pxa2xx_pcmcia_io_writefn, s, DEVICE_NATIVE_ENDIAN);
    cpu_register_physical_memory(base | 0x00000000, 0x04000000, iomemtype);

    /* Then next 64 MB is reserved */

    /* Socket Attribute Memory Space */
    iomemtype = cpu_register_io_memory(pxa2xx_pcmcia_attr_readfn,
                    pxa2xx_pcmcia_attr_writefn, s, DEVICE_NATIVE_ENDIAN);
    cpu_register_physical_memory(base | 0x08000000, 0x04000000, iomemtype);

    /* Socket Common Memory Space */
    iomemtype = cpu_register_io_memory(pxa2xx_pcmcia_common_readfn,
                    pxa2xx_pcmcia_common_writefn, s, DEVICE_NATIVE_ENDIAN);
    cpu_register_physical_memory(base | 0x0c000000, 0x04000000, iomemtype);

    if (base == 0x30000000)
        s->slot.slot_string = "PXA PC Card Socket 1";
    else
        s->slot.slot_string = "PXA PC Card Socket 0";
    s->slot.irq = qemu_allocate_irqs(pxa2xx_pcmcia_set_irq, s, 1)[0];
    pcmcia_socket_register(&s->slot);

    return s;
}

/* Insert a new card into a slot */
int pxa2xx_pcmcia_attach(void *opaque, PCMCIACardState *card)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
    if (s->slot.attached)
        return -EEXIST;

    if (s->cd_irq) {
        qemu_irq_raise(s->cd_irq);
    }

    s->card = card;

    s->slot.attached = 1;
    s->card->slot = &s->slot;
    s->card->attach(s->card->state);

    return 0;
}

/* Eject card from the slot */
int pxa2xx_pcmcia_dettach(void *opaque)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
    if (!s->slot.attached)
        return -ENOENT;

    s->card->detach(s->card->state);
    s->card->slot = NULL;
    s->card = NULL;

    s->slot.attached = 0;

    if (s->irq)
        qemu_irq_lower(s->irq);
    if (s->cd_irq)
        qemu_irq_lower(s->cd_irq);

    return 0;
}

/* Who to notify on card events */
void pxa2xx_pcmcia_set_irq_cb(void *opaque, qemu_irq irq, qemu_irq cd_irq)
{
    PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
    s->irq = irq;
    s->cd_irq = cd_irq;
}