root / hw / pxa2xx_pcmcia.c @ 9e2c1298
History | View | Annotate | Download (5.3 kB)
1 |
/*
|
---|---|
2 |
* Intel XScale PXA255/270 PC Card and CompactFlash Interface.
|
3 |
*
|
4 |
* Copyright (c) 2006 Openedhand Ltd.
|
5 |
* Written by Andrzej Zaborowski <balrog@zabor.org>
|
6 |
*
|
7 |
* This code is licensed under the GPLv2.
|
8 |
*
|
9 |
* Contributions after 2012-01-13 are licensed under the terms of the
|
10 |
* GNU GPL, version 2 or (at your option) any later version.
|
11 |
*/
|
12 |
|
13 |
#include "hw.h" |
14 |
#include "pcmcia.h" |
15 |
#include "pxa.h" |
16 |
|
17 |
|
18 |
struct PXA2xxPCMCIAState {
|
19 |
PCMCIASocket slot; |
20 |
PCMCIACardState *card; |
21 |
MemoryRegion common_iomem; |
22 |
MemoryRegion attr_iomem; |
23 |
MemoryRegion iomem; |
24 |
|
25 |
qemu_irq irq; |
26 |
qemu_irq cd_irq; |
27 |
}; |
28 |
|
29 |
static uint64_t pxa2xx_pcmcia_common_read(void *opaque, |
30 |
hwaddr offset, unsigned size)
|
31 |
{ |
32 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
33 |
|
34 |
if (s->slot.attached) {
|
35 |
return s->card->common_read(s->card->state, offset);
|
36 |
} |
37 |
|
38 |
return 0; |
39 |
} |
40 |
|
41 |
static void pxa2xx_pcmcia_common_write(void *opaque, hwaddr offset, |
42 |
uint64_t value, unsigned size)
|
43 |
{ |
44 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
45 |
|
46 |
if (s->slot.attached) {
|
47 |
s->card->common_write(s->card->state, offset, value); |
48 |
} |
49 |
} |
50 |
|
51 |
static uint64_t pxa2xx_pcmcia_attr_read(void *opaque, |
52 |
hwaddr offset, unsigned size)
|
53 |
{ |
54 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
55 |
|
56 |
if (s->slot.attached) {
|
57 |
return s->card->attr_read(s->card->state, offset);
|
58 |
} |
59 |
|
60 |
return 0; |
61 |
} |
62 |
|
63 |
static void pxa2xx_pcmcia_attr_write(void *opaque, hwaddr offset, |
64 |
uint64_t value, unsigned size)
|
65 |
{ |
66 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
67 |
|
68 |
if (s->slot.attached) {
|
69 |
s->card->attr_write(s->card->state, offset, value); |
70 |
} |
71 |
} |
72 |
|
73 |
static uint64_t pxa2xx_pcmcia_io_read(void *opaque, |
74 |
hwaddr offset, unsigned size)
|
75 |
{ |
76 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
77 |
|
78 |
if (s->slot.attached) {
|
79 |
return s->card->io_read(s->card->state, offset);
|
80 |
} |
81 |
|
82 |
return 0; |
83 |
} |
84 |
|
85 |
static void pxa2xx_pcmcia_io_write(void *opaque, hwaddr offset, |
86 |
uint64_t value, unsigned size)
|
87 |
{ |
88 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
89 |
|
90 |
if (s->slot.attached) {
|
91 |
s->card->io_write(s->card->state, offset, value); |
92 |
} |
93 |
} |
94 |
|
95 |
static const MemoryRegionOps pxa2xx_pcmcia_common_ops = { |
96 |
.read = pxa2xx_pcmcia_common_read, |
97 |
.write = pxa2xx_pcmcia_common_write, |
98 |
.endianness = DEVICE_NATIVE_ENDIAN |
99 |
}; |
100 |
|
101 |
static const MemoryRegionOps pxa2xx_pcmcia_attr_ops = { |
102 |
.read = pxa2xx_pcmcia_attr_read, |
103 |
.write = pxa2xx_pcmcia_attr_write, |
104 |
.endianness = DEVICE_NATIVE_ENDIAN |
105 |
}; |
106 |
|
107 |
static const MemoryRegionOps pxa2xx_pcmcia_io_ops = { |
108 |
.read = pxa2xx_pcmcia_io_read, |
109 |
.write = pxa2xx_pcmcia_io_write, |
110 |
.endianness = DEVICE_NATIVE_ENDIAN |
111 |
}; |
112 |
|
113 |
static void pxa2xx_pcmcia_set_irq(void *opaque, int line, int level) |
114 |
{ |
115 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
116 |
if (!s->irq)
|
117 |
return;
|
118 |
|
119 |
qemu_set_irq(s->irq, level); |
120 |
} |
121 |
|
122 |
PXA2xxPCMCIAState *pxa2xx_pcmcia_init(MemoryRegion *sysmem, |
123 |
hwaddr base) |
124 |
{ |
125 |
PXA2xxPCMCIAState *s; |
126 |
|
127 |
s = (PXA2xxPCMCIAState *) |
128 |
g_malloc0(sizeof(PXA2xxPCMCIAState));
|
129 |
|
130 |
/* Socket I/O Memory Space */
|
131 |
memory_region_init_io(&s->iomem, &pxa2xx_pcmcia_io_ops, s, |
132 |
"pxa2xx-pcmcia-io", 0x04000000); |
133 |
memory_region_add_subregion(sysmem, base | 0x00000000,
|
134 |
&s->iomem); |
135 |
|
136 |
/* Then next 64 MB is reserved */
|
137 |
|
138 |
/* Socket Attribute Memory Space */
|
139 |
memory_region_init_io(&s->attr_iomem, &pxa2xx_pcmcia_attr_ops, s, |
140 |
"pxa2xx-pcmcia-attribute", 0x04000000); |
141 |
memory_region_add_subregion(sysmem, base | 0x08000000,
|
142 |
&s->attr_iomem); |
143 |
|
144 |
/* Socket Common Memory Space */
|
145 |
memory_region_init_io(&s->common_iomem, &pxa2xx_pcmcia_common_ops, s, |
146 |
"pxa2xx-pcmcia-common", 0x04000000); |
147 |
memory_region_add_subregion(sysmem, base | 0x0c000000,
|
148 |
&s->common_iomem); |
149 |
|
150 |
if (base == 0x30000000) |
151 |
s->slot.slot_string = "PXA PC Card Socket 1";
|
152 |
else
|
153 |
s->slot.slot_string = "PXA PC Card Socket 0";
|
154 |
s->slot.irq = qemu_allocate_irqs(pxa2xx_pcmcia_set_irq, s, 1)[0]; |
155 |
pcmcia_socket_register(&s->slot); |
156 |
|
157 |
return s;
|
158 |
} |
159 |
|
160 |
/* Insert a new card into a slot */
|
161 |
int pxa2xx_pcmcia_attach(void *opaque, PCMCIACardState *card) |
162 |
{ |
163 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
164 |
if (s->slot.attached)
|
165 |
return -EEXIST;
|
166 |
|
167 |
if (s->cd_irq) {
|
168 |
qemu_irq_raise(s->cd_irq); |
169 |
} |
170 |
|
171 |
s->card = card; |
172 |
|
173 |
s->slot.attached = 1;
|
174 |
s->card->slot = &s->slot; |
175 |
s->card->attach(s->card->state); |
176 |
|
177 |
return 0; |
178 |
} |
179 |
|
180 |
/* Eject card from the slot */
|
181 |
int pxa2xx_pcmcia_dettach(void *opaque) |
182 |
{ |
183 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
184 |
if (!s->slot.attached)
|
185 |
return -ENOENT;
|
186 |
|
187 |
s->card->detach(s->card->state); |
188 |
s->card->slot = NULL;
|
189 |
s->card = NULL;
|
190 |
|
191 |
s->slot.attached = 0;
|
192 |
|
193 |
if (s->irq)
|
194 |
qemu_irq_lower(s->irq); |
195 |
if (s->cd_irq)
|
196 |
qemu_irq_lower(s->cd_irq); |
197 |
|
198 |
return 0; |
199 |
} |
200 |
|
201 |
/* Who to notify on card events */
|
202 |
void pxa2xx_pcmcia_set_irq_cb(void *opaque, qemu_irq irq, qemu_irq cd_irq) |
203 |
{ |
204 |
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
205 |
s->irq = irq; |
206 |
s->cd_irq = cd_irq; |
207 |
} |