root / hw / misc / pxa2xx_pcmcia.c @ a8aec295
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1 | a171fe39 | balrog | /*
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2 | a171fe39 | balrog | * Intel XScale PXA255/270 PC Card and CompactFlash Interface.
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3 | a171fe39 | balrog | *
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4 | a171fe39 | balrog | * Copyright (c) 2006 Openedhand Ltd.
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5 | a171fe39 | balrog | * Written by Andrzej Zaborowski <balrog@zabor.org>
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6 | a171fe39 | balrog | *
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7 | a171fe39 | balrog | * This code is licensed under the GPLv2.
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8 | 6b620ca3 | Paolo Bonzini | *
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9 | 6b620ca3 | Paolo Bonzini | * Contributions after 2012-01-13 are licensed under the terms of the
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10 | 6b620ca3 | Paolo Bonzini | * GNU GPL, version 2 or (at your option) any later version.
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11 | a171fe39 | balrog | */
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12 | a171fe39 | balrog | |
13 | 83c9f4ca | Paolo Bonzini | #include "hw/hw.h" |
14 | 83c9f4ca | Paolo Bonzini | #include "hw/pcmcia.h" |
15 | 0d09e41a | Paolo Bonzini | #include "hw/arm/pxa.h" |
16 | a171fe39 | balrog | |
17 | 4beeaa71 | Benoît Canet | |
18 | bc24a225 | Paul Brook | struct PXA2xxPCMCIAState {
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19 | bc24a225 | Paul Brook | PCMCIASocket slot; |
20 | bc24a225 | Paul Brook | PCMCIACardState *card; |
21 | 354a8c06 | Benoît Canet | MemoryRegion common_iomem; |
22 | 4beeaa71 | Benoît Canet | MemoryRegion attr_iomem; |
23 | 59aee13c | Benoît Canet | MemoryRegion iomem; |
24 | a171fe39 | balrog | |
25 | a171fe39 | balrog | qemu_irq irq; |
26 | a171fe39 | balrog | qemu_irq cd_irq; |
27 | a171fe39 | balrog | }; |
28 | a171fe39 | balrog | |
29 | 354a8c06 | Benoît Canet | static uint64_t pxa2xx_pcmcia_common_read(void *opaque, |
30 | a8170e5e | Avi Kivity | hwaddr offset, unsigned size)
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31 | a171fe39 | balrog | { |
32 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
33 | a171fe39 | balrog | |
34 | a171fe39 | balrog | if (s->slot.attached) {
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35 | a171fe39 | balrog | return s->card->common_read(s->card->state, offset);
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36 | a171fe39 | balrog | } |
37 | a171fe39 | balrog | |
38 | a171fe39 | balrog | return 0; |
39 | a171fe39 | balrog | } |
40 | a171fe39 | balrog | |
41 | a8170e5e | Avi Kivity | static void pxa2xx_pcmcia_common_write(void *opaque, hwaddr offset, |
42 | 354a8c06 | Benoît Canet | uint64_t value, unsigned size)
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43 | a171fe39 | balrog | { |
44 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
45 | a171fe39 | balrog | |
46 | a171fe39 | balrog | if (s->slot.attached) {
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47 | a171fe39 | balrog | s->card->common_write(s->card->state, offset, value); |
48 | a171fe39 | balrog | } |
49 | a171fe39 | balrog | } |
50 | a171fe39 | balrog | |
51 | 4beeaa71 | Benoît Canet | static uint64_t pxa2xx_pcmcia_attr_read(void *opaque, |
52 | a8170e5e | Avi Kivity | hwaddr offset, unsigned size)
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53 | a171fe39 | balrog | { |
54 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
55 | a171fe39 | balrog | |
56 | a171fe39 | balrog | if (s->slot.attached) {
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57 | a171fe39 | balrog | return s->card->attr_read(s->card->state, offset);
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58 | a171fe39 | balrog | } |
59 | a171fe39 | balrog | |
60 | a171fe39 | balrog | return 0; |
61 | a171fe39 | balrog | } |
62 | a171fe39 | balrog | |
63 | a8170e5e | Avi Kivity | static void pxa2xx_pcmcia_attr_write(void *opaque, hwaddr offset, |
64 | 4beeaa71 | Benoît Canet | uint64_t value, unsigned size)
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65 | a171fe39 | balrog | { |
66 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
67 | a171fe39 | balrog | |
68 | a171fe39 | balrog | if (s->slot.attached) {
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69 | a171fe39 | balrog | s->card->attr_write(s->card->state, offset, value); |
70 | a171fe39 | balrog | } |
71 | a171fe39 | balrog | } |
72 | a171fe39 | balrog | |
73 | 59aee13c | Benoît Canet | static uint64_t pxa2xx_pcmcia_io_read(void *opaque, |
74 | a8170e5e | Avi Kivity | hwaddr offset, unsigned size)
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75 | a171fe39 | balrog | { |
76 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
77 | a171fe39 | balrog | |
78 | a171fe39 | balrog | if (s->slot.attached) {
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79 | a171fe39 | balrog | return s->card->io_read(s->card->state, offset);
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80 | a171fe39 | balrog | } |
81 | a171fe39 | balrog | |
82 | a171fe39 | balrog | return 0; |
83 | a171fe39 | balrog | } |
84 | a171fe39 | balrog | |
85 | a8170e5e | Avi Kivity | static void pxa2xx_pcmcia_io_write(void *opaque, hwaddr offset, |
86 | 59aee13c | Benoît Canet | uint64_t value, unsigned size)
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87 | a171fe39 | balrog | { |
88 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
89 | a171fe39 | balrog | |
90 | a171fe39 | balrog | if (s->slot.attached) {
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91 | a171fe39 | balrog | s->card->io_write(s->card->state, offset, value); |
92 | a171fe39 | balrog | } |
93 | a171fe39 | balrog | } |
94 | a171fe39 | balrog | |
95 | 354a8c06 | Benoît Canet | static const MemoryRegionOps pxa2xx_pcmcia_common_ops = { |
96 | 354a8c06 | Benoît Canet | .read = pxa2xx_pcmcia_common_read, |
97 | 354a8c06 | Benoît Canet | .write = pxa2xx_pcmcia_common_write, |
98 | 354a8c06 | Benoît Canet | .endianness = DEVICE_NATIVE_ENDIAN |
99 | a171fe39 | balrog | }; |
100 | a171fe39 | balrog | |
101 | 4beeaa71 | Benoît Canet | static const MemoryRegionOps pxa2xx_pcmcia_attr_ops = { |
102 | 4beeaa71 | Benoît Canet | .read = pxa2xx_pcmcia_attr_read, |
103 | 4beeaa71 | Benoît Canet | .write = pxa2xx_pcmcia_attr_write, |
104 | 4beeaa71 | Benoît Canet | .endianness = DEVICE_NATIVE_ENDIAN |
105 | a171fe39 | balrog | }; |
106 | a171fe39 | balrog | |
107 | 59aee13c | Benoît Canet | static const MemoryRegionOps pxa2xx_pcmcia_io_ops = { |
108 | 59aee13c | Benoît Canet | .read = pxa2xx_pcmcia_io_read, |
109 | 59aee13c | Benoît Canet | .write = pxa2xx_pcmcia_io_write, |
110 | 59aee13c | Benoît Canet | .endianness = DEVICE_NATIVE_ENDIAN |
111 | a171fe39 | balrog | }; |
112 | a171fe39 | balrog | |
113 | a171fe39 | balrog | static void pxa2xx_pcmcia_set_irq(void *opaque, int line, int level) |
114 | a171fe39 | balrog | { |
115 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
116 | a171fe39 | balrog | if (!s->irq)
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117 | a171fe39 | balrog | return;
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118 | a171fe39 | balrog | |
119 | a171fe39 | balrog | qemu_set_irq(s->irq, level); |
120 | a171fe39 | balrog | } |
121 | a171fe39 | balrog | |
122 | 354a8c06 | Benoît Canet | PXA2xxPCMCIAState *pxa2xx_pcmcia_init(MemoryRegion *sysmem, |
123 | a8170e5e | Avi Kivity | hwaddr base) |
124 | a171fe39 | balrog | { |
125 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s; |
126 | a171fe39 | balrog | |
127 | bc24a225 | Paul Brook | s = (PXA2xxPCMCIAState *) |
128 | 7267c094 | Anthony Liguori | g_malloc0(sizeof(PXA2xxPCMCIAState));
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129 | a171fe39 | balrog | |
130 | a171fe39 | balrog | /* Socket I/O Memory Space */
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131 | 59aee13c | Benoît Canet | memory_region_init_io(&s->iomem, &pxa2xx_pcmcia_io_ops, s, |
132 | 59aee13c | Benoît Canet | "pxa2xx-pcmcia-io", 0x04000000); |
133 | 59aee13c | Benoît Canet | memory_region_add_subregion(sysmem, base | 0x00000000,
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134 | 59aee13c | Benoît Canet | &s->iomem); |
135 | a171fe39 | balrog | |
136 | a171fe39 | balrog | /* Then next 64 MB is reserved */
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137 | a171fe39 | balrog | |
138 | a171fe39 | balrog | /* Socket Attribute Memory Space */
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139 | 4beeaa71 | Benoît Canet | memory_region_init_io(&s->attr_iomem, &pxa2xx_pcmcia_attr_ops, s, |
140 | 4beeaa71 | Benoît Canet | "pxa2xx-pcmcia-attribute", 0x04000000); |
141 | 4beeaa71 | Benoît Canet | memory_region_add_subregion(sysmem, base | 0x08000000,
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142 | 4beeaa71 | Benoît Canet | &s->attr_iomem); |
143 | a171fe39 | balrog | |
144 | a171fe39 | balrog | /* Socket Common Memory Space */
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145 | 354a8c06 | Benoît Canet | memory_region_init_io(&s->common_iomem, &pxa2xx_pcmcia_common_ops, s, |
146 | 354a8c06 | Benoît Canet | "pxa2xx-pcmcia-common", 0x04000000); |
147 | 354a8c06 | Benoît Canet | memory_region_add_subregion(sysmem, base | 0x0c000000,
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148 | 354a8c06 | Benoît Canet | &s->common_iomem); |
149 | a171fe39 | balrog | |
150 | a171fe39 | balrog | if (base == 0x30000000) |
151 | a171fe39 | balrog | s->slot.slot_string = "PXA PC Card Socket 1";
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152 | a171fe39 | balrog | else
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153 | a171fe39 | balrog | s->slot.slot_string = "PXA PC Card Socket 0";
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154 | a171fe39 | balrog | s->slot.irq = qemu_allocate_irqs(pxa2xx_pcmcia_set_irq, s, 1)[0]; |
155 | a171fe39 | balrog | pcmcia_socket_register(&s->slot); |
156 | 3f582262 | balrog | |
157 | a171fe39 | balrog | return s;
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158 | a171fe39 | balrog | } |
159 | a171fe39 | balrog | |
160 | a171fe39 | balrog | /* Insert a new card into a slot */
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161 | bc24a225 | Paul Brook | int pxa2xx_pcmcia_attach(void *opaque, PCMCIACardState *card) |
162 | a171fe39 | balrog | { |
163 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
164 | a171fe39 | balrog | if (s->slot.attached)
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165 | a171fe39 | balrog | return -EEXIST;
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166 | a171fe39 | balrog | |
167 | a171fe39 | balrog | if (s->cd_irq) {
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168 | a171fe39 | balrog | qemu_irq_raise(s->cd_irq); |
169 | a171fe39 | balrog | } |
170 | a171fe39 | balrog | |
171 | a171fe39 | balrog | s->card = card; |
172 | a171fe39 | balrog | |
173 | a171fe39 | balrog | s->slot.attached = 1;
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174 | a171fe39 | balrog | s->card->slot = &s->slot; |
175 | a171fe39 | balrog | s->card->attach(s->card->state); |
176 | a171fe39 | balrog | |
177 | a171fe39 | balrog | return 0; |
178 | a171fe39 | balrog | } |
179 | a171fe39 | balrog | |
180 | a171fe39 | balrog | /* Eject card from the slot */
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181 | a171fe39 | balrog | int pxa2xx_pcmcia_dettach(void *opaque) |
182 | a171fe39 | balrog | { |
183 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
184 | a171fe39 | balrog | if (!s->slot.attached)
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185 | a171fe39 | balrog | return -ENOENT;
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186 | a171fe39 | balrog | |
187 | a171fe39 | balrog | s->card->detach(s->card->state); |
188 | b9d38e95 | Blue Swirl | s->card->slot = NULL;
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189 | b9d38e95 | Blue Swirl | s->card = NULL;
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190 | a171fe39 | balrog | |
191 | a171fe39 | balrog | s->slot.attached = 0;
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192 | a171fe39 | balrog | |
193 | a171fe39 | balrog | if (s->irq)
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194 | a171fe39 | balrog | qemu_irq_lower(s->irq); |
195 | a171fe39 | balrog | if (s->cd_irq)
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196 | a171fe39 | balrog | qemu_irq_lower(s->cd_irq); |
197 | a171fe39 | balrog | |
198 | a171fe39 | balrog | return 0; |
199 | a171fe39 | balrog | } |
200 | a171fe39 | balrog | |
201 | a171fe39 | balrog | /* Who to notify on card events */
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202 | a171fe39 | balrog | void pxa2xx_pcmcia_set_irq_cb(void *opaque, qemu_irq irq, qemu_irq cd_irq) |
203 | a171fe39 | balrog | { |
204 | bc24a225 | Paul Brook | PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; |
205 | a171fe39 | balrog | s->irq = irq; |
206 | a171fe39 | balrog | s->cd_irq = cd_irq; |
207 | a171fe39 | balrog | } |