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/hw.h" 14 #include "hw/sysbus.h" 15 #include "hw/pcmcia.h" 16 #include "hw/arm/pxa.h" 17 18 #define TYPE_PXA2XX_PCMCIA "pxa2xx-pcmcia" 19 #define PXA2XX_PCMCIA(obj) \ 20 OBJECT_CHECK(PXA2xxPCMCIAState, obj, TYPE_PXA2XX_PCMCIA) 21 22 struct PXA2xxPCMCIAState { 23 SysBusDevice parent_obj; 24 25 PCMCIASocket slot; 26 MemoryRegion container_mem; 27 MemoryRegion common_iomem; 28 MemoryRegion attr_iomem; 29 MemoryRegion iomem; 30 31 qemu_irq irq; 32 qemu_irq cd_irq; 33 34 PCMCIACardState *card; 35 }; 36 37 static uint64_t pxa2xx_pcmcia_common_read(void *opaque, 38 hwaddr offset, unsigned size) 39 { 40 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 41 PCMCIACardClass *pcc; 42 43 if (s->slot.attached) { 44 pcc = PCMCIA_CARD_GET_CLASS(s->card); 45 return pcc->common_read(s->card, offset); 46 } 47 48 return 0; 49 } 50 51 static void pxa2xx_pcmcia_common_write(void *opaque, hwaddr offset, 52 uint64_t value, unsigned size) 53 { 54 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 55 PCMCIACardClass *pcc; 56 57 if (s->slot.attached) { 58 pcc = PCMCIA_CARD_GET_CLASS(s->card); 59 pcc->common_write(s->card, offset, value); 60 } 61 } 62 63 static uint64_t pxa2xx_pcmcia_attr_read(void *opaque, 64 hwaddr offset, unsigned size) 65 { 66 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 67 PCMCIACardClass *pcc; 68 69 if (s->slot.attached) { 70 pcc = PCMCIA_CARD_GET_CLASS(s->card); 71 return pcc->attr_read(s->card, offset); 72 } 73 74 return 0; 75 } 76 77 static void pxa2xx_pcmcia_attr_write(void *opaque, hwaddr offset, 78 uint64_t value, unsigned size) 79 { 80 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 81 PCMCIACardClass *pcc; 82 83 if (s->slot.attached) { 84 pcc = PCMCIA_CARD_GET_CLASS(s->card); 85 pcc->attr_write(s->card, offset, value); 86 } 87 } 88 89 static uint64_t pxa2xx_pcmcia_io_read(void *opaque, 90 hwaddr offset, unsigned size) 91 { 92 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 93 PCMCIACardClass *pcc; 94 95 if (s->slot.attached) { 96 pcc = PCMCIA_CARD_GET_CLASS(s->card); 97 return pcc->io_read(s->card, offset); 98 } 99 100 return 0; 101 } 102 103 static void pxa2xx_pcmcia_io_write(void *opaque, hwaddr offset, 104 uint64_t value, unsigned size) 105 { 106 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 107 PCMCIACardClass *pcc; 108 109 if (s->slot.attached) { 110 pcc = PCMCIA_CARD_GET_CLASS(s->card); 111 pcc->io_write(s->card, offset, value); 112 } 113 } 114 115 static const MemoryRegionOps pxa2xx_pcmcia_common_ops = { 116 .read = pxa2xx_pcmcia_common_read, 117 .write = pxa2xx_pcmcia_common_write, 118 .endianness = DEVICE_NATIVE_ENDIAN 119 }; 120 121 static const MemoryRegionOps pxa2xx_pcmcia_attr_ops = { 122 .read = pxa2xx_pcmcia_attr_read, 123 .write = pxa2xx_pcmcia_attr_write, 124 .endianness = DEVICE_NATIVE_ENDIAN 125 }; 126 127 static const MemoryRegionOps pxa2xx_pcmcia_io_ops = { 128 .read = pxa2xx_pcmcia_io_read, 129 .write = pxa2xx_pcmcia_io_write, 130 .endianness = DEVICE_NATIVE_ENDIAN 131 }; 132 133 static void pxa2xx_pcmcia_set_irq(void *opaque, int line, int level) 134 { 135 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 136 if (!s->irq) 137 return; 138 139 qemu_set_irq(s->irq, level); 140 } 141 142 PXA2xxPCMCIAState *pxa2xx_pcmcia_init(MemoryRegion *sysmem, 143 hwaddr base) 144 { 145 DeviceState *dev; 146 PXA2xxPCMCIAState *s; 147 148 dev = qdev_create(NULL, TYPE_PXA2XX_PCMCIA); 149 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base); 150 s = PXA2XX_PCMCIA(dev); 151 152 if (base == 0x30000000) { 153 s->slot.slot_string = "PXA PC Card Socket 1"; 154 } else { 155 s->slot.slot_string = "PXA PC Card Socket 0"; 156 } 157 158 qdev_init_nofail(dev); 159 160 return s; 161 } 162 163 static void pxa2xx_pcmcia_realize(DeviceState *dev, Error **errp) 164 { 165 PXA2xxPCMCIAState *s = PXA2XX_PCMCIA(dev); 166 167 pcmcia_socket_register(&s->slot); 168 } 169 170 static void pxa2xx_pcmcia_initfn(Object *obj) 171 { 172 SysBusDevice *sbd = SYS_BUS_DEVICE(obj); 173 PXA2xxPCMCIAState *s = PXA2XX_PCMCIA(obj); 174 175 memory_region_init(&s->container_mem, obj, "container", 0x10000000); 176 sysbus_init_mmio(sbd, &s->container_mem); 177 178 /* Socket I/O Memory Space */ 179 memory_region_init_io(&s->iomem, NULL, &pxa2xx_pcmcia_io_ops, s, 180 "pxa2xx-pcmcia-io", 0x04000000); 181 memory_region_add_subregion(&s->container_mem, 0x00000000, 182 &s->iomem); 183 184 /* Then next 64 MB is reserved */ 185 186 /* Socket Attribute Memory Space */ 187 memory_region_init_io(&s->attr_iomem, NULL, &pxa2xx_pcmcia_attr_ops, s, 188 "pxa2xx-pcmcia-attribute", 0x04000000); 189 memory_region_add_subregion(&s->container_mem, 0x08000000, 190 &s->attr_iomem); 191 192 /* Socket Common Memory Space */ 193 memory_region_init_io(&s->common_iomem, NULL, &pxa2xx_pcmcia_common_ops, s, 194 "pxa2xx-pcmcia-common", 0x04000000); 195 memory_region_add_subregion(&s->container_mem, 0x0c000000, 196 &s->common_iomem); 197 198 s->slot.irq = qemu_allocate_irqs(pxa2xx_pcmcia_set_irq, s, 1)[0]; 199 200 object_property_add_link(obj, "card", TYPE_PCMCIA_CARD, 201 (Object **)&s->card, NULL); 202 } 203 204 /* Insert a new card into a slot */ 205 int pxa2xx_pcmcia_attach(void *opaque, PCMCIACardState *card) 206 { 207 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 208 PCMCIACardClass *pcc; 209 210 if (s->slot.attached) { 211 return -EEXIST; 212 } 213 214 if (s->cd_irq) { 215 qemu_irq_raise(s->cd_irq); 216 } 217 218 s->card = card; 219 pcc = PCMCIA_CARD_GET_CLASS(s->card); 220 221 s->slot.attached = true; 222 s->card->slot = &s->slot; 223 pcc->attach(s->card); 224 225 return 0; 226 } 227 228 /* Eject card from the slot */ 229 int pxa2xx_pcmcia_detach(void *opaque) 230 { 231 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 232 PCMCIACardClass *pcc; 233 234 if (!s->slot.attached) { 235 return -ENOENT; 236 } 237 238 pcc = PCMCIA_CARD_GET_CLASS(s->card); 239 pcc->detach(s->card); 240 s->card->slot = NULL; 241 s->card = NULL; 242 243 s->slot.attached = false; 244 245 if (s->irq) { 246 qemu_irq_lower(s->irq); 247 } 248 if (s->cd_irq) { 249 qemu_irq_lower(s->cd_irq); 250 } 251 252 return 0; 253 } 254 255 /* Who to notify on card events */ 256 void pxa2xx_pcmcia_set_irq_cb(void *opaque, qemu_irq irq, qemu_irq cd_irq) 257 { 258 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 259 s->irq = irq; 260 s->cd_irq = cd_irq; 261 } 262 263 static void pxa2xx_pcmcia_class_init(ObjectClass *oc, void *data) 264 { 265 DeviceClass *dc = DEVICE_CLASS(oc); 266 267 dc->realize = pxa2xx_pcmcia_realize; 268 } 269 270 static const TypeInfo pxa2xx_pcmcia_type_info = { 271 .name = TYPE_PXA2XX_PCMCIA, 272 .parent = TYPE_SYS_BUS_DEVICE, 273 .instance_size = sizeof(PXA2xxPCMCIAState), 274 .instance_init = pxa2xx_pcmcia_initfn, 275 .class_init = pxa2xx_pcmcia_class_init, 276 }; 277 278 static void pxa2xx_pcmcia_register_types(void) 279 { 280 type_register_static(&pxa2xx_pcmcia_type_info); 281 } 282 283 type_init(pxa2xx_pcmcia_register_types) 284