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 qdev_init_nofail(dev); 153 154 return s; 155 } 156 157 static void pxa2xx_pcmcia_initfn(Object *obj) 158 { 159 SysBusDevice *sbd = SYS_BUS_DEVICE(obj); 160 PXA2xxPCMCIAState *s = PXA2XX_PCMCIA(obj); 161 162 memory_region_init(&s->container_mem, obj, "container", 0x10000000); 163 sysbus_init_mmio(sbd, &s->container_mem); 164 165 /* Socket I/O Memory Space */ 166 memory_region_init_io(&s->iomem, obj, &pxa2xx_pcmcia_io_ops, s, 167 "pxa2xx-pcmcia-io", 0x04000000); 168 memory_region_add_subregion(&s->container_mem, 0x00000000, 169 &s->iomem); 170 171 /* Then next 64 MB is reserved */ 172 173 /* Socket Attribute Memory Space */ 174 memory_region_init_io(&s->attr_iomem, obj, &pxa2xx_pcmcia_attr_ops, s, 175 "pxa2xx-pcmcia-attribute", 0x04000000); 176 memory_region_add_subregion(&s->container_mem, 0x08000000, 177 &s->attr_iomem); 178 179 /* Socket Common Memory Space */ 180 memory_region_init_io(&s->common_iomem, obj, &pxa2xx_pcmcia_common_ops, s, 181 "pxa2xx-pcmcia-common", 0x04000000); 182 memory_region_add_subregion(&s->container_mem, 0x0c000000, 183 &s->common_iomem); 184 185 s->slot.irq = qemu_allocate_irq(pxa2xx_pcmcia_set_irq, s, 0); 186 187 object_property_add_link(obj, "card", TYPE_PCMCIA_CARD, 188 (Object **)&s->card, 189 NULL, /* read-only property */ 190 0, NULL); 191 } 192 193 /* Insert a new card into a slot */ 194 int pxa2xx_pcmcia_attach(void *opaque, PCMCIACardState *card) 195 { 196 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 197 PCMCIACardClass *pcc; 198 199 if (s->slot.attached) { 200 return -EEXIST; 201 } 202 203 if (s->cd_irq) { 204 qemu_irq_raise(s->cd_irq); 205 } 206 207 s->card = card; 208 pcc = PCMCIA_CARD_GET_CLASS(s->card); 209 210 s->slot.attached = true; 211 s->card->slot = &s->slot; 212 pcc->attach(s->card); 213 214 return 0; 215 } 216 217 /* Eject card from the slot */ 218 int pxa2xx_pcmcia_detach(void *opaque) 219 { 220 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 221 PCMCIACardClass *pcc; 222 223 if (!s->slot.attached) { 224 return -ENOENT; 225 } 226 227 pcc = PCMCIA_CARD_GET_CLASS(s->card); 228 pcc->detach(s->card); 229 s->card->slot = NULL; 230 s->card = NULL; 231 232 s->slot.attached = false; 233 234 if (s->irq) { 235 qemu_irq_lower(s->irq); 236 } 237 if (s->cd_irq) { 238 qemu_irq_lower(s->cd_irq); 239 } 240 241 return 0; 242 } 243 244 /* Who to notify on card events */ 245 void pxa2xx_pcmcia_set_irq_cb(void *opaque, qemu_irq irq, qemu_irq cd_irq) 246 { 247 PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; 248 s->irq = irq; 249 s->cd_irq = cd_irq; 250 } 251 252 static const TypeInfo pxa2xx_pcmcia_type_info = { 253 .name = TYPE_PXA2XX_PCMCIA, 254 .parent = TYPE_SYS_BUS_DEVICE, 255 .instance_size = sizeof(PXA2xxPCMCIAState), 256 .instance_init = pxa2xx_pcmcia_initfn, 257 }; 258 259 static void pxa2xx_pcmcia_register_types(void) 260 { 261 type_register_static(&pxa2xx_pcmcia_type_info); 262 } 263 264 type_init(pxa2xx_pcmcia_register_types) 265