Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 1 | /* |
| 2 | * QEMU IDE Emulation: MacIO support. |
| 3 | * |
| 4 | * Copyright (c) 2003 Fabrice Bellard |
| 5 | * Copyright (c) 2006 Openedhand Ltd. |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | * of this software and associated documentation files (the "Software"), to deal |
| 9 | * in the Software without restriction, including without limitation the rights |
| 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 11 | * copies of the Software, and to permit persons to whom the Software is |
| 12 | * furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 23 | * THE SOFTWARE. |
| 24 | */ |
Gerd Hoffmann | 59f2a78 | 2009-08-20 15:22:26 +0200 | [diff] [blame] | 25 | #include <hw/hw.h> |
| 26 | #include <hw/ppc_mac.h> |
| 27 | #include <hw/mac_dbdma.h> |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 28 | #include "block.h" |
| 29 | #include "block_int.h" |
| 30 | #include "sysemu.h" |
| 31 | #include "dma.h" |
Gerd Hoffmann | 59f2a78 | 2009-08-20 15:22:26 +0200 | [diff] [blame] | 32 | |
| 33 | #include <hw/ide/internal.h> |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 34 | |
| 35 | /***********************************************************/ |
| 36 | /* MacIO based PowerPC IDE */ |
| 37 | |
| 38 | typedef struct MACIOIDEState { |
| 39 | IDEBus bus; |
| 40 | BlockDriverAIOCB *aiocb; |
| 41 | } MACIOIDEState; |
| 42 | |
Blue Swirl | 02c7c99 | 2010-03-29 19:23:57 +0000 | [diff] [blame] | 43 | #define MACIO_PAGE_SIZE 4096 |
| 44 | |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 45 | static void pmac_ide_atapi_transfer_cb(void *opaque, int ret) |
| 46 | { |
| 47 | DBDMA_io *io = opaque; |
| 48 | MACIOIDEState *m = io->opaque; |
| 49 | IDEState *s = idebus_active_if(&m->bus); |
| 50 | |
| 51 | if (ret < 0) { |
| 52 | m->aiocb = NULL; |
| 53 | qemu_sglist_destroy(&s->sg); |
| 54 | ide_atapi_io_error(s, ret); |
| 55 | io->dma_end(opaque); |
| 56 | return; |
| 57 | } |
| 58 | |
| 59 | if (s->io_buffer_size > 0) { |
| 60 | m->aiocb = NULL; |
| 61 | qemu_sglist_destroy(&s->sg); |
| 62 | |
| 63 | s->packet_transfer_size -= s->io_buffer_size; |
| 64 | |
| 65 | s->io_buffer_index += s->io_buffer_size; |
| 66 | s->lba += s->io_buffer_index >> 11; |
| 67 | s->io_buffer_index &= 0x7ff; |
| 68 | } |
| 69 | |
| 70 | if (s->packet_transfer_size <= 0) |
| 71 | ide_atapi_cmd_ok(s); |
| 72 | |
| 73 | if (io->len == 0) { |
| 74 | io->dma_end(opaque); |
| 75 | return; |
| 76 | } |
| 77 | |
| 78 | /* launch next transfer */ |
| 79 | |
| 80 | s->io_buffer_size = io->len; |
| 81 | |
Blue Swirl | 02c7c99 | 2010-03-29 19:23:57 +0000 | [diff] [blame] | 82 | qemu_sglist_init(&s->sg, io->len / MACIO_PAGE_SIZE + 1); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 83 | qemu_sglist_add(&s->sg, io->addr, io->len); |
| 84 | io->addr += io->len; |
| 85 | io->len = 0; |
| 86 | |
| 87 | m->aiocb = dma_bdrv_read(s->bs, &s->sg, |
| 88 | (int64_t)(s->lba << 2) + (s->io_buffer_index >> 9), |
| 89 | pmac_ide_atapi_transfer_cb, io); |
| 90 | if (!m->aiocb) { |
| 91 | qemu_sglist_destroy(&s->sg); |
| 92 | /* Note: media not present is the most likely case */ |
| 93 | ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 94 | ASC_MEDIUM_NOT_PRESENT); |
| 95 | io->dma_end(opaque); |
| 96 | return; |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | static void pmac_ide_transfer_cb(void *opaque, int ret) |
| 101 | { |
| 102 | DBDMA_io *io = opaque; |
| 103 | MACIOIDEState *m = io->opaque; |
| 104 | IDEState *s = idebus_active_if(&m->bus); |
| 105 | int n; |
| 106 | int64_t sector_num; |
| 107 | |
| 108 | if (ret < 0) { |
| 109 | m->aiocb = NULL; |
| 110 | qemu_sglist_destroy(&s->sg); |
| 111 | ide_dma_error(s); |
| 112 | io->dma_end(io); |
| 113 | return; |
| 114 | } |
| 115 | |
| 116 | sector_num = ide_get_sector(s); |
| 117 | if (s->io_buffer_size > 0) { |
| 118 | m->aiocb = NULL; |
| 119 | qemu_sglist_destroy(&s->sg); |
| 120 | n = (s->io_buffer_size + 0x1ff) >> 9; |
| 121 | sector_num += n; |
| 122 | ide_set_sector(s, sector_num); |
| 123 | s->nsector -= n; |
| 124 | } |
| 125 | |
| 126 | /* end of transfer ? */ |
| 127 | if (s->nsector == 0) { |
| 128 | s->status = READY_STAT | SEEK_STAT; |
Gerd Hoffmann | 9cdd03a | 2009-08-28 16:37:42 +0200 | [diff] [blame] | 129 | ide_set_irq(s->bus); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | /* end of DMA ? */ |
| 133 | |
| 134 | if (io->len == 0) { |
| 135 | io->dma_end(io); |
| 136 | return; |
| 137 | } |
| 138 | |
| 139 | /* launch next transfer */ |
| 140 | |
| 141 | s->io_buffer_index = 0; |
| 142 | s->io_buffer_size = io->len; |
| 143 | |
Blue Swirl | 02c7c99 | 2010-03-29 19:23:57 +0000 | [diff] [blame] | 144 | qemu_sglist_init(&s->sg, io->len / MACIO_PAGE_SIZE + 1); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 145 | qemu_sglist_add(&s->sg, io->addr, io->len); |
| 146 | io->addr += io->len; |
| 147 | io->len = 0; |
| 148 | |
| 149 | if (s->is_read) |
| 150 | m->aiocb = dma_bdrv_read(s->bs, &s->sg, sector_num, |
| 151 | pmac_ide_transfer_cb, io); |
| 152 | else |
| 153 | m->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num, |
| 154 | pmac_ide_transfer_cb, io); |
| 155 | if (!m->aiocb) |
| 156 | pmac_ide_transfer_cb(io, -1); |
| 157 | } |
| 158 | |
| 159 | static void pmac_ide_transfer(DBDMA_io *io) |
| 160 | { |
| 161 | MACIOIDEState *m = io->opaque; |
| 162 | IDEState *s = idebus_active_if(&m->bus); |
| 163 | |
| 164 | s->io_buffer_size = 0; |
Markus Armbruster | cd8722b | 2010-05-28 13:32:45 +0200 | [diff] [blame^] | 165 | if (s->drive_kind == IDE_CD) { |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 166 | pmac_ide_atapi_transfer_cb(io, 0); |
| 167 | return; |
| 168 | } |
| 169 | |
| 170 | pmac_ide_transfer_cb(io, 0); |
| 171 | } |
| 172 | |
| 173 | static void pmac_ide_flush(DBDMA_io *io) |
| 174 | { |
| 175 | MACIOIDEState *m = io->opaque; |
| 176 | |
| 177 | if (m->aiocb) |
| 178 | qemu_aio_flush(); |
| 179 | } |
| 180 | |
| 181 | /* PowerMac IDE memory IO */ |
| 182 | static void pmac_ide_writeb (void *opaque, |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 183 | target_phys_addr_t addr, uint32_t val) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 184 | { |
| 185 | MACIOIDEState *d = opaque; |
| 186 | |
| 187 | addr = (addr & 0xFFF) >> 4; |
| 188 | switch (addr) { |
| 189 | case 1 ... 7: |
| 190 | ide_ioport_write(&d->bus, addr, val); |
| 191 | break; |
| 192 | case 8: |
| 193 | case 22: |
| 194 | ide_cmd_write(&d->bus, 0, val); |
| 195 | break; |
| 196 | default: |
| 197 | break; |
| 198 | } |
| 199 | } |
| 200 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 201 | static uint32_t pmac_ide_readb (void *opaque,target_phys_addr_t addr) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 202 | { |
| 203 | uint8_t retval; |
| 204 | MACIOIDEState *d = opaque; |
| 205 | |
| 206 | addr = (addr & 0xFFF) >> 4; |
| 207 | switch (addr) { |
| 208 | case 1 ... 7: |
| 209 | retval = ide_ioport_read(&d->bus, addr); |
| 210 | break; |
| 211 | case 8: |
| 212 | case 22: |
| 213 | retval = ide_status_read(&d->bus, 0); |
| 214 | break; |
| 215 | default: |
| 216 | retval = 0xFF; |
| 217 | break; |
| 218 | } |
| 219 | return retval; |
| 220 | } |
| 221 | |
| 222 | static void pmac_ide_writew (void *opaque, |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 223 | target_phys_addr_t addr, uint32_t val) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 224 | { |
| 225 | MACIOIDEState *d = opaque; |
| 226 | |
| 227 | addr = (addr & 0xFFF) >> 4; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 228 | val = bswap16(val); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 229 | if (addr == 0) { |
| 230 | ide_data_writew(&d->bus, 0, val); |
| 231 | } |
| 232 | } |
| 233 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 234 | static uint32_t pmac_ide_readw (void *opaque,target_phys_addr_t addr) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 235 | { |
| 236 | uint16_t retval; |
| 237 | MACIOIDEState *d = opaque; |
| 238 | |
| 239 | addr = (addr & 0xFFF) >> 4; |
| 240 | if (addr == 0) { |
| 241 | retval = ide_data_readw(&d->bus, 0); |
| 242 | } else { |
| 243 | retval = 0xFFFF; |
| 244 | } |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 245 | retval = bswap16(retval); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 246 | return retval; |
| 247 | } |
| 248 | |
| 249 | static void pmac_ide_writel (void *opaque, |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 250 | target_phys_addr_t addr, uint32_t val) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 251 | { |
| 252 | MACIOIDEState *d = opaque; |
| 253 | |
| 254 | addr = (addr & 0xFFF) >> 4; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 255 | val = bswap32(val); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 256 | if (addr == 0) { |
| 257 | ide_data_writel(&d->bus, 0, val); |
| 258 | } |
| 259 | } |
| 260 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 261 | static uint32_t pmac_ide_readl (void *opaque,target_phys_addr_t addr) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 262 | { |
| 263 | uint32_t retval; |
| 264 | MACIOIDEState *d = opaque; |
| 265 | |
| 266 | addr = (addr & 0xFFF) >> 4; |
| 267 | if (addr == 0) { |
| 268 | retval = ide_data_readl(&d->bus, 0); |
| 269 | } else { |
| 270 | retval = 0xFFFFFFFF; |
| 271 | } |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 272 | retval = bswap32(retval); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 273 | return retval; |
| 274 | } |
| 275 | |
Blue Swirl | bdae229 | 2009-08-28 18:30:54 +0000 | [diff] [blame] | 276 | static CPUWriteMemoryFunc * const pmac_ide_write[] = { |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 277 | pmac_ide_writeb, |
| 278 | pmac_ide_writew, |
| 279 | pmac_ide_writel, |
| 280 | }; |
| 281 | |
Blue Swirl | bdae229 | 2009-08-28 18:30:54 +0000 | [diff] [blame] | 282 | static CPUReadMemoryFunc * const pmac_ide_read[] = { |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 283 | pmac_ide_readb, |
| 284 | pmac_ide_readw, |
| 285 | pmac_ide_readl, |
| 286 | }; |
| 287 | |
Juan Quintela | 44bfa33 | 2009-10-07 19:04:46 +0200 | [diff] [blame] | 288 | static const VMStateDescription vmstate_pmac = { |
| 289 | .name = "ide", |
| 290 | .version_id = 3, |
| 291 | .minimum_version_id = 0, |
| 292 | .minimum_version_id_old = 0, |
| 293 | .fields = (VMStateField []) { |
| 294 | VMSTATE_IDE_BUS(bus, MACIOIDEState), |
| 295 | VMSTATE_IDE_DRIVES(bus.ifs, MACIOIDEState), |
| 296 | VMSTATE_END_OF_LIST() |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 297 | } |
Juan Quintela | 44bfa33 | 2009-10-07 19:04:46 +0200 | [diff] [blame] | 298 | }; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 299 | |
| 300 | static void pmac_ide_reset(void *opaque) |
| 301 | { |
| 302 | MACIOIDEState *d = opaque; |
| 303 | |
Blue Swirl | 4a64356 | 2009-11-07 14:13:05 +0000 | [diff] [blame] | 304 | ide_bus_reset(&d->bus); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | /* hd_table must contain 4 block drivers */ |
| 308 | /* PowerMac uses memory mapped registers, not I/O. Return the memory |
| 309 | I/O index to access the ide. */ |
Gerd Hoffmann | f455e98 | 2009-08-28 15:47:03 +0200 | [diff] [blame] | 310 | int pmac_ide_init (DriveInfo **hd_table, qemu_irq irq, |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 311 | void *dbdma, int channel, qemu_irq dma_irq) |
| 312 | { |
| 313 | MACIOIDEState *d; |
| 314 | int pmac_ide_memory; |
| 315 | |
| 316 | d = qemu_mallocz(sizeof(MACIOIDEState)); |
Markus Armbruster | 57234ee | 2010-06-01 20:32:29 +0200 | [diff] [blame] | 317 | ide_init2_with_non_qdev_drives(&d->bus, hd_table[0], hd_table[1], irq); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 318 | |
| 319 | if (dbdma) |
| 320 | DBDMA_register_channel(dbdma, channel, dma_irq, pmac_ide_transfer, pmac_ide_flush, d); |
| 321 | |
| 322 | pmac_ide_memory = cpu_register_io_memory(pmac_ide_read, |
| 323 | pmac_ide_write, d); |
Juan Quintela | 44bfa33 | 2009-10-07 19:04:46 +0200 | [diff] [blame] | 324 | vmstate_register(0, &vmstate_pmac, d); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 325 | qemu_register_reset(pmac_ide_reset, d); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 326 | |
| 327 | return pmac_ide_memory; |
| 328 | } |