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> |
Paolo Bonzini | 737e150 | 2012-12-17 18:19:44 +0100 | [diff] [blame] | 28 | #include "block/block.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame^] | 29 | #include "sysemu/dma.h" |
Gerd Hoffmann | 59f2a78 | 2009-08-20 15:22:26 +0200 | [diff] [blame] | 30 | |
| 31 | #include <hw/ide/internal.h> |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 32 | |
| 33 | /***********************************************************/ |
| 34 | /* MacIO based PowerPC IDE */ |
| 35 | |
| 36 | typedef struct MACIOIDEState { |
Avi Kivity | 23c5e4c | 2011-08-08 16:09:17 +0300 | [diff] [blame] | 37 | MemoryRegion mem; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 38 | IDEBus bus; |
| 39 | BlockDriverAIOCB *aiocb; |
| 40 | } MACIOIDEState; |
| 41 | |
Blue Swirl | 02c7c99 | 2010-03-29 19:23:57 +0000 | [diff] [blame] | 42 | #define MACIO_PAGE_SIZE 4096 |
| 43 | |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 44 | static void pmac_ide_atapi_transfer_cb(void *opaque, int ret) |
| 45 | { |
| 46 | DBDMA_io *io = opaque; |
| 47 | MACIOIDEState *m = io->opaque; |
| 48 | IDEState *s = idebus_active_if(&m->bus); |
| 49 | |
| 50 | if (ret < 0) { |
| 51 | m->aiocb = NULL; |
| 52 | qemu_sglist_destroy(&s->sg); |
| 53 | ide_atapi_io_error(s, ret); |
Christoph Hellwig | a597e79 | 2011-08-25 08:26:01 +0200 | [diff] [blame] | 54 | goto done; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 55 | } |
| 56 | |
| 57 | if (s->io_buffer_size > 0) { |
| 58 | m->aiocb = NULL; |
| 59 | qemu_sglist_destroy(&s->sg); |
| 60 | |
| 61 | s->packet_transfer_size -= s->io_buffer_size; |
| 62 | |
| 63 | s->io_buffer_index += s->io_buffer_size; |
| 64 | s->lba += s->io_buffer_index >> 11; |
| 65 | s->io_buffer_index &= 0x7ff; |
| 66 | } |
| 67 | |
| 68 | if (s->packet_transfer_size <= 0) |
| 69 | ide_atapi_cmd_ok(s); |
| 70 | |
| 71 | if (io->len == 0) { |
Christoph Hellwig | a597e79 | 2011-08-25 08:26:01 +0200 | [diff] [blame] | 72 | goto done; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | /* launch next transfer */ |
| 76 | |
| 77 | s->io_buffer_size = io->len; |
| 78 | |
Peter Maydell | d688e52 | 2012-11-20 08:16:51 +0000 | [diff] [blame] | 79 | qemu_sglist_init(&s->sg, io->len / MACIO_PAGE_SIZE + 1, |
| 80 | &dma_context_memory); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 81 | qemu_sglist_add(&s->sg, io->addr, io->len); |
| 82 | io->addr += io->len; |
| 83 | io->len = 0; |
| 84 | |
| 85 | m->aiocb = dma_bdrv_read(s->bs, &s->sg, |
| 86 | (int64_t)(s->lba << 2) + (s->io_buffer_index >> 9), |
| 87 | pmac_ide_atapi_transfer_cb, io); |
Christoph Hellwig | a597e79 | 2011-08-25 08:26:01 +0200 | [diff] [blame] | 88 | return; |
| 89 | |
| 90 | done: |
| 91 | bdrv_acct_done(s->bs, &s->acct); |
| 92 | io->dma_end(opaque); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | static void pmac_ide_transfer_cb(void *opaque, int ret) |
| 96 | { |
| 97 | DBDMA_io *io = opaque; |
| 98 | MACIOIDEState *m = io->opaque; |
| 99 | IDEState *s = idebus_active_if(&m->bus); |
| 100 | int n; |
| 101 | int64_t sector_num; |
| 102 | |
| 103 | if (ret < 0) { |
| 104 | m->aiocb = NULL; |
| 105 | qemu_sglist_destroy(&s->sg); |
| 106 | ide_dma_error(s); |
Christoph Hellwig | a597e79 | 2011-08-25 08:26:01 +0200 | [diff] [blame] | 107 | goto done; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | sector_num = ide_get_sector(s); |
| 111 | if (s->io_buffer_size > 0) { |
| 112 | m->aiocb = NULL; |
| 113 | qemu_sglist_destroy(&s->sg); |
| 114 | n = (s->io_buffer_size + 0x1ff) >> 9; |
| 115 | sector_num += n; |
| 116 | ide_set_sector(s, sector_num); |
| 117 | s->nsector -= n; |
| 118 | } |
| 119 | |
| 120 | /* end of transfer ? */ |
| 121 | if (s->nsector == 0) { |
| 122 | s->status = READY_STAT | SEEK_STAT; |
Gerd Hoffmann | 9cdd03a | 2009-08-28 16:37:42 +0200 | [diff] [blame] | 123 | ide_set_irq(s->bus); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | /* end of DMA ? */ |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 127 | if (io->len == 0) { |
Christoph Hellwig | a597e79 | 2011-08-25 08:26:01 +0200 | [diff] [blame] | 128 | goto done; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | /* launch next transfer */ |
| 132 | |
| 133 | s->io_buffer_index = 0; |
| 134 | s->io_buffer_size = io->len; |
| 135 | |
Peter Maydell | d688e52 | 2012-11-20 08:16:51 +0000 | [diff] [blame] | 136 | qemu_sglist_init(&s->sg, io->len / MACIO_PAGE_SIZE + 1, |
| 137 | &dma_context_memory); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 138 | qemu_sglist_add(&s->sg, io->addr, io->len); |
| 139 | io->addr += io->len; |
| 140 | io->len = 0; |
| 141 | |
Christoph Hellwig | 4e1e005 | 2011-05-19 10:58:09 +0200 | [diff] [blame] | 142 | switch (s->dma_cmd) { |
| 143 | case IDE_DMA_READ: |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 144 | m->aiocb = dma_bdrv_read(s->bs, &s->sg, sector_num, |
| 145 | pmac_ide_transfer_cb, io); |
Christoph Hellwig | 4e1e005 | 2011-05-19 10:58:09 +0200 | [diff] [blame] | 146 | break; |
| 147 | case IDE_DMA_WRITE: |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 148 | m->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num, |
| 149 | pmac_ide_transfer_cb, io); |
Christoph Hellwig | 4e1e005 | 2011-05-19 10:58:09 +0200 | [diff] [blame] | 150 | break; |
Christoph Hellwig | d353fb7 | 2011-05-19 10:58:19 +0200 | [diff] [blame] | 151 | case IDE_DMA_TRIM: |
| 152 | m->aiocb = dma_bdrv_io(s->bs, &s->sg, sector_num, |
David Gibson | 43cf8ae | 2012-03-27 13:42:23 +1100 | [diff] [blame] | 153 | ide_issue_trim, pmac_ide_transfer_cb, s, |
| 154 | DMA_DIRECTION_TO_DEVICE); |
Christoph Hellwig | d353fb7 | 2011-05-19 10:58:19 +0200 | [diff] [blame] | 155 | break; |
Christoph Hellwig | 4e1e005 | 2011-05-19 10:58:09 +0200 | [diff] [blame] | 156 | } |
Christoph Hellwig | a597e79 | 2011-08-25 08:26:01 +0200 | [diff] [blame] | 157 | return; |
Paolo Bonzini | b9b2008 | 2011-11-14 17:50:53 +0100 | [diff] [blame] | 158 | |
Christoph Hellwig | a597e79 | 2011-08-25 08:26:01 +0200 | [diff] [blame] | 159 | done: |
| 160 | if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) { |
| 161 | bdrv_acct_done(s->bs, &s->acct); |
| 162 | } |
| 163 | io->dma_end(io); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | static void pmac_ide_transfer(DBDMA_io *io) |
| 167 | { |
| 168 | MACIOIDEState *m = io->opaque; |
| 169 | IDEState *s = idebus_active_if(&m->bus); |
| 170 | |
| 171 | s->io_buffer_size = 0; |
Markus Armbruster | cd8722b | 2010-05-28 13:32:45 +0200 | [diff] [blame] | 172 | if (s->drive_kind == IDE_CD) { |
Christoph Hellwig | a597e79 | 2011-08-25 08:26:01 +0200 | [diff] [blame] | 173 | bdrv_acct_start(s->bs, &s->acct, io->len, BDRV_ACCT_READ); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 174 | pmac_ide_atapi_transfer_cb(io, 0); |
| 175 | return; |
| 176 | } |
| 177 | |
Christoph Hellwig | a597e79 | 2011-08-25 08:26:01 +0200 | [diff] [blame] | 178 | switch (s->dma_cmd) { |
| 179 | case IDE_DMA_READ: |
| 180 | bdrv_acct_start(s->bs, &s->acct, io->len, BDRV_ACCT_READ); |
| 181 | break; |
| 182 | case IDE_DMA_WRITE: |
| 183 | bdrv_acct_start(s->bs, &s->acct, io->len, BDRV_ACCT_WRITE); |
| 184 | break; |
| 185 | default: |
| 186 | break; |
| 187 | } |
| 188 | |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 189 | pmac_ide_transfer_cb(io, 0); |
| 190 | } |
| 191 | |
| 192 | static void pmac_ide_flush(DBDMA_io *io) |
| 193 | { |
| 194 | MACIOIDEState *m = io->opaque; |
| 195 | |
Stefan Hajnoczi | 922453b | 2011-11-30 12:23:43 +0000 | [diff] [blame] | 196 | if (m->aiocb) { |
| 197 | bdrv_drain_all(); |
| 198 | } |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 199 | } |
| 200 | |
| 201 | /* PowerMac IDE memory IO */ |
| 202 | static void pmac_ide_writeb (void *opaque, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 203 | hwaddr addr, uint32_t val) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 204 | { |
| 205 | MACIOIDEState *d = opaque; |
| 206 | |
| 207 | addr = (addr & 0xFFF) >> 4; |
| 208 | switch (addr) { |
| 209 | case 1 ... 7: |
| 210 | ide_ioport_write(&d->bus, addr, val); |
| 211 | break; |
| 212 | case 8: |
| 213 | case 22: |
| 214 | ide_cmd_write(&d->bus, 0, val); |
| 215 | break; |
| 216 | default: |
| 217 | break; |
| 218 | } |
| 219 | } |
| 220 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 221 | static uint32_t pmac_ide_readb (void *opaque,hwaddr addr) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 222 | { |
| 223 | uint8_t retval; |
| 224 | MACIOIDEState *d = opaque; |
| 225 | |
| 226 | addr = (addr & 0xFFF) >> 4; |
| 227 | switch (addr) { |
| 228 | case 1 ... 7: |
| 229 | retval = ide_ioport_read(&d->bus, addr); |
| 230 | break; |
| 231 | case 8: |
| 232 | case 22: |
| 233 | retval = ide_status_read(&d->bus, 0); |
| 234 | break; |
| 235 | default: |
| 236 | retval = 0xFF; |
| 237 | break; |
| 238 | } |
| 239 | return retval; |
| 240 | } |
| 241 | |
| 242 | static void pmac_ide_writew (void *opaque, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 243 | hwaddr addr, uint32_t val) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 244 | { |
| 245 | MACIOIDEState *d = opaque; |
| 246 | |
| 247 | addr = (addr & 0xFFF) >> 4; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 248 | val = bswap16(val); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 249 | if (addr == 0) { |
| 250 | ide_data_writew(&d->bus, 0, val); |
| 251 | } |
| 252 | } |
| 253 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 254 | static uint32_t pmac_ide_readw (void *opaque,hwaddr addr) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 255 | { |
| 256 | uint16_t retval; |
| 257 | MACIOIDEState *d = opaque; |
| 258 | |
| 259 | addr = (addr & 0xFFF) >> 4; |
| 260 | if (addr == 0) { |
| 261 | retval = ide_data_readw(&d->bus, 0); |
| 262 | } else { |
| 263 | retval = 0xFFFF; |
| 264 | } |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 265 | retval = bswap16(retval); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 266 | return retval; |
| 267 | } |
| 268 | |
| 269 | static void pmac_ide_writel (void *opaque, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 270 | hwaddr addr, uint32_t val) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 271 | { |
| 272 | MACIOIDEState *d = opaque; |
| 273 | |
| 274 | addr = (addr & 0xFFF) >> 4; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 275 | val = bswap32(val); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 276 | if (addr == 0) { |
| 277 | ide_data_writel(&d->bus, 0, val); |
| 278 | } |
| 279 | } |
| 280 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 281 | static uint32_t pmac_ide_readl (void *opaque,hwaddr addr) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 282 | { |
| 283 | uint32_t retval; |
| 284 | MACIOIDEState *d = opaque; |
| 285 | |
| 286 | addr = (addr & 0xFFF) >> 4; |
| 287 | if (addr == 0) { |
| 288 | retval = ide_data_readl(&d->bus, 0); |
| 289 | } else { |
| 290 | retval = 0xFFFFFFFF; |
| 291 | } |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 292 | retval = bswap32(retval); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 293 | return retval; |
| 294 | } |
| 295 | |
Stefan Weil | a348f10 | 2012-02-05 10:19:07 +0000 | [diff] [blame] | 296 | static const MemoryRegionOps pmac_ide_ops = { |
Avi Kivity | 23c5e4c | 2011-08-08 16:09:17 +0300 | [diff] [blame] | 297 | .old_mmio = { |
| 298 | .write = { |
| 299 | pmac_ide_writeb, |
| 300 | pmac_ide_writew, |
| 301 | pmac_ide_writel, |
| 302 | }, |
| 303 | .read = { |
| 304 | pmac_ide_readb, |
| 305 | pmac_ide_readw, |
| 306 | pmac_ide_readl, |
| 307 | }, |
| 308 | }, |
| 309 | .endianness = DEVICE_NATIVE_ENDIAN, |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 310 | }; |
| 311 | |
Juan Quintela | 44bfa33 | 2009-10-07 19:04:46 +0200 | [diff] [blame] | 312 | static const VMStateDescription vmstate_pmac = { |
| 313 | .name = "ide", |
| 314 | .version_id = 3, |
| 315 | .minimum_version_id = 0, |
| 316 | .minimum_version_id_old = 0, |
| 317 | .fields = (VMStateField []) { |
| 318 | VMSTATE_IDE_BUS(bus, MACIOIDEState), |
| 319 | VMSTATE_IDE_DRIVES(bus.ifs, MACIOIDEState), |
| 320 | VMSTATE_END_OF_LIST() |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 321 | } |
Juan Quintela | 44bfa33 | 2009-10-07 19:04:46 +0200 | [diff] [blame] | 322 | }; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 323 | |
| 324 | static void pmac_ide_reset(void *opaque) |
| 325 | { |
| 326 | MACIOIDEState *d = opaque; |
| 327 | |
Blue Swirl | 4a64356 | 2009-11-07 14:13:05 +0000 | [diff] [blame] | 328 | ide_bus_reset(&d->bus); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 329 | } |
| 330 | |
| 331 | /* hd_table must contain 4 block drivers */ |
| 332 | /* PowerMac uses memory mapped registers, not I/O. Return the memory |
| 333 | I/O index to access the ide. */ |
Avi Kivity | 23c5e4c | 2011-08-08 16:09:17 +0300 | [diff] [blame] | 334 | MemoryRegion *pmac_ide_init (DriveInfo **hd_table, qemu_irq irq, |
| 335 | void *dbdma, int channel, qemu_irq dma_irq) |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 336 | { |
| 337 | MACIOIDEState *d; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 338 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 339 | d = g_malloc0(sizeof(MACIOIDEState)); |
Markus Armbruster | 57234ee | 2010-06-01 20:32:29 +0200 | [diff] [blame] | 340 | 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] | 341 | |
| 342 | if (dbdma) |
| 343 | DBDMA_register_channel(dbdma, channel, dma_irq, pmac_ide_transfer, pmac_ide_flush, d); |
| 344 | |
Avi Kivity | 23c5e4c | 2011-08-08 16:09:17 +0300 | [diff] [blame] | 345 | memory_region_init_io(&d->mem, &pmac_ide_ops, d, "pmac-ide", 0x1000); |
Alex Williamson | 0be71e3 | 2010-06-25 11:09:07 -0600 | [diff] [blame] | 346 | vmstate_register(NULL, 0, &vmstate_pmac, d); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 347 | qemu_register_reset(pmac_ide_reset, d); |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 348 | |
Avi Kivity | 23c5e4c | 2011-08-08 16:09:17 +0300 | [diff] [blame] | 349 | return &d->mem; |
Gerd Hoffmann | b884220 | 2009-08-20 15:22:21 +0200 | [diff] [blame] | 350 | } |