1 /* 2 * QEMU USB OHCI Emulation 3 * Copyright (c) 2004 Gianni Tedesco 4 * Copyright (c) 2006 CodeSourcery 5 * Copyright (c) 2006 Openedhand Ltd. 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 * 20 * TODO: 21 * o Isochronous transfers 22 * o Allocate bandwidth in frames properly 23 * o Disable timers when nothing needs to be done, or remove timer usage 24 * all together. 25 * o BIOS work to boot from USB storage 26 */ 27 28 #include "qemu/osdep.h" 29 #include "hw/irq.h" 30 #include "qapi/error.h" 31 #include "qemu/module.h" 32 #include "qemu/timer.h" 33 #include "hw/usb.h" 34 #include "migration/vmstate.h" 35 #include "hw/sysbus.h" 36 #include "hw/qdev-dma.h" 37 #include "hw/qdev-properties.h" 38 #include "trace.h" 39 #include "hcd-ohci.h" 40 41 /* This causes frames to occur 1000x slower */ 42 //#define OHCI_TIME_WARP 1 43 44 #define ED_LINK_LIMIT 32 45 46 static int64_t usb_frame_time; 47 static int64_t usb_bit_time; 48 49 /* Host Controller Communications Area */ 50 struct ohci_hcca { 51 uint32_t intr[32]; 52 uint16_t frame, pad; 53 uint32_t done; 54 }; 55 #define HCCA_WRITEBACK_OFFSET offsetof(struct ohci_hcca, frame) 56 #define HCCA_WRITEBACK_SIZE 8 /* frame, pad, done */ 57 58 #define ED_WBACK_OFFSET offsetof(struct ohci_ed, head) 59 #define ED_WBACK_SIZE 4 60 61 static void ohci_async_cancel_device(OHCIState *ohci, USBDevice *dev); 62 63 /* Bitfields for the first word of an Endpoint Desciptor. */ 64 #define OHCI_ED_FA_SHIFT 0 65 #define OHCI_ED_FA_MASK (0x7f<<OHCI_ED_FA_SHIFT) 66 #define OHCI_ED_EN_SHIFT 7 67 #define OHCI_ED_EN_MASK (0xf<<OHCI_ED_EN_SHIFT) 68 #define OHCI_ED_D_SHIFT 11 69 #define OHCI_ED_D_MASK (3<<OHCI_ED_D_SHIFT) 70 #define OHCI_ED_S (1<<13) 71 #define OHCI_ED_K (1<<14) 72 #define OHCI_ED_F (1<<15) 73 #define OHCI_ED_MPS_SHIFT 16 74 #define OHCI_ED_MPS_MASK (0x7ff<<OHCI_ED_MPS_SHIFT) 75 76 /* Flags in the head field of an Endpoint Desciptor. */ 77 #define OHCI_ED_H 1 78 #define OHCI_ED_C 2 79 80 /* Bitfields for the first word of a Transfer Desciptor. */ 81 #define OHCI_TD_R (1<<18) 82 #define OHCI_TD_DP_SHIFT 19 83 #define OHCI_TD_DP_MASK (3<<OHCI_TD_DP_SHIFT) 84 #define OHCI_TD_DI_SHIFT 21 85 #define OHCI_TD_DI_MASK (7<<OHCI_TD_DI_SHIFT) 86 #define OHCI_TD_T0 (1<<24) 87 #define OHCI_TD_T1 (1<<25) 88 #define OHCI_TD_EC_SHIFT 26 89 #define OHCI_TD_EC_MASK (3<<OHCI_TD_EC_SHIFT) 90 #define OHCI_TD_CC_SHIFT 28 91 #define OHCI_TD_CC_MASK (0xf<<OHCI_TD_CC_SHIFT) 92 93 /* Bitfields for the first word of an Isochronous Transfer Desciptor. */ 94 /* CC & DI - same as in the General Transfer Desciptor */ 95 #define OHCI_TD_SF_SHIFT 0 96 #define OHCI_TD_SF_MASK (0xffff<<OHCI_TD_SF_SHIFT) 97 #define OHCI_TD_FC_SHIFT 24 98 #define OHCI_TD_FC_MASK (7<<OHCI_TD_FC_SHIFT) 99 100 /* Isochronous Transfer Desciptor - Offset / PacketStatusWord */ 101 #define OHCI_TD_PSW_CC_SHIFT 12 102 #define OHCI_TD_PSW_CC_MASK (0xf<<OHCI_TD_PSW_CC_SHIFT) 103 #define OHCI_TD_PSW_SIZE_SHIFT 0 104 #define OHCI_TD_PSW_SIZE_MASK (0xfff<<OHCI_TD_PSW_SIZE_SHIFT) 105 106 #define OHCI_PAGE_MASK 0xfffff000 107 #define OHCI_OFFSET_MASK 0xfff 108 109 #define OHCI_DPTR_MASK 0xfffffff0 110 111 #define OHCI_BM(val, field) \ 112 (((val) & OHCI_##field##_MASK) >> OHCI_##field##_SHIFT) 113 114 #define OHCI_SET_BM(val, field, newval) do { \ 115 val &= ~OHCI_##field##_MASK; \ 116 val |= ((newval) << OHCI_##field##_SHIFT) & OHCI_##field##_MASK; \ 117 } while(0) 118 119 /* endpoint descriptor */ 120 struct ohci_ed { 121 uint32_t flags; 122 uint32_t tail; 123 uint32_t head; 124 uint32_t next; 125 }; 126 127 /* General transfer descriptor */ 128 struct ohci_td { 129 uint32_t flags; 130 uint32_t cbp; 131 uint32_t next; 132 uint32_t be; 133 }; 134 135 /* Isochronous transfer descriptor */ 136 struct ohci_iso_td { 137 uint32_t flags; 138 uint32_t bp; 139 uint32_t next; 140 uint32_t be; 141 uint16_t offset[8]; 142 }; 143 144 #define USB_HZ 12000000 145 146 /* OHCI Local stuff */ 147 #define OHCI_CTL_CBSR ((1<<0)|(1<<1)) 148 #define OHCI_CTL_PLE (1<<2) 149 #define OHCI_CTL_IE (1<<3) 150 #define OHCI_CTL_CLE (1<<4) 151 #define OHCI_CTL_BLE (1<<5) 152 #define OHCI_CTL_HCFS ((1<<6)|(1<<7)) 153 #define OHCI_USB_RESET 0x00 154 #define OHCI_USB_RESUME 0x40 155 #define OHCI_USB_OPERATIONAL 0x80 156 #define OHCI_USB_SUSPEND 0xc0 157 #define OHCI_CTL_IR (1<<8) 158 #define OHCI_CTL_RWC (1<<9) 159 #define OHCI_CTL_RWE (1<<10) 160 161 #define OHCI_STATUS_HCR (1<<0) 162 #define OHCI_STATUS_CLF (1<<1) 163 #define OHCI_STATUS_BLF (1<<2) 164 #define OHCI_STATUS_OCR (1<<3) 165 #define OHCI_STATUS_SOC ((1<<6)|(1<<7)) 166 167 #define OHCI_INTR_SO (1U<<0) /* Scheduling overrun */ 168 #define OHCI_INTR_WD (1U<<1) /* HcDoneHead writeback */ 169 #define OHCI_INTR_SF (1U<<2) /* Start of frame */ 170 #define OHCI_INTR_RD (1U<<3) /* Resume detect */ 171 #define OHCI_INTR_UE (1U<<4) /* Unrecoverable error */ 172 #define OHCI_INTR_FNO (1U<<5) /* Frame number overflow */ 173 #define OHCI_INTR_RHSC (1U<<6) /* Root hub status change */ 174 #define OHCI_INTR_OC (1U<<30) /* Ownership change */ 175 #define OHCI_INTR_MIE (1U<<31) /* Master Interrupt Enable */ 176 177 #define OHCI_HCCA_SIZE 0x100 178 #define OHCI_HCCA_MASK 0xffffff00 179 180 #define OHCI_EDPTR_MASK 0xfffffff0 181 182 #define OHCI_FMI_FI 0x00003fff 183 #define OHCI_FMI_FSMPS 0xffff0000 184 #define OHCI_FMI_FIT 0x80000000 185 186 #define OHCI_FR_RT (1U<<31) 187 188 #define OHCI_LS_THRESH 0x628 189 190 #define OHCI_RHA_RW_MASK 0x00000000 /* Mask of supported features. */ 191 #define OHCI_RHA_PSM (1<<8) 192 #define OHCI_RHA_NPS (1<<9) 193 #define OHCI_RHA_DT (1<<10) 194 #define OHCI_RHA_OCPM (1<<11) 195 #define OHCI_RHA_NOCP (1<<12) 196 #define OHCI_RHA_POTPGT_MASK 0xff000000 197 198 #define OHCI_RHS_LPS (1U<<0) 199 #define OHCI_RHS_OCI (1U<<1) 200 #define OHCI_RHS_DRWE (1U<<15) 201 #define OHCI_RHS_LPSC (1U<<16) 202 #define OHCI_RHS_OCIC (1U<<17) 203 #define OHCI_RHS_CRWE (1U<<31) 204 205 #define OHCI_PORT_CCS (1<<0) 206 #define OHCI_PORT_PES (1<<1) 207 #define OHCI_PORT_PSS (1<<2) 208 #define OHCI_PORT_POCI (1<<3) 209 #define OHCI_PORT_PRS (1<<4) 210 #define OHCI_PORT_PPS (1<<8) 211 #define OHCI_PORT_LSDA (1<<9) 212 #define OHCI_PORT_CSC (1<<16) 213 #define OHCI_PORT_PESC (1<<17) 214 #define OHCI_PORT_PSSC (1<<18) 215 #define OHCI_PORT_OCIC (1<<19) 216 #define OHCI_PORT_PRSC (1<<20) 217 #define OHCI_PORT_WTC (OHCI_PORT_CSC|OHCI_PORT_PESC|OHCI_PORT_PSSC \ 218 |OHCI_PORT_OCIC|OHCI_PORT_PRSC) 219 220 #define OHCI_TD_DIR_SETUP 0x0 221 #define OHCI_TD_DIR_OUT 0x1 222 #define OHCI_TD_DIR_IN 0x2 223 #define OHCI_TD_DIR_RESERVED 0x3 224 225 #define OHCI_CC_NOERROR 0x0 226 #define OHCI_CC_CRC 0x1 227 #define OHCI_CC_BITSTUFFING 0x2 228 #define OHCI_CC_DATATOGGLEMISMATCH 0x3 229 #define OHCI_CC_STALL 0x4 230 #define OHCI_CC_DEVICENOTRESPONDING 0x5 231 #define OHCI_CC_PIDCHECKFAILURE 0x6 232 #define OHCI_CC_UNDEXPETEDPID 0x7 233 #define OHCI_CC_DATAOVERRUN 0x8 234 #define OHCI_CC_DATAUNDERRUN 0x9 235 #define OHCI_CC_BUFFEROVERRUN 0xc 236 #define OHCI_CC_BUFFERUNDERRUN 0xd 237 238 #define OHCI_HRESET_FSBIR (1 << 0) 239 240 static void ohci_die(OHCIState *ohci) 241 { 242 ohci->ohci_die(ohci); 243 } 244 245 /* Update IRQ levels */ 246 static inline void ohci_intr_update(OHCIState *ohci) 247 { 248 int level = 0; 249 250 if ((ohci->intr & OHCI_INTR_MIE) && 251 (ohci->intr_status & ohci->intr)) 252 level = 1; 253 254 qemu_set_irq(ohci->irq, level); 255 } 256 257 /* Set an interrupt */ 258 static inline void ohci_set_interrupt(OHCIState *ohci, uint32_t intr) 259 { 260 ohci->intr_status |= intr; 261 ohci_intr_update(ohci); 262 } 263 264 /* Attach or detach a device on a root hub port. */ 265 static void ohci_attach(USBPort *port1) 266 { 267 OHCIState *s = port1->opaque; 268 OHCIPort *port = &s->rhport[port1->index]; 269 uint32_t old_state = port->ctrl; 270 271 /* set connect status */ 272 port->ctrl |= OHCI_PORT_CCS | OHCI_PORT_CSC; 273 274 /* update speed */ 275 if (port->port.dev->speed == USB_SPEED_LOW) { 276 port->ctrl |= OHCI_PORT_LSDA; 277 } else { 278 port->ctrl &= ~OHCI_PORT_LSDA; 279 } 280 281 /* notify of remote-wakeup */ 282 if ((s->ctl & OHCI_CTL_HCFS) == OHCI_USB_SUSPEND) { 283 ohci_set_interrupt(s, OHCI_INTR_RD); 284 } 285 286 trace_usb_ohci_port_attach(port1->index); 287 288 if (old_state != port->ctrl) { 289 ohci_set_interrupt(s, OHCI_INTR_RHSC); 290 } 291 } 292 293 static void ohci_detach(USBPort *port1) 294 { 295 OHCIState *s = port1->opaque; 296 OHCIPort *port = &s->rhport[port1->index]; 297 uint32_t old_state = port->ctrl; 298 299 ohci_async_cancel_device(s, port1->dev); 300 301 /* set connect status */ 302 if (port->ctrl & OHCI_PORT_CCS) { 303 port->ctrl &= ~OHCI_PORT_CCS; 304 port->ctrl |= OHCI_PORT_CSC; 305 } 306 /* disable port */ 307 if (port->ctrl & OHCI_PORT_PES) { 308 port->ctrl &= ~OHCI_PORT_PES; 309 port->ctrl |= OHCI_PORT_PESC; 310 } 311 trace_usb_ohci_port_detach(port1->index); 312 313 if (old_state != port->ctrl) { 314 ohci_set_interrupt(s, OHCI_INTR_RHSC); 315 } 316 } 317 318 static void ohci_wakeup(USBPort *port1) 319 { 320 OHCIState *s = port1->opaque; 321 OHCIPort *port = &s->rhport[port1->index]; 322 uint32_t intr = 0; 323 if (port->ctrl & OHCI_PORT_PSS) { 324 trace_usb_ohci_port_wakeup(port1->index); 325 port->ctrl |= OHCI_PORT_PSSC; 326 port->ctrl &= ~OHCI_PORT_PSS; 327 intr = OHCI_INTR_RHSC; 328 } 329 /* Note that the controller can be suspended even if this port is not */ 330 if ((s->ctl & OHCI_CTL_HCFS) == OHCI_USB_SUSPEND) { 331 trace_usb_ohci_remote_wakeup(s->name); 332 /* This is the one state transition the controller can do by itself */ 333 s->ctl &= ~OHCI_CTL_HCFS; 334 s->ctl |= OHCI_USB_RESUME; 335 /* In suspend mode only ResumeDetected is possible, not RHSC: 336 * see the OHCI spec 5.1.2.3. 337 */ 338 intr = OHCI_INTR_RD; 339 } 340 ohci_set_interrupt(s, intr); 341 } 342 343 static void ohci_child_detach(USBPort *port1, USBDevice *child) 344 { 345 OHCIState *s = port1->opaque; 346 347 ohci_async_cancel_device(s, child); 348 } 349 350 static USBDevice *ohci_find_device(OHCIState *ohci, uint8_t addr) 351 { 352 USBDevice *dev; 353 int i; 354 355 for (i = 0; i < ohci->num_ports; i++) { 356 if ((ohci->rhport[i].ctrl & OHCI_PORT_PES) == 0) { 357 continue; 358 } 359 dev = usb_find_device(&ohci->rhport[i].port, addr); 360 if (dev != NULL) { 361 return dev; 362 } 363 } 364 return NULL; 365 } 366 367 void ohci_stop_endpoints(OHCIState *ohci) 368 { 369 USBDevice *dev; 370 int i, j; 371 372 for (i = 0; i < ohci->num_ports; i++) { 373 dev = ohci->rhport[i].port.dev; 374 if (dev && dev->attached) { 375 usb_device_ep_stopped(dev, &dev->ep_ctl); 376 for (j = 0; j < USB_MAX_ENDPOINTS; j++) { 377 usb_device_ep_stopped(dev, &dev->ep_in[j]); 378 usb_device_ep_stopped(dev, &dev->ep_out[j]); 379 } 380 } 381 } 382 } 383 384 static void ohci_roothub_reset(OHCIState *ohci) 385 { 386 OHCIPort *port; 387 int i; 388 389 ohci_bus_stop(ohci); 390 ohci->rhdesc_a = OHCI_RHA_NPS | ohci->num_ports; 391 ohci->rhdesc_b = 0x0; /* Impl. specific */ 392 ohci->rhstatus = 0; 393 394 for (i = 0; i < ohci->num_ports; i++) { 395 port = &ohci->rhport[i]; 396 port->ctrl = 0; 397 if (port->port.dev && port->port.dev->attached) { 398 usb_port_reset(&port->port); 399 } 400 } 401 if (ohci->async_td) { 402 usb_cancel_packet(&ohci->usb_packet); 403 ohci->async_td = 0; 404 } 405 ohci_stop_endpoints(ohci); 406 } 407 408 /* Reset the controller */ 409 static void ohci_soft_reset(OHCIState *ohci) 410 { 411 trace_usb_ohci_reset(ohci->name); 412 413 ohci_bus_stop(ohci); 414 ohci->ctl = (ohci->ctl & OHCI_CTL_IR) | OHCI_USB_SUSPEND; 415 ohci->old_ctl = 0; 416 ohci->status = 0; 417 ohci->intr_status = 0; 418 ohci->intr = OHCI_INTR_MIE; 419 420 ohci->hcca = 0; 421 ohci->ctrl_head = ohci->ctrl_cur = 0; 422 ohci->bulk_head = ohci->bulk_cur = 0; 423 ohci->per_cur = 0; 424 ohci->done = 0; 425 ohci->done_count = 7; 426 427 /* FSMPS is marked TBD in OCHI 1.0, what gives ffs? 428 * I took the value linux sets ... 429 */ 430 ohci->fsmps = 0x2778; 431 ohci->fi = 0x2edf; 432 ohci->fit = 0; 433 ohci->frt = 0; 434 ohci->frame_number = 0; 435 ohci->pstart = 0; 436 ohci->lst = OHCI_LS_THRESH; 437 } 438 439 void ohci_hard_reset(OHCIState *ohci) 440 { 441 ohci_soft_reset(ohci); 442 ohci->ctl = 0; 443 ohci_roothub_reset(ohci); 444 } 445 446 /* Get an array of dwords from main memory */ 447 static inline int get_dwords(OHCIState *ohci, 448 dma_addr_t addr, uint32_t *buf, int num) 449 { 450 int i; 451 452 addr += ohci->localmem_base; 453 454 for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 455 if (dma_memory_read(ohci->as, addr, buf, sizeof(*buf))) { 456 return -1; 457 } 458 *buf = le32_to_cpu(*buf); 459 } 460 461 return 0; 462 } 463 464 /* Put an array of dwords in to main memory */ 465 static inline int put_dwords(OHCIState *ohci, 466 dma_addr_t addr, uint32_t *buf, int num) 467 { 468 int i; 469 470 addr += ohci->localmem_base; 471 472 for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 473 uint32_t tmp = cpu_to_le32(*buf); 474 if (dma_memory_write(ohci->as, addr, &tmp, sizeof(tmp))) { 475 return -1; 476 } 477 } 478 479 return 0; 480 } 481 482 /* Get an array of words from main memory */ 483 static inline int get_words(OHCIState *ohci, 484 dma_addr_t addr, uint16_t *buf, int num) 485 { 486 int i; 487 488 addr += ohci->localmem_base; 489 490 for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 491 if (dma_memory_read(ohci->as, addr, buf, sizeof(*buf))) { 492 return -1; 493 } 494 *buf = le16_to_cpu(*buf); 495 } 496 497 return 0; 498 } 499 500 /* Put an array of words in to main memory */ 501 static inline int put_words(OHCIState *ohci, 502 dma_addr_t addr, uint16_t *buf, int num) 503 { 504 int i; 505 506 addr += ohci->localmem_base; 507 508 for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 509 uint16_t tmp = cpu_to_le16(*buf); 510 if (dma_memory_write(ohci->as, addr, &tmp, sizeof(tmp))) { 511 return -1; 512 } 513 } 514 515 return 0; 516 } 517 518 static inline int ohci_read_ed(OHCIState *ohci, 519 dma_addr_t addr, struct ohci_ed *ed) 520 { 521 return get_dwords(ohci, addr, (uint32_t *)ed, sizeof(*ed) >> 2); 522 } 523 524 static inline int ohci_read_td(OHCIState *ohci, 525 dma_addr_t addr, struct ohci_td *td) 526 { 527 return get_dwords(ohci, addr, (uint32_t *)td, sizeof(*td) >> 2); 528 } 529 530 static inline int ohci_read_iso_td(OHCIState *ohci, 531 dma_addr_t addr, struct ohci_iso_td *td) 532 { 533 return get_dwords(ohci, addr, (uint32_t *)td, 4) || 534 get_words(ohci, addr + 16, td->offset, 8); 535 } 536 537 static inline int ohci_read_hcca(OHCIState *ohci, 538 dma_addr_t addr, struct ohci_hcca *hcca) 539 { 540 return dma_memory_read(ohci->as, addr + ohci->localmem_base, 541 hcca, sizeof(*hcca)); 542 } 543 544 static inline int ohci_put_ed(OHCIState *ohci, 545 dma_addr_t addr, struct ohci_ed *ed) 546 { 547 /* ed->tail is under control of the HCD. 548 * Since just ed->head is changed by HC, just write back this 549 */ 550 551 return put_dwords(ohci, addr + ED_WBACK_OFFSET, 552 (uint32_t *)((char *)ed + ED_WBACK_OFFSET), 553 ED_WBACK_SIZE >> 2); 554 } 555 556 static inline int ohci_put_td(OHCIState *ohci, 557 dma_addr_t addr, struct ohci_td *td) 558 { 559 return put_dwords(ohci, addr, (uint32_t *)td, sizeof(*td) >> 2); 560 } 561 562 static inline int ohci_put_iso_td(OHCIState *ohci, 563 dma_addr_t addr, struct ohci_iso_td *td) 564 { 565 return put_dwords(ohci, addr, (uint32_t *)td, 4) || 566 put_words(ohci, addr + 16, td->offset, 8); 567 } 568 569 static inline int ohci_put_hcca(OHCIState *ohci, 570 dma_addr_t addr, struct ohci_hcca *hcca) 571 { 572 return dma_memory_write(ohci->as, 573 addr + ohci->localmem_base + HCCA_WRITEBACK_OFFSET, 574 (char *)hcca + HCCA_WRITEBACK_OFFSET, 575 HCCA_WRITEBACK_SIZE); 576 } 577 578 /* Read/Write the contents of a TD from/to main memory. */ 579 static int ohci_copy_td(OHCIState *ohci, struct ohci_td *td, 580 uint8_t *buf, int len, DMADirection dir) 581 { 582 dma_addr_t ptr, n; 583 584 ptr = td->cbp; 585 n = 0x1000 - (ptr & 0xfff); 586 if (n > len) 587 n = len; 588 589 if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf, n, dir)) { 590 return -1; 591 } 592 if (n == len) { 593 return 0; 594 } 595 ptr = td->be & ~0xfffu; 596 buf += n; 597 if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf, 598 len - n, dir)) { 599 return -1; 600 } 601 return 0; 602 } 603 604 /* Read/Write the contents of an ISO TD from/to main memory. */ 605 static int ohci_copy_iso_td(OHCIState *ohci, 606 uint32_t start_addr, uint32_t end_addr, 607 uint8_t *buf, int len, DMADirection dir) 608 { 609 dma_addr_t ptr, n; 610 611 ptr = start_addr; 612 n = 0x1000 - (ptr & 0xfff); 613 if (n > len) 614 n = len; 615 616 if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf, n, dir)) { 617 return -1; 618 } 619 if (n == len) { 620 return 0; 621 } 622 ptr = end_addr & ~0xfffu; 623 buf += n; 624 if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf, 625 len - n, dir)) { 626 return -1; 627 } 628 return 0; 629 } 630 631 static void ohci_process_lists(OHCIState *ohci, int completion); 632 633 static void ohci_async_complete_packet(USBPort *port, USBPacket *packet) 634 { 635 OHCIState *ohci = container_of(packet, OHCIState, usb_packet); 636 637 trace_usb_ohci_async_complete(); 638 ohci->async_complete = true; 639 ohci_process_lists(ohci, 1); 640 } 641 642 #define USUB(a, b) ((int16_t)((uint16_t)(a) - (uint16_t)(b))) 643 644 static int ohci_service_iso_td(OHCIState *ohci, struct ohci_ed *ed, 645 int completion) 646 { 647 int dir; 648 size_t len = 0; 649 const char *str = NULL; 650 int pid; 651 int ret; 652 int i; 653 USBDevice *dev; 654 USBEndpoint *ep; 655 struct ohci_iso_td iso_td; 656 uint32_t addr; 657 uint16_t starting_frame; 658 int16_t relative_frame_number; 659 int frame_count; 660 uint32_t start_offset, next_offset, end_offset = 0; 661 uint32_t start_addr, end_addr; 662 663 addr = ed->head & OHCI_DPTR_MASK; 664 665 if (ohci_read_iso_td(ohci, addr, &iso_td)) { 666 trace_usb_ohci_iso_td_read_failed(addr); 667 ohci_die(ohci); 668 return 1; 669 } 670 671 starting_frame = OHCI_BM(iso_td.flags, TD_SF); 672 frame_count = OHCI_BM(iso_td.flags, TD_FC); 673 relative_frame_number = USUB(ohci->frame_number, starting_frame); 674 675 trace_usb_ohci_iso_td_head( 676 ed->head & OHCI_DPTR_MASK, ed->tail & OHCI_DPTR_MASK, 677 iso_td.flags, iso_td.bp, iso_td.next, iso_td.be, 678 ohci->frame_number, starting_frame, 679 frame_count, relative_frame_number); 680 trace_usb_ohci_iso_td_head_offset( 681 iso_td.offset[0], iso_td.offset[1], 682 iso_td.offset[2], iso_td.offset[3], 683 iso_td.offset[4], iso_td.offset[5], 684 iso_td.offset[6], iso_td.offset[7]); 685 686 if (relative_frame_number < 0) { 687 trace_usb_ohci_iso_td_relative_frame_number_neg(relative_frame_number); 688 return 1; 689 } else if (relative_frame_number > frame_count) { 690 /* ISO TD expired - retire the TD to the Done Queue and continue with 691 the next ISO TD of the same ED */ 692 trace_usb_ohci_iso_td_relative_frame_number_big(relative_frame_number, 693 frame_count); 694 OHCI_SET_BM(iso_td.flags, TD_CC, OHCI_CC_DATAOVERRUN); 695 ed->head &= ~OHCI_DPTR_MASK; 696 ed->head |= (iso_td.next & OHCI_DPTR_MASK); 697 iso_td.next = ohci->done; 698 ohci->done = addr; 699 i = OHCI_BM(iso_td.flags, TD_DI); 700 if (i < ohci->done_count) 701 ohci->done_count = i; 702 if (ohci_put_iso_td(ohci, addr, &iso_td)) { 703 ohci_die(ohci); 704 return 1; 705 } 706 return 0; 707 } 708 709 dir = OHCI_BM(ed->flags, ED_D); 710 switch (dir) { 711 case OHCI_TD_DIR_IN: 712 str = "in"; 713 pid = USB_TOKEN_IN; 714 break; 715 case OHCI_TD_DIR_OUT: 716 str = "out"; 717 pid = USB_TOKEN_OUT; 718 break; 719 case OHCI_TD_DIR_SETUP: 720 str = "setup"; 721 pid = USB_TOKEN_SETUP; 722 break; 723 default: 724 trace_usb_ohci_iso_td_bad_direction(dir); 725 return 1; 726 } 727 728 if (!iso_td.bp || !iso_td.be) { 729 trace_usb_ohci_iso_td_bad_bp_be(iso_td.bp, iso_td.be); 730 return 1; 731 } 732 733 start_offset = iso_td.offset[relative_frame_number]; 734 next_offset = iso_td.offset[relative_frame_number + 1]; 735 736 if (!(OHCI_BM(start_offset, TD_PSW_CC) & 0xe) || 737 ((relative_frame_number < frame_count) && 738 !(OHCI_BM(next_offset, TD_PSW_CC) & 0xe))) { 739 trace_usb_ohci_iso_td_bad_cc_not_accessed(start_offset, next_offset); 740 return 1; 741 } 742 743 if ((relative_frame_number < frame_count) && (start_offset > next_offset)) { 744 trace_usb_ohci_iso_td_bad_cc_overrun(start_offset, next_offset); 745 return 1; 746 } 747 748 if ((start_offset & 0x1000) == 0) { 749 start_addr = (iso_td.bp & OHCI_PAGE_MASK) | 750 (start_offset & OHCI_OFFSET_MASK); 751 } else { 752 start_addr = (iso_td.be & OHCI_PAGE_MASK) | 753 (start_offset & OHCI_OFFSET_MASK); 754 } 755 756 if (relative_frame_number < frame_count) { 757 end_offset = next_offset - 1; 758 if ((end_offset & 0x1000) == 0) { 759 end_addr = (iso_td.bp & OHCI_PAGE_MASK) | 760 (end_offset & OHCI_OFFSET_MASK); 761 } else { 762 end_addr = (iso_td.be & OHCI_PAGE_MASK) | 763 (end_offset & OHCI_OFFSET_MASK); 764 } 765 } else { 766 /* Last packet in the ISO TD */ 767 end_addr = iso_td.be; 768 } 769 770 if ((start_addr & OHCI_PAGE_MASK) != (end_addr & OHCI_PAGE_MASK)) { 771 len = (end_addr & OHCI_OFFSET_MASK) + 0x1001 772 - (start_addr & OHCI_OFFSET_MASK); 773 } else { 774 len = end_addr - start_addr + 1; 775 } 776 777 if (len && dir != OHCI_TD_DIR_IN) { 778 if (ohci_copy_iso_td(ohci, start_addr, end_addr, ohci->usb_buf, len, 779 DMA_DIRECTION_TO_DEVICE)) { 780 ohci_die(ohci); 781 return 1; 782 } 783 } 784 785 if (!completion) { 786 bool int_req = relative_frame_number == frame_count && 787 OHCI_BM(iso_td.flags, TD_DI) == 0; 788 dev = ohci_find_device(ohci, OHCI_BM(ed->flags, ED_FA)); 789 if (dev == NULL) { 790 trace_usb_ohci_td_dev_error(); 791 return 1; 792 } 793 ep = usb_ep_get(dev, pid, OHCI_BM(ed->flags, ED_EN)); 794 usb_packet_setup(&ohci->usb_packet, pid, ep, 0, addr, false, int_req); 795 usb_packet_addbuf(&ohci->usb_packet, ohci->usb_buf, len); 796 usb_handle_packet(dev, &ohci->usb_packet); 797 if (ohci->usb_packet.status == USB_RET_ASYNC) { 798 usb_device_flush_ep_queue(dev, ep); 799 return 1; 800 } 801 } 802 if (ohci->usb_packet.status == USB_RET_SUCCESS) { 803 ret = ohci->usb_packet.actual_length; 804 } else { 805 ret = ohci->usb_packet.status; 806 } 807 808 trace_usb_ohci_iso_td_so(start_offset, end_offset, start_addr, end_addr, 809 str, len, ret); 810 811 /* Writeback */ 812 if (dir == OHCI_TD_DIR_IN && ret >= 0 && ret <= len) { 813 /* IN transfer succeeded */ 814 if (ohci_copy_iso_td(ohci, start_addr, end_addr, ohci->usb_buf, ret, 815 DMA_DIRECTION_FROM_DEVICE)) { 816 ohci_die(ohci); 817 return 1; 818 } 819 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC, 820 OHCI_CC_NOERROR); 821 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE, ret); 822 } else if (dir == OHCI_TD_DIR_OUT && ret == len) { 823 /* OUT transfer succeeded */ 824 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC, 825 OHCI_CC_NOERROR); 826 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE, 0); 827 } else { 828 if (ret > (ssize_t) len) { 829 trace_usb_ohci_iso_td_data_overrun(ret, len); 830 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC, 831 OHCI_CC_DATAOVERRUN); 832 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE, 833 len); 834 } else if (ret >= 0) { 835 trace_usb_ohci_iso_td_data_underrun(ret); 836 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC, 837 OHCI_CC_DATAUNDERRUN); 838 } else { 839 switch (ret) { 840 case USB_RET_IOERROR: 841 case USB_RET_NODEV: 842 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC, 843 OHCI_CC_DEVICENOTRESPONDING); 844 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE, 845 0); 846 break; 847 case USB_RET_NAK: 848 case USB_RET_STALL: 849 trace_usb_ohci_iso_td_nak(ret); 850 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC, 851 OHCI_CC_STALL); 852 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE, 853 0); 854 break; 855 default: 856 trace_usb_ohci_iso_td_bad_response(ret); 857 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC, 858 OHCI_CC_UNDEXPETEDPID); 859 break; 860 } 861 } 862 } 863 864 if (relative_frame_number == frame_count) { 865 /* Last data packet of ISO TD - retire the TD to the Done Queue */ 866 OHCI_SET_BM(iso_td.flags, TD_CC, OHCI_CC_NOERROR); 867 ed->head &= ~OHCI_DPTR_MASK; 868 ed->head |= (iso_td.next & OHCI_DPTR_MASK); 869 iso_td.next = ohci->done; 870 ohci->done = addr; 871 i = OHCI_BM(iso_td.flags, TD_DI); 872 if (i < ohci->done_count) 873 ohci->done_count = i; 874 } 875 if (ohci_put_iso_td(ohci, addr, &iso_td)) { 876 ohci_die(ohci); 877 } 878 return 1; 879 } 880 881 static void ohci_td_pkt(const char *msg, const uint8_t *buf, size_t len) 882 { 883 bool print16; 884 bool printall; 885 const int width = 16; 886 int i; 887 char tmp[3 * width + 1]; 888 char *p = tmp; 889 890 print16 = !!trace_event_get_state_backends(TRACE_USB_OHCI_TD_PKT_SHORT); 891 printall = !!trace_event_get_state_backends(TRACE_USB_OHCI_TD_PKT_FULL); 892 893 if (!printall && !print16) { 894 return; 895 } 896 897 for (i = 0; ; i++) { 898 if (i && (!(i % width) || (i == len))) { 899 if (!printall) { 900 trace_usb_ohci_td_pkt_short(msg, tmp); 901 break; 902 } 903 trace_usb_ohci_td_pkt_full(msg, tmp); 904 p = tmp; 905 *p = 0; 906 } 907 if (i == len) { 908 break; 909 } 910 911 p += sprintf(p, " %.2x", buf[i]); 912 } 913 } 914 915 /* Service a transport descriptor. 916 Returns nonzero to terminate processing of this endpoint. */ 917 918 static int ohci_service_td(OHCIState *ohci, struct ohci_ed *ed) 919 { 920 int dir; 921 size_t len = 0, pktlen = 0; 922 const char *str = NULL; 923 int pid; 924 int ret; 925 int i; 926 USBDevice *dev; 927 USBEndpoint *ep; 928 struct ohci_td td; 929 uint32_t addr; 930 int flag_r; 931 int completion; 932 933 addr = ed->head & OHCI_DPTR_MASK; 934 /* See if this TD has already been submitted to the device. */ 935 completion = (addr == ohci->async_td); 936 if (completion && !ohci->async_complete) { 937 trace_usb_ohci_td_skip_async(); 938 return 1; 939 } 940 if (ohci_read_td(ohci, addr, &td)) { 941 trace_usb_ohci_td_read_error(addr); 942 ohci_die(ohci); 943 return 1; 944 } 945 946 dir = OHCI_BM(ed->flags, ED_D); 947 switch (dir) { 948 case OHCI_TD_DIR_OUT: 949 case OHCI_TD_DIR_IN: 950 /* Same value. */ 951 break; 952 default: 953 dir = OHCI_BM(td.flags, TD_DP); 954 break; 955 } 956 957 switch (dir) { 958 case OHCI_TD_DIR_IN: 959 str = "in"; 960 pid = USB_TOKEN_IN; 961 break; 962 case OHCI_TD_DIR_OUT: 963 str = "out"; 964 pid = USB_TOKEN_OUT; 965 break; 966 case OHCI_TD_DIR_SETUP: 967 str = "setup"; 968 pid = USB_TOKEN_SETUP; 969 break; 970 default: 971 trace_usb_ohci_td_bad_direction(dir); 972 return 1; 973 } 974 if (td.cbp && td.be) { 975 if ((td.cbp & 0xfffff000) != (td.be & 0xfffff000)) { 976 len = (td.be & 0xfff) + 0x1001 - (td.cbp & 0xfff); 977 } else { 978 len = (td.be - td.cbp) + 1; 979 } 980 981 pktlen = len; 982 if (len && dir != OHCI_TD_DIR_IN) { 983 /* The endpoint may not allow us to transfer it all now */ 984 pktlen = (ed->flags & OHCI_ED_MPS_MASK) >> OHCI_ED_MPS_SHIFT; 985 if (pktlen > len) { 986 pktlen = len; 987 } 988 if (!completion) { 989 if (ohci_copy_td(ohci, &td, ohci->usb_buf, pktlen, 990 DMA_DIRECTION_TO_DEVICE)) { 991 ohci_die(ohci); 992 } 993 } 994 } 995 } 996 997 flag_r = (td.flags & OHCI_TD_R) != 0; 998 trace_usb_ohci_td_pkt_hdr(addr, (int64_t)pktlen, (int64_t)len, str, 999 flag_r, td.cbp, td.be); 1000 ohci_td_pkt("OUT", ohci->usb_buf, pktlen); 1001 1002 if (completion) { 1003 ohci->async_td = 0; 1004 ohci->async_complete = false; 1005 } else { 1006 if (ohci->async_td) { 1007 /* ??? The hardware should allow one active packet per 1008 endpoint. We only allow one active packet per controller. 1009 This should be sufficient as long as devices respond in a 1010 timely manner. 1011 */ 1012 trace_usb_ohci_td_too_many_pending(); 1013 return 1; 1014 } 1015 dev = ohci_find_device(ohci, OHCI_BM(ed->flags, ED_FA)); 1016 if (dev == NULL) { 1017 trace_usb_ohci_td_dev_error(); 1018 return 1; 1019 } 1020 ep = usb_ep_get(dev, pid, OHCI_BM(ed->flags, ED_EN)); 1021 usb_packet_setup(&ohci->usb_packet, pid, ep, 0, addr, !flag_r, 1022 OHCI_BM(td.flags, TD_DI) == 0); 1023 usb_packet_addbuf(&ohci->usb_packet, ohci->usb_buf, pktlen); 1024 usb_handle_packet(dev, &ohci->usb_packet); 1025 trace_usb_ohci_td_packet_status(ohci->usb_packet.status); 1026 1027 if (ohci->usb_packet.status == USB_RET_ASYNC) { 1028 usb_device_flush_ep_queue(dev, ep); 1029 ohci->async_td = addr; 1030 return 1; 1031 } 1032 } 1033 if (ohci->usb_packet.status == USB_RET_SUCCESS) { 1034 ret = ohci->usb_packet.actual_length; 1035 } else { 1036 ret = ohci->usb_packet.status; 1037 } 1038 1039 if (ret >= 0) { 1040 if (dir == OHCI_TD_DIR_IN) { 1041 if (ohci_copy_td(ohci, &td, ohci->usb_buf, ret, 1042 DMA_DIRECTION_FROM_DEVICE)) { 1043 ohci_die(ohci); 1044 } 1045 ohci_td_pkt("IN", ohci->usb_buf, pktlen); 1046 } else { 1047 ret = pktlen; 1048 } 1049 } 1050 1051 /* Writeback */ 1052 if (ret == pktlen || (dir == OHCI_TD_DIR_IN && ret >= 0 && flag_r)) { 1053 /* Transmission succeeded. */ 1054 if (ret == len) { 1055 td.cbp = 0; 1056 } else { 1057 if ((td.cbp & 0xfff) + ret > 0xfff) { 1058 td.cbp = (td.be & ~0xfff) + ((td.cbp + ret) & 0xfff); 1059 } else { 1060 td.cbp += ret; 1061 } 1062 } 1063 td.flags |= OHCI_TD_T1; 1064 td.flags ^= OHCI_TD_T0; 1065 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_NOERROR); 1066 OHCI_SET_BM(td.flags, TD_EC, 0); 1067 1068 if ((dir != OHCI_TD_DIR_IN) && (ret != len)) { 1069 /* Partial packet transfer: TD not ready to retire yet */ 1070 goto exit_no_retire; 1071 } 1072 1073 /* Setting ED_C is part of the TD retirement process */ 1074 ed->head &= ~OHCI_ED_C; 1075 if (td.flags & OHCI_TD_T0) 1076 ed->head |= OHCI_ED_C; 1077 } else { 1078 if (ret >= 0) { 1079 trace_usb_ohci_td_underrun(); 1080 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_DATAUNDERRUN); 1081 } else { 1082 switch (ret) { 1083 case USB_RET_IOERROR: 1084 case USB_RET_NODEV: 1085 trace_usb_ohci_td_dev_error(); 1086 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_DEVICENOTRESPONDING); 1087 break; 1088 case USB_RET_NAK: 1089 trace_usb_ohci_td_nak(); 1090 return 1; 1091 case USB_RET_STALL: 1092 trace_usb_ohci_td_stall(); 1093 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_STALL); 1094 break; 1095 case USB_RET_BABBLE: 1096 trace_usb_ohci_td_babble(); 1097 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_DATAOVERRUN); 1098 break; 1099 default: 1100 trace_usb_ohci_td_bad_device_response(ret); 1101 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_UNDEXPETEDPID); 1102 OHCI_SET_BM(td.flags, TD_EC, 3); 1103 break; 1104 } 1105 /* An error occured so we have to clear the interrupt counter. See 1106 * spec at 6.4.4 on page 104 */ 1107 ohci->done_count = 0; 1108 } 1109 ed->head |= OHCI_ED_H; 1110 } 1111 1112 /* Retire this TD */ 1113 ed->head &= ~OHCI_DPTR_MASK; 1114 ed->head |= td.next & OHCI_DPTR_MASK; 1115 td.next = ohci->done; 1116 ohci->done = addr; 1117 i = OHCI_BM(td.flags, TD_DI); 1118 if (i < ohci->done_count) 1119 ohci->done_count = i; 1120 exit_no_retire: 1121 if (ohci_put_td(ohci, addr, &td)) { 1122 ohci_die(ohci); 1123 return 1; 1124 } 1125 return OHCI_BM(td.flags, TD_CC) != OHCI_CC_NOERROR; 1126 } 1127 1128 /* Service an endpoint list. Returns nonzero if active TD were found. */ 1129 static int ohci_service_ed_list(OHCIState *ohci, uint32_t head, int completion) 1130 { 1131 struct ohci_ed ed; 1132 uint32_t next_ed; 1133 uint32_t cur; 1134 int active; 1135 uint32_t link_cnt = 0; 1136 active = 0; 1137 1138 if (head == 0) 1139 return 0; 1140 1141 for (cur = head; cur && link_cnt++ < ED_LINK_LIMIT; cur = next_ed) { 1142 if (ohci_read_ed(ohci, cur, &ed)) { 1143 trace_usb_ohci_ed_read_error(cur); 1144 ohci_die(ohci); 1145 return 0; 1146 } 1147 1148 next_ed = ed.next & OHCI_DPTR_MASK; 1149 1150 if ((ed.head & OHCI_ED_H) || (ed.flags & OHCI_ED_K)) { 1151 uint32_t addr; 1152 /* Cancel pending packets for ED that have been paused. */ 1153 addr = ed.head & OHCI_DPTR_MASK; 1154 if (ohci->async_td && addr == ohci->async_td) { 1155 usb_cancel_packet(&ohci->usb_packet); 1156 ohci->async_td = 0; 1157 usb_device_ep_stopped(ohci->usb_packet.ep->dev, 1158 ohci->usb_packet.ep); 1159 } 1160 continue; 1161 } 1162 1163 while ((ed.head & OHCI_DPTR_MASK) != ed.tail) { 1164 trace_usb_ohci_ed_pkt(cur, (ed.head & OHCI_ED_H) != 0, 1165 (ed.head & OHCI_ED_C) != 0, ed.head & OHCI_DPTR_MASK, 1166 ed.tail & OHCI_DPTR_MASK, ed.next & OHCI_DPTR_MASK); 1167 trace_usb_ohci_ed_pkt_flags( 1168 OHCI_BM(ed.flags, ED_FA), OHCI_BM(ed.flags, ED_EN), 1169 OHCI_BM(ed.flags, ED_D), (ed.flags & OHCI_ED_S)!= 0, 1170 (ed.flags & OHCI_ED_K) != 0, (ed.flags & OHCI_ED_F) != 0, 1171 OHCI_BM(ed.flags, ED_MPS)); 1172 1173 active = 1; 1174 1175 if ((ed.flags & OHCI_ED_F) == 0) { 1176 if (ohci_service_td(ohci, &ed)) 1177 break; 1178 } else { 1179 /* Handle isochronous endpoints */ 1180 if (ohci_service_iso_td(ohci, &ed, completion)) 1181 break; 1182 } 1183 } 1184 1185 if (ohci_put_ed(ohci, cur, &ed)) { 1186 ohci_die(ohci); 1187 return 0; 1188 } 1189 } 1190 1191 return active; 1192 } 1193 1194 /* set a timer for EOF */ 1195 static void ohci_eof_timer(OHCIState *ohci) 1196 { 1197 timer_mod(ohci->eof_timer, ohci->sof_time + usb_frame_time); 1198 } 1199 /* Set a timer for EOF and generate a SOF event */ 1200 static void ohci_sof(OHCIState *ohci) 1201 { 1202 ohci->sof_time += usb_frame_time; 1203 ohci_eof_timer(ohci); 1204 ohci_set_interrupt(ohci, OHCI_INTR_SF); 1205 } 1206 1207 /* Process Control and Bulk lists. */ 1208 static void ohci_process_lists(OHCIState *ohci, int completion) 1209 { 1210 if ((ohci->ctl & OHCI_CTL_CLE) && (ohci->status & OHCI_STATUS_CLF)) { 1211 if (ohci->ctrl_cur && ohci->ctrl_cur != ohci->ctrl_head) { 1212 trace_usb_ohci_process_lists(ohci->ctrl_head, ohci->ctrl_cur); 1213 } 1214 if (!ohci_service_ed_list(ohci, ohci->ctrl_head, completion)) { 1215 ohci->ctrl_cur = 0; 1216 ohci->status &= ~OHCI_STATUS_CLF; 1217 } 1218 } 1219 1220 if ((ohci->ctl & OHCI_CTL_BLE) && (ohci->status & OHCI_STATUS_BLF)) { 1221 if (!ohci_service_ed_list(ohci, ohci->bulk_head, completion)) { 1222 ohci->bulk_cur = 0; 1223 ohci->status &= ~OHCI_STATUS_BLF; 1224 } 1225 } 1226 } 1227 1228 /* Do frame processing on frame boundary */ 1229 static void ohci_frame_boundary(void *opaque) 1230 { 1231 OHCIState *ohci = opaque; 1232 struct ohci_hcca hcca; 1233 1234 if (ohci_read_hcca(ohci, ohci->hcca, &hcca)) { 1235 trace_usb_ohci_hcca_read_error(ohci->hcca); 1236 ohci_die(ohci); 1237 return; 1238 } 1239 1240 /* Process all the lists at the end of the frame */ 1241 if (ohci->ctl & OHCI_CTL_PLE) { 1242 int n; 1243 1244 n = ohci->frame_number & 0x1f; 1245 ohci_service_ed_list(ohci, le32_to_cpu(hcca.intr[n]), 0); 1246 } 1247 1248 /* Cancel all pending packets if either of the lists has been disabled. */ 1249 if (ohci->old_ctl & (~ohci->ctl) & (OHCI_CTL_BLE | OHCI_CTL_CLE)) { 1250 if (ohci->async_td) { 1251 usb_cancel_packet(&ohci->usb_packet); 1252 ohci->async_td = 0; 1253 } 1254 ohci_stop_endpoints(ohci); 1255 } 1256 ohci->old_ctl = ohci->ctl; 1257 ohci_process_lists(ohci, 0); 1258 1259 /* Stop if UnrecoverableError happened or ohci_sof will crash */ 1260 if (ohci->intr_status & OHCI_INTR_UE) { 1261 return; 1262 } 1263 1264 /* Frame boundary, so do EOF stuf here */ 1265 ohci->frt = ohci->fit; 1266 1267 /* Increment frame number and take care of endianness. */ 1268 ohci->frame_number = (ohci->frame_number + 1) & 0xffff; 1269 hcca.frame = cpu_to_le16(ohci->frame_number); 1270 1271 if (ohci->done_count == 0 && !(ohci->intr_status & OHCI_INTR_WD)) { 1272 if (!ohci->done) 1273 abort(); 1274 if (ohci->intr & ohci->intr_status) 1275 ohci->done |= 1; 1276 hcca.done = cpu_to_le32(ohci->done); 1277 ohci->done = 0; 1278 ohci->done_count = 7; 1279 ohci_set_interrupt(ohci, OHCI_INTR_WD); 1280 } 1281 1282 if (ohci->done_count != 7 && ohci->done_count != 0) 1283 ohci->done_count--; 1284 1285 /* Do SOF stuff here */ 1286 ohci_sof(ohci); 1287 1288 /* Writeback HCCA */ 1289 if (ohci_put_hcca(ohci, ohci->hcca, &hcca)) { 1290 ohci_die(ohci); 1291 } 1292 } 1293 1294 /* Start sending SOF tokens across the USB bus, lists are processed in 1295 * next frame 1296 */ 1297 static int ohci_bus_start(OHCIState *ohci) 1298 { 1299 trace_usb_ohci_start(ohci->name); 1300 1301 /* Delay the first SOF event by one frame time as 1302 * linux driver is not ready to receive it and 1303 * can meet some race conditions 1304 */ 1305 1306 ohci->sof_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 1307 ohci_eof_timer(ohci); 1308 1309 return 1; 1310 } 1311 1312 /* Stop sending SOF tokens on the bus */ 1313 void ohci_bus_stop(OHCIState *ohci) 1314 { 1315 trace_usb_ohci_stop(ohci->name); 1316 timer_del(ohci->eof_timer); 1317 } 1318 1319 /* Sets a flag in a port status register but only set it if the port is 1320 * connected, if not set ConnectStatusChange flag. If flag is enabled 1321 * return 1. 1322 */ 1323 static int ohci_port_set_if_connected(OHCIState *ohci, int i, uint32_t val) 1324 { 1325 int ret = 1; 1326 1327 /* writing a 0 has no effect */ 1328 if (val == 0) 1329 return 0; 1330 1331 /* If CurrentConnectStatus is cleared we set 1332 * ConnectStatusChange 1333 */ 1334 if (!(ohci->rhport[i].ctrl & OHCI_PORT_CCS)) { 1335 ohci->rhport[i].ctrl |= OHCI_PORT_CSC; 1336 if (ohci->rhstatus & OHCI_RHS_DRWE) { 1337 /* TODO: CSC is a wakeup event */ 1338 } 1339 return 0; 1340 } 1341 1342 if (ohci->rhport[i].ctrl & val) 1343 ret = 0; 1344 1345 /* set the bit */ 1346 ohci->rhport[i].ctrl |= val; 1347 1348 return ret; 1349 } 1350 1351 /* Set the frame interval - frame interval toggle is manipulated by the hcd only */ 1352 static void ohci_set_frame_interval(OHCIState *ohci, uint16_t val) 1353 { 1354 val &= OHCI_FMI_FI; 1355 1356 if (val != ohci->fi) { 1357 trace_usb_ohci_set_frame_interval(ohci->name, ohci->fi, ohci->fi); 1358 } 1359 1360 ohci->fi = val; 1361 } 1362 1363 static void ohci_port_power(OHCIState *ohci, int i, int p) 1364 { 1365 if (p) { 1366 ohci->rhport[i].ctrl |= OHCI_PORT_PPS; 1367 } else { 1368 ohci->rhport[i].ctrl &= ~(OHCI_PORT_PPS| 1369 OHCI_PORT_CCS| 1370 OHCI_PORT_PSS| 1371 OHCI_PORT_PRS); 1372 } 1373 } 1374 1375 /* Set HcControlRegister */ 1376 static void ohci_set_ctl(OHCIState *ohci, uint32_t val) 1377 { 1378 uint32_t old_state; 1379 uint32_t new_state; 1380 1381 old_state = ohci->ctl & OHCI_CTL_HCFS; 1382 ohci->ctl = val; 1383 new_state = ohci->ctl & OHCI_CTL_HCFS; 1384 1385 /* no state change */ 1386 if (old_state == new_state) 1387 return; 1388 1389 trace_usb_ohci_set_ctl(ohci->name, new_state); 1390 switch (new_state) { 1391 case OHCI_USB_OPERATIONAL: 1392 ohci_bus_start(ohci); 1393 break; 1394 case OHCI_USB_SUSPEND: 1395 ohci_bus_stop(ohci); 1396 /* clear pending SF otherwise linux driver loops in ohci_irq() */ 1397 ohci->intr_status &= ~OHCI_INTR_SF; 1398 ohci_intr_update(ohci); 1399 break; 1400 case OHCI_USB_RESUME: 1401 trace_usb_ohci_resume(ohci->name); 1402 break; 1403 case OHCI_USB_RESET: 1404 ohci_roothub_reset(ohci); 1405 break; 1406 } 1407 } 1408 1409 static uint32_t ohci_get_frame_remaining(OHCIState *ohci) 1410 { 1411 uint16_t fr; 1412 int64_t tks; 1413 1414 if ((ohci->ctl & OHCI_CTL_HCFS) != OHCI_USB_OPERATIONAL) 1415 return (ohci->frt << 31); 1416 1417 /* Being in USB operational state guarnatees sof_time was 1418 * set already. 1419 */ 1420 tks = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - ohci->sof_time; 1421 if (tks < 0) { 1422 tks = 0; 1423 } 1424 1425 /* avoid muldiv if possible */ 1426 if (tks >= usb_frame_time) 1427 return (ohci->frt << 31); 1428 1429 tks = tks / usb_bit_time; 1430 fr = (uint16_t)(ohci->fi - tks); 1431 1432 return (ohci->frt << 31) | fr; 1433 } 1434 1435 1436 /* Set root hub status */ 1437 static void ohci_set_hub_status(OHCIState *ohci, uint32_t val) 1438 { 1439 uint32_t old_state; 1440 1441 old_state = ohci->rhstatus; 1442 1443 /* write 1 to clear OCIC */ 1444 if (val & OHCI_RHS_OCIC) 1445 ohci->rhstatus &= ~OHCI_RHS_OCIC; 1446 1447 if (val & OHCI_RHS_LPS) { 1448 int i; 1449 1450 for (i = 0; i < ohci->num_ports; i++) 1451 ohci_port_power(ohci, i, 0); 1452 trace_usb_ohci_hub_power_down(); 1453 } 1454 1455 if (val & OHCI_RHS_LPSC) { 1456 int i; 1457 1458 for (i = 0; i < ohci->num_ports; i++) 1459 ohci_port_power(ohci, i, 1); 1460 trace_usb_ohci_hub_power_up(); 1461 } 1462 1463 if (val & OHCI_RHS_DRWE) 1464 ohci->rhstatus |= OHCI_RHS_DRWE; 1465 1466 if (val & OHCI_RHS_CRWE) 1467 ohci->rhstatus &= ~OHCI_RHS_DRWE; 1468 1469 if (old_state != ohci->rhstatus) 1470 ohci_set_interrupt(ohci, OHCI_INTR_RHSC); 1471 } 1472 1473 /* Set root hub port status */ 1474 static void ohci_port_set_status(OHCIState *ohci, int portnum, uint32_t val) 1475 { 1476 uint32_t old_state; 1477 OHCIPort *port; 1478 1479 port = &ohci->rhport[portnum]; 1480 old_state = port->ctrl; 1481 1482 /* Write to clear CSC, PESC, PSSC, OCIC, PRSC */ 1483 if (val & OHCI_PORT_WTC) 1484 port->ctrl &= ~(val & OHCI_PORT_WTC); 1485 1486 if (val & OHCI_PORT_CCS) 1487 port->ctrl &= ~OHCI_PORT_PES; 1488 1489 ohci_port_set_if_connected(ohci, portnum, val & OHCI_PORT_PES); 1490 1491 if (ohci_port_set_if_connected(ohci, portnum, val & OHCI_PORT_PSS)) { 1492 trace_usb_ohci_port_suspend(portnum); 1493 } 1494 1495 if (ohci_port_set_if_connected(ohci, portnum, val & OHCI_PORT_PRS)) { 1496 trace_usb_ohci_port_reset(portnum); 1497 usb_device_reset(port->port.dev); 1498 port->ctrl &= ~OHCI_PORT_PRS; 1499 /* ??? Should this also set OHCI_PORT_PESC. */ 1500 port->ctrl |= OHCI_PORT_PES | OHCI_PORT_PRSC; 1501 } 1502 1503 /* Invert order here to ensure in ambiguous case, device is 1504 * powered up... 1505 */ 1506 if (val & OHCI_PORT_LSDA) 1507 ohci_port_power(ohci, portnum, 0); 1508 if (val & OHCI_PORT_PPS) 1509 ohci_port_power(ohci, portnum, 1); 1510 1511 if (old_state != port->ctrl) 1512 ohci_set_interrupt(ohci, OHCI_INTR_RHSC); 1513 } 1514 1515 static uint64_t ohci_mem_read(void *opaque, 1516 hwaddr addr, 1517 unsigned size) 1518 { 1519 OHCIState *ohci = opaque; 1520 uint32_t retval; 1521 1522 /* Only aligned reads are allowed on OHCI */ 1523 if (addr & 3) { 1524 trace_usb_ohci_mem_read_unaligned(addr); 1525 return 0xffffffff; 1526 } else if (addr >= 0x54 && addr < 0x54 + ohci->num_ports * 4) { 1527 /* HcRhPortStatus */ 1528 retval = ohci->rhport[(addr - 0x54) >> 2].ctrl | OHCI_PORT_PPS; 1529 } else { 1530 switch (addr >> 2) { 1531 case 0: /* HcRevision */ 1532 retval = 0x10; 1533 break; 1534 1535 case 1: /* HcControl */ 1536 retval = ohci->ctl; 1537 break; 1538 1539 case 2: /* HcCommandStatus */ 1540 retval = ohci->status; 1541 break; 1542 1543 case 3: /* HcInterruptStatus */ 1544 retval = ohci->intr_status; 1545 break; 1546 1547 case 4: /* HcInterruptEnable */ 1548 case 5: /* HcInterruptDisable */ 1549 retval = ohci->intr; 1550 break; 1551 1552 case 6: /* HcHCCA */ 1553 retval = ohci->hcca; 1554 break; 1555 1556 case 7: /* HcPeriodCurrentED */ 1557 retval = ohci->per_cur; 1558 break; 1559 1560 case 8: /* HcControlHeadED */ 1561 retval = ohci->ctrl_head; 1562 break; 1563 1564 case 9: /* HcControlCurrentED */ 1565 retval = ohci->ctrl_cur; 1566 break; 1567 1568 case 10: /* HcBulkHeadED */ 1569 retval = ohci->bulk_head; 1570 break; 1571 1572 case 11: /* HcBulkCurrentED */ 1573 retval = ohci->bulk_cur; 1574 break; 1575 1576 case 12: /* HcDoneHead */ 1577 retval = ohci->done; 1578 break; 1579 1580 case 13: /* HcFmInterretval */ 1581 retval = (ohci->fit << 31) | (ohci->fsmps << 16) | (ohci->fi); 1582 break; 1583 1584 case 14: /* HcFmRemaining */ 1585 retval = ohci_get_frame_remaining(ohci); 1586 break; 1587 1588 case 15: /* HcFmNumber */ 1589 retval = ohci->frame_number; 1590 break; 1591 1592 case 16: /* HcPeriodicStart */ 1593 retval = ohci->pstart; 1594 break; 1595 1596 case 17: /* HcLSThreshold */ 1597 retval = ohci->lst; 1598 break; 1599 1600 case 18: /* HcRhDescriptorA */ 1601 retval = ohci->rhdesc_a; 1602 break; 1603 1604 case 19: /* HcRhDescriptorB */ 1605 retval = ohci->rhdesc_b; 1606 break; 1607 1608 case 20: /* HcRhStatus */ 1609 retval = ohci->rhstatus; 1610 break; 1611 1612 /* PXA27x specific registers */ 1613 case 24: /* HcStatus */ 1614 retval = ohci->hstatus & ohci->hmask; 1615 break; 1616 1617 case 25: /* HcHReset */ 1618 retval = ohci->hreset; 1619 break; 1620 1621 case 26: /* HcHInterruptEnable */ 1622 retval = ohci->hmask; 1623 break; 1624 1625 case 27: /* HcHInterruptTest */ 1626 retval = ohci->htest; 1627 break; 1628 1629 default: 1630 trace_usb_ohci_mem_read_bad_offset(addr); 1631 retval = 0xffffffff; 1632 } 1633 } 1634 1635 return retval; 1636 } 1637 1638 static void ohci_mem_write(void *opaque, 1639 hwaddr addr, 1640 uint64_t val, 1641 unsigned size) 1642 { 1643 OHCIState *ohci = opaque; 1644 1645 /* Only aligned reads are allowed on OHCI */ 1646 if (addr & 3) { 1647 trace_usb_ohci_mem_write_unaligned(addr); 1648 return; 1649 } 1650 1651 if (addr >= 0x54 && addr < 0x54 + ohci->num_ports * 4) { 1652 /* HcRhPortStatus */ 1653 ohci_port_set_status(ohci, (addr - 0x54) >> 2, val); 1654 return; 1655 } 1656 1657 switch (addr >> 2) { 1658 case 1: /* HcControl */ 1659 ohci_set_ctl(ohci, val); 1660 break; 1661 1662 case 2: /* HcCommandStatus */ 1663 /* SOC is read-only */ 1664 val = (val & ~OHCI_STATUS_SOC); 1665 1666 /* Bits written as '0' remain unchanged in the register */ 1667 ohci->status |= val; 1668 1669 if (ohci->status & OHCI_STATUS_HCR) 1670 ohci_soft_reset(ohci); 1671 break; 1672 1673 case 3: /* HcInterruptStatus */ 1674 ohci->intr_status &= ~val; 1675 ohci_intr_update(ohci); 1676 break; 1677 1678 case 4: /* HcInterruptEnable */ 1679 ohci->intr |= val; 1680 ohci_intr_update(ohci); 1681 break; 1682 1683 case 5: /* HcInterruptDisable */ 1684 ohci->intr &= ~val; 1685 ohci_intr_update(ohci); 1686 break; 1687 1688 case 6: /* HcHCCA */ 1689 ohci->hcca = val & OHCI_HCCA_MASK; 1690 break; 1691 1692 case 7: /* HcPeriodCurrentED */ 1693 /* Ignore writes to this read-only register, Linux does them */ 1694 break; 1695 1696 case 8: /* HcControlHeadED */ 1697 ohci->ctrl_head = val & OHCI_EDPTR_MASK; 1698 break; 1699 1700 case 9: /* HcControlCurrentED */ 1701 ohci->ctrl_cur = val & OHCI_EDPTR_MASK; 1702 break; 1703 1704 case 10: /* HcBulkHeadED */ 1705 ohci->bulk_head = val & OHCI_EDPTR_MASK; 1706 break; 1707 1708 case 11: /* HcBulkCurrentED */ 1709 ohci->bulk_cur = val & OHCI_EDPTR_MASK; 1710 break; 1711 1712 case 13: /* HcFmInterval */ 1713 ohci->fsmps = (val & OHCI_FMI_FSMPS) >> 16; 1714 ohci->fit = (val & OHCI_FMI_FIT) >> 31; 1715 ohci_set_frame_interval(ohci, val); 1716 break; 1717 1718 case 15: /* HcFmNumber */ 1719 break; 1720 1721 case 16: /* HcPeriodicStart */ 1722 ohci->pstart = val & 0xffff; 1723 break; 1724 1725 case 17: /* HcLSThreshold */ 1726 ohci->lst = val & 0xffff; 1727 break; 1728 1729 case 18: /* HcRhDescriptorA */ 1730 ohci->rhdesc_a &= ~OHCI_RHA_RW_MASK; 1731 ohci->rhdesc_a |= val & OHCI_RHA_RW_MASK; 1732 break; 1733 1734 case 19: /* HcRhDescriptorB */ 1735 break; 1736 1737 case 20: /* HcRhStatus */ 1738 ohci_set_hub_status(ohci, val); 1739 break; 1740 1741 /* PXA27x specific registers */ 1742 case 24: /* HcStatus */ 1743 ohci->hstatus &= ~(val & ohci->hmask); 1744 break; 1745 1746 case 25: /* HcHReset */ 1747 ohci->hreset = val & ~OHCI_HRESET_FSBIR; 1748 if (val & OHCI_HRESET_FSBIR) 1749 ohci_hard_reset(ohci); 1750 break; 1751 1752 case 26: /* HcHInterruptEnable */ 1753 ohci->hmask = val; 1754 break; 1755 1756 case 27: /* HcHInterruptTest */ 1757 ohci->htest = val; 1758 break; 1759 1760 default: 1761 trace_usb_ohci_mem_write_bad_offset(addr); 1762 break; 1763 } 1764 } 1765 1766 static void ohci_async_cancel_device(OHCIState *ohci, USBDevice *dev) 1767 { 1768 if (ohci->async_td && 1769 usb_packet_is_inflight(&ohci->usb_packet) && 1770 ohci->usb_packet.ep->dev == dev) { 1771 usb_cancel_packet(&ohci->usb_packet); 1772 ohci->async_td = 0; 1773 } 1774 } 1775 1776 static const MemoryRegionOps ohci_mem_ops = { 1777 .read = ohci_mem_read, 1778 .write = ohci_mem_write, 1779 .endianness = DEVICE_LITTLE_ENDIAN, 1780 }; 1781 1782 static USBPortOps ohci_port_ops = { 1783 .attach = ohci_attach, 1784 .detach = ohci_detach, 1785 .child_detach = ohci_child_detach, 1786 .wakeup = ohci_wakeup, 1787 .complete = ohci_async_complete_packet, 1788 }; 1789 1790 static USBBusOps ohci_bus_ops = { 1791 }; 1792 1793 void usb_ohci_init(OHCIState *ohci, DeviceState *dev, uint32_t num_ports, 1794 dma_addr_t localmem_base, char *masterbus, 1795 uint32_t firstport, AddressSpace *as, 1796 void (*ohci_die_fn)(struct OHCIState *), Error **errp) 1797 { 1798 Error *err = NULL; 1799 int i; 1800 1801 ohci->as = as; 1802 ohci->ohci_die = ohci_die_fn; 1803 1804 if (num_ports > OHCI_MAX_PORTS) { 1805 error_setg(errp, "OHCI num-ports=%u is too big (limit is %u ports)", 1806 num_ports, OHCI_MAX_PORTS); 1807 return; 1808 } 1809 1810 if (usb_frame_time == 0) { 1811 #ifdef OHCI_TIME_WARP 1812 usb_frame_time = NANOSECONDS_PER_SECOND; 1813 usb_bit_time = NANOSECONDS_PER_SECOND / (USB_HZ / 1000); 1814 #else 1815 usb_frame_time = NANOSECONDS_PER_SECOND / 1000; 1816 if (NANOSECONDS_PER_SECOND >= USB_HZ) { 1817 usb_bit_time = NANOSECONDS_PER_SECOND / USB_HZ; 1818 } else { 1819 usb_bit_time = 1; 1820 } 1821 #endif 1822 trace_usb_ohci_init_time(usb_frame_time, usb_bit_time); 1823 } 1824 1825 ohci->num_ports = num_ports; 1826 if (masterbus) { 1827 USBPort *ports[OHCI_MAX_PORTS]; 1828 for(i = 0; i < num_ports; i++) { 1829 ports[i] = &ohci->rhport[i].port; 1830 } 1831 usb_register_companion(masterbus, ports, num_ports, 1832 firstport, ohci, &ohci_port_ops, 1833 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL, 1834 &err); 1835 if (err) { 1836 error_propagate(errp, err); 1837 return; 1838 } 1839 } else { 1840 usb_bus_new(&ohci->bus, sizeof(ohci->bus), &ohci_bus_ops, dev); 1841 for (i = 0; i < num_ports; i++) { 1842 usb_register_port(&ohci->bus, &ohci->rhport[i].port, 1843 ohci, i, &ohci_port_ops, 1844 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL); 1845 } 1846 } 1847 1848 memory_region_init_io(&ohci->mem, OBJECT(dev), &ohci_mem_ops, 1849 ohci, "ohci", 256); 1850 ohci->localmem_base = localmem_base; 1851 1852 ohci->name = object_get_typename(OBJECT(dev)); 1853 usb_packet_init(&ohci->usb_packet); 1854 1855 ohci->async_td = 0; 1856 1857 ohci->eof_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, 1858 ohci_frame_boundary, ohci); 1859 } 1860 1861 /** 1862 * A typical OHCI will stop operating and set itself into error state 1863 * (which can be queried by MMIO) to signal that it got an error. 1864 */ 1865 void ohci_sysbus_die(struct OHCIState *ohci) 1866 { 1867 trace_usb_ohci_die(); 1868 1869 ohci_set_interrupt(ohci, OHCI_INTR_UE); 1870 ohci_bus_stop(ohci); 1871 } 1872 1873 #define TYPE_SYSBUS_OHCI "sysbus-ohci" 1874 #define SYSBUS_OHCI(obj) OBJECT_CHECK(OHCISysBusState, (obj), TYPE_SYSBUS_OHCI) 1875 1876 typedef struct { 1877 /*< private >*/ 1878 SysBusDevice parent_obj; 1879 /*< public >*/ 1880 1881 OHCIState ohci; 1882 char *masterbus; 1883 uint32_t num_ports; 1884 uint32_t firstport; 1885 dma_addr_t dma_offset; 1886 } OHCISysBusState; 1887 1888 static void ohci_realize_pxa(DeviceState *dev, Error **errp) 1889 { 1890 OHCISysBusState *s = SYSBUS_OHCI(dev); 1891 SysBusDevice *sbd = SYS_BUS_DEVICE(dev); 1892 Error *err = NULL; 1893 1894 usb_ohci_init(&s->ohci, dev, s->num_ports, s->dma_offset, 1895 s->masterbus, s->firstport, 1896 &address_space_memory, ohci_sysbus_die, &err); 1897 if (err) { 1898 error_propagate(errp, err); 1899 return; 1900 } 1901 sysbus_init_irq(sbd, &s->ohci.irq); 1902 sysbus_init_mmio(sbd, &s->ohci.mem); 1903 } 1904 1905 static void usb_ohci_reset_sysbus(DeviceState *dev) 1906 { 1907 OHCISysBusState *s = SYSBUS_OHCI(dev); 1908 OHCIState *ohci = &s->ohci; 1909 1910 ohci_hard_reset(ohci); 1911 } 1912 1913 static const VMStateDescription vmstate_ohci_state_port = { 1914 .name = "ohci-core/port", 1915 .version_id = 1, 1916 .minimum_version_id = 1, 1917 .fields = (VMStateField[]) { 1918 VMSTATE_UINT32(ctrl, OHCIPort), 1919 VMSTATE_END_OF_LIST() 1920 }, 1921 }; 1922 1923 static bool ohci_eof_timer_needed(void *opaque) 1924 { 1925 OHCIState *ohci = opaque; 1926 1927 return timer_pending(ohci->eof_timer); 1928 } 1929 1930 static const VMStateDescription vmstate_ohci_eof_timer = { 1931 .name = "ohci-core/eof-timer", 1932 .version_id = 1, 1933 .minimum_version_id = 1, 1934 .needed = ohci_eof_timer_needed, 1935 .fields = (VMStateField[]) { 1936 VMSTATE_TIMER_PTR(eof_timer, OHCIState), 1937 VMSTATE_END_OF_LIST() 1938 }, 1939 }; 1940 1941 const VMStateDescription vmstate_ohci_state = { 1942 .name = "ohci-core", 1943 .version_id = 1, 1944 .minimum_version_id = 1, 1945 .fields = (VMStateField[]) { 1946 VMSTATE_INT64(sof_time, OHCIState), 1947 VMSTATE_UINT32(ctl, OHCIState), 1948 VMSTATE_UINT32(status, OHCIState), 1949 VMSTATE_UINT32(intr_status, OHCIState), 1950 VMSTATE_UINT32(intr, OHCIState), 1951 VMSTATE_UINT32(hcca, OHCIState), 1952 VMSTATE_UINT32(ctrl_head, OHCIState), 1953 VMSTATE_UINT32(ctrl_cur, OHCIState), 1954 VMSTATE_UINT32(bulk_head, OHCIState), 1955 VMSTATE_UINT32(bulk_cur, OHCIState), 1956 VMSTATE_UINT32(per_cur, OHCIState), 1957 VMSTATE_UINT32(done, OHCIState), 1958 VMSTATE_INT32(done_count, OHCIState), 1959 VMSTATE_UINT16(fsmps, OHCIState), 1960 VMSTATE_UINT8(fit, OHCIState), 1961 VMSTATE_UINT16(fi, OHCIState), 1962 VMSTATE_UINT8(frt, OHCIState), 1963 VMSTATE_UINT16(frame_number, OHCIState), 1964 VMSTATE_UINT16(padding, OHCIState), 1965 VMSTATE_UINT32(pstart, OHCIState), 1966 VMSTATE_UINT32(lst, OHCIState), 1967 VMSTATE_UINT32(rhdesc_a, OHCIState), 1968 VMSTATE_UINT32(rhdesc_b, OHCIState), 1969 VMSTATE_UINT32(rhstatus, OHCIState), 1970 VMSTATE_STRUCT_ARRAY(rhport, OHCIState, OHCI_MAX_PORTS, 0, 1971 vmstate_ohci_state_port, OHCIPort), 1972 VMSTATE_UINT32(hstatus, OHCIState), 1973 VMSTATE_UINT32(hmask, OHCIState), 1974 VMSTATE_UINT32(hreset, OHCIState), 1975 VMSTATE_UINT32(htest, OHCIState), 1976 VMSTATE_UINT32(old_ctl, OHCIState), 1977 VMSTATE_UINT8_ARRAY(usb_buf, OHCIState, 8192), 1978 VMSTATE_UINT32(async_td, OHCIState), 1979 VMSTATE_BOOL(async_complete, OHCIState), 1980 VMSTATE_END_OF_LIST() 1981 }, 1982 .subsections = (const VMStateDescription*[]) { 1983 &vmstate_ohci_eof_timer, 1984 NULL 1985 } 1986 }; 1987 1988 static Property ohci_sysbus_properties[] = { 1989 DEFINE_PROP_STRING("masterbus", OHCISysBusState, masterbus), 1990 DEFINE_PROP_UINT32("num-ports", OHCISysBusState, num_ports, 3), 1991 DEFINE_PROP_UINT32("firstport", OHCISysBusState, firstport, 0), 1992 DEFINE_PROP_DMAADDR("dma-offset", OHCISysBusState, dma_offset, 0), 1993 DEFINE_PROP_END_OF_LIST(), 1994 }; 1995 1996 static void ohci_sysbus_class_init(ObjectClass *klass, void *data) 1997 { 1998 DeviceClass *dc = DEVICE_CLASS(klass); 1999 2000 dc->realize = ohci_realize_pxa; 2001 set_bit(DEVICE_CATEGORY_USB, dc->categories); 2002 dc->desc = "OHCI USB Controller"; 2003 dc->props = ohci_sysbus_properties; 2004 dc->reset = usb_ohci_reset_sysbus; 2005 } 2006 2007 static const TypeInfo ohci_sysbus_info = { 2008 .name = TYPE_SYSBUS_OHCI, 2009 .parent = TYPE_SYS_BUS_DEVICE, 2010 .instance_size = sizeof(OHCISysBusState), 2011 .class_init = ohci_sysbus_class_init, 2012 }; 2013 2014 static void ohci_register_types(void) 2015 { 2016 type_register_static(&ohci_sysbus_info); 2017 } 2018 2019 type_init(ohci_register_types) 2020