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memory: Rename readable flag to romd_mode
[qemu/ar7.git] / hw / usb / hcd-ohci.c
blob51241cda78cca93ed580938b13baf9b990ad0a36
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 Handle unrecoverable errors properly
26 * o BIOS work to boot from USB storage
27 */
28
29 #include "hw/hw.h"
30 #include "qemu/timer.h"
31 #include "hw/usb.h"
32 #include "hw/pci/pci.h"
33 #include "hw/sysbus.h"
34 #include "hw/qdev-dma.h"
35
36 //#define DEBUG_OHCI
37 /* Dump packet contents. */
38 //#define DEBUG_PACKET
39 //#define DEBUG_ISOCH
40 /* This causes frames to occur 1000x slower */
41 //#define OHCI_TIME_WARP 1
42
43 #ifdef DEBUG_OHCI
44 #define DPRINTF printf
45 #else
46 #define DPRINTF(...)
47 #endif
48
49 /* Number of Downstream Ports on the root hub. */
50
51 #define OHCI_MAX_PORTS 15
52
53 static int64_t usb_frame_time;
54 static int64_t usb_bit_time;
55
56 typedef struct OHCIPort {
57 USBPort port;
58 uint32_t ctrl;
59 } OHCIPort;
60
61 typedef struct {
62 USBBus bus;
63 qemu_irq irq;
64 MemoryRegion mem;
65 DMAContext *dma;
66 int num_ports;
67 const char *name;
68
69 QEMUTimer *eof_timer;
70 int64_t sof_time;
71
72 /* OHCI state */
73 /* Control partition */
74 uint32_t ctl, status;
75 uint32_t intr_status;
76 uint32_t intr;
77
78 /* memory pointer partition */
79 uint32_t hcca;
80 uint32_t ctrl_head, ctrl_cur;
81 uint32_t bulk_head, bulk_cur;
82 uint32_t per_cur;
83 uint32_t done;
84 int done_count;
85
86 /* Frame counter partition */
87 uint32_t fsmps:15;
88 uint32_t fit:1;
89 uint32_t fi:14;
90 uint32_t frt:1;
91 uint16_t frame_number;
92 uint16_t padding;
93 uint32_t pstart;
94 uint32_t lst;
95
96 /* Root Hub partition */
97 uint32_t rhdesc_a, rhdesc_b;
98 uint32_t rhstatus;
99 OHCIPort rhport[OHCI_MAX_PORTS];
100
101 /* PXA27x Non-OHCI events */
102 uint32_t hstatus;
103 uint32_t hmask;
104 uint32_t hreset;
105 uint32_t htest;
106
107 /* SM501 local memory offset */
108 dma_addr_t localmem_base;
109
110 /* Active packets. */
111 uint32_t old_ctl;
112 USBPacket usb_packet;
113 uint8_t usb_buf[8192];
114 uint32_t async_td;
115 int async_complete;
116
117 } OHCIState;
118
119 /* Host Controller Communications Area */
120 struct ohci_hcca {
121 uint32_t intr[32];
122 uint16_t frame, pad;
123 uint32_t done;
124 };
125 #define HCCA_WRITEBACK_OFFSET offsetof(struct ohci_hcca, frame)
126 #define HCCA_WRITEBACK_SIZE 8 /* frame, pad, done */
127
128 #define ED_WBACK_OFFSET offsetof(struct ohci_ed, head)
129 #define ED_WBACK_SIZE 4
130
131 static void ohci_bus_stop(OHCIState *ohci);
132 static void ohci_async_cancel_device(OHCIState *ohci, USBDevice *dev);
133
134 /* Bitfields for the first word of an Endpoint Desciptor. */
135 #define OHCI_ED_FA_SHIFT 0
136 #define OHCI_ED_FA_MASK (0x7f<<OHCI_ED_FA_SHIFT)
137 #define OHCI_ED_EN_SHIFT 7
138 #define OHCI_ED_EN_MASK (0xf<<OHCI_ED_EN_SHIFT)
139 #define OHCI_ED_D_SHIFT 11
140 #define OHCI_ED_D_MASK (3<<OHCI_ED_D_SHIFT)
141 #define OHCI_ED_S (1<<13)
142 #define OHCI_ED_K (1<<14)
143 #define OHCI_ED_F (1<<15)
144 #define OHCI_ED_MPS_SHIFT 16
145 #define OHCI_ED_MPS_MASK (0x7ff<<OHCI_ED_MPS_SHIFT)
146
147 /* Flags in the head field of an Endpoint Desciptor. */
148 #define OHCI_ED_H 1
149 #define OHCI_ED_C 2
150
151 /* Bitfields for the first word of a Transfer Desciptor. */
152 #define OHCI_TD_R (1<<18)
153 #define OHCI_TD_DP_SHIFT 19
154 #define OHCI_TD_DP_MASK (3<<OHCI_TD_DP_SHIFT)
155 #define OHCI_TD_DI_SHIFT 21
156 #define OHCI_TD_DI_MASK (7<<OHCI_TD_DI_SHIFT)
157 #define OHCI_TD_T0 (1<<24)
158 #define OHCI_TD_T1 (1<<25)
159 #define OHCI_TD_EC_SHIFT 26
160 #define OHCI_TD_EC_MASK (3<<OHCI_TD_EC_SHIFT)
161 #define OHCI_TD_CC_SHIFT 28
162 #define OHCI_TD_CC_MASK (0xf<<OHCI_TD_CC_SHIFT)
163
164 /* Bitfields for the first word of an Isochronous Transfer Desciptor. */
165 /* CC & DI - same as in the General Transfer Desciptor */
166 #define OHCI_TD_SF_SHIFT 0
167 #define OHCI_TD_SF_MASK (0xffff<<OHCI_TD_SF_SHIFT)
168 #define OHCI_TD_FC_SHIFT 24
169 #define OHCI_TD_FC_MASK (7<<OHCI_TD_FC_SHIFT)
170
171 /* Isochronous Transfer Desciptor - Offset / PacketStatusWord */
172 #define OHCI_TD_PSW_CC_SHIFT 12
173 #define OHCI_TD_PSW_CC_MASK (0xf<<OHCI_TD_PSW_CC_SHIFT)
174 #define OHCI_TD_PSW_SIZE_SHIFT 0
175 #define OHCI_TD_PSW_SIZE_MASK (0xfff<<OHCI_TD_PSW_SIZE_SHIFT)
176
177 #define OHCI_PAGE_MASK 0xfffff000
178 #define OHCI_OFFSET_MASK 0xfff
179
180 #define OHCI_DPTR_MASK 0xfffffff0
181
182 #define OHCI_BM(val, field) \
183 (((val) & OHCI_##field##_MASK) >> OHCI_##field##_SHIFT)
184
185 #define OHCI_SET_BM(val, field, newval) do { \
186 val &= ~OHCI_##field##_MASK; \
187 val |= ((newval) << OHCI_##field##_SHIFT) & OHCI_##field##_MASK; \
188 } while(0)
189
190 /* endpoint descriptor */
191 struct ohci_ed {
192 uint32_t flags;
193 uint32_t tail;
194 uint32_t head;
195 uint32_t next;
196 };
197
198 /* General transfer descriptor */
199 struct ohci_td {
200 uint32_t flags;
201 uint32_t cbp;
202 uint32_t next;
203 uint32_t be;
204 };
205
206 /* Isochronous transfer descriptor */
207 struct ohci_iso_td {
208 uint32_t flags;
209 uint32_t bp;
210 uint32_t next;
211 uint32_t be;
212 uint16_t offset[8];
213 };
214
215 #define USB_HZ 12000000
216
217 /* OHCI Local stuff */
218 #define OHCI_CTL_CBSR ((1<<0)|(1<<1))
219 #define OHCI_CTL_PLE (1<<2)
220 #define OHCI_CTL_IE (1<<3)
221 #define OHCI_CTL_CLE (1<<4)
222 #define OHCI_CTL_BLE (1<<5)
223 #define OHCI_CTL_HCFS ((1<<6)|(1<<7))
224 #define OHCI_USB_RESET 0x00
225 #define OHCI_USB_RESUME 0x40
226 #define OHCI_USB_OPERATIONAL 0x80
227 #define OHCI_USB_SUSPEND 0xc0
228 #define OHCI_CTL_IR (1<<8)
229 #define OHCI_CTL_RWC (1<<9)
230 #define OHCI_CTL_RWE (1<<10)
231
232 #define OHCI_STATUS_HCR (1<<0)
233 #define OHCI_STATUS_CLF (1<<1)
234 #define OHCI_STATUS_BLF (1<<2)
235 #define OHCI_STATUS_OCR (1<<3)
236 #define OHCI_STATUS_SOC ((1<<6)|(1<<7))
237
238 #define OHCI_INTR_SO (1<<0) /* Scheduling overrun */
239 #define OHCI_INTR_WD (1<<1) /* HcDoneHead writeback */
240 #define OHCI_INTR_SF (1<<2) /* Start of frame */
241 #define OHCI_INTR_RD (1<<3) /* Resume detect */
242 #define OHCI_INTR_UE (1<<4) /* Unrecoverable error */
243 #define OHCI_INTR_FNO (1<<5) /* Frame number overflow */
244 #define OHCI_INTR_RHSC (1<<6) /* Root hub status change */
245 #define OHCI_INTR_OC (1<<30) /* Ownership change */
246 #define OHCI_INTR_MIE (1<<31) /* Master Interrupt Enable */
247
248 #define OHCI_HCCA_SIZE 0x100
249 #define OHCI_HCCA_MASK 0xffffff00
250
251 #define OHCI_EDPTR_MASK 0xfffffff0
252
253 #define OHCI_FMI_FI 0x00003fff
254 #define OHCI_FMI_FSMPS 0xffff0000
255 #define OHCI_FMI_FIT 0x80000000
256
257 #define OHCI_FR_RT (1<<31)
258
259 #define OHCI_LS_THRESH 0x628
260
261 #define OHCI_RHA_RW_MASK 0x00000000 /* Mask of supported features. */
262 #define OHCI_RHA_PSM (1<<8)
263 #define OHCI_RHA_NPS (1<<9)
264 #define OHCI_RHA_DT (1<<10)
265 #define OHCI_RHA_OCPM (1<<11)
266 #define OHCI_RHA_NOCP (1<<12)
267 #define OHCI_RHA_POTPGT_MASK 0xff000000
268
269 #define OHCI_RHS_LPS (1<<0)
270 #define OHCI_RHS_OCI (1<<1)
271 #define OHCI_RHS_DRWE (1<<15)
272 #define OHCI_RHS_LPSC (1<<16)
273 #define OHCI_RHS_OCIC (1<<17)
274 #define OHCI_RHS_CRWE (1<<31)
275
276 #define OHCI_PORT_CCS (1<<0)
277 #define OHCI_PORT_PES (1<<1)
278 #define OHCI_PORT_PSS (1<<2)
279 #define OHCI_PORT_POCI (1<<3)
280 #define OHCI_PORT_PRS (1<<4)
281 #define OHCI_PORT_PPS (1<<8)
282 #define OHCI_PORT_LSDA (1<<9)
283 #define OHCI_PORT_CSC (1<<16)
284 #define OHCI_PORT_PESC (1<<17)
285 #define OHCI_PORT_PSSC (1<<18)
286 #define OHCI_PORT_OCIC (1<<19)
287 #define OHCI_PORT_PRSC (1<<20)
288 #define OHCI_PORT_WTC (OHCI_PORT_CSC|OHCI_PORT_PESC|OHCI_PORT_PSSC \
289 |OHCI_PORT_OCIC|OHCI_PORT_PRSC)
290
291 #define OHCI_TD_DIR_SETUP 0x0
292 #define OHCI_TD_DIR_OUT 0x1
293 #define OHCI_TD_DIR_IN 0x2
294 #define OHCI_TD_DIR_RESERVED 0x3
295
296 #define OHCI_CC_NOERROR 0x0
297 #define OHCI_CC_CRC 0x1
298 #define OHCI_CC_BITSTUFFING 0x2
299 #define OHCI_CC_DATATOGGLEMISMATCH 0x3
300 #define OHCI_CC_STALL 0x4
301 #define OHCI_CC_DEVICENOTRESPONDING 0x5
302 #define OHCI_CC_PIDCHECKFAILURE 0x6
303 #define OHCI_CC_UNDEXPETEDPID 0x7
304 #define OHCI_CC_DATAOVERRUN 0x8
305 #define OHCI_CC_DATAUNDERRUN 0x9
306 #define OHCI_CC_BUFFEROVERRUN 0xc
307 #define OHCI_CC_BUFFERUNDERRUN 0xd
308
309 #define OHCI_HRESET_FSBIR (1 << 0)
310
311 /* Update IRQ levels */
312 static inline void ohci_intr_update(OHCIState *ohci)
313 {
314 int level = 0;
315
316 if ((ohci->intr & OHCI_INTR_MIE) &&
317 (ohci->intr_status & ohci->intr))
318 level = 1;
319
320 qemu_set_irq(ohci->irq, level);
321 }
322
323 /* Set an interrupt */
324 static inline void ohci_set_interrupt(OHCIState *ohci, uint32_t intr)
325 {
326 ohci->intr_status |= intr;
327 ohci_intr_update(ohci);
328 }
329
330 /* Attach or detach a device on a root hub port. */
331 static void ohci_attach(USBPort *port1)
332 {
333 OHCIState *s = port1->opaque;
334 OHCIPort *port = &s->rhport[port1->index];
335 uint32_t old_state = port->ctrl;
336
337 /* set connect status */
338 port->ctrl |= OHCI_PORT_CCS | OHCI_PORT_CSC;
339
340 /* update speed */
341 if (port->port.dev->speed == USB_SPEED_LOW) {
342 port->ctrl |= OHCI_PORT_LSDA;
343 } else {
344 port->ctrl &= ~OHCI_PORT_LSDA;
345 }
346
347 /* notify of remote-wakeup */
348 if ((s->ctl & OHCI_CTL_HCFS) == OHCI_USB_SUSPEND) {
349 ohci_set_interrupt(s, OHCI_INTR_RD);
350 }
351
352 DPRINTF("usb-ohci: Attached port %d\n", port1->index);
353
354 if (old_state != port->ctrl) {
355 ohci_set_interrupt(s, OHCI_INTR_RHSC);
356 }
357 }
358
359 static void ohci_detach(USBPort *port1)
360 {
361 OHCIState *s = port1->opaque;
362 OHCIPort *port = &s->rhport[port1->index];
363 uint32_t old_state = port->ctrl;
364
365 ohci_async_cancel_device(s, port1->dev);
366
367 /* set connect status */
368 if (port->ctrl & OHCI_PORT_CCS) {
369 port->ctrl &= ~OHCI_PORT_CCS;
370 port->ctrl |= OHCI_PORT_CSC;
371 }
372 /* disable port */
373 if (port->ctrl & OHCI_PORT_PES) {
374 port->ctrl &= ~OHCI_PORT_PES;
375 port->ctrl |= OHCI_PORT_PESC;
376 }
377 DPRINTF("usb-ohci: Detached port %d\n", port1->index);
378
379 if (old_state != port->ctrl) {
380 ohci_set_interrupt(s, OHCI_INTR_RHSC);
381 }
382 }
383
384 static void ohci_wakeup(USBPort *port1)
385 {
386 OHCIState *s = port1->opaque;
387 OHCIPort *port = &s->rhport[port1->index];
388 uint32_t intr = 0;
389 if (port->ctrl & OHCI_PORT_PSS) {
390 DPRINTF("usb-ohci: port %d: wakeup\n", port1->index);
391 port->ctrl |= OHCI_PORT_PSSC;
392 port->ctrl &= ~OHCI_PORT_PSS;
393 intr = OHCI_INTR_RHSC;
394 }
395 /* Note that the controller can be suspended even if this port is not */
396 if ((s->ctl & OHCI_CTL_HCFS) == OHCI_USB_SUSPEND) {
397 DPRINTF("usb-ohci: remote-wakeup: SUSPEND->RESUME\n");
398 /* This is the one state transition the controller can do by itself */
399 s->ctl &= ~OHCI_CTL_HCFS;
400 s->ctl |= OHCI_USB_RESUME;
401 /* In suspend mode only ResumeDetected is possible, not RHSC:
402 * see the OHCI spec 5.1.2.3.
403 */
404 intr = OHCI_INTR_RD;
405 }
406 ohci_set_interrupt(s, intr);
407 }
408
409 static void ohci_child_detach(USBPort *port1, USBDevice *child)
410 {
411 OHCIState *s = port1->opaque;
412
413 ohci_async_cancel_device(s, child);
414 }
415
416 static USBDevice *ohci_find_device(OHCIState *ohci, uint8_t addr)
417 {
418 USBDevice *dev;
419 int i;
420
421 for (i = 0; i < ohci->num_ports; i++) {
422 if ((ohci->rhport[i].ctrl & OHCI_PORT_PES) == 0) {
423 continue;
424 }
425 dev = usb_find_device(&ohci->rhport[i].port, addr);
426 if (dev != NULL) {
427 return dev;
428 }
429 }
430 return NULL;
431 }
432
433 static void ohci_stop_endpoints(OHCIState *ohci)
434 {
435 USBDevice *dev;
436 int i, j;
437
438 for (i = 0; i < ohci->num_ports; i++) {
439 dev = ohci->rhport[i].port.dev;
440 if (dev && dev->attached) {
441 usb_device_ep_stopped(dev, &dev->ep_ctl);
442 for (j = 0; j < USB_MAX_ENDPOINTS; j++) {
443 usb_device_ep_stopped(dev, &dev->ep_in[j]);
444 usb_device_ep_stopped(dev, &dev->ep_out[j]);
445 }
446 }
447 }
448 }
449
450 /* Reset the controller */
451 static void ohci_reset(void *opaque)
452 {
453 OHCIState *ohci = opaque;
454 OHCIPort *port;
455 int i;
456
457 ohci_bus_stop(ohci);
458 ohci->ctl = 0;
459 ohci->old_ctl = 0;
460 ohci->status = 0;
461 ohci->intr_status = 0;
462 ohci->intr = OHCI_INTR_MIE;
463
464 ohci->hcca = 0;
465 ohci->ctrl_head = ohci->ctrl_cur = 0;
466 ohci->bulk_head = ohci->bulk_cur = 0;
467 ohci->per_cur = 0;
468 ohci->done = 0;
469 ohci->done_count = 7;
470
471 /* FSMPS is marked TBD in OCHI 1.0, what gives ffs?
472 * I took the value linux sets ...
473 */
474 ohci->fsmps = 0x2778;
475 ohci->fi = 0x2edf;
476 ohci->fit = 0;
477 ohci->frt = 0;
478 ohci->frame_number = 0;
479 ohci->pstart = 0;
480 ohci->lst = OHCI_LS_THRESH;
481
482 ohci->rhdesc_a = OHCI_RHA_NPS | ohci->num_ports;
483 ohci->rhdesc_b = 0x0; /* Impl. specific */
484 ohci->rhstatus = 0;
485
486 for (i = 0; i < ohci->num_ports; i++)
487 {
488 port = &ohci->rhport[i];
489 port->ctrl = 0;
490 if (port->port.dev && port->port.dev->attached) {
491 usb_port_reset(&port->port);
492 }
493 }
494 if (ohci->async_td) {
495 usb_cancel_packet(&ohci->usb_packet);
496 ohci->async_td = 0;
497 }
498 ohci_stop_endpoints(ohci);
499 DPRINTF("usb-ohci: Reset %s\n", ohci->name);
500 }
501
502 /* Get an array of dwords from main memory */
503 static inline int get_dwords(OHCIState *ohci,
504 dma_addr_t addr, uint32_t *buf, int num)
505 {
506 int i;
507
508 addr += ohci->localmem_base;
509
510 for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
511 dma_memory_read(ohci->dma, addr, buf, sizeof(*buf));
512 *buf = le32_to_cpu(*buf);
513 }
514
515 return 1;
516 }
517
518 /* Put an array of dwords in to main memory */
519 static inline int put_dwords(OHCIState *ohci,
520 dma_addr_t addr, uint32_t *buf, int num)
521 {
522 int i;
523
524 addr += ohci->localmem_base;
525
526 for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
527 uint32_t tmp = cpu_to_le32(*buf);
528 dma_memory_write(ohci->dma, addr, &tmp, sizeof(tmp));
529 }
530
531 return 1;
532 }
533
534 /* Get an array of words from main memory */
535 static inline int get_words(OHCIState *ohci,
536 dma_addr_t addr, uint16_t *buf, int num)
537 {
538 int i;
539
540 addr += ohci->localmem_base;
541
542 for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
543 dma_memory_read(ohci->dma, addr, buf, sizeof(*buf));
544 *buf = le16_to_cpu(*buf);
545 }
546
547 return 1;
548 }
549
550 /* Put an array of words in to main memory */
551 static inline int put_words(OHCIState *ohci,
552 dma_addr_t addr, uint16_t *buf, int num)
553 {
554 int i;
555
556 addr += ohci->localmem_base;
557
558 for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
559 uint16_t tmp = cpu_to_le16(*buf);
560 dma_memory_write(ohci->dma, addr, &tmp, sizeof(tmp));
561 }
562
563 return 1;
564 }
565
566 static inline int ohci_read_ed(OHCIState *ohci,
567 dma_addr_t addr, struct ohci_ed *ed)
568 {
569 return get_dwords(ohci, addr, (uint32_t *)ed, sizeof(*ed) >> 2);
570 }
571
572 static inline int ohci_read_td(OHCIState *ohci,
573 dma_addr_t addr, struct ohci_td *td)
574 {
575 return get_dwords(ohci, addr, (uint32_t *)td, sizeof(*td) >> 2);
576 }
577
578 static inline int ohci_read_iso_td(OHCIState *ohci,
579 dma_addr_t addr, struct ohci_iso_td *td)
580 {
581 return (get_dwords(ohci, addr, (uint32_t *)td, 4) &&
582 get_words(ohci, addr + 16, td->offset, 8));
583 }
584
585 static inline int ohci_read_hcca(OHCIState *ohci,
586 dma_addr_t addr, struct ohci_hcca *hcca)
587 {
588 dma_memory_read(ohci->dma, addr + ohci->localmem_base, hcca, sizeof(*hcca));
589 return 1;
590 }
591
592 static inline int ohci_put_ed(OHCIState *ohci,
593 dma_addr_t addr, struct ohci_ed *ed)
594 {
595 /* ed->tail is under control of the HCD.
596 * Since just ed->head is changed by HC, just write back this
597 */
598
599 return put_dwords(ohci, addr + ED_WBACK_OFFSET,
600 (uint32_t *)((char *)ed + ED_WBACK_OFFSET),
601 ED_WBACK_SIZE >> 2);
602 }
603
604 static inline int ohci_put_td(OHCIState *ohci,
605 dma_addr_t addr, struct ohci_td *td)
606 {
607 return put_dwords(ohci, addr, (uint32_t *)td, sizeof(*td) >> 2);
608 }
609
610 static inline int ohci_put_iso_td(OHCIState *ohci,
611 dma_addr_t addr, struct ohci_iso_td *td)
612 {
613 return (put_dwords(ohci, addr, (uint32_t *)td, 4) &&
614 put_words(ohci, addr + 16, td->offset, 8));
615 }
616
617 static inline int ohci_put_hcca(OHCIState *ohci,
618 dma_addr_t addr, struct ohci_hcca *hcca)
619 {
620 dma_memory_write(ohci->dma,
621 addr + ohci->localmem_base + HCCA_WRITEBACK_OFFSET,
622 (char *)hcca + HCCA_WRITEBACK_OFFSET,
623 HCCA_WRITEBACK_SIZE);
624 return 1;
625 }
626
627 /* Read/Write the contents of a TD from/to main memory. */
628 static void ohci_copy_td(OHCIState *ohci, struct ohci_td *td,
629 uint8_t *buf, int len, DMADirection dir)
630 {
631 dma_addr_t ptr, n;
632
633 ptr = td->cbp;
634 n = 0x1000 - (ptr & 0xfff);
635 if (n > len)
636 n = len;
637 dma_memory_rw(ohci->dma, ptr + ohci->localmem_base, buf, n, dir);
638 if (n == len)
639 return;
640 ptr = td->be & ~0xfffu;
641 buf += n;
642 dma_memory_rw(ohci->dma, ptr + ohci->localmem_base, buf, len - n, dir);
643 }
644
645 /* Read/Write the contents of an ISO TD from/to main memory. */
646 static void ohci_copy_iso_td(OHCIState *ohci,
647 uint32_t start_addr, uint32_t end_addr,
648 uint8_t *buf, int len, DMADirection dir)
649 {
650 dma_addr_t ptr, n;
651
652 ptr = start_addr;
653 n = 0x1000 - (ptr & 0xfff);
654 if (n > len)
655 n = len;
656 dma_memory_rw(ohci->dma, ptr + ohci->localmem_base, buf, n, dir);
657 if (n == len)
658 return;
659 ptr = end_addr & ~0xfffu;
660 buf += n;
661 dma_memory_rw(ohci->dma, ptr + ohci->localmem_base, buf, len - n, dir);
662 }
663
664 static void ohci_process_lists(OHCIState *ohci, int completion);
665
666 static void ohci_async_complete_packet(USBPort *port, USBPacket *packet)
667 {
668 OHCIState *ohci = container_of(packet, OHCIState, usb_packet);
669 #ifdef DEBUG_PACKET
670 DPRINTF("Async packet complete\n");
671 #endif
672 ohci->async_complete = 1;
673 ohci_process_lists(ohci, 1);
674 }
675
676 #define USUB(a, b) ((int16_t)((uint16_t)(a) - (uint16_t)(b)))
677
678 static int ohci_service_iso_td(OHCIState *ohci, struct ohci_ed *ed,
679 int completion)
680 {
681 int dir;
682 size_t len = 0;
683 #ifdef DEBUG_ISOCH
684 const char *str = NULL;
685 #endif
686 int pid;
687 int ret;
688 int i;
689 USBDevice *dev;
690 USBEndpoint *ep;
691 struct ohci_iso_td iso_td;
692 uint32_t addr;
693 uint16_t starting_frame;
694 int16_t relative_frame_number;
695 int frame_count;
696 uint32_t start_offset, next_offset, end_offset = 0;
697 uint32_t start_addr, end_addr;
698
699 addr = ed->head & OHCI_DPTR_MASK;
700
701 if (!ohci_read_iso_td(ohci, addr, &iso_td)) {
702 printf("usb-ohci: ISO_TD read error at %x\n", addr);
703 return 0;
704 }
705
706 starting_frame = OHCI_BM(iso_td.flags, TD_SF);
707 frame_count = OHCI_BM(iso_td.flags, TD_FC);
708 relative_frame_number = USUB(ohci->frame_number, starting_frame);
709
710 #ifdef DEBUG_ISOCH
711 printf("--- ISO_TD ED head 0x%.8x tailp 0x%.8x\n"
712 "0x%.8x 0x%.8x 0x%.8x 0x%.8x\n"
713 "0x%.8x 0x%.8x 0x%.8x 0x%.8x\n"
714 "0x%.8x 0x%.8x 0x%.8x 0x%.8x\n"
715 "frame_number 0x%.8x starting_frame 0x%.8x\n"
716 "frame_count 0x%.8x relative %d\n"
717 "di 0x%.8x cc 0x%.8x\n",
718 ed->head & OHCI_DPTR_MASK, ed->tail & OHCI_DPTR_MASK,
719 iso_td.flags, iso_td.bp, iso_td.next, iso_td.be,
720 iso_td.offset[0], iso_td.offset[1], iso_td.offset[2], iso_td.offset[3],
721 iso_td.offset[4], iso_td.offset[5], iso_td.offset[6], iso_td.offset[7],
722 ohci->frame_number, starting_frame,
723 frame_count, relative_frame_number,
724 OHCI_BM(iso_td.flags, TD_DI), OHCI_BM(iso_td.flags, TD_CC));
725 #endif
726
727 if (relative_frame_number < 0) {
728 DPRINTF("usb-ohci: ISO_TD R=%d < 0\n", relative_frame_number);
729 return 1;
730 } else if (relative_frame_number > frame_count) {
731 /* ISO TD expired - retire the TD to the Done Queue and continue with
732 the next ISO TD of the same ED */
733 DPRINTF("usb-ohci: ISO_TD R=%d > FC=%d\n", relative_frame_number,
734 frame_count);
735 OHCI_SET_BM(iso_td.flags, TD_CC, OHCI_CC_DATAOVERRUN);
736 ed->head &= ~OHCI_DPTR_MASK;
737 ed->head |= (iso_td.next & OHCI_DPTR_MASK);
738 iso_td.next = ohci->done;
739 ohci->done = addr;
740 i = OHCI_BM(iso_td.flags, TD_DI);
741 if (i < ohci->done_count)
742 ohci->done_count = i;
743 ohci_put_iso_td(ohci, addr, &iso_td);
744 return 0;
745 }
746
747 dir = OHCI_BM(ed->flags, ED_D);
748 switch (dir) {
749 case OHCI_TD_DIR_IN:
750 #ifdef DEBUG_ISOCH
751 str = "in";
752 #endif
753 pid = USB_TOKEN_IN;
754 break;
755 case OHCI_TD_DIR_OUT:
756 #ifdef DEBUG_ISOCH
757 str = "out";
758 #endif
759 pid = USB_TOKEN_OUT;
760 break;
761 case OHCI_TD_DIR_SETUP:
762 #ifdef DEBUG_ISOCH
763 str = "setup";
764 #endif
765 pid = USB_TOKEN_SETUP;
766 break;
767 default:
768 printf("usb-ohci: Bad direction %d\n", dir);
769 return 1;
770 }
771
772 if (!iso_td.bp || !iso_td.be) {
773 printf("usb-ohci: ISO_TD bp 0x%.8x be 0x%.8x\n", iso_td.bp, iso_td.be);
774 return 1;
775 }
776
777 start_offset = iso_td.offset[relative_frame_number];
778 next_offset = iso_td.offset[relative_frame_number + 1];
779
780 if (!(OHCI_BM(start_offset, TD_PSW_CC) & 0xe) ||
781 ((relative_frame_number < frame_count) &&
782 !(OHCI_BM(next_offset, TD_PSW_CC) & 0xe))) {
783 printf("usb-ohci: ISO_TD cc != not accessed 0x%.8x 0x%.8x\n",
784 start_offset, next_offset);
785 return 1;
786 }
787
788 if ((relative_frame_number < frame_count) && (start_offset > next_offset)) {
789 printf("usb-ohci: ISO_TD start_offset=0x%.8x > next_offset=0x%.8x\n",
790 start_offset, next_offset);
791 return 1;
792 }
793
794 if ((start_offset & 0x1000) == 0) {
795 start_addr = (iso_td.bp & OHCI_PAGE_MASK) |
796 (start_offset & OHCI_OFFSET_MASK);
797 } else {
798 start_addr = (iso_td.be & OHCI_PAGE_MASK) |
799 (start_offset & OHCI_OFFSET_MASK);
800 }
801
802 if (relative_frame_number < frame_count) {
803 end_offset = next_offset - 1;
804 if ((end_offset & 0x1000) == 0) {
805 end_addr = (iso_td.bp & OHCI_PAGE_MASK) |
806 (end_offset & OHCI_OFFSET_MASK);
807 } else {
808 end_addr = (iso_td.be & OHCI_PAGE_MASK) |
809 (end_offset & OHCI_OFFSET_MASK);
810 }
811 } else {
812 /* Last packet in the ISO TD */
813 end_addr = iso_td.be;
814 }
815
816 if ((start_addr & OHCI_PAGE_MASK) != (end_addr & OHCI_PAGE_MASK)) {
817 len = (end_addr & OHCI_OFFSET_MASK) + 0x1001
818 - (start_addr & OHCI_OFFSET_MASK);
819 } else {
820 len = end_addr - start_addr + 1;
821 }
822
823 if (len && dir != OHCI_TD_DIR_IN) {
824 ohci_copy_iso_td(ohci, start_addr, end_addr, ohci->usb_buf, len,
825 DMA_DIRECTION_TO_DEVICE);
826 }
827
828 if (!completion) {
829 bool int_req = relative_frame_number == frame_count &&
830 OHCI_BM(iso_td.flags, TD_DI) == 0;
831 dev = ohci_find_device(ohci, OHCI_BM(ed->flags, ED_FA));
832 ep = usb_ep_get(dev, pid, OHCI_BM(ed->flags, ED_EN));
833 usb_packet_setup(&ohci->usb_packet, pid, ep, 0, addr, false, int_req);
834 usb_packet_addbuf(&ohci->usb_packet, ohci->usb_buf, len);
835 usb_handle_packet(dev, &ohci->usb_packet);
836 if (ohci->usb_packet.status == USB_RET_ASYNC) {
837 usb_device_flush_ep_queue(dev, ep);
838 return 1;
839 }
840 }
841 if (ohci->usb_packet.status == USB_RET_SUCCESS) {
842 ret = ohci->usb_packet.actual_length;
843 } else {
844 ret = ohci->usb_packet.status;
845 }
846
847 #ifdef DEBUG_ISOCH
848 printf("so 0x%.8x eo 0x%.8x\nsa 0x%.8x ea 0x%.8x\ndir %s len %zu ret %d\n",
849 start_offset, end_offset, start_addr, end_addr, str, len, ret);
850 #endif
851
852 /* Writeback */
853 if (dir == OHCI_TD_DIR_IN && ret >= 0 && ret <= len) {
854 /* IN transfer succeeded */
855 ohci_copy_iso_td(ohci, start_addr, end_addr, ohci->usb_buf, ret,
856 DMA_DIRECTION_FROM_DEVICE);
857 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
858 OHCI_CC_NOERROR);
859 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE, ret);
860 } else if (dir == OHCI_TD_DIR_OUT && ret == len) {
861 /* OUT transfer succeeded */
862 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
863 OHCI_CC_NOERROR);
864 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE, 0);
865 } else {
866 if (ret > (ssize_t) len) {
867 printf("usb-ohci: DataOverrun %d > %zu\n", ret, len);
868 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
869 OHCI_CC_DATAOVERRUN);
870 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE,
871 len);
872 } else if (ret >= 0) {
873 printf("usb-ohci: DataUnderrun %d\n", ret);
874 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
875 OHCI_CC_DATAUNDERRUN);
876 } else {
877 switch (ret) {
878 case USB_RET_IOERROR:
879 case USB_RET_NODEV:
880 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
881 OHCI_CC_DEVICENOTRESPONDING);
882 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE,
883 0);
884 break;
885 case USB_RET_NAK:
886 case USB_RET_STALL:
887 printf("usb-ohci: got NAK/STALL %d\n", ret);
888 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
889 OHCI_CC_STALL);
890 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE,
891 0);
892 break;
893 default:
894 printf("usb-ohci: Bad device response %d\n", ret);
895 OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
896 OHCI_CC_UNDEXPETEDPID);
897 break;
898 }
899 }
900 }
901
902 if (relative_frame_number == frame_count) {
903 /* Last data packet of ISO TD - retire the TD to the Done Queue */
904 OHCI_SET_BM(iso_td.flags, TD_CC, OHCI_CC_NOERROR);
905 ed->head &= ~OHCI_DPTR_MASK;
906 ed->head |= (iso_td.next & OHCI_DPTR_MASK);
907 iso_td.next = ohci->done;
908 ohci->done = addr;
909 i = OHCI_BM(iso_td.flags, TD_DI);
910 if (i < ohci->done_count)
911 ohci->done_count = i;
912 }
913 ohci_put_iso_td(ohci, addr, &iso_td);
914 return 1;
915 }
916
917 /* Service a transport descriptor.
918 Returns nonzero to terminate processing of this endpoint. */
919
920 static int ohci_service_td(OHCIState *ohci, struct ohci_ed *ed)
921 {
922 int dir;
923 size_t len = 0, pktlen = 0;
924 #ifdef DEBUG_PACKET
925 const char *str = NULL;
926 #endif
927 int pid;
928 int ret;
929 int i;
930 USBDevice *dev;
931 USBEndpoint *ep;
932 struct ohci_td td;
933 uint32_t addr;
934 int flag_r;
935 int completion;
936
937 addr = ed->head & OHCI_DPTR_MASK;
938 /* See if this TD has already been submitted to the device. */
939 completion = (addr == ohci->async_td);
940 if (completion && !ohci->async_complete) {
941 #ifdef DEBUG_PACKET
942 DPRINTF("Skipping async TD\n");
943 #endif
944 return 1;
945 }
946 if (!ohci_read_td(ohci, addr, &td)) {
947 fprintf(stderr, "usb-ohci: TD read error at %x\n", addr);
948 return 0;
949 }
950
951 dir = OHCI_BM(ed->flags, ED_D);
952 switch (dir) {
953 case OHCI_TD_DIR_OUT:
954 case OHCI_TD_DIR_IN:
955 /* Same value. */
956 break;
957 default:
958 dir = OHCI_BM(td.flags, TD_DP);
959 break;
960 }
961
962 switch (dir) {
963 case OHCI_TD_DIR_IN:
964 #ifdef DEBUG_PACKET
965 str = "in";
966 #endif
967 pid = USB_TOKEN_IN;
968 break;
969 case OHCI_TD_DIR_OUT:
970 #ifdef DEBUG_PACKET
971 str = "out";
972 #endif
973 pid = USB_TOKEN_OUT;
974 break;
975 case OHCI_TD_DIR_SETUP:
976 #ifdef DEBUG_PACKET
977 str = "setup";
978 #endif
979 pid = USB_TOKEN_SETUP;
980 break;
981 default:
982 fprintf(stderr, "usb-ohci: Bad direction\n");
983 return 1;
984 }
985 if (td.cbp && td.be) {
986 if ((td.cbp & 0xfffff000) != (td.be & 0xfffff000)) {
987 len = (td.be & 0xfff) + 0x1001 - (td.cbp & 0xfff);
988 } else {
989 len = (td.be - td.cbp) + 1;
990 }
991
992 pktlen = len;
993 if (len && dir != OHCI_TD_DIR_IN) {
994 /* The endpoint may not allow us to transfer it all now */
995 pktlen = (ed->flags & OHCI_ED_MPS_MASK) >> OHCI_ED_MPS_SHIFT;
996 if (pktlen > len) {
997 pktlen = len;
998 }
999 if (!completion) {
1000 ohci_copy_td(ohci, &td, ohci->usb_buf, pktlen,
1001 DMA_DIRECTION_TO_DEVICE);
1002 }
1003 }
1004 }
1005
1006 flag_r = (td.flags & OHCI_TD_R) != 0;
1007 #ifdef DEBUG_PACKET
1008 DPRINTF(" TD @ 0x%.8x %" PRId64 " of %" PRId64
1009 " bytes %s r=%d cbp=0x%.8x be=0x%.8x\n",
1010 addr, (int64_t)pktlen, (int64_t)len, str, flag_r, td.cbp, td.be);
1011
1012 if (pktlen > 0 && dir != OHCI_TD_DIR_IN) {
1013 DPRINTF(" data:");
1014 for (i = 0; i < pktlen; i++) {
1015 printf(" %.2x", ohci->usb_buf[i]);
1016 }
1017 DPRINTF("\n");
1018 }
1019 #endif
1020 if (completion) {
1021 ohci->async_td = 0;
1022 ohci->async_complete = 0;
1023 } else {
1024 if (ohci->async_td) {
1025 /* ??? The hardware should allow one active packet per
1026 endpoint. We only allow one active packet per controller.
1027 This should be sufficient as long as devices respond in a
1028 timely manner.
1029 */
1030 #ifdef DEBUG_PACKET
1031 DPRINTF("Too many pending packets\n");
1032 #endif
1033 return 1;
1034 }
1035 dev = ohci_find_device(ohci, OHCI_BM(ed->flags, ED_FA));
1036 ep = usb_ep_get(dev, pid, OHCI_BM(ed->flags, ED_EN));
1037 usb_packet_setup(&ohci->usb_packet, pid, ep, 0, addr, !flag_r,
1038 OHCI_BM(td.flags, TD_DI) == 0);
1039 usb_packet_addbuf(&ohci->usb_packet, ohci->usb_buf, pktlen);
1040 usb_handle_packet(dev, &ohci->usb_packet);
1041 #ifdef DEBUG_PACKET
1042 DPRINTF("status=%d\n", ohci->usb_packet.status);
1043 #endif
1044 if (ohci->usb_packet.status == USB_RET_ASYNC) {
1045 usb_device_flush_ep_queue(dev, ep);
1046 ohci->async_td = addr;
1047 return 1;
1048 }
1049 }
1050 if (ohci->usb_packet.status == USB_RET_SUCCESS) {
1051 ret = ohci->usb_packet.actual_length;
1052 } else {
1053 ret = ohci->usb_packet.status;
1054 }
1055
1056 if (ret >= 0) {
1057 if (dir == OHCI_TD_DIR_IN) {
1058 ohci_copy_td(ohci, &td, ohci->usb_buf, ret,
1059 DMA_DIRECTION_FROM_DEVICE);
1060 #ifdef DEBUG_PACKET
1061 DPRINTF(" data:");
1062 for (i = 0; i < ret; i++)
1063 printf(" %.2x", ohci->usb_buf[i]);
1064 DPRINTF("\n");
1065 #endif
1066 } else {
1067 ret = pktlen;
1068 }
1069 }
1070
1071 /* Writeback */
1072 if (ret == pktlen || (dir == OHCI_TD_DIR_IN && ret >= 0 && flag_r)) {
1073 /* Transmission succeeded. */
1074 if (ret == len) {
1075 td.cbp = 0;
1076 } else {
1077 if ((td.cbp & 0xfff) + ret > 0xfff) {
1078 td.cbp = (td.be & ~0xfff) + ((td.cbp + ret) & 0xfff);
1079 } else {
1080 td.cbp += ret;
1081 }
1082 }
1083 td.flags |= OHCI_TD_T1;
1084 td.flags ^= OHCI_TD_T0;
1085 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_NOERROR);
1086 OHCI_SET_BM(td.flags, TD_EC, 0);
1087
1088 if ((dir != OHCI_TD_DIR_IN) && (ret != len)) {
1089 /* Partial packet transfer: TD not ready to retire yet */
1090 goto exit_no_retire;
1091 }
1092
1093 /* Setting ED_C is part of the TD retirement process */
1094 ed->head &= ~OHCI_ED_C;
1095 if (td.flags & OHCI_TD_T0)
1096 ed->head |= OHCI_ED_C;
1097 } else {
1098 if (ret >= 0) {
1099 DPRINTF("usb-ohci: Underrun\n");
1100 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_DATAUNDERRUN);
1101 } else {
1102 switch (ret) {
1103 case USB_RET_IOERROR:
1104 case USB_RET_NODEV:
1105 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_DEVICENOTRESPONDING);
1106 case USB_RET_NAK:
1107 DPRINTF("usb-ohci: got NAK\n");
1108 return 1;
1109 case USB_RET_STALL:
1110 DPRINTF("usb-ohci: got STALL\n");
1111 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_STALL);
1112 break;
1113 case USB_RET_BABBLE:
1114 DPRINTF("usb-ohci: got BABBLE\n");
1115 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_DATAOVERRUN);
1116 break;
1117 default:
1118 fprintf(stderr, "usb-ohci: Bad device response %d\n", ret);
1119 OHCI_SET_BM(td.flags, TD_CC, OHCI_CC_UNDEXPETEDPID);
1120 OHCI_SET_BM(td.flags, TD_EC, 3);
1121 break;
1122 }
1123 }
1124 ed->head |= OHCI_ED_H;
1125 }
1126
1127 /* Retire this TD */
1128 ed->head &= ~OHCI_DPTR_MASK;
1129 ed->head |= td.next & OHCI_DPTR_MASK;
1130 td.next = ohci->done;
1131 ohci->done = addr;
1132 i = OHCI_BM(td.flags, TD_DI);
1133 if (i < ohci->done_count)
1134 ohci->done_count = i;
1135 exit_no_retire:
1136 ohci_put_td(ohci, addr, &td);
1137 return OHCI_BM(td.flags, TD_CC) != OHCI_CC_NOERROR;
1138 }
1139
1140 /* Service an endpoint list. Returns nonzero if active TD were found. */
1141 static int ohci_service_ed_list(OHCIState *ohci, uint32_t head, int completion)
1142 {
1143 struct ohci_ed ed;
1144 uint32_t next_ed;
1145 uint32_t cur;
1146 int active;
1147
1148 active = 0;
1149
1150 if (head == 0)
1151 return 0;
1152
1153 for (cur = head; cur; cur = next_ed) {
1154 if (!ohci_read_ed(ohci, cur, &ed)) {
1155 fprintf(stderr, "usb-ohci: ED read error at %x\n", cur);
1156 return 0;
1157 }
1158
1159 next_ed = ed.next & OHCI_DPTR_MASK;
1160
1161 if ((ed.head & OHCI_ED_H) || (ed.flags & OHCI_ED_K)) {
1162 uint32_t addr;
1163 /* Cancel pending packets for ED that have been paused. */
1164 addr = ed.head & OHCI_DPTR_MASK;
1165 if (ohci->async_td && addr == ohci->async_td) {
1166 usb_cancel_packet(&ohci->usb_packet);
1167 ohci->async_td = 0;
1168 usb_device_ep_stopped(ohci->usb_packet.ep->dev,
1169 ohci->usb_packet.ep);
1170 }
1171 continue;
1172 }
1173
1174 while ((ed.head & OHCI_DPTR_MASK) != ed.tail) {
1175 #ifdef DEBUG_PACKET
1176 DPRINTF("ED @ 0x%.8x fa=%u en=%u d=%u s=%u k=%u f=%u mps=%u "
1177 "h=%u c=%u\n head=0x%.8x tailp=0x%.8x next=0x%.8x\n", cur,
1178 OHCI_BM(ed.flags, ED_FA), OHCI_BM(ed.flags, ED_EN),
1179 OHCI_BM(ed.flags, ED_D), (ed.flags & OHCI_ED_S)!= 0,
1180 (ed.flags & OHCI_ED_K) != 0, (ed.flags & OHCI_ED_F) != 0,
1181 OHCI_BM(ed.flags, ED_MPS), (ed.head & OHCI_ED_H) != 0,
1182 (ed.head & OHCI_ED_C) != 0, ed.head & OHCI_DPTR_MASK,
1183 ed.tail & OHCI_DPTR_MASK, ed.next & OHCI_DPTR_MASK);
1184 #endif
1185 active = 1;
1186
1187 if ((ed.flags & OHCI_ED_F) == 0) {
1188 if (ohci_service_td(ohci, &ed))
1189 break;
1190 } else {
1191 /* Handle isochronous endpoints */
1192 if (ohci_service_iso_td(ohci, &ed, completion))
1193 break;
1194 }
1195 }
1196
1197 ohci_put_ed(ohci, cur, &ed);
1198 }
1199
1200 return active;
1201 }
1202
1203 /* Generate a SOF event, and set a timer for EOF */
1204 static void ohci_sof(OHCIState *ohci)
1205 {
1206 ohci->sof_time = qemu_get_clock_ns(vm_clock);
1207 qemu_mod_timer(ohci->eof_timer, ohci->sof_time + usb_frame_time);
1208 ohci_set_interrupt(ohci, OHCI_INTR_SF);
1209 }
1210
1211 /* Process Control and Bulk lists. */
1212 static void ohci_process_lists(OHCIState *ohci, int completion)
1213 {
1214 if ((ohci->ctl & OHCI_CTL_CLE) && (ohci->status & OHCI_STATUS_CLF)) {
1215 if (ohci->ctrl_cur && ohci->ctrl_cur != ohci->ctrl_head) {
1216 DPRINTF("usb-ohci: head %x, cur %x\n",
1217 ohci->ctrl_head, ohci->ctrl_cur);
1218 }
1219 if (!ohci_service_ed_list(ohci, ohci->ctrl_head, completion)) {
1220 ohci->ctrl_cur = 0;
1221 ohci->status &= ~OHCI_STATUS_CLF;
1222 }
1223 }
1224
1225 if ((ohci->ctl & OHCI_CTL_BLE) && (ohci->status & OHCI_STATUS_BLF)) {
1226 if (!ohci_service_ed_list(ohci, ohci->bulk_head, completion)) {
1227 ohci->bulk_cur = 0;
1228 ohci->status &= ~OHCI_STATUS_BLF;
1229 }
1230 }
1231 }
1232
1233 /* Do frame processing on frame boundary */
1234 static void ohci_frame_boundary(void *opaque)
1235 {
1236 OHCIState *ohci = opaque;
1237 struct ohci_hcca hcca;
1238
1239 ohci_read_hcca(ohci, ohci->hcca, &hcca);
1240
1241 /* Process all the lists at the end of the frame */
1242 if (ohci->ctl & OHCI_CTL_PLE) {
1243 int n;
1244
1245 n = ohci->frame_number & 0x1f;
1246 ohci_service_ed_list(ohci, le32_to_cpu(hcca.intr[n]), 0);
1247 }
1248
1249 /* Cancel all pending packets if either of the lists has been disabled. */
1250 if (ohci->old_ctl & (~ohci->ctl) & (OHCI_CTL_BLE | OHCI_CTL_CLE)) {
1251 if (ohci->async_td) {
1252 usb_cancel_packet(&ohci->usb_packet);
1253 ohci->async_td = 0;
1254 }
1255 ohci_stop_endpoints(ohci);
1256 }
1257 ohci->old_ctl = ohci->ctl;
1258 ohci_process_lists(ohci, 0);
1259
1260 /* Frame boundary, so do EOF stuf here */
1261 ohci->frt = ohci->fit;
1262
1263 /* Increment frame number and take care of endianness. */
1264 ohci->frame_number = (ohci->frame_number + 1) & 0xffff;
1265 hcca.frame = cpu_to_le16(ohci->frame_number);
1266
1267 if (ohci->done_count == 0 && !(ohci->intr_status & OHCI_INTR_WD)) {
1268 if (!ohci->done)
1269 abort();
1270 if (ohci->intr & ohci->intr_status)
1271 ohci->done |= 1;
1272 hcca.done = cpu_to_le32(ohci->done);
1273 ohci->done = 0;
1274 ohci->done_count = 7;
1275 ohci_set_interrupt(ohci, OHCI_INTR_WD);
1276 }
1277
1278 if (ohci->done_count != 7 && ohci->done_count != 0)
1279 ohci->done_count--;
1280
1281 /* Do SOF stuff here */
1282 ohci_sof(ohci);
1283
1284 /* Writeback HCCA */
1285 ohci_put_hcca(ohci, ohci->hcca, &hcca);
1286 }
1287
1288 /* Start sending SOF tokens across the USB bus, lists are processed in
1289 * next frame
1290 */
1291 static int ohci_bus_start(OHCIState *ohci)
1292 {
1293 ohci->eof_timer = qemu_new_timer_ns(vm_clock,
1294 ohci_frame_boundary,
1295 ohci);
1296
1297 if (ohci->eof_timer == NULL) {
1298 fprintf(stderr, "usb-ohci: %s: qemu_new_timer_ns failed\n", ohci->name);
1299 /* TODO: Signal unrecoverable error */
1300 return 0;
1301 }
1302
1303 DPRINTF("usb-ohci: %s: USB Operational\n", ohci->name);
1304
1305 ohci_sof(ohci);
1306
1307 return 1;
1308 }
1309
1310 /* Stop sending SOF tokens on the bus */
1311 static void ohci_bus_stop(OHCIState *ohci)
1312 {
1313 if (ohci->eof_timer)
1314 qemu_del_timer(ohci->eof_timer);
1315 ohci->eof_timer = NULL;
1316 }
1317
1318 /* Sets a flag in a port status register but only set it if the port is
1319 * connected, if not set ConnectStatusChange flag. If flag is enabled
1320 * return 1.
1321 */
1322 static int ohci_port_set_if_connected(OHCIState *ohci, int i, uint32_t val)
1323 {
1324 int ret = 1;
1325
1326 /* writing a 0 has no effect */
1327 if (val == 0)
1328 return 0;
1329
1330 /* If CurrentConnectStatus is cleared we set
1331 * ConnectStatusChange
1332 */
1333 if (!(ohci->rhport[i].ctrl & OHCI_PORT_CCS)) {
1334 ohci->rhport[i].ctrl |= OHCI_PORT_CSC;
1335 if (ohci->rhstatus & OHCI_RHS_DRWE) {
1336 /* TODO: CSC is a wakeup event */
1337 }
1338 return 0;
1339 }
1340
1341 if (ohci->rhport[i].ctrl & val)
1342 ret = 0;
1343
1344 /* set the bit */
1345 ohci->rhport[i].ctrl |= val;
1346
1347 return ret;
1348 }
1349
1350 /* Set the frame interval - frame interval toggle is manipulated by the hcd only */
1351 static void ohci_set_frame_interval(OHCIState *ohci, uint16_t val)
1352 {
1353 val &= OHCI_FMI_FI;
1354
1355 if (val != ohci->fi) {
1356 DPRINTF("usb-ohci: %s: FrameInterval = 0x%x (%u)\n",
1357 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 switch (new_state) {
1390 case OHCI_USB_OPERATIONAL:
1391 ohci_bus_start(ohci);
1392 break;
1393 case OHCI_USB_SUSPEND:
1394 ohci_bus_stop(ohci);
1395 DPRINTF("usb-ohci: %s: USB Suspended\n", ohci->name);
1396 break;
1397 case OHCI_USB_RESUME:
1398 DPRINTF("usb-ohci: %s: USB Resume\n", ohci->name);
1399 break;
1400 case OHCI_USB_RESET:
1401 ohci_reset(ohci);
1402 DPRINTF("usb-ohci: %s: USB Reset\n", ohci->name);
1403 break;
1404 }
1405 }
1406
1407 static uint32_t ohci_get_frame_remaining(OHCIState *ohci)
1408 {
1409 uint16_t fr;
1410 int64_t tks;
1411
1412 if ((ohci->ctl & OHCI_CTL_HCFS) != OHCI_USB_OPERATIONAL)
1413 return (ohci->frt << 31);
1414
1415 /* Being in USB operational state guarnatees sof_time was
1416 * set already.
1417 */
1418 tks = qemu_get_clock_ns(vm_clock) - ohci->sof_time;
1419
1420 /* avoid muldiv if possible */
1421 if (tks >= usb_frame_time)
1422 return (ohci->frt << 31);
1423
1424 tks = muldiv64(1, tks, usb_bit_time);
1425 fr = (uint16_t)(ohci->fi - tks);
1426
1427 return (ohci->frt << 31) | fr;
1428 }
1429
1430
1431 /* Set root hub status */
1432 static void ohci_set_hub_status(OHCIState *ohci, uint32_t val)
1433 {
1434 uint32_t old_state;
1435
1436 old_state = ohci->rhstatus;
1437
1438 /* write 1 to clear OCIC */
1439 if (val & OHCI_RHS_OCIC)
1440 ohci->rhstatus &= ~OHCI_RHS_OCIC;
1441
1442 if (val & OHCI_RHS_LPS) {
1443 int i;
1444
1445 for (i = 0; i < ohci->num_ports; i++)
1446 ohci_port_power(ohci, i, 0);
1447 DPRINTF("usb-ohci: powered down all ports\n");
1448 }
1449
1450 if (val & OHCI_RHS_LPSC) {
1451 int i;
1452
1453 for (i = 0; i < ohci->num_ports; i++)
1454 ohci_port_power(ohci, i, 1);
1455 DPRINTF("usb-ohci: powered up all ports\n");
1456 }
1457
1458 if (val & OHCI_RHS_DRWE)
1459 ohci->rhstatus |= OHCI_RHS_DRWE;
1460
1461 if (val & OHCI_RHS_CRWE)
1462 ohci->rhstatus &= ~OHCI_RHS_DRWE;
1463
1464 if (old_state != ohci->rhstatus)
1465 ohci_set_interrupt(ohci, OHCI_INTR_RHSC);
1466 }
1467
1468 /* Set root hub port status */
1469 static void ohci_port_set_status(OHCIState *ohci, int portnum, uint32_t val)
1470 {
1471 uint32_t old_state;
1472 OHCIPort *port;
1473
1474 port = &ohci->rhport[portnum];
1475 old_state = port->ctrl;
1476
1477 /* Write to clear CSC, PESC, PSSC, OCIC, PRSC */
1478 if (val & OHCI_PORT_WTC)
1479 port->ctrl &= ~(val & OHCI_PORT_WTC);
1480
1481 if (val & OHCI_PORT_CCS)
1482 port->ctrl &= ~OHCI_PORT_PES;
1483
1484 ohci_port_set_if_connected(ohci, portnum, val & OHCI_PORT_PES);
1485
1486 if (ohci_port_set_if_connected(ohci, portnum, val & OHCI_PORT_PSS)) {
1487 DPRINTF("usb-ohci: port %d: SUSPEND\n", portnum);
1488 }
1489
1490 if (ohci_port_set_if_connected(ohci, portnum, val & OHCI_PORT_PRS)) {
1491 DPRINTF("usb-ohci: port %d: RESET\n", portnum);
1492 usb_device_reset(port->port.dev);
1493 port->ctrl &= ~OHCI_PORT_PRS;
1494 /* ??? Should this also set OHCI_PORT_PESC. */
1495 port->ctrl |= OHCI_PORT_PES | OHCI_PORT_PRSC;
1496 }
1497
1498 /* Invert order here to ensure in ambiguous case, device is
1499 * powered up...
1500 */
1501 if (val & OHCI_PORT_LSDA)
1502 ohci_port_power(ohci, portnum, 0);
1503 if (val & OHCI_PORT_PPS)
1504 ohci_port_power(ohci, portnum, 1);
1505
1506 if (old_state != port->ctrl)
1507 ohci_set_interrupt(ohci, OHCI_INTR_RHSC);
1508 }
1509
1510 static uint64_t ohci_mem_read(void *opaque,
1511 hwaddr addr,
1512 unsigned size)
1513 {
1514 OHCIState *ohci = opaque;
1515 uint32_t retval;
1516
1517 /* Only aligned reads are allowed on OHCI */
1518 if (addr & 3) {
1519 fprintf(stderr, "usb-ohci: Mis-aligned read\n");
1520 return 0xffffffff;
1521 } else if (addr >= 0x54 && addr < 0x54 + ohci->num_ports * 4) {
1522 /* HcRhPortStatus */
1523 retval = ohci->rhport[(addr - 0x54) >> 2].ctrl | OHCI_PORT_PPS;
1524 } else {
1525 switch (addr >> 2) {
1526 case 0: /* HcRevision */
1527 retval = 0x10;
1528 break;
1529
1530 case 1: /* HcControl */
1531 retval = ohci->ctl;
1532 break;
1533
1534 case 2: /* HcCommandStatus */
1535 retval = ohci->status;
1536 break;
1537
1538 case 3: /* HcInterruptStatus */
1539 retval = ohci->intr_status;
1540 break;
1541
1542 case 4: /* HcInterruptEnable */
1543 case 5: /* HcInterruptDisable */
1544 retval = ohci->intr;
1545 break;
1546
1547 case 6: /* HcHCCA */
1548 retval = ohci->hcca;
1549 break;
1550
1551 case 7: /* HcPeriodCurrentED */
1552 retval = ohci->per_cur;
1553 break;
1554
1555 case 8: /* HcControlHeadED */
1556 retval = ohci->ctrl_head;
1557 break;
1558
1559 case 9: /* HcControlCurrentED */
1560 retval = ohci->ctrl_cur;
1561 break;
1562
1563 case 10: /* HcBulkHeadED */
1564 retval = ohci->bulk_head;
1565 break;
1566
1567 case 11: /* HcBulkCurrentED */
1568 retval = ohci->bulk_cur;
1569 break;
1570
1571 case 12: /* HcDoneHead */
1572 retval = ohci->done;
1573 break;
1574
1575 case 13: /* HcFmInterretval */
1576 retval = (ohci->fit << 31) | (ohci->fsmps << 16) | (ohci->fi);
1577 break;
1578
1579 case 14: /* HcFmRemaining */
1580 retval = ohci_get_frame_remaining(ohci);
1581 break;
1582
1583 case 15: /* HcFmNumber */
1584 retval = ohci->frame_number;
1585 break;
1586
1587 case 16: /* HcPeriodicStart */
1588 retval = ohci->pstart;
1589 break;
1590
1591 case 17: /* HcLSThreshold */
1592 retval = ohci->lst;
1593 break;
1594
1595 case 18: /* HcRhDescriptorA */
1596 retval = ohci->rhdesc_a;
1597 break;
1598
1599 case 19: /* HcRhDescriptorB */
1600 retval = ohci->rhdesc_b;
1601 break;
1602
1603 case 20: /* HcRhStatus */
1604 retval = ohci->rhstatus;
1605 break;
1606
1607 /* PXA27x specific registers */
1608 case 24: /* HcStatus */
1609 retval = ohci->hstatus & ohci->hmask;
1610 break;
1611
1612 case 25: /* HcHReset */
1613 retval = ohci->hreset;
1614 break;
1615
1616 case 26: /* HcHInterruptEnable */
1617 retval = ohci->hmask;
1618 break;
1619
1620 case 27: /* HcHInterruptTest */
1621 retval = ohci->htest;
1622 break;
1623
1624 default:
1625 fprintf(stderr, "ohci_read: Bad offset %x\n", (int)addr);
1626 retval = 0xffffffff;
1627 }
1628 }
1629
1630 return retval;
1631 }
1632
1633 static void ohci_mem_write(void *opaque,
1634 hwaddr addr,
1635 uint64_t val,
1636 unsigned size)
1637 {
1638 OHCIState *ohci = opaque;
1639
1640 /* Only aligned reads are allowed on OHCI */
1641 if (addr & 3) {
1642 fprintf(stderr, "usb-ohci: Mis-aligned write\n");
1643 return;
1644 }
1645
1646 if (addr >= 0x54 && addr < 0x54 + ohci->num_ports * 4) {
1647 /* HcRhPortStatus */
1648 ohci_port_set_status(ohci, (addr - 0x54) >> 2, val);
1649 return;
1650 }
1651
1652 switch (addr >> 2) {
1653 case 1: /* HcControl */
1654 ohci_set_ctl(ohci, val);
1655 break;
1656
1657 case 2: /* HcCommandStatus */
1658 /* SOC is read-only */
1659 val = (val & ~OHCI_STATUS_SOC);
1660
1661 /* Bits written as '0' remain unchanged in the register */
1662 ohci->status |= val;
1663
1664 if (ohci->status & OHCI_STATUS_HCR)
1665 ohci_reset(ohci);
1666 break;
1667
1668 case 3: /* HcInterruptStatus */
1669 ohci->intr_status &= ~val;
1670 ohci_intr_update(ohci);
1671 break;
1672
1673 case 4: /* HcInterruptEnable */
1674 ohci->intr |= val;
1675 ohci_intr_update(ohci);
1676 break;
1677
1678 case 5: /* HcInterruptDisable */
1679 ohci->intr &= ~val;
1680 ohci_intr_update(ohci);
1681 break;
1682
1683 case 6: /* HcHCCA */
1684 ohci->hcca = val & OHCI_HCCA_MASK;
1685 break;
1686
1687 case 7: /* HcPeriodCurrentED */
1688 /* Ignore writes to this read-only register, Linux does them */
1689 break;
1690
1691 case 8: /* HcControlHeadED */
1692 ohci->ctrl_head = val & OHCI_EDPTR_MASK;
1693 break;
1694
1695 case 9: /* HcControlCurrentED */
1696 ohci->ctrl_cur = val & OHCI_EDPTR_MASK;
1697 break;
1698
1699 case 10: /* HcBulkHeadED */
1700 ohci->bulk_head = val & OHCI_EDPTR_MASK;
1701 break;
1702
1703 case 11: /* HcBulkCurrentED */
1704 ohci->bulk_cur = val & OHCI_EDPTR_MASK;
1705 break;
1706
1707 case 13: /* HcFmInterval */
1708 ohci->fsmps = (val & OHCI_FMI_FSMPS) >> 16;
1709 ohci->fit = (val & OHCI_FMI_FIT) >> 31;
1710 ohci_set_frame_interval(ohci, val);
1711 break;
1712
1713 case 15: /* HcFmNumber */
1714 break;
1715
1716 case 16: /* HcPeriodicStart */
1717 ohci->pstart = val & 0xffff;
1718 break;
1719
1720 case 17: /* HcLSThreshold */
1721 ohci->lst = val & 0xffff;
1722 break;
1723
1724 case 18: /* HcRhDescriptorA */
1725 ohci->rhdesc_a &= ~OHCI_RHA_RW_MASK;
1726 ohci->rhdesc_a |= val & OHCI_RHA_RW_MASK;
1727 break;
1728
1729 case 19: /* HcRhDescriptorB */
1730 break;
1731
1732 case 20: /* HcRhStatus */
1733 ohci_set_hub_status(ohci, val);
1734 break;
1735
1736 /* PXA27x specific registers */
1737 case 24: /* HcStatus */
1738 ohci->hstatus &= ~(val & ohci->hmask);
1739 break;
1740
1741 case 25: /* HcHReset */
1742 ohci->hreset = val & ~OHCI_HRESET_FSBIR;
1743 if (val & OHCI_HRESET_FSBIR)
1744 ohci_reset(ohci);
1745 break;
1746
1747 case 26: /* HcHInterruptEnable */
1748 ohci->hmask = val;
1749 break;
1750
1751 case 27: /* HcHInterruptTest */
1752 ohci->htest = val;
1753 break;
1754
1755 default:
1756 fprintf(stderr, "ohci_write: Bad offset %x\n", (int)addr);
1757 break;
1758 }
1759 }
1760
1761 static void ohci_async_cancel_device(OHCIState *ohci, USBDevice *dev)
1762 {
1763 if (ohci->async_td &&
1764 usb_packet_is_inflight(&ohci->usb_packet) &&
1765 ohci->usb_packet.ep->dev == dev) {
1766 usb_cancel_packet(&ohci->usb_packet);
1767 ohci->async_td = 0;
1768 }
1769 }
1770
1771 static const MemoryRegionOps ohci_mem_ops = {
1772 .read = ohci_mem_read,
1773 .write = ohci_mem_write,
1774 .endianness = DEVICE_LITTLE_ENDIAN,
1775 };
1776
1777 static USBPortOps ohci_port_ops = {
1778 .attach = ohci_attach,
1779 .detach = ohci_detach,
1780 .child_detach = ohci_child_detach,
1781 .wakeup = ohci_wakeup,
1782 .complete = ohci_async_complete_packet,
1783 };
1784
1785 static USBBusOps ohci_bus_ops = {
1786 };
1787
1788 static int usb_ohci_init(OHCIState *ohci, DeviceState *dev,
1789 int num_ports, dma_addr_t localmem_base,
1790 char *masterbus, uint32_t firstport,
1791 DMAContext *dma)
1792 {
1793 int i;
1794
1795 ohci->dma = dma;
1796
1797 if (usb_frame_time == 0) {
1798 #ifdef OHCI_TIME_WARP
1799 usb_frame_time = get_ticks_per_sec();
1800 usb_bit_time = muldiv64(1, get_ticks_per_sec(), USB_HZ/1000);
1801 #else
1802 usb_frame_time = muldiv64(1, get_ticks_per_sec(), 1000);
1803 if (get_ticks_per_sec() >= USB_HZ) {
1804 usb_bit_time = muldiv64(1, get_ticks_per_sec(), USB_HZ);
1805 } else {
1806 usb_bit_time = 1;
1807 }
1808 #endif
1809 DPRINTF("usb-ohci: usb_bit_time=%" PRId64 " usb_frame_time=%" PRId64 "\n",
1810 usb_frame_time, usb_bit_time);
1811 }
1812
1813 ohci->num_ports = num_ports;
1814 if (masterbus) {
1815 USBPort *ports[OHCI_MAX_PORTS];
1816 for(i = 0; i < num_ports; i++) {
1817 ports[i] = &ohci->rhport[i].port;
1818 }
1819 if (usb_register_companion(masterbus, ports, num_ports,
1820 firstport, ohci, &ohci_port_ops,
1821 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL) != 0) {
1822 return -1;
1823 }
1824 } else {
1825 usb_bus_new(&ohci->bus, &ohci_bus_ops, dev);
1826 for (i = 0; i < num_ports; i++) {
1827 usb_register_port(&ohci->bus, &ohci->rhport[i].port,
1828 ohci, i, &ohci_port_ops,
1829 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL);
1830 }
1831 }
1832
1833 memory_region_init_io(&ohci->mem, &ohci_mem_ops, ohci, "ohci", 256);
1834 ohci->localmem_base = localmem_base;
1835
1836 ohci->name = object_get_typename(OBJECT(dev));
1837 usb_packet_init(&ohci->usb_packet);
1838
1839 ohci->async_td = 0;
1840 qemu_register_reset(ohci_reset, ohci);
1841
1842 return 0;
1843 }
1844
1845 typedef struct {
1846 PCIDevice pci_dev;
1847 OHCIState state;
1848 char *masterbus;
1849 uint32_t num_ports;
1850 uint32_t firstport;
1851 } OHCIPCIState;
1852
1853 static int usb_ohci_initfn_pci(struct PCIDevice *dev)
1854 {
1855 OHCIPCIState *ohci = DO_UPCAST(OHCIPCIState, pci_dev, dev);
1856
1857 ohci->pci_dev.config[PCI_CLASS_PROG] = 0x10; /* OHCI */
1858 ohci->pci_dev.config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin A */
1859
1860 if (usb_ohci_init(&ohci->state, &dev->qdev, ohci->num_ports, 0,
1861 ohci->masterbus, ohci->firstport,
1862 pci_dma_context(dev)) != 0) {
1863 return -1;
1864 }
1865 ohci->state.irq = ohci->pci_dev.irq[0];
1866
1867 /* TODO: avoid cast below by using dev */
1868 pci_register_bar(&ohci->pci_dev, 0, 0, &ohci->state.mem);
1869 return 0;
1870 }
1871
1872 typedef struct {
1873 SysBusDevice busdev;
1874 OHCIState ohci;
1875 uint32_t num_ports;
1876 dma_addr_t dma_offset;
1877 } OHCISysBusState;
1878
1879 static int ohci_init_pxa(SysBusDevice *dev)
1880 {
1881 OHCISysBusState *s = FROM_SYSBUS(OHCISysBusState, dev);
1882
1883 /* Cannot fail as we pass NULL for masterbus */
1884 usb_ohci_init(&s->ohci, &dev->qdev, s->num_ports, s->dma_offset, NULL, 0,
1885 &dma_context_memory);
1886 sysbus_init_irq(dev, &s->ohci.irq);
1887 sysbus_init_mmio(dev, &s->ohci.mem);
1888
1889 return 0;
1890 }
1891
1892 static Property ohci_pci_properties[] = {
1893 DEFINE_PROP_STRING("masterbus", OHCIPCIState, masterbus),
1894 DEFINE_PROP_UINT32("num-ports", OHCIPCIState, num_ports, 3),
1895 DEFINE_PROP_UINT32("firstport", OHCIPCIState, firstport, 0),
1896 DEFINE_PROP_END_OF_LIST(),
1897 };
1898
1899 static void ohci_pci_class_init(ObjectClass *klass, void *data)
1900 {
1901 DeviceClass *dc = DEVICE_CLASS(klass);
1902 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1903
1904 k->init = usb_ohci_initfn_pci;
1905 k->vendor_id = PCI_VENDOR_ID_APPLE;
1906 k->device_id = PCI_DEVICE_ID_APPLE_IPID_USB;
1907 k->class_id = PCI_CLASS_SERIAL_USB;
1908 k->no_hotplug = 1;
1909 dc->desc = "Apple USB Controller";
1910 dc->props = ohci_pci_properties;
1911 }
1912
1913 static const TypeInfo ohci_pci_info = {
1914 .name = "pci-ohci",
1915 .parent = TYPE_PCI_DEVICE,
1916 .instance_size = sizeof(OHCIPCIState),
1917 .class_init = ohci_pci_class_init,
1918 };
1919
1920 static Property ohci_sysbus_properties[] = {
1921 DEFINE_PROP_UINT32("num-ports", OHCISysBusState, num_ports, 3),
1922 DEFINE_PROP_DMAADDR("dma-offset", OHCISysBusState, dma_offset, 3),
1923 DEFINE_PROP_END_OF_LIST(),
1924 };
1925
1926 static void ohci_sysbus_class_init(ObjectClass *klass, void *data)
1927 {
1928 DeviceClass *dc = DEVICE_CLASS(klass);
1929 SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
1930
1931 sbc->init = ohci_init_pxa;
1932 dc->desc = "OHCI USB Controller";
1933 dc->props = ohci_sysbus_properties;
1934 }
1935
1936 static const TypeInfo ohci_sysbus_info = {
1937 .name = "sysbus-ohci",
1938 .parent = TYPE_SYS_BUS_DEVICE,
1939 .instance_size = sizeof(OHCISysBusState),
1940 .class_init = ohci_sysbus_class_init,
1941 };
1942
1943 static void ohci_register_types(void)
1944 {
1945 type_register_static(&ohci_pci_info);
1946 type_register_static(&ohci_sysbus_info);
1947 }
1948
1949 type_init(ohci_register_types)
AR7 emulation for QEMU