sl811hs.c revision 1.35
1 /* $NetBSD: sl811hs.c,v 1.35 2013/09/02 12:27:18 skrll Exp $ */ 2 3 /* 4 * Not (c) 2007 Matthew Orgass 5 * This file is public domain, meaning anyone can make any use of part or all 6 * of this file including copying into other works without credit. Any use, 7 * modified or not, is solely the responsibility of the user. If this file is 8 * part of a collection then use in the collection is governed by the terms of 9 * the collection. 10 */ 11 12 /* 13 * Cypress/ScanLogic SL811HS/T USB Host Controller 14 * Datasheet, Errata, and App Note available at www.cypress.com 15 * 16 * Uses: Ratoc CFU1U PCMCIA USB Host Controller, Nereid X68k USB HC, ISA 17 * HCs. The Ratoc CFU2 uses a different chip. 18 * 19 * This chip puts the serial in USB. It implements USB by means of an eight 20 * bit I/O interface. It can be used for ISA, PCMCIA/CF, parallel port, 21 * serial port, or any eight bit interface. It has 256 bytes of memory, the 22 * first 16 of which are used for register access. There are two sets of 23 * registers for sending individual bus transactions. Because USB is polled, 24 * this organization means that some amount of card access must often be made 25 * when devices are attached, even if when they are not directly being used. 26 * A per-ms frame interrupt is necessary and many devices will poll with a 27 * per-frame bulk transfer. 28 * 29 * It is possible to write a little over two bytes to the chip (auto 30 * incremented) per full speed byte time on the USB. Unfortunately, 31 * auto-increment does not work reliably so write and bus speed is 32 * approximately the same for full speed devices. 33 * 34 * In addition to the 240 byte packet size limit for isochronous transfers, 35 * this chip has no means of determining the current frame number other than 36 * getting all 1ms SOF interrupts, which is not always possible even on a fast 37 * system. Isochronous transfers guarantee that transfers will never be 38 * retried in a later frame, so this can cause problems with devices beyond 39 * the difficulty in actually performing the transfer most frames. I tried 40 * implementing isoc transfers and was able to play CD-derrived audio via an 41 * iMic on a 2GHz PC, however it would still be interrupted at times and 42 * once interrupted, would stay out of sync. All isoc support has been 43 * removed. 44 * 45 * BUGS: all chip revisions have problems with low speed devices through hubs. 46 * The chip stops generating SOF with hubs that send SE0 during SOF. See 47 * comment in dointr(). All performance enhancing features of this chip seem 48 * not to work properly, most confirmed buggy in errata doc. 49 * 50 */ 51 52 /* 53 * The hard interrupt is the main entry point. Start, callbacks, and repeat 54 * are the only others called frequently. 55 * 56 * Since this driver attaches to pcmcia, card removal at any point should be 57 * expected and not cause panics or infinite loops. 58 * 59 * This driver does fine grained locking for its own data structures, however 60 * the general USB code does not yet have locks, some of which would need to 61 * be used in this driver. This is mostly for debug use on single processor 62 * systems. 63 * 64 * The theory of the wait lock is that start is the only function that would 65 * be frequently called from arbitrary processors, so it should not need to 66 * wait for the rest to be completed. However, once entering the lock as much 67 * device access as possible is done, so any other CPU that tries to service 68 * an interrupt would be blocked. Ideally, the hard and soft interrupt could 69 * be assigned to the same CPU and start would normally just put work on the 70 * wait queue and generate a soft interrupt. 71 * 72 * Any use of the main lock must check the wait lock before returning. The 73 * aquisition order is main lock then wait lock, but the wait lock must be 74 * released last when clearing the wait queue. 75 */ 76 77 /* 78 * XXX TODO: 79 * copy next output packet while transfering 80 * usb suspend 81 * could keep track of known values of all buffer space? 82 * combined print/log function for errors 83 * 84 * use_polling support is untested and may not work 85 */ 86 87 #include <sys/cdefs.h> 88 __KERNEL_RCSID(0, "$NetBSD: sl811hs.c,v 1.35 2013/09/02 12:27:18 skrll Exp $"); 89 90 #include "opt_slhci.h" 91 92 #include <sys/cdefs.h> 93 #include <sys/param.h> 94 #include <sys/systm.h> 95 #include <sys/kernel.h> 96 #include <sys/proc.h> 97 #include <sys/device.h> 98 #include <sys/malloc.h> 99 #include <sys/queue.h> 100 #include <sys/gcq.h> 101 #include <sys/simplelock.h> 102 #include <sys/intr.h> 103 #include <sys/cpu.h> 104 #include <sys/bus.h> 105 106 #include <dev/usb/usb.h> 107 #include <dev/usb/usbdi.h> 108 #include <dev/usb/usbdivar.h> 109 #include <dev/usb/usb_mem.h> 110 #include <dev/usb/usbdevs.h> 111 #include <dev/usb/usbroothub_subr.h> 112 113 #include <dev/ic/sl811hsreg.h> 114 #include <dev/ic/sl811hsvar.h> 115 116 #define Q_CB 0 /* Control/Bulk */ 117 #define Q_NEXT_CB 1 118 #define Q_MAX_XFER Q_CB 119 #define Q_CALLBACKS 2 120 #define Q_MAX Q_CALLBACKS 121 122 #define F_AREADY (0x00000001) 123 #define F_BREADY (0x00000002) 124 #define F_AINPROG (0x00000004) 125 #define F_BINPROG (0x00000008) 126 #define F_LOWSPEED (0x00000010) 127 #define F_UDISABLED (0x00000020) /* Consider disabled for USB */ 128 #define F_NODEV (0x00000040) 129 #define F_ROOTINTR (0x00000080) 130 #define F_REALPOWER (0x00000100) /* Actual power state */ 131 #define F_POWER (0x00000200) /* USB reported power state */ 132 #define F_ACTIVE (0x00000400) 133 #define F_CALLBACK (0x00000800) /* Callback scheduled */ 134 #define F_SOFCHECK1 (0x00001000) 135 #define F_SOFCHECK2 (0x00002000) 136 #define F_CRESET (0x00004000) /* Reset done not reported */ 137 #define F_CCONNECT (0x00008000) /* Connect change not reported */ 138 #define F_RESET (0x00010000) 139 #define F_ISOC_WARNED (0x00020000) 140 #define F_LSVH_WARNED (0x00040000) 141 142 #define F_DISABLED (F_NODEV|F_UDISABLED) 143 #define F_CHANGE (F_CRESET|F_CCONNECT) 144 145 #ifdef SLHCI_TRY_LSVH 146 unsigned int slhci_try_lsvh = 1; 147 #else 148 unsigned int slhci_try_lsvh = 0; 149 #endif 150 151 #define ADR 0 152 #define LEN 1 153 #define PID 2 154 #define DEV 3 155 #define STAT 2 156 #define CONT 3 157 158 #define A 0 159 #define B 1 160 161 static const uint8_t slhci_tregs[2][4] = 162 {{SL11_E0ADDR, SL11_E0LEN, SL11_E0PID, SL11_E0DEV }, 163 {SL11_E1ADDR, SL11_E1LEN, SL11_E1PID, SL11_E1DEV }}; 164 165 #define PT_ROOT_CTRL 0 166 #define PT_ROOT_INTR 1 167 #define PT_CTRL_SETUP 2 168 #define PT_CTRL_DATA 3 169 #define PT_CTRL_STATUS 4 170 #define PT_INTR 5 171 #define PT_BULK 6 172 #define PT_MAX 6 173 174 #ifdef SLHCI_DEBUG 175 #define SLHCI_MEM_ACCOUNTING 176 static const char * 177 pnames(int ptype) 178 { 179 static const char * const names[] = { "ROOT Ctrl", "ROOT Intr", 180 "Control (setup)", "Control (data)", "Control (status)", 181 "Interrupt", "Bulk", "BAD PTYPE" }; 182 183 KASSERT(sizeof(names) / sizeof(names[0]) == PT_MAX + 2); 184 if (ptype > PT_MAX) 185 ptype = PT_MAX + 1; 186 return names[ptype]; 187 } 188 #endif 189 190 #define SLHCI_XFER_TYPE(x) (((struct slhci_pipe *)((x)->pipe))->ptype) 191 192 /* 193 * Maximum allowable reserved bus time. Since intr/isoc transfers have 194 * unconditional priority, this is all that ensures control and bulk transfers 195 * get a chance. It is a single value for all frames since all transfers can 196 * use multiple consecutive frames if an error is encountered. Note that it 197 * is not really possible to fill the bus with transfers, so this value should 198 * be on the low side. Defaults to giving a warning unless SLHCI_NO_OVERTIME 199 * is defined. Full time is 12000 - END_BUSTIME. 200 */ 201 #ifndef SLHCI_RESERVED_BUSTIME 202 #define SLHCI_RESERVED_BUSTIME 5000 203 #endif 204 205 /* 206 * Rate for "exceeds reserved bus time" warnings (default) or errors. 207 * Warnings only happen when an endpoint open causes the time to go above 208 * SLHCI_RESERVED_BUSTIME, not if it is already above. 209 */ 210 #ifndef SLHCI_OVERTIME_WARNING_RATE 211 #define SLHCI_OVERTIME_WARNING_RATE { 60, 0 } /* 60 seconds */ 212 #endif 213 static const struct timeval reserved_warn_rate = SLHCI_OVERTIME_WARNING_RATE; 214 215 /* Rate for overflow warnings */ 216 #ifndef SLHCI_OVERFLOW_WARNING_RATE 217 #define SLHCI_OVERFLOW_WARNING_RATE { 60, 0 } /* 60 seconds */ 218 #endif 219 static const struct timeval overflow_warn_rate = SLHCI_OVERFLOW_WARNING_RATE; 220 221 /* 222 * For EOF, the spec says 42 bit times, plus (I think) a possible hub skew of 223 * 20 bit times. By default leave 66 bit times to start the transfer beyond 224 * the required time. Units are full-speed bit times (a bit over 5us per 64). 225 * Only multiples of 64 are significant. 226 */ 227 #define SLHCI_STANDARD_END_BUSTIME 128 228 #ifndef SLHCI_EXTRA_END_BUSTIME 229 #define SLHCI_EXTRA_END_BUSTIME 0 230 #endif 231 232 #define SLHCI_END_BUSTIME (SLHCI_STANDARD_END_BUSTIME+SLHCI_EXTRA_END_BUSTIME) 233 234 /* 235 * This is an approximation of the USB worst-case timings presented on p. 54 of 236 * the USB 1.1 spec translated to full speed bit times. 237 * FS = full speed with handshake, FSII = isoc in, FSIO = isoc out, 238 * FSI = isoc (worst case), LS = low speed 239 */ 240 #define SLHCI_FS_CONST 114 241 #define SLHCI_FSII_CONST 92 242 #define SLHCI_FSIO_CONST 80 243 #define SLHCI_FSI_CONST 92 244 #define SLHCI_LS_CONST 804 245 #ifndef SLHCI_PRECICE_BUSTIME 246 /* 247 * These values are < 3% too high (compared to the multiply and divide) for 248 * max sized packets. 249 */ 250 #define SLHCI_FS_DATA_TIME(len) (((u_int)(len)<<3)+(len)+((len)>>1)) 251 #define SLHCI_LS_DATA_TIME(len) (((u_int)(len)<<6)+((u_int)(len)<<4)) 252 #else 253 #define SLHCI_FS_DATA_TIME(len) (56*(len)/6) 254 #define SLHCI_LS_DATA_TIME(len) (449*(len)/6) 255 #endif 256 257 /* 258 * Set SLHCI_WAIT_SIZE to the desired maximum size of single FS transfer 259 * to poll for after starting a transfer. 64 gets all full speed transfers. 260 * Note that even if 0 polling will occur if data equal or greater than the 261 * transfer size is copied to the chip while the transfer is in progress. 262 * Setting SLHCI_WAIT_TIME to -12000 will disable polling. 263 */ 264 #ifndef SLHCI_WAIT_SIZE 265 #define SLHCI_WAIT_SIZE 8 266 #endif 267 #ifndef SLHCI_WAIT_TIME 268 #define SLHCI_WAIT_TIME (SLHCI_FS_CONST + \ 269 SLHCI_FS_DATA_TIME(SLHCI_WAIT_SIZE)) 270 #endif 271 const int slhci_wait_time = SLHCI_WAIT_TIME; 272 273 /* Root hub intr endpoint */ 274 #define ROOT_INTR_ENDPT 1 275 276 #ifndef SLHCI_MAX_RETRIES 277 #define SLHCI_MAX_RETRIES 3 278 #endif 279 280 /* Check IER values for corruption after this many unrecognized interrupts. */ 281 #ifndef SLHCI_IER_CHECK_FREQUENCY 282 #ifdef SLHCI_DEBUG 283 #define SLHCI_IER_CHECK_FREQUENCY 1 284 #else 285 #define SLHCI_IER_CHECK_FREQUENCY 100 286 #endif 287 #endif 288 289 /* Note that buffer points to the start of the buffer for this transfer. */ 290 struct slhci_pipe { 291 struct usbd_pipe pipe; 292 struct usbd_xfer *xfer; /* xfer in progress */ 293 uint8_t *buffer; /* I/O buffer (if needed) */ 294 struct gcq ap; /* All pipes */ 295 struct gcq to; /* Timeout list */ 296 struct gcq xq; /* Xfer queues */ 297 unsigned int pflags; /* Pipe flags */ 298 #define PF_GONE (0x01) /* Pipe is on disabled device */ 299 #define PF_TOGGLE (0x02) /* Data toggle status */ 300 #define PF_LS (0x04) /* Pipe is low speed */ 301 #define PF_PREAMBLE (0x08) /* Needs preamble */ 302 Frame to_frame; /* Frame number for timeout */ 303 Frame frame; /* Frame number for intr xfer */ 304 Frame lastframe; /* Previous frame number for intr */ 305 uint16_t bustime; /* Worst case bus time usage */ 306 uint16_t newbustime[2]; /* new bustimes (see index below) */ 307 uint8_t tregs[4]; /* ADR, LEN, PID, DEV */ 308 uint8_t newlen[2]; /* 0 = short data, 1 = ctrl data */ 309 uint8_t newpid; /* for ctrl */ 310 uint8_t wantshort; /* last xfer must be short */ 311 uint8_t control; /* Host control register settings */ 312 uint8_t nerrs; /* Current number of errors */ 313 uint8_t ptype; /* Pipe type */ 314 }; 315 316 #if defined(MULTIPROCESSOR) || defined(LOCKDEBUG) 317 #define SLHCI_WAITLOCK 1 318 #endif 319 320 #ifdef SLHCI_PROFILE_TRANSFER 321 #if defined(__mips__) 322 /* 323 * MIPS cycle counter does not directly count cpu cycles but is a different 324 * fraction of cpu cycles depending on the cpu. 325 */ 326 typedef u_int32_t cc_type; 327 #define CC_TYPE_FMT "%u" 328 #define slhci_cc_set(x) __asm volatile ("mfc0 %[cc], $9\n\tnop\n\tnop\n\tnop" \ 329 : [cc] "=r"(x)) 330 #elif defined(__i386__) 331 typedef u_int64_t cc_type; 332 #define CC_TYPE_FMT "%llu" 333 #define slhci_cc_set(x) __asm volatile ("rdtsc" : "=A"(x)) 334 #else 335 #error "SLHCI_PROFILE_TRANSFER not implemented on this MACHINE_ARCH (see sys/dev/ic/sl811hs.c)" 336 #endif 337 struct slhci_cc_time { 338 cc_type start; 339 cc_type stop; 340 unsigned int miscdata; 341 }; 342 #ifndef SLHCI_N_TIMES 343 #define SLHCI_N_TIMES 200 344 #endif 345 struct slhci_cc_times { 346 struct slhci_cc_time times[SLHCI_N_TIMES]; 347 int current; 348 int wraparound; 349 }; 350 351 static struct slhci_cc_times t_ab[2]; 352 static struct slhci_cc_times t_abdone; 353 static struct slhci_cc_times t_copy_to_dev; 354 static struct slhci_cc_times t_copy_from_dev; 355 static struct slhci_cc_times t_intr; 356 static struct slhci_cc_times t_lock; 357 static struct slhci_cc_times t_delay; 358 static struct slhci_cc_times t_hard_int; 359 static struct slhci_cc_times t_callback; 360 361 static inline void 362 start_cc_time(struct slhci_cc_times *times, unsigned int misc) { 363 times->times[times->current].miscdata = misc; 364 slhci_cc_set(times->times[times->current].start); 365 } 366 static inline void 367 stop_cc_time(struct slhci_cc_times *times) { 368 slhci_cc_set(times->times[times->current].stop); 369 if (++times->current >= SLHCI_N_TIMES) { 370 times->current = 0; 371 times->wraparound = 1; 372 } 373 } 374 375 void slhci_dump_cc_times(int); 376 377 void 378 slhci_dump_cc_times(int n) { 379 struct slhci_cc_times *times; 380 int i; 381 382 switch (n) { 383 default: 384 case 0: 385 printf("USBA start transfer to intr:\n"); 386 times = &t_ab[A]; 387 break; 388 case 1: 389 printf("USBB start transfer to intr:\n"); 390 times = &t_ab[B]; 391 break; 392 case 2: 393 printf("abdone:\n"); 394 times = &t_abdone; 395 break; 396 case 3: 397 printf("copy to device:\n"); 398 times = &t_copy_to_dev; 399 break; 400 case 4: 401 printf("copy from device:\n"); 402 times = &t_copy_from_dev; 403 break; 404 case 5: 405 printf("intr to intr:\n"); 406 times = &t_intr; 407 break; 408 case 6: 409 printf("lock to release:\n"); 410 times = &t_lock; 411 break; 412 case 7: 413 printf("delay time:\n"); 414 times = &t_delay; 415 break; 416 case 8: 417 printf("hard interrupt enter to exit:\n"); 418 times = &t_hard_int; 419 break; 420 case 9: 421 printf("callback:\n"); 422 times = &t_callback; 423 break; 424 } 425 426 if (times->wraparound) 427 for (i = times->current + 1; i < SLHCI_N_TIMES; i++) 428 printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT 429 " difference %8i miscdata %#x\n", 430 times->times[i].start, times->times[i].stop, 431 (int)(times->times[i].stop - 432 times->times[i].start), times->times[i].miscdata); 433 434 for (i = 0; i < times->current; i++) 435 printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT 436 " difference %8i miscdata %#x\n", times->times[i].start, 437 times->times[i].stop, (int)(times->times[i].stop - 438 times->times[i].start), times->times[i].miscdata); 439 } 440 #else 441 #define start_cc_time(x, y) 442 #define stop_cc_time(x) 443 #endif /* SLHCI_PROFILE_TRANSFER */ 444 445 typedef usbd_status (*LockCallFunc)(struct slhci_softc *, struct slhci_pipe 446 *, struct usbd_xfer *); 447 448 usbd_status slhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 449 void slhci_freem(struct usbd_bus *, usb_dma_t *); 450 struct usbd_xfer * slhci_allocx(struct usbd_bus *); 451 void slhci_freex(struct usbd_bus *, struct usbd_xfer *); 452 453 usbd_status slhci_transfer(struct usbd_xfer *); 454 usbd_status slhci_start(struct usbd_xfer *); 455 usbd_status slhci_root_start(struct usbd_xfer *); 456 usbd_status slhci_open(struct usbd_pipe *); 457 458 /* 459 * slhci_supported_rev, slhci_preinit, slhci_attach, slhci_detach, 460 * slhci_activate 461 */ 462 463 void slhci_abort(struct usbd_xfer *); 464 void slhci_close(struct usbd_pipe *); 465 void slhci_clear_toggle(struct usbd_pipe *); 466 void slhci_poll(struct usbd_bus *); 467 void slhci_done(struct usbd_xfer *); 468 void slhci_void(void *); 469 470 /* lock entry functions */ 471 472 #ifdef SLHCI_MEM_ACCOUNTING 473 void slhci_mem_use(struct usbd_bus *, int); 474 #endif 475 476 void slhci_reset_entry(void *); 477 usbd_status slhci_lock_call(struct slhci_softc *, LockCallFunc, 478 struct slhci_pipe *, struct usbd_xfer *); 479 void slhci_start_entry(struct slhci_softc *, struct slhci_pipe *); 480 void slhci_callback_entry(void *arg); 481 void slhci_do_callback(struct slhci_softc *, struct usbd_xfer *, int *); 482 483 /* slhci_intr */ 484 485 void slhci_main(struct slhci_softc *, int *); 486 487 /* in lock functions */ 488 489 static void slhci_write(struct slhci_softc *, uint8_t, uint8_t); 490 static uint8_t slhci_read(struct slhci_softc *, uint8_t); 491 static void slhci_write_multi(struct slhci_softc *, uint8_t, uint8_t *, int); 492 static void slhci_read_multi(struct slhci_softc *, uint8_t, uint8_t *, int); 493 494 static void slhci_waitintr(struct slhci_softc *, int); 495 static int slhci_dointr(struct slhci_softc *); 496 static void slhci_abdone(struct slhci_softc *, int); 497 static void slhci_tstart(struct slhci_softc *); 498 static void slhci_dotransfer(struct slhci_softc *); 499 500 static void slhci_callback(struct slhci_softc *, int *); 501 static void slhci_enter_xfer(struct slhci_softc *, struct slhci_pipe *); 502 #ifdef SLHCI_WAITLOCK 503 static void slhci_enter_xfers(struct slhci_softc *); 504 #endif 505 static void slhci_queue_timed(struct slhci_softc *, struct slhci_pipe *); 506 static void slhci_xfer_timer(struct slhci_softc *, struct slhci_pipe *); 507 508 static void slhci_do_repeat(struct slhci_softc *, struct usbd_xfer *); 509 static void slhci_callback_schedule(struct slhci_softc *); 510 static void slhci_do_callback_schedule(struct slhci_softc *); 511 #if 0 512 void slhci_pollxfer(struct slhci_softc *, struct usbd_xfer *, int *); /* XXX */ 513 #endif 514 515 static usbd_status slhci_do_poll(struct slhci_softc *, struct slhci_pipe *, 516 struct usbd_xfer *); 517 static usbd_status slhci_lsvh_warn(struct slhci_softc *, struct slhci_pipe *, 518 struct usbd_xfer *); 519 static usbd_status slhci_isoc_warn(struct slhci_softc *, struct slhci_pipe *, 520 struct usbd_xfer *); 521 static usbd_status slhci_open_pipe(struct slhci_softc *, struct slhci_pipe *, 522 struct usbd_xfer *); 523 static usbd_status slhci_close_pipe(struct slhci_softc *, struct slhci_pipe *, 524 struct usbd_xfer *); 525 static usbd_status slhci_do_abort(struct slhci_softc *, struct slhci_pipe *, 526 struct usbd_xfer *); 527 static usbd_status slhci_do_attach(struct slhci_softc *, struct slhci_pipe *, 528 struct usbd_xfer *); 529 static usbd_status slhci_halt(struct slhci_softc *, struct slhci_pipe *, 530 struct usbd_xfer *); 531 532 static void slhci_intrchange(struct slhci_softc *, uint8_t); 533 static void slhci_drain(struct slhci_softc *); 534 static void slhci_reset(struct slhci_softc *); 535 static int slhci_reserve_bustime(struct slhci_softc *, struct slhci_pipe *, 536 int); 537 static void slhci_insert(struct slhci_softc *); 538 539 static usbd_status slhci_clear_feature(struct slhci_softc *, unsigned int); 540 static usbd_status slhci_set_feature(struct slhci_softc *, unsigned int); 541 static void slhci_get_status(struct slhci_softc *, usb_port_status_t *); 542 static usbd_status slhci_root(struct slhci_softc *, struct slhci_pipe *, 543 struct usbd_xfer *); 544 545 #ifdef SLHCI_DEBUG 546 void slhci_log_buffer(struct usbd_xfer *); 547 void slhci_log_req(usb_device_request_t *); 548 void slhci_log_req_hub(usb_device_request_t *); 549 void slhci_log_dumpreg(void); 550 void slhci_log_xfer(struct usbd_xfer *); 551 void slhci_log_spipe(struct slhci_pipe *); 552 void slhci_print_intr(void); 553 void slhci_log_sc(void); 554 void slhci_log_slreq(struct slhci_pipe *); 555 556 extern int usbdebug; 557 558 /* Constified so you can read the values from ddb */ 559 const int SLHCI_D_TRACE = 0x0001; 560 const int SLHCI_D_MSG = 0x0002; 561 const int SLHCI_D_XFER = 0x0004; 562 const int SLHCI_D_MEM = 0x0008; 563 const int SLHCI_D_INTR = 0x0010; 564 const int SLHCI_D_SXFER = 0x0020; 565 const int SLHCI_D_ERR = 0x0080; 566 const int SLHCI_D_BUF = 0x0100; 567 const int SLHCI_D_SOFT = 0x0200; 568 const int SLHCI_D_WAIT = 0x0400; 569 const int SLHCI_D_ROOT = 0x0800; 570 /* SOF/NAK alone normally ignored, SOF also needs D_INTR */ 571 const int SLHCI_D_SOF = 0x1000; 572 const int SLHCI_D_NAK = 0x2000; 573 574 int slhci_debug = 0x1cbc; /* 0xc8c; */ /* 0xffff; */ /* 0xd8c; */ 575 struct slhci_softc *ssc; 576 #ifdef USB_DEBUG 577 int slhci_usbdebug = -1; /* value to set usbdebug on attach, -1 = leave alone */ 578 #endif 579 580 /* 581 * XXXMRG the SLHCI UVMHIST code has been converted to KERNHIST, but it has 582 * not been tested. the extra instructions to enable it can probably be 583 * commited to the kernhist code, and these instructions reduced to simply 584 * enabling SLHCI_DEBUG. 585 */ 586 587 /* 588 * Add KERNHIST history for debugging: 589 * 590 * Before kern_hist in sys/kern/subr_kernhist.c add: 591 * KERNHIST_DECL(slhcihist); 592 * 593 * In kern_hist add: 594 * if ((bitmask & KERNHIST_SLHCI)) 595 * hists[i++] = &slhcihist; 596 * 597 * In sys/sys/kernhist.h add KERNHIST_SLHCI define. 598 */ 599 600 #include <sys/kernhist.h> 601 KERNHIST_DECL(slhcihist); 602 603 #if !defined(KERNHIST) || !defined(KERNHIST_SLHCI) 604 #error "SLHCI_DEBUG requires KERNHIST (with modifications, see sys/dev/ic/sl81hs.c)" 605 #endif 606 607 #ifndef SLHCI_NHIST 608 #define SLHCI_NHIST 409600 609 #endif 610 const unsigned int SLHCI_HISTMASK = KERNHIST_SLHCI; 611 struct kern_history_ent slhci_he[SLHCI_NHIST]; 612 613 #define SLHCI_DEXEC(x, y) do { if ((slhci_debug & SLHCI_ ## x)) { y; } \ 614 } while (/*CONSTCOND*/ 0) 615 #define DDOLOG(f, a, b, c, d) do { const char *_kernhist_name = __func__; \ 616 u_long _kernhist_call = 0; KERNHIST_LOG(slhcihist, f, a, b, c, d); \ 617 } while (/*CONSTCOND*/0) 618 #define DLOG(x, f, a, b, c, d) SLHCI_DEXEC(x, DDOLOG(f, a, b, c, d)) 619 /* 620 * DLOGFLAG8 is a macro not a function so that flag name expressions are not 621 * evaluated unless the flag bit is set (which could save a register read). 622 * x is debug mask, y is flag identifier, z is flag variable, 623 * a-h are flag names (must evaluate to string constants, msb first). 624 */ 625 #define DDOLOGFLAG8(y, z, a, b, c, d, e, f, g, h) do { uint8_t _DLF8 = (z); \ 626 const char *_kernhist_name = __func__; u_long _kernhist_call = 0; \ 627 if (_DLF8 & 0xf0) KERNHIST_LOG(slhcihist, y " %s %s %s %s", _DLF8 & 0x80 ? \ 628 (a) : "", _DLF8 & 0x40 ? (b) : "", _DLF8 & 0x20 ? (c) : "", _DLF8 & 0x10 ? \ 629 (d) : ""); if (_DLF8 & 0x0f) KERNHIST_LOG(slhcihist, y " %s %s %s %s", \ 630 _DLF8 & 0x08 ? (e) : "", _DLF8 & 0x04 ? (f) : "", _DLF8 & 0x02 ? (g) : "", \ 631 _DLF8 & 0x01 ? (h) : ""); \ 632 } while (/*CONSTCOND*/ 0) 633 #define DLOGFLAG8(x, y, z, a, b, c, d, e, f, g, h) \ 634 SLHCI_DEXEC(x, DDOLOGFLAG8(y, z, a, b, c, d, e, f, g, h)) 635 /* 636 * DDOLOGBUF logs a buffer up to 8 bytes at a time. No identifier so that we 637 * can make it a real function. 638 */ 639 static void 640 DDOLOGBUF(uint8_t *buf, unsigned int length) 641 { 642 int i; 643 644 for(i=0; i+8 <= length; i+=8) 645 DDOLOG("%.4x %.4x %.4x %.4x", (buf[i] << 8) | buf[i+1], 646 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 647 (buf[i+6] << 8) | buf[i+7]); 648 if (length == i+7) 649 DDOLOG("%.4x %.4x %.4x %.2x", (buf[i] << 8) | buf[i+1], 650 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 651 buf[i+6]); 652 else if (length == i+6) 653 DDOLOG("%.4x %.4x %.4x", (buf[i] << 8) | buf[i+1], 654 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 0); 655 else if (length == i+5) 656 DDOLOG("%.4x %.4x %.2x", (buf[i] << 8) | buf[i+1], 657 (buf[i+2] << 8) | buf[i+3], buf[i+4], 0); 658 else if (length == i+4) 659 DDOLOG("%.4x %.4x", (buf[i] << 8) | buf[i+1], 660 (buf[i+2] << 8) | buf[i+3], 0,0); 661 else if (length == i+3) 662 DDOLOG("%.4x %.2x", (buf[i] << 8) | buf[i+1], buf[i+2], 0,0); 663 else if (length == i+2) 664 DDOLOG("%.4x", (buf[i] << 8) | buf[i+1], 0,0,0); 665 else if (length == i+1) 666 DDOLOG("%.2x", buf[i], 0,0,0); 667 } 668 #define DLOGBUF(x, b, l) SLHCI_DEXEC(x, DDOLOGBUF(b, l)) 669 #else /* now !SLHCI_DEBUG */ 670 #define slhci_log_spipe(spipe) ((void)0) 671 #define slhci_log_xfer(xfer) ((void)0) 672 #define SLHCI_DEXEC(x, y) ((void)0) 673 #define DDOLOG(f, a, b, c, d) ((void)0) 674 #define DLOG(x, f, a, b, c, d) ((void)0) 675 #define DDOLOGFLAG8(y, z, a, b, c, d, e, f, g, h) ((void)0) 676 #define DLOGFLAG8(x, y, z, a, b, c, d, e, f, g, h) ((void)0) 677 #define DDOLOGBUF(b, l) ((void)0) 678 #define DLOGBUF(x, b, l) ((void)0) 679 #endif /* SLHCI_DEBUG */ 680 681 #define SLHCI_MAINLOCKASSERT(sc) ((void)0) 682 #define SLHCI_LOCKASSERT(sc, main, wait) ((void)0) 683 684 #ifdef DIAGNOSTIC 685 #define LK_SLASSERT(exp, sc, spipe, xfer, ext) do { \ 686 if (!(exp)) { \ 687 printf("%s: assertion %s failed line %u function %s!" \ 688 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__);\ 689 DDOLOG("%s: assertion %s failed line %u function %s!" \ 690 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__);\ 691 slhci_halt(sc, spipe, xfer); \ 692 ext; \ 693 } \ 694 } while (/*CONSTCOND*/0) 695 #define UL_SLASSERT(exp, sc, spipe, xfer, ext) do { \ 696 if (!(exp)) { \ 697 printf("%s: assertion %s failed line %u function %s!" \ 698 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__); \ 699 DDOLOG("%s: assertion %s failed line %u function %s!" \ 700 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__); \ 701 slhci_lock_call(sc, &slhci_halt, spipe, xfer); \ 702 ext; \ 703 } \ 704 } while (/*CONSTCOND*/0) 705 #else 706 #define LK_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) 707 #define UL_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) 708 #endif 709 710 const struct usbd_bus_methods slhci_bus_methods = { 711 .open_pipe = slhci_open, 712 .soft_intr = slhci_void, 713 .do_poll = slhci_poll, 714 .allocm = slhci_allocm, 715 .freem = slhci_freem, 716 .allocx = slhci_allocx, 717 .freex = slhci_freex, 718 .get_lock = NULL, 719 }; 720 721 const struct usbd_pipe_methods slhci_pipe_methods = { 722 .transfer = slhci_transfer, 723 .start = slhci_start, 724 .abort = slhci_abort, 725 .close = slhci_close, 726 .cleartoggle = slhci_clear_toggle, 727 .done = slhci_done, 728 }; 729 730 const struct usbd_pipe_methods slhci_root_methods = { 731 .transfer = slhci_transfer, 732 .start = slhci_root_start, 733 .abort = slhci_abort, 734 .close = (void (*)(struct usbd_pipe *))slhci_void, /* XXX safe? */ 735 .cleartoggle = slhci_clear_toggle, 736 .done = slhci_done, 737 }; 738 739 /* Queue inlines */ 740 741 #define GOT_FIRST_TO(tvar, t) \ 742 GCQ_GOT_FIRST_TYPED(tvar, &(t)->to, struct slhci_pipe, to) 743 744 #define FIND_TO(var, t, tvar, cond) \ 745 GCQ_FIND_TYPED(var, &(t)->to, tvar, struct slhci_pipe, to, cond) 746 747 #define FOREACH_AP(var, t, tvar) \ 748 GCQ_FOREACH_TYPED(var, &(t)->ap, tvar, struct slhci_pipe, ap) 749 750 #define GOT_FIRST_TIMED_COND(tvar, t, cond) \ 751 GCQ_GOT_FIRST_COND_TYPED(tvar, &(t)->timed, struct slhci_pipe, xq, cond) 752 753 #define GOT_FIRST_CB(tvar, t) \ 754 GCQ_GOT_FIRST_TYPED(tvar, &(t)->q[Q_CB], struct slhci_pipe, xq) 755 756 #define DEQUEUED_CALLBACK(tvar, t) \ 757 GCQ_DEQUEUED_FIRST_TYPED(tvar, &(t)->q[Q_CALLBACKS], struct slhci_pipe, xq) 758 759 #define FIND_TIMED(var, t, tvar, cond) \ 760 GCQ_FIND_TYPED(var, &(t)->timed, tvar, struct slhci_pipe, xq, cond) 761 762 #ifdef SLHCI_WAITLOCK 763 #define DEQUEUED_WAITQ(tvar, sc) \ 764 GCQ_DEQUEUED_FIRST_TYPED(tvar, &(sc)->sc_waitq, struct slhci_pipe, xq) 765 766 static inline void 767 enter_waitq(struct slhci_softc *sc, struct slhci_pipe *spipe) 768 { 769 gcq_insert_tail(&sc->sc_waitq, &spipe->xq); 770 } 771 #endif 772 773 static inline void 774 enter_q(struct slhci_transfers *t, struct slhci_pipe *spipe, int i) 775 { 776 gcq_insert_tail(&t->q[i], &spipe->xq); 777 } 778 779 static inline void 780 enter_callback(struct slhci_transfers *t, struct slhci_pipe *spipe) 781 { 782 gcq_insert_tail(&t->q[Q_CALLBACKS], &spipe->xq); 783 } 784 785 static inline void 786 enter_all_pipes(struct slhci_transfers *t, struct slhci_pipe *spipe) 787 { 788 gcq_insert_tail(&t->ap, &spipe->ap); 789 } 790 791 /* Start out of lock functions. */ 792 793 struct slhci_mem { 794 usb_dma_block_t block; 795 uint8_t data[]; 796 }; 797 798 /* 799 * The SL811HS does not do DMA as a host controller, but NetBSD's USB interface 800 * assumes DMA is used. So we fake the DMA block. 801 */ 802 usbd_status 803 slhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 804 { 805 struct slhci_mem *mem; 806 807 mem = malloc(sizeof(struct slhci_mem) + size, M_USB, M_NOWAIT|M_ZERO); 808 809 DLOG(D_MEM, "allocm %p", mem, 0,0,0); 810 811 if (mem == NULL) 812 return USBD_NOMEM; 813 814 dma->block = &mem->block; 815 dma->block->kaddr = mem->data; 816 817 /* dma->offs = 0; */ 818 dma->block->nsegs = 1; 819 dma->block->size = size; 820 dma->block->align = size; 821 dma->block->flags |= USB_DMA_FULLBLOCK; 822 823 #ifdef SLHCI_MEM_ACCOUNTING 824 slhci_mem_use(bus, 1); 825 #endif 826 827 return USBD_NORMAL_COMPLETION; 828 } 829 830 void 831 slhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 832 { 833 DLOG(D_MEM, "freem %p", dma->block, 0,0,0); 834 835 #ifdef SLHCI_MEM_ACCOUNTING 836 slhci_mem_use(bus, -1); 837 #endif 838 839 free(dma->block, M_USB); 840 } 841 842 struct usbd_xfer * 843 slhci_allocx(struct usbd_bus *bus) 844 { 845 struct usbd_xfer *xfer; 846 847 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT|M_ZERO); 848 849 DLOG(D_MEM, "allocx %p", xfer, 0,0,0); 850 851 #ifdef SLHCI_MEM_ACCOUNTING 852 slhci_mem_use(bus, 1); 853 #endif 854 #ifdef DIAGNOSTIC 855 if (xfer != NULL) 856 xfer->busy_free = XFER_BUSY; 857 #endif 858 return xfer; 859 } 860 861 void 862 slhci_freex(struct usbd_bus *bus, struct usbd_xfer *xfer) 863 { 864 DLOG(D_MEM, "freex xfer %p spipe %p", xfer, xfer->pipe,0,0); 865 866 #ifdef SLHCI_MEM_ACCOUNTING 867 slhci_mem_use(bus, -1); 868 #endif 869 #ifdef DIAGNOSTIC 870 if (xfer->busy_free != XFER_BUSY) { 871 struct slhci_softc *sc = bus->hci_private; 872 printf("%s: slhci_freex: xfer=%p not busy, %#08x halted\n", 873 SC_NAME(sc), xfer, xfer->busy_free); 874 DDOLOG("%s: slhci_freex: xfer=%p not busy, %#08x halted\n", 875 SC_NAME(sc), xfer, xfer->busy_free, 0); 876 slhci_lock_call(sc, &slhci_halt, NULL, NULL); 877 return; 878 } 879 xfer->busy_free = XFER_FREE; 880 #endif 881 882 free(xfer, M_USB); 883 } 884 885 usbd_status 886 slhci_transfer(struct usbd_xfer *xfer) 887 { 888 usbd_status error; 889 int s; 890 891 DLOG(D_TRACE, "%s transfer xfer %p spipe %p ", 892 pnames(SLHCI_XFER_TYPE(xfer)), xfer, xfer->pipe,0); 893 894 /* Insert last in queue */ 895 error = usb_insert_transfer(xfer); 896 if (error) { 897 if (error != USBD_IN_PROGRESS) 898 DLOG(D_ERR, "usb_insert_transfer returns %d!", error, 899 0,0,0); 900 return error; 901 } 902 903 /* 904 * Pipe isn't running (otherwise error would be USBD_INPROG), 905 * so start it first. 906 */ 907 908 /* 909 * Start next is always done at splusb, so we do this here so 910 * start functions are always called at softusb. XXX 911 */ 912 s = splusb(); 913 error = xfer->pipe->methods->start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 914 splx(s); 915 916 return error; 917 } 918 919 /* It is not safe for start to return anything other than USBD_INPROG. */ 920 usbd_status 921 slhci_start(struct usbd_xfer *xfer) 922 { 923 struct slhci_softc *sc; 924 struct usbd_pipe *pipe; 925 struct slhci_pipe *spipe; 926 struct slhci_transfers *t; 927 usb_endpoint_descriptor_t *ed; 928 unsigned int max_packet; 929 930 pipe = xfer->pipe; 931 sc = pipe->device->bus->hci_private; 932 spipe = (struct slhci_pipe *)xfer->pipe; 933 t = &sc->sc_transfers; 934 ed = pipe->endpoint->edesc; 935 936 max_packet = UGETW(ed->wMaxPacketSize); 937 938 DLOG(D_TRACE, "%s start xfer %p spipe %p length %d", 939 pnames(spipe->ptype), xfer, spipe, xfer->length); 940 941 /* root transfers use slhci_root_start */ 942 943 KASSERT(spipe->xfer == NULL); /* not SLASSERT */ 944 945 xfer->actlen = 0; 946 xfer->status = USBD_IN_PROGRESS; 947 948 spipe->xfer = xfer; 949 950 spipe->nerrs = 0; 951 spipe->frame = t->frame; 952 spipe->control = SL11_EPCTRL_ARM_ENABLE; 953 spipe->tregs[DEV] = pipe->device->address; 954 spipe->tregs[PID] = spipe->newpid = UE_GET_ADDR(ed->bEndpointAddress) 955 | (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? SL11_PID_IN : 956 SL11_PID_OUT); 957 spipe->newlen[0] = xfer->length % max_packet; 958 spipe->newlen[1] = min(xfer->length, max_packet); 959 960 if (spipe->ptype == PT_BULK || spipe->ptype == PT_INTR) { 961 if (spipe->pflags & PF_TOGGLE) 962 spipe->control |= SL11_EPCTRL_DATATOGGLE; 963 spipe->tregs[LEN] = spipe->newlen[1]; 964 if (spipe->tregs[LEN]) 965 spipe->buffer = KERNADDR(&xfer->dmabuf, 0); 966 else 967 spipe->buffer = NULL; 968 spipe->lastframe = t->frame; 969 #if defined(DEBUG) || defined(SLHCI_DEBUG) 970 if (__predict_false(spipe->ptype == PT_INTR && 971 xfer->length > spipe->tregs[LEN])) { 972 printf("%s: Long INTR transfer not supported!\n", 973 SC_NAME(sc)); 974 DDOLOG("%s: Long INTR transfer not supported!\n", 975 SC_NAME(sc), 0,0,0); 976 xfer->status = USBD_INVAL; 977 } 978 #endif 979 } else { 980 /* ptype may be currently set to any control transfer type. */ 981 SLHCI_DEXEC(D_TRACE, slhci_log_xfer(xfer)); 982 983 /* SETUP contains IN/OUT bits also */ 984 spipe->tregs[PID] |= SL11_PID_SETUP; 985 spipe->tregs[LEN] = 8; 986 spipe->buffer = (uint8_t *)&xfer->request; 987 DLOGBUF(D_XFER, spipe->buffer, spipe->tregs[LEN]); 988 spipe->ptype = PT_CTRL_SETUP; 989 spipe->newpid &= ~SL11_PID_BITS; 990 if (xfer->length == 0 || (xfer->request.bmRequestType & 991 UT_READ)) 992 spipe->newpid |= SL11_PID_IN; 993 else 994 spipe->newpid |= SL11_PID_OUT; 995 } 996 997 if (xfer->flags & USBD_FORCE_SHORT_XFER && spipe->tregs[LEN] == 998 max_packet && (spipe->newpid & SL11_PID_BITS) == SL11_PID_OUT) 999 spipe->wantshort = 1; 1000 else 1001 spipe->wantshort = 0; 1002 1003 /* 1004 * The goal of newbustime and newlen is to avoid bustime calculation 1005 * in the interrupt. The calculations are not too complex, but they 1006 * complicate the conditional logic somewhat and doing them all in the 1007 * same place shares constants. Index 0 is "short length" for bulk and 1008 * ctrl data and 1 is "full length" for ctrl data (bulk/intr are 1009 * already set to full length). 1010 */ 1011 if (spipe->pflags & PF_LS) { 1012 /* 1013 * Setting PREAMBLE for directly connnected LS devices will 1014 * lock up the chip. 1015 */ 1016 if (spipe->pflags & PF_PREAMBLE) 1017 spipe->control |= SL11_EPCTRL_PREAMBLE; 1018 if (max_packet <= 8) { 1019 spipe->bustime = SLHCI_LS_CONST + 1020 SLHCI_LS_DATA_TIME(spipe->tregs[LEN]); 1021 spipe->newbustime[0] = SLHCI_LS_CONST + 1022 SLHCI_LS_DATA_TIME(spipe->newlen[0]); 1023 spipe->newbustime[1] = SLHCI_LS_CONST + 1024 SLHCI_LS_DATA_TIME(spipe->newlen[1]); 1025 } else 1026 xfer->status = USBD_INVAL; 1027 } else { 1028 UL_SLASSERT(pipe->device->speed == USB_SPEED_FULL, sc, 1029 spipe, xfer, return USBD_IN_PROGRESS); 1030 if (max_packet <= SL11_MAX_PACKET_SIZE) { 1031 spipe->bustime = SLHCI_FS_CONST + 1032 SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); 1033 spipe->newbustime[0] = SLHCI_FS_CONST + 1034 SLHCI_FS_DATA_TIME(spipe->newlen[0]); 1035 spipe->newbustime[1] = SLHCI_FS_CONST + 1036 SLHCI_FS_DATA_TIME(spipe->newlen[1]); 1037 } else 1038 xfer->status = USBD_INVAL; 1039 } 1040 1041 /* 1042 * The datasheet incorrectly indicates that DIRECTION is for 1043 * "transmit to host". It is for OUT and SETUP. The app note 1044 * describes its use correctly. 1045 */ 1046 if ((spipe->tregs[PID] & SL11_PID_BITS) != SL11_PID_IN) 1047 spipe->control |= SL11_EPCTRL_DIRECTION; 1048 1049 slhci_start_entry(sc, spipe); 1050 1051 return USBD_IN_PROGRESS; 1052 } 1053 1054 usbd_status 1055 slhci_root_start(struct usbd_xfer *xfer) 1056 { 1057 struct slhci_softc *sc; 1058 struct slhci_pipe *spipe; 1059 1060 spipe = (struct slhci_pipe *)xfer->pipe; 1061 sc = xfer->pipe->device->bus->hci_private; 1062 1063 return slhci_lock_call(sc, &slhci_root, spipe, xfer); 1064 } 1065 1066 usbd_status 1067 slhci_open(struct usbd_pipe *pipe) 1068 { 1069 struct usbd_device *dev; 1070 struct slhci_softc *sc; 1071 struct slhci_pipe *spipe; 1072 usb_endpoint_descriptor_t *ed; 1073 struct slhci_transfers *t; 1074 unsigned int max_packet, pmaxpkt; 1075 1076 dev = pipe->device; 1077 sc = dev->bus->hci_private; 1078 spipe = (struct slhci_pipe *)pipe; 1079 ed = pipe->endpoint->edesc; 1080 t = &sc->sc_transfers; 1081 1082 DLOG(D_TRACE, "slhci_open(addr=%d,ep=%d,rootaddr=%d)", 1083 dev->address, ed->bEndpointAddress, t->rootaddr, 0); 1084 1085 spipe->pflags = 0; 1086 spipe->frame = 0; 1087 spipe->lastframe = 0; 1088 spipe->xfer = NULL; 1089 spipe->buffer = NULL; 1090 1091 gcq_init(&spipe->ap); 1092 gcq_init(&spipe->to); 1093 gcq_init(&spipe->xq); 1094 1095 /* 1096 * The endpoint descriptor will not have been set up yet in the case 1097 * of the standard control pipe, so the max packet checks are also 1098 * necessary in start. 1099 */ 1100 1101 max_packet = UGETW(ed->wMaxPacketSize); 1102 1103 if (dev->speed == USB_SPEED_LOW) { 1104 spipe->pflags |= PF_LS; 1105 if (dev->myhub->address != t->rootaddr) { 1106 spipe->pflags |= PF_PREAMBLE; 1107 if (!slhci_try_lsvh) 1108 return slhci_lock_call(sc, &slhci_lsvh_warn, 1109 spipe, NULL); 1110 } 1111 pmaxpkt = 8; 1112 } else 1113 pmaxpkt = SL11_MAX_PACKET_SIZE; 1114 1115 if (max_packet > pmaxpkt) { 1116 DLOG(D_ERR, "packet too large! size %d spipe %p", max_packet, 1117 spipe, 0,0); 1118 return USBD_INVAL; 1119 } 1120 1121 if (dev->address == t->rootaddr) { 1122 switch (ed->bEndpointAddress) { 1123 case USB_CONTROL_ENDPOINT: 1124 spipe->ptype = PT_ROOT_CTRL; 1125 pipe->interval = 0; 1126 break; 1127 case UE_DIR_IN | ROOT_INTR_ENDPT: 1128 spipe->ptype = PT_ROOT_INTR; 1129 pipe->interval = 1; 1130 break; 1131 default: 1132 printf("%s: Invalid root endpoint!\n", SC_NAME(sc)); 1133 DDOLOG("%s: Invalid root endpoint!\n", SC_NAME(sc), 1134 0,0,0); 1135 return USBD_INVAL; 1136 } 1137 pipe->methods = __UNCONST(&slhci_root_methods); 1138 return USBD_NORMAL_COMPLETION; 1139 } else { 1140 switch (ed->bmAttributes & UE_XFERTYPE) { 1141 case UE_CONTROL: 1142 spipe->ptype = PT_CTRL_SETUP; 1143 pipe->interval = 0; 1144 break; 1145 case UE_INTERRUPT: 1146 spipe->ptype = PT_INTR; 1147 if (pipe->interval == USBD_DEFAULT_INTERVAL) 1148 pipe->interval = ed->bInterval; 1149 break; 1150 case UE_ISOCHRONOUS: 1151 return slhci_lock_call(sc, &slhci_isoc_warn, spipe, 1152 NULL); 1153 case UE_BULK: 1154 spipe->ptype = PT_BULK; 1155 pipe->interval = 0; 1156 break; 1157 } 1158 1159 DLOG(D_MSG, "open pipe %s interval %d", pnames(spipe->ptype), 1160 pipe->interval, 0,0); 1161 1162 pipe->methods = __UNCONST(&slhci_pipe_methods); 1163 1164 return slhci_lock_call(sc, &slhci_open_pipe, spipe, NULL); 1165 } 1166 } 1167 1168 int 1169 slhci_supported_rev(uint8_t rev) 1170 { 1171 return (rev >= SLTYPE_SL811HS_R12 && rev <= SLTYPE_SL811HS_R15); 1172 } 1173 1174 /* 1175 * Must be called before the ISR is registered. Interrupts can be shared so 1176 * slhci_intr could be called as soon as the ISR is registered. 1177 * Note max_current argument is actual current, but stored as current/2 1178 */ 1179 void 1180 slhci_preinit(struct slhci_softc *sc, PowerFunc pow, bus_space_tag_t iot, 1181 bus_space_handle_t ioh, uint16_t max_current, uint32_t stride) 1182 { 1183 struct slhci_transfers *t; 1184 int i; 1185 1186 t = &sc->sc_transfers; 1187 1188 #ifdef SLHCI_DEBUG 1189 KERNHIST_INIT_STATIC(slhcihist, slhci_he); 1190 #endif 1191 simple_lock_init(&sc->sc_lock); 1192 #ifdef SLHCI_WAITLOCK 1193 simple_lock_init(&sc->sc_wait_lock); 1194 #endif 1195 /* sc->sc_ier = 0; */ 1196 /* t->rootintr = NULL; */ 1197 t->flags = F_NODEV|F_UDISABLED; 1198 t->pend = INT_MAX; 1199 KASSERT(slhci_wait_time != INT_MAX); 1200 t->len[0] = t->len[1] = -1; 1201 if (max_current > 500) 1202 max_current = 500; 1203 t->max_current = (uint8_t)(max_current / 2); 1204 sc->sc_enable_power = pow; 1205 sc->sc_iot = iot; 1206 sc->sc_ioh = ioh; 1207 sc->sc_stride = stride; 1208 1209 KASSERT(Q_MAX+1 == sizeof(t->q) / sizeof(t->q[0])); 1210 1211 for (i = 0; i <= Q_MAX; i++) 1212 gcq_init_head(&t->q[i]); 1213 gcq_init_head(&t->timed); 1214 gcq_init_head(&t->to); 1215 gcq_init_head(&t->ap); 1216 #ifdef SLHCI_WAITLOCK 1217 gcq_init_head(&sc->sc_waitq); 1218 #endif 1219 } 1220 1221 int 1222 slhci_attach(struct slhci_softc *sc) 1223 { 1224 if (slhci_lock_call(sc, &slhci_do_attach, NULL, NULL) != 1225 USBD_NORMAL_COMPLETION) 1226 return -1; 1227 1228 /* Attach usb and uhub. */ 1229 sc->sc_child = config_found(SC_DEV(sc), &sc->sc_bus, usbctlprint); 1230 1231 if (!sc->sc_child) 1232 return -1; 1233 else 1234 return 0; 1235 } 1236 1237 int 1238 slhci_detach(struct slhci_softc *sc, int flags) 1239 { 1240 struct slhci_transfers *t; 1241 int ret; 1242 1243 t = &sc->sc_transfers; 1244 1245 /* By this point bus access is no longer allowed. */ 1246 1247 KASSERT(!(t->flags & F_ACTIVE)); 1248 1249 /* 1250 * To be MPSAFE is not sufficient to cancel callouts and soft 1251 * interrupts and assume they are dead since the code could already be 1252 * running or about to run. Wait until they are known to be done. 1253 */ 1254 while (t->flags & (F_RESET|F_CALLBACK)) 1255 tsleep(&sc, PPAUSE, "slhci_detach", hz); 1256 1257 softint_disestablish(sc->sc_cb_softintr); 1258 1259 ret = 0; 1260 1261 if (sc->sc_child) 1262 ret = config_detach(sc->sc_child, flags); 1263 1264 #ifdef SLHCI_MEM_ACCOUNTING 1265 if (sc->sc_mem_use) { 1266 printf("%s: Memory still in use after detach! mem_use (count)" 1267 " = %d\n", SC_NAME(sc), sc->sc_mem_use); 1268 DDOLOG("%s: Memory still in use after detach! mem_use (count)" 1269 " = %d\n", SC_NAME(sc), sc->sc_mem_use, 0,0); 1270 } 1271 #endif 1272 1273 return ret; 1274 } 1275 1276 int 1277 slhci_activate(device_t self, enum devact act) 1278 { 1279 struct slhci_softc *sc = device_private(self); 1280 1281 switch (act) { 1282 case DVACT_DEACTIVATE: 1283 slhci_lock_call(sc, &slhci_halt, NULL, NULL); 1284 return 0; 1285 default: 1286 return EOPNOTSUPP; 1287 } 1288 } 1289 1290 void 1291 slhci_abort(struct usbd_xfer *xfer) 1292 { 1293 struct slhci_softc *sc; 1294 struct slhci_pipe *spipe; 1295 1296 spipe = (struct slhci_pipe *)xfer->pipe; 1297 1298 if (spipe == NULL) 1299 goto callback; 1300 1301 sc = spipe->pipe.device->bus->hci_private; 1302 1303 DLOG(D_TRACE, "%s abort xfer %p spipe %p spipe->xfer %p", 1304 pnames(spipe->ptype), xfer, spipe, spipe->xfer); 1305 1306 slhci_lock_call(sc, &slhci_do_abort, spipe, xfer); 1307 1308 callback: 1309 xfer->status = USBD_CANCELLED; 1310 /* Abort happens at splusb. */ 1311 usb_transfer_complete(xfer); 1312 } 1313 1314 void 1315 slhci_close(struct usbd_pipe *pipe) 1316 { 1317 struct slhci_softc *sc; 1318 struct slhci_pipe *spipe; 1319 struct slhci_transfers *t; 1320 1321 sc = pipe->device->bus->hci_private; 1322 spipe = (struct slhci_pipe *)pipe; 1323 t = &sc->sc_transfers; 1324 1325 DLOG(D_TRACE, "%s close spipe %p spipe->xfer %p", 1326 pnames(spipe->ptype), spipe, spipe->xfer, 0); 1327 1328 slhci_lock_call(sc, &slhci_close_pipe, spipe, NULL); 1329 } 1330 1331 void 1332 slhci_clear_toggle(struct usbd_pipe *pipe) 1333 { 1334 struct slhci_pipe *spipe; 1335 1336 spipe = (struct slhci_pipe *)pipe; 1337 1338 DLOG(D_TRACE, "%s toggle spipe %p", pnames(spipe->ptype), 1339 spipe,0,0); 1340 1341 spipe->pflags &= ~PF_TOGGLE; 1342 1343 #ifdef DIAGNOSTIC 1344 if (spipe->xfer != NULL) { 1345 struct slhci_softc *sc = (struct slhci_softc 1346 *)pipe->device->bus; 1347 1348 printf("%s: Clear toggle on transfer in progress! halted\n", 1349 SC_NAME(sc)); 1350 DDOLOG("%s: Clear toggle on transfer in progress! halted\n", 1351 SC_NAME(sc), 0,0,0); 1352 slhci_halt(sc, NULL, NULL); 1353 } 1354 #endif 1355 } 1356 1357 void 1358 slhci_poll(struct usbd_bus *bus) /* XXX necessary? */ 1359 { 1360 struct slhci_softc *sc; 1361 1362 sc = bus->hci_private; 1363 1364 DLOG(D_TRACE, "slhci_poll", 0,0,0,0); 1365 1366 slhci_lock_call(sc, &slhci_do_poll, NULL, NULL); 1367 } 1368 1369 void 1370 slhci_done(struct usbd_xfer *xfer) 1371 { 1372 /* xfer may not be valid here */ 1373 } 1374 1375 void 1376 slhci_void(void *v) {} 1377 1378 /* End out of lock functions. Start lock entry functions. */ 1379 1380 #ifdef SLHCI_MEM_ACCOUNTING 1381 void 1382 slhci_mem_use(struct usbd_bus *bus, int val) 1383 { 1384 struct slhci_softc *sc = bus->hci_private; 1385 int s; 1386 1387 s = splhardusb(); 1388 simple_lock(&sc->sc_wait_lock); 1389 sc->sc_mem_use += val; 1390 simple_unlock(&sc->sc_wait_lock); 1391 splx(s); 1392 } 1393 #endif 1394 1395 void 1396 slhci_reset_entry(void *arg) 1397 { 1398 struct slhci_softc *sc; 1399 int s; 1400 1401 sc = (struct slhci_softc *)arg; 1402 1403 s = splhardusb(); 1404 simple_lock(&sc->sc_lock); 1405 slhci_reset(sc); 1406 /* 1407 * We cannot call the calback directly since we could then be reset 1408 * again before finishing and need the callout delay for timing. 1409 * Scheduling the callout again before we exit would defeat the reap 1410 * mechanism since we could be unlocked while the reset flag is not 1411 * set. The callback code will check the wait queue. 1412 */ 1413 slhci_callback_schedule(sc); 1414 simple_unlock(&sc->sc_lock); 1415 splx(s); 1416 } 1417 1418 usbd_status 1419 slhci_lock_call(struct slhci_softc *sc, LockCallFunc lcf, struct slhci_pipe 1420 *spipe, struct usbd_xfer *xfer) 1421 { 1422 usbd_status ret; 1423 int x, s; 1424 1425 x = splusb(); 1426 s = splhardusb(); 1427 simple_lock(&sc->sc_lock); 1428 ret = (*lcf)(sc, spipe, xfer); 1429 slhci_main(sc, &s); 1430 splx(s); 1431 splx(x); 1432 1433 return ret; 1434 } 1435 1436 void 1437 slhci_start_entry(struct slhci_softc *sc, struct slhci_pipe *spipe) 1438 { 1439 struct slhci_transfers *t; 1440 int s; 1441 1442 t = &sc->sc_transfers; 1443 1444 s = splhardusb(); 1445 #ifdef SLHCI_WAITLOCK 1446 if (simple_lock_try(&sc->sc_lock)) 1447 #else 1448 simple_lock(&sc->sc_lock); 1449 #endif 1450 { 1451 slhci_enter_xfer(sc, spipe); 1452 slhci_dotransfer(sc); 1453 slhci_main(sc, &s); 1454 #ifdef SLHCI_WAITLOCK 1455 } else { 1456 simple_lock(&sc->sc_wait_lock); 1457 enter_waitq(sc, spipe); 1458 simple_unlock(&sc->sc_wait_lock); 1459 #endif 1460 } 1461 splx(s); 1462 } 1463 1464 void 1465 slhci_callback_entry(void *arg) 1466 { 1467 struct slhci_softc *sc; 1468 struct slhci_transfers *t; 1469 int s, x; 1470 1471 1472 sc = (struct slhci_softc *)arg; 1473 1474 x = splusb(); 1475 s = splhardusb(); 1476 simple_lock(&sc->sc_lock); 1477 t = &sc->sc_transfers; 1478 DLOG(D_SOFT, "callback_entry flags %#x", t->flags, 0,0,0); 1479 1480 #ifdef SLHCI_WAITLOCK 1481 repeat: 1482 #endif 1483 slhci_callback(sc, &s); 1484 1485 #ifdef SLHCI_WAITLOCK 1486 simple_lock(&sc->sc_wait_lock); 1487 if (!gcq_empty(&sc->sc_waitq)) { 1488 slhci_enter_xfers(sc); 1489 simple_unlock(&sc->sc_wait_lock); 1490 slhci_dotransfer(sc); 1491 slhci_waitintr(sc, 0); 1492 goto repeat; 1493 } 1494 1495 t->flags &= ~F_CALLBACK; 1496 simple_unlock(&sc->sc_lock); 1497 simple_unlock(&sc->sc_wait_lock); 1498 #else 1499 t->flags &= ~F_CALLBACK; 1500 simple_unlock(&sc->sc_lock); 1501 #endif 1502 splx(s); 1503 splx(x); 1504 } 1505 1506 void 1507 slhci_do_callback(struct slhci_softc *sc, struct usbd_xfer *xfer, int *s) 1508 { 1509 SLHCI_LOCKASSERT(sc, locked, unlocked); 1510 1511 int repeat; 1512 1513 start_cc_time(&t_callback, (u_int)xfer); 1514 simple_unlock(&sc->sc_lock); 1515 splx(*s); 1516 1517 repeat = xfer->pipe->repeat; 1518 1519 usb_transfer_complete(xfer); 1520 1521 *s = splhardusb(); 1522 simple_lock(&sc->sc_lock); 1523 stop_cc_time(&t_callback); 1524 1525 if (repeat && !sc->sc_bus.use_polling) 1526 slhci_do_repeat(sc, xfer); 1527 } 1528 1529 int 1530 slhci_intr(void *arg) 1531 { 1532 struct slhci_softc *sc; 1533 int ret; 1534 1535 sc = (struct slhci_softc *)arg; 1536 1537 start_cc_time(&t_hard_int, (unsigned int)arg); 1538 simple_lock(&sc->sc_lock); 1539 1540 ret = slhci_dointr(sc); 1541 slhci_main(sc, NULL); 1542 1543 stop_cc_time(&t_hard_int); 1544 return ret; 1545 } 1546 1547 /* called with main lock only held, returns with locks released. */ 1548 void 1549 slhci_main(struct slhci_softc *sc, int *s) 1550 { 1551 struct slhci_transfers *t; 1552 1553 t = &sc->sc_transfers; 1554 1555 SLHCI_LOCKASSERT(sc, locked, unlocked); 1556 1557 #ifdef SLHCI_WAITLOCK 1558 waitcheck: 1559 #endif 1560 slhci_waitintr(sc, slhci_wait_time); 1561 1562 1563 /* 1564 * XXX Directly calling the callback anytime s != NULL 1565 * causes panic:sbdrop with aue (simultaneously using umass). 1566 * Doing that affects process accounting, but is supposed to work as 1567 * far as I can tell. 1568 * 1569 * The direct call is needed in the use_polling and disabled cases 1570 * since the soft interrupt is not available. In the disabled case, 1571 * this code can be reached from the usb detach, after the reaping of 1572 * the soft interrupt. That test could be !F_ACTIVE (in which case 1573 * s != NULL could be an assertion), but there is no reason not to 1574 * make the callbacks directly in the other DISABLED cases. 1575 */ 1576 if ((t->flags & F_ROOTINTR) || !gcq_empty(&t->q[Q_CALLBACKS])) { 1577 if (__predict_false(sc->sc_bus.use_polling || t->flags & 1578 F_DISABLED) && s != NULL) 1579 slhci_callback(sc, s); 1580 else 1581 slhci_callback_schedule(sc); 1582 } 1583 1584 #ifdef SLHCI_WAITLOCK 1585 simple_lock(&sc->sc_wait_lock); 1586 1587 if (!gcq_empty(&sc->sc_waitq)) { 1588 slhci_enter_xfers(sc); 1589 simple_unlock(&sc->sc_wait_lock); 1590 slhci_dotransfer(sc); 1591 goto waitcheck; 1592 } 1593 1594 simple_unlock(&sc->sc_lock); 1595 simple_unlock(&sc->sc_wait_lock); 1596 #else 1597 simple_unlock(&sc->sc_lock); 1598 #endif 1599 } 1600 1601 /* End lock entry functions. Start in lock function. */ 1602 1603 /* Register read/write routines and barriers. */ 1604 #ifdef SLHCI_BUS_SPACE_BARRIERS 1605 #define BSB(a, b, c, d, e) bus_space_barrier(a, b, c, d, BUS_SPACE_BARRIER_ # e) 1606 #define BSB_SYNC(a, b, c, d) bus_space_barrier(a, b, c, d, BUS_SPACE_BARRIER_SYNC) 1607 #else /* now !SLHCI_BUS_SPACE_BARRIERS */ 1608 #define BSB(a, b, c, d, e) 1609 #define BSB_SYNC(a, b, c, d) 1610 #endif /* SLHCI_BUS_SPACE_BARRIERS */ 1611 1612 static void 1613 slhci_write(struct slhci_softc *sc, uint8_t addr, uint8_t data) 1614 { 1615 bus_size_t paddr, pdata, pst, psz; 1616 bus_space_tag_t iot; 1617 bus_space_handle_t ioh; 1618 1619 paddr = pst = 0; 1620 pdata = sc->sc_stride; 1621 psz = pdata * 2; 1622 iot = sc->sc_iot; 1623 ioh = sc->sc_ioh; 1624 1625 bus_space_write_1(iot, ioh, paddr, addr); 1626 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1627 bus_space_write_1(iot, ioh, pdata, data); 1628 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1629 } 1630 1631 static uint8_t 1632 slhci_read(struct slhci_softc *sc, uint8_t addr) 1633 { 1634 bus_size_t paddr, pdata, pst, psz; 1635 bus_space_tag_t iot; 1636 bus_space_handle_t ioh; 1637 uint8_t data; 1638 1639 paddr = pst = 0; 1640 pdata = sc->sc_stride; 1641 psz = pdata * 2; 1642 iot = sc->sc_iot; 1643 ioh = sc->sc_ioh; 1644 1645 bus_space_write_1(iot, ioh, paddr, addr); 1646 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1647 data = bus_space_read_1(iot, ioh, pdata); 1648 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1649 return data; 1650 } 1651 1652 #if 0 /* auto-increment mode broken, see errata doc */ 1653 static void 1654 slhci_write_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1655 { 1656 bus_size_t paddr, pdata, pst, psz; 1657 bus_space_tag_t iot; 1658 bus_space_handle_t ioh; 1659 1660 paddr = pst = 0; 1661 pdata = sc->sc_stride; 1662 psz = pdata * 2; 1663 iot = sc->sc_iot; 1664 ioh = sc->sc_ioh; 1665 1666 bus_space_write_1(iot, ioh, paddr, addr); 1667 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1668 bus_space_write_multi_1(iot, ioh, pdata, buf, l); 1669 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1670 } 1671 1672 static void 1673 slhci_read_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1674 { 1675 bus_size_t paddr, pdata, pst, psz; 1676 bus_space_tag_t iot; 1677 bus_space_handle_t ioh; 1678 1679 paddr = pst = 0; 1680 pdata = sc->sc_stride; 1681 psz = pdata * 2; 1682 iot = sc->sc_iot; 1683 ioh = sc->sc_ioh; 1684 1685 bus_space_write_1(iot, ioh, paddr, addr); 1686 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1687 bus_space_read_multi_1(iot, ioh, pdata, buf, l); 1688 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1689 } 1690 #else 1691 static void 1692 slhci_write_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1693 { 1694 #if 1 1695 for (; l; addr++, buf++, l--) 1696 slhci_write(sc, addr, *buf); 1697 #else 1698 bus_size_t paddr, pdata, pst, psz; 1699 bus_space_tag_t iot; 1700 bus_space_handle_t ioh; 1701 1702 paddr = pst = 0; 1703 pdata = sc->sc_stride; 1704 psz = pdata * 2; 1705 iot = sc->sc_iot; 1706 ioh = sc->sc_ioh; 1707 1708 for (; l; addr++, buf++, l--) { 1709 bus_space_write_1(iot, ioh, paddr, addr); 1710 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1711 bus_space_write_1(iot, ioh, pdata, *buf); 1712 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1713 } 1714 #endif 1715 } 1716 1717 static void 1718 slhci_read_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1719 { 1720 #if 1 1721 for (; l; addr++, buf++, l--) 1722 *buf = slhci_read(sc, addr); 1723 #else 1724 bus_size_t paddr, pdata, pst, psz; 1725 bus_space_tag_t iot; 1726 bus_space_handle_t ioh; 1727 1728 paddr = pst = 0; 1729 pdata = sc->sc_stride; 1730 psz = pdata * 2; 1731 iot = sc->sc_iot; 1732 ioh = sc->sc_ioh; 1733 1734 for (; l; addr++, buf++, l--) { 1735 bus_space_write_1(iot, ioh, paddr, addr); 1736 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1737 *buf = bus_space_read_1(iot, ioh, pdata); 1738 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1739 } 1740 #endif 1741 } 1742 #endif 1743 1744 /* 1745 * After calling waitintr it is necessary to either call slhci_callback or 1746 * schedule the callback if necessary. The callback cannot be called directly 1747 * from the hard interrupt since it interrupts at a high IPL and callbacks 1748 * can do copyout and such. 1749 */ 1750 static void 1751 slhci_waitintr(struct slhci_softc *sc, int wait_time) 1752 { 1753 struct slhci_transfers *t; 1754 1755 t = &sc->sc_transfers; 1756 1757 SLHCI_LOCKASSERT(sc, locked, unlocked); 1758 1759 if (__predict_false(sc->sc_bus.use_polling)) 1760 wait_time = 12000; 1761 1762 while (t->pend <= wait_time) { 1763 DLOG(D_WAIT, "waiting... frame %d pend %d flags %#x", 1764 t->frame, t->pend, t->flags, 0); 1765 LK_SLASSERT(t->flags & F_ACTIVE, sc, NULL, NULL, return); 1766 LK_SLASSERT(t->flags & (F_AINPROG|F_BINPROG), sc, NULL, NULL, 1767 return); 1768 slhci_dointr(sc); 1769 } 1770 } 1771 1772 static int 1773 slhci_dointr(struct slhci_softc *sc) 1774 { 1775 struct slhci_transfers *t; 1776 struct slhci_pipe *tosp; 1777 uint8_t r; 1778 1779 t = &sc->sc_transfers; 1780 1781 SLHCI_LOCKASSERT(sc, locked, unlocked); 1782 1783 if (sc->sc_ier == 0) 1784 return 0; 1785 1786 r = slhci_read(sc, SL11_ISR); 1787 1788 #ifdef SLHCI_DEBUG 1789 if (slhci_debug & SLHCI_D_INTR && r & sc->sc_ier && 1790 ((r & ~(SL11_ISR_SOF|SL11_ISR_DATA)) || slhci_debug & 1791 SLHCI_D_SOF)) { 1792 uint8_t e, f; 1793 1794 e = slhci_read(sc, SL11_IER); 1795 f = slhci_read(sc, SL11_CTRL); 1796 DDOLOG("Flags=%#x IER=%#x ISR=%#x", t->flags, e, r, 0); 1797 DDOLOGFLAG8("Status=", r, "D+", (f & SL11_CTRL_SUSPEND) ? 1798 "RESUME" : "NODEV", "INSERT", "SOF", "res", "BABBLE", 1799 "USBB", "USBA"); 1800 } 1801 #endif 1802 1803 /* check IER for corruption occasionally. Assume that the above 1804 * sc_ier == 0 case works correctly. */ 1805 if (__predict_false(sc->sc_ier_check++ > SLHCI_IER_CHECK_FREQUENCY)) { 1806 sc->sc_ier_check = 0; 1807 if (sc->sc_ier != slhci_read(sc, SL11_IER)) { 1808 printf("%s: IER value corrupted! halted\n", 1809 SC_NAME(sc)); 1810 DDOLOG("%s: IER value corrupted! halted\n", 1811 SC_NAME(sc), 0,0,0); 1812 slhci_halt(sc, NULL, NULL); 1813 return 1; 1814 } 1815 } 1816 1817 r &= sc->sc_ier; 1818 1819 if (r == 0) 1820 return 0; 1821 1822 sc->sc_ier_check = 0; 1823 1824 slhci_write(sc, SL11_ISR, r); 1825 BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); 1826 1827 1828 /* If we have an insertion event we do not care about anything else. */ 1829 if (__predict_false(r & SL11_ISR_INSERT)) { 1830 slhci_insert(sc); 1831 return 1; 1832 } 1833 1834 stop_cc_time(&t_intr); 1835 start_cc_time(&t_intr, r); 1836 1837 if (r & SL11_ISR_SOF) { 1838 t->frame++; 1839 1840 gcq_merge_tail(&t->q[Q_CB], &t->q[Q_NEXT_CB]); 1841 1842 /* 1843 * SOFCHECK flags are cleared in tstart. Two flags are needed 1844 * since the first SOF interrupt processed after the transfer 1845 * is started might have been generated before the transfer 1846 * was started. 1847 */ 1848 if (__predict_false(t->flags & F_SOFCHECK2 && t->flags & 1849 (F_AINPROG|F_BINPROG))) { 1850 printf("%s: Missed transfer completion. halted\n", 1851 SC_NAME(sc)); 1852 DDOLOG("%s: Missed transfer completion. halted\n", 1853 SC_NAME(sc), 0,0,0); 1854 slhci_halt(sc, NULL, NULL); 1855 return 1; 1856 } else if (t->flags & F_SOFCHECK1) { 1857 t->flags |= F_SOFCHECK2; 1858 } else 1859 t->flags |= F_SOFCHECK1; 1860 1861 if (t->flags & F_CHANGE) 1862 t->flags |= F_ROOTINTR; 1863 1864 while (__predict_true(GOT_FIRST_TO(tosp, t)) && 1865 __predict_false(tosp->to_frame <= t->frame)) { 1866 tosp->xfer->status = USBD_TIMEOUT; 1867 slhci_do_abort(sc, tosp, tosp->xfer); 1868 enter_callback(t, tosp); 1869 } 1870 1871 /* 1872 * Start any waiting transfers right away. If none, we will 1873 * start any new transfers later. 1874 */ 1875 slhci_tstart(sc); 1876 } 1877 1878 if (r & (SL11_ISR_USBA|SL11_ISR_USBB)) { 1879 int ab; 1880 1881 if ((r & (SL11_ISR_USBA|SL11_ISR_USBB)) == 1882 (SL11_ISR_USBA|SL11_ISR_USBB)) { 1883 if (!(t->flags & (F_AINPROG|F_BINPROG))) 1884 return 1; /* presume card pulled */ 1885 1886 LK_SLASSERT((t->flags & (F_AINPROG|F_BINPROG)) != 1887 (F_AINPROG|F_BINPROG), sc, NULL, NULL, return 1); 1888 1889 /* 1890 * This should never happen (unless card removal just 1891 * occurred) but appeared frequently when both 1892 * transfers were started at the same time and was 1893 * accompanied by data corruption. It still happens 1894 * at times. I have not seen data correption except 1895 * when the STATUS bit gets set, which now causes the 1896 * driver to halt, however this should still not 1897 * happen so the warning is kept. See comment in 1898 * abdone, below. 1899 */ 1900 printf("%s: Transfer reported done but not started! " 1901 "Verify data integrity if not detaching. " 1902 " flags %#x r %x\n", SC_NAME(sc), t->flags, r); 1903 1904 if (!(t->flags & F_AINPROG)) 1905 r &= ~SL11_ISR_USBA; 1906 else 1907 r &= ~SL11_ISR_USBB; 1908 } 1909 t->pend = INT_MAX; 1910 1911 if (r & SL11_ISR_USBA) 1912 ab = A; 1913 else 1914 ab = B; 1915 1916 /* 1917 * This happens when a low speed device is attached to 1918 * a hub with chip rev 1.5. SOF stops, but a few transfers 1919 * still work before causing this error. 1920 */ 1921 if (!(t->flags & (ab ? F_BINPROG : F_AINPROG))) { 1922 printf("%s: %s done but not in progress! halted\n", 1923 SC_NAME(sc), ab ? "B" : "A"); 1924 DDOLOG("%s: %s done but not in progress! halted\n", 1925 SC_NAME(sc), ab ? "B" : "A", 0,0); 1926 slhci_halt(sc, NULL, NULL); 1927 return 1; 1928 } 1929 1930 t->flags &= ~(ab ? F_BINPROG : F_AINPROG); 1931 slhci_tstart(sc); 1932 stop_cc_time(&t_ab[ab]); 1933 start_cc_time(&t_abdone, t->flags); 1934 slhci_abdone(sc, ab); 1935 stop_cc_time(&t_abdone); 1936 } 1937 1938 slhci_dotransfer(sc); 1939 1940 return 1; 1941 } 1942 1943 static void 1944 slhci_abdone(struct slhci_softc *sc, int ab) 1945 { 1946 struct slhci_transfers *t; 1947 struct slhci_pipe *spipe; 1948 struct usbd_xfer *xfer; 1949 uint8_t status, buf_start; 1950 uint8_t *target_buf; 1951 unsigned int actlen; 1952 int head; 1953 1954 t = &sc->sc_transfers; 1955 1956 SLHCI_LOCKASSERT(sc, locked, unlocked); 1957 1958 DLOG(D_TRACE, "ABDONE flags %#x", t->flags, 0,0,0); 1959 1960 DLOG(D_MSG, "DONE %s spipe %p len %d xfer %p", ab ? "B" : "A", 1961 t->spipe[ab], t->len[ab], t->spipe[ab] ? 1962 t->spipe[ab]->xfer : NULL); 1963 1964 spipe = t->spipe[ab]; 1965 1966 /* 1967 * skip this one if aborted; do not call return from the rest of the 1968 * function unless halting, else t->len will not be cleared. 1969 */ 1970 if (spipe == NULL) 1971 goto done; 1972 1973 t->spipe[ab] = NULL; 1974 1975 xfer = spipe->xfer; 1976 1977 gcq_remove(&spipe->to); 1978 1979 LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); 1980 1981 status = slhci_read(sc, slhci_tregs[ab][STAT]); 1982 1983 /* 1984 * I saw no status or remaining length greater than the requested 1985 * length in early driver versions in circumstances I assumed caused 1986 * excess power draw. I am no longer able to reproduce this when 1987 * causing excess power draw circumstances. 1988 * 1989 * Disabling a power check and attaching aue to a keyboard and hub 1990 * that is directly attached (to CFU1U, 100mA max, aue 160mA, keyboard 1991 * 98mA) sometimes works and sometimes fails to configure. After 1992 * removing the aue and attaching a self-powered umass dvd reader 1993 * (unknown if it draws power from the host also) soon a single Error 1994 * status occurs then only timeouts. The controller soon halts freeing 1995 * memory due to being ONQU instead of BUSY. This may be the same 1996 * basic sequence that caused the no status/bad length errors. The 1997 * umass device seems to work (better at least) with the keyboard hub 1998 * when not first attaching aue (tested once reading an approximately 1999 * 200MB file). 2000 * 2001 * Overflow can indicate that the device and host disagree about how 2002 * much data has been transfered. This may indicate a problem at any 2003 * point during the transfer, not just when the error occurs. It may 2004 * indicate data corruption. A warning message is printed. 2005 * 2006 * Trying to use both A and B transfers at the same time results in 2007 * incorrect transfer completion ISR reports and the status will then 2008 * include SL11_EPSTAT_SETUP, which is apparently set while the 2009 * transfer is in progress. I also noticed data corruption, even 2010 * after waiting for the transfer to complete. The driver now avoids 2011 * trying to start both at the same time. 2012 * 2013 * I had accidently initialized the B registers before they were valid 2014 * in some driver versions. Since every other performance enhancing 2015 * feature has been confirmed buggy in the errata doc, I have not 2016 * tried both transfers at once again with the documented 2017 * initialization order. 2018 * 2019 * However, I have seen this problem again ("done but not started" 2020 * errors), which in some cases cases the SETUP status bit to remain 2021 * set on future transfers. In other cases, the SETUP bit is not set 2022 * and no data corruption occurs. This occured while using both umass 2023 * and aue on a powered hub (maybe triggered by some local activity 2024 * also) and needs several reads of the 200MB file to trigger. The 2025 * driver now halts if SETUP is detected. 2026 */ 2027 2028 actlen = 0; 2029 2030 if (__predict_false(!status)) { 2031 DDOLOG("no status! xfer %p spipe %p", xfer, spipe, 0,0); 2032 printf("%s: no status! halted\n", SC_NAME(sc)); 2033 slhci_halt(sc, spipe, xfer); 2034 return; 2035 } 2036 2037 #ifdef SLHCI_DEBUG 2038 if (slhci_debug & SLHCI_D_NAK || (status & SL11_EPSTAT_ERRBITS) != 2039 SL11_EPSTAT_NAK) 2040 DLOGFLAG8(D_XFER, "STATUS=", status, "STALL", "NAK", 2041 "Overflow", "Setup", "Data Toggle", "Timeout", "Error", 2042 "ACK"); 2043 #endif 2044 2045 if (!(status & SL11_EPSTAT_ERRBITS)) { 2046 unsigned int cont; 2047 cont = slhci_read(sc, slhci_tregs[ab][CONT]); 2048 if (cont != 0) 2049 DLOG(D_XFER, "cont %d len %d", cont, 2050 spipe->tregs[LEN], 0,0); 2051 if (__predict_false(cont > spipe->tregs[LEN])) { 2052 DDOLOG("cont > len! cont %d len %d xfer->length %d " 2053 "spipe %p", cont, spipe->tregs[LEN], xfer->length, 2054 spipe); 2055 printf("%s: cont > len! cont %d len %d xfer->length " 2056 "%d", SC_NAME(sc), cont, spipe->tregs[LEN], 2057 xfer->length); 2058 slhci_halt(sc, spipe, xfer); 2059 return; 2060 } else { 2061 spipe->nerrs = 0; 2062 actlen = spipe->tregs[LEN] - cont; 2063 } 2064 } 2065 2066 /* Actual copyin done after starting next transfer. */ 2067 if (actlen && (spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) { 2068 target_buf = spipe->buffer; 2069 buf_start = spipe->tregs[ADR]; 2070 } else { 2071 target_buf = NULL; 2072 buf_start = 0; /* XXX gcc uninitialized warnings */ 2073 } 2074 2075 if (status & SL11_EPSTAT_ERRBITS) { 2076 status &= SL11_EPSTAT_ERRBITS; 2077 if (status & SL11_EPSTAT_SETUP) { 2078 printf("%s: Invalid controller state detected! " 2079 "halted\n", SC_NAME(sc)); 2080 DDOLOG("%s: Invalid controller state detected! " 2081 "halted\n", SC_NAME(sc), 0,0,0); 2082 slhci_halt(sc, spipe, xfer); 2083 return; 2084 } else if (__predict_false(sc->sc_bus.use_polling)) { 2085 if (status == SL11_EPSTAT_STALL) 2086 xfer->status = USBD_STALLED; 2087 else if (status == SL11_EPSTAT_TIMEOUT) 2088 xfer->status = USBD_TIMEOUT; 2089 else if (status == SL11_EPSTAT_NAK) 2090 xfer->status = USBD_TIMEOUT; /*XXX*/ 2091 else 2092 xfer->status = USBD_IOERROR; 2093 head = Q_CALLBACKS; 2094 } else if (status == SL11_EPSTAT_NAK) { 2095 if (spipe->pipe.interval) { 2096 spipe->lastframe = spipe->frame = 2097 t->frame + spipe->pipe.interval; 2098 slhci_queue_timed(sc, spipe); 2099 goto queued; 2100 } 2101 head = Q_NEXT_CB; 2102 } else if (++spipe->nerrs > SLHCI_MAX_RETRIES || 2103 status == SL11_EPSTAT_STALL) { 2104 if (status == SL11_EPSTAT_STALL) 2105 xfer->status = USBD_STALLED; 2106 else if (status == SL11_EPSTAT_TIMEOUT) 2107 xfer->status = USBD_TIMEOUT; 2108 else 2109 xfer->status = USBD_IOERROR; 2110 2111 DLOG(D_ERR, "Max retries reached! status %#x " 2112 "xfer->status %#x", status, xfer->status, 0,0); 2113 DLOGFLAG8(D_ERR, "STATUS=", status, "STALL", 2114 "NAK", "Overflow", "Setup", "Data Toggle", 2115 "Timeout", "Error", "ACK"); 2116 2117 if (status == SL11_EPSTAT_OVERFLOW && 2118 ratecheck(&sc->sc_overflow_warn_rate, 2119 &overflow_warn_rate)) { 2120 printf("%s: Overflow condition: " 2121 "data corruption possible\n", 2122 SC_NAME(sc)); 2123 DDOLOG("%s: Overflow condition: " 2124 "data corruption possible\n", 2125 SC_NAME(sc), 0,0,0); 2126 } 2127 head = Q_CALLBACKS; 2128 } else { 2129 head = Q_NEXT_CB; 2130 } 2131 } else if (spipe->ptype == PT_CTRL_SETUP) { 2132 spipe->tregs[PID] = spipe->newpid; 2133 2134 if (xfer->length) { 2135 LK_SLASSERT(spipe->newlen[1] != 0, sc, spipe, xfer, 2136 return); 2137 spipe->tregs[LEN] = spipe->newlen[1]; 2138 spipe->bustime = spipe->newbustime[1]; 2139 spipe->buffer = KERNADDR(&xfer->dmabuf, 0); 2140 spipe->ptype = PT_CTRL_DATA; 2141 } else { 2142 status_setup: 2143 /* CTRL_DATA swaps direction in PID then jumps here */ 2144 spipe->tregs[LEN] = 0; 2145 if (spipe->pflags & PF_LS) 2146 spipe->bustime = SLHCI_LS_CONST; 2147 else 2148 spipe->bustime = SLHCI_FS_CONST; 2149 spipe->ptype = PT_CTRL_STATUS; 2150 spipe->buffer = NULL; 2151 } 2152 2153 /* Status or first data packet must be DATA1. */ 2154 spipe->control |= SL11_EPCTRL_DATATOGGLE; 2155 if ((spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) 2156 spipe->control &= ~SL11_EPCTRL_DIRECTION; 2157 else 2158 spipe->control |= SL11_EPCTRL_DIRECTION; 2159 2160 head = Q_CB; 2161 } else if (spipe->ptype == PT_CTRL_STATUS) { 2162 head = Q_CALLBACKS; 2163 } else { /* bulk, intr, control data */ 2164 xfer->actlen += actlen; 2165 spipe->control ^= SL11_EPCTRL_DATATOGGLE; 2166 2167 if (actlen == spipe->tregs[LEN] && (xfer->length > 2168 xfer->actlen || spipe->wantshort)) { 2169 spipe->buffer += actlen; 2170 LK_SLASSERT(xfer->length >= xfer->actlen, sc, 2171 spipe, xfer, return); 2172 if (xfer->length - xfer->actlen < actlen) { 2173 spipe->wantshort = 0; 2174 spipe->tregs[LEN] = spipe->newlen[0]; 2175 spipe->bustime = spipe->newbustime[0]; 2176 LK_SLASSERT(xfer->actlen + 2177 spipe->tregs[LEN] == xfer->length, sc, 2178 spipe, xfer, return); 2179 } 2180 head = Q_CB; 2181 } else if (spipe->ptype == PT_CTRL_DATA) { 2182 spipe->tregs[PID] ^= SLHCI_PID_SWAP_IN_OUT; 2183 goto status_setup; 2184 } else { 2185 if (spipe->ptype == PT_INTR) { 2186 spipe->lastframe += 2187 spipe->pipe.interval; 2188 /* 2189 * If ack, we try to keep the 2190 * interrupt rate by using lastframe 2191 * instead of the current frame. 2192 */ 2193 spipe->frame = spipe->lastframe + 2194 spipe->pipe.interval; 2195 } 2196 2197 /* 2198 * Set the toggle for the next transfer. It 2199 * has already been toggled above, so the 2200 * current setting will apply to the next 2201 * transfer. 2202 */ 2203 if (spipe->control & SL11_EPCTRL_DATATOGGLE) 2204 spipe->pflags |= PF_TOGGLE; 2205 else 2206 spipe->pflags &= ~PF_TOGGLE; 2207 2208 head = Q_CALLBACKS; 2209 } 2210 } 2211 2212 if (head == Q_CALLBACKS) { 2213 gcq_remove(&spipe->to); 2214 2215 if (xfer->status == USBD_IN_PROGRESS) { 2216 LK_SLASSERT(xfer->actlen <= xfer->length, sc, 2217 spipe, xfer, return); 2218 xfer->status = USBD_NORMAL_COMPLETION; 2219 #if 0 /* usb_transfer_complete will do this */ 2220 if (xfer->length == xfer->actlen || xfer->flags & 2221 USBD_SHORT_XFER_OK) 2222 xfer->status = USBD_NORMAL_COMPLETION; 2223 else 2224 xfer->status = USBD_SHORT_XFER; 2225 #endif 2226 } 2227 } 2228 2229 enter_q(t, spipe, head); 2230 2231 queued: 2232 if (target_buf != NULL) { 2233 slhci_dotransfer(sc); 2234 start_cc_time(&t_copy_from_dev, actlen); 2235 slhci_read_multi(sc, buf_start, target_buf, actlen); 2236 stop_cc_time(&t_copy_from_dev); 2237 DLOGBUF(D_BUF, target_buf, actlen); 2238 t->pend -= SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(actlen); 2239 } 2240 2241 done: 2242 t->len[ab] = -1; 2243 } 2244 2245 static void 2246 slhci_tstart(struct slhci_softc *sc) 2247 { 2248 struct slhci_transfers *t; 2249 struct slhci_pipe *spipe; 2250 int remaining_bustime; 2251 int s; 2252 2253 t = &sc->sc_transfers; 2254 2255 SLHCI_LOCKASSERT(sc, locked, unlocked); 2256 2257 if (!(t->flags & (F_AREADY|F_BREADY))) 2258 return; 2259 2260 if (t->flags & (F_AINPROG|F_BINPROG|F_DISABLED)) 2261 return; 2262 2263 /* 2264 * We have about 6 us to get from the bus time check to 2265 * starting the transfer or we might babble or the chip might fail to 2266 * signal transfer complete. This leaves no time for any other 2267 * interrupts. 2268 */ 2269 s = splhigh(); 2270 remaining_bustime = (int)(slhci_read(sc, SL811_CSOF)) << 6; 2271 remaining_bustime -= SLHCI_END_BUSTIME; 2272 2273 /* 2274 * Start one transfer only, clearing any aborted transfers that are 2275 * not yet in progress and skipping missed isoc. It is easier to copy 2276 * & paste most of the A/B sections than to make the logic work 2277 * otherwise and this allows better constant use. 2278 */ 2279 if (t->flags & F_AREADY) { 2280 spipe = t->spipe[A]; 2281 if (spipe == NULL) { 2282 t->flags &= ~F_AREADY; 2283 t->len[A] = -1; 2284 } else if (remaining_bustime >= spipe->bustime) { 2285 t->flags &= ~(F_AREADY|F_SOFCHECK1|F_SOFCHECK2); 2286 t->flags |= F_AINPROG; 2287 start_cc_time(&t_ab[A], spipe->tregs[LEN]); 2288 slhci_write(sc, SL11_E0CTRL, spipe->control); 2289 goto pend; 2290 } 2291 } 2292 if (t->flags & F_BREADY) { 2293 spipe = t->spipe[B]; 2294 if (spipe == NULL) { 2295 t->flags &= ~F_BREADY; 2296 t->len[B] = -1; 2297 } else if (remaining_bustime >= spipe->bustime) { 2298 t->flags &= ~(F_BREADY|F_SOFCHECK1|F_SOFCHECK2); 2299 t->flags |= F_BINPROG; 2300 start_cc_time(&t_ab[B], spipe->tregs[LEN]); 2301 slhci_write(sc, SL11_E1CTRL, spipe->control); 2302 pend: 2303 t->pend = spipe->bustime; 2304 } 2305 } 2306 splx(s); 2307 } 2308 2309 static void 2310 slhci_dotransfer(struct slhci_softc *sc) 2311 { 2312 struct slhci_transfers *t; 2313 struct slhci_pipe *spipe; 2314 int ab, i; 2315 2316 t = &sc->sc_transfers; 2317 2318 SLHCI_LOCKASSERT(sc, locked, unlocked); 2319 2320 while ((t->len[A] == -1 || t->len[B] == -1) && 2321 (GOT_FIRST_TIMED_COND(spipe, t, spipe->frame <= t->frame) || 2322 GOT_FIRST_CB(spipe, t))) { 2323 LK_SLASSERT(spipe->xfer != NULL, sc, spipe, NULL, return); 2324 LK_SLASSERT(spipe->ptype != PT_ROOT_CTRL && spipe->ptype != 2325 PT_ROOT_INTR, sc, spipe, NULL, return); 2326 2327 /* Check that this transfer can fit in the remaining memory. */ 2328 if (t->len[A] + t->len[B] + spipe->tregs[LEN] + 1 > 2329 SL11_MAX_PACKET_SIZE) { 2330 DLOG(D_XFER, "Transfer does not fit. alen %d blen %d " 2331 "len %d", t->len[A], t->len[B], spipe->tregs[LEN], 2332 0); 2333 return; 2334 } 2335 2336 gcq_remove(&spipe->xq); 2337 2338 if (t->len[A] == -1) { 2339 ab = A; 2340 spipe->tregs[ADR] = SL11_BUFFER_START; 2341 } else { 2342 ab = B; 2343 spipe->tregs[ADR] = SL11_BUFFER_END - 2344 spipe->tregs[LEN]; 2345 } 2346 2347 t->len[ab] = spipe->tregs[LEN]; 2348 2349 if (spipe->tregs[LEN] && (spipe->tregs[PID] & SL11_PID_BITS) 2350 != SL11_PID_IN) { 2351 start_cc_time(&t_copy_to_dev, 2352 spipe->tregs[LEN]); 2353 slhci_write_multi(sc, spipe->tregs[ADR], 2354 spipe->buffer, spipe->tregs[LEN]); 2355 stop_cc_time(&t_copy_to_dev); 2356 t->pend -= SLHCI_FS_CONST + 2357 SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); 2358 } 2359 2360 DLOG(D_MSG, "NEW TRANSFER %s flags %#x alen %d blen %d", 2361 ab ? "B" : "A", t->flags, t->len[0], t->len[1]); 2362 2363 if (spipe->tregs[LEN]) 2364 i = 0; 2365 else 2366 i = 1; 2367 2368 for (; i <= 3; i++) 2369 if (t->current_tregs[ab][i] != spipe->tregs[i]) { 2370 t->current_tregs[ab][i] = spipe->tregs[i]; 2371 slhci_write(sc, slhci_tregs[ab][i], 2372 spipe->tregs[i]); 2373 } 2374 2375 DLOG(D_SXFER, "Transfer len %d pid %#x dev %d type %s", 2376 spipe->tregs[LEN], spipe->tregs[PID], spipe->tregs[DEV], 2377 pnames(spipe->ptype)); 2378 2379 t->spipe[ab] = spipe; 2380 t->flags |= ab ? F_BREADY : F_AREADY; 2381 2382 slhci_tstart(sc); 2383 } 2384 } 2385 2386 /* 2387 * slhci_callback is called after the lock is taken from splusb. 2388 * s is pointer to old spl (splusb). 2389 */ 2390 static void 2391 slhci_callback(struct slhci_softc *sc, int *s) 2392 { 2393 struct slhci_transfers *t; 2394 struct slhci_pipe *spipe; 2395 struct usbd_xfer *xfer; 2396 2397 t = &sc->sc_transfers; 2398 2399 SLHCI_LOCKASSERT(sc, locked, unlocked); 2400 2401 DLOG(D_SOFT, "CB flags %#x", t->flags, 0,0,0); 2402 for (;;) { 2403 if (__predict_false(t->flags & F_ROOTINTR)) { 2404 t->flags &= ~F_ROOTINTR; 2405 if (t->rootintr != NULL) { 2406 u_char *p; 2407 2408 p = KERNADDR(&t->rootintr->dmabuf, 0); 2409 p[0] = 2; 2410 t->rootintr->actlen = 1; 2411 t->rootintr->status = USBD_NORMAL_COMPLETION; 2412 xfer = t->rootintr; 2413 goto do_callback; 2414 } 2415 } 2416 2417 2418 if (!DEQUEUED_CALLBACK(spipe, t)) 2419 return; 2420 2421 xfer = spipe->xfer; 2422 LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); 2423 spipe->xfer = NULL; 2424 DLOG(D_XFER, "xfer callback length %d actlen %d spipe %x " 2425 "type %s", xfer->length, xfer->actlen, spipe, 2426 pnames(spipe->ptype)); 2427 do_callback: 2428 slhci_do_callback(sc, xfer, s); 2429 } 2430 } 2431 2432 static void 2433 slhci_enter_xfer(struct slhci_softc *sc, struct slhci_pipe *spipe) 2434 { 2435 struct slhci_transfers *t; 2436 2437 t = &sc->sc_transfers; 2438 2439 SLHCI_MAINLOCKASSERT(sc); 2440 2441 if (__predict_false(t->flags & F_DISABLED) || 2442 __predict_false(spipe->pflags & PF_GONE)) { 2443 DLOG(D_MSG, "slhci_enter_xfer: DISABLED or GONE", 0,0,0,0); 2444 spipe->xfer->status = USBD_CANCELLED; 2445 } 2446 2447 if (spipe->xfer->status == USBD_IN_PROGRESS) { 2448 if (spipe->xfer->timeout) { 2449 spipe->to_frame = t->frame + spipe->xfer->timeout; 2450 slhci_xfer_timer(sc, spipe); 2451 } 2452 if (spipe->pipe.interval) 2453 slhci_queue_timed(sc, spipe); 2454 else 2455 enter_q(t, spipe, Q_CB); 2456 } else 2457 enter_callback(t, spipe); 2458 } 2459 2460 #ifdef SLHCI_WAITLOCK 2461 static void 2462 slhci_enter_xfers(struct slhci_softc *sc) 2463 { 2464 struct slhci_pipe *spipe; 2465 2466 SLHCI_LOCKASSERT(sc, locked, locked); 2467 2468 while (DEQUEUED_WAITQ(spipe, sc)) 2469 slhci_enter_xfer(sc, spipe); 2470 } 2471 #endif 2472 2473 static void 2474 slhci_queue_timed(struct slhci_softc *sc, struct slhci_pipe *spipe) 2475 { 2476 struct slhci_transfers *t; 2477 struct gcq *q; 2478 struct slhci_pipe *spp; 2479 2480 t = &sc->sc_transfers; 2481 2482 SLHCI_MAINLOCKASSERT(sc); 2483 2484 FIND_TIMED(q, t, spp, spp->frame > spipe->frame); 2485 gcq_insert_before(q, &spipe->xq); 2486 } 2487 2488 static void 2489 slhci_xfer_timer(struct slhci_softc *sc, struct slhci_pipe *spipe) 2490 { 2491 struct slhci_transfers *t; 2492 struct gcq *q; 2493 struct slhci_pipe *spp; 2494 2495 t = &sc->sc_transfers; 2496 2497 SLHCI_MAINLOCKASSERT(sc); 2498 2499 FIND_TO(q, t, spp, spp->to_frame >= spipe->to_frame); 2500 gcq_insert_before(q, &spipe->to); 2501 } 2502 2503 static void 2504 slhci_do_repeat(struct slhci_softc *sc, struct usbd_xfer *xfer) 2505 { 2506 struct slhci_transfers *t; 2507 struct slhci_pipe *spipe; 2508 2509 t = &sc->sc_transfers; 2510 spipe = (struct slhci_pipe *)xfer->pipe; 2511 2512 if (xfer == t->rootintr) 2513 return; 2514 2515 DLOG(D_TRACE, "REPEAT: xfer %p actlen %d frame %u now %u", 2516 xfer, xfer->actlen, spipe->frame, sc->sc_transfers.frame); 2517 2518 xfer->actlen = 0; 2519 spipe->xfer = xfer; 2520 if (spipe->tregs[LEN]) 2521 KASSERT(spipe->buffer == KERNADDR(&xfer->dmabuf, 0)); 2522 slhci_queue_timed(sc, spipe); 2523 slhci_dotransfer(sc); 2524 } 2525 2526 static void 2527 slhci_callback_schedule(struct slhci_softc *sc) 2528 { 2529 struct slhci_transfers *t; 2530 2531 t = &sc->sc_transfers; 2532 2533 SLHCI_LOCKASSERT(sc, locked, unlocked); 2534 2535 if (t->flags & F_ACTIVE) 2536 slhci_do_callback_schedule(sc); 2537 } 2538 2539 static void 2540 slhci_do_callback_schedule(struct slhci_softc *sc) 2541 { 2542 struct slhci_transfers *t; 2543 2544 t = &sc->sc_transfers; 2545 2546 SLHCI_LOCKASSERT(sc, locked, unlocked); 2547 2548 if (!(t->flags & F_CALLBACK)) { 2549 t->flags |= F_CALLBACK; 2550 softint_schedule(sc->sc_cb_softintr); 2551 } 2552 } 2553 2554 #if 0 2555 /* must be called with lock taken from splusb */ 2556 /* XXX static */ void 2557 slhci_pollxfer(struct slhci_softc *sc, struct usbd_xfer *xfer, int *s) 2558 { 2559 SLHCI_LOCKASSERT(sc, locked, unlocked); 2560 slhci_dotransfer(sc); 2561 do { 2562 slhci_dointr(sc); 2563 } while (xfer->status == USBD_IN_PROGRESS); 2564 slhci_do_callback(sc, xfer, s); 2565 } 2566 #endif 2567 2568 static usbd_status 2569 slhci_do_poll(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2570 usbd_xfer *xfer) 2571 { 2572 slhci_waitintr(sc, 0); 2573 2574 return USBD_NORMAL_COMPLETION; 2575 } 2576 2577 static usbd_status 2578 slhci_lsvh_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2579 usbd_xfer *xfer) 2580 { 2581 struct slhci_transfers *t; 2582 2583 t = &sc->sc_transfers; 2584 2585 if (!(t->flags & F_LSVH_WARNED)) { 2586 printf("%s: Low speed device via hub disabled, " 2587 "see slhci(4)\n", SC_NAME(sc)); 2588 DDOLOG("%s: Low speed device via hub disabled, " 2589 "see slhci(4)\n", SC_NAME(sc), 0,0,0); 2590 t->flags |= F_LSVH_WARNED; 2591 } 2592 return USBD_INVAL; 2593 } 2594 2595 static usbd_status 2596 slhci_isoc_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2597 usbd_xfer *xfer) 2598 { 2599 struct slhci_transfers *t; 2600 2601 t = &sc->sc_transfers; 2602 2603 if (!(t->flags & F_ISOC_WARNED)) { 2604 printf("%s: ISOC transfer not supported " 2605 "(see slhci(4))\n", SC_NAME(sc)); 2606 DDOLOG("%s: ISOC transfer not supported " 2607 "(see slhci(4))\n", SC_NAME(sc), 0,0,0); 2608 t->flags |= F_ISOC_WARNED; 2609 } 2610 return USBD_INVAL; 2611 } 2612 2613 static usbd_status 2614 slhci_open_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2615 usbd_xfer *xfer) 2616 { 2617 struct slhci_transfers *t; 2618 struct usbd_pipe *pipe; 2619 2620 t = &sc->sc_transfers; 2621 pipe = &spipe->pipe; 2622 2623 if (t->flags & F_DISABLED) 2624 return USBD_CANCELLED; 2625 else if (pipe->interval && !slhci_reserve_bustime(sc, spipe, 1)) 2626 return USBD_PENDING_REQUESTS; 2627 else { 2628 enter_all_pipes(t, spipe); 2629 return USBD_NORMAL_COMPLETION; 2630 } 2631 } 2632 2633 static usbd_status 2634 slhci_close_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2635 usbd_xfer *xfer) 2636 { 2637 struct slhci_transfers *t; 2638 struct usbd_pipe *pipe; 2639 2640 t = &sc->sc_transfers; 2641 pipe = &spipe->pipe; 2642 2643 if (pipe->interval && spipe->ptype != PT_ROOT_INTR) 2644 slhci_reserve_bustime(sc, spipe, 0); 2645 gcq_remove(&spipe->ap); 2646 return USBD_NORMAL_COMPLETION; 2647 } 2648 2649 static usbd_status 2650 slhci_do_abort(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2651 usbd_xfer *xfer) 2652 { 2653 struct slhci_transfers *t; 2654 2655 t = &sc->sc_transfers; 2656 2657 SLHCI_MAINLOCKASSERT(sc); 2658 2659 if (spipe->xfer == xfer) { 2660 if (spipe->ptype == PT_ROOT_INTR) { 2661 if (t->rootintr == spipe->xfer) /* XXX assert? */ 2662 t->rootintr = NULL; 2663 } else { 2664 gcq_remove(&spipe->to); 2665 gcq_remove(&spipe->xq); 2666 2667 if (t->spipe[A] == spipe) { 2668 t->spipe[A] = NULL; 2669 if (!(t->flags & F_AINPROG)) 2670 t->len[A] = -1; 2671 } else if (t->spipe[B] == spipe) { 2672 t->spipe[B] = NULL; 2673 if (!(t->flags & F_BINPROG)) 2674 t->len[B] = -1; 2675 } 2676 } 2677 2678 if (xfer->status != USBD_TIMEOUT) { 2679 spipe->xfer = NULL; 2680 spipe->pipe.repeat = 0; /* XXX timeout? */ 2681 } 2682 } 2683 2684 return USBD_NORMAL_COMPLETION; 2685 } 2686 2687 static usbd_status 2688 slhci_do_attach(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2689 usbd_xfer *xfer) 2690 { 2691 struct slhci_transfers *t; 2692 const char *rev; 2693 2694 t = &sc->sc_transfers; 2695 2696 SLHCI_LOCKASSERT(sc, locked, unlocked); 2697 2698 /* Detect and check the controller type */ 2699 t->sltype = SL11_GET_REV(slhci_read(sc, SL11_REV)); 2700 2701 /* SL11H not supported */ 2702 if (!slhci_supported_rev(t->sltype)) { 2703 if (t->sltype == SLTYPE_SL11H) 2704 printf("%s: SL11H unsupported or bus error!\n", 2705 SC_NAME(sc)); 2706 else 2707 printf("%s: Unknown chip revision!\n", SC_NAME(sc)); 2708 return USBD_INVAL; 2709 } 2710 2711 callout_init(&sc->sc_timer, CALLOUT_MPSAFE); 2712 callout_setfunc(&sc->sc_timer, slhci_reset_entry, sc); 2713 2714 /* 2715 * It is not safe to call the soft interrupt directly as 2716 * usb_schedsoftintr does in the use_polling case (due to locking). 2717 */ 2718 sc->sc_cb_softintr = softint_establish(SOFTINT_NET, 2719 slhci_callback_entry, sc); 2720 2721 #ifdef SLHCI_DEBUG 2722 ssc = sc; 2723 #ifdef USB_DEBUG 2724 if (slhci_usbdebug >= 0) 2725 usbdebug = slhci_usbdebug; 2726 #endif 2727 #endif 2728 2729 if (t->sltype == SLTYPE_SL811HS_R12) 2730 rev = " (rev 1.2)"; 2731 else if (t->sltype == SLTYPE_SL811HS_R14) 2732 rev = " (rev 1.4 or 1.5)"; 2733 else 2734 rev = " (unknown revision)"; 2735 2736 aprint_normal("%s: ScanLogic SL811HS/T USB Host Controller %s\n", 2737 SC_NAME(sc), rev); 2738 2739 aprint_normal("%s: Max Current %u mA (value by code, not by probe)\n", 2740 SC_NAME(sc), t->max_current * 2); 2741 2742 #if defined(SLHCI_DEBUG) || defined(SLHCI_NO_OVERTIME) || \ 2743 defined(SLHCI_TRY_LSVH) || defined(SLHCI_PROFILE_TRANSFER) 2744 aprint_normal("%s: driver options:" 2745 #ifdef SLHCI_DEBUG 2746 " SLHCI_DEBUG" 2747 #endif 2748 #ifdef SLHCI_TRY_LSVH 2749 " SLHCI_TRY_LSVH" 2750 #endif 2751 #ifdef SLHCI_NO_OVERTIME 2752 " SLHCI_NO_OVERTIME" 2753 #endif 2754 #ifdef SLHCI_PROFILE_TRANSFER 2755 " SLHCI_PROFILE_TRANSFER" 2756 #endif 2757 "\n", SC_NAME(sc)); 2758 #endif 2759 sc->sc_bus.usbrev = USBREV_1_1; 2760 sc->sc_bus.methods = __UNCONST(&slhci_bus_methods); 2761 sc->sc_bus.pipe_size = sizeof(struct slhci_pipe); 2762 2763 if (!sc->sc_enable_power) 2764 t->flags |= F_REALPOWER; 2765 2766 t->flags |= F_ACTIVE; 2767 2768 return USBD_NORMAL_COMPLETION; 2769 } 2770 2771 /* 2772 * Called to deactivate or stop use of the controller instead of panicing. 2773 * Will cancel the xfer correctly even when not on a list. 2774 */ 2775 static usbd_status 2776 slhci_halt(struct slhci_softc *sc, struct slhci_pipe *spipe, struct usbd_xfer 2777 *xfer) 2778 { 2779 struct slhci_transfers *t; 2780 2781 SLHCI_LOCKASSERT(sc, locked, unlocked); 2782 2783 t = &sc->sc_transfers; 2784 2785 DDOLOG("Halt! sc %p spipe %p xfer %p", sc, spipe, xfer, 0); 2786 2787 if (spipe != NULL) 2788 slhci_log_spipe(spipe); 2789 2790 if (xfer != NULL) 2791 slhci_log_xfer(xfer); 2792 2793 if (spipe != NULL && xfer != NULL && spipe->xfer == xfer && 2794 !gcq_onlist(&spipe->xq) && t->spipe[A] != spipe && t->spipe[B] != 2795 spipe) { 2796 xfer->status = USBD_CANCELLED; 2797 enter_callback(t, spipe); 2798 } 2799 2800 if (t->flags & F_ACTIVE) { 2801 slhci_intrchange(sc, 0); 2802 /* 2803 * leave power on when halting in case flash devices or disks 2804 * are attached, which may be writing and could be damaged 2805 * by abrupt power loss. The root hub clear power feature 2806 * should still work after halting. 2807 */ 2808 } 2809 2810 t->flags &= ~F_ACTIVE; 2811 t->flags |= F_UDISABLED; 2812 if (!(t->flags & F_NODEV)) 2813 t->flags |= F_NODEV|F_CCONNECT|F_ROOTINTR; 2814 slhci_drain(sc); 2815 2816 /* One last callback for the drain and device removal. */ 2817 slhci_do_callback_schedule(sc); 2818 2819 return USBD_NORMAL_COMPLETION; 2820 } 2821 2822 /* 2823 * There are three interrupt states: no interrupts during reset and after 2824 * device deactivation, INSERT only for no device present but power on, and 2825 * SOF, INSERT, ADONE, and BDONE when device is present. 2826 */ 2827 static void 2828 slhci_intrchange(struct slhci_softc *sc, uint8_t new_ier) 2829 { 2830 SLHCI_MAINLOCKASSERT(sc); 2831 if (sc->sc_ier != new_ier) { 2832 sc->sc_ier = new_ier; 2833 slhci_write(sc, SL11_IER, new_ier); 2834 BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); 2835 } 2836 } 2837 2838 /* 2839 * Drain: cancel all pending transfers and put them on the callback list and 2840 * set the UDISABLED flag. UDISABLED is cleared only by reset. 2841 */ 2842 static void 2843 slhci_drain(struct slhci_softc *sc) 2844 { 2845 struct slhci_transfers *t; 2846 struct slhci_pipe *spipe; 2847 struct gcq *q; 2848 int i; 2849 2850 SLHCI_LOCKASSERT(sc, locked, unlocked); 2851 2852 t = &sc->sc_transfers; 2853 2854 DLOG(D_MSG, "DRAIN flags %#x", t->flags, 0,0,0); 2855 2856 t->pend = INT_MAX; 2857 2858 for (i=0; i<=1; i++) { 2859 t->len[i] = -1; 2860 if (t->spipe[i] != NULL) { 2861 enter_callback(t, t->spipe[i]); 2862 t->spipe[i] = NULL; 2863 } 2864 } 2865 2866 /* Merge the queues into the callback queue. */ 2867 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_CB]); 2868 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_NEXT_CB]); 2869 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->timed); 2870 2871 /* 2872 * Cancel all pipes. Note that not all of these may be on the 2873 * callback queue yet; some could be in slhci_start, for example. 2874 */ 2875 FOREACH_AP(q, t, spipe) { 2876 spipe->pflags |= PF_GONE; 2877 spipe->pipe.repeat = 0; 2878 spipe->pipe.aborting = 1; 2879 if (spipe->xfer != NULL) 2880 spipe->xfer->status = USBD_CANCELLED; 2881 } 2882 2883 gcq_remove_all(&t->to); 2884 2885 t->flags |= F_UDISABLED; 2886 t->flags &= ~(F_AREADY|F_BREADY|F_AINPROG|F_BINPROG|F_LOWSPEED); 2887 } 2888 2889 /* 2890 * RESET: SL11_CTRL_RESETENGINE=1 and SL11_CTRL_JKSTATE=0 for 50ms 2891 * reconfigure SOF after reset, must wait 2.5us before USB bus activity (SOF) 2892 * check attached device speed. 2893 * must wait 100ms before USB transaction according to app note, 10ms 2894 * by spec. uhub does this delay 2895 * 2896 * Started from root hub set feature reset, which does step one. 2897 * use_polling will call slhci_reset directly, otherwise the callout goes 2898 * through slhci_reset_entry. 2899 */ 2900 void 2901 slhci_reset(struct slhci_softc *sc) 2902 { 2903 struct slhci_transfers *t; 2904 struct slhci_pipe *spipe; 2905 struct gcq *q; 2906 uint8_t r, pol, ctrl; 2907 2908 t = &sc->sc_transfers; 2909 SLHCI_MAINLOCKASSERT(sc); 2910 2911 stop_cc_time(&t_delay); 2912 2913 KASSERT(t->flags & F_ACTIVE); 2914 2915 start_cc_time(&t_delay, 0); 2916 stop_cc_time(&t_delay); 2917 2918 slhci_write(sc, SL11_CTRL, 0); 2919 start_cc_time(&t_delay, 3); 2920 DELAY(3); 2921 stop_cc_time(&t_delay); 2922 slhci_write(sc, SL11_ISR, 0xff); 2923 2924 r = slhci_read(sc, SL11_ISR); 2925 2926 if (r & SL11_ISR_INSERT) 2927 slhci_write(sc, SL11_ISR, SL11_ISR_INSERT); 2928 2929 if (r & SL11_ISR_NODEV) { 2930 DLOG(D_MSG, "NC", 0,0,0,0); 2931 /* 2932 * Normally, the hard interrupt insert routine will issue 2933 * CCONNECT, however we need to do it here if the detach 2934 * happened during reset. 2935 */ 2936 if (!(t->flags & F_NODEV)) 2937 t->flags |= F_CCONNECT|F_ROOTINTR|F_NODEV; 2938 slhci_intrchange(sc, SL11_IER_INSERT); 2939 } else { 2940 if (t->flags & F_NODEV) 2941 t->flags |= F_CCONNECT; 2942 t->flags &= ~(F_NODEV|F_LOWSPEED); 2943 if (r & SL11_ISR_DATA) { 2944 DLOG(D_MSG, "FS", 0,0,0,0); 2945 pol = ctrl = 0; 2946 } else { 2947 DLOG(D_MSG, "LS", 0,0,0,0); 2948 pol = SL811_CSOF_POLARITY; 2949 ctrl = SL11_CTRL_LOWSPEED; 2950 t->flags |= F_LOWSPEED; 2951 } 2952 2953 /* Enable SOF auto-generation */ 2954 t->frame = 0; /* write to SL811_CSOF will reset frame */ 2955 slhci_write(sc, SL11_SOFTIME, 0xe0); 2956 slhci_write(sc, SL811_CSOF, pol|SL811_CSOF_MASTER|0x2e); 2957 slhci_write(sc, SL11_CTRL, ctrl|SL11_CTRL_ENABLESOF); 2958 2959 /* 2960 * According to the app note, ARM must be set 2961 * for SOF generation to work. We initialize all 2962 * USBA registers here for current_tregs. 2963 */ 2964 slhci_write(sc, SL11_E0ADDR, SL11_BUFFER_START); 2965 slhci_write(sc, SL11_E0LEN, 0); 2966 slhci_write(sc, SL11_E0PID, SL11_PID_SOF); 2967 slhci_write(sc, SL11_E0DEV, 0); 2968 slhci_write(sc, SL11_E0CTRL, SL11_EPCTRL_ARM); 2969 2970 /* 2971 * Initialize B registers. This can't be done earlier since 2972 * they are not valid until the SL811_CSOF register is written 2973 * above due to SL11H compatability. 2974 */ 2975 slhci_write(sc, SL11_E1ADDR, SL11_BUFFER_END - 8); 2976 slhci_write(sc, SL11_E1LEN, 0); 2977 slhci_write(sc, SL11_E1PID, 0); 2978 slhci_write(sc, SL11_E1DEV, 0); 2979 2980 t->current_tregs[0][ADR] = SL11_BUFFER_START; 2981 t->current_tregs[0][LEN] = 0; 2982 t->current_tregs[0][PID] = SL11_PID_SOF; 2983 t->current_tregs[0][DEV] = 0; 2984 t->current_tregs[1][ADR] = SL11_BUFFER_END - 8; 2985 t->current_tregs[1][LEN] = 0; 2986 t->current_tregs[1][PID] = 0; 2987 t->current_tregs[1][DEV] = 0; 2988 2989 /* SOF start will produce USBA interrupt */ 2990 t->len[A] = 0; 2991 t->flags |= F_AINPROG; 2992 2993 slhci_intrchange(sc, SLHCI_NORMAL_INTERRUPTS); 2994 } 2995 2996 t->flags &= ~(F_UDISABLED|F_RESET); 2997 t->flags |= F_CRESET|F_ROOTINTR; 2998 FOREACH_AP(q, t, spipe) { 2999 spipe->pflags &= ~PF_GONE; 3000 spipe->pipe.aborting = 0; 3001 } 3002 DLOG(D_MSG, "RESET done flags %#x", t->flags, 0,0,0); 3003 } 3004 3005 /* returns 1 if succeeded, 0 if failed, reserve == 0 is unreserve */ 3006 static int 3007 slhci_reserve_bustime(struct slhci_softc *sc, struct slhci_pipe *spipe, int 3008 reserve) 3009 { 3010 struct slhci_transfers *t; 3011 int bustime, max_packet; 3012 3013 SLHCI_LOCKASSERT(sc, locked, unlocked); 3014 3015 t = &sc->sc_transfers; 3016 max_packet = UGETW(spipe->pipe.endpoint->edesc->wMaxPacketSize); 3017 3018 if (spipe->pflags & PF_LS) 3019 bustime = SLHCI_LS_CONST + SLHCI_LS_DATA_TIME(max_packet); 3020 else 3021 bustime = SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(max_packet); 3022 3023 if (!reserve) { 3024 t->reserved_bustime -= bustime; 3025 #ifdef DIAGNOSTIC 3026 if (t->reserved_bustime < 0) { 3027 printf("%s: reserved_bustime %d < 0!\n", 3028 SC_NAME(sc), t->reserved_bustime); 3029 DDOLOG("%s: reserved_bustime %d < 0!\n", 3030 SC_NAME(sc), t->reserved_bustime, 0,0); 3031 t->reserved_bustime = 0; 3032 } 3033 #endif 3034 return 1; 3035 } 3036 3037 if (t->reserved_bustime + bustime > SLHCI_RESERVED_BUSTIME) { 3038 if (ratecheck(&sc->sc_reserved_warn_rate, 3039 &reserved_warn_rate)) 3040 #ifdef SLHCI_NO_OVERTIME 3041 { 3042 printf("%s: Max reserved bus time exceeded! " 3043 "Erroring request.\n", SC_NAME(sc)); 3044 DDOLOG("%s: Max reserved bus time exceeded! " 3045 "Erroring request.\n", SC_NAME(sc), 0,0,0); 3046 } 3047 return 0; 3048 #else 3049 { 3050 printf("%s: Reserved bus time exceeds %d!\n", 3051 SC_NAME(sc), SLHCI_RESERVED_BUSTIME); 3052 DDOLOG("%s: Reserved bus time exceeds %d!\n", 3053 SC_NAME(sc), SLHCI_RESERVED_BUSTIME, 0,0); 3054 } 3055 #endif 3056 } 3057 3058 t->reserved_bustime += bustime; 3059 return 1; 3060 } 3061 3062 /* Device insertion/removal interrupt */ 3063 static void 3064 slhci_insert(struct slhci_softc *sc) 3065 { 3066 struct slhci_transfers *t; 3067 3068 t = &sc->sc_transfers; 3069 3070 SLHCI_LOCKASSERT(sc, locked, unlocked); 3071 3072 if (t->flags & F_NODEV) 3073 slhci_intrchange(sc, 0); 3074 else { 3075 slhci_drain(sc); 3076 slhci_intrchange(sc, SL11_IER_INSERT); 3077 } 3078 t->flags ^= F_NODEV; 3079 t->flags |= F_ROOTINTR|F_CCONNECT; 3080 DLOG(D_MSG, "INSERT intr: flags after %#x", t->flags, 0,0,0); 3081 } 3082 3083 /* 3084 * Data structures and routines to emulate the root hub. 3085 */ 3086 static const usb_device_descriptor_t slhci_devd = { 3087 USB_DEVICE_DESCRIPTOR_SIZE, 3088 UDESC_DEVICE, /* type */ 3089 {0x01, 0x01}, /* USB version */ 3090 UDCLASS_HUB, /* class */ 3091 UDSUBCLASS_HUB, /* subclass */ 3092 0, /* protocol */ 3093 64, /* max packet */ 3094 {USB_VENDOR_SCANLOGIC & 0xff, /* vendor ID (low) */ 3095 USB_VENDOR_SCANLOGIC >> 8 }, /* vendor ID (high) */ 3096 {0} /* ? */, /* product ID */ 3097 {0}, /* device */ 3098 1, /* index to manufacturer */ 3099 2, /* index to product */ 3100 0, /* index to serial number */ 3101 1 /* number of configurations */ 3102 }; 3103 3104 static const struct slhci_confd_t { 3105 const usb_config_descriptor_t confd; 3106 const usb_interface_descriptor_t ifcd; 3107 const usb_endpoint_descriptor_t endpd; 3108 } UPACKED slhci_confd = { 3109 { /* Configuration */ 3110 USB_CONFIG_DESCRIPTOR_SIZE, 3111 UDESC_CONFIG, 3112 {USB_CONFIG_DESCRIPTOR_SIZE + 3113 USB_INTERFACE_DESCRIPTOR_SIZE + 3114 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3115 1, /* number of interfaces */ 3116 1, /* configuration value */ 3117 0, /* index to configuration */ 3118 UC_SELF_POWERED, /* attributes */ 3119 0 /* max current, filled in later */ 3120 }, { /* Interface */ 3121 USB_INTERFACE_DESCRIPTOR_SIZE, 3122 UDESC_INTERFACE, 3123 0, /* interface number */ 3124 0, /* alternate setting */ 3125 1, /* number of endpoint */ 3126 UICLASS_HUB, /* class */ 3127 UISUBCLASS_HUB, /* subclass */ 3128 0, /* protocol */ 3129 0 /* index to interface */ 3130 }, { /* Endpoint */ 3131 USB_ENDPOINT_DESCRIPTOR_SIZE, 3132 UDESC_ENDPOINT, 3133 UE_DIR_IN | ROOT_INTR_ENDPT, /* endpoint address */ 3134 UE_INTERRUPT, /* attributes */ 3135 {240, 0}, /* max packet size */ 3136 255 /* interval */ 3137 } 3138 }; 3139 3140 static const usb_hub_descriptor_t slhci_hubd = { 3141 USB_HUB_DESCRIPTOR_SIZE, 3142 UDESC_HUB, 3143 1, /* number of ports */ 3144 {UHD_PWR_INDIVIDUAL | UHD_OC_NONE, 0}, /* hub characteristics */ 3145 50, /* 5:power on to power good, units of 2ms */ 3146 0, /* 6:maximum current, filled in later */ 3147 { 0x00 }, /* port is removable */ 3148 { 0x00 } /* port power control mask */ 3149 }; 3150 3151 static usbd_status 3152 slhci_clear_feature(struct slhci_softc *sc, unsigned int what) 3153 { 3154 struct slhci_transfers *t; 3155 usbd_status error; 3156 3157 t = &sc->sc_transfers; 3158 error = USBD_NORMAL_COMPLETION; 3159 3160 SLHCI_LOCKASSERT(sc, locked, unlocked); 3161 3162 if (what == UHF_PORT_POWER) { 3163 DLOG(D_MSG, "POWER_OFF", 0,0,0,0); 3164 t->flags &= ~F_POWER; 3165 if (!(t->flags & F_NODEV)) 3166 t->flags |= F_NODEV|F_CCONNECT|F_ROOTINTR; 3167 /* for x68k Nereid USB controller */ 3168 if (sc->sc_enable_power && (t->flags & F_REALPOWER)) { 3169 t->flags &= ~F_REALPOWER; 3170 sc->sc_enable_power(sc, POWER_OFF); 3171 } 3172 slhci_intrchange(sc, 0); 3173 slhci_drain(sc); 3174 } else if (what == UHF_C_PORT_CONNECTION) { 3175 t->flags &= ~F_CCONNECT; 3176 } else if (what == UHF_C_PORT_RESET) { 3177 t->flags &= ~F_CRESET; 3178 } else if (what == UHF_PORT_ENABLE) { 3179 slhci_drain(sc); 3180 } else if (what != UHF_PORT_SUSPEND) { 3181 DDOLOG("ClrPortFeatERR:value=%#.4x", what, 0,0,0); 3182 error = USBD_IOERROR; 3183 } 3184 3185 return error; 3186 } 3187 3188 static usbd_status 3189 slhci_set_feature(struct slhci_softc *sc, unsigned int what) 3190 { 3191 struct slhci_transfers *t; 3192 uint8_t r; 3193 3194 t = &sc->sc_transfers; 3195 3196 SLHCI_LOCKASSERT(sc, locked, unlocked); 3197 3198 if (what == UHF_PORT_RESET) { 3199 if (!(t->flags & F_ACTIVE)) { 3200 DDOLOG("SET PORT_RESET when not ACTIVE!", 3201 0,0,0,0); 3202 return USBD_INVAL; 3203 } 3204 if (!(t->flags & F_POWER)) { 3205 DDOLOG("SET PORT_RESET without PORT_POWER! flags %p", 3206 t->flags, 0,0,0); 3207 return USBD_INVAL; 3208 } 3209 if (t->flags & F_RESET) 3210 return USBD_NORMAL_COMPLETION; 3211 DLOG(D_MSG, "RESET flags %#x", t->flags, 0,0,0); 3212 slhci_intrchange(sc, 0); 3213 slhci_drain(sc); 3214 slhci_write(sc, SL11_CTRL, SL11_CTRL_RESETENGINE); 3215 /* usb spec says delay >= 10ms, app note 50ms */ 3216 start_cc_time(&t_delay, 50000); 3217 if (sc->sc_bus.use_polling) { 3218 DELAY(50000); 3219 slhci_reset(sc); 3220 } else { 3221 t->flags |= F_RESET; 3222 callout_schedule(&sc->sc_timer, max(mstohz(50), 2)); 3223 } 3224 } else if (what == UHF_PORT_SUSPEND) { 3225 printf("%s: USB Suspend not implemented!\n", SC_NAME(sc)); 3226 DDOLOG("%s: USB Suspend not implemented!\n", SC_NAME(sc), 3227 0,0,0); 3228 } else if (what == UHF_PORT_POWER) { 3229 DLOG(D_MSG, "PORT_POWER", 0,0,0,0); 3230 /* for x68k Nereid USB controller */ 3231 if (!(t->flags & F_ACTIVE)) 3232 return USBD_INVAL; 3233 if (t->flags & F_POWER) 3234 return USBD_NORMAL_COMPLETION; 3235 if (!(t->flags & F_REALPOWER)) { 3236 if (sc->sc_enable_power) 3237 sc->sc_enable_power(sc, POWER_ON); 3238 t->flags |= F_REALPOWER; 3239 } 3240 t->flags |= F_POWER; 3241 r = slhci_read(sc, SL11_ISR); 3242 if (r & SL11_ISR_INSERT) 3243 slhci_write(sc, SL11_ISR, SL11_ISR_INSERT); 3244 if (r & SL11_ISR_NODEV) { 3245 slhci_intrchange(sc, SL11_IER_INSERT); 3246 t->flags |= F_NODEV; 3247 } else { 3248 t->flags &= ~F_NODEV; 3249 t->flags |= F_CCONNECT|F_ROOTINTR; 3250 } 3251 } else { 3252 DDOLOG("SetPortFeatERR=%#.8x", what, 0,0,0); 3253 return USBD_IOERROR; 3254 } 3255 3256 return USBD_NORMAL_COMPLETION; 3257 } 3258 3259 static void 3260 slhci_get_status(struct slhci_softc *sc, usb_port_status_t *ps) 3261 { 3262 struct slhci_transfers *t; 3263 unsigned int status, change; 3264 3265 t = &sc->sc_transfers; 3266 3267 SLHCI_LOCKASSERT(sc, locked, unlocked); 3268 3269 /* 3270 * We do not have a way to detect over current or bable and 3271 * suspend is currently not implemented, so connect and reset 3272 * are the only changes that need to be reported. 3273 */ 3274 change = 0; 3275 if (t->flags & F_CCONNECT) 3276 change |= UPS_C_CONNECT_STATUS; 3277 if (t->flags & F_CRESET) 3278 change |= UPS_C_PORT_RESET; 3279 3280 status = 0; 3281 if (!(t->flags & F_NODEV)) 3282 status |= UPS_CURRENT_CONNECT_STATUS; 3283 if (!(t->flags & F_UDISABLED)) 3284 status |= UPS_PORT_ENABLED; 3285 if (t->flags & F_RESET) 3286 status |= UPS_RESET; 3287 if (t->flags & F_POWER) 3288 status |= UPS_PORT_POWER; 3289 if (t->flags & F_LOWSPEED) 3290 status |= UPS_LOW_SPEED; 3291 USETW(ps->wPortStatus, status); 3292 USETW(ps->wPortChange, change); 3293 DLOG(D_ROOT, "status=%#.4x, change=%#.4x", status, change, 0,0); 3294 } 3295 3296 static usbd_status 3297 slhci_root(struct slhci_softc *sc, struct slhci_pipe *spipe, struct usbd_xfer 3298 *xfer) 3299 { 3300 struct slhci_transfers *t; 3301 usb_device_request_t *req; 3302 unsigned int len, value, index, actlen, type; 3303 uint8_t *buf; 3304 usbd_status error; 3305 3306 t = &sc->sc_transfers; 3307 buf = NULL; 3308 3309 LK_SLASSERT(spipe != NULL && xfer != NULL, sc, spipe, xfer, return 3310 USBD_CANCELLED); 3311 3312 DLOG(D_TRACE, "%s start", pnames(SLHCI_XFER_TYPE(xfer)), 0,0,0); 3313 SLHCI_LOCKASSERT(sc, locked, unlocked); 3314 3315 if (spipe->ptype == PT_ROOT_INTR) { 3316 LK_SLASSERT(t->rootintr == NULL, sc, spipe, xfer, return 3317 USBD_CANCELLED); 3318 t->rootintr = xfer; 3319 if (t->flags & F_CHANGE) 3320 t->flags |= F_ROOTINTR; 3321 return USBD_IN_PROGRESS; 3322 } 3323 3324 error = USBD_IOERROR; /* XXX should be STALL */ 3325 actlen = 0; 3326 req = &xfer->request; 3327 3328 len = UGETW(req->wLength); 3329 value = UGETW(req->wValue); 3330 index = UGETW(req->wIndex); 3331 3332 type = req->bmRequestType; 3333 3334 if (len) 3335 buf = KERNADDR(&xfer->dmabuf, 0); 3336 3337 SLHCI_DEXEC(D_TRACE, slhci_log_req_hub(req)); 3338 3339 /* 3340 * USB requests for hubs have two basic types, standard and class. 3341 * Each could potentially have recipients of device, interface, 3342 * endpoint, or other. For the hub class, CLASS_OTHER means the port 3343 * and CLASS_DEVICE means the hub. For standard requests, OTHER 3344 * is not used. Standard request are described in section 9.4 of the 3345 * standard, hub class requests in 11.16. Each request is either read 3346 * or write. 3347 * 3348 * Clear Feature, Set Feature, and Status are defined for each of the 3349 * used recipients. Get Descriptor and Set Descriptor are defined for 3350 * both standard and hub class types with different descriptors. 3351 * Other requests have only one defined recipient and type. These 3352 * include: Get/Set Address, Get/Set Configuration, Get/Set Interface, 3353 * and Synch Frame for standard requests and Get Bus State for hub 3354 * class. 3355 * 3356 * When a device is first powered up it has address 0 until the 3357 * address is set. 3358 * 3359 * Hubs are only allowed to support one interface and may not have 3360 * isochronous endpoints. The results of the related requests are 3361 * undefined. 3362 * 3363 * The standard requires invalid or unsupported requests to return 3364 * STALL in the data stage, however this does not work well with 3365 * current error handling. XXX 3366 * 3367 * Some unsupported fields: 3368 * Clear Hub Feature is for C_HUB_LOCAL_POWER and C_HUB_OVER_CURRENT 3369 * Set Device Features is for ENDPOINT_HALT and DEVICE_REMOTE_WAKEUP 3370 * Get Bus State is optional sample of D- and D+ at EOF2 3371 */ 3372 3373 switch (req->bRequest) { 3374 /* Write Requests */ 3375 case UR_CLEAR_FEATURE: 3376 if (type == UT_WRITE_CLASS_OTHER) { 3377 if (index == 1 /* Port */) 3378 error = slhci_clear_feature(sc, value); 3379 else 3380 DLOG(D_ROOT, "Clear Port Feature " 3381 "index = %#.4x", index, 0,0,0); 3382 } 3383 break; 3384 case UR_SET_FEATURE: 3385 if (type == UT_WRITE_CLASS_OTHER) { 3386 if (index == 1 /* Port */) 3387 error = slhci_set_feature(sc, value); 3388 else 3389 DLOG(D_ROOT, "Set Port Feature " 3390 "index = %#.4x", index, 0,0,0); 3391 } else if (type != UT_WRITE_CLASS_DEVICE) 3392 DLOG(D_ROOT, "Set Device Feature " 3393 "ENDPOINT_HALT or DEVICE_REMOTE_WAKEUP " 3394 "not supported", 0,0,0,0); 3395 break; 3396 case UR_SET_ADDRESS: 3397 if (type == UT_WRITE_DEVICE) { 3398 DLOG(D_ROOT, "Set Address %#.4x", value, 0,0,0); 3399 if (value < USB_MAX_DEVICES) { 3400 t->rootaddr = value; 3401 error = USBD_NORMAL_COMPLETION; 3402 } 3403 } 3404 break; 3405 case UR_SET_CONFIG: 3406 if (type == UT_WRITE_DEVICE) { 3407 DLOG(D_ROOT, "Set Config %#.4x", value, 0,0,0); 3408 if (value == 0 || value == 1) { 3409 t->rootconf = value; 3410 error = USBD_NORMAL_COMPLETION; 3411 } 3412 } 3413 break; 3414 /* Read Requests */ 3415 case UR_GET_STATUS: 3416 if (type == UT_READ_CLASS_OTHER) { 3417 if (index == 1 /* Port */ && len == /* XXX >=? */ 3418 sizeof(usb_port_status_t)) { 3419 slhci_get_status(sc, (usb_port_status_t *) 3420 buf); 3421 actlen = sizeof(usb_port_status_t); 3422 error = USBD_NORMAL_COMPLETION; 3423 } else 3424 DLOG(D_ROOT, "Get Port Status index = %#.4x " 3425 "len = %#.4x", index, len, 0,0); 3426 } else if (type == UT_READ_CLASS_DEVICE) { /* XXX index? */ 3427 if (len == sizeof(usb_hub_status_t)) { 3428 DLOG(D_ROOT, "Get Hub Status", 3429 0,0,0,0); 3430 actlen = sizeof(usb_hub_status_t); 3431 memset(buf, 0, actlen); 3432 error = USBD_NORMAL_COMPLETION; 3433 } else 3434 DLOG(D_ROOT, "Get Hub Status bad len %#.4x", 3435 len, 0,0,0); 3436 } else if (type == UT_READ_DEVICE) { 3437 if (len >= 2) { 3438 USETW(((usb_status_t *)buf)->wStatus, UDS_SELF_POWERED); 3439 actlen = 2; 3440 error = USBD_NORMAL_COMPLETION; 3441 } 3442 } else if (type == (UT_READ_INTERFACE|UT_READ_ENDPOINT)) { 3443 if (len >= 2) { 3444 USETW(((usb_status_t *)buf)->wStatus, 0); 3445 actlen = 2; 3446 error = USBD_NORMAL_COMPLETION; 3447 } 3448 } 3449 break; 3450 case UR_GET_CONFIG: 3451 if (type == UT_READ_DEVICE) { 3452 DLOG(D_ROOT, "Get Config", 0,0,0,0); 3453 if (len > 0) { 3454 *buf = t->rootconf; 3455 actlen = 1; 3456 error = USBD_NORMAL_COMPLETION; 3457 } 3458 } 3459 break; 3460 case UR_GET_INTERFACE: 3461 if (type == UT_READ_INTERFACE) { 3462 if (len > 0) { 3463 *buf = 0; 3464 actlen = 1; 3465 error = USBD_NORMAL_COMPLETION; 3466 } 3467 } 3468 break; 3469 case UR_GET_DESCRIPTOR: 3470 if (type == UT_READ_DEVICE) { 3471 /* value is type (&0xff00) and index (0xff) */ 3472 if (value == (UDESC_DEVICE<<8)) { 3473 actlen = min(len, sizeof(slhci_devd)); 3474 memcpy(buf, &slhci_devd, actlen); 3475 error = USBD_NORMAL_COMPLETION; 3476 } else if (value == (UDESC_CONFIG<<8)) { 3477 actlen = min(len, sizeof(slhci_confd)); 3478 memcpy(buf, &slhci_confd, actlen); 3479 if (actlen > offsetof(usb_config_descriptor_t, 3480 bMaxPower)) 3481 ((usb_config_descriptor_t *) 3482 buf)->bMaxPower = t->max_current; 3483 /* 2 mA units */ 3484 error = USBD_NORMAL_COMPLETION; 3485 } else if (value == (UDESC_STRING<<8)) { 3486 /* language table XXX */ 3487 } else if (value == ((UDESC_STRING<<8)|1)) { 3488 /* Vendor */ 3489 actlen = usb_makestrdesc((usb_string_descriptor_t *) 3490 buf, len, "ScanLogic/Cypress"); 3491 error = USBD_NORMAL_COMPLETION; 3492 } else if (value == ((UDESC_STRING<<8)|2)) { 3493 /* Product */ 3494 actlen = usb_makestrdesc((usb_string_descriptor_t *) 3495 buf, len, "SL811HS/T root hub"); 3496 error = USBD_NORMAL_COMPLETION; 3497 } else 3498 DDOLOG("Unknown Get Descriptor %#.4x", 3499 value, 0,0,0); 3500 } else if (type == UT_READ_CLASS_DEVICE) { 3501 /* Descriptor number is 0 */ 3502 if (value == (UDESC_HUB<<8)) { 3503 actlen = min(len, sizeof(slhci_hubd)); 3504 memcpy(buf, &slhci_hubd, actlen); 3505 if (actlen > offsetof(usb_config_descriptor_t, 3506 bMaxPower)) 3507 ((usb_hub_descriptor_t *) 3508 buf)->bHubContrCurrent = 500 - 3509 t->max_current; 3510 error = USBD_NORMAL_COMPLETION; 3511 } else 3512 DDOLOG("Unknown Get Hub Descriptor %#.4x", 3513 value, 0,0,0); 3514 } 3515 break; 3516 } 3517 3518 if (error == USBD_NORMAL_COMPLETION) 3519 xfer->actlen = actlen; 3520 xfer->status = error; 3521 KASSERT(spipe->xfer == NULL); 3522 spipe->xfer = xfer; 3523 enter_callback(t, spipe); 3524 3525 return USBD_IN_PROGRESS; 3526 } 3527 3528 /* End in lock functions. Start debug functions. */ 3529 3530 #ifdef SLHCI_DEBUG 3531 void 3532 slhci_log_buffer(struct usbd_xfer *xfer) 3533 { 3534 u_char *buf; 3535 3536 if(xfer->length > 0 && 3537 UE_GET_DIR(xfer->pipe->endpoint->edesc->bEndpointAddress) == 3538 UE_DIR_IN) { 3539 buf = KERNADDR(&xfer->dmabuf, 0); 3540 DDOLOGBUF(buf, xfer->actlen); 3541 DDOLOG("len %d actlen %d short %d", xfer->length, 3542 xfer->actlen, xfer->length - xfer->actlen, 0); 3543 } 3544 } 3545 3546 void 3547 slhci_log_req(usb_device_request_t *r) 3548 { 3549 static const char *xmes[]={ 3550 "GETSTAT", 3551 "CLRFEAT", 3552 "res", 3553 "SETFEAT", 3554 "res", 3555 "SETADDR", 3556 "GETDESC", 3557 "SETDESC", 3558 "GETCONF", 3559 "SETCONF", 3560 "GETIN/F", 3561 "SETIN/F", 3562 "SYNC_FR", 3563 "UNKNOWN" 3564 }; 3565 int req, mreq, type, value, index, len; 3566 3567 req = r->bRequest; 3568 mreq = (req > 13) ? 13 : req; 3569 type = r->bmRequestType; 3570 value = UGETW(r->wValue); 3571 index = UGETW(r->wIndex); 3572 len = UGETW(r->wLength); 3573 3574 DDOLOG("request: %s %#x", xmes[mreq], type, 0,0); 3575 DDOLOG("request: r=%d,v=%d,i=%d,l=%d ", req, value, index, len); 3576 } 3577 3578 void 3579 slhci_log_req_hub(usb_device_request_t *r) 3580 { 3581 static const struct { 3582 int req; 3583 int type; 3584 const char *str; 3585 } conf[] = { 3586 { 1, 0x20, "ClrHubFeat" }, 3587 { 1, 0x23, "ClrPortFeat" }, 3588 { 2, 0xa3, "GetBusState" }, 3589 { 6, 0xa0, "GetHubDesc" }, 3590 { 0, 0xa0, "GetHubStat" }, 3591 { 0, 0xa3, "GetPortStat" }, 3592 { 7, 0x20, "SetHubDesc" }, 3593 { 3, 0x20, "SetHubFeat" }, 3594 { 3, 0x23, "SetPortFeat" }, 3595 {-1, 0, NULL}, 3596 }; 3597 int i; 3598 int value, index, len; 3599 const char *str; 3600 3601 value = UGETW(r->wValue); 3602 index = UGETW(r->wIndex); 3603 len = UGETW(r->wLength); 3604 for (i = 0; ; i++) { 3605 if (conf[i].req == -1 ) { 3606 slhci_log_req(r); 3607 return; 3608 } 3609 if (r->bmRequestType == conf[i].type && r->bRequest == conf[i].req) { 3610 str = conf[i].str; 3611 break; 3612 } 3613 } 3614 DDOLOG("hub request: %s v=%d,i=%d,l=%d ", str, value, index, len); 3615 } 3616 3617 void 3618 slhci_log_dumpreg(void) 3619 { 3620 uint8_t r; 3621 unsigned int aaddr, alen, baddr, blen; 3622 static u_char buf[240]; 3623 3624 r = slhci_read(ssc, SL11_E0CTRL); 3625 DDOLOG("USB A Host Control = %#.2x", r, 0,0,0); 3626 DDOLOGFLAG8("E0CTRL=", r, "Preamble", "Data Toggle", "SOF Sync", 3627 "ISOC", "res", "Out", "Enable", "Arm"); 3628 aaddr = slhci_read(ssc, SL11_E0ADDR); 3629 DDOLOG("USB A Base Address = %u", aaddr, 0,0,0); 3630 alen = slhci_read(ssc, SL11_E0LEN); 3631 DDOLOG("USB A Length = %u", alen, 0,0,0); 3632 r = slhci_read(ssc, SL11_E0STAT); 3633 DDOLOG("USB A Status = %#.2x", r, 0,0,0); 3634 DDOLOGFLAG8("E0STAT=", r, "STALL", "NAK", "Overflow", "Setup", 3635 "Data Toggle", "Timeout", "Error", "ACK"); 3636 r = slhci_read(ssc, SL11_E0CONT); 3637 DDOLOG("USB A Remaining or Overflow Length = %u", r, 0,0,0); 3638 r = slhci_read(ssc, SL11_E1CTRL); 3639 DDOLOG("USB B Host Control = %#.2x", r, 0,0,0); 3640 DDOLOGFLAG8("E1CTRL=", r, "Preamble", "Data Toggle", "SOF Sync", 3641 "ISOC", "res", "Out", "Enable", "Arm"); 3642 baddr = slhci_read(ssc, SL11_E1ADDR); 3643 DDOLOG("USB B Base Address = %u", baddr, 0,0,0); 3644 blen = slhci_read(ssc, SL11_E1LEN); 3645 DDOLOG("USB B Length = %u", blen, 0,0,0); 3646 r = slhci_read(ssc, SL11_E1STAT); 3647 DDOLOG("USB B Status = %#.2x", r, 0,0,0); 3648 DDOLOGFLAG8("E1STAT=", r, "STALL", "NAK", "Overflow", "Setup", 3649 "Data Toggle", "Timeout", "Error", "ACK"); 3650 r = slhci_read(ssc, SL11_E1CONT); 3651 DDOLOG("USB B Remaining or Overflow Length = %u", r, 0,0,0); 3652 3653 r = slhci_read(ssc, SL11_CTRL); 3654 DDOLOG("Control = %#.2x", r, 0,0,0); 3655 DDOLOGFLAG8("CTRL=", r, "res", "Suspend", "LOW Speed", 3656 "J-K State Force", "Reset", "res", "res", "SOF"); 3657 r = slhci_read(ssc, SL11_IER); 3658 DDOLOG("Interrupt Enable = %#.2x", r, 0,0,0); 3659 DDOLOGFLAG8("IER=", r, "D+ **IER!**", "Device Detect/Resume", 3660 "Insert/Remove", "SOF", "res", "res", "USBB", "USBA"); 3661 r = slhci_read(ssc, SL11_ISR); 3662 DDOLOG("Interrupt Status = %#.2x", r, 0,0,0); 3663 DDOLOGFLAG8("ISR=", r, "D+", "Device Detect/Resume", 3664 "Insert/Remove", "SOF", "res", "res", "USBB", "USBA"); 3665 r = slhci_read(ssc, SL11_REV); 3666 DDOLOG("Revision = %#.2x", r, 0,0,0); 3667 r = slhci_read(ssc, SL811_CSOF); 3668 DDOLOG("SOF Counter = %#.2x", r, 0,0,0); 3669 3670 if (alen && aaddr >= SL11_BUFFER_START && aaddr < SL11_BUFFER_END && 3671 alen <= SL11_MAX_PACKET_SIZE && aaddr + alen <= SL11_BUFFER_END) { 3672 slhci_read_multi(ssc, aaddr, buf, alen); 3673 DDOLOG("USBA Buffer: start %u len %u", aaddr, alen, 0,0); 3674 DDOLOGBUF(buf, alen); 3675 } else if (alen) 3676 DDOLOG("USBA Buffer Invalid", 0,0,0,0); 3677 3678 if (blen && baddr >= SL11_BUFFER_START && baddr < SL11_BUFFER_END && 3679 blen <= SL11_MAX_PACKET_SIZE && baddr + blen <= SL11_BUFFER_END) { 3680 slhci_read_multi(ssc, baddr, buf, blen); 3681 DDOLOG("USBB Buffer: start %u len %u", baddr, blen, 0,0); 3682 DDOLOGBUF(buf, blen); 3683 } else if (blen) 3684 DDOLOG("USBB Buffer Invalid", 0,0,0,0); 3685 } 3686 3687 void 3688 slhci_log_xfer(struct usbd_xfer *xfer) 3689 { 3690 DDOLOG("xfer: length=%u, actlen=%u, flags=%#x, timeout=%u,", 3691 xfer->length, xfer->actlen, xfer->flags, xfer->timeout); 3692 if (xfer->dmabuf.block) 3693 DDOLOG("buffer=%p", KERNADDR(&xfer->dmabuf, 0), 0,0,0); 3694 slhci_log_req_hub(&xfer->request); 3695 } 3696 3697 void 3698 slhci_log_spipe(struct slhci_pipe *spipe) 3699 { 3700 DDOLOG("spipe %p onlists: %s %s %s", spipe, gcq_onlist(&spipe->ap) ? 3701 "AP" : "", gcq_onlist(&spipe->to) ? "TO" : "", 3702 gcq_onlist(&spipe->xq) ? "XQ" : ""); 3703 DDOLOG("spipe: xfer %p buffer %p pflags %#x ptype %s", 3704 spipe->xfer, spipe->buffer, spipe->pflags, pnames(spipe->ptype)); 3705 } 3706 3707 void 3708 slhci_print_intr(void) 3709 { 3710 unsigned int ier, isr; 3711 ier = slhci_read(ssc, SL11_IER); 3712 isr = slhci_read(ssc, SL11_ISR); 3713 printf("IER: %#x ISR: %#x \n", ier, isr); 3714 } 3715 3716 #if 0 3717 void 3718 slhci_log_sc(void) 3719 { 3720 struct slhci_transfers *t; 3721 int i; 3722 3723 t = &ssc->sc_transfers; 3724 3725 DDOLOG("Flags=%#x", t->flags, 0,0,0); 3726 DDOLOG("a = %p Alen=%d b = %p Blen=%d", t->spipe[0], t->len[0], 3727 t->spipe[1], t->len[1]); 3728 3729 for (i=0; i<=Q_MAX; i++) 3730 DDOLOG("Q %d: %p", i, gcq_first(&t->q[i]), 0,0); 3731 3732 DDOLOG("TIMED: %p", GCQ_ITEM(gcq_first(&t->to), 3733 struct slhci_pipe, to), 0,0,0); 3734 3735 DDOLOG("frame=%d rootintr=%p", t->frame, t->rootintr, 0,0); 3736 3737 DDOLOG("use_polling=%d", ssc->sc_bus.use_polling, 0, 0, 0); 3738 } 3739 3740 void 3741 slhci_log_slreq(struct slhci_pipe *r) 3742 { 3743 DDOLOG("next: %p", r->q.next.sqe_next, 0,0,0); 3744 DDOLOG("xfer: %p", r->xfer, 0,0,0); 3745 DDOLOG("buffer: %p", r->buffer, 0,0,0); 3746 DDOLOG("bustime: %u", r->bustime, 0,0,0); 3747 DDOLOG("control: %#x", r->control, 0,0,0); 3748 DDOLOGFLAG8("control=", r->control, "Preamble", "Data Toggle", 3749 "SOF Sync", "ISOC", "res", "Out", "Enable", "Arm"); 3750 DDOLOG("pid: %#x", r->tregs[PID], 0,0,0); 3751 DDOLOG("dev: %u", r->tregs[DEV], 0,0,0); 3752 DDOLOG("len: %u", r->tregs[LEN], 0,0,0); 3753 3754 if (r->xfer) 3755 slhci_log_xfer(r->xfer); 3756 } 3757 #endif 3758 #endif /* SLHCI_DEBUG */ 3759 /* End debug functions. */ 3760
Indexes created Sat Sep 27 22:09:54 GMT 2025