sl811hs.c revision 1.16
1 /* $NetBSD: sl811hs.c,v 1.16 2007/11/06 21:51:07 ad 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 Mac 68k 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. Actual MP use of this driver would be unreliable on ports where 63 * splipi is above splhigh unless splipi can be safely blocked when 64 * calculating remaining bus time prior to transfers. 65 * 66 * The theory of the wait lock is that start is the only function that would 67 * be frequently called from arbitrary processors, so it should not need to 68 * wait for the rest to be completed. However, once entering the lock as much 69 * device access as possible is done, so any other CPU that tries to service 70 * an interrupt would be blocked. Ideally, the hard and soft interrupt could 71 * be assigned to the same CPU and start would normally just put work on the 72 * wait queue and generate a soft interrupt. 73 * 74 * Any use of the main lock must check the wait lock before returning. The 75 * aquisition order is main lock then wait lock, but the wait lock must be 76 * released last when clearing the wait queue. 77 */ 78 79 /* XXX TODO: 80 * copy next output packet while transfering 81 * usb suspend 82 * could keep track of known values of all buffer space? 83 * combined print/log function for errors 84 * 85 * use_polling support is untested and may not work 86 */ 87 88 #include <sys/cdefs.h> 89 __KERNEL_RCSID(0, "$NetBSD: sl811hs.c,v 1.16 2007/11/06 21:51:07 ad Exp $"); 90 91 #include <sys/cdefs.h> 92 #include <sys/param.h> 93 #include <sys/systm.h> 94 #include <sys/kernel.h> 95 #include <sys/proc.h> 96 #include <sys/device.h> 97 #include <sys/malloc.h> 98 #include <sys/queue.h> 99 #include <sys/gcq.h> 100 #include <sys/lock.h> 101 #include <sys/intr.h> 102 #include <sys/cpu.h> 103 #include <sys/bus.h> 104 105 #include <dev/usb/usb.h> 106 #include <dev/usb/usbdi.h> 107 #include <dev/usb/usbdivar.h> 108 #include <dev/usb/usb_mem.h> 109 #include <dev/usb/usbdevs.h> 110 111 #include <dev/ic/sl811hsreg.h> 112 #include <dev/ic/sl811hsvar.h> 113 114 #define Q_CB 0 /* Control/Bulk */ 115 #define Q_NEXT_CB 1 116 #define Q_MAX_XFER Q_CB 117 #define Q_CALLBACKS 2 118 #define Q_MAX Q_CALLBACKS 119 120 #define F_AREADY (0x00000001) 121 #define F_BREADY (0x00000002) 122 #define F_AINPROG (0x00000004) 123 #define F_BINPROG (0x00000008) 124 #define F_LOWSPEED (0x00000010) 125 #define F_UDISABLED (0x00000020) /* Consider disabled for USB */ 126 #define F_NODEV (0x00000040) 127 #define F_ROOTINTR (0x00000080) 128 #define F_REALPOWER (0x00000100) /* Actual power state */ 129 #define F_POWER (0x00000200) /* USB reported power state */ 130 #define F_ACTIVE (0x00000400) 131 #define F_CALLBACK (0x00000800) /* Callback scheduled */ 132 #define F_SOFCHECK1 (0x00001000) 133 #define F_SOFCHECK2 (0x00002000) 134 #define F_CRESET (0x00004000) /* Reset done not reported */ 135 #define F_CCONNECT (0x00008000) /* Connect change not reported */ 136 #define F_RESET (0x00010000) 137 #define F_ISOC_WARNED (0x00020000) 138 #define F_LSVH_WARNED (0x00040000) 139 140 #define F_DISABLED (F_NODEV|F_UDISABLED) 141 #define F_CHANGE (F_CRESET|F_CCONNECT) 142 143 #ifdef SLHCI_TRY_LSVH 144 unsigned int slhci_try_lsvh = 1; 145 #else 146 unsigned int slhci_try_lsvh = 0; 147 #endif 148 149 #define ADR 0 150 #define LEN 1 151 #define PID 2 152 #define DEV 3 153 #define STAT 2 154 #define CONT 3 155 156 #define A 0 157 #define B 1 158 159 static const uint8_t slhci_tregs[2][4] = 160 {{SL11_E0ADDR, SL11_E0LEN, SL11_E0PID, SL11_E0DEV }, 161 {SL11_E1ADDR, SL11_E1LEN, SL11_E1PID, SL11_E1DEV }}; 162 163 #define PT_ROOT_CTRL 0 164 #define PT_ROOT_INTR 1 165 #define PT_CTRL_SETUP 2 166 #define PT_CTRL_DATA 3 167 #define PT_CTRL_STATUS 4 168 #define PT_INTR 5 169 #define PT_BULK 6 170 #define PT_MAX 6 171 172 #ifdef SLHCI_DEBUG 173 #define SLHCI_MEM_ACCOUNTING 174 static const char * 175 pnames(int ptype) 176 { 177 static const char * const names[] = { "ROOT Ctrl", "ROOT Intr", 178 "Control (setup)", "Control (data)", "Control (status)", 179 "Interrupt", "Bulk", "BAD PTYPE" }; 180 181 KASSERT(sizeof(names) / sizeof(names[0]) == PT_MAX + 2); 182 if (ptype > PT_MAX) 183 ptype = PT_MAX + 1; 184 return names[ptype]; 185 } 186 #endif 187 188 #define SLHCI_XFER_TYPE(x) (((struct slhci_pipe *)((x)->pipe))->ptype) 189 190 /* Maximum allowable reserved bus time. Since intr/isoc transfers have 191 * unconditional priority, this is all that ensures control and bulk transfers 192 * get a chance. It is a single value for all frames since all transfers can 193 * use multiple consecutive frames if an error is encountered. Note that it 194 * is not really possible to fill the bus with transfers, so this value should 195 * be on the low side. Defaults to giving a warning unless SLHCI_NO_OVERTIME 196 * is defined. Full time is 12000 - END_BUSTIME. */ 197 #ifndef SLHCI_RESERVED_BUSTIME 198 #define SLHCI_RESERVED_BUSTIME 5000 199 #endif 200 201 /* Rate for "exceeds reserved bus time" warnings (default) or errors. 202 * Warnings only happen when an endpoint open causes the time to go above 203 * SLHCI_RESERVED_BUSTIME, not if it is already above. */ 204 #ifndef SLHCI_OVERTIME_WARNING_RATE 205 #define SLHCI_OVERTIME_WARNING_RATE { 60, 0 } /* 60 seconds */ 206 #endif 207 static const struct timeval reserved_warn_rate = SLHCI_OVERTIME_WARNING_RATE; 208 209 /* Rate for overflow warnings */ 210 #ifndef SLHCI_OVERFLOW_WARNING_RATE 211 #define SLHCI_OVERFLOW_WARNING_RATE { 60, 0 } /* 60 seconds */ 212 #endif 213 static const struct timeval overflow_warn_rate = SLHCI_OVERFLOW_WARNING_RATE; 214 215 /* For EOF, the spec says 42 bit times, plus (I think) a possible hub skew of 216 * 20 bit times. By default leave 66 bit times to start the transfer beyond 217 * the required time. Units are full-speed bit times (a bit over 5us per 64). 218 * Only multiples of 64 are significant. */ 219 #define SLHCI_STANDARD_END_BUSTIME 128 220 #ifndef SLHCI_EXTRA_END_BUSTIME 221 #define SLHCI_EXTRA_END_BUSTIME 0 222 #endif 223 224 #define SLHCI_END_BUSTIME (SLHCI_STANDARD_END_BUSTIME+SLHCI_EXTRA_END_BUSTIME) 225 226 /* This is an approximation of the USB worst-case timings presented on p. 54 of 227 * the USB 1.1 spec translated to full speed bit times. 228 * FS = full speed with handshake, FSII = isoc in, FSIO = isoc out, 229 * FSI = isoc (worst case), LS = low speed */ 230 #define SLHCI_FS_CONST 114 231 #define SLHCI_FSII_CONST 92 232 #define SLHCI_FSIO_CONST 80 233 #define SLHCI_FSI_CONST 92 234 #define SLHCI_LS_CONST 804 235 #ifndef SLHCI_PRECICE_BUSTIME 236 /* These values are < 3% too high (compared to the multiply and divide) for 237 * max sized packets. */ 238 #define SLHCI_FS_DATA_TIME(len) (((u_int)(len)<<3)+(len)+((len)>>1)) 239 #define SLHCI_LS_DATA_TIME(len) (((u_int)(len)<<6)+((u_int)(len)<<4)) 240 #else 241 #define SLHCI_FS_DATA_TIME(len) (56*(len)/6) 242 #define SLHCI_LS_DATA_TIME(len) (449*(len)/6) 243 #endif 244 245 /* Set SLHCI_WAIT_SIZE to the desired maximum size of single FS transfer 246 * to poll for after starting a transfer. 64 gets all full speed transfers. 247 * Note that even if 0 polling will occur if data equal or greater than the 248 * transfer size is copied to the chip while the transfer is in progress. 249 * Setting SLHCI_WAIT_TIME to -12000 will disable polling. 250 */ 251 #ifndef SLHCI_WAIT_SIZE 252 #define SLHCI_WAIT_SIZE 8 253 #endif 254 #ifndef SLHCI_WAIT_TIME 255 #define SLHCI_WAIT_TIME (SLHCI_FS_CONST + \ 256 SLHCI_FS_DATA_TIME(SLHCI_WAIT_SIZE)) 257 #endif 258 const int slhci_wait_time = SLHCI_WAIT_TIME; 259 260 /* Root hub intr endpoint */ 261 #define ROOT_INTR_ENDPT 1 262 263 #ifndef SLHCI_MAX_RETRIES 264 #define SLHCI_MAX_RETRIES 3 265 #endif 266 267 /* Check IER values for corruption after this many unrecognized interrupts. */ 268 #ifndef SLHCI_IER_CHECK_FREQUENCY 269 #ifdef SLHCI_DEBUG 270 #define SLHCI_IER_CHECK_FREQUENCY 1 271 #else 272 #define SLHCI_IER_CHECK_FREQUENCY 100 273 #endif 274 #endif 275 276 /* Note that buffer points to the start of the buffer for this transfer. */ 277 struct slhci_pipe { 278 struct usbd_pipe pipe; 279 struct usbd_xfer *xfer; /* xfer in progress */ 280 uint8_t *buffer; /* I/O buffer (if needed) */ 281 struct gcq ap; /* All pipes */ 282 struct gcq to; /* Timeout list */ 283 struct gcq xq; /* Xfer queues */ 284 unsigned int pflags; /* Pipe flags */ 285 #define PF_GONE (0x01) /* Pipe is on disabled device */ 286 #define PF_TOGGLE (0x02) /* Data toggle status */ 287 #define PF_LS (0x04) /* Pipe is low speed */ 288 #define PF_PREAMBLE (0x08) /* Needs preamble */ 289 Frame to_frame; /* Frame number for timeout */ 290 Frame frame; /* Frame number for intr xfer */ 291 Frame lastframe; /* Previous frame number for intr */ 292 uint16_t bustime; /* Worst case bus time usage */ 293 uint16_t newbustime[2]; /* new bustimes (see index below) */ 294 uint8_t tregs[4]; /* ADR, LEN, PID, DEV */ 295 uint8_t newlen[2]; /* 0 = short data, 1 = ctrl data */ 296 uint8_t newpid; /* for ctrl */ 297 uint8_t wantshort; /* last xfer must be short */ 298 uint8_t control; /* Host control register settings */ 299 uint8_t nerrs; /* Current number of errors */ 300 uint8_t ptype; /* Pipe type */ 301 }; 302 303 #if defined(MULTIPROCESSOR) || defined(LOCKDEBUG) 304 #define SLHCI_WAITLOCK 1 305 #endif 306 307 #ifdef SLHCI_PROFILE_TRANSFER 308 #if defined(__mips__) 309 /* MIPS cycle counter does not directly count cpu cycles but is a different 310 * fraction of cpu cycles depending on the cpu. */ 311 typedef u_int32_t cc_type; 312 #define CC_TYPE_FMT "%u" 313 #define slhci_cc_set(x) __asm volatile ("mfc0 %[cc], $9\n\tnop\n\tnop\n\tnop" \ 314 : [cc] "=r"(x)) 315 #elif defined(__i386__) 316 typedef u_int64_t cc_type; 317 #define CC_TYPE_FMT "%llu" 318 #define slhci_cc_set(x) __asm volatile ("rdtsc" : "=A"(x)) 319 #else 320 #error "SLHCI_PROFILE_TRANSFER not implemented on this MACHINE_ARCH (see sys/dev/ic/sl811hs.c)" 321 #endif 322 struct slhci_cc_time { 323 cc_type start; 324 cc_type stop; 325 unsigned int miscdata; 326 }; 327 #ifndef SLHCI_N_TIMES 328 #define SLHCI_N_TIMES 200 329 #endif 330 struct slhci_cc_times { 331 struct slhci_cc_time times[SLHCI_N_TIMES]; 332 int current; 333 int wraparound; 334 }; 335 336 static struct slhci_cc_times t_ab[2]; 337 static struct slhci_cc_times t_abdone; 338 static struct slhci_cc_times t_copy_to_dev; 339 static struct slhci_cc_times t_copy_from_dev; 340 static struct slhci_cc_times t_intr; 341 static struct slhci_cc_times t_lock; 342 static struct slhci_cc_times t_delay; 343 static struct slhci_cc_times t_hard_int; 344 static struct slhci_cc_times t_callback; 345 346 static inline void 347 start_cc_time(struct slhci_cc_times *times, unsigned int misc) { 348 times->times[times->current].miscdata = misc; 349 slhci_cc_set(times->times[times->current].start); 350 } 351 static inline void 352 stop_cc_time(struct slhci_cc_times *times) { 353 slhci_cc_set(times->times[times->current].stop); 354 if (++times->current >= SLHCI_N_TIMES) { 355 times->current = 0; 356 times->wraparound = 1; 357 } 358 } 359 360 void slhci_dump_cc_times(int); 361 362 void 363 slhci_dump_cc_times(int n) { 364 struct slhci_cc_times *times; 365 int i; 366 367 switch (n) { 368 default: 369 case 0: 370 printf("USBA start transfer to intr:\n"); 371 times = &t_ab[A]; 372 break; 373 case 1: 374 printf("USBB start transfer to intr:\n"); 375 times = &t_ab[B]; 376 break; 377 case 2: 378 printf("abdone:\n"); 379 times = &t_abdone; 380 break; 381 case 3: 382 printf("copy to device:\n"); 383 times = &t_copy_to_dev; 384 break; 385 case 4: 386 printf("copy from device:\n"); 387 times = &t_copy_from_dev; 388 break; 389 case 5: 390 printf("intr to intr:\n"); 391 times = &t_intr; 392 break; 393 case 6: 394 printf("lock to release:\n"); 395 times = &t_lock; 396 break; 397 case 7: 398 printf("delay time:\n"); 399 times = &t_delay; 400 break; 401 case 8: 402 printf("hard interrupt enter to exit:\n"); 403 times = &t_hard_int; 404 break; 405 case 9: 406 printf("callback:\n"); 407 times = &t_callback; 408 break; 409 } 410 411 if (times->wraparound) 412 for (i = times->current + 1; i < SLHCI_N_TIMES; i++) 413 printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT 414 " difference %8i miscdata %#x\n", 415 times->times[i].start, times->times[i].stop, 416 (int)(times->times[i].stop - 417 times->times[i].start), times->times[i].miscdata); 418 419 for (i = 0; i < times->current; i++) 420 printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT 421 " difference %8i miscdata %#x\n", times->times[i].start, 422 times->times[i].stop, (int)(times->times[i].stop - 423 times->times[i].start), times->times[i].miscdata); 424 } 425 #else 426 #define start_cc_time(x, y) 427 #define stop_cc_time(x) 428 #endif /* SLHCI_PROFILE_TRANSFER */ 429 430 typedef usbd_status (*LockCallFunc)(struct slhci_softc *, struct slhci_pipe 431 *, struct usbd_xfer *); 432 433 usbd_status slhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 434 void slhci_freem(struct usbd_bus *, usb_dma_t *); 435 struct usbd_xfer * slhci_allocx(struct usbd_bus *); 436 void slhci_freex(struct usbd_bus *, struct usbd_xfer *); 437 438 usbd_status slhci_transfer(struct usbd_xfer *); 439 usbd_status slhci_start(struct usbd_xfer *); 440 usbd_status slhci_root_start(struct usbd_xfer *); 441 usbd_status slhci_open(struct usbd_pipe *); 442 443 /* slhci_supported_rev, slhci_preinit, slhci_attach, slhci_detach, 444 * slhci_activate */ 445 446 void slhci_abort(struct usbd_xfer *); 447 void slhci_close(struct usbd_pipe *); 448 void slhci_clear_toggle(struct usbd_pipe *); 449 void slhci_poll(struct usbd_bus *); 450 void slhci_done(struct usbd_xfer *); 451 void slhci_void(void *); 452 453 /* lock entry functions */ 454 455 #ifdef SLHCI_MEM_ACCOUNTING 456 void slhci_mem_use(struct usbd_bus *, int); 457 #endif 458 459 void slhci_reset_entry(void *); 460 usbd_status slhci_lock_call(struct slhci_softc *, LockCallFunc, 461 struct slhci_pipe *, struct usbd_xfer *); 462 void slhci_start_entry(struct slhci_softc *, struct slhci_pipe *); 463 void slhci_callback_entry(void *arg); 464 void slhci_do_callback(struct slhci_softc *, struct usbd_xfer *, int *); 465 466 /* slhci_intr */ 467 468 void slhci_main(struct slhci_softc *, int *); 469 470 /* in lock functions */ 471 472 static void slhci_write(struct slhci_softc *, uint8_t, uint8_t); 473 static uint8_t slhci_read(struct slhci_softc *, uint8_t); 474 static void slhci_write_multi(struct slhci_softc *, uint8_t, uint8_t *, int); 475 static void slhci_read_multi(struct slhci_softc *, uint8_t, uint8_t *, int); 476 477 static void slhci_waitintr(struct slhci_softc *, int); 478 static int slhci_dointr(struct slhci_softc *); 479 static void slhci_abdone(struct slhci_softc *, int); 480 static void slhci_tstart(struct slhci_softc *); 481 static void slhci_dotransfer(struct slhci_softc *); 482 483 static void slhci_callback(struct slhci_softc *, int *); 484 static void slhci_enter_xfer(struct slhci_softc *, struct slhci_pipe *); 485 #ifdef SLHCI_WAITLOCK 486 static void slhci_enter_xfers(struct slhci_softc *); 487 #endif 488 static void slhci_queue_timed(struct slhci_softc *, struct slhci_pipe *); 489 static void slhci_xfer_timer(struct slhci_softc *, struct slhci_pipe *); 490 491 static void slhci_do_repeat(struct slhci_softc *, struct usbd_xfer *); 492 static void slhci_callback_schedule(struct slhci_softc *); 493 static void slhci_do_callback_schedule(struct slhci_softc *); 494 #if 0 495 void slhci_pollxfer(struct slhci_softc *, struct usbd_xfer *, int *); /* XXX */ 496 #endif 497 498 static usbd_status slhci_do_poll(struct slhci_softc *, struct slhci_pipe *, 499 struct usbd_xfer *); 500 static usbd_status slhci_lsvh_warn(struct slhci_softc *, struct slhci_pipe *, 501 struct usbd_xfer *); 502 static usbd_status slhci_isoc_warn(struct slhci_softc *, struct slhci_pipe *, 503 struct usbd_xfer *); 504 static usbd_status slhci_open_pipe(struct slhci_softc *, struct slhci_pipe *, 505 struct usbd_xfer *); 506 static usbd_status slhci_close_pipe(struct slhci_softc *, struct slhci_pipe *, 507 struct usbd_xfer *); 508 static usbd_status slhci_do_abort(struct slhci_softc *, struct slhci_pipe *, 509 struct usbd_xfer *); 510 static usbd_status slhci_do_attach(struct slhci_softc *, struct slhci_pipe *, 511 struct usbd_xfer *); 512 static usbd_status slhci_halt(struct slhci_softc *, struct slhci_pipe *, 513 struct usbd_xfer *); 514 515 static void slhci_intrchange(struct slhci_softc *, uint8_t); 516 static void slhci_drain(struct slhci_softc *); 517 static void slhci_reset(struct slhci_softc *); 518 static int slhci_reserve_bustime(struct slhci_softc *, struct slhci_pipe *, 519 int); 520 static void slhci_insert(struct slhci_softc *); 521 522 static int slhci_str(usb_string_descriptor_t *, unsigned int, const char *); 523 static usbd_status slhci_clear_feature(struct slhci_softc *, unsigned int); 524 static usbd_status slhci_set_feature(struct slhci_softc *, unsigned int); 525 static void slhci_get_status(struct slhci_softc *, usb_port_status_t *); 526 static usbd_status slhci_root(struct slhci_softc *, struct slhci_pipe *, 527 struct usbd_xfer *); 528 529 #ifdef SLHCI_DEBUG 530 void slhci_log_buffer(struct usbd_xfer *); 531 void slhci_log_req(usb_device_request_t *); 532 void slhci_log_req_hub(usb_device_request_t *); 533 void slhci_log_dumpreg(void); 534 void slhci_log_xfer(struct usbd_xfer *); 535 void slhci_log_spipe(struct slhci_pipe *); 536 void slhci_print_intr(void); 537 void slhci_log_sc(void); 538 void slhci_log_slreq(struct slhci_pipe *); 539 540 extern int usbdebug; 541 542 /* Constified so you can read the values from ddb */ 543 const int SLHCI_D_TRACE = 0x0001; 544 const int SLHCI_D_MSG = 0x0002; 545 const int SLHCI_D_XFER = 0x0004; 546 const int SLHCI_D_MEM = 0x0008; 547 const int SLHCI_D_INTR = 0x0010; 548 const int SLHCI_D_SXFER = 0x0020; 549 const int SLHCI_D_ERR = 0x0080; 550 const int SLHCI_D_BUF = 0x0100; 551 const int SLHCI_D_SOFT = 0x0200; 552 const int SLHCI_D_WAIT = 0x0400; 553 const int SLHCI_D_ROOT = 0x0800; 554 /* SOF/NAK alone normally ignored, SOF also needs D_INTR */ 555 const int SLHCI_D_SOF = 0x1000; 556 const int SLHCI_D_NAK = 0x2000; 557 558 int slhci_debug = 0x1cbc; /* 0xc8c; */ /* 0xffff; */ /* 0xd8c; */ 559 struct slhci_softc *ssc; 560 #ifdef USB_DEBUG 561 int slhci_usbdebug = -1; /* value to set usbdebug on attach, -1 = leave alone */ 562 #endif 563 564 /* Add UVMHIST history for debugging: 565 * 566 * Before uvm_hist in sys/uvm/uvm_stat.c add: 567 * UVMHIST_DECL(slhcihist); 568 * 569 * In uvm_hist add: 570 * if ((bitmask & UVMHIST_SLHCI)) 571 * hists[i++] = &slhcihist; 572 * 573 * In sys/uvm/uvm_stat.h add UVMHIST_SLHCI define. 574 */ 575 576 #include <uvm/uvm_stat.h> 577 UVMHIST_DECL(slhcihist); 578 579 #if !defined(UVMHIST) || !defined(UVMHIST_SLHCI) 580 #error "SLHCI_DEBUG requires UVMHIST (with modifications, see sys/dev/ic/sl81hs.c)" 581 #endif 582 583 #ifndef SLHCI_NHIST 584 #define SLHCI_NHIST 409600 585 #endif 586 const unsigned int SLHCI_HISTMASK = UVMHIST_SLHCI; 587 struct uvm_history_ent slhci_he[SLHCI_NHIST]; 588 589 #define SLHCI_DEXEC(x, y) do { if ((slhci_debug & SLHCI_ ## x)) { y; } \ 590 } while (/*CONSTCOND*/ 0) 591 #define DDOLOG(f, a, b, c, d) do { const char *_uvmhist_name = __func__; \ 592 u_long _uvmhist_call = 0; UVMHIST_LOG(slhcihist, f, a, b, c, d); \ 593 } while (/*CONSTCOND*/0) 594 #define DLOG(x, f, a, b, c, d) SLHCI_DEXEC(x, DDOLOG(f, a, b, c, d)) 595 /* DLOGFLAG8 is a macro not a function so that flag name expressions are not 596 * evaluated unless the flag bit is set (which could save a register read). 597 * x is debug mask, y is flag identifier, z is flag variable, 598 * a-h are flag names (must evaluate to string constants, msb first). */ 599 #define DDOLOGFLAG8(y, z, a, b, c, d, e, f, g, h) do { uint8_t _DLF8 = (z); \ 600 const char *_uvmhist_name = __func__; u_long _uvmhist_call = 0; \ 601 if (_DLF8 & 0xf0) UVMHIST_LOG(slhcihist, y " %s %s %s %s", _DLF8 & 0x80 ? \ 602 (a) : "", _DLF8 & 0x40 ? (b) : "", _DLF8 & 0x20 ? (c) : "", _DLF8 & 0x10 ? \ 603 (d) : ""); if (_DLF8 & 0x0f) UVMHIST_LOG(slhcihist, y " %s %s %s %s", \ 604 _DLF8 & 0x08 ? (e) : "", _DLF8 & 0x04 ? (f) : "", _DLF8 & 0x02 ? (g) : "", \ 605 _DLF8 & 0x01 ? (h) : ""); \ 606 } while (/*CONSTCOND*/ 0) 607 #define DLOGFLAG8(x, y, z, a, b, c, d, e, f, g, h) \ 608 SLHCI_DEXEC(x, DDOLOGFLAG8(y, z, a, b, c, d, e, f, g, h)) 609 /* DDOLOGBUF logs a buffer up to 8 bytes at a time. No identifier so that we 610 * can make it a real function. */ 611 static void 612 DDOLOGBUF(uint8_t *buf, unsigned int length) 613 { 614 int i; 615 616 for(i=0; i+8 <= length; i+=8) 617 DDOLOG("%.4x %.4x %.4x %.4x", (buf[i] << 8) | buf[i+1], 618 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 619 (buf[i+6] << 8) | buf[i+7]); 620 if (length == i+7) 621 DDOLOG("%.4x %.4x %.4x %.2x", (buf[i] << 8) | buf[i+1], 622 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 623 buf[i+6]); 624 else if (length == i+6) 625 DDOLOG("%.4x %.4x %.4x", (buf[i] << 8) | buf[i+1], 626 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 0); 627 else if (length == i+5) 628 DDOLOG("%.4x %.4x %.2x", (buf[i] << 8) | buf[i+1], 629 (buf[i+2] << 8) | buf[i+3], buf[i+4], 0); 630 else if (length == i+4) 631 DDOLOG("%.4x %.4x", (buf[i] << 8) | buf[i+1], 632 (buf[i+2] << 8) | buf[i+3], 0,0); 633 else if (length == i+3) 634 DDOLOG("%.4x %.2x", (buf[i] << 8) | buf[i+1], buf[i+2], 0,0); 635 else if (length == i+2) 636 DDOLOG("%.4x", (buf[i] << 8) | buf[i+1], 0,0,0); 637 else if (length == i+1) 638 DDOLOG("%.2x", buf[i], 0,0,0); 639 } 640 #define DLOGBUF(x, b, l) SLHCI_DEXEC(x, DDOLOGBUF(b, l)) 641 #else /* now !SLHCI_DEBUG */ 642 #define slhci_log_spipe(spipe) ((void)0) 643 #define slhci_log_xfer(xfer) ((void)0) 644 #define SLHCI_DEXEC(x, y) ((void)0) 645 #define DDOLOG(f, a, b, c, d) ((void)0) 646 #define DLOG(x, f, a, b, c, d) ((void)0) 647 #define DDOLOGFLAG8(y, z, a, b, c, d, e, f, g, h) ((void)0) 648 #define DLOGFLAG8(x, y, z, a, b, c, d, e, f, g, h) ((void)0) 649 #define DDOLOGBUF(b, l) ((void)0) 650 #define DLOGBUF(x, b, l) ((void)0) 651 #endif /* SLHCI_DEBUG */ 652 653 #ifdef LOCKDEBUG 654 #define SLHCI_MAINLOCKASSERT(sc) \ 655 simple_lock_assert_locked(&(sc)->sc_lock, "slhci") 656 #define SLHCI_LOCKASSERT(sc, main, wait) do { \ 657 simple_lock_assert_ ## main (&(sc)->sc_lock, "slhci"); \ 658 simple_lock_assert_ ## wait (&(sc)->sc_wait_lock, "slhci wait"); \ 659 } while (/*CONSTCOND*/0) 660 #else 661 #define SLHCI_MAINLOCKASSERT(sc) ((void)0) 662 #define SLHCI_LOCKASSERT(sc, main, wait) ((void)0) 663 #endif 664 665 #ifdef DIAGNOSTIC 666 #define LK_SLASSERT(exp, sc, spipe, xfer, ext) do { \ 667 if (!(exp)) { \ 668 printf("%s: assertion %s failed line %u function %s!" \ 669 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__);\ 670 DDOLOG("%s: assertion %s failed line %u function %s!" \ 671 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__);\ 672 slhci_halt(sc, spipe, xfer); \ 673 ext; \ 674 } \ 675 } while (/*CONSTCOND*/0) 676 #define UL_SLASSERT(exp, sc, spipe, xfer, ext) do { \ 677 if (!(exp)) { \ 678 printf("%s: assertion %s failed line %u function %s!" \ 679 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__); \ 680 DDOLOG("%s: assertion %s failed line %u function %s!" \ 681 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__); \ 682 slhci_lock_call(sc, &slhci_halt, spipe, xfer); \ 683 ext; \ 684 } \ 685 } while (/*CONSTCOND*/0) 686 #else 687 #define LK_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) 688 #define UL_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) 689 #endif 690 691 const struct usbd_bus_methods slhci_bus_methods = { 692 slhci_open, 693 slhci_void, 694 slhci_poll, 695 slhci_allocm, 696 slhci_freem, 697 slhci_allocx, 698 slhci_freex, 699 }; 700 701 const struct usbd_pipe_methods slhci_pipe_methods = { 702 slhci_transfer, 703 slhci_start, 704 slhci_abort, 705 slhci_close, 706 slhci_clear_toggle, 707 slhci_done, 708 }; 709 710 const struct usbd_pipe_methods slhci_root_methods = { 711 slhci_transfer, 712 slhci_root_start, 713 slhci_abort, 714 (void (*)(struct usbd_pipe *))slhci_void, /* XXX safe? */ 715 slhci_clear_toggle, 716 slhci_done, 717 }; 718 719 /* Queue inlines */ 720 721 #define GOT_FIRST_TO(tvar, t) \ 722 GCQ_GOT_FIRST_TYPED(tvar, &(t)->to, struct slhci_pipe, to) 723 724 #define FIND_TO(var, t, tvar, cond) \ 725 GCQ_FIND_TYPED(var, &(t)->to, tvar, struct slhci_pipe, to, cond) 726 727 #define FOREACH_AP(var, t, tvar) \ 728 GCQ_FOREACH_TYPED(var, &(t)->ap, tvar, struct slhci_pipe, ap) 729 730 #define GOT_FIRST_TIMED_COND(tvar, t, cond) \ 731 GCQ_GOT_FIRST_COND_TYPED(tvar, &(t)->timed, struct slhci_pipe, xq, cond) 732 733 #define GOT_FIRST_CB(tvar, t) \ 734 GCQ_GOT_FIRST_TYPED(tvar, &(t)->q[Q_CB], struct slhci_pipe, xq) 735 736 #define DEQUEUED_CALLBACK(tvar, t) \ 737 GCQ_DEQUEUED_FIRST_TYPED(tvar, &(t)->q[Q_CALLBACKS], struct slhci_pipe, xq) 738 739 #define FIND_TIMED(var, t, tvar, cond) \ 740 GCQ_FIND_TYPED(var, &(t)->timed, tvar, struct slhci_pipe, xq, cond) 741 742 #ifdef SLHCI_WAITLOCK 743 #define DEQUEUED_WAITQ(tvar, sc) \ 744 GCQ_DEQUEUED_FIRST_TYPED(tvar, &(sc)->sc_waitq, struct slhci_pipe, xq) 745 746 static inline void 747 enter_waitq(struct slhci_softc *sc, struct slhci_pipe *spipe) 748 { 749 gcq_insert_tail(&sc->sc_waitq, &spipe->xq); 750 } 751 #endif 752 753 static inline void 754 enter_q(struct slhci_transfers *t, struct slhci_pipe *spipe, int i) 755 { 756 gcq_insert_tail(&t->q[i], &spipe->xq); 757 } 758 759 static inline void 760 enter_callback(struct slhci_transfers *t, struct slhci_pipe *spipe) 761 { 762 gcq_insert_tail(&t->q[Q_CALLBACKS], &spipe->xq); 763 } 764 765 static inline void 766 enter_all_pipes(struct slhci_transfers *t, struct slhci_pipe *spipe) 767 { 768 gcq_insert_tail(&t->ap, &spipe->ap); 769 } 770 771 /* Start out of lock functions. */ 772 773 struct slhci_mem { 774 usb_dma_block_t block; 775 uint8_t data[]; 776 }; 777 778 /* The SL811HS does not do DMA as a host controller, but NetBSD's USB interface 779 * assumes DMA is used. So we fake the DMA block. */ 780 usbd_status 781 slhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 782 { 783 struct slhci_mem *mem; 784 785 mem = malloc(sizeof(struct slhci_mem) + size, M_USB, M_NOWAIT|M_ZERO); 786 787 DLOG(D_MEM, "allocm %p", mem, 0,0,0); 788 789 if (mem == NULL) 790 return USBD_NOMEM; 791 792 dma->block = &mem->block; 793 dma->block->kaddr = mem->data; 794 795 /* dma->offs = 0; */ 796 dma->block->nsegs = 1; 797 dma->block->size = size; 798 dma->block->align = size; 799 dma->block->flags |= USB_DMA_FULLBLOCK; 800 801 #ifdef SLHCI_MEM_ACCOUNTING 802 slhci_mem_use(bus, 1); 803 #endif 804 805 return USBD_NORMAL_COMPLETION; 806 } 807 808 void 809 slhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 810 { 811 DLOG(D_MEM, "freem %p", dma->block, 0,0,0); 812 813 #ifdef SLHCI_MEM_ACCOUNTING 814 slhci_mem_use(bus, -1); 815 #endif 816 817 free(dma->block, M_USB); 818 } 819 820 struct usbd_xfer * 821 slhci_allocx(struct usbd_bus *bus) 822 { 823 struct usbd_xfer *xfer; 824 825 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT|M_ZERO); 826 827 DLOG(D_MEM, "allocx %p", xfer, 0,0,0); 828 829 #ifdef SLHCI_MEM_ACCOUNTING 830 slhci_mem_use(bus, 1); 831 #endif 832 #ifdef DIAGNOSTIC 833 if (xfer != NULL) 834 xfer->busy_free = XFER_BUSY; 835 #endif 836 return xfer; 837 } 838 839 void 840 slhci_freex(struct usbd_bus *bus, struct usbd_xfer *xfer) 841 { 842 DLOG(D_MEM, "freex xfer %p spipe %p", xfer, xfer->pipe,0,0); 843 844 #ifdef SLHCI_MEM_ACCOUNTING 845 slhci_mem_use(bus, -1); 846 #endif 847 #ifdef DIAGNOSTIC 848 if (xfer->busy_free != XFER_BUSY) { 849 struct slhci_softc *sc = (struct slhci_softc *)bus; 850 printf("%s: slhci_freex: xfer=%p not busy, %#08x halted\n", 851 SC_NAME(sc), xfer, xfer->busy_free); 852 DDOLOG("%s: slhci_freex: xfer=%p not busy, %#08x halted\n", 853 SC_NAME(sc), xfer, xfer->busy_free, 0); 854 slhci_lock_call(sc, &slhci_halt, NULL, NULL); 855 return; 856 } 857 xfer->busy_free = XFER_FREE; 858 #endif 859 860 free(xfer, M_USB); 861 } 862 863 usbd_status 864 slhci_transfer(struct usbd_xfer *xfer) 865 { 866 usbd_status error; 867 int s; 868 869 DLOG(D_TRACE, "%s transfer xfer %p spipe %p ", 870 pnames(SLHCI_XFER_TYPE(xfer)), xfer, xfer->pipe,0); 871 872 /* Insert last in queue */ 873 error = usb_insert_transfer(xfer); 874 if (error) { 875 if (error != USBD_IN_PROGRESS) 876 DLOG(D_ERR, "usb_insert_transfer returns %d!", error, 877 0,0,0); 878 return error; 879 } 880 881 /* 882 * Pipe isn't running (otherwise error would be USBD_INPROG), 883 * so start it first. 884 */ 885 886 /* Start next is always done at splsoftusb, so we do this here so 887 * start functions are always called at softusb. XXX */ 888 s = splsoftusb(); 889 error = xfer->pipe->methods->start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 890 splx(s); 891 892 return error; 893 } 894 895 /* It is not safe for start to return anything other than USBD_INPROG. */ 896 usbd_status 897 slhci_start(struct usbd_xfer *xfer) 898 { 899 struct slhci_softc *sc; 900 struct usbd_pipe *pipe; 901 struct slhci_pipe *spipe; 902 struct slhci_transfers *t; 903 usb_endpoint_descriptor_t *ed; 904 unsigned int max_packet; 905 906 pipe = xfer->pipe; 907 sc = (struct slhci_softc *)pipe->device->bus; 908 spipe = (struct slhci_pipe *)xfer->pipe; 909 t = &sc->sc_transfers; 910 ed = pipe->endpoint->edesc; 911 912 max_packet = UGETW(ed->wMaxPacketSize); 913 914 DLOG(D_TRACE, "%s start xfer %p spipe %p length %d", 915 pnames(spipe->ptype), xfer, spipe, xfer->length); 916 917 /* root transfers use slhci_root_start */ 918 919 KASSERT(spipe->xfer == NULL); /* not SLASSERT */ 920 921 xfer->actlen = 0; 922 xfer->status = USBD_IN_PROGRESS; 923 924 spipe->xfer = xfer; 925 926 spipe->nerrs = 0; 927 spipe->frame = t->frame; 928 spipe->control = SL11_EPCTRL_ARM_ENABLE; 929 spipe->tregs[DEV] = pipe->device->address; 930 spipe->tregs[PID] = spipe->newpid = UE_GET_ADDR(ed->bEndpointAddress) 931 | (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? SL11_PID_IN : 932 SL11_PID_OUT); 933 spipe->newlen[0] = xfer->length % max_packet; 934 spipe->newlen[1] = min(xfer->length, max_packet); 935 936 if (spipe->ptype == PT_BULK || spipe->ptype == PT_INTR) { 937 if (spipe->pflags & PF_TOGGLE) 938 spipe->control |= SL11_EPCTRL_DATATOGGLE; 939 spipe->tregs[LEN] = spipe->newlen[1]; 940 if (spipe->tregs[LEN]) 941 spipe->buffer = KERNADDR(&xfer->dmabuf, 0); 942 else 943 spipe->buffer = NULL; 944 spipe->lastframe = t->frame; 945 #if defined(DEBUG) || defined(SLHCI_DEBUG) 946 if (__predict_false(spipe->ptype == PT_INTR && 947 xfer->length > spipe->tregs[LEN])) { 948 printf("%s: Long INTR transfer not supported!\n", 949 SC_NAME(sc)); 950 DDOLOG("%s: Long INTR transfer not supported!\n", 951 SC_NAME(sc), 0,0,0); 952 xfer->status = USBD_INVAL; 953 } 954 #endif 955 } else { 956 /* ptype may be currently set to any control transfer type. */ 957 SLHCI_DEXEC(D_TRACE, slhci_log_xfer(xfer)); 958 959 /* SETUP contains IN/OUT bits also */ 960 spipe->tregs[PID] |= SL11_PID_SETUP; 961 spipe->tregs[LEN] = 8; 962 spipe->buffer = (uint8_t *)&xfer->request; 963 DLOGBUF(D_XFER, spipe->buffer, spipe->tregs[LEN]); 964 spipe->ptype = PT_CTRL_SETUP; 965 spipe->newpid &= ~SL11_PID_BITS; 966 if (xfer->length == 0 || (xfer->request.bmRequestType & 967 UT_READ)) 968 spipe->newpid |= SL11_PID_IN; 969 else 970 spipe->newpid |= SL11_PID_OUT; 971 } 972 973 if (xfer->flags & USBD_FORCE_SHORT_XFER && spipe->tregs[LEN] == 974 max_packet && (spipe->newpid & SL11_PID_BITS) == SL11_PID_OUT) 975 spipe->wantshort = 1; 976 else 977 spipe->wantshort = 0; 978 979 /* The goal of newbustime and newlen is to avoid bustime calculation 980 * in the interrupt. The calculations are not too complex, but they 981 * complicate the conditional logic somewhat and doing them all in the 982 * same place shares constants. Index 0 is "short length" for bulk and 983 * ctrl data and 1 is "full length" for ctrl data (bulk/intr are 984 * already set to full length). */ 985 if (spipe->pflags & PF_LS) { 986 /* Setting PREAMBLE for directly connnected LS devices will 987 * lock up the chip. */ 988 if (spipe->pflags & PF_PREAMBLE) 989 spipe->control |= SL11_EPCTRL_PREAMBLE; 990 if (max_packet <= 8) { 991 spipe->bustime = SLHCI_LS_CONST + 992 SLHCI_LS_DATA_TIME(spipe->tregs[LEN]); 993 spipe->newbustime[0] = SLHCI_LS_CONST + 994 SLHCI_LS_DATA_TIME(spipe->newlen[0]); 995 spipe->newbustime[1] = SLHCI_LS_CONST + 996 SLHCI_LS_DATA_TIME(spipe->newlen[1]); 997 } else 998 xfer->status = USBD_INVAL; 999 } else { 1000 UL_SLASSERT(pipe->device->speed == USB_SPEED_FULL, sc, 1001 spipe, xfer, return USBD_IN_PROGRESS); 1002 if (max_packet <= SL11_MAX_PACKET_SIZE) { 1003 spipe->bustime = SLHCI_FS_CONST + 1004 SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); 1005 spipe->newbustime[0] = SLHCI_FS_CONST + 1006 SLHCI_FS_DATA_TIME(spipe->newlen[0]); 1007 spipe->newbustime[1] = SLHCI_FS_CONST + 1008 SLHCI_FS_DATA_TIME(spipe->newlen[1]); 1009 } else 1010 xfer->status = USBD_INVAL; 1011 } 1012 1013 /* The datasheet incorrectly indicates that DIRECTION is for 1014 * "transmit to host". It is for OUT and SETUP. The app note 1015 * describes its use correctly. */ 1016 if ((spipe->tregs[PID] & SL11_PID_BITS) != SL11_PID_IN) 1017 spipe->control |= SL11_EPCTRL_DIRECTION; 1018 1019 slhci_start_entry(sc, spipe); 1020 1021 return USBD_IN_PROGRESS; 1022 } 1023 1024 usbd_status 1025 slhci_root_start(struct usbd_xfer *xfer) 1026 { 1027 struct slhci_softc *sc; 1028 struct slhci_pipe *spipe; 1029 1030 spipe = (struct slhci_pipe *)xfer->pipe; 1031 sc = (struct slhci_softc *)xfer->pipe->device->bus; 1032 1033 return slhci_lock_call(sc, &slhci_root, spipe, xfer); 1034 } 1035 1036 usbd_status 1037 slhci_open(struct usbd_pipe *pipe) 1038 { 1039 struct usbd_device *dev; 1040 struct slhci_softc *sc; 1041 struct slhci_pipe *spipe; 1042 usb_endpoint_descriptor_t *ed; 1043 struct slhci_transfers *t; 1044 unsigned int max_packet, pmaxpkt; 1045 1046 dev = pipe->device; 1047 sc = (struct slhci_softc *)dev->bus; 1048 spipe = (struct slhci_pipe *)pipe; 1049 ed = pipe->endpoint->edesc; 1050 t = &sc->sc_transfers; 1051 1052 DLOG(D_TRACE, "slhci_open(addr=%d,ep=%d,rootaddr=%d)", 1053 dev->address, ed->bEndpointAddress, t->rootaddr, 0); 1054 1055 spipe->pflags = 0; 1056 spipe->frame = 0; 1057 spipe->lastframe = 0; 1058 spipe->xfer = NULL; 1059 spipe->buffer = NULL; 1060 1061 gcq_init(&spipe->ap); 1062 gcq_init(&spipe->to); 1063 gcq_init(&spipe->xq); 1064 1065 /* The endpoint descriptor will not have been set up yet in the case 1066 * of the standard control pipe, so the max packet checks are also 1067 * necessary in start. */ 1068 1069 max_packet = UGETW(ed->wMaxPacketSize); 1070 1071 if (dev->speed == USB_SPEED_LOW) { 1072 spipe->pflags |= PF_LS; 1073 if (dev->myhub->address != t->rootaddr) { 1074 spipe->pflags |= PF_PREAMBLE; 1075 if (!slhci_try_lsvh) 1076 return slhci_lock_call(sc, &slhci_lsvh_warn, 1077 spipe, NULL); 1078 } 1079 pmaxpkt = 8; 1080 } else 1081 pmaxpkt = SL11_MAX_PACKET_SIZE; 1082 1083 if (max_packet > pmaxpkt) { 1084 DLOG(D_ERR, "packet too large! size %d spipe %p", max_packet, 1085 spipe, 0,0); 1086 return USBD_INVAL; 1087 } 1088 1089 if (dev->address == t->rootaddr) { 1090 switch (ed->bEndpointAddress) { 1091 case USB_CONTROL_ENDPOINT: 1092 spipe->ptype = PT_ROOT_CTRL; 1093 pipe->interval = 0; 1094 break; 1095 case UE_DIR_IN | ROOT_INTR_ENDPT: 1096 spipe->ptype = PT_ROOT_INTR; 1097 pipe->interval = 1; 1098 break; 1099 default: 1100 printf("%s: Invalid root endpoint!\n", SC_NAME(sc)); 1101 DDOLOG("%s: Invalid root endpoint!\n", SC_NAME(sc), 1102 0,0,0); 1103 return USBD_INVAL; 1104 } 1105 pipe->methods = __UNCONST(&slhci_root_methods); 1106 return USBD_NORMAL_COMPLETION; 1107 } else { 1108 switch (ed->bmAttributes & UE_XFERTYPE) { 1109 case UE_CONTROL: 1110 spipe->ptype = PT_CTRL_SETUP; 1111 pipe->interval = 0; 1112 break; 1113 case UE_INTERRUPT: 1114 spipe->ptype = PT_INTR; 1115 if (pipe->interval == USBD_DEFAULT_INTERVAL) 1116 pipe->interval = ed->bInterval; 1117 break; 1118 case UE_ISOCHRONOUS: 1119 return slhci_lock_call(sc, &slhci_isoc_warn, spipe, 1120 NULL); 1121 case UE_BULK: 1122 spipe->ptype = PT_BULK; 1123 pipe->interval = 0; 1124 break; 1125 } 1126 1127 DLOG(D_MSG, "open pipe %s interval %d", pnames(spipe->ptype), 1128 pipe->interval, 0,0); 1129 1130 pipe->methods = __UNCONST(&slhci_pipe_methods); 1131 1132 return slhci_lock_call(sc, &slhci_open_pipe, spipe, NULL); 1133 } 1134 } 1135 1136 int 1137 slhci_supported_rev(uint8_t rev) 1138 { 1139 return (rev >= SLTYPE_SL811HS_R12 && rev <= SLTYPE_SL811HS_R15); 1140 } 1141 1142 /* Must be called before the ISR is registered. Interrupts can be shared so 1143 * slhci_intr could be called as soon as the ISR is registered. 1144 * Note max_current argument is actual current, but stored as current/2 */ 1145 void 1146 slhci_preinit(struct slhci_softc *sc, PowerFunc pow, bus_space_tag_t iot, 1147 bus_space_handle_t ioh, uint16_t max_current, uint8_t stride) 1148 { 1149 struct slhci_transfers *t; 1150 int i; 1151 1152 t = &sc->sc_transfers; 1153 1154 #ifdef SLHCI_DEBUG 1155 UVMHIST_INIT_STATIC(slhcihist, slhci_he); 1156 #endif 1157 simple_lock_init(&sc->sc_lock); 1158 #ifdef SLHCI_WAITLOCK 1159 simple_lock_init(&sc->sc_wait_lock); 1160 #endif 1161 /* sc->sc_ier = 0; */ 1162 /* t->rootintr = NULL; */ 1163 t->flags = F_NODEV|F_UDISABLED; 1164 t->pend = INT_MAX; 1165 KASSERT(slhci_wait_time != INT_MAX); 1166 t->len[0] = t->len[1] = -1; 1167 if (max_current > 500) 1168 max_current = 500; 1169 t->max_current = (uint8_t)(max_current / 2); 1170 sc->sc_enable_power = pow; 1171 sc->sc_iot = iot; 1172 sc->sc_ioh = ioh; 1173 sc->sc_stride = stride; 1174 1175 KASSERT(Q_MAX+1 == sizeof(t->q) / sizeof(t->q[0])); 1176 1177 for (i = 0; i <= Q_MAX; i++) 1178 gcq_init_head(&t->q[i]); 1179 gcq_init_head(&t->timed); 1180 gcq_init_head(&t->to); 1181 gcq_init_head(&t->ap); 1182 #ifdef SLHCI_WAITLOCK 1183 gcq_init_head(&sc->sc_waitq); 1184 #endif 1185 } 1186 1187 int 1188 slhci_attach(struct slhci_softc *sc) 1189 { 1190 if (slhci_lock_call(sc, &slhci_do_attach, NULL, NULL) != 1191 USBD_NORMAL_COMPLETION) 1192 return -1; 1193 1194 /* Attach usb and uhub. */ 1195 sc->sc_child = config_found(SC_DEV(sc), &sc->sc_bus, usbctlprint); 1196 1197 if (!sc->sc_child) 1198 return -1; 1199 else 1200 return 0; 1201 } 1202 1203 int 1204 slhci_detach(struct slhci_softc *sc, int flags) 1205 { 1206 struct slhci_transfers *t; 1207 int ret; 1208 1209 t = &sc->sc_transfers; 1210 1211 /* By this point bus access is no longer allowed. */ 1212 1213 KASSERT(!(t->flags & F_ACTIVE)); 1214 1215 /* To be MPSAFE is not sufficient to cancel callouts and soft 1216 * interrupts and assume they are dead since the code could already be 1217 * running or about to run. Wait until they are known to be done. */ 1218 while (t->flags & (F_RESET|F_CALLBACK)) 1219 tsleep(&sc, PPAUSE, "slhci_detach", hz); 1220 1221 softint_disestablish(sc->sc_cb_softintr); 1222 1223 ret = 0; 1224 1225 if (sc->sc_child) 1226 ret = config_detach(sc->sc_child, flags); 1227 1228 #ifdef SLHCI_MEM_ACCOUNTING 1229 if (sc->sc_mem_use) { 1230 printf("%s: Memory still in use after detach! mem_use (count)" 1231 " = %d\n", SC_NAME(sc), sc->sc_mem_use); 1232 DDOLOG("%s: Memory still in use after detach! mem_use (count)" 1233 " = %d\n", SC_NAME(sc), sc->sc_mem_use, 0,0); 1234 } 1235 #endif 1236 1237 return ret; 1238 } 1239 1240 int 1241 slhci_activate(struct device *self, enum devact act) 1242 { 1243 struct slhci_softc *sc; 1244 1245 sc = (void *)self; 1246 1247 if (act != DVACT_DEACTIVATE) 1248 return EOPNOTSUPP; 1249 1250 slhci_lock_call(sc, &slhci_halt, NULL, NULL); 1251 1252 if (sc->sc_child) 1253 return config_deactivate(sc->sc_child); 1254 else 1255 return 0; 1256 } 1257 1258 void 1259 slhci_abort(struct usbd_xfer *xfer) 1260 { 1261 struct slhci_softc *sc; 1262 struct slhci_pipe *spipe; 1263 1264 spipe = (struct slhci_pipe *)xfer->pipe; 1265 1266 if (spipe == NULL) 1267 goto callback; 1268 1269 sc = (struct slhci_softc *)spipe->pipe.device->bus; 1270 1271 DLOG(D_TRACE, "%s abort xfer %p spipe %p spipe->xfer %p", 1272 pnames(spipe->ptype), xfer, spipe, spipe->xfer); 1273 1274 slhci_lock_call(sc, &slhci_do_abort, spipe, xfer); 1275 1276 callback: 1277 xfer->status = USBD_CANCELLED; 1278 /* Abort happens at splsoftusb. */ 1279 usb_transfer_complete(xfer); 1280 } 1281 1282 void 1283 slhci_close(struct usbd_pipe *pipe) 1284 { 1285 struct slhci_softc *sc; 1286 struct slhci_pipe *spipe; 1287 struct slhci_transfers *t; 1288 1289 sc = (struct slhci_softc *)pipe->device->bus; 1290 spipe = (struct slhci_pipe *)pipe; 1291 t = &sc->sc_transfers; 1292 1293 DLOG(D_TRACE, "%s close spipe %p spipe->xfer %p", 1294 pnames(spipe->ptype), spipe, spipe->xfer, 0); 1295 1296 slhci_lock_call(sc, &slhci_close_pipe, spipe, NULL); 1297 } 1298 1299 void 1300 slhci_clear_toggle(struct usbd_pipe *pipe) 1301 { 1302 struct slhci_pipe *spipe; 1303 1304 spipe = (struct slhci_pipe *)pipe; 1305 1306 DLOG(D_TRACE, "%s toggle spipe %p", pnames(spipe->ptype), 1307 spipe,0,0); 1308 1309 spipe->pflags &= ~PF_TOGGLE; 1310 1311 #ifdef DIAGNOSTIC 1312 if (spipe->xfer != NULL) { 1313 struct slhci_softc *sc = (struct slhci_softc 1314 *)pipe->device->bus; 1315 1316 printf("%s: Clear toggle on transfer in progress! halted\n", 1317 SC_NAME(sc)); 1318 DDOLOG("%s: Clear toggle on transfer in progress! halted\n", 1319 SC_NAME(sc), 0,0,0); 1320 slhci_halt(sc, NULL, NULL); 1321 } 1322 #endif 1323 } 1324 1325 void 1326 slhci_poll(struct usbd_bus *bus) /* XXX necessary? */ 1327 { 1328 struct slhci_softc *sc; 1329 1330 sc = (struct slhci_softc *)bus; 1331 1332 DLOG(D_TRACE, "slhci_poll", 0,0,0,0); 1333 1334 slhci_lock_call(sc, &slhci_do_poll, NULL, NULL); 1335 } 1336 1337 void 1338 slhci_done(struct usbd_xfer *xfer) 1339 { 1340 /* xfer may not be valid here */ 1341 } 1342 1343 void 1344 slhci_void(void *v) {} 1345 1346 /* End out of lock functions. Start lock entry functions. */ 1347 1348 #ifdef SLHCI_MEM_ACCOUNTING 1349 void 1350 slhci_mem_use(struct usbd_bus *bus, int val) 1351 { 1352 struct slhci_softc *sc = (struct slhci_softc *)bus; 1353 int s; 1354 1355 s = splhardusb(); 1356 simple_lock(&sc->sc_wait_lock); 1357 sc->sc_mem_use += val; 1358 simple_unlock(&sc->sc_wait_lock); 1359 splx(s); 1360 } 1361 #endif 1362 1363 void 1364 slhci_reset_entry(void *arg) 1365 { 1366 struct slhci_softc *sc; 1367 int s; 1368 1369 sc = (struct slhci_softc *)arg; 1370 1371 s = splhardusb(); 1372 simple_lock(&sc->sc_lock); 1373 slhci_reset(sc); 1374 /* We cannot call the calback directly since we could then be reset 1375 * again before finishing and need the callout delay for timing. 1376 * Scheduling the callout again before we exit would defeat the reap 1377 * mechanism since we could be unlocked while the reset flag is not 1378 * set. The callback code will check the wait queue. */ 1379 slhci_callback_schedule(sc); 1380 simple_unlock(&sc->sc_lock); 1381 splx(s); 1382 } 1383 1384 usbd_status 1385 slhci_lock_call(struct slhci_softc *sc, LockCallFunc lcf, struct slhci_pipe 1386 *spipe, struct usbd_xfer *xfer) 1387 { 1388 usbd_status ret; 1389 int x, s; 1390 1391 x = splsoftusb(); 1392 s = splhardusb(); 1393 simple_lock(&sc->sc_lock); 1394 ret = (*lcf)(sc, spipe, xfer); 1395 slhci_main(sc, &s); 1396 splx(s); 1397 splx(x); 1398 1399 return ret; 1400 } 1401 1402 void 1403 slhci_start_entry(struct slhci_softc *sc, struct slhci_pipe *spipe) 1404 { 1405 struct slhci_transfers *t; 1406 int s; 1407 1408 t = &sc->sc_transfers; 1409 1410 s = splhardusb(); 1411 #ifdef SLHCI_WAITLOCK 1412 if (simple_lock_try(&sc->sc_lock)) 1413 #else 1414 simple_lock(&sc->sc_lock); 1415 #endif 1416 { 1417 slhci_enter_xfer(sc, spipe); 1418 slhci_dotransfer(sc); 1419 slhci_main(sc, &s); 1420 #ifdef SLHCI_WAITLOCK 1421 } else { 1422 simple_lock(&sc->sc_wait_lock); 1423 enter_waitq(sc, spipe); 1424 simple_unlock(&sc->sc_wait_lock); 1425 #endif 1426 } 1427 splx(s); 1428 } 1429 1430 void 1431 slhci_callback_entry(void *arg) 1432 { 1433 struct slhci_softc *sc; 1434 struct slhci_transfers *t; 1435 int s, x; 1436 1437 1438 sc = (struct slhci_softc *)arg; 1439 1440 x = splsoftusb(); 1441 s = splhardusb(); 1442 simple_lock(&sc->sc_lock); 1443 t = &sc->sc_transfers; 1444 DLOG(D_SOFT, "callback_entry flags %#x", t->flags, 0,0,0); 1445 1446 #ifdef SLHCI_WAITLOCK 1447 repeat: 1448 #endif 1449 slhci_callback(sc, &s); 1450 1451 #ifdef SLHCI_WAITLOCK 1452 simple_lock(&sc->sc_wait_lock); 1453 if (!gcq_empty(&sc->sc_waitq)) { 1454 slhci_enter_xfers(sc); 1455 simple_unlock(&sc->sc_wait_lock); 1456 slhci_dotransfer(sc); 1457 slhci_waitintr(sc, 0); 1458 goto repeat; 1459 } 1460 1461 t->flags &= ~F_CALLBACK; 1462 simple_unlock(&sc->sc_lock); 1463 simple_unlock(&sc->sc_wait_lock); 1464 #else 1465 t->flags &= ~F_CALLBACK; 1466 simple_unlock(&sc->sc_lock); 1467 #endif 1468 splx(s); 1469 splx(x); 1470 } 1471 1472 void 1473 slhci_do_callback(struct slhci_softc *sc, struct usbd_xfer *xfer, int *s) 1474 { 1475 SLHCI_LOCKASSERT(sc, locked, unlocked); 1476 1477 int repeat; 1478 1479 sc->sc_bus.intr_context++; 1480 start_cc_time(&t_callback, (u_int)xfer); 1481 simple_unlock(&sc->sc_lock); 1482 splx(*s); 1483 1484 repeat = xfer->pipe->repeat; 1485 1486 usb_transfer_complete(xfer); 1487 1488 *s = splhardusb(); 1489 simple_lock(&sc->sc_lock); 1490 stop_cc_time(&t_callback); 1491 sc->sc_bus.intr_context--; 1492 1493 if (repeat && !sc->sc_bus.use_polling) 1494 slhci_do_repeat(sc, xfer); 1495 } 1496 1497 int 1498 slhci_intr(void *arg) 1499 { 1500 struct slhci_softc *sc; 1501 int ret; 1502 1503 sc = (struct slhci_softc *)arg; 1504 1505 start_cc_time(&t_hard_int, (unsigned int)arg); 1506 simple_lock(&sc->sc_lock); 1507 1508 ret = slhci_dointr(sc); 1509 slhci_main(sc, NULL); 1510 1511 stop_cc_time(&t_hard_int); 1512 return ret; 1513 } 1514 1515 /* called with main lock only held, returns with locks released. */ 1516 void 1517 slhci_main(struct slhci_softc *sc, int *s) 1518 { 1519 struct slhci_transfers *t; 1520 1521 t = &sc->sc_transfers; 1522 1523 SLHCI_LOCKASSERT(sc, locked, unlocked); 1524 1525 #ifdef SLHCI_WAITLOCK 1526 waitcheck: 1527 #endif 1528 slhci_waitintr(sc, slhci_wait_time); 1529 1530 1531 /* 1532 * XXX Directly calling the callback anytime s != NULL 1533 * causes panic:sbdrop with aue (simultaneously using umass). 1534 * Doing that affects process accounting, but is supposed to work as 1535 * far as I can tell. 1536 * 1537 * The direct call is needed in the use_polling and disabled cases 1538 * since the soft interrupt is not available. In the disabled case, 1539 * this code can be reached from the usb detach, after the reaping of 1540 * the soft interrupt. That test could be !F_ACTIVE (in which case 1541 * s != NULL could be an assertion), but there is no reason not to 1542 * make the callbacks directly in the other DISABLED cases. 1543 */ 1544 if ((t->flags & F_ROOTINTR) || !gcq_empty(&t->q[Q_CALLBACKS])) { 1545 if (__predict_false(sc->sc_bus.use_polling || t->flags & 1546 F_DISABLED) && s != NULL) 1547 slhci_callback(sc, s); 1548 else 1549 slhci_callback_schedule(sc); 1550 } 1551 1552 #ifdef SLHCI_WAITLOCK 1553 simple_lock(&sc->sc_wait_lock); 1554 1555 if (!gcq_empty(&sc->sc_waitq)) { 1556 slhci_enter_xfers(sc); 1557 simple_unlock(&sc->sc_wait_lock); 1558 slhci_dotransfer(sc); 1559 goto waitcheck; 1560 } 1561 1562 simple_unlock(&sc->sc_lock); 1563 simple_unlock(&sc->sc_wait_lock); 1564 #else 1565 simple_unlock(&sc->sc_lock); 1566 #endif 1567 } 1568 1569 /* End lock entry functions. Start in lock function. */ 1570 1571 /* Register read/write routines and barriers. */ 1572 #ifdef SLHCI_BUS_SPACE_BARRIERS 1573 #define BSB(a, b, c, d, e) bus_space_barrier(a, b, c, d, BUS_SPACE_BARRIER_ # e) 1574 #define BSB_SYNC(a, b, c, d) bus_space_barrier(a, b, c, d, BUS_SPACE_BARRIER_SYNC) 1575 #else /* now !SLHCI_BUS_SPACE_BARRIERS */ 1576 #define BSB(a, b, c, d, e) 1577 #define BSB_SYNC(a, b, c, d) 1578 #endif /* SLHCI_BUS_SPACE_BARRIERS */ 1579 1580 static void 1581 slhci_write(struct slhci_softc *sc, uint8_t addr, uint8_t data) 1582 { 1583 bus_size_t paddr, pdata, pst, psz; 1584 bus_space_tag_t iot; 1585 bus_space_handle_t ioh; 1586 1587 paddr = pst = 0; 1588 pdata = sc->sc_stride; 1589 psz = pdata * 2; 1590 iot = sc->sc_iot; 1591 ioh = sc->sc_ioh; 1592 1593 bus_space_write_1(iot, ioh, paddr, addr); 1594 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1595 bus_space_write_1(iot, ioh, pdata, data); 1596 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1597 } 1598 1599 static uint8_t 1600 slhci_read(struct slhci_softc *sc, uint8_t addr) 1601 { 1602 bus_size_t paddr, pdata, pst, psz; 1603 bus_space_tag_t iot; 1604 bus_space_handle_t ioh; 1605 uint8_t data; 1606 1607 paddr = pst = 0; 1608 pdata = sc->sc_stride; 1609 psz = pdata * 2; 1610 iot = sc->sc_iot; 1611 ioh = sc->sc_ioh; 1612 1613 bus_space_write_1(iot, ioh, paddr, addr); 1614 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1615 data = bus_space_read_1(iot, ioh, pdata); 1616 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1617 return data; 1618 } 1619 1620 #if 0 /* auto-increment mode broken, see errata doc */ 1621 static void 1622 slhci_write_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1623 { 1624 bus_size_t paddr, pdata, pst, psz; 1625 bus_space_tag_t iot; 1626 bus_space_handle_t ioh; 1627 1628 paddr = pst = 0; 1629 pdata = sc->sc_stride; 1630 psz = pdata * 2; 1631 iot = sc->sc_iot; 1632 ioh = sc->sc_ioh; 1633 1634 bus_space_write_1(iot, ioh, paddr, addr); 1635 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1636 bus_space_write_multi_1(iot, ioh, pdata, buf, l); 1637 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1638 } 1639 1640 static void 1641 slhci_read_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1642 { 1643 bus_size_t paddr, pdata, pst, psz; 1644 bus_space_tag_t iot; 1645 bus_space_handle_t ioh; 1646 1647 paddr = pst = 0; 1648 pdata = sc->sc_stride; 1649 psz = pdata * 2; 1650 iot = sc->sc_iot; 1651 ioh = sc->sc_ioh; 1652 1653 bus_space_write_1(iot, ioh, paddr, addr); 1654 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1655 bus_space_read_multi_1(iot, ioh, pdata, buf, l); 1656 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1657 } 1658 #else 1659 static void 1660 slhci_write_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1661 { 1662 #if 1 1663 for (; l; addr++, buf++, l--) 1664 slhci_write(sc, addr, *buf); 1665 #else 1666 bus_size_t paddr, pdata, pst, psz; 1667 bus_space_tag_t iot; 1668 bus_space_handle_t ioh; 1669 1670 paddr = pst = 0; 1671 pdata = sc->sc_stride; 1672 psz = pdata * 2; 1673 iot = sc->sc_iot; 1674 ioh = sc->sc_ioh; 1675 1676 for (; l; addr++, buf++, l--) { 1677 bus_space_write_1(iot, ioh, paddr, addr); 1678 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1679 bus_space_write_1(iot, ioh, pdata, *buf); 1680 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1681 } 1682 #endif 1683 } 1684 1685 static void 1686 slhci_read_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1687 { 1688 #if 1 1689 for (; l; addr++, buf++, l--) 1690 *buf = slhci_read(sc, addr); 1691 #else 1692 bus_size_t paddr, pdata, pst, psz; 1693 bus_space_tag_t iot; 1694 bus_space_handle_t ioh; 1695 1696 paddr = pst = 0; 1697 pdata = sc->sc_stride; 1698 psz = pdata * 2; 1699 iot = sc->sc_iot; 1700 ioh = sc->sc_ioh; 1701 1702 for (; l; addr++, buf++, l--) { 1703 bus_space_write_1(iot, ioh, paddr, addr); 1704 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1705 *buf = bus_space_read_1(iot, ioh, pdata); 1706 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1707 } 1708 #endif 1709 } 1710 #endif 1711 1712 /* After calling waitintr it is necessary to either call slhci_callback or 1713 * schedule the callback if necessary. The callback cannot be called directly 1714 * from the hard interrupt since it interrupts at a high IPL and callbacks 1715 * can do copyout and such. */ 1716 static void 1717 slhci_waitintr(struct slhci_softc *sc, int wait_time) 1718 { 1719 struct slhci_transfers *t; 1720 1721 t = &sc->sc_transfers; 1722 1723 SLHCI_LOCKASSERT(sc, locked, unlocked); 1724 1725 if (__predict_false(sc->sc_bus.use_polling)) 1726 wait_time = 12000; 1727 1728 while (t->pend <= wait_time) { 1729 DLOG(D_WAIT, "waiting... frame %d pend %d flags %#x", 1730 t->frame, t->pend, t->flags, 0); 1731 LK_SLASSERT(t->flags & F_ACTIVE, sc, NULL, NULL, return); 1732 LK_SLASSERT(t->flags & (F_AINPROG|F_BINPROG), sc, NULL, NULL, 1733 return); 1734 slhci_dointr(sc); 1735 } 1736 } 1737 1738 static int 1739 slhci_dointr(struct slhci_softc *sc) 1740 { 1741 struct slhci_transfers *t; 1742 struct slhci_pipe *tosp; 1743 uint8_t r; 1744 1745 t = &sc->sc_transfers; 1746 1747 SLHCI_LOCKASSERT(sc, locked, unlocked); 1748 1749 if (sc->sc_ier == 0) 1750 return 0; 1751 1752 r = slhci_read(sc, SL11_ISR); 1753 1754 #ifdef SLHCI_DEBUG 1755 if (slhci_debug & SLHCI_D_INTR && r & sc->sc_ier && 1756 ((r & ~(SL11_ISR_SOF|SL11_ISR_DATA)) || slhci_debug & 1757 SLHCI_D_SOF)) { 1758 uint8_t e, f; 1759 1760 e = slhci_read(sc, SL11_IER); 1761 f = slhci_read(sc, SL11_CTRL); 1762 DDOLOG("Flags=%#x IER=%#x ISR=%#x", t->flags, e, r, 0); 1763 DDOLOGFLAG8("Status=", r, "D+", (f & SL11_CTRL_SUSPEND) ? 1764 "RESUME" : "NODEV", "INSERT", "SOF", "res", "BABBLE", 1765 "USBB", "USBA"); 1766 } 1767 #endif 1768 1769 /* check IER for corruption occasionally. Assume that the above 1770 * sc_ier == 0 case works correctly. */ 1771 if (__predict_false(sc->sc_ier_check++ > SLHCI_IER_CHECK_FREQUENCY)) { 1772 sc->sc_ier_check = 0; 1773 if (sc->sc_ier != slhci_read(sc, SL11_IER)) { 1774 printf("%s: IER value corrupted! halted\n", 1775 SC_NAME(sc)); 1776 DDOLOG("%s: IER value corrupted! halted\n", 1777 SC_NAME(sc), 0,0,0); 1778 slhci_halt(sc, NULL, NULL); 1779 return 1; 1780 } 1781 } 1782 1783 r &= sc->sc_ier; 1784 1785 if (r == 0) 1786 return 0; 1787 1788 sc->sc_ier_check = 0; 1789 1790 slhci_write(sc, SL11_ISR, r); 1791 BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); 1792 1793 1794 /* If we have an insertion event we do not care about anything else. */ 1795 if (__predict_false(r & SL11_ISR_INSERT)) { 1796 slhci_insert(sc); 1797 return 1; 1798 } 1799 1800 stop_cc_time(&t_intr); 1801 start_cc_time(&t_intr, r); 1802 1803 if (r & SL11_ISR_SOF) { 1804 t->frame++; 1805 1806 gcq_merge_tail(&t->q[Q_CB], &t->q[Q_NEXT_CB]); 1807 1808 /* SOFCHECK flags are cleared in tstart. Two flags are needed 1809 * since the first SOF interrupt processed after the transfer 1810 * is started might have been generated before the transfer 1811 * was started. */ 1812 if (__predict_false(t->flags & F_SOFCHECK2 && t->flags & 1813 (F_AINPROG|F_BINPROG))) { 1814 printf("%s: Missed transfer completion. halted\n", 1815 SC_NAME(sc)); 1816 DDOLOG("%s: Missed transfer completion. halted\n", 1817 SC_NAME(sc), 0,0,0); 1818 slhci_halt(sc, NULL, NULL); 1819 return 1; 1820 } else if (t->flags & F_SOFCHECK1) { 1821 t->flags |= F_SOFCHECK2; 1822 } else 1823 t->flags |= F_SOFCHECK1; 1824 1825 if (t->flags & F_CHANGE) 1826 t->flags |= F_ROOTINTR; 1827 1828 while (__predict_true(GOT_FIRST_TO(tosp, t)) && 1829 __predict_false(tosp->to_frame <= t->frame)) { 1830 tosp->xfer->status = USBD_TIMEOUT; 1831 slhci_do_abort(sc, tosp, tosp->xfer); 1832 enter_callback(t, tosp); 1833 } 1834 1835 /* Start any waiting transfers right away. If none, we will 1836 * start any new transfers later. */ 1837 slhci_tstart(sc); 1838 } 1839 1840 if (r & (SL11_ISR_USBA|SL11_ISR_USBB)) { 1841 int ab; 1842 1843 if ((r & (SL11_ISR_USBA|SL11_ISR_USBB)) == 1844 (SL11_ISR_USBA|SL11_ISR_USBB)) { 1845 if (!(t->flags & (F_AINPROG|F_BINPROG))) 1846 return 1; /* presume card pulled */ 1847 1848 LK_SLASSERT((t->flags & (F_AINPROG|F_BINPROG)) != 1849 (F_AINPROG|F_BINPROG), sc, NULL, NULL, return 1); 1850 1851 /* This should never happen (unless card removal just 1852 * occurred) but appeared frequently when both 1853 * transfers were started at the same time and was 1854 * accompanied by data corruption. It still happens 1855 * at times. I have not seen data correption except 1856 * when the STATUS bit gets set, which now causes the 1857 * driver to halt, however this should still not 1858 * happen so the warning is kept. See comment in 1859 * abdone, below. 1860 */ 1861 printf("%s: Transfer reported done but not started! " 1862 "Verify data integrity if not detaching. " 1863 " flags %#x r %x\n", SC_NAME(sc), t->flags, r); 1864 1865 if (!(t->flags & F_AINPROG)) 1866 r &= ~SL11_ISR_USBA; 1867 else 1868 r &= ~SL11_ISR_USBB; 1869 } 1870 t->pend = INT_MAX; 1871 1872 if (r & SL11_ISR_USBA) 1873 ab = A; 1874 else 1875 ab = B; 1876 1877 /* This happens when a low speed device is attached to 1878 * a hub with chip rev 1.5. SOF stops, but a few transfers 1879 * still work before causing this error. 1880 */ 1881 if (!(t->flags & (ab ? F_BINPROG : F_AINPROG))) { 1882 printf("%s: %s done but not in progress! halted\n", 1883 SC_NAME(sc), ab ? "B" : "A"); 1884 DDOLOG("%s: %s done but not in progress! halted\n", 1885 SC_NAME(sc), ab ? "B" : "A", 0,0); 1886 slhci_halt(sc, NULL, NULL); 1887 return 1; 1888 } 1889 1890 t->flags &= ~(ab ? F_BINPROG : F_AINPROG); 1891 slhci_tstart(sc); 1892 stop_cc_time(&t_ab[ab]); 1893 start_cc_time(&t_abdone, t->flags); 1894 slhci_abdone(sc, ab); 1895 stop_cc_time(&t_abdone); 1896 } 1897 1898 slhci_dotransfer(sc); 1899 1900 return 1; 1901 } 1902 1903 static void 1904 slhci_abdone(struct slhci_softc *sc, int ab) 1905 { 1906 struct slhci_transfers *t; 1907 struct slhci_pipe *spipe; 1908 struct usbd_xfer *xfer; 1909 uint8_t status, buf_start; 1910 uint8_t *target_buf; 1911 unsigned int actlen; 1912 int head; 1913 1914 t = &sc->sc_transfers; 1915 1916 SLHCI_LOCKASSERT(sc, locked, unlocked); 1917 1918 DLOG(D_TRACE, "ABDONE flags %#x", t->flags, 0,0,0); 1919 1920 DLOG(D_MSG, "DONE %s spipe %p len %d xfer %p", ab ? "B" : "A", 1921 t->spipe[ab], t->len[ab], t->spipe[ab] ? 1922 t->spipe[ab]->xfer : NULL); 1923 1924 spipe = t->spipe[ab]; 1925 1926 /* skip this one if aborted; do not call return from the rest of the 1927 * function unless halting, else t->len will not be cleared. */ 1928 if (spipe == NULL) 1929 goto done; 1930 1931 t->spipe[ab] = NULL; 1932 1933 xfer = spipe->xfer; 1934 1935 gcq_remove(&spipe->to); 1936 1937 LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); 1938 1939 status = slhci_read(sc, slhci_tregs[ab][STAT]); 1940 1941 /* 1942 * I saw no status or remaining length greater than the requested 1943 * length in early driver versions in circumstances I assumed caused 1944 * excess power draw. I am no longer able to reproduce this when 1945 * causing excess power draw circumstances. 1946 * 1947 * Disabling a power check and attaching aue to a keyboard and hub 1948 * that is directly attached (to CFU1U, 100mA max, aue 160mA, keyboard 1949 * 98mA) sometimes works and sometimes fails to configure. After 1950 * removing the aue and attaching a self-powered umass dvd reader 1951 * (unknown if it draws power from the host also) soon a single Error 1952 * status occurs then only timeouts. The controller soon halts freeing 1953 * memory due to being ONQU instead of BUSY. This may be the same 1954 * basic sequence that caused the no status/bad length errors. The 1955 * umass device seems to work (better at least) with the keyboard hub 1956 * when not first attaching aue (tested once reading an approximately 1957 * 200MB file). 1958 * 1959 * Overflow can indicate that the device and host disagree about how 1960 * much data has been transfered. This may indicate a problem at any 1961 * point during the transfer, not just when the error occurs. It may 1962 * indicate data corruption. A warning message is printed. 1963 * 1964 * Trying to use both A and B transfers at the same time results in 1965 * incorrect transfer completion ISR reports and the status will then 1966 * include SL11_EPSTAT_SETUP, which is apparently set while the 1967 * transfer is in progress. I also noticed data corruption, even 1968 * after waiting for the transfer to complete. The driver now avoids 1969 * trying to start both at the same time. 1970 * 1971 * I had accidently initialized the B registers before they were valid 1972 * in some driver versions. Since every other performance enhancing 1973 * feature has been confirmed buggy in the errata doc, I have not 1974 * tried both transfers at once again with the documented 1975 * initialization order. 1976 * 1977 * However, I have seen this problem again ("done but not started" 1978 * errors), which in some cases cases the SETUP status bit to remain 1979 * set on future transfers. In other cases, the SETUP bit is not set 1980 * and no data corruption occurs. This occured while using both umass 1981 * and aue on a powered hub (maybe triggered by some local activity 1982 * also) and needs several reads of the 200MB file to trigger. The 1983 * driver now halts if SETUP is detected. 1984 */ 1985 1986 actlen = 0; 1987 1988 if (__predict_false(!status)) { 1989 DDOLOG("no status! xfer %p spipe %p", xfer, spipe, 0,0); 1990 printf("%s: no status! halted\n", SC_NAME(sc)); 1991 slhci_halt(sc, spipe, xfer); 1992 return; 1993 } 1994 1995 #ifdef SLHCI_DEBUG 1996 if (slhci_debug & SLHCI_D_NAK || (status & SL11_EPSTAT_ERRBITS) != 1997 SL11_EPSTAT_NAK) 1998 DLOGFLAG8(D_XFER, "STATUS=", status, "STALL", "NAK", 1999 "Overflow", "Setup", "Data Toggle", "Timeout", "Error", 2000 "ACK"); 2001 #endif 2002 2003 if (!(status & SL11_EPSTAT_ERRBITS)) { 2004 unsigned int cont; 2005 cont = slhci_read(sc, slhci_tregs[ab][CONT]); 2006 if (cont != 0) 2007 DLOG(D_XFER, "cont %d len %d", cont, 2008 spipe->tregs[LEN], 0,0); 2009 if (__predict_false(cont > spipe->tregs[LEN])) { 2010 DDOLOG("cont > len! cont %d len %d xfer->length %d " 2011 "spipe %p", cont, spipe->tregs[LEN], xfer->length, 2012 spipe); 2013 printf("%s: cont > len! cont %d len %d xfer->length " 2014 "%d", SC_NAME(sc), cont, spipe->tregs[LEN], 2015 xfer->length); 2016 slhci_halt(sc, spipe, xfer); 2017 return; 2018 } else { 2019 spipe->nerrs = 0; 2020 actlen = spipe->tregs[LEN] - cont; 2021 } 2022 } 2023 2024 /* Actual copyin done after starting next transfer. */ 2025 if (actlen && (spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) { 2026 target_buf = spipe->buffer; 2027 buf_start = spipe->tregs[ADR]; 2028 } else { 2029 target_buf = NULL; 2030 buf_start = 0; /* XXX gcc uninitialized warnings */ 2031 } 2032 2033 if (status & SL11_EPSTAT_ERRBITS) { 2034 status &= SL11_EPSTAT_ERRBITS; 2035 if (status & SL11_EPSTAT_SETUP) { 2036 printf("%s: Invalid controller state detected! " 2037 "halted\n", SC_NAME(sc)); 2038 DDOLOG("%s: Invalid controller state detected! " 2039 "halted\n", SC_NAME(sc), 0,0,0); 2040 slhci_halt(sc, spipe, xfer); 2041 return; 2042 } else if (__predict_false(sc->sc_bus.use_polling)) { 2043 if (status == SL11_EPSTAT_STALL) 2044 xfer->status = USBD_STALLED; 2045 else if (status == SL11_EPSTAT_TIMEOUT) 2046 xfer->status = USBD_TIMEOUT; 2047 else if (status == SL11_EPSTAT_NAK) 2048 xfer->status = USBD_TIMEOUT; /*XXX*/ 2049 else 2050 xfer->status = USBD_IOERROR; 2051 head = Q_CALLBACKS; 2052 } else if (status == SL11_EPSTAT_NAK) { 2053 if (spipe->pipe.interval) { 2054 spipe->lastframe = spipe->frame = 2055 t->frame + spipe->pipe.interval; 2056 slhci_queue_timed(sc, spipe); 2057 goto queued; 2058 } 2059 head = Q_NEXT_CB; 2060 } else if (++spipe->nerrs > SLHCI_MAX_RETRIES || 2061 status == SL11_EPSTAT_STALL) { 2062 if (status == SL11_EPSTAT_STALL) 2063 xfer->status = USBD_STALLED; 2064 else if (status == SL11_EPSTAT_TIMEOUT) 2065 xfer->status = USBD_TIMEOUT; 2066 else 2067 xfer->status = USBD_IOERROR; 2068 2069 DLOG(D_ERR, "Max retries reached! status %#x " 2070 "xfer->status %#x", status, xfer->status, 0,0); 2071 DLOGFLAG8(D_ERR, "STATUS=", status, "STALL", 2072 "NAK", "Overflow", "Setup", "Data Toggle", 2073 "Timeout", "Error", "ACK"); 2074 2075 if (status == SL11_EPSTAT_OVERFLOW && 2076 ratecheck(&sc->sc_overflow_warn_rate, 2077 &overflow_warn_rate)) { 2078 printf("%s: Overflow condition: " 2079 "data corruption possible\n", 2080 SC_NAME(sc)); 2081 DDOLOG("%s: Overflow condition: " 2082 "data corruption possible\n", 2083 SC_NAME(sc), 0,0,0); 2084 } 2085 head = Q_CALLBACKS; 2086 } else { 2087 head = Q_NEXT_CB; 2088 } 2089 } else if (spipe->ptype == PT_CTRL_SETUP) { 2090 spipe->tregs[PID] = spipe->newpid; 2091 2092 if (xfer->length) { 2093 LK_SLASSERT(spipe->newlen[1] != 0, sc, spipe, xfer, 2094 return); 2095 spipe->tregs[LEN] = spipe->newlen[1]; 2096 spipe->bustime = spipe->newbustime[1]; 2097 spipe->buffer = KERNADDR(&xfer->dmabuf, 0); 2098 spipe->ptype = PT_CTRL_DATA; 2099 } else { 2100 status_setup: 2101 /* CTRL_DATA swaps direction in PID then jumps here */ 2102 spipe->tregs[LEN] = 0; 2103 if (spipe->pflags & PF_LS) 2104 spipe->bustime = SLHCI_LS_CONST; 2105 else 2106 spipe->bustime = SLHCI_FS_CONST; 2107 spipe->ptype = PT_CTRL_STATUS; 2108 spipe->buffer = NULL; 2109 } 2110 2111 /* Status or first data packet must be DATA1. */ 2112 spipe->control |= SL11_EPCTRL_DATATOGGLE; 2113 if ((spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) 2114 spipe->control &= ~SL11_EPCTRL_DIRECTION; 2115 else 2116 spipe->control |= SL11_EPCTRL_DIRECTION; 2117 2118 head = Q_CB; 2119 } else if (spipe->ptype == PT_CTRL_STATUS) { 2120 head = Q_CALLBACKS; 2121 } else { /* bulk, intr, control data */ 2122 xfer->actlen += actlen; 2123 spipe->control ^= SL11_EPCTRL_DATATOGGLE; 2124 2125 if (actlen == spipe->tregs[LEN] && (xfer->length > 2126 xfer->actlen || spipe->wantshort)) { 2127 spipe->buffer += actlen; 2128 LK_SLASSERT(xfer->length >= xfer->actlen, sc, 2129 spipe, xfer, return); 2130 if (xfer->length - xfer->actlen < actlen) { 2131 spipe->wantshort = 0; 2132 spipe->tregs[LEN] = spipe->newlen[0]; 2133 spipe->bustime = spipe->newbustime[0]; 2134 LK_SLASSERT(xfer->actlen + 2135 spipe->tregs[LEN] == xfer->length, sc, 2136 spipe, xfer, return); 2137 } 2138 head = Q_CB; 2139 } else if (spipe->ptype == PT_CTRL_DATA) { 2140 spipe->tregs[PID] ^= SLHCI_PID_SWAP_IN_OUT; 2141 goto status_setup; 2142 } else { 2143 if (spipe->ptype == PT_INTR) { 2144 spipe->lastframe += 2145 spipe->pipe.interval; 2146 /* If ack, we try to keep the 2147 * interrupt rate by using lastframe 2148 * instead of the current frame. */ 2149 spipe->frame = spipe->lastframe + 2150 spipe->pipe.interval; 2151 } 2152 2153 /* Set the toggle for the next transfer. It 2154 * has already been toggled above, so the 2155 * current setting will apply to the next 2156 * transfer. */ 2157 if (spipe->control & SL11_EPCTRL_DATATOGGLE) 2158 spipe->pflags |= PF_TOGGLE; 2159 else 2160 spipe->pflags &= ~PF_TOGGLE; 2161 2162 head = Q_CALLBACKS; 2163 } 2164 } 2165 2166 if (head == Q_CALLBACKS) { 2167 gcq_remove(&spipe->to); 2168 2169 if (xfer->status == USBD_IN_PROGRESS) { 2170 LK_SLASSERT(xfer->actlen <= xfer->length, sc, 2171 spipe, xfer, return); 2172 xfer->status = USBD_NORMAL_COMPLETION; 2173 #if 0 /* usb_transfer_complete will do this */ 2174 if (xfer->length == xfer->actlen || xfer->flags & 2175 USBD_SHORT_XFER_OK) 2176 xfer->status = USBD_NORMAL_COMPLETION; 2177 else 2178 xfer->status = USBD_SHORT_XFER; 2179 #endif 2180 } 2181 } 2182 2183 enter_q(t, spipe, head); 2184 2185 queued: 2186 if (target_buf != NULL) { 2187 slhci_dotransfer(sc); 2188 start_cc_time(&t_copy_from_dev, actlen); 2189 slhci_read_multi(sc, buf_start, target_buf, actlen); 2190 stop_cc_time(&t_copy_from_dev); 2191 DLOGBUF(D_BUF, target_buf, actlen); 2192 t->pend -= SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(actlen); 2193 } 2194 2195 done: 2196 t->len[ab] = -1; 2197 } 2198 2199 static void 2200 slhci_tstart(struct slhci_softc *sc) 2201 { 2202 struct slhci_transfers *t; 2203 struct slhci_pipe *spipe; 2204 int remaining_bustime; 2205 int s; 2206 2207 t = &sc->sc_transfers; 2208 2209 SLHCI_LOCKASSERT(sc, locked, unlocked); 2210 2211 if (!(t->flags & (F_AREADY|F_BREADY))) 2212 return; 2213 2214 if (t->flags & (F_AINPROG|F_BINPROG|F_DISABLED)) 2215 return; 2216 2217 /* We have about 6 us to get from the bus time check to 2218 * starting the transfer or we might babble or the chip might fail to 2219 * signal transfer complete. This leaves no time for any other 2220 * interrupts. Some ports have splipi (MP only) higher than splhigh 2221 * which might cause longer delays. */ 2222 s = splhigh(); 2223 remaining_bustime = (int)(slhci_read(sc, SL811_CSOF)) << 6; 2224 remaining_bustime -= SLHCI_END_BUSTIME; 2225 2226 /* Start one transfer only, clearing any aborted transfers that are 2227 * not yet in progress and skipping missed isoc. It is easier to copy 2228 * & paste most of the A/B sections than to make the logic work 2229 * otherwise and this allows better constant use. */ 2230 if (t->flags & F_AREADY) { 2231 spipe = t->spipe[A]; 2232 if (spipe == NULL) { 2233 t->flags &= ~F_AREADY; 2234 t->len[A] = -1; 2235 } else if (remaining_bustime >= spipe->bustime) { 2236 t->flags &= ~(F_AREADY|F_SOFCHECK1|F_SOFCHECK2); 2237 t->flags |= F_AINPROG; 2238 start_cc_time(&t_ab[A], spipe->tregs[LEN]); 2239 slhci_write(sc, SL11_E0CTRL, spipe->control); 2240 goto pend; 2241 } 2242 } 2243 if (t->flags & F_BREADY) { 2244 spipe = t->spipe[B]; 2245 if (spipe == NULL) { 2246 t->flags &= ~F_BREADY; 2247 t->len[B] = -1; 2248 } else if (remaining_bustime >= spipe->bustime) { 2249 t->flags &= ~(F_BREADY|F_SOFCHECK1|F_SOFCHECK2); 2250 t->flags |= F_BINPROG; 2251 start_cc_time(&t_ab[B], spipe->tregs[LEN]); 2252 slhci_write(sc, SL11_E1CTRL, spipe->control); 2253 pend: 2254 t->pend = spipe->bustime; 2255 } 2256 } 2257 splx(s); 2258 } 2259 2260 static void 2261 slhci_dotransfer(struct slhci_softc *sc) 2262 { 2263 struct slhci_transfers *t; 2264 struct slhci_pipe *spipe; 2265 int ab, i; 2266 2267 t = &sc->sc_transfers; 2268 2269 SLHCI_LOCKASSERT(sc, locked, unlocked); 2270 2271 while ((t->len[A] == -1 || t->len[B] == -1) && 2272 (GOT_FIRST_TIMED_COND(spipe, t, spipe->frame <= t->frame) || 2273 GOT_FIRST_CB(spipe, t))) { 2274 LK_SLASSERT(spipe->xfer != NULL, sc, spipe, NULL, return); 2275 LK_SLASSERT(spipe->ptype != PT_ROOT_CTRL && spipe->ptype != 2276 PT_ROOT_INTR, sc, spipe, NULL, return); 2277 2278 /* Check that this transfer can fit in the remaining memory. */ 2279 if (t->len[A] + t->len[B] + spipe->tregs[LEN] + 1 > 2280 SL11_MAX_PACKET_SIZE) { 2281 DLOG(D_XFER, "Transfer does not fit. alen %d blen %d " 2282 "len %d", t->len[A], t->len[B], spipe->tregs[LEN], 2283 0); 2284 return; 2285 } 2286 2287 gcq_remove(&spipe->xq); 2288 2289 if (t->len[A] == -1) { 2290 ab = A; 2291 spipe->tregs[ADR] = SL11_BUFFER_START; 2292 } else { 2293 ab = B; 2294 spipe->tregs[ADR] = SL11_BUFFER_END - 2295 spipe->tregs[LEN]; 2296 } 2297 2298 t->len[ab] = spipe->tregs[LEN]; 2299 2300 if (spipe->tregs[LEN] && (spipe->tregs[PID] & SL11_PID_BITS) 2301 != SL11_PID_IN) { 2302 start_cc_time(&t_copy_to_dev, 2303 spipe->tregs[LEN]); 2304 slhci_write_multi(sc, spipe->tregs[ADR], 2305 spipe->buffer, spipe->tregs[LEN]); 2306 stop_cc_time(&t_copy_to_dev); 2307 t->pend -= SLHCI_FS_CONST + 2308 SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); 2309 } 2310 2311 DLOG(D_MSG, "NEW TRANSFER %s flags %#x alen %d blen %d", 2312 ab ? "B" : "A", t->flags, t->len[0], t->len[1]); 2313 2314 if (spipe->tregs[LEN]) 2315 i = 0; 2316 else 2317 i = 1; 2318 2319 for (; i <= 3; i++) 2320 if (t->current_tregs[ab][i] != spipe->tregs[i]) { 2321 t->current_tregs[ab][i] = spipe->tregs[i]; 2322 slhci_write(sc, slhci_tregs[ab][i], 2323 spipe->tregs[i]); 2324 } 2325 2326 DLOG(D_SXFER, "Transfer len %d pid %#x dev %d type %s", 2327 spipe->tregs[LEN], spipe->tregs[PID], spipe->tregs[DEV], 2328 pnames(spipe->ptype)); 2329 2330 t->spipe[ab] = spipe; 2331 t->flags |= ab ? F_BREADY : F_AREADY; 2332 2333 slhci_tstart(sc); 2334 } 2335 } 2336 2337 /* slhci_callback is called after the lock is taken from splsoftusb. 2338 * s is pointer to old spl (splsoftusb). */ 2339 static void 2340 slhci_callback(struct slhci_softc *sc, int *s) 2341 { 2342 struct slhci_transfers *t; 2343 struct slhci_pipe *spipe; 2344 struct usbd_xfer *xfer; 2345 2346 t = &sc->sc_transfers; 2347 2348 SLHCI_LOCKASSERT(sc, locked, unlocked); 2349 2350 DLOG(D_SOFT, "CB flags %#x", t->flags, 0,0,0); 2351 for (;;) { 2352 if (__predict_false(t->flags & F_ROOTINTR)) { 2353 t->flags &= ~F_ROOTINTR; 2354 if (t->rootintr != NULL) { 2355 u_char *p; 2356 2357 p = KERNADDR(&t->rootintr->dmabuf, 0); 2358 p[0] = 2; 2359 t->rootintr->actlen = 1; 2360 t->rootintr->status = USBD_NORMAL_COMPLETION; 2361 xfer = t->rootintr; 2362 goto do_callback; 2363 } 2364 } 2365 2366 2367 if (!DEQUEUED_CALLBACK(spipe, t)) 2368 return; 2369 2370 xfer = spipe->xfer; 2371 LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); 2372 spipe->xfer = NULL; 2373 DLOG(D_XFER, "xfer callback length %d actlen %d spipe %x " 2374 "type %s", xfer->length, xfer->actlen, spipe, 2375 pnames(spipe->ptype)); 2376 do_callback: 2377 slhci_do_callback(sc, xfer, s); 2378 } 2379 } 2380 2381 static void 2382 slhci_enter_xfer(struct slhci_softc *sc, struct slhci_pipe *spipe) 2383 { 2384 struct slhci_transfers *t; 2385 2386 t = &sc->sc_transfers; 2387 2388 SLHCI_MAINLOCKASSERT(sc); 2389 2390 if (__predict_false(t->flags & F_DISABLED) || 2391 __predict_false(spipe->pflags & PF_GONE)) { 2392 DLOG(D_MSG, "slhci_enter_xfer: DISABLED or GONE", 0,0,0,0); 2393 spipe->xfer->status = USBD_CANCELLED; 2394 } 2395 2396 if (spipe->xfer->status == USBD_IN_PROGRESS) { 2397 if (spipe->xfer->timeout) { 2398 spipe->to_frame = t->frame + spipe->xfer->timeout; 2399 slhci_xfer_timer(sc, spipe); 2400 } 2401 if (spipe->pipe.interval) 2402 slhci_queue_timed(sc, spipe); 2403 else 2404 enter_q(t, spipe, Q_CB); 2405 } else 2406 enter_callback(t, spipe); 2407 } 2408 2409 #ifdef SLHCI_WAITLOCK 2410 static void 2411 slhci_enter_xfers(struct slhci_softc *sc) 2412 { 2413 struct slhci_pipe *spipe; 2414 2415 SLHCI_LOCKASSERT(sc, locked, locked); 2416 2417 while (DEQUEUED_WAITQ(spipe, sc)) 2418 slhci_enter_xfer(sc, spipe); 2419 } 2420 #endif 2421 2422 static void 2423 slhci_queue_timed(struct slhci_softc *sc, struct slhci_pipe *spipe) 2424 { 2425 struct slhci_transfers *t; 2426 struct gcq *q; 2427 struct slhci_pipe *spp; 2428 2429 t = &sc->sc_transfers; 2430 2431 SLHCI_MAINLOCKASSERT(sc); 2432 2433 FIND_TIMED(q, t, spp, spp->frame > spipe->frame); 2434 gcq_insert_before(q, &spipe->xq); 2435 } 2436 2437 static void 2438 slhci_xfer_timer(struct slhci_softc *sc, struct slhci_pipe *spipe) 2439 { 2440 struct slhci_transfers *t; 2441 struct gcq *q; 2442 struct slhci_pipe *spp; 2443 2444 t = &sc->sc_transfers; 2445 2446 SLHCI_MAINLOCKASSERT(sc); 2447 2448 FIND_TO(q, t, spp, spp->to_frame >= spipe->to_frame); 2449 gcq_insert_before(q, &spipe->to); 2450 } 2451 2452 static void 2453 slhci_do_repeat(struct slhci_softc *sc, struct usbd_xfer *xfer) 2454 { 2455 struct slhci_transfers *t; 2456 struct slhci_pipe *spipe; 2457 2458 t = &sc->sc_transfers; 2459 spipe = (struct slhci_pipe *)xfer->pipe; 2460 2461 if (xfer == t->rootintr) 2462 return; 2463 2464 DLOG(D_TRACE, "REPEAT: xfer %p actlen %d frame %u now %u", 2465 xfer, xfer->actlen, spipe->frame, sc->sc_transfers.frame); 2466 2467 xfer->actlen = 0; 2468 spipe->xfer = xfer; 2469 if (spipe->tregs[LEN]) 2470 KASSERT(spipe->buffer == KERNADDR(&xfer->dmabuf, 0)); 2471 slhci_queue_timed(sc, spipe); 2472 slhci_dotransfer(sc); 2473 } 2474 2475 static void 2476 slhci_callback_schedule(struct slhci_softc *sc) 2477 { 2478 struct slhci_transfers *t; 2479 2480 t = &sc->sc_transfers; 2481 2482 SLHCI_LOCKASSERT(sc, locked, unlocked); 2483 2484 if (t->flags & F_ACTIVE) 2485 slhci_do_callback_schedule(sc); 2486 } 2487 2488 static void 2489 slhci_do_callback_schedule(struct slhci_softc *sc) 2490 { 2491 struct slhci_transfers *t; 2492 2493 t = &sc->sc_transfers; 2494 2495 SLHCI_LOCKASSERT(sc, locked, unlocked); 2496 2497 if (!(t->flags & F_CALLBACK)) { 2498 t->flags |= F_CALLBACK; 2499 softint_schedule(sc->sc_cb_softintr); 2500 } 2501 } 2502 2503 #if 0 2504 /* must be called with lock taken from splsoftusb */ 2505 /* XXX static */ void 2506 slhci_pollxfer(struct slhci_softc *sc, struct usbd_xfer *xfer, int *s) 2507 { 2508 SLHCI_LOCKASSERT(sc, locked, unlocked); 2509 slhci_dotransfer(sc); 2510 do { 2511 slhci_dointr(sc); 2512 } while (xfer->status == USBD_IN_PROGRESS); 2513 slhci_do_callback(sc, xfer, s); 2514 } 2515 #endif 2516 2517 static usbd_status 2518 slhci_do_poll(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2519 usbd_xfer *xfer) 2520 { 2521 slhci_waitintr(sc, 0); 2522 2523 return USBD_NORMAL_COMPLETION; 2524 } 2525 2526 static usbd_status 2527 slhci_lsvh_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2528 usbd_xfer *xfer) 2529 { 2530 struct slhci_transfers *t; 2531 2532 t = &sc->sc_transfers; 2533 2534 if (!(t->flags & F_LSVH_WARNED)) { 2535 printf("%s: Low speed device via hub disabled, " 2536 "see slhci(4)\n", SC_NAME(sc)); 2537 DDOLOG("%s: Low speed device via hub disabled, " 2538 "see slhci(4)\n", SC_NAME(sc), 0,0,0); 2539 t->flags |= F_LSVH_WARNED; 2540 } 2541 return USBD_INVAL; 2542 } 2543 2544 static usbd_status 2545 slhci_isoc_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2546 usbd_xfer *xfer) 2547 { 2548 struct slhci_transfers *t; 2549 2550 t = &sc->sc_transfers; 2551 2552 if (!(t->flags & F_ISOC_WARNED)) { 2553 printf("%s: ISOC transfer not supported " 2554 "(see slhci(4))\n", SC_NAME(sc)); 2555 DDOLOG("%s: ISOC transfer not supported " 2556 "(see slhci(4))\n", SC_NAME(sc), 0,0,0); 2557 t->flags |= F_ISOC_WARNED; 2558 } 2559 return USBD_INVAL; 2560 } 2561 2562 static usbd_status 2563 slhci_open_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2564 usbd_xfer *xfer) 2565 { 2566 struct slhci_transfers *t; 2567 struct usbd_pipe *pipe; 2568 2569 t = &sc->sc_transfers; 2570 pipe = &spipe->pipe; 2571 2572 if (t->flags & F_DISABLED) 2573 return USBD_CANCELLED; 2574 else if (pipe->interval && !slhci_reserve_bustime(sc, spipe, 1)) 2575 return USBD_PENDING_REQUESTS; 2576 else { 2577 enter_all_pipes(t, spipe); 2578 return USBD_NORMAL_COMPLETION; 2579 } 2580 } 2581 2582 static usbd_status 2583 slhci_close_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2584 usbd_xfer *xfer) 2585 { 2586 struct slhci_transfers *t; 2587 struct usbd_pipe *pipe; 2588 2589 t = &sc->sc_transfers; 2590 pipe = &spipe->pipe; 2591 2592 if (pipe->interval && spipe->ptype != PT_ROOT_INTR) 2593 slhci_reserve_bustime(sc, spipe, 0); 2594 gcq_remove(&spipe->ap); 2595 return USBD_NORMAL_COMPLETION; 2596 } 2597 2598 static usbd_status 2599 slhci_do_abort(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2600 usbd_xfer *xfer) 2601 { 2602 struct slhci_transfers *t; 2603 2604 t = &sc->sc_transfers; 2605 2606 SLHCI_MAINLOCKASSERT(sc); 2607 2608 if (spipe->xfer == xfer) { 2609 if (spipe->ptype == PT_ROOT_INTR) { 2610 if (t->rootintr == spipe->xfer) /* XXX assert? */ 2611 t->rootintr = NULL; 2612 } else { 2613 gcq_remove(&spipe->to); 2614 gcq_remove(&spipe->xq); 2615 2616 if (t->spipe[A] == spipe) { 2617 t->spipe[A] = NULL; 2618 if (!(t->flags & F_AINPROG)) 2619 t->len[A] = -1; 2620 } else if (t->spipe[B] == spipe) { 2621 t->spipe[B] = NULL; 2622 if (!(t->flags & F_BINPROG)) 2623 t->len[B] = -1; 2624 } 2625 } 2626 2627 if (xfer->status != USBD_TIMEOUT) { 2628 spipe->xfer = NULL; 2629 spipe->pipe.repeat = 0; /* XXX timeout? */ 2630 } 2631 } 2632 2633 return USBD_NORMAL_COMPLETION; 2634 } 2635 2636 static usbd_status 2637 slhci_do_attach(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2638 usbd_xfer *xfer) 2639 { 2640 struct slhci_transfers *t; 2641 const char *rev; 2642 2643 t = &sc->sc_transfers; 2644 2645 SLHCI_LOCKASSERT(sc, locked, unlocked); 2646 2647 /* Detect and check the controller type */ 2648 t->sltype = SL11_GET_REV(slhci_read(sc, SL11_REV)); 2649 2650 /* SL11H not supported */ 2651 if (!slhci_supported_rev(t->sltype)) { 2652 if (t->sltype == SLTYPE_SL11H) 2653 printf("%s: SL11H unsupported or bus error!\n", 2654 SC_NAME(sc)); 2655 else 2656 printf("%s: Unknown chip revision!\n", SC_NAME(sc)); 2657 return USBD_INVAL; 2658 } 2659 2660 callout_init(&sc->sc_timer, CALLOUT_MPSAFE); 2661 callout_setfunc(&sc->sc_timer, slhci_reset_entry, sc); 2662 2663 /* It is not safe to call the soft interrupt directly as 2664 * usb_schedsoftintr does in the use_polling case (due to locking). 2665 */ 2666 sc->sc_cb_softintr = softint_establish(SOFTINT_NET, 2667 slhci_callback_entry, sc); 2668 2669 #ifdef SLHCI_DEBUG 2670 ssc = sc; 2671 #ifdef USB_DEBUG 2672 if (slhci_usbdebug >= 0) 2673 usbdebug = slhci_usbdebug; 2674 #endif 2675 #endif 2676 2677 if (t->sltype == SLTYPE_SL811HS_R12) 2678 rev = " (rev 1.2)"; 2679 else if (t->sltype == SLTYPE_SL811HS_R14) 2680 rev = " (rev 1.4 or 1.5)"; 2681 else 2682 rev = " (unknown revision)"; 2683 2684 aprint_normal("%s: ScanLogic SL811HS/T USB Host Controller %s\n", 2685 SC_NAME(sc), rev); 2686 2687 aprint_normal("%s: Max Current %u mA (value by code, not by probe)\n", 2688 SC_NAME(sc), t->max_current * 2); 2689 2690 #if defined(SLHCI_DEBUG) || defined(SLHCI_NO_OVERTIME) || \ 2691 defined(SLHCI_TRY_LSVH) || defined(SLHCI_PROFILE_TRANSFER) 2692 aprint_normal("%s: driver options:" 2693 #ifdef SLHCI_DEBUG 2694 " SLHCI_DEBUG" 2695 #endif 2696 #ifdef SLHCI_TRY_LSVH 2697 " SLHCI_TRY_LSVH" 2698 #endif 2699 #ifdef SLHCI_NO_OVERTIME 2700 " SLHCI_NO_OVERTIME" 2701 #endif 2702 #ifdef SLHCI_PROFILE_TRANSFER 2703 " SLHCI_PROFILE_TRANSFER" 2704 #endif 2705 "\n", SC_NAME(sc)); 2706 #endif 2707 sc->sc_bus.usbrev = USBREV_1_1; 2708 sc->sc_bus.methods = __UNCONST(&slhci_bus_methods); 2709 sc->sc_bus.pipe_size = sizeof(struct slhci_pipe); 2710 2711 if (!sc->sc_enable_power) 2712 t->flags |= F_REALPOWER; 2713 2714 t->flags |= F_ACTIVE; 2715 2716 return USBD_NORMAL_COMPLETION; 2717 } 2718 2719 /* Called to deactivate or stop use of the controller instead of panicing. 2720 * Will cancel the xfer correctly even when not on a list. 2721 */ 2722 static usbd_status 2723 slhci_halt(struct slhci_softc *sc, struct slhci_pipe *spipe, struct usbd_xfer 2724 *xfer) 2725 { 2726 struct slhci_transfers *t; 2727 2728 SLHCI_LOCKASSERT(sc, locked, unlocked); 2729 2730 t = &sc->sc_transfers; 2731 2732 DDOLOG("Halt! sc %p spipe %p xfer %p", sc, spipe, xfer, 0); 2733 2734 if (spipe != NULL) 2735 slhci_log_spipe(spipe); 2736 2737 if (xfer != NULL) 2738 slhci_log_xfer(xfer); 2739 2740 if (spipe != NULL && xfer != NULL && spipe->xfer == xfer && 2741 !gcq_onlist(&spipe->xq) && t->spipe[A] != spipe && t->spipe[B] != 2742 spipe) { 2743 xfer->status = USBD_CANCELLED; 2744 enter_callback(t, spipe); 2745 } 2746 2747 if (t->flags & F_ACTIVE) { 2748 slhci_intrchange(sc, 0); 2749 /* leave power on when halting in case flash devices or disks 2750 * are attached, which may be writing and could be damaged 2751 * by abrupt power loss. The root hub clear power feature 2752 * should still work after halting. 2753 */ 2754 } 2755 2756 t->flags &= ~F_ACTIVE; 2757 t->flags |= F_UDISABLED; 2758 if (!(t->flags & F_NODEV)) 2759 t->flags |= F_NODEV|F_CCONNECT|F_ROOTINTR; 2760 slhci_drain(sc); 2761 2762 /* One last callback for the drain and device removal. */ 2763 slhci_do_callback_schedule(sc); 2764 2765 return USBD_NORMAL_COMPLETION; 2766 } 2767 2768 /* There are three interrupt states: no interrupts during reset and after 2769 * device deactivation, INSERT only for no device present but power on, and 2770 * SOF, INSERT, ADONE, and BDONE when device is present. 2771 */ 2772 static void 2773 slhci_intrchange(struct slhci_softc *sc, uint8_t new_ier) 2774 { 2775 SLHCI_MAINLOCKASSERT(sc); 2776 if (sc->sc_ier != new_ier) { 2777 sc->sc_ier = new_ier; 2778 slhci_write(sc, SL11_IER, new_ier); 2779 BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); 2780 } 2781 } 2782 2783 /* Drain: cancel all pending transfers and put them on the callback list and 2784 * set the UDISABLED flag. UDISABLED is cleared only by reset. */ 2785 static void 2786 slhci_drain(struct slhci_softc *sc) 2787 { 2788 struct slhci_transfers *t; 2789 struct slhci_pipe *spipe; 2790 struct gcq *q; 2791 int i; 2792 2793 SLHCI_LOCKASSERT(sc, locked, unlocked); 2794 2795 t = &sc->sc_transfers; 2796 2797 DLOG(D_MSG, "DRAIN flags %#x", t->flags, 0,0,0); 2798 2799 t->pend = INT_MAX; 2800 2801 for (i=0; i<=1; i++) { 2802 t->len[i] = -1; 2803 if (t->spipe[i] != NULL) { 2804 enter_callback(t, t->spipe[i]); 2805 t->spipe[i] = NULL; 2806 } 2807 } 2808 2809 /* Merge the queues into the callback queue. */ 2810 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_CB]); 2811 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_NEXT_CB]); 2812 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->timed); 2813 2814 /* Cancel all pipes. Note that not all of these may be on the 2815 * callback queue yet; some could be in slhci_start, for example. */ 2816 FOREACH_AP(q, t, spipe) { 2817 spipe->pflags = PF_GONE; 2818 spipe->pipe.repeat = 0; 2819 spipe->pipe.aborting = 1; 2820 if (spipe->xfer != NULL) 2821 spipe->xfer->status = USBD_CANCELLED; 2822 } 2823 2824 gcq_remove_all(&t->to); 2825 2826 t->flags |= F_UDISABLED; 2827 t->flags &= ~(F_AREADY|F_BREADY|F_AINPROG|F_BINPROG|F_LOWSPEED); 2828 } 2829 2830 /* RESET: SL11_CTRL_RESETENGINE=1 and SL11_CTRL_JKSTATE=0 for 50ms 2831 * reconfigure SOF after reset, must wait 2.5us before USB bus activity (SOF) 2832 * check attached device speed. 2833 * must wait 100ms before USB transaction according to app note, 10ms 2834 * by spec. uhub does this delay 2835 * 2836 * Started from root hub set feature reset, which does step one. 2837 * use_polling will call slhci_reset directly, otherwise the callout goes 2838 * through slhci_reset_entry. 2839 */ 2840 void 2841 slhci_reset(struct slhci_softc *sc) 2842 { 2843 struct slhci_transfers *t; 2844 uint8_t r, pol, ctrl; 2845 2846 t = &sc->sc_transfers; 2847 SLHCI_MAINLOCKASSERT(sc); 2848 2849 stop_cc_time(&t_delay); 2850 2851 KASSERT(t->flags & F_ACTIVE); 2852 2853 start_cc_time(&t_delay, 0); 2854 stop_cc_time(&t_delay); 2855 2856 slhci_write(sc, SL11_CTRL, 0); 2857 start_cc_time(&t_delay, 3); 2858 DELAY(3); 2859 stop_cc_time(&t_delay); 2860 slhci_write(sc, SL11_ISR, 0xff); 2861 2862 r = slhci_read(sc, SL11_ISR); 2863 2864 if (r & SL11_ISR_INSERT) 2865 slhci_write(sc, SL11_ISR, SL11_ISR_INSERT); 2866 2867 if (r & SL11_ISR_NODEV) { 2868 DLOG(D_MSG, "NC", 0,0,0,0); 2869 /* Normally, the hard interrupt insert routine will issue 2870 * CCONNECT, however we need to do it here if the detach 2871 * happened during reset. */ 2872 if (!(t->flags & F_NODEV)) 2873 t->flags |= F_CCONNECT|F_ROOTINTR|F_NODEV; 2874 slhci_intrchange(sc, SL11_IER_INSERT); 2875 } else { 2876 if (t->flags & F_NODEV) 2877 t->flags |= F_CCONNECT; 2878 t->flags &= ~(F_NODEV|F_LOWSPEED); 2879 if (r & SL11_ISR_DATA) { 2880 DLOG(D_MSG, "FS", 0,0,0,0); 2881 pol = ctrl = 0; 2882 } else { 2883 DLOG(D_MSG, "LS", 0,0,0,0); 2884 pol = SL811_CSOF_POLARITY; 2885 ctrl = SL11_CTRL_LOWSPEED; 2886 t->flags |= F_LOWSPEED; 2887 } 2888 2889 /* Enable SOF auto-generation */ 2890 t->frame = 0; /* write to SL811_CSOF will reset frame */ 2891 slhci_write(sc, SL11_SOFTIME, 0xe0); 2892 slhci_write(sc, SL811_CSOF, pol|SL811_CSOF_MASTER|0x2e); 2893 slhci_write(sc, SL11_CTRL, ctrl|SL11_CTRL_ENABLESOF); 2894 2895 /* According to the app note, ARM must be set 2896 * for SOF generation to work. We initialize all 2897 * USBA registers here for current_tregs. */ 2898 slhci_write(sc, SL11_E0ADDR, SL11_BUFFER_START); 2899 slhci_write(sc, SL11_E0LEN, 0); 2900 slhci_write(sc, SL11_E0PID, SL11_PID_SOF); 2901 slhci_write(sc, SL11_E0DEV, 0); 2902 slhci_write(sc, SL11_E0CTRL, SL11_EPCTRL_ARM); 2903 2904 /* Initialize B registers. This can't be done earlier since 2905 * they are not valid until the SL811_CSOF register is written 2906 * above due to SL11H compatability. */ 2907 slhci_write(sc, SL11_E1ADDR, SL11_BUFFER_END - 8); 2908 slhci_write(sc, SL11_E1LEN, 0); 2909 slhci_write(sc, SL11_E1PID, 0); 2910 slhci_write(sc, SL11_E1DEV, 0); 2911 2912 t->current_tregs[0][ADR] = SL11_BUFFER_START; 2913 t->current_tregs[0][LEN] = 0; 2914 t->current_tregs[0][PID] = SL11_PID_SOF; 2915 t->current_tregs[0][DEV] = 0; 2916 t->current_tregs[1][ADR] = SL11_BUFFER_END - 8; 2917 t->current_tregs[1][LEN] = 0; 2918 t->current_tregs[1][PID] = 0; 2919 t->current_tregs[1][DEV] = 0; 2920 2921 /* SOF start will produce USBA interrupt */ 2922 t->len[A] = 0; 2923 t->flags |= F_AINPROG; 2924 2925 slhci_intrchange(sc, SLHCI_NORMAL_INTERRUPTS); 2926 } 2927 2928 t->flags &= ~(F_UDISABLED|F_RESET); 2929 t->flags |= F_CRESET|F_ROOTINTR; 2930 DLOG(D_MSG, "RESET done flags %#x", t->flags, 0,0,0); 2931 } 2932 2933 /* returns 1 if succeeded, 0 if failed, reserve == 0 is unreserve */ 2934 static int 2935 slhci_reserve_bustime(struct slhci_softc *sc, struct slhci_pipe *spipe, int 2936 reserve) 2937 { 2938 struct slhci_transfers *t; 2939 int bustime, max_packet; 2940 2941 SLHCI_LOCKASSERT(sc, locked, unlocked); 2942 2943 t = &sc->sc_transfers; 2944 max_packet = UGETW(spipe->pipe.endpoint->edesc->wMaxPacketSize); 2945 2946 if (spipe->pflags & PF_LS) 2947 bustime = SLHCI_LS_CONST + SLHCI_LS_DATA_TIME(max_packet); 2948 else 2949 bustime = SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(max_packet); 2950 2951 if (!reserve) { 2952 t->reserved_bustime -= bustime; 2953 #ifdef DIAGNOSTIC 2954 if (t->reserved_bustime < 0) { 2955 printf("%s: reserved_bustime %d < 0!\n", 2956 SC_NAME(sc), t->reserved_bustime); 2957 DDOLOG("%s: reserved_bustime %d < 0!\n", 2958 SC_NAME(sc), t->reserved_bustime, 0,0); 2959 t->reserved_bustime = 0; 2960 } 2961 #endif 2962 return 1; 2963 } 2964 2965 if (t->reserved_bustime + bustime > SLHCI_RESERVED_BUSTIME) { 2966 if (ratecheck(&sc->sc_reserved_warn_rate, 2967 &reserved_warn_rate)) 2968 #ifdef SLHCI_NO_OVERTIME 2969 { 2970 printf("%s: Max reserved bus time exceeded! " 2971 "Erroring request.\n", SC_NAME(sc)); 2972 DDOLOG("%s: Max reserved bus time exceeded! " 2973 "Erroring request.\n", SC_NAME(sc), 0,0,0); 2974 } 2975 return 0; 2976 #else 2977 { 2978 printf("%s: Reserved bus time exceeds %d!\n", 2979 SC_NAME(sc), SLHCI_RESERVED_BUSTIME); 2980 DDOLOG("%s: Reserved bus time exceeds %d!\n", 2981 SC_NAME(sc), SLHCI_RESERVED_BUSTIME, 0,0); 2982 } 2983 #endif 2984 } 2985 2986 t->reserved_bustime += bustime; 2987 return 1; 2988 } 2989 2990 /* Device insertion/removal interrupt */ 2991 static void 2992 slhci_insert(struct slhci_softc *sc) 2993 { 2994 struct slhci_transfers *t; 2995 2996 t = &sc->sc_transfers; 2997 2998 SLHCI_LOCKASSERT(sc, locked, unlocked); 2999 3000 if (t->flags & F_NODEV) 3001 slhci_intrchange(sc, 0); 3002 else { 3003 slhci_drain(sc); 3004 slhci_intrchange(sc, SL11_IER_INSERT); 3005 } 3006 t->flags ^= F_NODEV; 3007 t->flags |= F_ROOTINTR|F_CCONNECT; 3008 DLOG(D_MSG, "INSERT intr: flags after %#x", t->flags, 0,0,0); 3009 } 3010 3011 /* 3012 * Data structures and routines to emulate the root hub. 3013 */ 3014 static const usb_device_descriptor_t slhci_devd = { 3015 USB_DEVICE_DESCRIPTOR_SIZE, 3016 UDESC_DEVICE, /* type */ 3017 {0x01, 0x01}, /* USB version */ 3018 UDCLASS_HUB, /* class */ 3019 UDSUBCLASS_HUB, /* subclass */ 3020 0, /* protocol */ 3021 64, /* max packet */ 3022 {USB_VENDOR_SCANLOGIC & 0xff, /* vendor ID (low) */ 3023 USB_VENDOR_SCANLOGIC >> 8 }, /* vendor ID (high) */ 3024 {0} /* ? */, /* product ID */ 3025 {0}, /* device */ 3026 1, /* index to manufacturer */ 3027 2, /* index to product */ 3028 0, /* index to serial number */ 3029 1 /* number of configurations */ 3030 }; 3031 3032 static const struct slhci_confd_t { 3033 const usb_config_descriptor_t confd; 3034 const usb_interface_descriptor_t ifcd; 3035 const usb_endpoint_descriptor_t endpd; 3036 } UPACKED slhci_confd = { 3037 { /* Configuration */ 3038 USB_CONFIG_DESCRIPTOR_SIZE, 3039 UDESC_CONFIG, 3040 {USB_CONFIG_DESCRIPTOR_SIZE + 3041 USB_INTERFACE_DESCRIPTOR_SIZE + 3042 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3043 1, /* number of interfaces */ 3044 1, /* configuration value */ 3045 0, /* index to configuration */ 3046 UC_SELF_POWERED, /* attributes */ 3047 0 /* max current, filled in later */ 3048 }, { /* Interface */ 3049 USB_INTERFACE_DESCRIPTOR_SIZE, 3050 UDESC_INTERFACE, 3051 0, /* interface number */ 3052 0, /* alternate setting */ 3053 1, /* number of endpoint */ 3054 UICLASS_HUB, /* class */ 3055 UISUBCLASS_HUB, /* subclass */ 3056 0, /* protocol */ 3057 0 /* index to interface */ 3058 }, { /* Endpoint */ 3059 USB_ENDPOINT_DESCRIPTOR_SIZE, 3060 UDESC_ENDPOINT, 3061 UE_DIR_IN | ROOT_INTR_ENDPT, /* endpoint address */ 3062 UE_INTERRUPT, /* attributes */ 3063 {240, 0}, /* max packet size */ 3064 255 /* interval */ 3065 } 3066 }; 3067 3068 static const usb_hub_descriptor_t slhci_hubd = { 3069 USB_HUB_DESCRIPTOR_SIZE, 3070 UDESC_HUB, 3071 1, /* number of ports */ 3072 {UHD_PWR_INDIVIDUAL | UHD_OC_NONE, 0}, /* hub characteristics */ 3073 50, /* 5:power on to power good, units of 2ms */ 3074 0, /* 6:maximum current, filled in later */ 3075 { 0x00 }, /* port is removable */ 3076 { 0x00 } /* port power control mask */ 3077 }; 3078 3079 static int 3080 slhci_str(usb_string_descriptor_t *p, unsigned int l, const char *s) 3081 { 3082 int i; 3083 3084 if (l == 0) 3085 return 0; 3086 p->bLength = 2 * strlen(s) + 2; 3087 if (l == 1) 3088 return 1; 3089 p->bDescriptorType = UDESC_STRING; 3090 l -= 2; 3091 for (i = 0; s[i] && l > 1; i++, l -= 2) 3092 USETW2(p->bString[i], 0, s[i]); 3093 return 2 * i + 2; 3094 } 3095 3096 static usbd_status 3097 slhci_clear_feature(struct slhci_softc *sc, unsigned int what) 3098 { 3099 struct slhci_transfers *t; 3100 usbd_status error; 3101 3102 t = &sc->sc_transfers; 3103 error = USBD_NORMAL_COMPLETION; 3104 3105 SLHCI_LOCKASSERT(sc, locked, unlocked); 3106 3107 if (what == UHF_PORT_POWER) { 3108 DLOG(D_MSG, "POWER_OFF", 0,0,0,0); 3109 t->flags &= ~F_POWER; 3110 if (!(t->flags & F_NODEV)) 3111 t->flags |= F_NODEV|F_CCONNECT|F_ROOTINTR; 3112 /* for x68k Nereid USB controller */ 3113 if (sc->sc_enable_power && (t->flags & F_REALPOWER)) { 3114 t->flags &= ~F_REALPOWER; 3115 sc->sc_enable_power(sc, POWER_OFF); 3116 } 3117 slhci_intrchange(sc, 0); 3118 slhci_drain(sc); 3119 } else if (what == UHF_C_PORT_CONNECTION) { 3120 t->flags &= ~F_CCONNECT; 3121 } else if (what == UHF_C_PORT_RESET) { 3122 t->flags &= ~F_CRESET; 3123 } else if (what == UHF_PORT_ENABLE) { 3124 slhci_drain(sc); 3125 } else if (what != UHF_PORT_SUSPEND) { 3126 DDOLOG("ClrPortFeatERR:value=%#.4x", what, 0,0,0); 3127 error = USBD_IOERROR; 3128 } 3129 3130 return error; 3131 } 3132 3133 static usbd_status 3134 slhci_set_feature(struct slhci_softc *sc, unsigned int what) 3135 { 3136 struct slhci_transfers *t; 3137 uint8_t r; 3138 3139 t = &sc->sc_transfers; 3140 3141 SLHCI_LOCKASSERT(sc, locked, unlocked); 3142 3143 if (what == UHF_PORT_RESET) { 3144 if (!(t->flags & F_ACTIVE)) { 3145 DDOLOG("SET PORT_RESET when not ACTIVE!", 3146 0,0,0,0); 3147 return USBD_INVAL; 3148 } 3149 if (!(t->flags & F_POWER)) { 3150 DDOLOG("SET PORT_RESET without PORT_POWER! flags %p", 3151 t->flags, 0,0,0); 3152 return USBD_INVAL; 3153 } 3154 if (t->flags & F_RESET) 3155 return USBD_NORMAL_COMPLETION; 3156 DLOG(D_MSG, "RESET flags %#x", t->flags, 0,0,0); 3157 slhci_intrchange(sc, 0); 3158 slhci_drain(sc); 3159 slhci_write(sc, SL11_CTRL, SL11_CTRL_RESETENGINE); 3160 /* usb spec says delay >= 10ms, app note 50ms */ 3161 start_cc_time(&t_delay, 50000); 3162 if (sc->sc_bus.use_polling) { 3163 DELAY(50000); 3164 slhci_reset(sc); 3165 } else { 3166 t->flags |= F_RESET; 3167 callout_schedule(&sc->sc_timer, max(mstohz(50), 2)); 3168 } 3169 } else if (what == UHF_PORT_SUSPEND) { 3170 printf("%s: USB Suspend not implemented!\n", SC_NAME(sc)); 3171 DDOLOG("%s: USB Suspend not implemented!\n", SC_NAME(sc), 3172 0,0,0); 3173 } else if (what == UHF_PORT_POWER) { 3174 DLOG(D_MSG, "PORT_POWER", 0,0,0,0); 3175 /* for x68k Nereid USB controller */ 3176 if (!(t->flags & F_ACTIVE)) 3177 return USBD_INVAL; 3178 if (t->flags & F_POWER) 3179 return USBD_NORMAL_COMPLETION; 3180 if (!(t->flags & F_REALPOWER)) { 3181 if (sc->sc_enable_power) 3182 sc->sc_enable_power(sc, POWER_ON); 3183 t->flags |= F_REALPOWER; 3184 } 3185 t->flags |= F_POWER; 3186 r = slhci_read(sc, SL11_ISR); 3187 if (r & SL11_ISR_INSERT) 3188 slhci_write(sc, SL11_ISR, SL11_ISR_INSERT); 3189 if (r & SL11_ISR_NODEV) { 3190 slhci_intrchange(sc, SL11_IER_INSERT); 3191 t->flags |= F_NODEV; 3192 } else { 3193 t->flags &= ~F_NODEV; 3194 t->flags |= F_CCONNECT|F_ROOTINTR; 3195 } 3196 } else { 3197 DDOLOG("SetPortFeatERR=%#.8x", what, 0,0,0); 3198 return USBD_IOERROR; 3199 } 3200 3201 return USBD_NORMAL_COMPLETION; 3202 } 3203 3204 static void 3205 slhci_get_status(struct slhci_softc *sc, usb_port_status_t *ps) 3206 { 3207 struct slhci_transfers *t; 3208 unsigned int status, change; 3209 3210 t = &sc->sc_transfers; 3211 3212 SLHCI_LOCKASSERT(sc, locked, unlocked); 3213 3214 /* We do not have a way to detect over current or bable and 3215 * suspend is currently not implemented, so connect and reset 3216 * are the only changes that need to be reported. */ 3217 change = 0; 3218 if (t->flags & F_CCONNECT) 3219 change |= UPS_C_CONNECT_STATUS; 3220 if (t->flags & F_CRESET) 3221 change |= UPS_C_PORT_RESET; 3222 3223 status = 0; 3224 if (!(t->flags & F_NODEV)) 3225 status |= UPS_CURRENT_CONNECT_STATUS; 3226 if (!(t->flags & F_UDISABLED)) 3227 status |= UPS_PORT_ENABLED; 3228 if (t->flags & F_RESET) 3229 status |= UPS_RESET; 3230 if (t->flags & F_POWER) 3231 status |= UPS_PORT_POWER; 3232 if (t->flags & F_LOWSPEED) 3233 status |= UPS_LOW_SPEED; 3234 USETW(ps->wPortStatus, status); 3235 USETW(ps->wPortChange, change); 3236 DLOG(D_ROOT, "status=%#.4x, change=%#.4x", status, change, 0,0); 3237 } 3238 3239 static usbd_status 3240 slhci_root(struct slhci_softc *sc, struct slhci_pipe *spipe, struct usbd_xfer 3241 *xfer) 3242 { 3243 struct slhci_transfers *t; 3244 usb_device_request_t *req; 3245 unsigned int len, value, index, actlen, type; 3246 uint8_t *buf; 3247 usbd_status error; 3248 3249 t = &sc->sc_transfers; 3250 buf = NULL; 3251 3252 LK_SLASSERT(spipe != NULL && xfer != NULL, sc, spipe, xfer, return 3253 USBD_CANCELLED); 3254 3255 DLOG(D_TRACE, "%s start", pnames(SLHCI_XFER_TYPE(xfer)), 0,0,0); 3256 SLHCI_LOCKASSERT(sc, locked, unlocked); 3257 3258 if (spipe->ptype == PT_ROOT_INTR) { 3259 LK_SLASSERT(t->rootintr == NULL, sc, spipe, xfer, return 3260 USBD_CANCELLED); 3261 t->rootintr = xfer; 3262 if (t->flags & F_CHANGE) 3263 t->flags |= F_ROOTINTR; 3264 return USBD_IN_PROGRESS; 3265 } 3266 3267 error = USBD_IOERROR; /* XXX should be STALL */ 3268 actlen = 0; 3269 req = &xfer->request; 3270 3271 len = UGETW(req->wLength); 3272 value = UGETW(req->wValue); 3273 index = UGETW(req->wIndex); 3274 3275 type = req->bmRequestType; 3276 3277 if (len) 3278 buf = KERNADDR(&xfer->dmabuf, 0); 3279 3280 SLHCI_DEXEC(D_TRACE, slhci_log_req_hub(req)); 3281 3282 /* 3283 * USB requests for hubs have two basic types, standard and class. 3284 * Each could potentially have recipients of device, interface, 3285 * endpoint, or other. For the hub class, CLASS_OTHER means the port 3286 * and CLASS_DEVICE means the hub. For standard requests, OTHER 3287 * is not used. Standard request are described in section 9.4 of the 3288 * standard, hub class requests in 11.16. Each request is either read 3289 * or write. 3290 * 3291 * Clear Feature, Set Feature, and Status are defined for each of the 3292 * used recipients. Get Descriptor and Set Descriptor are defined for 3293 * both standard and hub class types with different descriptors. 3294 * Other requests have only one defined recipient and type. These 3295 * include: Get/Set Address, Get/Set Configuration, Get/Set Interface, 3296 * and Synch Frame for standard requests and Get Bus State for hub 3297 * class. 3298 * 3299 * When a device is first powered up it has address 0 until the 3300 * address is set. 3301 * 3302 * Hubs are only allowed to support one interface and may not have 3303 * isochronous endpoints. The results of the related requests are 3304 * undefined. 3305 * 3306 * The standard requires invalid or unsupported requests to return 3307 * STALL in the data stage, however this does not work well with 3308 * current error handling. XXX 3309 * 3310 * Some unsupported fields: 3311 * Clear Hub Feature is for C_HUB_LOCAL_POWER and C_HUB_OVER_CURRENT 3312 * Set Device Features is for ENDPOINT_HALT and DEVICE_REMOTE_WAKEUP 3313 * Get Bus State is optional sample of D- and D+ at EOF2 3314 */ 3315 3316 switch (req->bRequest) { 3317 /* Write Requests */ 3318 case UR_CLEAR_FEATURE: 3319 if (type == UT_WRITE_CLASS_OTHER) { 3320 if (index == 1 /* Port */) 3321 error = slhci_clear_feature(sc, value); 3322 else 3323 DLOG(D_ROOT, "Clear Port Feature " 3324 "index = %#.4x", index, 0,0,0); 3325 } 3326 break; 3327 case UR_SET_FEATURE: 3328 if (type == UT_WRITE_CLASS_OTHER) { 3329 if (index == 1 /* Port */) 3330 error = slhci_set_feature(sc, value); 3331 else 3332 DLOG(D_ROOT, "Set Port Feature " 3333 "index = %#.4x", index, 0,0,0); 3334 } else if (type != UT_WRITE_CLASS_DEVICE) 3335 DLOG(D_ROOT, "Set Device Feature " 3336 "ENDPOINT_HALT or DEVICE_REMOTE_WAKEUP " 3337 "not supported", 0,0,0,0); 3338 break; 3339 case UR_SET_ADDRESS: 3340 if (type == UT_WRITE_DEVICE) { 3341 DLOG(D_ROOT, "Set Address %#.4x", value, 0,0,0); 3342 if (value < USB_MAX_DEVICES) { 3343 t->rootaddr = value; 3344 error = USBD_NORMAL_COMPLETION; 3345 } 3346 } 3347 break; 3348 case UR_SET_CONFIG: 3349 if (type == UT_WRITE_DEVICE) { 3350 DLOG(D_ROOT, "Set Config %#.4x", value, 0,0,0); 3351 if (value == 0 || value == 1) { 3352 t->rootconf = value; 3353 error = USBD_NORMAL_COMPLETION; 3354 } 3355 } 3356 break; 3357 /* Read Requests */ 3358 case UR_GET_STATUS: 3359 if (type == UT_READ_CLASS_OTHER) { 3360 if (index == 1 /* Port */ && len == /* XXX >=? */ 3361 sizeof(usb_port_status_t)) { 3362 slhci_get_status(sc, (usb_port_status_t *) 3363 buf); 3364 actlen = sizeof(usb_port_status_t); 3365 error = USBD_NORMAL_COMPLETION; 3366 } else 3367 DLOG(D_ROOT, "Get Port Status index = %#.4x " 3368 "len = %#.4x", index, len, 0,0); 3369 } else if (type == UT_READ_CLASS_DEVICE) { /* XXX index? */ 3370 if (len == sizeof(usb_hub_status_t)) { 3371 DLOG(D_ROOT, "Get Hub Status", 3372 0,0,0,0); 3373 actlen = sizeof(usb_hub_status_t); 3374 memset(buf, 0, actlen); 3375 error = USBD_NORMAL_COMPLETION; 3376 } else 3377 DLOG(D_ROOT, "Get Hub Status bad len %#.4x", 3378 len, 0,0,0); 3379 } else if (type == UT_READ_DEVICE) { 3380 if (len >= 2) { 3381 USETW(((usb_status_t *)buf)->wStatus, UDS_SELF_POWERED); 3382 actlen = 2; 3383 error = USBD_NORMAL_COMPLETION; 3384 } 3385 } else if (type == (UT_READ_INTERFACE|UT_READ_ENDPOINT)) { 3386 if (len >= 2) { 3387 USETW(((usb_status_t *)buf)->wStatus, 0); 3388 actlen = 2; 3389 error = USBD_NORMAL_COMPLETION; 3390 } 3391 } 3392 break; 3393 case UR_GET_CONFIG: 3394 if (type == UT_READ_DEVICE) { 3395 DLOG(D_ROOT, "Get Config", 0,0,0,0); 3396 if (len > 0) { 3397 *buf = t->rootconf; 3398 actlen = 1; 3399 error = USBD_NORMAL_COMPLETION; 3400 } 3401 } 3402 break; 3403 case UR_GET_INTERFACE: 3404 if (type == UT_READ_INTERFACE) { 3405 if (len > 0) { 3406 *buf = 0; 3407 actlen = 1; 3408 error = USBD_NORMAL_COMPLETION; 3409 } 3410 } 3411 break; 3412 case UR_GET_DESCRIPTOR: 3413 if (type == UT_READ_DEVICE) { 3414 /* value is type (&0xff00) and index (0xff) */ 3415 if (value == (UDESC_DEVICE<<8)) { 3416 actlen = min(len, sizeof(slhci_devd)); 3417 memcpy(buf, &slhci_devd, actlen); 3418 error = USBD_NORMAL_COMPLETION; 3419 } else if (value == (UDESC_CONFIG<<8)) { 3420 actlen = min(len, sizeof(slhci_confd)); 3421 memcpy(buf, &slhci_confd, actlen); 3422 if (actlen > offsetof(usb_config_descriptor_t, 3423 bMaxPower)) 3424 ((usb_config_descriptor_t *) 3425 buf)->bMaxPower = t->max_current; 3426 /* 2 mA units */ 3427 error = USBD_NORMAL_COMPLETION; 3428 } else if (value == (UDESC_STRING<<8)) { 3429 /* language table XXX */ 3430 } else if (value == ((UDESC_STRING<<8)|1)) { 3431 /* Vendor */ 3432 actlen = slhci_str((usb_string_descriptor_t *) 3433 buf, len, "ScanLogic/Cypress"); 3434 error = USBD_NORMAL_COMPLETION; 3435 } else if (value == ((UDESC_STRING<<8)|2)) { 3436 /* Product */ 3437 actlen = slhci_str((usb_string_descriptor_t *) 3438 buf, len, "SL811HS/T root hub"); 3439 error = USBD_NORMAL_COMPLETION; 3440 } else 3441 DDOLOG("Unknown Get Descriptor %#.4x", 3442 value, 0,0,0); 3443 } else if (type == UT_READ_CLASS_DEVICE) { 3444 /* Descriptor number is 0 */ 3445 if (value == (UDESC_HUB<<8)) { 3446 actlen = min(len, sizeof(slhci_hubd)); 3447 memcpy(buf, &slhci_hubd, actlen); 3448 if (actlen > offsetof(usb_config_descriptor_t, 3449 bMaxPower)) 3450 ((usb_hub_descriptor_t *) 3451 buf)->bHubContrCurrent = 500 - 3452 t->max_current; 3453 error = USBD_NORMAL_COMPLETION; 3454 } else 3455 DDOLOG("Unknown Get Hub Descriptor %#.4x", 3456 value, 0,0,0); 3457 } 3458 break; 3459 } 3460 3461 if (error == USBD_NORMAL_COMPLETION) 3462 xfer->actlen = actlen; 3463 xfer->status = error; 3464 KASSERT(spipe->xfer == NULL); 3465 spipe->xfer = xfer; 3466 enter_callback(t, spipe); 3467 3468 return USBD_IN_PROGRESS; 3469 } 3470 3471 /* End in lock functions. Start debug functions. */ 3472 3473 #ifdef SLHCI_DEBUG 3474 void 3475 slhci_log_buffer(struct usbd_xfer *xfer) 3476 { 3477 u_char *buf; 3478 3479 if(xfer->length > 0 && 3480 UE_GET_DIR(xfer->pipe->endpoint->edesc->bEndpointAddress) == 3481 UE_DIR_IN) { 3482 buf = KERNADDR(&xfer->dmabuf, 0); 3483 DDOLOGBUF(buf, xfer->actlen); 3484 DDOLOG("len %d actlen %d short %d", xfer->length, 3485 xfer->actlen, xfer->length - xfer->actlen, 0); 3486 } 3487 } 3488 3489 void 3490 slhci_log_req(usb_device_request_t *r) 3491 { 3492 static const char *xmes[]={ 3493 "GETSTAT", 3494 "CLRFEAT", 3495 "res", 3496 "SETFEAT", 3497 "res", 3498 "SETADDR", 3499 "GETDESC", 3500 "SETDESC", 3501 "GETCONF", 3502 "SETCONF", 3503 "GETIN/F", 3504 "SETIN/F", 3505 "SYNC_FR", 3506 "UNKNOWN" 3507 }; 3508 int req, mreq, type, value, index, len; 3509 3510 req = r->bRequest; 3511 mreq = (req > 13) ? 13 : req; 3512 type = r->bmRequestType; 3513 value = UGETW(r->wValue); 3514 index = UGETW(r->wIndex); 3515 len = UGETW(r->wLength); 3516 3517 DDOLOG("request: %s %#x", xmes[mreq], type, 0,0); 3518 DDOLOG("request: r=%d,v=%d,i=%d,l=%d ", req, value, index, len); 3519 } 3520 3521 void 3522 slhci_log_req_hub(usb_device_request_t *r) 3523 { 3524 static const struct { 3525 int req; 3526 int type; 3527 const char *str; 3528 } conf[] = { 3529 { 1, 0x20, "ClrHubFeat" }, 3530 { 1, 0x23, "ClrPortFeat" }, 3531 { 2, 0xa3, "GetBusState" }, 3532 { 6, 0xa0, "GetHubDesc" }, 3533 { 0, 0xa0, "GetHubStat" }, 3534 { 0, 0xa3, "GetPortStat" }, 3535 { 7, 0x20, "SetHubDesc" }, 3536 { 3, 0x20, "SetHubFeat" }, 3537 { 3, 0x23, "SetPortFeat" }, 3538 {-1, 0, NULL}, 3539 }; 3540 int i; 3541 int value, index, len; 3542 const char *str; 3543 3544 value = UGETW(r->wValue); 3545 index = UGETW(r->wIndex); 3546 len = UGETW(r->wLength); 3547 for (i = 0; ; i++) { 3548 if (conf[i].req == -1 ) { 3549 slhci_log_req(r); 3550 return; 3551 } 3552 if (r->bmRequestType == conf[i].type && r->bRequest == conf[i].req) { 3553 str = conf[i].str; 3554 break; 3555 } 3556 } 3557 DDOLOG("hub request: %s v=%d,i=%d,l=%d ", str, value, index, len); 3558 } 3559 3560 void 3561 slhci_log_dumpreg(void) 3562 { 3563 uint8_t r; 3564 unsigned int aaddr, alen, baddr, blen; 3565 static u_char buf[240]; 3566 3567 r = slhci_read(ssc, SL11_E0CTRL); 3568 DDOLOG("USB A Host Control = %#.2x", r, 0,0,0); 3569 DDOLOGFLAG8("E0CTRL=", r, "Preamble", "Data Toggle", "SOF Sync", 3570 "ISOC", "res", "Out", "Enable", "Arm"); 3571 aaddr = slhci_read(ssc, SL11_E0ADDR); 3572 DDOLOG("USB A Base Address = %u", aaddr, 0,0,0); 3573 alen = slhci_read(ssc, SL11_E0LEN); 3574 DDOLOG("USB A Length = %u", alen, 0,0,0); 3575 r = slhci_read(ssc, SL11_E0STAT); 3576 DDOLOG("USB A Status = %#.2x", r, 0,0,0); 3577 DDOLOGFLAG8("E0STAT=", r, "STALL", "NAK", "Overflow", "Setup", 3578 "Data Toggle", "Timeout", "Error", "ACK"); 3579 r = slhci_read(ssc, SL11_E0CONT); 3580 DDOLOG("USB A Remaining or Overflow Length = %u", r, 0,0,0); 3581 r = slhci_read(ssc, SL11_E1CTRL); 3582 DDOLOG("USB B Host Control = %#.2x", r, 0,0,0); 3583 DDOLOGFLAG8("E1CTRL=", r, "Preamble", "Data Toggle", "SOF Sync", 3584 "ISOC", "res", "Out", "Enable", "Arm"); 3585 baddr = slhci_read(ssc, SL11_E1ADDR); 3586 DDOLOG("USB B Base Address = %u", baddr, 0,0,0); 3587 blen = slhci_read(ssc, SL11_E1LEN); 3588 DDOLOG("USB B Length = %u", blen, 0,0,0); 3589 r = slhci_read(ssc, SL11_E1STAT); 3590 DDOLOG("USB B Status = %#.2x", r, 0,0,0); 3591 DDOLOGFLAG8("E1STAT=", r, "STALL", "NAK", "Overflow", "Setup", 3592 "Data Toggle", "Timeout", "Error", "ACK"); 3593 r = slhci_read(ssc, SL11_E1CONT); 3594 DDOLOG("USB B Remaining or Overflow Length = %u", r, 0,0,0); 3595 3596 r = slhci_read(ssc, SL11_CTRL); 3597 DDOLOG("Control = %#.2x", r, 0,0,0); 3598 DDOLOGFLAG8("CTRL=", r, "res", "Suspend", "LOW Speed", 3599 "J-K State Force", "Reset", "res", "res", "SOF"); 3600 r = slhci_read(ssc, SL11_IER); 3601 DDOLOG("Interrupt Enable = %#.2x", r, 0,0,0); 3602 DDOLOGFLAG8("IER=", r, "D+ **IER!**", "Device Detect/Resume", 3603 "Insert/Remove", "SOF", "res", "res", "USBB", "USBA"); 3604 r = slhci_read(ssc, SL11_ISR); 3605 DDOLOG("Interrupt Status = %#.2x", r, 0,0,0); 3606 DDOLOGFLAG8("ISR=", r, "D+", "Device Detect/Resume", 3607 "Insert/Remove", "SOF", "res", "res", "USBB", "USBA"); 3608 r = slhci_read(ssc, SL11_REV); 3609 DDOLOG("Revision = %#.2x", r, 0,0,0); 3610 r = slhci_read(ssc, SL811_CSOF); 3611 DDOLOG("SOF Counter = %#.2x", r, 0,0,0); 3612 3613 if (alen && aaddr >= SL11_BUFFER_START && aaddr < SL11_BUFFER_END && 3614 alen <= SL11_MAX_PACKET_SIZE && aaddr + alen <= SL11_BUFFER_END) { 3615 slhci_read_multi(ssc, aaddr, buf, alen); 3616 DDOLOG("USBA Buffer: start %u len %u", aaddr, alen, 0,0); 3617 DDOLOGBUF(buf, alen); 3618 } else if (alen) 3619 DDOLOG("USBA Buffer Invalid", 0,0,0,0); 3620 3621 if (blen && baddr >= SL11_BUFFER_START && baddr < SL11_BUFFER_END && 3622 blen <= SL11_MAX_PACKET_SIZE && baddr + blen <= SL11_BUFFER_END) { 3623 slhci_read_multi(ssc, baddr, buf, blen); 3624 DDOLOG("USBB Buffer: start %u len %u", baddr, blen, 0,0); 3625 DDOLOGBUF(buf, blen); 3626 } else if (blen) 3627 DDOLOG("USBB Buffer Invalid", 0,0,0,0); 3628 } 3629 3630 void 3631 slhci_log_xfer(struct usbd_xfer *xfer) 3632 { 3633 DDOLOG("xfer: length=%u, actlen=%u, flags=%#x, timeout=%u,", 3634 xfer->length, xfer->actlen, xfer->flags, xfer->timeout); 3635 if (xfer->dmabuf.block) 3636 DDOLOG("buffer=%p", KERNADDR(&xfer->dmabuf, 0), 0,0,0); 3637 slhci_log_req_hub(&xfer->request); 3638 } 3639 3640 void 3641 slhci_log_spipe(struct slhci_pipe *spipe) 3642 { 3643 DDOLOG("spipe %p onlists: %s %s %s", spipe, gcq_onlist(&spipe->ap) ? 3644 "AP" : "", gcq_onlist(&spipe->to) ? "TO" : "", 3645 gcq_onlist(&spipe->xq) ? "XQ" : ""); 3646 DDOLOG("spipe: xfer %p buffer %p pflags %#x ptype %s", 3647 spipe->xfer, spipe->buffer, spipe->pflags, pnames(spipe->ptype)); 3648 } 3649 3650 void 3651 slhci_print_intr(void) 3652 { 3653 unsigned int ier, isr; 3654 ier = slhci_read(ssc, SL11_IER); 3655 isr = slhci_read(ssc, SL11_ISR); 3656 printf("IER: %#x ISR: %#x \n", ier, isr); 3657 } 3658 3659 #if 0 3660 void 3661 slhci_log_sc() 3662 { 3663 struct slhci_transfers *t; 3664 int i; 3665 3666 t = &ssc->sc_transfers; 3667 3668 DDOLOG("Flags=%#x", t->flags, 0,0,0); 3669 DDOLOG("a = %p Alen=%d b = %p Blen=%d", t->spipe[0], t->len[0], 3670 t->spipe[1], t->len[1]); 3671 3672 for (i=0; i<=Q_MAX; i++) 3673 DDOLOG("Q %d: %p", i, gcq_first(&t->q[i]), 0,0); 3674 3675 DDOLOG("TIMED: %p", GCQ_ITEM(gcq_first(&t->to), 3676 struct slhci_pipe, to), 0,0,0); 3677 3678 DDOLOG("frame=%d rootintr=%p", t->frame, t->rootintr, 0,0); 3679 3680 DDOLOG("use_polling=%d intr_context=%d", ssc->sc_bus.use_polling, 3681 ssc->sc_bus.intr_context, 0,0); 3682 } 3683 3684 void 3685 slhci_log_slreq(struct slhci_pipe *r) 3686 { 3687 DDOLOG("next: %p", r->q.next.sqe_next, 0,0,0); 3688 DDOLOG("xfer: %p", r->xfer, 0,0,0); 3689 DDOLOG("buffer: %p", r->buffer, 0,0,0); 3690 DDOLOG("bustime: %u", r->bustime, 0,0,0); 3691 DDOLOG("control: %#x", r->control, 0,0,0); 3692 DDOLOGFLAG8("control=", r->control, "Preamble", "Data Toggle", 3693 "SOF Sync", "ISOC", "res", "Out", "Enable", "Arm"); 3694 DDOLOG("pid: %#x", r->tregs[PID], 0,0,0); 3695 DDOLOG("dev: %u", r->tregs[DEV], 0,0,0); 3696 DDOLOG("len: %u", r->tregs[LEN], 0,0,0); 3697 3698 if (r->xfer) 3699 slhci_log_xfer(r->xfer); 3700 } 3701 #endif 3702 #endif /* SLHCI_DEBUG */ 3703 /* End debug functions. */ 3704
Indexes created Mon Sep 29 15:09:53 GMT 2025