sl811hs.c revision 1.96
1 /* $NetBSD: sl811hs.c,v 1.96 2016/09/24 15:06:29 skrll Exp $ */ 2 3 /* 4 * Not (c) 2007 Matthew Orgass 5 * This file is public domain, meaning anyone can make any use of part or all 6 * of this file including copying into other works without credit. Any use, 7 * modified or not, is solely the responsibility of the user. If this file is 8 * part of a collection then use in the collection is governed by the terms of 9 * the collection. 10 */ 11 12 /* 13 * Cypress/ScanLogic SL811HS/T USB Host Controller 14 * Datasheet, Errata, and App Note available at www.cypress.com 15 * 16 * Uses: Ratoc CFU1U PCMCIA USB Host Controller, Nereid X68k USB HC, ISA 17 * HCs. The Ratoc CFU2 uses a different chip. 18 * 19 * This chip puts the serial in USB. It implements USB by means of an eight 20 * bit I/O interface. It can be used for ISA, PCMCIA/CF, parallel port, 21 * serial port, or any eight bit interface. It has 256 bytes of memory, the 22 * first 16 of which are used for register access. There are two sets of 23 * registers for sending individual bus transactions. Because USB is polled, 24 * this organization means that some amount of card access must often be made 25 * when devices are attached, even if when they are not directly being used. 26 * A per-ms frame interrupt is necessary and many devices will poll with a 27 * per-frame bulk transfer. 28 * 29 * It is possible to write a little over two bytes to the chip (auto 30 * incremented) per full speed byte time on the USB. Unfortunately, 31 * auto-increment does not work reliably so write and bus speed is 32 * approximately the same for full speed devices. 33 * 34 * In addition to the 240 byte packet size limit for isochronous transfers, 35 * this chip has no means of determining the current frame number other than 36 * getting all 1ms SOF interrupts, which is not always possible even on a fast 37 * system. Isochronous transfers guarantee that transfers will never be 38 * retried in a later frame, so this can cause problems with devices beyond 39 * the difficulty in actually performing the transfer most frames. I tried 40 * implementing isoc transfers and was able to play CD-derrived audio via an 41 * iMic on a 2GHz PC, however it would still be interrupted at times and 42 * once interrupted, would stay out of sync. All isoc support has been 43 * removed. 44 * 45 * BUGS: all chip revisions have problems with low speed devices through hubs. 46 * The chip stops generating SOF with hubs that send SE0 during SOF. See 47 * comment in dointr(). All performance enhancing features of this chip seem 48 * not to work properly, most confirmed buggy in errata doc. 49 * 50 */ 51 52 /* 53 * The hard interrupt is the main entry point. Start, callbacks, and repeat 54 * are the only others called frequently. 55 * 56 * Since this driver attaches to pcmcia, card removal at any point should be 57 * expected and not cause panics or infinite loops. 58 */ 59 60 /* 61 * XXX TODO: 62 * copy next output packet while transfering 63 * usb suspend 64 * could keep track of known values of all buffer space? 65 * combined print/log function for errors 66 * 67 * ub_usepolling support is untested and may not work 68 */ 69 70 #include <sys/cdefs.h> 71 __KERNEL_RCSID(0, "$NetBSD: sl811hs.c,v 1.96 2016/09/24 15:06:29 skrll Exp $"); 72 73 #ifdef _KERNEL_OPT 74 #include "opt_slhci.h" 75 #include "opt_usb.h" 76 #endif 77 78 #include <sys/param.h> 79 80 #include <sys/bus.h> 81 #include <sys/cpu.h> 82 #include <sys/device.h> 83 #include <sys/gcq.h> 84 #include <sys/intr.h> 85 #include <sys/kernel.h> 86 #include <sys/kmem.h> 87 #include <sys/proc.h> 88 #include <sys/queue.h> 89 #include <sys/sysctl.h> 90 #include <sys/systm.h> 91 92 #include <dev/usb/usb.h> 93 #include <dev/usb/usbdi.h> 94 #include <dev/usb/usbdivar.h> 95 #include <dev/usb/usbhist.h> 96 #include <dev/usb/usb_mem.h> 97 #include <dev/usb/usbdevs.h> 98 #include <dev/usb/usbroothub.h> 99 100 #include <dev/ic/sl811hsreg.h> 101 #include <dev/ic/sl811hsvar.h> 102 103 #define Q_CB 0 /* Control/Bulk */ 104 #define Q_NEXT_CB 1 105 #define Q_MAX_XFER Q_CB 106 #define Q_CALLBACKS 2 107 #define Q_MAX Q_CALLBACKS 108 109 #define F_AREADY (0x00000001) 110 #define F_BREADY (0x00000002) 111 #define F_AINPROG (0x00000004) 112 #define F_BINPROG (0x00000008) 113 #define F_LOWSPEED (0x00000010) 114 #define F_UDISABLED (0x00000020) /* Consider disabled for USB */ 115 #define F_NODEV (0x00000040) 116 #define F_ROOTINTR (0x00000080) 117 #define F_REALPOWER (0x00000100) /* Actual power state */ 118 #define F_POWER (0x00000200) /* USB reported power state */ 119 #define F_ACTIVE (0x00000400) 120 #define F_CALLBACK (0x00000800) /* Callback scheduled */ 121 #define F_SOFCHECK1 (0x00001000) 122 #define F_SOFCHECK2 (0x00002000) 123 #define F_CRESET (0x00004000) /* Reset done not reported */ 124 #define F_CCONNECT (0x00008000) /* Connect change not reported */ 125 #define F_RESET (0x00010000) 126 #define F_ISOC_WARNED (0x00020000) 127 #define F_LSVH_WARNED (0x00040000) 128 129 #define F_DISABLED (F_NODEV|F_UDISABLED) 130 #define F_CHANGE (F_CRESET|F_CCONNECT) 131 132 #ifdef SLHCI_TRY_LSVH 133 unsigned int slhci_try_lsvh = 1; 134 #else 135 unsigned int slhci_try_lsvh = 0; 136 #endif 137 138 #define ADR 0 139 #define LEN 1 140 #define PID 2 141 #define DEV 3 142 #define STAT 2 143 #define CONT 3 144 145 #define A 0 146 #define B 1 147 148 static const uint8_t slhci_tregs[2][4] = 149 {{SL11_E0ADDR, SL11_E0LEN, SL11_E0PID, SL11_E0DEV }, 150 {SL11_E1ADDR, SL11_E1LEN, SL11_E1PID, SL11_E1DEV }}; 151 152 #define PT_ROOT_CTRL 0 153 #define PT_ROOT_INTR 1 154 #define PT_CTRL_SETUP 2 155 #define PT_CTRL_DATA 3 156 #define PT_CTRL_STATUS 4 157 #define PT_INTR 5 158 #define PT_BULK 6 159 #define PT_MAX 6 160 161 #ifdef SLHCI_DEBUG 162 #define SLHCI_MEM_ACCOUNTING 163 #endif 164 165 /* 166 * Maximum allowable reserved bus time. Since intr/isoc transfers have 167 * unconditional priority, this is all that ensures control and bulk transfers 168 * get a chance. It is a single value for all frames since all transfers can 169 * use multiple consecutive frames if an error is encountered. Note that it 170 * is not really possible to fill the bus with transfers, so this value should 171 * be on the low side. Defaults to giving a warning unless SLHCI_NO_OVERTIME 172 * is defined. Full time is 12000 - END_BUSTIME. 173 */ 174 #ifndef SLHCI_RESERVED_BUSTIME 175 #define SLHCI_RESERVED_BUSTIME 5000 176 #endif 177 178 /* 179 * Rate for "exceeds reserved bus time" warnings (default) or errors. 180 * Warnings only happen when an endpoint open causes the time to go above 181 * SLHCI_RESERVED_BUSTIME, not if it is already above. 182 */ 183 #ifndef SLHCI_OVERTIME_WARNING_RATE 184 #define SLHCI_OVERTIME_WARNING_RATE { 60, 0 } /* 60 seconds */ 185 #endif 186 static const struct timeval reserved_warn_rate = SLHCI_OVERTIME_WARNING_RATE; 187 188 /* Rate for overflow warnings */ 189 #ifndef SLHCI_OVERFLOW_WARNING_RATE 190 #define SLHCI_OVERFLOW_WARNING_RATE { 60, 0 } /* 60 seconds */ 191 #endif 192 static const struct timeval overflow_warn_rate = SLHCI_OVERFLOW_WARNING_RATE; 193 194 /* 195 * For EOF, the spec says 42 bit times, plus (I think) a possible hub skew of 196 * 20 bit times. By default leave 66 bit times to start the transfer beyond 197 * the required time. Units are full-speed bit times (a bit over 5us per 64). 198 * Only multiples of 64 are significant. 199 */ 200 #define SLHCI_STANDARD_END_BUSTIME 128 201 #ifndef SLHCI_EXTRA_END_BUSTIME 202 #define SLHCI_EXTRA_END_BUSTIME 0 203 #endif 204 205 #define SLHCI_END_BUSTIME (SLHCI_STANDARD_END_BUSTIME+SLHCI_EXTRA_END_BUSTIME) 206 207 /* 208 * This is an approximation of the USB worst-case timings presented on p. 54 of 209 * the USB 1.1 spec translated to full speed bit times. 210 * FS = full speed with handshake, FSII = isoc in, FSIO = isoc out, 211 * FSI = isoc (worst case), LS = low speed 212 */ 213 #define SLHCI_FS_CONST 114 214 #define SLHCI_FSII_CONST 92 215 #define SLHCI_FSIO_CONST 80 216 #define SLHCI_FSI_CONST 92 217 #define SLHCI_LS_CONST 804 218 #ifndef SLHCI_PRECICE_BUSTIME 219 /* 220 * These values are < 3% too high (compared to the multiply and divide) for 221 * max sized packets. 222 */ 223 #define SLHCI_FS_DATA_TIME(len) (((u_int)(len)<<3)+(len)+((len)>>1)) 224 #define SLHCI_LS_DATA_TIME(len) (((u_int)(len)<<6)+((u_int)(len)<<4)) 225 #else 226 #define SLHCI_FS_DATA_TIME(len) (56*(len)/6) 227 #define SLHCI_LS_DATA_TIME(len) (449*(len)/6) 228 #endif 229 230 /* 231 * Set SLHCI_WAIT_SIZE to the desired maximum size of single FS transfer 232 * to poll for after starting a transfer. 64 gets all full speed transfers. 233 * Note that even if 0 polling will occur if data equal or greater than the 234 * transfer size is copied to the chip while the transfer is in progress. 235 * Setting SLHCI_WAIT_TIME to -12000 will disable polling. 236 */ 237 #ifndef SLHCI_WAIT_SIZE 238 #define SLHCI_WAIT_SIZE 8 239 #endif 240 #ifndef SLHCI_WAIT_TIME 241 #define SLHCI_WAIT_TIME (SLHCI_FS_CONST + \ 242 SLHCI_FS_DATA_TIME(SLHCI_WAIT_SIZE)) 243 #endif 244 const int slhci_wait_time = SLHCI_WAIT_TIME; 245 246 #ifndef SLHCI_MAX_RETRIES 247 #define SLHCI_MAX_RETRIES 3 248 #endif 249 250 /* Check IER values for corruption after this many unrecognized interrupts. */ 251 #ifndef SLHCI_IER_CHECK_FREQUENCY 252 #ifdef SLHCI_DEBUG 253 #define SLHCI_IER_CHECK_FREQUENCY 1 254 #else 255 #define SLHCI_IER_CHECK_FREQUENCY 100 256 #endif 257 #endif 258 259 /* Note that buffer points to the start of the buffer for this transfer. */ 260 struct slhci_pipe { 261 struct usbd_pipe pipe; 262 struct usbd_xfer *xfer; /* xfer in progress */ 263 uint8_t *buffer; /* I/O buffer (if needed) */ 264 struct gcq ap; /* All pipes */ 265 struct gcq to; /* Timeout list */ 266 struct gcq xq; /* Xfer queues */ 267 unsigned int pflags; /* Pipe flags */ 268 #define PF_GONE (0x01) /* Pipe is on disabled device */ 269 #define PF_TOGGLE (0x02) /* Data toggle status */ 270 #define PF_LS (0x04) /* Pipe is low speed */ 271 #define PF_PREAMBLE (0x08) /* Needs preamble */ 272 Frame to_frame; /* Frame number for timeout */ 273 Frame frame; /* Frame number for intr xfer */ 274 Frame lastframe; /* Previous frame number for intr */ 275 uint16_t bustime; /* Worst case bus time usage */ 276 uint16_t newbustime[2]; /* new bustimes (see index below) */ 277 uint8_t tregs[4]; /* ADR, LEN, PID, DEV */ 278 uint8_t newlen[2]; /* 0 = short data, 1 = ctrl data */ 279 uint8_t newpid; /* for ctrl */ 280 uint8_t wantshort; /* last xfer must be short */ 281 uint8_t control; /* Host control register settings */ 282 uint8_t nerrs; /* Current number of errors */ 283 uint8_t ptype; /* Pipe type */ 284 }; 285 286 #define SLHCI_BUS2SC(bus) ((bus)->ub_hcpriv) 287 #define SLHCI_PIPE2SC(pipe) SLHCI_BUS2SC((pipe)->up_dev->ud_bus) 288 #define SLHCI_XFER2SC(xfer) SLHCI_BUS2SC((xfer)->ux_bus) 289 290 #define SLHCI_PIPE2SPIPE(pipe) ((struct slhci_pipe *)(pipe)) 291 #define SLHCI_XFER2SPIPE(xfer) SLHCI_PIPE2SPIPE((xfer)->ux_pipe) 292 293 #define SLHCI_XFER_TYPE(x) (SLHCI_XFER2SPIPE(xfer)->ptype) 294 295 #ifdef SLHCI_PROFILE_TRANSFER 296 #if defined(__mips__) 297 /* 298 * MIPS cycle counter does not directly count cpu cycles but is a different 299 * fraction of cpu cycles depending on the cpu. 300 */ 301 typedef uint32_t cc_type; 302 #define CC_TYPE_FMT "%u" 303 #define slhci_cc_set(x) __asm volatile ("mfc0 %[cc], $9\n\tnop\n\tnop\n\tnop" \ 304 : [cc] "=r"(x)) 305 #elif defined(__i386__) 306 typedef uint64_t cc_type; 307 #define CC_TYPE_FMT "%llu" 308 #define slhci_cc_set(x) __asm volatile ("rdtsc" : "=A"(x)) 309 #else 310 #error "SLHCI_PROFILE_TRANSFER not implemented on this MACHINE_ARCH (see sys/dev/ic/sl811hs.c)" 311 #endif 312 struct slhci_cc_time { 313 cc_type start; 314 cc_type stop; 315 unsigned int miscdata; 316 }; 317 #ifndef SLHCI_N_TIMES 318 #define SLHCI_N_TIMES 200 319 #endif 320 struct slhci_cc_times { 321 struct slhci_cc_time times[SLHCI_N_TIMES]; 322 int current; 323 int wraparound; 324 }; 325 326 static struct slhci_cc_times t_ab[2]; 327 static struct slhci_cc_times t_abdone; 328 static struct slhci_cc_times t_copy_to_dev; 329 static struct slhci_cc_times t_copy_from_dev; 330 static struct slhci_cc_times t_intr; 331 static struct slhci_cc_times t_lock; 332 static struct slhci_cc_times t_delay; 333 static struct slhci_cc_times t_hard_int; 334 static struct slhci_cc_times t_callback; 335 336 static inline void 337 start_cc_time(struct slhci_cc_times *times, unsigned int misc) { 338 times->times[times->current].miscdata = misc; 339 slhci_cc_set(times->times[times->current].start); 340 } 341 static inline void 342 stop_cc_time(struct slhci_cc_times *times) { 343 slhci_cc_set(times->times[times->current].stop); 344 if (++times->current >= SLHCI_N_TIMES) { 345 times->current = 0; 346 times->wraparound = 1; 347 } 348 } 349 350 void slhci_dump_cc_times(int); 351 352 void 353 slhci_dump_cc_times(int n) { 354 struct slhci_cc_times *times; 355 int i; 356 357 switch (n) { 358 default: 359 case 0: 360 printf("USBA start transfer to intr:\n"); 361 times = &t_ab[A]; 362 break; 363 case 1: 364 printf("USBB start transfer to intr:\n"); 365 times = &t_ab[B]; 366 break; 367 case 2: 368 printf("abdone:\n"); 369 times = &t_abdone; 370 break; 371 case 3: 372 printf("copy to device:\n"); 373 times = &t_copy_to_dev; 374 break; 375 case 4: 376 printf("copy from device:\n"); 377 times = &t_copy_from_dev; 378 break; 379 case 5: 380 printf("intr to intr:\n"); 381 times = &t_intr; 382 break; 383 case 6: 384 printf("lock to release:\n"); 385 times = &t_lock; 386 break; 387 case 7: 388 printf("delay time:\n"); 389 times = &t_delay; 390 break; 391 case 8: 392 printf("hard interrupt enter to exit:\n"); 393 times = &t_hard_int; 394 break; 395 case 9: 396 printf("callback:\n"); 397 times = &t_callback; 398 break; 399 } 400 401 if (times->wraparound) 402 for (i = times->current + 1; i < SLHCI_N_TIMES; i++) 403 printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT 404 " difference %8i miscdata %#x\n", 405 times->times[i].start, times->times[i].stop, 406 (int)(times->times[i].stop - 407 times->times[i].start), times->times[i].miscdata); 408 409 for (i = 0; i < times->current; i++) 410 printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT 411 " difference %8i miscdata %#x\n", times->times[i].start, 412 times->times[i].stop, (int)(times->times[i].stop - 413 times->times[i].start), times->times[i].miscdata); 414 } 415 #else 416 #define start_cc_time(x, y) 417 #define stop_cc_time(x) 418 #endif /* SLHCI_PROFILE_TRANSFER */ 419 420 typedef usbd_status (*LockCallFunc)(struct slhci_softc *, struct slhci_pipe 421 *, struct usbd_xfer *); 422 423 struct usbd_xfer * slhci_allocx(struct usbd_bus *, unsigned int); 424 void slhci_freex(struct usbd_bus *, struct usbd_xfer *); 425 static void slhci_get_lock(struct usbd_bus *, kmutex_t **); 426 427 usbd_status slhci_transfer(struct usbd_xfer *); 428 usbd_status slhci_start(struct usbd_xfer *); 429 usbd_status slhci_root_start(struct usbd_xfer *); 430 usbd_status slhci_open(struct usbd_pipe *); 431 432 static int slhci_roothub_ctrl(struct usbd_bus *, usb_device_request_t *, 433 void *, int); 434 435 /* 436 * slhci_supported_rev, slhci_preinit, slhci_attach, slhci_detach, 437 * slhci_activate 438 */ 439 440 void slhci_abort(struct usbd_xfer *); 441 void slhci_close(struct usbd_pipe *); 442 void slhci_clear_toggle(struct usbd_pipe *); 443 void slhci_poll(struct usbd_bus *); 444 void slhci_done(struct usbd_xfer *); 445 void slhci_void(void *); 446 447 /* lock entry functions */ 448 449 #ifdef SLHCI_MEM_ACCOUNTING 450 void slhci_mem_use(struct usbd_bus *, int); 451 #endif 452 453 void slhci_reset_entry(void *); 454 usbd_status slhci_lock_call(struct slhci_softc *, LockCallFunc, 455 struct slhci_pipe *, struct usbd_xfer *); 456 void slhci_start_entry(struct slhci_softc *, struct slhci_pipe *); 457 void slhci_callback_entry(void *arg); 458 void slhci_do_callback(struct slhci_softc *, struct usbd_xfer *); 459 460 /* slhci_intr */ 461 462 void slhci_main(struct slhci_softc *); 463 464 /* in lock functions */ 465 466 static void slhci_write(struct slhci_softc *, uint8_t, uint8_t); 467 static uint8_t slhci_read(struct slhci_softc *, uint8_t); 468 static void slhci_write_multi(struct slhci_softc *, uint8_t, uint8_t *, int); 469 static void slhci_read_multi(struct slhci_softc *, uint8_t, uint8_t *, int); 470 471 static void slhci_waitintr(struct slhci_softc *, int); 472 static int slhci_dointr(struct slhci_softc *); 473 static void slhci_abdone(struct slhci_softc *, int); 474 static void slhci_tstart(struct slhci_softc *); 475 static void slhci_dotransfer(struct slhci_softc *); 476 477 static void slhci_callback(struct slhci_softc *); 478 static void slhci_enter_xfer(struct slhci_softc *, struct slhci_pipe *); 479 static void slhci_enter_xfers(struct slhci_softc *); 480 static void slhci_queue_timed(struct slhci_softc *, struct slhci_pipe *); 481 static void slhci_xfer_timer(struct slhci_softc *, struct slhci_pipe *); 482 483 static void slhci_callback_schedule(struct slhci_softc *); 484 static void slhci_do_callback_schedule(struct slhci_softc *); 485 #if 0 486 void slhci_pollxfer(struct slhci_softc *, struct usbd_xfer *); /* XXX */ 487 #endif 488 489 static usbd_status slhci_do_poll(struct slhci_softc *, struct slhci_pipe *, 490 struct usbd_xfer *); 491 static usbd_status slhci_lsvh_warn(struct slhci_softc *, struct slhci_pipe *, 492 struct usbd_xfer *); 493 static usbd_status slhci_isoc_warn(struct slhci_softc *, struct slhci_pipe *, 494 struct usbd_xfer *); 495 static usbd_status slhci_open_pipe(struct slhci_softc *, struct slhci_pipe *, 496 struct usbd_xfer *); 497 static usbd_status slhci_close_pipe(struct slhci_softc *, struct slhci_pipe *, 498 struct usbd_xfer *); 499 static usbd_status slhci_do_abort(struct slhci_softc *, struct slhci_pipe *, 500 struct usbd_xfer *); 501 static usbd_status slhci_halt(struct slhci_softc *, struct slhci_pipe *, 502 struct usbd_xfer *); 503 504 static void slhci_intrchange(struct slhci_softc *, uint8_t); 505 static void slhci_drain(struct slhci_softc *); 506 static void slhci_reset(struct slhci_softc *); 507 static int slhci_reserve_bustime(struct slhci_softc *, struct slhci_pipe *, 508 int); 509 static void slhci_insert(struct slhci_softc *); 510 511 static usbd_status slhci_clear_feature(struct slhci_softc *, unsigned int); 512 static usbd_status slhci_set_feature(struct slhci_softc *, unsigned int); 513 static void slhci_get_status(struct slhci_softc *, usb_port_status_t *); 514 515 #define SLHCIHIST_FUNC() USBHIST_FUNC() 516 #define SLHCIHIST_CALLED() USBHIST_CALLED(slhcidebug) 517 518 #ifdef SLHCI_DEBUG 519 static int slhci_memtest(struct slhci_softc *); 520 521 void slhci_log_buffer(struct usbd_xfer *); 522 void slhci_log_req(usb_device_request_t *); 523 void slhci_log_dumpreg(void); 524 void slhci_log_xfer(struct usbd_xfer *); 525 void slhci_log_spipe(struct slhci_pipe *); 526 void slhci_print_intr(void); 527 void slhci_log_sc(void); 528 void slhci_log_slreq(struct slhci_pipe *); 529 530 /* Constified so you can read the values from ddb */ 531 const int SLHCI_D_TRACE = 0x0001; 532 const int SLHCI_D_MSG = 0x0002; 533 const int SLHCI_D_XFER = 0x0004; 534 const int SLHCI_D_MEM = 0x0008; 535 const int SLHCI_D_INTR = 0x0010; 536 const int SLHCI_D_SXFER = 0x0020; 537 const int SLHCI_D_ERR = 0x0080; 538 const int SLHCI_D_BUF = 0x0100; 539 const int SLHCI_D_SOFT = 0x0200; 540 const int SLHCI_D_WAIT = 0x0400; 541 const int SLHCI_D_ROOT = 0x0800; 542 /* SOF/NAK alone normally ignored, SOF also needs D_INTR */ 543 const int SLHCI_D_SOF = 0x1000; 544 const int SLHCI_D_NAK = 0x2000; 545 546 int slhcidebug = 0x1cbc; /* 0xc8c; */ /* 0xffff; */ /* 0xd8c; */ 547 548 SYSCTL_SETUP(sysctl_hw_slhci_setup, "sysctl hw.slhci setup") 549 { 550 int err; 551 const struct sysctlnode *rnode; 552 const struct sysctlnode *cnode; 553 554 err = sysctl_createv(clog, 0, NULL, &rnode, 555 CTLFLAG_PERMANENT, CTLTYPE_NODE, "slhci", 556 SYSCTL_DESCR("slhci global controls"), 557 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); 558 559 if (err) 560 goto fail; 561 562 /* control debugging printfs */ 563 err = sysctl_createv(clog, 0, &rnode, &cnode, 564 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 565 "debug", SYSCTL_DESCR("Enable debugging output"), 566 NULL, 0, &slhcidebug, sizeof(slhcidebug), CTL_CREATE, CTL_EOL); 567 if (err) 568 goto fail; 569 570 return; 571 fail: 572 aprint_error("%s: sysctl_createv failed (err = %d)\n", __func__, err); 573 } 574 575 struct slhci_softc *ssc; 576 577 #define SLHCI_DEXEC(x, y) do { if ((slhcidebug & SLHCI_ ## x)) { y; } \ 578 } while (/*CONSTCOND*/ 0) 579 #define DDOLOG(f, a, b, c, d) do { KERNHIST_LOG(usbhist, f, a, b, c, d); \ 580 } while (/*CONSTCOND*/0) 581 #define DLOG(x, f, a, b, c, d) SLHCI_DEXEC(x, DDOLOG(f, a, b, c, d)) 582 583 /* 584 * DDOLOGBUF logs a buffer up to 8 bytes at a time. No identifier so that we 585 * can make it a real function. 586 */ 587 static void 588 DDOLOGBUF(uint8_t *buf, unsigned int length) 589 { 590 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 591 int i; 592 593 for(i=0; i+8 <= length; i+=8) 594 DDOLOG("%.4x %.4x %.4x %.4x", (buf[i] << 8) | buf[i+1], 595 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 596 (buf[i+6] << 8) | buf[i+7]); 597 if (length == i+7) 598 DDOLOG("%.4x %.4x %.4x %.2x", (buf[i] << 8) | buf[i+1], 599 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 600 buf[i+6]); 601 else if (length == i+6) 602 DDOLOG("%.4x %.4x %.4x", (buf[i] << 8) | buf[i+1], 603 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 0); 604 else if (length == i+5) 605 DDOLOG("%.4x %.4x %.2x", (buf[i] << 8) | buf[i+1], 606 (buf[i+2] << 8) | buf[i+3], buf[i+4], 0); 607 else if (length == i+4) 608 DDOLOG("%.4x %.4x", (buf[i] << 8) | buf[i+1], 609 (buf[i+2] << 8) | buf[i+3], 0,0); 610 else if (length == i+3) 611 DDOLOG("%.4x %.2x", (buf[i] << 8) | buf[i+1], buf[i+2], 0,0); 612 else if (length == i+2) 613 DDOLOG("%.4x", (buf[i] << 8) | buf[i+1], 0,0,0); 614 else if (length == i+1) 615 DDOLOG("%.2x", buf[i], 0,0,0); 616 } 617 #define DLOGBUF(x, b, l) SLHCI_DEXEC(x, DDOLOGBUF(b, l)) 618 619 #define DDOLOGCTRL(x) do { \ 620 DDOLOG("CTRL suspend=%d", !!((x) & SL11_CTRL_SUSPEND), 0, 0, 0); \ 621 DDOLOG("CTRL ls =%d jk =%d reset =%d sof =%d", \ 622 !!((x) & SL11_CTRL_LOWSPEED), !!((x) & SL11_CTRL_JKSTATE), \ 623 !!((x) & SL11_CTRL_RESETENGINE), !!((x) & SL11_CTRL_ENABLESOF));\ 624 } while (0) 625 626 #define DDOLOGISR(r) do { \ 627 DDOLOG("ISR data =%d det/res=%d insert =%d sof =%d", \ 628 !!((r) & SL11_ISR_DATA), !!((r) & SL11_ISR_RESUME), \ 629 !!((r) & SL11_ISR_INSERT), !!!!((r) & SL11_ISR_SOF)); \ 630 DDOLOG("ISR babble =%d usbb =%d usba =%d", \ 631 !!((r) & SL11_ISR_BABBLE), !!((r) & SL11_ISR_USBB), \ 632 !!((r) & SL11_ISR_USBA), 0); \ 633 } while (0) 634 635 #define DDOLOGIER(r) do { \ 636 DDOLOG("IER det/res=%d insert =%d sof =%d", \ 637 !!((r) & SL11_IER_RESUME), \ 638 !!((r) & SL11_IER_INSERT), !!!!((r) & SL11_IER_SOF), 0); \ 639 DDOLOG("IER babble =%d usbb =%d usba =%d", \ 640 !!((r) & SL11_IER_BABBLE), !!((r) & SL11_IER_USBB), \ 641 !!((r) & SL11_IER_USBA), 0); \ 642 } while (0) 643 644 #define DDOLOGSTATUS(s) do { \ 645 DDOLOG("STAT stall =%d nak =%d overflow =%d setup =%d", \ 646 !!((s) & SL11_EPSTAT_STALL), !!((s) & SL11_EPSTAT_NAK), \ 647 !!((s) & SL11_EPSTAT_OVERFLOW), !!((s) & SL11_EPSTAT_SETUP)); \ 648 DDOLOG("STAT sequence=%d timeout =%d error =%d ack =%d", \ 649 !!((s) & SL11_EPSTAT_SEQUENCE), !!((s) & SL11_EPSTAT_TIMEOUT), \ 650 !!((s) & SL11_EPSTAT_ERROR), !!((s) & SL11_EPSTAT_ACK)); \ 651 } while (0) 652 653 #define DDOLOGEPCTRL(r) do { \ 654 DDOLOG("CTRL preamble=%d toggle =%d sof =%d iso =%d", \ 655 !!((r) & SL11_EPCTRL_PREAMBLE), !!((r) & SL11_EPCTRL_DATATOGGLE),\ 656 !!((r) & SL11_EPCTRL_SOF), !!((r) & SL11_EPCTRL_ISO)); \ 657 DDOLOG("CTRL out =%d enable =%d arm =%d", \ 658 !!((r) & SL11_EPCTRL_DIRECTION), \ 659 !!((r) & SL11_EPCTRL_ENABLE), !!((r) & SL11_EPCTRL_ARM), 0); \ 660 } while (0) 661 662 #define DDOLOGEPSTAT(r) do { \ 663 DDOLOG("STAT stall =%d nak =%d overflow =%d setup =%d", \ 664 !!((r) & SL11_EPSTAT_STALL), !!((r) & SL11_EPSTAT_NAK), \ 665 !!((r) & SL11_EPSTAT_OVERFLOW), !!((r) & SL11_EPSTAT_SETUP)); \ 666 DDOLOG("STAT sequence=%d timeout =%d error =%d ack =%d", \ 667 !!((r) & SL11_EPSTAT_SEQUENCE), !!((r) & SL11_EPSTAT_TIMEOUT), \ 668 !!((r) & SL11_EPSTAT_ERROR), !!((r) & SL11_EPSTAT_ACK)); \ 669 } while (0) 670 #else /* now !SLHCI_DEBUG */ 671 #define slhcidebug 0 672 #define slhci_log_spipe(spipe) ((void)0) 673 #define slhci_log_xfer(xfer) ((void)0) 674 #define SLHCI_DEXEC(x, y) ((void)0) 675 #define DDOLOG(f, a, b, c, d) ((void)0) 676 #define DLOG(x, f, a, b, c, d) ((void)0) 677 #define DDOLOGBUF(b, l) ((void)0) 678 #define DLOGBUF(x, b, l) ((void)0) 679 #define DDOLOGCTRL(x) ((void)0) 680 #define DDOLOGISR(r) ((void)0) 681 #define DDOLOGIER(r) ((void)0) 682 #define DDOLOGSTATUS(s) ((void)0) 683 #define DDOLOGEPCTRL(r) ((void)0) 684 #define DDOLOGEPSTAT(r) ((void)0) 685 #endif /* SLHCI_DEBUG */ 686 687 #ifdef DIAGNOSTIC 688 #define LK_SLASSERT(exp, sc, spipe, xfer, ext) do { \ 689 if (!(exp)) { \ 690 printf("%s: assertion %s failed line %u function %s!" \ 691 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__);\ 692 slhci_halt(sc, spipe, xfer); \ 693 ext; \ 694 } \ 695 } while (/*CONSTCOND*/0) 696 #define UL_SLASSERT(exp, sc, spipe, xfer, ext) do { \ 697 if (!(exp)) { \ 698 printf("%s: assertion %s failed line %u function %s!" \ 699 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__); \ 700 slhci_lock_call(sc, &slhci_halt, spipe, xfer); \ 701 ext; \ 702 } \ 703 } while (/*CONSTCOND*/0) 704 #else 705 #define LK_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) 706 #define UL_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) 707 #endif 708 709 const struct usbd_bus_methods slhci_bus_methods = { 710 .ubm_open = slhci_open, 711 .ubm_softint= slhci_void, 712 .ubm_dopoll = slhci_poll, 713 .ubm_allocx = slhci_allocx, 714 .ubm_freex = slhci_freex, 715 .ubm_getlock = slhci_get_lock, 716 .ubm_rhctrl = slhci_roothub_ctrl, 717 }; 718 719 const struct usbd_pipe_methods slhci_pipe_methods = { 720 .upm_transfer = slhci_transfer, 721 .upm_start = slhci_start, 722 .upm_abort = slhci_abort, 723 .upm_close = slhci_close, 724 .upm_cleartoggle = slhci_clear_toggle, 725 .upm_done = slhci_done, 726 }; 727 728 const struct usbd_pipe_methods slhci_root_methods = { 729 .upm_transfer = slhci_transfer, 730 .upm_start = slhci_root_start, 731 .upm_abort = slhci_abort, 732 .upm_close = (void (*)(struct usbd_pipe *))slhci_void, /* XXX safe? */ 733 .upm_cleartoggle = slhci_clear_toggle, 734 .upm_done = slhci_done, 735 }; 736 737 /* Queue inlines */ 738 739 #define GOT_FIRST_TO(tvar, t) \ 740 GCQ_GOT_FIRST_TYPED(tvar, &(t)->to, struct slhci_pipe, to) 741 742 #define FIND_TO(var, t, tvar, cond) \ 743 GCQ_FIND_TYPED(var, &(t)->to, tvar, struct slhci_pipe, to, cond) 744 745 #define FOREACH_AP(var, t, tvar) \ 746 GCQ_FOREACH_TYPED(var, &(t)->ap, tvar, struct slhci_pipe, ap) 747 748 #define GOT_FIRST_TIMED_COND(tvar, t, cond) \ 749 GCQ_GOT_FIRST_COND_TYPED(tvar, &(t)->timed, struct slhci_pipe, xq, cond) 750 751 #define GOT_FIRST_CB(tvar, t) \ 752 GCQ_GOT_FIRST_TYPED(tvar, &(t)->q[Q_CB], struct slhci_pipe, xq) 753 754 #define DEQUEUED_CALLBACK(tvar, t) \ 755 GCQ_DEQUEUED_FIRST_TYPED(tvar, &(t)->q[Q_CALLBACKS], struct slhci_pipe, xq) 756 757 #define FIND_TIMED(var, t, tvar, cond) \ 758 GCQ_FIND_TYPED(var, &(t)->timed, tvar, struct slhci_pipe, xq, cond) 759 760 #define DEQUEUED_WAITQ(tvar, sc) \ 761 GCQ_DEQUEUED_FIRST_TYPED(tvar, &(sc)->sc_waitq, struct slhci_pipe, xq) 762 763 static inline void 764 enter_waitq(struct slhci_softc *sc, struct slhci_pipe *spipe) 765 { 766 gcq_insert_tail(&sc->sc_waitq, &spipe->xq); 767 } 768 769 static inline void 770 enter_q(struct slhci_transfers *t, struct slhci_pipe *spipe, int i) 771 { 772 gcq_insert_tail(&t->q[i], &spipe->xq); 773 } 774 775 static inline void 776 enter_callback(struct slhci_transfers *t, struct slhci_pipe *spipe) 777 { 778 gcq_insert_tail(&t->q[Q_CALLBACKS], &spipe->xq); 779 } 780 781 static inline void 782 enter_all_pipes(struct slhci_transfers *t, struct slhci_pipe *spipe) 783 { 784 gcq_insert_tail(&t->ap, &spipe->ap); 785 } 786 787 /* Start out of lock functions. */ 788 789 struct usbd_xfer * 790 slhci_allocx(struct usbd_bus *bus, unsigned int nframes) 791 { 792 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 793 struct usbd_xfer *xfer; 794 795 xfer = kmem_zalloc(sizeof(*xfer), KM_SLEEP); 796 797 DLOG(D_MEM, "allocx %p", xfer, 0,0,0); 798 799 #ifdef SLHCI_MEM_ACCOUNTING 800 slhci_mem_use(bus, 1); 801 #endif 802 #ifdef DIAGNOSTIC 803 if (xfer != NULL) 804 xfer->ux_state = XFER_BUSY; 805 #endif 806 return xfer; 807 } 808 809 void 810 slhci_freex(struct usbd_bus *bus, struct usbd_xfer *xfer) 811 { 812 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 813 DLOG(D_MEM, "freex xfer %p spipe %p", xfer, xfer->ux_pipe,0,0); 814 815 #ifdef SLHCI_MEM_ACCOUNTING 816 slhci_mem_use(bus, -1); 817 #endif 818 #ifdef DIAGNOSTIC 819 if (xfer->ux_state != XFER_BUSY) { 820 struct slhci_softc *sc = SLHCI_BUS2SC(bus); 821 printf("%s: slhci_freex: xfer=%p not busy, %#08x halted\n", 822 SC_NAME(sc), xfer, xfer->ux_state); 823 DDOLOG("xfer=%p not busy, %#08x halted\n", xfer, 824 xfer->ux_state, 0, 0); 825 slhci_lock_call(sc, &slhci_halt, NULL, NULL); 826 return; 827 } 828 xfer->ux_state = XFER_FREE; 829 #endif 830 831 kmem_free(xfer, sizeof(*xfer)); 832 } 833 834 static void 835 slhci_get_lock(struct usbd_bus *bus, kmutex_t **lock) 836 { 837 struct slhci_softc *sc = SLHCI_BUS2SC(bus); 838 839 *lock = &sc->sc_lock; 840 } 841 842 usbd_status 843 slhci_transfer(struct usbd_xfer *xfer) 844 { 845 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 846 struct slhci_softc *sc = SLHCI_XFER2SC(xfer); 847 usbd_status error; 848 849 DLOG(D_TRACE, "transfer type %d xfer %p spipe %p ", 850 SLHCI_XFER_TYPE(xfer), xfer, xfer->ux_pipe, 0); 851 852 /* Insert last in queue */ 853 mutex_enter(&sc->sc_lock); 854 error = usb_insert_transfer(xfer); 855 mutex_exit(&sc->sc_lock); 856 if (error) { 857 if (error != USBD_IN_PROGRESS) 858 DLOG(D_ERR, "usb_insert_transfer returns %d!", error, 859 0,0,0); 860 return error; 861 } 862 863 /* 864 * Pipe isn't running (otherwise error would be USBD_INPROG), 865 * so start it first. 866 */ 867 868 /* 869 * Start will take the lock. 870 */ 871 error = xfer->ux_pipe->up_methods->upm_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); 872 873 return error; 874 } 875 876 /* It is not safe for start to return anything other than USBD_INPROG. */ 877 usbd_status 878 slhci_start(struct usbd_xfer *xfer) 879 { 880 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 881 struct slhci_softc *sc = SLHCI_XFER2SC(xfer); 882 struct usbd_pipe *pipe = xfer->ux_pipe; 883 struct slhci_pipe *spipe = SLHCI_PIPE2SPIPE(pipe); 884 struct slhci_transfers *t = &sc->sc_transfers; 885 usb_endpoint_descriptor_t *ed = pipe->up_endpoint->ue_edesc; 886 unsigned int max_packet; 887 888 mutex_enter(&sc->sc_lock); 889 890 max_packet = UGETW(ed->wMaxPacketSize); 891 892 DLOG(D_TRACE, "transfer type %d start xfer %p spipe %p length %d", 893 spipe->ptype, xfer, spipe, xfer->ux_length); 894 895 /* root transfers use slhci_root_start */ 896 897 KASSERT(spipe->xfer == NULL); /* not SLASSERT */ 898 899 xfer->ux_actlen = 0; 900 xfer->ux_status = USBD_IN_PROGRESS; 901 902 spipe->xfer = xfer; 903 904 spipe->nerrs = 0; 905 spipe->frame = t->frame; 906 spipe->control = SL11_EPCTRL_ARM_ENABLE; 907 spipe->tregs[DEV] = pipe->up_dev->ud_addr; 908 spipe->tregs[PID] = spipe->newpid = UE_GET_ADDR(ed->bEndpointAddress) 909 | (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? SL11_PID_IN : 910 SL11_PID_OUT); 911 spipe->newlen[0] = xfer->ux_length % max_packet; 912 spipe->newlen[1] = min(xfer->ux_length, max_packet); 913 914 if (spipe->ptype == PT_BULK || spipe->ptype == PT_INTR) { 915 if (spipe->pflags & PF_TOGGLE) 916 spipe->control |= SL11_EPCTRL_DATATOGGLE; 917 spipe->tregs[LEN] = spipe->newlen[1]; 918 if (spipe->tregs[LEN]) 919 spipe->buffer = xfer->ux_buf; 920 else 921 spipe->buffer = NULL; 922 spipe->lastframe = t->frame; 923 if (spipe->ptype == PT_INTR) { 924 spipe->frame = spipe->lastframe + 925 spipe->pipe.up_interval; 926 } 927 928 #if defined(DEBUG) || defined(SLHCI_DEBUG) 929 if (__predict_false(spipe->ptype == PT_INTR && 930 xfer->ux_length > spipe->tregs[LEN])) { 931 printf("%s: Long INTR transfer not supported!\n", 932 SC_NAME(sc)); 933 DDOLOG("Long INTR transfer not supported!", 0, 0, 0, 0); 934 xfer->ux_status = USBD_INVAL; 935 } 936 #endif 937 } else { 938 /* ptype may be currently set to any control transfer type. */ 939 SLHCI_DEXEC(D_TRACE, slhci_log_xfer(xfer)); 940 941 /* SETUP contains IN/OUT bits also */ 942 spipe->tregs[PID] |= SL11_PID_SETUP; 943 spipe->tregs[LEN] = 8; 944 spipe->buffer = (uint8_t *)&xfer->ux_request; 945 DLOGBUF(D_XFER, spipe->buffer, spipe->tregs[LEN]); 946 spipe->ptype = PT_CTRL_SETUP; 947 spipe->newpid &= ~SL11_PID_BITS; 948 if (xfer->ux_length == 0 || 949 (xfer->ux_request.bmRequestType & UT_READ)) 950 spipe->newpid |= SL11_PID_IN; 951 else 952 spipe->newpid |= SL11_PID_OUT; 953 } 954 955 if (xfer->ux_flags & USBD_FORCE_SHORT_XFER && 956 spipe->tregs[LEN] == max_packet && 957 (spipe->newpid & SL11_PID_BITS) == SL11_PID_OUT) 958 spipe->wantshort = 1; 959 else 960 spipe->wantshort = 0; 961 962 /* 963 * The goal of newbustime and newlen is to avoid bustime calculation 964 * in the interrupt. The calculations are not too complex, but they 965 * complicate the conditional logic somewhat and doing them all in the 966 * same place shares constants. Index 0 is "short length" for bulk and 967 * ctrl data and 1 is "full length" for ctrl data (bulk/intr are 968 * already set to full length). 969 */ 970 if (spipe->pflags & PF_LS) { 971 /* 972 * Setting PREAMBLE for directly connected LS devices will 973 * lock up the chip. 974 */ 975 if (spipe->pflags & PF_PREAMBLE) 976 spipe->control |= SL11_EPCTRL_PREAMBLE; 977 if (max_packet <= 8) { 978 spipe->bustime = SLHCI_LS_CONST + 979 SLHCI_LS_DATA_TIME(spipe->tregs[LEN]); 980 spipe->newbustime[0] = SLHCI_LS_CONST + 981 SLHCI_LS_DATA_TIME(spipe->newlen[0]); 982 spipe->newbustime[1] = SLHCI_LS_CONST + 983 SLHCI_LS_DATA_TIME(spipe->newlen[1]); 984 } else 985 xfer->ux_status = USBD_INVAL; 986 } else { 987 UL_SLASSERT(pipe->up_dev->ud_speed == USB_SPEED_FULL, sc, 988 spipe, xfer, return USBD_IN_PROGRESS); 989 if (max_packet <= SL11_MAX_PACKET_SIZE) { 990 spipe->bustime = SLHCI_FS_CONST + 991 SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); 992 spipe->newbustime[0] = SLHCI_FS_CONST + 993 SLHCI_FS_DATA_TIME(spipe->newlen[0]); 994 spipe->newbustime[1] = SLHCI_FS_CONST + 995 SLHCI_FS_DATA_TIME(spipe->newlen[1]); 996 } else 997 xfer->ux_status = USBD_INVAL; 998 } 999 1000 /* 1001 * The datasheet incorrectly indicates that DIRECTION is for 1002 * "transmit to host". It is for OUT and SETUP. The app note 1003 * describes its use correctly. 1004 */ 1005 if ((spipe->tregs[PID] & SL11_PID_BITS) != SL11_PID_IN) 1006 spipe->control |= SL11_EPCTRL_DIRECTION; 1007 1008 slhci_start_entry(sc, spipe); 1009 1010 mutex_exit(&sc->sc_lock); 1011 1012 return USBD_IN_PROGRESS; 1013 } 1014 1015 usbd_status 1016 slhci_root_start(struct usbd_xfer *xfer) 1017 { 1018 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1019 struct slhci_softc *sc; 1020 struct slhci_pipe *spipe __diagused; 1021 1022 spipe = SLHCI_PIPE2SPIPE(xfer->ux_pipe); 1023 sc = SLHCI_XFER2SC(xfer); 1024 1025 struct slhci_transfers *t = &sc->sc_transfers; 1026 1027 LK_SLASSERT(spipe != NULL && xfer != NULL, sc, spipe, xfer, return 1028 USBD_CANCELLED); 1029 1030 DLOG(D_TRACE, "transfer type %d start", SLHCI_XFER_TYPE(xfer), 0, 0, 0); 1031 1032 KASSERT(spipe->ptype == PT_ROOT_INTR); 1033 1034 mutex_enter(&sc->sc_intr_lock); 1035 t->rootintr = xfer; 1036 mutex_exit(&sc->sc_intr_lock); 1037 1038 return USBD_IN_PROGRESS; 1039 } 1040 1041 usbd_status 1042 slhci_open(struct usbd_pipe *pipe) 1043 { 1044 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1045 struct usbd_device *dev; 1046 struct slhci_softc *sc; 1047 struct slhci_pipe *spipe; 1048 usb_endpoint_descriptor_t *ed; 1049 unsigned int max_packet, pmaxpkt; 1050 uint8_t rhaddr; 1051 1052 dev = pipe->up_dev; 1053 sc = SLHCI_PIPE2SC(pipe); 1054 spipe = SLHCI_PIPE2SPIPE(pipe); 1055 ed = pipe->up_endpoint->ue_edesc; 1056 rhaddr = dev->ud_bus->ub_rhaddr; 1057 1058 DLOG(D_TRACE, "slhci_open(addr=%d,ep=%d,rootaddr=%d)", 1059 dev->ud_addr, ed->bEndpointAddress, rhaddr, 0); 1060 1061 spipe->pflags = 0; 1062 spipe->frame = 0; 1063 spipe->lastframe = 0; 1064 spipe->xfer = NULL; 1065 spipe->buffer = NULL; 1066 1067 gcq_init(&spipe->ap); 1068 gcq_init(&spipe->to); 1069 gcq_init(&spipe->xq); 1070 1071 /* 1072 * The endpoint descriptor will not have been set up yet in the case 1073 * of the standard control pipe, so the max packet checks are also 1074 * necessary in start. 1075 */ 1076 1077 max_packet = UGETW(ed->wMaxPacketSize); 1078 1079 if (dev->ud_speed == USB_SPEED_LOW) { 1080 spipe->pflags |= PF_LS; 1081 if (dev->ud_myhub->ud_addr != rhaddr) { 1082 spipe->pflags |= PF_PREAMBLE; 1083 if (!slhci_try_lsvh) 1084 return slhci_lock_call(sc, &slhci_lsvh_warn, 1085 spipe, NULL); 1086 } 1087 pmaxpkt = 8; 1088 } else 1089 pmaxpkt = SL11_MAX_PACKET_SIZE; 1090 1091 if (max_packet > pmaxpkt) { 1092 DLOG(D_ERR, "packet too large! size %d spipe %p", max_packet, 1093 spipe, 0,0); 1094 return USBD_INVAL; 1095 } 1096 1097 if (dev->ud_addr == rhaddr) { 1098 switch (ed->bEndpointAddress) { 1099 case USB_CONTROL_ENDPOINT: 1100 spipe->ptype = PT_ROOT_CTRL; 1101 pipe->up_interval = 0; 1102 pipe->up_methods = &roothub_ctrl_methods; 1103 break; 1104 case UE_DIR_IN | USBROOTHUB_INTR_ENDPT: 1105 spipe->ptype = PT_ROOT_INTR; 1106 pipe->up_interval = 1; 1107 pipe->up_methods = &slhci_root_methods; 1108 break; 1109 default: 1110 printf("%s: Invalid root endpoint!\n", SC_NAME(sc)); 1111 DDOLOG("Invalid root endpoint", 0, 0, 0, 0); 1112 return USBD_INVAL; 1113 } 1114 return USBD_NORMAL_COMPLETION; 1115 } else { 1116 switch (ed->bmAttributes & UE_XFERTYPE) { 1117 case UE_CONTROL: 1118 spipe->ptype = PT_CTRL_SETUP; 1119 pipe->up_interval = 0; 1120 break; 1121 case UE_INTERRUPT: 1122 spipe->ptype = PT_INTR; 1123 if (pipe->up_interval == USBD_DEFAULT_INTERVAL) 1124 pipe->up_interval = ed->bInterval; 1125 break; 1126 case UE_ISOCHRONOUS: 1127 return slhci_lock_call(sc, &slhci_isoc_warn, spipe, 1128 NULL); 1129 case UE_BULK: 1130 spipe->ptype = PT_BULK; 1131 pipe->up_interval = 0; 1132 break; 1133 } 1134 1135 DLOG(D_MSG, "open pipe type %d interval %d", spipe->ptype, 1136 pipe->up_interval, 0,0); 1137 1138 pipe->up_methods = __UNCONST(&slhci_pipe_methods); 1139 1140 return slhci_lock_call(sc, &slhci_open_pipe, spipe, NULL); 1141 } 1142 } 1143 1144 int 1145 slhci_supported_rev(uint8_t rev) 1146 { 1147 return rev >= SLTYPE_SL811HS_R12 && rev <= SLTYPE_SL811HS_R15; 1148 } 1149 1150 /* 1151 * Must be called before the ISR is registered. Interrupts can be shared so 1152 * slhci_intr could be called as soon as the ISR is registered. 1153 * Note max_current argument is actual current, but stored as current/2 1154 */ 1155 void 1156 slhci_preinit(struct slhci_softc *sc, PowerFunc pow, bus_space_tag_t iot, 1157 bus_space_handle_t ioh, uint16_t max_current, uint32_t stride) 1158 { 1159 struct slhci_transfers *t; 1160 int i; 1161 1162 t = &sc->sc_transfers; 1163 1164 #ifdef SLHCI_DEBUG 1165 ssc = sc; 1166 #endif 1167 1168 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SOFTUSB); 1169 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_USB); 1170 1171 /* sc->sc_ier = 0; */ 1172 /* t->rootintr = NULL; */ 1173 t->flags = F_NODEV|F_UDISABLED; 1174 t->pend = INT_MAX; 1175 KASSERT(slhci_wait_time != INT_MAX); 1176 t->len[0] = t->len[1] = -1; 1177 if (max_current > 500) 1178 max_current = 500; 1179 t->max_current = (uint8_t)(max_current / 2); 1180 sc->sc_enable_power = pow; 1181 sc->sc_iot = iot; 1182 sc->sc_ioh = ioh; 1183 sc->sc_stride = stride; 1184 1185 KASSERT(Q_MAX+1 == sizeof(t->q) / sizeof(t->q[0])); 1186 1187 for (i = 0; i <= Q_MAX; i++) 1188 gcq_init_head(&t->q[i]); 1189 gcq_init_head(&t->timed); 1190 gcq_init_head(&t->to); 1191 gcq_init_head(&t->ap); 1192 gcq_init_head(&sc->sc_waitq); 1193 } 1194 1195 int 1196 slhci_attach(struct slhci_softc *sc) 1197 { 1198 struct slhci_transfers *t; 1199 const char *rev; 1200 1201 t = &sc->sc_transfers; 1202 1203 /* Detect and check the controller type */ 1204 t->sltype = SL11_GET_REV(slhci_read(sc, SL11_REV)); 1205 1206 /* SL11H not supported */ 1207 if (!slhci_supported_rev(t->sltype)) { 1208 if (t->sltype == SLTYPE_SL11H) 1209 printf("%s: SL11H unsupported or bus error!\n", 1210 SC_NAME(sc)); 1211 else 1212 printf("%s: Unknown chip revision!\n", SC_NAME(sc)); 1213 return -1; 1214 } 1215 1216 #ifdef SLHCI_DEBUG 1217 if (slhci_memtest(sc)) { 1218 printf("%s: memory/bus error!\n", SC_NAME(sc)); 1219 return -1; 1220 } 1221 #endif 1222 1223 callout_init(&sc->sc_timer, CALLOUT_MPSAFE); 1224 callout_setfunc(&sc->sc_timer, slhci_reset_entry, sc); 1225 1226 /* 1227 * It is not safe to call the soft interrupt directly as 1228 * usb_schedsoftintr does in the ub_usepolling case (due to locking). 1229 */ 1230 sc->sc_cb_softintr = softint_establish(SOFTINT_NET, 1231 slhci_callback_entry, sc); 1232 1233 if (t->sltype == SLTYPE_SL811HS_R12) 1234 rev = "(rev 1.2)"; 1235 else if (t->sltype == SLTYPE_SL811HS_R14) 1236 rev = "(rev 1.4 or 1.5)"; 1237 else 1238 rev = "(unknown revision)"; 1239 1240 aprint_normal("%s: ScanLogic SL811HS/T USB Host Controller %s\n", 1241 SC_NAME(sc), rev); 1242 1243 aprint_normal("%s: Max Current %u mA (value by code, not by probe)\n", 1244 SC_NAME(sc), t->max_current * 2); 1245 1246 #if defined(SLHCI_DEBUG) || defined(SLHCI_NO_OVERTIME) || \ 1247 defined(SLHCI_TRY_LSVH) || defined(SLHCI_PROFILE_TRANSFER) 1248 aprint_normal("%s: driver options:" 1249 #ifdef SLHCI_DEBUG 1250 " SLHCI_DEBUG" 1251 #endif 1252 #ifdef SLHCI_TRY_LSVH 1253 " SLHCI_TRY_LSVH" 1254 #endif 1255 #ifdef SLHCI_NO_OVERTIME 1256 " SLHCI_NO_OVERTIME" 1257 #endif 1258 #ifdef SLHCI_PROFILE_TRANSFER 1259 " SLHCI_PROFILE_TRANSFER" 1260 #endif 1261 "\n", SC_NAME(sc)); 1262 #endif 1263 sc->sc_bus.ub_revision = USBREV_1_1; 1264 sc->sc_bus.ub_methods = __UNCONST(&slhci_bus_methods); 1265 sc->sc_bus.ub_pipesize = sizeof(struct slhci_pipe); 1266 sc->sc_bus.ub_usedma = false; 1267 1268 if (!sc->sc_enable_power) 1269 t->flags |= F_REALPOWER; 1270 1271 t->flags |= F_ACTIVE; 1272 1273 /* Attach usb and uhub. */ 1274 sc->sc_child = config_found(SC_DEV(sc), &sc->sc_bus, usbctlprint); 1275 1276 if (!sc->sc_child) 1277 return -1; 1278 else 1279 return 0; 1280 } 1281 1282 int 1283 slhci_detach(struct slhci_softc *sc, int flags) 1284 { 1285 struct slhci_transfers *t; 1286 int ret; 1287 1288 t = &sc->sc_transfers; 1289 1290 /* By this point bus access is no longer allowed. */ 1291 1292 KASSERT(!(t->flags & F_ACTIVE)); 1293 1294 /* 1295 * To be MPSAFE is not sufficient to cancel callouts and soft 1296 * interrupts and assume they are dead since the code could already be 1297 * running or about to run. Wait until they are known to be done. 1298 */ 1299 while (t->flags & (F_RESET|F_CALLBACK)) 1300 tsleep(&sc, PPAUSE, "slhci_detach", hz); 1301 1302 softint_disestablish(sc->sc_cb_softintr); 1303 1304 mutex_destroy(&sc->sc_lock); 1305 mutex_destroy(&sc->sc_intr_lock); 1306 1307 ret = 0; 1308 1309 if (sc->sc_child) 1310 ret = config_detach(sc->sc_child, flags); 1311 1312 #ifdef SLHCI_MEM_ACCOUNTING 1313 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1314 if (sc->sc_mem_use) { 1315 printf("%s: Memory still in use after detach! mem_use (count)" 1316 " = %d\n", SC_NAME(sc), sc->sc_mem_use); 1317 DDOLOG("Memory still in use after detach! mem_use (count)" 1318 " = %d", sc->sc_mem_use, 0, 0, 0); 1319 } 1320 #endif 1321 1322 return ret; 1323 } 1324 1325 int 1326 slhci_activate(device_t self, enum devact act) 1327 { 1328 struct slhci_softc *sc = device_private(self); 1329 1330 switch (act) { 1331 case DVACT_DEACTIVATE: 1332 slhci_lock_call(sc, &slhci_halt, NULL, NULL); 1333 return 0; 1334 default: 1335 return EOPNOTSUPP; 1336 } 1337 } 1338 1339 void 1340 slhci_abort(struct usbd_xfer *xfer) 1341 { 1342 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1343 struct slhci_softc *sc; 1344 struct slhci_pipe *spipe; 1345 1346 spipe = SLHCI_PIPE2SPIPE(xfer->ux_pipe); 1347 1348 if (spipe == NULL) 1349 goto callback; 1350 1351 sc = SLHCI_XFER2SC(xfer); 1352 KASSERT(mutex_owned(&sc->sc_lock)); 1353 1354 DLOG(D_TRACE, "transfer type %d abort xfer %p spipe %p spipe->xfer %p", 1355 spipe->ptype, xfer, spipe, spipe->xfer); 1356 1357 slhci_lock_call(sc, &slhci_do_abort, spipe, xfer); 1358 1359 callback: 1360 xfer->ux_status = USBD_CANCELLED; 1361 usb_transfer_complete(xfer); 1362 } 1363 1364 void 1365 slhci_close(struct usbd_pipe *pipe) 1366 { 1367 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1368 struct slhci_softc *sc; 1369 struct slhci_pipe *spipe; 1370 1371 sc = SLHCI_PIPE2SC(pipe); 1372 spipe = SLHCI_PIPE2SPIPE(pipe); 1373 1374 DLOG(D_TRACE, "transfer type %d close spipe %p spipe->xfer %p", 1375 spipe->ptype, spipe, spipe->xfer, 0); 1376 1377 slhci_lock_call(sc, &slhci_close_pipe, spipe, NULL); 1378 } 1379 1380 void 1381 slhci_clear_toggle(struct usbd_pipe *pipe) 1382 { 1383 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1384 struct slhci_pipe *spipe; 1385 1386 spipe = SLHCI_PIPE2SPIPE(pipe); 1387 1388 DLOG(D_TRACE, "transfer type %d toggle spipe %p", spipe->ptype, 1389 spipe,0,0); 1390 1391 spipe->pflags &= ~PF_TOGGLE; 1392 1393 #ifdef DIAGNOSTIC 1394 if (spipe->xfer != NULL) { 1395 struct slhci_softc *sc = (struct slhci_softc 1396 *)pipe->up_dev->ud_bus; 1397 1398 printf("%s: Clear toggle on transfer in progress! halted\n", 1399 SC_NAME(sc)); 1400 DDOLOG("Clear toggle on transfer in progress! halted", 1401 0, 0, 0, 0); 1402 slhci_halt(sc, NULL, NULL); 1403 } 1404 #endif 1405 } 1406 1407 void 1408 slhci_poll(struct usbd_bus *bus) /* XXX necessary? */ 1409 { 1410 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1411 struct slhci_softc *sc; 1412 1413 sc = SLHCI_BUS2SC(bus); 1414 1415 DLOG(D_TRACE, "slhci_poll", 0,0,0,0); 1416 1417 slhci_lock_call(sc, &slhci_do_poll, NULL, NULL); 1418 } 1419 1420 void 1421 slhci_done(struct usbd_xfer *xfer) 1422 { 1423 } 1424 1425 void 1426 slhci_void(void *v) {} 1427 1428 /* End out of lock functions. Start lock entry functions. */ 1429 1430 #ifdef SLHCI_MEM_ACCOUNTING 1431 void 1432 slhci_mem_use(struct usbd_bus *bus, int val) 1433 { 1434 struct slhci_softc *sc = SLHCI_BUS2SC(bus); 1435 1436 mutex_enter(&sc->sc_intr_lock); 1437 sc->sc_mem_use += val; 1438 mutex_exit(&sc->sc_intr_lock); 1439 } 1440 #endif 1441 1442 void 1443 slhci_reset_entry(void *arg) 1444 { 1445 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1446 struct slhci_softc *sc = arg; 1447 1448 mutex_enter(&sc->sc_intr_lock); 1449 slhci_reset(sc); 1450 /* 1451 * We cannot call the callback directly since we could then be reset 1452 * again before finishing and need the callout delay for timing. 1453 * Scheduling the callout again before we exit would defeat the reap 1454 * mechanism since we could be unlocked while the reset flag is not 1455 * set. The callback code will check the wait queue. 1456 */ 1457 slhci_callback_schedule(sc); 1458 mutex_exit(&sc->sc_intr_lock); 1459 } 1460 1461 usbd_status 1462 slhci_lock_call(struct slhci_softc *sc, LockCallFunc lcf, struct slhci_pipe 1463 *spipe, struct usbd_xfer *xfer) 1464 { 1465 usbd_status ret; 1466 1467 mutex_enter(&sc->sc_intr_lock); 1468 ret = (*lcf)(sc, spipe, xfer); 1469 slhci_main(sc); 1470 mutex_exit(&sc->sc_intr_lock); 1471 1472 return ret; 1473 } 1474 1475 void 1476 slhci_start_entry(struct slhci_softc *sc, struct slhci_pipe *spipe) 1477 { 1478 struct slhci_transfers *t; 1479 1480 mutex_enter(&sc->sc_intr_lock); 1481 t = &sc->sc_transfers; 1482 1483 if (!(t->flags & (F_AINPROG|F_BINPROG))) { 1484 slhci_enter_xfer(sc, spipe); 1485 slhci_dotransfer(sc); 1486 slhci_main(sc); 1487 } else { 1488 enter_waitq(sc, spipe); 1489 } 1490 mutex_exit(&sc->sc_intr_lock); 1491 } 1492 1493 void 1494 slhci_callback_entry(void *arg) 1495 { 1496 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1497 struct slhci_softc *sc; 1498 struct slhci_transfers *t; 1499 1500 sc = (struct slhci_softc *)arg; 1501 1502 mutex_enter(&sc->sc_intr_lock); 1503 t = &sc->sc_transfers; 1504 DLOG(D_SOFT, "callback_entry flags %#x", t->flags, 0,0,0); 1505 1506 repeat: 1507 slhci_callback(sc); 1508 1509 if (!gcq_empty(&sc->sc_waitq)) { 1510 slhci_enter_xfers(sc); 1511 slhci_dotransfer(sc); 1512 slhci_waitintr(sc, 0); 1513 goto repeat; 1514 } 1515 1516 t->flags &= ~F_CALLBACK; 1517 mutex_exit(&sc->sc_intr_lock); 1518 } 1519 1520 void 1521 slhci_do_callback(struct slhci_softc *sc, struct usbd_xfer *xfer) 1522 { 1523 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1524 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1525 1526 start_cc_time(&t_callback, (u_int)xfer); 1527 mutex_exit(&sc->sc_intr_lock); 1528 1529 mutex_enter(&sc->sc_lock); 1530 usb_transfer_complete(xfer); 1531 mutex_exit(&sc->sc_lock); 1532 1533 mutex_enter(&sc->sc_intr_lock); 1534 stop_cc_time(&t_callback); 1535 } 1536 1537 int 1538 slhci_intr(void *arg) 1539 { 1540 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1541 struct slhci_softc *sc = arg; 1542 int ret = 0; 1543 int irq; 1544 1545 start_cc_time(&t_hard_int, (unsigned int)arg); 1546 mutex_enter(&sc->sc_intr_lock); 1547 1548 do { 1549 irq = slhci_dointr(sc); 1550 ret |= irq; 1551 slhci_main(sc); 1552 } while (irq); 1553 mutex_exit(&sc->sc_intr_lock); 1554 1555 stop_cc_time(&t_hard_int); 1556 return ret; 1557 } 1558 1559 /* called with interrupt lock only held. */ 1560 void 1561 slhci_main(struct slhci_softc *sc) 1562 { 1563 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1564 struct slhci_transfers *t; 1565 1566 t = &sc->sc_transfers; 1567 1568 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1569 1570 waitcheck: 1571 slhci_waitintr(sc, slhci_wait_time); 1572 1573 /* 1574 * The direct call is needed in the ub_usepolling and disabled cases 1575 * since the soft interrupt is not available. In the disabled case, 1576 * this code can be reached from the usb detach, after the reaping of 1577 * the soft interrupt. That test could be !F_ACTIVE, but there is no 1578 * reason not to make the callbacks directly in the other DISABLED 1579 * cases. 1580 */ 1581 if ((t->flags & F_ROOTINTR) || !gcq_empty(&t->q[Q_CALLBACKS])) { 1582 if (__predict_false(sc->sc_bus.ub_usepolling || 1583 t->flags & F_DISABLED)) 1584 slhci_callback(sc); 1585 else 1586 slhci_callback_schedule(sc); 1587 } 1588 1589 if (!gcq_empty(&sc->sc_waitq)) { 1590 slhci_enter_xfers(sc); 1591 slhci_dotransfer(sc); 1592 goto waitcheck; 1593 } 1594 DLOG(D_INTR, "... done", 0, 0, 0, 0); 1595 } 1596 1597 /* End lock entry functions. Start in lock function. */ 1598 1599 /* Register read/write routines and barriers. */ 1600 #ifdef SLHCI_BUS_SPACE_BARRIERS 1601 #define BSB(a, b, c, d, e) bus_space_barrier(a, b, c, d, BUS_SPACE_BARRIER_ # e) 1602 #define BSB_SYNC(a, b, c, d) bus_space_barrier(a, b, c, d, BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 1603 #else /* now !SLHCI_BUS_SPACE_BARRIERS */ 1604 #define BSB(a, b, c, d, e) __USE(d) 1605 #define BSB_SYNC(a, b, c, d) 1606 #endif /* SLHCI_BUS_SPACE_BARRIERS */ 1607 1608 static void 1609 slhci_write(struct slhci_softc *sc, uint8_t addr, uint8_t data) 1610 { 1611 bus_size_t paddr, pdata, pst, psz; 1612 bus_space_tag_t iot; 1613 bus_space_handle_t ioh; 1614 1615 paddr = pst = 0; 1616 pdata = sc->sc_stride; 1617 psz = pdata * 2; 1618 iot = sc->sc_iot; 1619 ioh = sc->sc_ioh; 1620 1621 bus_space_write_1(iot, ioh, paddr, addr); 1622 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1623 bus_space_write_1(iot, ioh, pdata, data); 1624 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1625 } 1626 1627 static uint8_t 1628 slhci_read(struct slhci_softc *sc, uint8_t addr) 1629 { 1630 bus_size_t paddr, pdata, pst, psz; 1631 bus_space_tag_t iot; 1632 bus_space_handle_t ioh; 1633 uint8_t data; 1634 1635 paddr = pst = 0; 1636 pdata = sc->sc_stride; 1637 psz = pdata * 2; 1638 iot = sc->sc_iot; 1639 ioh = sc->sc_ioh; 1640 1641 bus_space_write_1(iot, ioh, paddr, addr); 1642 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1643 data = bus_space_read_1(iot, ioh, pdata); 1644 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1645 return data; 1646 } 1647 1648 #if 0 /* auto-increment mode broken, see errata doc */ 1649 static void 1650 slhci_write_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1651 { 1652 bus_size_t paddr, pdata, pst, psz; 1653 bus_space_tag_t iot; 1654 bus_space_handle_t ioh; 1655 1656 paddr = pst = 0; 1657 pdata = sc->sc_stride; 1658 psz = pdata * 2; 1659 iot = sc->sc_iot; 1660 ioh = sc->sc_ioh; 1661 1662 bus_space_write_1(iot, ioh, paddr, addr); 1663 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1664 bus_space_write_multi_1(iot, ioh, pdata, buf, l); 1665 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1666 } 1667 1668 static void 1669 slhci_read_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1670 { 1671 bus_size_t paddr, pdata, pst, psz; 1672 bus_space_tag_t iot; 1673 bus_space_handle_t ioh; 1674 1675 paddr = pst = 0; 1676 pdata = sc->sc_stride; 1677 psz = pdata * 2; 1678 iot = sc->sc_iot; 1679 ioh = sc->sc_ioh; 1680 1681 bus_space_write_1(iot, ioh, paddr, addr); 1682 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1683 bus_space_read_multi_1(iot, ioh, pdata, buf, l); 1684 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1685 } 1686 #else 1687 static void 1688 slhci_write_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1689 { 1690 #if 1 1691 for (; l; addr++, buf++, l--) 1692 slhci_write(sc, addr, *buf); 1693 #else 1694 bus_size_t paddr, pdata, pst, psz; 1695 bus_space_tag_t iot; 1696 bus_space_handle_t ioh; 1697 1698 paddr = pst = 0; 1699 pdata = sc->sc_stride; 1700 psz = pdata * 2; 1701 iot = sc->sc_iot; 1702 ioh = sc->sc_ioh; 1703 1704 for (; l; addr++, buf++, l--) { 1705 bus_space_write_1(iot, ioh, paddr, addr); 1706 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1707 bus_space_write_1(iot, ioh, pdata, *buf); 1708 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1709 } 1710 #endif 1711 } 1712 1713 static void 1714 slhci_read_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1715 { 1716 #if 1 1717 for (; l; addr++, buf++, l--) 1718 *buf = slhci_read(sc, addr); 1719 #else 1720 bus_size_t paddr, pdata, pst, psz; 1721 bus_space_tag_t iot; 1722 bus_space_handle_t ioh; 1723 1724 paddr = pst = 0; 1725 pdata = sc->sc_stride; 1726 psz = pdata * 2; 1727 iot = sc->sc_iot; 1728 ioh = sc->sc_ioh; 1729 1730 for (; l; addr++, buf++, l--) { 1731 bus_space_write_1(iot, ioh, paddr, addr); 1732 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1733 *buf = bus_space_read_1(iot, ioh, pdata); 1734 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1735 } 1736 #endif 1737 } 1738 #endif 1739 1740 /* 1741 * After calling waitintr it is necessary to either call slhci_callback or 1742 * schedule the callback if necessary. The callback cannot be called directly 1743 * from the hard interrupt since it interrupts at a high IPL and callbacks 1744 * can do copyout and such. 1745 */ 1746 static void 1747 slhci_waitintr(struct slhci_softc *sc, int wait_time) 1748 { 1749 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1750 struct slhci_transfers *t; 1751 1752 t = &sc->sc_transfers; 1753 1754 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1755 1756 if (__predict_false(sc->sc_bus.ub_usepolling)) 1757 wait_time = 12000; 1758 1759 while (t->pend <= wait_time) { 1760 DLOG(D_WAIT, "waiting... frame %d pend %d flags %#x", 1761 t->frame, t->pend, t->flags, 0); 1762 LK_SLASSERT(t->flags & F_ACTIVE, sc, NULL, NULL, return); 1763 LK_SLASSERT(t->flags & (F_AINPROG|F_BINPROG), sc, NULL, NULL, 1764 return); 1765 slhci_dointr(sc); 1766 } 1767 DLOG(D_WAIT, "... done", 0, 0, 0, 0); 1768 } 1769 1770 static int 1771 slhci_dointr(struct slhci_softc *sc) 1772 { 1773 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1774 struct slhci_transfers *t; 1775 struct slhci_pipe *tosp; 1776 uint8_t r; 1777 1778 t = &sc->sc_transfers; 1779 1780 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1781 1782 if (sc->sc_ier == 0) { 1783 DLOG(D_INTR, "sc_ier is zero", 0, 0, 0, 0); 1784 return 0; 1785 } 1786 1787 r = slhci_read(sc, SL11_ISR); 1788 1789 #ifdef SLHCI_DEBUG 1790 if (slhcidebug & SLHCI_D_INTR && r & sc->sc_ier && 1791 ((r & ~(SL11_ISR_SOF|SL11_ISR_DATA)) || slhcidebug & SLHCI_D_SOF)) { 1792 uint8_t e, f; 1793 1794 e = slhci_read(sc, SL11_IER); 1795 f = slhci_read(sc, SL11_CTRL); 1796 DDOLOG("Flags=%#x IER=%#x ISR=%#x CTRL=%#x", t->flags, e, r, f); 1797 DDOLOGCTRL(f); 1798 DDOLOGISR(r); 1799 } 1800 #endif 1801 1802 /* 1803 * check IER for corruption occasionally. Assume that the above 1804 * sc_ier == 0 case works correctly. 1805 */ 1806 if (__predict_false(sc->sc_ier_check++ > SLHCI_IER_CHECK_FREQUENCY)) { 1807 sc->sc_ier_check = 0; 1808 if (sc->sc_ier != slhci_read(sc, SL11_IER)) { 1809 printf("%s: IER value corrupted! halted\n", 1810 SC_NAME(sc)); 1811 DDOLOG("IER value corrupted! halted", 0, 0, 0, 0); 1812 slhci_halt(sc, NULL, NULL); 1813 return 1; 1814 } 1815 } 1816 1817 r &= sc->sc_ier; 1818 1819 if (r == 0) { 1820 DLOG(D_INTR, "r is zero", 0, 0, 0, 0); 1821 return 0; 1822 } 1823 1824 sc->sc_ier_check = 0; 1825 1826 slhci_write(sc, SL11_ISR, r); 1827 BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); 1828 1829 /* If we have an insertion event we do not care about anything else. */ 1830 if (__predict_false(r & SL11_ISR_INSERT)) { 1831 slhci_insert(sc); 1832 DLOG(D_INTR, "... done", 0, 0, 0, 0); 1833 return 1; 1834 } 1835 1836 stop_cc_time(&t_intr); 1837 start_cc_time(&t_intr, r); 1838 1839 if (r & SL11_ISR_SOF) { 1840 t->frame++; 1841 1842 gcq_merge_tail(&t->q[Q_CB], &t->q[Q_NEXT_CB]); 1843 1844 /* 1845 * SOFCHECK flags are cleared in tstart. Two flags are needed 1846 * since the first SOF interrupt processed after the transfer 1847 * is started might have been generated before the transfer 1848 * was started. 1849 */ 1850 if (__predict_false(t->flags & F_SOFCHECK2 && t->flags & 1851 (F_AINPROG|F_BINPROG))) { 1852 printf("%s: Missed transfer completion. halted\n", 1853 SC_NAME(sc)); 1854 DDOLOG("Missed transfer completion. halted", 0, 0, 0, 1855 0); 1856 slhci_halt(sc, NULL, NULL); 1857 return 1; 1858 } else if (t->flags & F_SOFCHECK1) { 1859 t->flags |= F_SOFCHECK2; 1860 } else 1861 t->flags |= F_SOFCHECK1; 1862 1863 if (t->flags & F_CHANGE) 1864 t->flags |= F_ROOTINTR; 1865 1866 while (__predict_true(GOT_FIRST_TO(tosp, t)) && 1867 __predict_false(tosp->to_frame <= t->frame)) { 1868 tosp->xfer->ux_status = USBD_TIMEOUT; 1869 slhci_do_abort(sc, tosp, tosp->xfer); 1870 enter_callback(t, tosp); 1871 } 1872 1873 /* 1874 * Start any waiting transfers right away. If none, we will 1875 * start any new transfers later. 1876 */ 1877 slhci_tstart(sc); 1878 } 1879 1880 if (r & (SL11_ISR_USBA|SL11_ISR_USBB)) { 1881 int ab; 1882 1883 if ((r & (SL11_ISR_USBA|SL11_ISR_USBB)) == 1884 (SL11_ISR_USBA|SL11_ISR_USBB)) { 1885 if (!(t->flags & (F_AINPROG|F_BINPROG))) 1886 return 1; /* presume card pulled */ 1887 1888 LK_SLASSERT((t->flags & (F_AINPROG|F_BINPROG)) != 1889 (F_AINPROG|F_BINPROG), sc, NULL, NULL, return 1); 1890 1891 /* 1892 * This should never happen (unless card removal just 1893 * occurred) but appeared frequently when both 1894 * transfers were started at the same time and was 1895 * accompanied by data corruption. It still happens 1896 * at times. I have not seen data correption except 1897 * when the STATUS bit gets set, which now causes the 1898 * driver to halt, however this should still not 1899 * happen so the warning is kept. See comment in 1900 * abdone, below. 1901 */ 1902 printf("%s: Transfer reported done but not started! " 1903 "Verify data integrity if not detaching. " 1904 " flags %#x r %x\n", SC_NAME(sc), t->flags, r); 1905 1906 if (!(t->flags & F_AINPROG)) 1907 r &= ~SL11_ISR_USBA; 1908 else 1909 r &= ~SL11_ISR_USBB; 1910 } 1911 t->pend = INT_MAX; 1912 1913 if (r & SL11_ISR_USBA) 1914 ab = A; 1915 else 1916 ab = B; 1917 1918 /* 1919 * This happens when a low speed device is attached to 1920 * a hub with chip rev 1.5. SOF stops, but a few transfers 1921 * still work before causing this error. 1922 */ 1923 if (!(t->flags & (ab ? F_BINPROG : F_AINPROG))) { 1924 printf("%s: %s done but not in progress! halted\n", 1925 SC_NAME(sc), ab ? "B" : "A"); 1926 DDOLOG("AB=%d done but not in progress! halted", ab, 1927 0, 0, 0); 1928 slhci_halt(sc, NULL, NULL); 1929 return 1; 1930 } 1931 1932 t->flags &= ~(ab ? F_BINPROG : F_AINPROG); 1933 slhci_tstart(sc); 1934 stop_cc_time(&t_ab[ab]); 1935 start_cc_time(&t_abdone, t->flags); 1936 slhci_abdone(sc, ab); 1937 stop_cc_time(&t_abdone); 1938 } 1939 1940 slhci_dotransfer(sc); 1941 1942 DLOG(D_INTR, "... done", 0, 0, 0, 0); 1943 1944 return 1; 1945 } 1946 1947 static void 1948 slhci_abdone(struct slhci_softc *sc, int ab) 1949 { 1950 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 1951 struct slhci_transfers *t; 1952 struct slhci_pipe *spipe; 1953 struct usbd_xfer *xfer; 1954 uint8_t status, buf_start; 1955 uint8_t *target_buf; 1956 unsigned int actlen; 1957 int head; 1958 1959 t = &sc->sc_transfers; 1960 1961 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1962 1963 DLOG(D_TRACE, "ABDONE flags %#x", t->flags, 0,0,0); 1964 1965 DLOG(D_MSG, "DONE AB=%d spipe %p len %d xfer %p", ab, t->spipe[ab], 1966 t->len[ab], t->spipe[ab] ? t->spipe[ab]->xfer : NULL); 1967 1968 spipe = t->spipe[ab]; 1969 1970 /* 1971 * skip this one if aborted; do not call return from the rest of the 1972 * function unless halting, else t->len will not be cleared. 1973 */ 1974 if (spipe == NULL) 1975 goto done; 1976 1977 t->spipe[ab] = NULL; 1978 1979 xfer = spipe->xfer; 1980 1981 gcq_remove(&spipe->to); 1982 1983 LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); 1984 1985 status = slhci_read(sc, slhci_tregs[ab][STAT]); 1986 1987 /* 1988 * I saw no status or remaining length greater than the requested 1989 * length in early driver versions in circumstances I assumed caused 1990 * excess power draw. I am no longer able to reproduce this when 1991 * causing excess power draw circumstances. 1992 * 1993 * Disabling a power check and attaching aue to a keyboard and hub 1994 * that is directly attached (to CFU1U, 100mA max, aue 160mA, keyboard 1995 * 98mA) sometimes works and sometimes fails to configure. After 1996 * removing the aue and attaching a self-powered umass dvd reader 1997 * (unknown if it draws power from the host also) soon a single Error 1998 * status occurs then only timeouts. The controller soon halts freeing 1999 * memory due to being ONQU instead of BUSY. This may be the same 2000 * basic sequence that caused the no status/bad length errors. The 2001 * umass device seems to work (better at least) with the keyboard hub 2002 * when not first attaching aue (tested once reading an approximately 2003 * 200MB file). 2004 * 2005 * Overflow can indicate that the device and host disagree about how 2006 * much data has been transfered. This may indicate a problem at any 2007 * point during the transfer, not just when the error occurs. It may 2008 * indicate data corruption. A warning message is printed. 2009 * 2010 * Trying to use both A and B transfers at the same time results in 2011 * incorrect transfer completion ISR reports and the status will then 2012 * include SL11_EPSTAT_SETUP, which is apparently set while the 2013 * transfer is in progress. I also noticed data corruption, even 2014 * after waiting for the transfer to complete. The driver now avoids 2015 * trying to start both at the same time. 2016 * 2017 * I had accidently initialized the B registers before they were valid 2018 * in some driver versions. Since every other performance enhancing 2019 * feature has been confirmed buggy in the errata doc, I have not 2020 * tried both transfers at once again with the documented 2021 * initialization order. 2022 * 2023 * However, I have seen this problem again ("done but not started" 2024 * errors), which in some cases cases the SETUP status bit to remain 2025 * set on future transfers. In other cases, the SETUP bit is not set 2026 * and no data corruption occurs. This occured while using both umass 2027 * and aue on a powered hub (maybe triggered by some local activity 2028 * also) and needs several reads of the 200MB file to trigger. The 2029 * driver now halts if SETUP is detected. 2030 */ 2031 2032 actlen = 0; 2033 2034 if (__predict_false(!status)) { 2035 DDOLOG("no status! xfer %p spipe %p", xfer, spipe, 0,0); 2036 printf("%s: no status! halted\n", SC_NAME(sc)); 2037 slhci_halt(sc, spipe, xfer); 2038 return; 2039 } 2040 2041 #ifdef SLHCI_DEBUG 2042 if ((slhcidebug & SLHCI_D_NAK) || 2043 (status & SL11_EPSTAT_ERRBITS) != SL11_EPSTAT_NAK) { 2044 DDOLOG("USB Status = %#.2x", status, 0, 0, 0); 2045 DDOLOGSTATUS(status); 2046 } 2047 #endif 2048 2049 if (!(status & SL11_EPSTAT_ERRBITS)) { 2050 unsigned int cont = slhci_read(sc, slhci_tregs[ab][CONT]); 2051 unsigned int len = spipe->tregs[LEN]; 2052 DLOG(D_XFER, "cont %d len %d", cont, len, 0, 0); 2053 if ((status & SL11_EPSTAT_OVERFLOW) || cont > len) { 2054 DDOLOG("overflow - cont %d len %d xfer->ux_length %d " 2055 "xfer->actlen %d", cont, len, xfer->ux_length, 2056 xfer->ux_actlen); 2057 printf("%s: overflow cont %d len %d xfer->ux_length" 2058 " %d xfer->ux_actlen %d\n", SC_NAME(sc), cont, 2059 len, xfer->ux_length, xfer->ux_actlen); 2060 actlen = len; 2061 } else { 2062 actlen = len - cont; 2063 } 2064 spipe->nerrs = 0; 2065 } 2066 2067 /* Actual copyin done after starting next transfer. */ 2068 if (actlen && (spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) { 2069 target_buf = spipe->buffer; 2070 buf_start = spipe->tregs[ADR]; 2071 } else { 2072 target_buf = NULL; 2073 buf_start = 0; /* XXX gcc uninitialized warnings */ 2074 } 2075 2076 if (status & SL11_EPSTAT_ERRBITS) { 2077 status &= SL11_EPSTAT_ERRBITS; 2078 if (status & SL11_EPSTAT_SETUP) { 2079 printf("%s: Invalid controller state detected! " 2080 "halted\n", SC_NAME(sc)); 2081 DDOLOG("Invalid controller state detected! " 2082 "halted", 0, 0, 0, 0); 2083 slhci_halt(sc, spipe, xfer); 2084 return; 2085 } else if (__predict_false(sc->sc_bus.ub_usepolling)) { 2086 head = Q_CALLBACKS; 2087 if (status & SL11_EPSTAT_STALL) 2088 xfer->ux_status = USBD_STALLED; 2089 else if (status & SL11_EPSTAT_TIMEOUT) 2090 xfer->ux_status = USBD_TIMEOUT; 2091 else if (status & SL11_EPSTAT_NAK) 2092 head = Q_NEXT_CB; 2093 else 2094 xfer->ux_status = USBD_IOERROR; 2095 } else if (status & SL11_EPSTAT_NAK) { 2096 int i = spipe->pipe.up_interval; 2097 if (i == 0) 2098 i = 1; 2099 DDOLOG("xfer %p spipe %p NAK delay by %d", xfer, spipe, 2100 i, 0); 2101 spipe->lastframe = spipe->frame = t->frame + i; 2102 slhci_queue_timed(sc, spipe); 2103 goto queued; 2104 } else if (++spipe->nerrs > SLHCI_MAX_RETRIES || 2105 (status & SL11_EPSTAT_STALL)) { 2106 DDOLOG("xfer %p spipe %p nerrs %d", xfer, spipe, 2107 spipe->nerrs, 0); 2108 if (status & SL11_EPSTAT_STALL) 2109 xfer->ux_status = USBD_STALLED; 2110 else if (status & SL11_EPSTAT_TIMEOUT) 2111 xfer->ux_status = USBD_TIMEOUT; 2112 else 2113 xfer->ux_status = USBD_IOERROR; 2114 2115 DLOG(D_ERR, "Max retries reached! status %#x " 2116 "xfer->ux_status %d", status, xfer->ux_status, 0, 2117 0); 2118 DDOLOGSTATUS(status); 2119 2120 head = Q_CALLBACKS; 2121 } else { 2122 head = Q_NEXT_CB; 2123 } 2124 } else if (spipe->ptype == PT_CTRL_SETUP) { 2125 spipe->tregs[PID] = spipe->newpid; 2126 2127 if (xfer->ux_length) { 2128 LK_SLASSERT(spipe->newlen[1] != 0, sc, spipe, xfer, 2129 return); 2130 spipe->tregs[LEN] = spipe->newlen[1]; 2131 spipe->bustime = spipe->newbustime[1]; 2132 spipe->buffer = xfer->ux_buf; 2133 spipe->ptype = PT_CTRL_DATA; 2134 } else { 2135 status_setup: 2136 /* CTRL_DATA swaps direction in PID then jumps here */ 2137 spipe->tregs[LEN] = 0; 2138 if (spipe->pflags & PF_LS) 2139 spipe->bustime = SLHCI_LS_CONST; 2140 else 2141 spipe->bustime = SLHCI_FS_CONST; 2142 spipe->ptype = PT_CTRL_STATUS; 2143 spipe->buffer = NULL; 2144 } 2145 2146 /* Status or first data packet must be DATA1. */ 2147 spipe->control |= SL11_EPCTRL_DATATOGGLE; 2148 if ((spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) 2149 spipe->control &= ~SL11_EPCTRL_DIRECTION; 2150 else 2151 spipe->control |= SL11_EPCTRL_DIRECTION; 2152 2153 head = Q_CB; 2154 } else if (spipe->ptype == PT_CTRL_STATUS) { 2155 head = Q_CALLBACKS; 2156 } else { /* bulk, intr, control data */ 2157 xfer->ux_actlen += actlen; 2158 spipe->control ^= SL11_EPCTRL_DATATOGGLE; 2159 2160 if (actlen == spipe->tregs[LEN] && 2161 (xfer->ux_length > xfer->ux_actlen || spipe->wantshort)) { 2162 spipe->buffer += actlen; 2163 LK_SLASSERT(xfer->ux_length >= xfer->ux_actlen, sc, 2164 spipe, xfer, return); 2165 if (xfer->ux_length - xfer->ux_actlen < actlen) { 2166 spipe->wantshort = 0; 2167 spipe->tregs[LEN] = spipe->newlen[0]; 2168 spipe->bustime = spipe->newbustime[0]; 2169 LK_SLASSERT(xfer->ux_actlen + 2170 spipe->tregs[LEN] == xfer->ux_length, sc, 2171 spipe, xfer, return); 2172 } 2173 head = Q_CB; 2174 } else if (spipe->ptype == PT_CTRL_DATA) { 2175 spipe->tregs[PID] ^= SLHCI_PID_SWAP_IN_OUT; 2176 goto status_setup; 2177 } else { 2178 if (spipe->ptype == PT_INTR) { 2179 spipe->lastframe += 2180 spipe->pipe.up_interval; 2181 /* 2182 * If ack, we try to keep the 2183 * interrupt rate by using lastframe 2184 * instead of the current frame. 2185 */ 2186 spipe->frame = spipe->lastframe + 2187 spipe->pipe.up_interval; 2188 } 2189 2190 /* 2191 * Set the toggle for the next transfer. It 2192 * has already been toggled above, so the 2193 * current setting will apply to the next 2194 * transfer. 2195 */ 2196 if (spipe->control & SL11_EPCTRL_DATATOGGLE) 2197 spipe->pflags |= PF_TOGGLE; 2198 else 2199 spipe->pflags &= ~PF_TOGGLE; 2200 2201 head = Q_CALLBACKS; 2202 } 2203 } 2204 2205 if (head == Q_CALLBACKS) { 2206 gcq_remove(&spipe->to); 2207 2208 if (xfer->ux_status == USBD_IN_PROGRESS) { 2209 LK_SLASSERT(xfer->ux_actlen <= xfer->ux_length, sc, 2210 spipe, xfer, return); 2211 xfer->ux_status = USBD_NORMAL_COMPLETION; 2212 } 2213 } 2214 2215 enter_q(t, spipe, head); 2216 2217 queued: 2218 if (target_buf != NULL) { 2219 slhci_dotransfer(sc); 2220 start_cc_time(&t_copy_from_dev, actlen); 2221 slhci_read_multi(sc, buf_start, target_buf, actlen); 2222 stop_cc_time(&t_copy_from_dev); 2223 DLOGBUF(D_BUF, target_buf, actlen); 2224 t->pend -= SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(actlen); 2225 } 2226 2227 done: 2228 t->len[ab] = -1; 2229 } 2230 2231 static void 2232 slhci_tstart(struct slhci_softc *sc) 2233 { 2234 struct slhci_transfers *t; 2235 struct slhci_pipe *spipe; 2236 int remaining_bustime; 2237 2238 t = &sc->sc_transfers; 2239 2240 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2241 2242 if (!(t->flags & (F_AREADY|F_BREADY))) 2243 return; 2244 2245 if (t->flags & (F_AINPROG|F_BINPROG|F_DISABLED)) 2246 return; 2247 2248 /* 2249 * We have about 6 us to get from the bus time check to 2250 * starting the transfer or we might babble or the chip might fail to 2251 * signal transfer complete. This leaves no time for any other 2252 * interrupts. 2253 */ 2254 remaining_bustime = (int)(slhci_read(sc, SL811_CSOF)) << 6; 2255 remaining_bustime -= SLHCI_END_BUSTIME; 2256 2257 /* 2258 * Start one transfer only, clearing any aborted transfers that are 2259 * not yet in progress and skipping missed isoc. It is easier to copy 2260 * & paste most of the A/B sections than to make the logic work 2261 * otherwise and this allows better constant use. 2262 */ 2263 if (t->flags & F_AREADY) { 2264 spipe = t->spipe[A]; 2265 if (spipe == NULL) { 2266 t->flags &= ~F_AREADY; 2267 t->len[A] = -1; 2268 } else if (remaining_bustime >= spipe->bustime) { 2269 t->flags &= ~(F_AREADY|F_SOFCHECK1|F_SOFCHECK2); 2270 t->flags |= F_AINPROG; 2271 start_cc_time(&t_ab[A], spipe->tregs[LEN]); 2272 slhci_write(sc, SL11_E0CTRL, spipe->control); 2273 goto pend; 2274 } 2275 } 2276 if (t->flags & F_BREADY) { 2277 spipe = t->spipe[B]; 2278 if (spipe == NULL) { 2279 t->flags &= ~F_BREADY; 2280 t->len[B] = -1; 2281 } else if (remaining_bustime >= spipe->bustime) { 2282 t->flags &= ~(F_BREADY|F_SOFCHECK1|F_SOFCHECK2); 2283 t->flags |= F_BINPROG; 2284 start_cc_time(&t_ab[B], spipe->tregs[LEN]); 2285 slhci_write(sc, SL11_E1CTRL, spipe->control); 2286 pend: 2287 t->pend = spipe->bustime; 2288 } 2289 } 2290 } 2291 2292 static void 2293 slhci_dotransfer(struct slhci_softc *sc) 2294 { 2295 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2296 struct slhci_transfers *t; 2297 struct slhci_pipe *spipe; 2298 int ab, i; 2299 2300 t = &sc->sc_transfers; 2301 2302 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2303 2304 while ((t->len[A] == -1 || t->len[B] == -1) && 2305 (GOT_FIRST_TIMED_COND(spipe, t, spipe->frame <= t->frame) || 2306 GOT_FIRST_CB(spipe, t))) { 2307 LK_SLASSERT(spipe->xfer != NULL, sc, spipe, NULL, return); 2308 LK_SLASSERT(spipe->ptype != PT_ROOT_CTRL && spipe->ptype != 2309 PT_ROOT_INTR, sc, spipe, NULL, return); 2310 2311 /* Check that this transfer can fit in the remaining memory. */ 2312 if (t->len[A] + t->len[B] + spipe->tregs[LEN] + 1 > 2313 SL11_MAX_PACKET_SIZE) { 2314 DLOG(D_XFER, "Transfer does not fit. alen %d blen %d " 2315 "len %d", t->len[A], t->len[B], spipe->tregs[LEN], 2316 0); 2317 return; 2318 } 2319 2320 gcq_remove(&spipe->xq); 2321 2322 if (t->len[A] == -1) { 2323 ab = A; 2324 spipe->tregs[ADR] = SL11_BUFFER_START; 2325 } else { 2326 ab = B; 2327 spipe->tregs[ADR] = SL11_BUFFER_END - 2328 spipe->tregs[LEN]; 2329 } 2330 2331 t->len[ab] = spipe->tregs[LEN]; 2332 2333 if (spipe->tregs[LEN] && (spipe->tregs[PID] & SL11_PID_BITS) 2334 != SL11_PID_IN) { 2335 start_cc_time(&t_copy_to_dev, 2336 spipe->tregs[LEN]); 2337 slhci_write_multi(sc, spipe->tregs[ADR], 2338 spipe->buffer, spipe->tregs[LEN]); 2339 stop_cc_time(&t_copy_to_dev); 2340 t->pend -= SLHCI_FS_CONST + 2341 SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); 2342 } 2343 2344 DLOG(D_MSG, "NEW TRANSFER AB=%d flags %#x alen %d blen %d", 2345 ab, t->flags, t->len[0], t->len[1]); 2346 2347 if (spipe->tregs[LEN]) 2348 i = 0; 2349 else 2350 i = 1; 2351 2352 for (; i <= 3; i++) 2353 if (t->current_tregs[ab][i] != spipe->tregs[i]) { 2354 t->current_tregs[ab][i] = spipe->tregs[i]; 2355 slhci_write(sc, slhci_tregs[ab][i], 2356 spipe->tregs[i]); 2357 } 2358 2359 DLOG(D_SXFER, "Transfer len %d pid %#x dev %d type %d", 2360 spipe->tregs[LEN], spipe->tregs[PID], spipe->tregs[DEV], 2361 spipe->ptype); 2362 2363 t->spipe[ab] = spipe; 2364 t->flags |= ab ? F_BREADY : F_AREADY; 2365 2366 slhci_tstart(sc); 2367 } 2368 } 2369 2370 /* 2371 * slhci_callback is called after the lock is taken. 2372 */ 2373 static void 2374 slhci_callback(struct slhci_softc *sc) 2375 { 2376 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2377 struct slhci_transfers *t; 2378 struct slhci_pipe *spipe; 2379 struct usbd_xfer *xfer; 2380 2381 t = &sc->sc_transfers; 2382 2383 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2384 2385 DLOG(D_SOFT, "CB flags %#x", t->flags, 0,0,0); 2386 for (;;) { 2387 if (__predict_false(t->flags & F_ROOTINTR)) { 2388 t->flags &= ~F_ROOTINTR; 2389 if (t->rootintr != NULL) { 2390 u_char *p; 2391 2392 p = t->rootintr->ux_buf; 2393 p[0] = 2; 2394 t->rootintr->ux_actlen = 1; 2395 t->rootintr->ux_status = USBD_NORMAL_COMPLETION; 2396 xfer = t->rootintr; 2397 goto do_callback; 2398 } 2399 } 2400 2401 2402 if (!DEQUEUED_CALLBACK(spipe, t)) 2403 return; 2404 2405 xfer = spipe->xfer; 2406 LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); 2407 spipe->xfer = NULL; 2408 DLOG(D_XFER, "xfer callback length %d actlen %d spipe %p " 2409 "type %d", xfer->ux_length, xfer->ux_actlen, spipe, 2410 spipe->ptype); 2411 do_callback: 2412 slhci_do_callback(sc, xfer); 2413 } 2414 } 2415 2416 static void 2417 slhci_enter_xfer(struct slhci_softc *sc, struct slhci_pipe *spipe) 2418 { 2419 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2420 struct slhci_transfers *t; 2421 2422 t = &sc->sc_transfers; 2423 2424 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2425 2426 if (__predict_false(t->flags & F_DISABLED) || 2427 __predict_false(spipe->pflags & PF_GONE)) { 2428 DLOG(D_MSG, "slhci_enter_xfer: DISABLED or GONE", 0,0,0,0); 2429 spipe->xfer->ux_status = USBD_CANCELLED; 2430 } 2431 2432 if (spipe->xfer->ux_status == USBD_IN_PROGRESS) { 2433 if (spipe->xfer->ux_timeout) { 2434 spipe->to_frame = t->frame + spipe->xfer->ux_timeout; 2435 slhci_xfer_timer(sc, spipe); 2436 } 2437 if (spipe->pipe.up_interval) 2438 slhci_queue_timed(sc, spipe); 2439 else 2440 enter_q(t, spipe, Q_CB); 2441 } else 2442 enter_callback(t, spipe); 2443 } 2444 2445 static void 2446 slhci_enter_xfers(struct slhci_softc *sc) 2447 { 2448 struct slhci_pipe *spipe; 2449 2450 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2451 2452 while (DEQUEUED_WAITQ(spipe, sc)) 2453 slhci_enter_xfer(sc, spipe); 2454 } 2455 2456 static void 2457 slhci_queue_timed(struct slhci_softc *sc, struct slhci_pipe *spipe) 2458 { 2459 struct slhci_transfers *t; 2460 struct gcq *q; 2461 struct slhci_pipe *spp; 2462 2463 t = &sc->sc_transfers; 2464 2465 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2466 2467 FIND_TIMED(q, t, spp, spp->frame > spipe->frame); 2468 gcq_insert_before(q, &spipe->xq); 2469 } 2470 2471 static void 2472 slhci_xfer_timer(struct slhci_softc *sc, struct slhci_pipe *spipe) 2473 { 2474 struct slhci_transfers *t; 2475 struct gcq *q; 2476 struct slhci_pipe *spp; 2477 2478 t = &sc->sc_transfers; 2479 2480 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2481 2482 FIND_TO(q, t, spp, spp->to_frame >= spipe->to_frame); 2483 gcq_insert_before(q, &spipe->to); 2484 } 2485 2486 static void 2487 slhci_callback_schedule(struct slhci_softc *sc) 2488 { 2489 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2490 struct slhci_transfers *t; 2491 2492 t = &sc->sc_transfers; 2493 2494 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2495 2496 if (t->flags & F_ACTIVE) 2497 slhci_do_callback_schedule(sc); 2498 } 2499 2500 static void 2501 slhci_do_callback_schedule(struct slhci_softc *sc) 2502 { 2503 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2504 struct slhci_transfers *t; 2505 2506 t = &sc->sc_transfers; 2507 2508 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2509 2510 DLOG(D_MSG, "flags %#x", t->flags, 0, 0, 0); 2511 if (!(t->flags & F_CALLBACK)) { 2512 t->flags |= F_CALLBACK; 2513 softint_schedule(sc->sc_cb_softintr); 2514 } 2515 } 2516 2517 #if 0 2518 /* must be called with lock taken. */ 2519 /* XXX static */ void 2520 slhci_pollxfer(struct slhci_softc *sc, struct usbd_xfer *xfer) 2521 { 2522 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2523 slhci_dotransfer(sc); 2524 do { 2525 slhci_dointr(sc); 2526 } while (xfer->ux_status == USBD_IN_PROGRESS); 2527 slhci_do_callback(sc, xfer); 2528 } 2529 #endif 2530 2531 static usbd_status 2532 slhci_do_poll(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2533 usbd_xfer *xfer) 2534 { 2535 slhci_waitintr(sc, 0); 2536 2537 return USBD_NORMAL_COMPLETION; 2538 } 2539 2540 static usbd_status 2541 slhci_lsvh_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2542 usbd_xfer *xfer) 2543 { 2544 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2545 struct slhci_transfers *t; 2546 2547 t = &sc->sc_transfers; 2548 2549 if (!(t->flags & F_LSVH_WARNED)) { 2550 printf("%s: Low speed device via hub disabled, " 2551 "see slhci(4)\n", SC_NAME(sc)); 2552 DDOLOG("Low speed device via hub disabled, " 2553 "see slhci(4)", SC_NAME(sc), 0,0,0); 2554 t->flags |= F_LSVH_WARNED; 2555 } 2556 return USBD_INVAL; 2557 } 2558 2559 static usbd_status 2560 slhci_isoc_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2561 usbd_xfer *xfer) 2562 { 2563 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2564 struct slhci_transfers *t; 2565 2566 t = &sc->sc_transfers; 2567 2568 if (!(t->flags & F_ISOC_WARNED)) { 2569 printf("%s: ISOC transfer not supported " 2570 "(see slhci(4))\n", SC_NAME(sc)); 2571 DDOLOG("ISOC transfer not supported " 2572 "(see slhci(4))", 0, 0, 0, 0); 2573 t->flags |= F_ISOC_WARNED; 2574 } 2575 return USBD_INVAL; 2576 } 2577 2578 static usbd_status 2579 slhci_open_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2580 usbd_xfer *xfer) 2581 { 2582 struct slhci_transfers *t; 2583 struct usbd_pipe *pipe; 2584 2585 t = &sc->sc_transfers; 2586 pipe = &spipe->pipe; 2587 2588 if (t->flags & F_DISABLED) 2589 return USBD_CANCELLED; 2590 else if (pipe->up_interval && !slhci_reserve_bustime(sc, spipe, 1)) 2591 return USBD_PENDING_REQUESTS; 2592 else { 2593 enter_all_pipes(t, spipe); 2594 return USBD_NORMAL_COMPLETION; 2595 } 2596 } 2597 2598 static usbd_status 2599 slhci_close_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2600 usbd_xfer *xfer) 2601 { 2602 struct usbd_pipe *pipe; 2603 2604 pipe = &spipe->pipe; 2605 2606 if (pipe->up_interval && spipe->ptype != PT_ROOT_INTR) 2607 slhci_reserve_bustime(sc, spipe, 0); 2608 gcq_remove(&spipe->ap); 2609 return USBD_NORMAL_COMPLETION; 2610 } 2611 2612 static usbd_status 2613 slhci_do_abort(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2614 usbd_xfer *xfer) 2615 { 2616 struct slhci_transfers *t; 2617 2618 t = &sc->sc_transfers; 2619 2620 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2621 2622 if (spipe->xfer == xfer) { 2623 if (spipe->ptype == PT_ROOT_INTR) { 2624 if (t->rootintr == spipe->xfer) /* XXX assert? */ 2625 t->rootintr = NULL; 2626 } else { 2627 gcq_remove(&spipe->to); 2628 gcq_remove(&spipe->xq); 2629 2630 if (t->spipe[A] == spipe) { 2631 t->spipe[A] = NULL; 2632 if (!(t->flags & F_AINPROG)) 2633 t->len[A] = -1; 2634 } else if (t->spipe[B] == spipe) { 2635 t->spipe[B] = NULL; 2636 if (!(t->flags & F_BINPROG)) 2637 t->len[B] = -1; 2638 } 2639 } 2640 2641 if (xfer->ux_status != USBD_TIMEOUT) { 2642 spipe->xfer = NULL; 2643 spipe->pipe.up_repeat = 0; /* XXX timeout? */ 2644 } 2645 } 2646 2647 return USBD_NORMAL_COMPLETION; 2648 } 2649 2650 /* 2651 * Called to deactivate or stop use of the controller instead of panicking. 2652 * Will cancel the xfer correctly even when not on a list. 2653 */ 2654 static usbd_status 2655 slhci_halt(struct slhci_softc *sc, struct slhci_pipe *spipe, 2656 struct usbd_xfer *xfer) 2657 { 2658 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2659 struct slhci_transfers *t; 2660 2661 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2662 2663 t = &sc->sc_transfers; 2664 2665 DDOLOG("Halt! sc %p spipe %p xfer %p", sc, spipe, xfer, 0); 2666 2667 if (spipe != NULL) 2668 slhci_log_spipe(spipe); 2669 2670 if (xfer != NULL) 2671 slhci_log_xfer(xfer); 2672 2673 if (spipe != NULL && xfer != NULL && spipe->xfer == xfer && 2674 !gcq_onlist(&spipe->xq) && t->spipe[A] != spipe && t->spipe[B] != 2675 spipe) { 2676 xfer->ux_status = USBD_CANCELLED; 2677 enter_callback(t, spipe); 2678 } 2679 2680 if (t->flags & F_ACTIVE) { 2681 slhci_intrchange(sc, 0); 2682 /* 2683 * leave power on when halting in case flash devices or disks 2684 * are attached, which may be writing and could be damaged 2685 * by abrupt power loss. The root hub clear power feature 2686 * should still work after halting. 2687 */ 2688 } 2689 2690 t->flags &= ~F_ACTIVE; 2691 t->flags |= F_UDISABLED; 2692 if (!(t->flags & F_NODEV)) 2693 t->flags |= F_NODEV|F_CCONNECT|F_ROOTINTR; 2694 slhci_drain(sc); 2695 2696 /* One last callback for the drain and device removal. */ 2697 slhci_do_callback_schedule(sc); 2698 2699 return USBD_NORMAL_COMPLETION; 2700 } 2701 2702 /* 2703 * There are three interrupt states: no interrupts during reset and after 2704 * device deactivation, INSERT only for no device present but power on, and 2705 * SOF, INSERT, ADONE, and BDONE when device is present. 2706 */ 2707 static void 2708 slhci_intrchange(struct slhci_softc *sc, uint8_t new_ier) 2709 { 2710 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2711 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2712 if (sc->sc_ier != new_ier) { 2713 DLOG(D_INTR, "New IER %#x", new_ier, 0, 0, 0); 2714 sc->sc_ier = new_ier; 2715 slhci_write(sc, SL11_IER, new_ier); 2716 BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); 2717 } 2718 } 2719 2720 /* 2721 * Drain: cancel all pending transfers and put them on the callback list and 2722 * set the UDISABLED flag. UDISABLED is cleared only by reset. 2723 */ 2724 static void 2725 slhci_drain(struct slhci_softc *sc) 2726 { 2727 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2728 struct slhci_transfers *t; 2729 struct slhci_pipe *spipe; 2730 struct gcq *q; 2731 int i; 2732 2733 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2734 2735 t = &sc->sc_transfers; 2736 2737 DLOG(D_MSG, "DRAIN flags %#x", t->flags, 0,0,0); 2738 2739 t->pend = INT_MAX; 2740 2741 for (i=0; i<=1; i++) { 2742 t->len[i] = -1; 2743 if (t->spipe[i] != NULL) { 2744 enter_callback(t, t->spipe[i]); 2745 t->spipe[i] = NULL; 2746 } 2747 } 2748 2749 /* Merge the queues into the callback queue. */ 2750 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_CB]); 2751 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_NEXT_CB]); 2752 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->timed); 2753 2754 /* 2755 * Cancel all pipes. Note that not all of these may be on the 2756 * callback queue yet; some could be in slhci_start, for example. 2757 */ 2758 FOREACH_AP(q, t, spipe) { 2759 spipe->pflags |= PF_GONE; 2760 spipe->pipe.up_repeat = 0; 2761 spipe->pipe.up_aborting = 1; 2762 if (spipe->xfer != NULL) 2763 spipe->xfer->ux_status = USBD_CANCELLED; 2764 } 2765 2766 gcq_remove_all(&t->to); 2767 2768 t->flags |= F_UDISABLED; 2769 t->flags &= ~(F_AREADY|F_BREADY|F_AINPROG|F_BINPROG|F_LOWSPEED); 2770 } 2771 2772 /* 2773 * RESET: SL11_CTRL_RESETENGINE=1 and SL11_CTRL_JKSTATE=0 for 50ms 2774 * reconfigure SOF after reset, must wait 2.5us before USB bus activity (SOF) 2775 * check attached device speed. 2776 * must wait 100ms before USB transaction according to app note, 10ms 2777 * by spec. uhub does this delay 2778 * 2779 * Started from root hub set feature reset, which does step one. 2780 * ub_usepolling will call slhci_reset directly, otherwise the callout goes 2781 * through slhci_reset_entry. 2782 */ 2783 void 2784 slhci_reset(struct slhci_softc *sc) 2785 { 2786 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2787 struct slhci_transfers *t; 2788 struct slhci_pipe *spipe; 2789 struct gcq *q; 2790 uint8_t r, pol, ctrl; 2791 2792 t = &sc->sc_transfers; 2793 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2794 2795 stop_cc_time(&t_delay); 2796 2797 KASSERT(t->flags & F_ACTIVE); 2798 2799 start_cc_time(&t_delay, 0); 2800 stop_cc_time(&t_delay); 2801 2802 slhci_write(sc, SL11_CTRL, 0); 2803 start_cc_time(&t_delay, 3); 2804 DELAY(3); 2805 stop_cc_time(&t_delay); 2806 slhci_write(sc, SL11_ISR, 0xff); 2807 2808 r = slhci_read(sc, SL11_ISR); 2809 2810 if (r & SL11_ISR_INSERT) 2811 slhci_write(sc, SL11_ISR, SL11_ISR_INSERT); 2812 2813 if (r & SL11_ISR_NODEV) { 2814 DLOG(D_MSG, "NC", 0,0,0,0); 2815 /* 2816 * Normally, the hard interrupt insert routine will issue 2817 * CCONNECT, however we need to do it here if the detach 2818 * happened during reset. 2819 */ 2820 if (!(t->flags & F_NODEV)) 2821 t->flags |= F_CCONNECT|F_ROOTINTR|F_NODEV; 2822 slhci_intrchange(sc, SL11_IER_INSERT); 2823 } else { 2824 if (t->flags & F_NODEV) 2825 t->flags |= F_CCONNECT; 2826 t->flags &= ~(F_NODEV|F_LOWSPEED); 2827 if (r & SL11_ISR_DATA) { 2828 DLOG(D_MSG, "FS", 0,0,0,0); 2829 pol = ctrl = 0; 2830 } else { 2831 DLOG(D_MSG, "LS", 0,0,0,0); 2832 pol = SL811_CSOF_POLARITY; 2833 ctrl = SL11_CTRL_LOWSPEED; 2834 t->flags |= F_LOWSPEED; 2835 } 2836 2837 /* Enable SOF auto-generation */ 2838 t->frame = 0; /* write to SL811_CSOF will reset frame */ 2839 slhci_write(sc, SL11_SOFTIME, 0xe0); 2840 slhci_write(sc, SL811_CSOF, pol|SL811_CSOF_MASTER|0x2e); 2841 slhci_write(sc, SL11_CTRL, ctrl|SL11_CTRL_ENABLESOF); 2842 2843 /* 2844 * According to the app note, ARM must be set 2845 * for SOF generation to work. We initialize all 2846 * USBA registers here for current_tregs. 2847 */ 2848 slhci_write(sc, SL11_E0ADDR, SL11_BUFFER_START); 2849 slhci_write(sc, SL11_E0LEN, 0); 2850 slhci_write(sc, SL11_E0PID, SL11_PID_SOF); 2851 slhci_write(sc, SL11_E0DEV, 0); 2852 slhci_write(sc, SL11_E0CTRL, SL11_EPCTRL_ARM); 2853 2854 /* 2855 * Initialize B registers. This can't be done earlier since 2856 * they are not valid until the SL811_CSOF register is written 2857 * above due to SL11H compatability. 2858 */ 2859 slhci_write(sc, SL11_E1ADDR, SL11_BUFFER_END - 8); 2860 slhci_write(sc, SL11_E1LEN, 0); 2861 slhci_write(sc, SL11_E1PID, 0); 2862 slhci_write(sc, SL11_E1DEV, 0); 2863 2864 t->current_tregs[0][ADR] = SL11_BUFFER_START; 2865 t->current_tregs[0][LEN] = 0; 2866 t->current_tregs[0][PID] = SL11_PID_SOF; 2867 t->current_tregs[0][DEV] = 0; 2868 t->current_tregs[1][ADR] = SL11_BUFFER_END - 8; 2869 t->current_tregs[1][LEN] = 0; 2870 t->current_tregs[1][PID] = 0; 2871 t->current_tregs[1][DEV] = 0; 2872 2873 /* SOF start will produce USBA interrupt */ 2874 t->len[A] = 0; 2875 t->flags |= F_AINPROG; 2876 2877 slhci_intrchange(sc, SLHCI_NORMAL_INTERRUPTS); 2878 } 2879 2880 t->flags &= ~(F_UDISABLED|F_RESET); 2881 t->flags |= F_CRESET|F_ROOTINTR; 2882 FOREACH_AP(q, t, spipe) { 2883 spipe->pflags &= ~PF_GONE; 2884 spipe->pipe.up_aborting = 0; 2885 } 2886 DLOG(D_MSG, "RESET done flags %#x", t->flags, 0,0,0); 2887 } 2888 2889 2890 #ifdef SLHCI_DEBUG 2891 static int 2892 slhci_memtest(struct slhci_softc *sc) 2893 { 2894 enum { ASC, DESC, EITHER = ASC }; /* direction */ 2895 enum { READ, WRITE }; /* operation */ 2896 const char *ptr, *elem; 2897 size_t i; 2898 const int low = SL11_BUFFER_START, high = SL11_BUFFER_END; 2899 int addr = 0, dir = ASC, op = READ; 2900 /* Extended March C- test algorithm (SOFs also) */ 2901 const char test[] = "E(w0) A(r0w1r1) A(r1w0r0) D(r0w1) D(r1w0) E(r0)"; 2902 char c; 2903 const uint8_t dbs[] = { 0x00, 0x0f, 0x33, 0x55 }; /* data backgrounds */ 2904 uint8_t db; 2905 2906 /* Perform memory test for all data backgrounds. */ 2907 for (i = 0; i < __arraycount(dbs); i++) { 2908 ptr = test; 2909 elem = ptr; 2910 /* Walk test algorithm string. */ 2911 while ((c = *ptr++) != '\0') 2912 switch (tolower((int)c)) { 2913 case 'a': 2914 /* Address sequence is in ascending order. */ 2915 dir = ASC; 2916 break; 2917 case 'd': 2918 /* Address sequence is in descending order. */ 2919 dir = DESC; 2920 break; 2921 case 'e': 2922 /* Address sequence is in either order. */ 2923 dir = EITHER; 2924 break; 2925 case '(': 2926 /* Start of test element (sequence). */ 2927 elem = ptr; 2928 addr = (dir == ASC) ? low : high; 2929 break; 2930 case 'r': 2931 /* read operation */ 2932 op = READ; 2933 break; 2934 case 'w': 2935 /* write operation */ 2936 op = WRITE; 2937 break; 2938 case '0': 2939 case '1': 2940 /* 2941 * Execute previously set-up operation by 2942 * reading/writing non-inverted ('0') or 2943 * inverted ('1') data background. 2944 */ 2945 db = (c - '0') ? ~dbs[i] : dbs[i]; 2946 if (op == READ) { 2947 if (slhci_read(sc, addr) != db) 2948 return -1; 2949 } else 2950 slhci_write(sc, addr, db); 2951 break; 2952 case ')': 2953 /* 2954 * End of element: Repeat same element with next 2955 * address or continue to next element. 2956 */ 2957 addr = (dir == ASC) ? addr + 1 : addr - 1; 2958 if (addr >= low && addr <= high) 2959 ptr = elem; 2960 break; 2961 default: 2962 /* Do nothing. */ 2963 break; 2964 } 2965 } 2966 2967 return 0; 2968 } 2969 #endif 2970 2971 /* returns 1 if succeeded, 0 if failed, reserve == 0 is unreserve */ 2972 static int 2973 slhci_reserve_bustime(struct slhci_softc *sc, struct slhci_pipe *spipe, int 2974 reserve) 2975 { 2976 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 2977 struct slhci_transfers *t; 2978 int bustime, max_packet; 2979 2980 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2981 2982 t = &sc->sc_transfers; 2983 max_packet = UGETW(spipe->pipe.up_endpoint->ue_edesc->wMaxPacketSize); 2984 2985 if (spipe->pflags & PF_LS) 2986 bustime = SLHCI_LS_CONST + SLHCI_LS_DATA_TIME(max_packet); 2987 else 2988 bustime = SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(max_packet); 2989 2990 if (!reserve) { 2991 t->reserved_bustime -= bustime; 2992 #ifdef DIAGNOSTIC 2993 if (t->reserved_bustime < 0) { 2994 printf("%s: reserved_bustime %d < 0!\n", 2995 SC_NAME(sc), t->reserved_bustime); 2996 DDOLOG("reserved_bustime %d < 0!", 2997 t->reserved_bustime, 0, 0, 0); 2998 t->reserved_bustime = 0; 2999 } 3000 #endif 3001 return 1; 3002 } 3003 3004 if (t->reserved_bustime + bustime > SLHCI_RESERVED_BUSTIME) { 3005 if (ratecheck(&sc->sc_reserved_warn_rate, 3006 &reserved_warn_rate)) 3007 #ifdef SLHCI_NO_OVERTIME 3008 { 3009 printf("%s: Max reserved bus time exceeded! " 3010 "Erroring request.\n", SC_NAME(sc)); 3011 DDOLOG("%s: Max reserved bus time exceeded! " 3012 "Erroring request.", 0, 0, 0, 0); 3013 } 3014 return 0; 3015 #else 3016 { 3017 printf("%s: Reserved bus time exceeds %d!\n", 3018 SC_NAME(sc), SLHCI_RESERVED_BUSTIME); 3019 DDOLOG("Reserved bus time exceeds %d!", 3020 SLHCI_RESERVED_BUSTIME, 0, 0, 0); 3021 } 3022 #endif 3023 } 3024 3025 t->reserved_bustime += bustime; 3026 return 1; 3027 } 3028 3029 /* Device insertion/removal interrupt */ 3030 static void 3031 slhci_insert(struct slhci_softc *sc) 3032 { 3033 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3034 struct slhci_transfers *t; 3035 3036 t = &sc->sc_transfers; 3037 3038 KASSERT(mutex_owned(&sc->sc_intr_lock)); 3039 3040 if (t->flags & F_NODEV) 3041 slhci_intrchange(sc, 0); 3042 else { 3043 slhci_drain(sc); 3044 slhci_intrchange(sc, SL11_IER_INSERT); 3045 } 3046 t->flags ^= F_NODEV; 3047 t->flags |= F_ROOTINTR|F_CCONNECT; 3048 DLOG(D_MSG, "INSERT intr: flags after %#x", t->flags, 0,0,0); 3049 } 3050 3051 /* 3052 * Data structures and routines to emulate the root hub. 3053 */ 3054 3055 static usbd_status 3056 slhci_clear_feature(struct slhci_softc *sc, unsigned int what) 3057 { 3058 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3059 struct slhci_transfers *t; 3060 usbd_status error; 3061 3062 t = &sc->sc_transfers; 3063 error = USBD_NORMAL_COMPLETION; 3064 3065 KASSERT(mutex_owned(&sc->sc_intr_lock)); 3066 3067 if (what == UHF_PORT_POWER) { 3068 DLOG(D_MSG, "POWER_OFF", 0,0,0,0); 3069 t->flags &= ~F_POWER; 3070 if (!(t->flags & F_NODEV)) 3071 t->flags |= F_NODEV|F_CCONNECT|F_ROOTINTR; 3072 /* for x68k Nereid USB controller */ 3073 if (sc->sc_enable_power && (t->flags & F_REALPOWER)) { 3074 t->flags &= ~F_REALPOWER; 3075 sc->sc_enable_power(sc, POWER_OFF); 3076 } 3077 slhci_intrchange(sc, 0); 3078 slhci_drain(sc); 3079 } else if (what == UHF_C_PORT_CONNECTION) { 3080 t->flags &= ~F_CCONNECT; 3081 } else if (what == UHF_C_PORT_RESET) { 3082 t->flags &= ~F_CRESET; 3083 } else if (what == UHF_PORT_ENABLE) { 3084 slhci_drain(sc); 3085 } else if (what != UHF_PORT_SUSPEND) { 3086 DDOLOG("ClrPortFeatERR:value=%#.4x", what, 0,0,0); 3087 error = USBD_IOERROR; 3088 } 3089 3090 return error; 3091 } 3092 3093 static usbd_status 3094 slhci_set_feature(struct slhci_softc *sc, unsigned int what) 3095 { 3096 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3097 struct slhci_transfers *t; 3098 uint8_t r; 3099 3100 t = &sc->sc_transfers; 3101 3102 KASSERT(mutex_owned(&sc->sc_intr_lock)); 3103 3104 if (what == UHF_PORT_RESET) { 3105 if (!(t->flags & F_ACTIVE)) { 3106 DDOLOG("SET PORT_RESET when not ACTIVE!", 3107 0,0,0,0); 3108 return USBD_INVAL; 3109 } 3110 if (!(t->flags & F_POWER)) { 3111 DDOLOG("SET PORT_RESET without PORT_POWER! flags %p", 3112 t->flags, 0,0,0); 3113 return USBD_INVAL; 3114 } 3115 if (t->flags & F_RESET) 3116 return USBD_NORMAL_COMPLETION; 3117 DLOG(D_MSG, "RESET flags %#x", t->flags, 0,0,0); 3118 slhci_intrchange(sc, 0); 3119 slhci_drain(sc); 3120 slhci_write(sc, SL11_CTRL, SL11_CTRL_RESETENGINE); 3121 /* usb spec says delay >= 10ms, app note 50ms */ 3122 start_cc_time(&t_delay, 50000); 3123 if (sc->sc_bus.ub_usepolling) { 3124 DELAY(50000); 3125 slhci_reset(sc); 3126 } else { 3127 t->flags |= F_RESET; 3128 callout_schedule(&sc->sc_timer, max(mstohz(50), 2)); 3129 } 3130 } else if (what == UHF_PORT_SUSPEND) { 3131 printf("%s: USB Suspend not implemented!\n", SC_NAME(sc)); 3132 DDOLOG("USB Suspend not implemented!", 0, 0, 0, 0); 3133 } else if (what == UHF_PORT_POWER) { 3134 DLOG(D_MSG, "PORT_POWER", 0,0,0,0); 3135 /* for x68k Nereid USB controller */ 3136 if (!(t->flags & F_ACTIVE)) 3137 return USBD_INVAL; 3138 if (t->flags & F_POWER) 3139 return USBD_NORMAL_COMPLETION; 3140 if (!(t->flags & F_REALPOWER)) { 3141 if (sc->sc_enable_power) 3142 sc->sc_enable_power(sc, POWER_ON); 3143 t->flags |= F_REALPOWER; 3144 } 3145 t->flags |= F_POWER; 3146 r = slhci_read(sc, SL11_ISR); 3147 if (r & SL11_ISR_INSERT) 3148 slhci_write(sc, SL11_ISR, SL11_ISR_INSERT); 3149 if (r & SL11_ISR_NODEV) { 3150 slhci_intrchange(sc, SL11_IER_INSERT); 3151 t->flags |= F_NODEV; 3152 } else { 3153 t->flags &= ~F_NODEV; 3154 t->flags |= F_CCONNECT|F_ROOTINTR; 3155 } 3156 } else { 3157 DDOLOG("SetPortFeatERR=%#.8x", what, 0,0,0); 3158 return USBD_IOERROR; 3159 } 3160 3161 return USBD_NORMAL_COMPLETION; 3162 } 3163 3164 static void 3165 slhci_get_status(struct slhci_softc *sc, usb_port_status_t *ps) 3166 { 3167 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3168 struct slhci_transfers *t; 3169 unsigned int status, change; 3170 3171 t = &sc->sc_transfers; 3172 3173 KASSERT(mutex_owned(&sc->sc_intr_lock)); 3174 3175 /* 3176 * We do not have a way to detect over current or babble and 3177 * suspend is currently not implemented, so connect and reset 3178 * are the only changes that need to be reported. 3179 */ 3180 change = 0; 3181 if (t->flags & F_CCONNECT) 3182 change |= UPS_C_CONNECT_STATUS; 3183 if (t->flags & F_CRESET) 3184 change |= UPS_C_PORT_RESET; 3185 3186 status = 0; 3187 if (!(t->flags & F_NODEV)) 3188 status |= UPS_CURRENT_CONNECT_STATUS; 3189 if (!(t->flags & F_UDISABLED)) 3190 status |= UPS_PORT_ENABLED; 3191 if (t->flags & F_RESET) 3192 status |= UPS_RESET; 3193 if (t->flags & F_POWER) 3194 status |= UPS_PORT_POWER; 3195 if (t->flags & F_LOWSPEED) 3196 status |= UPS_LOW_SPEED; 3197 USETW(ps->wPortStatus, status); 3198 USETW(ps->wPortChange, change); 3199 DLOG(D_ROOT, "status=%#.4x, change=%#.4x", status, change, 0,0); 3200 } 3201 3202 static int 3203 slhci_roothub_ctrl(struct usbd_bus *bus, usb_device_request_t *req, 3204 void *buf, int buflen) 3205 { 3206 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3207 struct slhci_softc *sc = SLHCI_BUS2SC(bus); 3208 struct slhci_transfers *t = &sc->sc_transfers; 3209 usbd_status error = USBD_IOERROR; /* XXX should be STALL */ 3210 uint16_t len, value, index; 3211 uint8_t type; 3212 int actlen = 0; 3213 3214 len = UGETW(req->wLength); 3215 value = UGETW(req->wValue); 3216 index = UGETW(req->wIndex); 3217 3218 type = req->bmRequestType; 3219 3220 SLHCI_DEXEC(D_TRACE, slhci_log_req(req)); 3221 3222 /* 3223 * USB requests for hubs have two basic types, standard and class. 3224 * Each could potentially have recipients of device, interface, 3225 * endpoint, or other. For the hub class, CLASS_OTHER means the port 3226 * and CLASS_DEVICE means the hub. For standard requests, OTHER 3227 * is not used. Standard request are described in section 9.4 of the 3228 * standard, hub class requests in 11.16. Each request is either read 3229 * or write. 3230 * 3231 * Clear Feature, Set Feature, and Status are defined for each of the 3232 * used recipients. Get Descriptor and Set Descriptor are defined for 3233 * both standard and hub class types with different descriptors. 3234 * Other requests have only one defined recipient and type. These 3235 * include: Get/Set Address, Get/Set Configuration, Get/Set Interface, 3236 * and Synch Frame for standard requests and Get Bus State for hub 3237 * class. 3238 * 3239 * When a device is first powered up it has address 0 until the 3240 * address is set. 3241 * 3242 * Hubs are only allowed to support one interface and may not have 3243 * isochronous endpoints. The results of the related requests are 3244 * undefined. 3245 * 3246 * The standard requires invalid or unsupported requests to return 3247 * STALL in the data stage, however this does not work well with 3248 * current error handling. XXX 3249 * 3250 * Some unsupported fields: 3251 * Clear Hub Feature is for C_HUB_LOCAL_POWER and C_HUB_OVER_CURRENT 3252 * Set Device Features is for ENDPOINT_HALT and DEVICE_REMOTE_WAKEUP 3253 * Get Bus State is optional sample of D- and D+ at EOF2 3254 */ 3255 3256 switch (req->bRequest) { 3257 /* Write Requests */ 3258 case UR_CLEAR_FEATURE: 3259 if (type == UT_WRITE_CLASS_OTHER) { 3260 if (index == 1 /* Port */) { 3261 mutex_enter(&sc->sc_intr_lock); 3262 error = slhci_clear_feature(sc, value); 3263 mutex_exit(&sc->sc_intr_lock); 3264 } else 3265 DLOG(D_ROOT, "Clear Port Feature " 3266 "index = %#.4x", index, 0,0,0); 3267 } 3268 break; 3269 case UR_SET_FEATURE: 3270 if (type == UT_WRITE_CLASS_OTHER) { 3271 if (index == 1 /* Port */) { 3272 mutex_enter(&sc->sc_intr_lock); 3273 error = slhci_set_feature(sc, value); 3274 mutex_exit(&sc->sc_intr_lock); 3275 } else 3276 DLOG(D_ROOT, "Set Port Feature " 3277 "index = %#.4x", index, 0,0,0); 3278 } else if (type != UT_WRITE_CLASS_DEVICE) 3279 DLOG(D_ROOT, "Set Device Feature " 3280 "ENDPOINT_HALT or DEVICE_REMOTE_WAKEUP " 3281 "not supported", 0,0,0,0); 3282 break; 3283 3284 /* Read Requests */ 3285 case UR_GET_STATUS: 3286 if (type == UT_READ_CLASS_OTHER) { 3287 if (index == 1 /* Port */ && len == /* XXX >=? */ 3288 sizeof(usb_port_status_t)) { 3289 mutex_enter(&sc->sc_intr_lock); 3290 slhci_get_status(sc, (usb_port_status_t *) 3291 buf); 3292 mutex_exit(&sc->sc_intr_lock); 3293 actlen = sizeof(usb_port_status_t); 3294 error = USBD_NORMAL_COMPLETION; 3295 } else 3296 DLOG(D_ROOT, "Get Port Status index = %#.4x " 3297 "len = %#.4x", index, len, 0,0); 3298 } else if (type == UT_READ_CLASS_DEVICE) { /* XXX index? */ 3299 if (len == sizeof(usb_hub_status_t)) { 3300 DLOG(D_ROOT, "Get Hub Status", 3301 0,0,0,0); 3302 actlen = sizeof(usb_hub_status_t); 3303 memset(buf, 0, actlen); 3304 error = USBD_NORMAL_COMPLETION; 3305 } else 3306 DLOG(D_ROOT, "Get Hub Status bad len %#.4x", 3307 len, 0,0,0); 3308 } 3309 break; 3310 case UR_GET_DESCRIPTOR: 3311 if (type == UT_READ_DEVICE) { 3312 /* value is type (&0xff00) and index (0xff) */ 3313 if (value == (UDESC_DEVICE<<8)) { 3314 usb_device_descriptor_t devd; 3315 3316 actlen = min(buflen, sizeof(devd)); 3317 memcpy(&devd, buf, actlen); 3318 USETW(devd.idVendor, USB_VENDOR_SCANLOGIC); 3319 memcpy(buf, &devd, actlen); 3320 error = USBD_NORMAL_COMPLETION; 3321 } else if (value == (UDESC_CONFIG<<8)) { 3322 struct usb_roothub_descriptors confd; 3323 3324 actlen = min(buflen, sizeof(confd)); 3325 memcpy(&confd, buf, actlen); 3326 3327 /* 2 mA units */ 3328 confd.urh_confd.bMaxPower = t->max_current; 3329 memcpy(buf, &confd, actlen); 3330 error = USBD_NORMAL_COMPLETION; 3331 } else if (value == ((UDESC_STRING<<8)|1)) { 3332 /* Vendor */ 3333 actlen = usb_makestrdesc((usb_string_descriptor_t *) 3334 buf, len, "ScanLogic/Cypress"); 3335 error = USBD_NORMAL_COMPLETION; 3336 } else if (value == ((UDESC_STRING<<8)|2)) { 3337 /* Product */ 3338 actlen = usb_makestrdesc((usb_string_descriptor_t *) 3339 buf, len, "SL811HS/T root hub"); 3340 error = USBD_NORMAL_COMPLETION; 3341 } else 3342 DDOLOG("Unknown Get Descriptor %#.4x", 3343 value, 0,0,0); 3344 } else if (type == UT_READ_CLASS_DEVICE) { 3345 /* Descriptor number is 0 */ 3346 if (value == (UDESC_HUB<<8)) { 3347 usb_hub_descriptor_t hubd; 3348 3349 actlen = min(buflen, sizeof(hubd)); 3350 memcpy(&hubd, buf, actlen); 3351 hubd.bHubContrCurrent = 3352 500 - t->max_current; 3353 memcpy(buf, &hubd, actlen); 3354 error = USBD_NORMAL_COMPLETION; 3355 } else 3356 DDOLOG("Unknown Get Hub Descriptor %#.4x", 3357 value, 0,0,0); 3358 } 3359 break; 3360 default: 3361 /* default from usbroothub */ 3362 return buflen; 3363 } 3364 3365 if (error == USBD_NORMAL_COMPLETION) 3366 return actlen; 3367 3368 return -1; 3369 } 3370 3371 /* End in lock functions. Start debug functions. */ 3372 3373 #ifdef SLHCI_DEBUG 3374 void 3375 slhci_log_buffer(struct usbd_xfer *xfer) 3376 { 3377 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3378 u_char *buf; 3379 3380 if(xfer->ux_length > 0 && 3381 UE_GET_DIR(xfer->ux_pipe->up_endpoint->ue_edesc->bEndpointAddress) == 3382 UE_DIR_IN) { 3383 buf = xfer->ux_buf; 3384 DDOLOGBUF(buf, xfer->ux_actlen); 3385 DDOLOG("len %d actlen %d short %d", xfer->ux_length, 3386 xfer->ux_actlen, xfer->ux_length - xfer->ux_actlen, 0); 3387 } 3388 } 3389 3390 void 3391 slhci_log_req(usb_device_request_t *r) 3392 { 3393 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3394 int req, type, value, index, len; 3395 3396 req = r->bRequest; 3397 type = r->bmRequestType; 3398 value = UGETW(r->wValue); 3399 index = UGETW(r->wIndex); 3400 len = UGETW(r->wLength); 3401 3402 DDOLOG("request: type %#x", type, 0, 0, 0); 3403 DDOLOG("request: r=%d,v=%d,i=%d,l=%d ", req, value, index, len); 3404 } 3405 3406 void 3407 slhci_log_dumpreg(void) 3408 { 3409 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3410 uint8_t r; 3411 unsigned int aaddr, alen, baddr, blen; 3412 static u_char buf[240]; 3413 3414 r = slhci_read(ssc, SL11_E0CTRL); 3415 DDOLOG("USB A Host Control = %#.2x", r, 0, 0, 0); 3416 DDOLOGEPCTRL(r); 3417 3418 aaddr = slhci_read(ssc, SL11_E0ADDR); 3419 DDOLOG("USB A Base Address = %u", aaddr, 0,0,0); 3420 alen = slhci_read(ssc, SL11_E0LEN); 3421 DDOLOG("USB A Length = %u", alen, 0,0,0); 3422 r = slhci_read(ssc, SL11_E0STAT); 3423 DDOLOG("USB A Status = %#.2x", r, 0,0,0); 3424 DDOLOGEPSTAT(r); 3425 3426 r = slhci_read(ssc, SL11_E0CONT); 3427 DDOLOG("USB A Remaining or Overflow Length = %u", r, 0,0,0); 3428 r = slhci_read(ssc, SL11_E1CTRL); 3429 DDOLOG("USB B Host Control = %#.2x", r, 0,0,0); 3430 DDOLOGEPCTRL(r); 3431 3432 baddr = slhci_read(ssc, SL11_E1ADDR); 3433 DDOLOG("USB B Base Address = %u", baddr, 0,0,0); 3434 blen = slhci_read(ssc, SL11_E1LEN); 3435 DDOLOG("USB B Length = %u", blen, 0,0,0); 3436 r = slhci_read(ssc, SL11_E1STAT); 3437 DDOLOG("USB B Status = %#.2x", r, 0,0,0); 3438 DDOLOGEPSTAT(r); 3439 3440 r = slhci_read(ssc, SL11_E1CONT); 3441 DDOLOG("USB B Remaining or Overflow Length = %u", r, 0,0,0); 3442 3443 r = slhci_read(ssc, SL11_CTRL); 3444 DDOLOG("Control = %#.2x", r, 0,0,0); 3445 DDOLOGCTRL(r); 3446 3447 r = slhci_read(ssc, SL11_IER); 3448 DDOLOG("Interrupt Enable = %#.2x", r, 0,0,0); 3449 DDOLOGIER(r); 3450 3451 r = slhci_read(ssc, SL11_ISR); 3452 DDOLOG("Interrupt Status = %#.2x", r, 0,0,0); 3453 DDOLOGISR(r); 3454 3455 r = slhci_read(ssc, SL11_REV); 3456 DDOLOG("Revision = %#.2x", r, 0,0,0); 3457 r = slhci_read(ssc, SL811_CSOF); 3458 DDOLOG("SOF Counter = %#.2x", r, 0,0,0); 3459 3460 if (alen && aaddr >= SL11_BUFFER_START && aaddr < SL11_BUFFER_END && 3461 alen <= SL11_MAX_PACKET_SIZE && aaddr + alen <= SL11_BUFFER_END) { 3462 slhci_read_multi(ssc, aaddr, buf, alen); 3463 DDOLOG("USBA Buffer: start %u len %u", aaddr, alen, 0,0); 3464 DDOLOGBUF(buf, alen); 3465 } else if (alen) 3466 DDOLOG("USBA Buffer Invalid", 0,0,0,0); 3467 3468 if (blen && baddr >= SL11_BUFFER_START && baddr < SL11_BUFFER_END && 3469 blen <= SL11_MAX_PACKET_SIZE && baddr + blen <= SL11_BUFFER_END) { 3470 slhci_read_multi(ssc, baddr, buf, blen); 3471 DDOLOG("USBB Buffer: start %u len %u", baddr, blen, 0,0); 3472 DDOLOGBUF(buf, blen); 3473 } else if (blen) 3474 DDOLOG("USBB Buffer Invalid", 0,0,0,0); 3475 } 3476 3477 void 3478 slhci_log_xfer(struct usbd_xfer *xfer) 3479 { 3480 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3481 DDOLOG("xfer: length=%u, actlen=%u, flags=%#x, timeout=%u,", 3482 xfer->ux_length, xfer->ux_actlen, xfer->ux_flags, xfer->ux_timeout); 3483 DDOLOG("buffer=%p", xfer->ux_buf, 0,0,0); 3484 slhci_log_req(&xfer->ux_request); 3485 } 3486 3487 void 3488 slhci_log_spipe(struct slhci_pipe *spipe) 3489 { 3490 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3491 DDOLOG("spipe %p onlists: AP=%d TO=%d XQ=%d", spipe, 3492 gcq_onlist(&spipe->ap) ? 1 : 0, 3493 gcq_onlist(&spipe->to) ? 1 : 0, 3494 gcq_onlist(&spipe->xq) ? 1 : 0); 3495 DDOLOG("spipe: xfer %p buffer %p pflags %#x ptype %d", 3496 spipe->xfer, spipe->buffer, spipe->pflags, spipe->ptype); 3497 } 3498 3499 void 3500 slhci_print_intr(void) 3501 { 3502 unsigned int ier, isr; 3503 ier = slhci_read(ssc, SL11_IER); 3504 isr = slhci_read(ssc, SL11_ISR); 3505 printf("IER: %#x ISR: %#x \n", ier, isr); 3506 } 3507 3508 #if 0 3509 void 3510 slhci_log_sc(void) 3511 { 3512 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3513 3514 struct slhci_transfers *t; 3515 int i; 3516 3517 t = &ssc->sc_transfers; 3518 3519 DDOLOG("Flags=%#x", t->flags, 0,0,0); 3520 DDOLOG("a = %p Alen=%d b = %p Blen=%d", t->spipe[0], t->len[0], 3521 t->spipe[1], t->len[1]); 3522 3523 for (i=0; i<=Q_MAX; i++) 3524 DDOLOG("Q %d: %p", i, gcq_hq(&t->q[i]), 0,0); 3525 3526 DDOLOG("TIMED: %p", GCQ_ITEM(gcq_hq(&t->to), 3527 struct slhci_pipe, to), 0,0,0); 3528 3529 DDOLOG("frame=%d rootintr=%p", t->frame, t->rootintr, 0,0); 3530 3531 DDOLOG("ub_usepolling=%d", ssc->sc_bus.ub_usepolling, 0, 0, 0); 3532 } 3533 3534 void 3535 slhci_log_slreq(struct slhci_pipe *r) 3536 { 3537 SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); 3538 DDOLOG("xfer: %p", r->xfer, 0,0,0); 3539 DDOLOG("buffer: %p", r->buffer, 0,0,0); 3540 DDOLOG("bustime: %u", r->bustime, 0,0,0); 3541 DDOLOG("control: %#x", r->control, 0,0,0); 3542 DDOLOGEPCTRL(r->control); 3543 3544 DDOLOG("pid: %#x", r->tregs[PID], 0,0,0); 3545 DDOLOG("dev: %u", r->tregs[DEV], 0,0,0); 3546 DDOLOG("len: %u", r->tregs[LEN], 0,0,0); 3547 3548 if (r->xfer) 3549 slhci_log_xfer(r->xfer); 3550 } 3551 #endif 3552 #endif /* SLHCI_DEBUG */ 3553 /* End debug functions. */ 3554
Indexes created Tue Sep 30 07:10:03 GMT 2025