sl811hs.c revision 1.47
1 /* $NetBSD: sl811hs.c,v 1.47 2013/10/17 21:24:24 christos 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 * use_polling support is untested and may not work 68 */ 69 70 #include <sys/cdefs.h> 71 __KERNEL_RCSID(0, "$NetBSD: sl811hs.c,v 1.47 2013/10/17 21:24:24 christos Exp $"); 72 73 #include "opt_slhci.h" 74 75 #include <sys/cdefs.h> 76 #include <sys/param.h> 77 #include <sys/systm.h> 78 #include <sys/kernel.h> 79 #include <sys/proc.h> 80 #include <sys/device.h> 81 #include <sys/malloc.h> 82 #include <sys/queue.h> 83 #include <sys/gcq.h> 84 #include <sys/intr.h> 85 #include <sys/cpu.h> 86 #include <sys/bus.h> 87 88 #include <dev/usb/usb.h> 89 #include <dev/usb/usbdi.h> 90 #include <dev/usb/usbdivar.h> 91 #include <dev/usb/usb_mem.h> 92 #include <dev/usb/usbdevs.h> 93 #include <dev/usb/usbroothub_subr.h> 94 95 #include <dev/ic/sl811hsreg.h> 96 #include <dev/ic/sl811hsvar.h> 97 98 #define Q_CB 0 /* Control/Bulk */ 99 #define Q_NEXT_CB 1 100 #define Q_MAX_XFER Q_CB 101 #define Q_CALLBACKS 2 102 #define Q_MAX Q_CALLBACKS 103 104 #define F_AREADY (0x00000001) 105 #define F_BREADY (0x00000002) 106 #define F_AINPROG (0x00000004) 107 #define F_BINPROG (0x00000008) 108 #define F_LOWSPEED (0x00000010) 109 #define F_UDISABLED (0x00000020) /* Consider disabled for USB */ 110 #define F_NODEV (0x00000040) 111 #define F_ROOTINTR (0x00000080) 112 #define F_REALPOWER (0x00000100) /* Actual power state */ 113 #define F_POWER (0x00000200) /* USB reported power state */ 114 #define F_ACTIVE (0x00000400) 115 #define F_CALLBACK (0x00000800) /* Callback scheduled */ 116 #define F_SOFCHECK1 (0x00001000) 117 #define F_SOFCHECK2 (0x00002000) 118 #define F_CRESET (0x00004000) /* Reset done not reported */ 119 #define F_CCONNECT (0x00008000) /* Connect change not reported */ 120 #define F_RESET (0x00010000) 121 #define F_ISOC_WARNED (0x00020000) 122 #define F_LSVH_WARNED (0x00040000) 123 124 #define F_DISABLED (F_NODEV|F_UDISABLED) 125 #define F_CHANGE (F_CRESET|F_CCONNECT) 126 127 #ifdef SLHCI_TRY_LSVH 128 unsigned int slhci_try_lsvh = 1; 129 #else 130 unsigned int slhci_try_lsvh = 0; 131 #endif 132 133 #define ADR 0 134 #define LEN 1 135 #define PID 2 136 #define DEV 3 137 #define STAT 2 138 #define CONT 3 139 140 #define A 0 141 #define B 1 142 143 static const uint8_t slhci_tregs[2][4] = 144 {{SL11_E0ADDR, SL11_E0LEN, SL11_E0PID, SL11_E0DEV }, 145 {SL11_E1ADDR, SL11_E1LEN, SL11_E1PID, SL11_E1DEV }}; 146 147 #define PT_ROOT_CTRL 0 148 #define PT_ROOT_INTR 1 149 #define PT_CTRL_SETUP 2 150 #define PT_CTRL_DATA 3 151 #define PT_CTRL_STATUS 4 152 #define PT_INTR 5 153 #define PT_BULK 6 154 #define PT_MAX 6 155 156 #ifdef SLHCI_DEBUG 157 #define SLHCI_MEM_ACCOUNTING 158 static const char * 159 pnames(int ptype) 160 { 161 static const char * const names[] = { "ROOT Ctrl", "ROOT Intr", 162 "Control (setup)", "Control (data)", "Control (status)", 163 "Interrupt", "Bulk", "BAD PTYPE" }; 164 165 KASSERT(sizeof(names) / sizeof(names[0]) == PT_MAX + 2); 166 if (ptype > PT_MAX) 167 ptype = PT_MAX + 1; 168 return names[ptype]; 169 } 170 #endif 171 172 #define SLHCI_XFER_TYPE(x) (((struct slhci_pipe *)((x)->pipe))->ptype) 173 174 /* 175 * Maximum allowable reserved bus time. Since intr/isoc transfers have 176 * unconditional priority, this is all that ensures control and bulk transfers 177 * get a chance. It is a single value for all frames since all transfers can 178 * use multiple consecutive frames if an error is encountered. Note that it 179 * is not really possible to fill the bus with transfers, so this value should 180 * be on the low side. Defaults to giving a warning unless SLHCI_NO_OVERTIME 181 * is defined. Full time is 12000 - END_BUSTIME. 182 */ 183 #ifndef SLHCI_RESERVED_BUSTIME 184 #define SLHCI_RESERVED_BUSTIME 5000 185 #endif 186 187 /* 188 * Rate for "exceeds reserved bus time" warnings (default) or errors. 189 * Warnings only happen when an endpoint open causes the time to go above 190 * SLHCI_RESERVED_BUSTIME, not if it is already above. 191 */ 192 #ifndef SLHCI_OVERTIME_WARNING_RATE 193 #define SLHCI_OVERTIME_WARNING_RATE { 60, 0 } /* 60 seconds */ 194 #endif 195 static const struct timeval reserved_warn_rate = SLHCI_OVERTIME_WARNING_RATE; 196 197 /* Rate for overflow warnings */ 198 #ifndef SLHCI_OVERFLOW_WARNING_RATE 199 #define SLHCI_OVERFLOW_WARNING_RATE { 60, 0 } /* 60 seconds */ 200 #endif 201 static const struct timeval overflow_warn_rate = SLHCI_OVERFLOW_WARNING_RATE; 202 203 /* 204 * For EOF, the spec says 42 bit times, plus (I think) a possible hub skew of 205 * 20 bit times. By default leave 66 bit times to start the transfer beyond 206 * the required time. Units are full-speed bit times (a bit over 5us per 64). 207 * Only multiples of 64 are significant. 208 */ 209 #define SLHCI_STANDARD_END_BUSTIME 128 210 #ifndef SLHCI_EXTRA_END_BUSTIME 211 #define SLHCI_EXTRA_END_BUSTIME 0 212 #endif 213 214 #define SLHCI_END_BUSTIME (SLHCI_STANDARD_END_BUSTIME+SLHCI_EXTRA_END_BUSTIME) 215 216 /* 217 * This is an approximation of the USB worst-case timings presented on p. 54 of 218 * the USB 1.1 spec translated to full speed bit times. 219 * FS = full speed with handshake, FSII = isoc in, FSIO = isoc out, 220 * FSI = isoc (worst case), LS = low speed 221 */ 222 #define SLHCI_FS_CONST 114 223 #define SLHCI_FSII_CONST 92 224 #define SLHCI_FSIO_CONST 80 225 #define SLHCI_FSI_CONST 92 226 #define SLHCI_LS_CONST 804 227 #ifndef SLHCI_PRECICE_BUSTIME 228 /* 229 * These values are < 3% too high (compared to the multiply and divide) for 230 * max sized packets. 231 */ 232 #define SLHCI_FS_DATA_TIME(len) (((u_int)(len)<<3)+(len)+((len)>>1)) 233 #define SLHCI_LS_DATA_TIME(len) (((u_int)(len)<<6)+((u_int)(len)<<4)) 234 #else 235 #define SLHCI_FS_DATA_TIME(len) (56*(len)/6) 236 #define SLHCI_LS_DATA_TIME(len) (449*(len)/6) 237 #endif 238 239 /* 240 * Set SLHCI_WAIT_SIZE to the desired maximum size of single FS transfer 241 * to poll for after starting a transfer. 64 gets all full speed transfers. 242 * Note that even if 0 polling will occur if data equal or greater than the 243 * transfer size is copied to the chip while the transfer is in progress. 244 * Setting SLHCI_WAIT_TIME to -12000 will disable polling. 245 */ 246 #ifndef SLHCI_WAIT_SIZE 247 #define SLHCI_WAIT_SIZE 8 248 #endif 249 #ifndef SLHCI_WAIT_TIME 250 #define SLHCI_WAIT_TIME (SLHCI_FS_CONST + \ 251 SLHCI_FS_DATA_TIME(SLHCI_WAIT_SIZE)) 252 #endif 253 const int slhci_wait_time = SLHCI_WAIT_TIME; 254 255 /* Root hub intr endpoint */ 256 #define ROOT_INTR_ENDPT 1 257 258 #ifndef SLHCI_MAX_RETRIES 259 #define SLHCI_MAX_RETRIES 3 260 #endif 261 262 /* Check IER values for corruption after this many unrecognized interrupts. */ 263 #ifndef SLHCI_IER_CHECK_FREQUENCY 264 #ifdef SLHCI_DEBUG 265 #define SLHCI_IER_CHECK_FREQUENCY 1 266 #else 267 #define SLHCI_IER_CHECK_FREQUENCY 100 268 #endif 269 #endif 270 271 /* Note that buffer points to the start of the buffer for this transfer. */ 272 struct slhci_pipe { 273 struct usbd_pipe pipe; 274 struct usbd_xfer *xfer; /* xfer in progress */ 275 uint8_t *buffer; /* I/O buffer (if needed) */ 276 struct gcq ap; /* All pipes */ 277 struct gcq to; /* Timeout list */ 278 struct gcq xq; /* Xfer queues */ 279 unsigned int pflags; /* Pipe flags */ 280 #define PF_GONE (0x01) /* Pipe is on disabled device */ 281 #define PF_TOGGLE (0x02) /* Data toggle status */ 282 #define PF_LS (0x04) /* Pipe is low speed */ 283 #define PF_PREAMBLE (0x08) /* Needs preamble */ 284 Frame to_frame; /* Frame number for timeout */ 285 Frame frame; /* Frame number for intr xfer */ 286 Frame lastframe; /* Previous frame number for intr */ 287 uint16_t bustime; /* Worst case bus time usage */ 288 uint16_t newbustime[2]; /* new bustimes (see index below) */ 289 uint8_t tregs[4]; /* ADR, LEN, PID, DEV */ 290 uint8_t newlen[2]; /* 0 = short data, 1 = ctrl data */ 291 uint8_t newpid; /* for ctrl */ 292 uint8_t wantshort; /* last xfer must be short */ 293 uint8_t control; /* Host control register settings */ 294 uint8_t nerrs; /* Current number of errors */ 295 uint8_t ptype; /* Pipe type */ 296 }; 297 298 #ifdef SLHCI_PROFILE_TRANSFER 299 #if defined(__mips__) 300 /* 301 * MIPS cycle counter does not directly count cpu cycles but is a different 302 * fraction of cpu cycles depending on the cpu. 303 */ 304 typedef u_int32_t cc_type; 305 #define CC_TYPE_FMT "%u" 306 #define slhci_cc_set(x) __asm volatile ("mfc0 %[cc], $9\n\tnop\n\tnop\n\tnop" \ 307 : [cc] "=r"(x)) 308 #elif defined(__i386__) 309 typedef u_int64_t cc_type; 310 #define CC_TYPE_FMT "%llu" 311 #define slhci_cc_set(x) __asm volatile ("rdtsc" : "=A"(x)) 312 #else 313 #error "SLHCI_PROFILE_TRANSFER not implemented on this MACHINE_ARCH (see sys/dev/ic/sl811hs.c)" 314 #endif 315 struct slhci_cc_time { 316 cc_type start; 317 cc_type stop; 318 unsigned int miscdata; 319 }; 320 #ifndef SLHCI_N_TIMES 321 #define SLHCI_N_TIMES 200 322 #endif 323 struct slhci_cc_times { 324 struct slhci_cc_time times[SLHCI_N_TIMES]; 325 int current; 326 int wraparound; 327 }; 328 329 static struct slhci_cc_times t_ab[2]; 330 static struct slhci_cc_times t_abdone; 331 static struct slhci_cc_times t_copy_to_dev; 332 static struct slhci_cc_times t_copy_from_dev; 333 static struct slhci_cc_times t_intr; 334 static struct slhci_cc_times t_lock; 335 static struct slhci_cc_times t_delay; 336 static struct slhci_cc_times t_hard_int; 337 static struct slhci_cc_times t_callback; 338 339 static inline void 340 start_cc_time(struct slhci_cc_times *times, unsigned int misc) { 341 times->times[times->current].miscdata = misc; 342 slhci_cc_set(times->times[times->current].start); 343 } 344 static inline void 345 stop_cc_time(struct slhci_cc_times *times) { 346 slhci_cc_set(times->times[times->current].stop); 347 if (++times->current >= SLHCI_N_TIMES) { 348 times->current = 0; 349 times->wraparound = 1; 350 } 351 } 352 353 void slhci_dump_cc_times(int); 354 355 void 356 slhci_dump_cc_times(int n) { 357 struct slhci_cc_times *times; 358 int i; 359 360 switch (n) { 361 default: 362 case 0: 363 printf("USBA start transfer to intr:\n"); 364 times = &t_ab[A]; 365 break; 366 case 1: 367 printf("USBB start transfer to intr:\n"); 368 times = &t_ab[B]; 369 break; 370 case 2: 371 printf("abdone:\n"); 372 times = &t_abdone; 373 break; 374 case 3: 375 printf("copy to device:\n"); 376 times = &t_copy_to_dev; 377 break; 378 case 4: 379 printf("copy from device:\n"); 380 times = &t_copy_from_dev; 381 break; 382 case 5: 383 printf("intr to intr:\n"); 384 times = &t_intr; 385 break; 386 case 6: 387 printf("lock to release:\n"); 388 times = &t_lock; 389 break; 390 case 7: 391 printf("delay time:\n"); 392 times = &t_delay; 393 break; 394 case 8: 395 printf("hard interrupt enter to exit:\n"); 396 times = &t_hard_int; 397 break; 398 case 9: 399 printf("callback:\n"); 400 times = &t_callback; 401 break; 402 } 403 404 if (times->wraparound) 405 for (i = times->current + 1; i < SLHCI_N_TIMES; i++) 406 printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT 407 " difference %8i miscdata %#x\n", 408 times->times[i].start, times->times[i].stop, 409 (int)(times->times[i].stop - 410 times->times[i].start), times->times[i].miscdata); 411 412 for (i = 0; i < times->current; i++) 413 printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT 414 " difference %8i miscdata %#x\n", times->times[i].start, 415 times->times[i].stop, (int)(times->times[i].stop - 416 times->times[i].start), times->times[i].miscdata); 417 } 418 #else 419 #define start_cc_time(x, y) 420 #define stop_cc_time(x) 421 #endif /* SLHCI_PROFILE_TRANSFER */ 422 423 typedef usbd_status (*LockCallFunc)(struct slhci_softc *, struct slhci_pipe 424 *, struct usbd_xfer *); 425 426 usbd_status slhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 427 void slhci_freem(struct usbd_bus *, usb_dma_t *); 428 struct usbd_xfer * slhci_allocx(struct usbd_bus *); 429 void slhci_freex(struct usbd_bus *, struct usbd_xfer *); 430 static void slhci_get_lock(struct usbd_bus *, kmutex_t **); 431 432 usbd_status slhci_transfer(struct usbd_xfer *); 433 usbd_status slhci_start(struct usbd_xfer *); 434 usbd_status slhci_root_start(struct usbd_xfer *); 435 usbd_status slhci_open(struct usbd_pipe *); 436 437 /* 438 * slhci_supported_rev, slhci_preinit, slhci_attach, slhci_detach, 439 * slhci_activate 440 */ 441 442 void slhci_abort(struct usbd_xfer *); 443 void slhci_close(struct usbd_pipe *); 444 void slhci_clear_toggle(struct usbd_pipe *); 445 void slhci_poll(struct usbd_bus *); 446 void slhci_done(struct usbd_xfer *); 447 void slhci_void(void *); 448 449 /* lock entry functions */ 450 451 #ifdef SLHCI_MEM_ACCOUNTING 452 void slhci_mem_use(struct usbd_bus *, int); 453 #endif 454 455 void slhci_reset_entry(void *); 456 usbd_status slhci_lock_call(struct slhci_softc *, LockCallFunc, 457 struct slhci_pipe *, struct usbd_xfer *); 458 void slhci_start_entry(struct slhci_softc *, struct slhci_pipe *); 459 void slhci_callback_entry(void *arg); 460 void slhci_do_callback(struct slhci_softc *, struct usbd_xfer *); 461 462 /* slhci_intr */ 463 464 void slhci_main(struct slhci_softc *); 465 466 /* in lock functions */ 467 468 static void slhci_write(struct slhci_softc *, uint8_t, uint8_t); 469 static uint8_t slhci_read(struct slhci_softc *, uint8_t); 470 static void slhci_write_multi(struct slhci_softc *, uint8_t, uint8_t *, int); 471 static void slhci_read_multi(struct slhci_softc *, uint8_t, uint8_t *, int); 472 473 static void slhci_waitintr(struct slhci_softc *, int); 474 static int slhci_dointr(struct slhci_softc *); 475 static void slhci_abdone(struct slhci_softc *, int); 476 static void slhci_tstart(struct slhci_softc *); 477 static void slhci_dotransfer(struct slhci_softc *); 478 479 static void slhci_callback(struct slhci_softc *); 480 static void slhci_enter_xfer(struct slhci_softc *, struct slhci_pipe *); 481 static void slhci_enter_xfers(struct slhci_softc *); 482 static void slhci_queue_timed(struct slhci_softc *, struct slhci_pipe *); 483 static void slhci_xfer_timer(struct slhci_softc *, struct slhci_pipe *); 484 485 static void slhci_do_repeat(struct slhci_softc *, struct usbd_xfer *); 486 static void slhci_callback_schedule(struct slhci_softc *); 487 static void slhci_do_callback_schedule(struct slhci_softc *); 488 #if 0 489 void slhci_pollxfer(struct slhci_softc *, struct usbd_xfer *); /* XXX */ 490 #endif 491 492 static usbd_status slhci_do_poll(struct slhci_softc *, struct slhci_pipe *, 493 struct usbd_xfer *); 494 static usbd_status slhci_lsvh_warn(struct slhci_softc *, struct slhci_pipe *, 495 struct usbd_xfer *); 496 static usbd_status slhci_isoc_warn(struct slhci_softc *, struct slhci_pipe *, 497 struct usbd_xfer *); 498 static usbd_status slhci_open_pipe(struct slhci_softc *, struct slhci_pipe *, 499 struct usbd_xfer *); 500 static usbd_status slhci_close_pipe(struct slhci_softc *, struct slhci_pipe *, 501 struct usbd_xfer *); 502 static usbd_status slhci_do_abort(struct slhci_softc *, struct slhci_pipe *, 503 struct usbd_xfer *); 504 static usbd_status slhci_halt(struct slhci_softc *, struct slhci_pipe *, 505 struct usbd_xfer *); 506 507 static void slhci_intrchange(struct slhci_softc *, uint8_t); 508 static void slhci_drain(struct slhci_softc *); 509 static void slhci_reset(struct slhci_softc *); 510 static int slhci_reserve_bustime(struct slhci_softc *, struct slhci_pipe *, 511 int); 512 static void slhci_insert(struct slhci_softc *); 513 514 static usbd_status slhci_clear_feature(struct slhci_softc *, unsigned int); 515 static usbd_status slhci_set_feature(struct slhci_softc *, unsigned int); 516 static void slhci_get_status(struct slhci_softc *, usb_port_status_t *); 517 static usbd_status slhci_root(struct slhci_softc *, struct slhci_pipe *, 518 struct usbd_xfer *); 519 520 #ifdef SLHCI_DEBUG 521 void slhci_log_buffer(struct usbd_xfer *); 522 void slhci_log_req(usb_device_request_t *); 523 void slhci_log_req_hub(usb_device_request_t *); 524 void slhci_log_dumpreg(void); 525 void slhci_log_xfer(struct usbd_xfer *); 526 void slhci_log_spipe(struct slhci_pipe *); 527 void slhci_print_intr(void); 528 void slhci_log_sc(void); 529 void slhci_log_slreq(struct slhci_pipe *); 530 531 extern int usbdebug; 532 533 /* Constified so you can read the values from ddb */ 534 const int SLHCI_D_TRACE = 0x0001; 535 const int SLHCI_D_MSG = 0x0002; 536 const int SLHCI_D_XFER = 0x0004; 537 const int SLHCI_D_MEM = 0x0008; 538 const int SLHCI_D_INTR = 0x0010; 539 const int SLHCI_D_SXFER = 0x0020; 540 const int SLHCI_D_ERR = 0x0080; 541 const int SLHCI_D_BUF = 0x0100; 542 const int SLHCI_D_SOFT = 0x0200; 543 const int SLHCI_D_WAIT = 0x0400; 544 const int SLHCI_D_ROOT = 0x0800; 545 /* SOF/NAK alone normally ignored, SOF also needs D_INTR */ 546 const int SLHCI_D_SOF = 0x1000; 547 const int SLHCI_D_NAK = 0x2000; 548 549 int slhci_debug = 0x1cbc; /* 0xc8c; */ /* 0xffff; */ /* 0xd8c; */ 550 struct slhci_softc *ssc; 551 #ifdef USB_DEBUG 552 int slhci_usbdebug = -1; /* value to set usbdebug on attach, -1 = leave alone */ 553 #endif 554 555 /* 556 * XXXMRG the SLHCI UVMHIST code has been converted to KERNHIST, but it has 557 * not been tested. the extra instructions to enable it can probably be 558 * commited to the kernhist code, and these instructions reduced to simply 559 * enabling SLHCI_DEBUG. 560 */ 561 562 /* 563 * Add KERNHIST history for debugging: 564 * 565 * Before kern_hist in sys/kern/subr_kernhist.c add: 566 * KERNHIST_DECL(slhcihist); 567 * 568 * In kern_hist add: 569 * if ((bitmask & KERNHIST_SLHCI)) 570 * hists[i++] = &slhcihist; 571 * 572 * In sys/sys/kernhist.h add KERNHIST_SLHCI define. 573 */ 574 575 #include <sys/kernhist.h> 576 KERNHIST_DECL(slhcihist); 577 578 #if !defined(KERNHIST) || !defined(KERNHIST_SLHCI) 579 #error "SLHCI_DEBUG requires KERNHIST (with modifications, see sys/dev/ic/sl81hs.c)" 580 #endif 581 582 #ifndef SLHCI_NHIST 583 #define SLHCI_NHIST 409600 584 #endif 585 const unsigned int SLHCI_HISTMASK = KERNHIST_SLHCI; 586 struct kern_history_ent slhci_he[SLHCI_NHIST]; 587 588 #define SLHCI_DEXEC(x, y) do { if ((slhci_debug & SLHCI_ ## x)) { y; } \ 589 } while (/*CONSTCOND*/ 0) 590 #define DDOLOG(f, a, b, c, d) do { const char *_kernhist_name = __func__; \ 591 u_long _kernhist_call = 0; KERNHIST_LOG(slhcihist, f, a, b, c, d); \ 592 } while (/*CONSTCOND*/0) 593 #define DLOG(x, f, a, b, c, d) SLHCI_DEXEC(x, DDOLOG(f, a, b, c, d)) 594 /* 595 * DLOGFLAG8 is a macro not a function so that flag name expressions are not 596 * evaluated unless the flag bit is set (which could save a register read). 597 * x is debug mask, y is flag identifier, z is flag variable, 598 * a-h are flag names (must evaluate to string constants, msb first). 599 */ 600 #define DDOLOGFLAG8(y, z, a, b, c, d, e, f, g, h) do { uint8_t _DLF8 = (z); \ 601 const char *_kernhist_name = __func__; u_long _kernhist_call = 0; \ 602 if (_DLF8 & 0xf0) KERNHIST_LOG(slhcihist, y " %s %s %s %s", _DLF8 & 0x80 ? \ 603 (a) : "", _DLF8 & 0x40 ? (b) : "", _DLF8 & 0x20 ? (c) : "", _DLF8 & 0x10 ? \ 604 (d) : ""); if (_DLF8 & 0x0f) KERNHIST_LOG(slhcihist, y " %s %s %s %s", \ 605 _DLF8 & 0x08 ? (e) : "", _DLF8 & 0x04 ? (f) : "", _DLF8 & 0x02 ? (g) : "", \ 606 _DLF8 & 0x01 ? (h) : ""); \ 607 } while (/*CONSTCOND*/ 0) 608 #define DLOGFLAG8(x, y, z, a, b, c, d, e, f, g, h) \ 609 SLHCI_DEXEC(x, DDOLOGFLAG8(y, z, a, b, c, d, e, f, g, h)) 610 /* 611 * DDOLOGBUF logs a buffer up to 8 bytes at a time. No identifier so that we 612 * can make it a real function. 613 */ 614 static void 615 DDOLOGBUF(uint8_t *buf, unsigned int length) 616 { 617 int i; 618 619 for(i=0; i+8 <= length; i+=8) 620 DDOLOG("%.4x %.4x %.4x %.4x", (buf[i] << 8) | buf[i+1], 621 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 622 (buf[i+6] << 8) | buf[i+7]); 623 if (length == i+7) 624 DDOLOG("%.4x %.4x %.4x %.2x", (buf[i] << 8) | buf[i+1], 625 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 626 buf[i+6]); 627 else if (length == i+6) 628 DDOLOG("%.4x %.4x %.4x", (buf[i] << 8) | buf[i+1], 629 (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 0); 630 else if (length == i+5) 631 DDOLOG("%.4x %.4x %.2x", (buf[i] << 8) | buf[i+1], 632 (buf[i+2] << 8) | buf[i+3], buf[i+4], 0); 633 else if (length == i+4) 634 DDOLOG("%.4x %.4x", (buf[i] << 8) | buf[i+1], 635 (buf[i+2] << 8) | buf[i+3], 0,0); 636 else if (length == i+3) 637 DDOLOG("%.4x %.2x", (buf[i] << 8) | buf[i+1], buf[i+2], 0,0); 638 else if (length == i+2) 639 DDOLOG("%.4x", (buf[i] << 8) | buf[i+1], 0,0,0); 640 else if (length == i+1) 641 DDOLOG("%.2x", buf[i], 0,0,0); 642 } 643 #define DLOGBUF(x, b, l) SLHCI_DEXEC(x, DDOLOGBUF(b, l)) 644 #else /* now !SLHCI_DEBUG */ 645 #define slhci_log_spipe(spipe) ((void)0) 646 #define slhci_log_xfer(xfer) ((void)0) 647 #define SLHCI_DEXEC(x, y) ((void)0) 648 #define DDOLOG(f, a, b, c, d) ((void)0) 649 #define DLOG(x, f, a, b, c, d) ((void)0) 650 #define DDOLOGFLAG8(y, z, a, b, c, d, e, f, g, h) ((void)0) 651 #define DLOGFLAG8(x, y, z, a, b, c, d, e, f, g, h) ((void)0) 652 #define DDOLOGBUF(b, l) ((void)0) 653 #define DLOGBUF(x, b, l) ((void)0) 654 #endif /* SLHCI_DEBUG */ 655 656 #ifdef DIAGNOSTIC 657 #define LK_SLASSERT(exp, sc, spipe, xfer, ext) do { \ 658 if (!(exp)) { \ 659 printf("%s: assertion %s failed line %u function %s!" \ 660 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__);\ 661 DDOLOG("%s: assertion %s failed line %u function %s!" \ 662 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__);\ 663 slhci_halt(sc, spipe, xfer); \ 664 ext; \ 665 } \ 666 } while (/*CONSTCOND*/0) 667 #define UL_SLASSERT(exp, sc, spipe, xfer, ext) do { \ 668 if (!(exp)) { \ 669 printf("%s: assertion %s failed line %u function %s!" \ 670 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__); \ 671 DDOLOG("%s: assertion %s failed line %u function %s!" \ 672 " halted\n", SC_NAME(sc), #exp, __LINE__, __func__); \ 673 slhci_lock_call(sc, &slhci_halt, spipe, xfer); \ 674 ext; \ 675 } \ 676 } while (/*CONSTCOND*/0) 677 #else 678 #define LK_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) 679 #define UL_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) 680 #endif 681 682 const struct usbd_bus_methods slhci_bus_methods = { 683 .open_pipe = slhci_open, 684 .soft_intr = slhci_void, 685 .do_poll = slhci_poll, 686 .allocm = slhci_allocm, 687 .freem = slhci_freem, 688 .allocx = slhci_allocx, 689 .freex = slhci_freex, 690 .get_lock = slhci_get_lock, 691 NULL, /* new_device */ 692 }; 693 694 const struct usbd_pipe_methods slhci_pipe_methods = { 695 .transfer = slhci_transfer, 696 .start = slhci_start, 697 .abort = slhci_abort, 698 .close = slhci_close, 699 .cleartoggle = slhci_clear_toggle, 700 .done = slhci_done, 701 }; 702 703 const struct usbd_pipe_methods slhci_root_methods = { 704 .transfer = slhci_transfer, 705 .start = slhci_root_start, 706 .abort = slhci_abort, 707 .close = (void (*)(struct usbd_pipe *))slhci_void, /* XXX safe? */ 708 .cleartoggle = slhci_clear_toggle, 709 .done = slhci_done, 710 }; 711 712 /* Queue inlines */ 713 714 #define GOT_FIRST_TO(tvar, t) \ 715 GCQ_GOT_FIRST_TYPED(tvar, &(t)->to, struct slhci_pipe, to) 716 717 #define FIND_TO(var, t, tvar, cond) \ 718 GCQ_FIND_TYPED(var, &(t)->to, tvar, struct slhci_pipe, to, cond) 719 720 #define FOREACH_AP(var, t, tvar) \ 721 GCQ_FOREACH_TYPED(var, &(t)->ap, tvar, struct slhci_pipe, ap) 722 723 #define GOT_FIRST_TIMED_COND(tvar, t, cond) \ 724 GCQ_GOT_FIRST_COND_TYPED(tvar, &(t)->timed, struct slhci_pipe, xq, cond) 725 726 #define GOT_FIRST_CB(tvar, t) \ 727 GCQ_GOT_FIRST_TYPED(tvar, &(t)->q[Q_CB], struct slhci_pipe, xq) 728 729 #define DEQUEUED_CALLBACK(tvar, t) \ 730 GCQ_DEQUEUED_FIRST_TYPED(tvar, &(t)->q[Q_CALLBACKS], struct slhci_pipe, xq) 731 732 #define FIND_TIMED(var, t, tvar, cond) \ 733 GCQ_FIND_TYPED(var, &(t)->timed, tvar, struct slhci_pipe, xq, cond) 734 735 #define DEQUEUED_WAITQ(tvar, sc) \ 736 GCQ_DEQUEUED_FIRST_TYPED(tvar, &(sc)->sc_waitq, struct slhci_pipe, xq) 737 738 static inline void 739 enter_waitq(struct slhci_softc *sc, struct slhci_pipe *spipe) 740 { 741 gcq_insert_tail(&sc->sc_waitq, &spipe->xq); 742 } 743 744 static inline void 745 enter_q(struct slhci_transfers *t, struct slhci_pipe *spipe, int i) 746 { 747 gcq_insert_tail(&t->q[i], &spipe->xq); 748 } 749 750 static inline void 751 enter_callback(struct slhci_transfers *t, struct slhci_pipe *spipe) 752 { 753 gcq_insert_tail(&t->q[Q_CALLBACKS], &spipe->xq); 754 } 755 756 static inline void 757 enter_all_pipes(struct slhci_transfers *t, struct slhci_pipe *spipe) 758 { 759 gcq_insert_tail(&t->ap, &spipe->ap); 760 } 761 762 /* Start out of lock functions. */ 763 764 struct slhci_mem { 765 usb_dma_block_t block; 766 uint8_t data[]; 767 }; 768 769 /* 770 * The SL811HS does not do DMA as a host controller, but NetBSD's USB interface 771 * assumes DMA is used. So we fake the DMA block. 772 */ 773 usbd_status 774 slhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 775 { 776 struct slhci_mem *mem; 777 778 mem = malloc(sizeof(struct slhci_mem) + size, M_USB, M_NOWAIT|M_ZERO); 779 780 DLOG(D_MEM, "allocm %p", mem, 0,0,0); 781 782 if (mem == NULL) 783 return USBD_NOMEM; 784 785 dma->block = &mem->block; 786 dma->block->kaddr = mem->data; 787 788 /* dma->offs = 0; */ 789 dma->block->nsegs = 1; 790 dma->block->size = size; 791 dma->block->align = size; 792 dma->block->flags |= USB_DMA_FULLBLOCK; 793 794 #ifdef SLHCI_MEM_ACCOUNTING 795 slhci_mem_use(bus, 1); 796 #endif 797 798 return USBD_NORMAL_COMPLETION; 799 } 800 801 void 802 slhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 803 { 804 DLOG(D_MEM, "freem %p", dma->block, 0,0,0); 805 806 #ifdef SLHCI_MEM_ACCOUNTING 807 slhci_mem_use(bus, -1); 808 #endif 809 810 free(dma->block, M_USB); 811 } 812 813 struct usbd_xfer * 814 slhci_allocx(struct usbd_bus *bus) 815 { 816 struct usbd_xfer *xfer; 817 818 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT|M_ZERO); 819 820 DLOG(D_MEM, "allocx %p", xfer, 0,0,0); 821 822 #ifdef SLHCI_MEM_ACCOUNTING 823 slhci_mem_use(bus, 1); 824 #endif 825 #ifdef DIAGNOSTIC 826 if (xfer != NULL) 827 xfer->busy_free = XFER_BUSY; 828 #endif 829 return xfer; 830 } 831 832 void 833 slhci_freex(struct usbd_bus *bus, struct usbd_xfer *xfer) 834 { 835 DLOG(D_MEM, "freex xfer %p spipe %p", xfer, xfer->pipe,0,0); 836 837 #ifdef SLHCI_MEM_ACCOUNTING 838 slhci_mem_use(bus, -1); 839 #endif 840 #ifdef DIAGNOSTIC 841 if (xfer->busy_free != XFER_BUSY) { 842 struct slhci_softc *sc = bus->hci_private; 843 printf("%s: slhci_freex: xfer=%p not busy, %#08x halted\n", 844 SC_NAME(sc), xfer, xfer->busy_free); 845 DDOLOG("%s: slhci_freex: xfer=%p not busy, %#08x halted\n", 846 SC_NAME(sc), xfer, xfer->busy_free, 0); 847 slhci_lock_call(sc, &slhci_halt, NULL, NULL); 848 return; 849 } 850 xfer->busy_free = XFER_FREE; 851 #endif 852 853 free(xfer, M_USB); 854 } 855 856 static void 857 slhci_get_lock(struct usbd_bus *bus, kmutex_t **lock) 858 { 859 struct slhci_softc *sc = bus->hci_private; 860 861 *lock = &sc->sc_lock; 862 } 863 864 usbd_status 865 slhci_transfer(struct usbd_xfer *xfer) 866 { 867 struct slhci_softc *sc = xfer->pipe->device->bus->hci_private; 868 usbd_status error; 869 870 DLOG(D_TRACE, "%s transfer xfer %p spipe %p ", 871 pnames(SLHCI_XFER_TYPE(xfer)), xfer, xfer->pipe,0); 872 873 /* Insert last in queue */ 874 mutex_enter(&sc->sc_lock); 875 error = usb_insert_transfer(xfer); 876 mutex_exit(&sc->sc_lock); 877 if (error) { 878 if (error != USBD_IN_PROGRESS) 879 DLOG(D_ERR, "usb_insert_transfer returns %d!", error, 880 0,0,0); 881 return error; 882 } 883 884 /* 885 * Pipe isn't running (otherwise error would be USBD_INPROG), 886 * so start it first. 887 */ 888 889 /* 890 * Start will take the lock. 891 */ 892 error = xfer->pipe->methods->start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 893 894 return error; 895 } 896 897 /* It is not safe for start to return anything other than USBD_INPROG. */ 898 usbd_status 899 slhci_start(struct usbd_xfer *xfer) 900 { 901 struct slhci_softc *sc = xfer->pipe->device->bus->hci_private; 902 struct usbd_pipe *pipe = xfer->pipe; 903 struct slhci_pipe *spipe = (struct slhci_pipe *)pipe; 904 struct slhci_transfers *t = &sc->sc_transfers; 905 ; usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 906 unsigned int max_packet; 907 908 mutex_enter(&sc->sc_lock); 909 910 max_packet = UGETW(ed->wMaxPacketSize); 911 912 DLOG(D_TRACE, "%s start xfer %p spipe %p length %d", 913 pnames(spipe->ptype), xfer, spipe, xfer->length); 914 915 /* root transfers use slhci_root_start */ 916 917 KASSERT(spipe->xfer == NULL); /* not SLASSERT */ 918 919 xfer->actlen = 0; 920 xfer->status = USBD_IN_PROGRESS; 921 922 spipe->xfer = xfer; 923 924 spipe->nerrs = 0; 925 spipe->frame = t->frame; 926 spipe->control = SL11_EPCTRL_ARM_ENABLE; 927 spipe->tregs[DEV] = pipe->device->address; 928 spipe->tregs[PID] = spipe->newpid = UE_GET_ADDR(ed->bEndpointAddress) 929 | (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? SL11_PID_IN : 930 SL11_PID_OUT); 931 spipe->newlen[0] = xfer->length % max_packet; 932 spipe->newlen[1] = min(xfer->length, max_packet); 933 934 if (spipe->ptype == PT_BULK || spipe->ptype == PT_INTR) { 935 if (spipe->pflags & PF_TOGGLE) 936 spipe->control |= SL11_EPCTRL_DATATOGGLE; 937 spipe->tregs[LEN] = spipe->newlen[1]; 938 if (spipe->tregs[LEN]) 939 spipe->buffer = KERNADDR(&xfer->dmabuf, 0); 940 else 941 spipe->buffer = NULL; 942 spipe->lastframe = t->frame; 943 #if defined(DEBUG) || defined(SLHCI_DEBUG) 944 if (__predict_false(spipe->ptype == PT_INTR && 945 xfer->length > spipe->tregs[LEN])) { 946 printf("%s: Long INTR transfer not supported!\n", 947 SC_NAME(sc)); 948 DDOLOG("%s: Long INTR transfer not supported!\n", 949 SC_NAME(sc), 0,0,0); 950 xfer->status = USBD_INVAL; 951 } 952 #endif 953 } else { 954 /* ptype may be currently set to any control transfer type. */ 955 SLHCI_DEXEC(D_TRACE, slhci_log_xfer(xfer)); 956 957 /* SETUP contains IN/OUT bits also */ 958 spipe->tregs[PID] |= SL11_PID_SETUP; 959 spipe->tregs[LEN] = 8; 960 spipe->buffer = (uint8_t *)&xfer->request; 961 DLOGBUF(D_XFER, spipe->buffer, spipe->tregs[LEN]); 962 spipe->ptype = PT_CTRL_SETUP; 963 spipe->newpid &= ~SL11_PID_BITS; 964 if (xfer->length == 0 || (xfer->request.bmRequestType & 965 UT_READ)) 966 spipe->newpid |= SL11_PID_IN; 967 else 968 spipe->newpid |= SL11_PID_OUT; 969 } 970 971 if (xfer->flags & USBD_FORCE_SHORT_XFER && spipe->tregs[LEN] == 972 max_packet && (spipe->newpid & SL11_PID_BITS) == SL11_PID_OUT) 973 spipe->wantshort = 1; 974 else 975 spipe->wantshort = 0; 976 977 /* 978 * The goal of newbustime and newlen is to avoid bustime calculation 979 * in the interrupt. The calculations are not too complex, but they 980 * complicate the conditional logic somewhat and doing them all in the 981 * same place shares constants. Index 0 is "short length" for bulk and 982 * ctrl data and 1 is "full length" for ctrl data (bulk/intr are 983 * already set to full length). 984 */ 985 if (spipe->pflags & PF_LS) { 986 /* 987 * Setting PREAMBLE for directly connnected LS devices will 988 * lock up the chip. 989 */ 990 if (spipe->pflags & PF_PREAMBLE) 991 spipe->control |= SL11_EPCTRL_PREAMBLE; 992 if (max_packet <= 8) { 993 spipe->bustime = SLHCI_LS_CONST + 994 SLHCI_LS_DATA_TIME(spipe->tregs[LEN]); 995 spipe->newbustime[0] = SLHCI_LS_CONST + 996 SLHCI_LS_DATA_TIME(spipe->newlen[0]); 997 spipe->newbustime[1] = SLHCI_LS_CONST + 998 SLHCI_LS_DATA_TIME(spipe->newlen[1]); 999 } else 1000 xfer->status = USBD_INVAL; 1001 } else { 1002 UL_SLASSERT(pipe->device->speed == USB_SPEED_FULL, sc, 1003 spipe, xfer, return USBD_IN_PROGRESS); 1004 if (max_packet <= SL11_MAX_PACKET_SIZE) { 1005 spipe->bustime = SLHCI_FS_CONST + 1006 SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); 1007 spipe->newbustime[0] = SLHCI_FS_CONST + 1008 SLHCI_FS_DATA_TIME(spipe->newlen[0]); 1009 spipe->newbustime[1] = SLHCI_FS_CONST + 1010 SLHCI_FS_DATA_TIME(spipe->newlen[1]); 1011 } else 1012 xfer->status = USBD_INVAL; 1013 } 1014 1015 /* 1016 * The datasheet incorrectly indicates that DIRECTION is for 1017 * "transmit to host". It is for OUT and SETUP. The app note 1018 * describes its use correctly. 1019 */ 1020 if ((spipe->tregs[PID] & SL11_PID_BITS) != SL11_PID_IN) 1021 spipe->control |= SL11_EPCTRL_DIRECTION; 1022 1023 slhci_start_entry(sc, spipe); 1024 1025 mutex_exit(&sc->sc_lock); 1026 1027 return USBD_IN_PROGRESS; 1028 } 1029 1030 usbd_status 1031 slhci_root_start(struct usbd_xfer *xfer) 1032 { 1033 struct slhci_softc *sc; 1034 struct slhci_pipe *spipe; 1035 1036 spipe = (struct slhci_pipe *)xfer->pipe; 1037 sc = xfer->pipe->device->bus->hci_private; 1038 1039 return slhci_lock_call(sc, &slhci_root, spipe, xfer); 1040 } 1041 1042 usbd_status 1043 slhci_open(struct usbd_pipe *pipe) 1044 { 1045 struct usbd_device *dev; 1046 struct slhci_softc *sc; 1047 struct slhci_pipe *spipe; 1048 usb_endpoint_descriptor_t *ed; 1049 struct slhci_transfers *t; 1050 unsigned int max_packet, pmaxpkt; 1051 1052 dev = pipe->device; 1053 sc = dev->bus->hci_private; 1054 spipe = (struct slhci_pipe *)pipe; 1055 ed = pipe->endpoint->edesc; 1056 t = &sc->sc_transfers; 1057 1058 DLOG(D_TRACE, "slhci_open(addr=%d,ep=%d,rootaddr=%d)", 1059 dev->address, ed->bEndpointAddress, t->rootaddr, 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->speed == USB_SPEED_LOW) { 1080 spipe->pflags |= PF_LS; 1081 if (dev->myhub->address != t->rootaddr) { 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->address == t->rootaddr) { 1098 switch (ed->bEndpointAddress) { 1099 case USB_CONTROL_ENDPOINT: 1100 spipe->ptype = PT_ROOT_CTRL; 1101 pipe->interval = 0; 1102 break; 1103 case UE_DIR_IN | ROOT_INTR_ENDPT: 1104 spipe->ptype = PT_ROOT_INTR; 1105 pipe->interval = 1; 1106 break; 1107 default: 1108 printf("%s: Invalid root endpoint!\n", SC_NAME(sc)); 1109 DDOLOG("%s: Invalid root endpoint!\n", SC_NAME(sc), 1110 0,0,0); 1111 return USBD_INVAL; 1112 } 1113 pipe->methods = __UNCONST(&slhci_root_methods); 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->interval = 0; 1120 break; 1121 case UE_INTERRUPT: 1122 spipe->ptype = PT_INTR; 1123 if (pipe->interval == USBD_DEFAULT_INTERVAL) 1124 pipe->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->interval = 0; 1132 break; 1133 } 1134 1135 DLOG(D_MSG, "open pipe %s interval %d", pnames(spipe->ptype), 1136 pipe->interval, 0,0); 1137 1138 pipe->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 KERNHIST_INIT_STATIC(slhcihist, slhci_he); 1166 #endif 1167 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SOFTUSB); 1168 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_SCHED); 1169 1170 /* sc->sc_ier = 0; */ 1171 /* t->rootintr = NULL; */ 1172 t->flags = F_NODEV|F_UDISABLED; 1173 t->pend = INT_MAX; 1174 KASSERT(slhci_wait_time != INT_MAX); 1175 t->len[0] = t->len[1] = -1; 1176 if (max_current > 500) 1177 max_current = 500; 1178 t->max_current = (uint8_t)(max_current / 2); 1179 sc->sc_enable_power = pow; 1180 sc->sc_iot = iot; 1181 sc->sc_ioh = ioh; 1182 sc->sc_stride = stride; 1183 1184 KASSERT(Q_MAX+1 == sizeof(t->q) / sizeof(t->q[0])); 1185 1186 for (i = 0; i <= Q_MAX; i++) 1187 gcq_init_head(&t->q[i]); 1188 gcq_init_head(&t->timed); 1189 gcq_init_head(&t->to); 1190 gcq_init_head(&t->ap); 1191 gcq_init_head(&sc->sc_waitq); 1192 } 1193 1194 int 1195 slhci_attach(struct slhci_softc *sc) 1196 { 1197 struct slhci_transfers *t; 1198 const char *rev; 1199 1200 t = &sc->sc_transfers; 1201 1202 /* Detect and check the controller type */ 1203 t->sltype = SL11_GET_REV(slhci_read(sc, SL11_REV)); 1204 1205 /* SL11H not supported */ 1206 if (!slhci_supported_rev(t->sltype)) { 1207 if (t->sltype == SLTYPE_SL11H) 1208 printf("%s: SL11H unsupported or bus error!\n", 1209 SC_NAME(sc)); 1210 else 1211 printf("%s: Unknown chip revision!\n", SC_NAME(sc)); 1212 return -1; 1213 } 1214 1215 callout_init(&sc->sc_timer, CALLOUT_MPSAFE); 1216 callout_setfunc(&sc->sc_timer, slhci_reset_entry, sc); 1217 1218 /* 1219 * It is not safe to call the soft interrupt directly as 1220 * usb_schedsoftintr does in the use_polling case (due to locking). 1221 */ 1222 sc->sc_cb_softintr = softint_establish(SOFTINT_NET, 1223 slhci_callback_entry, sc); 1224 1225 #ifdef SLHCI_DEBUG 1226 ssc = sc; 1227 #ifdef USB_DEBUG 1228 if (slhci_usbdebug >= 0) 1229 usbdebug = slhci_usbdebug; 1230 #endif 1231 #endif 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.usbrev = USBREV_1_1; 1264 sc->sc_bus.methods = __UNCONST(&slhci_bus_methods); 1265 sc->sc_bus.pipe_size = sizeof(struct slhci_pipe); 1266 1267 if (!sc->sc_enable_power) 1268 t->flags |= F_REALPOWER; 1269 1270 t->flags |= F_ACTIVE; 1271 1272 /* Attach usb and uhub. */ 1273 sc->sc_child = config_found(SC_DEV(sc), &sc->sc_bus, usbctlprint); 1274 1275 if (!sc->sc_child) 1276 return -1; 1277 else 1278 return 0; 1279 } 1280 1281 int 1282 slhci_detach(struct slhci_softc *sc, int flags) 1283 { 1284 struct slhci_transfers *t; 1285 int ret; 1286 1287 t = &sc->sc_transfers; 1288 1289 /* By this point bus access is no longer allowed. */ 1290 1291 KASSERT(!(t->flags & F_ACTIVE)); 1292 1293 /* 1294 * To be MPSAFE is not sufficient to cancel callouts and soft 1295 * interrupts and assume they are dead since the code could already be 1296 * running or about to run. Wait until they are known to be done. 1297 */ 1298 while (t->flags & (F_RESET|F_CALLBACK)) 1299 tsleep(&sc, PPAUSE, "slhci_detach", hz); 1300 1301 softint_disestablish(sc->sc_cb_softintr); 1302 1303 mutex_destroy(&sc->sc_lock); 1304 mutex_destroy(&sc->sc_intr_lock); 1305 1306 ret = 0; 1307 1308 if (sc->sc_child) 1309 ret = config_detach(sc->sc_child, flags); 1310 1311 #ifdef SLHCI_MEM_ACCOUNTING 1312 if (sc->sc_mem_use) { 1313 printf("%s: Memory still in use after detach! mem_use (count)" 1314 " = %d\n", SC_NAME(sc), sc->sc_mem_use); 1315 DDOLOG("%s: Memory still in use after detach! mem_use (count)" 1316 " = %d\n", SC_NAME(sc), sc->sc_mem_use, 0,0); 1317 } 1318 #endif 1319 1320 return ret; 1321 } 1322 1323 int 1324 slhci_activate(device_t self, enum devact act) 1325 { 1326 struct slhci_softc *sc = device_private(self); 1327 1328 switch (act) { 1329 case DVACT_DEACTIVATE: 1330 slhci_lock_call(sc, &slhci_halt, NULL, NULL); 1331 return 0; 1332 default: 1333 return EOPNOTSUPP; 1334 } 1335 } 1336 1337 void 1338 slhci_abort(struct usbd_xfer *xfer) 1339 { 1340 struct slhci_softc *sc; 1341 struct slhci_pipe *spipe; 1342 1343 spipe = (struct slhci_pipe *)xfer->pipe; 1344 1345 if (spipe == NULL) 1346 goto callback; 1347 1348 sc = spipe->pipe.device->bus->hci_private; 1349 1350 KASSERT(mutex_owned(&sc->sc_lock)); 1351 1352 DLOG(D_TRACE, "%s abort xfer %p spipe %p spipe->xfer %p", 1353 pnames(spipe->ptype), xfer, spipe, spipe->xfer); 1354 1355 slhci_lock_call(sc, &slhci_do_abort, spipe, xfer); 1356 1357 callback: 1358 xfer->status = USBD_CANCELLED; 1359 /* Abort happens at IPL_USB. */ 1360 usb_transfer_complete(xfer); 1361 } 1362 1363 void 1364 slhci_close(struct usbd_pipe *pipe) 1365 { 1366 struct slhci_softc *sc; 1367 struct slhci_pipe *spipe; 1368 1369 sc = pipe->device->bus->hci_private; 1370 spipe = (struct slhci_pipe *)pipe; 1371 1372 DLOG(D_TRACE, "%s close spipe %p spipe->xfer %p", 1373 pnames(spipe->ptype), spipe, spipe->xfer, 0); 1374 1375 slhci_lock_call(sc, &slhci_close_pipe, spipe, NULL); 1376 } 1377 1378 void 1379 slhci_clear_toggle(struct usbd_pipe *pipe) 1380 { 1381 struct slhci_pipe *spipe; 1382 1383 spipe = (struct slhci_pipe *)pipe; 1384 1385 DLOG(D_TRACE, "%s toggle spipe %p", pnames(spipe->ptype), 1386 spipe,0,0); 1387 1388 spipe->pflags &= ~PF_TOGGLE; 1389 1390 #ifdef DIAGNOSTIC 1391 if (spipe->xfer != NULL) { 1392 struct slhci_softc *sc = (struct slhci_softc 1393 *)pipe->device->bus; 1394 1395 printf("%s: Clear toggle on transfer in progress! halted\n", 1396 SC_NAME(sc)); 1397 DDOLOG("%s: Clear toggle on transfer in progress! halted\n", 1398 SC_NAME(sc), 0,0,0); 1399 slhci_halt(sc, NULL, NULL); 1400 } 1401 #endif 1402 } 1403 1404 void 1405 slhci_poll(struct usbd_bus *bus) /* XXX necessary? */ 1406 { 1407 struct slhci_softc *sc; 1408 1409 sc = bus->hci_private; 1410 1411 DLOG(D_TRACE, "slhci_poll", 0,0,0,0); 1412 1413 slhci_lock_call(sc, &slhci_do_poll, NULL, NULL); 1414 } 1415 1416 void 1417 slhci_done(struct usbd_xfer *xfer) 1418 { 1419 /* xfer may not be valid here */ 1420 } 1421 1422 void 1423 slhci_void(void *v) {} 1424 1425 /* End out of lock functions. Start lock entry functions. */ 1426 1427 #ifdef SLHCI_MEM_ACCOUNTING 1428 void 1429 slhci_mem_use(struct usbd_bus *bus, int val) 1430 { 1431 struct slhci_softc *sc = bus->hci_private; 1432 int s; 1433 1434 mutex_enter(&sc->sc_intr_lock); 1435 sc->sc_mem_use += val; 1436 mutex_exit(&sc->sc_intr_lock); 1437 } 1438 #endif 1439 1440 void 1441 slhci_reset_entry(void *arg) 1442 { 1443 struct slhci_softc *sc = arg; 1444 1445 mutex_enter(&sc->sc_intr_lock); 1446 slhci_reset(sc); 1447 /* 1448 * We cannot call the callback directly since we could then be reset 1449 * again before finishing and need the callout delay for timing. 1450 * Scheduling the callout again before we exit would defeat the reap 1451 * mechanism since we could be unlocked while the reset flag is not 1452 * set. The callback code will check the wait queue. 1453 */ 1454 slhci_callback_schedule(sc); 1455 mutex_exit(&sc->sc_intr_lock); 1456 } 1457 1458 usbd_status 1459 slhci_lock_call(struct slhci_softc *sc, LockCallFunc lcf, struct slhci_pipe 1460 *spipe, struct usbd_xfer *xfer) 1461 { 1462 usbd_status ret; 1463 1464 mutex_enter(&sc->sc_intr_lock); 1465 ret = (*lcf)(sc, spipe, xfer); 1466 slhci_main(sc); 1467 mutex_exit(&sc->sc_intr_lock); 1468 1469 return ret; 1470 } 1471 1472 void 1473 slhci_start_entry(struct slhci_softc *sc, struct slhci_pipe *spipe) 1474 { 1475 struct slhci_transfers *t; 1476 1477 mutex_enter(&sc->sc_intr_lock); 1478 t = &sc->sc_transfers; 1479 1480 if (!(t->flags & (F_AINPROG|F_BINPROG))) { 1481 slhci_enter_xfer(sc, spipe); 1482 slhci_dotransfer(sc); 1483 slhci_main(sc); 1484 } else { 1485 enter_waitq(sc, spipe); 1486 } 1487 mutex_exit(&sc->sc_intr_lock); 1488 } 1489 1490 void 1491 slhci_callback_entry(void *arg) 1492 { 1493 struct slhci_softc *sc; 1494 struct slhci_transfers *t; 1495 1496 sc = (struct slhci_softc *)arg; 1497 1498 mutex_enter(&sc->sc_intr_lock); 1499 t = &sc->sc_transfers; 1500 DLOG(D_SOFT, "callback_entry flags %#x", t->flags, 0,0,0); 1501 1502 repeat: 1503 slhci_callback(sc); 1504 1505 if (!gcq_empty(&sc->sc_waitq)) { 1506 slhci_enter_xfers(sc); 1507 slhci_dotransfer(sc); 1508 slhci_waitintr(sc, 0); 1509 goto repeat; 1510 } 1511 1512 t->flags &= ~F_CALLBACK; 1513 mutex_exit(&sc->sc_intr_lock); 1514 } 1515 1516 void 1517 slhci_do_callback(struct slhci_softc *sc, struct usbd_xfer *xfer) 1518 { 1519 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1520 1521 int repeat; 1522 1523 start_cc_time(&t_callback, (u_int)xfer); 1524 mutex_exit(&sc->sc_intr_lock); 1525 1526 mutex_enter(&sc->sc_lock); 1527 repeat = xfer->pipe->repeat; 1528 usb_transfer_complete(xfer); 1529 mutex_exit(&sc->sc_lock); 1530 1531 mutex_enter(&sc->sc_intr_lock); 1532 stop_cc_time(&t_callback); 1533 1534 if (repeat && !sc->sc_bus.use_polling) 1535 slhci_do_repeat(sc, xfer); 1536 } 1537 1538 int 1539 slhci_intr(void *arg) 1540 { 1541 struct slhci_softc *sc = arg; 1542 int ret; 1543 1544 start_cc_time(&t_hard_int, (unsigned int)arg); 1545 mutex_enter(&sc->sc_intr_lock); 1546 1547 ret = slhci_dointr(sc); 1548 slhci_main(sc); 1549 mutex_exit(&sc->sc_intr_lock); 1550 1551 stop_cc_time(&t_hard_int); 1552 return ret; 1553 } 1554 1555 /* called with main lock only held, returns with locks released. */ 1556 void 1557 slhci_main(struct slhci_softc *sc) 1558 { 1559 struct slhci_transfers *t; 1560 1561 t = &sc->sc_transfers; 1562 1563 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1564 1565 waitcheck: 1566 slhci_waitintr(sc, slhci_wait_time); 1567 1568 /* 1569 * The direct call is needed in the use_polling and disabled cases 1570 * since the soft interrupt is not available. In the disabled case, 1571 * this code can be reached from the usb detach, after the reaping of 1572 * the soft interrupt. That test could be !F_ACTIVE, but there is no 1573 * reason not to make the callbacks directly in the other DISABLED 1574 * cases. 1575 */ 1576 if ((t->flags & F_ROOTINTR) || !gcq_empty(&t->q[Q_CALLBACKS])) { 1577 if (__predict_false(sc->sc_bus.use_polling || 1578 t->flags & F_DISABLED)) 1579 slhci_callback(sc); 1580 else 1581 slhci_callback_schedule(sc); 1582 } 1583 1584 if (!gcq_empty(&sc->sc_waitq)) { 1585 slhci_enter_xfers(sc); 1586 slhci_dotransfer(sc); 1587 goto waitcheck; 1588 } 1589 } 1590 1591 /* End lock entry functions. Start in lock function. */ 1592 1593 /* Register read/write routines and barriers. */ 1594 #ifdef SLHCI_BUS_SPACE_BARRIERS 1595 #define BSB(a, b, c, d, e) bus_space_barrier(a, b, c, d, BUS_SPACE_BARRIER_ # e) 1596 #define BSB_SYNC(a, b, c, d) bus_space_barrier(a, b, c, d, BUS_SPACE_BARRIER_SYNC) 1597 #else /* now !SLHCI_BUS_SPACE_BARRIERS */ 1598 #define BSB(a, b, c, d, e) __USE(d) 1599 #define BSB_SYNC(a, b, c, d) 1600 #endif /* SLHCI_BUS_SPACE_BARRIERS */ 1601 1602 static void 1603 slhci_write(struct slhci_softc *sc, uint8_t addr, uint8_t data) 1604 { 1605 bus_size_t paddr, pdata, pst, psz; 1606 bus_space_tag_t iot; 1607 bus_space_handle_t ioh; 1608 1609 paddr = pst = 0; 1610 pdata = sc->sc_stride; 1611 psz = pdata * 2; 1612 iot = sc->sc_iot; 1613 ioh = sc->sc_ioh; 1614 1615 bus_space_write_1(iot, ioh, paddr, addr); 1616 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1617 bus_space_write_1(iot, ioh, pdata, data); 1618 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1619 } 1620 1621 static uint8_t 1622 slhci_read(struct slhci_softc *sc, uint8_t addr) 1623 { 1624 bus_size_t paddr, pdata, pst, psz; 1625 bus_space_tag_t iot; 1626 bus_space_handle_t ioh; 1627 uint8_t data; 1628 1629 paddr = pst = 0; 1630 pdata = sc->sc_stride; 1631 psz = pdata * 2; 1632 iot = sc->sc_iot; 1633 ioh = sc->sc_ioh; 1634 1635 bus_space_write_1(iot, ioh, paddr, addr); 1636 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1637 data = bus_space_read_1(iot, ioh, pdata); 1638 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1639 return data; 1640 } 1641 1642 #if 0 /* auto-increment mode broken, see errata doc */ 1643 static void 1644 slhci_write_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1645 { 1646 bus_size_t paddr, pdata, pst, psz; 1647 bus_space_tag_t iot; 1648 bus_space_handle_t ioh; 1649 1650 paddr = pst = 0; 1651 pdata = sc->sc_stride; 1652 psz = pdata * 2; 1653 iot = sc->sc_iot; 1654 ioh = sc->sc_ioh; 1655 1656 bus_space_write_1(iot, ioh, paddr, addr); 1657 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1658 bus_space_write_multi_1(iot, ioh, pdata, buf, l); 1659 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1660 } 1661 1662 static void 1663 slhci_read_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1664 { 1665 bus_size_t paddr, pdata, pst, psz; 1666 bus_space_tag_t iot; 1667 bus_space_handle_t ioh; 1668 1669 paddr = pst = 0; 1670 pdata = sc->sc_stride; 1671 psz = pdata * 2; 1672 iot = sc->sc_iot; 1673 ioh = sc->sc_ioh; 1674 1675 bus_space_write_1(iot, ioh, paddr, addr); 1676 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1677 bus_space_read_multi_1(iot, ioh, pdata, buf, l); 1678 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1679 } 1680 #else 1681 static void 1682 slhci_write_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1683 { 1684 #if 1 1685 for (; l; addr++, buf++, l--) 1686 slhci_write(sc, addr, *buf); 1687 #else 1688 bus_size_t paddr, pdata, pst, psz; 1689 bus_space_tag_t iot; 1690 bus_space_handle_t ioh; 1691 1692 paddr = pst = 0; 1693 pdata = sc->sc_stride; 1694 psz = pdata * 2; 1695 iot = sc->sc_iot; 1696 ioh = sc->sc_ioh; 1697 1698 for (; l; addr++, buf++, l--) { 1699 bus_space_write_1(iot, ioh, paddr, addr); 1700 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1701 bus_space_write_1(iot, ioh, pdata, *buf); 1702 BSB(iot, ioh, pst, psz, WRITE_BEFORE_WRITE); 1703 } 1704 #endif 1705 } 1706 1707 static void 1708 slhci_read_multi(struct slhci_softc *sc, uint8_t addr, uint8_t *buf, int l) 1709 { 1710 #if 1 1711 for (; l; addr++, buf++, l--) 1712 *buf = slhci_read(sc, addr); 1713 #else 1714 bus_size_t paddr, pdata, pst, psz; 1715 bus_space_tag_t iot; 1716 bus_space_handle_t ioh; 1717 1718 paddr = pst = 0; 1719 pdata = sc->sc_stride; 1720 psz = pdata * 2; 1721 iot = sc->sc_iot; 1722 ioh = sc->sc_ioh; 1723 1724 for (; l; addr++, buf++, l--) { 1725 bus_space_write_1(iot, ioh, paddr, addr); 1726 BSB(iot, ioh, pst, psz, WRITE_BEFORE_READ); 1727 *buf = bus_space_read_1(iot, ioh, pdata); 1728 BSB(iot, ioh, pst, psz, READ_BEFORE_WRITE); 1729 } 1730 #endif 1731 } 1732 #endif 1733 1734 /* 1735 * After calling waitintr it is necessary to either call slhci_callback or 1736 * schedule the callback if necessary. The callback cannot be called directly 1737 * from the hard interrupt since it interrupts at a high IPL and callbacks 1738 * can do copyout and such. 1739 */ 1740 static void 1741 slhci_waitintr(struct slhci_softc *sc, int wait_time) 1742 { 1743 struct slhci_transfers *t; 1744 1745 t = &sc->sc_transfers; 1746 1747 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1748 1749 if (__predict_false(sc->sc_bus.use_polling)) 1750 wait_time = 12000; 1751 1752 while (t->pend <= wait_time) { 1753 DLOG(D_WAIT, "waiting... frame %d pend %d flags %#x", 1754 t->frame, t->pend, t->flags, 0); 1755 LK_SLASSERT(t->flags & F_ACTIVE, sc, NULL, NULL, return); 1756 LK_SLASSERT(t->flags & (F_AINPROG|F_BINPROG), sc, NULL, NULL, 1757 return); 1758 slhci_dointr(sc); 1759 } 1760 } 1761 1762 static int 1763 slhci_dointr(struct slhci_softc *sc) 1764 { 1765 struct slhci_transfers *t; 1766 struct slhci_pipe *tosp; 1767 uint8_t r; 1768 1769 t = &sc->sc_transfers; 1770 1771 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1772 1773 if (sc->sc_ier == 0) 1774 return 0; 1775 1776 r = slhci_read(sc, SL11_ISR); 1777 1778 #ifdef SLHCI_DEBUG 1779 if (slhci_debug & SLHCI_D_INTR && r & sc->sc_ier && 1780 ((r & ~(SL11_ISR_SOF|SL11_ISR_DATA)) || slhci_debug & 1781 SLHCI_D_SOF)) { 1782 uint8_t e, f; 1783 1784 e = slhci_read(sc, SL11_IER); 1785 f = slhci_read(sc, SL11_CTRL); 1786 DDOLOG("Flags=%#x IER=%#x ISR=%#x", t->flags, e, r, 0); 1787 DDOLOGFLAG8("Status=", r, "D+", (f & SL11_CTRL_SUSPEND) ? 1788 "RESUME" : "NODEV", "INSERT", "SOF", "res", "BABBLE", 1789 "USBB", "USBA"); 1790 } 1791 #endif 1792 1793 /* 1794 * check IER for corruption occasionally. Assume that the above 1795 * sc_ier == 0 case works correctly. 1796 */ 1797 if (__predict_false(sc->sc_ier_check++ > SLHCI_IER_CHECK_FREQUENCY)) { 1798 sc->sc_ier_check = 0; 1799 if (sc->sc_ier != slhci_read(sc, SL11_IER)) { 1800 printf("%s: IER value corrupted! halted\n", 1801 SC_NAME(sc)); 1802 DDOLOG("%s: IER value corrupted! halted\n", 1803 SC_NAME(sc), 0,0,0); 1804 slhci_halt(sc, NULL, NULL); 1805 return 1; 1806 } 1807 } 1808 1809 r &= sc->sc_ier; 1810 1811 if (r == 0) 1812 return 0; 1813 1814 sc->sc_ier_check = 0; 1815 1816 slhci_write(sc, SL11_ISR, r); 1817 BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); 1818 1819 /* If we have an insertion event we do not care about anything else. */ 1820 if (__predict_false(r & SL11_ISR_INSERT)) { 1821 slhci_insert(sc); 1822 return 1; 1823 } 1824 1825 stop_cc_time(&t_intr); 1826 start_cc_time(&t_intr, r); 1827 1828 if (r & SL11_ISR_SOF) { 1829 t->frame++; 1830 1831 gcq_merge_tail(&t->q[Q_CB], &t->q[Q_NEXT_CB]); 1832 1833 /* 1834 * SOFCHECK flags are cleared in tstart. Two flags are needed 1835 * since the first SOF interrupt processed after the transfer 1836 * is started might have been generated before the transfer 1837 * was started. 1838 */ 1839 if (__predict_false(t->flags & F_SOFCHECK2 && t->flags & 1840 (F_AINPROG|F_BINPROG))) { 1841 printf("%s: Missed transfer completion. halted\n", 1842 SC_NAME(sc)); 1843 DDOLOG("%s: Missed transfer completion. halted\n", 1844 SC_NAME(sc), 0,0,0); 1845 slhci_halt(sc, NULL, NULL); 1846 return 1; 1847 } else if (t->flags & F_SOFCHECK1) { 1848 t->flags |= F_SOFCHECK2; 1849 } else 1850 t->flags |= F_SOFCHECK1; 1851 1852 if (t->flags & F_CHANGE) 1853 t->flags |= F_ROOTINTR; 1854 1855 while (__predict_true(GOT_FIRST_TO(tosp, t)) && 1856 __predict_false(tosp->to_frame <= t->frame)) { 1857 tosp->xfer->status = USBD_TIMEOUT; 1858 slhci_do_abort(sc, tosp, tosp->xfer); 1859 enter_callback(t, tosp); 1860 } 1861 1862 /* 1863 * Start any waiting transfers right away. If none, we will 1864 * start any new transfers later. 1865 */ 1866 slhci_tstart(sc); 1867 } 1868 1869 if (r & (SL11_ISR_USBA|SL11_ISR_USBB)) { 1870 int ab; 1871 1872 if ((r & (SL11_ISR_USBA|SL11_ISR_USBB)) == 1873 (SL11_ISR_USBA|SL11_ISR_USBB)) { 1874 if (!(t->flags & (F_AINPROG|F_BINPROG))) 1875 return 1; /* presume card pulled */ 1876 1877 LK_SLASSERT((t->flags & (F_AINPROG|F_BINPROG)) != 1878 (F_AINPROG|F_BINPROG), sc, NULL, NULL, return 1); 1879 1880 /* 1881 * This should never happen (unless card removal just 1882 * occurred) but appeared frequently when both 1883 * transfers were started at the same time and was 1884 * accompanied by data corruption. It still happens 1885 * at times. I have not seen data correption except 1886 * when the STATUS bit gets set, which now causes the 1887 * driver to halt, however this should still not 1888 * happen so the warning is kept. See comment in 1889 * abdone, below. 1890 */ 1891 printf("%s: Transfer reported done but not started! " 1892 "Verify data integrity if not detaching. " 1893 " flags %#x r %x\n", SC_NAME(sc), t->flags, r); 1894 1895 if (!(t->flags & F_AINPROG)) 1896 r &= ~SL11_ISR_USBA; 1897 else 1898 r &= ~SL11_ISR_USBB; 1899 } 1900 t->pend = INT_MAX; 1901 1902 if (r & SL11_ISR_USBA) 1903 ab = A; 1904 else 1905 ab = B; 1906 1907 /* 1908 * This happens when a low speed device is attached to 1909 * a hub with chip rev 1.5. SOF stops, but a few transfers 1910 * still work before causing this error. 1911 */ 1912 if (!(t->flags & (ab ? F_BINPROG : F_AINPROG))) { 1913 printf("%s: %s done but not in progress! halted\n", 1914 SC_NAME(sc), ab ? "B" : "A"); 1915 DDOLOG("%s: %s done but not in progress! halted\n", 1916 SC_NAME(sc), ab ? "B" : "A", 0,0); 1917 slhci_halt(sc, NULL, NULL); 1918 return 1; 1919 } 1920 1921 t->flags &= ~(ab ? F_BINPROG : F_AINPROG); 1922 slhci_tstart(sc); 1923 stop_cc_time(&t_ab[ab]); 1924 start_cc_time(&t_abdone, t->flags); 1925 slhci_abdone(sc, ab); 1926 stop_cc_time(&t_abdone); 1927 } 1928 1929 slhci_dotransfer(sc); 1930 1931 return 1; 1932 } 1933 1934 static void 1935 slhci_abdone(struct slhci_softc *sc, int ab) 1936 { 1937 struct slhci_transfers *t; 1938 struct slhci_pipe *spipe; 1939 struct usbd_xfer *xfer; 1940 uint8_t status, buf_start; 1941 uint8_t *target_buf; 1942 unsigned int actlen; 1943 int head; 1944 1945 t = &sc->sc_transfers; 1946 1947 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1948 1949 DLOG(D_TRACE, "ABDONE flags %#x", t->flags, 0,0,0); 1950 1951 DLOG(D_MSG, "DONE %s spipe %p len %d xfer %p", ab ? "B" : "A", 1952 t->spipe[ab], t->len[ab], t->spipe[ab] ? 1953 t->spipe[ab]->xfer : NULL); 1954 1955 spipe = t->spipe[ab]; 1956 1957 /* 1958 * skip this one if aborted; do not call return from the rest of the 1959 * function unless halting, else t->len will not be cleared. 1960 */ 1961 if (spipe == NULL) 1962 goto done; 1963 1964 t->spipe[ab] = NULL; 1965 1966 xfer = spipe->xfer; 1967 1968 gcq_remove(&spipe->to); 1969 1970 LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); 1971 1972 status = slhci_read(sc, slhci_tregs[ab][STAT]); 1973 1974 /* 1975 * I saw no status or remaining length greater than the requested 1976 * length in early driver versions in circumstances I assumed caused 1977 * excess power draw. I am no longer able to reproduce this when 1978 * causing excess power draw circumstances. 1979 * 1980 * Disabling a power check and attaching aue to a keyboard and hub 1981 * that is directly attached (to CFU1U, 100mA max, aue 160mA, keyboard 1982 * 98mA) sometimes works and sometimes fails to configure. After 1983 * removing the aue and attaching a self-powered umass dvd reader 1984 * (unknown if it draws power from the host also) soon a single Error 1985 * status occurs then only timeouts. The controller soon halts freeing 1986 * memory due to being ONQU instead of BUSY. This may be the same 1987 * basic sequence that caused the no status/bad length errors. The 1988 * umass device seems to work (better at least) with the keyboard hub 1989 * when not first attaching aue (tested once reading an approximately 1990 * 200MB file). 1991 * 1992 * Overflow can indicate that the device and host disagree about how 1993 * much data has been transfered. This may indicate a problem at any 1994 * point during the transfer, not just when the error occurs. It may 1995 * indicate data corruption. A warning message is printed. 1996 * 1997 * Trying to use both A and B transfers at the same time results in 1998 * incorrect transfer completion ISR reports and the status will then 1999 * include SL11_EPSTAT_SETUP, which is apparently set while the 2000 * transfer is in progress. I also noticed data corruption, even 2001 * after waiting for the transfer to complete. The driver now avoids 2002 * trying to start both at the same time. 2003 * 2004 * I had accidently initialized the B registers before they were valid 2005 * in some driver versions. Since every other performance enhancing 2006 * feature has been confirmed buggy in the errata doc, I have not 2007 * tried both transfers at once again with the documented 2008 * initialization order. 2009 * 2010 * However, I have seen this problem again ("done but not started" 2011 * errors), which in some cases cases the SETUP status bit to remain 2012 * set on future transfers. In other cases, the SETUP bit is not set 2013 * and no data corruption occurs. This occured while using both umass 2014 * and aue on a powered hub (maybe triggered by some local activity 2015 * also) and needs several reads of the 200MB file to trigger. The 2016 * driver now halts if SETUP is detected. 2017 */ 2018 2019 actlen = 0; 2020 2021 if (__predict_false(!status)) { 2022 DDOLOG("no status! xfer %p spipe %p", xfer, spipe, 0,0); 2023 printf("%s: no status! halted\n", SC_NAME(sc)); 2024 slhci_halt(sc, spipe, xfer); 2025 return; 2026 } 2027 2028 #ifdef SLHCI_DEBUG 2029 if (slhci_debug & SLHCI_D_NAK || (status & SL11_EPSTAT_ERRBITS) != 2030 SL11_EPSTAT_NAK) 2031 DLOGFLAG8(D_XFER, "STATUS=", status, "STALL", "NAK", 2032 "Overflow", "Setup", "Data Toggle", "Timeout", "Error", 2033 "ACK"); 2034 #endif 2035 2036 if (!(status & SL11_EPSTAT_ERRBITS)) { 2037 unsigned int cont; 2038 cont = slhci_read(sc, slhci_tregs[ab][CONT]); 2039 if (cont != 0) 2040 DLOG(D_XFER, "cont %d len %d", cont, 2041 spipe->tregs[LEN], 0,0); 2042 if (__predict_false(cont > spipe->tregs[LEN])) { 2043 DDOLOG("cont > len! cont %d len %d xfer->length %d " 2044 "spipe %p", cont, spipe->tregs[LEN], xfer->length, 2045 spipe); 2046 printf("%s: cont > len! cont %d len %d xfer->length " 2047 "%d", SC_NAME(sc), cont, spipe->tregs[LEN], 2048 xfer->length); 2049 slhci_halt(sc, spipe, xfer); 2050 return; 2051 } else { 2052 spipe->nerrs = 0; 2053 actlen = spipe->tregs[LEN] - cont; 2054 } 2055 } 2056 2057 /* Actual copyin done after starting next transfer. */ 2058 if (actlen && (spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) { 2059 target_buf = spipe->buffer; 2060 buf_start = spipe->tregs[ADR]; 2061 } else { 2062 target_buf = NULL; 2063 buf_start = 0; /* XXX gcc uninitialized warnings */ 2064 } 2065 2066 if (status & SL11_EPSTAT_ERRBITS) { 2067 status &= SL11_EPSTAT_ERRBITS; 2068 if (status & SL11_EPSTAT_SETUP) { 2069 printf("%s: Invalid controller state detected! " 2070 "halted\n", SC_NAME(sc)); 2071 DDOLOG("%s: Invalid controller state detected! " 2072 "halted\n", SC_NAME(sc), 0,0,0); 2073 slhci_halt(sc, spipe, xfer); 2074 return; 2075 } else if (__predict_false(sc->sc_bus.use_polling)) { 2076 if (status == SL11_EPSTAT_STALL) 2077 xfer->status = USBD_STALLED; 2078 else if (status == SL11_EPSTAT_TIMEOUT) 2079 xfer->status = USBD_TIMEOUT; 2080 else if (status == SL11_EPSTAT_NAK) 2081 xfer->status = USBD_TIMEOUT; /*XXX*/ 2082 else 2083 xfer->status = USBD_IOERROR; 2084 head = Q_CALLBACKS; 2085 } else if (status == SL11_EPSTAT_NAK) { 2086 if (spipe->pipe.interval) { 2087 spipe->lastframe = spipe->frame = 2088 t->frame + spipe->pipe.interval; 2089 slhci_queue_timed(sc, spipe); 2090 goto queued; 2091 } 2092 head = Q_NEXT_CB; 2093 } else if (++spipe->nerrs > SLHCI_MAX_RETRIES || 2094 status == SL11_EPSTAT_STALL) { 2095 if (status == SL11_EPSTAT_STALL) 2096 xfer->status = USBD_STALLED; 2097 else if (status == SL11_EPSTAT_TIMEOUT) 2098 xfer->status = USBD_TIMEOUT; 2099 else 2100 xfer->status = USBD_IOERROR; 2101 2102 DLOG(D_ERR, "Max retries reached! status %#x " 2103 "xfer->status %#x", status, xfer->status, 0,0); 2104 DLOGFLAG8(D_ERR, "STATUS=", status, "STALL", 2105 "NAK", "Overflow", "Setup", "Data Toggle", 2106 "Timeout", "Error", "ACK"); 2107 2108 if (status == SL11_EPSTAT_OVERFLOW && 2109 ratecheck(&sc->sc_overflow_warn_rate, 2110 &overflow_warn_rate)) { 2111 printf("%s: Overflow condition: " 2112 "data corruption possible\n", 2113 SC_NAME(sc)); 2114 DDOLOG("%s: Overflow condition: " 2115 "data corruption possible\n", 2116 SC_NAME(sc), 0,0,0); 2117 } 2118 head = Q_CALLBACKS; 2119 } else { 2120 head = Q_NEXT_CB; 2121 } 2122 } else if (spipe->ptype == PT_CTRL_SETUP) { 2123 spipe->tregs[PID] = spipe->newpid; 2124 2125 if (xfer->length) { 2126 LK_SLASSERT(spipe->newlen[1] != 0, sc, spipe, xfer, 2127 return); 2128 spipe->tregs[LEN] = spipe->newlen[1]; 2129 spipe->bustime = spipe->newbustime[1]; 2130 spipe->buffer = KERNADDR(&xfer->dmabuf, 0); 2131 spipe->ptype = PT_CTRL_DATA; 2132 } else { 2133 status_setup: 2134 /* CTRL_DATA swaps direction in PID then jumps here */ 2135 spipe->tregs[LEN] = 0; 2136 if (spipe->pflags & PF_LS) 2137 spipe->bustime = SLHCI_LS_CONST; 2138 else 2139 spipe->bustime = SLHCI_FS_CONST; 2140 spipe->ptype = PT_CTRL_STATUS; 2141 spipe->buffer = NULL; 2142 } 2143 2144 /* Status or first data packet must be DATA1. */ 2145 spipe->control |= SL11_EPCTRL_DATATOGGLE; 2146 if ((spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) 2147 spipe->control &= ~SL11_EPCTRL_DIRECTION; 2148 else 2149 spipe->control |= SL11_EPCTRL_DIRECTION; 2150 2151 head = Q_CB; 2152 } else if (spipe->ptype == PT_CTRL_STATUS) { 2153 head = Q_CALLBACKS; 2154 } else { /* bulk, intr, control data */ 2155 xfer->actlen += actlen; 2156 spipe->control ^= SL11_EPCTRL_DATATOGGLE; 2157 2158 if (actlen == spipe->tregs[LEN] && (xfer->length > 2159 xfer->actlen || spipe->wantshort)) { 2160 spipe->buffer += actlen; 2161 LK_SLASSERT(xfer->length >= xfer->actlen, sc, 2162 spipe, xfer, return); 2163 if (xfer->length - xfer->actlen < actlen) { 2164 spipe->wantshort = 0; 2165 spipe->tregs[LEN] = spipe->newlen[0]; 2166 spipe->bustime = spipe->newbustime[0]; 2167 LK_SLASSERT(xfer->actlen + 2168 spipe->tregs[LEN] == xfer->length, sc, 2169 spipe, xfer, return); 2170 } 2171 head = Q_CB; 2172 } else if (spipe->ptype == PT_CTRL_DATA) { 2173 spipe->tregs[PID] ^= SLHCI_PID_SWAP_IN_OUT; 2174 goto status_setup; 2175 } else { 2176 if (spipe->ptype == PT_INTR) { 2177 spipe->lastframe += 2178 spipe->pipe.interval; 2179 /* 2180 * If ack, we try to keep the 2181 * interrupt rate by using lastframe 2182 * instead of the current frame. 2183 */ 2184 spipe->frame = spipe->lastframe + 2185 spipe->pipe.interval; 2186 } 2187 2188 /* 2189 * Set the toggle for the next transfer. It 2190 * has already been toggled above, so the 2191 * current setting will apply to the next 2192 * transfer. 2193 */ 2194 if (spipe->control & SL11_EPCTRL_DATATOGGLE) 2195 spipe->pflags |= PF_TOGGLE; 2196 else 2197 spipe->pflags &= ~PF_TOGGLE; 2198 2199 head = Q_CALLBACKS; 2200 } 2201 } 2202 2203 if (head == Q_CALLBACKS) { 2204 gcq_remove(&spipe->to); 2205 2206 if (xfer->status == USBD_IN_PROGRESS) { 2207 LK_SLASSERT(xfer->actlen <= xfer->length, sc, 2208 spipe, xfer, return); 2209 xfer->status = USBD_NORMAL_COMPLETION; 2210 #if 0 /* usb_transfer_complete will do this */ 2211 if (xfer->length == xfer->actlen || xfer->flags & 2212 USBD_SHORT_XFER_OK) 2213 xfer->status = USBD_NORMAL_COMPLETION; 2214 else 2215 xfer->status = USBD_SHORT_XFER; 2216 #endif 2217 } 2218 } 2219 2220 enter_q(t, spipe, head); 2221 2222 queued: 2223 if (target_buf != NULL) { 2224 slhci_dotransfer(sc); 2225 start_cc_time(&t_copy_from_dev, actlen); 2226 slhci_read_multi(sc, buf_start, target_buf, actlen); 2227 stop_cc_time(&t_copy_from_dev); 2228 DLOGBUF(D_BUF, target_buf, actlen); 2229 t->pend -= SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(actlen); 2230 } 2231 2232 done: 2233 t->len[ab] = -1; 2234 } 2235 2236 static void 2237 slhci_tstart(struct slhci_softc *sc) 2238 { 2239 struct slhci_transfers *t; 2240 struct slhci_pipe *spipe; 2241 int remaining_bustime; 2242 2243 t = &sc->sc_transfers; 2244 2245 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2246 2247 if (!(t->flags & (F_AREADY|F_BREADY))) 2248 return; 2249 2250 if (t->flags & (F_AINPROG|F_BINPROG|F_DISABLED)) 2251 return; 2252 2253 /* 2254 * We have about 6 us to get from the bus time check to 2255 * starting the transfer or we might babble or the chip might fail to 2256 * signal transfer complete. This leaves no time for any other 2257 * interrupts. 2258 */ 2259 remaining_bustime = (int)(slhci_read(sc, SL811_CSOF)) << 6; 2260 remaining_bustime -= SLHCI_END_BUSTIME; 2261 2262 /* 2263 * Start one transfer only, clearing any aborted transfers that are 2264 * not yet in progress and skipping missed isoc. It is easier to copy 2265 * & paste most of the A/B sections than to make the logic work 2266 * otherwise and this allows better constant use. 2267 */ 2268 if (t->flags & F_AREADY) { 2269 spipe = t->spipe[A]; 2270 if (spipe == NULL) { 2271 t->flags &= ~F_AREADY; 2272 t->len[A] = -1; 2273 } else if (remaining_bustime >= spipe->bustime) { 2274 t->flags &= ~(F_AREADY|F_SOFCHECK1|F_SOFCHECK2); 2275 t->flags |= F_AINPROG; 2276 start_cc_time(&t_ab[A], spipe->tregs[LEN]); 2277 slhci_write(sc, SL11_E0CTRL, spipe->control); 2278 goto pend; 2279 } 2280 } 2281 if (t->flags & F_BREADY) { 2282 spipe = t->spipe[B]; 2283 if (spipe == NULL) { 2284 t->flags &= ~F_BREADY; 2285 t->len[B] = -1; 2286 } else if (remaining_bustime >= spipe->bustime) { 2287 t->flags &= ~(F_BREADY|F_SOFCHECK1|F_SOFCHECK2); 2288 t->flags |= F_BINPROG; 2289 start_cc_time(&t_ab[B], spipe->tregs[LEN]); 2290 slhci_write(sc, SL11_E1CTRL, spipe->control); 2291 pend: 2292 t->pend = spipe->bustime; 2293 } 2294 } 2295 } 2296 2297 static void 2298 slhci_dotransfer(struct slhci_softc *sc) 2299 { 2300 struct slhci_transfers *t; 2301 struct slhci_pipe *spipe; 2302 int ab, i; 2303 2304 t = &sc->sc_transfers; 2305 2306 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2307 2308 while ((t->len[A] == -1 || t->len[B] == -1) && 2309 (GOT_FIRST_TIMED_COND(spipe, t, spipe->frame <= t->frame) || 2310 GOT_FIRST_CB(spipe, t))) { 2311 LK_SLASSERT(spipe->xfer != NULL, sc, spipe, NULL, return); 2312 LK_SLASSERT(spipe->ptype != PT_ROOT_CTRL && spipe->ptype != 2313 PT_ROOT_INTR, sc, spipe, NULL, return); 2314 2315 /* Check that this transfer can fit in the remaining memory. */ 2316 if (t->len[A] + t->len[B] + spipe->tregs[LEN] + 1 > 2317 SL11_MAX_PACKET_SIZE) { 2318 DLOG(D_XFER, "Transfer does not fit. alen %d blen %d " 2319 "len %d", t->len[A], t->len[B], spipe->tregs[LEN], 2320 0); 2321 return; 2322 } 2323 2324 gcq_remove(&spipe->xq); 2325 2326 if (t->len[A] == -1) { 2327 ab = A; 2328 spipe->tregs[ADR] = SL11_BUFFER_START; 2329 } else { 2330 ab = B; 2331 spipe->tregs[ADR] = SL11_BUFFER_END - 2332 spipe->tregs[LEN]; 2333 } 2334 2335 t->len[ab] = spipe->tregs[LEN]; 2336 2337 if (spipe->tregs[LEN] && (spipe->tregs[PID] & SL11_PID_BITS) 2338 != SL11_PID_IN) { 2339 start_cc_time(&t_copy_to_dev, 2340 spipe->tregs[LEN]); 2341 slhci_write_multi(sc, spipe->tregs[ADR], 2342 spipe->buffer, spipe->tregs[LEN]); 2343 stop_cc_time(&t_copy_to_dev); 2344 t->pend -= SLHCI_FS_CONST + 2345 SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); 2346 } 2347 2348 DLOG(D_MSG, "NEW TRANSFER %s flags %#x alen %d blen %d", 2349 ab ? "B" : "A", t->flags, t->len[0], t->len[1]); 2350 2351 if (spipe->tregs[LEN]) 2352 i = 0; 2353 else 2354 i = 1; 2355 2356 for (; i <= 3; i++) 2357 if (t->current_tregs[ab][i] != spipe->tregs[i]) { 2358 t->current_tregs[ab][i] = spipe->tregs[i]; 2359 slhci_write(sc, slhci_tregs[ab][i], 2360 spipe->tregs[i]); 2361 } 2362 2363 DLOG(D_SXFER, "Transfer len %d pid %#x dev %d type %s", 2364 spipe->tregs[LEN], spipe->tregs[PID], spipe->tregs[DEV], 2365 pnames(spipe->ptype)); 2366 2367 t->spipe[ab] = spipe; 2368 t->flags |= ab ? F_BREADY : F_AREADY; 2369 2370 slhci_tstart(sc); 2371 } 2372 } 2373 2374 /* 2375 * slhci_callback is called after the lock is taken from splusb. 2376 */ 2377 static void 2378 slhci_callback(struct slhci_softc *sc) 2379 { 2380 struct slhci_transfers *t; 2381 struct slhci_pipe *spipe; 2382 struct usbd_xfer *xfer; 2383 2384 t = &sc->sc_transfers; 2385 2386 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2387 2388 DLOG(D_SOFT, "CB flags %#x", t->flags, 0,0,0); 2389 for (;;) { 2390 if (__predict_false(t->flags & F_ROOTINTR)) { 2391 t->flags &= ~F_ROOTINTR; 2392 if (t->rootintr != NULL) { 2393 u_char *p; 2394 2395 p = KERNADDR(&t->rootintr->dmabuf, 0); 2396 p[0] = 2; 2397 t->rootintr->actlen = 1; 2398 t->rootintr->status = USBD_NORMAL_COMPLETION; 2399 xfer = t->rootintr; 2400 goto do_callback; 2401 } 2402 } 2403 2404 2405 if (!DEQUEUED_CALLBACK(spipe, t)) 2406 return; 2407 2408 xfer = spipe->xfer; 2409 LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); 2410 spipe->xfer = NULL; 2411 DLOG(D_XFER, "xfer callback length %d actlen %d spipe %x " 2412 "type %s", xfer->length, xfer->actlen, spipe, 2413 pnames(spipe->ptype)); 2414 do_callback: 2415 slhci_do_callback(sc, xfer); 2416 } 2417 } 2418 2419 static void 2420 slhci_enter_xfer(struct slhci_softc *sc, struct slhci_pipe *spipe) 2421 { 2422 struct slhci_transfers *t; 2423 2424 t = &sc->sc_transfers; 2425 2426 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2427 2428 if (__predict_false(t->flags & F_DISABLED) || 2429 __predict_false(spipe->pflags & PF_GONE)) { 2430 DLOG(D_MSG, "slhci_enter_xfer: DISABLED or GONE", 0,0,0,0); 2431 spipe->xfer->status = USBD_CANCELLED; 2432 } 2433 2434 if (spipe->xfer->status == USBD_IN_PROGRESS) { 2435 if (spipe->xfer->timeout) { 2436 spipe->to_frame = t->frame + spipe->xfer->timeout; 2437 slhci_xfer_timer(sc, spipe); 2438 } 2439 if (spipe->pipe.interval) 2440 slhci_queue_timed(sc, spipe); 2441 else 2442 enter_q(t, spipe, Q_CB); 2443 } else 2444 enter_callback(t, spipe); 2445 } 2446 2447 static void 2448 slhci_enter_xfers(struct slhci_softc *sc) 2449 { 2450 struct slhci_pipe *spipe; 2451 2452 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2453 2454 while (DEQUEUED_WAITQ(spipe, sc)) 2455 slhci_enter_xfer(sc, spipe); 2456 } 2457 2458 static void 2459 slhci_queue_timed(struct slhci_softc *sc, struct slhci_pipe *spipe) 2460 { 2461 struct slhci_transfers *t; 2462 struct gcq *q; 2463 struct slhci_pipe *spp; 2464 2465 t = &sc->sc_transfers; 2466 2467 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2468 2469 FIND_TIMED(q, t, spp, spp->frame > spipe->frame); 2470 gcq_insert_before(q, &spipe->xq); 2471 } 2472 2473 static void 2474 slhci_xfer_timer(struct slhci_softc *sc, struct slhci_pipe *spipe) 2475 { 2476 struct slhci_transfers *t; 2477 struct gcq *q; 2478 struct slhci_pipe *spp; 2479 2480 t = &sc->sc_transfers; 2481 2482 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2483 2484 FIND_TO(q, t, spp, spp->to_frame >= spipe->to_frame); 2485 gcq_insert_before(q, &spipe->to); 2486 } 2487 2488 static void 2489 slhci_do_repeat(struct slhci_softc *sc, struct usbd_xfer *xfer) 2490 { 2491 struct slhci_transfers *t; 2492 struct slhci_pipe *spipe; 2493 2494 t = &sc->sc_transfers; 2495 spipe = (struct slhci_pipe *)xfer->pipe; 2496 2497 if (xfer == t->rootintr) 2498 return; 2499 2500 DLOG(D_TRACE, "REPEAT: xfer %p actlen %d frame %u now %u", 2501 xfer, xfer->actlen, spipe->frame, sc->sc_transfers.frame); 2502 2503 xfer->actlen = 0; 2504 spipe->xfer = xfer; 2505 if (spipe->tregs[LEN]) 2506 KASSERT(spipe->buffer == KERNADDR(&xfer->dmabuf, 0)); 2507 slhci_queue_timed(sc, spipe); 2508 slhci_dotransfer(sc); 2509 } 2510 2511 static void 2512 slhci_callback_schedule(struct slhci_softc *sc) 2513 { 2514 struct slhci_transfers *t; 2515 2516 t = &sc->sc_transfers; 2517 2518 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2519 2520 if (t->flags & F_ACTIVE) 2521 slhci_do_callback_schedule(sc); 2522 } 2523 2524 static void 2525 slhci_do_callback_schedule(struct slhci_softc *sc) 2526 { 2527 struct slhci_transfers *t; 2528 2529 t = &sc->sc_transfers; 2530 2531 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2532 2533 if (!(t->flags & F_CALLBACK)) { 2534 t->flags |= F_CALLBACK; 2535 softint_schedule(sc->sc_cb_softintr); 2536 } 2537 } 2538 2539 #if 0 2540 /* must be called with lock taken from IPL_USB */ 2541 /* XXX static */ void 2542 slhci_pollxfer(struct slhci_softc *sc, struct usbd_xfer *xfer) 2543 { 2544 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2545 slhci_dotransfer(sc); 2546 do { 2547 slhci_dointr(sc); 2548 } while (xfer->status == USBD_IN_PROGRESS); 2549 slhci_do_callback(sc, xfer); 2550 } 2551 #endif 2552 2553 static usbd_status 2554 slhci_do_poll(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2555 usbd_xfer *xfer) 2556 { 2557 slhci_waitintr(sc, 0); 2558 2559 return USBD_NORMAL_COMPLETION; 2560 } 2561 2562 static usbd_status 2563 slhci_lsvh_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2564 usbd_xfer *xfer) 2565 { 2566 struct slhci_transfers *t; 2567 2568 t = &sc->sc_transfers; 2569 2570 if (!(t->flags & F_LSVH_WARNED)) { 2571 printf("%s: Low speed device via hub disabled, " 2572 "see slhci(4)\n", SC_NAME(sc)); 2573 DDOLOG("%s: Low speed device via hub disabled, " 2574 "see slhci(4)\n", SC_NAME(sc), 0,0,0); 2575 t->flags |= F_LSVH_WARNED; 2576 } 2577 return USBD_INVAL; 2578 } 2579 2580 static usbd_status 2581 slhci_isoc_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2582 usbd_xfer *xfer) 2583 { 2584 struct slhci_transfers *t; 2585 2586 t = &sc->sc_transfers; 2587 2588 if (!(t->flags & F_ISOC_WARNED)) { 2589 printf("%s: ISOC transfer not supported " 2590 "(see slhci(4))\n", SC_NAME(sc)); 2591 DDOLOG("%s: ISOC transfer not supported " 2592 "(see slhci(4))\n", SC_NAME(sc), 0,0,0); 2593 t->flags |= F_ISOC_WARNED; 2594 } 2595 return USBD_INVAL; 2596 } 2597 2598 static usbd_status 2599 slhci_open_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2600 usbd_xfer *xfer) 2601 { 2602 struct slhci_transfers *t; 2603 struct usbd_pipe *pipe; 2604 2605 t = &sc->sc_transfers; 2606 pipe = &spipe->pipe; 2607 2608 if (t->flags & F_DISABLED) 2609 return USBD_CANCELLED; 2610 else if (pipe->interval && !slhci_reserve_bustime(sc, spipe, 1)) 2611 return USBD_PENDING_REQUESTS; 2612 else { 2613 enter_all_pipes(t, spipe); 2614 return USBD_NORMAL_COMPLETION; 2615 } 2616 } 2617 2618 static usbd_status 2619 slhci_close_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2620 usbd_xfer *xfer) 2621 { 2622 struct usbd_pipe *pipe; 2623 2624 pipe = &spipe->pipe; 2625 2626 if (pipe->interval && spipe->ptype != PT_ROOT_INTR) 2627 slhci_reserve_bustime(sc, spipe, 0); 2628 gcq_remove(&spipe->ap); 2629 return USBD_NORMAL_COMPLETION; 2630 } 2631 2632 static usbd_status 2633 slhci_do_abort(struct slhci_softc *sc, struct slhci_pipe *spipe, struct 2634 usbd_xfer *xfer) 2635 { 2636 struct slhci_transfers *t; 2637 2638 t = &sc->sc_transfers; 2639 2640 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2641 2642 if (spipe->xfer == xfer) { 2643 if (spipe->ptype == PT_ROOT_INTR) { 2644 if (t->rootintr == spipe->xfer) /* XXX assert? */ 2645 t->rootintr = NULL; 2646 } else { 2647 gcq_remove(&spipe->to); 2648 gcq_remove(&spipe->xq); 2649 2650 if (t->spipe[A] == spipe) { 2651 t->spipe[A] = NULL; 2652 if (!(t->flags & F_AINPROG)) 2653 t->len[A] = -1; 2654 } else if (t->spipe[B] == spipe) { 2655 t->spipe[B] = NULL; 2656 if (!(t->flags & F_BINPROG)) 2657 t->len[B] = -1; 2658 } 2659 } 2660 2661 if (xfer->status != USBD_TIMEOUT) { 2662 spipe->xfer = NULL; 2663 spipe->pipe.repeat = 0; /* XXX timeout? */ 2664 } 2665 } 2666 2667 return USBD_NORMAL_COMPLETION; 2668 } 2669 2670 /* 2671 * Called to deactivate or stop use of the controller instead of panicking. 2672 * Will cancel the xfer correctly even when not on a list. 2673 */ 2674 static usbd_status 2675 slhci_halt(struct slhci_softc *sc, struct slhci_pipe *spipe, struct usbd_xfer 2676 *xfer) 2677 { 2678 struct slhci_transfers *t; 2679 2680 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2681 2682 t = &sc->sc_transfers; 2683 2684 DDOLOG("Halt! sc %p spipe %p xfer %p", sc, spipe, xfer, 0); 2685 2686 if (spipe != NULL) 2687 slhci_log_spipe(spipe); 2688 2689 if (xfer != NULL) 2690 slhci_log_xfer(xfer); 2691 2692 if (spipe != NULL && xfer != NULL && spipe->xfer == xfer && 2693 !gcq_onlist(&spipe->xq) && t->spipe[A] != spipe && t->spipe[B] != 2694 spipe) { 2695 xfer->status = USBD_CANCELLED; 2696 enter_callback(t, spipe); 2697 } 2698 2699 if (t->flags & F_ACTIVE) { 2700 slhci_intrchange(sc, 0); 2701 /* 2702 * leave power on when halting in case flash devices or disks 2703 * are attached, which may be writing and could be damaged 2704 * by abrupt power loss. The root hub clear power feature 2705 * should still work after halting. 2706 */ 2707 } 2708 2709 t->flags &= ~F_ACTIVE; 2710 t->flags |= F_UDISABLED; 2711 if (!(t->flags & F_NODEV)) 2712 t->flags |= F_NODEV|F_CCONNECT|F_ROOTINTR; 2713 slhci_drain(sc); 2714 2715 /* One last callback for the drain and device removal. */ 2716 slhci_do_callback_schedule(sc); 2717 2718 return USBD_NORMAL_COMPLETION; 2719 } 2720 2721 /* 2722 * There are three interrupt states: no interrupts during reset and after 2723 * device deactivation, INSERT only for no device present but power on, and 2724 * SOF, INSERT, ADONE, and BDONE when device is present. 2725 */ 2726 static void 2727 slhci_intrchange(struct slhci_softc *sc, uint8_t new_ier) 2728 { 2729 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2730 if (sc->sc_ier != new_ier) { 2731 sc->sc_ier = new_ier; 2732 slhci_write(sc, SL11_IER, new_ier); 2733 BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); 2734 } 2735 } 2736 2737 /* 2738 * Drain: cancel all pending transfers and put them on the callback list and 2739 * set the UDISABLED flag. UDISABLED is cleared only by reset. 2740 */ 2741 static void 2742 slhci_drain(struct slhci_softc *sc) 2743 { 2744 struct slhci_transfers *t; 2745 struct slhci_pipe *spipe; 2746 struct gcq *q; 2747 int i; 2748 2749 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2750 2751 t = &sc->sc_transfers; 2752 2753 DLOG(D_MSG, "DRAIN flags %#x", t->flags, 0,0,0); 2754 2755 t->pend = INT_MAX; 2756 2757 for (i=0; i<=1; i++) { 2758 t->len[i] = -1; 2759 if (t->spipe[i] != NULL) { 2760 enter_callback(t, t->spipe[i]); 2761 t->spipe[i] = NULL; 2762 } 2763 } 2764 2765 /* Merge the queues into the callback queue. */ 2766 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_CB]); 2767 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_NEXT_CB]); 2768 gcq_merge_tail(&t->q[Q_CALLBACKS], &t->timed); 2769 2770 /* 2771 * Cancel all pipes. Note that not all of these may be on the 2772 * callback queue yet; some could be in slhci_start, for example. 2773 */ 2774 FOREACH_AP(q, t, spipe) { 2775 spipe->pflags |= PF_GONE; 2776 spipe->pipe.repeat = 0; 2777 spipe->pipe.aborting = 1; 2778 if (spipe->xfer != NULL) 2779 spipe->xfer->status = USBD_CANCELLED; 2780 } 2781 2782 gcq_remove_all(&t->to); 2783 2784 t->flags |= F_UDISABLED; 2785 t->flags &= ~(F_AREADY|F_BREADY|F_AINPROG|F_BINPROG|F_LOWSPEED); 2786 } 2787 2788 /* 2789 * RESET: SL11_CTRL_RESETENGINE=1 and SL11_CTRL_JKSTATE=0 for 50ms 2790 * reconfigure SOF after reset, must wait 2.5us before USB bus activity (SOF) 2791 * check attached device speed. 2792 * must wait 100ms before USB transaction according to app note, 10ms 2793 * by spec. uhub does this delay 2794 * 2795 * Started from root hub set feature reset, which does step one. 2796 * use_polling will call slhci_reset directly, otherwise the callout goes 2797 * through slhci_reset_entry. 2798 */ 2799 void 2800 slhci_reset(struct slhci_softc *sc) 2801 { 2802 struct slhci_transfers *t; 2803 struct slhci_pipe *spipe; 2804 struct gcq *q; 2805 uint8_t r, pol, ctrl; 2806 2807 t = &sc->sc_transfers; 2808 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2809 2810 stop_cc_time(&t_delay); 2811 2812 KASSERT(t->flags & F_ACTIVE); 2813 2814 start_cc_time(&t_delay, 0); 2815 stop_cc_time(&t_delay); 2816 2817 slhci_write(sc, SL11_CTRL, 0); 2818 start_cc_time(&t_delay, 3); 2819 DELAY(3); 2820 stop_cc_time(&t_delay); 2821 slhci_write(sc, SL11_ISR, 0xff); 2822 2823 r = slhci_read(sc, SL11_ISR); 2824 2825 if (r & SL11_ISR_INSERT) 2826 slhci_write(sc, SL11_ISR, SL11_ISR_INSERT); 2827 2828 if (r & SL11_ISR_NODEV) { 2829 DLOG(D_MSG, "NC", 0,0,0,0); 2830 /* 2831 * Normally, the hard interrupt insert routine will issue 2832 * CCONNECT, however we need to do it here if the detach 2833 * happened during reset. 2834 */ 2835 if (!(t->flags & F_NODEV)) 2836 t->flags |= F_CCONNECT|F_ROOTINTR|F_NODEV; 2837 slhci_intrchange(sc, SL11_IER_INSERT); 2838 } else { 2839 if (t->flags & F_NODEV) 2840 t->flags |= F_CCONNECT; 2841 t->flags &= ~(F_NODEV|F_LOWSPEED); 2842 if (r & SL11_ISR_DATA) { 2843 DLOG(D_MSG, "FS", 0,0,0,0); 2844 pol = ctrl = 0; 2845 } else { 2846 DLOG(D_MSG, "LS", 0,0,0,0); 2847 pol = SL811_CSOF_POLARITY; 2848 ctrl = SL11_CTRL_LOWSPEED; 2849 t->flags |= F_LOWSPEED; 2850 } 2851 2852 /* Enable SOF auto-generation */ 2853 t->frame = 0; /* write to SL811_CSOF will reset frame */ 2854 slhci_write(sc, SL11_SOFTIME, 0xe0); 2855 slhci_write(sc, SL811_CSOF, pol|SL811_CSOF_MASTER|0x2e); 2856 slhci_write(sc, SL11_CTRL, ctrl|SL11_CTRL_ENABLESOF); 2857 2858 /* 2859 * According to the app note, ARM must be set 2860 * for SOF generation to work. We initialize all 2861 * USBA registers here for current_tregs. 2862 */ 2863 slhci_write(sc, SL11_E0ADDR, SL11_BUFFER_START); 2864 slhci_write(sc, SL11_E0LEN, 0); 2865 slhci_write(sc, SL11_E0PID, SL11_PID_SOF); 2866 slhci_write(sc, SL11_E0DEV, 0); 2867 slhci_write(sc, SL11_E0CTRL, SL11_EPCTRL_ARM); 2868 2869 /* 2870 * Initialize B registers. This can't be done earlier since 2871 * they are not valid until the SL811_CSOF register is written 2872 * above due to SL11H compatability. 2873 */ 2874 slhci_write(sc, SL11_E1ADDR, SL11_BUFFER_END - 8); 2875 slhci_write(sc, SL11_E1LEN, 0); 2876 slhci_write(sc, SL11_E1PID, 0); 2877 slhci_write(sc, SL11_E1DEV, 0); 2878 2879 t->current_tregs[0][ADR] = SL11_BUFFER_START; 2880 t->current_tregs[0][LEN] = 0; 2881 t->current_tregs[0][PID] = SL11_PID_SOF; 2882 t->current_tregs[0][DEV] = 0; 2883 t->current_tregs[1][ADR] = SL11_BUFFER_END - 8; 2884 t->current_tregs[1][LEN] = 0; 2885 t->current_tregs[1][PID] = 0; 2886 t->current_tregs[1][DEV] = 0; 2887 2888 /* SOF start will produce USBA interrupt */ 2889 t->len[A] = 0; 2890 t->flags |= F_AINPROG; 2891 2892 slhci_intrchange(sc, SLHCI_NORMAL_INTERRUPTS); 2893 } 2894 2895 t->flags &= ~(F_UDISABLED|F_RESET); 2896 t->flags |= F_CRESET|F_ROOTINTR; 2897 FOREACH_AP(q, t, spipe) { 2898 spipe->pflags &= ~PF_GONE; 2899 spipe->pipe.aborting = 0; 2900 } 2901 DLOG(D_MSG, "RESET done flags %#x", t->flags, 0,0,0); 2902 } 2903 2904 /* returns 1 if succeeded, 0 if failed, reserve == 0 is unreserve */ 2905 static int 2906 slhci_reserve_bustime(struct slhci_softc *sc, struct slhci_pipe *spipe, int 2907 reserve) 2908 { 2909 struct slhci_transfers *t; 2910 int bustime, max_packet; 2911 2912 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2913 2914 t = &sc->sc_transfers; 2915 max_packet = UGETW(spipe->pipe.endpoint->edesc->wMaxPacketSize); 2916 2917 if (spipe->pflags & PF_LS) 2918 bustime = SLHCI_LS_CONST + SLHCI_LS_DATA_TIME(max_packet); 2919 else 2920 bustime = SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(max_packet); 2921 2922 if (!reserve) { 2923 t->reserved_bustime -= bustime; 2924 #ifdef DIAGNOSTIC 2925 if (t->reserved_bustime < 0) { 2926 printf("%s: reserved_bustime %d < 0!\n", 2927 SC_NAME(sc), t->reserved_bustime); 2928 DDOLOG("%s: reserved_bustime %d < 0!\n", 2929 SC_NAME(sc), t->reserved_bustime, 0,0); 2930 t->reserved_bustime = 0; 2931 } 2932 #endif 2933 return 1; 2934 } 2935 2936 if (t->reserved_bustime + bustime > SLHCI_RESERVED_BUSTIME) { 2937 if (ratecheck(&sc->sc_reserved_warn_rate, 2938 &reserved_warn_rate)) 2939 #ifdef SLHCI_NO_OVERTIME 2940 { 2941 printf("%s: Max reserved bus time exceeded! " 2942 "Erroring request.\n", SC_NAME(sc)); 2943 DDOLOG("%s: Max reserved bus time exceeded! " 2944 "Erroring request.\n", SC_NAME(sc), 0,0,0); 2945 } 2946 return 0; 2947 #else 2948 { 2949 printf("%s: Reserved bus time exceeds %d!\n", 2950 SC_NAME(sc), SLHCI_RESERVED_BUSTIME); 2951 DDOLOG("%s: Reserved bus time exceeds %d!\n", 2952 SC_NAME(sc), SLHCI_RESERVED_BUSTIME, 0,0); 2953 } 2954 #endif 2955 } 2956 2957 t->reserved_bustime += bustime; 2958 return 1; 2959 } 2960 2961 /* Device insertion/removal interrupt */ 2962 static void 2963 slhci_insert(struct slhci_softc *sc) 2964 { 2965 struct slhci_transfers *t; 2966 2967 t = &sc->sc_transfers; 2968 2969 KASSERT(mutex_owned(&sc->sc_intr_lock)); 2970 2971 if (t->flags & F_NODEV) 2972 slhci_intrchange(sc, 0); 2973 else { 2974 slhci_drain(sc); 2975 slhci_intrchange(sc, SL11_IER_INSERT); 2976 } 2977 t->flags ^= F_NODEV; 2978 t->flags |= F_ROOTINTR|F_CCONNECT; 2979 DLOG(D_MSG, "INSERT intr: flags after %#x", t->flags, 0,0,0); 2980 } 2981 2982 /* 2983 * Data structures and routines to emulate the root hub. 2984 */ 2985 static const usb_device_descriptor_t slhci_devd = { 2986 USB_DEVICE_DESCRIPTOR_SIZE, 2987 UDESC_DEVICE, /* type */ 2988 {0x01, 0x01}, /* USB version */ 2989 UDCLASS_HUB, /* class */ 2990 UDSUBCLASS_HUB, /* subclass */ 2991 0, /* protocol */ 2992 64, /* max packet */ 2993 {USB_VENDOR_SCANLOGIC & 0xff, /* vendor ID (low) */ 2994 USB_VENDOR_SCANLOGIC >> 8 }, /* vendor ID (high) */ 2995 {0} /* ? */, /* product ID */ 2996 {0}, /* device */ 2997 1, /* index to manufacturer */ 2998 2, /* index to product */ 2999 0, /* index to serial number */ 3000 1 /* number of configurations */ 3001 }; 3002 3003 static const struct slhci_confd_t { 3004 const usb_config_descriptor_t confd; 3005 const usb_interface_descriptor_t ifcd; 3006 const usb_endpoint_descriptor_t endpd; 3007 } UPACKED slhci_confd = { 3008 { /* Configuration */ 3009 USB_CONFIG_DESCRIPTOR_SIZE, 3010 UDESC_CONFIG, 3011 {USB_CONFIG_DESCRIPTOR_SIZE + 3012 USB_INTERFACE_DESCRIPTOR_SIZE + 3013 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3014 1, /* number of interfaces */ 3015 1, /* configuration value */ 3016 0, /* index to configuration */ 3017 UC_SELF_POWERED, /* attributes */ 3018 0 /* max current, filled in later */ 3019 }, { /* Interface */ 3020 USB_INTERFACE_DESCRIPTOR_SIZE, 3021 UDESC_INTERFACE, 3022 0, /* interface number */ 3023 0, /* alternate setting */ 3024 1, /* number of endpoint */ 3025 UICLASS_HUB, /* class */ 3026 UISUBCLASS_HUB, /* subclass */ 3027 0, /* protocol */ 3028 0 /* index to interface */ 3029 }, { /* Endpoint */ 3030 USB_ENDPOINT_DESCRIPTOR_SIZE, 3031 UDESC_ENDPOINT, 3032 UE_DIR_IN | ROOT_INTR_ENDPT, /* endpoint address */ 3033 UE_INTERRUPT, /* attributes */ 3034 {240, 0}, /* max packet size */ 3035 255 /* interval */ 3036 } 3037 }; 3038 3039 static const usb_hub_descriptor_t slhci_hubd = { 3040 USB_HUB_DESCRIPTOR_SIZE, 3041 UDESC_HUB, 3042 1, /* number of ports */ 3043 {UHD_PWR_INDIVIDUAL | UHD_OC_NONE, 0}, /* hub characteristics */ 3044 50, /* 5:power on to power good, units of 2ms */ 3045 0, /* 6:maximum current, filled in later */ 3046 { 0x00 }, /* port is removable */ 3047 { 0x00 } /* port power control mask */ 3048 }; 3049 3050 static usbd_status 3051 slhci_clear_feature(struct slhci_softc *sc, unsigned int what) 3052 { 3053 struct slhci_transfers *t; 3054 usbd_status error; 3055 3056 t = &sc->sc_transfers; 3057 error = USBD_NORMAL_COMPLETION; 3058 3059 KASSERT(mutex_owned(&sc->sc_intr_lock)); 3060 3061 if (what == UHF_PORT_POWER) { 3062 DLOG(D_MSG, "POWER_OFF", 0,0,0,0); 3063 t->flags &= ~F_POWER; 3064 if (!(t->flags & F_NODEV)) 3065 t->flags |= F_NODEV|F_CCONNECT|F_ROOTINTR; 3066 /* for x68k Nereid USB controller */ 3067 if (sc->sc_enable_power && (t->flags & F_REALPOWER)) { 3068 t->flags &= ~F_REALPOWER; 3069 sc->sc_enable_power(sc, POWER_OFF); 3070 } 3071 slhci_intrchange(sc, 0); 3072 slhci_drain(sc); 3073 } else if (what == UHF_C_PORT_CONNECTION) { 3074 t->flags &= ~F_CCONNECT; 3075 } else if (what == UHF_C_PORT_RESET) { 3076 t->flags &= ~F_CRESET; 3077 } else if (what == UHF_PORT_ENABLE) { 3078 slhci_drain(sc); 3079 } else if (what != UHF_PORT_SUSPEND) { 3080 DDOLOG("ClrPortFeatERR:value=%#.4x", what, 0,0,0); 3081 error = USBD_IOERROR; 3082 } 3083 3084 return error; 3085 } 3086 3087 static usbd_status 3088 slhci_set_feature(struct slhci_softc *sc, unsigned int what) 3089 { 3090 struct slhci_transfers *t; 3091 uint8_t r; 3092 3093 t = &sc->sc_transfers; 3094 3095 KASSERT(mutex_owned(&sc->sc_intr_lock)); 3096 3097 if (what == UHF_PORT_RESET) { 3098 if (!(t->flags & F_ACTIVE)) { 3099 DDOLOG("SET PORT_RESET when not ACTIVE!", 3100 0,0,0,0); 3101 return USBD_INVAL; 3102 } 3103 if (!(t->flags & F_POWER)) { 3104 DDOLOG("SET PORT_RESET without PORT_POWER! flags %p", 3105 t->flags, 0,0,0); 3106 return USBD_INVAL; 3107 } 3108 if (t->flags & F_RESET) 3109 return USBD_NORMAL_COMPLETION; 3110 DLOG(D_MSG, "RESET flags %#x", t->flags, 0,0,0); 3111 slhci_intrchange(sc, 0); 3112 slhci_drain(sc); 3113 slhci_write(sc, SL11_CTRL, SL11_CTRL_RESETENGINE); 3114 /* usb spec says delay >= 10ms, app note 50ms */ 3115 start_cc_time(&t_delay, 50000); 3116 if (sc->sc_bus.use_polling) { 3117 DELAY(50000); 3118 slhci_reset(sc); 3119 } else { 3120 t->flags |= F_RESET; 3121 callout_schedule(&sc->sc_timer, max(mstohz(50), 2)); 3122 } 3123 } else if (what == UHF_PORT_SUSPEND) { 3124 printf("%s: USB Suspend not implemented!\n", SC_NAME(sc)); 3125 DDOLOG("%s: USB Suspend not implemented!\n", SC_NAME(sc), 3126 0,0,0); 3127 } else if (what == UHF_PORT_POWER) { 3128 DLOG(D_MSG, "PORT_POWER", 0,0,0,0); 3129 /* for x68k Nereid USB controller */ 3130 if (!(t->flags & F_ACTIVE)) 3131 return USBD_INVAL; 3132 if (t->flags & F_POWER) 3133 return USBD_NORMAL_COMPLETION; 3134 if (!(t->flags & F_REALPOWER)) { 3135 if (sc->sc_enable_power) 3136 sc->sc_enable_power(sc, POWER_ON); 3137 t->flags |= F_REALPOWER; 3138 } 3139 t->flags |= F_POWER; 3140 r = slhci_read(sc, SL11_ISR); 3141 if (r & SL11_ISR_INSERT) 3142 slhci_write(sc, SL11_ISR, SL11_ISR_INSERT); 3143 if (r & SL11_ISR_NODEV) { 3144 slhci_intrchange(sc, SL11_IER_INSERT); 3145 t->flags |= F_NODEV; 3146 } else { 3147 t->flags &= ~F_NODEV; 3148 t->flags |= F_CCONNECT|F_ROOTINTR; 3149 } 3150 } else { 3151 DDOLOG("SetPortFeatERR=%#.8x", what, 0,0,0); 3152 return USBD_IOERROR; 3153 } 3154 3155 return USBD_NORMAL_COMPLETION; 3156 } 3157 3158 static void 3159 slhci_get_status(struct slhci_softc *sc, usb_port_status_t *ps) 3160 { 3161 struct slhci_transfers *t; 3162 unsigned int status, change; 3163 3164 t = &sc->sc_transfers; 3165 3166 KASSERT(mutex_owned(&sc->sc_intr_lock)); 3167 3168 /* 3169 * We do not have a way to detect over current or bable and 3170 * suspend is currently not implemented, so connect and reset 3171 * are the only changes that need to be reported. 3172 */ 3173 change = 0; 3174 if (t->flags & F_CCONNECT) 3175 change |= UPS_C_CONNECT_STATUS; 3176 if (t->flags & F_CRESET) 3177 change |= UPS_C_PORT_RESET; 3178 3179 status = 0; 3180 if (!(t->flags & F_NODEV)) 3181 status |= UPS_CURRENT_CONNECT_STATUS; 3182 if (!(t->flags & F_UDISABLED)) 3183 status |= UPS_PORT_ENABLED; 3184 if (t->flags & F_RESET) 3185 status |= UPS_RESET; 3186 if (t->flags & F_POWER) 3187 status |= UPS_PORT_POWER; 3188 if (t->flags & F_LOWSPEED) 3189 status |= UPS_LOW_SPEED; 3190 USETW(ps->wPortStatus, status); 3191 USETW(ps->wPortChange, change); 3192 DLOG(D_ROOT, "status=%#.4x, change=%#.4x", status, change, 0,0); 3193 } 3194 3195 static usbd_status 3196 slhci_root(struct slhci_softc *sc, struct slhci_pipe *spipe, struct usbd_xfer 3197 *xfer) 3198 { 3199 struct slhci_transfers *t; 3200 usb_device_request_t *req; 3201 unsigned int len, value, index, actlen, type; 3202 uint8_t *buf; 3203 usbd_status error; 3204 3205 t = &sc->sc_transfers; 3206 buf = NULL; 3207 3208 LK_SLASSERT(spipe != NULL && xfer != NULL, sc, spipe, xfer, return 3209 USBD_CANCELLED); 3210 3211 DLOG(D_TRACE, "%s start", pnames(SLHCI_XFER_TYPE(xfer)), 0,0,0); 3212 KASSERT(mutex_owned(&sc->sc_intr_lock)); 3213 3214 if (spipe->ptype == PT_ROOT_INTR) { 3215 LK_SLASSERT(t->rootintr == NULL, sc, spipe, xfer, return 3216 USBD_CANCELLED); 3217 t->rootintr = xfer; 3218 if (t->flags & F_CHANGE) 3219 t->flags |= F_ROOTINTR; 3220 return USBD_IN_PROGRESS; 3221 } 3222 3223 error = USBD_IOERROR; /* XXX should be STALL */ 3224 actlen = 0; 3225 req = &xfer->request; 3226 3227 len = UGETW(req->wLength); 3228 value = UGETW(req->wValue); 3229 index = UGETW(req->wIndex); 3230 3231 type = req->bmRequestType; 3232 3233 if (len) 3234 buf = KERNADDR(&xfer->dmabuf, 0); 3235 3236 SLHCI_DEXEC(D_TRACE, slhci_log_req_hub(req)); 3237 3238 /* 3239 * USB requests for hubs have two basic types, standard and class. 3240 * Each could potentially have recipients of device, interface, 3241 * endpoint, or other. For the hub class, CLASS_OTHER means the port 3242 * and CLASS_DEVICE means the hub. For standard requests, OTHER 3243 * is not used. Standard request are described in section 9.4 of the 3244 * standard, hub class requests in 11.16. Each request is either read 3245 * or write. 3246 * 3247 * Clear Feature, Set Feature, and Status are defined for each of the 3248 * used recipients. Get Descriptor and Set Descriptor are defined for 3249 * both standard and hub class types with different descriptors. 3250 * Other requests have only one defined recipient and type. These 3251 * include: Get/Set Address, Get/Set Configuration, Get/Set Interface, 3252 * and Synch Frame for standard requests and Get Bus State for hub 3253 * class. 3254 * 3255 * When a device is first powered up it has address 0 until the 3256 * address is set. 3257 * 3258 * Hubs are only allowed to support one interface and may not have 3259 * isochronous endpoints. The results of the related requests are 3260 * undefined. 3261 * 3262 * The standard requires invalid or unsupported requests to return 3263 * STALL in the data stage, however this does not work well with 3264 * current error handling. XXX 3265 * 3266 * Some unsupported fields: 3267 * Clear Hub Feature is for C_HUB_LOCAL_POWER and C_HUB_OVER_CURRENT 3268 * Set Device Features is for ENDPOINT_HALT and DEVICE_REMOTE_WAKEUP 3269 * Get Bus State is optional sample of D- and D+ at EOF2 3270 */ 3271 3272 switch (req->bRequest) { 3273 /* Write Requests */ 3274 case UR_CLEAR_FEATURE: 3275 if (type == UT_WRITE_CLASS_OTHER) { 3276 if (index == 1 /* Port */) 3277 error = slhci_clear_feature(sc, value); 3278 else 3279 DLOG(D_ROOT, "Clear Port Feature " 3280 "index = %#.4x", index, 0,0,0); 3281 } 3282 break; 3283 case UR_SET_FEATURE: 3284 if (type == UT_WRITE_CLASS_OTHER) { 3285 if (index == 1 /* Port */) 3286 error = slhci_set_feature(sc, value); 3287 else 3288 DLOG(D_ROOT, "Set Port Feature " 3289 "index = %#.4x", index, 0,0,0); 3290 } else if (type != UT_WRITE_CLASS_DEVICE) 3291 DLOG(D_ROOT, "Set Device Feature " 3292 "ENDPOINT_HALT or DEVICE_REMOTE_WAKEUP " 3293 "not supported", 0,0,0,0); 3294 break; 3295 case UR_SET_ADDRESS: 3296 if (type == UT_WRITE_DEVICE) { 3297 DLOG(D_ROOT, "Set Address %#.4x", value, 0,0,0); 3298 if (value < USB_MAX_DEVICES) { 3299 t->rootaddr = value; 3300 error = USBD_NORMAL_COMPLETION; 3301 } 3302 } 3303 break; 3304 case UR_SET_CONFIG: 3305 if (type == UT_WRITE_DEVICE) { 3306 DLOG(D_ROOT, "Set Config %#.4x", value, 0,0,0); 3307 if (value == 0 || value == 1) { 3308 t->rootconf = value; 3309 error = USBD_NORMAL_COMPLETION; 3310 } 3311 } 3312 break; 3313 /* Read Requests */ 3314 case UR_GET_STATUS: 3315 if (type == UT_READ_CLASS_OTHER) { 3316 if (index == 1 /* Port */ && len == /* XXX >=? */ 3317 sizeof(usb_port_status_t)) { 3318 slhci_get_status(sc, (usb_port_status_t *) 3319 buf); 3320 actlen = sizeof(usb_port_status_t); 3321 error = USBD_NORMAL_COMPLETION; 3322 } else 3323 DLOG(D_ROOT, "Get Port Status index = %#.4x " 3324 "len = %#.4x", index, len, 0,0); 3325 } else if (type == UT_READ_CLASS_DEVICE) { /* XXX index? */ 3326 if (len == sizeof(usb_hub_status_t)) { 3327 DLOG(D_ROOT, "Get Hub Status", 3328 0,0,0,0); 3329 actlen = sizeof(usb_hub_status_t); 3330 memset(buf, 0, actlen); 3331 error = USBD_NORMAL_COMPLETION; 3332 } else 3333 DLOG(D_ROOT, "Get Hub Status bad len %#.4x", 3334 len, 0,0,0); 3335 } else if (type == UT_READ_DEVICE) { 3336 if (len >= 2) { 3337 USETW(((usb_status_t *)buf)->wStatus, UDS_SELF_POWERED); 3338 actlen = 2; 3339 error = USBD_NORMAL_COMPLETION; 3340 } 3341 } else if (type == (UT_READ_INTERFACE|UT_READ_ENDPOINT)) { 3342 if (len >= 2) { 3343 USETW(((usb_status_t *)buf)->wStatus, 0); 3344 actlen = 2; 3345 error = USBD_NORMAL_COMPLETION; 3346 } 3347 } 3348 break; 3349 case UR_GET_CONFIG: 3350 if (type == UT_READ_DEVICE) { 3351 DLOG(D_ROOT, "Get Config", 0,0,0,0); 3352 if (len > 0) { 3353 *buf = t->rootconf; 3354 actlen = 1; 3355 error = USBD_NORMAL_COMPLETION; 3356 } 3357 } 3358 break; 3359 case UR_GET_INTERFACE: 3360 if (type == UT_READ_INTERFACE) { 3361 if (len > 0) { 3362 *buf = 0; 3363 actlen = 1; 3364 error = USBD_NORMAL_COMPLETION; 3365 } 3366 } 3367 break; 3368 case UR_GET_DESCRIPTOR: 3369 if (type == UT_READ_DEVICE) { 3370 /* value is type (&0xff00) and index (0xff) */ 3371 if (value == (UDESC_DEVICE<<8)) { 3372 actlen = min(len, sizeof(slhci_devd)); 3373 memcpy(buf, &slhci_devd, actlen); 3374 error = USBD_NORMAL_COMPLETION; 3375 } else if (value == (UDESC_CONFIG<<8)) { 3376 actlen = min(len, sizeof(slhci_confd)); 3377 memcpy(buf, &slhci_confd, actlen); 3378 if (actlen > offsetof(usb_config_descriptor_t, 3379 bMaxPower)) 3380 ((usb_config_descriptor_t *) 3381 buf)->bMaxPower = t->max_current; 3382 /* 2 mA units */ 3383 error = USBD_NORMAL_COMPLETION; 3384 } else if (value == (UDESC_STRING<<8)) { 3385 /* language table XXX */ 3386 } else if (value == ((UDESC_STRING<<8)|1)) { 3387 /* Vendor */ 3388 actlen = usb_makestrdesc((usb_string_descriptor_t *) 3389 buf, len, "ScanLogic/Cypress"); 3390 error = USBD_NORMAL_COMPLETION; 3391 } else if (value == ((UDESC_STRING<<8)|2)) { 3392 /* Product */ 3393 actlen = usb_makestrdesc((usb_string_descriptor_t *) 3394 buf, len, "SL811HS/T root hub"); 3395 error = USBD_NORMAL_COMPLETION; 3396 } else 3397 DDOLOG("Unknown Get Descriptor %#.4x", 3398 value, 0,0,0); 3399 } else if (type == UT_READ_CLASS_DEVICE) { 3400 /* Descriptor number is 0 */ 3401 if (value == (UDESC_HUB<<8)) { 3402 actlen = min(len, sizeof(slhci_hubd)); 3403 memcpy(buf, &slhci_hubd, actlen); 3404 if (actlen > offsetof(usb_config_descriptor_t, 3405 bMaxPower)) 3406 ((usb_hub_descriptor_t *) 3407 buf)->bHubContrCurrent = 500 - 3408 t->max_current; 3409 error = USBD_NORMAL_COMPLETION; 3410 } else 3411 DDOLOG("Unknown Get Hub Descriptor %#.4x", 3412 value, 0,0,0); 3413 } 3414 break; 3415 } 3416 3417 if (error == USBD_NORMAL_COMPLETION) 3418 xfer->actlen = actlen; 3419 xfer->status = error; 3420 KASSERT(spipe->xfer == NULL); 3421 spipe->xfer = xfer; 3422 enter_callback(t, spipe); 3423 3424 return USBD_IN_PROGRESS; 3425 } 3426 3427 /* End in lock functions. Start debug functions. */ 3428 3429 #ifdef SLHCI_DEBUG 3430 void 3431 slhci_log_buffer(struct usbd_xfer *xfer) 3432 { 3433 u_char *buf; 3434 3435 if(xfer->length > 0 && 3436 UE_GET_DIR(xfer->pipe->endpoint->edesc->bEndpointAddress) == 3437 UE_DIR_IN) { 3438 buf = KERNADDR(&xfer->dmabuf, 0); 3439 DDOLOGBUF(buf, xfer->actlen); 3440 DDOLOG("len %d actlen %d short %d", xfer->length, 3441 xfer->actlen, xfer->length - xfer->actlen, 0); 3442 } 3443 } 3444 3445 void 3446 slhci_log_req(usb_device_request_t *r) 3447 { 3448 static const char *xmes[]={ 3449 "GETSTAT", 3450 "CLRFEAT", 3451 "res", 3452 "SETFEAT", 3453 "res", 3454 "SETADDR", 3455 "GETDESC", 3456 "SETDESC", 3457 "GETCONF", 3458 "SETCONF", 3459 "GETIN/F", 3460 "SETIN/F", 3461 "SYNC_FR", 3462 "UNKNOWN" 3463 }; 3464 int req, mreq, type, value, index, len; 3465 3466 req = r->bRequest; 3467 mreq = (req > 13) ? 13 : req; 3468 type = r->bmRequestType; 3469 value = UGETW(r->wValue); 3470 index = UGETW(r->wIndex); 3471 len = UGETW(r->wLength); 3472 3473 DDOLOG("request: %s %#x", xmes[mreq], type, 0,0); 3474 DDOLOG("request: r=%d,v=%d,i=%d,l=%d ", req, value, index, len); 3475 } 3476 3477 void 3478 slhci_log_req_hub(usb_device_request_t *r) 3479 { 3480 static const struct { 3481 int req; 3482 int type; 3483 const char *str; 3484 } conf[] = { 3485 { 1, 0x20, "ClrHubFeat" }, 3486 { 1, 0x23, "ClrPortFeat" }, 3487 { 2, 0xa3, "GetBusState" }, 3488 { 6, 0xa0, "GetHubDesc" }, 3489 { 0, 0xa0, "GetHubStat" }, 3490 { 0, 0xa3, "GetPortStat" }, 3491 { 7, 0x20, "SetHubDesc" }, 3492 { 3, 0x20, "SetHubFeat" }, 3493 { 3, 0x23, "SetPortFeat" }, 3494 {-1, 0, NULL}, 3495 }; 3496 int i; 3497 int value, index, len; 3498 const char *str; 3499 3500 value = UGETW(r->wValue); 3501 index = UGETW(r->wIndex); 3502 len = UGETW(r->wLength); 3503 for (i = 0; ; i++) { 3504 if (conf[i].req == -1 ) { 3505 slhci_log_req(r); 3506 return; 3507 } 3508 if (r->bmRequestType == conf[i].type && r->bRequest == conf[i].req) { 3509 str = conf[i].str; 3510 break; 3511 } 3512 } 3513 DDOLOG("hub request: %s v=%d,i=%d,l=%d ", str, value, index, len); 3514 } 3515 3516 void 3517 slhci_log_dumpreg(void) 3518 { 3519 uint8_t r; 3520 unsigned int aaddr, alen, baddr, blen; 3521 static u_char buf[240]; 3522 3523 r = slhci_read(ssc, SL11_E0CTRL); 3524 DDOLOG("USB A Host Control = %#.2x", r, 0,0,0); 3525 DDOLOGFLAG8("E0CTRL=", r, "Preamble", "Data Toggle", "SOF Sync", 3526 "ISOC", "res", "Out", "Enable", "Arm"); 3527 aaddr = slhci_read(ssc, SL11_E0ADDR); 3528 DDOLOG("USB A Base Address = %u", aaddr, 0,0,0); 3529 alen = slhci_read(ssc, SL11_E0LEN); 3530 DDOLOG("USB A Length = %u", alen, 0,0,0); 3531 r = slhci_read(ssc, SL11_E0STAT); 3532 DDOLOG("USB A Status = %#.2x", r, 0,0,0); 3533 DDOLOGFLAG8("E0STAT=", r, "STALL", "NAK", "Overflow", "Setup", 3534 "Data Toggle", "Timeout", "Error", "ACK"); 3535 r = slhci_read(ssc, SL11_E0CONT); 3536 DDOLOG("USB A Remaining or Overflow Length = %u", r, 0,0,0); 3537 r = slhci_read(ssc, SL11_E1CTRL); 3538 DDOLOG("USB B Host Control = %#.2x", r, 0,0,0); 3539 DDOLOGFLAG8("E1CTRL=", r, "Preamble", "Data Toggle", "SOF Sync", 3540 "ISOC", "res", "Out", "Enable", "Arm"); 3541 baddr = slhci_read(ssc, SL11_E1ADDR); 3542 DDOLOG("USB B Base Address = %u", baddr, 0,0,0); 3543 blen = slhci_read(ssc, SL11_E1LEN); 3544 DDOLOG("USB B Length = %u", blen, 0,0,0); 3545 r = slhci_read(ssc, SL11_E1STAT); 3546 DDOLOG("USB B Status = %#.2x", r, 0,0,0); 3547 DDOLOGFLAG8("E1STAT=", r, "STALL", "NAK", "Overflow", "Setup", 3548 "Data Toggle", "Timeout", "Error", "ACK"); 3549 r = slhci_read(ssc, SL11_E1CONT); 3550 DDOLOG("USB B Remaining or Overflow Length = %u", r, 0,0,0); 3551 3552 r = slhci_read(ssc, SL11_CTRL); 3553 DDOLOG("Control = %#.2x", r, 0,0,0); 3554 DDOLOGFLAG8("CTRL=", r, "res", "Suspend", "LOW Speed", 3555 "J-K State Force", "Reset", "res", "res", "SOF"); 3556 r = slhci_read(ssc, SL11_IER); 3557 DDOLOG("Interrupt Enable = %#.2x", r, 0,0,0); 3558 DDOLOGFLAG8("IER=", r, "D+ **IER!**", "Device Detect/Resume", 3559 "Insert/Remove", "SOF", "res", "res", "USBB", "USBA"); 3560 r = slhci_read(ssc, SL11_ISR); 3561 DDOLOG("Interrupt Status = %#.2x", r, 0,0,0); 3562 DDOLOGFLAG8("ISR=", r, "D+", "Device Detect/Resume", 3563 "Insert/Remove", "SOF", "res", "res", "USBB", "USBA"); 3564 r = slhci_read(ssc, SL11_REV); 3565 DDOLOG("Revision = %#.2x", r, 0,0,0); 3566 r = slhci_read(ssc, SL811_CSOF); 3567 DDOLOG("SOF Counter = %#.2x", r, 0,0,0); 3568 3569 if (alen && aaddr >= SL11_BUFFER_START && aaddr < SL11_BUFFER_END && 3570 alen <= SL11_MAX_PACKET_SIZE && aaddr + alen <= SL11_BUFFER_END) { 3571 slhci_read_multi(ssc, aaddr, buf, alen); 3572 DDOLOG("USBA Buffer: start %u len %u", aaddr, alen, 0,0); 3573 DDOLOGBUF(buf, alen); 3574 } else if (alen) 3575 DDOLOG("USBA Buffer Invalid", 0,0,0,0); 3576 3577 if (blen && baddr >= SL11_BUFFER_START && baddr < SL11_BUFFER_END && 3578 blen <= SL11_MAX_PACKET_SIZE && baddr + blen <= SL11_BUFFER_END) { 3579 slhci_read_multi(ssc, baddr, buf, blen); 3580 DDOLOG("USBB Buffer: start %u len %u", baddr, blen, 0,0); 3581 DDOLOGBUF(buf, blen); 3582 } else if (blen) 3583 DDOLOG("USBB Buffer Invalid", 0,0,0,0); 3584 } 3585 3586 void 3587 slhci_log_xfer(struct usbd_xfer *xfer) 3588 { 3589 DDOLOG("xfer: length=%u, actlen=%u, flags=%#x, timeout=%u,", 3590 xfer->length, xfer->actlen, xfer->flags, xfer->timeout); 3591 if (xfer->dmabuf.block) 3592 DDOLOG("buffer=%p", KERNADDR(&xfer->dmabuf, 0), 0,0,0); 3593 slhci_log_req_hub(&xfer->request); 3594 } 3595 3596 void 3597 slhci_log_spipe(struct slhci_pipe *spipe) 3598 { 3599 DDOLOG("spipe %p onlists: %s %s %s", spipe, gcq_onlist(&spipe->ap) ? 3600 "AP" : "", gcq_onlist(&spipe->to) ? "TO" : "", 3601 gcq_onlist(&spipe->xq) ? "XQ" : ""); 3602 DDOLOG("spipe: xfer %p buffer %p pflags %#x ptype %s", 3603 spipe->xfer, spipe->buffer, spipe->pflags, pnames(spipe->ptype)); 3604 } 3605 3606 void 3607 slhci_print_intr(void) 3608 { 3609 unsigned int ier, isr; 3610 ier = slhci_read(ssc, SL11_IER); 3611 isr = slhci_read(ssc, SL11_ISR); 3612 printf("IER: %#x ISR: %#x \n", ier, isr); 3613 } 3614 3615 #if 0 3616 void 3617 slhci_log_sc(void) 3618 { 3619 struct slhci_transfers *t; 3620 int i; 3621 3622 t = &ssc->sc_transfers; 3623 3624 DDOLOG("Flags=%#x", t->flags, 0,0,0); 3625 DDOLOG("a = %p Alen=%d b = %p Blen=%d", t->spipe[0], t->len[0], 3626 t->spipe[1], t->len[1]); 3627 3628 for (i=0; i<=Q_MAX; i++) 3629 DDOLOG("Q %d: %p", i, gcq_first(&t->q[i]), 0,0); 3630 3631 DDOLOG("TIMED: %p", GCQ_ITEM(gcq_first(&t->to), 3632 struct slhci_pipe, to), 0,0,0); 3633 3634 DDOLOG("frame=%d rootintr=%p", t->frame, t->rootintr, 0,0); 3635 3636 DDOLOG("use_polling=%d", ssc->sc_bus.use_polling, 0, 0, 0); 3637 } 3638 3639 void 3640 slhci_log_slreq(struct slhci_pipe *r) 3641 { 3642 DDOLOG("next: %p", r->q.next.sqe_next, 0,0,0); 3643 DDOLOG("xfer: %p", r->xfer, 0,0,0); 3644 DDOLOG("buffer: %p", r->buffer, 0,0,0); 3645 DDOLOG("bustime: %u", r->bustime, 0,0,0); 3646 DDOLOG("control: %#x", r->control, 0,0,0); 3647 DDOLOGFLAG8("control=", r->control, "Preamble", "Data Toggle", 3648 "SOF Sync", "ISOC", "res", "Out", "Enable", "Arm"); 3649 DDOLOG("pid: %#x", r->tregs[PID], 0,0,0); 3650 DDOLOG("dev: %u", r->tregs[DEV], 0,0,0); 3651 DDOLOG("len: %u", r->tregs[LEN], 0,0,0); 3652 3653 if (r->xfer) 3654 slhci_log_xfer(r->xfer); 3655 } 3656 #endif 3657 #endif /* SLHCI_DEBUG */ 3658 /* End debug functions. */ 3659
Indexes created Mon Sep 29 21:09:56 GMT 2025