| 1 | /* $NetBSD: sl811hs.c,v 1.97 2016/10/01 13:46:52 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 | * ub_usepolling support is untested and may not work |
| 68 | */ |
| 69 | |
| 70 | #include <sys/cdefs.h> |
| 71 | __KERNEL_RCSID(0, "$NetBSD: sl811hs.c,v 1.97 2016/10/01 13:46:52 christos Exp $" ); |
| 72 | |
| 73 | #ifdef _KERNEL_OPT |
| 74 | #include "opt_slhci.h" |
| 75 | #include "opt_usb.h" |
| 76 | #endif |
| 77 | |
| 78 | #include <sys/param.h> |
| 79 | |
| 80 | #include <sys/bus.h> |
| 81 | #include <sys/cpu.h> |
| 82 | #include <sys/device.h> |
| 83 | #include <sys/gcq.h> |
| 84 | #include <sys/intr.h> |
| 85 | #include <sys/kernel.h> |
| 86 | #include <sys/kmem.h> |
| 87 | #include <sys/proc.h> |
| 88 | #include <sys/queue.h> |
| 89 | #include <sys/sysctl.h> |
| 90 | #include <sys/systm.h> |
| 91 | |
| 92 | #include <dev/usb/usb.h> |
| 93 | #include <dev/usb/usbdi.h> |
| 94 | #include <dev/usb/usbdivar.h> |
| 95 | #include <dev/usb/usbhist.h> |
| 96 | #include <dev/usb/usb_mem.h> |
| 97 | #include <dev/usb/usbdevs.h> |
| 98 | #include <dev/usb/usbroothub.h> |
| 99 | |
| 100 | #include <dev/ic/sl811hsreg.h> |
| 101 | #include <dev/ic/sl811hsvar.h> |
| 102 | |
| 103 | #define Q_CB 0 /* Control/Bulk */ |
| 104 | #define Q_NEXT_CB 1 |
| 105 | #define Q_MAX_XFER Q_CB |
| 106 | #define Q_CALLBACKS 2 |
| 107 | #define Q_MAX Q_CALLBACKS |
| 108 | |
| 109 | #define F_AREADY (0x00000001) |
| 110 | #define F_BREADY (0x00000002) |
| 111 | #define F_AINPROG (0x00000004) |
| 112 | #define F_BINPROG (0x00000008) |
| 113 | #define F_LOWSPEED (0x00000010) |
| 114 | #define F_UDISABLED (0x00000020) /* Consider disabled for USB */ |
| 115 | #define F_NODEV (0x00000040) |
| 116 | #define F_ROOTINTR (0x00000080) |
| 117 | #define F_REALPOWER (0x00000100) /* Actual power state */ |
| 118 | #define F_POWER (0x00000200) /* USB reported power state */ |
| 119 | #define F_ACTIVE (0x00000400) |
| 120 | #define F_CALLBACK (0x00000800) /* Callback scheduled */ |
| 121 | #define F_SOFCHECK1 (0x00001000) |
| 122 | #define F_SOFCHECK2 (0x00002000) |
| 123 | #define F_CRESET (0x00004000) /* Reset done not reported */ |
| 124 | #define F_CCONNECT (0x00008000) /* Connect change not reported */ |
| 125 | #define F_RESET (0x00010000) |
| 126 | #define F_ISOC_WARNED (0x00020000) |
| 127 | #define F_LSVH_WARNED (0x00040000) |
| 128 | |
| 129 | #define F_DISABLED (F_NODEV|F_UDISABLED) |
| 130 | #define F_CHANGE (F_CRESET|F_CCONNECT) |
| 131 | |
| 132 | #ifdef SLHCI_TRY_LSVH |
| 133 | unsigned int slhci_try_lsvh = 1; |
| 134 | #else |
| 135 | unsigned int slhci_try_lsvh = 0; |
| 136 | #endif |
| 137 | |
| 138 | #define ADR 0 |
| 139 | #define LEN 1 |
| 140 | #define PID 2 |
| 141 | #define DEV 3 |
| 142 | #define STAT 2 |
| 143 | #define CONT 3 |
| 144 | |
| 145 | #define A 0 |
| 146 | #define B 1 |
| 147 | |
| 148 | static const uint8_t slhci_tregs[2][4] = |
| 149 | {{SL11_E0ADDR, SL11_E0LEN, SL11_E0PID, SL11_E0DEV }, |
| 150 | {SL11_E1ADDR, SL11_E1LEN, SL11_E1PID, SL11_E1DEV }}; |
| 151 | |
| 152 | #define PT_ROOT_CTRL 0 |
| 153 | #define PT_ROOT_INTR 1 |
| 154 | #define PT_CTRL_SETUP 2 |
| 155 | #define PT_CTRL_DATA 3 |
| 156 | #define PT_CTRL_STATUS 4 |
| 157 | #define PT_INTR 5 |
| 158 | #define PT_BULK 6 |
| 159 | #define PT_MAX 6 |
| 160 | |
| 161 | #ifdef SLHCI_DEBUG |
| 162 | #define SLHCI_MEM_ACCOUNTING |
| 163 | #endif |
| 164 | |
| 165 | /* |
| 166 | * Maximum allowable reserved bus time. Since intr/isoc transfers have |
| 167 | * unconditional priority, this is all that ensures control and bulk transfers |
| 168 | * get a chance. It is a single value for all frames since all transfers can |
| 169 | * use multiple consecutive frames if an error is encountered. Note that it |
| 170 | * is not really possible to fill the bus with transfers, so this value should |
| 171 | * be on the low side. Defaults to giving a warning unless SLHCI_NO_OVERTIME |
| 172 | * is defined. Full time is 12000 - END_BUSTIME. |
| 173 | */ |
| 174 | #ifndef SLHCI_RESERVED_BUSTIME |
| 175 | #define SLHCI_RESERVED_BUSTIME 5000 |
| 176 | #endif |
| 177 | |
| 178 | /* |
| 179 | * Rate for "exceeds reserved bus time" warnings (default) or errors. |
| 180 | * Warnings only happen when an endpoint open causes the time to go above |
| 181 | * SLHCI_RESERVED_BUSTIME, not if it is already above. |
| 182 | */ |
| 183 | #ifndef SLHCI_OVERTIME_WARNING_RATE |
| 184 | #define SLHCI_OVERTIME_WARNING_RATE { 60, 0 } /* 60 seconds */ |
| 185 | #endif |
| 186 | static const struct timeval reserved_warn_rate = SLHCI_OVERTIME_WARNING_RATE; |
| 187 | |
| 188 | /* |
| 189 | * For EOF, the spec says 42 bit times, plus (I think) a possible hub skew of |
| 190 | * 20 bit times. By default leave 66 bit times to start the transfer beyond |
| 191 | * the required time. Units are full-speed bit times (a bit over 5us per 64). |
| 192 | * Only multiples of 64 are significant. |
| 193 | */ |
| 194 | #define SLHCI_STANDARD_END_BUSTIME 128 |
| 195 | #ifndef SLHCI_EXTRA_END_BUSTIME |
| 196 | #define 0 |
| 197 | #endif |
| 198 | |
| 199 | #define SLHCI_END_BUSTIME (SLHCI_STANDARD_END_BUSTIME+SLHCI_EXTRA_END_BUSTIME) |
| 200 | |
| 201 | /* |
| 202 | * This is an approximation of the USB worst-case timings presented on p. 54 of |
| 203 | * the USB 1.1 spec translated to full speed bit times. |
| 204 | * FS = full speed with handshake, FSII = isoc in, FSIO = isoc out, |
| 205 | * FSI = isoc (worst case), LS = low speed |
| 206 | */ |
| 207 | #define SLHCI_FS_CONST 114 |
| 208 | #define SLHCI_FSII_CONST 92 |
| 209 | #define SLHCI_FSIO_CONST 80 |
| 210 | #define SLHCI_FSI_CONST 92 |
| 211 | #define SLHCI_LS_CONST 804 |
| 212 | #ifndef SLHCI_PRECICE_BUSTIME |
| 213 | /* |
| 214 | * These values are < 3% too high (compared to the multiply and divide) for |
| 215 | * max sized packets. |
| 216 | */ |
| 217 | #define SLHCI_FS_DATA_TIME(len) (((u_int)(len)<<3)+(len)+((len)>>1)) |
| 218 | #define SLHCI_LS_DATA_TIME(len) (((u_int)(len)<<6)+((u_int)(len)<<4)) |
| 219 | #else |
| 220 | #define SLHCI_FS_DATA_TIME(len) (56*(len)/6) |
| 221 | #define SLHCI_LS_DATA_TIME(len) (449*(len)/6) |
| 222 | #endif |
| 223 | |
| 224 | /* |
| 225 | * Set SLHCI_WAIT_SIZE to the desired maximum size of single FS transfer |
| 226 | * to poll for after starting a transfer. 64 gets all full speed transfers. |
| 227 | * Note that even if 0 polling will occur if data equal or greater than the |
| 228 | * transfer size is copied to the chip while the transfer is in progress. |
| 229 | * Setting SLHCI_WAIT_TIME to -12000 will disable polling. |
| 230 | */ |
| 231 | #ifndef SLHCI_WAIT_SIZE |
| 232 | #define SLHCI_WAIT_SIZE 8 |
| 233 | #endif |
| 234 | #ifndef SLHCI_WAIT_TIME |
| 235 | #define SLHCI_WAIT_TIME (SLHCI_FS_CONST + \ |
| 236 | SLHCI_FS_DATA_TIME(SLHCI_WAIT_SIZE)) |
| 237 | #endif |
| 238 | const int slhci_wait_time = SLHCI_WAIT_TIME; |
| 239 | |
| 240 | #ifndef SLHCI_MAX_RETRIES |
| 241 | #define SLHCI_MAX_RETRIES 3 |
| 242 | #endif |
| 243 | |
| 244 | /* Check IER values for corruption after this many unrecognized interrupts. */ |
| 245 | #ifndef SLHCI_IER_CHECK_FREQUENCY |
| 246 | #ifdef SLHCI_DEBUG |
| 247 | #define SLHCI_IER_CHECK_FREQUENCY 1 |
| 248 | #else |
| 249 | #define SLHCI_IER_CHECK_FREQUENCY 100 |
| 250 | #endif |
| 251 | #endif |
| 252 | |
| 253 | /* Note that buffer points to the start of the buffer for this transfer. */ |
| 254 | struct slhci_pipe { |
| 255 | struct usbd_pipe pipe; |
| 256 | struct usbd_xfer *xfer; /* xfer in progress */ |
| 257 | uint8_t *buffer; /* I/O buffer (if needed) */ |
| 258 | struct gcq ap; /* All pipes */ |
| 259 | struct gcq to; /* Timeout list */ |
| 260 | struct gcq xq; /* Xfer queues */ |
| 261 | unsigned int pflags; /* Pipe flags */ |
| 262 | #define PF_GONE (0x01) /* Pipe is on disabled device */ |
| 263 | #define PF_TOGGLE (0x02) /* Data toggle status */ |
| 264 | #define PF_LS (0x04) /* Pipe is low speed */ |
| 265 | #define PF_PREAMBLE (0x08) /* Needs preamble */ |
| 266 | Frame to_frame; /* Frame number for timeout */ |
| 267 | Frame frame; /* Frame number for intr xfer */ |
| 268 | Frame lastframe; /* Previous frame number for intr */ |
| 269 | uint16_t bustime; /* Worst case bus time usage */ |
| 270 | uint16_t newbustime[2]; /* new bustimes (see index below) */ |
| 271 | uint8_t tregs[4]; /* ADR, LEN, PID, DEV */ |
| 272 | uint8_t newlen[2]; /* 0 = short data, 1 = ctrl data */ |
| 273 | uint8_t newpid; /* for ctrl */ |
| 274 | uint8_t wantshort; /* last xfer must be short */ |
| 275 | uint8_t control; /* Host control register settings */ |
| 276 | uint8_t nerrs; /* Current number of errors */ |
| 277 | uint8_t ptype; /* Pipe type */ |
| 278 | }; |
| 279 | |
| 280 | #define SLHCI_BUS2SC(bus) ((bus)->ub_hcpriv) |
| 281 | #define SLHCI_PIPE2SC(pipe) SLHCI_BUS2SC((pipe)->up_dev->ud_bus) |
| 282 | #define SLHCI_XFER2SC(xfer) SLHCI_BUS2SC((xfer)->ux_bus) |
| 283 | |
| 284 | #define SLHCI_PIPE2SPIPE(pipe) ((struct slhci_pipe *)(pipe)) |
| 285 | #define SLHCI_XFER2SPIPE(xfer) SLHCI_PIPE2SPIPE((xfer)->ux_pipe) |
| 286 | |
| 287 | #define SLHCI_XFER_TYPE(x) (SLHCI_XFER2SPIPE(xfer)->ptype) |
| 288 | |
| 289 | #ifdef SLHCI_PROFILE_TRANSFER |
| 290 | #if defined(__mips__) |
| 291 | /* |
| 292 | * MIPS cycle counter does not directly count cpu cycles but is a different |
| 293 | * fraction of cpu cycles depending on the cpu. |
| 294 | */ |
| 295 | typedef uint32_t cc_type; |
| 296 | #define CC_TYPE_FMT "%u" |
| 297 | #define slhci_cc_set(x) __asm volatile ("mfc0 %[cc], $9\n\tnop\n\tnop\n\tnop" \ |
| 298 | : [cc] "=r"(x)) |
| 299 | #elif defined(__i386__) |
| 300 | typedef uint64_t cc_type; |
| 301 | #define CC_TYPE_FMT "%llu" |
| 302 | #define slhci_cc_set(x) __asm volatile ("rdtsc" : "=A"(x)) |
| 303 | #else |
| 304 | #error "SLHCI_PROFILE_TRANSFER not implemented on this MACHINE_ARCH (see sys/dev/ic/sl811hs.c)" |
| 305 | #endif |
| 306 | struct slhci_cc_time { |
| 307 | cc_type start; |
| 308 | cc_type stop; |
| 309 | unsigned int miscdata; |
| 310 | }; |
| 311 | #ifndef SLHCI_N_TIMES |
| 312 | #define SLHCI_N_TIMES 200 |
| 313 | #endif |
| 314 | struct slhci_cc_times { |
| 315 | struct slhci_cc_time times[SLHCI_N_TIMES]; |
| 316 | int current; |
| 317 | int wraparound; |
| 318 | }; |
| 319 | |
| 320 | static struct slhci_cc_times t_ab[2]; |
| 321 | static struct slhci_cc_times t_abdone; |
| 322 | static struct slhci_cc_times t_copy_to_dev; |
| 323 | static struct slhci_cc_times t_copy_from_dev; |
| 324 | static struct slhci_cc_times t_intr; |
| 325 | static struct slhci_cc_times t_lock; |
| 326 | static struct slhci_cc_times t_delay; |
| 327 | static struct slhci_cc_times t_hard_int; |
| 328 | static struct slhci_cc_times t_callback; |
| 329 | |
| 330 | static inline void |
| 331 | start_cc_time(struct slhci_cc_times *times, unsigned int misc) { |
| 332 | times->times[times->current].miscdata = misc; |
| 333 | slhci_cc_set(times->times[times->current].start); |
| 334 | } |
| 335 | static inline void |
| 336 | stop_cc_time(struct slhci_cc_times *times) { |
| 337 | slhci_cc_set(times->times[times->current].stop); |
| 338 | if (++times->current >= SLHCI_N_TIMES) { |
| 339 | times->current = 0; |
| 340 | times->wraparound = 1; |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | void slhci_dump_cc_times(int); |
| 345 | |
| 346 | void |
| 347 | slhci_dump_cc_times(int n) { |
| 348 | struct slhci_cc_times *times; |
| 349 | int i; |
| 350 | |
| 351 | switch (n) { |
| 352 | default: |
| 353 | case 0: |
| 354 | printf("USBA start transfer to intr:\n" ); |
| 355 | times = &t_ab[A]; |
| 356 | break; |
| 357 | case 1: |
| 358 | printf("USBB start transfer to intr:\n" ); |
| 359 | times = &t_ab[B]; |
| 360 | break; |
| 361 | case 2: |
| 362 | printf("abdone:\n" ); |
| 363 | times = &t_abdone; |
| 364 | break; |
| 365 | case 3: |
| 366 | printf("copy to device:\n" ); |
| 367 | times = &t_copy_to_dev; |
| 368 | break; |
| 369 | case 4: |
| 370 | printf("copy from device:\n" ); |
| 371 | times = &t_copy_from_dev; |
| 372 | break; |
| 373 | case 5: |
| 374 | printf("intr to intr:\n" ); |
| 375 | times = &t_intr; |
| 376 | break; |
| 377 | case 6: |
| 378 | printf("lock to release:\n" ); |
| 379 | times = &t_lock; |
| 380 | break; |
| 381 | case 7: |
| 382 | printf("delay time:\n" ); |
| 383 | times = &t_delay; |
| 384 | break; |
| 385 | case 8: |
| 386 | printf("hard interrupt enter to exit:\n" ); |
| 387 | times = &t_hard_int; |
| 388 | break; |
| 389 | case 9: |
| 390 | printf("callback:\n" ); |
| 391 | times = &t_callback; |
| 392 | break; |
| 393 | } |
| 394 | |
| 395 | if (times->wraparound) |
| 396 | for (i = times->current + 1; i < SLHCI_N_TIMES; i++) |
| 397 | printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT |
| 398 | " difference %8i miscdata %#x\n" , |
| 399 | times->times[i].start, times->times[i].stop, |
| 400 | (int)(times->times[i].stop - |
| 401 | times->times[i].start), times->times[i].miscdata); |
| 402 | |
| 403 | for (i = 0; i < times->current; i++) |
| 404 | printf("start " CC_TYPE_FMT " stop " CC_TYPE_FMT |
| 405 | " difference %8i miscdata %#x\n" , times->times[i].start, |
| 406 | times->times[i].stop, (int)(times->times[i].stop - |
| 407 | times->times[i].start), times->times[i].miscdata); |
| 408 | } |
| 409 | #else |
| 410 | #define start_cc_time(x, y) |
| 411 | #define stop_cc_time(x) |
| 412 | #endif /* SLHCI_PROFILE_TRANSFER */ |
| 413 | |
| 414 | typedef usbd_status (*LockCallFunc)(struct slhci_softc *, struct slhci_pipe |
| 415 | *, struct usbd_xfer *); |
| 416 | |
| 417 | struct usbd_xfer * slhci_allocx(struct usbd_bus *, unsigned int); |
| 418 | void slhci_freex(struct usbd_bus *, struct usbd_xfer *); |
| 419 | static void slhci_get_lock(struct usbd_bus *, kmutex_t **); |
| 420 | |
| 421 | usbd_status slhci_transfer(struct usbd_xfer *); |
| 422 | usbd_status slhci_start(struct usbd_xfer *); |
| 423 | usbd_status slhci_root_start(struct usbd_xfer *); |
| 424 | usbd_status slhci_open(struct usbd_pipe *); |
| 425 | |
| 426 | static int slhci_roothub_ctrl(struct usbd_bus *, usb_device_request_t *, |
| 427 | void *, int); |
| 428 | |
| 429 | /* |
| 430 | * slhci_supported_rev, slhci_preinit, slhci_attach, slhci_detach, |
| 431 | * slhci_activate |
| 432 | */ |
| 433 | |
| 434 | void slhci_abort(struct usbd_xfer *); |
| 435 | void slhci_close(struct usbd_pipe *); |
| 436 | void slhci_clear_toggle(struct usbd_pipe *); |
| 437 | void slhci_poll(struct usbd_bus *); |
| 438 | void slhci_done(struct usbd_xfer *); |
| 439 | void slhci_void(void *); |
| 440 | |
| 441 | /* lock entry functions */ |
| 442 | |
| 443 | #ifdef SLHCI_MEM_ACCOUNTING |
| 444 | void slhci_mem_use(struct usbd_bus *, int); |
| 445 | #endif |
| 446 | |
| 447 | void slhci_reset_entry(void *); |
| 448 | usbd_status slhci_lock_call(struct slhci_softc *, LockCallFunc, |
| 449 | struct slhci_pipe *, struct usbd_xfer *); |
| 450 | void slhci_start_entry(struct slhci_softc *, struct slhci_pipe *); |
| 451 | void slhci_callback_entry(void *arg); |
| 452 | void slhci_do_callback(struct slhci_softc *, struct usbd_xfer *); |
| 453 | |
| 454 | /* slhci_intr */ |
| 455 | |
| 456 | void slhci_main(struct slhci_softc *); |
| 457 | |
| 458 | /* in lock functions */ |
| 459 | |
| 460 | static void slhci_write(struct slhci_softc *, uint8_t, uint8_t); |
| 461 | static uint8_t slhci_read(struct slhci_softc *, uint8_t); |
| 462 | static void slhci_write_multi(struct slhci_softc *, uint8_t, uint8_t *, int); |
| 463 | static void slhci_read_multi(struct slhci_softc *, uint8_t, uint8_t *, int); |
| 464 | |
| 465 | static void slhci_waitintr(struct slhci_softc *, int); |
| 466 | static int slhci_dointr(struct slhci_softc *); |
| 467 | static void slhci_abdone(struct slhci_softc *, int); |
| 468 | static void slhci_tstart(struct slhci_softc *); |
| 469 | static void slhci_dotransfer(struct slhci_softc *); |
| 470 | |
| 471 | static void slhci_callback(struct slhci_softc *); |
| 472 | static void slhci_enter_xfer(struct slhci_softc *, struct slhci_pipe *); |
| 473 | static void slhci_enter_xfers(struct slhci_softc *); |
| 474 | static void slhci_queue_timed(struct slhci_softc *, struct slhci_pipe *); |
| 475 | static void slhci_xfer_timer(struct slhci_softc *, struct slhci_pipe *); |
| 476 | |
| 477 | static void slhci_callback_schedule(struct slhci_softc *); |
| 478 | static void slhci_do_callback_schedule(struct slhci_softc *); |
| 479 | #if 0 |
| 480 | void slhci_pollxfer(struct slhci_softc *, struct usbd_xfer *); /* XXX */ |
| 481 | #endif |
| 482 | |
| 483 | static usbd_status slhci_do_poll(struct slhci_softc *, struct slhci_pipe *, |
| 484 | struct usbd_xfer *); |
| 485 | static usbd_status slhci_lsvh_warn(struct slhci_softc *, struct slhci_pipe *, |
| 486 | struct usbd_xfer *); |
| 487 | static usbd_status slhci_isoc_warn(struct slhci_softc *, struct slhci_pipe *, |
| 488 | struct usbd_xfer *); |
| 489 | static usbd_status slhci_open_pipe(struct slhci_softc *, struct slhci_pipe *, |
| 490 | struct usbd_xfer *); |
| 491 | static usbd_status slhci_close_pipe(struct slhci_softc *, struct slhci_pipe *, |
| 492 | struct usbd_xfer *); |
| 493 | static usbd_status slhci_do_abort(struct slhci_softc *, struct slhci_pipe *, |
| 494 | struct usbd_xfer *); |
| 495 | static usbd_status slhci_halt(struct slhci_softc *, struct slhci_pipe *, |
| 496 | struct usbd_xfer *); |
| 497 | |
| 498 | static void slhci_intrchange(struct slhci_softc *, uint8_t); |
| 499 | static void slhci_drain(struct slhci_softc *); |
| 500 | static void slhci_reset(struct slhci_softc *); |
| 501 | static int slhci_reserve_bustime(struct slhci_softc *, struct slhci_pipe *, |
| 502 | int); |
| 503 | static void slhci_insert(struct slhci_softc *); |
| 504 | |
| 505 | static usbd_status slhci_clear_feature(struct slhci_softc *, unsigned int); |
| 506 | static usbd_status slhci_set_feature(struct slhci_softc *, unsigned int); |
| 507 | static void slhci_get_status(struct slhci_softc *, usb_port_status_t *); |
| 508 | |
| 509 | #define SLHCIHIST_FUNC() USBHIST_FUNC() |
| 510 | #define SLHCIHIST_CALLED() USBHIST_CALLED(slhcidebug) |
| 511 | |
| 512 | #ifdef SLHCI_DEBUG |
| 513 | static int slhci_memtest(struct slhci_softc *); |
| 514 | |
| 515 | void slhci_log_buffer(struct usbd_xfer *); |
| 516 | void slhci_log_req(usb_device_request_t *); |
| 517 | void slhci_log_dumpreg(void); |
| 518 | void slhci_log_xfer(struct usbd_xfer *); |
| 519 | void slhci_log_spipe(struct slhci_pipe *); |
| 520 | void slhci_print_intr(void); |
| 521 | void slhci_log_sc(void); |
| 522 | void slhci_log_slreq(struct slhci_pipe *); |
| 523 | |
| 524 | /* Constified so you can read the values from ddb */ |
| 525 | const int SLHCI_D_TRACE = 0x0001; |
| 526 | const int SLHCI_D_MSG = 0x0002; |
| 527 | const int SLHCI_D_XFER = 0x0004; |
| 528 | const int SLHCI_D_MEM = 0x0008; |
| 529 | const int SLHCI_D_INTR = 0x0010; |
| 530 | const int SLHCI_D_SXFER = 0x0020; |
| 531 | const int SLHCI_D_ERR = 0x0080; |
| 532 | const int SLHCI_D_BUF = 0x0100; |
| 533 | const int SLHCI_D_SOFT = 0x0200; |
| 534 | const int SLHCI_D_WAIT = 0x0400; |
| 535 | const int SLHCI_D_ROOT = 0x0800; |
| 536 | /* SOF/NAK alone normally ignored, SOF also needs D_INTR */ |
| 537 | const int SLHCI_D_SOF = 0x1000; |
| 538 | const int SLHCI_D_NAK = 0x2000; |
| 539 | |
| 540 | int slhcidebug = 0x1cbc; /* 0xc8c; */ /* 0xffff; */ /* 0xd8c; */ |
| 541 | |
| 542 | SYSCTL_SETUP(sysctl_hw_slhci_setup, "sysctl hw.slhci setup" ) |
| 543 | { |
| 544 | int err; |
| 545 | const struct sysctlnode *rnode; |
| 546 | const struct sysctlnode *cnode; |
| 547 | |
| 548 | err = sysctl_createv(clog, 0, NULL, &rnode, |
| 549 | CTLFLAG_PERMANENT, CTLTYPE_NODE, "slhci" , |
| 550 | SYSCTL_DESCR("slhci global controls" ), |
| 551 | NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); |
| 552 | |
| 553 | if (err) |
| 554 | goto fail; |
| 555 | |
| 556 | /* control debugging printfs */ |
| 557 | err = sysctl_createv(clog, 0, &rnode, &cnode, |
| 558 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, |
| 559 | "debug" , SYSCTL_DESCR("Enable debugging output" ), |
| 560 | NULL, 0, &slhcidebug, sizeof(slhcidebug), CTL_CREATE, CTL_EOL); |
| 561 | if (err) |
| 562 | goto fail; |
| 563 | |
| 564 | return; |
| 565 | fail: |
| 566 | aprint_error("%s: sysctl_createv failed (err = %d)\n" , __func__, err); |
| 567 | } |
| 568 | |
| 569 | struct slhci_softc *ssc; |
| 570 | |
| 571 | #define SLHCI_DEXEC(x, y) do { if ((slhcidebug & SLHCI_ ## x)) { y; } \ |
| 572 | } while (/*CONSTCOND*/ 0) |
| 573 | #define DDOLOG(f, a, b, c, d) do { KERNHIST_LOG(usbhist, f, a, b, c, d); \ |
| 574 | } while (/*CONSTCOND*/0) |
| 575 | #define DLOG(x, f, a, b, c, d) SLHCI_DEXEC(x, DDOLOG(f, a, b, c, d)) |
| 576 | |
| 577 | /* |
| 578 | * DDOLOGBUF logs a buffer up to 8 bytes at a time. No identifier so that we |
| 579 | * can make it a real function. |
| 580 | */ |
| 581 | static void |
| 582 | DDOLOGBUF(uint8_t *buf, unsigned int length) |
| 583 | { |
| 584 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 585 | int i; |
| 586 | |
| 587 | for(i=0; i+8 <= length; i+=8) |
| 588 | DDOLOG("%.4x %.4x %.4x %.4x" , (buf[i] << 8) | buf[i+1], |
| 589 | (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], |
| 590 | (buf[i+6] << 8) | buf[i+7]); |
| 591 | if (length == i+7) |
| 592 | DDOLOG("%.4x %.4x %.4x %.2x" , (buf[i] << 8) | buf[i+1], |
| 593 | (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], |
| 594 | buf[i+6]); |
| 595 | else if (length == i+6) |
| 596 | DDOLOG("%.4x %.4x %.4x" , (buf[i] << 8) | buf[i+1], |
| 597 | (buf[i+2] << 8) | buf[i+3], (buf[i+4] << 8) | buf[i+5], 0); |
| 598 | else if (length == i+5) |
| 599 | DDOLOG("%.4x %.4x %.2x" , (buf[i] << 8) | buf[i+1], |
| 600 | (buf[i+2] << 8) | buf[i+3], buf[i+4], 0); |
| 601 | else if (length == i+4) |
| 602 | DDOLOG("%.4x %.4x" , (buf[i] << 8) | buf[i+1], |
| 603 | (buf[i+2] << 8) | buf[i+3], 0,0); |
| 604 | else if (length == i+3) |
| 605 | DDOLOG("%.4x %.2x" , (buf[i] << 8) | buf[i+1], buf[i+2], 0,0); |
| 606 | else if (length == i+2) |
| 607 | DDOLOG("%.4x" , (buf[i] << 8) | buf[i+1], 0,0,0); |
| 608 | else if (length == i+1) |
| 609 | DDOLOG("%.2x" , buf[i], 0,0,0); |
| 610 | } |
| 611 | #define DLOGBUF(x, b, l) SLHCI_DEXEC(x, DDOLOGBUF(b, l)) |
| 612 | |
| 613 | #define DDOLOGCTRL(x) do { \ |
| 614 | DDOLOG("CTRL suspend=%d", !!((x) & SL11_CTRL_SUSPEND), 0, 0, 0); \ |
| 615 | DDOLOG("CTRL ls =%d jk =%d reset =%d sof =%d", \ |
| 616 | !!((x) & SL11_CTRL_LOWSPEED), !!((x) & SL11_CTRL_JKSTATE), \ |
| 617 | !!((x) & SL11_CTRL_RESETENGINE), !!((x) & SL11_CTRL_ENABLESOF));\ |
| 618 | } while (0) |
| 619 | |
| 620 | #define DDOLOGISR(r) do { \ |
| 621 | DDOLOG("ISR data =%d det/res=%d insert =%d sof =%d", \ |
| 622 | !!((r) & SL11_ISR_DATA), !!((r) & SL11_ISR_RESUME), \ |
| 623 | !!((r) & SL11_ISR_INSERT), !!!!((r) & SL11_ISR_SOF)); \ |
| 624 | DDOLOG("ISR babble =%d usbb =%d usba =%d", \ |
| 625 | !!((r) & SL11_ISR_BABBLE), !!((r) & SL11_ISR_USBB), \ |
| 626 | !!((r) & SL11_ISR_USBA), 0); \ |
| 627 | } while (0) |
| 628 | |
| 629 | #define DDOLOGIER(r) do { \ |
| 630 | DDOLOG("IER det/res=%d insert =%d sof =%d", \ |
| 631 | !!((r) & SL11_IER_RESUME), \ |
| 632 | !!((r) & SL11_IER_INSERT), !!!!((r) & SL11_IER_SOF), 0); \ |
| 633 | DDOLOG("IER babble =%d usbb =%d usba =%d", \ |
| 634 | !!((r) & SL11_IER_BABBLE), !!((r) & SL11_IER_USBB), \ |
| 635 | !!((r) & SL11_IER_USBA), 0); \ |
| 636 | } while (0) |
| 637 | |
| 638 | #define DDOLOGSTATUS(s) do { \ |
| 639 | DDOLOG("STAT stall =%d nak =%d overflow =%d setup =%d", \ |
| 640 | !!((s) & SL11_EPSTAT_STALL), !!((s) & SL11_EPSTAT_NAK), \ |
| 641 | !!((s) & SL11_EPSTAT_OVERFLOW), !!((s) & SL11_EPSTAT_SETUP)); \ |
| 642 | DDOLOG("STAT sequence=%d timeout =%d error =%d ack =%d", \ |
| 643 | !!((s) & SL11_EPSTAT_SEQUENCE), !!((s) & SL11_EPSTAT_TIMEOUT), \ |
| 644 | !!((s) & SL11_EPSTAT_ERROR), !!((s) & SL11_EPSTAT_ACK)); \ |
| 645 | } while (0) |
| 646 | |
| 647 | #define DDOLOGEPCTRL(r) do { \ |
| 648 | DDOLOG("CTRL preamble=%d toggle =%d sof =%d iso =%d", \ |
| 649 | !!((r) & SL11_EPCTRL_PREAMBLE), !!((r) & SL11_EPCTRL_DATATOGGLE),\ |
| 650 | !!((r) & SL11_EPCTRL_SOF), !!((r) & SL11_EPCTRL_ISO)); \ |
| 651 | DDOLOG("CTRL out =%d enable =%d arm =%d", \ |
| 652 | !!((r) & SL11_EPCTRL_DIRECTION), \ |
| 653 | !!((r) & SL11_EPCTRL_ENABLE), !!((r) & SL11_EPCTRL_ARM), 0); \ |
| 654 | } while (0) |
| 655 | |
| 656 | #define DDOLOGEPSTAT(r) do { \ |
| 657 | DDOLOG("STAT stall =%d nak =%d overflow =%d setup =%d", \ |
| 658 | !!((r) & SL11_EPSTAT_STALL), !!((r) & SL11_EPSTAT_NAK), \ |
| 659 | !!((r) & SL11_EPSTAT_OVERFLOW), !!((r) & SL11_EPSTAT_SETUP)); \ |
| 660 | DDOLOG("STAT sequence=%d timeout =%d error =%d ack =%d", \ |
| 661 | !!((r) & SL11_EPSTAT_SEQUENCE), !!((r) & SL11_EPSTAT_TIMEOUT), \ |
| 662 | !!((r) & SL11_EPSTAT_ERROR), !!((r) & SL11_EPSTAT_ACK)); \ |
| 663 | } while (0) |
| 664 | #else /* now !SLHCI_DEBUG */ |
| 665 | #define slhcidebug 0 |
| 666 | #define slhci_log_spipe(spipe) ((void)0) |
| 667 | #define slhci_log_xfer(xfer) ((void)0) |
| 668 | #define SLHCI_DEXEC(x, y) ((void)0) |
| 669 | #define DDOLOG(f, a, b, c, d) ((void)0) |
| 670 | #define DLOG(x, f, a, b, c, d) ((void)0) |
| 671 | #define DDOLOGBUF(b, l) ((void)0) |
| 672 | #define DLOGBUF(x, b, l) ((void)0) |
| 673 | #define DDOLOGCTRL(x) ((void)0) |
| 674 | #define DDOLOGISR(r) ((void)0) |
| 675 | #define DDOLOGIER(r) ((void)0) |
| 676 | #define DDOLOGSTATUS(s) ((void)0) |
| 677 | #define DDOLOGEPCTRL(r) ((void)0) |
| 678 | #define DDOLOGEPSTAT(r) ((void)0) |
| 679 | #endif /* SLHCI_DEBUG */ |
| 680 | |
| 681 | #ifdef DIAGNOSTIC |
| 682 | #define LK_SLASSERT(exp, sc, spipe, xfer, ext) do { \ |
| 683 | if (!(exp)) { \ |
| 684 | printf("%s: assertion %s failed line %u function %s!" \ |
| 685 | " halted\n", SC_NAME(sc), #exp, __LINE__, __func__);\ |
| 686 | slhci_halt(sc, spipe, xfer); \ |
| 687 | ext; \ |
| 688 | } \ |
| 689 | } while (/*CONSTCOND*/0) |
| 690 | #define UL_SLASSERT(exp, sc, spipe, xfer, ext) do { \ |
| 691 | if (!(exp)) { \ |
| 692 | printf("%s: assertion %s failed line %u function %s!" \ |
| 693 | " halted\n", SC_NAME(sc), #exp, __LINE__, __func__); \ |
| 694 | slhci_lock_call(sc, &slhci_halt, spipe, xfer); \ |
| 695 | ext; \ |
| 696 | } \ |
| 697 | } while (/*CONSTCOND*/0) |
| 698 | #else |
| 699 | #define LK_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) |
| 700 | #define UL_SLASSERT(exp, sc, spipe, xfer, ext) ((void)0) |
| 701 | #endif |
| 702 | |
| 703 | const struct usbd_bus_methods slhci_bus_methods = { |
| 704 | .ubm_open = slhci_open, |
| 705 | .ubm_softint= slhci_void, |
| 706 | .ubm_dopoll = slhci_poll, |
| 707 | .ubm_allocx = slhci_allocx, |
| 708 | .ubm_freex = slhci_freex, |
| 709 | .ubm_getlock = slhci_get_lock, |
| 710 | .ubm_rhctrl = slhci_roothub_ctrl, |
| 711 | }; |
| 712 | |
| 713 | const struct usbd_pipe_methods slhci_pipe_methods = { |
| 714 | .upm_transfer = slhci_transfer, |
| 715 | .upm_start = slhci_start, |
| 716 | .upm_abort = slhci_abort, |
| 717 | .upm_close = slhci_close, |
| 718 | .upm_cleartoggle = slhci_clear_toggle, |
| 719 | .upm_done = slhci_done, |
| 720 | }; |
| 721 | |
| 722 | const struct usbd_pipe_methods slhci_root_methods = { |
| 723 | .upm_transfer = slhci_transfer, |
| 724 | .upm_start = slhci_root_start, |
| 725 | .upm_abort = slhci_abort, |
| 726 | .upm_close = (void (*)(struct usbd_pipe *))slhci_void, /* XXX safe? */ |
| 727 | .upm_cleartoggle = slhci_clear_toggle, |
| 728 | .upm_done = slhci_done, |
| 729 | }; |
| 730 | |
| 731 | /* Queue inlines */ |
| 732 | |
| 733 | #define GOT_FIRST_TO(tvar, t) \ |
| 734 | GCQ_GOT_FIRST_TYPED(tvar, &(t)->to, struct slhci_pipe, to) |
| 735 | |
| 736 | #define FIND_TO(var, t, tvar, cond) \ |
| 737 | GCQ_FIND_TYPED(var, &(t)->to, tvar, struct slhci_pipe, to, cond) |
| 738 | |
| 739 | #define FOREACH_AP(var, t, tvar) \ |
| 740 | GCQ_FOREACH_TYPED(var, &(t)->ap, tvar, struct slhci_pipe, ap) |
| 741 | |
| 742 | #define GOT_FIRST_TIMED_COND(tvar, t, cond) \ |
| 743 | GCQ_GOT_FIRST_COND_TYPED(tvar, &(t)->timed, struct slhci_pipe, xq, cond) |
| 744 | |
| 745 | #define GOT_FIRST_CB(tvar, t) \ |
| 746 | GCQ_GOT_FIRST_TYPED(tvar, &(t)->q[Q_CB], struct slhci_pipe, xq) |
| 747 | |
| 748 | #define DEQUEUED_CALLBACK(tvar, t) \ |
| 749 | GCQ_DEQUEUED_FIRST_TYPED(tvar, &(t)->q[Q_CALLBACKS], struct slhci_pipe, xq) |
| 750 | |
| 751 | #define FIND_TIMED(var, t, tvar, cond) \ |
| 752 | GCQ_FIND_TYPED(var, &(t)->timed, tvar, struct slhci_pipe, xq, cond) |
| 753 | |
| 754 | #define DEQUEUED_WAITQ(tvar, sc) \ |
| 755 | GCQ_DEQUEUED_FIRST_TYPED(tvar, &(sc)->sc_waitq, struct slhci_pipe, xq) |
| 756 | |
| 757 | static inline void |
| 758 | enter_waitq(struct slhci_softc *sc, struct slhci_pipe *spipe) |
| 759 | { |
| 760 | gcq_insert_tail(&sc->sc_waitq, &spipe->xq); |
| 761 | } |
| 762 | |
| 763 | static inline void |
| 764 | enter_q(struct slhci_transfers *t, struct slhci_pipe *spipe, int i) |
| 765 | { |
| 766 | gcq_insert_tail(&t->q[i], &spipe->xq); |
| 767 | } |
| 768 | |
| 769 | static inline void |
| 770 | enter_callback(struct slhci_transfers *t, struct slhci_pipe *spipe) |
| 771 | { |
| 772 | gcq_insert_tail(&t->q[Q_CALLBACKS], &spipe->xq); |
| 773 | } |
| 774 | |
| 775 | static inline void |
| 776 | enter_all_pipes(struct slhci_transfers *t, struct slhci_pipe *spipe) |
| 777 | { |
| 778 | gcq_insert_tail(&t->ap, &spipe->ap); |
| 779 | } |
| 780 | |
| 781 | /* Start out of lock functions. */ |
| 782 | |
| 783 | struct usbd_xfer * |
| 784 | slhci_allocx(struct usbd_bus *bus, unsigned int nframes) |
| 785 | { |
| 786 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 787 | struct usbd_xfer *xfer; |
| 788 | |
| 789 | xfer = kmem_zalloc(sizeof(*xfer), KM_SLEEP); |
| 790 | |
| 791 | DLOG(D_MEM, "allocx %p" , xfer, 0,0,0); |
| 792 | |
| 793 | #ifdef SLHCI_MEM_ACCOUNTING |
| 794 | slhci_mem_use(bus, 1); |
| 795 | #endif |
| 796 | #ifdef DIAGNOSTIC |
| 797 | if (xfer != NULL) |
| 798 | xfer->ux_state = XFER_BUSY; |
| 799 | #endif |
| 800 | return xfer; |
| 801 | } |
| 802 | |
| 803 | void |
| 804 | slhci_freex(struct usbd_bus *bus, struct usbd_xfer *xfer) |
| 805 | { |
| 806 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 807 | DLOG(D_MEM, "freex xfer %p spipe %p" , xfer, xfer->ux_pipe,0,0); |
| 808 | |
| 809 | #ifdef SLHCI_MEM_ACCOUNTING |
| 810 | slhci_mem_use(bus, -1); |
| 811 | #endif |
| 812 | #ifdef DIAGNOSTIC |
| 813 | if (xfer->ux_state != XFER_BUSY) { |
| 814 | struct slhci_softc *sc = SLHCI_BUS2SC(bus); |
| 815 | printf("%s: slhci_freex: xfer=%p not busy, %#08x halted\n" , |
| 816 | SC_NAME(sc), xfer, xfer->ux_state); |
| 817 | DDOLOG("xfer=%p not busy, %#08x halted\n" , xfer, |
| 818 | xfer->ux_state, 0, 0); |
| 819 | slhci_lock_call(sc, &slhci_halt, NULL, NULL); |
| 820 | return; |
| 821 | } |
| 822 | xfer->ux_state = XFER_FREE; |
| 823 | #endif |
| 824 | |
| 825 | kmem_free(xfer, sizeof(*xfer)); |
| 826 | } |
| 827 | |
| 828 | static void |
| 829 | slhci_get_lock(struct usbd_bus *bus, kmutex_t **lock) |
| 830 | { |
| 831 | struct slhci_softc *sc = SLHCI_BUS2SC(bus); |
| 832 | |
| 833 | *lock = &sc->sc_lock; |
| 834 | } |
| 835 | |
| 836 | usbd_status |
| 837 | slhci_transfer(struct usbd_xfer *xfer) |
| 838 | { |
| 839 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 840 | struct slhci_softc *sc = SLHCI_XFER2SC(xfer); |
| 841 | usbd_status error; |
| 842 | |
| 843 | DLOG(D_TRACE, "transfer type %d xfer %p spipe %p " , |
| 844 | SLHCI_XFER_TYPE(xfer), xfer, xfer->ux_pipe, 0); |
| 845 | |
| 846 | /* Insert last in queue */ |
| 847 | mutex_enter(&sc->sc_lock); |
| 848 | error = usb_insert_transfer(xfer); |
| 849 | mutex_exit(&sc->sc_lock); |
| 850 | if (error) { |
| 851 | if (error != USBD_IN_PROGRESS) |
| 852 | DLOG(D_ERR, "usb_insert_transfer returns %d!" , error, |
| 853 | 0,0,0); |
| 854 | return error; |
| 855 | } |
| 856 | |
| 857 | /* |
| 858 | * Pipe isn't running (otherwise error would be USBD_INPROG), |
| 859 | * so start it first. |
| 860 | */ |
| 861 | |
| 862 | /* |
| 863 | * Start will take the lock. |
| 864 | */ |
| 865 | error = xfer->ux_pipe->up_methods->upm_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); |
| 866 | |
| 867 | return error; |
| 868 | } |
| 869 | |
| 870 | /* It is not safe for start to return anything other than USBD_INPROG. */ |
| 871 | usbd_status |
| 872 | slhci_start(struct usbd_xfer *xfer) |
| 873 | { |
| 874 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 875 | struct slhci_softc *sc = SLHCI_XFER2SC(xfer); |
| 876 | struct usbd_pipe *pipe = xfer->ux_pipe; |
| 877 | struct slhci_pipe *spipe = SLHCI_PIPE2SPIPE(pipe); |
| 878 | struct slhci_transfers *t = &sc->sc_transfers; |
| 879 | usb_endpoint_descriptor_t *ed = pipe->up_endpoint->ue_edesc; |
| 880 | unsigned int max_packet; |
| 881 | |
| 882 | mutex_enter(&sc->sc_lock); |
| 883 | |
| 884 | max_packet = UGETW(ed->wMaxPacketSize); |
| 885 | |
| 886 | DLOG(D_TRACE, "transfer type %d start xfer %p spipe %p length %d" , |
| 887 | spipe->ptype, xfer, spipe, xfer->ux_length); |
| 888 | |
| 889 | /* root transfers use slhci_root_start */ |
| 890 | |
| 891 | KASSERT(spipe->xfer == NULL); /* not SLASSERT */ |
| 892 | |
| 893 | xfer->ux_actlen = 0; |
| 894 | xfer->ux_status = USBD_IN_PROGRESS; |
| 895 | |
| 896 | spipe->xfer = xfer; |
| 897 | |
| 898 | spipe->nerrs = 0; |
| 899 | spipe->frame = t->frame; |
| 900 | spipe->control = SL11_EPCTRL_ARM_ENABLE; |
| 901 | spipe->tregs[DEV] = pipe->up_dev->ud_addr; |
| 902 | spipe->tregs[PID] = spipe->newpid = UE_GET_ADDR(ed->bEndpointAddress) |
| 903 | | (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? SL11_PID_IN : |
| 904 | SL11_PID_OUT); |
| 905 | spipe->newlen[0] = xfer->ux_length % max_packet; |
| 906 | spipe->newlen[1] = min(xfer->ux_length, max_packet); |
| 907 | |
| 908 | if (spipe->ptype == PT_BULK || spipe->ptype == PT_INTR) { |
| 909 | if (spipe->pflags & PF_TOGGLE) |
| 910 | spipe->control |= SL11_EPCTRL_DATATOGGLE; |
| 911 | spipe->tregs[LEN] = spipe->newlen[1]; |
| 912 | if (spipe->tregs[LEN]) |
| 913 | spipe->buffer = xfer->ux_buf; |
| 914 | else |
| 915 | spipe->buffer = NULL; |
| 916 | spipe->lastframe = t->frame; |
| 917 | if (spipe->ptype == PT_INTR) { |
| 918 | spipe->frame = spipe->lastframe + |
| 919 | spipe->pipe.up_interval; |
| 920 | } |
| 921 | |
| 922 | #if defined(DEBUG) || defined(SLHCI_DEBUG) |
| 923 | if (__predict_false(spipe->ptype == PT_INTR && |
| 924 | xfer->ux_length > spipe->tregs[LEN])) { |
| 925 | printf("%s: Long INTR transfer not supported!\n" , |
| 926 | SC_NAME(sc)); |
| 927 | DDOLOG("Long INTR transfer not supported!" , 0, 0, 0, 0); |
| 928 | xfer->ux_status = USBD_INVAL; |
| 929 | } |
| 930 | #endif |
| 931 | } else { |
| 932 | /* ptype may be currently set to any control transfer type. */ |
| 933 | SLHCI_DEXEC(D_TRACE, slhci_log_xfer(xfer)); |
| 934 | |
| 935 | /* SETUP contains IN/OUT bits also */ |
| 936 | spipe->tregs[PID] |= SL11_PID_SETUP; |
| 937 | spipe->tregs[LEN] = 8; |
| 938 | spipe->buffer = (uint8_t *)&xfer->ux_request; |
| 939 | DLOGBUF(D_XFER, spipe->buffer, spipe->tregs[LEN]); |
| 940 | spipe->ptype = PT_CTRL_SETUP; |
| 941 | spipe->newpid &= ~SL11_PID_BITS; |
| 942 | if (xfer->ux_length == 0 || |
| 943 | (xfer->ux_request.bmRequestType & UT_READ)) |
| 944 | spipe->newpid |= SL11_PID_IN; |
| 945 | else |
| 946 | spipe->newpid |= SL11_PID_OUT; |
| 947 | } |
| 948 | |
| 949 | if (xfer->ux_flags & USBD_FORCE_SHORT_XFER && |
| 950 | spipe->tregs[LEN] == max_packet && |
| 951 | (spipe->newpid & SL11_PID_BITS) == SL11_PID_OUT) |
| 952 | spipe->wantshort = 1; |
| 953 | else |
| 954 | spipe->wantshort = 0; |
| 955 | |
| 956 | /* |
| 957 | * The goal of newbustime and newlen is to avoid bustime calculation |
| 958 | * in the interrupt. The calculations are not too complex, but they |
| 959 | * complicate the conditional logic somewhat and doing them all in the |
| 960 | * same place shares constants. Index 0 is "short length" for bulk and |
| 961 | * ctrl data and 1 is "full length" for ctrl data (bulk/intr are |
| 962 | * already set to full length). |
| 963 | */ |
| 964 | if (spipe->pflags & PF_LS) { |
| 965 | /* |
| 966 | * Setting PREAMBLE for directly connected LS devices will |
| 967 | * lock up the chip. |
| 968 | */ |
| 969 | if (spipe->pflags & PF_PREAMBLE) |
| 970 | spipe->control |= SL11_EPCTRL_PREAMBLE; |
| 971 | if (max_packet <= 8) { |
| 972 | spipe->bustime = SLHCI_LS_CONST + |
| 973 | SLHCI_LS_DATA_TIME(spipe->tregs[LEN]); |
| 974 | spipe->newbustime[0] = SLHCI_LS_CONST + |
| 975 | SLHCI_LS_DATA_TIME(spipe->newlen[0]); |
| 976 | spipe->newbustime[1] = SLHCI_LS_CONST + |
| 977 | SLHCI_LS_DATA_TIME(spipe->newlen[1]); |
| 978 | } else |
| 979 | xfer->ux_status = USBD_INVAL; |
| 980 | } else { |
| 981 | UL_SLASSERT(pipe->up_dev->ud_speed == USB_SPEED_FULL, sc, |
| 982 | spipe, xfer, return USBD_IN_PROGRESS); |
| 983 | if (max_packet <= SL11_MAX_PACKET_SIZE) { |
| 984 | spipe->bustime = SLHCI_FS_CONST + |
| 985 | SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); |
| 986 | spipe->newbustime[0] = SLHCI_FS_CONST + |
| 987 | SLHCI_FS_DATA_TIME(spipe->newlen[0]); |
| 988 | spipe->newbustime[1] = SLHCI_FS_CONST + |
| 989 | SLHCI_FS_DATA_TIME(spipe->newlen[1]); |
| 990 | } else |
| 991 | xfer->ux_status = USBD_INVAL; |
| 992 | } |
| 993 | |
| 994 | /* |
| 995 | * The datasheet incorrectly indicates that DIRECTION is for |
| 996 | * "transmit to host". It is for OUT and SETUP. The app note |
| 997 | * describes its use correctly. |
| 998 | */ |
| 999 | if ((spipe->tregs[PID] & SL11_PID_BITS) != SL11_PID_IN) |
| 1000 | spipe->control |= SL11_EPCTRL_DIRECTION; |
| 1001 | |
| 1002 | slhci_start_entry(sc, spipe); |
| 1003 | |
| 1004 | mutex_exit(&sc->sc_lock); |
| 1005 | |
| 1006 | return USBD_IN_PROGRESS; |
| 1007 | } |
| 1008 | |
| 1009 | usbd_status |
| 1010 | slhci_root_start(struct usbd_xfer *xfer) |
| 1011 | { |
| 1012 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1013 | struct slhci_softc *sc; |
| 1014 | struct slhci_pipe *spipe __diagused; |
| 1015 | |
| 1016 | spipe = SLHCI_PIPE2SPIPE(xfer->ux_pipe); |
| 1017 | sc = SLHCI_XFER2SC(xfer); |
| 1018 | |
| 1019 | struct slhci_transfers *t = &sc->sc_transfers; |
| 1020 | |
| 1021 | LK_SLASSERT(spipe != NULL && xfer != NULL, sc, spipe, xfer, return |
| 1022 | USBD_CANCELLED); |
| 1023 | |
| 1024 | DLOG(D_TRACE, "transfer type %d start" , SLHCI_XFER_TYPE(xfer), 0, 0, 0); |
| 1025 | |
| 1026 | KASSERT(spipe->ptype == PT_ROOT_INTR); |
| 1027 | |
| 1028 | mutex_enter(&sc->sc_intr_lock); |
| 1029 | t->rootintr = xfer; |
| 1030 | mutex_exit(&sc->sc_intr_lock); |
| 1031 | |
| 1032 | return USBD_IN_PROGRESS; |
| 1033 | } |
| 1034 | |
| 1035 | usbd_status |
| 1036 | slhci_open(struct usbd_pipe *pipe) |
| 1037 | { |
| 1038 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1039 | struct usbd_device *dev; |
| 1040 | struct slhci_softc *sc; |
| 1041 | struct slhci_pipe *spipe; |
| 1042 | usb_endpoint_descriptor_t *ed; |
| 1043 | unsigned int max_packet, pmaxpkt; |
| 1044 | uint8_t rhaddr; |
| 1045 | |
| 1046 | dev = pipe->up_dev; |
| 1047 | sc = SLHCI_PIPE2SC(pipe); |
| 1048 | spipe = SLHCI_PIPE2SPIPE(pipe); |
| 1049 | ed = pipe->up_endpoint->ue_edesc; |
| 1050 | rhaddr = dev->ud_bus->ub_rhaddr; |
| 1051 | |
| 1052 | DLOG(D_TRACE, "slhci_open(addr=%d,ep=%d,rootaddr=%d)" , |
| 1053 | dev->ud_addr, ed->bEndpointAddress, rhaddr, 0); |
| 1054 | |
| 1055 | spipe->pflags = 0; |
| 1056 | spipe->frame = 0; |
| 1057 | spipe->lastframe = 0; |
| 1058 | spipe->xfer = NULL; |
| 1059 | spipe->buffer = NULL; |
| 1060 | |
| 1061 | gcq_init(&spipe->ap); |
| 1062 | gcq_init(&spipe->to); |
| 1063 | gcq_init(&spipe->xq); |
| 1064 | |
| 1065 | /* |
| 1066 | * The endpoint descriptor will not have been set up yet in the case |
| 1067 | * of the standard control pipe, so the max packet checks are also |
| 1068 | * necessary in start. |
| 1069 | */ |
| 1070 | |
| 1071 | max_packet = UGETW(ed->wMaxPacketSize); |
| 1072 | |
| 1073 | if (dev->ud_speed == USB_SPEED_LOW) { |
| 1074 | spipe->pflags |= PF_LS; |
| 1075 | if (dev->ud_myhub->ud_addr != rhaddr) { |
| 1076 | spipe->pflags |= PF_PREAMBLE; |
| 1077 | if (!slhci_try_lsvh) |
| 1078 | return slhci_lock_call(sc, &slhci_lsvh_warn, |
| 1079 | spipe, NULL); |
| 1080 | } |
| 1081 | pmaxpkt = 8; |
| 1082 | } else |
| 1083 | pmaxpkt = SL11_MAX_PACKET_SIZE; |
| 1084 | |
| 1085 | if (max_packet > pmaxpkt) { |
| 1086 | DLOG(D_ERR, "packet too large! size %d spipe %p" , max_packet, |
| 1087 | spipe, 0,0); |
| 1088 | return USBD_INVAL; |
| 1089 | } |
| 1090 | |
| 1091 | if (dev->ud_addr == rhaddr) { |
| 1092 | switch (ed->bEndpointAddress) { |
| 1093 | case USB_CONTROL_ENDPOINT: |
| 1094 | spipe->ptype = PT_ROOT_CTRL; |
| 1095 | pipe->up_interval = 0; |
| 1096 | pipe->up_methods = &roothub_ctrl_methods; |
| 1097 | break; |
| 1098 | case UE_DIR_IN | USBROOTHUB_INTR_ENDPT: |
| 1099 | spipe->ptype = PT_ROOT_INTR; |
| 1100 | pipe->up_interval = 1; |
| 1101 | pipe->up_methods = &slhci_root_methods; |
| 1102 | break; |
| 1103 | default: |
| 1104 | printf("%s: Invalid root endpoint!\n" , SC_NAME(sc)); |
| 1105 | DDOLOG("Invalid root endpoint" , 0, 0, 0, 0); |
| 1106 | return USBD_INVAL; |
| 1107 | } |
| 1108 | return USBD_NORMAL_COMPLETION; |
| 1109 | } else { |
| 1110 | switch (ed->bmAttributes & UE_XFERTYPE) { |
| 1111 | case UE_CONTROL: |
| 1112 | spipe->ptype = PT_CTRL_SETUP; |
| 1113 | pipe->up_interval = 0; |
| 1114 | break; |
| 1115 | case UE_INTERRUPT: |
| 1116 | spipe->ptype = PT_INTR; |
| 1117 | if (pipe->up_interval == USBD_DEFAULT_INTERVAL) |
| 1118 | pipe->up_interval = ed->bInterval; |
| 1119 | break; |
| 1120 | case UE_ISOCHRONOUS: |
| 1121 | return slhci_lock_call(sc, &slhci_isoc_warn, spipe, |
| 1122 | NULL); |
| 1123 | case UE_BULK: |
| 1124 | spipe->ptype = PT_BULK; |
| 1125 | pipe->up_interval = 0; |
| 1126 | break; |
| 1127 | } |
| 1128 | |
| 1129 | DLOG(D_MSG, "open pipe type %d interval %d" , spipe->ptype, |
| 1130 | pipe->up_interval, 0,0); |
| 1131 | |
| 1132 | pipe->up_methods = __UNCONST(&slhci_pipe_methods); |
| 1133 | |
| 1134 | return slhci_lock_call(sc, &slhci_open_pipe, spipe, NULL); |
| 1135 | } |
| 1136 | } |
| 1137 | |
| 1138 | int |
| 1139 | slhci_supported_rev(uint8_t rev) |
| 1140 | { |
| 1141 | return rev >= SLTYPE_SL811HS_R12 && rev <= SLTYPE_SL811HS_R15; |
| 1142 | } |
| 1143 | |
| 1144 | /* |
| 1145 | * Must be called before the ISR is registered. Interrupts can be shared so |
| 1146 | * slhci_intr could be called as soon as the ISR is registered. |
| 1147 | * Note max_current argument is actual current, but stored as current/2 |
| 1148 | */ |
| 1149 | void |
| 1150 | slhci_preinit(struct slhci_softc *sc, PowerFunc pow, bus_space_tag_t iot, |
| 1151 | bus_space_handle_t ioh, uint16_t max_current, uint32_t stride) |
| 1152 | { |
| 1153 | struct slhci_transfers *t; |
| 1154 | int i; |
| 1155 | |
| 1156 | t = &sc->sc_transfers; |
| 1157 | |
| 1158 | #ifdef SLHCI_DEBUG |
| 1159 | ssc = sc; |
| 1160 | #endif |
| 1161 | |
| 1162 | mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SOFTUSB); |
| 1163 | mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_USB); |
| 1164 | |
| 1165 | /* sc->sc_ier = 0; */ |
| 1166 | /* t->rootintr = NULL; */ |
| 1167 | t->flags = F_NODEV|F_UDISABLED; |
| 1168 | t->pend = INT_MAX; |
| 1169 | KASSERT(slhci_wait_time != INT_MAX); |
| 1170 | t->len[0] = t->len[1] = -1; |
| 1171 | if (max_current > 500) |
| 1172 | max_current = 500; |
| 1173 | t->max_current = (uint8_t)(max_current / 2); |
| 1174 | sc->sc_enable_power = pow; |
| 1175 | sc->sc_iot = iot; |
| 1176 | sc->sc_ioh = ioh; |
| 1177 | sc->sc_stride = stride; |
| 1178 | |
| 1179 | KASSERT(Q_MAX+1 == sizeof(t->q) / sizeof(t->q[0])); |
| 1180 | |
| 1181 | for (i = 0; i <= Q_MAX; i++) |
| 1182 | gcq_init_head(&t->q[i]); |
| 1183 | gcq_init_head(&t->timed); |
| 1184 | gcq_init_head(&t->to); |
| 1185 | gcq_init_head(&t->ap); |
| 1186 | gcq_init_head(&sc->sc_waitq); |
| 1187 | } |
| 1188 | |
| 1189 | int |
| 1190 | slhci_attach(struct slhci_softc *sc) |
| 1191 | { |
| 1192 | struct slhci_transfers *t; |
| 1193 | const char *rev; |
| 1194 | |
| 1195 | t = &sc->sc_transfers; |
| 1196 | |
| 1197 | /* Detect and check the controller type */ |
| 1198 | t->sltype = SL11_GET_REV(slhci_read(sc, SL11_REV)); |
| 1199 | |
| 1200 | /* SL11H not supported */ |
| 1201 | if (!slhci_supported_rev(t->sltype)) { |
| 1202 | if (t->sltype == SLTYPE_SL11H) |
| 1203 | printf("%s: SL11H unsupported or bus error!\n" , |
| 1204 | SC_NAME(sc)); |
| 1205 | else |
| 1206 | printf("%s: Unknown chip revision!\n" , SC_NAME(sc)); |
| 1207 | return -1; |
| 1208 | } |
| 1209 | |
| 1210 | #ifdef SLHCI_DEBUG |
| 1211 | if (slhci_memtest(sc)) { |
| 1212 | printf("%s: memory/bus error!\n" , SC_NAME(sc)); |
| 1213 | return -1; |
| 1214 | } |
| 1215 | #endif |
| 1216 | |
| 1217 | callout_init(&sc->sc_timer, CALLOUT_MPSAFE); |
| 1218 | callout_setfunc(&sc->sc_timer, slhci_reset_entry, sc); |
| 1219 | |
| 1220 | /* |
| 1221 | * It is not safe to call the soft interrupt directly as |
| 1222 | * usb_schedsoftintr does in the ub_usepolling case (due to locking). |
| 1223 | */ |
| 1224 | sc->sc_cb_softintr = softint_establish(SOFTINT_NET, |
| 1225 | slhci_callback_entry, sc); |
| 1226 | |
| 1227 | if (t->sltype == SLTYPE_SL811HS_R12) |
| 1228 | rev = "(rev 1.2)" ; |
| 1229 | else if (t->sltype == SLTYPE_SL811HS_R14) |
| 1230 | rev = "(rev 1.4 or 1.5)" ; |
| 1231 | else |
| 1232 | rev = "(unknown revision)" ; |
| 1233 | |
| 1234 | aprint_normal("%s: ScanLogic SL811HS/T USB Host Controller %s\n" , |
| 1235 | SC_NAME(sc), rev); |
| 1236 | |
| 1237 | aprint_normal("%s: Max Current %u mA (value by code, not by probe)\n" , |
| 1238 | SC_NAME(sc), t->max_current * 2); |
| 1239 | |
| 1240 | #if defined(SLHCI_DEBUG) || defined(SLHCI_NO_OVERTIME) || \ |
| 1241 | defined(SLHCI_TRY_LSVH) || defined(SLHCI_PROFILE_TRANSFER) |
| 1242 | aprint_normal("%s: driver options:" |
| 1243 | #ifdef SLHCI_DEBUG |
| 1244 | " SLHCI_DEBUG" |
| 1245 | #endif |
| 1246 | #ifdef SLHCI_TRY_LSVH |
| 1247 | " SLHCI_TRY_LSVH" |
| 1248 | #endif |
| 1249 | #ifdef SLHCI_NO_OVERTIME |
| 1250 | " SLHCI_NO_OVERTIME" |
| 1251 | #endif |
| 1252 | #ifdef SLHCI_PROFILE_TRANSFER |
| 1253 | " SLHCI_PROFILE_TRANSFER" |
| 1254 | #endif |
| 1255 | "\n" , SC_NAME(sc)); |
| 1256 | #endif |
| 1257 | sc->sc_bus.ub_revision = USBREV_1_1; |
| 1258 | sc->sc_bus.ub_methods = __UNCONST(&slhci_bus_methods); |
| 1259 | sc->sc_bus.ub_pipesize = sizeof(struct slhci_pipe); |
| 1260 | sc->sc_bus.ub_usedma = false; |
| 1261 | |
| 1262 | if (!sc->sc_enable_power) |
| 1263 | t->flags |= F_REALPOWER; |
| 1264 | |
| 1265 | t->flags |= F_ACTIVE; |
| 1266 | |
| 1267 | /* Attach usb and uhub. */ |
| 1268 | sc->sc_child = config_found(SC_DEV(sc), &sc->sc_bus, usbctlprint); |
| 1269 | |
| 1270 | if (!sc->sc_child) |
| 1271 | return -1; |
| 1272 | else |
| 1273 | return 0; |
| 1274 | } |
| 1275 | |
| 1276 | int |
| 1277 | slhci_detach(struct slhci_softc *sc, int flags) |
| 1278 | { |
| 1279 | struct slhci_transfers *t; |
| 1280 | int ret; |
| 1281 | |
| 1282 | t = &sc->sc_transfers; |
| 1283 | |
| 1284 | /* By this point bus access is no longer allowed. */ |
| 1285 | |
| 1286 | KASSERT(!(t->flags & F_ACTIVE)); |
| 1287 | |
| 1288 | /* |
| 1289 | * To be MPSAFE is not sufficient to cancel callouts and soft |
| 1290 | * interrupts and assume they are dead since the code could already be |
| 1291 | * running or about to run. Wait until they are known to be done. |
| 1292 | */ |
| 1293 | while (t->flags & (F_RESET|F_CALLBACK)) |
| 1294 | tsleep(&sc, PPAUSE, "slhci_detach" , hz); |
| 1295 | |
| 1296 | softint_disestablish(sc->sc_cb_softintr); |
| 1297 | |
| 1298 | mutex_destroy(&sc->sc_lock); |
| 1299 | mutex_destroy(&sc->sc_intr_lock); |
| 1300 | |
| 1301 | ret = 0; |
| 1302 | |
| 1303 | if (sc->sc_child) |
| 1304 | ret = config_detach(sc->sc_child, flags); |
| 1305 | |
| 1306 | #ifdef SLHCI_MEM_ACCOUNTING |
| 1307 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1308 | if (sc->sc_mem_use) { |
| 1309 | printf("%s: Memory still in use after detach! mem_use (count)" |
| 1310 | " = %d\n" , SC_NAME(sc), sc->sc_mem_use); |
| 1311 | DDOLOG("Memory still in use after detach! mem_use (count)" |
| 1312 | " = %d" , sc->sc_mem_use, 0, 0, 0); |
| 1313 | } |
| 1314 | #endif |
| 1315 | |
| 1316 | return ret; |
| 1317 | } |
| 1318 | |
| 1319 | int |
| 1320 | slhci_activate(device_t self, enum devact act) |
| 1321 | { |
| 1322 | struct slhci_softc *sc = device_private(self); |
| 1323 | |
| 1324 | switch (act) { |
| 1325 | case DVACT_DEACTIVATE: |
| 1326 | slhci_lock_call(sc, &slhci_halt, NULL, NULL); |
| 1327 | return 0; |
| 1328 | default: |
| 1329 | return EOPNOTSUPP; |
| 1330 | } |
| 1331 | } |
| 1332 | |
| 1333 | void |
| 1334 | slhci_abort(struct usbd_xfer *xfer) |
| 1335 | { |
| 1336 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1337 | struct slhci_softc *sc; |
| 1338 | struct slhci_pipe *spipe; |
| 1339 | |
| 1340 | spipe = SLHCI_PIPE2SPIPE(xfer->ux_pipe); |
| 1341 | |
| 1342 | if (spipe == NULL) |
| 1343 | goto callback; |
| 1344 | |
| 1345 | sc = SLHCI_XFER2SC(xfer); |
| 1346 | KASSERT(mutex_owned(&sc->sc_lock)); |
| 1347 | |
| 1348 | DLOG(D_TRACE, "transfer type %d abort xfer %p spipe %p spipe->xfer %p" , |
| 1349 | spipe->ptype, xfer, spipe, spipe->xfer); |
| 1350 | |
| 1351 | slhci_lock_call(sc, &slhci_do_abort, spipe, xfer); |
| 1352 | |
| 1353 | callback: |
| 1354 | xfer->ux_status = USBD_CANCELLED; |
| 1355 | usb_transfer_complete(xfer); |
| 1356 | } |
| 1357 | |
| 1358 | void |
| 1359 | slhci_close(struct usbd_pipe *pipe) |
| 1360 | { |
| 1361 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1362 | struct slhci_softc *sc; |
| 1363 | struct slhci_pipe *spipe; |
| 1364 | |
| 1365 | sc = SLHCI_PIPE2SC(pipe); |
| 1366 | spipe = SLHCI_PIPE2SPIPE(pipe); |
| 1367 | |
| 1368 | DLOG(D_TRACE, "transfer type %d close spipe %p spipe->xfer %p" , |
| 1369 | spipe->ptype, spipe, spipe->xfer, 0); |
| 1370 | |
| 1371 | slhci_lock_call(sc, &slhci_close_pipe, spipe, NULL); |
| 1372 | } |
| 1373 | |
| 1374 | void |
| 1375 | slhci_clear_toggle(struct usbd_pipe *pipe) |
| 1376 | { |
| 1377 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1378 | struct slhci_pipe *spipe; |
| 1379 | |
| 1380 | spipe = SLHCI_PIPE2SPIPE(pipe); |
| 1381 | |
| 1382 | DLOG(D_TRACE, "transfer type %d toggle spipe %p" , spipe->ptype, |
| 1383 | spipe,0,0); |
| 1384 | |
| 1385 | spipe->pflags &= ~PF_TOGGLE; |
| 1386 | |
| 1387 | #ifdef DIAGNOSTIC |
| 1388 | if (spipe->xfer != NULL) { |
| 1389 | struct slhci_softc *sc = (struct slhci_softc |
| 1390 | *)pipe->up_dev->ud_bus; |
| 1391 | |
| 1392 | printf("%s: Clear toggle on transfer in progress! halted\n" , |
| 1393 | SC_NAME(sc)); |
| 1394 | DDOLOG("Clear toggle on transfer in progress! halted" , |
| 1395 | 0, 0, 0, 0); |
| 1396 | slhci_halt(sc, NULL, NULL); |
| 1397 | } |
| 1398 | #endif |
| 1399 | } |
| 1400 | |
| 1401 | void |
| 1402 | slhci_poll(struct usbd_bus *bus) /* XXX necessary? */ |
| 1403 | { |
| 1404 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1405 | struct slhci_softc *sc; |
| 1406 | |
| 1407 | sc = SLHCI_BUS2SC(bus); |
| 1408 | |
| 1409 | DLOG(D_TRACE, "slhci_poll" , 0,0,0,0); |
| 1410 | |
| 1411 | slhci_lock_call(sc, &slhci_do_poll, NULL, NULL); |
| 1412 | } |
| 1413 | |
| 1414 | void |
| 1415 | slhci_done(struct usbd_xfer *xfer) |
| 1416 | { |
| 1417 | } |
| 1418 | |
| 1419 | void |
| 1420 | slhci_void(void *v) {} |
| 1421 | |
| 1422 | /* End out of lock functions. Start lock entry functions. */ |
| 1423 | |
| 1424 | #ifdef SLHCI_MEM_ACCOUNTING |
| 1425 | void |
| 1426 | slhci_mem_use(struct usbd_bus *bus, int val) |
| 1427 | { |
| 1428 | struct slhci_softc *sc = SLHCI_BUS2SC(bus); |
| 1429 | |
| 1430 | mutex_enter(&sc->sc_intr_lock); |
| 1431 | sc->sc_mem_use += val; |
| 1432 | mutex_exit(&sc->sc_intr_lock); |
| 1433 | } |
| 1434 | #endif |
| 1435 | |
| 1436 | void |
| 1437 | slhci_reset_entry(void *arg) |
| 1438 | { |
| 1439 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1440 | struct slhci_softc *sc = arg; |
| 1441 | |
| 1442 | mutex_enter(&sc->sc_intr_lock); |
| 1443 | slhci_reset(sc); |
| 1444 | /* |
| 1445 | * We cannot call the callback directly since we could then be reset |
| 1446 | * again before finishing and need the callout delay for timing. |
| 1447 | * Scheduling the callout again before we exit would defeat the reap |
| 1448 | * mechanism since we could be unlocked while the reset flag is not |
| 1449 | * set. The callback code will check the wait queue. |
| 1450 | */ |
| 1451 | slhci_callback_schedule(sc); |
| 1452 | mutex_exit(&sc->sc_intr_lock); |
| 1453 | } |
| 1454 | |
| 1455 | usbd_status |
| 1456 | slhci_lock_call(struct slhci_softc *sc, LockCallFunc lcf, struct slhci_pipe |
| 1457 | *spipe, struct usbd_xfer *xfer) |
| 1458 | { |
| 1459 | usbd_status ret; |
| 1460 | |
| 1461 | mutex_enter(&sc->sc_intr_lock); |
| 1462 | ret = (*lcf)(sc, spipe, xfer); |
| 1463 | slhci_main(sc); |
| 1464 | mutex_exit(&sc->sc_intr_lock); |
| 1465 | |
| 1466 | return ret; |
| 1467 | } |
| 1468 | |
| 1469 | void |
| 1470 | slhci_start_entry(struct slhci_softc *sc, struct slhci_pipe *spipe) |
| 1471 | { |
| 1472 | struct slhci_transfers *t; |
| 1473 | |
| 1474 | mutex_enter(&sc->sc_intr_lock); |
| 1475 | t = &sc->sc_transfers; |
| 1476 | |
| 1477 | if (!(t->flags & (F_AINPROG|F_BINPROG))) { |
| 1478 | slhci_enter_xfer(sc, spipe); |
| 1479 | slhci_dotransfer(sc); |
| 1480 | slhci_main(sc); |
| 1481 | } else { |
| 1482 | enter_waitq(sc, spipe); |
| 1483 | } |
| 1484 | mutex_exit(&sc->sc_intr_lock); |
| 1485 | } |
| 1486 | |
| 1487 | void |
| 1488 | slhci_callback_entry(void *arg) |
| 1489 | { |
| 1490 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1491 | struct slhci_softc *sc; |
| 1492 | struct slhci_transfers *t; |
| 1493 | |
| 1494 | sc = (struct slhci_softc *)arg; |
| 1495 | |
| 1496 | mutex_enter(&sc->sc_intr_lock); |
| 1497 | t = &sc->sc_transfers; |
| 1498 | DLOG(D_SOFT, "callback_entry flags %#x" , t->flags, 0,0,0); |
| 1499 | |
| 1500 | repeat: |
| 1501 | slhci_callback(sc); |
| 1502 | |
| 1503 | if (!gcq_empty(&sc->sc_waitq)) { |
| 1504 | slhci_enter_xfers(sc); |
| 1505 | slhci_dotransfer(sc); |
| 1506 | slhci_waitintr(sc, 0); |
| 1507 | goto repeat; |
| 1508 | } |
| 1509 | |
| 1510 | t->flags &= ~F_CALLBACK; |
| 1511 | mutex_exit(&sc->sc_intr_lock); |
| 1512 | } |
| 1513 | |
| 1514 | void |
| 1515 | slhci_do_callback(struct slhci_softc *sc, struct usbd_xfer *xfer) |
| 1516 | { |
| 1517 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1518 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 1519 | |
| 1520 | start_cc_time(&t_callback, (u_int)xfer); |
| 1521 | mutex_exit(&sc->sc_intr_lock); |
| 1522 | |
| 1523 | mutex_enter(&sc->sc_lock); |
| 1524 | usb_transfer_complete(xfer); |
| 1525 | mutex_exit(&sc->sc_lock); |
| 1526 | |
| 1527 | mutex_enter(&sc->sc_intr_lock); |
| 1528 | stop_cc_time(&t_callback); |
| 1529 | } |
| 1530 | |
| 1531 | int |
| 1532 | slhci_intr(void *arg) |
| 1533 | { |
| 1534 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1535 | struct slhci_softc *sc = arg; |
| 1536 | int ret = 0; |
| 1537 | int irq; |
| 1538 | |
| 1539 | start_cc_time(&t_hard_int, (unsigned int)arg); |
| 1540 | mutex_enter(&sc->sc_intr_lock); |
| 1541 | |
| 1542 | do { |
| 1543 | irq = slhci_dointr(sc); |
| 1544 | ret |= irq; |
| 1545 | slhci_main(sc); |
| 1546 | } while (irq); |
| 1547 | mutex_exit(&sc->sc_intr_lock); |
| 1548 | |
| 1549 | stop_cc_time(&t_hard_int); |
| 1550 | return ret; |
| 1551 | } |
| 1552 | |
| 1553 | /* called with interrupt lock only held. */ |
| 1554 | void |
| 1555 | slhci_main(struct slhci_softc *sc) |
| 1556 | { |
| 1557 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1558 | struct slhci_transfers *t; |
| 1559 | |
| 1560 | t = &sc->sc_transfers; |
| 1561 | |
| 1562 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 1563 | |
| 1564 | waitcheck: |
| 1565 | slhci_waitintr(sc, slhci_wait_time); |
| 1566 | |
| 1567 | /* |
| 1568 | * The direct call is needed in the ub_usepolling and disabled cases |
| 1569 | * since the soft interrupt is not available. In the disabled case, |
| 1570 | * this code can be reached from the usb detach, after the reaping of |
| 1571 | * the soft interrupt. That test could be !F_ACTIVE, but there is no |
| 1572 | * reason not to make the callbacks directly in the other DISABLED |
| 1573 | * cases. |
| 1574 | */ |
| 1575 | if ((t->flags & F_ROOTINTR) || !gcq_empty(&t->q[Q_CALLBACKS])) { |
| 1576 | if (__predict_false(sc->sc_bus.ub_usepolling || |
| 1577 | t->flags & F_DISABLED)) |
| 1578 | slhci_callback(sc); |
| 1579 | else |
| 1580 | slhci_callback_schedule(sc); |
| 1581 | } |
| 1582 | |
| 1583 | if (!gcq_empty(&sc->sc_waitq)) { |
| 1584 | slhci_enter_xfers(sc); |
| 1585 | slhci_dotransfer(sc); |
| 1586 | goto waitcheck; |
| 1587 | } |
| 1588 | DLOG(D_INTR, "... done" , 0, 0, 0, 0); |
| 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_READ|BUS_SPACE_BARRIER_WRITE) |
| 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 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1744 | struct slhci_transfers *t; |
| 1745 | |
| 1746 | t = &sc->sc_transfers; |
| 1747 | |
| 1748 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 1749 | |
| 1750 | if (__predict_false(sc->sc_bus.ub_usepolling)) |
| 1751 | wait_time = 12000; |
| 1752 | |
| 1753 | while (t->pend <= wait_time) { |
| 1754 | DLOG(D_WAIT, "waiting... frame %d pend %d flags %#x" , |
| 1755 | t->frame, t->pend, t->flags, 0); |
| 1756 | LK_SLASSERT(t->flags & F_ACTIVE, sc, NULL, NULL, return); |
| 1757 | LK_SLASSERT(t->flags & (F_AINPROG|F_BINPROG), sc, NULL, NULL, |
| 1758 | return); |
| 1759 | slhci_dointr(sc); |
| 1760 | } |
| 1761 | DLOG(D_WAIT, "... done" , 0, 0, 0, 0); |
| 1762 | } |
| 1763 | |
| 1764 | static int |
| 1765 | slhci_dointr(struct slhci_softc *sc) |
| 1766 | { |
| 1767 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1768 | struct slhci_transfers *t; |
| 1769 | struct slhci_pipe *tosp; |
| 1770 | uint8_t r; |
| 1771 | |
| 1772 | t = &sc->sc_transfers; |
| 1773 | |
| 1774 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 1775 | |
| 1776 | if (sc->sc_ier == 0) { |
| 1777 | DLOG(D_INTR, "sc_ier is zero" , 0, 0, 0, 0); |
| 1778 | return 0; |
| 1779 | } |
| 1780 | |
| 1781 | r = slhci_read(sc, SL11_ISR); |
| 1782 | |
| 1783 | #ifdef SLHCI_DEBUG |
| 1784 | if (slhcidebug & SLHCI_D_INTR && r & sc->sc_ier && |
| 1785 | ((r & ~(SL11_ISR_SOF|SL11_ISR_DATA)) || slhcidebug & SLHCI_D_SOF)) { |
| 1786 | uint8_t e, f; |
| 1787 | |
| 1788 | e = slhci_read(sc, SL11_IER); |
| 1789 | f = slhci_read(sc, SL11_CTRL); |
| 1790 | DDOLOG("Flags=%#x IER=%#x ISR=%#x CTRL=%#x" , t->flags, e, r, f); |
| 1791 | DDOLOGCTRL(f); |
| 1792 | DDOLOGISR(r); |
| 1793 | } |
| 1794 | #endif |
| 1795 | |
| 1796 | /* |
| 1797 | * check IER for corruption occasionally. Assume that the above |
| 1798 | * sc_ier == 0 case works correctly. |
| 1799 | */ |
| 1800 | if (__predict_false(sc->sc_ier_check++ > SLHCI_IER_CHECK_FREQUENCY)) { |
| 1801 | sc->sc_ier_check = 0; |
| 1802 | if (sc->sc_ier != slhci_read(sc, SL11_IER)) { |
| 1803 | printf("%s: IER value corrupted! halted\n" , |
| 1804 | SC_NAME(sc)); |
| 1805 | DDOLOG("IER value corrupted! halted" , 0, 0, 0, 0); |
| 1806 | slhci_halt(sc, NULL, NULL); |
| 1807 | return 1; |
| 1808 | } |
| 1809 | } |
| 1810 | |
| 1811 | r &= sc->sc_ier; |
| 1812 | |
| 1813 | if (r == 0) { |
| 1814 | DLOG(D_INTR, "r is zero" , 0, 0, 0, 0); |
| 1815 | return 0; |
| 1816 | } |
| 1817 | |
| 1818 | sc->sc_ier_check = 0; |
| 1819 | |
| 1820 | slhci_write(sc, SL11_ISR, r); |
| 1821 | BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); |
| 1822 | |
| 1823 | /* If we have an insertion event we do not care about anything else. */ |
| 1824 | if (__predict_false(r & SL11_ISR_INSERT)) { |
| 1825 | slhci_insert(sc); |
| 1826 | DLOG(D_INTR, "... done" , 0, 0, 0, 0); |
| 1827 | return 1; |
| 1828 | } |
| 1829 | |
| 1830 | stop_cc_time(&t_intr); |
| 1831 | start_cc_time(&t_intr, r); |
| 1832 | |
| 1833 | if (r & SL11_ISR_SOF) { |
| 1834 | t->frame++; |
| 1835 | |
| 1836 | gcq_merge_tail(&t->q[Q_CB], &t->q[Q_NEXT_CB]); |
| 1837 | |
| 1838 | /* |
| 1839 | * SOFCHECK flags are cleared in tstart. Two flags are needed |
| 1840 | * since the first SOF interrupt processed after the transfer |
| 1841 | * is started might have been generated before the transfer |
| 1842 | * was started. |
| 1843 | */ |
| 1844 | if (__predict_false(t->flags & F_SOFCHECK2 && t->flags & |
| 1845 | (F_AINPROG|F_BINPROG))) { |
| 1846 | printf("%s: Missed transfer completion. halted\n" , |
| 1847 | SC_NAME(sc)); |
| 1848 | DDOLOG("Missed transfer completion. halted" , 0, 0, 0, |
| 1849 | 0); |
| 1850 | slhci_halt(sc, NULL, NULL); |
| 1851 | return 1; |
| 1852 | } else if (t->flags & F_SOFCHECK1) { |
| 1853 | t->flags |= F_SOFCHECK2; |
| 1854 | } else |
| 1855 | t->flags |= F_SOFCHECK1; |
| 1856 | |
| 1857 | if (t->flags & F_CHANGE) |
| 1858 | t->flags |= F_ROOTINTR; |
| 1859 | |
| 1860 | while (__predict_true(GOT_FIRST_TO(tosp, t)) && |
| 1861 | __predict_false(tosp->to_frame <= t->frame)) { |
| 1862 | tosp->xfer->ux_status = USBD_TIMEOUT; |
| 1863 | slhci_do_abort(sc, tosp, tosp->xfer); |
| 1864 | enter_callback(t, tosp); |
| 1865 | } |
| 1866 | |
| 1867 | /* |
| 1868 | * Start any waiting transfers right away. If none, we will |
| 1869 | * start any new transfers later. |
| 1870 | */ |
| 1871 | slhci_tstart(sc); |
| 1872 | } |
| 1873 | |
| 1874 | if (r & (SL11_ISR_USBA|SL11_ISR_USBB)) { |
| 1875 | int ab; |
| 1876 | |
| 1877 | if ((r & (SL11_ISR_USBA|SL11_ISR_USBB)) == |
| 1878 | (SL11_ISR_USBA|SL11_ISR_USBB)) { |
| 1879 | if (!(t->flags & (F_AINPROG|F_BINPROG))) |
| 1880 | return 1; /* presume card pulled */ |
| 1881 | |
| 1882 | LK_SLASSERT((t->flags & (F_AINPROG|F_BINPROG)) != |
| 1883 | (F_AINPROG|F_BINPROG), sc, NULL, NULL, return 1); |
| 1884 | |
| 1885 | /* |
| 1886 | * This should never happen (unless card removal just |
| 1887 | * occurred) but appeared frequently when both |
| 1888 | * transfers were started at the same time and was |
| 1889 | * accompanied by data corruption. It still happens |
| 1890 | * at times. I have not seen data correption except |
| 1891 | * when the STATUS bit gets set, which now causes the |
| 1892 | * driver to halt, however this should still not |
| 1893 | * happen so the warning is kept. See comment in |
| 1894 | * abdone, below. |
| 1895 | */ |
| 1896 | printf("%s: Transfer reported done but not started! " |
| 1897 | "Verify data integrity if not detaching. " |
| 1898 | " flags %#x r %x\n" , SC_NAME(sc), t->flags, r); |
| 1899 | |
| 1900 | if (!(t->flags & F_AINPROG)) |
| 1901 | r &= ~SL11_ISR_USBA; |
| 1902 | else |
| 1903 | r &= ~SL11_ISR_USBB; |
| 1904 | } |
| 1905 | t->pend = INT_MAX; |
| 1906 | |
| 1907 | if (r & SL11_ISR_USBA) |
| 1908 | ab = A; |
| 1909 | else |
| 1910 | ab = B; |
| 1911 | |
| 1912 | /* |
| 1913 | * This happens when a low speed device is attached to |
| 1914 | * a hub with chip rev 1.5. SOF stops, but a few transfers |
| 1915 | * still work before causing this error. |
| 1916 | */ |
| 1917 | if (!(t->flags & (ab ? F_BINPROG : F_AINPROG))) { |
| 1918 | printf("%s: %s done but not in progress! halted\n" , |
| 1919 | SC_NAME(sc), ab ? "B" : "A" ); |
| 1920 | DDOLOG("AB=%d done but not in progress! halted" , ab, |
| 1921 | 0, 0, 0); |
| 1922 | slhci_halt(sc, NULL, NULL); |
| 1923 | return 1; |
| 1924 | } |
| 1925 | |
| 1926 | t->flags &= ~(ab ? F_BINPROG : F_AINPROG); |
| 1927 | slhci_tstart(sc); |
| 1928 | stop_cc_time(&t_ab[ab]); |
| 1929 | start_cc_time(&t_abdone, t->flags); |
| 1930 | slhci_abdone(sc, ab); |
| 1931 | stop_cc_time(&t_abdone); |
| 1932 | } |
| 1933 | |
| 1934 | slhci_dotransfer(sc); |
| 1935 | |
| 1936 | DLOG(D_INTR, "... done" , 0, 0, 0, 0); |
| 1937 | |
| 1938 | return 1; |
| 1939 | } |
| 1940 | |
| 1941 | static void |
| 1942 | slhci_abdone(struct slhci_softc *sc, int ab) |
| 1943 | { |
| 1944 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 1945 | struct slhci_transfers *t; |
| 1946 | struct slhci_pipe *spipe; |
| 1947 | struct usbd_xfer *xfer; |
| 1948 | uint8_t status, buf_start; |
| 1949 | uint8_t *target_buf; |
| 1950 | unsigned int actlen; |
| 1951 | int head; |
| 1952 | |
| 1953 | t = &sc->sc_transfers; |
| 1954 | |
| 1955 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 1956 | |
| 1957 | DLOG(D_TRACE, "ABDONE flags %#x" , t->flags, 0,0,0); |
| 1958 | |
| 1959 | DLOG(D_MSG, "DONE AB=%d spipe %p len %d xfer %p" , ab, t->spipe[ab], |
| 1960 | t->len[ab], t->spipe[ab] ? t->spipe[ab]->xfer : NULL); |
| 1961 | |
| 1962 | spipe = t->spipe[ab]; |
| 1963 | |
| 1964 | /* |
| 1965 | * skip this one if aborted; do not call return from the rest of the |
| 1966 | * function unless halting, else t->len will not be cleared. |
| 1967 | */ |
| 1968 | if (spipe == NULL) |
| 1969 | goto done; |
| 1970 | |
| 1971 | t->spipe[ab] = NULL; |
| 1972 | |
| 1973 | xfer = spipe->xfer; |
| 1974 | |
| 1975 | gcq_remove(&spipe->to); |
| 1976 | |
| 1977 | LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); |
| 1978 | |
| 1979 | status = slhci_read(sc, slhci_tregs[ab][STAT]); |
| 1980 | |
| 1981 | /* |
| 1982 | * I saw no status or remaining length greater than the requested |
| 1983 | * length in early driver versions in circumstances I assumed caused |
| 1984 | * excess power draw. I am no longer able to reproduce this when |
| 1985 | * causing excess power draw circumstances. |
| 1986 | * |
| 1987 | * Disabling a power check and attaching aue to a keyboard and hub |
| 1988 | * that is directly attached (to CFU1U, 100mA max, aue 160mA, keyboard |
| 1989 | * 98mA) sometimes works and sometimes fails to configure. After |
| 1990 | * removing the aue and attaching a self-powered umass dvd reader |
| 1991 | * (unknown if it draws power from the host also) soon a single Error |
| 1992 | * status occurs then only timeouts. The controller soon halts freeing |
| 1993 | * memory due to being ONQU instead of BUSY. This may be the same |
| 1994 | * basic sequence that caused the no status/bad length errors. The |
| 1995 | * umass device seems to work (better at least) with the keyboard hub |
| 1996 | * when not first attaching aue (tested once reading an approximately |
| 1997 | * 200MB file). |
| 1998 | * |
| 1999 | * Overflow can indicate that the device and host disagree about how |
| 2000 | * much data has been transfered. This may indicate a problem at any |
| 2001 | * point during the transfer, not just when the error occurs. It may |
| 2002 | * indicate data corruption. A warning message is printed. |
| 2003 | * |
| 2004 | * Trying to use both A and B transfers at the same time results in |
| 2005 | * incorrect transfer completion ISR reports and the status will then |
| 2006 | * include SL11_EPSTAT_SETUP, which is apparently set while the |
| 2007 | * transfer is in progress. I also noticed data corruption, even |
| 2008 | * after waiting for the transfer to complete. The driver now avoids |
| 2009 | * trying to start both at the same time. |
| 2010 | * |
| 2011 | * I had accidently initialized the B registers before they were valid |
| 2012 | * in some driver versions. Since every other performance enhancing |
| 2013 | * feature has been confirmed buggy in the errata doc, I have not |
| 2014 | * tried both transfers at once again with the documented |
| 2015 | * initialization order. |
| 2016 | * |
| 2017 | * However, I have seen this problem again ("done but not started" |
| 2018 | * errors), which in some cases cases the SETUP status bit to remain |
| 2019 | * set on future transfers. In other cases, the SETUP bit is not set |
| 2020 | * and no data corruption occurs. This occured while using both umass |
| 2021 | * and aue on a powered hub (maybe triggered by some local activity |
| 2022 | * also) and needs several reads of the 200MB file to trigger. The |
| 2023 | * driver now halts if SETUP is detected. |
| 2024 | */ |
| 2025 | |
| 2026 | actlen = 0; |
| 2027 | |
| 2028 | if (__predict_false(!status)) { |
| 2029 | DDOLOG("no status! xfer %p spipe %p" , xfer, spipe, 0,0); |
| 2030 | printf("%s: no status! halted\n" , SC_NAME(sc)); |
| 2031 | slhci_halt(sc, spipe, xfer); |
| 2032 | return; |
| 2033 | } |
| 2034 | |
| 2035 | #ifdef SLHCI_DEBUG |
| 2036 | if ((slhcidebug & SLHCI_D_NAK) || |
| 2037 | (status & SL11_EPSTAT_ERRBITS) != SL11_EPSTAT_NAK) { |
| 2038 | DDOLOG("USB Status = %#.2x" , status, 0, 0, 0); |
| 2039 | DDOLOGSTATUS(status); |
| 2040 | } |
| 2041 | #endif |
| 2042 | |
| 2043 | if (!(status & SL11_EPSTAT_ERRBITS)) { |
| 2044 | unsigned int cont = slhci_read(sc, slhci_tregs[ab][CONT]); |
| 2045 | unsigned int len = spipe->tregs[LEN]; |
| 2046 | DLOG(D_XFER, "cont %d len %d" , cont, len, 0, 0); |
| 2047 | if ((status & SL11_EPSTAT_OVERFLOW) || cont > len) { |
| 2048 | DDOLOG("overflow - cont %d len %d xfer->ux_length %d " |
| 2049 | "xfer->actlen %d" , cont, len, xfer->ux_length, |
| 2050 | xfer->ux_actlen); |
| 2051 | printf("%s: overflow cont %d len %d xfer->ux_length" |
| 2052 | " %d xfer->ux_actlen %d\n" , SC_NAME(sc), cont, |
| 2053 | len, xfer->ux_length, xfer->ux_actlen); |
| 2054 | actlen = len; |
| 2055 | } else { |
| 2056 | actlen = len - cont; |
| 2057 | } |
| 2058 | spipe->nerrs = 0; |
| 2059 | } |
| 2060 | |
| 2061 | /* Actual copyin done after starting next transfer. */ |
| 2062 | if (actlen && (spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) { |
| 2063 | target_buf = spipe->buffer; |
| 2064 | buf_start = spipe->tregs[ADR]; |
| 2065 | } else { |
| 2066 | target_buf = NULL; |
| 2067 | buf_start = 0; /* XXX gcc uninitialized warnings */ |
| 2068 | } |
| 2069 | |
| 2070 | if (status & SL11_EPSTAT_ERRBITS) { |
| 2071 | status &= SL11_EPSTAT_ERRBITS; |
| 2072 | if (status & SL11_EPSTAT_SETUP) { |
| 2073 | printf("%s: Invalid controller state detected! " |
| 2074 | "halted\n" , SC_NAME(sc)); |
| 2075 | DDOLOG("Invalid controller state detected! " |
| 2076 | "halted" , 0, 0, 0, 0); |
| 2077 | slhci_halt(sc, spipe, xfer); |
| 2078 | return; |
| 2079 | } else if (__predict_false(sc->sc_bus.ub_usepolling)) { |
| 2080 | head = Q_CALLBACKS; |
| 2081 | if (status & SL11_EPSTAT_STALL) |
| 2082 | xfer->ux_status = USBD_STALLED; |
| 2083 | else if (status & SL11_EPSTAT_TIMEOUT) |
| 2084 | xfer->ux_status = USBD_TIMEOUT; |
| 2085 | else if (status & SL11_EPSTAT_NAK) |
| 2086 | head = Q_NEXT_CB; |
| 2087 | else |
| 2088 | xfer->ux_status = USBD_IOERROR; |
| 2089 | } else if (status & SL11_EPSTAT_NAK) { |
| 2090 | int i = spipe->pipe.up_interval; |
| 2091 | if (i == 0) |
| 2092 | i = 1; |
| 2093 | DDOLOG("xfer %p spipe %p NAK delay by %d" , xfer, spipe, |
| 2094 | i, 0); |
| 2095 | spipe->lastframe = spipe->frame = t->frame + i; |
| 2096 | slhci_queue_timed(sc, spipe); |
| 2097 | goto queued; |
| 2098 | } else if (++spipe->nerrs > SLHCI_MAX_RETRIES || |
| 2099 | (status & SL11_EPSTAT_STALL)) { |
| 2100 | DDOLOG("xfer %p spipe %p nerrs %d" , xfer, spipe, |
| 2101 | spipe->nerrs, 0); |
| 2102 | if (status & SL11_EPSTAT_STALL) |
| 2103 | xfer->ux_status = USBD_STALLED; |
| 2104 | else if (status & SL11_EPSTAT_TIMEOUT) |
| 2105 | xfer->ux_status = USBD_TIMEOUT; |
| 2106 | else |
| 2107 | xfer->ux_status = USBD_IOERROR; |
| 2108 | |
| 2109 | DLOG(D_ERR, "Max retries reached! status %#x " |
| 2110 | "xfer->ux_status %d" , status, xfer->ux_status, 0, |
| 2111 | 0); |
| 2112 | DDOLOGSTATUS(status); |
| 2113 | |
| 2114 | head = Q_CALLBACKS; |
| 2115 | } else { |
| 2116 | head = Q_NEXT_CB; |
| 2117 | } |
| 2118 | } else if (spipe->ptype == PT_CTRL_SETUP) { |
| 2119 | spipe->tregs[PID] = spipe->newpid; |
| 2120 | |
| 2121 | if (xfer->ux_length) { |
| 2122 | LK_SLASSERT(spipe->newlen[1] != 0, sc, spipe, xfer, |
| 2123 | return); |
| 2124 | spipe->tregs[LEN] = spipe->newlen[1]; |
| 2125 | spipe->bustime = spipe->newbustime[1]; |
| 2126 | spipe->buffer = xfer->ux_buf; |
| 2127 | spipe->ptype = PT_CTRL_DATA; |
| 2128 | } else { |
| 2129 | status_setup: |
| 2130 | /* CTRL_DATA swaps direction in PID then jumps here */ |
| 2131 | spipe->tregs[LEN] = 0; |
| 2132 | if (spipe->pflags & PF_LS) |
| 2133 | spipe->bustime = SLHCI_LS_CONST; |
| 2134 | else |
| 2135 | spipe->bustime = SLHCI_FS_CONST; |
| 2136 | spipe->ptype = PT_CTRL_STATUS; |
| 2137 | spipe->buffer = NULL; |
| 2138 | } |
| 2139 | |
| 2140 | /* Status or first data packet must be DATA1. */ |
| 2141 | spipe->control |= SL11_EPCTRL_DATATOGGLE; |
| 2142 | if ((spipe->tregs[PID] & SL11_PID_BITS) == SL11_PID_IN) |
| 2143 | spipe->control &= ~SL11_EPCTRL_DIRECTION; |
| 2144 | else |
| 2145 | spipe->control |= SL11_EPCTRL_DIRECTION; |
| 2146 | |
| 2147 | head = Q_CB; |
| 2148 | } else if (spipe->ptype == PT_CTRL_STATUS) { |
| 2149 | head = Q_CALLBACKS; |
| 2150 | } else { /* bulk, intr, control data */ |
| 2151 | xfer->ux_actlen += actlen; |
| 2152 | spipe->control ^= SL11_EPCTRL_DATATOGGLE; |
| 2153 | |
| 2154 | if (actlen == spipe->tregs[LEN] && |
| 2155 | (xfer->ux_length > xfer->ux_actlen || spipe->wantshort)) { |
| 2156 | spipe->buffer += actlen; |
| 2157 | LK_SLASSERT(xfer->ux_length >= xfer->ux_actlen, sc, |
| 2158 | spipe, xfer, return); |
| 2159 | if (xfer->ux_length - xfer->ux_actlen < actlen) { |
| 2160 | spipe->wantshort = 0; |
| 2161 | spipe->tregs[LEN] = spipe->newlen[0]; |
| 2162 | spipe->bustime = spipe->newbustime[0]; |
| 2163 | LK_SLASSERT(xfer->ux_actlen + |
| 2164 | spipe->tregs[LEN] == xfer->ux_length, sc, |
| 2165 | spipe, xfer, return); |
| 2166 | } |
| 2167 | head = Q_CB; |
| 2168 | } else if (spipe->ptype == PT_CTRL_DATA) { |
| 2169 | spipe->tregs[PID] ^= SLHCI_PID_SWAP_IN_OUT; |
| 2170 | goto status_setup; |
| 2171 | } else { |
| 2172 | if (spipe->ptype == PT_INTR) { |
| 2173 | spipe->lastframe += |
| 2174 | spipe->pipe.up_interval; |
| 2175 | /* |
| 2176 | * If ack, we try to keep the |
| 2177 | * interrupt rate by using lastframe |
| 2178 | * instead of the current frame. |
| 2179 | */ |
| 2180 | spipe->frame = spipe->lastframe + |
| 2181 | spipe->pipe.up_interval; |
| 2182 | } |
| 2183 | |
| 2184 | /* |
| 2185 | * Set the toggle for the next transfer. It |
| 2186 | * has already been toggled above, so the |
| 2187 | * current setting will apply to the next |
| 2188 | * transfer. |
| 2189 | */ |
| 2190 | if (spipe->control & SL11_EPCTRL_DATATOGGLE) |
| 2191 | spipe->pflags |= PF_TOGGLE; |
| 2192 | else |
| 2193 | spipe->pflags &= ~PF_TOGGLE; |
| 2194 | |
| 2195 | head = Q_CALLBACKS; |
| 2196 | } |
| 2197 | } |
| 2198 | |
| 2199 | if (head == Q_CALLBACKS) { |
| 2200 | gcq_remove(&spipe->to); |
| 2201 | |
| 2202 | if (xfer->ux_status == USBD_IN_PROGRESS) { |
| 2203 | LK_SLASSERT(xfer->ux_actlen <= xfer->ux_length, sc, |
| 2204 | spipe, xfer, return); |
| 2205 | xfer->ux_status = USBD_NORMAL_COMPLETION; |
| 2206 | } |
| 2207 | } |
| 2208 | |
| 2209 | enter_q(t, spipe, head); |
| 2210 | |
| 2211 | queued: |
| 2212 | if (target_buf != NULL) { |
| 2213 | slhci_dotransfer(sc); |
| 2214 | start_cc_time(&t_copy_from_dev, actlen); |
| 2215 | slhci_read_multi(sc, buf_start, target_buf, actlen); |
| 2216 | stop_cc_time(&t_copy_from_dev); |
| 2217 | DLOGBUF(D_BUF, target_buf, actlen); |
| 2218 | t->pend -= SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(actlen); |
| 2219 | } |
| 2220 | |
| 2221 | done: |
| 2222 | t->len[ab] = -1; |
| 2223 | } |
| 2224 | |
| 2225 | static void |
| 2226 | slhci_tstart(struct slhci_softc *sc) |
| 2227 | { |
| 2228 | struct slhci_transfers *t; |
| 2229 | struct slhci_pipe *spipe; |
| 2230 | int remaining_bustime; |
| 2231 | |
| 2232 | t = &sc->sc_transfers; |
| 2233 | |
| 2234 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2235 | |
| 2236 | if (!(t->flags & (F_AREADY|F_BREADY))) |
| 2237 | return; |
| 2238 | |
| 2239 | if (t->flags & (F_AINPROG|F_BINPROG|F_DISABLED)) |
| 2240 | return; |
| 2241 | |
| 2242 | /* |
| 2243 | * We have about 6 us to get from the bus time check to |
| 2244 | * starting the transfer or we might babble or the chip might fail to |
| 2245 | * signal transfer complete. This leaves no time for any other |
| 2246 | * interrupts. |
| 2247 | */ |
| 2248 | remaining_bustime = (int)(slhci_read(sc, SL811_CSOF)) << 6; |
| 2249 | remaining_bustime -= SLHCI_END_BUSTIME; |
| 2250 | |
| 2251 | /* |
| 2252 | * Start one transfer only, clearing any aborted transfers that are |
| 2253 | * not yet in progress and skipping missed isoc. It is easier to copy |
| 2254 | * & paste most of the A/B sections than to make the logic work |
| 2255 | * otherwise and this allows better constant use. |
| 2256 | */ |
| 2257 | if (t->flags & F_AREADY) { |
| 2258 | spipe = t->spipe[A]; |
| 2259 | if (spipe == NULL) { |
| 2260 | t->flags &= ~F_AREADY; |
| 2261 | t->len[A] = -1; |
| 2262 | } else if (remaining_bustime >= spipe->bustime) { |
| 2263 | t->flags &= ~(F_AREADY|F_SOFCHECK1|F_SOFCHECK2); |
| 2264 | t->flags |= F_AINPROG; |
| 2265 | start_cc_time(&t_ab[A], spipe->tregs[LEN]); |
| 2266 | slhci_write(sc, SL11_E0CTRL, spipe->control); |
| 2267 | goto pend; |
| 2268 | } |
| 2269 | } |
| 2270 | if (t->flags & F_BREADY) { |
| 2271 | spipe = t->spipe[B]; |
| 2272 | if (spipe == NULL) { |
| 2273 | t->flags &= ~F_BREADY; |
| 2274 | t->len[B] = -1; |
| 2275 | } else if (remaining_bustime >= spipe->bustime) { |
| 2276 | t->flags &= ~(F_BREADY|F_SOFCHECK1|F_SOFCHECK2); |
| 2277 | t->flags |= F_BINPROG; |
| 2278 | start_cc_time(&t_ab[B], spipe->tregs[LEN]); |
| 2279 | slhci_write(sc, SL11_E1CTRL, spipe->control); |
| 2280 | pend: |
| 2281 | t->pend = spipe->bustime; |
| 2282 | } |
| 2283 | } |
| 2284 | } |
| 2285 | |
| 2286 | static void |
| 2287 | slhci_dotransfer(struct slhci_softc *sc) |
| 2288 | { |
| 2289 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2290 | struct slhci_transfers *t; |
| 2291 | struct slhci_pipe *spipe; |
| 2292 | int ab, i; |
| 2293 | |
| 2294 | t = &sc->sc_transfers; |
| 2295 | |
| 2296 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2297 | |
| 2298 | while ((t->len[A] == -1 || t->len[B] == -1) && |
| 2299 | (GOT_FIRST_TIMED_COND(spipe, t, spipe->frame <= t->frame) || |
| 2300 | GOT_FIRST_CB(spipe, t))) { |
| 2301 | LK_SLASSERT(spipe->xfer != NULL, sc, spipe, NULL, return); |
| 2302 | LK_SLASSERT(spipe->ptype != PT_ROOT_CTRL && spipe->ptype != |
| 2303 | PT_ROOT_INTR, sc, spipe, NULL, return); |
| 2304 | |
| 2305 | /* Check that this transfer can fit in the remaining memory. */ |
| 2306 | if (t->len[A] + t->len[B] + spipe->tregs[LEN] + 1 > |
| 2307 | SL11_MAX_PACKET_SIZE) { |
| 2308 | DLOG(D_XFER, "Transfer does not fit. alen %d blen %d " |
| 2309 | "len %d" , t->len[A], t->len[B], spipe->tregs[LEN], |
| 2310 | 0); |
| 2311 | return; |
| 2312 | } |
| 2313 | |
| 2314 | gcq_remove(&spipe->xq); |
| 2315 | |
| 2316 | if (t->len[A] == -1) { |
| 2317 | ab = A; |
| 2318 | spipe->tregs[ADR] = SL11_BUFFER_START; |
| 2319 | } else { |
| 2320 | ab = B; |
| 2321 | spipe->tregs[ADR] = SL11_BUFFER_END - |
| 2322 | spipe->tregs[LEN]; |
| 2323 | } |
| 2324 | |
| 2325 | t->len[ab] = spipe->tregs[LEN]; |
| 2326 | |
| 2327 | if (spipe->tregs[LEN] && (spipe->tregs[PID] & SL11_PID_BITS) |
| 2328 | != SL11_PID_IN) { |
| 2329 | start_cc_time(&t_copy_to_dev, |
| 2330 | spipe->tregs[LEN]); |
| 2331 | slhci_write_multi(sc, spipe->tregs[ADR], |
| 2332 | spipe->buffer, spipe->tregs[LEN]); |
| 2333 | stop_cc_time(&t_copy_to_dev); |
| 2334 | t->pend -= SLHCI_FS_CONST + |
| 2335 | SLHCI_FS_DATA_TIME(spipe->tregs[LEN]); |
| 2336 | } |
| 2337 | |
| 2338 | DLOG(D_MSG, "NEW TRANSFER AB=%d flags %#x alen %d blen %d" , |
| 2339 | ab, t->flags, t->len[0], t->len[1]); |
| 2340 | |
| 2341 | if (spipe->tregs[LEN]) |
| 2342 | i = 0; |
| 2343 | else |
| 2344 | i = 1; |
| 2345 | |
| 2346 | for (; i <= 3; i++) |
| 2347 | if (t->current_tregs[ab][i] != spipe->tregs[i]) { |
| 2348 | t->current_tregs[ab][i] = spipe->tregs[i]; |
| 2349 | slhci_write(sc, slhci_tregs[ab][i], |
| 2350 | spipe->tregs[i]); |
| 2351 | } |
| 2352 | |
| 2353 | DLOG(D_SXFER, "Transfer len %d pid %#x dev %d type %d" , |
| 2354 | spipe->tregs[LEN], spipe->tregs[PID], spipe->tregs[DEV], |
| 2355 | spipe->ptype); |
| 2356 | |
| 2357 | t->spipe[ab] = spipe; |
| 2358 | t->flags |= ab ? F_BREADY : F_AREADY; |
| 2359 | |
| 2360 | slhci_tstart(sc); |
| 2361 | } |
| 2362 | } |
| 2363 | |
| 2364 | /* |
| 2365 | * slhci_callback is called after the lock is taken. |
| 2366 | */ |
| 2367 | static void |
| 2368 | slhci_callback(struct slhci_softc *sc) |
| 2369 | { |
| 2370 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2371 | struct slhci_transfers *t; |
| 2372 | struct slhci_pipe *spipe; |
| 2373 | struct usbd_xfer *xfer; |
| 2374 | |
| 2375 | t = &sc->sc_transfers; |
| 2376 | |
| 2377 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2378 | |
| 2379 | DLOG(D_SOFT, "CB flags %#x" , t->flags, 0,0,0); |
| 2380 | for (;;) { |
| 2381 | if (__predict_false(t->flags & F_ROOTINTR)) { |
| 2382 | t->flags &= ~F_ROOTINTR; |
| 2383 | if (t->rootintr != NULL) { |
| 2384 | u_char *p; |
| 2385 | |
| 2386 | p = t->rootintr->ux_buf; |
| 2387 | p[0] = 2; |
| 2388 | t->rootintr->ux_actlen = 1; |
| 2389 | t->rootintr->ux_status = USBD_NORMAL_COMPLETION; |
| 2390 | xfer = t->rootintr; |
| 2391 | goto do_callback; |
| 2392 | } |
| 2393 | } |
| 2394 | |
| 2395 | |
| 2396 | if (!DEQUEUED_CALLBACK(spipe, t)) |
| 2397 | return; |
| 2398 | |
| 2399 | xfer = spipe->xfer; |
| 2400 | LK_SLASSERT(xfer != NULL, sc, spipe, NULL, return); |
| 2401 | spipe->xfer = NULL; |
| 2402 | DLOG(D_XFER, "xfer callback length %d actlen %d spipe %p " |
| 2403 | "type %d" , xfer->ux_length, xfer->ux_actlen, spipe, |
| 2404 | spipe->ptype); |
| 2405 | do_callback: |
| 2406 | slhci_do_callback(sc, xfer); |
| 2407 | } |
| 2408 | } |
| 2409 | |
| 2410 | static void |
| 2411 | slhci_enter_xfer(struct slhci_softc *sc, struct slhci_pipe *spipe) |
| 2412 | { |
| 2413 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2414 | struct slhci_transfers *t; |
| 2415 | |
| 2416 | t = &sc->sc_transfers; |
| 2417 | |
| 2418 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2419 | |
| 2420 | if (__predict_false(t->flags & F_DISABLED) || |
| 2421 | __predict_false(spipe->pflags & PF_GONE)) { |
| 2422 | DLOG(D_MSG, "slhci_enter_xfer: DISABLED or GONE" , 0,0,0,0); |
| 2423 | spipe->xfer->ux_status = USBD_CANCELLED; |
| 2424 | } |
| 2425 | |
| 2426 | if (spipe->xfer->ux_status == USBD_IN_PROGRESS) { |
| 2427 | if (spipe->xfer->ux_timeout) { |
| 2428 | spipe->to_frame = t->frame + spipe->xfer->ux_timeout; |
| 2429 | slhci_xfer_timer(sc, spipe); |
| 2430 | } |
| 2431 | if (spipe->pipe.up_interval) |
| 2432 | slhci_queue_timed(sc, spipe); |
| 2433 | else |
| 2434 | enter_q(t, spipe, Q_CB); |
| 2435 | } else |
| 2436 | enter_callback(t, spipe); |
| 2437 | } |
| 2438 | |
| 2439 | static void |
| 2440 | slhci_enter_xfers(struct slhci_softc *sc) |
| 2441 | { |
| 2442 | struct slhci_pipe *spipe; |
| 2443 | |
| 2444 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2445 | |
| 2446 | while (DEQUEUED_WAITQ(spipe, sc)) |
| 2447 | slhci_enter_xfer(sc, spipe); |
| 2448 | } |
| 2449 | |
| 2450 | static void |
| 2451 | slhci_queue_timed(struct slhci_softc *sc, struct slhci_pipe *spipe) |
| 2452 | { |
| 2453 | struct slhci_transfers *t; |
| 2454 | struct gcq *q; |
| 2455 | struct slhci_pipe *spp; |
| 2456 | |
| 2457 | t = &sc->sc_transfers; |
| 2458 | |
| 2459 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2460 | |
| 2461 | FIND_TIMED(q, t, spp, spp->frame > spipe->frame); |
| 2462 | gcq_insert_before(q, &spipe->xq); |
| 2463 | } |
| 2464 | |
| 2465 | static void |
| 2466 | slhci_xfer_timer(struct slhci_softc *sc, struct slhci_pipe *spipe) |
| 2467 | { |
| 2468 | struct slhci_transfers *t; |
| 2469 | struct gcq *q; |
| 2470 | struct slhci_pipe *spp; |
| 2471 | |
| 2472 | t = &sc->sc_transfers; |
| 2473 | |
| 2474 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2475 | |
| 2476 | FIND_TO(q, t, spp, spp->to_frame >= spipe->to_frame); |
| 2477 | gcq_insert_before(q, &spipe->to); |
| 2478 | } |
| 2479 | |
| 2480 | static void |
| 2481 | slhci_callback_schedule(struct slhci_softc *sc) |
| 2482 | { |
| 2483 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2484 | struct slhci_transfers *t; |
| 2485 | |
| 2486 | t = &sc->sc_transfers; |
| 2487 | |
| 2488 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2489 | |
| 2490 | if (t->flags & F_ACTIVE) |
| 2491 | slhci_do_callback_schedule(sc); |
| 2492 | } |
| 2493 | |
| 2494 | static void |
| 2495 | slhci_do_callback_schedule(struct slhci_softc *sc) |
| 2496 | { |
| 2497 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2498 | struct slhci_transfers *t; |
| 2499 | |
| 2500 | t = &sc->sc_transfers; |
| 2501 | |
| 2502 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2503 | |
| 2504 | DLOG(D_MSG, "flags %#x" , t->flags, 0, 0, 0); |
| 2505 | if (!(t->flags & F_CALLBACK)) { |
| 2506 | t->flags |= F_CALLBACK; |
| 2507 | softint_schedule(sc->sc_cb_softintr); |
| 2508 | } |
| 2509 | } |
| 2510 | |
| 2511 | #if 0 |
| 2512 | /* must be called with lock taken. */ |
| 2513 | /* XXX static */ void |
| 2514 | slhci_pollxfer(struct slhci_softc *sc, struct usbd_xfer *xfer) |
| 2515 | { |
| 2516 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2517 | slhci_dotransfer(sc); |
| 2518 | do { |
| 2519 | slhci_dointr(sc); |
| 2520 | } while (xfer->ux_status == USBD_IN_PROGRESS); |
| 2521 | slhci_do_callback(sc, xfer); |
| 2522 | } |
| 2523 | #endif |
| 2524 | |
| 2525 | static usbd_status |
| 2526 | slhci_do_poll(struct slhci_softc *sc, struct slhci_pipe *spipe, struct |
| 2527 | usbd_xfer *xfer) |
| 2528 | { |
| 2529 | slhci_waitintr(sc, 0); |
| 2530 | |
| 2531 | return USBD_NORMAL_COMPLETION; |
| 2532 | } |
| 2533 | |
| 2534 | static usbd_status |
| 2535 | slhci_lsvh_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct |
| 2536 | usbd_xfer *xfer) |
| 2537 | { |
| 2538 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2539 | struct slhci_transfers *t; |
| 2540 | |
| 2541 | t = &sc->sc_transfers; |
| 2542 | |
| 2543 | if (!(t->flags & F_LSVH_WARNED)) { |
| 2544 | printf("%s: Low speed device via hub disabled, " |
| 2545 | "see slhci(4)\n" , SC_NAME(sc)); |
| 2546 | DDOLOG("Low speed device via hub disabled, " |
| 2547 | "see slhci(4)" , SC_NAME(sc), 0,0,0); |
| 2548 | t->flags |= F_LSVH_WARNED; |
| 2549 | } |
| 2550 | return USBD_INVAL; |
| 2551 | } |
| 2552 | |
| 2553 | static usbd_status |
| 2554 | slhci_isoc_warn(struct slhci_softc *sc, struct slhci_pipe *spipe, struct |
| 2555 | usbd_xfer *xfer) |
| 2556 | { |
| 2557 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2558 | struct slhci_transfers *t; |
| 2559 | |
| 2560 | t = &sc->sc_transfers; |
| 2561 | |
| 2562 | if (!(t->flags & F_ISOC_WARNED)) { |
| 2563 | printf("%s: ISOC transfer not supported " |
| 2564 | "(see slhci(4))\n" , SC_NAME(sc)); |
| 2565 | DDOLOG("ISOC transfer not supported " |
| 2566 | "(see slhci(4))" , 0, 0, 0, 0); |
| 2567 | t->flags |= F_ISOC_WARNED; |
| 2568 | } |
| 2569 | return USBD_INVAL; |
| 2570 | } |
| 2571 | |
| 2572 | static usbd_status |
| 2573 | slhci_open_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct |
| 2574 | usbd_xfer *xfer) |
| 2575 | { |
| 2576 | struct slhci_transfers *t; |
| 2577 | struct usbd_pipe *pipe; |
| 2578 | |
| 2579 | t = &sc->sc_transfers; |
| 2580 | pipe = &spipe->pipe; |
| 2581 | |
| 2582 | if (t->flags & F_DISABLED) |
| 2583 | return USBD_CANCELLED; |
| 2584 | else if (pipe->up_interval && !slhci_reserve_bustime(sc, spipe, 1)) |
| 2585 | return USBD_PENDING_REQUESTS; |
| 2586 | else { |
| 2587 | enter_all_pipes(t, spipe); |
| 2588 | return USBD_NORMAL_COMPLETION; |
| 2589 | } |
| 2590 | } |
| 2591 | |
| 2592 | static usbd_status |
| 2593 | slhci_close_pipe(struct slhci_softc *sc, struct slhci_pipe *spipe, struct |
| 2594 | usbd_xfer *xfer) |
| 2595 | { |
| 2596 | struct usbd_pipe *pipe; |
| 2597 | |
| 2598 | pipe = &spipe->pipe; |
| 2599 | |
| 2600 | if (pipe->up_interval && spipe->ptype != PT_ROOT_INTR) |
| 2601 | slhci_reserve_bustime(sc, spipe, 0); |
| 2602 | gcq_remove(&spipe->ap); |
| 2603 | return USBD_NORMAL_COMPLETION; |
| 2604 | } |
| 2605 | |
| 2606 | static usbd_status |
| 2607 | slhci_do_abort(struct slhci_softc *sc, struct slhci_pipe *spipe, struct |
| 2608 | usbd_xfer *xfer) |
| 2609 | { |
| 2610 | struct slhci_transfers *t; |
| 2611 | |
| 2612 | t = &sc->sc_transfers; |
| 2613 | |
| 2614 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2615 | |
| 2616 | if (spipe->xfer == xfer) { |
| 2617 | if (spipe->ptype == PT_ROOT_INTR) { |
| 2618 | if (t->rootintr == spipe->xfer) /* XXX assert? */ |
| 2619 | t->rootintr = NULL; |
| 2620 | } else { |
| 2621 | gcq_remove(&spipe->to); |
| 2622 | gcq_remove(&spipe->xq); |
| 2623 | |
| 2624 | if (t->spipe[A] == spipe) { |
| 2625 | t->spipe[A] = NULL; |
| 2626 | if (!(t->flags & F_AINPROG)) |
| 2627 | t->len[A] = -1; |
| 2628 | } else if (t->spipe[B] == spipe) { |
| 2629 | t->spipe[B] = NULL; |
| 2630 | if (!(t->flags & F_BINPROG)) |
| 2631 | t->len[B] = -1; |
| 2632 | } |
| 2633 | } |
| 2634 | |
| 2635 | if (xfer->ux_status != USBD_TIMEOUT) { |
| 2636 | spipe->xfer = NULL; |
| 2637 | spipe->pipe.up_repeat = 0; /* XXX timeout? */ |
| 2638 | } |
| 2639 | } |
| 2640 | |
| 2641 | return USBD_NORMAL_COMPLETION; |
| 2642 | } |
| 2643 | |
| 2644 | /* |
| 2645 | * Called to deactivate or stop use of the controller instead of panicking. |
| 2646 | * Will cancel the xfer correctly even when not on a list. |
| 2647 | */ |
| 2648 | static usbd_status |
| 2649 | slhci_halt(struct slhci_softc *sc, struct slhci_pipe *spipe, |
| 2650 | struct usbd_xfer *xfer) |
| 2651 | { |
| 2652 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2653 | struct slhci_transfers *t; |
| 2654 | |
| 2655 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2656 | |
| 2657 | t = &sc->sc_transfers; |
| 2658 | |
| 2659 | DDOLOG("Halt! sc %p spipe %p xfer %p" , sc, spipe, xfer, 0); |
| 2660 | |
| 2661 | if (spipe != NULL) |
| 2662 | slhci_log_spipe(spipe); |
| 2663 | |
| 2664 | if (xfer != NULL) |
| 2665 | slhci_log_xfer(xfer); |
| 2666 | |
| 2667 | if (spipe != NULL && xfer != NULL && spipe->xfer == xfer && |
| 2668 | !gcq_onlist(&spipe->xq) && t->spipe[A] != spipe && t->spipe[B] != |
| 2669 | spipe) { |
| 2670 | xfer->ux_status = USBD_CANCELLED; |
| 2671 | enter_callback(t, spipe); |
| 2672 | } |
| 2673 | |
| 2674 | if (t->flags & F_ACTIVE) { |
| 2675 | slhci_intrchange(sc, 0); |
| 2676 | /* |
| 2677 | * leave power on when halting in case flash devices or disks |
| 2678 | * are attached, which may be writing and could be damaged |
| 2679 | * by abrupt power loss. The root hub clear power feature |
| 2680 | * should still work after halting. |
| 2681 | */ |
| 2682 | } |
| 2683 | |
| 2684 | t->flags &= ~F_ACTIVE; |
| 2685 | t->flags |= F_UDISABLED; |
| 2686 | if (!(t->flags & F_NODEV)) |
| 2687 | t->flags |= F_NODEV|F_CCONNECT|F_ROOTINTR; |
| 2688 | slhci_drain(sc); |
| 2689 | |
| 2690 | /* One last callback for the drain and device removal. */ |
| 2691 | slhci_do_callback_schedule(sc); |
| 2692 | |
| 2693 | return USBD_NORMAL_COMPLETION; |
| 2694 | } |
| 2695 | |
| 2696 | /* |
| 2697 | * There are three interrupt states: no interrupts during reset and after |
| 2698 | * device deactivation, INSERT only for no device present but power on, and |
| 2699 | * SOF, INSERT, ADONE, and BDONE when device is present. |
| 2700 | */ |
| 2701 | static void |
| 2702 | slhci_intrchange(struct slhci_softc *sc, uint8_t new_ier) |
| 2703 | { |
| 2704 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2705 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2706 | if (sc->sc_ier != new_ier) { |
| 2707 | DLOG(D_INTR, "New IER %#x" , new_ier, 0, 0, 0); |
| 2708 | sc->sc_ier = new_ier; |
| 2709 | slhci_write(sc, SL11_IER, new_ier); |
| 2710 | BSB_SYNC(sc->iot, sc->ioh, sc->pst, sc->psz); |
| 2711 | } |
| 2712 | } |
| 2713 | |
| 2714 | /* |
| 2715 | * Drain: cancel all pending transfers and put them on the callback list and |
| 2716 | * set the UDISABLED flag. UDISABLED is cleared only by reset. |
| 2717 | */ |
| 2718 | static void |
| 2719 | slhci_drain(struct slhci_softc *sc) |
| 2720 | { |
| 2721 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2722 | struct slhci_transfers *t; |
| 2723 | struct slhci_pipe *spipe; |
| 2724 | struct gcq *q; |
| 2725 | int i; |
| 2726 | |
| 2727 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2728 | |
| 2729 | t = &sc->sc_transfers; |
| 2730 | |
| 2731 | DLOG(D_MSG, "DRAIN flags %#x" , t->flags, 0,0,0); |
| 2732 | |
| 2733 | t->pend = INT_MAX; |
| 2734 | |
| 2735 | for (i=0; i<=1; i++) { |
| 2736 | t->len[i] = -1; |
| 2737 | if (t->spipe[i] != NULL) { |
| 2738 | enter_callback(t, t->spipe[i]); |
| 2739 | t->spipe[i] = NULL; |
| 2740 | } |
| 2741 | } |
| 2742 | |
| 2743 | /* Merge the queues into the callback queue. */ |
| 2744 | gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_CB]); |
| 2745 | gcq_merge_tail(&t->q[Q_CALLBACKS], &t->q[Q_NEXT_CB]); |
| 2746 | gcq_merge_tail(&t->q[Q_CALLBACKS], &t->timed); |
| 2747 | |
| 2748 | /* |
| 2749 | * Cancel all pipes. Note that not all of these may be on the |
| 2750 | * callback queue yet; some could be in slhci_start, for example. |
| 2751 | */ |
| 2752 | FOREACH_AP(q, t, spipe) { |
| 2753 | spipe->pflags |= PF_GONE; |
| 2754 | spipe->pipe.up_repeat = 0; |
| 2755 | spipe->pipe.up_aborting = 1; |
| 2756 | if (spipe->xfer != NULL) |
| 2757 | spipe->xfer->ux_status = USBD_CANCELLED; |
| 2758 | } |
| 2759 | |
| 2760 | gcq_remove_all(&t->to); |
| 2761 | |
| 2762 | t->flags |= F_UDISABLED; |
| 2763 | t->flags &= ~(F_AREADY|F_BREADY|F_AINPROG|F_BINPROG|F_LOWSPEED); |
| 2764 | } |
| 2765 | |
| 2766 | /* |
| 2767 | * RESET: SL11_CTRL_RESETENGINE=1 and SL11_CTRL_JKSTATE=0 for 50ms |
| 2768 | * reconfigure SOF after reset, must wait 2.5us before USB bus activity (SOF) |
| 2769 | * check attached device speed. |
| 2770 | * must wait 100ms before USB transaction according to app note, 10ms |
| 2771 | * by spec. uhub does this delay |
| 2772 | * |
| 2773 | * Started from root hub set feature reset, which does step one. |
| 2774 | * ub_usepolling will call slhci_reset directly, otherwise the callout goes |
| 2775 | * through slhci_reset_entry. |
| 2776 | */ |
| 2777 | void |
| 2778 | slhci_reset(struct slhci_softc *sc) |
| 2779 | { |
| 2780 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2781 | struct slhci_transfers *t; |
| 2782 | struct slhci_pipe *spipe; |
| 2783 | struct gcq *q; |
| 2784 | uint8_t r, pol, ctrl; |
| 2785 | |
| 2786 | t = &sc->sc_transfers; |
| 2787 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2788 | |
| 2789 | stop_cc_time(&t_delay); |
| 2790 | |
| 2791 | KASSERT(t->flags & F_ACTIVE); |
| 2792 | |
| 2793 | start_cc_time(&t_delay, 0); |
| 2794 | stop_cc_time(&t_delay); |
| 2795 | |
| 2796 | slhci_write(sc, SL11_CTRL, 0); |
| 2797 | start_cc_time(&t_delay, 3); |
| 2798 | DELAY(3); |
| 2799 | stop_cc_time(&t_delay); |
| 2800 | slhci_write(sc, SL11_ISR, 0xff); |
| 2801 | |
| 2802 | r = slhci_read(sc, SL11_ISR); |
| 2803 | |
| 2804 | if (r & SL11_ISR_INSERT) |
| 2805 | slhci_write(sc, SL11_ISR, SL11_ISR_INSERT); |
| 2806 | |
| 2807 | if (r & SL11_ISR_NODEV) { |
| 2808 | DLOG(D_MSG, "NC" , 0,0,0,0); |
| 2809 | /* |
| 2810 | * Normally, the hard interrupt insert routine will issue |
| 2811 | * CCONNECT, however we need to do it here if the detach |
| 2812 | * happened during reset. |
| 2813 | */ |
| 2814 | if (!(t->flags & F_NODEV)) |
| 2815 | t->flags |= F_CCONNECT|F_ROOTINTR|F_NODEV; |
| 2816 | slhci_intrchange(sc, SL11_IER_INSERT); |
| 2817 | } else { |
| 2818 | if (t->flags & F_NODEV) |
| 2819 | t->flags |= F_CCONNECT; |
| 2820 | t->flags &= ~(F_NODEV|F_LOWSPEED); |
| 2821 | if (r & SL11_ISR_DATA) { |
| 2822 | DLOG(D_MSG, "FS" , 0,0,0,0); |
| 2823 | pol = ctrl = 0; |
| 2824 | } else { |
| 2825 | DLOG(D_MSG, "LS" , 0,0,0,0); |
| 2826 | pol = SL811_CSOF_POLARITY; |
| 2827 | ctrl = SL11_CTRL_LOWSPEED; |
| 2828 | t->flags |= F_LOWSPEED; |
| 2829 | } |
| 2830 | |
| 2831 | /* Enable SOF auto-generation */ |
| 2832 | t->frame = 0; /* write to SL811_CSOF will reset frame */ |
| 2833 | slhci_write(sc, SL11_SOFTIME, 0xe0); |
| 2834 | slhci_write(sc, SL811_CSOF, pol|SL811_CSOF_MASTER|0x2e); |
| 2835 | slhci_write(sc, SL11_CTRL, ctrl|SL11_CTRL_ENABLESOF); |
| 2836 | |
| 2837 | /* |
| 2838 | * According to the app note, ARM must be set |
| 2839 | * for SOF generation to work. We initialize all |
| 2840 | * USBA registers here for current_tregs. |
| 2841 | */ |
| 2842 | slhci_write(sc, SL11_E0ADDR, SL11_BUFFER_START); |
| 2843 | slhci_write(sc, SL11_E0LEN, 0); |
| 2844 | slhci_write(sc, SL11_E0PID, SL11_PID_SOF); |
| 2845 | slhci_write(sc, SL11_E0DEV, 0); |
| 2846 | slhci_write(sc, SL11_E0CTRL, SL11_EPCTRL_ARM); |
| 2847 | |
| 2848 | /* |
| 2849 | * Initialize B registers. This can't be done earlier since |
| 2850 | * they are not valid until the SL811_CSOF register is written |
| 2851 | * above due to SL11H compatability. |
| 2852 | */ |
| 2853 | slhci_write(sc, SL11_E1ADDR, SL11_BUFFER_END - 8); |
| 2854 | slhci_write(sc, SL11_E1LEN, 0); |
| 2855 | slhci_write(sc, SL11_E1PID, 0); |
| 2856 | slhci_write(sc, SL11_E1DEV, 0); |
| 2857 | |
| 2858 | t->current_tregs[0][ADR] = SL11_BUFFER_START; |
| 2859 | t->current_tregs[0][LEN] = 0; |
| 2860 | t->current_tregs[0][PID] = SL11_PID_SOF; |
| 2861 | t->current_tregs[0][DEV] = 0; |
| 2862 | t->current_tregs[1][ADR] = SL11_BUFFER_END - 8; |
| 2863 | t->current_tregs[1][LEN] = 0; |
| 2864 | t->current_tregs[1][PID] = 0; |
| 2865 | t->current_tregs[1][DEV] = 0; |
| 2866 | |
| 2867 | /* SOF start will produce USBA interrupt */ |
| 2868 | t->len[A] = 0; |
| 2869 | t->flags |= F_AINPROG; |
| 2870 | |
| 2871 | slhci_intrchange(sc, SLHCI_NORMAL_INTERRUPTS); |
| 2872 | } |
| 2873 | |
| 2874 | t->flags &= ~(F_UDISABLED|F_RESET); |
| 2875 | t->flags |= F_CRESET|F_ROOTINTR; |
| 2876 | FOREACH_AP(q, t, spipe) { |
| 2877 | spipe->pflags &= ~PF_GONE; |
| 2878 | spipe->pipe.up_aborting = 0; |
| 2879 | } |
| 2880 | DLOG(D_MSG, "RESET done flags %#x" , t->flags, 0,0,0); |
| 2881 | } |
| 2882 | |
| 2883 | |
| 2884 | #ifdef SLHCI_DEBUG |
| 2885 | static int |
| 2886 | slhci_memtest(struct slhci_softc *sc) |
| 2887 | { |
| 2888 | enum { ASC, DESC, EITHER = ASC }; /* direction */ |
| 2889 | enum { READ, WRITE }; /* operation */ |
| 2890 | const char *ptr, *elem; |
| 2891 | size_t i; |
| 2892 | const int low = SL11_BUFFER_START, high = SL11_BUFFER_END; |
| 2893 | int addr = 0, dir = ASC, op = READ; |
| 2894 | /* Extended March C- test algorithm (SOFs also) */ |
| 2895 | const char test[] = "E(w0) A(r0w1r1) A(r1w0r0) D(r0w1) D(r1w0) E(r0)" ; |
| 2896 | char c; |
| 2897 | const uint8_t dbs[] = { 0x00, 0x0f, 0x33, 0x55 }; /* data backgrounds */ |
| 2898 | uint8_t db; |
| 2899 | |
| 2900 | /* Perform memory test for all data backgrounds. */ |
| 2901 | for (i = 0; i < __arraycount(dbs); i++) { |
| 2902 | ptr = test; |
| 2903 | elem = ptr; |
| 2904 | /* Walk test algorithm string. */ |
| 2905 | while ((c = *ptr++) != '\0') |
| 2906 | switch (tolower((int)c)) { |
| 2907 | case 'a': |
| 2908 | /* Address sequence is in ascending order. */ |
| 2909 | dir = ASC; |
| 2910 | break; |
| 2911 | case 'd': |
| 2912 | /* Address sequence is in descending order. */ |
| 2913 | dir = DESC; |
| 2914 | break; |
| 2915 | case 'e': |
| 2916 | /* Address sequence is in either order. */ |
| 2917 | dir = EITHER; |
| 2918 | break; |
| 2919 | case '(': |
| 2920 | /* Start of test element (sequence). */ |
| 2921 | elem = ptr; |
| 2922 | addr = (dir == ASC) ? low : high; |
| 2923 | break; |
| 2924 | case 'r': |
| 2925 | /* read operation */ |
| 2926 | op = READ; |
| 2927 | break; |
| 2928 | case 'w': |
| 2929 | /* write operation */ |
| 2930 | op = WRITE; |
| 2931 | break; |
| 2932 | case '0': |
| 2933 | case '1': |
| 2934 | /* |
| 2935 | * Execute previously set-up operation by |
| 2936 | * reading/writing non-inverted ('0') or |
| 2937 | * inverted ('1') data background. |
| 2938 | */ |
| 2939 | db = (c - '0') ? ~dbs[i] : dbs[i]; |
| 2940 | if (op == READ) { |
| 2941 | if (slhci_read(sc, addr) != db) |
| 2942 | return -1; |
| 2943 | } else |
| 2944 | slhci_write(sc, addr, db); |
| 2945 | break; |
| 2946 | case ')': |
| 2947 | /* |
| 2948 | * End of element: Repeat same element with next |
| 2949 | * address or continue to next element. |
| 2950 | */ |
| 2951 | addr = (dir == ASC) ? addr + 1 : addr - 1; |
| 2952 | if (addr >= low && addr <= high) |
| 2953 | ptr = elem; |
| 2954 | break; |
| 2955 | default: |
| 2956 | /* Do nothing. */ |
| 2957 | break; |
| 2958 | } |
| 2959 | } |
| 2960 | |
| 2961 | return 0; |
| 2962 | } |
| 2963 | #endif |
| 2964 | |
| 2965 | /* returns 1 if succeeded, 0 if failed, reserve == 0 is unreserve */ |
| 2966 | static int |
| 2967 | slhci_reserve_bustime(struct slhci_softc *sc, struct slhci_pipe *spipe, int |
| 2968 | reserve) |
| 2969 | { |
| 2970 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 2971 | struct slhci_transfers *t; |
| 2972 | int bustime, max_packet; |
| 2973 | |
| 2974 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 2975 | |
| 2976 | t = &sc->sc_transfers; |
| 2977 | max_packet = UGETW(spipe->pipe.up_endpoint->ue_edesc->wMaxPacketSize); |
| 2978 | |
| 2979 | if (spipe->pflags & PF_LS) |
| 2980 | bustime = SLHCI_LS_CONST + SLHCI_LS_DATA_TIME(max_packet); |
| 2981 | else |
| 2982 | bustime = SLHCI_FS_CONST + SLHCI_FS_DATA_TIME(max_packet); |
| 2983 | |
| 2984 | if (!reserve) { |
| 2985 | t->reserved_bustime -= bustime; |
| 2986 | #ifdef DIAGNOSTIC |
| 2987 | if (t->reserved_bustime < 0) { |
| 2988 | printf("%s: reserved_bustime %d < 0!\n" , |
| 2989 | SC_NAME(sc), t->reserved_bustime); |
| 2990 | DDOLOG("reserved_bustime %d < 0!" , |
| 2991 | t->reserved_bustime, 0, 0, 0); |
| 2992 | t->reserved_bustime = 0; |
| 2993 | } |
| 2994 | #endif |
| 2995 | return 1; |
| 2996 | } |
| 2997 | |
| 2998 | if (t->reserved_bustime + bustime > SLHCI_RESERVED_BUSTIME) { |
| 2999 | if (ratecheck(&sc->sc_reserved_warn_rate, |
| 3000 | &reserved_warn_rate)) |
| 3001 | #ifdef SLHCI_NO_OVERTIME |
| 3002 | { |
| 3003 | printf("%s: Max reserved bus time exceeded! " |
| 3004 | "Erroring request.\n" , SC_NAME(sc)); |
| 3005 | DDOLOG("%s: Max reserved bus time exceeded! " |
| 3006 | "Erroring request." , 0, 0, 0, 0); |
| 3007 | } |
| 3008 | return 0; |
| 3009 | #else |
| 3010 | { |
| 3011 | printf("%s: Reserved bus time exceeds %d!\n" , |
| 3012 | SC_NAME(sc), SLHCI_RESERVED_BUSTIME); |
| 3013 | DDOLOG("Reserved bus time exceeds %d!" , |
| 3014 | SLHCI_RESERVED_BUSTIME, 0, 0, 0); |
| 3015 | } |
| 3016 | #endif |
| 3017 | } |
| 3018 | |
| 3019 | t->reserved_bustime += bustime; |
| 3020 | return 1; |
| 3021 | } |
| 3022 | |
| 3023 | /* Device insertion/removal interrupt */ |
| 3024 | static void |
| 3025 | slhci_insert(struct slhci_softc *sc) |
| 3026 | { |
| 3027 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3028 | struct slhci_transfers *t; |
| 3029 | |
| 3030 | t = &sc->sc_transfers; |
| 3031 | |
| 3032 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 3033 | |
| 3034 | if (t->flags & F_NODEV) |
| 3035 | slhci_intrchange(sc, 0); |
| 3036 | else { |
| 3037 | slhci_drain(sc); |
| 3038 | slhci_intrchange(sc, SL11_IER_INSERT); |
| 3039 | } |
| 3040 | t->flags ^= F_NODEV; |
| 3041 | t->flags |= F_ROOTINTR|F_CCONNECT; |
| 3042 | DLOG(D_MSG, "INSERT intr: flags after %#x" , t->flags, 0,0,0); |
| 3043 | } |
| 3044 | |
| 3045 | /* |
| 3046 | * Data structures and routines to emulate the root hub. |
| 3047 | */ |
| 3048 | |
| 3049 | static usbd_status |
| 3050 | slhci_clear_feature(struct slhci_softc *sc, unsigned int what) |
| 3051 | { |
| 3052 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 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 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3091 | struct slhci_transfers *t; |
| 3092 | uint8_t r; |
| 3093 | |
| 3094 | t = &sc->sc_transfers; |
| 3095 | |
| 3096 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 3097 | |
| 3098 | if (what == UHF_PORT_RESET) { |
| 3099 | if (!(t->flags & F_ACTIVE)) { |
| 3100 | DDOLOG("SET PORT_RESET when not ACTIVE!" , |
| 3101 | 0,0,0,0); |
| 3102 | return USBD_INVAL; |
| 3103 | } |
| 3104 | if (!(t->flags & F_POWER)) { |
| 3105 | DDOLOG("SET PORT_RESET without PORT_POWER! flags %p" , |
| 3106 | t->flags, 0,0,0); |
| 3107 | return USBD_INVAL; |
| 3108 | } |
| 3109 | if (t->flags & F_RESET) |
| 3110 | return USBD_NORMAL_COMPLETION; |
| 3111 | DLOG(D_MSG, "RESET flags %#x" , t->flags, 0,0,0); |
| 3112 | slhci_intrchange(sc, 0); |
| 3113 | slhci_drain(sc); |
| 3114 | slhci_write(sc, SL11_CTRL, SL11_CTRL_RESETENGINE); |
| 3115 | /* usb spec says delay >= 10ms, app note 50ms */ |
| 3116 | start_cc_time(&t_delay, 50000); |
| 3117 | if (sc->sc_bus.ub_usepolling) { |
| 3118 | DELAY(50000); |
| 3119 | slhci_reset(sc); |
| 3120 | } else { |
| 3121 | t->flags |= F_RESET; |
| 3122 | callout_schedule(&sc->sc_timer, max(mstohz(50), 2)); |
| 3123 | } |
| 3124 | } else if (what == UHF_PORT_SUSPEND) { |
| 3125 | printf("%s: USB Suspend not implemented!\n" , SC_NAME(sc)); |
| 3126 | DDOLOG("USB Suspend not implemented!" , 0, 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 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3162 | struct slhci_transfers *t; |
| 3163 | unsigned int status, change; |
| 3164 | |
| 3165 | t = &sc->sc_transfers; |
| 3166 | |
| 3167 | KASSERT(mutex_owned(&sc->sc_intr_lock)); |
| 3168 | |
| 3169 | /* |
| 3170 | * We do not have a way to detect over current or babble and |
| 3171 | * suspend is currently not implemented, so connect and reset |
| 3172 | * are the only changes that need to be reported. |
| 3173 | */ |
| 3174 | change = 0; |
| 3175 | if (t->flags & F_CCONNECT) |
| 3176 | change |= UPS_C_CONNECT_STATUS; |
| 3177 | if (t->flags & F_CRESET) |
| 3178 | change |= UPS_C_PORT_RESET; |
| 3179 | |
| 3180 | status = 0; |
| 3181 | if (!(t->flags & F_NODEV)) |
| 3182 | status |= UPS_CURRENT_CONNECT_STATUS; |
| 3183 | if (!(t->flags & F_UDISABLED)) |
| 3184 | status |= UPS_PORT_ENABLED; |
| 3185 | if (t->flags & F_RESET) |
| 3186 | status |= UPS_RESET; |
| 3187 | if (t->flags & F_POWER) |
| 3188 | status |= UPS_PORT_POWER; |
| 3189 | if (t->flags & F_LOWSPEED) |
| 3190 | status |= UPS_LOW_SPEED; |
| 3191 | USETW(ps->wPortStatus, status); |
| 3192 | USETW(ps->wPortChange, change); |
| 3193 | DLOG(D_ROOT, "status=%#.4x, change=%#.4x" , status, change, 0,0); |
| 3194 | } |
| 3195 | |
| 3196 | static int |
| 3197 | slhci_roothub_ctrl(struct usbd_bus *bus, usb_device_request_t *req, |
| 3198 | void *buf, int buflen) |
| 3199 | { |
| 3200 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3201 | struct slhci_softc *sc = SLHCI_BUS2SC(bus); |
| 3202 | struct slhci_transfers *t = &sc->sc_transfers; |
| 3203 | usbd_status error = USBD_IOERROR; /* XXX should be STALL */ |
| 3204 | uint16_t len, value, index; |
| 3205 | uint8_t type; |
| 3206 | int actlen = 0; |
| 3207 | |
| 3208 | len = UGETW(req->wLength); |
| 3209 | value = UGETW(req->wValue); |
| 3210 | index = UGETW(req->wIndex); |
| 3211 | |
| 3212 | type = req->bmRequestType; |
| 3213 | |
| 3214 | SLHCI_DEXEC(D_TRACE, slhci_log_req(req)); |
| 3215 | |
| 3216 | /* |
| 3217 | * USB requests for hubs have two basic types, standard and class. |
| 3218 | * Each could potentially have recipients of device, interface, |
| 3219 | * endpoint, or other. For the hub class, CLASS_OTHER means the port |
| 3220 | * and CLASS_DEVICE means the hub. For standard requests, OTHER |
| 3221 | * is not used. Standard request are described in section 9.4 of the |
| 3222 | * standard, hub class requests in 11.16. Each request is either read |
| 3223 | * or write. |
| 3224 | * |
| 3225 | * Clear Feature, Set Feature, and Status are defined for each of the |
| 3226 | * used recipients. Get Descriptor and Set Descriptor are defined for |
| 3227 | * both standard and hub class types with different descriptors. |
| 3228 | * Other requests have only one defined recipient and type. These |
| 3229 | * include: Get/Set Address, Get/Set Configuration, Get/Set Interface, |
| 3230 | * and Synch Frame for standard requests and Get Bus State for hub |
| 3231 | * class. |
| 3232 | * |
| 3233 | * When a device is first powered up it has address 0 until the |
| 3234 | * address is set. |
| 3235 | * |
| 3236 | * Hubs are only allowed to support one interface and may not have |
| 3237 | * isochronous endpoints. The results of the related requests are |
| 3238 | * undefined. |
| 3239 | * |
| 3240 | * The standard requires invalid or unsupported requests to return |
| 3241 | * STALL in the data stage, however this does not work well with |
| 3242 | * current error handling. XXX |
| 3243 | * |
| 3244 | * Some unsupported fields: |
| 3245 | * Clear Hub Feature is for C_HUB_LOCAL_POWER and C_HUB_OVER_CURRENT |
| 3246 | * Set Device Features is for ENDPOINT_HALT and DEVICE_REMOTE_WAKEUP |
| 3247 | * Get Bus State is optional sample of D- and D+ at EOF2 |
| 3248 | */ |
| 3249 | |
| 3250 | switch (req->bRequest) { |
| 3251 | /* Write Requests */ |
| 3252 | case UR_CLEAR_FEATURE: |
| 3253 | if (type == UT_WRITE_CLASS_OTHER) { |
| 3254 | if (index == 1 /* Port */) { |
| 3255 | mutex_enter(&sc->sc_intr_lock); |
| 3256 | error = slhci_clear_feature(sc, value); |
| 3257 | mutex_exit(&sc->sc_intr_lock); |
| 3258 | } else |
| 3259 | DLOG(D_ROOT, "Clear Port Feature " |
| 3260 | "index = %#.4x" , index, 0,0,0); |
| 3261 | } |
| 3262 | break; |
| 3263 | case UR_SET_FEATURE: |
| 3264 | if (type == UT_WRITE_CLASS_OTHER) { |
| 3265 | if (index == 1 /* Port */) { |
| 3266 | mutex_enter(&sc->sc_intr_lock); |
| 3267 | error = slhci_set_feature(sc, value); |
| 3268 | mutex_exit(&sc->sc_intr_lock); |
| 3269 | } else |
| 3270 | DLOG(D_ROOT, "Set Port Feature " |
| 3271 | "index = %#.4x" , index, 0,0,0); |
| 3272 | } else if (type != UT_WRITE_CLASS_DEVICE) |
| 3273 | DLOG(D_ROOT, "Set Device Feature " |
| 3274 | "ENDPOINT_HALT or DEVICE_REMOTE_WAKEUP " |
| 3275 | "not supported" , 0,0,0,0); |
| 3276 | break; |
| 3277 | |
| 3278 | /* Read Requests */ |
| 3279 | case UR_GET_STATUS: |
| 3280 | if (type == UT_READ_CLASS_OTHER) { |
| 3281 | if (index == 1 /* Port */ && len == /* XXX >=? */ |
| 3282 | sizeof(usb_port_status_t)) { |
| 3283 | mutex_enter(&sc->sc_intr_lock); |
| 3284 | slhci_get_status(sc, (usb_port_status_t *) |
| 3285 | buf); |
| 3286 | mutex_exit(&sc->sc_intr_lock); |
| 3287 | actlen = sizeof(usb_port_status_t); |
| 3288 | error = USBD_NORMAL_COMPLETION; |
| 3289 | } else |
| 3290 | DLOG(D_ROOT, "Get Port Status index = %#.4x " |
| 3291 | "len = %#.4x" , index, len, 0,0); |
| 3292 | } else if (type == UT_READ_CLASS_DEVICE) { /* XXX index? */ |
| 3293 | if (len == sizeof(usb_hub_status_t)) { |
| 3294 | DLOG(D_ROOT, "Get Hub Status" , |
| 3295 | 0,0,0,0); |
| 3296 | actlen = sizeof(usb_hub_status_t); |
| 3297 | memset(buf, 0, actlen); |
| 3298 | error = USBD_NORMAL_COMPLETION; |
| 3299 | } else |
| 3300 | DLOG(D_ROOT, "Get Hub Status bad len %#.4x" , |
| 3301 | len, 0,0,0); |
| 3302 | } |
| 3303 | break; |
| 3304 | case UR_GET_DESCRIPTOR: |
| 3305 | if (type == UT_READ_DEVICE) { |
| 3306 | /* value is type (&0xff00) and index (0xff) */ |
| 3307 | if (value == (UDESC_DEVICE<<8)) { |
| 3308 | usb_device_descriptor_t devd; |
| 3309 | |
| 3310 | actlen = min(buflen, sizeof(devd)); |
| 3311 | memcpy(&devd, buf, actlen); |
| 3312 | USETW(devd.idVendor, USB_VENDOR_SCANLOGIC); |
| 3313 | memcpy(buf, &devd, actlen); |
| 3314 | error = USBD_NORMAL_COMPLETION; |
| 3315 | } else if (value == (UDESC_CONFIG<<8)) { |
| 3316 | struct usb_roothub_descriptors confd; |
| 3317 | |
| 3318 | actlen = min(buflen, sizeof(confd)); |
| 3319 | memcpy(&confd, buf, actlen); |
| 3320 | |
| 3321 | /* 2 mA units */ |
| 3322 | confd.urh_confd.bMaxPower = t->max_current; |
| 3323 | memcpy(buf, &confd, actlen); |
| 3324 | error = USBD_NORMAL_COMPLETION; |
| 3325 | } else if (value == ((UDESC_STRING<<8)|1)) { |
| 3326 | /* Vendor */ |
| 3327 | actlen = usb_makestrdesc((usb_string_descriptor_t *) |
| 3328 | buf, len, "ScanLogic/Cypress" ); |
| 3329 | error = USBD_NORMAL_COMPLETION; |
| 3330 | } else if (value == ((UDESC_STRING<<8)|2)) { |
| 3331 | /* Product */ |
| 3332 | actlen = usb_makestrdesc((usb_string_descriptor_t *) |
| 3333 | buf, len, "SL811HS/T root hub" ); |
| 3334 | error = USBD_NORMAL_COMPLETION; |
| 3335 | } else |
| 3336 | DDOLOG("Unknown Get Descriptor %#.4x" , |
| 3337 | value, 0,0,0); |
| 3338 | } else if (type == UT_READ_CLASS_DEVICE) { |
| 3339 | /* Descriptor number is 0 */ |
| 3340 | if (value == (UDESC_HUB<<8)) { |
| 3341 | usb_hub_descriptor_t hubd; |
| 3342 | |
| 3343 | actlen = min(buflen, sizeof(hubd)); |
| 3344 | memcpy(&hubd, buf, actlen); |
| 3345 | hubd.bHubContrCurrent = |
| 3346 | 500 - t->max_current; |
| 3347 | memcpy(buf, &hubd, actlen); |
| 3348 | error = USBD_NORMAL_COMPLETION; |
| 3349 | } else |
| 3350 | DDOLOG("Unknown Get Hub Descriptor %#.4x" , |
| 3351 | value, 0,0,0); |
| 3352 | } |
| 3353 | break; |
| 3354 | default: |
| 3355 | /* default from usbroothub */ |
| 3356 | return buflen; |
| 3357 | } |
| 3358 | |
| 3359 | if (error == USBD_NORMAL_COMPLETION) |
| 3360 | return actlen; |
| 3361 | |
| 3362 | return -1; |
| 3363 | } |
| 3364 | |
| 3365 | /* End in lock functions. Start debug functions. */ |
| 3366 | |
| 3367 | #ifdef SLHCI_DEBUG |
| 3368 | void |
| 3369 | slhci_log_buffer(struct usbd_xfer *xfer) |
| 3370 | { |
| 3371 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3372 | u_char *buf; |
| 3373 | |
| 3374 | if(xfer->ux_length > 0 && |
| 3375 | UE_GET_DIR(xfer->ux_pipe->up_endpoint->ue_edesc->bEndpointAddress) == |
| 3376 | UE_DIR_IN) { |
| 3377 | buf = xfer->ux_buf; |
| 3378 | DDOLOGBUF(buf, xfer->ux_actlen); |
| 3379 | DDOLOG("len %d actlen %d short %d" , xfer->ux_length, |
| 3380 | xfer->ux_actlen, xfer->ux_length - xfer->ux_actlen, 0); |
| 3381 | } |
| 3382 | } |
| 3383 | |
| 3384 | void |
| 3385 | slhci_log_req(usb_device_request_t *r) |
| 3386 | { |
| 3387 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3388 | int req, type, value, index, len; |
| 3389 | |
| 3390 | req = r->bRequest; |
| 3391 | type = r->bmRequestType; |
| 3392 | value = UGETW(r->wValue); |
| 3393 | index = UGETW(r->wIndex); |
| 3394 | len = UGETW(r->wLength); |
| 3395 | |
| 3396 | DDOLOG("request: type %#x" , type, 0, 0, 0); |
| 3397 | DDOLOG("request: r=%d,v=%d,i=%d,l=%d " , req, value, index, len); |
| 3398 | } |
| 3399 | |
| 3400 | void |
| 3401 | slhci_log_dumpreg(void) |
| 3402 | { |
| 3403 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3404 | uint8_t r; |
| 3405 | unsigned int aaddr, alen, baddr, blen; |
| 3406 | static u_char buf[240]; |
| 3407 | |
| 3408 | r = slhci_read(ssc, SL11_E0CTRL); |
| 3409 | DDOLOG("USB A Host Control = %#.2x" , r, 0, 0, 0); |
| 3410 | DDOLOGEPCTRL(r); |
| 3411 | |
| 3412 | aaddr = slhci_read(ssc, SL11_E0ADDR); |
| 3413 | DDOLOG("USB A Base Address = %u" , aaddr, 0,0,0); |
| 3414 | alen = slhci_read(ssc, SL11_E0LEN); |
| 3415 | DDOLOG("USB A Length = %u" , alen, 0,0,0); |
| 3416 | r = slhci_read(ssc, SL11_E0STAT); |
| 3417 | DDOLOG("USB A Status = %#.2x" , r, 0,0,0); |
| 3418 | DDOLOGEPSTAT(r); |
| 3419 | |
| 3420 | r = slhci_read(ssc, SL11_E0CONT); |
| 3421 | DDOLOG("USB A Remaining or Overflow Length = %u" , r, 0,0,0); |
| 3422 | r = slhci_read(ssc, SL11_E1CTRL); |
| 3423 | DDOLOG("USB B Host Control = %#.2x" , r, 0,0,0); |
| 3424 | DDOLOGEPCTRL(r); |
| 3425 | |
| 3426 | baddr = slhci_read(ssc, SL11_E1ADDR); |
| 3427 | DDOLOG("USB B Base Address = %u" , baddr, 0,0,0); |
| 3428 | blen = slhci_read(ssc, SL11_E1LEN); |
| 3429 | DDOLOG("USB B Length = %u" , blen, 0,0,0); |
| 3430 | r = slhci_read(ssc, SL11_E1STAT); |
| 3431 | DDOLOG("USB B Status = %#.2x" , r, 0,0,0); |
| 3432 | DDOLOGEPSTAT(r); |
| 3433 | |
| 3434 | r = slhci_read(ssc, SL11_E1CONT); |
| 3435 | DDOLOG("USB B Remaining or Overflow Length = %u" , r, 0,0,0); |
| 3436 | |
| 3437 | r = slhci_read(ssc, SL11_CTRL); |
| 3438 | DDOLOG("Control = %#.2x" , r, 0,0,0); |
| 3439 | DDOLOGCTRL(r); |
| 3440 | |
| 3441 | r = slhci_read(ssc, SL11_IER); |
| 3442 | DDOLOG("Interrupt Enable = %#.2x" , r, 0,0,0); |
| 3443 | DDOLOGIER(r); |
| 3444 | |
| 3445 | r = slhci_read(ssc, SL11_ISR); |
| 3446 | DDOLOG("Interrupt Status = %#.2x" , r, 0,0,0); |
| 3447 | DDOLOGISR(r); |
| 3448 | |
| 3449 | r = slhci_read(ssc, SL11_REV); |
| 3450 | DDOLOG("Revision = %#.2x" , r, 0,0,0); |
| 3451 | r = slhci_read(ssc, SL811_CSOF); |
| 3452 | DDOLOG("SOF Counter = %#.2x" , r, 0,0,0); |
| 3453 | |
| 3454 | if (alen && aaddr >= SL11_BUFFER_START && aaddr < SL11_BUFFER_END && |
| 3455 | alen <= SL11_MAX_PACKET_SIZE && aaddr + alen <= SL11_BUFFER_END) { |
| 3456 | slhci_read_multi(ssc, aaddr, buf, alen); |
| 3457 | DDOLOG("USBA Buffer: start %u len %u" , aaddr, alen, 0,0); |
| 3458 | DDOLOGBUF(buf, alen); |
| 3459 | } else if (alen) |
| 3460 | DDOLOG("USBA Buffer Invalid" , 0,0,0,0); |
| 3461 | |
| 3462 | if (blen && baddr >= SL11_BUFFER_START && baddr < SL11_BUFFER_END && |
| 3463 | blen <= SL11_MAX_PACKET_SIZE && baddr + blen <= SL11_BUFFER_END) { |
| 3464 | slhci_read_multi(ssc, baddr, buf, blen); |
| 3465 | DDOLOG("USBB Buffer: start %u len %u" , baddr, blen, 0,0); |
| 3466 | DDOLOGBUF(buf, blen); |
| 3467 | } else if (blen) |
| 3468 | DDOLOG("USBB Buffer Invalid" , 0,0,0,0); |
| 3469 | } |
| 3470 | |
| 3471 | void |
| 3472 | slhci_log_xfer(struct usbd_xfer *xfer) |
| 3473 | { |
| 3474 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3475 | DDOLOG("xfer: length=%u, actlen=%u, flags=%#x, timeout=%u," , |
| 3476 | xfer->ux_length, xfer->ux_actlen, xfer->ux_flags, xfer->ux_timeout); |
| 3477 | DDOLOG("buffer=%p" , xfer->ux_buf, 0,0,0); |
| 3478 | slhci_log_req(&xfer->ux_request); |
| 3479 | } |
| 3480 | |
| 3481 | void |
| 3482 | slhci_log_spipe(struct slhci_pipe *spipe) |
| 3483 | { |
| 3484 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3485 | DDOLOG("spipe %p onlists: AP=%d TO=%d XQ=%d" , spipe, |
| 3486 | gcq_onlist(&spipe->ap) ? 1 : 0, |
| 3487 | gcq_onlist(&spipe->to) ? 1 : 0, |
| 3488 | gcq_onlist(&spipe->xq) ? 1 : 0); |
| 3489 | DDOLOG("spipe: xfer %p buffer %p pflags %#x ptype %d" , |
| 3490 | spipe->xfer, spipe->buffer, spipe->pflags, spipe->ptype); |
| 3491 | } |
| 3492 | |
| 3493 | void |
| 3494 | slhci_print_intr(void) |
| 3495 | { |
| 3496 | unsigned int ier, isr; |
| 3497 | ier = slhci_read(ssc, SL11_IER); |
| 3498 | isr = slhci_read(ssc, SL11_ISR); |
| 3499 | printf("IER: %#x ISR: %#x \n" , ier, isr); |
| 3500 | } |
| 3501 | |
| 3502 | #if 0 |
| 3503 | void |
| 3504 | slhci_log_sc(void) |
| 3505 | { |
| 3506 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3507 | |
| 3508 | struct slhci_transfers *t; |
| 3509 | int i; |
| 3510 | |
| 3511 | t = &ssc->sc_transfers; |
| 3512 | |
| 3513 | DDOLOG("Flags=%#x" , t->flags, 0,0,0); |
| 3514 | DDOLOG("a = %p Alen=%d b = %p Blen=%d" , t->spipe[0], t->len[0], |
| 3515 | t->spipe[1], t->len[1]); |
| 3516 | |
| 3517 | for (i=0; i<=Q_MAX; i++) |
| 3518 | DDOLOG("Q %d: %p" , i, gcq_hq(&t->q[i]), 0,0); |
| 3519 | |
| 3520 | DDOLOG("TIMED: %p" , GCQ_ITEM(gcq_hq(&t->to), |
| 3521 | struct slhci_pipe, to), 0,0,0); |
| 3522 | |
| 3523 | DDOLOG("frame=%d rootintr=%p" , t->frame, t->rootintr, 0,0); |
| 3524 | |
| 3525 | DDOLOG("ub_usepolling=%d" , ssc->sc_bus.ub_usepolling, 0, 0, 0); |
| 3526 | } |
| 3527 | |
| 3528 | void |
| 3529 | slhci_log_slreq(struct slhci_pipe *r) |
| 3530 | { |
| 3531 | SLHCIHIST_FUNC(); SLHCIHIST_CALLED(); |
| 3532 | DDOLOG("xfer: %p" , r->xfer, 0,0,0); |
| 3533 | DDOLOG("buffer: %p" , r->buffer, 0,0,0); |
| 3534 | DDOLOG("bustime: %u" , r->bustime, 0,0,0); |
| 3535 | DDOLOG("control: %#x" , r->control, 0,0,0); |
| 3536 | DDOLOGEPCTRL(r->control); |
| 3537 | |
| 3538 | DDOLOG("pid: %#x" , r->tregs[PID], 0,0,0); |
| 3539 | DDOLOG("dev: %u" , r->tregs[DEV], 0,0,0); |
| 3540 | DDOLOG("len: %u" , r->tregs[LEN], 0,0,0); |
| 3541 | |
| 3542 | if (r->xfer) |
| 3543 | slhci_log_xfer(r->xfer); |
| 3544 | } |
| 3545 | #endif |
| 3546 | #endif /* SLHCI_DEBUG */ |
| 3547 | /* End debug functions. */ |
| 3548 | |