1 | /* $NetBSD: ustir.c,v 1.35 2016/07/07 06:55:42 msaitoh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2001 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by David Sainty <David.Sainty@dtsp.co.nz> |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #include <sys/cdefs.h> |
33 | __KERNEL_RCSID(0, "$NetBSD: ustir.c,v 1.35 2016/07/07 06:55:42 msaitoh Exp $" ); |
34 | |
35 | #include <sys/param.h> |
36 | #include <sys/systm.h> |
37 | #include <sys/kernel.h> |
38 | #include <sys/device.h> |
39 | #include <sys/kmem.h> |
40 | #include <sys/conf.h> |
41 | #include <sys/file.h> |
42 | #include <sys/poll.h> |
43 | #include <sys/select.h> |
44 | #include <sys/proc.h> |
45 | #include <sys/kthread.h> |
46 | |
47 | #ifdef USTIR_DEBUG_IOCTLS |
48 | #include <sys/ioctl.h> |
49 | #include <dev/usb/ustir.h> |
50 | #endif |
51 | |
52 | #include <dev/usb/usb.h> |
53 | #include <dev/usb/usbdevs.h> |
54 | #include <dev/usb/usbdi.h> |
55 | #include <dev/usb/usbdi_util.h> |
56 | #include <dev/usb/ustirreg.h> |
57 | |
58 | #include <dev/ir/ir.h> |
59 | #include <dev/ir/irdaio.h> |
60 | #include <dev/ir/irframevar.h> |
61 | #include <dev/ir/sir.h> |
62 | |
63 | #ifdef USTIR_DEBUG |
64 | #define DPRINTFN(n,x) if (ustirdebug>(n)) printf x |
65 | int ustirdebug = 0; |
66 | #else |
67 | #define DPRINTFN(n,x) |
68 | #endif |
69 | |
70 | /* Max size with framing. */ |
71 | #define MAX_USTIR_OUTPUT_FRAME (2*IRDA_MAX_FRAME_SIZE + IRDA_MAX_EBOFS + STIR_OUTPUT_HEADER_SIZE + 4) |
72 | |
73 | #define USTIR_NSPEEDS 9 |
74 | struct ustir_speedrec { |
75 | unsigned int speed; |
76 | unsigned int config; |
77 | }; |
78 | |
79 | Static struct ustir_speedrec const ustir_speeds[USTIR_NSPEEDS] = { |
80 | { 4000000, STIR_BRMODE_4000000 }, |
81 | { 1152000, STIR_BRMODE_1152000 }, |
82 | { 576000, STIR_BRMODE_576000 }, |
83 | { 115200, STIR_BRMODE_115200 }, |
84 | { 57600, STIR_BRMODE_57600 }, |
85 | { 38400, STIR_BRMODE_38400 }, |
86 | { 19200, STIR_BRMODE_19200 }, |
87 | { 9600, STIR_BRMODE_9600 }, |
88 | { 2400, STIR_BRMODE_2400 } |
89 | }; |
90 | |
91 | struct ustir_softc { |
92 | device_t sc_dev; |
93 | struct usbd_device *sc_udev; |
94 | struct usbd_interface *sc_iface; |
95 | |
96 | uint8_t *sc_ur_buf; /* Unencapsulated frame */ |
97 | u_int sc_ur_framelen; |
98 | |
99 | uint8_t *sc_rd_buf; /* Raw incoming data stream */ |
100 | size_t sc_rd_index; |
101 | int sc_rd_addr; |
102 | struct usbd_pipe *sc_rd_pipe; |
103 | struct usbd_xfer *sc_rd_xfer; |
104 | u_int sc_rd_count; |
105 | int sc_rd_readinprogress; |
106 | u_int sc_rd_expectdataticks; |
107 | u_char sc_rd_err; |
108 | struct framestate sc_framestate; |
109 | struct lwp *sc_thread; |
110 | struct selinfo sc_rd_sel; |
111 | |
112 | uint8_t *sc_wr_buf; |
113 | int sc_wr_addr; |
114 | int sc_wr_stalewrite; |
115 | struct usbd_xfer *sc_wr_xfer; |
116 | struct usbd_pipe *sc_wr_pipe; |
117 | struct selinfo sc_wr_sel; |
118 | |
119 | enum { |
120 | udir_input, /* Receiving data */ |
121 | udir_output, /* Transmitting data */ |
122 | udir_stalled, /* Error preventing data flow */ |
123 | udir_idle /* Neither receiving nor transmitting */ |
124 | } sc_direction; |
125 | |
126 | struct ustir_speedrec const *sc_speedrec; |
127 | |
128 | device_t sc_child; |
129 | struct irda_params sc_params; |
130 | |
131 | int sc_refcnt; |
132 | char sc_closing; |
133 | char sc_dying; |
134 | }; |
135 | |
136 | /* True if we cannot safely read data from the device */ |
137 | #define USTIR_BLOCK_RX_DATA(sc) ((sc)->sc_ur_framelen != 0) |
138 | |
139 | #define USTIR_WR_TIMEOUT 200 |
140 | |
141 | Static int ustir_activate(device_t, enum devact); |
142 | Static int ustir_open(void *, int, int, struct lwp *); |
143 | Static int ustir_close(void *, int, int, struct lwp *); |
144 | Static int ustir_read(void *, struct uio *, int); |
145 | Static int ustir_write(void *, struct uio *, int); |
146 | Static int ustir_set_params(void *, struct irda_params *); |
147 | Static int ustir_get_speeds(void *, int *); |
148 | Static int ustir_get_turnarounds(void *, int *); |
149 | Static int ustir_poll(void *, int, struct lwp *); |
150 | Static int ustir_kqfilter(void *, struct knote *); |
151 | |
152 | #ifdef USTIR_DEBUG_IOCTLS |
153 | Static int ustir_ioctl(void *, u_long, void *, int, struct lwp *); |
154 | #endif |
155 | |
156 | Static struct irframe_methods const ustir_methods = { |
157 | ustir_open, ustir_close, ustir_read, ustir_write, ustir_poll, |
158 | ustir_kqfilter, ustir_set_params, ustir_get_speeds, |
159 | ustir_get_turnarounds, |
160 | #ifdef USTIR_DEBUG_IOCTLS |
161 | ustir_ioctl |
162 | #endif |
163 | }; |
164 | |
165 | Static void ustir_rd_cb(struct usbd_xfer *, void *, usbd_status); |
166 | Static usbd_status ustir_start_read(struct ustir_softc *); |
167 | Static void ustir_periodic(struct ustir_softc *); |
168 | Static void ustir_thread(void *); |
169 | |
170 | static usbd_status |
171 | ustir_read_reg(struct ustir_softc *sc, unsigned int reg, uint8_t *data) |
172 | { |
173 | usb_device_request_t req; |
174 | |
175 | req.bmRequestType = UT_READ_VENDOR_DEVICE; |
176 | req.bRequest = STIR_CMD_READMULTIREG; |
177 | USETW(req.wValue, 0); |
178 | USETW(req.wIndex, reg); |
179 | USETW(req.wLength, 1); |
180 | |
181 | return usbd_do_request(sc->sc_udev, &req, data); |
182 | } |
183 | |
184 | static usbd_status |
185 | ustir_write_reg(struct ustir_softc *sc, unsigned int reg, uint8_t data) |
186 | { |
187 | usb_device_request_t req; |
188 | |
189 | req.bmRequestType = UT_WRITE_VENDOR_DEVICE; |
190 | req.bRequest = STIR_CMD_WRITESINGLEREG; |
191 | USETW(req.wValue, data); |
192 | USETW(req.wIndex, reg); |
193 | USETW(req.wLength, 0); |
194 | |
195 | return usbd_do_request(sc->sc_udev, &req, NULL); |
196 | } |
197 | |
198 | #ifdef USTIR_DEBUG |
199 | static void |
200 | ustir_dumpdata(uint8_t const *data, size_t dlen, char const *desc) |
201 | { |
202 | size_t bdindex; |
203 | printf("%s: (%lx)" , desc, (unsigned long)dlen); |
204 | for (bdindex = 0; bdindex < dlen; bdindex++) |
205 | printf(" %02x" , (unsigned int)data[bdindex]); |
206 | printf("\n" ); |
207 | } |
208 | #endif |
209 | |
210 | int ustir_match(device_t, cfdata_t, void *); |
211 | void ustir_attach(device_t, device_t, void *); |
212 | void ustir_childdet(device_t, device_t); |
213 | int ustir_detach(device_t, int); |
214 | int ustir_activate(device_t, enum devact); |
215 | extern struct cfdriver ustir_cd; |
216 | CFATTACH_DECL2_NEW(ustir, sizeof(struct ustir_softc), ustir_match, |
217 | ustir_attach, ustir_detach, ustir_activate, NULL, ustir_childdet); |
218 | |
219 | int |
220 | ustir_match(device_t parent, cfdata_t match, void *aux) |
221 | { |
222 | struct usb_attach_arg *uaa = aux; |
223 | |
224 | DPRINTFN(50,("ustir_match\n" )); |
225 | |
226 | if (uaa->uaa_vendor == USB_VENDOR_SIGMATEL && |
227 | uaa->uaa_product == USB_PRODUCT_SIGMATEL_IRDA) |
228 | return UMATCH_VENDOR_PRODUCT; |
229 | |
230 | return UMATCH_NONE; |
231 | } |
232 | |
233 | void |
234 | ustir_attach(device_t parent, device_t self, void *aux) |
235 | { |
236 | struct ustir_softc *sc = device_private(self); |
237 | struct usb_attach_arg *uaa = aux; |
238 | struct usbd_device *dev = uaa->uaa_device; |
239 | struct usbd_interface *iface; |
240 | char *devinfop; |
241 | usb_endpoint_descriptor_t *ed; |
242 | uint8_t epcount; |
243 | int i; |
244 | struct ir_attach_args ia; |
245 | |
246 | DPRINTFN(10,("ustir_attach: sc=%p\n" , sc)); |
247 | |
248 | sc->sc_dev = self; |
249 | |
250 | aprint_naive("\n" ); |
251 | aprint_normal("\n" ); |
252 | |
253 | devinfop = usbd_devinfo_alloc(dev, 0); |
254 | aprint_normal_dev(self, "%s\n" , devinfop); |
255 | usbd_devinfo_free(devinfop); |
256 | |
257 | if (usbd_set_config_index(dev, 0, 1) |
258 | || usbd_device2interface_handle(dev, 0, &iface)) { |
259 | aprint_error_dev(self, "Configuration failed\n" ); |
260 | return; |
261 | } |
262 | |
263 | sc->sc_udev = dev; |
264 | sc->sc_iface = iface; |
265 | |
266 | epcount = 0; |
267 | (void)usbd_endpoint_count(iface, &epcount); |
268 | |
269 | sc->sc_rd_addr = -1; |
270 | sc->sc_wr_addr = -1; |
271 | for (i = 0; i < epcount; i++) { |
272 | ed = usbd_interface2endpoint_descriptor(iface, i); |
273 | if (ed == NULL) { |
274 | aprint_error_dev(self, "couldn't get ep %d\n" , i); |
275 | return; |
276 | } |
277 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
278 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { |
279 | sc->sc_rd_addr = ed->bEndpointAddress; |
280 | } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && |
281 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { |
282 | sc->sc_wr_addr = ed->bEndpointAddress; |
283 | } |
284 | } |
285 | if (sc->sc_rd_addr == -1 || sc->sc_wr_addr == -1) { |
286 | aprint_error_dev(self, "missing endpoint\n" ); |
287 | return; |
288 | } |
289 | |
290 | DPRINTFN(10, ("ustir_attach: %p\n" , sc->sc_udev)); |
291 | |
292 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); |
293 | |
294 | ia.ia_type = IR_TYPE_IRFRAME; |
295 | ia.ia_methods = &ustir_methods; |
296 | ia.ia_handle = sc; |
297 | |
298 | sc->sc_child = config_found(self, &ia, ir_print); |
299 | selinit(&sc->sc_rd_sel); |
300 | selinit(&sc->sc_wr_sel); |
301 | |
302 | return; |
303 | } |
304 | |
305 | void |
306 | ustir_childdet(device_t self, device_t child) |
307 | { |
308 | struct ustir_softc *sc = device_private(self); |
309 | |
310 | KASSERT(sc->sc_child == child); |
311 | sc->sc_child = NULL; |
312 | } |
313 | |
314 | int |
315 | ustir_detach(device_t self, int flags) |
316 | { |
317 | struct ustir_softc *sc = device_private(self); |
318 | int s; |
319 | int rv = 0; |
320 | |
321 | DPRINTFN(0, ("ustir_detach: sc=%p flags=%d\n" , sc, flags)); |
322 | |
323 | sc->sc_closing = sc->sc_dying = 1; |
324 | |
325 | wakeup(&sc->sc_thread); |
326 | |
327 | while (sc->sc_thread != NULL) |
328 | tsleep(&sc->sc_closing, PWAIT, "usircl" , 0); |
329 | |
330 | /* Abort all pipes. Causes processes waiting for transfer to wake. */ |
331 | if (sc->sc_rd_pipe != NULL) { |
332 | usbd_abort_pipe(sc->sc_rd_pipe); |
333 | } |
334 | if (sc->sc_wr_pipe != NULL) { |
335 | usbd_abort_pipe(sc->sc_wr_pipe); |
336 | } |
337 | if (sc->sc_rd_xfer != NULL) { |
338 | usbd_destroy_xfer(sc->sc_rd_xfer); |
339 | sc->sc_rd_xfer = NULL; |
340 | sc->sc_rd_buf = NULL; |
341 | } |
342 | if (sc->sc_wr_xfer != NULL) { |
343 | usbd_destroy_xfer(sc->sc_wr_xfer); |
344 | sc->sc_wr_xfer = NULL; |
345 | sc->sc_wr_buf = NULL; |
346 | } |
347 | if (sc->sc_rd_pipe != NULL) { |
348 | usbd_close_pipe(sc->sc_rd_pipe); |
349 | sc->sc_rd_pipe = NULL; |
350 | } |
351 | if (sc->sc_wr_pipe != NULL) { |
352 | usbd_close_pipe(sc->sc_wr_pipe); |
353 | sc->sc_wr_pipe = NULL; |
354 | } |
355 | wakeup(&sc->sc_ur_framelen); |
356 | wakeup(&sc->sc_wr_buf); |
357 | |
358 | s = splusb(); |
359 | if (--sc->sc_refcnt >= 0) { |
360 | /* Wait for processes to go away. */ |
361 | usb_detach_waitold(sc->sc_dev); |
362 | } |
363 | splx(s); |
364 | |
365 | if (sc->sc_child != NULL) |
366 | rv = config_detach(sc->sc_child, flags); |
367 | |
368 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); |
369 | |
370 | seldestroy(&sc->sc_rd_sel); |
371 | seldestroy(&sc->sc_wr_sel); |
372 | |
373 | return rv; |
374 | } |
375 | |
376 | /* Returns 0 if more data required, 1 if a complete frame was extracted */ |
377 | static int |
378 | deframe_rd_ur(struct ustir_softc *sc) |
379 | { |
380 | while (sc->sc_rd_index < sc->sc_rd_count) { |
381 | uint8_t const *buf; |
382 | size_t buflen; |
383 | enum frameresult fresult; |
384 | |
385 | buf = &sc->sc_rd_buf[sc->sc_rd_index]; |
386 | buflen = sc->sc_rd_count - sc->sc_rd_index; |
387 | |
388 | fresult = deframe_process(&sc->sc_framestate, &buf, &buflen); |
389 | |
390 | sc->sc_rd_index = sc->sc_rd_count - buflen; |
391 | |
392 | DPRINTFN(1,("%s: result=%d\n" , __func__, (int)fresult)); |
393 | |
394 | switch (fresult) { |
395 | case FR_IDLE: |
396 | case FR_INPROGRESS: |
397 | case FR_FRAMEBADFCS: |
398 | case FR_FRAMEMALFORMED: |
399 | case FR_BUFFEROVERRUN: |
400 | break; |
401 | case FR_FRAMEOK: |
402 | sc->sc_ur_framelen = sc->sc_framestate.bufindex; |
403 | wakeup(&sc->sc_ur_framelen); /* XXX should use flag */ |
404 | selnotify(&sc->sc_rd_sel, 0, 0); |
405 | return 1; |
406 | } |
407 | } |
408 | |
409 | /* Reset indices into USB-side buffer */ |
410 | sc->sc_rd_index = sc->sc_rd_count = 0; |
411 | |
412 | return 0; |
413 | } |
414 | |
415 | /* |
416 | * Direction transitions: |
417 | * |
418 | * ustir_periodic() can switch the direction from: |
419 | * |
420 | * output -> idle |
421 | * output -> stalled |
422 | * stalled -> idle |
423 | * idle -> input |
424 | * |
425 | * ustir_rd_cb() can switch the direction from: |
426 | * |
427 | * input -> stalled |
428 | * input -> idle |
429 | * |
430 | * ustir_write() can switch the direction from: |
431 | * |
432 | * idle -> output |
433 | */ |
434 | Static void |
435 | ustir_periodic(struct ustir_softc *sc) |
436 | { |
437 | DPRINTFN(60, ("%s: direction = %d\n" , |
438 | __func__, sc->sc_direction)); |
439 | |
440 | if (sc->sc_direction == udir_output || |
441 | sc->sc_direction == udir_stalled) { |
442 | usbd_status err; |
443 | uint8_t regval; |
444 | |
445 | DPRINTFN(60, ("%s: reading status register\n" , |
446 | __func__)); |
447 | |
448 | err = ustir_read_reg(sc, STIR_REG_STATUS, |
449 | ®val); |
450 | if (err != USBD_NORMAL_COMPLETION) { |
451 | aprint_error_dev(sc->sc_dev, |
452 | "status register read failed: %s\n" , |
453 | usbd_errstr(err)); |
454 | } else { |
455 | DPRINTFN(10, ("%s: status register = 0x%x\n" , |
456 | __func__, |
457 | (unsigned int)regval)); |
458 | if (sc->sc_direction == udir_output && |
459 | !(regval & STIR_RSTATUS_FFDIR)) |
460 | /* Output has completed */ |
461 | sc->sc_direction = udir_idle; |
462 | if (regval & STIR_RSTATUS_FFOVER) { |
463 | /* |
464 | * On an overrun the FIFO hangs, and |
465 | * any data bulk transfers will stall. |
466 | * Reset the FIFO. |
467 | */ |
468 | sc->sc_direction = udir_stalled; |
469 | |
470 | DPRINTFN(10, ("%s: clearing FIFO error\n" , |
471 | __func__)); |
472 | |
473 | err = ustir_write_reg(sc, STIR_REG_STATUS, |
474 | STIR_RSTATUS_FFCLR); |
475 | /* XXX if we fail partway through |
476 | * this, we may not recover? */ |
477 | if (err == USBD_NORMAL_COMPLETION) |
478 | err = ustir_write_reg(sc, |
479 | STIR_REG_STATUS, |
480 | 0); |
481 | if (err != USBD_NORMAL_COMPLETION) { |
482 | aprint_error_dev(sc->sc_dev, |
483 | "FIFO reset failed: %s\n" , |
484 | usbd_errstr(err)); |
485 | } else { |
486 | /* FIFO reset */ |
487 | sc->sc_direction = udir_idle; |
488 | } |
489 | } |
490 | } |
491 | } |
492 | |
493 | if (sc->sc_wr_stalewrite && sc->sc_direction == udir_idle) { |
494 | /* |
495 | * In a stale write case, we need to check if the |
496 | * write has completed. Once that has happened, the |
497 | * write is no longer stale. |
498 | * |
499 | * But note that we may immediately start a read poll... |
500 | */ |
501 | sc->sc_wr_stalewrite = 0; |
502 | wakeup(&sc->sc_wr_buf); |
503 | } |
504 | |
505 | if (!sc->sc_rd_readinprogress && |
506 | (sc->sc_direction == udir_idle || |
507 | sc->sc_direction == udir_input)) |
508 | /* Do a read poll if appropriate... */ |
509 | ustir_start_read(sc); |
510 | } |
511 | |
512 | Static void |
513 | ustir_thread(void *arg) |
514 | { |
515 | struct ustir_softc *sc = arg; |
516 | |
517 | DPRINTFN(20, ("%s: starting polling thread\n" , __func__)); |
518 | |
519 | while (!sc->sc_closing) { |
520 | if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc)) |
521 | ustir_periodic(sc); |
522 | |
523 | if (!sc->sc_closing) { |
524 | int error; |
525 | error = tsleep(&sc->sc_thread, PWAIT, |
526 | "ustir" , hz / 10); |
527 | if (error == EWOULDBLOCK && |
528 | sc->sc_rd_expectdataticks > 0) |
529 | /* |
530 | * After a timeout decrement the tick |
531 | * counter within which time we expect |
532 | * data to arrive if we are receiving |
533 | * data... |
534 | */ |
535 | sc->sc_rd_expectdataticks--; |
536 | } |
537 | } |
538 | |
539 | DPRINTFN(20, ("%s: exiting polling thread\n" , __func__)); |
540 | |
541 | sc->sc_thread = NULL; |
542 | |
543 | wakeup(&sc->sc_closing); |
544 | |
545 | if (--sc->sc_refcnt < 0) |
546 | usb_detach_wakeupold(sc->sc_dev); |
547 | |
548 | kthread_exit(0); |
549 | } |
550 | |
551 | Static void |
552 | ustir_rd_cb(struct usbd_xfer *xfer, void *priv, |
553 | usbd_status status) |
554 | { |
555 | struct ustir_softc *sc = priv; |
556 | uint32_t size; |
557 | |
558 | DPRINTFN(60, ("%s: sc=%p\n" , __func__, sc)); |
559 | |
560 | /* Read is no longer in progress */ |
561 | sc->sc_rd_readinprogress = 0; |
562 | |
563 | if (status == USBD_CANCELLED || sc->sc_closing) /* this is normal */ |
564 | return; |
565 | if (status) { |
566 | size = 0; |
567 | sc->sc_rd_err = 1; |
568 | |
569 | if (sc->sc_direction == udir_input || |
570 | sc->sc_direction == udir_idle) { |
571 | /* |
572 | * Receive error, probably need to clear error |
573 | * condition. |
574 | */ |
575 | sc->sc_direction = udir_stalled; |
576 | } |
577 | } else { |
578 | usbd_get_xfer_status(xfer, NULL, NULL, &size, NULL); |
579 | } |
580 | |
581 | sc->sc_rd_index = 0; |
582 | sc->sc_rd_count = size; |
583 | |
584 | DPRINTFN(((size > 0 || sc->sc_rd_err != 0) ? 20 : 60), |
585 | ("%s: sc=%p size=%u, err=%d\n" , __func__, |
586 | sc, size, sc->sc_rd_err)); |
587 | |
588 | #ifdef USTIR_DEBUG |
589 | if (ustirdebug >= 20 && size > 0) |
590 | ustir_dumpdata(sc->sc_rd_buf, size, __func__); |
591 | #endif |
592 | |
593 | if (!deframe_rd_ur(sc)) { |
594 | if (!deframe_isclear(&sc->sc_framestate) && size == 0 && |
595 | sc->sc_rd_expectdataticks == 0) { |
596 | /* |
597 | * Expected data, but didn't get it |
598 | * within expected time... |
599 | */ |
600 | DPRINTFN(5,("%s: incoming packet timeout\n" , |
601 | __func__)); |
602 | deframe_clear(&sc->sc_framestate); |
603 | } else if (size > 0) { |
604 | /* |
605 | * If we also received actual data, reset the |
606 | * data read timeout and wake up the possibly |
607 | * sleeping thread... |
608 | */ |
609 | sc->sc_rd_expectdataticks = 2; |
610 | wakeup(&sc->sc_thread); |
611 | } |
612 | } |
613 | |
614 | /* |
615 | * Check if incoming data has stopped, or that we cannot |
616 | * safely read any more data. In the case of the latter we |
617 | * must switch to idle so that a write will not block... |
618 | */ |
619 | if (sc->sc_direction == udir_input && |
620 | ((size == 0 && sc->sc_rd_expectdataticks == 0) || |
621 | USTIR_BLOCK_RX_DATA(sc))) { |
622 | DPRINTFN(8,("%s: idling on packet timeout, " |
623 | "complete frame, or no data\n" , __func__)); |
624 | sc->sc_direction = udir_idle; |
625 | |
626 | /* Wake up for possible output */ |
627 | wakeup(&sc->sc_wr_buf); |
628 | selnotify(&sc->sc_wr_sel, 0, 0); |
629 | } |
630 | } |
631 | |
632 | Static usbd_status |
633 | ustir_start_read(struct ustir_softc *sc) |
634 | { |
635 | usbd_status err; |
636 | |
637 | DPRINTFN(60,("%s: sc=%p, size=%d\n" , __func__, sc, |
638 | sc->sc_params.maxsize)); |
639 | |
640 | if (sc->sc_dying) |
641 | return USBD_IOERROR; |
642 | |
643 | if (USTIR_BLOCK_RX_DATA(sc) || deframe_rd_ur(sc)) { |
644 | /* |
645 | * Can't start reading just yet. Since we aren't |
646 | * going to start a read, have to switch direction to |
647 | * idle. |
648 | */ |
649 | sc->sc_direction = udir_idle; |
650 | return USBD_NORMAL_COMPLETION; |
651 | } |
652 | |
653 | /* Starting a read... */ |
654 | sc->sc_rd_readinprogress = 1; |
655 | sc->sc_direction = udir_input; |
656 | |
657 | if (sc->sc_rd_err) { |
658 | sc->sc_rd_err = 0; |
659 | DPRINTFN(0, ("%s: clear stall\n" , __func__)); |
660 | usbd_clear_endpoint_stall(sc->sc_rd_pipe); |
661 | } |
662 | |
663 | usbd_setup_xfer(sc->sc_rd_xfer, sc, sc->sc_rd_buf, |
664 | sc->sc_params.maxsize, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, |
665 | ustir_rd_cb); |
666 | err = usbd_transfer(sc->sc_rd_xfer); |
667 | if (err != USBD_IN_PROGRESS) { |
668 | DPRINTFN(0, ("%s: err=%d\n" , __func__, (int)err)); |
669 | return err; |
670 | } |
671 | return USBD_NORMAL_COMPLETION; |
672 | } |
673 | |
674 | Static int |
675 | ustir_activate(device_t self, enum devact act) |
676 | { |
677 | struct ustir_softc *sc = device_private(self); |
678 | |
679 | switch (act) { |
680 | case DVACT_DEACTIVATE: |
681 | sc->sc_dying = 1; |
682 | return 0; |
683 | default: |
684 | return EOPNOTSUPP; |
685 | } |
686 | } |
687 | |
688 | /* ARGSUSED */ |
689 | Static int |
690 | ustir_open(void *h, int flag, int mode, |
691 | struct lwp *l) |
692 | { |
693 | struct ustir_softc *sc = h; |
694 | int error; |
695 | usbd_status err; |
696 | |
697 | DPRINTFN(0, ("%s: sc=%p\n" , __func__, sc)); |
698 | |
699 | err = usbd_open_pipe(sc->sc_iface, sc->sc_rd_addr, 0, &sc->sc_rd_pipe); |
700 | if (err != USBD_NORMAL_COMPLETION) { |
701 | error = EIO; |
702 | goto bad1; |
703 | } |
704 | err = usbd_open_pipe(sc->sc_iface, sc->sc_wr_addr, 0, &sc->sc_wr_pipe); |
705 | if (err != USBD_NORMAL_COMPLETION) { |
706 | error = EIO; |
707 | goto bad2; |
708 | } |
709 | error = usbd_create_xfer(sc->sc_rd_pipe, IRDA_MAX_FRAME_SIZE, |
710 | USBD_SHORT_XFER_OK, 0, &sc->sc_rd_xfer); |
711 | if (error) |
712 | goto bad3; |
713 | sc->sc_rd_buf = usbd_get_buffer(sc->sc_rd_xfer); |
714 | |
715 | error = usbd_create_xfer(sc->sc_wr_pipe, |
716 | IRDA_MAX_FRAME_SIZE + STIR_OUTPUT_HEADER_SIZE, |
717 | USBD_FORCE_SHORT_XFER, 0, &sc->sc_wr_xfer); |
718 | if (error) |
719 | goto bad4; |
720 | sc->sc_wr_buf = usbd_get_buffer(sc->sc_wr_xfer); |
721 | |
722 | sc->sc_ur_buf = kmem_alloc(IRDA_MAX_FRAME_SIZE, KM_SLEEP); |
723 | if (sc->sc_ur_buf == NULL) { |
724 | error = ENOMEM; |
725 | goto bad5; |
726 | } |
727 | |
728 | sc->sc_rd_index = sc->sc_rd_count = 0; |
729 | sc->sc_closing = 0; |
730 | sc->sc_rd_readinprogress = 0; |
731 | sc->sc_rd_expectdataticks = 0; |
732 | sc->sc_ur_framelen = 0; |
733 | sc->sc_rd_err = 0; |
734 | sc->sc_wr_stalewrite = 0; |
735 | sc->sc_speedrec = NULL; |
736 | sc->sc_direction = udir_idle; |
737 | sc->sc_params.speed = 0; |
738 | sc->sc_params.ebofs = 0; |
739 | sc->sc_params.maxsize = IRDA_MAX_FRAME_SIZE; |
740 | |
741 | deframe_init(&sc->sc_framestate, sc->sc_ur_buf, IRDA_MAX_FRAME_SIZE); |
742 | |
743 | /* Increment reference for thread */ |
744 | sc->sc_refcnt++; |
745 | |
746 | error = kthread_create(PRI_NONE, 0, NULL, ustir_thread, sc, |
747 | &sc->sc_thread, "%s" , device_xname(sc->sc_dev)); |
748 | if (error) { |
749 | sc->sc_refcnt--; |
750 | goto bad5; |
751 | } |
752 | |
753 | return 0; |
754 | |
755 | bad5: |
756 | usbd_destroy_xfer(sc->sc_wr_xfer); |
757 | sc->sc_wr_xfer = NULL; |
758 | bad4: |
759 | usbd_destroy_xfer(sc->sc_rd_xfer); |
760 | sc->sc_rd_xfer = NULL; |
761 | bad3: |
762 | usbd_close_pipe(sc->sc_wr_pipe); |
763 | sc->sc_wr_pipe = NULL; |
764 | bad2: |
765 | usbd_close_pipe(sc->sc_rd_pipe); |
766 | sc->sc_rd_pipe = NULL; |
767 | bad1: |
768 | return error; |
769 | } |
770 | |
771 | /* ARGSUSED */ |
772 | Static int |
773 | ustir_close(void *h, int flag, int mode, |
774 | struct lwp *l) |
775 | { |
776 | struct ustir_softc *sc = h; |
777 | |
778 | DPRINTFN(0, ("%s: sc=%p\n" , __func__, sc)); |
779 | |
780 | sc->sc_refcnt++; |
781 | |
782 | sc->sc_rd_readinprogress = 1; |
783 | sc->sc_closing = 1; |
784 | |
785 | wakeup(&sc->sc_thread); |
786 | |
787 | while (sc->sc_thread != NULL) |
788 | tsleep(&sc->sc_closing, PWAIT, "usircl" , 0); |
789 | |
790 | if (sc->sc_rd_pipe != NULL) { |
791 | usbd_abort_pipe(sc->sc_rd_pipe); |
792 | sc->sc_rd_pipe = NULL; |
793 | } |
794 | if (sc->sc_wr_pipe != NULL) { |
795 | usbd_abort_pipe(sc->sc_wr_pipe); |
796 | sc->sc_wr_pipe = NULL; |
797 | } |
798 | if (sc->sc_rd_xfer != NULL) { |
799 | usbd_destroy_xfer(sc->sc_rd_xfer); |
800 | sc->sc_rd_xfer = NULL; |
801 | sc->sc_rd_buf = NULL; |
802 | } |
803 | if (sc->sc_wr_xfer != NULL) { |
804 | usbd_destroy_xfer(sc->sc_wr_xfer); |
805 | sc->sc_wr_xfer = NULL; |
806 | sc->sc_wr_buf = NULL; |
807 | } |
808 | if (sc->sc_ur_buf != NULL) { |
809 | kmem_free(sc->sc_ur_buf, IRDA_MAX_FRAME_SIZE); |
810 | sc->sc_ur_buf = NULL; |
811 | } |
812 | if (sc->sc_rd_pipe != NULL) { |
813 | usbd_close_pipe(sc->sc_rd_pipe); |
814 | sc->sc_rd_pipe = NULL; |
815 | } |
816 | if (sc->sc_wr_pipe != NULL) { |
817 | usbd_close_pipe(sc->sc_wr_pipe); |
818 | sc->sc_wr_pipe = NULL; |
819 | } |
820 | |
821 | if (--sc->sc_refcnt < 0) |
822 | usb_detach_wakeupold(sc->sc_dev); |
823 | |
824 | return 0; |
825 | } |
826 | |
827 | /* ARGSUSED */ |
828 | Static int |
829 | ustir_read(void *h, struct uio *uio, int flag) |
830 | { |
831 | struct ustir_softc *sc = h; |
832 | int s; |
833 | int error; |
834 | u_int uframelen; |
835 | |
836 | DPRINTFN(1,("%s: sc=%p\n" , __func__, sc)); |
837 | |
838 | if (sc->sc_dying) |
839 | return EIO; |
840 | |
841 | #ifdef DIAGNOSTIC |
842 | if (sc->sc_rd_buf == NULL) |
843 | return EINVAL; |
844 | #endif |
845 | |
846 | sc->sc_refcnt++; |
847 | |
848 | if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc)) |
849 | /* Possibly wake up polling thread */ |
850 | wakeup(&sc->sc_thread); |
851 | |
852 | do { |
853 | s = splusb(); |
854 | while (sc->sc_ur_framelen == 0) { |
855 | DPRINTFN(5,("%s: calling tsleep()\n" , __func__)); |
856 | error = tsleep(&sc->sc_ur_framelen, PZERO | PCATCH, |
857 | "usirrd" , 0); |
858 | if (sc->sc_dying) |
859 | error = EIO; |
860 | if (error) { |
861 | splx(s); |
862 | DPRINTFN(0, ("%s: tsleep() = %d\n" , |
863 | __func__, error)); |
864 | goto ret; |
865 | } |
866 | } |
867 | splx(s); |
868 | |
869 | uframelen = sc->sc_ur_framelen; |
870 | DPRINTFN(1,("%s: sc=%p framelen=%u, hdr=0x%02x\n" , |
871 | __func__, sc, uframelen, sc->sc_ur_buf[0])); |
872 | if (uframelen > uio->uio_resid) |
873 | error = EINVAL; |
874 | else |
875 | error = uiomove(sc->sc_ur_buf, uframelen, uio); |
876 | sc->sc_ur_framelen = 0; |
877 | |
878 | if (!deframe_rd_ur(sc) && uframelen > 0) { |
879 | /* |
880 | * Need to wait for another read to obtain a |
881 | * complete frame... If we also obtained |
882 | * actual data, wake up the possibly sleeping |
883 | * thread immediately... |
884 | */ |
885 | wakeup(&sc->sc_thread); |
886 | } |
887 | } while (uframelen == 0); |
888 | |
889 | DPRINTFN(1,("%s: return %d\n" , __func__, error)); |
890 | |
891 | ret: |
892 | if (--sc->sc_refcnt < 0) |
893 | usb_detach_wakeupold(sc->sc_dev); |
894 | return error; |
895 | } |
896 | |
897 | /* ARGSUSED */ |
898 | Static int |
899 | ustir_write(void *h, struct uio *uio, int flag) |
900 | { |
901 | struct ustir_softc *sc = h; |
902 | usbd_status err; |
903 | uint32_t wrlen; |
904 | int error, sirlength; |
905 | uint8_t *wrbuf; |
906 | int s; |
907 | |
908 | DPRINTFN(1,("%s: sc=%p\n" , __func__, sc)); |
909 | |
910 | if (sc->sc_dying) |
911 | return EIO; |
912 | |
913 | #ifdef DIAGNOSTIC |
914 | if (sc->sc_wr_buf == NULL) |
915 | return EINVAL; |
916 | #endif |
917 | |
918 | wrlen = uio->uio_resid; |
919 | if (wrlen > sc->sc_params.maxsize) |
920 | return EINVAL; |
921 | |
922 | sc->sc_refcnt++; |
923 | |
924 | if (!USTIR_BLOCK_RX_DATA(sc)) { |
925 | /* |
926 | * If reads are not blocked, determine what action we |
927 | * should potentially take... |
928 | */ |
929 | if (sc->sc_direction == udir_output) { |
930 | /* |
931 | * If the last operation was an output, wait for the |
932 | * polling thread to check for incoming data. |
933 | */ |
934 | sc->sc_wr_stalewrite = 1; |
935 | wakeup(&sc->sc_thread); |
936 | } else if (!sc->sc_rd_readinprogress && |
937 | (sc->sc_direction == udir_idle || |
938 | sc->sc_direction == udir_input)) { |
939 | /* If idle, check for input before outputting */ |
940 | ustir_start_read(sc); |
941 | } |
942 | } |
943 | |
944 | s = splusb(); |
945 | while (sc->sc_wr_stalewrite || |
946 | (sc->sc_direction != udir_output && |
947 | sc->sc_direction != udir_idle)) { |
948 | DPRINTFN(5, ("%s: sc=%p stalewrite=%d direction=%d, " |
949 | "calling tsleep()\n" , __func__, |
950 | sc, sc->sc_wr_stalewrite, sc->sc_direction)); |
951 | error = tsleep(&sc->sc_wr_buf, PZERO | PCATCH, |
952 | "usirwr" , 0); |
953 | if (sc->sc_dying) |
954 | error = EIO; |
955 | if (error) { |
956 | splx(s); |
957 | DPRINTFN(0, ("%s: tsleep() = %d\n" , __func__, |
958 | error)); |
959 | goto ret; |
960 | } |
961 | } |
962 | splx(s); |
963 | |
964 | wrbuf = sc->sc_wr_buf; |
965 | |
966 | /* Build header */ |
967 | wrbuf[0] = STIR_OUTPUT_HEADER_BYTE0; |
968 | wrbuf[1] = STIR_OUTPUT_HEADER_BYTE1; |
969 | |
970 | sirlength = irda_sir_frame(&wrbuf[STIR_OUTPUT_HEADER_SIZE], |
971 | MAX_USTIR_OUTPUT_FRAME - |
972 | STIR_OUTPUT_HEADER_SIZE, |
973 | uio, sc->sc_params.ebofs); |
974 | if (sirlength < 0) { |
975 | error = -sirlength; |
976 | } else { |
977 | uint32_t btlen; |
978 | |
979 | DPRINTFN(1, ("%s: transfer %u bytes\n" , __func__, |
980 | (unsigned int)wrlen)); |
981 | |
982 | wrbuf[2] = sirlength & 0xff; |
983 | wrbuf[3] = (sirlength >> 8) & 0xff; |
984 | |
985 | btlen = STIR_OUTPUT_HEADER_SIZE + sirlength; |
986 | |
987 | sc->sc_direction = udir_output; |
988 | |
989 | #ifdef USTIR_DEBUG |
990 | if (ustirdebug >= 20) |
991 | ustir_dumpdata(wrbuf, btlen, __func__); |
992 | #endif |
993 | |
994 | err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe, |
995 | USBD_FORCE_SHORT_XFER, USTIR_WR_TIMEOUT, wrbuf, &btlen); |
996 | DPRINTFN(2, ("%s: err=%d\n" , __func__, err)); |
997 | if (err != USBD_NORMAL_COMPLETION) { |
998 | if (err == USBD_INTERRUPTED) |
999 | error = EINTR; |
1000 | else if (err == USBD_TIMEOUT) |
1001 | error = ETIMEDOUT; |
1002 | else |
1003 | error = EIO; |
1004 | } else { |
1005 | error = 0; |
1006 | } |
1007 | } |
1008 | |
1009 | ret: |
1010 | if (--sc->sc_refcnt < 0) |
1011 | usb_detach_wakeupold(sc->sc_dev); |
1012 | |
1013 | DPRINTFN(1,("%s: sc=%p done\n" , __func__, sc)); |
1014 | return error; |
1015 | } |
1016 | |
1017 | Static int |
1018 | ustir_poll(void *h, int events, struct lwp *l) |
1019 | { |
1020 | struct ustir_softc *sc = h; |
1021 | int revents = 0; |
1022 | |
1023 | DPRINTFN(1,("%s: sc=%p\n" , __func__, sc)); |
1024 | |
1025 | if (events & (POLLOUT | POLLWRNORM)) { |
1026 | if (sc->sc_direction != udir_input) { |
1027 | revents |= events & (POLLOUT | POLLWRNORM); |
1028 | } else { |
1029 | DPRINTFN(2,("%s: recording write select\n" , |
1030 | __func__)); |
1031 | selrecord(l, &sc->sc_wr_sel); |
1032 | } |
1033 | } |
1034 | |
1035 | if (events & (POLLIN | POLLRDNORM)) { |
1036 | if (sc->sc_ur_framelen != 0) { |
1037 | DPRINTFN(2,("%s: have data\n" , __func__)); |
1038 | revents |= events & (POLLIN | POLLRDNORM); |
1039 | } else { |
1040 | DPRINTFN(2,("%s: recording read select\n" , |
1041 | __func__)); |
1042 | selrecord(l, &sc->sc_rd_sel); |
1043 | } |
1044 | } |
1045 | |
1046 | return revents; |
1047 | } |
1048 | |
1049 | static void |
1050 | filt_ustirrdetach(struct knote *kn) |
1051 | { |
1052 | struct ustir_softc *sc = kn->kn_hook; |
1053 | int s; |
1054 | |
1055 | s = splusb(); |
1056 | SLIST_REMOVE(&sc->sc_rd_sel.sel_klist, kn, knote, kn_selnext); |
1057 | splx(s); |
1058 | } |
1059 | |
1060 | /* ARGSUSED */ |
1061 | static int |
1062 | filt_ustirread(struct knote *kn, long hint) |
1063 | { |
1064 | struct ustir_softc *sc = kn->kn_hook; |
1065 | |
1066 | kn->kn_data = sc->sc_ur_framelen; |
1067 | return kn->kn_data > 0; |
1068 | } |
1069 | |
1070 | static void |
1071 | filt_ustirwdetach(struct knote *kn) |
1072 | { |
1073 | struct ustir_softc *sc = kn->kn_hook; |
1074 | int s; |
1075 | |
1076 | s = splusb(); |
1077 | SLIST_REMOVE(&sc->sc_wr_sel.sel_klist, kn, knote, kn_selnext); |
1078 | splx(s); |
1079 | } |
1080 | |
1081 | /* ARGSUSED */ |
1082 | static int |
1083 | filt_ustirwrite(struct knote *kn, long hint) |
1084 | { |
1085 | struct ustir_softc *sc = kn->kn_hook; |
1086 | |
1087 | kn->kn_data = 0; |
1088 | return sc->sc_direction != udir_input; |
1089 | } |
1090 | |
1091 | static const struct filterops ustirread_filtops = |
1092 | { 1, NULL, filt_ustirrdetach, filt_ustirread }; |
1093 | static const struct filterops ustirwrite_filtops = |
1094 | { 1, NULL, filt_ustirwdetach, filt_ustirwrite }; |
1095 | |
1096 | Static int |
1097 | ustir_kqfilter(void *h, struct knote *kn) |
1098 | { |
1099 | struct ustir_softc *sc = h; |
1100 | struct klist *klist; |
1101 | int s; |
1102 | |
1103 | switch (kn->kn_filter) { |
1104 | case EVFILT_READ: |
1105 | klist = &sc->sc_rd_sel.sel_klist; |
1106 | kn->kn_fop = &ustirread_filtops; |
1107 | break; |
1108 | case EVFILT_WRITE: |
1109 | klist = &sc->sc_wr_sel.sel_klist; |
1110 | kn->kn_fop = &ustirwrite_filtops; |
1111 | break; |
1112 | default: |
1113 | return EINVAL; |
1114 | } |
1115 | |
1116 | kn->kn_hook = sc; |
1117 | |
1118 | s = splusb(); |
1119 | SLIST_INSERT_HEAD(klist, kn, kn_selnext); |
1120 | splx(s); |
1121 | |
1122 | return 0; |
1123 | } |
1124 | |
1125 | #ifdef USTIR_DEBUG_IOCTLS |
1126 | Static int ustir_ioctl(void *h, u_long cmd, void *addr, int flag, struct lwp *l) |
1127 | { |
1128 | struct ustir_softc *sc = h; |
1129 | int error; |
1130 | unsigned int regnum; |
1131 | usbd_status err; |
1132 | uint8_t regdata; |
1133 | |
1134 | if (sc->sc_dying) |
1135 | return EIO; |
1136 | |
1137 | sc->sc_refcnt++; |
1138 | |
1139 | error = 0; |
1140 | switch (cmd) { |
1141 | case USTIR_READ_REGISTER: |
1142 | regnum = *(unsigned int *)addr; |
1143 | |
1144 | if (regnum > STIR_MAX_REG) { |
1145 | error = EINVAL; |
1146 | break; |
1147 | } |
1148 | |
1149 | err = ustir_read_reg(sc, regnum, ®data); |
1150 | |
1151 | DPRINTFN(10, ("%s: regget(%u) = 0x%x\n" , __func__, |
1152 | regnum, (unsigned int)regdata)); |
1153 | |
1154 | *(unsigned int *)addr = regdata; |
1155 | if (err != USBD_NORMAL_COMPLETION) { |
1156 | printf("%s: register read failed: %s\n" , |
1157 | device_xname(sc->sc_dev), |
1158 | usbd_errstr(err)); |
1159 | error = EIO; |
1160 | } |
1161 | break; |
1162 | |
1163 | case USTIR_WRITE_REGISTER: |
1164 | regnum = *(unsigned int *)addr; |
1165 | regdata = (regnum >> 8) & 0xff; |
1166 | regnum = regnum & 0xff; |
1167 | |
1168 | if (regnum > STIR_MAX_REG) { |
1169 | error = EINVAL; |
1170 | break; |
1171 | } |
1172 | |
1173 | DPRINTFN(10, ("%s: regset(%u, 0x%x)\n" , __func__, |
1174 | regnum, (unsigned int)regdata)); |
1175 | |
1176 | err = ustir_write_reg(sc, regnum, regdata); |
1177 | if (err != USBD_NORMAL_COMPLETION) { |
1178 | printf("%s: register write failed: %s\n" , |
1179 | device_xname(sc->sc_dev), |
1180 | usbd_errstr(err)); |
1181 | error = EIO; |
1182 | } |
1183 | break; |
1184 | |
1185 | case USTIR_DEBUG_LEVEL: |
1186 | #ifdef USTIR_DEBUG |
1187 | ustirdebug = *(int *)addr; |
1188 | #endif |
1189 | break; |
1190 | |
1191 | case USTIR_DEBUG_OPERATION: |
1192 | break; |
1193 | |
1194 | default: |
1195 | error = EINVAL; |
1196 | break; |
1197 | } |
1198 | |
1199 | if (--sc->sc_refcnt < 0) |
1200 | usb_detach_wakeupold(sc->sc_dev); |
1201 | |
1202 | return error; |
1203 | } |
1204 | #endif |
1205 | |
1206 | Static int |
1207 | ustir_set_params(void *h, struct irda_params *p) |
1208 | { |
1209 | struct ustir_softc *sc = h; |
1210 | struct ustir_speedrec const *speedblk; |
1211 | int i; |
1212 | |
1213 | DPRINTFN(0, ("%s: sc=%p, speed=%d ebofs=%d maxsize=%d\n" , __func__, |
1214 | sc, p->speed, p->ebofs, p->maxsize)); |
1215 | |
1216 | if (sc->sc_dying) |
1217 | return EIO; |
1218 | |
1219 | speedblk = NULL; |
1220 | |
1221 | if (sc->sc_speedrec == NULL || p->speed != sc->sc_speedrec->speed) { |
1222 | /* find speed */ |
1223 | for (i = 0; i < USTIR_NSPEEDS; i++) { |
1224 | if (ustir_speeds[i].speed == p->speed) { |
1225 | speedblk = &ustir_speeds[i]; |
1226 | goto found2; |
1227 | } |
1228 | } |
1229 | /* no good value found */ |
1230 | return EINVAL; |
1231 | found2: |
1232 | ; |
1233 | } |
1234 | if (p->maxsize != sc->sc_params.maxsize) { |
1235 | if (p->maxsize > IRDA_MAX_FRAME_SIZE) |
1236 | return EINVAL; |
1237 | sc->sc_params.maxsize = p->maxsize; |
1238 | } |
1239 | |
1240 | sc->sc_params = *p; |
1241 | |
1242 | if (speedblk != NULL) { |
1243 | usbd_status err; |
1244 | uint8_t regmode; |
1245 | uint8_t regbrate; |
1246 | |
1247 | sc->sc_speedrec = speedblk; |
1248 | |
1249 | regmode = STIR_BRMODE_MODEREG(speedblk->config); |
1250 | regbrate = STIR_BRMODE_BRATEREG(speedblk->config); |
1251 | |
1252 | /* |
1253 | * FFSPRST must be set to enable the FIFO. |
1254 | */ |
1255 | regmode |= STIR_RMODE_FFSPRST; |
1256 | |
1257 | DPRINTFN(10, ("%s: setting BRATE = %x\n" , __func__, |
1258 | (unsigned int)regbrate)); |
1259 | err = ustir_write_reg(sc, STIR_REG_BRATE, regbrate); |
1260 | if (err == USBD_NORMAL_COMPLETION) { |
1261 | DPRINTFN(10, ("%s: setting MODE = %x\n" , __func__, |
1262 | (unsigned int)regmode)); |
1263 | err = ustir_write_reg(sc, STIR_REG_MODE, regmode); |
1264 | } |
1265 | if (err != USBD_NORMAL_COMPLETION) { |
1266 | DPRINTFN(10, ("%s: error setting register: %s\n" , |
1267 | __func__, usbd_errstr(err))); |
1268 | return EIO; |
1269 | } |
1270 | } |
1271 | |
1272 | return 0; |
1273 | } |
1274 | |
1275 | Static int |
1276 | ustir_get_speeds(void *h, int *speeds) |
1277 | { |
1278 | struct ustir_softc *sc = h; |
1279 | |
1280 | DPRINTFN(0, ("%s: sc=%p\n" , __func__, sc)); |
1281 | |
1282 | if (sc->sc_dying) |
1283 | return EIO; |
1284 | |
1285 | /* All these speeds are supported */ |
1286 | *speeds = IRDA_SPEED_4000000 | |
1287 | IRDA_SPEED_1152000 | |
1288 | IRDA_SPEED_576000 | |
1289 | IRDA_SPEED_115200 | |
1290 | IRDA_SPEED_57600 | |
1291 | IRDA_SPEED_38400 | |
1292 | IRDA_SPEED_19200 | |
1293 | IRDA_SPEED_9600 | |
1294 | IRDA_SPEED_2400; |
1295 | |
1296 | return 0; |
1297 | } |
1298 | |
1299 | Static int |
1300 | ustir_get_turnarounds(void *h, int *turnarounds) |
1301 | { |
1302 | struct ustir_softc *sc = h; |
1303 | |
1304 | DPRINTFN(0, ("%s: sc=%p\n" , __func__, sc)); |
1305 | |
1306 | if (sc->sc_dying) |
1307 | return EIO; |
1308 | |
1309 | /* |
1310 | * Documentation is on the light side with respect to |
1311 | * turnaround time for this device. |
1312 | */ |
1313 | *turnarounds = IRDA_TURNT_10000; |
1314 | |
1315 | return 0; |
1316 | } |
1317 | |