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usb4bsd: Fix EHCI
[dragonfly.git] / sys / bus / u4b / storage / umass.c
blobd499792fdf6eba683fe395d87d04b3ef6614ebef
1 /*-
2 * Copyright (c) 1999 MAEKAWA Masahide <bishop@rr.iij4u.or.jp>,
3 * Nick Hibma <n_hibma@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD$
28 * $NetBSD: umass.c,v 1.28 2000/04/02 23:46:53 augustss Exp $
29 */
30
31 /* Also already merged from NetBSD:
32 * $NetBSD: umass.c,v 1.67 2001/11/25 19:05:22 augustss Exp $
33 * $NetBSD: umass.c,v 1.90 2002/11/04 19:17:33 pooka Exp $
34 * $NetBSD: umass.c,v 1.108 2003/11/07 17:03:25 wiz Exp $
35 * $NetBSD: umass.c,v 1.109 2003/12/04 13:57:31 keihan Exp $
36 */
37
38 /*
39 * Universal Serial Bus Mass Storage Class specs:
40 * http://www.usb.org/developers/devclass_docs/usb_msc_overview_1.2.pdf
41 * http://www.usb.org/developers/devclass_docs/usbmassbulk_10.pdf
42 * http://www.usb.org/developers/devclass_docs/usb_msc_cbi_1.1.pdf
43 * http://www.usb.org/developers/devclass_docs/usbmass-ufi10.pdf
44 */
45
46 /*
47 * Ported to NetBSD by Lennart Augustsson <augustss@NetBSD.org>.
48 * Parts of the code written by Jason R. Thorpe <thorpej@shagadelic.org>.
49 */
50
51 /*
52 * The driver handles 3 Wire Protocols
53 * - Command/Bulk/Interrupt (CBI)
54 * - Command/Bulk/Interrupt with Command Completion Interrupt (CBI with CCI)
55 * - Mass Storage Bulk-Only (BBB)
56 * (BBB refers Bulk/Bulk/Bulk for Command/Data/Status phases)
57 *
58 * Over these wire protocols it handles the following command protocols
59 * - SCSI
60 * - UFI (floppy command set)
61 * - 8070i (ATAPI)
62 *
63 * UFI and 8070i (ATAPI) are transformed versions of the SCSI command set. The
64 * sc->sc_transform method is used to convert the commands into the appropriate
65 * format (if at all necessary). For example, UFI requires all commands to be
66 * 12 bytes in length amongst other things.
67 *
68 * The source code below is marked and can be split into a number of pieces
69 * (in this order):
70 *
71 * - probe/attach/detach
72 * - generic transfer routines
73 * - BBB
74 * - CBI
75 * - CBI_I (in addition to functions from CBI)
76 * - CAM (Common Access Method)
77 * - SCSI
78 * - UFI
79 * - 8070i (ATAPI)
80 *
81 * The protocols are implemented using a state machine, for the transfers as
82 * well as for the resets. The state machine is contained in umass_t_*_callback.
83 * The state machine is started through either umass_command_start() or
84 * umass_reset().
85 *
86 * The reason for doing this is a) CAM performs a lot better this way and b) it
87 * avoids using tsleep from interrupt context (for example after a failed
88 * transfer).
89 */
90
91 /*
92 * The SCSI related part of this driver has been derived from the
93 * dev/ppbus/vpo.c driver, by Nicolas Souchu (nsouch@FreeBSD.org).
94 *
95 * The CAM layer uses so called actions which are messages sent to the host
96 * adapter for completion. The actions come in through umass_cam_action. The
97 * appropriate block of routines is called depending on the transport protocol
98 * in use. When the transfer has finished, these routines call
99 * umass_cam_cb again to complete the CAM command.
100 */
101
102 #include <sys/stdint.h>
103 #include <sys/param.h>
104 #include <sys/queue.h>
105 #include <sys/types.h>
106 #include <sys/systm.h>
107 #include <sys/kernel.h>
108 #include <sys/bus.h>
109 #include <sys/module.h>
110 #include <sys/lock.h>
111 #include <sys/condvar.h>
112 #include <sys/sysctl.h>
113 #include <sys/unistd.h>
114 #include <sys/callout.h>
115 #include <sys/malloc.h>
116 #include <sys/priv.h>
117
118 #include <bus/u4b/usb.h>
119 #include <bus/u4b/usbdi.h>
120 #include <bus/u4b/usbdi_util.h>
121 #include <bus/u4b/usbdevs.h>
122
123 #include <bus/u4b/quirk/usb_quirk.h>
124
125 #include <bus/cam/cam.h>
126 #include <bus/cam/cam_ccb.h>
127 #include <bus/cam/cam_sim.h>
128 #include <bus/cam/cam_xpt_sim.h>
129 #include <bus/cam/scsi/scsi_all.h>
130 #include <bus/cam/scsi/scsi_da.h>
131
132 #include <bus/cam/cam_periph.h>
133
134 #define UMASS_EXT_BUFFER
135 #ifdef UMASS_EXT_BUFFER
136 /* this enables loading of virtual buffers into DMA */
137 #define UMASS_USB_FLAGS .ext_buffer=1,
138 #else
139 #define UMASS_USB_FLAGS
140 #endif
141
142 #ifdef USB_DEBUG
143 #define DIF(m, x) \
144 do { \
145 if (umass_debug & (m)) { x ; } \
146 } while (0)
147
148 #define DPRINTF(sc, m, fmt, ...) \
149 do { \
150 if (umass_debug & (m)) { \
151 kprintf("%s:%s: " fmt, \
152 (sc) ? (const char *)(sc)->sc_name : \
153 (const char *)"umassX", \
154 __func__ ,## __VA_ARGS__); \
155 } \
156 } while (0)
157
158 #define UDMASS_GEN 0x00010000 /* general */
159 #define UDMASS_SCSI 0x00020000 /* scsi */
160 #define UDMASS_UFI 0x00040000 /* ufi command set */
161 #define UDMASS_ATAPI 0x00080000 /* 8070i command set */
162 #define UDMASS_CMD (UDMASS_SCSI|UDMASS_UFI|UDMASS_ATAPI)
163 #define UDMASS_USB 0x00100000 /* USB general */
164 #define UDMASS_BBB 0x00200000 /* Bulk-Only transfers */
165 #define UDMASS_CBI 0x00400000 /* CBI transfers */
166 #define UDMASS_WIRE (UDMASS_BBB|UDMASS_CBI)
167 #define UDMASS_ALL 0xffff0000 /* all of the above */
168 static int umass_debug = 0;
169
170 static SYSCTL_NODE(_hw_usb, OID_AUTO, umass, CTLFLAG_RW, 0, "USB umass");
171 SYSCTL_INT(_hw_usb_umass, OID_AUTO, debug, CTLFLAG_RW,
172 &umass_debug, 0, "umass debug level");
173
174 TUNABLE_INT("hw.usb.umass.debug", &umass_debug);
175 #else
176 #define DIF(...) do { } while (0)
177 #define DPRINTF(...) do { } while (0)
178 #endif
179
180 #define UMASS_GONE ((struct umass_softc *)1)
181
182 #define UMASS_BULK_SIZE (1 << 17)
183 #define UMASS_CBI_DIAGNOSTIC_CMDLEN 12 /* bytes */
184 #define UMASS_MAX_CMDLEN MAX(12, CAM_MAX_CDBLEN) /* bytes */
185
186 /* USB transfer definitions */
187
188 #define UMASS_T_BBB_RESET1 0 /* Bulk-Only */
189 #define UMASS_T_BBB_RESET2 1
190 #define UMASS_T_BBB_RESET3 2
191 #define UMASS_T_BBB_COMMAND 3
192 #define UMASS_T_BBB_DATA_READ 4
193 #define UMASS_T_BBB_DATA_RD_CS 5
194 #define UMASS_T_BBB_DATA_WRITE 6
195 #define UMASS_T_BBB_DATA_WR_CS 7
196 #define UMASS_T_BBB_STATUS 8
197 #define UMASS_T_BBB_MAX 9
198
199 #define UMASS_T_CBI_RESET1 0 /* CBI */
200 #define UMASS_T_CBI_RESET2 1
201 #define UMASS_T_CBI_RESET3 2
202 #define UMASS_T_CBI_COMMAND 3
203 #define UMASS_T_CBI_DATA_READ 4
204 #define UMASS_T_CBI_DATA_RD_CS 5
205 #define UMASS_T_CBI_DATA_WRITE 6
206 #define UMASS_T_CBI_DATA_WR_CS 7
207 #define UMASS_T_CBI_STATUS 8
208 #define UMASS_T_CBI_RESET4 9
209 #define UMASS_T_CBI_MAX 10
210
211 #define UMASS_T_MAX MAX(UMASS_T_CBI_MAX, UMASS_T_BBB_MAX)
212
213 /* Generic definitions */
214
215 /* Direction for transfer */
216 #define DIR_NONE 0
217 #define DIR_IN 1
218 #define DIR_OUT 2
219
220 /* device name */
221 #define DEVNAME "umass"
222 #define DEVNAME_SIM "umass-sim"
223
224 /* Approximate maximum transfer speeds (assumes 33% overhead). */
225 #define UMASS_FULL_TRANSFER_SPEED 1000
226 #define UMASS_HIGH_TRANSFER_SPEED 40000
227 #define UMASS_SUPER_TRANSFER_SPEED 400000
228 #define UMASS_FLOPPY_TRANSFER_SPEED 20
229
230 #define UMASS_TIMEOUT 5000 /* ms */
231
232 /* CAM specific definitions */
233
234 #define UMASS_SCSIID_MAX 1 /* maximum number of drives expected */
235 #define UMASS_SCSIID_HOST UMASS_SCSIID_MAX
236
237 /* Bulk-Only features */
238
239 #define UR_BBB_RESET 0xff /* Bulk-Only reset */
240 #define UR_BBB_GET_MAX_LUN 0xfe /* Get maximum lun */
241
242 /* Command Block Wrapper */
243 typedef struct {
244 uDWord dCBWSignature;
245 #define CBWSIGNATURE 0x43425355
246 uDWord dCBWTag;
247 uDWord dCBWDataTransferLength;
248 uByte bCBWFlags;
249 #define CBWFLAGS_OUT 0x00
250 #define CBWFLAGS_IN 0x80
251 uByte bCBWLUN;
252 uByte bCDBLength;
253 #define CBWCDBLENGTH 16
254 uByte CBWCDB[CBWCDBLENGTH];
255 } __packed umass_bbb_cbw_t;
256
257 #define UMASS_BBB_CBW_SIZE 31
258
259 /* Command Status Wrapper */
260 typedef struct {
261 uDWord dCSWSignature;
262 #define CSWSIGNATURE 0x53425355
263 #define CSWSIGNATURE_IMAGINATION_DBX1 0x43425355
264 #define CSWSIGNATURE_OLYMPUS_C1 0x55425355
265 uDWord dCSWTag;
266 uDWord dCSWDataResidue;
267 uByte bCSWStatus;
268 #define CSWSTATUS_GOOD 0x0
269 #define CSWSTATUS_FAILED 0x1
270 #define CSWSTATUS_PHASE 0x2
271 } __packed umass_bbb_csw_t;
272
273 #define UMASS_BBB_CSW_SIZE 13
274
275 /* CBI features */
276
277 #define UR_CBI_ADSC 0x00
278
279 typedef union {
280 struct {
281 uint8_t type;
282 #define IDB_TYPE_CCI 0x00
283 uint8_t value;
284 #define IDB_VALUE_PASS 0x00
285 #define IDB_VALUE_FAIL 0x01
286 #define IDB_VALUE_PHASE 0x02
287 #define IDB_VALUE_PERSISTENT 0x03
288 #define IDB_VALUE_STATUS_MASK 0x03
289 } __packed common;
290
291 struct {
292 uint8_t asc;
293 uint8_t ascq;
294 } __packed ufi;
295 } __packed umass_cbi_sbl_t;
296
297 struct umass_softc; /* see below */
298
299 typedef void (umass_callback_t)(struct umass_softc *sc, union ccb *ccb,
300 uint32_t residue, uint8_t status);
301
302 #define STATUS_CMD_OK 0 /* everything ok */
303 #define STATUS_CMD_UNKNOWN 1 /* will have to fetch sense */
304 #define STATUS_CMD_FAILED 2 /* transfer was ok, command failed */
305 #define STATUS_WIRE_FAILED 3 /* couldn't even get command across */
306
307 typedef uint8_t (umass_transform_t)(struct umass_softc *sc, uint8_t *cmd_ptr,
308 uint8_t cmd_len);
309
310 /* Wire and command protocol */
311 #define UMASS_PROTO_BBB 0x0001 /* USB wire protocol */
312 #define UMASS_PROTO_CBI 0x0002
313 #define UMASS_PROTO_CBI_I 0x0004
314 #define UMASS_PROTO_WIRE 0x00ff /* USB wire protocol mask */
315 #define UMASS_PROTO_SCSI 0x0100 /* command protocol */
316 #define UMASS_PROTO_ATAPI 0x0200
317 #define UMASS_PROTO_UFI 0x0400
318 #define UMASS_PROTO_RBC 0x0800
319 #define UMASS_PROTO_COMMAND 0xff00 /* command protocol mask */
320
321 /* Device specific quirks */
322 #define NO_QUIRKS 0x0000
323 /*
324 * The drive does not support Test Unit Ready. Convert to Start Unit
325 */
326 #define NO_TEST_UNIT_READY 0x0001
327 /*
328 * The drive does not reset the Unit Attention state after REQUEST
329 * SENSE has been sent. The INQUIRY command does not reset the UA
330 * either, and so CAM runs in circles trying to retrieve the initial
331 * INQUIRY data.
332 */
333 #define RS_NO_CLEAR_UA 0x0002
334 /* The drive does not support START STOP. */
335 #define NO_START_STOP 0x0004
336 /* Don't ask for full inquiry data (255b). */
337 #define FORCE_SHORT_INQUIRY 0x0008
338 /* Needs to be initialised the Shuttle way */
339 #define SHUTTLE_INIT 0x0010
340 /* Drive needs to be switched to alternate iface 1 */
341 #define ALT_IFACE_1 0x0020
342 /* Drive does not do 1Mb/s, but just floppy speeds (20kb/s) */
343 #define FLOPPY_SPEED 0x0040
344 /* The device can't count and gets the residue of transfers wrong */
345 #define IGNORE_RESIDUE 0x0080
346 /* No GetMaxLun call */
347 #define NO_GETMAXLUN 0x0100
348 /* The device uses a weird CSWSIGNATURE. */
349 #define WRONG_CSWSIG 0x0200
350 /* Device cannot handle INQUIRY so fake a generic response */
351 #define NO_INQUIRY 0x0400
352 /* Device cannot handle INQUIRY EVPD, return CHECK CONDITION */
353 #define NO_INQUIRY_EVPD 0x0800
354 /* Pad all RBC requests to 12 bytes. */
355 #define RBC_PAD_TO_12 0x1000
356 /*
357 * Device reports number of sectors from READ_CAPACITY, not max
358 * sector number.
359 */
360 #define READ_CAPACITY_OFFBY1 0x2000
361 /*
362 * Device cannot handle a SCSI synchronize cache command. Normally
363 * this quirk would be handled in the cam layer, but for IDE bridges
364 * we need to associate the quirk with the bridge and not the
365 * underlying disk device. This is handled by faking a success
366 * result.
367 */
368 #define NO_SYNCHRONIZE_CACHE 0x4000
369
370 struct umass_softc {
371
372 struct scsi_sense cam_scsi_sense;
373 struct scsi_test_unit_ready cam_scsi_test_unit_ready;
374 struct lock sc_lock;
375 struct {
376 uint8_t *data_ptr;
377 union ccb *ccb;
378 umass_callback_t *callback;
379
380 uint32_t data_len; /* bytes */
381 uint32_t data_rem; /* bytes */
382 uint32_t data_timeout; /* ms */
383 uint32_t actlen; /* bytes */
384
385 uint8_t cmd_data[UMASS_MAX_CMDLEN];
386 uint8_t cmd_len; /* bytes */
387 uint8_t dir;
388 uint8_t lun;
389 } sc_transfer;
390
391 /* Bulk specific variables for transfers in progress */
392 umass_bbb_cbw_t cbw; /* command block wrapper */
393 umass_bbb_csw_t csw; /* command status wrapper */
394
395 /* CBI specific variables for transfers in progress */
396 umass_cbi_sbl_t sbl; /* status block */
397
398 device_t sc_dev;
399 struct usb_device *sc_udev;
400 struct cam_sim *sc_sim; /* SCSI Interface Module */
401 struct usb_xfer *sc_xfer[UMASS_T_MAX];
402
403 /*
404 * The command transform function is used to convert the SCSI
405 * commands into their derivatives, like UFI, ATAPI, and friends.
406 */
407 umass_transform_t *sc_transform;
408
409 uint32_t sc_unit;
410 uint32_t sc_quirks; /* they got it almost right */
411 uint32_t sc_proto; /* wire and cmd protocol */
412
413 uint8_t sc_name[16];
414 uint8_t sc_iface_no; /* interface number */
415 uint8_t sc_maxlun; /* maximum LUN number, inclusive */
416 uint8_t sc_last_xfer_index;
417 uint8_t sc_status_try;
418
419 uint32_t sc_timeout;
420 struct usb_callout sc_rescan_timeout;
421 };
422
423 struct umass_probe_proto {
424 uint32_t quirks;
425 uint32_t proto;
426
427 int error;
428 };
429
430 /* prototypes */
431
432 static device_probe_t umass_probe;
433 static device_attach_t umass_attach;
434 static device_detach_t umass_detach;
435
436 static usb_callback_t umass_tr_error;
437 static usb_callback_t umass_t_bbb_reset1_callback;
438 static usb_callback_t umass_t_bbb_reset2_callback;
439 static usb_callback_t umass_t_bbb_reset3_callback;
440 static usb_callback_t umass_t_bbb_command_callback;
441 static usb_callback_t umass_t_bbb_data_read_callback;
442 static usb_callback_t umass_t_bbb_data_rd_cs_callback;
443 static usb_callback_t umass_t_bbb_data_write_callback;
444 static usb_callback_t umass_t_bbb_data_wr_cs_callback;
445 static usb_callback_t umass_t_bbb_status_callback;
446 static usb_callback_t umass_t_cbi_reset1_callback;
447 static usb_callback_t umass_t_cbi_reset2_callback;
448 static usb_callback_t umass_t_cbi_reset3_callback;
449 static usb_callback_t umass_t_cbi_reset4_callback;
450 static usb_callback_t umass_t_cbi_command_callback;
451 static usb_callback_t umass_t_cbi_data_read_callback;
452 static usb_callback_t umass_t_cbi_data_rd_cs_callback;
453 static usb_callback_t umass_t_cbi_data_write_callback;
454 static usb_callback_t umass_t_cbi_data_wr_cs_callback;
455 static usb_callback_t umass_t_cbi_status_callback;
456
457 static void umass_cancel_ccb(struct umass_softc *);
458 static void umass_init_shuttle(struct umass_softc *);
459 static void umass_reset(struct umass_softc *);
460 static void umass_t_bbb_data_clear_stall_callback(struct usb_xfer *,
461 uint8_t, uint8_t, usb_error_t);
462 static void umass_command_start(struct umass_softc *, uint8_t, void *,
463 uint32_t, uint32_t, umass_callback_t *, union ccb *);
464 static uint8_t umass_bbb_get_max_lun(struct umass_softc *);
465 static void umass_cbi_start_status(struct umass_softc *);
466 static void umass_t_cbi_data_clear_stall_callback(struct usb_xfer *,
467 uint8_t, uint8_t, usb_error_t);
468 static int umass_cam_attach_sim(struct umass_softc *);
469 static void umass_cam_attach(struct umass_softc *);
470 static void umass_cam_detach_sim(struct umass_softc *);
471 static void umass_cam_action(struct cam_sim *, union ccb *);
472 static void umass_cam_poll(struct cam_sim *);
473 static void umass_cam_cb(struct umass_softc *, union ccb *, uint32_t,
474 uint8_t);
475 static void umass_cam_sense_cb(struct umass_softc *, union ccb *, uint32_t,
476 uint8_t);
477 static void umass_cam_quirk_cb(struct umass_softc *, union ccb *, uint32_t,
478 uint8_t);
479 static uint8_t umass_scsi_transform(struct umass_softc *, uint8_t *, uint8_t);
480 static uint8_t umass_rbc_transform(struct umass_softc *, uint8_t *, uint8_t);
481 static uint8_t umass_ufi_transform(struct umass_softc *, uint8_t *, uint8_t);
482 static uint8_t umass_atapi_transform(struct umass_softc *, uint8_t *,
483 uint8_t);
484 static uint8_t umass_no_transform(struct umass_softc *, uint8_t *, uint8_t);
485 static uint8_t umass_std_transform(struct umass_softc *, union ccb *, uint8_t
486 *, uint8_t);
487
488 #ifdef USB_DEBUG
489 static void umass_bbb_dump_cbw(struct umass_softc *, umass_bbb_cbw_t *);
490 static void umass_bbb_dump_csw(struct umass_softc *, umass_bbb_csw_t *);
491 static void umass_cbi_dump_cmd(struct umass_softc *, void *, uint8_t);
492 static void umass_dump_buffer(struct umass_softc *, uint8_t *, uint32_t,
493 uint32_t);
494 #endif
495
496 static struct usb_config umass_bbb_config[UMASS_T_BBB_MAX] = {
497
498 [UMASS_T_BBB_RESET1] = {
499 .type = UE_CONTROL,
500 .endpoint = 0x00, /* Control pipe */
501 .direction = UE_DIR_ANY,
502 .bufsize = sizeof(struct usb_device_request),
503 .callback = &umass_t_bbb_reset1_callback,
504 .timeout = 5000, /* 5 seconds */
505 .interval = 500, /* 500 milliseconds */
506 },
507
508 [UMASS_T_BBB_RESET2] = {
509 .type = UE_CONTROL,
510 .endpoint = 0x00, /* Control pipe */
511 .direction = UE_DIR_ANY,
512 .bufsize = sizeof(struct usb_device_request),
513 .callback = &umass_t_bbb_reset2_callback,
514 .timeout = 5000, /* 5 seconds */
515 .interval = 50, /* 50 milliseconds */
516 },
517
518 [UMASS_T_BBB_RESET3] = {
519 .type = UE_CONTROL,
520 .endpoint = 0x00, /* Control pipe */
521 .direction = UE_DIR_ANY,
522 .bufsize = sizeof(struct usb_device_request),
523 .callback = &umass_t_bbb_reset3_callback,
524 .timeout = 5000, /* 5 seconds */
525 .interval = 50, /* 50 milliseconds */
526 },
527
528 [UMASS_T_BBB_COMMAND] = {
529 .type = UE_BULK,
530 .endpoint = UE_ADDR_ANY,
531 .direction = UE_DIR_OUT,
532 .bufsize = sizeof(umass_bbb_cbw_t),
533 .callback = &umass_t_bbb_command_callback,
534 .timeout = 5000, /* 5 seconds */
535 },
536
537 [UMASS_T_BBB_DATA_READ] = {
538 .type = UE_BULK,
539 .endpoint = UE_ADDR_ANY,
540 .direction = UE_DIR_IN,
541 .bufsize = UMASS_BULK_SIZE,
542 .flags = {.proxy_buffer = 1,.short_xfer_ok = 1, UMASS_USB_FLAGS},
543 .callback = &umass_t_bbb_data_read_callback,
544 .timeout = 0, /* overwritten later */
545 },
546
547 [UMASS_T_BBB_DATA_RD_CS] = {
548 .type = UE_CONTROL,
549 .endpoint = 0x00, /* Control pipe */
550 .direction = UE_DIR_ANY,
551 .bufsize = sizeof(struct usb_device_request),
552 .callback = &umass_t_bbb_data_rd_cs_callback,
553 .timeout = 5000, /* 5 seconds */
554 },
555
556 [UMASS_T_BBB_DATA_WRITE] = {
557 .type = UE_BULK,
558 .endpoint = UE_ADDR_ANY,
559 .direction = UE_DIR_OUT,
560 .bufsize = UMASS_BULK_SIZE,
561 .flags = {.proxy_buffer = 1,.short_xfer_ok = 1, UMASS_USB_FLAGS},
562 .callback = &umass_t_bbb_data_write_callback,
563 .timeout = 0, /* overwritten later */
564 },
565
566 [UMASS_T_BBB_DATA_WR_CS] = {
567 .type = UE_CONTROL,
568 .endpoint = 0x00, /* Control pipe */
569 .direction = UE_DIR_ANY,
570 .bufsize = sizeof(struct usb_device_request),
571 .callback = &umass_t_bbb_data_wr_cs_callback,
572 .timeout = 5000, /* 5 seconds */
573 },
574
575 [UMASS_T_BBB_STATUS] = {
576 .type = UE_BULK,
577 .endpoint = UE_ADDR_ANY,
578 .direction = UE_DIR_IN,
579 .bufsize = sizeof(umass_bbb_csw_t),
580 .flags = {.short_xfer_ok = 1,},
581 .callback = &umass_t_bbb_status_callback,
582 .timeout = 5000, /* ms */
583 },
584 };
585
586 static struct usb_config umass_cbi_config[UMASS_T_CBI_MAX] = {
587
588 [UMASS_T_CBI_RESET1] = {
589 .type = UE_CONTROL,
590 .endpoint = 0x00, /* Control pipe */
591 .direction = UE_DIR_ANY,
592 .bufsize = (sizeof(struct usb_device_request) +
593 UMASS_CBI_DIAGNOSTIC_CMDLEN),
594 .callback = &umass_t_cbi_reset1_callback,
595 .timeout = 5000, /* 5 seconds */
596 .interval = 500, /* 500 milliseconds */
597 },
598
599 [UMASS_T_CBI_RESET2] = {
600 .type = UE_CONTROL,
601 .endpoint = 0x00, /* Control pipe */
602 .direction = UE_DIR_ANY,
603 .bufsize = sizeof(struct usb_device_request),
604 .callback = &umass_t_cbi_reset2_callback,
605 .timeout = 5000, /* 5 seconds */
606 .interval = 50, /* 50 milliseconds */
607 },
608
609 [UMASS_T_CBI_RESET3] = {
610 .type = UE_CONTROL,
611 .endpoint = 0x00, /* Control pipe */
612 .direction = UE_DIR_ANY,
613 .bufsize = sizeof(struct usb_device_request),
614 .callback = &umass_t_cbi_reset3_callback,
615 .timeout = 5000, /* 5 seconds */
616 .interval = 50, /* 50 milliseconds */
617 },
618
619 [UMASS_T_CBI_COMMAND] = {
620 .type = UE_CONTROL,
621 .endpoint = 0x00, /* Control pipe */
622 .direction = UE_DIR_ANY,
623 .bufsize = (sizeof(struct usb_device_request) +
624 UMASS_MAX_CMDLEN),
625 .callback = &umass_t_cbi_command_callback,
626 .timeout = 5000, /* 5 seconds */
627 },
628
629 [UMASS_T_CBI_DATA_READ] = {
630 .type = UE_BULK,
631 .endpoint = UE_ADDR_ANY,
632 .direction = UE_DIR_IN,
633 .bufsize = UMASS_BULK_SIZE,
634 .flags = {.proxy_buffer = 1,.short_xfer_ok = 1, UMASS_USB_FLAGS},
635 .callback = &umass_t_cbi_data_read_callback,
636 .timeout = 0, /* overwritten later */
637 },
638
639 [UMASS_T_CBI_DATA_RD_CS] = {
640 .type = UE_CONTROL,
641 .endpoint = 0x00, /* Control pipe */
642 .direction = UE_DIR_ANY,
643 .bufsize = sizeof(struct usb_device_request),
644 .callback = &umass_t_cbi_data_rd_cs_callback,
645 .timeout = 5000, /* 5 seconds */
646 },
647
648 [UMASS_T_CBI_DATA_WRITE] = {
649 .type = UE_BULK,
650 .endpoint = UE_ADDR_ANY,
651 .direction = UE_DIR_OUT,
652 .bufsize = UMASS_BULK_SIZE,
653 .flags = {.proxy_buffer = 1,.short_xfer_ok = 1, UMASS_USB_FLAGS},
654 .callback = &umass_t_cbi_data_write_callback,
655 .timeout = 0, /* overwritten later */
656 },
657
658 [UMASS_T_CBI_DATA_WR_CS] = {
659 .type = UE_CONTROL,
660 .endpoint = 0x00, /* Control pipe */
661 .direction = UE_DIR_ANY,
662 .bufsize = sizeof(struct usb_device_request),
663 .callback = &umass_t_cbi_data_wr_cs_callback,
664 .timeout = 5000, /* 5 seconds */
665 },
666
667 [UMASS_T_CBI_STATUS] = {
668 .type = UE_INTERRUPT,
669 .endpoint = UE_ADDR_ANY,
670 .direction = UE_DIR_IN,
671 .flags = {.short_xfer_ok = 1,.no_pipe_ok = 1,},
672 .bufsize = sizeof(umass_cbi_sbl_t),
673 .callback = &umass_t_cbi_status_callback,
674 .timeout = 5000, /* ms */
675 },
676
677 [UMASS_T_CBI_RESET4] = {
678 .type = UE_CONTROL,
679 .endpoint = 0x00, /* Control pipe */
680 .direction = UE_DIR_ANY,
681 .bufsize = sizeof(struct usb_device_request),
682 .callback = &umass_t_cbi_reset4_callback,
683 .timeout = 5000, /* ms */
684 },
685 };
686
687 /* If device cannot return valid inquiry data, fake it */
688 static const uint8_t fake_inq_data[SHORT_INQUIRY_LENGTH] = {
689 0, /* removable */ 0x80, SCSI_REV_2, SCSI_REV_2,
690 /* additional_length */ 31, 0, 0, 0
691 };
692
693 #define UFI_COMMAND_LENGTH 12 /* UFI commands are always 12 bytes */
694 #define ATAPI_COMMAND_LENGTH 12 /* ATAPI commands are always 12 bytes */
695
696 static devclass_t umass_devclass;
697
698 static device_method_t umass_methods[] = {
699 /* Device interface */
700 DEVMETHOD(device_probe, umass_probe),
701 DEVMETHOD(device_attach, umass_attach),
702 DEVMETHOD(device_detach, umass_detach),
703 DEVMETHOD_END
704 };
705
706 static driver_t umass_driver = {
707 .name = "umass",
708 .methods = umass_methods,
709 .size = sizeof(struct umass_softc),
710 };
711
712 DRIVER_MODULE(umass, uhub, umass_driver, umass_devclass, NULL, NULL);
713 MODULE_DEPEND(umass, usb, 1, 1, 1);
714 MODULE_DEPEND(umass, cam, 1, 1, 1);
715 MODULE_VERSION(umass, 1);
716
717 /*
718 * USB device probe/attach/detach
719 */
720
721 static const STRUCT_USB_HOST_ID __used umass_devs[] = {
722 /* generic mass storage class */
723 {USB_IFACE_CLASS(UICLASS_MASS),},
724 };
725
726 static uint16_t
727 umass_get_proto(struct usb_interface *iface)
728 {
729 struct usb_interface_descriptor *id;
730 uint16_t retval;
731
732 retval = 0;
733
734 /* Check for a standards compliant device */
735 id = usbd_get_interface_descriptor(iface);
736 if ((id == NULL) ||
737 (id->bInterfaceClass != UICLASS_MASS)) {
738 goto done;
739 }
740 switch (id->bInterfaceSubClass) {
741 case UISUBCLASS_SCSI:
742 retval |= UMASS_PROTO_SCSI;
743 break;
744 case UISUBCLASS_UFI:
745 retval |= UMASS_PROTO_UFI;
746 break;
747 case UISUBCLASS_RBC:
748 retval |= UMASS_PROTO_RBC;
749 break;
750 case UISUBCLASS_SFF8020I:
751 case UISUBCLASS_SFF8070I:
752 retval |= UMASS_PROTO_ATAPI;
753 break;
754 default:
755 goto done;
756 }
757
758 switch (id->bInterfaceProtocol) {
759 case UIPROTO_MASS_CBI:
760 retval |= UMASS_PROTO_CBI;
761 break;
762 case UIPROTO_MASS_CBI_I:
763 retval |= UMASS_PROTO_CBI_I;
764 break;
765 case UIPROTO_MASS_BBB_OLD:
766 case UIPROTO_MASS_BBB:
767 retval |= UMASS_PROTO_BBB;
768 break;
769 default:
770 goto done;
771 }
772 done:
773 return (retval);
774 }
775
776 /*
777 * Match the device we are seeing with the devices supported.
778 */
779 static struct umass_probe_proto
780 umass_probe_proto(device_t dev, struct usb_attach_arg *uaa)
781 {
782 struct umass_probe_proto ret;
783 uint32_t quirks = NO_QUIRKS;
784 uint32_t proto = umass_get_proto(uaa->iface);
785
786 memset(&ret, 0, sizeof(ret));
787 ret.error = BUS_PROBE_GENERIC;
788
789 /* Search for protocol enforcement */
790
791 if (usb_test_quirk(uaa, UQ_MSC_FORCE_WIRE_BBB)) {
792 proto &= ~UMASS_PROTO_WIRE;
793 proto |= UMASS_PROTO_BBB;
794 } else if (usb_test_quirk(uaa, UQ_MSC_FORCE_WIRE_CBI)) {
795 proto &= ~UMASS_PROTO_WIRE;
796 proto |= UMASS_PROTO_CBI;
797 } else if (usb_test_quirk(uaa, UQ_MSC_FORCE_WIRE_CBI_I)) {
798 proto &= ~UMASS_PROTO_WIRE;
799 proto |= UMASS_PROTO_CBI_I;
800 }
801
802 if (usb_test_quirk(uaa, UQ_MSC_FORCE_PROTO_SCSI)) {
803 proto &= ~UMASS_PROTO_COMMAND;
804 proto |= UMASS_PROTO_SCSI;
805 } else if (usb_test_quirk(uaa, UQ_MSC_FORCE_PROTO_ATAPI)) {
806 proto &= ~UMASS_PROTO_COMMAND;
807 proto |= UMASS_PROTO_ATAPI;
808 } else if (usb_test_quirk(uaa, UQ_MSC_FORCE_PROTO_UFI)) {
809 proto &= ~UMASS_PROTO_COMMAND;
810 proto |= UMASS_PROTO_UFI;
811 } else if (usb_test_quirk(uaa, UQ_MSC_FORCE_PROTO_RBC)) {
812 proto &= ~UMASS_PROTO_COMMAND;
813 proto |= UMASS_PROTO_RBC;
814 }
815
816 /* Check if the protocol is invalid */
817
818 if ((proto & UMASS_PROTO_COMMAND) == 0) {
819 ret.error = ENXIO;
820 goto done;
821 }
822
823 if ((proto & UMASS_PROTO_WIRE) == 0) {
824 ret.error = ENXIO;
825 goto done;
826 }
827
828 /* Search for quirks */
829
830 if (usb_test_quirk(uaa, UQ_MSC_NO_TEST_UNIT_READY))
831 quirks |= NO_TEST_UNIT_READY;
832 if (usb_test_quirk(uaa, UQ_MSC_NO_RS_CLEAR_UA))
833 quirks |= RS_NO_CLEAR_UA;
834 if (usb_test_quirk(uaa, UQ_MSC_NO_START_STOP))
835 quirks |= NO_START_STOP;
836 if (usb_test_quirk(uaa, UQ_MSC_NO_GETMAXLUN))
837 quirks |= NO_GETMAXLUN;
838 if (usb_test_quirk(uaa, UQ_MSC_NO_INQUIRY))
839 quirks |= NO_INQUIRY;
840 if (usb_test_quirk(uaa, UQ_MSC_NO_INQUIRY_EVPD))
841 quirks |= NO_INQUIRY_EVPD;
842 if (usb_test_quirk(uaa, UQ_MSC_NO_SYNC_CACHE))
843 quirks |= NO_SYNCHRONIZE_CACHE;
844 if (usb_test_quirk(uaa, UQ_MSC_SHUTTLE_INIT))
845 quirks |= SHUTTLE_INIT;
846 if (usb_test_quirk(uaa, UQ_MSC_ALT_IFACE_1))
847 quirks |= ALT_IFACE_1;
848 if (usb_test_quirk(uaa, UQ_MSC_FLOPPY_SPEED))
849 quirks |= FLOPPY_SPEED;
850 if (usb_test_quirk(uaa, UQ_MSC_IGNORE_RESIDUE))
851 quirks |= IGNORE_RESIDUE;
852 if (usb_test_quirk(uaa, UQ_MSC_WRONG_CSWSIG))
853 quirks |= WRONG_CSWSIG;
854 if (usb_test_quirk(uaa, UQ_MSC_RBC_PAD_TO_12))
855 quirks |= RBC_PAD_TO_12;
856 if (usb_test_quirk(uaa, UQ_MSC_READ_CAP_OFFBY1))
857 quirks |= READ_CAPACITY_OFFBY1;
858 if (usb_test_quirk(uaa, UQ_MSC_FORCE_SHORT_INQ))
859 quirks |= FORCE_SHORT_INQUIRY;
860
861 done:
862 ret.quirks = quirks;
863 ret.proto = proto;
864 return (ret);
865 }
866
867 static int
868 umass_probe(device_t dev)
869 {
870 struct usb_attach_arg *uaa = device_get_ivars(dev);
871 struct umass_probe_proto temp;
872
873 if (uaa->usb_mode != USB_MODE_HOST) {
874 return (ENXIO);
875 }
876 temp = umass_probe_proto(dev, uaa);
877
878 return (temp.error);
879 }
880
881 static int
882 umass_attach(device_t dev)
883 {
884 struct umass_softc *sc = device_get_softc(dev);
885 struct usb_attach_arg *uaa = device_get_ivars(dev);
886 struct umass_probe_proto temp = umass_probe_proto(dev, uaa);
887 struct usb_interface_descriptor *id;
888 int32_t err;
889
890 /*
891 * NOTE: the softc struct is cleared in device_set_driver.
892 * We can safely call umass_detach without specifically
893 * initializing the struct.
894 */
895
896 sc->sc_dev = dev;
897 sc->sc_udev = uaa->device;
898 sc->sc_proto = temp.proto;
899 sc->sc_quirks = temp.quirks;
900 sc->sc_unit = device_get_unit(dev);
901
902 ksnprintf(sc->sc_name, sizeof(sc->sc_name),
903 "%s", device_get_nameunit(dev));
904
905 device_set_usb_desc(dev);
906
907 lockinit(&sc->sc_lock, device_get_nameunit(dev), 0, LK_CANRECURSE);
908
909 /* get interface index */
910
911 id = usbd_get_interface_descriptor(uaa->iface);
912 if (id == NULL) {
913 device_printf(dev, "failed to get "
914 "interface number\n");
915 goto detach;
916 }
917 sc->sc_iface_no = id->bInterfaceNumber;
918
919 #ifdef USB_DEBUG
920 device_printf(dev, " ");
921
922 switch (sc->sc_proto & UMASS_PROTO_COMMAND) {
923 case UMASS_PROTO_SCSI:
924 kprintf("SCSI");
925 break;
926 case UMASS_PROTO_ATAPI:
927 kprintf("8070i (ATAPI)");
928 break;
929 case UMASS_PROTO_UFI:
930 kprintf("UFI");
931 break;
932 case UMASS_PROTO_RBC:
933 kprintf("RBC");
934 break;
935 default:
936 kprintf("(unknown 0x%02x)",
937 sc->sc_proto & UMASS_PROTO_COMMAND);
938 break;
939 }
940
941 kprintf(" over ");
942
943 switch (sc->sc_proto & UMASS_PROTO_WIRE) {
944 case UMASS_PROTO_BBB:
945 kprintf("Bulk-Only");
946 break;
947 case UMASS_PROTO_CBI: /* uses Comand/Bulk pipes */
948 kprintf("CBI");
949 break;
950 case UMASS_PROTO_CBI_I: /* uses Comand/Bulk/Interrupt pipes */
951 kprintf("CBI with CCI");
952 break;
953 default:
954 kprintf("(unknown 0x%02x)",
955 sc->sc_proto & UMASS_PROTO_WIRE);
956 }
957
958 kprintf("; quirks = 0x%04x\n", sc->sc_quirks);
959 #endif
960
961 if (sc->sc_quirks & ALT_IFACE_1) {
962 err = usbd_set_alt_interface_index
963 (uaa->device, uaa->info.bIfaceIndex, 1);
964
965 if (err) {
966 DPRINTF(sc, UDMASS_USB, "could not switch to "
967 "Alt Interface 1\n");
968 goto detach;
969 }
970 }
971 /* allocate all required USB transfers */
972
973 if (sc->sc_proto & UMASS_PROTO_BBB) {
974
975 err = usbd_transfer_setup(uaa->device,
976 &uaa->info.bIfaceIndex, sc->sc_xfer, umass_bbb_config,
977 UMASS_T_BBB_MAX, sc, &sc->sc_lock);
978
979 /* skip reset first time */
980 sc->sc_last_xfer_index = UMASS_T_BBB_COMMAND;
981
982 } else if (sc->sc_proto & (UMASS_PROTO_CBI | UMASS_PROTO_CBI_I)) {
983
984 err = usbd_transfer_setup(uaa->device,
985 &uaa->info.bIfaceIndex, sc->sc_xfer, umass_cbi_config,
986 UMASS_T_CBI_MAX, sc, &sc->sc_lock);
987
988 /* skip reset first time */
989 sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
990
991 } else {
992 err = USB_ERR_INVAL;
993 }
994
995 if (err) {
996 device_printf(dev, "could not setup required "
997 "transfers, %s\n", usbd_errstr(err));
998 goto detach;
999 }
1000 sc->sc_transform =
1001 (sc->sc_proto & UMASS_PROTO_SCSI) ? &umass_scsi_transform :
1002 (sc->sc_proto & UMASS_PROTO_UFI) ? &umass_ufi_transform :
1003 (sc->sc_proto & UMASS_PROTO_ATAPI) ? &umass_atapi_transform :
1004 (sc->sc_proto & UMASS_PROTO_RBC) ? &umass_rbc_transform :
1005 &umass_no_transform;
1006
1007 /* from here onwards the device can be used. */
1008
1009 if (sc->sc_quirks & SHUTTLE_INIT) {
1010 umass_init_shuttle(sc);
1011 }
1012 /* get the maximum LUN supported by the device */
1013
1014 if (((sc->sc_proto & UMASS_PROTO_WIRE) == UMASS_PROTO_BBB) &&
1015 !(sc->sc_quirks & NO_GETMAXLUN))
1016 sc->sc_maxlun = umass_bbb_get_max_lun(sc);
1017 else
1018 sc->sc_maxlun = 0;
1019
1020 /* Prepare the SCSI command block */
1021 sc->cam_scsi_sense.opcode = REQUEST_SENSE;
1022 sc->cam_scsi_test_unit_ready.opcode = TEST_UNIT_READY;
1023
1024 /* register the SIM */
1025 err = umass_cam_attach_sim(sc);
1026 if (err) {
1027 goto detach;
1028 }
1029 /* scan the SIM */
1030 umass_cam_attach(sc);
1031
1032 DPRINTF(sc, UDMASS_GEN, "Attach finished\n");
1033
1034 return (0); /* success */
1035
1036 detach:
1037 umass_detach(dev);
1038 return (ENXIO); /* failure */
1039 }
1040
1041 static int
1042 umass_detach(device_t dev)
1043 {
1044 struct umass_softc *sc = device_get_softc(dev);
1045
1046 DPRINTF(sc, UDMASS_USB, "\n");
1047
1048 /* teardown our statemachine */
1049
1050 usbd_transfer_unsetup(sc->sc_xfer, UMASS_T_MAX);
1051
1052 lockmgr(&sc->sc_lock, LK_EXCLUSIVE);
1053 umass_cam_detach_sim(sc);
1054
1055 lockmgr(&sc->sc_lock, LK_RELEASE);
1056 lockuninit(&sc->sc_lock);
1057
1058 return (0); /* success */
1059 }
1060
1061 static void
1062 umass_init_shuttle(struct umass_softc *sc)
1063 {
1064 struct usb_device_request req;
1065 usb_error_t err;
1066 uint8_t status[2] = {0, 0};
1067
1068 /*
1069 * The Linux driver does this, but no one can tell us what the
1070 * command does.
1071 */
1072 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1073 req.bRequest = 1; /* XXX unknown command */
1074 USETW(req.wValue, 0);
1075 req.wIndex[0] = sc->sc_iface_no;
1076 req.wIndex[1] = 0;
1077 USETW(req.wLength, sizeof(status));
1078 err = usbd_do_request(sc->sc_udev, NULL, &req, &status);
1079
1080 DPRINTF(sc, UDMASS_GEN, "Shuttle init returned 0x%02x%02x\n",
1081 status[0], status[1]);
1082 }
1083
1084 /*
1085 * Generic functions to handle transfers
1086 */
1087
1088 static void
1089 umass_transfer_start(struct umass_softc *sc, uint8_t xfer_index)
1090 {
1091 DPRINTF(sc, UDMASS_GEN, "transfer index = "
1092 "%d\n", xfer_index);
1093
1094 if (sc->sc_xfer[xfer_index]) {
1095 sc->sc_last_xfer_index = xfer_index;
1096 usbd_transfer_start(sc->sc_xfer[xfer_index]);
1097 } else {
1098 umass_cancel_ccb(sc);
1099 }
1100 }
1101
1102 static void
1103 umass_reset(struct umass_softc *sc)
1104 {
1105 DPRINTF(sc, UDMASS_GEN, "resetting device\n");
1106
1107 /*
1108 * stop the last transfer, if not already stopped:
1109 */
1110 usbd_transfer_stop(sc->sc_xfer[sc->sc_last_xfer_index]);
1111 umass_transfer_start(sc, 0);
1112 }
1113
1114 static void
1115 umass_cancel_ccb(struct umass_softc *sc)
1116 {
1117 union ccb *ccb;
1118
1119 #if 0
1120 KKASSERT(lockstatus(&sc->sc_lock, curthread) != 0);
1121 #endif
1122
1123 ccb = sc->sc_transfer.ccb;
1124 sc->sc_transfer.ccb = NULL;
1125 sc->sc_last_xfer_index = 0;
1126
1127 if (ccb) {
1128 (sc->sc_transfer.callback)
1129 (sc, ccb, (sc->sc_transfer.data_len -
1130 sc->sc_transfer.actlen), STATUS_WIRE_FAILED);
1131 }
1132 }
1133
1134 static void
1135 umass_tr_error(struct usb_xfer *xfer, usb_error_t error)
1136 {
1137 struct umass_softc *sc = usbd_xfer_softc(xfer);
1138
1139 if (error != USB_ERR_CANCELLED) {
1140
1141 DPRINTF(sc, UDMASS_GEN, "transfer error, %s -> "
1142 "reset\n", usbd_errstr(error));
1143 }
1144 umass_cancel_ccb(sc);
1145 }
1146
1147 /*
1148 * BBB protocol specific functions
1149 */
1150
1151 static void
1152 umass_t_bbb_reset1_callback(struct usb_xfer *xfer, usb_error_t error)
1153 {
1154 struct umass_softc *sc = usbd_xfer_softc(xfer);
1155 struct usb_device_request req;
1156 struct usb_page_cache *pc;
1157
1158 switch (USB_GET_STATE(xfer)) {
1159 case USB_ST_TRANSFERRED:
1160 umass_transfer_start(sc, UMASS_T_BBB_RESET2);
1161 return;
1162
1163 case USB_ST_SETUP:
1164 /*
1165 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
1166 *
1167 * For Reset Recovery the host shall issue in the following order:
1168 * a) a Bulk-Only Mass Storage Reset
1169 * b) a Clear Feature HALT to the Bulk-In endpoint
1170 * c) a Clear Feature HALT to the Bulk-Out endpoint
1171 *
1172 * This is done in 3 steps, using 3 transfers:
1173 * UMASS_T_BBB_RESET1
1174 * UMASS_T_BBB_RESET2
1175 * UMASS_T_BBB_RESET3
1176 */
1177
1178 DPRINTF(sc, UDMASS_BBB, "BBB reset!\n");
1179
1180 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1181 req.bRequest = UR_BBB_RESET; /* bulk only reset */
1182 USETW(req.wValue, 0);
1183 req.wIndex[0] = sc->sc_iface_no;
1184 req.wIndex[1] = 0;
1185 USETW(req.wLength, 0);
1186
1187 pc = usbd_xfer_get_frame(xfer, 0);
1188 usbd_copy_in(pc, 0, &req, sizeof(req));
1189
1190 usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
1191 usbd_xfer_set_frames(xfer, 1);
1192 usbd_transfer_submit(xfer);
1193 return;
1194
1195 default: /* Error */
1196 umass_tr_error(xfer, error);
1197 return;
1198
1199 }
1200 }
1201
1202 static void
1203 umass_t_bbb_reset2_callback(struct usb_xfer *xfer, usb_error_t error)
1204 {
1205 umass_t_bbb_data_clear_stall_callback(xfer, UMASS_T_BBB_RESET3,
1206 UMASS_T_BBB_DATA_READ, error);
1207 }
1208
1209 static void
1210 umass_t_bbb_reset3_callback(struct usb_xfer *xfer, usb_error_t error)
1211 {
1212 umass_t_bbb_data_clear_stall_callback(xfer, UMASS_T_BBB_COMMAND,
1213 UMASS_T_BBB_DATA_WRITE, error);
1214 }
1215
1216 static void
1217 umass_t_bbb_data_clear_stall_callback(struct usb_xfer *xfer,
1218 uint8_t next_xfer, uint8_t stall_xfer, usb_error_t error)
1219 {
1220 struct umass_softc *sc = usbd_xfer_softc(xfer);
1221
1222 switch (USB_GET_STATE(xfer)) {
1223 case USB_ST_TRANSFERRED:
1224 tr_transferred:
1225 umass_transfer_start(sc, next_xfer);
1226 return;
1227
1228 case USB_ST_SETUP:
1229 if (usbd_clear_stall_callback(xfer, sc->sc_xfer[stall_xfer])) {
1230 goto tr_transferred;
1231 }
1232 return;
1233
1234 default: /* Error */
1235 umass_tr_error(xfer, error);
1236 return;
1237
1238 }
1239 }
1240
1241 static void
1242 umass_t_bbb_command_callback(struct usb_xfer *xfer, usb_error_t error)
1243 {
1244 struct umass_softc *sc = usbd_xfer_softc(xfer);
1245 union ccb *ccb = sc->sc_transfer.ccb;
1246 struct usb_page_cache *pc;
1247 uint32_t tag;
1248
1249 switch (USB_GET_STATE(xfer)) {
1250 case USB_ST_TRANSFERRED:
1251 umass_transfer_start
1252 (sc, ((sc->sc_transfer.dir == DIR_IN) ? UMASS_T_BBB_DATA_READ :
1253 (sc->sc_transfer.dir == DIR_OUT) ? UMASS_T_BBB_DATA_WRITE :
1254 UMASS_T_BBB_STATUS));
1255 return;
1256
1257 case USB_ST_SETUP:
1258
1259 sc->sc_status_try = 0;
1260
1261 if (ccb) {
1262
1263 /*
1264 * the initial value is not important,
1265 * as long as the values are unique:
1266 */
1267 tag = UGETDW(sc->cbw.dCBWTag) + 1;
1268
1269 USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE);
1270 USETDW(sc->cbw.dCBWTag, tag);
1271
1272 /*
1273 * dCBWDataTransferLength:
1274 * This field indicates the number of bytes of data that the host
1275 * intends to transfer on the IN or OUT Bulk endpoint(as indicated by
1276 * the Direction bit) during the execution of this command. If this
1277 * field is set to 0, the device will expect that no data will be
1278 * transferred IN or OUT during this command, regardless of the value
1279 * of the Direction bit defined in dCBWFlags.
1280 */
1281 USETDW(sc->cbw.dCBWDataTransferLength, sc->sc_transfer.data_len);
1282
1283 /*
1284 * dCBWFlags:
1285 * The bits of the Flags field are defined as follows:
1286 * Bits 0-6 reserved
1287 * Bit 7 Direction - this bit shall be ignored if the
1288 * dCBWDataTransferLength field is zero.
1289 * 0 = data Out from host to device
1290 * 1 = data In from device to host
1291 */
1292 sc->cbw.bCBWFlags = ((sc->sc_transfer.dir == DIR_IN) ?
1293 CBWFLAGS_IN : CBWFLAGS_OUT);
1294 sc->cbw.bCBWLUN = sc->sc_transfer.lun;
1295
1296 if (sc->sc_transfer.cmd_len > sizeof(sc->cbw.CBWCDB)) {
1297 sc->sc_transfer.cmd_len = sizeof(sc->cbw.CBWCDB);
1298 DPRINTF(sc, UDMASS_BBB, "Truncating long command!\n");
1299 }
1300 sc->cbw.bCDBLength = sc->sc_transfer.cmd_len;
1301
1302 memcpy(sc->cbw.CBWCDB, sc->sc_transfer.cmd_data,
1303 sc->sc_transfer.cmd_len);
1304
1305 memset(sc->sc_transfer.cmd_data +
1306 sc->sc_transfer.cmd_len, 0,
1307 sizeof(sc->cbw.CBWCDB) -
1308 sc->sc_transfer.cmd_len);
1309
1310 DIF(UDMASS_BBB, umass_bbb_dump_cbw(sc, &sc->cbw));
1311
1312 pc = usbd_xfer_get_frame(xfer, 0);
1313 usbd_copy_in(pc, 0, &sc->cbw, sizeof(sc->cbw));
1314 usbd_xfer_set_frame_len(xfer, 0, sizeof(sc->cbw));
1315
1316 usbd_transfer_submit(xfer);
1317 }
1318 return;
1319
1320 default: /* Error */
1321 umass_tr_error(xfer, error);
1322 return;
1323
1324 }
1325 }
1326
1327 static void
1328 umass_t_bbb_data_read_callback(struct usb_xfer *xfer, usb_error_t error)
1329 {
1330 struct umass_softc *sc = usbd_xfer_softc(xfer);
1331 uint32_t max_bulk = usbd_xfer_max_len(xfer);
1332 #ifndef UMASS_EXT_BUFFER
1333 struct usb_page_cache *pc;
1334 #endif
1335 int actlen, sumlen;
1336
1337 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1338
1339 switch (USB_GET_STATE(xfer)) {
1340 case USB_ST_TRANSFERRED:
1341 #ifndef UMASS_EXT_BUFFER
1342 pc = usbd_xfer_get_frame(xfer, 0);
1343 usbd_copy_out(pc, 0, sc->sc_transfer.data_ptr, actlen);
1344 #endif
1345 sc->sc_transfer.data_rem -= actlen;
1346 sc->sc_transfer.data_ptr += actlen;
1347 sc->sc_transfer.actlen += actlen;
1348
1349 if (actlen < sumlen) {
1350 /* short transfer */
1351 sc->sc_transfer.data_rem = 0;
1352 }
1353 case USB_ST_SETUP:
1354 DPRINTF(sc, UDMASS_BBB, "max_bulk=%d, data_rem=%d\n",
1355 max_bulk, sc->sc_transfer.data_rem);
1356
1357 if (sc->sc_transfer.data_rem == 0) {
1358 umass_transfer_start(sc, UMASS_T_BBB_STATUS);
1359 return;
1360 }
1361 if (max_bulk > sc->sc_transfer.data_rem) {
1362 max_bulk = sc->sc_transfer.data_rem;
1363 }
1364 usbd_xfer_set_timeout(xfer, sc->sc_transfer.data_timeout);
1365
1366 #ifdef UMASS_EXT_BUFFER
1367 usbd_xfer_set_frame_data(xfer, 0, sc->sc_transfer.data_ptr,
1368 max_bulk);
1369 #else
1370 usbd_xfer_set_frame_len(xfer, 0, max_bulk);
1371 #endif
1372 usbd_transfer_submit(xfer);
1373 return;
1374
1375 default: /* Error */
1376 if (error == USB_ERR_CANCELLED) {
1377 umass_tr_error(xfer, error);
1378 } else {
1379 umass_transfer_start(sc, UMASS_T_BBB_DATA_RD_CS);
1380 }
1381 return;
1382
1383 }
1384 }
1385
1386 static void
1387 umass_t_bbb_data_rd_cs_callback(struct usb_xfer *xfer, usb_error_t error)
1388 {
1389 umass_t_bbb_data_clear_stall_callback(xfer, UMASS_T_BBB_STATUS,
1390 UMASS_T_BBB_DATA_READ, error);
1391 }
1392
1393 static void
1394 umass_t_bbb_data_write_callback(struct usb_xfer *xfer, usb_error_t error)
1395 {
1396 struct umass_softc *sc = usbd_xfer_softc(xfer);
1397 uint32_t max_bulk = usbd_xfer_max_len(xfer);
1398 #ifndef UMASS_EXT_BUFFER
1399 struct usb_page_cache *pc;
1400 #endif
1401 int actlen, sumlen;
1402
1403 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1404
1405 switch (USB_GET_STATE(xfer)) {
1406 case USB_ST_TRANSFERRED:
1407 sc->sc_transfer.data_rem -= actlen;
1408 sc->sc_transfer.data_ptr += actlen;
1409 sc->sc_transfer.actlen += actlen;
1410
1411 if (actlen < sumlen) {
1412 /* short transfer */
1413 sc->sc_transfer.data_rem = 0;
1414 }
1415 case USB_ST_SETUP:
1416 DPRINTF(sc, UDMASS_BBB, "max_bulk=%d, data_rem=%d\n",
1417 max_bulk, sc->sc_transfer.data_rem);
1418
1419 if (sc->sc_transfer.data_rem == 0) {
1420 umass_transfer_start(sc, UMASS_T_BBB_STATUS);
1421 return;
1422 }
1423 if (max_bulk > sc->sc_transfer.data_rem) {
1424 max_bulk = sc->sc_transfer.data_rem;
1425 }
1426 usbd_xfer_set_timeout(xfer, sc->sc_transfer.data_timeout);
1427
1428 #ifdef UMASS_EXT_BUFFER
1429 usbd_xfer_set_frame_data(xfer, 0, sc->sc_transfer.data_ptr,
1430 max_bulk);
1431 #else
1432 pc = usbd_xfer_get_frame(xfer, 0);
1433 usbd_copy_in(pc, 0, sc->sc_transfer.data_ptr, max_bulk);
1434 usbd_xfer_set_frame_len(xfer, 0, max_bulk);
1435 #endif
1436
1437 usbd_transfer_submit(xfer);
1438 return;
1439
1440 default: /* Error */
1441 if (error == USB_ERR_CANCELLED) {
1442 umass_tr_error(xfer, error);
1443 } else {
1444 umass_transfer_start(sc, UMASS_T_BBB_DATA_WR_CS);
1445 }
1446 return;
1447
1448 }
1449 }
1450
1451 static void
1452 umass_t_bbb_data_wr_cs_callback(struct usb_xfer *xfer, usb_error_t error)
1453 {
1454 umass_t_bbb_data_clear_stall_callback(xfer, UMASS_T_BBB_STATUS,
1455 UMASS_T_BBB_DATA_WRITE, error);
1456 }
1457
1458 static void
1459 umass_t_bbb_status_callback(struct usb_xfer *xfer, usb_error_t error)
1460 {
1461 struct umass_softc *sc = usbd_xfer_softc(xfer);
1462 union ccb *ccb = sc->sc_transfer.ccb;
1463 struct usb_page_cache *pc;
1464 uint32_t residue;
1465 int actlen;
1466
1467 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
1468
1469 switch (USB_GET_STATE(xfer)) {
1470 case USB_ST_TRANSFERRED:
1471
1472 /*
1473 * Do a full reset if there is something wrong with the CSW:
1474 */
1475 sc->sc_status_try = 1;
1476
1477 /* Zero missing parts of the CSW: */
1478
1479 if (actlen < sizeof(sc->csw))
1480 memset(&sc->csw, 0, sizeof(sc->csw));
1481
1482 pc = usbd_xfer_get_frame(xfer, 0);
1483 usbd_copy_out(pc, 0, &sc->csw, actlen);
1484
1485 DIF(UDMASS_BBB, umass_bbb_dump_csw(sc, &sc->csw));
1486
1487 residue = UGETDW(sc->csw.dCSWDataResidue);
1488
1489 if ((!residue) || (sc->sc_quirks & IGNORE_RESIDUE)) {
1490 residue = (sc->sc_transfer.data_len -
1491 sc->sc_transfer.actlen);
1492 }
1493 if (residue > sc->sc_transfer.data_len) {
1494 DPRINTF(sc, UDMASS_BBB, "truncating residue from %d "
1495 "to %d bytes\n", residue, sc->sc_transfer.data_len);
1496 residue = sc->sc_transfer.data_len;
1497 }
1498 /* translate weird command-status signatures: */
1499 if (sc->sc_quirks & WRONG_CSWSIG) {
1500
1501 uint32_t temp = UGETDW(sc->csw.dCSWSignature);
1502
1503 if ((temp == CSWSIGNATURE_OLYMPUS_C1) ||
1504 (temp == CSWSIGNATURE_IMAGINATION_DBX1)) {
1505 USETDW(sc->csw.dCSWSignature, CSWSIGNATURE);
1506 }
1507 }
1508 /* check CSW and handle eventual error */
1509 if (UGETDW(sc->csw.dCSWSignature) != CSWSIGNATURE) {
1510 DPRINTF(sc, UDMASS_BBB, "bad CSW signature 0x%08x != 0x%08x\n",
1511 UGETDW(sc->csw.dCSWSignature), CSWSIGNATURE);
1512 /*
1513 * Invalid CSW: Wrong signature or wrong tag might
1514 * indicate that we lost synchronization. Reset the
1515 * device.
1516 */
1517 goto tr_error;
1518 } else if (UGETDW(sc->csw.dCSWTag) != UGETDW(sc->cbw.dCBWTag)) {
1519 DPRINTF(sc, UDMASS_BBB, "Invalid CSW: tag 0x%08x should be "
1520 "0x%08x\n", UGETDW(sc->csw.dCSWTag),
1521 UGETDW(sc->cbw.dCBWTag));
1522 goto tr_error;
1523 } else if (sc->csw.bCSWStatus > CSWSTATUS_PHASE) {
1524 DPRINTF(sc, UDMASS_BBB, "Invalid CSW: status %d > %d\n",
1525 sc->csw.bCSWStatus, CSWSTATUS_PHASE);
1526 goto tr_error;
1527 } else if (sc->csw.bCSWStatus == CSWSTATUS_PHASE) {
1528 DPRINTF(sc, UDMASS_BBB, "Phase error, residue = "
1529 "%d\n", residue);
1530 goto tr_error;
1531 } else if (sc->sc_transfer.actlen > sc->sc_transfer.data_len) {
1532 DPRINTF(sc, UDMASS_BBB, "Buffer overrun %d > %d\n",
1533 sc->sc_transfer.actlen, sc->sc_transfer.data_len);
1534 goto tr_error;
1535 } else if (sc->csw.bCSWStatus == CSWSTATUS_FAILED) {
1536 DPRINTF(sc, UDMASS_BBB, "Command failed, residue = "
1537 "%d\n", residue);
1538
1539 sc->sc_transfer.ccb = NULL;
1540
1541 sc->sc_last_xfer_index = UMASS_T_BBB_COMMAND;
1542
1543 (sc->sc_transfer.callback)
1544 (sc, ccb, residue, STATUS_CMD_FAILED);
1545 } else {
1546 sc->sc_transfer.ccb = NULL;
1547
1548 sc->sc_last_xfer_index = UMASS_T_BBB_COMMAND;
1549
1550 (sc->sc_transfer.callback)
1551 (sc, ccb, residue, STATUS_CMD_OK);
1552 }
1553 return;
1554
1555 case USB_ST_SETUP:
1556 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1557 usbd_transfer_submit(xfer);
1558 return;
1559
1560 default:
1561 tr_error:
1562 DPRINTF(sc, UDMASS_BBB, "Failed to read CSW: %s, try %d\n",
1563 usbd_errstr(error), sc->sc_status_try);
1564
1565 if ((error == USB_ERR_CANCELLED) ||
1566 (sc->sc_status_try)) {
1567 umass_tr_error(xfer, error);
1568 } else {
1569 sc->sc_status_try = 1;
1570 umass_transfer_start(sc, UMASS_T_BBB_DATA_RD_CS);
1571 }
1572 return;
1573
1574 }
1575 }
1576
1577 static void
1578 umass_command_start(struct umass_softc *sc, uint8_t dir,
1579 void *data_ptr, uint32_t data_len,
1580 uint32_t data_timeout, umass_callback_t *callback,
1581 union ccb *ccb)
1582 {
1583 sc->sc_transfer.lun = ccb->ccb_h.target_lun;
1584
1585 /*
1586 * NOTE: assumes that "sc->sc_transfer.cmd_data" and
1587 * "sc->sc_transfer.cmd_len" has been properly
1588 * initialized.
1589 */
1590
1591 sc->sc_transfer.dir = data_len ? dir : DIR_NONE;
1592 sc->sc_transfer.data_ptr = data_ptr;
1593 sc->sc_transfer.data_len = data_len;
1594 sc->sc_transfer.data_rem = data_len;
1595 sc->sc_transfer.data_timeout = (data_timeout + UMASS_TIMEOUT);
1596
1597 sc->sc_transfer.actlen = 0;
1598 sc->sc_transfer.callback = callback;
1599 sc->sc_transfer.ccb = ccb;
1600
1601 if (sc->sc_xfer[sc->sc_last_xfer_index]) {
1602 usbd_transfer_start(sc->sc_xfer[sc->sc_last_xfer_index]);
1603 } else {
1604 ccb->ccb_h.status = CAM_TID_INVALID;
1605 xpt_done(ccb);
1606 }
1607 }
1608
1609 static uint8_t
1610 umass_bbb_get_max_lun(struct umass_softc *sc)
1611 {
1612 struct usb_device_request req;
1613 usb_error_t err;
1614 uint8_t buf = 0;
1615
1616 /* The Get Max Lun command is a class-specific request. */
1617 req.bmRequestType = UT_READ_CLASS_INTERFACE;
1618 req.bRequest = UR_BBB_GET_MAX_LUN;
1619 USETW(req.wValue, 0);
1620 req.wIndex[0] = sc->sc_iface_no;
1621 req.wIndex[1] = 0;
1622 USETW(req.wLength, 1);
1623
1624 err = usbd_do_request(sc->sc_udev, NULL, &req, &buf);
1625 if (err) {
1626 buf = 0;
1627
1628 /* Device doesn't support Get Max Lun request. */
1629 kprintf("%s: Get Max Lun not supported (%s)\n",
1630 sc->sc_name, usbd_errstr(err));
1631 }
1632 return (buf);
1633 }
1634
1635 /*
1636 * Command/Bulk/Interrupt (CBI) specific functions
1637 */
1638
1639 static void
1640 umass_cbi_start_status(struct umass_softc *sc)
1641 {
1642 if (sc->sc_xfer[UMASS_T_CBI_STATUS]) {
1643 umass_transfer_start(sc, UMASS_T_CBI_STATUS);
1644 } else {
1645 union ccb *ccb = sc->sc_transfer.ccb;
1646
1647 sc->sc_transfer.ccb = NULL;
1648
1649 sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
1650
1651 (sc->sc_transfer.callback)
1652 (sc, ccb, (sc->sc_transfer.data_len -
1653 sc->sc_transfer.actlen), STATUS_CMD_UNKNOWN);
1654 }
1655 }
1656
1657 static void
1658 umass_t_cbi_reset1_callback(struct usb_xfer *xfer, usb_error_t error)
1659 {
1660 struct umass_softc *sc = usbd_xfer_softc(xfer);
1661 struct usb_device_request req;
1662 struct usb_page_cache *pc;
1663 uint8_t buf[UMASS_CBI_DIAGNOSTIC_CMDLEN];
1664
1665 uint8_t i;
1666
1667 switch (USB_GET_STATE(xfer)) {
1668 case USB_ST_TRANSFERRED:
1669 umass_transfer_start(sc, UMASS_T_CBI_RESET2);
1670 break;
1671
1672 case USB_ST_SETUP:
1673 /*
1674 * Command Block Reset Protocol
1675 *
1676 * First send a reset request to the device. Then clear
1677 * any possibly stalled bulk endpoints.
1678 *
1679 * This is done in 3 steps, using 3 transfers:
1680 * UMASS_T_CBI_RESET1
1681 * UMASS_T_CBI_RESET2
1682 * UMASS_T_CBI_RESET3
1683 * UMASS_T_CBI_RESET4 (only if there is an interrupt endpoint)
1684 */
1685
1686 DPRINTF(sc, UDMASS_CBI, "CBI reset!\n");
1687
1688 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1689 req.bRequest = UR_CBI_ADSC;
1690 USETW(req.wValue, 0);
1691 req.wIndex[0] = sc->sc_iface_no;
1692 req.wIndex[1] = 0;
1693 USETW(req.wLength, UMASS_CBI_DIAGNOSTIC_CMDLEN);
1694
1695 /*
1696 * The 0x1d code is the SEND DIAGNOSTIC command. To
1697 * distinguish between the two, the last 10 bytes of the CBL
1698 * is filled with 0xff (section 2.2 of the CBI
1699 * specification)
1700 */
1701 buf[0] = 0x1d; /* Command Block Reset */
1702 buf[1] = 0x04;
1703
1704 for (i = 2; i < UMASS_CBI_DIAGNOSTIC_CMDLEN; i++) {
1705 buf[i] = 0xff;
1706 }
1707
1708 pc = usbd_xfer_get_frame(xfer, 0);
1709 usbd_copy_in(pc, 0, &req, sizeof(req));
1710 pc = usbd_xfer_get_frame(xfer, 1);
1711 usbd_copy_in(pc, 0, buf, sizeof(buf));
1712
1713 usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
1714 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf));
1715 usbd_xfer_set_frames(xfer, 2);
1716 usbd_transfer_submit(xfer);
1717 break;
1718
1719 default: /* Error */
1720 if (error == USB_ERR_CANCELLED)
1721 umass_tr_error(xfer, error);
1722 else
1723 umass_transfer_start(sc, UMASS_T_CBI_RESET2);
1724 break;
1725
1726 }
1727 }
1728
1729 static void
1730 umass_t_cbi_reset2_callback(struct usb_xfer *xfer, usb_error_t error)
1731 {
1732 umass_t_cbi_data_clear_stall_callback(xfer, UMASS_T_CBI_RESET3,
1733 UMASS_T_CBI_DATA_READ, error);
1734 }
1735
1736 static void
1737 umass_t_cbi_reset3_callback(struct usb_xfer *xfer, usb_error_t error)
1738 {
1739 struct umass_softc *sc = usbd_xfer_softc(xfer);
1740
1741 umass_t_cbi_data_clear_stall_callback
1742 (xfer, (sc->sc_xfer[UMASS_T_CBI_RESET4] &&
1743 sc->sc_xfer[UMASS_T_CBI_STATUS]) ?
1744 UMASS_T_CBI_RESET4 : UMASS_T_CBI_COMMAND,
1745 UMASS_T_CBI_DATA_WRITE, error);
1746 }
1747
1748 static void
1749 umass_t_cbi_reset4_callback(struct usb_xfer *xfer, usb_error_t error)
1750 {
1751 umass_t_cbi_data_clear_stall_callback(xfer, UMASS_T_CBI_COMMAND,
1752 UMASS_T_CBI_STATUS, error);
1753 }
1754
1755 static void
1756 umass_t_cbi_data_clear_stall_callback(struct usb_xfer *xfer,
1757 uint8_t next_xfer, uint8_t stall_xfer, usb_error_t error)
1758 {
1759 struct umass_softc *sc = usbd_xfer_softc(xfer);
1760
1761 switch (USB_GET_STATE(xfer)) {
1762 case USB_ST_TRANSFERRED:
1763 tr_transferred:
1764 if (next_xfer == UMASS_T_CBI_STATUS) {
1765 umass_cbi_start_status(sc);
1766 } else {
1767 umass_transfer_start(sc, next_xfer);
1768 }
1769 break;
1770
1771 case USB_ST_SETUP:
1772 if (usbd_clear_stall_callback(xfer, sc->sc_xfer[stall_xfer])) {
1773 goto tr_transferred; /* should not happen */
1774 }
1775 break;
1776
1777 default: /* Error */
1778 umass_tr_error(xfer, error);
1779 break;
1780
1781 }
1782 }
1783
1784 static void
1785 umass_t_cbi_command_callback(struct usb_xfer *xfer, usb_error_t error)
1786 {
1787 struct umass_softc *sc = usbd_xfer_softc(xfer);
1788 union ccb *ccb = sc->sc_transfer.ccb;
1789 struct usb_device_request req;
1790 struct usb_page_cache *pc;
1791
1792 switch (USB_GET_STATE(xfer)) {
1793 case USB_ST_TRANSFERRED:
1794
1795 if (sc->sc_transfer.dir == DIR_NONE) {
1796 umass_cbi_start_status(sc);
1797 } else {
1798 umass_transfer_start
1799 (sc, (sc->sc_transfer.dir == DIR_IN) ?
1800 UMASS_T_CBI_DATA_READ : UMASS_T_CBI_DATA_WRITE);
1801 }
1802 break;
1803
1804 case USB_ST_SETUP:
1805
1806 if (ccb) {
1807
1808 /*
1809 * do a CBI transfer with cmd_len bytes from
1810 * cmd_data, possibly a data phase of data_len
1811 * bytes from/to the device and finally a status
1812 * read phase.
1813 */
1814
1815 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1816 req.bRequest = UR_CBI_ADSC;
1817 USETW(req.wValue, 0);
1818 req.wIndex[0] = sc->sc_iface_no;
1819 req.wIndex[1] = 0;
1820 req.wLength[0] = sc->sc_transfer.cmd_len;
1821 req.wLength[1] = 0;
1822
1823 pc = usbd_xfer_get_frame(xfer, 0);
1824 usbd_copy_in(pc, 0, &req, sizeof(req));
1825 pc = usbd_xfer_get_frame(xfer, 1);
1826 usbd_copy_in(pc, 0, sc->sc_transfer.cmd_data,
1827 sc->sc_transfer.cmd_len);
1828
1829 usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
1830 usbd_xfer_set_frame_len(xfer, 1, sc->sc_transfer.cmd_len);
1831 usbd_xfer_set_frames(xfer,
1832 sc->sc_transfer.cmd_len ? 2 : 1);
1833
1834 DIF(UDMASS_CBI,
1835 umass_cbi_dump_cmd(sc,
1836 sc->sc_transfer.cmd_data,
1837 sc->sc_transfer.cmd_len));
1838
1839 usbd_transfer_submit(xfer);
1840 }
1841 break;
1842
1843 default: /* Error */
1844 /*
1845 * STALL on the control pipe can be result of the command error.
1846 * Attempt to clear this STALL same as for bulk pipe also
1847 * results in command completion interrupt, but ASC/ASCQ there
1848 * look like not always valid, so don't bother about it.
1849 */
1850 if ((error == USB_ERR_STALLED) ||
1851 (sc->sc_transfer.callback == &umass_cam_cb)) {
1852 sc->sc_transfer.ccb = NULL;
1853 (sc->sc_transfer.callback)
1854 (sc, ccb, sc->sc_transfer.data_len,
1855 STATUS_CMD_UNKNOWN);
1856 } else {
1857 umass_tr_error(xfer, error);
1858 /* skip reset */
1859 sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
1860 }
1861 break;
1862 }
1863 }
1864
1865 static void
1866 umass_t_cbi_data_read_callback(struct usb_xfer *xfer, usb_error_t error)
1867 {
1868 struct umass_softc *sc = usbd_xfer_softc(xfer);
1869 uint32_t max_bulk = usbd_xfer_max_len(xfer);
1870 #ifndef UMASS_EXT_BUFFER
1871 struct usb_page_cache *pc;
1872 #endif
1873 int actlen, sumlen;
1874
1875 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1876
1877 switch (USB_GET_STATE(xfer)) {
1878 case USB_ST_TRANSFERRED:
1879 #ifndef UMASS_EXT_BUFFER
1880 pc = usbd_xfer_get_frame(xfer, 0);
1881 usbd_copy_out(pc, 0, sc->sc_transfer.data_ptr, actlen);
1882 #endif
1883 sc->sc_transfer.data_rem -= actlen;
1884 sc->sc_transfer.data_ptr += actlen;
1885 sc->sc_transfer.actlen += actlen;
1886
1887 if (actlen < sumlen) {
1888 /* short transfer */
1889 sc->sc_transfer.data_rem = 0;
1890 }
1891 case USB_ST_SETUP:
1892 DPRINTF(sc, UDMASS_CBI, "max_bulk=%d, data_rem=%d\n",
1893 max_bulk, sc->sc_transfer.data_rem);
1894
1895 if (sc->sc_transfer.data_rem == 0) {
1896 umass_cbi_start_status(sc);
1897 break;
1898 }
1899 if (max_bulk > sc->sc_transfer.data_rem) {
1900 max_bulk = sc->sc_transfer.data_rem;
1901 }
1902 usbd_xfer_set_timeout(xfer, sc->sc_transfer.data_timeout);
1903
1904 #ifdef UMASS_EXT_BUFFER
1905 usbd_xfer_set_frame_data(xfer, 0, sc->sc_transfer.data_ptr,
1906 max_bulk);
1907 #else
1908 usbd_xfer_set_frame_len(xfer, 0, max_bulk);
1909 #endif
1910 usbd_transfer_submit(xfer);
1911 break;
1912
1913 default: /* Error */
1914 if ((error == USB_ERR_CANCELLED) ||
1915 (sc->sc_transfer.callback != &umass_cam_cb)) {
1916 umass_tr_error(xfer, error);
1917 } else {
1918 umass_transfer_start(sc, UMASS_T_CBI_DATA_RD_CS);
1919 }
1920 break;
1921
1922 }
1923 }
1924
1925 static void
1926 umass_t_cbi_data_rd_cs_callback(struct usb_xfer *xfer, usb_error_t error)
1927 {
1928 umass_t_cbi_data_clear_stall_callback(xfer, UMASS_T_CBI_STATUS,
1929 UMASS_T_CBI_DATA_READ, error);
1930 }
1931
1932 static void
1933 umass_t_cbi_data_write_callback(struct usb_xfer *xfer, usb_error_t error)
1934 {
1935 struct umass_softc *sc = usbd_xfer_softc(xfer);
1936 uint32_t max_bulk = usbd_xfer_max_len(xfer);
1937 #ifndef UMASS_EXT_BUFFER
1938 struct usb_page_cache *pc;
1939 #endif
1940 int actlen, sumlen;
1941
1942 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1943
1944 switch (USB_GET_STATE(xfer)) {
1945 case USB_ST_TRANSFERRED:
1946 sc->sc_transfer.data_rem -= actlen;
1947 sc->sc_transfer.data_ptr += actlen;
1948 sc->sc_transfer.actlen += actlen;
1949
1950 if (actlen < sumlen) {
1951 /* short transfer */
1952 sc->sc_transfer.data_rem = 0;
1953 }
1954 case USB_ST_SETUP:
1955 DPRINTF(sc, UDMASS_CBI, "max_bulk=%d, data_rem=%d\n",
1956 max_bulk, sc->sc_transfer.data_rem);
1957
1958 if (sc->sc_transfer.data_rem == 0) {
1959 umass_cbi_start_status(sc);
1960 break;
1961 }
1962 if (max_bulk > sc->sc_transfer.data_rem) {
1963 max_bulk = sc->sc_transfer.data_rem;
1964 }
1965 usbd_xfer_set_timeout(xfer, sc->sc_transfer.data_timeout);
1966
1967 #ifdef UMASS_EXT_BUFFER
1968 usbd_xfer_set_frame_data(xfer, 0, sc->sc_transfer.data_ptr,
1969 max_bulk);
1970 #else
1971 pc = usbd_xfer_get_frame(xfer, 0);
1972 usbd_copy_in(pc, 0, sc->sc_transfer.data_ptr, max_bulk);
1973 usbd_xfer_set_frame_len(xfer, 0, max_bulk);
1974 #endif
1975
1976 usbd_transfer_submit(xfer);
1977 break;
1978
1979 default: /* Error */
1980 if ((error == USB_ERR_CANCELLED) ||
1981 (sc->sc_transfer.callback != &umass_cam_cb)) {
1982 umass_tr_error(xfer, error);
1983 } else {
1984 umass_transfer_start(sc, UMASS_T_CBI_DATA_WR_CS);
1985 }
1986 break;
1987
1988 }
1989 }
1990
1991 static void
1992 umass_t_cbi_data_wr_cs_callback(struct usb_xfer *xfer, usb_error_t error)
1993 {
1994 umass_t_cbi_data_clear_stall_callback(xfer, UMASS_T_CBI_STATUS,
1995 UMASS_T_CBI_DATA_WRITE, error);
1996 }
1997
1998 static void
1999 umass_t_cbi_status_callback(struct usb_xfer *xfer, usb_error_t error)
2000 {
2001 struct umass_softc *sc = usbd_xfer_softc(xfer);
2002 union ccb *ccb = sc->sc_transfer.ccb;
2003 struct usb_page_cache *pc;
2004 uint32_t residue;
2005 uint8_t status;
2006 int actlen;
2007
2008 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
2009
2010 switch (USB_GET_STATE(xfer)) {
2011 case USB_ST_TRANSFERRED:
2012
2013 if (actlen < sizeof(sc->sbl)) {
2014 goto tr_setup;
2015 }
2016 pc = usbd_xfer_get_frame(xfer, 0);
2017 usbd_copy_out(pc, 0, &sc->sbl, sizeof(sc->sbl));
2018
2019 residue = (sc->sc_transfer.data_len -
2020 sc->sc_transfer.actlen);
2021
2022 /* dissect the information in the buffer */
2023
2024 if (sc->sc_proto & UMASS_PROTO_UFI) {
2025
2026 /*
2027 * Section 3.4.3.1.3 specifies that the UFI command
2028 * protocol returns an ASC and ASCQ in the interrupt
2029 * data block.
2030 */
2031
2032 DPRINTF(sc, UDMASS_CBI, "UFI CCI, ASC = 0x%02x, "
2033 "ASCQ = 0x%02x\n", sc->sbl.ufi.asc,
2034 sc->sbl.ufi.ascq);
2035
2036 status = (((sc->sbl.ufi.asc == 0) &&
2037 (sc->sbl.ufi.ascq == 0)) ?
2038 STATUS_CMD_OK : STATUS_CMD_FAILED);
2039
2040 sc->sc_transfer.ccb = NULL;
2041
2042 sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
2043
2044 (sc->sc_transfer.callback)
2045 (sc, ccb, residue, status);
2046
2047 break;
2048
2049 } else {
2050
2051 /* Command Interrupt Data Block */
2052
2053 DPRINTF(sc, UDMASS_CBI, "type=0x%02x, value=0x%02x\n",
2054 sc->sbl.common.type, sc->sbl.common.value);
2055
2056 if (sc->sbl.common.type == IDB_TYPE_CCI) {
2057
2058 status = (sc->sbl.common.value & IDB_VALUE_STATUS_MASK);
2059
2060 status = ((status == IDB_VALUE_PASS) ? STATUS_CMD_OK :
2061 (status == IDB_VALUE_FAIL) ? STATUS_CMD_FAILED :
2062 (status == IDB_VALUE_PERSISTENT) ? STATUS_CMD_FAILED :
2063 STATUS_WIRE_FAILED);
2064
2065 sc->sc_transfer.ccb = NULL;
2066
2067 sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
2068
2069 (sc->sc_transfer.callback)
2070 (sc, ccb, residue, status);
2071
2072 break;
2073 }
2074 }
2075
2076 /* fallthrough */
2077
2078 case USB_ST_SETUP:
2079 tr_setup:
2080 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
2081 usbd_transfer_submit(xfer);
2082 break;
2083
2084 default: /* Error */
2085 DPRINTF(sc, UDMASS_CBI, "Failed to read CSW: %s\n",
2086 usbd_errstr(error));
2087 umass_tr_error(xfer, error);
2088 break;
2089
2090 }
2091 }
2092
2093 /*
2094 * CAM specific functions (used by SCSI, UFI, 8070i (ATAPI))
2095 */
2096
2097 static int
2098 umass_cam_attach_sim(struct umass_softc *sc)
2099 {
2100 struct cam_devq *devq; /* Per device Queue */
2101
2102 /*
2103 * A HBA is attached to the CAM layer.
2104 *
2105 * The CAM layer will then after a while start probing for devices on
2106 * the bus. The number of SIMs is limited to one.
2107 */
2108
2109 usb_callout_init_mtx(&sc->sc_rescan_timeout, &sc->sc_lock, 0);
2110 devq = cam_simq_alloc(1 /* maximum openings */ );
2111 if (devq == NULL) {
2112 return (ENOMEM);
2113 }
2114 sc->sc_sim = cam_sim_alloc
2115 (umass_cam_action, umass_cam_poll,
2116 DEVNAME_SIM,
2117 sc /* priv */ ,
2118 sc->sc_unit /* unit number */ ,
2119 &sc->sc_lock /* mutex */ ,
2120 1 /* maximum device openings */ ,
2121 0 /* maximum tagged device openings */ ,
2122 devq);
2123
2124 cam_simq_release(devq);
2125 if (sc->sc_sim == NULL) {
2126 return (ENOMEM);
2127 }
2128
2129 lockmgr(&sc->sc_lock, LK_EXCLUSIVE);
2130
2131 if (xpt_bus_register(sc->sc_sim, sc->sc_unit) != CAM_SUCCESS) {
2132 lockmgr(&sc->sc_lock, LK_RELEASE);
2133 cam_sim_free(sc->sc_sim);
2134 sc->sc_sim = NULL;
2135 return (ENOMEM);
2136 }
2137
2138 lockmgr(&sc->sc_lock, LK_RELEASE);
2139 return (0);
2140 }
2141
2142 static void
2143 umass_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
2144 {
2145 #ifdef USB_DEBUG
2146 if (ccb->ccb_h.status != CAM_REQ_CMP) {
2147 kprintf("%s:%d Rescan failed, 0x%04x\n",
2148 periph->periph_name, periph->unit_number,
2149 ccb->ccb_h.status);
2150 } else {
2151 kprintf("%s%d: Rescan succeeded\n",
2152 periph->periph_name, periph->unit_number);
2153 }
2154 #endif
2155
2156 xpt_free_path(ccb->ccb_h.path);
2157 kfree(ccb, M_USBDEV);
2158 }
2159
2160 /*
2161 * Rescan the SCSI bus to detect newly added devices. We use
2162 * an async rescan to avoid reentrancy issues.
2163 */
2164 static void
2165 umass_cam_rescan(void *addr)
2166 {
2167 struct umass_softc *sc = (struct umass_softc *) addr;
2168 struct cam_path *path;
2169 union ccb *ccb;
2170
2171 ccb = kmalloc(sizeof(union ccb), M_USBDEV, M_INTWAIT|M_ZERO);
2172
2173 DPRINTF(sc, UDMASS_SCSI, "scbus%d: scanning for %s:%d:%d:%d\n",
2174 cam_sim_path(sc->sc_sim),
2175 device_get_nameunit(sc->sc_dev), cam_sim_path(sc->sc_sim),
2176 device_get_unit(sc->sc_dev), CAM_LUN_WILDCARD);
2177
2178 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->sc_sim),
2179 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
2180 {
2181 kfree(ccb, M_USBDEV);
2182 return;
2183 }
2184
2185 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/);
2186 ccb->ccb_h.func_code = XPT_SCAN_BUS;
2187 ccb->ccb_h.cbfcnp = umass_cam_rescan_callback;
2188 ccb->crcn.flags = CAM_FLAG_NONE;
2189 xpt_action_async(ccb);
2190
2191 /* The scan is in progress now. */
2192 }
2193
2194
2195 static void
2196 umass_cam_attach(struct umass_softc *sc)
2197 {
2198 #ifndef USB_DEBUG
2199 if (bootverbose)
2200 #endif
2201 kprintf("%s:%d:%d:%d: Attached to scbus%d\n",
2202 sc->sc_name, cam_sim_path(sc->sc_sim),
2203 sc->sc_unit, CAM_LUN_WILDCARD,
2204 cam_sim_path(sc->sc_sim));
2205
2206 if (!cold) {
2207 /*
2208 * failure is benign, as the user can still do it by hand
2209 * (camcontrol rescan <busno>). Only do this if we are not
2210 * booting, because CAM does a scan after booting has
2211 * completed, when interrupts have been enabled.
2212 */
2213 usb_callout_reset(&sc->sc_rescan_timeout, USB_MS_TO_TICKS(200),
2214 umass_cam_rescan, sc);
2215 }
2216 }
2217
2218 /* umass_cam_detach
2219 * detach from the CAM layer
2220 */
2221
2222 static void
2223 umass_cam_detach_sim(struct umass_softc *sc)
2224 {
2225 if (sc->sc_sim != NULL) {
2226 if (xpt_bus_deregister(cam_sim_path(sc->sc_sim))) {
2227 /* accessing the softc is not possible after this */
2228 sc->sc_sim->softc = UMASS_GONE;
2229 cam_sim_free(sc->sc_sim);
2230 } else {
2231 panic("%s: CAM layer is busy\n",
2232 sc->sc_name);
2233 }
2234 sc->sc_sim = NULL;
2235 }
2236 }
2237
2238 /* umass_cam_action
2239 * CAM requests for action come through here
2240 */
2241
2242 static void
2243 umass_cam_action(struct cam_sim *sim, union ccb *ccb)
2244 {
2245 struct umass_softc *sc = (struct umass_softc *)sim->softc;
2246
2247 if (sc == UMASS_GONE ||
2248 (sc != NULL && !usbd_device_attached(sc->sc_udev))) {
2249 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
2250 xpt_done(ccb);
2251 return;
2252 }
2253 if (sc) {
2254 lockmgr(&sc->sc_lock, LK_EXCLUSIVE);
2255 }
2256 /*
2257 * Verify, depending on the operation to perform, that we either got
2258 * a valid sc, because an existing target was referenced, or
2259 * otherwise the SIM is addressed.
2260 *
2261 * This avoids bombing out at a printf and does give the CAM layer some
2262 * sensible feedback on errors.
2263 */
2264 switch (ccb->ccb_h.func_code) {
2265 case XPT_SCSI_IO:
2266 case XPT_RESET_DEV:
2267 case XPT_GET_TRAN_SETTINGS:
2268 case XPT_SET_TRAN_SETTINGS:
2269 case XPT_CALC_GEOMETRY:
2270 /* the opcodes requiring a target. These should never occur. */
2271 if (sc == NULL) {
2272 DPRINTF(sc, UDMASS_GEN, "%s:xx:%d:%d:func_code 0x%04x: "
2273 "Invalid target (target needed)\n",
2274 DEVNAME_SIM,
2275 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2276 ccb->ccb_h.func_code);
2277
2278 ccb->ccb_h.status = CAM_TID_INVALID;
2279 xpt_done(ccb);
2280 goto done;
2281 }
2282 break;
2283 case XPT_PATH_INQ:
2284 case XPT_NOOP:
2285 /*
2286 * The opcodes sometimes aimed at a target (sc is valid),
2287 * sometimes aimed at the SIM (sc is invalid and target is
2288 * CAM_TARGET_WILDCARD)
2289 */
2290 if ((sc == NULL) &&
2291 (ccb->ccb_h.target_id != CAM_TARGET_WILDCARD)) {
2292 DPRINTF(sc, UDMASS_SCSI, "%s:%d:%d:%d:func_code 0x%04x: "
2293 "Invalid target (no wildcard)\n",
2294 DEVNAME_SIM, cam_sim_path(sc->sc_sim),
2295 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2296 ccb->ccb_h.func_code);
2297
2298 ccb->ccb_h.status = CAM_TID_INVALID;
2299 xpt_done(ccb);
2300 goto done;
2301 }
2302 break;
2303 default:
2304 /* XXX Hm, we should check the input parameters */
2305 break;
2306 }
2307
2308 /* Perform the requested action */
2309 switch (ccb->ccb_h.func_code) {
2310 case XPT_SCSI_IO:
2311 {
2312 uint8_t *cmd;
2313 uint8_t dir;
2314
2315 if (ccb->csio.ccb_h.flags & CAM_CDB_POINTER) {
2316 cmd = (uint8_t *)(ccb->csio.cdb_io.cdb_ptr);
2317 } else {
2318 cmd = (uint8_t *)(ccb->csio.cdb_io.cdb_bytes);
2319 }
2320
2321 DPRINTF(sc, UDMASS_SCSI, "%d:%d:%d:XPT_SCSI_IO: "
2322 "cmd: 0x%02x, flags: 0x%02x, "
2323 "%db cmd/%db data/%db sense\n",
2324 cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
2325 ccb->ccb_h.target_lun, cmd[0],
2326 ccb->ccb_h.flags & CAM_DIR_MASK, ccb->csio.cdb_len,
2327 ccb->csio.dxfer_len, ccb->csio.sense_len);
2328
2329 if (sc->sc_transfer.ccb) {
2330 DPRINTF(sc, UDMASS_SCSI, "%d:%d:%d:XPT_SCSI_IO: "
2331 "I/O in progress, deferring\n",
2332 cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
2333 ccb->ccb_h.target_lun);
2334 ccb->ccb_h.status = CAM_SCSI_BUSY;
2335 xpt_done(ccb);
2336 goto done;
2337 }
2338 switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
2339 case CAM_DIR_IN:
2340 dir = DIR_IN;
2341 break;
2342 case CAM_DIR_OUT:
2343 dir = DIR_OUT;
2344 DIF(UDMASS_SCSI,
2345 umass_dump_buffer(sc, ccb->csio.data_ptr,
2346 ccb->csio.dxfer_len, 48));
2347 break;
2348 default:
2349 dir = DIR_NONE;
2350 }
2351
2352 ccb->ccb_h.status = CAM_REQ_INPROG | CAM_SIM_QUEUED;
2353
2354 /*
2355 * sc->sc_transform will convert the command to the
2356 * command format needed by the specific command set
2357 * and return the converted command in
2358 * "sc->sc_transfer.cmd_data"
2359 */
2360 if (umass_std_transform(sc, ccb, cmd, ccb->csio.cdb_len)) {
2361
2362 if (sc->sc_transfer.cmd_data[0] == INQUIRY) {
2363 const char *pserial;
2364
2365 pserial = usb_get_serial(sc->sc_udev);
2366
2367 /*
2368 * Umass devices don't generally report their serial numbers
2369 * in the usual SCSI way. Emulate it here.
2370 */
2371 if ((sc->sc_transfer.cmd_data[1] & SI_EVPD) &&
2372 (sc->sc_transfer.cmd_data[2] == SVPD_UNIT_SERIAL_NUMBER) &&
2373 (pserial[0] != '\0')) {
2374 struct scsi_vpd_unit_serial_number *vpd_serial;
2375
2376 vpd_serial = (struct scsi_vpd_unit_serial_number *)ccb->csio.data_ptr;
2377 vpd_serial->length = strlen(pserial);
2378 if (vpd_serial->length > sizeof(vpd_serial->serial_num))
2379 vpd_serial->length = sizeof(vpd_serial->serial_num);
2380 memcpy(vpd_serial->serial_num, pserial, vpd_serial->length);
2381 ccb->csio.scsi_status = SCSI_STATUS_OK;
2382 ccb->ccb_h.status = CAM_REQ_CMP;
2383 xpt_done(ccb);
2384 goto done;
2385 }
2386
2387 /*
2388 * Handle EVPD inquiry for broken devices first
2389 * NO_INQUIRY also implies NO_INQUIRY_EVPD
2390 */
2391 if ((sc->sc_quirks & (NO_INQUIRY_EVPD | NO_INQUIRY)) &&
2392 (sc->sc_transfer.cmd_data[1] & SI_EVPD)) {
2393
2394 #if 0 /* XXXDF */
2395 scsi_set_sense_data(&ccb->csio.sense_data,
2396 /*sense_format*/ SSD_TYPE_NONE,
2397 /*current_error*/ 1,
2398 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
2399 /*asc*/ 0x24,
2400 /*ascq*/ 0x00,
2401 /*extra args*/ SSD_ELEM_NONE);
2402 #endif
2403 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
2404 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR |
2405 CAM_AUTOSNS_VALID;
2406 xpt_done(ccb);
2407 goto done;
2408 }
2409 /*
2410 * Return fake inquiry data for
2411 * broken devices
2412 */
2413 if (sc->sc_quirks & NO_INQUIRY) {
2414 memcpy(ccb->csio.data_ptr, &fake_inq_data,
2415 sizeof(fake_inq_data));
2416 ccb->csio.scsi_status = SCSI_STATUS_OK;
2417 ccb->ccb_h.status = CAM_REQ_CMP;
2418 xpt_done(ccb);
2419 goto done;
2420 }
2421 if (sc->sc_quirks & FORCE_SHORT_INQUIRY) {
2422 ccb->csio.dxfer_len = SHORT_INQUIRY_LENGTH;
2423 }
2424 } else if (sc->sc_transfer.cmd_data[0] == SYNCHRONIZE_CACHE) {
2425 if (sc->sc_quirks & NO_SYNCHRONIZE_CACHE) {
2426 ccb->csio.scsi_status = SCSI_STATUS_OK;
2427 ccb->ccb_h.status = CAM_REQ_CMP;
2428 xpt_done(ccb);
2429 goto done;
2430 }
2431 }
2432 umass_command_start(sc, dir, ccb->csio.data_ptr,
2433 ccb->csio.dxfer_len,
2434 ccb->ccb_h.timeout,
2435 &umass_cam_cb, ccb);
2436 }
2437 break;
2438 }
2439 case XPT_PATH_INQ:
2440 {
2441 struct ccb_pathinq *cpi = &ccb->cpi;
2442
2443 DPRINTF(sc, UDMASS_SCSI, "%d:%d:%d:XPT_PATH_INQ:.\n",
2444 sc ? cam_sim_path(sc->sc_sim) : -1, ccb->ccb_h.target_id,
2445 ccb->ccb_h.target_lun);
2446
2447 /* host specific information */
2448 cpi->version_num = 1;
2449 cpi->hba_inquiry = 0;
2450 cpi->target_sprt = 0;
2451 cpi->hba_misc = PIM_NO_6_BYTE;
2452 cpi->hba_eng_cnt = 0;
2453 cpi->max_target = UMASS_SCSIID_MAX; /* one target */
2454 cpi->initiator_id = UMASS_SCSIID_HOST;
2455 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2456 strlcpy(cpi->hba_vid, "USB SCSI", HBA_IDLEN);
2457 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
2458 cpi->unit_number = cam_sim_unit(sim);
2459 cpi->bus_id = sc->sc_unit;
2460 cpi->protocol = PROTO_SCSI;
2461 cpi->protocol_version = SCSI_REV_2;
2462 cpi->transport = XPORT_USB;
2463 cpi->transport_version = 0;
2464 if (sc == NULL) {
2465 cpi->base_transfer_speed = 0;
2466 cpi->max_lun = 0;
2467 } else {
2468 if (sc->sc_quirks & FLOPPY_SPEED) {
2469 cpi->base_transfer_speed =
2470 UMASS_FLOPPY_TRANSFER_SPEED;
2471 } else {
2472 switch (usbd_get_speed(sc->sc_udev)) {
2473 case USB_SPEED_SUPER:
2474 cpi->base_transfer_speed =
2475 UMASS_SUPER_TRANSFER_SPEED;
2476 #if 0 /* XXX */
2477 cpi->maxio = MAXPHYS;
2478 #endif
2479 break;
2480 case USB_SPEED_HIGH:
2481 cpi->base_transfer_speed =
2482 UMASS_HIGH_TRANSFER_SPEED;
2483 break;
2484 default:
2485 cpi->base_transfer_speed =
2486 UMASS_FULL_TRANSFER_SPEED;
2487 break;
2488 }
2489 }
2490 cpi->max_lun = sc->sc_maxlun;
2491 }
2492
2493 cpi->ccb_h.status = CAM_REQ_CMP;
2494 xpt_done(ccb);
2495 break;
2496 }
2497 case XPT_RESET_DEV:
2498 {
2499 DPRINTF(sc, UDMASS_SCSI, "%d:%d:%d:XPT_RESET_DEV:.\n",
2500 cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
2501 ccb->ccb_h.target_lun);
2502
2503 umass_reset(sc);
2504
2505 ccb->ccb_h.status = CAM_REQ_CMP;
2506 xpt_done(ccb);
2507 break;
2508 }
2509 case XPT_GET_TRAN_SETTINGS:
2510 {
2511 struct ccb_trans_settings *cts = &ccb->cts;
2512
2513 DPRINTF(sc, UDMASS_SCSI, "%d:%d:%d:XPT_GET_TRAN_SETTINGS:.\n",
2514 cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
2515 ccb->ccb_h.target_lun);
2516
2517 cts->protocol = PROTO_SCSI;
2518 cts->protocol_version = SCSI_REV_2;
2519 cts->transport = XPORT_USB;
2520 cts->transport_version = 0;
2521 cts->xport_specific.valid = 0;
2522 ccb->ccb_h.status = CAM_REQ_CMP;
2523 xpt_done(ccb);
2524 break;
2525 }
2526 case XPT_SET_TRAN_SETTINGS:
2527 {
2528 DPRINTF(sc, UDMASS_SCSI, "%d:%d:%d:XPT_SET_TRAN_SETTINGS:.\n",
2529 cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
2530 ccb->ccb_h.target_lun);
2531
2532 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
2533 xpt_done(ccb);
2534 break;
2535 }
2536 case XPT_CALC_GEOMETRY:
2537 {
2538 cam_calc_geometry(&ccb->ccg, /* extended */ 1);
2539 xpt_done(ccb);
2540 break;
2541 }
2542 case XPT_NOOP:
2543 {
2544 DPRINTF(sc, UDMASS_SCSI, "%d:%d:%d:XPT_NOOP:.\n",
2545 sc ? cam_sim_path(sc->sc_sim) : -1, ccb->ccb_h.target_id,
2546 ccb->ccb_h.target_lun);
2547
2548 ccb->ccb_h.status = CAM_REQ_CMP;
2549 xpt_done(ccb);
2550 break;
2551 }
2552 default:
2553 DPRINTF(sc, UDMASS_SCSI, "%d:%d:%d:func_code 0x%04x: "
2554 "Not implemented\n",
2555 sc ? cam_sim_path(sc->sc_sim) : -1, ccb->ccb_h.target_id,
2556 ccb->ccb_h.target_lun, ccb->ccb_h.func_code);
2557
2558 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
2559 xpt_done(ccb);
2560 break;
2561 }
2562
2563 done:
2564 if (sc) {
2565 lockmgr(&sc->sc_lock, LK_RELEASE);
2566 }
2567 return;
2568 }
2569
2570 static void
2571 umass_cam_poll(struct cam_sim *sim)
2572 {
2573 struct umass_softc *sc = (struct umass_softc *)sim->softc;
2574
2575 if (sc == UMASS_GONE)
2576 return;
2577
2578 DPRINTF(sc, UDMASS_SCSI, "CAM poll\n");
2579
2580 usbd_transfer_poll(sc->sc_xfer, UMASS_T_MAX);
2581 }
2582
2583
2584 /* umass_cam_cb
2585 * finalise a completed CAM command
2586 */
2587
2588 static void
2589 umass_cam_cb(struct umass_softc *sc, union ccb *ccb, uint32_t residue,
2590 uint8_t status)
2591 {
2592 ccb->csio.resid = residue;
2593
2594 switch (status) {
2595 case STATUS_CMD_OK:
2596 ccb->ccb_h.status = CAM_REQ_CMP;
2597 if ((sc->sc_quirks & READ_CAPACITY_OFFBY1) &&
2598 (ccb->ccb_h.func_code == XPT_SCSI_IO) &&
2599 (ccb->csio.cdb_io.cdb_bytes[0] == READ_CAPACITY)) {
2600 struct scsi_read_capacity_data *rcap;
2601 uint32_t maxsector;
2602
2603 rcap = (void *)(ccb->csio.data_ptr);
2604 maxsector = scsi_4btoul(rcap->addr) - 1;
2605 scsi_ulto4b(maxsector, rcap->addr);
2606 }
2607 /*
2608 * We have to add SVPD_UNIT_SERIAL_NUMBER to the list
2609 * of pages supported by the device - otherwise, CAM
2610 * will never ask us for the serial number if the
2611 * device cannot handle that by itself.
2612 */
2613 if (ccb->ccb_h.func_code == XPT_SCSI_IO &&
2614 sc->sc_transfer.cmd_data[0] == INQUIRY &&
2615 (sc->sc_transfer.cmd_data[1] & SI_EVPD) &&
2616 sc->sc_transfer.cmd_data[2] == SVPD_SUPPORTED_PAGE_LIST &&
2617 (usb_get_serial(sc->sc_udev)[0] != '\0')) {
2618 struct ccb_scsiio *csio;
2619 struct scsi_vpd_supported_page_list *page_list;
2620
2621 csio = &ccb->csio;
2622 page_list = (struct scsi_vpd_supported_page_list *)csio->data_ptr;
2623 if (page_list->length + 1 < SVPD_SUPPORTED_PAGES_SIZE) {
2624 page_list->list[page_list->length] = SVPD_UNIT_SERIAL_NUMBER;
2625 page_list->length++;
2626 }
2627 }
2628 xpt_done(ccb);
2629 break;
2630
2631 case STATUS_CMD_UNKNOWN:
2632 case STATUS_CMD_FAILED:
2633
2634 /* fetch sense data */
2635
2636 /* the rest of the command was filled in at attach */
2637 sc->cam_scsi_sense.length = ccb->csio.sense_len;
2638
2639 DPRINTF(sc, UDMASS_SCSI, "Fetching %d bytes of "
2640 "sense data\n", ccb->csio.sense_len);
2641
2642 if (umass_std_transform(sc, ccb, &sc->cam_scsi_sense.opcode,
2643 sizeof(sc->cam_scsi_sense))) {
2644
2645 if ((sc->sc_quirks & FORCE_SHORT_INQUIRY) &&
2646 (sc->sc_transfer.cmd_data[0] == INQUIRY)) {
2647 ccb->csio.sense_len = SHORT_INQUIRY_LENGTH;
2648 }
2649 umass_command_start(sc, DIR_IN, &ccb->csio.sense_data.error_code,
2650 ccb->csio.sense_len, ccb->ccb_h.timeout,
2651 &umass_cam_sense_cb, ccb);
2652 }
2653 break;
2654
2655 default:
2656 /*
2657 * The wire protocol failed and will hopefully have
2658 * recovered. We return an error to CAM and let CAM
2659 * retry the command if necessary.
2660 */
2661 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
2662 xpt_done(ccb);
2663 break;
2664 }
2665 }
2666
2667 /*
2668 * Finalise a completed autosense operation
2669 */
2670 static void
2671 umass_cam_sense_cb(struct umass_softc *sc, union ccb *ccb, uint32_t residue,
2672 uint8_t status)
2673 {
2674 uint8_t *cmd;
2675
2676 switch (status) {
2677 case STATUS_CMD_OK:
2678 case STATUS_CMD_UNKNOWN:
2679 case STATUS_CMD_FAILED:
2680 {
2681 int error, key, asc, ascq;
2682 uint8_t sense_len;
2683
2684 ccb->csio.sense_resid = residue;
2685 sense_len = ccb->csio.sense_len - ccb->csio.sense_resid;
2686 scsi_extract_sense(&ccb->csio.sense_data,
2687 &error,
2688 &key,
2689 &asc, &ascq);
2690 if (ccb->csio.ccb_h.flags & CAM_CDB_POINTER) {
2691 cmd = (uint8_t *)(ccb->csio.cdb_io.cdb_ptr);
2692 } else {
2693 cmd = (uint8_t *)(ccb->csio.cdb_io.cdb_bytes);
2694 }
2695
2696 /*
2697 * Getting sense data always succeeds (apart from wire
2698 * failures):
2699 */
2700 if ((sc->sc_quirks & RS_NO_CLEAR_UA) &&
2701 (cmd[0] == INQUIRY) &&
2702 (key == SSD_KEY_UNIT_ATTENTION)) {
2703 /*
2704 * Ignore unit attention errors in the case where
2705 * the Unit Attention state is not cleared on
2706 * REQUEST SENSE. They will appear again at the next
2707 * command.
2708 */
2709 ccb->ccb_h.status = CAM_REQ_CMP;
2710 } else if (key == SSD_KEY_NO_SENSE) {
2711 /*
2712 * No problem after all (in the case of CBI without
2713 * CCI)
2714 */
2715 ccb->ccb_h.status = CAM_REQ_CMP;
2716 } else if ((sc->sc_quirks & RS_NO_CLEAR_UA) &&
2717 (cmd[0] == READ_CAPACITY) &&
2718 (key == SSD_KEY_UNIT_ATTENTION)) {
2719 /*
2720 * Some devices do not clear the unit attention error
2721 * on request sense. We insert a test unit ready
2722 * command to make sure we clear the unit attention
2723 * condition, then allow the retry to proceed as
2724 * usual.
2725 */
2726
2727 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
2728 | CAM_AUTOSNS_VALID;
2729 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
2730
2731 #if 0
2732 DELAY(300000);
2733 #endif
2734 DPRINTF(sc, UDMASS_SCSI, "Doing a sneaky"
2735 "TEST_UNIT_READY\n");
2736
2737 /* the rest of the command was filled in at attach */
2738
2739 if (umass_std_transform(sc, ccb,
2740 &sc->cam_scsi_test_unit_ready.opcode,
2741 sizeof(sc->cam_scsi_test_unit_ready))) {
2742 umass_command_start(sc, DIR_NONE, NULL, 0,
2743 ccb->ccb_h.timeout,
2744 &umass_cam_quirk_cb, ccb);
2745 }
2746 break;
2747 } else {
2748 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
2749 | CAM_AUTOSNS_VALID;
2750 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
2751 }
2752 xpt_done(ccb);
2753 break;
2754 }
2755 default:
2756 DPRINTF(sc, UDMASS_SCSI, "Autosense failed, "
2757 "status %d\n", status);
2758 ccb->ccb_h.status = CAM_AUTOSENSE_FAIL;
2759 xpt_done(ccb);
2760 }
2761 }
2762
2763 /*
2764 * This completion code just handles the fact that we sent a test-unit-ready
2765 * after having previously failed a READ CAPACITY with CHECK_COND. Even
2766 * though this command succeeded, we have to tell CAM to retry.
2767 */
2768 static void
2769 umass_cam_quirk_cb(struct umass_softc *sc, union ccb *ccb, uint32_t residue,
2770 uint8_t status)
2771 {
2772 DPRINTF(sc, UDMASS_SCSI, "Test unit ready "
2773 "returned status %d\n", status);
2774
2775 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
2776 | CAM_AUTOSNS_VALID;
2777 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
2778 xpt_done(ccb);
2779 }
2780
2781 /*
2782 * SCSI specific functions
2783 */
2784
2785 static uint8_t
2786 umass_scsi_transform(struct umass_softc *sc, uint8_t *cmd_ptr,
2787 uint8_t cmd_len)
2788 {
2789 if ((cmd_len == 0) ||
2790 (cmd_len > sizeof(sc->sc_transfer.cmd_data))) {
2791 DPRINTF(sc, UDMASS_SCSI, "Invalid command "
2792 "length: %d bytes\n", cmd_len);
2793 return (0); /* failure */
2794 }
2795 sc->sc_transfer.cmd_len = cmd_len;
2796
2797 switch (cmd_ptr[0]) {
2798 case TEST_UNIT_READY:
2799 if (sc->sc_quirks & NO_TEST_UNIT_READY) {
2800 DPRINTF(sc, UDMASS_SCSI, "Converted TEST_UNIT_READY "
2801 "to START_UNIT\n");
2802 memset(sc->sc_transfer.cmd_data, 0, cmd_len);
2803 sc->sc_transfer.cmd_data[0] = START_STOP_UNIT;
2804 sc->sc_transfer.cmd_data[4] = SSS_START;
2805 return (1);
2806 }
2807 break;
2808
2809 case INQUIRY:
2810 /*
2811 * some drives wedge when asked for full inquiry
2812 * information.
2813 */
2814 if (sc->sc_quirks & FORCE_SHORT_INQUIRY) {
2815 memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
2816 sc->sc_transfer.cmd_data[4] = SHORT_INQUIRY_LENGTH;
2817 return (1);
2818 }
2819 break;
2820 }
2821
2822 memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
2823 return (1);
2824 }
2825
2826 static uint8_t
2827 umass_rbc_transform(struct umass_softc *sc, uint8_t *cmd_ptr, uint8_t cmd_len)
2828 {
2829 if ((cmd_len == 0) ||
2830 (cmd_len > sizeof(sc->sc_transfer.cmd_data))) {
2831 DPRINTF(sc, UDMASS_SCSI, "Invalid command "
2832 "length: %d bytes\n", cmd_len);
2833 return (0); /* failure */
2834 }
2835 switch (cmd_ptr[0]) {
2836 /* these commands are defined in RBC: */
2837 case READ_10:
2838 case READ_CAPACITY:
2839 case START_STOP_UNIT:
2840 case SYNCHRONIZE_CACHE:
2841 case WRITE_10:
2842 case 0x2f: /* VERIFY_10 is absent from
2843 * scsi_all.h??? */
2844 case INQUIRY:
2845 case MODE_SELECT_10:
2846 case MODE_SENSE_10:
2847 case TEST_UNIT_READY:
2848 case WRITE_BUFFER:
2849 /*
2850 * The following commands are not listed in my copy of the
2851 * RBC specs. CAM however seems to want those, and at least
2852 * the Sony DSC device appears to support those as well
2853 */
2854 case REQUEST_SENSE:
2855 case PREVENT_ALLOW:
2856
2857 memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
2858
2859 if ((sc->sc_quirks & RBC_PAD_TO_12) && (cmd_len < 12)) {
2860 memset(sc->sc_transfer.cmd_data + cmd_len,
2861 0, 12 - cmd_len);
2862 cmd_len = 12;
2863 }
2864 sc->sc_transfer.cmd_len = cmd_len;
2865 return (1); /* sucess */
2866
2867 /* All other commands are not legal in RBC */
2868 default:
2869 DPRINTF(sc, UDMASS_SCSI, "Unsupported RBC "
2870 "command 0x%02x\n", cmd_ptr[0]);
2871 return (0); /* failure */
2872 }
2873 }
2874
2875 static uint8_t
2876 umass_ufi_transform(struct umass_softc *sc, uint8_t *cmd_ptr,
2877 uint8_t cmd_len)
2878 {
2879 if ((cmd_len == 0) ||
2880 (cmd_len > sizeof(sc->sc_transfer.cmd_data))) {
2881 DPRINTF(sc, UDMASS_SCSI, "Invalid command "
2882 "length: %d bytes\n", cmd_len);
2883 return (0); /* failure */
2884 }
2885 /* An UFI command is always 12 bytes in length */
2886 sc->sc_transfer.cmd_len = UFI_COMMAND_LENGTH;
2887
2888 /* Zero the command data */
2889 memset(sc->sc_transfer.cmd_data, 0, UFI_COMMAND_LENGTH);
2890
2891 switch (cmd_ptr[0]) {
2892 /*
2893 * Commands of which the format has been verified. They
2894 * should work. Copy the command into the (zeroed out)
2895 * destination buffer.
2896 */
2897 case TEST_UNIT_READY:
2898 if (sc->sc_quirks & NO_TEST_UNIT_READY) {
2899 /*
2900 * Some devices do not support this command. Start
2901 * Stop Unit should give the same results
2902 */
2903 DPRINTF(sc, UDMASS_UFI, "Converted TEST_UNIT_READY "
2904 "to START_UNIT\n");
2905
2906 sc->sc_transfer.cmd_data[0] = START_STOP_UNIT;
2907 sc->sc_transfer.cmd_data[4] = SSS_START;
2908 return (1);
2909 }
2910 break;
2911
2912 case REZERO_UNIT:
2913 case REQUEST_SENSE:
2914 case FORMAT_UNIT:
2915 case INQUIRY:
2916 case START_STOP_UNIT:
2917 case SEND_DIAGNOSTIC:
2918 case PREVENT_ALLOW:
2919 case READ_CAPACITY:
2920 case READ_10:
2921 case WRITE_10:
2922 case POSITION_TO_ELEMENT: /* SEEK_10 */
2923 case WRITE_AND_VERIFY:
2924 case VERIFY:
2925 case MODE_SELECT_10:
2926 case MODE_SENSE_10:
2927 case READ_12:
2928 case WRITE_12:
2929 case READ_FORMAT_CAPACITIES:
2930 break;
2931
2932 /*
2933 * SYNCHRONIZE_CACHE isn't supported by UFI, nor should it be
2934 * required for UFI devices, so it is appropriate to fake
2935 * success.
2936 */
2937 case SYNCHRONIZE_CACHE:
2938 return (2);
2939
2940 default:
2941 DPRINTF(sc, UDMASS_SCSI, "Unsupported UFI "
2942 "command 0x%02x\n", cmd_ptr[0]);
2943 return (0); /* failure */
2944 }
2945
2946 memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
2947 return (1); /* success */
2948 }
2949
2950 /*
2951 * 8070i (ATAPI) specific functions
2952 */
2953 static uint8_t
2954 umass_atapi_transform(struct umass_softc *sc, uint8_t *cmd_ptr,
2955 uint8_t cmd_len)
2956 {
2957 if ((cmd_len == 0) ||
2958 (cmd_len > sizeof(sc->sc_transfer.cmd_data))) {
2959 DPRINTF(sc, UDMASS_SCSI, "Invalid command "
2960 "length: %d bytes\n", cmd_len);
2961 return (0); /* failure */
2962 }
2963 /* An ATAPI command is always 12 bytes in length. */
2964 sc->sc_transfer.cmd_len = ATAPI_COMMAND_LENGTH;
2965
2966 /* Zero the command data */
2967 memset(sc->sc_transfer.cmd_data, 0, ATAPI_COMMAND_LENGTH);
2968
2969 switch (cmd_ptr[0]) {
2970 /*
2971 * Commands of which the format has been verified. They
2972 * should work. Copy the command into the destination
2973 * buffer.
2974 */
2975 case INQUIRY:
2976 /*
2977 * some drives wedge when asked for full inquiry
2978 * information.
2979 */
2980 if (sc->sc_quirks & FORCE_SHORT_INQUIRY) {
2981 memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
2982
2983 sc->sc_transfer.cmd_data[4] = SHORT_INQUIRY_LENGTH;
2984 return (1);
2985 }
2986 break;
2987
2988 case TEST_UNIT_READY:
2989 if (sc->sc_quirks & NO_TEST_UNIT_READY) {
2990 DPRINTF(sc, UDMASS_SCSI, "Converted TEST_UNIT_READY "
2991 "to START_UNIT\n");
2992 sc->sc_transfer.cmd_data[0] = START_STOP_UNIT;
2993 sc->sc_transfer.cmd_data[4] = SSS_START;
2994 return (1);
2995 }
2996 break;
2997
2998 case REZERO_UNIT:
2999 case REQUEST_SENSE:
3000 case START_STOP_UNIT:
3001 case SEND_DIAGNOSTIC:
3002 case PREVENT_ALLOW:
3003 case READ_CAPACITY:
3004 case READ_10:
3005 case WRITE_10:
3006 case POSITION_TO_ELEMENT: /* SEEK_10 */
3007 case SYNCHRONIZE_CACHE:
3008 case MODE_SELECT_10:
3009 case MODE_SENSE_10:
3010 case READ_BUFFER:
3011 case 0x42: /* READ_SUBCHANNEL */
3012 case 0x43: /* READ_TOC */
3013 case 0x44: /* READ_HEADER */
3014 case 0x47: /* PLAY_MSF (Play Minute/Second/Frame) */
3015 case 0x48: /* PLAY_TRACK */
3016 case 0x49: /* PLAY_TRACK_REL */
3017 case 0x4b: /* PAUSE */
3018 case 0x51: /* READ_DISK_INFO */
3019 case 0x52: /* READ_TRACK_INFO */
3020 case 0x54: /* SEND_OPC */
3021 case 0x59: /* READ_MASTER_CUE */
3022 case 0x5b: /* CLOSE_TR_SESSION */
3023 case 0x5c: /* READ_BUFFER_CAP */
3024 case 0x5d: /* SEND_CUE_SHEET */
3025 case 0xa1: /* BLANK */
3026 case 0xa5: /* PLAY_12 */
3027 case 0xa6: /* EXCHANGE_MEDIUM */
3028 case 0xad: /* READ_DVD_STRUCTURE */
3029 case 0xbb: /* SET_CD_SPEED */
3030 case 0xe5: /* READ_TRACK_INFO_PHILIPS */
3031 break;
3032
3033 case READ_12:
3034 case WRITE_12:
3035 default:
3036 DPRINTF(sc, UDMASS_SCSI, "Unsupported ATAPI "
3037 "command 0x%02x - trying anyway\n",
3038 cmd_ptr[0]);
3039 break;
3040 }
3041
3042 memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
3043 return (1); /* success */
3044 }
3045
3046 static uint8_t
3047 umass_no_transform(struct umass_softc *sc, uint8_t *cmd,
3048 uint8_t cmdlen)
3049 {
3050 return (0); /* failure */
3051 }
3052
3053 static uint8_t
3054 umass_std_transform(struct umass_softc *sc, union ccb *ccb,
3055 uint8_t *cmd, uint8_t cmdlen)
3056 {
3057 uint8_t retval;
3058
3059 retval = (sc->sc_transform) (sc, cmd, cmdlen);
3060
3061 if (retval == 2) {
3062 ccb->ccb_h.status = CAM_REQ_CMP;
3063 xpt_done(ccb);
3064 return (0);
3065 } else if (retval == 0) {
3066 ccb->ccb_h.status = CAM_REQ_INVALID;
3067 xpt_done(ccb);
3068 return (0);
3069 }
3070 /* Command should be executed */
3071 return (1);
3072 }
3073
3074 #ifdef USB_DEBUG
3075 static void
3076 umass_bbb_dump_cbw(struct umass_softc *sc, umass_bbb_cbw_t *cbw)
3077 {
3078 uint8_t *c = cbw->CBWCDB;
3079
3080 uint32_t dlen = UGETDW(cbw->dCBWDataTransferLength);
3081 uint32_t tag = UGETDW(cbw->dCBWTag);
3082
3083 uint8_t clen = cbw->bCDBLength;
3084 uint8_t flags = cbw->bCBWFlags;
3085 uint8_t lun = cbw->bCBWLUN;
3086
3087 DPRINTF(sc, UDMASS_BBB, "CBW %d: cmd = %db "
3088 "(0x%02x%02x%02x%02x%02x%02x%s), "
3089 "data = %db, lun = %d, dir = %s\n",
3090 tag, clen,
3091 c[0], c[1], c[2], c[3], c[4], c[5], (clen > 6 ? "..." : ""),
3092 dlen, lun, (flags == CBWFLAGS_IN ? "in" :
3093 (flags == CBWFLAGS_OUT ? "out" : "<invalid>")));
3094 }
3095
3096 static void
3097 umass_bbb_dump_csw(struct umass_softc *sc, umass_bbb_csw_t *csw)
3098 {
3099 uint32_t sig = UGETDW(csw->dCSWSignature);
3100 uint32_t tag = UGETDW(csw->dCSWTag);
3101 uint32_t res = UGETDW(csw->dCSWDataResidue);
3102 uint8_t status = csw->bCSWStatus;
3103
3104 DPRINTF(sc, UDMASS_BBB, "CSW %d: sig = 0x%08x (%s), tag = 0x%08x, "
3105 "res = %d, status = 0x%02x (%s)\n",
3106 tag, sig, (sig == CSWSIGNATURE ? "valid" : "invalid"),
3107 tag, res,
3108 status, (status == CSWSTATUS_GOOD ? "good" :
3109 (status == CSWSTATUS_FAILED ? "failed" :
3110 (status == CSWSTATUS_PHASE ? "phase" : "<invalid>"))));
3111 }
3112
3113 static void
3114 umass_cbi_dump_cmd(struct umass_softc *sc, void *cmd, uint8_t cmdlen)
3115 {
3116 uint8_t *c = cmd;
3117 uint8_t dir = sc->sc_transfer.dir;
3118
3119 DPRINTF(sc, UDMASS_BBB, "cmd = %db "
3120 "(0x%02x%02x%02x%02x%02x%02x%s), "
3121 "data = %db, dir = %s\n",
3122 cmdlen,
3123 c[0], c[1], c[2], c[3], c[4], c[5], (cmdlen > 6 ? "..." : ""),
3124 sc->sc_transfer.data_len,
3125 (dir == DIR_IN ? "in" :
3126 (dir == DIR_OUT ? "out" :
3127 (dir == DIR_NONE ? "no data phase" : "<invalid>"))));
3128 }
3129
3130 static void
3131 umass_dump_buffer(struct umass_softc *sc, uint8_t *buffer, uint32_t buflen,
3132 uint32_t printlen)
3133 {
3134 uint32_t i, j;
3135 char s1[40];
3136 char s2[40];
3137 char s3[5];
3138
3139 s1[0] = '\0';
3140 s3[0] = '\0';
3141
3142 ksprintf(s2, " buffer=%p, buflen=%d", buffer, buflen);
3143 for (i = 0; (i < buflen) && (i < printlen); i++) {
3144 j = i % 16;
3145 if (j == 0 && i != 0) {
3146 DPRINTF(sc, UDMASS_GEN, "0x %s%s\n",
3147 s1, s2);
3148 s2[0] = '\0';
3149 }
3150 ksprintf(&s1[j * 2], "%02x", buffer[i] & 0xff);
3151 }
3152 if (buflen > printlen)
3153 ksprintf(s3, " ...");
3154 DPRINTF(sc, UDMASS_GEN, "0x %s%s%s\n",
3155 s1, s2, s3);
3156 }
3157
3158 #endif
DragonFly BSD