Lines Matching refs:usblp
146 struct usblp { struct
183 static void usblp_dump(struct usblp *usblp) in usblp_dump() argument
185 struct device *dev = &usblp->intf->dev; in usblp_dump()
188 dev_dbg(dev, "usblp=0x%p\n", usblp); in usblp_dump()
189 dev_dbg(dev, "dev=0x%p\n", usblp->dev); in usblp_dump()
190 dev_dbg(dev, "present=%d\n", usblp->present); in usblp_dump()
191 dev_dbg(dev, "readbuf=0x%p\n", usblp->readbuf); in usblp_dump()
192 dev_dbg(dev, "readcount=%d\n", usblp->readcount); in usblp_dump()
193 dev_dbg(dev, "ifnum=%d\n", usblp->ifnum); in usblp_dump()
196 usblp->protocol[p].alt_setting); in usblp_dump()
198 usblp->protocol[p].epwrite); in usblp_dump()
200 usblp->protocol[p].epread); in usblp_dump()
202 dev_dbg(dev, "current_protocol=%d\n", usblp->current_protocol); in usblp_dump()
203 dev_dbg(dev, "minor=%d\n", usblp->minor); in usblp_dump()
204 dev_dbg(dev, "wstatus=%d\n", usblp->wstatus); in usblp_dump()
205 dev_dbg(dev, "rstatus=%d\n", usblp->rstatus); in usblp_dump()
206 dev_dbg(dev, "quirks=%d\n", usblp->quirks); in usblp_dump()
207 dev_dbg(dev, "used=%d\n", usblp->used); in usblp_dump()
208 dev_dbg(dev, "bidir=%d\n", usblp->bidir); in usblp_dump()
210 usblp->device_id_string ? in usblp_dump()
211 usblp->device_id_string + 2 : in usblp_dump()
248 static int usblp_wwait(struct usblp *usblp, int nonblock);
249 static int usblp_wtest(struct usblp *usblp, int nonblock);
250 static int usblp_rwait_and_lock(struct usblp *usblp, int nonblock);
251 static int usblp_rtest(struct usblp *usblp, int nonblock);
252 static int usblp_submit_read(struct usblp *usblp);
253 static int usblp_select_alts(struct usblp *usblp);
254 static int usblp_set_protocol(struct usblp *usblp, int protocol);
255 static int usblp_cache_device_id_string(struct usblp *usblp);
265 static int usblp_ctrl_msg(struct usblp *usblp, int request, int type, int dir, int recip, int value… in usblp_ctrl_msg() argument
268 int index = usblp->ifnum; in usblp_ctrl_msg()
274 index = (usblp->ifnum<<8)|usblp->protocol[usblp->current_protocol].alt_setting; in usblp_ctrl_msg()
276 retval = usb_control_msg(usblp->dev, in usblp_ctrl_msg()
277 dir ? usb_rcvctrlpipe(usblp->dev, 0) : usb_sndctrlpipe(usblp->dev, 0), in usblp_ctrl_msg()
279 dev_dbg(&usblp->intf->dev, in usblp_ctrl_msg()
285 #define usblp_read_status(usblp, status)\ argument
286 …usblp_ctrl_msg(usblp, USBLP_REQ_GET_STATUS, USB_TYPE_CLASS, USB_DIR_IN, USB_RECIP_INTERFACE, 0, st…
287 #define usblp_get_id(usblp, config, id, maxlen)\ argument
288 …usblp_ctrl_msg(usblp, USBLP_REQ_GET_ID, USB_TYPE_CLASS, USB_DIR_IN, USB_RECIP_INTERFACE, config, i…
289 #define usblp_reset(usblp)\ argument
290 usblp_ctrl_msg(usblp, USBLP_REQ_RESET, USB_TYPE_CLASS, USB_DIR_OUT, USB_RECIP_OTHER, 0, NULL, 0)
292 #define usblp_hp_channel_change_request(usblp, channel, buffer) \ argument
293 …usblp_ctrl_msg(usblp, USBLP_REQ_HP_CHANNEL_CHANGE_REQUEST, USB_TYPE_VENDOR, USB_DIR_IN, USB_RECIP_…
308 struct usblp *usblp = urb->context; in usblp_bulk_read() local
311 if (usblp->present && usblp->used) { in usblp_bulk_read()
315 usblp->minor, status); in usblp_bulk_read()
317 spin_lock(&usblp->lock); in usblp_bulk_read()
319 usblp->rstatus = status; in usblp_bulk_read()
321 usblp->rstatus = urb->actual_length; in usblp_bulk_read()
322 usblp->rcomplete = 1; in usblp_bulk_read()
323 wake_up(&usblp->rwait); in usblp_bulk_read()
324 spin_unlock(&usblp->lock); in usblp_bulk_read()
331 struct usblp *usblp = urb->context; in usblp_bulk_write() local
334 if (usblp->present && usblp->used) { in usblp_bulk_write()
338 usblp->minor, status); in usblp_bulk_write()
340 spin_lock(&usblp->lock); in usblp_bulk_write()
342 usblp->wstatus = status; in usblp_bulk_write()
344 usblp->wstatus = urb->actual_length; in usblp_bulk_write()
345 usblp->no_paper = 0; in usblp_bulk_write()
346 usblp->wcomplete = 1; in usblp_bulk_write()
347 wake_up(&usblp->wwait); in usblp_bulk_write()
348 spin_unlock(&usblp->lock); in usblp_bulk_write()
359 static int usblp_check_status(struct usblp *usblp, int err) in usblp_check_status() argument
364 mutex_lock(&usblp->mut); in usblp_check_status()
365 if ((error = usblp_read_status(usblp, usblp->statusbuf)) < 0) { in usblp_check_status()
366 mutex_unlock(&usblp->mut); in usblp_check_status()
369 usblp->minor, error); in usblp_check_status()
372 status = *usblp->statusbuf; in usblp_check_status()
373 mutex_unlock(&usblp->mut); in usblp_check_status()
384 usblp->minor, usblp_messages[newerr]); in usblp_check_status()
390 static int handle_bidir(struct usblp *usblp) in handle_bidir() argument
392 if (usblp->bidir && usblp->used) { in handle_bidir()
393 if (usblp_submit_read(usblp) < 0) in handle_bidir()
406 struct usblp *usblp; in usblp_open() local
419 usblp = usb_get_intfdata(intf); in usblp_open()
420 if (!usblp || !usblp->dev || !usblp->present) in usblp_open()
424 if (usblp->used) in usblp_open()
436 usblp->used = 1; in usblp_open()
437 file->private_data = usblp; in usblp_open()
439 usblp->wcomplete = 1; /* we begin writeable */ in usblp_open()
440 usblp->wstatus = 0; in usblp_open()
441 usblp->rcomplete = 0; in usblp_open()
443 if (handle_bidir(usblp) < 0) { in usblp_open()
445 usblp->used = 0; in usblp_open()
454 static void usblp_cleanup(struct usblp *usblp) in usblp_cleanup() argument
456 printk(KERN_INFO "usblp%d: removed\n", usblp->minor); in usblp_cleanup()
458 kfree(usblp->readbuf); in usblp_cleanup()
459 kfree(usblp->device_id_string); in usblp_cleanup()
460 kfree(usblp->statusbuf); in usblp_cleanup()
461 kfree(usblp); in usblp_cleanup()
464 static void usblp_unlink_urbs(struct usblp *usblp) in usblp_unlink_urbs() argument
466 usb_kill_anchored_urbs(&usblp->urbs); in usblp_unlink_urbs()
471 struct usblp *usblp = file->private_data; in usblp_release() local
473 usblp->flags &= ~LP_ABORT; in usblp_release()
476 usblp->used = 0; in usblp_release()
477 if (usblp->present) { in usblp_release()
478 usblp_unlink_urbs(usblp); in usblp_release()
479 usb_autopm_put_interface(usblp->intf); in usblp_release()
481 usblp_cleanup(usblp); in usblp_release()
492 struct usblp *usblp = file->private_data; in usblp_poll() local
494 poll_wait(file, &usblp->rwait, wait); in usblp_poll()
495 poll_wait(file, &usblp->wwait, wait); in usblp_poll()
496 spin_lock_irqsave(&usblp->lock, flags); in usblp_poll()
497 ret = ((usblp->bidir && usblp->rcomplete) ? POLLIN | POLLRDNORM : 0) | in usblp_poll()
498 ((usblp->no_paper || usblp->wcomplete) ? POLLOUT | POLLWRNORM : 0); in usblp_poll()
499 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_poll()
505 struct usblp *usblp = file->private_data; in usblp_ioctl() local
512 mutex_lock(&usblp->mut); in usblp_ioctl()
513 if (!usblp->present) { in usblp_ioctl()
518 dev_dbg(&usblp->intf->dev, in usblp_ioctl()
532 length = usblp_cache_device_id_string(usblp); in usblp_ioctl()
541 usblp->device_id_string, in usblp_ioctl()
556 twoints[0] = usblp->current_protocol; in usblp_ioctl()
560 if (usblp->protocol[i].alt_setting >= 0) in usblp_ioctl()
581 usblp_dump(usblp); in usblp_ioctl()
586 usblp_unlink_urbs(usblp); in usblp_ioctl()
587 retval = usblp_set_protocol(usblp, arg); in usblp_ioctl()
589 usblp_set_protocol(usblp, in usblp_ioctl()
590 usblp->current_protocol); in usblp_ioctl()
596 le16_to_cpu(usblp->dev->descriptor.idVendor) != 0x03F0 || in usblp_ioctl()
597 usblp->quirks & USBLP_QUIRK_BIDIR) { in usblp_ioctl()
602 err = usblp_hp_channel_change_request(usblp, in usblp_ioctl()
605 dev_err(&usblp->dev->dev, in usblp_ioctl()
608 usblp->minor, err); in usblp_ioctl()
613 dev_dbg(&usblp->intf->dev, in usblp_ioctl()
615 usblp->minor, arg, newChannel); in usblp_ioctl()
625 twoints[0] = usblp->dev->bus->busnum; in usblp_ioctl()
626 twoints[1] = usblp->dev->devnum; in usblp_ioctl()
634 dev_dbg(&usblp->intf->dev, in usblp_ioctl()
636 usblp->minor, twoints[0], twoints[1]); in usblp_ioctl()
646 twoints[0] = le16_to_cpu(usblp->dev->descriptor.idVendor); in usblp_ioctl()
647 twoints[1] = le16_to_cpu(usblp->dev->descriptor.idProduct); in usblp_ioctl()
655 dev_dbg(&usblp->intf->dev, in usblp_ioctl()
657 usblp->minor, twoints[0], twoints[1]); in usblp_ioctl()
665 retval = usblp_reset(usblp); in usblp_ioctl()
674 retval = usblp_read_status(usblp, usblp->statusbuf); in usblp_ioctl()
678 usblp->minor, retval); in usblp_ioctl()
682 status = *usblp->statusbuf; in usblp_ioctl()
689 usblp->flags |= LP_ABORT; in usblp_ioctl()
691 usblp->flags &= ~LP_ABORT; in usblp_ioctl()
699 mutex_unlock(&usblp->mut); in usblp_ioctl()
703 static struct urb *usblp_new_writeurb(struct usblp *usblp, int transfer_length) in usblp_new_writeurb() argument
717 usb_fill_bulk_urb(urb, usblp->dev, in usblp_new_writeurb()
718 usb_sndbulkpipe(usblp->dev, in usblp_new_writeurb()
719 usblp->protocol[usblp->current_protocol].epwrite->bEndpointAddress), in usblp_new_writeurb()
720 writebuf, transfer_length, usblp_bulk_write, usblp); in usblp_new_writeurb()
728 struct usblp *usblp = file->private_data; in usblp_write() local
734 if (mutex_lock_interruptible(&usblp->wmut)) { in usblp_write()
738 if ((rv = usblp_wwait(usblp, !!(file->f_flags & O_NONBLOCK))) < 0) in usblp_write()
749 writeurb = usblp_new_writeurb(usblp, transfer_length); in usblp_write()
752 usb_anchor_urb(writeurb, &usblp->urbs); in usblp_write()
760 spin_lock_irq(&usblp->lock); in usblp_write()
761 usblp->wcomplete = 0; in usblp_write()
762 spin_unlock_irq(&usblp->lock); in usblp_write()
764 usblp->wstatus = 0; in usblp_write()
765 spin_lock_irq(&usblp->lock); in usblp_write()
766 usblp->no_paper = 0; in usblp_write()
767 usblp->wcomplete = 1; in usblp_write()
768 wake_up(&usblp->wwait); in usblp_write()
769 spin_unlock_irq(&usblp->lock); in usblp_write()
778 rv = usblp_wwait(usblp, !!(file->f_flags&O_NONBLOCK)); in usblp_write()
785 spin_lock_irq(&usblp->lock); in usblp_write()
786 usblp->no_paper = 1; /* Mark for poll(2) */ in usblp_write()
787 spin_unlock_irq(&usblp->lock); in usblp_write()
794 if (usblp->wstatus < 0) { in usblp_write()
802 writecount += usblp->wstatus; in usblp_write()
805 mutex_unlock(&usblp->wmut); in usblp_write()
815 mutex_unlock(&usblp->wmut); in usblp_write()
827 struct usblp *usblp = file->private_data; in usblp_read() local
832 if (!usblp->bidir) in usblp_read()
835 rv = usblp_rwait_and_lock(usblp, !!(file->f_flags & O_NONBLOCK)); in usblp_read()
839 if ((avail = usblp->rstatus) < 0) { in usblp_read()
841 usblp->minor, (int)avail); in usblp_read()
842 usblp_submit_read(usblp); in usblp_read()
847 count = len < avail - usblp->readcount ? len : avail - usblp->readcount; in usblp_read()
849 copy_to_user(buffer, usblp->readbuf + usblp->readcount, count)) { in usblp_read()
854 if ((usblp->readcount += count) == avail) { in usblp_read()
855 if (usblp_submit_read(usblp) < 0) { in usblp_read()
864 mutex_unlock(&usblp->mut); in usblp_read()
879 static int usblp_wwait(struct usblp *usblp, int nonblock) in usblp_wwait() argument
885 add_wait_queue(&usblp->wwait, &waita); in usblp_wwait()
887 if (mutex_lock_interruptible(&usblp->mut)) { in usblp_wwait()
892 rc = usblp_wtest(usblp, nonblock); in usblp_wwait()
893 mutex_unlock(&usblp->mut); in usblp_wwait()
898 if (usblp->flags & LP_ABORT) { in usblp_wwait()
899 err = usblp_check_status(usblp, err); in usblp_wwait()
906 mutex_lock(&usblp->mut); in usblp_wwait()
907 usblp_read_status(usblp, usblp->statusbuf); in usblp_wwait()
908 mutex_unlock(&usblp->mut); in usblp_wwait()
913 remove_wait_queue(&usblp->wwait, &waita); in usblp_wwait()
917 static int usblp_wtest(struct usblp *usblp, int nonblock) in usblp_wtest() argument
921 if (!usblp->present) in usblp_wtest()
925 spin_lock_irqsave(&usblp->lock, flags); in usblp_wtest()
926 if (usblp->wcomplete) { in usblp_wtest()
927 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_wtest()
930 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_wtest()
943 static int usblp_rwait_and_lock(struct usblp *usblp, int nonblock) in usblp_rwait_and_lock() argument
948 add_wait_queue(&usblp->rwait, &waita); in usblp_rwait_and_lock()
950 if (mutex_lock_interruptible(&usblp->mut)) { in usblp_rwait_and_lock()
955 if ((rc = usblp_rtest(usblp, nonblock)) < 0) { in usblp_rwait_and_lock()
956 mutex_unlock(&usblp->mut); in usblp_rwait_and_lock()
961 mutex_unlock(&usblp->mut); in usblp_rwait_and_lock()
965 remove_wait_queue(&usblp->rwait, &waita); in usblp_rwait_and_lock()
969 static int usblp_rtest(struct usblp *usblp, int nonblock) in usblp_rtest() argument
973 if (!usblp->present) in usblp_rtest()
977 spin_lock_irqsave(&usblp->lock, flags); in usblp_rtest()
978 if (usblp->rcomplete) { in usblp_rtest()
979 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_rtest()
982 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_rtest()
991 static int usblp_submit_read(struct usblp *usblp) in usblp_submit_read() argument
1002 usb_fill_bulk_urb(urb, usblp->dev, in usblp_submit_read()
1003 usb_rcvbulkpipe(usblp->dev, in usblp_submit_read()
1004 usblp->protocol[usblp->current_protocol].epread->bEndpointAddress), in usblp_submit_read()
1005 usblp->readbuf, USBLP_BUF_SIZE_IN, in usblp_submit_read()
1006 usblp_bulk_read, usblp); in usblp_submit_read()
1007 usb_anchor_urb(urb, &usblp->urbs); in usblp_submit_read()
1009 spin_lock_irqsave(&usblp->lock, flags); in usblp_submit_read()
1010 usblp->readcount = 0; /* XXX Why here? */ in usblp_submit_read()
1011 usblp->rcomplete = 0; in usblp_submit_read()
1012 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_submit_read()
1014 dev_dbg(&usblp->intf->dev, "error submitting urb (%d)\n", rc); in usblp_submit_read()
1015 spin_lock_irqsave(&usblp->lock, flags); in usblp_submit_read()
1016 usblp->rstatus = rc; in usblp_submit_read()
1017 usblp->rcomplete = 1; in usblp_submit_read()
1018 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_submit_read()
1087 struct usblp *usblp = usb_get_intfdata(intf); in usblp_show_ieee1284_id() local
1089 if (usblp->device_id_string[0] == 0 && in usblp_show_ieee1284_id()
1090 usblp->device_id_string[1] == 0) in usblp_show_ieee1284_id()
1093 return sprintf(buf, "%s", usblp->device_id_string+2); in usblp_show_ieee1284_id()
1102 struct usblp *usblp; in usblp_probe() local
1108 usblp = kzalloc(sizeof(struct usblp), GFP_KERNEL); in usblp_probe()
1109 if (!usblp) { in usblp_probe()
1113 usblp->dev = dev; in usblp_probe()
1114 mutex_init(&usblp->wmut); in usblp_probe()
1115 mutex_init(&usblp->mut); in usblp_probe()
1116 spin_lock_init(&usblp->lock); in usblp_probe()
1117 init_waitqueue_head(&usblp->rwait); in usblp_probe()
1118 init_waitqueue_head(&usblp->wwait); in usblp_probe()
1119 init_usb_anchor(&usblp->urbs); in usblp_probe()
1120 usblp->ifnum = intf->cur_altsetting->desc.bInterfaceNumber; in usblp_probe()
1121 usblp->intf = intf; in usblp_probe()
1126 if (!(usblp->device_id_string = kmalloc(USBLP_DEVICE_ID_SIZE, GFP_KERNEL))) { in usblp_probe()
1136 if (!(usblp->readbuf = kmalloc(USBLP_BUF_SIZE_IN, GFP_KERNEL))) { in usblp_probe()
1142 usblp->statusbuf = kmalloc(STATUS_BUF_SIZE, GFP_KERNEL); in usblp_probe()
1143 if (!usblp->statusbuf) { in usblp_probe()
1149 usblp->quirks = usblp_quirks( in usblp_probe()
1154 protocol = usblp_select_alts(usblp); in usblp_probe()
1165 if (usblp_set_protocol(usblp, protocol) < 0) { in usblp_probe()
1171 usblp_cache_device_id_string(usblp); in usblp_probe()
1177 usblp_check_status(usblp, 0); in usblp_probe()
1180 usb_set_intfdata(intf, usblp); in usblp_probe()
1182 usblp->present = 1; in usblp_probe()
1191 usblp->minor = intf->minor; in usblp_probe()
1194 usblp->minor, usblp->bidir ? "Bi" : "Uni", dev->devnum, in usblp_probe()
1195 usblp->ifnum, in usblp_probe()
1196 usblp->protocol[usblp->current_protocol].alt_setting, in usblp_probe()
1197 usblp->current_protocol, in usblp_probe()
1198 le16_to_cpu(usblp->dev->descriptor.idVendor), in usblp_probe()
1199 le16_to_cpu(usblp->dev->descriptor.idProduct)); in usblp_probe()
1207 kfree(usblp->readbuf); in usblp_probe()
1208 kfree(usblp->statusbuf); in usblp_probe()
1209 kfree(usblp->device_id_string); in usblp_probe()
1210 kfree(usblp); in usblp_probe()
1238 static int usblp_select_alts(struct usblp *usblp) in usblp_select_alts() argument
1245 if_alt = usblp->intf; in usblp_select_alts()
1248 usblp->protocol[p].alt_setting = -1; in usblp_select_alts()
1256 if (!(usblp->quirks & USBLP_QUIRK_BAD_CLASS)) in usblp_select_alts()
1287 } else if (usblp->quirks & USBLP_QUIRK_BIDIR) { in usblp_select_alts()
1290 usblp->minor); in usblp_select_alts()
1294 usblp->protocol[ifd->desc.bInterfaceProtocol].alt_setting = in usblp_select_alts()
1296 usblp->protocol[ifd->desc.bInterfaceProtocol].epwrite = epwrite; in usblp_select_alts()
1297 usblp->protocol[ifd->desc.bInterfaceProtocol].epread = epread; in usblp_select_alts()
1303 usblp->protocol[proto_bias].alt_setting != -1) in usblp_select_alts()
1307 if (usblp->protocol[2].alt_setting != -1) in usblp_select_alts()
1309 if (usblp->protocol[1].alt_setting != -1) in usblp_select_alts()
1311 if (usblp->protocol[3].alt_setting != -1) in usblp_select_alts()
1318 static int usblp_set_protocol(struct usblp *usblp, int protocol) in usblp_set_protocol() argument
1325 alts = usblp->protocol[protocol].alt_setting; in usblp_set_protocol()
1328 r = usb_set_interface(usblp->dev, usblp->ifnum, alts); in usblp_set_protocol()
1331 alts, usblp->ifnum); in usblp_set_protocol()
1335 usblp->bidir = (usblp->protocol[protocol].epread != NULL); in usblp_set_protocol()
1336 usblp->current_protocol = protocol; in usblp_set_protocol()
1337 dev_dbg(&usblp->intf->dev, "usblp%d set protocol %d\n", in usblp_set_protocol()
1338 usblp->minor, protocol); in usblp_set_protocol()
1345 static int usblp_cache_device_id_string(struct usblp *usblp) in usblp_cache_device_id_string() argument
1349 err = usblp_get_id(usblp, 0, usblp->device_id_string, USBLP_DEVICE_ID_SIZE - 1); in usblp_cache_device_id_string()
1351 dev_dbg(&usblp->intf->dev, in usblp_cache_device_id_string()
1353 usblp->minor, err); in usblp_cache_device_id_string()
1354 usblp->device_id_string[0] = usblp->device_id_string[1] = '\0'; in usblp_cache_device_id_string()
1361 length = be16_to_cpu(*((__be16 *)usblp->device_id_string)); in usblp_cache_device_id_string()
1366 usblp->device_id_string[length] = '\0'; in usblp_cache_device_id_string()
1368 dev_dbg(&usblp->intf->dev, "usblp%d Device ID string [len=%d]=\"%s\"\n", in usblp_cache_device_id_string()
1369 usblp->minor, length, &usblp->device_id_string[2]); in usblp_cache_device_id_string()
1376 struct usblp *usblp = usb_get_intfdata(intf); in usblp_disconnect() local
1380 if (!usblp || !usblp->dev) { in usblp_disconnect()
1388 mutex_lock(&usblp->mut); in usblp_disconnect()
1389 usblp->present = 0; in usblp_disconnect()
1390 wake_up(&usblp->wwait); in usblp_disconnect()
1391 wake_up(&usblp->rwait); in usblp_disconnect()
1394 usblp_unlink_urbs(usblp); in usblp_disconnect()
1395 mutex_unlock(&usblp->mut); in usblp_disconnect()
1397 if (!usblp->used) in usblp_disconnect()
1398 usblp_cleanup(usblp); in usblp_disconnect()
1404 struct usblp *usblp = usb_get_intfdata(intf); in usblp_suspend() local
1406 usblp_unlink_urbs(usblp); in usblp_suspend()
1409 wake_up(&usblp->wwait); in usblp_suspend()
1410 wake_up(&usblp->rwait); in usblp_suspend()
1418 struct usblp *usblp = usb_get_intfdata(intf); in usblp_resume() local
1421 r = handle_bidir(usblp); in usblp_resume()