Lines Matching refs:usblp
137 struct usblp { struct
172 static void usblp_dump(struct usblp *usblp) in usblp_dump() argument
174 struct device *dev = &usblp->intf->dev; in usblp_dump()
177 dev_dbg(dev, "usblp=0x%p\n", usblp); in usblp_dump()
178 dev_dbg(dev, "dev=0x%p\n", usblp->dev); in usblp_dump()
179 dev_dbg(dev, "present=%d\n", usblp->present); in usblp_dump()
180 dev_dbg(dev, "readbuf=0x%p\n", usblp->readbuf); in usblp_dump()
181 dev_dbg(dev, "readcount=%d\n", usblp->readcount); in usblp_dump()
182 dev_dbg(dev, "ifnum=%d\n", usblp->ifnum); in usblp_dump()
185 usblp->protocol[p].alt_setting); in usblp_dump()
187 usblp->protocol[p].epwrite); in usblp_dump()
189 usblp->protocol[p].epread); in usblp_dump()
191 dev_dbg(dev, "current_protocol=%d\n", usblp->current_protocol); in usblp_dump()
192 dev_dbg(dev, "minor=%d\n", usblp->minor); in usblp_dump()
193 dev_dbg(dev, "wstatus=%d\n", usblp->wstatus); in usblp_dump()
194 dev_dbg(dev, "rstatus=%d\n", usblp->rstatus); in usblp_dump()
195 dev_dbg(dev, "quirks=%d\n", usblp->quirks); in usblp_dump()
196 dev_dbg(dev, "used=%d\n", usblp->used); in usblp_dump()
197 dev_dbg(dev, "bidir=%d\n", usblp->bidir); in usblp_dump()
199 usblp->device_id_string ? in usblp_dump()
200 usblp->device_id_string + 2 : in usblp_dump()
237 static int usblp_wwait(struct usblp *usblp, int nonblock);
238 static int usblp_wtest(struct usblp *usblp, int nonblock);
239 static int usblp_rwait_and_lock(struct usblp *usblp, int nonblock);
240 static int usblp_rtest(struct usblp *usblp, int nonblock);
241 static int usblp_submit_read(struct usblp *usblp);
242 static int usblp_select_alts(struct usblp *usblp);
243 static int usblp_set_protocol(struct usblp *usblp, int protocol);
244 static int usblp_cache_device_id_string(struct usblp *usblp);
254 static int usblp_ctrl_msg(struct usblp *usblp, int request, int type, int dir, int recip, int value… in usblp_ctrl_msg() argument
257 int index = usblp->ifnum; in usblp_ctrl_msg()
263 index = (usblp->ifnum<<8)|usblp->protocol[usblp->current_protocol].alt_setting; in usblp_ctrl_msg()
265 retval = usb_control_msg(usblp->dev, in usblp_ctrl_msg()
266 dir ? usb_rcvctrlpipe(usblp->dev, 0) : usb_sndctrlpipe(usblp->dev, 0), in usblp_ctrl_msg()
268 dev_dbg(&usblp->intf->dev, in usblp_ctrl_msg()
274 #define usblp_read_status(usblp, status)\ argument
275 …usblp_ctrl_msg(usblp, USBLP_REQ_GET_STATUS, USB_TYPE_CLASS, USB_DIR_IN, USB_RECIP_INTERFACE, 0, st…
276 #define usblp_get_id(usblp, config, id, maxlen)\ argument
277 …usblp_ctrl_msg(usblp, USBLP_REQ_GET_ID, USB_TYPE_CLASS, USB_DIR_IN, USB_RECIP_INTERFACE, config, i…
278 #define usblp_reset(usblp)\ argument
279 usblp_ctrl_msg(usblp, USBLP_REQ_RESET, USB_TYPE_CLASS, USB_DIR_OUT, USB_RECIP_OTHER, 0, NULL, 0)
281 #define usblp_hp_channel_change_request(usblp, channel, buffer) \ argument
282 …usblp_ctrl_msg(usblp, USBLP_REQ_HP_CHANNEL_CHANGE_REQUEST, USB_TYPE_VENDOR, USB_DIR_IN, USB_RECIP_…
297 struct usblp *usblp = urb->context; in usblp_bulk_read() local
300 if (usblp->present && usblp->used) { in usblp_bulk_read()
304 usblp->minor, status); in usblp_bulk_read()
306 spin_lock(&usblp->lock); in usblp_bulk_read()
308 usblp->rstatus = status; in usblp_bulk_read()
310 usblp->rstatus = urb->actual_length; in usblp_bulk_read()
311 usblp->rcomplete = 1; in usblp_bulk_read()
312 wake_up(&usblp->rwait); in usblp_bulk_read()
313 spin_unlock(&usblp->lock); in usblp_bulk_read()
320 struct usblp *usblp = urb->context; in usblp_bulk_write() local
323 if (usblp->present && usblp->used) { in usblp_bulk_write()
327 usblp->minor, status); in usblp_bulk_write()
329 spin_lock(&usblp->lock); in usblp_bulk_write()
331 usblp->wstatus = status; in usblp_bulk_write()
333 usblp->wstatus = urb->actual_length; in usblp_bulk_write()
334 usblp->no_paper = 0; in usblp_bulk_write()
335 usblp->wcomplete = 1; in usblp_bulk_write()
336 wake_up(&usblp->wwait); in usblp_bulk_write()
337 spin_unlock(&usblp->lock); in usblp_bulk_write()
348 static int usblp_check_status(struct usblp *usblp, int err) in usblp_check_status() argument
353 mutex_lock(&usblp->mut); in usblp_check_status()
354 if ((error = usblp_read_status(usblp, usblp->statusbuf)) < 0) { in usblp_check_status()
355 mutex_unlock(&usblp->mut); in usblp_check_status()
358 usblp->minor, error); in usblp_check_status()
361 status = *usblp->statusbuf; in usblp_check_status()
362 mutex_unlock(&usblp->mut); in usblp_check_status()
373 usblp->minor, usblp_messages[newerr]); in usblp_check_status()
379 static int handle_bidir(struct usblp *usblp) in handle_bidir() argument
381 if (usblp->bidir && usblp->used) { in handle_bidir()
382 if (usblp_submit_read(usblp) < 0) in handle_bidir()
395 struct usblp *usblp; in usblp_open() local
408 usblp = usb_get_intfdata(intf); in usblp_open()
409 if (!usblp || !usblp->dev || !usblp->present) in usblp_open()
413 if (usblp->used) in usblp_open()
425 usblp->used = 1; in usblp_open()
426 file->private_data = usblp; in usblp_open()
428 usblp->wcomplete = 1; /* we begin writeable */ in usblp_open()
429 usblp->wstatus = 0; in usblp_open()
430 usblp->rcomplete = 0; in usblp_open()
432 if (handle_bidir(usblp) < 0) { in usblp_open()
434 usblp->used = 0; in usblp_open()
443 static void usblp_cleanup(struct usblp *usblp) in usblp_cleanup() argument
445 printk(KERN_INFO "usblp%d: removed\n", usblp->minor); in usblp_cleanup()
447 kfree(usblp->readbuf); in usblp_cleanup()
448 kfree(usblp->device_id_string); in usblp_cleanup()
449 kfree(usblp->statusbuf); in usblp_cleanup()
450 kfree(usblp); in usblp_cleanup()
453 static void usblp_unlink_urbs(struct usblp *usblp) in usblp_unlink_urbs() argument
455 usb_kill_anchored_urbs(&usblp->urbs); in usblp_unlink_urbs()
460 struct usblp *usblp = file->private_data; in usblp_release() local
462 usblp->flags &= ~LP_ABORT; in usblp_release()
465 usblp->used = 0; in usblp_release()
466 if (usblp->present) { in usblp_release()
467 usblp_unlink_urbs(usblp); in usblp_release()
468 usb_autopm_put_interface(usblp->intf); in usblp_release()
470 usblp_cleanup(usblp); in usblp_release()
481 struct usblp *usblp = file->private_data; in usblp_poll() local
483 poll_wait(file, &usblp->rwait, wait); in usblp_poll()
484 poll_wait(file, &usblp->wwait, wait); in usblp_poll()
485 spin_lock_irqsave(&usblp->lock, flags); in usblp_poll()
486 ret = ((usblp->bidir && usblp->rcomplete) ? POLLIN | POLLRDNORM : 0) | in usblp_poll()
487 ((usblp->no_paper || usblp->wcomplete) ? POLLOUT | POLLWRNORM : 0); in usblp_poll()
488 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_poll()
494 struct usblp *usblp = file->private_data; in usblp_ioctl() local
501 mutex_lock(&usblp->mut); in usblp_ioctl()
502 if (!usblp->present) { in usblp_ioctl()
507 dev_dbg(&usblp->intf->dev, in usblp_ioctl()
521 length = usblp_cache_device_id_string(usblp); in usblp_ioctl()
530 usblp->device_id_string, in usblp_ioctl()
545 twoints[0] = usblp->current_protocol; in usblp_ioctl()
549 if (usblp->protocol[i].alt_setting >= 0) in usblp_ioctl()
570 usblp_dump(usblp); in usblp_ioctl()
575 usblp_unlink_urbs(usblp); in usblp_ioctl()
576 retval = usblp_set_protocol(usblp, arg); in usblp_ioctl()
578 usblp_set_protocol(usblp, in usblp_ioctl()
579 usblp->current_protocol); in usblp_ioctl()
585 le16_to_cpu(usblp->dev->descriptor.idVendor) != 0x03F0 || in usblp_ioctl()
586 usblp->quirks & USBLP_QUIRK_BIDIR) { in usblp_ioctl()
591 err = usblp_hp_channel_change_request(usblp, in usblp_ioctl()
594 dev_err(&usblp->dev->dev, in usblp_ioctl()
597 usblp->minor, err); in usblp_ioctl()
602 dev_dbg(&usblp->intf->dev, in usblp_ioctl()
604 usblp->minor, arg, newChannel); in usblp_ioctl()
614 twoints[0] = usblp->dev->bus->busnum; in usblp_ioctl()
615 twoints[1] = usblp->dev->devnum; in usblp_ioctl()
623 dev_dbg(&usblp->intf->dev, in usblp_ioctl()
625 usblp->minor, twoints[0], twoints[1]); in usblp_ioctl()
635 twoints[0] = le16_to_cpu(usblp->dev->descriptor.idVendor); in usblp_ioctl()
636 twoints[1] = le16_to_cpu(usblp->dev->descriptor.idProduct); in usblp_ioctl()
644 dev_dbg(&usblp->intf->dev, in usblp_ioctl()
646 usblp->minor, twoints[0], twoints[1]); in usblp_ioctl()
654 retval = usblp_reset(usblp); in usblp_ioctl()
663 if ((retval = usblp_read_status(usblp, usblp->statusbuf))) { in usblp_ioctl()
666 usblp->minor, retval); in usblp_ioctl()
670 status = *usblp->statusbuf; in usblp_ioctl()
677 usblp->flags |= LP_ABORT; in usblp_ioctl()
679 usblp->flags &= ~LP_ABORT; in usblp_ioctl()
687 mutex_unlock(&usblp->mut); in usblp_ioctl()
691 static struct urb *usblp_new_writeurb(struct usblp *usblp, int transfer_length) in usblp_new_writeurb() argument
703 usb_fill_bulk_urb(urb, usblp->dev, in usblp_new_writeurb()
704 usb_sndbulkpipe(usblp->dev, in usblp_new_writeurb()
705 usblp->protocol[usblp->current_protocol].epwrite->bEndpointAddress), in usblp_new_writeurb()
706 writebuf, transfer_length, usblp_bulk_write, usblp); in usblp_new_writeurb()
714 struct usblp *usblp = file->private_data; in usblp_write() local
720 if (mutex_lock_interruptible(&usblp->wmut)) { in usblp_write()
724 if ((rv = usblp_wwait(usblp, !!(file->f_flags & O_NONBLOCK))) < 0) in usblp_write()
735 if ((writeurb = usblp_new_writeurb(usblp, transfer_length)) == NULL) in usblp_write()
737 usb_anchor_urb(writeurb, &usblp->urbs); in usblp_write()
745 spin_lock_irq(&usblp->lock); in usblp_write()
746 usblp->wcomplete = 0; in usblp_write()
747 spin_unlock_irq(&usblp->lock); in usblp_write()
749 usblp->wstatus = 0; in usblp_write()
750 spin_lock_irq(&usblp->lock); in usblp_write()
751 usblp->no_paper = 0; in usblp_write()
752 usblp->wcomplete = 1; in usblp_write()
753 wake_up(&usblp->wwait); in usblp_write()
754 spin_unlock_irq(&usblp->lock); in usblp_write()
763 rv = usblp_wwait(usblp, !!(file->f_flags&O_NONBLOCK)); in usblp_write()
770 spin_lock_irq(&usblp->lock); in usblp_write()
771 usblp->no_paper = 1; /* Mark for poll(2) */ in usblp_write()
772 spin_unlock_irq(&usblp->lock); in usblp_write()
779 if (usblp->wstatus < 0) { in usblp_write()
787 writecount += usblp->wstatus; in usblp_write()
790 mutex_unlock(&usblp->wmut); in usblp_write()
800 mutex_unlock(&usblp->wmut); in usblp_write()
812 struct usblp *usblp = file->private_data; in usblp_read() local
817 if (!usblp->bidir) in usblp_read()
820 rv = usblp_rwait_and_lock(usblp, !!(file->f_flags & O_NONBLOCK)); in usblp_read()
824 if ((avail = usblp->rstatus) < 0) { in usblp_read()
826 usblp->minor, (int)avail); in usblp_read()
827 usblp_submit_read(usblp); in usblp_read()
832 count = len < avail - usblp->readcount ? len : avail - usblp->readcount; in usblp_read()
834 copy_to_user(buffer, usblp->readbuf + usblp->readcount, count)) { in usblp_read()
839 if ((usblp->readcount += count) == avail) { in usblp_read()
840 if (usblp_submit_read(usblp) < 0) { in usblp_read()
849 mutex_unlock(&usblp->mut); in usblp_read()
864 static int usblp_wwait(struct usblp *usblp, int nonblock) in usblp_wwait() argument
870 add_wait_queue(&usblp->wwait, &waita); in usblp_wwait()
872 if (mutex_lock_interruptible(&usblp->mut)) { in usblp_wwait()
877 rc = usblp_wtest(usblp, nonblock); in usblp_wwait()
878 mutex_unlock(&usblp->mut); in usblp_wwait()
883 if (usblp->flags & LP_ABORT) { in usblp_wwait()
884 err = usblp_check_status(usblp, err); in usblp_wwait()
891 mutex_lock(&usblp->mut); in usblp_wwait()
892 usblp_read_status(usblp, usblp->statusbuf); in usblp_wwait()
893 mutex_unlock(&usblp->mut); in usblp_wwait()
898 remove_wait_queue(&usblp->wwait, &waita); in usblp_wwait()
902 static int usblp_wtest(struct usblp *usblp, int nonblock) in usblp_wtest() argument
906 if (!usblp->present) in usblp_wtest()
910 spin_lock_irqsave(&usblp->lock, flags); in usblp_wtest()
911 if (usblp->wcomplete) { in usblp_wtest()
912 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_wtest()
915 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_wtest()
928 static int usblp_rwait_and_lock(struct usblp *usblp, int nonblock) in usblp_rwait_and_lock() argument
933 add_wait_queue(&usblp->rwait, &waita); in usblp_rwait_and_lock()
935 if (mutex_lock_interruptible(&usblp->mut)) { in usblp_rwait_and_lock()
940 if ((rc = usblp_rtest(usblp, nonblock)) < 0) { in usblp_rwait_and_lock()
941 mutex_unlock(&usblp->mut); in usblp_rwait_and_lock()
946 mutex_unlock(&usblp->mut); in usblp_rwait_and_lock()
950 remove_wait_queue(&usblp->rwait, &waita); in usblp_rwait_and_lock()
954 static int usblp_rtest(struct usblp *usblp, int nonblock) in usblp_rtest() argument
958 if (!usblp->present) in usblp_rtest()
962 spin_lock_irqsave(&usblp->lock, flags); in usblp_rtest()
963 if (usblp->rcomplete) { in usblp_rtest()
964 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_rtest()
967 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_rtest()
976 static int usblp_submit_read(struct usblp *usblp) in usblp_submit_read() argument
986 usb_fill_bulk_urb(urb, usblp->dev, in usblp_submit_read()
987 usb_rcvbulkpipe(usblp->dev, in usblp_submit_read()
988 usblp->protocol[usblp->current_protocol].epread->bEndpointAddress), in usblp_submit_read()
989 usblp->readbuf, USBLP_BUF_SIZE_IN, in usblp_submit_read()
990 usblp_bulk_read, usblp); in usblp_submit_read()
991 usb_anchor_urb(urb, &usblp->urbs); in usblp_submit_read()
993 spin_lock_irqsave(&usblp->lock, flags); in usblp_submit_read()
994 usblp->readcount = 0; /* XXX Why here? */ in usblp_submit_read()
995 usblp->rcomplete = 0; in usblp_submit_read()
996 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_submit_read()
998 dev_dbg(&usblp->intf->dev, "error submitting urb (%d)\n", rc); in usblp_submit_read()
999 spin_lock_irqsave(&usblp->lock, flags); in usblp_submit_read()
1000 usblp->rstatus = rc; in usblp_submit_read()
1001 usblp->rcomplete = 1; in usblp_submit_read()
1002 spin_unlock_irqrestore(&usblp->lock, flags); in usblp_submit_read()
1071 struct usblp *usblp = usb_get_intfdata(intf); in usblp_show_ieee1284_id() local
1073 if (usblp->device_id_string[0] == 0 && in usblp_show_ieee1284_id()
1074 usblp->device_id_string[1] == 0) in usblp_show_ieee1284_id()
1077 return sprintf(buf, "%s", usblp->device_id_string+2); in usblp_show_ieee1284_id()
1086 struct usblp *usblp; in usblp_probe() local
1092 usblp = kzalloc(sizeof(struct usblp), GFP_KERNEL); in usblp_probe()
1093 if (!usblp) { in usblp_probe()
1097 usblp->dev = dev; in usblp_probe()
1098 mutex_init(&usblp->wmut); in usblp_probe()
1099 mutex_init(&usblp->mut); in usblp_probe()
1100 spin_lock_init(&usblp->lock); in usblp_probe()
1101 init_waitqueue_head(&usblp->rwait); in usblp_probe()
1102 init_waitqueue_head(&usblp->wwait); in usblp_probe()
1103 init_usb_anchor(&usblp->urbs); in usblp_probe()
1104 usblp->ifnum = intf->cur_altsetting->desc.bInterfaceNumber; in usblp_probe()
1105 usblp->intf = intf; in usblp_probe()
1110 if (!(usblp->device_id_string = kmalloc(USBLP_DEVICE_ID_SIZE, GFP_KERNEL))) { in usblp_probe()
1120 if (!(usblp->readbuf = kmalloc(USBLP_BUF_SIZE_IN, GFP_KERNEL))) { in usblp_probe()
1126 usblp->statusbuf = kmalloc(STATUS_BUF_SIZE, GFP_KERNEL); in usblp_probe()
1127 if (!usblp->statusbuf) { in usblp_probe()
1133 usblp->quirks = usblp_quirks( in usblp_probe()
1138 protocol = usblp_select_alts(usblp); in usblp_probe()
1149 if (usblp_set_protocol(usblp, protocol) < 0) { in usblp_probe()
1155 usblp_cache_device_id_string(usblp); in usblp_probe()
1161 usblp_check_status(usblp, 0); in usblp_probe()
1164 usb_set_intfdata(intf, usblp); in usblp_probe()
1166 usblp->present = 1; in usblp_probe()
1175 usblp->minor = intf->minor; in usblp_probe()
1178 usblp->minor, usblp->bidir ? "Bi" : "Uni", dev->devnum, in usblp_probe()
1179 usblp->ifnum, in usblp_probe()
1180 usblp->protocol[usblp->current_protocol].alt_setting, in usblp_probe()
1181 usblp->current_protocol, in usblp_probe()
1182 le16_to_cpu(usblp->dev->descriptor.idVendor), in usblp_probe()
1183 le16_to_cpu(usblp->dev->descriptor.idProduct)); in usblp_probe()
1191 kfree(usblp->readbuf); in usblp_probe()
1192 kfree(usblp->statusbuf); in usblp_probe()
1193 kfree(usblp->device_id_string); in usblp_probe()
1194 kfree(usblp); in usblp_probe()
1218 static int usblp_select_alts(struct usblp *usblp) in usblp_select_alts() argument
1225 if_alt = usblp->intf; in usblp_select_alts()
1228 usblp->protocol[p].alt_setting = -1; in usblp_select_alts()
1235 if (!(usblp->quirks & USBLP_QUIRK_BAD_CLASS)) in usblp_select_alts()
1264 } else if (usblp->quirks & USBLP_QUIRK_BIDIR) { in usblp_select_alts()
1267 usblp->minor); in usblp_select_alts()
1271 usblp->protocol[ifd->desc.bInterfaceProtocol].alt_setting = in usblp_select_alts()
1273 usblp->protocol[ifd->desc.bInterfaceProtocol].epwrite = epwrite; in usblp_select_alts()
1274 usblp->protocol[ifd->desc.bInterfaceProtocol].epread = epread; in usblp_select_alts()
1280 usblp->protocol[proto_bias].alt_setting != -1) in usblp_select_alts()
1284 if (usblp->protocol[2].alt_setting != -1) in usblp_select_alts()
1286 if (usblp->protocol[1].alt_setting != -1) in usblp_select_alts()
1288 if (usblp->protocol[3].alt_setting != -1) in usblp_select_alts()
1295 static int usblp_set_protocol(struct usblp *usblp, int protocol) in usblp_set_protocol() argument
1302 alts = usblp->protocol[protocol].alt_setting; in usblp_set_protocol()
1305 r = usb_set_interface(usblp->dev, usblp->ifnum, alts); in usblp_set_protocol()
1308 alts, usblp->ifnum); in usblp_set_protocol()
1312 usblp->bidir = (usblp->protocol[protocol].epread != NULL); in usblp_set_protocol()
1313 usblp->current_protocol = protocol; in usblp_set_protocol()
1314 dev_dbg(&usblp->intf->dev, "usblp%d set protocol %d\n", in usblp_set_protocol()
1315 usblp->minor, protocol); in usblp_set_protocol()
1322 static int usblp_cache_device_id_string(struct usblp *usblp) in usblp_cache_device_id_string() argument
1326 err = usblp_get_id(usblp, 0, usblp->device_id_string, USBLP_DEVICE_ID_SIZE - 1); in usblp_cache_device_id_string()
1328 dev_dbg(&usblp->intf->dev, in usblp_cache_device_id_string()
1330 usblp->minor, err); in usblp_cache_device_id_string()
1331 usblp->device_id_string[0] = usblp->device_id_string[1] = '\0'; in usblp_cache_device_id_string()
1338 length = be16_to_cpu(*((__be16 *)usblp->device_id_string)); in usblp_cache_device_id_string()
1343 usblp->device_id_string[length] = '\0'; in usblp_cache_device_id_string()
1345 dev_dbg(&usblp->intf->dev, "usblp%d Device ID string [len=%d]=\"%s\"\n", in usblp_cache_device_id_string()
1346 usblp->minor, length, &usblp->device_id_string[2]); in usblp_cache_device_id_string()
1353 struct usblp *usblp = usb_get_intfdata(intf); in usblp_disconnect() local
1357 if (!usblp || !usblp->dev) { in usblp_disconnect()
1365 mutex_lock(&usblp->mut); in usblp_disconnect()
1366 usblp->present = 0; in usblp_disconnect()
1367 wake_up(&usblp->wwait); in usblp_disconnect()
1368 wake_up(&usblp->rwait); in usblp_disconnect()
1371 usblp_unlink_urbs(usblp); in usblp_disconnect()
1372 mutex_unlock(&usblp->mut); in usblp_disconnect()
1374 if (!usblp->used) in usblp_disconnect()
1375 usblp_cleanup(usblp); in usblp_disconnect()
1381 struct usblp *usblp = usb_get_intfdata(intf); in usblp_suspend() local
1383 usblp_unlink_urbs(usblp); in usblp_suspend()
1386 wake_up(&usblp->wwait); in usblp_suspend()
1387 wake_up(&usblp->rwait); in usblp_suspend()
1395 struct usblp *usblp = usb_get_intfdata(intf); in usblp_resume() local
1398 r = handle_bidir(usblp); in usblp_resume()