Lines Matching refs:acm
65 static struct acm *acm_get_by_minor(unsigned int minor) in acm_get_by_minor()
67 struct acm *acm; in acm_get_by_minor() local
70 acm = idr_find(&acm_minors, minor); in acm_get_by_minor()
71 if (acm) { in acm_get_by_minor()
72 mutex_lock(&acm->mutex); in acm_get_by_minor()
73 if (acm->disconnected) { in acm_get_by_minor()
74 mutex_unlock(&acm->mutex); in acm_get_by_minor()
75 acm = NULL; in acm_get_by_minor()
77 tty_port_get(&acm->port); in acm_get_by_minor()
78 mutex_unlock(&acm->mutex); in acm_get_by_minor()
82 return acm; in acm_get_by_minor()
88 static int acm_alloc_minor(struct acm *acm) in acm_alloc_minor() argument
93 minor = idr_alloc(&acm_minors, acm, 0, ACM_TTY_MINORS, GFP_KERNEL); in acm_alloc_minor()
100 static void acm_release_minor(struct acm *acm) in acm_release_minor() argument
103 idr_remove(&acm_minors, acm->minor); in acm_release_minor()
111 static int acm_ctrl_msg(struct acm *acm, int request, int value, in acm_ctrl_msg() argument
116 retval = usb_autopm_get_interface(acm->control); in acm_ctrl_msg()
120 retval = usb_control_msg(acm->dev, usb_sndctrlpipe(acm->dev, 0), in acm_ctrl_msg()
122 acm->control->altsetting[0].desc.bInterfaceNumber, in acm_ctrl_msg()
125 dev_dbg(&acm->control->dev, in acm_ctrl_msg()
129 usb_autopm_put_interface(acm->control); in acm_ctrl_msg()
137 static inline int acm_set_control(struct acm *acm, int control) in acm_set_control() argument
139 if (acm->quirks & QUIRK_CONTROL_LINE_STATE) in acm_set_control()
142 return acm_ctrl_msg(acm, USB_CDC_REQ_SET_CONTROL_LINE_STATE, in acm_set_control()
146 #define acm_set_line(acm, line) \ argument
147 acm_ctrl_msg(acm, USB_CDC_REQ_SET_LINE_CODING, 0, line, sizeof *(line))
148 #define acm_send_break(acm, ms) \ argument
149 acm_ctrl_msg(acm, USB_CDC_REQ_SEND_BREAK, ms, NULL, 0)
151 static void acm_poison_urbs(struct acm *acm) in acm_poison_urbs() argument
155 usb_poison_urb(acm->ctrlurb); in acm_poison_urbs()
157 usb_poison_urb(acm->wb[i].urb); in acm_poison_urbs()
158 for (i = 0; i < acm->rx_buflimit; i++) in acm_poison_urbs()
159 usb_poison_urb(acm->read_urbs[i]); in acm_poison_urbs()
162 static void acm_unpoison_urbs(struct acm *acm) in acm_unpoison_urbs() argument
166 for (i = 0; i < acm->rx_buflimit; i++) in acm_unpoison_urbs()
167 usb_unpoison_urb(acm->read_urbs[i]); in acm_unpoison_urbs()
169 usb_unpoison_urb(acm->wb[i].urb); in acm_unpoison_urbs()
170 usb_unpoison_urb(acm->ctrlurb); in acm_unpoison_urbs()
179 static int acm_wb_alloc(struct acm *acm) in acm_wb_alloc() argument
187 wb = &acm->wb[wbn]; in acm_wb_alloc()
199 static int acm_wb_is_avail(struct acm *acm) in acm_wb_is_avail() argument
205 spin_lock_irqsave(&acm->write_lock, flags); in acm_wb_is_avail()
207 if(acm->wb[i].use) in acm_wb_is_avail()
209 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_wb_is_avail()
216 static void acm_write_done(struct acm *acm, struct acm_wb *wb) in acm_write_done() argument
219 acm->transmitting--; in acm_write_done()
220 usb_autopm_put_interface_async(acm->control); in acm_write_done()
229 static int acm_start_wb(struct acm *acm, struct acm_wb *wb) in acm_start_wb() argument
233 acm->transmitting++; in acm_start_wb()
238 wb->urb->dev = acm->dev; in acm_start_wb()
243 dev_err(&acm->data->dev, in acm_start_wb()
246 acm_write_done(acm, wb); in acm_start_wb()
258 struct acm *acm = usb_get_intfdata(intf); in bmCapabilities_show() local
260 return sprintf(buf, "%d", acm->ctrl_caps); in bmCapabilities_show()
268 struct acm *acm = usb_get_intfdata(intf); in wCountryCodes_show() local
270 memcpy(buf, acm->country_codes, acm->country_code_size); in wCountryCodes_show()
271 return acm->country_code_size; in wCountryCodes_show()
280 struct acm *acm = usb_get_intfdata(intf); in iCountryCodeRelDate_show() local
282 return sprintf(buf, "%d", acm->country_rel_date); in iCountryCodeRelDate_show()
290 static void acm_process_notification(struct acm *acm, unsigned char *buf) in acm_process_notification() argument
300 dev_dbg(&acm->control->dev, in acm_process_notification()
306 dev_dbg(&acm->control->dev, in acm_process_notification()
312 dev_dbg(&acm->control->dev, in acm_process_notification()
315 if (!acm->clocal && (acm->ctrlin & ~newctrl & USB_CDC_SERIAL_STATE_DCD)) { in acm_process_notification()
316 dev_dbg(&acm->control->dev, in acm_process_notification()
318 tty_port_tty_hangup(&acm->port, false); in acm_process_notification()
321 difference = acm->ctrlin ^ newctrl; in acm_process_notification()
323 if ((difference & USB_CDC_SERIAL_STATE_DCD) && acm->port.tty) { in acm_process_notification()
324 struct tty_ldisc *ld = tty_ldisc_ref(acm->port.tty); in acm_process_notification()
327 ld->ops->dcd_change(acm->port.tty, newctrl & USB_CDC_SERIAL_STATE_DCD); in acm_process_notification()
332 spin_lock_irqsave(&acm->read_lock, flags); in acm_process_notification()
333 acm->ctrlin = newctrl; in acm_process_notification()
334 acm->oldcount = acm->iocount; in acm_process_notification()
337 acm->iocount.dsr++; in acm_process_notification()
339 acm->iocount.dcd++; in acm_process_notification()
341 acm->iocount.brk++; in acm_process_notification()
342 tty_insert_flip_char(&acm->port, 0, TTY_BREAK); in acm_process_notification()
345 acm->iocount.rng++; in acm_process_notification()
347 acm->iocount.frame++; in acm_process_notification()
349 acm->iocount.parity++; in acm_process_notification()
351 acm->iocount.overrun++; in acm_process_notification()
352 spin_unlock_irqrestore(&acm->read_lock, flags); in acm_process_notification()
355 tty_flip_buffer_push(&acm->port); in acm_process_notification()
358 wake_up_all(&acm->wioctl); in acm_process_notification()
363 dev_dbg(&acm->control->dev, in acm_process_notification()
373 struct acm *acm = urb->context; in acm_ctrl_irq() local
388 dev_dbg(&acm->control->dev, in acm_ctrl_irq()
393 dev_dbg(&acm->control->dev, in acm_ctrl_irq()
399 usb_mark_last_busy(acm->dev); in acm_ctrl_irq()
401 if (acm->nb_index) in acm_ctrl_irq()
402 dr = (struct usb_cdc_notification *)acm->notification_buffer; in acm_ctrl_irq()
410 if (acm->nb_size < expected_size) { in acm_ctrl_irq()
414 new_buffer = krealloc(acm->notification_buffer, in acm_ctrl_irq()
417 acm->nb_index = 0; in acm_ctrl_irq()
421 acm->notification_buffer = new_buffer; in acm_ctrl_irq()
422 acm->nb_size = alloc_size; in acm_ctrl_irq()
423 dr = (struct usb_cdc_notification *)acm->notification_buffer; in acm_ctrl_irq()
427 expected_size - acm->nb_index); in acm_ctrl_irq()
429 memcpy(&acm->notification_buffer[acm->nb_index], in acm_ctrl_irq()
431 acm->nb_index += copy_size; in acm_ctrl_irq()
432 current_size = acm->nb_index; in acm_ctrl_irq()
437 acm_process_notification(acm, (unsigned char *)dr); in acm_ctrl_irq()
438 acm->nb_index = 0; in acm_ctrl_irq()
444 dev_err(&acm->control->dev, in acm_ctrl_irq()
447 dev_vdbg(&acm->control->dev, in acm_ctrl_irq()
451 static int acm_submit_read_urb(struct acm *acm, int index, gfp_t mem_flags) in acm_submit_read_urb() argument
455 if (!test_and_clear_bit(index, &acm->read_urbs_free)) in acm_submit_read_urb()
458 res = usb_submit_urb(acm->read_urbs[index], mem_flags); in acm_submit_read_urb()
461 dev_err(&acm->data->dev, in acm_submit_read_urb()
465 dev_vdbg(&acm->data->dev, "intended failure %d\n", res); in acm_submit_read_urb()
467 set_bit(index, &acm->read_urbs_free); in acm_submit_read_urb()
470 dev_vdbg(&acm->data->dev, "submitted urb %d\n", index); in acm_submit_read_urb()
476 static int acm_submit_read_urbs(struct acm *acm, gfp_t mem_flags) in acm_submit_read_urbs() argument
481 for (i = 0; i < acm->rx_buflimit; ++i) { in acm_submit_read_urbs()
482 res = acm_submit_read_urb(acm, i, mem_flags); in acm_submit_read_urbs()
490 static void acm_process_read_urb(struct acm *acm, struct urb *urb) in acm_process_read_urb() argument
497 spin_lock_irqsave(&acm->read_lock, flags); in acm_process_read_urb()
498 tty_insert_flip_string(&acm->port, urb->transfer_buffer, in acm_process_read_urb()
500 spin_unlock_irqrestore(&acm->read_lock, flags); in acm_process_read_urb()
502 tty_flip_buffer_push(&acm->port); in acm_process_read_urb()
508 struct acm *acm = rb->instance; in acm_read_bulk_callback() local
514 dev_vdbg(&acm->data->dev, "got urb %d, len %d, status %d\n", in acm_read_bulk_callback()
519 usb_mark_last_busy(acm->dev); in acm_read_bulk_callback()
520 acm_process_read_urb(acm, urb); in acm_read_bulk_callback()
523 set_bit(EVENT_RX_STALL, &acm->flags); in acm_read_bulk_callback()
529 dev_dbg(&acm->data->dev, in acm_read_bulk_callback()
536 dev_dbg(&acm->data->dev, in acm_read_bulk_callback()
538 usb_mark_last_busy(acm->dev); in acm_read_bulk_callback()
539 set_bit(rb->index, &acm->urbs_in_error_delay); in acm_read_bulk_callback()
540 set_bit(ACM_ERROR_DELAY, &acm->flags); in acm_read_bulk_callback()
544 dev_dbg(&acm->data->dev, in acm_read_bulk_callback()
556 set_bit(rb->index, &acm->read_urbs_free); in acm_read_bulk_callback()
566 schedule_delayed_work(&acm->dwork, 0); in acm_read_bulk_callback()
568 schedule_delayed_work(&acm->dwork, HZ / 2); in acm_read_bulk_callback()
572 if (test_bit(ACM_THROTTLED, &acm->flags)) in acm_read_bulk_callback()
575 acm_submit_read_urb(acm, rb->index, GFP_ATOMIC); in acm_read_bulk_callback()
582 struct acm *acm = wb->instance; in acm_write_bulk() local
587 dev_vdbg(&acm->data->dev, "wrote len %d/%d, status %d\n", in acm_write_bulk()
592 spin_lock_irqsave(&acm->write_lock, flags); in acm_write_bulk()
593 acm_write_done(acm, wb); in acm_write_bulk()
594 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_write_bulk()
595 set_bit(EVENT_TTY_WAKEUP, &acm->flags); in acm_write_bulk()
596 schedule_delayed_work(&acm->dwork, 0); in acm_write_bulk()
602 struct acm *acm = container_of(work, struct acm, dwork.work); in acm_softint() local
604 if (test_bit(EVENT_RX_STALL, &acm->flags)) { in acm_softint()
606 if (!acm->susp_count) { in acm_softint()
607 for (i = 0; i < acm->rx_buflimit; i++) in acm_softint()
608 usb_kill_urb(acm->read_urbs[i]); in acm_softint()
609 usb_clear_halt(acm->dev, acm->in); in acm_softint()
610 acm_submit_read_urbs(acm, GFP_KERNEL); in acm_softint()
611 clear_bit(EVENT_RX_STALL, &acm->flags); in acm_softint()
615 if (test_and_clear_bit(ACM_ERROR_DELAY, &acm->flags)) { in acm_softint()
616 for (i = 0; i < acm->rx_buflimit; i++) in acm_softint()
617 if (test_and_clear_bit(i, &acm->urbs_in_error_delay)) in acm_softint()
618 acm_submit_read_urb(acm, i, GFP_KERNEL); in acm_softint()
621 if (test_and_clear_bit(EVENT_TTY_WAKEUP, &acm->flags)) in acm_softint()
622 tty_port_tty_wakeup(&acm->port); in acm_softint()
631 struct acm *acm; in acm_tty_install() local
634 acm = acm_get_by_minor(tty->index); in acm_tty_install()
635 if (!acm) in acm_tty_install()
646 if (acm->quirks & DISABLE_ECHO) in acm_tty_install()
649 tty->driver_data = acm; in acm_tty_install()
654 tty_port_put(&acm->port); in acm_tty_install()
660 struct acm *acm = tty->driver_data; in acm_tty_open() local
662 return tty_port_open(&acm->port, tty, filp); in acm_tty_open()
667 struct acm *acm = container_of(port, struct acm, port); in acm_port_dtr_rts() local
677 acm->ctrlout = val; in acm_port_dtr_rts()
679 res = acm_set_control(acm, val); in acm_port_dtr_rts()
680 if (res && (acm->ctrl_caps & USB_CDC_CAP_LINE)) in acm_port_dtr_rts()
682 dev_dbg(&acm->control->dev, "failed to set dtr/rts\n"); in acm_port_dtr_rts()
687 struct acm *acm = container_of(port, struct acm, port); in acm_port_activate() local
691 mutex_lock(&acm->mutex); in acm_port_activate()
692 if (acm->disconnected) in acm_port_activate()
695 retval = usb_autopm_get_interface(acm->control); in acm_port_activate()
700 acm->control->needs_remote_wakeup = 1; in acm_port_activate()
702 acm->ctrlurb->dev = acm->dev; in acm_port_activate()
703 retval = usb_submit_urb(acm->ctrlurb, GFP_KERNEL); in acm_port_activate()
705 dev_err(&acm->control->dev, in acm_port_activate()
715 clear_bit(ACM_THROTTLED, &acm->flags); in acm_port_activate()
717 retval = acm_submit_read_urbs(acm, GFP_KERNEL); in acm_port_activate()
721 usb_autopm_put_interface(acm->control); in acm_port_activate()
723 mutex_unlock(&acm->mutex); in acm_port_activate()
728 for (i = 0; i < acm->rx_buflimit; i++) in acm_port_activate()
729 usb_kill_urb(acm->read_urbs[i]); in acm_port_activate()
730 usb_kill_urb(acm->ctrlurb); in acm_port_activate()
732 usb_autopm_put_interface(acm->control); in acm_port_activate()
735 mutex_unlock(&acm->mutex); in acm_port_activate()
742 struct acm *acm = container_of(port, struct acm, port); in acm_port_destruct() local
744 if (acm->minor != ACM_MINOR_INVALID) in acm_port_destruct()
745 acm_release_minor(acm); in acm_port_destruct()
746 usb_put_intf(acm->control); in acm_port_destruct()
747 kfree(acm->country_codes); in acm_port_destruct()
748 kfree(acm); in acm_port_destruct()
753 struct acm *acm = container_of(port, struct acm, port); in acm_port_shutdown() local
761 acm_poison_urbs(acm); in acm_port_shutdown()
762 spin_lock_irq(&acm->write_lock); in acm_port_shutdown()
763 spin_unlock_irq(&acm->write_lock); in acm_port_shutdown()
765 usb_autopm_get_interface_no_resume(acm->control); in acm_port_shutdown()
766 acm->control->needs_remote_wakeup = 0; in acm_port_shutdown()
767 usb_autopm_put_interface(acm->control); in acm_port_shutdown()
770 urb = usb_get_from_anchor(&acm->delayed); in acm_port_shutdown()
775 usb_autopm_put_interface_async(acm->control); in acm_port_shutdown()
778 acm_unpoison_urbs(acm); in acm_port_shutdown()
784 struct acm *acm = tty->driver_data; in acm_tty_cleanup() local
786 tty_port_put(&acm->port); in acm_tty_cleanup()
791 struct acm *acm = tty->driver_data; in acm_tty_hangup() local
793 tty_port_hangup(&acm->port); in acm_tty_hangup()
798 struct acm *acm = tty->driver_data; in acm_tty_close() local
800 tty_port_close(&acm->port, tty, filp); in acm_tty_close()
806 struct acm *acm = tty->driver_data; in acm_tty_write() local
815 dev_vdbg(&acm->data->dev, "%zu bytes from tty layer\n", count); in acm_tty_write()
817 spin_lock_irqsave(&acm->write_lock, flags); in acm_tty_write()
818 wbn = acm_wb_alloc(acm); in acm_tty_write()
820 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
823 wb = &acm->wb[wbn]; in acm_tty_write()
825 if (!acm->dev) { in acm_tty_write()
827 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
831 count = (count > acm->writesize) ? acm->writesize : count; in acm_tty_write()
832 dev_vdbg(&acm->data->dev, "writing %zu bytes\n", count); in acm_tty_write()
836 stat = usb_autopm_get_interface_async(acm->control); in acm_tty_write()
839 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
843 if (acm->susp_count) { in acm_tty_write()
844 usb_anchor_urb(wb->urb, &acm->delayed); in acm_tty_write()
845 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
849 stat = acm_start_wb(acm, wb); in acm_tty_write()
850 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
859 struct acm *acm = tty->driver_data; in acm_tty_write_room() local
864 return acm_wb_is_avail(acm) ? acm->writesize : 0; in acm_tty_write_room()
869 struct acm *acm = tty->driver_data; in acm_tty_flush_buffer() local
873 spin_lock_irqsave(&acm->write_lock, flags); in acm_tty_flush_buffer()
875 if (acm->wb[i].use) in acm_tty_flush_buffer()
876 usb_unlink_urb(acm->wb[i].urb); in acm_tty_flush_buffer()
877 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_flush_buffer()
882 struct acm *acm = tty->driver_data; in acm_tty_chars_in_buffer() local
887 if (acm->disconnected) in acm_tty_chars_in_buffer()
892 return (ACM_NW - acm_wb_is_avail(acm)) * acm->writesize; in acm_tty_chars_in_buffer()
897 struct acm *acm = tty->driver_data; in acm_tty_throttle() local
899 set_bit(ACM_THROTTLED, &acm->flags); in acm_tty_throttle()
904 struct acm *acm = tty->driver_data; in acm_tty_unthrottle() local
906 clear_bit(ACM_THROTTLED, &acm->flags); in acm_tty_unthrottle()
911 acm_submit_read_urbs(acm, GFP_KERNEL); in acm_tty_unthrottle()
916 struct acm *acm = tty->driver_data; in acm_tty_break_ctl() local
919 retval = acm_send_break(acm, state ? 0xffff : 0); in acm_tty_break_ctl()
921 dev_dbg(&acm->control->dev, in acm_tty_break_ctl()
928 struct acm *acm = tty->driver_data; in acm_tty_tiocmget() local
930 return (acm->ctrlout & USB_CDC_CTRL_DTR ? TIOCM_DTR : 0) | in acm_tty_tiocmget()
931 (acm->ctrlout & USB_CDC_CTRL_RTS ? TIOCM_RTS : 0) | in acm_tty_tiocmget()
932 (acm->ctrlin & USB_CDC_SERIAL_STATE_DSR ? TIOCM_DSR : 0) | in acm_tty_tiocmget()
933 (acm->ctrlin & USB_CDC_SERIAL_STATE_RING_SIGNAL ? TIOCM_RI : 0) | in acm_tty_tiocmget()
934 (acm->ctrlin & USB_CDC_SERIAL_STATE_DCD ? TIOCM_CD : 0) | in acm_tty_tiocmget()
941 struct acm *acm = tty->driver_data; in acm_tty_tiocmset() local
944 newctrl = acm->ctrlout; in acm_tty_tiocmset()
952 if (acm->ctrlout == newctrl) in acm_tty_tiocmset()
954 return acm_set_control(acm, acm->ctrlout = newctrl); in acm_tty_tiocmset()
959 struct acm *acm = tty->driver_data; in get_serial_info() local
961 ss->line = acm->minor; in get_serial_info()
962 ss->close_delay = jiffies_to_msecs(acm->port.close_delay) / 10; in get_serial_info()
963 ss->closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ? in get_serial_info()
965 jiffies_to_msecs(acm->port.closing_wait) / 10; in get_serial_info()
971 struct acm *acm = tty->driver_data; in set_serial_info() local
980 mutex_lock(&acm->port.mutex); in set_serial_info()
983 if ((close_delay != acm->port.close_delay) || in set_serial_info()
984 (closing_wait != acm->port.closing_wait)) in set_serial_info()
987 acm->port.close_delay = close_delay; in set_serial_info()
988 acm->port.closing_wait = closing_wait; in set_serial_info()
991 mutex_unlock(&acm->port.mutex); in set_serial_info()
995 static int wait_serial_change(struct acm *acm, unsigned long arg) in wait_serial_change() argument
1002 spin_lock_irq(&acm->read_lock); in wait_serial_change()
1003 old = acm->oldcount; in wait_serial_change()
1004 new = acm->iocount; in wait_serial_change()
1005 acm->oldcount = new; in wait_serial_change()
1006 spin_unlock_irq(&acm->read_lock); in wait_serial_change()
1018 add_wait_queue(&acm->wioctl, &wait); in wait_serial_change()
1021 remove_wait_queue(&acm->wioctl, &wait); in wait_serial_change()
1022 if (acm->disconnected) { in wait_serial_change()
1041 struct acm *acm = tty->driver_data; in acm_tty_get_icount() local
1043 icount->dsr = acm->iocount.dsr; in acm_tty_get_icount()
1044 icount->rng = acm->iocount.rng; in acm_tty_get_icount()
1045 icount->dcd = acm->iocount.dcd; in acm_tty_get_icount()
1046 icount->frame = acm->iocount.frame; in acm_tty_get_icount()
1047 icount->overrun = acm->iocount.overrun; in acm_tty_get_icount()
1048 icount->parity = acm->iocount.parity; in acm_tty_get_icount()
1049 icount->brk = acm->iocount.brk; in acm_tty_get_icount()
1057 struct acm *acm = tty->driver_data; in acm_tty_ioctl() local
1062 rv = usb_autopm_get_interface(acm->control); in acm_tty_ioctl()
1067 rv = wait_serial_change(acm, arg); in acm_tty_ioctl()
1068 usb_autopm_put_interface(acm->control); in acm_tty_ioctl()
1078 struct acm *acm = tty->driver_data; in acm_tty_set_termios() local
1081 int newctrl = acm->ctrlout; in acm_tty_set_termios()
1091 acm->clocal = ((termios->c_cflag & CLOCAL) != 0); in acm_tty_set_termios()
1094 newline.dwDTERate = acm->line.dwDTERate; in acm_tty_set_termios()
1100 if (newctrl != acm->ctrlout) in acm_tty_set_termios()
1101 acm_set_control(acm, acm->ctrlout = newctrl); in acm_tty_set_termios()
1103 if (memcmp(&acm->line, &newline, sizeof newline)) { in acm_tty_set_termios()
1104 memcpy(&acm->line, &newline, sizeof newline); in acm_tty_set_termios()
1105 dev_dbg(&acm->control->dev, "%s - set line: %d %d %d %d\n", in acm_tty_set_termios()
1110 acm_set_line(acm, &acm->line); in acm_tty_set_termios()
1126 static void acm_write_buffers_free(struct acm *acm) in acm_write_buffers_free() argument
1131 for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) in acm_write_buffers_free()
1132 usb_free_coherent(acm->dev, acm->writesize, wb->buf, wb->dmah); in acm_write_buffers_free()
1135 static void acm_read_buffers_free(struct acm *acm) in acm_read_buffers_free() argument
1139 for (i = 0; i < acm->rx_buflimit; i++) in acm_read_buffers_free()
1140 usb_free_coherent(acm->dev, acm->readsize, in acm_read_buffers_free()
1141 acm->read_buffers[i].base, acm->read_buffers[i].dma); in acm_read_buffers_free()
1145 static int acm_write_buffers_alloc(struct acm *acm) in acm_write_buffers_alloc() argument
1150 for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) { in acm_write_buffers_alloc()
1151 wb->buf = usb_alloc_coherent(acm->dev, acm->writesize, GFP_KERNEL, in acm_write_buffers_alloc()
1157 usb_free_coherent(acm->dev, acm->writesize, in acm_write_buffers_alloc()
1180 struct acm *acm; in acm_probe() local
1337 acm = kzalloc(sizeof(struct acm), GFP_KERNEL); in acm_probe()
1338 if (!acm) in acm_probe()
1341 tty_port_init(&acm->port); in acm_probe()
1342 acm->port.ops = &acm_port_ops; in acm_probe()
1347 acm->combined_interfaces = combined_interfaces; in acm_probe()
1348 acm->writesize = usb_endpoint_maxp(epwrite) * 20; in acm_probe()
1349 acm->control = control_interface; in acm_probe()
1350 acm->data = data_interface; in acm_probe()
1352 usb_get_intf(acm->control); /* undone in destruct() */ in acm_probe()
1354 minor = acm_alloc_minor(acm); in acm_probe()
1356 acm->minor = ACM_MINOR_INVALID; in acm_probe()
1360 acm->minor = minor; in acm_probe()
1361 acm->dev = usb_dev; in acm_probe()
1363 acm->ctrl_caps = h.usb_cdc_acm_descriptor->bmCapabilities; in acm_probe()
1365 acm->ctrl_caps &= ~USB_CDC_CAP_LINE; in acm_probe()
1366 acm->ctrlsize = ctrlsize; in acm_probe()
1367 acm->readsize = readsize; in acm_probe()
1368 acm->rx_buflimit = num_rx_buf; in acm_probe()
1369 INIT_DELAYED_WORK(&acm->dwork, acm_softint); in acm_probe()
1370 init_waitqueue_head(&acm->wioctl); in acm_probe()
1371 spin_lock_init(&acm->write_lock); in acm_probe()
1372 spin_lock_init(&acm->read_lock); in acm_probe()
1373 mutex_init(&acm->mutex); in acm_probe()
1375 acm->bInterval = epread->bInterval; in acm_probe()
1376 acm->in = usb_rcvintpipe(usb_dev, epread->bEndpointAddress); in acm_probe()
1378 acm->in = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress); in acm_probe()
1381 acm->out = usb_sndintpipe(usb_dev, epwrite->bEndpointAddress); in acm_probe()
1383 acm->out = usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress); in acm_probe()
1384 init_usb_anchor(&acm->delayed); in acm_probe()
1385 acm->quirks = quirks; in acm_probe()
1387 buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); in acm_probe()
1390 acm->ctrl_buffer = buf; in acm_probe()
1392 if (acm_write_buffers_alloc(acm) < 0) in acm_probe()
1395 acm->ctrlurb = usb_alloc_urb(0, GFP_KERNEL); in acm_probe()
1396 if (!acm->ctrlurb) in acm_probe()
1400 struct acm_rb *rb = &(acm->read_buffers[i]); in acm_probe()
1403 rb->base = usb_alloc_coherent(acm->dev, readsize, GFP_KERNEL, in acm_probe()
1408 rb->instance = acm; in acm_probe()
1417 usb_fill_int_urb(urb, acm->dev, acm->in, rb->base, in acm_probe()
1418 acm->readsize, in acm_probe()
1420 acm->bInterval); in acm_probe()
1422 usb_fill_bulk_urb(urb, acm->dev, acm->in, rb->base, in acm_probe()
1423 acm->readsize, in acm_probe()
1426 acm->read_urbs[i] = urb; in acm_probe()
1427 __set_bit(i, &acm->read_urbs_free); in acm_probe()
1430 struct acm_wb *snd = &(acm->wb[i]); in acm_probe()
1437 usb_fill_int_urb(snd->urb, usb_dev, acm->out, in acm_probe()
1438 NULL, acm->writesize, acm_write_bulk, snd, epwrite->bInterval); in acm_probe()
1440 usb_fill_bulk_urb(snd->urb, usb_dev, acm->out, in acm_probe()
1441 NULL, acm->writesize, acm_write_bulk, snd); in acm_probe()
1445 snd->instance = acm; in acm_probe()
1448 usb_set_intfdata(intf, acm); in acm_probe()
1458 acm->country_codes = kmalloc(cfd->bLength - 4, GFP_KERNEL); in acm_probe()
1459 if (!acm->country_codes) in acm_probe()
1461 acm->country_code_size = cfd->bLength - 4; in acm_probe()
1462 memcpy(acm->country_codes, (u8 *)&cfd->wCountyCode0, in acm_probe()
1464 acm->country_rel_date = cfd->iCountryCodeRelDate; in acm_probe()
1468 kfree(acm->country_codes); in acm_probe()
1469 acm->country_codes = NULL; in acm_probe()
1470 acm->country_code_size = 0; in acm_probe()
1478 kfree(acm->country_codes); in acm_probe()
1479 acm->country_codes = NULL; in acm_probe()
1480 acm->country_code_size = 0; in acm_probe()
1486 usb_fill_int_urb(acm->ctrlurb, usb_dev, in acm_probe()
1488 acm->ctrl_buffer, ctrlsize, acm_ctrl_irq, acm, in acm_probe()
1491 acm->ctrlurb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; in acm_probe()
1492 acm->ctrlurb->transfer_dma = acm->ctrl_dma; in acm_probe()
1493 acm->notification_buffer = NULL; in acm_probe()
1494 acm->nb_index = 0; in acm_probe()
1495 acm->nb_size = 0; in acm_probe()
1497 acm->line.dwDTERate = cpu_to_le32(9600); in acm_probe()
1498 acm->line.bDataBits = 8; in acm_probe()
1499 acm_set_line(acm, &acm->line); in acm_probe()
1501 if (!acm->combined_interfaces) { in acm_probe()
1502 rv = usb_driver_claim_interface(&acm_driver, data_interface, acm); in acm_probe()
1507 tty_dev = tty_port_register_device(&acm->port, acm_tty_driver, minor, in acm_probe()
1515 usb_clear_halt(usb_dev, acm->in); in acm_probe()
1516 usb_clear_halt(usb_dev, acm->out); in acm_probe()
1524 if (!acm->combined_interfaces) { in acm_probe()
1530 if (acm->country_codes) { in acm_probe()
1531 device_remove_file(&acm->control->dev, in acm_probe()
1533 device_remove_file(&acm->control->dev, in acm_probe()
1536 device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); in acm_probe()
1539 usb_free_urb(acm->wb[i].urb); in acm_probe()
1542 usb_free_urb(acm->read_urbs[i]); in acm_probe()
1543 acm_read_buffers_free(acm); in acm_probe()
1544 usb_free_urb(acm->ctrlurb); in acm_probe()
1546 acm_write_buffers_free(acm); in acm_probe()
1548 usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); in acm_probe()
1550 tty_port_put(&acm->port); in acm_probe()
1557 struct acm *acm = usb_get_intfdata(intf); in acm_disconnect() local
1562 if (!acm) in acm_disconnect()
1565 acm->disconnected = true; in acm_disconnect()
1571 acm_poison_urbs(acm); in acm_disconnect()
1572 mutex_lock(&acm->mutex); in acm_disconnect()
1573 if (acm->country_codes) { in acm_disconnect()
1574 device_remove_file(&acm->control->dev, in acm_disconnect()
1576 device_remove_file(&acm->control->dev, in acm_disconnect()
1579 wake_up_all(&acm->wioctl); in acm_disconnect()
1580 device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); in acm_disconnect()
1581 usb_set_intfdata(acm->control, NULL); in acm_disconnect()
1582 usb_set_intfdata(acm->data, NULL); in acm_disconnect()
1583 mutex_unlock(&acm->mutex); in acm_disconnect()
1585 tty = tty_port_tty_get(&acm->port); in acm_disconnect()
1591 cancel_delayed_work_sync(&acm->dwork); in acm_disconnect()
1593 tty_unregister_device(acm_tty_driver, acm->minor); in acm_disconnect()
1595 usb_free_urb(acm->ctrlurb); in acm_disconnect()
1597 usb_free_urb(acm->wb[i].urb); in acm_disconnect()
1598 for (i = 0; i < acm->rx_buflimit; i++) in acm_disconnect()
1599 usb_free_urb(acm->read_urbs[i]); in acm_disconnect()
1600 acm_write_buffers_free(acm); in acm_disconnect()
1601 usb_free_coherent(acm->dev, acm->ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); in acm_disconnect()
1602 acm_read_buffers_free(acm); in acm_disconnect()
1604 kfree(acm->notification_buffer); in acm_disconnect()
1606 if (!acm->combined_interfaces) in acm_disconnect()
1607 usb_driver_release_interface(&acm_driver, intf == acm->control ? in acm_disconnect()
1608 acm->data : acm->control); in acm_disconnect()
1610 tty_port_put(&acm->port); in acm_disconnect()
1616 struct acm *acm = usb_get_intfdata(intf); in acm_suspend() local
1619 spin_lock_irq(&acm->write_lock); in acm_suspend()
1621 if (acm->transmitting) { in acm_suspend()
1622 spin_unlock_irq(&acm->write_lock); in acm_suspend()
1626 cnt = acm->susp_count++; in acm_suspend()
1627 spin_unlock_irq(&acm->write_lock); in acm_suspend()
1632 acm_poison_urbs(acm); in acm_suspend()
1633 cancel_delayed_work_sync(&acm->dwork); in acm_suspend()
1634 acm->urbs_in_error_delay = 0; in acm_suspend()
1641 struct acm *acm = usb_get_intfdata(intf); in acm_resume() local
1645 spin_lock_irq(&acm->write_lock); in acm_resume()
1647 if (--acm->susp_count) in acm_resume()
1650 acm_unpoison_urbs(acm); in acm_resume()
1652 if (tty_port_initialized(&acm->port)) { in acm_resume()
1653 rv = usb_submit_urb(acm->ctrlurb, GFP_ATOMIC); in acm_resume()
1656 urb = usb_get_from_anchor(&acm->delayed); in acm_resume()
1660 acm_start_wb(acm, urb->context); in acm_resume()
1670 rv = acm_submit_read_urbs(acm, GFP_ATOMIC); in acm_resume()
1673 spin_unlock_irq(&acm->write_lock); in acm_resume()
1680 struct acm *acm = usb_get_intfdata(intf); in acm_reset_resume() local
1682 if (tty_port_initialized(&acm->port)) in acm_reset_resume()
1683 tty_port_tty_hangup(&acm->port, false); in acm_reset_resume()
1692 struct acm *acm = usb_get_intfdata(intf); in acm_pre_reset() local
1694 clear_bit(EVENT_RX_STALL, &acm->flags); in acm_pre_reset()
1695 acm->nb_index = 0; /* pending control transfers are lost */ in acm_pre_reset()