Lines Matching refs:acm
64 static struct acm *acm_get_by_minor(unsigned int minor) in acm_get_by_minor()
66 struct acm *acm; in acm_get_by_minor() local
69 acm = idr_find(&acm_minors, minor); in acm_get_by_minor()
70 if (acm) { in acm_get_by_minor()
71 mutex_lock(&acm->mutex); in acm_get_by_minor()
72 if (acm->disconnected) { in acm_get_by_minor()
73 mutex_unlock(&acm->mutex); in acm_get_by_minor()
74 acm = NULL; in acm_get_by_minor()
76 tty_port_get(&acm->port); in acm_get_by_minor()
77 mutex_unlock(&acm->mutex); in acm_get_by_minor()
81 return acm; in acm_get_by_minor()
87 static int acm_alloc_minor(struct acm *acm) in acm_alloc_minor() argument
92 minor = idr_alloc(&acm_minors, acm, 0, ACM_TTY_MINORS, GFP_KERNEL); in acm_alloc_minor()
99 static void acm_release_minor(struct acm *acm) in acm_release_minor() argument
102 idr_remove(&acm_minors, acm->minor); in acm_release_minor()
110 static int acm_ctrl_msg(struct acm *acm, int request, int value, in acm_ctrl_msg() argument
115 retval = usb_autopm_get_interface(acm->control); in acm_ctrl_msg()
119 retval = usb_control_msg(acm->dev, usb_sndctrlpipe(acm->dev, 0), in acm_ctrl_msg()
121 acm->control->altsetting[0].desc.bInterfaceNumber, in acm_ctrl_msg()
124 dev_dbg(&acm->control->dev, in acm_ctrl_msg()
128 usb_autopm_put_interface(acm->control); in acm_ctrl_msg()
136 static inline int acm_set_control(struct acm *acm, int control) in acm_set_control() argument
138 if (acm->quirks & QUIRK_CONTROL_LINE_STATE) in acm_set_control()
141 return acm_ctrl_msg(acm, USB_CDC_REQ_SET_CONTROL_LINE_STATE, in acm_set_control()
145 #define acm_set_line(acm, line) \ argument
146 acm_ctrl_msg(acm, USB_CDC_REQ_SET_LINE_CODING, 0, line, sizeof *(line))
147 #define acm_send_break(acm, ms) \ argument
148 acm_ctrl_msg(acm, USB_CDC_REQ_SEND_BREAK, ms, NULL, 0)
150 static void acm_poison_urbs(struct acm *acm) in acm_poison_urbs() argument
154 usb_poison_urb(acm->ctrlurb); in acm_poison_urbs()
156 usb_poison_urb(acm->wb[i].urb); in acm_poison_urbs()
157 for (i = 0; i < acm->rx_buflimit; i++) in acm_poison_urbs()
158 usb_poison_urb(acm->read_urbs[i]); in acm_poison_urbs()
161 static void acm_unpoison_urbs(struct acm *acm) in acm_unpoison_urbs() argument
165 for (i = 0; i < acm->rx_buflimit; i++) in acm_unpoison_urbs()
166 usb_unpoison_urb(acm->read_urbs[i]); in acm_unpoison_urbs()
168 usb_unpoison_urb(acm->wb[i].urb); in acm_unpoison_urbs()
169 usb_unpoison_urb(acm->ctrlurb); in acm_unpoison_urbs()
178 static int acm_wb_alloc(struct acm *acm) in acm_wb_alloc() argument
186 wb = &acm->wb[wbn]; in acm_wb_alloc()
198 static int acm_wb_is_avail(struct acm *acm) in acm_wb_is_avail() argument
204 spin_lock_irqsave(&acm->write_lock, flags); in acm_wb_is_avail()
206 if(acm->wb[i].use) in acm_wb_is_avail()
208 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_wb_is_avail()
215 static void acm_write_done(struct acm *acm, struct acm_wb *wb) in acm_write_done() argument
218 acm->transmitting--; in acm_write_done()
219 usb_autopm_put_interface_async(acm->control); in acm_write_done()
228 static int acm_start_wb(struct acm *acm, struct acm_wb *wb) in acm_start_wb() argument
232 acm->transmitting++; in acm_start_wb()
237 wb->urb->dev = acm->dev; in acm_start_wb()
242 dev_err(&acm->data->dev, in acm_start_wb()
245 acm_write_done(acm, wb); in acm_start_wb()
257 struct acm *acm = usb_get_intfdata(intf); in bmCapabilities_show() local
259 return sprintf(buf, "%d", acm->ctrl_caps); in bmCapabilities_show()
267 struct acm *acm = usb_get_intfdata(intf); in wCountryCodes_show() local
269 memcpy(buf, acm->country_codes, acm->country_code_size); in wCountryCodes_show()
270 return acm->country_code_size; in wCountryCodes_show()
279 struct acm *acm = usb_get_intfdata(intf); in iCountryCodeRelDate_show() local
281 return sprintf(buf, "%d", acm->country_rel_date); in iCountryCodeRelDate_show()
289 static void acm_process_notification(struct acm *acm, unsigned char *buf) in acm_process_notification() argument
299 dev_dbg(&acm->control->dev, in acm_process_notification()
305 dev_dbg(&acm->control->dev, in acm_process_notification()
311 dev_dbg(&acm->control->dev, in acm_process_notification()
314 if (!acm->clocal && (acm->ctrlin & ~newctrl & USB_CDC_SERIAL_STATE_DCD)) { in acm_process_notification()
315 dev_dbg(&acm->control->dev, in acm_process_notification()
317 tty_port_tty_hangup(&acm->port, false); in acm_process_notification()
320 difference = acm->ctrlin ^ newctrl; in acm_process_notification()
321 spin_lock_irqsave(&acm->read_lock, flags); in acm_process_notification()
322 acm->ctrlin = newctrl; in acm_process_notification()
323 acm->oldcount = acm->iocount; in acm_process_notification()
326 acm->iocount.dsr++; in acm_process_notification()
328 acm->iocount.dcd++; in acm_process_notification()
330 acm->iocount.brk++; in acm_process_notification()
331 tty_insert_flip_char(&acm->port, 0, TTY_BREAK); in acm_process_notification()
334 acm->iocount.rng++; in acm_process_notification()
336 acm->iocount.frame++; in acm_process_notification()
338 acm->iocount.parity++; in acm_process_notification()
340 acm->iocount.overrun++; in acm_process_notification()
341 spin_unlock_irqrestore(&acm->read_lock, flags); in acm_process_notification()
344 tty_flip_buffer_push(&acm->port); in acm_process_notification()
347 wake_up_all(&acm->wioctl); in acm_process_notification()
352 dev_dbg(&acm->control->dev, in acm_process_notification()
362 struct acm *acm = urb->context; in acm_ctrl_irq() local
377 dev_dbg(&acm->control->dev, in acm_ctrl_irq()
382 dev_dbg(&acm->control->dev, in acm_ctrl_irq()
388 usb_mark_last_busy(acm->dev); in acm_ctrl_irq()
390 if (acm->nb_index) in acm_ctrl_irq()
391 dr = (struct usb_cdc_notification *)acm->notification_buffer; in acm_ctrl_irq()
399 if (acm->nb_size < expected_size) { in acm_ctrl_irq()
403 new_buffer = krealloc(acm->notification_buffer, in acm_ctrl_irq()
406 acm->nb_index = 0; in acm_ctrl_irq()
410 acm->notification_buffer = new_buffer; in acm_ctrl_irq()
411 acm->nb_size = alloc_size; in acm_ctrl_irq()
412 dr = (struct usb_cdc_notification *)acm->notification_buffer; in acm_ctrl_irq()
416 expected_size - acm->nb_index); in acm_ctrl_irq()
418 memcpy(&acm->notification_buffer[acm->nb_index], in acm_ctrl_irq()
420 acm->nb_index += copy_size; in acm_ctrl_irq()
421 current_size = acm->nb_index; in acm_ctrl_irq()
426 acm_process_notification(acm, (unsigned char *)dr); in acm_ctrl_irq()
427 acm->nb_index = 0; in acm_ctrl_irq()
433 dev_err(&acm->control->dev, in acm_ctrl_irq()
436 dev_vdbg(&acm->control->dev, in acm_ctrl_irq()
440 static int acm_submit_read_urb(struct acm *acm, int index, gfp_t mem_flags) in acm_submit_read_urb() argument
444 if (!test_and_clear_bit(index, &acm->read_urbs_free)) in acm_submit_read_urb()
447 res = usb_submit_urb(acm->read_urbs[index], mem_flags); in acm_submit_read_urb()
450 dev_err(&acm->data->dev, in acm_submit_read_urb()
454 dev_vdbg(&acm->data->dev, "intended failure %d\n", res); in acm_submit_read_urb()
456 set_bit(index, &acm->read_urbs_free); in acm_submit_read_urb()
459 dev_vdbg(&acm->data->dev, "submitted urb %d\n", index); in acm_submit_read_urb()
465 static int acm_submit_read_urbs(struct acm *acm, gfp_t mem_flags) in acm_submit_read_urbs() argument
470 for (i = 0; i < acm->rx_buflimit; ++i) { in acm_submit_read_urbs()
471 res = acm_submit_read_urb(acm, i, mem_flags); in acm_submit_read_urbs()
479 static void acm_process_read_urb(struct acm *acm, struct urb *urb) in acm_process_read_urb() argument
486 spin_lock_irqsave(&acm->read_lock, flags); in acm_process_read_urb()
487 tty_insert_flip_string(&acm->port, urb->transfer_buffer, in acm_process_read_urb()
489 spin_unlock_irqrestore(&acm->read_lock, flags); in acm_process_read_urb()
491 tty_flip_buffer_push(&acm->port); in acm_process_read_urb()
497 struct acm *acm = rb->instance; in acm_read_bulk_callback() local
503 dev_vdbg(&acm->data->dev, "got urb %d, len %d, status %d\n", in acm_read_bulk_callback()
508 usb_mark_last_busy(acm->dev); in acm_read_bulk_callback()
509 acm_process_read_urb(acm, urb); in acm_read_bulk_callback()
512 set_bit(EVENT_RX_STALL, &acm->flags); in acm_read_bulk_callback()
518 dev_dbg(&acm->data->dev, in acm_read_bulk_callback()
525 dev_dbg(&acm->data->dev, in acm_read_bulk_callback()
527 usb_mark_last_busy(acm->dev); in acm_read_bulk_callback()
528 set_bit(rb->index, &acm->urbs_in_error_delay); in acm_read_bulk_callback()
529 set_bit(ACM_ERROR_DELAY, &acm->flags); in acm_read_bulk_callback()
533 dev_dbg(&acm->data->dev, in acm_read_bulk_callback()
545 set_bit(rb->index, &acm->read_urbs_free); in acm_read_bulk_callback()
555 schedule_delayed_work(&acm->dwork, 0); in acm_read_bulk_callback()
557 schedule_delayed_work(&acm->dwork, HZ / 2); in acm_read_bulk_callback()
561 if (test_bit(ACM_THROTTLED, &acm->flags)) in acm_read_bulk_callback()
564 acm_submit_read_urb(acm, rb->index, GFP_ATOMIC); in acm_read_bulk_callback()
571 struct acm *acm = wb->instance; in acm_write_bulk() local
576 dev_vdbg(&acm->data->dev, "wrote len %d/%d, status %d\n", in acm_write_bulk()
581 spin_lock_irqsave(&acm->write_lock, flags); in acm_write_bulk()
582 acm_write_done(acm, wb); in acm_write_bulk()
583 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_write_bulk()
584 set_bit(EVENT_TTY_WAKEUP, &acm->flags); in acm_write_bulk()
585 schedule_delayed_work(&acm->dwork, 0); in acm_write_bulk()
591 struct acm *acm = container_of(work, struct acm, dwork.work); in acm_softint() local
593 if (test_bit(EVENT_RX_STALL, &acm->flags)) { in acm_softint()
595 if (!acm->susp_count) { in acm_softint()
596 for (i = 0; i < acm->rx_buflimit; i++) in acm_softint()
597 usb_kill_urb(acm->read_urbs[i]); in acm_softint()
598 usb_clear_halt(acm->dev, acm->in); in acm_softint()
599 acm_submit_read_urbs(acm, GFP_KERNEL); in acm_softint()
600 clear_bit(EVENT_RX_STALL, &acm->flags); in acm_softint()
604 if (test_and_clear_bit(ACM_ERROR_DELAY, &acm->flags)) { in acm_softint()
605 for (i = 0; i < acm->rx_buflimit; i++) in acm_softint()
606 if (test_and_clear_bit(i, &acm->urbs_in_error_delay)) in acm_softint()
607 acm_submit_read_urb(acm, i, GFP_KERNEL); in acm_softint()
610 if (test_and_clear_bit(EVENT_TTY_WAKEUP, &acm->flags)) in acm_softint()
611 tty_port_tty_wakeup(&acm->port); in acm_softint()
620 struct acm *acm; in acm_tty_install() local
623 acm = acm_get_by_minor(tty->index); in acm_tty_install()
624 if (!acm) in acm_tty_install()
635 if (acm->quirks & DISABLE_ECHO) in acm_tty_install()
638 tty->driver_data = acm; in acm_tty_install()
643 tty_port_put(&acm->port); in acm_tty_install()
649 struct acm *acm = tty->driver_data; in acm_tty_open() local
651 return tty_port_open(&acm->port, tty, filp); in acm_tty_open()
656 struct acm *acm = container_of(port, struct acm, port); in acm_port_dtr_rts() local
666 acm->ctrlout = val; in acm_port_dtr_rts()
668 res = acm_set_control(acm, val); in acm_port_dtr_rts()
669 if (res && (acm->ctrl_caps & USB_CDC_CAP_LINE)) in acm_port_dtr_rts()
671 dev_dbg(&acm->control->dev, "failed to set dtr/rts\n"); in acm_port_dtr_rts()
676 struct acm *acm = container_of(port, struct acm, port); in acm_port_activate() local
680 mutex_lock(&acm->mutex); in acm_port_activate()
681 if (acm->disconnected) in acm_port_activate()
684 retval = usb_autopm_get_interface(acm->control); in acm_port_activate()
689 acm->control->needs_remote_wakeup = 1; in acm_port_activate()
691 acm->ctrlurb->dev = acm->dev; in acm_port_activate()
692 retval = usb_submit_urb(acm->ctrlurb, GFP_KERNEL); in acm_port_activate()
694 dev_err(&acm->control->dev, in acm_port_activate()
704 clear_bit(ACM_THROTTLED, &acm->flags); in acm_port_activate()
706 retval = acm_submit_read_urbs(acm, GFP_KERNEL); in acm_port_activate()
710 usb_autopm_put_interface(acm->control); in acm_port_activate()
712 mutex_unlock(&acm->mutex); in acm_port_activate()
717 for (i = 0; i < acm->rx_buflimit; i++) in acm_port_activate()
718 usb_kill_urb(acm->read_urbs[i]); in acm_port_activate()
719 usb_kill_urb(acm->ctrlurb); in acm_port_activate()
721 usb_autopm_put_interface(acm->control); in acm_port_activate()
724 mutex_unlock(&acm->mutex); in acm_port_activate()
731 struct acm *acm = container_of(port, struct acm, port); in acm_port_destruct() local
733 if (acm->minor != ACM_MINOR_INVALID) in acm_port_destruct()
734 acm_release_minor(acm); in acm_port_destruct()
735 usb_put_intf(acm->control); in acm_port_destruct()
736 kfree(acm->country_codes); in acm_port_destruct()
737 kfree(acm); in acm_port_destruct()
742 struct acm *acm = container_of(port, struct acm, port); in acm_port_shutdown() local
750 acm_poison_urbs(acm); in acm_port_shutdown()
751 spin_lock_irq(&acm->write_lock); in acm_port_shutdown()
752 spin_unlock_irq(&acm->write_lock); in acm_port_shutdown()
754 usb_autopm_get_interface_no_resume(acm->control); in acm_port_shutdown()
755 acm->control->needs_remote_wakeup = 0; in acm_port_shutdown()
756 usb_autopm_put_interface(acm->control); in acm_port_shutdown()
759 urb = usb_get_from_anchor(&acm->delayed); in acm_port_shutdown()
764 usb_autopm_put_interface_async(acm->control); in acm_port_shutdown()
767 acm_unpoison_urbs(acm); in acm_port_shutdown()
773 struct acm *acm = tty->driver_data; in acm_tty_cleanup() local
775 tty_port_put(&acm->port); in acm_tty_cleanup()
780 struct acm *acm = tty->driver_data; in acm_tty_hangup() local
782 tty_port_hangup(&acm->port); in acm_tty_hangup()
787 struct acm *acm = tty->driver_data; in acm_tty_close() local
789 tty_port_close(&acm->port, tty, filp); in acm_tty_close()
795 struct acm *acm = tty->driver_data; in acm_tty_write() local
804 dev_vdbg(&acm->data->dev, "%d bytes from tty layer\n", count); in acm_tty_write()
806 spin_lock_irqsave(&acm->write_lock, flags); in acm_tty_write()
807 wbn = acm_wb_alloc(acm); in acm_tty_write()
809 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
812 wb = &acm->wb[wbn]; in acm_tty_write()
814 if (!acm->dev) { in acm_tty_write()
816 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
820 count = (count > acm->writesize) ? acm->writesize : count; in acm_tty_write()
821 dev_vdbg(&acm->data->dev, "writing %d bytes\n", count); in acm_tty_write()
825 stat = usb_autopm_get_interface_async(acm->control); in acm_tty_write()
828 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
832 if (acm->susp_count) { in acm_tty_write()
833 usb_anchor_urb(wb->urb, &acm->delayed); in acm_tty_write()
834 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
838 stat = acm_start_wb(acm, wb); in acm_tty_write()
839 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
848 struct acm *acm = tty->driver_data; in acm_tty_write_room() local
853 return acm_wb_is_avail(acm) ? acm->writesize : 0; in acm_tty_write_room()
858 struct acm *acm = tty->driver_data; in acm_tty_chars_in_buffer() local
863 if (acm->disconnected) in acm_tty_chars_in_buffer()
868 return (ACM_NW - acm_wb_is_avail(acm)) * acm->writesize; in acm_tty_chars_in_buffer()
873 struct acm *acm = tty->driver_data; in acm_tty_throttle() local
875 set_bit(ACM_THROTTLED, &acm->flags); in acm_tty_throttle()
880 struct acm *acm = tty->driver_data; in acm_tty_unthrottle() local
882 clear_bit(ACM_THROTTLED, &acm->flags); in acm_tty_unthrottle()
887 acm_submit_read_urbs(acm, GFP_KERNEL); in acm_tty_unthrottle()
892 struct acm *acm = tty->driver_data; in acm_tty_break_ctl() local
895 retval = acm_send_break(acm, state ? 0xffff : 0); in acm_tty_break_ctl()
897 dev_dbg(&acm->control->dev, in acm_tty_break_ctl()
904 struct acm *acm = tty->driver_data; in acm_tty_tiocmget() local
906 return (acm->ctrlout & USB_CDC_CTRL_DTR ? TIOCM_DTR : 0) | in acm_tty_tiocmget()
907 (acm->ctrlout & USB_CDC_CTRL_RTS ? TIOCM_RTS : 0) | in acm_tty_tiocmget()
908 (acm->ctrlin & USB_CDC_SERIAL_STATE_DSR ? TIOCM_DSR : 0) | in acm_tty_tiocmget()
909 (acm->ctrlin & USB_CDC_SERIAL_STATE_RING_SIGNAL ? TIOCM_RI : 0) | in acm_tty_tiocmget()
910 (acm->ctrlin & USB_CDC_SERIAL_STATE_DCD ? TIOCM_CD : 0) | in acm_tty_tiocmget()
917 struct acm *acm = tty->driver_data; in acm_tty_tiocmset() local
920 newctrl = acm->ctrlout; in acm_tty_tiocmset()
928 if (acm->ctrlout == newctrl) in acm_tty_tiocmset()
930 return acm_set_control(acm, acm->ctrlout = newctrl); in acm_tty_tiocmset()
935 struct acm *acm = tty->driver_data; in get_serial_info() local
937 ss->line = acm->minor; in get_serial_info()
938 ss->close_delay = jiffies_to_msecs(acm->port.close_delay) / 10; in get_serial_info()
939 ss->closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ? in get_serial_info()
941 jiffies_to_msecs(acm->port.closing_wait) / 10; in get_serial_info()
947 struct acm *acm = tty->driver_data; in set_serial_info() local
956 mutex_lock(&acm->port.mutex); in set_serial_info()
959 if ((close_delay != acm->port.close_delay) || in set_serial_info()
960 (closing_wait != acm->port.closing_wait)) in set_serial_info()
963 acm->port.close_delay = close_delay; in set_serial_info()
964 acm->port.closing_wait = closing_wait; in set_serial_info()
967 mutex_unlock(&acm->port.mutex); in set_serial_info()
971 static int wait_serial_change(struct acm *acm, unsigned long arg) in wait_serial_change() argument
978 spin_lock_irq(&acm->read_lock); in wait_serial_change()
979 old = acm->oldcount; in wait_serial_change()
980 new = acm->iocount; in wait_serial_change()
981 acm->oldcount = new; in wait_serial_change()
982 spin_unlock_irq(&acm->read_lock); in wait_serial_change()
994 add_wait_queue(&acm->wioctl, &wait); in wait_serial_change()
997 remove_wait_queue(&acm->wioctl, &wait); in wait_serial_change()
998 if (acm->disconnected) { in wait_serial_change()
1017 struct acm *acm = tty->driver_data; in acm_tty_get_icount() local
1019 icount->dsr = acm->iocount.dsr; in acm_tty_get_icount()
1020 icount->rng = acm->iocount.rng; in acm_tty_get_icount()
1021 icount->dcd = acm->iocount.dcd; in acm_tty_get_icount()
1022 icount->frame = acm->iocount.frame; in acm_tty_get_icount()
1023 icount->overrun = acm->iocount.overrun; in acm_tty_get_icount()
1024 icount->parity = acm->iocount.parity; in acm_tty_get_icount()
1025 icount->brk = acm->iocount.brk; in acm_tty_get_icount()
1033 struct acm *acm = tty->driver_data; in acm_tty_ioctl() local
1038 rv = usb_autopm_get_interface(acm->control); in acm_tty_ioctl()
1043 rv = wait_serial_change(acm, arg); in acm_tty_ioctl()
1044 usb_autopm_put_interface(acm->control); in acm_tty_ioctl()
1054 struct acm *acm = tty->driver_data; in acm_tty_set_termios() local
1057 int newctrl = acm->ctrlout; in acm_tty_set_termios()
1067 acm->clocal = ((termios->c_cflag & CLOCAL) != 0); in acm_tty_set_termios()
1070 newline.dwDTERate = acm->line.dwDTERate; in acm_tty_set_termios()
1076 if (newctrl != acm->ctrlout) in acm_tty_set_termios()
1077 acm_set_control(acm, acm->ctrlout = newctrl); in acm_tty_set_termios()
1079 if (memcmp(&acm->line, &newline, sizeof newline)) { in acm_tty_set_termios()
1080 memcpy(&acm->line, &newline, sizeof newline); in acm_tty_set_termios()
1081 dev_dbg(&acm->control->dev, "%s - set line: %d %d %d %d\n", in acm_tty_set_termios()
1086 acm_set_line(acm, &acm->line); in acm_tty_set_termios()
1102 static void acm_write_buffers_free(struct acm *acm) in acm_write_buffers_free() argument
1107 for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) in acm_write_buffers_free()
1108 usb_free_coherent(acm->dev, acm->writesize, wb->buf, wb->dmah); in acm_write_buffers_free()
1111 static void acm_read_buffers_free(struct acm *acm) in acm_read_buffers_free() argument
1115 for (i = 0; i < acm->rx_buflimit; i++) in acm_read_buffers_free()
1116 usb_free_coherent(acm->dev, acm->readsize, in acm_read_buffers_free()
1117 acm->read_buffers[i].base, acm->read_buffers[i].dma); in acm_read_buffers_free()
1121 static int acm_write_buffers_alloc(struct acm *acm) in acm_write_buffers_alloc() argument
1126 for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) { in acm_write_buffers_alloc()
1127 wb->buf = usb_alloc_coherent(acm->dev, acm->writesize, GFP_KERNEL, in acm_write_buffers_alloc()
1133 usb_free_coherent(acm->dev, acm->writesize, in acm_write_buffers_alloc()
1156 struct acm *acm; in acm_probe() local
1313 acm = kzalloc(sizeof(struct acm), GFP_KERNEL); in acm_probe()
1314 if (!acm) in acm_probe()
1317 tty_port_init(&acm->port); in acm_probe()
1318 acm->port.ops = &acm_port_ops; in acm_probe()
1323 acm->combined_interfaces = combined_interfaces; in acm_probe()
1324 acm->writesize = usb_endpoint_maxp(epwrite) * 20; in acm_probe()
1325 acm->control = control_interface; in acm_probe()
1326 acm->data = data_interface; in acm_probe()
1328 usb_get_intf(acm->control); /* undone in destruct() */ in acm_probe()
1330 minor = acm_alloc_minor(acm); in acm_probe()
1332 acm->minor = ACM_MINOR_INVALID; in acm_probe()
1336 acm->minor = minor; in acm_probe()
1337 acm->dev = usb_dev; in acm_probe()
1339 acm->ctrl_caps = h.usb_cdc_acm_descriptor->bmCapabilities; in acm_probe()
1341 acm->ctrl_caps &= ~USB_CDC_CAP_LINE; in acm_probe()
1342 acm->ctrlsize = ctrlsize; in acm_probe()
1343 acm->readsize = readsize; in acm_probe()
1344 acm->rx_buflimit = num_rx_buf; in acm_probe()
1345 INIT_DELAYED_WORK(&acm->dwork, acm_softint); in acm_probe()
1346 init_waitqueue_head(&acm->wioctl); in acm_probe()
1347 spin_lock_init(&acm->write_lock); in acm_probe()
1348 spin_lock_init(&acm->read_lock); in acm_probe()
1349 mutex_init(&acm->mutex); in acm_probe()
1351 acm->bInterval = epread->bInterval; in acm_probe()
1352 acm->in = usb_rcvintpipe(usb_dev, epread->bEndpointAddress); in acm_probe()
1354 acm->in = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress); in acm_probe()
1357 acm->out = usb_sndintpipe(usb_dev, epwrite->bEndpointAddress); in acm_probe()
1359 acm->out = usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress); in acm_probe()
1360 init_usb_anchor(&acm->delayed); in acm_probe()
1361 acm->quirks = quirks; in acm_probe()
1363 buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); in acm_probe()
1366 acm->ctrl_buffer = buf; in acm_probe()
1368 if (acm_write_buffers_alloc(acm) < 0) in acm_probe()
1371 acm->ctrlurb = usb_alloc_urb(0, GFP_KERNEL); in acm_probe()
1372 if (!acm->ctrlurb) in acm_probe()
1376 struct acm_rb *rb = &(acm->read_buffers[i]); in acm_probe()
1379 rb->base = usb_alloc_coherent(acm->dev, readsize, GFP_KERNEL, in acm_probe()
1384 rb->instance = acm; in acm_probe()
1393 usb_fill_int_urb(urb, acm->dev, acm->in, rb->base, in acm_probe()
1394 acm->readsize, in acm_probe()
1396 acm->bInterval); in acm_probe()
1398 usb_fill_bulk_urb(urb, acm->dev, acm->in, rb->base, in acm_probe()
1399 acm->readsize, in acm_probe()
1402 acm->read_urbs[i] = urb; in acm_probe()
1403 __set_bit(i, &acm->read_urbs_free); in acm_probe()
1406 struct acm_wb *snd = &(acm->wb[i]); in acm_probe()
1413 usb_fill_int_urb(snd->urb, usb_dev, acm->out, in acm_probe()
1414 NULL, acm->writesize, acm_write_bulk, snd, epwrite->bInterval); in acm_probe()
1416 usb_fill_bulk_urb(snd->urb, usb_dev, acm->out, in acm_probe()
1417 NULL, acm->writesize, acm_write_bulk, snd); in acm_probe()
1421 snd->instance = acm; in acm_probe()
1424 usb_set_intfdata(intf, acm); in acm_probe()
1434 acm->country_codes = kmalloc(cfd->bLength - 4, GFP_KERNEL); in acm_probe()
1435 if (!acm->country_codes) in acm_probe()
1437 acm->country_code_size = cfd->bLength - 4; in acm_probe()
1438 memcpy(acm->country_codes, (u8 *)&cfd->wCountyCode0, in acm_probe()
1440 acm->country_rel_date = cfd->iCountryCodeRelDate; in acm_probe()
1444 kfree(acm->country_codes); in acm_probe()
1445 acm->country_codes = NULL; in acm_probe()
1446 acm->country_code_size = 0; in acm_probe()
1454 kfree(acm->country_codes); in acm_probe()
1455 acm->country_codes = NULL; in acm_probe()
1456 acm->country_code_size = 0; in acm_probe()
1462 usb_fill_int_urb(acm->ctrlurb, usb_dev, in acm_probe()
1464 acm->ctrl_buffer, ctrlsize, acm_ctrl_irq, acm, in acm_probe()
1467 acm->ctrlurb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; in acm_probe()
1468 acm->ctrlurb->transfer_dma = acm->ctrl_dma; in acm_probe()
1469 acm->notification_buffer = NULL; in acm_probe()
1470 acm->nb_index = 0; in acm_probe()
1471 acm->nb_size = 0; in acm_probe()
1473 acm->line.dwDTERate = cpu_to_le32(9600); in acm_probe()
1474 acm->line.bDataBits = 8; in acm_probe()
1475 acm_set_line(acm, &acm->line); in acm_probe()
1477 if (!acm->combined_interfaces) { in acm_probe()
1478 rv = usb_driver_claim_interface(&acm_driver, data_interface, acm); in acm_probe()
1483 tty_dev = tty_port_register_device(&acm->port, acm_tty_driver, minor, in acm_probe()
1491 usb_clear_halt(usb_dev, acm->in); in acm_probe()
1492 usb_clear_halt(usb_dev, acm->out); in acm_probe()
1500 if (!acm->combined_interfaces) { in acm_probe()
1506 if (acm->country_codes) { in acm_probe()
1507 device_remove_file(&acm->control->dev, in acm_probe()
1509 device_remove_file(&acm->control->dev, in acm_probe()
1512 device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); in acm_probe()
1515 usb_free_urb(acm->wb[i].urb); in acm_probe()
1518 usb_free_urb(acm->read_urbs[i]); in acm_probe()
1519 acm_read_buffers_free(acm); in acm_probe()
1520 usb_free_urb(acm->ctrlurb); in acm_probe()
1522 acm_write_buffers_free(acm); in acm_probe()
1524 usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); in acm_probe()
1526 tty_port_put(&acm->port); in acm_probe()
1533 struct acm *acm = usb_get_intfdata(intf); in acm_disconnect() local
1538 if (!acm) in acm_disconnect()
1541 acm->disconnected = true; in acm_disconnect()
1547 acm_poison_urbs(acm); in acm_disconnect()
1548 mutex_lock(&acm->mutex); in acm_disconnect()
1549 if (acm->country_codes) { in acm_disconnect()
1550 device_remove_file(&acm->control->dev, in acm_disconnect()
1552 device_remove_file(&acm->control->dev, in acm_disconnect()
1555 wake_up_all(&acm->wioctl); in acm_disconnect()
1556 device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); in acm_disconnect()
1557 usb_set_intfdata(acm->control, NULL); in acm_disconnect()
1558 usb_set_intfdata(acm->data, NULL); in acm_disconnect()
1559 mutex_unlock(&acm->mutex); in acm_disconnect()
1561 tty = tty_port_tty_get(&acm->port); in acm_disconnect()
1567 cancel_delayed_work_sync(&acm->dwork); in acm_disconnect()
1569 tty_unregister_device(acm_tty_driver, acm->minor); in acm_disconnect()
1571 usb_free_urb(acm->ctrlurb); in acm_disconnect()
1573 usb_free_urb(acm->wb[i].urb); in acm_disconnect()
1574 for (i = 0; i < acm->rx_buflimit; i++) in acm_disconnect()
1575 usb_free_urb(acm->read_urbs[i]); in acm_disconnect()
1576 acm_write_buffers_free(acm); in acm_disconnect()
1577 usb_free_coherent(acm->dev, acm->ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); in acm_disconnect()
1578 acm_read_buffers_free(acm); in acm_disconnect()
1580 kfree(acm->notification_buffer); in acm_disconnect()
1582 if (!acm->combined_interfaces) in acm_disconnect()
1583 usb_driver_release_interface(&acm_driver, intf == acm->control ? in acm_disconnect()
1584 acm->data : acm->control); in acm_disconnect()
1586 tty_port_put(&acm->port); in acm_disconnect()
1592 struct acm *acm = usb_get_intfdata(intf); in acm_suspend() local
1595 spin_lock_irq(&acm->write_lock); in acm_suspend()
1597 if (acm->transmitting) { in acm_suspend()
1598 spin_unlock_irq(&acm->write_lock); in acm_suspend()
1602 cnt = acm->susp_count++; in acm_suspend()
1603 spin_unlock_irq(&acm->write_lock); in acm_suspend()
1608 acm_poison_urbs(acm); in acm_suspend()
1609 cancel_delayed_work_sync(&acm->dwork); in acm_suspend()
1610 acm->urbs_in_error_delay = 0; in acm_suspend()
1617 struct acm *acm = usb_get_intfdata(intf); in acm_resume() local
1621 spin_lock_irq(&acm->write_lock); in acm_resume()
1623 if (--acm->susp_count) in acm_resume()
1626 acm_unpoison_urbs(acm); in acm_resume()
1628 if (tty_port_initialized(&acm->port)) { in acm_resume()
1629 rv = usb_submit_urb(acm->ctrlurb, GFP_ATOMIC); in acm_resume()
1632 urb = usb_get_from_anchor(&acm->delayed); in acm_resume()
1636 acm_start_wb(acm, urb->context); in acm_resume()
1646 rv = acm_submit_read_urbs(acm, GFP_ATOMIC); in acm_resume()
1649 spin_unlock_irq(&acm->write_lock); in acm_resume()
1656 struct acm *acm = usb_get_intfdata(intf); in acm_reset_resume() local
1658 if (tty_port_initialized(&acm->port)) in acm_reset_resume()
1659 tty_port_tty_hangup(&acm->port, false); in acm_reset_resume()
1668 struct acm *acm = usb_get_intfdata(intf); in acm_pre_reset() local
1670 clear_bit(EVENT_RX_STALL, &acm->flags); in acm_pre_reset()
1671 acm->nb_index = 0; /* pending control transfers are lost */ in acm_pre_reset()