Lines Matching full:acm
3 * cdc-acm.c
41 #include "cdc-acm.h"
61 * Look up an ACM structure by minor. If found and not disconnected, increment
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()
85 * Try to find an available minor number and if found, associate it with 'acm'.
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()
98 /* Release the minor number associated with 'acm'. */
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()
107 * Functions for ACM control messages.
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()
134 * the cdc acm descriptor tells whether they do...
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()
213 * Finish write. Caller must hold acm->write_lock
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()
286 * Interrupt handlers for various ACM device responses
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 & ACM_CTRL_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()
633 * immediately after acm driver has been installed. 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()
693 acm->control->needs_remote_wakeup = 1; in acm_port_activate()
695 acm->ctrlurb->dev = acm->dev; in acm_port_activate()
696 retval = usb_submit_urb(acm->ctrlurb, GFP_KERNEL); in acm_port_activate()
698 dev_err(&acm->control->dev, in acm_port_activate()
708 clear_bit(ACM_THROTTLED, &acm->flags); in acm_port_activate()
710 retval = acm_submit_read_urbs(acm, GFP_KERNEL); in acm_port_activate()
714 usb_autopm_put_interface(acm->control); in acm_port_activate()
716 mutex_unlock(&acm->mutex); in acm_port_activate()
721 for (i = 0; i < acm->rx_buflimit; i++) in acm_port_activate()
722 usb_kill_urb(acm->read_urbs[i]); in acm_port_activate()
723 usb_kill_urb(acm->ctrlurb); in acm_port_activate()
725 usb_autopm_put_interface(acm->control); in acm_port_activate()
728 mutex_unlock(&acm->mutex); in acm_port_activate()
735 struct acm *acm = container_of(port, struct acm, port); in acm_port_destruct() local
737 if (acm->minor != ACM_MINOR_INVALID) in acm_port_destruct()
738 acm_release_minor(acm); in acm_port_destruct()
739 usb_put_intf(acm->control); in acm_port_destruct()
740 kfree(acm->country_codes); in acm_port_destruct()
741 kfree(acm); in acm_port_destruct()
746 struct acm *acm = container_of(port, struct acm, port); in acm_port_shutdown() local
754 acm_poison_urbs(acm); in acm_port_shutdown()
755 spin_lock_irq(&acm->write_lock); in acm_port_shutdown()
756 spin_unlock_irq(&acm->write_lock); in acm_port_shutdown()
758 usb_autopm_get_interface_no_resume(acm->control); in acm_port_shutdown()
759 acm->control->needs_remote_wakeup = 0; in acm_port_shutdown()
760 usb_autopm_put_interface(acm->control); in acm_port_shutdown()
763 urb = usb_get_from_anchor(&acm->delayed); in acm_port_shutdown()
768 usb_autopm_put_interface_async(acm->control); in acm_port_shutdown()
771 acm_unpoison_urbs(acm); in acm_port_shutdown()
777 struct acm *acm = tty->driver_data; in acm_tty_cleanup() local
779 tty_port_put(&acm->port); in acm_tty_cleanup()
784 struct acm *acm = tty->driver_data; in acm_tty_hangup() local
786 tty_port_hangup(&acm->port); in acm_tty_hangup()
791 struct acm *acm = tty->driver_data; in acm_tty_close() local
793 tty_port_close(&acm->port, tty, filp); in acm_tty_close()
799 struct acm *acm = tty->driver_data; in acm_tty_write() local
808 dev_vdbg(&acm->data->dev, "%d bytes from tty layer\n", count); in acm_tty_write()
810 spin_lock_irqsave(&acm->write_lock, flags); in acm_tty_write()
811 wbn = acm_wb_alloc(acm); in acm_tty_write()
813 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
816 wb = &acm->wb[wbn]; in acm_tty_write()
818 if (!acm->dev) { in acm_tty_write()
820 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
824 count = (count > acm->writesize) ? acm->writesize : count; in acm_tty_write()
825 dev_vdbg(&acm->data->dev, "writing %d bytes\n", count); in acm_tty_write()
829 stat = usb_autopm_get_interface_async(acm->control); in acm_tty_write()
832 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
836 if (acm->susp_count) { in acm_tty_write()
837 usb_anchor_urb(wb->urb, &acm->delayed); in acm_tty_write()
838 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
842 stat = acm_start_wb(acm, wb); in acm_tty_write()
843 spin_unlock_irqrestore(&acm->write_lock, flags); in acm_tty_write()
852 struct acm *acm = tty->driver_data; in acm_tty_write_room() local
857 return acm_wb_is_avail(acm) ? acm->writesize : 0; in acm_tty_write_room()
862 struct acm *acm = tty->driver_data; in acm_tty_chars_in_buffer() local
867 if (acm->disconnected) in acm_tty_chars_in_buffer()
872 return (ACM_NW - acm_wb_is_avail(acm)) * acm->writesize; in acm_tty_chars_in_buffer()
877 struct acm *acm = tty->driver_data; in acm_tty_throttle() local
879 set_bit(ACM_THROTTLED, &acm->flags); in acm_tty_throttle()
884 struct acm *acm = tty->driver_data; in acm_tty_unthrottle() local
886 clear_bit(ACM_THROTTLED, &acm->flags); in acm_tty_unthrottle()
891 acm_submit_read_urbs(acm, GFP_KERNEL); in acm_tty_unthrottle()
896 struct acm *acm = tty->driver_data; in acm_tty_break_ctl() local
899 if (!(acm->ctrl_caps & USB_CDC_CAP_BRK)) in acm_tty_break_ctl()
902 retval = acm_send_break(acm, state ? 0xffff : 0); in acm_tty_break_ctl()
904 dev_dbg(&acm->control->dev, in acm_tty_break_ctl()
911 struct acm *acm = tty->driver_data; in acm_tty_tiocmget() local
913 return (acm->ctrlout & ACM_CTRL_DTR ? TIOCM_DTR : 0) | in acm_tty_tiocmget()
914 (acm->ctrlout & ACM_CTRL_RTS ? TIOCM_RTS : 0) | in acm_tty_tiocmget()
915 (acm->ctrlin & ACM_CTRL_DSR ? TIOCM_DSR : 0) | in acm_tty_tiocmget()
916 (acm->ctrlin & ACM_CTRL_RI ? TIOCM_RI : 0) | in acm_tty_tiocmget()
917 (acm->ctrlin & ACM_CTRL_DCD ? TIOCM_CD : 0) | in acm_tty_tiocmget()
924 struct acm *acm = tty->driver_data; in acm_tty_tiocmset() local
927 newctrl = acm->ctrlout; in acm_tty_tiocmset()
935 if (acm->ctrlout == newctrl) in acm_tty_tiocmset()
937 return acm_set_control(acm, acm->ctrlout = newctrl); in acm_tty_tiocmset()
942 struct acm *acm = tty->driver_data; in get_serial_info() local
944 ss->line = acm->minor; in get_serial_info()
945 ss->close_delay = jiffies_to_msecs(acm->port.close_delay) / 10; in get_serial_info()
946 ss->closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ? in get_serial_info()
948 jiffies_to_msecs(acm->port.closing_wait) / 10; in get_serial_info()
954 struct acm *acm = tty->driver_data; in set_serial_info() local
963 mutex_lock(&acm->port.mutex); in set_serial_info()
966 if ((close_delay != acm->port.close_delay) || in set_serial_info()
967 (closing_wait != acm->port.closing_wait)) in set_serial_info()
970 acm->port.close_delay = close_delay; in set_serial_info()
971 acm->port.closing_wait = closing_wait; in set_serial_info()
974 mutex_unlock(&acm->port.mutex); in set_serial_info()
978 static int wait_serial_change(struct acm *acm, unsigned long arg) in wait_serial_change() argument
985 spin_lock_irq(&acm->read_lock); in wait_serial_change()
986 old = acm->oldcount; in wait_serial_change()
987 new = acm->iocount; in wait_serial_change()
988 acm->oldcount = new; in wait_serial_change()
989 spin_unlock_irq(&acm->read_lock); in wait_serial_change()
1001 add_wait_queue(&acm->wioctl, &wait); in wait_serial_change()
1004 remove_wait_queue(&acm->wioctl, &wait); in wait_serial_change()
1005 if (acm->disconnected) { in wait_serial_change()
1024 struct acm *acm = tty->driver_data; in acm_tty_get_icount() local
1026 icount->dsr = acm->iocount.dsr; in acm_tty_get_icount()
1027 icount->rng = acm->iocount.rng; in acm_tty_get_icount()
1028 icount->dcd = acm->iocount.dcd; in acm_tty_get_icount()
1029 icount->frame = acm->iocount.frame; in acm_tty_get_icount()
1030 icount->overrun = acm->iocount.overrun; in acm_tty_get_icount()
1031 icount->parity = acm->iocount.parity; in acm_tty_get_icount()
1032 icount->brk = acm->iocount.brk; in acm_tty_get_icount()
1040 struct acm *acm = tty->driver_data; in acm_tty_ioctl() local
1045 rv = usb_autopm_get_interface(acm->control); in acm_tty_ioctl()
1050 rv = wait_serial_change(acm, arg); in acm_tty_ioctl()
1051 usb_autopm_put_interface(acm->control); in acm_tty_ioctl()
1061 struct acm *acm = tty->driver_data; in acm_tty_set_termios() local
1064 int newctrl = acm->ctrlout; in acm_tty_set_termios()
1087 acm->clocal = ((termios->c_cflag & CLOCAL) != 0); in acm_tty_set_termios()
1090 newline.dwDTERate = acm->line.dwDTERate; in acm_tty_set_termios()
1096 if (newctrl != acm->ctrlout) in acm_tty_set_termios()
1097 acm_set_control(acm, acm->ctrlout = newctrl); in acm_tty_set_termios()
1099 if (memcmp(&acm->line, &newline, sizeof newline)) { in acm_tty_set_termios()
1100 memcpy(&acm->line, &newline, sizeof newline); in acm_tty_set_termios()
1101 dev_dbg(&acm->control->dev, "%s - set line: %d %d %d %d\n", in acm_tty_set_termios()
1106 acm_set_line(acm, &acm->line); in acm_tty_set_termios()
1122 static void acm_write_buffers_free(struct acm *acm) in acm_write_buffers_free() argument
1127 for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) in acm_write_buffers_free()
1128 usb_free_coherent(acm->dev, acm->writesize, wb->buf, wb->dmah); in acm_write_buffers_free()
1131 static void acm_read_buffers_free(struct acm *acm) in acm_read_buffers_free() argument
1135 for (i = 0; i < acm->rx_buflimit; i++) in acm_read_buffers_free()
1136 usb_free_coherent(acm->dev, acm->readsize, in acm_read_buffers_free()
1137 acm->read_buffers[i].base, acm->read_buffers[i].dma); in acm_read_buffers_free()
1141 static int acm_write_buffers_alloc(struct acm *acm) in acm_write_buffers_alloc() argument
1146 for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) { in acm_write_buffers_alloc()
1147 wb->buf = usb_alloc_coherent(acm->dev, acm->writesize, GFP_KERNEL, in acm_write_buffers_alloc()
1153 usb_free_coherent(acm->dev, acm->writesize, in acm_write_buffers_alloc()
1176 struct acm *acm; in acm_probe() local
1340 acm = kzalloc(sizeof(struct acm), GFP_KERNEL); in acm_probe()
1341 if (acm == NULL) in acm_probe()
1344 tty_port_init(&acm->port); in acm_probe()
1345 acm->port.ops = &acm_port_ops; in acm_probe()
1350 acm->combined_interfaces = combined_interfaces; in acm_probe()
1351 acm->writesize = usb_endpoint_maxp(epwrite) * 20; in acm_probe()
1352 acm->control = control_interface; in acm_probe()
1353 acm->data = data_interface; in acm_probe()
1355 usb_get_intf(acm->control); /* undone in destruct() */ in acm_probe()
1357 minor = acm_alloc_minor(acm); in acm_probe()
1359 acm->minor = ACM_MINOR_INVALID; in acm_probe()
1363 acm->minor = minor; in acm_probe()
1364 acm->dev = usb_dev; in acm_probe()
1366 acm->ctrl_caps = h.usb_cdc_acm_descriptor->bmCapabilities; in acm_probe()
1368 acm->ctrl_caps &= ~USB_CDC_CAP_LINE; in acm_probe()
1369 acm->ctrlsize = ctrlsize; in acm_probe()
1370 acm->readsize = readsize; in acm_probe()
1371 acm->rx_buflimit = num_rx_buf; in acm_probe()
1372 INIT_DELAYED_WORK(&acm->dwork, acm_softint); in acm_probe()
1373 init_waitqueue_head(&acm->wioctl); in acm_probe()
1374 spin_lock_init(&acm->write_lock); in acm_probe()
1375 spin_lock_init(&acm->read_lock); in acm_probe()
1376 mutex_init(&acm->mutex); in acm_probe()
1378 acm->bInterval = epread->bInterval; in acm_probe()
1379 acm->in = usb_rcvintpipe(usb_dev, epread->bEndpointAddress); in acm_probe()
1381 acm->in = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress); in acm_probe()
1384 acm->out = usb_sndintpipe(usb_dev, epwrite->bEndpointAddress); in acm_probe()
1386 acm->out = usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress); in acm_probe()
1387 init_usb_anchor(&acm->delayed); in acm_probe()
1388 acm->quirks = quirks; in acm_probe()
1390 buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); in acm_probe()
1393 acm->ctrl_buffer = buf; in acm_probe()
1395 if (acm_write_buffers_alloc(acm) < 0) in acm_probe()
1398 acm->ctrlurb = usb_alloc_urb(0, GFP_KERNEL); in acm_probe()
1399 if (!acm->ctrlurb) in acm_probe()
1403 struct acm_rb *rb = &(acm->read_buffers[i]); in acm_probe()
1406 rb->base = usb_alloc_coherent(acm->dev, readsize, GFP_KERNEL, in acm_probe()
1411 rb->instance = acm; in acm_probe()
1420 usb_fill_int_urb(urb, acm->dev, acm->in, rb->base, in acm_probe()
1421 acm->readsize, in acm_probe()
1423 acm->bInterval); in acm_probe()
1425 usb_fill_bulk_urb(urb, acm->dev, acm->in, rb->base, in acm_probe()
1426 acm->readsize, in acm_probe()
1429 acm->read_urbs[i] = urb; in acm_probe()
1430 __set_bit(i, &acm->read_urbs_free); in acm_probe()
1433 struct acm_wb *snd = &(acm->wb[i]); in acm_probe()
1440 usb_fill_int_urb(snd->urb, usb_dev, acm->out, in acm_probe()
1441 NULL, acm->writesize, acm_write_bulk, snd, epwrite->bInterval); in acm_probe()
1443 usb_fill_bulk_urb(snd->urb, usb_dev, acm->out, in acm_probe()
1444 NULL, acm->writesize, acm_write_bulk, snd); in acm_probe()
1448 snd->instance = acm; in acm_probe()
1451 usb_set_intfdata(intf, acm); in acm_probe()
1461 acm->country_codes = kmalloc(cfd->bLength - 4, GFP_KERNEL); in acm_probe()
1462 if (!acm->country_codes) in acm_probe()
1464 acm->country_code_size = cfd->bLength - 4; in acm_probe()
1465 memcpy(acm->country_codes, (u8 *)&cfd->wCountyCode0, in acm_probe()
1467 acm->country_rel_date = cfd->iCountryCodeRelDate; in acm_probe()
1471 kfree(acm->country_codes); in acm_probe()
1472 acm->country_codes = NULL; in acm_probe()
1473 acm->country_code_size = 0; in acm_probe()
1481 kfree(acm->country_codes); in acm_probe()
1482 acm->country_codes = NULL; in acm_probe()
1483 acm->country_code_size = 0; in acm_probe()
1489 usb_fill_int_urb(acm->ctrlurb, usb_dev, in acm_probe()
1491 acm->ctrl_buffer, ctrlsize, acm_ctrl_irq, acm, in acm_probe()
1494 acm->ctrlurb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; in acm_probe()
1495 acm->ctrlurb->transfer_dma = acm->ctrl_dma; in acm_probe()
1496 acm->notification_buffer = NULL; in acm_probe()
1497 acm->nb_index = 0; in acm_probe()
1498 acm->nb_size = 0; in acm_probe()
1500 dev_info(&intf->dev, "ttyACM%d: USB ACM device\n", minor); in acm_probe()
1502 acm->line.dwDTERate = cpu_to_le32(9600); in acm_probe()
1503 acm->line.bDataBits = 8; in acm_probe()
1504 acm_set_line(acm, &acm->line); in acm_probe()
1506 usb_driver_claim_interface(&acm_driver, data_interface, acm); in acm_probe()
1507 usb_set_intfdata(data_interface, acm); in acm_probe()
1509 tty_dev = tty_port_register_device(&acm->port, acm_tty_driver, minor, in acm_probe()
1517 usb_clear_halt(usb_dev, acm->in); in acm_probe()
1518 usb_clear_halt(usb_dev, acm->out); in acm_probe()
1523 if (!acm->combined_interfaces) { in acm_probe()
1528 if (acm->country_codes) { in acm_probe()
1529 device_remove_file(&acm->control->dev, in acm_probe()
1531 device_remove_file(&acm->control->dev, in acm_probe()
1534 device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); in acm_probe()
1538 usb_free_urb(acm->wb[i].urb); in acm_probe()
1541 usb_free_urb(acm->read_urbs[i]); in acm_probe()
1542 acm_read_buffers_free(acm); in acm_probe()
1543 usb_free_urb(acm->ctrlurb); in acm_probe()
1545 acm_write_buffers_free(acm); in acm_probe()
1547 usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); in acm_probe()
1549 tty_port_put(&acm->port); in acm_probe()
1556 struct acm *acm = usb_get_intfdata(intf); in acm_disconnect() local
1561 if (!acm) in acm_disconnect()
1564 acm->disconnected = true; in acm_disconnect()
1570 acm_poison_urbs(acm); in acm_disconnect()
1571 mutex_lock(&acm->mutex); in acm_disconnect()
1572 if (acm->country_codes) { in acm_disconnect()
1573 device_remove_file(&acm->control->dev, in acm_disconnect()
1575 device_remove_file(&acm->control->dev, in acm_disconnect()
1578 wake_up_all(&acm->wioctl); in acm_disconnect()
1579 device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); in acm_disconnect()
1580 usb_set_intfdata(acm->control, NULL); in acm_disconnect()
1581 usb_set_intfdata(acm->data, NULL); in acm_disconnect()
1582 mutex_unlock(&acm->mutex); in acm_disconnect()
1584 tty = tty_port_tty_get(&acm->port); in acm_disconnect()
1590 cancel_delayed_work_sync(&acm->dwork); in acm_disconnect()
1592 tty_unregister_device(acm_tty_driver, acm->minor); in acm_disconnect()
1594 usb_free_urb(acm->ctrlurb); in acm_disconnect()
1596 usb_free_urb(acm->wb[i].urb); in acm_disconnect()
1597 for (i = 0; i < acm->rx_buflimit; i++) in acm_disconnect()
1598 usb_free_urb(acm->read_urbs[i]); in acm_disconnect()
1599 acm_write_buffers_free(acm); in acm_disconnect()
1600 usb_free_coherent(acm->dev, acm->ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); in acm_disconnect()
1601 acm_read_buffers_free(acm); in acm_disconnect()
1603 kfree(acm->notification_buffer); in acm_disconnect()
1605 if (!acm->combined_interfaces) in acm_disconnect()
1606 usb_driver_release_interface(&acm_driver, intf == acm->control ? in acm_disconnect()
1607 acm->data : acm->control); in acm_disconnect()
1609 tty_port_put(&acm->port); in acm_disconnect()
1615 struct acm *acm = usb_get_intfdata(intf); in acm_suspend() local
1618 spin_lock_irq(&acm->write_lock); in acm_suspend()
1620 if (acm->transmitting) { in acm_suspend()
1621 spin_unlock_irq(&acm->write_lock); in acm_suspend()
1625 cnt = acm->susp_count++; in acm_suspend()
1626 spin_unlock_irq(&acm->write_lock); in acm_suspend()
1631 acm_poison_urbs(acm); in acm_suspend()
1632 cancel_delayed_work_sync(&acm->dwork); in acm_suspend()
1633 acm->urbs_in_error_delay = 0; in acm_suspend()
1640 struct acm *acm = usb_get_intfdata(intf); in acm_resume() local
1644 spin_lock_irq(&acm->write_lock); in acm_resume()
1646 if (--acm->susp_count) in acm_resume()
1649 acm_unpoison_urbs(acm); in acm_resume()
1651 if (tty_port_initialized(&acm->port)) { in acm_resume()
1652 rv = usb_submit_urb(acm->ctrlurb, GFP_ATOMIC); in acm_resume()
1655 urb = usb_get_from_anchor(&acm->delayed); in acm_resume()
1659 acm_start_wb(acm, urb->context); in acm_resume()
1669 rv = acm_submit_read_urbs(acm, GFP_ATOMIC); in acm_resume()
1672 spin_unlock_irq(&acm->write_lock); in acm_resume()
1679 struct acm *acm = usb_get_intfdata(intf); in acm_reset_resume() local
1681 if (tty_port_initialized(&acm->port)) in acm_reset_resume()
1682 tty_port_tty_hangup(&acm->port, false); in acm_reset_resume()
1691 struct acm *acm = usb_get_intfdata(intf); in acm_pre_reset() local
1693 clear_bit(EVENT_RX_STALL, &acm->flags); in acm_pre_reset()
1694 acm->nb_index = 0; /* pending control transfers are lost */ in acm_pre_reset()
1847 /* Nokia S60 phones expose two ACM channels. The first is
1914 /* NOTE: non-Nokia COMM/ACM/0xff is likely MSFT RNDIS... NOT a modem! */
1956 { USB_DEVICE(0x1bc7, 0x0021), /* Telit 3G ACM only composition */
1959 { USB_DEVICE(0x1bc7, 0x0023), /* Telit 3G ACM + ECM composition */
2052 acm_tty_driver->driver_name = "acm", in acm_init()