Lines Matching refs:instance
73 static int usbatm_print_packet(struct usbatm_data *instance, const unsigned char *data, int len);
280 static inline struct usbatm_vcc_data *usbatm_find_vcc(struct usbatm_data *instance, in usbatm_find_vcc() argument
285 list_for_each_entry(vcc_data, &instance->vcc_list, list) in usbatm_find_vcc()
291 static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char *source) in usbatm_extract_one_cell() argument
299 if ((vci != instance->cached_vci) || (vpi != instance->cached_vpi)) { in usbatm_extract_one_cell()
300 instance->cached_vpi = vpi; in usbatm_extract_one_cell()
301 instance->cached_vci = vci; in usbatm_extract_one_cell()
303 instance->cached_vcc = usbatm_find_vcc(instance, vpi, vci); in usbatm_extract_one_cell()
305 if (!instance->cached_vcc) in usbatm_extract_one_cell()
306 atm_rldbg(instance, "%s: unknown vpi/vci (%hd/%d)!\n", __func__, vpi, vci); in usbatm_extract_one_cell()
309 if (!instance->cached_vcc) in usbatm_extract_one_cell()
312 vcc = instance->cached_vcc->vcc; in usbatm_extract_one_cell()
317 atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n", in usbatm_extract_one_cell()
323 sarb = instance->cached_vcc->sarb; in usbatm_extract_one_cell()
326 atm_rldbg(instance, "%s: buffer overrun (sarb->len %u, vcc: 0x%p)!\n", in usbatm_extract_one_cell()
344 atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n", in usbatm_extract_one_cell()
353 atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n", in usbatm_extract_one_cell()
360 atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n", in usbatm_extract_one_cell()
366 vdbg(&instance->usb_intf->dev, in usbatm_extract_one_cell()
373 atm_err(instance, "%s: no memory for skb (length: %u)!\n", in usbatm_extract_one_cell()
379 vdbg(&instance->usb_intf->dev, in usbatm_extract_one_cell()
384 atm_rldbg(instance, "%s: failed atm_charge (skb->truesize: %u)!\n", in usbatm_extract_one_cell()
395 vdbg(&instance->usb_intf->dev, in usbatm_extract_one_cell()
399 PACKETDEBUG(instance, skb->data, skb->len); in usbatm_extract_one_cell()
409 static void usbatm_extract_cells(struct usbatm_data *instance, in usbatm_extract_cells() argument
412 unsigned int stride = instance->rx_channel.stride; in usbatm_extract_cells()
413 unsigned int buf_usage = instance->buf_usage; in usbatm_extract_cells()
420 unsigned char *cell_buf = instance->cell_buf; in usbatm_extract_cells()
428 usbatm_extract_one_cell(instance, cell_buf); in usbatm_extract_cells()
429 instance->buf_usage = 0; in usbatm_extract_cells()
433 instance->buf_usage = buf_usage + avail_data; in usbatm_extract_cells()
439 usbatm_extract_one_cell(instance, source); in usbatm_extract_cells()
444 memcpy(instance->cell_buf, source, avail_data); in usbatm_extract_cells()
445 instance->buf_usage = avail_data; in usbatm_extract_cells()
454 static unsigned int usbatm_write_cells(struct usbatm_data *instance, in usbatm_write_cells() argument
461 unsigned int stride = instance->tx_channel.stride; in usbatm_write_cells()
516 struct usbatm_data *instance = from_tasklet(instance, t, in usbatm_rx_process() local
520 while ((urb = usbatm_pop_urb(&instance->rx_channel))) { in usbatm_rx_process()
521 vdbg(&instance->usb_intf->dev, in usbatm_rx_process()
527 const unsigned int packet_size = instance->rx_channel.packet_size; in usbatm_rx_process()
538 usbatm_extract_cells(instance, merge_start, merge_length); in usbatm_rx_process()
542 atm_rldbg(instance, "%s: status %d in frame %d!\n", __func__, urb->status, i); in usbatm_rx_process()
544 usbatm_extract_cells(instance, merge_start, merge_length); in usbatm_rx_process()
546 instance->buf_usage = 0; in usbatm_rx_process()
551 usbatm_extract_cells(instance, merge_start, merge_length); in usbatm_rx_process()
554 usbatm_extract_cells(instance, urb->transfer_buffer, urb->actual_length); in usbatm_rx_process()
556 instance->buf_usage = 0; in usbatm_rx_process()
570 struct usbatm_data *instance = from_tasklet(instance, t, in usbatm_tx_process() local
572 struct sk_buff *skb = instance->current_skb; in usbatm_tx_process()
574 const unsigned int buf_size = instance->tx_channel.buf_size; in usbatm_tx_process()
579 skb = skb_dequeue(&instance->sndqueue); in usbatm_tx_process()
583 urb = usbatm_pop_urb(&instance->tx_channel); in usbatm_tx_process()
591 bytes_written += usbatm_write_cells(instance, skb, in usbatm_tx_process()
595 vdbg(&instance->usb_intf->dev, in usbatm_tx_process()
605 skb = skb_dequeue(&instance->sndqueue); in usbatm_tx_process()
617 instance->current_skb = skb; in usbatm_tx_process()
620 static void usbatm_cancel_send(struct usbatm_data *instance, in usbatm_cancel_send() argument
625 spin_lock_irq(&instance->sndqueue.lock); in usbatm_cancel_send()
626 skb_queue_walk_safe(&instance->sndqueue, skb, n) { in usbatm_cancel_send()
628 atm_dbg(instance, "%s: popping skb 0x%p\n", __func__, skb); in usbatm_cancel_send()
629 __skb_unlink(skb, &instance->sndqueue); in usbatm_cancel_send()
633 spin_unlock_irq(&instance->sndqueue.lock); in usbatm_cancel_send()
635 tasklet_disable(&instance->tx_channel.tasklet); in usbatm_cancel_send()
636 if ((skb = instance->current_skb) && (UDSL_SKB(skb)->atm.vcc == vcc)) { in usbatm_cancel_send()
637 atm_dbg(instance, "%s: popping current skb (0x%p)\n", __func__, skb); in usbatm_cancel_send()
638 instance->current_skb = NULL; in usbatm_cancel_send()
641 tasklet_enable(&instance->tx_channel.tasklet); in usbatm_cancel_send()
646 struct usbatm_data *instance = vcc->dev->dev_data; in usbatm_atm_send() local
651 if (!instance || instance->disconnected) { in usbatm_atm_send()
653 printk_ratelimited(KERN_DEBUG "%s: %s!\n", __func__, instance ? "disconnected" : "NULL instance"); in usbatm_atm_send()
660 atm_rldbg(instance, "%s: unsupported ATM type %d!\n", __func__, vcc->qos.aal); in usbatm_atm_send()
666 atm_rldbg(instance, "%s: packet too long (%d vs %d)!\n", in usbatm_atm_send()
672 PACKETDEBUG(instance, skb->data, skb->len); in usbatm_atm_send()
679 skb_queue_tail(&instance->sndqueue, skb); in usbatm_atm_send()
680 tasklet_schedule(&instance->tx_channel.tasklet); in usbatm_atm_send()
696 struct usbatm_data *instance = container_of(kref, struct usbatm_data, refcount); in usbatm_destroy_instance() local
698 tasklet_kill(&instance->rx_channel.tasklet); in usbatm_destroy_instance()
699 tasklet_kill(&instance->tx_channel.tasklet); in usbatm_destroy_instance()
700 usb_put_dev(instance->usb_dev); in usbatm_destroy_instance()
701 kfree(instance); in usbatm_destroy_instance()
704 static void usbatm_get_instance(struct usbatm_data *instance) in usbatm_get_instance() argument
706 kref_get(&instance->refcount); in usbatm_get_instance()
709 static void usbatm_put_instance(struct usbatm_data *instance) in usbatm_put_instance() argument
711 kref_put(&instance->refcount, usbatm_destroy_instance); in usbatm_put_instance()
721 struct usbatm_data *instance = atm_dev->dev_data; in usbatm_atm_dev_close() local
723 if (!instance) in usbatm_atm_dev_close()
727 usbatm_put_instance(instance); /* taken in usbatm_atm_init */ in usbatm_atm_dev_close()
732 struct usbatm_data *instance = atm_dev->dev_data; in usbatm_atm_proc_read() local
735 if (!instance) in usbatm_atm_proc_read()
739 return sprintf(page, "%s\n", instance->description); in usbatm_atm_proc_read()
754 if (instance->disconnected) in usbatm_atm_proc_read()
772 struct usbatm_data *instance = vcc->dev->dev_data; in usbatm_atm_open() local
778 if (!instance) in usbatm_atm_open()
783 atm_warn(instance, "%s: unsupported ATM type %d!\n", __func__, vcc->qos.aal); in usbatm_atm_open()
789 atm_dbg(instance, "%s: max_sdu %d out of range!\n", __func__, vcc->qos.rxtp.max_sdu); in usbatm_atm_open()
793 mutex_lock(&instance->serialize); /* vs self, usbatm_atm_close, usbatm_usb_disconnect */ in usbatm_atm_open()
795 if (instance->disconnected) { in usbatm_atm_open()
796 atm_dbg(instance, "%s: disconnected!\n", __func__); in usbatm_atm_open()
801 if (usbatm_find_vcc(instance, vpi, vci)) { in usbatm_atm_open()
802 atm_dbg(instance, "%s: %hd/%d already in use!\n", __func__, vpi, vci); in usbatm_atm_open()
819 atm_err(instance, "%s: no memory for SAR buffer!\n", __func__); in usbatm_atm_open()
826 tasklet_disable(&instance->rx_channel.tasklet); in usbatm_atm_open()
827 instance->cached_vcc = new; in usbatm_atm_open()
828 instance->cached_vpi = vpi; in usbatm_atm_open()
829 instance->cached_vci = vci; in usbatm_atm_open()
830 list_add(&new->list, &instance->vcc_list); in usbatm_atm_open()
831 tasklet_enable(&instance->rx_channel.tasklet); in usbatm_atm_open()
837 mutex_unlock(&instance->serialize); in usbatm_atm_open()
839 atm_dbg(instance, "%s: allocated vcc data 0x%p\n", __func__, new); in usbatm_atm_open()
845 mutex_unlock(&instance->serialize); in usbatm_atm_open()
851 struct usbatm_data *instance = vcc->dev->dev_data; in usbatm_atm_close() local
854 if (!instance || !vcc_data) in usbatm_atm_close()
857 usbatm_cancel_send(instance, vcc); in usbatm_atm_close()
859 mutex_lock(&instance->serialize); /* vs self, usbatm_atm_open, usbatm_usb_disconnect */ in usbatm_atm_close()
861 tasklet_disable(&instance->rx_channel.tasklet); in usbatm_atm_close()
862 if (instance->cached_vcc == vcc_data) { in usbatm_atm_close()
863 instance->cached_vcc = NULL; in usbatm_atm_close()
864 instance->cached_vpi = ATM_VPI_UNSPEC; in usbatm_atm_close()
865 instance->cached_vci = ATM_VCI_UNSPEC; in usbatm_atm_close()
868 tasklet_enable(&instance->rx_channel.tasklet); in usbatm_atm_close()
882 mutex_unlock(&instance->serialize); in usbatm_atm_close()
888 struct usbatm_data *instance = atm_dev->dev_data; in usbatm_atm_ioctl() local
890 if (!instance || instance->disconnected) in usbatm_atm_ioctl()
901 static int usbatm_atm_init(struct usbatm_data *instance) in usbatm_atm_init() argument
910 atm_dev = atm_dev_register(instance->driver_name, in usbatm_atm_init()
911 &instance->usb_intf->dev, &usbatm_atm_devops, in usbatm_atm_init()
914 usb_err(instance, "%s: failed to register ATM device!\n", __func__); in usbatm_atm_init()
918 instance->atm_dev = atm_dev; in usbatm_atm_init()
927 if (instance->driver->atm_start && ((ret = instance->driver->atm_start(instance, atm_dev)) < 0)) { in usbatm_atm_init()
928 atm_err(instance, "%s: atm_start failed: %d!\n", __func__, ret); in usbatm_atm_init()
932 usbatm_get_instance(instance); /* dropped in usbatm_atm_dev_close */ in usbatm_atm_init()
936 atm_dev->dev_data = instance; in usbatm_atm_init()
940 usbatm_submit_urb(instance->urbs[i]); in usbatm_atm_init()
945 instance->atm_dev = NULL; in usbatm_atm_init()
957 struct usbatm_data *instance = arg; in usbatm_do_heavy_init() local
961 complete(&instance->thread_started); in usbatm_do_heavy_init()
963 ret = instance->driver->heavy_init(instance, instance->usb_intf); in usbatm_do_heavy_init()
966 ret = usbatm_atm_init(instance); in usbatm_do_heavy_init()
968 mutex_lock(&instance->serialize); in usbatm_do_heavy_init()
969 instance->thread = NULL; in usbatm_do_heavy_init()
970 mutex_unlock(&instance->serialize); in usbatm_do_heavy_init()
972 kthread_complete_and_exit(&instance->thread_exited, ret); in usbatm_do_heavy_init()
975 static int usbatm_heavy_init(struct usbatm_data *instance) in usbatm_heavy_init() argument
979 t = kthread_create(usbatm_do_heavy_init, instance, "%s", in usbatm_heavy_init()
980 instance->driver->driver_name); in usbatm_heavy_init()
982 usb_err(instance, "%s: failed to create kernel_thread (%ld)!\n", in usbatm_heavy_init()
987 instance->thread = t; in usbatm_heavy_init()
989 wait_for_completion(&instance->thread_started); in usbatm_heavy_init()
1013 struct usbatm_data *instance; in usbatm_usb_probe() local
1021 size = struct_size(instance, urbs, num_rcv_urbs + num_snd_urbs); in usbatm_usb_probe()
1022 instance = kzalloc(size, GFP_KERNEL); in usbatm_usb_probe()
1023 if (!instance) in usbatm_usb_probe()
1028 instance->driver = driver; in usbatm_usb_probe()
1029 strscpy(instance->driver_name, driver->driver_name, in usbatm_usb_probe()
1030 sizeof(instance->driver_name)); in usbatm_usb_probe()
1032 instance->usb_dev = usb_dev; in usbatm_usb_probe()
1033 instance->usb_intf = intf; in usbatm_usb_probe()
1035 buf = instance->description; in usbatm_usb_probe()
1036 length = sizeof(instance->description); in usbatm_usb_probe()
1057 if (driver->bind && (error = driver->bind(instance, intf, id)) < 0) { in usbatm_usb_probe()
1064 kref_init(&instance->refcount); /* dropped in usbatm_usb_disconnect */ in usbatm_usb_probe()
1065 mutex_init(&instance->serialize); in usbatm_usb_probe()
1067 instance->thread = NULL; in usbatm_usb_probe()
1068 init_completion(&instance->thread_started); in usbatm_usb_probe()
1069 init_completion(&instance->thread_exited); in usbatm_usb_probe()
1071 INIT_LIST_HEAD(&instance->vcc_list); in usbatm_usb_probe()
1072 skb_queue_head_init(&instance->sndqueue); in usbatm_usb_probe()
1074 usbatm_init_channel(&instance->rx_channel); in usbatm_usb_probe()
1075 usbatm_init_channel(&instance->tx_channel); in usbatm_usb_probe()
1076 tasklet_setup(&instance->rx_channel.tasklet, usbatm_rx_process); in usbatm_usb_probe()
1077 tasklet_setup(&instance->tx_channel.tasklet, usbatm_tx_process); in usbatm_usb_probe()
1078 instance->rx_channel.stride = ATM_CELL_SIZE + driver->rx_padding; in usbatm_usb_probe()
1079 instance->tx_channel.stride = ATM_CELL_SIZE + driver->tx_padding; in usbatm_usb_probe()
1080 instance->rx_channel.usbatm = instance->tx_channel.usbatm = instance; in usbatm_usb_probe()
1082 if ((instance->flags & UDSL_USE_ISOC) && driver->isoc_in) in usbatm_usb_probe()
1083 instance->rx_channel.endpoint = usb_rcvisocpipe(usb_dev, driver->isoc_in); in usbatm_usb_probe()
1085 instance->rx_channel.endpoint = usb_rcvbulkpipe(usb_dev, driver->bulk_in); in usbatm_usb_probe()
1087 instance->tx_channel.endpoint = usb_sndbulkpipe(usb_dev, driver->bulk_out); in usbatm_usb_probe()
1090 instance->tx_channel.buf_size = max(instance->tx_channel.stride, in usbatm_usb_probe()
1091 snd_buf_bytes - (snd_buf_bytes % instance->tx_channel.stride)); in usbatm_usb_probe()
1094 maxpacket = usb_maxpacket(usb_dev, instance->rx_channel.endpoint); in usbatm_usb_probe()
1098 usb_pipeendpoint(instance->rx_channel.endpoint)); in usbatm_usb_probe()
1108 instance->rx_channel.buf_size = num_packets * maxpacket; in usbatm_usb_probe()
1109 instance->rx_channel.packet_size = maxpacket; in usbatm_usb_probe()
1113 &instance->tx_channel : &instance->rx_channel; in usbatm_usb_probe()
1124 &instance->rx_channel : &instance->tx_channel; in usbatm_usb_probe()
1134 instance->urbs[i] = urb; in usbatm_usb_probe()
1143 usb_fill_bulk_urb(urb, instance->usb_dev, channel->endpoint, in usbatm_usb_probe()
1164 instance->cached_vpi = ATM_VPI_UNSPEC; in usbatm_usb_probe()
1165 instance->cached_vci = ATM_VCI_UNSPEC; in usbatm_usb_probe()
1166 instance->cell_buf = kmalloc(instance->rx_channel.stride, GFP_KERNEL); in usbatm_usb_probe()
1168 if (!instance->cell_buf) { in usbatm_usb_probe()
1173 if (!(instance->flags & UDSL_SKIP_HEAVY_INIT) && driver->heavy_init) { in usbatm_usb_probe()
1174 error = usbatm_heavy_init(instance); in usbatm_usb_probe()
1176 complete(&instance->thread_exited); /* pretend that heavy_init was run */ in usbatm_usb_probe()
1177 error = usbatm_atm_init(instance); in usbatm_usb_probe()
1184 usb_set_intfdata(intf, instance); in usbatm_usb_probe()
1189 if (instance->driver->unbind) in usbatm_usb_probe()
1190 instance->driver->unbind(instance, intf); in usbatm_usb_probe()
1192 kfree(instance->cell_buf); in usbatm_usb_probe()
1195 if (instance->urbs[i]) in usbatm_usb_probe()
1196 kfree(instance->urbs[i]->transfer_buffer); in usbatm_usb_probe()
1197 usb_free_urb(instance->urbs[i]); in usbatm_usb_probe()
1200 kfree(instance); in usbatm_usb_probe()
1209 struct usbatm_data *instance = usb_get_intfdata(intf); in usbatm_usb_disconnect() local
1213 if (!instance) { in usbatm_usb_disconnect()
1220 mutex_lock(&instance->serialize); in usbatm_usb_disconnect()
1221 instance->disconnected = 1; in usbatm_usb_disconnect()
1222 if (instance->thread != NULL) in usbatm_usb_disconnect()
1223 send_sig(SIGTERM, instance->thread, 1); in usbatm_usb_disconnect()
1224 mutex_unlock(&instance->serialize); in usbatm_usb_disconnect()
1226 wait_for_completion(&instance->thread_exited); in usbatm_usb_disconnect()
1228 mutex_lock(&instance->serialize); in usbatm_usb_disconnect()
1229 list_for_each_entry(vcc_data, &instance->vcc_list, list) in usbatm_usb_disconnect()
1231 mutex_unlock(&instance->serialize); in usbatm_usb_disconnect()
1233 tasklet_disable(&instance->rx_channel.tasklet); in usbatm_usb_disconnect()
1234 tasklet_disable(&instance->tx_channel.tasklet); in usbatm_usb_disconnect()
1237 usb_kill_urb(instance->urbs[i]); in usbatm_usb_disconnect()
1239 del_timer_sync(&instance->rx_channel.delay); in usbatm_usb_disconnect()
1240 del_timer_sync(&instance->tx_channel.delay); in usbatm_usb_disconnect()
1244 INIT_LIST_HEAD(&instance->rx_channel.list); in usbatm_usb_disconnect()
1245 INIT_LIST_HEAD(&instance->tx_channel.list); in usbatm_usb_disconnect()
1247 tasklet_enable(&instance->rx_channel.tasklet); in usbatm_usb_disconnect()
1248 tasklet_enable(&instance->tx_channel.tasklet); in usbatm_usb_disconnect()
1250 if (instance->atm_dev && instance->driver->atm_stop) in usbatm_usb_disconnect()
1251 instance->driver->atm_stop(instance, instance->atm_dev); in usbatm_usb_disconnect()
1253 if (instance->driver->unbind) in usbatm_usb_disconnect()
1254 instance->driver->unbind(instance, intf); in usbatm_usb_disconnect()
1256 instance->driver_data = NULL; in usbatm_usb_disconnect()
1259 kfree(instance->urbs[i]->transfer_buffer); in usbatm_usb_disconnect()
1260 usb_free_urb(instance->urbs[i]); in usbatm_usb_disconnect()
1263 kfree(instance->cell_buf); in usbatm_usb_disconnect()
1266 if (instance->atm_dev) { in usbatm_usb_disconnect()
1267 atm_dev_deregister(instance->atm_dev); in usbatm_usb_disconnect()
1268 instance->atm_dev = NULL; in usbatm_usb_disconnect()
1271 usbatm_put_instance(instance); /* taken in usbatm_usb_probe */ in usbatm_usb_disconnect()
1313 static int usbatm_print_packet(struct usbatm_data *instance, in usbatm_print_packet() argument
1324 dev_dbg(&instance->usb_intf->dev, "%s", buffer); in usbatm_print_packet()