Lines Matching refs:ddev
42 struct sk_buff *digital_skb_alloc(struct nfc_digital_dev *ddev,
47 skb = alloc_skb(len + ddev->tx_headroom + ddev->tx_tailroom,
50 skb_reserve(skb, ddev->tx_headroom);
100 static inline void digital_switch_rf(struct nfc_digital_dev *ddev, bool on)
102 ddev->ops->switch_rf(ddev, on);
105 static inline void digital_abort_cmd(struct nfc_digital_dev *ddev)
107 ddev->ops->abort_cmd(ddev);
113 struct nfc_digital_dev *ddev = container_of(work,
117 mutex_lock(&ddev->cmd_lock);
119 cmd = list_first_entry_or_null(&ddev->cmd_queue, struct digital_cmd,
122 mutex_unlock(&ddev->cmd_lock);
128 mutex_unlock(&ddev->cmd_lock);
134 cmd->cmd_cb(ddev, cmd->cb_context, cmd->resp);
139 schedule_work(&ddev->cmd_work);
142 static void digital_send_cmd_complete(struct nfc_digital_dev *ddev,
149 schedule_work(&ddev->cmd_complete_work);
157 struct nfc_digital_dev *ddev = container_of(work,
161 mutex_lock(&ddev->cmd_lock);
163 cmd = list_first_entry_or_null(&ddev->cmd_queue, struct digital_cmd,
166 mutex_unlock(&ddev->cmd_lock);
172 mutex_unlock(&ddev->cmd_lock);
180 rc = ddev->ops->in_send_cmd(ddev, cmd->req, cmd->timeout,
185 rc = ddev->ops->tg_send_cmd(ddev, cmd->req, cmd->timeout,
190 rc = ddev->ops->tg_listen(ddev, cmd->timeout,
197 rc = ddev->ops->tg_listen_mdaa(ddev, params, cmd->timeout,
202 rc = ddev->ops->tg_listen_md(ddev, cmd->timeout,
216 mutex_lock(&ddev->cmd_lock);
218 mutex_unlock(&ddev->cmd_lock);
224 schedule_work(&ddev->cmd_work);
227 int digital_send_cmd(struct nfc_digital_dev *ddev, u8 cmd_type,
246 mutex_lock(&ddev->cmd_lock);
247 list_add_tail(&cmd->queue, &ddev->cmd_queue);
248 mutex_unlock(&ddev->cmd_lock);
250 schedule_work(&ddev->cmd_work);
255 int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
259 rc = ddev->ops->in_configure_hw(ddev, type, param);
266 int digital_tg_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
270 rc = ddev->ops->tg_configure_hw(ddev, type, param);
277 static int digital_tg_listen_mdaa(struct nfc_digital_dev *ddev, u8 rf_tech)
295 rc = digital_send_cmd(ddev, DIGITAL_CMD_TG_LISTEN_MDAA, NULL, params,
303 static int digital_tg_listen_md(struct nfc_digital_dev *ddev, u8 rf_tech)
305 return digital_send_cmd(ddev, DIGITAL_CMD_TG_LISTEN_MD, NULL, NULL, 500,
309 int digital_target_found(struct nfc_digital_dev *ddev,
319 rf_tech = ddev->poll_techs[ddev->poll_tech_index].rf_tech;
377 ddev->curr_rf_tech = rf_tech;
379 if (DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
380 ddev->skb_add_crc = digital_skb_add_crc_none;
381 ddev->skb_check_crc = digital_skb_check_crc_none;
383 ddev->skb_add_crc = add_crc;
384 ddev->skb_check_crc = check_crc;
387 rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING, framing);
393 poll_tech_count = ddev->poll_tech_count;
394 ddev->poll_tech_count = 0;
396 rc = nfc_targets_found(ddev->nfc_dev, target, 1);
398 ddev->poll_tech_count = poll_tech_count;
405 void digital_poll_next_tech(struct nfc_digital_dev *ddev)
409 digital_switch_rf(ddev, 0);
411 mutex_lock(&ddev->poll_lock);
413 if (!ddev->poll_tech_count) {
414 mutex_unlock(&ddev->poll_lock);
419 ddev->poll_tech_index = rand_mod % ddev->poll_tech_count;
421 mutex_unlock(&ddev->poll_lock);
423 schedule_delayed_work(&ddev->poll_work,
431 struct nfc_digital_dev *ddev = container_of(work,
434 mutex_lock(&ddev->poll_lock);
436 if (!ddev->poll_tech_count) {
437 mutex_unlock(&ddev->poll_lock);
441 poll_tech = &ddev->poll_techs[ddev->poll_tech_index];
443 mutex_unlock(&ddev->poll_lock);
445 rc = poll_tech->poll_func(ddev, poll_tech->rf_tech);
447 digital_poll_next_tech(ddev);
450 static void digital_add_poll_tech(struct nfc_digital_dev *ddev, u8 rf_tech,
455 if (ddev->poll_tech_count >= NFC_DIGITAL_POLL_MODE_COUNT_MAX)
458 poll_tech = &ddev->poll_techs[ddev->poll_tech_count++];
471 * to the table of polling technologies (ddev->poll_techs[]) using
474 * schedule by digital_poll_next_tech() on the poll workqueue (ddev->poll_work).
479 struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
483 tm_protocols, ddev->protocols);
485 matching_im_protocols = ddev->protocols & im_protocols;
486 matching_tm_protocols = ddev->protocols & tm_protocols;
493 if (ddev->poll_tech_count) {
498 if (ddev->curr_protocol) {
503 ddev->poll_tech_count = 0;
504 ddev->poll_tech_index = 0;
507 digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_106A,
511 digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_106B,
515 digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_212F,
518 digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_424F,
523 digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_ISO15693,
527 if (ddev->ops->tg_listen_mdaa) {
528 digital_add_poll_tech(ddev, 0,
530 } else if (ddev->ops->tg_listen_md) {
531 digital_add_poll_tech(ddev, 0,
534 digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_106A,
537 digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_212F,
540 digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_424F,
545 if (!ddev->poll_tech_count) {
551 schedule_delayed_work(&ddev->poll_work, 0);
558 struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
560 mutex_lock(&ddev->poll_lock);
562 if (!ddev->poll_tech_count) {
564 mutex_unlock(&ddev->poll_lock);
568 ddev->poll_tech_count = 0;
570 mutex_unlock(&ddev->poll_lock);
572 cancel_delayed_work_sync(&ddev->poll_work);
574 digital_abort_cmd(ddev);
579 struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
581 digital_switch_rf(ddev, 1);
588 struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
590 digital_switch_rf(ddev, 0);
599 struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
602 rc = digital_in_send_atr_req(ddev, target, comm_mode, gb, gb_len);
605 ddev->curr_protocol = NFC_PROTO_NFC_DEP;
612 struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
614 digital_abort_cmd(ddev);
616 ddev->curr_protocol = 0;
624 struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
626 if (ddev->poll_tech_count) {
631 if (ddev->curr_protocol) {
636 ddev->curr_protocol = protocol;
645 struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
647 if (!ddev->curr_protocol) {
652 digital_abort_cmd(ddev);
653 ddev->curr_protocol = 0;
658 struct nfc_digital_dev *ddev = nfc_get_drvdata(dev);
660 return digital_tg_send_dep_res(ddev, skb);
663 static void digital_in_send_complete(struct nfc_digital_dev *ddev, void *arg,
675 if (ddev->curr_protocol == NFC_PROTO_MIFARE) {
681 if ((ddev->curr_protocol == NFC_PROTO_ISO14443) ||
682 (ddev->curr_protocol == NFC_PROTO_ISO14443_B)) {
683 rc = digital_in_iso_dep_pull_sod(ddev, resp);
688 rc = ddev->skb_check_crc(resp);
705 struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
716 if (ddev->curr_protocol == NFC_PROTO_NFC_DEP) {
717 rc = digital_in_send_dep_req(ddev, target, skb, data_exch);
721 if ((ddev->curr_protocol == NFC_PROTO_ISO14443) ||
722 (ddev->curr_protocol == NFC_PROTO_ISO14443_B)) {
723 rc = digital_in_iso_dep_push_sod(ddev, skb);
728 ddev->skb_add_crc(skb);
730 rc = digital_in_send_cmd(ddev, skb, 500, digital_in_send_complete,
758 struct nfc_digital_dev *ddev;
765 ddev = kzalloc(sizeof(*ddev), GFP_KERNEL);
766 if (!ddev)
769 ddev->driver_capabilities = driver_capabilities;
770 ddev->ops = ops;
772 mutex_init(&ddev->cmd_lock);
773 INIT_LIST_HEAD(&ddev->cmd_queue);
775 INIT_WORK(&ddev->cmd_work, digital_wq_cmd);
776 INIT_WORK(&ddev->cmd_complete_work, digital_wq_cmd_complete);
778 mutex_init(&ddev->poll_lock);
779 INIT_DELAYED_WORK(&ddev->poll_work, digital_wq_poll);
782 ddev->protocols |= NFC_PROTO_JEWEL_MASK;
784 ddev->protocols |= NFC_PROTO_MIFARE_MASK;
786 ddev->protocols |= NFC_PROTO_FELICA_MASK;
788 ddev->protocols |= NFC_PROTO_NFC_DEP_MASK;
790 ddev->protocols |= NFC_PROTO_ISO15693_MASK;
792 ddev->protocols |= NFC_PROTO_ISO14443_MASK;
794 ddev->protocols |= NFC_PROTO_ISO14443_B_MASK;
796 ddev->tx_headroom = tx_headroom + DIGITAL_MAX_HEADER_LEN;
797 ddev->tx_tailroom = tx_tailroom + DIGITAL_CRC_LEN;
799 ddev->nfc_dev = nfc_allocate_device(&digital_nfc_ops, ddev->protocols,
800 ddev->tx_headroom,
801 ddev->tx_tailroom);
802 if (!ddev->nfc_dev) {
807 nfc_set_drvdata(ddev->nfc_dev, ddev);
809 return ddev;
812 kfree(ddev);
818 void nfc_digital_free_device(struct nfc_digital_dev *ddev)
820 nfc_free_device(ddev->nfc_dev);
821 kfree(ddev);
825 int nfc_digital_register_device(struct nfc_digital_dev *ddev)
827 return nfc_register_device(ddev->nfc_dev);
831 void nfc_digital_unregister_device(struct nfc_digital_dev *ddev)
835 nfc_unregister_device(ddev->nfc_dev);
837 mutex_lock(&ddev->poll_lock);
838 ddev->poll_tech_count = 0;
839 mutex_unlock(&ddev->poll_lock);
841 cancel_delayed_work_sync(&ddev->poll_work);
842 cancel_work_sync(&ddev->cmd_work);
843 cancel_work_sync(&ddev->cmd_complete_work);
845 list_for_each_entry_safe(cmd, n, &ddev->cmd_queue, queue) {
853 cmd->cmd_cb(ddev, cmd->cb_context, ERR_PTR(-ENODEV));