343 static int secondary_configuration_type4a(struct st95hf_context *stcontext)  in secondary_configuration_type4a()  argument
346 	struct device *dev = &stcontext->nfcdev->dev;  in secondary_configuration_type4a()
349 	result = st95hf_send_recv_cmd(stcontext,  in secondary_configuration_type4a()
360 	result = st95hf_send_recv_cmd(stcontext,  in secondary_configuration_type4a()
371 static int secondary_configuration_type4b(struct st95hf_context *stcontext)  in secondary_configuration_type4b()  argument
374 	struct device *dev = &stcontext->nfcdev->dev;  in secondary_configuration_type4b()
376 	result = st95hf_send_recv_cmd(stcontext,  in secondary_configuration_type4b()
387 static int st95hf_select_protocol(struct st95hf_context *stcontext, int type)  in st95hf_select_protocol()  argument
392 	dev = &stcontext->nfcdev->dev;  in st95hf_select_protocol()
396 		stcontext->current_rf_tech = NFC_DIGITAL_RF_TECH_106A;  in st95hf_select_protocol()
397 		result = st95hf_send_recv_cmd(stcontext,  in st95hf_select_protocol()
409 		result = secondary_configuration_type4a(stcontext);  in st95hf_select_protocol()
417 		stcontext->current_rf_tech = NFC_DIGITAL_RF_TECH_106B;  in st95hf_select_protocol()
418 		result = st95hf_send_recv_cmd(stcontext,  in st95hf_select_protocol()
436 		result = secondary_configuration_type4b(stcontext);  in st95hf_select_protocol()
444 		stcontext->current_rf_tech = NFC_DIGITAL_RF_TECH_ISO15693;  in st95hf_select_protocol()
445 		result = st95hf_send_recv_cmd(stcontext,  in st95hf_select_protocol()
615 static int st95hf_handle_wtx(struct st95hf_context *stcontext,  in st95hf_handle_wtx()  argument
622 	struct nfc_digital_dev *nfcddev = stcontext->ddev;  in st95hf_handle_wtx()
623 	struct device *dev = &stcontext->nfcdev->dev;  in st95hf_handle_wtx()
626 		result = iso14443_config_fdt(stcontext, wtx_val & 0x3f);  in st95hf_handle_wtx()
637 		result = st95hf_send_recv_cmd(stcontext,  in st95hf_handle_wtx()
653 	result = iso14443_config_fdt(stcontext, val_mm);  in st95hf_handle_wtx()
661 static int st95hf_error_handling(struct st95hf_context *stcontext,  in st95hf_error_handling()  argument
667 	struct device *dev = &stcontext->nfcdev->dev;  in st95hf_error_handling()
679 	switch (stcontext->current_rf_tech) {  in st95hf_error_handling()
681 		if (stcontext->sendrcv_trflag == TRFLAG_NFCA_STD_FRAME_CRC) {  in st95hf_error_handling()
706 static int st95hf_response_handler(struct st95hf_context *stcontext,  in st95hf_response_handler()  argument
713 	struct nfc_digital_dev *nfcddev = stcontext->ddev;  in st95hf_response_handler()
714 	struct device *dev = &stcontext->nfcdev->dev;  in st95hf_response_handler()
717 	cb_arg = &stcontext->complete_cb_arg;  in st95hf_response_handler()
731 			stcontext->fwi =  in st95hf_response_handler()
734 			stcontext->fwi =  in st95hf_response_handler()
739 		result = iso14443_config_fdt(stcontext, val_mm);  in st95hf_response_handler()
749 	switch (stcontext->current_rf_tech) {  in st95hf_response_handler()
751 		if (stcontext->sendrcv_trflag == TRFLAG_NFCA_STD_FRAME_CRC)  in st95hf_response_handler()
767 	struct st95hf_context *stcontext  =  in st95hf_irq_handler()  local
770 	if (stcontext->spicontext.req_issync) {  in st95hf_irq_handler()
771 		complete(&stcontext->spicontext.done);  in st95hf_irq_handler()
772 		stcontext->spicontext.req_issync = false;  in st95hf_irq_handler()
788 	struct st95hf_context *stcontext  =  in st95hf_irq_thread_handler()  local
792 	spidevice = &stcontext->spicontext.spidev->dev;  in st95hf_irq_thread_handler()
807 	if (!down_trylock(&stcontext->exchange_lock)) {  in st95hf_irq_thread_handler()
808 		up(&stcontext->exchange_lock);  in st95hf_irq_thread_handler()
813 	cb_arg = &stcontext->complete_cb_arg;  in st95hf_irq_thread_handler()
816 	mutex_lock(&stcontext->rm_lock);  in st95hf_irq_thread_handler()
817 	res_len = st95hf_spi_recv_response(&stcontext->spicontext,  in st95hf_irq_thread_handler()
826 	if (stcontext->nfcdev_free) {  in st95hf_irq_thread_handler()
831 	dev = &stcontext->nfcdev->dev;  in st95hf_irq_thread_handler()
832 	nfcddev = stcontext->ddev;  in st95hf_irq_thread_handler()
835 		result = st95hf_handle_wtx(stcontext, true, skb_resp->data[3]);  in st95hf_irq_thread_handler()
840 		mutex_unlock(&stcontext->rm_lock);  in st95hf_irq_thread_handler()
844 	result = st95hf_error_handling(stcontext, skb_resp, res_len);  in st95hf_irq_thread_handler()
848 	result = st95hf_response_handler(stcontext, skb_resp, res_len);  in st95hf_irq_thread_handler()
858 		result = st95hf_handle_wtx(stcontext, false, 0);  in st95hf_irq_thread_handler()
864 	cb_arg->complete_cb(stcontext->ddev, cb_arg->cb_usrarg, skb_resp);  in st95hf_irq_thread_handler()
867 	up(&stcontext->exchange_lock);  in st95hf_irq_thread_handler()
868 	mutex_unlock(&stcontext->rm_lock);  in st95hf_irq_thread_handler()
878 	cb_arg->complete_cb(stcontext->ddev, cb_arg->cb_usrarg, skb_resp);  in st95hf_irq_thread_handler()
880 	up(&stcontext->exchange_lock);  in st95hf_irq_thread_handler()
881 	mutex_unlock(&stcontext->rm_lock);  in st95hf_irq_thread_handler()
890 	struct st95hf_context *stcontext = nfc_digital_get_drvdata(ddev);  in st95hf_in_configure_hw()  local
893 		return st95hf_select_protocol(stcontext, param);  in st95hf_in_configure_hw()
898 			stcontext->sendrcv_trflag = TRFLAG_NFCA_SHORT_FRAME;  in st95hf_in_configure_hw()
901 			stcontext->sendrcv_trflag = TRFLAG_NFCA_STD_FRAME;  in st95hf_in_configure_hw()
906 			stcontext->sendrcv_trflag = TRFLAG_NFCA_STD_FRAME_CRC;  in st95hf_in_configure_hw()
918 static int rf_off(struct st95hf_context *stcontext)  in rf_off()  argument
923 	dev = &stcontext->nfcdev->dev;  in rf_off()
925 	rc = st95hf_send_recv_cmd(stcontext, CMD_FIELD_OFF, 0, NULL, true);  in rf_off()
938 	struct st95hf_context *stcontext = nfc_digital_get_drvdata(ddev);  in st95hf_in_send_cmd()  local
949 	switch (stcontext->current_rf_tech) {  in st95hf_in_send_cmd()
952 		skb_put_u8(skb, stcontext->sendrcv_trflag);  in st95hf_in_send_cmd()
968 	stcontext->complete_cb_arg.skb_resp = skb_resp;  in st95hf_in_send_cmd()
969 	stcontext->complete_cb_arg.cb_usrarg = arg;  in st95hf_in_send_cmd()
970 	stcontext->complete_cb_arg.complete_cb = cb;  in st95hf_in_send_cmd()
974 		stcontext->complete_cb_arg.rats = true;  in st95hf_in_send_cmd()
981 	rc = down_killable(&stcontext->exchange_lock);  in st95hf_in_send_cmd()
987 	rc = st95hf_spi_send(&stcontext->spicontext, skb->data,  in st95hf_in_send_cmd()
991 		dev_err(&stcontext->nfcdev->dev,  in st95hf_in_send_cmd()
994 		up(&stcontext->exchange_lock);  in st95hf_in_send_cmd()
1041 	struct st95hf_context *stcontext = nfc_digital_get_drvdata(ddev);  in st95hf_switch_rf()  local
1047 		return st95hf_select_protocol(stcontext, rf_tech);  in st95hf_switch_rf()
1050 	return rf_off(stcontext);  in st95hf_switch_rf()
1220 	struct st95hf_context *stcontext = container_of(spictx,  in st95hf_remove()  local
1224 	mutex_lock(&stcontext->rm_lock);  in st95hf_remove()
1226 	nfc_digital_unregister_device(stcontext->ddev);  in st95hf_remove()
1227 	nfc_digital_free_device(stcontext->ddev);  in st95hf_remove()
1228 	stcontext->nfcdev_free = true;  in st95hf_remove()
1230 	mutex_unlock(&stcontext->rm_lock);  in st95hf_remove()
1233 	result = down_killable(&stcontext->exchange_lock);  in st95hf_remove()
1238 	result = st95hf_spi_send(&stcontext->spicontext,  in st95hf_remove()
1252 	if (stcontext->st95hf_supply)  in st95hf_remove()
1253 		regulator_disable(stcontext->st95hf_supply);  in st95hf_remove()