1 // SPDX-License-Identifier: GPL-2.0
5  * MEI Library for mei bus nfc device access
74 			16, 1, (skb)->data, (skb)->len, false);	\
81 			16, 1, (skb)->data, (skb)->len, false);	\
88 		 (_hdr)->cmd, (_hdr)->status, (_hdr)->req_id,       \
89 		 (_hdr)->reserved, (_hdr)->data_size);              \
107 	r = mei_cldev_send(phy->cldev, (u8 *)&cmd, sizeof(struct mei_nfc_cmd));  in mei_nfc_if_version()
119 		return -ENOMEM;  in mei_nfc_if_version()
121 	bytes_recv = mei_cldev_recv(phy->cldev, (u8 *)reply, if_version_length);  in mei_nfc_if_version()
124 		r = -EIO;  in mei_nfc_if_version()
128 	version = (struct mei_nfc_if_version *)reply->data;  in mei_nfc_if_version()
130 	phy->fw_ivn = version->fw_ivn;  in mei_nfc_if_version()
131 	phy->vendor_id = version->vendor_id;  in mei_nfc_if_version()
132 	phy->radio_type = version->radio_type;  in mei_nfc_if_version()
155 		return -ENOMEM;  in mei_nfc_connect()
156 	connect = (struct mei_nfc_connect *)cmd->data;  in mei_nfc_connect()
161 		return -ENOMEM;  in mei_nfc_connect()
164 	connect_resp = (struct mei_nfc_connect_resp *)reply->data;  in mei_nfc_connect()
166 	cmd->hdr.cmd = MEI_NFC_CMD_MAINTENANCE;  in mei_nfc_connect()
167 	cmd->hdr.data_size = 3;  in mei_nfc_connect()
168 	cmd->sub_command = MEI_NFC_SUBCMD_CONNECT;  in mei_nfc_connect()
169 	connect->fw_ivn = phy->fw_ivn;  in mei_nfc_connect()
170 	connect->vendor_id = phy->vendor_id;  in mei_nfc_connect()
172 	MEI_DUMP_NFC_HDR("connect request", &cmd->hdr);  in mei_nfc_connect()
173 	r = mei_cldev_send(phy->cldev, (u8 *)cmd, connect_length);  in mei_nfc_connect()
179 	bytes_recv = mei_cldev_recv(phy->cldev, (u8 *)reply,  in mei_nfc_connect()
187 	MEI_DUMP_NFC_HDR("connect reply", &reply->hdr);  in mei_nfc_connect()
190 		 connect_resp->fw_ivn, connect_resp->vendor_id);  in mei_nfc_connect()
193 		connect_resp->me_major, connect_resp->me_minor,  in mei_nfc_connect()
194 		connect_resp->me_hotfix, connect_resp->me_build);  in mei_nfc_connect()
211 	err = -ENOMEM;  in mei_nfc_send()
217 	hdr->cmd = MEI_NFC_CMD_HCI_SEND;  in mei_nfc_send()
218 	hdr->status = 0;  in mei_nfc_send()
219 	hdr->req_id = phy->req_id;  in mei_nfc_send()
220 	hdr->reserved = 0;  in mei_nfc_send()
221 	hdr->data_size = length;  in mei_nfc_send()
226 	err = mei_cldev_send(phy->cldev, mei_buf, length + MEI_NFC_HEADER_SIZE);  in mei_nfc_send()
230 	if (!wait_event_interruptible_timeout(phy->send_wq,  in mei_nfc_send()
231 				phy->recv_req_id == phy->req_id, HZ)) {  in mei_nfc_send()
233 		err = -ETIME;  in mei_nfc_send()
235 		phy->req_id++;  in mei_nfc_send()
254 	r = mei_nfc_send(phy, skb->data, skb->len);  in nfc_mei_phy_write()
266 	received_length = mei_cldev_recv(phy->cldev, buf, length);  in mei_nfc_recv()
273 	if (hdr->cmd == MEI_NFC_CMD_HCI_SEND) {  in mei_nfc_recv()
274 		phy->recv_req_id = hdr->req_id;  in mei_nfc_recv()
275 		wake_up(&phy->send_wq);  in mei_nfc_recv()
293 	if (phy->hard_fault != 0)  in nfc_mei_rx_cb()
300 	reply_size = mei_nfc_recv(phy, skb->data, MEI_NFC_MAX_READ);  in nfc_mei_rx_cb()
311 	nfc_hci_recv_frame(phy->hdev, skb);  in nfc_mei_rx_cb()
319 	if (phy->powered == 1)  in nfc_mei_phy_enable()
322 	r = mei_cldev_enable(phy->cldev);  in nfc_mei_phy_enable()
340 	r = mei_cldev_register_rx_cb(phy->cldev, nfc_mei_rx_cb);  in nfc_mei_phy_enable()
346 	phy->powered = 1;  in nfc_mei_phy_enable()
351 	phy->powered = 0;  in nfc_mei_phy_enable()
352 	mei_cldev_disable(phy->cldev);  in nfc_mei_phy_enable()
360 	mei_cldev_disable(phy->cldev);  in nfc_mei_phy_disable()
362 	phy->powered = 0;  in nfc_mei_phy_disable()
380 	phy->cldev = cldev;  in nfc_mei_phy_alloc()
381 	init_waitqueue_head(&phy->send_wq);  in nfc_mei_phy_alloc()
390 	mei_cldev_disable(phy->cldev);  in nfc_mei_phy_free()
396 MODULE_DESCRIPTION("mei bus NFC device interface");