4  * Copyright (C) 2014-2015 Marvell International Ltd.
11  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
33 	if (test_and_set_bit(NFCMRVL_NCI_RUNNING, &priv->flags))  in nfcmrvl_nci_open()
36 	/* Reset possible fault of previous session */  in nfcmrvl_nci_open()
37 	clear_bit(NFCMRVL_PHY_ERROR, &priv->flags);  in nfcmrvl_nci_open()
39 	err = priv->if_ops->nci_open(priv);  in nfcmrvl_nci_open()
42 		clear_bit(NFCMRVL_NCI_RUNNING, &priv->flags);  in nfcmrvl_nci_open()
51 	if (!test_and_clear_bit(NFCMRVL_NCI_RUNNING, &priv->flags))  in nfcmrvl_nci_close()
54 	priv->if_ops->nci_close(priv);  in nfcmrvl_nci_close()
63 	nfc_info(priv->dev, "send entry, len %d\n", skb->len);  in nfcmrvl_nci_send()
65 	skb->dev = (void *)ndev;  in nfcmrvl_nci_send()
67 	if (priv->config.hci_muxed) {  in nfcmrvl_nci_send()
69 		unsigned char len = skb->len;  in nfcmrvl_nci_send()
78 	return priv->if_ops->nci_send(priv, skb);  in nfcmrvl_nci_send()
117 		return ERR_PTR(-ENOMEM);  in nfcmrvl_nci_register_dev()
119 	priv->drv_data = drv_data;  in nfcmrvl_nci_register_dev()
120 	priv->if_ops = ops;  in nfcmrvl_nci_register_dev()
121 	priv->dev = dev;  in nfcmrvl_nci_register_dev()
122 	priv->phy = phy;  in nfcmrvl_nci_register_dev()
124 	memcpy(&priv->config, pdata, sizeof(*pdata));  in nfcmrvl_nci_register_dev()
126 	if (gpio_is_valid(priv->config.reset_n_io)) {  in nfcmrvl_nci_register_dev()
127 		rc = gpio_request_one(priv->config.reset_n_io,  in nfcmrvl_nci_register_dev()
131 			priv->config.reset_n_io = -EINVAL;  in nfcmrvl_nci_register_dev()
132 			nfc_err(dev, "failed to request reset_n io\n");  in nfcmrvl_nci_register_dev()
142 	if (priv->config.hci_muxed)  in nfcmrvl_nci_register_dev()
153 	priv->ndev = nci_allocate_device(&nfcmrvl_nci_ops, protocols,  in nfcmrvl_nci_register_dev()
155 	if (!priv->ndev) {  in nfcmrvl_nci_register_dev()
156 		nfc_err(dev, "nci_allocate_device failed\n");  in nfcmrvl_nci_register_dev()
157 		rc = -ENOMEM;  in nfcmrvl_nci_register_dev()
163 		nfc_err(dev, "failed to initialize FW download %d\n", rc);  in nfcmrvl_nci_register_dev()
167 	nci_set_drvdata(priv->ndev, priv);  in nfcmrvl_nci_register_dev()
169 	rc = nci_register_device(priv->ndev);  in nfcmrvl_nci_register_dev()
171 		nfc_err(dev, "nci_register_device failed %d\n", rc);  in nfcmrvl_nci_register_dev()
178 	nfc_info(dev, "registered with nci successfully\n");  in nfcmrvl_nci_register_dev()
184 	nci_free_device(priv->ndev);  in nfcmrvl_nci_register_dev()
186 	if (gpio_is_valid(priv->config.reset_n_io))  in nfcmrvl_nci_register_dev()
187 		gpio_free(priv->config.reset_n_io);  in nfcmrvl_nci_register_dev()
195 	struct nci_dev *ndev = priv->ndev;  in nfcmrvl_nci_unregister_dev()
198 	if (priv->ndev->nfc_dev->fw_download_in_progress)  in nfcmrvl_nci_unregister_dev()
203 	if (gpio_is_valid(priv->config.reset_n_io))  in nfcmrvl_nci_unregister_dev()
204 		gpio_free(priv->config.reset_n_io);  in nfcmrvl_nci_unregister_dev()
213 	if (priv->config.hci_muxed) {  in nfcmrvl_nci_recv_frame()
214 		if (skb->data[0] == NFCMRVL_HCI_EVENT_CODE &&  in nfcmrvl_nci_recv_frame()
215 		    skb->data[1] == NFCMRVL_HCI_NFC_EVENT_CODE) {  in nfcmrvl_nci_recv_frame()
225 	if (priv->ndev->nfc_dev->fw_download_in_progress) {  in nfcmrvl_nci_recv_frame()
230 	if (test_bit(NFCMRVL_NCI_RUNNING, &priv->flags))  in nfcmrvl_nci_recv_frame()
231 		nci_recv_frame(priv->ndev, skb);  in nfcmrvl_nci_recv_frame()
244 	/* Reset possible fault of previous session */  in nfcmrvl_chip_reset()
245 	clear_bit(NFCMRVL_PHY_ERROR, &priv->flags);  in nfcmrvl_chip_reset()
247 	if (gpio_is_valid(priv->config.reset_n_io)) {  in nfcmrvl_chip_reset()
248 		nfc_info(priv->dev, "reset the chip\n");  in nfcmrvl_chip_reset()
249 		gpio_set_value(priv->config.reset_n_io, 0);  in nfcmrvl_chip_reset()
251 		gpio_set_value(priv->config.reset_n_io, 1);  in nfcmrvl_chip_reset()
253 		nfc_info(priv->dev, "no reset available on this interface\n");  in nfcmrvl_chip_reset()
258 	if (gpio_is_valid(priv->config.reset_n_io))  in nfcmrvl_chip_halt()
259 		gpio_set_value(priv->config.reset_n_io, 0);  in nfcmrvl_chip_halt()
267 	reset_n_io = of_get_named_gpio(node, "reset-n-io", 0);  in nfcmrvl_parse_dt()
269 		pr_info("no reset-n-io config\n");  in nfcmrvl_parse_dt()
271 		pr_err("invalid reset-n-io GPIO\n");  in nfcmrvl_parse_dt()
274 	pdata->reset_n_io = reset_n_io;  in nfcmrvl_parse_dt()
276 	if (of_find_property(node, "hci-muxed", NULL))  in nfcmrvl_parse_dt()
277 		pdata->hci_muxed = 1;  in nfcmrvl_parse_dt()
279 		pdata->hci_muxed = 0;  in nfcmrvl_parse_dt()