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path: root/drivers/nfc/nfcmrvl/main.c
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Diffstat (limited to 'drivers/nfc/nfcmrvl/main.c')
-rw-r--r--drivers/nfc/nfcmrvl/main.c88
1 files changed, 57 insertions, 31 deletions
diff --git a/drivers/nfc/nfcmrvl/main.c b/drivers/nfc/nfcmrvl/main.c
index 4a8866d62..51c8240a1 100644
--- a/drivers/nfc/nfcmrvl/main.c
+++ b/drivers/nfc/nfcmrvl/main.c
@@ -1,7 +1,7 @@
/*
* Marvell NFC driver: major functions
*
- * Copyright (C) 2014, Marvell International Ltd.
+ * Copyright (C) 2014-2015 Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
@@ -25,8 +25,6 @@
#include <net/nfc/nci_core.h>
#include "nfcmrvl.h"
-#define VERSION "1.0"
-
static int nfcmrvl_nci_open(struct nci_dev *ndev)
{
struct nfcmrvl_private *priv = nci_get_drvdata(ndev);
@@ -35,6 +33,9 @@ static int nfcmrvl_nci_open(struct nci_dev *ndev)
if (test_and_set_bit(NFCMRVL_NCI_RUNNING, &priv->flags))
return 0;
+ /* Reset possible fault of previous session */
+ clear_bit(NFCMRVL_PHY_ERROR, &priv->flags);
+
err = priv->if_ops->nci_open(priv);
if (err)
@@ -63,9 +64,6 @@ static int nfcmrvl_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
skb->dev = (void *)ndev;
- if (!test_bit(NFCMRVL_NCI_RUNNING, &priv->flags))
- return -EBUSY;
-
if (priv->config.hci_muxed) {
unsigned char *hdr;
unsigned char len = skb->len;
@@ -88,21 +86,30 @@ static int nfcmrvl_nci_setup(struct nci_dev *ndev)
return 0;
}
+static int nfcmrvl_nci_fw_download(struct nci_dev *ndev,
+ const char *firmware_name)
+{
+ return nfcmrvl_fw_dnld_start(ndev, firmware_name);
+}
+
static struct nci_ops nfcmrvl_nci_ops = {
.open = nfcmrvl_nci_open,
.close = nfcmrvl_nci_close,
.send = nfcmrvl_nci_send,
.setup = nfcmrvl_nci_setup,
+ .fw_download = nfcmrvl_nci_fw_download,
};
-struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
+struct nfcmrvl_private *nfcmrvl_nci_register_dev(enum nfcmrvl_phy phy,
+ void *drv_data,
struct nfcmrvl_if_ops *ops,
struct device *dev,
struct nfcmrvl_platform_data *pdata)
{
struct nfcmrvl_private *priv;
int rc;
- int headroom = 0;
+ int headroom;
+ int tailroom;
u32 protocols;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@@ -112,6 +119,7 @@ struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
priv->drv_data = drv_data;
priv->if_ops = ops;
priv->dev = dev;
+ priv->phy = phy;
memcpy(&priv->config, pdata, sizeof(*pdata));
@@ -124,8 +132,14 @@ struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
nfc_err(dev, "failed to request reset_n io\n");
}
+ if (phy == NFCMRVL_PHY_SPI) {
+ headroom = NCI_SPI_HDR_LEN;
+ tailroom = 1;
+ } else
+ headroom = tailroom = 0;
+
if (priv->config.hci_muxed)
- headroom = NFCMRVL_HCI_EVENT_HEADER_SIZE;
+ headroom += NFCMRVL_HCI_EVENT_HEADER_SIZE;
protocols = NFC_PROTO_JEWEL_MASK
| NFC_PROTO_MIFARE_MASK
@@ -136,7 +150,7 @@ struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
| NFC_PROTO_NFC_DEP_MASK;
priv->ndev = nci_allocate_device(&nfcmrvl_nci_ops, protocols,
- headroom, 0);
+ headroom, tailroom);
if (!priv->ndev) {
nfc_err(dev, "nci_allocate_device failed\n");
rc = -ENOMEM;
@@ -145,18 +159,26 @@ struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
nci_set_drvdata(priv->ndev, priv);
- nfcmrvl_chip_reset(priv);
-
rc = nci_register_device(priv->ndev);
if (rc) {
nfc_err(dev, "nci_register_device failed %d\n", rc);
- nci_free_device(priv->ndev);
- goto error;
+ goto error_free_dev;
+ }
+
+ /* Ensure that controller is powered off */
+ nfcmrvl_chip_halt(priv);
+
+ rc = nfcmrvl_fw_dnld_init(priv);
+ if (rc) {
+ nfc_err(dev, "failed to initialize FW download %d\n", rc);
+ goto error_free_dev;
}
nfc_info(dev, "registered with nci successfully\n");
return priv;
+error_free_dev:
+ nci_free_device(priv->ndev);
error:
kfree(priv);
return ERR_PTR(rc);
@@ -167,6 +189,14 @@ void nfcmrvl_nci_unregister_dev(struct nfcmrvl_private *priv)
{
struct nci_dev *ndev = priv->ndev;
+ if (priv->ndev->nfc_dev->fw_download_in_progress)
+ nfcmrvl_fw_dnld_abort(priv);
+
+ nfcmrvl_fw_dnld_deinit(priv);
+
+ if (priv->config.reset_n_io)
+ devm_gpio_free(priv->dev, priv->config.reset_n_io);
+
nci_unregister_device(ndev);
nci_free_device(ndev);
kfree(priv);
@@ -187,6 +217,11 @@ int nfcmrvl_nci_recv_frame(struct nfcmrvl_private *priv, struct sk_buff *skb)
}
}
+ if (priv->ndev->nfc_dev->fw_download_in_progress) {
+ nfcmrvl_fw_dnld_recv_frame(priv, skb);
+ return 0;
+ }
+
if (test_bit(NFCMRVL_NCI_RUNNING, &priv->flags))
nci_recv_frame(priv->ndev, skb);
else {
@@ -201,10 +236,8 @@ EXPORT_SYMBOL_GPL(nfcmrvl_nci_recv_frame);
void nfcmrvl_chip_reset(struct nfcmrvl_private *priv)
{
- /*
- * This function does not take care if someone is using the device.
- * To be improved.
- */
+ /* Reset possible fault of previous session */
+ clear_bit(NFCMRVL_PHY_ERROR, &priv->flags);
if (priv->config.reset_n_io) {
nfc_info(priv->dev, "reset the chip\n");
@@ -215,7 +248,11 @@ void nfcmrvl_chip_reset(struct nfcmrvl_private *priv)
nfc_info(priv->dev, "no reset available on this interface\n");
}
-#ifdef CONFIG_OF
+void nfcmrvl_chip_halt(struct nfcmrvl_private *priv)
+{
+ if (priv->config.reset_n_io)
+ gpio_set_value(priv->config.reset_n_io, 0);
+}
int nfcmrvl_parse_dt(struct device_node *node,
struct nfcmrvl_platform_data *pdata)
@@ -239,19 +276,8 @@ int nfcmrvl_parse_dt(struct device_node *node,
return 0;
}
-
-#else
-
-int nfcmrvl_parse_dt(struct device_node *node,
- struct nfcmrvl_platform_data *pdata)
-{
- return -ENODEV;
-}
-
-#endif
EXPORT_SYMBOL_GPL(nfcmrvl_parse_dt);
MODULE_AUTHOR("Marvell International Ltd.");
-MODULE_DESCRIPTION("Marvell NFC driver ver " VERSION);
-MODULE_VERSION(VERSION);
+MODULE_DESCRIPTION("Marvell NFC driver");
MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-16 02:10:39 +0000