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-rw-r--r--drivers/nfc/microread/i2c.c5
-rw-r--r--drivers/nfc/nfcmrvl/i2c.c5
-rw-r--r--drivers/nfc/nxp-nci/i2c.c5
-rw-r--r--drivers/nfc/pn533/i2c.c5
-rw-r--r--drivers/nfc/pn544/i2c.c5
-rw-r--r--drivers/nfc/s3fwrn5/i2c.c24
-rw-r--r--drivers/nfc/st-nci/i2c.c5
-rw-r--r--drivers/nfc/st21nfca/i2c.c5
-rw-r--r--drivers/nfc/virtual_ncidev.c147
9 files changed, 92 insertions, 114 deletions
diff --git a/drivers/nfc/microread/i2c.c b/drivers/nfc/microread/i2c.c
index 5eaa18f81355..e72b358a2a12 100644
--- a/drivers/nfc/microread/i2c.c
+++ b/drivers/nfc/microread/i2c.c
@@ -231,8 +231,7 @@ static const struct nfc_phy_ops i2c_phy_ops = {
.disable = microread_i2c_disable,
};
-static int microread_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int microread_i2c_probe(struct i2c_client *client)
{
struct microread_i2c_phy *phy;
int r;
@@ -287,7 +286,7 @@ static struct i2c_driver microread_i2c_driver = {
.driver = {
.name = MICROREAD_I2C_DRIVER_NAME,
},
- .probe = microread_i2c_probe,
+ .probe_new = microread_i2c_probe,
.remove = microread_i2c_remove,
.id_table = microread_i2c_id,
};
diff --git a/drivers/nfc/nfcmrvl/i2c.c b/drivers/nfc/nfcmrvl/i2c.c
index 97600826af69..e74342b0b728 100644
--- a/drivers/nfc/nfcmrvl/i2c.c
+++ b/drivers/nfc/nfcmrvl/i2c.c
@@ -183,8 +183,7 @@ static int nfcmrvl_i2c_parse_dt(struct device_node *node,
return 0;
}
-static int nfcmrvl_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int nfcmrvl_i2c_probe(struct i2c_client *client)
{
const struct nfcmrvl_platform_data *pdata;
struct nfcmrvl_i2c_drv_data *drv_data;
@@ -259,7 +258,7 @@ static const struct i2c_device_id nfcmrvl_i2c_id_table[] = {
MODULE_DEVICE_TABLE(i2c, nfcmrvl_i2c_id_table);
static struct i2c_driver nfcmrvl_i2c_driver = {
- .probe = nfcmrvl_i2c_probe,
+ .probe_new = nfcmrvl_i2c_probe,
.id_table = nfcmrvl_i2c_id_table,
.remove = nfcmrvl_i2c_remove,
.driver = {
diff --git a/drivers/nfc/nxp-nci/i2c.c b/drivers/nfc/nxp-nci/i2c.c
index ec6446511984..d4c299be7949 100644
--- a/drivers/nfc/nxp-nci/i2c.c
+++ b/drivers/nfc/nxp-nci/i2c.c
@@ -263,8 +263,7 @@ static const struct acpi_gpio_mapping acpi_nxp_nci_gpios[] = {
{ }
};
-static int nxp_nci_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int nxp_nci_i2c_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct nxp_nci_i2c_phy *phy;
@@ -349,7 +348,7 @@ static struct i2c_driver nxp_nci_i2c_driver = {
.acpi_match_table = ACPI_PTR(acpi_id),
.of_match_table = of_nxp_nci_i2c_match,
},
- .probe = nxp_nci_i2c_probe,
+ .probe_new = nxp_nci_i2c_probe,
.id_table = nxp_nci_i2c_id_table,
.remove = nxp_nci_i2c_remove,
};
diff --git a/drivers/nfc/pn533/i2c.c b/drivers/nfc/pn533/i2c.c
index ddf3db286bad..1503a98f0405 100644
--- a/drivers/nfc/pn533/i2c.c
+++ b/drivers/nfc/pn533/i2c.c
@@ -163,8 +163,7 @@ static const struct pn533_phy_ops i2c_phy_ops = {
};
-static int pn533_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int pn533_i2c_probe(struct i2c_client *client)
{
struct pn533_i2c_phy *phy;
struct pn533 *priv;
@@ -260,7 +259,7 @@ static struct i2c_driver pn533_i2c_driver = {
.name = PN533_I2C_DRIVER_NAME,
.of_match_table = of_match_ptr(of_pn533_i2c_match),
},
- .probe = pn533_i2c_probe,
+ .probe_new = pn533_i2c_probe,
.id_table = pn533_i2c_id_table,
.remove = pn533_i2c_remove,
};
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
index 9e754abcfa2a..8b0d910bee06 100644
--- a/drivers/nfc/pn544/i2c.c
+++ b/drivers/nfc/pn544/i2c.c
@@ -866,8 +866,7 @@ static const struct acpi_gpio_mapping acpi_pn544_gpios[] = {
{ },
};
-static int pn544_hci_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int pn544_hci_i2c_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct pn544_i2c_phy *phy;
@@ -954,7 +953,7 @@ static struct i2c_driver pn544_hci_i2c_driver = {
.of_match_table = of_match_ptr(of_pn544_i2c_match),
.acpi_match_table = ACPI_PTR(pn544_hci_i2c_acpi_match),
},
- .probe = pn544_hci_i2c_probe,
+ .probe_new = pn544_hci_i2c_probe,
.id_table = pn544_hci_i2c_id_table,
.remove = pn544_hci_i2c_remove,
};
diff --git a/drivers/nfc/s3fwrn5/i2c.c b/drivers/nfc/s3fwrn5/i2c.c
index f824dc7099ce..2517ae71f9a4 100644
--- a/drivers/nfc/s3fwrn5/i2c.c
+++ b/drivers/nfc/s3fwrn5/i2c.c
@@ -177,8 +177,7 @@ static int s3fwrn5_i2c_parse_dt(struct i2c_client *client)
return 0;
}
-static int s3fwrn5_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int s3fwrn5_i2c_probe(struct i2c_client *client)
{
struct s3fwrn5_i2c_phy *phy;
int ret;
@@ -209,27 +208,21 @@ static int s3fwrn5_i2c_probe(struct i2c_client *client,
if (ret < 0)
return ret;
- phy->clk = devm_clk_get_optional(&client->dev, NULL);
- if (IS_ERR(phy->clk))
- return dev_err_probe(&client->dev, PTR_ERR(phy->clk),
- "failed to get clock\n");
-
/*
* S3FWRN5 depends on a clock input ("XI" pin) to function properly.
* Depending on the hardware configuration this could be an always-on
* oscillator or some external clock that must be explicitly enabled.
* Make sure the clock is running before starting S3FWRN5.
*/
- ret = clk_prepare_enable(phy->clk);
- if (ret < 0) {
- dev_err(&client->dev, "failed to enable clock: %d\n", ret);
- return ret;
- }
+ phy->clk = devm_clk_get_optional_enabled(&client->dev, NULL);
+ if (IS_ERR(phy->clk))
+ return dev_err_probe(&client->dev, PTR_ERR(phy->clk),
+ "failed to get clock\n");
ret = s3fwrn5_probe(&phy->common.ndev, phy, &phy->i2c_dev->dev,
&i2c_phy_ops);
if (ret < 0)
- goto disable_clk;
+ return ret;
ret = devm_request_threaded_irq(&client->dev, phy->i2c_dev->irq, NULL,
s3fwrn5_i2c_irq_thread_fn, IRQF_ONESHOT,
@@ -241,8 +234,6 @@ static int s3fwrn5_i2c_probe(struct i2c_client *client,
s3fwrn5_remove:
s3fwrn5_remove(phy->common.ndev);
-disable_clk:
- clk_disable_unprepare(phy->clk);
return ret;
}
@@ -251,7 +242,6 @@ static void s3fwrn5_i2c_remove(struct i2c_client *client)
struct s3fwrn5_i2c_phy *phy = i2c_get_clientdata(client);
s3fwrn5_remove(phy->common.ndev);
- clk_disable_unprepare(phy->clk);
}
static const struct i2c_device_id s3fwrn5_i2c_id_table[] = {
@@ -271,7 +261,7 @@ static struct i2c_driver s3fwrn5_i2c_driver = {
.name = S3FWRN5_I2C_DRIVER_NAME,
.of_match_table = of_match_ptr(of_s3fwrn5_i2c_match),
},
- .probe = s3fwrn5_i2c_probe,
+ .probe_new = s3fwrn5_i2c_probe,
.remove = s3fwrn5_i2c_remove,
.id_table = s3fwrn5_i2c_id_table,
};
diff --git a/drivers/nfc/st-nci/i2c.c b/drivers/nfc/st-nci/i2c.c
index 89fa24d71bef..6b5eed8a1fbe 100644
--- a/drivers/nfc/st-nci/i2c.c
+++ b/drivers/nfc/st-nci/i2c.c
@@ -195,8 +195,7 @@ static const struct acpi_gpio_mapping acpi_st_nci_gpios[] = {
{},
};
-static int st_nci_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int st_nci_i2c_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct st_nci_i2c_phy *phy;
@@ -284,7 +283,7 @@ static struct i2c_driver st_nci_i2c_driver = {
.of_match_table = of_match_ptr(of_st_nci_i2c_match),
.acpi_match_table = ACPI_PTR(st_nci_i2c_acpi_match),
},
- .probe = st_nci_i2c_probe,
+ .probe_new = st_nci_i2c_probe,
.id_table = st_nci_i2c_id_table,
.remove = st_nci_i2c_remove,
};
diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c
index 76b55986bcf8..55f7a2391bb1 100644
--- a/drivers/nfc/st21nfca/i2c.c
+++ b/drivers/nfc/st21nfca/i2c.c
@@ -487,8 +487,7 @@ static const struct acpi_gpio_mapping acpi_st21nfca_gpios[] = {
{},
};
-static int st21nfca_hci_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int st21nfca_hci_i2c_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct st21nfca_i2c_phy *phy;
@@ -598,7 +597,7 @@ static struct i2c_driver st21nfca_hci_i2c_driver = {
.of_match_table = of_match_ptr(of_st21nfca_i2c_match),
.acpi_match_table = ACPI_PTR(st21nfca_hci_i2c_acpi_match),
},
- .probe = st21nfca_hci_i2c_probe,
+ .probe_new = st21nfca_hci_i2c_probe,
.id_table = st21nfca_hci_i2c_id_table,
.remove = st21nfca_hci_i2c_remove,
};
diff --git a/drivers/nfc/virtual_ncidev.c b/drivers/nfc/virtual_ncidev.c
index 85c06dbb2c44..bb76c7c7cc82 100644
--- a/drivers/nfc/virtual_ncidev.c
+++ b/drivers/nfc/virtual_ncidev.c
@@ -13,12 +13,6 @@
#include <linux/wait.h>
#include <net/nfc/nci_core.h>
-enum virtual_ncidev_mode {
- virtual_ncidev_enabled,
- virtual_ncidev_disabled,
- virtual_ncidev_disabling,
-};
-
#define IOCTL_GET_NCIDEV_IDX 0
#define VIRTUAL_NFC_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
NFC_PROTO_MIFARE_MASK | \
@@ -27,12 +21,12 @@ enum virtual_ncidev_mode {
NFC_PROTO_ISO14443_B_MASK | \
NFC_PROTO_ISO15693_MASK)
-static enum virtual_ncidev_mode state;
-static DECLARE_WAIT_QUEUE_HEAD(wq);
-static struct miscdevice miscdev;
-static struct sk_buff *send_buff;
-static struct nci_dev *ndev;
-static DEFINE_MUTEX(nci_mutex);
+struct virtual_nci_dev {
+ struct nci_dev *ndev;
+ struct mutex mtx;
+ struct sk_buff *send_buff;
+ struct wait_queue_head wq;
+};
static int virtual_nci_open(struct nci_dev *ndev)
{
@@ -41,31 +35,34 @@ static int virtual_nci_open(struct nci_dev *ndev)
static int virtual_nci_close(struct nci_dev *ndev)
{
- mutex_lock(&nci_mutex);
- kfree_skb(send_buff);
- send_buff = NULL;
- mutex_unlock(&nci_mutex);
+ struct virtual_nci_dev *vdev = nci_get_drvdata(ndev);
+
+ mutex_lock(&vdev->mtx);
+ kfree_skb(vdev->send_buff);
+ vdev->send_buff = NULL;
+ mutex_unlock(&vdev->mtx);
return 0;
}
static int virtual_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
{
- mutex_lock(&nci_mutex);
- if (state != virtual_ncidev_enabled) {
- mutex_unlock(&nci_mutex);
+ struct virtual_nci_dev *vdev = nci_get_drvdata(ndev);
+
+ mutex_lock(&vdev->mtx);
+ if (vdev->send_buff) {
+ mutex_unlock(&vdev->mtx);
kfree_skb(skb);
- return 0;
+ return -1;
}
-
- if (send_buff) {
- mutex_unlock(&nci_mutex);
+ vdev->send_buff = skb_copy(skb, GFP_KERNEL);
+ if (!vdev->send_buff) {
+ mutex_unlock(&vdev->mtx);
kfree_skb(skb);
return -1;
}
- send_buff = skb_copy(skb, GFP_KERNEL);
- mutex_unlock(&nci_mutex);
- wake_up_interruptible(&wq);
+ mutex_unlock(&vdev->mtx);
+ wake_up_interruptible(&vdev->wq);
consume_skb(skb);
return 0;
@@ -80,29 +77,30 @@ static const struct nci_ops virtual_nci_ops = {
static ssize_t virtual_ncidev_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
+ struct virtual_nci_dev *vdev = file->private_data;
size_t actual_len;
- mutex_lock(&nci_mutex);
- while (!send_buff) {
- mutex_unlock(&nci_mutex);
- if (wait_event_interruptible(wq, send_buff))
+ mutex_lock(&vdev->mtx);
+ while (!vdev->send_buff) {
+ mutex_unlock(&vdev->mtx);
+ if (wait_event_interruptible(vdev->wq, vdev->send_buff))
return -EFAULT;
- mutex_lock(&nci_mutex);
+ mutex_lock(&vdev->mtx);
}
- actual_len = min_t(size_t, count, send_buff->len);
+ actual_len = min_t(size_t, count, vdev->send_buff->len);
- if (copy_to_user(buf, send_buff->data, actual_len)) {
- mutex_unlock(&nci_mutex);
+ if (copy_to_user(buf, vdev->send_buff->data, actual_len)) {
+ mutex_unlock(&vdev->mtx);
return -EFAULT;
}
- skb_pull(send_buff, actual_len);
- if (send_buff->len == 0) {
- consume_skb(send_buff);
- send_buff = NULL;
+ skb_pull(vdev->send_buff, actual_len);
+ if (vdev->send_buff->len == 0) {
+ consume_skb(vdev->send_buff);
+ vdev->send_buff = NULL;
}
- mutex_unlock(&nci_mutex);
+ mutex_unlock(&vdev->mtx);
return actual_len;
}
@@ -111,6 +109,7 @@ static ssize_t virtual_ncidev_write(struct file *file,
const char __user *buf,
size_t count, loff_t *ppos)
{
+ struct virtual_nci_dev *vdev = file->private_data;
struct sk_buff *skb;
skb = alloc_skb(count, GFP_KERNEL);
@@ -122,63 +121,58 @@ static ssize_t virtual_ncidev_write(struct file *file,
return -EFAULT;
}
- nci_recv_frame(ndev, skb);
+ nci_recv_frame(vdev->ndev, skb);
return count;
}
static int virtual_ncidev_open(struct inode *inode, struct file *file)
{
int ret = 0;
+ struct virtual_nci_dev *vdev;
- mutex_lock(&nci_mutex);
- if (state != virtual_ncidev_disabled) {
- mutex_unlock(&nci_mutex);
- return -EBUSY;
- }
-
- ndev = nci_allocate_device(&virtual_nci_ops, VIRTUAL_NFC_PROTOCOLS,
- 0, 0);
- if (!ndev) {
- mutex_unlock(&nci_mutex);
+ vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
+ if (!vdev)
+ return -ENOMEM;
+ vdev->ndev = nci_allocate_device(&virtual_nci_ops,
+ VIRTUAL_NFC_PROTOCOLS, 0, 0);
+ if (!vdev->ndev) {
+ kfree(vdev);
return -ENOMEM;
}
- ret = nci_register_device(ndev);
+ mutex_init(&vdev->mtx);
+ init_waitqueue_head(&vdev->wq);
+ file->private_data = vdev;
+ nci_set_drvdata(vdev->ndev, vdev);
+
+ ret = nci_register_device(vdev->ndev);
if (ret < 0) {
- nci_free_device(ndev);
- mutex_unlock(&nci_mutex);
+ nci_free_device(vdev->ndev);
+ mutex_destroy(&vdev->mtx);
+ kfree(vdev);
return ret;
}
- state = virtual_ncidev_enabled;
- mutex_unlock(&nci_mutex);
return 0;
}
static int virtual_ncidev_close(struct inode *inode, struct file *file)
{
- mutex_lock(&nci_mutex);
-
- if (state == virtual_ncidev_enabled) {
- state = virtual_ncidev_disabling;
- mutex_unlock(&nci_mutex);
+ struct virtual_nci_dev *vdev = file->private_data;
- nci_unregister_device(ndev);
- nci_free_device(ndev);
-
- mutex_lock(&nci_mutex);
- }
-
- state = virtual_ncidev_disabled;
- mutex_unlock(&nci_mutex);
+ nci_unregister_device(vdev->ndev);
+ nci_free_device(vdev->ndev);
+ mutex_destroy(&vdev->mtx);
+ kfree(vdev);
return 0;
}
-static long virtual_ncidev_ioctl(struct file *flip, unsigned int cmd,
+static long virtual_ncidev_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
- const struct nfc_dev *nfc_dev = ndev->nfc_dev;
+ struct virtual_nci_dev *vdev = file->private_data;
+ const struct nfc_dev *nfc_dev = vdev->ndev->nfc_dev;
void __user *p = (void __user *)arg;
if (cmd != IOCTL_GET_NCIDEV_IDX)
@@ -199,14 +193,15 @@ static const struct file_operations virtual_ncidev_fops = {
.unlocked_ioctl = virtual_ncidev_ioctl
};
+static struct miscdevice miscdev = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "virtual_nci",
+ .fops = &virtual_ncidev_fops,
+ .mode = 0600,
+};
+
static int __init virtual_ncidev_init(void)
{
- state = virtual_ncidev_disabled;
- miscdev.minor = MISC_DYNAMIC_MINOR;
- miscdev.name = "virtual_nci";
- miscdev.fops = &virtual_ncidev_fops;
- miscdev.mode = 0600;
-
return misc_register(&miscdev);
}
generated by cgit (git 2.34.1) at 2024-06-09 17:43:58 +0000