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-rw-r--r--drivers/nfc/st21nfca/i2c.c41
-rw-r--r--drivers/nfc/st21nfca/st21nfca.c32
-rw-r--r--drivers/nfc/st21nfca/st21nfca.h2
-rw-r--r--drivers/nfc/st21nfca/st21nfca_dep.c47
-rw-r--r--drivers/nfc/st21nfca/st21nfca_dep.h4
5 files changed, 58 insertions, 68 deletions
diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c
index 0ea756b..0572208 100644
--- a/drivers/nfc/st21nfca/i2c.c
+++ b/drivers/nfc/st21nfca/i2c.c
@@ -28,8 +28,8 @@
#include <linux/delay.h>
#include <linux/nfc.h>
#include <linux/firmware.h>
-#include <linux/unaligned/access_ok.h>
#include <linux/platform_data/st21nfca.h>
+#include <asm/unaligned.h>
#include <net/nfc/hci.h>
#include <net/nfc/llc.h>
@@ -72,7 +72,6 @@ struct st21nfca_i2c_phy {
struct nfc_hci_dev *hdev;
unsigned int gpio_ena;
- unsigned int gpio_irq;
unsigned int irq_polarity;
struct sk_buff *pending_skb;
@@ -531,20 +530,12 @@ static int st21nfca_hci_i2c_of_request_resources(struct i2c_client *client)
"clf_enable");
if (r) {
nfc_err(&client->dev, "Failed to request enable pin\n");
- return -ENODEV;
+ return r;
}
phy->gpio_ena = gpio;
- /* IRQ */
- r = irq_of_parse_and_map(pp, 0);
- if (r < 0) {
- nfc_err(&client->dev, "Unable to get irq, error: %d\n", r);
- return r;
- }
-
- phy->irq_polarity = irq_get_trigger_type(r);
- client->irq = r;
+ phy->irq_polarity = irq_get_trigger_type(client->irq);
return 0;
}
@@ -560,7 +551,6 @@ static int st21nfca_hci_i2c_request_resources(struct i2c_client *client)
struct st21nfca_nfc_platform_data *pdata;
struct st21nfca_i2c_phy *phy = i2c_get_clientdata(client);
int r;
- int irq;
pdata = client->dev.platform_data;
if (pdata == NULL) {
@@ -569,36 +559,18 @@ static int st21nfca_hci_i2c_request_resources(struct i2c_client *client)
}
/* store for later use */
- phy->gpio_irq = pdata->gpio_irq;
phy->gpio_ena = pdata->gpio_ena;
phy->irq_polarity = pdata->irq_polarity;
- r = devm_gpio_request_one(&client->dev, phy->gpio_irq, GPIOF_IN,
- "wake_up");
- if (r) {
- pr_err("%s : gpio_request failed\n", __FILE__);
- return -ENODEV;
- }
-
if (phy->gpio_ena > 0) {
r = devm_gpio_request_one(&client->dev, phy->gpio_ena,
GPIOF_OUT_INIT_HIGH, "clf_enable");
if (r) {
pr_err("%s : ena gpio_request failed\n", __FILE__);
- return -ENODEV;
+ return r;
}
}
- /* IRQ */
- irq = gpio_to_irq(phy->gpio_irq);
- if (irq < 0) {
- nfc_err(&client->dev,
- "Unable to get irq number for GPIO %d error %d\n",
- phy->gpio_irq, r);
- return -ENODEV;
- }
- client->irq = irq;
-
return 0;
}
@@ -656,7 +628,7 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client,
r = st21nfca_hci_platform_init(phy);
if (r < 0) {
nfc_err(&client->dev, "Unable to reboot st21nfca\n");
- return -ENODEV;
+ return r;
}
r = devm_request_threaded_irq(&client->dev, client->irq, NULL,
@@ -687,10 +659,13 @@ static int st21nfca_hci_i2c_remove(struct i2c_client *client)
return 0;
}
+#ifdef CONFIG_OF
static const struct of_device_id of_st21nfca_i2c_match[] = {
{ .compatible = "st,st21nfca_i2c", },
{}
};
+MODULE_DEVICE_TABLE(of, of_st21nfca_i2c_match);
+#endif
static struct i2c_driver st21nfca_hci_i2c_driver = {
.driver = {
diff --git a/drivers/nfc/st21nfca/st21nfca.c b/drivers/nfc/st21nfca/st21nfca.c
index a89e56c..f2596c8 100644
--- a/drivers/nfc/st21nfca/st21nfca.c
+++ b/drivers/nfc/st21nfca/st21nfca.c
@@ -77,10 +77,6 @@
((p & 0x0f) == (ST21NFCA_DM_PIPE_CREATED | ST21NFCA_DM_PIPE_OPEN))
#define ST21NFCA_NFC_MODE 0x03 /* NFC_MODE parameter*/
-#define ST21NFCA_EVT_FIELD_ON 0x11
-#define ST21NFCA_EVT_CARD_DEACTIVATED 0x12
-#define ST21NFCA_EVT_CARD_ACTIVATED 0x13
-#define ST21NFCA_EVT_FIELD_OFF 0x14
static DECLARE_BITMAP(dev_mask, ST21NFCA_NUM_DEVICES);
@@ -841,31 +837,11 @@ static int st21nfca_hci_check_presence(struct nfc_hci_dev *hdev,
static int st21nfca_hci_event_received(struct nfc_hci_dev *hdev, u8 gate,
u8 event, struct sk_buff *skb)
{
- int r;
- struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-
- pr_debug("hci event: %d\n", event);
+ pr_debug("hci event: %d gate: %x\n", event, gate);
- switch (event) {
- case ST21NFCA_EVT_CARD_ACTIVATED:
- if (gate == ST21NFCA_RF_CARD_F_GATE)
- info->dep_info.curr_nfc_dep_pni = 0;
- break;
- case ST21NFCA_EVT_CARD_DEACTIVATED:
- break;
- case ST21NFCA_EVT_FIELD_ON:
- break;
- case ST21NFCA_EVT_FIELD_OFF:
- break;
- case ST21NFCA_EVT_SEND_DATA:
- if (gate == ST21NFCA_RF_CARD_F_GATE) {
- r = st21nfca_tm_event_send_data(hdev, skb, gate);
- if (r < 0)
- return r;
- return 0;
- }
- info->dep_info.curr_nfc_dep_pni = 0;
- return 1;
+ switch (gate) {
+ case ST21NFCA_RF_CARD_F_GATE:
+ return st21nfca_dep_event_received(hdev, event, skb);
default:
return 1;
}
diff --git a/drivers/nfc/st21nfca/st21nfca.h b/drivers/nfc/st21nfca/st21nfca.h
index a0b77f1..7c2a852 100644
--- a/drivers/nfc/st21nfca/st21nfca.h
+++ b/drivers/nfc/st21nfca/st21nfca.h
@@ -85,6 +85,4 @@ struct st21nfca_hci_info {
#define ST21NFCA_RF_CARD_F_GATE 0x24
-#define ST21NFCA_EVT_SEND_DATA 0x10
-
#endif /* __LOCAL_ST21NFCA_H_ */
diff --git a/drivers/nfc/st21nfca/st21nfca_dep.c b/drivers/nfc/st21nfca/st21nfca_dep.c
index bfb6df5..8882181 100644
--- a/drivers/nfc/st21nfca/st21nfca_dep.c
+++ b/drivers/nfc/st21nfca/st21nfca_dep.c
@@ -49,6 +49,12 @@
#define ST21NFCA_LR_BITS_PAYLOAD_SIZE_254B 0x30
#define ST21NFCA_GB_BIT 0x02
+#define ST21NFCA_EVT_SEND_DATA 0x10
+#define ST21NFCA_EVT_FIELD_ON 0x11
+#define ST21NFCA_EVT_CARD_DEACTIVATED 0x12
+#define ST21NFCA_EVT_CARD_ACTIVATED 0x13
+#define ST21NFCA_EVT_FIELD_OFF 0x14
+
#define ST21NFCA_EVT_CARD_F_BITRATE 0x16
#define ST21NFCA_EVT_READER_F_BITRATE 0x13
#define ST21NFCA_PSL_REQ_SEND_SPEED(brs) (brs & 0x38)
@@ -372,8 +378,8 @@ exit:
return r;
}
-int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev, struct sk_buff *skb,
- u8 gate)
+static int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev,
+ struct sk_buff *skb)
{
u8 cmd0, cmd1;
int r;
@@ -400,7 +406,42 @@ int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev, struct sk_buff *skb,
}
return r;
}
-EXPORT_SYMBOL(st21nfca_tm_event_send_data);
+
+/*
+ * Returns:
+ * <= 0: driver handled the event, skb consumed
+ * 1: driver does not handle the event, please do standard processing
+ */
+int st21nfca_dep_event_received(struct nfc_hci_dev *hdev,
+ u8 event, struct sk_buff *skb)
+{
+ int r = 0;
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+
+ pr_debug("dep event: %d\n", event);
+
+ switch (event) {
+ case ST21NFCA_EVT_CARD_ACTIVATED:
+ info->dep_info.curr_nfc_dep_pni = 0;
+ break;
+ case ST21NFCA_EVT_CARD_DEACTIVATED:
+ break;
+ case ST21NFCA_EVT_FIELD_ON:
+ break;
+ case ST21NFCA_EVT_FIELD_OFF:
+ break;
+ case ST21NFCA_EVT_SEND_DATA:
+ r = st21nfca_tm_event_send_data(hdev, skb);
+ if (r < 0)
+ return r;
+ return 0;
+ default:
+ return 1;
+ }
+ kfree_skb(skb);
+ return r;
+}
+EXPORT_SYMBOL(st21nfca_dep_event_received);
static void st21nfca_im_send_psl_req(struct nfc_hci_dev *hdev, u8 did, u8 bsi,
u8 bri, u8 lri)
diff --git a/drivers/nfc/st21nfca/st21nfca_dep.h b/drivers/nfc/st21nfca/st21nfca_dep.h
index ca213de..baf4664 100644
--- a/drivers/nfc/st21nfca/st21nfca_dep.h
+++ b/drivers/nfc/st21nfca/st21nfca_dep.h
@@ -32,8 +32,8 @@ struct st21nfca_dep_info {
u8 lri;
} __packed;
-int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev, struct sk_buff *skb,
- u8 gate);
+int st21nfca_dep_event_received(struct nfc_hci_dev *hdev,
+ u8 event, struct sk_buff *skb);
int st21nfca_tm_send_dep_res(struct nfc_hci_dev *hdev, struct sk_buff *skb);
int st21nfca_im_send_atr_req(struct nfc_hci_dev *hdev, u8 *gb, size_t gb_len);
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