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-rw-r--r--drivers/nfc/microread/Kconfig2
-rw-r--r--drivers/nfc/microread/i2c.c36
-rw-r--r--drivers/nfc/microread/mei.c181
-rw-r--r--drivers/nfc/microread/microread.c17
-rw-r--r--drivers/nfc/microread/microread.h4
5 files changed, 43 insertions, 197 deletions
diff --git a/drivers/nfc/microread/Kconfig b/drivers/nfc/microread/Kconfig
index 572305be6e3..951d5542f6b 100644
--- a/drivers/nfc/microread/Kconfig
+++ b/drivers/nfc/microread/Kconfig
@@ -25,7 +25,7 @@ config NFC_MICROREAD_I2C
config NFC_MICROREAD_MEI
tristate "NFC Microread MEI support"
- depends on NFC_MICROREAD && INTEL_MEI_BUS_NFC
+ depends on NFC_MICROREAD && NFC_MEI_PHY
---help---
This module adds support for the mei interface of adapters using
Inside microread chipsets. Select this if your microread chipset
diff --git a/drivers/nfc/microread/i2c.c b/drivers/nfc/microread/i2c.c
index 101089495bf..df85cd3d9db 100644
--- a/drivers/nfc/microread/i2c.c
+++ b/drivers/nfc/microread/i2c.c
@@ -13,11 +13,11 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/delay.h>
@@ -95,12 +95,8 @@ static int check_crc(struct sk_buff *skb)
crc = crc ^ skb->data[i];
if (crc != skb->data[skb->len-1]) {
- pr_err(MICROREAD_I2C_DRIVER_NAME
- ": CRC error 0x%x != 0x%x\n",
- crc, skb->data[skb->len-1]);
-
- pr_info(DRIVER_DESC ": %s : BAD CRC\n", __func__);
-
+ pr_err("CRC error 0x%x != 0x%x\n", crc, skb->data[skb->len-1]);
+ pr_info("%s: BAD CRC\n", __func__);
return -EPERM;
}
@@ -160,18 +156,15 @@ static int microread_i2c_read(struct microread_i2c_phy *phy,
u8 tmp[MICROREAD_I2C_LLC_MAX_SIZE - 1];
struct i2c_client *client = phy->i2c_dev;
- pr_debug("%s\n", __func__);
-
r = i2c_master_recv(client, &len, 1);
if (r != 1) {
- dev_err(&client->dev, "cannot read len byte\n");
+ nfc_err(&client->dev, "cannot read len byte\n");
return -EREMOTEIO;
}
if ((len < MICROREAD_I2C_LLC_MIN_SIZE) ||
(len > MICROREAD_I2C_LLC_MAX_SIZE)) {
- dev_err(&client->dev, "invalid len byte\n");
- pr_err("invalid len byte\n");
+ nfc_err(&client->dev, "invalid len byte\n");
r = -EBADMSG;
goto flush;
}
@@ -228,7 +221,6 @@ static irqreturn_t microread_i2c_irq_thread_fn(int irq, void *phy_id)
}
client = phy->i2c_dev;
- dev_dbg(&client->dev, "IRQ\n");
if (phy->hard_fault != 0)
return IRQ_HANDLED;
@@ -263,20 +255,18 @@ static int microread_i2c_probe(struct i2c_client *client,
dev_get_platdata(&client->dev);
int r;
- dev_dbg(&client->dev, "client %p", client);
+ dev_dbg(&client->dev, "client %p\n", client);
if (!pdata) {
- dev_err(&client->dev, "client %p: missing platform data",
+ nfc_err(&client->dev, "client %p: missing platform data\n",
client);
return -EINVAL;
}
phy = devm_kzalloc(&client->dev, sizeof(struct microread_i2c_phy),
GFP_KERNEL);
- if (!phy) {
- dev_err(&client->dev, "Can't allocate microread phy");
+ if (!phy)
return -ENOMEM;
- }
i2c_set_clientdata(client, phy);
phy->i2c_dev = client;
@@ -285,7 +275,7 @@ static int microread_i2c_probe(struct i2c_client *client,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
MICROREAD_I2C_DRIVER_NAME, phy);
if (r) {
- dev_err(&client->dev, "Unable to register IRQ handler");
+ nfc_err(&client->dev, "Unable to register IRQ handler\n");
return r;
}
@@ -296,7 +286,7 @@ static int microread_i2c_probe(struct i2c_client *client,
if (r < 0)
goto err_irq;
- dev_info(&client->dev, "Probed");
+ nfc_info(&client->dev, "Probed");
return 0;
@@ -310,8 +300,6 @@ static int microread_i2c_remove(struct i2c_client *client)
{
struct microread_i2c_phy *phy = i2c_get_clientdata(client);
- dev_dbg(&client->dev, "%s\n", __func__);
-
microread_remove(phy->hdev);
free_irq(client->irq, phy);
diff --git a/drivers/nfc/microread/mei.c b/drivers/nfc/microread/mei.c
index eef38cfd812..2d1395be64a 100644
--- a/drivers/nfc/microread/mei.c
+++ b/drivers/nfc/microread/mei.c
@@ -13,205 +13,68 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/mei_bus.h>
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/nfc.h>
#include <net/nfc/hci.h>
#include <net/nfc/llc.h>
+#include "../mei_phy.h"
#include "microread.h"
#define MICROREAD_DRIVER_NAME "microread"
-#define MICROREAD_UUID UUID_LE(0x0bb17a78, 0x2a8e, 0x4c50, 0x94, \
- 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c)
-
-struct mei_nfc_hdr {
- u8 cmd;
- u8 status;
- u16 req_id;
- u32 reserved;
- u16 data_size;
-} __attribute__((packed));
-
-#define MEI_NFC_HEADER_SIZE 10
-#define MEI_NFC_MAX_HCI_PAYLOAD 300
-#define MEI_NFC_MAX_READ (MEI_NFC_HEADER_SIZE + MEI_NFC_MAX_HCI_PAYLOAD)
-
-struct microread_mei_phy {
- struct mei_device *mei_device;
- struct nfc_hci_dev *hdev;
-
- int powered;
-
- int hard_fault; /*
- * < 0 if hardware error occured (e.g. i2c err)
- * and prevents normal operation.
- */
-};
-
-#define MEI_DUMP_SKB_IN(info, skb) \
-do { \
- pr_debug("%s:\n", info); \
- print_hex_dump(KERN_DEBUG, "mei in : ", DUMP_PREFIX_OFFSET, \
- 16, 1, (skb)->data, (skb)->len, 0); \
-} while (0)
-
-#define MEI_DUMP_SKB_OUT(info, skb) \
-do { \
- pr_debug("%s:\n", info); \
- print_hex_dump(KERN_DEBUG, "mei out: ", DUMP_PREFIX_OFFSET, \
- 16, 1, (skb)->data, (skb)->len, 0); \
-} while (0)
-
-static int microread_mei_enable(void *phy_id)
-{
- struct microread_mei_phy *phy = phy_id;
-
- pr_info(DRIVER_DESC ": %s\n", __func__);
-
- phy->powered = 1;
-
- return 0;
-}
-
-static void microread_mei_disable(void *phy_id)
-{
- struct microread_mei_phy *phy = phy_id;
-
- pr_info(DRIVER_DESC ": %s\n", __func__);
-
- phy->powered = 0;
-}
-
-/*
- * Writing a frame must not return the number of written bytes.
- * It must return either zero for success, or <0 for error.
- * In addition, it must not alter the skb
- */
-static int microread_mei_write(void *phy_id, struct sk_buff *skb)
+static int microread_mei_probe(struct mei_cl_device *device,
+ const struct mei_cl_device_id *id)
{
- struct microread_mei_phy *phy = phy_id;
- int r;
-
- MEI_DUMP_SKB_OUT("mei frame sent", skb);
-
- r = mei_send(phy->device, skb->data, skb->len);
- if (r > 0)
- r = 0;
-
- return r;
-}
-
-static void microread_event_cb(struct mei_device *device, u32 events,
- void *context)
-{
- struct microread_mei_phy *phy = context;
-
- if (phy->hard_fault != 0)
- return;
-
- if (events & BIT(MEI_EVENT_RX)) {
- struct sk_buff *skb;
- int reply_size;
-
- skb = alloc_skb(MEI_NFC_MAX_READ, GFP_KERNEL);
- if (!skb)
- return;
-
- reply_size = mei_recv(device, skb->data, MEI_NFC_MAX_READ);
- if (reply_size < MEI_NFC_HEADER_SIZE) {
- kfree(skb);
- return;
- }
-
- skb_put(skb, reply_size);
- skb_pull(skb, MEI_NFC_HEADER_SIZE);
-
- MEI_DUMP_SKB_IN("mei frame read", skb);
-
- nfc_hci_recv_frame(phy->hdev, skb);
- }
-}
-
-static struct nfc_phy_ops mei_phy_ops = {
- .write = microread_mei_write,
- .enable = microread_mei_enable,
- .disable = microread_mei_disable,
-};
-
-static int microread_mei_probe(struct mei_device *device,
- const struct mei_id *id)
-{
- struct microread_mei_phy *phy;
+ struct nfc_mei_phy *phy;
int r;
pr_info("Probing NFC microread\n");
- phy = kzalloc(sizeof(struct microread_mei_phy), GFP_KERNEL);
+ phy = nfc_mei_phy_alloc(device);
if (!phy) {
pr_err("Cannot allocate memory for microread mei phy.\n");
return -ENOMEM;
}
- phy->device = device;
- mei_set_clientdata(device, phy);
-
- r = mei_register_event_cb(device, microread_event_cb, phy);
- if (r) {
- pr_err(MICROREAD_DRIVER_NAME ": event cb registration failed\n");
- goto err_out;
- }
-
r = microread_probe(phy, &mei_phy_ops, LLC_NOP_NAME,
MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD,
&phy->hdev);
- if (r < 0)
- goto err_out;
-
- return 0;
+ if (r < 0) {
+ nfc_mei_phy_free(phy);
-err_out:
- kfree(phy);
+ return r;
+ }
- return r;
+ return 0;
}
-static int microread_mei_remove(struct mei_device *device)
+static int microread_mei_remove(struct mei_cl_device *device)
{
- struct microread_mei_phy *phy = mei_get_clientdata(device);
-
- pr_info("Removing microread\n");
+ struct nfc_mei_phy *phy = mei_cl_get_drvdata(device);
microread_remove(phy->hdev);
- if (phy->powered)
- microread_mei_disable(phy);
-
- kfree(phy);
+ nfc_mei_phy_free(phy);
return 0;
}
-static struct mei_id microread_mei_tbl[] = {
- { MICROREAD_DRIVER_NAME, MICROREAD_UUID },
+static struct mei_cl_device_id microread_mei_tbl[] = {
+ { MICROREAD_DRIVER_NAME },
/* required last entry */
{ }
};
-
MODULE_DEVICE_TABLE(mei, microread_mei_tbl);
-static struct mei_driver microread_driver = {
+static struct mei_cl_driver microread_driver = {
.id_table = microread_mei_tbl,
.name = MICROREAD_DRIVER_NAME,
@@ -225,7 +88,7 @@ static int microread_mei_init(void)
pr_debug(DRIVER_DESC ": %s\n", __func__);
- r = mei_driver_register(&microread_driver);
+ r = mei_cl_driver_register(&microread_driver);
if (r) {
pr_err(MICROREAD_DRIVER_NAME ": driver registration failed\n");
return r;
@@ -236,7 +99,7 @@ static int microread_mei_init(void)
static void microread_mei_exit(void)
{
- mei_driver_unregister(&microread_driver);
+ mei_cl_driver_unregister(&microread_driver);
}
module_init(microread_mei_init);
diff --git a/drivers/nfc/microread/microread.c b/drivers/nfc/microread/microread.c
index 3420d833db1..f868333271a 100644
--- a/drivers/nfc/microread/microread.c
+++ b/drivers/nfc/microread/microread.c
@@ -13,11 +13,11 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
@@ -546,7 +546,7 @@ exit:
kfree_skb(skb);
if (r)
- pr_err("Failed to handle discovered target err=%d", r);
+ pr_err("Failed to handle discovered target err=%d\n", r);
}
static int microread_event_received(struct nfc_hci_dev *hdev, u8 gate,
@@ -650,13 +650,12 @@ int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
{
struct microread_info *info;
unsigned long quirks = 0;
- u32 protocols, se;
+ u32 protocols;
struct nfc_hci_init_data init_data;
int r;
info = kzalloc(sizeof(struct microread_info), GFP_KERNEL);
if (!info) {
- pr_err("Cannot allocate memory for microread_info.\n");
r = -ENOMEM;
goto err_info_alloc;
}
@@ -678,17 +677,15 @@ int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
NFC_PROTO_ISO14443_B_MASK |
NFC_PROTO_NFC_DEP_MASK;
- se = NFC_SE_UICC | NFC_SE_EMBEDDED;
-
info->hdev = nfc_hci_allocate_device(&microread_hci_ops, &init_data,
- quirks, protocols, se, llc_name,
+ quirks, protocols, llc_name,
phy_headroom +
MICROREAD_CMDS_HEADROOM,
phy_tailroom +
MICROREAD_CMD_TAILROOM,
phy_payload);
if (!info->hdev) {
- pr_err("Cannot allocate nfc hdev.\n");
+ pr_err("Cannot allocate nfc hdev\n");
r = -ENOMEM;
goto err_alloc_hdev;
}
diff --git a/drivers/nfc/microread/microread.h b/drivers/nfc/microread/microread.h
index 64b447a1c5b..f538641431a 100644
--- a/drivers/nfc/microread/microread.h
+++ b/drivers/nfc/microread/microread.h
@@ -12,9 +12,7 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __LOCAL_MICROREAD_H_
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 06:54:52 +0000