This patch adds support for Intel's FieldsPeak NFC solution.
The device is enumerated with ACPI and platform init.
In order to implement the driver the nci_core_conn_create was
modified in order to report the ID of the newly created connection.
Fixed a bug that prevented to close a connection from the driver while
the dev was down.
The max packet size of a connection can be retrieved by the driver.
The init, reset NCI functions can be called from the driver. The driver
can also send command to the device using the NFC subsystem using the
request - response blocking method.
Robert Dolca (8):
NFC: NCI: Allow connection close with dev down
NFC: NCI: Exporting NFC command and data send API
NFC: NCI: Adds NCI init and reset API for drivers
NFC: NCI: Add a special nci_request for driver
NFC: NCI: Don't call setup if previous NCI request failed
NFC: NCI: Add function to get max packet size for conn
NFC: NCI: Adds a way to get the new connection ID
NFC: Add Intel FieldsPeak NFC solution driver
drivers/nfc/Kconfig | 1 +
drivers/nfc/fdp/Kconfig | 22 ++
drivers/nfc/fdp/Makefile | 10 +
drivers/nfc/fdp/cmd.c | 196 +++++++++++++++
drivers/nfc/fdp/core.c | 503 +++++++++++++++++++++++++++++++++++++
drivers/nfc/fdp/fdp.h | 115 +++++++++
drivers/nfc/fdp/i2c.c | 454 +++++++++++++++++++++++++++++++++
drivers/nfc/fdp/ntf.c | 68 +++++
drivers/nfc/fdp/rsp.c | 117 +++++++++
drivers/nfc/st21nfcb/st21nfcb_se.c | 2 +-
include/linux/platform_data/fdp.h | 33 +++
include/net/nfc/nci_core.h | 18 +-
net/nfc/nci/core.c | 53 +++-
net/nfc/nci/data.c | 13 +
net/nfc/nci/rsp.c | 6 +
15 files changed, 1601 insertions(+), 10 deletions(-)
create mode 100644 drivers/nfc/fdp/Kconfig
create mode 100644 drivers/nfc/fdp/Makefile
create mode 100644 drivers/nfc/fdp/cmd.c
create mode 100644 drivers/nfc/fdp/core.c
create mode 100644 drivers/nfc/fdp/fdp.h
create mode 100644 drivers/nfc/fdp/i2c.c
create mode 100644 drivers/nfc/fdp/ntf.c
create mode 100644 drivers/nfc/fdp/rsp.c
create mode 100644 include/linux/platform_data/fdp.h
--
1.9.1
By calling __nci_request instead of nci_request allows the driver to use
the function while initializing the device (setup stage)
Signed-off-by: Robert Dolca <[email protected]>
---
net/nfc/nci/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 9575a18..c4dd5d8 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -558,7 +558,7 @@ static void nci_core_conn_close_req(struct nci_dev *ndev, unsigned long opt)
int nci_core_conn_close(struct nci_dev *ndev, u8 conn_id)
{
- return nci_request(ndev, nci_core_conn_close_req, conn_id,
+ return __nci_request(ndev, nci_core_conn_close_req, conn_id,
msecs_to_jiffies(NCI_CMD_TIMEOUT));
}
EXPORT_SYMBOL(nci_core_conn_close);
--
1.9.1
nci_send_cmd was exported in order to send commands to the device from
the driver. For the firmware update the driver may use nci_send_data.
Signed-off-by: Robert Dolca <[email protected]>
---
net/nfc/nci/core.c | 1 +
net/nfc/nci/data.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index c4dd5d8..9605b9c 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -1153,6 +1153,7 @@ int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload)
return 0;
}
+EXPORT_SYMBOL(nci_send_cmd);
/* ---- NCI TX Data worker thread ---- */
diff --git a/net/nfc/nci/data.c b/net/nfc/nci/data.c
index 566466d..83acd18 100644
--- a/net/nfc/nci/data.c
+++ b/net/nfc/nci/data.c
@@ -203,6 +203,7 @@ free_exit:
exit:
return rc;
}
+EXPORT_SYMBOL(nci_send_data);
/* ----------------- NCI RX Data ----------------- */
--
1.9.1
In order to communicate with the device during the setup
phase, the driver may need to initialize the device. After
the setup is done the driver should reset the device to leave
it in the same state that it was before the setup function
call.
Signed-off-by: Robert Dolca <[email protected]>
---
include/net/nfc/nci_core.h | 2 ++
net/nfc/nci/core.c | 14 ++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 34a6e09..4358d0a 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -314,6 +314,8 @@ static inline void *nci_get_drvdata(struct nci_dev *ndev)
return ndev->driver_data;
}
+int nci_init(struct nci_dev *ndev);
+int nci_reset(struct nci_dev *ndev);
void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb);
void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb);
void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb);
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 9605b9c..317b94b 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -458,6 +458,20 @@ static int nci_dev_down(struct nfc_dev *nfc_dev)
return nci_close_device(ndev);
}
+int nci_init(struct nci_dev *ndev)
+{
+ return __nci_request(ndev, nci_init_req, 0,
+ msecs_to_jiffies(NCI_INIT_TIMEOUT));
+}
+EXPORT_SYMBOL(nci_init);
+
+int nci_reset(struct nci_dev *ndev)
+{
+ return __nci_request(ndev, nci_reset_req, 0,
+ msecs_to_jiffies(NCI_RESET_TIMEOUT));
+}
+EXPORT_SYMBOL(nci_reset);
+
int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val)
{
struct nci_set_config_param param;
--
1.9.1
This patch adds nci_request_driver and nci_req_complete_driver
as a wrapper for __nci_request. When nci_req_complete_driver is
called it also sets cmd_cnt to 1. This is done because the response is not
sent to the NFC subsystem so cmd_cnt is not decremented there.
nci_send_cmd was previously exported in order to send commands to
the device from the driver. It shouldn't be used without
nci_req_complete_driver because cmd_cnt will have the wrong value.
Signed-off-by: Robert Dolca <[email protected]>
---
include/net/nfc/nci_core.h | 4 ++++
net/nfc/nci/core.c | 19 +++++++++++++++++++
2 files changed, 23 insertions(+)
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 4358d0a..42ec342 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -333,6 +333,10 @@ void nci_clear_target_list(struct nci_dev *ndev);
#define NCI_REQ_CANCELED 2
void nci_req_complete(struct nci_dev *ndev, int result);
+int nci_request_driver(struct nci_dev *ndev,
+ void (*req)(struct nci_dev *ndev, unsigned long opt),
+ unsigned long opt, __u32 timeout);
+void nci_req_complete_driver(struct nci_dev *ndev, int result);
struct nci_conn_info *nci_get_conn_info_by_conn_id(struct nci_dev *ndev,
int conn_id);
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 317b94b..1a449ac 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -74,6 +74,17 @@ void nci_req_complete(struct nci_dev *ndev, int result)
}
}
+void nci_req_complete_driver(struct nci_dev *ndev, int result)
+{
+ nci_req_complete(ndev, result);
+
+ /* trigger the next cmd */
+ atomic_set(&ndev->cmd_cnt, 1);
+ if (!skb_queue_empty(&ndev->cmd_q))
+ queue_work(ndev->cmd_wq, &ndev->cmd_work);
+}
+EXPORT_SYMBOL(nci_req_complete_driver);
+
static void nci_req_cancel(struct nci_dev *ndev, int err)
{
if (ndev->req_status == NCI_REQ_PEND) {
@@ -127,6 +138,14 @@ static int __nci_request(struct nci_dev *ndev,
return rc;
}
+int nci_request_driver(struct nci_dev *ndev,
+ void (*req)(struct nci_dev *ndev, unsigned long opt),
+ unsigned long opt, __u32 timeout)
+{
+ return __nci_request(ndev, req, opt, timeout);
+}
+EXPORT_SYMBOL(nci_request_driver);
+
inline int nci_request(struct nci_dev *ndev,
void (*req)(struct nci_dev *ndev,
unsigned long opt),
--
1.9.1
If the previous nci_request (NCI reset) failed the setup function
was being called anyway. It shouldn't be called if the reset failed.
The result of the setup function is taken into consideration. If it
fails the init should fail.
Signed-off-by: Robert Dolca <[email protected]>
---
net/nfc/nci/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 1a449ac..d2e7adf 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -365,8 +365,8 @@ static int nci_open_device(struct nci_dev *ndev)
rc = __nci_request(ndev, nci_reset_req, 0,
msecs_to_jiffies(NCI_RESET_TIMEOUT));
- if (ndev->ops->setup)
- ndev->ops->setup(ndev);
+ if (!rc && ndev->ops->setup)
+ rc = ndev->ops->setup(ndev);
if (!rc) {
rc = __nci_request(ndev, nci_init_req, 0,
--
1.9.1
FDP driver needs to send the firmware as regular packets
(not fragmented). That's whay the driver should have a way to
get the max packet size for a given connection.
Signed-off-by: Robert Dolca <[email protected]>
---
include/net/nfc/nci_core.h | 1 +
net/nfc/nci/data.c | 12 ++++++++++++
2 files changed, 13 insertions(+)
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 42ec342..d79f90e 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -321,6 +321,7 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb);
void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb);
int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload);
int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb);
+__u8 nci_conn_max_data_pkt_payload_size(struct nci_dev *ndev, __u8 conn_id);
void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb,
__u8 conn_id, int err);
void nci_hci_data_received_cb(void *context, struct sk_buff *skb, int err);
diff --git a/net/nfc/nci/data.c b/net/nfc/nci/data.c
index 83acd18..056f841 100644
--- a/net/nfc/nci/data.c
+++ b/net/nfc/nci/data.c
@@ -90,6 +90,18 @@ static inline void nci_push_data_hdr(struct nci_dev *ndev,
nci_pbf_set((__u8 *)hdr, pbf);
}
+__u8 nci_conn_max_data_pkt_payload_size(struct nci_dev *ndev, __u8 conn_id)
+{
+ struct nci_conn_info *conn_info;
+
+ conn_info = nci_get_conn_info_by_conn_id(ndev, conn_id);
+ if (!conn_info)
+ return 0;
+
+ return conn_info->max_pkt_payload_len;
+}
+EXPORT_SYMBOL(nci_conn_max_data_pkt_payload_size);
+
static int nci_queue_tx_data_frags(struct nci_dev *ndev,
__u8 conn_id,
struct sk_buff *skb) {
--
1.9.1
nci_core_conn_create not has a new parameter so it can return
the ID of the new connection. Also not you can't call nci_core_conn_create
without waiting the answer for the previous call.
Signed-off-by: Robert Dolca <[email protected]>
---
drivers/nfc/st21nfcb/st21nfcb_se.c | 2 +-
include/net/nfc/nci_core.h | 11 ++++++++---
net/nfc/nci/core.c | 13 ++++++++++---
net/nfc/nci/rsp.c | 6 ++++++
4 files changed, 25 insertions(+), 7 deletions(-)
diff --git a/drivers/nfc/st21nfcb/st21nfcb_se.c b/drivers/nfc/st21nfcb/st21nfcb_se.c
index 7c82e9d..8694675 100644
--- a/drivers/nfc/st21nfcb/st21nfcb_se.c
+++ b/drivers/nfc/st21nfcb/st21nfcb_se.c
@@ -515,7 +515,7 @@ static int st21nfcb_hci_network_init(struct nci_dev *ndev)
r = nci_core_conn_create(ndev, NCI_DESTINATION_NFCEE, 1,
sizeof(struct core_conn_create_dest_spec_params) +
sizeof(struct dest_spec_params),
- dest_params);
+ dest_params, NULL);
if (r != NCI_STATUS_OK)
goto free_dest_params;
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index d79f90e..a331755 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -240,6 +240,11 @@ struct nci_dev {
/* Save RF Discovery ID or NFCEE ID under conn_create */
__u8 cur_id;
+ /* Pointer to the address where the next connection ID
+ * will be stored */
+ __u8 *next_conn_id;
+ __u8 conn_busy;
+
/* stored during nci_data_exchange */
struct sk_buff *rx_data_reassembly;
@@ -266,9 +271,9 @@ int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val);
int nci_nfcee_discover(struct nci_dev *ndev, u8 action);
int nci_nfcee_mode_set(struct nci_dev *ndev, u8 nfcee_id, u8 nfcee_mode);
int nci_core_conn_create(struct nci_dev *ndev, u8 destination_type,
- u8 number_destination_params,
- size_t params_len,
- struct core_conn_create_dest_spec_params *params);
+ u8 number_destination_params, size_t params_len,
+ struct core_conn_create_dest_spec_params *params,
+ u8 *conn_id);
int nci_core_conn_close(struct nci_dev *ndev, u8 conn_id);
struct nci_hci_dev *nci_hci_allocate(struct nci_dev *ndev);
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index d2e7adf..aaa56f1 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -554,14 +554,19 @@ static void nci_core_conn_create_req(struct nci_dev *ndev, unsigned long opt)
}
int nci_core_conn_create(struct nci_dev *ndev, u8 destination_type,
- u8 number_destination_params,
- size_t params_len,
- struct core_conn_create_dest_spec_params *params)
+ u8 number_destination_params, size_t params_len,
+ struct core_conn_create_dest_spec_params *params,
+ u8 *conn_id)
{
int r;
struct nci_core_conn_create_cmd *cmd;
struct core_conn_create_data data;
+ if (ndev->conn_busy)
+ return -EBUSY;
+
+ ndev->conn_busy = 1;
+
data.length = params_len + sizeof(struct nci_core_conn_create_cmd);
cmd = kzalloc(data.length, GFP_KERNEL);
if (!cmd)
@@ -573,11 +578,13 @@ int nci_core_conn_create(struct nci_dev *ndev, u8 destination_type,
data.cmd = cmd;
ndev->cur_id = params->value[DEST_SPEC_PARAMS_ID_INDEX];
+ ndev->next_conn_id = conn_id;
r = __nci_request(ndev, nci_core_conn_create_req,
(unsigned long)&data,
msecs_to_jiffies(NCI_CMD_TIMEOUT));
kfree(cmd);
+ ndev->conn_busy = 0;
return r;
}
EXPORT_SYMBOL(nci_core_conn_create);
diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c
index 02486bc..9aa9de2 100644
--- a/net/nfc/nci/rsp.c
+++ b/net/nfc/nci/rsp.c
@@ -244,6 +244,12 @@ static void nci_core_conn_create_rsp_packet(struct nci_dev *ndev,
conn_info->id = ndev->cur_id;
conn_info->conn_id = rsp->conn_id;
+ /* Set the conn ID to the address provided by the caller */
+ if (ndev->next_conn_id) {
+ *ndev->next_conn_id = rsp->conn_id;
+ ndev->next_conn_id = NULL;
+ }
+
/* Note: data_exchange_cb and data_exchange_cb_context need to
* be specify out of nci_core_conn_create_rsp_packet
*/
--
1.9.1
The device can be enumerated using ACPI using the id INT339A.
The 1st GPIO is the IRQ and the 2nd is the RESET pin.
I can be also enumerated using platform init.
Signed-off-by: Robert Dolca <[email protected]>
---
drivers/nfc/Kconfig | 1 +
drivers/nfc/fdp/Kconfig | 22 ++
drivers/nfc/fdp/Makefile | 10 +
drivers/nfc/fdp/cmd.c | 196 +++++++++++++++
drivers/nfc/fdp/core.c | 503 ++++++++++++++++++++++++++++++++++++++
drivers/nfc/fdp/fdp.h | 115 +++++++++
drivers/nfc/fdp/i2c.c | 454 ++++++++++++++++++++++++++++++++++
drivers/nfc/fdp/ntf.c | 68 ++++++
drivers/nfc/fdp/rsp.c | 117 +++++++++
include/linux/platform_data/fdp.h | 33 +++
10 files changed, 1519 insertions(+)
create mode 100644 drivers/nfc/fdp/Kconfig
create mode 100644 drivers/nfc/fdp/Makefile
create mode 100644 drivers/nfc/fdp/cmd.c
create mode 100644 drivers/nfc/fdp/core.c
create mode 100644 drivers/nfc/fdp/fdp.h
create mode 100644 drivers/nfc/fdp/i2c.c
create mode 100644 drivers/nfc/fdp/ntf.c
create mode 100644 drivers/nfc/fdp/rsp.c
create mode 100644 include/linux/platform_data/fdp.h
diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig
index 6ee2e8d..302fe59 100644
--- a/drivers/nfc/Kconfig
+++ b/drivers/nfc/Kconfig
@@ -68,6 +68,7 @@ config NFC_PORT100
If unsure, say N.
+source "drivers/nfc/fdp/Kconfig"
source "drivers/nfc/pn544/Kconfig"
source "drivers/nfc/microread/Kconfig"
source "drivers/nfc/nfcmrvl/Kconfig"
diff --git a/drivers/nfc/fdp/Kconfig b/drivers/nfc/fdp/Kconfig
new file mode 100644
index 0000000..130a235
--- /dev/null
+++ b/drivers/nfc/fdp/Kconfig
@@ -0,0 +1,22 @@
+config NFC_FDP
+ tristate "Intel FDP NFC driver"
+ depends on NFC_NCI
+ select CRC_CCITT
+ default n
+ ---help---
+ Intel FDP core driver.
+ This is a driver based on the NCI NFC kernel layers.
+
+ To compile this driver as a module, choose m here. The module will
+ be called pn547.
+ Say N if unsure.
+
+config NFC_FDP_I2C
+ tristate "NFC FDP i2c support"
+ depends on NFC_FDP && I2C
+ ---help---
+ This module adds support for the Intel FDP i2c interface.
+ Select this if your platform is using the i2c bus.
+
+ If you choose to build a module, it'll be called fdp_i2c.
+ Say N if unsure.
diff --git a/drivers/nfc/fdp/Makefile b/drivers/nfc/fdp/Makefile
new file mode 100644
index 0000000..caad636
--- /dev/null
+++ b/drivers/nfc/fdp/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for FDP NCI based NFC driver
+#
+
+obj-$(CONFIG_NFC_FDP) += fdp.o
+obj-$(CONFIG_NFC_FDP_I2C) += fdp_i2c.o
+
+fdp-objs = core.o cmd.o ntf.o rsp.o
+fdp_i2c-objs = i2c.o
+
diff --git a/drivers/nfc/fdp/cmd.c b/drivers/nfc/fdp/cmd.c
new file mode 100644
index 0000000..1b78602
--- /dev/null
+++ b/drivers/nfc/fdp/cmd.c
@@ -0,0 +1,196 @@
+/* -------------------------------------------------------------------------
+ * Copyright (C) 2014-2016, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * ------------------------------------------------------------------------- */
+
+#include <linux/module.h>
+#include <linux/nfc.h>
+#include <linux/i2c.h>
+#include <linux/firmware.h>
+#include <net/nfc/nci_core.h>
+
+#include "fdp.h"
+
+#define NCI_OP_PROP_PATCH_CMD nci_opcode_pack(NCI_GID_PROP, 0x08)
+#define NCI_OP_PROP_SET_PRODUCTION_DATA_CMD nci_opcode_pack(NCI_GID_PROP, 0x23)
+#define NCI_OP_CORE_GET_CONFIG_CMD nci_opcode_pack(NCI_GID_CORE, 0x03)
+static u8 nci_core_get_config_otp_ram_version[5] = {
+ 0x04,
+ NCI_PARAM_ID_FW_RAM_VERSION,
+ NCI_PARAM_ID_FW_OTP_VERSION,
+ NCI_PARAM_ID_OTP_LIMITED_VERSION,
+ NCI_PARAM_ID_KEY_INDEX_ID
+};
+
+#define NCI_GET_VERSION_TIMEOUT 8000
+#define NCI_PATCH_REQUEST_TIMEOUT 8000
+
+struct production_data {
+ u8 len;
+ char *data;
+};
+
+static void fdp_nci_get_version_req(struct nci_dev *ndev, unsigned long opt)
+{
+ fdp_nci_send_cmd(ndev, NCI_OP_CORE_GET_CONFIG_CMD,
+ sizeof(nci_core_get_config_otp_ram_version),
+ &nci_core_get_config_otp_ram_version);
+}
+
+static void fdp_nci_set_production_data_req(struct nci_dev *ndev,
+ unsigned long opt)
+{
+ struct production_data *pd = (struct production_data *)opt;
+
+ fdp_nci_send_cmd(ndev, NCI_OP_PROP_SET_PRODUCTION_DATA_CMD,
+ pd->len, pd->data);
+}
+
+static void fdp_nci_patch_req(struct nci_dev *ndev, unsigned long opt)
+{
+ u8 type = (u8) opt;
+
+ fdp_nci_send_cmd(ndev, NCI_OP_PROP_PATCH_CMD, sizeof(type), &type);
+}
+
+int fdp_nci_create_conn(struct nci_dev *ndev)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+ struct core_conn_create_dest_spec_params param;
+
+ param.type = 0xA0;
+ param.length = 0x00;
+
+ return nci_core_conn_create(info->ndev, 0xC2, 1, sizeof(param), ¶m,
+ &info->conn_id);
+}
+
+int fdp_nci_close_conn(struct nci_dev *ndev)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ return nci_core_conn_close(info->ndev, info->conn_id);
+}
+
+int fdp_nci_get_versions(struct nci_dev *ndev)
+{
+ return nci_request_driver(ndev, fdp_nci_get_version_req, 0,
+ msecs_to_jiffies(NCI_GET_VERSION_TIMEOUT));
+}
+
+int fdp_nci_patch_start(struct nci_dev *ndev, u8 type)
+{
+ return nci_request_driver(ndev, fdp_nci_patch_req, (unsigned long) type,
+ msecs_to_jiffies(NCI_PATCH_REQUEST_TIMEOUT));
+}
+
+int fdp_nci_patch_end(struct nci_dev *ndev)
+{
+ return nci_request_driver(ndev, fdp_nci_patch_req, NCI_PATCH_TYPE_EOT,
+ msecs_to_jiffies(NCI_PATCH_REQUEST_TIMEOUT));
+}
+
+int fdp_nci_set_production_data(struct nci_dev *ndev, u8 len, char *data)
+{
+ struct production_data pd;
+
+ pd.len = len;
+ pd.data = data;
+
+ return nci_request_driver(ndev, fdp_nci_set_production_data_req,
+ (unsigned long) &pd,
+ msecs_to_jiffies(NCI_PATCH_REQUEST_TIMEOUT));
+}
+
+int fdp_nci_set_clock(struct nci_dev *ndev, u8 clock_type, u32 clock_freq)
+{
+ u32 fc = 13560;
+ u32 nd, num, delta;
+ char data[9];
+
+ nd = (24 * fc) / clock_freq;
+ delta = 24 * fc - nd * clock_freq;
+ num = (32768 * delta) / clock_freq;
+
+ data[0] = 0x00;
+ data[1] = 0x00;
+ data[2] = 0x00;
+
+ data[3] = 0x10;
+ data[4] = 0x04;
+ data[5] = num & 0xFF;
+ data[6] = (num >> 8) & 0xff;
+ data[7] = nd;
+ data[8] = clock_type;
+
+ return fdp_nci_set_production_data(ndev, 9, data);
+}
+
+static void fdp_nci_send_patch_cb(struct nci_dev *ndev)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ info->setup_patch_sent = 1;
+ wake_up(&info->setup_wq);
+}
+
+int fdp_nci_send_patch(struct nci_dev *ndev, u8 type)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+ const struct firmware *fw;
+ struct sk_buff *skb;
+ unsigned long len;
+ u8 max_size, payload_size;
+ int rc = 0;
+
+ if ((type == NCI_PATCH_TYPE_OTP && !info->otp_patch) ||
+ (type == NCI_PATCH_TYPE_RAM && !info->ram_patch))
+ return -EINVAL;
+
+ if (type == NCI_PATCH_TYPE_OTP)
+ fw = info->otp_patch;
+ else
+ fw = info->ram_patch;
+
+ max_size = nci_conn_max_data_pkt_payload_size(ndev, info->conn_id);
+ if (!max_size)
+ return -EINVAL;
+
+ len = fw->size;
+
+ fdp_nci_set_data_pkt_counter(ndev, fdp_nci_send_patch_cb,
+ DIV_ROUND_UP(fw->size, max_size));
+
+ while (len) {
+
+ payload_size = min_t(unsigned long, (unsigned long) max_size,
+ len);
+
+ skb = nci_skb_alloc(ndev, (NCI_CTRL_HDR_SIZE + payload_size),
+ GFP_KERNEL);
+ skb_reserve(skb, NCI_CTRL_HDR_SIZE);
+
+ memcpy(skb_put(skb, payload_size), fw->data + (fw->size - len),
+ payload_size);
+
+ rc = nci_send_data(ndev, info->conn_id, skb);
+
+ if (rc) {
+ fdp_nci_set_data_pkt_counter(ndev, NULL, 0);
+ return rc;
+ }
+
+ len -= payload_size;
+ }
+
+ return rc;
+}
diff --git a/drivers/nfc/fdp/core.c b/drivers/nfc/fdp/core.c
new file mode 100644
index 0000000..ca0a7cb
--- /dev/null
+++ b/drivers/nfc/fdp/core.c
@@ -0,0 +1,503 @@
+/* -------------------------------------------------------------------------
+ * Copyright (C) 2014-2016, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * ------------------------------------------------------------------------- */
+
+#include <linux/module.h>
+#include <linux/nfc.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <net/nfc/nci_core.h>
+
+#include "fdp.h"
+
+#define FDP_OTP_PATCH_NAME "otp.bin"
+#define FDP_RAM_PATCH_NAME "ram.bin"
+#define FDP_FW_HEADER_SIZE 576
+
+int fdp_nci_open(struct nci_dev *ndev)
+{
+ int r;
+ struct fdp_nci_info *info;
+
+ info = nci_get_drvdata(ndev);
+ pr_debug("%s\n", __func__);
+
+ mutex_lock(&info->lock);
+
+ skb_queue_purge(&info->rx_q);
+ r = info->phy_ops->enable(info->phy);
+ if (r == 0)
+ info->state = FDP_ST_RESET;
+
+ mutex_unlock(&info->lock);
+ return r;
+}
+
+int fdp_nci_close(struct nci_dev *ndev)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ pr_debug("%s\n", __func__);
+ skb_queue_purge(&info->rx_q);
+
+ return 0;
+}
+
+int fdp_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ pr_debug("%s\n", __func__);
+
+ if (atomic_dec_and_test(&info->data_pkt_counter))
+ info->data_pkt_counter_cb(ndev);
+
+ return info->phy_ops->write(info->phy, skb);
+}
+
+void fdp_nci_intercept_inc(struct nci_dev *ndev)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ pr_info("FDP NCI intercept INC\n");
+ atomic_inc(&info->intercept);
+}
+
+void fdp_nci_intercept_dec(struct nci_dev *ndev)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ pr_info("FDP NCI intercept DEC\n");
+ atomic_dec(&info->intercept);
+}
+
+void fdp_nci_intercept_add(struct nci_dev *ndev, int count)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ pr_info("FDP NCI intercept ADD %d\n", count);
+ atomic_add(count, &info->intercept);
+}
+
+void fdp_nci_intercept_disable(struct nci_dev *ndev)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ pr_info("FDP NCI intercept disabled\n");
+ atomic_set(&info->intercept, 0);
+}
+
+void fdp_nci_set_data_pkt_counter(struct nci_dev *ndev,
+ void (*cb)(struct nci_dev *ndev), int count)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ pr_info("FDP NCI data pkt counter %d\n", count);
+ atomic_set(&info->data_pkt_counter, count);
+ info->data_pkt_counter_cb = cb;
+}
+
+int fdp_nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ pr_debug("%s\n", __func__);
+
+ if (atomic_read(&info->intercept)) {
+ skb_queue_tail(&info->rx_q, skb);
+ schedule_work(&info->rx_work);
+ return 0;
+ }
+
+ return nci_recv_frame(ndev, skb);
+}
+EXPORT_SYMBOL(fdp_nci_recv_frame);
+
+void fdp_nci_rx_work(struct work_struct *work)
+{
+ struct sk_buff *skb;
+ struct fdp_nci_info *info = container_of(work, struct fdp_nci_info,
+ rx_work);
+ struct nci_dev *ndev = info->ndev;
+ int r;
+
+ while ((skb = skb_dequeue(&info->rx_q))) {
+
+ switch (nci_mt(skb->data)) {
+ case NCI_MT_RSP_PKT:
+ r = fdp_nci_rsp_packet(ndev, skb);
+ break;
+ case NCI_MT_NTF_PKT:
+ r = fdp_nci_ntf_packet(ndev, skb);
+ break;
+ default:
+ r = -EINVAL;
+ }
+
+ /*
+ * Packet received. Disabling intercept
+ * It should be reenabled if still needed
+ */
+ if (!r)
+ fdp_nci_intercept_dec(ndev);
+
+ kfree_skb(skb);
+ }
+}
+
+int fdp_nci_send_cmd(struct nci_dev *ndev, u16 opcode, u8 plen,
+ void *payload)
+{
+ fdp_nci_intercept_inc(ndev);
+ return nci_send_cmd(ndev, opcode, plen, payload);
+}
+
+int fdp_nci_request_firmware(struct nci_dev *ndev)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+ struct device *dev = &info->phy->i2c_dev->dev;
+ u8 *data;
+ int r;
+
+ r = request_firmware(&info->otp_patch, FDP_OTP_PATCH_NAME, dev);
+ if (r < 0) {
+ pr_info("FDP OTP patch request error\n");
+ goto error;
+ }
+
+ r = request_firmware(&info->ram_patch, FDP_RAM_PATCH_NAME, dev);
+ if (r < 0) {
+ pr_info("FDP RAM patch request error\n");
+ goto release_otp_patch;
+ }
+
+ data = (u8 *) info->otp_patch->data;
+ info->otp_patch_version =
+ data[FDP_FW_HEADER_SIZE] |
+ (data[FDP_FW_HEADER_SIZE + 1] << 8) |
+ (data[FDP_FW_HEADER_SIZE+2] << 16) |
+ (data[FDP_FW_HEADER_SIZE+3] << 24);
+
+ data = (u8 *) info->ram_patch->data;
+ info->ram_patch_version =
+ data[FDP_FW_HEADER_SIZE] |
+ (data[FDP_FW_HEADER_SIZE + 1] << 8) |
+ (data[FDP_FW_HEADER_SIZE + 2] << 16) |
+ (data[FDP_FW_HEADER_SIZE + 3] << 24);
+
+ pr_info("FDP OTP patch version: %d, size: %d\n",
+ info->otp_patch_version, (int) info->otp_patch->size);
+ pr_info("FDP RAM patch version: %d, size: %d\n",
+ info->ram_patch_version, (int) info->ram_patch->size);
+
+ return 0;
+
+release_otp_patch:
+ release_firmware(info->otp_patch);
+error:
+ return r;
+}
+
+int fdp_nci_setup(struct nci_dev *ndev)
+{
+ /* Format: total length followed by an NCI packet */
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+ char fdp_post_fw_vsc_cfg[] = { 0x1A, 0x2F, 0x23, 0x17,
+ 0x00, 0x00, 0x00,
+ 0x00, 0x04, 0x04, 0x2B, 0x20, 0xFF,
+ 0x09, 0x07, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0x02, 0xFF, 0xFF,
+ 0x08, 0x03, 0x00, 0xFF, 0xFF };
+ int r;
+ u8 patched = 0;
+
+ pr_debug("%s\n", __func__);
+
+ r = nci_init(ndev);
+ if (r)
+ goto error;
+
+ /* Get RAM and OTP version */
+ r = fdp_nci_get_versions(ndev);
+ if (r)
+ goto error;
+
+ /* Load firmware from disk */
+ r = fdp_nci_request_firmware(ndev);
+ if (r)
+ goto error;
+
+ /* Update OTP */
+ if (info->otp_version < info->otp_patch_version) {
+
+ info->setup_patch_sent = 0;
+ info->setup_reset_ntf = 0;
+ info->setup_patch_ntf = 0;
+
+ /* Patch init request */
+ r = fdp_nci_patch_start(ndev, NCI_PATCH_TYPE_OTP);
+ if (r)
+ goto error;
+
+ /* Patch data connection creation */
+ r = fdp_nci_create_conn(ndev);
+ if (r)
+ goto error;
+
+ /* Send the patch over the data connection */
+ r = fdp_nci_send_patch(ndev, NCI_PATCH_TYPE_OTP);
+ if (r)
+ goto error;
+
+ /* Wait for all the packets to be send over i2c */
+ wait_event_interruptible(info->setup_wq,
+ info->setup_patch_sent == 1);
+
+ /* Close the data connection */
+ r = fdp_nci_close_conn(ndev);
+ if (r)
+ goto error;
+
+ /*
+ * After we send the patch finish message we expect two
+ * notifications: NCI_OP_PROP_PATCH_NTF,
+ * NCI_OP_CORE_RESET_NTF
+ */
+ fdp_nci_intercept_add(ndev, 2);
+
+ /* Patch finish message */
+ r = fdp_nci_patch_end(ndev);
+ if (r) {
+ pr_err("FDP OTP patch error %d\n", r);
+ r = -EINVAL;
+ goto error;
+ }
+
+ /* If the patch notification didn't arrive yet, wait for it */
+ wait_event_interruptible(info->setup_wq, info->setup_patch_ntf);
+
+ /* Check if the patching was successful */
+ r = info->setup_patch_status;
+ if (r) {
+ pr_err("FDP OTP patch error %d\n", r);
+ r = -EINVAL;
+ goto error;
+ }
+
+ /*
+ * We need to wait for the reset notification before we
+ * can continue
+ */
+ wait_event_interruptible(info->setup_wq, info->setup_reset_ntf);
+
+ patched = 1;
+ }
+
+ /* Update RAM */
+ if (info->ram_version < info->ram_patch_version) {
+
+ info->setup_patch_sent = 0;
+ info->setup_reset_ntf = 0;
+ info->setup_patch_ntf = 0;
+
+ /* Patch init request */
+ r = fdp_nci_patch_start(ndev, NCI_PATCH_TYPE_RAM);
+ if (r)
+ goto error;
+
+ /* Patch data connection creation */
+ r = fdp_nci_create_conn(ndev);
+ if (r)
+ goto error;
+
+ /* Send the patch over the data connection */
+ r = fdp_nci_send_patch(ndev, NCI_PATCH_TYPE_RAM);
+ if (r)
+ goto error;
+
+ /* Wait for all the packets to be send over i2c */
+ wait_event_interruptible(info->setup_wq,
+ info->setup_patch_sent == 1);
+
+ /* Close the data connection */
+ r = fdp_nci_close_conn(ndev);
+ if (r)
+ goto error;
+
+ /*
+ * After we send the patch finish message we expect two
+ * notifications: NCI_OP_PROP_PATCH_NTF,
+ * NCI_OP_CORE_RESET_NTF
+ */
+ fdp_nci_intercept_add(ndev, 2);
+
+ /* Patch finish message */
+ if (fdp_nci_patch_end(ndev)) {
+ r = -EINVAL;
+ goto error;
+ }
+
+ /* If the patch notification didn't arrive yet, wait for it*/
+ wait_event_interruptible(info->setup_wq, info->setup_patch_ntf);
+
+ /* Check if the patching was successful */
+ r = info->setup_patch_status;
+ if (r) {
+ pr_err("FDP RAM patch error %d\n", r);
+ r = -EINVAL;
+ goto error;
+ }
+
+ /*
+ * We need to wait for the reset notification before we
+ * can continue
+ */
+ wait_event_interruptible(info->setup_wq, info->setup_reset_ntf);
+
+ patched = 1;
+ }
+
+ /* If a patch was applied the new version is checked */
+ if (patched) {
+ r = nci_init(ndev);
+ if (r)
+ goto error;
+
+ r = fdp_nci_get_versions(ndev);
+ if (r)
+ goto error;
+
+ if (info->otp_version != info->otp_patch_version ||
+ info->ram_version != info->ram_patch_version) {
+ pr_err("FRP firmware update failed");
+ r = -EINVAL;
+ }
+ }
+
+ /* Check if the device has VSC */
+ if (fdp_post_fw_vsc_cfg[0]) {
+ /* Set the vendor specific configuration */
+ r = fdp_nci_set_production_data(ndev, fdp_post_fw_vsc_cfg[3],
+ &fdp_post_fw_vsc_cfg[4]);
+ if (r)
+ goto error;
+ }
+
+ /* Set clock type and frequency */
+ r = fdp_nci_set_clock(ndev, 0, 26000);
+ if (r)
+ goto error;
+
+ /*
+ * We initialized the devices but thA NFC subsystem
+ * expects it to not be initialized. Also in order to
+ * apply the VSC FDP needs a reset
+ */
+ r = nci_reset(ndev);
+ if (r)
+ goto error;
+
+ pr_info("FDP Setup done\n");
+
+ return 0;
+
+error:
+ fdp_nci_intercept_disable(ndev);
+ pr_info("FDP Setup error %d\n", r);
+ return r;
+}
+
+struct nci_ops nci_ops = {
+ .open = fdp_nci_open,
+ .close = fdp_nci_close,
+ .send = fdp_nci_send,
+ .setup = fdp_nci_setup,
+};
+
+int fdp_nci_probe(struct fdp_i2c_phy *phy, struct nfc_phy_ops *phy_ops,
+ struct nci_dev **ndevp, int tx_headroom,
+ int tx_tailroom)
+{
+ struct fdp_nci_info *info;
+ struct nci_dev *ndev;
+ u32 protocols;
+ int r;
+
+ nfc_info(&phy->i2c_dev->dev, "%s\n", __func__);
+
+ info = kzalloc(sizeof(struct fdp_nci_info), GFP_KERNEL);
+ if (!info) {
+ r = -ENOMEM;
+ goto err_info_alloc;
+ }
+
+ info->phy = phy;
+ info->phy_ops = phy_ops;
+ info->state = FDP_ST_COLD;
+ mutex_init(&info->lock);
+
+ skb_queue_head_init(&info->rx_q);
+ INIT_WORK(&info->rx_work, fdp_nci_rx_work);
+
+ init_waitqueue_head(&info->setup_wq);
+
+ protocols = NFC_PROTO_JEWEL_MASK |
+ NFC_PROTO_MIFARE_MASK |
+ NFC_PROTO_FELICA_MASK |
+ NFC_PROTO_ISO14443_MASK |
+ NFC_PROTO_ISO14443_B_MASK |
+ NFC_PROTO_NFC_DEP_MASK |
+ NFC_PROTO_ISO15693_MASK;
+
+ ndev = nci_allocate_device(&nci_ops, protocols, tx_headroom,
+ tx_tailroom);
+ if (!ndev) {
+ pr_err("Cannot allocate nfc ndev\n");
+ r = -ENOMEM;
+ goto err_alloc_ndev;
+ }
+
+ r = nci_register_device(ndev);
+ if (r)
+ goto err_regdev;
+
+ *ndevp = ndev;
+ info->ndev = ndev;
+
+ nci_set_drvdata(ndev, info);
+
+ return 0;
+
+err_regdev:
+ nci_free_device(ndev);
+err_alloc_ndev:
+ kfree(info);
+err_info_alloc:
+ return r;
+}
+EXPORT_SYMBOL(fdp_nci_probe);
+
+void fdp_nci_remove(struct nci_dev *ndev)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ pr_info("%s\n", __func__);
+
+ nci_unregister_device(ndev);
+ nci_free_device(ndev);
+ kfree(info);
+}
+EXPORT_SYMBOL(fdp_nci_remove);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/nfc/fdp/fdp.h b/drivers/nfc/fdp/fdp.h
new file mode 100644
index 0000000..5c05a2c
--- /dev/null
+++ b/drivers/nfc/fdp/fdp.h
@@ -0,0 +1,115 @@
+/* -------------------------------------------------------------------------
+ * Copyright (C) 2014-2016, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * ------------------------------------------------------------------------- */
+
+#ifndef __LOCAL_FDP_H_
+#define __LOCAL_FDP_H_
+
+#include <net/nfc/nci_core.h>
+#include <linux/firmware.h>
+#include <linux/workqueue.h>
+
+#define DRIVER_DESC "NCI NFC driver for Intel FDP"
+
+#define NCI_PATCH_TYPE_RAM 0x00
+#define NCI_PATCH_TYPE_OTP 0x01
+#define NCI_PATCH_TYPE_EOT 0xFF
+
+#define NCI_PARAM_ID_FW_RAM_VERSION 0xA0
+#define NCI_PARAM_ID_FW_OTP_VERSION 0xA1
+#define NCI_PARAM_ID_OTP_LIMITED_VERSION 0xC5
+#define NCI_PARAM_ID_KEY_INDEX_ID 0xC6
+
+#define NCI_GID_PROP 0x0F
+
+struct fdp_i2c_phy {
+ struct i2c_client *i2c_dev;
+ struct nci_dev *ndev;
+
+ unsigned int gpio_en;
+ unsigned int gpio_irq;
+ unsigned int en_polarity;
+
+ int powered;
+
+ uint16_t next_read_size;
+
+ /*
+ * < 0 if hardware error occurred (e.g. i2c err)
+ * and prevents normal operation
+ */
+ int hard_fault;
+};
+
+enum fdp_state {
+ FDP_ST_COLD,
+ FDP_ST_RESET,
+ FDP_ST_READY,
+ FDP_ST_ERROR,
+};
+
+struct fdp_nci_info {
+ struct nfc_phy_ops *phy_ops;
+ struct fdp_i2c_phy *phy;
+ struct nci_dev *ndev;
+
+ enum fdp_state state;
+ struct mutex lock;
+
+ const struct firmware *otp_patch;
+ const struct firmware *ram_patch;
+ u32 otp_patch_version;
+ u32 ram_patch_version;
+
+ u32 otp_version;
+ u32 ram_version;
+ u32 limited_otp_version;
+ u8 key_index;
+
+ u8 conn_id;
+ atomic_t intercept;
+ atomic_t data_pkt_counter;
+ void (*data_pkt_counter_cb)(struct nci_dev *ndev);
+ u8 setup_patch_sent;
+ u8 setup_patch_ntf;
+ u8 setup_patch_status;
+ u8 setup_reset_ntf;
+ wait_queue_head_t setup_wq;
+
+ struct sk_buff_head rx_q;
+ struct work_struct rx_work;
+};
+
+int fdp_nci_probe(struct fdp_i2c_phy *phy, struct nfc_phy_ops *phy_ops,
+ struct nci_dev **ndev, int tx_headroom, int tx_tailroom);
+void fdp_nci_remove(struct nci_dev *ndev);
+
+int fdp_nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
+int fdp_nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen,
+ void *payload);
+
+int fdp_nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb);
+int fdp_nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb);
+
+int fdp_nci_create_conn(struct nci_dev *ndev);
+int fdp_nci_close_conn(struct nci_dev *ndev);
+int fdp_nci_get_versions(struct nci_dev *ndev);
+int fdp_nci_patch_start(struct nci_dev *ndev, u8 type);
+int fdp_nci_patch_end(struct nci_dev *ndev);
+int fdp_nci_send_patch(struct nci_dev *ndev, u8 type);
+int fdp_nci_set_production_data(struct nci_dev *ndev, u8 len, char *data);
+int fdp_nci_set_clock(struct nci_dev *ndev, u8 clock_type, u32 clock_freq);
+void fdp_nci_set_data_pkt_counter(struct nci_dev *ndev,
+ void (*cb)(struct nci_dev *ndev), int count);
+
+#endif /* __LOCAL_FDP_H_ */
diff --git a/drivers/nfc/fdp/i2c.c b/drivers/nfc/fdp/i2c.c
new file mode 100644
index 0000000..760f9e3
--- /dev/null
+++ b/drivers/nfc/fdp/i2c.c
@@ -0,0 +1,454 @@
+/* -------------------------------------------------------------------------
+ * Copyright (C) 2014-2016, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * ------------------------------------------------------------------------- */
+
+#include <linux/module.h>
+#include <linux/acpi.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/nfc.h>
+#include <linux/gpio.h>
+#include <linux/platform_data/fdp.h>
+#include <linux/delay.h>
+#include <net/nfc/nfc.h>
+#include <net/nfc/nci_core.h>
+
+#include "fdp.h"
+
+#define FDP_GPIO_NAME_IRQ "fdp_irq"
+#define FDP_GPIO_NAME_EN "fdp_en"
+
+#define FDP_FRAME_HEADROOM 2
+#define FDP_FRAME_TAILROOM 1
+
+#define FDP_NCI_I2C_MIN_PAYLOAD 5
+#define FDP_NCI_I2C_MAX_PAYLOAD 25
+
+#define RST_RESET 0
+#define RST_NO_RESET 1
+
+#define FDP_NCI_I2C_DRIVER_NAME "fdp_nci_i2c"
+
+#define I2C_DUMP_SKB(info, skb) \
+do { \
+ pr_debug("%s:\n", info); \
+ print_hex_dump(KERN_DEBUG, "i2c: ", DUMP_PREFIX_OFFSET, \
+ 16, 1, (skb)->data, (skb)->len, 0); \
+} while (0)
+
+static void fdp_nci_i2c_reset(struct fdp_i2c_phy *phy)
+{
+ /* Reset RST/WakeUP for at least 2 micro-second */
+ gpio_set_value_cansleep(phy->gpio_en, RST_RESET);
+ usleep_range(1000, 4000);
+ gpio_set_value_cansleep(phy->gpio_en, RST_NO_RESET);
+ usleep_range(10000, 14000);
+}
+
+static int fdp_nci_i2c_enable(void *phy_id)
+{
+ struct fdp_i2c_phy *phy = phy_id;
+
+ dev_dbg(&phy->i2c_dev->dev, "%s\n", __func__);
+
+ fdp_nci_i2c_reset(phy);
+ phy->powered = 1;
+
+ return 0;
+}
+
+static void fdp_nci_i2c_disable(void *phy_id)
+{
+ struct fdp_i2c_phy *phy = phy_id;
+
+ dev_dbg(&phy->i2c_dev->dev, "%s\n", __func__);
+
+ fdp_nci_i2c_reset(phy);
+ phy->powered = 0;
+}
+
+static void fdp_nci_i2c_add_len_lrc(struct sk_buff *skb)
+{
+ u8 lrc = 0;
+ u16 len, i;
+
+ /* Add length header */
+ len = skb->len;
+ *skb_push(skb, 1) = len & 0xff;
+ *skb_push(skb, 1) = len >> 8;
+
+ /* Compute and add lrc */
+ for (i = 0; i < len + 2; i++)
+ lrc ^= skb->data[i];
+
+ *skb_put(skb, 1) = lrc;
+}
+
+static void fdp_nci_i2c_remove_len_lrc(struct sk_buff *skb)
+{
+ skb_pull(skb, FDP_FRAME_HEADROOM);
+ skb_trim(skb, skb->len - FDP_FRAME_TAILROOM);
+}
+
+static int fdp_nci_i2c_write(void *phy_id, struct sk_buff *skb)
+{
+ struct fdp_i2c_phy *phy = phy_id;
+ struct i2c_client *client = phy->i2c_dev;
+ int r;
+
+ if (phy->hard_fault != 0)
+ return phy->hard_fault;
+
+ fdp_nci_i2c_add_len_lrc(skb);
+
+ I2C_DUMP_SKB("fdp_nci_i2c_write", skb);
+
+ r = i2c_master_send(client, skb->data, skb->len);
+ if (r == -EREMOTEIO) { /* Retry, chip was in standby */
+ usleep_range(1000, 4000);
+ r = i2c_master_send(client, skb->data, skb->len);
+ }
+
+ if (r < 0 || r != skb->len)
+ dev_dbg(&client->dev, "%s: error err=%d len=%d\n",
+ __func__, r, skb->len);
+
+ if (r >= 0) {
+ if (r != skb->len) {
+ phy->hard_fault = r;
+ r = -EREMOTEIO;
+ } else {
+ r = 0;
+ }
+ }
+
+ fdp_nci_i2c_remove_len_lrc(skb);
+
+ return r;
+}
+
+static struct nfc_phy_ops i2c_phy_ops = {
+ .write = fdp_nci_i2c_write,
+ .enable = fdp_nci_i2c_enable,
+ .disable = fdp_nci_i2c_disable,
+};
+
+static int fdp_nci_i2c_acpi_request_resources(struct i2c_client *client)
+{
+ struct fdp_i2c_phy *phy = i2c_get_clientdata(client);
+ const struct acpi_device_id *id;
+ struct gpio_desc *gpiod_en, *gpiod_irq;
+ struct device *dev;
+ int ret;
+
+ dev_dbg(&client->dev, "%s\n", __func__);
+
+ if (!client)
+ return -EINVAL;
+
+ dev = &client->dev;
+
+ /* Match the struct device against a given list of ACPI IDs */
+ id = acpi_match_device(dev->driver->acpi_match_table, dev);
+ if (!id)
+ return -ENODEV;
+
+ /* Get EN GPIO from ACPI */
+ gpiod_en = devm_gpiod_get_index(dev, FDP_GPIO_NAME_EN, 1);
+ if (IS_ERR(gpiod_en)) {
+ nfc_err(dev, "Unable to get EN GPIO\n");
+ return -ENODEV;
+ }
+
+ phy->gpio_en = desc_to_gpio(gpiod_en);
+
+ /* Configuration EN GPIO */
+ ret = gpiod_direction_output(gpiod_en, 0);
+ if (ret) {
+ nfc_err(dev, "Fail EN pin direction\n");
+ return ret;
+ }
+
+ /* Get IRQ GPIO */
+ gpiod_irq = devm_gpiod_get_index(dev, FDP_GPIO_NAME_IRQ, 0);
+ if (IS_ERR(gpiod_irq)) {
+ nfc_err(dev,
+ "Unable to get IRQ GPIO\n");
+ return -ENODEV;
+ }
+
+ phy->gpio_irq = desc_to_gpio(gpiod_irq);
+
+ /* Configure IRQ GPIO */
+ ret = gpiod_direction_input(gpiod_irq);
+ if (ret) {
+ nfc_err(dev, "Fail IRQ pin direction\n");
+ return ret;
+ }
+
+ /* Map the pin to an IRQ */
+ ret = gpiod_to_irq(gpiod_irq);
+ if (ret < 0) {
+ nfc_err(dev, "Fail pin IRQ mapping\n");
+ return ret;
+ }
+
+ nfc_info(dev, "GPIO resource, no:%d irq:%d\n",
+ desc_to_gpio(gpiod_irq), ret);
+ client->irq = ret;
+
+ return 0;
+}
+
+static int fdp_nci_i2c_read(struct fdp_i2c_phy *phy, struct sk_buff **skb)
+{
+ int r, len;
+ u8 tmp[FDP_NCI_I2C_MAX_PAYLOAD], lrc, k;
+ u16 i;
+ struct i2c_client *client = phy->i2c_dev;
+
+ *skb = NULL;
+
+ /* Read the length packet and the data packet */
+ for (k = 0; k < 2; k++) {
+
+ len = phy->next_read_size;
+
+ r = i2c_master_recv(client, tmp, len);
+ if (r != len) {
+ dev_dbg(&client->dev, "%s: i2c recv err: %d\n",
+ __func__, r);
+ goto flush;
+ }
+
+ /* Check packet integruty */
+ for (lrc = i = 0; i < r; i++)
+ lrc ^= tmp[i];
+
+ /*
+ * LRC check failed. This may due to transmission error or
+ * desynchronization between driver and FDP. Drop the paquet
+ * and force resynchronization
+ */
+ if (lrc) {
+ dev_dbg(&client->dev, "%s: corrupted packet\n",
+ __func__);
+ phy->next_read_size = 5;
+ goto flush;
+ }
+
+ /* Packet that contains a length */
+ if (tmp[0] == 0 && tmp[1] == 0) {
+
+ phy->next_read_size = (tmp[2] << 8) + tmp[3] + 3;
+
+ } else {
+
+ phy->next_read_size = FDP_NCI_I2C_MIN_PAYLOAD;
+
+ *skb = alloc_skb(len, GFP_KERNEL);
+ if (*skb == NULL) {
+ r = -ENOMEM;
+ goto flush;
+ }
+
+ memcpy(skb_put(*skb, len), tmp, len);
+ I2C_DUMP_SKB("fdp_nci_i2c_read", *skb);
+
+ fdp_nci_i2c_remove_len_lrc(*skb);
+ }
+ }
+
+ return 0;
+
+flush:
+ /* Flush the remaining data */
+ if (i2c_master_recv(client, tmp, sizeof(tmp)) < 0)
+ r = -EREMOTEIO;
+
+ return r;
+}
+
+static irqreturn_t fdp_nci_i2c_irq_thread_fn(int irq, void *phy_id)
+{
+ struct fdp_i2c_phy *phy = phy_id;
+ struct i2c_client *client;
+ struct sk_buff *skb;
+ int r;
+
+ client = phy->i2c_dev;
+ dev_dbg(&client->dev, "%s\n", __func__);
+
+ if (!phy || irq != phy->i2c_dev->irq) {
+ WARN_ON_ONCE(1);
+ return IRQ_NONE;
+ }
+
+ r = fdp_nci_i2c_read(phy, &skb);
+
+ if (r == -EREMOTEIO)
+ return IRQ_HANDLED;
+ else if (r == -ENOMEM || r == -EBADMSG)
+ return IRQ_HANDLED;
+
+ if (skb != NULL)
+ fdp_nci_recv_frame(phy->ndev, skb);
+
+ return IRQ_HANDLED;
+}
+
+
+static int fdp_nci_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct fdp_i2c_phy *phy;
+ struct fdp_nfc_platform_data *pdata;
+ int r = 0;
+
+ dev_dbg(&client->dev, "%s\n", __func__);
+ dev_dbg(&client->dev, "IRQ: %d\n", client->irq);
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ nfc_err(&client->dev, "No I2C_FUNC_I2C\n");
+ return -ENODEV;
+ }
+
+ phy = devm_kzalloc(&client->dev, sizeof(struct fdp_i2c_phy),
+ GFP_KERNEL);
+ if (!phy)
+ return -ENOMEM;
+
+ phy->i2c_dev = client;
+ phy->next_read_size = FDP_NCI_I2C_MIN_PAYLOAD;
+ i2c_set_clientdata(client, phy);
+
+ pdata = client->dev.platform_data;
+
+ /* Using platform data. */
+ if (pdata) {
+
+ if (pdata->request_resources == NULL) {
+ nfc_err(&client->dev, "request_resources() missing\n");
+ return -EINVAL;
+ }
+
+ r = pdata->request_resources(client);
+ if (r) {
+ nfc_err(&client->dev,
+ "Cannot get platform resources\n");
+ return r;
+ }
+
+ phy->gpio_en = pdata->get_gpio(NFC_GPIO_ENABLE);
+ phy->gpio_irq = pdata->get_gpio(NFC_GPIO_IRQ);
+
+ /* Using ACPI */
+ } else if (ACPI_HANDLE(&client->dev)) {
+
+ r = fdp_nci_i2c_acpi_request_resources(client);
+ if (r) {
+ nfc_err(&client->dev,
+ "Cannot get ACPI data\n");
+ return r;
+ }
+
+ } else {
+ nfc_err(&client->dev, "No platform data\n");
+ return -EINVAL;
+ }
+
+ r = request_threaded_irq(client->irq, NULL, fdp_nci_i2c_irq_thread_fn,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+ FDP_NCI_I2C_DRIVER_NAME, phy);
+
+ if (r < 0) {
+ nfc_err(&client->dev, "Unable to register IRQ handler\n");
+ goto err_rti;
+ }
+
+ r = fdp_nci_probe(phy, &i2c_phy_ops, &phy->ndev,
+ FDP_FRAME_HEADROOM, FDP_FRAME_TAILROOM);
+
+ if (r < 0) {
+ nfc_err(&client->dev, "NCI probing error\n");
+ goto err_nci;
+ }
+
+ nfc_info(&client->dev, "FDP I2C driver loaded\n");
+ return 0;
+
+err_nci:
+ free_irq(client->irq, phy);
+
+err_rti:
+ if (!pdata)
+ gpio_free(phy->gpio_en);
+ else if (pdata->free_resources)
+ pdata->free_resources();
+
+ return r;
+}
+
+static int fdp_nci_i2c_remove(struct i2c_client *client)
+{
+ struct fdp_i2c_phy *phy = i2c_get_clientdata(client);
+ struct fdp_nfc_platform_data *pdata = client->dev.platform_data;
+
+ dev_dbg(&client->dev, "%s\n", __func__);
+
+ fdp_nci_remove(phy->ndev);
+
+ if (phy->powered)
+ fdp_nci_i2c_disable(phy);
+
+ free_irq(client->irq, phy);
+
+ /* No platform data, GPIOs have been requested by this driver */
+ if (!pdata) {
+ gpio_free(phy->gpio_en);
+ /* Using platform data */
+ } else if (pdata->free_resources) {
+ pdata->free_resources();
+ }
+
+ return 0;
+}
+
+static struct i2c_device_id fdp_nci_i2c_id_table[] = {
+ {"INT339A", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, fdp_nci_i2c_id_table);
+
+
+static const struct acpi_device_id fdp_nci_i2c_acpi_match[] = {
+ {"INT339A", 0},
+ {}
+};
+
+static struct i2c_driver fdp_nci_i2c_driver = {
+ .driver = {
+ .name = FDP_NCI_I2C_DRIVER_NAME,
+ .owner = THIS_MODULE,
+ .acpi_match_table = ACPI_PTR(fdp_nci_i2c_acpi_match),
+ },
+ .id_table = fdp_nci_i2c_id_table,
+ .probe = fdp_nci_i2c_probe,
+ .remove = fdp_nci_i2c_remove,
+};
+
+module_i2c_driver(fdp_nci_i2c_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/nfc/fdp/ntf.c b/drivers/nfc/fdp/ntf.c
new file mode 100644
index 0000000..5e4adb8
--- /dev/null
+++ b/drivers/nfc/fdp/ntf.c
@@ -0,0 +1,68 @@
+/* -------------------------------------------------------------------------
+ * Copyright (C) 2014-2016, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * ------------------------------------------------------------------------- */
+
+#include <linux/module.h>
+#include <linux/nfc.h>
+#include <linux/i2c.h>
+#include <linux/firmware.h>
+#include <net/nfc/nci_core.h>
+
+#include "fdp.h"
+
+#define NCI_OP_PROP_PATCH_NTF nci_opcode_pack(NCI_GID_PROP, 0x08)
+#define NCI_OP_CORE_RESET_NTF nci_opcode_pack(NCI_GID_CORE, 0x00)
+
+void fdp_nci_core_reset_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ info->setup_reset_ntf = 1;
+ wake_up(&info->setup_wq);
+}
+
+void fdp_nci_prop_patch_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+
+ info->setup_patch_ntf = 1;
+ info->setup_patch_status = skb->data[0];
+ wake_up(&info->setup_wq);
+}
+
+int fdp_nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
+{
+ u16 ntf_opcode;
+ int r = 0;
+
+ ntf_opcode = nci_opcode(skb->data);
+
+ /* strip the nci control header */
+ skb_pull(skb, NCI_CTRL_HDR_SIZE);
+
+ switch (ntf_opcode) {
+ case NCI_OP_CORE_RESET_NTF:
+ fdp_nci_core_reset_ntf_packet(ndev, skb);
+ break;
+ case NCI_OP_PROP_PATCH_NTF:
+ fdp_nci_prop_patch_ntf_packet(ndev, skb);
+ break;
+ default:
+ r = -EINVAL;
+ }
+
+ /* restore the nci control header */
+ skb_push(skb, NCI_CTRL_HDR_SIZE);
+
+ return r;
+}
diff --git a/drivers/nfc/fdp/rsp.c b/drivers/nfc/fdp/rsp.c
new file mode 100644
index 0000000..ce40e19
--- /dev/null
+++ b/drivers/nfc/fdp/rsp.c
@@ -0,0 +1,117 @@
+/* -------------------------------------------------------------------------
+ * Copyright (C) 2014-2016, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * ------------------------------------------------------------------------- */
+
+#include <linux/module.h>
+#include <linux/nfc.h>
+#include <linux/i2c.h>
+#include <linux/firmware.h>
+#include <net/nfc/nci_core.h>
+
+#include "fdp.h"
+
+#define NCI_OP_PROP_PATCH_RSP nci_opcode_pack(NCI_GID_PROP, 0x08)
+#define NCI_OP_PROP_SET_PRODUCTION_DATA_RSP nci_opcode_pack(NCI_GID_PROP, 0x23)
+#define NCI_OP_CORE_GET_CONFIG_RSP nci_opcode_pack(NCI_GID_CORE, 0x03)
+
+struct nci_core_get_config_rsp {
+ u8 status;
+ u8 count;
+ u8 data[0];
+};
+
+void fdp_nci_prop_patch_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
+{
+ u8 status = skb->data[0];
+
+ pr_debug("status 0x%x\n", status);
+ nci_req_complete_driver(ndev, status);
+}
+
+void fdp_nci_prop_set_production_data_rsp_packet(struct nci_dev *ndev,
+ struct sk_buff *skb)
+{
+ u8 status = skb->data[0];
+
+ pr_debug("status 0x%x\n", status);
+ nci_req_complete_driver(ndev, status);
+}
+
+void fdp_nci_core_get_config_rsp_packet(struct nci_dev *ndev,
+ struct sk_buff *skb)
+{
+ struct fdp_nci_info *info = nci_get_drvdata(ndev);
+ struct nci_core_get_config_rsp *rsp = (void *) skb->data;
+ u8 i, *p;
+
+ if (rsp->status == NCI_STATUS_OK) {
+
+ p = rsp->data;
+ for (i = 0; i < 4; i++) {
+
+ switch (*p++) {
+ case NCI_PARAM_ID_FW_RAM_VERSION:
+ p++;
+ info->ram_version = le32_to_cpup((u32 *) p);
+ p += 4;
+ break;
+ case NCI_PARAM_ID_FW_OTP_VERSION:
+ p++;
+ info->otp_version = le32_to_cpup((u32 *) p);
+ p += 4;
+ break;
+ case NCI_PARAM_ID_OTP_LIMITED_VERSION:
+ p++;
+ info->otp_version = le32_to_cpup((u32 *) p);
+ p += 4;
+ break;
+ case NCI_PARAM_ID_KEY_INDEX_ID:
+ p++;
+ info->key_index = *p++;
+ }
+ }
+ }
+
+ pr_debug("FDP OTP version %d\n", info->otp_version);
+ pr_debug("FDP RAM version %d\n", info->ram_version);
+ pr_debug("FDP key index %d\n", info->key_index);
+
+ pr_debug("status 0x%x\n", rsp->status);
+ nci_req_complete_driver(ndev, rsp->status);
+}
+
+int fdp_nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
+{
+ u16 ntf_opcode;
+ int r = 0;
+
+ ntf_opcode = nci_opcode(skb->data);
+ skb_pull(skb, NCI_CTRL_HDR_SIZE);
+
+ switch (ntf_opcode) {
+ case NCI_OP_CORE_GET_CONFIG_RSP:
+ fdp_nci_core_get_config_rsp_packet(ndev, skb);
+ break;
+ case NCI_OP_PROP_PATCH_RSP:
+ fdp_nci_prop_patch_rsp_packet(ndev, skb);
+ break;
+ case NCI_OP_PROP_SET_PRODUCTION_DATA_RSP:
+ fdp_nci_prop_set_production_data_rsp_packet(ndev, skb);
+ break;
+ default:
+ r = -EINVAL;
+ }
+
+ skb_push(skb, NCI_CTRL_HDR_SIZE);
+ return r;
+}
diff --git a/include/linux/platform_data/fdp.h b/include/linux/platform_data/fdp.h
new file mode 100644
index 0000000..5a77095
--- /dev/null
+++ b/include/linux/platform_data/fdp.h
@@ -0,0 +1,33 @@
+/* -------------------------------------------------------------------------
+ * Copyright (C) 2014-2016, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * ------------------------------------------------------------------------- */
+
+
+#ifndef _FDP_H_
+#define _FDP_H_
+
+#include <linux/i2c.h>
+
+enum {
+ NFC_GPIO_ENABLE,
+ NFC_GPIO_IRQ,
+};
+
+/* board config */
+struct fdp_nfc_platform_data {
+ int (*request_resources)(struct i2c_client *client);
+ void (*free_resources)(void);
+ int (*get_gpio)(int type);
+};
+
+#endif /* _FDP_H_ */
--
1.9.1
I have no idea about NFC, but
> +config NFC_FDP
> + tristate "Intel FDP NFC driver"
> + depends on NFC_NCI
> + select CRC_CCITT
> + default n
> + ---help---
> + Intel FDP core driver.
> + This is a driver based on the NCI NFC kernel layers.
> +
> + To compile this driver as a module, choose m here. The module will
> + be called pn547.
this seems like a copy/paste error? Certainly it's called fdp?
johannes
On Tue, Feb 24, 2015 at 11:33:10AM +0100, Johannes Berg wrote:
> > +config NFC_FDP
> > + tristate "Intel FDP NFC driver"
> > + depends on NFC_NCI
> > + select CRC_CCITT
> > + default n
> > + ---help---
> > + Intel FDP core driver.
> > + This is a driver based on the NCI NFC kernel layers.
> > +
> > + To compile this driver as a module, choose m here. The module will
> > + be called pn547.
>
> this seems like a copy/paste error? Certainly it's called fdp?
You are right. It should be FDP instead of pn547.
I will also rename the menu entry name from "Intel FDP NFC driver" to
"Intel FieldsPeak (FDP) NFC driver" to be more clear what FDP means.
Thanks,
Robert
I'm excited - what's NFC?
- Greg
On Tue, Feb 24, 2015 at 2:01 AM, Robert Dolca <[email protected]> wrote:
> This patch adds support for Intel's FieldsPeak NFC solution.
> The device is enumerated with ACPI and platform init.
>
> In order to implement the driver the nci_core_conn_create was
> modified in order to report the ID of the newly created connection.
> Fixed a bug that prevented to close a connection from the driver while
> the dev was down.
>
> The max packet size of a connection can be retrieved by the driver.
>
> The init, reset NCI functions can be called from the driver. The driver
> can also send command to the device using the NFC subsystem using the
> request - response blocking method.
>
> Robert Dolca (8):
> NFC: NCI: Allow connection close with dev down
> NFC: NCI: Exporting NFC command and data send API
> NFC: NCI: Adds NCI init and reset API for drivers
> NFC: NCI: Add a special nci_request for driver
> NFC: NCI: Don't call setup if previous NCI request failed
> NFC: NCI: Add function to get max packet size for conn
> NFC: NCI: Adds a way to get the new connection ID
> NFC: Add Intel FieldsPeak NFC solution driver
>
> drivers/nfc/Kconfig | 1 +
> drivers/nfc/fdp/Kconfig | 22 ++
> drivers/nfc/fdp/Makefile | 10 +
> drivers/nfc/fdp/cmd.c | 196 +++++++++++++++
> drivers/nfc/fdp/core.c | 503 +++++++++++++++++++++++++++++++++++++
> drivers/nfc/fdp/fdp.h | 115 +++++++++
> drivers/nfc/fdp/i2c.c | 454 +++++++++++++++++++++++++++++++++
> drivers/nfc/fdp/ntf.c | 68 +++++
> drivers/nfc/fdp/rsp.c | 117 +++++++++
> drivers/nfc/st21nfcb/st21nfcb_se.c | 2 +-
> include/linux/platform_data/fdp.h | 33 +++
> include/net/nfc/nci_core.h | 18 +-
> net/nfc/nci/core.c | 53 +++-
> net/nfc/nci/data.c | 13 +
> net/nfc/nci/rsp.c | 6 +
> 15 files changed, 1601 insertions(+), 10 deletions(-)
> create mode 100644 drivers/nfc/fdp/Kconfig
> create mode 100644 drivers/nfc/fdp/Makefile
> create mode 100644 drivers/nfc/fdp/cmd.c
> create mode 100644 drivers/nfc/fdp/core.c
> create mode 100644 drivers/nfc/fdp/fdp.h
> create mode 100644 drivers/nfc/fdp/i2c.c
> create mode 100644 drivers/nfc/fdp/ntf.c
> create mode 100644 drivers/nfc/fdp/rsp.c
> create mode 100644 include/linux/platform_data/fdp.h
>
> --
> 1.9.1
>
> --
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On Tue, Feb 24, 2015 at 6:14 PM, Greg Rose <[email protected]> wrote:
> I'm excited - what's NFC?
Please don't do top posting.
Other than that:
http://en.wikipedia.org/wiki/Near_field_communication
Daniel.
On Tue, Feb 24, 2015 at 8:25 AM, Daniel Baluta <[email protected]> wrote:
> On Tue, Feb 24, 2015 at 6:14 PM, Greg Rose <[email protected]> wrote:
>> I'm excited - what's NFC?
>
>
> Please don't do top posting.
My apologies - my smartphone interface rather sucks sometimes.
>
> Other than that:
>
> http://en.wikipedia.org/wiki/Near_field_communication
>
> Daniel.
Thanks!
- Greg