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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
commite5fd91f1ef340da553f7a79da9540c3db711c937 (patch)
treeb11842027dc6641da63f4bcc524f8678263304a3 /drivers/nfc/st21nfcb
parent2a9b0348e685a63d97486f6749622b61e9e3292f (diff)
Linux-libre 4.2-gnu
Diffstat (limited to 'drivers/nfc/st21nfcb')
-rw-r--r--drivers/nfc/st21nfcb/Kconfig22
-rw-r--r--drivers/nfc/st21nfcb/Makefile9
-rw-r--r--drivers/nfc/st21nfcb/i2c.c388
-rw-r--r--drivers/nfc/st21nfcb/ndlc.c300
-rw-r--r--drivers/nfc/st21nfcb/ndlc.h59
-rw-r--r--drivers/nfc/st21nfcb/st21nfcb.c140
-rw-r--r--drivers/nfc/st21nfcb/st21nfcb.h38
-rw-r--r--drivers/nfc/st21nfcb/st21nfcb_se.c713
-rw-r--r--drivers/nfc/st21nfcb/st21nfcb_se.h61
9 files changed, 0 insertions, 1730 deletions
diff --git a/drivers/nfc/st21nfcb/Kconfig b/drivers/nfc/st21nfcb/Kconfig
deleted file mode 100644
index e0322dd03..000000000
--- a/drivers/nfc/st21nfcb/Kconfig
+++ /dev/null
@@ -1,22 +0,0 @@
-config NFC_ST21NFCB
- tristate "STMicroelectronics ST21NFCB NFC driver"
- depends on NFC_NCI
- default n
- ---help---
- STMicroelectronics ST21NFCB core driver. It implements the chipset
- NCI logic and hooks into the NFC kernel APIs. Physical layers will
- register against it.
-
- To compile this driver as a module, choose m here. The module will
- be called st21nfcb.
- Say N if unsure.
-
-config NFC_ST21NFCB_I2C
- tristate "NFC ST21NFCB i2c support"
- depends on NFC_ST21NFCB && I2C
- ---help---
- This module adds support for the STMicroelectronics st21nfcb i2c interface.
- Select this if your platform is using the i2c bus.
-
- If you choose to build a module, it'll be called st21nfcb_i2c.
- Say N if unsure.
diff --git a/drivers/nfc/st21nfcb/Makefile b/drivers/nfc/st21nfcb/Makefile
deleted file mode 100644
index ce659a9e5..000000000
--- a/drivers/nfc/st21nfcb/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# Makefile for ST21NFCB NCI based NFC driver
-#
-
-st21nfcb_nci-objs = ndlc.o st21nfcb.o st21nfcb_se.o
-obj-$(CONFIG_NFC_ST21NFCB) += st21nfcb_nci.o
-
-st21nfcb_i2c-objs = i2c.o
-obj-$(CONFIG_NFC_ST21NFCB_I2C) += st21nfcb_i2c.o
diff --git a/drivers/nfc/st21nfcb/i2c.c b/drivers/nfc/st21nfcb/i2c.c
deleted file mode 100644
index c44f8cf53..000000000
--- a/drivers/nfc/st21nfcb/i2c.c
+++ /dev/null
@@ -1,388 +0,0 @@
-/*
- * I2C Link Layer for ST21NFCB NCI based Driver
- * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * 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/gpio.h>
-#include <linux/of_irq.h>
-#include <linux/of_gpio.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/nfc.h>
-#include <linux/platform_data/st21nfcb.h>
-
-#include "ndlc.h"
-
-#define DRIVER_DESC "NCI NFC driver for ST21NFCB"
-
-/* ndlc header */
-#define ST21NFCB_FRAME_HEADROOM 1
-#define ST21NFCB_FRAME_TAILROOM 0
-
-#define ST21NFCB_NCI_I2C_MIN_SIZE 4 /* PCB(1) + NCI Packet header(3) */
-#define ST21NFCB_NCI_I2C_MAX_SIZE 250 /* req 4.2.1 */
-
-#define ST21NFCB_NCI_I2C_DRIVER_NAME "st21nfcb_nci_i2c"
-
-static struct i2c_device_id st21nfcb_nci_i2c_id_table[] = {
- {ST21NFCB_NCI_DRIVER_NAME, 0},
- {}
-};
-MODULE_DEVICE_TABLE(i2c, st21nfcb_nci_i2c_id_table);
-
-struct st21nfcb_i2c_phy {
- struct i2c_client *i2c_dev;
- struct llt_ndlc *ndlc;
-
- unsigned int gpio_reset;
- unsigned int irq_polarity;
-
- int powered;
-};
-
-#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 int st21nfcb_nci_i2c_enable(void *phy_id)
-{
- struct st21nfcb_i2c_phy *phy = phy_id;
-
- gpio_set_value(phy->gpio_reset, 0);
- usleep_range(10000, 15000);
- gpio_set_value(phy->gpio_reset, 1);
- phy->powered = 1;
- usleep_range(80000, 85000);
-
- return 0;
-}
-
-static void st21nfcb_nci_i2c_disable(void *phy_id)
-{
- struct st21nfcb_i2c_phy *phy = phy_id;
-
- phy->powered = 0;
- /* reset chip in order to flush clf */
- gpio_set_value(phy->gpio_reset, 0);
- usleep_range(10000, 15000);
- gpio_set_value(phy->gpio_reset, 1);
-}
-
-/*
- * 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 st21nfcb_nci_i2c_write(void *phy_id, struct sk_buff *skb)
-{
- int r = -1;
- struct st21nfcb_i2c_phy *phy = phy_id;
- struct i2c_client *client = phy->i2c_dev;
-
- I2C_DUMP_SKB("st21nfcb_nci_i2c_write", skb);
-
- if (phy->ndlc->hard_fault != 0)
- return phy->ndlc->hard_fault;
-
- r = i2c_master_send(client, skb->data, skb->len);
- if (r < 0) { /* Retry, chip was in standby */
- usleep_range(1000, 4000);
- r = i2c_master_send(client, skb->data, skb->len);
- }
-
- if (r >= 0) {
- if (r != skb->len)
- r = -EREMOTEIO;
- else
- r = 0;
- }
-
- return r;
-}
-
-/*
- * Reads an ndlc frame and returns it in a newly allocated sk_buff.
- * returns:
- * frame size : if received frame is complete (find ST21NFCB_SOF_EOF at
- * end of read)
- * -EAGAIN : if received frame is incomplete (not find ST21NFCB_SOF_EOF
- * at end of read)
- * -EREMOTEIO : i2c read error (fatal)
- * -EBADMSG : frame was incorrect and discarded
- * (value returned from st21nfcb_nci_i2c_repack)
- * -EIO : if no ST21NFCB_SOF_EOF is found after reaching
- * the read length end sequence
- */
-static int st21nfcb_nci_i2c_read(struct st21nfcb_i2c_phy *phy,
- struct sk_buff **skb)
-{
- int r;
- u8 len;
- u8 buf[ST21NFCB_NCI_I2C_MAX_SIZE];
- struct i2c_client *client = phy->i2c_dev;
-
- r = i2c_master_recv(client, buf, ST21NFCB_NCI_I2C_MIN_SIZE);
- if (r < 0) { /* Retry, chip was in standby */
- usleep_range(1000, 4000);
- r = i2c_master_recv(client, buf, ST21NFCB_NCI_I2C_MIN_SIZE);
- }
-
- if (r != ST21NFCB_NCI_I2C_MIN_SIZE)
- return -EREMOTEIO;
-
- len = be16_to_cpu(*(__be16 *) (buf + 2));
- if (len > ST21NFCB_NCI_I2C_MAX_SIZE) {
- nfc_err(&client->dev, "invalid frame len\n");
- return -EBADMSG;
- }
-
- *skb = alloc_skb(ST21NFCB_NCI_I2C_MIN_SIZE + len, GFP_KERNEL);
- if (*skb == NULL)
- return -ENOMEM;
-
- skb_reserve(*skb, ST21NFCB_NCI_I2C_MIN_SIZE);
- skb_put(*skb, ST21NFCB_NCI_I2C_MIN_SIZE);
- memcpy((*skb)->data, buf, ST21NFCB_NCI_I2C_MIN_SIZE);
-
- if (!len)
- return 0;
-
- r = i2c_master_recv(client, buf, len);
- if (r != len) {
- kfree_skb(*skb);
- return -EREMOTEIO;
- }
-
- skb_put(*skb, len);
- memcpy((*skb)->data + ST21NFCB_NCI_I2C_MIN_SIZE, buf, len);
-
- I2C_DUMP_SKB("i2c frame read", *skb);
-
- return 0;
-}
-
-/*
- * Reads an ndlc frame from the chip.
- *
- * On ST21NFCB, IRQ goes in idle state when read starts.
- */
-static irqreturn_t st21nfcb_nci_irq_thread_fn(int irq, void *phy_id)
-{
- struct st21nfcb_i2c_phy *phy = phy_id;
- struct i2c_client *client;
- struct sk_buff *skb = NULL;
- int r;
-
- if (!phy || !phy->ndlc || irq != phy->i2c_dev->irq) {
- WARN_ON_ONCE(1);
- return IRQ_NONE;
- }
-
- client = phy->i2c_dev;
- dev_dbg(&client->dev, "IRQ\n");
-
- if (phy->ndlc->hard_fault)
- return IRQ_HANDLED;
-
- if (!phy->powered) {
- st21nfcb_nci_i2c_disable(phy);
- return IRQ_HANDLED;
- }
-
- r = st21nfcb_nci_i2c_read(phy, &skb);
- if (r == -EREMOTEIO || r == -ENOMEM || r == -EBADMSG)
- return IRQ_HANDLED;
-
- ndlc_recv(phy->ndlc, skb);
-
- return IRQ_HANDLED;
-}
-
-static struct nfc_phy_ops i2c_phy_ops = {
- .write = st21nfcb_nci_i2c_write,
- .enable = st21nfcb_nci_i2c_enable,
- .disable = st21nfcb_nci_i2c_disable,
-};
-
-#ifdef CONFIG_OF
-static int st21nfcb_nci_i2c_of_request_resources(struct i2c_client *client)
-{
- struct st21nfcb_i2c_phy *phy = i2c_get_clientdata(client);
- struct device_node *pp;
- int gpio;
- int r;
-
- pp = client->dev.of_node;
- if (!pp)
- return -ENODEV;
-
- /* Get GPIO from device tree */
- gpio = of_get_named_gpio(pp, "reset-gpios", 0);
- if (gpio < 0) {
- nfc_err(&client->dev,
- "Failed to retrieve reset-gpios from device tree\n");
- return gpio;
- }
-
- /* GPIO request and configuration */
- r = devm_gpio_request_one(&client->dev, gpio,
- GPIOF_OUT_INIT_HIGH, "clf_reset");
- if (r) {
- nfc_err(&client->dev, "Failed to request reset pin\n");
- return r;
- }
- phy->gpio_reset = gpio;
-
- phy->irq_polarity = irq_get_trigger_type(client->irq);
-
- return 0;
-}
-#else
-static int st21nfcb_nci_i2c_of_request_resources(struct i2c_client *client)
-{
- return -ENODEV;
-}
-#endif
-
-static int st21nfcb_nci_i2c_request_resources(struct i2c_client *client)
-{
- struct st21nfcb_nfc_platform_data *pdata;
- struct st21nfcb_i2c_phy *phy = i2c_get_clientdata(client);
- int r;
-
- pdata = client->dev.platform_data;
- if (pdata == NULL) {
- nfc_err(&client->dev, "No platform data\n");
- return -EINVAL;
- }
-
- /* store for later use */
- phy->gpio_reset = pdata->gpio_reset;
- phy->irq_polarity = pdata->irq_polarity;
-
- r = devm_gpio_request_one(&client->dev,
- phy->gpio_reset, GPIOF_OUT_INIT_HIGH, "clf_reset");
- if (r) {
- pr_err("%s : reset gpio_request failed\n", __FILE__);
- return r;
- }
-
- return 0;
-}
-
-static int st21nfcb_nci_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct st21nfcb_i2c_phy *phy;
- struct st21nfcb_nfc_platform_data *pdata;
- int r;
-
- 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, "Need I2C_FUNC_I2C\n");
- return -ENODEV;
- }
-
- phy = devm_kzalloc(&client->dev, sizeof(struct st21nfcb_i2c_phy),
- GFP_KERNEL);
- if (!phy)
- return -ENOMEM;
-
- phy->i2c_dev = client;
-
- i2c_set_clientdata(client, phy);
-
- pdata = client->dev.platform_data;
- if (!pdata && client->dev.of_node) {
- r = st21nfcb_nci_i2c_of_request_resources(client);
- if (r) {
- nfc_err(&client->dev, "No platform data\n");
- return r;
- }
- } else if (pdata) {
- r = st21nfcb_nci_i2c_request_resources(client);
- if (r) {
- nfc_err(&client->dev,
- "Cannot get platform resources\n");
- return r;
- }
- } else {
- nfc_err(&client->dev,
- "st21nfcb platform resources not available\n");
- return -ENODEV;
- }
-
- r = ndlc_probe(phy, &i2c_phy_ops, &client->dev,
- ST21NFCB_FRAME_HEADROOM, ST21NFCB_FRAME_TAILROOM,
- &phy->ndlc);
- if (r < 0) {
- nfc_err(&client->dev, "Unable to register ndlc layer\n");
- return r;
- }
-
- r = devm_request_threaded_irq(&client->dev, client->irq, NULL,
- st21nfcb_nci_irq_thread_fn,
- phy->irq_polarity | IRQF_ONESHOT,
- ST21NFCB_NCI_DRIVER_NAME, phy);
- if (r < 0)
- nfc_err(&client->dev, "Unable to register IRQ handler\n");
-
- return r;
-}
-
-static int st21nfcb_nci_i2c_remove(struct i2c_client *client)
-{
- struct st21nfcb_i2c_phy *phy = i2c_get_clientdata(client);
-
- dev_dbg(&client->dev, "%s\n", __func__);
-
- ndlc_remove(phy->ndlc);
-
- return 0;
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id of_st21nfcb_i2c_match[] = {
- { .compatible = "st,st21nfcb-i2c", },
- { .compatible = "st,st21nfcb_i2c", },
- {}
-};
-MODULE_DEVICE_TABLE(of, of_st21nfcb_i2c_match);
-#endif
-
-static struct i2c_driver st21nfcb_nci_i2c_driver = {
- .driver = {
- .owner = THIS_MODULE,
- .name = ST21NFCB_NCI_I2C_DRIVER_NAME,
- .of_match_table = of_match_ptr(of_st21nfcb_i2c_match),
- },
- .probe = st21nfcb_nci_i2c_probe,
- .id_table = st21nfcb_nci_i2c_id_table,
- .remove = st21nfcb_nci_i2c_remove,
-};
-
-module_i2c_driver(st21nfcb_nci_i2c_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/nfc/st21nfcb/ndlc.c b/drivers/nfc/st21nfcb/ndlc.c
deleted file mode 100644
index 6014b5859..000000000
--- a/drivers/nfc/st21nfcb/ndlc.c
+++ /dev/null
@@ -1,300 +0,0 @@
-/*
- * Low Level Transport (NDLC) Driver for STMicroelectronics NFC Chip
- *
- * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/sched.h>
-#include <net/nfc/nci_core.h>
-
-#include "ndlc.h"
-#include "st21nfcb.h"
-
-#define NDLC_TIMER_T1 100
-#define NDLC_TIMER_T1_WAIT 400
-#define NDLC_TIMER_T2 1200
-
-#define PCB_TYPE_DATAFRAME 0x80
-#define PCB_TYPE_SUPERVISOR 0xc0
-#define PCB_TYPE_MASK PCB_TYPE_SUPERVISOR
-
-#define PCB_SYNC_ACK 0x20
-#define PCB_SYNC_NACK 0x10
-#define PCB_SYNC_WAIT 0x30
-#define PCB_SYNC_NOINFO 0x00
-#define PCB_SYNC_MASK PCB_SYNC_WAIT
-
-#define PCB_DATAFRAME_RETRANSMIT_YES 0x00
-#define PCB_DATAFRAME_RETRANSMIT_NO 0x04
-#define PCB_DATAFRAME_RETRANSMIT_MASK PCB_DATAFRAME_RETRANSMIT_NO
-
-#define PCB_SUPERVISOR_RETRANSMIT_YES 0x00
-#define PCB_SUPERVISOR_RETRANSMIT_NO 0x02
-#define PCB_SUPERVISOR_RETRANSMIT_MASK PCB_SUPERVISOR_RETRANSMIT_NO
-
-#define PCB_FRAME_CRC_INFO_PRESENT 0x08
-#define PCB_FRAME_CRC_INFO_NOTPRESENT 0x00
-#define PCB_FRAME_CRC_INFO_MASK PCB_FRAME_CRC_INFO_PRESENT
-
-#define NDLC_DUMP_SKB(info, skb) \
-do { \
- pr_debug("%s:\n", info); \
- print_hex_dump(KERN_DEBUG, "ndlc: ", DUMP_PREFIX_OFFSET, \
- 16, 1, skb->data, skb->len, 0); \
-} while (0)
-
-int ndlc_open(struct llt_ndlc *ndlc)
-{
- /* toggle reset pin */
- ndlc->ops->enable(ndlc->phy_id);
- return 0;
-}
-EXPORT_SYMBOL(ndlc_open);
-
-void ndlc_close(struct llt_ndlc *ndlc)
-{
- /* toggle reset pin */
- ndlc->ops->disable(ndlc->phy_id);
-}
-EXPORT_SYMBOL(ndlc_close);
-
-int ndlc_send(struct llt_ndlc *ndlc, struct sk_buff *skb)
-{
- /* add ndlc header */
- u8 pcb = PCB_TYPE_DATAFRAME | PCB_DATAFRAME_RETRANSMIT_NO |
- PCB_FRAME_CRC_INFO_NOTPRESENT;
-
- *skb_push(skb, 1) = pcb;
- skb_queue_tail(&ndlc->send_q, skb);
-
- schedule_work(&ndlc->sm_work);
-
- return 0;
-}
-EXPORT_SYMBOL(ndlc_send);
-
-static void llt_ndlc_send_queue(struct llt_ndlc *ndlc)
-{
- struct sk_buff *skb;
- int r;
- unsigned long time_sent;
-
- if (ndlc->send_q.qlen)
- pr_debug("sendQlen=%d unackQlen=%d\n",
- ndlc->send_q.qlen, ndlc->ack_pending_q.qlen);
-
- while (ndlc->send_q.qlen) {
- skb = skb_dequeue(&ndlc->send_q);
- NDLC_DUMP_SKB("ndlc frame written", skb);
- r = ndlc->ops->write(ndlc->phy_id, skb);
- if (r < 0) {
- ndlc->hard_fault = r;
- break;
- }
- time_sent = jiffies;
- *(unsigned long *)skb->cb = time_sent;
-
- skb_queue_tail(&ndlc->ack_pending_q, skb);
-
- /* start timer t1 for ndlc aknowledge */
- ndlc->t1_active = true;
- mod_timer(&ndlc->t1_timer, time_sent +
- msecs_to_jiffies(NDLC_TIMER_T1));
- /* start timer t2 for chip availability */
- ndlc->t2_active = true;
- mod_timer(&ndlc->t2_timer, time_sent +
- msecs_to_jiffies(NDLC_TIMER_T2));
- }
-}
-
-static void llt_ndlc_requeue_data_pending(struct llt_ndlc *ndlc)
-{
- struct sk_buff *skb;
- u8 pcb;
-
- while ((skb = skb_dequeue_tail(&ndlc->ack_pending_q))) {
- pcb = skb->data[0];
- switch (pcb & PCB_TYPE_MASK) {
- case PCB_TYPE_SUPERVISOR:
- skb->data[0] = (pcb & ~PCB_SUPERVISOR_RETRANSMIT_MASK) |
- PCB_SUPERVISOR_RETRANSMIT_YES;
- break;
- case PCB_TYPE_DATAFRAME:
- skb->data[0] = (pcb & ~PCB_DATAFRAME_RETRANSMIT_MASK) |
- PCB_DATAFRAME_RETRANSMIT_YES;
- break;
- default:
- pr_err("UNKNOWN Packet Control Byte=%d\n", pcb);
- kfree_skb(skb);
- continue;
- }
- skb_queue_head(&ndlc->send_q, skb);
- }
-}
-
-static void llt_ndlc_rcv_queue(struct llt_ndlc *ndlc)
-{
- struct sk_buff *skb;
- u8 pcb;
- unsigned long time_sent;
-
- if (ndlc->rcv_q.qlen)
- pr_debug("rcvQlen=%d\n", ndlc->rcv_q.qlen);
-
- while ((skb = skb_dequeue(&ndlc->rcv_q)) != NULL) {
- pcb = skb->data[0];
- skb_pull(skb, 1);
- if ((pcb & PCB_TYPE_MASK) == PCB_TYPE_SUPERVISOR) {
- switch (pcb & PCB_SYNC_MASK) {
- case PCB_SYNC_ACK:
- del_timer_sync(&ndlc->t1_timer);
- del_timer_sync(&ndlc->t2_timer);
- ndlc->t2_active = false;
- ndlc->t1_active = false;
- break;
- case PCB_SYNC_NACK:
- llt_ndlc_requeue_data_pending(ndlc);
- llt_ndlc_send_queue(ndlc);
- /* start timer t1 for ndlc aknowledge */
- time_sent = jiffies;
- ndlc->t1_active = true;
- mod_timer(&ndlc->t1_timer, time_sent +
- msecs_to_jiffies(NDLC_TIMER_T1));
- break;
- case PCB_SYNC_WAIT:
- time_sent = jiffies;
- ndlc->t1_active = true;
- mod_timer(&ndlc->t1_timer, time_sent +
- msecs_to_jiffies(NDLC_TIMER_T1_WAIT));
- break;
- default:
- pr_err("UNKNOWN Packet Control Byte=%d\n", pcb);
- kfree_skb(skb);
- break;
- }
- } else {
- nci_recv_frame(ndlc->ndev, skb);
- }
- }
-}
-
-static void llt_ndlc_sm_work(struct work_struct *work)
-{
- struct llt_ndlc *ndlc = container_of(work, struct llt_ndlc, sm_work);
-
- llt_ndlc_send_queue(ndlc);
- llt_ndlc_rcv_queue(ndlc);
-
- if (ndlc->t1_active && timer_pending(&ndlc->t1_timer) == 0) {
- pr_debug
- ("Handle T1(recv SUPERVISOR) elapsed (T1 now inactive)\n");
- ndlc->t1_active = false;
-
- llt_ndlc_requeue_data_pending(ndlc);
- llt_ndlc_send_queue(ndlc);
- }
-
- if (ndlc->t2_active && timer_pending(&ndlc->t2_timer) == 0) {
- pr_debug("Handle T2(recv DATA) elapsed (T2 now inactive)\n");
- ndlc->t2_active = false;
- ndlc->t1_active = false;
- del_timer_sync(&ndlc->t1_timer);
- del_timer_sync(&ndlc->t2_timer);
- ndlc_close(ndlc);
- ndlc->hard_fault = -EREMOTEIO;
- }
-}
-
-void ndlc_recv(struct llt_ndlc *ndlc, struct sk_buff *skb)
-{
- if (skb == NULL) {
- pr_err("NULL Frame -> link is dead\n");
- ndlc->hard_fault = -EREMOTEIO;
- ndlc_close(ndlc);
- } else {
- NDLC_DUMP_SKB("incoming frame", skb);
- skb_queue_tail(&ndlc->rcv_q, skb);
- }
-
- schedule_work(&ndlc->sm_work);
-}
-EXPORT_SYMBOL(ndlc_recv);
-
-static void ndlc_t1_timeout(unsigned long data)
-{
- struct llt_ndlc *ndlc = (struct llt_ndlc *)data;
-
- pr_debug("\n");
-
- schedule_work(&ndlc->sm_work);
-}
-
-static void ndlc_t2_timeout(unsigned long data)
-{
- struct llt_ndlc *ndlc = (struct llt_ndlc *)data;
-
- pr_debug("\n");
-
- schedule_work(&ndlc->sm_work);
-}
-
-int ndlc_probe(void *phy_id, struct nfc_phy_ops *phy_ops, struct device *dev,
- int phy_headroom, int phy_tailroom, struct llt_ndlc **ndlc_id)
-{
- struct llt_ndlc *ndlc;
-
- ndlc = devm_kzalloc(dev, sizeof(struct llt_ndlc), GFP_KERNEL);
- if (!ndlc)
- return -ENOMEM;
-
- ndlc->ops = phy_ops;
- ndlc->phy_id = phy_id;
- ndlc->dev = dev;
-
- *ndlc_id = ndlc;
-
- /* initialize timers */
- init_timer(&ndlc->t1_timer);
- ndlc->t1_timer.data = (unsigned long)ndlc;
- ndlc->t1_timer.function = ndlc_t1_timeout;
-
- init_timer(&ndlc->t2_timer);
- ndlc->t2_timer.data = (unsigned long)ndlc;
- ndlc->t2_timer.function = ndlc_t2_timeout;
-
- skb_queue_head_init(&ndlc->rcv_q);
- skb_queue_head_init(&ndlc->send_q);
- skb_queue_head_init(&ndlc->ack_pending_q);
-
- INIT_WORK(&ndlc->sm_work, llt_ndlc_sm_work);
-
- return st21nfcb_nci_probe(ndlc, phy_headroom, phy_tailroom);
-}
-EXPORT_SYMBOL(ndlc_probe);
-
-void ndlc_remove(struct llt_ndlc *ndlc)
-{
- /* cancel timers */
- del_timer_sync(&ndlc->t1_timer);
- del_timer_sync(&ndlc->t2_timer);
- ndlc->t2_active = false;
- ndlc->t1_active = false;
-
- skb_queue_purge(&ndlc->rcv_q);
- skb_queue_purge(&ndlc->send_q);
-
- st21nfcb_nci_remove(ndlc->ndev);
-}
-EXPORT_SYMBOL(ndlc_remove);
diff --git a/drivers/nfc/st21nfcb/ndlc.h b/drivers/nfc/st21nfcb/ndlc.h
deleted file mode 100644
index b28140e0c..000000000
--- a/drivers/nfc/st21nfcb/ndlc.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * NCI based Driver for STMicroelectronics NFC Chip
- *
- * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef __LOCAL_NDLC_H_
-#define __LOCAL_NDLC_H_
-
-#include <linux/skbuff.h>
-#include <net/nfc/nfc.h>
-
-/* Low Level Transport description */
-struct llt_ndlc {
- struct nci_dev *ndev;
- struct nfc_phy_ops *ops;
- void *phy_id;
-
- struct timer_list t1_timer;
- bool t1_active;
-
- struct timer_list t2_timer;
- bool t2_active;
-
- struct sk_buff_head rcv_q;
- struct sk_buff_head send_q;
- struct sk_buff_head ack_pending_q;
-
- struct work_struct sm_work;
-
- struct device *dev;
-
- /*
- * < 0 if hardware error occured
- * and prevents normal operation.
- */
- int hard_fault;
-};
-
-int ndlc_open(struct llt_ndlc *ndlc);
-void ndlc_close(struct llt_ndlc *ndlc);
-int ndlc_send(struct llt_ndlc *ndlc, struct sk_buff *skb);
-void ndlc_recv(struct llt_ndlc *ndlc, struct sk_buff *skb);
-int ndlc_probe(void *phy_id, struct nfc_phy_ops *phy_ops, struct device *dev,
- int phy_headroom, int phy_tailroom, struct llt_ndlc **ndlc_id);
-void ndlc_remove(struct llt_ndlc *ndlc);
-#endif /* __LOCAL_NDLC_H__ */
diff --git a/drivers/nfc/st21nfcb/st21nfcb.c b/drivers/nfc/st21nfcb/st21nfcb.c
deleted file mode 100644
index c7dc282d5..000000000
--- a/drivers/nfc/st21nfcb/st21nfcb.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * NCI based Driver for STMicroelectronics NFC Chip
- *
- * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/module.h>
-#include <linux/nfc.h>
-#include <net/nfc/nci.h>
-#include <net/nfc/nci_core.h>
-
-#include "st21nfcb.h"
-#include "st21nfcb_se.h"
-
-#define DRIVER_DESC "NCI NFC driver for ST21NFCB"
-
-#define ST21NFCB_NCI1_X_PROPRIETARY_ISO15693 0x83
-
-static int st21nfcb_nci_open(struct nci_dev *ndev)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
- int r;
-
- if (test_and_set_bit(ST21NFCB_NCI_RUNNING, &info->flags))
- return 0;
-
- r = ndlc_open(info->ndlc);
- if (r)
- clear_bit(ST21NFCB_NCI_RUNNING, &info->flags);
-
- return r;
-}
-
-static int st21nfcb_nci_close(struct nci_dev *ndev)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
-
- if (!test_and_clear_bit(ST21NFCB_NCI_RUNNING, &info->flags))
- return 0;
-
- ndlc_close(info->ndlc);
-
- return 0;
-}
-
-static int st21nfcb_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
-
- skb->dev = (void *)ndev;
-
- if (!test_bit(ST21NFCB_NCI_RUNNING, &info->flags))
- return -EBUSY;
-
- return ndlc_send(info->ndlc, skb);
-}
-
-static __u32 st21nfcb_nci_get_rfprotocol(struct nci_dev *ndev,
- __u8 rf_protocol)
-{
- return rf_protocol == ST21NFCB_NCI1_X_PROPRIETARY_ISO15693 ?
- NFC_PROTO_ISO15693_MASK : 0;
-}
-
-static struct nci_ops st21nfcb_nci_ops = {
- .open = st21nfcb_nci_open,
- .close = st21nfcb_nci_close,
- .send = st21nfcb_nci_send,
- .get_rfprotocol = st21nfcb_nci_get_rfprotocol,
- .discover_se = st21nfcb_nci_discover_se,
- .enable_se = st21nfcb_nci_enable_se,
- .disable_se = st21nfcb_nci_disable_se,
- .se_io = st21nfcb_nci_se_io,
- .hci_load_session = st21nfcb_hci_load_session,
- .hci_event_received = st21nfcb_hci_event_received,
- .hci_cmd_received = st21nfcb_hci_cmd_received,
-};
-
-int st21nfcb_nci_probe(struct llt_ndlc *ndlc, int phy_headroom,
- int phy_tailroom)
-{
- struct st21nfcb_nci_info *info;
- int r;
- u32 protocols;
-
- info = devm_kzalloc(ndlc->dev,
- sizeof(struct st21nfcb_nci_info), GFP_KERNEL);
- if (!info)
- return -ENOMEM;
-
- protocols = NFC_PROTO_JEWEL_MASK
- | NFC_PROTO_MIFARE_MASK
- | NFC_PROTO_FELICA_MASK
- | NFC_PROTO_ISO14443_MASK
- | NFC_PROTO_ISO14443_B_MASK
- | NFC_PROTO_ISO15693_MASK
- | NFC_PROTO_NFC_DEP_MASK;
-
- ndlc->ndev = nci_allocate_device(&st21nfcb_nci_ops, protocols,
- phy_headroom, phy_tailroom);
- if (!ndlc->ndev) {
- pr_err("Cannot allocate nfc ndev\n");
- return -ENOMEM;
- }
- info->ndlc = ndlc;
-
- nci_set_drvdata(ndlc->ndev, info);
-
- r = nci_register_device(ndlc->ndev);
- if (r) {
- pr_err("Cannot register nfc device to nci core\n");
- nci_free_device(ndlc->ndev);
- return r;
- }
-
- return st21nfcb_se_init(ndlc->ndev);
-}
-EXPORT_SYMBOL_GPL(st21nfcb_nci_probe);
-
-void st21nfcb_nci_remove(struct nci_dev *ndev)
-{
- nci_unregister_device(ndev);
- nci_free_device(ndev);
-}
-EXPORT_SYMBOL_GPL(st21nfcb_nci_remove);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/nfc/st21nfcb/st21nfcb.h b/drivers/nfc/st21nfcb/st21nfcb.h
deleted file mode 100644
index 5ef8a58c9..000000000
--- a/drivers/nfc/st21nfcb/st21nfcb.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * NCI based Driver for STMicroelectronics NFC Chip
- *
- * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef __LOCAL_ST21NFCB_H_
-#define __LOCAL_ST21NFCB_H_
-
-#include "st21nfcb_se.h"
-#include "ndlc.h"
-
-/* Define private flags: */
-#define ST21NFCB_NCI_RUNNING 1
-
-struct st21nfcb_nci_info {
- struct llt_ndlc *ndlc;
- unsigned long flags;
- struct st21nfcb_se_info se_info;
-};
-
-void st21nfcb_nci_remove(struct nci_dev *ndev);
-int st21nfcb_nci_probe(struct llt_ndlc *ndlc, int phy_headroom,
- int phy_tailroom);
-
-#endif /* __LOCAL_ST21NFCB_H_ */
diff --git a/drivers/nfc/st21nfcb/st21nfcb_se.c b/drivers/nfc/st21nfcb/st21nfcb_se.c
deleted file mode 100644
index 24862a525..000000000
--- a/drivers/nfc/st21nfcb/st21nfcb_se.c
+++ /dev/null
@@ -1,713 +0,0 @@
-/*
- * NCI based Driver for STMicroelectronics NFC Chip
- *
- * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/module.h>
-#include <linux/nfc.h>
-#include <linux/delay.h>
-#include <net/nfc/nci.h>
-#include <net/nfc/nci_core.h>
-
-#include "st21nfcb.h"
-#include "st21nfcb_se.h"
-
-struct st21nfcb_pipe_info {
- u8 pipe_state;
- u8 src_host_id;
- u8 src_gate_id;
- u8 dst_host_id;
- u8 dst_gate_id;
-} __packed;
-
-/* Hosts */
-#define ST21NFCB_HOST_CONTROLLER_ID 0x00
-#define ST21NFCB_TERMINAL_HOST_ID 0x01
-#define ST21NFCB_UICC_HOST_ID 0x02
-#define ST21NFCB_ESE_HOST_ID 0xc0
-
-/* Gates */
-#define ST21NFCB_DEVICE_MGNT_GATE 0x01
-#define ST21NFCB_APDU_READER_GATE 0xf0
-#define ST21NFCB_CONNECTIVITY_GATE 0x41
-
-/* Pipes */
-#define ST21NFCB_DEVICE_MGNT_PIPE 0x02
-
-/* Connectivity pipe only */
-#define ST21NFCB_SE_COUNT_PIPE_UICC 0x01
-/* Connectivity + APDU Reader pipe */
-#define ST21NFCB_SE_COUNT_PIPE_EMBEDDED 0x02
-
-#define ST21NFCB_SE_TO_HOT_PLUG 1000 /* msecs */
-#define ST21NFCB_SE_TO_PIPES 2000
-
-#define ST21NFCB_EVT_HOT_PLUG_IS_INHIBITED(x) (x->data[0] & 0x80)
-
-#define NCI_HCI_APDU_PARAM_ATR 0x01
-#define NCI_HCI_ADMIN_PARAM_SESSION_IDENTITY 0x01
-#define NCI_HCI_ADMIN_PARAM_WHITELIST 0x03
-#define NCI_HCI_ADMIN_PARAM_HOST_LIST 0x04
-
-#define ST21NFCB_EVT_SE_HARD_RESET 0x20
-#define ST21NFCB_EVT_TRANSMIT_DATA 0x10
-#define ST21NFCB_EVT_WTX_REQUEST 0x11
-#define ST21NFCB_EVT_SE_SOFT_RESET 0x11
-#define ST21NFCB_EVT_SE_END_OF_APDU_TRANSFER 0x21
-#define ST21NFCB_EVT_HOT_PLUG 0x03
-
-#define ST21NFCB_SE_MODE_OFF 0x00
-#define ST21NFCB_SE_MODE_ON 0x01
-
-#define ST21NFCB_EVT_CONNECTIVITY 0x10
-#define ST21NFCB_EVT_TRANSACTION 0x12
-
-#define ST21NFCB_DM_GETINFO 0x13
-#define ST21NFCB_DM_GETINFO_PIPE_LIST 0x02
-#define ST21NFCB_DM_GETINFO_PIPE_INFO 0x01
-#define ST21NFCB_DM_PIPE_CREATED 0x02
-#define ST21NFCB_DM_PIPE_OPEN 0x04
-#define ST21NFCB_DM_RF_ACTIVE 0x80
-#define ST21NFCB_DM_DISCONNECT 0x30
-
-#define ST21NFCB_DM_IS_PIPE_OPEN(p) \
- ((p & 0x0f) == (ST21NFCB_DM_PIPE_CREATED | ST21NFCB_DM_PIPE_OPEN))
-
-#define ST21NFCB_ATR_DEFAULT_BWI 0x04
-
-/*
- * WT = 2^BWI/10[s], convert into msecs and add a secure
- * room by increasing by 2 this timeout
- */
-#define ST21NFCB_BWI_TO_TIMEOUT(x) ((1 << x) * 200)
-#define ST21NFCB_ATR_GET_Y_FROM_TD(x) (x >> 4)
-
-/* If TA is present bit 0 is set */
-#define ST21NFCB_ATR_TA_PRESENT(x) (x & 0x01)
-/* If TB is present bit 1 is set */
-#define ST21NFCB_ATR_TB_PRESENT(x) (x & 0x02)
-
-#define ST21NFCB_NUM_DEVICES 256
-
-static DECLARE_BITMAP(dev_mask, ST21NFCB_NUM_DEVICES);
-
-/* Here are the mandatory pipe for st21nfcb */
-static struct nci_hci_gate st21nfcb_gates[] = {
- {NCI_HCI_ADMIN_GATE, NCI_HCI_ADMIN_PIPE,
- ST21NFCB_HOST_CONTROLLER_ID},
- {NCI_HCI_LINK_MGMT_GATE, NCI_HCI_LINK_MGMT_PIPE,
- ST21NFCB_HOST_CONTROLLER_ID},
- {ST21NFCB_DEVICE_MGNT_GATE, ST21NFCB_DEVICE_MGNT_PIPE,
- ST21NFCB_HOST_CONTROLLER_ID},
-
- /* Secure element pipes are created by secure element host */
- {ST21NFCB_CONNECTIVITY_GATE, NCI_HCI_DO_NOT_OPEN_PIPE,
- ST21NFCB_HOST_CONTROLLER_ID},
- {ST21NFCB_APDU_READER_GATE, NCI_HCI_DO_NOT_OPEN_PIPE,
- ST21NFCB_HOST_CONTROLLER_ID},
-};
-
-static u8 st21nfcb_se_get_bwi(struct nci_dev *ndev)
-{
- int i;
- u8 td;
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
-
- /* Bits 8 to 5 of the first TB for T=1 encode BWI from zero to nine */
- for (i = 1; i < ST21NFCB_ESE_MAX_LENGTH; i++) {
- td = ST21NFCB_ATR_GET_Y_FROM_TD(info->se_info.atr[i]);
- if (ST21NFCB_ATR_TA_PRESENT(td))
- i++;
- if (ST21NFCB_ATR_TB_PRESENT(td)) {
- i++;
- return info->se_info.atr[i] >> 4;
- }
- }
- return ST21NFCB_ATR_DEFAULT_BWI;
-}
-
-static void st21nfcb_se_get_atr(struct nci_dev *ndev)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
- int r;
- struct sk_buff *skb;
-
- r = nci_hci_get_param(ndev, ST21NFCB_APDU_READER_GATE,
- NCI_HCI_APDU_PARAM_ATR, &skb);
- if (r < 0)
- return;
-
- if (skb->len <= ST21NFCB_ESE_MAX_LENGTH) {
- memcpy(info->se_info.atr, skb->data, skb->len);
-
- info->se_info.wt_timeout =
- ST21NFCB_BWI_TO_TIMEOUT(st21nfcb_se_get_bwi(ndev));
- }
- kfree_skb(skb);
-}
-
-int st21nfcb_hci_load_session(struct nci_dev *ndev)
-{
- int i, j, r;
- struct sk_buff *skb_pipe_list, *skb_pipe_info;
- struct st21nfcb_pipe_info *dm_pipe_info;
- u8 pipe_list[] = { ST21NFCB_DM_GETINFO_PIPE_LIST,
- ST21NFCB_TERMINAL_HOST_ID};
- u8 pipe_info[] = { ST21NFCB_DM_GETINFO_PIPE_INFO,
- ST21NFCB_TERMINAL_HOST_ID, 0};
-
- /* On ST21NFCB device pipes number are dynamics
- * If pipes are already created, hci_dev_up will fail.
- * Doing a clear all pipe is a bad idea because:
- * - It does useless EEPROM cycling
- * - It might cause issue for secure elements support
- * (such as removing connectivity or APDU reader pipe)
- * A better approach on ST21NFCB is to:
- * - get a pipe list for each host.
- * (eg: ST21NFCB_HOST_CONTROLLER_ID for now).
- * (TODO Later on UICC HOST and eSE HOST)
- * - get pipe information
- * - match retrieved pipe list in st21nfcb_gates
- * ST21NFCB_DEVICE_MGNT_GATE is a proprietary gate
- * with ST21NFCB_DEVICE_MGNT_PIPE.
- * Pipe can be closed and need to be open.
- */
- r = nci_hci_connect_gate(ndev, ST21NFCB_HOST_CONTROLLER_ID,
- ST21NFCB_DEVICE_MGNT_GATE,
- ST21NFCB_DEVICE_MGNT_PIPE);
- if (r < 0)
- goto free_info;
-
- /* Get pipe list */
- r = nci_hci_send_cmd(ndev, ST21NFCB_DEVICE_MGNT_GATE,
- ST21NFCB_DM_GETINFO, pipe_list, sizeof(pipe_list),
- &skb_pipe_list);
- if (r < 0)
- goto free_info;
-
- /* Complete the existing gate_pipe table */
- for (i = 0; i < skb_pipe_list->len; i++) {
- pipe_info[2] = skb_pipe_list->data[i];
- r = nci_hci_send_cmd(ndev, ST21NFCB_DEVICE_MGNT_GATE,
- ST21NFCB_DM_GETINFO, pipe_info,
- sizeof(pipe_info), &skb_pipe_info);
-
- if (r)
- continue;
-
- /*
- * Match pipe ID and gate ID
- * Output format from ST21NFC_DM_GETINFO is:
- * - pipe state (1byte)
- * - source hid (1byte)
- * - source gid (1byte)
- * - destination hid (1byte)
- * - destination gid (1byte)
- */
- dm_pipe_info = (struct st21nfcb_pipe_info *)skb_pipe_info->data;
- if (dm_pipe_info->dst_gate_id == ST21NFCB_APDU_READER_GATE &&
- dm_pipe_info->src_host_id != ST21NFCB_ESE_HOST_ID) {
- pr_err("Unexpected apdu_reader pipe on host %x\n",
- dm_pipe_info->src_host_id);
- continue;
- }
-
- for (j = 0; (j < ARRAY_SIZE(st21nfcb_gates)) &&
- (st21nfcb_gates[j].gate != dm_pipe_info->dst_gate_id); j++)
- ;
-
- if (j < ARRAY_SIZE(st21nfcb_gates) &&
- st21nfcb_gates[j].gate == dm_pipe_info->dst_gate_id &&
- ST21NFCB_DM_IS_PIPE_OPEN(dm_pipe_info->pipe_state)) {
- st21nfcb_gates[j].pipe = pipe_info[2];
-
- ndev->hci_dev->gate2pipe[st21nfcb_gates[j].gate] =
- st21nfcb_gates[j].pipe;
- ndev->hci_dev->pipes[st21nfcb_gates[j].pipe].gate =
- st21nfcb_gates[j].gate;
- ndev->hci_dev->pipes[st21nfcb_gates[j].pipe].host =
- dm_pipe_info->src_host_id;
- }
- }
-
- memcpy(ndev->hci_dev->init_data.gates, st21nfcb_gates,
- sizeof(st21nfcb_gates));
-
-free_info:
- kfree_skb(skb_pipe_info);
- kfree_skb(skb_pipe_list);
- return r;
-}
-EXPORT_SYMBOL_GPL(st21nfcb_hci_load_session);
-
-static void st21nfcb_hci_admin_event_received(struct nci_dev *ndev,
- u8 event, struct sk_buff *skb)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
-
- switch (event) {
- case ST21NFCB_EVT_HOT_PLUG:
- if (info->se_info.se_active) {
- if (!ST21NFCB_EVT_HOT_PLUG_IS_INHIBITED(skb)) {
- del_timer_sync(&info->se_info.se_active_timer);
- info->se_info.se_active = false;
- complete(&info->se_info.req_completion);
- } else {
- mod_timer(&info->se_info.se_active_timer,
- jiffies +
- msecs_to_jiffies(ST21NFCB_SE_TO_PIPES));
- }
- }
- break;
- }
-}
-
-static int st21nfcb_hci_apdu_reader_event_received(struct nci_dev *ndev,
- u8 event,
- struct sk_buff *skb)
-{
- int r = 0;
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
-
- pr_debug("apdu reader gate event: %x\n", event);
-
- switch (event) {
- case ST21NFCB_EVT_TRANSMIT_DATA:
- del_timer_sync(&info->se_info.bwi_timer);
- info->se_info.bwi_active = false;
- info->se_info.cb(info->se_info.cb_context,
- skb->data, skb->len, 0);
- break;
- case ST21NFCB_EVT_WTX_REQUEST:
- mod_timer(&info->se_info.bwi_timer, jiffies +
- msecs_to_jiffies(info->se_info.wt_timeout));
- break;
- }
-
- kfree_skb(skb);
- return r;
-}
-
-/*
- * Returns:
- * <= 0: driver handled the event, skb consumed
- * 1: driver does not handle the event, please do standard processing
- */
-static int st21nfcb_hci_connectivity_event_received(struct nci_dev *ndev,
- u8 host, u8 event,
- struct sk_buff *skb)
-{
- int r = 0;
- struct device *dev = &ndev->nfc_dev->dev;
- struct nfc_evt_transaction *transaction;
-
- pr_debug("connectivity gate event: %x\n", event);
-
- switch (event) {
- case ST21NFCB_EVT_CONNECTIVITY:
-
- break;
- case ST21NFCB_EVT_TRANSACTION:
- /* According to specification etsi 102 622
- * 11.2.2.4 EVT_TRANSACTION Table 52
- * Description Tag Length
- * AID 81 5 to 16
- * PARAMETERS 82 0 to 255
- */
- if (skb->len < NFC_MIN_AID_LENGTH + 2 &&
- skb->data[0] != NFC_EVT_TRANSACTION_AID_TAG)
- return -EPROTO;
-
- transaction = (struct nfc_evt_transaction *)devm_kzalloc(dev,
- skb->len - 2, GFP_KERNEL);
-
- transaction->aid_len = skb->data[1];
- memcpy(transaction->aid, &skb->data[2], transaction->aid_len);
-
- /* Check next byte is PARAMETERS tag (82) */
- if (skb->data[transaction->aid_len + 2] !=
- NFC_EVT_TRANSACTION_PARAMS_TAG)
- return -EPROTO;
-
- transaction->params_len = skb->data[transaction->aid_len + 3];
- memcpy(transaction->params, skb->data +
- transaction->aid_len + 4, transaction->params_len);
-
- r = nfc_se_transaction(ndev->nfc_dev, host, transaction);
- break;
- default:
- return 1;
- }
- kfree_skb(skb);
- return r;
-}
-
-void st21nfcb_hci_event_received(struct nci_dev *ndev, u8 pipe,
- u8 event, struct sk_buff *skb)
-{
- u8 gate = ndev->hci_dev->pipes[pipe].gate;
- u8 host = ndev->hci_dev->pipes[pipe].host;
-
- switch (gate) {
- case NCI_HCI_ADMIN_GATE:
- st21nfcb_hci_admin_event_received(ndev, event, skb);
- break;
- case ST21NFCB_APDU_READER_GATE:
- st21nfcb_hci_apdu_reader_event_received(ndev, event, skb);
- break;
- case ST21NFCB_CONNECTIVITY_GATE:
- st21nfcb_hci_connectivity_event_received(ndev, host, event,
- skb);
- break;
- }
-}
-EXPORT_SYMBOL_GPL(st21nfcb_hci_event_received);
-
-
-void st21nfcb_hci_cmd_received(struct nci_dev *ndev, u8 pipe, u8 cmd,
- struct sk_buff *skb)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
- u8 gate = ndev->hci_dev->pipes[pipe].gate;
-
- pr_debug("cmd: %x\n", cmd);
-
- switch (cmd) {
- case NCI_HCI_ANY_OPEN_PIPE:
- if (gate != ST21NFCB_APDU_READER_GATE &&
- ndev->hci_dev->pipes[pipe].host != ST21NFCB_UICC_HOST_ID)
- ndev->hci_dev->count_pipes++;
-
- if (ndev->hci_dev->count_pipes ==
- ndev->hci_dev->expected_pipes) {
- del_timer_sync(&info->se_info.se_active_timer);
- info->se_info.se_active = false;
- ndev->hci_dev->count_pipes = 0;
- complete(&info->se_info.req_completion);
- }
- break;
- }
-}
-EXPORT_SYMBOL_GPL(st21nfcb_hci_cmd_received);
-
-/*
- * Remarks: On some early st21nfcb firmware, nci_nfcee_mode_set(0)
- * is rejected
- */
-static int st21nfcb_nci_control_se(struct nci_dev *ndev, u8 se_idx,
- u8 state)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
- int r;
- struct sk_buff *sk_host_list;
- u8 host_id;
-
- switch (se_idx) {
- case ST21NFCB_UICC_HOST_ID:
- ndev->hci_dev->count_pipes = 0;
- ndev->hci_dev->expected_pipes = ST21NFCB_SE_COUNT_PIPE_UICC;
- break;
- case ST21NFCB_ESE_HOST_ID:
- ndev->hci_dev->count_pipes = 0;
- ndev->hci_dev->expected_pipes = ST21NFCB_SE_COUNT_PIPE_EMBEDDED;
- break;
- default:
- return -EINVAL;
- }
-
- /*
- * Wait for an EVT_HOT_PLUG in order to
- * retrieve a relevant host list.
- */
- reinit_completion(&info->se_info.req_completion);
- r = nci_nfcee_mode_set(ndev, se_idx, NCI_NFCEE_ENABLE);
- if (r != NCI_STATUS_OK)
- return r;
-
- mod_timer(&info->se_info.se_active_timer, jiffies +
- msecs_to_jiffies(ST21NFCB_SE_TO_HOT_PLUG));
- info->se_info.se_active = true;
-
- /* Ignore return value and check in any case the host_list */
- wait_for_completion_interruptible(&info->se_info.req_completion);
-
- /* There might be some "collision" after receiving a HOT_PLUG event
- * This may cause the CLF to not answer to the next hci command.
- * There is no possible synchronization to prevent this.
- * Adding a small delay is the only way to solve the issue.
- */
- usleep_range(3000, 5000);
-
- r = nci_hci_get_param(ndev, NCI_HCI_ADMIN_GATE,
- NCI_HCI_ADMIN_PARAM_HOST_LIST, &sk_host_list);
- if (r != NCI_HCI_ANY_OK)
- return r;
-
- host_id = sk_host_list->data[sk_host_list->len - 1];
- kfree_skb(sk_host_list);
- if (state == ST21NFCB_SE_MODE_ON && host_id == se_idx)
- return se_idx;
- else if (state == ST21NFCB_SE_MODE_OFF && host_id != se_idx)
- return se_idx;
-
- return -1;
-}
-
-int st21nfcb_nci_disable_se(struct nci_dev *ndev, u32 se_idx)
-{
- int r;
-
- pr_debug("st21nfcb_nci_disable_se\n");
-
- if (se_idx == NFC_SE_EMBEDDED) {
- r = nci_hci_send_event(ndev, ST21NFCB_APDU_READER_GATE,
- ST21NFCB_EVT_SE_END_OF_APDU_TRANSFER, NULL, 0);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(st21nfcb_nci_disable_se);
-
-int st21nfcb_nci_enable_se(struct nci_dev *ndev, u32 se_idx)
-{
- int r;
-
- pr_debug("st21nfcb_nci_enable_se\n");
-
- if (se_idx == ST21NFCB_HCI_HOST_ID_ESE) {
- r = nci_hci_send_event(ndev, ST21NFCB_APDU_READER_GATE,
- ST21NFCB_EVT_SE_SOFT_RESET, NULL, 0);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(st21nfcb_nci_enable_se);
-
-static int st21nfcb_hci_network_init(struct nci_dev *ndev)
-{
- struct core_conn_create_dest_spec_params *dest_params;
- struct dest_spec_params spec_params;
- struct nci_conn_info *conn_info;
- int r, dev_num;
-
- dest_params =
- kzalloc(sizeof(struct core_conn_create_dest_spec_params) +
- sizeof(struct dest_spec_params), GFP_KERNEL);
- if (dest_params == NULL) {
- r = -ENOMEM;
- goto exit;
- }
-
- dest_params->type = NCI_DESTINATION_SPECIFIC_PARAM_NFCEE_TYPE;
- dest_params->length = sizeof(struct dest_spec_params);
- spec_params.id = ndev->hci_dev->nfcee_id;
- spec_params.protocol = NCI_NFCEE_INTERFACE_HCI_ACCESS;
- memcpy(dest_params->value, &spec_params, sizeof(struct dest_spec_params));
- 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);
- if (r != NCI_STATUS_OK)
- goto free_dest_params;
-
- conn_info = ndev->hci_dev->conn_info;
- if (!conn_info)
- goto free_dest_params;
-
- memcpy(ndev->hci_dev->init_data.gates, st21nfcb_gates,
- sizeof(st21nfcb_gates));
-
- /*
- * Session id must include the driver name + i2c bus addr
- * persistent info to discriminate 2 identical chips
- */
- dev_num = find_first_zero_bit(dev_mask, ST21NFCB_NUM_DEVICES);
- if (dev_num >= ST21NFCB_NUM_DEVICES) {
- r = -ENODEV;
- goto free_dest_params;
- }
-
- scnprintf(ndev->hci_dev->init_data.session_id,
- sizeof(ndev->hci_dev->init_data.session_id),
- "%s%2x", "ST21BH", dev_num);
-
- r = nci_hci_dev_session_init(ndev);
- if (r != NCI_HCI_ANY_OK)
- goto free_dest_params;
-
- r = nci_nfcee_mode_set(ndev, ndev->hci_dev->conn_info->id,
- NCI_NFCEE_ENABLE);
- if (r != NCI_STATUS_OK)
- goto free_dest_params;
-
-free_dest_params:
- kfree(dest_params);
-
-exit:
- return r;
-}
-
-int st21nfcb_nci_discover_se(struct nci_dev *ndev)
-{
- u8 param[2];
- int r;
- int se_count = 0;
-
- pr_debug("st21nfcb_nci_discover_se\n");
-
- r = st21nfcb_hci_network_init(ndev);
- if (r != 0)
- return r;
-
- param[0] = ST21NFCB_UICC_HOST_ID;
- param[1] = ST21NFCB_HCI_HOST_ID_ESE;
- r = nci_hci_set_param(ndev, NCI_HCI_ADMIN_GATE,
- NCI_HCI_ADMIN_PARAM_WHITELIST,
- param, sizeof(param));
- if (r != NCI_HCI_ANY_OK)
- return r;
-
- r = st21nfcb_nci_control_se(ndev, ST21NFCB_UICC_HOST_ID,
- ST21NFCB_SE_MODE_ON);
- if (r == ST21NFCB_UICC_HOST_ID) {
- nfc_add_se(ndev->nfc_dev, ST21NFCB_UICC_HOST_ID, NFC_SE_UICC);
- se_count++;
- }
-
- /* Try to enable eSE in order to check availability */
- r = st21nfcb_nci_control_se(ndev, ST21NFCB_HCI_HOST_ID_ESE,
- ST21NFCB_SE_MODE_ON);
- if (r == ST21NFCB_HCI_HOST_ID_ESE) {
- nfc_add_se(ndev->nfc_dev, ST21NFCB_HCI_HOST_ID_ESE,
- NFC_SE_EMBEDDED);
- se_count++;
- st21nfcb_se_get_atr(ndev);
- }
-
- return !se_count;
-}
-EXPORT_SYMBOL_GPL(st21nfcb_nci_discover_se);
-
-int st21nfcb_nci_se_io(struct nci_dev *ndev, u32 se_idx,
- u8 *apdu, size_t apdu_length,
- se_io_cb_t cb, void *cb_context)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
-
- pr_debug("\n");
-
- switch (se_idx) {
- case ST21NFCB_HCI_HOST_ID_ESE:
- info->se_info.cb = cb;
- info->se_info.cb_context = cb_context;
- mod_timer(&info->se_info.bwi_timer, jiffies +
- msecs_to_jiffies(info->se_info.wt_timeout));
- info->se_info.bwi_active = true;
- return nci_hci_send_event(ndev, ST21NFCB_APDU_READER_GATE,
- ST21NFCB_EVT_TRANSMIT_DATA, apdu,
- apdu_length);
- default:
- return -ENODEV;
- }
-}
-EXPORT_SYMBOL(st21nfcb_nci_se_io);
-
-static void st21nfcb_se_wt_timeout(unsigned long data)
-{
- /*
- * No answer from the secure element
- * within the defined timeout.
- * Let's send a reset request as recovery procedure.
- * According to the situation, we first try to send a software reset
- * to the secure element. If the next command is still not
- * answering in time, we send to the CLF a secure element hardware
- * reset request.
- */
- /* hardware reset managed through VCC_UICC_OUT power supply */
- u8 param = 0x01;
- struct st21nfcb_nci_info *info = (struct st21nfcb_nci_info *) data;
-
- pr_debug("\n");
-
- info->se_info.bwi_active = false;
-
- if (!info->se_info.xch_error) {
- info->se_info.xch_error = true;
- nci_hci_send_event(info->ndlc->ndev, ST21NFCB_APDU_READER_GATE,
- ST21NFCB_EVT_SE_SOFT_RESET, NULL, 0);
- } else {
- info->se_info.xch_error = false;
- nci_hci_send_event(info->ndlc->ndev, ST21NFCB_DEVICE_MGNT_GATE,
- ST21NFCB_EVT_SE_HARD_RESET, &param, 1);
- }
- info->se_info.cb(info->se_info.cb_context, NULL, 0, -ETIME);
-}
-
-static void st21nfcb_se_activation_timeout(unsigned long data)
-{
- struct st21nfcb_nci_info *info = (struct st21nfcb_nci_info *) data;
-
- pr_debug("\n");
-
- info->se_info.se_active = false;
-
- complete(&info->se_info.req_completion);
-}
-
-int st21nfcb_se_init(struct nci_dev *ndev)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
-
- init_completion(&info->se_info.req_completion);
- /* initialize timers */
- init_timer(&info->se_info.bwi_timer);
- info->se_info.bwi_timer.data = (unsigned long)info;
- info->se_info.bwi_timer.function = st21nfcb_se_wt_timeout;
- info->se_info.bwi_active = false;
-
- init_timer(&info->se_info.se_active_timer);
- info->se_info.se_active_timer.data = (unsigned long)info;
- info->se_info.se_active_timer.function =
- st21nfcb_se_activation_timeout;
- info->se_info.se_active = false;
-
- info->se_info.xch_error = false;
-
- info->se_info.wt_timeout =
- ST21NFCB_BWI_TO_TIMEOUT(ST21NFCB_ATR_DEFAULT_BWI);
-
- return 0;
-}
-EXPORT_SYMBOL(st21nfcb_se_init);
-
-void st21nfcb_se_deinit(struct nci_dev *ndev)
-{
- struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
-
- if (info->se_info.bwi_active)
- del_timer_sync(&info->se_info.bwi_timer);
- if (info->se_info.se_active)
- del_timer_sync(&info->se_info.se_active_timer);
-
- info->se_info.se_active = false;
- info->se_info.bwi_active = false;
-}
-EXPORT_SYMBOL(st21nfcb_se_deinit);
-
diff --git a/drivers/nfc/st21nfcb/st21nfcb_se.h b/drivers/nfc/st21nfcb/st21nfcb_se.h
deleted file mode 100644
index 52a323872..000000000
--- a/drivers/nfc/st21nfcb/st21nfcb_se.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * NCI based Driver for STMicroelectronics NFC Chip
- *
- * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef __LOCAL_ST21NFCB_SE_H_
-#define __LOCAL_ST21NFCB_SE_H_
-
-/*
- * ref ISO7816-3 chap 8.1. the initial character TS is followed by a
- * sequence of at most 32 characters.
- */
-#define ST21NFCB_ESE_MAX_LENGTH 33
-#define ST21NFCB_HCI_HOST_ID_ESE 0xc0
-
-struct st21nfcb_se_info {
- u8 atr[ST21NFCB_ESE_MAX_LENGTH];
- struct completion req_completion;
-
- struct timer_list bwi_timer;
- int wt_timeout; /* in msecs */
- bool bwi_active;
-
- struct timer_list se_active_timer;
- bool se_active;
-
- bool xch_error;
-
- se_io_cb_t cb;
- void *cb_context;
-};
-
-int st21nfcb_se_init(struct nci_dev *ndev);
-void st21nfcb_se_deinit(struct nci_dev *ndev);
-
-int st21nfcb_nci_discover_se(struct nci_dev *ndev);
-int st21nfcb_nci_enable_se(struct nci_dev *ndev, u32 se_idx);
-int st21nfcb_nci_disable_se(struct nci_dev *ndev, u32 se_idx);
-int st21nfcb_nci_se_io(struct nci_dev *ndev, u32 se_idx,
- u8 *apdu, size_t apdu_length,
- se_io_cb_t cb, void *cb_context);
-int st21nfcb_hci_load_session(struct nci_dev *ndev);
-void st21nfcb_hci_event_received(struct nci_dev *ndev, u8 pipe,
- u8 event, struct sk_buff *skb);
-void st21nfcb_hci_cmd_received(struct nci_dev *ndev, u8 pipe, u8 cmd,
- struct sk_buff *skb);
-
-
-#endif /* __LOCAL_ST21NFCB_NCI_H_ */