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Updated corresponding to - NFC_AR_00_6000_10.00.06_OpnSrc

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This commit is contained in:
nxf35421
2019-05-24 17:09:11 +05:30
parent 2910eb586b
commit 2a22a0e8e3
2 changed files with 131 additions and 14 deletions
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132
pn553-i2c/pn553.c
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@@ -20,7 +20,7 @@
*
* The original Work has been changed by NXP Semiconductors.
*
* Copyright (C) 2013-2014 NXP Semiconductors
* Copyright (C) 2013-2019 NXP Semiconductors
* *
* 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
@@ -81,6 +81,10 @@
#define SIG_NFC 44
#define MAX_BUFFER_SIZE 512
#define MAX_SECURE_SESSIONS 1
#define MSG_PROP_GID 0x4F
#define ESE_CLD_RST_OID 0x1E
#define ESE_CLD_RST_RSP_SIZE 0x04
/* VEN is kept ON all the time if you define the macro VEN_ALWAYS_ON.
Used for SN100 usecases */
#define VEN_ALWAYS_ON
@@ -110,6 +114,18 @@ struct pn544_dev {
unsigned int secure_timer_cnt;
struct workqueue_struct *pSecureTimerCbWq;
struct work_struct wq_task;
/* Bit value Status Remark
* b0 : 1 -> NFC_ON Driver Open should set the flag
* 0 NFC_OFF Driver release should reset this flag
* b1 : 1 -> FWDNLD If FWDNLD is going on.
* 0 Normal operation
* b2 : 1 -> ese_cold_reset sequence has been triggered from the SPI driver
* 0 -> ese_cold_reset cmd has been written by the NFC HAL
* bits b3 to b7 : Reserved for the future use.
* NOTE: Driver probe function should reset b0-b2 flags.
* The value of b3-b7 flags is undetermined.
* */
volatile uint8_t state_flags;
};
/* HiKey Compilation fix */
#ifndef HiKey_620_COMPILATION_FIX
@@ -123,6 +139,8 @@ static struct pn544_dev *pn544_dev;
static struct semaphore ese_access_sema;
static struct semaphore svdd_sync_onoff_sema;
static struct completion dwp_onoff_sema;
static struct completion ese_cold_reset_sema;
static int8_t ese_cold_reset_rsp[ESE_CLD_RST_RSP_SIZE];
static struct timer_list secure_timer;
static void release_ese_lock(p61_access_state_t p61_current_state);
int get_ese_lock(p61_access_state_t p61_current_state, int timeout);
@@ -147,6 +165,11 @@ static void pn544_disable_irq(struct pn544_dev *pn544_dev)
spin_unlock_irqrestore(&pn544_dev->irq_enabled_lock, flags);
}
static int pn544_dev_release(struct inode *inode, struct file *filp) {
pn544_dev->state_flags = 0x00;
pr_info(KERN_ALERT "Exit %s: NFC driver release \n", __func__);
return 0;
}
static irqreturn_t pn544_dev_irq_handler(int irq, void *dev_id)
{
struct pn544_dev *pn544_dev = dev_id;
@@ -169,6 +192,26 @@ static irqreturn_t pn544_dev_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
static void rcv_ese_cldrst_status(void)
{
int ret = -1;
char tmp[MAX_BUFFER_SIZE];
size_t rcount = (size_t)ese_cold_reset_rsp[2];
/* Read data: No need to wait for the interrupt */
ret = i2c_master_recv(pn544_dev->client, tmp, rcount);
if(ret == rcount){
ese_cold_reset_rsp[3] = tmp[0];
pr_info("%s NxpNciR : len = 4 > %02X%02X%02X%02X\n", __func__,ese_cold_reset_rsp[0],
ese_cold_reset_rsp[1],ese_cold_reset_rsp[2],ese_cold_reset_rsp[3]);
}else{
pr_err("%s : Failed to receive payload of the cold_rst_cmd\n",__func__);
ese_cold_reset_rsp[3] = -EIO;
}
if(pn544_dev->state_flags &(P544_FLAG_NFC_ON)){
complete(&ese_cold_reset_sema);
}
}
static ssize_t pn544_dev_read(struct file *filp, char __user *buf,
size_t count, loff_t *offset)
{
@@ -218,6 +261,17 @@ static ssize_t pn544_dev_read(struct file *filp, char __user *buf,
sIsWakeLocked = false;
}
#endif
/* if the received response for COLD_RESET_COMMAND
* Consume it in driver*/
if((pn544_dev->state_flags & P544_FLAG_ESE_COLD_RESET_FROM_DRIVER) &&
MSG_PROP_GID == tmp[0] && ESE_CLD_RST_OID == tmp[1]){
memset(&ese_cold_reset_rsp, 0, sizeof(ese_cold_reset_rsp));
memcpy(ese_cold_reset_rsp, tmp, 3);
rcv_ese_cldrst_status();
mutex_unlock(&pn544_dev->read_mutex);
return 0;
}
mutex_unlock(&pn544_dev->read_mutex);
/* pn544 seems to be slow in handling I2C read requests
@@ -270,7 +324,6 @@ static ssize_t pn544_dev_write(struct file *filp, const char __user *buf,
pr_err("%s : i2c_master_send returned %d\n", __func__, ret);
ret = -EIO;
}
/* pn544 seems to be slow in handling I2C write requests
* so add 1ms delay after I2C send oparation */
udelay(1000);
@@ -309,17 +362,71 @@ static void p61_get_access_state(struct pn544_dev *pn544_dev, p61_access_state_t
}
static void p61_access_lock(struct pn544_dev *pn544_dev)
{
pr_info("%s: Enter\n", __func__);
mutex_lock(&pn544_dev->p61_state_mutex);
pr_info("%s: Exit\n", __func__);
}
static void p61_access_unlock(struct pn544_dev *pn544_dev)
{
pr_info("%s: Enter\n", __func__);
mutex_unlock(&pn544_dev->p61_state_mutex);
pr_info("%s: Exit\n", __func__);
}
long p61_cold_reset(void)
{
long ret = 0;
unsigned int loop=0x03;
struct file filp;
int timeout = 2000; /* 2s timeout :NCI cmd timeout*/
unsigned long tempJ = msecs_to_jiffies(timeout);
uint8_t cmd_ese_cold_reset[] = {0x2F, 0x1E, 0x00};
filp.private_data = pn544_dev;
pr_info("%s: Enter", __func__);
if(pn544_dev->state_flags & P544_FLAG_FW_DNLD){
/* If FW DNLD, Operation is not permitted */
pr_err("%s : Operation is not permitted during fwdnld\n", __func__);
return -EPERM;
}
/* pn544_dev_read() should return the rsp if JNI has requested the cold reset*/
pn544_dev->state_flags |= (P544_FLAG_ESE_COLD_RESET_FROM_DRIVER);
init_completion(&ese_cold_reset_sema);
/* write command to I2C line*/
do{
ret = i2c_master_send(pn544_dev->client, cmd_ese_cold_reset, sizeof(cmd_ese_cold_reset));
if (ret == sizeof(cmd_ese_cold_reset)) {
break;
}
loop--;
usleep_range(5000, 6000);
}while(loop);
if(!loop && (ret != sizeof(cmd_ese_cold_reset)) ){
pr_err("%s : i2c_master_send returned %ld\n", __func__, ret);
pn544_dev->state_flags &= ~(P544_FLAG_ESE_COLD_RESET_FROM_DRIVER);
return -EIO;
}
pr_info("%s: NxpNciX: %ld > %02X%02X%02X \n", __func__, ret,cmd_ese_cold_reset[0],
cmd_ese_cold_reset[1],cmd_ese_cold_reset[2]);
ret = 0x00;
if(pn544_dev->state_flags & P544_FLAG_NFC_ON)/* NFC_ON */
{
/* Read is pending from the NFC service which will complete the ese_cold_reset_sema */
if(wait_for_completion_timeout(&ese_cold_reset_sema, tempJ) == 0){
pr_err("%s: Timeout", __func__);
ese_cold_reset_rsp[3] = -EAGAIN; // Failure case
}
}else { /* NFC_OFF */
/* call the pn544_dev_read() */
filp.f_flags &= ~O_NONBLOCK;
ret = pn544_dev_read(&filp, NULL,3, 0);
}
if(0x00 == ret) /* success case */
ret = ese_cold_reset_rsp[3];
pn544_dev->state_flags &= ~(P544_FLAG_ESE_COLD_RESET_FROM_DRIVER);
/* Return the status to the SPI Driver */
pr_info("%s: exit, Status:%ld", __func__,ret);
return ret;
}
EXPORT_SYMBOL(p61_cold_reset);
static int signal_handler(p61_access_state_t state, long nfc_pid)
{
struct siginfo sinfo;
@@ -377,13 +484,11 @@ static void svdd_sync_onoff(long nfc_service_pid, p61_access_state_t origin)
pr_info("svdd wait protection : released");
}
}
pr_info("%s: Exit\n", __func__);
}
static int release_svdd_wait(void)
{
pr_info("%s: Enter \n", __func__);
up(&svdd_sync_onoff_sema);
pr_info("%s: Exit\n", __func__);
return 0;
}
@@ -418,7 +523,7 @@ static int pn544_dev_open(struct inode *inode, struct file *filp)
pn544_device);
filp->private_data = pn544_dev;
pn544_dev->state_flags |= (P544_FLAG_NFC_ON);
pr_debug("%s : %d,%d\n", __func__, imajor(inode), iminor(inode));
return 0;
@@ -434,8 +539,6 @@ static int set_nfc_pid(unsigned long arg)
long pn544_dev_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
pr_info("%s :enter cmd = %u, arg = %ld\n", __func__, cmd, arg);
/* Free pass autobahn area, not protected. Use it carefullly. START */
switch(cmd)
{
@@ -494,7 +597,6 @@ long pn544_dev_ioctl(struct file *filp, unsigned int cmd,
}
} else if (arg == 1) {
/* power on */
pr_info("%s power on\n", __func__);
if (pn544_dev->firm_gpio) {
if ((current_state & (P61_STATE_WIRED|P61_STATE_SPI|P61_STATE_SPI_PRIO))== 0){
p61_update_access_state(pn544_dev, P61_STATE_IDLE, true);
@@ -513,7 +615,6 @@ long pn544_dev_ioctl(struct file *filp, unsigned int cmd,
#endif
} else if (arg == 0) {
/* power off */
pr_info("%s power off\n", __func__);
if (pn544_dev->firm_gpio) {
if ((current_state & (P61_STATE_WIRED|P61_STATE_SPI|P61_STATE_SPI_PRIO))== 0){
p61_update_access_state(pn544_dev, P61_STATE_IDLE, true);
@@ -560,6 +661,7 @@ long pn544_dev_ioctl(struct file *filp, unsigned int cmd,
if (pn544_dev->firm_gpio) {
p61_update_access_state(pn544_dev, P61_STATE_DWNLD, true);
gpio_set_value(pn544_dev->firm_gpio, 1);
pn544_dev->state_flags |= (P544_FLAG_FW_DNLD);
msleep(10);
}
} else if (arg == 5) {
@@ -572,6 +674,7 @@ long pn544_dev_ioctl(struct file *filp, unsigned int cmd,
} else if (arg == 6) {
if (pn544_dev->firm_gpio) {
gpio_set_value(pn544_dev->firm_gpio, 0);
pn544_dev->state_flags &= ~(P544_FLAG_FW_DNLD);
}
pr_info("%s FW GPIO set to 0x00 >>>>>>>\n", __func__);
}else {
@@ -993,7 +1096,6 @@ long pn544_dev_ioctl(struct file *filp, unsigned int cmd,
return -EINVAL;
}
p61_access_unlock(pn544_dev);
pr_info("%s :exit cmd = %u, arg = %ld\n", __func__, cmd, arg);
return 0;
}
EXPORT_SYMBOL(pn544_dev_ioctl);
@@ -1172,6 +1274,7 @@ static const struct file_operations pn544_dev_fops = {
.read = pn544_dev_read,
.write = pn544_dev_write,
.open = pn544_dev_open,
.release = pn544_dev_release,
.unlocked_ioctl = pn544_dev_ioctl,
};
#if DRAGON_NFC
@@ -1304,6 +1407,7 @@ static int pn544_probe(struct i2c_client *client,
pn544_dev->client = client;
pn544_dev->secure_timer_cnt = 0;
pn544_dev->state_flags = 0x00;
ret = gpio_direction_input(pn544_dev->irq_gpio);
if (ret < 0) {
pr_err("%s :not able to set irq_gpio as input\n", __func__);

13
pn553-i2c/pn553.h
View File

@@ -105,6 +105,19 @@
#define MAX_ESE_ACCESS_TIME_OUT_MS 200 /*100 milliseconds*/
/*
NFC_ON: Driver is being used by the NFC service
*/
#define P544_FLAG_NFC_ON 0x01
/*
FW_DNLD: NFC_ON and FW download is going on
*/
#define P544_FLAG_FW_DNLD 0x02
/*
FW_DNLD: NFC_ON and FW download is going on
*/
#define P544_FLAG_ESE_COLD_RESET_FROM_DRIVER 0x04
typedef enum p61_access_state{
P61_STATE_INVALID = 0x0000,
P61_STATE_IDLE = 0x0100, /* p61 is free to use */