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Updated corresponding to - NFC_AR_00_02.00_6000_12.51.00_OpnSrc

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This commit is contained in:
nxf35421
2021-02-12 22:49:38 +05:30
parent bedce83629
commit 2ec82a2bfd
10 changed files with 2023 additions and 133 deletions
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266
nfc/common.c
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@@ -1,5 +1,5 @@
/******************************************************************************
* Copyright (C) 2019-2020 NXP
* Copyright (C) 2019-2021 NXP
* *
* 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
@@ -23,10 +23,15 @@
#include "common.h"
#include "common_ese.h"
int nfc_parse_dt(struct device *dev, platform_gpio_t * nfc_gpio,
#if defined(RECOVERY_ENABLE)
#include "recovery_seq.h"
#endif
int nfc_parse_dt(struct device *dev, platform_configs_t *nfc_configs,
uint8_t interface)
{
struct device_node *np = dev->of_node;
platform_gpio_t *nfc_gpio = &nfc_configs->gpio;
if (!np) {
pr_err("nfc of_node NULL\n");
@@ -45,11 +50,6 @@ int nfc_parse_dt(struct device *dev, platform_gpio_t * nfc_gpio,
return -EINVAL;
}
pr_info("%s: irq %d\n", __func__, nfc_gpio->irq);
nfc_gpio->dwl_req = of_get_named_gpio(np, DTS_FWDN_GPIO_STR, 0);
if ((!gpio_is_valid(nfc_gpio->dwl_req))) {
pr_err("nfc dwl_req gpio invalid %d\n", nfc_gpio->dwl_req);
}
}
nfc_gpio->ven = of_get_named_gpio(np, DTS_VEN_GPIO_STR, 0);
if ((!gpio_is_valid(nfc_gpio->ven))) {
@@ -57,6 +57,11 @@ int nfc_parse_dt(struct device *dev, platform_gpio_t * nfc_gpio,
return -EINVAL;
}
nfc_gpio->dwl_req = of_get_named_gpio(np, DTS_FWDN_GPIO_STR, 0);
if ((!gpio_is_valid(nfc_gpio->dwl_req))) {
pr_warn("nfc dwl_req gpio invalid %d\n", nfc_gpio->dwl_req);
}
pr_info("%s: %d, %d, %d, %d\n", __func__, nfc_gpio->irq, nfc_gpio->ven,
nfc_gpio->dwl_req);
return 0;
@@ -68,7 +73,8 @@ void set_valid_gpio(int gpio, int value)
pr_debug("%s gpio %d value %d\n", __func__, gpio, value);
gpio_set_value(gpio, value);
// hardware dependent delay
usleep_range(10000, 10100);
usleep_range(NFC_GPIO_SET_WAIT_TIME_USEC,
NFC_GPIO_SET_WAIT_TIME_USEC + 100);
}
}
@@ -84,15 +90,17 @@ int get_valid_gpio(int gpio)
void gpio_set_ven(struct nfc_dev *nfc_dev, int value)
{
if (gpio_get_value(nfc_dev->gpio.ven) != value) {
platform_gpio_t *nfc_gpio = &nfc_dev->configs.gpio;
if (gpio_get_value(nfc_gpio->ven) != value) {
pr_debug("%s: gpio_set_ven %d\n", __func__, value);
/*reset on change in level from high to low */
if (value) {
common_ese_on_hard_reset(nfc_dev);
}
gpio_set_value(nfc_dev->gpio.ven, value);
gpio_set_value(nfc_gpio->ven, value);
// hardware dependent delay
usleep_range(10000, 10100);
usleep_range(NFC_GPIO_SET_WAIT_TIME_USEC,
NFC_GPIO_SET_WAIT_TIME_USEC + 100);
}
}
@@ -140,14 +148,15 @@ int configure_gpio(unsigned int gpio, int flag)
void gpio_free_all(nfc_dev_t *nfc_dev)
{
if (gpio_is_valid(nfc_dev->gpio.dwl_req)) {
gpio_free(nfc_dev->gpio.dwl_req);
platform_gpio_t *nfc_gpio = &nfc_dev->configs.gpio;
if (gpio_is_valid(nfc_gpio->dwl_req)) {
gpio_free(nfc_gpio->dwl_req);
}
if (gpio_is_valid(nfc_dev->gpio.irq)) {
gpio_free(nfc_dev->gpio.irq);
if (gpio_is_valid(nfc_gpio->irq)) {
gpio_free(nfc_gpio->irq);
}
if (gpio_is_valid(nfc_dev->gpio.ven)) {
gpio_free(nfc_dev->gpio.ven);
if (gpio_is_valid(nfc_gpio->ven)) {
gpio_free(nfc_gpio->ven);
}
}
@@ -211,6 +220,7 @@ int nfc_misc_register(nfc_dev_t *nfc_dev,
static int nfc_ioctl_power_states(nfc_dev_t *nfc_dev, unsigned long arg)
{
int ret = 0;
platform_gpio_t *nfc_gpio = &nfc_dev->configs.gpio;
if (arg == NFC_POWER_OFF) {
/*
* We are attempting a hardware reset so let us disable
@@ -218,12 +228,12 @@ static int nfc_ioctl_power_states(nfc_dev_t *nfc_dev, unsigned long arg)
* layers.
*/
nfc_dev->nfc_disable_intr(nfc_dev);
set_valid_gpio(nfc_dev->gpio.dwl_req, 0);
set_valid_gpio(nfc_gpio->dwl_req, 0);
gpio_set_ven(nfc_dev, 0);
nfc_dev->nfc_ven_enabled = false;
} else if (arg == NFC_POWER_ON) {
nfc_dev->nfc_enable_intr(nfc_dev);
set_valid_gpio(nfc_dev->gpio.dwl_req, 0);
set_valid_gpio(nfc_gpio->dwl_req, 0);
gpio_set_ven(nfc_dev, 1);
nfc_dev->nfc_ven_enabled = true;
@@ -233,10 +243,8 @@ static int nfc_ioctl_power_states(nfc_dev_t *nfc_dev, unsigned long arg)
* in order to set the NFCC in the new mode
*/
nfc_dev->nfc_disable_intr(nfc_dev);
set_valid_gpio(nfc_dev->gpio.dwl_req, 1);
if (nfc_dev->interface == PLATFORM_IF_I2C) {
nfc_dev->nfc_state = NFC_STATE_FW_DWL;
}
set_valid_gpio(nfc_gpio->dwl_req, 1);
nfc_dev->nfc_state = NFC_STATE_FW_DWL;
gpio_set_ven(nfc_dev, 0);
gpio_set_ven(nfc_dev, 1);
nfc_dev->nfc_enable_intr(nfc_dev);
@@ -245,10 +253,8 @@ static int nfc_ioctl_power_states(nfc_dev_t *nfc_dev, unsigned long arg)
* Setting firmware download gpio to HIGH
* before FW download start
*/
set_valid_gpio(nfc_dev->gpio.dwl_req, 1);
if (nfc_dev->interface == PLATFORM_IF_I2C) {
nfc_dev->nfc_state = NFC_STATE_FW_DWL;
}
set_valid_gpio(nfc_gpio->dwl_req, 1);
nfc_dev->nfc_state = NFC_STATE_FW_DWL;
} else if (arg == NFC_VEN_FORCED_HARD_RESET) {
nfc_dev->nfc_disable_intr(nfc_dev);
@@ -260,10 +266,8 @@ static int nfc_ioctl_power_states(nfc_dev_t *nfc_dev, unsigned long arg)
* Setting firmware download gpio to LOW
* FW download finished
*/
set_valid_gpio(nfc_dev->gpio.dwl_req, 0);
if (nfc_dev->interface == PLATFORM_IF_I2C) {
nfc_dev->nfc_state = NFC_STATE_NCI;
}
set_valid_gpio(nfc_gpio->dwl_req, 0);
nfc_dev->nfc_state = NFC_STATE_NCI;
} else {
pr_err("%s bad arg %lu\n", __func__, arg);
ret = -ENOIOCTLCMD;
@@ -305,8 +309,7 @@ long nfc_dev_ioctl(struct file *pfile, unsigned int cmd, unsigned long arg)
pr_debug("nfc get state %d\n", ret);
break;
case NFC_GET_IRQ_STATE:
ret = 0;
ret = gpio_get_value(nfc_dev->gpio.irq);
ret = gpio_get_value(nfc_dev->configs.gpio.irq);
break;
default:
pr_err("%s bad cmd %lu\n", __func__, arg);
@@ -325,7 +328,7 @@ int nfc_dev_open(struct inode *inode, struct file *filp)
filp->private_data = nfc_dev;
if (nfc_dev->dev_ref_count == 0) {
set_valid_gpio(nfc_dev->gpio.dwl_req, 0);
set_valid_gpio(nfc_dev->configs.gpio.dwl_req, 0);
nfc_dev->nfc_enable_intr(nfc_dev);
}
@@ -341,7 +344,7 @@ int nfc_dev_close(struct inode *inode, struct file *filp)
mutex_lock(&nfc_dev->dev_ref_mutex);
if (nfc_dev->dev_ref_count == 1) {
nfc_dev->nfc_disable_intr(nfc_dev);
set_valid_gpio(nfc_dev->gpio.dwl_req, 0);
set_valid_gpio(nfc_dev->configs.gpio.dwl_req, 0);
}
if (nfc_dev->dev_ref_count > 0)
nfc_dev->dev_ref_count = nfc_dev->dev_ref_count - 1;
@@ -363,14 +366,6 @@ static int get_nfcc_boot_state(struct nfc_dev *nfc_dev)
char get_version_cmd[] = { 0x00, 0x04, 0xF1, 0x00, 0x00, 0x00, 0x6E, 0xEF };
char get_session_state_cmd[] = { 0x00, 0x04, 0xF2, 0x00, 0x00, 0x00, 0xF5, 0x33 };
char rsp_buf[MAX_BUFFER_SIZE];
/*clearing any data in the kbuf store */
do {
ret = nfc_dev->nfc_read(nfc_dev, rsp_buf, MAX_BUFFER_SIZE);
if (ret < 0) {
pr_err("%s: - nfc read ret %d\n", __func__, ret);
}
pr_info("%s: - nfc read ret %d\n", __func__, ret);
} while (ret > 0);
pr_debug("%s:Sending GET_VERSION cmd\n", __func__);
ret = nfc_dev->nfc_write(nfc_dev, get_version_cmd,
@@ -381,18 +376,23 @@ static int get_nfcc_boot_state(struct nfc_dev *nfc_dev)
}
memset(rsp_buf, 0x00, MAX_BUFFER_SIZE);
pr_debug("%s:Reading response of GET_VERSION cmd\n", __func__);
ret = nfc_dev->nfc_read(nfc_dev, rsp_buf, MAX_BUFFER_SIZE);
ret = nfc_dev->nfc_read(nfc_dev, rsp_buf, DL_GET_VERSION_RSP_LEN_2, NCI_CMD_RSP_TIMEOUT);
if (ret <= 0) {
pr_err("%s: - nfc get version rsp error ret %d\n", __func__, ret);
goto err;
} else if (rsp_buf[0] == 0x0
&& ret == (FW_HDR_LEN + rsp_buf[FW_PAYLOAD_LEN_IDX] + FW_CRC_LEN)
&& (ret == DL_GET_VERSION_RSP_LEN_1 || ret == DL_GET_VERSION_RSP_LEN_2)) {
} else if (rsp_buf[0] == FW_MSG_CMD_RSP
&& ret >= DL_GET_VERSION_RSP_LEN_2) {
#if defined(RECOVERY_ENABLE)
nfc_dev->fw_major_version = rsp_buf[FW_MAJOR_VER_OFFSET];
/* recvoery neeeded only for SN1xx */
if(rsp_buf[FW_ROM_CODE_VER_OFFSET] == RECOVERY_FW_SUPPORTED_ROM_VER &&
nfc_dev->fw_major_version == RECOVERY_FW_SUPPORTED_MAJOR_VER)
nfc_dev->recovery_required = true;
#endif
pr_info("%s:NFC chip_type 0x%02x rom_version 0x%02x fw_minor 0x%02x fw_major 0x%02x\n",
__func__, rsp_buf[3], rsp_buf[4], rsp_buf[6], rsp_buf[7]);
} else if (rsp_buf[0] != 0x0
&& ret == (NCI_HDR_LEN + rsp_buf[NCI_PAYLOAD_LEN_IDX])) {
} else if (rsp_buf[0] != FW_MSG_CMD_RSP
&& ret >= (NCI_HDR_LEN + rsp_buf[NCI_PAYLOAD_LEN_IDX])) {
pr_info("%s:NFC response bytes 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n", __func__,
rsp_buf[0], rsp_buf[1], rsp_buf[2], rsp_buf[3], rsp_buf[3]);
pr_debug("%s NFCC booted in NCI mode %d\n", __func__, __LINE__);
@@ -409,7 +409,7 @@ static int get_nfcc_boot_state(struct nfc_dev *nfc_dev)
}
memset(rsp_buf, 0x00, DL_GET_SESSION_STATE_RSP_LEN);
pr_debug("%s:Reading response of GET_SESSION_STATE cmd\n", __func__);
ret = nfc_dev->nfc_read(nfc_dev, rsp_buf, DL_GET_SESSION_STATE_RSP_LEN);
ret = nfc_dev->nfc_read(nfc_dev, rsp_buf, DL_GET_SESSION_STATE_RSP_LEN, NCI_CMD_RSP_TIMEOUT);
if (ret <= 0) {
pr_err("%s: - nfc get session state rsp err %d\n", __func__, ret);
goto err;
@@ -431,11 +431,12 @@ err:
int validate_nfc_state_nci(nfc_dev_t *nfc_dev)
{
if (!gpio_get_value(nfc_dev->gpio.ven)) {
platform_gpio_t *nfc_gpio = &nfc_dev->configs.gpio;
if (!gpio_get_value(nfc_gpio->ven)) {
pr_err("VEN LOW - NFCC powered off\n");
return -ENODEV;
} else {
if (get_valid_gpio(nfc_dev->gpio.dwl_req) == 1) {
if (get_valid_gpio(nfc_gpio->dwl_req) == 1) {
pr_err("FW download in-progress\n");
return -EBUSY;
} else if (nfc_dev->nfc_state == NFC_STATE_FW_DWL) {
@@ -445,3 +446,162 @@ int validate_nfc_state_nci(nfc_dev_t *nfc_dev)
}
return 0;
}
static int set_nfcc_nci_state(struct nfc_dev *nfc_dev)
{
int ret = 0;
char dl_reset_cmd[] = { 0x00, 0x04, 0xF0, 0x00, 0x00, 0x00, 0x18, 0x5B };
pr_debug("%s:Sending DL_RESET to boot in NCI mode\n", __func__);
ret = nfc_dev->nfc_write(nfc_dev, dl_reset_cmd,
sizeof(dl_reset_cmd), MAX_RETRY_COUNT);
if (ret <= 0) {
pr_err("%s: nfc dl reset cmd err ret %d\n", __func__, ret);
goto err;
}
usleep_range(NFC_SOFT_RESET_WAIT_TIME_USEC,
NFC_SOFT_RESET_WAIT_TIME_USEC + 100);
pr_debug("%s NFCC booted in NCI mode %d\n", __func__, __LINE__);
return 0;
err:
pr_err("%s Unlikely NFCC not booted in NCI mode %d\n", __func__, __LINE__);
return -1;
}
static bool do_nci_reset(nfc_dev_t *nfc_dev) {
const uint8_t cmd_reset_nci[] = {0x20, 0x00, 0x01, 0x00};
char rsp_buf[MAX_BUFFER_SIZE];
int status = 0;
if (NULL == nfc_dev) {
pr_err("%s invalid params ", __func__);
return false;
}
pr_debug("%s Entry \n", __func__);
gpio_set_ven(nfc_dev, 0);
gpio_set_ven(nfc_dev, 1);
pr_debug(" %s send core reset cmd \n", __func__);
status = nfc_dev->nfc_write(nfc_dev, cmd_reset_nci,
sizeof(cmd_reset_nci), NO_RETRY);
if (status <= 0) {
pr_err(" %s: nfc nci core reset cmd err status %d\n", __func__, status);
return false;
}
usleep_range(NCI_RESET_RESP_READ_DELAY, NCI_RESET_RESP_READ_DELAY + 100);
nfc_dev->nfc_enable_intr(nfc_dev);
pr_debug(" %s Reading response of NCI reset \n", __func__);
memset(rsp_buf, 0x00, MAX_BUFFER_SIZE);
status = nfc_dev->nfc_read(nfc_dev, rsp_buf, MAX_BUFFER_SIZE, NCI_RESET_RESP_TIMEOUT);
if (status <= 0) {
pr_err(" %s - nfc nci rest rsp error status %d\n", __func__, status);
nfc_dev->nfc_disable_intr(nfc_dev);
return false;
}
pr_debug(" %s: nci core reset response 0x%02x 0x%02x 0x%02x 0x%02x \n",
__func__, rsp_buf[0], rsp_buf[1],rsp_buf[2], rsp_buf[3]);
if(rsp_buf[0] != NCI_MSG_RSP) {
/* reset response failed response*/
pr_err("%s invalid nci core reset response");
nfc_dev->nfc_disable_intr(nfc_dev);
return false;
}
memset(rsp_buf, 0x00, MAX_BUFFER_SIZE);
/* read nci rest response ntf */
status = nfc_dev->nfc_read(nfc_dev, rsp_buf, MAX_BUFFER_SIZE, NCI_CMD_RSP_TIMEOUT);
if (status <= 0) {
pr_err("%s - nfc nci rest rsp ntf error status %d\n"
, __func__, status);
}
pr_debug(" %s:NFC NCI Reset Response ntf 0x%02x 0x%02x 0x%02x 0x%02x \n",
__func__, rsp_buf[0], rsp_buf[1],rsp_buf[2], rsp_buf[3]);
nfc_dev->nfc_disable_intr(nfc_dev);
gpio_set_ven(nfc_dev, 0);
gpio_set_ven(nfc_dev, 1);
return true;
}
/* Check for availability of NFC controller hardware */
int nfcc_hw_check(struct nfc_dev *nfc_dev)
{
int ret = 0;
uint8_t nfc_state = NFC_STATE_UNKNOWN;
if(do_nci_reset(nfc_dev)) {
pr_info("%s recovery not required", __func__);
return ret;
}
nfc_dev->nfc_enable_intr(nfc_dev);
/*set download mode for i2c products with dwl pin */
enable_dwnld_mode(nfc_dev, true);
nfc_state = get_nfcc_boot_state(nfc_dev);
switch (nfc_state) {
case NFC_STATE_FW_DWL:
usleep_range(NFC_GPIO_SET_WAIT_TIME_USEC,
NFC_GPIO_SET_WAIT_TIME_USEC + 100);
if (set_nfcc_nci_state(nfc_dev)) {
pr_debug("%s: - NFCC DL Reset Fails\n", __func__);
} else {
nfc_state = NFC_STATE_NCI;
/*set NCI mode for i2c products with dwl pin */
enable_dwnld_mode(nfc_dev, false);
}
/* fall-through */
case NFC_STATE_NCI:
nfc_dev->nfc_ven_enabled = true;
pr_debug("%s: - NFCC HW detected\n", __func__);
break;
case NFC_STATE_FW_TEARED:
pr_warn("%s: - NFCC FW Teared State\n", __func__);
#if defined(RECOVERY_ENABLE)
if(nfc_dev->recovery_required &&
(do_recovery(nfc_dev) == STATUS_SUCCESS)) {
pr_debug("%s: - NFCC HW detected\n", __func__);
}
#endif
nfc_dev->nfc_ven_enabled = true;
break;
case NFC_STATE_UNKNOWN:
default:
ret = -ENXIO;
pr_debug("%s: - NFCC HW not available\n", __func__);
};
nfc_dev->nfc_disable_intr(nfc_dev);
if (nfc_state == NFC_STATE_FW_TEARED) {
nfc_state = NFC_STATE_FW_DWL;
}
nfc_dev->nfc_state = nfc_state;
return ret;
}
void enable_dwnld_mode(nfc_dev_t* nfc_dev, bool value) {
if(nfc_dev != NULL) {
platform_gpio_t *nfc_gpio = &nfc_dev->configs.gpio;
if (get_valid_gpio(nfc_gpio->dwl_req) != -1) {
set_valid_gpio(nfc_gpio->dwl_req, value);
gpio_set_ven(nfc_dev, 0);
gpio_set_ven(nfc_dev, 1);
}
}
}
void set_nfcc_state_from_rsp(struct nfc_dev *dev, const char *buf,
const int count)
{
int packet_size = 0;
if (buf[0] == FW_MSG_CMD_RSP && buf[1] >= FW_MIN_PAYLOAD_LEN) {
packet_size = FW_HDR_LEN + buf[FW_PAYLOAD_LEN_IDX] + FW_CRC_LEN;
if (packet_size == count && dev->nfc_state == NFC_STATE_NCI)
dev->nfc_state = NFC_STATE_FW_DWL;
} else {
packet_size = NCI_HDR_LEN + buf[NCI_PAYLOAD_LEN_IDX];
if (packet_size == count && dev->nfc_state == NFC_STATE_FW_DWL)
dev->nfc_state = NFC_STATE_NCI;
}
if (count != packet_size) {
pr_err("%s: Unlikely mismatch in packet size received (%d/%d)/\n", __func__,
packet_size, count);
}
}