dlkm: sec_nfc: add samsung nfc driver

Rhode 5G + will use samsung rn4v NFC controller.
Add sec driver for it

Change-Id: I5c88e07953fec45b458d47b803a3afd119ee9f10
Signed-off-by: wuwl10 <wuwl10@motorola.com>
Reviewed-on: https://gerrit.mot.com/2131748
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Ningkai Zhuang <zhuangnk1@lenovo.com>
Reviewed-by: Xu Du <duxu1@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key

drivers/nfc/sec_nfc/Android.mk

@@ -0,0 +1,19 @@
+DLKM_DIR := motorola/kernel/modules
+LOCAL_PATH := $(call my-dir)
+
+
+ifeq ($(SEC_NFC_PRODUCT_N3), true)
+	KERNEL_CFLAGS += CONFIG_SEC_NFC_PRODUCT_N3=y
+else
+	KERNEL_CFLAGS += CONFIG_SEC_NFC_PRODUCT_N5=y
+endif
+KERNEL_CFLAGS += CONFIG_SEC_NFC_PRODUCT_N5=y
+KERNEL_CFLAGS += CONFIG_SEC_NFC_IF_I2C=y
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := sec_nfc.ko
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_PATH := $(KERNEL_MODULES_OUT)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(KERNEL_MODULES_OUT)/mmi_info.ko
+include $(DLKM_DIR)/AndroidKernelModule.mk
+

drivers/nfc/sec_nfc/Kbuild

@@ -0,0 +1,14 @@
+# add -Wall to try to catch everything we can.
+EXTRA_CFLAGS += -Wall
+EXTRA_CFLAGS += -I$(ANDROID_BUILD_TOP)/motorola/kernel/modules/include
+
+ifneq ($(filter m y,$(CONFIG_SEC_NFC_PRODUCT_N5)),)
+	EXTRA_CFLAGS += -DCONFIG_SEC_NFC_PRODUCT_N5
+endif
+ifneq ($(filter m y,$(CONFIG_SEC_NFC_IF_I2C)),)
+	EXTRA_CFLAGS += -DCONFIG_SEC_NFC_IF_I2C
+endif
+
+obj-m        += sec_nfc.o
+
+KBUILD_EXTRA_SYMBOLS += $(CURDIR)/$(KBUILD_EXTMOD)/../../mmi_info/Module.symvers

drivers/nfc/sec_nfc/Makefile

@@ -0,0 +1,17 @@
+all: modules
+
+modules:
+	$(MAKE) -C $(KERNEL_SRC) M=$(M) modules $(KBUILD_OPTIONS)
+
+modules_install:
+	$(MAKE) INSTALL_MOD_STRIP=1 -C $(KERNEL_SRC) M=$(M) modules_install
+
+%:
+	$(MAKE) -C $(KERNEL_SRC) M=$(M) $@ $(KBUILD_OPTIONS)
+
+clean:
+	rm -f *.o *.ko *.mod.c *.mod.o *~ .*.cmd Module.symvers
+	rm -rf .tmp_versions
+
+KBUILD_EXTRA_SYMBOLS := $(M)/../../mmi_info/Module.symvers
+

drivers/nfc/sec_nfc/sec_nfc.h

@@ -0,0 +1,142 @@
+/*
+ * SAMSUNG NFC Controller
+ *
+ * Copyright (C) 2013 Samsung Electronics Co.Ltd
+ * Author: Woonki Lee <woonki84.lee@samsung.com>
+ * Author: Heejae Kim <heejae12.kim@samsung.com>
+ *
+ * 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.
+ *
+ * Last update: 2016-01-14
+ */
+
+#include <linux/platform_device.h>
+#ifdef CONFIG_SEC_NFC_GPIO_CLK
+#include <linux/clk.h>
+#endif
+#ifdef CONFIG_SEC_NFC_PMIC_LDO
+#include <linux/regulator/consumer.h>
+#include <linux/err.h>
+#endif
+
+#ifdef CONFIG_SEC_NFC_I2C /* support old driver configuration */
+
+#ifndef CONFIG_SEC_NFC
+#define CONFIG_SEC_NFC
+#endif
+
+#if !defined(CONFIG_SEC_NFC_IF_I2C) && !defined(CONFIG_SEC_NFC_IF_UART)
+#define CONFIG_SEC_NFC_IF_I2C
+#endif
+
+#if !defined(CONFIG_SEC_NFC_PRODUCT_N3) && !defined(CONFIG_SEC_NFC_PRODUCT_N5)
+#define CONFIG_SEC_NFC_PRODUCT_N5
+#endif
+
+#endif /* CONFIG_SEC_NFC_I2C */
+
+#define SEC_NFC_DRIVER_NAME     "sec-nfc"
+
+#define SEC_NFC_MAX_BUFFER_SIZE 512
+
+/* ioctl */
+#define SEC_NFC_MAGIC           'S'
+#define SEC_NFC_GET_MODE        _IOW(SEC_NFC_MAGIC, 0, unsigned int)
+#define SEC_NFC_SET_MODE        _IOW(SEC_NFC_MAGIC, 1, unsigned int)
+#define SEC_NFC_SLEEP           _IOW(SEC_NFC_MAGIC, 2, unsigned int)
+#define SEC_NFC_WAKEUP          _IOW(SEC_NFC_MAGIC, 3, unsigned int)
+#ifdef CONFIG_SEC_ESE_COLDRESET
+#define SEC_NFC_COLD_RESET      _IOW(SEC_NFC_MAGIC, 5, unsigned int)
+#define SEC_NFC_SHUTDOWN        _IOW(SEC_NFC_MAGIC, 6, unsigned int)
+#endif
+
+/* size */
+#define SEC_NFC_MSG_MAX_SIZE    (256 + 4)
+
+/* wait for device stable */
+#ifdef CONFIG_SEC_NFC_MARGINTIME
+#define SEC_NFC_VEN_WAIT_TIME   (150)
+#else
+#define SEC_NFC_VEN_WAIT_TIME   (20)
+#endif
+
+/* gpio pin configuration */
+struct sec_nfc_platform_data {
+	int irq;
+	int ven;
+	int firm;
+	int wake;
+	int pvdd_en;
+	unsigned int tvdd;
+	unsigned int avdd;
+#ifdef CONFIG_SEC_ESE_COLDRESET
+	unsigned int coldreset;
+#endif
+#ifdef CONFIG_SEC_NFC_GPIO_CLK
+	unsigned int clk_req;
+	struct clk *clk;
+#endif
+
+	void (*cfg_gpio)(void);
+	u32 ven_gpio_flags;
+	u32 firm_gpio_flags;
+	u32 irq_gpio_flags;
+	const char *nfc_pvdd;
+#ifdef CONFIG_SEC_NFC_PMIC_LDO
+	const char *pvdd_regulator_name;
+	struct regulator *pvdd_regulator;
+#endif
+#ifdef CONFIG_SEC_NFC_DEDICATED_CLK
+	phys_addr_t clkctrl_addr;
+#endif
+};
+
+enum sec_nfc_mode {
+	SEC_NFC_MODE_OFF = 0,
+	SEC_NFC_MODE_FIRMWARE,
+	SEC_NFC_MODE_BOOTLOADER,
+	SEC_NFC_MODE_COUNT,
+};
+
+#ifdef CONFIG_SEC_NFC_PRODUCT_N3
+enum sec_nfc_power {
+	SEC_NFC_PW_OFF = 0,
+	SEC_NFC_PW_ON,
+};
+#else /* CONFIG_SEC_NFC_PRODUCT_N3 */
+enum sec_nfc_power {
+	SEC_NFC_PW_ON = 0,
+	SEC_NFC_PW_OFF,
+};
+#endif
+
+enum sec_nfc_firmpin {
+	SEC_NFC_FW_OFF = 0,
+	SEC_NFC_FW_ON,
+};
+
+enum sec_nfc_wake {
+	SEC_NFC_WAKE_SLEEP = 0,
+	SEC_NFC_WAKE_UP,
+};
+
+#ifdef CONFIG_SEC_ESE_COLDRESET
+enum sec_nfc_coldreset{
+	SEC_NFC_COLDRESET_OFF = 0,
+	SEC_NFC_COLDRESET_ON,
+};
+
+#define FIRMWARE_GUARD_TIME (4)
+#define DEVICEHOST_ID (0x00)
+#define ESE_ID (0x02)
+#define IDX_SLEEP_WAKEUP_NFC 0
+#define IDX_SLEEP_WAKEUP_ESE 1
+#endif
+
+bool is_charging_mode;
+
+#define NFC_I2C_LDO_ON      1
+#define NFC_I2C_LDO_OFF     0