148 lines
3.4 KiB
C
148 lines
3.4 KiB
C
/*
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* SAMSUNG NFC N2 Controller
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*
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* Copyright (C) 2013 Samsung Electronics Co.Ltd
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* Author: Woonki Lee <woonki84.lee@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/platform_device.h>
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#include <linux/clk.h>
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#define SEC_NFC_DRIVER_NAME "sec-nfc"
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#define SEC_NFC_MAX_BUFFER_SIZE 512
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/* ioctl */
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#define SEC_NFC_MAGIC 'S'
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#define SEC_NFC_GET_MODE _IOW(SEC_NFC_MAGIC, 0, unsigned int)
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#define SEC_NFC_SET_MODE _IOW(SEC_NFC_MAGIC, 1, unsigned int)
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#define SEC_NFC_SLEEP _IOW(SEC_NFC_MAGIC, 2, unsigned int)
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#define SEC_NFC_WAKEUP _IOW(SEC_NFC_MAGIC, 3, unsigned int)
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#define SEC_NFC_SET_NPT_MODE _IOW(SEC_NFC_MAGIC, 4, unsigned int)
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#ifdef CONFIG_ESE_COLDRESET
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#define SEC_NFC_COLD_RESET _IOW(SEC_NFC_MAGIC, 5, unsigned int)
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#endif
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#define SEC_NFC_DEBUG _IO(SEC_NFC_MAGIC, 99)
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#ifndef CONFIG_SEC_NFC_LOGGER
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#define NFC_LOG_ERR(fmt, ...) pr_err("sec_nfc: "fmt, ##__VA_ARGS__)
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#define NFC_LOG_INFO(fmt, ...) pr_info("sec_nfc: "fmt, ##__VA_ARGS__)
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#define NFC_LOG_INFO_WITH_DATE(fmt, ...) pr_info("sec_nfc: "fmt, ##__VA_ARGS__)
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#define NFC_LOG_DBG(fmt, ...) pr_debug("sec_nfc: "fmt, ##__VA_ARGS__)
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#define NFC_LOG_REC(fmt, ...) do { } while (0)
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#define nfc_print_hex_dump(a, b, c) do { } while (0)
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#define nfc_logger_init() do { } while (0)
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#define nfc_logger_set_max_count(a) do { } while (0)
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#define nfc_logger_register_nfc_stauts_func(a) do { } while (0)
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#endif
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/* size */
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#define SEC_NFC_MSG_MAX_SIZE (256 + 4)
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/* wait for device stable */
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#ifdef CONFIG_SEC_NFC_MARGINTIME
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#define SEC_NFC_VEN_WAIT_TIME (150)
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#else
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#define SEC_NFC_VEN_WAIT_TIME (20)
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#endif
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/* gpio pin configuration */
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struct sec_nfc_platform_data {
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int irq;
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int clk_irq;
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int ven;
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int firm;
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int wake;
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int pvdd;
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unsigned int tvdd;
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unsigned int avdd;
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bool clk_req_wake;
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bool irq_all_trigger;
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#ifdef CONFIG_ESE_COLDRESET
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unsigned int coldreset;
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#endif
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unsigned int clk_req;
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struct clk *clk;
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void (*cfg_gpio)(void);
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u32 ven_gpio_flags;
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u32 firm_gpio_flags;
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u32 irq_gpio_flags;
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/*[START] NPT*/
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unsigned int npt;
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u32 npt_gpio_flags;
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/*[END] NPT*/
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struct regulator *nfc_pvdd;
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int bootloader_ver; /* used for nfc test */
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int i2c_switch; /*i2c swicth on_off gpio*/
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};
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enum sec_nfc_mode {
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SEC_NFC_MODE_OFF = 0,
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SEC_NFC_MODE_FIRMWARE,
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SEC_NFC_MODE_BOOTLOADER,
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SEC_NFC_MODE_COUNT,
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SEC_NFC_MODE_TURNING_ON_OFF,
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};
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enum sec_nfc_power {
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SEC_NFC_PW_ON = 0,
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SEC_NFC_PW_OFF,
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};
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enum sec_nfc_firmpin {
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SEC_NFC_FW_OFF = 0,
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SEC_NFC_FW_ON,
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};
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enum sec_nfc_wake {
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SEC_NFC_WAKE_SLEEP = 0,
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SEC_NFC_WAKE_UP,
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};
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/*[START] NPT*/
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enum sec_nfc_npt_mode {
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SEC_NFC_NPT_OFF = 0,
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SEC_NFC_NPT_ON,
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SEC_NFC_NPT_CMD_ON = 0x7E,
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SEC_NFC_NPT_CMD_OFF,
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};
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/*[END] NPT*/
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#ifdef CONFIG_ESE_COLDRESET
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/*[START] COLDRESET*/
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enum sec_nfc_coldreset{
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SEC_NFC_COLDRESET_OFF = 0,
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SEC_NFC_COLDRESET_ON,
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};
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#define FIRMWARE_GUARD_TIME (4)
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#define DEVICEHOST_ID (0x00)
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#define ESE_ID (0x02)
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#define IDX_SLEEP_WAKEUP_NFC 0
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#define IDX_SLEEP_WAKEUP_ESE 1
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/*[END] COLDRESET*/
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#endif
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#if IS_ENABLED(CONFIG_BATTERY_SAMSUNG) && !defined(CONFIG_NFC_PVDD_LATE_ENABLE)
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extern unsigned int lpcharge;
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#endif
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#define NFC_I2C_LDO_ON 1
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#define NFC_I2C_LDO_OFF 0
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enum lpm_status {
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LPM_NO_SUPPORT = -1,
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LPM_FALSE,
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LPM_TRUE
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};
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