174 lines
3.7 KiB
C
174 lines
3.7 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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#ifdef CONFIG_SEC_NFC_SENN3AB
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#include <linux/pinctrl/consumer.h>
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#define SEC_NFC_DRIVER_NAME "sec-nfc"
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#define SEC_NFC_FN_DRIVER_NAME "sec-nfc-fn"
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#define SEC_NFC_PROCESS_NAME "com.android.nfc"
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#define SEC_NFC_MAX_BUFFER_SIZE 512
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#define SEC_NFC_PROCESS_NAME_SIZE 128
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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_GET_PUSH _IOW(SEC_NFC_MAGIC, 2, unsigned int)
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#define SEC_NFC_SET_UART_STATE _IOW(SEC_NFC_MAGIC, 3, unsigned int)
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#define SEC_NFC_EDC_SWEEP _IOW(SEC_NFC_MAGIC, 4, unsigned int)
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// Security
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#define SEC_NFC_FUSE_ID 0x00
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#define SEC_NFC_SVC_FUSE 0x08
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#define SEC_NFC_IS_SW_FUSE_BLOWN_ID 0x02
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static uid_t g_secnfc_uid = 1027;
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uint8_t check_custom_kernel(void);
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// End of Security
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/* size */
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#define SEC_NFC_MSG_MIN_SIZE 1
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#define SEC_NFC_MSG_MAX_SIZE (256 + 4)
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/* wait for device stable */
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#define SEC_NFC_VEN_WAIT_TIME (100)
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/* gpio pin configuration */
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struct sec_nfc_platform_data {
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// unsigned int irq;
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unsigned int ven;
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unsigned int firm;
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unsigned int tvdd;
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void (*cfg_gpio)(void);
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u32 pon_gpio_flags;
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u32 rfs_gpio_flags;
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u32 tvdd_gpio_flags;
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struct pinctrl *nfc_pinctrl;
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struct pinctrl_state *nfc_suspend;
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struct pinctrl_state *nfc_active;
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#ifdef CONFIG_SEC_NFC_LDO_JPN_CONTROL
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const char *i2c_1p8;
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const char *ldo_tvdd;
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#endif
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};
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#define STATE_FIRM_HIGH 1
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#define STATE_FIRM_LOW 0
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enum sec_nfc_state {
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SEC_NFC_ST_OFF = 0,
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SEC_NFC_ST_NORM,
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SEC_NFC_ST_FIRM,
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SEC_NFC_ST_COUNT,
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};
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enum sec_nfc_uart_state {
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SEC_NFC_ST_UART_OFF = 0,
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SEC_NFC_ST_UART_ON,
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};
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#ifdef CONFIG_SEC_NFC_SENN3AB_FN
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struct sec_nfc_fn_platform_data {
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unsigned int push;
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void (*cfg_gpio)(void);
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u32 int_gpio_flags;
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};
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enum readable_state {
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RDABLE_NULL = 0,
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RDABLE_NO,
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RDABLE_PENDING,
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RDABLE_YES,
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};
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#endif
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#else /* CONFIG_SEC_NFC_SENN3AB */
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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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/* 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 (100)
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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 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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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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const char *nfc_pvdd;
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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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};
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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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{
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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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#endif /* CONFIG_SEC_NFC_SENN3AB */
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extern int poweroff_charging;
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extern unsigned int lpcharge;
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#define NFC_I2C_LDO_ON 1
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#define NFC_I2C_LDO_OFF 0
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