// SPDX-License-Identifier: GPL-2.0-or-later /*************************************************************************** * Copyright (C) 2010-2012 Hans de Goede <[email protected]> * * * ***************************************************************************/ #define pr_fmt(fmt) … #include <linux/module.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/err.h> #include <linux/io.h> #include <linux/acpi.h> #include <linux/delay.h> #include <linux/fs.h> #include <linux/watchdog.h> #include <linux/uaccess.h> #include <linux/slab.h> #include "sch56xx-common.h" /* Insmod parameters */ static bool nowayout = … WATCHDOG_NOWAYOUT; module_param(nowayout, bool, 0); MODULE_PARM_DESC(…) …; #define SIO_SCH56XX_LD_EM … #define SIO_UNLOCK_KEY … #define SIO_LOCK_KEY … #define SIO_REG_LDSEL … #define SIO_REG_DEVID … #define SIO_REG_ENABLE … #define SIO_REG_ADDR … #define SIO_SCH5627_ID … #define SIO_SCH5636_ID … #define REGION_LENGTH … #define SCH56XX_CMD_READ … #define SCH56XX_CMD_WRITE … /* Watchdog registers */ #define SCH56XX_REG_WDOG_PRESET … #define SCH56XX_REG_WDOG_CONTROL … #define SCH56XX_WDOG_TIME_BASE_SEC … #define SCH56XX_REG_WDOG_OUTPUT_ENABLE … #define SCH56XX_WDOG_OUTPUT_ENABLE … struct sch56xx_watchdog_data { … }; struct sch56xx_bus_context { … }; static struct platform_device *sch56xx_pdev; /* Super I/O functions */ static inline int superio_inb(int base, int reg) { … } static inline int superio_enter(int base) { … } static inline void superio_select(int base, int ld) { … } static inline void superio_exit(int base) { … } static int sch56xx_send_cmd(u16 addr, u8 cmd, u16 reg, u8 v) { … } int sch56xx_read_virtual_reg(u16 addr, u16 reg) { … } EXPORT_SYMBOL(…); int sch56xx_write_virtual_reg(u16 addr, u16 reg, u8 val) { … } EXPORT_SYMBOL(…); int sch56xx_read_virtual_reg16(u16 addr, u16 reg) { … } EXPORT_SYMBOL(…); int sch56xx_read_virtual_reg12(u16 addr, u16 msb_reg, u16 lsn_reg, int high_nibble) { … } EXPORT_SYMBOL(…); /* * Regmap support */ int sch56xx_regmap_read16(struct regmap *map, unsigned int reg, unsigned int *val) { … } EXPORT_SYMBOL(…); int sch56xx_regmap_write16(struct regmap *map, unsigned int reg, unsigned int val) { … } EXPORT_SYMBOL(…); static int sch56xx_reg_write(void *context, unsigned int reg, unsigned int val) { … } static int sch56xx_reg_read(void *context, unsigned int reg, unsigned int *val) { … } static void sch56xx_free_context(void *context) { … } static const struct regmap_bus sch56xx_bus = …; struct regmap *devm_regmap_init_sch56xx(struct device *dev, struct mutex *lock, u16 addr, const struct regmap_config *config) { … } EXPORT_SYMBOL(…); /* * Watchdog routines */ static int watchdog_set_timeout(struct watchdog_device *wddev, unsigned int timeout) { … } static int watchdog_start(struct watchdog_device *wddev) { … } static int watchdog_trigger(struct watchdog_device *wddev) { … } static int watchdog_stop(struct watchdog_device *wddev) { … } static const struct watchdog_ops watchdog_ops = …; void sch56xx_watchdog_register(struct device *parent, u16 addr, u32 revision, struct mutex *io_lock, int check_enabled) { … } EXPORT_SYMBOL(…); /* * platform dev find, add and remove functions */ static int __init sch56xx_find(int sioaddr, const char **name) { … } static int __init sch56xx_device_add(int address, const char *name) { … } static int __init sch56xx_init(void) { … } static void __exit sch56xx_exit(void) { … } MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; module_init(…) …; module_exit(sch56xx_exit);
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