// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2015-2017 Pengutronix, Uwe Kleine-König <kernel@pengutronix.de> */ #include <linux/kernel.h> #include <linux/kthread.h> #include <linux/siox.h> #define to_siox_master(_dev) container_of((_dev), struct siox_master, dev) struct siox_master { /* these fields should be initialized by the driver */ int busno; int (*pushpull)(struct siox_master *smaster, size_t setbuf_len, const u8 setbuf[], size_t getbuf_len, u8 getbuf[]); /* might be initialized by the driver, if 0 it is set to HZ / 40 */ unsigned long poll_interval; /* in jiffies */ /* framework private stuff */ struct mutex lock; bool active; struct module *owner; struct device dev; unsigned int num_devices; struct list_head devices; size_t setbuf_len, getbuf_len; size_t buf_len; u8 *buf; u8 status; unsigned long last_poll; struct task_struct *poll_thread; }; static inline void *siox_master_get_devdata(struct siox_master *smaster) { return dev_get_drvdata(&smaster->dev); } struct siox_master *siox_master_alloc(struct device *dev, size_t size); static inline void siox_master_put(struct siox_master *smaster) { put_device(&smaster->dev); } int siox_master_register(struct siox_master *smaster); void siox_master_unregister(struct siox_master *smaster);