Commit | Line | Data |
---|---|---|
bbecb07f UKK |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* | |
3 | * Copyright (C) 2015-2017 Pengutronix, Uwe Kleine-König <kernel@pengutronix.de> | |
4 | */ | |
5 | #include <linux/kernel.h> | |
6 | #include <linux/kthread.h> | |
7 | #include <linux/siox.h> | |
8 | ||
9 | #define to_siox_master(_dev) container_of((_dev), struct siox_master, dev) | |
10 | struct siox_master { | |
11 | /* these fields should be initialized by the driver */ | |
12 | int busno; | |
13 | int (*pushpull)(struct siox_master *smaster, | |
14 | size_t setbuf_len, const u8 setbuf[], | |
15 | size_t getbuf_len, u8 getbuf[]); | |
16 | ||
17 | /* might be initialized by the driver, if 0 it is set to HZ / 40 */ | |
18 | unsigned long poll_interval; /* in jiffies */ | |
19 | ||
20 | /* framework private stuff */ | |
21 | struct mutex lock; | |
22 | bool active; | |
23 | struct module *owner; | |
24 | struct device dev; | |
25 | unsigned int num_devices; | |
26 | struct list_head devices; | |
27 | ||
28 | size_t setbuf_len, getbuf_len; | |
29 | size_t buf_len; | |
30 | u8 *buf; | |
31 | u8 status; | |
32 | ||
33 | unsigned long last_poll; | |
34 | struct task_struct *poll_thread; | |
35 | }; | |
36 | ||
37 | static inline void *siox_master_get_devdata(struct siox_master *smaster) | |
38 | { | |
39 | return dev_get_drvdata(&smaster->dev); | |
40 | } | |
41 | ||
42 | struct siox_master *siox_master_alloc(struct device *dev, size_t size); | |
43 | static inline void siox_master_put(struct siox_master *smaster) | |
44 | { | |
45 | put_device(&smaster->dev); | |
46 | } | |
47 | ||
48 | int siox_master_register(struct siox_master *smaster); | |
49 | void siox_master_unregister(struct siox_master *smaster); |