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