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-rw-r--r--drivers/siox/siox.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/siox/siox.h b/drivers/siox/siox.h
new file mode 100644
index 000000000000..c674bf6fb119
--- /dev/null
+++ b/drivers/siox/siox.h
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2017 Pengutronix, Uwe Kleine-K├Ânig <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);