diff options
Diffstat (limited to 'drivers/staging/fieldbus/anybuss/anybuss-client.h')
-rw-r--r-- | drivers/staging/fieldbus/anybuss/anybuss-client.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/staging/fieldbus/anybuss/anybuss-client.h b/drivers/staging/fieldbus/anybuss/anybuss-client.h new file mode 100644 index 000000000000..0c4b6a1ffe10 --- /dev/null +++ b/drivers/staging/fieldbus/anybuss/anybuss-client.h @@ -0,0 +1,102 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Anybus-S client adapter definitions + * + * Copyright 2018 Arcx Inc + */ + +#ifndef __LINUX_ANYBUSS_CLIENT_H__ +#define __LINUX_ANYBUSS_CLIENT_H__ + +#include <linux/device.h> +#include <linux/types.h> +#include <linux/poll.h> + +struct anybuss_host; + +struct anybuss_client { + struct device dev; + struct anybuss_host *host; + __be16 anybus_id; + /* + * these can be optionally set by the client to receive event + * notifications from the host. + */ + void (*on_area_updated)(struct anybuss_client *client); + void (*on_online_changed)(struct anybuss_client *client, bool online); +}; + +struct anybuss_client_driver { + struct device_driver driver; + int (*probe)(struct anybuss_client *adev); + int (*remove)(struct anybuss_client *adev); + u16 anybus_id; +}; + +int anybuss_client_driver_register(struct anybuss_client_driver *drv); +void anybuss_client_driver_unregister(struct anybuss_client_driver *drv); + +static inline struct anybuss_client *to_anybuss_client(struct device *dev) +{ + return container_of(dev, struct anybuss_client, dev); +} + +static inline struct anybuss_client_driver * +to_anybuss_client_driver(struct device_driver *drv) +{ + return container_of(drv, struct anybuss_client_driver, driver); +} + +static inline void * +anybuss_get_drvdata(const struct anybuss_client *client) +{ + return dev_get_drvdata(&client->dev); +} + +static inline void +anybuss_set_drvdata(struct anybuss_client *client, void *data) +{ + dev_set_drvdata(&client->dev, data); +} + +int anybuss_set_power(struct anybuss_client *client, bool power_on); + +enum anybuss_offl_mode { + AB_OFFL_MODE_CLEAR = 0, + AB_OFFL_MODE_FREEZE, + AB_OFFL_MODE_SET +}; + +struct anybuss_memcfg { + u16 input_io; + u16 input_dpram; + u16 input_total; + + u16 output_io; + u16 output_dpram; + u16 output_total; + + enum anybuss_offl_mode offl_mode; +}; + +int anybuss_start_init(struct anybuss_client *client, + const struct anybuss_memcfg *cfg); +int anybuss_finish_init(struct anybuss_client *client); +int anybuss_read_fbctrl(struct anybuss_client *client, u16 addr, + void *buf, size_t count); +int anybuss_send_msg(struct anybuss_client *client, u16 cmd_num, + const void *buf, size_t count); +int anybuss_send_ext(struct anybuss_client *client, u16 cmd_num, + const void *buf, size_t count); +int anybuss_recv_msg(struct anybuss_client *client, u16 cmd_num, + void *buf, size_t count); + +/* these help clients make a struct file_operations */ +int anybuss_write_input(struct anybuss_client *client, + const char __user *buf, size_t size, + loff_t *offset); +int anybuss_read_output(struct anybuss_client *client, + char __user *buf, size_t size, + loff_t *offset); + +#endif /* __LINUX_ANYBUSS_CLIENT_H__ */ |