root/drivers/staging/fieldbus/anybuss/anybuss-client.h

INCLUDED FROM

DEFINITIONS

1. to_anybuss_client
2. to_anybuss_client_driver
3. anybuss_get_drvdata
4. anybuss_set_drvdata

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Anybus-S client adapter definitions
   4  *
   5  * Copyright 2018 Arcx Inc
   6  */
   7 
   8 #ifndef __LINUX_ANYBUSS_CLIENT_H__
   9 #define __LINUX_ANYBUSS_CLIENT_H__
  10 
  11 #include <linux/device.h>
  12 #include <linux/types.h>
  13 #include <linux/poll.h>
  14 
  15 struct anybuss_host;
  16 
  17 struct anybuss_client {
  18         struct device dev;
  19         struct anybuss_host *host;
  20         __be16 anybus_id;
  21         /*
  22          * these can be optionally set by the client to receive event
  23          * notifications from the host.
  24          */
  25         void (*on_area_updated)(struct anybuss_client *client);
  26         void (*on_online_changed)(struct anybuss_client *client, bool online);
  27 };
  28 
  29 struct anybuss_client_driver {
  30         struct device_driver driver;
  31         int (*probe)(struct anybuss_client *adev);
  32         int (*remove)(struct anybuss_client *adev);
  33         u16 anybus_id;
  34 };
  35 
  36 int anybuss_client_driver_register(struct anybuss_client_driver *drv);
  37 void anybuss_client_driver_unregister(struct anybuss_client_driver *drv);
  38 
  39 static inline struct anybuss_client *to_anybuss_client(struct device *dev)
  40 {
  41         return container_of(dev, struct anybuss_client, dev);
  42 }
  43 
  44 static inline struct anybuss_client_driver *
  45 to_anybuss_client_driver(struct device_driver *drv)
  46 {
  47         return container_of(drv, struct anybuss_client_driver, driver);
  48 }
  49 
  50 static inline void *
  51 anybuss_get_drvdata(const struct anybuss_client *client)
  52 {
  53         return dev_get_drvdata(&client->dev);
  54 }
  55 
  56 static inline void
  57 anybuss_set_drvdata(struct anybuss_client *client, void *data)
  58 {
  59         dev_set_drvdata(&client->dev, data);
  60 }
  61 
  62 int anybuss_set_power(struct anybuss_client *client, bool power_on);
  63 
  64 enum anybuss_offl_mode {
  65         AB_OFFL_MODE_CLEAR = 0,
  66         AB_OFFL_MODE_FREEZE,
  67         AB_OFFL_MODE_SET
  68 };
  69 
  70 struct anybuss_memcfg {
  71         u16 input_io;
  72         u16 input_dpram;
  73         u16 input_total;
  74 
  75         u16 output_io;
  76         u16 output_dpram;
  77         u16 output_total;
  78 
  79         enum anybuss_offl_mode offl_mode;
  80 };
  81 
  82 int anybuss_start_init(struct anybuss_client *client,
  83                        const struct anybuss_memcfg *cfg);
  84 int anybuss_finish_init(struct anybuss_client *client);
  85 int anybuss_read_fbctrl(struct anybuss_client *client, u16 addr,
  86                         void *buf, size_t count);
  87 int anybuss_send_msg(struct anybuss_client *client, u16 cmd_num,
  88                      const void *buf, size_t count);
  89 int anybuss_send_ext(struct anybuss_client *client, u16 cmd_num,
  90                      const void *buf, size_t count);
  91 int anybuss_recv_msg(struct anybuss_client *client, u16 cmd_num,
  92                      void *buf, size_t count);
  93 
  94 /* these help clients make a struct file_operations */
  95 int anybuss_write_input(struct anybuss_client *client,
  96                         const char __user *buf, size_t size,
  97                                 loff_t *offset);
  98 int anybuss_read_output(struct anybuss_client *client,
  99                         char __user *buf, size_t size,
 100                                 loff_t *offset);
 101 
 102 #endif /* __LINUX_ANYBUSS_CLIENT_H__ */