drivers/net/wireless/ti/wlcore/debugfs.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * This file is part of wl1271
   4  *
   5  * Copyright (C) 2009 Nokia Corporation
   6  *
   7  * Contact: Luciano Coelho <[email protected]>
   8  */
   9
  10 #ifndef __DEBUGFS_H__
  11 #define __DEBUGFS_H__
  12
  13 #include "wlcore.h"
  14
  15 __printf(4, 5) int wl1271_format_buffer(char __user *userbuf, size_t count,
  16                                         loff_t *ppos, char *fmt, ...);
  17
  18 int wl1271_debugfs_init(struct wl1271 *wl);
  19 void wl1271_debugfs_exit(struct wl1271 *wl);
  20 void wl1271_debugfs_reset(struct wl1271 *wl);
  21 void wl1271_debugfs_update_stats(struct wl1271 *wl);
  22
  23 #define DEBUGFS_FORMAT_BUFFER_SIZE 256
  24
  25 #define DEBUGFS_READONLY_FILE(name, fmt, value...)                      \
  26 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
  27                             size_t count, loff_t *ppos)                 \
  28 {                                                                       \
  29         struct wl1271 *wl = file->private_data;                         \
  30         return wl1271_format_buffer(userbuf, count, ppos,               \
  31                                     fmt "\n", ##value);                 \
  32 }                                                                       \
  33                                                                         \
  34 static const struct file_operations name## _ops = {                     \
  35         .read = name## _read,                                           \
  36         .open = simple_open,                                            \
  37         .llseek = generic_file_llseek,                                  \
  38 };
  39
  40 #define DEBUGFS_ADD(name, parent)                                       \
  41         do {                                                            \
  42                 debugfs_create_file(#name, 0400, parent,                \
  43                                     wl, &name## _ops);                  \
  44         } while (0)
  45
  46
  47 #define DEBUGFS_ADD_PREFIX(prefix, name, parent)                        \
  48         do {                                                            \
  49                 debugfs_create_file(#name, 0400, parent,                \
  50                                     wl, &prefix## _## name## _ops);     \
  51         } while (0)
  52
  53 #define DEBUGFS_FWSTATS_FILE(sub, name, fmt, struct_type)               \
  54 static ssize_t sub## _ ##name## _read(struct file *file,                \
  55                                       char __user *userbuf,             \
  56                                       size_t count, loff_t *ppos)       \
  57 {                                                                       \
  58         struct wl1271 *wl = file->private_data;                         \
  59         struct struct_type *stats = wl->stats.fw_stats;                 \
  60                                                                         \
  61         wl1271_debugfs_update_stats(wl);                                \
  62                                                                         \
  63         return wl1271_format_buffer(userbuf, count, ppos, fmt "\n",     \
  64                                     stats->sub.name);                   \
  65 }                                                                       \
  66                                                                         \
  67 static const struct file_operations sub## _ ##name## _ops = {           \
  68         .read = sub## _ ##name## _read,                                 \
  69         .open = simple_open,                                            \
  70         .llseek = generic_file_llseek,                                  \
  71 };
  72
  73 #define DEBUGFS_FWSTATS_FILE_ARRAY(sub, name, len, struct_type)         \
  74 static ssize_t sub## _ ##name## _read(struct file *file,                \
  75                                       char __user *userbuf,             \
  76                                       size_t count, loff_t *ppos)       \
  77 {                                                                       \
  78         struct wl1271 *wl = file->private_data;                         \
  79         struct struct_type *stats = wl->stats.fw_stats;                 \
  80         char buf[DEBUGFS_FORMAT_BUFFER_SIZE] = "";                      \
  81         int pos = 0;                                                    \
  82         int i;                                                          \
  83                                                                         \
  84         wl1271_debugfs_update_stats(wl);                                \
  85                                                                         \
  86         for (i = 0; i < len && pos < sizeof(buf); i++)                  \
  87                 pos += snprintf(buf + pos, sizeof(buf) - pos,           \
  88                          "[%d] = %d\n", i, stats->sub.name[i]);         \
  89                                                                         \
  90         return wl1271_format_buffer(userbuf, count, ppos, "%s", buf);   \
  91 }                                                                       \
  92                                                                         \
  93 static const struct file_operations sub## _ ##name## _ops = {           \
  94         .read = sub## _ ##name## _read,                                 \
  95         .open = simple_open,                                            \
  96         .llseek = generic_file_llseek,                                  \
  97 };
  98
  99 #define DEBUGFS_FWSTATS_ADD(sub, name)                                  \
 100         DEBUGFS_ADD(sub## _ ##name, stats)
 101
 102
 103 #endif /* WL1271_DEBUGFS_H */