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 <luciano.coelho@nokia.com> 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 */ 104