1ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler/* 2ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver 3ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * drivers/misc/iwmc3200top/debufs.c 4ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 5ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * Copyright (C) 2009 Intel Corporation. All rights reserved. 6ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 7ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * This program is free software; you can redistribute it and/or 8ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * modify it under the terms of the GNU General Public License version 9ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 2 as published by the Free Software Foundation. 10ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 11ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * This program is distributed in the hope that it will be useful, 12ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * but WITHOUT ANY WARRANTY; without even the implied warranty of 13ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * GNU General Public License for more details. 15ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 16ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * You should have received a copy of the GNU General Public License 17ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * along with this program; if not, write to the Free Software 18ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 02110-1301, USA. 20ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 21ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 22ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> 23ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * - 24ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 25ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler */ 26ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 27ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include <linux/kernel.h> 285a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 29ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include <linux/string.h> 30ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include <linux/ctype.h> 31ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include <linux/mmc/sdio_func.h> 32ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include <linux/mmc/sdio.h> 33ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include <linux/debugfs.h> 34ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 35ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include "iwmc3200top.h" 36ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include "fw-msg.h" 37ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include "log.h" 38ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#include "debugfs.h" 39ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 40ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 41ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 42ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler/* Constants definition */ 43ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#define HEXADECIMAL_RADIX 16 44ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 45ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler/* Functions definition */ 46ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 47ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 48ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#define DEBUGFS_ADD(name, parent) do { \ 49ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler dbgfs->dbgfs_##parent##_files.file_##name = \ 50ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv, \ 51ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler &iwmct_dbgfs_##name##_ops); \ 52ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler} while (0) 53ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 54ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#define DEBUGFS_RM(name) do { \ 55ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler debugfs_remove(name); \ 56ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler name = NULL; \ 57ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler} while (0) 58ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 59ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#define DEBUGFS_READ_FUNC(name) \ 60ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winklerssize_t iwmct_dbgfs_##name##_read(struct file *file, \ 61ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler char __user *user_buf, \ 62ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler size_t count, loff_t *ppos); 63ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 64ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#define DEBUGFS_WRITE_FUNC(name) \ 65ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winklerssize_t iwmct_dbgfs_##name##_write(struct file *file, \ 66ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler const char __user *user_buf, \ 67ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler size_t count, loff_t *ppos); 68ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 69ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#define DEBUGFS_READ_FILE_OPS(name) \ 70ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler DEBUGFS_READ_FUNC(name) \ 71ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler static const struct file_operations iwmct_dbgfs_##name##_ops = { \ 72ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler .read = iwmct_dbgfs_##name##_read, \ 73ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler .open = iwmct_dbgfs_open_file_generic, \ 742b18ab36cf7e956fb5b5ee12847e94fc66d496f4Arnd Bergmann .llseek = generic_file_llseek, \ 75ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler }; 76ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 77ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#define DEBUGFS_WRITE_FILE_OPS(name) \ 78ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler DEBUGFS_WRITE_FUNC(name) \ 79ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler static const struct file_operations iwmct_dbgfs_##name##_ops = { \ 80ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler .write = iwmct_dbgfs_##name##_write, \ 81ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler .open = iwmct_dbgfs_open_file_generic, \ 822b18ab36cf7e956fb5b5ee12847e94fc66d496f4Arnd Bergmann .llseek = generic_file_llseek, \ 83ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler }; 84ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 85ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler#define DEBUGFS_READ_WRITE_FILE_OPS(name) \ 86ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler DEBUGFS_READ_FUNC(name) \ 87ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler DEBUGFS_WRITE_FUNC(name) \ 88ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler static const struct file_operations iwmct_dbgfs_##name##_ops = {\ 89ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler .write = iwmct_dbgfs_##name##_write, \ 90ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler .read = iwmct_dbgfs_##name##_read, \ 91ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler .open = iwmct_dbgfs_open_file_generic, \ 922b18ab36cf7e956fb5b5ee12847e94fc66d496f4Arnd Bergmann .llseek = generic_file_llseek, \ 93ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler }; 94ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 95ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 96ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler/* Debugfs file ops definitions */ 97ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 98ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler/* 99ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * Create the debugfs files and directories 100ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 101ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler */ 102ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winklervoid iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name) 103ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler{ 104ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler struct iwmct_debugfs *dbgfs; 105ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 106ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler dbgfs = kzalloc(sizeof(struct iwmct_debugfs), GFP_KERNEL); 107ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler if (!dbgfs) { 108ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler LOG_ERROR(priv, DEBUGFS, "failed to allocate %zd bytes\n", 109ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler sizeof(struct iwmct_debugfs)); 110ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler return; 111ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler } 112ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 113ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler priv->dbgfs = dbgfs; 114ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler dbgfs->name = name; 115ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler dbgfs->dir_drv = debugfs_create_dir(name, NULL); 116ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler if (!dbgfs->dir_drv) { 117ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler LOG_ERROR(priv, DEBUGFS, "failed to create debugfs dir\n"); 118ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler return; 119ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler } 120ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 121ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler return; 122ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler} 123ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 124ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler/** 125ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * Remove the debugfs files and directories 126ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler * 127ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler */ 128ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winklervoid iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs) 129ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler{ 130ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler if (!dbgfs) 131ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler return; 132ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 133ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler DEBUGFS_RM(dbgfs->dir_drv); 134ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler kfree(dbgfs); 135ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler dbgfs = NULL; 136ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler} 137ab69a5ae2bdc0b5e20e935a7b75f30aa3f4c3baeTomas Winkler 138