2013-10-09 04:25:58 +08:00
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/*
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* Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/debugfs.h>
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#include <linux/uaccess.h>
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#include "wcn36xx.h"
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#include "debug.h"
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#include "pmc.h"
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#ifdef CONFIG_WCN36XX_DEBUGFS
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static ssize_t read_file_bool_bmps(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct wcn36xx *wcn = file->private_data;
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struct wcn36xx_vif *vif_priv = NULL;
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struct ieee80211_vif *vif = NULL;
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char buf[3];
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list_for_each_entry(vif_priv, &wcn->vif_list, list) {
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2016-04-19 13:00:41 +08:00
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vif = wcn36xx_priv_to_vif(vif_priv);
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2013-10-09 04:25:58 +08:00
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if (NL80211_IFTYPE_STATION == vif->type) {
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if (vif_priv->pw_state == WCN36XX_BMPS)
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buf[0] = '1';
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else
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buf[0] = '0';
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break;
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}
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}
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buf[1] = '\n';
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buf[2] = 0x00;
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return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
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}
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static ssize_t write_file_bool_bmps(struct file *file,
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const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct wcn36xx *wcn = file->private_data;
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struct wcn36xx_vif *vif_priv = NULL;
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struct ieee80211_vif *vif = NULL;
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char buf[32];
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int buf_size;
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buf_size = min(count, (sizeof(buf)-1));
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if (copy_from_user(buf, user_buf, buf_size))
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return -EFAULT;
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switch (buf[0]) {
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case 'y':
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case 'Y':
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case '1':
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list_for_each_entry(vif_priv, &wcn->vif_list, list) {
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2016-04-19 13:00:41 +08:00
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vif = wcn36xx_priv_to_vif(vif_priv);
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2013-10-09 04:25:58 +08:00
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if (NL80211_IFTYPE_STATION == vif->type) {
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wcn36xx_enable_keep_alive_null_packet(wcn, vif);
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wcn36xx_pmc_enter_bmps_state(wcn, vif);
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}
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}
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break;
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case 'n':
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case 'N':
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case '0':
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list_for_each_entry(vif_priv, &wcn->vif_list, list) {
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2016-04-19 13:00:41 +08:00
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vif = wcn36xx_priv_to_vif(vif_priv);
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2013-10-09 04:25:58 +08:00
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if (NL80211_IFTYPE_STATION == vif->type)
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wcn36xx_pmc_exit_bmps_state(wcn, vif);
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}
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break;
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}
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return count;
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}
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static const struct file_operations fops_wcn36xx_bmps = {
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2013-10-11 23:30:26 +08:00
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.open = simple_open,
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2013-10-09 04:25:58 +08:00
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.read = read_file_bool_bmps,
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.write = write_file_bool_bmps,
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};
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static ssize_t write_file_dump(struct file *file,
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const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct wcn36xx *wcn = file->private_data;
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char buf[255], *tmp;
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int buf_size;
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u32 arg[WCN36xx_MAX_DUMP_ARGS];
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int i;
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memset(buf, 0, sizeof(buf));
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memset(arg, 0, sizeof(arg));
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buf_size = min(count, (sizeof(buf) - 1));
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if (copy_from_user(buf, user_buf, buf_size))
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return -EFAULT;
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tmp = buf;
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for (i = 0; i < WCN36xx_MAX_DUMP_ARGS; i++) {
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char *begin;
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begin = strsep(&tmp, " ");
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if (begin == NULL)
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break;
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2013-11-06 15:41:28 +08:00
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if (kstrtou32(begin, 0, &arg[i]) != 0)
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2013-10-09 04:25:58 +08:00
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break;
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}
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wcn36xx_info("DUMP args is %d %d %d %d %d\n", arg[0], arg[1], arg[2],
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arg[3], arg[4]);
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wcn36xx_smd_dump_cmd_req(wcn, arg[0], arg[1], arg[2], arg[3], arg[4]);
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return count;
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}
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static const struct file_operations fops_wcn36xx_dump = {
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2013-10-11 23:30:26 +08:00
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.open = simple_open,
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2013-10-09 04:25:58 +08:00
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.write = write_file_dump,
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};
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#define ADD_FILE(name, mode, fop, priv_data) \
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do { \
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struct dentry *d; \
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d = debugfs_create_file(__stringify(name), \
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mode, dfs->rootdir, \
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priv_data, fop); \
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dfs->file_##name.dentry = d; \
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if (IS_ERR(d)) { \
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wcn36xx_warn("Create the debugfs entry failed");\
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dfs->file_##name.dentry = NULL; \
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} \
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} while (0)
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void wcn36xx_debugfs_init(struct wcn36xx *wcn)
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{
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struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
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dfs->rootdir = debugfs_create_dir(KBUILD_MODNAME,
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wcn->hw->wiphy->debugfsdir);
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if (IS_ERR(dfs->rootdir)) {
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wcn36xx_warn("Create the debugfs failed\n");
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dfs->rootdir = NULL;
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}
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2018-03-24 06:54:37 +08:00
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ADD_FILE(bmps_switcher, 0600, &fops_wcn36xx_bmps, wcn);
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ADD_FILE(dump, 0200, &fops_wcn36xx_dump, wcn);
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2013-10-09 04:25:58 +08:00
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}
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void wcn36xx_debugfs_exit(struct wcn36xx *wcn)
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{
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struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
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debugfs_remove_recursive(dfs->rootdir);
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}
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#endif /* CONFIG_WCN36XX_DEBUGFS */
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