2 * This file is part of wlcore
4 * Copyright (C) 2013 Texas Instruments Inc.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
27 static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
28 struct device_attribute *attr,
31 struct wl1271 *wl = dev_get_drvdata(dev);
36 mutex_lock(&wl->mutex);
37 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
39 mutex_unlock(&wl->mutex);
45 static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
46 struct device_attribute *attr,
47 const char *buf, size_t count)
49 struct wl1271 *wl = dev_get_drvdata(dev);
53 ret = kstrtoul(buf, 10, &res);
55 wl1271_warning("incorrect value written to bt_coex_mode");
59 mutex_lock(&wl->mutex);
63 if (res == wl->sg_enabled)
68 if (unlikely(wl->state != WLCORE_STATE_ON))
71 ret = wl1271_ps_elp_wakeup(wl);
75 wl1271_acx_sg_enable(wl, wl->sg_enabled);
76 wl1271_ps_elp_sleep(wl);
79 mutex_unlock(&wl->mutex);
83 static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
84 wl1271_sysfs_show_bt_coex_state,
85 wl1271_sysfs_store_bt_coex_state);
87 static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
88 struct device_attribute *attr,
91 struct wl1271 *wl = dev_get_drvdata(dev);
96 mutex_lock(&wl->mutex);
97 if (wl->hw_pg_ver >= 0)
98 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
100 len = snprintf(buf, len, "n/a\n");
101 mutex_unlock(&wl->mutex);
106 static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
107 wl1271_sysfs_show_hw_pg_ver, NULL);
109 static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
110 struct bin_attribute *bin_attr,
111 char *buffer, loff_t pos, size_t count)
113 struct device *dev = container_of(kobj, struct device, kobj);
114 struct wl1271 *wl = dev_get_drvdata(dev);
118 ret = mutex_lock_interruptible(&wl->mutex);
122 /* Check if the fwlog is still valid */
123 if (wl->fwlog_size < 0) {
124 mutex_unlock(&wl->mutex);
128 /* Seeking is not supported - old logs are not kept. Disregard pos. */
129 len = min_t(size_t, count, wl->fwlog_size);
130 wl->fwlog_size -= len;
131 memcpy(buffer, wl->fwlog, len);
133 /* Make room for new messages */
134 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
136 mutex_unlock(&wl->mutex);
141 static const struct bin_attribute fwlog_attr = {
142 .attr = {.name = "fwlog", .mode = S_IRUSR},
143 .read = wl1271_sysfs_read_fwlog,
146 int wlcore_sysfs_init(struct wl1271 *wl)
150 /* Create sysfs file to control bt coex state */
151 ret = device_create_file(wl->dev, &dev_attr_bt_coex_state);
153 wl1271_error("failed to create sysfs file bt_coex_state");
157 /* Create sysfs file to get HW PG version */
158 ret = device_create_file(wl->dev, &dev_attr_hw_pg_ver);
160 wl1271_error("failed to create sysfs file hw_pg_ver");
161 goto out_bt_coex_state;
164 /* Create sysfs file for the FW log */
165 ret = device_create_bin_file(wl->dev, &fwlog_attr);
167 wl1271_error("failed to create sysfs file fwlog");
174 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
177 device_remove_file(wl->dev, &dev_attr_bt_coex_state);
183 void wlcore_sysfs_free(struct wl1271 *wl)
185 device_remove_bin_file(wl->dev, &fwlog_attr);
187 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
189 device_remove_file(wl->dev, &dev_attr_bt_coex_state);