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Diffstat (limited to 'drivers/net/wireless/iwlegacy/iwl-led.c')
-rw-r--r--drivers/net/wireless/iwlegacy/iwl-led.c205
1 files changed, 0 insertions, 205 deletions
diff --git a/drivers/net/wireless/iwlegacy/iwl-led.c b/drivers/net/wireless/iwlegacy/iwl-led.c
deleted file mode 100644
index dc568a474c5d..000000000000
--- a/drivers/net/wireless/iwlegacy/iwl-led.c
+++ /dev/null
@@ -1,205 +0,0 @@
1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
26
27
28#include <linux/kernel.h>
29#include <linux/module.h>
30#include <linux/init.h>
31#include <linux/pci.h>
32#include <linux/dma-mapping.h>
33#include <linux/delay.h>
34#include <linux/skbuff.h>
35#include <linux/netdevice.h>
36#include <net/mac80211.h>
37#include <linux/etherdevice.h>
38#include <asm/unaligned.h>
39
40#include "iwl-dev.h"
41#include "iwl-core.h"
42#include "iwl-io.h"
43
44/* default: IWL_LED_BLINK(0) using blinking index table */
45static int led_mode;
46module_param(led_mode, int, S_IRUGO);
47MODULE_PARM_DESC(led_mode, "0=system default, "
48 "1=On(RF On)/Off(RF Off), 2=blinking");
49
50/* Throughput OFF time(ms) ON time (ms)
51 * >300 25 25
52 * >200 to 300 40 40
53 * >100 to 200 55 55
54 * >70 to 100 65 65
55 * >50 to 70 75 75
56 * >20 to 50 85 85
57 * >10 to 20 95 95
58 * >5 to 10 110 110
59 * >1 to 5 130 130
60 * >0 to 1 167 167
61 * <=0 SOLID ON
62 */
63static const struct ieee80211_tpt_blink iwl_blink[] = {
64 { .throughput = 0, .blink_time = 334 },
65 { .throughput = 1 * 1024 - 1, .blink_time = 260 },
66 { .throughput = 5 * 1024 - 1, .blink_time = 220 },
67 { .throughput = 10 * 1024 - 1, .blink_time = 190 },
68 { .throughput = 20 * 1024 - 1, .blink_time = 170 },
69 { .throughput = 50 * 1024 - 1, .blink_time = 150 },
70 { .throughput = 70 * 1024 - 1, .blink_time = 130 },
71 { .throughput = 100 * 1024 - 1, .blink_time = 110 },
72 { .throughput = 200 * 1024 - 1, .blink_time = 80 },
73 { .throughput = 300 * 1024 - 1, .blink_time = 50 },
74};
75
76/*
77 * Adjust led blink rate to compensate on a MAC Clock difference on every HW
78 * Led blink rate analysis showed an average deviation of 0% on 3945,
79 * 5% on 4965 HW.
80 * Need to compensate on the led on/off time per HW according to the deviation
81 * to achieve the desired led frequency
82 * The calculation is: (100-averageDeviation)/100 * blinkTime
83 * For code efficiency the calculation will be:
84 * compensation = (100 - averageDeviation) * 64 / 100
85 * NewBlinkTime = (compensation * BlinkTime) / 64
86 */
87static inline u8 iwl_legacy_blink_compensation(struct iwl_priv *priv,
88 u8 time, u16 compensation)
89{
90 if (!compensation) {
91 IWL_ERR(priv, "undefined blink compensation: "
92 "use pre-defined blinking time\n");
93 return time;
94 }
95
96 return (u8)((time * compensation) >> 6);
97}
98
99/* Set led pattern command */
100static int iwl_legacy_led_cmd(struct iwl_priv *priv,
101 unsigned long on,
102 unsigned long off)
103{
104 struct iwl_led_cmd led_cmd = {
105 .id = IWL_LED_LINK,
106 .interval = IWL_DEF_LED_INTRVL
107 };
108 int ret;
109
110 if (!test_bit(STATUS_READY, &priv->status))
111 return -EBUSY;
112
113 if (priv->blink_on == on && priv->blink_off == off)
114 return 0;
115
116 if (off == 0) {
117 /* led is SOLID_ON */
118 on = IWL_LED_SOLID;
119 }
120
121 IWL_DEBUG_LED(priv, "Led blink time compensation=%u\n",
122 priv->cfg->base_params->led_compensation);
123 led_cmd.on = iwl_legacy_blink_compensation(priv, on,
124 priv->cfg->base_params->led_compensation);
125 led_cmd.off = iwl_legacy_blink_compensation(priv, off,
126 priv->cfg->base_params->led_compensation);
127
128 ret = priv->cfg->ops->led->cmd(priv, &led_cmd);
129 if (!ret) {
130 priv->blink_on = on;
131 priv->blink_off = off;
132 }
133 return ret;
134}
135
136static void iwl_legacy_led_brightness_set(struct led_classdev *led_cdev,
137 enum led_brightness brightness)
138{
139 struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
140 unsigned long on = 0;
141
142 if (brightness > 0)
143 on = IWL_LED_SOLID;
144
145 iwl_legacy_led_cmd(priv, on, 0);
146}
147
148static int iwl_legacy_led_blink_set(struct led_classdev *led_cdev,
149 unsigned long *delay_on,
150 unsigned long *delay_off)
151{
152 struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
153
154 return iwl_legacy_led_cmd(priv, *delay_on, *delay_off);
155}
156
157void iwl_legacy_leds_init(struct iwl_priv *priv)
158{
159 int mode = led_mode;
160 int ret;
161
162 if (mode == IWL_LED_DEFAULT)
163 mode = priv->cfg->led_mode;
164
165 priv->led.name = kasprintf(GFP_KERNEL, "%s-led",
166 wiphy_name(priv->hw->wiphy));
167 priv->led.brightness_set = iwl_legacy_led_brightness_set;
168 priv->led.blink_set = iwl_legacy_led_blink_set;
169 priv->led.max_brightness = 1;
170
171 switch (mode) {
172 case IWL_LED_DEFAULT:
173 WARN_ON(1);
174 break;
175 case IWL_LED_BLINK:
176 priv->led.default_trigger =
177 ieee80211_create_tpt_led_trigger(priv->hw,
178 IEEE80211_TPT_LEDTRIG_FL_CONNECTED,
179 iwl_blink, ARRAY_SIZE(iwl_blink));
180 break;
181 case IWL_LED_RF_STATE:
182 priv->led.default_trigger =
183 ieee80211_get_radio_led_name(priv->hw);
184 break;
185 }
186
187 ret = led_classdev_register(&priv->pci_dev->dev, &priv->led);
188 if (ret) {
189 kfree(priv->led.name);
190 return;
191 }
192
193 priv->led_registered = true;
194}
195EXPORT_SYMBOL(iwl_legacy_leds_init);
196
197void iwl_legacy_leds_exit(struct iwl_priv *priv)
198{
199 if (!priv->led_registered)
200 return;
201
202 led_classdev_unregister(&priv->led);
203 kfree(priv->led.name);
204}
205EXPORT_SYMBOL(iwl_legacy_leds_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2026-04-27 05:36:43 -0400