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path: root/drivers/net/wireless/ath/ath9k/gpio.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/gpio.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/gpio.c164
1 files changed, 23 insertions, 141 deletions
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c
index fb4f17a5183d..e369bf7e575f 100644
--- a/drivers/net/wireless/ath/ath9k/gpio.c
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
@@ -20,117 +20,25 @@
20/* LED functions */ 20/* LED functions */
21/********************************/ 21/********************************/
22 22
23static void ath_led_blink_work(struct work_struct *work) 23#ifdef CONFIG_MAC80211_LEDS
24{
25 struct ath_softc *sc = container_of(work, struct ath_softc,
26 ath_led_blink_work.work);
27
28 if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED))
29 return;
30
31 if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) ||
32 (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE))
33 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0);
34 else
35 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin,
36 (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0);
37
38 ieee80211_queue_delayed_work(sc->hw,
39 &sc->ath_led_blink_work,
40 (sc->sc_flags & SC_OP_LED_ON) ?
41 msecs_to_jiffies(sc->led_off_duration) :
42 msecs_to_jiffies(sc->led_on_duration));
43
44 sc->led_on_duration = sc->led_on_cnt ?
45 max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) :
46 ATH_LED_ON_DURATION_IDLE;
47 sc->led_off_duration = sc->led_off_cnt ?
48 max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) :
49 ATH_LED_OFF_DURATION_IDLE;
50 sc->led_on_cnt = sc->led_off_cnt = 0;
51 if (sc->sc_flags & SC_OP_LED_ON)
52 sc->sc_flags &= ~SC_OP_LED_ON;
53 else
54 sc->sc_flags |= SC_OP_LED_ON;
55}
56
57static void ath_led_brightness(struct led_classdev *led_cdev, 24static void ath_led_brightness(struct led_classdev *led_cdev,
58 enum led_brightness brightness) 25 enum led_brightness brightness)
59{ 26{
60 struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); 27 struct ath_softc *sc = container_of(led_cdev, struct ath_softc, led_cdev);
61 struct ath_softc *sc = led->sc; 28 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, (brightness == LED_OFF));
62
63 switch (brightness) {
64 case LED_OFF:
65 if (led->led_type == ATH_LED_ASSOC ||
66 led->led_type == ATH_LED_RADIO) {
67 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin,
68 (led->led_type == ATH_LED_RADIO));
69 sc->sc_flags &= ~SC_OP_LED_ASSOCIATED;
70 if (led->led_type == ATH_LED_RADIO)
71 sc->sc_flags &= ~SC_OP_LED_ON;
72 } else {
73 sc->led_off_cnt++;
74 }
75 break;
76 case LED_FULL:
77 if (led->led_type == ATH_LED_ASSOC) {
78 sc->sc_flags |= SC_OP_LED_ASSOCIATED;
79 if (led_blink)
80 ieee80211_queue_delayed_work(sc->hw,
81 &sc->ath_led_blink_work, 0);
82 } else if (led->led_type == ATH_LED_RADIO) {
83 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0);
84 sc->sc_flags |= SC_OP_LED_ON;
85 } else {
86 sc->led_on_cnt++;
87 }
88 break;
89 default:
90 break;
91 }
92}
93
94static int ath_register_led(struct ath_softc *sc, struct ath_led *led,
95 char *trigger)
96{
97 int ret;
98
99 led->sc = sc;
100 led->led_cdev.name = led->name;
101 led->led_cdev.default_trigger = trigger;
102 led->led_cdev.brightness_set = ath_led_brightness;
103
104 ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev);
105 if (ret)
106 ath_err(ath9k_hw_common(sc->sc_ah),
107 "Failed to register led:%s", led->name);
108 else
109 led->registered = 1;
110 return ret;
111}
112
113static void ath_unregister_led(struct ath_led *led)
114{
115 if (led->registered) {
116 led_classdev_unregister(&led->led_cdev);
117 led->registered = 0;
118 }
119} 29}
120 30
121void ath_deinit_leds(struct ath_softc *sc) 31void ath_deinit_leds(struct ath_softc *sc)
122{ 32{
123 ath_unregister_led(&sc->assoc_led); 33 if (!sc->led_registered)
124 sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; 34 return;
125 ath_unregister_led(&sc->tx_led); 35
126 ath_unregister_led(&sc->rx_led); 36 ath_led_brightness(&sc->led_cdev, LED_OFF);
127 ath_unregister_led(&sc->radio_led); 37 led_classdev_unregister(&sc->led_cdev);
128 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
129} 38}
130 39
131void ath_init_leds(struct ath_softc *sc) 40void ath_init_leds(struct ath_softc *sc)
132{ 41{
133 char *trigger;
134 int ret; 42 int ret;
135 43
136 if (AR_SREV_9287(sc->sc_ah)) 44 if (AR_SREV_9287(sc->sc_ah))
@@ -144,48 +52,22 @@ void ath_init_leds(struct ath_softc *sc)
144 /* LED off, active low */ 52 /* LED off, active low */
145 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); 53 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
146 54
147 if (led_blink) 55 if (!led_blink)
148 INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); 56 sc->led_cdev.default_trigger =
149 57 ieee80211_get_radio_led_name(sc->hw);
150 trigger = ieee80211_get_radio_led_name(sc->hw); 58
151 snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), 59 snprintf(sc->led_name, sizeof(sc->led_name),
152 "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); 60 "ath9k-%s", wiphy_name(sc->hw->wiphy));
153 ret = ath_register_led(sc, &sc->radio_led, trigger); 61 sc->led_cdev.name = sc->led_name;
154 sc->radio_led.led_type = ATH_LED_RADIO; 62 sc->led_cdev.brightness_set = ath_led_brightness;
155 if (ret) 63
156 goto fail; 64 ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev);
157 65 if (ret < 0)
158 trigger = ieee80211_get_assoc_led_name(sc->hw); 66 return;
159 snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), 67
160 "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); 68 sc->led_registered = true;
161 ret = ath_register_led(sc, &sc->assoc_led, trigger);
162 sc->assoc_led.led_type = ATH_LED_ASSOC;
163 if (ret)
164 goto fail;
165
166 trigger = ieee80211_get_tx_led_name(sc->hw);
167 snprintf(sc->tx_led.name, sizeof(sc->tx_led.name),
168 "ath9k-%s::tx", wiphy_name(sc->hw->wiphy));
169 ret = ath_register_led(sc, &sc->tx_led, trigger);
170 sc->tx_led.led_type = ATH_LED_TX;
171 if (ret)
172 goto fail;
173
174 trigger = ieee80211_get_rx_led_name(sc->hw);
175 snprintf(sc->rx_led.name, sizeof(sc->rx_led.name),
176 "ath9k-%s::rx", wiphy_name(sc->hw->wiphy));
177 ret = ath_register_led(sc, &sc->rx_led, trigger);
178 sc->rx_led.led_type = ATH_LED_RX;
179 if (ret)
180 goto fail;
181
182 return;
183
184fail:
185 if (led_blink)
186 cancel_delayed_work_sync(&sc->ath_led_blink_work);
187 ath_deinit_leds(sc);
188} 69}
70#endif
189 71
190/*******************/ 72/*******************/
191/* Rfkill */ 73/* Rfkill */