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path: root/drivers/net/wireless/b43legacy/rfkill.c
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Diffstat (limited to 'drivers/net/wireless/b43legacy/rfkill.c')
-rw-r--r--drivers/net/wireless/b43legacy/rfkill.c115
1 files changed, 18 insertions, 97 deletions
diff --git a/drivers/net/wireless/b43legacy/rfkill.c b/drivers/net/wireless/b43legacy/rfkill.c
index c6230a64505..8783022db11 100644
--- a/drivers/net/wireless/b43legacy/rfkill.c
+++ b/drivers/net/wireless/b43legacy/rfkill.c
@@ -22,15 +22,12 @@
22 22
23*/ 23*/
24 24
25#include "rfkill.h"
26#include "radio.h" 25#include "radio.h"
27#include "b43legacy.h" 26#include "b43legacy.h"
28 27
29#include <linux/kmod.h>
30
31 28
32/* Returns TRUE, if the radio is enabled in hardware. */ 29/* Returns TRUE, if the radio is enabled in hardware. */
33static bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev) 30bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev)
34{ 31{
35 if (dev->phy.rev >= 3) { 32 if (dev->phy.rev >= 3) {
36 if (!(b43legacy_read32(dev, B43legacy_MMIO_RADIO_HWENABLED_HI) 33 if (!(b43legacy_read32(dev, B43legacy_MMIO_RADIO_HWENABLED_HI)
@@ -45,23 +42,31 @@ static bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev)
45} 42}
46 43
47/* The poll callback for the hardware button. */ 44/* The poll callback for the hardware button. */
48static void b43legacy_rfkill_poll(struct rfkill *rfkill, void *data) 45void b43legacy_rfkill_poll(struct ieee80211_hw *hw)
49{ 46{
50 struct b43legacy_wldev *dev = data; 47 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
51 struct b43legacy_wl *wl = dev->wl; 48 struct b43legacy_wldev *dev = wl->current_dev;
49 struct ssb_bus *bus = dev->dev->bus;
52 bool enabled; 50 bool enabled;
51 bool brought_up = false;
53 52
54 mutex_lock(&wl->mutex); 53 mutex_lock(&wl->mutex);
55 if (unlikely(b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)) { 54 if (unlikely(b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)) {
56 mutex_unlock(&wl->mutex); 55 if (ssb_bus_powerup(bus, 0)) {
57 return; 56 mutex_unlock(&wl->mutex);
57 return;
58 }
59 ssb_device_enable(dev->dev, 0);
60 brought_up = true;
58 } 61 }
62
59 enabled = b43legacy_is_hw_radio_enabled(dev); 63 enabled = b43legacy_is_hw_radio_enabled(dev);
64
60 if (unlikely(enabled != dev->radio_hw_enable)) { 65 if (unlikely(enabled != dev->radio_hw_enable)) {
61 dev->radio_hw_enable = enabled; 66 dev->radio_hw_enable = enabled;
62 b43legacyinfo(wl, "Radio hardware status changed to %s\n", 67 b43legacyinfo(wl, "Radio hardware status changed to %s\n",
63 enabled ? "ENABLED" : "DISABLED"); 68 enabled ? "ENABLED" : "DISABLED");
64 enabled = !rfkill_set_hw_state(rfkill, !enabled); 69 wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
65 if (enabled != dev->phy.radio_on) { 70 if (enabled != dev->phy.radio_on) {
66 if (enabled) 71 if (enabled)
67 b43legacy_radio_turn_on(dev); 72 b43legacy_radio_turn_on(dev);
@@ -69,95 +74,11 @@ static void b43legacy_rfkill_poll(struct rfkill *rfkill, void *data)
69 b43legacy_radio_turn_off(dev, 0); 74 b43legacy_radio_turn_off(dev, 0);
70 } 75 }
71 } 76 }
72 mutex_unlock(&wl->mutex);
73}
74
75/* Called when the RFKILL toggled in software.
76 * This is called without locking. */
77static int b43legacy_rfkill_soft_set(void *data, bool blocked)
78{
79 struct b43legacy_wldev *dev = data;
80 struct b43legacy_wl *wl = dev->wl;
81 int ret = -EINVAL;
82 77
83 if (!wl->rfkill.registered) 78 if (brought_up) {
84 return -EINVAL; 79 ssb_device_disable(dev->dev, 0);
85 80 ssb_bus_may_powerdown(bus);
86 mutex_lock(&wl->mutex);
87 if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)
88 goto out_unlock;
89
90 if (!dev->radio_hw_enable)
91 goto out_unlock;
92
93 if (!blocked != dev->phy.radio_on) {
94 if (!blocked)
95 b43legacy_radio_turn_on(dev);
96 else
97 b43legacy_radio_turn_off(dev, 0);
98 } 81 }
99 ret = 0;
100 82
101out_unlock:
102 mutex_unlock(&wl->mutex); 83 mutex_unlock(&wl->mutex);
103 return ret;
104}
105
106const char *b43legacy_rfkill_led_name(struct b43legacy_wldev *dev)
107{
108 struct b43legacy_rfkill *rfk = &(dev->wl->rfkill);
109
110 if (!rfk->registered)
111 return NULL;
112 return rfkill_get_led_trigger_name(rfk->rfkill);
113} 84}
114
115static const struct rfkill_ops b43legacy_rfkill_ops = {
116 .set_block = b43legacy_rfkill_soft_set,
117 .poll = b43legacy_rfkill_poll,
118};
119
120void b43legacy_rfkill_init(struct b43legacy_wldev *dev)
121{
122 struct b43legacy_wl *wl = dev->wl;
123 struct b43legacy_rfkill *rfk = &(wl->rfkill);
124 int err;
125
126 rfk->registered = 0;
127
128 snprintf(rfk->name, sizeof(rfk->name),
129 "b43legacy-%s", wiphy_name(wl->hw->wiphy));
130 rfk->rfkill = rfkill_alloc(rfk->name,
131 dev->dev->dev,
132 RFKILL_TYPE_WLAN,
133 &b43legacy_rfkill_ops, dev);
134 if (!rfk->rfkill)
135 goto out_error;
136
137 err = rfkill_register(rfk->rfkill);
138 if (err)
139 goto err_free;
140
141 rfk->registered = 1;
142
143 return;
144 err_free:
145 rfkill_destroy(rfk->rfkill);
146 out_error:
147 rfk->registered = 0;
148 b43legacywarn(wl, "RF-kill button init failed\n");
149}
150
151void b43legacy_rfkill_exit(struct b43legacy_wldev *dev)
152{
153 struct b43legacy_rfkill *rfk = &(dev->wl->rfkill);
154
155 if (!rfk->registered)
156 return;
157 rfk->registered = 0;
158
159 rfkill_unregister(rfk->rfkill);
160 rfkill_destroy(rfk->rfkill);
161 rfk->rfkill = NULL;
162}
163