1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
28 #include <linux/kernel.h>
29 #include <linux/module.h>
30 #include <linux/version.h>
31 #include <linux/init.h>
33 #include <net/mac80211.h>
35 #include "iwl-eeprom.h"
38 #include "iwl-helpers.h"
41 /* software rf-kill from user */
42 static int iwl_rfkill_soft_rf_kill(void *data
, enum rfkill_state state
)
44 struct iwl_priv
*priv
= data
;
47 if (!priv
->rfkill_mngr
.rfkill
)
50 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
53 IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state
);
54 mutex_lock(&priv
->mutex
);
57 case RFKILL_STATE_UNBLOCKED
:
58 iwl_radio_kill_sw_enable_radio(priv
);
59 /* if HW rf-kill is set dont allow ON state */
60 if (iwl_is_rfkill(priv
))
63 case RFKILL_STATE_SOFT_BLOCKED
:
64 iwl_radio_kill_sw_disable_radio(priv
);
65 if (!iwl_is_rfkill(priv
))
69 IWL_WARNING("we recieved unexpected RFKILL state %d\n", state
);
72 mutex_unlock(&priv
->mutex
);
77 int iwl_rfkill_init(struct iwl_priv
*priv
)
79 struct device
*device
= wiphy_dev(priv
->hw
->wiphy
);
82 BUG_ON(device
== NULL
);
84 IWL_DEBUG_RF_KILL("Initializing RFKILL.\n");
85 priv
->rfkill_mngr
.rfkill
= rfkill_allocate(device
, RFKILL_TYPE_WLAN
);
86 if (!priv
->rfkill_mngr
.rfkill
) {
87 IWL_ERROR("Unable to allocate rfkill device.\n");
92 priv
->rfkill_mngr
.rfkill
->name
= priv
->cfg
->name
;
93 priv
->rfkill_mngr
.rfkill
->data
= priv
;
94 priv
->rfkill_mngr
.rfkill
->state
= RFKILL_STATE_ON
;
95 priv
->rfkill_mngr
.rfkill
->toggle_radio
= iwl_rfkill_soft_rf_kill
;
96 priv
->rfkill_mngr
.rfkill
->user_claim_unsupported
= 1;
98 priv
->rfkill_mngr
.rfkill
->dev
.class->suspend
= NULL
;
99 priv
->rfkill_mngr
.rfkill
->dev
.class->resume
= NULL
;
101 #if defined(CONFIG_RFKILL_INPUT) || defined(CONFIG_RFKILL_INPUT_MODULE)
102 priv
->rfkill_mngr
.input_dev
= input_allocate_device();
103 if (!priv
->rfkill_mngr
.input_dev
) {
104 IWL_ERROR("Unable to allocate rfkill input device.\n");
109 priv
->rfkill_mngr
.input_dev
->name
= priv
->cfg
->name
;
110 priv
->rfkill_mngr
.input_dev
->phys
= wiphy_name(priv
->hw
->wiphy
);
111 priv
->rfkill_mngr
.input_dev
->id
.bustype
= BUS_HOST
;
112 priv
->rfkill_mngr
.input_dev
->id
.vendor
= priv
->pci_dev
->vendor
;
113 priv
->rfkill_mngr
.input_dev
->dev
.parent
= device
;
114 priv
->rfkill_mngr
.input_dev
->evbit
[0] = BIT(EV_KEY
);
115 set_bit(KEY_WLAN
, priv
->rfkill_mngr
.input_dev
->keybit
);
118 ret
= rfkill_register(priv
->rfkill_mngr
.rfkill
);
120 IWL_ERROR("Unable to register rfkill: %d\n", ret
);
124 #if defined(CONFIG_RFKILL_INPUT) || defined(CONFIG_RFKILL_INPUT_MODULE)
125 ret
= input_register_device(priv
->rfkill_mngr
.input_dev
);
127 IWL_ERROR("Unable to register rfkill input device: %d\n", ret
);
128 goto unregister_rfkill
;
132 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
136 rfkill_unregister(priv
->rfkill_mngr
.rfkill
);
137 priv
->rfkill_mngr
.rfkill
= NULL
;
140 #if defined(CONFIG_RFKILL_INPUT) || defined(CONFIG_RFKILL_INPUT_MODULE)
141 input_free_device(priv
->rfkill_mngr
.input_dev
);
142 priv
->rfkill_mngr
.input_dev
= NULL
;
146 if (priv
->rfkill_mngr
.rfkill
!= NULL
)
147 rfkill_free(priv
->rfkill_mngr
.rfkill
);
148 priv
->rfkill_mngr
.rfkill
= NULL
;
151 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
154 EXPORT_SYMBOL(iwl_rfkill_init
);
156 void iwl_rfkill_unregister(struct iwl_priv
*priv
)
159 #if defined(CONFIG_RFKILL_INPUT) || defined(CONFIG_RFKILL_INPUT_MODULE)
160 if (priv
->rfkill_mngr
.input_dev
)
161 input_unregister_device(priv
->rfkill_mngr
.input_dev
);
162 input_free_device(priv
->rfkill_mngr
.input_dev
);
163 priv
->rfkill_mngr
.input_dev
= NULL
;
166 if (priv
->rfkill_mngr
.rfkill
)
167 rfkill_unregister(priv
->rfkill_mngr
.rfkill
);
169 priv
->rfkill_mngr
.rfkill
= NULL
;
171 EXPORT_SYMBOL(iwl_rfkill_unregister
);
173 /* set rf-kill to the right state. */
174 void iwl_rfkill_set_hw_state(struct iwl_priv
*priv
)
177 if (!priv
->rfkill_mngr
.rfkill
)
180 if (!iwl_is_rfkill(priv
))
181 priv
->rfkill_mngr
.rfkill
->state
= RFKILL_STATE_ON
;
183 priv
->rfkill_mngr
.rfkill
->state
= RFKILL_STATE_OFF
;
185 EXPORT_SYMBOL(iwl_rfkill_set_hw_state
);