Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
| 4 | * |
| 5 | * Portions of this file are derived from the ipw3945 project, as well |
| 6 | * as portions of the ieee80211 subsystem header files. |
| 7 | * |
| 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. |
| 11 | * |
| 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 |
| 15 | * more details. |
| 16 | * |
| 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 |
| 20 | * |
| 21 | * The full GNU General Public License is included in this distribution in the |
| 22 | * file called LICENSE. |
| 23 | * |
| 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> |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 30 | #include <linux/init.h> |
| 31 | |
| 32 | #include <net/mac80211.h> |
| 33 | |
| 34 | #include "iwl-eeprom.h" |
Tomas Winkler | 3e0d4cb | 2008-04-24 11:55:38 -0700 | [diff] [blame] | 35 | #include "iwl-dev.h" |
Tomas Winkler | fee1247 | 2008-04-03 16:05:21 -0700 | [diff] [blame] | 36 | #include "iwl-core.h" |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 37 | #include "iwl-helpers.h" |
| 38 | |
| 39 | |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 40 | /* software rf-kill from user */ |
| 41 | static int iwl_rfkill_soft_rf_kill(void *data, enum rfkill_state state) |
| 42 | { |
| 43 | struct iwl_priv *priv = data; |
| 44 | int err = 0; |
| 45 | |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 46 | if (!priv->rfkill) |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 47 | return 0; |
| 48 | |
Mohamed Abbas | 5900383 | 2008-04-15 16:01:46 -0700 | [diff] [blame] | 49 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 50 | return 0; |
| 51 | |
John W. Linville | edd4b53 | 2008-06-27 13:04:25 -0400 | [diff] [blame] | 52 | IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state); |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 53 | mutex_lock(&priv->mutex); |
| 54 | |
| 55 | switch (state) { |
John W. Linville | ff28bd9 | 2008-06-27 10:27:47 -0400 | [diff] [blame] | 56 | case RFKILL_STATE_UNBLOCKED: |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 57 | if (iwl_is_rfkill_hw(priv)) { |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 58 | err = -EBUSY; |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 59 | goto out_unlock; |
| 60 | } |
| 61 | iwl_radio_kill_sw_enable_radio(priv); |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 62 | break; |
John W. Linville | ff28bd9 | 2008-06-27 10:27:47 -0400 | [diff] [blame] | 63 | case RFKILL_STATE_SOFT_BLOCKED: |
Emmanuel Grumbach | 14a08a7 | 2008-06-13 15:44:55 +0800 | [diff] [blame] | 64 | iwl_radio_kill_sw_disable_radio(priv); |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 65 | break; |
John W. Linville | ff28bd9 | 2008-06-27 10:27:47 -0400 | [diff] [blame] | 66 | default: |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 67 | IWL_WARNING("we received unexpected RFKILL state %d\n", state); |
John W. Linville | ff28bd9 | 2008-06-27 10:27:47 -0400 | [diff] [blame] | 68 | break; |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 69 | } |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 70 | out_unlock: |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 71 | mutex_unlock(&priv->mutex); |
| 72 | |
| 73 | return err; |
| 74 | } |
| 75 | |
| 76 | int iwl_rfkill_init(struct iwl_priv *priv) |
| 77 | { |
| 78 | struct device *device = wiphy_dev(priv->hw->wiphy); |
| 79 | int ret = 0; |
| 80 | |
| 81 | BUG_ON(device == NULL); |
| 82 | |
Mohamed Abbas | 03d29c6 | 2008-04-03 16:05:24 -0700 | [diff] [blame] | 83 | IWL_DEBUG_RF_KILL("Initializing RFKILL.\n"); |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 84 | priv->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN); |
| 85 | if (!priv->rfkill) { |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 86 | IWL_ERROR("Unable to allocate RFKILL device.\n"); |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 87 | ret = -ENOMEM; |
| 88 | goto error; |
| 89 | } |
| 90 | |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 91 | priv->rfkill->name = priv->cfg->name; |
| 92 | priv->rfkill->data = priv; |
| 93 | priv->rfkill->state = RFKILL_STATE_UNBLOCKED; |
| 94 | priv->rfkill->toggle_radio = iwl_rfkill_soft_rf_kill; |
| 95 | priv->rfkill->user_claim_unsupported = 1; |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 96 | |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 97 | priv->rfkill->dev.class->suspend = NULL; |
| 98 | priv->rfkill->dev.class->resume = NULL; |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 99 | |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 100 | ret = rfkill_register(priv->rfkill); |
Mohamed Abbas | 03d29c6 | 2008-04-03 16:05:24 -0700 | [diff] [blame] | 101 | if (ret) { |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 102 | IWL_ERROR("Unable to register RFKILL: %d\n", ret); |
Tomas Winkler | 8fa7425 | 2008-07-01 10:44:48 +0300 | [diff] [blame] | 103 | goto free_rfkill; |
Mohamed Abbas | 03d29c6 | 2008-04-03 16:05:24 -0700 | [diff] [blame] | 104 | } |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 105 | |
Mohamed Abbas | 03d29c6 | 2008-04-03 16:05:24 -0700 | [diff] [blame] | 106 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 107 | return ret; |
| 108 | |
Tomas Winkler | 8fa7425 | 2008-07-01 10:44:48 +0300 | [diff] [blame] | 109 | free_rfkill: |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 110 | if (priv->rfkill != NULL) |
| 111 | rfkill_free(priv->rfkill); |
| 112 | priv->rfkill = NULL; |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 113 | |
| 114 | error: |
Mohamed Abbas | 03d29c6 | 2008-04-03 16:05:24 -0700 | [diff] [blame] | 115 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 116 | return ret; |
| 117 | } |
| 118 | EXPORT_SYMBOL(iwl_rfkill_init); |
| 119 | |
| 120 | void iwl_rfkill_unregister(struct iwl_priv *priv) |
| 121 | { |
| 122 | |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 123 | if (priv->rfkill) |
| 124 | rfkill_unregister(priv->rfkill); |
Mohamed Abbas | 03d29c6 | 2008-04-03 16:05:24 -0700 | [diff] [blame] | 125 | |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 126 | priv->rfkill = NULL; |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 127 | } |
| 128 | EXPORT_SYMBOL(iwl_rfkill_unregister); |
| 129 | |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 130 | /* set RFKILL to the right state. */ |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 131 | void iwl_rfkill_set_hw_state(struct iwl_priv *priv) |
| 132 | { |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 133 | if (!priv->rfkill) |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 134 | return; |
| 135 | |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 136 | if (iwl_is_rfkill_hw(priv)) { |
| 137 | rfkill_force_state(priv->rfkill, RFKILL_STATE_HARD_BLOCKED); |
| 138 | return; |
| 139 | } |
| 140 | |
| 141 | if (!iwl_is_rfkill_sw(priv)) |
| 142 | rfkill_force_state(priv->rfkill, RFKILL_STATE_UNBLOCKED); |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 143 | else |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 144 | rfkill_force_state(priv->rfkill, RFKILL_STATE_SOFT_BLOCKED); |
Mohamed Abbas | ad97edd | 2008-03-28 16:21:06 -0700 | [diff] [blame] | 145 | } |
| 146 | EXPORT_SYMBOL(iwl_rfkill_set_hw_state); |