Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 1 | /* |
Ivo van Doorn | 4e54c71 | 2009-01-17 20:42:32 +0100 | [diff] [blame] | 2 | Copyright (C) 2004 - 2009 rt2x00 SourceForge Project |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 3 | <http://rt2x00.serialmonkey.com> |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the |
| 17 | Free Software Foundation, Inc., |
| 18 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 | */ |
| 20 | |
| 21 | /* |
| 22 | Module: rt2x00lib |
| 23 | Abstract: rt2x00 generic device routines. |
| 24 | */ |
| 25 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 26 | #include <linux/kernel.h> |
| 27 | #include <linux/module.h> |
| 28 | |
| 29 | #include "rt2x00.h" |
| 30 | #include "rt2x00lib.h" |
| 31 | |
| 32 | /* |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 33 | * Radio control handlers. |
| 34 | */ |
| 35 | int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev) |
| 36 | { |
| 37 | int status; |
| 38 | |
| 39 | /* |
| 40 | * Don't enable the radio twice. |
| 41 | * And check if the hardware button has been disabled. |
| 42 | */ |
Ivo van Doorn | 4b9631a | 2009-07-11 18:00:19 +0200 | [diff] [blame] | 43 | if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 44 | return 0; |
| 45 | |
| 46 | /* |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 47 | * Initialize all data queues. |
Ivo van Doorn | 837e7f2 | 2008-01-06 23:41:45 +0100 | [diff] [blame] | 48 | */ |
Ivo van Doorn | 798b7ad | 2008-11-08 15:25:33 +0100 | [diff] [blame] | 49 | rt2x00queue_init_queues(rt2x00dev); |
Ivo van Doorn | 837e7f2 | 2008-01-06 23:41:45 +0100 | [diff] [blame] | 50 | |
| 51 | /* |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 52 | * Enable radio. |
| 53 | */ |
Ivo van Doorn | a2e1d52 | 2008-03-31 15:53:44 +0200 | [diff] [blame] | 54 | status = |
| 55 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_ON); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 56 | if (status) |
| 57 | return status; |
| 58 | |
Ivo van Doorn | 2b08da3 | 2008-06-03 18:58:56 +0200 | [diff] [blame] | 59 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_ON); |
| 60 | |
Ivo van Doorn | a2e1d52 | 2008-03-31 15:53:44 +0200 | [diff] [blame] | 61 | rt2x00leds_led_radio(rt2x00dev, true); |
Ivo van Doorn | 61c2b68 | 2008-04-21 19:01:09 +0200 | [diff] [blame] | 62 | rt2x00led_led_activity(rt2x00dev, true); |
Ivo van Doorn | a2e1d52 | 2008-03-31 15:53:44 +0200 | [diff] [blame] | 63 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 64 | set_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 65 | |
| 66 | /* |
| 67 | * Enable RX. |
| 68 | */ |
Ivo van Doorn | 5cbf830 | 2007-10-06 14:16:09 +0200 | [diff] [blame] | 69 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 70 | |
| 71 | /* |
| 72 | * Start the TX queues. |
| 73 | */ |
Johannes Berg | 36d6825 | 2008-05-15 12:55:26 +0200 | [diff] [blame] | 74 | ieee80211_wake_queues(rt2x00dev->hw); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 75 | |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev) |
| 80 | { |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 81 | if (!test_and_clear_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 82 | return; |
| 83 | |
| 84 | /* |
Ivo van Doorn | a2c9b65 | 2009-01-28 00:32:33 +0100 | [diff] [blame] | 85 | * Stop the TX queues in mac80211. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 86 | */ |
| 87 | ieee80211_stop_queues(rt2x00dev->hw); |
Ivo van Doorn | a2c9b65 | 2009-01-28 00:32:33 +0100 | [diff] [blame] | 88 | rt2x00queue_stop_queues(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 89 | |
| 90 | /* |
| 91 | * Disable RX. |
| 92 | */ |
Ivo van Doorn | 5cbf830 | 2007-10-06 14:16:09 +0200 | [diff] [blame] | 93 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 94 | |
| 95 | /* |
| 96 | * Disable radio. |
| 97 | */ |
| 98 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_OFF); |
Ivo van Doorn | 2b08da3 | 2008-06-03 18:58:56 +0200 | [diff] [blame] | 99 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF); |
Ivo van Doorn | 61c2b68 | 2008-04-21 19:01:09 +0200 | [diff] [blame] | 100 | rt2x00led_led_activity(rt2x00dev, false); |
Ivo van Doorn | a2e1d52 | 2008-03-31 15:53:44 +0200 | [diff] [blame] | 101 | rt2x00leds_led_radio(rt2x00dev, false); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 102 | } |
| 103 | |
Ivo van Doorn | 5cbf830 | 2007-10-06 14:16:09 +0200 | [diff] [blame] | 104 | void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 105 | { |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 106 | /* |
| 107 | * When we are disabling the RX, we should also stop the link tuner. |
| 108 | */ |
Ivo van Doorn | 5cbf830 | 2007-10-06 14:16:09 +0200 | [diff] [blame] | 109 | if (state == STATE_RADIO_RX_OFF) |
Ivo van Doorn | 84e3196 | 2008-12-20 10:53:29 +0100 | [diff] [blame] | 110 | rt2x00link_stop_tuner(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 111 | |
| 112 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, state); |
| 113 | |
| 114 | /* |
| 115 | * When we are enabling the RX, we should also start the link tuner. |
| 116 | */ |
Ivo van Doorn | 84e3196 | 2008-12-20 10:53:29 +0100 | [diff] [blame] | 117 | if (state == STATE_RADIO_RX_ON) |
| 118 | rt2x00link_start_tuner(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 119 | } |
| 120 | |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 121 | static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac, |
| 122 | struct ieee80211_vif *vif) |
Ivo van Doorn | 5c58ee5 | 2007-10-06 13:34:52 +0200 | [diff] [blame] | 123 | { |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 124 | struct rt2x00_dev *rt2x00dev = data; |
| 125 | struct rt2x00_intf *intf = vif_to_intf(vif); |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 126 | int delayed_flags; |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 127 | |
| 128 | /* |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 129 | * Copy all data we need during this action under the protection |
| 130 | * of a spinlock. Otherwise race conditions might occur which results |
| 131 | * into an invalid configuration. |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 132 | */ |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 133 | spin_lock(&intf->lock); |
| 134 | |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 135 | delayed_flags = intf->delayed_flags; |
| 136 | intf->delayed_flags = 0; |
| 137 | |
| 138 | spin_unlock(&intf->lock); |
| 139 | |
Ivo van Doorn | 980dfcb | 2008-06-25 21:27:00 +0200 | [diff] [blame] | 140 | /* |
| 141 | * It is possible the radio was disabled while the work had been |
| 142 | * scheduled. If that happens we should return here immediately, |
| 143 | * note that in the spinlock protected area above the delayed_flags |
| 144 | * have been cleared correctly. |
| 145 | */ |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 146 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
Ivo van Doorn | 980dfcb | 2008-06-25 21:27:00 +0200 | [diff] [blame] | 147 | return; |
| 148 | |
Ivo van Doorn | bd88a78 | 2008-07-09 15:12:44 +0200 | [diff] [blame] | 149 | if (delayed_flags & DELAYED_UPDATE_BEACON) |
Ivo van Doorn | a2c9b65 | 2009-01-28 00:32:33 +0100 | [diff] [blame] | 150 | rt2x00queue_update_beacon(rt2x00dev, vif, true); |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | static void rt2x00lib_intf_scheduled(struct work_struct *work) |
| 154 | { |
| 155 | struct rt2x00_dev *rt2x00dev = |
| 156 | container_of(work, struct rt2x00_dev, intf_work); |
| 157 | |
| 158 | /* |
| 159 | * Iterate over each interface and perform the |
| 160 | * requested configurations. |
| 161 | */ |
| 162 | ieee80211_iterate_active_interfaces(rt2x00dev->hw, |
| 163 | rt2x00lib_intf_scheduled_iter, |
| 164 | rt2x00dev); |
Ivo van Doorn | 5c58ee5 | 2007-10-06 13:34:52 +0200 | [diff] [blame] | 165 | } |
| 166 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 167 | /* |
| 168 | * Interrupt context handlers. |
| 169 | */ |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 170 | static void rt2x00lib_beacondone_iter(void *data, u8 *mac, |
| 171 | struct ieee80211_vif *vif) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 172 | { |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 173 | struct rt2x00_intf *intf = vif_to_intf(vif); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 174 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 175 | if (vif->type != NL80211_IFTYPE_AP && |
Andrey Yurovsky | a07dbea | 2008-12-20 10:55:34 +0100 | [diff] [blame] | 176 | vif->type != NL80211_IFTYPE_ADHOC && |
Ivo van Doorn | ce292a6 | 2008-12-20 10:57:02 +0100 | [diff] [blame] | 177 | vif->type != NL80211_IFTYPE_MESH_POINT && |
| 178 | vif->type != NL80211_IFTYPE_WDS) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 179 | return; |
| 180 | |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 181 | spin_lock(&intf->lock); |
| 182 | intf->delayed_flags |= DELAYED_UPDATE_BEACON; |
| 183 | spin_unlock(&intf->lock); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 184 | } |
| 185 | |
| 186 | void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev) |
| 187 | { |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 188 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 189 | return; |
| 190 | |
Ivo van Doorn | 633257d | 2008-05-23 18:14:02 +0200 | [diff] [blame] | 191 | ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw, |
| 192 | rt2x00lib_beacondone_iter, |
| 193 | rt2x00dev); |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 194 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 195 | ieee80211_queue_work(rt2x00dev->hw, &rt2x00dev->intf_work); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 196 | } |
| 197 | EXPORT_SYMBOL_GPL(rt2x00lib_beacondone); |
| 198 | |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 199 | void rt2x00lib_txdone(struct queue_entry *entry, |
| 200 | struct txdone_entry_desc *txdesc) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 201 | { |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 202 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 203 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 204 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
Ivo van Doorn | d74f5ba | 2008-06-16 19:56:54 +0200 | [diff] [blame] | 205 | enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); |
Ivo van Doorn | 9f16617 | 2009-04-26 16:08:50 +0200 | [diff] [blame] | 206 | unsigned int header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
Benoit PAPILLAULT | 92ed48e | 2009-08-17 18:56:10 +0200 | [diff] [blame] | 207 | u8 rate_idx, rate_flags, retry_rates; |
| 208 | unsigned int i; |
Ivo van Doorn | 2e27cff | 2009-08-29 19:10:14 +0200 | [diff] [blame] | 209 | bool success; |
Ivo van Doorn | d74f5ba | 2008-06-16 19:56:54 +0200 | [diff] [blame] | 210 | |
| 211 | /* |
| 212 | * Unmap the skb. |
| 213 | */ |
| 214 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 215 | |
| 216 | /* |
Ivo van Doorn | 9f16617 | 2009-04-26 16:08:50 +0200 | [diff] [blame] | 217 | * Remove L2 padding which was added during |
| 218 | */ |
| 219 | if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags)) |
Ivo van Doorn | daee6c0 | 2009-08-29 20:30:45 +0200 | [diff] [blame^] | 220 | rt2x00queue_remove_l2pad(entry->skb, header_length); |
Ivo van Doorn | 9f16617 | 2009-04-26 16:08:50 +0200 | [diff] [blame] | 221 | |
| 222 | /* |
Ivo van Doorn | 2bb057d | 2008-08-04 16:37:44 +0200 | [diff] [blame] | 223 | * If the IV/EIV data was stripped from the frame before it was |
| 224 | * passed to the hardware, we should now reinsert it again because |
| 225 | * mac80211 will expect the the same data to be present it the |
| 226 | * frame as it was passed to us. |
| 227 | */ |
| 228 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) |
Ivo van Doorn | 9f16617 | 2009-04-26 16:08:50 +0200 | [diff] [blame] | 229 | rt2x00crypto_tx_insert_iv(entry->skb, header_length); |
Ivo van Doorn | 2bb057d | 2008-08-04 16:37:44 +0200 | [diff] [blame] | 230 | |
| 231 | /* |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 232 | * Send frame to debugfs immediately, after this call is completed |
| 233 | * we are going to overwrite the skb->cb array. |
| 234 | */ |
| 235 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TXDONE, entry->skb); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 236 | |
| 237 | /* |
Ivo van Doorn | 2e27cff | 2009-08-29 19:10:14 +0200 | [diff] [blame] | 238 | * Determine if the frame has been successfully transmitted. |
| 239 | */ |
| 240 | success = |
| 241 | test_bit(TXDONE_SUCCESS, &txdesc->flags) || |
| 242 | test_bit(TXDONE_UNKNOWN, &txdesc->flags) || |
| 243 | test_bit(TXDONE_FALLBACK, &txdesc->flags); |
| 244 | |
| 245 | /* |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 246 | * Update TX statistics. |
| 247 | */ |
Ivo van Doorn | 2e27cff | 2009-08-29 19:10:14 +0200 | [diff] [blame] | 248 | rt2x00dev->link.qual.tx_success += success; |
| 249 | rt2x00dev->link.qual.tx_failed += !success; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 250 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 251 | rate_idx = skbdesc->tx_rate_idx; |
| 252 | rate_flags = skbdesc->tx_rate_flags; |
Benoit PAPILLAULT | 92ed48e | 2009-08-17 18:56:10 +0200 | [diff] [blame] | 253 | retry_rates = test_bit(TXDONE_FALLBACK, &txdesc->flags) ? |
| 254 | (txdesc->retry + 1) : 1; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 255 | |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 256 | /* |
| 257 | * Initialize TX status |
| 258 | */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 259 | memset(&tx_info->status, 0, sizeof(tx_info->status)); |
| 260 | tx_info->status.ack_signal = 0; |
Benoit PAPILLAULT | 92ed48e | 2009-08-17 18:56:10 +0200 | [diff] [blame] | 261 | |
| 262 | /* |
| 263 | * Frame was send with retries, hardware tried |
| 264 | * different rates to send out the frame, at each |
| 265 | * retry it lowered the rate 1 step. |
| 266 | */ |
| 267 | for (i = 0; i < retry_rates && i < IEEE80211_TX_MAX_RATES; i++) { |
| 268 | tx_info->status.rates[i].idx = rate_idx - i; |
| 269 | tx_info->status.rates[i].flags = rate_flags; |
| 270 | tx_info->status.rates[i].count = 1; |
| 271 | } |
Ivo van Doorn | 2e27cff | 2009-08-29 19:10:14 +0200 | [diff] [blame] | 272 | if (i < (IEEE80211_TX_MAX_RATES - 1)) |
Benoit PAPILLAULT | 92ed48e | 2009-08-17 18:56:10 +0200 | [diff] [blame] | 273 | tx_info->status.rates[i].idx = -1; /* terminate */ |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 274 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 275 | if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
Ivo van Doorn | 2e27cff | 2009-08-29 19:10:14 +0200 | [diff] [blame] | 276 | if (success) |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 277 | tx_info->flags |= IEEE80211_TX_STAT_ACK; |
Ivo van Doorn | 2e27cff | 2009-08-29 19:10:14 +0200 | [diff] [blame] | 278 | else |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 279 | rt2x00dev->low_level_stats.dot11ACKFailureCount++; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 280 | } |
| 281 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 282 | if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
Ivo van Doorn | 2e27cff | 2009-08-29 19:10:14 +0200 | [diff] [blame] | 283 | if (success) |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 284 | rt2x00dev->low_level_stats.dot11RTSSuccessCount++; |
Ivo van Doorn | 2e27cff | 2009-08-29 19:10:14 +0200 | [diff] [blame] | 285 | else |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 286 | rt2x00dev->low_level_stats.dot11RTSFailureCount++; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 287 | } |
| 288 | |
| 289 | /* |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 290 | * Only send the status report to mac80211 when TX status was |
| 291 | * requested by it. If this was a extra frame coming through |
| 292 | * a mac80211 library call (RTS/CTS) then we should not send the |
| 293 | * status report back. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 294 | */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 295 | if (tx_info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) |
| 296 | ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb); |
Ivo van Doorn | baf26a7 | 2008-02-17 17:32:08 +0100 | [diff] [blame] | 297 | else |
Ivo van Doorn | fb55f4d | 2008-05-10 13:42:06 +0200 | [diff] [blame] | 298 | dev_kfree_skb_irq(entry->skb); |
Ivo van Doorn | d74f5ba | 2008-06-16 19:56:54 +0200 | [diff] [blame] | 299 | |
| 300 | /* |
| 301 | * Make this entry available for reuse. |
| 302 | */ |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 303 | entry->skb = NULL; |
Ivo van Doorn | d74f5ba | 2008-06-16 19:56:54 +0200 | [diff] [blame] | 304 | entry->flags = 0; |
| 305 | |
Ivo van Doorn | 798b7ad | 2008-11-08 15:25:33 +0100 | [diff] [blame] | 306 | rt2x00dev->ops->lib->clear_entry(entry); |
Ivo van Doorn | d74f5ba | 2008-06-16 19:56:54 +0200 | [diff] [blame] | 307 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 308 | clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); |
Ivo van Doorn | d74f5ba | 2008-06-16 19:56:54 +0200 | [diff] [blame] | 309 | rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE); |
| 310 | |
| 311 | /* |
| 312 | * If the data queue was below the threshold before the txdone |
| 313 | * handler we must make sure the packet queue in the mac80211 stack |
| 314 | * is reenabled when the txdone handler has finished. |
| 315 | */ |
| 316 | if (!rt2x00queue_threshold(entry->queue)) |
| 317 | ieee80211_wake_queue(rt2x00dev->hw, qid); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 318 | } |
| 319 | EXPORT_SYMBOL_GPL(rt2x00lib_txdone); |
| 320 | |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 321 | static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev, |
| 322 | struct rxdone_entry_desc *rxdesc) |
| 323 | { |
| 324 | struct ieee80211_supported_band *sband; |
| 325 | const struct rt2x00_rate *rate; |
| 326 | unsigned int i; |
| 327 | int signal; |
| 328 | int type; |
| 329 | |
| 330 | /* |
| 331 | * For non-HT rates the MCS value needs to contain the |
| 332 | * actually used rate modulation (CCK or OFDM). |
| 333 | */ |
| 334 | if (rxdesc->dev_flags & RXDONE_SIGNAL_MCS) |
| 335 | signal = RATE_MCS(rxdesc->rate_mode, rxdesc->signal); |
| 336 | else |
| 337 | signal = rxdesc->signal; |
| 338 | |
| 339 | type = (rxdesc->dev_flags & RXDONE_SIGNAL_MASK); |
| 340 | |
| 341 | sband = &rt2x00dev->bands[rt2x00dev->curr_band]; |
| 342 | for (i = 0; i < sband->n_bitrates; i++) { |
| 343 | rate = rt2x00_get_rate(sband->bitrates[i].hw_value); |
| 344 | |
| 345 | if (((type == RXDONE_SIGNAL_PLCP) && |
| 346 | (rate->plcp == signal)) || |
| 347 | ((type == RXDONE_SIGNAL_BITRATE) && |
| 348 | (rate->bitrate == signal)) || |
| 349 | ((type == RXDONE_SIGNAL_MCS) && |
| 350 | (rate->mcs == signal))) { |
| 351 | return i; |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | WARNING(rt2x00dev, "Frame received with unrecognized signal, " |
| 356 | "signal=0x%.4x, type=%d.\n", signal, type); |
| 357 | return 0; |
| 358 | } |
| 359 | |
Gertjan van Wingerde | c4da004 | 2008-06-16 19:56:31 +0200 | [diff] [blame] | 360 | void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, |
| 361 | struct queue_entry *entry) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 362 | { |
Gertjan van Wingerde | c4da004 | 2008-06-16 19:56:31 +0200 | [diff] [blame] | 363 | struct rxdone_entry_desc rxdesc; |
| 364 | struct sk_buff *skb; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 365 | struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status; |
Ivo van Doorn | 2bb057d | 2008-08-04 16:37:44 +0200 | [diff] [blame] | 366 | unsigned int header_length; |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 367 | int rate_idx; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 368 | /* |
Gertjan van Wingerde | c4da004 | 2008-06-16 19:56:31 +0200 | [diff] [blame] | 369 | * Allocate a new sk_buffer. If no new buffer available, drop the |
| 370 | * received frame and reuse the existing buffer. |
| 371 | */ |
| 372 | skb = rt2x00queue_alloc_rxskb(rt2x00dev, entry); |
| 373 | if (!skb) |
| 374 | return; |
| 375 | |
| 376 | /* |
| 377 | * Unmap the skb. |
| 378 | */ |
| 379 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); |
| 380 | |
| 381 | /* |
| 382 | * Extract the RXD details. |
| 383 | */ |
| 384 | memset(&rxdesc, 0, sizeof(rxdesc)); |
| 385 | rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 386 | |
Ivo van Doorn | 9f16617 | 2009-04-26 16:08:50 +0200 | [diff] [blame] | 387 | /* Trim buffer to correct size */ |
| 388 | skb_trim(entry->skb, rxdesc.size); |
| 389 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 390 | /* |
Gertjan van Wingerde | 239c249 | 2008-06-06 22:54:12 +0200 | [diff] [blame] | 391 | * The data behind the ieee80211 header must be |
Gertjan van Wingerde | a9f853d | 2008-06-07 16:57:09 +0200 | [diff] [blame] | 392 | * aligned on a 4 byte boundary. |
Gertjan van Wingerde | 239c249 | 2008-06-06 22:54:12 +0200 | [diff] [blame] | 393 | */ |
Ivo van Doorn | 2bb057d | 2008-08-04 16:37:44 +0200 | [diff] [blame] | 394 | header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
Gertjan van Wingerde | 239c249 | 2008-06-06 22:54:12 +0200 | [diff] [blame] | 395 | |
Ivo van Doorn | 2bb057d | 2008-08-04 16:37:44 +0200 | [diff] [blame] | 396 | /* |
| 397 | * Hardware might have stripped the IV/EIV/ICV data, |
| 398 | * in that case it is possible that the data was |
| 399 | * provided seperately (through hardware descriptor) |
| 400 | * in which case we should reinsert the data into the frame. |
| 401 | */ |
Ivo van Doorn | 74415ed | 2008-12-02 22:50:33 +0100 | [diff] [blame] | 402 | if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) && |
Ivo van Doorn | 9f16617 | 2009-04-26 16:08:50 +0200 | [diff] [blame] | 403 | (rxdesc.flags & RX_FLAG_IV_STRIPPED)) |
Ivo van Doorn | daee6c0 | 2009-08-29 20:30:45 +0200 | [diff] [blame^] | 404 | rt2x00crypto_rx_insert_iv(entry->skb, header_length, |
Ivo van Doorn | 9f16617 | 2009-04-26 16:08:50 +0200 | [diff] [blame] | 405 | &rxdesc); |
Ivo van Doorn | daee6c0 | 2009-08-29 20:30:45 +0200 | [diff] [blame^] | 406 | else if (rxdesc.dev_flags & RXDONE_L2PAD) |
| 407 | rt2x00queue_remove_l2pad(entry->skb, header_length); |
Ivo van Doorn | 9f16617 | 2009-04-26 16:08:50 +0200 | [diff] [blame] | 408 | else |
Ivo van Doorn | daee6c0 | 2009-08-29 20:30:45 +0200 | [diff] [blame^] | 409 | rt2x00queue_align_payload(entry->skb, header_length); |
Gertjan van Wingerde | 239c249 | 2008-06-06 22:54:12 +0200 | [diff] [blame] | 410 | |
| 411 | /* |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 412 | * Check if the frame was received using HT. In that case, |
| 413 | * the rate is the MCS index and should be passed to mac80211 |
| 414 | * directly. Otherwise we need to translate the signal to |
| 415 | * the correct bitrate index. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 416 | */ |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 417 | if (rxdesc.rate_mode == RATE_MODE_CCK || |
| 418 | rxdesc.rate_mode == RATE_MODE_OFDM) { |
| 419 | rate_idx = rt2x00lib_rxdone_read_signal(rt2x00dev, &rxdesc); |
| 420 | } else { |
| 421 | rxdesc.flags |= RX_FLAG_HT; |
| 422 | rate_idx = rxdesc.signal; |
Ivo van Doorn | 866a050 | 2008-03-25 14:12:45 +0100 | [diff] [blame] | 423 | } |
| 424 | |
Mattias Nissler | 61af43c | 2007-11-27 21:50:26 +0100 | [diff] [blame] | 425 | /* |
Ivo van Doorn | 84e3196 | 2008-12-20 10:53:29 +0100 | [diff] [blame] | 426 | * Update extra components |
Mattias Nissler | 61af43c | 2007-11-27 21:50:26 +0100 | [diff] [blame] | 427 | */ |
Ivo van Doorn | 84e3196 | 2008-12-20 10:53:29 +0100 | [diff] [blame] | 428 | rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc); |
| 429 | rt2x00debug_update_crypto(rt2x00dev, &rxdesc); |
Ivo van Doorn | 69f81a2 | 2007-10-13 16:26:36 +0200 | [diff] [blame] | 430 | |
Ivo van Doorn | ae73e58 | 2008-07-04 16:14:59 +0200 | [diff] [blame] | 431 | rx_status->mactime = rxdesc.timestamp; |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 432 | rx_status->rate_idx = rate_idx; |
Ivo van Doorn | 84e3196 | 2008-12-20 10:53:29 +0100 | [diff] [blame] | 433 | rx_status->qual = rt2x00link_calculate_signal(rt2x00dev, rxdesc.rssi); |
Gertjan van Wingerde | c4da004 | 2008-06-16 19:56:31 +0200 | [diff] [blame] | 434 | rx_status->signal = rxdesc.rssi; |
Ivo van Doorn | 2bdb35c | 2008-12-20 10:59:29 +0100 | [diff] [blame] | 435 | rx_status->noise = rxdesc.noise; |
Gertjan van Wingerde | c4da004 | 2008-06-16 19:56:31 +0200 | [diff] [blame] | 436 | rx_status->flag = rxdesc.flags; |
Ivo van Doorn | 69f81a2 | 2007-10-13 16:26:36 +0200 | [diff] [blame] | 437 | rx_status->antenna = rt2x00dev->link.ant.active.rx; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 438 | |
| 439 | /* |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 440 | * Send frame to mac80211 & debugfs. |
| 441 | * mac80211 will clean up the skb structure. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 442 | */ |
Ivo van Doorn | 5a6e599 | 2008-05-10 13:41:32 +0200 | [diff] [blame] | 443 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb); |
Johannes Berg | f1d58c2 | 2009-06-17 13:13:00 +0200 | [diff] [blame] | 444 | memcpy(IEEE80211_SKB_RXCB(entry->skb), rx_status, sizeof(*rx_status)); |
| 445 | ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb); |
Gertjan van Wingerde | c4da004 | 2008-06-16 19:56:31 +0200 | [diff] [blame] | 446 | |
| 447 | /* |
| 448 | * Replace the skb with the freshly allocated one. |
| 449 | */ |
| 450 | entry->skb = skb; |
Ivo van Doorn | d74f5ba | 2008-06-16 19:56:54 +0200 | [diff] [blame] | 451 | entry->flags = 0; |
| 452 | |
Ivo van Doorn | 798b7ad | 2008-11-08 15:25:33 +0100 | [diff] [blame] | 453 | rt2x00dev->ops->lib->clear_entry(entry); |
Ivo van Doorn | d74f5ba | 2008-06-16 19:56:54 +0200 | [diff] [blame] | 454 | |
| 455 | rt2x00queue_index_inc(entry->queue, Q_INDEX); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 456 | } |
| 457 | EXPORT_SYMBOL_GPL(rt2x00lib_rxdone); |
| 458 | |
| 459 | /* |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 460 | * Driver initialization handlers. |
| 461 | */ |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 462 | const struct rt2x00_rate rt2x00_supported_rates[12] = { |
| 463 | { |
Ivo van Doorn | 3d8606a | 2008-11-02 00:36:40 +0100 | [diff] [blame] | 464 | .flags = DEV_RATE_CCK, |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 465 | .bitrate = 10, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 466 | .ratemask = BIT(0), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 467 | .plcp = 0x00, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 468 | .mcs = RATE_MCS(RATE_MODE_CCK, 0), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 469 | }, |
| 470 | { |
Ivo van Doorn | 3d8606a | 2008-11-02 00:36:40 +0100 | [diff] [blame] | 471 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 472 | .bitrate = 20, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 473 | .ratemask = BIT(1), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 474 | .plcp = 0x01, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 475 | .mcs = RATE_MCS(RATE_MODE_CCK, 1), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 476 | }, |
| 477 | { |
Ivo van Doorn | 3d8606a | 2008-11-02 00:36:40 +0100 | [diff] [blame] | 478 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 479 | .bitrate = 55, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 480 | .ratemask = BIT(2), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 481 | .plcp = 0x02, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 482 | .mcs = RATE_MCS(RATE_MODE_CCK, 2), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 483 | }, |
| 484 | { |
Ivo van Doorn | 3d8606a | 2008-11-02 00:36:40 +0100 | [diff] [blame] | 485 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 486 | .bitrate = 110, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 487 | .ratemask = BIT(3), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 488 | .plcp = 0x03, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 489 | .mcs = RATE_MCS(RATE_MODE_CCK, 3), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 490 | }, |
| 491 | { |
Ivo van Doorn | 3d8606a | 2008-11-02 00:36:40 +0100 | [diff] [blame] | 492 | .flags = DEV_RATE_OFDM, |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 493 | .bitrate = 60, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 494 | .ratemask = BIT(4), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 495 | .plcp = 0x0b, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 496 | .mcs = RATE_MCS(RATE_MODE_OFDM, 0), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 497 | }, |
| 498 | { |
| 499 | .flags = DEV_RATE_OFDM, |
| 500 | .bitrate = 90, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 501 | .ratemask = BIT(5), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 502 | .plcp = 0x0f, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 503 | .mcs = RATE_MCS(RATE_MODE_OFDM, 1), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 504 | }, |
| 505 | { |
Ivo van Doorn | 3d8606a | 2008-11-02 00:36:40 +0100 | [diff] [blame] | 506 | .flags = DEV_RATE_OFDM, |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 507 | .bitrate = 120, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 508 | .ratemask = BIT(6), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 509 | .plcp = 0x0a, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 510 | .mcs = RATE_MCS(RATE_MODE_OFDM, 2), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 511 | }, |
| 512 | { |
| 513 | .flags = DEV_RATE_OFDM, |
| 514 | .bitrate = 180, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 515 | .ratemask = BIT(7), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 516 | .plcp = 0x0e, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 517 | .mcs = RATE_MCS(RATE_MODE_OFDM, 3), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 518 | }, |
| 519 | { |
Ivo van Doorn | 3d8606a | 2008-11-02 00:36:40 +0100 | [diff] [blame] | 520 | .flags = DEV_RATE_OFDM, |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 521 | .bitrate = 240, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 522 | .ratemask = BIT(8), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 523 | .plcp = 0x09, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 524 | .mcs = RATE_MCS(RATE_MODE_OFDM, 4), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 525 | }, |
| 526 | { |
| 527 | .flags = DEV_RATE_OFDM, |
| 528 | .bitrate = 360, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 529 | .ratemask = BIT(9), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 530 | .plcp = 0x0d, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 531 | .mcs = RATE_MCS(RATE_MODE_OFDM, 5), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 532 | }, |
| 533 | { |
| 534 | .flags = DEV_RATE_OFDM, |
| 535 | .bitrate = 480, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 536 | .ratemask = BIT(10), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 537 | .plcp = 0x08, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 538 | .mcs = RATE_MCS(RATE_MODE_OFDM, 6), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 539 | }, |
| 540 | { |
| 541 | .flags = DEV_RATE_OFDM, |
| 542 | .bitrate = 540, |
Ivo van Doorn | aa77672 | 2008-03-09 22:48:08 +0100 | [diff] [blame] | 543 | .ratemask = BIT(11), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 544 | .plcp = 0x0c, |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 545 | .mcs = RATE_MCS(RATE_MODE_OFDM, 7), |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 546 | }, |
| 547 | }; |
| 548 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 549 | static void rt2x00lib_channel(struct ieee80211_channel *entry, |
| 550 | const int channel, const int tx_power, |
| 551 | const int value) |
| 552 | { |
Ivo van Doorn | f2a3c7f | 2008-02-03 15:52:45 +0100 | [diff] [blame] | 553 | entry->center_freq = ieee80211_channel_to_frequency(channel); |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 554 | entry->hw_value = value; |
| 555 | entry->max_power = tx_power; |
| 556 | entry->max_antenna_gain = 0xff; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 557 | } |
| 558 | |
| 559 | static void rt2x00lib_rate(struct ieee80211_rate *entry, |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 560 | const u16 index, const struct rt2x00_rate *rate) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 561 | { |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 562 | entry->flags = 0; |
| 563 | entry->bitrate = rate->bitrate; |
Ivo van Doorn | 3ea9646 | 2009-01-04 17:33:25 +0100 | [diff] [blame] | 564 | entry->hw_value =index; |
| 565 | entry->hw_value_short = index; |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 566 | |
Ivo van Doorn | 3ea9646 | 2009-01-04 17:33:25 +0100 | [diff] [blame] | 567 | if (rate->flags & DEV_RATE_SHORT_PREAMBLE) |
Ivo van Doorn | 70e2fed | 2008-02-03 15:50:40 +0100 | [diff] [blame] | 568 | entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 569 | } |
| 570 | |
| 571 | static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev, |
| 572 | struct hw_mode_spec *spec) |
| 573 | { |
| 574 | struct ieee80211_hw *hw = rt2x00dev->hw; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 575 | struct ieee80211_channel *channels; |
| 576 | struct ieee80211_rate *rates; |
Ivo van Doorn | 31562e8 | 2008-02-17 17:35:05 +0100 | [diff] [blame] | 577 | unsigned int num_rates; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 578 | unsigned int i; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 579 | |
Ivo van Doorn | 31562e8 | 2008-02-17 17:35:05 +0100 | [diff] [blame] | 580 | num_rates = 0; |
| 581 | if (spec->supported_rates & SUPPORT_RATE_CCK) |
| 582 | num_rates += 4; |
| 583 | if (spec->supported_rates & SUPPORT_RATE_OFDM) |
| 584 | num_rates += 8; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 585 | |
| 586 | channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL); |
| 587 | if (!channels) |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 588 | return -ENOMEM; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 589 | |
Ivo van Doorn | 31562e8 | 2008-02-17 17:35:05 +0100 | [diff] [blame] | 590 | rates = kzalloc(sizeof(*rates) * num_rates, GFP_KERNEL); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 591 | if (!rates) |
| 592 | goto exit_free_channels; |
| 593 | |
| 594 | /* |
| 595 | * Initialize Rate list. |
| 596 | */ |
Ivo van Doorn | 31562e8 | 2008-02-17 17:35:05 +0100 | [diff] [blame] | 597 | for (i = 0; i < num_rates; i++) |
Ivo van Doorn | 8f5fa7f | 2008-02-03 15:54:34 +0100 | [diff] [blame] | 598 | rt2x00lib_rate(&rates[i], i, rt2x00_get_rate(i)); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 599 | |
| 600 | /* |
| 601 | * Initialize Channel list. |
| 602 | */ |
| 603 | for (i = 0; i < spec->num_channels; i++) { |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 604 | rt2x00lib_channel(&channels[i], |
Ivo van Doorn | 8c5e7a5 | 2008-08-04 16:38:47 +0200 | [diff] [blame] | 605 | spec->channels[i].channel, |
| 606 | spec->channels_info[i].tx_power1, i); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 607 | } |
| 608 | |
| 609 | /* |
Ivo van Doorn | 31562e8 | 2008-02-17 17:35:05 +0100 | [diff] [blame] | 610 | * Intitialize 802.11b, 802.11g |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 611 | * Rates: CCK, OFDM. |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 612 | * Channels: 2.4 GHz |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 613 | */ |
Gertjan van Wingerde | 47ac268 | 2008-02-17 17:35:55 +0100 | [diff] [blame] | 614 | if (spec->supported_bands & SUPPORT_BAND_2GHZ) { |
Ivo van Doorn | 31562e8 | 2008-02-17 17:35:05 +0100 | [diff] [blame] | 615 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_channels = 14; |
| 616 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_bitrates = num_rates; |
| 617 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].channels = channels; |
| 618 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates; |
| 619 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| 620 | &rt2x00dev->bands[IEEE80211_BAND_2GHZ]; |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 621 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_2GHZ].ht_cap, |
| 622 | &spec->ht, sizeof(spec->ht)); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 623 | } |
| 624 | |
| 625 | /* |
| 626 | * Intitialize 802.11a |
| 627 | * Rates: OFDM. |
| 628 | * Channels: OFDM, UNII, HiperLAN2. |
| 629 | */ |
Gertjan van Wingerde | 47ac268 | 2008-02-17 17:35:55 +0100 | [diff] [blame] | 630 | if (spec->supported_bands & SUPPORT_BAND_5GHZ) { |
Ivo van Doorn | 31562e8 | 2008-02-17 17:35:05 +0100 | [diff] [blame] | 631 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_channels = |
| 632 | spec->num_channels - 14; |
| 633 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_bitrates = |
| 634 | num_rates - 4; |
| 635 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].channels = &channels[14]; |
| 636 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4]; |
| 637 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
| 638 | &rt2x00dev->bands[IEEE80211_BAND_5GHZ]; |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 639 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_5GHZ].ht_cap, |
| 640 | &spec->ht, sizeof(spec->ht)); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 641 | } |
| 642 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 643 | return 0; |
| 644 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 645 | exit_free_channels: |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 646 | kfree(channels); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 647 | ERROR(rt2x00dev, "Allocation ieee80211 modes failed.\n"); |
| 648 | return -ENOMEM; |
| 649 | } |
| 650 | |
| 651 | static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev) |
| 652 | { |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 653 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 654 | ieee80211_unregister_hw(rt2x00dev->hw); |
| 655 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 656 | if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) { |
| 657 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels); |
| 658 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->bitrates); |
| 659 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; |
| 660 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 661 | } |
Ivo van Doorn | 8c5e7a5 | 2008-08-04 16:38:47 +0200 | [diff] [blame] | 662 | |
| 663 | kfree(rt2x00dev->spec.channels_info); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 664 | } |
| 665 | |
| 666 | static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) |
| 667 | { |
| 668 | struct hw_mode_spec *spec = &rt2x00dev->spec; |
| 669 | int status; |
| 670 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 671 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
| 672 | return 0; |
| 673 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 674 | /* |
| 675 | * Initialize HW modes. |
| 676 | */ |
| 677 | status = rt2x00lib_probe_hw_modes(rt2x00dev, spec); |
| 678 | if (status) |
| 679 | return status; |
| 680 | |
| 681 | /* |
Gertjan van Wingerde | 61448f8 | 2008-05-10 13:43:33 +0200 | [diff] [blame] | 682 | * Initialize HW fields. |
| 683 | */ |
| 684 | rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues; |
| 685 | |
| 686 | /* |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 687 | * Register HW. |
| 688 | */ |
| 689 | status = ieee80211_register_hw(rt2x00dev->hw); |
Herton Ronaldo Krzesinski | f05faa3 | 2009-04-10 18:05:14 -0300 | [diff] [blame] | 690 | if (status) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 691 | return status; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 692 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 693 | set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 694 | |
| 695 | return 0; |
| 696 | } |
| 697 | |
| 698 | /* |
| 699 | * Initialization/uninitialization handlers. |
| 700 | */ |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 701 | static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 702 | { |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 703 | if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 704 | return; |
| 705 | |
| 706 | /* |
Ivo van Doorn | 1682fe6 | 2008-03-13 15:38:03 +0100 | [diff] [blame] | 707 | * Unregister extra components. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 708 | */ |
| 709 | rt2x00rfkill_unregister(rt2x00dev); |
| 710 | |
| 711 | /* |
| 712 | * Allow the HW to uninitialize. |
| 713 | */ |
| 714 | rt2x00dev->ops->lib->uninitialize(rt2x00dev); |
| 715 | |
| 716 | /* |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 717 | * Free allocated queue entries. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 718 | */ |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 719 | rt2x00queue_uninitialize(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 720 | } |
| 721 | |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 722 | static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 723 | { |
| 724 | int status; |
| 725 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 726 | if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 727 | return 0; |
| 728 | |
| 729 | /* |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 730 | * Allocate all queue entries. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 731 | */ |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 732 | status = rt2x00queue_initialize(rt2x00dev); |
| 733 | if (status) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 734 | return status; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 735 | |
| 736 | /* |
| 737 | * Initialize the device. |
| 738 | */ |
| 739 | status = rt2x00dev->ops->lib->initialize(rt2x00dev); |
Ivo van Doorn | ed49998 | 2008-05-05 17:23:47 +0200 | [diff] [blame] | 740 | if (status) { |
| 741 | rt2x00queue_uninitialize(rt2x00dev); |
| 742 | return status; |
| 743 | } |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 744 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 745 | set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 746 | |
| 747 | /* |
Ivo van Doorn | 1682fe6 | 2008-03-13 15:38:03 +0100 | [diff] [blame] | 748 | * Register the extra components. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 749 | */ |
Ivo van Doorn | 1682fe6 | 2008-03-13 15:38:03 +0100 | [diff] [blame] | 750 | rt2x00rfkill_register(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 751 | |
| 752 | return 0; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 753 | } |
| 754 | |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 755 | int rt2x00lib_start(struct rt2x00_dev *rt2x00dev) |
| 756 | { |
| 757 | int retval; |
| 758 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 759 | if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 760 | return 0; |
| 761 | |
| 762 | /* |
| 763 | * If this is the first interface which is added, |
| 764 | * we should load the firmware now. |
| 765 | */ |
Ivo van Doorn | 9404ef3 | 2008-02-03 15:48:38 +0100 | [diff] [blame] | 766 | retval = rt2x00lib_load_firmware(rt2x00dev); |
| 767 | if (retval) |
| 768 | return retval; |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 769 | |
| 770 | /* |
| 771 | * Initialize the device. |
| 772 | */ |
| 773 | retval = rt2x00lib_initialize(rt2x00dev); |
| 774 | if (retval) |
| 775 | return retval; |
| 776 | |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 777 | rt2x00dev->intf_ap_count = 0; |
| 778 | rt2x00dev->intf_sta_count = 0; |
| 779 | rt2x00dev->intf_associated = 0; |
| 780 | |
Ivo van Doorn | bdfa500 | 2009-08-08 23:53:04 +0200 | [diff] [blame] | 781 | /* Enable the radio */ |
| 782 | retval = rt2x00lib_enable_radio(rt2x00dev); |
| 783 | if (retval) { |
| 784 | rt2x00queue_uninitialize(rt2x00dev); |
| 785 | return retval; |
| 786 | } |
| 787 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 788 | set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags); |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 789 | |
| 790 | return 0; |
| 791 | } |
| 792 | |
| 793 | void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev) |
| 794 | { |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 795 | if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 796 | return; |
| 797 | |
| 798 | /* |
| 799 | * Perhaps we can add something smarter here, |
| 800 | * but for now just disabling the radio should do. |
| 801 | */ |
| 802 | rt2x00lib_disable_radio(rt2x00dev); |
| 803 | |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 804 | rt2x00dev->intf_ap_count = 0; |
| 805 | rt2x00dev->intf_sta_count = 0; |
| 806 | rt2x00dev->intf_associated = 0; |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 807 | } |
| 808 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 809 | /* |
| 810 | * driver allocation handlers. |
| 811 | */ |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 812 | int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) |
| 813 | { |
| 814 | int retval = -ENOMEM; |
| 815 | |
Ivo van Doorn | 8ff48a8 | 2008-11-09 23:40:46 +0100 | [diff] [blame] | 816 | mutex_init(&rt2x00dev->csr_mutex); |
| 817 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 818 | /* |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 819 | * Make room for rt2x00_intf inside the per-interface |
| 820 | * structure ieee80211_vif. |
| 821 | */ |
| 822 | rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf); |
| 823 | |
Ivo van Doorn | 3514a44 | 2008-10-29 17:18:46 +0100 | [diff] [blame] | 824 | /* |
| 825 | * Determine which operating modes are supported, all modes |
| 826 | * which require beaconing, depend on the availability of |
| 827 | * beacon entries. |
| 828 | */ |
| 829 | rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); |
| 830 | if (rt2x00dev->ops->bcn->entry_num > 0) |
| 831 | rt2x00dev->hw->wiphy->interface_modes |= |
| 832 | BIT(NL80211_IFTYPE_ADHOC) | |
Andrey Yurovsky | a07dbea | 2008-12-20 10:55:34 +0100 | [diff] [blame] | 833 | BIT(NL80211_IFTYPE_AP) | |
Ivo van Doorn | ce292a6 | 2008-12-20 10:57:02 +0100 | [diff] [blame] | 834 | BIT(NL80211_IFTYPE_MESH_POINT) | |
| 835 | BIT(NL80211_IFTYPE_WDS); |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 836 | |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 837 | /* |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 838 | * Let the driver probe the device to detect the capabilities. |
| 839 | */ |
| 840 | retval = rt2x00dev->ops->lib->probe_hw(rt2x00dev); |
| 841 | if (retval) { |
| 842 | ERROR(rt2x00dev, "Failed to allocate device.\n"); |
| 843 | goto exit; |
| 844 | } |
| 845 | |
| 846 | /* |
| 847 | * Initialize configuration work. |
| 848 | */ |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 849 | INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 850 | |
| 851 | /* |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 852 | * Allocate queue array. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 853 | */ |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 854 | retval = rt2x00queue_allocate(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 855 | if (retval) |
| 856 | goto exit; |
| 857 | |
| 858 | /* |
| 859 | * Initialize ieee80211 structure. |
| 860 | */ |
| 861 | retval = rt2x00lib_probe_hw(rt2x00dev); |
| 862 | if (retval) { |
| 863 | ERROR(rt2x00dev, "Failed to initialize hw.\n"); |
| 864 | goto exit; |
| 865 | } |
| 866 | |
| 867 | /* |
Ivo van Doorn | 1682fe6 | 2008-03-13 15:38:03 +0100 | [diff] [blame] | 868 | * Register extra components. |
Ivo van Doorn | a9450b7 | 2008-02-03 15:53:40 +0100 | [diff] [blame] | 869 | */ |
Ivo van Doorn | 84e3196 | 2008-12-20 10:53:29 +0100 | [diff] [blame] | 870 | rt2x00link_register(rt2x00dev); |
Ivo van Doorn | a9450b7 | 2008-02-03 15:53:40 +0100 | [diff] [blame] | 871 | rt2x00leds_register(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 872 | rt2x00debug_register(rt2x00dev); |
| 873 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 874 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
Ivo van Doorn | 066cb63 | 2007-09-25 20:55:39 +0200 | [diff] [blame] | 875 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 876 | return 0; |
| 877 | |
| 878 | exit: |
| 879 | rt2x00lib_remove_dev(rt2x00dev); |
| 880 | |
| 881 | return retval; |
| 882 | } |
| 883 | EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev); |
| 884 | |
| 885 | void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) |
| 886 | { |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 887 | clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
Ivo van Doorn | 066cb63 | 2007-09-25 20:55:39 +0200 | [diff] [blame] | 888 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 889 | /* |
| 890 | * Disable radio. |
| 891 | */ |
| 892 | rt2x00lib_disable_radio(rt2x00dev); |
| 893 | |
| 894 | /* |
Pavel Roskin | d8cc892 | 2009-08-02 14:30:15 -0400 | [diff] [blame] | 895 | * Stop all work. |
| 896 | */ |
Pavel Roskin | d8cc892 | 2009-08-02 14:30:15 -0400 | [diff] [blame] | 897 | cancel_work_sync(&rt2x00dev->intf_work); |
| 898 | |
| 899 | /* |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 900 | * Uninitialize device. |
| 901 | */ |
| 902 | rt2x00lib_uninitialize(rt2x00dev); |
| 903 | |
| 904 | /* |
Ivo van Doorn | 1682fe6 | 2008-03-13 15:38:03 +0100 | [diff] [blame] | 905 | * Free extra components |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 906 | */ |
| 907 | rt2x00debug_deregister(rt2x00dev); |
Ivo van Doorn | a9450b7 | 2008-02-03 15:53:40 +0100 | [diff] [blame] | 908 | rt2x00leds_unregister(rt2x00dev); |
| 909 | |
| 910 | /* |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 911 | * Free ieee80211_hw memory. |
| 912 | */ |
| 913 | rt2x00lib_remove_hw(rt2x00dev); |
| 914 | |
| 915 | /* |
| 916 | * Free firmware image. |
| 917 | */ |
| 918 | rt2x00lib_free_firmware(rt2x00dev); |
| 919 | |
| 920 | /* |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 921 | * Free queue structures. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 922 | */ |
Ivo van Doorn | 181d690 | 2008-02-05 16:42:23 -0500 | [diff] [blame] | 923 | rt2x00queue_free(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 924 | } |
| 925 | EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev); |
| 926 | |
| 927 | /* |
| 928 | * Device state handlers |
| 929 | */ |
| 930 | #ifdef CONFIG_PM |
| 931 | int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state) |
| 932 | { |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 933 | NOTICE(rt2x00dev, "Going to sleep.\n"); |
Ivo van Doorn | 066cb63 | 2007-09-25 20:55:39 +0200 | [diff] [blame] | 934 | |
| 935 | /* |
Ivo van Doorn | 0712612 | 2009-01-23 17:04:05 +0100 | [diff] [blame] | 936 | * Prevent mac80211 from accessing driver while suspended. |
Ivo van Doorn | 066cb63 | 2007-09-25 20:55:39 +0200 | [diff] [blame] | 937 | */ |
Ivo van Doorn | 0712612 | 2009-01-23 17:04:05 +0100 | [diff] [blame] | 938 | if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags)) |
| 939 | return 0; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 940 | |
| 941 | /* |
Ivo van Doorn | 0712612 | 2009-01-23 17:04:05 +0100 | [diff] [blame] | 942 | * Cleanup as much as possible. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 943 | */ |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 944 | rt2x00lib_uninitialize(rt2x00dev); |
Ivo van Doorn | 1682fe6 | 2008-03-13 15:38:03 +0100 | [diff] [blame] | 945 | |
| 946 | /* |
| 947 | * Suspend/disable extra components. |
| 948 | */ |
Ivo van Doorn | a9450b7 | 2008-02-03 15:53:40 +0100 | [diff] [blame] | 949 | rt2x00leds_suspend(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 950 | rt2x00debug_deregister(rt2x00dev); |
| 951 | |
| 952 | /* |
Ivo van Doorn | 9896322 | 2008-03-27 17:15:24 +0100 | [diff] [blame] | 953 | * Set device mode to sleep for power management, |
| 954 | * on some hardware this call seems to consistently fail. |
| 955 | * From the specifications it is hard to tell why it fails, |
| 956 | * and if this is a "bad thing". |
| 957 | * Overall it is safe to just ignore the failure and |
| 958 | * continue suspending. The only downside is that the |
| 959 | * device will not be in optimal power save mode, but with |
| 960 | * the radio and the other components already disabled the |
| 961 | * device is as good as disabled. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 962 | */ |
Ivo van Doorn | 0712612 | 2009-01-23 17:04:05 +0100 | [diff] [blame] | 963 | if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP)) |
Ivo van Doorn | 9896322 | 2008-03-27 17:15:24 +0100 | [diff] [blame] | 964 | WARNING(rt2x00dev, "Device failed to enter sleep state, " |
| 965 | "continue suspending.\n"); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 966 | |
| 967 | return 0; |
| 968 | } |
| 969 | EXPORT_SYMBOL_GPL(rt2x00lib_suspend); |
| 970 | |
| 971 | int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev) |
| 972 | { |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 973 | NOTICE(rt2x00dev, "Waking up.\n"); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 974 | |
| 975 | /* |
Ivo van Doorn | 1682fe6 | 2008-03-13 15:38:03 +0100 | [diff] [blame] | 976 | * Restore/enable extra components. |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 977 | */ |
| 978 | rt2x00debug_register(rt2x00dev); |
Ivo van Doorn | a9450b7 | 2008-02-03 15:53:40 +0100 | [diff] [blame] | 979 | rt2x00leds_resume(rt2x00dev); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 980 | |
| 981 | /* |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 982 | * We are ready again to receive requests from mac80211. |
| 983 | */ |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 984 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
Ivo van Doorn | e37ea21 | 2008-01-06 23:40:07 +0100 | [diff] [blame] | 985 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 986 | return 0; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 987 | } |
| 988 | EXPORT_SYMBOL_GPL(rt2x00lib_resume); |
| 989 | #endif /* CONFIG_PM */ |
| 990 | |
| 991 | /* |
| 992 | * rt2x00lib module information. |
| 993 | */ |
| 994 | MODULE_AUTHOR(DRV_PROJECT); |
| 995 | MODULE_VERSION(DRV_VERSION); |
| 996 | MODULE_DESCRIPTION("rt2x00 library"); |
| 997 | MODULE_LICENSE("GPL"); |