Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Reinette Chatre | 01f8162 | 2009-01-08 10:20:02 -0800 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 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: |
Winkler, Tomas | 759ef89 | 2008-12-09 11:28:58 -0800 | [diff] [blame] | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | * |
| 28 | *****************************************************************************/ |
| 29 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 30 | #include <linux/kernel.h> |
| 31 | #include <linux/module.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 32 | #include <linux/init.h> |
| 33 | #include <linux/pci.h> |
| 34 | #include <linux/dma-mapping.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/skbuff.h> |
| 37 | #include <linux/netdevice.h> |
| 38 | #include <linux/wireless.h> |
| 39 | #include <linux/firmware.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 40 | #include <linux/etherdevice.h> |
| 41 | #include <linux/if_arp.h> |
| 42 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 43 | #include <net/mac80211.h> |
| 44 | |
| 45 | #include <asm/div64.h> |
| 46 | |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 47 | #define DRV_NAME "iwlagn" |
| 48 | |
Assaf Krauss | 6bc913b | 2008-03-11 16:17:18 -0700 | [diff] [blame] | 49 | #include "iwl-eeprom.h" |
Tomas Winkler | 3e0d4cb | 2008-04-24 11:55:38 -0700 | [diff] [blame] | 50 | #include "iwl-dev.h" |
Tomas Winkler | fee1247 | 2008-04-03 16:05:21 -0700 | [diff] [blame] | 51 | #include "iwl-core.h" |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 52 | #include "iwl-io.h" |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 53 | #include "iwl-helpers.h" |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 54 | #include "iwl-sta.h" |
Emmanuel Grumbach | f0832f1 | 2008-04-16 16:34:47 -0700 | [diff] [blame] | 55 | #include "iwl-calib.h" |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 56 | |
Christoph Hellwig | 416e143 | 2007-10-25 17:15:49 +0800 | [diff] [blame] | 57 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 58 | /****************************************************************************** |
| 59 | * |
| 60 | * module boiler plate |
| 61 | * |
| 62 | ******************************************************************************/ |
| 63 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 64 | /* |
| 65 | * module name, copyright, version, etc. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 66 | */ |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 67 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 68 | |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 69 | #ifdef CONFIG_IWLWIFI_DEBUG |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 70 | #define VD "d" |
| 71 | #else |
| 72 | #define VD |
| 73 | #endif |
| 74 | |
Reinette Chatre | 80bc539 | 2009-02-13 11:51:19 -0800 | [diff] [blame] | 75 | #ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 76 | #define VS "s" |
| 77 | #else |
| 78 | #define VS |
| 79 | #endif |
| 80 | |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 81 | #define DRV_VERSION IWLWIFI_VERSION VD VS |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 82 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 83 | |
| 84 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| 85 | MODULE_VERSION(DRV_VERSION); |
Tomas Winkler | a7b7520 | 2008-12-11 10:33:41 -0800 | [diff] [blame] | 86 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 87 | MODULE_LICENSE("GPL"); |
Tomas Winkler | 4fc22b2 | 2008-07-21 18:54:42 +0300 | [diff] [blame] | 88 | MODULE_ALIAS("iwl4965"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 89 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 90 | /*************** STATION TABLE MANAGEMENT **** |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 91 | * mac80211 should be examined to determine if sta_info is duplicating |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 92 | * the functionality provided here |
| 93 | */ |
| 94 | |
| 95 | /**************************************************************/ |
| 96 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 97 | /** |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 98 | * iwl_commit_rxon - commit staging_rxon to hardware |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 99 | * |
Ian Schram | 01ebd06 | 2007-10-25 17:15:22 +0800 | [diff] [blame] | 100 | * The RXON command in staging_rxon is committed to the hardware and |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 101 | * the active_rxon structure is updated with the new data. This |
| 102 | * function correctly transitions out of the RXON_ASSOC_MSK state if |
| 103 | * a HW tune is required based on the RXON structure changes. |
| 104 | */ |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 105 | int iwl_commit_rxon(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 106 | { |
| 107 | /* cast away the const for active_rxon in this function */ |
Gregory Greenman | c1adf9f | 2008-05-15 13:53:59 +0800 | [diff] [blame] | 108 | struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 109 | int ret; |
| 110 | bool new_assoc = |
| 111 | !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 112 | |
Tomas Winkler | fee1247 | 2008-04-03 16:05:21 -0700 | [diff] [blame] | 113 | if (!iwl_is_alive(priv)) |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 114 | return -EBUSY; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 115 | |
| 116 | /* always get timestamp with Rx frame */ |
| 117 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; |
Emmanuel Grumbach | a326a5d | 2008-07-11 11:53:31 +0800 | [diff] [blame] | 118 | /* allow CTS-to-self if possible. this is relevant only for |
| 119 | * 5000, but will not damage 4965 */ |
| 120 | priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 121 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 122 | ret = iwl_check_rxon_cmd(priv); |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 123 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 124 | IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 125 | return -EINVAL; |
| 126 | } |
| 127 | |
| 128 | /* If we don't need to send a full RXON, we can use |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 129 | * iwl_rxon_assoc_cmd which is used to reconfigure filter |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 130 | * and other flags for the current radio configuration. */ |
Mohamed Abbas | 5455970 | 2008-09-03 11:18:44 +0800 | [diff] [blame] | 131 | if (!iwl_full_rxon_required(priv)) { |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 132 | ret = iwl_send_rxon_assoc(priv); |
| 133 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 134 | IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret); |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 135 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 136 | } |
| 137 | |
| 138 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 139 | return 0; |
| 140 | } |
| 141 | |
| 142 | /* station table will be cleared */ |
| 143 | priv->assoc_station_added = 0; |
| 144 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 145 | /* If we are currently associated and the new config requires |
| 146 | * an RXON_ASSOC and the new config wants the associated mask enabled, |
| 147 | * we must clear the associated from the active configuration |
| 148 | * before we apply the new config */ |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 149 | if (iwl_is_associated(priv) && new_assoc) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 150 | IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 151 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 152 | |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 153 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, |
Gregory Greenman | c1adf9f | 2008-05-15 13:53:59 +0800 | [diff] [blame] | 154 | sizeof(struct iwl_rxon_cmd), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 155 | &priv->active_rxon); |
| 156 | |
| 157 | /* If the mask clearing failed then we set |
| 158 | * active_rxon back to what it was previously */ |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 159 | if (ret) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 160 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 161 | IWL_ERR(priv, "Error clearing ASSOC_MSK (%d)\n", ret); |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 162 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 163 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 164 | } |
| 165 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 166 | IWL_DEBUG_INFO(priv, "Sending RXON\n" |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 167 | "* with%s RXON_FILTER_ASSOC_MSK\n" |
| 168 | "* channel = %d\n" |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 169 | "* bssid = %pM\n", |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 170 | (new_assoc ? "" : "out"), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 171 | le16_to_cpu(priv->staging_rxon.channel), |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 172 | priv->staging_rxon.bssid_addr); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 173 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 174 | iwl_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto); |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 175 | |
| 176 | /* Apply the new configuration |
| 177 | * RXON unassoc clears the station table in uCode, send it before |
| 178 | * we add the bcast station. If assoc bit is set, we will send RXON |
| 179 | * after having added the bcast and bssid station. |
| 180 | */ |
| 181 | if (!new_assoc) { |
| 182 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, |
Gregory Greenman | c1adf9f | 2008-05-15 13:53:59 +0800 | [diff] [blame] | 183 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 184 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 185 | IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 186 | return ret; |
| 187 | } |
| 188 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 189 | } |
| 190 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 191 | iwl_clear_stations_table(priv); |
Zhu Yi | 556f8db | 2007-09-27 11:27:33 +0800 | [diff] [blame] | 192 | |
Johannes Berg | 19cc108 | 2009-05-08 13:44:36 -0700 | [diff] [blame] | 193 | priv->start_calib = 0; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 194 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 195 | /* Add the broadcast address so we can send broadcast frames */ |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 196 | if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) == |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 197 | IWL_INVALID_STATION) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 198 | IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 199 | return -EIO; |
| 200 | } |
| 201 | |
| 202 | /* If we have set the ASSOC_MSK and we are in BSS mode then |
| 203 | * add the IWL_AP_ID to the station rate table */ |
Tomas Winkler | 9185159 | 2008-06-30 17:23:14 +0800 | [diff] [blame] | 204 | if (new_assoc) { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 205 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
Tomas Winkler | 9185159 | 2008-06-30 17:23:14 +0800 | [diff] [blame] | 206 | ret = iwl_rxon_add_station(priv, |
| 207 | priv->active_rxon.bssid_addr, 1); |
| 208 | if (ret == IWL_INVALID_STATION) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 209 | IWL_ERR(priv, |
| 210 | "Error adding AP address for TX.\n"); |
Tomas Winkler | 9185159 | 2008-06-30 17:23:14 +0800 | [diff] [blame] | 211 | return -EIO; |
| 212 | } |
| 213 | priv->assoc_station_added = 1; |
| 214 | if (priv->default_wep_key && |
| 215 | iwl_send_static_wepkey_cmd(priv, 0)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 216 | IWL_ERR(priv, |
| 217 | "Could not send WEP static key.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 218 | } |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 219 | |
| 220 | /* Apply the new configuration |
| 221 | * RXON assoc doesn't clear the station table in uCode, |
| 222 | */ |
| 223 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, |
| 224 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); |
| 225 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 226 | IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); |
Emmanuel Grumbach | 43d59b3 | 2008-06-30 17:23:06 +0800 | [diff] [blame] | 227 | return ret; |
| 228 | } |
| 229 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 230 | } |
| 231 | |
Zhu Yi | 36da7d7 | 2008-07-11 11:53:40 +0800 | [diff] [blame] | 232 | iwl_init_sensitivity(priv); |
| 233 | |
| 234 | /* If we issue a new RXON command which required a tune then we must |
| 235 | * send a new TXPOWER command or we won't be able to Tx any frames */ |
| 236 | ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true); |
| 237 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 238 | IWL_ERR(priv, "Error sending TX power (%d)\n", ret); |
Zhu Yi | 36da7d7 | 2008-07-11 11:53:40 +0800 | [diff] [blame] | 239 | return ret; |
| 240 | } |
| 241 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 242 | return 0; |
| 243 | } |
| 244 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 245 | void iwl_update_chain_flags(struct iwl_priv *priv) |
Mohamed Abbas | 5da4b55f | 2008-04-21 15:41:51 -0700 | [diff] [blame] | 246 | { |
| 247 | |
Abhijeet Kolekar | 4582353 | 2009-04-08 11:26:44 -0700 | [diff] [blame] | 248 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
| 249 | priv->cfg->ops->hcmd->set_rxon_chain(priv); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 250 | iwlcore_commit_rxon(priv); |
Mohamed Abbas | 5da4b55f | 2008-04-21 15:41:51 -0700 | [diff] [blame] | 251 | } |
| 252 | |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 253 | static void iwl_clear_free_frames(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 254 | { |
| 255 | struct list_head *element; |
| 256 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 257 | IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 258 | priv->frames_count); |
| 259 | |
| 260 | while (!list_empty(&priv->free_frames)) { |
| 261 | element = priv->free_frames.next; |
| 262 | list_del(element); |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 263 | kfree(list_entry(element, struct iwl_frame, list)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 264 | priv->frames_count--; |
| 265 | } |
| 266 | |
| 267 | if (priv->frames_count) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 268 | IWL_WARN(priv, "%d frames still in use. Did we lose one?\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 269 | priv->frames_count); |
| 270 | priv->frames_count = 0; |
| 271 | } |
| 272 | } |
| 273 | |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 274 | static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 275 | { |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 276 | struct iwl_frame *frame; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 277 | struct list_head *element; |
| 278 | if (list_empty(&priv->free_frames)) { |
| 279 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); |
| 280 | if (!frame) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 281 | IWL_ERR(priv, "Could not allocate frame!\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 282 | return NULL; |
| 283 | } |
| 284 | |
| 285 | priv->frames_count++; |
| 286 | return frame; |
| 287 | } |
| 288 | |
| 289 | element = priv->free_frames.next; |
| 290 | list_del(element); |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 291 | return list_entry(element, struct iwl_frame, list); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 292 | } |
| 293 | |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 294 | static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 295 | { |
| 296 | memset(frame, 0, sizeof(*frame)); |
| 297 | list_add(&frame->list, &priv->free_frames); |
| 298 | } |
| 299 | |
Tomas Winkler | 4bf64ef | 2008-07-18 13:53:03 +0800 | [diff] [blame] | 300 | static unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv, |
| 301 | struct ieee80211_hdr *hdr, |
Rami Rosen | 73ec1cc | 2008-12-16 09:37:07 +0200 | [diff] [blame] | 302 | int left) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 303 | { |
Tomas Winkler | 3109ece | 2008-03-28 16:33:35 -0700 | [diff] [blame] | 304 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 305 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
| 306 | (priv->iw_mode != NL80211_IFTYPE_AP))) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 307 | return 0; |
| 308 | |
| 309 | if (priv->ibss_beacon->len > left) |
| 310 | return 0; |
| 311 | |
| 312 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); |
| 313 | |
| 314 | return priv->ibss_beacon->len; |
| 315 | } |
| 316 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 317 | static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv, |
Tomas Winkler | 4bf64ef | 2008-07-18 13:53:03 +0800 | [diff] [blame] | 318 | struct iwl_frame *frame, u8 rate) |
| 319 | { |
| 320 | struct iwl_tx_beacon_cmd *tx_beacon_cmd; |
| 321 | unsigned int frame_size; |
| 322 | |
| 323 | tx_beacon_cmd = &frame->u.beacon; |
| 324 | memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); |
| 325 | |
| 326 | tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id; |
| 327 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| 328 | |
| 329 | frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame, |
Tomas Winkler | 4bf64ef | 2008-07-18 13:53:03 +0800 | [diff] [blame] | 330 | sizeof(frame->u) - sizeof(*tx_beacon_cmd)); |
| 331 | |
| 332 | BUG_ON(frame_size > MAX_MPDU_SIZE); |
| 333 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); |
| 334 | |
| 335 | if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP)) |
| 336 | tx_beacon_cmd->tx.rate_n_flags = |
| 337 | iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK); |
| 338 | else |
| 339 | tx_beacon_cmd->tx.rate_n_flags = |
| 340 | iwl_hw_set_rate_n_flags(rate, 0); |
| 341 | |
| 342 | tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | |
| 343 | TX_CMD_FLG_TSF_MSK | |
| 344 | TX_CMD_FLG_STA_RATE_MSK; |
| 345 | |
| 346 | return sizeof(*tx_beacon_cmd) + frame_size; |
| 347 | } |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 348 | static int iwl_send_beacon_cmd(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 349 | { |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 350 | struct iwl_frame *frame; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 351 | unsigned int frame_size; |
| 352 | int rc; |
| 353 | u8 rate; |
| 354 | |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 355 | frame = iwl_get_free_frame(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 356 | |
| 357 | if (!frame) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 358 | IWL_ERR(priv, "Could not obtain free frame buffer for beacon " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 359 | "command.\n"); |
| 360 | return -ENOMEM; |
| 361 | } |
| 362 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 363 | rate = iwl_rate_get_lowest_plcp(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 364 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 365 | frame_size = iwl_hw_get_beacon_cmd(priv, frame, rate); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 366 | |
Tomas Winkler | 857485c | 2008-03-21 13:53:44 -0700 | [diff] [blame] | 367 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 368 | &frame->u.cmd[0]); |
| 369 | |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 370 | iwl_free_frame(priv, frame); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 371 | |
| 372 | return rc; |
| 373 | } |
| 374 | |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 375 | static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx) |
| 376 | { |
| 377 | struct iwl_tfd_tb *tb = &tfd->tbs[idx]; |
| 378 | |
| 379 | dma_addr_t addr = get_unaligned_le32(&tb->lo); |
| 380 | if (sizeof(dma_addr_t) > sizeof(u32)) |
| 381 | addr |= |
| 382 | ((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16; |
| 383 | |
| 384 | return addr; |
| 385 | } |
| 386 | |
| 387 | static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx) |
| 388 | { |
| 389 | struct iwl_tfd_tb *tb = &tfd->tbs[idx]; |
| 390 | |
| 391 | return le16_to_cpu(tb->hi_n_len) >> 4; |
| 392 | } |
| 393 | |
| 394 | static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx, |
| 395 | dma_addr_t addr, u16 len) |
| 396 | { |
| 397 | struct iwl_tfd_tb *tb = &tfd->tbs[idx]; |
| 398 | u16 hi_n_len = len << 4; |
| 399 | |
| 400 | put_unaligned_le32(addr, &tb->lo); |
| 401 | if (sizeof(dma_addr_t) > sizeof(u32)) |
| 402 | hi_n_len |= ((addr >> 16) >> 16) & 0xF; |
| 403 | |
| 404 | tb->hi_n_len = cpu_to_le16(hi_n_len); |
| 405 | |
| 406 | tfd->num_tbs = idx + 1; |
| 407 | } |
| 408 | |
| 409 | static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd) |
| 410 | { |
| 411 | return tfd->num_tbs & 0x1f; |
| 412 | } |
| 413 | |
| 414 | /** |
| 415 | * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr] |
| 416 | * @priv - driver private data |
| 417 | * @txq - tx queue |
| 418 | * |
| 419 | * Does NOT advance any TFD circular buffer read/write indexes |
| 420 | * Does NOT free the TFD itself (which is within circular buffer) |
| 421 | */ |
| 422 | void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) |
| 423 | { |
Samuel Ortiz | 59606ff | 2009-01-23 13:45:13 -0800 | [diff] [blame] | 424 | struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)txq->tfds; |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 425 | struct iwl_tfd *tfd; |
| 426 | struct pci_dev *dev = priv->pci_dev; |
| 427 | int index = txq->q.read_ptr; |
| 428 | int i; |
| 429 | int num_tbs; |
| 430 | |
| 431 | tfd = &tfd_tmp[index]; |
| 432 | |
| 433 | /* Sanity check on number of chunks */ |
| 434 | num_tbs = iwl_tfd_get_num_tbs(tfd); |
| 435 | |
| 436 | if (num_tbs >= IWL_NUM_OF_TBS) { |
| 437 | IWL_ERR(priv, "Too many chunks: %i\n", num_tbs); |
| 438 | /* @todo issue fatal error, it is quite serious situation */ |
| 439 | return; |
| 440 | } |
| 441 | |
| 442 | /* Unmap tx_cmd */ |
| 443 | if (num_tbs) |
| 444 | pci_unmap_single(dev, |
| 445 | pci_unmap_addr(&txq->cmd[index]->meta, mapping), |
| 446 | pci_unmap_len(&txq->cmd[index]->meta, len), |
Fenghua Yu | 96891ce | 2009-02-18 15:54:33 -0800 | [diff] [blame] | 447 | PCI_DMA_BIDIRECTIONAL); |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 448 | |
| 449 | /* Unmap chunks, if any. */ |
| 450 | for (i = 1; i < num_tbs; i++) { |
| 451 | pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i), |
| 452 | iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE); |
| 453 | |
| 454 | if (txq->txb) { |
| 455 | dev_kfree_skb(txq->txb[txq->q.read_ptr].skb[i - 1]); |
| 456 | txq->txb[txq->q.read_ptr].skb[i - 1] = NULL; |
| 457 | } |
| 458 | } |
| 459 | } |
| 460 | |
| 461 | int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, |
| 462 | struct iwl_tx_queue *txq, |
| 463 | dma_addr_t addr, u16 len, |
| 464 | u8 reset, u8 pad) |
| 465 | { |
| 466 | struct iwl_queue *q; |
Samuel Ortiz | 59606ff | 2009-01-23 13:45:13 -0800 | [diff] [blame] | 467 | struct iwl_tfd *tfd, *tfd_tmp; |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 468 | u32 num_tbs; |
| 469 | |
| 470 | q = &txq->q; |
Samuel Ortiz | 59606ff | 2009-01-23 13:45:13 -0800 | [diff] [blame] | 471 | tfd_tmp = (struct iwl_tfd *)txq->tfds; |
| 472 | tfd = &tfd_tmp[q->write_ptr]; |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 473 | |
| 474 | if (reset) |
| 475 | memset(tfd, 0, sizeof(*tfd)); |
| 476 | |
| 477 | num_tbs = iwl_tfd_get_num_tbs(tfd); |
| 478 | |
| 479 | /* Each TFD can point to a maximum 20 Tx buffers */ |
| 480 | if (num_tbs >= IWL_NUM_OF_TBS) { |
| 481 | IWL_ERR(priv, "Error can not send more than %d chunks\n", |
| 482 | IWL_NUM_OF_TBS); |
| 483 | return -EINVAL; |
| 484 | } |
| 485 | |
| 486 | BUG_ON(addr & ~DMA_BIT_MASK(36)); |
| 487 | if (unlikely(addr & ~IWL_TX_DMA_MASK)) |
| 488 | IWL_ERR(priv, "Unaligned address = %llx\n", |
| 489 | (unsigned long long)addr); |
| 490 | |
| 491 | iwl_tfd_set_tb(tfd, num_tbs, addr, len); |
| 492 | |
| 493 | return 0; |
| 494 | } |
| 495 | |
Samuel Ortiz | a8e74e2 | 2009-01-23 13:45:14 -0800 | [diff] [blame] | 496 | /* |
| 497 | * Tell nic where to find circular buffer of Tx Frame Descriptors for |
| 498 | * given Tx queue, and enable the DMA channel used for that queue. |
| 499 | * |
| 500 | * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA |
| 501 | * channels supported in hardware. |
| 502 | */ |
| 503 | int iwl_hw_tx_queue_init(struct iwl_priv *priv, |
| 504 | struct iwl_tx_queue *txq) |
| 505 | { |
Samuel Ortiz | a8e74e2 | 2009-01-23 13:45:14 -0800 | [diff] [blame] | 506 | int txq_id = txq->q.id; |
| 507 | |
Samuel Ortiz | a8e74e2 | 2009-01-23 13:45:14 -0800 | [diff] [blame] | 508 | /* Circular buffer (TFD queue in DRAM) physical base address */ |
| 509 | iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id), |
| 510 | txq->q.dma_addr >> 8); |
| 511 | |
Samuel Ortiz | a8e74e2 | 2009-01-23 13:45:14 -0800 | [diff] [blame] | 512 | return 0; |
| 513 | } |
| 514 | |
| 515 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 516 | /****************************************************************************** |
| 517 | * |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 518 | * Misc. internal state and helper functions |
| 519 | * |
| 520 | ******************************************************************************/ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 521 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 522 | #define MAX_UCODE_BEACON_INTERVAL 4096 |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 523 | |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 524 | static u16 iwl_adjust_beacon_interval(u16 beacon_val) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 525 | { |
| 526 | u16 new_val = 0; |
| 527 | u16 beacon_factor = 0; |
| 528 | |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 529 | beacon_factor = (beacon_val + MAX_UCODE_BEACON_INTERVAL) |
| 530 | / MAX_UCODE_BEACON_INTERVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 531 | new_val = beacon_val / beacon_factor; |
| 532 | |
John W. Linville | 41d2f29 | 2009-02-20 19:03:31 -0500 | [diff] [blame] | 533 | if (!new_val) |
| 534 | new_val = MAX_UCODE_BEACON_INTERVAL; |
| 535 | |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 536 | return new_val; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 537 | } |
| 538 | |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 539 | static void iwl_setup_rxon_timing(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 540 | { |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 541 | u64 tsf; |
| 542 | s32 interval_tm, rem; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 543 | unsigned long flags; |
| 544 | struct ieee80211_conf *conf = NULL; |
| 545 | u16 beacon_int = 0; |
| 546 | |
| 547 | conf = ieee80211_get_hw_conf(priv->hw); |
| 548 | |
| 549 | spin_lock_irqsave(&priv->lock, flags); |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 550 | priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp); |
Tomas Winkler | b5d7be5 | 2008-07-19 04:41:24 +0300 | [diff] [blame] | 551 | priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 552 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 553 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 554 | beacon_int = iwl_adjust_beacon_interval(priv->beacon_int); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 555 | priv->rxon_timing.atim_window = 0; |
| 556 | } else { |
Johannes Berg | 57c4d7b | 2009-04-23 16:10:04 +0200 | [diff] [blame] | 557 | beacon_int = iwl_adjust_beacon_interval( |
| 558 | priv->vif->bss_conf.beacon_int); |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 559 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 560 | /* TODO: we need to get atim_window from upper stack |
| 561 | * for now we set to 0 */ |
| 562 | priv->rxon_timing.atim_window = 0; |
| 563 | } |
| 564 | |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 565 | priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 566 | |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 567 | tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ |
| 568 | interval_tm = beacon_int * 1024; |
| 569 | rem = do_div(tsf, interval_tm); |
| 570 | priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem); |
| 571 | |
| 572 | spin_unlock_irqrestore(&priv->lock, flags); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 573 | IWL_DEBUG_ASSOC(priv, "beacon interval %d beacon timer %d beacon tim %d\n", |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 574 | le16_to_cpu(priv->rxon_timing.beacon_interval), |
| 575 | le32_to_cpu(priv->rxon_timing.beacon_init_val), |
| 576 | le16_to_cpu(priv->rxon_timing.atim_window)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 577 | } |
| 578 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 579 | /****************************************************************************** |
| 580 | * |
| 581 | * Generic RX handler implementations |
| 582 | * |
| 583 | ******************************************************************************/ |
Tomas Winkler | 885ba20 | 2008-05-29 16:34:55 +0800 | [diff] [blame] | 584 | static void iwl_rx_reply_alive(struct iwl_priv *priv, |
| 585 | struct iwl_rx_mem_buffer *rxb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 586 | { |
Tomas Winkler | db11d63 | 2008-05-05 10:22:33 +0800 | [diff] [blame] | 587 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
Tomas Winkler | 885ba20 | 2008-05-29 16:34:55 +0800 | [diff] [blame] | 588 | struct iwl_alive_resp *palive; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 589 | struct delayed_work *pwork; |
| 590 | |
| 591 | palive = &pkt->u.alive_frame; |
| 592 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 593 | IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 594 | "0x%01X 0x%01X\n", |
| 595 | palive->is_valid, palive->ver_type, |
| 596 | palive->ver_subtype); |
| 597 | |
| 598 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 599 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 600 | memcpy(&priv->card_alive_init, |
| 601 | &pkt->u.alive_frame, |
Tomas Winkler | 885ba20 | 2008-05-29 16:34:55 +0800 | [diff] [blame] | 602 | sizeof(struct iwl_init_alive_resp)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 603 | pwork = &priv->init_alive_start; |
| 604 | } else { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 605 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 606 | memcpy(&priv->card_alive, &pkt->u.alive_frame, |
Tomas Winkler | 885ba20 | 2008-05-29 16:34:55 +0800 | [diff] [blame] | 607 | sizeof(struct iwl_alive_resp)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 608 | pwork = &priv->alive_start; |
| 609 | } |
| 610 | |
| 611 | /* We delay the ALIVE response by 5ms to |
| 612 | * give the HW RF Kill time to activate... */ |
| 613 | if (palive->is_valid == UCODE_VALID_OK) |
| 614 | queue_delayed_work(priv->workqueue, pwork, |
| 615 | msecs_to_jiffies(5)); |
| 616 | else |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 617 | IWL_WARN(priv, "uCode did not respond OK.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 618 | } |
| 619 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 620 | static void iwl_bg_beacon_update(struct work_struct *work) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 621 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 622 | struct iwl_priv *priv = |
| 623 | container_of(work, struct iwl_priv, beacon_update); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 624 | struct sk_buff *beacon; |
| 625 | |
| 626 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 627 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 628 | |
| 629 | if (!beacon) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 630 | IWL_ERR(priv, "update beacon failed\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 631 | return; |
| 632 | } |
| 633 | |
| 634 | mutex_lock(&priv->mutex); |
| 635 | /* new beacon skb is allocated every time; dispose previous.*/ |
| 636 | if (priv->ibss_beacon) |
| 637 | dev_kfree_skb(priv->ibss_beacon); |
| 638 | |
| 639 | priv->ibss_beacon = beacon; |
| 640 | mutex_unlock(&priv->mutex); |
| 641 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 642 | iwl_send_beacon_cmd(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 643 | } |
| 644 | |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 645 | /** |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 646 | * iwl_bg_statistics_periodic - Timer callback to queue statistics |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 647 | * |
| 648 | * This callback is provided in order to send a statistics request. |
| 649 | * |
| 650 | * This timer function is continually reset to execute within |
| 651 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION |
| 652 | * was received. We need to ensure we receive the statistics in order |
| 653 | * to update the temperature used for calibrating the TXPOWER. |
| 654 | */ |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 655 | static void iwl_bg_statistics_periodic(unsigned long data) |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 656 | { |
| 657 | struct iwl_priv *priv = (struct iwl_priv *)data; |
| 658 | |
| 659 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 660 | return; |
| 661 | |
Mohamed Abbas | 61780ee | 2008-10-29 14:05:49 -0700 | [diff] [blame] | 662 | /* dont send host command if rf-kill is on */ |
| 663 | if (!iwl_is_ready_rf(priv)) |
| 664 | return; |
| 665 | |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 666 | iwl_send_statistics_request(priv, CMD_ASYNC); |
| 667 | } |
| 668 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 669 | static void iwl_rx_beacon_notif(struct iwl_priv *priv, |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 670 | struct iwl_rx_mem_buffer *rxb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 671 | { |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 672 | #ifdef CONFIG_IWLWIFI_DEBUG |
Tomas Winkler | db11d63 | 2008-05-05 10:22:33 +0800 | [diff] [blame] | 673 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
Tomas Winkler | 2aa6ab8 | 2008-12-11 10:33:40 -0800 | [diff] [blame] | 674 | struct iwl4965_beacon_notif *beacon = |
| 675 | (struct iwl4965_beacon_notif *)pkt->u.raw; |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 676 | u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 677 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 678 | IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 679 | "tsf %d %d rate %d\n", |
Tomas Winkler | 25a6572 | 2008-06-12 09:47:07 +0800 | [diff] [blame] | 680 | le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 681 | beacon->beacon_notify_hdr.failure_frame, |
| 682 | le32_to_cpu(beacon->ibss_mgr_status), |
| 683 | le32_to_cpu(beacon->high_tsf), |
| 684 | le32_to_cpu(beacon->low_tsf), rate); |
| 685 | #endif |
| 686 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 687 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 688 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
| 689 | queue_work(priv->workqueue, &priv->beacon_update); |
| 690 | } |
| 691 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 692 | /* Handle notification from uCode that card's power state is changing |
| 693 | * due to software, hardware, or critical temperature RFKILL */ |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 694 | static void iwl_rx_card_state_notif(struct iwl_priv *priv, |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 695 | struct iwl_rx_mem_buffer *rxb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 696 | { |
Tomas Winkler | db11d63 | 2008-05-05 10:22:33 +0800 | [diff] [blame] | 697 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 698 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
| 699 | unsigned long status = priv->status; |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 700 | unsigned long reg_flags; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 701 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 702 | IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 703 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
| 704 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); |
| 705 | |
| 706 | if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | |
| 707 | RF_CARD_DISABLED)) { |
| 708 | |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 709 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 710 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
| 711 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 712 | iwl_write_direct32(priv, HBUS_TARG_MBX_C, |
| 713 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 714 | |
| 715 | if (!(flags & RXON_CARD_DISABLED)) { |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 716 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 717 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 718 | iwl_write_direct32(priv, HBUS_TARG_MBX_C, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 719 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); |
| 720 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | if (flags & RF_CARD_DISABLED) { |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 724 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 725 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 726 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 727 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 728 | if (!iwl_grab_nic_access(priv)) |
| 729 | iwl_release_nic_access(priv); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 730 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 731 | } |
| 732 | } |
| 733 | |
| 734 | if (flags & HW_CARD_DISABLED) |
| 735 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
| 736 | else |
| 737 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
| 738 | |
| 739 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 740 | if (!(flags & RXON_CARD_DISABLED)) |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 741 | iwl_scan_cancel(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 742 | |
| 743 | if ((test_bit(STATUS_RF_KILL_HW, &status) != |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 744 | test_bit(STATUS_RF_KILL_HW, &priv->status))) |
| 745 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, |
| 746 | test_bit(STATUS_RF_KILL_HW, &priv->status)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 747 | else |
| 748 | wake_up_interruptible(&priv->wait_command_queue); |
| 749 | } |
| 750 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 751 | int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src) |
Tomas Winkler | e2e3c57 | 2008-07-18 13:53:04 +0800 | [diff] [blame] | 752 | { |
Tomas Winkler | e2e3c57 | 2008-07-18 13:53:04 +0800 | [diff] [blame] | 753 | if (src == IWL_PWR_SRC_VAUX) { |
Tomas Winkler | 3fdb68d | 2009-02-10 15:19:02 -0800 | [diff] [blame] | 754 | if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) |
Tomas Winkler | e2e3c57 | 2008-07-18 13:53:04 +0800 | [diff] [blame] | 755 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, |
| 756 | APMG_PS_CTRL_VAL_PWR_SRC_VAUX, |
| 757 | ~APMG_PS_CTRL_MSK_PWR_SRC); |
| 758 | } else { |
| 759 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, |
| 760 | APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, |
| 761 | ~APMG_PS_CTRL_MSK_PWR_SRC); |
| 762 | } |
| 763 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 764 | return 0; |
Tomas Winkler | e2e3c57 | 2008-07-18 13:53:04 +0800 | [diff] [blame] | 765 | } |
| 766 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 767 | /** |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 768 | * iwl_setup_rx_handlers - Initialize Rx handler callbacks |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 769 | * |
| 770 | * Setup the RX handlers for each of the reply types sent from the uCode |
| 771 | * to the host. |
| 772 | * |
| 773 | * This function chains into the hardware specific files for them to setup |
| 774 | * any hardware specific handlers as well. |
| 775 | */ |
Emmanuel Grumbach | 653fa4a | 2008-06-30 17:23:11 +0800 | [diff] [blame] | 776 | static void iwl_setup_rx_handlers(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 777 | { |
Tomas Winkler | 885ba20 | 2008-05-29 16:34:55 +0800 | [diff] [blame] | 778 | priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 779 | priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; |
| 780 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 781 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 782 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 783 | iwl_rx_pm_debug_statistics_notif; |
| 784 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl_rx_beacon_notif; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 785 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 786 | /* |
| 787 | * The same handler is used for both the REPLY to a discrete |
| 788 | * statistics request from the host as well as for the periodic |
| 789 | * statistics notifications (after received beacons) from the uCode. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 790 | */ |
Emmanuel Grumbach | 8f91aec | 2008-06-30 17:23:07 +0800 | [diff] [blame] | 791 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics; |
| 792 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics; |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 793 | |
Tomas Winkler | 21c339b | 2008-11-07 09:58:41 -0800 | [diff] [blame] | 794 | iwl_setup_spectrum_handlers(priv); |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 795 | iwl_setup_rx_scan_handlers(priv); |
| 796 | |
Ron Rindjunsky | 37a4421 | 2008-05-29 16:35:18 +0800 | [diff] [blame] | 797 | /* status change handler */ |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 798 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl_rx_card_state_notif; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 799 | |
Tomas Winkler | c135475 | 2008-05-29 16:35:04 +0800 | [diff] [blame] | 800 | priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = |
| 801 | iwl_rx_missed_beacon_notif; |
Ron Rindjunsky | 37a4421 | 2008-05-29 16:35:18 +0800 | [diff] [blame] | 802 | /* Rx handlers */ |
Emmanuel Grumbach | 1781a07 | 2008-06-30 17:23:09 +0800 | [diff] [blame] | 803 | priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy; |
| 804 | priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx; |
Emmanuel Grumbach | 653fa4a | 2008-06-30 17:23:11 +0800 | [diff] [blame] | 805 | /* block ack */ |
| 806 | priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba; |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 807 | /* Set up hardware specific Rx handlers */ |
Emmanuel Grumbach | d4789ef | 2008-04-24 11:55:20 -0700 | [diff] [blame] | 808 | priv->cfg->ops->lib->rx_handler_setup(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 809 | } |
| 810 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 811 | /** |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 812 | * iwl_rx_handle - Main entry function for receiving responses from uCode |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 813 | * |
| 814 | * Uses the priv->rx_handlers callback function array to invoke |
| 815 | * the appropriate handlers, including command responses, |
| 816 | * frame-received notifications, and other notifications. |
| 817 | */ |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 818 | void iwl_rx_handle(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 819 | { |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 820 | struct iwl_rx_mem_buffer *rxb; |
Tomas Winkler | db11d63 | 2008-05-05 10:22:33 +0800 | [diff] [blame] | 821 | struct iwl_rx_packet *pkt; |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 822 | struct iwl_rx_queue *rxq = &priv->rxq; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 823 | u32 r, i; |
| 824 | int reclaim; |
| 825 | unsigned long flags; |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 826 | u8 fill_rx = 0; |
Mohamed Abbas | d68ab68 | 2008-02-07 13:16:33 -0800 | [diff] [blame] | 827 | u32 count = 8; |
Mohamed Abbas | 4752c93 | 2009-05-22 11:01:51 -0700 | [diff] [blame] | 828 | int total_empty; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 829 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 830 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
| 831 | * buffer that the driver may process (last buffer filled by ucode). */ |
Winkler, Tomas | 8d86422 | 2008-11-07 09:58:39 -0800 | [diff] [blame] | 832 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 833 | i = rxq->read; |
| 834 | |
| 835 | /* Rx interrupt, but nothing sent from uCode */ |
| 836 | if (i == r) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 837 | IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 838 | |
Mohamed Abbas | 4752c93 | 2009-05-22 11:01:51 -0700 | [diff] [blame] | 839 | /* calculate total frames need to be restock after handling RX */ |
| 840 | total_empty = r - priv->rxq.write_actual; |
| 841 | if (total_empty < 0) |
| 842 | total_empty += RX_QUEUE_SIZE; |
| 843 | |
| 844 | if (total_empty > (RX_QUEUE_SIZE / 2)) |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 845 | fill_rx = 1; |
| 846 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 847 | while (i != r) { |
| 848 | rxb = rxq->queue[i]; |
| 849 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 850 | /* If an RXB doesn't have a Rx queue slot associated with it, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 851 | * then a bug has been introduced in the queue refilling |
| 852 | * routines -- catch it here */ |
| 853 | BUG_ON(rxb == NULL); |
| 854 | |
| 855 | rxq->queue[i] = NULL; |
| 856 | |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 857 | pci_unmap_single(priv->pci_dev, rxb->real_dma_addr, |
| 858 | priv->hw_params.rx_buf_size + 256, |
| 859 | PCI_DMA_FROMDEVICE); |
Tomas Winkler | db11d63 | 2008-05-05 10:22:33 +0800 | [diff] [blame] | 860 | pkt = (struct iwl_rx_packet *)rxb->skb->data; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 861 | |
| 862 | /* Reclaim a command buffer only if this packet is a response |
| 863 | * to a (driver-originated) command. |
| 864 | * If the packet (e.g. Rx frame) originated from uCode, |
| 865 | * there is no command buffer to reclaim. |
| 866 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, |
| 867 | * but apparently a few don't get set; catch them here. */ |
| 868 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && |
| 869 | (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && |
Tomas Winkler | 857485c | 2008-03-21 13:53:44 -0700 | [diff] [blame] | 870 | (pkt->hdr.cmd != REPLY_RX) && |
Daniel Halperin | 7dddaf1 | 2008-10-23 23:48:58 -0700 | [diff] [blame] | 871 | (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) && |
Zhu Yi | cfe0170 | 2007-09-27 11:27:31 +0800 | [diff] [blame] | 872 | (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 873 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
| 874 | (pkt->hdr.cmd != REPLY_TX); |
| 875 | |
| 876 | /* Based on type of command response or notification, |
| 877 | * handle those that need handling via function in |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 878 | * rx_handlers table. See iwl_setup_rx_handlers() */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 879 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 880 | IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, |
Ester Kummer | f3d6799 | 2008-05-06 11:05:12 +0800 | [diff] [blame] | 881 | i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 882 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 883 | priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 884 | } else { |
| 885 | /* No handling needed */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 886 | IWL_DEBUG_RX(priv, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 887 | "r %d i %d No handler needed for %s, 0x%02x\n", |
| 888 | r, i, get_cmd_string(pkt->hdr.cmd), |
| 889 | pkt->hdr.cmd); |
| 890 | } |
| 891 | |
| 892 | if (reclaim) { |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 893 | /* Invoke any callbacks, transfer the skb to caller, and |
Tomas Winkler | 857485c | 2008-03-21 13:53:44 -0700 | [diff] [blame] | 894 | * fire off the (possibly) blocking iwl_send_cmd() |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 895 | * as we reclaim the driver command queue */ |
| 896 | if (rxb && rxb->skb) |
Tomas Winkler | 17b8892 | 2008-05-29 16:35:12 +0800 | [diff] [blame] | 897 | iwl_tx_cmd_complete(priv, rxb); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 898 | else |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 899 | IWL_WARN(priv, "Claim null rxb?\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 900 | } |
| 901 | |
| 902 | /* For now we just don't re-use anything. We can tweak this |
| 903 | * later to try and re-use notification packets and SKBs that |
| 904 | * fail to Rx correctly */ |
| 905 | if (rxb->skb != NULL) { |
| 906 | priv->alloc_rxb_skb--; |
| 907 | dev_kfree_skb_any(rxb->skb); |
| 908 | rxb->skb = NULL; |
| 909 | } |
| 910 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 911 | spin_lock_irqsave(&rxq->lock, flags); |
| 912 | list_add_tail(&rxb->list, &priv->rxq.rx_used); |
| 913 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 914 | i = (i + 1) & RX_QUEUE_MASK; |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 915 | /* If there are a lot of unused frames, |
| 916 | * restock the Rx queue so ucode wont assert. */ |
| 917 | if (fill_rx) { |
| 918 | count++; |
| 919 | if (count >= 8) { |
| 920 | priv->rxq.read = i; |
Mohamed Abbas | 4752c93 | 2009-05-22 11:01:51 -0700 | [diff] [blame] | 921 | iwl_rx_replenish_now(priv); |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 922 | count = 0; |
| 923 | } |
| 924 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 925 | } |
| 926 | |
| 927 | /* Backtrack one entry */ |
| 928 | priv->rxq.read = i; |
Mohamed Abbas | 4752c93 | 2009-05-22 11:01:51 -0700 | [diff] [blame] | 929 | if (fill_rx) |
| 930 | iwl_rx_replenish_now(priv); |
| 931 | else |
| 932 | iwl_rx_queue_restock(priv); |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 933 | } |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 934 | |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 935 | /* call this function to flush any scheduled tasklet */ |
| 936 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) |
| 937 | { |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 938 | /* wait to make sure we flush pending tasklet*/ |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 939 | synchronize_irq(priv->pci_dev->irq); |
| 940 | tasklet_kill(&priv->irq_tasklet); |
| 941 | } |
| 942 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 943 | static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 944 | { |
| 945 | u32 inta, handled = 0; |
| 946 | u32 inta_fh; |
| 947 | unsigned long flags; |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 948 | #ifdef CONFIG_IWLWIFI_DEBUG |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 949 | u32 inta_mask; |
| 950 | #endif |
| 951 | |
| 952 | spin_lock_irqsave(&priv->lock, flags); |
| 953 | |
| 954 | /* Ack/clear/reset pending uCode interrupts. |
| 955 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, |
| 956 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 957 | inta = iwl_read32(priv, CSR_INT); |
| 958 | iwl_write32(priv, CSR_INT, inta); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 959 | |
| 960 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. |
| 961 | * Any new interrupts that happen after this, either while we're |
| 962 | * in this tasklet, or later, will show up in next ISR/tasklet. */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 963 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
| 964 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 965 | |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 966 | #ifdef CONFIG_IWLWIFI_DEBUG |
Ester Kummer | bf403db | 2008-05-05 10:22:40 +0800 | [diff] [blame] | 967 | if (priv->debug_level & IWL_DL_ISR) { |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 968 | /* just for debug */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 969 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 970 | IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 971 | inta, inta_mask, inta_fh); |
| 972 | } |
| 973 | #endif |
| 974 | |
| 975 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not |
| 976 | * atomic, make sure that inta covers all the interrupts that |
| 977 | * we've discovered, even if FH interrupt came in just after |
| 978 | * reading CSR_INT. */ |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 979 | if (inta_fh & CSR49_FH_INT_RX_MASK) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 980 | inta |= CSR_INT_BIT_FH_RX; |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 981 | if (inta_fh & CSR49_FH_INT_TX_MASK) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 982 | inta |= CSR_INT_BIT_FH_TX; |
| 983 | |
| 984 | /* Now service all interrupt bits discovered above. */ |
| 985 | if (inta & CSR_INT_BIT_HW_ERR) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 986 | IWL_ERR(priv, "Microcode HW error detected. Restarting.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 987 | |
| 988 | /* Tell the device to stop sending interrupts */ |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 989 | iwl_disable_interrupts(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 990 | |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 991 | priv->isr_stats.hw++; |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 992 | iwl_irq_handle_error(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 993 | |
| 994 | handled |= CSR_INT_BIT_HW_ERR; |
| 995 | |
| 996 | spin_unlock_irqrestore(&priv->lock, flags); |
| 997 | |
| 998 | return; |
| 999 | } |
| 1000 | |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 1001 | #ifdef CONFIG_IWLWIFI_DEBUG |
Ester Kummer | bf403db | 2008-05-05 10:22:40 +0800 | [diff] [blame] | 1002 | if (priv->debug_level & (IWL_DL_ISR)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1003 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1004 | if (inta & CSR_INT_BIT_SCD) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1005 | IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " |
Joonwoo Park | 25c03d8 | 2008-01-23 10:15:20 -0800 | [diff] [blame] | 1006 | "the frame/frames.\n"); |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1007 | priv->isr_stats.sch++; |
| 1008 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1009 | |
| 1010 | /* Alive notification via Rx interrupt will do the real work */ |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1011 | if (inta & CSR_INT_BIT_ALIVE) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1012 | IWL_DEBUG_ISR(priv, "Alive interrupt\n"); |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1013 | priv->isr_stats.alive++; |
| 1014 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1015 | } |
| 1016 | #endif |
| 1017 | /* Safely ignore these bits for debug checks below */ |
Joonwoo Park | 25c03d8 | 2008-01-23 10:15:20 -0800 | [diff] [blame] | 1018 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1019 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1020 | /* HW RF KILL switch toggled */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1021 | if (inta & CSR_INT_BIT_RF_KILL) { |
| 1022 | int hw_rf_kill = 0; |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 1023 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1024 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
| 1025 | hw_rf_kill = 1; |
| 1026 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1027 | IWL_DEBUG_RF_KILL(priv, "RF_KILL bit toggled to %s.\n", |
Abhijeet Kolekar | c305606 | 2008-11-12 13:14:08 -0800 | [diff] [blame] | 1028 | hw_rf_kill ? "disable radio" : "enable radio"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1029 | |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1030 | priv->isr_stats.rfkill++; |
| 1031 | |
Emmanuel Grumbach | a9efa65 | 2008-06-30 17:23:25 +0800 | [diff] [blame] | 1032 | /* driver only loads ucode once setting the interface up. |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 1033 | * the driver allows loading the ucode even if the radio |
| 1034 | * is killed. Hence update the killswitch state here. The |
| 1035 | * rfkill handler will care about restarting if needed. |
Emmanuel Grumbach | a9efa65 | 2008-06-30 17:23:25 +0800 | [diff] [blame] | 1036 | */ |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 1037 | if (!test_bit(STATUS_ALIVE, &priv->status)) { |
| 1038 | if (hw_rf_kill) |
| 1039 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
| 1040 | else |
| 1041 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 1042 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill); |
Mohamed Abbas | edb3422 | 2008-12-11 10:33:37 -0800 | [diff] [blame] | 1043 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1044 | |
| 1045 | handled |= CSR_INT_BIT_RF_KILL; |
| 1046 | } |
| 1047 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1048 | /* Chip got too hot and stopped itself */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1049 | if (inta & CSR_INT_BIT_CT_KILL) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1050 | IWL_ERR(priv, "Microcode CT kill error detected.\n"); |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1051 | priv->isr_stats.ctkill++; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1052 | handled |= CSR_INT_BIT_CT_KILL; |
| 1053 | } |
| 1054 | |
| 1055 | /* Error detected by uCode */ |
| 1056 | if (inta & CSR_INT_BIT_SW_ERR) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1057 | IWL_ERR(priv, "Microcode SW error detected. " |
| 1058 | " Restarting 0x%X.\n", inta); |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1059 | priv->isr_stats.sw++; |
| 1060 | priv->isr_stats.sw_err = inta; |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1061 | iwl_irq_handle_error(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1062 | handled |= CSR_INT_BIT_SW_ERR; |
| 1063 | } |
| 1064 | |
| 1065 | /* uCode wakes up after power-down sleep */ |
| 1066 | if (inta & CSR_INT_BIT_WAKEUP) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1067 | IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 1068 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
Tomas Winkler | babcebf | 2008-05-15 13:54:00 +0800 | [diff] [blame] | 1069 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
| 1070 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); |
| 1071 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); |
| 1072 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); |
| 1073 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); |
| 1074 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1075 | |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1076 | priv->isr_stats.wakeup++; |
| 1077 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1078 | handled |= CSR_INT_BIT_WAKEUP; |
| 1079 | } |
| 1080 | |
| 1081 | /* All uCode command responses, including Tx command responses, |
| 1082 | * Rx "responses" (frame-received notification), and other |
| 1083 | * notifications from uCode come through here*/ |
| 1084 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 1085 | iwl_rx_handle(priv); |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1086 | priv->isr_stats.rx++; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1087 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
| 1088 | } |
| 1089 | |
| 1090 | if (inta & CSR_INT_BIT_FH_TX) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1091 | IWL_DEBUG_ISR(priv, "Tx interrupt\n"); |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1092 | priv->isr_stats.tx++; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1093 | handled |= CSR_INT_BIT_FH_TX; |
Ron Rindjunsky | dbb983b | 2008-05-15 13:54:12 +0800 | [diff] [blame] | 1094 | /* FH finished to write, send event */ |
| 1095 | priv->ucode_write_complete = 1; |
| 1096 | wake_up_interruptible(&priv->wait_command_queue); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1097 | } |
| 1098 | |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1099 | if (inta & ~handled) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1100 | IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1101 | priv->isr_stats.unhandled++; |
| 1102 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1103 | |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1104 | if (inta & ~(priv->inta_mask)) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 1105 | IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1106 | inta & ~priv->inta_mask); |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 1107 | IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1108 | } |
| 1109 | |
| 1110 | /* Re-enable all interrupts */ |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 1111 | /* only Re-enable if diabled by irq */ |
| 1112 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1113 | iwl_enable_interrupts(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1114 | |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 1115 | #ifdef CONFIG_IWLWIFI_DEBUG |
Ester Kummer | bf403db | 2008-05-05 10:22:40 +0800 | [diff] [blame] | 1116 | if (priv->debug_level & (IWL_DL_ISR)) { |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 1117 | inta = iwl_read32(priv, CSR_INT); |
| 1118 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
| 1119 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1120 | IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1121 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); |
| 1122 | } |
| 1123 | #endif |
| 1124 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1125 | } |
| 1126 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1127 | /* tasklet for iwlagn interrupt */ |
| 1128 | static void iwl_irq_tasklet(struct iwl_priv *priv) |
| 1129 | { |
| 1130 | u32 inta = 0; |
| 1131 | u32 handled = 0; |
| 1132 | unsigned long flags; |
| 1133 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 1134 | u32 inta_mask; |
| 1135 | #endif |
| 1136 | |
| 1137 | spin_lock_irqsave(&priv->lock, flags); |
| 1138 | |
| 1139 | /* Ack/clear/reset pending uCode interrupts. |
| 1140 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, |
| 1141 | */ |
| 1142 | iwl_write32(priv, CSR_INT, priv->inta); |
| 1143 | |
| 1144 | inta = priv->inta; |
| 1145 | |
| 1146 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 1147 | if (priv->debug_level & IWL_DL_ISR) { |
| 1148 | /* just for debug */ |
| 1149 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
| 1150 | IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ", |
| 1151 | inta, inta_mask); |
| 1152 | } |
| 1153 | #endif |
| 1154 | /* saved interrupt in inta variable now we can reset priv->inta */ |
| 1155 | priv->inta = 0; |
| 1156 | |
| 1157 | /* Now service all interrupt bits discovered above. */ |
| 1158 | if (inta & CSR_INT_BIT_HW_ERR) { |
| 1159 | IWL_ERR(priv, "Microcode HW error detected. Restarting.\n"); |
| 1160 | |
| 1161 | /* Tell the device to stop sending interrupts */ |
| 1162 | iwl_disable_interrupts(priv); |
| 1163 | |
| 1164 | priv->isr_stats.hw++; |
| 1165 | iwl_irq_handle_error(priv); |
| 1166 | |
| 1167 | handled |= CSR_INT_BIT_HW_ERR; |
| 1168 | |
| 1169 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1170 | |
| 1171 | return; |
| 1172 | } |
| 1173 | |
| 1174 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 1175 | if (priv->debug_level & (IWL_DL_ISR)) { |
| 1176 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
| 1177 | if (inta & CSR_INT_BIT_SCD) { |
| 1178 | IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " |
| 1179 | "the frame/frames.\n"); |
| 1180 | priv->isr_stats.sch++; |
| 1181 | } |
| 1182 | |
| 1183 | /* Alive notification via Rx interrupt will do the real work */ |
| 1184 | if (inta & CSR_INT_BIT_ALIVE) { |
| 1185 | IWL_DEBUG_ISR(priv, "Alive interrupt\n"); |
| 1186 | priv->isr_stats.alive++; |
| 1187 | } |
| 1188 | } |
| 1189 | #endif |
| 1190 | /* Safely ignore these bits for debug checks below */ |
| 1191 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
| 1192 | |
| 1193 | /* HW RF KILL switch toggled */ |
| 1194 | if (inta & CSR_INT_BIT_RF_KILL) { |
| 1195 | int hw_rf_kill = 0; |
| 1196 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
| 1197 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
| 1198 | hw_rf_kill = 1; |
| 1199 | |
| 1200 | IWL_DEBUG_RF_KILL(priv, "RF_KILL bit toggled to %s.\n", |
| 1201 | hw_rf_kill ? "disable radio" : "enable radio"); |
| 1202 | |
| 1203 | priv->isr_stats.rfkill++; |
| 1204 | |
| 1205 | /* driver only loads ucode once setting the interface up. |
| 1206 | * the driver allows loading the ucode even if the radio |
| 1207 | * is killed. Hence update the killswitch state here. The |
| 1208 | * rfkill handler will care about restarting if needed. |
| 1209 | */ |
| 1210 | if (!test_bit(STATUS_ALIVE, &priv->status)) { |
| 1211 | if (hw_rf_kill) |
| 1212 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
| 1213 | else |
| 1214 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 1215 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1216 | } |
| 1217 | |
| 1218 | handled |= CSR_INT_BIT_RF_KILL; |
| 1219 | } |
| 1220 | |
| 1221 | /* Chip got too hot and stopped itself */ |
| 1222 | if (inta & CSR_INT_BIT_CT_KILL) { |
| 1223 | IWL_ERR(priv, "Microcode CT kill error detected.\n"); |
| 1224 | priv->isr_stats.ctkill++; |
| 1225 | handled |= CSR_INT_BIT_CT_KILL; |
| 1226 | } |
| 1227 | |
| 1228 | /* Error detected by uCode */ |
| 1229 | if (inta & CSR_INT_BIT_SW_ERR) { |
| 1230 | IWL_ERR(priv, "Microcode SW error detected. " |
| 1231 | " Restarting 0x%X.\n", inta); |
| 1232 | priv->isr_stats.sw++; |
| 1233 | priv->isr_stats.sw_err = inta; |
| 1234 | iwl_irq_handle_error(priv); |
| 1235 | handled |= CSR_INT_BIT_SW_ERR; |
| 1236 | } |
| 1237 | |
| 1238 | /* uCode wakes up after power-down sleep */ |
| 1239 | if (inta & CSR_INT_BIT_WAKEUP) { |
| 1240 | IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); |
| 1241 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
| 1242 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
| 1243 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); |
| 1244 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); |
| 1245 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); |
| 1246 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); |
| 1247 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); |
| 1248 | |
| 1249 | priv->isr_stats.wakeup++; |
| 1250 | |
| 1251 | handled |= CSR_INT_BIT_WAKEUP; |
| 1252 | } |
| 1253 | |
| 1254 | /* All uCode command responses, including Tx command responses, |
| 1255 | * Rx "responses" (frame-received notification), and other |
| 1256 | * notifications from uCode come through here*/ |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1257 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX | |
| 1258 | CSR_INT_BIT_RX_PERIODIC)) { |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1259 | IWL_DEBUG_ISR(priv, "Rx interrupt\n"); |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1260 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { |
| 1261 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
| 1262 | iwl_write32(priv, CSR_FH_INT_STATUS, |
| 1263 | CSR49_FH_INT_RX_MASK); |
| 1264 | } |
| 1265 | if (inta & CSR_INT_BIT_RX_PERIODIC) { |
| 1266 | handled |= CSR_INT_BIT_RX_PERIODIC; |
| 1267 | iwl_write32(priv, CSR_INT, CSR_INT_BIT_RX_PERIODIC); |
| 1268 | } |
| 1269 | /* Sending RX interrupt require many steps to be done in the |
| 1270 | * the device: |
| 1271 | * 1- write interrupt to current index in ICT table. |
| 1272 | * 2- dma RX frame. |
| 1273 | * 3- update RX shared data to indicate last write index. |
| 1274 | * 4- send interrupt. |
| 1275 | * This could lead to RX race, driver could receive RX interrupt |
| 1276 | * but the shared data changes does not reflect this. |
| 1277 | * this could lead to RX race, RX periodic will solve this race |
| 1278 | */ |
| 1279 | iwl_write32(priv, CSR_INT_PERIODIC_REG, |
| 1280 | CSR_INT_PERIODIC_DIS); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1281 | iwl_rx_handle(priv); |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1282 | /* Only set RX periodic if real RX is received. */ |
| 1283 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) |
| 1284 | iwl_write32(priv, CSR_INT_PERIODIC_REG, |
| 1285 | CSR_INT_PERIODIC_ENA); |
| 1286 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1287 | priv->isr_stats.rx++; |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1288 | } |
| 1289 | |
| 1290 | if (inta & CSR_INT_BIT_FH_TX) { |
| 1291 | iwl_write32(priv, CSR_FH_INT_STATUS, CSR49_FH_INT_TX_MASK); |
| 1292 | IWL_DEBUG_ISR(priv, "Tx interrupt\n"); |
| 1293 | priv->isr_stats.tx++; |
| 1294 | handled |= CSR_INT_BIT_FH_TX; |
| 1295 | /* FH finished to write, send event */ |
| 1296 | priv->ucode_write_complete = 1; |
| 1297 | wake_up_interruptible(&priv->wait_command_queue); |
| 1298 | } |
| 1299 | |
| 1300 | if (inta & ~handled) { |
| 1301 | IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); |
| 1302 | priv->isr_stats.unhandled++; |
| 1303 | } |
| 1304 | |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1305 | if (inta & ~(priv->inta_mask)) { |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1306 | IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1307 | inta & ~priv->inta_mask); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1308 | } |
| 1309 | |
| 1310 | |
| 1311 | /* Re-enable all interrupts */ |
| 1312 | /* only Re-enable if diabled by irq */ |
| 1313 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) |
| 1314 | iwl_enable_interrupts(priv); |
| 1315 | |
| 1316 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1317 | |
| 1318 | } |
| 1319 | |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1320 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1321 | /****************************************************************************** |
| 1322 | * |
| 1323 | * uCode download functions |
| 1324 | * |
| 1325 | ******************************************************************************/ |
| 1326 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1327 | static void iwl_dealloc_ucode_pci(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1328 | { |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 1329 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
| 1330 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); |
| 1331 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
| 1332 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); |
| 1333 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
| 1334 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1335 | } |
| 1336 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1337 | static void iwl_nic_start(struct iwl_priv *priv) |
Ron Rindjunsky | edcdf8b | 2008-05-15 13:53:55 +0800 | [diff] [blame] | 1338 | { |
| 1339 | /* Remove all resets to allow NIC to operate */ |
| 1340 | iwl_write32(priv, CSR_RESET, 0); |
| 1341 | } |
| 1342 | |
| 1343 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1344 | /** |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1345 | * iwl_read_ucode - Read uCode images from disk file. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1346 | * |
| 1347 | * Copy into buffers for card to fetch via bus-mastering |
| 1348 | */ |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1349 | static int iwl_read_ucode(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1350 | { |
Ron Rindjunsky | 14b3d33 | 2008-06-13 15:44:54 +0800 | [diff] [blame] | 1351 | struct iwl_ucode *ucode; |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1352 | int ret = -EINVAL, index; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1353 | const struct firmware *ucode_raw; |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1354 | const char *name_pre = priv->cfg->fw_name_pre; |
| 1355 | const unsigned int api_max = priv->cfg->ucode_api_max; |
| 1356 | const unsigned int api_min = priv->cfg->ucode_api_min; |
| 1357 | char buf[25]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1358 | u8 *src; |
| 1359 | size_t len; |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1360 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1361 | |
| 1362 | /* Ask kernel firmware_class module to get the boot firmware off disk. |
| 1363 | * request_firmware() is synchronous, file is in memory on return. */ |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1364 | for (index = api_max; index >= api_min; index--) { |
| 1365 | sprintf(buf, "%s%d%s", name_pre, index, ".ucode"); |
| 1366 | ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); |
| 1367 | if (ret < 0) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1368 | IWL_ERR(priv, "%s firmware file req failed: %d\n", |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1369 | buf, ret); |
| 1370 | if (ret == -ENOENT) |
| 1371 | continue; |
| 1372 | else |
| 1373 | goto error; |
| 1374 | } else { |
| 1375 | if (index < api_max) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1376 | IWL_ERR(priv, "Loaded firmware %s, " |
| 1377 | "which is deprecated. " |
| 1378 | "Please use API v%u instead.\n", |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1379 | buf, api_max); |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1380 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1381 | IWL_DEBUG_INFO(priv, "Got firmware '%s' file (%zd bytes) from disk\n", |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1382 | buf, ucode_raw->size); |
| 1383 | break; |
| 1384 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1385 | } |
| 1386 | |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1387 | if (ret < 0) |
| 1388 | goto error; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1389 | |
| 1390 | /* Make sure that we got at least our header! */ |
| 1391 | if (ucode_raw->size < sizeof(*ucode)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1392 | IWL_ERR(priv, "File size way too small!\n"); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1393 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1394 | goto err_release; |
| 1395 | } |
| 1396 | |
| 1397 | /* Data from ucode file: header followed by uCode images */ |
| 1398 | ucode = (void *)ucode_raw->data; |
| 1399 | |
Chatre, Reinette | c02b3ac | 2008-12-02 12:14:05 -0800 | [diff] [blame] | 1400 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1401 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1402 | inst_size = le32_to_cpu(ucode->inst_size); |
| 1403 | data_size = le32_to_cpu(ucode->data_size); |
| 1404 | init_size = le32_to_cpu(ucode->init_size); |
| 1405 | init_data_size = le32_to_cpu(ucode->init_data_size); |
| 1406 | boot_size = le32_to_cpu(ucode->boot_size); |
| 1407 | |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1408 | /* api_ver should match the api version forming part of the |
| 1409 | * firmware filename ... but we don't check for that and only rely |
Nick Andrew | 877d031 | 2009-01-26 11:06:57 +0100 | [diff] [blame] | 1410 | * on the API version read from firmware header from here on forward */ |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1411 | |
| 1412 | if (api_ver < api_min || api_ver > api_max) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1413 | IWL_ERR(priv, "Driver unable to support your firmware API. " |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1414 | "Driver supports v%u, firmware is v%u.\n", |
| 1415 | api_max, api_ver); |
| 1416 | priv->ucode_ver = 0; |
| 1417 | ret = -EINVAL; |
| 1418 | goto err_release; |
| 1419 | } |
| 1420 | if (api_ver != api_max) |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 1421 | IWL_ERR(priv, "Firmware has old API version. Expected v%u, " |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1422 | "got v%u. New firmware can be obtained " |
| 1423 | "from http://www.intellinuxwireless.org.\n", |
| 1424 | api_max, api_ver); |
| 1425 | |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 1426 | IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n", |
| 1427 | IWL_UCODE_MAJOR(priv->ucode_ver), |
| 1428 | IWL_UCODE_MINOR(priv->ucode_ver), |
| 1429 | IWL_UCODE_API(priv->ucode_ver), |
| 1430 | IWL_UCODE_SERIAL(priv->ucode_ver)); |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1431 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1432 | IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 1433 | priv->ucode_ver); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1434 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1435 | inst_size); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1436 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1437 | data_size); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1438 | IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1439 | init_size); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1440 | IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1441 | init_data_size); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1442 | IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1443 | boot_size); |
| 1444 | |
| 1445 | /* Verify size of file vs. image size info in file's header */ |
| 1446 | if (ucode_raw->size < sizeof(*ucode) + |
| 1447 | inst_size + data_size + init_size + |
| 1448 | init_data_size + boot_size) { |
| 1449 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1450 | IWL_DEBUG_INFO(priv, "uCode file size %d too small\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1451 | (int)ucode_raw->size); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1452 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1453 | goto err_release; |
| 1454 | } |
| 1455 | |
| 1456 | /* Verify that uCode images will fit in card's SRAM */ |
Ron Rindjunsky | 099b40b | 2008-04-21 15:41:53 -0700 | [diff] [blame] | 1457 | if (inst_size > priv->hw_params.max_inst_size) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1458 | IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1459 | inst_size); |
| 1460 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1461 | goto err_release; |
| 1462 | } |
| 1463 | |
Ron Rindjunsky | 099b40b | 2008-04-21 15:41:53 -0700 | [diff] [blame] | 1464 | if (data_size > priv->hw_params.max_data_size) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1465 | IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1466 | data_size); |
| 1467 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1468 | goto err_release; |
| 1469 | } |
Ron Rindjunsky | 099b40b | 2008-04-21 15:41:53 -0700 | [diff] [blame] | 1470 | if (init_size > priv->hw_params.max_inst_size) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1471 | IWL_INFO(priv, "uCode init instr len %d too large to fit in\n", |
| 1472 | init_size); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1473 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1474 | goto err_release; |
| 1475 | } |
Ron Rindjunsky | 099b40b | 2008-04-21 15:41:53 -0700 | [diff] [blame] | 1476 | if (init_data_size > priv->hw_params.max_data_size) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1477 | IWL_INFO(priv, "uCode init data len %d too large to fit in\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1478 | init_data_size); |
| 1479 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1480 | goto err_release; |
| 1481 | } |
Ron Rindjunsky | 099b40b | 2008-04-21 15:41:53 -0700 | [diff] [blame] | 1482 | if (boot_size > priv->hw_params.max_bsm_size) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1483 | IWL_INFO(priv, "uCode boot instr len %d too large to fit in\n", |
| 1484 | boot_size); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1485 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1486 | goto err_release; |
| 1487 | } |
| 1488 | |
| 1489 | /* Allocate ucode buffers for card's bus-master loading ... */ |
| 1490 | |
| 1491 | /* Runtime instructions and 2 copies of data: |
| 1492 | * 1) unmodified from disk |
| 1493 | * 2) backup cache for save/restore during power-downs */ |
| 1494 | priv->ucode_code.len = inst_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 1495 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1496 | |
| 1497 | priv->ucode_data.len = data_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 1498 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1499 | |
| 1500 | priv->ucode_data_backup.len = data_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 1501 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1502 | |
Zhu, Yi | 1f304e4 | 2009-01-23 13:45:22 -0800 | [diff] [blame] | 1503 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
| 1504 | !priv->ucode_data_backup.v_addr) |
| 1505 | goto err_pci_alloc; |
| 1506 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1507 | /* Initialization instructions and data */ |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1508 | if (init_size && init_data_size) { |
| 1509 | priv->ucode_init.len = init_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 1510 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1511 | |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1512 | priv->ucode_init_data.len = init_data_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 1513 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1514 | |
| 1515 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) |
| 1516 | goto err_pci_alloc; |
| 1517 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1518 | |
| 1519 | /* Bootstrap (instructions only, no data) */ |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1520 | if (boot_size) { |
| 1521 | priv->ucode_boot.len = boot_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 1522 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1523 | |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1524 | if (!priv->ucode_boot.v_addr) |
| 1525 | goto err_pci_alloc; |
| 1526 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1527 | |
| 1528 | /* Copy images into buffers for card's bus-master reads ... */ |
| 1529 | |
| 1530 | /* Runtime instructions (first block of data in file) */ |
| 1531 | src = &ucode->data[0]; |
| 1532 | len = priv->ucode_code.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1533 | IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode instr len %Zd\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1534 | memcpy(priv->ucode_code.v_addr, src, len); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1535 | IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1536 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); |
| 1537 | |
| 1538 | /* Runtime data (2nd block) |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1539 | * NOTE: Copy into backup buffer will be done in iwl_up() */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1540 | src = &ucode->data[inst_size]; |
| 1541 | len = priv->ucode_data.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1542 | IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode data len %Zd\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1543 | memcpy(priv->ucode_data.v_addr, src, len); |
| 1544 | memcpy(priv->ucode_data_backup.v_addr, src, len); |
| 1545 | |
| 1546 | /* Initialization instructions (3rd block) */ |
| 1547 | if (init_size) { |
| 1548 | src = &ucode->data[inst_size + data_size]; |
| 1549 | len = priv->ucode_init.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1550 | IWL_DEBUG_INFO(priv, "Copying (but not loading) init instr len %Zd\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1551 | len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1552 | memcpy(priv->ucode_init.v_addr, src, len); |
| 1553 | } |
| 1554 | |
| 1555 | /* Initialization data (4th block) */ |
| 1556 | if (init_data_size) { |
| 1557 | src = &ucode->data[inst_size + data_size + init_size]; |
| 1558 | len = priv->ucode_init_data.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1559 | IWL_DEBUG_INFO(priv, "Copying (but not loading) init data len %Zd\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1560 | len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1561 | memcpy(priv->ucode_init_data.v_addr, src, len); |
| 1562 | } |
| 1563 | |
| 1564 | /* Bootstrap instructions (5th block) */ |
| 1565 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; |
| 1566 | len = priv->ucode_boot.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1567 | IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1568 | memcpy(priv->ucode_boot.v_addr, src, len); |
| 1569 | |
| 1570 | /* We have our copies now, allow OS release its copies */ |
| 1571 | release_firmware(ucode_raw); |
| 1572 | return 0; |
| 1573 | |
| 1574 | err_pci_alloc: |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1575 | IWL_ERR(priv, "failed to allocate pci memory\n"); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1576 | ret = -ENOMEM; |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1577 | iwl_dealloc_ucode_pci(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1578 | |
| 1579 | err_release: |
| 1580 | release_firmware(ucode_raw); |
| 1581 | |
| 1582 | error: |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 1583 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1584 | } |
| 1585 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1586 | /** |
Tomas Winkler | 4a4a9e8 | 2008-05-29 16:34:54 +0800 | [diff] [blame] | 1587 | * iwl_alive_start - called after REPLY_ALIVE notification received |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1588 | * from protocol/runtime uCode (initialization uCode's |
Tomas Winkler | 4a4a9e8 | 2008-05-29 16:34:54 +0800 | [diff] [blame] | 1589 | * Alive gets handled by iwl_init_alive_start()). |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1590 | */ |
Tomas Winkler | 4a4a9e8 | 2008-05-29 16:34:54 +0800 | [diff] [blame] | 1591 | static void iwl_alive_start(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1592 | { |
Tomas Winkler | 57aab75 | 2008-04-14 21:16:03 -0700 | [diff] [blame] | 1593 | int ret = 0; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1594 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1595 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1596 | |
| 1597 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { |
| 1598 | /* We had an error bringing up the hardware, so take it |
| 1599 | * all the way back down so we can try again */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1600 | IWL_DEBUG_INFO(priv, "Alive failed.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1601 | goto restart; |
| 1602 | } |
| 1603 | |
| 1604 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. |
| 1605 | * This is a paranoid check, because we would not have gotten the |
| 1606 | * "runtime" alive if code weren't properly loaded. */ |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 1607 | if (iwl_verify_ucode(priv)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1608 | /* Runtime instruction load was bad; |
| 1609 | * take it all the way back down so we can try again */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1610 | IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1611 | goto restart; |
| 1612 | } |
| 1613 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1614 | iwl_clear_stations_table(priv); |
Tomas Winkler | 57aab75 | 2008-04-14 21:16:03 -0700 | [diff] [blame] | 1615 | ret = priv->cfg->ops->lib->alive_notify(priv); |
| 1616 | if (ret) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 1617 | IWL_WARN(priv, |
| 1618 | "Could not complete ALIVE transition [ntf]: %d\n", ret); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1619 | goto restart; |
| 1620 | } |
| 1621 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1622 | /* After the ALIVE response, we can send host commands to the uCode */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1623 | set_bit(STATUS_ALIVE, &priv->status); |
| 1624 | |
Tomas Winkler | fee1247 | 2008-04-03 16:05:21 -0700 | [diff] [blame] | 1625 | if (iwl_is_rfkill(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1626 | return; |
| 1627 | |
Johannes Berg | 36d6825 | 2008-05-15 12:55:26 +0200 | [diff] [blame] | 1628 | ieee80211_wake_queues(priv->hw); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1629 | |
| 1630 | priv->active_rate = priv->rates_mask; |
| 1631 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; |
| 1632 | |
Tomas Winkler | 3109ece | 2008-03-28 16:33:35 -0700 | [diff] [blame] | 1633 | if (iwl_is_associated(priv)) { |
Gregory Greenman | c1adf9f | 2008-05-15 13:53:59 +0800 | [diff] [blame] | 1634 | struct iwl_rxon_cmd *active_rxon = |
| 1635 | (struct iwl_rxon_cmd *)&priv->active_rxon; |
Mohamed Abbas | 019fb97 | 2009-03-17 21:59:18 -0700 | [diff] [blame] | 1636 | /* apply any changes in staging */ |
| 1637 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1638 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 1639 | } else { |
| 1640 | /* Initialize our rx_config data */ |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1641 | iwl_connection_init_rx_config(priv, priv->iw_mode); |
Abhijeet Kolekar | 4582353 | 2009-04-08 11:26:44 -0700 | [diff] [blame] | 1642 | |
| 1643 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
| 1644 | priv->cfg->ops->hcmd->set_rxon_chain(priv); |
| 1645 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1646 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
| 1647 | } |
| 1648 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1649 | /* Configure Bluetooth device coexistence support */ |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1650 | iwl_send_bt_config(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1651 | |
Tomas Winkler | 4a4a9e8 | 2008-05-29 16:34:54 +0800 | [diff] [blame] | 1652 | iwl_reset_run_time_calib(priv); |
| 1653 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1654 | /* Configure the adapter for unassociated operation */ |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1655 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1656 | |
| 1657 | /* At this point, the NIC is initialized and operational */ |
Emmanuel Grumbach | 47f4a58 | 2008-06-12 09:47:13 +0800 | [diff] [blame] | 1658 | iwl_rf_kill_ct_config(priv); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 1659 | |
Reinette Chatre | fe00b5a | 2008-04-03 16:05:23 -0700 | [diff] [blame] | 1660 | iwl_leds_register(priv); |
| 1661 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1662 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
Rick Farrington | a9f4678 | 2008-03-18 14:57:49 -0700 | [diff] [blame] | 1663 | set_bit(STATUS_READY, &priv->status); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 1664 | wake_up_interruptible(&priv->wait_command_queue); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1665 | |
Emmanuel Grumbach | 58d0f36 | 2008-06-12 09:47:19 +0800 | [diff] [blame] | 1666 | iwl_power_update_mode(priv, 1); |
Assaf Krauss | c46fbef | 2008-06-12 09:47:05 +0800 | [diff] [blame] | 1667 | |
Mohamed Abbas | ada1751 | 2008-11-07 09:58:34 -0800 | [diff] [blame] | 1668 | /* reassociate for ADHOC mode */ |
| 1669 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { |
| 1670 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, |
| 1671 | priv->vif); |
| 1672 | if (beacon) |
| 1673 | iwl_mac_beacon_update(priv->hw, beacon); |
| 1674 | } |
| 1675 | |
| 1676 | |
Assaf Krauss | c46fbef | 2008-06-12 09:47:05 +0800 | [diff] [blame] | 1677 | if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status)) |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1678 | iwl_set_mode(priv, priv->iw_mode); |
Assaf Krauss | c46fbef | 2008-06-12 09:47:05 +0800 | [diff] [blame] | 1679 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1680 | return; |
| 1681 | |
| 1682 | restart: |
| 1683 | queue_work(priv->workqueue, &priv->restart); |
| 1684 | } |
| 1685 | |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 1686 | static void iwl_cancel_deferred_work(struct iwl_priv *priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1687 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1688 | static void __iwl_down(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1689 | { |
| 1690 | unsigned long flags; |
| 1691 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1692 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1693 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1694 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1695 | if (!exit_pending) |
| 1696 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
| 1697 | |
Mohamed Abbas | ab53d8a | 2008-03-25 16:33:36 -0700 | [diff] [blame] | 1698 | iwl_leds_unregister(priv); |
| 1699 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1700 | iwl_clear_stations_table(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1701 | |
| 1702 | /* Unblock any waiting calls */ |
| 1703 | wake_up_interruptible_all(&priv->wait_command_queue); |
| 1704 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1705 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
| 1706 | * exiting the module */ |
| 1707 | if (!exit_pending) |
| 1708 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
| 1709 | |
| 1710 | /* stop and reset the on-board processor */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 1711 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1712 | |
| 1713 | /* tell the device to stop sending interrupts */ |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 1714 | spin_lock_irqsave(&priv->lock, flags); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1715 | iwl_disable_interrupts(priv); |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 1716 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1717 | iwl_synchronize_irq(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1718 | |
| 1719 | if (priv->mac80211_registered) |
| 1720 | ieee80211_stop_queues(priv->hw); |
| 1721 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1722 | /* If we have not previously called iwl_init() then |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 1723 | * clear all bits but the RF Kill bit and return */ |
Tomas Winkler | fee1247 | 2008-04-03 16:05:21 -0700 | [diff] [blame] | 1724 | if (!iwl_is_init(priv)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1725 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
| 1726 | STATUS_RF_KILL_HW | |
Reinette Chatre | 9788864 | 2008-02-06 11:20:38 -0800 | [diff] [blame] | 1727 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
| 1728 | STATUS_GEO_CONFIGURED | |
Mohamed Abbas | 052ec3f | 2008-06-30 17:23:15 +0800 | [diff] [blame] | 1729 | test_bit(STATUS_EXIT_PENDING, &priv->status) << |
| 1730 | STATUS_EXIT_PENDING; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1731 | goto exit; |
| 1732 | } |
| 1733 | |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1734 | /* ...otherwise clear out all the status bits but the RF Kill |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 1735 | * bit and continue taking the NIC down. */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1736 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << |
| 1737 | STATUS_RF_KILL_HW | |
Reinette Chatre | 9788864 | 2008-02-06 11:20:38 -0800 | [diff] [blame] | 1738 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
| 1739 | STATUS_GEO_CONFIGURED | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1740 | test_bit(STATUS_FW_ERROR, &priv->status) << |
Mohamed Abbas | 052ec3f | 2008-06-30 17:23:15 +0800 | [diff] [blame] | 1741 | STATUS_FW_ERROR | |
| 1742 | test_bit(STATUS_EXIT_PENDING, &priv->status) << |
| 1743 | STATUS_EXIT_PENDING; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1744 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1745 | /* device going down, Stop using ICT table */ |
| 1746 | iwl_disable_ict(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1747 | spin_lock_irqsave(&priv->lock, flags); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 1748 | iwl_clear_bit(priv, CSR_GP_CNTRL, |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1749 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1750 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1751 | |
Tomas Winkler | da1bc45 | 2008-05-29 16:35:00 +0800 | [diff] [blame] | 1752 | iwl_txq_ctx_stop(priv); |
Tomas Winkler | b3bbacb | 2008-05-29 16:35:01 +0800 | [diff] [blame] | 1753 | iwl_rxq_stop(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1754 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 1755 | iwl_write_prph(priv, APMG_CLK_DIS_REG, |
| 1756 | APMG_CLK_VAL_DMA_CLK_RQT); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1757 | |
| 1758 | udelay(5); |
| 1759 | |
Tomas Winkler | 7f06610 | 2008-05-29 16:34:57 +0800 | [diff] [blame] | 1760 | /* FIXME: apm_ops.suspend(priv) */ |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1761 | if (exit_pending) |
Gregory Greenman | d535311 | 2008-09-03 11:18:49 +0800 | [diff] [blame] | 1762 | priv->cfg->ops->lib->apm_ops.stop(priv); |
| 1763 | else |
| 1764 | priv->cfg->ops->lib->apm_ops.reset(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1765 | exit: |
Tomas Winkler | 885ba20 | 2008-05-29 16:34:55 +0800 | [diff] [blame] | 1766 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1767 | |
| 1768 | if (priv->ibss_beacon) |
| 1769 | dev_kfree_skb(priv->ibss_beacon); |
| 1770 | priv->ibss_beacon = NULL; |
| 1771 | |
| 1772 | /* clear out any free frames */ |
Tomas Winkler | fcab423 | 2008-05-15 13:54:01 +0800 | [diff] [blame] | 1773 | iwl_clear_free_frames(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1774 | } |
| 1775 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1776 | static void iwl_down(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1777 | { |
| 1778 | mutex_lock(&priv->mutex); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1779 | __iwl_down(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1780 | mutex_unlock(&priv->mutex); |
Zhu Yi | b24d22b | 2007-12-19 13:59:52 +0800 | [diff] [blame] | 1781 | |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 1782 | iwl_cancel_deferred_work(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1783 | } |
| 1784 | |
Mohamed Abbas | 086ed11 | 2009-05-22 11:01:54 -0700 | [diff] [blame] | 1785 | #define HW_READY_TIMEOUT (50) |
| 1786 | |
| 1787 | static int iwl_set_hw_ready(struct iwl_priv *priv) |
| 1788 | { |
| 1789 | int ret = 0; |
| 1790 | |
| 1791 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
| 1792 | CSR_HW_IF_CONFIG_REG_BIT_NIC_READY); |
| 1793 | |
| 1794 | /* See if we got it */ |
| 1795 | ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, |
| 1796 | CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, |
| 1797 | CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, |
| 1798 | HW_READY_TIMEOUT); |
| 1799 | if (ret != -ETIMEDOUT) |
| 1800 | priv->hw_ready = true; |
| 1801 | else |
| 1802 | priv->hw_ready = false; |
| 1803 | |
| 1804 | IWL_DEBUG_INFO(priv, "hardware %s\n", |
| 1805 | (priv->hw_ready == 1) ? "ready" : "not ready"); |
| 1806 | return ret; |
| 1807 | } |
| 1808 | |
| 1809 | static int iwl_prepare_card_hw(struct iwl_priv *priv) |
| 1810 | { |
| 1811 | int ret = 0; |
| 1812 | |
| 1813 | IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter \n"); |
| 1814 | |
| 1815 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
| 1816 | CSR_HW_IF_CONFIG_REG_PREPARE); |
| 1817 | |
| 1818 | ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, |
| 1819 | ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, |
| 1820 | CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000); |
| 1821 | |
| 1822 | if (ret != -ETIMEDOUT) |
| 1823 | iwl_set_hw_ready(priv); |
| 1824 | |
| 1825 | return ret; |
| 1826 | } |
| 1827 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1828 | #define MAX_HW_RESTARTS 5 |
| 1829 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1830 | static int __iwl_up(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1831 | { |
Tomas Winkler | 57aab75 | 2008-04-14 21:16:03 -0700 | [diff] [blame] | 1832 | int i; |
| 1833 | int ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1834 | |
| 1835 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 1836 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1837 | return -EIO; |
| 1838 | } |
| 1839 | |
Reinette Chatre | e903fbd | 2008-01-30 22:05:15 -0800 | [diff] [blame] | 1840 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1841 | IWL_ERR(priv, "ucode not available for device bringup\n"); |
Reinette Chatre | e903fbd | 2008-01-30 22:05:15 -0800 | [diff] [blame] | 1842 | return -EIO; |
| 1843 | } |
| 1844 | |
Mohamed Abbas | 086ed11 | 2009-05-22 11:01:54 -0700 | [diff] [blame] | 1845 | iwl_prepare_card_hw(priv); |
| 1846 | |
| 1847 | if (!priv->hw_ready) { |
| 1848 | IWL_WARN(priv, "Exit HW not ready\n"); |
| 1849 | return -EIO; |
| 1850 | } |
| 1851 | |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 1852 | /* If platform's RF_KILL switch is NOT set to KILL */ |
Tomas Winkler | c1842d6 | 2008-08-04 16:00:43 +0800 | [diff] [blame] | 1853 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 1854 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
Emmanuel Grumbach | 3bff19c | 2008-06-30 17:23:19 +0800 | [diff] [blame] | 1855 | else |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 1856 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
Emmanuel Grumbach | 3bff19c | 2008-06-30 17:23:19 +0800 | [diff] [blame] | 1857 | |
Tomas Winkler | c1842d6 | 2008-08-04 16:00:43 +0800 | [diff] [blame] | 1858 | if (iwl_is_rfkill(priv)) { |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 1859 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, true); |
| 1860 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1861 | iwl_enable_interrupts(priv); |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 1862 | IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n"); |
Tomas Winkler | c1842d6 | 2008-08-04 16:00:43 +0800 | [diff] [blame] | 1863 | return 0; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1864 | } |
| 1865 | |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 1866 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1867 | |
Ron Rindjunsky | 1053d35 | 2008-05-05 10:22:43 +0800 | [diff] [blame] | 1868 | ret = iwl_hw_nic_init(priv); |
Tomas Winkler | 57aab75 | 2008-04-14 21:16:03 -0700 | [diff] [blame] | 1869 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1870 | IWL_ERR(priv, "Unable to init nic\n"); |
Tomas Winkler | 57aab75 | 2008-04-14 21:16:03 -0700 | [diff] [blame] | 1871 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1872 | } |
| 1873 | |
| 1874 | /* make sure rfkill handshake bits are cleared */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 1875 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
| 1876 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1877 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
| 1878 | |
| 1879 | /* clear (again), then enable host interrupts */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 1880 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1881 | iwl_enable_interrupts(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1882 | |
| 1883 | /* really make sure rfkill handshake bits are cleared */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 1884 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
| 1885 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1886 | |
| 1887 | /* Copy original ucode data image from disk into backup cache. |
| 1888 | * This will be used to initialize the on-board processor's |
| 1889 | * data SRAM for a clean start when the runtime program first loads. */ |
| 1890 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 1891 | priv->ucode_data.len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1892 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1893 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
| 1894 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1895 | iwl_clear_stations_table(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1896 | |
| 1897 | /* load bootstrap state machine, |
| 1898 | * load bootstrap program into processor's memory, |
| 1899 | * prepare to load the "initialize" uCode */ |
Tomas Winkler | 57aab75 | 2008-04-14 21:16:03 -0700 | [diff] [blame] | 1900 | ret = priv->cfg->ops->lib->load_ucode(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1901 | |
Tomas Winkler | 57aab75 | 2008-04-14 21:16:03 -0700 | [diff] [blame] | 1902 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1903 | IWL_ERR(priv, "Unable to set up bootstrap uCode: %d\n", |
| 1904 | ret); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1905 | continue; |
| 1906 | } |
| 1907 | |
| 1908 | /* start card; "initialize" will load runtime ucode */ |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1909 | iwl_nic_start(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1910 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1911 | IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1912 | |
| 1913 | return 0; |
| 1914 | } |
| 1915 | |
| 1916 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1917 | __iwl_down(priv); |
Mohamed Abbas | 64e72c3 | 2008-06-12 09:47:03 +0800 | [diff] [blame] | 1918 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1919 | |
| 1920 | /* tried to restart and config the device for as long as our |
| 1921 | * patience could withstand */ |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1922 | IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1923 | return -EIO; |
| 1924 | } |
| 1925 | |
| 1926 | |
| 1927 | /***************************************************************************** |
| 1928 | * |
| 1929 | * Workqueue callbacks |
| 1930 | * |
| 1931 | *****************************************************************************/ |
| 1932 | |
Tomas Winkler | 4a4a9e8 | 2008-05-29 16:34:54 +0800 | [diff] [blame] | 1933 | static void iwl_bg_init_alive_start(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1934 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 1935 | struct iwl_priv *priv = |
| 1936 | container_of(data, struct iwl_priv, init_alive_start.work); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1937 | |
| 1938 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 1939 | return; |
| 1940 | |
| 1941 | mutex_lock(&priv->mutex); |
Emmanuel Grumbach | f3ccc08 | 2008-05-05 10:22:45 +0800 | [diff] [blame] | 1942 | priv->cfg->ops->lib->init_alive_start(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1943 | mutex_unlock(&priv->mutex); |
| 1944 | } |
| 1945 | |
Tomas Winkler | 4a4a9e8 | 2008-05-29 16:34:54 +0800 | [diff] [blame] | 1946 | static void iwl_bg_alive_start(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1947 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 1948 | struct iwl_priv *priv = |
| 1949 | container_of(data, struct iwl_priv, alive_start.work); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1950 | |
| 1951 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 1952 | return; |
| 1953 | |
Mohamed Abbas | 258c44a | 2009-06-03 11:44:10 -0700 | [diff] [blame] | 1954 | /* enable dram interrupt */ |
| 1955 | iwl_reset_ict(priv); |
| 1956 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1957 | mutex_lock(&priv->mutex); |
Tomas Winkler | 4a4a9e8 | 2008-05-29 16:34:54 +0800 | [diff] [blame] | 1958 | iwl_alive_start(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1959 | mutex_unlock(&priv->mutex); |
| 1960 | } |
| 1961 | |
Emmanuel Grumbach | 16e727e | 2008-06-12 09:46:52 +0800 | [diff] [blame] | 1962 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
| 1963 | { |
| 1964 | struct iwl_priv *priv = container_of(work, struct iwl_priv, |
| 1965 | run_time_calib_work); |
| 1966 | |
| 1967 | mutex_lock(&priv->mutex); |
| 1968 | |
| 1969 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
| 1970 | test_bit(STATUS_SCANNING, &priv->status)) { |
| 1971 | mutex_unlock(&priv->mutex); |
| 1972 | return; |
| 1973 | } |
| 1974 | |
| 1975 | if (priv->start_calib) { |
| 1976 | iwl_chain_noise_calibration(priv, &priv->statistics); |
| 1977 | |
| 1978 | iwl_sensitivity_calibration(priv, &priv->statistics); |
| 1979 | } |
| 1980 | |
| 1981 | mutex_unlock(&priv->mutex); |
| 1982 | return; |
| 1983 | } |
| 1984 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1985 | static void iwl_bg_up(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1986 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 1987 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1988 | |
| 1989 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 1990 | return; |
| 1991 | |
| 1992 | mutex_lock(&priv->mutex); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1993 | __iwl_up(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1994 | mutex_unlock(&priv->mutex); |
| 1995 | } |
| 1996 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 1997 | static void iwl_bg_restart(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1998 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 1999 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2000 | |
| 2001 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 2002 | return; |
| 2003 | |
Johannes Berg | 19cc108 | 2009-05-08 13:44:36 -0700 | [diff] [blame] | 2004 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { |
| 2005 | mutex_lock(&priv->mutex); |
| 2006 | priv->vif = NULL; |
| 2007 | priv->is_open = 0; |
| 2008 | mutex_unlock(&priv->mutex); |
| 2009 | iwl_down(priv); |
| 2010 | ieee80211_restart_hw(priv->hw); |
| 2011 | } else { |
| 2012 | iwl_down(priv); |
| 2013 | queue_work(priv->workqueue, &priv->up); |
| 2014 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2015 | } |
| 2016 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2017 | static void iwl_bg_rx_replenish(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2018 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 2019 | struct iwl_priv *priv = |
| 2020 | container_of(data, struct iwl_priv, rx_replenish); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2021 | |
| 2022 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 2023 | return; |
| 2024 | |
| 2025 | mutex_lock(&priv->mutex); |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 2026 | iwl_rx_replenish(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2027 | mutex_unlock(&priv->mutex); |
| 2028 | } |
| 2029 | |
Mohamed Abbas | 7878a5a | 2007-11-29 11:10:13 +0800 | [diff] [blame] | 2030 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
| 2031 | |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2032 | void iwl_post_associate(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2033 | { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2034 | struct ieee80211_conf *conf = NULL; |
Tomas Winkler | 857485c | 2008-03-21 13:53:44 -0700 | [diff] [blame] | 2035 | int ret = 0; |
Emmanuel Grumbach | 1ff50bd | 2008-07-11 11:53:34 +0800 | [diff] [blame] | 2036 | unsigned long flags; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2037 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2038 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2039 | IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2040 | return; |
| 2041 | } |
| 2042 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2043 | IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 2044 | priv->assoc_id, priv->active_rxon.bssid_addr); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2045 | |
| 2046 | |
| 2047 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 2048 | return; |
| 2049 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2050 | |
Reinette Chatre | 508e32e | 2008-04-14 21:16:13 -0700 | [diff] [blame] | 2051 | if (!priv->vif || !priv->is_open) |
Mohamed Abbas | 948c171 | 2007-10-25 17:15:45 +0800 | [diff] [blame] | 2052 | return; |
Reinette Chatre | 508e32e | 2008-04-14 21:16:13 -0700 | [diff] [blame] | 2053 | |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 2054 | iwl_scan_cancel_timeout(priv, 200); |
mabbas | 052c4b9 | 2007-10-25 17:15:43 +0800 | [diff] [blame] | 2055 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2056 | conf = ieee80211_get_hw_conf(priv->hw); |
| 2057 | |
| 2058 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 2059 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2060 | |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 2061 | iwl_setup_rxon_timing(priv); |
Tomas Winkler | 857485c | 2008-03-21 13:53:44 -0700 | [diff] [blame] | 2062 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2063 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
Tomas Winkler | 857485c | 2008-03-21 13:53:44 -0700 | [diff] [blame] | 2064 | if (ret) |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 2065 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2066 | "Attempting to continue.\n"); |
| 2067 | |
| 2068 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
| 2069 | |
Emmanuel Grumbach | 42eb7c6 | 2008-09-17 10:10:05 +0800 | [diff] [blame] | 2070 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
Ron Rindjunsky | 4f85f5b | 2008-06-09 22:54:35 +0300 | [diff] [blame] | 2071 | |
Abhijeet Kolekar | 4582353 | 2009-04-08 11:26:44 -0700 | [diff] [blame] | 2072 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
| 2073 | priv->cfg->ops->hcmd->set_rxon_chain(priv); |
| 2074 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2075 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
| 2076 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2077 | IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2078 | priv->assoc_id, priv->beacon_int); |
| 2079 | |
| 2080 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) |
| 2081 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2082 | else |
| 2083 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2084 | |
| 2085 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
| 2086 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
| 2087 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; |
| 2088 | else |
| 2089 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
| 2090 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2091 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2092 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
| 2093 | |
| 2094 | } |
| 2095 | |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 2096 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2097 | |
| 2098 | switch (priv->iw_mode) { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2099 | case NL80211_IFTYPE_STATION: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2100 | break; |
| 2101 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2102 | case NL80211_IFTYPE_ADHOC: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2103 | |
Assaf Krauss | c46fbef | 2008-06-12 09:47:05 +0800 | [diff] [blame] | 2104 | /* assume default assoc id */ |
| 2105 | priv->assoc_id = 1; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2106 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 2107 | iwl_rxon_add_station(priv, priv->bssid, 0); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2108 | iwl_send_beacon_cmd(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2109 | |
| 2110 | break; |
| 2111 | |
| 2112 | default: |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2113 | IWL_ERR(priv, "%s Should not be called in %d mode\n", |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 2114 | __func__, priv->iw_mode); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2115 | break; |
| 2116 | } |
| 2117 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2118 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2119 | priv->assoc_station_added = 1; |
| 2120 | |
Emmanuel Grumbach | 1ff50bd | 2008-07-11 11:53:34 +0800 | [diff] [blame] | 2121 | spin_lock_irqsave(&priv->lock, flags); |
| 2122 | iwl_activate_qos(priv, 0); |
| 2123 | spin_unlock_irqrestore(&priv->lock, flags); |
Ron Rindjunsky | 292ae17 | 2008-02-06 11:20:39 -0800 | [diff] [blame] | 2124 | |
Grumbach, Emmanuel | 0481644 | 2008-09-03 11:26:53 +0800 | [diff] [blame] | 2125 | /* the chain noise calibration will enabled PM upon completion |
| 2126 | * If chain noise has already been run, then we need to enable |
| 2127 | * power management here */ |
| 2128 | if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) |
Johannes Berg | 7af2c46 | 2009-05-08 13:44:38 -0700 | [diff] [blame] | 2129 | iwl_power_update_mode(priv, 0); |
Emmanuel Grumbach | c90a74ba | 2008-09-03 11:26:50 +0800 | [diff] [blame] | 2130 | |
| 2131 | /* Enable Rx differential gain and sensitivity calibrations */ |
| 2132 | iwl_chain_noise_reset(priv); |
| 2133 | priv->start_calib = 1; |
| 2134 | |
Reinette Chatre | 508e32e | 2008-04-14 21:16:13 -0700 | [diff] [blame] | 2135 | } |
| 2136 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2137 | /***************************************************************************** |
| 2138 | * |
| 2139 | * mac80211 entry point functions |
| 2140 | * |
| 2141 | *****************************************************************************/ |
| 2142 | |
Emmanuel Grumbach | 154b25c | 2008-06-30 17:23:24 +0800 | [diff] [blame] | 2143 | #define UCODE_READY_TIMEOUT (4 * HZ) |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2144 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2145 | static int iwl_mac_start(struct ieee80211_hw *hw) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2146 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 2147 | struct iwl_priv *priv = hw->priv; |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2148 | int ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2149 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2150 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2151 | |
| 2152 | /* we should be verifying the device is ready to be opened */ |
| 2153 | mutex_lock(&priv->mutex); |
| 2154 | |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2155 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
| 2156 | * ucode filename and max sizes are card-specific. */ |
| 2157 | |
| 2158 | if (!priv->ucode_code.len) { |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2159 | ret = iwl_read_ucode(priv); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2160 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2161 | IWL_ERR(priv, "Could not read microcode: %d\n", ret); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2162 | mutex_unlock(&priv->mutex); |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 2163 | return ret; |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2164 | } |
| 2165 | } |
| 2166 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2167 | ret = __iwl_up(priv); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2168 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2169 | mutex_unlock(&priv->mutex); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2170 | |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 2171 | if (ret) |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 2172 | return ret; |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 2173 | |
Tomas Winkler | c1842d6 | 2008-08-04 16:00:43 +0800 | [diff] [blame] | 2174 | if (iwl_is_rfkill(priv)) |
| 2175 | goto out; |
| 2176 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2177 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 2178 | |
Ron Rindjunsky | fe9b6b7 | 2008-05-29 16:35:06 +0800 | [diff] [blame] | 2179 | /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2180 | * mac80211 will not be run successfully. */ |
Emmanuel Grumbach | 154b25c | 2008-06-30 17:23:24 +0800 | [diff] [blame] | 2181 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, |
| 2182 | test_bit(STATUS_READY, &priv->status), |
| 2183 | UCODE_READY_TIMEOUT); |
| 2184 | if (!ret) { |
| 2185 | if (!test_bit(STATUS_READY, &priv->status)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2186 | IWL_ERR(priv, "START_ALIVE timeout after %dms.\n", |
Emmanuel Grumbach | 154b25c | 2008-06-30 17:23:24 +0800 | [diff] [blame] | 2187 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 2188 | return -ETIMEDOUT; |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2189 | } |
Ron Rindjunsky | fe9b6b7 | 2008-05-29 16:35:06 +0800 | [diff] [blame] | 2190 | } |
Tomas Winkler | 0a078ff | 2008-06-30 17:23:26 +0800 | [diff] [blame] | 2191 | |
Tomas Winkler | c1842d6 | 2008-08-04 16:00:43 +0800 | [diff] [blame] | 2192 | out: |
Tomas Winkler | 0a078ff | 2008-06-30 17:23:26 +0800 | [diff] [blame] | 2193 | priv->is_open = 1; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2194 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2195 | return 0; |
| 2196 | } |
| 2197 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2198 | static void iwl_mac_stop(struct ieee80211_hw *hw) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2199 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 2200 | struct iwl_priv *priv = hw->priv; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2201 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2202 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Mohamed Abbas | 948c171 | 2007-10-25 17:15:45 +0800 | [diff] [blame] | 2203 | |
Johannes Berg | 19cc108 | 2009-05-08 13:44:36 -0700 | [diff] [blame] | 2204 | if (!priv->is_open) |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 2205 | return; |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 2206 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2207 | priv->is_open = 0; |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2208 | |
Tomas Winkler | fee1247 | 2008-04-03 16:05:21 -0700 | [diff] [blame] | 2209 | if (iwl_is_ready_rf(priv)) { |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 2210 | /* stop mac, cancel any scan request and clear |
| 2211 | * RXON_FILTER_ASSOC_MSK BIT |
| 2212 | */ |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2213 | mutex_lock(&priv->mutex); |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 2214 | iwl_scan_cancel_timeout(priv, 100); |
Mohamed Abbas | fde3571 | 2007-11-29 11:10:15 +0800 | [diff] [blame] | 2215 | mutex_unlock(&priv->mutex); |
Mohamed Abbas | fde3571 | 2007-11-29 11:10:15 +0800 | [diff] [blame] | 2216 | } |
| 2217 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2218 | iwl_down(priv); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2219 | |
| 2220 | flush_workqueue(priv->workqueue); |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 2221 | |
| 2222 | /* enable interrupts again in order to receive rfkill changes */ |
| 2223 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
| 2224 | iwl_enable_interrupts(priv); |
Mohamed Abbas | 948c171 | 2007-10-25 17:15:45 +0800 | [diff] [blame] | 2225 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2226 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2227 | } |
| 2228 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2229 | static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2230 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 2231 | struct iwl_priv *priv = hw->priv; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2232 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2233 | IWL_DEBUG_MACDUMP(priv, "enter\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2234 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2235 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 2236 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2237 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 2238 | if (iwl_tx_skb(priv, skb)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2239 | dev_kfree_skb_any(skb); |
| 2240 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2241 | IWL_DEBUG_MACDUMP(priv, "leave\n"); |
Reinette Chatre | 637f883 | 2009-01-19 15:30:32 -0800 | [diff] [blame] | 2242 | return NETDEV_TX_OK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2243 | } |
| 2244 | |
Abhijeet Kolekar | 60690a6 | 2009-04-08 11:26:49 -0700 | [diff] [blame] | 2245 | void iwl_config_ap(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2246 | { |
Tomas Winkler | 857485c | 2008-03-21 13:53:44 -0700 | [diff] [blame] | 2247 | int ret = 0; |
Emmanuel Grumbach | 1ff50bd | 2008-07-11 11:53:34 +0800 | [diff] [blame] | 2248 | unsigned long flags; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2249 | |
Maarten Lankhorst | d986bcd | 2008-01-23 10:15:16 -0800 | [diff] [blame] | 2250 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2251 | return; |
| 2252 | |
| 2253 | /* The following should be done only at AP bring up */ |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 2254 | if (!iwl_is_associated(priv)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2255 | |
| 2256 | /* RXON - unassoc (to set timing command) */ |
| 2257 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 2258 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2259 | |
| 2260 | /* RXON Timing */ |
Tomas Winkler | 3195c1f | 2008-10-08 09:37:30 +0800 | [diff] [blame] | 2261 | iwl_setup_rxon_timing(priv); |
Tomas Winkler | 857485c | 2008-03-21 13:53:44 -0700 | [diff] [blame] | 2262 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2263 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
Tomas Winkler | 857485c | 2008-03-21 13:53:44 -0700 | [diff] [blame] | 2264 | if (ret) |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 2265 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2266 | "Attempting to continue.\n"); |
| 2267 | |
Abhijeet Kolekar | 4582353 | 2009-04-08 11:26:44 -0700 | [diff] [blame] | 2268 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
| 2269 | priv->cfg->ops->hcmd->set_rxon_chain(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2270 | |
| 2271 | /* FIXME: what should be the assoc_id for AP? */ |
| 2272 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
| 2273 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) |
| 2274 | priv->staging_rxon.flags |= |
| 2275 | RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2276 | else |
| 2277 | priv->staging_rxon.flags &= |
| 2278 | ~RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2279 | |
| 2280 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
| 2281 | if (priv->assoc_capability & |
| 2282 | WLAN_CAPABILITY_SHORT_SLOT_TIME) |
| 2283 | priv->staging_rxon.flags |= |
| 2284 | RXON_FLG_SHORT_SLOT_MSK; |
| 2285 | else |
| 2286 | priv->staging_rxon.flags &= |
| 2287 | ~RXON_FLG_SHORT_SLOT_MSK; |
| 2288 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2289 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2290 | priv->staging_rxon.flags &= |
| 2291 | ~RXON_FLG_SHORT_SLOT_MSK; |
| 2292 | } |
| 2293 | /* restore RXON assoc */ |
| 2294 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 2295 | iwlcore_commit_rxon(priv); |
Emmanuel Grumbach | 1ff50bd | 2008-07-11 11:53:34 +0800 | [diff] [blame] | 2296 | spin_lock_irqsave(&priv->lock, flags); |
| 2297 | iwl_activate_qos(priv, 1); |
| 2298 | spin_unlock_irqrestore(&priv->lock, flags); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 2299 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
Zhu Yi | e1493de | 2007-09-27 11:27:32 +0800 | [diff] [blame] | 2300 | } |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2301 | iwl_send_beacon_cmd(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2302 | |
| 2303 | /* FIXME - we need to add code here to detect a totally new |
| 2304 | * configuration, reset the AP, unassoc, rxon timing, assoc, |
| 2305 | * clear sta table, add BCAST sta... */ |
| 2306 | } |
| 2307 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2308 | static void iwl_mac_update_tkip_key(struct ieee80211_hw *hw, |
Emmanuel Grumbach | ab885f8 | 2008-03-20 15:06:43 +0200 | [diff] [blame] | 2309 | struct ieee80211_key_conf *keyconf, const u8 *addr, |
| 2310 | u32 iv32, u16 *phase1key) |
| 2311 | { |
Emmanuel Grumbach | ab885f8 | 2008-03-20 15:06:43 +0200 | [diff] [blame] | 2312 | |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 2313 | struct iwl_priv *priv = hw->priv; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2314 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Emmanuel Grumbach | ab885f8 | 2008-03-20 15:06:43 +0200 | [diff] [blame] | 2315 | |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 2316 | iwl_update_tkip_key(priv, keyconf, addr, iv32, phase1key); |
Emmanuel Grumbach | ab885f8 | 2008-03-20 15:06:43 +0200 | [diff] [blame] | 2317 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2318 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Emmanuel Grumbach | ab885f8 | 2008-03-20 15:06:43 +0200 | [diff] [blame] | 2319 | } |
| 2320 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2321 | static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 2322 | struct ieee80211_vif *vif, |
| 2323 | struct ieee80211_sta *sta, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2324 | struct ieee80211_key_conf *key) |
| 2325 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 2326 | struct iwl_priv *priv = hw->priv; |
Winkler, Tomas | 4298679 | 2009-01-19 15:30:22 -0800 | [diff] [blame] | 2327 | const u8 *addr; |
| 2328 | int ret; |
| 2329 | u8 sta_id; |
| 2330 | bool is_default_wep_key = false; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2331 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2332 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2333 | |
Ron Rindjunsky | 099b40b | 2008-04-21 15:41:53 -0700 | [diff] [blame] | 2334 | if (priv->hw_params.sw_crypto) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2335 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2336 | return -EOPNOTSUPP; |
| 2337 | } |
Winkler, Tomas | 4298679 | 2009-01-19 15:30:22 -0800 | [diff] [blame] | 2338 | addr = sta ? sta->addr : iwl_bcast_addr; |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 2339 | sta_id = iwl_find_station(priv, addr); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 2340 | if (sta_id == IWL_INVALID_STATION) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2341 | IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 2342 | addr); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 2343 | return -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2344 | |
Emmanuel Grumbach | deb09c4 | 2008-03-19 16:41:41 -0700 | [diff] [blame] | 2345 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2346 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 2347 | mutex_lock(&priv->mutex); |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 2348 | iwl_scan_cancel_timeout(priv, 100); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 2349 | mutex_unlock(&priv->mutex); |
| 2350 | |
| 2351 | /* If we are getting WEP group key and we didn't receive any key mapping |
| 2352 | * so far, we are in legacy wep mode (group key only), otherwise we are |
| 2353 | * in 1X mode. |
| 2354 | * In legacy wep mode, we use another host command to the uCode */ |
Tomas Winkler | 5425e49 | 2008-04-15 16:01:38 -0700 | [diff] [blame] | 2355 | if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id && |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2356 | priv->iw_mode != NL80211_IFTYPE_AP) { |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 2357 | if (cmd == SET_KEY) |
| 2358 | is_default_wep_key = !priv->key_mapping_key; |
| 2359 | else |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 2360 | is_default_wep_key = |
| 2361 | (key->hw_key_idx == HW_KEY_DEFAULT); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 2362 | } |
mabbas | 052c4b9 | 2007-10-25 17:15:43 +0800 | [diff] [blame] | 2363 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2364 | switch (cmd) { |
Emmanuel Grumbach | deb09c4 | 2008-03-19 16:41:41 -0700 | [diff] [blame] | 2365 | case SET_KEY: |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 2366 | if (is_default_wep_key) |
| 2367 | ret = iwl_set_default_wep_key(priv, key); |
Emmanuel Grumbach | deb09c4 | 2008-03-19 16:41:41 -0700 | [diff] [blame] | 2368 | else |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 2369 | ret = iwl_set_dynamic_key(priv, key, sta_id); |
Emmanuel Grumbach | deb09c4 | 2008-03-19 16:41:41 -0700 | [diff] [blame] | 2370 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2371 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2372 | break; |
| 2373 | case DISABLE_KEY: |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 2374 | if (is_default_wep_key) |
| 2375 | ret = iwl_remove_default_wep_key(priv, key); |
Emmanuel Grumbach | deb09c4 | 2008-03-19 16:41:41 -0700 | [diff] [blame] | 2376 | else |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 2377 | ret = iwl_remove_dynamic_key(priv, key, sta_id); |
Emmanuel Grumbach | deb09c4 | 2008-03-19 16:41:41 -0700 | [diff] [blame] | 2378 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2379 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2380 | break; |
| 2381 | default: |
Emmanuel Grumbach | deb09c4 | 2008-03-19 16:41:41 -0700 | [diff] [blame] | 2382 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2383 | } |
| 2384 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2385 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2386 | |
Emmanuel Grumbach | deb09c4 | 2008-03-19 16:41:41 -0700 | [diff] [blame] | 2387 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2388 | } |
| 2389 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2390 | static int iwl_mac_ampdu_action(struct ieee80211_hw *hw, |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 2391 | enum ieee80211_ampdu_mlme_action action, |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 2392 | struct ieee80211_sta *sta, u16 tid, u16 *ssn) |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 2393 | { |
| 2394 | struct iwl_priv *priv = hw->priv; |
Wey-Yi Guy | 5c2207c | 2009-03-17 21:51:43 -0700 | [diff] [blame] | 2395 | int ret; |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 2396 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2397 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 2398 | sta->addr, tid); |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 2399 | |
| 2400 | if (!(priv->cfg->sku & IWL_SKU_N)) |
| 2401 | return -EACCES; |
| 2402 | |
| 2403 | switch (action) { |
| 2404 | case IEEE80211_AMPDU_RX_START: |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2405 | IWL_DEBUG_HT(priv, "start Rx\n"); |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 2406 | return iwl_sta_rx_agg_start(priv, sta->addr, tid, *ssn); |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 2407 | case IEEE80211_AMPDU_RX_STOP: |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2408 | IWL_DEBUG_HT(priv, "stop Rx\n"); |
Wey-Yi Guy | 5c2207c | 2009-03-17 21:51:43 -0700 | [diff] [blame] | 2409 | ret = iwl_sta_rx_agg_stop(priv, sta->addr, tid); |
| 2410 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 2411 | return 0; |
| 2412 | else |
| 2413 | return ret; |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 2414 | case IEEE80211_AMPDU_TX_START: |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2415 | IWL_DEBUG_HT(priv, "start Tx\n"); |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 2416 | return iwl_tx_agg_start(priv, sta->addr, tid, ssn); |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 2417 | case IEEE80211_AMPDU_TX_STOP: |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2418 | IWL_DEBUG_HT(priv, "stop Tx\n"); |
Wey-Yi Guy | 5c2207c | 2009-03-17 21:51:43 -0700 | [diff] [blame] | 2419 | ret = iwl_tx_agg_stop(priv, sta->addr, tid); |
| 2420 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 2421 | return 0; |
| 2422 | else |
| 2423 | return ret; |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 2424 | default: |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2425 | IWL_DEBUG_HT(priv, "unknown\n"); |
Tomas Winkler | d783b06 | 2008-07-18 13:53:02 +0800 | [diff] [blame] | 2426 | return -EINVAL; |
| 2427 | break; |
| 2428 | } |
| 2429 | return 0; |
| 2430 | } |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 2431 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2432 | static int iwl_mac_get_stats(struct ieee80211_hw *hw, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2433 | struct ieee80211_low_level_stats *stats) |
| 2434 | { |
Ester Kummer | bf403db | 2008-05-05 10:22:40 +0800 | [diff] [blame] | 2435 | struct iwl_priv *priv = hw->priv; |
| 2436 | |
| 2437 | priv = hw->priv; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2438 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 2439 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2440 | |
| 2441 | return 0; |
| 2442 | } |
| 2443 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2444 | /***************************************************************************** |
| 2445 | * |
| 2446 | * sysfs attributes |
| 2447 | * |
| 2448 | *****************************************************************************/ |
| 2449 | |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 2450 | #ifdef CONFIG_IWLWIFI_DEBUG |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2451 | |
| 2452 | /* |
| 2453 | * The following adds a new attribute to the sysfs representation |
Wu, Fengguang | c3a739f | 2008-12-17 16:52:29 +0800 | [diff] [blame] | 2454 | * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2455 | * used for controlling the debug level. |
| 2456 | * |
| 2457 | * See the level definitions in iwl for details. |
| 2458 | */ |
| 2459 | |
Ester Kummer | 8cf769c | 2008-05-06 11:05:11 +0800 | [diff] [blame] | 2460 | static ssize_t show_debug_level(struct device *d, |
| 2461 | struct device_attribute *attr, char *buf) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2462 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2463 | struct iwl_priv *priv = dev_get_drvdata(d); |
Ester Kummer | 8cf769c | 2008-05-06 11:05:11 +0800 | [diff] [blame] | 2464 | |
| 2465 | return sprintf(buf, "0x%08X\n", priv->debug_level); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2466 | } |
Ester Kummer | 8cf769c | 2008-05-06 11:05:11 +0800 | [diff] [blame] | 2467 | static ssize_t store_debug_level(struct device *d, |
| 2468 | struct device_attribute *attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2469 | const char *buf, size_t count) |
| 2470 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2471 | struct iwl_priv *priv = dev_get_drvdata(d); |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2472 | unsigned long val; |
| 2473 | int ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2474 | |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2475 | ret = strict_strtoul(buf, 0, &val); |
| 2476 | if (ret) |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 2477 | IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2478 | else |
Ester Kummer | 8cf769c | 2008-05-06 11:05:11 +0800 | [diff] [blame] | 2479 | priv->debug_level = val; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2480 | |
| 2481 | return strnlen(buf, count); |
| 2482 | } |
| 2483 | |
Ester Kummer | 8cf769c | 2008-05-06 11:05:11 +0800 | [diff] [blame] | 2484 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
| 2485 | show_debug_level, store_debug_level); |
| 2486 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2487 | |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 2488 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2489 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2490 | |
Tomas Winkler | bc6f59b | 2008-05-06 11:05:13 +0800 | [diff] [blame] | 2491 | static ssize_t show_version(struct device *d, |
| 2492 | struct device_attribute *attr, char *buf) |
| 2493 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2494 | struct iwl_priv *priv = dev_get_drvdata(d); |
Tomas Winkler | 885ba20 | 2008-05-29 16:34:55 +0800 | [diff] [blame] | 2495 | struct iwl_alive_resp *palive = &priv->card_alive; |
Tomas Winkler | f236a26 | 2008-06-30 17:23:02 +0800 | [diff] [blame] | 2496 | ssize_t pos = 0; |
| 2497 | u16 eeprom_ver; |
Tomas Winkler | bc6f59b | 2008-05-06 11:05:13 +0800 | [diff] [blame] | 2498 | |
| 2499 | if (palive->is_valid) |
Tomas Winkler | f236a26 | 2008-06-30 17:23:02 +0800 | [diff] [blame] | 2500 | pos += sprintf(buf + pos, |
| 2501 | "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n" |
| 2502 | "fw type: 0x%01X 0x%01X\n", |
Tomas Winkler | bc6f59b | 2008-05-06 11:05:13 +0800 | [diff] [blame] | 2503 | palive->ucode_major, palive->ucode_minor, |
| 2504 | palive->sw_rev[0], palive->sw_rev[1], |
| 2505 | palive->ver_type, palive->ver_subtype); |
Tomas Winkler | bc6f59b | 2008-05-06 11:05:13 +0800 | [diff] [blame] | 2506 | else |
Tomas Winkler | f236a26 | 2008-06-30 17:23:02 +0800 | [diff] [blame] | 2507 | pos += sprintf(buf + pos, "fw not loaded\n"); |
| 2508 | |
| 2509 | if (priv->eeprom) { |
| 2510 | eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); |
Wey-Yi Guy | 0848e29 | 2009-05-22 11:01:46 -0700 | [diff] [blame] | 2511 | pos += sprintf(buf + pos, "NVM Type: %s, version: 0x%x\n", |
| 2512 | (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP) |
| 2513 | ? "OTP" : "EEPROM", eeprom_ver); |
| 2514 | |
Tomas Winkler | f236a26 | 2008-06-30 17:23:02 +0800 | [diff] [blame] | 2515 | } else { |
| 2516 | pos += sprintf(buf + pos, "EEPROM not initialzed\n"); |
| 2517 | } |
| 2518 | |
| 2519 | return pos; |
Tomas Winkler | bc6f59b | 2008-05-06 11:05:13 +0800 | [diff] [blame] | 2520 | } |
| 2521 | |
| 2522 | static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL); |
| 2523 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2524 | static ssize_t show_temperature(struct device *d, |
| 2525 | struct device_attribute *attr, char *buf) |
| 2526 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2527 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2528 | |
Tomas Winkler | fee1247 | 2008-04-03 16:05:21 -0700 | [diff] [blame] | 2529 | if (!iwl_is_alive(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2530 | return -EAGAIN; |
| 2531 | |
Emmanuel Grumbach | 91dbc5b | 2008-06-12 09:47:14 +0800 | [diff] [blame] | 2532 | return sprintf(buf, "%d\n", priv->temperature); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2533 | } |
| 2534 | |
| 2535 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); |
| 2536 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2537 | static ssize_t show_tx_power(struct device *d, |
| 2538 | struct device_attribute *attr, char *buf) |
| 2539 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2540 | struct iwl_priv *priv = dev_get_drvdata(d); |
Jay Sternberg | 91f39e8 | 2008-12-17 16:52:34 +0800 | [diff] [blame] | 2541 | |
| 2542 | if (!iwl_is_ready_rf(priv)) |
| 2543 | return sprintf(buf, "off\n"); |
| 2544 | else |
| 2545 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2546 | } |
| 2547 | |
| 2548 | static ssize_t store_tx_power(struct device *d, |
| 2549 | struct device_attribute *attr, |
| 2550 | const char *buf, size_t count) |
| 2551 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2552 | struct iwl_priv *priv = dev_get_drvdata(d); |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2553 | unsigned long val; |
| 2554 | int ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2555 | |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2556 | ret = strict_strtoul(buf, 10, &val); |
| 2557 | if (ret) |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 2558 | IWL_INFO(priv, "%s is not in decimal form.\n", buf); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2559 | else |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 2560 | iwl_set_tx_power(priv, val, false); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2561 | |
| 2562 | return count; |
| 2563 | } |
| 2564 | |
| 2565 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); |
| 2566 | |
| 2567 | static ssize_t show_flags(struct device *d, |
| 2568 | struct device_attribute *attr, char *buf) |
| 2569 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2570 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2571 | |
| 2572 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); |
| 2573 | } |
| 2574 | |
| 2575 | static ssize_t store_flags(struct device *d, |
| 2576 | struct device_attribute *attr, |
| 2577 | const char *buf, size_t count) |
| 2578 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2579 | struct iwl_priv *priv = dev_get_drvdata(d); |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2580 | unsigned long val; |
| 2581 | u32 flags; |
| 2582 | int ret = strict_strtoul(buf, 0, &val); |
Emmanuel Grumbach | 926f0b2 | 2008-09-03 11:26:39 +0800 | [diff] [blame] | 2583 | if (ret) |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2584 | return ret; |
| 2585 | flags = (u32)val; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2586 | |
| 2587 | mutex_lock(&priv->mutex); |
| 2588 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { |
| 2589 | /* Cancel any currently running scans... */ |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 2590 | if (iwl_scan_cancel_timeout(priv, 100)) |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 2591 | IWL_WARN(priv, "Could not cancel scan.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2592 | else { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2593 | IWL_DEBUG_INFO(priv, "Commit rxon.flags = 0x%04X\n", flags); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2594 | priv->staging_rxon.flags = cpu_to_le32(flags); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 2595 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2596 | } |
| 2597 | } |
| 2598 | mutex_unlock(&priv->mutex); |
| 2599 | |
| 2600 | return count; |
| 2601 | } |
| 2602 | |
| 2603 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); |
| 2604 | |
| 2605 | static ssize_t show_filter_flags(struct device *d, |
| 2606 | struct device_attribute *attr, char *buf) |
| 2607 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2608 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2609 | |
| 2610 | return sprintf(buf, "0x%04X\n", |
| 2611 | le32_to_cpu(priv->active_rxon.filter_flags)); |
| 2612 | } |
| 2613 | |
| 2614 | static ssize_t store_filter_flags(struct device *d, |
| 2615 | struct device_attribute *attr, |
| 2616 | const char *buf, size_t count) |
| 2617 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 2618 | struct iwl_priv *priv = dev_get_drvdata(d); |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2619 | unsigned long val; |
| 2620 | u32 filter_flags; |
| 2621 | int ret = strict_strtoul(buf, 0, &val); |
Emmanuel Grumbach | 926f0b2 | 2008-09-03 11:26:39 +0800 | [diff] [blame] | 2622 | if (ret) |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2623 | return ret; |
| 2624 | filter_flags = (u32)val; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2625 | |
| 2626 | mutex_lock(&priv->mutex); |
| 2627 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { |
| 2628 | /* Cancel any currently running scans... */ |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 2629 | if (iwl_scan_cancel_timeout(priv, 100)) |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 2630 | IWL_WARN(priv, "Could not cancel scan.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2631 | else { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2632 | IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2633 | "0x%04X\n", filter_flags); |
| 2634 | priv->staging_rxon.filter_flags = |
| 2635 | cpu_to_le32(filter_flags); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 2636 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2637 | } |
| 2638 | } |
| 2639 | mutex_unlock(&priv->mutex); |
| 2640 | |
| 2641 | return count; |
| 2642 | } |
| 2643 | |
| 2644 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, |
| 2645 | store_filter_flags); |
| 2646 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2647 | static ssize_t store_power_level(struct device *d, |
| 2648 | struct device_attribute *attr, |
| 2649 | const char *buf, size_t count) |
| 2650 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 2651 | struct iwl_priv *priv = dev_get_drvdata(d); |
Esti Kummer | 298df1f | 2008-07-18 13:52:58 +0800 | [diff] [blame] | 2652 | int ret; |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2653 | unsigned long mode; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2654 | |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2655 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2656 | mutex_lock(&priv->mutex); |
| 2657 | |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2658 | ret = strict_strtoul(buf, 10, &mode); |
Emmanuel Grumbach | 926f0b2 | 2008-09-03 11:26:39 +0800 | [diff] [blame] | 2659 | if (ret) |
Tomas Winkler | 9257746f | 2008-09-03 11:26:32 +0800 | [diff] [blame] | 2660 | goto out; |
| 2661 | |
Esti Kummer | 298df1f | 2008-07-18 13:52:58 +0800 | [diff] [blame] | 2662 | ret = iwl_power_set_user_mode(priv, mode); |
| 2663 | if (ret) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2664 | IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n"); |
Mohamed Abbas | 5da4b55f | 2008-04-21 15:41:51 -0700 | [diff] [blame] | 2665 | goto out; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2666 | } |
Esti Kummer | 298df1f | 2008-07-18 13:52:58 +0800 | [diff] [blame] | 2667 | ret = count; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2668 | |
| 2669 | out: |
| 2670 | mutex_unlock(&priv->mutex); |
Esti Kummer | 298df1f | 2008-07-18 13:52:58 +0800 | [diff] [blame] | 2671 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2672 | } |
| 2673 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2674 | static ssize_t show_power_level(struct device *d, |
| 2675 | struct device_attribute *attr, char *buf) |
| 2676 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 2677 | struct iwl_priv *priv = dev_get_drvdata(d); |
Esti Kummer | 298df1f | 2008-07-18 13:52:58 +0800 | [diff] [blame] | 2678 | int mode = priv->power_data.user_power_setting; |
Mohamed Abbas | 5da4b55f | 2008-04-21 15:41:51 -0700 | [diff] [blame] | 2679 | int level = priv->power_data.power_mode; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2680 | char *p = buf; |
| 2681 | |
Johannes Berg | 7af2c46 | 2009-05-08 13:44:38 -0700 | [diff] [blame] | 2682 | p += sprintf(p, "INDEX:%d\t", level); |
| 2683 | p += sprintf(p, "USER:%d\n", mode); |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 2684 | return p - buf + 1; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2685 | } |
| 2686 | |
| 2687 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, |
| 2688 | store_power_level); |
| 2689 | |
Wey-Yi Guy | 0b4d0ab | 2009-05-08 13:44:44 -0700 | [diff] [blame] | 2690 | static ssize_t show_qos(struct device *d, |
| 2691 | struct device_attribute *attr, char *buf) |
| 2692 | { |
Julia Lawall | 4eaf16b | 2009-05-17 11:28:42 +0200 | [diff] [blame] | 2693 | struct iwl_priv *priv = dev_get_drvdata(d); |
Wey-Yi Guy | 0b4d0ab | 2009-05-08 13:44:44 -0700 | [diff] [blame] | 2694 | char *p = buf; |
| 2695 | int q; |
| 2696 | |
| 2697 | for (q = 0; q < AC_NUM; q++) { |
| 2698 | p += sprintf(p, "\tcw_min\tcw_max\taifsn\ttxop\n"); |
| 2699 | p += sprintf(p, "AC[%d]\t%u\t%u\t%u\t%u\n", q, |
| 2700 | priv->qos_data.def_qos_parm.ac[q].cw_min, |
| 2701 | priv->qos_data.def_qos_parm.ac[q].cw_max, |
| 2702 | priv->qos_data.def_qos_parm.ac[q].aifsn, |
| 2703 | priv->qos_data.def_qos_parm.ac[q].edca_txop); |
| 2704 | } |
| 2705 | |
| 2706 | return p - buf + 1; |
| 2707 | } |
| 2708 | |
| 2709 | static DEVICE_ATTR(qos, S_IRUGO, show_qos, NULL); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2710 | |
| 2711 | static ssize_t show_statistics(struct device *d, |
| 2712 | struct device_attribute *attr, char *buf) |
| 2713 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 2714 | struct iwl_priv *priv = dev_get_drvdata(d); |
Emmanuel Grumbach | 8f91aec | 2008-06-30 17:23:07 +0800 | [diff] [blame] | 2715 | u32 size = sizeof(struct iwl_notif_statistics); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2716 | u32 len = 0, ofs = 0; |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 2717 | u8 *data = (u8 *)&priv->statistics; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2718 | int rc = 0; |
| 2719 | |
Tomas Winkler | fee1247 | 2008-04-03 16:05:21 -0700 | [diff] [blame] | 2720 | if (!iwl_is_alive(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2721 | return -EAGAIN; |
| 2722 | |
| 2723 | mutex_lock(&priv->mutex); |
Emmanuel Grumbach | 49ea859 | 2008-04-15 16:01:37 -0700 | [diff] [blame] | 2724 | rc = iwl_send_statistics_request(priv, 0); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2725 | mutex_unlock(&priv->mutex); |
| 2726 | |
| 2727 | if (rc) { |
| 2728 | len = sprintf(buf, |
| 2729 | "Error sending statistics request: 0x%08X\n", rc); |
| 2730 | return len; |
| 2731 | } |
| 2732 | |
| 2733 | while (size && (PAGE_SIZE - len)) { |
| 2734 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, |
| 2735 | PAGE_SIZE - len, 1); |
| 2736 | len = strlen(buf); |
| 2737 | if (PAGE_SIZE - len) |
| 2738 | buf[len++] = '\n'; |
| 2739 | |
| 2740 | ofs += 16; |
| 2741 | size -= min(size, 16U); |
| 2742 | } |
| 2743 | |
| 2744 | return len; |
| 2745 | } |
| 2746 | |
| 2747 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); |
| 2748 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2749 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2750 | /***************************************************************************** |
| 2751 | * |
| 2752 | * driver setup and teardown |
| 2753 | * |
| 2754 | *****************************************************************************/ |
| 2755 | |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 2756 | static void iwl_setup_deferred_work(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2757 | { |
Reinette Chatre | d21050c | 2009-02-13 11:51:18 -0800 | [diff] [blame] | 2758 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2759 | |
| 2760 | init_waitqueue_head(&priv->wait_command_queue); |
| 2761 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2762 | INIT_WORK(&priv->up, iwl_bg_up); |
| 2763 | INIT_WORK(&priv->restart, iwl_bg_restart); |
| 2764 | INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2765 | INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); |
Emmanuel Grumbach | 16e727e | 2008-06-12 09:46:52 +0800 | [diff] [blame] | 2766 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); |
Tomas Winkler | 4a4a9e8 | 2008-05-29 16:34:54 +0800 | [diff] [blame] | 2767 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start); |
| 2768 | INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start); |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 2769 | |
Tomas Winkler | 2a421b9 | 2008-06-12 09:47:10 +0800 | [diff] [blame] | 2770 | iwl_setup_scan_deferred_work(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2771 | |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 2772 | if (priv->cfg->ops->lib->setup_deferred_work) |
| 2773 | priv->cfg->ops->lib->setup_deferred_work(priv); |
| 2774 | |
| 2775 | init_timer(&priv->statistics_periodic); |
| 2776 | priv->statistics_periodic.data = (unsigned long)priv; |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2777 | priv->statistics_periodic.function = iwl_bg_statistics_periodic; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2778 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 2779 | if (!priv->cfg->use_isr_legacy) |
| 2780 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) |
| 2781 | iwl_irq_tasklet, (unsigned long)priv); |
| 2782 | else |
| 2783 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) |
| 2784 | iwl_irq_tasklet_legacy, (unsigned long)priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2785 | } |
| 2786 | |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 2787 | static void iwl_cancel_deferred_work(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2788 | { |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 2789 | if (priv->cfg->ops->lib->cancel_deferred_work) |
| 2790 | priv->cfg->ops->lib->cancel_deferred_work(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2791 | |
Joonwoo Park | 3ae6a05 | 2007-11-29 10:43:16 +0900 | [diff] [blame] | 2792 | cancel_delayed_work_sync(&priv->init_alive_start); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2793 | cancel_delayed_work(&priv->scan_check); |
| 2794 | cancel_delayed_work(&priv->alive_start); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2795 | cancel_work_sync(&priv->beacon_update); |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 2796 | del_timer_sync(&priv->statistics_periodic); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2797 | } |
| 2798 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2799 | static struct attribute *iwl_sysfs_entries[] = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2800 | &dev_attr_flags.attr, |
| 2801 | &dev_attr_filter_flags.attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2802 | &dev_attr_power_level.attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2803 | &dev_attr_statistics.attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2804 | &dev_attr_temperature.attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2805 | &dev_attr_tx_power.attr, |
Ester Kummer | 8cf769c | 2008-05-06 11:05:11 +0800 | [diff] [blame] | 2806 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 2807 | &dev_attr_debug_level.attr, |
| 2808 | #endif |
Tomas Winkler | bc6f59b | 2008-05-06 11:05:13 +0800 | [diff] [blame] | 2809 | &dev_attr_version.attr, |
Wey-Yi Guy | 0b4d0ab | 2009-05-08 13:44:44 -0700 | [diff] [blame] | 2810 | &dev_attr_qos.attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2811 | NULL |
| 2812 | }; |
| 2813 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2814 | static struct attribute_group iwl_attribute_group = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2815 | .name = NULL, /* put in device directory */ |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2816 | .attrs = iwl_sysfs_entries, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2817 | }; |
| 2818 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2819 | static struct ieee80211_ops iwl_hw_ops = { |
| 2820 | .tx = iwl_mac_tx, |
| 2821 | .start = iwl_mac_start, |
| 2822 | .stop = iwl_mac_stop, |
| 2823 | .add_interface = iwl_mac_add_interface, |
| 2824 | .remove_interface = iwl_mac_remove_interface, |
| 2825 | .config = iwl_mac_config, |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2826 | .configure_filter = iwl_configure_filter, |
| 2827 | .set_key = iwl_mac_set_key, |
| 2828 | .update_tkip_key = iwl_mac_update_tkip_key, |
| 2829 | .get_stats = iwl_mac_get_stats, |
| 2830 | .get_tx_stats = iwl_mac_get_tx_stats, |
| 2831 | .conf_tx = iwl_mac_conf_tx, |
| 2832 | .reset_tsf = iwl_mac_reset_tsf, |
| 2833 | .bss_info_changed = iwl_bss_info_changed, |
| 2834 | .ampdu_action = iwl_mac_ampdu_action, |
Tomas Winkler | cb43dc2 | 2008-09-03 11:26:23 +0800 | [diff] [blame] | 2835 | .hw_scan = iwl_mac_hw_scan |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2836 | }; |
| 2837 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2838 | static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2839 | { |
| 2840 | int err = 0; |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 2841 | struct iwl_priv *priv; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2842 | struct ieee80211_hw *hw; |
Tomas Winkler | 82b9a12 | 2008-03-04 18:09:30 -0800 | [diff] [blame] | 2843 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 2844 | unsigned long flags; |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 2845 | u16 pci_cmd; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2846 | |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2847 | /************************ |
| 2848 | * 1. Allocating HW data |
| 2849 | ************************/ |
| 2850 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 2851 | /* Disabling hardware scan means that mac80211 will perform scans |
| 2852 | * "the hard way", rather than using device's scan. */ |
Assaf Krauss | 1ea8739 | 2008-03-18 14:57:50 -0700 | [diff] [blame] | 2853 | if (cfg->mod_params->disable_hw_scan) { |
Ester Kummer | bf403db | 2008-05-05 10:22:40 +0800 | [diff] [blame] | 2854 | if (cfg->mod_params->debug & IWL_DL_INFO) |
| 2855 | dev_printk(KERN_DEBUG, &(pdev->dev), |
| 2856 | "Disabling hw_scan\n"); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2857 | iwl_hw_ops.hw_scan = NULL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2858 | } |
| 2859 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2860 | hw = iwl_alloc_all(cfg, &iwl_hw_ops); |
Assaf Krauss | 1d0a082 | 2008-03-14 10:38:48 -0700 | [diff] [blame] | 2861 | if (!hw) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2862 | err = -ENOMEM; |
| 2863 | goto out; |
| 2864 | } |
Assaf Krauss | 1d0a082 | 2008-03-14 10:38:48 -0700 | [diff] [blame] | 2865 | priv = hw->priv; |
| 2866 | /* At this point both hw and priv are allocated. */ |
| 2867 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2868 | SET_IEEE80211_DEV(hw, &pdev->dev); |
| 2869 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2870 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
Tomas Winkler | 82b9a12 | 2008-03-04 18:09:30 -0800 | [diff] [blame] | 2871 | priv->cfg = cfg; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2872 | priv->pci_dev = pdev; |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 2873 | priv->inta_mask = CSR_INI_SET_MASK; |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2874 | |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 2875 | #ifdef CONFIG_IWLWIFI_DEBUG |
Ester Kummer | bf403db | 2008-05-05 10:22:40 +0800 | [diff] [blame] | 2876 | priv->debug_level = priv->cfg->mod_params->debug; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2877 | atomic_set(&priv->restrict_refcnt, 0); |
| 2878 | #endif |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2879 | |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2880 | /************************** |
| 2881 | * 2. Initializing PCI bus |
| 2882 | **************************/ |
| 2883 | if (pci_enable_device(pdev)) { |
| 2884 | err = -ENODEV; |
| 2885 | goto out_ieee80211_free_hw; |
| 2886 | } |
| 2887 | |
| 2888 | pci_set_master(pdev); |
| 2889 | |
Winkler, Tomas | 093d874 | 2008-09-26 15:09:34 +0800 | [diff] [blame] | 2890 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36)); |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2891 | if (!err) |
Winkler, Tomas | 093d874 | 2008-09-26 15:09:34 +0800 | [diff] [blame] | 2892 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36)); |
Ron Rindjunsky | cc2a8ea | 2008-04-21 15:41:59 -0700 | [diff] [blame] | 2893 | if (err) { |
Winkler, Tomas | 093d874 | 2008-09-26 15:09:34 +0800 | [diff] [blame] | 2894 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
Ron Rindjunsky | cc2a8ea | 2008-04-21 15:41:59 -0700 | [diff] [blame] | 2895 | if (!err) |
Winkler, Tomas | 093d874 | 2008-09-26 15:09:34 +0800 | [diff] [blame] | 2896 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
Ron Rindjunsky | cc2a8ea | 2008-04-21 15:41:59 -0700 | [diff] [blame] | 2897 | /* both attempts failed: */ |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2898 | if (err) { |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 2899 | IWL_WARN(priv, "No suitable DMA available.\n"); |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2900 | goto out_pci_disable_device; |
Ron Rindjunsky | cc2a8ea | 2008-04-21 15:41:59 -0700 | [diff] [blame] | 2901 | } |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2902 | } |
| 2903 | |
| 2904 | err = pci_request_regions(pdev, DRV_NAME); |
| 2905 | if (err) |
| 2906 | goto out_pci_disable_device; |
| 2907 | |
| 2908 | pci_set_drvdata(pdev, priv); |
| 2909 | |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2910 | |
| 2911 | /*********************** |
| 2912 | * 3. Read REV register |
| 2913 | ***********************/ |
| 2914 | priv->hw_base = pci_iomap(pdev, 0, 0); |
| 2915 | if (!priv->hw_base) { |
| 2916 | err = -ENODEV; |
| 2917 | goto out_pci_release_regions; |
| 2918 | } |
| 2919 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2920 | IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n", |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2921 | (unsigned long long) pci_resource_len(pdev, 0)); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2922 | IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2923 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 2924 | /* this spin lock will be used in apm_ops.init and EEPROM access |
| 2925 | * we should init now |
| 2926 | */ |
| 2927 | spin_lock_init(&priv->reg_lock); |
Tomas Winkler | b661c81 | 2008-04-23 17:14:54 -0700 | [diff] [blame] | 2928 | iwl_hw_detect(priv); |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 2929 | IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s REV=0x%X\n", |
Tomas Winkler | b661c81 | 2008-04-23 17:14:54 -0700 | [diff] [blame] | 2930 | priv->cfg->name, priv->hw_rev); |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2931 | |
Tomas Winkler | e7b6358 | 2008-09-03 11:26:49 +0800 | [diff] [blame] | 2932 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
| 2933 | * PCI Tx retries from interfering with C3 CPU state */ |
| 2934 | pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); |
| 2935 | |
Mohamed Abbas | 086ed11 | 2009-05-22 11:01:54 -0700 | [diff] [blame] | 2936 | iwl_prepare_card_hw(priv); |
| 2937 | if (!priv->hw_ready) { |
| 2938 | IWL_WARN(priv, "Failed, HW not ready\n"); |
| 2939 | goto out_iounmap; |
| 2940 | } |
| 2941 | |
Tomas Winkler | 9123871 | 2008-04-23 17:14:53 -0700 | [diff] [blame] | 2942 | /* amp init */ |
| 2943 | err = priv->cfg->ops->lib->apm_ops.init(priv); |
| 2944 | if (err < 0) { |
Reinette Chatre | 808ff69 | 2009-03-11 11:18:01 -0700 | [diff] [blame] | 2945 | IWL_ERR(priv, "Failed to init APMG\n"); |
Tomas Winkler | 9123871 | 2008-04-23 17:14:53 -0700 | [diff] [blame] | 2946 | goto out_iounmap; |
| 2947 | } |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2948 | /***************** |
| 2949 | * 4. Read EEPROM |
| 2950 | *****************/ |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2951 | /* Read the EEPROM */ |
| 2952 | err = iwl_eeprom_init(priv); |
| 2953 | if (err) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2954 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2955 | goto out_iounmap; |
| 2956 | } |
Tomas Winkler | 8614f36 | 2008-04-23 17:14:55 -0700 | [diff] [blame] | 2957 | err = iwl_eeprom_check_version(priv); |
| 2958 | if (err) |
Reinette Chatre | c8f1613 | 2009-02-27 16:21:22 -0800 | [diff] [blame] | 2959 | goto out_free_eeprom; |
Tomas Winkler | 8614f36 | 2008-04-23 17:14:55 -0700 | [diff] [blame] | 2960 | |
Ron Rindjunsky | 0288301 | 2008-05-15 13:53:53 +0800 | [diff] [blame] | 2961 | /* extract MAC Address */ |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2962 | iwl_eeprom_get_mac(priv, priv->mac_addr); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2963 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr); |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2964 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
| 2965 | |
| 2966 | /************************ |
| 2967 | * 5. Setup HW constants |
| 2968 | ************************/ |
Ron Rindjunsky | da154e3 | 2008-06-30 17:23:20 +0800 | [diff] [blame] | 2969 | if (iwl_set_hw_params(priv)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2970 | IWL_ERR(priv, "failed to set hw parameters\n"); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 2971 | goto out_free_eeprom; |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2972 | } |
| 2973 | |
| 2974 | /******************* |
Tomas Winkler | 6ba8795 | 2008-05-15 13:54:17 +0800 | [diff] [blame] | 2975 | * 6. Setup priv |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2976 | *******************/ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2977 | |
Tomas Winkler | 6ba8795 | 2008-05-15 13:54:17 +0800 | [diff] [blame] | 2978 | err = iwl_init_drv(priv); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 2979 | if (err) |
Ron Rindjunsky | 399f4900 | 2008-04-23 17:14:56 -0700 | [diff] [blame] | 2980 | goto out_free_eeprom; |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 2981 | /* At this point both hw and priv are initialized. */ |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2982 | |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2983 | /******************** |
Abhijeet Kolekar | 09f9bf7 | 2009-04-20 14:37:03 -0700 | [diff] [blame] | 2984 | * 7. Setup services |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2985 | ********************/ |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 2986 | spin_lock_irqsave(&priv->lock, flags); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2987 | iwl_disable_interrupts(priv); |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 2988 | spin_unlock_irqrestore(&priv->lock, flags); |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 2989 | |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 2990 | pci_enable_msi(priv->pci_dev); |
| 2991 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 2992 | iwl_alloc_isr_ict(priv); |
| 2993 | err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr, |
| 2994 | IRQF_SHARED, DRV_NAME, priv); |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 2995 | if (err) { |
| 2996 | IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq); |
| 2997 | goto out_disable_msi; |
| 2998 | } |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 2999 | err = sysfs_create_group(&pdev->dev.kobj, &iwl_attribute_group); |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 3000 | if (err) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 3001 | IWL_ERR(priv, "failed to create sysfs device attributes\n"); |
Helmut Schaa | 795cc0a | 2009-02-12 18:51:03 +0100 | [diff] [blame] | 3002 | goto out_free_irq; |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 3003 | } |
| 3004 | |
Emmanuel Grumbach | 4e39317 | 2008-06-12 09:46:53 +0800 | [diff] [blame] | 3005 | iwl_setup_deferred_work(priv); |
Emmanuel Grumbach | 653fa4a | 2008-06-30 17:23:11 +0800 | [diff] [blame] | 3006 | iwl_setup_rx_handlers(priv); |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 3007 | |
Tomas Winkler | 6ba8795 | 2008-05-15 13:54:17 +0800 | [diff] [blame] | 3008 | /********************************** |
Abhijeet Kolekar | 09f9bf7 | 2009-04-20 14:37:03 -0700 | [diff] [blame] | 3009 | * 8. Setup and register mac80211 |
Tomas Winkler | 6ba8795 | 2008-05-15 13:54:17 +0800 | [diff] [blame] | 3010 | **********************************/ |
| 3011 | |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 3012 | /* enable interrupts if needed: hw bug w/a */ |
| 3013 | pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd); |
| 3014 | if (pci_cmd & PCI_COMMAND_INTX_DISABLE) { |
| 3015 | pci_cmd &= ~PCI_COMMAND_INTX_DISABLE; |
| 3016 | pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd); |
| 3017 | } |
| 3018 | |
| 3019 | iwl_enable_interrupts(priv); |
| 3020 | |
Tomas Winkler | 6ba8795 | 2008-05-15 13:54:17 +0800 | [diff] [blame] | 3021 | err = iwl_setup_mac(priv); |
| 3022 | if (err) |
| 3023 | goto out_remove_sysfs; |
| 3024 | |
| 3025 | err = iwl_dbgfs_register(priv, DRV_NAME); |
| 3026 | if (err) |
Abhijeet Kolekar | a75fbe8 | 2009-04-20 14:36:58 -0700 | [diff] [blame] | 3027 | IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); |
Tomas Winkler | 6ba8795 | 2008-05-15 13:54:17 +0800 | [diff] [blame] | 3028 | |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 3029 | /* If platform's RF_KILL switch is NOT set to KILL */ |
| 3030 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
| 3031 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
| 3032 | else |
| 3033 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3034 | |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 3035 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, |
| 3036 | test_bit(STATUS_RF_KILL_HW, &priv->status)); |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 3037 | |
Emmanuel Grumbach | 58d0f36 | 2008-06-12 09:47:19 +0800 | [diff] [blame] | 3038 | iwl_power_initialize(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3039 | return 0; |
| 3040 | |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 3041 | out_remove_sysfs: |
Reinette Chatre | c8f1613 | 2009-02-27 16:21:22 -0800 | [diff] [blame] | 3042 | destroy_workqueue(priv->workqueue); |
| 3043 | priv->workqueue = NULL; |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3044 | sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); |
Helmut Schaa | 795cc0a | 2009-02-12 18:51:03 +0100 | [diff] [blame] | 3045 | out_free_irq: |
| 3046 | free_irq(priv->pci_dev->irq, priv); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 3047 | iwl_free_isr_ict(priv); |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 3048 | out_disable_msi: |
| 3049 | pci_disable_msi(priv->pci_dev); |
Tomas Winkler | 6ba8795 | 2008-05-15 13:54:17 +0800 | [diff] [blame] | 3050 | iwl_uninit_drv(priv); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 3051 | out_free_eeprom: |
| 3052 | iwl_eeprom_free(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3053 | out_iounmap: |
| 3054 | pci_iounmap(pdev, priv->hw_base); |
| 3055 | out_pci_release_regions: |
Assaf Krauss | 316c30d | 2008-03-14 10:38:46 -0700 | [diff] [blame] | 3056 | pci_set_drvdata(pdev, NULL); |
Reinette Chatre | 623d563 | 2009-03-03 11:37:04 -0800 | [diff] [blame] | 3057 | pci_release_regions(pdev); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3058 | out_pci_disable_device: |
| 3059 | pci_disable_device(pdev); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3060 | out_ieee80211_free_hw: |
| 3061 | ieee80211_free_hw(priv->hw); |
| 3062 | out: |
| 3063 | return err; |
| 3064 | } |
| 3065 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3066 | static void __devexit iwl_pci_remove(struct pci_dev *pdev) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3067 | { |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 3068 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 3069 | unsigned long flags; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3070 | |
| 3071 | if (!priv) |
| 3072 | return; |
| 3073 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3074 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3075 | |
Emmanuel Grumbach | 6724962 | 2008-05-29 16:35:26 +0800 | [diff] [blame] | 3076 | iwl_dbgfs_unregister(priv); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3077 | sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); |
Emmanuel Grumbach | 6724962 | 2008-05-29 16:35:26 +0800 | [diff] [blame] | 3078 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3079 | /* ieee80211_unregister_hw call wil cause iwl_mac_stop to |
| 3080 | * to be called and iwl_down since we are removing the device |
Gregory Greenman | 0b124c3 | 2008-09-03 11:18:50 +0800 | [diff] [blame] | 3081 | * we need to set STATUS_EXIT_PENDING bit. |
| 3082 | */ |
| 3083 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
Ron Rindjunsky | c4f5523 | 2008-03-28 16:21:10 -0700 | [diff] [blame] | 3084 | if (priv->mac80211_registered) { |
| 3085 | ieee80211_unregister_hw(priv->hw); |
| 3086 | priv->mac80211_registered = 0; |
Gregory Greenman | 0b124c3 | 2008-09-03 11:18:50 +0800 | [diff] [blame] | 3087 | } else { |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3088 | iwl_down(priv); |
Ron Rindjunsky | c4f5523 | 2008-03-28 16:21:10 -0700 | [diff] [blame] | 3089 | } |
| 3090 | |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 3091 | /* make sure we flush any pending irq or |
| 3092 | * tasklet for the driver |
| 3093 | */ |
| 3094 | spin_lock_irqsave(&priv->lock, flags); |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3095 | iwl_disable_interrupts(priv); |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 3096 | spin_unlock_irqrestore(&priv->lock, flags); |
| 3097 | |
| 3098 | iwl_synchronize_irq(priv); |
| 3099 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3100 | iwl_dealloc_ucode_pci(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3101 | |
| 3102 | if (priv->rxq.bd) |
Tomas Winkler | a55360e | 2008-05-05 10:22:28 +0800 | [diff] [blame] | 3103 | iwl_rx_queue_free(priv, &priv->rxq); |
Ron Rindjunsky | 1053d35 | 2008-05-05 10:22:43 +0800 | [diff] [blame] | 3104 | iwl_hw_txq_ctx_free(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3105 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 3106 | iwl_clear_stations_table(priv); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 3107 | iwl_eeprom_free(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3108 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3109 | |
Mohamed Abbas | 948c171 | 2007-10-25 17:15:45 +0800 | [diff] [blame] | 3110 | /*netif_stop_queue(dev); */ |
| 3111 | flush_workqueue(priv->workqueue); |
| 3112 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3113 | /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3114 | * priv->workqueue... so we can't take down the workqueue |
| 3115 | * until now... */ |
| 3116 | destroy_workqueue(priv->workqueue); |
| 3117 | priv->workqueue = NULL; |
| 3118 | |
Helmut Schaa | 6cd0b1c | 2009-01-19 13:10:07 +0100 | [diff] [blame] | 3119 | free_irq(priv->pci_dev->irq, priv); |
| 3120 | pci_disable_msi(priv->pci_dev); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3121 | pci_iounmap(pdev, priv->hw_base); |
| 3122 | pci_release_regions(pdev); |
| 3123 | pci_disable_device(pdev); |
| 3124 | pci_set_drvdata(pdev, NULL); |
| 3125 | |
Tomas Winkler | 6ba8795 | 2008-05-15 13:54:17 +0800 | [diff] [blame] | 3126 | iwl_uninit_drv(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3127 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 3128 | iwl_free_isr_ict(priv); |
| 3129 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3130 | if (priv->ibss_beacon) |
| 3131 | dev_kfree_skb(priv->ibss_beacon); |
| 3132 | |
| 3133 | ieee80211_free_hw(priv->hw); |
| 3134 | } |
| 3135 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3136 | |
| 3137 | /***************************************************************************** |
| 3138 | * |
| 3139 | * driver and module entry point |
| 3140 | * |
| 3141 | *****************************************************************************/ |
| 3142 | |
Ron Rindjunsky | fed9017 | 2008-04-15 16:01:41 -0700 | [diff] [blame] | 3143 | /* Hardware specific file defines the PCI IDs table for that hardware module */ |
| 3144 | static struct pci_device_id iwl_hw_card_ids[] = { |
Tomas Winkler | 4fc22b2 | 2008-07-21 18:54:42 +0300 | [diff] [blame] | 3145 | #ifdef CONFIG_IWL4965 |
Ron Rindjunsky | fed9017 | 2008-04-15 16:01:41 -0700 | [diff] [blame] | 3146 | {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)}, |
| 3147 | {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)}, |
Tomas Winkler | 4fc22b2 | 2008-07-21 18:54:42 +0300 | [diff] [blame] | 3148 | #endif /* CONFIG_IWL4965 */ |
Tomas Winkler | 5a6a256 | 2008-04-24 11:55:23 -0700 | [diff] [blame] | 3149 | #ifdef CONFIG_IWL5000 |
Esti Kummer | 4740863 | 2008-07-11 11:53:30 +0800 | [diff] [blame] | 3150 | {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bg_cfg)}, |
| 3151 | {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bg_cfg)}, |
| 3152 | {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, |
| 3153 | {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, |
| 3154 | {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, |
| 3155 | {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, |
Tomas Winkler | 5a6a256 | 2008-04-24 11:55:23 -0700 | [diff] [blame] | 3156 | {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)}, |
Esti Kummer | 4740863 | 2008-07-11 11:53:30 +0800 | [diff] [blame] | 3157 | {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)}, |
| 3158 | {IWL_PCI_DEVICE(0x4236, PCI_ANY_ID, iwl5300_agn_cfg)}, |
| 3159 | {IWL_PCI_DEVICE(0x4237, PCI_ANY_ID, iwl5100_agn_cfg)}, |
Tomas Winkler | e96a849 | 2008-09-11 11:45:20 +0800 | [diff] [blame] | 3160 | /* 5350 WiFi/WiMax */ |
| 3161 | {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, |
| 3162 | {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, |
| 3163 | {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, |
Tomas Winkler | 7100e92 | 2008-12-01 16:32:18 -0800 | [diff] [blame] | 3164 | /* 5150 Wifi/WiMax */ |
| 3165 | {IWL_PCI_DEVICE(0x423C, PCI_ANY_ID, iwl5150_agn_cfg)}, |
| 3166 | {IWL_PCI_DEVICE(0x423D, PCI_ANY_ID, iwl5150_agn_cfg)}, |
Jay Sternberg | e122837 | 2009-01-19 15:30:34 -0800 | [diff] [blame] | 3167 | /* 6000/6050 Series */ |
| 3168 | {IWL_PCI_DEVICE(0x0082, 0x1102, iwl6000_2ag_cfg)}, |
| 3169 | {IWL_PCI_DEVICE(0x0085, 0x1112, iwl6000_2ag_cfg)}, |
| 3170 | {IWL_PCI_DEVICE(0x0082, 0x1122, iwl6000_2ag_cfg)}, |
| 3171 | {IWL_PCI_DEVICE(0x422B, PCI_ANY_ID, iwl6000_3agn_cfg)}, |
Jay Sternberg | 542cc79 | 2009-05-08 13:44:46 -0700 | [diff] [blame] | 3172 | {IWL_PCI_DEVICE(0x422C, PCI_ANY_ID, iwl6000_2agn_cfg)}, |
Jay Sternberg | e122837 | 2009-01-19 15:30:34 -0800 | [diff] [blame] | 3173 | {IWL_PCI_DEVICE(0x4238, PCI_ANY_ID, iwl6000_3agn_cfg)}, |
Jay Sternberg | 542cc79 | 2009-05-08 13:44:46 -0700 | [diff] [blame] | 3174 | {IWL_PCI_DEVICE(0x4239, PCI_ANY_ID, iwl6000_2agn_cfg)}, |
Jay Sternberg | e122837 | 2009-01-19 15:30:34 -0800 | [diff] [blame] | 3175 | {IWL_PCI_DEVICE(0x0082, PCI_ANY_ID, iwl6000_2agn_cfg)}, |
| 3176 | {IWL_PCI_DEVICE(0x0085, PCI_ANY_ID, iwl6000_3agn_cfg)}, |
| 3177 | {IWL_PCI_DEVICE(0x0086, PCI_ANY_ID, iwl6050_3agn_cfg)}, |
| 3178 | {IWL_PCI_DEVICE(0x0087, PCI_ANY_ID, iwl6050_2agn_cfg)}, |
| 3179 | {IWL_PCI_DEVICE(0x0088, PCI_ANY_ID, iwl6050_3agn_cfg)}, |
| 3180 | {IWL_PCI_DEVICE(0x0089, PCI_ANY_ID, iwl6050_2agn_cfg)}, |
Jay Sternberg | 77dcb6a | 2009-03-06 13:52:55 -0800 | [diff] [blame] | 3181 | /* 1000 Series WiFi */ |
| 3182 | {IWL_PCI_DEVICE(0x0083, PCI_ANY_ID, iwl1000_bgn_cfg)}, |
| 3183 | {IWL_PCI_DEVICE(0x0084, PCI_ANY_ID, iwl1000_bgn_cfg)}, |
Tomas Winkler | 5a6a256 | 2008-04-24 11:55:23 -0700 | [diff] [blame] | 3184 | #endif /* CONFIG_IWL5000 */ |
Tomas Winkler | 7100e92 | 2008-12-01 16:32:18 -0800 | [diff] [blame] | 3185 | |
Ron Rindjunsky | fed9017 | 2008-04-15 16:01:41 -0700 | [diff] [blame] | 3186 | {0} |
| 3187 | }; |
| 3188 | MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); |
| 3189 | |
| 3190 | static struct pci_driver iwl_driver = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3191 | .name = DRV_NAME, |
Ron Rindjunsky | fed9017 | 2008-04-15 16:01:41 -0700 | [diff] [blame] | 3192 | .id_table = iwl_hw_card_ids, |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3193 | .probe = iwl_pci_probe, |
| 3194 | .remove = __devexit_p(iwl_pci_remove), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3195 | #ifdef CONFIG_PM |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3196 | .suspend = iwl_pci_suspend, |
| 3197 | .resume = iwl_pci_resume, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3198 | #endif |
| 3199 | }; |
| 3200 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3201 | static int __init iwl_init(void) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3202 | { |
| 3203 | |
| 3204 | int ret; |
| 3205 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
| 3206 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 3207 | |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 3208 | ret = iwlagn_rate_control_register(); |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 3209 | if (ret) { |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 3210 | printk(KERN_ERR DRV_NAME |
| 3211 | "Unable to register rate control algorithm: %d\n", ret); |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 3212 | return ret; |
| 3213 | } |
| 3214 | |
Ron Rindjunsky | fed9017 | 2008-04-15 16:01:41 -0700 | [diff] [blame] | 3215 | ret = pci_register_driver(&iwl_driver); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3216 | if (ret) { |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 3217 | printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n"); |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 3218 | goto error_register; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3219 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3220 | |
| 3221 | return ret; |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 3222 | |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 3223 | error_register: |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 3224 | iwlagn_rate_control_unregister(); |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 3225 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3226 | } |
| 3227 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3228 | static void __exit iwl_exit(void) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3229 | { |
Ron Rindjunsky | fed9017 | 2008-04-15 16:01:41 -0700 | [diff] [blame] | 3230 | pci_unregister_driver(&iwl_driver); |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 3231 | iwlagn_rate_control_unregister(); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3232 | } |
| 3233 | |
Emmanuel Grumbach | 5b9f8cd | 2008-10-29 14:05:46 -0700 | [diff] [blame] | 3234 | module_exit(iwl_exit); |
| 3235 | module_init(iwl_init); |