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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2011-07-11 10:39:46 -0400
committerWey-Yi Guy <wey-yi.w.guy@intel.com>2011-07-16 10:38:59 -0400
commit253a634ccd1b291282cd0cade219bd90eb0371eb (patch)
treeecb708eb830aaf1404e7ca7137784d8163c26b60 /drivers/net/wireless/iwlwifi/iwl-hcmd.c
parentab697a9f1e73ba817955e15bd899a8a0627f9fd6 (diff)
iwlagn: move tx transport functions to iwl-trans-tx-pcie.c
There are still a few functions here and there that should be put in the transport layer. Mainly the functions that are related to the reclaim flow. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-hcmd.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-hcmd.c271
1 files changed, 0 insertions, 271 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
deleted file mode 100644
index 6cff8c165ce9..000000000000
--- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c
+++ /dev/null
@@ -1,271 +0,0 @@
1/******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
5 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
19 * USA
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
28
29#include <linux/kernel.h>
30#include <linux/module.h>
31#include <linux/sched.h>
32#include <net/mac80211.h>
33
34#include "iwl-dev.h" /* FIXME: remove */
35#include "iwl-debug.h"
36#include "iwl-eeprom.h"
37#include "iwl-core.h"
38
39
40const char *get_cmd_string(u8 cmd)
41{
42 switch (cmd) {
43 IWL_CMD(REPLY_ALIVE);
44 IWL_CMD(REPLY_ERROR);
45 IWL_CMD(REPLY_RXON);
46 IWL_CMD(REPLY_RXON_ASSOC);
47 IWL_CMD(REPLY_QOS_PARAM);
48 IWL_CMD(REPLY_RXON_TIMING);
49 IWL_CMD(REPLY_ADD_STA);
50 IWL_CMD(REPLY_REMOVE_STA);
51 IWL_CMD(REPLY_REMOVE_ALL_STA);
52 IWL_CMD(REPLY_TXFIFO_FLUSH);
53 IWL_CMD(REPLY_WEPKEY);
54 IWL_CMD(REPLY_TX);
55 IWL_CMD(REPLY_LEDS_CMD);
56 IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
57 IWL_CMD(COEX_PRIORITY_TABLE_CMD);
58 IWL_CMD(COEX_MEDIUM_NOTIFICATION);
59 IWL_CMD(COEX_EVENT_CMD);
60 IWL_CMD(REPLY_QUIET_CMD);
61 IWL_CMD(REPLY_CHANNEL_SWITCH);
62 IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
63 IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
64 IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
65 IWL_CMD(POWER_TABLE_CMD);
66 IWL_CMD(PM_SLEEP_NOTIFICATION);
67 IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
68 IWL_CMD(REPLY_SCAN_CMD);
69 IWL_CMD(REPLY_SCAN_ABORT_CMD);
70 IWL_CMD(SCAN_START_NOTIFICATION);
71 IWL_CMD(SCAN_RESULTS_NOTIFICATION);
72 IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
73 IWL_CMD(BEACON_NOTIFICATION);
74 IWL_CMD(REPLY_TX_BEACON);
75 IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
76 IWL_CMD(QUIET_NOTIFICATION);
77 IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
78 IWL_CMD(MEASURE_ABORT_NOTIFICATION);
79 IWL_CMD(REPLY_BT_CONFIG);
80 IWL_CMD(REPLY_STATISTICS_CMD);
81 IWL_CMD(STATISTICS_NOTIFICATION);
82 IWL_CMD(REPLY_CARD_STATE_CMD);
83 IWL_CMD(CARD_STATE_NOTIFICATION);
84 IWL_CMD(MISSED_BEACONS_NOTIFICATION);
85 IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
86 IWL_CMD(SENSITIVITY_CMD);
87 IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
88 IWL_CMD(REPLY_RX_PHY_CMD);
89 IWL_CMD(REPLY_RX_MPDU_CMD);
90 IWL_CMD(REPLY_RX);
91 IWL_CMD(REPLY_COMPRESSED_BA);
92 IWL_CMD(CALIBRATION_CFG_CMD);
93 IWL_CMD(CALIBRATION_RES_NOTIFICATION);
94 IWL_CMD(CALIBRATION_COMPLETE_NOTIFICATION);
95 IWL_CMD(REPLY_TX_POWER_DBM_CMD);
96 IWL_CMD(TEMPERATURE_NOTIFICATION);
97 IWL_CMD(TX_ANT_CONFIGURATION_CMD);
98 IWL_CMD(REPLY_BT_COEX_PROFILE_NOTIF);
99 IWL_CMD(REPLY_BT_COEX_PRIO_TABLE);
100 IWL_CMD(REPLY_BT_COEX_PROT_ENV);
101 IWL_CMD(REPLY_WIPAN_PARAMS);
102 IWL_CMD(REPLY_WIPAN_RXON);
103 IWL_CMD(REPLY_WIPAN_RXON_TIMING);
104 IWL_CMD(REPLY_WIPAN_RXON_ASSOC);
105 IWL_CMD(REPLY_WIPAN_QOS_PARAM);
106 IWL_CMD(REPLY_WIPAN_WEPKEY);
107 IWL_CMD(REPLY_WIPAN_P2P_CHANNEL_SWITCH);
108 IWL_CMD(REPLY_WIPAN_NOA_NOTIFICATION);
109 IWL_CMD(REPLY_WIPAN_DEACTIVATION_COMPLETE);
110 default:
111 return "UNKNOWN";
112
113 }
114}
115
116#define HOST_COMPLETE_TIMEOUT (2 * HZ)
117
118static void iwl_generic_cmd_callback(struct iwl_priv *priv,
119 struct iwl_device_cmd *cmd,
120 struct iwl_rx_packet *pkt)
121{
122 if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
123 IWL_ERR(priv, "Bad return from %s (0x%08X)\n",
124 get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
125 return;
126 }
127
128#ifdef CONFIG_IWLWIFI_DEBUG
129 switch (cmd->hdr.cmd) {
130 case REPLY_TX_LINK_QUALITY_CMD:
131 case SENSITIVITY_CMD:
132 IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n",
133 get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
134 break;
135 default:
136 IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n",
137 get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
138 }
139#endif
140}
141
142static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
143{
144 int ret;
145
146 /* An asynchronous command can not expect an SKB to be set. */
147 if (WARN_ON(cmd->flags & CMD_WANT_SKB))
148 return -EINVAL;
149
150 /* Assign a generic callback if one is not provided */
151 if (!cmd->callback)
152 cmd->callback = iwl_generic_cmd_callback;
153
154 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
155 return -EBUSY;
156
157 ret = iwl_enqueue_hcmd(priv, cmd);
158 if (ret < 0) {
159 IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
160 get_cmd_string(cmd->id), ret);
161 return ret;
162 }
163 return 0;
164}
165
166static int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
167{
168 int cmd_idx;
169 int ret;
170
171 lockdep_assert_held(&priv->mutex);
172
173 /* A synchronous command can not have a callback set. */
174 if (WARN_ON(cmd->callback))
175 return -EINVAL;
176
177 IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
178 get_cmd_string(cmd->id));
179
180 set_bit(STATUS_HCMD_ACTIVE, &priv->status);
181 IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
182 get_cmd_string(cmd->id));
183
184 cmd_idx = iwl_enqueue_hcmd(priv, cmd);
185 if (cmd_idx < 0) {
186 ret = cmd_idx;
187 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
188 IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
189 get_cmd_string(cmd->id), ret);
190 return ret;
191 }
192
193 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
194 !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
195 HOST_COMPLETE_TIMEOUT);
196 if (!ret) {
197 if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
198 IWL_ERR(priv,
199 "Error sending %s: time out after %dms.\n",
200 get_cmd_string(cmd->id),
201 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
202
203 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
204 IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command %s\n",
205 get_cmd_string(cmd->id));
206 ret = -ETIMEDOUT;
207 goto cancel;
208 }
209 }
210
211 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
212 IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n",
213 get_cmd_string(cmd->id));
214 ret = -ECANCELED;
215 goto fail;
216 }
217 if (test_bit(STATUS_FW_ERROR, &priv->status)) {
218 IWL_ERR(priv, "Command %s failed: FW Error\n",
219 get_cmd_string(cmd->id));
220 ret = -EIO;
221 goto fail;
222 }
223 if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) {
224 IWL_ERR(priv, "Error: Response NULL in '%s'\n",
225 get_cmd_string(cmd->id));
226 ret = -EIO;
227 goto cancel;
228 }
229
230 return 0;
231
232cancel:
233 if (cmd->flags & CMD_WANT_SKB) {
234 /*
235 * Cancel the CMD_WANT_SKB flag for the cmd in the
236 * TX cmd queue. Otherwise in case the cmd comes
237 * in later, it will possibly set an invalid
238 * address (cmd->meta.source).
239 */
240 priv->txq[priv->cmd_queue].meta[cmd_idx].flags &=
241 ~CMD_WANT_SKB;
242 }
243fail:
244 if (cmd->reply_page) {
245 iwl_free_pages(priv, cmd->reply_page);
246 cmd->reply_page = 0;
247 }
248
249 return ret;
250}
251
252int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
253{
254 if (cmd->flags & CMD_ASYNC)
255 return iwl_send_cmd_async(priv, cmd);
256
257 return iwl_send_cmd_sync(priv, cmd);
258}
259
260int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, u16 len,
261 const void *data)
262{
263 struct iwl_host_cmd cmd = {
264 .id = id,
265 .len = { len, },
266 .data = { data, },
267 .flags = flags,
268 };
269
270 return iwl_send_cmd(priv, &cmd);
271}
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