Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * |
| 20 | * File: int.c |
| 21 | * |
| 22 | * Purpose: Handle USB interrupt endpoint |
| 23 | * |
| 24 | * Author: Jerry Chen |
| 25 | * |
| 26 | * Date: Apr. 2, 2004 |
| 27 | * |
| 28 | * Functions: |
| 29 | * |
| 30 | * Revision History: |
| 31 | * 04-02-2004 Jerry Chen: Initial release |
| 32 | * |
| 33 | */ |
| 34 | |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 35 | #include "int.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 36 | #include "tmacro.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 37 | #include "mac.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 38 | #include "power.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 39 | #include "bssdb.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 40 | #include "usbpipe.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 41 | |
Jesper Juhl | ea15b7b | 2012-06-27 22:01:18 +0200 | [diff] [blame] | 42 | static int msglevel = MSG_LEVEL_INFO; /* MSG_LEVEL_DEBUG */ |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 43 | |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 44 | /*+ |
| 45 | * |
| 46 | * Function: InterruptPollingThread |
| 47 | * |
| 48 | * Synopsis: Thread running at IRQL PASSIVE_LEVEL. |
| 49 | * |
| 50 | * Arguments: Device Extension |
| 51 | * |
| 52 | * Returns: |
| 53 | * |
| 54 | * Algorithm: Call USBD for input data; |
| 55 | * |
| 56 | * History: dd-mm-yyyy Author Comment |
| 57 | * |
| 58 | * |
| 59 | * Notes: |
| 60 | * |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 61 | * USB reads are by nature 'Blocking', and when in a read, the device looks |
| 62 | * like it's in a 'stall' condition, so we deliberately time out every second |
| 63 | * if we've gotten no data |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 64 | * |
| 65 | -*/ |
Malcolm Priestley | fe5d00e | 2012-12-10 22:14:36 +0000 | [diff] [blame] | 66 | void INTvWorkItem(struct vnt_private *pDevice) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 67 | { |
Andres More | 6487c49 | 2010-08-02 20:51:57 -0300 | [diff] [blame] | 68 | int ntStatus; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 69 | |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 70 | DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Interrupt Polling Thread\n"); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 71 | |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 72 | spin_lock_irq(&pDevice->lock); |
Malcolm Priestley | 749627f | 2014-02-17 21:24:33 +0000 | [diff] [blame] | 73 | |
| 74 | ntStatus = PIPEnsInterruptRead(pDevice); |
| 75 | |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 76 | spin_unlock_irq(&pDevice->lock); |
| 77 | } |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 78 | |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 79 | void INTnsProcessData(struct vnt_private *priv) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 80 | { |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 81 | struct vnt_interrupt_data *int_data; |
| 82 | struct vnt_manager *mgmt = &priv->vnt_mgmt; |
| 83 | struct net_device_stats *stats = &priv->stats; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 84 | |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 85 | DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsInterruptProcessData\n"); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 86 | |
Malcolm Priestley | f764e00 | 2014-02-19 18:39:09 +0000 | [diff] [blame] | 87 | int_data = (struct vnt_interrupt_data *)priv->int_buf.data_buf; |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 88 | |
| 89 | if (int_data->tsr0 & TSR_VALID) { |
| 90 | if (int_data->tsr0 & (TSR_TMO | TSR_RETRYTMO)) |
| 91 | priv->wstats.discard.retries++; |
Malcolm Priestley | ae27b14 | 2013-12-09 22:23:19 +0000 | [diff] [blame] | 92 | else |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 93 | stats->tx_packets++; |
Malcolm Priestley | ae27b14 | 2013-12-09 22:23:19 +0000 | [diff] [blame] | 94 | |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 95 | BSSvUpdateNodeTxCounter(priv, |
| 96 | int_data->tsr0, |
| 97 | int_data->pkt0); |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 98 | } |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 99 | |
| 100 | if (int_data->tsr1 & TSR_VALID) { |
| 101 | if (int_data->tsr1 & (TSR_TMO | TSR_RETRYTMO)) |
| 102 | priv->wstats.discard.retries++; |
Malcolm Priestley | ae27b14 | 2013-12-09 22:23:19 +0000 | [diff] [blame] | 103 | else |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 104 | stats->tx_packets++; |
Malcolm Priestley | ae27b14 | 2013-12-09 22:23:19 +0000 | [diff] [blame] | 105 | |
| 106 | |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 107 | BSSvUpdateNodeTxCounter(priv, |
| 108 | int_data->tsr1, |
| 109 | int_data->pkt1); |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 110 | } |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 111 | |
| 112 | if (int_data->tsr2 & TSR_VALID) { |
| 113 | if (int_data->tsr2 & (TSR_TMO | TSR_RETRYTMO)) |
| 114 | priv->wstats.discard.retries++; |
Malcolm Priestley | ae27b14 | 2013-12-09 22:23:19 +0000 | [diff] [blame] | 115 | else |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 116 | stats->tx_packets++; |
Malcolm Priestley | ae27b14 | 2013-12-09 22:23:19 +0000 | [diff] [blame] | 117 | |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 118 | BSSvUpdateNodeTxCounter(priv, |
| 119 | int_data->tsr2, |
| 120 | int_data->pkt2); |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 121 | } |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 122 | |
| 123 | if (int_data->tsr3 & TSR_VALID) { |
| 124 | if (int_data->tsr3 & (TSR_TMO | TSR_RETRYTMO)) |
| 125 | priv->wstats.discard.retries++; |
Malcolm Priestley | ae27b14 | 2013-12-09 22:23:19 +0000 | [diff] [blame] | 126 | else |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 127 | stats->tx_packets++; |
Malcolm Priestley | ae27b14 | 2013-12-09 22:23:19 +0000 | [diff] [blame] | 128 | |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 129 | BSSvUpdateNodeTxCounter(priv, |
| 130 | int_data->tsr3, |
| 131 | int_data->pkt3); |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 132 | } |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 133 | |
| 134 | if (int_data->isr0 != 0) { |
| 135 | if (int_data->isr0 & ISR_BNTX) { |
| 136 | if (priv->op_mode == NL80211_IFTYPE_AP) { |
| 137 | if (mgmt->byDTIMCount > 0) { |
| 138 | mgmt->byDTIMCount--; |
| 139 | mgmt->sNodeDBTable[0].bRxPSPoll = |
Andres More | e269fc2 | 2013-02-12 20:36:29 -0500 | [diff] [blame] | 140 | false; |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 141 | } else if (mgmt->byDTIMCount == 0) { |
Justin P. Mattock | a0a1f61 | 2012-08-26 08:16:43 -0700 | [diff] [blame] | 142 | /* check if multicast tx buffering */ |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 143 | mgmt->byDTIMCount = |
| 144 | mgmt->byDTIMPeriod-1; |
| 145 | mgmt->sNodeDBTable[0].bRxPSPoll = true; |
| 146 | if (mgmt->sNodeDBTable[0].bPSEnable) |
| 147 | bScheduleCommand((void *) priv, |
Andres More | 0cbd8d9 | 2010-05-06 20:34:29 -0300 | [diff] [blame] | 148 | WLAN_CMD_RX_PSPOLL, |
| 149 | NULL); |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 150 | } |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 151 | bScheduleCommand((void *) priv, |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 152 | WLAN_CMD_BECON_SEND, |
| 153 | NULL); |
Malcolm Priestley | a0ad277 | 2014-02-15 21:56:20 +0000 | [diff] [blame] | 154 | } |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 155 | priv->bBeaconSent = true; |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 156 | } else { |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 157 | priv->bBeaconSent = false; |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 158 | } |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 159 | |
| 160 | if (int_data->isr0 & ISR_TBTT) { |
| 161 | if (priv->bEnablePSMode) |
| 162 | bScheduleCommand((void *) priv, |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 163 | WLAN_CMD_TBTT_WAKEUP, |
| 164 | NULL); |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 165 | if (priv->bChannelSwitch) { |
| 166 | priv->byChannelSwitchCount--; |
| 167 | if (priv->byChannelSwitchCount == 0) |
| 168 | bScheduleCommand((void *) priv, |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 169 | WLAN_CMD_11H_CHSW, |
| 170 | NULL); |
| 171 | } |
| 172 | } |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 173 | priv->qwCurrTSF = le64_to_cpu(int_data->tsf); |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 174 | } |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 175 | |
| 176 | if (int_data->isr1 != 0) |
| 177 | if (int_data->isr1 & ISR_GPIO3) |
| 178 | bScheduleCommand((void *) priv, |
Daniel Kenji Toyama | ff8041b | 2010-03-30 00:28:19 +1100 | [diff] [blame] | 179 | WLAN_CMD_RADIO, |
| 180 | NULL); |
Malcolm Priestley | f764e00 | 2014-02-19 18:39:09 +0000 | [diff] [blame] | 181 | |
| 182 | priv->int_buf.in_use = false; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 183 | |
Malcolm Priestley | 210098a | 2014-02-16 19:10:18 +0000 | [diff] [blame] | 184 | stats->tx_errors = priv->wstats.discard.retries; |
| 185 | stats->tx_dropped = priv->wstats.discard.retries; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 186 | } |