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
35 #include "int.h"
36 #include "mib.h"
37 #include "tmacro.h"
38 #include "mac.h"
39 #include "power.h"
40 #include "bssdb.h"
41 #include "usbpipe.h"
42
43 /*--------------------- Static Definitions -------------------------*/
44 /* static int msglevel = MSG_LEVEL_DEBUG; */
45 static int msglevel = MSG_LEVEL_INFO;
46
47
48 /*--------------------- Static Classes ----------------------------*/
49
50 /*--------------------- Static Variables --------------------------*/
51
52 /*--------------------- Static Functions --------------------------*/
53
54 /*--------------------- Export Variables --------------------------*/
55
56
57 /*--------------------- Export Functions --------------------------*/
58
59
60 /*+
61 *
62 * Function: InterruptPollingThread
63 *
64 * Synopsis: Thread running at IRQL PASSIVE_LEVEL.
65 *
66 * Arguments: Device Extension
67 *
68 * Returns:
69 *
70 * Algorithm: Call USBD for input data;
71 *
72 * History: dd-mm-yyyy Author Comment
73 *
74 *
75 * Notes:
76 *
77 * USB reads are by nature 'Blocking', and when in a read, the device looks
78 * like it's in a 'stall' condition, so we deliberately time out every second
79 * if we've gotten no data
80 *
81 -*/
INTvWorkItem(void * Context)82 void INTvWorkItem(void *Context)
83 {
84 PSDevice pDevice = (PSDevice) Context;
85 int ntStatus;
86
87 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Interrupt Polling Thread\n");
88
89 spin_lock_irq(&pDevice->lock);
90 if (pDevice->fKillEventPollingThread != TRUE)
91 ntStatus = PIPEnsInterruptRead(pDevice);
92 spin_unlock_irq(&pDevice->lock);
93 }
94
INTnsProcessData(PSDevice pDevice)95 int INTnsProcessData(PSDevice pDevice)
96 {
97 int status = STATUS_SUCCESS;
98 PSINTData pINTData;
99 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
100 struct net_device_stats *pStats = &pDevice->stats;
101
102 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsInterruptProcessData\n");
103
104 pINTData = (PSINTData) pDevice->intBuf.pDataBuf;
105 if (pINTData->byTSR0 & TSR_VALID) {
106 STAvUpdateTDStatCounter(&(pDevice->scStatistic),
107 (BYTE) (pINTData->byPkt0 & 0x0F),
108 (BYTE) (pINTData->byPkt0>>4),
109 pINTData->byTSR0);
110 BSSvUpdateNodeTxCounter(pDevice,
111 &(pDevice->scStatistic),
112 pINTData->byTSR0,
113 pINTData->byPkt0);
114 /*DBG_PRN_GRP01(("TSR0 %02x\n", pINTData->byTSR0));*/
115 }
116 if (pINTData->byTSR1 & TSR_VALID) {
117 STAvUpdateTDStatCounter(&(pDevice->scStatistic),
118 (BYTE) (pINTData->byPkt1 & 0x0F),
119 (BYTE) (pINTData->byPkt1>>4),
120 pINTData->byTSR1);
121 BSSvUpdateNodeTxCounter(pDevice,
122 &(pDevice->scStatistic),
123 pINTData->byTSR1,
124 pINTData->byPkt1);
125 /*DBG_PRN_GRP01(("TSR1 %02x\n", pINTData->byTSR1));*/
126 }
127 if (pINTData->byTSR2 & TSR_VALID) {
128 STAvUpdateTDStatCounter(&(pDevice->scStatistic),
129 (BYTE) (pINTData->byPkt2 & 0x0F),
130 (BYTE) (pINTData->byPkt2>>4),
131 pINTData->byTSR2);
132 BSSvUpdateNodeTxCounter(pDevice,
133 &(pDevice->scStatistic),
134 pINTData->byTSR2,
135 pINTData->byPkt2);
136 /*DBG_PRN_GRP01(("TSR2 %02x\n", pINTData->byTSR2));*/
137 }
138 if (pINTData->byTSR3 & TSR_VALID) {
139 STAvUpdateTDStatCounter(&(pDevice->scStatistic),
140 (BYTE) (pINTData->byPkt3 & 0x0F),
141 (BYTE) (pINTData->byPkt3>>4),
142 pINTData->byTSR3);
143 BSSvUpdateNodeTxCounter(pDevice,
144 &(pDevice->scStatistic),
145 pINTData->byTSR3,
146 pINTData->byPkt3);
147 /*DBG_PRN_GRP01(("TSR3 %02x\n", pINTData->byTSR3));*/
148 }
149 if (pINTData->byISR0 != 0) {
150 if (pINTData->byISR0 & ISR_BNTX) {
151 if (pDevice->eOPMode == OP_MODE_AP) {
152 if (pMgmt->byDTIMCount > 0) {
153 pMgmt->byDTIMCount--;
154 pMgmt->sNodeDBTable[0].bRxPSPoll =
155 FALSE;
156 } else if (pMgmt->byDTIMCount == 0) {
157 /* check if mutltcast tx bufferring */
158 pMgmt->byDTIMCount =
159 pMgmt->byDTIMPeriod-1;
160 pMgmt->sNodeDBTable[0].bRxPSPoll = TRUE;
161 if (pMgmt->sNodeDBTable[0].bPSEnable)
162 bScheduleCommand((void *) pDevice,
163 WLAN_CMD_RX_PSPOLL,
164 NULL);
165 }
166 bScheduleCommand((void *) pDevice,
167 WLAN_CMD_BECON_SEND,
168 NULL);
169 } /* if (pDevice->eOPMode == OP_MODE_AP) */
170 pDevice->bBeaconSent = TRUE;
171 } else {
172 pDevice->bBeaconSent = FALSE;
173 }
174 if (pINTData->byISR0 & ISR_TBTT) {
175 if (pDevice->bEnablePSMode)
176 bScheduleCommand((void *) pDevice,
177 WLAN_CMD_TBTT_WAKEUP,
178 NULL);
179 if (pDevice->bChannelSwitch) {
180 pDevice->byChannelSwitchCount--;
181 if (pDevice->byChannelSwitchCount == 0)
182 bScheduleCommand((void *) pDevice,
183 WLAN_CMD_11H_CHSW,
184 NULL);
185 }
186 }
187 LODWORD(pDevice->qwCurrTSF) = pINTData->dwLoTSF;
188 HIDWORD(pDevice->qwCurrTSF) = pINTData->dwHiTSF;
189 /*DBG_PRN_GRP01(("ISR0 = %02x ,
190 LoTsf = %08x,
191 HiTsf = %08x\n",
192 pINTData->byISR0,
193 pINTData->dwLoTSF,
194 pINTData->dwHiTSF)); */
195
196 STAvUpdate802_11Counter(&pDevice->s802_11Counter,
197 &pDevice->scStatistic,
198 pINTData->byRTSSuccess,
199 pINTData->byRTSFail,
200 pINTData->byACKFail,
201 pINTData->byFCSErr);
202 STAvUpdateIsrStatCounter(&pDevice->scStatistic,
203 pINTData->byISR0,
204 pINTData->byISR1);
205 }
206
207 if (pINTData->byISR1 != 0)
208 if (pINTData->byISR1 & ISR_GPIO3)
209 bScheduleCommand((void *) pDevice,
210 WLAN_CMD_RADIO,
211 NULL);
212 pDevice->intBuf.uDataLen = 0;
213 pDevice->intBuf.bInUse = FALSE;
214
215 pStats->tx_packets = pDevice->scStatistic.ullTsrOK;
216 pStats->tx_bytes = pDevice->scStatistic.ullTxDirectedBytes +
217 pDevice->scStatistic.ullTxMulticastBytes +
218 pDevice->scStatistic.ullTxBroadcastBytes;
219 pStats->tx_errors = pDevice->scStatistic.dwTsrErr;
220 pStats->tx_dropped = pDevice->scStatistic.dwTsrErr;
221
222 return status;
223 }
224