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openwrt/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/ar6000/ar6000_drv.c

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/*
*
* Copyright (c) 2004-2007 Atheros Communications Inc.
* All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
*
*
*/
/*
* This driver is a pseudo ethernet driver to access the Atheros AR6000
* WLAN Device
*/
static const char athId[] __attribute__ ((unused)) = "$Id: //depot/sw/releases/olca2.0-GPL/host/os/linux/ar6000_drv.c#2 $";
#include "ar6000_drv.h"
#include "htc.h"
MODULE_LICENSE("GPL and additional rights");
#ifndef REORG_APTC_HEURISTICS
#undef ADAPTIVE_POWER_THROUGHPUT_CONTROL
#endif /* REORG_APTC_HEURISTICS */
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
#define APTC_TRAFFIC_SAMPLING_INTERVAL 100 /* msec */
#define APTC_UPPER_THROUGHPUT_THRESHOLD 3000 /* Kbps */
#define APTC_LOWER_THROUGHPUT_THRESHOLD 2000 /* Kbps */
typedef struct aptc_traffic_record {
A_BOOL timerScheduled;
struct timeval samplingTS;
unsigned long bytesReceived;
unsigned long bytesTransmitted;
} APTC_TRAFFIC_RECORD;
A_TIMER aptcTimer;
APTC_TRAFFIC_RECORD aptcTR;
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
int bmienable = 0;
unsigned int bypasswmi = 0;
unsigned int debuglevel = 0;
int tspecCompliance = 1;
unsigned int busspeedlow = 0;
unsigned int onebitmode = 0;
unsigned int skipflash = 0;
unsigned int wmitimeout = 2;
unsigned int wlanNodeCaching = 1;
unsigned int enableuartprint = 0;
unsigned int logWmiRawMsgs = 0;
unsigned int enabletimerwar = 0;
unsigned int mbox_yield_limit = 99;
int reduce_credit_dribble = 1 + HTC_CONNECT_FLAGS_THRESHOLD_LEVEL_ONE_HALF;
int allow_trace_signal = 0;
#ifdef CONFIG_HOST_TCMD_SUPPORT
unsigned int testmode =0;
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
module_param(bmienable, int, 0644);
module_param(bypasswmi, int, 0644);
module_param(debuglevel, int, 0644);
module_param(tspecCompliance, int, 0644);
module_param(onebitmode, int, 0644);
module_param(busspeedlow, int, 0644);
module_param(skipflash, int, 0644);
module_param(wmitimeout, int, 0644);
module_param(wlanNodeCaching, int, 0644);
module_param(logWmiRawMsgs, int, 0644);
module_param(enableuartprint, int, 0644);
module_param(enabletimerwar, int, 0644);
module_param(mbox_yield_limit, int, 0644);
module_param(reduce_credit_dribble, int, 0644);
module_param(allow_trace_signal, int, 0644);
#ifdef CONFIG_HOST_TCMD_SUPPORT
module_param(testmode, int, 0644);
#endif
#else
#define __user
/* for linux 2.4 and lower */
MODULE_PARM(bmienable,"i");
MODULE_PARM(bypasswmi,"i");
MODULE_PARM(debuglevel, "i");
MODULE_PARM(onebitmode,"i");
MODULE_PARM(busspeedlow, "i");
MODULE_PARM(skipflash, "i");
MODULE_PARM(wmitimeout, "i");
MODULE_PARM(wlanNodeCaching, "i");
MODULE_PARM(enableuartprint,"i");
MODULE_PARM(logWmiRawMsgs, "i");
MODULE_PARM(enabletimerwar,"i");
MODULE_PARM(mbox_yield_limit,"i");
MODULE_PARM(reduce_credit_dribble,"i");
MODULE_PARM(allow_trace_signal,"i");
#ifdef CONFIG_HOST_TCMD_SUPPORT
MODULE_PARM(testmode, "i");
#endif
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
/* in 2.6.10 and later this is now a pointer to a uint */
unsigned int _mboxnum = HTC_MAILBOX_NUM_MAX;
#define mboxnum &_mboxnum
#else
unsigned int mboxnum = HTC_MAILBOX_NUM_MAX;
#endif
#ifdef CONFIG_AR6000_WLAN_RESET
unsigned int resetok = 1;
#else
unsigned int resetok = 0;
#endif
#ifdef DEBUG
A_UINT32 g_dbg_flags = DBG_DEFAULTS;
unsigned int debugflags = 0;
int debugdriver = 1;
unsigned int debughtc = 128;
unsigned int debugbmi = 1;
unsigned int debughif = 2;
unsigned int txcreditsavailable[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int txcreditsconsumed[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int txcreditintrenable[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int txcreditintrenableaggregate[HTC_MAILBOX_NUM_MAX] = {0};
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
module_param(debugflags, int, 0644);
module_param(debugdriver, int, 0644);
module_param(debughtc, int, 0644);
module_param(debugbmi, int, 0644);
module_param(debughif, int, 0644);
module_param(resetok, int, 0644);
module_param_array(txcreditsavailable, int, mboxnum, 0644);
module_param_array(txcreditsconsumed, int, mboxnum, 0644);
module_param_array(txcreditintrenable, int, mboxnum, 0644);
module_param_array(txcreditintrenableaggregate, int, mboxnum, 0644);
#else
/* linux 2.4 and lower */
MODULE_PARM(debugflags,"i");
MODULE_PARM(debugdriver, "i");
MODULE_PARM(debughtc, "i");
MODULE_PARM(debugbmi, "i");
MODULE_PARM(debughif, "i");
MODULE_PARM(resetok, "i");
MODULE_PARM(txcreditsavailable, "0-3i");
MODULE_PARM(txcreditsconsumed, "0-3i");
MODULE_PARM(txcreditintrenable, "0-3i");
MODULE_PARM(txcreditintrenableaggregate, "0-3i");
#endif
#endif /* DEBUG */
unsigned int tx_attempt[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int tx_post[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int tx_complete[HTC_MAILBOX_NUM_MAX] = {0};
unsigned int hifBusRequestNumMax = 40;
unsigned int war23838_disabled = 0;
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
unsigned int enableAPTCHeuristics = 1;
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
module_param_array(tx_attempt, int, mboxnum, 0644);
module_param_array(tx_post, int, mboxnum, 0644);
module_param_array(tx_complete, int, mboxnum, 0644);
module_param(hifBusRequestNumMax, int, 0644);
module_param(war23838_disabled, int, 0644);
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
module_param(enableAPTCHeuristics, int, 0644);
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
#else
MODULE_PARM(tx_attempt, "0-3i");
MODULE_PARM(tx_post, "0-3i");
MODULE_PARM(tx_complete, "0-3i");
MODULE_PARM(hifBusRequestNumMax, "i");
MODULE_PARM(war23838_disabled, "i");
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
MODULE_PARM(enableAPTCHeuristics, "i");
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
#endif
#ifdef BLOCK_TX_PATH_FLAG
int blocktx = 0;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
module_param(blocktx, int, 0644);
#else
MODULE_PARM(blocktx, "i");
#endif
#endif /* BLOCK_TX_PATH_FLAG */
// TODO move to arsoft_c
USER_RSSI_THOLD rssi_map[12];
int reconnect_flag = 0;
DECLARE_WAIT_QUEUE_HEAD(ar6000_scan_queue);
/* Function declarations */
static int ar6000_init_module(void);
static void ar6000_cleanup_module(void);
int ar6000_init(struct net_device *dev);
static int ar6000_open(struct net_device *dev);
static int ar6000_close(struct net_device *dev);
static void ar6000_init_control_info(AR_SOFTC_T *ar);
static int ar6000_data_tx(struct sk_buff *skb, struct net_device *dev);
static void ar6000_destroy(struct net_device *dev, unsigned int unregister);
static void ar6000_detect_error(unsigned long ptr);
static struct net_device_stats *ar6000_get_stats(struct net_device *dev);
static struct iw_statistics *ar6000_get_iwstats(struct net_device * dev);
/*
* HTC service connection handlers
*/
static void ar6000_avail_ev(HTC_HANDLE HTCHandle);
static void ar6000_unavail_ev(void *Instance);
static void ar6000_target_failure(void *Instance, A_STATUS Status);
static void ar6000_rx(void *Context, HTC_PACKET *pPacket);
static void ar6000_rx_refill(void *Context,HTC_ENDPOINT_ID Endpoint);
static void ar6000_tx_complete(void *Context, HTC_PACKET *pPacket);
static void ar6000_tx_queue_full(void *Context, HTC_ENDPOINT_ID Endpoint);
static void ar6000_tx_queue_avail(void *Context, HTC_ENDPOINT_ID Endpoint);
/*
* Static variables
*/
static struct net_device *ar6000_devices[MAX_AR6000];
extern struct iw_handler_def ath_iw_handler_def;
DECLARE_WAIT_QUEUE_HEAD(arEvent);
static void ar6000_cookie_init(AR_SOFTC_T *ar);
static void ar6000_cookie_cleanup(AR_SOFTC_T *ar);
static void ar6000_free_cookie(AR_SOFTC_T *ar, struct ar_cookie * cookie);
static struct ar_cookie *ar6000_alloc_cookie(AR_SOFTC_T *ar);
static void ar6000_TxDataCleanup(AR_SOFTC_T *ar);
#ifdef USER_KEYS
static A_STATUS ar6000_reinstall_keys(AR_SOFTC_T *ar,A_UINT8 key_op_ctrl);
#endif
static struct ar_cookie s_ar_cookie_mem[MAX_COOKIE_NUM];
#define HOST_INTEREST_ITEM_ADDRESS(ar, item) \
((ar->arTargetType == TARGET_TYPE_AR6001) ? \
AR6001_HOST_INTEREST_ITEM_ADDRESS(item) : \
AR6002_HOST_INTEREST_ITEM_ADDRESS(item))
/* Debug log support */
/*
* Flag to govern whether the debug logs should be parsed in the kernel
* or reported to the application.
*/
#ifdef DEBUG
#define REPORT_DEBUG_LOGS_TO_APP
#endif
A_STATUS
ar6000_set_host_app_area(AR_SOFTC_T *ar)
{
A_UINT32 address, data;
struct host_app_area_s host_app_area;
/* Fetch the address of the host_app_area_s instance in the host interest area */
address = HOST_INTEREST_ITEM_ADDRESS(ar, hi_app_host_interest);
if (ar6000_ReadRegDiag(ar->arHifDevice, &address, &data) != A_OK) {
return A_ERROR;
}
address = data;
host_app_area.wmi_protocol_ver = WMI_PROTOCOL_VERSION;
if (ar6000_WriteDataDiag(ar->arHifDevice, address,
(A_UCHAR *)&host_app_area,
sizeof(struct host_app_area_s)) != A_OK)
{
return A_ERROR;
}
return A_OK;
}
A_UINT32
dbglog_get_debug_hdr_ptr(AR_SOFTC_T *ar)
{
A_UINT32 param;
A_UINT32 address;
A_STATUS status;
address = HOST_INTEREST_ITEM_ADDRESS(ar, hi_dbglog_hdr);
if ((status = ar6000_ReadDataDiag(ar->arHifDevice, address,
(A_UCHAR *)&param, 4)) != A_OK)
{
param = 0;
}
return param;
}
/*
* The dbglog module has been initialized. Its ok to access the relevant
* data stuctures over the diagnostic window.
*/
void
ar6000_dbglog_init_done(AR_SOFTC_T *ar)
{
ar->dbglog_init_done = TRUE;
}
A_UINT32
dbglog_get_debug_fragment(A_INT8 *datap, A_UINT32 len, A_UINT32 limit)
{
A_INT32 *buffer;
A_UINT32 count;
A_UINT32 numargs;
A_UINT32 length;
A_UINT32 fraglen;
count = fraglen = 0;
buffer = (A_INT32 *)datap;
length = (limit >> 2);
if (len <= limit) {
fraglen = len;
} else {
while (count < length) {
numargs = DBGLOG_GET_NUMARGS(buffer[count]);
fraglen = (count << 2);
count += numargs + 1;
}
}
return fraglen;
}
void
dbglog_parse_debug_logs(A_INT8 *datap, A_UINT32 len)
{
A_INT32 *buffer;
A_UINT32 count;
A_UINT32 timestamp;
A_UINT32 debugid;
A_UINT32 moduleid;
A_UINT32 numargs;
A_UINT32 length;
count = 0;
buffer = (A_INT32 *)datap;
length = (len >> 2);
while (count < length) {
debugid = DBGLOG_GET_DBGID(buffer[count]);
moduleid = DBGLOG_GET_MODULEID(buffer[count]);
numargs = DBGLOG_GET_NUMARGS(buffer[count]);
timestamp = DBGLOG_GET_TIMESTAMP(buffer[count]);
switch (numargs) {
case 0:
AR_DEBUG_PRINTF("%d %d (%d)\n", moduleid, debugid, timestamp);
break;
case 1:
AR_DEBUG_PRINTF("%d %d (%d): 0x%x\n", moduleid, debugid,
timestamp, buffer[count+1]);
break;
case 2:
AR_DEBUG_PRINTF("%d %d (%d): 0x%x, 0x%x\n", moduleid, debugid,
timestamp, buffer[count+1], buffer[count+2]);
break;
default:
AR_DEBUG_PRINTF("Invalid args: %d\n", numargs);
}
count += numargs + 1;
}
}
int
ar6000_dbglog_get_debug_logs(AR_SOFTC_T *ar)
{
struct dbglog_hdr_s debug_hdr;
struct dbglog_buf_s debug_buf;
A_UINT32 address;
A_UINT32 length;
A_UINT32 dropped;
A_UINT32 firstbuf;
A_UINT32 debug_hdr_ptr;
if (!ar->dbglog_init_done) return A_ERROR;
#ifndef CONFIG_AR6000_WLAN_DEBUG
return 0;
#endif
AR6000_SPIN_LOCK(&ar->arLock, 0);
if (ar->dbgLogFetchInProgress) {
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
return A_EBUSY;
}
/* block out others */
ar->dbgLogFetchInProgress = TRUE;
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
debug_hdr_ptr = dbglog_get_debug_hdr_ptr(ar);
printk("debug_hdr_ptr: 0x%x\n", debug_hdr_ptr);
/* Get the contents of the ring buffer */
if (debug_hdr_ptr) {
address = debug_hdr_ptr;
length = sizeof(struct dbglog_hdr_s);
ar6000_ReadDataDiag(ar->arHifDevice, address,
(A_UCHAR *)&debug_hdr, length);
address = (A_UINT32)debug_hdr.dbuf;
firstbuf = address;
dropped = debug_hdr.dropped;
length = sizeof(struct dbglog_buf_s);
ar6000_ReadDataDiag(ar->arHifDevice, address,
(A_UCHAR *)&debug_buf, length);
do {
address = (A_UINT32)debug_buf.buffer;
length = debug_buf.length;
if ((length) && (debug_buf.length <= debug_buf.bufsize)) {
/* Rewind the index if it is about to overrun the buffer */
if (ar->log_cnt > (DBGLOG_HOST_LOG_BUFFER_SIZE - length)) {
ar->log_cnt = 0;
}
if(A_OK != ar6000_ReadDataDiag(ar->arHifDevice, address,
(A_UCHAR *)&ar->log_buffer[ar->log_cnt], length))
{
break;
}
ar6000_dbglog_event(ar, dropped, &ar->log_buffer[ar->log_cnt], length);
ar->log_cnt += length;
} else {
AR_DEBUG_PRINTF("Length: %d (Total size: %d)\n",
debug_buf.length, debug_buf.bufsize);
}
address = (A_UINT32)debug_buf.next;
length = sizeof(struct dbglog_buf_s);
if(A_OK != ar6000_ReadDataDiag(ar->arHifDevice, address,
(A_UCHAR *)&debug_buf, length))
{
break;
}
} while (address != firstbuf);
}
ar->dbgLogFetchInProgress = FALSE;
return A_OK;
}
void
ar6000_dbglog_event(AR_SOFTC_T *ar, A_UINT32 dropped,
A_INT8 *buffer, A_UINT32 length)
{
#ifdef REPORT_DEBUG_LOGS_TO_APP
#define MAX_WIRELESS_EVENT_SIZE 252
/*
* Break it up into chunks of MAX_WIRELESS_EVENT_SIZE bytes of messages.
* There seems to be a limitation on the length of message that could be
* transmitted to the user app via this mechanism.
*/
A_UINT32 send, sent;
sent = 0;
send = dbglog_get_debug_fragment(&buffer[sent], length - sent,
MAX_WIRELESS_EVENT_SIZE);
while (send) {
ar6000_send_event_to_app(ar, WMIX_DBGLOG_EVENTID, &buffer[sent], send);
sent += send;
send = dbglog_get_debug_fragment(&buffer[sent], length - sent,
MAX_WIRELESS_EVENT_SIZE);
}
#else
AR_DEBUG_PRINTF("Dropped logs: 0x%x\nDebug info length: %d\n",
dropped, length);
/* Interpret the debug logs */
dbglog_parse_debug_logs(buffer, length);
#endif /* REPORT_DEBUG_LOGS_TO_APP */
}
static int __init
ar6000_init_module(void)
{
static int probed = 0;
A_STATUS status;
HTC_INIT_INFO initInfo;
A_MEMZERO(&initInfo,sizeof(initInfo));
initInfo.AddInstance = ar6000_avail_ev;
initInfo.DeleteInstance = ar6000_unavail_ev;
initInfo.TargetFailure = ar6000_target_failure;
#ifdef DEBUG
/* Set the debug flags if specified at load time */
if(debugflags != 0)
{
g_dbg_flags = debugflags;
}
#endif
if (probed) {
return -ENODEV;
}
probed++;
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
memset(&aptcTR, 0, sizeof(APTC_TRAFFIC_RECORD));
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
#ifdef CONFIG_HOST_GPIO_SUPPORT
ar6000_gpio_init();
#endif /* CONFIG_HOST_GPIO_SUPPORT */
status = HTCInit(&initInfo);
if(status != A_OK)
return -ENODEV;
return 0;
}
static void __exit
ar6000_cleanup_module(void)
{
int i = 0;
struct net_device *ar6000_netdev;
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
/* Delete the Adaptive Power Control timer */
if (timer_pending(&aptcTimer)) {
del_timer_sync(&aptcTimer);
}
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
for (i=0; i < MAX_AR6000; i++) {
if (ar6000_devices[i] != NULL) {
ar6000_netdev = ar6000_devices[i];
ar6000_devices[i] = NULL;
ar6000_destroy(ar6000_netdev, 1);
}
}
/* shutting down HTC will cause the HIF layer to detach from the
* underlying bus driver which will cause the subsequent deletion of
* all HIF and HTC instances */
HTCShutDown();
AR_DEBUG_PRINTF("ar6000_cleanup: success\n");
}
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
void
aptcTimerHandler(unsigned long arg)
{
A_UINT32 numbytes;
A_UINT32 throughput;
AR_SOFTC_T *ar;
A_STATUS status;
ar = (AR_SOFTC_T *)arg;
A_ASSERT(ar != NULL);
A_ASSERT(!timer_pending(&aptcTimer));
AR6000_SPIN_LOCK(&ar->arLock, 0);
/* Get the number of bytes transferred */
numbytes = aptcTR.bytesTransmitted + aptcTR.bytesReceived;
aptcTR.bytesTransmitted = aptcTR.bytesReceived = 0;
/* Calculate and decide based on throughput thresholds */
throughput = ((numbytes * 8)/APTC_TRAFFIC_SAMPLING_INTERVAL); /* Kbps */
if (throughput < APTC_LOWER_THROUGHPUT_THRESHOLD) {
/* Enable Sleep and delete the timer */
A_ASSERT(ar->arWmiReady == TRUE);
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
status = wmi_powermode_cmd(ar->arWmi, REC_POWER);
AR6000_SPIN_LOCK(&ar->arLock, 0);
A_ASSERT(status == A_OK);
aptcTR.timerScheduled = FALSE;
} else {
A_TIMEOUT_MS(&aptcTimer, APTC_TRAFFIC_SAMPLING_INTERVAL, 0);
}
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
}
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
/* set HTC block size, assume BMI is already initialized */
A_STATUS ar6000_SetHTCBlockSize(AR_SOFTC_T *ar)
{
A_STATUS status;
A_UINT32 blocksizes[HTC_MAILBOX_NUM_MAX];
do {
/* get the block sizes */
status = HIFConfigureDevice(ar->arHifDevice, HIF_DEVICE_GET_MBOX_BLOCK_SIZE,
blocksizes, sizeof(blocksizes));
if (A_FAILED(status)) {
AR_DEBUG_PRINTF("Failed to get block size info from HIF layer...\n");
break;
}
/* note: we actually get the block size for mailbox 1, for SDIO the block
* size on mailbox 0 is artificially set to 1 */
/* must be a power of 2 */
A_ASSERT((blocksizes[1] & (blocksizes[1] - 1)) == 0);
/* set the host interest area for the block size */
status = BMIWriteMemory(ar->arHifDevice,
HOST_INTEREST_ITEM_ADDRESS(ar, hi_mbox_io_block_sz),
(A_UCHAR *)&blocksizes[1],
4);
if (A_FAILED(status)) {
AR_DEBUG_PRINTF("BMIWriteMemory for IO block size failed \n");
break;
}
AR_DEBUG_PRINTF("Block Size Set: %d (target address:0x%X)\n",
blocksizes[1], HOST_INTEREST_ITEM_ADDRESS(ar, hi_mbox_io_block_sz));
/* set the host interest area for the mbox ISR yield limit */
status = BMIWriteMemory(ar->arHifDevice,
HOST_INTEREST_ITEM_ADDRESS(ar, hi_mbox_isr_yield_limit),
(A_UCHAR *)&mbox_yield_limit,
4);
if (A_FAILED(status)) {
AR_DEBUG_PRINTF("BMIWriteMemory for yield limit failed \n");
break;
}
} while (FALSE);
return status;
}
static void free_raw_buffers(AR_SOFTC_T *ar)
{
int i, j;
for (i = 0; i != HTC_RAW_STREAM_NUM_MAX; i++) {
for (j = 0; j != RAW_HTC_READ_BUFFERS_NUM; j++)
kfree(ar->raw_htc_read_buffer[i][j]);
for (j = 0; j != RAW_HTC_WRITE_BUFFERS_NUM; j++)
kfree(ar->raw_htc_write_buffer[i][j]);
}
}
static int alloc_raw_buffers(AR_SOFTC_T *ar)
{
int i, j;
raw_htc_buffer *b;
for (i = 0; i != HTC_RAW_STREAM_NUM_MAX; i++) {
for (j = 0; j != RAW_HTC_READ_BUFFERS_NUM; j++) {
b = kzalloc(sizeof(*b), GFP_KERNEL);
if (!b)
return -ENOMEM;
ar->raw_htc_read_buffer[i][j] = b;
}
for (j = 0; j != RAW_HTC_WRITE_BUFFERS_NUM; j++) {
b = kzalloc(sizeof(*b), GFP_KERNEL);
if (!b)
return -ENOMEM;
ar->raw_htc_write_buffer[i][j] = b;
}
}
return 0;
}
/*
* HTC Event handlers
*/
static void
ar6000_avail_ev(HTC_HANDLE HTCHandle)
{
int i;
struct net_device *dev;
AR_SOFTC_T *ar;
int device_index = 0;
AR_DEBUG_PRINTF("ar6000_available\n");
for (i=0; i < MAX_AR6000; i++) {
if (ar6000_devices[i] == NULL) {
break;
}
}
if (i == MAX_AR6000) {
AR_DEBUG_PRINTF("ar6000_available: max devices reached\n");
return;
}
/* Save this. It gives a bit better readability especially since */
/* we use another local "i" variable below. */
device_index = i;
A_ASSERT(HTCHandle != NULL);
dev = alloc_etherdev(sizeof(AR_SOFTC_T));
if (dev == NULL) {
AR_DEBUG_PRINTF("ar6000_available: can't alloc etherdev\n");
return;
}
ether_setup(dev);
if (netdev_priv(dev) == NULL) {
printk(KERN_CRIT "ar6000_available: Could not allocate memory\n");
return;
}
A_MEMZERO(netdev_priv(dev), sizeof(AR_SOFTC_T));
ar = (AR_SOFTC_T *)netdev_priv(dev);
ar->arNetDev = dev;
ar->arHtcTarget = HTCHandle;
ar->arHifDevice = HTCGetHifDevice(HTCHandle);
ar->arWlanState = WLAN_ENABLED;
ar->arRadioSwitch = WLAN_ENABLED;
ar->arDeviceIndex = device_index;
A_INIT_TIMER(&ar->arHBChallengeResp.timer, ar6000_detect_error, dev);
ar->arHBChallengeResp.seqNum = 0;
ar->arHBChallengeResp.outstanding = FALSE;
ar->arHBChallengeResp.missCnt = 0;
ar->arHBChallengeResp.frequency = AR6000_HB_CHALLENGE_RESP_FREQ_DEFAULT;
ar->arHBChallengeResp.missThres = AR6000_HB_CHALLENGE_RESP_MISS_THRES_DEFAULT;
ar6000_init_control_info(ar);
init_waitqueue_head(&arEvent);
sema_init(&ar->arSem, 1);
if (alloc_raw_buffers(ar)) {
free_raw_buffers(ar);
/*
* @@@ Clean up our own mess, but for anything else, cheerfully mimick
* the beautiful error non-handling of the rest of this function.
*/
return;
}
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
A_INIT_TIMER(&aptcTimer, aptcTimerHandler, ar);
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
/*
* If requested, perform some magic which requires no cooperation from
* the Target. It causes the Target to ignore flash and execute to the
* OS from ROM.
*
* This is intended to support recovery from a corrupted flash on Targets
* that support flash.
*/
if (skipflash)
{
ar6000_reset_device_skipflash(ar->arHifDevice);
}
BMIInit();
{
struct bmi_target_info targ_info;
if (BMIGetTargetInfo(ar->arHifDevice, &targ_info) != A_OK) {
return;
}
ar->arVersion.target_ver = targ_info.target_ver;
ar->arTargetType = targ_info.target_type;
}
if (enableuartprint) {
A_UINT32 param;
param = 1;
if (BMIWriteMemory(ar->arHifDevice,
HOST_INTEREST_ITEM_ADDRESS(ar, hi_serial_enable),
(A_UCHAR *)&param,
4)!= A_OK)
{
AR_DEBUG_PRINTF("BMIWriteMemory for enableuartprint failed \n");
return ;
}
AR_DEBUG_PRINTF("Serial console prints enabled\n");
}
#ifdef CONFIG_HOST_TCMD_SUPPORT
if(testmode) {
ar->arTargetMode = AR6000_TCMD_MODE;
}else {
ar->arTargetMode = AR6000_WLAN_MODE;
}
#endif
if (enabletimerwar) {
A_UINT32 param;
if (BMIReadMemory(ar->arHifDevice,
HOST_INTEREST_ITEM_ADDRESS(ar, hi_option_flag),
(A_UCHAR *)&param,
4)!= A_OK)
{
AR_DEBUG_PRINTF("BMIReadMemory for enabletimerwar failed \n");
return;
}
param |= HI_OPTION_TIMER_WAR;
if (BMIWriteMemory(ar->arHifDevice,
HOST_INTEREST_ITEM_ADDRESS(ar, hi_option_flag),
(A_UCHAR *)&param,
4) != A_OK)
{
AR_DEBUG_PRINTF("BMIWriteMemory for enabletimerwar failed \n");
return;
}
AR_DEBUG_PRINTF("Timer WAR enabled\n");
}
/* since BMIInit is called in the driver layer, we have to set the block
* size here for the target */
if (A_FAILED(ar6000_SetHTCBlockSize(ar))) {
return;
}
spin_lock_init(&ar->arLock);
/* Don't install the init function if BMI is requested */
if(!bmienable)
{
dev->init = ar6000_init;
} else {
AR_DEBUG_PRINTF(" BMI enabled \n");
}
dev->open = &ar6000_open;
dev->stop = &ar6000_close;
dev->hard_start_xmit = &ar6000_data_tx;
dev->get_stats = &ar6000_get_stats;
/* dev->tx_timeout = ar6000_tx_timeout; */
dev->do_ioctl = &ar6000_ioctl;
dev->watchdog_timeo = AR6000_TX_TIMEOUT;
ar6000_ioctl_iwsetup(&ath_iw_handler_def);
dev->wireless_handlers = &ath_iw_handler_def;
ath_iw_handler_def.get_wireless_stats = ar6000_get_iwstats; /*Displayed via proc fs */
/*
* We need the OS to provide us with more headroom in order to
* perform dix to 802.3, WMI header encap, and the HTC header
*/
dev->hard_header_len = ETH_HLEN + sizeof(ATH_LLC_SNAP_HDR) +
sizeof(WMI_DATA_HDR) + HTC_HEADER_LEN;
/* This runs the init function */
SET_NETDEV_DEV(dev, HIFGetOSDevice(ar->arHifDevice));
if (register_netdev(dev)) {
AR_DEBUG_PRINTF("ar6000_avail: register_netdev failed\n");
ar6000_destroy(dev, 0);
return;
}
HTCSetInstance(ar->arHtcTarget, ar);
/* We only register the device in the global list if we succeed. */
/* If the device is in the global list, it will be destroyed */
/* when the module is unloaded. */
ar6000_devices[device_index] = dev;
AR_DEBUG_PRINTF("ar6000_avail: name=%s htcTarget=0x%x, dev=0x%x (%d), ar=0x%x\n",
dev->name, (A_UINT32)HTCHandle, (A_UINT32)dev, device_index,
(A_UINT32)ar);
}
static void ar6000_target_failure(void *Instance, A_STATUS Status)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)Instance;
WMI_TARGET_ERROR_REPORT_EVENT errEvent;
static A_BOOL sip = FALSE;
if (Status != A_OK) {
if (timer_pending(&ar->arHBChallengeResp.timer)) {
A_UNTIMEOUT(&ar->arHBChallengeResp.timer);
}
/* try dumping target assertion information (if any) */
ar6000_dump_target_assert_info(ar->arHifDevice,ar->arTargetType);
/*
* Fetch the logs from the target via the diagnostic
* window.
*/
ar6000_dbglog_get_debug_logs(ar);
/* Report the error only once */
if (!sip) {
sip = TRUE;
errEvent.errorVal = WMI_TARGET_COM_ERR |
WMI_TARGET_FATAL_ERR;
#ifdef SEND_EVENT_TO_APP
ar6000_send_event_to_app(ar, WMI_ERROR_REPORT_EVENTID,
(A_UINT8 *)&errEvent,
sizeof(WMI_TARGET_ERROR_REPORT_EVENT));
#endif
}
}
}
static void
ar6000_unavail_ev(void *Instance)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)Instance;
/* NULL out it's entry in the global list */
ar6000_devices[ar->arDeviceIndex] = NULL;
ar6000_destroy(ar->arNetDev, 1);
}
/*
* We need to differentiate between the surprise and planned removal of the
* device because of the following consideration:
* - In case of surprise removal, the hcd already frees up the pending
* for the device and hence there is no need to unregister the function
* driver inorder to get these requests. For planned removal, the function
* driver has to explictly unregister itself to have the hcd return all the
* pending requests before the data structures for the devices are freed up.
* Note that as per the current implementation, the function driver will
* end up releasing all the devices since there is no API to selectively
* release a particular device.
* - Certain commands issued to the target can be skipped for surprise
* removal since they will anyway not go through.
*/
static void
ar6000_destroy(struct net_device *dev, unsigned int unregister)
{
AR_SOFTC_T *ar;
AR_DEBUG_PRINTF("+ar6000_destroy \n");
if((dev == NULL) || ((ar = netdev_priv(dev)) == NULL))
{
AR_DEBUG_PRINTF("%s(): Failed to get device structure.\n", __func__);
return;
}
/* Clear the tx counters */
memset(tx_attempt, 0, sizeof(tx_attempt));
memset(tx_post, 0, sizeof(tx_post));
memset(tx_complete, 0, sizeof(tx_complete));
/* Free up the device data structure */
if (unregister) {
unregister_netdev(dev);
} else {
ar6000_close(dev);
}
free_raw_buffers(ar);
#ifndef free_netdev
kfree(dev);
#else
free_netdev(dev);
#endif
AR_DEBUG_PRINTF("-ar6000_destroy \n");
}
static void ar6000_detect_error(unsigned long ptr)
{
struct net_device *dev = (struct net_device *)ptr;
AR_SOFTC_T *ar = (AR_SOFTC_T *)netdev_priv(dev);
WMI_TARGET_ERROR_REPORT_EVENT errEvent;
AR6000_SPIN_LOCK(&ar->arLock, 0);
if (ar->arHBChallengeResp.outstanding) {
ar->arHBChallengeResp.missCnt++;
} else {
ar->arHBChallengeResp.missCnt = 0;
}
if (ar->arHBChallengeResp.missCnt > ar->arHBChallengeResp.missThres) {
/* Send Error Detect event to the application layer and do not reschedule the error detection module timer */
ar->arHBChallengeResp.missCnt = 0;
ar->arHBChallengeResp.seqNum = 0;
errEvent.errorVal = WMI_TARGET_COM_ERR | WMI_TARGET_FATAL_ERR;
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
#ifdef SEND_EVENT_TO_APP
ar6000_send_event_to_app(ar, WMI_ERROR_REPORT_EVENTID,
(A_UINT8 *)&errEvent,
sizeof(WMI_TARGET_ERROR_REPORT_EVENT));
#endif
return;
}
/* Generate the sequence number for the next challenge */
ar->arHBChallengeResp.seqNum++;
ar->arHBChallengeResp.outstanding = TRUE;
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
/* Send the challenge on the control channel */
if (wmi_get_challenge_resp_cmd(ar->arWmi, ar->arHBChallengeResp.seqNum, DRV_HB_CHALLENGE) != A_OK) {
AR_DEBUG_PRINTF("Unable to send heart beat challenge\n");
}
/* Reschedule the timer for the next challenge */
A_TIMEOUT_MS(&ar->arHBChallengeResp.timer, ar->arHBChallengeResp.frequency * 1000, 0);
}
void ar6000_init_profile_info(AR_SOFTC_T *ar)
{
ar->arSsidLen = 0;
A_MEMZERO(ar->arSsid, sizeof(ar->arSsid));
ar->arNetworkType = INFRA_NETWORK;
ar->arDot11AuthMode = OPEN_AUTH;
ar->arAuthMode = NONE_AUTH;
ar->arPairwiseCrypto = NONE_CRYPT;
ar->arPairwiseCryptoLen = 0;
ar->arGroupCrypto = NONE_CRYPT;
ar->arGroupCryptoLen = 0;
A_MEMZERO(ar->arWepKeyList, sizeof(ar->arWepKeyList));
A_MEMZERO(ar->arReqBssid, sizeof(ar->arReqBssid));
A_MEMZERO(ar->arBssid, sizeof(ar->arBssid));
ar->arBssChannel = 0;
}
static void
ar6000_init_control_info(AR_SOFTC_T *ar)
{
ar->arWmiEnabled = FALSE;
ar6000_init_profile_info(ar);
ar->arDefTxKeyIndex = 0;
A_MEMZERO(ar->arWepKeyList, sizeof(ar->arWepKeyList));
ar->arChannelHint = 0;
ar->arListenInterval = MAX_LISTEN_INTERVAL;
ar->arVersion.host_ver = AR6K_SW_VERSION;
ar->arRssi = 0;
ar->arTxPwr = 0;
ar->arTxPwrSet = FALSE;
ar->arSkipScan = 0;
ar->arBeaconInterval = 0;
ar->arBitRate = 0;
ar->arMaxRetries = 0;
ar->arWmmEnabled = TRUE;
}
static int
ar6000_open(struct net_device *dev)
{
/* Wake up the queues */
netif_start_queue(dev);
return 0;
}
static int
ar6000_close(struct net_device *dev)
{
AR_SOFTC_T *ar = netdev_priv(dev);
/* Stop the transmit queues */
netif_stop_queue(dev);
/* Disable the target and the interrupts associated with it */
if (ar->arWmiReady == TRUE)
{
if (!bypasswmi)
{
if (ar->arConnected == TRUE || ar->arConnectPending == TRUE)
{
AR_DEBUG_PRINTF("%s(): Disconnect\n", __func__);
AR6000_SPIN_LOCK(&ar->arLock, 0);
ar6000_init_profile_info(ar);
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
wmi_disconnect_cmd(ar->arWmi);
}
ar6000_dbglog_get_debug_logs(ar);
ar->arWmiReady = FALSE;
ar->arConnected = FALSE;
ar->arConnectPending = FALSE;
wmi_shutdown(ar->arWmi);
ar->arWmiEnabled = FALSE;
ar->arWmi = NULL;
ar->arWlanState = WLAN_ENABLED;
#ifdef USER_KEYS
ar->user_savedkeys_stat = USER_SAVEDKEYS_STAT_INIT;
ar->user_key_ctrl = 0;
#endif
}
AR_DEBUG_PRINTF("%s(): WMI stopped\n", __func__);
}
else
{
AR_DEBUG_PRINTF("%s(): WMI not ready 0x%08x 0x%08x\n",
__func__, (unsigned int) ar, (unsigned int) ar->arWmi);
/* Shut down WMI if we have started it */
if(ar->arWmiEnabled == TRUE)
{
AR_DEBUG_PRINTF("%s(): Shut down WMI\n", __func__);
wmi_shutdown(ar->arWmi);
ar->arWmiEnabled = FALSE;
ar->arWmi = NULL;
}
}
/* stop HTC */
HTCStop(ar->arHtcTarget);
/* set the instance to NULL so we do not get called back on remove incase we
* we're explicity destroyed by module unload */
HTCSetInstance(ar->arHtcTarget, NULL);
if (resetok) {
/* try to reset the device if we can
* The driver may have been configure NOT to reset the target during
* a debug session */
AR_DEBUG_PRINTF(" Attempting to reset target on instance destroy.... \n");
ar6000_reset_device(ar->arHifDevice, ar->arTargetType);
} else {
AR_DEBUG_PRINTF(" Host does not want target reset. \n");
}
/* Done with cookies */
ar6000_cookie_cleanup(ar);
/* Cleanup BMI */
BMIInit();
return 0;
}
/* connect to a service */
static A_STATUS ar6000_connectservice(AR_SOFTC_T *ar,
HTC_SERVICE_CONNECT_REQ *pConnect,
WMI_PRI_STREAM_ID WmiStreamID,
char *pDesc)
{
A_STATUS status;
HTC_SERVICE_CONNECT_RESP response;
do {
A_MEMZERO(&response,sizeof(response));
status = HTCConnectService(ar->arHtcTarget,
pConnect,
&response);
if (A_FAILED(status)) {
AR_DEBUG_PRINTF(" Failed to connect to %s service status:%d \n", pDesc, status);
break;
}
if (WmiStreamID == WMI_NOT_MAPPED) {
/* done */
break;
}
/* set endpoint mapping for the WMI stream in the driver layer */
arSetWMIStream2EndpointIDMap(ar,WmiStreamID,response.Endpoint);
} while (FALSE);
return status;
}
static void ar6000_TxDataCleanup(AR_SOFTC_T *ar)
{
/* flush all the data (non-control) streams
* we only flush packets that are tagged as data, we leave any control packets that
* were in the TX queues alone */
HTCFlushEndpoint(ar->arHtcTarget,
arWMIStream2EndpointID(ar,WMI_BEST_EFFORT_PRI),
AR6K_DATA_PKT_TAG);
HTCFlushEndpoint(ar->arHtcTarget,
arWMIStream2EndpointID(ar,WMI_LOW_PRI),
AR6K_DATA_PKT_TAG);
HTCFlushEndpoint(ar->arHtcTarget,
arWMIStream2EndpointID(ar,WMI_HIGH_PRI),
AR6K_DATA_PKT_TAG);
HTCFlushEndpoint(ar->arHtcTarget,
arWMIStream2EndpointID(ar,WMI_HIGHEST_PRI),
AR6K_DATA_PKT_TAG);
}
/* This function does one time initialization for the lifetime of the device */
int ar6000_init(struct net_device *dev)
{
AR_SOFTC_T *ar;
A_STATUS status;
A_INT32 timeleft;
if((ar = netdev_priv(dev)) == NULL)
{
return(-EIO);
}
/* Do we need to finish the BMI phase */
if(BMIDone(ar->arHifDevice) != A_OK)
{
return -EIO;
}
if (!bypasswmi)
{
#if 0 /* TBDXXX */
if (ar->arVersion.host_ver != ar->arVersion.target_ver) {
A_PRINTF("WARNING: Host version 0x%x does not match Target "
" version 0x%x!\n",
ar->arVersion.host_ver, ar->arVersion.target_ver);
}
#endif
/* Indicate that WMI is enabled (although not ready yet) */
ar->arWmiEnabled = TRUE;
if ((ar->arWmi = wmi_init((void *) ar)) == NULL)
{
AR_DEBUG_PRINTF("%s() Failed to initialize WMI.\n", __func__);
return(-EIO);
}
AR_DEBUG_PRINTF("%s() Got WMI @ 0x%08x.\n", __func__,
(unsigned int) ar->arWmi);
}
do {
HTC_SERVICE_CONNECT_REQ connect;
/* the reason we have to wait for the target here is that the driver layer
* has to init BMI in order to set the host block size,
*/
status = HTCWaitTarget(ar->arHtcTarget);
if (A_FAILED(status)) {
break;
}
A_MEMZERO(&connect,sizeof(connect));
/* meta data is unused for now */
connect.pMetaData = NULL;
connect.MetaDataLength = 0;
/* these fields are the same for all service endpoints */
connect.EpCallbacks.pContext = ar;
connect.EpCallbacks.EpTxComplete = ar6000_tx_complete;
connect.EpCallbacks.EpRecv = ar6000_rx;
connect.EpCallbacks.EpRecvRefill = ar6000_rx_refill;
connect.EpCallbacks.EpSendFull = ar6000_tx_queue_full;
connect.EpCallbacks.EpSendAvail = ar6000_tx_queue_avail;
/* set the max queue depth so that our ar6000_tx_queue_full handler gets called.
* Linux has the peculiarity of not providing flow control between the
* NIC and the network stack. There is no API to indicate that a TX packet
* was sent which could provide some back pressure to the network stack.
* Under linux you would have to wait till the network stack consumed all sk_buffs
* before any back-flow kicked in. Which isn't very friendly.
* So we have to manage this ourselves */
connect.MaxSendQueueDepth = 32;
/* connect to control service */
connect.ServiceID = WMI_CONTROL_SVC;
status = ar6000_connectservice(ar,
&connect,
WMI_CONTROL_PRI,
"WMI CONTROL");
if (A_FAILED(status)) {
break;
}
/* for the remaining data services set the connection flag to reduce dribbling,
* if configured to do so */
if (reduce_credit_dribble) {
connect.ConnectionFlags |= HTC_CONNECT_FLAGS_REDUCE_CREDIT_DRIBBLE;
/* the credit dribble trigger threshold is (reduce_credit_dribble - 1) for a value
* of 0-3 */
connect.ConnectionFlags &= ~HTC_CONNECT_FLAGS_THRESHOLD_LEVEL_MASK;
connect.ConnectionFlags |=
((A_UINT16)reduce_credit_dribble - 1) & HTC_CONNECT_FLAGS_THRESHOLD_LEVEL_MASK;
}
/* connect to best-effort service */
connect.ServiceID = WMI_DATA_BE_SVC;
status = ar6000_connectservice(ar,
&connect,
WMI_BEST_EFFORT_PRI,
"WMI DATA BE");
if (A_FAILED(status)) {
break;
}
/* connect to back-ground
* map this to WMI LOW_PRI */
connect.ServiceID = WMI_DATA_BK_SVC;
status = ar6000_connectservice(ar,
&connect,
WMI_LOW_PRI,
"WMI DATA BK");
if (A_FAILED(status)) {
break;
}
/* connect to Video service, map this to
* to HI PRI */
connect.ServiceID = WMI_DATA_VI_SVC;
status = ar6000_connectservice(ar,
&connect,
WMI_HIGH_PRI,
"WMI DATA VI");
if (A_FAILED(status)) {
break;
}
/* connect to VO service, this is currently not
* mapped to a WMI priority stream due to historical reasons.
* WMI originally defined 3 priorities over 3 mailboxes
* We can change this when WMI is reworked so that priorities are not
* dependent on mailboxes */
connect.ServiceID = WMI_DATA_VO_SVC;
status = ar6000_connectservice(ar,
&connect,
WMI_HIGHEST_PRI,
"WMI DATA VO");
if (A_FAILED(status)) {
break;
}
A_ASSERT(arWMIStream2EndpointID(ar,WMI_CONTROL_PRI) != 0);
A_ASSERT(arWMIStream2EndpointID(ar,WMI_BEST_EFFORT_PRI) != 0);
A_ASSERT(arWMIStream2EndpointID(ar,WMI_LOW_PRI) != 0);
A_ASSERT(arWMIStream2EndpointID(ar,WMI_HIGH_PRI) != 0);
A_ASSERT(arWMIStream2EndpointID(ar,WMI_HIGHEST_PRI) != 0);
} while (FALSE);
if (A_FAILED(status)) {
return (-EIO);
}
/*
* give our connected endpoints some buffers
*/
ar6000_rx_refill(ar, arWMIStream2EndpointID(ar,WMI_CONTROL_PRI));
ar6000_rx_refill(ar, arWMIStream2EndpointID(ar,WMI_BEST_EFFORT_PRI));
/*
* We will post the receive buffers only for SPE testing and so we are
* making it conditional on the 'bypasswmi' flag.
*/
if (bypasswmi) {
ar6000_rx_refill(ar,arWMIStream2EndpointID(ar,WMI_LOW_PRI));
ar6000_rx_refill(ar,arWMIStream2EndpointID(ar,WMI_HIGH_PRI));
}
/* setup credit distribution */
ar6000_setup_credit_dist(ar->arHtcTarget, &ar->arCreditStateInfo);
/* Since cookies are used for HTC transports, they should be */
/* initialized prior to enabling HTC. */
ar6000_cookie_init(ar);
/* start HTC */
status = HTCStart(ar->arHtcTarget);
if (status != A_OK) {
if (ar->arWmiEnabled == TRUE) {
wmi_shutdown(ar->arWmi);
ar->arWmiEnabled = FALSE;
ar->arWmi = NULL;
}
ar6000_cookie_cleanup(ar);
return -EIO;
}
if (!bypasswmi) {
/* Wait for Wmi event to be ready */
timeleft = wait_event_interruptible_timeout(arEvent,
(ar->arWmiReady == TRUE), wmitimeout * HZ);
if(!timeleft || signal_pending(current))
{
AR_DEBUG_PRINTF("WMI is not ready or wait was interrupted\n");
#if defined(DWSIM) /* TBDXXX */
AR_DEBUG_PRINTF(".....but proceed anyway.\n");
#else
return -EIO;
#endif
}
AR_DEBUG_PRINTF("%s() WMI is ready\n", __func__);
/* Communicate the wmi protocol verision to the target */
if ((ar6000_set_host_app_area(ar)) != A_OK) {
AR_DEBUG_PRINTF("Unable to set the host app area\n");
}
}
ar->arNumDataEndPts = 1;
return(0);
}
void
ar6000_bitrate_rx(void *devt, A_INT32 rateKbps)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)devt;
ar->arBitRate = rateKbps;
wake_up(&arEvent);
}
void
ar6000_ratemask_rx(void *devt, A_UINT16 ratemask)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)devt;
ar->arRateMask = ratemask;
wake_up(&arEvent);
}
void
ar6000_txPwr_rx(void *devt, A_UINT8 txPwr)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)devt;
ar->arTxPwr = txPwr;
wake_up(&arEvent);
}
void
ar6000_channelList_rx(void *devt, A_INT8 numChan, A_UINT16 *chanList)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)devt;
A_MEMCPY(ar->arChannelList, chanList, numChan * sizeof (A_UINT16));
ar->arNumChannels = numChan;
wake_up(&arEvent);
}
A_UINT8
ar6000_ibss_map_epid(struct sk_buff *skb, struct net_device *dev, A_UINT32 * mapNo)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)netdev_priv(dev);
A_UINT8 *datap;
ATH_MAC_HDR *macHdr;
A_UINT32 i, eptMap;
(*mapNo) = 0;
datap = A_NETBUF_DATA(skb);
macHdr = (ATH_MAC_HDR *)(datap + sizeof(WMI_DATA_HDR));
if (IEEE80211_IS_MULTICAST(macHdr->dstMac)) {
return ENDPOINT_2;
}
eptMap = -1;
for (i = 0; i < ar->arNodeNum; i ++) {
if (IEEE80211_ADDR_EQ(macHdr->dstMac, ar->arNodeMap[i].macAddress)) {
(*mapNo) = i + 1;
ar->arNodeMap[i].txPending ++;
return ar->arNodeMap[i].epId;
}
if ((eptMap == -1) && !ar->arNodeMap[i].txPending) {
eptMap = i;
}
}
if (eptMap == -1) {
eptMap = ar->arNodeNum;
ar->arNodeNum ++;
A_ASSERT(ar->arNodeNum <= MAX_NODE_NUM);
}
A_MEMCPY(ar->arNodeMap[eptMap].macAddress, macHdr->dstMac, IEEE80211_ADDR_LEN);
for (i = ENDPOINT_2; i <= ENDPOINT_5; i ++) {
if (!ar->arTxPending[i]) {
ar->arNodeMap[eptMap].epId = i;
break;
}
// No free endpoint is available, start redistribution on the inuse endpoints.
if (i == ENDPOINT_5) {
ar->arNodeMap[eptMap].epId = ar->arNexEpId;
ar->arNexEpId ++;
if (ar->arNexEpId > ENDPOINT_5) {
ar->arNexEpId = ENDPOINT_2;
}
}
}
(*mapNo) = eptMap + 1;
ar->arNodeMap[eptMap].txPending ++;
return ar->arNodeMap[eptMap].epId;
}
#ifdef DEBUG
static void ar6000_dump_skb(struct sk_buff *skb)
{
u_char *ch;
for (ch = A_NETBUF_DATA(skb);
(A_UINT32)ch < ((A_UINT32)A_NETBUF_DATA(skb) +
A_NETBUF_LEN(skb)); ch++)
{
AR_DEBUG_PRINTF("%2.2x ", *ch);
}
AR_DEBUG_PRINTF("\n");
}
#endif
static int
ar6000_data_tx(struct sk_buff *skb, struct net_device *dev)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)netdev_priv(dev);
WMI_PRI_STREAM_ID streamID = WMI_NOT_MAPPED;
A_UINT32 mapNo = 0;
int len;
struct ar_cookie *cookie;
A_BOOL checkAdHocPsMapping = FALSE;
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,13)
skb->list = NULL;
#endif
AR_DEBUG2_PRINTF("ar6000_data_tx start - skb=0x%x, data=0x%x, len=0x%x\n",
(A_UINT32)skb, (A_UINT32)A_NETBUF_DATA(skb),
A_NETBUF_LEN(skb));
#ifdef CONFIG_HOST_TCMD_SUPPORT
/* TCMD doesnt support any data, free the buf and return */
if(ar->arTargetMode == AR6000_TCMD_MODE) {
A_NETBUF_FREE(skb);
return 0;
}
#endif
do {
if (ar->arWmiReady == FALSE && bypasswmi == 0) {
break;
}
#ifdef BLOCK_TX_PATH_FLAG
if (blocktx) {
break;
}
#endif /* BLOCK_TX_PATH_FLAG */
if (ar->arWmiEnabled) {
if (A_NETBUF_HEADROOM(skb) < dev->hard_header_len) {
struct sk_buff *newbuf;
/*
* We really should have gotten enough headroom but sometimes
* we still get packets with not enough headroom. Copy the packet.
*/
len = A_NETBUF_LEN(skb);
newbuf = A_NETBUF_ALLOC(len);
if (newbuf == NULL) {
break;
}
A_NETBUF_PUT(newbuf, len);
A_MEMCPY(A_NETBUF_DATA(newbuf), A_NETBUF_DATA(skb), len);
A_NETBUF_FREE(skb);
skb = newbuf;
/* fall through and assemble header */
}
if (wmi_dix_2_dot3(ar->arWmi, skb) != A_OK) {
AR_DEBUG_PRINTF("ar6000_data_tx - wmi_dix_2_dot3 failed\n");
break;
}
if (wmi_data_hdr_add(ar->arWmi, skb, DATA_MSGTYPE) != A_OK) {
AR_DEBUG_PRINTF("ar6000_data_tx - wmi_data_hdr_add failed\n");
break;
}
if ((ar->arNetworkType == ADHOC_NETWORK) &&
ar->arIbssPsEnable && ar->arConnected) {
/* flag to check adhoc mapping once we take the lock below: */
checkAdHocPsMapping = TRUE;
} else {
/* get the stream mapping */
if (ar->arWmmEnabled) {
streamID = wmi_get_stream_id(ar->arWmi,
wmi_implicit_create_pstream(ar->arWmi, skb, UPLINK_TRAFFIC, UNDEFINED_PRI));
} else {
streamID = WMI_BEST_EFFORT_PRI;
}
}
} else {
struct iphdr *ipHdr;
/*
* the endpoint is directly based on the TOS field in the IP
* header **** only for testing ******
*/
ipHdr = A_NETBUF_DATA(skb) + sizeof(ATH_MAC_HDR);
/* here we map the TOS field to an endpoint number, this is for
* the endpointping test application */
streamID = IP_TOS_TO_WMI_PRI(ipHdr->tos);
}
} while (FALSE);
/* did we succeed ? */
if ((streamID == WMI_NOT_MAPPED) && !checkAdHocPsMapping) {
/* cleanup and exit */
A_NETBUF_FREE(skb);
AR6000_STAT_INC(ar, tx_dropped);
AR6000_STAT_INC(ar, tx_aborted_errors);
return 0;
}
cookie = NULL;
/* take the lock to protect driver data */
AR6000_SPIN_LOCK(&ar->arLock, 0);
do {
if (checkAdHocPsMapping) {
streamID = ar6000_ibss_map_epid(skb, dev, &mapNo);
}
A_ASSERT(streamID != WMI_NOT_MAPPED);
/* validate that the endpoint is connected */
if (arWMIStream2EndpointID(ar,streamID) == 0) {
AR_DEBUG_PRINTF("Stream %d is NOT mapped!\n",streamID);
break;
}
/* allocate resource for this packet */
cookie = ar6000_alloc_cookie(ar);
if (cookie != NULL) {
/* update counts while the lock is held */
ar->arTxPending[streamID]++;
ar->arTotalTxDataPending++;
}
} while (FALSE);
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
if (cookie != NULL) {
cookie->arc_bp[0] = (A_UINT32)skb;
cookie->arc_bp[1] = mapNo;
SET_HTC_PACKET_INFO_TX(&cookie->HtcPkt,
cookie,
A_NETBUF_DATA(skb),
A_NETBUF_LEN(skb),
arWMIStream2EndpointID(ar,streamID),
AR6K_DATA_PKT_TAG);
#ifdef DEBUG
if (debugdriver >= 3) {
ar6000_dump_skb(skb);
}
#endif
/* HTC interface is asynchronous, if this fails, cleanup will happen in
* the ar6000_tx_complete callback */
HTCSendPkt(ar->arHtcTarget, &cookie->HtcPkt);
} else {
/* no packet to send, cleanup */
A_NETBUF_FREE(skb);
AR6000_STAT_INC(ar, tx_dropped);
AR6000_STAT_INC(ar, tx_aborted_errors);
}
return 0;
}
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
static void
tvsub(register struct timeval *out, register struct timeval *in)
{
if((out->tv_usec -= in->tv_usec) < 0) {
out->tv_sec--;
out->tv_usec += 1000000;
}
out->tv_sec -= in->tv_sec;
}
void
applyAPTCHeuristics(AR_SOFTC_T *ar)
{
A_UINT32 duration;
A_UINT32 numbytes;
A_UINT32 throughput;
struct timeval ts;
A_STATUS status;
AR6000_SPIN_LOCK(&ar->arLock, 0);
if ((enableAPTCHeuristics) && (!aptcTR.timerScheduled)) {
do_gettimeofday(&ts);
tvsub(&ts, &aptcTR.samplingTS);
duration = ts.tv_sec * 1000 + ts.tv_usec / 1000; /* ms */
numbytes = aptcTR.bytesTransmitted + aptcTR.bytesReceived;
if (duration > APTC_TRAFFIC_SAMPLING_INTERVAL) {
/* Initialize the time stamp and byte count */
aptcTR.bytesTransmitted = aptcTR.bytesReceived = 0;
do_gettimeofday(&aptcTR.samplingTS);
/* Calculate and decide based on throughput thresholds */
throughput = ((numbytes * 8) / duration);
if (throughput > APTC_UPPER_THROUGHPUT_THRESHOLD) {
/* Disable Sleep and schedule a timer */
A_ASSERT(ar->arWmiReady == TRUE);
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
status = wmi_powermode_cmd(ar->arWmi, MAX_PERF_POWER);
AR6000_SPIN_LOCK(&ar->arLock, 0);
A_TIMEOUT_MS(&aptcTimer, APTC_TRAFFIC_SAMPLING_INTERVAL, 0);
aptcTR.timerScheduled = TRUE;
}
}
}
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
}
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
static void
ar6000_tx_queue_full(void *Context, HTC_ENDPOINT_ID Endpoint)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *) Context;
if (Endpoint == arWMIStream2EndpointID(ar,WMI_CONTROL_PRI)) {
if (!bypasswmi) {
/* under normal WMI if this is getting full, then something is running rampant
* the host should not be exhausting the WMI queue with too many commands
* the only exception to this is during testing using endpointping */
AR6000_SPIN_LOCK(&ar->arLock, 0);
/* set flag to handle subsequent messages */
ar->arWMIControlEpFull = TRUE;
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
AR_DEBUG_PRINTF("WMI Control Endpoint is FULL!!! \n");
}
} else {
/* one of the data endpoints queues is getting full..need to stop network stack
* the queue will resume after credits received */
netif_stop_queue(ar->arNetDev);
}
}
static void
ar6000_tx_queue_avail(void *Context, HTC_ENDPOINT_ID Endpoint)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)Context;
if (Endpoint == arWMIStream2EndpointID(ar,WMI_CONTROL_PRI)) {
/* FIXME: what do for it? */
} else {
/* Wake up interface, rescheduling prevented. */
if (ar->arConnected == TRUE || bypasswmi)
netif_wake_queue(ar->arNetDev);
}
}
static void
ar6000_tx_complete(void *Context, HTC_PACKET *pPacket)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)Context;
void *cookie = (void *)pPacket->pPktContext;
struct sk_buff *skb = NULL;
A_UINT32 mapNo = 0;
A_STATUS status;
struct ar_cookie * ar_cookie;
WMI_PRI_STREAM_ID streamID;
A_BOOL wakeEvent = FALSE;
status = pPacket->Status;
ar_cookie = (struct ar_cookie *)cookie;
skb = (struct sk_buff *)ar_cookie->arc_bp[0];
streamID = arEndpoint2WMIStreamID(ar,pPacket->Endpoint);
mapNo = ar_cookie->arc_bp[1];
A_ASSERT(skb);
A_ASSERT(pPacket->pBuffer == A_NETBUF_DATA(skb));
if (A_SUCCESS(status)) {
A_ASSERT(pPacket->ActualLength == A_NETBUF_LEN(skb));
}
AR_DEBUG2_PRINTF("ar6000_tx_complete skb=0x%x data=0x%x len=0x%x sid=%d ",
(A_UINT32)skb, (A_UINT32)pPacket->pBuffer,
pPacket->ActualLength,
streamID);
/* lock the driver as we update internal state */
AR6000_SPIN_LOCK(&ar->arLock, 0);
ar->arTxPending[streamID]--;
if ((streamID != WMI_CONTROL_PRI) || bypasswmi) {
ar->arTotalTxDataPending--;
}
if (streamID == WMI_CONTROL_PRI)
{
if (ar->arWMIControlEpFull) {
/* since this packet completed, the WMI EP is no longer full */
ar->arWMIControlEpFull = FALSE;
}
if (ar->arTxPending[streamID] == 0) {
wakeEvent = TRUE;
}
}
if (A_FAILED(status)) {
AR_DEBUG_PRINTF("%s() -TX ERROR, status: 0x%x\n", __func__,
status);
AR6000_STAT_INC(ar, tx_errors);
} else {
AR_DEBUG2_PRINTF("OK\n");
AR6000_STAT_INC(ar, tx_packets);
ar->arNetStats.tx_bytes += A_NETBUF_LEN(skb);
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
aptcTR.bytesTransmitted += a_netbuf_to_len(skb);
applyAPTCHeuristics(ar);
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
}
// TODO this needs to be looked at
if ((ar->arNetworkType == ADHOC_NETWORK) && ar->arIbssPsEnable
&& (streamID != WMI_CONTROL_PRI) && mapNo)
{
mapNo --;
ar->arNodeMap[mapNo].txPending --;
if (!ar->arNodeMap[mapNo].txPending && (mapNo == (ar->arNodeNum - 1))) {
A_UINT32 i;
for (i = ar->arNodeNum; i > 0; i --) {
if (!ar->arNodeMap[i - 1].txPending) {
A_MEMZERO(&ar->arNodeMap[i - 1], sizeof(struct ar_node_mapping));
ar->arNodeNum --;
} else {
break;
}
}
}
}
/* Freeing a cookie should not be contingent on either of */
/* these flags, just if we have a cookie or not. */
/* Can we even get here without a cookie? Fix later. */
if (ar->arWmiReady == TRUE || (bypasswmi))
{
ar6000_free_cookie(ar, cookie);
}
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
/* lock is released, we can freely call other kernel APIs */
/* this indirectly frees the HTC_PACKET */
A_NETBUF_FREE(skb);
if (wakeEvent) {
wake_up(&arEvent);
}
}
/*
* Receive event handler. This is called by HTC when a packet is received
*/
int pktcount;
static void
ar6000_rx(void *Context, HTC_PACKET *pPacket)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)Context;
struct sk_buff *skb = (struct sk_buff *)pPacket->pPktContext;
int minHdrLen;
A_STATUS status = pPacket->Status;
WMI_PRI_STREAM_ID streamID = arEndpoint2WMIStreamID(ar,pPacket->Endpoint);
HTC_ENDPOINT_ID ept = pPacket->Endpoint;
A_ASSERT((status != A_OK) || (pPacket->pBuffer == (A_NETBUF_DATA(skb) + HTC_HEADER_LEN)));
AR_DEBUG2_PRINTF("ar6000_rx ar=0x%x sid=%d, skb=0x%x, data=0x%x, len=0x%x ",
(A_UINT32)ar, streamID, (A_UINT32)skb, (A_UINT32)pPacket->pBuffer,
pPacket->ActualLength);
if (status != A_OK) {
AR_DEBUG2_PRINTF("ERR\n");
} else {
AR_DEBUG2_PRINTF("OK\n");
}
/* take lock to protect buffer counts
* and adaptive power throughput state */
AR6000_SPIN_LOCK(&ar->arLock, 0);
ar->arRxBuffers[streamID]--;
if (A_SUCCESS(status)) {
AR6000_STAT_INC(ar, rx_packets);
ar->arNetStats.rx_bytes += pPacket->ActualLength;
#ifdef ADAPTIVE_POWER_THROUGHPUT_CONTROL
aptcTR.bytesReceived += a_netbuf_to_len(skb);
applyAPTCHeuristics(ar);
#endif /* ADAPTIVE_POWER_THROUGHPUT_CONTROL */
A_NETBUF_PUT(skb, pPacket->ActualLength + HTC_HEADER_LEN);
A_NETBUF_PULL(skb, HTC_HEADER_LEN);
#ifdef DEBUG
if (debugdriver >= 2) {
ar6000_dump_skb(skb);
}
#endif /* DEBUG */
}
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
if (status != A_OK) {
AR6000_STAT_INC(ar, rx_errors);
A_NETBUF_FREE(skb);
} else if (ar->arWmiEnabled == TRUE) {
if (streamID == WMI_CONTROL_PRI) {
/*
* this is a wmi control msg
*/
wmi_control_rx(ar->arWmi, skb);
} else {
WMI_DATA_HDR *dhdr = (WMI_DATA_HDR *)A_NETBUF_DATA(skb);
if (WMI_DATA_HDR_IS_MSG_TYPE(dhdr, CNTL_MSGTYPE)) {
/*
* this is a wmi control msg
*/
/* strip off WMI hdr */
wmi_data_hdr_remove(ar->arWmi, skb);
wmi_control_rx(ar->arWmi, skb);
} else {
/*
* this is a wmi data packet
*/
minHdrLen = sizeof (WMI_DATA_HDR) + sizeof(ATH_MAC_HDR) +
sizeof(ATH_LLC_SNAP_HDR);
if ((pPacket->ActualLength < minHdrLen) ||
(pPacket->ActualLength > AR6000_BUFFER_SIZE))
{
/*
* packet is too short or too long
*/
AR_DEBUG_PRINTF("TOO SHORT or TOO LONG\n");
AR6000_STAT_INC(ar, rx_errors);
AR6000_STAT_INC(ar, rx_length_errors);
A_NETBUF_FREE(skb);
} else {
if (ar->arWmmEnabled) {
wmi_implicit_create_pstream(ar->arWmi, skb,
DNLINK_TRAFFIC, UNDEFINED_PRI);
}
#if 0
/* Access RSSI values here */
AR_DEBUG_PRINTF("RSSI %d\n",
((WMI_DATA_HDR *) A_NETBUF_DATA(skb))->rssi);
#endif
wmi_data_hdr_remove(ar->arWmi, skb);
wmi_dot3_2_dix(ar->arWmi, skb);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
/*
* extra push and memcpy, for eth_type_trans() of 2.4 kernel
* will pull out hard_header_len bytes of the skb.
*/
A_NETBUF_PUSH(skb, sizeof(WMI_DATA_HDR) + sizeof(ATH_LLC_SNAP_HDR) + HTC_HEADER_LEN);
A_MEMCPY(A_NETBUF_DATA(skb), A_NETBUF_DATA(skb) + sizeof(WMI_DATA_HDR) +
sizeof(ATH_LLC_SNAP_HDR) + HTC_HEADER_LEN, sizeof(ATH_MAC_HDR));
#endif
if ((ar->arNetDev->flags & IFF_UP) == IFF_UP)
{
skb->dev = ar->arNetDev;
skb->protocol = eth_type_trans(skb, ar->arNetDev);
netif_rx(skb);
}
else
{
A_NETBUF_FREE(skb);
}
}
}
}
} else {
if ((ar->arNetDev->flags & IFF_UP) == IFF_UP)
{
skb->dev = ar->arNetDev;
skb->protocol = eth_type_trans(skb, ar->arNetDev);
netif_rx(skb);
}
else
{
A_NETBUF_FREE(skb);
}
}
if (status != A_ECANCELED) {
/*
* HTC provides A_ECANCELED status when it doesn't want to be refilled
* (probably due to a shutdown)
*/
ar6000_rx_refill(Context, ept);
}
}
static void
ar6000_rx_refill(void *Context, HTC_ENDPOINT_ID Endpoint)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)Context;
void *osBuf;
int RxBuffers;
int buffersToRefill;
HTC_PACKET *pPacket;
WMI_PRI_STREAM_ID streamId = arEndpoint2WMIStreamID(ar,Endpoint);
buffersToRefill = (int)AR6000_MAX_RX_BUFFERS -
(int)ar->arRxBuffers[streamId];
if (buffersToRefill <= 0) {
/* fast return, nothing to fill */
return;
}
AR_DEBUG2_PRINTF("ar6000_rx_refill: providing htc with %d buffers at eid=%d\n",
buffersToRefill, Endpoint);
for (RxBuffers = 0; RxBuffers < buffersToRefill; RxBuffers++) {
osBuf = A_NETBUF_ALLOC(AR6000_BUFFER_SIZE);
if (NULL == osBuf) {
break;
}
/* the HTC packet wrapper is at the head of the reserved area
* in the skb */
pPacket = (HTC_PACKET *)(A_NETBUF_HEAD(osBuf));
/* set re-fill info */
SET_HTC_PACKET_INFO_RX_REFILL(pPacket,osBuf,A_NETBUF_DATA(osBuf),AR6000_BUFFER_SIZE,Endpoint);
/* add this packet */
HTCAddReceivePkt(ar->arHtcTarget, pPacket);
}
/* update count */
AR6000_SPIN_LOCK(&ar->arLock, 0);
ar->arRxBuffers[streamId] += RxBuffers;
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
}
static struct net_device_stats *
ar6000_get_stats(struct net_device *dev)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)netdev_priv(dev);
return &ar->arNetStats;
}
static struct iw_statistics *
ar6000_get_iwstats(struct net_device * dev)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)netdev_priv(dev);
TARGET_STATS *pStats = &ar->arTargetStats;
struct iw_statistics * pIwStats = &ar->arIwStats;
if ((ar->arWmiReady == FALSE)
/*
* The in_atomic function is used to determine if the scheduling is
* allowed in the current context or not. This was introduced in 2.6
* From what I have read on the differences between 2.4 and 2.6, the
* 2.4 kernel did not support preemption and so this check might not
* be required for 2.4 kernels.
*/
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
|| (in_atomic())
#endif
)
{
pIwStats->status = 0;
pIwStats->qual.qual = 0;
pIwStats->qual.level =0;
pIwStats->qual.noise = 0;
pIwStats->discard.code =0;
pIwStats->discard.retries=0;
pIwStats->miss.beacon =0;
return pIwStats;
}
if (down_interruptible(&ar->arSem)) {
pIwStats->status = 0;
return pIwStats;
}
ar->statsUpdatePending = TRUE;
if(wmi_get_stats_cmd(ar->arWmi) != A_OK) {
up(&ar->arSem);
pIwStats->status = 0;
return pIwStats;
}
wait_event_interruptible_timeout(arEvent, ar->statsUpdatePending == FALSE, wmitimeout * HZ);
if (signal_pending(current)) {
AR_DEBUG_PRINTF("ar6000 : WMI get stats timeout \n");
up(&ar->arSem);
pIwStats->status = 0;
return pIwStats;
}
pIwStats->status = 1 ;
pIwStats->qual.qual = pStats->cs_aveBeacon_rssi;
pIwStats->qual.level =pStats->cs_aveBeacon_rssi + 161; /* noise is -95 dBm */
pIwStats->qual.noise = pStats->noise_floor_calibation;
pIwStats->discard.code = pStats->rx_decrypt_err;
pIwStats->discard.retries = pStats->tx_retry_cnt;
pIwStats->miss.beacon = pStats->cs_bmiss_cnt;
up(&ar->arSem);
return pIwStats;
}
void
ar6000_ready_event(void *devt, A_UINT8 *datap, A_UINT8 phyCap)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)devt;
struct net_device *dev = ar->arNetDev;
ar->arWmiReady = TRUE;
wake_up(&arEvent);
A_MEMCPY(dev->dev_addr, datap, AR6000_ETH_ADDR_LEN);
AR_DEBUG_PRINTF("mac address = %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
dev->dev_addr[0], dev->dev_addr[1],
dev->dev_addr[2], dev->dev_addr[3],
dev->dev_addr[4], dev->dev_addr[5]);
ar->arPhyCapability = phyCap;
}
A_UINT8
ar6000_iptos_to_userPriority(A_UINT8 *pkt)
{
struct iphdr *ipHdr = (struct iphdr *)pkt;
A_UINT8 userPriority;
/*
* IP Tos format :
* (Refer Pg 57 WMM-test-plan-v1.2)
* IP-TOS - 8bits
* : DSCP(6-bits) ECN(2-bits)
* : DSCP - P2 P1 P0 X X X
* where (P2 P1 P0) form 802.1D
*/
userPriority = ipHdr->tos >> 5;
return (userPriority & 0x7);
}
void
ar6000_connect_event(AR_SOFTC_T *ar, A_UINT16 channel, A_UINT8 *bssid,
A_UINT16 listenInterval, A_UINT16 beaconInterval,
NETWORK_TYPE networkType, A_UINT8 beaconIeLen,
A_UINT8 assocReqLen, A_UINT8 assocRespLen,
A_UINT8 *assocInfo)
{
union iwreq_data wrqu;
int i, beacon_ie_pos, assoc_resp_ie_pos, assoc_req_ie_pos;
static const char *tag1 = "ASSOCINFO(ReqIEs=";
static const char *tag2 = "ASSOCRESPIE=";
static const char *beaconIetag = "BEACONIE=";
char buf[WMI_CONTROL_MSG_MAX_LEN * 2 + sizeof(tag1)];
char *pos;
A_UINT8 key_op_ctrl;
A_MEMCPY(ar->arBssid, bssid, sizeof(ar->arBssid));
ar->arBssChannel = channel;
A_PRINTF("AR6000 connected event on freq %d ", channel);
A_PRINTF("with bssid %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
" listenInterval=%d, beaconInterval = %d, beaconIeLen = %d assocReqLen=%d"
" assocRespLen =%d\n",
bssid[0], bssid[1], bssid[2],
bssid[3], bssid[4], bssid[5],
listenInterval, beaconInterval,
beaconIeLen, assocReqLen, assocRespLen);
if (networkType & ADHOC_NETWORK) {
if (networkType & ADHOC_CREATOR) {
A_PRINTF("Network: Adhoc (Creator)\n");
} else {
A_PRINTF("Network: Adhoc (Joiner)\n");
}
} else {
A_PRINTF("Network: Infrastructure\n");
}
if (beaconIeLen && (sizeof(buf) > (9 + beaconIeLen * 2))) {
AR_DEBUG_PRINTF("\nBeaconIEs= ");
beacon_ie_pos = 0;
A_MEMZERO(buf, sizeof(buf));
sprintf(buf, "%s", beaconIetag);
pos = buf + 9;
for (i = beacon_ie_pos; i < beacon_ie_pos + beaconIeLen; i++) {
AR_DEBUG_PRINTF("%2.2x ", assocInfo[i]);
sprintf(pos, "%2.2x", assocInfo[i]);
pos += 2;
}
AR_DEBUG_PRINTF("\n");
A_MEMZERO(&wrqu, sizeof(wrqu));
wrqu.data.length = strlen(buf);
wireless_send_event(ar->arNetDev, IWEVCUSTOM, &wrqu, buf);
}
if (assocRespLen && (sizeof(buf) > (12 + (assocRespLen * 2))))
{
assoc_resp_ie_pos = beaconIeLen + assocReqLen +
sizeof(A_UINT16) + /* capinfo*/
sizeof(A_UINT16) + /* status Code */
sizeof(A_UINT16) ; /* associd */
A_MEMZERO(buf, sizeof(buf));
sprintf(buf, "%s", tag2);
pos = buf + 12;
AR_DEBUG_PRINTF("\nAssocRespIEs= ");
/*
* The Association Response Frame w.o. the WLAN header is delivered to
* the host, so skip over to the IEs
*/
for (i = assoc_resp_ie_pos; i < assoc_resp_ie_pos + assocRespLen - 6; i++)
{
AR_DEBUG_PRINTF("%2.2x ", assocInfo[i]);
sprintf(pos, "%2.2x", assocInfo[i]);
pos += 2;
}
AR_DEBUG_PRINTF("\n");
A_MEMZERO(&wrqu, sizeof(wrqu));
wrqu.data.length = strlen(buf);
wireless_send_event(ar->arNetDev, IWEVCUSTOM, &wrqu, buf);
}
if (assocReqLen && (sizeof(buf) > (17 + (assocReqLen * 2)))) {
/*
* assoc Request includes capability and listen interval. Skip these.
*/
assoc_req_ie_pos = beaconIeLen +
sizeof(A_UINT16) + /* capinfo*/
sizeof(A_UINT16); /* listen interval */
A_MEMZERO(buf, sizeof(buf));
sprintf(buf, "%s", tag1);
pos = buf + 17;
AR_DEBUG_PRINTF("AssocReqIEs= ");
for (i = assoc_req_ie_pos; i < assoc_req_ie_pos + assocReqLen - 4; i++) {
AR_DEBUG_PRINTF("%2.2x ", assocInfo[i]);
sprintf(pos, "%2.2x", assocInfo[i]);
pos += 2;;
}
AR_DEBUG_PRINTF("\n");
A_MEMZERO(&wrqu, sizeof(wrqu));
wrqu.data.length = strlen(buf);
wireless_send_event(ar->arNetDev, IWEVCUSTOM, &wrqu, buf);
}
#ifdef USER_KEYS
if (ar->user_savedkeys_stat == USER_SAVEDKEYS_STAT_RUN &&
ar->user_saved_keys.keyOk == TRUE)
{
key_op_ctrl = KEY_OP_VALID_MASK & ~KEY_OP_INIT_TSC;
if (ar->user_key_ctrl & AR6000_USER_SETKEYS_RSC_UNCHANGED) {
key_op_ctrl &= ~KEY_OP_INIT_RSC;
} else {
key_op_ctrl |= KEY_OP_INIT_RSC;
}
ar6000_reinstall_keys(ar, key_op_ctrl);
}
#endif /* USER_KEYS */
/* flush data queues */
ar6000_TxDataCleanup(ar);
netif_start_queue(ar->arNetDev);
if ((OPEN_AUTH == ar->arDot11AuthMode) &&
(NONE_AUTH == ar->arAuthMode) &&
(WEP_CRYPT == ar->arPairwiseCrypto))
{
if (!ar->arConnected) {
ar6000_install_static_wep_keys(ar);
}
}
ar->arConnected = TRUE;
ar->arConnectPending = FALSE;
reconnect_flag = 0;
A_MEMZERO(&wrqu, sizeof(wrqu));
A_MEMCPY(wrqu.addr.sa_data, bssid, IEEE80211_ADDR_LEN);
wrqu.addr.sa_family = ARPHRD_ETHER;
wireless_send_event(ar->arNetDev, SIOCGIWAP, &wrqu, NULL);
if ((ar->arNetworkType == ADHOC_NETWORK) && ar->arIbssPsEnable) {
A_MEMZERO(ar->arNodeMap, sizeof(ar->arNodeMap));
ar->arNodeNum = 0;
ar->arNexEpId = ENDPOINT_2;
}
}
void ar6000_set_numdataendpts(AR_SOFTC_T *ar, A_UINT32 num)
{
A_ASSERT(num <= (HTC_MAILBOX_NUM_MAX - 1));
ar->arNumDataEndPts = num;
}
void
ar6000_disconnect_event(AR_SOFTC_T *ar, A_UINT8 reason, A_UINT8 *bssid,
A_UINT8 assocRespLen, A_UINT8 *assocInfo, A_UINT16 protocolReasonStatus)
{
A_UINT8 i;
A_PRINTF("AR6000 disconnected");
if (bssid[0] || bssid[1] || bssid[2] || bssid[3] || bssid[4] || bssid[5]) {
A_PRINTF(" from %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x ",
bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5]);
}
A_PRINTF("\n");
AR_DEBUG_PRINTF("\nDisconnect Reason is %d", reason);
AR_DEBUG_PRINTF("\nProtocol Reason/Status Code is %d", protocolReasonStatus);
AR_DEBUG_PRINTF("\nAssocResp Frame = %s",
assocRespLen ? " " : "NULL");
for (i = 0; i < assocRespLen; i++) {
if (!(i % 0x10)) {
AR_DEBUG_PRINTF("\n");
}
AR_DEBUG_PRINTF("%2.2x ", assocInfo[i]);
}
AR_DEBUG_PRINTF("\n");
/*
* If the event is due to disconnect cmd from the host, only they the target
* would stop trying to connect. Under any other condition, target would
* keep trying to connect.
*
*/
if( reason == DISCONNECT_CMD)
{
ar->arConnectPending = FALSE;
} else {
ar->arConnectPending = TRUE;
if (((reason == ASSOC_FAILED) && (protocolReasonStatus == 0x11)) ||
((reason == ASSOC_FAILED) && (protocolReasonStatus == 0x0) && (reconnect_flag == 1))) {
ar->arConnected = TRUE;
return;
}
}
ar->arConnected = FALSE;
if( (reason != CSERV_DISCONNECT) || (reconnect_flag != 1) ) {
reconnect_flag = 0;
}
#ifdef USER_KEYS
if (reason != CSERV_DISCONNECT)
{
ar->user_savedkeys_stat = USER_SAVEDKEYS_STAT_INIT;
ar->user_key_ctrl = 0;
}
#endif /* USER_KEYS */
netif_stop_queue(ar->arNetDev);
A_MEMZERO(ar->arBssid, sizeof(ar->arBssid));
ar->arBssChannel = 0;
ar->arBeaconInterval = 0;
ar6000_TxDataCleanup(ar);
}
void
ar6000_regDomain_event(AR_SOFTC_T *ar, A_UINT32 regCode)
{
A_PRINTF("AR6000 Reg Code = 0x%x\n", regCode);
ar->arRegCode = regCode;
}
void
ar6000_neighborReport_event(AR_SOFTC_T *ar, int numAps, WMI_NEIGHBOR_INFO *info)
{
static const char *tag = "PRE-AUTH";
char buf[128];
union iwreq_data wrqu;
int i;
AR_DEBUG_PRINTF("AR6000 Neighbor Report Event\n");
for (i=0; i < numAps; info++, i++) {
AR_DEBUG_PRINTF("bssid %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x ",
info->bssid[0], info->bssid[1], info->bssid[2],
info->bssid[3], info->bssid[4], info->bssid[5]);
if (info->bssFlags & WMI_PREAUTH_CAPABLE_BSS) {
AR_DEBUG_PRINTF("preauth-cap");
}
if (info->bssFlags & WMI_PMKID_VALID_BSS) {
AR_DEBUG_PRINTF(" pmkid-valid\n");
continue; /* we skip bss if the pmkid is already valid */
}
AR_DEBUG_PRINTF("\n");
snprintf(buf, sizeof(buf), "%s%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x",
tag,
info->bssid[0], info->bssid[1], info->bssid[2],
info->bssid[3], info->bssid[4], info->bssid[5],
i, info->bssFlags);
A_MEMZERO(&wrqu, sizeof(wrqu));
wrqu.data.length = strlen(buf);
wireless_send_event(ar->arNetDev, IWEVCUSTOM, &wrqu, buf);
}
}
void
ar6000_tkip_micerr_event(AR_SOFTC_T *ar, A_UINT8 keyid, A_BOOL ismcast)
{
static const char *tag = "MLME-MICHAELMICFAILURE.indication";
char buf[128];
union iwreq_data wrqu;
A_PRINTF("AR6000 TKIP MIC error received for keyid %d %scast\n",
keyid, ismcast ? "multi": "uni");
snprintf(buf, sizeof(buf), "%s(keyid=%d %scat)", tag, keyid,
ismcast ? "multi" : "uni");
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = strlen(buf);
wireless_send_event(ar->arNetDev, IWEVCUSTOM, &wrqu, buf);
}
void
ar6000_scanComplete_event(AR_SOFTC_T *ar, A_STATUS status)
{
AR_DEBUG_PRINTF("AR6000 scan complete: %d\n", status);
ar->scan_complete = 1;
wake_up_interruptible(&ar6000_scan_queue);
}
void
ar6000_targetStats_event(AR_SOFTC_T *ar, WMI_TARGET_STATS *pTarget)
{
TARGET_STATS *pStats = &ar->arTargetStats;
A_UINT8 ac;
/*A_PRINTF("AR6000 updating target stats\n");*/
pStats->tx_packets += pTarget->txrxStats.tx_stats.tx_packets;
pStats->tx_bytes += pTarget->txrxStats.tx_stats.tx_bytes;
pStats->tx_unicast_pkts += pTarget->txrxStats.tx_stats.tx_unicast_pkts;
pStats->tx_unicast_bytes += pTarget->txrxStats.tx_stats.tx_unicast_bytes;
pStats->tx_multicast_pkts += pTarget->txrxStats.tx_stats.tx_multicast_pkts;
pStats->tx_multicast_bytes += pTarget->txrxStats.tx_stats.tx_multicast_bytes;
pStats->tx_broadcast_pkts += pTarget->txrxStats.tx_stats.tx_broadcast_pkts;
pStats->tx_broadcast_bytes += pTarget->txrxStats.tx_stats.tx_broadcast_bytes;
pStats->tx_rts_success_cnt += pTarget->txrxStats.tx_stats.tx_rts_success_cnt;
for(ac = 0; ac < WMM_NUM_AC; ac++)
pStats->tx_packet_per_ac[ac] += pTarget->txrxStats.tx_stats.tx_packet_per_ac[ac];
pStats->tx_errors += pTarget->txrxStats.tx_stats.tx_errors;
pStats->tx_failed_cnt += pTarget->txrxStats.tx_stats.tx_failed_cnt;
pStats->tx_retry_cnt += pTarget->txrxStats.tx_stats.tx_retry_cnt;
pStats->tx_rts_fail_cnt += pTarget->txrxStats.tx_stats.tx_rts_fail_cnt;
pStats->tx_unicast_rate = wmi_get_rate(pTarget->txrxStats.tx_stats.tx_unicast_rate);
pStats->rx_packets += pTarget->txrxStats.rx_stats.rx_packets;
pStats->rx_bytes += pTarget->txrxStats.rx_stats.rx_bytes;
pStats->rx_unicast_pkts += pTarget->txrxStats.rx_stats.rx_unicast_pkts;
pStats->rx_unicast_bytes += pTarget->txrxStats.rx_stats.rx_unicast_bytes;
pStats->rx_multicast_pkts += pTarget->txrxStats.rx_stats.rx_multicast_pkts;
pStats->rx_multicast_bytes += pTarget->txrxStats.rx_stats.rx_multicast_bytes;
pStats->rx_broadcast_pkts += pTarget->txrxStats.rx_stats.rx_broadcast_pkts;
pStats->rx_broadcast_bytes += pTarget->txrxStats.rx_stats.rx_broadcast_bytes;
pStats->rx_fragment_pkt += pTarget->txrxStats.rx_stats.rx_fragment_pkt;
pStats->rx_errors += pTarget->txrxStats.rx_stats.rx_errors;
pStats->rx_crcerr += pTarget->txrxStats.rx_stats.rx_crcerr;
pStats->rx_key_cache_miss += pTarget->txrxStats.rx_stats.rx_key_cache_miss;
pStats->rx_decrypt_err += pTarget->txrxStats.rx_stats.rx_decrypt_err;
pStats->rx_duplicate_frames += pTarget->txrxStats.rx_stats.rx_duplicate_frames;
pStats->rx_unicast_rate = wmi_get_rate(pTarget->txrxStats.rx_stats.rx_unicast_rate);
pStats->tkip_local_mic_failure
+= pTarget->txrxStats.tkipCcmpStats.tkip_local_mic_failure;
pStats->tkip_counter_measures_invoked
+= pTarget->txrxStats.tkipCcmpStats.tkip_counter_measures_invoked;
pStats->tkip_replays += pTarget->txrxStats.tkipCcmpStats.tkip_replays;
pStats->tkip_format_errors += pTarget->txrxStats.tkipCcmpStats.tkip_format_errors;
pStats->ccmp_format_errors += pTarget->txrxStats.tkipCcmpStats.ccmp_format_errors;
pStats->ccmp_replays += pTarget->txrxStats.tkipCcmpStats.ccmp_replays;
pStats->power_save_failure_cnt += pTarget->pmStats.power_save_failure_cnt;
pStats->noise_floor_calibation = pTarget->noise_floor_calibation;
pStats->cs_bmiss_cnt += pTarget->cservStats.cs_bmiss_cnt;
pStats->cs_lowRssi_cnt += pTarget->cservStats.cs_lowRssi_cnt;
pStats->cs_connect_cnt += pTarget->cservStats.cs_connect_cnt;
pStats->cs_disconnect_cnt += pTarget->cservStats.cs_disconnect_cnt;
pStats->cs_aveBeacon_snr = pTarget->cservStats.cs_aveBeacon_snr;
pStats->cs_aveBeacon_rssi = pTarget->cservStats.cs_aveBeacon_rssi;
pStats->cs_lastRoam_msec = pTarget->cservStats.cs_lastRoam_msec;
pStats->cs_snr = pTarget->cservStats.cs_snr;
pStats->cs_rssi = pTarget->cservStats.cs_rssi;
pStats->lq_val = pTarget->lqVal;
pStats->wow_num_pkts_dropped += pTarget->wowStats.wow_num_pkts_dropped;
pStats->wow_num_host_pkt_wakeups += pTarget->wowStats.wow_num_host_pkt_wakeups;
pStats->wow_num_host_event_wakeups += pTarget->wowStats.wow_num_host_event_wakeups;
pStats->wow_num_events_discarded += pTarget->wowStats.wow_num_events_discarded;
ar->statsUpdatePending = FALSE;
wake_up(&arEvent);
}
void
ar6000_rssiThreshold_event(AR_SOFTC_T *ar, WMI_RSSI_THRESHOLD_VAL newThreshold, A_INT16 rssi)
{
USER_RSSI_THOLD userRssiThold;
userRssiThold.tag = rssi_map[newThreshold].tag;
userRssiThold.rssi = rssi;
AR_DEBUG2_PRINTF("rssi Threshold range = %d tag = %d rssi = %d\n", newThreshold, userRssiThold.tag, rssi);
#ifdef SEND_EVENT_TO_APP
ar6000_send_event_to_app(ar, WMI_RSSI_THRESHOLD_EVENTID,(A_UINT8 *)&userRssiThold, sizeof(USER_RSSI_THOLD));
#endif
}
void
ar6000_hbChallengeResp_event(AR_SOFTC_T *ar, A_UINT32 cookie, A_UINT32 source)
{
if (source == APP_HB_CHALLENGE) {
/* Report it to the app in case it wants a positive acknowledgement */
#ifdef SEND_EVENT_TO_APP
ar6000_send_event_to_app(ar, WMIX_HB_CHALLENGE_RESP_EVENTID,
(A_UINT8 *)&cookie, sizeof(cookie));
#endif
} else {
/* This would ignore the replys that come in after their due time */
if (cookie == ar->arHBChallengeResp.seqNum) {
ar->arHBChallengeResp.outstanding = FALSE;
}
}
}
void
ar6000_reportError_event(AR_SOFTC_T *ar, WMI_TARGET_ERROR_VAL errorVal)
{
char *errString[] = {
[WMI_TARGET_PM_ERR_FAIL] "WMI_TARGET_PM_ERR_FAIL",
[WMI_TARGET_KEY_NOT_FOUND] "WMI_TARGET_KEY_NOT_FOUND",
[WMI_TARGET_DECRYPTION_ERR] "WMI_TARGET_DECRYPTION_ERR",
[WMI_TARGET_BMISS] "WMI_TARGET_BMISS",
[WMI_PSDISABLE_NODE_JOIN] "WMI_PSDISABLE_NODE_JOIN"
};
A_PRINTF("AR6000 Error on Target. Error = 0x%x\n", errorVal);
/* One error is reported at a time, and errorval is a bitmask */
if(errorVal & (errorVal - 1))
return;
A_PRINTF("AR6000 Error type = ");
switch(errorVal)
{
case WMI_TARGET_PM_ERR_FAIL:
case WMI_TARGET_KEY_NOT_FOUND:
case WMI_TARGET_DECRYPTION_ERR:
case WMI_TARGET_BMISS:
case WMI_PSDISABLE_NODE_JOIN:
A_PRINTF("%s\n", errString[errorVal]);
break;
default:
A_PRINTF("INVALID\n");
break;
}
}
void
ar6000_cac_event(AR_SOFTC_T *ar, A_UINT8 ac, A_UINT8 cacIndication,
A_UINT8 statusCode, A_UINT8 *tspecSuggestion)
{
WMM_TSPEC_IE *tspecIe;
/*
* This is the TSPEC IE suggestion from AP.
* Suggestion provided by AP under some error
* cases, could be helpful for the host app.
* Check documentation.
*/
tspecIe = (WMM_TSPEC_IE *)tspecSuggestion;
/*
* What do we do, if we get TSPEC rejection? One thought
* that comes to mind is implictly delete the pstream...
*/
A_PRINTF("AR6000 CAC notification. "
"AC = %d, cacIndication = 0x%x, statusCode = 0x%x\n",
ac, cacIndication, statusCode);
}
#define AR6000_PRINT_BSSID(_pBss) do { \
A_PRINTF("%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x ",\
(_pBss)[0],(_pBss)[1],(_pBss)[2],(_pBss)[3],\
(_pBss)[4],(_pBss)[5]); \
} while(0)
void
ar6000_roam_tbl_event(AR_SOFTC_T *ar, WMI_TARGET_ROAM_TBL *pTbl)
{
A_UINT8 i;
A_PRINTF("ROAM TABLE NO OF ENTRIES is %d ROAM MODE is %d\n",
pTbl->numEntries, pTbl->roamMode);
for (i= 0; i < pTbl->numEntries; i++) {
A_PRINTF("[%d]bssid %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x ", i,
pTbl->bssRoamInfo[i].bssid[0], pTbl->bssRoamInfo[i].bssid[1],
pTbl->bssRoamInfo[i].bssid[2],
pTbl->bssRoamInfo[i].bssid[3],
pTbl->bssRoamInfo[i].bssid[4],
pTbl->bssRoamInfo[i].bssid[5]);
A_PRINTF("RSSI %d RSSIDT %d LAST RSSI %d UTIL %d ROAM_UTIL %d"
" BIAS %d\n",
pTbl->bssRoamInfo[i].rssi,
pTbl->bssRoamInfo[i].rssidt,
pTbl->bssRoamInfo[i].last_rssi,
pTbl->bssRoamInfo[i].util,
pTbl->bssRoamInfo[i].roam_util,
pTbl->bssRoamInfo[i].bias);
}
}
void
ar6000_wow_list_event(struct ar6_softc *ar, A_UINT8 num_filters, WMI_GET_WOW_LIST_REPLY *wow_reply)
{
A_UINT8 i,j;
/*Each event now contains exactly one filter, see bug 26613*/
A_PRINTF("WOW pattern %d of %d patterns\n", wow_reply->this_filter_num, wow_reply->num_filters);
A_PRINTF("wow mode = %s host mode = %s\n",
(wow_reply->wow_mode == 0? "disabled":"enabled"),
(wow_reply->host_mode == 1 ? "awake":"asleep"));
/*If there are no patterns, the reply will only contain generic
WoW information. Pattern information will exist only if there are
patterns present. Bug 26716*/
/* If this event contains pattern information, display it*/
if (wow_reply->this_filter_num) {
i=0;
A_PRINTF("id=%d size=%d offset=%d\n",
wow_reply->wow_filters[i].wow_filter_id,
wow_reply->wow_filters[i].wow_filter_size,
wow_reply->wow_filters[i].wow_filter_offset);
A_PRINTF("wow pattern = ");
for (j=0; j< wow_reply->wow_filters[i].wow_filter_size; j++) {
A_PRINTF("%2.2x",wow_reply->wow_filters[i].wow_filter_pattern[j]);
}
A_PRINTF("\nwow mask = ");
for (j=0; j< wow_reply->wow_filters[i].wow_filter_size; j++) {
A_PRINTF("%2.2x",wow_reply->wow_filters[i].wow_filter_mask[j]);
}
A_PRINTF("\n");
}
}
/*
* Report the Roaming related data collected on the target
*/
void
ar6000_display_roam_time(WMI_TARGET_ROAM_TIME *p)
{
A_PRINTF("Disconnect Data : BSSID: ");
AR6000_PRINT_BSSID(p->disassoc_bssid);
A_PRINTF(" RSSI %d DISASSOC Time %d NO_TXRX_TIME %d\n",
p->disassoc_bss_rssi,p->disassoc_time,
p->no_txrx_time);
A_PRINTF("Connect Data: BSSID: ");
AR6000_PRINT_BSSID(p->assoc_bssid);
A_PRINTF(" RSSI %d ASSOC Time %d TXRX_TIME %d\n",
p->assoc_bss_rssi,p->assoc_time,
p->allow_txrx_time);
A_PRINTF("Last Data Tx Time (b4 Disassoc) %d "\
"First Data Tx Time (after Assoc) %d\n",
p->last_data_txrx_time, p->first_data_txrx_time);
}
void
ar6000_roam_data_event(AR_SOFTC_T *ar, WMI_TARGET_ROAM_DATA *p)
{
switch (p->roamDataType) {
case ROAM_DATA_TIME:
ar6000_display_roam_time(&p->u.roamTime);
break;
default:
break;
}
}
void
ar6000_bssInfo_event_rx(AR_SOFTC_T *ar, A_UINT8 *datap, int len)
{
struct sk_buff *skb;
WMI_BSS_INFO_HDR *bih = (WMI_BSS_INFO_HDR *)datap;
if (!ar->arMgmtFilter) {
return;
}
if (((ar->arMgmtFilter & IEEE80211_FILTER_TYPE_BEACON) &&
(bih->frameType != BEACON_FTYPE)) ||
((ar->arMgmtFilter & IEEE80211_FILTER_TYPE_PROBE_RESP) &&
(bih->frameType != PROBERESP_FTYPE)))
{
return;
}
if ((skb = A_NETBUF_ALLOC_RAW(len)) != NULL) {
A_NETBUF_PUT(skb, len);
A_MEMCPY(A_NETBUF_DATA(skb), datap, len);
skb->dev = ar->arNetDev;
printk("MAC RAW...\n");
// skb->mac.raw = A_NETBUF_DATA(skb);
skb->ip_summed = CHECKSUM_NONE;
skb->pkt_type = PACKET_OTHERHOST;
skb->protocol = __constant_htons(0x0019);
netif_rx(skb);
}
}
A_UINT32 wmiSendCmdNum;
A_STATUS
ar6000_control_tx(void *devt, void *osbuf, WMI_PRI_STREAM_ID streamID)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)devt;
A_STATUS status = A_OK;
struct ar_cookie *cookie = NULL;
int i;
/* take lock to protect ar6000_alloc_cookie() */
AR6000_SPIN_LOCK(&ar->arLock, 0);
do {
AR_DEBUG2_PRINTF("ar_contrstatus = ol_tx: skb=0x%x, len=0x%x, sid=%d\n",
(A_UINT32)osbuf, A_NETBUF_LEN(osbuf), streamID);
if ((streamID == WMI_CONTROL_PRI) && (ar->arWMIControlEpFull)) {
/* control endpoint is full, don't allocate resources, we
* are just going to drop this packet */
cookie = NULL;
AR_DEBUG_PRINTF(" WMI Control EP full, dropping packet : 0x%X, len:%d \n",
(A_UINT32)osbuf, A_NETBUF_LEN(osbuf));
} else {
cookie = ar6000_alloc_cookie(ar);
}
if (cookie == NULL) {
status = A_NO_MEMORY;
break;
}
if(logWmiRawMsgs) {
A_PRINTF("WMI cmd send, msgNo %d :", wmiSendCmdNum);
for(i = 0; i < a_netbuf_to_len(osbuf); i++)
A_PRINTF("%x ", ((A_UINT8 *)a_netbuf_to_data(osbuf))[i]);
A_PRINTF("\n");
}
wmiSendCmdNum++;
} while (FALSE);
if (cookie != NULL) {
/* got a structure to send it out on */
ar->arTxPending[streamID]++;
if (streamID != WMI_CONTROL_PRI) {
ar->arTotalTxDataPending++;
}
}
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
if (cookie != NULL) {
cookie->arc_bp[0] = (A_UINT32)osbuf;
cookie->arc_bp[1] = 0;
SET_HTC_PACKET_INFO_TX(&cookie->HtcPkt,
cookie,
A_NETBUF_DATA(osbuf),
A_NETBUF_LEN(osbuf),
arWMIStream2EndpointID(ar,streamID),
AR6K_CONTROL_PKT_TAG);
/* this interface is asynchronous, if there is an error, cleanup will happen in the
* TX completion callback */
HTCSendPkt(ar->arHtcTarget, &cookie->HtcPkt);
status = A_OK;
}
return status;
}
/* indicate tx activity or inactivity on a WMI stream */
void ar6000_indicate_tx_activity(void *devt, A_UINT8 TrafficClass, A_BOOL Active)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)devt;
WMI_PRI_STREAM_ID streamid;
if (ar->arWmiEnabled) {
streamid = wmi_get_stream_id(ar->arWmi, TrafficClass);
} else {
/* for mbox ping testing, the traffic class is mapped directly as a stream ID,
* see handling of AR6000_XIOCTL_TRAFFIC_ACTIVITY_CHANGE in ioctl.c */
streamid = (WMI_PRI_STREAM_ID)TrafficClass;
}
/* notify HTC, this may cause credit distribution changes */
HTCIndicateActivityChange(ar->arHtcTarget,
arWMIStream2EndpointID(ar,streamid),
Active);
}
module_init(ar6000_init_module);
module_exit(ar6000_cleanup_module);
/* Init cookie queue */
static void
ar6000_cookie_init(AR_SOFTC_T *ar)
{
A_UINT32 i;
ar->arCookieList = NULL;
A_MEMZERO(s_ar_cookie_mem, sizeof(s_ar_cookie_mem));
for (i = 0; i < MAX_COOKIE_NUM; i++) {
ar6000_free_cookie(ar, &s_ar_cookie_mem[i]);
}
}
/* cleanup cookie queue */
static void
ar6000_cookie_cleanup(AR_SOFTC_T *ar)
{
/* It is gone .... */
ar->arCookieList = NULL;
}
/* Init cookie queue */
static void
ar6000_free_cookie(AR_SOFTC_T *ar, struct ar_cookie * cookie)
{
/* Insert first */
A_ASSERT(ar != NULL);
A_ASSERT(cookie != NULL);
cookie->arc_list_next = ar->arCookieList;
ar->arCookieList = cookie;
}
/* cleanup cookie queue */
static struct ar_cookie *
ar6000_alloc_cookie(AR_SOFTC_T *ar)
{
struct ar_cookie *cookie;
cookie = ar->arCookieList;
if(cookie != NULL)
{
ar->arCookieList = cookie->arc_list_next;
}
return cookie;
}
#ifdef SEND_EVENT_TO_APP
/*
* This function is used to send event which come from taget to
* the application. The buf which send to application is include
* the event ID and event content.
*/
#define EVENT_ID_LEN 2
void ar6000_send_event_to_app(AR_SOFTC_T *ar, A_UINT16 eventId,
A_UINT8 *datap, int len)
{
#if (WIRELESS_EXT >= 15)
/* note: IWEVCUSTOM only exists in wireless extensions after version 15 */
char *buf;
A_UINT16 size;
union iwreq_data wrqu;
size = len + EVENT_ID_LEN;
if (size > IW_CUSTOM_MAX) {
AR_DEBUG_PRINTF("WMI event ID : 0x%4.4X, len = %d too big for IWEVCUSTOM (max=%d) \n",
eventId, size, IW_CUSTOM_MAX);
return;
}
buf = A_MALLOC_NOWAIT(size);
A_MEMZERO(buf, size);
A_MEMCPY(buf, &eventId, EVENT_ID_LEN);
A_MEMCPY(buf+EVENT_ID_LEN, datap, len);
//AR_DEBUG_PRINTF("event ID = %d,len = %d\n",*(A_UINT16*)buf, size);
A_MEMZERO(&wrqu, sizeof(wrqu));
wrqu.data.length = size;
wireless_send_event(ar->arNetDev, IWEVCUSTOM, &wrqu, buf);
A_FREE(buf);
#endif
}
#endif
void
ar6000_tx_retry_err_event(void *devt)
{
AR_DEBUG2_PRINTF("Tx retries reach maximum!\n");
}
void
ar6000_snrThresholdEvent_rx(void *devt, WMI_SNR_THRESHOLD_VAL newThreshold, A_UINT8 snr)
{
AR_DEBUG2_PRINTF("snr threshold range %d, snr %d\n", newThreshold, snr);
}
void
ar6000_lqThresholdEvent_rx(void *devt, WMI_LQ_THRESHOLD_VAL newThreshold, A_UINT8 lq)
{
AR_DEBUG2_PRINTF("lq threshold range %d, lq %d\n", newThreshold, lq);
}
A_UINT32
a_copy_to_user(void *to, const void *from, A_UINT32 n)
{
return(copy_to_user(to, from, n));
}
A_UINT32
a_copy_from_user(void *to, const void *from, A_UINT32 n)
{
return(copy_from_user(to, from, n));
}
A_STATUS
ar6000_get_driver_cfg(struct net_device *dev,
A_UINT16 cfgParam,
void *result)
{
A_STATUS ret = 0;
switch(cfgParam)
{
case AR6000_DRIVER_CFG_GET_WLANNODECACHING:
*((A_UINT32 *)result) = wlanNodeCaching;
break;
case AR6000_DRIVER_CFG_LOG_RAW_WMI_MSGS:
*((A_UINT32 *)result) = logWmiRawMsgs;
break;
default:
ret = EINVAL;
break;
}
return ret;
}
void
ar6000_keepalive_rx(void *devt, A_UINT8 configured)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)devt;
ar->arKeepaliveConfigured = configured;
wake_up(&arEvent);
}
void
ar6000_pmkid_list_event(void *devt, A_UINT8 numPMKID, WMI_PMKID *pmkidList)
{
A_UINT8 i, j;
A_PRINTF("Number of Cached PMKIDs is %d\n", numPMKID);
for (i = 0; i < numPMKID; i++) {
A_PRINTF("\nPMKID %d ", i);
for (j = 0; j < WMI_PMKID_LEN; j++) {
A_PRINTF("%2.2x", pmkidList->pmkid[j]);
}
pmkidList++;
}
}
#ifdef USER_KEYS
static A_STATUS
ar6000_reinstall_keys(AR_SOFTC_T *ar, A_UINT8 key_op_ctrl)
{
A_STATUS status = A_OK;
struct ieee80211req_key *uik = &ar->user_saved_keys.ucast_ik;
struct ieee80211req_key *bik = &ar->user_saved_keys.bcast_ik;
CRYPTO_TYPE keyType = ar->user_saved_keys.keyType;
if (IEEE80211_CIPHER_CCKM_KRK != uik->ik_type) {
if (NONE_CRYPT == keyType) {
goto _reinstall_keys_out;
}
if (uik->ik_keylen) {
status = wmi_addKey_cmd(ar->arWmi, uik->ik_keyix,
ar->user_saved_keys.keyType, PAIRWISE_USAGE,
uik->ik_keylen, (A_UINT8 *)&uik->ik_keyrsc,
uik->ik_keydata, key_op_ctrl, SYNC_BEFORE_WMIFLAG);
}
} else {
status = wmi_add_krk_cmd(ar->arWmi, uik->ik_keydata);
}
if (IEEE80211_CIPHER_CCKM_KRK != bik->ik_type) {
if (NONE_CRYPT == keyType) {
goto _reinstall_keys_out;
}
if (bik->ik_keylen) {
status = wmi_addKey_cmd(ar->arWmi, bik->ik_keyix,
ar->user_saved_keys.keyType, GROUP_USAGE,
bik->ik_keylen, (A_UINT8 *)&bik->ik_keyrsc,
bik->ik_keydata, key_op_ctrl, NO_SYNC_WMIFLAG);
}
} else {
status = wmi_add_krk_cmd(ar->arWmi, bik->ik_keydata);
}
_reinstall_keys_out:
ar->user_savedkeys_stat = USER_SAVEDKEYS_STAT_INIT;
ar->user_key_ctrl = 0;
return status;
}
#endif /* USER_KEYS */
void
ar6000_dset_open_req(
void *context,
A_UINT32 id,
A_UINT32 targHandle,
A_UINT32 targReplyFn,
A_UINT32 targReplyArg)
{
}
void
ar6000_dset_close(
void *context,
A_UINT32 access_cookie)
{
return;
}
void
ar6000_dset_data_req(
void *context,
A_UINT32 accessCookie,
A_UINT32 offset,
A_UINT32 length,
A_UINT32 targBuf,
A_UINT32 targReplyFn,
A_UINT32 targReplyArg)
{
}
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