diff options
Diffstat (limited to 'drivers/ar6000/ar6000/ar6000_drv.c')
| -rw-r--r-- | drivers/ar6000/ar6000/ar6000_drv.c | 3129 |
1 files changed, 3129 insertions, 0 deletions
diff --git a/drivers/ar6000/ar6000/ar6000_drv.c b/drivers/ar6000/ar6000/ar6000_drv.c new file mode 100644 index 00000000000..90533ab9610 --- /dev/null +++ b/drivers/ar6000/ar6000/ar6000_drv.c @@ -0,0 +1,3129 @@ +/* + * + * 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 */ + +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(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(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 int ar6000_cleanup(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 *)¶m, 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; +} + +static const struct net_device_ops ar6000_netdev_ops = { + .ndo_init = &ar6000_init, + .ndo_open = &ar6000_open, + .ndo_stop = &ar6000_close, + .ndo_start_xmit = &ar6000_data_tx, + .ndo_get_stats = &ar6000_get_stats, + .ndo_do_ioctl = &ar6000_ioctl, +}; +/* + * 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 *)¶m, + 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 *)¶m, + 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 *)¶m, + 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); + + dev->netdev_ops = &ar6000_netdev_ops; + 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); + ar6000_cleanup(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) +{ + /* Stop the transmit queues */ + netif_stop_queue(dev); + return 0; +} + +static int +ar6000_cleanup(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) +{ +} |