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path: root/drivers/net/wireless/eagle/esp_sip.c
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Diffstat (limited to 'drivers/net/wireless/eagle/esp_sip.c')
-rwxr-xr-xdrivers/net/wireless/eagle/esp_sip.c2377
1 files changed, 2377 insertions, 0 deletions
diff --git a/drivers/net/wireless/eagle/esp_sip.c b/drivers/net/wireless/eagle/esp_sip.c
new file mode 100755
index 00000000..ef11ff57
--- /dev/null
+++ b/drivers/net/wireless/eagle/esp_sip.c
@@ -0,0 +1,2377 @@
+/*
+ * Copyright (c) 2009 - 2013 Espressif System.
+ */
+
+#include <linux/ieee80211.h>
+#include <net/mac80211.h>
+#include <net/cfg80211.h>
+#include <linux/skbuff.h>
+#include <linux/bitops.h>
+#include <linux/version.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/mmc/sdio.h>
+#include <linux/mmc/sd.h>
+#include <linux/completion.h>
+
+#include "esp_pub.h"
+#include "esp_sip.h"
+#include "esp_ctrl.h"
+#include "esp_sif.h"
+#include "esp_debug.h"
+#include "slc_host_register.h"
+#include "esp_wmac.h"
+#include "esp_utils.h"
+#ifdef TEST_MODE
+#include "testmode.h"
+#endif
+
+#ifdef USE_EXT_GPIO
+#include "esp_ext.h"
+#endif /* USE_EXT_GPIO */
+
+extern struct completion *gl_bootup_cplx;
+static u32 bcn_counter = 0;
+static u32 probe_rsp_counter = 0;
+
+static int old_signal = -35;
+static int avg_signal = 0;
+static int signal_loop = 0;
+
+#define SIGNAL_COUNT 300
+
+#define TID_TO_AC(_tid) ((_tid)== 0||((_tid)==3)?WME_AC_BE:((_tid)<3)?WME_AC_BK:((_tid)<6)?WME_AC_VI:WME_AC_VO)
+
+#ifdef SIP_DEBUG
+#define esp_sip_dbg esp_dbg
+struct sip_trace {
+ u32 tx_data;
+ u32 tx_cmd;
+ u32 rx_data;
+ u32 rx_evt;
+ u32 rx_tx_status;
+ u32 tx_out_of_credit;
+ u32 tx_one_shot_overflow;
+};
+static struct sip_trace str;
+#define STRACE_TX_DATA_INC() (str.tx_data++)
+#define STRACE_TX_CMD_INC() (str.tx_cmd++)
+#define STRACE_RX_DATA_INC() (str.rx_data++)
+#define STRACE_RX_EVENT_INC() (str.rx_evt++)
+#define STRACE_RX_TXSTATUS_INC() (str.rx_tx_status++)
+#define STRACE_TX_OUT_OF_CREDIT_INC() (str.tx_out_of_credit++)
+#define STRACE_TX_ONE_SHOT_INC() (str.tx_one_shot_overflow++)
+
+#if 0
+static void sip_show_trace(struct esp_sip *sip);
+#endif //0000
+
+#define STRACE_SHOW(sip) sip_show_trace(sip)
+#else
+#define esp_sip_dbg(...)
+#define STRACE_TX_DATA_INC()
+#define STRACE_TX_CMD_INC()
+#define STRACE_RX_DATA_INC()
+#define STRACE_RX_EVENT_INC()
+#define STRACE_RX_TXSTATUS_INC()
+#define STRACE_TX_OUT_OF_CREDIT_INC()
+#define STRACE_TX_ONE_SHOT_INC()
+#define STRACE_SHOW(sip)
+#endif /* SIP_DEBUG */
+
+#define SIP_STOP_QUEUE_THRESHOLD 48
+#define SIP_RESUME_QUEUE_THRESHOLD 12
+#ifndef FAST_TX_STATUS
+#define SIP_PENDING_STOP_TX_THRESHOLD 6
+#define SIP_PENDING_RESUME_TX_THRESHOLD 6
+#endif /* !FAST_TX_STATUS */
+
+#define SIP_MIN_DATA_PKT_LEN (sizeof(struct esp_mac_rx_ctrl) + 24) //24 is min 80211hdr
+#define TARGET_RX_SIZE 524
+
+static struct sip_pkt *sip_get_ctrl_buf(struct esp_sip *sip, SIP_BUF_TYPE bftype);
+
+static void sip_reclaim_ctrl_buf(struct esp_sip *sip, struct sip_pkt *pkt, SIP_BUF_TYPE bftype);
+
+static void sip_free_init_ctrl_buf(struct esp_sip *sip);
+
+static void sip_dec_credit(struct esp_sip *sip);
+
+
+static int sip_pack_pkt(struct esp_sip *sip, struct sk_buff *skb, int *pm_state);
+
+static struct esp_mac_rx_ctrl *sip_parse_normal_mac_ctrl(struct sk_buff *skb, int * pkt_len_enc, int *buf_len, int *pulled_len);
+
+static struct sk_buff * sip_parse_data_rx_info(struct esp_sip *sip, struct sk_buff *skb, int pkt_len_enc, int buf_len, struct esp_mac_rx_ctrl *mac_ctrl, int *pulled_len);
+
+#ifndef RX_SYNC
+static inline void sip_rx_pkt_enqueue(struct esp_sip *sip, struct sk_buff *skb);
+
+static inline struct sk_buff * sip_rx_pkt_dequeue(struct esp_sip *sip);
+#endif /* RX_SYNC */
+#ifndef FAST_TX_STATUS
+static void sip_after_tx_status_update(struct esp_sip *sip);
+#endif /* !FAST_TX_STATUS */
+
+static void sip_after_write_pkts(struct esp_sip *sip);
+
+//static void show_data_seq(u8 *pkt);
+
+static void sip_update_tx_credits(struct esp_sip *sip, u16 recycled_credits);
+
+//static void sip_trigger_txq_process(struct esp_sip *sip);
+
+#ifndef RX_SYNC
+static bool sip_rx_pkt_process(struct esp_sip * sip, struct sk_buff *skb);
+#else
+static void sip_rx_pkt_process_sync(struct esp_sip *sip, struct sk_buff *skb);
+#endif /* RX_SYNC */
+
+#ifdef FAST_TX_STATUS
+static void sip_tx_status_report(struct esp_sip *sip, struct sk_buff *skb, struct ieee80211_tx_info* tx_info, bool success);
+#endif /* FAST_TX_STATUS */
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 35))
+static void sip_check_skb_alignment(struct sk_buff *skb);
+#endif /* NEW_KERNEL */
+
+#ifdef ESP_RX_COPYBACK_TEST
+/* only for rx test */
+static u8 *copyback_buf;
+static u32 copyback_offset = 0;
+#endif /* ESP_RX_COPYBACK_TEST */
+
+#ifdef FPGA_TXDATA
+int sip_send_tx_data(struct esp_sip *sip);
+#endif/* FPGA_TXDATA */
+
+#ifdef FPGA_LOOPBACK
+int sip_send_loopback_cmd_mblk(struct esp_sip *sip);
+#endif /* FPGA_LOOPBACK */
+
+#ifdef SIP_DEBUG
+#if 0
+static void sip_show_trace(struct esp_sip *sip)
+{
+ esp_sip_dbg(ESP_DBG_TRACE, "\n \t tx_data %u \t tx_cmd %u \t rx_data %u \t rx_evt %u \t rx_tx_status %u \n\n", \
+ str.tx_data, str.tx_cmd, str.rx_data, str.rx_evt, str.rx_tx_status);
+}
+#endif //0000
+#endif //SIP_DEBUG
+
+#if 0
+static void show_data_seq(u8 *pkt)
+{
+ struct ieee80211_hdr * wh = (struct ieee80211_hdr *)pkt;
+ u16 seq = 0;
+
+ if (ieee80211_is_data(wh->frame_control)) {
+ seq = (le16_to_cpu(wh->seq_ctrl) >> 4);
+ esp_sip_dbg(ESP_DBG_TRACE, " ieee80211 seq %u addr1 %pM\n", seq, wh->addr1);
+ } else if (ieee80211_is_beacon(wh->frame_control) || ieee80211_is_probe_resp(wh->frame_control))
+ esp_sip_dbg(ESP_DBG_TRACE, " ieee80211 probe resp or beacon 0x%04x\n", wh->frame_control);
+ else
+ esp_sip_dbg(ESP_DBG_TRACE, " ieee80211 other mgmt pkt 0x%04x\n", wh->frame_control);
+}
+#endif //0000
+
+//#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
+static bool check_ac_tid(u8 *pkt, u8 ac, u8 tid)
+{
+ struct ieee80211_hdr * wh = (struct ieee80211_hdr *)pkt;
+#ifdef TID_DEBUG
+ u16 real_tid = 0;
+#endif //TID_DEBUG
+
+ if (ieee80211_is_data_qos(wh->frame_control)) {
+#ifdef TID_DEBUG
+ real_tid = *ieee80211_get_qos_ctl(wh) & IEEE80211_QOS_CTL_TID_MASK;
+
+ esp_sip_dbg(ESP_SHOW, "ac:%u, tid:%u, tid in pkt:%u\n", ac, tid, real_tid);
+ if (tid != real_tid) {
+ esp_sip_dbg(ESP_DBG_ERROR, "111 ac:%u, tid:%u, tid in pkt:%u\n", ac, tid, real_tid);
+ }
+ if (TID_TO_AC(tid) != ac) {
+ esp_sip_dbg(ESP_DBG_ERROR, "222 ac:%u, tid:%u, tid in pkt:%u\n", ac, tid, real_tid);
+ }
+
+ //ASSERT(tid == real_tid);
+ //ASSERT(TID_TO_AC(tid) == ac);
+#endif /* TID_DEBUG*/
+ } else if (ieee80211_is_mgmt(wh->frame_control)) {
+#ifdef TID_DEBUG
+ esp_sip_dbg(ESP_SHOW, "ac:%u, tid:%u\n", ac, tid);
+ if (tid != 7 || ac != WME_AC_VO) {
+ esp_sip_dbg(ESP_DBG_ERROR, "333 ac:%u, tid:%u\n", ac, tid);
+ }
+ //ASSERT(tid == 7);
+ //ASSERT(ac == WME_AC_VO);
+#endif /* TID_DEBUG*/
+ } else {
+ if (ieee80211_is_ctl(wh->frame_control)) {
+#ifdef TID_DEBUG
+ esp_sip_dbg(ESP_SHOW, "%s is ctrl pkt fc 0x%04x ac:%u, tid:%u, tid in pkt:%u\n", __func__, wh->frame_control, ac, tid, real_tid);
+#endif /* TID_DEBUG*/
+ } else {
+ if (tid != 0 || ac != WME_AC_BE) {
+ //show_buf(pkt, 24);
+ esp_sip_dbg(ESP_DBG_LOG, "444 ac:%u, tid:%u \n", ac, tid);
+ if (tid == 7 && ac == WME_AC_VO)
+ return false;
+ }
+ return true; //hack to modify non-qos null data.
+
+ }
+ //ASSERT(tid == 0);
+ //ASSERT(ac = WME_AC_BE);
+ }
+
+ return false;
+}
+//#endif /* NEW_KERNEL || KERNEL_35 */
+
+static void sip_update_tx_credits(struct esp_sip *sip, u16 recycled_credits)
+{
+ esp_sip_dbg(ESP_DBG_TRACE, "%s:before add, credits is %d\n", __func__, atomic_read(&sip->tx_credits));
+ atomic_add(recycled_credits, &sip->tx_credits);
+ esp_sip_dbg(ESP_DBG_TRACE, "%s:after add %d, credits is %d\n", __func__, recycled_credits, atomic_read(&sip->tx_credits));
+}
+
+void sip_trigger_txq_process(struct esp_sip *sip)
+{
+ if (atomic_read(&sip->tx_credits) <= sip->credit_to_reserve) //no credits, do nothing
+ return;
+
+ if (sip_queue_may_resume(sip)) {
+ /* wakeup upper queue only if we have sufficient credits */
+ esp_sip_dbg(ESP_DBG_TRACE, "%s wakeup ieee80211 txq \n", __func__);
+ atomic_set(&sip->epub->txq_stopped, false);
+ ieee80211_wake_queues(sip->epub->hw);
+ } else if (atomic_read(&sip->epub->txq_stopped) ) {
+ esp_sip_dbg(ESP_DBG_TRACE, "%s can't wake txq, credits: %d \n", __func__, atomic_read(&sip->tx_credits) );
+ }
+
+ if (!skb_queue_empty(&sip->epub->txq)) {
+ /* try to send out pkt already in sip queue once we have credits */
+ esp_sip_dbg(ESP_DBG_TRACE, "%s resume sip txq \n", __func__);
+#if !defined(FPGA_LOOPBACK) && !defined(FPGA_TXDATA) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
+ ieee80211_queue_work(sip->epub->hw, &sip->epub->tx_work);
+#else
+ queue_work(sip->epub->esp_wkq, &sip->epub->tx_work);
+#endif
+ }
+}
+
+static bool sip_ampdu_occupy_buf(struct esp_sip *sip, struct esp_rx_ampdu_len * ampdu_len)
+{
+ return (ampdu_len->substate == 0 || esp_wmac_rxsec_error(ampdu_len->substate) || (sip->dump_rpbm_err && ampdu_len->substate == RX_RPBM_ERR));
+}
+
+#ifdef RX_SYNC
+static void sip_rx_pkt_process_sync(struct esp_sip *sip, struct sk_buff *skb)
+#else
+static bool sip_rx_pkt_process(struct esp_sip * sip, struct sk_buff *skb)
+#endif /* RX_SYNC */
+{
+#define DO_NOT_COPY false
+#define DO_COPY true
+
+ struct sip_hdr * hdr = NULL;
+ struct sk_buff * rskb = NULL;
+ int remains_len = 0;
+ int first_pkt_len = 0;
+ u8 *bufptr = NULL;
+ int ret = 0;
+ bool trigger_rxq = false;
+#ifdef RX_SYNC
+ bool trigger_txq = false;
+#endif/* RX_SYNC */
+
+ if (skb == NULL) {
+ esp_sip_dbg(ESP_DBG_ERROR, "%s NULL SKB!!!!!!!! \n", __func__);
+#ifdef RX_SYNC
+ return;
+#else
+ return trigger_rxq;
+#endif /* RX_SYNC */
+ }
+
+ hdr = (struct sip_hdr *)skb->data;
+ bufptr = skb->data;
+
+
+ esp_sip_dbg(ESP_DBG_TRACE, "%s Hcredits 0x%08x, realCredits %d\n", __func__, hdr->h_credits, hdr->h_credits & SIP_CREDITS_MASK);
+ if (hdr->h_credits & SIP_CREDITS_MASK) {
+ sip_update_tx_credits(sip, hdr->h_credits & SIP_CREDITS_MASK);
+#ifdef RX_SYNC
+ trigger_txq = true;
+#endif/* RX_SYNC */
+ }
+
+ hdr->h_credits &= ~SIP_CREDITS_MASK; /* clean credits in sip_hdr, prevent over-add */
+
+ esp_sip_dbg(ESP_DBG_TRACE, "%s credits %d\n", __func__, hdr->h_credits);
+
+ /*
+ * first pkt's length is stored in recycled_credits first 20 bits
+ * config w3 [31:12]
+ * repair hdr->len of first pkt
+ */
+ remains_len = hdr->len;
+ first_pkt_len = hdr->h_credits >> 12;
+ hdr->len = first_pkt_len;
+
+ esp_dbg(ESP_DBG_TRACE, "%s first_pkt_len %d, whole pkt len %d \n", __func__, first_pkt_len, remains_len);
+ if (first_pkt_len > remains_len) {
+ printk("first_pkt_len %d, whole pkt len %d\n", first_pkt_len, remains_len);
+ show_buf((u8 *)hdr, first_pkt_len);
+ ASSERT(0);
+ }
+
+ /*
+ * pkts handling, including the first pkt, should alloc new skb for each data pkt.
+ * free the original whole skb after parsing is done.
+ */
+ while (remains_len) {
+ ASSERT(remains_len >= sizeof(struct sip_hdr));
+ hdr = (struct sip_hdr *)bufptr;
+ ASSERT(hdr->len > 0);
+ if((hdr->len & 3) != 0) {
+ show_buf((u8 *)hdr, 512);
+ }
+ ASSERT((hdr->len & 3) == 0);
+ if (unlikely(hdr->seq != sip->rxseq++)) {
+ esp_dbg(ESP_DBG_ERROR, "%s seq mismatch! got %u, expect %u\n", __func__, hdr->seq, sip->rxseq-1);
+ show_buf(bufptr, 32);
+ ASSERT(0);
+ }
+
+ if (SIP_HDR_IS_CTRL(hdr)) {
+ STRACE_RX_EVENT_INC();
+ esp_sip_dbg(ESP_DBG_TRACE, "seq %u \n", hdr->seq);
+
+ ret = sip_parse_events(sip, bufptr);
+
+ skb_pull(skb, hdr->len);
+
+ } else if (SIP_HDR_IS_DATA(hdr)) {
+ struct esp_mac_rx_ctrl * mac_ctrl = NULL;
+ int pkt_len_enc = 0, buf_len = 0, pulled_len = 0;
+
+ STRACE_RX_DATA_INC();
+ esp_sip_dbg(ESP_DBG_TRACE, "seq %u \n", hdr->seq);
+ mac_ctrl = sip_parse_normal_mac_ctrl(skb, &pkt_len_enc, &buf_len, &pulled_len);
+ rskb = sip_parse_data_rx_info(sip, skb, pkt_len_enc, buf_len, mac_ctrl, &pulled_len);
+
+ if(rskb == NULL)
+ goto _move_on;
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 35))
+ sip_check_skb_alignment(rskb);
+#endif /* !NEW_KERNEL */
+ if (likely(atomic_read(&sip->epub->wl.off) == 0)) {
+#ifndef RX_SENDUP_SYNC
+ skb_queue_tail(&sip->epub->rxq, rskb);
+ trigger_rxq = true;
+#else
+#ifdef RX_CHECKSUM_TEST
+ esp_rx_checksum_test(rskb);
+#endif
+ local_bh_disable();
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
+ ieee80211_rx(sip->epub->hw, rskb);
+#else
+ //simulate IEEE80211_SKB_RXCB in 2.6.32
+ ieee80211_rx(sip->epub->hw, rskb ,(struct ieee80211_rx_status *)rskb->cb);
+#endif
+ local_bh_enable();
+#endif /* RX_SENDUP_SYNC */
+ } else {
+ /* still need go thro parsing as skb_pull should invoke */
+ kfree_skb(rskb);
+ }
+ } else if (SIP_HDR_IS_AMPDU(hdr)) {
+ struct esp_mac_rx_ctrl * mac_ctrl = NULL;
+ struct esp_mac_rx_ctrl new_mac_ctrl;
+ struct esp_rx_ampdu_len *ampdu_len;
+ int pkt_num;
+ int pulled_len = 0;
+ static int pkt_dropped = 0;
+ static int pkt_total = 0;
+ bool have_rxabort = false;
+ bool have_goodpkt = false;
+ static u8 frame_head[16];
+ static u8 frame_buf_ttl = 0;
+
+ ampdu_len = (struct esp_rx_ampdu_len *)(skb->data + hdr->len/sip->rx_blksz * sip->rx_blksz);
+ esp_sip_dbg(ESP_DBG_TRACE, "%s rx ampdu total len %u\n", __func__, hdr->len);
+ if(skb->data != (u8 *)hdr) {
+ printk("%p %p\n", skb->data, hdr);
+ show_buf(skb->data, 512);
+ show_buf((u8 *)hdr, 512);
+ }
+ ASSERT(skb->data == (u8 *)hdr);
+ mac_ctrl = sip_parse_normal_mac_ctrl(skb, NULL, NULL, &pulled_len);
+ memcpy(&new_mac_ctrl, mac_ctrl, sizeof(struct esp_mac_rx_ctrl));
+ mac_ctrl = &new_mac_ctrl;
+ pkt_num = mac_ctrl->ampdu_cnt;
+ esp_sip_dbg(ESP_DBG_TRACE, "%s %d rx ampdu %u pkts, %d pkts dumped, first len %u\n",
+ __func__, __LINE__, (unsigned int)((hdr->len % sip->rx_blksz) / sizeof(struct esp_rx_ampdu_len)), pkt_num, (unsigned int)ampdu_len->sublen);
+
+ pkt_total += mac_ctrl->ampdu_cnt;
+ //esp_sip_dbg(ESP_DBG_ERROR, "%s ampdu dropped %d/%d\n", __func__, pkt_dropped, pkt_total);
+ while (pkt_num > 0) {
+ esp_sip_dbg(ESP_DBG_TRACE, "%s %d ampdu sub state %02x,\n", __func__, __LINE__, ampdu_len->substate);
+
+ if (sip_ampdu_occupy_buf(sip, ampdu_len)) { //pkt is dumped
+
+ rskb = sip_parse_data_rx_info(sip, skb, ampdu_len->sublen - FCS_LEN, 0, mac_ctrl, &pulled_len);
+ assert(rskb != NULL);
+
+ if (likely(atomic_read(&sip->epub->wl.off) == 0) &&
+ (ampdu_len->substate == 0 || ampdu_len->substate == RX_TKIPMIC_ERR ||
+ (sip->sendup_rpbm_pkt && ampdu_len->substate == RX_RPBM_ERR)) &&
+ (sip->rxabort_fixed || !have_rxabort) )
+ {
+ if(!have_goodpkt) {
+ have_goodpkt = true;
+ memcpy(frame_head, rskb->data, 16);
+ frame_head[1] &= ~0x80;
+ frame_buf_ttl = 3;
+ }
+#ifndef RX_SENDUP_SYNC
+ skb_queue_tail(&sip->epub->rxq, rskb);
+ trigger_rxq = true;
+#else
+#ifdef RX_CHECKSUM_TEST
+ esp_rx_checksum_test(rskb);
+#endif
+ local_bh_disable();
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
+ ieee80211_rx(sip->epub->hw, rskb);
+#else
+ //simulate IEEE80211_SKB_RXCB in 2.6.32
+ ieee80211_rx(sip->epub->hw, rskb ,(struct ieee80211_rx_status *)rskb->cb);
+#endif
+ local_bh_enable();
+#endif /* RX_SENDUP_SYNC */
+
+ } else {
+ kfree_skb(rskb);
+ }
+ } else {
+ if (ampdu_len->substate == RX_ABORT) {
+ u8 * a;
+ have_rxabort = true;
+ esp_sip_dbg(ESP_DBG_TRACE, "rx abort %d %d\n", frame_buf_ttl, pkt_num);
+ if(frame_buf_ttl && !sip->rxabort_fixed) {
+ struct esp_rx_ampdu_len * next_good_ampdu_len = ampdu_len + 1;
+ a = frame_head;
+ esp_sip_dbg(ESP_DBG_TRACE, "frame:%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ a[0], a[1], a[2], a[3], a[4], a[5], a[6], a[7], a[8], a[9], a[10], a[11], a[12], a[13], a[14], a[15]);
+ while(!sip_ampdu_occupy_buf(sip, next_good_ampdu_len)) {
+ if(next_good_ampdu_len > ampdu_len + pkt_num - 1)
+ break;
+ next_good_ampdu_len++;
+
+ }
+ if(next_good_ampdu_len <= ampdu_len + pkt_num -1) {
+ bool b0, b10, b11;
+ a = skb->data;
+ esp_sip_dbg(ESP_DBG_TRACE, "buf:%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ a[0], a[1], a[2], a[3], a[4], a[5], a[6], a[7], a[8], a[9], a[10], a[11], a[12], a[13], a[14], a[15]);
+ b0 = memcmp(frame_head + 4, skb->data + 4, 12) == 0;
+ b10 = memcmp(frame_head + 10, skb->data, 6) == 0;
+ b11 = memcpy(frame_head + 11, skb->data, 5) == 0;
+ esp_sip_dbg(ESP_DBG_TRACE, "com %d %d %d\n", b0, b10, b11);
+ if(b0 && !b10 && !b11) {
+ have_rxabort = false;
+ esp_sip_dbg(ESP_DBG_TRACE, "repair 0\n");
+ } else if(!b0 && b10 && !b11) {
+ skb_push(skb, 10);
+ memcpy(skb->data, frame_head, 10);
+ have_rxabort = false;
+ pulled_len -= 10;
+ esp_sip_dbg(ESP_DBG_TRACE, "repair 10\n");
+ } else if(!b0 && !b10 && b11) {
+ skb_push(skb, 11);
+ memcpy(skb->data, frame_head, 11);
+ have_rxabort = false;
+ pulled_len -= 11;
+ esp_sip_dbg(ESP_DBG_TRACE, "repair 11\n");
+ }
+ }
+ }
+ }
+ pkt_dropped++;
+ esp_sip_dbg(ESP_DBG_LOG, "%s ampdu dropped %d/%d\n", __func__, pkt_dropped, pkt_total);
+ }
+ pkt_num--;
+ ampdu_len++;
+ }
+ if(frame_buf_ttl)
+ frame_buf_ttl--;
+ skb_pull(skb, hdr->len - pulled_len);
+ } else {
+ esp_sip_dbg(ESP_DBG_ERROR, "%s %d unknown type\n", __func__, __LINE__);
+ }
+
+_move_on:
+ if (hdr->len < remains_len) {
+ remains_len -= hdr->len;
+ } else {
+ break;
+ }
+ bufptr += hdr->len;
+ }
+
+ do {
+ ASSERT(skb != rskb);
+ kfree_skb(skb);
+ } while (0);
+
+#ifdef RX_SYNC
+ if (trigger_rxq) {
+ queue_work(sip->epub->esp_wkq, &sip->epub->sendup_work);
+ }
+ if (trigger_txq) {
+ sip_trigger_txq_process(sip);
+ }
+#else
+ return trigger_rxq;
+#endif /* RX_SYNC */
+
+#undef DO_NOT_COPY
+#undef DO_COPY
+}
+
+#ifndef RX_SYNC
+static void _sip_rxq_process(struct esp_sip *sip)
+{
+ struct sk_buff *skb = NULL;
+ bool sendup = false;
+
+ while ((skb = skb_dequeue(&sip->rxq))) {
+ if (sip_rx_pkt_process(sip, skb))
+ sendup = true;
+ }
+#ifndef RX_SENDUP_SYNC
+ if (sendup) {
+ queue_work(sip->epub->esp_wkq, &sip->epub->sendup_work);
+ }
+#endif /* !RX_SENDUP_SYNC */
+
+ /* probably tx_credit is updated, try txq */
+ sip_trigger_txq_process(sip);
+}
+
+void sip_rxq_process(struct work_struct *work)
+{
+ struct esp_sip *sip = container_of(work, struct esp_sip, rx_process_work);
+ ASSERT(sip != NULL);
+
+ if (unlikely(atomic_read(&sip->state) == SIP_SEND_INIT)) {
+ sip_send_chip_init(sip);
+ atomic_set(&sip->state, SIP_WAIT_BOOTUP);
+ return;
+ }
+
+ spin_lock(&sip->rx_lock);
+ _sip_rxq_process(sip);
+ spin_unlock(&sip->rx_lock);
+}
+
+static inline void sip_rx_pkt_enqueue(struct esp_sip *sip, struct sk_buff *skb)
+{
+ skb_queue_tail(&sip->rxq, skb);
+}
+
+static inline struct sk_buff * sip_rx_pkt_dequeue(struct esp_sip *sip) {
+ return skb_dequeue(&sip->rxq);
+}
+#endif /* RX_SYNC */
+
+static u32 sip_rx_count = 0;
+void sip_debug_show(struct esp_sip *sip)
+{
+ esp_sip_dbg(ESP_DBG_ERROR, "txq left %d %d\n", skb_queue_len(&sip->epub->txq), atomic_read(&sip->tx_data_pkt_queued));
+ esp_sip_dbg(ESP_DBG_ERROR, "tx queues stop ? %d\n", atomic_read(&sip->epub->txq_stopped));
+ esp_sip_dbg(ESP_DBG_ERROR, "txq stop? %d\n", test_bit(ESP_WL_FLAG_STOP_TXQ, &sip->epub->wl.flags));
+ esp_sip_dbg(ESP_DBG_ERROR, "tx credit %d\n", atomic_read(&sip->tx_credits));
+ esp_sip_dbg(ESP_DBG_ERROR, "rx collect %d\n", sip_rx_count);
+ sip_rx_count = 0;
+}
+
+#ifndef LOOKAHEAD
+int sip_rx(struct esp_pub *epub)
+{
+ struct sip_hdr *shdr = NULL;
+ struct esp_sip *sip = epub->sip;
+ int err = 0;
+ struct sk_buff *first_skb = NULL;
+ struct sk_buff *next_skb = NULL;
+ u8 *rx_buf = NULL;
+ u32 rx_blksz;
+ u32 first_sz = 4;
+ struct sk_buff *rx_skb = NULL;
+
+ esp_sip_dbg(ESP_DBG_LOG, "%s enter\n", __func__);
+
+
+ /* first read one block out, if we luck enough, that's it
+ *
+ * To make design as simple as possible, we allocate skb(s)
+ * separately for each sif read operation to avoid global
+ * read_buf_pointe access. It coule be optimized late.
+ */
+ rx_blksz = sif_get_blksz(epub);
+ first_skb = __dev_alloc_skb(first_sz, GFP_KERNEL);
+ if (first_skb == NULL) {
+ esp_sip_dbg(ESP_DBG_ERROR, "%s first no memory \n", __func__);
+ goto _err;
+ }
+
+ rx_buf = skb_put(first_skb, first_sz);
+ esp_sip_dbg(ESP_DBG_LOG, "%s rx_buf ptr %p, first_sz %d\n", __func__, rx_buf, first_sz);
+
+ sif_lock_bus(epub);
+
+#ifdef USE_EXT_GPIO
+ do{
+ int err2;
+ u16 value = 0;
+ u16 intr_mask = ext_gpio_get_int_mask_reg();
+ if(!intr_mask)
+ break;
+ err2 = sif_get_gpio_intr(epub, intr_mask, &value);
+ if(!err2 && value) {
+ esp_sip_dbg(ESP_DBG_TRACE, "%s intr_mask[0x%04x] value[0x%04x]\n", __func__, intr_mask, value);
+ ext_gpio_int_process(value);
+ }
+ }while(0);
+#endif
+#ifdef ESP_ACK_INTERRUPT
+#ifdef ESP_ACK_LATER
+ err = esp_common_read(epub, rx_buf, first_sz, ESP_SIF_NOSYNC, true);
+ sif_platform_ack_interrupt(epub);
+#else
+ sif_platform_ack_interrupt(epub);
+ err = esp_common_read(epub, rx_buf, first_sz, ESP_SIF_NOSYNC, true);
+#endif /* ESP_ACK_LATER */
+#else
+ err = esp_common_read(epub, rx_buf, first_sz, ESP_SIF_NOSYNC, true);
+#endif //ESP_ACK_INTERRUPT
+
+ sip_rx_count++;
+ if (unlikely(err)) {
+ esp_dbg(ESP_DBG_ERROR, " %s first read err %d %d\n", __func__, err, sif_get_regs(epub)->config_w0);
+ kfree_skb(first_skb);
+ sif_unlock_bus(epub);
+ goto _err;
+ }
+
+ shdr = (struct sip_hdr *)rx_buf;
+ if(SIP_HDR_IS_CTRL(shdr) && (shdr->c_evtid == SIP_EVT_SLEEP)) {
+ atomic_set(&sip->epub->ps.state, ESP_PM_ON);
+ esp_dbg(ESP_DBG_TRACE, "s\n");
+ }
+
+ ASSERT((shdr->len & 3) == 0);
+ //ASSERT(shdr->len >= SIP_HDR_LEN && shdr->len <= SIP_PKT_MAX_LEN);
+ if (shdr->len > first_sz) {
+ /* larger than one blk, fetch the rest */
+ next_skb = __dev_alloc_skb(roundup(shdr->len, rx_blksz) + first_sz, GFP_KERNEL);
+ if (unlikely(next_skb == NULL)) {
+ sif_unlock_bus(epub);
+ esp_sip_dbg(ESP_DBG_ERROR, "%s next no memory \n", __func__);
+ kfree_skb(first_skb);
+ goto _err;
+ }
+ rx_buf = skb_put(next_skb, shdr->len);
+ rx_buf += first_sz; /* skip the first block */
+
+ err = esp_common_read(epub, rx_buf, (shdr->len - first_sz), ESP_SIF_NOSYNC, false);
+ sif_unlock_bus(epub);
+
+ if (unlikely(err)) {
+ esp_sip_dbg(ESP_DBG_ERROR, "%s next read err %d \n", __func__, err);
+ kfree(first_skb);
+ kfree(next_skb);
+ goto _err;
+ }
+ /* merge two skbs, TBD: could be optimized by skb_linearize*/
+ memcpy(next_skb->data, first_skb->data, first_sz);
+ esp_dbg(ESP_DBG_TRACE, " %s next skb\n", __func__);
+
+ rx_skb = next_skb;
+ kfree_skb(first_skb);
+ } else {
+ sif_unlock_bus(epub);
+ skb_trim(first_skb, shdr->len);
+ esp_dbg(ESP_DBG_TRACE, " %s first_skb only\n", __func__);
+
+ rx_skb = first_skb;
+ }
+ if (atomic_read(&sip->state) == SIP_STOP) {
+ kfree_skb(rx_skb);
+ esp_sip_dbg(ESP_DBG_ERROR, "%s when sip stopped\n", __func__);
+ return 0;
+ }
+#ifndef RX_SYNC
+ sip_rx_pkt_enqueue(sip, rx_skb);
+ queue_work(sip->epub->esp_wkq, &sip->rx_process_work);
+#else
+ sip_rx_pkt_process_sync(sip, rx_skb);
+#endif /* RX_SYNC */
+
+_err:
+
+ return err;
+}
+
+#else
+
+int sip_rx(struct esp_pub *epub)
+{
+ struct sip_hdr *shdr = NULL;
+ struct esp_sip *sip = epub->sip;
+ int err = 0;
+ struct sk_buff *rx_skb = NULL;
+ u8 *rx_buf = NULL;
+ u32 lookahead = 0;
+ struct slc_host_regs *regs = sif_get_regs(epub);
+ bool free_skb = false;
+
+ esp_sip_dbg(ESP_DBG_LOG, "%s enter\n", __func__);
+
+ lookahead = regs->config_w0;
+
+ esp_sip_dbg(ESP_DBG_TRACE, "%s lookahead %u \n", __func__, lookahead);
+ rx_skb = __dev_alloc_skb(lookahead, GFP_KERNEL);
+ if (rx_skb == NULL) {
+ esp_sip_dbg(ESP_DBG_ERROR, "%s no memory \n", __func__);
+ goto __out;
+ }
+ rx_buf = skb_put(rx_skb, lookahead);
+ err = sif_lldesc_read_raw(epub, rx_buf, lookahead);
+ if (unlikely(err)) {
+ esp_dbg(ESP_DBG_ERROR, " %s read err %d \n", __func__, err);
+ goto __out;
+ }
+
+ shdr = (struct sip_hdr *)rx_buf;
+ esp_sip_dbg(ESP_DBG_TRACE, "%s len %d totlen %d\n", __func__, shdr->len, (shdr->h_credits >> 12));
+ show_buf(rx_buf, 32);
+ //ASSERT(shdr->len >= SIP_HDR_LEN && shdr->len <= SIP_PKT_MAX_LEN);
+
+ esp_sip_dbg(ESP_DBG_TRACE, "%s credits %d\n", __func__, shdr->h_credits);
+ if (shdr->h_credits & SIP_CREDITS_MASK) {
+ sip_update_tx_credits(sip, shdr->h_credits & SIP_CREDITS_MASK);
+ }
+#if 0
+ if (SIP_HDR_IS_CREDIT_RPT(shdr)) {
+ esp_sip_dbg(ESP_DBG_TRACE, "%s credit update %d\n", __func__, shdr->h_credits & SIP_CREDITS_MASK);
+ if (unlikely(shdr->seq != sip->rxseq++)) {
+ esp_sip_dbg(ESP_DBG_ERROR, "%s seq mismatch! got %u, expect %u\n", __func__, shdr->seq, sip->rxseq-1);
+ }
+
+ free_skb = true;
+ goto __out;
+ }
+#endif
+ shdr->h_credits &= ~SIP_CREDITS_MASK; /* clean credits in sip_hdr, prevent over-add */
+
+ /* we need some place to store the total length of the pkt chain, the simple way is make it consistent with
+ * non-lookahead case
+ */
+ shdr->h_credits = (shdr->len << 12);
+ shdr->len = lookahead;
+
+ sip_rx_pkt_enqueue(sip, rx_skb);
+ queue_work(sip->epub->esp_wkq, &sip->rx_process_work);
+
+__out:
+ if (free_skb)
+ kfree_skb(rx_skb);
+
+ sip_trigger_txq_process(sip);
+
+ return err;
+}
+#endif /* LOOKAHEAD */
+
+int sip_get_raw_credits(struct esp_sip *sip)
+{
+#if 1
+ unsigned long timeout;
+ int err = 0;
+
+ esp_dbg(ESP_DBG_TRACE, "%s entern \n", __func__);
+
+ /* 1s timeout */
+ timeout = jiffies + msecs_to_jiffies(1000);
+
+ while (time_before(jiffies, timeout) && !sip->boot_credits) {
+
+ err = esp_common_read_with_addr(sip->epub, SLC_HOST_TOKEN_RDATA, (u8 *)&sip->boot_credits, 4, ESP_SIF_SYNC);
+
+ if (err) {
+ esp_dbg(ESP_DBG_ERROR, "Can't read credits\n");
+ return err;
+ }
+ sip->boot_credits &= SLC_HOST_TOKEN0_MASK;
+#ifdef SIP_DEBUG
+ if (sip->boot_credits == 0) {
+ esp_dbg(ESP_DBG_ERROR, "no credit, try again\n");
+ mdelay(50);
+ }
+#endif /* SIP_DEBUG */
+ }
+
+ if (!sip->boot_credits) {
+ esp_dbg(ESP_DBG_ERROR, "read credits timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ esp_dbg(ESP_DBG_TRACE, "%s got credits: %d\n", __func__, sip->boot_credits);
+#endif //0000
+
+ return 0;
+}
+
+
+/* Only cooperate with get_raw_credits */
+static void
+sip_dec_credit(struct esp_sip *sip)
+{
+#if 0
+ u32 reg = 0;
+ int err = 0;
+
+ reg = SLC_HOST_TOKEN0_WR | SLC_HOST_TOKEN0_DEC;
+ memcpy(sip->rawbuf, &reg, sizeof(u32));
+ err = sif_io_sync(sip->epub, SLC_HOST_INT_CLR, sip->rawbuf, sizeof(u32), SIF_TO_DEVICE | SIF_SYNC | SIF_BYTE_BASIS | SIF_INC_ADDR);
+
+ if (err)
+ esp_dbg(ESP_DBG_ERROR, "%s can't clear target token0 \n", __func__);
+
+#endif //0000
+ /* SLC 2.0, token reg is read-to-clean, thus no need to access target */
+ sip->boot_credits--;
+}
+
+int sip_post_init(struct esp_sip *sip, struct sip_evt_bootup2 *bevt)
+{
+ struct esp_pub *epub;
+ int po = 0;
+
+ ASSERT(sip != NULL);
+
+ epub = sip->epub;
+
+ po = get_order(SIP_TX_AGGR_BUF_SIZE);
+ sip->tx_aggr_buf = (u8 *)__get_free_pages(GFP_ATOMIC, po);
+ if (sip->tx_aggr_buf == NULL) {
+ esp_dbg(ESP_DBG_ERROR, "no mem for tx_aggr_buf! \n");
+ return -ENOMEM;
+ }
+#if 0
+ po = get_order(SIP_RX_AGGR_BUF_SIZE);
+ sip->rx_aggr_buf = (u8 *)__get_free_pages(GFP_ATOMIC, po);
+
+ if (sip->rx_aggr_buf == NULL) {
+ po = get_order(SIP_TX_AGGR_BUF_SIZE);
+ free_pages((unsigned long)sip->tx_aggr_buf, po);
+ esp_dbg(ESP_DBG_ERROR, "no mem for rx_aggr_buf! \n");
+ return -ENOMEM;
+ }
+#endif
+
+ sip->tx_aggr_write_ptr = sip->tx_aggr_buf;
+
+ sip->tx_blksz = bevt->tx_blksz;
+ sip->rx_blksz = bevt->rx_blksz;
+ sip->credit_to_reserve = bevt->credit_to_reserve;
+
+ sip->dump_rpbm_err = (bevt->options & SIP_DUMP_RPBM_ERR);
+ sip->rxabort_fixed = (bevt->options & SIP_RXABORT_FIXED);
+ sip->support_bgscan = (bevt->options & SIP_SUPPORT_BGSCAN);
+
+ sip->sendup_rpbm_pkt = sip->dump_rpbm_err && false;
+
+ /* print out MAC addr... */
+ memcpy(epub->mac_addr, bevt->mac_addr, ETH_ALEN);
+ atomic_set(&sip->noise_floor, bevt->noise_floor);
+
+ esp_sip_dbg(ESP_DBG_TRACE, "%s tx_blksz %d rx_blksz %d mac addr %pM\n", __func__, sip->tx_blksz, sip->rx_blksz, epub->mac_addr);
+
+ return 0;
+}
+
+/* write pkts in aggr buf to target memory */
+static void sip_write_pkts(struct esp_sip *sip, int pm_state)
+{
+ int tx_aggr_len = 0;
+ struct sip_hdr *first_shdr = NULL;
+ int err = 0;
+
+ tx_aggr_len = sip->tx_aggr_write_ptr - sip->tx_aggr_buf;
+ if (tx_aggr_len < sizeof(struct sip_hdr)) {
+ printk("%s tx_aggr_len %d \n", __func__, tx_aggr_len);
+ ASSERT(0);
+ }
+ //ASSERT(tx_aggr_len >= sizeof(struct sip_hdr));
+ ASSERT((tx_aggr_len & 0x3) == 0);
+
+ first_shdr = (struct sip_hdr *)sip->tx_aggr_buf;
+
+ if (atomic_read(&sip->tx_credits) <= SIP_CREDITS_LOW_THRESHOLD) {
+ first_shdr->fc[1] |= SIP_HDR_F_NEED_CRDT_RPT;
+ }
+
+ ASSERT(tx_aggr_len == sip->tx_tot_len);
+
+ /* still use lock bus instead of sif_lldesc_write_sync since we want to protect several global varibles assignments */
+ sif_lock_bus(sip->epub);
+
+ /* add a dummy read in power saving mode, although target may not really in
+ * sleep
+ */
+ //if (atomic_read(&sip->epub->ps.state) == ESP_PM_ON) {
+ // atomic_set(&sip->epub->ps.state, ESP_PM_OFF);
+ sif_raw_dummy_read(sip->epub);
+ //}
+ //esp_dbg(ESP_DBG_ERROR, "%s write len %u\n", __func__, tx_aggr_len);
+
+ err = esp_common_write(sip->epub, sip->tx_aggr_buf, tx_aggr_len, ESP_SIF_NOSYNC);
+
+ sip->tx_aggr_write_ptr = sip->tx_aggr_buf;
+ sip->tx_tot_len = 0;
+
+#if 0
+ if (pm_state == ESP_PM_TURNING_ON) {
+ ASSERT(atomic_read(&sip->epub->ps.state) == ESP_PM_TURNING_ON);
+ atomic_set(&sip->epub->ps.state, ESP_PM_ON);
+ } else if (pm_state == ESP_PM_TURNING_OFF) {
+ ASSERT(atomic_read(&sip->epub->ps.state) == ESP_PM_TURNING_OFF);
+ atomic_set(&sip->epub->ps.state, ESP_PM_OFF);
+ esp_dbg(ESP_DBG_PS, "----beacon %d, probe rsp %d -------\n", bcn_counter, probe_rsp_counter);
+ bcn_counter = 0; probe_rsp_counter = 0;
+ } else if (pm_state && atomic_read(&sip->epub->ps.state)) {
+ esp_dbg(ESP_DBG_ERROR, "%s wrong pm_state %d ps.state %d \n", __func__, pm_state, atomic_read(&sip->epub->ps.state));
+ }
+#endif
+ sif_unlock_bus(sip->epub);
+
+ if (err)
+ esp_sip_dbg(ESP_DBG_ERROR, "func %s err!!!!!!!!!: %d\n", __func__, err);
+
+}
+
+/* setup sip header and tx info, copy pkt into aggr buf */
+static int sip_pack_pkt(struct esp_sip *sip, struct sk_buff *skb, int *pm_state)
+{
+ struct ieee80211_tx_info *itx_info;
+ struct sip_hdr *shdr;
+ u32 tx_len = 0, offset = 0;
+ bool is_data = true;
+
+ itx_info = IEEE80211_SKB_CB(skb);
+
+ if (itx_info->flags == 0xffffffff) {
+ shdr = (struct sip_hdr *)skb->data;
+ is_data = false;
+ tx_len = skb->len;
+ } else {
+ struct ieee80211_hdr * wh = (struct ieee80211_hdr *)skb->data;
+ struct esp_vif *evif = (struct esp_vif *)itx_info->control.vif->drv_priv;
+ u8 sta_index;
+ struct esp_node *node;
+ /* update sip header */
+ shdr = (struct sip_hdr *)sip->tx_aggr_write_ptr;
+
+ shdr->fc[0] = 0;
+ shdr->fc[1] = 0;
+
+ if ((itx_info->flags & IEEE80211_TX_CTL_AMPDU) && (true || esp_is_ip_pkt(skb)))
+ SIP_HDR_SET_TYPE(shdr->fc[0], SIP_DATA_AMPDU);
+ else
+ SIP_HDR_SET_TYPE(shdr->fc[0], SIP_DATA);
+
+ if(evif->epub == NULL){
+#ifndef FAST_TX_STATUS
+ /* TBD */
+#else
+ sip_tx_status_report(sip, skb, itx_info, false);
+ atomic_dec(&sip->tx_data_pkt_queued);
+ return -EINVAL;
+#endif /* FAST_TX_STATUS */
+ }
+
+ /* make room for encrypted pkt */
+ if (itx_info->control.hw_key) {
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39))
+ shdr->d_enc_flag= itx_info->control.hw_key->alg+1;
+#else
+ int alg = esp_cipher2alg(itx_info->control.hw_key->cipher);
+ if (unlikely(alg == -1)) {
+#ifndef FAST_TX_STATUS
+ /* TBD */
+#else
+ sip_tx_status_report(sip, skb, itx_info, false);
+ atomic_dec(&sip->tx_data_pkt_queued);
+ return -1;
+#endif /* FAST_TX_STATUS */
+ } else {
+ shdr->d_enc_flag = alg + 1;
+ }
+
+#endif /* NEW_KERNEL */
+ shdr->d_hw_kid = itx_info->control.hw_key->hw_key_idx | (evif->index<<7);
+ } else {
+ shdr->d_enc_flag=0;
+ shdr->d_hw_kid = (evif->index << 7 | evif->index);
+ }
+
+ /* update sip tx info */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28))
+ if(itx_info->control.sta == NULL){
+ node = NULL;
+ } else {
+ node = esp_get_node_by_addr(sip->epub, itx_info->control.sta->addr);
+ }
+#else
+
+ node = esp_get_node_by_addr(sip->epub, wh->addr1);
+#endif
+ if(node != NULL)
+ sta_index = node->index;
+ else
+ sta_index = ESP_PUB_MAX_STA + 1;
+ SIP_HDR_SET_IFIDX(shdr->fc[0], evif->index << 3 | sta_index);
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37))
+ shdr->d_p2p = itx_info->control.vif->p2p;
+ if(evif->index == 1)
+ shdr->d_p2p = 1;
+#endif
+ shdr->d_ac = skb_get_queue_mapping(skb);
+ shdr->d_tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+ wh = (struct ieee80211_hdr *)skb->data;
+ if (ieee80211_is_mgmt(wh->frame_control)) {
+ /* addba/delba/bar may use different tid/ac */
+ if (ieee80211_is_beacon(wh->frame_control)||shdr->d_ac == WME_AC_VO) {
+ shdr->d_tid = 7;
+ }
+ }
+//#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
+ if (check_ac_tid(skb->data, shdr->d_ac, shdr->d_tid)) {
+ shdr->d_ac = WME_AC_BE;
+ shdr->d_tid = 0;
+ }
+//#endif /* NEW_KERNEL || KERNEL_35 */
+
+
+ /* make sure data is start at 4 bytes aligned addr. */
+ offset = roundup(sizeof(struct sip_hdr), 4);
+
+#ifdef HOST_RC
+ esp_sip_dbg(ESP_DBG_TRACE, "%s offset0 %d \n", __func__, offset);
+ memcpy(sip->tx_aggr_write_ptr + offset, (void *)&itx_info->control,
+ sizeof(struct sip_tx_rc));
+
+ offset += roundup(sizeof(struct sip_tx_rc), 4);
+ esp_show_tx_rates(&itx_info->control.rates[0]);
+
+#endif /* HOST_RC */
+
+ if (SIP_HDR_IS_AMPDU(shdr)) {
+ memset(sip->tx_aggr_write_ptr + offset, 0, sizeof(struct esp_tx_ampdu_entry));
+ offset += roundup(sizeof(struct esp_tx_ampdu_entry), 4);
+ }
+
+ tx_len = offset + skb->len;
+ shdr->len = tx_len; /* actual len */
+
+ esp_sip_dbg(ESP_DBG_TRACE, "%s offset %d skblen %d txlen %d\n", __func__, offset, skb->len, tx_len);
+
+ }
+
+ shdr->seq = sip->txseq++;
+ //esp_sip_dbg(ESP_DBG_ERROR, "%s seq %u, %u %u\n", __func__, shdr->seq, SIP_HDR_GET_TYPE(shdr->fc[0]),shdr->c_cmdid);
+
+ /* copy skb to aggr buf */
+ memcpy(sip->tx_aggr_write_ptr + offset, skb->data, skb->len);
+
+ if (is_data) {
+ spin_lock_bh(&sip->epub->tx_lock);
+ sip->txdataseq = shdr->seq;
+ spin_unlock_bh(&sip->epub->tx_lock);
+#ifndef FAST_TX_STATUS
+ /* store seq in driver data, need seq to pick pkt during tx status report */
+ *(u32 *)itx_info->driver_data = shdr->seq;
+ atomic_inc(&sip->pending_tx_status);
+#else
+ /* fake a tx_status and report to mac80211 stack to speed up tx, may affect
+ * 1) rate control (now it's all in target, so should be OK)
+ * 2) ps mode, mac80211 want to check ACK of ps/nulldata to see if AP is awake
+ * 3) BAR, mac80211 do BAR by checking ACK
+ */
+ /*
+ * XXX: need to adjust for 11n, e.g. report tx_status according to BA received in target
+ *
+ */
+ sip_tx_status_report(sip, skb, itx_info, true);
+ atomic_dec(&sip->tx_data_pkt_queued);
+
+#endif /* FAST_TX_STATUS */
+ STRACE_TX_DATA_INC();
+ } else {
+ /* check pm state here */
+#if 0
+ if (*pm_state == 0) {
+ if (SIP_HDR_IS_PM_TURNING_ON(shdr))
+ *pm_state = ESP_PM_TURNING_ON;
+ else if (SIP_HDR_IS_PM_TURNING_OFF(shdr))
+ *pm_state = ESP_PM_TURNING_OFF;
+ } else {
+ if (SIP_HDR_IS_PM_TURNING_ON(shdr) || SIP_HDR_IS_PM_TURNING_OFF(shdr)) {
+ esp_dbg(ESP_DBG_ERROR, "%s two pm states in one bunch - prev: %d; curr %d\n", __func__,
+ *pm_state, SIP_HDR_IS_PM_TURNING_ON(shdr)?ESP_PM_TURNING_ON:ESP_PM_TURNING_OFF);
+ if (*pm_state == ESP_PM_TURNING_ON && SIP_HDR_IS_PM_TURNING_OFF(shdr)) {
+ *pm_state = 0;
+ atomic_set(&sip->epub->ps.state, ESP_PM_OFF);
+ } else if (*pm_state == ESP_PM_TURNING_OFF && SIP_HDR_IS_PM_TURNING_ON(shdr)) {
+ *pm_state = 0;
+ atomic_set(&sip->epub->ps.state, ESP_PM_ON);
+ } else {
+ ASSERT(0);
+ }
+ }
+ }
+#endif
+ /* no need to hold ctrl skb */
+ sip_free_ctrl_skbuff(sip, skb);
+ STRACE_TX_CMD_INC();
+ }
+
+ /* TBD: roundup here or whole aggr-buf */
+ tx_len = roundup(tx_len, sip->tx_blksz);
+
+ sip->tx_aggr_write_ptr += tx_len;
+ sip->tx_tot_len += tx_len;
+
+ return 0;
+}
+
+#ifndef FAST_TX_STATUS
+static void
+sip_after_tx_status_update(struct esp_sip *sip)
+{
+ if (atomic_read(&sip->data_tx_stopped) == true && sip_tx_data_may_resume(sip)) {
+ atomic_set(&sip->data_tx_stopped, false);
+ if (sip_is_tx_mblk_avail(sip) == false) {
+ esp_sip_dbg(ESP_DBG_ERROR, "%s mblk still unavail \n", __func__);
+ } else {
+ esp_sip_dbg(ESP_DBG_TRACE, "%s trigger txq \n", __func__);
+ sip_trigger_txq_process(sip);
+ }
+ } else if (!sip_tx_data_may_resume(sip)) { //JLU: this is redundant
+ STRACE_SHOW(sip);
+ }
+}
+#endif /* !FAST_TX_STATUS */
+
+#ifdef HOST_RC
+static void sip_set_tx_rate_status(struct sip_rc_status *rcstatus, struct ieee80211_tx_rate *irates)
+{
+ int i;
+ u8 shift = 0;
+ u32 cnt = 0;
+
+ for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+ if (rcstatus->rc_map & BIT(i)) {
+ shift = i << 2;
+ cnt = (rcstatus->rc_cnt_store >> shift) & RC_CNT_MASK;
+ irates[i].idx = i;
+ irates[i].count = (u8)cnt;
+ } else {
+ irates[i].idx = -1;
+ irates[i].count = 0;
+ }
+ }
+
+ esp_show_rcstatus(rcstatus);
+ esp_show_tx_rates(irates);
+}
+#endif /* HOST_RC */
+
+#ifndef FAST_TX_STATUS
+static void
+sip_txdoneq_process(struct esp_sip *sip, struct sip_evt_tx_report *tx_report)
+{
+ struct sk_buff *skb, *tmp;
+ struct esp_pub *epub = sip->epub;
+ int matchs = 0;
+ struct ieee80211_tx_info *tx_info;
+ struct sip_tx_status *tx_status;
+ int i;
+
+ esp_sip_dbg(ESP_DBG_LOG, "%s enter, report->pkts %d, pending tx_status %d\n", __func__, tx_report->pkts, atomic_read(&sip->pending_tx_status));
+
+ /* traversal the txdone queue, find out matched skb by seq, hand over
+ * to up layer stack
+ */
+ for (i = 0; i < tx_report->pkts; i++) {
+ //esp_sip_dbg(ESP_DBG_TRACE, "%s status %d seq %u\n", __func__, i, tx_report->status[i].sip_seq);
+ skb_queue_walk_safe(&epub->txdoneq, skb, tmp) {
+ tx_info = IEEE80211_SKB_CB(skb);
+
+ //esp_sip_dbg(ESP_DBG_TRACE, "%s skb seq %u\n", __func__, *(u32 *)tx_info->driver_data);
+ if (tx_report->status[i].sip_seq == *(u32 *)tx_info->driver_data) {
+ tx_status = &tx_report->status[i];
+ __skb_unlink(skb, &epub->txdoneq);
+
+ //fill up ieee80211_tx_info
+ //TBD: lock ??
+ if (tx_status->errno == SIP_TX_ST_OK &&
+ !(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) {
+ tx_info->flags |= IEEE80211_TX_STAT_ACK;
+ }
+#ifdef HOST_RC
+ sip_set_tx_rate_status(&tx_report->status[i].rcstatus, &tx_info->status.rates[0]);
+ esp_sip_dbg(ESP_DBG_TRACE, "%s idx0 %d, cnt0 %d, flags0 0x%02x\n", __func__, tx_info->status.rates[0].idx,tx_info->status.rates[0].count, tx_info->status.rates[0].flags);
+
+#else
+ /* manipulate rate status... */
+ tx_info->status.rates[0].idx = 0;
+ tx_info->status.rates[0].count = 1;
+ tx_info->status.rates[0].flags = 0;
+ tx_info->status.rates[1].idx = -1;
+#endif /* HOST_RC */
+
+ ieee80211_tx_status(epub->hw, skb);
+ matchs++;
+ atomic_dec(&sip->pending_tx_status);
+ STRACE_RX_TXSTATUS_INC();
+ }
+ }
+ }
+
+ if (matchs < tx_report->pkts) {
+ esp_sip_dbg(ESP_DBG_ERROR, "%s tx report mismatch! \n", __func__);
+ } else {
+ //esp_sip_dbg(ESP_DBG_TRACE, "%s tx report %d pkts! \n", __func__, matchs);
+ }
+
+ sip_after_tx_status_update(sip);
+}
+#else
+#ifndef FAST_TX_NOWAIT
+
+static void
+sip_txdoneq_process(struct esp_sip *sip)
+{
+ struct esp_pub *epub = sip->epub;
+ struct sk_buff *skb;
+ while ((skb = skb_dequeue(&epub->txdoneq))) {
+ ieee80211_tx_status(epub->hw, skb);
+ }
+}
+#endif
+#endif /* !FAST_TX_STATUS */
+
+#ifdef FAST_TX_STATUS
+static void sip_tx_status_report(struct esp_sip *sip, struct sk_buff *skb, struct ieee80211_tx_info *tx_info, bool success)
+{
+ if(!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
+ if (likely(success))
+ tx_info->flags |= IEEE80211_TX_STAT_ACK;
+ else
+ tx_info->flags &= ~IEEE80211_TX_STAT_ACK;
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29))
+ /* manipulate rate status... */
+ tx_info->status.rates[0].idx = 11;
+ tx_info->status.rates[0].count = 1;
+ tx_info->status.rates[0].flags = 0;
+ tx_info->status.rates[1].idx = -1;
+#else
+ tx_info->status.retry_count = 1;
+ tx_info->status.excessive_retries = false;
+#endif
+
+ } else {
+ tx_info->flags |= IEEE80211_TX_STAT_AMPDU | IEEE80211_TX_STAT_ACK;
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39))
+ tx_info->status.ampdu_ack_map = 1;
+#else
+ tx_info->status.ampdu_len = 1;
+#endif
+ tx_info->status.ampdu_ack_len = 1;
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29))
+ /* manipulate rate status... */
+ tx_info->status.rates[0].idx = 7;
+ tx_info->status.rates[0].count = 1;
+ tx_info->status.rates[0].flags = IEEE80211_TX_RC_MCS | IEEE80211_TX_RC_SHORT_GI;
+ tx_info->status.rates[1].idx = -1;
+#else
+ tx_info->status.retry_count = 1;
+ tx_info->status.excessive_retries = false;
+#endif
+
+ }
+
+ if(tx_info->flags & IEEE80211_TX_STAT_AMPDU)
+ esp_sip_dbg(ESP_DBG_TRACE, "%s ampdu status! \n", __func__);
+
+ if (!mod_support_no_txampdu() &&
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29))
+ sip->epub->hw->conf.channel_type != NL80211_CHAN_NO_HT
+#else
+ !(sip->epub->hw->conf.flags&IEEE80211_CONF_SUPPORT_HT_MODE)
+#endif
+ ) {
+ struct ieee80211_tx_info * tx_info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_hdr * wh = (struct ieee80211_hdr *)skb->data;
+ if(ieee80211_is_data_qos(wh->frame_control)) {
+ if(!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
+ u8 tidno = ieee80211_get_qos_ctl(wh)[0] & IEEE80211_QOS_CTL_TID_MASK;
+ struct esp_node * node;
+ struct esp_tx_tid *tid;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28))
+ struct ieee80211_sta *sta;
+ sta = tx_info->control.sta;
+ if(sta == NULL)
+ goto _exit;
+ node = (struct esp_node *)sta->drv_priv;
+ ASSERT(node != NULL);
+ if(node->sta == NULL)
+ goto _exit;
+#else
+ node = esp_get_node_by_addr(sip->epub, wh->addr1);
+ if(node == NULL)
+ goto _exit;
+#endif
+ tid = &node->tid[tidno];
+ spin_lock_bh(&sip->epub->tx_ampdu_lock);
+ //start session
+ ASSERT(tid != NULL);
+ if ((tid->state == ESP_TID_STATE_INIT) &&
+ (TID_TO_AC(tidno) != WME_AC_VO) && tid->cnt >= 10) {
+ tid->state = ESP_TID_STATE_TRIGGER;
+ esp_sip_dbg(ESP_DBG_ERROR, "start tx ba session,addr:%pM,tid:%u\n", wh->addr1, tidno);
+ spin_unlock_bh(&sip->epub->tx_ampdu_lock);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 28))
+ ieee80211_start_tx_ba_session(sip->epub->hw, wh->addr1, tidno);
+#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 32))
+ ieee80211_start_tx_ba_session(sip->epub->hw, sta->addr, tidno);
+#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 37))
+ ieee80211_start_tx_ba_session(sta, tidno);
+#else
+ ieee80211_start_tx_ba_session(sta, tidno, 0);
+#endif
+ } else {
+ if(tid->state == ESP_TID_STATE_INIT)
+ tid->cnt++;
+ else
+ tid->cnt = 0;
+ spin_unlock_bh(&sip->epub->tx_ampdu_lock);
+ }
+ }
+ }
+ }
+_exit:
+#ifndef FAST_TX_NOWAIT
+ skb_queue_tail(&sip->epub->txdoneq, skb);
+#else
+ ieee80211_tx_status(sip->epub->hw, skb);
+#endif
+}
+#endif /* FAST_TX_STATUS */
+
+/*
+ * NB: this routine should be locked when calling
+ */
+void
+sip_txq_process(struct esp_pub *epub)
+{
+ struct sk_buff *skb;
+ struct esp_sip *sip = epub->sip;
+ u32 pkt_len = 0, tx_len = 0, blknum = 0;
+ bool queued_back = false;
+ bool out_of_credits = false;
+ struct ieee80211_tx_info *itx_info;
+ int pm_state = 0;
+
+ while ((skb = skb_dequeue(&epub->txq))) {
+
+ /* cmd skb->len does not include sip_hdr too */
+ pkt_len = skb->len;
+ itx_info = IEEE80211_SKB_CB(skb);
+ if (itx_info->flags != 0xffffffff) {
+ pkt_len += roundup(sizeof(struct sip_hdr), 4);
+ if ((itx_info->flags & IEEE80211_TX_CTL_AMPDU) && (true || esp_is_ip_pkt(skb)))
+ pkt_len += roundup(sizeof(struct esp_tx_ampdu_entry), 4);
+ }
+
+ /* current design simply requires every sip_hdr must be at the begin of mblk, that definitely
+ * need to be optimized, e.g. calulate remain length in the previous mblk, if it larger than
+ * certain threshold (e.g, whole pkt or > 50% of pkt or 2 x sizeof(struct sip_hdr), append pkt
+ * to the previous mblk. This might be done in sip_pack_pkt()
+ */
+ pkt_len = roundup(pkt_len, sip->tx_blksz);
+ blknum = pkt_len / sip->tx_blksz;
+ esp_dbg(ESP_DBG_TRACE, "%s skb_len %d pkt_len %d blknum %d\n", __func__, skb->len, pkt_len, blknum);
+
+ if (unlikely(blknum > atomic_read(&sip->tx_credits) - sip->credit_to_reserve)) {
+ esp_dbg(ESP_DBG_TRACE, "%s out of credits!\n", __func__);
+ STRACE_TX_OUT_OF_CREDIT_INC();
+ queued_back = true;
+ out_of_credits = true;
+ /*
+ if (epub->hw) {
+ ieee80211_stop_queues(epub->hw);
+ atomic_set(&epub->txq_stopped, true);
+ }
+ */
+ /* we will be back */
+ break;
+ }
+
+ tx_len += pkt_len;
+ if (tx_len >= SIP_TX_AGGR_BUF_SIZE) {
+ /* do we need to have limitation likemax 8 pkts in a row? */
+ esp_dbg(ESP_DBG_TRACE, "%s too much pkts in one shot!\n", __func__);
+ STRACE_TX_ONE_SHOT_INC();
+ tx_len -= pkt_len;
+ queued_back = true;
+ break;
+ }
+
+ if (sip_pack_pkt(sip, skb, &pm_state) != 0) {
+ /* wrong pkt, won't send to target */
+ tx_len -= pkt_len;
+ continue;
+ }
+
+ esp_sip_dbg(ESP_DBG_TRACE, "%s:before sub, credits is %d\n", __func__, atomic_read(&sip->tx_credits));
+ atomic_sub(blknum, &sip->tx_credits);
+ esp_sip_dbg(ESP_DBG_TRACE, "%s:after sub %d,credits remains %d\n", __func__, blknum, atomic_read(&sip->tx_credits));
+
+ }
+
+ if (queued_back) {
+ skb_queue_head(&epub->txq, skb);
+ }
+
+ if (atomic_read(&sip->state) == SIP_STOP
+#ifdef HOST_RESET_BUG
+ || atomic_read(&epub->wl.off) == 1
+#endif
+ )
+ {
+ queued_back = 1;
+ tx_len = 0;
+ sip_after_write_pkts(sip);
+ }
+
+ if (tx_len) {
+
+ sip_write_pkts(sip, pm_state);
+
+ sip_after_write_pkts(sip);
+ }
+
+ if (queued_back && !out_of_credits) {
+
+ /* skb pending, do async process again */
+ // if (!skb_queue_empty(&epub->txq))
+ sip_trigger_txq_process(sip);
+ }
+}
+
+static void sip_after_write_pkts(struct esp_sip *sip)
+{
+ //enable txq
+#if 0
+ if (atomic_read(&sip->epub->txq_stopped) == true && sip_queue_may_resume(sip)) {
+ atomic_set(&sip->epub->txq_stopped, false);
+ ieee80211_wake_queues(sip->epub->hw);
+ esp_sip_dbg(ESP_DBG_TRACE, "%s resume ieee80211 tx \n", __func__);
+ }
+#endif
+
+#ifndef FAST_TX_NOWAIT
+ sip_txdoneq_process(sip);
+#endif
+ //disable tx_data
+#ifndef FAST_TX_STATUS
+ if (atomic_read(&sip->data_tx_stopped) == false && sip_tx_data_need_stop(sip)) {
+ esp_sip_dbg(ESP_DBG_TRACE, "%s data_tx_stopped \n", __func__);
+ atomic_set(&sip->data_tx_stopped, true);
+ }
+#endif /* FAST_TX_STATUS */
+}
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 35))
+/*
+ * old mac80211 (2.6.32.x) needs payload is 4 byte aligned, thus we need this hack.
+ * TBD: However, the latest mac80211 stack does not need this. we may
+ * need to check kernel version here...
+ */
+static void sip_check_skb_alignment(struct sk_buff *skb)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ int hdrlen;
+
+ hdrlen = ieee80211_hdrlen(hdr->frame_control);
+
+#if 0
+
+ /* TBD */
+ if (rx->flags & IEEE80211_RX_AMSDU)
+ hdrlen += ETH_HLEN;
+
+#endif
+
+ if (unlikely(((unsigned long)(skb->data + hdrlen)) & 3)) {
+
+ esp_sip_dbg(ESP_DBG_TRACE, "%s adjust skb data postion \n", __func__);
+ skb_push(skb, 2);
+ memmove(skb->data, skb->data+2, skb->len-2);
+ skb_trim(skb, skb->len-2);
+ }
+}
+#endif /* !NEW_KERNEL */
+
+int sip_channel_value_inconsistency(u8 *start, size_t len, unsigned channel)
+{
+ size_t left = len;
+ u8 *pos = start;
+ u8 *DS_Param = NULL;
+ u8 channel_parsed = 0xff;
+ bool found = false;
+ u8 ssid[33];
+
+ while(left >=2 && !found) {
+ u8 id, elen;
+ id = *pos++;
+ elen = *pos++;
+ left -= 2;
+
+ if(elen > left)
+ break;
+
+ switch (id) {
+ case WLAN_EID_SSID:
+ ASSERT(elen < 33);
+ memcpy(ssid, pos, elen);
+ ssid[elen] = 0;
+ esp_sip_dbg(ESP_DBG_TRACE, "ssid:%s\n", ssid);
+ break;
+ case WLAN_EID_SUPP_RATES:
+ break;
+ case WLAN_EID_FH_PARAMS:
+ break;
+ case WLAN_EID_DS_PARAMS:
+ DS_Param = pos;
+ found = true;
+ break;
+ default:
+ break;
+ }
+
+ left -= elen;
+ pos += elen;
+ }
+
+ if (DS_Param) {
+ channel_parsed = DS_Param[0];
+ } else {
+ esp_dbg(ESP_DBG_ERROR, "DS_Param not found\n");
+ return -1;
+ }
+
+ return channel_parsed != channel;
+}
+
+/* parse mac_rx_ctrl and return length */
+static int sip_parse_mac_rx_info(struct esp_sip *sip, struct esp_mac_rx_ctrl * mac_ctrl, struct sk_buff *skb)
+{
+ struct ieee80211_rx_status *rx_status = NULL;
+ struct ieee80211_hdr *hdr;
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
+ rx_status = IEEE80211_SKB_RXCB(skb);
+#else
+ rx_status = (struct ieee80211_rx_status *)skb->cb;
+#endif
+ rx_status->freq = esp_ieee2mhz(mac_ctrl->channel);
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+ rx_status->signal = mac_ctrl->rssi + atomic_read(&sip->noise_floor); /* snr actually, need to offset noise floor e.g. -85 */
+#else
+ rx_status->signal = mac_ctrl->rssi; /* snr actually, need to offset noise floor e.g. -85 */
+#endif /* NEW_KERNEL */
+
+ hdr = (struct ieee80211_hdr *)skb->data;
+ if (mac_ctrl->damatch0 == 1 && mac_ctrl->bssidmatch0 == 1 /*match bssid and da, but beacon package contain other bssid*/
+ && strncmp(hdr->addr2, sip->epub->wl.bssid, ETH_ALEN) == 0) { /* force match addr2 */
+ if (++signal_loop >= SIGNAL_COUNT) {
+ avg_signal += rx_status->signal;
+ avg_signal /= SIGNAL_COUNT;
+ old_signal = rx_status->signal = (avg_signal + 5);
+ signal_loop = 0;
+ avg_signal = 0;
+ } else {
+ avg_signal += rx_status->signal;
+ rx_status->signal = old_signal;
+ }
+ }
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 35))
+#define ESP_RSSI_MIN_RSSI (-90)
+#define ESP_RSSI_MAX_RSSI (-45)
+ rx_status->noise = 0; /* TBD */
+ rx_status->qual = (mac_ctrl->rssi - ESP_RSSI_MIN_RSSI)* 100/(ESP_RSSI_MAX_RSSI - ESP_RSSI_MIN_RSSI);
+ rx_status->qual = min(rx_status->qual, 100);
+ rx_status->qual = max(rx_status->qual, 0);
+#undef ESP_RSSI_MAX_RSSI
+#undef ESP_RSSI_MIN_RSSI
+#endif /* !NEW_KERNEL && KERNEL_35*/
+ rx_status->antenna = 0; /* one antenna for now */
+ rx_status->band = IEEE80211_BAND_2GHZ;
+ rx_status->flag = RX_FLAG_DECRYPTED | RX_FLAG_MMIC_STRIPPED;
+ if (mac_ctrl->sig_mode) {
+ // 2.6.27 has RX_FLAG_RADIOTAP in enum mac80211_rx_flags in include/net/mac80211.h
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29))
+ rx_status->flag |= RX_FLAG_HT;
+ rx_status->rate_idx = mac_ctrl->MCS;
+ if(mac_ctrl->SGI)
+ rx_status->flag |= RX_FLAG_SHORT_GI;
+#else
+ rx_status->rate_idx = esp_wmac_rate2idx(0xc);//ESP_RATE_54
+#endif
+ } else {
+ rx_status->rate_idx = esp_wmac_rate2idx(mac_ctrl->rate);
+ }
+ if (mac_ctrl->rxend_state == RX_FCS_ERR)
+ rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
+
+ /* Mic error frame flag */
+ if (mac_ctrl->rxend_state == RX_TKIPMIC_ERR || mac_ctrl->rxend_state == RX_CCMPMIC_ERR){
+ if(atomic_read(&sip->epub->wl.tkip_key_set) == 1){
+ rx_status->flag|= RX_FLAG_MMIC_ERROR;
+ atomic_set(&sip->epub->wl.tkip_key_set, 0);
+ printk("mic err\n");
+ } else {
+ printk("mic err discard\n");
+ }
+ }
+
+ //esp_dbg(ESP_DBG_LOG, "%s freq: %u; signal: %d; rate_idx %d; flag: %d \n", __func__, rx_status->freq, rx_status->signal, rx_status->rate_idx, rx_status->flag);
+
+ do {
+ struct ieee80211_hdr * wh = (struct ieee80211_hdr *)((u8 *)skb->data);
+
+ if (ieee80211_is_beacon(wh->frame_control) || ieee80211_is_probe_resp(wh->frame_control)) {
+ struct ieee80211_mgmt * mgmt = (struct ieee80211_mgmt *)((u8 *)skb->data);
+ u8 *start = NULL;
+ size_t baselen, len = skb->len;
+ int inconsistency = 0;
+
+ if (ieee80211_is_beacon(wh->frame_control)) {
+ start = mgmt->u.beacon.variable;
+ baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
+ bcn_counter++;
+ } else if(ieee80211_is_probe_resp(wh->frame_control)) {
+ start = mgmt->u.probe_resp.variable;
+ baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
+ probe_rsp_counter++;
+ }
+
+ if (baselen > len)
+ return -1;
+
+ inconsistency = sip_channel_value_inconsistency(start, len-baselen, mac_ctrl->channel);
+
+ if (inconsistency) {
+ return -1;
+ }
+ }
+
+#ifdef KERNEL_IV_WAR
+ /* some kernel e.g. 3.0.8 wrongly handles non-encrypted pkt like eapol */
+ if (ieee80211_is_data(wh->frame_control)) {
+ if( !ieee80211_has_protected(wh->frame_control)) {
+ esp_sip_dbg(ESP_DBG_TRACE, "%s kiv_war, add iv_stripped flag \n", __func__);
+ rx_status->flag |= RX_FLAG_IV_STRIPPED;
+ } else {
+ if ((atomic_read(&sip->epub->wl.ptk_cnt) == 0 && !(wh->addr1[0] & 0x1)) ||
+ (atomic_read(&sip->epub->wl.gtk_cnt) == 0 && (wh->addr1[0] & 0x1)))
+ {
+ esp_dbg(ESP_DBG_TRACE, "%s ==kiv_war, got bogus enc pkt==\n", __func__);
+ rx_status->flag |= RX_FLAG_IV_STRIPPED;
+ //show_buf(skb->data, 32);
+ }
+
+ esp_sip_dbg(ESP_DBG_TRACE, "%s kiv_war, got enc pkt \n", __func__);
+ }
+ }
+#endif /* KERNEL_IV_WAR*/
+ } while (0);
+
+ return 0;
+}
+
+static struct esp_mac_rx_ctrl *sip_parse_normal_mac_ctrl(struct sk_buff *skb, int * pkt_len_enc, int *buf_len, int *pulled_len)
+{
+ struct esp_mac_rx_ctrl *mac_ctrl = NULL;
+ struct sip_hdr *hdr =(struct sip_hdr *)skb->data;
+ int len_in_hdr = hdr->len;
+
+ ASSERT(skb != NULL);
+ ASSERT(skb->len > SIP_MIN_DATA_PKT_LEN);
+
+ skb_pull(skb, sizeof(struct sip_hdr));
+ *pulled_len += sizeof(struct sip_hdr);
+ mac_ctrl = (struct esp_mac_rx_ctrl *)skb->data;
+ if(!mac_ctrl->Aggregation) {
+ ASSERT(pkt_len_enc != NULL);
+ ASSERT(buf_len != NULL);
+ *pkt_len_enc = (mac_ctrl->sig_mode?mac_ctrl->HT_length:mac_ctrl->legacy_length) - FCS_LEN;
+ *buf_len = len_in_hdr - sizeof(struct sip_hdr) - sizeof(struct esp_mac_rx_ctrl);
+ }
+ skb_pull(skb, sizeof(struct esp_mac_rx_ctrl));
+ *pulled_len += sizeof(struct esp_mac_rx_ctrl);
+
+ return mac_ctrl;
+}
+
+/*
+ * for one MPDU (including subframe in AMPDU)
+ *
+ */
+static struct sk_buff * sip_parse_data_rx_info(struct esp_sip *sip, struct sk_buff *skb, int pkt_len_enc, int buf_len, struct esp_mac_rx_ctrl *mac_ctrl, int *pulled_len) {
+ /*
+ * | mac_rx_ctrl | real_data_payload | ampdu_entries |
+ */
+ //without enc
+ int pkt_len = 0;
+ struct sk_buff *rskb = NULL;
+ int ret;
+
+ if (mac_ctrl->Aggregation) {
+ struct ieee80211_hdr * wh = (struct ieee80211_hdr *)skb->data;
+ pkt_len = pkt_len_enc;
+ if (ieee80211_has_protected(wh->frame_control))//ampdu, it is CCMP enc
+ pkt_len -= 8;
+ buf_len = roundup(pkt_len, 4);
+ } else
+ pkt_len = buf_len - 3 + ((pkt_len_enc - 1) & 0x3);
+ esp_dbg(ESP_DBG_TRACE, "%s pkt_len %u, pkt_len_enc %u!, delta %d \n", __func__, pkt_len, pkt_len_enc, pkt_len_enc - pkt_len);
+ do {
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39))
+ rskb = __dev_alloc_skb(pkt_len_enc + 2, GFP_ATOMIC);
+#else
+ rskb = __dev_alloc_skb(pkt_len_enc, GFP_ATOMIC);
+#endif/* NEW_KERNEL */
+ if (unlikely(rskb == NULL)) {
+ esp_sip_dbg(ESP_DBG_ERROR, "%s no mem for rskb\n", __func__);
+ return NULL;
+ }
+ skb_put(rskb, pkt_len_enc);
+ } while(0);
+
+ do {
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39))
+ do {
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ int hdrlen;
+
+ hdrlen = ieee80211_hdrlen(hdr->frame_control);
+ if (unlikely(((unsigned long)(rskb->data + hdrlen)) & 3)) {
+ skb_put(rskb, 2);
+ skb_pull(rskb, 2);
+ }
+ } while(0);
+#endif /* < KERNEL_VERSION(2, 6, 39) */
+ memcpy(rskb->data, skb->data, pkt_len);
+ if (pkt_len_enc > pkt_len) {
+ memset(rskb->data + pkt_len, 0, pkt_len_enc - pkt_len);
+ }
+ /* strip out current pkt, move to the next one */
+ skb_pull(skb, buf_len);
+ *pulled_len += buf_len;
+ } while (0);
+
+ ret = sip_parse_mac_rx_info(sip, mac_ctrl, rskb);
+ if(ret == -1 && !mac_ctrl->Aggregation) {
+ kfree_skb(rskb);
+ return NULL;
+ }
+
+ esp_dbg(ESP_DBG_LOG, "%s after pull headers, skb->len %d rskb->len %d \n", __func__, skb->len, rskb->len);
+
+ return rskb;
+}
+
+struct esp_sip * sip_attach(struct esp_pub *epub)
+{
+ struct esp_sip *sip = NULL;
+ struct sip_pkt *pkt = NULL;
+ int i;
+
+ sip = kzalloc(sizeof(struct esp_sip), GFP_KERNEL);
+ ASSERT(sip != NULL);
+
+#ifdef ESP_RX_COPYBACK_TEST
+ /* alloc 64KB for rx test */
+ copyback_buf = kzalloc(0x10000, GFP_KERNEL);
+#endif /* ESP_RX_COPYBACK_TEST */
+
+ spin_lock_init(&sip->lock);
+
+ INIT_LIST_HEAD(&sip->free_ctrl_txbuf);
+ INIT_LIST_HEAD(&sip->free_ctrl_rxbuf);
+
+ for (i = 0; i < SIP_CTRL_BUF_N; i++) {
+ pkt = kzalloc(sizeof(struct sip_pkt), GFP_KERNEL);
+
+ if (!pkt) break;
+
+ pkt->buf_begin = kzalloc(SIP_CTRL_BUF_SZ, GFP_KERNEL);
+
+ if (pkt->buf_begin == NULL) {
+ kfree(pkt);
+ break;
+ }
+
+ pkt->buf_len = SIP_CTRL_BUF_SZ;
+ pkt->buf = pkt->buf_begin;
+
+ if (i < SIP_CTRL_TXBUF_N) {
+ list_add_tail(&pkt->list, &sip->free_ctrl_txbuf);
+ } else {
+ list_add_tail(&pkt->list, &sip->free_ctrl_rxbuf);
+ }
+ }
+
+ spin_lock_init(&sip->rx_lock);
+ skb_queue_head_init(&sip->rxq);
+#ifndef RX_SYNC
+ INIT_WORK(&sip->rx_process_work, sip_rxq_process);
+#endif/* RX_SYNC */
+
+ sip->epub = epub;
+ atomic_set(&sip->noise_floor, -96);
+
+ atomic_set(&sip->state, SIP_INIT);
+ atomic_set(&sip->tx_credits, 0);
+
+ return sip;
+}
+
+static void sip_free_init_ctrl_buf(struct esp_sip *sip)
+{
+ struct sip_pkt *pkt, *tpkt;
+
+ list_for_each_entry_safe(pkt, tpkt,
+ &sip->free_ctrl_txbuf, list) {
+ list_del(&pkt->list);
+ kfree(pkt->buf_begin);
+ kfree(pkt);
+ }
+
+ list_for_each_entry_safe(pkt, tpkt,
+ &sip->free_ctrl_rxbuf, list) {
+ list_del(&pkt->list);
+ kfree(pkt->buf_begin);
+ kfree(pkt);
+ }
+}
+
+void sip_detach(struct esp_sip *sip)
+{
+ int po;
+
+ sip_free_init_ctrl_buf(sip);
+
+ if (atomic_read(&sip->state) == SIP_RUN) {
+
+ sif_disable_target_interrupt(sip->epub);
+
+ atomic_set(&sip->state, SIP_STOP);
+
+ /* disable irq here */
+ sif_disable_irq(sip->epub);
+#ifndef RX_SYNC
+ cancel_work_sync(&sip->rx_process_work);
+#endif/* RX_SYNC */
+
+ skb_queue_purge(&sip->rxq);
+ cancel_work_sync(&sip->epub->sendup_work);
+ skb_queue_purge(&sip->epub->rxq);
+
+#ifdef ESP_NO_MAC80211
+ unregister_netdev(sip->epub->net_dev);
+ wiphy_unregister(sip->epub->wdev->wiphy);
+#else
+ if (test_and_clear_bit(ESP_WL_FLAG_HW_REGISTERED, &sip->epub->wl.flags)) {
+ ieee80211_unregister_hw(sip->epub->hw);
+ }
+#endif
+
+ /* cancel all worker/timer */
+ cancel_work_sync(&sip->epub->tx_work);
+ skb_queue_purge(&sip->epub->txq);
+ skb_queue_purge(&sip->epub->txdoneq);
+
+ po = get_order(SIP_TX_AGGR_BUF_SIZE);
+ free_pages((unsigned long)sip->tx_aggr_buf, po);
+ sip->tx_aggr_buf = NULL;
+#if 0
+ po = get_order(SIP_RX_AGGR_BUF_SIZE);
+ free_pages((unsigned long)sip->rx_aggr_buf, po);
+ sip->rx_aggr_buf = NULL;
+#endif
+ atomic_set(&sip->state, SIP_INIT);
+ } else if (atomic_read(&sip->state) >= SIP_BOOT && atomic_read(&sip->state) <= SIP_WAIT_BOOTUP) {
+
+ sif_disable_target_interrupt(sip->epub);
+ atomic_set(&sip->state, SIP_STOP);
+ sif_disable_irq(sip->epub);
+
+ if (sip->rawbuf)
+ kfree(sip->rawbuf);
+
+ if (atomic_read(&sip->state) == SIP_SEND_INIT) {
+#ifndef RX_SYNC
+ cancel_work_sync(&sip->rx_process_work);
+#endif/* RX_SYNC */
+ skb_queue_purge(&sip->rxq);
+ cancel_work_sync(&sip->epub->sendup_work);
+ skb_queue_purge(&sip->epub->rxq);
+ }
+
+#ifdef ESP_NO_MAC80211
+ unregister_netdev(sip->epub->net_dev);
+ wiphy_unregister(sip->epub->wdev->wiphy);
+#else
+ if (test_and_clear_bit(ESP_WL_FLAG_HW_REGISTERED, &sip->epub->wl.flags)) {
+ ieee80211_unregister_hw(sip->epub->hw);
+ }
+#endif
+ atomic_set(&sip->state, SIP_INIT);
+ } else
+ esp_dbg(ESP_DBG_ERROR, "%s wrong state %d\n", __func__, atomic_read(&sip->state));
+
+ kfree(sip);
+}
+
+int sip_prepare_boot(struct esp_sip *sip)
+{
+ if (atomic_read(&sip->state) != SIP_INIT) {
+ esp_dbg(ESP_DBG_ERROR, "%s wrong state %d\n", __func__, atomic_read(&sip->state));
+ return -ENOTRECOVERABLE;
+ }
+
+ if (sip->rawbuf == NULL) {
+ sip->rawbuf = kzalloc(SIP_BOOT_BUF_SIZE, GFP_KERNEL);
+
+ if (sip->rawbuf == NULL)
+ return -ENOMEM;
+ }
+
+ atomic_set(&sip->state, SIP_PREPARE_BOOT);
+
+ return 0;
+}
+
+int sip_write_memory(struct esp_sip *sip, u32 addr, u8 *buf, u16 len)
+{
+ struct sip_cmd_write_memory *cmd;
+ struct sip_hdr *chdr;
+ u16 remains, hdrs, bufsize;
+ u32 loadaddr;
+ u8 *src;
+ int err = 0;
+ u32 *t = 0;
+
+ ASSERT(sip->rawbuf != NULL);
+
+ memset(sip->rawbuf, 0, SIP_BOOT_BUF_SIZE);
+
+ chdr = (struct sip_hdr *)sip->rawbuf;
+ SIP_HDR_SET_TYPE(chdr->fc[0], SIP_CTRL);
+ chdr->c_cmdid = SIP_CMD_WRITE_MEMORY;
+
+ remains = len;
+ hdrs = sizeof(struct sip_hdr) + sizeof(struct sip_cmd_write_memory);
+
+ while (remains) {
+ src = &buf[len - remains];
+ loadaddr = addr + (len - remains);
+
+ if (remains < (SIP_BOOT_BUF_SIZE - hdrs)) {
+ /* aligned with 4 bytes */
+ bufsize = roundup(remains, 4);
+ memset(sip->rawbuf + hdrs, 0, bufsize);
+ remains = 0;
+ } else {
+ bufsize = SIP_BOOT_BUF_SIZE - hdrs;
+ remains -= bufsize;
+ }
+
+ chdr->len = bufsize + hdrs;
+ chdr->seq = sip->txseq++;
+ cmd = (struct sip_cmd_write_memory *)(sip->rawbuf + SIP_CTRL_HDR_LEN);
+ cmd->len = bufsize;
+ cmd->addr = loadaddr;
+ memcpy(sip->rawbuf+hdrs, src, bufsize);
+
+ t = (u32 *)sip->rawbuf;
+ esp_dbg(ESP_DBG_TRACE, "%s t0: 0x%08x t1: 0x%08x t2:0x%08x loadaddr 0x%08x \n", __func__, t[0], t[1], t[2], loadaddr);
+
+ err = esp_common_write(sip->epub, sip->rawbuf, chdr->len, ESP_SIF_SYNC);
+
+ if (err) {
+ esp_dbg(ESP_DBG_ERROR, "%s send buffer failed\n", __func__);
+ return err;
+ }
+
+ // 1ms is enough, in fact on dell-d430, need not delay at all.
+ mdelay(1);
+
+ sip_dec_credit(sip);
+ }
+
+ return err;
+}
+
+int sip_send_cmd(struct esp_sip *sip, int cid, u32 cmdlen, void *cmd)
+{
+ struct sip_hdr *chdr;
+ struct sip_pkt *pkt = NULL;
+ int ret = 0;
+
+ pkt = sip_get_ctrl_buf(sip, SIP_TX_CTRL_BUF);
+
+ if (pkt == NULL)
+ return -ENOMEM;
+
+ chdr = (struct sip_hdr *)pkt->buf_begin;
+ chdr->len = SIP_CTRL_HDR_LEN + cmdlen;
+ chdr->seq = sip->txseq++;
+ chdr->c_cmdid = cid;
+
+
+ if (cmd) {
+ memset(pkt->buf, 0, cmdlen);
+ memcpy(pkt->buf, (u8 *)cmd, cmdlen);
+ }
+
+ esp_dbg(ESP_DBG_TRACE, "cid %d, len %u, seq %u \n", chdr->c_cmdid, chdr->len, chdr->seq);
+
+ esp_dbg(ESP_DBG_TRACE, "c1 0x%08x c2 0x%08x\n", *(u32 *)&pkt->buf[0], *(u32 *)&pkt->buf[4]);
+
+ ret = esp_common_write(sip->epub, pkt->buf_begin, chdr->len, ESP_SIF_SYNC);
+
+ if (ret)
+ esp_dbg(ESP_DBG_ERROR, "%s send cmd %d failed \n", __func__, cid);
+
+ sip_dec_credit(sip);
+
+ sip_reclaim_ctrl_buf(sip, pkt, SIP_TX_CTRL_BUF);
+
+ /*
+ * Hack here: reset tx/rx seq before target ram code is up...
+ */
+ if (cid == SIP_CMD_BOOTUP) {
+ sip->rxseq = 0;
+ sip->txseq = 0;
+ sip->txdataseq = 0;
+ }
+
+ return ret;
+}
+
+struct sk_buff *
+sip_alloc_ctrl_skbuf(struct esp_sip *sip, u16 len, u32 cid) {
+ struct sip_hdr *si = NULL;
+ struct ieee80211_tx_info *ti = NULL;
+ struct sk_buff *skb = NULL;
+
+ ASSERT(len <= sip->tx_blksz);
+
+ /* no need to reserve space for net stack */
+ skb = __dev_alloc_skb(len, GFP_KERNEL);
+
+ if (skb == NULL) {
+ esp_dbg(ESP_DBG_ERROR, "no skb for ctrl !\n");
+ return NULL;
+ }
+
+ skb->len = len;
+
+ ti = IEEE80211_SKB_CB(skb);
+ /* set tx_info flags to 0xffffffff to indicate sip_ctrl pkt */
+ ti->flags = 0xffffffff;
+ si = (struct sip_hdr *)skb->data;
+ memset(si, 0, sizeof(struct sip_hdr));
+ SIP_HDR_SET_TYPE(si->fc[0], SIP_CTRL);
+ si->len = len;
+ si->c_cmdid = cid;
+
+ return skb;
+}
+
+void
+sip_free_ctrl_skbuff(struct esp_sip *sip, struct sk_buff *skb)
+{
+ memset(IEEE80211_SKB_CB(skb), 0, sizeof(struct ieee80211_tx_info));
+ kfree_skb(skb);
+}
+
+static struct sip_pkt *
+sip_get_ctrl_buf(struct esp_sip *sip, SIP_BUF_TYPE bftype) {
+ struct sip_pkt *pkt = NULL;
+ struct list_head *bflist;
+ struct sip_hdr *chdr;
+
+ bflist = (bftype == SIP_TX_CTRL_BUF) ? &sip->free_ctrl_txbuf :&sip->free_ctrl_rxbuf;
+
+ spin_lock_bh(&sip->lock);
+
+ if (list_empty(bflist)) {
+ spin_unlock_bh(&sip->lock);
+ return NULL;
+ }
+
+ pkt = list_first_entry(bflist, struct sip_pkt, list);
+ list_del(&pkt->list);
+ spin_unlock_bh(&sip->lock);
+
+ if (bftype == SIP_TX_CTRL_BUF) {
+ chdr = (struct sip_hdr *)pkt->buf_begin;
+ SIP_HDR_SET_TYPE(chdr->fc[0], SIP_CTRL);
+ pkt->buf = pkt->buf_begin + SIP_CTRL_HDR_LEN;
+ } else {
+ pkt->buf = pkt->buf_begin;
+ }
+
+ return pkt;
+}
+
+static void
+sip_reclaim_ctrl_buf(struct esp_sip *sip, struct sip_pkt *pkt, SIP_BUF_TYPE bftype)
+{
+ struct list_head *bflist = NULL;
+
+ if (bftype == SIP_TX_CTRL_BUF)
+ bflist = &sip->free_ctrl_txbuf;
+ else if (bftype == SIP_RX_CTRL_BUF)
+ bflist = &sip->free_ctrl_rxbuf;
+ else return;
+
+ pkt->buf = pkt->buf_begin;
+ pkt->payload_len = 0;
+
+ spin_lock_bh(&sip->lock);
+ list_add_tail(&pkt->list, bflist);
+ spin_unlock_bh(&sip->lock);
+}
+
+int
+sip_poll_bootup_event(struct esp_sip *sip)
+{
+ int ret = 0;
+
+ esp_dbg(ESP_DBG_TRACE, "polling bootup event... \n");
+
+ if (gl_bootup_cplx)
+ ret = wait_for_completion_timeout(gl_bootup_cplx, 2 * HZ);
+
+ esp_dbg(ESP_DBG_TRACE, "******time remain****** = [%d]\n", ret);
+ if (ret <= 0) {
+ esp_dbg(ESP_DBG_ERROR, "bootup event timeout\n");
+ return -ETIMEDOUT;
+ }
+
+#ifndef FPGA_LOOPBACK
+ ret = esp_register_mac80211(sip->epub);
+#endif /* !FPGA_LOOPBACK */
+
+#ifdef TEST_MODE
+ ret = test_init_netlink(sip);
+ if (ret < 0) {
+ esp_sip_dbg(ESP_DBG_TRACE, "esp_sdio: failed initializing netlink\n");
+ return ret;
+ }
+#endif
+
+ atomic_set(&sip->state, SIP_RUN);
+ esp_dbg(ESP_DBG_TRACE, "target booted up\n");
+
+ return ret;
+}
+
+int
+sip_poll_resetting_event(struct esp_sip *sip)
+{
+ int ret = 0;
+
+ esp_dbg(ESP_DBG_TRACE, "polling resetting event... \n");
+
+ if (gl_bootup_cplx)
+ ret = wait_for_completion_timeout(gl_bootup_cplx, 10 * HZ);
+
+ esp_dbg(ESP_DBG_TRACE, "******time remain****** = [%d]\n", ret);
+ if (ret <= 0) {
+ esp_dbg(ESP_DBG_ERROR, "resetting event timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ esp_dbg(ESP_DBG_TRACE, "target resetting %d %p\n", ret, gl_bootup_cplx);
+
+ return 0;
+}
+
+
+#ifdef FPGA_DEBUG
+
+/* bogus bootup cmd for FPGA debugging */
+int
+sip_send_bootup(struct esp_sip *sip)
+{
+ int ret;
+ struct sip_cmd_bootup bootcmd;
+
+ esp_dbg(ESP_DBG_LOG, "sending bootup\n");
+
+ bootcmd.boot_addr = 0;
+ ret = sip_send_cmd(sip, SIP_CMD_BOOTUP, sizeof(struct sip_cmd_bootup), &bootcmd);
+
+ return ret;
+}
+
+#endif /* FPGA_DEBUG */
+
+bool
+sip_queue_need_stop(struct esp_sip *sip)
+{
+ return atomic_read(&sip->tx_data_pkt_queued) >= SIP_STOP_QUEUE_THRESHOLD
+ || (atomic_read(&sip->tx_credits) < 8
+ && atomic_read(&sip->tx_data_pkt_queued) >= SIP_STOP_QUEUE_THRESHOLD / 4 * 3);
+}
+
+bool
+sip_queue_may_resume(struct esp_sip *sip)
+{
+ return atomic_read(&sip->epub->txq_stopped)
+ && !test_bit(ESP_WL_FLAG_STOP_TXQ, &sip->epub->wl.flags)
+ && ((atomic_read(&sip->tx_credits) >= 16
+ && atomic_read(&sip->tx_data_pkt_queued) < SIP_RESUME_QUEUE_THRESHOLD * 2)
+ || atomic_read(&sip->tx_data_pkt_queued) < SIP_RESUME_QUEUE_THRESHOLD);
+}
+
+#ifndef FAST_TX_STATUS
+bool
+sip_tx_data_need_stop(struct esp_sip *sip)
+{
+ return atomic_read(&sip->pending_tx_status) >= SIP_PENDING_STOP_TX_THRESHOLD;
+}
+
+bool
+sip_tx_data_may_resume(struct esp_sip *sip)
+{
+ return atomic_read(&sip->pending_tx_status) < SIP_PENDING_RESUME_TX_THRESHOLD;
+}
+#endif /* FAST_TX_STATUS */
+
+int
+sip_cmd_enqueue(struct esp_sip *sip, struct sk_buff *skb)
+{
+ if (!sip || !sip->epub) {
+ esp_dbg(ESP_DBG_ERROR, "func %s, sip->epub->txq is NULL\n", __func__);
+ return -EINVAL;
+ }
+
+ if (!skb) {
+ esp_dbg(ESP_DBG_ERROR, "func %s, skb is NULL\n", __func__);
+ return -EINVAL;
+ }
+
+ skb_queue_tail(&sip->epub->txq, skb);
+
+#if !defined(FPGA_LOOPBACK) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
+ ieee80211_queue_work(sip->epub->hw, &sip->epub->tx_work);
+#else
+ queue_work(sip->epub->esp_wkq, &sip->epub->tx_work);
+#endif
+ return 0;
+}
+
+void sip_tx_data_pkt_enqueue(struct esp_pub *epub, struct sk_buff *skb)
+{
+ if(!epub || !epub->sip) {
+ if (!epub)
+ esp_dbg(ESP_DBG_ERROR, "func %s, epub is NULL\n", __func__);
+ else
+ esp_dbg(ESP_DBG_ERROR, "func %s, epub->sip is NULL\n", __func__);
+
+ return;
+ }
+ if (!skb) {
+ esp_dbg(ESP_DBG_ERROR, "func %s, skb is NULL\n", __func__);
+ return;
+ }
+ skb_queue_tail(&epub->txq, skb);
+ atomic_inc(&epub->sip->tx_data_pkt_queued);
+ if(sip_queue_need_stop(epub->sip)){
+ if (epub->hw) {
+ ieee80211_stop_queues(epub->hw);
+ atomic_set(&epub->txq_stopped, true);
+ }
+
+ }
+}
+
+#ifdef FPGA_TXDATA
+int sip_send_tx_data(struct esp_sip *sip)
+{
+ struct sk_buff *skb = NULL;
+ struct sip_cmd_bss_info_update*bsscmd;
+
+ skb = sip_alloc_ctrl_skbuf(epub->sip, sizeof(struct sip_cmd_bss_info_update), SIP_CMD_BSS_INFO_UPDATE);
+ if (!skb)
+ return -EINVAL;
+
+ bsscmd = (struct sip_cmd_bss_info_update *)(skb->data + sizeof(struct sip_tx_info));
+ bsscmd->isassoc= (assoc==true)? 1: 0;
+ memcpy(bsscmd->bssid, bssid, ETH_ALEN);
+ STRACE_SHOW(epub->sip);
+ return sip_cmd_enqueue(epub->sip, skb);
+}
+#endif /* FPGA_TXDATA */
+
+#ifdef SIP_DEBUG
+void sip_dump_pending_data(struct esp_pub *epub)
+{
+#if 0
+ struct sk_buff *tskb, *tmp;
+
+ skb_queue_walk_safe(&epub->txdoneq, tskb, tmp) {
+ show_buf(tskb->data, 32);
+ }
+#endif //0000
+}
+#else
+void sip_dump_pending_data(struct esp_pub *epub)
+{}
+#endif /* SIP_DEBUG */
+
generated by cgit (git 2.34.1) at 2025-01-26 11:17:32 +0000