Return-path: Received: from mail-wi0-f171.google.com ([209.85.212.171]:43765 "EHLO mail-wi0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751014AbaJYT5f (ORCPT ); Sat, 25 Oct 2014 15:57:35 -0400 Received: by mail-wi0-f171.google.com with SMTP id em10so3535250wid.10 for ; Sat, 25 Oct 2014 12:57:34 -0700 (PDT) From: Malcolm Priestley To: gregkh@linuxfoundation.org Cc: linux-wireless@vger.kernel.org, forest@alittletooquiet.net, Malcolm Priestley Subject: [PATCH 01/31] staging: vt6655: mac80211 conversion: add new rx functions Date: Sat, 25 Oct 2014 09:20:11 +0100 Message-Id: <1414225241-5480-2-git-send-email-tvboxspy@gmail.com> (sfid-20141025_215738_686186_B6B62A4D) In-Reply-To: <1414225241-5480-1-git-send-email-tvboxspy@gmail.com> References: <1414225241-5480-1-git-send-email-tvboxspy@gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: vnt_receive_frame which replaces device_receive_frame and vnt_rx_data which handles mac80211 rx data structures ieee80211_hw, ieee80211_vif and variable rx_rate are added in structure vnt_private --- drivers/staging/vt6655/device.h | 6 +- drivers/staging/vt6655/device_main.c | 13 ++-- drivers/staging/vt6655/dpc.c | 123 +++++++++++++++++++++++++++++++++++ drivers/staging/vt6655/dpc.h | 2 + 4 files changed, 137 insertions(+), 7 deletions(-) diff --git a/drivers/staging/vt6655/device.h b/drivers/staging/vt6655/device.h index ab6be41..33b4215 100644 --- a/drivers/staging/vt6655/device.h +++ b/drivers/staging/vt6655/device.h @@ -57,6 +57,7 @@ #include #include /* Include Wireless Extension definition and check version - Jean II */ +#include #include #include // New driver API @@ -327,7 +328,9 @@ typedef struct __device_opt { struct vnt_private { struct pci_dev *pcid; - + /* mac80211 */ + struct ieee80211_hw *hw; + struct ieee80211_vif *vif; // netdev struct net_device *dev; @@ -386,6 +389,7 @@ struct vnt_private { u32 flags; u32 rx_buf_sz; + u8 rx_rate; int multicast_limit; pid_t MLMEThr_pid; diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c index c8f262f..c8ee91c 100644 --- a/drivers/staging/vt6655/device_main.c +++ b/drivers/staging/vt6655/device_main.c @@ -1336,7 +1336,7 @@ static int device_rx_srv(struct vnt_private *pDevice, unsigned int uIdx) pRD = pRD->next) { if (works++ > 15) break; - if (device_receive_frame(pDevice, pRD)) { + if (vnt_receive_frame(pDevice, pRD)) { if (!device_alloc_rx_buf(pDevice, pRD)) { dev_err(&pDevice->pcid->dev, "can not allocate rx buf\n"); @@ -1344,7 +1344,6 @@ static int device_rx_srv(struct vnt_private *pDevice, unsigned int uIdx) } } pRD->m_rd0RD0.f1Owner = OWNED_BY_NIC; - pDevice->dev->last_rx = jiffies; } pDevice->pCurrRD[uIdx] = pRD; @@ -1360,9 +1359,12 @@ static bool device_alloc_rx_buf(struct vnt_private *pDevice, PSRxDesc pRD) if (pRDInfo->skb == NULL) return false; ASSERT(pRDInfo->skb); - pRDInfo->skb->dev = pDevice->dev; - pRDInfo->skb_dma = pci_map_single(pDevice->pcid, skb_tail_pointer(pRDInfo->skb), - pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE); + + pRDInfo->skb_dma = + pci_map_single(pDevice->pcid, + skb_put(pRDInfo->skb, skb_tailroom(pRDInfo->skb)), + pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE); + *((unsigned int *)&(pRD->m_rd0RD0)) = 0; /* FIX cast */ pRD->m_rd0RD0.wResCount = cpu_to_le16(pDevice->rx_buf_sz); @@ -1380,7 +1382,6 @@ bool device_alloc_frag_buf(struct vnt_private *pDevice, if (pDeF->skb == NULL) return false; ASSERT(pDeF->skb); - pDeF->skb->dev = pDevice->dev; return true; } diff --git a/drivers/staging/vt6655/dpc.c b/drivers/staging/vt6655/dpc.c index eecf6f5..d91771f 100644 --- a/drivers/staging/vt6655/dpc.c +++ b/drivers/staging/vt6655/dpc.c @@ -1312,3 +1312,126 @@ static bool s_bAPModeRxData( return true; } + +static bool vnt_rx_data(struct vnt_private *priv, struct sk_buff *skb, + u16 bytes_received) +{ + struct ieee80211_hw *hw = priv->hw; + struct ieee80211_supported_band *sband; + struct ieee80211_rx_status rx_status = { 0 }; + struct ieee80211_hdr *hdr; + __le16 fc; + u8 *rsr, *new_rsr, *rssi; + __le64 *tsf_time; + u16 frame_size; + int ii, r; + u8 *rx_sts, *rx_rate, *sq; + u8 *skb_data; + u8 rate_idx = 0; + u8 rate[MAX_RATE] = {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108}; + long rx_dbm; + + /* [31:16]RcvByteCount ( not include 4-byte Status ) */ + frame_size = le16_to_cpu(*((__le16 *)(skb->data + 2))); + if (frame_size > 2346 || frame_size < 14) { + dev_dbg(&priv->pcid->dev, "------- WRONG Length 1\n"); + return false; + } + + skb_data = (u8 *)skb->data; + + rx_sts = skb_data; + rx_rate = skb_data + 1; + + sband = hw->wiphy->bands[hw->conf.chandef.chan->band]; + + for (r = RATE_1M; r < MAX_RATE; r++) { + if (*rx_rate == rate[r]) + break; + } + + priv->rx_rate = r; + + for (ii = 0; ii < sband->n_bitrates; ii++) { + if (sband->bitrates[ii].hw_value == r) { + rate_idx = ii; + break; + } + } + + if (ii == sband->n_bitrates) { + dev_dbg(&priv->pcid->dev, "Wrong RxRate %x\n", *rx_rate); + return false; + } + + tsf_time = (__le64 *)(skb_data + bytes_received - 12); + sq = skb_data + bytes_received - 4; + new_rsr = skb_data + bytes_received - 3; + rssi = skb_data + bytes_received - 2; + rsr = skb_data + bytes_received - 1; + + RFvRSSITodBm(priv, *rssi, &rx_dbm); + + priv->byBBPreEDRSSI = (u8)rx_dbm + 1; + priv->uCurrRSSI = priv->byBBPreEDRSSI; + + skb_pull(skb, 4); + skb_trim(skb, frame_size); + + rx_status.mactime = le64_to_cpu(*tsf_time); + rx_status.band = hw->conf.chandef.chan->band; + rx_status.signal = rx_dbm; + rx_status.flag = 0; + rx_status.freq = hw->conf.chandef.chan->center_freq; + + hdr = (struct ieee80211_hdr *)(skb->data); + fc = hdr->frame_control; + + rx_status.rate_idx = rate_idx; + + if (ieee80211_has_protected(fc)) { + if (priv->byLocalID > REV_ID_VT3253_A1) + rx_status.flag = RX_FLAG_DECRYPTED; + } + + if (priv->vif && priv->bDiversityEnable) { + if (ieee80211_is_data(fc) && + (frame_size > 50) && priv->vif->bss_conf.assoc) + BBvAntennaDiversity(priv, priv->rx_rate, 0); + } + + memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); + + ieee80211_rx_irqsafe(priv->hw, skb); + + return true; +} + +bool vnt_receive_frame(struct vnt_private *priv, PSRxDesc curr_rd) +{ + PDEVICE_RD_INFO rd_info = curr_rd->pRDInfo; + struct sk_buff *skb; + u16 frame_size; + + skb = rd_info->skb; + + pci_unmap_single(priv->pcid, rd_info->skb_dma, + priv->rx_buf_sz, PCI_DMA_FROMDEVICE); + + frame_size = le16_to_cpu(curr_rd->m_rd1RD1.wReqCount) + - cpu_to_le16(curr_rd->m_rd0RD0.wResCount); + + if ((frame_size > 2364) || (frame_size < 33)) { + /* Frame Size error drop this packet.*/ + dev_dbg(&priv->pcid->dev, "Wrong frame size %d\n", frame_size); + dev_kfree_skb_irq(skb); + return true; + } + + if (vnt_rx_data(priv, skb, frame_size)) + return true; + + dev_kfree_skb_irq(skb); + + return true; +} diff --git a/drivers/staging/vt6655/dpc.h b/drivers/staging/vt6655/dpc.h index a068b84..09cbbac 100644 --- a/drivers/staging/vt6655/dpc.h +++ b/drivers/staging/vt6655/dpc.h @@ -39,4 +39,6 @@ device_receive_frame( PSRxDesc pCurrRD ); +bool vnt_receive_frame(struct vnt_private *priv, PSRxDesc curr_rd); + #endif // __RXTX_H__ -- 1.9.1