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path: root/drivers/net/wireless/mwifiex/sta_tx.c
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Diffstat (limited to 'drivers/net/wireless/mwifiex/sta_tx.c')
-rw-r--r--drivers/net/wireless/mwifiex/sta_tx.c244
1 files changed, 0 insertions, 244 deletions
diff --git a/drivers/net/wireless/mwifiex/sta_tx.c b/drivers/net/wireless/mwifiex/sta_tx.c
deleted file mode 100644
index f6683ea6b..000000000
--- a/drivers/net/wireless/mwifiex/sta_tx.c
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- * Marvell Wireless LAN device driver: station TX data handling
- *
- * Copyright (C) 2011-2014, Marvell International Ltd.
- *
- * This software file (the "File") is distributed by Marvell International
- * Ltd. under the terms of the GNU General Public License Version 2, June 1991
- * (the "License"). You may use, redistribute and/or modify this File in
- * accordance with the terms and conditions of the License, a copy of which
- * is available by writing to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
- * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
- *
- * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
- * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
- * this warranty disclaimer.
- */
-
-#include "decl.h"
-#include "ioctl.h"
-#include "util.h"
-#include "fw.h"
-#include "main.h"
-#include "wmm.h"
-
-/*
- * This function fills the TxPD for tx packets.
- *
- * The Tx buffer received by this function should already have the
- * header space allocated for TxPD.
- *
- * This function inserts the TxPD in between interface header and actual
- * data and adjusts the buffer pointers accordingly.
- *
- * The following TxPD fields are set by this function, as required -
- * - BSS number
- * - Tx packet length and offset
- * - Priority
- * - Packet delay
- * - Priority specific Tx control
- * - Flags
- */
-void *mwifiex_process_sta_txpd(struct mwifiex_private *priv,
- struct sk_buff *skb)
-{
- struct mwifiex_adapter *adapter = priv->adapter;
- struct txpd *local_tx_pd;
- struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb);
- unsigned int pad;
- u16 pkt_type, pkt_offset;
- int hroom = (priv->adapter->iface_type == MWIFIEX_USB) ? 0 :
- INTF_HEADER_LEN;
-
- if (!skb->len) {
- mwifiex_dbg(adapter, ERROR,
- "Tx: bad packet length: %d\n", skb->len);
- tx_info->status_code = -1;
- return skb->data;
- }
-
- BUG_ON(skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN);
-
- pkt_type = mwifiex_is_skb_mgmt_frame(skb) ? PKT_TYPE_MGMT : 0;
-
- pad = ((void *)skb->data - (sizeof(*local_tx_pd) + hroom)-
- NULL) & (MWIFIEX_DMA_ALIGN_SZ - 1);
- skb_push(skb, sizeof(*local_tx_pd) + pad);
-
- local_tx_pd = (struct txpd *) skb->data;
- memset(local_tx_pd, 0, sizeof(struct txpd));
- local_tx_pd->bss_num = priv->bss_num;
- local_tx_pd->bss_type = priv->bss_type;
- local_tx_pd->tx_pkt_length = cpu_to_le16((u16)(skb->len -
- (sizeof(struct txpd) +
- pad)));
-
- local_tx_pd->priority = (u8) skb->priority;
- local_tx_pd->pkt_delay_2ms =
- mwifiex_wmm_compute_drv_pkt_delay(priv, skb);
-
- if (tx_info->flags & MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS ||
- tx_info->flags & MWIFIEX_BUF_FLAG_ACTION_TX_STATUS) {
- local_tx_pd->tx_token_id = tx_info->ack_frame_id;
- local_tx_pd->flags |= MWIFIEX_TXPD_FLAGS_REQ_TX_STATUS;
- }
-
- if (local_tx_pd->priority <
- ARRAY_SIZE(priv->wmm.user_pri_pkt_tx_ctrl))
- /*
- * Set the priority specific tx_control field, setting of 0 will
- * cause the default value to be used later in this function
- */
- local_tx_pd->tx_control =
- cpu_to_le32(priv->wmm.user_pri_pkt_tx_ctrl[local_tx_pd->
- priority]);
-
- if (adapter->pps_uapsd_mode) {
- if (mwifiex_check_last_packet_indication(priv)) {
- adapter->tx_lock_flag = true;
- local_tx_pd->flags =
- MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET;
- }
- }
-
- if (tx_info->flags & MWIFIEX_BUF_FLAG_TDLS_PKT)
- local_tx_pd->flags |= MWIFIEX_TXPD_FLAGS_TDLS_PACKET;
-
- /* Offset of actual data */
- pkt_offset = sizeof(struct txpd) + pad;
- if (pkt_type == PKT_TYPE_MGMT) {
- /* Set the packet type and add header for management frame */
- local_tx_pd->tx_pkt_type = cpu_to_le16(pkt_type);
- pkt_offset += MWIFIEX_MGMT_FRAME_HEADER_SIZE;
- }
-
- local_tx_pd->tx_pkt_offset = cpu_to_le16(pkt_offset);
-
- /* make space for INTF_HEADER_LEN */
- skb_push(skb, hroom);
-
- if (!local_tx_pd->tx_control)
- /* TxCtrl set by user or default */
- local_tx_pd->tx_control = cpu_to_le32(priv->pkt_tx_ctrl);
-
- return skb->data;
-}
-
-/*
- * This function tells firmware to send a NULL data packet.
- *
- * The function creates a NULL data packet with TxPD and sends to the
- * firmware for transmission, with highest priority setting.
- */
-int mwifiex_send_null_packet(struct mwifiex_private *priv, u8 flags)
-{
- struct mwifiex_adapter *adapter = priv->adapter;
- struct txpd *local_tx_pd;
- struct mwifiex_tx_param tx_param;
-/* sizeof(struct txpd) + Interface specific header */
-#define NULL_PACKET_HDR 64
- u32 data_len = NULL_PACKET_HDR;
- struct sk_buff *skb;
- int ret;
- struct mwifiex_txinfo *tx_info = NULL;
-
- if (adapter->surprise_removed)
- return -1;
-
- if (!priv->media_connected)
- return -1;
-
- if (adapter->data_sent)
- return -1;
-
- if (adapter->if_ops.is_port_ready &&
- !adapter->if_ops.is_port_ready(priv))
- return -1;
-
- skb = dev_alloc_skb(data_len);
- if (!skb)
- return -1;
-
- tx_info = MWIFIEX_SKB_TXCB(skb);
- memset(tx_info, 0, sizeof(*tx_info));
- tx_info->bss_num = priv->bss_num;
- tx_info->bss_type = priv->bss_type;
- tx_info->pkt_len = data_len - (sizeof(struct txpd) + INTF_HEADER_LEN);
- skb_reserve(skb, sizeof(struct txpd) + INTF_HEADER_LEN);
- skb_push(skb, sizeof(struct txpd));
-
- local_tx_pd = (struct txpd *) skb->data;
- local_tx_pd->tx_control = cpu_to_le32(priv->pkt_tx_ctrl);
- local_tx_pd->flags = flags;
- local_tx_pd->priority = WMM_HIGHEST_PRIORITY;
- local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd));
- local_tx_pd->bss_num = priv->bss_num;
- local_tx_pd->bss_type = priv->bss_type;
-
- if (adapter->iface_type == MWIFIEX_USB) {
- ret = adapter->if_ops.host_to_card(adapter, priv->usb_port,
- skb, NULL);
- } else {
- skb_push(skb, INTF_HEADER_LEN);
- tx_param.next_pkt_len = 0;
- ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_DATA,
- skb, &tx_param);
- }
- switch (ret) {
- case -EBUSY:
- dev_kfree_skb_any(skb);
- mwifiex_dbg(adapter, ERROR,
- "%s: host_to_card failed: ret=%d\n",
- __func__, ret);
- adapter->dbg.num_tx_host_to_card_failure++;
- break;
- case -1:
- dev_kfree_skb_any(skb);
- mwifiex_dbg(adapter, ERROR,
- "%s: host_to_card failed: ret=%d\n",
- __func__, ret);
- adapter->dbg.num_tx_host_to_card_failure++;
- break;
- case 0:
- dev_kfree_skb_any(skb);
- mwifiex_dbg(adapter, DATA,
- "data: %s: host_to_card succeeded\n",
- __func__);
- adapter->tx_lock_flag = true;
- break;
- case -EINPROGRESS:
- adapter->tx_lock_flag = true;
- break;
- default:
- break;
- }
-
- return ret;
-}
-
-/*
- * This function checks if we need to send last packet indication.
- */
-u8
-mwifiex_check_last_packet_indication(struct mwifiex_private *priv)
-{
- struct mwifiex_adapter *adapter = priv->adapter;
- u8 ret = false;
-
- if (!adapter->sleep_period.period)
- return ret;
- if (mwifiex_wmm_lists_empty(adapter))
- ret = true;
-
- if (ret && !adapter->cmd_sent && !adapter->curr_cmd &&
- !is_command_pending(adapter)) {
- adapter->delay_null_pkt = false;
- ret = true;
- } else {
- ret = false;
- adapter->delay_null_pkt = true;
- }
- return ret;
-}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-03 23:20:37 +0000