// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
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*
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* Contact Information: wlanfae <wlanfae@realtek.com>
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*/
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#include "rtl_core.h"
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#include "r8192E_hw.h"
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#include "r8192E_cmdpkt.h"
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bool rtl92e_send_cmd_pkt(struct net_device *dev, u32 type, const void *data,
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u32 len)
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{
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bool rt_status = true;
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struct r8192_priv *priv = rtllib_priv(dev);
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u16 frag_length = 0, frag_offset = 0;
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struct sk_buff *skb;
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unsigned char *seg_ptr;
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struct cb_desc *tcb_desc;
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u8 bLastIniPkt;
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struct tx_fwinfo_8190pci *pTxFwInfo = NULL;
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RT_TRACE(COMP_CMDPKT, "%s(),buffer_len is %d\n", __func__, len);
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do {
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if ((len - frag_offset) > CMDPACKET_FRAG_SIZE) {
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frag_length = CMDPACKET_FRAG_SIZE;
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bLastIniPkt = 0;
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} else {
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frag_length = (u16)(len - frag_offset);
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bLastIniPkt = 1;
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}
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if (type == DESC_PACKET_TYPE_NORMAL)
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skb = dev_alloc_skb(frag_length +
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priv->rtllib->tx_headroom + 4);
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else
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skb = dev_alloc_skb(frag_length + 4);
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if (!skb) {
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rt_status = false;
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goto Failed;
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}
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memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
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tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
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tcb_desc->queue_index = TXCMD_QUEUE;
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tcb_desc->bCmdOrInit = type;
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tcb_desc->bLastIniPkt = bLastIniPkt;
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if (type == DESC_PACKET_TYPE_NORMAL) {
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tcb_desc->pkt_size = frag_length;
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seg_ptr = skb_put(skb, priv->rtllib->tx_headroom);
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pTxFwInfo = (struct tx_fwinfo_8190pci *)seg_ptr;
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memset(pTxFwInfo, 0, sizeof(struct tx_fwinfo_8190pci));
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memset(pTxFwInfo, 0x12, 8);
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} else {
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tcb_desc->txbuf_size = (u16)frag_length;
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}
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seg_ptr = skb_put(skb, frag_length);
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memcpy(seg_ptr, data, (u32)frag_length);
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if (type == DESC_PACKET_TYPE_INIT &&
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(!priv->rtllib->check_nic_enough_desc(dev, TXCMD_QUEUE) ||
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(!skb_queue_empty(&priv->rtllib->skb_waitQ[TXCMD_QUEUE])) ||
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(priv->rtllib->queue_stop))) {
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skb_queue_tail(&priv->rtllib->skb_waitQ[TXCMD_QUEUE],
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skb);
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} else {
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priv->rtllib->softmac_hard_start_xmit(skb, dev);
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}
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data += frag_length;
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frag_offset += frag_length;
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} while (frag_offset < len);
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rtl92e_writeb(dev, TPPoll, TPPoll_CQ);
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Failed:
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return rt_status;
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}
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