/******************************************************************************
 *
 * Copyright(c) 2007 - 2017 Realtek Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 *****************************************************************************/
#define _HCI_OPS_OS_C_

#include <drv_types.h>
#include <rtl8188e_hal.h>


#ifdef CONFIG_SUPPORT_USB_INT
void interrupt_handler_8188eu(_adapter *padapter, u16 pkt_len, u8 *pbuf)
{
	HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(padapter);
	struct reportpwrstate_parm pwr_rpt;

	if (pkt_len != INTERRUPT_MSG_FORMAT_LEN) {
		RTW_INFO("%s Invalid interrupt content length (%d)!\n", __FUNCTION__, pkt_len);
		return ;
	}

	/* HISR */
	_rtw_memcpy(&(pHalData->IntArray[0]), &(pbuf[USB_INTR_CONTENT_HISR_OFFSET]), 4);
	_rtw_memcpy(&(pHalData->IntArray[1]), &(pbuf[USB_INTR_CONTENT_HISRE_OFFSET]), 4);

#if 0 /* DBG */
	{
		u32 hisr = 0 , hisr_ex = 0;
		_rtw_memcpy(&hisr, &(pHalData->IntArray[0]), 4);
		hisr = le32_to_cpu(hisr);

		_rtw_memcpy(&hisr_ex, &(pHalData->IntArray[1]), 4);
		hisr_ex = le32_to_cpu(hisr_ex);

		if ((hisr != 0) || (hisr_ex != 0))
			RTW_INFO("===> %s hisr:0x%08x ,hisr_ex:0x%08x\n", __FUNCTION__, hisr, hisr_ex);
	}
#endif


#ifdef CONFIG_LPS_LCLK
	if (pHalData->IntArray[0]  & IMR_CPWM_88E) {
		_rtw_memcpy(&pwr_rpt.state, &(pbuf[USB_INTR_CONTENT_CPWM1_OFFSET]), 1);
		/* _rtw_memcpy(&pwr_rpt.state2, &(pbuf[USB_INTR_CONTENT_CPWM2_OFFSET]), 1); */

		/* 88e's cpwm value only change BIT0, so driver need to add PS_STATE_S2 for LPS flow.		 */
		pwr_rpt.state |= PS_STATE_S2;
		_set_workitem(&(adapter_to_pwrctl(padapter)->cpwm_event));
	}
#endif/* CONFIG_LPS_LCLK */

#ifdef CONFIG_INTERRUPT_BASED_TXBCN

#ifdef CONFIG_INTERRUPT_BASED_TXBCN_EARLY_INT
	if (pHalData->IntArray[0] & IMR_BCNDMAINT0_88E) /*only for BCN_0*/
#endif
#ifdef CONFIG_INTERRUPT_BASED_TXBCN_BCN_OK_ERR
		if (pHalData->IntArray[0] & (IMR_TBDER_88E | IMR_TBDOK_88E))
#endif
		{
#if 0
			if (pHalData->IntArray[0] & IMR_BCNDMAINT0_88E)
				RTW_INFO("%s: HISR_BCNERLY_INT\n", __func__);
			if (pHalData->IntArray[0] & IMR_TBDOK_88E)
				RTW_INFO("%s: HISR_TXBCNOK\n", __func__);
			if (pHalData->IntArray[0] & IMR_TBDER_88E)
				RTW_INFO("%s: HISR_TXBCNERR\n", __func__);
#endif

			rtw_mi_set_tx_beacon_cmd(padapter);
		}
#endif /* CONFIG_INTERRUPT_BASED_TXBCN */




#ifdef DBG_CONFIG_ERROR_DETECT_INT
	if (pHalData->IntArray[1]  & IMR_TXERR_88E)
		RTW_INFO("===> %s Tx Error Flag Interrupt Status\n", __FUNCTION__);
	if (pHalData->IntArray[1]  & IMR_RXERR_88E)
		RTW_INFO("===> %s Rx Error Flag INT Status\n", __FUNCTION__);
	if (pHalData->IntArray[1]  & IMR_TXFOVW_88E)
		RTW_INFO("===> %s Transmit FIFO Overflow\n", __FUNCTION__);
	if (pHalData->IntArray[1]  & IMR_RXFOVW_88E)
		RTW_INFO("===> %s Receive FIFO Overflow\n", __FUNCTION__);
#endif/* DBG_CONFIG_ERROR_DETECT_INT */


#ifdef CONFIG_FW_C2H_REG
	/* C2H Event */
	if (pbuf[0] != 0)
		usb_c2h_hisr_hdl(padapter, pbuf);
#endif
}
#endif


int recvbuf2recvframe(PADAPTER padapter, void *ptr)
{
	u8	*pbuf;
	u16	pkt_cnt;
	u32	pkt_offset;
	s32	transfer_len;
	struct recv_stat	*prxstat;
	union recv_frame	*precvframe = NULL;
	struct rx_pkt_attrib	*pattrib = NULL;
	HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(padapter);
	struct recv_priv	*precvpriv = &padapter->recvpriv;
	_queue			*pfree_recv_queue = &precvpriv->free_recv_queue;
	_pkt *pskb;

#ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
	pskb = NULL;
	transfer_len = (s32)((struct recv_buf *)ptr)->transfer_len;
	pbuf = ((struct recv_buf *)ptr)->pbuf;
#else
	pskb = (_pkt *)ptr;
	transfer_len = (s32)pskb->len;
	pbuf = pskb->data;
#endif
	prxstat = (struct recv_stat *)pbuf;
	pkt_cnt = (le32_to_cpu(prxstat->rxdw2) >> 16) & 0xff;

#if 0 /* temp remove when disable usb rx aggregation */
	if ((pkt_cnt > 10) || (pkt_cnt < 1) || (transfer_len < RXDESC_SIZE) || (pkt_len <= 0))
		return _FAIL;
#endif

	do {

		prxstat = (struct recv_stat *)pbuf;

		precvframe = rtw_alloc_recvframe(pfree_recv_queue);
		if (precvframe == NULL) {
			RTW_INFO("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __FUNCTION__, __LINE__);
			goto _exit_recvbuf2recvframe;
		}

		_rtw_init_listhead(&precvframe->u.hdr.list);
		precvframe->u.hdr.precvbuf = NULL;	/* can't access the precvbuf for new arch. */
		precvframe->u.hdr.len = 0;

		rtl8188e_query_rx_desc_status(precvframe, prxstat);

		pattrib = &precvframe->u.hdr.attrib;

		if ((padapter->registrypriv.mp_mode == 0) && ((pattrib->crc_err) || (pattrib->icv_err))) {
			RTW_INFO("%s: RX Warning! crc_err=%d icv_err=%d, skip!\n", __FUNCTION__, pattrib->crc_err, pattrib->icv_err);
			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}


		pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;

		if ((pattrib->pkt_len <= 0) || (pkt_offset > transfer_len)) {
			RTW_INFO("%s()-%d: RX Warning!,pkt_len<=0 or pkt_offset> transfoer_len\n", __FUNCTION__, __LINE__);
			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

#ifdef CONFIG_RX_PACKET_APPEND_FCS
		if (check_fwstate(&padapter->mlmepriv, WIFI_MONITOR_STATE) == _FALSE)
			if ((pattrib->pkt_rpt_type == NORMAL_RX) && rtw_hal_rcr_check(padapter, RCR_APPFCS))
				pattrib->pkt_len -= IEEE80211_FCS_LEN;
#endif

		if (rtw_os_alloc_recvframe(padapter, precvframe,
			(pbuf + pattrib->shift_sz + pattrib->drvinfo_sz + RXDESC_SIZE), pskb) == _FAIL) {
			rtw_free_recvframe(precvframe, pfree_recv_queue);

			goto _exit_recvbuf2recvframe;
		}

		recvframe_put(precvframe, pattrib->pkt_len);
		/* recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE);	 */

		if (pattrib->pkt_rpt_type == NORMAL_RX) /* Normal rx packet */
			pre_recv_entry(precvframe, pattrib->physt ? (pbuf + RXDESC_OFFSET) : NULL);
		else { /* pkt_rpt_type == TX_REPORT1-CCX, TX_REPORT2-TX RTP,HIS_REPORT-USB HISR RTP */

			/* enqueue recvframe to txrtp queue */
			if (pattrib->pkt_rpt_type == TX_REPORT1) {
				/* RTW_INFO("rx CCX\n"); */
				/* CCX-TXRPT ack for xmit mgmt frames. */
				handle_txrpt_ccx_88e(padapter, precvframe->u.hdr.rx_data);
			} else if (pattrib->pkt_rpt_type == TX_REPORT2) {
				/* RTW_INFO("recv TX RPT\n"); */
				odm_ra_tx_rpt2_handle_8188e(
					&pHalData->odmpriv,
					precvframe->u.hdr.rx_data,
					pattrib->pkt_len,
					pattrib->MacIDValidEntry[0],
					pattrib->MacIDValidEntry[1]
				);

			} else if (pattrib->pkt_rpt_type == HIS_REPORT) {
				/* RTW_INFO("%s , rx USB HISR\n",__FUNCTION__); */
#ifdef CONFIG_SUPPORT_USB_INT
				interrupt_handler_8188eu(padapter, pattrib->pkt_len, precvframe->u.hdr.rx_data);
#endif
			}
			rtw_free_recvframe(precvframe, pfree_recv_queue);

		}

#ifdef CONFIG_USB_RX_AGGREGATION
		switch (pHalData->rxagg_mode) {
		case RX_AGG_DMA:
		case RX_AGG_MIX:
			pkt_offset = (u16)_RND128(pkt_offset);
			break;
		case RX_AGG_USB:
			pkt_offset = (u16)_RND4(pkt_offset);
			break;
		case RX_AGG_DISABLE:
		default:
			break;
		}
#endif
		pkt_cnt--;
		transfer_len -= pkt_offset;
		pbuf += pkt_offset;
		precvframe = NULL;

		if (transfer_len > 0 && pkt_cnt == 0)
			pkt_cnt = (le32_to_cpu(prxstat->rxdw2) >> 16) & 0xff;

	} while ((transfer_len > 0) && (pkt_cnt > 0));

_exit_recvbuf2recvframe:

	return _SUCCESS;
}



void rtl8188eu_xmit_tasklet(void *priv)
{
	int ret = _FALSE;
	_adapter *padapter = (_adapter *)priv;
	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;

	while (1) {
		if (RTW_CANNOT_TX(padapter)) {
			RTW_INFO("xmit_tasklet => bDriverStopped or bSurpriseRemoved or bWritePortCancel\n");
			break;
		}

		if (rtw_xmit_ac_blocked(padapter) == _TRUE)
			break;

		ret = rtl8188eu_xmitframe_complete(padapter, pxmitpriv, NULL);

		if (ret == _FALSE)
			break;
	}

}

void rtl8188eu_set_hw_type(struct dvobj_priv *pdvobj)
{
	pdvobj->HardwareType = HARDWARE_TYPE_RTL8188EU;
	RTW_INFO("CHIP TYPE: RTL8188E\n");
}
