drivers/staging/rtl8723bs/hal/hal_sdio.c

Source file repositories/reference/linux-study-clean/drivers/staging/rtl8723bs/hal/hal_sdio.c

File Facts

System
Linux kernel
Corpus path
drivers/staging/rtl8723bs/hal/hal_sdio.c
Extension
.c
Size
2966 bytes
Lines
106
Domain
Driver Families
Bucket
drivers/staging
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 ******************************************************************************/

#include <drv_types.h>
#include <hal_data.h>

u8 rtw_hal_sdio_max_txoqt_free_space(struct adapter *padapter)
{
	struct hal_com_data	*pHalData = GET_HAL_DATA(padapter);

	if (pHalData->SdioTxOQTMaxFreeSpace < 8)
		pHalData->SdioTxOQTMaxFreeSpace = 8;

	return pHalData->SdioTxOQTMaxFreeSpace;
}

u8 rtw_hal_sdio_query_tx_freepage(
	struct adapter *padapter, u8 PageIdx, u8 RequiredPageNum
)
{
	struct hal_com_data	*pHalData = GET_HAL_DATA(padapter);

	if ((pHalData->SdioTxFIFOFreePage[PageIdx]+pHalData->SdioTxFIFOFreePage[PUBLIC_QUEUE_IDX]) >= (RequiredPageNum))
		return true;
	else
		return false;
}

void rtw_hal_sdio_update_tx_freepage(
	struct adapter *padapter, u8 PageIdx, u8 RequiredPageNum
)
{
	struct hal_com_data	*pHalData = GET_HAL_DATA(padapter);
	u8 DedicatedPgNum = 0;
	u8 RequiredPublicFreePgNum = 0;
	/* _irqL irql; */

	/* spin_lock_bh(&pHalData->SdioTxFIFOFreePageLock); */

	DedicatedPgNum = pHalData->SdioTxFIFOFreePage[PageIdx];
	if (RequiredPageNum <= DedicatedPgNum) {
		pHalData->SdioTxFIFOFreePage[PageIdx] -= RequiredPageNum;
	} else {
		pHalData->SdioTxFIFOFreePage[PageIdx] = 0;
		RequiredPublicFreePgNum = RequiredPageNum - DedicatedPgNum;
		pHalData->SdioTxFIFOFreePage[PUBLIC_QUEUE_IDX] -= RequiredPublicFreePgNum;
	}

	/* spin_unlock_bh(&pHalData->SdioTxFIFOFreePageLock); */
}

void rtw_hal_set_sdio_tx_max_length(
	struct adapter *padapter, u8 numHQ, u8 numNQ, u8 numLQ, u8 numPubQ
)
{
	struct hal_com_data	*pHalData = GET_HAL_DATA(padapter);
	u32 page_size;
	u32 lenHQ, lenNQ, lenLQ;

	rtw_hal_get_def_var(padapter, HAL_DEF_TX_PAGE_SIZE, &page_size);

	lenHQ = ((numHQ + numPubQ) >> 1) * page_size;
	lenNQ = ((numNQ + numPubQ) >> 1) * page_size;
	lenLQ = ((numLQ + numPubQ) >> 1) * page_size;

	pHalData->sdio_tx_max_len[HI_QUEUE_IDX] =
		(lenHQ > MAX_XMITBUF_SZ) ? MAX_XMITBUF_SZ : lenHQ;
	pHalData->sdio_tx_max_len[MID_QUEUE_IDX] =
		(lenNQ > MAX_XMITBUF_SZ) ? MAX_XMITBUF_SZ : lenNQ;
	pHalData->sdio_tx_max_len[LOW_QUEUE_IDX] =
		(lenLQ > MAX_XMITBUF_SZ) ? MAX_XMITBUF_SZ : lenLQ;
}

u32 rtw_hal_get_sdio_tx_max_length(struct adapter *padapter, u8 queue_idx)
{
	struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
	struct hal_com_data	*pHalData = GET_HAL_DATA(padapter);
	u32 deviceId, max_len;


	deviceId = ffaddr2deviceId(pdvobjpriv, queue_idx);
	switch (deviceId) {
	case WLAN_TX_HIQ_DEVICE_ID:
		max_len = pHalData->sdio_tx_max_len[HI_QUEUE_IDX];
		break;

Annotation

Implementation Notes