drivers/staging/rtl8723bs/core/rtw_io.c

Source file repositories/reference/linux-study-clean/drivers/staging/rtl8723bs/core/rtw_io.c

File Facts

System
Linux kernel
Corpus path
drivers/staging/rtl8723bs/core/rtw_io.c
Extension
.c
Size
4278 bytes
Lines
159
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.
 *
 ******************************************************************************/
/*
 * The purpose of rtw_io.c
 *
 * a. provides the API
 *
 * b. provides the protocol engine
 *
 * c. provides the software interface between caller and the hardware interface
 *
 *
 * Compiler Flag Option:
 *
 * 1. CONFIG_SDIO_HCI:
 *  a. USE_SYNC_IRP:  Only sync operations are provided.
 *  b. USE_ASYNC_IRP:Both sync/async operations are provided.
 *
 *  jackson@realtek.com.tw
 */

#include <drv_types.h>

u8 rtw_read8(struct adapter *adapter, u32 addr)
{
	/* struct	io_queue	*pio_queue = (struct io_queue *)adapter->pio_queue; */
	struct io_priv *pio_priv = &adapter->iopriv;
	struct	intf_hdl		*pintfhdl = &pio_priv->intf;
	u8 (*_read8)(struct intf_hdl *pintfhdl, u32 addr);

	_read8 = pintfhdl->io_ops._read8;

	return _read8(pintfhdl, addr);
}

u16 rtw_read16(struct adapter *adapter, u32 addr)
{
	/* struct	io_queue	*pio_queue = (struct io_queue *)adapter->pio_queue; */
	struct io_priv *pio_priv = &adapter->iopriv;
	struct	intf_hdl		*pintfhdl = &pio_priv->intf;
	u16 (*_read16)(struct intf_hdl *pintfhdl, u32 addr);

	_read16 = pintfhdl->io_ops._read16;

	return _read16(pintfhdl, addr);
}

u32 rtw_read32(struct adapter *adapter, u32 addr)
{
	/* struct	io_queue	*pio_queue = (struct io_queue *)adapter->pio_queue; */
	struct io_priv *pio_priv = &adapter->iopriv;
	struct	intf_hdl		*pintfhdl = &pio_priv->intf;
	u32 (*_read32)(struct intf_hdl *pintfhdl, u32 addr);

	_read32 = pintfhdl->io_ops._read32;

	return _read32(pintfhdl, addr);
}

int rtw_write8(struct adapter *adapter, u32 addr, u8 val)
{
	/* struct	io_queue	*pio_queue = (struct io_queue *)adapter->pio_queue; */
	struct io_priv *pio_priv = &adapter->iopriv;
	struct	intf_hdl		*pintfhdl = &pio_priv->intf;
	int (*_write8)(struct intf_hdl *pintfhdl, u32 addr, u8 val);
	int ret;

	_write8 = pintfhdl->io_ops._write8;

	ret = _write8(pintfhdl, addr, val);

	return RTW_STATUS_CODE(ret);
}

int rtw_write16(struct adapter *adapter, u32 addr, u16 val)
{
	/* struct	io_queue	*pio_queue = (struct io_queue *)adapter->pio_queue; */
	struct io_priv *pio_priv = &adapter->iopriv;
	struct	intf_hdl		*pintfhdl = &pio_priv->intf;
	int (*_write16)(struct intf_hdl *pintfhdl, u32 addr, u16 val);
	int ret;

	_write16 = pintfhdl->io_ops._write16;

	ret = _write16(pintfhdl, addr, val);
	return RTW_STATUS_CODE(ret);

Annotation

Implementation Notes