drivers/staging/rtlwifi/pci.h - linux - Git at Google

 /* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  *
  * Copyright(c) 2009-2012  Realtek Corporation.
  *
  * Contact Information:
  * wlanfae <wlanfae@realtek.com>
  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  * Hsinchu 300, Taiwan.
  *
  * Larry Finger <Larry.Finger@lwfinger.net>
  *
  *****************************************************************************/

 #ifndef __RTL_PCI_H__
 #define __RTL_PCI_H__

 #include <linux/pci.h>
 /* 1: MSDU packet queue,
  * 2: Rx Command Queue
  */
 #define RTL_PCI_RX_MPDU_QUEUE			0
 #define RTL_PCI_RX_CMD_QUEUE			1
 #define RTL_PCI_MAX_RX_QUEUE			2

 #define RTL_PCI_MAX_RX_COUNT			512/*64*/
 #define RTL_PCI_MAX_TX_QUEUE_COUNT		9

 #define RT_TXDESC_NUM				128
 #define TX_DESC_NUM_92E				512
 #define TX_DESC_NUM_8822B			512
 #define RT_TXDESC_NUM_BE_QUEUE			256

 #define BK_QUEUE				0
 #define BE_QUEUE				1
 #define VI_QUEUE				2
 #define VO_QUEUE				3
 #define BEACON_QUEUE				4
 #define TXCMD_QUEUE				5
 #define MGNT_QUEUE				6
 #define HIGH_QUEUE				7
 #define HCCA_QUEUE				8
 #define H2C_QUEUE				TXCMD_QUEUE	/* In 8822B */

 #define RTL_PCI_DEVICE(vend, dev, cfg)  \
 	.vendor = (vend), \
 	.device = (dev), \
 	.subvendor = PCI_ANY_ID, \
 	.subdevice = PCI_ANY_ID,\
 	.driver_data = (kernel_ulong_t)&(cfg)

 #define INTEL_VENDOR_ID				0x8086
 #define SIS_VENDOR_ID				0x1039
 #define ATI_VENDOR_ID				0x1002
 #define ATI_DEVICE_ID				0x7914
 #define AMD_VENDOR_ID				0x1022

 #define PCI_MAX_BRIDGE_NUMBER			255
 #define PCI_MAX_DEVICES				32
 #define PCI_MAX_FUNCTION			8

 #define PCI_CONF_ADDRESS	0x0CF8	/*PCI Configuration Space Address */
 #define PCI_CONF_DATA		0x0CFC	/*PCI Configuration Space Data */

 #define PCI_CLASS_BRIDGE_DEV		0x06
 #define PCI_SUBCLASS_BR_PCI_TO_PCI	0x04
 #define PCI_CAPABILITY_ID_PCI_EXPRESS	0x10
 #define PCI_CAP_ID_EXP			0x10

 #define U1DONTCARE			0xFF
 #define U2DONTCARE			0xFFFF
 #define U4DONTCARE			0xFFFFFFFF

 #define RTL_PCI_8192_DID	0x8192	/*8192 PCI-E */
 #define RTL_PCI_8192SE_DID	0x8192	/*8192 SE */
 #define RTL_PCI_8174_DID	0x8174	/*8192 SE */
 #define RTL_PCI_8173_DID	0x8173	/*8191 SE Crab */
 #define RTL_PCI_8172_DID	0x8172	/*8191 SE RE */
 #define RTL_PCI_8171_DID	0x8171	/*8191 SE Unicron */
 #define RTL_PCI_8723AE_DID	0x8723	/*8723AE */
 #define RTL_PCI_0045_DID	0x0045	/*8190 PCI for Ceraga */
 #define RTL_PCI_0046_DID	0x0046	/*8190 Cardbus for Ceraga */
 #define RTL_PCI_0044_DID	0x0044	/*8192e PCIE for Ceraga */
 #define RTL_PCI_0047_DID	0x0047	/*8192e Express Card for Ceraga */
 #define RTL_PCI_700F_DID	0x700F
 #define RTL_PCI_701F_DID	0x701F
 #define RTL_PCI_DLINK_DID	0x3304
 #define RTL_PCI_8723AE_DID	0x8723	/*8723e */
 #define RTL_PCI_8192CET_DID	0x8191	/*8192ce */
 #define RTL_PCI_8192CE_DID	0x8178	/*8192ce */
 #define RTL_PCI_8191CE_DID	0x8177	/*8192ce */
 #define RTL_PCI_8188CE_DID	0x8176	/*8192ce */
 #define RTL_PCI_8192CU_DID	0x8191	/*8192ce */
 #define RTL_PCI_8192DE_DID	0x8193	/*8192de */
 #define RTL_PCI_8192DE_DID2	0x002B	/*92DE*/
 #define RTL_PCI_8188EE_DID	0x8179  /*8188ee*/
 #define RTL_PCI_8723BE_DID	0xB723  /*8723be*/
 #define RTL_PCI_8192EE_DID	0x818B	/*8192ee*/
 #define RTL_PCI_8821AE_DID	0x8821	/*8821ae*/
 #define RTL_PCI_8812AE_DID	0x8812	/*8812ae*/
 #define RTL_PCI_8822BE_DID	0xB822	/*8822be*/

 /*8192 support 16 pages of IO registers*/
 #define RTL_MEM_MAPPED_IO_RANGE_8190PCI		0x1000
 #define RTL_MEM_MAPPED_IO_RANGE_8192PCIE	0x4000
 #define RTL_MEM_MAPPED_IO_RANGE_8192SE		0x4000
 #define RTL_MEM_MAPPED_IO_RANGE_8192CE		0x4000
 #define RTL_MEM_MAPPED_IO_RANGE_8192DE		0x4000

 #define RTL_PCI_REVISION_ID_8190PCI		0x00
 #define RTL_PCI_REVISION_ID_8192PCIE		0x01
 #define RTL_PCI_REVISION_ID_8192SE		0x10
 #define RTL_PCI_REVISION_ID_8192CE		0x1
 #define RTL_PCI_REVISION_ID_8192DE		0x0

 #define RTL_DEFAULT_HARDWARE_TYPE	HARDWARE_TYPE_RTL8192CE

 enum pci_bridge_vendor {
 	PCI_BRIDGE_VENDOR_INTEL = 0x0,	/*0b'0000,0001 */
 	PCI_BRIDGE_VENDOR_ATI,		/*0b'0000,0010*/
 	PCI_BRIDGE_VENDOR_AMD,		/*0b'0000,0100*/
 	PCI_BRIDGE_VENDOR_SIS,		/*0b'0000,1000*/
 	PCI_BRIDGE_VENDOR_UNKNOWN,	/*0b'0100,0000*/
 	PCI_BRIDGE_VENDOR_MAX,
 };

 struct rtl_pci_capabilities_header {
 	u8 capability_id;
 	u8 next;
 };

 /* In new TRX flow, Buffer_desc is new concept
  * But TX wifi info == TX descriptor in old flow
  * RX wifi info == RX descriptor in old flow
  */
 struct rtl_tx_buffer_desc {
 	u32 dword[4 * (1 << (BUFDESC_SEG_NUM + 1))];
 } __packed;

 struct rtl_tx_desc {
 	u32 dword[16];
 } __packed;

 struct rtl_rx_buffer_desc { /*rx buffer desc*/
 	u32 dword[4];
 } __packed;

 struct rtl_rx_desc { /*old: rx desc new: rx wifi info*/
 	u32 dword[8];
 } __packed;

 struct rtl_tx_cmd_desc {
 	u32 dword[16];
 } __packed;

 struct rtl8192_tx_ring {
 	struct rtl_tx_desc *desc;
 	dma_addr_t dma;
 	unsigned int idx;
 	unsigned int entries;
 	struct sk_buff_head queue;
 	/*add for new trx flow*/
 	struct rtl_tx_buffer_desc *buffer_desc; /*tx buffer descriptor*/
 	dma_addr_t buffer_desc_dma; /*tx bufferd desc dma memory*/
 	u16 cur_tx_wp; /* current_tx_write_point */
 	u16 cur_tx_rp; /* current_tx_read_point */
 };

 struct rtl8192_rx_ring {
 	struct rtl_rx_desc *desc;
 	dma_addr_t dma;
 	unsigned int idx;
 	struct sk_buff *rx_buf[RTL_PCI_MAX_RX_COUNT];
 	/*add for new trx flow*/
 	struct rtl_rx_buffer_desc *buffer_desc; /*rx buffer descriptor*/
 	u16 next_rx_rp; /* next_rx_read_point */
 };

 struct rtl_pci {
 	struct pci_dev *pdev;
 	bool irq_enabled;

 	bool driver_is_goingto_unload;
 	bool up_first_time;
 	bool first_init;
 	bool being_init_adapter;
 	bool init_ready;

 	/*Tx */
 	struct rtl8192_tx_ring tx_ring[RTL_PCI_MAX_TX_QUEUE_COUNT];
 	int txringcount[RTL_PCI_MAX_TX_QUEUE_COUNT];
 	u32 transmit_config;

 	/*Rx */
 	struct rtl8192_rx_ring rx_ring[RTL_PCI_MAX_RX_QUEUE];
 	int rxringcount;
 	u16 rxbuffersize;
 	u32 receive_config;

 	/*irq */
 	u8 irq_alloc;
 	u32 irq_mask[4];	/* 0-1: normal, 2: unused, 3: h2c */
 	u32 sys_irq_mask;

 	/*Bcn control register setting */
 	u32 reg_bcn_ctrl_val;

 	 /*ASPM*/ u8 const_pci_aspm;
 	u8 const_amdpci_aspm;
 	u8 const_hwsw_rfoff_d3;
 	u8 const_support_pciaspm;
 	/*pci-e bridge */
 	u8 const_hostpci_aspm_setting;
 	/*pci-e device */
 	u8 const_devicepci_aspm_setting;
 	/* If it supports ASPM, Offset[560h] = 0x40,
 	 * otherwise Offset[560h] = 0x00.
 	 */
 	bool support_aspm;
 	bool support_backdoor;

 	/*QOS & EDCA */
 	enum acm_method acm_method;

 	u16 shortretry_limit;
 	u16 longretry_limit;

 	/* MSI support */
 	bool msi_support;
 	bool using_msi;
 	/* interrupt clear before set */
 	bool int_clear;
 };

 struct mp_adapter {
 	u8 linkctrl_reg;

 	u8 busnumber;
 	u8 devnumber;
 	u8 funcnumber;

 	u8 pcibridge_busnum;
 	u8 pcibridge_devnum;
 	u8 pcibridge_funcnum;

 	u8 pcibridge_vendor;
 	u16 pcibridge_vendorid;
 	u16 pcibridge_deviceid;

 	u8 num4bytes;

 	u8 pcibridge_pciehdr_offset;
 	u8 pcibridge_linkctrlreg;

 	bool amd_l1_patch;
 };

 struct rtl_pci_priv {
 	struct bt_coexist_info bt_coexist;
 	struct rtl_led_ctl ledctl;
 	struct rtl_pci dev;
 	struct mp_adapter ndis_adapter;
 };

 #define rtl_pcipriv(hw)		(((struct rtl_pci_priv *)(rtl_priv(hw))->priv))
 #define rtl_pcidev(pcipriv)	(&((pcipriv)->dev))

 int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw);

 extern const struct rtl_intf_ops rtl_pci_ops;

 int rtl_pci_probe(struct pci_dev *pdev,
 		  const struct pci_device_id *id);
 void rtl_pci_disconnect(struct pci_dev *pdev);
 #ifdef CONFIG_PM_SLEEP
 int rtl_pci_suspend(struct device *dev);
 int rtl_pci_resume(struct device *dev);
 #endif /* CONFIG_PM_SLEEP */
 static inline u8 pci_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
 {
 	return readb((u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
 }

 static inline u16 pci_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
 {
 	return readw((u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
 }

 static inline u32 pci_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
 {
 	return readl((u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
 }

 static inline void pci_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
 {
 	writeb(val, (u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
 }

 static inline void pci_write16_async(struct rtl_priv *rtlpriv,
 				     u32 addr, u16 val)
 {
 	writew(val, (u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
 }

 static inline void pci_write32_async(struct rtl_priv *rtlpriv,
 				     u32 addr, u32 val)
 {
 	writel(val, (u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
 }

 static inline u16 calc_fifo_space(u16 rp, u16 wp, u16 size)
 {
 	if (rp <= wp)
 		return size - 1 + rp - wp;
 	return rp - wp - 1;
 }

 #endif
	/* SPDX-License-Identifier: GPL-2.0 */
	/******************************************************************************
	*
	* Copyright(c) 2009-2012 Realtek Corporation.
	*
	* Contact Information:
	* wlanfae <wlanfae@realtek.com>
	* Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
	* Hsinchu 300, Taiwan.
	*
	* Larry Finger <Larry.Finger@lwfinger.net>
	*
	*****************************************************************************/

	#ifndef __RTL_PCI_H__
	#define __RTL_PCI_H__

	#include <linux/pci.h>
	/* 1: MSDU packet queue,
	* 2: Rx Command Queue
	*/
	#define RTL_PCI_RX_MPDU_QUEUE 0
	#define RTL_PCI_RX_CMD_QUEUE 1
	#define RTL_PCI_MAX_RX_QUEUE 2

	#define RTL_PCI_MAX_RX_COUNT 512/64/
	#define RTL_PCI_MAX_TX_QUEUE_COUNT 9

	#define RT_TXDESC_NUM 128
	#define TX_DESC_NUM_92E 512
	#define TX_DESC_NUM_8822B 512
	#define RT_TXDESC_NUM_BE_QUEUE 256

	#define BK_QUEUE 0
	#define BE_QUEUE 1
	#define VI_QUEUE 2
	#define VO_QUEUE 3
	#define BEACON_QUEUE 4
	#define TXCMD_QUEUE 5
	#define MGNT_QUEUE 6
	#define HIGH_QUEUE 7
	#define HCCA_QUEUE 8
	#define H2C_QUEUE TXCMD_QUEUE /* In 8822B */

	#define RTL_PCI_DEVICE(vend, dev, cfg) \
	.vendor = (vend), \
	.device = (dev), \
	.subvendor = PCI_ANY_ID, \
	.subdevice = PCI_ANY_ID,\
	.driver_data = (kernel_ulong_t)&(cfg)

	#define INTEL_VENDOR_ID 0x8086
	#define SIS_VENDOR_ID 0x1039
	#define ATI_VENDOR_ID 0x1002
	#define ATI_DEVICE_ID 0x7914
	#define AMD_VENDOR_ID 0x1022

	#define PCI_MAX_BRIDGE_NUMBER 255
	#define PCI_MAX_DEVICES 32
	#define PCI_MAX_FUNCTION 8

	#define PCI_CONF_ADDRESS 0x0CF8 /PCI Configuration Space Address /
	#define PCI_CONF_DATA 0x0CFC /PCI Configuration Space Data /

	#define PCI_CLASS_BRIDGE_DEV 0x06
	#define PCI_SUBCLASS_BR_PCI_TO_PCI 0x04
	#define PCI_CAPABILITY_ID_PCI_EXPRESS 0x10
	#define PCI_CAP_ID_EXP 0x10

	#define U1DONTCARE 0xFF
	#define U2DONTCARE 0xFFFF
	#define U4DONTCARE 0xFFFFFFFF

	#define RTL_PCI_8192_DID 0x8192 /8192 PCI-E /
	#define RTL_PCI_8192SE_DID 0x8192 /8192 SE /
	#define RTL_PCI_8174_DID 0x8174 /8192 SE /
	#define RTL_PCI_8173_DID 0x8173 /8191 SE Crab /
	#define RTL_PCI_8172_DID 0x8172 /8191 SE RE /
	#define RTL_PCI_8171_DID 0x8171 /8191 SE Unicron /
	#define RTL_PCI_8723AE_DID 0x8723 /8723AE /
	#define RTL_PCI_0045_DID 0x0045 /8190 PCI for Ceraga /
	#define RTL_PCI_0046_DID 0x0046 /8190 Cardbus for Ceraga /
	#define RTL_PCI_0044_DID 0x0044 /8192e PCIE for Ceraga /
	#define RTL_PCI_0047_DID 0x0047 /8192e Express Card for Ceraga /
	#define RTL_PCI_700F_DID 0x700F
	#define RTL_PCI_701F_DID 0x701F
	#define RTL_PCI_DLINK_DID 0x3304
	#define RTL_PCI_8723AE_DID 0x8723 /8723e /
	#define RTL_PCI_8192CET_DID 0x8191 /8192ce /
	#define RTL_PCI_8192CE_DID 0x8178 /8192ce /
	#define RTL_PCI_8191CE_DID 0x8177 /8192ce /
	#define RTL_PCI_8188CE_DID 0x8176 /8192ce /
	#define RTL_PCI_8192CU_DID 0x8191 /8192ce /
	#define RTL_PCI_8192DE_DID 0x8193 /8192de /
	#define RTL_PCI_8192DE_DID2 0x002B /92DE/
	#define RTL_PCI_8188EE_DID 0x8179 /8188ee/
	#define RTL_PCI_8723BE_DID 0xB723 /8723be/
	#define RTL_PCI_8192EE_DID 0x818B /8192ee/
	#define RTL_PCI_8821AE_DID 0x8821 /8821ae/
	#define RTL_PCI_8812AE_DID 0x8812 /8812ae/
	#define RTL_PCI_8822BE_DID 0xB822 /8822be/

	/8192 support 16 pages of IO registers/
	#define RTL_MEM_MAPPED_IO_RANGE_8190PCI 0x1000
	#define RTL_MEM_MAPPED_IO_RANGE_8192PCIE 0x4000
	#define RTL_MEM_MAPPED_IO_RANGE_8192SE 0x4000
	#define RTL_MEM_MAPPED_IO_RANGE_8192CE 0x4000
	#define RTL_MEM_MAPPED_IO_RANGE_8192DE 0x4000

	#define RTL_PCI_REVISION_ID_8190PCI 0x00
	#define RTL_PCI_REVISION_ID_8192PCIE 0x01
	#define RTL_PCI_REVISION_ID_8192SE 0x10
	#define RTL_PCI_REVISION_ID_8192CE 0x1
	#define RTL_PCI_REVISION_ID_8192DE 0x0

	#define RTL_DEFAULT_HARDWARE_TYPE HARDWARE_TYPE_RTL8192CE

	enum pci_bridge_vendor {
	PCI_BRIDGE_VENDOR_INTEL = 0x0, /0b'0000,0001 /
	PCI_BRIDGE_VENDOR_ATI, /0b'0000,0010/
	PCI_BRIDGE_VENDOR_AMD, /0b'0000,0100/
	PCI_BRIDGE_VENDOR_SIS, /0b'0000,1000/
	PCI_BRIDGE_VENDOR_UNKNOWN, /0b'0100,0000/
	PCI_BRIDGE_VENDOR_MAX,
	};

	struct rtl_pci_capabilities_header {
	u8 capability_id;
	u8 next;
	};

	/* In new TRX flow, Buffer_desc is new concept
	* But TX wifi info == TX descriptor in old flow
	* RX wifi info == RX descriptor in old flow
	*/
	struct rtl_tx_buffer_desc {
	u32 dword[4 * (1 << (BUFDESC_SEG_NUM + 1))];
	} __packed;

	struct rtl_tx_desc {
	u32 dword[16];
	} __packed;

	struct rtl_rx_buffer_desc { /rx buffer desc/
	u32 dword[4];
	} __packed;

	struct rtl_rx_desc { /old: rx desc new: rx wifi info/
	u32 dword[8];
	} __packed;

	struct rtl_tx_cmd_desc {
	u32 dword[16];
	} __packed;

	struct rtl8192_tx_ring {
	struct rtl_tx_desc *desc;
	dma_addr_t dma;
	unsigned int idx;
	unsigned int entries;
	struct sk_buff_head queue;
	/add for new trx flow/
	struct rtl_tx_buffer_desc buffer_desc; /tx buffer descriptor*/
	dma_addr_t buffer_desc_dma; /tx bufferd desc dma memory/
	u16 cur_tx_wp; /* current_tx_write_point */
	u16 cur_tx_rp; /* current_tx_read_point */
	};

	struct rtl8192_rx_ring {
	struct rtl_rx_desc *desc;
	dma_addr_t dma;
	unsigned int idx;
	struct sk_buff *rx_buf[RTL_PCI_MAX_RX_COUNT];
	/add for new trx flow/
	struct rtl_rx_buffer_desc buffer_desc; /rx buffer descriptor*/
	u16 next_rx_rp; /* next_rx_read_point */
	};

	struct rtl_pci {
	struct pci_dev *pdev;
	bool irq_enabled;

	bool driver_is_goingto_unload;
	bool up_first_time;
	bool first_init;
	bool being_init_adapter;
	bool init_ready;

	/Tx /
	struct rtl8192_tx_ring tx_ring[RTL_PCI_MAX_TX_QUEUE_COUNT];
	int txringcount[RTL_PCI_MAX_TX_QUEUE_COUNT];
	u32 transmit_config;

	/Rx /
	struct rtl8192_rx_ring rx_ring[RTL_PCI_MAX_RX_QUEUE];
	int rxringcount;
	u16 rxbuffersize;
	u32 receive_config;

	/irq /
	u8 irq_alloc;
	u32 irq_mask[4]; /* 0-1: normal, 2: unused, 3: h2c */
	u32 sys_irq_mask;

	/Bcn control register setting /
	u32 reg_bcn_ctrl_val;

	/ASPM/ u8 const_pci_aspm;
	u8 const_amdpci_aspm;
	u8 const_hwsw_rfoff_d3;
	u8 const_support_pciaspm;
	/pci-e bridge /
	u8 const_hostpci_aspm_setting;
	/pci-e device /
	u8 const_devicepci_aspm_setting;
	/* If it supports ASPM, Offset[560h] = 0x40,
	* otherwise Offset[560h] = 0x00.
	*/
	bool support_aspm;
	bool support_backdoor;

	/QOS & EDCA /
	enum acm_method acm_method;

	u16 shortretry_limit;
	u16 longretry_limit;

	/* MSI support */
	bool msi_support;
	bool using_msi;
	/* interrupt clear before set */
	bool int_clear;
	};

	struct mp_adapter {
	u8 linkctrl_reg;

	u8 busnumber;
	u8 devnumber;
	u8 funcnumber;

	u8 pcibridge_busnum;
	u8 pcibridge_devnum;
	u8 pcibridge_funcnum;

	u8 pcibridge_vendor;
	u16 pcibridge_vendorid;
	u16 pcibridge_deviceid;

	u8 num4bytes;

	u8 pcibridge_pciehdr_offset;
	u8 pcibridge_linkctrlreg;

	bool amd_l1_patch;
	};

	struct rtl_pci_priv {
	struct bt_coexist_info bt_coexist;
	struct rtl_led_ctl ledctl;
	struct rtl_pci dev;
	struct mp_adapter ndis_adapter;
	};

	#define rtl_pcipriv(hw) (((struct rtl_pci_priv *)(rtl_priv(hw))->priv))
	#define rtl_pcidev(pcipriv) (&((pcipriv)->dev))

	int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw);

	extern const struct rtl_intf_ops rtl_pci_ops;

	int rtl_pci_probe(struct pci_dev *pdev,
	const struct pci_device_id *id);
	void rtl_pci_disconnect(struct pci_dev *pdev);
	#ifdef CONFIG_PM_SLEEP
	int rtl_pci_suspend(struct device *dev);
	int rtl_pci_resume(struct device *dev);
	#endif /* CONFIG_PM_SLEEP */
	static inline u8 pci_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
	{
	return readb((u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
	}

	static inline u16 pci_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
	{
	return readw((u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
	}

	static inline u32 pci_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
	{
	return readl((u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
	}

	static inline void pci_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
	{
	writeb(val, (u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
	}

	static inline void pci_write16_async(struct rtl_priv *rtlpriv,
	u32 addr, u16 val)
	{
	writew(val, (u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
	}

	static inline void pci_write32_async(struct rtl_priv *rtlpriv,
	u32 addr, u32 val)
	{
	writel(val, (u8 __iomem *)rtlpriv->io.pci_mem_start + addr);
	}

	static inline u16 calc_fifo_space(u16 rp, u16 wp, u16 size)
	{
	if (rp <= wp)
	return size - 1 + rp - wp;
	return rp - wp - 1;
	}

	#endif