cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/realtek/rtlwifi/pci.h

/******************************************************************************
 *
 * Copyright(c) 2009-2012  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.
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * 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 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 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*/

/*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 {
#if (RTL8192EE_SEG_NUM == 2)
	
u32 dword[2*(DMA_IS_64BIT + 1)*8]; /*seg = 8*/
#elif (RTL8192EE_SEG_NUM == 1)
	u32 dword[2*(DMA_IS_64BIT + 1)*4]; /*seg = 4*/
#elif (RTL8192EE_SEG_NUM == 0)
	u32 dword[2*(DMA_IS_64BIT + 1)*2]; /*seg = 2*/
#endif
} 
__packed;


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


struct rtl_rx_buffer_desc { /*rx buffer desc*/
	
u32 dword[2];
} 
__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 avl_desc; /* available_desc_to_write */
	
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[2];
	
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); }

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

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

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

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

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

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

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#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Larry Finger105996.54%1578.95%
Chaoming Li282.55%15.26%
Hauke Mehrtens60.55%15.26%
John W. Linville30.27%15.26%
Julia Lawall10.09%15.26%
Total1097100.00%19100.00%
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