drivers/net/wireless/mwifiex/pcie.h - LeafOS-Devices/android_kernel_samsung_gta4xl - Gitiles

 /* @file mwifiex_pcie.h
  *
  * @brief This file contains definitions for PCI-E interface.
  * driver.
  *
  * Copyright (C) 2011-2014, Marvell International Ltd.
  *
  * This software file (the "File") is distributed by Marvell International
  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
  * (the "License").  You may use, redistribute and/or modify this File in
  * accordance with the terms and conditions of the License, a copy of which
  * is available by writing to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  *
  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  * this warranty disclaimer.
  */

 #ifndef	_MWIFIEX_PCIE_H
 #define	_MWIFIEX_PCIE_H

 #include    <linux/pci.h>
 #include    <linux/pcieport_if.h>
 #include    <linux/interrupt.h>

 #include    "main.h"

 #define PCIE8766_DEFAULT_FW_NAME "mrvl/pcie8766_uapsta.bin"
 #define PCIE8897_DEFAULT_FW_NAME "mrvl/pcie8897_uapsta.bin"

 #define PCIE_VENDOR_ID_MARVELL              (0x11ab)
 #define PCIE_DEVICE_ID_MARVELL_88W8766P		(0x2b30)
 #define PCIE_DEVICE_ID_MARVELL_88W8897		(0x2b38)

 /* Constants for Buffer Descriptor (BD) rings */
 #define MWIFIEX_MAX_TXRX_BD			0x20
 #define MWIFIEX_TXBD_MASK			0x3F
 #define MWIFIEX_RXBD_MASK			0x3F

 #define MWIFIEX_MAX_EVT_BD			0x04
 #define MWIFIEX_EVTBD_MASK			0x07

 /* PCIE INTERNAL REGISTERS */
 #define PCIE_SCRATCH_0_REG				0xC10
 #define PCIE_SCRATCH_1_REG				0xC14
 #define PCIE_CPU_INT_EVENT				0xC18
 #define PCIE_CPU_INT_STATUS				0xC1C
 #define PCIE_HOST_INT_STATUS				0xC30
 #define PCIE_HOST_INT_MASK				0xC34
 #define PCIE_HOST_INT_STATUS_MASK			0xC3C
 #define PCIE_SCRATCH_2_REG				0xC40
 #define PCIE_SCRATCH_3_REG				0xC44
 #define PCIE_SCRATCH_4_REG				0xCD0
 #define PCIE_SCRATCH_5_REG				0xCD4
 #define PCIE_SCRATCH_6_REG				0xCD8
 #define PCIE_SCRATCH_7_REG				0xCDC
 #define PCIE_SCRATCH_8_REG				0xCE0
 #define PCIE_SCRATCH_9_REG				0xCE4
 #define PCIE_SCRATCH_10_REG				0xCE8
 #define PCIE_SCRATCH_11_REG				0xCEC
 #define PCIE_SCRATCH_12_REG				0xCF0
 #define PCIE_RD_DATA_PTR_Q0_Q1                          0xC08C
 #define PCIE_WR_DATA_PTR_Q0_Q1                          0xC05C

 #define CPU_INTR_DNLD_RDY				BIT(0)
 #define CPU_INTR_DOOR_BELL				BIT(1)
 #define CPU_INTR_SLEEP_CFM_DONE			BIT(2)
 #define CPU_INTR_RESET					BIT(3)

 #define HOST_INTR_DNLD_DONE				BIT(0)
 #define HOST_INTR_UPLD_RDY				BIT(1)
 #define HOST_INTR_CMD_DONE				BIT(2)
 #define HOST_INTR_EVENT_RDY				BIT(3)
 #define HOST_INTR_MASK					(HOST_INTR_DNLD_DONE | \
 							 HOST_INTR_UPLD_RDY  | \
 							 HOST_INTR_CMD_DONE  | \
 							 HOST_INTR_EVENT_RDY)

 #define MWIFIEX_BD_FLAG_ROLLOVER_IND			BIT(7)
 #define MWIFIEX_BD_FLAG_FIRST_DESC			BIT(0)
 #define MWIFIEX_BD_FLAG_LAST_DESC			BIT(1)
 #define MWIFIEX_BD_FLAG_SOP				BIT(0)
 #define MWIFIEX_BD_FLAG_EOP				BIT(1)
 #define MWIFIEX_BD_FLAG_XS_SOP				BIT(2)
 #define MWIFIEX_BD_FLAG_XS_EOP				BIT(3)
 #define MWIFIEX_BD_FLAG_EVT_ROLLOVER_IND		BIT(7)
 #define MWIFIEX_BD_FLAG_RX_ROLLOVER_IND			BIT(10)
 #define MWIFIEX_BD_FLAG_TX_START_PTR			BIT(16)
 #define MWIFIEX_BD_FLAG_TX_ROLLOVER_IND			BIT(26)

 /* Max retry number of command write */
 #define MAX_WRITE_IOMEM_RETRY				2
 /* Define PCIE block size for firmware download */
 #define MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD		256
 /* FW awake cookie after FW ready */
 #define FW_AWAKE_COOKIE						(0xAA55AA55)
 #define MWIFIEX_DEF_SLEEP_COOKIE			0xBEEFBEEF
 #define MWIFIEX_MAX_DELAY_COUNT				5

 struct mwifiex_pcie_card_reg {
 	u16 cmd_addr_lo;
 	u16 cmd_addr_hi;
 	u16 fw_status;
 	u16 cmd_size;
 	u16 cmdrsp_addr_lo;
 	u16 cmdrsp_addr_hi;
 	u16 tx_rdptr;
 	u16 tx_wrptr;
 	u16 rx_rdptr;
 	u16 rx_wrptr;
 	u16 evt_rdptr;
 	u16 evt_wrptr;
 	u16 drv_rdy;
 	u16 tx_start_ptr;
 	u32 tx_mask;
 	u32 tx_wrap_mask;
 	u32 rx_mask;
 	u32 rx_wrap_mask;
 	u32 tx_rollover_ind;
 	u32 rx_rollover_ind;
 	u32 evt_rollover_ind;
 	u8 ring_flag_sop;
 	u8 ring_flag_eop;
 	u8 ring_flag_xs_sop;
 	u8 ring_flag_xs_eop;
 	u32 ring_tx_start_ptr;
 	u8 pfu_enabled;
 	u8 sleep_cookie;
 	u16 fw_dump_ctrl;
 	u16 fw_dump_start;
 	u16 fw_dump_end;
 };

 static const struct mwifiex_pcie_card_reg mwifiex_reg_8766 = {
 	.cmd_addr_lo = PCIE_SCRATCH_0_REG,
 	.cmd_addr_hi = PCIE_SCRATCH_1_REG,
 	.cmd_size = PCIE_SCRATCH_2_REG,
 	.fw_status = PCIE_SCRATCH_3_REG,
 	.cmdrsp_addr_lo = PCIE_SCRATCH_4_REG,
 	.cmdrsp_addr_hi = PCIE_SCRATCH_5_REG,
 	.tx_rdptr = PCIE_SCRATCH_6_REG,
 	.tx_wrptr = PCIE_SCRATCH_7_REG,
 	.rx_rdptr = PCIE_SCRATCH_8_REG,
 	.rx_wrptr = PCIE_SCRATCH_9_REG,
 	.evt_rdptr = PCIE_SCRATCH_10_REG,
 	.evt_wrptr = PCIE_SCRATCH_11_REG,
 	.drv_rdy = PCIE_SCRATCH_12_REG,
 	.tx_start_ptr = 0,
 	.tx_mask = MWIFIEX_TXBD_MASK,
 	.tx_wrap_mask = 0,
 	.rx_mask = MWIFIEX_RXBD_MASK,
 	.rx_wrap_mask = 0,
 	.tx_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
 	.rx_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
 	.evt_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
 	.ring_flag_sop = 0,
 	.ring_flag_eop = 0,
 	.ring_flag_xs_sop = 0,
 	.ring_flag_xs_eop = 0,
 	.ring_tx_start_ptr = 0,
 	.pfu_enabled = 0,
 	.sleep_cookie = 1,
 };

 static const struct mwifiex_pcie_card_reg mwifiex_reg_8897 = {
 	.cmd_addr_lo = PCIE_SCRATCH_0_REG,
 	.cmd_addr_hi = PCIE_SCRATCH_1_REG,
 	.cmd_size = PCIE_SCRATCH_2_REG,
 	.fw_status = PCIE_SCRATCH_3_REG,
 	.cmdrsp_addr_lo = PCIE_SCRATCH_4_REG,
 	.cmdrsp_addr_hi = PCIE_SCRATCH_5_REG,
 	.tx_rdptr = PCIE_RD_DATA_PTR_Q0_Q1,
 	.tx_wrptr = PCIE_WR_DATA_PTR_Q0_Q1,
 	.rx_rdptr = PCIE_WR_DATA_PTR_Q0_Q1,
 	.rx_wrptr = PCIE_RD_DATA_PTR_Q0_Q1,
 	.evt_rdptr = PCIE_SCRATCH_10_REG,
 	.evt_wrptr = PCIE_SCRATCH_11_REG,
 	.drv_rdy = PCIE_SCRATCH_12_REG,
 	.tx_start_ptr = 16,
 	.tx_mask = 0x03FF0000,
 	.tx_wrap_mask = 0x07FF0000,
 	.rx_mask = 0x000003FF,
 	.rx_wrap_mask = 0x000007FF,
 	.tx_rollover_ind = MWIFIEX_BD_FLAG_TX_ROLLOVER_IND,
 	.rx_rollover_ind = MWIFIEX_BD_FLAG_RX_ROLLOVER_IND,
 	.evt_rollover_ind = MWIFIEX_BD_FLAG_EVT_ROLLOVER_IND,
 	.ring_flag_sop = MWIFIEX_BD_FLAG_SOP,
 	.ring_flag_eop = MWIFIEX_BD_FLAG_EOP,
 	.ring_flag_xs_sop = MWIFIEX_BD_FLAG_XS_SOP,
 	.ring_flag_xs_eop = MWIFIEX_BD_FLAG_XS_EOP,
 	.ring_tx_start_ptr = MWIFIEX_BD_FLAG_TX_START_PTR,
 	.pfu_enabled = 1,
 	.sleep_cookie = 0,
 	.fw_dump_ctrl = 0xcf4,
 	.fw_dump_start = 0xcf8,
 	.fw_dump_end = 0xcff
 };

 struct mwifiex_pcie_device {
 	const char *firmware;
 	const struct mwifiex_pcie_card_reg *reg;
 	u16 blksz_fw_dl;
 	u16 tx_buf_size;
 	bool supports_fw_dump;
 };

 static const struct mwifiex_pcie_device mwifiex_pcie8766 = {
 	.firmware       = PCIE8766_DEFAULT_FW_NAME,
 	.reg            = &mwifiex_reg_8766,
 	.blksz_fw_dl = MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD,
 	.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
 	.supports_fw_dump = false,
 };

 static const struct mwifiex_pcie_device mwifiex_pcie8897 = {
 	.firmware       = PCIE8897_DEFAULT_FW_NAME,
 	.reg            = &mwifiex_reg_8897,
 	.blksz_fw_dl = MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD,
 	.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
 	.supports_fw_dump = true,
 };

 struct mwifiex_evt_buf_desc {
 	u64 paddr;
 	u16 len;
 	u16 flags;
 } __packed;

 struct mwifiex_pcie_buf_desc {
 	u64 paddr;
 	u16 len;
 	u16 flags;
 } __packed;

 struct mwifiex_pfu_buf_desc {
 	u16 flags;
 	u16 offset;
 	u16 frag_len;
 	u16 len;
 	u64 paddr;
 	u32 reserved;
 } __packed;

 struct pcie_service_card {
 	struct pci_dev *dev;
 	struct mwifiex_adapter *adapter;
 	struct mwifiex_pcie_device pcie;

 	u8 txbd_flush;
 	u32 txbd_wrptr;
 	u32 txbd_rdptr;
 	u32 txbd_ring_size;
 	u8 *txbd_ring_vbase;
 	dma_addr_t txbd_ring_pbase;
 	void *txbd_ring[MWIFIEX_MAX_TXRX_BD];
 	struct sk_buff *tx_buf_list[MWIFIEX_MAX_TXRX_BD];

 	u32 rxbd_wrptr;
 	u32 rxbd_rdptr;
 	u32 rxbd_ring_size;
 	u8 *rxbd_ring_vbase;
 	dma_addr_t rxbd_ring_pbase;
 	void *rxbd_ring[MWIFIEX_MAX_TXRX_BD];
 	struct sk_buff *rx_buf_list[MWIFIEX_MAX_TXRX_BD];

 	u32 evtbd_wrptr;
 	u32 evtbd_rdptr;
 	u32 evtbd_ring_size;
 	u8 *evtbd_ring_vbase;
 	dma_addr_t evtbd_ring_pbase;
 	void *evtbd_ring[MWIFIEX_MAX_EVT_BD];
 	struct sk_buff *evt_buf_list[MWIFIEX_MAX_EVT_BD];

 	struct sk_buff *cmd_buf;
 	struct sk_buff *cmdrsp_buf;
 	u8 *sleep_cookie_vbase;
 	dma_addr_t sleep_cookie_pbase;
 	void __iomem *pci_mmap;
 	void __iomem *pci_mmap1;
 };

 static inline int
 mwifiex_pcie_txbd_empty(struct pcie_service_card *card, u32 rdptr)
 {
 	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;

 	switch (card->dev->device) {
 	case PCIE_DEVICE_ID_MARVELL_88W8766P:
 		if (((card->txbd_wrptr & reg->tx_mask) ==
 		     (rdptr & reg->tx_mask)) &&
 		    ((card->txbd_wrptr & reg->tx_rollover_ind) !=
 		     (rdptr & reg->tx_rollover_ind)))
 			return 1;
 		break;
 	case PCIE_DEVICE_ID_MARVELL_88W8897:
 		if (((card->txbd_wrptr & reg->tx_mask) ==
 		     (rdptr & reg->tx_mask)) &&
 		    ((card->txbd_wrptr & reg->tx_rollover_ind) ==
 			(rdptr & reg->tx_rollover_ind)))
 			return 1;
 		break;
 	}

 	return 0;
 }

 static inline int
 mwifiex_pcie_txbd_not_full(struct pcie_service_card *card)
 {
 	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;

 	switch (card->dev->device) {
 	case PCIE_DEVICE_ID_MARVELL_88W8766P:
 		if (((card->txbd_wrptr & reg->tx_mask) !=
 		     (card->txbd_rdptr & reg->tx_mask)) ||
 		    ((card->txbd_wrptr & reg->tx_rollover_ind) !=
 		     (card->txbd_rdptr & reg->tx_rollover_ind)))
 			return 1;
 		break;
 	case PCIE_DEVICE_ID_MARVELL_88W8897:
 		if (((card->txbd_wrptr & reg->tx_mask) !=
 		     (card->txbd_rdptr & reg->tx_mask)) ||
 		    ((card->txbd_wrptr & reg->tx_rollover_ind) ==
 		     (card->txbd_rdptr & reg->tx_rollover_ind)))
 			return 1;
 		break;
 	}

 	return 0;
 }

 #endif /* _MWIFIEX_PCIE_H */
	/* @file mwifiex_pcie.h
	*
	* @brief This file contains definitions for PCI-E interface.
	* driver.
	*
	* Copyright (C) 2011-2014, Marvell International Ltd.
	*
	* This software file (the "File") is distributed by Marvell International
	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	* (the "License"). You may use, redistribute and/or modify this File in
	* accordance with the terms and conditions of the License, a copy of which
	* is available by writing to the Free Software Foundation, Inc.,
	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	*
	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	* this warranty disclaimer.
	*/

	#ifndef _MWIFIEX_PCIE_H
	#define _MWIFIEX_PCIE_H

	#include <linux/pci.h>
	#include <linux/pcieport_if.h>
	#include <linux/interrupt.h>

	#include "main.h"

	#define PCIE8766_DEFAULT_FW_NAME "mrvl/pcie8766_uapsta.bin"
	#define PCIE8897_DEFAULT_FW_NAME "mrvl/pcie8897_uapsta.bin"

	#define PCIE_VENDOR_ID_MARVELL (0x11ab)
	#define PCIE_DEVICE_ID_MARVELL_88W8766P (0x2b30)
	#define PCIE_DEVICE_ID_MARVELL_88W8897 (0x2b38)

	/* Constants for Buffer Descriptor (BD) rings */
	#define MWIFIEX_MAX_TXRX_BD 0x20
	#define MWIFIEX_TXBD_MASK 0x3F
	#define MWIFIEX_RXBD_MASK 0x3F

	#define MWIFIEX_MAX_EVT_BD 0x04
	#define MWIFIEX_EVTBD_MASK 0x07

	/* PCIE INTERNAL REGISTERS */
	#define PCIE_SCRATCH_0_REG 0xC10
	#define PCIE_SCRATCH_1_REG 0xC14
	#define PCIE_CPU_INT_EVENT 0xC18
	#define PCIE_CPU_INT_STATUS 0xC1C
	#define PCIE_HOST_INT_STATUS 0xC30
	#define PCIE_HOST_INT_MASK 0xC34
	#define PCIE_HOST_INT_STATUS_MASK 0xC3C
	#define PCIE_SCRATCH_2_REG 0xC40
	#define PCIE_SCRATCH_3_REG 0xC44
	#define PCIE_SCRATCH_4_REG 0xCD0
	#define PCIE_SCRATCH_5_REG 0xCD4
	#define PCIE_SCRATCH_6_REG 0xCD8
	#define PCIE_SCRATCH_7_REG 0xCDC
	#define PCIE_SCRATCH_8_REG 0xCE0
	#define PCIE_SCRATCH_9_REG 0xCE4
	#define PCIE_SCRATCH_10_REG 0xCE8
	#define PCIE_SCRATCH_11_REG 0xCEC
	#define PCIE_SCRATCH_12_REG 0xCF0
	#define PCIE_RD_DATA_PTR_Q0_Q1 0xC08C
	#define PCIE_WR_DATA_PTR_Q0_Q1 0xC05C

	#define CPU_INTR_DNLD_RDY BIT(0)
	#define CPU_INTR_DOOR_BELL BIT(1)
	#define CPU_INTR_SLEEP_CFM_DONE BIT(2)
	#define CPU_INTR_RESET BIT(3)

	#define HOST_INTR_DNLD_DONE BIT(0)
	#define HOST_INTR_UPLD_RDY BIT(1)
	#define HOST_INTR_CMD_DONE BIT(2)
	#define HOST_INTR_EVENT_RDY BIT(3)
	#define HOST_INTR_MASK (HOST_INTR_DNLD_DONE \| \
	HOST_INTR_UPLD_RDY \| \
	HOST_INTR_CMD_DONE \| \
	HOST_INTR_EVENT_RDY)

	#define MWIFIEX_BD_FLAG_ROLLOVER_IND BIT(7)
	#define MWIFIEX_BD_FLAG_FIRST_DESC BIT(0)
	#define MWIFIEX_BD_FLAG_LAST_DESC BIT(1)
	#define MWIFIEX_BD_FLAG_SOP BIT(0)
	#define MWIFIEX_BD_FLAG_EOP BIT(1)
	#define MWIFIEX_BD_FLAG_XS_SOP BIT(2)
	#define MWIFIEX_BD_FLAG_XS_EOP BIT(3)
	#define MWIFIEX_BD_FLAG_EVT_ROLLOVER_IND BIT(7)
	#define MWIFIEX_BD_FLAG_RX_ROLLOVER_IND BIT(10)
	#define MWIFIEX_BD_FLAG_TX_START_PTR BIT(16)
	#define MWIFIEX_BD_FLAG_TX_ROLLOVER_IND BIT(26)

	/* Max retry number of command write */
	#define MAX_WRITE_IOMEM_RETRY 2
	/* Define PCIE block size for firmware download */
	#define MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD 256
	/* FW awake cookie after FW ready */
	#define FW_AWAKE_COOKIE (0xAA55AA55)
	#define MWIFIEX_DEF_SLEEP_COOKIE 0xBEEFBEEF
	#define MWIFIEX_MAX_DELAY_COUNT 5

	struct mwifiex_pcie_card_reg {
	u16 cmd_addr_lo;
	u16 cmd_addr_hi;
	u16 fw_status;
	u16 cmd_size;
	u16 cmdrsp_addr_lo;
	u16 cmdrsp_addr_hi;
	u16 tx_rdptr;
	u16 tx_wrptr;
	u16 rx_rdptr;
	u16 rx_wrptr;
	u16 evt_rdptr;
	u16 evt_wrptr;
	u16 drv_rdy;
	u16 tx_start_ptr;
	u32 tx_mask;
	u32 tx_wrap_mask;
	u32 rx_mask;
	u32 rx_wrap_mask;
	u32 tx_rollover_ind;
	u32 rx_rollover_ind;
	u32 evt_rollover_ind;
	u8 ring_flag_sop;
	u8 ring_flag_eop;
	u8 ring_flag_xs_sop;
	u8 ring_flag_xs_eop;
	u32 ring_tx_start_ptr;
	u8 pfu_enabled;
	u8 sleep_cookie;
	u16 fw_dump_ctrl;
	u16 fw_dump_start;
	u16 fw_dump_end;
	};

	static const struct mwifiex_pcie_card_reg mwifiex_reg_8766 = {
	.cmd_addr_lo = PCIE_SCRATCH_0_REG,
	.cmd_addr_hi = PCIE_SCRATCH_1_REG,
	.cmd_size = PCIE_SCRATCH_2_REG,
	.fw_status = PCIE_SCRATCH_3_REG,
	.cmdrsp_addr_lo = PCIE_SCRATCH_4_REG,
	.cmdrsp_addr_hi = PCIE_SCRATCH_5_REG,
	.tx_rdptr = PCIE_SCRATCH_6_REG,
	.tx_wrptr = PCIE_SCRATCH_7_REG,
	.rx_rdptr = PCIE_SCRATCH_8_REG,
	.rx_wrptr = PCIE_SCRATCH_9_REG,
	.evt_rdptr = PCIE_SCRATCH_10_REG,
	.evt_wrptr = PCIE_SCRATCH_11_REG,
	.drv_rdy = PCIE_SCRATCH_12_REG,
	.tx_start_ptr = 0,
	.tx_mask = MWIFIEX_TXBD_MASK,
	.tx_wrap_mask = 0,
	.rx_mask = MWIFIEX_RXBD_MASK,
	.rx_wrap_mask = 0,
	.tx_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
	.rx_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
	.evt_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
	.ring_flag_sop = 0,
	.ring_flag_eop = 0,
	.ring_flag_xs_sop = 0,
	.ring_flag_xs_eop = 0,
	.ring_tx_start_ptr = 0,
	.pfu_enabled = 0,
	.sleep_cookie = 1,
	};

	static const struct mwifiex_pcie_card_reg mwifiex_reg_8897 = {
	.cmd_addr_lo = PCIE_SCRATCH_0_REG,
	.cmd_addr_hi = PCIE_SCRATCH_1_REG,
	.cmd_size = PCIE_SCRATCH_2_REG,
	.fw_status = PCIE_SCRATCH_3_REG,
	.cmdrsp_addr_lo = PCIE_SCRATCH_4_REG,
	.cmdrsp_addr_hi = PCIE_SCRATCH_5_REG,
	.tx_rdptr = PCIE_RD_DATA_PTR_Q0_Q1,
	.tx_wrptr = PCIE_WR_DATA_PTR_Q0_Q1,
	.rx_rdptr = PCIE_WR_DATA_PTR_Q0_Q1,
	.rx_wrptr = PCIE_RD_DATA_PTR_Q0_Q1,
	.evt_rdptr = PCIE_SCRATCH_10_REG,
	.evt_wrptr = PCIE_SCRATCH_11_REG,
	.drv_rdy = PCIE_SCRATCH_12_REG,
	.tx_start_ptr = 16,
	.tx_mask = 0x03FF0000,
	.tx_wrap_mask = 0x07FF0000,
	.rx_mask = 0x000003FF,
	.rx_wrap_mask = 0x000007FF,
	.tx_rollover_ind = MWIFIEX_BD_FLAG_TX_ROLLOVER_IND,
	.rx_rollover_ind = MWIFIEX_BD_FLAG_RX_ROLLOVER_IND,
	.evt_rollover_ind = MWIFIEX_BD_FLAG_EVT_ROLLOVER_IND,
	.ring_flag_sop = MWIFIEX_BD_FLAG_SOP,
	.ring_flag_eop = MWIFIEX_BD_FLAG_EOP,
	.ring_flag_xs_sop = MWIFIEX_BD_FLAG_XS_SOP,
	.ring_flag_xs_eop = MWIFIEX_BD_FLAG_XS_EOP,
	.ring_tx_start_ptr = MWIFIEX_BD_FLAG_TX_START_PTR,
	.pfu_enabled = 1,
	.sleep_cookie = 0,
	.fw_dump_ctrl = 0xcf4,
	.fw_dump_start = 0xcf8,
	.fw_dump_end = 0xcff
	};

	struct mwifiex_pcie_device {
	const char *firmware;
	const struct mwifiex_pcie_card_reg *reg;
	u16 blksz_fw_dl;
	u16 tx_buf_size;
	bool supports_fw_dump;
	};

	static const struct mwifiex_pcie_device mwifiex_pcie8766 = {
	.firmware = PCIE8766_DEFAULT_FW_NAME,
	.reg = &mwifiex_reg_8766,
	.blksz_fw_dl = MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD,
	.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
	.supports_fw_dump = false,
	};

	static const struct mwifiex_pcie_device mwifiex_pcie8897 = {
	.firmware = PCIE8897_DEFAULT_FW_NAME,
	.reg = &mwifiex_reg_8897,
	.blksz_fw_dl = MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD,
	.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
	.supports_fw_dump = true,
	};

	struct mwifiex_evt_buf_desc {
	u64 paddr;
	u16 len;
	u16 flags;
	} __packed;

	struct mwifiex_pcie_buf_desc {
	u64 paddr;
	u16 len;
	u16 flags;
	} __packed;

	struct mwifiex_pfu_buf_desc {
	u16 flags;
	u16 offset;
	u16 frag_len;
	u16 len;
	u64 paddr;
	u32 reserved;
	} __packed;

	struct pcie_service_card {
	struct pci_dev *dev;
	struct mwifiex_adapter *adapter;
	struct mwifiex_pcie_device pcie;

	u8 txbd_flush;
	u32 txbd_wrptr;
	u32 txbd_rdptr;
	u32 txbd_ring_size;
	u8 *txbd_ring_vbase;
	dma_addr_t txbd_ring_pbase;
	void *txbd_ring[MWIFIEX_MAX_TXRX_BD];
	struct sk_buff *tx_buf_list[MWIFIEX_MAX_TXRX_BD];

	u32 rxbd_wrptr;
	u32 rxbd_rdptr;
	u32 rxbd_ring_size;
	u8 *rxbd_ring_vbase;
	dma_addr_t rxbd_ring_pbase;
	void *rxbd_ring[MWIFIEX_MAX_TXRX_BD];
	struct sk_buff *rx_buf_list[MWIFIEX_MAX_TXRX_BD];

	u32 evtbd_wrptr;
	u32 evtbd_rdptr;
	u32 evtbd_ring_size;
	u8 *evtbd_ring_vbase;
	dma_addr_t evtbd_ring_pbase;
	void *evtbd_ring[MWIFIEX_MAX_EVT_BD];
	struct sk_buff *evt_buf_list[MWIFIEX_MAX_EVT_BD];

	struct sk_buff *cmd_buf;
	struct sk_buff *cmdrsp_buf;
	u8 *sleep_cookie_vbase;
	dma_addr_t sleep_cookie_pbase;
	void __iomem *pci_mmap;
	void __iomem *pci_mmap1;
	};

	static inline int
	mwifiex_pcie_txbd_empty(struct pcie_service_card *card, u32 rdptr)
	{
	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;

	switch (card->dev->device) {
	case PCIE_DEVICE_ID_MARVELL_88W8766P:
	if (((card->txbd_wrptr & reg->tx_mask) ==
	(rdptr & reg->tx_mask)) &&
	((card->txbd_wrptr & reg->tx_rollover_ind) !=
	(rdptr & reg->tx_rollover_ind)))
	return 1;
	break;
	case PCIE_DEVICE_ID_MARVELL_88W8897:
	if (((card->txbd_wrptr & reg->tx_mask) ==
	(rdptr & reg->tx_mask)) &&
	((card->txbd_wrptr & reg->tx_rollover_ind) ==
	(rdptr & reg->tx_rollover_ind)))
	return 1;
	break;
	}

	return 0;
	}

	static inline int
	mwifiex_pcie_txbd_not_full(struct pcie_service_card *card)
	{
	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;

	switch (card->dev->device) {
	case PCIE_DEVICE_ID_MARVELL_88W8766P:
	if (((card->txbd_wrptr & reg->tx_mask) !=
	(card->txbd_rdptr & reg->tx_mask)) \|\|
	((card->txbd_wrptr & reg->tx_rollover_ind) !=
	(card->txbd_rdptr & reg->tx_rollover_ind)))
	return 1;
	break;
	case PCIE_DEVICE_ID_MARVELL_88W8897:
	if (((card->txbd_wrptr & reg->tx_mask) !=
	(card->txbd_rdptr & reg->tx_mask)) \|\|
	((card->txbd_wrptr & reg->tx_rollover_ind) ==
	(card->txbd_rdptr & reg->tx_rollover_ind)))
	return 1;
	break;
	}

	return 0;
	}

	#endif /* _MWIFIEX_PCIE_H */