drivers/net/wireless/mwifiex/sdio.h - maze/linux - Git at Google

 /*
  * Marvell Wireless LAN device driver: SDIO specific definitions
  *
  * Copyright (C) 2011, 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_SDIO_H
 #define	_MWIFIEX_SDIO_H


 #include <linux/mmc/sdio.h>
 #include <linux/mmc/sdio_ids.h>
 #include <linux/mmc/sdio_func.h>
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>

 #include "main.h"

 #define SD8786_DEFAULT_FW_NAME "mrvl/sd8786_uapsta.bin"
 #define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta.bin"
 #define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta.bin"
 #define SD8897_DEFAULT_FW_NAME "mrvl/sd8897_uapsta.bin"

 #define BLOCK_MODE	1
 #define BYTE_MODE	0

 #define REG_PORT			0

 #define MWIFIEX_SDIO_IO_PORT_MASK		0xfffff

 #define MWIFIEX_SDIO_BYTE_MODE_MASK	0x80000000

 #define SDIO_MPA_ADDR_BASE		0x1000
 #define CTRL_PORT			0
 #define CTRL_PORT_MASK			0x0001

 #define CMD_PORT_UPLD_INT_MASK		(0x1U<<6)
 #define CMD_PORT_DNLD_INT_MASK		(0x1U<<7)
 #define HOST_TERM_CMD53			(0x1U << 2)
 #define REG_PORT			0
 #define MEM_PORT			0x10000
 #define CMD_RD_LEN_0			0xB4
 #define CMD_RD_LEN_1			0xB5
 #define CARD_CONFIG_2_1_REG             0xCD
 #define CMD53_NEW_MODE			(0x1U << 0)
 #define CMD_CONFIG_0			0xB8
 #define CMD_PORT_RD_LEN_EN		(0x1U << 2)
 #define CMD_CONFIG_1			0xB9
 #define CMD_PORT_AUTO_EN		(0x1U << 0)
 #define CMD_PORT_SLCT			0x8000
 #define UP_LD_CMD_PORT_HOST_INT_STATUS	(0x40U)
 #define DN_LD_CMD_PORT_HOST_INT_STATUS	(0x80U)

 #define SDIO_MP_TX_AGGR_DEF_BUF_SIZE        (8192)	/* 8K */

 /* Multi port RX aggregation buffer size */
 #define SDIO_MP_RX_AGGR_DEF_BUF_SIZE        (16384)	/* 16K */

 /* Misc. Config Register : Auto Re-enable interrupts */
 #define AUTO_RE_ENABLE_INT              BIT(4)

 /* Host Control Registers */
 /* Host Control Registers : I/O port 0 */
 #define IO_PORT_0_REG			0x78
 /* Host Control Registers : I/O port 1 */
 #define IO_PORT_1_REG			0x79
 /* Host Control Registers : I/O port 2 */
 #define IO_PORT_2_REG			0x7A

 /* Host Control Registers : Configuration */
 #define CONFIGURATION_REG		0x00
 /* Host Control Registers : Host power up */
 #define HOST_POWER_UP			(0x1U << 1)

 /* Host Control Registers : Host interrupt mask */
 #define HOST_INT_MASK_REG		0x02
 /* Host Control Registers : Upload host interrupt mask */
 #define UP_LD_HOST_INT_MASK		(0x1U)
 /* Host Control Registers : Download host interrupt mask */
 #define DN_LD_HOST_INT_MASK		(0x2U)

 /* Host Control Registers : Host interrupt status */
 #define HOST_INTSTATUS_REG		0x03
 /* Host Control Registers : Upload host interrupt status */
 #define UP_LD_HOST_INT_STATUS		(0x1U)
 /* Host Control Registers : Download host interrupt status */
 #define DN_LD_HOST_INT_STATUS		(0x2U)

 /* Host Control Registers : Host interrupt RSR */
 #define HOST_INT_RSR_REG		0x01

 /* Host Control Registers : Host interrupt status */
 #define HOST_INT_STATUS_REG		0x28

 /* Card Control Registers : Card I/O ready */
 #define CARD_IO_READY                   (0x1U << 3)
 /* Card Control Registers : Download card ready */
 #define DN_LD_CARD_RDY                  (0x1U << 0)

 /* Max retry number of CMD53 write */
 #define MAX_WRITE_IOMEM_RETRY		2

 /* SDIO Tx aggregation in progress ? */
 #define MP_TX_AGGR_IN_PROGRESS(a) (a->mpa_tx.pkt_cnt > 0)

 /* SDIO Tx aggregation buffer room for next packet ? */
 #define MP_TX_AGGR_BUF_HAS_ROOM(a, len) ((a->mpa_tx.buf_len+len)	\
 						<= a->mpa_tx.buf_size)

 /* Copy current packet (SDIO Tx aggregation buffer) to SDIO buffer */
 #define MP_TX_AGGR_BUF_PUT(a, payload, pkt_len, port) do {		\
 	memmove(&a->mpa_tx.buf[a->mpa_tx.buf_len],			\
 			payload, pkt_len);				\
 	a->mpa_tx.buf_len += pkt_len;					\
 	if (!a->mpa_tx.pkt_cnt)						\
 		a->mpa_tx.start_port = port;				\
 	if (a->mpa_tx.start_port <= port)				\
 		a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt));		\
 	else								\
 		a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt+1+		\
 						(a->max_ports -	\
 						a->mp_end_port)));	\
 	a->mpa_tx.pkt_cnt++;						\
 } while (0)

 /* SDIO Tx aggregation limit ? */
 #define MP_TX_AGGR_PKT_LIMIT_REACHED(a)					\
 			(a->mpa_tx.pkt_cnt == a->mpa_tx.pkt_aggr_limit)

 /* Reset SDIO Tx aggregation buffer parameters */
 #define MP_TX_AGGR_BUF_RESET(a) do {					\
 	a->mpa_tx.pkt_cnt = 0;						\
 	a->mpa_tx.buf_len = 0;						\
 	a->mpa_tx.ports = 0;						\
 	a->mpa_tx.start_port = 0;					\
 } while (0)

 /* SDIO Rx aggregation limit ? */
 #define MP_RX_AGGR_PKT_LIMIT_REACHED(a)					\
 			(a->mpa_rx.pkt_cnt == a->mpa_rx.pkt_aggr_limit)

 /* SDIO Rx aggregation in progress ? */
 #define MP_RX_AGGR_IN_PROGRESS(a) (a->mpa_rx.pkt_cnt > 0)

 /* SDIO Rx aggregation buffer room for next packet ? */
 #define MP_RX_AGGR_BUF_HAS_ROOM(a, rx_len)				\
 			((a->mpa_rx.buf_len+rx_len) <= a->mpa_rx.buf_size)

 /* Reset SDIO Rx aggregation buffer parameters */
 #define MP_RX_AGGR_BUF_RESET(a) do {					\
 	a->mpa_rx.pkt_cnt = 0;						\
 	a->mpa_rx.buf_len = 0;						\
 	a->mpa_rx.ports = 0;						\
 	a->mpa_rx.start_port = 0;					\
 } while (0)

 /* data structure for SDIO MPA TX */
 struct mwifiex_sdio_mpa_tx {
 	/* multiport tx aggregation buffer pointer */
 	u8 *buf;
 	u32 buf_len;
 	u32 pkt_cnt;
 	u32 ports;
 	u16 start_port;
 	u8 enabled;
 	u32 buf_size;
 	u32 pkt_aggr_limit;
 };

 struct mwifiex_sdio_mpa_rx {
 	u8 *buf;
 	u32 buf_len;
 	u32 pkt_cnt;
 	u32 ports;
 	u16 start_port;

 	struct sk_buff **skb_arr;
 	u32 *len_arr;

 	u8 enabled;
 	u32 buf_size;
 	u32 pkt_aggr_limit;
 };

 int mwifiex_bus_register(void);
 void mwifiex_bus_unregister(void);

 struct mwifiex_sdio_card_reg {
 	u8 start_rd_port;
 	u8 start_wr_port;
 	u8 base_0_reg;
 	u8 base_1_reg;
 	u8 poll_reg;
 	u8 host_int_enable;
 	u8 status_reg_0;
 	u8 status_reg_1;
 	u8 sdio_int_mask;
 	u32 data_port_mask;
 	u8 max_mp_regs;
 	u8 rd_bitmap_l;
 	u8 rd_bitmap_u;
 	u8 rd_bitmap_1l;
 	u8 rd_bitmap_1u;
 	u8 wr_bitmap_l;
 	u8 wr_bitmap_u;
 	u8 wr_bitmap_1l;
 	u8 wr_bitmap_1u;
 	u8 rd_len_p0_l;
 	u8 rd_len_p0_u;
 	u8 card_misc_cfg_reg;
 };

 struct sdio_mmc_card {
 	struct sdio_func *func;
 	struct mwifiex_adapter *adapter;

 	const char *firmware;
 	const struct mwifiex_sdio_card_reg *reg;
 	u8 max_ports;
 	u8 mp_agg_pkt_limit;
 	bool supports_sdio_new_mode;
 	bool has_control_mask;

 	u32 mp_rd_bitmap;
 	u32 mp_wr_bitmap;

 	u16 mp_end_port;
 	u32 mp_data_port_mask;

 	u8 curr_rd_port;
 	u8 curr_wr_port;

 	u8 *mp_regs;

 	struct mwifiex_sdio_mpa_tx mpa_tx;
 	struct mwifiex_sdio_mpa_rx mpa_rx;
 };

 struct mwifiex_sdio_device {
 	const char *firmware;
 	const struct mwifiex_sdio_card_reg *reg;
 	u8 max_ports;
 	u8 mp_agg_pkt_limit;
 	bool supports_sdio_new_mode;
 	bool has_control_mask;
 };

 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = {
 	.start_rd_port = 1,
 	.start_wr_port = 1,
 	.base_0_reg = 0x0040,
 	.base_1_reg = 0x0041,
 	.poll_reg = 0x30,
 	.host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK,
 	.status_reg_0 = 0x60,
 	.status_reg_1 = 0x61,
 	.sdio_int_mask = 0x3f,
 	.data_port_mask = 0x0000fffe,
 	.max_mp_regs = 64,
 	.rd_bitmap_l = 0x04,
 	.rd_bitmap_u = 0x05,
 	.wr_bitmap_l = 0x06,
 	.wr_bitmap_u = 0x07,
 	.rd_len_p0_l = 0x08,
 	.rd_len_p0_u = 0x09,
 	.card_misc_cfg_reg = 0x6c,
 };

 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8897 = {
 	.start_rd_port = 0,
 	.start_wr_port = 0,
 	.base_0_reg = 0x60,
 	.base_1_reg = 0x61,
 	.poll_reg = 0x50,
 	.host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
 			CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
 	.status_reg_0 = 0xc0,
 	.status_reg_1 = 0xc1,
 	.sdio_int_mask = 0xff,
 	.data_port_mask = 0xffffffff,
 	.max_mp_regs = 184,
 	.rd_bitmap_l = 0x04,
 	.rd_bitmap_u = 0x05,
 	.rd_bitmap_1l = 0x06,
 	.rd_bitmap_1u = 0x07,
 	.wr_bitmap_l = 0x08,
 	.wr_bitmap_u = 0x09,
 	.wr_bitmap_1l = 0x0a,
 	.wr_bitmap_1u = 0x0b,
 	.rd_len_p0_l = 0x0c,
 	.rd_len_p0_u = 0x0d,
 	.card_misc_cfg_reg = 0xcc,
 };

 static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = {
 	.firmware = SD8786_DEFAULT_FW_NAME,
 	.reg = &mwifiex_reg_sd87xx,
 	.max_ports = 16,
 	.mp_agg_pkt_limit = 8,
 	.supports_sdio_new_mode = false,
 	.has_control_mask = true,
 };

 static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = {
 	.firmware = SD8787_DEFAULT_FW_NAME,
 	.reg = &mwifiex_reg_sd87xx,
 	.max_ports = 16,
 	.mp_agg_pkt_limit = 8,
 	.supports_sdio_new_mode = false,
 	.has_control_mask = true,
 };

 static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = {
 	.firmware = SD8797_DEFAULT_FW_NAME,
 	.reg = &mwifiex_reg_sd87xx,
 	.max_ports = 16,
 	.mp_agg_pkt_limit = 8,
 	.supports_sdio_new_mode = false,
 	.has_control_mask = true,
 };

 static const struct mwifiex_sdio_device mwifiex_sdio_sd8897 = {
 	.firmware = SD8897_DEFAULT_FW_NAME,
 	.reg = &mwifiex_reg_sd8897,
 	.max_ports = 32,
 	.mp_agg_pkt_limit = 16,
 	.supports_sdio_new_mode = true,
 	.has_control_mask = false,
 };

 /*
  * .cmdrsp_complete handler
  */
 static inline int mwifiex_sdio_cmdrsp_complete(struct mwifiex_adapter *adapter,
 					       struct sk_buff *skb)
 {
 	dev_kfree_skb_any(skb);
 	return 0;
 }

 /*
  * .event_complete handler
  */
 static inline int mwifiex_sdio_event_complete(struct mwifiex_adapter *adapter,
 					      struct sk_buff *skb)
 {
 	dev_kfree_skb_any(skb);
 	return 0;
 }

 static inline bool
 mp_rx_aggr_port_limit_reached(struct sdio_mmc_card *card)
 {
 	u8 tmp;

 	if (card->curr_rd_port < card->mpa_rx.start_port) {
 		if (card->supports_sdio_new_mode)
 			tmp = card->mp_end_port >> 1;
 		else
 			tmp = card->mp_agg_pkt_limit;

 		if (((card->max_ports - card->mpa_rx.start_port) +
 		    card->curr_rd_port) >= tmp)
 			return true;
 	}

 	if (!card->supports_sdio_new_mode)
 		return false;

 	if ((card->curr_rd_port - card->mpa_rx.start_port) >=
 	    (card->mp_end_port >> 1))
 		return true;

 	return false;
 }

 static inline bool
 mp_tx_aggr_port_limit_reached(struct sdio_mmc_card *card)
 {
 	u16 tmp;

 	if (card->curr_wr_port < card->mpa_tx.start_port) {
 		if (card->supports_sdio_new_mode)
 			tmp = card->mp_end_port >> 1;
 		else
 			tmp = card->mp_agg_pkt_limit;

 		if (((card->max_ports - card->mpa_tx.start_port) +
 		    card->curr_wr_port) >= tmp)
 			return true;
 	}

 	if (!card->supports_sdio_new_mode)
 		return false;

 	if ((card->curr_wr_port - card->mpa_tx.start_port) >=
 	    (card->mp_end_port >> 1))
 		return true;

 	return false;
 }

 /* Prepare to copy current packet from card to SDIO Rx aggregation buffer */
 static inline void mp_rx_aggr_setup(struct sdio_mmc_card *card,
 				    struct sk_buff *skb, u8 port)
 {
 	card->mpa_rx.buf_len += skb->len;

 	if (!card->mpa_rx.pkt_cnt)
 		card->mpa_rx.start_port = port;

 	if (card->supports_sdio_new_mode) {
 		card->mpa_rx.ports |= (1 << port);
 	} else {
 		if (card->mpa_rx.start_port <= port)
 			card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt);
 		else
 			card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt + 1);
 	}
 	card->mpa_rx.skb_arr[card->mpa_rx.pkt_cnt] = skb;
 	card->mpa_rx.len_arr[card->mpa_rx.pkt_cnt] = skb->len;
 	card->mpa_rx.pkt_cnt++;
 }
 #endif /* _MWIFIEX_SDIO_H */
	/*
	* Marvell Wireless LAN device driver: SDIO specific definitions
	*
	* Copyright (C) 2011, 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_SDIO_H
	#define _MWIFIEX_SDIO_H


	#include <linux/mmc/sdio.h>
	#include <linux/mmc/sdio_ids.h>
	#include <linux/mmc/sdio_func.h>
	#include <linux/mmc/card.h>
	#include <linux/mmc/host.h>

	#include "main.h"

	#define SD8786_DEFAULT_FW_NAME "mrvl/sd8786_uapsta.bin"
	#define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta.bin"
	#define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta.bin"
	#define SD8897_DEFAULT_FW_NAME "mrvl/sd8897_uapsta.bin"

	#define BLOCK_MODE 1
	#define BYTE_MODE 0

	#define REG_PORT 0

	#define MWIFIEX_SDIO_IO_PORT_MASK 0xfffff

	#define MWIFIEX_SDIO_BYTE_MODE_MASK 0x80000000

	#define SDIO_MPA_ADDR_BASE 0x1000
	#define CTRL_PORT 0
	#define CTRL_PORT_MASK 0x0001

	#define CMD_PORT_UPLD_INT_MASK (0x1U<<6)
	#define CMD_PORT_DNLD_INT_MASK (0x1U<<7)
	#define HOST_TERM_CMD53 (0x1U << 2)
	#define REG_PORT 0
	#define MEM_PORT 0x10000
	#define CMD_RD_LEN_0 0xB4
	#define CMD_RD_LEN_1 0xB5
	#define CARD_CONFIG_2_1_REG 0xCD
	#define CMD53_NEW_MODE (0x1U << 0)
	#define CMD_CONFIG_0 0xB8
	#define CMD_PORT_RD_LEN_EN (0x1U << 2)
	#define CMD_CONFIG_1 0xB9
	#define CMD_PORT_AUTO_EN (0x1U << 0)
	#define CMD_PORT_SLCT 0x8000
	#define UP_LD_CMD_PORT_HOST_INT_STATUS (0x40U)
	#define DN_LD_CMD_PORT_HOST_INT_STATUS (0x80U)

	#define SDIO_MP_TX_AGGR_DEF_BUF_SIZE (8192) /* 8K */

	/* Multi port RX aggregation buffer size */
	#define SDIO_MP_RX_AGGR_DEF_BUF_SIZE (16384) /* 16K */

	/* Misc. Config Register : Auto Re-enable interrupts */
	#define AUTO_RE_ENABLE_INT BIT(4)

	/* Host Control Registers */
	/* Host Control Registers : I/O port 0 */
	#define IO_PORT_0_REG 0x78
	/* Host Control Registers : I/O port 1 */
	#define IO_PORT_1_REG 0x79
	/* Host Control Registers : I/O port 2 */
	#define IO_PORT_2_REG 0x7A

	/* Host Control Registers : Configuration */
	#define CONFIGURATION_REG 0x00
	/* Host Control Registers : Host power up */
	#define HOST_POWER_UP (0x1U << 1)

	/* Host Control Registers : Host interrupt mask */
	#define HOST_INT_MASK_REG 0x02
	/* Host Control Registers : Upload host interrupt mask */
	#define UP_LD_HOST_INT_MASK (0x1U)
	/* Host Control Registers : Download host interrupt mask */
	#define DN_LD_HOST_INT_MASK (0x2U)

	/* Host Control Registers : Host interrupt status */
	#define HOST_INTSTATUS_REG 0x03
	/* Host Control Registers : Upload host interrupt status */
	#define UP_LD_HOST_INT_STATUS (0x1U)
	/* Host Control Registers : Download host interrupt status */
	#define DN_LD_HOST_INT_STATUS (0x2U)

	/* Host Control Registers : Host interrupt RSR */
	#define HOST_INT_RSR_REG 0x01

	/* Host Control Registers : Host interrupt status */
	#define HOST_INT_STATUS_REG 0x28

	/* Card Control Registers : Card I/O ready */
	#define CARD_IO_READY (0x1U << 3)
	/* Card Control Registers : Download card ready */
	#define DN_LD_CARD_RDY (0x1U << 0)

	/* Max retry number of CMD53 write */
	#define MAX_WRITE_IOMEM_RETRY 2

	/* SDIO Tx aggregation in progress ? */
	#define MP_TX_AGGR_IN_PROGRESS(a) (a->mpa_tx.pkt_cnt > 0)

	/* SDIO Tx aggregation buffer room for next packet ? */
	#define MP_TX_AGGR_BUF_HAS_ROOM(a, len) ((a->mpa_tx.buf_len+len) \
	<= a->mpa_tx.buf_size)

	/* Copy current packet (SDIO Tx aggregation buffer) to SDIO buffer */
	#define MP_TX_AGGR_BUF_PUT(a, payload, pkt_len, port) do { \
	memmove(&a->mpa_tx.buf[a->mpa_tx.buf_len], \
	payload, pkt_len); \
	a->mpa_tx.buf_len += pkt_len; \
	if (!a->mpa_tx.pkt_cnt) \
	a->mpa_tx.start_port = port; \
	if (a->mpa_tx.start_port <= port) \
	a->mpa_tx.ports \|= (1<<(a->mpa_tx.pkt_cnt)); \
	else \
	a->mpa_tx.ports \|= (1<<(a->mpa_tx.pkt_cnt+1+ \
	(a->max_ports - \
	a->mp_end_port))); \
	a->mpa_tx.pkt_cnt++; \
	} while (0)

	/* SDIO Tx aggregation limit ? */
	#define MP_TX_AGGR_PKT_LIMIT_REACHED(a) \
	(a->mpa_tx.pkt_cnt == a->mpa_tx.pkt_aggr_limit)

	/* Reset SDIO Tx aggregation buffer parameters */
	#define MP_TX_AGGR_BUF_RESET(a) do { \
	a->mpa_tx.pkt_cnt = 0; \
	a->mpa_tx.buf_len = 0; \
	a->mpa_tx.ports = 0; \
	a->mpa_tx.start_port = 0; \
	} while (0)

	/* SDIO Rx aggregation limit ? */
	#define MP_RX_AGGR_PKT_LIMIT_REACHED(a) \
	(a->mpa_rx.pkt_cnt == a->mpa_rx.pkt_aggr_limit)

	/* SDIO Rx aggregation in progress ? */
	#define MP_RX_AGGR_IN_PROGRESS(a) (a->mpa_rx.pkt_cnt > 0)

	/* SDIO Rx aggregation buffer room for next packet ? */
	#define MP_RX_AGGR_BUF_HAS_ROOM(a, rx_len) \
	((a->mpa_rx.buf_len+rx_len) <= a->mpa_rx.buf_size)

	/* Reset SDIO Rx aggregation buffer parameters */
	#define MP_RX_AGGR_BUF_RESET(a) do { \
	a->mpa_rx.pkt_cnt = 0; \
	a->mpa_rx.buf_len = 0; \
	a->mpa_rx.ports = 0; \
	a->mpa_rx.start_port = 0; \
	} while (0)

	/* data structure for SDIO MPA TX */
	struct mwifiex_sdio_mpa_tx {
	/* multiport tx aggregation buffer pointer */
	u8 *buf;
	u32 buf_len;
	u32 pkt_cnt;
	u32 ports;
	u16 start_port;
	u8 enabled;
	u32 buf_size;
	u32 pkt_aggr_limit;
	};

	struct mwifiex_sdio_mpa_rx {
	u8 *buf;
	u32 buf_len;
	u32 pkt_cnt;
	u32 ports;
	u16 start_port;

	struct sk_buff **skb_arr;
	u32 *len_arr;

	u8 enabled;
	u32 buf_size;
	u32 pkt_aggr_limit;
	};

	int mwifiex_bus_register(void);
	void mwifiex_bus_unregister(void);

	struct mwifiex_sdio_card_reg {
	u8 start_rd_port;
	u8 start_wr_port;
	u8 base_0_reg;
	u8 base_1_reg;
	u8 poll_reg;
	u8 host_int_enable;
	u8 status_reg_0;
	u8 status_reg_1;
	u8 sdio_int_mask;
	u32 data_port_mask;
	u8 max_mp_regs;
	u8 rd_bitmap_l;
	u8 rd_bitmap_u;
	u8 rd_bitmap_1l;
	u8 rd_bitmap_1u;
	u8 wr_bitmap_l;
	u8 wr_bitmap_u;
	u8 wr_bitmap_1l;
	u8 wr_bitmap_1u;
	u8 rd_len_p0_l;
	u8 rd_len_p0_u;
	u8 card_misc_cfg_reg;
	};

	struct sdio_mmc_card {
	struct sdio_func *func;
	struct mwifiex_adapter *adapter;

	const char *firmware;
	const struct mwifiex_sdio_card_reg *reg;
	u8 max_ports;
	u8 mp_agg_pkt_limit;
	bool supports_sdio_new_mode;
	bool has_control_mask;

	u32 mp_rd_bitmap;
	u32 mp_wr_bitmap;

	u16 mp_end_port;
	u32 mp_data_port_mask;

	u8 curr_rd_port;
	u8 curr_wr_port;

	u8 *mp_regs;

	struct mwifiex_sdio_mpa_tx mpa_tx;
	struct mwifiex_sdio_mpa_rx mpa_rx;
	};

	struct mwifiex_sdio_device {
	const char *firmware;
	const struct mwifiex_sdio_card_reg *reg;
	u8 max_ports;
	u8 mp_agg_pkt_limit;
	bool supports_sdio_new_mode;
	bool has_control_mask;
	};

	static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = {
	.start_rd_port = 1,
	.start_wr_port = 1,
	.base_0_reg = 0x0040,
	.base_1_reg = 0x0041,
	.poll_reg = 0x30,
	.host_int_enable = UP_LD_HOST_INT_MASK \| DN_LD_HOST_INT_MASK,
	.status_reg_0 = 0x60,
	.status_reg_1 = 0x61,
	.sdio_int_mask = 0x3f,
	.data_port_mask = 0x0000fffe,
	.max_mp_regs = 64,
	.rd_bitmap_l = 0x04,
	.rd_bitmap_u = 0x05,
	.wr_bitmap_l = 0x06,
	.wr_bitmap_u = 0x07,
	.rd_len_p0_l = 0x08,
	.rd_len_p0_u = 0x09,
	.card_misc_cfg_reg = 0x6c,
	};

	static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8897 = {
	.start_rd_port = 0,
	.start_wr_port = 0,
	.base_0_reg = 0x60,
	.base_1_reg = 0x61,
	.poll_reg = 0x50,
	.host_int_enable = UP_LD_HOST_INT_MASK \| DN_LD_HOST_INT_MASK \|
	CMD_PORT_UPLD_INT_MASK \| CMD_PORT_DNLD_INT_MASK,
	.status_reg_0 = 0xc0,
	.status_reg_1 = 0xc1,
	.sdio_int_mask = 0xff,
	.data_port_mask = 0xffffffff,
	.max_mp_regs = 184,
	.rd_bitmap_l = 0x04,
	.rd_bitmap_u = 0x05,
	.rd_bitmap_1l = 0x06,
	.rd_bitmap_1u = 0x07,
	.wr_bitmap_l = 0x08,
	.wr_bitmap_u = 0x09,
	.wr_bitmap_1l = 0x0a,
	.wr_bitmap_1u = 0x0b,
	.rd_len_p0_l = 0x0c,
	.rd_len_p0_u = 0x0d,
	.card_misc_cfg_reg = 0xcc,
	};

	static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = {
	.firmware = SD8786_DEFAULT_FW_NAME,
	.reg = &mwifiex_reg_sd87xx,
	.max_ports = 16,
	.mp_agg_pkt_limit = 8,
	.supports_sdio_new_mode = false,
	.has_control_mask = true,
	};

	static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = {
	.firmware = SD8787_DEFAULT_FW_NAME,
	.reg = &mwifiex_reg_sd87xx,
	.max_ports = 16,
	.mp_agg_pkt_limit = 8,
	.supports_sdio_new_mode = false,
	.has_control_mask = true,
	};

	static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = {
	.firmware = SD8797_DEFAULT_FW_NAME,
	.reg = &mwifiex_reg_sd87xx,
	.max_ports = 16,
	.mp_agg_pkt_limit = 8,
	.supports_sdio_new_mode = false,
	.has_control_mask = true,
	};

	static const struct mwifiex_sdio_device mwifiex_sdio_sd8897 = {
	.firmware = SD8897_DEFAULT_FW_NAME,
	.reg = &mwifiex_reg_sd8897,
	.max_ports = 32,
	.mp_agg_pkt_limit = 16,
	.supports_sdio_new_mode = true,
	.has_control_mask = false,
	};

	/*
	* .cmdrsp_complete handler
	*/
	static inline int mwifiex_sdio_cmdrsp_complete(struct mwifiex_adapter *adapter,
	struct sk_buff *skb)
	{
	dev_kfree_skb_any(skb);
	return 0;
	}

	/*
	* .event_complete handler
	*/
	static inline int mwifiex_sdio_event_complete(struct mwifiex_adapter *adapter,
	struct sk_buff *skb)
	{
	dev_kfree_skb_any(skb);
	return 0;
	}

	static inline bool
	mp_rx_aggr_port_limit_reached(struct sdio_mmc_card *card)
	{
	u8 tmp;

	if (card->curr_rd_port < card->mpa_rx.start_port) {
	if (card->supports_sdio_new_mode)
	tmp = card->mp_end_port >> 1;
	else
	tmp = card->mp_agg_pkt_limit;

	if (((card->max_ports - card->mpa_rx.start_port) +
	card->curr_rd_port) >= tmp)
	return true;
	}

	if (!card->supports_sdio_new_mode)
	return false;

	if ((card->curr_rd_port - card->mpa_rx.start_port) >=
	(card->mp_end_port >> 1))
	return true;

	return false;
	}

	static inline bool
	mp_tx_aggr_port_limit_reached(struct sdio_mmc_card *card)
	{
	u16 tmp;

	if (card->curr_wr_port < card->mpa_tx.start_port) {
	if (card->supports_sdio_new_mode)
	tmp = card->mp_end_port >> 1;
	else
	tmp = card->mp_agg_pkt_limit;

	if (((card->max_ports - card->mpa_tx.start_port) +
	card->curr_wr_port) >= tmp)
	return true;
	}

	if (!card->supports_sdio_new_mode)
	return false;

	if ((card->curr_wr_port - card->mpa_tx.start_port) >=
	(card->mp_end_port >> 1))
	return true;

	return false;
	}

	/* Prepare to copy current packet from card to SDIO Rx aggregation buffer */
	static inline void mp_rx_aggr_setup(struct sdio_mmc_card *card,
	struct sk_buff *skb, u8 port)
	{
	card->mpa_rx.buf_len += skb->len;

	if (!card->mpa_rx.pkt_cnt)
	card->mpa_rx.start_port = port;

	if (card->supports_sdio_new_mode) {
	card->mpa_rx.ports \|= (1 << port);
	} else {
	if (card->mpa_rx.start_port <= port)
	card->mpa_rx.ports \|= 1 << (card->mpa_rx.pkt_cnt);
	else
	card->mpa_rx.ports \|= 1 << (card->mpa_rx.pkt_cnt + 1);
	}
	card->mpa_rx.skb_arr[card->mpa_rx.pkt_cnt] = skb;
	card->mpa_rx.len_arr[card->mpa_rx.pkt_cnt] = skb->len;
	card->mpa_rx.pkt_cnt++;
	}
	#endif /* _MWIFIEX_SDIO_H */