drivers/usb/c67x00/c67x00.h - linux/kernel/git/dhowells/linux-fs - Git at Google


            
            /* SPDX-License-Identifier: GPL-2.0+ */

            
            /*

            
             * c67x00.h: Cypress C67X00 USB register and field definitions

            
             *

            
             * Copyright (C) 2006-2008 Barco N.V.

            
             *    Derived from the Cypress cy7c67200/300 ezusb linux driver and

            
             *    based on multiple host controller drivers inside the linux kernel.

            
             */


            #ifndef _USB_C67X00_H

            
            #define _USB_C67X00_H


            #include <linux/spinlock.h>

            
            #include <linux/platform_device.h>

            
            #include <linux/completion.h>

            
            #include <linux/mutex.h>


            /* ---------------------------------------------------------------------

            
             * Cypress C67x00 register definitions

            
             */


            /* Hardware Revision Register */

            
            #define HW_REV_REG		0xC004


            /* General USB registers */

            
            /* ===================== */


            /* USB Control Register */

            
            #define USB_CTL_REG(x)		((x) ? 0xC0AA : 0xC08A)


            #define LOW_SPEED_PORT(x)	((x) ? 0x0800 : 0x0400)

            
            #define HOST_MODE		0x0200

            
            #define PORT_RES_EN(x)		((x) ? 0x0100 : 0x0080)

            
            #define SOF_EOP_EN(x)		((x) ? 0x0002 : 0x0001)


            /* USB status register - Notice it has different content in hcd/udc mode */

            
            #define USB_STAT_REG(x)		((x) ? 0xC0B0 : 0xC090)


            #define EP0_IRQ_FLG		0x0001

            
            #define EP1_IRQ_FLG		0x0002

            
            #define EP2_IRQ_FLG		0x0004

            
            #define EP3_IRQ_FLG		0x0008

            
            #define EP4_IRQ_FLG		0x0010

            
            #define EP5_IRQ_FLG		0x0020

            
            #define EP6_IRQ_FLG		0x0040

            
            #define EP7_IRQ_FLG		0x0080

            
            #define RESET_IRQ_FLG		0x0100

            
            #define SOF_EOP_IRQ_FLG		0x0200

            
            #define ID_IRQ_FLG		0x4000

            
            #define VBUS_IRQ_FLG		0x8000


            /* USB Host only registers */

            
            /* ======================= */


            /* Host n Control Register */

            
            #define HOST_CTL_REG(x)		((x) ? 0xC0A0 : 0xC080)


            #define PREAMBLE_EN		0x0080	/* Preamble enable */

            
            #define SEQ_SEL			0x0040	/* Data Toggle Sequence Bit Select */

            
            #define ISO_EN			0x0010	/* Isochronous enable  */

            
            #define ARM_EN			0x0001	/* Arm operation */


            /* Host n Interrupt Enable Register */

            
            #define HOST_IRQ_EN_REG(x)	((x) ? 0xC0AC : 0xC08C)


            #define SOF_EOP_IRQ_EN		0x0200	/* SOF/EOP Interrupt Enable  */

            
            #define SOF_EOP_TMOUT_IRQ_EN	0x0800	/* SOF/EOP Timeout Interrupt Enable  */

            
            #define ID_IRQ_EN		0x4000	/* ID interrupt enable */

            
            #define VBUS_IRQ_EN		0x8000	/* VBUS interrupt enable */

            
            #define DONE_IRQ_EN		0x0001	/* Done Interrupt Enable  */


            /* USB status register */

            
            #define HOST_STAT_MASK		0x02FD

            
            #define PORT_CONNECT_CHANGE(x)	((x) ? 0x0020 : 0x0010)

            
            #define PORT_SE0_STATUS(x)	((x) ? 0x0008 : 0x0004)


            /* Host Frame Register */

            
            #define HOST_FRAME_REG(x)	((x) ? 0xC0B6 : 0xC096)


            #define HOST_FRAME_MASK		0x07FF


            /* USB Peripheral only registers */

            
            /* ============================= */


            /* Device n Port Sel reg */

            
            #define DEVICE_N_PORT_SEL(x)	((x) ? 0xC0A4 : 0xC084)


            /* Device n Interrupt Enable Register */

            
            #define DEVICE_N_IRQ_EN_REG(x)	((x) ? 0xC0AC : 0xC08C)


            #define DEVICE_N_ENDPOINT_N_CTL_REG(dev, ep)	((dev)  		\

            
            						 ? (0x0280 + (ep << 4)) \

            
            						 : (0x0200 + (ep << 4)))

            
            #define DEVICE_N_ENDPOINT_N_STAT_REG(dev, ep)	((dev)			\

            
            						 ? (0x0286 + (ep << 4)) \

            
            						 : (0x0206 + (ep << 4)))


            #define DEVICE_N_ADDRESS(dev)	((dev) ? (0xC0AE) : (0xC08E))


            /* HPI registers */

            
            /* ============= */


            /* HPI Status register */

            
            #define SOFEOP_FLG(x)		(1 << ((x) ? 12 : 10))

            
            #define SIEMSG_FLG(x)		(1 << (4 + (x)))

            
            #define RESET_FLG(x)		((x) ? 0x0200 : 0x0002)

            
            #define DONE_FLG(x)		(1 << (2 + (x)))

            
            #define RESUME_FLG(x)		(1 << (6 + (x)))

            
            #define MBX_OUT_FLG		0x0001	/* Message out available */

            
            #define MBX_IN_FLG		0x0100

            
            #define ID_FLG			0x4000

            
            #define VBUS_FLG		0x8000


            /* Interrupt routing register */

            
            #define HPI_IRQ_ROUTING_REG	0x0142


            #define HPI_SWAP_ENABLE(x)	((x) ? 0x0100 : 0x0001)

            
            #define RESET_TO_HPI_ENABLE(x)	((x) ? 0x0200 : 0x0002)

            
            #define DONE_TO_HPI_ENABLE(x)	((x) ? 0x0008 : 0x0004)

            
            #define RESUME_TO_HPI_ENABLE(x)	((x) ? 0x0080 : 0x0040)

            
            #define SOFEOP_TO_HPI_EN(x)	((x) ? 0x2000 : 0x0800)

            
            #define SOFEOP_TO_CPU_EN(x)	((x) ? 0x1000 : 0x0400)

            
            #define ID_TO_HPI_ENABLE	0x4000

            
            #define VBUS_TO_HPI_ENABLE	0x8000


            /* SIE msg registers */

            
            #define SIEMSG_REG(x)		((x) ? 0x0148 : 0x0144)


            #define HUSB_TDListDone		0x1000


            #define SUSB_EP0_MSG		0x0001

            
            #define SUSB_EP1_MSG		0x0002

            
            #define SUSB_EP2_MSG		0x0004

            
            #define SUSB_EP3_MSG		0x0008

            
            #define SUSB_EP4_MSG		0x0010

            
            #define SUSB_EP5_MSG		0x0020

            
            #define SUSB_EP6_MSG		0x0040

            
            #define SUSB_EP7_MSG		0x0080

            
            #define SUSB_RST_MSG		0x0100

            
            #define SUSB_SOF_MSG		0x0200

            
            #define SUSB_CFG_MSG		0x0400

            
            #define SUSB_SUS_MSG		0x0800

            
            #define SUSB_ID_MSG	       	0x4000

            
            #define SUSB_VBUS_MSG		0x8000


            /* BIOS interrupt routines */


            #define SUSBx_RECEIVE_INT(x)	((x) ? 97 : 81)

            
            #define SUSBx_SEND_INT(x)	((x) ? 96 : 80)


            #define SUSBx_DEV_DESC_VEC(x)	((x) ? 0x00D4 : 0x00B4)

            
            #define SUSBx_CONF_DESC_VEC(x)	((x) ? 0x00D6 : 0x00B6)

            
            #define SUSBx_STRING_DESC_VEC(x) ((x) ? 0x00D8 : 0x00B8)


            #define CY_HCD_BUF_ADDR		0x500	/* Base address for host */

            
            #define SIE_TD_SIZE		0x200	/* size of the td list */

            
            #define SIE_TD_BUF_SIZE		0x400	/* size of the data buffer */


            #define SIE_TD_OFFSET(host)	((host) ? (SIE_TD_SIZE+SIE_TD_BUF_SIZE) : 0)

            
            #define SIE_BUF_OFFSET(host)	(SIE_TD_OFFSET(host) + SIE_TD_SIZE)


            /* Base address of HCD + 2 x TD_SIZE + 2 x TD_BUF_SIZE */

            
            #define CY_UDC_REQ_HEADER_BASE	0x1100

            
            /* 8- byte request headers for IN/OUT transfers */

            
            #define CY_UDC_REQ_HEADER_SIZE	8


            #define CY_UDC_REQ_HEADER_ADDR(ep_num)	(CY_UDC_REQ_HEADER_BASE + \

            
            					 ((ep_num) * CY_UDC_REQ_HEADER_SIZE))

            
            #define CY_UDC_DESC_BASE_ADDRESS	(CY_UDC_REQ_HEADER_ADDR(8))


            #define CY_UDC_BIOS_REPLACE_BASE	0x1800

            
            #define CY_UDC_REQ_BUFFER_BASE		0x2000

            
            #define CY_UDC_REQ_BUFFER_SIZE		0x0400

            
            #define CY_UDC_REQ_BUFFER_ADDR(ep_num)	(CY_UDC_REQ_BUFFER_BASE + \

            
            					 ((ep_num) * CY_UDC_REQ_BUFFER_SIZE))


            /* ---------------------------------------------------------------------

            
             * Driver data structures

            
             */


            struct c67x00_device;


            /**

            
             * struct c67x00_sie - Common data associated with a SIE

            
             * @lock: lock to protect this struct and the associated chip registers

            
             * @private_data: subdriver dependent data

            
             * @irq: subdriver dependent irq handler, set NULL when not used

            
             * @dev: link to common driver structure

            
             * @sie_num: SIE number on chip, starting from 0

            
             * @mode: SIE mode (host/peripheral/otg/not used)

            
             */

            
            struct c67x00_sie {

            
            	/* Entries to be used by the subdrivers */

            
            	spinlock_t lock;	/* protect this structure */

            
            	void *private_data;

            
            	void (*irq) (struct c67x00_sie *sie, u16 int_status, u16 msg);


            	/* Read only: */

            
            	struct c67x00_device *dev;

            
            	int sie_num;

            
            	int mode;

            
            };


            #define sie_dev(s)	(&(s)->dev->pdev->dev)


            /**

            
             * struct c67x00_lcp

            
             */

            
            struct c67x00_lcp {

            
            	/* Internal use only */

            
            	struct mutex mutex;

            
            	struct completion msg_received;

            
            	u16 last_msg;

            
            };


            /*

            
             * struct c67x00_hpi

            
             */

            
            struct c67x00_hpi {

            
            	void __iomem *base;

            
            	int regstep;

            
            	spinlock_t lock;

            
            	struct c67x00_lcp lcp;

            
            };


            #define C67X00_SIES	2

            
            #define C67X00_PORTS	2


            /**

            
             * struct c67x00_device - Common data associated with a c67x00 instance

            
             * @hpi: hpi addresses

            
             * @sie: array of sie's on this chip

            
             * @pdev: platform device of instance

            
             * @pdata: configuration provided by the platform

            
             */

            
            struct c67x00_device {

            
            	struct c67x00_hpi hpi;

            
            	struct c67x00_sie sie[C67X00_SIES];

            
            	struct platform_device *pdev;

            
            	struct c67x00_platform_data *pdata;

            
            };


            /* ---------------------------------------------------------------------

            
             * Low level interface functions

            
             */


            /* Host Port Interface (HPI) functions */

            
            u16 c67x00_ll_hpi_status(struct c67x00_device *dev);

            
            void c67x00_ll_hpi_reg_init(struct c67x00_device *dev);

            
            void c67x00_ll_hpi_enable_sofeop(struct c67x00_sie *sie);

            
            void c67x00_ll_hpi_disable_sofeop(struct c67x00_sie *sie);


            /* General functions */

            
            u16 c67x00_ll_fetch_siemsg(struct c67x00_device *dev, int sie_num);

            
            u16 c67x00_ll_get_usb_ctl(struct c67x00_sie *sie);

            
            void c67x00_ll_usb_clear_status(struct c67x00_sie *sie, u16 bits);

            
            u16 c67x00_ll_usb_get_status(struct c67x00_sie *sie);

            
            void c67x00_ll_write_mem_le16(struct c67x00_device *dev, u16 addr,

            
            			      void *data, int len);

            
            void c67x00_ll_read_mem_le16(struct c67x00_device *dev, u16 addr,

            
            			     void *data, int len);


            /* Host specific functions */

            
            void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value);

            
            void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port);

            
            void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr);

            
            u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie);

            
            u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie);

            
            void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie);

            
            void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port);


            /* Called by c67x00_irq to handle lcp interrupts */

            
            void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status);


            /* Setup and teardown */

            
            void c67x00_ll_init(struct c67x00_device *dev);

            
            void c67x00_ll_release(struct c67x00_device *dev);

            
            int c67x00_ll_reset(struct c67x00_device *dev);


            #endif				/* _USB_C67X00_H */
	/* SPDX-License-Identifier: GPL-2.0+ */
	/*
	* c67x00.h: Cypress C67X00 USB register and field definitions
	*
	* Copyright (C) 2006-2008 Barco N.V.
	* Derived from the Cypress cy7c67200/300 ezusb linux driver and
	* based on multiple host controller drivers inside the linux kernel.
	*/

	#ifndef _USB_C67X00_H
	#define _USB_C67X00_H

	#include <linux/spinlock.h>
	#include <linux/platform_device.h>
	#include <linux/completion.h>
	#include <linux/mutex.h>

	/* ---------------------------------------------------------------------
	* Cypress C67x00 register definitions
	*/

	/* Hardware Revision Register */
	#define HW_REV_REG 0xC004

	/* General USB registers */
	/* ===================== */

	/* USB Control Register */
	#define USB_CTL_REG(x) ((x) ? 0xC0AA : 0xC08A)

	#define LOW_SPEED_PORT(x) ((x) ? 0x0800 : 0x0400)
	#define HOST_MODE 0x0200
	#define PORT_RES_EN(x) ((x) ? 0x0100 : 0x0080)
	#define SOF_EOP_EN(x) ((x) ? 0x0002 : 0x0001)

	/* USB status register - Notice it has different content in hcd/udc mode */
	#define USB_STAT_REG(x) ((x) ? 0xC0B0 : 0xC090)

	#define EP0_IRQ_FLG 0x0001
	#define EP1_IRQ_FLG 0x0002
	#define EP2_IRQ_FLG 0x0004
	#define EP3_IRQ_FLG 0x0008
	#define EP4_IRQ_FLG 0x0010
	#define EP5_IRQ_FLG 0x0020
	#define EP6_IRQ_FLG 0x0040
	#define EP7_IRQ_FLG 0x0080
	#define RESET_IRQ_FLG 0x0100
	#define SOF_EOP_IRQ_FLG 0x0200
	#define ID_IRQ_FLG 0x4000
	#define VBUS_IRQ_FLG 0x8000

	/* USB Host only registers */
	/* ======================= */

	/* Host n Control Register */
	#define HOST_CTL_REG(x) ((x) ? 0xC0A0 : 0xC080)

	#define PREAMBLE_EN 0x0080 /* Preamble enable */
	#define SEQ_SEL 0x0040 /* Data Toggle Sequence Bit Select */
	#define ISO_EN 0x0010 /* Isochronous enable */
	#define ARM_EN 0x0001 /* Arm operation */

	/* Host n Interrupt Enable Register */
	#define HOST_IRQ_EN_REG(x) ((x) ? 0xC0AC : 0xC08C)

	#define SOF_EOP_IRQ_EN 0x0200 /* SOF/EOP Interrupt Enable */
	#define SOF_EOP_TMOUT_IRQ_EN 0x0800 /* SOF/EOP Timeout Interrupt Enable */
	#define ID_IRQ_EN 0x4000 /* ID interrupt enable */
	#define VBUS_IRQ_EN 0x8000 /* VBUS interrupt enable */
	#define DONE_IRQ_EN 0x0001 /* Done Interrupt Enable */

	/* USB status register */
	#define HOST_STAT_MASK 0x02FD
	#define PORT_CONNECT_CHANGE(x) ((x) ? 0x0020 : 0x0010)
	#define PORT_SE0_STATUS(x) ((x) ? 0x0008 : 0x0004)

	/* Host Frame Register */
	#define HOST_FRAME_REG(x) ((x) ? 0xC0B6 : 0xC096)

	#define HOST_FRAME_MASK 0x07FF

	/* USB Peripheral only registers */
	/* ============================= */

	/* Device n Port Sel reg */
	#define DEVICE_N_PORT_SEL(x) ((x) ? 0xC0A4 : 0xC084)

	/* Device n Interrupt Enable Register */
	#define DEVICE_N_IRQ_EN_REG(x) ((x) ? 0xC0AC : 0xC08C)

	#define DEVICE_N_ENDPOINT_N_CTL_REG(dev, ep) ((dev) \
	? (0x0280 + (ep << 4)) \
	: (0x0200 + (ep << 4)))
	#define DEVICE_N_ENDPOINT_N_STAT_REG(dev, ep) ((dev) \
	? (0x0286 + (ep << 4)) \
	: (0x0206 + (ep << 4)))

	#define DEVICE_N_ADDRESS(dev) ((dev) ? (0xC0AE) : (0xC08E))

	/* HPI registers */
	/* ============= */

	/* HPI Status register */
	#define SOFEOP_FLG(x) (1 << ((x) ? 12 : 10))
	#define SIEMSG_FLG(x) (1 << (4 + (x)))
	#define RESET_FLG(x) ((x) ? 0x0200 : 0x0002)
	#define DONE_FLG(x) (1 << (2 + (x)))
	#define RESUME_FLG(x) (1 << (6 + (x)))
	#define MBX_OUT_FLG 0x0001 /* Message out available */
	#define MBX_IN_FLG 0x0100
	#define ID_FLG 0x4000
	#define VBUS_FLG 0x8000

	/* Interrupt routing register */
	#define HPI_IRQ_ROUTING_REG 0x0142

	#define HPI_SWAP_ENABLE(x) ((x) ? 0x0100 : 0x0001)
	#define RESET_TO_HPI_ENABLE(x) ((x) ? 0x0200 : 0x0002)
	#define DONE_TO_HPI_ENABLE(x) ((x) ? 0x0008 : 0x0004)
	#define RESUME_TO_HPI_ENABLE(x) ((x) ? 0x0080 : 0x0040)
	#define SOFEOP_TO_HPI_EN(x) ((x) ? 0x2000 : 0x0800)
	#define SOFEOP_TO_CPU_EN(x) ((x) ? 0x1000 : 0x0400)
	#define ID_TO_HPI_ENABLE 0x4000
	#define VBUS_TO_HPI_ENABLE 0x8000

	/* SIE msg registers */
	#define SIEMSG_REG(x) ((x) ? 0x0148 : 0x0144)

	#define HUSB_TDListDone 0x1000

	#define SUSB_EP0_MSG 0x0001
	#define SUSB_EP1_MSG 0x0002
	#define SUSB_EP2_MSG 0x0004
	#define SUSB_EP3_MSG 0x0008
	#define SUSB_EP4_MSG 0x0010
	#define SUSB_EP5_MSG 0x0020
	#define SUSB_EP6_MSG 0x0040
	#define SUSB_EP7_MSG 0x0080
	#define SUSB_RST_MSG 0x0100
	#define SUSB_SOF_MSG 0x0200
	#define SUSB_CFG_MSG 0x0400
	#define SUSB_SUS_MSG 0x0800
	#define SUSB_ID_MSG 0x4000
	#define SUSB_VBUS_MSG 0x8000

	/* BIOS interrupt routines */

	#define SUSBx_RECEIVE_INT(x) ((x) ? 97 : 81)
	#define SUSBx_SEND_INT(x) ((x) ? 96 : 80)

	#define SUSBx_DEV_DESC_VEC(x) ((x) ? 0x00D4 : 0x00B4)
	#define SUSBx_CONF_DESC_VEC(x) ((x) ? 0x00D6 : 0x00B6)
	#define SUSBx_STRING_DESC_VEC(x) ((x) ? 0x00D8 : 0x00B8)

	#define CY_HCD_BUF_ADDR 0x500 /* Base address for host */
	#define SIE_TD_SIZE 0x200 /* size of the td list */
	#define SIE_TD_BUF_SIZE 0x400 /* size of the data buffer */

	#define SIE_TD_OFFSET(host) ((host) ? (SIE_TD_SIZE+SIE_TD_BUF_SIZE) : 0)
	#define SIE_BUF_OFFSET(host) (SIE_TD_OFFSET(host) + SIE_TD_SIZE)

	/* Base address of HCD + 2 x TD_SIZE + 2 x TD_BUF_SIZE */
	#define CY_UDC_REQ_HEADER_BASE 0x1100
	/* 8- byte request headers for IN/OUT transfers */
	#define CY_UDC_REQ_HEADER_SIZE 8

	#define CY_UDC_REQ_HEADER_ADDR(ep_num) (CY_UDC_REQ_HEADER_BASE + \
	((ep_num) * CY_UDC_REQ_HEADER_SIZE))
	#define CY_UDC_DESC_BASE_ADDRESS (CY_UDC_REQ_HEADER_ADDR(8))

	#define CY_UDC_BIOS_REPLACE_BASE 0x1800
	#define CY_UDC_REQ_BUFFER_BASE 0x2000
	#define CY_UDC_REQ_BUFFER_SIZE 0x0400
	#define CY_UDC_REQ_BUFFER_ADDR(ep_num) (CY_UDC_REQ_BUFFER_BASE + \
	((ep_num) * CY_UDC_REQ_BUFFER_SIZE))

	/* ---------------------------------------------------------------------
	* Driver data structures
	*/

	struct c67x00_device;

	/**
	* struct c67x00_sie - Common data associated with a SIE
	* @lock: lock to protect this struct and the associated chip registers
	* @private_data: subdriver dependent data
	* @irq: subdriver dependent irq handler, set NULL when not used
	* @dev: link to common driver structure
	* @sie_num: SIE number on chip, starting from 0
	* @mode: SIE mode (host/peripheral/otg/not used)
	*/
	struct c67x00_sie {
	/* Entries to be used by the subdrivers */
	spinlock_t lock; /* protect this structure */
	void *private_data;
	void (irq) (struct c67x00_sie sie, u16 int_status, u16 msg);

	/* Read only: */
	struct c67x00_device *dev;
	int sie_num;
	int mode;
	};

	#define sie_dev(s) (&(s)->dev->pdev->dev)

	/**
	* struct c67x00_lcp
	*/
	struct c67x00_lcp {
	/* Internal use only */
	struct mutex mutex;
	struct completion msg_received;
	u16 last_msg;
	};

	/*
	* struct c67x00_hpi
	*/
	struct c67x00_hpi {
	void __iomem *base;
	int regstep;
	spinlock_t lock;
	struct c67x00_lcp lcp;
	};

	#define C67X00_SIES 2
	#define C67X00_PORTS 2

	/**
	* struct c67x00_device - Common data associated with a c67x00 instance
	* @hpi: hpi addresses
	* @sie: array of sie's on this chip
	* @pdev: platform device of instance
	* @pdata: configuration provided by the platform
	*/
	struct c67x00_device {
	struct c67x00_hpi hpi;
	struct c67x00_sie sie[C67X00_SIES];
	struct platform_device *pdev;
	struct c67x00_platform_data *pdata;
	};

	/* ---------------------------------------------------------------------
	* Low level interface functions
	*/

	/* Host Port Interface (HPI) functions */
	u16 c67x00_ll_hpi_status(struct c67x00_device *dev);
	void c67x00_ll_hpi_reg_init(struct c67x00_device *dev);
	void c67x00_ll_hpi_enable_sofeop(struct c67x00_sie *sie);
	void c67x00_ll_hpi_disable_sofeop(struct c67x00_sie *sie);

	/* General functions */
	u16 c67x00_ll_fetch_siemsg(struct c67x00_device *dev, int sie_num);
	u16 c67x00_ll_get_usb_ctl(struct c67x00_sie *sie);
	void c67x00_ll_usb_clear_status(struct c67x00_sie *sie, u16 bits);
	u16 c67x00_ll_usb_get_status(struct c67x00_sie *sie);
	void c67x00_ll_write_mem_le16(struct c67x00_device *dev, u16 addr,
	void *data, int len);
	void c67x00_ll_read_mem_le16(struct c67x00_device *dev, u16 addr,
	void *data, int len);

	/* Host specific functions */
	void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value);
	void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port);
	void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr);
	u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie);
	u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie);
	void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie);
	void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port);

	/* Called by c67x00_irq to handle lcp interrupts */
	void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status);

	/* Setup and teardown */
	void c67x00_ll_init(struct c67x00_device *dev);
	void c67x00_ll_release(struct c67x00_device *dev);
	int c67x00_ll_reset(struct c67x00_device *dev);

	#endif /* _USB_C67X00_H */