nereid_usb.h

USB monitor

/* nereid_usb.h - header for Nereid USB (SL811HST)
 * Copyright (C) 2003 Tachibana Eriko
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#ifndef nereid_usb_h
#define nereid_usb_h

#include "binary.h"


/* Nereid 惂屼儗僕僗僞 */
#define NEREID_CTRL_0	((__volatile unsigned char*) 0xece3f1)
#define NEREID_CTRL_1	((__volatile unsigned char*) 0xecebf1)
#define NEREID_CTRL	NEREID_CTRL_0

#define NEREID_USB_ENA	0x01
#define NEREID_USB_POW	0x02
#define NEREID_USB_INT	0x04
#define NEREID_BM_ADDR	0x20
#define NEREID_BM_SIZE	0x40
#define NEREID_BM_ENA	0x80


/* SL811HST 億乕僩傾僪儗僗 */
#define SL811HST_ADDR_0	((__volatile unsigned char*) 0xece381)
#define SL811HST_DATA_0	((__volatile unsigned char*) 0xece383)
#define SL811HST_ADDR_1	((__volatile unsigned char*) 0xeceb81)
#define SL811HST_DATA_1	((__volatile unsigned char*) 0xeceb83)

#define SL811HST_ADDR	SL811HST_ADDR_0
#define SL811HST_DATA	SL811HST_DATA_0


/* SL811HST 儗僕僗僞 */
#define SL811_A_HostControlRegister		0x00
#define SL811_A_HostBaseAddress			0x01
#define SL811_A_HostBaseLength			0x02
#define SL811_A_HostPID_DeviceEndpoint		0x03	/* Write */
#define SL811_A_USBStatus			0x03	/* Read */
#define SL811_A_HostDeviceAddress		0x04	/* Write */
#define SL811_A_HostTransferCountRegister	0x04	/* Read */
#define SL811_ControlRegister1			0x05
#define SL811_InterruptEnableRegister		0x06
#define SL811_Reserved				0x07
#define SL811_B_HostControlRegister		0x08
#define SL811_B_HostBaseAddress			0x09
#define SL811_B_HostBaseLength			0x0a
#define SL811_B_HostPID_DeviceEndpoint		0x0b	/* Write */
#define SL811_B_USBStatus			0x0b	/* Read */
#define SL811_B_HostDeviceAddress		0x0c	/* Write */
#define SL811_B_HostTransferCountRegister	0x0c	/* Read */
#define SL811_InterruptStatusRegister		0x0d
#define SL811_SOFCounterLow			0x0e	/* Write */
#define SL811_HWRevisionRegister		0x0e	/* Read */
#define SL811_SOFCounterHigh_ControlRegister2	0x0f

#define SL811_BUF	0x10
#define SL811_SIZE	0x100
#define SL811_BUF_SIZE	(SL811_SIZE - SL811_BUF)

/* HostControlRegister 愝掕抣 */
#define SL811_ARM		b0000_0001	/* ARM */
#define SL811_ISO		b0001_0000	/* Isochronous */
#define SL811_SOF		b0010_0000	/* SYNC to SOF */
#define SL811_SEQ		b0100_0000	/* Data0/Data1 */
#define SL811_READ_DATA0	b0000_0011	/* ARM, Enable, toHost, Data0 */
#define SL811_READ_DATA1	b0100_0011	/* ARM, Enable, toHost, Data1 */
#define SL811_WRITE_DATA0	b0000_0111	/* ARM, Enable, toDevice, Data0 */
#define SL811_WRITE_DATA1	b0100_0111	/* ARM, Enable, toDevice, Data1 */

/* A_USBStatus丄B_USBStatus 嶲徠抣 */
#define SL811_ST_ACK		b0000_0001	/* ACK */
#define SL811_ST_ERR		b0000_0010	/* Error */
#define SL811_ST_TO		b0000_0100	/* Time-Out */
#define SL811_ST_SEQ		b0000_1000	/* Sequence 0=Data0 1=Data1 */
#define SL811_ST_SUP		b0001_0000	/* Setup Packet */
#define SL811_ST_OVFL		b0010_0000	/* Overflow */
#define SL811_ST_NAK		b0100_0000	/* NAK */
#define SL811_ST_STALL		b1000_0000	/* STALL */

/* ControlRegister1 愝掕抣 */
#define SL811_C1_SOF		b0000_0001	/* Hardware SOF Enable */
#define SL811_C1_EOF2		b0000_0100	/* transfer in EOF2 Disable */
#define SL811_C1_RESET		b0000_1000	/* USB Engine Reset */
#define SL811_C1_JKFS		b0001_0000	/* J-K Force State */
#define SL811_C1_SPEED		b0010_0000	/* USB Speed */
#define SL811_C1_SUSP		b0100_0000	/* Suspend */

/* InterruptEnableRegister 愝掕抣丄InterruptStatusRegister 嶲徠抣 */
#define SL811_INT_A		b0000_0001	/* USB-A */
#define SL811_INT_B		b0000_0010	/* USB-B */
#define SL811_INT_BD		b0000_0100	/* Babble Detection (攑巭) */
#define SL811_INT_SOF		b0001_0000	/* SOF Timer */
#define SL811_INT_INS		b0010_0000	/* Insert/Remove */
#define SL811_INT_RESET		b0100_0000	/* Reset/Resume */
#define SL811_INT_D		b1000_0000	/* D+ status */


/* 妱傝崬傒嬛巭 */
static __inline void
DI (void)
{
  __asm __volatile ("move\tsr,-(sp)\n\tori\t#$700,sr"::);
}

/* 妱傝崬傒嫋壜 */
static __inline void
EI (void)
{
  __asm __volatile ("move\t(sp)+,sr"::);
}


/* 1僶僀僩撉傒崬傒 */
static __inline unsigned char
SL811Read (int addr)
{
  unsigned char data;

  DI ();
  *SL811HST_ADDR = addr;
  data = *SL811HST_DATA;
  EI ();
  return data;
}

/* 擟堄僶僀僩撉傒崬傒 */
static __inline void
SL811BufRead (int addr, unsigned char* buf, int size)
{
  DI ();
  *SL811HST_ADDR = addr;
  while (--size >= 0)
    *buf++ = *SL811HST_DATA;
  EI ();
}


/* 1僶僀僩彂偒崬傒 */
static __inline void
SL811Write (int addr, unsigned char data)
{
  DI ();
  *SL811HST_ADDR = addr;
  *SL811HST_DATA = data;
  EI ();
}

/* 擟堄僶僀僩彂偒崬傒 */
static __inline void
SL811BufWrite (int addr, const unsigned char* buf, int size)
{
  DI ();
  *SL811HST_ADDR = addr;
  while (--size >= 0)
    *SL811HST_DATA = *buf++;
  EI ();
}

/* 僂僃僀僩 */
#define DELAYMS(t) delay20ms ((t) * 20)
static __inline void
delay20ms (int time)
{
  register int dummy;

  __asm __volatile (
	       "move.b	(%2),%0\n"
	"@@:	cmp.b	(%2),%0\n"
	"	beq	@b\n"
	"@@:	subq.b	#1,%0\n"
	"	bne	@f\n"
	"	moveq	#$c8,%0\n"
	"@@:	cmp.b	(%2),%0\n"
	"	beq	@b\n"
	"	subq.l	#1,%3\n"
	"	bgt	@@b"
	: "=&d" (dummy), "=&d" (time)
	: "a" (0xe88023), "d" (time));
}


#endif /* !nereid_usb_h */

/* EOF */