path: root/drivers/char/rio/rioboot.c

/*
** -----------------------------------------------------------------------------
**
**  Perle Specialix driver for Linux
**  Ported from existing RIO Driver for SCO sources.
 *
 *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
 *
 *      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., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**	Module		: rioboot.c
**	SID		: 1.3
**	Last Modified	: 11/6/98 10:33:36
**	Retrieved	: 11/6/98 10:33:48
**
**  ident @(#)rioboot.c	1.3
**
** -----------------------------------------------------------------------------
*/

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/termios.h>
#include <linux/serial.h>
#include <asm/semaphore.h>
#include <linux/generic_serial.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
#include <asm/uaccess.h>


#include "linux_compat.h"
#include "rio_linux.h"
#include "pkt.h"
#include "daemon.h"
#include "rio.h"
#include "riospace.h"
#include "cmdpkt.h"
#include "map.h"
#include "rup.h"
#include "port.h"
#include "riodrvr.h"
#include "rioinfo.h"
#include "func.h"
#include "errors.h"
#include "pci.h"

#include "parmmap.h"
#include "unixrup.h"
#include "board.h"
#include "host.h"
#include "phb.h"
#include "link.h"
#include "cmdblk.h"
#include "route.h"

static int RIOBootComplete(struct rio_info *p, struct Host *HostP, unsigned int Rup, struct PktCmd *PktCmdP);

static const unsigned char RIOAtVec2Ctrl[] = {
	/* 0 */ INTERRUPT_DISABLE,
	/* 1 */ INTERRUPT_DISABLE,
	/* 2 */ INTERRUPT_DISABLE,
	/* 3 */ INTERRUPT_DISABLE,
	/* 4 */ INTERRUPT_DISABLE,
	/* 5 */ INTERRUPT_DISABLE,
	/* 6 */ INTERRUPT_DISABLE,
	/* 7 */ INTERRUPT_DISABLE,
	/* 8 */ INTERRUPT_DISABLE,
	/* 9 */ IRQ_9 | INTERRUPT_ENABLE,
	/* 10 */ INTERRUPT_DISABLE,
	/* 11 */ IRQ_11 | INTERRUPT_ENABLE,
	/* 12 */ IRQ_12 | INTERRUPT_ENABLE,
	/* 13 */ INTERRUPT_DISABLE,
	/* 14 */ INTERRUPT_DISABLE,
	/* 15 */ IRQ_15 | INTERRUPT_ENABLE
};

/**
 *	RIOBootCodeRTA		-	Load RTA boot code
 *	@p: RIO to load
 *	@rbp: Download descriptor
 *
 *	Called when the user process initiates booting of the card firmware.
 *	Lads the firmware
 */

int RIOBootCodeRTA(struct rio_info *p, struct DownLoad * rbp)
{
	int offset;

	func_enter();

	rio_dprintk(RIO_DEBUG_BOOT, "Data at user address %p\n", rbp->DataP);

	/*
	 ** Check that we have set asside enough memory for this
	 */
	if (rbp->Count > SIXTY_FOUR_K) {
		rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code Too Large!\n");
		p->RIOError.Error = HOST_FILE_TOO_LARGE;
		func_exit();
		return -ENOMEM;
	}

	if (p->RIOBooting) {
		rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code : BUSY BUSY BUSY!\n");
		p->RIOError.Error = BOOT_IN_PROGRESS;
		func_exit();
		return -EBUSY;
	}

	/*
	 ** The data we load in must end on a (RTA_BOOT_DATA_SIZE) byte boundary,
	 ** so calculate how far we have to move the data up the buffer
	 ** to achieve this.
	 */
	offset = (RTA_BOOT_DATA_SIZE - (rbp->Count % RTA_BOOT_DATA_SIZE)) % RTA_BOOT_DATA_SIZE;

	/*
	 ** Be clean, and clear the 'unused' portion of the boot buffer,
	 ** because it will (eventually) be part of the Rta run time environment
	 ** and so should be zeroed.
	 */
	memset(p->RIOBootPackets, 0, offset);

	/*
	 ** Copy the data from user space into the array
	 */

	if (copy_from_user(((u8 *)p->RIOBootPackets) + offset, rbp->DataP, rbp->Count)) {
		rio_dprintk(RIO_DEBUG_BOOT, "Bad data copy from user space\n");
		p->RIOError.Error = COPYIN_FAILED;
		func_exit();
		return -EFAULT;
	}

	/*
	 ** Make sure that our copy of the size includes that offset we discussed
	 ** earlier.
	 */
	p->RIONumBootPkts = (rbp->Count + offset) / RTA_BOOT_DATA_SIZE;
	p->RIOBootCount = rbp->Count;

	func_exit();
	return 0;
}

/**
 *	rio_start_card_running		-	host card start
 *	@HostP: The RIO to kick off
 *
 *	Start a RIO processor unit running. Encapsulates the knowledge
 *	of the card t