/*********************************************************************
*
* Filename: w83977af_ir.c
* Version: 1.0
* Description: FIR driver for the Winbond W83977AF Super I/O chip
* Status: Experimental.
* Author: Paul VanderSpek
* Created at: Wed Nov 4 11:46:16 1998
* Modified at: Fri Jan 28 12:10:59 2000
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1998-2000 Dag Brattli <dagb@cs.uit.no>
* Copyright (c) 1998-1999 Rebel.com
*
* 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.
*
* Neither Paul VanderSpek nor Rebel.com admit liability nor provide
* warranty for any of this software. This material is provided "AS-IS"
* and at no charge.
*
* If you find bugs in this file, its very likely that the same bug
* will also be in pc87108.c since the implementations are quite
* similar.
*
* Notice that all functions that needs to access the chip in _any_
* way, must save BSR register on entry, and restore it on exit.
* It is _very_ important to follow this policy!
*
* __u8 bank;
*
* bank = inb( iobase+BSR);
*
* do_your_stuff_here();
*
* outb( bank, iobase+BSR);
*
********************************************************************/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/rtnetlink.h>
#include <linux/dma-mapping.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/byteorder.h>
#include <net/irda/irda.h>
#include <net/irda/wrapper.h>
#include <net/irda/irda_device.h>
#include "w83977af.h"
#include "w83977af_ir.h"
#ifdef CONFIG_ARCH_NETWINDER /* Adjust to NetWinder differences */
#undef CONFIG_NETWINDER_TX_DMA_PROBLEMS /* Not needed */
#define CONFIG_NETWINDER_RX_DMA_PROBLEMS /* Must have this one! */
#endif
#undef CONFIG_USE_INTERNAL_TIMER /* Just cannot make that timer work */
#define CONFIG_USE_W977_PNP /* Currently needed */
#define PIO_MAX_SPEED 115200
static char *driver_name = "w83977af_ir";
static int qos_mtt_bits = 0x07; /* 1 ms or more */
#define CHIP_IO_EXTENT 8
static unsigned int io[] = { 0x180, ~0, ~0, ~0 };
#ifdef CONFIG_ARCH_NETWINDER /* Adjust to NetWinder differences */
static unsigned int irq[] = { 6, 0, 0, 0 };
#else
static unsigned int irq[] = { 11, 0, 0, 0 };
#endif
static unsigned int dma[] = { 1, 0, 0, 0 };
static unsigned int efbase[] = { W977_EFIO_BASE, W977_EFIO2_BASE 