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marcus.erl |
/*
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* SDLA An implementation of a driver for the Sangoma S502/S508 series
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* multi-protocol PC interface card. Initial offering is with
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* the DLCI driver, providing Frame Relay support for linux.
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*
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* Global definitions for the Frame relay interface.
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*
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* Version: @(#)sdla.c 0.30 12 Sep 1996
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*
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* Credits: Sangoma Technologies, for the use of 2 cards for an extended
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* period of time.
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* David Mandelstam <dm@sangoma.com> for getting me started on
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* this project, and incentive to complete it.
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* Gene Kozen <74604.152@compuserve.com> for providing me with
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* important information about the cards.
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*
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* Author: Mike McLagan <mike.mclagan@linux.org>
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*
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* Changes:
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* 0.15 Mike McLagan Improved error handling, packet dropping
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* 0.20 Mike McLagan New transmit/receive flags for config
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* If in FR mode, don't accept packets from
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* non DLCI devices.
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* 0.25 Mike McLagan Fixed problem with rejecting packets
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* from non DLCI devices.
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* 0.30 Mike McLagan Fixed kernel panic when used with modified
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* ifconfig
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/fcntl.h>
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#include <linux/interrupt.h>
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#include <linux/ptrace.h>
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#include <linux/ioport.h>
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#include <linux/in.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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#include <linux/if_arp.h>
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#include <linux/if_frad.h>
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#include <linux/sdla.h>
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#include <linux/bitops.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#include <asm/uaccess.h>
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static const char* version = "SDLA driver v0.30, 12 Sep 1996, mike.mclagan@linux.org";
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static unsigned int valid_port[] = { 0x250, 0x270, 0x280, 0x300, 0x350, 0x360, 0x380, 0x390};
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static unsigned int valid_mem[] = {
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0xA0000, 0xA2000, 0xA4000, 0xA6000, 0xA8000, 0xAA000, 0xAC000, 0xAE000,
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0xB0000, 0xB2000, 0xB4000, 0xB6000, 0xB8000, 0xBA000, 0xBC000, 0xBE000,
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0xC0000, 0xC2000, 0xC4000, 0xC6000, 0xC8000, 0xCA000, 0xCC000, 0xCE000,
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0xD0000, 0xD2000, 0xD4000, 0xD6000, 0xD8000, 0xDA000, 0xDC000, 0xDE000,
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0xE0000, 0xE2000, 0xE4000, 0xE6000, 0xE8000, 0xEA000, 0xEC000, 0xEE000};
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static DEFINE_SPINLOCK(sdla_lock);
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/*********************************************************
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*
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* these are the core routines that access the card itself
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*
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*********************************************************/
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#define SDLA_WINDOW(dev,addr) outb((((addr) >> 13) & 0x1F), (dev)->base_addr + SDLA_REG_Z80_WINDOW)
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static void __sdla_read(struct net_device *dev, int addr, void *buf, short len)
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{
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char *temp;
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const void *base;
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int offset, bytes;
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temp = buf;
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while(len)
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{
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offset = addr & SDLA_ADDR_MASK;
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bytes = offset + len > SDLA_WINDOW_SIZE ? SDLA_WINDOW_SIZE - offset : len;
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base = (const void *) (dev->mem_start + offset);
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SDLA_WINDOW(dev, addr);
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memcpy(temp, base, bytes);
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addr += bytes;
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temp += bytes;
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len -= bytes;
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}
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}
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static void sdla_read(struct net_device *dev, int addr, void *buf, short len)
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{
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unsigned long flags;
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spin_lock_irqsave(&sdla_lock, flags);
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__sdla_read(dev, addr, buf, len);
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spin_unlock_irqrestore(&sdla_lock, flags);
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}
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static void __sdla_write(struct net_device *dev, int addr,
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const void *buf, short len)
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{
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const char *temp;
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void *base;
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int offset, bytes;
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temp = buf;
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while(len)
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{
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offset = addr & SDLA_ADDR_MASK;
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bytes = offset + len > SDLA_WINDOW_SIZE ? SDLA_WINDOW_SIZE - offset : len;
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base = (void *) (dev->mem_start + offset);
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SDLA_WINDOW(dev, addr);
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memcpy(base, temp, bytes);
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addr += bytes;
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temp += bytes;
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len -= bytes;
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}
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}
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static void sdla_write(struct net_device *dev, int addr,
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const void *buf, short len)
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{
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unsigned long flags;
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spin_lock_irqsave(&sdla_lock, flags);
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__sdla_write(dev, addr, buf, len);
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spin_unlock_irqrestore(&sdla_lock, flags);
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}
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static void sdla_clear(struct net_device *dev)
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{
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unsigned long flags;
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char *base;
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int len, addr, bytes;
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len = 65536;
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addr = 0;
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bytes = SDLA_WINDOW_SIZE;
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base = (void *) dev->mem_start;
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spin_lock_irqsave(&sdla_lock, flags);
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while(len)
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{
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SDLA_WINDOW(dev, addr);
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memset(base, 0, bytes);
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addr += bytes;
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len -= bytes;
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}
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spin_unlock_irqrestore(&sdla_lock, flags);
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}
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static char sdla_byte(struct net_device *dev, int addr)
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{
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unsigned long flags;
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char byte, *temp;
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temp = (void *) (dev->mem_start + (addr & SDLA_ADDR_MASK));
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spin_lock_irqsave(&sdla_lock, flags);
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SDLA_WINDOW(dev, addr);
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byte = *temp;
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spin_unlock_irqrestore(&sdla_lock, flags);
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return(byte);
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}
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static void sdla_stop(struct net_device *dev)
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{
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struct frad_local *flp;
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flp = dev->priv;
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switch(flp->type)
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{
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case SDLA_S502A:
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outb(SDLA_S502A_HALT, dev->base_addr + SDLA_REG_CONTROL);
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flp->state = SDLA_HALT;
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break;
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case SDLA_S502E:
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outb(SDLA_HALT, dev->base_addr + SDLA_REG_Z80_CONTROL);
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outb(SDLA_S502E_ENABLE, dev->base_addr + SDLA_REG_CONTROL);
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flp->state = SDLA_S502E_ENABLE;
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break;
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case SDLA_S507:
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flp->state &= ~SDLA_CPUEN;
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outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
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break;
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case SDLA_S508:
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flp->state &= ~SDLA_CPUEN;
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outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
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break;
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}
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}
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static void sdla_start(struct net_device *dev)
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{
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struct frad_local *flp;
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flp = dev->priv;
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switch(flp->type)
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{
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case SDLA_S502A:
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outb(SDLA_S502A_NMI, dev->base_addr + SDLA_REG_CONTROL);
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outb(SDLA_S502A_START, dev->base_addr + SDLA_REG_CONTROL);
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flp->state = SDLA_S502A_START;
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break;
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case SDLA_S502E:
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outb(SDLA_S502E_CPUEN, dev->base_addr + SDLA_REG_Z80_CONTROL);
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outb(0x00, dev->base_addr + SDLA_REG_CONTROL);
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flp->state = 0;
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break;
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case SDLA_S507:
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flp->state |= SDLA_CPUEN;
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outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
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break;
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case SDLA_S508:
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flp->state |= SDLA_CPUEN;
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outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
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break;
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}
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}
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/****************************************************
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*
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* this is used for the S502A/E cards to determine
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* the speed of the onboard CPU. Calibration is
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* necessary for the Frame Relay code uploaded
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* later. Incorrect results cause timing problems
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* with link checks & status messages
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*
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***************************************************/
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static int sdla_z80_poll(struct net_device *dev, int z80_addr, int jiffs, char resp1, char resp2)
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{
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unsigned long start, done, now;
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char resp, *temp;
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start = now = jiffies;
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done = jiffies + jiffs;
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temp = (void *)dev->mem_start;
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temp += z80_addr & SDLA_ADDR_MASK;
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resp = ~resp1;
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while (time_before(jiffies, done) && (resp != resp1) && (!resp2 || (resp != resp2)))
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{
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| 263 |
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if (jiffies != now)
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| 264 |
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{
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| 265 |
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SDLA_WINDOW(dev, z80_addr);
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now = jiffies;
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resp = *temp;
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| 268 |
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}
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| 269 |
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}
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| 270 |
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return(time_before(jiffies, done) ? jiffies - start : -1);
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| 271 |
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}
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| 272 |
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| 273 |
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/* constants for Z80 CPU speed */
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#define Z80_READY '1' /* Z80 is ready to begin */
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#define LOADER_READY '2' /* driver is ready to begin */
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| 276 |
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#define Z80_SCC_OK '3' /* SCC is on board */
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| 277 |
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#define Z80_SCC_BAD '4' /* SCC was not found */
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| 278 |
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| 279 |
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static int sdla_cpuspeed(struct net_device *dev, struct ifreq *ifr)
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| 280 |
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{
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| 281 |
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int jiffs;
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| 282 |
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char data;
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| 283 |
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| 284 |
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sdla_start(dev);
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| 285 |
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if (sdla_z80_poll(dev, 0, 3*HZ, Z80_READY, 0) < 0)
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| 286 |
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return(-EIO);
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| 287 |
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| 288 |
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data = LOADER_READY;
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| 289 |
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sdla_write(dev, 0, &data, 1);
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| 290 |
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| 291 |
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if ((jiffs = sdla_z80_poll(dev, 0, 8*HZ, Z80_SCC_OK, Z80_SCC_BAD)) < 0)
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| 292 |
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return(-EIO);
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| 293 |
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| 294 |
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sdla_stop(dev);
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| 295 |
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sdla_read(dev, 0, &data, 1);
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| 296 |
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| 297 |
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if (data == Z80_SCC_BAD)
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| 298 |
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{
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| 299 |
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printk("%s: SCC bad\n", dev->name);
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| 300 |
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return(-EIO);
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| 301 |
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}
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| 302 |
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| 303 |
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if (data != Z80_SCC_OK)
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| 304 |
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return(-EINVAL);
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| 305 |
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| 306 |
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if (jiffs < 165)
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| 307 |
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ifr->ifr_mtu = SDLA_CPU_16M;
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| 308 |
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else if (jiffs < 220)
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| 309 |
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ifr->ifr_mtu = SDLA_CPU_10M;
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| 310 |
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else if (jiffs < 258)
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| 311 |
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ifr->ifr_mtu = SDLA_CPU_8M;
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| 312 |
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else if (jiffs < 357)
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| 313 |
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ifr->ifr_mtu = SDLA_CPU_7M;
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| 314 |
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else if (jiffs < 467)
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| 315 |
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ifr->ifr_mtu = SDLA_CPU_5M;
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| 316 |
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else
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| 317 |
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ifr->ifr_mtu = SDLA_CPU_3M;
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| 318 |
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| 319 |
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return(0);
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| 320 |
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}
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| 321 |
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| 322 |
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/************************************************
|
| 323 |
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*
|
| 324 |
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* Direct interaction with the Frame Relay code
|
| 325 |
|
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* starts here.
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| 326 |
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*
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| 327 |
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************************************************/
|
| 328 |
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| 329 |
|
|
struct _dlci_stat
|
| 330 |
|
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{
|
| 331 |
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short dlci;
|
| 332 |
|
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char flags;
|
| 333 |
|
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} __attribute__((packed));
|
| 334 |
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| 335 |
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struct _frad_stat
|
| 336 |
|
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{
|
| 337 |
|
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char flags;
|
| 338 |
|
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struct _dlci_stat dlcis[SDLA_MAX_DLCI];
|
| 339 |
|
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};
|
| 340 |
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| 341 |
|
|
static void sdla_errors(struct net_device *dev, int cmd, int dlci, int ret, int len, void *data)
|
| 342 |
|
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{
|
| 343 |
|
|
struct _dlci_stat *pstatus;
|
| 344 |
|
|
short *pdlci;
|
| 345 |
|
|
int i;
|
| 346 |
|
|
char *state, line[30];
|
| 347 |
|
|
|
| 348 |
|
|
switch (ret)
|
| 349 |
|
|
{
|
| 350 |
|
|
case SDLA_RET_MODEM:
|
| 351 |
|
|
state = data;
|
| 352 |
|
|
if (*state & SDLA_MODEM_DCD_LOW)
|
| 353 |
|
|
printk(KERN_INFO "%s: Modem DCD unexpectedly low!\n", dev->name);
|
| 354 |
|
|
if (*state & SDLA_MODEM_CTS_LOW)
|
| 355 |
|
|
printk(KERN_INFO "%s: Modem CTS unexpectedly low!\n", dev->name);
|
| 356 |
|
|
/* I should probably do something about this! */
|
| 357 |
|
|
break;
|
| 358 |
|
|
|
| 359 |
|
|
case SDLA_RET_CHANNEL_OFF:
|
| 360 |
|
|
printk(KERN_INFO "%s: Channel became inoperative!\n", dev->name);
|
| 361 |
|
|
/* same here */
|
| 362 |
|
|
break;
|
| 363 |
|
|
|
| 364 |
|
|
case SDLA_RET_CHANNEL_ON:
|
| 365 |
|
|
printk(KERN_INFO "%s: Channel became operative!\n", dev->name);
|
| 366 |
|
|
/* same here */
|
| 367 |
|
|
break;
|
| 368 |
|
|
|
| 369 |
|
|
case SDLA_RET_DLCI_STATUS:
|
| 370 |
|
|
printk(KERN_INFO "%s: Status change reported by Access Node.\n", dev->name);
|
| 371 |
|
|
len /= sizeof(struct _dlci_stat);
|
| 372 |
|
|
for(pstatus = data, i=0;i < len;i++,pstatus++)
|
| 373 |
|
|
{
|
| 374 |
|
|
if (pstatus->flags & SDLA_DLCI_NEW)
|
| 375 |
|
|
state = "new";
|
| 376 |
|
|
else if (pstatus->flags & SDLA_DLCI_DELETED)
|
| 377 |
|
|
state = "deleted";
|
| 378 |
|
|
else if (pstatus->flags & SDLA_DLCI_ACTIVE)
|
| 379 |
|
|
state = "active";
|
| 380 |
|
|
else
|
| 381 |
|
|
{
|
| 382 |
|
|
sprintf(line, "unknown status: %02X", pstatus->flags);
|
| 383 |
|
|
state = line;
|
| 384 |
|
|
}
|
| 385 |
|
|
printk(KERN_INFO "%s: DLCI %i: %s.\n", dev->name, pstatus->dlci, state);
|
| 386 |
|
|
/* same here */
|
| 387 |
|
|
}
|
| 388 |
|
|
break;
|
| 389 |
|
|
|
| 390 |
|
|
case SDLA_RET_DLCI_UNKNOWN:
|
| 391 |
|
|
printk(KERN_INFO "%s: Received unknown DLCIs:", dev->name);
|
| 392 |
|
|
len /= sizeof(short);
|
| 393 |
|
|
for(pdlci = data,i=0;i < len;i++,pdlci++)
|
| 394 |
|
|
printk(" %i", *pdlci);
|
| 395 |
|
|
printk("\n");
|
| 396 |
|
|
break;
|
| 397 |
|
|
|
| 398 |
|
|
case SDLA_RET_TIMEOUT:
|
| 399 |
|
|
printk(KERN_ERR "%s: Command timed out!\n", dev->name);
|
| 400 |
|
|
break;
|
| 401 |
|
|
|
| 402 |
|
|
case SDLA_RET_BUF_OVERSIZE:
|
| 403 |
|
|
printk(KERN_INFO "%s: Bc/CIR overflow, acceptable size is %i\n", dev->name, len);
|
| 404 |
|
|
break;
|
| 405 |
|
|
|
| 406 |
|
|
case SDLA_RET_BUF_TOO_BIG:
|
| 407 |
|
|
printk(KERN_INFO "%s: Buffer size over specified max of %i\n", dev->name, len);
|
| 408 |
|
|
break;
|
| 409 |
|
|
|
| 410 |
|
|
case SDLA_RET_CHANNEL_INACTIVE:
|
| 411 |
|
|
case SDLA_RET_DLCI_INACTIVE:
|
| 412 |
|
|
case SDLA_RET_CIR_OVERFLOW:
|
| 413 |
|
|
case SDLA_RET_NO_BUFS:
|
| 414 |
|
|
if (cmd == SDLA_INFORMATION_WRITE)
|
| 415 |
|
|
break;
|
| 416 |
|
|
|
| 417 |
|
|
default:
|
| 418 |
|
|
printk(KERN_DEBUG "%s: Cmd 0x%2.2X generated return code 0x%2.2X\n", dev->name, cmd, ret);
|
| 419 |
|
|
/* Further processing could be done here */
|
| 420 |
|
|
break;
|
| 421 |
|
|
}
|
| 422 |
|
|
}
|
| 423 |
|
|
|
| 424 |
|
|
static int sdla_cmd(struct net_device *dev, int cmd, short dlci, short flags,
|
| 425 |
|
|
void *inbuf, short inlen, void *outbuf, short *outlen)
|
| 426 |
|
|
{
|
| 427 |
|
|
static struct _frad_stat status;
|
| 428 |
|
|
struct frad_local *flp;
|
| 429 |
|
|
struct sdla_cmd *cmd_buf;
|
| 430 |
|
|
unsigned long pflags;
|
| 431 |
|
|
unsigned long jiffs;
|
| 432 |
|
|
int ret, waiting, len;
|
| 433 |
|
|
long window;
|
| 434 |
|
|
|
| 435 |
|
|
flp = dev->priv;
|
| 436 |
|
|
window = flp->type == SDLA_S508 ? SDLA_508_CMD_BUF : SDLA_502_CMD_BUF;
|
| 437 |
|
|
cmd_buf = (struct sdla_cmd *)(dev->mem_start + (window & SDLA_ADDR_MASK));
|
| 438 |
|
|
ret = 0;
|
| 439 |
|
|
len = 0;
|
| 440 |
|
|
jiffs = jiffies + HZ; /* 1 second is plenty */
|
| 441 |
|
|
|
| 442 |
|
|
spin_lock_irqsave(&sdla_lock, pflags);
|
| 443 |
|
|
SDLA_WINDOW(dev, window);
|
| 444 |
|
|
cmd_buf->cmd = cmd;
|
| 445 |
|
|
cmd_buf->dlci = dlci;
|
| 446 |
|
|
cmd_buf->flags = flags;
|
| 447 |
|
|
|
| 448 |
|
|
if (inbuf)
|
| 449 |
|
|
memcpy(cmd_buf->data, inbuf, inlen);
|
| 450 |
|
|
|
| 451 |
|
|
cmd_buf->length = inlen;
|
| 452 |
|
|
|
| 453 |
|
|
cmd_buf->opp_flag = 1;
|
| 454 |
|
|
spin_unlock_irqrestore(&sdla_lock, pflags);
|
| 455 |
|
|
|
| 456 |
|
|
waiting = 1;
|
| 457 |
|
|
len = 0;
|
| 458 |
|
|
while (waiting && time_before_eq(jiffies, jiffs))
|
| 459 |
|
|
{
|
| 460 |
|
|
if (waiting++ % 3)
|
| 461 |
|
|
{
|
| 462 |
|
|
spin_lock_irqsave(&sdla_lock, pflags);
|
| 463 |
|
|
SDLA_WINDOW(dev, window);
|
| 464 |
|
|
waiting = ((volatile int)(cmd_buf->opp_flag));
|
| 465 |
|
|
spin_unlock_irqrestore(&sdla_lock, pflags);
|
| 466 |
|
|
}
|
| 467 |
|
|
}
|
| 468 |
|
|
|
| 469 |
|
|
if (!waiting)
|
| 470 |
|
|
{
|
| 471 |
|
|
|
| 472 |
|
|
spin_lock_irqsave(&sdla_lock, pflags);
|
| 473 |
|
|
SDLA_WINDOW(dev, window);
|
| 474 |
|
|
ret = cmd_buf->retval;
|
| 475 |
|
|
len = cmd_buf->length;
|
| 476 |
|
|
if (outbuf && outlen)
|
| 477 |
|
|
{
|
| 478 |
|
|
*outlen = *outlen >= len ? len : *outlen;
|
| 479 |
|
|
|
| 480 |
|
|
if (*outlen)
|
| 481 |
|
|
memcpy(outbuf, cmd_buf->data, *outlen);
|
| 482 |
|
|
}
|
| 483 |
|
|
|
| 484 |
|
|
/* This is a local copy that's used for error handling */
|
| 485 |
|
|
if (ret)
|
| 486 |
|
|
memcpy(&status, cmd_buf->data, len > sizeof(status) ? sizeof(status) : len);
|
| 487 |
|
|
|
| 488 |
|
|
spin_unlock_irqrestore(&sdla_lock, pflags);
|
| 489 |
|
|
}
|
| 490 |
|
|
else
|
| 491 |
|
|
ret = SDLA_RET_TIMEOUT;
|
| 492 |
|
|
|
| 493 |
|
|
if (ret != SDLA_RET_OK)
|
| 494 |
|
|
sdla_errors(dev, cmd, dlci, ret, len, &status);
|
| 495 |
|
|
|
| 496 |
|
|
return(ret);
|
| 497 |
|
|
}
|
| 498 |
|
|
|
| 499 |
|
|
/***********************************************
|
| 500 |
|
|
*
|
| 501 |
|
|
* these functions are called by the DLCI driver
|
| 502 |
|
|
*
|
| 503 |
|
|
***********************************************/
|
| 504 |
|
|
|
| 505 |
|
|
static int sdla_reconfig(struct net_device *dev);
|
| 506 |
|
|
|
| 507 |
|
|
static int sdla_activate(struct net_device *slave, struct net_device *master)
|
| 508 |
|
|
{
|
| 509 |
|
|
struct frad_local *flp;
|
| 510 |
|
|
int i;
|
| 511 |
|
|
|
| 512 |
|
|
flp = slave->priv;
|
| 513 |
|
|
|
| 514 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 515 |
|
|
if (flp->master[i] == master)
|
| 516 |
|
|
break;
|
| 517 |
|
|
|
| 518 |
|
|
if (i == CONFIG_DLCI_MAX)
|
| 519 |
|
|
return(-ENODEV);
|
| 520 |
|
|
|
| 521 |
|
|
flp->dlci[i] = abs(flp->dlci[i]);
|
| 522 |
|
|
|
| 523 |
|
|
if (netif_running(slave) && (flp->config.station == FRAD_STATION_NODE))
|
| 524 |
|
|
sdla_cmd(slave, SDLA_ACTIVATE_DLCI, 0, 0, &flp->dlci[i], sizeof(short), NULL, NULL);
|
| 525 |
|
|
|
| 526 |
|
|
return(0);
|
| 527 |
|
|
}
|
| 528 |
|
|
|
| 529 |
|
|
static int sdla_deactivate(struct net_device *slave, struct net_device *master)
|
| 530 |
|
|
{
|
| 531 |
|
|
struct frad_local *flp;
|
| 532 |
|
|
int i;
|
| 533 |
|
|
|
| 534 |
|
|
flp = slave->priv;
|
| 535 |
|
|
|
| 536 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 537 |
|
|
if (flp->master[i] == master)
|
| 538 |
|
|
break;
|
| 539 |
|
|
|
| 540 |
|
|
if (i == CONFIG_DLCI_MAX)
|
| 541 |
|
|
return(-ENODEV);
|
| 542 |
|
|
|
| 543 |
|
|
flp->dlci[i] = -abs(flp->dlci[i]);
|
| 544 |
|
|
|
| 545 |
|
|
if (netif_running(slave) && (flp->config.station == FRAD_STATION_NODE))
|
| 546 |
|
|
sdla_cmd(slave, SDLA_DEACTIVATE_DLCI, 0, 0, &flp->dlci[i], sizeof(short), NULL, NULL);
|
| 547 |
|
|
|
| 548 |
|
|
return(0);
|
| 549 |
|
|
}
|
| 550 |
|
|
|
| 551 |
|
|
static int sdla_assoc(struct net_device *slave, struct net_device *master)
|
| 552 |
|
|
{
|
| 553 |
|
|
struct frad_local *flp;
|
| 554 |
|
|
int i;
|
| 555 |
|
|
|
| 556 |
|
|
if (master->type != ARPHRD_DLCI)
|
| 557 |
|
|
return(-EINVAL);
|
| 558 |
|
|
|
| 559 |
|
|
flp = slave->priv;
|
| 560 |
|
|
|
| 561 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 562 |
|
|
{
|
| 563 |
|
|
if (!flp->master[i])
|
| 564 |
|
|
break;
|
| 565 |
|
|
if (abs(flp->dlci[i]) == *(short *)(master->dev_addr))
|
| 566 |
|
|
return(-EADDRINUSE);
|
| 567 |
|
|
}
|
| 568 |
|
|
|
| 569 |
|
|
if (i == CONFIG_DLCI_MAX)
|
| 570 |
|
|
return(-EMLINK); /* #### Alan: Comments on this ?? */
|
| 571 |
|
|
|
| 572 |
|
|
|
| 573 |
|
|
flp->master[i] = master;
|
| 574 |
|
|
flp->dlci[i] = -*(short *)(master->dev_addr);
|
| 575 |
|
|
master->mtu = slave->mtu;
|
| 576 |
|
|
|
| 577 |
|
|
if (netif_running(slave)) {
|
| 578 |
|
|
if (flp->config.station == FRAD_STATION_CPE)
|
| 579 |
|
|
sdla_reconfig(slave);
|
| 580 |
|
|
else
|
| 581 |
|
|
sdla_cmd(slave, SDLA_ADD_DLCI, 0, 0, master->dev_addr, sizeof(short), NULL, NULL);
|
| 582 |
|
|
}
|
| 583 |
|
|
|
| 584 |
|
|
return(0);
|
| 585 |
|
|
}
|
| 586 |
|
|
|
| 587 |
|
|
static int sdla_deassoc(struct net_device *slave, struct net_device *master)
|
| 588 |
|
|
{
|
| 589 |
|
|
struct frad_local *flp;
|
| 590 |
|
|
int i;
|
| 591 |
|
|
|
| 592 |
|
|
flp = slave->priv;
|
| 593 |
|
|
|
| 594 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 595 |
|
|
if (flp->master[i] == master)
|
| 596 |
|
|
break;
|
| 597 |
|
|
|
| 598 |
|
|
if (i == CONFIG_DLCI_MAX)
|
| 599 |
|
|
return(-ENODEV);
|
| 600 |
|
|
|
| 601 |
|
|
flp->master[i] = NULL;
|
| 602 |
|
|
flp->dlci[i] = 0;
|
| 603 |
|
|
|
| 604 |
|
|
|
| 605 |
|
|
if (netif_running(slave)) {
|
| 606 |
|
|
if (flp->config.station == FRAD_STATION_CPE)
|
| 607 |
|
|
sdla_reconfig(slave);
|
| 608 |
|
|
else
|
| 609 |
|
|
sdla_cmd(slave, SDLA_DELETE_DLCI, 0, 0, master->dev_addr, sizeof(short), NULL, NULL);
|
| 610 |
|
|
}
|
| 611 |
|
|
|
| 612 |
|
|
return(0);
|
| 613 |
|
|
}
|
| 614 |
|
|
|
| 615 |
|
|
static int sdla_dlci_conf(struct net_device *slave, struct net_device *master, int get)
|
| 616 |
|
|
{
|
| 617 |
|
|
struct frad_local *flp;
|
| 618 |
|
|
struct dlci_local *dlp;
|
| 619 |
|
|
int i;
|
| 620 |
|
|
short len, ret;
|
| 621 |
|
|
|
| 622 |
|
|
flp = slave->priv;
|
| 623 |
|
|
|
| 624 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 625 |
|
|
if (flp->master[i] == master)
|
| 626 |
|
|
break;
|
| 627 |
|
|
|
| 628 |
|
|
if (i == CONFIG_DLCI_MAX)
|
| 629 |
|
|
return(-ENODEV);
|
| 630 |
|
|
|
| 631 |
|
|
dlp = master->priv;
|
| 632 |
|
|
|
| 633 |
|
|
ret = SDLA_RET_OK;
|
| 634 |
|
|
len = sizeof(struct dlci_conf);
|
| 635 |
|
|
if (netif_running(slave)) {
|
| 636 |
|
|
if (get)
|
| 637 |
|
|
ret = sdla_cmd(slave, SDLA_READ_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0,
|
| 638 |
|
|
NULL, 0, &dlp->config, &len);
|
| 639 |
|
|
else
|
| 640 |
|
|
ret = sdla_cmd(slave, SDLA_SET_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0,
|
| 641 |
|
|
&dlp->config, sizeof(struct dlci_conf) - 4 * sizeof(short), NULL, NULL);
|
| 642 |
|
|
}
|
| 643 |
|
|
|
| 644 |
|
|
return(ret == SDLA_RET_OK ? 0 : -EIO);
|
| 645 |
|
|
}
|
| 646 |
|
|
|
| 647 |
|
|
/**************************
|
| 648 |
|
|
*
|
| 649 |
|
|
* now for the Linux driver
|
| 650 |
|
|
*
|
| 651 |
|
|
**************************/
|
| 652 |
|
|
|
| 653 |
|
|
/* NOTE: the DLCI driver deals with freeing the SKB!! */
|
| 654 |
|
|
static int sdla_transmit(struct sk_buff *skb, struct net_device *dev)
|
| 655 |
|
|
{
|
| 656 |
|
|
struct frad_local *flp;
|
| 657 |
|
|
int ret, addr, accept, i;
|
| 658 |
|
|
short size;
|
| 659 |
|
|
unsigned long flags;
|
| 660 |
|
|
struct buf_entry *pbuf;
|
| 661 |
|
|
|
| 662 |
|
|
flp = dev->priv;
|
| 663 |
|
|
ret = 0;
|
| 664 |
|
|
accept = 1;
|
| 665 |
|
|
|
| 666 |
|
|
netif_stop_queue(dev);
|
| 667 |
|
|
|
| 668 |
|
|
/*
|
| 669 |
|
|
* stupid GateD insists on setting up the multicast router thru us
|
| 670 |
|
|
* and we're ill equipped to handle a non Frame Relay packet at this
|
| 671 |
|
|
* time!
|
| 672 |
|
|
*/
|
| 673 |
|
|
|
| 674 |
|
|
accept = 1;
|
| 675 |
|
|
switch (dev->type)
|
| 676 |
|
|
{
|
| 677 |
|
|
case ARPHRD_FRAD:
|
| 678 |
|
|
if (skb->dev->type != ARPHRD_DLCI)
|
| 679 |
|
|
{
|
| 680 |
|
|
printk(KERN_WARNING "%s: Non DLCI device, type %i, tried to send on FRAD module.\n", dev->name, skb->dev->type);
|
| 681 |
|
|
accept = 0;
|
| 682 |
|
|
}
|
| 683 |
|
|
break;
|
| 684 |
|
|
default:
|
| 685 |
|
|
printk(KERN_WARNING "%s: unknown firmware type 0x%4.4X\n", dev->name, dev->type);
|
| 686 |
|
|
accept = 0;
|
| 687 |
|
|
break;
|
| 688 |
|
|
}
|
| 689 |
|
|
if (accept)
|
| 690 |
|
|
{
|
| 691 |
|
|
/* this is frame specific, but till there's a PPP module, it's the default */
|
| 692 |
|
|
switch (flp->type)
|
| 693 |
|
|
{
|
| 694 |
|
|
case SDLA_S502A:
|
| 695 |
|
|
case SDLA_S502E:
|
| 696 |
|
|
ret = sdla_cmd(dev, SDLA_INFORMATION_WRITE, *(short *)(skb->dev->dev_addr), 0, skb->data, skb->len, NULL, NULL);
|
| 697 |
|
|
break;
|
| 698 |
|
|
case SDLA_S508:
|
| 699 |
|
|
size = sizeof(addr);
|
| 700 |
|
|
ret = sdla_cmd(dev, SDLA_INFORMATION_WRITE, *(short *)(skb->dev->dev_addr), 0, NULL, skb->len, &addr, &size);
|
| 701 |
|
|
if (ret == SDLA_RET_OK)
|
| 702 |
|
|
{
|
| 703 |
|
|
|
| 704 |
|
|
spin_lock_irqsave(&sdla_lock, flags);
|
| 705 |
|
|
SDLA_WINDOW(dev, addr);
|
| 706 |
|
|
pbuf = (void *)(((int) dev->mem_start) + (addr & SDLA_ADDR_MASK));
|
| 707 |
|
|
__sdla_write(dev, pbuf->buf_addr, skb->data, skb->len);
|
| 708 |
|
|
SDLA_WINDOW(dev, addr);
|
| 709 |
|
|
pbuf->opp_flag = 1;
|
| 710 |
|
|
spin_unlock_irqrestore(&sdla_lock, flags);
|
| 711 |
|
|
}
|
| 712 |
|
|
break;
|
| 713 |
|
|
}
|
| 714 |
|
|
switch (ret)
|
| 715 |
|
|
{
|
| 716 |
|
|
case SDLA_RET_OK:
|
| 717 |
|
|
flp->stats.tx_packets++;
|
| 718 |
|
|
ret = DLCI_RET_OK;
|
| 719 |
|
|
break;
|
| 720 |
|
|
|
| 721 |
|
|
case SDLA_RET_CIR_OVERFLOW:
|
| 722 |
|
|
case SDLA_RET_BUF_OVERSIZE:
|
| 723 |
|
|
case SDLA_RET_NO_BUFS:
|
| 724 |
|
|
flp->stats.tx_dropped++;
|
| 725 |
|
|
ret = DLCI_RET_DROP;
|
| 726 |
|
|
break;
|
| 727 |
|
|
|
| 728 |
|
|
default:
|
| 729 |
|
|
flp->stats.tx_errors++;
|
| 730 |
|
|
ret = DLCI_RET_ERR;
|
| 731 |
|
|
break;
|
| 732 |
|
|
}
|
| 733 |
|
|
}
|
| 734 |
|
|
netif_wake_queue(dev);
|
| 735 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 736 |
|
|
{
|
| 737 |
|
|
if(flp->master[i]!=NULL)
|
| 738 |
|
|
netif_wake_queue(flp->master[i]);
|
| 739 |
|
|
}
|
| 740 |
|
|
return(ret);
|
| 741 |
|
|
}
|
| 742 |
|
|
|
| 743 |
|
|
static void sdla_receive(struct net_device *dev)
|
| 744 |
|
|
{
|
| 745 |
|
|
struct net_device *master;
|
| 746 |
|
|
struct frad_local *flp;
|
| 747 |
|
|
struct dlci_local *dlp;
|
| 748 |
|
|
struct sk_buff *skb;
|
| 749 |
|
|
|
| 750 |
|
|
struct sdla_cmd *cmd;
|
| 751 |
|
|
struct buf_info *pbufi;
|
| 752 |
|
|
struct buf_entry *pbuf;
|
| 753 |
|
|
|
| 754 |
|
|
unsigned long flags;
|
| 755 |
|
|
int i=0, received, success, addr, buf_base, buf_top;
|
| 756 |
|
|
short dlci, len, len2, split;
|
| 757 |
|
|
|
| 758 |
|
|
flp = dev->priv;
|
| 759 |
|
|
success = 1;
|
| 760 |
|
|
received = addr = buf_top = buf_base = 0;
|
| 761 |
|
|
len = dlci = 0;
|
| 762 |
|
|
skb = NULL;
|
| 763 |
|
|
master = NULL;
|
| 764 |
|
|
cmd = NULL;
|
| 765 |
|
|
pbufi = NULL;
|
| 766 |
|
|
pbuf = NULL;
|
| 767 |
|
|
|
| 768 |
|
|
spin_lock_irqsave(&sdla_lock, flags);
|
| 769 |
|
|
|
| 770 |
|
|
switch (flp->type)
|
| 771 |
|
|
{
|
| 772 |
|
|
case SDLA_S502A:
|
| 773 |
|
|
case SDLA_S502E:
|
| 774 |
|
|
cmd = (void *) (dev->mem_start + (SDLA_502_RCV_BUF & SDLA_ADDR_MASK));
|
| 775 |
|
|
SDLA_WINDOW(dev, SDLA_502_RCV_BUF);
|
| 776 |
|
|
success = cmd->opp_flag;
|
| 777 |
|
|
if (!success)
|
| 778 |
|
|
break;
|
| 779 |
|
|
|
| 780 |
|
|
dlci = cmd->dlci;
|
| 781 |
|
|
len = cmd->length;
|
| 782 |
|
|
break;
|
| 783 |
|
|
|
| 784 |
|
|
case SDLA_S508:
|
| 785 |
|
|
pbufi = (void *) (dev->mem_start + (SDLA_508_RXBUF_INFO & SDLA_ADDR_MASK));
|
| 786 |
|
|
SDLA_WINDOW(dev, SDLA_508_RXBUF_INFO);
|
| 787 |
|
|
pbuf = (void *) (dev->mem_start + ((pbufi->rse_base + flp->buffer * sizeof(struct buf_entry)) & SDLA_ADDR_MASK));
|
| 788 |
|
|
success = pbuf->opp_flag;
|
| 789 |
|
|
if (!success)
|
| 790 |
|
|
break;
|
| 791 |
|
|
|
| 792 |
|
|
buf_top = pbufi->buf_top;
|
| 793 |
|
|
buf_base = pbufi->buf_base;
|
| 794 |
|
|
dlci = pbuf->dlci;
|
| 795 |
|
|
len = pbuf->length;
|
| 796 |
|
|
addr = pbuf->buf_addr;
|
| 797 |
|
|
break;
|
| 798 |
|
|
}
|
| 799 |
|
|
|
| 800 |
|
|
/* common code, find the DLCI and get the SKB */
|
| 801 |
|
|
if (success)
|
| 802 |
|
|
{
|
| 803 |
|
|
for (i=0;i<CONFIG_DLCI_MAX;i++)
|
| 804 |
|
|
if (flp->dlci[i] == dlci)
|
| 805 |
|
|
break;
|
| 806 |
|
|
|
| 807 |
|
|
if (i == CONFIG_DLCI_MAX)
|
| 808 |
|
|
{
|
| 809 |
|
|
printk(KERN_NOTICE "%s: Received packet from invalid DLCI %i, ignoring.", dev->name, dlci);
|
| 810 |
|
|
flp->stats.rx_errors++;
|
| 811 |
|
|
success = 0;
|
| 812 |
|
|
}
|
| 813 |
|
|
}
|
| 814 |
|
|
|
| 815 |
|
|
if (success)
|
| 816 |
|
|
{
|
| 817 |
|
|
master = flp->master[i];
|
| 818 |
|
|
skb = dev_alloc_skb(len + sizeof(struct frhdr));
|
| 819 |
|
|
if (skb == NULL)
|
| 820 |
|
|
{
|
| 821 |
|
|
printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
|
| 822 |
|
|
flp->stats.rx_dropped++;
|
| 823 |
|
|
success = 0;
|
| 824 |
|
|
}
|
| 825 |
|
|
else
|
| 826 |
|
|
skb_reserve(skb, sizeof(struct frhdr));
|
| 827 |
|
|
}
|
| 828 |
|
|
|
| 829 |
|
|
/* pick up the data */
|
| 830 |
|
|
switch (flp->type)
|
| 831 |
|
|
{
|
| 832 |
|
|
case SDLA_S502A:
|
| 833 |
|
|
case SDLA_S502E:
|
| 834 |
|
|
if (success)
|
| 835 |
|
|
__sdla_read(dev, SDLA_502_RCV_BUF + SDLA_502_DATA_OFS, skb_put(skb,len), len);
|
| 836 |
|
|
|
| 837 |
|
|
SDLA_WINDOW(dev, SDLA_502_RCV_BUF);
|
| 838 |
|
|
cmd->opp_flag = 0;
|
| 839 |
|
|
break;
|
| 840 |
|
|
|
| 841 |
|
|
case SDLA_S508:
|
| 842 |
|
|
if (success)
|
| 843 |
|
|
{
|
| 844 |
|
|
/* is this buffer split off the end of the internal ring buffer */
|
| 845 |
|
|
split = addr + len > buf_top + 1 ? len - (buf_top - addr + 1) : 0;
|
| 846 |
|
|
len2 = len - split;
|
| 847 |
|
|
|
| 848 |
|
|
__sdla_read(dev, addr, skb_put(skb, len2), len2);
|
| 849 |
|
|
if (split)
|
| 850 |
|
|
__sdla_read(dev, buf_base, skb_put(skb, split), split);
|
| 851 |
|
|
}
|
| 852 |
|
|
|
| 853 |
|
|
/* increment the buffer we're looking at */
|
| 854 |
|
|
SDLA_WINDOW(dev, SDLA_508_RXBUF_INFO);
|
| 855 |
|
|
flp->buffer = (flp->buffer + 1) % pbufi->rse_num;
|
| 856 |
|
|
pbuf->opp_flag = 0;
|
| 857 |
|
|
break;
|
| 858 |
|
|
}
|
| 859 |
|
|
|
| 860 |
|
|
if (success)
|
| 861 |
|
|
{
|
| 862 |
|
|
flp->stats.rx_packets++;
|
| 863 |
|
|
dlp = master->priv;
|
| 864 |
|
|
(*dlp->receive)(skb, master);
|
| 865 |
|
|
}
|
| 866 |
|
|
|
| 867 |
|
|
spin_unlock_irqrestore(&sdla_lock, flags);
|
| 868 |
|
|
}
|
| 869 |
|
|
|
| 870 |
|
|
static irqreturn_t sdla_isr(int irq, void *dev_id)
|
| 871 |
|
|
{
|
| 872 |
|
|
struct net_device *dev;
|
| 873 |
|
|
struct frad_local *flp;
|
| 874 |
|
|
char byte;
|
| 875 |
|
|
|
| 876 |
|
|
dev = dev_id;
|
| 877 |
|
|
|
| 878 |
|
|
flp = netdev_priv(dev);
|
| 879 |
|
|
|
| 880 |
|
|
if (!flp->initialized)
|
| 881 |
|
|
{
|
| 882 |
|
|
printk(KERN_WARNING "%s: irq %d for uninitialized device.\n", dev->name, irq);
|
| 883 |
|
|
return IRQ_NONE;
|
| 884 |
|
|
}
|
| 885 |
|
|
|
| 886 |
|
|
byte = sdla_byte(dev, flp->type == SDLA_S508 ? SDLA_508_IRQ_INTERFACE : SDLA_502_IRQ_INTERFACE);
|
| 887 |
|
|
switch (byte)
|
| 888 |
|
|
{
|
| 889 |
|
|
case SDLA_INTR_RX:
|
| 890 |
|
|
sdla_receive(dev);
|
| 891 |
|
|
break;
|
| 892 |
|
|
|
| 893 |
|
|
/* the command will get an error return, which is processed above */
|
| 894 |
|
|
case SDLA_INTR_MODEM:
|
| 895 |
|
|
case SDLA_INTR_STATUS:
|
| 896 |
|
|
sdla_cmd(dev, SDLA_READ_DLC_STATUS, 0, 0, NULL, 0, NULL, NULL);
|
| 897 |
|
|
break;
|
| 898 |
|
|
|
| 899 |
|
|
case SDLA_INTR_TX:
|
| 900 |
|
|
case SDLA_INTR_COMPLETE:
|
| 901 |
|
|
case SDLA_INTR_TIMER:
|
| 902 |
|
|
printk(KERN_WARNING "%s: invalid irq flag 0x%02X.\n", dev->name, byte);
|
| 903 |
|
|
break;
|
| 904 |
|
|
}
|
| 905 |
|
|
|
| 906 |
|
|
/* the S502E requires a manual acknowledgement of the interrupt */
|
| 907 |
|
|
if (flp->type == SDLA_S502E)
|
| 908 |
|
|
{
|
| 909 |
|
|
flp->state &= ~SDLA_S502E_INTACK;
|
| 910 |
|
|
outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
|
| 911 |
|
|
flp->state |= SDLA_S502E_INTACK;
|
| 912 |
|
|
outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
|
| 913 |
|
|
}
|
| 914 |
|
|
|
| 915 |
|
|
/* this clears the byte, informing the Z80 we're done */
|
| 916 |
|
|
byte = 0;
|
| 917 |
|
|
sdla_write(dev, flp->type == SDLA_S508 ? SDLA_508_IRQ_INTERFACE : SDLA_502_IRQ_INTERFACE, &byte, sizeof(byte));
|
| 918 |
|
|
return IRQ_HANDLED;
|
| 919 |
|
|
}
|
| 920 |
|
|
|
| 921 |
|
|
static void sdla_poll(unsigned long device)
|
| 922 |
|
|
{
|
| 923 |
|
|
struct net_device *dev;
|
| 924 |
|
|
struct frad_local *flp;
|
| 925 |
|
|
|
| 926 |
|
|
dev = (struct net_device *) device;
|
| 927 |
|
|
flp = dev->priv;
|
| 928 |
|
|
|
| 929 |
|
|
if (sdla_byte(dev, SDLA_502_RCV_BUF))
|
| 930 |
|
|
sdla_receive(dev);
|
| 931 |
|
|
|
| 932 |
|
|
flp->timer.expires = 1;
|
| 933 |
|
|
add_timer(&flp->timer);
|
| 934 |
|
|
}
|
| 935 |
|
|
|
| 936 |
|
|
static int sdla_close(struct net_device *dev)
|
| 937 |
|
|
{
|
| 938 |
|
|
struct frad_local *flp;
|
| 939 |
|
|
struct intr_info intr;
|
| 940 |
|
|
int len, i;
|
| 941 |
|
|
short dlcis[CONFIG_DLCI_MAX];
|
| 942 |
|
|
|
| 943 |
|
|
flp = dev->priv;
|
| 944 |
|
|
|
| 945 |
|
|
len = 0;
|
| 946 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 947 |
|
|
if (flp->dlci[i])
|
| 948 |
|
|
dlcis[len++] = abs(flp->dlci[i]);
|
| 949 |
|
|
len *= 2;
|
| 950 |
|
|
|
| 951 |
|
|
if (flp->config.station == FRAD_STATION_NODE)
|
| 952 |
|
|
{
|
| 953 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 954 |
|
|
if (flp->dlci[i] > 0)
|
| 955 |
|
|
sdla_cmd(dev, SDLA_DEACTIVATE_DLCI, 0, 0, dlcis, len, NULL, NULL);
|
| 956 |
|
|
sdla_cmd(dev, SDLA_DELETE_DLCI, 0, 0, &flp->dlci[i], sizeof(flp->dlci[i]), NULL, NULL);
|
| 957 |
|
|
}
|
| 958 |
|
|
|
| 959 |
|
|
memset(&intr, 0, sizeof(intr));
|
| 960 |
|
|
/* let's start up the reception */
|
| 961 |
|
|
switch(flp->type)
|
| 962 |
|
|
{
|
| 963 |
|
|
case SDLA_S502A:
|
| 964 |
|
|
del_timer(&flp->timer);
|
| 965 |
|
|
break;
|
| 966 |
|
|
|
| 967 |
|
|
case SDLA_S502E:
|
| 968 |
|
|
sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(char) + sizeof(short), NULL, NULL);
|
| 969 |
|
|
flp->state &= ~SDLA_S502E_INTACK;
|
| 970 |
|
|
outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
|
| 971 |
|
|
break;
|
| 972 |
|
|
|
| 973 |
|
|
case SDLA_S507:
|
| 974 |
|
|
break;
|
| 975 |
|
|
|
| 976 |
|
|
case SDLA_S508:
|
| 977 |
|
|
sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(struct intr_info), NULL, NULL);
|
| 978 |
|
|
flp->state &= ~SDLA_S508_INTEN;
|
| 979 |
|
|
outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
|
| 980 |
|
|
break;
|
| 981 |
|
|
}
|
| 982 |
|
|
|
| 983 |
|
|
sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
|
| 984 |
|
|
|
| 985 |
|
|
netif_stop_queue(dev);
|
| 986 |
|
|
|
| 987 |
|
|
return(0);
|
| 988 |
|
|
}
|
| 989 |
|
|
|
| 990 |
|
|
struct conf_data {
|
| 991 |
|
|
struct frad_conf config;
|
| 992 |
|
|
short dlci[CONFIG_DLCI_MAX];
|
| 993 |
|
|
};
|
| 994 |
|
|
|
| 995 |
|
|
static int sdla_open(struct net_device *dev)
|
| 996 |
|
|
{
|
| 997 |
|
|
struct frad_local *flp;
|
| 998 |
|
|
struct dlci_local *dlp;
|
| 999 |
|
|
struct conf_data data;
|
| 1000 |
|
|
struct intr_info intr;
|
| 1001 |
|
|
int len, i;
|
| 1002 |
|
|
char byte;
|
| 1003 |
|
|
|
| 1004 |
|
|
flp = dev->priv;
|
| 1005 |
|
|
|
| 1006 |
|
|
if (!flp->initialized)
|
| 1007 |
|
|
return(-EPERM);
|
| 1008 |
|
|
|
| 1009 |
|
|
if (!flp->configured)
|
| 1010 |
|
|
return(-EPERM);
|
| 1011 |
|
|
|
| 1012 |
|
|
/* time to send in the configuration */
|
| 1013 |
|
|
len = 0;
|
| 1014 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 1015 |
|
|
if (flp->dlci[i])
|
| 1016 |
|
|
data.dlci[len++] = abs(flp->dlci[i]);
|
| 1017 |
|
|
len *= 2;
|
| 1018 |
|
|
|
| 1019 |
|
|
memcpy(&data.config, &flp->config, sizeof(struct frad_conf));
|
| 1020 |
|
|
len += sizeof(struct frad_conf);
|
| 1021 |
|
|
|
| 1022 |
|
|
sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
|
| 1023 |
|
|
sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, 0, 0, &data, len, NULL, NULL);
|
| 1024 |
|
|
|
| 1025 |
|
|
if (flp->type == SDLA_S508)
|
| 1026 |
|
|
flp->buffer = 0;
|
| 1027 |
|
|
|
| 1028 |
|
|
sdla_cmd(dev, SDLA_ENABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
|
| 1029 |
|
|
|
| 1030 |
|
|
/* let's start up the reception */
|
| 1031 |
|
|
memset(&intr, 0, sizeof(intr));
|
| 1032 |
|
|
switch(flp->type)
|
| 1033 |
|
|
{
|
| 1034 |
|
|
case SDLA_S502A:
|
| 1035 |
|
|
flp->timer.expires = 1;
|
| 1036 |
|
|
add_timer(&flp->timer);
|
| 1037 |
|
|
break;
|
| 1038 |
|
|
|
| 1039 |
|
|
case SDLA_S502E:
|
| 1040 |
|
|
flp->state |= SDLA_S502E_ENABLE;
|
| 1041 |
|
|
outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
|
| 1042 |
|
|
flp->state |= SDLA_S502E_INTACK;
|
| 1043 |
|
|
outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
|
| 1044 |
|
|
byte = 0;
|
| 1045 |
|
|
sdla_write(dev, SDLA_502_IRQ_INTERFACE, &byte, sizeof(byte));
|
| 1046 |
|
|
intr.flags = SDLA_INTR_RX | SDLA_INTR_STATUS | SDLA_INTR_MODEM;
|
| 1047 |
|
|
sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(char) + sizeof(short), NULL, NULL);
|
| 1048 |
|
|
break;
|
| 1049 |
|
|
|
| 1050 |
|
|
case SDLA_S507:
|
| 1051 |
|
|
break;
|
| 1052 |
|
|
|
| 1053 |
|
|
case SDLA_S508:
|
| 1054 |
|
|
flp->state |= SDLA_S508_INTEN;
|
| 1055 |
|
|
outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
|
| 1056 |
|
|
byte = 0;
|
| 1057 |
|
|
sdla_write(dev, SDLA_508_IRQ_INTERFACE, &byte, sizeof(byte));
|
| 1058 |
|
|
intr.flags = SDLA_INTR_RX | SDLA_INTR_STATUS | SDLA_INTR_MODEM;
|
| 1059 |
|
|
intr.irq = dev->irq;
|
| 1060 |
|
|
sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(struct intr_info), NULL, NULL);
|
| 1061 |
|
|
break;
|
| 1062 |
|
|
}
|
| 1063 |
|
|
|
| 1064 |
|
|
if (flp->config.station == FRAD_STATION_CPE)
|
| 1065 |
|
|
{
|
| 1066 |
|
|
byte = SDLA_ICS_STATUS_ENQ;
|
| 1067 |
|
|
sdla_cmd(dev, SDLA_ISSUE_IN_CHANNEL_SIGNAL, 0, 0, &byte, sizeof(byte), NULL, NULL);
|
| 1068 |
|
|
}
|
| 1069 |
|
|
else
|
| 1070 |
|
|
{
|
| 1071 |
|
|
sdla_cmd(dev, SDLA_ADD_DLCI, 0, 0, data.dlci, len - sizeof(struct frad_conf), NULL, NULL);
|
| 1072 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 1073 |
|
|
if (flp->dlci[i] > 0)
|
| 1074 |
|
|
sdla_cmd(dev, SDLA_ACTIVATE_DLCI, 0, 0, &flp->dlci[i], 2*sizeof(flp->dlci[i]), NULL, NULL);
|
| 1075 |
|
|
}
|
| 1076 |
|
|
|
| 1077 |
|
|
/* configure any specific DLCI settings */
|
| 1078 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 1079 |
|
|
if (flp->dlci[i])
|
| 1080 |
|
|
{
|
| 1081 |
|
|
dlp = flp->master[i]->priv;
|
| 1082 |
|
|
if (dlp->configured)
|
| 1083 |
|
|
sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0, &dlp->config, sizeof(struct dlci_conf), NULL, NULL);
|
| 1084 |
|
|
}
|
| 1085 |
|
|
|
| 1086 |
|
|
netif_start_queue(dev);
|
| 1087 |
|
|
|
| 1088 |
|
|
return(0);
|
| 1089 |
|
|
}
|
| 1090 |
|
|
|
| 1091 |
|
|
static int sdla_config(struct net_device *dev, struct frad_conf __user *conf, int get)
|
| 1092 |
|
|
{
|
| 1093 |
|
|
struct frad_local *flp;
|
| 1094 |
|
|
struct conf_data data;
|
| 1095 |
|
|
int i;
|
| 1096 |
|
|
short size;
|
| 1097 |
|
|
|
| 1098 |
|
|
if (dev->type == 0xFFFF)
|
| 1099 |
|
|
return(-EUNATCH);
|
| 1100 |
|
|
|
| 1101 |
|
|
flp = dev->priv;
|
| 1102 |
|
|
|
| 1103 |
|
|
if (!get)
|
| 1104 |
|
|
{
|
| 1105 |
|
|
if (netif_running(dev))
|
| 1106 |
|
|
return(-EBUSY);
|
| 1107 |
|
|
|
| 1108 |
|
|
if(copy_from_user(&data.config, conf, sizeof(struct frad_conf)))
|
| 1109 |
|
|
return -EFAULT;
|
| 1110 |
|
|
|
| 1111 |
|
|
if (data.config.station & ~FRAD_STATION_NODE)
|
| 1112 |
|
|
return(-EINVAL);
|
| 1113 |
|
|
|
| 1114 |
|
|
if (data.config.flags & ~FRAD_VALID_FLAGS)
|
| 1115 |
|
|
return(-EINVAL);
|
| 1116 |
|
|
|
| 1117 |
|
|
if ((data.config.kbaud < 0) ||
|
| 1118 |
|
|
((data.config.kbaud > 128) && (flp->type != SDLA_S508)))
|
| 1119 |
|
|
return(-EINVAL);
|
| 1120 |
|
|
|
| 1121 |
|
|
if (data.config.clocking & ~(FRAD_CLOCK_INT | SDLA_S508_PORT_RS232))
|
| 1122 |
|
|
return(-EINVAL);
|
| 1123 |
|
|
|
| 1124 |
|
|
if ((data.config.mtu < 0) || (data.config.mtu > SDLA_MAX_MTU))
|
| 1125 |
|
|
return(-EINVAL);
|
| 1126 |
|
|
|
| 1127 |
|
|
if ((data.config.T391 < 5) || (data.config.T391 > 30))
|
| 1128 |
|
|
return(-EINVAL);
|
| 1129 |
|
|
|
| 1130 |
|
|
if ((data.config.T392 < 5) || (data.config.T392 > 30))
|
| 1131 |
|
|
return(-EINVAL);
|
| 1132 |
|
|
|
| 1133 |
|
|
if ((data.config.N391 < 1) || (data.config.N391 > 255))
|
| 1134 |
|
|
return(-EINVAL);
|
| 1135 |
|
|
|
| 1136 |
|
|
if ((data.config.N392 < 1) || (data.config.N392 > 10))
|
| 1137 |
|
|
return(-EINVAL);
|
| 1138 |
|
|
|
| 1139 |
|
|
if ((data.config.N393 < 1) || (data.config.N393 > 10))
|
| 1140 |
|
|
return(-EINVAL);
|
| 1141 |
|
|
|
| 1142 |
|
|
memcpy(&flp->config, &data.config, sizeof(struct frad_conf));
|
| 1143 |
|
|
flp->config.flags |= SDLA_DIRECT_RECV;
|
| 1144 |
|
|
|
| 1145 |
|
|
if (flp->type == SDLA_S508)
|
| 1146 |
|
|
flp->config.flags |= SDLA_TX70_RX30;
|
| 1147 |
|
|
|
| 1148 |
|
|
if (dev->mtu != flp->config.mtu)
|
| 1149 |
|
|
{
|
| 1150 |
|
|
/* this is required to change the MTU */
|
| 1151 |
|
|
dev->mtu = flp->config.mtu;
|
| 1152 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 1153 |
|
|
if (flp->master[i])
|
| 1154 |
|
|
flp->master[i]->mtu = flp->config.mtu;
|
| 1155 |
|
|
}
|
| 1156 |
|
|
|
| 1157 |
|
|
flp->config.mtu += sizeof(struct frhdr);
|
| 1158 |
|
|
|
| 1159 |
|
|
/* off to the races! */
|
| 1160 |
|
|
if (!flp->configured)
|
| 1161 |
|
|
sdla_start(dev);
|
| 1162 |
|
|
|
| 1163 |
|
|
flp->configured = 1;
|
| 1164 |
|
|
}
|
| 1165 |
|
|
else
|
| 1166 |
|
|
{
|
| 1167 |
|
|
/* no sense reading if the CPU isn't started */
|
| 1168 |
|
|
if (netif_running(dev))
|
| 1169 |
|
|
{
|
| 1170 |
|
|
size = sizeof(data);
|
| 1171 |
|
|
if (sdla_cmd(dev, SDLA_READ_DLCI_CONFIGURATION, 0, 0, NULL, 0, &data, &size) != SDLA_RET_OK)
|
| 1172 |
|
|
return(-EIO);
|
| 1173 |
|
|
}
|
| 1174 |
|
|
else
|
| 1175 |
|
|
if (flp->configured)
|
| 1176 |
|
|
memcpy(&data.config, &flp->config, sizeof(struct frad_conf));
|
| 1177 |
|
|
else
|
| 1178 |
|
|
memset(&data.config, 0, sizeof(struct frad_conf));
|
| 1179 |
|
|
|
| 1180 |
|
|
memcpy(&flp->config, &data.config, sizeof(struct frad_conf));
|
| 1181 |
|
|
data.config.flags &= FRAD_VALID_FLAGS;
|
| 1182 |
|
|
data.config.mtu -= data.config.mtu > sizeof(struct frhdr) ? sizeof(struct frhdr) : data.config.mtu;
|
| 1183 |
|
|
return copy_to_user(conf, &data.config, sizeof(struct frad_conf))?-EFAULT:0;
|
| 1184 |
|
|
}
|
| 1185 |
|
|
|
| 1186 |
|
|
return(0);
|
| 1187 |
|
|
}
|
| 1188 |
|
|
|
| 1189 |
|
|
static int sdla_xfer(struct net_device *dev, struct sdla_mem __user *info, int read)
|
| 1190 |
|
|
{
|
| 1191 |
|
|
struct sdla_mem mem;
|
| 1192 |
|
|
char *temp;
|
| 1193 |
|
|
|
| 1194 |
|
|
if(copy_from_user(&mem, info, sizeof(mem)))
|
| 1195 |
|
|
return -EFAULT;
|
| 1196 |
|
|
|
| 1197 |
|
|
if (read)
|
| 1198 |
|
|
{
|
| 1199 |
|
|
temp = kzalloc(mem.len, GFP_KERNEL);
|
| 1200 |
|
|
if (!temp)
|
| 1201 |
|
|
return(-ENOMEM);
|
| 1202 |
|
|
sdla_read(dev, mem.addr, temp, mem.len);
|
| 1203 |
|
|
if(copy_to_user(mem.data, temp, mem.len))
|
| 1204 |
|
|
{
|
| 1205 |
|
|
kfree(temp);
|
| 1206 |
|
|
return -EFAULT;
|
| 1207 |
|
|
}
|
| 1208 |
|
|
kfree(temp);
|
| 1209 |
|
|
}
|
| 1210 |
|
|
else
|
| 1211 |
|
|
{
|
| 1212 |
|
|
temp = kmalloc(mem.len, GFP_KERNEL);
|
| 1213 |
|
|
if (!temp)
|
| 1214 |
|
|
return(-ENOMEM);
|
| 1215 |
|
|
if(copy_from_user(temp, mem.data, mem.len))
|
| 1216 |
|
|
{
|
| 1217 |
|
|
kfree(temp);
|
| 1218 |
|
|
return -EFAULT;
|
| 1219 |
|
|
}
|
| 1220 |
|
|
sdla_write(dev, mem.addr, temp, mem.len);
|
| 1221 |
|
|
kfree(temp);
|
| 1222 |
|
|
}
|
| 1223 |
|
|
return(0);
|
| 1224 |
|
|
}
|
| 1225 |
|
|
|
| 1226 |
|
|
static int sdla_reconfig(struct net_device *dev)
|
| 1227 |
|
|
{
|
| 1228 |
|
|
struct frad_local *flp;
|
| 1229 |
|
|
struct conf_data data;
|
| 1230 |
|
|
int i, len;
|
| 1231 |
|
|
|
| 1232 |
|
|
flp = dev->priv;
|
| 1233 |
|
|
|
| 1234 |
|
|
len = 0;
|
| 1235 |
|
|
for(i=0;i<CONFIG_DLCI_MAX;i++)
|
| 1236 |
|
|
if (flp->dlci[i])
|
| 1237 |
|
|
data.dlci[len++] = flp->dlci[i];
|
| 1238 |
|
|
len *= 2;
|
| 1239 |
|
|
|
| 1240 |
|
|
memcpy(&data, &flp->config, sizeof(struct frad_conf));
|
| 1241 |
|
|
len += sizeof(struct frad_conf);
|
| 1242 |
|
|
|
| 1243 |
|
|
sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
|
| 1244 |
|
|
sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, 0, 0, &data, len, NULL, NULL);
|
| 1245 |
|
|
sdla_cmd(dev, SDLA_ENABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
|
| 1246 |
|
|
|
| 1247 |
|
|
return(0);
|
| 1248 |
|
|
}
|
| 1249 |
|
|
|
| 1250 |
|
|
static int sdla_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
| 1251 |
|
|
{
|
| 1252 |
|
|
struct frad_local *flp;
|
| 1253 |
|
|
|
| 1254 |
|
|
if(!capable(CAP_NET_ADMIN))
|
| 1255 |
|
|
return -EPERM;
|
| 1256 |
|
|
|
| 1257 |
|
|
flp = dev->priv;
|
| 1258 |
|
|
|
| 1259 |
|
|
if (!flp->initialized)
|
| 1260 |
|
|
return(-EINVAL);
|
| 1261 |
|
|
|
| 1262 |
|
|
switch (cmd)
|
| 1263 |
|
|
{
|
| 1264 |
|
|
case FRAD_GET_CONF:
|
| 1265 |
|
|
case FRAD_SET_CONF:
|
| 1266 |
|
|
return(sdla_config(dev, ifr->ifr_data, cmd == FRAD_GET_CONF));
|
| 1267 |
|
|
|
| 1268 |
|
|
case SDLA_IDENTIFY:
|
| 1269 |
|
|
ifr->ifr_flags = flp->type;
|
| 1270 |
|
|
break;
|
| 1271 |
|
|
|
| 1272 |
|
|
case SDLA_CPUSPEED:
|
| 1273 |
|
|
return(sdla_cpuspeed(dev, ifr));
|
| 1274 |
|
|
|
| 1275 |
|
|
/* ==========================================================
|
| 1276 |
|
|
NOTE: This is rather a useless action right now, as the
|
| 1277 |
|
|
current driver does not support protocols other than
|
| 1278 |
|
|
FR. However, Sangoma has modules for a number of
|
| 1279 |
|
|
other protocols in the works.
|
| 1280 |
|
|
============================================================*/
|
| 1281 |
|
|
case SDLA_PROTOCOL:
|
| 1282 |
|
|
if (flp->configured)
|
| 1283 |
|
|
return(-EALREADY);
|
| 1284 |
|
|
|
| 1285 |
|
|
switch (ifr->ifr_flags)
|
| 1286 |
|
|
{
|
| 1287 |
|
|
case ARPHRD_FRAD:
|
| 1288 |
|
|
dev->type = ifr->ifr_flags;
|
| 1289 |
|
|
break;
|
| 1290 |
|
|
default:
|
| 1291 |
|
|
return(-ENOPROTOOPT);
|
| 1292 |
|
|
}
|
| 1293 |
|
|
break;
|
| 1294 |
|
|
|
| 1295 |
|
|
case SDLA_CLEARMEM:
|
| 1296 |
|
|
sdla_clear(dev);
|
| 1297 |
|
|
break;
|
| 1298 |
|
|
|
| 1299 |
|
|
case SDLA_WRITEMEM:
|
| 1300 |
|
|
case SDLA_READMEM:
|
| 1301 |
|
|
if(!capable(CAP_SYS_RAWIO))
|
| 1302 |
|
|
return -EPERM;
|
| 1303 |
|
|
return(sdla_xfer(dev, ifr->ifr_data, cmd == SDLA_READMEM));
|
| 1304 |
|
|
|
| 1305 |
|
|
case SDLA_START:
|
| 1306 |
|
|
sdla_start(dev);
|
| 1307 |
|
|
break;
|
| 1308 |
|
|
|
| 1309 |
|
|
case SDLA_STOP:
|
| 1310 |
|
|
sdla_stop(dev);
|
| 1311 |
|
|
break;
|
| 1312 |
|
|
|
| 1313 |
|
|
default:
|
| 1314 |
|
|
return(-EOPNOTSUPP);
|
| 1315 |
|
|
}
|
| 1316 |
|
|
return(0);
|
| 1317 |
|
|
}
|
| 1318 |
|
|
|
| 1319 |
|
|
static int sdla_change_mtu(struct net_device *dev, int new_mtu)
|
| 1320 |
|
|
{
|
| 1321 |
|
|
struct frad_local *flp;
|
| 1322 |
|
|
|
| 1323 |
|
|
flp = dev->priv;
|
| 1324 |
|
|
|
| 1325 |
|
|
if (netif_running(dev))
|
| 1326 |
|
|
return(-EBUSY);
|
| 1327 |
|
|
|
| 1328 |
|
|
/* for now, you can't change the MTU! */
|
| 1329 |
|
|
return(-EOPNOTSUPP);
|
| 1330 |
|
|
}
|
| 1331 |
|
|
|
| 1332 |
|
|
static int sdla_set_config(struct net_device *dev, struct ifmap *map)
|
| 1333 |
|
|
{
|
| 1334 |
|
|
struct frad_local *flp;
|
| 1335 |
|
|
int i;
|
| 1336 |
|
|
char byte;
|
| 1337 |
|
|
unsigned base;
|
| 1338 |
|
|
int err = -EINVAL;
|
| 1339 |
|
|
|
| 1340 |
|
|
flp = dev->priv;
|
| 1341 |
|
|
|
| 1342 |
|
|
if (flp->initialized)
|
| 1343 |
|
|
return(-EINVAL);
|
| 1344 |
|
|
|
| 1345 |
|
|
for(i=0; i < ARRAY_SIZE(valid_port); i++)
|
| 1346 |
|
|
if (valid_port[i] == map->base_addr)
|
| 1347 |
|
|
break;
|
| 1348 |
|
|
|
| 1349 |
|
|
if (i == ARRAY_SIZE(valid_port))
|
| 1350 |
|
|
return(-EINVAL);
|
| 1351 |
|
|
|
| 1352 |
|
|
if (!request_region(map->base_addr, SDLA_IO_EXTENTS, dev->name)){
|
| 1353 |
|
|
printk(KERN_WARNING "SDLA: io-port 0x%04lx in use \n", dev->base_addr);
|
| 1354 |
|
|
return(-EINVAL);
|
| 1355 |
|
|
}
|
| 1356 |
|
|
base = map->base_addr;
|
| 1357 |
|
|
|
| 1358 |
|
|
/* test for card types, S502A, S502E, S507, S508 */
|
| 1359 |
|
|
/* these tests shut down the card completely, so clear the state */
|
| 1360 |
|
|
flp->type = SDLA_UNKNOWN;
|
| 1361 |
|
|
flp->state = 0;
|
| 1362 |
|
|
|
| 1363 |
|
|
for(i=1;i<SDLA_IO_EXTENTS;i++)
|
| 1364 |
|
|
if (inb(base + i) != 0xFF)
|
| 1365 |
|
|
break;
|
| 1366 |
|
|
|
| 1367 |
|
|
if (i == SDLA_IO_EXTENTS) {
|
| 1368 |
|
|
outb(SDLA_HALT, base + SDLA_REG_Z80_CONTROL);
|
| 1369 |
|
|
if ((inb(base + SDLA_S502_STS) & 0x0F) == 0x08) {
|
| 1370 |
|
|
outb(SDLA_S502E_INTACK, base + SDLA_REG_CONTROL);
|
| 1371 |
|
|
if ((inb(base + SDLA_S502_STS) & 0x0F) == 0x0C) {
|
| 1372 |
|
|
outb(SDLA_HALT, base + SDLA_REG_CONTROL);
|
| 1373 |
|
|
flp->type = SDLA_S502E;
|
| 1374 |
|
|
goto got_type;
|
| 1375 |
|
|
}
|
| 1376 |
|
|
}
|
| 1377 |
|
|
}
|
| 1378 |
|
|
|
| 1379 |
|
|
for(byte=inb(base),i=0;i<SDLA_IO_EXTENTS;i++)
|
| 1380 |
|
|
if (inb(base + i) != byte)
|
| 1381 |
|
|
break;
|
| 1382 |
|
|
|
| 1383 |
|
|
if (i == SDLA_IO_EXTENTS) {
|
| 1384 |
|
|
outb(SDLA_HALT, base + SDLA_REG_CONTROL);
|
| 1385 |
|
|
if ((inb(base + SDLA_S502_STS) & 0x7E) == 0x30) {
|
| 1386 |
|
|
outb(SDLA_S507_ENABLE, base + SDLA_REG_CONTROL);
|
| 1387 |
|
|
if ((inb(base + SDLA_S502_STS) & 0x7E) == 0x32) {
|
| 1388 |
|
|
outb(SDLA_HALT, base + SDLA_REG_CONTROL);
|
| 1389 |
|
|
flp->type = SDLA_S507;
|
| 1390 |
|
|
goto got_type;
|
| 1391 |
|
|
}
|
| 1392 |
|
|
}
|
| 1393 |
|
|
}
|
| 1394 |
|
|
|
| 1395 |
|
|
outb(SDLA_HALT, base + SDLA_REG_CONTROL);
|
| 1396 |
|
|
if ((inb(base + SDLA_S508_STS) & 0x3F) == 0x00) {
|
| 1397 |
|
|
outb(SDLA_S508_INTEN, base + SDLA_REG_CONTROL);
|
| 1398 |
|
|
if ((inb(base + SDLA_S508_STS) & 0x3F) == 0x10) {
|
| 1399 |
|
|
outb(SDLA_HALT, base + SDLA_REG_CONTROL);
|
| 1400 |
|
|
flp->type = SDLA_S508;
|
| 1401 |
|
|
goto got_type;
|
| 1402 |
|
|
}
|
| 1403 |
|
|
}
|
| 1404 |
|
|
|
| 1405 |
|
|
outb(SDLA_S502A_HALT, base + SDLA_REG_CONTROL);
|
| 1406 |
|
|
if (inb(base + SDLA_S502_STS) == 0x40) {
|
| 1407 |
|
|
outb(SDLA_S502A_START, base + SDLA_REG_CONTROL);
|
| 1408 |
|
|
if (inb(base + SDLA_S502_STS) == 0x40) {
|
| 1409 |
|
|
outb(SDLA_S502A_INTEN, base + SDLA_REG_CONTROL);
|
| 1410 |
|
|
if (inb(base + SDLA_S502_STS) == 0x44) {
|
| 1411 |
|
|
outb(SDLA_S502A_START, base + SDLA_REG_CONTROL);
|
| 1412 |
|
|
flp->type = SDLA_S502A;
|
| 1413 |
|
|
goto got_type;
|
| 1414 |
|
|
}
|
| 1415 |
|
|
}
|
| 1416 |
|
|
}
|
| 1417 |
|
|
|
| 1418 |
|
|
printk(KERN_NOTICE "%s: Unknown card type\n", dev->name);
|
| 1419 |
|
|
err = -ENODEV;
|
| 1420 |
|
|
goto fail;
|
| 1421 |
|
|
|
| 1422 |
|
|
got_type:
|
| 1423 |
|
|
switch(base) {
|
| 1424 |
|
|
case 0x270:
|
| 1425 |
|
|
case 0x280:
|
| 1426 |
|
|
case 0x380:
|
| 1427 |
|
|
case 0x390:
|
| 1428 |
|
|
if (flp->type != SDLA_S508 && flp->type != SDLA_S507)
|
| 1429 |
|
|
goto fail;
|
| 1430 |
|
|
}
|
| 1431 |
|
|
|
| 1432 |
|
|
switch (map->irq) {
|
| 1433 |
|
|
case 2:
|
| 1434 |
|
|
if (flp->type != SDLA_S502E)
|
| 1435 |
|
|
goto fail;
|
| 1436 |
|
|
break;
|
| 1437 |
|
|
|
| 1438 |
|
|
case 10:
|
| 1439 |
|
|
case 11:
|
| 1440 |
|
|
case 12:
|
| 1441 |
|
|
case 15:
|
| 1442 |
|
|
case 4:
|
| 1443 |
|
|
if (flp->type != SDLA_S508 && flp->type != SDLA_S507)
|
| 1444 |
|
|
goto fail;
|
| 1445 |
|
|
break;
|
| 1446 |
|
|
case 3:
|
| 1447 |
|
|
case 5:
|
| 1448 |
|
|
case 7:
|
| 1449 |
|
|
if (flp->type == SDLA_S502A)
|
| 1450 |
|
|
goto fail;
|
| 1451 |
|
|
break;
|
| 1452 |
|
|
|
| 1453 |
|
|
default:
|
| 1454 |
|
|
goto fail;
|
| 1455 |
|
|
}
|
| 1456 |
|
|
|
| 1457 |
|
|
err = -EAGAIN;
|
| 1458 |
|
|
if (request_irq(dev->irq, &sdla_isr, 0, dev->name, dev))
|
| 1459 |
|
|
goto fail;
|
| 1460 |
|
|
|
| 1461 |
|
|
if (flp->type == SDLA_S507) {
|
| 1462 |
|
|
switch(dev->irq) {
|
| 1463 |
|
|
case 3:
|
| 1464 |
|
|
flp->state = SDLA_S507_IRQ3;
|
| 1465 |
|
|
break;
|
| 1466 |
|
|
case 4:
|
| 1467 |
|
|
flp->state = SDLA_S507_IRQ4;
|
| 1468 |
|
|
break;
|
| 1469 |
|
|
case 5:
|
| 1470 |
|
|
flp->state = SDLA_S507_IRQ5;
|
| 1471 |
|
|
break;
|
| 1472 |
|
|
case 7:
|
| 1473 |
|
|
flp->state = SDLA_S507_IRQ7;
|
| 1474 |
|
|
break;
|
| 1475 |
|
|
case 10:
|
| 1476 |
|
|
flp->state = SDLA_S507_IRQ10;
|
| 1477 |
|
|
break;
|
| 1478 |
|
|
case 11:
|
| 1479 |
|
|
flp->state = SDLA_S507_IRQ11;
|
| 1480 |
|
|
break;
|
| 1481 |
|
|
case 12:
|
| 1482 |
|
|
flp->state = SDLA_S507_IRQ12;
|
| 1483 |
|
|
break;
|
| 1484 |
|
|
case 15:
|
| 1485 |
|
|
flp->state = SDLA_S507_IRQ15;
|
| 1486 |
|
|
break;
|
| 1487 |
|
|
}
|
| 1488 |
|
|
}
|
| 1489 |
|
|
|
| 1490 |
|
|
for(i=0; i < ARRAY_SIZE(valid_mem); i++)
|
| 1491 |
|
|
if (valid_mem[i] == map->mem_start)
|
| 1492 |
|
|
break;
|
| 1493 |
|
|
|
| 1494 |
|
|
err = -EINVAL;
|
| 1495 |
|
|
if (i == ARRAY_SIZE(valid_mem))
|
| 1496 |
|
|
goto fail2;
|
| 1497 |
|
|
|
| 1498 |
|
|
if (flp->type == SDLA_S502A && (map->mem_start & 0xF000) >> 12 == 0x0E)
|
| 1499 |
|
|
goto fail2;
|
| 1500 |
|
|
|
| 1501 |
|
|
if (flp->type != SDLA_S507 && map->mem_start >> 16 == 0x0B)
|
| 1502 |
|
|
goto fail2;
|
| 1503 |
|
|
|
| 1504 |
|
|
if (flp->type == SDLA_S507 && map->mem_start >> 16 == 0x0D)
|
| 1505 |
|
|
goto fail2;
|
| 1506 |
|
|
|
| 1507 |
|
|
byte = flp->type != SDLA_S508 ? SDLA_8K_WINDOW : 0;
|
| 1508 |
|
|
byte |= (map->mem_start & 0xF000) >> (12 + (flp->type == SDLA_S508 ? 1 : 0));
|
| 1509 |
|
|
switch(flp->type) {
|
| 1510 |
|
|
case SDLA_S502A:
|
| 1511 |
|
|
case SDLA_S502E:
|
| 1512 |
|
|
switch (map->mem_start >> 16) {
|
| 1513 |
|
|
case 0x0A:
|
| 1514 |
|
|
byte |= SDLA_S502_SEG_A;
|
| 1515 |
|
|
break;
|
| 1516 |
|
|
case 0x0C:
|
| 1517 |
|
|
byte |= SDLA_S502_SEG_C;
|
| 1518 |
|
|
break;
|
| 1519 |
|
|
case 0x0D:
|
| 1520 |
|
|
byte |= SDLA_S502_SEG_D;
|
| 1521 |
|
|
break;
|
| 1522 |
|
|
case 0x0E:
|
| 1523 |
|
|
byte |= SDLA_S502_SEG_E;
|
| 1524 |
|
|
break;
|
| 1525 |
|
|
}
|
| 1526 |
|
|
break;
|
| 1527 |
|
|
case SDLA_S507:
|
| 1528 |
|
|
switch (map->mem_start >> 16) {
|
| 1529 |
|
|
case 0x0A:
|
| 1530 |
|
|
byte |= SDLA_S507_SEG_A;
|
| 1531 |
|
|
break;
|
| 1532 |
|
|
case 0x0B:
|
| 1533 |
|
|
byte |= SDLA_S507_SEG_B;
|
| 1534 |
|
|
break;
|
| 1535 |
|
|
case 0x0C:
|
| 1536 |
|
|
byte |= SDLA_S507_SEG_C;
|
| 1537 |
|
|
break;
|
| 1538 |
|
|
case 0x0E:
|
| 1539 |
|
|
byte |= SDLA_S507_SEG_E;
|
| 1540 |
|
|
break;
|
| 1541 |
|
|
}
|
| 1542 |
|
|
break;
|
| 1543 |
|
|
case SDLA_S508:
|
| 1544 |
|
|
switch (map->mem_start >> 16) {
|
| 1545 |
|
|
case 0x0A:
|
| 1546 |
|
|
byte |= SDLA_S508_SEG_A;
|
| 1547 |
|
|
break;
|
| 1548 |
|
|
case 0x0C:
|
| 1549 |
|
|
byte |= SDLA_S508_SEG_C;
|
| 1550 |
|
|
break;
|
| 1551 |
|
|
case 0x0D:
|
| 1552 |
|
|
byte |= SDLA_S508_SEG_D;
|
| 1553 |
|
|
break;
|
| 1554 |
|
|
case 0x0E:
|
| 1555 |
|
|
byte |= SDLA_S508_SEG_E;
|
| 1556 |
|
|
break;
|
| 1557 |
|
|
}
|
| 1558 |
|
|
break;
|
| 1559 |
|
|
}
|
| 1560 |
|
|
|
| 1561 |
|
|
/* set the memory bits, and enable access */
|
| 1562 |
|
|
outb(byte, base + SDLA_REG_PC_WINDOW);
|
| 1563 |
|
|
|
| 1564 |
|
|
switch(flp->type)
|
| 1565 |
|
|
{
|
| 1566 |
|
|
case SDLA_S502E:
|
| 1567 |
|
|
flp->state = SDLA_S502E_ENABLE;
|
| 1568 |
|
|
break;
|
| 1569 |
|
|
case SDLA_S507:
|
| 1570 |
|
|
flp->state |= SDLA_MEMEN;
|
| 1571 |
|
|
break;
|
| 1572 |
|
|
case SDLA_S508:
|
| 1573 |
|
|
flp->state = SDLA_MEMEN;
|
| 1574 |
|
|
break;
|
| 1575 |
|
|
}
|
| 1576 |
|
|
outb(flp->state, base + SDLA_REG_CONTROL);
|
| 1577 |
|
|
|
| 1578 |
|
|
dev->irq = map->irq;
|
| 1579 |
|
|
dev->base_addr = base;
|
| 1580 |
|
|
dev->mem_start = map->mem_start;
|
| 1581 |
|
|
dev->mem_end = dev->mem_start + 0x2000;
|
| 1582 |
|
|
flp->initialized = 1;
|
| 1583 |
|
|
return 0;
|
| 1584 |
|
|
|
| 1585 |
|
|
fail2:
|
| 1586 |
|
|
free_irq(map->irq, dev);
|
| 1587 |
|
|
fail:
|
| 1588 |
|
|
release_region(base, SDLA_IO_EXTENTS);
|
| 1589 |
|
|
return err;
|
| 1590 |
|
|
}
|
| 1591 |
|
|
|
| 1592 |
|
|
static struct net_device_stats *sdla_stats(struct net_device *dev)
|
| 1593 |
|
|
{
|
| 1594 |
|
|
struct frad_local *flp;
|
| 1595 |
|
|
flp = dev->priv;
|
| 1596 |
|
|
|
| 1597 |
|
|
return(&flp->stats);
|
| 1598 |
|
|
}
|
| 1599 |
|
|
|
| 1600 |
|
|
static void setup_sdla(struct net_device *dev)
|
| 1601 |
|
|
{
|
| 1602 |
|
|
struct frad_local *flp = dev->priv;
|
| 1603 |
|
|
|
| 1604 |
|
|
netdev_boot_setup_check(dev);
|
| 1605 |
|
|
|
| 1606 |
|
|
dev->flags = 0;
|
| 1607 |
|
|
dev->type = 0xFFFF;
|
| 1608 |
|
|
dev->hard_header_len = 0;
|
| 1609 |
|
|
dev->addr_len = 0;
|
| 1610 |
|
|
dev->mtu = SDLA_MAX_MTU;
|
| 1611 |
|
|
|
| 1612 |
|
|
dev->open = sdla_open;
|
| 1613 |
|
|
dev->stop = sdla_close;
|
| 1614 |
|
|
dev->do_ioctl = sdla_ioctl;
|
| 1615 |
|
|
dev->set_config = sdla_set_config;
|
| 1616 |
|
|
dev->get_stats = sdla_stats;
|
| 1617 |
|
|
dev->hard_start_xmit = sdla_transmit;
|
| 1618 |
|
|
dev->change_mtu = sdla_change_mtu;
|
| 1619 |
|
|
|
| 1620 |
|
|
flp->activate = sdla_activate;
|
| 1621 |
|
|
flp->deactivate = sdla_deactivate;
|
| 1622 |
|
|
flp->assoc = sdla_assoc;
|
| 1623 |
|
|
flp->deassoc = sdla_deassoc;
|
| 1624 |
|
|
flp->dlci_conf = sdla_dlci_conf;
|
| 1625 |
|
|
|
| 1626 |
|
|
init_timer(&flp->timer);
|
| 1627 |
|
|
flp->timer.expires = 1;
|
| 1628 |
|
|
flp->timer.data = (unsigned long) dev;
|
| 1629 |
|
|
flp->timer.function = sdla_poll;
|
| 1630 |
|
|
}
|
| 1631 |
|
|
|
| 1632 |
|
|
static struct net_device *sdla;
|
| 1633 |
|
|
|
| 1634 |
|
|
static int __init init_sdla(void)
|
| 1635 |
|
|
{
|
| 1636 |
|
|
int err;
|
| 1637 |
|
|
|
| 1638 |
|
|
printk("%s.\n", version);
|
| 1639 |
|
|
|
| 1640 |
|
|
sdla = alloc_netdev(sizeof(struct frad_local), "sdla0", setup_sdla);
|
| 1641 |
|
|
if (!sdla)
|
| 1642 |
|
|
return -ENOMEM;
|
| 1643 |
|
|
|
| 1644 |
|
|
err = register_netdev(sdla);
|
| 1645 |
|
|
if (err)
|
| 1646 |
|
|
free_netdev(sdla);
|
| 1647 |
|
|
|
| 1648 |
|
|
return err;
|
| 1649 |
|
|
}
|
| 1650 |
|
|
|
| 1651 |
|
|
static void __exit exit_sdla(void)
|
| 1652 |
|
|
{
|
| 1653 |
|
|
struct frad_local *flp = sdla->priv;
|
| 1654 |
|
|
|
| 1655 |
|
|
unregister_netdev(sdla);
|
| 1656 |
|
|
if (flp->initialized) {
|
| 1657 |
|
|
free_irq(sdla->irq, sdla);
|
| 1658 |
|
|
release_region(sdla->base_addr, SDLA_IO_EXTENTS);
|
| 1659 |
|
|
}
|
| 1660 |
|
|
del_timer_sync(&flp->timer);
|
| 1661 |
|
|
free_netdev(sdla);
|
| 1662 |
|
|
}
|
| 1663 |
|
|
|
| 1664 |
|
|
MODULE_LICENSE("GPL");
|
| 1665 |
|
|
|
| 1666 |
|
|
module_init(init_sdla);
|
| 1667 |
|
|
module_exit(exit_sdla);
|
