patch-2.3.21 linux/drivers/net/sdla.c
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- Lines: 1697
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.3.20/linux/drivers/net/sdla.c
- Orig date:
Wed Aug 18 11:36:42 1999
diff -u --recursive --new-file v2.3.20/linux/drivers/net/sdla.c linux/drivers/net/sdla.c
@@ -1,1696 +0,0 @@
-/*
- * SDLA An implementation of a driver for the Sangoma S502/S508 series
- * multi-protocol PC interface card. Initial offering is with
- * the DLCI driver, providing Frame Relay support for linux.
- *
- * Global definitions for the Frame relay interface.
- *
- * Version: @(#)sdla.c 0.30 12 Sep 1996
- *
- * Credits: Sangoma Technologies, for the use of 2 cards for an extended
- * period of time.
- * David Mandelstam <dm@sangoma.com> for getting me started on
- * this project, and incentive to complete it.
- * Gene Kozen <74604.152@compuserve.com> for providing me with
- * important information about the cards.
- *
- * Author: Mike McLagan <mike.mclagan@linux.org>
- *
- * Changes:
- * 0.15 Mike McLagan Improved error handling, packet dropping
- * 0.20 Mike McLagan New transmit/receive flags for config
- * If in FR mode, don't accept packets from
- * non DLCI devices.
- * 0.25 Mike McLagan Fixed problem with rejecting packets
- * from non DLCI devices.
- * 0.30 Mike McLagan Fixed kernel panic when used with modified
- * ifconfig
- *
- * 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.
- */
-
-#include <linux/config.h> /* for CONFIG_DLCI_MAX */
-#include <linux/module.h>
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/interrupt.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/malloc.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-
-#include <asm/system.h>
-#include <asm/bitops.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <asm/uaccess.h>
-
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/if_frad.h>
-
-#include <linux/sdla.h>
-
-static const char* version = "SDLA driver v0.30, 12 Sep 1996, mike.mclagan@linux.org";
-
-static const char* devname = "sdla";
-
-static unsigned int valid_port[] __initdata = { 0x250, 0x270, 0x280, 0x300, 0x350, 0x360, 0x380, 0x390};
-
-static unsigned int valid_mem[] __initdata = {
- 0xA0000, 0xA2000, 0xA4000, 0xA6000, 0xA8000, 0xAA000, 0xAC000, 0xAE000,
- 0xB0000, 0xB2000, 0xB4000, 0xB6000, 0xB8000, 0xBA000, 0xBC000, 0xBE000,
- 0xC0000, 0xC2000, 0xC4000, 0xC6000, 0xC8000, 0xCA000, 0xCC000, 0xCE000,
- 0xD0000, 0xD2000, 0xD4000, 0xD6000, 0xD8000, 0xDA000, 0xDC000, 0xDE000,
- 0xE0000, 0xE2000, 0xE4000, 0xE6000, 0xE8000, 0xEA000, 0xEC000, 0xEE000};
-
-/*********************************************************
- *
- * these are the core routines that access the card itself
- *
- *********************************************************/
-
-#define SDLA_WINDOW(dev,addr) outb((((addr) >> 13) & 0x1F), (dev)->base_addr + SDLA_REG_Z80_WINDOW)
-
-static void sdla_read(struct net_device *dev, int addr, void *buf, short len)
-{
- unsigned long flags;
- char *temp, *base;
- int offset, bytes;
-
- temp = buf;
- while(len)
- {
- offset = addr & SDLA_ADDR_MASK;
- bytes = offset + len > SDLA_WINDOW_SIZE ? SDLA_WINDOW_SIZE - offset : len;
- base = (void *) (dev->mem_start + offset);
-
- save_flags(flags);
- cli();
- SDLA_WINDOW(dev, addr);
- memcpy(temp, base, bytes);
- restore_flags(flags);
-
- addr += bytes;
- temp += bytes;
- len -= bytes;
- }
-}
-
-static void sdla_write(struct net_device *dev, int addr, void *buf, short len)
-{
- unsigned long flags;
- char *temp, *base;
- int offset, bytes;
-
- temp = buf;
- while(len)
- {
- offset = addr & SDLA_ADDR_MASK;
- bytes = offset + len > SDLA_WINDOW_SIZE ? SDLA_WINDOW_SIZE - offset : len;
- base = (void *) (dev->mem_start + offset);
- save_flags(flags);
- cli();
- SDLA_WINDOW(dev, addr);
- memcpy(base, temp, bytes);
- restore_flags(flags);
- addr += bytes;
- temp += bytes;
- len -= bytes;
- }
-}
-
-static void sdla_clear(struct net_device *dev)
-{
- unsigned long flags;
- char *base;
- int len, addr, bytes;
-
- len = 65536;
- addr = 0;
- bytes = SDLA_WINDOW_SIZE;
- base = (void *) dev->mem_start;
-
- save_flags(flags);
- cli();
- while(len)
- {
- SDLA_WINDOW(dev, addr);
- memset(base, 0, bytes);
-
- addr += bytes;
- len -= bytes;
- }
- restore_flags(flags);
-}
-
-static char sdla_byte(struct net_device *dev, int addr)
-{
- unsigned long flags;
- char byte, *temp;
-
- temp = (void *) (dev->mem_start + (addr & SDLA_ADDR_MASK));
-
- save_flags(flags);
- cli();
- SDLA_WINDOW(dev, addr);
- byte = *temp;
- restore_flags(flags);
-
- return(byte);
-}
-
-void sdla_stop(struct net_device *dev)
-{
- struct frad_local *flp;
-
- flp = dev->priv;
- switch(flp->type)
- {
- case SDLA_S502A:
- outb(SDLA_S502A_HALT, dev->base_addr + SDLA_REG_CONTROL);
- flp->state = SDLA_HALT;
- break;
- case SDLA_S502E:
- outb(SDLA_HALT, dev->base_addr + SDLA_REG_Z80_CONTROL);
- outb(SDLA_S502E_ENABLE, dev->base_addr + SDLA_REG_CONTROL);
- flp->state = SDLA_S502E_ENABLE;
- break;
- case SDLA_S507:
- flp->state &= ~SDLA_CPUEN;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- break;
- case SDLA_S508:
- flp->state &= ~SDLA_CPUEN;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- break;
- }
-}
-
-void sdla_start(struct net_device *dev)
-{
- struct frad_local *flp;
-
- flp = dev->priv;
- switch(flp->type)
- {
- case SDLA_S502A:
- outb(SDLA_S502A_NMI, dev->base_addr + SDLA_REG_CONTROL);
- outb(SDLA_S502A_START, dev->base_addr + SDLA_REG_CONTROL);
- flp->state = SDLA_S502A_START;
- break;
- case SDLA_S502E:
- outb(SDLA_S502E_CPUEN, dev->base_addr + SDLA_REG_Z80_CONTROL);
- outb(0x00, dev->base_addr + SDLA_REG_CONTROL);
- flp->state = 0;
- break;
- case SDLA_S507:
- flp->state |= SDLA_CPUEN;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- break;
- case SDLA_S508:
- flp->state |= SDLA_CPUEN;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- break;
- }
-}
-
-/****************************************************
- *
- * this is used for the S502A/E cards to determine
- * the speed of the onboard CPU. Calibration is
- * necessary for the Frame Relay code uploaded
- * later. Incorrect results cause timing problems
- * with link checks & status messages
- *
- ***************************************************/
-
-int sdla_z80_poll(struct net_device *dev, int z80_addr, int jiffs, char resp1, char resp2)
-{
- unsigned long start, done, now;
- char resp, *temp;
-
- start = now = jiffies;
- done = jiffies + jiffs;
-
- temp = (void *)dev->mem_start;
- temp += z80_addr & SDLA_ADDR_MASK;
-
- resp = ~resp1;
- while (time_before(jiffies, done) && (resp != resp1) && (!resp2 || (resp != resp2)))
- {
- if (jiffies != now)
- {
- SDLA_WINDOW(dev, z80_addr);
- now = jiffies;
- resp = *temp;
- }
- }
- return(time_before(jiffies, done) ? jiffies - start : -1);
-}
-
-/* constants for Z80 CPU speed */
-#define Z80_READY '1' /* Z80 is ready to begin */
-#define LOADER_READY '2' /* driver is ready to begin */
-#define Z80_SCC_OK '3' /* SCC is on board */
-#define Z80_SCC_BAD '4' /* SCC was not found */
-
-static int sdla_cpuspeed(struct net_device *dev, struct ifreq *ifr)
-{
- int jiffs;
- char data;
-
- sdla_start(dev);
- if (sdla_z80_poll(dev, 0, 3*HZ, Z80_READY, 0) < 0)
- return(-EIO);
-
- data = LOADER_READY;
- sdla_write(dev, 0, &data, 1);
-
- if ((jiffs = sdla_z80_poll(dev, 0, 8*HZ, Z80_SCC_OK, Z80_SCC_BAD)) < 0)
- return(-EIO);
-
- sdla_stop(dev);
- sdla_read(dev, 0, &data, 1);
-
- if (data == Z80_SCC_BAD)
- {
- printk("%s: SCC bad\n", dev->name);
- return(-EIO);
- }
-
- if (data != Z80_SCC_OK)
- return(-EINVAL);
-
- if (jiffs < 165)
- ifr->ifr_mtu = SDLA_CPU_16M;
- else if (jiffs < 220)
- ifr->ifr_mtu = SDLA_CPU_10M;
- else if (jiffs < 258)
- ifr->ifr_mtu = SDLA_CPU_8M;
- else if (jiffs < 357)
- ifr->ifr_mtu = SDLA_CPU_7M;
- else if (jiffs < 467)
- ifr->ifr_mtu = SDLA_CPU_5M;
- else
- ifr->ifr_mtu = SDLA_CPU_3M;
-
- return(0);
-}
-
-/************************************************
- *
- * Direct interaction with the Frame Relay code
- * starts here.
- *
- ************************************************/
-
-struct _dlci_stat
-{
- short dlci __attribute__((packed));
- char flags __attribute__((packed));
-};
-
-struct _frad_stat
-{
- char flags;
- struct _dlci_stat dlcis[SDLA_MAX_DLCI];
-};
-
-static void sdla_errors(struct net_device *dev, int cmd, int dlci, int ret, int len, void *data)
-{
- struct _dlci_stat *pstatus;
- short *pdlci;
- int i;
- char *state, line[30];
-
- switch (ret)
- {
- case SDLA_RET_MODEM:
- state = data;
- if (*state & SDLA_MODEM_DCD_LOW)
- printk(KERN_INFO "%s: Modem DCD unexpectedly low!\n", dev->name);
- if (*state & SDLA_MODEM_CTS_LOW)
- printk(KERN_INFO "%s: Modem CTS unexpectedly low!\n", dev->name);
- /* I should probably do something about this! */
- break;
-
- case SDLA_RET_CHANNEL_OFF:
- printk(KERN_INFO "%s: Channel became inoperative!\n", dev->name);
- /* same here */
- break;
-
- case SDLA_RET_CHANNEL_ON:
- printk(KERN_INFO "%s: Channel became operative!\n", dev->name);
- /* same here */
- break;
-
- case SDLA_RET_DLCI_STATUS:
- printk(KERN_INFO "%s: Status change reported by Access Node.\n", dev->name);
- len /= sizeof(struct _dlci_stat);
- for(pstatus = data, i=0;i < len;i++,pstatus++)
- {
- if (pstatus->flags & SDLA_DLCI_NEW)
- state = "new";
- else if (pstatus->flags & SDLA_DLCI_DELETED)
- state = "deleted";
- else if (pstatus->flags & SDLA_DLCI_ACTIVE)
- state = "active";
- else
- {
- sprintf(line, "unknown status: %02X", pstatus->flags);
- state = line;
- }
- printk(KERN_INFO "%s: DLCI %i: %s.\n", dev->name, pstatus->dlci, state);
- /* same here */
- }
- break;
-
- case SDLA_RET_DLCI_UNKNOWN:
- printk(KERN_INFO "%s: Received unknown DLCIs:", dev->name);
- len /= sizeof(short);
- for(pdlci = data,i=0;i < len;i++,pdlci++)
- printk(" %i", *pdlci);
- printk("\n");
- break;
-
- case SDLA_RET_TIMEOUT:
- printk(KERN_ERR "%s: Command timed out!\n", dev->name);
- break;
-
- case SDLA_RET_BUF_OVERSIZE:
- printk(KERN_INFO "%s: Bc/CIR overflow, acceptable size is %i\n", dev->name, len);
- break;
-
- case SDLA_RET_BUF_TOO_BIG:
- printk(KERN_INFO "%s: Buffer size over specified max of %i\n", dev->name, len);
- break;
-
- case SDLA_RET_CHANNEL_INACTIVE:
- case SDLA_RET_DLCI_INACTIVE:
- case SDLA_RET_CIR_OVERFLOW:
- case SDLA_RET_NO_BUFS:
- if (cmd == SDLA_INFORMATION_WRITE)
- break;
-
- default:
- printk(KERN_DEBUG "%s: Cmd 0x%2.2X generated return code 0x%2.2X\n", dev->name, cmd, ret);
- /* Further processing could be done here */
- break;
- }
-}
-
-static int sdla_cmd(struct net_device *dev, int cmd, short dlci, short flags,
- void *inbuf, short inlen, void *outbuf, short *outlen)
-{
- static struct _frad_stat status;
- struct frad_local *flp;
- struct sdla_cmd *cmd_buf;
- unsigned long pflags;
- int jiffs, ret, waiting, len;
- long window;
-
- flp = dev->priv;
- window = flp->type == SDLA_S508 ? SDLA_508_CMD_BUF : SDLA_502_CMD_BUF;
- cmd_buf = (struct sdla_cmd *)(dev->mem_start + (window & SDLA_ADDR_MASK));
- ret = 0;
- len = 0;
- jiffs = jiffies + HZ; /* 1 second is plenty */
- save_flags(pflags);
- cli();
- SDLA_WINDOW(dev, window);
- cmd_buf->cmd = cmd;
- cmd_buf->dlci = dlci;
- cmd_buf->flags = flags;
-
- if (inbuf)
- memcpy(cmd_buf->data, inbuf, inlen);
-
- cmd_buf->length = inlen;
-
- cmd_buf->opp_flag = 1;
- restore_flags(pflags);
-
- waiting = 1;
- len = 0;
- while (waiting && time_before_eq(jiffies, jiffs))
- {
- if (waiting++ % 3)
- {
- save_flags(pflags);
- cli();
- SDLA_WINDOW(dev, window);
- waiting = ((volatile int)(cmd_buf->opp_flag));
- restore_flags(pflags);
- }
- }
-
- if (!waiting)
- {
- save_flags(pflags);
- cli();
- SDLA_WINDOW(dev, window);
- ret = cmd_buf->retval;
- len = cmd_buf->length;
- if (outbuf && outlen)
- {
- *outlen = *outlen >= len ? len : *outlen;
-
- if (*outlen)
- memcpy(outbuf, cmd_buf->data, *outlen);
- }
-
- /* This is a local copy that's used for error handling */
- if (ret)
- memcpy(&status, cmd_buf->data, len > sizeof(status) ? sizeof(status) : len);
-
- restore_flags(pflags);
- }
- else
- ret = SDLA_RET_TIMEOUT;
-
- if (ret != SDLA_RET_OK)
- sdla_errors(dev, cmd, dlci, ret, len, &status);
-
- return(ret);
-}
-
-/***********************************************
- *
- * these functions are called by the DLCI driver
- *
- ***********************************************/
-
-static int sdla_reconfig(struct net_device *dev);
-
-int sdla_activate(struct net_device *slave, struct net_device *master)
-{
- struct frad_local *flp;
- int i;
-
- flp = slave->priv;
-
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->master[i] == master)
- break;
-
- if (i == CONFIG_DLCI_MAX)
- return(-ENODEV);
-
- flp->dlci[i] = abs(flp->dlci[i]);
-
- if (slave->start && (flp->config.station == FRAD_STATION_NODE))
- sdla_cmd(slave, SDLA_ACTIVATE_DLCI, 0, 0, &flp->dlci[i], sizeof(short), NULL, NULL);
-
- return(0);
-}
-
-int sdla_deactivate(struct net_device *slave, struct net_device *master)
-{
- struct frad_local *flp;
- int i;
-
- flp = slave->priv;
-
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->master[i] == master)
- break;
-
- if (i == CONFIG_DLCI_MAX)
- return(-ENODEV);
-
- flp->dlci[i] = -abs(flp->dlci[i]);
-
- if (slave->start && (flp->config.station == FRAD_STATION_NODE))
- sdla_cmd(slave, SDLA_DEACTIVATE_DLCI, 0, 0, &flp->dlci[i], sizeof(short), NULL, NULL);
-
- return(0);
-}
-
-int sdla_assoc(struct net_device *slave, struct net_device *master)
-{
- struct frad_local *flp;
- int i;
-
- if (master->type != ARPHRD_DLCI)
- return(-EINVAL);
-
- flp = slave->priv;
-
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- {
- if (!flp->master[i])
- break;
- if (abs(flp->dlci[i]) == *(short *)(master->dev_addr))
- return(-EADDRINUSE);
- }
-
- if (i == CONFIG_DLCI_MAX)
- return(-EMLINK); /* #### Alan: Comments on this ?? */
-
- MOD_INC_USE_COUNT;
-
- flp->master[i] = master;
- flp->dlci[i] = -*(short *)(master->dev_addr);
- master->mtu = slave->mtu;
-
- if (slave->start) {
- if (flp->config.station == FRAD_STATION_CPE)
- sdla_reconfig(slave);
- else
- sdla_cmd(slave, SDLA_ADD_DLCI, 0, 0, master->dev_addr, sizeof(short), NULL, NULL);
- }
-
- return(0);
-}
-
-int sdla_deassoc(struct net_device *slave, struct net_device *master)
-{
- struct frad_local *flp;
- int i;
-
- flp = slave->priv;
-
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->master[i] == master)
- break;
-
- if (i == CONFIG_DLCI_MAX)
- return(-ENODEV);
-
- flp->master[i] = NULL;
- flp->dlci[i] = 0;
-
- MOD_DEC_USE_COUNT;
-
- if (slave->start) {
- if (flp->config.station == FRAD_STATION_CPE)
- sdla_reconfig(slave);
- else
- sdla_cmd(slave, SDLA_DELETE_DLCI, 0, 0, master->dev_addr, sizeof(short), NULL, NULL);
- }
-
- return(0);
-}
-
-int sdla_dlci_conf(struct net_device *slave, struct net_device *master, int get)
-{
- struct frad_local *flp;
- struct dlci_local *dlp;
- int i;
- short len, ret;
-
- flp = slave->priv;
-
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->master[i] == master)
- break;
-
- if (i == CONFIG_DLCI_MAX)
- return(-ENODEV);
-
- dlp = master->priv;
-
- ret = SDLA_RET_OK;
- len = sizeof(struct dlci_conf);
- if (slave->start) {
- if (get)
- ret = sdla_cmd(slave, SDLA_READ_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0,
- NULL, 0, &dlp->config, &len);
- else
- ret = sdla_cmd(slave, SDLA_SET_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0,
- &dlp->config, sizeof(struct dlci_conf) - 4 * sizeof(short), NULL, NULL);
- }
-
- return(ret == SDLA_RET_OK ? 0 : -EIO);
-}
-
-/**************************
- *
- * now for the Linux driver
- *
- **************************/
-
-/* NOTE: the DLCI driver deals with freeing the SKB!! */
-static int sdla_transmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct frad_local *flp;
- int ret, addr, accept;
- short size;
- unsigned long flags;
- struct buf_entry *pbuf;
-
- flp = dev->priv;
- ret = 0;
- accept = 1;
-
- if (dev->tbusy)
- return(1);
-
- if (skb == NULL)
- return(0);
-
- if (test_and_set_bit(0, (void*)&dev->tbusy) != 0)
- printk(KERN_WARNING "%s: transmitter access conflict.\n", dev->name);
- else
- {
- /*
- * stupid GateD insists on setting up the multicast router thru us
- * and we're ill equipped to handle a non Frame Relay packet at this
- * time!
- */
-
- accept = 1;
- switch (dev->type)
- {
- case ARPHRD_FRAD:
- if (skb->dev->type != ARPHRD_DLCI)
- {
- printk(KERN_WARNING "%s: Non DLCI device, type %i, tried to send on FRAD module.\n", dev->name, skb->dev->type);
- accept = 0;
- }
- break;
-
- default:
- printk(KERN_WARNING "%s: unknown firmware type 0x%4.4X\n", dev->name, dev->type);
- accept = 0;
- break;
- }
-
- if (accept)
- {
- /* this is frame specific, but till there's a PPP module, it's the default */
- switch (flp->type)
- {
- case SDLA_S502A:
- case SDLA_S502E:
- ret = sdla_cmd(dev, SDLA_INFORMATION_WRITE, *(short *)(skb->dev->dev_addr), 0, skb->data, skb->len, NULL, NULL);
- break;
-
- case SDLA_S508:
- size = sizeof(addr);
- ret = sdla_cmd(dev, SDLA_INFORMATION_WRITE, *(short *)(skb->dev->dev_addr), 0, NULL, skb->len, &addr, &size);
- if (ret == SDLA_RET_OK)
- {
- save_flags(flags);
- cli();
- SDLA_WINDOW(dev, addr);
- pbuf = (void *)(((int) dev->mem_start) + (addr & SDLA_ADDR_MASK));
-
- sdla_write(dev, pbuf->buf_addr, skb->data, skb->len);
-
- SDLA_WINDOW(dev, addr);
- pbuf->opp_flag = 1;
- restore_flags(flags);
- }
- break;
- }
-
- switch (ret)
- {
- case SDLA_RET_OK:
- flp->stats.tx_packets++;
- ret = DLCI_RET_OK;
- break;
-
- case SDLA_RET_CIR_OVERFLOW:
- case SDLA_RET_BUF_OVERSIZE:
- case SDLA_RET_NO_BUFS:
- flp->stats.tx_dropped++;
- ret = DLCI_RET_DROP;
- break;
-
- default:
- flp->stats.tx_errors++;
- ret = DLCI_RET_ERR;
- break;
- }
- }
- dev->tbusy = 0;
- }
- return(ret);
-}
-
-static void sdla_receive(struct net_device *dev)
-{
- struct net_device *master;
- struct frad_local *flp;
- struct dlci_local *dlp;
- struct sk_buff *skb;
-
- struct sdla_cmd *cmd;
- struct buf_info *pbufi;
- struct buf_entry *pbuf;
-
- unsigned long flags;
- int i, received, success, addr, buf_base, buf_top;
- short dlci, len, len2, split;
-
- flp = dev->priv;
- success = 1;
- received = addr = buf_top = buf_base = 0;
- len = dlci = 0;
- skb = NULL;
- master = NULL;
- cmd = NULL;
- pbufi = NULL;
- pbuf = NULL;
-
- save_flags(flags);
- cli();
-
- switch (flp->type)
- {
- case SDLA_S502A:
- case SDLA_S502E:
- cmd = (void *) (dev->mem_start + (SDLA_502_RCV_BUF & SDLA_ADDR_MASK));
- SDLA_WINDOW(dev, SDLA_502_RCV_BUF);
- success = cmd->opp_flag;
- if (!success)
- break;
-
- dlci = cmd->dlci;
- len = cmd->length;
- break;
-
- case SDLA_S508:
- pbufi = (void *) (dev->mem_start + (SDLA_508_RXBUF_INFO & SDLA_ADDR_MASK));
- SDLA_WINDOW(dev, SDLA_508_RXBUF_INFO);
- pbuf = (void *) (dev->mem_start + ((pbufi->rse_base + flp->buffer * sizeof(struct buf_entry)) & SDLA_ADDR_MASK));
- success = pbuf->opp_flag;
- if (!success)
- break;
-
- buf_top = pbufi->buf_top;
- buf_base = pbufi->buf_base;
- dlci = pbuf->dlci;
- len = pbuf->length;
- addr = pbuf->buf_addr;
- break;
- }
-
- /* common code, find the DLCI and get the SKB */
- if (success)
- {
- for (i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->dlci[i] == dlci)
- break;
-
- if (i == CONFIG_DLCI_MAX)
- {
- printk(KERN_NOTICE "%s: Received packet from invalid DLCI %i, ignoring.", dev->name, dlci);
- flp->stats.rx_errors++;
- success = 0;
- }
- }
-
- if (success)
- {
- master = flp->master[i];
- skb = dev_alloc_skb(len + sizeof(struct frhdr));
- if (skb == NULL)
- {
- printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
- flp->stats.rx_dropped++;
- success = 0;
- }
- else
- skb_reserve(skb, sizeof(struct frhdr));
- }
-
- /* pick up the data */
- switch (flp->type)
- {
- case SDLA_S502A:
- case SDLA_S502E:
- if (success)
- sdla_read(dev, SDLA_502_RCV_BUF + SDLA_502_DATA_OFS, skb_put(skb,len), len);
-
- SDLA_WINDOW(dev, SDLA_502_RCV_BUF);
- cmd->opp_flag = 0;
- break;
-
- case SDLA_S508:
- if (success)
- {
- /* is this buffer split off the end of the internal ring buffer */
- split = addr + len > buf_top + 1 ? len - (buf_top - addr + 1) : 0;
- len2 = len - split;
-
- sdla_read(dev, addr, skb_put(skb, len2), len2);
- if (split)
- sdla_read(dev, buf_base, skb_put(skb, split), split);
- }
-
- /* increment the buffer we're looking at */
- SDLA_WINDOW(dev, SDLA_508_RXBUF_INFO);
- flp->buffer = (flp->buffer + 1) % pbufi->rse_num;
- pbuf->opp_flag = 0;
- break;
- }
-
- if (success)
- {
- flp->stats.rx_packets++;
- dlp = master->priv;
- (*dlp->receive)(skb, master);
- }
-
- restore_flags(flags);
-}
-
-static void sdla_isr(int irq, void *dev_id, struct pt_regs * regs)
-{
- struct net_device *dev;
- struct frad_local *flp;
- char byte;
-
- dev = dev_id;
-
- if (dev == NULL)
- {
- printk(KERN_WARNING "sdla_isr(): irq %d for unknown device.\n", irq);
- return;
- }
-
- flp = dev->priv;
-
- if (!flp->initialized)
- {
- printk(KERN_WARNING "%s: irq %d for uninitialized device.\n", dev->name, irq);
- return;
- }
-
- dev->interrupt = 1;
- byte = sdla_byte(dev, flp->type == SDLA_S508 ? SDLA_508_IRQ_INTERFACE : SDLA_502_IRQ_INTERFACE);
- switch (byte)
- {
- case SDLA_INTR_RX:
- sdla_receive(dev);
- break;
-
- /* the command will get an error return, which is processed above */
- case SDLA_INTR_MODEM:
- case SDLA_INTR_STATUS:
- sdla_cmd(dev, SDLA_READ_DLC_STATUS, 0, 0, NULL, 0, NULL, NULL);
- break;
-
- case SDLA_INTR_TX:
- case SDLA_INTR_COMPLETE:
- case SDLA_INTR_TIMER:
- printk(KERN_WARNING "%s: invalid irq flag 0x%02X.\n", dev->name, byte);
- break;
- }
-
- /* the S502E requires a manual acknowledgement of the interrupt */
- if (flp->type == SDLA_S502E)
- {
- flp->state &= ~SDLA_S502E_INTACK;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- flp->state |= SDLA_S502E_INTACK;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- }
-
- /* this clears the byte, informing the Z80 we're done */
- byte = 0;
- sdla_write(dev, flp->type == SDLA_S508 ? SDLA_508_IRQ_INTERFACE : SDLA_502_IRQ_INTERFACE, &byte, sizeof(byte));
- dev->interrupt = 0;
-}
-
-static void sdla_poll(unsigned long device)
-{
- struct net_device *dev;
- struct frad_local *flp;
-
- dev = (struct net_device *) device;
- flp = dev->priv;
-
- if (sdla_byte(dev, SDLA_502_RCV_BUF))
- sdla_receive(dev);
-
- flp->timer.expires = 1;
- add_timer(&flp->timer);
-}
-
-static int sdla_close(struct net_device *dev)
-{
- struct frad_local *flp;
- struct intr_info intr;
- int len, i;
- short dlcis[CONFIG_DLCI_MAX];
-
- flp = dev->priv;
-
- len = 0;
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->dlci[i])
- dlcis[len++] = abs(flp->dlci[i]);
- len *= 2;
-
- if (flp->config.station == FRAD_STATION_NODE)
- {
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->dlci[i] > 0)
- sdla_cmd(dev, SDLA_DEACTIVATE_DLCI, 0, 0, dlcis, len, NULL, NULL);
- sdla_cmd(dev, SDLA_DELETE_DLCI, 0, 0, &flp->dlci[i], sizeof(flp->dlci[i]), NULL, NULL);
- }
-
- memset(&intr, 0, sizeof(intr));
- /* let's start up the reception */
- switch(flp->type)
- {
- case SDLA_S502A:
- del_timer(&flp->timer);
- break;
-
- case SDLA_S502E:
- sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(char) + sizeof(short), NULL, NULL);
- flp->state &= ~SDLA_S502E_INTACK;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- break;
-
- case SDLA_S507:
- break;
-
- case SDLA_S508:
- sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(struct intr_info), NULL, NULL);
- flp->state &= ~SDLA_S508_INTEN;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- break;
- }
-
- sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
-
- dev->tbusy = 1;
- dev->start = 0;
-
- MOD_DEC_USE_COUNT;
-
- return(0);
-}
-
-struct conf_data {
- struct frad_conf config;
- short dlci[CONFIG_DLCI_MAX];
-};
-
-static int sdla_open(struct net_device *dev)
-{
- struct frad_local *flp;
- struct dlci_local *dlp;
- struct conf_data data;
- struct intr_info intr;
- int len, i;
- char byte;
-
- flp = dev->priv;
-
- if (!flp->initialized)
- return(-EPERM);
-
- if (!flp->configured)
- return(-EPERM);
-
- /* time to send in the configuration */
- len = 0;
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->dlci[i])
- data.dlci[len++] = abs(flp->dlci[i]);
- len *= 2;
-
- memcpy(&data.config, &flp->config, sizeof(struct frad_conf));
- len += sizeof(struct frad_conf);
-
- sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
- sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, 0, 0, &data, len, NULL, NULL);
-
- if (flp->type == SDLA_S508)
- flp->buffer = 0;
-
- sdla_cmd(dev, SDLA_ENABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
-
- /* let's start up the reception */
- memset(&intr, 0, sizeof(intr));
- switch(flp->type)
- {
- case SDLA_S502A:
- flp->timer.expires = 1;
- add_timer(&flp->timer);
- break;
-
- case SDLA_S502E:
- flp->state |= SDLA_S502E_ENABLE;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- flp->state |= SDLA_S502E_INTACK;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- byte = 0;
- sdla_write(dev, SDLA_502_IRQ_INTERFACE, &byte, sizeof(byte));
- intr.flags = SDLA_INTR_RX | SDLA_INTR_STATUS | SDLA_INTR_MODEM;
- sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(char) + sizeof(short), NULL, NULL);
- break;
-
- case SDLA_S507:
- break;
-
- case SDLA_S508:
- flp->state |= SDLA_S508_INTEN;
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
- byte = 0;
- sdla_write(dev, SDLA_508_IRQ_INTERFACE, &byte, sizeof(byte));
- intr.flags = SDLA_INTR_RX | SDLA_INTR_STATUS | SDLA_INTR_MODEM;
- intr.irq = dev->irq;
- sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(struct intr_info), NULL, NULL);
- break;
- }
-
- if (flp->config.station == FRAD_STATION_CPE)
- {
- byte = SDLA_ICS_STATUS_ENQ;
- sdla_cmd(dev, SDLA_ISSUE_IN_CHANNEL_SIGNAL, 0, 0, &byte, sizeof(byte), NULL, NULL);
- }
- else
- {
- sdla_cmd(dev, SDLA_ADD_DLCI, 0, 0, data.dlci, len - sizeof(struct frad_conf), NULL, NULL);
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->dlci[i] > 0)
- sdla_cmd(dev, SDLA_ACTIVATE_DLCI, 0, 0, &flp->dlci[i], 2*sizeof(flp->dlci[i]), NULL, NULL);
- }
-
- /* configure any specific DLCI settings */
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->dlci[i])
- {
- dlp = flp->master[i]->priv;
- if (dlp->configured)
- sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0, &dlp->config, sizeof(struct dlci_conf), NULL, NULL);
- }
-
- dev->tbusy = 0;
- dev->interrupt = 0;
- dev->start = 1;
-
- MOD_INC_USE_COUNT;
-
- return(0);
-}
-
-static int sdla_config(struct net_device *dev, struct frad_conf *conf, int get)
-{
- struct frad_local *flp;
- struct conf_data data;
- int i;
- short size;
-
- if (dev->type == 0xFFFF)
- return(-EUNATCH);
-
- flp = dev->priv;
-
- if (!get)
- {
- if (dev->start)
- return(-EBUSY);
-
- if(copy_from_user(&data.config, conf, sizeof(struct frad_conf)))
- return -EFAULT;
-
- if (data.config.station & ~FRAD_STATION_NODE)
- return(-EINVAL);
-
- if (data.config.flags & ~FRAD_VALID_FLAGS)
- return(-EINVAL);
-
- if ((data.config.kbaud < 0) ||
- ((data.config.kbaud > 128) && (flp->type != SDLA_S508)))
- return(-EINVAL);
-
- if (data.config.clocking & ~(FRAD_CLOCK_INT | SDLA_S508_PORT_RS232))
- return(-EINVAL);
-
- if ((data.config.mtu < 0) || (data.config.mtu > SDLA_MAX_MTU))
- return(-EINVAL);
-
- if ((data.config.T391 < 5) || (data.config.T391 > 30))
- return(-EINVAL);
-
- if ((data.config.T392 < 5) || (data.config.T392 > 30))
- return(-EINVAL);
-
- if ((data.config.N391 < 1) || (data.config.N391 > 255))
- return(-EINVAL);
-
- if ((data.config.N392 < 1) || (data.config.N392 > 10))
- return(-EINVAL);
-
- if ((data.config.N393 < 1) || (data.config.N393 > 10))
- return(-EINVAL);
-
- memcpy(&flp->config, &data.config, sizeof(struct frad_conf));
- flp->config.flags |= SDLA_DIRECT_RECV;
-
- if (flp->type == SDLA_S508)
- flp->config.flags |= SDLA_TX70_RX30;
-
- if (dev->mtu != flp->config.mtu)
- {
- /* this is required to change the MTU */
- dev->mtu = flp->config.mtu;
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->master[i])
- flp->master[i]->mtu = flp->config.mtu;
- }
-
- flp->config.mtu += sizeof(struct frhdr);
-
- /* off to the races! */
- if (!flp->configured)
- sdla_start(dev);
-
- flp->configured = 1;
- }
- else
- {
- /* no sense reading if the CPU isn't started */
- if (dev->start)
- {
- size = sizeof(data);
- if (sdla_cmd(dev, SDLA_READ_DLCI_CONFIGURATION, 0, 0, NULL, 0, &data, &size) != SDLA_RET_OK)
- return(-EIO);
- }
- else
- if (flp->configured)
- memcpy(&data.config, &flp->config, sizeof(struct frad_conf));
- else
- memset(&data.config, 0, sizeof(struct frad_conf));
-
- memcpy(&flp->config, &data.config, sizeof(struct frad_conf));
- data.config.flags &= FRAD_VALID_FLAGS;
- data.config.mtu -= data.config.mtu > sizeof(struct frhdr) ? sizeof(struct frhdr) : data.config.mtu;
- return copy_to_user(conf, &data.config, sizeof(struct frad_conf))?-EFAULT:0;
- }
-
- return(0);
-}
-
-static int sdla_xfer(struct net_device *dev, struct sdla_mem *info, int read)
-{
- struct sdla_mem mem;
- char *temp;
-
- if(copy_from_user(&mem, info, sizeof(mem)))
- return -EFAULT;
-
- if (read)
- {
- temp = kmalloc(mem.len, GFP_KERNEL);
- if (!temp)
- return(-ENOMEM);
- sdla_read(dev, mem.addr, temp, mem.len);
- if(copy_to_user(mem.data, temp, mem.len))
- return -EFAULT;
- kfree(temp);
- }
- else
- {
- temp = kmalloc(mem.len, GFP_KERNEL);
- if (!temp)
- return(-ENOMEM);
- if(copy_from_user(temp, mem.data, mem.len))
- return -EFAULT;
- sdla_write(dev, mem.addr, temp, mem.len);
- kfree(temp);
- }
- return(0);
-}
-
-static int sdla_reconfig(struct net_device *dev)
-{
- struct frad_local *flp;
- struct conf_data data;
- int i, len;
-
- flp = dev->priv;
-
- len = 0;
- for(i=0;i<CONFIG_DLCI_MAX;i++)
- if (flp->dlci[i])
- data.dlci[len++] = flp->dlci[i];
- len *= 2;
-
- memcpy(&data, &flp->config, sizeof(struct frad_conf));
- len += sizeof(struct frad_conf);
-
- sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
- sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, 0, 0, &data, len, NULL, NULL);
- sdla_cmd(dev, SDLA_ENABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL);
-
- return(0);
-}
-
-static int sdla_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- struct frad_local *flp;
-
- if(!suser())
- return -EPERM;
-
- flp = dev->priv;
-
- if (!flp->initialized)
- return(-EINVAL);
-
- switch (cmd)
- {
- case FRAD_GET_CONF:
- case FRAD_SET_CONF:
- return(sdla_config(dev, (struct frad_conf *)ifr->ifr_data, cmd == FRAD_GET_CONF));
-
- case SDLA_IDENTIFY:
- ifr->ifr_flags = flp->type;
- break;
-
- case SDLA_CPUSPEED:
- return(sdla_cpuspeed(dev, ifr));
-
-/* ==========================================================
-NOTE: This is rather a useless action right now, as the
- current driver does not support protocols other than
- FR. However, Sangoma has modules for a number of
- other protocols in the works.
-============================================================*/
- case SDLA_PROTOCOL:
- if (flp->configured)
- return(-EALREADY);
-
- switch (ifr->ifr_flags)
- {
- case ARPHRD_FRAD:
- dev->type = ifr->ifr_flags;
- break;
- default:
- return(-ENOPROTOOPT);
- }
- break;
-
- case SDLA_CLEARMEM:
- sdla_clear(dev);
- break;
-
- case SDLA_WRITEMEM:
- case SDLA_READMEM:
- return(sdla_xfer(dev, (struct sdla_mem *)ifr->ifr_data, cmd == SDLA_READMEM));
-
- case SDLA_START:
- sdla_start(dev);
- break;
-
- case SDLA_STOP:
- sdla_stop(dev);
- break;
-
- default:
- return(-EOPNOTSUPP);
- }
- return(0);
-}
-
-int sdla_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct frad_local *flp;
-
- flp = dev->priv;
-
- if (dev->start)
- return(-EBUSY);
-
- /* for now, you can't change the MTU! */
- return(-EOPNOTSUPP);
-}
-
-int sdla_set_config(struct net_device *dev, struct ifmap *map)
-{
- struct frad_local *flp;
- int i;
- char byte;
-
- flp = dev->priv;
-
- if (flp->initialized)
- return(-EINVAL);
-
- for(i=0;i < sizeof(valid_port) / sizeof (int) ; i++)
- if (valid_port[i] == map->base_addr)
- break;
-
- if (i == sizeof(valid_port) / sizeof(int))
- return(-EINVAL);
-
- dev->base_addr = map->base_addr;
- request_region(dev->base_addr, SDLA_IO_EXTENTS, dev->name);
-
- /* test for card types, S502A, S502E, S507, S508 */
- /* these tests shut down the card completely, so clear the state */
- flp->type = SDLA_UNKNOWN;
- flp->state = 0;
-
- for(i=1;i<SDLA_IO_EXTENTS;i++)
- if (inb(dev->base_addr + i) != 0xFF)
- break;
-
- if (i == SDLA_IO_EXTENTS)
- {
- outb(SDLA_HALT, dev->base_addr + SDLA_REG_Z80_CONTROL);
- if ((inb(dev->base_addr + SDLA_S502_STS) & 0x0F) == 0x08)
- {
- outb(SDLA_S502E_INTACK, dev->base_addr + SDLA_REG_CONTROL);
- if ((inb(dev->base_addr + SDLA_S502_STS) & 0x0F) == 0x0C)
- {
- outb(SDLA_HALT, dev->base_addr + SDLA_REG_CONTROL);
- flp->type = SDLA_S502E;
- }
- }
- }
-
- if (flp->type == SDLA_UNKNOWN)
- {
- for(byte=inb(dev->base_addr),i=0;i<SDLA_IO_EXTENTS;i++)
- if (inb(dev->base_addr + i) != byte)
- break;
-
- if (i == SDLA_IO_EXTENTS)
- {
- outb(SDLA_HALT, dev->base_addr + SDLA_REG_CONTROL);
- if ((inb(dev->base_addr + SDLA_S502_STS) & 0x7E) == 0x30)
- {
- outb(SDLA_S507_ENABLE, dev->base_addr + SDLA_REG_CONTROL);
- if ((inb(dev->base_addr + SDLA_S502_STS) & 0x7E) == 0x32)
- {
- outb(SDLA_HALT, dev->base_addr + SDLA_REG_CONTROL);
- flp->type = SDLA_S507;
- }
- }
- }
- }
-
- if (flp->type == SDLA_UNKNOWN)
- {
- outb(SDLA_HALT, dev->base_addr + SDLA_REG_CONTROL);
- if ((inb(dev->base_addr + SDLA_S508_STS) & 0x3F) == 0x00)
- {
- outb(SDLA_S508_INTEN, dev->base_addr + SDLA_REG_CONTROL);
- if ((inb(dev->base_addr + SDLA_S508_STS) & 0x3F) == 0x10)
- {
- outb(SDLA_HALT, dev->base_addr + SDLA_REG_CONTROL);
- flp->type = SDLA_S508;
- }
- }
- }
-
- if (flp->type == SDLA_UNKNOWN)
- {
- outb(SDLA_S502A_HALT, dev->base_addr + SDLA_REG_CONTROL);
- if (inb(dev->base_addr + SDLA_S502_STS) == 0x40)
- {
- outb(SDLA_S502A_START, dev->base_addr + SDLA_REG_CONTROL);
- if (inb(dev->base_addr + SDLA_S502_STS) == 0x40)
- {
- outb(SDLA_S502A_INTEN, dev->base_addr + SDLA_REG_CONTROL);
- if (inb(dev->base_addr + SDLA_S502_STS) == 0x44)
- {
- outb(SDLA_S502A_START, dev->base_addr + SDLA_REG_CONTROL);
- flp->type = SDLA_S502A;
- }
- }
- }
- }
-
- if (flp->type == SDLA_UNKNOWN)
- {
- printk(KERN_NOTICE "%s: Unknown card type\n", dev->name);
- return(-ENODEV);
- }
-
- switch(dev->base_addr)
- {
- case 0x270:
- case 0x280:
- case 0x380:
- case 0x390:
- if ((flp->type != SDLA_S508) && (flp->type != SDLA_S507))
- return(-EINVAL);
- }
-
- switch (map->irq)
- {
- case 2:
- if (flp->type != SDLA_S502E)
- return(-EINVAL);
- break;
-
- case 10:
- case 11:
- case 12:
- case 15:
- case 4:
- if ((flp->type != SDLA_S508) && (flp->type != SDLA_S507))
- return(-EINVAL);
-
- case 3:
- case 5:
- case 7:
- if (flp->type == SDLA_S502A)
- return(-EINVAL);
- break;
-
- default:
- return(-EINVAL);
- }
- dev->irq = map->irq;
-
- if (request_irq(dev->irq, &sdla_isr, 0, dev->name, dev))
- return(-EAGAIN);
-
- if (flp->type == SDLA_S507)
- {
- switch(dev->irq)
- {
- case 3:
- flp->state = SDLA_S507_IRQ3;
- break;
- case 4:
- flp->state = SDLA_S507_IRQ4;
- break;
- case 5:
- flp->state = SDLA_S507_IRQ5;
- break;
- case 7:
- flp->state = SDLA_S507_IRQ7;
- break;
- case 10:
- flp->state = SDLA_S507_IRQ10;
- break;
- case 11:
- flp->state = SDLA_S507_IRQ11;
- break;
- case 12:
- flp->state = SDLA_S507_IRQ12;
- break;
- case 15:
- flp->state = SDLA_S507_IRQ15;
- break;
- }
- }
-
- for(i=0;i < sizeof(valid_mem) / sizeof (int) ; i++)
- if (valid_mem[i] == map->mem_start)
- break;
-
- if (i == sizeof(valid_mem) / sizeof(int))
- /*
- * FIXME:
- * BUG BUG BUG: MUST RELEASE THE IRQ WE ALLOCATED IN
- * ALL THESE CASES
- *
- */
- return(-EINVAL);
-
- if ((flp->type == SDLA_S502A) && (((map->mem_start & 0xF000) >> 12) == 0x0E))
- return(-EINVAL);
-
- if ((flp->type != SDLA_S507) && ((map->mem_start >> 16) == 0x0B))
- return(-EINVAL);
-
- if ((flp->type == SDLA_S507) && ((map->mem_start >> 16) == 0x0D))
- return(-EINVAL);
-
- dev->mem_start = map->mem_start;
- dev->mem_end = dev->mem_start + 0x2000;
-
- byte = flp->type != SDLA_S508 ? SDLA_8K_WINDOW : 0;
- byte |= (map->mem_start & 0xF000) >> (12 + (flp->type == SDLA_S508 ? 1 : 0));
- switch(flp->type)
- {
- case SDLA_S502A:
- case SDLA_S502E:
- switch (map->mem_start >> 16)
- {
- case 0x0A:
- byte |= SDLA_S502_SEG_A;
- break;
- case 0x0C:
- byte |= SDLA_S502_SEG_C;
- break;
- case 0x0D:
- byte |= SDLA_S502_SEG_D;
- break;
- case 0x0E:
- byte |= SDLA_S502_SEG_E;
- break;
- }
- break;
- case SDLA_S507:
- switch (map->mem_start >> 16)
- {
- case 0x0A:
- byte |= SDLA_S507_SEG_A;
- break;
- case 0x0B:
- byte |= SDLA_S507_SEG_B;
- break;
- case 0x0C:
- byte |= SDLA_S507_SEG_C;
- break;
- case 0x0E:
- byte |= SDLA_S507_SEG_E;
- break;
- }
- break;
- case SDLA_S508:
- switch (map->mem_start >> 16)
- {
- case 0x0A:
- byte |= SDLA_S508_SEG_A;
- break;
- case 0x0C:
- byte |= SDLA_S508_SEG_C;
- break;
- case 0x0D:
- byte |= SDLA_S508_SEG_D;
- break;
- case 0x0E:
- byte |= SDLA_S508_SEG_E;
- break;
- }
- break;
- }
-
- /* set the memory bits, and enable access */
- outb(byte, dev->base_addr + SDLA_REG_PC_WINDOW);
-
- switch(flp->type)
- {
- case SDLA_S502E:
- flp->state = SDLA_S502E_ENABLE;
- break;
- case SDLA_S507:
- flp->state |= SDLA_MEMEN;
- break;
- case SDLA_S508:
- flp->state = SDLA_MEMEN;
- break;
- }
- outb(flp->state, dev->base_addr + SDLA_REG_CONTROL);
-
- flp->initialized = 1;
- return(0);
-}
-
-static struct net_device_stats *sdla_stats(struct net_device *dev)
-{
- struct frad_local *flp;
- flp = dev->priv;
-
- return(&flp->stats);
-}
-
-int __init sdla_init(struct net_device *dev)
-{
- struct frad_local *flp;
-
- /* allocate the private data structure */
- flp = kmalloc(sizeof(struct frad_local), GFP_KERNEL);
- if (!flp)
- return(-ENOMEM);
-
- memset(flp, 0, sizeof(struct frad_local));
- dev->priv = flp;
-
- dev->flags = 0;
- dev->open = sdla_open;
- dev->stop = sdla_close;
- dev->do_ioctl = sdla_ioctl;
- dev->set_config = sdla_set_config;
- dev->get_stats = sdla_stats;
- dev->hard_start_xmit = sdla_transmit;
- dev->change_mtu = sdla_change_mtu;
-
- dev->type = 0xFFFF;
- dev->hard_header_len = 0;
- dev->addr_len = 0;
- dev->mtu = SDLA_MAX_MTU;
-
- dev_init_buffers(dev);
-
- flp->activate = sdla_activate;
- flp->deactivate = sdla_deactivate;
- flp->assoc = sdla_assoc;
- flp->deassoc = sdla_deassoc;
- flp->dlci_conf = sdla_dlci_conf;
-
- init_timer(&flp->timer);
- flp->timer.expires = 1;
- flp->timer.data = (unsigned long) dev;
- flp->timer.function = sdla_poll;
-
- return(0);
-}
-
-void __init sdla_setup(void)
-{
- printk("%s.\n", version);
- register_frad(devname);
-}
-
-#ifdef MODULE
-static struct net_device sdla0 = {"sdla0", 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, sdla_init};
-
-int init_module(void)
-{
- int result;
-
- sdla_setup();
- if ((result = register_netdev(&sdla0)) != 0)
- return result;
- return 0;
-}
-
-void cleanup_module(void)
-{
- unregister_netdev(&sdla0);
- if (sdla0.priv)
- kfree(sdla0.priv);
- if (sdla0.irq)
- free_irq(sdla0.irq, &sdla0);
-}
-#endif /* MODULE */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)