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tegrakernel/kernel/kernel-4.9/drivers/net/ethernet/xircom/xirc2ps_cs.c

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initial commit tegra kernel 32.6.1
2022-02-16 09:13:02 -06:00
/* [xirc2ps_cs.c wk 03.11.99] (1.40 1999/11/18 00:06:03)
* Xircom CreditCard Ethernet Adapter IIps driver
* Xircom Realport 10/100 (RE-100) driver
*
* This driver supports various Xircom CreditCard Ethernet adapters
* including the CE2, CE IIps, RE-10, CEM28, CEM33, CE33, CEM56,
* CE3-100, CE3B, RE-100, REM10BT, and REM56G-100.
*
* 2000-09-24 <psheer@icon.co.za> The Xircom CE3B-100 may not
* autodetect the media properly. In this case use the
* if_port=1 (for 10BaseT) or if_port=4 (for 100BaseT) options
* to force the media type.
*
* Written originally by Werner Koch based on David Hinds' skeleton of the
* PCMCIA driver.
*
* Copyright (c) 1997,1998 Werner Koch (dd9jn)
*
* This driver 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.
*
* It is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
*
* ALTERNATIVELY, this driver may be distributed under the terms of
* the following license, in which case the provisions of this license
* are required INSTEAD OF the GNU General Public License. (This clause
* is necessary due to a potential bad interaction between the GPL and
* the restrictions contained in a BSD-style copyright.)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/in.h>
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <linux/ioport.h>
#include <linux/bitops.h>
#include <linux/mii.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ciscode.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#ifndef MANFID_COMPAQ
#define MANFID_COMPAQ 0x0138
#define MANFID_COMPAQ2 0x0183 /* is this correct? */
#endif
#include <pcmcia/ds.h>
/* Time in jiffies before concluding Tx hung */
#define TX_TIMEOUT ((400*HZ)/1000)
/****************
* Some constants used to access the hardware
*/
/* Register offsets and value constans */
#define XIRCREG_CR 0 /* Command register (wr) */
enum xirc_cr {
TransmitPacket = 0x01,
SoftReset = 0x02,
EnableIntr = 0x04,
ForceIntr = 0x08,
ClearTxFIFO = 0x10,
ClearRxOvrun = 0x20,
RestartTx = 0x40
};
#define XIRCREG_ESR 0 /* Ethernet status register (rd) */
enum xirc_esr {
FullPktRcvd = 0x01, /* full packet in receive buffer */
PktRejected = 0x04, /* a packet has been rejected */
TxPktPend = 0x08, /* TX Packet Pending */
IncorPolarity = 0x10,
MediaSelect = 0x20 /* set if TP, clear if AUI */
};
#define XIRCREG_PR 1 /* Page Register select */
#define XIRCREG_EDP 4 /* Ethernet Data Port Register */
#define XIRCREG_ISR 6 /* Ethernet Interrupt Status Register */
enum xirc_isr {
TxBufOvr = 0x01, /* TX Buffer Overflow */
PktTxed = 0x02, /* Packet Transmitted */
MACIntr = 0x04, /* MAC Interrupt occurred */
TxResGrant = 0x08, /* Tx Reservation Granted */
RxFullPkt = 0x20, /* Rx Full Packet */
RxPktRej = 0x40, /* Rx Packet Rejected */
ForcedIntr= 0x80 /* Forced Interrupt */
};
#define XIRCREG1_IMR0 12 /* Ethernet Interrupt Mask Register (on page 1)*/
#define XIRCREG1_IMR1 13
#define XIRCREG0_TSO 8 /* Transmit Space Open Register (on page 0)*/
#define XIRCREG0_TRS 10 /* Transmit reservation Size Register (page 0)*/
#define XIRCREG0_DO 12 /* Data Offset Register (page 0) (wr) */
#define XIRCREG0_RSR 12 /* Receive Status Register (page 0) (rd) */
enum xirc_rsr {
PhyPkt = 0x01, /* set:physical packet, clear: multicast packet */
BrdcstPkt = 0x02, /* set if it is a broadcast packet */
PktTooLong = 0x04, /* set if packet length > 1518 */
AlignErr = 0x10, /* incorrect CRC and last octet not complete */
CRCErr = 0x20, /* incorrect CRC and last octet is complete */
PktRxOk = 0x80 /* received ok */
};
#define XIRCREG0_PTR 13 /* packets transmitted register (rd) */
#define XIRCREG0_RBC 14 /* receive byte count regsister (rd) */
#define XIRCREG1_ECR 14 /* ethernet configurationn register */
enum xirc_ecr {
FullDuplex = 0x04, /* enable full duplex mode */
LongTPMode = 0x08, /* adjust for longer lengths of TP cable */
DisablePolCor = 0x10,/* disable auto polarity correction */
DisableLinkPulse = 0x20, /* disable link pulse generation */
DisableAutoTx = 0x40, /* disable auto-transmit */
};
#define XIRCREG2_RBS 8 /* receive buffer start register */
#define XIRCREG2_LED 10 /* LED Configuration register */
/* values for the leds: Bits 2-0 for led 1
* 0 disabled Bits 5-3 for led 2
* 1 collision
* 2 noncollision
* 3 link_detected
* 4 incor_polarity
* 5 jabber
* 6 auto_assertion
* 7 rx_tx_activity
*/
#define XIRCREG2_MSR 12 /* Mohawk specific register */
#define XIRCREG4_GPR0 8 /* General Purpose Register 0 */
#define XIRCREG4_GPR1 9 /* General Purpose Register 1 */
#define XIRCREG2_GPR2 13 /* General Purpose Register 2 (page2!)*/
#define XIRCREG4_BOV 10 /* Bonding Version Register */
#define XIRCREG4_LMA 12 /* Local Memory Address Register */
#define XIRCREG4_LMD 14 /* Local Memory Data Port */
/* MAC register can only by accessed with 8 bit operations */
#define XIRCREG40_CMD0 8 /* Command Register (wr) */
enum xirc_cmd { /* Commands */
Transmit = 0x01,
EnableRecv = 0x04,
DisableRecv = 0x08,
Abort = 0x10,
Online = 0x20,
IntrAck = 0x40,
Offline = 0x80
};
#define XIRCREG5_RHSA0 10 /* Rx Host Start Address */
#define XIRCREG40_RXST0 9 /* Receive Status Register */
#define XIRCREG40_TXST0 11 /* Transmit Status Register 0 */
#define XIRCREG40_TXST1 12 /* Transmit Status Register 10 */
#define XIRCREG40_RMASK0 13 /* Receive Mask Register */
#define XIRCREG40_TMASK0 14 /* Transmit Mask Register 0 */
#define XIRCREG40_TMASK1 15 /* Transmit Mask Register 0 */
#define XIRCREG42_SWC0 8 /* Software Configuration 0 */
#define XIRCREG42_SWC1 9 /* Software Configuration 1 */
#define XIRCREG42_BOC 10 /* Back-Off Configuration */
#define XIRCREG44_TDR0 8 /* Time Domain Reflectometry 0 */
#define XIRCREG44_TDR1 9 /* Time Domain Reflectometry 1 */
#define XIRCREG44_RXBC_LO 10 /* Rx Byte Count 0 (rd) */
#define XIRCREG44_RXBC_HI 11 /* Rx Byte Count 1 (rd) */
#define XIRCREG45_REV 15 /* Revision Register (rd) */
#define XIRCREG50_IA 8 /* Individual Address (8-13) */
static const char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" };
/* card types */
#define XIR_UNKNOWN 0 /* unknown: not supported */
#define XIR_CE 1 /* (prodid 1) different hardware: not supported */
#define XIR_CE2 2 /* (prodid 2) */
#define XIR_CE3 3 /* (prodid 3) */
#define XIR_CEM 4 /* (prodid 1) different hardware: not supported */
#define XIR_CEM2 5 /* (prodid 2) */
#define XIR_CEM3 6 /* (prodid 3) */
#define XIR_CEM33 7 /* (prodid 4) */
#define XIR_CEM56M 8 /* (prodid 5) */
#define XIR_CEM56 9 /* (prodid 6) */
#define XIR_CM28 10 /* (prodid 3) modem only: not supported here */
#define XIR_CM33 11 /* (prodid 4) modem only: not supported here */
#define XIR_CM56 12 /* (prodid 5) modem only: not supported here */
#define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */
#define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */
/*====================================================================*/
/* Module parameters */
MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver");
MODULE_LICENSE("Dual MPL/GPL");
#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
INT_MODULE_PARM(if_port, 0);
INT_MODULE_PARM(full_duplex, 0);
INT_MODULE_PARM(do_sound, 1);
INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */
/*====================================================================*/
/* We do not process more than these number of bytes during one
* interrupt. (Of course we receive complete packets, so this is not
* an exact value).
* Something between 2000..22000; first value gives best interrupt latency,
* the second enables the usage of the complete on-chip buffer. We use the
* high value as the initial value.
*/
static unsigned maxrx_bytes = 22000;
/* MII management prototypes */
static void mii_idle(unsigned int ioaddr);
static void mii_putbit(unsigned int ioaddr, unsigned data);
static int mii_getbit(unsigned int ioaddr);
static void mii_wbits(unsigned int ioaddr, unsigned data, int len);
static unsigned mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg);
static void mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg,
unsigned data, int len);
static int has_ce2_string(struct pcmcia_device * link);
static int xirc2ps_config(struct pcmcia_device * link);
static void xirc2ps_release(struct pcmcia_device * link);
static void xirc2ps_detach(struct pcmcia_device *p_dev);
static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id);
struct local_info {
struct net_device *dev;
struct pcmcia_device *p_dev;
int card_type;
int probe_port;
int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */
int mohawk; /* a CE3 type card */
int dingo; /* a CEM56 type card */
int new_mii; /* has full 10baseT/100baseT MII */
int modem; /* is a multi function card (i.e with a modem) */
void __iomem *dingo_ccr; /* only used for CEM56 cards */
unsigned last_ptr_value; /* last packets transmitted value */
const char *manf_str;
struct work_struct tx_timeout_task;
};
/****************
* Some more prototypes
*/
static netdev_tx_t do_start_xmit(struct sk_buff *skb,
struct net_device *dev);
static void xirc_tx_timeout(struct net_device *dev);
static void xirc2ps_tx_timeout_task(struct work_struct *work);
static void set_addresses(struct net_device *dev);
static void set_multicast_list(struct net_device *dev);
static int set_card_type(struct pcmcia_device *link);
static int do_config(struct net_device *dev, struct ifmap *map);
static int do_open(struct net_device *dev);
static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static const struct ethtool_ops netdev_ethtool_ops;
static void hardreset(struct net_device *dev);
static void do_reset(struct net_device *dev, int full);
static int init_mii(struct net_device *dev);
static void do_powerdown(struct net_device *dev);
static int do_stop(struct net_device *dev);
/*=============== Helper functions =========================*/
#define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR)
#define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))
#define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))
#define PutByte(reg,value) outb((value), ioaddr+(reg))
#define PutWord(reg,value) outw((value), ioaddr+(reg))
/*====== Functions used for debugging =================================*/
#if 0 /* reading regs may change system status */
static void
PrintRegisters(struct net_device *dev)
{
unsigned int ioaddr = dev->base_addr;
if (pc_debug > 1) {
int i, page;
printk(KERN_DEBUG pr_fmt("Register common: "));
for (i = 0; i < 8; i++)
pr_cont(" %2.2x", GetByte(i));
pr_cont("\n");
for (page = 0; page <= 8; page++) {
printk(KERN_DEBUG pr_fmt("Register page %2x: "), page);
SelectPage(page);
for (i = 8; i < 16; i++)
pr_cont(" %2.2x", GetByte(i));
pr_cont("\n");
}
for (page=0x40 ; page <= 0x5f; page++) {
if (page == 0x43 || (page >= 0x46 && page <= 0x4f) ||
(page >= 0x51 && page <=0x5e))
continue;
printk(KERN_DEBUG pr_fmt("Register page %2x: "), page);
SelectPage(page);
for (i = 8; i < 16; i++)
pr_cont(" %2.2x", GetByte(i));
pr_cont("\n");
}
}
}
#endif /* 0 */
/*============== MII Management functions ===============*/
/****************
* Turn around for read
*/
static void
mii_idle(unsigned int ioaddr)
{
PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */
udelay(1);
PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */
udelay(1);
}
/****************
* Write a bit to MDI/O
*/
static void
mii_putbit(unsigned int ioaddr, unsigned data)
{
#if 1
if (data) {
PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */
udelay(1);
PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */
udelay(1);
} else {
PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */
udelay(1);
PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */
udelay(1);
}
#else
if (data) {
PutWord(XIRCREG2_GPR2-1, 0x0e0e);
udelay(1);
PutWord(XIRCREG2_GPR2-1, 0x0f0f);
udelay(1);
} else {
PutWord(XIRCREG2_GPR2-1, 0x0c0c);
udelay(1);
PutWord(XIRCREG2_GPR2-1, 0x0d0d);
udelay(1);
}
#endif
}
/****************
* Get a bit from MDI/O
*/
static int
mii_getbit(unsigned int ioaddr)
{
unsigned d;
PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */
udelay(1);
d = GetByte(XIRCREG2_GPR2); /* read MDIO */
PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */
udelay(1);
return d & 0x20; /* read MDIO */
}
static void
mii_wbits(unsigned int ioaddr, unsigned data, int len)
{
unsigned m = 1 << (len-1);
for (; m; m >>= 1)
mii_putbit(ioaddr, data & m);
}
static unsigned
mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg)
{
int i;
unsigned data=0, m;
SelectPage(2);
for (i=0; i < 32; i++) /* 32 bit preamble */
mii_putbit(ioaddr, 1);
mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */
mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */
mii_idle(ioaddr); /* turn around */
mii_getbit(ioaddr);
for (m = 1<<15; m; m >>= 1)
if (mii_getbit(ioaddr))
data |= m;
mii_idle(ioaddr);
return data;
}
static void
mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data,
int len)
{
int i;
SelectPage(2);
for (i=0; i < 32; i++) /* 32 bit preamble */
mii_putbit(ioaddr, 1);
mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */
mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */
mii_putbit(ioaddr, 1); /* turn around */
mii_putbit(ioaddr, 0);
mii_wbits(ioaddr, data, len); /* And write the data */
mii_idle(ioaddr);
}
/*============= Main bulk of functions =========================*/
static const struct net_device_ops netdev_ops = {
.ndo_open = do_open,
.ndo_stop = do_stop,
.ndo_start_xmit = do_start_xmit,
.ndo_tx_timeout = xirc_tx_timeout,
.ndo_set_config = do_config,
.ndo_do_ioctl = do_ioctl,
.ndo_set_rx_mode = set_multicast_list,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
static int
xirc2ps_probe(struct pcmcia_device *link)
{
struct net_device *dev;
struct local_info *local;
dev_dbg(&link->dev, "attach()\n");
/* Allocate the device structure */
dev = alloc_etherdev(sizeof(struct local_info));
if (!dev)
return -ENOMEM;
local = netdev_priv(dev);
local->dev = dev;
local->p_dev = link;
link->priv = dev;
/* General socket configuration */
link->config_index = 1;
/* Fill in card specific entries */
dev->netdev_ops = &netdev_ops;
dev->ethtool_ops = &netdev_ethtool_ops;
dev->watchdog_timeo = TX_TIMEOUT;
INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task);
return xirc2ps_config(link);
} /* xirc2ps_attach */
static void
xirc2ps_detach(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
dev_dbg(&link->dev, "detach\n");
unregister_netdev(dev);
xirc2ps_release(link);
free_netdev(dev);
} /* xirc2ps_detach */
/****************
* Detect the type of the card. s is the buffer with the data of tuple 0x20
* Returns: 0 := not supported
* mediaid=11 and prodid=47
* Media-Id bits:
* Ethernet 0x01
* Tokenring 0x02
* Arcnet 0x04
* Wireless 0x08
* Modem 0x10
* GSM only 0x20
* Prod-Id bits:
* Pocket 0x10
* External 0x20
* Creditcard 0x40
* Cardbus 0x80
*
*/
static int
set_card_type(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
struct local_info *local = netdev_priv(dev);
u8 *buf;
unsigned int cisrev, mediaid, prodid;
size_t len;
len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf);
if (len < 5) {
dev_err(&link->dev, "invalid CIS -- sorry\n");
return 0;
}
cisrev = buf[2];
mediaid = buf[3];
prodid = buf[4];
dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n",
cisrev, mediaid, prodid);
local->mohawk = 0;
local->dingo = 0;
local->modem = 0;
local->card_type = XIR_UNKNOWN;
if (!(prodid & 0x40)) {
pr_notice("Oops: Not a creditcard\n");
return 0;
}
if (!(mediaid & 0x01)) {
pr_notice("Not an Ethernet card\n");
return 0;
}
if (mediaid & 0x10) {
local->modem = 1;
switch(prodid & 15) {
case 1: local->card_type = XIR_CEM ; break;
case 2: local->card_type = XIR_CEM2 ; break;
case 3: local->card_type = XIR_CEM3 ; break;
case 4: local->card_type = XIR_CEM33 ; break;
case 5: local->card_type = XIR_CEM56M;
local->mohawk = 1;
break;
case 6:
case 7: /* 7 is the RealPort 10/56 */
local->card_type = XIR_CEM56 ;
local->mohawk = 1;
local->dingo = 1;
break;
}
} else {
switch(prodid & 15) {
case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
break;
case 2: local->card_type = XIR_CE2; break;
case 3: local->card_type = XIR_CE3;
local->mohawk = 1;
break;
}
}
if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
pr_notice("Sorry, this is an old CE card\n");
return 0;
}
if (local->card_type == XIR_UNKNOWN)
pr_notice("unknown card (mediaid=%02x prodid=%02x)\n", mediaid, prodid);
return 1;
}
/****************
* There are some CE2 cards out which claim to be a CE card.
* This function looks for a "CE2" in the 3rd version field.
* Returns: true if this is a CE2
*/
static int
has_ce2_string(struct pcmcia_device * p_dev)
{
if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2"))
return 1;
return 0;
}
static int
xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data)
{
unsigned int ioaddr;
if ((p_dev->resource[0]->start & 0xf) == 8)
return -ENODEV;
p_dev->resource[0]->end = 16;
p_dev->resource[1]->end = 8;
p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
p_dev->io_lines = 10;
p_dev->resource[1]->start = p_dev->resource[0]->start;
for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
p_dev->resource[0]->start = ioaddr;
if (!pcmcia_request_io(p_dev))
return 0;
}
return -ENODEV;
}
static int
xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data)
{
int *pass = priv_data;
resource_size_t tmp = p_dev->resource[1]->start;
tmp += (*pass ? (p_dev->config_index & 0x20 ? -24 : 8)
: (p_dev->config_index & 0x20 ? 8 : -24));
if ((p_dev->resource[0]->start & 0xf) == 8)
return -ENODEV;
p_dev->resource[0]->end = 18;
p_dev->resource[1]->end = 8;
p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
p_dev->io_lines = 10;
p_dev->resource[1]->start = p_dev->resource[0]->start;
p_dev->resource[0]->start = tmp;
return pcmcia_request_io(p_dev);
}
static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev,
tuple_t *tuple,
void *priv)
{
struct net_device *dev = priv;
int i;
if (tuple->TupleDataLen != 13)
return -EINVAL;
if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) ||
(tuple->TupleData[2] != 6))
return -EINVAL;
/* another try (James Lehmer's CE2 version 4.1)*/
for (i = 2; i < 6; i++)
dev->dev_addr[i] = tuple->TupleData[i+2];
return 0;
};
static int
xirc2ps_config(struct pcmcia_device * link)
{
struct net_device *dev = link->priv;
struct local_info *local = netdev_priv(dev);
unsigned int ioaddr;
int err;
u8 *buf;
size_t len;
local->dingo_ccr = NULL;
dev_dbg(&link->dev, "config\n");
/* Is this a valid card */
if (link->has_manf_id == 0) {
pr_notice("manfid not found in CIS\n");
goto failure;
}
switch (link->manf_id) {
case MANFID_XIRCOM:
local->manf_str = "Xircom";
break;
case MANFID_ACCTON:
local->manf_str = "Accton";
break;
case MANFID_COMPAQ:
case MANFID_COMPAQ2:
local->manf_str = "Compaq";
break;
case MANFID_INTEL:
local->manf_str = "Intel";
break;
case MANFID_TOSHIBA:
local->manf_str = "Toshiba";
break;
default:
pr_notice("Unknown Card Manufacturer ID: 0x%04x\n",
(unsigned)link->manf_id);
goto failure;
}
dev_dbg(&link->dev, "found %s card\n", local->manf_str);
if (!set_card_type(link)) {
pr_notice("this card is not supported\n");
goto failure;
}
/* get the ethernet address from the CIS */
err = pcmcia_get_mac_from_cis(link, dev);
/* not found: try to get the node-id from tuple 0x89 */
if (err) {
len = pcmcia_get_tuple(link, 0x89, &buf);
/* data layout looks like tuple 0x22 */
if (buf && len == 8) {
if (*buf == CISTPL_FUNCE_LAN_NODE_ID) {
int i;
for (i = 2; i < 6; i++)
dev->dev_addr[i] = buf[i+2];
} else
err = -1;
}
kfree(buf);
}
if (err)
err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev);
if (err) {
pr_notice("node-id not found in CIS\n");
goto failure;
}
if (local->modem) {
int pass;
link->config_flags |= CONF_AUTO_SET_IO;
if (local->dingo) {
/* Take the Modem IO port from the CIS and scan for a free
* Ethernet port */
if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL))
goto port_found;
} else {
/* We do 2 passes here: The first one uses the regular mapping and
* the second tries again, thereby considering that the 32 ports are
* mirrored every 32 bytes. Actually we use a mirrored port for
* the Mako if (on the first pass) the COR bit 5 is set.
*/
for (pass=0; pass < 2; pass++)
if (!pcmcia_loop_config(link, xirc2ps_config_check,
&pass))
goto port_found;
/* if special option:
* try to configure as Ethernet only.
* .... */
}
pr_notice("no ports available\n");
} else {
link->io_lines = 10;
link->resource[0]->end = 16;
link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
link->resource[0]->start = ioaddr;
if (!(err = pcmcia_request_io(link)))
goto port_found;
}
link->resource[0]->start = 0; /* let CS decide */
if ((err = pcmcia_request_io(link)))
goto config_error;
}
port_found:
if (err)
goto config_error;
/****************
* Now allocate an interrupt line. Note that this does not
* actually assign a handler to the interrupt.
*/
if ((err=pcmcia_request_irq(link, xirc2ps_interrupt)))
goto config_error;
link->config_flags |= CONF_ENABLE_IRQ;
if (do_sound)
link->config_flags |= CONF_ENABLE_SPKR;
if ((err = pcmcia_enable_device(link)))
goto config_error;
if (local->dingo) {
/* Reset the modem's BAR to the correct value
* This is necessary because in the RequestConfiguration call,
* the base address of the ethernet port (BasePort1) is written
* to the BAR registers of the modem.
*/
err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, (u8)
link->resource[1]->start & 0xff);
if (err)
goto config_error;
err = pcmcia_write_config_byte(link, CISREG_IOBASE_1,
(link->resource[1]->start >> 8) & 0xff);
if (err)
goto config_error;
/* There is no config entry for the Ethernet part which
* is at 0x0800. So we allocate a window into the attribute
* memory and write direct to the CIS registers
*/
link->resource[2]->flags = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM |
WIN_ENABLE;
link->resource[2]->start = link->resource[2]->end = 0;
if ((err = pcmcia_request_window(link, link->resource[2], 0)))
goto config_error;
local->dingo_ccr = ioremap(link->resource[2]->start, 0x1000) + 0x0800;
if ((err = pcmcia_map_mem_page(link, link->resource[2], 0)))
goto config_error;
/* Setup the CCRs; there are no infos in the CIS about the Ethernet
* part.
*/
writeb(0x47, local->dingo_ccr + CISREG_COR);
ioaddr = link->resource[0]->start;
writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
#if 0
{
u_char tmp;
pr_info("ECOR:");
for (i=0; i < 7; i++) {
tmp = readb(local->dingo_ccr + i*2);
pr_cont(" %02x", tmp);
}
pr_cont("\n");
pr_info("DCOR:");
for (i=0; i < 4; i++) {
tmp = readb(local->dingo_ccr + 0x20 + i*2);
pr_cont(" %02x", tmp);
}
pr_cont("\n");
pr_info("SCOR:");
for (i=0; i < 10; i++) {
tmp = readb(local->dingo_ccr + 0x40 + i*2);
pr_cont(" %02x", tmp);
}
pr_cont("\n");
}
#endif
writeb(0x01, local->dingo_ccr + 0x20);
writeb(0x0c, local->dingo_ccr + 0x22);
writeb(0x00, local->dingo_ccr + 0x24);
writeb(0x00, local->dingo_ccr + 0x26);
writeb(0x00, local->dingo_ccr + 0x28);
}
/* The if_port symbol can be set when the module is loaded */
local->probe_port=0;
if (!if_port) {
local->probe_port = dev->if_port = 1;
} else if ((if_port >= 1 && if_port <= 2) ||
(local->mohawk && if_port==4))
dev->if_port = if_port;
else
pr_notice("invalid if_port requested\n");
/* we can now register the device with the net subsystem */
dev->irq = link->irq;
dev->base_addr = link->resource[0]->start;
if (local->dingo)
do_reset(dev, 1); /* a kludge to make the cem56 work */
SET_NETDEV_DEV(dev, &link->dev);
if ((err=register_netdev(dev))) {
pr_notice("register_netdev() failed\n");
goto config_error;
}
/* give some infos about the hardware */
netdev_info(dev, "%s: port %#3lx, irq %d, hwaddr %pM\n",
local->manf_str, (u_long)dev->base_addr, (int)dev->irq,
dev->dev_addr);
return 0;
config_error:
xirc2ps_release(link);
return -ENODEV;
failure:
return -ENODEV;
} /* xirc2ps_config */
static void
xirc2ps_release(struct pcmcia_device *link)
{
dev_dbg(&link->dev, "release\n");
if (link->resource[2]->end) {
struct net_device *dev = link->priv;
struct local_info *local = netdev_priv(dev);
if (local->dingo)
iounmap(local->dingo_ccr - 0x0800);
}
pcmcia_disable_device(link);
} /* xirc2ps_release */
/*====================================================================*/
static int xirc2ps_suspend(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
if (link->open) {
netif_device_detach(dev);
do_powerdown(dev);
}
return 0;
}
static int xirc2ps_resume(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
if (link->open) {
do_reset(dev,1);
netif_device_attach(dev);
}
return 0;
}
/*====================================================================*/
/****************
* This is the Interrupt service route.
*/
static irqreturn_t
xirc2ps_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct local_info *lp = netdev_priv(dev);
unsigned int ioaddr;
u_char saved_page;
unsigned bytes_rcvd;
unsigned int_status, eth_status, rx_status, tx_status;
unsigned rsr, pktlen;
ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
* is this something to worry about?
* -- on a laptop?
*/
if (!netif_device_present(dev))
return IRQ_HANDLED;
ioaddr = dev->base_addr;
if (lp->mohawk) { /* must disable the interrupt */
PutByte(XIRCREG_CR, 0);
}
pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
saved_page = GetByte(XIRCREG_PR);
/* Read the ISR to see whats the cause for the interrupt.
* This also clears the interrupt flags on CE2 cards
*/
int_status = GetByte(XIRCREG_ISR);
bytes_rcvd = 0;
loop_entry:
if (int_status == 0xff) { /* card may be ejected */
pr_debug("%s: interrupt %d for dead card\n", dev->name, irq);
goto leave;
}
eth_status = GetByte(XIRCREG_ESR);
SelectPage(0x40);
rx_status = GetByte(XIRCREG40_RXST0);
PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
tx_status = GetByte(XIRCREG40_TXST0);
tx_status |= GetByte(XIRCREG40_TXST1) << 8;
PutByte(XIRCREG40_TXST0, 0);
PutByte(XIRCREG40_TXST1, 0);
pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
dev->name, int_status, eth_status, rx_status, tx_status);
/***** receive section ******/
SelectPage(0);
while (eth_status & FullPktRcvd) {
rsr = GetByte(XIRCREG0_RSR);
if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
/* too many bytes received during this int, drop the rest of the
* packets */
dev->stats.rx_dropped++;
pr_debug("%s: RX drop, too much done\n", dev->name);
} else if (rsr & PktRxOk) {
struct sk_buff *skb;
pktlen = GetWord(XIRCREG0_RBC);
bytes_rcvd += pktlen;
pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen);
/* 1 extra so we can use insw */
skb = netdev_alloc_skb(dev, pktlen + 3);
if (!skb) {
dev->stats.rx_dropped++;
} else { /* okay get the packet */
skb_reserve(skb, 2);
if (lp->silicon == 0 ) { /* work around a hardware bug */
unsigned rhsa; /* receive start address */
SelectPage(5);
rhsa = GetWord(XIRCREG5_RHSA0);
SelectPage(0);
rhsa += 3; /* skip control infos */
if (rhsa >= 0x8000)
rhsa = 0;
if (rhsa + pktlen > 0x8000) {
unsigned i;
u_char *buf = skb_put(skb, pktlen);
for (i=0; i < pktlen ; i++, rhsa++) {
buf[i] = GetByte(XIRCREG_EDP);
if (rhsa == 0x8000) {
rhsa = 0;
i--;
}
}
} else {
insw(ioaddr+XIRCREG_EDP,
skb_put(skb, pktlen), (pktlen+1)>>1);
}
}
#if 0
else if (lp->mohawk) {
/* To use this 32 bit access we should use
* a manual optimized loop
* Also the words are swapped, we can get more
* performance by using 32 bit access and swapping
* the words in a register. Will need this for cardbus
*
* Note: don't forget to change the ALLOC_SKB to .. +3
*/
unsigned i;
u_long *p = skb_put(skb, pktlen);
register u_long a;
unsigned int edpreg = ioaddr+XIRCREG_EDP-2;
for (i=0; i < len ; i += 4, p++) {
a = inl(edpreg);
__asm__("rorl $16,%0\n\t"
:"=q" (a)
: "0" (a));
*p = a;
}
}
#endif
else {
insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
(pktlen+1)>>1);
}
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += pktlen;
if (!(rsr & PhyPkt))
dev->stats.multicast++;
}
} else { /* bad packet */
pr_debug("rsr=%#02x\n", rsr);
}
if (rsr & PktTooLong) {
dev->stats.rx_frame_errors++;
pr_debug("%s: Packet too long\n", dev->name);
}
if (rsr & CRCErr) {
dev->stats.rx_crc_errors++;
pr_debug("%s: CRC error\n", dev->name);
}
if (rsr & AlignErr) {
dev->stats.rx_fifo_errors++; /* okay ? */
pr_debug("%s: Alignment error\n", dev->name);
}
/* clear the received/dropped/error packet */
PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
/* get the new ethernet status */
eth_status = GetByte(XIRCREG_ESR);
}
if (rx_status & 0x10) { /* Receive overrun */
dev->stats.rx_over_errors++;
PutByte(XIRCREG_CR, ClearRxOvrun);
pr_debug("receive overrun cleared\n");
}
/***** transmit section ******/
if (int_status & PktTxed) {
unsigned n, nn;
n = lp->last_ptr_value;
nn = GetByte(XIRCREG0_PTR);
lp->last_ptr_value = nn;
if (nn < n) /* rollover */
dev->stats.tx_packets += 256 - n;
else if (n == nn) { /* happens sometimes - don't know why */
pr_debug("PTR not changed?\n");
} else
dev->stats.tx_packets += lp->last_ptr_value - n;
netif_wake_queue(dev);
}
if (tx_status & 0x0002) { /* Excessive collisions */
pr_debug("tx restarted due to excessive collisions\n");
PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
}
if (tx_status & 0x0040)
dev->stats.tx_aborted_errors++;
/* recalculate our work chunk so that we limit the duration of this
* ISR to about 1/10 of a second.
* Calculate only if we received a reasonable amount of bytes.
*/
if (bytes_rcvd > 1000) {
u_long duration = jiffies - start_ticks;
if (duration >= HZ/10) { /* if more than about 1/10 second */
maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
if (maxrx_bytes < 2000)
maxrx_bytes = 2000;
else if (maxrx_bytes > 22000)
maxrx_bytes = 22000;
pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n",
maxrx_bytes, bytes_rcvd, duration);
} else if (!duration && maxrx_bytes < 22000) {
/* now much faster */
maxrx_bytes += 2000;
if (maxrx_bytes > 22000)
maxrx_bytes = 22000;
pr_debug("set maxrx=%u\n", maxrx_bytes);
}
}
leave:
if (lockup_hack) {
if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
goto loop_entry;
}
SelectPage(saved_page);
PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
/* Instead of dropping packets during a receive, we could
* force an interrupt with this command:
* PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
*/
return IRQ_HANDLED;
} /* xirc2ps_interrupt */
/*====================================================================*/
static void
xirc2ps_tx_timeout_task(struct work_struct *work)
{
struct local_info *local =
container_of(work, struct local_info, tx_timeout_task);
struct net_device *dev = local->dev;
/* reset the card */
do_reset(dev,1);
netif_trans_update(dev); /* prevent tx timeout */
netif_wake_queue(dev);
}
static void
xirc_tx_timeout(struct net_device *dev)
{
struct local_info *lp = netdev_priv(dev);
dev->stats.tx_errors++;
netdev_notice(dev, "transmit timed out\n");
schedule_work(&lp->tx_timeout_task);
}
static netdev_tx_t
do_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct local_info *lp = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
int okay;
unsigned freespace;
unsigned pktlen = skb->len;
pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n",
skb, dev, pktlen);
/* adjust the packet length to min. required
* and hope that the buffer is large enough
* to provide some random data.
* fixme: For Mohawk we can change this by sending
* a larger packetlen than we actually have; the chip will
* pad this in his buffer with random bytes
*/
if (pktlen < ETH_ZLEN)
{
if (skb_padto(skb, ETH_ZLEN))
return NETDEV_TX_OK;
pktlen = ETH_ZLEN;
}
netif_stop_queue(dev);
SelectPage(0);
PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
freespace = GetWord(XIRCREG0_TSO);
okay = freespace & 0x8000;
freespace &= 0x7fff;
/* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
okay = pktlen +2 < freespace;
pr_debug("%s: avail. tx space=%u%s\n",
dev->name, freespace, okay ? " (okay)":" (not enough)");
if (!okay) { /* not enough space */
return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */
}
/* send the packet */
PutWord(XIRCREG_EDP, (u_short)pktlen);
outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
if (pktlen & 1)
PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
if (lp->mohawk)
PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
dev_kfree_skb (skb);
dev->stats.tx_bytes += pktlen;
netif_start_queue(dev);
return NETDEV_TX_OK;
}
struct set_address_info {
int reg_nr;
int page_nr;
int mohawk;
unsigned int ioaddr;
};
static void set_address(struct set_address_info *sa_info, char *addr)
{
unsigned int ioaddr = sa_info->ioaddr;
int i;
for (i = 0; i < 6; i++) {
if (sa_info->reg_nr > 15) {
sa_info->reg_nr = 8;
sa_info->page_nr++;
SelectPage(sa_info->page_nr);
}
if (sa_info->mohawk)
PutByte(sa_info->reg_nr++, addr[5 - i]);
else
PutByte(sa_info->reg_nr++, addr[i]);
}
}
/****************
* Set all addresses: This first one is the individual address,
* the next 9 addresses are taken from the multicast list and
* the rest is filled with the individual address.
*/
static void set_addresses(struct net_device *dev)
{
unsigned int ioaddr = dev->base_addr;
struct local_info *lp = netdev_priv(dev);
struct netdev_hw_addr *ha;
struct set_address_info sa_info;
int i;
/*
* Setup the info structure so that by first set_address call it will do
* SelectPage with the right page number. Hence these ones here.
*/
sa_info.reg_nr = 15 + 1;
sa_info.page_nr = 0x50 - 1;
sa_info.mohawk = lp->mohawk;
sa_info.ioaddr = ioaddr;
set_address(&sa_info, dev->dev_addr);
i = 0;
netdev_for_each_mc_addr(ha, dev) {
if (i++ == 9)
break;
set_address(&sa_info, ha->addr);
}
while (i++ < 9)
set_address(&sa_info, dev->dev_addr);
SelectPage(0);
}
/****************
* Set or clear the multicast filter for this adaptor.
* We can filter up to 9 addresses, if more are requested we set
* multicast promiscuous mode.
*/
static void
set_multicast_list(struct net_device *dev)
{
unsigned int ioaddr = dev->base_addr;
unsigned value;
SelectPage(0x42);
value = GetByte(XIRCREG42_SWC1) & 0xC0;
if (dev->flags & IFF_PROMISC) { /* snoop */
PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */
} else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) {
PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */
} else if (!netdev_mc_empty(dev)) {
/* the chip can filter 9 addresses perfectly */
PutByte(XIRCREG42_SWC1, value | 0x01);
SelectPage(0x40);
PutByte(XIRCREG40_CMD0, Offline);
set_addresses(dev);
SelectPage(0x40);
PutByte(XIRCREG40_CMD0, EnableRecv | Online);
} else { /* standard usage */
PutByte(XIRCREG42_SWC1, value | 0x00);
}
SelectPage(0);
}
static int
do_config(struct net_device *dev, struct ifmap *map)
{
struct local_info *local = netdev_priv(dev);
pr_debug("do_config(%p)\n", dev);
if (map->port != 255 && map->port != dev->if_port) {
if (map->port > 4)
return -EINVAL;
if (!map->port) {
local->probe_port = 1;
dev->if_port = 1;
} else {
local->probe_port = 0;
dev->if_port = map->port;
}
netdev_info(dev, "switching to %s port\n", if_names[dev->if_port]);
do_reset(dev,1); /* not the fine way :-) */
}
return 0;
}
/****************
* Open the driver
*/
static int
do_open(struct net_device *dev)
{
struct local_info *lp = netdev_priv(dev);
struct pcmcia_device *link = lp->p_dev;
dev_dbg(&link->dev, "do_open(%p)\n", dev);
/* Check that the PCMCIA card is still here. */
/* Physical device present signature. */
if (!pcmcia_dev_present(link))
return -ENODEV;
/* okay */
link->open++;
netif_start_queue(dev);
do_reset(dev,1);
return 0;
}
static void netdev_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
strlcpy(info->driver, "xirc2ps_cs", sizeof(info->driver));
snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx",
dev->base_addr);
}
static const struct ethtool_ops netdev_ethtool_ops = {
.get_drvinfo = netdev_get_drvinfo,
};
static int
do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct local_info *local = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
struct mii_ioctl_data *data = if_mii(rq);
pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
dev->name, rq->ifr_ifrn.ifrn_name, cmd,
data->phy_id, data->reg_num, data->val_in, data->val_out);
if (!local->mohawk)
return -EOPNOTSUPP;
switch(cmd) {
case SIOCGMIIPHY: /* Get the address of the PHY in use. */
data->phy_id = 0; /* we have only this address */
/* fall through */
case SIOCGMIIREG: /* Read the specified MII register. */
data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f,
data->reg_num & 0x1f);
break;
case SIOCSMIIREG: /* Write the specified MII register */
mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in,
16);
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static void
hardreset(struct net_device *dev)
{
struct local_info *local = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
SelectPage(4);
udelay(1);
PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
msleep(40); /* wait 40 msec */
if (local->mohawk)
PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
else
PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
msleep(20); /* wait 20 msec */
}
static void
do_reset(struct net_device *dev, int full)
{
struct local_info *local = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
unsigned value;
pr_debug("%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
hardreset(dev);
PutByte(XIRCREG_CR, SoftReset); /* set */
msleep(20); /* wait 20 msec */
PutByte(XIRCREG_CR, 0); /* clear */
msleep(40); /* wait 40 msec */
if (local->mohawk) {
SelectPage(4);
/* set pin GP1 and GP2 to output (0x0c)
* set GP1 to low to power up the ML6692 (0x00)
* set GP2 to high to power up the 10Mhz chip (0x02)
*/
PutByte(XIRCREG4_GPR0, 0x0e);
}
/* give the circuits some time to power up */
msleep(500); /* about 500ms */
local->last_ptr_value = 0;
local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
: (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
if (local->probe_port) {
if (!local->mohawk) {
SelectPage(4);
PutByte(XIRCREG4_GPR0, 4);
local->probe_port = 0;
}
} else if (dev->if_port == 2) { /* enable 10Base2 */
SelectPage(0x42);
PutByte(XIRCREG42_SWC1, 0xC0);
} else { /* enable 10BaseT */
SelectPage(0x42);
PutByte(XIRCREG42_SWC1, 0x80);
}
msleep(40); /* wait 40 msec to let it complete */
#if 0
{
SelectPage(0);
value = GetByte(XIRCREG_ESR); /* read the ESR */
pr_debug("%s: ESR is: %#02x\n", dev->name, value);
}
#endif
/* setup the ECR */
SelectPage(1);
PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
value = GetByte(XIRCREG1_ECR);
#if 0
if (local->mohawk)
value |= DisableLinkPulse;
PutByte(XIRCREG1_ECR, value);
#endif
pr_debug("%s: ECR is: %#02x\n", dev->name, value);
SelectPage(0x42);
PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
if (local->silicon != 1) {
/* set the local memory dividing line.
* The comments in the sample code say that this is only
* settable with the scipper version 2 which is revision 0.
* Always for CE3 cards
*/
SelectPage(2);
PutWord(XIRCREG2_RBS, 0x2000);
}
if (full)
set_addresses(dev);
/* Hardware workaround:
* The receive byte pointer after reset is off by 1 so we need
* to move the offset pointer back to 0.
*/
SelectPage(0);
PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
/* setup MAC IMRs and clear status registers */
SelectPage(0x40); /* Bit 7 ... bit 0 */
PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
if (full && local->mohawk && init_mii(dev)) {
if (dev->if_port == 4 || local->dingo || local->new_mii) {
netdev_info(dev, "MII selected\n");
SelectPage(2);
PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
msleep(20);
} else {
netdev_info(dev, "MII detected; using 10mbs\n");
SelectPage(0x42);
if (dev->if_port == 2) /* enable 10Base2 */
PutByte(XIRCREG42_SWC1, 0xC0);
else /* enable 10BaseT */
PutByte(XIRCREG42_SWC1, 0x80);
msleep(40); /* wait 40 msec to let it complete */
}
if (full_duplex)
PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
} else { /* No MII */
SelectPage(0);
value = GetByte(XIRCREG_ESR); /* read the ESR */
dev->if_port = (value & MediaSelect) ? 1 : 2;
}
/* configure the LEDs */
SelectPage(2);
if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
PutByte(XIRCREG2_LED, 0x3b);
else /* Coax: Not-Collision and Activity */
PutByte(XIRCREG2_LED, 0x3a);
if (local->dingo)
PutByte(0x0b, 0x04); /* 100 Mbit LED */
/* enable receiver and put the mac online */
if (full) {
set_multicast_list(dev);
SelectPage(0x40);
PutByte(XIRCREG40_CMD0, EnableRecv | Online);
}
/* setup Ethernet IMR and enable interrupts */
SelectPage(1);
PutByte(XIRCREG1_IMR0, 0xff);
udelay(1);
SelectPage(0);
PutByte(XIRCREG_CR, EnableIntr);
if (local->modem && !local->dingo) { /* do some magic */
if (!(GetByte(0x10) & 0x01))
PutByte(0x10, 0x11); /* unmask master-int bit */
}
if (full)
netdev_info(dev, "media %s, silicon revision %d\n",
if_names[dev->if_port], local->silicon);
/* We should switch back to page 0 to avoid a bug in revision 0
* where regs with offset below 8 can't be read after an access
* to the MAC registers */
SelectPage(0);
}
/****************
* Initialize the Media-Independent-Interface
* Returns: True if we have a good MII
*/
static int
init_mii(struct net_device *dev)
{
struct local_info *local = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
unsigned control, status, linkpartner;
int i;
if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
dev->if_port = if_port;
local->probe_port = 0;
return 1;
}
status = mii_rd(ioaddr, 0, 1);
if ((status & 0xff00) != 0x7800)
return 0; /* No MII */
local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
if (local->probe_port)
control = 0x1000; /* auto neg */
else if (dev->if_port == 4)
control = 0x2000; /* no auto neg, 100mbs mode */
else
control = 0x0000; /* no auto neg, 10mbs mode */
mii_wr(ioaddr, 0, 0, control, 16);
udelay(100);
control = mii_rd(ioaddr, 0, 0);
if (control & 0x0400) {
netdev_notice(dev, "can't take PHY out of isolation mode\n");
local->probe_port = 0;
return 0;
}
if (local->probe_port) {
/* according to the DP83840A specs the auto negotiation process
* may take up to 3.5 sec, so we use this also for our ML6692
* Fixme: Better to use a timer here!
*/
for (i=0; i < 35; i++) {
msleep(100); /* wait 100 msec */
status = mii_rd(ioaddr, 0, 1);
if ((status & 0x0020) && (status & 0x0004))
break;
}
if (!(status & 0x0020)) {
netdev_info(dev, "autonegotiation failed; using 10mbs\n");
if (!local->new_mii) {
control = 0x0000;
mii_wr(ioaddr, 0, 0, control, 16);
udelay(100);
SelectPage(0);
dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
}
} else {
linkpartner = mii_rd(ioaddr, 0, 5);
netdev_info(dev, "MII link partner: %04x\n", linkpartner);
if (linkpartner & 0x0080) {
dev->if_port = 4;
} else
dev->if_port = 1;
}
}
return 1;
}
static void
do_powerdown(struct net_device *dev)
{
unsigned int ioaddr = dev->base_addr;
pr_debug("do_powerdown(%p)\n", dev);
SelectPage(4);
PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
SelectPage(0);
}
static int
do_stop(struct net_device *dev)
{
unsigned int ioaddr = dev->base_addr;
struct local_info *lp = netdev_priv(dev);
struct pcmcia_device *link = lp->p_dev;
dev_dbg(&link->dev, "do_stop(%p)\n", dev);
if (!link)
return -ENODEV;
netif_stop_queue(dev);
SelectPage(0);
PutByte(XIRCREG_CR, 0); /* disable interrupts */
SelectPage(0x01);
PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
SelectPage(4);
PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
SelectPage(0);
link->open--;
return 0;
}
static const struct pcmcia_device_id xirc2ps_ids[] = {
PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a),
PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),
PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),
PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a),
PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2),
PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37),
PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073),
PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3),
PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609),
PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46),
PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2),
PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769),
PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db),
PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf),
/* also matches CFE-10 cards! */
/* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */
PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids);
static struct pcmcia_driver xirc2ps_cs_driver = {
.owner = THIS_MODULE,
.name = "xirc2ps_cs",
.probe = xirc2ps_probe,
.remove = xirc2ps_detach,
.id_table = xirc2ps_ids,
.suspend = xirc2ps_suspend,
.resume = xirc2ps_resume,
};
module_pcmcia_driver(xirc2ps_cs_driver);
#ifndef MODULE
static int __init setup_xirc2ps_cs(char *str)
{
/* if_port, full_duplex, do_sound, lockup_hack
*/
int ints[10] = { -1 };
str = get_options(str, 9, ints);
#define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
MAYBE_SET(if_port, 3);
MAYBE_SET(full_duplex, 4);
MAYBE_SET(do_sound, 5);
MAYBE_SET(lockup_hack, 6);
#undef MAYBE_SET
return 1;
}
__setup("xirc2ps_cs=", setup_xirc2ps_cs);
#endif