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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/net/ethernet/xircom
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/ethernet/xircom')
-rw-r--r--drivers/net/ethernet/xircom/Kconfig30
-rw-r--r--drivers/net/ethernet/xircom/Makefile6
-rw-r--r--drivers/net/ethernet/xircom/xirc2ps_cs.c1796
3 files changed, 1832 insertions, 0 deletions
diff --git a/drivers/net/ethernet/xircom/Kconfig b/drivers/net/ethernet/xircom/Kconfig
new file mode 100644
index 000000000..7497b9bea
--- /dev/null
+++ b/drivers/net/ethernet/xircom/Kconfig
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Xircom network device configuration
+#
+
+config NET_VENDOR_XIRCOM
+ bool "Xircom devices"
+ default y
+ depends on PCMCIA
+ help
+ If you have a network (Ethernet) card belonging to this class, say Y.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about Xircom cards. If you say Y, you will be asked for
+ your specific card in the following questions.
+
+if NET_VENDOR_XIRCOM
+
+config PCMCIA_XIRC2PS
+ tristate "Xircom 16-bit PCMCIA support"
+ depends on PCMCIA
+ help
+ Say Y here if you intend to attach a Xircom 16-bit PCMCIA (PC-card)
+ Ethernet or Fast Ethernet card to your computer.
+
+ To compile this driver as a module, choose M here: the module will be
+ called xirc2ps_cs. If unsure, say N.
+
+endif # NET_VENDOR_XIRCOM
diff --git a/drivers/net/ethernet/xircom/Makefile b/drivers/net/ethernet/xircom/Makefile
new file mode 100644
index 000000000..07667fefa
--- /dev/null
+++ b/drivers/net/ethernet/xircom/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the Xircom network device drivers.
+#
+
+obj-$(CONFIG_PCMCIA_XIRC2PS) += xirc2ps_cs.o
diff --git a/drivers/net/ethernet/xircom/xirc2ps_cs.c b/drivers/net/ethernet/xircom/xirc2ps_cs.c
new file mode 100644
index 000000000..9f505cf02
--- /dev/null
+++ b/drivers/net/ethernet/xircom/xirc2ps_cs.c
@@ -0,0 +1,1796 @@
+/* [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 <linux/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, unsigned int txqueue);
+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_eth_ioctl = do_ioctl,
+ .ndo_set_rx_mode = set_multicast_list,
+ .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;
+ struct local_info *local = netdev_priv(dev);
+
+ netif_carrier_off(dev);
+ netif_tx_disable(dev);
+ cancel_work_sync(&local->tx_timeout_task);
+
+ 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;
+
+ 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)*/
+ dev_addr_mod(dev, 2, &tuple->TupleData[2], 4);
+ 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)
+ dev_addr_mod(dev, 2, &buf[2], 4);
+ 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:
+
+ /****************
+ * 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, unsigned int txqueue)
+{
+ 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, const 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)
+{
+ strscpy(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 */
+ fallthrough;
+ 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->name, 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, ARRAY_SIZE(ints), 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