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提交 c46920da 编写于 作者: D David S. Miller
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Merge branch 'for-david' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6

上级 f5f4cf08 6476a907
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Documentation/DocBook/Makefile
浏览文件 @ c46920da
......@@ -6,7 +6,7 @@
# To add a new book the only step required is to add the book to the
# list of DOCBOOKS.
DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml \
DOCBOOKS := z8530book.xml mcabook.xml \
kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
procfs-guide.xml writing_usb_driver.xml networking.xml \
kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \
......
Documentation/DocBook/networking.tmpl
浏览文件 @ c46920da
......@@ -98,9 +98,6 @@
X!Enet/core/wireless.c
</sect1>
-->
<sect1><title>Synchronous PPP</title>
!Edrivers/net/wan/syncppp.c
</sect1>
</chapter>
</book>
Documentation/DocBook/wanbook.tmpl 已删除 100644 → 0
浏览文件 @ f5f4cf08
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
<book id="WANGuide">
<bookinfo>
<title>Synchronous PPP and Cisco HDLC Programming Guide</title>
<authorgroup>
<author>
<firstname>Alan</firstname>
<surname>Cox</surname>
<affiliation>
<address>
<email>alan@lxorguk.ukuu.org.uk</email>
</address>
</affiliation>
</author>
</authorgroup>
<copyright>
<year>2000</year>
<holder>Alan Cox</holder>
</copyright>
<legalnotice>
<para>
This documentation 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.
</para>
<para>
This program 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.
</para>
<para>
You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
MA 02111-1307 USA
</para>
<para>
For more details see the file COPYING in the source
distribution of Linux.
</para>
</legalnotice>
</bookinfo>
<toc></toc>
<chapter id="intro">
<title>Introduction</title>
<para>
The syncppp drivers in Linux provide a fairly complete
implementation of Cisco HDLC and a minimal implementation of
PPP. The longer term goal is to switch the PPP layer to the
generic PPP interface that is new in Linux 2.3.x. The API should
remain unchanged when this is done, but support will then be
available for IPX, compression and other PPP features
</para>
</chapter>
<chapter id="bugs">
<title>Known Bugs And Assumptions</title>
<para>
<variablelist>
<varlistentry><term>PPP is minimal</term>
<listitem>
<para>
The current PPP implementation is very basic, although sufficient
for most wan usages.
</para>
</listitem></varlistentry>
<varlistentry><term>Cisco HDLC Quirks</term>
<listitem>
<para>
Currently we do not end all packets with the correct Cisco multicast
or unicast flags. Nothing appears to mind too much but this should
be corrected.
</para>
</listitem></varlistentry>
</variablelist>
</para>
</chapter>
<chapter id="pubfunctions">
<title>Public Functions Provided</title>
!Edrivers/net/wan/syncppp.c
</chapter>
</book>
Documentation/networking/generic-hdlc.txt
浏览文件 @ c46920da
......@@ -3,15 +3,15 @@ Krzysztof Halasa <khc@pm.waw.pl>
Generic HDLC layer currently supports:
1. Frame Relay (ANSI, CCITT, Cisco and no LMI).
1. Frame Relay (ANSI, CCITT, Cisco and no LMI)
- Normal (routed) and Ethernet-bridged (Ethernet device emulation)
interfaces can share a single PVC.
- ARP support (no InARP support in the kernel - there is an
experimental InARP user-space daemon available on:
http://www.kernel.org/pub/linux/utils/net/hdlc/).
2. raw HDLC - either IP (IPv4) interface or Ethernet device emulation.
3. Cisco HDLC.
4. PPP (uses syncppp.c).
2. raw HDLC - either IP (IPv4) interface or Ethernet device emulation
3. Cisco HDLC
4. PPP
5. X.25 (uses X.25 routines).
Generic HDLC is a protocol driver only - it needs a low-level driver
......
drivers/net/wan/Makefile
浏览文件 @ c46920da
......@@ -14,7 +14,7 @@ obj-$(CONFIG_HDLC_RAW) += hdlc_raw.o
obj-$(CONFIG_HDLC_RAW_ETH) += hdlc_raw_eth.o
obj-$(CONFIG_HDLC_CISCO) += hdlc_cisco.o
obj-$(CONFIG_HDLC_FR) += hdlc_fr.o
obj-$(CONFIG_HDLC_PPP) += hdlc_ppp.o syncppp.o
obj-$(CONFIG_HDLC_PPP) += hdlc_ppp.o
obj-$(CONFIG_HDLC_X25) += hdlc_x25.o
pc300-y := pc300_drv.o
......
drivers/net/wan/c101.c
浏览文件 @ c46920da
......@@ -88,7 +88,7 @@ static card_t **new_card = &first_card;
/* EDA address register must be set in EDAL, EDAH order - 8 bit ISA bus */
#define sca_outw(value, reg, card) do { \
writeb(value & 0xFF, (card)->win0base + C101_SCA + (reg)); \
writeb((value >> 8 ) & 0xFF, (card)->win0base + C101_SCA + (reg+1));\
writeb((value >> 8 ) & 0xFF, (card)->win0base + C101_SCA + (reg + 1));\
} while(0)
#define port_to_card(port) (port)
......@@ -113,7 +113,7 @@ static inline void openwin(card_t *card, u8 page)
}
#include "hd6457x.c"
#include "hd64570.c"
static inline void set_carrier(port_t *port)
......@@ -381,7 +381,7 @@ static int __init c101_run(unsigned long irq, unsigned long winbase)
return result;
}
sca_init_sync_port(card); /* Set up C101 memory */
sca_init_port(card); /* Set up C101 memory */
set_carrier(card);
printk(KERN_INFO "%s: Moxa C101 on IRQ%u,"
......
drivers/net/wan/hd6457x.c → drivers/net/wan/hd64570.c
浏览文件 @ c46920da
/*
* Hitachi SCA HD64570 and HD64572 common driver for Linux
* Hitachi SCA HD64570 driver for Linux
*
* Copyright (C) 1998-2003 Krzysztof Halasa <khc@pm.waw.pl>
*
......@@ -7,9 +7,7 @@
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*
* Sources of information:
* Hitachi HD64570 SCA User's Manual
* Hitachi HD64572 SCA-II User's Manual
* Source of information: Hitachi HD64570 SCA User's Manual
*
* We use the following SCA memory map:
*
......@@ -26,33 +24,26 @@
* tx_ring_buffers * HDLC_MAX_MRU = logical channel #0 TX buffers (if used)
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <linux/hdlc.h>
#include <linux/in.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/bitops.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/hdlc.h>
#if (!defined (__HD64570_H) && !defined (__HD64572_H)) || \
(defined (__HD64570_H) && defined (__HD64572_H))
#error Either hd64570.h or hd64572.h must be included
#endif
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include "hd64570.h"
#define get_msci(port) (phy_node(port) ? MSCI1_OFFSET : MSCI0_OFFSET)
#define get_dmac_rx(port) (phy_node(port) ? DMAC1RX_OFFSET : DMAC0RX_OFFSET)
......@@ -62,16 +53,6 @@
#define SCA_INTR_DMAC_RX(node) (node ? 0x20 : 0x02)
#define SCA_INTR_DMAC_TX(node) (node ? 0x40 : 0x04)
#ifdef __HD64570_H /* HD64570 */
#define sca_outa(value, reg, card) sca_outw(value, reg, card)
#define sca_ina(reg, card) sca_inw(reg, card)
#define writea(value, ptr) writew(value, ptr)
#else /* HD64572 */
#define sca_outa(value, reg, card) sca_outl(value, reg, card)
#define sca_ina(reg, card) sca_inl(reg, card)
#define writea(value, ptr) writel(value, ptr)
#endif
static inline struct net_device *port_to_dev(port_t *port)
{
......@@ -81,8 +62,6 @@ static inline struct net_device *port_to_dev(port_t *port)
static inline int sca_intr_status(card_t *card)
{
u8 result = 0;
#ifdef __HD64570_H /* HD64570 */
u8 isr0 = sca_in(ISR0, card);
u8 isr1 = sca_in(ISR1, card);
......@@ -93,18 +72,6 @@ static inline int sca_intr_status(card_t *card)
if (isr0 & 0x0F) result |= SCA_INTR_MSCI(0);
if (isr0 & 0xF0) result |= SCA_INTR_MSCI(1);
#else /* HD64572 */
u32 isr0 = sca_inl(ISR0, card);
if (isr0 & 0x0000000F) result |= SCA_INTR_DMAC_RX(0);
if (isr0 & 0x000000F0) result |= SCA_INTR_DMAC_TX(0);
if (isr0 & 0x00000F00) result |= SCA_INTR_DMAC_RX(1);
if (isr0 & 0x0000F000) result |= SCA_INTR_DMAC_TX(1);
if (isr0 & 0x003E0000) result |= SCA_INTR_MSCI(0);
if (isr0 & 0x3E000000) result |= SCA_INTR_MSCI(1);
#endif /* HD64570 vs HD64572 */
if (!(result & SCA_INTR_DMAC_TX(0)))
if (sca_in(DSR_TX(0), card) & DSR_EOM)
result |= SCA_INTR_DMAC_TX(0);
......@@ -127,7 +94,6 @@ static inline u16 next_desc(port_t *port, u16 desc, int transmit)
}
static inline u16 desc_abs_number(port_t *port, u16 desc, int transmit)
{
u16 rx_buffs = port_to_card(port)->rx_ring_buffers;
......@@ -139,28 +105,26 @@ static inline u16 desc_abs_number(port_t *port, u16 desc, int transmit)
}
static inline u16 desc_offset(port_t *port, u16 desc, int transmit)
{
/* Descriptor offset always fits in 16 bytes */
/* Descriptor offset always fits in 16 bits */
return desc_abs_number(port, desc, transmit) * sizeof(pkt_desc);
}
static inline pkt_desc __iomem *desc_address(port_t *port, u16 desc, int transmit)
static inline pkt_desc __iomem *desc_address(port_t *port, u16 desc,
int transmit)
{
#ifdef PAGE0_ALWAYS_MAPPED
return (pkt_desc __iomem *)(win0base(port_to_card(port))
+ desc_offset(port, desc, transmit));
+ desc_offset(port, desc, transmit));
#else
return (pkt_desc __iomem *)(winbase(port_to_card(port))
+ desc_offset(port, desc, transmit));
+ desc_offset(port, desc, transmit));
#endif
}
static inline u32 buffer_offset(port_t *port, u16 desc, int transmit)
{
return port_to_card(port)->buff_offset +
......@@ -186,7 +150,7 @@ static inline void sca_set_carrier(port_t *port)
}
static void sca_init_sync_port(port_t *port)
static void sca_init_port(port_t *port)
{
card_t *card = port_to_card(port);
int transmit, i;
......@@ -195,7 +159,7 @@ static void sca_init_sync_port(port_t *port)
port->txin = 0;
port->txlast = 0;
#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED)
#ifndef PAGE0_ALWAYS_MAPPED
openwin(card, 0);
#endif
......@@ -209,7 +173,7 @@ static void sca_init_sync_port(port_t *port)
u16 chain_off = desc_offset(port, i + 1, transmit);
u32 buff_off = buffer_offset(port, i, transmit);
writea(chain_off, &desc->cp);
writew(chain_off, &desc->cp);
writel(buff_off, &desc->bp);
writew(0, &desc->len);
writeb(0, &desc->stat);
......@@ -222,16 +186,14 @@ static void sca_init_sync_port(port_t *port)
sca_out(DCR_ABORT, transmit ? DCR_TX(phy_node(port)) :
DCR_RX(phy_node(port)), card);
#ifdef __HD64570_H
sca_out(0, dmac + CPB, card); /* pointer base */
#endif
/* current desc addr */
sca_outa(desc_offset(port, 0, transmit), dmac + CDAL, card);
sca_out(0, dmac + CPB, card); /* pointer base */
sca_outw(desc_offset(port, 0, transmit), dmac + CDAL, card);
if (!transmit)
sca_outa(desc_offset(port, buffs - 1, transmit),
sca_outw(desc_offset(port, buffs - 1, transmit),
dmac + EDAL, card);
else
sca_outa(desc_offset(port, 0, transmit), dmac + EDAL,
sca_outw(desc_offset(port, 0, transmit), dmac + EDAL,
card);
/* clear frame end interrupt counter */
......@@ -258,7 +220,6 @@ static void sca_init_sync_port(port_t *port)
}
#ifdef NEED_SCA_MSCI_INTR
/* MSCI interrupt service */
static inline void sca_msci_intr(port_t *port)
......@@ -282,17 +243,15 @@ static inline void sca_msci_intr(port_t *port)
#endif
static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, u16 rxin)
static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc,
u16 rxin)
{
struct net_device *dev = port_to_dev(port);
struct sk_buff *skb;
u16 len;
u32 buff;
#ifndef ALL_PAGES_ALWAYS_MAPPED
u32 maxlen;
u8 page;
#endif
len = readw(&desc->len);
skb = dev_alloc_skb(len);
......@@ -302,7 +261,6 @@ static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, u1
}
buff = buffer_offset(port, rxin, 0);
#ifndef ALL_PAGES_ALWAYS_MAPPED
page = buff / winsize(card);
buff = buff % winsize(card);
maxlen = winsize(card) - buff;
......@@ -314,12 +272,10 @@ static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, u1
openwin(card, page + 1);
memcpy_fromio(skb->data + maxlen, winbase(card), len - maxlen);
} else
#endif
memcpy_fromio(skb->data, winbase(card) + buff, len);
memcpy_fromio(skb->data, winbase(card) + buff, len);
#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED)
/* select pkt_desc table page back */
openwin(card, 0);
#ifndef PAGE0_ALWAYS_MAPPED
openwin(card, 0); /* select pkt_desc table page back */
#endif
skb_put(skb, len);
#ifdef DEBUG_PKT
......@@ -333,7 +289,6 @@ static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, u1
}
/* Receive DMA interrupt service */
static inline void sca_rx_intr(port_t *port)
{
......@@ -353,7 +308,7 @@ static inline void sca_rx_intr(port_t *port)
while (1) {
u32 desc_off = desc_offset(port, port->rxin, 0);
pkt_desc __iomem *desc;
u32 cda = sca_ina(dmac + CDAL, card);
u32 cda = sca_inw(dmac + CDAL, card);
if ((cda >= desc_off) && (cda < desc_off + sizeof(pkt_desc)))
break; /* No frame received */
......@@ -377,7 +332,7 @@ static inline void sca_rx_intr(port_t *port)
sca_rx(card, port, desc, port->rxin);
/* Set new error descriptor address */
sca_outa(desc_off, dmac + EDAL, card);
sca_outw(desc_off, dmac + EDAL, card);
port->rxin = next_desc(port, port->rxin, 0);
}
......@@ -386,7 +341,6 @@ static inline void sca_rx_intr(port_t *port)
}
/* Transmit DMA interrupt service */
static inline void sca_tx_intr(port_t *port)
{
......@@ -407,7 +361,7 @@ static inline void sca_tx_intr(port_t *port)
pkt_desc __iomem *desc;
u32 desc_off = desc_offset(port, port->txlast, 1);
u32 cda = sca_ina(dmac + CDAL, card);
u32 cda = sca_inw(dmac + CDAL, card);
if ((cda >= desc_off) && (cda < desc_off + sizeof(pkt_desc)))
break; /* Transmitter is/will_be sending this frame */
......@@ -423,17 +377,13 @@ static inline void sca_tx_intr(port_t *port)
}
static irqreturn_t sca_intr(int irq, void* dev_id)
{
card_t *card = dev_id;
int i;
u8 stat;
int handled = 0;
#ifndef ALL_PAGES_ALWAYS_MAPPED
u8 page = sca_get_page(card);
#endif
while((stat = sca_intr_status(card)) != 0) {
handled = 1;
......@@ -452,14 +402,11 @@ static irqreturn_t sca_intr(int irq, void* dev_id)
}
}
#ifndef ALL_PAGES_ALWAYS_MAPPED
openwin(card, page); /* Restore original page */
#endif
return IRQ_RETVAL(handled);
}
static void sca_set_port(port_t *port)
{
card_t* card = port_to_card(port);
......@@ -497,12 +444,7 @@ static void sca_set_port(port_t *port)
port->tmc = tmc;
/* baud divisor - time constant*/
#ifdef __HD64570_H
sca_out(port->tmc, msci + TMC, card);
#else
sca_out(port->tmc, msci + TMCR, card);
sca_out(port->tmc, msci + TMCT, card);
#endif
/* Set BRG bits */
sca_out(port->rxs, msci + RXS, card);
......@@ -518,7 +460,6 @@ static void sca_set_port(port_t *port)
}
static void sca_open(struct net_device *dev)
{
port_t *port = dev_to_port(dev);
......@@ -540,11 +481,7 @@ static void sca_open(struct net_device *dev)
switch(port->parity) {
case PARITY_CRC16_PR0: md0 = MD0_HDLC | MD0_CRC_16_0; break;
case PARITY_CRC16_PR1: md0 = MD0_HDLC | MD0_CRC_16; break;
#ifdef __HD64570_H
case PARITY_CRC16_PR0_CCITT: md0 = MD0_HDLC | MD0_CRC_ITU_0; break;
#else
case PARITY_CRC32_PR1_CCITT: md0 = MD0_HDLC | MD0_CRC_ITU32; break;
#endif
case PARITY_CRC16_PR1_CCITT: md0 = MD0_HDLC | MD0_CRC_ITU; break;
default: md0 = MD0_HDLC | MD0_CRC_NONE;
}
......@@ -554,35 +491,20 @@ static void sca_open(struct net_device *dev)
sca_out(0x00, msci + MD1, card); /* no address field check */
sca_out(md2, msci + MD2, card);
sca_out(0x7E, msci + IDL, card); /* flag character 0x7E */
#ifdef __HD64570_H
sca_out(CTL_IDLE, msci + CTL, card);
#else
/* Skip the rest of underrun frame */
sca_out(CTL_IDLE | CTL_URCT | CTL_URSKP, msci + CTL, card);
#endif
#ifdef __HD64570_H
/* Allow at least 8 bytes before requesting RX DMA operation */
/* TX with higher priority and possibly with shorter transfers */
sca_out(0x07, msci + RRC, card); /* +1=RXRDY/DMA activation condition*/
sca_out(0x10, msci + TRC0, card); /* = TXRDY/DMA activation condition*/
sca_out(0x14, msci + TRC1, card); /* +1=TXRDY/DMA deactiv condition */
#else
sca_out(0x0F, msci + RNR, card); /* +1=RX DMA activation condition */
sca_out(0x3C, msci + TFS, card); /* +1 = TX start */
sca_out(0x38, msci + TCR, card); /* =Critical TX DMA activ condition */
sca_out(0x38, msci + TNR0, card); /* =TX DMA activation condition */
sca_out(0x3F, msci + TNR1, card); /* +1=TX DMA deactivation condition*/
#endif
/* We're using the following interrupts:
- TXINT (DMAC completed all transmisions, underrun or DCD change)
- all DMA interrupts
*/
sca_set_carrier(port);
#ifdef __HD64570_H
/* MSCI TX INT and RX INT A IRQ enable */
sca_out(IE0_TXINT | IE0_RXINTA, msci + IE0, card);
sca_out(IE1_UDRN | IE1_CDCD, msci + IE1, card);
......@@ -591,21 +513,8 @@ static void sca_open(struct net_device *dev)
/* enable DMA IRQ */
sca_out(sca_in(IER1, card) | (phy_node(port) ? 0xF0 : 0x0F),
IER1, card);
#else
/* MSCI TXINT and RXINTA interrupt enable */
sca_outl(IE0_TXINT | IE0_RXINTA | IE0_UDRN | IE0_CDCD, msci + IE0,
card);
/* DMA & MSCI IRQ enable */
sca_outl(sca_inl(IER0, card) |
(phy_node(port) ? 0x0A006600 : 0x000A0066), IER0, card);
#endif
#ifdef __HD64570_H
sca_out(port->tmc, msci + TMC, card); /* Restore registers */
#else
sca_out(port->tmc, msci + TMCR, card);
sca_out(port->tmc, msci + TMCT, card);
#endif
sca_out(port->rxs, msci + RXS, card);
sca_out(port->txs, msci + TXS, card);
sca_out(CMD_TX_ENABLE, msci + CMD, card);
......@@ -615,7 +524,6 @@ static void sca_open(struct net_device *dev)
}
static void sca_close(struct net_device *dev)
{
port_t *port = dev_to_port(dev);
......@@ -623,23 +531,17 @@ static void sca_close(struct net_device *dev)
/* reset channel */
sca_out(CMD_RESET, get_msci(port) + CMD, port_to_card(port));
#ifdef __HD64570_H
/* disable MSCI interrupts */
sca_out(sca_in(IER0, card) & (phy_node(port) ? 0x0F : 0xF0),
IER0, card);
/* disable DMA interrupts */
sca_out(sca_in(IER1, card) & (phy_node(port) ? 0x0F : 0xF0),
IER1, card);
#else
/* disable DMA & MSCI IRQ */
sca_outl(sca_inl(IER0, card) &
(phy_node(port) ? 0x00FF00FF : 0xFF00FF00), IER0, card);
#endif
netif_stop_queue(dev);
}
static int sca_attach(struct net_device *dev, unsigned short encoding,
unsigned short parity)
{
......@@ -653,11 +555,7 @@ static int sca_attach(struct net_device *dev, unsigned short encoding,
if (parity != PARITY_NONE &&
parity != PARITY_CRC16_PR0 &&
parity != PARITY_CRC16_PR1 &&
#ifdef __HD64570_H
parity != PARITY_CRC16_PR0_CCITT &&
#else
parity != PARITY_CRC32_PR1_CCITT &&
#endif
parity != PARITY_CRC16_PR1_CCITT)
return -EINVAL;
......@@ -667,34 +565,30 @@ static int sca_attach(struct net_device *dev, unsigned short encoding,
}
#ifdef DEBUG_RINGS
static void sca_dump_rings(struct net_device *dev)
{
port_t *port = dev_to_port(dev);
card_t *card = port_to_card(port);
u16 cnt;
#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED)
u8 page;
#endif
#ifndef PAGE0_ALWAYS_MAPPED
u8 page = sca_get_page(card);
#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED)
page = sca_get_page(card);
openwin(card, 0);
#endif
printk(KERN_DEBUG "RX ring: CDA=%u EDA=%u DSR=%02X in=%u %sactive",
sca_ina(get_dmac_rx(port) + CDAL, card),
sca_ina(get_dmac_rx(port) + EDAL, card),
sca_inw(get_dmac_rx(port) + CDAL, card),
sca_inw(get_dmac_rx(port) + EDAL, card),
sca_in(DSR_RX(phy_node(port)), card), port->rxin,
sca_in(DSR_RX(phy_node(port)), card) & DSR_DE?"":"in");
sca_in(DSR_RX(phy_node(port)), card) & DSR_DE ? "" : "in");
for (cnt = 0; cnt < port_to_card(port)->rx_ring_buffers; cnt++)
printk(" %02X", readb(&(desc_address(port, cnt, 0)->stat)));
printk("\n" KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u "
"last=%u %sactive",
sca_ina(get_dmac_tx(port) + CDAL, card),
sca_ina(get_dmac_tx(port) + EDAL, card),
sca_inw(get_dmac_tx(port) + CDAL, card),
sca_inw(get_dmac_tx(port) + EDAL, card),
sca_in(DSR_TX(phy_node(port)), card), port->txin, port->txlast,
sca_in(DSR_TX(phy_node(port)), card) & DSR_DE ? "" : "in");
......@@ -702,12 +596,8 @@ static void sca_dump_rings(struct net_device *dev)
printk(" %02X", readb(&(desc_address(port, cnt, 1)->stat)));
printk("\n");
printk(KERN_DEBUG "MSCI: MD: %02x %02x %02x, "
"ST: %02x %02x %02x %02x"
#ifdef __HD64572_H
" %02x"
#endif
", FST: %02x CST: %02x %02x\n",
printk(KERN_DEBUG "MSCI: MD: %02x %02x %02x, ST: %02x %02x %02x %02x,"
" FST: %02x CST: %02x %02x\n",
sca_in(get_msci(port) + MD0, card),
sca_in(get_msci(port) + MD1, card),
sca_in(get_msci(port) + MD2, card),
......@@ -715,52 +605,33 @@ static void sca_dump_rings(struct net_device *dev)
sca_in(get_msci(port) + ST1, card),
sca_in(get_msci(port) + ST2, card),
sca_in(get_msci(port) + ST3, card),
#ifdef __HD64572_H
sca_in(get_msci(port) + ST4, card),
#endif
sca_in(get_msci(port) + FST, card),
sca_in(get_msci(port) + CST0, card),
sca_in(get_msci(port) + CST1, card));
#ifdef __HD64572_H
printk(KERN_DEBUG "ILAR: %02x ISR: %08x %08x\n", sca_in(ILAR, card),
sca_inl(ISR0, card), sca_inl(ISR1, card));
#else
printk(KERN_DEBUG "ISR: %02x %02x %02x\n", sca_in(ISR0, card),
sca_in(ISR1, card), sca_in(ISR2, card));
#endif
#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED)
#ifndef PAGE0_ALWAYS_MAPPED
openwin(card, page); /* Restore original page */
#endif
}
#endif /* DEBUG_RINGS */
static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
{
port_t *port = dev_to_port(dev);
card_t *card = port_to_card(port);
pkt_desc __iomem *desc;
u32 buff, len;
#ifndef ALL_PAGES_ALWAYS_MAPPED
u8 page;
u32 maxlen;
#endif
spin_lock_irq(&port->lock);
desc = desc_address(port, port->txin + 1, 1);
if (readb(&desc->stat)) { /* allow 1 packet gap */
/* should never happen - previous xmit should stop queue */
#ifdef DEBUG_PKT
printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name);
#endif
netif_stop_queue(dev);
spin_unlock_irq(&port->lock);
return 1; /* request packet to be queued */
}
BUG_ON(readb(&desc->stat)); /* previous xmit should stop queue */
#ifdef DEBUG_PKT
printk(KERN_DEBUG "%s TX(%i):", dev->name, skb->len);
......@@ -770,7 +641,6 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
desc = desc_address(port, port->txin, 1);
buff = buffer_offset(port, port->txin, 1);
len = skb->len;
#ifndef ALL_PAGES_ALWAYS_MAPPED
page = buff / winsize(card);
buff = buff % winsize(card);
maxlen = winsize(card) - buff;
......@@ -780,12 +650,10 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
memcpy_toio(winbase(card) + buff, skb->data, maxlen);
openwin(card, page + 1);
memcpy_toio(winbase(card), skb->data + maxlen, len - maxlen);
}
else
#endif
} else
memcpy_toio(winbase(card) + buff, skb->data, len);
#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED)
#ifndef PAGE0_ALWAYS_MAPPED
openwin(card, 0); /* select pkt_desc table page back */
#endif
writew(len, &desc->len);
......@@ -793,7 +661,7 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
dev->trans_start = jiffies;
port->txin = next_desc(port, port->txin, 1);
sca_outa(desc_offset(port, port->txin, 1),
sca_outw(desc_offset(port, port->txin, 1),
get_dmac_tx(port) + EDAL, card);
sca_out(DSR_DE, DSR_TX(phy_node(port)), card); /* Enable TX DMA */
......@@ -809,40 +677,29 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
}
#ifdef NEED_DETECT_RAM
static u32 __devinit sca_detect_ram(card_t *card, u8 __iomem *rambase, u32 ramsize)
static u32 __devinit sca_detect_ram(card_t *card, u8 __iomem *rambase,
u32 ramsize)
{
/* Round RAM size to 32 bits, fill from end to start */
u32 i = ramsize &= ~3;
#ifndef ALL_PAGES_ALWAYS_MAPPED
u32 size = winsize(card);
openwin(card, (i - 4) / size); /* select last window */
#endif
do {
i -= 4;
#ifndef ALL_PAGES_ALWAYS_MAPPED
if ((i + 4) % size == 0)
openwin(card, i / size);
writel(i ^ 0x12345678, rambase + i % size);
#else
writel(i ^ 0x12345678, rambase + i);
#endif
}while (i > 0);
} while (i > 0);
for (i = 0; i < ramsize ; i += 4) {
#ifndef ALL_PAGES_ALWAYS_MAPPED
if (i % size == 0)
openwin(card, i / size);
if (readl(rambase + i % size) != (i ^ 0x12345678))
break;
#else
if (readl(rambase + i) != (i ^ 0x12345678))
break;
#endif
}
return i;
......@@ -850,7 +707,6 @@ static u32 __devinit sca_detect_ram(card_t *card, u8 __iomem *rambase, u32 ramsi
#endif /* NEED_DETECT_RAM */
static void __devinit sca_init(card_t *card, int wait_states)
{
sca_out(wait_states, WCRL, card); /* Wait Control */
......
drivers/net/wan/hd64572.c 0 → 100644
浏览文件 @ c46920da
/*
* Hitachi (now Renesas) SCA-II HD64572 driver for Linux
*
* Copyright (C) 1998-2008 Krzysztof Halasa <khc@pm.waw.pl>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*
* Source of information: HD64572 SCA-II User's Manual
*
* We use the following SCA memory map:
*
* Packet buffer descriptor rings - starting from card->rambase:
* rx_ring_buffers * sizeof(pkt_desc) = logical channel #0 RX ring
* tx_ring_buffers * sizeof(pkt_desc) = logical channel #0 TX ring
* rx_ring_buffers * sizeof(pkt_desc) = logical channel #1 RX ring (if used)
* tx_ring_buffers * sizeof(pkt_desc) = logical channel #1 TX ring (if used)
*
* Packet data buffers - starting from card->rambase + buff_offset:
* rx_ring_buffers * HDLC_MAX_MRU = logical channel #0 RX buffers
* tx_ring_buffers * HDLC_MAX_MRU = logical channel #0 TX buffers
* rx_ring_buffers * HDLC_MAX_MRU = logical channel #0 RX buffers (if used)
* tx_ring_buffers * HDLC_MAX_MRU = logical channel #0 TX buffers (if used)
*/
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/fcntl.h>
#include <linux/hdlc.h>
#include <linux/in.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include "hd64572.h"
#define NAPI_WEIGHT 16
#define get_msci(port) (port->chan ? MSCI1_OFFSET : MSCI0_OFFSET)
#define get_dmac_rx(port) (port->chan ? DMAC1RX_OFFSET : DMAC0RX_OFFSET)
#define get_dmac_tx(port) (port->chan ? DMAC1TX_OFFSET : DMAC0TX_OFFSET)
#define sca_in(reg, card) readb(card->scabase + (reg))
#define sca_out(value, reg, card) writeb(value, card->scabase + (reg))
#define sca_inw(reg, card) readw(card->scabase + (reg))
#define sca_outw(value, reg, card) writew(value, card->scabase + (reg))
#define sca_inl(reg, card) readl(card->scabase + (reg))
#define sca_outl(value, reg, card) writel(value, card->scabase + (reg))
static int sca_poll(struct napi_struct *napi, int budget);
static inline port_t* dev_to_port(struct net_device *dev)
{
return dev_to_hdlc(dev)->priv;
}
static inline void enable_intr(port_t *port)
{
/* enable DMIB and MSCI RXINTA interrupts */
sca_outl(sca_inl(IER0, port->card) |
(port->chan ? 0x08002200 : 0x00080022), IER0, port->card);
}
static inline void disable_intr(port_t *port)
{
sca_outl(sca_inl(IER0, port->card) &
(port->chan ? 0x00FF00FF : 0xFF00FF00), IER0, port->card);
}
static inline u16 desc_abs_number(port_t *port, u16 desc, int transmit)
{
u16 rx_buffs = port->card->rx_ring_buffers;
u16 tx_buffs = port->card->tx_ring_buffers;
desc %= (transmit ? tx_buffs : rx_buffs); // called with "X + 1" etc.
return port->chan * (rx_buffs + tx_buffs) + transmit * rx_buffs + desc;
}
static inline u16 desc_offset(port_t *port, u16 desc, int transmit)
{
/* Descriptor offset always fits in 16 bits */
return desc_abs_number(port, desc, transmit) * sizeof(pkt_desc);
}
static inline pkt_desc __iomem *desc_address(port_t *port, u16 desc,
int transmit)
{
return (pkt_desc __iomem *)(port->card->rambase +
desc_offset(port, desc, transmit));
}
static inline u32 buffer_offset(port_t *port, u16 desc, int transmit)
{
return port->card->buff_offset +
desc_abs_number(port, desc, transmit) * (u32)HDLC_MAX_MRU;
}
static inline void sca_set_carrier(port_t *port)
{
if (!(sca_in(get_msci(port) + ST3, port->card) & ST3_DCD)) {
#ifdef DEBUG_LINK
printk(KERN_DEBUG "%s: sca_set_carrier on\n",
port->netdev.name);
#endif
netif_carrier_on(port->netdev);
} else {
#ifdef DEBUG_LINK
printk(KERN_DEBUG "%s: sca_set_carrier off\n",
port->netdev.name);
#endif
netif_carrier_off(port->netdev);
}
}
static void sca_init_port(port_t *port)
{
card_t *card = port->card;
u16 dmac_rx = get_dmac_rx(port), dmac_tx = get_dmac_tx(port);
int transmit, i;
port->rxin = 0;
port->txin = 0;
port->txlast = 0;
for (transmit = 0; transmit < 2; transmit++) {
u16 buffs = transmit ? card->tx_ring_buffers
: card->rx_ring_buffers;
for (i = 0; i < buffs; i++) {
pkt_desc __iomem *desc = desc_address(port, i, transmit);
u16 chain_off = desc_offset(port, i + 1, transmit);
u32 buff_off = buffer_offset(port, i, transmit);
writel(chain_off, &desc->cp);
writel(buff_off, &desc->bp);
writew(0, &desc->len);
writeb(0, &desc->stat);
}
}
/* DMA disable - to halt state */
sca_out(0, DSR_RX(port->chan), card);
sca_out(0, DSR_TX(port->chan), card);
/* software ABORT - to initial state */
sca_out(DCR_ABORT, DCR_RX(port->chan), card);
sca_out(DCR_ABORT, DCR_TX(port->chan), card);
/* current desc addr */
sca_outl(desc_offset(port, 0, 0), dmac_rx + CDAL, card);
sca_outl(desc_offset(port, card->tx_ring_buffers - 1, 0),
dmac_rx + EDAL, card);
sca_outl(desc_offset(port, 0, 1), dmac_tx + CDAL, card);
sca_outl(desc_offset(port, 0, 1), dmac_tx + EDAL, card);
/* clear frame end interrupt counter */
sca_out(DCR_CLEAR_EOF, DCR_RX(port->chan), card);
sca_out(DCR_CLEAR_EOF, DCR_TX(port->chan), card);
/* Receive */
sca_outw(HDLC_MAX_MRU, dmac_rx + BFLL, card); /* set buffer length */
sca_out(0x14, DMR_RX(port->chan), card); /* Chain mode, Multi-frame */
sca_out(DIR_EOME, DIR_RX(port->chan), card); /* enable interrupts */
sca_out(DSR_DE, DSR_RX(port->chan), card); /* DMA enable */
/* Transmit */
sca_out(0x14, DMR_TX(port->chan), card); /* Chain mode, Multi-frame */
sca_out(DIR_EOME, DIR_TX(port->chan), card); /* enable interrupts */
sca_set_carrier(port);
netif_napi_add(port->netdev, &port->napi, sca_poll, NAPI_WEIGHT);
}
/* MSCI interrupt service */
static inline void sca_msci_intr(port_t *port)
{
u16 msci = get_msci(port);
card_t* card = port->card;
if (sca_in(msci + ST1, card) & ST1_CDCD) {
/* Reset MSCI CDCD status bit */
sca_out(ST1_CDCD, msci + ST1, card);
sca_set_carrier(port);
}
}
static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc,
u16 rxin)
{
struct net_device *dev = port->netdev;
struct sk_buff *skb;
u16 len;
u32 buff;
len = readw(&desc->len);
skb = dev_alloc_skb(len);
if (!skb) {
dev->stats.rx_dropped++;
return;
}
buff = buffer_offset(port, rxin, 0);
memcpy_fromio(skb->data, card->rambase + buff, len);
skb_put(skb, len);
#ifdef DEBUG_PKT
printk(KERN_DEBUG "%s RX(%i):", dev->name, skb->len);
debug_frame(skb);
#endif
dev->stats.rx_packets++;
dev->stats.rx_bytes += skb->len;
skb->protocol = hdlc_type_trans(skb, dev);
netif_receive_skb(skb);
}
/* Receive DMA service */
static inline int sca_rx_done(port_t *port, int budget)
{
struct net_device *dev = port->netdev;
u16 dmac = get_dmac_rx(port);
card_t *card = port->card;
u8 stat = sca_in(DSR_RX(port->chan), card); /* read DMA Status */
int received = 0;
/* Reset DSR status bits */
sca_out((stat & (DSR_EOT | DSR_EOM | DSR_BOF | DSR_COF)) | DSR_DWE,
DSR_RX(port->chan), card);
if (stat & DSR_BOF)
/* Dropped one or more frames */
dev->stats.rx_over_errors++;
while (received < budget) {
u32 desc_off = desc_offset(port, port->rxin, 0);
pkt_desc __iomem *desc;
u32 cda = sca_inl(dmac + CDAL, card);
if ((cda >= desc_off) && (cda < desc_off + sizeof(pkt_desc)))
break; /* No frame received */
desc = desc_address(port, port->rxin, 0);
stat = readb(&desc->stat);
if (!(stat & ST_RX_EOM))
port->rxpart = 1; /* partial frame received */
else if ((stat & ST_ERROR_MASK) || port->rxpart) {
dev->stats.rx_errors++;
if (stat & ST_RX_OVERRUN)
dev->stats.rx_fifo_errors++;
else if ((stat & (ST_RX_SHORT | ST_RX_ABORT |
ST_RX_RESBIT)) || port->rxpart)
dev->stats.rx_frame_errors++;
else if (stat & ST_RX_CRC)
dev->stats.rx_crc_errors++;
if (stat & ST_RX_EOM)
port->rxpart = 0; /* received last fragment */
} else {
sca_rx(card, port, desc, port->rxin);
received++;
}
/* Set new error descriptor address */
sca_outl(desc_off, dmac + EDAL, card);
port->rxin = (port->rxin + 1) % card->rx_ring_buffers;
}
/* make sure RX DMA is enabled */
sca_out(DSR_DE, DSR_RX(port->chan), card);
return received;
}
/* Transmit DMA service */
static inline void sca_tx_done(port_t *port)
{
struct net_device *dev = port->netdev;
card_t* card = port->card;
u8 stat;
spin_lock(&port->lock);
stat = sca_in(DSR_TX(port->chan), card); /* read DMA Status */
/* Reset DSR status bits */
sca_out((stat & (DSR_EOT | DSR_EOM | DSR_BOF | DSR_COF)) | DSR_DWE,
DSR_TX(port->chan), card);
while (1) {
pkt_desc __iomem *desc = desc_address(port, port->txlast, 1);
u8 stat = readb(&desc->stat);
if (!(stat & ST_TX_OWNRSHP))
break; /* not yet transmitted */
if (stat & ST_TX_UNDRRUN) {
dev->stats.tx_errors++;
dev->stats.tx_fifo_errors++;
} else {
dev->stats.tx_packets++;
dev->stats.tx_bytes += readw(&desc->len);
}
writeb(0, &desc->stat); /* Free descriptor */
port->txlast = (port->txlast + 1) % card->tx_ring_buffers;
}
netif_wake_queue(dev);
spin_unlock(&port->lock);
}
static int sca_poll(struct napi_struct *napi, int budget)
{
port_t *port = container_of(napi, port_t, napi);
u32 isr0 = sca_inl(ISR0, port->card);
int received = 0;
if (isr0 & (port->chan ? 0x08000000 : 0x00080000))
sca_msci_intr(port);
if (isr0 & (port->chan ? 0x00002000 : 0x00000020))
sca_tx_done(port);
if (isr0 & (port->chan ? 0x00000200 : 0x00000002))
received = sca_rx_done(port, budget);
if (received < budget) {
netif_rx_complete(port->netdev, napi);
enable_intr(port);
}
return received;
}
static irqreturn_t sca_intr(int irq, void *dev_id)
{
card_t *card = dev_id;
u32 isr0 = sca_inl(ISR0, card);
int i, handled = 0;
for (i = 0; i < 2; i++) {
port_t *port = get_port(card, i);
if (port && (isr0 & (i ? 0x08002200 : 0x00080022))) {
handled = 1;
disable_intr(port);
netif_rx_schedule(port->netdev, &port->napi);
}
}
return IRQ_RETVAL(handled);
}
static void sca_set_port(port_t *port)
{
card_t* card = port->card;
u16 msci = get_msci(port);
u8 md2 = sca_in(msci + MD2, card);
unsigned int tmc, br = 10, brv = 1024;
if (port->settings.clock_rate > 0) {
/* Try lower br for better accuracy*/
do {
br--;
brv >>= 1; /* brv = 2^9 = 512 max in specs */
/* Baud Rate = CLOCK_BASE / TMC / 2^BR */
tmc = CLOCK_BASE / brv / port->settings.clock_rate;
}while (br > 1 && tmc <= 128);
if (tmc < 1) {
tmc = 1;
br = 0; /* For baud=CLOCK_BASE we use tmc=1 br=0 */
brv = 1;
} else if (tmc > 255)
tmc = 256; /* tmc=0 means 256 - low baud rates */
port->settings.clock_rate = CLOCK_BASE / brv / tmc;
} else {
br = 9; /* Minimum clock rate */
tmc = 256; /* 8bit = 0 */
port->settings.clock_rate = CLOCK_BASE / (256 * 512);
}
port->rxs = (port->rxs & ~CLK_BRG_MASK) | br;
port->txs = (port->txs & ~CLK_BRG_MASK) | br;
port->tmc = tmc;
/* baud divisor - time constant*/
sca_out(port->tmc, msci + TMCR, card);
sca_out(port->tmc, msci + TMCT, card);
/* Set BRG bits */
sca_out(port->rxs, msci + RXS, card);
sca_out(port->txs, msci + TXS, card);
if (port->settings.loopback)
md2 |= MD2_LOOPBACK;
else
md2 &= ~MD2_LOOPBACK;
sca_out(md2, msci + MD2, card);
}
static void sca_open(struct net_device *dev)
{
port_t *port = dev_to_port(dev);
card_t* card = port->card;
u16 msci = get_msci(port);
u8 md0, md2;
switch(port->encoding) {
case ENCODING_NRZ: md2 = MD2_NRZ; break;
case ENCODING_NRZI: md2 = MD2_NRZI; break;
case ENCODING_FM_MARK: md2 = MD2_FM_MARK; break;
case ENCODING_FM_SPACE: md2 = MD2_FM_SPACE; break;
default: md2 = MD2_MANCHESTER;
}
if (port->settings.loopback)
md2 |= MD2_LOOPBACK;
switch(port->parity) {
case PARITY_CRC16_PR0: md0 = MD0_HDLC | MD0_CRC_16_0; break;
case PARITY_CRC16_PR1: md0 = MD0_HDLC | MD0_CRC_16; break;
case PARITY_CRC32_PR1_CCITT: md0 = MD0_HDLC | MD0_CRC_ITU32; break;
case PARITY_CRC16_PR1_CCITT: md0 = MD0_HDLC | MD0_CRC_ITU; break;
default: md0 = MD0_HDLC | MD0_CRC_NONE;
}
sca_out(CMD_RESET, msci + CMD, card);
sca_out(md0, msci + MD0, card);
sca_out(0x00, msci + MD1, card); /* no address field check */
sca_out(md2, msci + MD2, card);
sca_out(0x7E, msci + IDL, card); /* flag character 0x7E */
/* Skip the rest of underrun frame */
sca_out(CTL_IDLE | CTL_URCT | CTL_URSKP, msci + CTL, card);
sca_out(0x0F, msci + RNR, card); /* +1=RX DMA activation condition */
sca_out(0x3C, msci + TFS, card); /* +1 = TX start */
sca_out(0x38, msci + TCR, card); /* =Critical TX DMA activ condition */
sca_out(0x38, msci + TNR0, card); /* =TX DMA activation condition */
sca_out(0x3F, msci + TNR1, card); /* +1=TX DMA deactivation condition*/
/* We're using the following interrupts:
- RXINTA (DCD changes only)
- DMIB (EOM - single frame transfer complete)
*/
sca_outl(IE0_RXINTA | IE0_CDCD, msci + IE0, card);
sca_out(port->tmc, msci + TMCR, card);
sca_out(port->tmc, msci + TMCT, card);
sca_out(port->rxs, msci + RXS, card);
sca_out(port->txs, msci + TXS, card);
sca_out(CMD_TX_ENABLE, msci + CMD, card);
sca_out(CMD_RX_ENABLE, msci + CMD, card);
sca_set_carrier(port);
enable_intr(port);
napi_enable(&port->napi);
netif_start_queue(dev);
}
static void sca_close(struct net_device *dev)
{
port_t *port = dev_to_port(dev);
/* reset channel */
sca_out(CMD_RESET, get_msci(port) + CMD, port->card);
disable_intr(port);
napi_disable(&port->napi);
netif_stop_queue(dev);
}
static int sca_attach(struct net_device *dev, unsigned short encoding,
unsigned short parity)
{
if (encoding != ENCODING_NRZ &&
encoding != ENCODING_NRZI &&
encoding != ENCODING_FM_MARK &&
encoding != ENCODING_FM_SPACE &&
encoding != ENCODING_MANCHESTER)
return -EINVAL;
if (parity != PARITY_NONE &&
parity != PARITY_CRC16_PR0 &&
parity != PARITY_CRC16_PR1 &&
parity != PARITY_CRC32_PR1_CCITT &&
parity != PARITY_CRC16_PR1_CCITT)
return -EINVAL;
dev_to_port(dev)->encoding = encoding;
dev_to_port(dev)->parity = parity;
return 0;
}
#ifdef DEBUG_RINGS
static void sca_dump_rings(struct net_device *dev)
{
port_t *port = dev_to_port(dev);
card_t *card = port->card;
u16 cnt;
printk(KERN_DEBUG "RX ring: CDA=%u EDA=%u DSR=%02X in=%u %sactive",
sca_inl(get_dmac_rx(port) + CDAL, card),
sca_inl(get_dmac_rx(port) + EDAL, card),
sca_in(DSR_RX(port->chan), card), port->rxin,
sca_in(DSR_RX(port->chan), card) & DSR_DE ? "" : "in");
for (cnt = 0; cnt < port->card->rx_ring_buffers; cnt++)
printk(" %02X", readb(&(desc_address(port, cnt, 0)->stat)));
printk("\n" KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u "
"last=%u %sactive",
sca_inl(get_dmac_tx(port) + CDAL, card),
sca_inl(get_dmac_tx(port) + EDAL, card),
sca_in(DSR_TX(port->chan), card), port->txin, port->txlast,
sca_in(DSR_TX(port->chan), card) & DSR_DE ? "" : "in");
for (cnt = 0; cnt < port->card->tx_ring_buffers; cnt++)
printk(" %02X", readb(&(desc_address(port, cnt, 1)->stat)));
printk("\n");
printk(KERN_DEBUG "MSCI: MD: %02x %02x %02x,"
" ST: %02x %02x %02x %02x %02x, FST: %02x CST: %02x %02x\n",
sca_in(get_msci(port) + MD0, card),
sca_in(get_msci(port) + MD1, card),
sca_in(get_msci(port) + MD2, card),
sca_in(get_msci(port) + ST0, card),
sca_in(get_msci(port) + ST1, card),
sca_in(get_msci(port) + ST2, card),
sca_in(get_msci(port) + ST3, card),
sca_in(get_msci(port) + ST4, card),
sca_in(get_msci(port) + FST, card),
sca_in(get_msci(port) + CST0, card),
sca_in(get_msci(port) + CST1, card));
printk(KERN_DEBUG "ILAR: %02x ISR: %08x %08x\n", sca_in(ILAR, card),
sca_inl(ISR0, card), sca_inl(ISR1, card));
}
#endif /* DEBUG_RINGS */
static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
{
port_t *port = dev_to_port(dev);
card_t *card = port->card;
pkt_desc __iomem *desc;
u32 buff, len;
spin_lock_irq(&port->lock);
desc = desc_address(port, port->txin + 1, 1);
BUG_ON(readb(&desc->stat)); /* previous xmit should stop queue */
#ifdef DEBUG_PKT
printk(KERN_DEBUG "%s TX(%i):", dev->name, skb->len);
debug_frame(skb);
#endif
desc = desc_address(port, port->txin, 1);
buff = buffer_offset(port, port->txin, 1);
len = skb->len;
memcpy_toio(card->rambase + buff, skb->data, len);
writew(len, &desc->len);
writeb(ST_TX_EOM, &desc->stat);
dev->trans_start = jiffies;
port->txin = (port->txin + 1) % card->tx_ring_buffers;
sca_outl(desc_offset(port, port->txin, 1),
get_dmac_tx(port) + EDAL, card);
sca_out(DSR_DE, DSR_TX(port->chan), card); /* Enable TX DMA */
desc = desc_address(port, port->txin + 1, 1);
if (readb(&desc->stat)) /* allow 1 packet gap */
netif_stop_queue(dev);
spin_unlock_irq(&port->lock);
dev_kfree_skb(skb);
return 0;
}
static u32 __devinit sca_detect_ram(card_t *card, u8 __iomem *rambase,
u32 ramsize)
{
/* Round RAM size to 32 bits, fill from end to start */
u32 i = ramsize &= ~3;
do {
i -= 4;
writel(i ^ 0x12345678, rambase + i);
} while (i > 0);
for (i = 0; i < ramsize ; i += 4) {
if (readl(rambase + i) != (i ^ 0x12345678))
break;
}
return i;
}
static void __devinit sca_init(card_t *card, int wait_states)
{
sca_out(wait_states, WCRL, card); /* Wait Control */
sca_out(wait_states, WCRM, card);
sca_out(wait_states, WCRH, card);
sca_out(0, DMER, card); /* DMA Master disable */
sca_out(0x03, PCR, card); /* DMA priority */
sca_out(0, DSR_RX(0), card); /* DMA disable - to halt state */
sca_out(0, DSR_TX(0), card);
sca_out(0, DSR_RX(1), card);
sca_out(0, DSR_TX(1), card);
sca_out(DMER_DME, DMER, card); /* DMA Master enable */
}
drivers/net/wan/hdlc_ppp.c
浏览文件 @ c46920da
此差异已折叠。
drivers/net/wan/n2.c
浏览文件 @ c46920da
......@@ -53,7 +53,7 @@ static const char* devname = "RISCom/N2";
#define NEED_SCA_MSCI_INTR
#define MAX_TX_BUFFERS 10
static char *hw = NULL; /* pointer to hw=xxx command line string */
static char *hw; /* pointer to hw=xxx command line string */
/* RISCom/N2 Board Registers */
......@@ -145,7 +145,6 @@ static card_t **new_card = &first_card;
&(card)->ports[port] : NULL)
static __inline__ u8 sca_get_page(card_t *card)
{
return inb(card->io + N2_PSR) & PSR_PAGEBITS;
......@@ -159,9 +158,7 @@ static __inline__ void openwin(card_t *card, u8 page)
}
#include "hd6457x.c"
#include "hd64570.c"
static void n2_set_iface(port_t *port)
......@@ -478,7 +475,7 @@ static int __init n2_run(unsigned long io, unsigned long irq,
n2_destroy_card(card);
return -ENOBUFS;
}
sca_init_sync_port(port); /* Set up SCA memory */
sca_init_port(port); /* Set up SCA memory */
printk(KERN_INFO "%s: RISCom/N2 node %d\n",
dev->name, port->phy_node);
......
drivers/net/wan/pc300too.c
浏览文件 @ c46920da
/*
* Cyclades PC300 synchronous serial card driver for Linux
*
* Copyright (C) 2000-2007 Krzysztof Halasa <khc@pm.waw.pl>
* Copyright (C) 2000-2008 Krzysztof Halasa <khc@pm.waw.pl>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
......@@ -11,7 +11,7 @@
*
* Sources of information:
* Hitachi HD64572 SCA-II User's Manual
* Cyclades PC300 Linux driver
* Original Cyclades PC300 Linux driver
*
* This driver currently supports only PC300/RSV (V.24/V.35) and
* PC300/X21 cards.
......@@ -37,17 +37,11 @@
#include "hd64572.h"
static const char* version = "Cyclades PC300 driver version: 1.17";
static const char* devname = "PC300";
#undef DEBUG_PKT
#define DEBUG_RINGS
#define PC300_PLX_SIZE 0x80 /* PLX control window size (128 B) */
#define PC300_SCA_SIZE 0x400 /* SCA window size (1 KB) */
#define ALL_PAGES_ALWAYS_MAPPED
#define NEED_DETECT_RAM
#define NEED_SCA_MSCI_INTR
#define MAX_TX_BUFFERS 10
static int pci_clock_freq = 33000000;
......@@ -81,7 +75,8 @@ typedef struct {
typedef struct port_s {
struct net_device *dev;
struct napi_struct napi;
struct net_device *netdev;
struct card_s *card;
spinlock_t lock; /* TX lock */
sync_serial_settings settings;
......@@ -93,7 +88,7 @@ typedef struct port_s {
u16 txin; /* tx ring buffer 'in' and 'last' pointers */
u16 txlast;
u8 rxs, txs, tmc; /* SCA registers */
u8 phy_node; /* physical port # - 0 or 1 */
u8 chan; /* physical port # - 0 or 1 */
}port_t;
......@@ -114,21 +109,10 @@ typedef struct card_s {
}card_t;
#define sca_in(reg, card) readb(card->scabase + (reg))
#define sca_out(value, reg, card) writeb(value, card->scabase + (reg))
#define sca_inw(reg, card) readw(card->scabase + (reg))
#define sca_outw(value, reg, card) writew(value, card->scabase + (reg))
#define sca_inl(reg, card) readl(card->scabase + (reg))
#define sca_outl(value, reg, card) writel(value, card->scabase + (reg))
#define port_to_card(port) (port->card)
#define log_node(port) (port->phy_node)
#define phy_node(port) (port->phy_node)
#define winbase(card) (card->rambase)
#define get_port(card, port) ((port) < (card)->n_ports ? \
(&(card)->ports[port]) : (NULL))
#include "hd6457x.c"
#include "hd64572.c"
static void pc300_set_iface(port_t *port)
......@@ -139,8 +123,8 @@ static void pc300_set_iface(port_t *port)
u8 rxs = port->rxs & CLK_BRG_MASK;
u8 txs = port->txs & CLK_BRG_MASK;
sca_out(EXS_TES1, (phy_node(port) ? MSCI1_OFFSET : MSCI0_OFFSET) + EXS,
port_to_card(port));
sca_out(EXS_TES1, (port->chan ? MSCI1_OFFSET : MSCI0_OFFSET) + EXS,
port->card);
switch(port->settings.clock_type) {
case CLOCK_INT:
rxs |= CLK_BRG; /* BRG output */
......@@ -172,10 +156,10 @@ static void pc300_set_iface(port_t *port)
if (port->card->type == PC300_RSV) {
if (port->iface == IF_IFACE_V35)
writel(card->init_ctrl_value |
PC300_CHMEDIA_MASK(port->phy_node), init_ctrl);
PC300_CHMEDIA_MASK(port->chan), init_ctrl);
else
writel(card->init_ctrl_value &
~PC300_CHMEDIA_MASK(port->phy_node), init_ctrl);
~PC300_CHMEDIA_MASK(port->chan), init_ctrl);
}
}
......@@ -280,10 +264,8 @@ static void pc300_pci_remove_one(struct pci_dev *pdev)
card_t *card = pci_get_drvdata(pdev);
for (i = 0; i < 2; i++)
if (card->ports[i].card) {
struct net_device *dev = port_to_dev(&card->ports[i]);
unregister_hdlc_device(dev);
}
if (card->ports[i].card)
unregister_hdlc_device(card->ports[i].netdev);
if (card->irq)
free_irq(card->irq, card);
......@@ -298,10 +280,10 @@ static void pc300_pci_remove_one(struct pci_dev *pdev)
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
if (card->ports[0].dev)
free_netdev(card->ports[0].dev);
if (card->ports[1].dev)
free_netdev(card->ports[1].dev);
if (card->ports[0].netdev)
free_netdev(card->ports[0].netdev);
if (card->ports[1].netdev)
free_netdev(card->ports[1].netdev);
kfree(card);
}
......@@ -318,12 +300,6 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
u32 scaphys; /* SCA memory base */
u32 plxphys; /* PLX registers memory base */
#ifndef MODULE
static int printed_version;
if (!printed_version++)
printk(KERN_INFO "%s\n", version);
#endif
i = pci_enable_device(pdev);
if (i)
return i;
......@@ -343,27 +319,6 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
}
pci_set_drvdata(pdev, card);
if (pdev->device == PCI_DEVICE_ID_PC300_TE_1 ||
pdev->device == PCI_DEVICE_ID_PC300_TE_2)
card->type = PC300_TE; /* not fully supported */
else if (card->init_ctrl_value & PC300_CTYPE_MASK)
card->type = PC300_X21;
else
card->type = PC300_RSV;
if (pdev->device == PCI_DEVICE_ID_PC300_RX_1 ||
pdev->device == PCI_DEVICE_ID_PC300_TE_1)
card->n_ports = 1;
else
card->n_ports = 2;
for (i = 0; i < card->n_ports; i++)
if (!(card->ports[i].dev = alloc_hdlcdev(&card->ports[i]))) {
printk(KERN_ERR "pc300: unable to allocate memory\n");
pc300_pci_remove_one(pdev);
return -ENOMEM;
}
if (pci_resource_len(pdev, 0) != PC300_PLX_SIZE ||
pci_resource_len(pdev, 2) != PC300_SCA_SIZE ||
pci_resource_len(pdev, 3) < 16384) {
......@@ -372,13 +327,13 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
return -EFAULT;
}
plxphys = pci_resource_start(pdev,0) & PCI_BASE_ADDRESS_MEM_MASK;
plxphys = pci_resource_start(pdev, 0) & PCI_BASE_ADDRESS_MEM_MASK;
card->plxbase = ioremap(plxphys, PC300_PLX_SIZE);
scaphys = pci_resource_start(pdev,2) & PCI_BASE_ADDRESS_MEM_MASK;
scaphys = pci_resource_start(pdev, 2) & PCI_BASE_ADDRESS_MEM_MASK;
card->scabase = ioremap(scaphys, PC300_SCA_SIZE);
ramphys = pci_resource_start(pdev,3) & PCI_BASE_ADDRESS_MEM_MASK;
ramphys = pci_resource_start(pdev, 3) & PCI_BASE_ADDRESS_MEM_MASK;
card->rambase = pci_ioremap_bar(pdev, 3);
if (card->plxbase == NULL ||
......@@ -393,6 +348,27 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
card->init_ctrl_value = readl(&((plx9050 __iomem *)card->scabase)->init_ctrl);
pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, plxphys);
if (pdev->device == PCI_DEVICE_ID_PC300_TE_1 ||
pdev->device == PCI_DEVICE_ID_PC300_TE_2)
card->type = PC300_TE; /* not fully supported */
else if (card->init_ctrl_value & PC300_CTYPE_MASK)
card->type = PC300_X21;
else
card->type = PC300_RSV;
if (pdev->device == PCI_DEVICE_ID_PC300_RX_1 ||
pdev->device == PCI_DEVICE_ID_PC300_TE_1)
card->n_ports = 1;
else
card->n_ports = 2;
for (i = 0; i < card->n_ports; i++)
if (!(card->ports[i].netdev = alloc_hdlcdev(&card->ports[i]))) {
printk(KERN_ERR "pc300: unable to allocate memory\n");
pc300_pci_remove_one(pdev);
return -ENOMEM;
}
/* Reset PLX */
p = &card->plxbase->init_ctrl;
writel(card->init_ctrl_value | 0x40000000, p);
......@@ -446,7 +422,7 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
writew(0x0041, &card->plxbase->intr_ctrl_stat);
/* Allocate IRQ */
if (request_irq(pdev->irq, sca_intr, IRQF_SHARED, devname, card)) {
if (request_irq(pdev->irq, sca_intr, IRQF_SHARED, "pc300", card)) {
printk(KERN_WARNING "pc300: could not allocate IRQ%d.\n",
pdev->irq);
pc300_pci_remove_one(pdev);
......@@ -463,9 +439,9 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
for (i = 0; i < card->n_ports; i++) {
port_t *port = &card->ports[i];
struct net_device *dev = port_to_dev(port);
struct net_device *dev = port->netdev;
hdlc_device *hdlc = dev_to_hdlc(dev);
port->phy_node = i;
port->chan = i;
spin_lock_init(&port->lock);
dev->irq = card->irq;
......@@ -484,6 +460,7 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
else
port->iface = IF_IFACE_V35;
sca_init_port(port);
if (register_hdlc_device(dev)) {
printk(KERN_ERR "pc300: unable to register hdlc "
"device\n");
......@@ -491,10 +468,9 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
pc300_pci_remove_one(pdev);
return -ENOBUFS;
}
sca_init_sync_port(port); /* Set up SCA memory */
printk(KERN_INFO "%s: PC300 node %d\n",
dev->name, port->phy_node);
printk(KERN_INFO "%s: PC300 channel %d\n",
dev->name, port->chan);
}
return 0;
}
......@@ -524,9 +500,6 @@ static struct pci_driver pc300_pci_driver = {
static int __init pc300_init_module(void)
{
#ifdef MODULE
printk(KERN_INFO "%s\n", version);
#endif
if (pci_clock_freq < 1000000 || pci_clock_freq > 80000000) {
printk(KERN_ERR "pc300: Invalid PCI clock frequency\n");
return -EINVAL;
......
drivers/net/wan/pci200syn.c
浏览文件 @ c46920da
/*
* Goramo PCI200SYN synchronous serial card driver for Linux
*
* Copyright (C) 2002-2003 Krzysztof Halasa <khc@pm.waw.pl>
* Copyright (C) 2002-2008 Krzysztof Halasa <khc@pm.waw.pl>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
......@@ -33,17 +33,11 @@
#include "hd64572.h"
static const char* version = "Goramo PCI200SYN driver version: 1.16";
static const char* devname = "PCI200SYN";
#undef DEBUG_PKT
#define DEBUG_RINGS
#define PCI200SYN_PLX_SIZE 0x80 /* PLX control window size (128b) */
#define PCI200SYN_SCA_SIZE 0x400 /* SCA window size (1Kb) */
#define ALL_PAGES_ALWAYS_MAPPED
#define NEED_DETECT_RAM
#define NEED_SCA_MSCI_INTR
#define MAX_TX_BUFFERS 10
static int pci_clock_freq = 33000000;
......@@ -68,7 +62,8 @@ typedef struct {
typedef struct port_s {
struct net_device *dev;
struct napi_struct napi;
struct net_device *netdev;
struct card_s *card;
spinlock_t lock; /* TX lock */
sync_serial_settings settings;
......@@ -79,7 +74,7 @@ typedef struct port_s {
u16 txin; /* tx ring buffer 'in' and 'last' pointers */
u16 txlast;
u8 rxs, txs, tmc; /* SCA registers */
u8 phy_node; /* physical port # - 0 or 1 */
u8 chan; /* physical port # - 0 or 1 */
}port_t;
......@@ -97,17 +92,6 @@ typedef struct card_s {
}card_t;
#define sca_in(reg, card) readb(card->scabase + (reg))
#define sca_out(value, reg, card) writeb(value, card->scabase + (reg))
#define sca_inw(reg, card) readw(card->scabase + (reg))
#define sca_outw(value, reg, card) writew(value, card->scabase + (reg))
#define sca_inl(reg, card) readl(card->scabase + (reg))
#define sca_outl(value, reg, card) writel(value, card->scabase + (reg))
#define port_to_card(port) (port->card)
#define log_node(port) (port->phy_node)
#define phy_node(port) (port->phy_node)
#define winbase(card) (card->rambase)
#define get_port(card, port) (&card->ports[port])
#define sca_flush(card) (sca_in(IER0, card));
......@@ -127,7 +111,7 @@ static inline void new_memcpy_toio(char __iomem *dest, char *src, int length)
#undef memcpy_toio
#define memcpy_toio new_memcpy_toio
#include "hd6457x.c"
#include "hd64572.c"
static void pci200_set_iface(port_t *port)
......@@ -137,8 +121,8 @@ static void pci200_set_iface(port_t *port)
u8 rxs = port->rxs & CLK_BRG_MASK;
u8 txs = port->txs & CLK_BRG_MASK;
sca_out(EXS_TES1, (phy_node(port) ? MSCI1_OFFSET : MSCI0_OFFSET) + EXS,
port_to_card(port));
sca_out(EXS_TES1, (port->chan ? MSCI1_OFFSET : MSCI0_OFFSET) + EXS,
port->card);
switch(port->settings.clock_type) {
case CLOCK_INT:
rxs |= CLK_BRG; /* BRG output */
......@@ -180,7 +164,7 @@ static int pci200_open(struct net_device *dev)
sca_open(dev);
pci200_set_iface(port);
sca_flush(port_to_card(port));
sca_flush(port->card);
return 0;
}
......@@ -189,7 +173,7 @@ static int pci200_open(struct net_device *dev)
static int pci200_close(struct net_device *dev)
{
sca_close(dev);
sca_flush(port_to_card(dev_to_port(dev)));
sca_flush(dev_to_port(dev)->card);
hdlc_close(dev);
return 0;
}
......@@ -242,7 +226,7 @@ static int pci200_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
memcpy(&port->settings, &new_line, size); /* Update settings */
pci200_set_iface(port);
sca_flush(port_to_card(port));
sca_flush(port->card);
return 0;
default:
......@@ -258,10 +242,8 @@ static void pci200_pci_remove_one(struct pci_dev *pdev)
card_t *card = pci_get_drvdata(pdev);
for (i = 0; i < 2; i++)
if (card->ports[i].card) {
struct net_device *dev = port_to_dev(&card->ports[i]);
unregister_hdlc_device(dev);
}
if (card->ports[i].card)
unregister_hdlc_device(card->ports[i].netdev);
if (card->irq)
free_irq(card->irq, card);
......@@ -276,10 +258,10 @@ static void pci200_pci_remove_one(struct pci_dev *pdev)
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
if (card->ports[0].dev)
free_netdev(card->ports[0].dev);
if (card->ports[1].dev)
free_netdev(card->ports[1].dev);
if (card->ports[0].netdev)
free_netdev(card->ports[0].netdev);
if (card->ports[1].netdev)
free_netdev(card->ports[1].netdev);
kfree(card);
}
......@@ -296,12 +278,6 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
u32 scaphys; /* SCA memory base */
u32 plxphys; /* PLX registers memory base */
#ifndef MODULE
static int printed_version;
if (!printed_version++)
printk(KERN_INFO "%s\n", version);
#endif
i = pci_enable_device(pdev);
if (i)
return i;
......@@ -320,9 +296,9 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
return -ENOBUFS;
}
pci_set_drvdata(pdev, card);
card->ports[0].dev = alloc_hdlcdev(&card->ports[0]);
card->ports[1].dev = alloc_hdlcdev(&card->ports[1]);
if (!card->ports[0].dev || !card->ports[1].dev) {
card->ports[0].netdev = alloc_hdlcdev(&card->ports[0]);
card->ports[1].netdev = alloc_hdlcdev(&card->ports[1]);
if (!card->ports[0].netdev || !card->ports[1].netdev) {
printk(KERN_ERR "pci200syn: unable to allocate memory\n");
pci200_pci_remove_one(pdev);
return -ENOMEM;
......@@ -398,7 +374,7 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
writew(readw(p) | 0x0040, p);
/* Allocate IRQ */
if (request_irq(pdev->irq, sca_intr, IRQF_SHARED, devname, card)) {
if (request_irq(pdev->irq, sca_intr, IRQF_SHARED, "pci200syn", card)) {
printk(KERN_WARNING "pci200syn: could not allocate IRQ%d.\n",
pdev->irq);
pci200_pci_remove_one(pdev);
......@@ -410,9 +386,9 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
for (i = 0; i < 2; i++) {
port_t *port = &card->ports[i];
struct net_device *dev = port_to_dev(port);
struct net_device *dev = port->netdev;
hdlc_device *hdlc = dev_to_hdlc(dev);
port->phy_node = i;
port->chan = i;
spin_lock_init(&port->lock);
dev->irq = card->irq;
......@@ -426,6 +402,7 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
hdlc->xmit = sca_xmit;
port->settings.clock_type = CLOCK_EXT;
port->card = card;
sca_init_port(port);
if (register_hdlc_device(dev)) {
printk(KERN_ERR "pci200syn: unable to register hdlc "
"device\n");
......@@ -433,10 +410,9 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
pci200_pci_remove_one(pdev);
return -ENOBUFS;
}
sca_init_sync_port(port); /* Set up SCA memory */
printk(KERN_INFO "%s: PCI200SYN node %d\n",
dev->name, port->phy_node);
printk(KERN_INFO "%s: PCI200SYN channel %d\n",
dev->name, port->chan);
}
sca_flush(card);
......@@ -464,9 +440,6 @@ static struct pci_driver pci200_pci_driver = {
static int __init pci200_init_module(void)
{
#ifdef MODULE
printk(KERN_INFO "%s\n", version);
#endif
if (pci_clock_freq < 1000000 || pci_clock_freq > 80000000) {
printk(KERN_ERR "pci200syn: Invalid PCI clock frequency\n");
return -EINVAL;
......
drivers/net/wan/syncppp.c 已删除 100644 → 0
浏览文件 @ f5f4cf08
此差异已折叠。
include/net/syncppp.h 已删除 100644 → 0
浏览文件 @ f5f4cf08
/*
* Defines for synchronous PPP/Cisco link level subroutines.
*
* Copyright (C) 1994 Cronyx Ltd.
* Author: Serge Vakulenko, <vak@zebub.msk.su>
*
* This software is distributed with NO WARRANTIES, not even the implied
* warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Authors grant any other persons or organizations permission to use
* or modify this software as long as this message is kept with the software,
* all derivative works or modified versions.
*
* Version 1.7, Wed Jun 7 22:12:02 MSD 1995
*
*
*
*/
#ifndef _SYNCPPP_H_
#define _SYNCPPP_H_ 1
#ifdef __KERNEL__
struct slcp {
u16 state; /* state machine */
u32 magic; /* local magic number */
u_char echoid; /* id of last keepalive echo request */
u_char confid; /* id of last configuration request */
};
struct sipcp {
u16 state; /* state machine */
u_char confid; /* id of last configuration request */
};
struct sppp
{
struct sppp * pp_next; /* next interface in keepalive list */
u32 pp_flags; /* use Cisco protocol instead of PPP */
u16 pp_alivecnt; /* keepalive packets counter */
u16 pp_loopcnt; /* loopback detection counter */
u32 pp_seq; /* local sequence number */
u32 pp_rseq; /* remote sequence number */
struct slcp lcp; /* LCP params */
struct sipcp ipcp; /* IPCP params */
struct timer_list pp_timer;
struct net_device *pp_if;
char pp_link_state; /* Link status */
spinlock_t lock;
};
struct ppp_device
{
struct net_device *dev; /* Network device pointer */
struct sppp sppp; /* Synchronous PPP */
};
static inline struct sppp *sppp_of(struct net_device *dev)
{
struct ppp_device **ppp = dev->ml_priv;
BUG_ON((*ppp)->dev != dev);
return &(*ppp)->sppp;
}
#define PP_KEEPALIVE 0x01 /* use keepalive protocol */
#define PP_CISCO 0x02 /* use Cisco protocol instead of PPP */
#define PP_TIMO 0x04 /* cp_timeout routine active */
#define PP_DEBUG 0x08
#define PPP_MTU 1500 /* max. transmit unit */
#define LCP_STATE_CLOSED 0 /* LCP state: closed (conf-req sent) */
#define LCP_STATE_ACK_RCVD 1 /* LCP state: conf-ack received */
#define LCP_STATE_ACK_SENT 2 /* LCP state: conf-ack sent */
#define LCP_STATE_OPENED 3 /* LCP state: opened */
#define IPCP_STATE_CLOSED 0 /* IPCP state: closed (conf-req sent) */
#define IPCP_STATE_ACK_RCVD 1 /* IPCP state: conf-ack received */
#define IPCP_STATE_ACK_SENT 2 /* IPCP state: conf-ack sent */
#define IPCP_STATE_OPENED 3 /* IPCP state: opened */
#define SPPP_LINK_DOWN 0 /* link down - no keepalive */
#define SPPP_LINK_UP 1 /* link is up - keepalive ok */
void sppp_attach (struct ppp_device *pd);
void sppp_detach (struct net_device *dev);
int sppp_do_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd);
struct sk_buff *sppp_dequeue (struct net_device *dev);
int sppp_isempty (struct net_device *dev);
void sppp_flush (struct net_device *dev);
int sppp_open (struct net_device *dev);
int sppp_reopen (struct net_device *dev);
int sppp_close (struct net_device *dev);
#endif
#define SPPPIOCCISCO (SIOCDEVPRIVATE)
#define SPPPIOCPPP (SIOCDEVPRIVATE+1)
#define SPPPIOCDEBUG (SIOCDEVPRIVATE+2)
#define SPPPIOCSFLAGS (SIOCDEVPRIVATE+3)
#define SPPPIOCGFLAGS (SIOCDEVPRIVATE+4)
#endif /* _SYNCPPP_H_ */
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