Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261278AbTIMPpp (ORCPT ); Sat, 13 Sep 2003 11:45:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261277AbTIMPpp (ORCPT ); Sat, 13 Sep 2003 11:45:45 -0400 Received: from hq.pm.waw.pl ([195.116.170.10]:40323 "EHLO hq.pm.waw.pl") by vger.kernel.org with ESMTP id S261334AbTIMPo3 (ORCPT ); Sat, 13 Sep 2003 11:44:29 -0400 To: Linus Torvalds Cc: lkml Subject: [PATCH] wanXL serial card driver for 2.6.0-test5 From: Krzysztof Halasa Date: 13 Sep 2003 17:42:34 +0200 Message-ID: MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 67614 Lines: 8 --=-=-= Hi, This is a driver for SBE Inc. wanXL 4-port sync serial card, second version. Please apply to 2.6.0-test tree. Thanks. -- Krzysztof Halasa, B*FH --=-=-= Content-Type: text/x-patch Content-Disposition: attachment; filename=wanxl-2.6.0-test5-0.46.patch --- linux-2.6.orig/drivers/net/wan/Makefile 2003-08-09 06:37:29.000000000 +0200 +++ linux-2.6/drivers/net/wan/Makefile 2003-09-13 16:37:07.000000000 +0200 @@ -66,3 +66,25 @@ endif obj-$(CONFIG_N2) += n2.o obj-$(CONFIG_C101) += c101.o +obj-$(CONFIG_WANXL) += wanxl.o + +ifeq ($(CONFIG_WANXL_BUILD_FIRMWARE),y) +ifeq ($(ARCH),m68k) + AS68K = $(AS) + LD68K = $(LD) +else + AS68K = as68k + LD68K = ld68k +endif + +quiet_cmd_build_wanxlfw = BLD FW $@ + cmd_build_wanxlfw = \ + $(CPP) -Wp,-MD,$(depfile) -Iinclude $(obj)/wanxlfw.S | $(AS68K) -m68360 -o $(obj)/wanxlfw.o; \ + $(LD68K) --oformat binary -Ttext 0x1000 $(obj)/wanxlfw.o -o $(obj)/wanxlfw.bin; \ + hexdump -ve '"\n" 16/1 "0x%02X,"' $(obj)/wanxlfw.bin | sed 's/0x ,//g;1s/^/static u8 firmware[]={/;$$s/,$$/\n};\n/' >$(obj)/wanxlfw.inc; \ + rm -f $(obj)/wanxlfw.bin $(obj)/wanxlfw.o + +$(obj)/wanxlfw.inc: $(obj)/wanxlfw.S + $(call if_changed_dep,build_wanxlfw) +targets += wanxlfw.inc +endif --- linux-2.6.orig/drivers/net/wan/wanxl.h 2003-09-13 17:30:27.000000000 +0200 +++ linux-2.6/drivers/net/wan/wanxl.h 2003-09-13 16:37:07.000000000 +0200 @@ -0,0 +1,152 @@ +/* + * wanXL serial card driver for Linux + * definitions common to host driver and card firmware + * + * Copyright (C) 2003 Krzysztof Halasa + * + * 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. + */ + +#define RESET_WHILE_LOADING 0 + +/* you must rebuild the firmware if any of the following is changed */ +#define DETECT_RAM 0 /* needed for > 4MB RAM, 16 MB maximum */ +#define QUICC_MEMCPY_USES_PLX 1 /* must be used if the host has > 256 MB RAM */ + + +#define STATUS_CABLE_V35 2 +#define STATUS_CABLE_X21 3 +#define STATUS_CABLE_V24 4 +#define STATUS_CABLE_EIA530 5 +#define STATUS_CABLE_INVALID 6 +#define STATUS_CABLE_NONE 7 + +#define STATUS_CABLE_DCE 0x8000 +#define STATUS_CABLE_DSR 0x0010 +#define STATUS_CABLE_DCD 0x0008 +#define STATUS_CABLE_PM_SHIFT 5 + +#define PDM_OFFSET 0x1000 + +#define TX_BUFFERS 10 /* per port */ +#define RX_BUFFERS 30 +#define RX_QUEUE_LENGTH 40 /* card->host queue length - per card */ + +#define PACKET_EMPTY 0x00 +#define PACKET_FULL 0x10 +#define PACKET_SENT 0x20 /* TX only */ +#define PACKET_UNDERRUN 0x30 /* TX only */ +#define PACKET_PORT_MASK 0x03 /* RX only */ + +/* bit numbers in PLX9060 doorbell registers */ +#define DOORBELL_FROM_CARD_TX_0 0 /* packet sent by the card */ +#define DOORBELL_FROM_CARD_TX_1 1 +#define DOORBELL_FROM_CARD_TX_2 2 +#define DOORBELL_FROM_CARD_TX_3 3 +#define DOORBELL_FROM_CARD_RX 4 +#define DOORBELL_FROM_CARD_CABLE_0 5 /* cable/PM/etc. changed */ +#define DOORBELL_FROM_CARD_CABLE_1 6 +#define DOORBELL_FROM_CARD_CABLE_2 7 +#define DOORBELL_FROM_CARD_CABLE_3 8 + +#define DOORBELL_TO_CARD_OPEN_0 0 +#define DOORBELL_TO_CARD_OPEN_1 1 +#define DOORBELL_TO_CARD_OPEN_2 2 +#define DOORBELL_TO_CARD_OPEN_3 3 +#define DOORBELL_TO_CARD_CLOSE_0 4 +#define DOORBELL_TO_CARD_CLOSE_1 5 +#define DOORBELL_TO_CARD_CLOSE_2 6 +#define DOORBELL_TO_CARD_CLOSE_3 7 +#define DOORBELL_TO_CARD_TX_0 8 /* outbound packet queued */ +#define DOORBELL_TO_CARD_TX_1 9 +#define DOORBELL_TO_CARD_TX_2 10 +#define DOORBELL_TO_CARD_TX_3 11 + +/* firmware-only status bits, starting from last DOORBELL_TO_CARD + 1 */ +#define TASK_SCC_0 12 +#define TASK_SCC_1 13 +#define TASK_SCC_2 14 +#define TASK_SCC_3 15 + +#define ALIGN32(x) (((x) + 3) & 0xFFFFFFFC) +#define BUFFER_LENGTH ALIGN32(HDLC_MAX_MRU + 4) /* 4 bytes for 32-bit CRC */ + +/* Address of TX and RX buffers in 68360 address space */ +#define BUFFERS_ADDR 0x4000 /* 16 KB */ + +#ifndef __ASSEMBLER__ +#define PLX_OFFSET 0 +#else +#define PLX_OFFSET PLX + 0x80 +#endif + +#define PLX_MAILBOX_0 (PLX_OFFSET + 0x40) +#define PLX_MAILBOX_1 (PLX_OFFSET + 0x44) +#define PLX_MAILBOX_2 (PLX_OFFSET + 0x48) +#define PLX_MAILBOX_3 (PLX_OFFSET + 0x4C) +#define PLX_MAILBOX_4 (PLX_OFFSET + 0x50) +#define PLX_MAILBOX_5 (PLX_OFFSET + 0x54) +#define PLX_MAILBOX_6 (PLX_OFFSET + 0x58) +#define PLX_MAILBOX_7 (PLX_OFFSET + 0x5C) +#define PLX_DOORBELL_TO_CARD (PLX_OFFSET + 0x60) +#define PLX_DOORBELL_FROM_CARD (PLX_OFFSET + 0x64) +#define PLX_INTERRUPT_CS (PLX_OFFSET + 0x68) +#define PLX_CONTROL (PLX_OFFSET + 0x6C) + +#ifdef __ASSEMBLER__ +#define PLX_DMA_0_MODE (PLX + 0x100) +#define PLX_DMA_0_PCI (PLX + 0x104) +#define PLX_DMA_0_LOCAL (PLX + 0x108) +#define PLX_DMA_0_LENGTH (PLX + 0x10C) +#define PLX_DMA_0_DESC (PLX + 0x110) +#define PLX_DMA_1_MODE (PLX + 0x114) +#define PLX_DMA_1_PCI (PLX + 0x118) +#define PLX_DMA_1_LOCAL (PLX + 0x11C) +#define PLX_DMA_1_LENGTH (PLX + 0x120) +#define PLX_DMA_1_DESC (PLX + 0x124) +#define PLX_DMA_CMD_STS (PLX + 0x128) +#define PLX_DMA_ARBITR_0 (PLX + 0x12C) +#define PLX_DMA_ARBITR_1 (PLX + 0x130) +#endif + +#define DESC_LENGTH 12 + +/* offsets from start of status_t */ +/* card to host */ +#define STATUS_OPEN 0 +#define STATUS_CABLE (STATUS_OPEN + 4) +#define STATUS_RX_OVERRUNS (STATUS_CABLE + 4) +#define STATUS_RX_FRAME_ERRORS (STATUS_RX_OVERRUNS + 4) + +/* host to card */ +#define STATUS_PARITY (STATUS_RX_FRAME_ERRORS + 4) +#define STATUS_ENCODING (STATUS_PARITY + 4) +#define STATUS_CLOCKING (STATUS_ENCODING + 4) +#define STATUS_TX_DESCS (STATUS_CLOCKING + 4) + +#ifndef __ASSEMBLER__ + +typedef struct { + volatile u32 stat; + u32 address; /* PCI address */ + volatile u32 length; +}desc_t; + + +typedef struct { +// Card to host + volatile u32 open; + volatile u32 cable; + volatile u32 rx_overruns; + volatile u32 rx_frame_errors; + +// Host to card + u32 parity; + u32 encoding; + u32 clocking; + desc_t tx_descs[TX_BUFFERS]; +}port_status_t; + +#endif /* __ASSEMBLER__ */ --- linux-2.6.orig/drivers/net/wan/wanxl.c 2003-09-13 17:30:27.000000000 +0200 +++ linux-2.6/drivers/net/wan/wanxl.c 2003-09-13 16:48:29.000000000 +0200 @@ -0,0 +1,836 @@ +/* + * wanXL serial card driver for Linux + * host part + * + * Copyright (C) 2003 Krzysztof Halasa + * + * 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. + * + * Status: + * - Only DTE (external clock) support with NRZ and NRZI encodings + * - wanXL100 will require minor driver modifications, no access to hw + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "wanxl.h" + +static const char* version = "wanXL serial card driver version: 0.46"; + +#define PLX_CTL_RESET 0x40000000 /* adapter reset */ + +#undef DEBUG_PKT +#define DEBUG_PCI + +/* MAILBOX #1 - PUTS COMMANDS */ +#define MBX1_CMD_ABORTJ 0x85000000 /* Abort and Jump */ +#ifdef __LITTLE_ENDIAN +#define MBX1_CMD_BSWAP 0x8C000001 /* little-endian Byte Swap Mode */ +#else +#define MBX1_CMD_BSWAP 0x8C000000 /* big-endian Byte Swap Mode */ +#endif + +/* MAILBOX #2 - DRAM SIZE */ +#define MBX2_MEMSZ_MASK 0xFFFF0000 /* PUTS Memory Size Register mask */ + + +typedef struct { + hdlc_device hdlc; /* HDLC device struct - must be first */ + struct card_t *card; + spinlock_t lock; /* for wanxl_xmit */ + int node; /* physical port #0 - 3 */ + unsigned int clock_type; + int tx_in, tx_out; + struct sk_buff *tx_skbs[TX_BUFFERS]; +}port_t; + + +typedef struct { + desc_t rx_descs[RX_QUEUE_LENGTH]; + port_status_t port_status[4]; +}card_status_t; + + +typedef struct card_t { + int n_ports; /* 1, 2 or 4 ports */ + u8 irq; + + u8 *plx; /* PLX PCI9060 virtual base address */ + struct pci_dev *pdev; /* for pdev->slot_name */ + port_t *ports[4]; + int rx_in; + struct sk_buff *rx_skbs[RX_QUEUE_LENGTH]; + card_status_t *status; /* shared between host and card */ + dma_addr_t status_address; +}card_t; + + + +static inline port_t* hdlc_to_port(hdlc_device *hdlc) +{ + return (port_t*)hdlc; +} + + +static inline port_t* dev_to_port(struct net_device *dev) +{ + return hdlc_to_port(dev_to_hdlc(dev)); +} + + +static inline struct net_device *port_to_dev(port_t* port) +{ + return hdlc_to_dev(&port->hdlc); +} + + +static inline const char* port_name(port_t *port) +{ + return hdlc_to_name((hdlc_device*)port); +} + + +static inline const char* card_name(struct pci_dev *pdev) +{ + return pdev->slot_name; +} + + +static inline port_status_t* get_status(port_t *port) +{ + return &port->card->status->port_status[port->node]; +} + + +#ifdef DEBUG_PCI +static inline dma_addr_t pci_map_single_debug(struct pci_dev *pdev, void *ptr, + size_t size, int direction) +{ + dma_addr_t addr = pci_map_single(pdev, ptr, size, direction); + if (addr + size > 0x100000000LL) + printk(KERN_CRIT "wanXL %s: pci_map_single() returned memory" + " at 0x%X!\n", card_name(pdev), addr); + return addr; +} + +#undef pci_map_single +#define pci_map_single pci_map_single_debug +#endif + + +/* Cable and/or personality module change interrupt service */ +static inline void wanxl_cable_intr(port_t *port) +{ + u32 value = get_status(port)->cable; + int valid = 1; + const char *cable, *pm, *dte = "", *dsr = "", *dcd = ""; + + switch(value & 0x7) { + case STATUS_CABLE_V35: cable = "V.35"; break; + case STATUS_CABLE_X21: cable = "X.21"; break; + case STATUS_CABLE_V24: cable = "V.24"; break; + case STATUS_CABLE_EIA530: cable = "EIA530"; break; + case STATUS_CABLE_NONE: cable = "no"; break; + default: cable = "invalid"; + } + + switch((value >> STATUS_CABLE_PM_SHIFT) & 0x7) { + case STATUS_CABLE_V35: pm = "V.35"; break; + case STATUS_CABLE_X21: pm = "X.21"; break; + case STATUS_CABLE_V24: pm = "V.24"; break; + case STATUS_CABLE_EIA530: pm = "EIA530"; break; + case STATUS_CABLE_NONE: pm = "no personality"; valid = 0; break; + default: pm = "invalid personality"; valid = 0; + } + + if (valid) { + if ((value & 7) == ((value >> STATUS_CABLE_PM_SHIFT) & 7)) { + dsr = (value & STATUS_CABLE_DSR) ? ", DSR ON" : + ", DSR off"; + dcd = (value & STATUS_CABLE_DCD) ? ", carrier ON" : + ", carrier off"; + } + dte = (value & STATUS_CABLE_DCE) ? " DCE" : " DTE"; + } + printk(KERN_INFO "%s: %s%s module, %s cable%s%s\n", + port_name(port), pm, dte, cable, dsr, dcd); + + hdlc_set_carrier(value & STATUS_CABLE_DCD, &port->hdlc); +} + + + +/* Transmit complete interrupt service */ +static inline void wanxl_tx_intr(port_t *port) +{ + while (1) { + desc_t *desc; + desc = &get_status(port)->tx_descs[port->tx_in]; + struct sk_buff *skb = port->tx_skbs[port->tx_in]; + + switch (desc->stat) { + case PACKET_FULL: + case PACKET_EMPTY: + netif_wake_queue(port_to_dev(port)); + return; + + case PACKET_UNDERRUN: + port->hdlc.stats.tx_errors++; + port->hdlc.stats.tx_fifo_errors++; + break; + + default: + port->hdlc.stats.tx_packets++; + port->hdlc.stats.tx_bytes += skb->len; + } + desc->stat = PACKET_EMPTY; /* Free descriptor */ + pci_unmap_single(port->card->pdev, desc->address, skb->len, + PCI_DMA_TODEVICE); + dev_kfree_skb_irq(skb); + port->tx_in = (port->tx_in + 1) % TX_BUFFERS; + } +} + + + +/* Receive complete interrupt service */ +static inline void wanxl_rx_intr(card_t *card) +{ + desc_t *desc; + while(desc = &card->status->rx_descs[card->rx_in], + desc->stat != PACKET_EMPTY) { + struct sk_buff *skb = card->rx_skbs[card->rx_in]; + port_t *port = card->ports[desc->stat & PACKET_PORT_MASK]; + struct net_device *dev = port_to_dev(port); + + if ((desc->stat & PACKET_PORT_MASK) > card->n_ports) + printk(KERN_CRIT "wanXL %s: received packet for" + " nonexistent port\n", card_name(card->pdev)); + + else if (!skb) + port->hdlc.stats.rx_dropped++; + + else { + pci_unmap_single(card->pdev, desc->address, + BUFFER_LENGTH, PCI_DMA_FROMDEVICE); + skb_put(skb, desc->length); + +#ifdef DEBUG_PKT + printk(KERN_DEBUG "%s RX(%i):", port_name(port), + skb->len); + debug_frame(skb); +#endif + port->hdlc.stats.rx_packets++; + port->hdlc.stats.rx_bytes += skb->len; + skb->mac.raw = skb->data; + skb->dev = dev; + dev->last_rx = jiffies; + skb->protocol = hdlc_type_trans(skb, dev); + netif_rx(skb); + skb = NULL; + } + + if (!skb) { + skb = dev_alloc_skb(BUFFER_LENGTH); + desc->address = skb ? + pci_map_single(card->pdev, skb->data, + BUFFER_LENGTH, + PCI_DMA_FROMDEVICE) : 0; + card->rx_skbs[card->rx_in] = skb; + } + desc->stat = PACKET_EMPTY; /* Free descriptor */ + card->rx_in = (card->rx_in + 1) % RX_QUEUE_LENGTH; + } +} + + + +static irqreturn_t wanxl_intr(int irq, void* dev_id, struct pt_regs *regs) +{ + card_t *card = dev_id; + int i; + u32 stat; + int handled = 0; + + + while((stat = readl(card->plx + PLX_DOORBELL_FROM_CARD)) != 0) { + handled = 1; + writel(stat, card->plx + PLX_DOORBELL_FROM_CARD); + + for (i = 0; i < card->n_ports; i++) { + if (stat & (1 << (DOORBELL_FROM_CARD_TX_0 + i))) + wanxl_tx_intr(card->ports[i]); + if (stat & (1 << (DOORBELL_FROM_CARD_CABLE_0 + i))) + wanxl_cable_intr(card->ports[i]); + } + if (stat & (1 << DOORBELL_FROM_CARD_RX)) + wanxl_rx_intr(card); + } + + return IRQ_RETVAL(handled); +} + + + +static int wanxl_xmit(struct sk_buff *skb, struct net_device *dev) +{ + hdlc_device *hdlc = dev_to_hdlc(dev); + port_t *port = hdlc_to_port(hdlc); + + spin_lock(&port->lock); + + desc_t *desc = &get_status(port)->tx_descs[port->tx_out]; + if (desc->stat != PACKET_EMPTY) { + /* should never happen - previous xmit should stop queue */ +#ifdef DEBUG_PKT + printk(KERN_DEBUG "%s: transmitter buffer full\n", + port_name(port)); +#endif + netif_stop_queue(dev); + spin_unlock_irq(&port->lock); + return 1; /* request packet to be queued */ + } + +#ifdef DEBUG_PKT + printk(KERN_DEBUG "%s TX(%i):", port_name(port), skb->len); + debug_frame(skb); +#endif + + port->tx_skbs[port->tx_out] = skb; + desc->address = pci_map_single(port->card->pdev, skb->data, skb->len, + PCI_DMA_TODEVICE); + desc->length = skb->len; + desc->stat = PACKET_FULL; + writel(1 << (DOORBELL_TO_CARD_TX_0 + port->node), + port->card->plx + PLX_DOORBELL_TO_CARD); + dev->trans_start = jiffies; + + port->tx_out = (port->tx_out + 1) % TX_BUFFERS; + + if (get_status(port)->tx_descs[port->tx_out].stat != PACKET_EMPTY) { + netif_stop_queue(dev); +#ifdef DEBUG_PKT + printk(KERN_DEBUG "%s: transmitter buffer full\n", + port_name(port)); +#endif + } + + spin_unlock(&port->lock); + return 0; +} + + + +static int wanxl_attach(hdlc_device *hdlc, unsigned short encoding, + unsigned short parity) +{ + port_t *port = hdlc_to_port(hdlc); + + if (encoding != ENCODING_NRZ && + encoding != ENCODING_NRZI) + return -EINVAL; + + if (parity != PARITY_NONE && + parity != PARITY_CRC32_PR1_CCITT && + parity != PARITY_CRC16_PR1_CCITT && + parity != PARITY_CRC32_PR0_CCITT && + parity != PARITY_CRC16_PR0_CCITT) + return -EINVAL; + + get_status(port)->encoding = encoding; + get_status(port)->parity = parity; + return 0; +} + + + +static int wanxl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + const size_t size = sizeof(sync_serial_settings); + sync_serial_settings line; + hdlc_device *hdlc = dev_to_hdlc(dev); + port_t *port = hdlc_to_port(hdlc); + + if (cmd != SIOCWANDEV) + return hdlc_ioctl(dev, ifr, cmd); + + switch (ifr->ifr_settings.type) { + case IF_GET_IFACE: + ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL; + if (ifr->ifr_settings.size < size) { + ifr->ifr_settings.size = size; /* data size wanted */ + return -ENOBUFS; + } + line.clock_type = get_status(port)->clocking; + line.clock_rate = 0; + line.loopback = 0; + + if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &line, size)) + return -EFAULT; + return 0; + + case IF_IFACE_SYNC_SERIAL: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (dev->flags & IFF_UP) + return -EBUSY; + + if (copy_from_user(&line, ifr->ifr_settings.ifs_ifsu.sync, + size)) + return -EFAULT; + + if (line.clock_type != CLOCK_EXT && + line.clock_type != CLOCK_TXFROMRX) + return -EINVAL; /* No such clock setting */ + + if (line.loopback != 0) + return -EINVAL; + + get_status(port)->clocking = line.clock_type; + return 0; + + default: + return hdlc_ioctl(dev, ifr, cmd); + } +} + + + +static int wanxl_open(struct net_device *dev) +{ + hdlc_device *hdlc = dev_to_hdlc(dev); + port_t *port = hdlc_to_port(hdlc); + u8 *dbr = port->card->plx + PLX_DOORBELL_TO_CARD; + unsigned long timeout; + int i; + + if (get_status(port)->open) { + printk(KERN_ERR "%s: port already open\n", port_name(port)); + return -EIO; + } + if ((i = hdlc_open(hdlc)) != 0) + return i; + + port->tx_in = port->tx_out = 0; + for (i = 0; i < TX_BUFFERS; i++) + get_status(port)->tx_descs[i].stat = PACKET_EMPTY; + /* signal the card */ + writel(1 << (DOORBELL_TO_CARD_OPEN_0 + port->node), dbr); + + timeout = jiffies + HZ; + do + if (get_status(port)->open) + return 0; + while (time_after(timeout, jiffies)); + + printk(KERN_ERR "%s: unable to open port\n", port_name(port)); + /* ask the card to close the port, should it be still alive */ + writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node), dbr); + return -EFAULT; +} + + + +static int wanxl_close(struct net_device *dev) +{ + hdlc_device *hdlc = dev_to_hdlc(dev); + port_t *port = hdlc_to_port(hdlc); + unsigned long timeout; + int i; + + hdlc_close(hdlc); + /* signal the card */ + writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node), + port->card->plx + PLX_DOORBELL_TO_CARD); + + timeout = jiffies + HZ; + do + if (!get_status(port)->open) + break; + while (time_after(timeout, jiffies)); + + if (get_status(port)->open) + printk(KERN_ERR "%s: unable to close port\n", port_name(port)); + + for (i = 0; i < TX_BUFFERS; i++) { + desc_t *desc = &get_status(port)->tx_descs[i]; + + if (desc->stat != PACKET_EMPTY) { + desc->stat = PACKET_EMPTY; + pci_unmap_single(port->card->pdev, desc->address, + port->tx_skbs[i]->len, + PCI_DMA_TODEVICE); + dev_kfree_skb(port->tx_skbs[i]); + } + } + return 0; +} + + + +static struct net_device_stats *wanxl_get_stats(struct net_device *dev) +{ + hdlc_device *hdlc = dev_to_hdlc(dev); + port_t *port = hdlc_to_port(hdlc); + + hdlc->stats.rx_over_errors = get_status(port)->rx_overruns; + hdlc->stats.rx_frame_errors = get_status(port)->rx_frame_errors; + hdlc->stats.rx_errors = hdlc->stats.rx_over_errors + + hdlc->stats.rx_frame_errors; + return &hdlc->stats; +} + + + +static int wanxl_puts_command(card_t *card, u32 cmd) +{ + unsigned long timeout = jiffies + 5 * HZ; + + writel(cmd, card->plx + PLX_MAILBOX_1); + do { + if (readl(card->plx + PLX_MAILBOX_1) == 0) + return 0; + + schedule(); + }while (time_after(timeout, jiffies)); + + return -1; +} + + + +static void wanxl_reset(card_t *card) +{ + u32 old_value = readl(card->plx + PLX_CONTROL) & ~PLX_CTL_RESET; + + writel(0x80, card->plx + PLX_MAILBOX_0); + writel(old_value | PLX_CTL_RESET, card->plx + PLX_CONTROL); + readl(card->plx + PLX_CONTROL); /* wait for posted write */ + udelay(1); + writel(old_value, card->plx + PLX_CONTROL); + readl(card->plx + PLX_CONTROL); /* wait for posted write */ +} + + + +static void wanxl_pci_remove_one(struct pci_dev *pdev) +{ + card_t *card = pci_get_drvdata(pdev); + int i; + + /* unregister and free all host resources */ + if (card->irq) + free_irq(card->irq, card); + + for (i = 0; i < 4; i++) + if (card->ports[i]) + unregister_hdlc_device(&card->ports[i]->hdlc); + + wanxl_reset(card); + + for (i = 0; i < RX_QUEUE_LENGTH; i++) + if (card->rx_skbs[i]) { + pci_unmap_single(card->pdev, + card->status->rx_descs[i].address, + BUFFER_LENGTH, PCI_DMA_FROMDEVICE); + dev_kfree_skb(card->rx_skbs[i]); + } + + if (card->plx) + iounmap(card->plx); + + if (card->status) + pci_free_consistent(pdev, sizeof(card_status_t), + card->status, card->status_address); + + pci_set_drvdata(pdev, NULL); + kfree(card); + pci_release_regions(pdev); +} + + +#include "wanxlfw.inc" + +static int __devinit wanxl_pci_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + card_t *card; + u32 ramsize, stat; + unsigned long timeout; + u32 plx_phy; /* PLX PCI base address */ + u32 mem_phy; /* memory PCI base addr */ + u8 *mem; /* memory virtual base addr */ + int i, ports, alloc_size; + + i = pci_enable_device(pdev); + if (i) + return i; + + /* QUICC can only access first 256 MB of host RAM directly, + but PLX9060 DMA does 32-bits for actual packet data transfers */ + + /* FIXME when PCI/DMA subsystems are fixed. + We set both dma_mask and consistent_dma_mask to 28 bits + and pray pci_alloc_consistent() will use this info. It should + work on most platforms */ + if (pci_set_consistent_dma_mask(pdev, 0x0FFFFFFF) || + pci_set_dma_mask(pdev, 0x0FFFFFFF)) { + printk(KERN_ERR "No usable DMA configuration\n"); + return -EIO; + } + + i = pci_request_regions(pdev, "wanXL"); + if (i) + return i; + + switch (pdev->device) { + case PCI_DEVICE_ID_SBE_WANXL100: ports = 1; break; + case PCI_DEVICE_ID_SBE_WANXL200: ports = 2; break; + default: ports = 4; + } + + alloc_size = sizeof(card_t) + ports * sizeof(port_t); + card = kmalloc(alloc_size, GFP_KERNEL); + if (card == NULL) { + printk(KERN_ERR "wanXL %s: unable to allocate memory\n", + card_name(pdev)); + pci_release_regions(pdev); + return -ENOBUFS; + } + memset(card, 0, alloc_size); + + pci_set_drvdata(pdev, card); + card->pdev = pdev; + card->n_ports = ports; + + card->status = pci_alloc_consistent(pdev, sizeof(card_status_t), + &card->status_address); + if (card->status == NULL) { + wanxl_pci_remove_one(pdev); + return -ENOBUFS; + } + +#ifdef DEBUG_PCI + printk(KERN_DEBUG "wanXL %s: pci_alloc_consistent() returned memory" + " at 0x%X\n", card_name(pdev), card->status_address); +#endif + + /* FIXME when PCI/DMA subsystems are fixed. + We set both dma_mask and consistent_dma_mask back to 32 bits + to indicate the card can do 32-bit DMA addressing */ + if (pci_set_consistent_dma_mask(pdev, 0xFFFFFFFF) || + pci_set_dma_mask(pdev, 0xFFFFFFFF)) { + printk(KERN_ERR "No usable DMA configuration\n"); + wanxl_pci_remove_one(pdev); + return -EIO; + } + + /* set up PLX mapping */ + plx_phy = pci_resource_start(pdev, 0); + card->plx = ioremap_nocache(plx_phy, 0x70); + +#if RESET_WHILE_LOADING + wanxl_reset(card); +#endif + + timeout = jiffies + 20 * HZ; + while ((stat = readl(card->plx + PLX_MAILBOX_0)) != 0) { + if (time_before(timeout, jiffies)) { + printk(KERN_WARNING "wanXL %s: timeout waiting for" + " PUTS to complete\n", card_name(pdev)); + wanxl_pci_remove_one(pdev); + return -ENODEV; + } + + switch(stat & 0xC0) { + case 0x00: /* hmm - PUTS completed with non-zero code? */ + case 0x80: /* PUTS still testing the hardware */ + break; + + default: + printk(KERN_WARNING "wanXL %s: PUTS test 0x%X" + " failed\n", card_name(pdev), stat & 0x30); + wanxl_pci_remove_one(pdev); + return -ENODEV; + } + + schedule(); + } + + /* get on-board memory size (PUTS detects no more than 4 MB) */ + ramsize = readl(card->plx + PLX_MAILBOX_2) & MBX2_MEMSZ_MASK; + + /* set up on-board RAM mapping */ + mem_phy = pci_resource_start(pdev, 2); + + + /* sanity check the board's reported memory size */ + if (ramsize < BUFFERS_ADDR + + (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports) { + printk(KERN_WARNING "wanXL %s: no enough on-board RAM" + " (%u bytes detected, %u bytes required)\n", + card_name(pdev), ramsize, BUFFERS_ADDR + + (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports); + wanxl_pci_remove_one(pdev); + return -ENODEV; + } + + if (wanxl_puts_command(card, MBX1_CMD_BSWAP)) { + printk(KERN_WARNING "wanXL %s: unable to Set Byte Swap" + " Mode\n", card_name(pdev)); + wanxl_pci_remove_one(pdev); + return -ENODEV; + } + + for (i = 0; i < ports; i++) { + port_t *port = (void *)card + sizeof(card_t) + + i * sizeof(port_t); + struct net_device *dev = hdlc_to_dev(&port->hdlc); + spin_lock_init(&port->lock); + SET_MODULE_OWNER(dev); + dev->tx_queue_len = 50; + dev->do_ioctl = wanxl_ioctl; + dev->open = wanxl_open; + dev->stop = wanxl_close; + port->hdlc.attach = wanxl_attach; + port->hdlc.xmit = wanxl_xmit; + if(register_hdlc_device(&port->hdlc)) { + printk(KERN_ERR "wanXL %s: unable to register hdlc" + " device\n", card_name(pdev)); + wanxl_pci_remove_one(pdev); + return -ENOBUFS; + } + card->ports[i] = port; + dev->get_stats = wanxl_get_stats; + port->card = card; + port->node = i; + get_status(port)->clocking = CLOCK_EXT; + } + + for (i = 0; i < RX_QUEUE_LENGTH; i++) { + struct sk_buff *skb = dev_alloc_skb(BUFFER_LENGTH); + card->rx_skbs[i] = skb; + if (skb) + card->status->rx_descs[i].address = + pci_map_single(card->pdev, skb->data, + BUFFER_LENGTH, + PCI_DMA_FROMDEVICE); + } + + mem = ioremap_nocache(mem_phy, PDM_OFFSET + sizeof(firmware)); + for (i = 0; i < sizeof(firmware); i += 4) + writel(htonl(*(u32*)(firmware + i)), mem + PDM_OFFSET + i); + + for (i = 0; i < ports; i++) + writel(card->status_address + + (void *)&card->status->port_status[i] - + (void *)card->status, mem + PDM_OFFSET + 4 + i * 4); + writel(card->status_address, mem + PDM_OFFSET + 20); + writel(PDM_OFFSET, mem); + iounmap(mem); + + writel(0, card->plx + PLX_MAILBOX_5); + + if (wanxl_puts_command(card, MBX1_CMD_ABORTJ)) { + printk(KERN_WARNING "wanXL %s: unable to Abort and Jump\n", + card_name(pdev)); + wanxl_pci_remove_one(pdev); + return -ENODEV; + } + + stat = 0; + timeout = jiffies + 5 * HZ; + do { + if ((stat = readl(card->plx + PLX_MAILBOX_5)) != 0) + break; + schedule(); + }while (time_after(timeout, jiffies)); + + if (!stat) { + printk(KERN_WARNING "wanXL %s: timeout while initializing card" + "firmware\n", card_name(pdev)); + wanxl_pci_remove_one(pdev); + return -ENODEV; + } + +#if DETECT_RAM + ramsize = stat; +#endif + + printk(KERN_INFO "wanXL %s: at 0x%X, %u KB of RAM at 0x%X, irq" + " %u\n" KERN_INFO "wanXL %s: port", card_name(pdev), + plx_phy, ramsize / 1024, mem_phy, pdev->irq, card_name(pdev)); + + for (i = 0; i < ports; i++) + printk("%s #%i: %s", i ? "," : "", i, + port_name(card->ports[i])); + printk("\n"); + + /* Allocate IRQ */ + if(request_irq(pdev->irq, wanxl_intr, SA_SHIRQ, "wanXL", card)) { + printk(KERN_WARNING "wanXL %s: could not allocate IRQ%i.\n", + card_name(pdev), pdev->irq); + wanxl_pci_remove_one(pdev); + return -EBUSY; + } + card->irq = pdev->irq; + + return 0; +} + +static struct pci_device_id wanxl_pci_tbl[] __devinitdata = { + { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL100, PCI_ANY_ID, + PCI_ANY_ID, 0, 0, 0 }, + { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL200, PCI_ANY_ID, + PCI_ANY_ID, 0, 0, 0 }, + { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL400, PCI_ANY_ID, + PCI_ANY_ID, 0, 0, 0 }, + { 0, } +}; + + +static struct pci_driver wanxl_pci_driver = { + name: "wanXL", + id_table: wanxl_pci_tbl, + probe: wanxl_pci_init_one, + remove: wanxl_pci_remove_one, +}; + + +static int __init wanxl_init_module(void) +{ +#ifdef MODULE + printk(KERN_INFO "%s\n", version); +#endif + return pci_module_init(&wanxl_pci_driver); +} + +static void __exit wanxl_cleanup_module(void) +{ + pci_unregister_driver(&wanxl_pci_driver); +} + + +MODULE_AUTHOR("Krzysztof Halasa "); +MODULE_DESCRIPTION("SBE Inc. wanXL serial port driver"); +MODULE_LICENSE("GPL v2"); +MODULE_DEVICE_TABLE(pci, wanxl_pci_tbl); + +module_init(wanxl_init_module); +module_exit(wanxl_cleanup_module); --- linux-2.6.orig/drivers/net/wan/wanxlfw.S 2003-09-13 17:30:27.000000000 +0200 +++ linux-2.6/drivers/net/wan/wanxlfw.S 2003-09-13 17:30:08.000000000 +0200 @@ -0,0 +1,895 @@ +.psize 0 +/* + wanXL serial card driver for Linux + card firmware part + + Copyright (C) 2003 Krzysztof Halasa + + 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. + + + + + DPRAM BDs: + 0x000 - 0x050 TX#0 0x050 - 0x140 RX#0 + 0x140 - 0x190 TX#1 0x190 - 0x280 RX#1 + 0x280 - 0x2D0 TX#2 0x2D0 - 0x3C0 RX#2 + 0x3C0 - 0x410 TX#3 0x410 - 0x500 RX#3 + + + 000 5FF 1536 Bytes Dual-Port RAM User Data / BDs + 600 6FF 256 Bytes Dual-Port RAM User Data / BDs + 700 7FF 256 Bytes Dual-Port RAM User Data / BDs + C00 CBF 192 Bytes Dual-Port RAM Parameter RAM Page 1 + D00 DBF 192 Bytes Dual-Port RAM Parameter RAM Page 2 + E00 EBF 192 Bytes Dual-Port RAM Parameter RAM Page 3 + F00 FBF 192 Bytes Dual-Port RAM Parameter RAM Page 4 + + local interrupts level + NMI 7 + PIT timer, CPM (RX/TX complete) 4 + PCI9060 DMA and PCI doorbells 3 + Cable - not used 1 +*/ + +#include +#include "wanxl.h" + +/* memory addresses and offsets */ + +MAX_RAM_SIZE = 16 * 1024 * 1024 // max RAM supported by hardware + +PCI9060_VECTOR = 0x0000006C +CPM_IRQ_BASE = 0x40 +ERROR_VECTOR = CPM_IRQ_BASE * 4 +SCC1_VECTOR = (CPM_IRQ_BASE + 0x1E) * 4 +SCC2_VECTOR = (CPM_IRQ_BASE + 0x1D) * 4 +SCC3_VECTOR = (CPM_IRQ_BASE + 0x1C) * 4 +SCC4_VECTOR = (CPM_IRQ_BASE + 0x1B) * 4 +CPM_IRQ_LEVEL = 4 +TIMER_IRQ = 128 +TIMER_IRQ_LEVEL = 4 +PITR_CONST = 0x100 + 16 // 1 Hz timer + +MBAR = 0x0003FF00 + +VALUE_WINDOW = 0x40000000 +ORDER_WINDOW = 0xC0000000 + +PLX = 0xFFF90000 + +CSRA = 0xFFFB0000 +CSRB = 0xFFFB0002 +CSRC = 0xFFFB0004 +CSRD = 0xFFFB0006 +STATUS_CABLE_LL = 0x2000 +STATUS_CABLE_DTR = 0x1000 + +DPRBASE = 0xFFFC0000 + +SCC1_BASE = DPRBASE + 0xC00 +MISC_BASE = DPRBASE + 0xCB0 +SCC2_BASE = DPRBASE + 0xD00 +SCC3_BASE = DPRBASE + 0xE00 +SCC4_BASE = DPRBASE + 0xF00 + +// offset from SCCx_BASE +// SCC_xBASE contain offsets from DPRBASE and must be divisible by 8 +SCC_RBASE = 0 // 16-bit RxBD base address +SCC_TBASE = 2 // 16-bit TxBD base address +SCC_RFCR = 4 // 8-bit Rx function code +SCC_TFCR = 5 // 8-bit Tx function code +SCC_MRBLR = 6 // 16-bit maximum Rx buffer length +SCC_C_MASK = 0x34 // 32-bit CRC constant +SCC_C_PRES = 0x38 // 32-bit CRC preset +SCC_MFLR = 0x46 // 16-bit max Rx frame length (without flags) + +REGBASE = DPRBASE + 0x1000 +PICR = REGBASE + 0x026 // 16-bit periodic irq control +PITR = REGBASE + 0x02A // 16-bit periodic irq timing +OR1 = REGBASE + 0x064 // 32-bit RAM bank #1 options +CICR = REGBASE + 0x540 // 32(24)-bit CP interrupt config +CIMR = REGBASE + 0x548 // 32-bit CP interrupt mask +CISR = REGBASE + 0x54C // 32-bit CP interrupts in-service +PADIR = REGBASE + 0x550 // 16-bit PortA data direction bitmap +PAPAR = REGBASE + 0x552 // 16-bit PortA pin assignment bitmap +PAODR = REGBASE + 0x554 // 16-bit PortA open drain bitmap +PADAT = REGBASE + 0x556 // 16-bit PortA data register + +PCDIR = REGBASE + 0x560 // 16-bit PortC data direction bitmap +PCPAR = REGBASE + 0x562 // 16-bit PortC pin assignment bitmap +PCSO = REGBASE + 0x564 // 16-bit PortC special options +PCDAT = REGBASE + 0x566 // 16-bit PortC data register +PCINT = REGBASE + 0x568 // 16-bit PortC interrupt control +CR = REGBASE + 0x5C0 // 16-bit Command register + +SCC1_REGS = REGBASE + 0x600 +SCC2_REGS = REGBASE + 0x620 +SCC3_REGS = REGBASE + 0x640 +SCC4_REGS = REGBASE + 0x660 +SICR = REGBASE + 0x6EC // 32-bit SI clock route + +// offset from SCCx_REGS +SCC_GSMR_L = 0x00 // 32 bits +SCC_GSMR_H = 0x04 // 32 bits +SCC_PSMR = 0x08 // 16 bits +SCC_TODR = 0x0C // 16 bits +SCC_DSR = 0x0E // 16 bits +SCC_SCCE = 0x10 // 16 bits +SCC_SCCM = 0x14 // 16 bits +SCC_SCCS = 0x17 // 8 bits + +#if QUICC_MEMCPY_USES_PLX + .macro memcpy_from_pci src, dest, len // len must be < 8 MB + addl #3, \len + andl #0xFFFFFFFC, \len // always copy n * 4 bytes + movel \src, PLX_DMA_0_PCI + movel \dest, PLX_DMA_0_LOCAL + movel \len, PLX_DMA_0_LENGTH + movel #0x0103, PLX_DMA_CMD_STS // start channel 0 transfer + bsr memcpy_from_pci_run + .endm + + .macro memcpy_to_pci src, dest, len + addl #3, \len + andl #0xFFFFFFFC, \len // always copy n * 4 bytes + movel \src, PLX_DMA_1_LOCAL + movel \dest, PLX_DMA_1_PCI + movel \len, PLX_DMA_1_LENGTH + movel #0x0301, PLX_DMA_CMD_STS // start channel 1 transfer + bsr memcpy_to_pci_run + .endm + +#else + + .macro memcpy src, dest, len // len must be < 65536 bytes + movel %d7, -(%sp) // src and dest must be < 256 MB + movel \len, %d7 // bits 0 and 1 + lsrl #2, \len + andl \len, \len + beq 99f // only 0 - 3 bytes + subl #1, \len // for dbf +98: movel (\src)+, (\dest)+ + dbfw \len, 98b +99: movel %d7, \len + btstl #1, \len + beq 99f + movew (\src)+, (\dest)+ +99: btstl #0, \len + beq 99f + moveb (\src)+, (\dest)+ +99: + movel (%sp)+, %d7 + .endm + + .macro memcpy_from_pci src, dest, len + addl #VALUE_WINDOW, \src + memcpy \src, \dest, \len + .endm + + .macro memcpy_to_pci src, dest, len + addl #VALUE_WINDOW, \dest + memcpy \src, \dest, \len + .endm +#endif + + + .macro wait_for_command +99: btstl #0, CR + bne 99b + .endm + + + + +/****************************** card initialization *******************/ + .text + .global _start +_start: bra init + + .org _start + 4 +ch_status_addr: .long 0, 0, 0, 0 +rx_descs_addr: .long 0 + +init: +#if DETECT_RAM + movel OR1, %d0 + andl #0xF00007FF, %d0 // mask AMxx bits + orl #0xFFFF800 & ~(MAX_RAM_SIZE - 1), %d0 // update RAM bank size + movel %d0, OR1 +#endif + + addl #VALUE_WINDOW, rx_descs_addr // PCI addresses of shared data + clrl %d0 // D0 = 4 * port +init_1: tstl ch_status_addr(%d0) + beq init_2 + addl #VALUE_WINDOW, ch_status_addr(%d0) +init_2: addl #4, %d0 + cmpl #4 * 4, %d0 + bne init_1 + + movel #pci9060_interrupt, PCI9060_VECTOR + movel #error_interrupt, ERROR_VECTOR + movel #port_interrupt_1, SCC1_VECTOR + movel #port_interrupt_2, SCC2_VECTOR + movel #port_interrupt_3, SCC3_VECTOR + movel #port_interrupt_4, SCC4_VECTOR + movel #timer_interrupt, TIMER_IRQ * 4 + + movel #0x78000000, CIMR // only SCCx IRQs from CPM + movew #(TIMER_IRQ_LEVEL << 8) + TIMER_IRQ, PICR // interrupt from PIT + movew #PITR_CONST, PITR + + // SCC1=SCCa SCC2=SCCb SCC3=SCCc SCC4=SCCd prio=4 HP=-1 IRQ=64-79 + movel #0xD41F40 + (CPM_IRQ_LEVEL << 13), CICR + movel #0x543, PLX_DMA_0_MODE // 32-bit, Ready, Burst, IRQ + movel #0x543, PLX_DMA_1_MODE + movel #0x0, PLX_DMA_0_DESC // from PCI to local + movel #0x8, PLX_DMA_1_DESC // from local to PCI + movel #0x101, PLX_DMA_CMD_STS // enable both DMA channels + // enable local IRQ, DMA, doorbells and PCI IRQ + orl #0x000F0300, PLX_INTERRUPT_CS + +#if DETECT_RAM + bsr ram_test +#else + movel #1, PLX_MAILBOX_5 // non-zero value = init complete +#endif + bsr check_csr + + movew #0xFFFF, PAPAR // all pins are clocks/data + clrw PADIR // first function + clrw PCSO // CD and CTS always active + + +/****************************** main loop *****************************/ + +main: movel channel_stats, %d7 // D7 = doorbell + irq status + clrl channel_stats + + tstl %d7 + bne main_1 + // nothing to do - wait for next event + stop #0x2200 // supervisor + IRQ level 2 + movew #0x2700, %sr // disable IRQs again + bra main + +main_1: clrl %d0 // D0 = 4 * port + clrl %d6 // D6 = doorbell to host value + +main_l: btstl #DOORBELL_TO_CARD_CLOSE_0, %d7 + beq main_op + bclrl #DOORBELL_TO_CARD_OPEN_0, %d7 // in case both bits are set + bsr close_port +main_op: + btstl #DOORBELL_TO_CARD_OPEN_0, %d7 + beq main_cl + bsr open_port +main_cl: + btstl #DOORBELL_TO_CARD_TX_0, %d7 + beq main_txend + bsr tx +main_txend: + btstl #TASK_SCC_0, %d7 + beq main_next + bsr tx_end + bsr rx + +main_next: + lsrl #1, %d7 // port status for next port + addl #4, %d0 // D0 = 4 * next port + cmpl #4 * 4, %d0 + bne main_l + movel %d6, PLX_DOORBELL_FROM_CARD // signal the host + bra main + + +/****************************** open port *****************************/ + +open_port: // D0 = 4 * port, D6 = doorbell to host + movel ch_status_addr(%d0), %a0 // A0 = port status address + tstl STATUS_OPEN(%a0) + bne open_port_ret // port already open + movel #1, STATUS_OPEN(%a0) // confirm the port is open +// setup BDs + clrl tx_in(%d0) + clrl tx_out(%d0) + clrl tx_count(%d0) + clrl rx_in(%d0) + + movel SICR, %d1 // D1 = clock settings in SICR + andl clocking_mask(%d0), %d1 + cmpl #CLOCK_TXFROMRX, STATUS_CLOCKING(%a0) + bne open_port_clock_ext + orl clocking_txfromrx(%d0), %d1 + bra open_port_set_clock + +open_port_clock_ext: + orl clocking_ext(%d0), %d1 +open_port_set_clock: + movel %d1, SICR // update clock settings in SICR + + orw #STATUS_CABLE_DTR, csr_output(%d0) // DTR on + bsr check_csr // call with disabled timer interrupt + +// Setup TX descriptors + movel first_buffer(%d0), %d1 // D1 = starting buffer address + movel tx_first_bd(%d0), %a1 // A1 = starting TX BD address + movel #TX_BUFFERS - 2, %d2 // D2 = TX_BUFFERS - 1 counter + movel #0x18000000, %d3 // D3 = initial TX BD flags: Int + Last + cmpl #PARITY_NONE, STATUS_PARITY(%a0) + beq open_port_tx_loop + bsetl #26, %d3 // TX BD flag: Transmit CRC +open_port_tx_loop: + movel %d3, (%a1)+ // TX flags + length + movel %d1, (%a1)+ // buffer address + addl #BUFFER_LENGTH, %d1 + dbfw %d2, open_port_tx_loop + + bsetl #29, %d3 // TX BD flag: Wrap (last BD) + movel %d3, (%a1)+ // Final TX flags + length + movel %d1, (%a1)+ // buffer address + +// Setup RX descriptors // A1 = starting RX BD address + movel #RX_BUFFERS - 2, %d2 // D2 = RX_BUFFERS - 1 counter +open_port_rx_loop: + movel #0x90000000, (%a1)+ // RX flags + length + movel %d1, (%a1)+ // buffer address + addl #BUFFER_LENGTH, %d1 + dbfw %d2, open_port_rx_loop + + movel #0xB0000000, (%a1)+ // Final RX flags + length + movel %d1, (%a1)+ // buffer address + +// Setup port parameters + movel scc_base_addr(%d0), %a1 // A1 = SCC_BASE address + movel scc_reg_addr(%d0), %a2 // A2 = SCC_REGS address + + movel #0xFFFF, SCC_SCCE(%a2) // clear status bits + movel #0x0000, SCC_SCCM(%a2) // interrupt mask + + movel tx_first_bd(%d0), %d1 + movew %d1, SCC_TBASE(%a1) // D1 = offset of first TxBD + addl #TX_BUFFERS * 8, %d1 + movew %d1, SCC_RBASE(%a1) // D1 = offset of first RxBD + moveb #0x8, SCC_RFCR(%a1) // Intel mode, 1000 + moveb #0x8, SCC_TFCR(%a1) + +// Parity settings + cmpl #PARITY_CRC16_PR1_CCITT, STATUS_PARITY(%a0) + bne open_port_parity_1 + clrw SCC_PSMR(%a2) // CRC16-CCITT + movel #0xF0B8, SCC_C_MASK(%a1) + movel #0xFFFF, SCC_C_PRES(%a1) + movew #HDLC_MAX_MRU + 2, SCC_MFLR(%a1) // 2 bytes for CRC + movew #2, parity_bytes(%d0) + bra open_port_2 + +open_port_parity_1: + cmpl #PARITY_CRC32_PR1_CCITT, STATUS_PARITY(%a0) + bne open_port_parity_2 + movew #0x0800, SCC_PSMR(%a2) // CRC32-CCITT + movel #0xDEBB20E3, SCC_C_MASK(%a1) + movel #0xFFFFFFFF, SCC_C_PRES(%a1) + movew #HDLC_MAX_MRU + 4, SCC_MFLR(%a1) // 4 bytes for CRC + movew #4, parity_bytes(%d0) + bra open_port_2 + +open_port_parity_2: + cmpl #PARITY_CRC16_PR0_CCITT, STATUS_PARITY(%a0) + bne open_port_parity_3 + clrw SCC_PSMR(%a2) // CRC16-CCITT preset 0 + movel #0xF0B8, SCC_C_MASK(%a1) + clrl SCC_C_PRES(%a1) + movew #HDLC_MAX_MRU + 2, SCC_MFLR(%a1) // 2 bytes for CRC + movew #2, parity_bytes(%d0) + bra open_port_2 + +open_port_parity_3: + cmpl #PARITY_CRC32_PR0_CCITT, STATUS_PARITY(%a0) + bne open_port_parity_4 + movew #0x0800, SCC_PSMR(%a2) // CRC32-CCITT preset 0 + movel #0xDEBB20E3, SCC_C_MASK(%a1) + clrl SCC_C_PRES(%a1) + movew #HDLC_MAX_MRU + 4, SCC_MFLR(%a1) // 4 bytes for CRC + movew #4, parity_bytes(%d0) + bra open_port_2 + +open_port_parity_4: + clrw SCC_PSMR(%a2) // no parity + movel #0xF0B8, SCC_C_MASK(%a1) + movel #0xFFFF, SCC_C_PRES(%a1) + movew #HDLC_MAX_MRU, SCC_MFLR(%a1) // 0 bytes for CRC + clrw parity_bytes(%d0) + +open_port_2: + movel #0x00000003, SCC_GSMR_H(%a2) // RTSM + cmpl #ENCODING_NRZI, STATUS_ENCODING(%a0) + bne open_port_nrz + movel #0x10040900, SCC_GSMR_L(%a2) // NRZI: TCI Tend RECN+TENC=1 + bra open_port_3 + +open_port_nrz: + movel #0x10040000, SCC_GSMR_L(%a2) // NRZ: TCI Tend RECN+TENC=0 +open_port_3: + movew #BUFFER_LENGTH, SCC_MRBLR(%a1) + movel %d0, %d1 + lsll #4, %d1 // D1 bits 7 and 6 = port + orl #1, %d1 + movew %d1, CR // Init SCC RX and TX params + wait_for_command + + // TCI Tend ENR ENT + movew #0x001F, SCC_SCCM(%a2) // TXE RXF BSY TXB RXB interrupts + orl #0x00000030, SCC_GSMR_L(%a2) // enable SCC +open_port_ret: + rts + + +/****************************** close port ****************************/ + +close_port: // D0 = 4 * port, D6 = doorbell to host + movel scc_reg_addr(%d0), %a0 // A0 = SCC_REGS address + clrw SCC_SCCM(%a0) // no SCC interrupts + andl #0xFFFFFFCF, SCC_GSMR_L(%a0) // Disable ENT and ENR + + andw #~STATUS_CABLE_DTR, csr_output(%d0) // DTR off + bsr check_csr // call with disabled timer interrupt + + movel ch_status_addr(%d0), %d1 + clrl STATUS_OPEN(%d1) // confirm the port is closed + rts + + +/****************************** transmit packet ***********************/ +// queue packets for transmission +tx: // D0 = 4 * port, D6 = doorbell to host + cmpl #TX_BUFFERS, tx_count(%d0) + beq tx_ret // all DB's = descs in use + + movel tx_out(%d0), %d1 + movel %d1, %d2 // D1 = D2 = tx_out BD# = desc# + mulul #DESC_LENGTH, %d2 // D2 = TX desc offset + addl ch_status_addr(%d0), %d2 + addl #STATUS_TX_DESCS, %d2 // D2 = TX desc address + cmpl #PACKET_FULL, (%d2) // desc status + bne tx_ret + +// queue it + movel 4(%d2), %a0 // PCI address + lsll #3, %d1 // BD is 8-bytes long + addl tx_first_bd(%d0), %d1 // D1 = current tx_out BD addr + + movel 4(%d1), %a1 // A1 = dest address + movel 8(%d2), %d2 // D2 = length + movew %d2, 2(%d1) // length into BD + memcpy_from_pci %a0, %a1, %d2 + bsetl #31, (%d1) // CP go ahead + +// update tx_out and tx_count + movel tx_out(%d0), %d1 + addl #1, %d1 + cmpl #TX_BUFFERS, %d1 + bne tx_1 + clrl %d1 +tx_1: movel %d1, tx_out(%d0) + + addl #1, tx_count(%d0) + bra tx + +tx_ret: rts + + +/****************************** packet received ***********************/ + +// Service receive buffers // D0 = 4 * port, D6 = doorbell to host +rx: movel rx_in(%d0), %d1 // D1 = rx_in BD# + lsll #3, %d1 // BD is 8-bytes long + addl rx_first_bd(%d0), %d1 // D1 = current rx_in BD address + movew (%d1), %d2 // D2 = RX BD flags + btstl #15, %d2 + bne rx_ret // BD still empty + + btstl #1, %d2 + bne rx_overrun + + tstw parity_bytes(%d0) + bne rx_parity + bclrl #2, %d2 // do not test for CRC errors +rx_parity: + andw #0x0CBC, %d2 // mask status bits + cmpw #0x0C00, %d2 // correct frame + bne rx_bad_frame + clrl %d3 + movew 2(%d1), %d3 + subw parity_bytes(%d0), %d3 // D3 = packet length + cmpw #HDLC_MAX_MRU, %d3 + bgt rx_bad_frame + +rx_good_frame: + movel rx_out, %d2 + mulul #DESC_LENGTH, %d2 + addl rx_descs_addr, %d2 // D2 = RX desc address + cmpl #PACKET_EMPTY, (%d2) // desc stat + bne rx_overrun + + movel %d3, 8(%d2) + movel 4(%d1), %a0 // A0 = source address + movel 4(%d2), %a1 + tstl %a1 + beq rx_ignore_data + memcpy_to_pci %a0, %a1, %d3 +rx_ignore_data: + movel packet_full(%d0), (%d2) // update desc stat + +// update D6 and rx_out + bsetl #DOORBELL_FROM_CARD_RX, %d6 // signal host that RX completed + movel rx_out, %d2 + addl #1, %d2 + cmpl #RX_QUEUE_LENGTH, %d2 + bne rx_1 + clrl %d2 +rx_1: movel %d2, rx_out + +rx_free_bd: + andw #0xF000, (%d1) // clear CM and error bits + bsetl #31, (%d1) // free BD +// update rx_in + movel rx_in(%d0), %d1 + addl #1, %d1 + cmpl #RX_BUFFERS, %d1 + bne rx_2 + clrl %d1 +rx_2: movel %d1, rx_in(%d0) + bra rx + +rx_overrun: + movel ch_status_addr(%d0), %d2 + addl #1, STATUS_RX_OVERRUNS(%d2) + bra rx_free_bd + +rx_bad_frame: + movel ch_status_addr(%d0), %d2 + addl #1, STATUS_RX_FRAME_ERRORS(%d2) + bra rx_free_bd + +rx_ret: rts + + +/****************************** packet transmitted ********************/ + +// Service transmit buffers // D0 = 4 * port, D6 = doorbell to host +tx_end: tstl tx_count(%d0) + beq tx_end_ret // TX buffers already empty + + movel tx_in(%d0), %d1 + movel %d1, %d2 // D1 = D2 = tx_in BD# = desc# + lsll #3, %d1 // BD is 8-bytes long + addl tx_first_bd(%d0), %d1 // D1 = current tx_in BD address + movew (%d1), %d3 // D3 = TX BD flags + btstl #15, %d3 + bne tx_end_ret // BD still being transmitted + +// update D6, tx_in and tx_count + orl bell_tx(%d0), %d6 // signal host that TX desc freed + subl #1, tx_count(%d0) + movel tx_in(%d0), %d1 + addl #1, %d1 + cmpl #TX_BUFFERS, %d1 + bne tx_end_1 + clrl %d1 +tx_end_1: + movel %d1, tx_in(%d0) + +// free host's descriptor + mulul #DESC_LENGTH, %d2 // D2 = TX desc offset + addl ch_status_addr(%d0), %d2 + addl #STATUS_TX_DESCS, %d2 // D2 = TX desc address + btstl #1, %d3 + bne tx_end_underrun + movel #PACKET_SENT, (%d2) + bra tx_end + +tx_end_underrun: + movel #PACKET_UNDERRUN, (%d2) + bra tx_end + +tx_end_ret: rts + + +/****************************** PLX PCI9060 DMA memcpy ****************/ + +#if QUICC_MEMCPY_USES_PLX +// called with interrupts disabled +memcpy_from_pci_run: + movel %d0, -(%sp) + movew %sr, -(%sp) +memcpy_1: + movel PLX_DMA_CMD_STS, %d0 // do not btst PLX register directly + btstl #4, %d0 // transfer done? + bne memcpy_end + stop #0x2200 // enable PCI9060 interrupts + movew #0x2700, %sr // disable interrupts again + bra memcpy_1 + +memcpy_to_pci_run: + movel %d0, -(%sp) + movew %sr, -(%sp) +memcpy_2: + movel PLX_DMA_CMD_STS, %d0 // do not btst PLX register directly + btstl #12, %d0 // transfer done? + bne memcpy_end + stop #0x2200 // enable PCI9060 interrupts + movew #0x2700, %sr // disable interrupts again + bra memcpy_2 + +memcpy_end: + movew (%sp)+, %sr + movel (%sp)+, %d0 + rts +#endif + + + + + + +/****************************** PLX PCI9060 interrupt *****************/ + +pci9060_interrupt: + movel %d0, -(%sp) + + movel PLX_DOORBELL_TO_CARD, %d0 + movel %d0, PLX_DOORBELL_TO_CARD // confirm all requests + orl %d0, channel_stats + + movel #0x0909, PLX_DMA_CMD_STS // clear DMA ch #0 and #1 interrupts + + movel (%sp)+, %d0 + rte + +/****************************** SCC interrupts ************************/ + +port_interrupt_1: + orl #0, SCC1_REGS + SCC_SCCE; // confirm SCC events + orl #1 << TASK_SCC_0, channel_stats + movel #0x40000000, CISR + rte + +port_interrupt_2: + orl #0, SCC2_REGS + SCC_SCCE; // confirm SCC events + orl #1 << TASK_SCC_1, channel_stats + movel #0x20000000, CISR + rte + +port_interrupt_3: + orl #0, SCC3_REGS + SCC_SCCE; // confirm SCC events + orl #1 << TASK_SCC_2, channel_stats + movel #0x10000000, CISR + rte + +port_interrupt_4: + orl #0, SCC4_REGS + SCC_SCCE; // confirm SCC events + orl #1 << TASK_SCC_3, channel_stats + movel #0x08000000, CISR + rte + +error_interrupt: + rte + + +/****************************** cable and PM routine ******************/ +// modified registers: none +check_csr: + movel %d0, -(%sp) + movel %d1, -(%sp) + movel %d2, -(%sp) + movel %a0, -(%sp) + movel %a1, -(%sp) + + clrl %d0 // D0 = 4 * port + movel #CSRA, %a0 // A0 = CSR address + +check_csr_loop: + movew (%a0), %d1 // D1 = CSR input bits + andl #0xE7, %d1 // PM and cable sense bits (no DCE bit) + cmpw #STATUS_CABLE_V35 * (1 + 1 << STATUS_CABLE_PM_SHIFT), %d1 + bne check_csr_1 + movew #0x0E08, %d1 + bra check_csr_valid + +check_csr_1: + cmpw #STATUS_CABLE_X21 * (1 + 1 << STATUS_CABLE_PM_SHIFT), %d1 + bne check_csr_2 + movew #0x0408, %d1 + bra check_csr_valid + +check_csr_2: + cmpw #STATUS_CABLE_V24 * (1 + 1 << STATUS_CABLE_PM_SHIFT), %d1 + bne check_csr_3 + movew #0x0208, %d1 + bra check_csr_valid + +check_csr_3: + cmpw #STATUS_CABLE_EIA530 * (1 + 1 << STATUS_CABLE_PM_SHIFT), %d1 + bne check_csr_disable + movew #0x0D08, %d1 + bra check_csr_valid + +check_csr_disable: + movew #0x0008, %d1 // D1 = disable everything + movew #0x80E7, %d2 // D2 = input mask: ignore DSR + bra check_csr_write + +check_csr_valid: // D1 = mode and IRQ bits + movew csr_output(%d0), %d2 + andw #0x3000, %d2 // D2 = requested LL and DTR bits + orw %d2, %d1 // D1 = all requested output bits + movew #0x80FF, %d2 // D2 = input mask: include DSR + +check_csr_write: + cmpw old_csr_output(%d0), %d1 + beq check_csr_input + movew %d1, old_csr_output(%d0) + movew %d1, (%a0) // Write CSR output bits + +check_csr_input: + movew (PCDAT), %d1 + andw dcd_mask(%d0), %d1 + beq check_csr_dcd_on // DCD and CTS signals are negated + movew (%a0), %d1 // D1 = CSR input bits + andw #~STATUS_CABLE_DCD, %d1 // DCD off + bra check_csr_previous + +check_csr_dcd_on: + movew (%a0), %d1 // D1 = CSR input bits + orw #STATUS_CABLE_DCD, %d1 // DCD on +check_csr_previous: + andw %d2, %d1 // input mask + movel ch_status_addr(%d0), %a1 + cmpl STATUS_CABLE(%a1), %d1 // check for change + beq check_csr_next + movel %d1, STATUS_CABLE(%a1) // update status + movel bell_cable(%d0), PLX_DOORBELL_FROM_CARD // signal the host + +check_csr_next: + addl #2, %a0 // next CSR register + addl #4, %d0 // D0 = 4 * next port + cmpl #4 * 4, %d0 + bne check_csr_loop + + movel (%sp)+, %a1 + movel (%sp)+, %a0 + movel (%sp)+, %d2 + movel (%sp)+, %d1 + movel (%sp)+, %d0 + rts + + +/****************************** timer interrupt ***********************/ + +timer_interrupt: + bsr check_csr + rte + + +/****************************** RAM sizing and test *******************/ +#if DETECT_RAM +ram_test: + movel #0x12345678, %d1 // D1 = test value + movel %d1, (128 * 1024 - 4) + movel #128 * 1024, %d0 // D0 = RAM size tested +ram_test_size: + cmpl #MAX_RAM_SIZE, %d0 + beq ram_test_size_found + movel %d0, %a0 + addl #128 * 1024 - 4, %a0 + cmpl (%a0), %d1 + beq ram_test_size_check +ram_test_next_size: + lsll #1, %d0 + bra ram_test_size + +ram_test_size_check: + eorl #0xFFFFFFFF, %d1 + movel %d1, (128 * 1024 - 4) + cmpl (%a0), %d1 + bne ram_test_next_size + +ram_test_size_found: // D0 = RAM size + movel %d0, %a0 // A0 = fill ptr + subl #firmware_end + 4, %d0 + lsrl #2, %d0 + movel %d0, %d1 // D1 = DBf counter +ram_test_fill: + movel %a0, -(%a0) + dbfw %d1, ram_test_fill + subl #0x10000, %d1 + cmpl #0xFFFFFFFF, %d1 + bne ram_test_fill + +ram_test_loop: // D0 = DBf counter + cmpl (%a0)+, %a0 + dbnew %d0, ram_test_loop + bne ram_test_found_bad + subl #0x10000, %d0 + cmpl #0xFFFFFFFF, %d0 + bne ram_test_loop + bra ram_test_all_ok + +ram_test_found_bad: + subl #4, %a0 +ram_test_all_ok: + movel %a0, PLX_MAILBOX_5 + rts +#endif + + +/****************************** constants *****************************/ + +scc_reg_addr: + .long SCC1_REGS, SCC2_REGS, SCC3_REGS, SCC4_REGS +scc_base_addr: + .long SCC1_BASE, SCC2_BASE, SCC3_BASE, SCC4_BASE + +tx_first_bd: + .long DPRBASE + .long DPRBASE + (TX_BUFFERS + RX_BUFFERS) * 8 + .long DPRBASE + (TX_BUFFERS + RX_BUFFERS) * 8 * 2 + .long DPRBASE + (TX_BUFFERS + RX_BUFFERS) * 8 * 3 + +rx_first_bd: + .long DPRBASE + TX_BUFFERS * 8 + .long DPRBASE + TX_BUFFERS * 8 + (TX_BUFFERS + RX_BUFFERS) * 8 + .long DPRBASE + TX_BUFFERS * 8 + (TX_BUFFERS + RX_BUFFERS) * 8 * 2 + .long DPRBASE + TX_BUFFERS * 8 + (TX_BUFFERS + RX_BUFFERS) * 8 * 3 + +first_buffer: + .long BUFFERS_ADDR + .long BUFFERS_ADDR + (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH + .long BUFFERS_ADDR + (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * 2 + .long BUFFERS_ADDR + (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * 3 + +bell_tx: + .long 1 << DOORBELL_FROM_CARD_TX_0, 1 << DOORBELL_FROM_CARD_TX_1 + .long 1 << DOORBELL_FROM_CARD_TX_2, 1 << DOORBELL_FROM_CARD_TX_3 + +bell_cable: + .long 1 << DOORBELL_FROM_CARD_CABLE_0, 1 << DOORBELL_FROM_CARD_CABLE_1 + .long 1 << DOORBELL_FROM_CARD_CABLE_2, 1 << DOORBELL_FROM_CARD_CABLE_3 + +packet_full: + .long PACKET_FULL, PACKET_FULL + 1, PACKET_FULL + 2, PACKET_FULL + 3 + +clocking_ext: + .long 0x0000002C, 0x00003E00, 0x002C0000, 0x3E000000 +clocking_txfromrx: + .long 0x0000002D, 0x00003F00, 0x002D0000, 0x3F000000 +clocking_mask: + .long 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 +dcd_mask: + .word 0x020, 0, 0x080, 0, 0x200, 0, 0x800 + + .ascii "wanXL firmware\n" + .asciz "Copyright (C) 2003 Krzysztof Halasa \n" + + +/****************************** variables *****************************/ + + .align 4 +channel_stats: .long 0 + +tx_in: .long 0, 0, 0, 0 // transmitted +tx_out: .long 0, 0, 0, 0 // received from host for transmission +tx_count: .long 0, 0, 0, 0 // currently in transmit queue + +rx_in: .long 0, 0, 0, 0 // received from port +rx_out: .long 0 // transmitted to host +parity_bytes: .word 0, 0, 0, 0, 0, 0, 0 // only 4 words are used + +csr_output: .word 0 +old_csr_output: .word 0, 0, 0, 0, 0, 0, 0 + .align 4 +firmware_end: // must be dword-aligned --- linux-2.6.orig/drivers/net/wan/wanxlfw.inc 2003-09-13 17:30:27.000000000 +0200 +++ linux-2.6/drivers/net/wan/wanxlfw.inc 2003-09-13 17:30:17.000000000 +0200 @@ -0,0 +1,158 @@ +static u8 firmware[]={ +0x60,0x00,0x00,0x16,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0xB9,0x40,0x00,0x00,0x00,0x00,0x00, +0x10,0x14,0x42,0x80,0x4A,0xB0,0x09,0xB0,0x00,0x00,0x10,0x04,0x67,0x00,0x00,0x0E, +0x06,0xB0,0x40,0x00,0x00,0x00,0x09,0xB0,0x00,0x00,0x10,0x04,0x58,0x80,0x0C,0x80, +0x00,0x00,0x00,0x10,0x66,0x00,0xFF,0xDE,0x21,0xFC,0x00,0x00,0x16,0xBC,0x00,0x6C, +0x21,0xFC,0x00,0x00,0x17,0x5E,0x01,0x00,0x21,0xFC,0x00,0x00,0x16,0xDE,0x01,0x78, +0x21,0xFC,0x00,0x00,0x16,0xFE,0x01,0x74,0x21,0xFC,0x00,0x00,0x17,0x1E,0x01,0x70, +0x21,0xFC,0x00,0x00,0x17,0x3E,0x01,0x6C,0x21,0xFC,0x00,0x00,0x18,0x4C,0x02,0x00, +0x23,0xFC,0x78,0x00,0x00,0x00,0xFF,0xFC,0x15,0x48,0x33,0xFC,0x04,0x80,0xFF,0xFC, +0x10,0x26,0x33,0xFC,0x01,0x10,0xFF,0xFC,0x10,0x2A,0x23,0xFC,0x00,0xD4,0x9F,0x40, 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+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 +}; --- linux-2.6.orig/drivers/net/wan/Kconfig 2003-09-13 16:26:23.000000000 +0200 +++ linux-2.6/drivers/net/wan/Kconfig 2003-09-13 16:37:07.000000000 +0200 @@ -342,6 +342,30 @@ comment "X.25/LAPB support is disabled" depends on WAN && HDLC && (LAPB!=m || HDLC!=m) && LAPB!=y +config WANXL + tristate "SBE Inc. wanXL support" + depends on HDLC && PCI + help + This driver is for wanXL PCI cards made by SBE Inc. If you have + such a card, say Y here and see . + + If you want to compile the driver as a module ( = code which can be + inserted in and removed from the running kernel whenever you want), + say M here and read . The module + will be called wanxl. + + If unsure, say N here. + +config WANXL_BUILD_FIRMWARE + bool "rebuild wanXL firmware" + depends on WANXL + help + This option allows you to rebuild firmware run by the QUICC + processor. It requires as68k, ld68k and hexdump programs. + You should never need this option. + + If unsure, say N here. + config PC300 tristate "Cyclades-PC300 support (RS-232/V.35, X.21, T1/E1 boards)" depends on HDLC && PCI --=-=-=-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/