diff options
Diffstat (limited to 'drivers/net/ethernet/racal/ni5010.c')
| -rw-r--r-- | drivers/net/ethernet/racal/ni5010.c | 771 |
1 files changed, 771 insertions, 0 deletions
diff --git a/drivers/net/ethernet/racal/ni5010.c b/drivers/net/ethernet/racal/ni5010.c new file mode 100644 index 00000000000..072810da9a3 --- /dev/null +++ b/drivers/net/ethernet/racal/ni5010.c @@ -0,0 +1,771 @@ +/* ni5010.c: A network driver for the MiCom-Interlan NI5010 ethercard. + * + * Copyright 1996,1997,2006 Jan-Pascal van Best and Andreas Mohr. + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + * The authors may be reached as: + * janpascal@vanbest.org andi@lisas.de + * + * Sources: + * Donald Becker's "skeleton.c" + * Crynwr ni5010 packet driver + * + * Changes: + * v0.0: First test version + * v0.1: First working version + * v0.2: + * v0.3->v0.90: Now demand setting io and irq when loading as module + * 970430 v0.91: modified for Linux 2.1.14 + * v0.92: Implemented Andreas' (better) NI5010 probe + * 970503 v0.93: Fixed auto-irq failure on warm reboot (JB) + * 970623 v1.00: First kernel version (AM) + * 970814 v1.01: Added detection of onboard receive buffer size (AM) + * 060611 v1.02: slight cleanup: email addresses, driver modernization. + * Bugs: + * - not SMP-safe (no locking of I/O accesses) + * - Note that you have to patch ifconfig for the new /proc/net/dev + * format. It gives incorrect stats otherwise. + * + * To do: + * Fix all bugs :-) + * Move some stuff to chipset_init() + * Handle xmt errors other than collisions + * Complete merge with Andreas' driver + * Implement ring buffers (Is this useful? You can't squeeze + * too many packet in a 2k buffer!) + * Implement DMA (Again, is this useful? Some docs say DMA is + * slower than programmed I/O) + * + * Compile with: + * gcc -O2 -fomit-frame-pointer -m486 -D__KERNEL__ \ + * -DMODULE -c ni5010.c + * + * Insert with e.g.: + * insmod ni5010.ko io=0x300 irq=5 + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/ioport.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/bitops.h> +#include <asm/io.h> +#include <asm/dma.h> + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> + +#include "ni5010.h" + +static const char boardname[] = "NI5010"; +static char version[] __initdata = + "ni5010.c: v1.02 20060611 Jan-Pascal van Best and Andreas Mohr\n"; + +/* bufsize_rcv == 0 means autoprobing */ +static unsigned int bufsize_rcv; + +#define JUMPERED_INTERRUPTS /* IRQ line jumpered on board */ +#undef JUMPERED_DMA /* No DMA used */ +#undef FULL_IODETECT /* Only detect in portlist */ + +#ifndef FULL_IODETECT +/* A zero-terminated list of I/O addresses to be probed. */ +static unsigned int ports[] __initdata = + { 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0 }; +#endif + +/* Use 0 for production, 1 for verification, >2 for debug */ +#ifndef NI5010_DEBUG +#define NI5010_DEBUG 0 +#endif + +/* Information that needs to be kept for each board. */ +struct ni5010_local { + int o_pkt_size; + spinlock_t lock; +}; + +/* Index to functions, as function prototypes. */ + +static int ni5010_probe1(struct net_device *dev, int ioaddr); +static int ni5010_open(struct net_device *dev); +static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev); +static irqreturn_t ni5010_interrupt(int irq, void *dev_id); +static void ni5010_rx(struct net_device *dev); +static void ni5010_timeout(struct net_device *dev); +static int ni5010_close(struct net_device *dev); +static void ni5010_set_multicast_list(struct net_device *dev); +static void reset_receiver(struct net_device *dev); + +static int process_xmt_interrupt(struct net_device *dev); +#define tx_done(dev) 1 +static void hardware_send_packet(struct net_device *dev, char *buf, int length, int pad); +static void chipset_init(struct net_device *dev, int startp); +static void dump_packet(void *buf, int len); +static void ni5010_show_registers(struct net_device *dev); + +static int io; +static int irq; + +struct net_device * __init ni5010_probe(int unit) +{ + struct net_device *dev = alloc_etherdev(sizeof(struct ni5010_local)); + int *port; + int err = 0; + + if (!dev) + return ERR_PTR(-ENOMEM); + + if (unit >= 0) { + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + io = dev->base_addr; + irq = dev->irq; + } + + PRINTK2((KERN_DEBUG "%s: Entering ni5010_probe\n", dev->name)); + + if (io > 0x1ff) { /* Check a single specified location. */ + err = ni5010_probe1(dev, io); + } else if (io != 0) { /* Don't probe at all. */ + err = -ENXIO; + } else { +#ifdef FULL_IODETECT + for (io=0x200; io<0x400 && ni5010_probe1(dev, io) ; io+=0x20) + ; + if (io == 0x400) + err = -ENODEV; + +#else + for (port = ports; *port && ni5010_probe1(dev, *port); port++) + ; + if (!*port) + err = -ENODEV; +#endif /* FULL_IODETECT */ + } + if (err) + goto out; + err = register_netdev(dev); + if (err) + goto out1; + return dev; +out1: + release_region(dev->base_addr, NI5010_IO_EXTENT); +out: + free_netdev(dev); + return ERR_PTR(err); +} + +static inline int rd_port(int ioaddr) +{ + inb(IE_RBUF); + return inb(IE_SAPROM); +} + +static void __init trigger_irq(int ioaddr) +{ + outb(0x00, EDLC_RESET); /* Clear EDLC hold RESET state */ + outb(0x00, IE_RESET); /* Board reset */ + outb(0x00, EDLC_XMASK); /* Disable all Xmt interrupts */ + outb(0x00, EDLC_RMASK); /* Disable all Rcv interrupt */ + outb(0xff, EDLC_XCLR); /* Clear all pending Xmt interrupts */ + outb(0xff, EDLC_RCLR); /* Clear all pending Rcv interrupts */ + /* + * Transmit packet mode: Ignore parity, Power xcvr, + * Enable loopback + */ + outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE); + outb(RMD_BROADCAST, EDLC_RMODE); /* Receive normal&broadcast */ + outb(XM_ALL, EDLC_XMASK); /* Enable all Xmt interrupts */ + udelay(50); /* FIXME: Necessary? */ + outb(MM_EN_XMT|MM_MUX, IE_MMODE); /* Start transmission */ +} + +static const struct net_device_ops ni5010_netdev_ops = { + .ndo_open = ni5010_open, + .ndo_stop = ni5010_close, + .ndo_start_xmit = ni5010_send_packet, + .ndo_set_rx_mode = ni5010_set_multicast_list, + .ndo_tx_timeout = ni5010_timeout, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +}; + +/* + * This is the real probe routine. Linux has a history of friendly device + * probes on the ISA bus. A good device probes avoids doing writes, and + * verifies that the correct device exists and functions. + */ + +static int __init ni5010_probe1(struct net_device *dev, int ioaddr) +{ + static unsigned version_printed; + struct ni5010_local *lp; + int i; + unsigned int data = 0; + int boguscount = 40; + int err = -ENODEV; + + dev->base_addr = ioaddr; + dev->irq = irq; + + if (!request_region(ioaddr, NI5010_IO_EXTENT, boardname)) + return -EBUSY; + + /* + * This is no "official" probe method, I've rather tested which + * probe works best with my seven NI5010 cards + * (they have very different serial numbers) + * Suggestions or failure reports are very, very welcome ! + * But I think it is a relatively good probe method + * since it doesn't use any "outb" + * It should be nearly 100% reliable ! + * well-known WARNING: this probe method (like many others) + * will hang the system if a NE2000 card region is probed ! + * + * - Andreas + */ + + PRINTK2((KERN_DEBUG "%s: entering ni5010_probe1(%#3x)\n", + dev->name, ioaddr)); + + if (inb(ioaddr+0) == 0xff) + goto out; + + while ( (rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr) & + rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr)) != 0xff) + { + if (boguscount-- == 0) + goto out; + } + + PRINTK2((KERN_DEBUG "%s: I/O #1 passed!\n", dev->name)); + + for (i=0; i<32; i++) + if ( (data = rd_port(ioaddr)) != 0xff) break; + if (data==0xff) + goto out; + + PRINTK2((KERN_DEBUG "%s: I/O #2 passed!\n", dev->name)); + + if ((data != SA_ADDR0) || (rd_port(ioaddr) != SA_ADDR1) || + (rd_port(ioaddr) != SA_ADDR2)) + goto out; + + for (i=0; i<4; i++) + rd_port(ioaddr); + + if ( (rd_port(ioaddr) != NI5010_MAGICVAL1) || + (rd_port(ioaddr) != NI5010_MAGICVAL2) ) + goto out; + + PRINTK2((KERN_DEBUG "%s: I/O #3 passed!\n", dev->name)); + + if (NI5010_DEBUG && version_printed++ == 0) + printk(KERN_INFO "%s", version); + + printk("NI5010 ethercard probe at 0x%x: ", ioaddr); + + dev->base_addr = ioaddr; + + for (i=0; i<6; i++) { + outw(i, IE_GP); + dev->dev_addr[i] = inb(IE_SAPROM); + } + printk("%pM ", dev->dev_addr); + + PRINTK2((KERN_DEBUG "%s: I/O #4 passed!\n", dev->name)); + +#ifdef JUMPERED_INTERRUPTS + if (dev->irq == 0xff) + ; + else if (dev->irq < 2) { + unsigned long irq_mask; + + PRINTK2((KERN_DEBUG "%s: I/O #5 passed!\n", dev->name)); + + irq_mask = probe_irq_on(); + trigger_irq(ioaddr); + mdelay(20); + dev->irq = probe_irq_off(irq_mask); + + PRINTK2((KERN_DEBUG "%s: I/O #6 passed!\n", dev->name)); + + if (dev->irq == 0) { + err = -EAGAIN; + printk(KERN_WARNING "%s: no IRQ found!\n", dev->name); + goto out; + } + PRINTK2((KERN_DEBUG "%s: I/O #7 passed!\n", dev->name)); + } else if (dev->irq == 2) { + dev->irq = 9; + } +#endif /* JUMPERED_INTERRUPTS */ + PRINTK2((KERN_DEBUG "%s: I/O #9 passed!\n", dev->name)); + + /* DMA is not supported (yet?), so no use detecting it */ + lp = netdev_priv(dev); + + spin_lock_init(&lp->lock); + + PRINTK2((KERN_DEBUG "%s: I/O #10 passed!\n", dev->name)); + +/* get the size of the onboard receive buffer + * higher addresses than bufsize are wrapped into real buffer + * i.e. data for offs. 0x801 is written to 0x1 with a 2K onboard buffer + */ + if (!bufsize_rcv) { + outb(1, IE_MMODE); /* Put Rcv buffer on system bus */ + outw(0, IE_GP); /* Point GP at start of packet */ + outb(0, IE_RBUF); /* set buffer byte 0 to 0 */ + for (i = 1; i < 0xff; i++) { + outw(i << 8, IE_GP); /* Point GP at packet size to be tested */ + outb(i, IE_RBUF); + outw(0x0, IE_GP); /* Point GP at start of packet */ + data = inb(IE_RBUF); + if (data == i) break; + } + bufsize_rcv = i << 8; + outw(0, IE_GP); /* Point GP at start of packet */ + outb(0, IE_RBUF); /* set buffer byte 0 to 0 again */ + } + printk("-> bufsize rcv/xmt=%d/%d\n", bufsize_rcv, NI5010_BUFSIZE); + + dev->netdev_ops = &ni5010_netdev_ops; + dev->watchdog_timeo = HZ/20; + + dev->flags &= ~IFF_MULTICAST; /* Multicast doesn't work */ + + /* Shut up the ni5010 */ + outb(0, EDLC_RMASK); /* Mask all receive interrupts */ + outb(0, EDLC_XMASK); /* Mask all xmit interrupts */ + outb(0xff, EDLC_RCLR); /* Kill all pending rcv interrupts */ + outb(0xff, EDLC_XCLR); /* Kill all pending xmt interrupts */ + + printk(KERN_INFO "%s: NI5010 found at 0x%x, using IRQ %d", dev->name, ioaddr, dev->irq); + if (dev->dma) + printk(" & DMA %d", dev->dma); + printk(".\n"); + return 0; +out: + release_region(dev->base_addr, NI5010_IO_EXTENT); + return err; +} + +/* + * Open/initialize the board. This is called (in the current kernel) + * sometime after booting when the 'ifconfig' program is run. + * + * This routine should set everything up anew at each open, even + * registers that "should" only need to be set once at boot, so that + * there is a non-reboot way to recover if something goes wrong. + */ + +static int ni5010_open(struct net_device *dev) +{ + int ioaddr = dev->base_addr; + int i; + + PRINTK2((KERN_DEBUG "%s: entering ni5010_open()\n", dev->name)); + + if (request_irq(dev->irq, ni5010_interrupt, 0, boardname, dev)) { + printk(KERN_WARNING "%s: Cannot get irq %#2x\n", dev->name, dev->irq); + return -EAGAIN; + } + PRINTK3((KERN_DEBUG "%s: passed open() #1\n", dev->name)); + /* + * Always allocate the DMA channel after the IRQ, + * and clean up on failure. + */ +#ifdef JUMPERED_DMA + if (request_dma(dev->dma, cardname)) { + printk(KERN_WARNING "%s: Cannot get dma %#2x\n", dev->name, dev->dma); + free_irq(dev->irq, NULL); + return -EAGAIN; + } +#endif /* JUMPERED_DMA */ + + PRINTK3((KERN_DEBUG "%s: passed open() #2\n", dev->name)); + /* Reset the hardware here. Don't forget to set the station address. */ + + outb(RS_RESET, EDLC_RESET); /* Hold up EDLC_RESET while configing board */ + outb(0, IE_RESET); /* Hardware reset of ni5010 board */ + outb(XMD_LBC, EDLC_XMODE); /* Only loopback xmits */ + + PRINTK3((KERN_DEBUG "%s: passed open() #3\n", dev->name)); + /* Set the station address */ + for(i = 0;i < 6; i++) { + outb(dev->dev_addr[i], EDLC_ADDR + i); + } + + PRINTK3((KERN_DEBUG "%s: Initialising ni5010\n", dev->name)); + outb(0, EDLC_XMASK); /* No xmit interrupts for now */ + outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE); + /* Normal packet xmit mode */ + outb(0xff, EDLC_XCLR); /* Clear all pending xmit interrupts */ + outb(RMD_BROADCAST, EDLC_RMODE); + /* Receive broadcast and normal packets */ + reset_receiver(dev); /* Ready ni5010 for receiving packets */ + + outb(0, EDLC_RESET); /* Un-reset the ni5010 */ + + netif_start_queue(dev); + + if (NI5010_DEBUG) ni5010_show_registers(dev); + + PRINTK((KERN_DEBUG "%s: open successful\n", dev->name)); + return 0; +} + +static void reset_receiver(struct net_device *dev) +{ + int ioaddr = dev->base_addr; + + PRINTK3((KERN_DEBUG "%s: resetting receiver\n", dev->name)); + outw(0, IE_GP); /* Receive packet at start of buffer */ + outb(0xff, EDLC_RCLR); /* Clear all pending rcv interrupts */ + outb(0, IE_MMODE); /* Put EDLC to rcv buffer */ + outb(MM_EN_RCV, IE_MMODE); /* Enable rcv */ + outb(0xff, EDLC_RMASK); /* Enable all rcv interrupts */ +} + +static void ni5010_timeout(struct net_device *dev) +{ + printk(KERN_WARNING "%s: transmit timed out, %s?\n", dev->name, + tx_done(dev) ? "IRQ conflict" : "network cable problem"); + /* Try to restart the adaptor. */ + /* FIXME: Give it a real kick here */ + chipset_init(dev, 1); + dev->trans_start = jiffies; /* prevent tx timeout */ + netif_wake_queue(dev); +} + +static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev) +{ + int length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; + + PRINTK2((KERN_DEBUG "%s: entering ni5010_send_packet\n", dev->name)); + + /* + * Block sending + */ + + netif_stop_queue(dev); + hardware_send_packet(dev, (unsigned char *)skb->data, skb->len, length-skb->len); + dev_kfree_skb (skb); + return NETDEV_TX_OK; +} + +/* + * The typical workload of the driver: + * Handle the network interface interrupts. + */ +static irqreturn_t ni5010_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + struct ni5010_local *lp; + int ioaddr, status; + int xmit_was_error = 0; + + PRINTK2((KERN_DEBUG "%s: entering ni5010_interrupt\n", dev->name)); + + ioaddr = dev->base_addr; + lp = netdev_priv(dev); + + spin_lock(&lp->lock); + status = inb(IE_ISTAT); + PRINTK3((KERN_DEBUG "%s: IE_ISTAT = %#02x\n", dev->name, status)); + + if ((status & IS_R_INT) == 0) ni5010_rx(dev); + + if ((status & IS_X_INT) == 0) { + xmit_was_error = process_xmt_interrupt(dev); + } + + if ((status & IS_DMA_INT) == 0) { + PRINTK((KERN_DEBUG "%s: DMA complete (?)\n", dev->name)); + outb(0, IE_DMA_RST); /* Reset DMA int */ + } + + if (!xmit_was_error) + reset_receiver(dev); + spin_unlock(&lp->lock); + return IRQ_HANDLED; +} + + +static void dump_packet(void *buf, int len) +{ + int i; + + printk(KERN_DEBUG "Packet length = %#4x\n", len); + for (i = 0; i < len; i++){ + if (i % 16 == 0) printk(KERN_DEBUG "%#4.4x", i); + if (i % 2 == 0) printk(" "); + printk("%2.2x", ((unsigned char *)buf)[i]); + if (i % 16 == 15) printk("\n"); + } + printk("\n"); +} + +/* We have a good packet, get it out of the buffer. */ +static void ni5010_rx(struct net_device *dev) +{ + int ioaddr = dev->base_addr; + unsigned char rcv_stat; + struct sk_buff *skb; + int i_pkt_size; + + PRINTK2((KERN_DEBUG "%s: entering ni5010_rx()\n", dev->name)); + + rcv_stat = inb(EDLC_RSTAT); + PRINTK3((KERN_DEBUG "%s: EDLC_RSTAT = %#2x\n", dev->name, rcv_stat)); + + if ( (rcv_stat & RS_VALID_BITS) != RS_PKT_OK) { + PRINTK((KERN_INFO "%s: receive error.\n", dev->name)); + dev->stats.rx_errors++; + if (rcv_stat & RS_RUNT) dev->stats.rx_length_errors++; + if (rcv_stat & RS_ALIGN) dev->stats.rx_frame_errors++; + if (rcv_stat & RS_CRC_ERR) dev->stats.rx_crc_errors++; + if (rcv_stat & RS_OFLW) dev->stats.rx_fifo_errors++; + outb(0xff, EDLC_RCLR); /* Clear the interrupt */ + return; + } + + outb(0xff, EDLC_RCLR); /* Clear the interrupt */ + + i_pkt_size = inw(IE_RCNT); + if (i_pkt_size > ETH_FRAME_LEN || i_pkt_size < 10 ) { + PRINTK((KERN_DEBUG "%s: Packet size error, packet size = %#4.4x\n", + dev->name, i_pkt_size)); + dev->stats.rx_errors++; + dev->stats.rx_length_errors++; + return; + } + + /* Malloc up new buffer. */ + skb = dev_alloc_skb(i_pkt_size + 3); + if (skb == NULL) { + printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name); + dev->stats.rx_dropped++; + return; + } + + skb_reserve(skb, 2); + + /* Read packet into buffer */ + outb(MM_MUX, IE_MMODE); /* Rcv buffer to system bus */ + outw(0, IE_GP); /* Seek to beginning of packet */ + insb(IE_RBUF, skb_put(skb, i_pkt_size), i_pkt_size); + + if (NI5010_DEBUG >= 4) + dump_packet(skb->data, skb->len); + + skb->protocol = eth_type_trans(skb,dev); + netif_rx(skb); + dev->stats.rx_packets++; + dev->stats.rx_bytes += i_pkt_size; + + PRINTK2((KERN_DEBUG "%s: Received packet, size=%#4.4x\n", + dev->name, i_pkt_size)); +} + +static int process_xmt_interrupt(struct net_device *dev) +{ + struct ni5010_local *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + int xmit_stat; + + PRINTK2((KERN_DEBUG "%s: entering process_xmt_interrupt\n", dev->name)); + + xmit_stat = inb(EDLC_XSTAT); + PRINTK3((KERN_DEBUG "%s: EDLC_XSTAT = %2.2x\n", dev->name, xmit_stat)); + + outb(0, EDLC_XMASK); /* Disable xmit IRQ's */ + outb(0xff, EDLC_XCLR); /* Clear all pending xmit IRQ's */ + + if (xmit_stat & XS_COLL){ + PRINTK((KERN_DEBUG "%s: collision detected, retransmitting\n", + dev->name)); + outw(NI5010_BUFSIZE - lp->o_pkt_size, IE_GP); + /* outb(0, IE_MMODE); */ /* xmt buf on sysbus FIXME: needed ? */ + outb(MM_EN_XMT | MM_MUX, IE_MMODE); + outb(XM_ALL, EDLC_XMASK); /* Enable xmt IRQ's */ + dev->stats.collisions++; + return 1; + } + + /* FIXME: handle other xmt error conditions */ + + dev->stats.tx_packets++; + dev->stats.tx_bytes += lp->o_pkt_size; + netif_wake_queue(dev); + + PRINTK2((KERN_DEBUG "%s: sent packet, size=%#4.4x\n", + dev->name, lp->o_pkt_size)); + + return 0; +} + +/* The inverse routine to ni5010_open(). */ +static int ni5010_close(struct net_device *dev) +{ + int ioaddr = dev->base_addr; + + PRINTK2((KERN_DEBUG "%s: entering ni5010_close\n", dev->name)); +#ifdef JUMPERED_INTERRUPTS + free_irq(dev->irq, NULL); +#endif + /* Put card in held-RESET state */ + outb(0, IE_MMODE); + outb(RS_RESET, EDLC_RESET); + + netif_stop_queue(dev); + + PRINTK((KERN_DEBUG "%s: %s closed down\n", dev->name, boardname)); + return 0; + +} + +/* Set or clear the multicast filter for this adaptor. + num_addrs == -1 Promiscuous mode, receive all packets + num_addrs == 0 Normal mode, clear multicast list + num_addrs > 0 Multicast mode, receive normal and MC packets, and do + best-effort filtering. +*/ +static void ni5010_set_multicast_list(struct net_device *dev) +{ + short ioaddr = dev->base_addr; + + PRINTK2((KERN_DEBUG "%s: entering set_multicast_list\n", dev->name)); + + if (dev->flags & IFF_PROMISC || dev->flags & IFF_ALLMULTI || + !netdev_mc_empty(dev)) { + outb(RMD_PROMISC, EDLC_RMODE); /* Enable promiscuous mode */ + PRINTK((KERN_DEBUG "%s: Entering promiscuous mode\n", dev->name)); + } else { + PRINTK((KERN_DEBUG "%s: Entering broadcast mode\n", dev->name)); + outb(RMD_BROADCAST, EDLC_RMODE); /* Disable promiscuous mode, use normal mode */ + } +} + +static void hardware_send_packet(struct net_device *dev, char *buf, int length, int pad) +{ + struct ni5010_local *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + unsigned long flags; + unsigned int buf_offs; + + PRINTK2((KERN_DEBUG "%s: entering hardware_send_packet\n", dev->name)); + + if (length > ETH_FRAME_LEN) { + PRINTK((KERN_WARNING "%s: packet too large, not possible\n", + dev->name)); + return; + } + + if (NI5010_DEBUG) ni5010_show_registers(dev); + + if (inb(IE_ISTAT) & IS_EN_XMT) { + PRINTK((KERN_WARNING "%s: sending packet while already transmitting, not possible\n", + dev->name)); + return; + } + + if (NI5010_DEBUG > 3) dump_packet(buf, length); + + buf_offs = NI5010_BUFSIZE - length - pad; + + spin_lock_irqsave(&lp->lock, flags); + lp->o_pkt_size = length + pad; + + outb(0, EDLC_RMASK); /* Mask all receive interrupts */ + outb(0, IE_MMODE); /* Put Xmit buffer on system bus */ + outb(0xff, EDLC_RCLR); /* Clear out pending rcv interrupts */ + + outw(buf_offs, IE_GP); /* Point GP at start of packet */ + outsb(IE_XBUF, buf, length); /* Put data in buffer */ + while(pad--) + outb(0, IE_XBUF); + + outw(buf_offs, IE_GP); /* Rewrite where packet starts */ + + /* should work without that outb() (Crynwr used it) */ + /*outb(MM_MUX, IE_MMODE);*/ /* Xmt buffer to EDLC bus */ + outb(MM_EN_XMT | MM_MUX, IE_MMODE); /* Begin transmission */ + outb(XM_ALL, EDLC_XMASK); /* Cause interrupt after completion or fail */ + + spin_unlock_irqrestore(&lp->lock, flags); + + netif_wake_queue(dev); + + if (NI5010_DEBUG) ni5010_show_registers(dev); +} + +static void chipset_init(struct net_device *dev, int startp) +{ + /* FIXME: Move some stuff here */ + PRINTK3((KERN_DEBUG "%s: doing NOTHING in chipset_init\n", dev->name)); +} + +static void ni5010_show_registers(struct net_device *dev) +{ + int ioaddr = dev->base_addr; + + PRINTK3((KERN_DEBUG "%s: XSTAT %#2.2x\n", dev->name, inb(EDLC_XSTAT))); + PRINTK3((KERN_DEBUG "%s: XMASK %#2.2x\n", dev->name, inb(EDLC_XMASK))); + PRINTK3((KERN_DEBUG "%s: RSTAT %#2.2x\n", dev->name, inb(EDLC_RSTAT))); + PRINTK3((KERN_DEBUG "%s: RMASK %#2.2x\n", dev->name, inb(EDLC_RMASK))); + PRINTK3((KERN_DEBUG "%s: RMODE %#2.2x\n", dev->name, inb(EDLC_RMODE))); + PRINTK3((KERN_DEBUG "%s: XMODE %#2.2x\n", dev->name, inb(EDLC_XMODE))); + PRINTK3((KERN_DEBUG "%s: ISTAT %#2.2x\n", dev->name, inb(IE_ISTAT))); +} + +#ifdef MODULE +static struct net_device *dev_ni5010; + +module_param(io, int, 0); +module_param(irq, int, 0); +MODULE_PARM_DESC(io, "ni5010 I/O base address"); +MODULE_PARM_DESC(irq, "ni5010 IRQ number"); + +static int __init ni5010_init_module(void) +{ + PRINTK2((KERN_DEBUG "%s: entering init_module\n", boardname)); + /* + if(io <= 0 || irq == 0){ + printk(KERN_WARNING "%s: Autoprobing not allowed for modules.\n", boardname); + printk(KERN_WARNING "%s: Set symbols 'io' and 'irq'\n", boardname); + return -EINVAL; + } + */ + if (io <= 0){ + printk(KERN_WARNING "%s: Autoprobing for modules is hazardous, trying anyway..\n", boardname); + } + + PRINTK2((KERN_DEBUG "%s: init_module irq=%#2x, io=%#3x\n", boardname, irq, io)); + dev_ni5010 = ni5010_probe(-1); + if (IS_ERR(dev_ni5010)) + return PTR_ERR(dev_ni5010); + return 0; +} + +static void __exit ni5010_cleanup_module(void) +{ + PRINTK2((KERN_DEBUG "%s: entering cleanup_module\n", boardname)); + unregister_netdev(dev_ni5010); + release_region(dev_ni5010->base_addr, NI5010_IO_EXTENT); + free_netdev(dev_ni5010); +} +module_init(ni5010_init_module); +module_exit(ni5010_cleanup_module); +#endif /* MODULE */ +MODULE_LICENSE("GPL"); |