diff options
Diffstat (limited to 'drivers/net/ariadne.c')
| -rw-r--r-- | drivers/net/ariadne.c | 1267 |
1 files changed, 601 insertions, 666 deletions
diff --git a/drivers/net/ariadne.c b/drivers/net/ariadne.c index b7f45cd756a..7ed78f40204 100644 --- a/drivers/net/ariadne.c +++ b/drivers/net/ariadne.c @@ -34,6 +34,9 @@ * - an MC68230 Parallel Interface/Timer configured as 2 parallel ports */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +/*#define DEBUG*/ + #include <linux/module.h> #include <linux/stddef.h> #include <linux/kernel.h> @@ -54,802 +57,734 @@ #include "ariadne.h" - #ifdef ARIADNE_DEBUG int ariadne_debug = ARIADNE_DEBUG; #else int ariadne_debug = 1; #endif +/* Macros to Fix Endianness problems */ - /* - * Macros to Fix Endianness problems - */ - - /* Swap the Bytes in a WORD */ -#define swapw(x) (((x>>8)&0x00ff)|((x<<8)&0xff00)) - /* Get the Low BYTE in a WORD */ -#define lowb(x) (x&0xff) - /* Get the Swapped High WORD in a LONG */ -#define swhighw(x) ((((x)>>8)&0xff00)|(((x)>>24)&0x00ff)) - /* Get the Swapped Low WORD in a LONG */ -#define swloww(x) ((((x)<<8)&0xff00)|(((x)>>8)&0x00ff)) +/* Swap the Bytes in a WORD */ +#define swapw(x) (((x >> 8) & 0x00ff) | ((x << 8) & 0xff00)) +/* Get the Low BYTE in a WORD */ +#define lowb(x) (x & 0xff) +/* Get the Swapped High WORD in a LONG */ +#define swhighw(x) ((((x) >> 8) & 0xff00) | (((x) >> 24) & 0x00ff)) +/* Get the Swapped Low WORD in a LONG */ +#define swloww(x) ((((x) << 8) & 0xff00) | (((x) >> 8) & 0x00ff)) - - /* - * Transmit/Receive Ring Definitions - */ +/* Transmit/Receive Ring Definitions */ #define TX_RING_SIZE 5 #define RX_RING_SIZE 16 #define PKT_BUF_SIZE 1520 - - /* - * Private Device Data - */ +/* Private Device Data */ struct ariadne_private { - volatile struct TDRE *tx_ring[TX_RING_SIZE]; - volatile struct RDRE *rx_ring[RX_RING_SIZE]; - volatile u_short *tx_buff[TX_RING_SIZE]; - volatile u_short *rx_buff[RX_RING_SIZE]; - int cur_tx, cur_rx; /* The next free ring entry */ - int dirty_tx; /* The ring entries to be free()ed. */ - char tx_full; + volatile struct TDRE *tx_ring[TX_RING_SIZE]; + volatile struct RDRE *rx_ring[RX_RING_SIZE]; + volatile u_short *tx_buff[TX_RING_SIZE]; + volatile u_short *rx_buff[RX_RING_SIZE]; + int cur_tx, cur_rx; /* The next free ring entry */ + int dirty_tx; /* The ring entries to be free()ed */ + char tx_full; }; - - /* - * Structure Created in the Ariadne's RAM Buffer - */ +/* Structure Created in the Ariadne's RAM Buffer */ struct lancedata { - struct TDRE tx_ring[TX_RING_SIZE]; - struct RDRE rx_ring[RX_RING_SIZE]; - u_short tx_buff[TX_RING_SIZE][PKT_BUF_SIZE/sizeof(u_short)]; - u_short rx_buff[RX_RING_SIZE][PKT_BUF_SIZE/sizeof(u_short)]; + struct TDRE tx_ring[TX_RING_SIZE]; + struct RDRE rx_ring[RX_RING_SIZE]; + u_short tx_buff[TX_RING_SIZE][PKT_BUF_SIZE / sizeof(u_short)]; + u_short rx_buff[RX_RING_SIZE][PKT_BUF_SIZE / sizeof(u_short)]; }; -static int ariadne_open(struct net_device *dev); -static void ariadne_init_ring(struct net_device *dev); -static netdev_tx_t ariadne_start_xmit(struct sk_buff *skb, - struct net_device *dev); -static void ariadne_tx_timeout(struct net_device *dev); -static int ariadne_rx(struct net_device *dev); -static void ariadne_reset(struct net_device *dev); -static irqreturn_t ariadne_interrupt(int irq, void *data); -static int ariadne_close(struct net_device *dev); -static struct net_device_stats *ariadne_get_stats(struct net_device *dev); -static void set_multicast_list(struct net_device *dev); - - static void memcpyw(volatile u_short *dest, u_short *src, int len) { - while (len >= 2) { - *(dest++) = *(src++); - len -= 2; - } - if (len == 1) - *dest = (*(u_char *)src)<<8; + while (len >= 2) { + *(dest++) = *(src++); + len -= 2; + } + if (len == 1) + *dest = (*(u_char *)src) << 8; } +static void ariadne_init_ring(struct net_device *dev) +{ + struct ariadne_private *priv = netdev_priv(dev); + volatile struct lancedata *lancedata = (struct lancedata *)dev->mem_start; + int i; -static int __devinit ariadne_init_one(struct zorro_dev *z, - const struct zorro_device_id *ent); -static void __devexit ariadne_remove_one(struct zorro_dev *z); - - -static struct zorro_device_id ariadne_zorro_tbl[] __devinitdata = { - { ZORRO_PROD_VILLAGE_TRONIC_ARIADNE }, - { 0 } -}; -MODULE_DEVICE_TABLE(zorro, ariadne_zorro_tbl); + netif_stop_queue(dev); -static struct zorro_driver ariadne_driver = { - .name = "ariadne", - .id_table = ariadne_zorro_tbl, - .probe = ariadne_init_one, - .remove = __devexit_p(ariadne_remove_one), -}; + priv->tx_full = 0; + priv->cur_rx = priv->cur_tx = 0; + priv->dirty_tx = 0; + + /* Set up TX Ring */ + for (i = 0; i < TX_RING_SIZE; i++) { + volatile struct TDRE *t = &lancedata->tx_ring[i]; + t->TMD0 = swloww(ARIADNE_RAM + + offsetof(struct lancedata, tx_buff[i])); + t->TMD1 = swhighw(ARIADNE_RAM + + offsetof(struct lancedata, tx_buff[i])) | + TF_STP | TF_ENP; + t->TMD2 = swapw((u_short)-PKT_BUF_SIZE); + t->TMD3 = 0; + priv->tx_ring[i] = &lancedata->tx_ring[i]; + priv->tx_buff[i] = lancedata->tx_buff[i]; + netdev_dbg(dev, "TX Entry %2d at %p, Buf at %p\n", + i, &lancedata->tx_ring[i], lancedata->tx_buff[i]); + } -static const struct net_device_ops ariadne_netdev_ops = { - .ndo_open = ariadne_open, - .ndo_stop = ariadne_close, - .ndo_start_xmit = ariadne_start_xmit, - .ndo_tx_timeout = ariadne_tx_timeout, - .ndo_get_stats = ariadne_get_stats, - .ndo_set_multicast_list = set_multicast_list, - .ndo_validate_addr = eth_validate_addr, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, -}; + /* Set up RX Ring */ + for (i = 0; i < RX_RING_SIZE; i++) { + volatile struct RDRE *r = &lancedata->rx_ring[i]; + r->RMD0 = swloww(ARIADNE_RAM + + offsetof(struct lancedata, rx_buff[i])); + r->RMD1 = swhighw(ARIADNE_RAM + + offsetof(struct lancedata, rx_buff[i])) | + RF_OWN; + r->RMD2 = swapw((u_short)-PKT_BUF_SIZE); + r->RMD3 = 0x0000; + priv->rx_ring[i] = &lancedata->rx_ring[i]; + priv->rx_buff[i] = lancedata->rx_buff[i]; + netdev_dbg(dev, "RX Entry %2d at %p, Buf at %p\n", + i, &lancedata->rx_ring[i], lancedata->rx_buff[i]); + } +} -static int __devinit ariadne_init_one(struct zorro_dev *z, - const struct zorro_device_id *ent) +static int ariadne_rx(struct net_device *dev) { - unsigned long board = z->resource.start; - unsigned long base_addr = board+ARIADNE_LANCE; - unsigned long mem_start = board+ARIADNE_RAM; - struct resource *r1, *r2; - struct net_device *dev; - struct ariadne_private *priv; - int err; - - r1 = request_mem_region(base_addr, sizeof(struct Am79C960), "Am79C960"); - if (!r1) - return -EBUSY; - r2 = request_mem_region(mem_start, ARIADNE_RAM_SIZE, "RAM"); - if (!r2) { - release_mem_region(base_addr, sizeof(struct Am79C960)); - return -EBUSY; - } - - dev = alloc_etherdev(sizeof(struct ariadne_private)); - if (dev == NULL) { - release_mem_region(base_addr, sizeof(struct Am79C960)); - release_mem_region(mem_start, ARIADNE_RAM_SIZE); - return -ENOMEM; - } - - priv = netdev_priv(dev); - - r1->name = dev->name; - r2->name = dev->name; - - dev->dev_addr[0] = 0x00; - dev->dev_addr[1] = 0x60; - dev->dev_addr[2] = 0x30; - dev->dev_addr[3] = (z->rom.er_SerialNumber>>16) & 0xff; - dev->dev_addr[4] = (z->rom.er_SerialNumber>>8) & 0xff; - dev->dev_addr[5] = z->rom.er_SerialNumber & 0xff; - dev->base_addr = ZTWO_VADDR(base_addr); - dev->mem_start = ZTWO_VADDR(mem_start); - dev->mem_end = dev->mem_start+ARIADNE_RAM_SIZE; - - dev->netdev_ops = &ariadne_netdev_ops; - dev->watchdog_timeo = 5*HZ; - - err = register_netdev(dev); - if (err) { - release_mem_region(base_addr, sizeof(struct Am79C960)); - release_mem_region(mem_start, ARIADNE_RAM_SIZE); - free_netdev(dev); - return err; - } - zorro_set_drvdata(z, dev); + struct ariadne_private *priv = netdev_priv(dev); + int entry = priv->cur_rx % RX_RING_SIZE; + int i; - printk(KERN_INFO "%s: Ariadne at 0x%08lx, Ethernet Address %pM\n", - dev->name, board, dev->dev_addr); + /* If we own the next entry, it's a new packet. Send it up */ + while (!(lowb(priv->rx_ring[entry]->RMD1) & RF_OWN)) { + int status = lowb(priv->rx_ring[entry]->RMD1); + + if (status != (RF_STP | RF_ENP)) { /* There was an error */ + /* There is a tricky error noted by + * John Murphy <murf@perftech.com> to Russ Nelson: + * Even with full-sized buffers it's possible for a + * jabber packet to use two buffers, with only the + * last correctly noting the error + */ + /* Only count a general error at the end of a packet */ + if (status & RF_ENP) + dev->stats.rx_errors++; + if (status & RF_FRAM) + dev->stats.rx_frame_errors++; + if (status & RF_OFLO) + dev->stats.rx_over_errors++; + if (status & RF_CRC) + dev->stats.rx_crc_errors++; + if (status & RF_BUFF) + dev->stats.rx_fifo_errors++; + priv->rx_ring[entry]->RMD1 &= 0xff00 | RF_STP | RF_ENP; + } else { + /* Malloc up new buffer, compatible with net-3 */ + short pkt_len = swapw(priv->rx_ring[entry]->RMD3); + struct sk_buff *skb; + + skb = dev_alloc_skb(pkt_len + 2); + if (skb == NULL) { + netdev_warn(dev, "Memory squeeze, deferring packet\n"); + for (i = 0; i < RX_RING_SIZE; i++) + if (lowb(priv->rx_ring[(entry + i) % RX_RING_SIZE]->RMD1) & RF_OWN) + break; + + if (i > RX_RING_SIZE - 2) { + dev->stats.rx_dropped++; + priv->rx_ring[entry]->RMD1 |= RF_OWN; + priv->cur_rx++; + } + break; + } + + + skb_reserve(skb, 2); /* 16 byte align */ + skb_put(skb, pkt_len); /* Make room */ + skb_copy_to_linear_data(skb, + (const void *)priv->rx_buff[entry], + pkt_len); + skb->protocol = eth_type_trans(skb, dev); + netdev_dbg(dev, "RX pkt type 0x%04x from %pM to %pM data 0x%08x len %d\n", + ((u_short *)skb->data)[6], + skb->data + 6, skb->data, + (int)skb->data, (int)skb->len); + + netif_rx(skb); + dev->stats.rx_packets++; + dev->stats.rx_bytes += pkt_len; + } - return 0; -} + priv->rx_ring[entry]->RMD1 |= RF_OWN; + entry = (++priv->cur_rx) % RX_RING_SIZE; + } + priv->cur_rx = priv->cur_rx % RX_RING_SIZE; -static int ariadne_open(struct net_device *dev) -{ - volatile struct Am79C960 *lance = (struct Am79C960*)dev->base_addr; - u_short in; - u_long version; - int i; - - /* Reset the LANCE */ - in = lance->Reset; - - /* Stop the LANCE */ - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = STOP; - - /* Check the LANCE version */ - lance->RAP = CSR88; /* Chip ID */ - version = swapw(lance->RDP); - lance->RAP = CSR89; /* Chip ID */ - version |= swapw(lance->RDP)<<16; - if ((version & 0x00000fff) != 0x00000003) { - printk(KERN_WARNING "ariadne_open: Couldn't find AMD Ethernet Chip\n"); - return -EAGAIN; - } - if ((version & 0x0ffff000) != 0x00003000) { - printk(KERN_WARNING "ariadne_open: Couldn't find Am79C960 (Wrong part " - "number = %ld)\n", (version & 0x0ffff000)>>12); - return -EAGAIN; - } -#if 0 - printk(KERN_DEBUG "ariadne_open: Am79C960 (PCnet-ISA) Revision %ld\n", - (version & 0xf0000000)>>28); -#endif + /* We should check that at least two ring entries are free. + * If not, we should free one and mark stats->rx_dropped++ + */ - ariadne_init_ring(dev); - - /* Miscellaneous Stuff */ - lance->RAP = CSR3; /* Interrupt Masks and Deferral Control */ - lance->RDP = 0x0000; - lance->RAP = CSR4; /* Test and Features Control */ - lance->RDP = DPOLL|APAD_XMT|MFCOM|RCVCCOM|TXSTRTM|JABM; - - /* Set the Multicast Table */ - lance->RAP = CSR8; /* Logical Address Filter, LADRF[15:0] */ - lance->RDP = 0x0000; - lance->RAP = CSR9; /* Logical Address Filter, LADRF[31:16] */ - lance->RDP = 0x0000; - lance->RAP = CSR10; /* Logical Address Filter, LADRF[47:32] */ - lance->RDP = 0x0000; - lance->RAP = CSR11; /* Logical Address Filter, LADRF[63:48] */ - lance->RDP = 0x0000; - - /* Set the Ethernet Hardware Address */ - lance->RAP = CSR12; /* Physical Address Register, PADR[15:0] */ - lance->RDP = ((u_short *)&dev->dev_addr[0])[0]; - lance->RAP = CSR13; /* Physical Address Register, PADR[31:16] */ - lance->RDP = ((u_short *)&dev->dev_addr[0])[1]; - lance->RAP = CSR14; /* Physical Address Register, PADR[47:32] */ - lance->RDP = ((u_short *)&dev->dev_addr[0])[2]; - - /* Set the Init Block Mode */ - lance->RAP = CSR15; /* Mode Register */ - lance->RDP = 0x0000; - - /* Set the Transmit Descriptor Ring Pointer */ - lance->RAP = CSR30; /* Base Address of Transmit Ring */ - lance->RDP = swloww(ARIADNE_RAM+offsetof(struct lancedata, tx_ring)); - lance->RAP = CSR31; /* Base Address of transmit Ring */ - lance->RDP = swhighw(ARIADNE_RAM+offsetof(struct lancedata, tx_ring)); - - /* Set the Receive Descriptor Ring Pointer */ - lance->RAP = CSR24; /* Base Address of Receive Ring */ - lance->RDP = swloww(ARIADNE_RAM+offsetof(struct lancedata, rx_ring)); - lance->RAP = CSR25; /* Base Address of Receive Ring */ - lance->RDP = swhighw(ARIADNE_RAM+offsetof(struct lancedata, rx_ring)); - - /* Set the Number of RX and TX Ring Entries */ - lance->RAP = CSR76; /* Receive Ring Length */ - lance->RDP = swapw(((u_short)-RX_RING_SIZE)); - lance->RAP = CSR78; /* Transmit Ring Length */ - lance->RDP = swapw(((u_short)-TX_RING_SIZE)); - - /* Enable Media Interface Port Auto Select (10BASE-2/10BASE-T) */ - lance->RAP = ISACSR2; /* Miscellaneous Configuration */ - lance->IDP = ASEL; - - /* LED Control */ - lance->RAP = ISACSR5; /* LED1 Status */ - lance->IDP = PSE|XMTE; - lance->RAP = ISACSR6; /* LED2 Status */ - lance->IDP = PSE|COLE; - lance->RAP = ISACSR7; /* LED3 Status */ - lance->IDP = PSE|RCVE; - - netif_start_queue(dev); - - i = request_irq(IRQ_AMIGA_PORTS, ariadne_interrupt, IRQF_SHARED, - dev->name, dev); - if (i) return i; - - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = INEA|STRT; - - return 0; + return 0; } - -static void ariadne_init_ring(struct net_device *dev) +static irqreturn_t ariadne_interrupt(int irq, void *data) { - struct ariadne_private *priv = netdev_priv(dev); - volatile struct lancedata *lancedata = (struct lancedata *)dev->mem_start; - int i; - - netif_stop_queue(dev); - - priv->tx_full = 0; - priv->cur_rx = priv->cur_tx = 0; - priv->dirty_tx = 0; - - /* Set up TX Ring */ - for (i = 0; i < TX_RING_SIZE; i++) { - volatile struct TDRE *t = &lancedata->tx_ring[i]; - t->TMD0 = swloww(ARIADNE_RAM+offsetof(struct lancedata, tx_buff[i])); - t->TMD1 = swhighw(ARIADNE_RAM+offsetof(struct lancedata, tx_buff[i])) | - TF_STP | TF_ENP; - t->TMD2 = swapw((u_short)-PKT_BUF_SIZE); - t->TMD3 = 0; - priv->tx_ring[i] = &lancedata->tx_ring[i]; - priv->tx_buff[i] = lancedata->tx_buff[i]; -#if 0 - printk(KERN_DEBUG "TX Entry %2d at %p, Buf at %p\n", i, - &lancedata->tx_ring[i], lancedata->tx_buff[i]); -#endif - } - - /* Set up RX Ring */ - for (i = 0; i < RX_RING_SIZE; i++) { - volatile struct RDRE *r = &lancedata->rx_ring[i]; - r->RMD0 = swloww(ARIADNE_RAM+offsetof(struct lancedata, rx_buff[i])); - r->RMD1 = swhighw(ARIADNE_RAM+offsetof(struct lancedata, rx_buff[i])) | - RF_OWN; - r->RMD2 = swapw((u_short)-PKT_BUF_SIZE); - r->RMD3 = 0x0000; - priv->rx_ring[i] = &lancedata->rx_ring[i]; - priv->rx_buff[i] = lancedata->rx_buff[i]; -#if 0 - printk(KERN_DEBUG "RX Entry %2d at %p, Buf at %p\n", i, - &lancedata->rx_ring[i], lancedata->rx_buff[i]); + struct net_device *dev = (struct net_device *)data; + volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; + struct ariadne_private *priv; + int csr0, boguscnt; + int handled = 0; + + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + + if (!(lance->RDP & INTR)) /* Check if any interrupt has been */ + return IRQ_NONE; /* generated by the board */ + + priv = netdev_priv(dev); + + boguscnt = 10; + while ((csr0 = lance->RDP) & (ERR | RINT | TINT) && --boguscnt >= 0) { + /* Acknowledge all of the current interrupt sources ASAP */ + lance->RDP = csr0 & ~(INEA | TDMD | STOP | STRT | INIT); + +#ifdef DEBUG + if (ariadne_debug > 5) { + netdev_dbg(dev, "interrupt csr0=%#02x new csr=%#02x [", + csr0, lance->RDP); + if (csr0 & INTR) + pr_cont(" INTR"); + if (csr0 & INEA) + pr_cont(" INEA"); + if (csr0 & RXON) + pr_cont(" RXON"); + if (csr0 & TXON) + pr_cont(" TXON"); + if (csr0 & TDMD) + pr_cont(" TDMD"); + if (csr0 & STOP) + pr_cont(" STOP"); + if (csr0 & STRT) + pr_cont(" STRT"); + if (csr0 & INIT) + pr_cont(" INIT"); + if (csr0 & ERR) + pr_cont(" ERR"); + if (csr0 & BABL) + pr_cont(" BABL"); + if (csr0 & CERR) + pr_cont(" CERR"); + if (csr0 & MISS) + pr_cont(" MISS"); + if (csr0 & MERR) + pr_cont(" MERR"); + if (csr0 & RINT) + pr_cont(" RINT"); + if (csr0 & TINT) + pr_cont(" TINT"); + if (csr0 & IDON) + pr_cont(" IDON"); + pr_cont(" ]\n"); + } #endif - } -} + if (csr0 & RINT) { /* Rx interrupt */ + handled = 1; + ariadne_rx(dev); + } -static int ariadne_close(struct net_device *dev) -{ - volatile struct Am79C960 *lance = (struct Am79C960*)dev->base_addr; + if (csr0 & TINT) { /* Tx-done interrupt */ + int dirty_tx = priv->dirty_tx; + + handled = 1; + while (dirty_tx < priv->cur_tx) { + int entry = dirty_tx % TX_RING_SIZE; + int status = lowb(priv->tx_ring[entry]->TMD1); + + if (status & TF_OWN) + break; /* It still hasn't been Txed */ + + priv->tx_ring[entry]->TMD1 &= 0xff00; + + if (status & TF_ERR) { + /* There was an major error, log it */ + int err_status = priv->tx_ring[entry]->TMD3; + dev->stats.tx_errors++; + if (err_status & EF_RTRY) + dev->stats.tx_aborted_errors++; + if (err_status & EF_LCAR) + dev->stats.tx_carrier_errors++; + if (err_status & EF_LCOL) + dev->stats.tx_window_errors++; + if (err_status & EF_UFLO) { + /* Ackk! On FIFO errors the Tx unit is turned off! */ + dev->stats.tx_fifo_errors++; + /* Remove this verbosity later! */ + netdev_err(dev, "Tx FIFO error! Status %04x\n", + csr0); + /* Restart the chip */ + lance->RDP = STRT; + } + } else { + if (status & (TF_MORE | TF_ONE)) + dev->stats.collisions++; + dev->stats.tx_packets++; + } + dirty_tx++; + } - netif_stop_queue(dev); +#ifndef final_version + if (priv->cur_tx - dirty_tx >= TX_RING_SIZE) { + netdev_err(dev, "out-of-sync dirty pointer, %d vs. %d, full=%d\n", + dirty_tx, priv->cur_tx, + priv->tx_full); + dirty_tx += TX_RING_SIZE; + } +#endif - lance->RAP = CSR112; /* Missed Frame Count */ - dev->stats.rx_missed_errors = swapw(lance->RDP); - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + if (priv->tx_full && netif_queue_stopped(dev) && + dirty_tx > priv->cur_tx - TX_RING_SIZE + 2) { + /* The ring is no longer full */ + priv->tx_full = 0; + netif_wake_queue(dev); + } - if (ariadne_debug > 1) { - printk(KERN_DEBUG "%s: Shutting down ethercard, status was %2.2x.\n", - dev->name, lance->RDP); - printk(KERN_DEBUG "%s: %lu packets missed\n", dev->name, - dev->stats.rx_missed_errors); - } + priv->dirty_tx = dirty_tx; + } - /* We stop the LANCE here -- it occasionally polls memory if we don't. */ - lance->RDP = STOP; + /* Log misc errors */ + if (csr0 & BABL) { + handled = 1; + dev->stats.tx_errors++; /* Tx babble */ + } + if (csr0 & MISS) { + handled = 1; + dev->stats.rx_errors++; /* Missed a Rx frame */ + } + if (csr0 & MERR) { + handled = 1; + netdev_err(dev, "Bus master arbitration failure, status %04x\n", + csr0); + /* Restart the chip */ + lance->RDP = STRT; + } + } - free_irq(IRQ_AMIGA_PORTS, dev); + /* Clear any other interrupt, and set interrupt enable */ + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + lance->RDP = INEA | BABL | CERR | MISS | MERR | IDON; - return 0; -} + if (ariadne_debug > 4) + netdev_dbg(dev, "exiting interrupt, csr%d=%#04x\n", + lance->RAP, lance->RDP); + return IRQ_RETVAL(handled); +} -static inline void ariadne_reset(struct net_device *dev) +static int ariadne_open(struct net_device *dev) { - volatile struct Am79C960 *lance = (struct Am79C960*)dev->base_addr; - - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = STOP; - ariadne_init_ring(dev); - lance->RDP = INEA|STRT; - netif_start_queue(dev); -} + volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; + u_short in; + u_long version; + int i; + /* Reset the LANCE */ + in = lance->Reset; + + /* Stop the LANCE */ + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + lance->RDP = STOP; + + /* Check the LANCE version */ + lance->RAP = CSR88; /* Chip ID */ + version = swapw(lance->RDP); + lance->RAP = CSR89; /* Chip ID */ + version |= swapw(lance->RDP) << 16; + if ((version & 0x00000fff) != 0x00000003) { + pr_warn("Couldn't find AMD Ethernet Chip\n"); + return -EAGAIN; + } + if ((version & 0x0ffff000) != 0x00003000) { + pr_warn("Couldn't find Am79C960 (Wrong part number = %ld)\n", + (version & 0x0ffff000) >> 12); + return -EAGAIN; + } -static irqreturn_t ariadne_interrupt(int irq, void *data) -{ - struct net_device *dev = (struct net_device *)data; - volatile struct Am79C960 *lance = (struct Am79C960*)dev->base_addr; - struct ariadne_private *priv; - int csr0, boguscnt; - int handled = 0; + netdev_dbg(dev, "Am79C960 (PCnet-ISA) Revision %ld\n", + (version & 0xf0000000) >> 28); - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + ariadne_init_ring(dev); - if (!(lance->RDP & INTR)) /* Check if any interrupt has been */ - return IRQ_NONE; /* generated by the board. */ + /* Miscellaneous Stuff */ + lance->RAP = CSR3; /* Interrupt Masks and Deferral Control */ + lance->RDP = 0x0000; + lance->RAP = CSR4; /* Test and Features Control */ + lance->RDP = DPOLL | APAD_XMT | MFCOM | RCVCCOM | TXSTRTM | JABM; - priv = netdev_priv(dev); + /* Set the Multicast Table */ + lance->RAP = CSR8; /* Logical Address Filter, LADRF[15:0] */ + lance->RDP = 0x0000; + lance->RAP = CSR9; /* Logical Address Filter, LADRF[31:16] */ + lance->RDP = 0x0000; + lance->RAP = CSR10; /* Logical Address Filter, LADRF[47:32] */ + lance->RDP = 0x0000; + lance->RAP = CSR11; /* Logical Address Filter, LADRF[63:48] */ + lance->RDP = 0x0000; - boguscnt = 10; - while ((csr0 = lance->RDP) & (ERR|RINT|TINT) && --boguscnt >= 0) { - /* Acknowledge all of the current interrupt sources ASAP. */ - lance->RDP = csr0 & ~(INEA|TDMD|STOP|STRT|INIT); + /* Set the Ethernet Hardware Address */ + lance->RAP = CSR12; /* Physical Address Register, PADR[15:0] */ + lance->RDP = ((u_short *)&dev->dev_addr[0])[0]; + lance->RAP = CSR13; /* Physical Address Register, PADR[31:16] */ + lance->RDP = ((u_short *)&dev->dev_addr[0])[1]; + lance->RAP = CSR14; /* Physical Address Register, PADR[47:32] */ + lance->RDP = ((u_short *)&dev->dev_addr[0])[2]; -#if 0 - if (ariadne_debug > 5) { - printk(KERN_DEBUG "%s: interrupt csr0=%#2.2x new csr=%#2.2x.", - dev->name, csr0, lance->RDP); - printk("["); - if (csr0 & INTR) - printk(" INTR"); - if (csr0 & INEA) - printk(" INEA"); - if (csr0 & RXON) - printk(" RXON"); - if (csr0 & TXON) - printk(" TXON"); - if (csr0 & TDMD) - printk(" TDMD"); - if (csr0 & STOP) - printk(" STOP"); - if (csr0 & STRT) - printk(" STRT"); - if (csr0 & INIT) - printk(" INIT"); - if (csr0 & ERR) - printk(" ERR"); - if (csr0 & BABL) - printk(" BABL"); - if (csr0 & CERR) - printk(" CERR"); - if (csr0 & MISS) - printk(" MISS"); - if (csr0 & MERR) - printk(" MERR"); - if (csr0 & RINT) - printk(" RINT"); - if (csr0 & TINT) - printk(" TINT"); - if (csr0 & IDON) - printk(" IDON"); - printk(" ]\n"); - } -#endif + /* Set the Init Block Mode */ + lance->RAP = CSR15; /* Mode Register */ + lance->RDP = 0x0000; - if (csr0 & RINT) { /* Rx interrupt */ - handled = 1; - ariadne_rx(dev); - } + /* Set the Transmit Descriptor Ring Pointer */ + lance->RAP = CSR30; /* Base Address of Transmit Ring */ + lance->RDP = swloww(ARIADNE_RAM + offsetof(struct lancedata, tx_ring)); + lance->RAP = CSR31; /* Base Address of transmit Ring */ + lance->RDP = swhighw(ARIADNE_RAM + offsetof(struct lancedata, tx_ring)); + + /* Set the Receive Descriptor Ring Pointer */ + lance->RAP = CSR24; /* Base Address of Receive Ring */ + lance->RDP = swloww(ARIADNE_RAM + offsetof(struct lancedata, rx_ring)); + lance->RAP = CSR25; /* Base Address of Receive Ring */ + lance->RDP = swhighw(ARIADNE_RAM + offsetof(struct lancedata, rx_ring)); + + /* Set the Number of RX and TX Ring Entries */ + lance->RAP = CSR76; /* Receive Ring Length */ + lance->RDP = swapw(((u_short)-RX_RING_SIZE)); + lance->RAP = CSR78; /* Transmit Ring Length */ + lance->RDP = swapw(((u_short)-TX_RING_SIZE)); + + /* Enable Media Interface Port Auto Select (10BASE-2/10BASE-T) */ + lance->RAP = ISACSR2; /* Miscellaneous Configuration */ + lance->IDP = ASEL; + + /* LED Control */ + lance->RAP = ISACSR5; /* LED1 Status */ + lance->IDP = PSE|XMTE; + lance->RAP = ISACSR6; /* LED2 Status */ + lance->IDP = PSE|COLE; + lance->RAP = ISACSR7; /* LED3 Status */ + lance->IDP = PSE|RCVE; + + netif_start_queue(dev); + + i = request_irq(IRQ_AMIGA_PORTS, ariadne_interrupt, IRQF_SHARED, + dev->name, dev); + if (i) + return i; + + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + lance->RDP = INEA | STRT; + + return 0; +} - if (csr0 & TINT) { /* Tx-done interrupt */ - int dirty_tx = priv->dirty_tx; - - handled = 1; - while (dirty_tx < priv->cur_tx) { - int entry = dirty_tx % TX_RING_SIZE; - int status = lowb(priv->tx_ring[entry]->TMD1); - - if (status & TF_OWN) - break; /* It still hasn't been Txed */ - - priv->tx_ring[entry]->TMD1 &= 0xff00; - - if (status & TF_ERR) { - /* There was an major error, log it. */ - int err_status = priv->tx_ring[entry]->TMD3; - dev->stats.tx_errors++; - if (err_status & EF_RTRY) - dev->stats.tx_aborted_errors++; - if (err_status & EF_LCAR) - dev->stats.tx_carrier_errors++; - if (err_status & EF_LCOL) - dev->stats.tx_window_errors++; - if (err_status & EF_UFLO) { - /* Ackk! On FIFO errors the Tx unit is turned off! */ - dev->stats.tx_fifo_errors++; - /* Remove this verbosity later! */ - printk(KERN_ERR "%s: Tx FIFO error! Status %4.4x.\n", - dev->name, csr0); - /* Restart the chip. */ - lance->RDP = STRT; - } - } else { - if (status & (TF_MORE|TF_ONE)) - dev->stats.collisions++; - dev->stats.tx_packets++; - } - dirty_tx++; - } +static int ariadne_close(struct net_device *dev) +{ + volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; -#ifndef final_version - if (priv->cur_tx - dirty_tx >= TX_RING_SIZE) { - printk(KERN_ERR "out-of-sync dirty pointer, %d vs. %d, " - "full=%d.\n", dirty_tx, priv->cur_tx, priv->tx_full); - dirty_tx += TX_RING_SIZE; - } -#endif + netif_stop_queue(dev); - if (priv->tx_full && netif_queue_stopped(dev) && - dirty_tx > priv->cur_tx - TX_RING_SIZE + 2) { - /* The ring is no longer full. */ - priv->tx_full = 0; - netif_wake_queue(dev); - } + lance->RAP = CSR112; /* Missed Frame Count */ + dev->stats.rx_missed_errors = swapw(lance->RDP); + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - priv->dirty_tx = dirty_tx; + if (ariadne_debug > 1) { + netdev_dbg(dev, "Shutting down ethercard, status was %02x\n", + lance->RDP); + netdev_dbg(dev, "%lu packets missed\n", + dev->stats.rx_missed_errors); } - /* Log misc errors. */ - if (csr0 & BABL) { - handled = 1; - dev->stats.tx_errors++; /* Tx babble. */ - } - if (csr0 & MISS) { - handled = 1; - dev->stats.rx_errors++; /* Missed a Rx frame. */ - } - if (csr0 & MERR) { - handled = 1; - printk(KERN_ERR "%s: Bus master arbitration failure, status " - "%4.4x.\n", dev->name, csr0); - /* Restart the chip. */ - lance->RDP = STRT; - } - } + /* We stop the LANCE here -- it occasionally polls memory if we don't */ + lance->RDP = STOP; - /* Clear any other interrupt, and set interrupt enable. */ - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = INEA|BABL|CERR|MISS|MERR|IDON; + free_irq(IRQ_AMIGA_PORTS, dev); -#if 0 - if (ariadne_debug > 4) - printk(KERN_DEBUG "%s: exiting interrupt, csr%d=%#4.4x.\n", dev->name, - lance->RAP, lance->RDP); -#endif - return IRQ_RETVAL(handled); + return 0; } +static inline void ariadne_reset(struct net_device *dev) +{ + volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; + + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + lance->RDP = STOP; + ariadne_init_ring(dev); + lance->RDP = INEA | STRT; + netif_start_queue(dev); +} static void ariadne_tx_timeout(struct net_device *dev) { - volatile struct Am79C960 *lance = (struct Am79C960*)dev->base_addr; + volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; - printk(KERN_ERR "%s: transmit timed out, status %4.4x, resetting.\n", - dev->name, lance->RDP); - ariadne_reset(dev); - netif_wake_queue(dev); + netdev_err(dev, "transmit timed out, status %04x, resetting\n", + lance->RDP); + ariadne_reset(dev); + netif_wake_queue(dev); } - static netdev_tx_t ariadne_start_xmit(struct sk_buff *skb, struct net_device *dev) { - struct ariadne_private *priv = netdev_priv(dev); - volatile struct Am79C960 *lance = (struct Am79C960*)dev->base_addr; - int entry; - unsigned long flags; - int len = skb->len; - -#if 0 - if (ariadne_debug > 3) { - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - printk(KERN_DEBUG "%s: ariadne_start_xmit() called, csr0 %4.4x.\n", - dev->name, lance->RDP); - lance->RDP = 0x0000; - } -#endif - - /* FIXME: is the 79C960 new enough to do its own padding right ? */ - if (skb->len < ETH_ZLEN) - { - if (skb_padto(skb, ETH_ZLEN)) - return NETDEV_TX_OK; - len = ETH_ZLEN; - } - - /* Fill in a Tx ring entry */ + struct ariadne_private *priv = netdev_priv(dev); + volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; + int entry; + unsigned long flags; + int len = skb->len; #if 0 -{ - printk(KERN_DEBUG "TX pkt type 0x%04x from %pM to %pM " - " data 0x%08x len %d\n", - ((u_short *)skb->data)[6], - skb->data + 6, skb->data, - (int)skb->data, (int)skb->len); -} + if (ariadne_debug > 3) { + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + netdev_dbg(dev, "%s: csr0 %04x\n", __func__, lance->RDP); + lance->RDP = 0x0000; + } #endif - local_irq_save(flags); - - entry = priv->cur_tx % TX_RING_SIZE; - - /* Caution: the write order is important here, set the base address with - the "ownership" bits last. */ - - priv->tx_ring[entry]->TMD2 = swapw((u_short)-skb->len); - priv->tx_ring[entry]->TMD3 = 0x0000; - memcpyw(priv->tx_buff[entry], (u_short *)skb->data, len); - -#if 0 - { - int i, len; - - len = skb->len > 64 ? 64 : skb->len; - len >>= 1; - for (i = 0; i < len; i += 8) { - int j; - printk(KERN_DEBUG "%04x:", i); - for (j = 0; (j < 8) && ((i+j) < len); j++) { - if (!(j & 1)) - printk(" "); - printk("%04x", priv->tx_buff[entry][i+j]); - } - printk("\n"); + /* FIXME: is the 79C960 new enough to do its own padding right ? */ + if (skb->len < ETH_ZLEN) { + if (skb_padto(skb, ETH_ZLEN)) + return NETDEV_TX_OK; + len = ETH_ZLEN; } - } -#endif - priv->tx_ring[entry]->TMD1 = (priv->tx_ring[entry]->TMD1&0xff00)|TF_OWN|TF_STP|TF_ENP; + /* Fill in a Tx ring entry */ - dev_kfree_skb(skb); + netdev_dbg(dev, "TX pkt type 0x%04x from %pM to %pM data 0x%08x len %d\n", + ((u_short *)skb->data)[6], + skb->data + 6, skb->data, + (int)skb->data, (int)skb->len); - priv->cur_tx++; - if ((priv->cur_tx >= TX_RING_SIZE) && (priv->dirty_tx >= TX_RING_SIZE)) { + local_irq_save(flags); -#if 0 - printk(KERN_DEBUG "*** Subtracting TX_RING_SIZE from cur_tx (%d) and " - "dirty_tx (%d)\n", priv->cur_tx, priv->dirty_tx); -#endif + entry = priv->cur_tx % TX_RING_SIZE; - priv->cur_tx -= TX_RING_SIZE; - priv->dirty_tx -= TX_RING_SIZE; - } - dev->stats.tx_bytes += len; + /* Caution: the write order is important here, set the base address with + the "ownership" bits last */ - /* Trigger an immediate send poll. */ - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = INEA|TDMD; + priv->tx_ring[entry]->TMD2 = swapw((u_short)-skb->len); + priv->tx_ring[entry]->TMD3 = 0x0000; + memcpyw(priv->tx_buff[entry], (u_short *)skb->data, len); - if (lowb(priv->tx_ring[(entry+1) % TX_RING_SIZE]->TMD1) != 0) { - netif_stop_queue(dev); - priv->tx_full = 1; - } - local_irq_restore(flags); +#ifdef DEBUG + print_hex_dump(KERN_DEBUG, "tx_buff: ", DUMP_PREFIX_OFFSET, 16, 1, + (void *)priv->tx_buff[entry], + skb->len > 64 ? 64 : skb->len, true); +#endif - return NETDEV_TX_OK; -} + priv->tx_ring[entry]->TMD1 = (priv->tx_ring[entry]->TMD1 & 0xff00) + | TF_OWN | TF_STP | TF_ENP; + dev_kfree_skb(skb); -static int ariadne_rx(struct net_device *dev) -{ - struct ariadne_private *priv = netdev_priv(dev); - int entry = priv->cur_rx % RX_RING_SIZE; - int i; - - /* If we own the next entry, it's a new packet. Send it up. */ - while (!(lowb(priv->rx_ring[entry]->RMD1) & RF_OWN)) { - int status = lowb(priv->rx_ring[entry]->RMD1); - - if (status != (RF_STP|RF_ENP)) { /* There was an error. */ - /* There is a tricky error noted by John Murphy, - <murf@perftech.com> to Russ Nelson: Even with full-sized - buffers it's possible for a jabber packet to use two - buffers, with only the last correctly noting the error. */ - if (status & RF_ENP) - /* Only count a general error at the end of a packet.*/ - dev->stats.rx_errors++; - if (status & RF_FRAM) - dev->stats.rx_frame_errors++; - if (status & RF_OFLO) - dev->stats.rx_over_errors++; - if (status & RF_CRC) - dev->stats.rx_crc_errors++; - if (status & RF_BUFF) - dev->stats.rx_fifo_errors++; - priv->rx_ring[entry]->RMD1 &= 0xff00|RF_STP|RF_ENP; - } else { - /* Malloc up new buffer, compatible with net-3. */ - short pkt_len = swapw(priv->rx_ring[entry]->RMD3); - struct sk_buff *skb; - - skb = dev_alloc_skb(pkt_len+2); - if (skb == NULL) { - printk(KERN_WARNING "%s: Memory squeeze, deferring packet.\n", - dev->name); - for (i = 0; i < RX_RING_SIZE; i++) - if (lowb(priv->rx_ring[(entry+i) % RX_RING_SIZE]->RMD1) & RF_OWN) - break; - - if (i > RX_RING_SIZE-2) { - dev->stats.rx_dropped++; - priv->rx_ring[entry]->RMD1 |= RF_OWN; - priv->cur_rx++; - } - break; - } + priv->cur_tx++; + if ((priv->cur_tx >= TX_RING_SIZE) && + (priv->dirty_tx >= TX_RING_SIZE)) { + netdev_dbg(dev, "*** Subtracting TX_RING_SIZE from cur_tx (%d) and dirty_tx (%d)\n", + priv->cur_tx, priv->dirty_tx); - skb_reserve(skb,2); /* 16 byte align */ - skb_put(skb,pkt_len); /* Make room */ - skb_copy_to_linear_data(skb, (char *)priv->rx_buff[entry], pkt_len); - skb->protocol=eth_type_trans(skb,dev); -#if 0 -{ - printk(KERN_DEBUG "RX pkt type 0x%04x from ", - ((u_short *)skb->data)[6]); - { - u_char *ptr = &((u_char *)skb->data)[6]; - printk("%pM", ptr); - } - printk(" to "); - { - u_char *ptr = (u_char *)skb->data; - printk("%pM", ptr); - } - printk(" data 0x%08x len %d\n", (int)skb->data, (int)skb->len); -} -#endif - - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += pkt_len; + priv->cur_tx -= TX_RING_SIZE; + priv->dirty_tx -= TX_RING_SIZE; } + dev->stats.tx_bytes += len; - priv->rx_ring[entry]->RMD1 |= RF_OWN; - entry = (++priv->cur_rx) % RX_RING_SIZE; - } + /* Trigger an immediate send poll */ + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + lance->RDP = INEA | TDMD; - priv->cur_rx = priv->cur_rx % RX_RING_SIZE; - - /* We should check that at least two ring entries are free. If not, - we should free one and mark stats->rx_dropped++. */ + if (lowb(priv->tx_ring[(entry + 1) % TX_RING_SIZE]->TMD1) != 0) { + netif_stop_queue(dev); + priv->tx_full = 1; + } + local_irq_restore(flags); - return 0; + return NETDEV_TX_OK; } - static struct net_device_stats *ariadne_get_stats(struct net_device *dev) { - volatile struct Am79C960 *lance = (struct Am79C960*)dev->base_addr; - short saved_addr; - unsigned long flags; - - local_irq_save(flags); - saved_addr = lance->RAP; - lance->RAP = CSR112; /* Missed Frame Count */ - dev->stats.rx_missed_errors = swapw(lance->RDP); - lance->RAP = saved_addr; - local_irq_restore(flags); - - return &dev->stats; + volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; + short saved_addr; + unsigned long flags; + + local_irq_save(flags); + saved_addr = lance->RAP; + lance->RAP = CSR112; /* Missed Frame Count */ + dev->stats.rx_missed_errors = swapw(lance->RDP); + lance->RAP = saved_addr; + local_irq_restore(flags); + + return &dev->stats; } - /* 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. + * 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 set_multicast_list(struct net_device *dev) { - volatile struct Am79C960 *lance = (struct Am79C960*)dev->base_addr; + volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; - if (!netif_running(dev)) - return; + if (!netif_running(dev)) + return; - netif_stop_queue(dev); + netif_stop_queue(dev); - /* We take the simple way out and always enable promiscuous mode. */ - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = STOP; /* Temporarily stop the lance. */ - ariadne_init_ring(dev); + /* We take the simple way out and always enable promiscuous mode */ + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + lance->RDP = STOP; /* Temporarily stop the lance */ + ariadne_init_ring(dev); - if (dev->flags & IFF_PROMISC) { - lance->RAP = CSR15; /* Mode Register */ - lance->RDP = PROM; /* Set promiscuous mode */ - } else { - short multicast_table[4]; - int num_addrs = netdev_mc_count(dev); - int i; - /* We don't use the multicast table, but rely on upper-layer filtering. */ - memset(multicast_table, (num_addrs == 0) ? 0 : -1, - sizeof(multicast_table)); - for (i = 0; i < 4; i++) { - lance->RAP = CSR8+(i<<8); /* Logical Address Filter */ - lance->RDP = swapw(multicast_table[i]); + if (dev->flags & IFF_PROMISC) { + lance->RAP = CSR15; /* Mode Register */ + lance->RDP = PROM; /* Set promiscuous mode */ + } else { + short multicast_table[4]; + int num_addrs = netdev_mc_count(dev); + int i; + /* We don't use the multicast table, + * but rely on upper-layer filtering + */ + memset(multicast_table, (num_addrs == 0) ? 0 : -1, + sizeof(multicast_table)); + for (i = 0; i < 4; i++) { + lance->RAP = CSR8 + (i << 8); + /* Logical Address Filter */ + lance->RDP = swapw(multicast_table[i]); + } + lance->RAP = CSR15; /* Mode Register */ + lance->RDP = 0x0000; /* Unset promiscuous mode */ } - lance->RAP = CSR15; /* Mode Register */ - lance->RDP = 0x0000; /* Unset promiscuous mode */ - } - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = INEA|STRT|IDON; /* Resume normal operation. */ + lance->RAP = CSR0; /* PCnet-ISA Controller Status */ + lance->RDP = INEA | STRT | IDON;/* Resume normal operation */ - netif_wake_queue(dev); + netif_wake_queue(dev); } static void __devexit ariadne_remove_one(struct zorro_dev *z) { - struct net_device *dev = zorro_get_drvdata(z); + struct net_device *dev = zorro_get_drvdata(z); - unregister_netdev(dev); - release_mem_region(ZTWO_PADDR(dev->base_addr), sizeof(struct Am79C960)); - release_mem_region(ZTWO_PADDR(dev->mem_start), ARIADNE_RAM_SIZE); - free_netdev(dev); + unregister_netdev(dev); + release_mem_region(ZTWO_PADDR(dev->base_addr), sizeof(struct Am79C960)); + release_mem_region(ZTWO_PADDR(dev->mem_start), ARIADNE_RAM_SIZE); + free_netdev(dev); } +static struct zorro_device_id ariadne_zorro_tbl[] __devinitdata = { + { ZORRO_PROD_VILLAGE_TRONIC_ARIADNE }, + { 0 } +}; +MODULE_DEVICE_TABLE(zorro, ariadne_zorro_tbl); + +static const struct net_device_ops ariadne_netdev_ops = { + .ndo_open = ariadne_open, + .ndo_stop = ariadne_close, + .ndo_start_xmit = ariadne_start_xmit, + .ndo_tx_timeout = ariadne_tx_timeout, + .ndo_get_stats = ariadne_get_stats, + .ndo_set_multicast_list = set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_change_mtu = eth_change_mtu, + .ndo_set_mac_address = eth_mac_addr, +}; + +static int __devinit ariadne_init_one(struct zorro_dev *z, + const struct zorro_device_id *ent) +{ + unsigned long board = z->resource.start; + unsigned long base_addr = board + ARIADNE_LANCE; + unsigned long mem_start = board + ARIADNE_RAM; + struct resource *r1, *r2; + struct net_device *dev; + struct ariadne_private *priv; + int err; + + r1 = request_mem_region(base_addr, sizeof(struct Am79C960), "Am79C960"); + if (!r1) + return -EBUSY; + r2 = request_mem_region(mem_start, ARIADNE_RAM_SIZE, "RAM"); + if (!r2) { + release_mem_region(base_addr, sizeof(struct Am79C960)); + return -EBUSY; + } + + dev = alloc_etherdev(sizeof(struct ariadne_private)); + if (dev == NULL) { + release_mem_region(base_addr, sizeof(struct Am79C960)); + release_mem_region(mem_start, ARIADNE_RAM_SIZE); + return -ENOMEM; + } + + priv = netdev_priv(dev); + + r1->name = dev->name; + r2->name = dev->name; + + dev->dev_addr[0] = 0x00; + dev->dev_addr[1] = 0x60; + dev->dev_addr[2] = 0x30; + dev->dev_addr[3] = (z->rom.er_SerialNumber >> 16) & 0xff; + dev->dev_addr[4] = (z->rom.er_SerialNumber >> 8) & 0xff; + dev->dev_addr[5] = z->rom.er_SerialNumber & 0xff; + dev->base_addr = ZTWO_VADDR(base_addr); + dev->mem_start = ZTWO_VADDR(mem_start); + dev->mem_end = dev->mem_start + ARIADNE_RAM_SIZE; + + dev->netdev_ops = &ariadne_netdev_ops; + dev->watchdog_timeo = 5 * HZ; + + err = register_netdev(dev); + if (err) { + release_mem_region(base_addr, sizeof(struct Am79C960)); + release_mem_region(mem_start, ARIADNE_RAM_SIZE); + free_netdev(dev); + return err; + } + zorro_set_drvdata(z, dev); + + netdev_info(dev, "Ariadne at 0x%08lx, Ethernet Address %pM\n", + board, dev->dev_addr); + + return 0; +} + +static struct zorro_driver ariadne_driver = { + .name = "ariadne", + .id_table = ariadne_zorro_tbl, + .probe = ariadne_init_one, + .remove = __devexit_p(ariadne_remove_one), +}; + static int __init ariadne_init_module(void) { - return zorro_register_driver(&ariadne_driver); + return zorro_register_driver(&ariadne_driver); } static void __exit ariadne_cleanup_module(void) { - zorro_unregister_driver(&ariadne_driver); + zorro_unregister_driver(&ariadne_driver); } module_init(ariadne_init_module); |