diff options
author | Jeff Kirsher | 2011-03-30 07:46:36 -0700 |
---|---|---|
committer | Jeff Kirsher | 2011-08-10 19:54:11 -0700 |
commit | b955f6ca776f3bab3d1e2c5fb1d247b203cbda14 (patch) | |
tree | 88e47fa3369f95c5673d4d654ae5f432cdc79048 /drivers/net/ariadne.c | |
parent | ca7a8e85262e93065b2a49dfb96a24d4a534a049 (diff) |
amd: Move AMD (Lance) chipset drivers
Moves the drivers for the AMD chipsets into drivers/net/ethernet/amd/
and the necessary Kconfig and Makfile changes.
The au1000 (Alchemy) driver was also moved into the same directory
even though it is not a "Lance" driver.
CC: Peter Maydell <pmaydell@chiark.greenend.org.uk>
CC: Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
CC: "Maciej W. Rozycki" <macro@linux-mips.org>
CC: Donald Becker <becker@scyld.com>
CC: Sam Creasey <sammy@users.qual.net>
CC: Miguel de Icaza <miguel@nuclecu.unam.mx>
CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
CC: Don Fry <pcnet32@frontier.com>
CC: Geert Uytterhoeven <geert@linux-m68k.org>
CC: Russell King <linux@arm.linux.org.uk>
CC: David Davies <davies@maniac.ultranet.com>
CC: "M.Hipp" <hippm@informatik.uni-tuebingen.de>
CC: Pete Popov <ppopov@embeddedalley.com>
CC: David Hinds <dahinds@users.sourceforge.net>
CC: "Roger C. Pao" <rpao@paonet.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ariadne.c')
-rw-r--r-- | drivers/net/ariadne.c | 793 |
1 files changed, 0 insertions, 793 deletions
diff --git a/drivers/net/ariadne.c b/drivers/net/ariadne.c deleted file mode 100644 index 7ed78f402042..000000000000 --- a/drivers/net/ariadne.c +++ /dev/null @@ -1,793 +0,0 @@ -/* - * Amiga Linux/m68k Ariadne Ethernet Driver - * - * © Copyright 1995-2003 by Geert Uytterhoeven (geert@linux-m68k.org) - * Peter De Schrijver (p2@mind.be) - * - * --------------------------------------------------------------------------- - * - * This program is based on - * - * lance.c: An AMD LANCE ethernet driver for linux. - * Written 1993-94 by Donald Becker. - * - * Am79C960: PCnet(tm)-ISA Single-Chip Ethernet Controller - * Advanced Micro Devices - * Publication #16907, Rev. B, Amendment/0, May 1994 - * - * MC68230: Parallel Interface/Timer (PI/T) - * Motorola Semiconductors, December, 1983 - * - * --------------------------------------------------------------------------- - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of the Linux - * distribution for more details. - * - * --------------------------------------------------------------------------- - * - * The Ariadne is a Zorro-II board made by Village Tronic. It contains: - * - * - an Am79C960 PCnet-ISA Single-Chip Ethernet Controller with both - * 10BASE-2 (thin coax) and 10BASE-T (UTP) connectors - * - * - 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> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/interrupt.h> -#include <linux/skbuff.h> -#include <linux/init.h> -#include <linux/zorro.h> -#include <linux/bitops.h> - -#include <asm/amigaints.h> -#include <asm/amigahw.h> -#include <asm/irq.h> - -#include "ariadne.h" - -#ifdef ARIADNE_DEBUG -int ariadne_debug = ARIADNE_DEBUG; -#else -int ariadne_debug = 1; -#endif - -/* 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)) - -/* Transmit/Receive Ring Definitions */ - -#define TX_RING_SIZE 5 -#define RX_RING_SIZE 16 - -#define PKT_BUF_SIZE 1520 - -/* 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; -}; - -/* 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)]; -}; - -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; -} - -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; - - 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]; - netdev_dbg(dev, "TX Entry %2d at %p, Buf at %p\n", - i, &lancedata->tx_ring[i], lancedata->tx_buff[i]); - } - - /* 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 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 - */ - /* 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; - } - - priv->rx_ring[entry]->RMD1 |= RF_OWN; - entry = (++priv->cur_rx) % RX_RING_SIZE; - } - - 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++ - */ - - return 0; -} - -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; - - 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); - } - - 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++; - } - -#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 - - 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); - } - - priv->dirty_tx = dirty_tx; - } - - /* 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; - } - } - - /* Clear any other interrupt, and set interrupt enable */ - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = INEA | BABL | CERR | MISS | MERR | IDON; - - if (ariadne_debug > 4) - netdev_dbg(dev, "exiting interrupt, csr%d=%#04x\n", - lance->RAP, lance->RDP); - - return IRQ_RETVAL(handled); -} - -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) { - 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; - } - - netdev_dbg(dev, "Am79C960 (PCnet-ISA) Revision %ld\n", - (version & 0xf0000000) >> 28); - - 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; -} - -static int ariadne_close(struct net_device *dev) -{ - volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; - - netif_stop_queue(dev); - - lance->RAP = CSR112; /* Missed Frame Count */ - dev->stats.rx_missed_errors = swapw(lance->RDP); - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - - 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); - } - - /* We stop the LANCE here -- it occasionally polls memory if we don't */ - lance->RDP = STOP; - - free_irq(IRQ_AMIGA_PORTS, dev); - - 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; - - 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 */ - netdev_dbg(dev, "%s: csr0 %04x\n", __func__, 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 */ - - 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); - - 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); - -#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 - - priv->tx_ring[entry]->TMD1 = (priv->tx_ring[entry]->TMD1 & 0xff00) - | TF_OWN | TF_STP | TF_ENP; - - dev_kfree_skb(skb); - - 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); - - priv->cur_tx -= TX_RING_SIZE; - priv->dirty_tx -= TX_RING_SIZE; - } - dev->stats.tx_bytes += len; - - /* Trigger an immediate send poll */ - lance->RAP = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = INEA | TDMD; - - 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 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; -} - -/* 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 set_multicast_list(struct net_device *dev) -{ - volatile struct Am79C960 *lance = (struct Am79C960 *)dev->base_addr; - - if (!netif_running(dev)) - return; - - 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); - - 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 = CSR0; /* PCnet-ISA Controller Status */ - lance->RDP = INEA | STRT | IDON;/* Resume normal operation */ - - netif_wake_queue(dev); -} - - -static void __devexit ariadne_remove_one(struct zorro_dev *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); -} - -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); -} - -static void __exit ariadne_cleanup_module(void) -{ - zorro_unregister_driver(&ariadne_driver); -} - -module_init(ariadne_init_module); -module_exit(ariadne_cleanup_module); - -MODULE_LICENSE("GPL"); |