| /* |
| * Amiga Linux/68k A2065 Ethernet Driver |
| * |
| * (C) Copyright 1995-2003 by Geert Uytterhoeven <geert@linux-m68k.org> |
| * |
| * Fixes and tips by: |
| * - Janos Farkas (CHEXUM@sparta.banki.hu) |
| * - Jes Degn Soerensen (jds@kom.auc.dk) |
| * - Matt Domsch (Matt_Domsch@dell.com) |
| * |
| * ---------------------------------------------------------------------------- |
| * |
| * This program is based on |
| * |
| * ariadne.?: Amiga Linux/68k Ariadne Ethernet Driver |
| * (C) Copyright 1995 by Geert Uytterhoeven, |
| * Peter De Schrijver |
| * |
| * 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 |
| * |
| * ---------------------------------------------------------------------------- |
| * |
| * 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 A2065 is a Zorro-II board made by Commodore/Ameristar. It contains: |
| * |
| * - an Am7990 Local Area Network Controller for Ethernet (LANCE) with |
| * both 10BASE-2 (thin coax) and AUI (DB-15) connectors |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| /*#define DEBUG*/ |
| /*#define TEST_HITS*/ |
| |
| #include <linux/errno.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/module.h> |
| #include <linux/stddef.h> |
| #include <linux/kernel.h> |
| #include <linux/interrupt.h> |
| #include <linux/ioport.h> |
| #include <linux/skbuff.h> |
| #include <linux/string.h> |
| #include <linux/init.h> |
| #include <linux/crc32.h> |
| #include <linux/zorro.h> |
| #include <linux/bitops.h> |
| |
| #include <asm/byteorder.h> |
| #include <asm/irq.h> |
| #include <asm/amigaints.h> |
| #include <asm/amigahw.h> |
| |
| #include "a2065.h" |
| |
| /* Transmit/Receive Ring Definitions */ |
| |
| #define LANCE_LOG_TX_BUFFERS (2) |
| #define LANCE_LOG_RX_BUFFERS (4) |
| |
| #define TX_RING_SIZE (1 << LANCE_LOG_TX_BUFFERS) |
| #define RX_RING_SIZE (1 << LANCE_LOG_RX_BUFFERS) |
| |
| #define TX_RING_MOD_MASK (TX_RING_SIZE - 1) |
| #define RX_RING_MOD_MASK (RX_RING_SIZE - 1) |
| |
| #define PKT_BUF_SIZE (1544) |
| #define RX_BUFF_SIZE PKT_BUF_SIZE |
| #define TX_BUFF_SIZE PKT_BUF_SIZE |
| |
| /* Layout of the Lance's RAM Buffer */ |
| |
| struct lance_init_block { |
| unsigned short mode; /* Pre-set mode (reg. 15) */ |
| unsigned char phys_addr[6]; /* Physical ethernet address */ |
| unsigned filter[2]; /* Multicast filter. */ |
| |
| /* Receive and transmit ring base, along with extra bits. */ |
| unsigned short rx_ptr; /* receive descriptor addr */ |
| unsigned short rx_len; /* receive len and high addr */ |
| unsigned short tx_ptr; /* transmit descriptor addr */ |
| unsigned short tx_len; /* transmit len and high addr */ |
| |
| /* The Tx and Rx ring entries must aligned on 8-byte boundaries. */ |
| struct lance_rx_desc brx_ring[RX_RING_SIZE]; |
| struct lance_tx_desc btx_ring[TX_RING_SIZE]; |
| |
| char rx_buf[RX_RING_SIZE][RX_BUFF_SIZE]; |
| char tx_buf[TX_RING_SIZE][TX_BUFF_SIZE]; |
| }; |
| |
| /* Private Device Data */ |
| |
| struct lance_private { |
| char *name; |
| volatile struct lance_regs *ll; |
| volatile struct lance_init_block *init_block; /* Hosts view */ |
| volatile struct lance_init_block *lance_init_block; /* Lance view */ |
| |
| int rx_new, tx_new; |
| int rx_old, tx_old; |
| |
| int lance_log_rx_bufs, lance_log_tx_bufs; |
| int rx_ring_mod_mask, tx_ring_mod_mask; |
| |
| int tpe; /* cable-selection is TPE */ |
| int auto_select; /* cable-selection by carrier */ |
| unsigned short busmaster_regval; |
| |
| #ifdef CONFIG_SUNLANCE |
| struct Linux_SBus_DMA *ledma; /* if set this points to ledma and arch=4m */ |
| int burst_sizes; /* ledma SBus burst sizes */ |
| #endif |
| struct timer_list multicast_timer; |
| }; |
| |
| #define LANCE_ADDR(x) ((int)(x) & ~0xff000000) |
| |
| /* Load the CSR registers */ |
| static void load_csrs(struct lance_private *lp) |
| { |
| volatile struct lance_regs *ll = lp->ll; |
| volatile struct lance_init_block *aib = lp->lance_init_block; |
| int leptr = LANCE_ADDR(aib); |
| |
| ll->rap = LE_CSR1; |
| ll->rdp = (leptr & 0xFFFF); |
| ll->rap = LE_CSR2; |
| ll->rdp = leptr >> 16; |
| ll->rap = LE_CSR3; |
| ll->rdp = lp->busmaster_regval; |
| |
| /* Point back to csr0 */ |
| ll->rap = LE_CSR0; |
| } |
| |
| /* Setup the Lance Rx and Tx rings */ |
| static void lance_init_ring(struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_init_block *ib = lp->init_block; |
| volatile struct lance_init_block *aib = lp->lance_init_block; |
| /* for LANCE_ADDR computations */ |
| int leptr; |
| int i; |
| |
| /* Lock out other processes while setting up hardware */ |
| netif_stop_queue(dev); |
| lp->rx_new = lp->tx_new = 0; |
| lp->rx_old = lp->tx_old = 0; |
| |
| ib->mode = 0; |
| |
| /* Copy the ethernet address to the lance init block |
| * Note that on the sparc you need to swap the ethernet address. |
| */ |
| ib->phys_addr[0] = dev->dev_addr[1]; |
| ib->phys_addr[1] = dev->dev_addr[0]; |
| ib->phys_addr[2] = dev->dev_addr[3]; |
| ib->phys_addr[3] = dev->dev_addr[2]; |
| ib->phys_addr[4] = dev->dev_addr[5]; |
| ib->phys_addr[5] = dev->dev_addr[4]; |
| |
| /* Setup the Tx ring entries */ |
| netdev_dbg(dev, "TX rings:\n"); |
| for (i = 0; i <= 1 << lp->lance_log_tx_bufs; i++) { |
| leptr = LANCE_ADDR(&aib->tx_buf[i][0]); |
| ib->btx_ring[i].tmd0 = leptr; |
| ib->btx_ring[i].tmd1_hadr = leptr >> 16; |
| ib->btx_ring[i].tmd1_bits = 0; |
| ib->btx_ring[i].length = 0xf000; /* The ones required by tmd2 */ |
| ib->btx_ring[i].misc = 0; |
| if (i < 3) |
| netdev_dbg(dev, "%d: 0x%08x\n", i, leptr); |
| } |
| |
| /* Setup the Rx ring entries */ |
| netdev_dbg(dev, "RX rings:\n"); |
| for (i = 0; i < 1 << lp->lance_log_rx_bufs; i++) { |
| leptr = LANCE_ADDR(&aib->rx_buf[i][0]); |
| |
| ib->brx_ring[i].rmd0 = leptr; |
| ib->brx_ring[i].rmd1_hadr = leptr >> 16; |
| ib->brx_ring[i].rmd1_bits = LE_R1_OWN; |
| ib->brx_ring[i].length = -RX_BUFF_SIZE | 0xf000; |
| ib->brx_ring[i].mblength = 0; |
| if (i < 3) |
| netdev_dbg(dev, "%d: 0x%08x\n", i, leptr); |
| } |
| |
| /* Setup the initialization block */ |
| |
| /* Setup rx descriptor pointer */ |
| leptr = LANCE_ADDR(&aib->brx_ring); |
| ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16); |
| ib->rx_ptr = leptr; |
| netdev_dbg(dev, "RX ptr: %08x\n", leptr); |
| |
| /* Setup tx descriptor pointer */ |
| leptr = LANCE_ADDR(&aib->btx_ring); |
| ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16); |
| ib->tx_ptr = leptr; |
| netdev_dbg(dev, "TX ptr: %08x\n", leptr); |
| |
| /* Clear the multicast filter */ |
| ib->filter[0] = 0; |
| ib->filter[1] = 0; |
| } |
| |
| static int init_restart_lance(struct lance_private *lp) |
| { |
| volatile struct lance_regs *ll = lp->ll; |
| int i; |
| |
| ll->rap = LE_CSR0; |
| ll->rdp = LE_C0_INIT; |
| |
| /* Wait for the lance to complete initialization */ |
| for (i = 0; (i < 100) && !(ll->rdp & (LE_C0_ERR | LE_C0_IDON)); i++) |
| barrier(); |
| if ((i == 100) || (ll->rdp & LE_C0_ERR)) { |
| pr_err("unopened after %d ticks, csr0=%04x\n", i, ll->rdp); |
| return -EIO; |
| } |
| |
| /* Clear IDON by writing a "1", enable interrupts and start lance */ |
| ll->rdp = LE_C0_IDON; |
| ll->rdp = LE_C0_INEA | LE_C0_STRT; |
| |
| return 0; |
| } |
| |
| static int lance_rx(struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_init_block *ib = lp->init_block; |
| volatile struct lance_regs *ll = lp->ll; |
| volatile struct lance_rx_desc *rd; |
| unsigned char bits; |
| |
| #ifdef TEST_HITS |
| int i; |
| char buf[RX_RING_SIZE + 1]; |
| |
| for (i = 0; i < RX_RING_SIZE; i++) { |
| char r1_own = ib->brx_ring[i].rmd1_bits & LE_R1_OWN; |
| if (i == lp->rx_new) |
| buf[i] = r1_own ? '_' : 'X'; |
| else |
| buf[i] = r1_own ? '.' : '1'; |
| } |
| buf[RX_RING_SIZE] = 0; |
| |
| pr_debug("RxRing TestHits: [%s]\n", buf); |
| #endif |
| |
| ll->rdp = LE_C0_RINT | LE_C0_INEA; |
| for (rd = &ib->brx_ring[lp->rx_new]; |
| !((bits = rd->rmd1_bits) & LE_R1_OWN); |
| rd = &ib->brx_ring[lp->rx_new]) { |
| |
| /* We got an incomplete frame? */ |
| if ((bits & LE_R1_POK) != LE_R1_POK) { |
| dev->stats.rx_over_errors++; |
| dev->stats.rx_errors++; |
| continue; |
| } else if (bits & LE_R1_ERR) { |
| /* Count only the end frame as a rx error, |
| * not the beginning |
| */ |
| if (bits & LE_R1_BUF) |
| dev->stats.rx_fifo_errors++; |
| if (bits & LE_R1_CRC) |
| dev->stats.rx_crc_errors++; |
| if (bits & LE_R1_OFL) |
| dev->stats.rx_over_errors++; |
| if (bits & LE_R1_FRA) |
| dev->stats.rx_frame_errors++; |
| if (bits & LE_R1_EOP) |
| dev->stats.rx_errors++; |
| } else { |
| int len = (rd->mblength & 0xfff) - 4; |
| struct sk_buff *skb = netdev_alloc_skb(dev, len + 2); |
| |
| if (!skb) { |
| dev->stats.rx_dropped++; |
| rd->mblength = 0; |
| rd->rmd1_bits = LE_R1_OWN; |
| lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask; |
| return 0; |
| } |
| |
| skb_reserve(skb, 2); /* 16 byte align */ |
| skb_put(skb, len); /* make room */ |
| skb_copy_to_linear_data(skb, |
| (unsigned char *)&ib->rx_buf[lp->rx_new][0], |
| len); |
| skb->protocol = eth_type_trans(skb, dev); |
| netif_rx(skb); |
| dev->stats.rx_packets++; |
| dev->stats.rx_bytes += len; |
| } |
| |
| /* Return the packet to the pool */ |
| rd->mblength = 0; |
| rd->rmd1_bits = LE_R1_OWN; |
| lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask; |
| } |
| return 0; |
| } |
| |
| static int lance_tx(struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_init_block *ib = lp->init_block; |
| volatile struct lance_regs *ll = lp->ll; |
| volatile struct lance_tx_desc *td; |
| int i, j; |
| int status; |
| |
| /* csr0 is 2f3 */ |
| ll->rdp = LE_C0_TINT | LE_C0_INEA; |
| /* csr0 is 73 */ |
| |
| j = lp->tx_old; |
| for (i = j; i != lp->tx_new; i = j) { |
| td = &ib->btx_ring[i]; |
| |
| /* If we hit a packet not owned by us, stop */ |
| if (td->tmd1_bits & LE_T1_OWN) |
| break; |
| |
| if (td->tmd1_bits & LE_T1_ERR) { |
| status = td->misc; |
| |
| dev->stats.tx_errors++; |
| if (status & LE_T3_RTY) |
| dev->stats.tx_aborted_errors++; |
| if (status & LE_T3_LCOL) |
| dev->stats.tx_window_errors++; |
| |
| if (status & LE_T3_CLOS) { |
| dev->stats.tx_carrier_errors++; |
| if (lp->auto_select) { |
| lp->tpe = 1 - lp->tpe; |
| netdev_err(dev, "Carrier Lost, trying %s\n", |
| lp->tpe ? "TPE" : "AUI"); |
| /* Stop the lance */ |
| ll->rap = LE_CSR0; |
| ll->rdp = LE_C0_STOP; |
| lance_init_ring(dev); |
| load_csrs(lp); |
| init_restart_lance(lp); |
| return 0; |
| } |
| } |
| |
| /* buffer errors and underflows turn off |
| * the transmitter, so restart the adapter |
| */ |
| if (status & (LE_T3_BUF | LE_T3_UFL)) { |
| dev->stats.tx_fifo_errors++; |
| |
| netdev_err(dev, "Tx: ERR_BUF|ERR_UFL, restarting\n"); |
| /* Stop the lance */ |
| ll->rap = LE_CSR0; |
| ll->rdp = LE_C0_STOP; |
| lance_init_ring(dev); |
| load_csrs(lp); |
| init_restart_lance(lp); |
| return 0; |
| } |
| } else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) { |
| /* So we don't count the packet more than once. */ |
| td->tmd1_bits &= ~(LE_T1_POK); |
| |
| /* One collision before packet was sent. */ |
| if (td->tmd1_bits & LE_T1_EONE) |
| dev->stats.collisions++; |
| |
| /* More than one collision, be optimistic. */ |
| if (td->tmd1_bits & LE_T1_EMORE) |
| dev->stats.collisions += 2; |
| |
| dev->stats.tx_packets++; |
| } |
| |
| j = (j + 1) & lp->tx_ring_mod_mask; |
| } |
| lp->tx_old = j; |
| ll->rdp = LE_C0_TINT | LE_C0_INEA; |
| return 0; |
| } |
| |
| static int lance_tx_buffs_avail(struct lance_private *lp) |
| { |
| if (lp->tx_old <= lp->tx_new) |
| return lp->tx_old + lp->tx_ring_mod_mask - lp->tx_new; |
| return lp->tx_old - lp->tx_new - 1; |
| } |
| |
| static irqreturn_t lance_interrupt(int irq, void *dev_id) |
| { |
| struct net_device *dev = dev_id; |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_regs *ll = lp->ll; |
| int csr0; |
| |
| ll->rap = LE_CSR0; /* LANCE Controller Status */ |
| csr0 = ll->rdp; |
| |
| if (!(csr0 & LE_C0_INTR)) /* Check if any interrupt has */ |
| return IRQ_NONE; /* been generated by the Lance. */ |
| |
| /* Acknowledge all the interrupt sources ASAP */ |
| ll->rdp = csr0 & ~(LE_C0_INEA | LE_C0_TDMD | LE_C0_STOP | LE_C0_STRT | |
| LE_C0_INIT); |
| |
| if (csr0 & LE_C0_ERR) { |
| /* Clear the error condition */ |
| ll->rdp = LE_C0_BABL | LE_C0_ERR | LE_C0_MISS | LE_C0_INEA; |
| } |
| |
| if (csr0 & LE_C0_RINT) |
| lance_rx(dev); |
| |
| if (csr0 & LE_C0_TINT) |
| lance_tx(dev); |
| |
| /* Log misc errors. */ |
| if (csr0 & LE_C0_BABL) |
| dev->stats.tx_errors++; /* Tx babble. */ |
| if (csr0 & LE_C0_MISS) |
| dev->stats.rx_errors++; /* Missed a Rx frame. */ |
| if (csr0 & LE_C0_MERR) { |
| netdev_err(dev, "Bus master arbitration failure, status %04x\n", |
| csr0); |
| /* Restart the chip. */ |
| ll->rdp = LE_C0_STRT; |
| } |
| |
| if (netif_queue_stopped(dev) && lance_tx_buffs_avail(lp) > 0) |
| netif_wake_queue(dev); |
| |
| ll->rap = LE_CSR0; |
| ll->rdp = (LE_C0_BABL | LE_C0_CERR | LE_C0_MISS | LE_C0_MERR | |
| LE_C0_IDON | LE_C0_INEA); |
| return IRQ_HANDLED; |
| } |
| |
| static int lance_open(struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_regs *ll = lp->ll; |
| int ret; |
| |
| /* Stop the Lance */ |
| ll->rap = LE_CSR0; |
| ll->rdp = LE_C0_STOP; |
| |
| /* Install the Interrupt handler */ |
| ret = request_irq(IRQ_AMIGA_PORTS, lance_interrupt, IRQF_SHARED, |
| dev->name, dev); |
| if (ret) |
| return ret; |
| |
| load_csrs(lp); |
| lance_init_ring(dev); |
| |
| netif_start_queue(dev); |
| |
| return init_restart_lance(lp); |
| } |
| |
| static int lance_close(struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_regs *ll = lp->ll; |
| |
| netif_stop_queue(dev); |
| del_timer_sync(&lp->multicast_timer); |
| |
| /* Stop the card */ |
| ll->rap = LE_CSR0; |
| ll->rdp = LE_C0_STOP; |
| |
| free_irq(IRQ_AMIGA_PORTS, dev); |
| return 0; |
| } |
| |
| static inline int lance_reset(struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_regs *ll = lp->ll; |
| int status; |
| |
| /* Stop the lance */ |
| ll->rap = LE_CSR0; |
| ll->rdp = LE_C0_STOP; |
| |
| load_csrs(lp); |
| |
| lance_init_ring(dev); |
| dev->trans_start = jiffies; /* prevent tx timeout */ |
| netif_start_queue(dev); |
| |
| status = init_restart_lance(lp); |
| netdev_dbg(dev, "Lance restart=%d\n", status); |
| |
| return status; |
| } |
| |
| static void lance_tx_timeout(struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_regs *ll = lp->ll; |
| |
| netdev_err(dev, "transmit timed out, status %04x, reset\n", ll->rdp); |
| lance_reset(dev); |
| netif_wake_queue(dev); |
| } |
| |
| static netdev_tx_t lance_start_xmit(struct sk_buff *skb, |
| struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_regs *ll = lp->ll; |
| volatile struct lance_init_block *ib = lp->init_block; |
| int entry, skblen; |
| int status = NETDEV_TX_OK; |
| unsigned long flags; |
| |
| if (skb_padto(skb, ETH_ZLEN)) |
| return NETDEV_TX_OK; |
| skblen = max_t(unsigned, skb->len, ETH_ZLEN); |
| |
| local_irq_save(flags); |
| |
| if (!lance_tx_buffs_avail(lp)) |
| goto out_free; |
| |
| #ifdef DEBUG |
| /* dump the packet */ |
| print_hex_dump(KERN_DEBUG, "skb->data: ", DUMP_PREFIX_NONE, |
| 16, 1, skb->data, 64, true); |
| #endif |
| entry = lp->tx_new & lp->tx_ring_mod_mask; |
| ib->btx_ring[entry].length = (-skblen) | 0xf000; |
| ib->btx_ring[entry].misc = 0; |
| |
| skb_copy_from_linear_data(skb, (void *)&ib->tx_buf[entry][0], skblen); |
| |
| /* Now, give the packet to the lance */ |
| ib->btx_ring[entry].tmd1_bits = (LE_T1_POK | LE_T1_OWN); |
| lp->tx_new = (lp->tx_new+1) & lp->tx_ring_mod_mask; |
| dev->stats.tx_bytes += skblen; |
| |
| if (lance_tx_buffs_avail(lp) <= 0) |
| netif_stop_queue(dev); |
| |
| /* Kick the lance: transmit now */ |
| ll->rdp = LE_C0_INEA | LE_C0_TDMD; |
| out_free: |
| dev_kfree_skb(skb); |
| |
| local_irq_restore(flags); |
| |
| return status; |
| } |
| |
| /* taken from the depca driver */ |
| static void lance_load_multicast(struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_init_block *ib = lp->init_block; |
| volatile u16 *mcast_table = (u16 *)&ib->filter; |
| struct netdev_hw_addr *ha; |
| u32 crc; |
| |
| /* set all multicast bits */ |
| if (dev->flags & IFF_ALLMULTI) { |
| ib->filter[0] = 0xffffffff; |
| ib->filter[1] = 0xffffffff; |
| return; |
| } |
| /* clear the multicast filter */ |
| ib->filter[0] = 0; |
| ib->filter[1] = 0; |
| |
| /* Add addresses */ |
| netdev_for_each_mc_addr(ha, dev) { |
| crc = ether_crc_le(6, ha->addr); |
| crc = crc >> 26; |
| mcast_table[crc >> 4] |= 1 << (crc & 0xf); |
| } |
| } |
| |
| static void lance_set_multicast(struct net_device *dev) |
| { |
| struct lance_private *lp = netdev_priv(dev); |
| volatile struct lance_init_block *ib = lp->init_block; |
| volatile struct lance_regs *ll = lp->ll; |
| |
| if (!netif_running(dev)) |
| return; |
| |
| if (lp->tx_old != lp->tx_new) { |
| mod_timer(&lp->multicast_timer, jiffies + 4); |
| netif_wake_queue(dev); |
| return; |
| } |
| |
| netif_stop_queue(dev); |
| |
| ll->rap = LE_CSR0; |
| ll->rdp = LE_C0_STOP; |
| lance_init_ring(dev); |
| |
| if (dev->flags & IFF_PROMISC) { |
| ib->mode |= LE_MO_PROM; |
| } else { |
| ib->mode &= ~LE_MO_PROM; |
| lance_load_multicast(dev); |
| } |
| load_csrs(lp); |
| init_restart_lance(lp); |
| netif_wake_queue(dev); |
| } |
| |
| static int a2065_init_one(struct zorro_dev *z, |
| const struct zorro_device_id *ent); |
| static void a2065_remove_one(struct zorro_dev *z); |
| |
| |
| static struct zorro_device_id a2065_zorro_tbl[] = { |
| { ZORRO_PROD_CBM_A2065_1 }, |
| { ZORRO_PROD_CBM_A2065_2 }, |
| { ZORRO_PROD_AMERISTAR_A2065 }, |
| { 0 } |
| }; |
| MODULE_DEVICE_TABLE(zorro, a2065_zorro_tbl); |
| |
| static struct zorro_driver a2065_driver = { |
| .name = "a2065", |
| .id_table = a2065_zorro_tbl, |
| .probe = a2065_init_one, |
| .remove = a2065_remove_one, |
| }; |
| |
| static const struct net_device_ops lance_netdev_ops = { |
| .ndo_open = lance_open, |
| .ndo_stop = lance_close, |
| .ndo_start_xmit = lance_start_xmit, |
| .ndo_tx_timeout = lance_tx_timeout, |
| .ndo_set_rx_mode = lance_set_multicast, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_change_mtu = eth_change_mtu, |
| .ndo_set_mac_address = eth_mac_addr, |
| }; |
| |
| static int a2065_init_one(struct zorro_dev *z, |
| const struct zorro_device_id *ent) |
| { |
| struct net_device *dev; |
| struct lance_private *priv; |
| unsigned long board = z->resource.start; |
| unsigned long base_addr = board + A2065_LANCE; |
| unsigned long mem_start = board + A2065_RAM; |
| struct resource *r1, *r2; |
| u32 serial; |
| int err; |
| |
| r1 = request_mem_region(base_addr, sizeof(struct lance_regs), |
| "Am7990"); |
| if (!r1) |
| return -EBUSY; |
| r2 = request_mem_region(mem_start, A2065_RAM_SIZE, "RAM"); |
| if (!r2) { |
| release_mem_region(base_addr, sizeof(struct lance_regs)); |
| return -EBUSY; |
| } |
| |
| dev = alloc_etherdev(sizeof(struct lance_private)); |
| if (dev == NULL) { |
| release_mem_region(base_addr, sizeof(struct lance_regs)); |
| release_mem_region(mem_start, A2065_RAM_SIZE); |
| return -ENOMEM; |
| } |
| |
| priv = netdev_priv(dev); |
| |
| r1->name = dev->name; |
| r2->name = dev->name; |
| |
| serial = be32_to_cpu(z->rom.er_SerialNumber); |
| dev->dev_addr[0] = 0x00; |
| if (z->id != ZORRO_PROD_AMERISTAR_A2065) { /* Commodore */ |
| dev->dev_addr[1] = 0x80; |
| dev->dev_addr[2] = 0x10; |
| } else { /* Ameristar */ |
| dev->dev_addr[1] = 0x00; |
| dev->dev_addr[2] = 0x9f; |
| } |
| dev->dev_addr[3] = (serial >> 16) & 0xff; |
| dev->dev_addr[4] = (serial >> 8) & 0xff; |
| dev->dev_addr[5] = serial & 0xff; |
| dev->base_addr = (unsigned long)ZTWO_VADDR(base_addr); |
| dev->mem_start = (unsigned long)ZTWO_VADDR(mem_start); |
| dev->mem_end = dev->mem_start + A2065_RAM_SIZE; |
| |
| priv->ll = (volatile struct lance_regs *)dev->base_addr; |
| priv->init_block = (struct lance_init_block *)dev->mem_start; |
| priv->lance_init_block = (struct lance_init_block *)A2065_RAM; |
| priv->auto_select = 0; |
| priv->busmaster_regval = LE_C3_BSWP; |
| |
| priv->lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS; |
| priv->lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS; |
| priv->rx_ring_mod_mask = RX_RING_MOD_MASK; |
| priv->tx_ring_mod_mask = TX_RING_MOD_MASK; |
| |
| dev->netdev_ops = &lance_netdev_ops; |
| dev->watchdog_timeo = 5*HZ; |
| dev->dma = 0; |
| |
| init_timer(&priv->multicast_timer); |
| priv->multicast_timer.data = (unsigned long) dev; |
| priv->multicast_timer.function = |
| (void (*)(unsigned long))lance_set_multicast; |
| |
| err = register_netdev(dev); |
| if (err) { |
| release_mem_region(base_addr, sizeof(struct lance_regs)); |
| release_mem_region(mem_start, A2065_RAM_SIZE); |
| free_netdev(dev); |
| return err; |
| } |
| zorro_set_drvdata(z, dev); |
| |
| netdev_info(dev, "A2065 at 0x%08lx, Ethernet Address %pM\n", |
| board, dev->dev_addr); |
| |
| return 0; |
| } |
| |
| |
| static void a2065_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 lance_regs)); |
| release_mem_region(ZTWO_PADDR(dev->mem_start), A2065_RAM_SIZE); |
| free_netdev(dev); |
| } |
| |
| static int __init a2065_init_module(void) |
| { |
| return zorro_register_driver(&a2065_driver); |
| } |
| |
| static void __exit a2065_cleanup_module(void) |
| { |
| zorro_unregister_driver(&a2065_driver); |
| } |
| |
| module_init(a2065_init_module); |
| module_exit(a2065_cleanup_module); |
| |
| MODULE_LICENSE("GPL"); |