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![Geert Uytterhoeven](/assets/img/avatar_default.png)
Use the print_hex_dump_debug() helper, instead of open-coding the same operations. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
782 lines
20 KiB
C
782 lines
20 KiB
C
/*
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* Amiga Linux/68k A2065 Ethernet Driver
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*
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* (C) Copyright 1995-2003 by Geert Uytterhoeven <geert@linux-m68k.org>
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*
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* Fixes and tips by:
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* - Janos Farkas (CHEXUM@sparta.banki.hu)
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* - Jes Degn Soerensen (jds@kom.auc.dk)
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* - Matt Domsch (Matt_Domsch@dell.com)
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*
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* ----------------------------------------------------------------------------
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*
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* This program is based on
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*
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* ariadne.?: Amiga Linux/68k Ariadne Ethernet Driver
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* (C) Copyright 1995 by Geert Uytterhoeven,
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* Peter De Schrijver
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*
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* lance.c: An AMD LANCE ethernet driver for linux.
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* Written 1993-94 by Donald Becker.
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*
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* Am79C960: PCnet(tm)-ISA Single-Chip Ethernet Controller
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* Advanced Micro Devices
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* Publication #16907, Rev. B, Amendment/0, May 1994
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*
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* ----------------------------------------------------------------------------
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of the Linux
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* distribution for more details.
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*
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* ----------------------------------------------------------------------------
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*
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* The A2065 is a Zorro-II board made by Commodore/Ameristar. It contains:
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*
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* - an Am7990 Local Area Network Controller for Ethernet (LANCE) with
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* both 10BASE-2 (thin coax) and AUI (DB-15) connectors
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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/*#define DEBUG*/
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/*#define TEST_HITS*/
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#include <linux/errno.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/module.h>
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#include <linux/stddef.h>
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#include <linux/kernel.h>
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#include <linux/interrupt.h>
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#include <linux/ioport.h>
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#include <linux/skbuff.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <linux/crc32.h>
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#include <linux/zorro.h>
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#include <linux/bitops.h>
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#include <asm/byteorder.h>
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#include <asm/irq.h>
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#include <asm/amigaints.h>
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#include <asm/amigahw.h>
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#include "a2065.h"
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/* Transmit/Receive Ring Definitions */
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#define LANCE_LOG_TX_BUFFERS (2)
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#define LANCE_LOG_RX_BUFFERS (4)
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#define TX_RING_SIZE (1 << LANCE_LOG_TX_BUFFERS)
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#define RX_RING_SIZE (1 << LANCE_LOG_RX_BUFFERS)
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#define TX_RING_MOD_MASK (TX_RING_SIZE - 1)
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#define RX_RING_MOD_MASK (RX_RING_SIZE - 1)
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#define PKT_BUF_SIZE (1544)
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#define RX_BUFF_SIZE PKT_BUF_SIZE
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#define TX_BUFF_SIZE PKT_BUF_SIZE
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/* Layout of the Lance's RAM Buffer */
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struct lance_init_block {
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unsigned short mode; /* Pre-set mode (reg. 15) */
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unsigned char phys_addr[6]; /* Physical ethernet address */
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unsigned filter[2]; /* Multicast filter. */
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/* Receive and transmit ring base, along with extra bits. */
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unsigned short rx_ptr; /* receive descriptor addr */
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unsigned short rx_len; /* receive len and high addr */
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unsigned short tx_ptr; /* transmit descriptor addr */
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unsigned short tx_len; /* transmit len and high addr */
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/* The Tx and Rx ring entries must aligned on 8-byte boundaries. */
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struct lance_rx_desc brx_ring[RX_RING_SIZE];
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struct lance_tx_desc btx_ring[TX_RING_SIZE];
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char rx_buf[RX_RING_SIZE][RX_BUFF_SIZE];
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char tx_buf[TX_RING_SIZE][TX_BUFF_SIZE];
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};
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/* Private Device Data */
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struct lance_private {
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char *name;
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volatile struct lance_regs *ll;
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volatile struct lance_init_block *init_block; /* Hosts view */
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volatile struct lance_init_block *lance_init_block; /* Lance view */
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int rx_new, tx_new;
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int rx_old, tx_old;
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int lance_log_rx_bufs, lance_log_tx_bufs;
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int rx_ring_mod_mask, tx_ring_mod_mask;
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int tpe; /* cable-selection is TPE */
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int auto_select; /* cable-selection by carrier */
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unsigned short busmaster_regval;
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struct timer_list multicast_timer;
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struct net_device *dev;
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};
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#define LANCE_ADDR(x) ((int)(x) & ~0xff000000)
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/* Load the CSR registers */
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static void load_csrs(struct lance_private *lp)
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{
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volatile struct lance_regs *ll = lp->ll;
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volatile struct lance_init_block *aib = lp->lance_init_block;
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int leptr = LANCE_ADDR(aib);
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ll->rap = LE_CSR1;
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ll->rdp = (leptr & 0xFFFF);
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ll->rap = LE_CSR2;
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ll->rdp = leptr >> 16;
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ll->rap = LE_CSR3;
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ll->rdp = lp->busmaster_regval;
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/* Point back to csr0 */
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ll->rap = LE_CSR0;
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}
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/* Setup the Lance Rx and Tx rings */
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static void lance_init_ring(struct net_device *dev)
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{
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struct lance_private *lp = netdev_priv(dev);
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volatile struct lance_init_block *ib = lp->init_block;
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volatile struct lance_init_block *aib = lp->lance_init_block;
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/* for LANCE_ADDR computations */
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int leptr;
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int i;
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/* Lock out other processes while setting up hardware */
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netif_stop_queue(dev);
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lp->rx_new = lp->tx_new = 0;
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lp->rx_old = lp->tx_old = 0;
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ib->mode = 0;
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/* Copy the ethernet address to the lance init block
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* Note that on the sparc you need to swap the ethernet address.
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*/
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ib->phys_addr[0] = dev->dev_addr[1];
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ib->phys_addr[1] = dev->dev_addr[0];
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ib->phys_addr[2] = dev->dev_addr[3];
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ib->phys_addr[3] = dev->dev_addr[2];
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ib->phys_addr[4] = dev->dev_addr[5];
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ib->phys_addr[5] = dev->dev_addr[4];
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/* Setup the Tx ring entries */
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netdev_dbg(dev, "TX rings:\n");
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for (i = 0; i <= 1 << lp->lance_log_tx_bufs; i++) {
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leptr = LANCE_ADDR(&aib->tx_buf[i][0]);
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ib->btx_ring[i].tmd0 = leptr;
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ib->btx_ring[i].tmd1_hadr = leptr >> 16;
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ib->btx_ring[i].tmd1_bits = 0;
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ib->btx_ring[i].length = 0xf000; /* The ones required by tmd2 */
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ib->btx_ring[i].misc = 0;
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if (i < 3)
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netdev_dbg(dev, "%d: 0x%08x\n", i, leptr);
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}
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/* Setup the Rx ring entries */
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netdev_dbg(dev, "RX rings:\n");
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for (i = 0; i < 1 << lp->lance_log_rx_bufs; i++) {
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leptr = LANCE_ADDR(&aib->rx_buf[i][0]);
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ib->brx_ring[i].rmd0 = leptr;
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ib->brx_ring[i].rmd1_hadr = leptr >> 16;
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ib->brx_ring[i].rmd1_bits = LE_R1_OWN;
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ib->brx_ring[i].length = -RX_BUFF_SIZE | 0xf000;
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ib->brx_ring[i].mblength = 0;
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if (i < 3)
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netdev_dbg(dev, "%d: 0x%08x\n", i, leptr);
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}
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/* Setup the initialization block */
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/* Setup rx descriptor pointer */
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leptr = LANCE_ADDR(&aib->brx_ring);
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ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16);
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ib->rx_ptr = leptr;
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netdev_dbg(dev, "RX ptr: %08x\n", leptr);
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/* Setup tx descriptor pointer */
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leptr = LANCE_ADDR(&aib->btx_ring);
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ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16);
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ib->tx_ptr = leptr;
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netdev_dbg(dev, "TX ptr: %08x\n", leptr);
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/* Clear the multicast filter */
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ib->filter[0] = 0;
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ib->filter[1] = 0;
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}
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static int init_restart_lance(struct lance_private *lp)
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{
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volatile struct lance_regs *ll = lp->ll;
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int i;
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ll->rap = LE_CSR0;
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ll->rdp = LE_C0_INIT;
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/* Wait for the lance to complete initialization */
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for (i = 0; (i < 100) && !(ll->rdp & (LE_C0_ERR | LE_C0_IDON)); i++)
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barrier();
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if ((i == 100) || (ll->rdp & LE_C0_ERR)) {
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pr_err("unopened after %d ticks, csr0=%04x\n", i, ll->rdp);
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return -EIO;
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}
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/* Clear IDON by writing a "1", enable interrupts and start lance */
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ll->rdp = LE_C0_IDON;
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ll->rdp = LE_C0_INEA | LE_C0_STRT;
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return 0;
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}
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static int lance_rx(struct net_device *dev)
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{
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struct lance_private *lp = netdev_priv(dev);
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volatile struct lance_init_block *ib = lp->init_block;
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volatile struct lance_regs *ll = lp->ll;
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volatile struct lance_rx_desc *rd;
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unsigned char bits;
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#ifdef TEST_HITS
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int i;
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char buf[RX_RING_SIZE + 1];
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for (i = 0; i < RX_RING_SIZE; i++) {
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char r1_own = ib->brx_ring[i].rmd1_bits & LE_R1_OWN;
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if (i == lp->rx_new)
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buf[i] = r1_own ? '_' : 'X';
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else
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buf[i] = r1_own ? '.' : '1';
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}
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buf[RX_RING_SIZE] = 0;
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pr_debug("RxRing TestHits: [%s]\n", buf);
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#endif
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ll->rdp = LE_C0_RINT | LE_C0_INEA;
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for (rd = &ib->brx_ring[lp->rx_new];
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!((bits = rd->rmd1_bits) & LE_R1_OWN);
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rd = &ib->brx_ring[lp->rx_new]) {
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/* We got an incomplete frame? */
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if ((bits & LE_R1_POK) != LE_R1_POK) {
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dev->stats.rx_over_errors++;
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dev->stats.rx_errors++;
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continue;
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} else if (bits & LE_R1_ERR) {
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/* Count only the end frame as a rx error,
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* not the beginning
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*/
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if (bits & LE_R1_BUF)
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dev->stats.rx_fifo_errors++;
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if (bits & LE_R1_CRC)
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dev->stats.rx_crc_errors++;
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if (bits & LE_R1_OFL)
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dev->stats.rx_over_errors++;
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if (bits & LE_R1_FRA)
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dev->stats.rx_frame_errors++;
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if (bits & LE_R1_EOP)
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dev->stats.rx_errors++;
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} else {
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int len = (rd->mblength & 0xfff) - 4;
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struct sk_buff *skb = netdev_alloc_skb(dev, len + 2);
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if (!skb) {
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dev->stats.rx_dropped++;
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rd->mblength = 0;
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rd->rmd1_bits = LE_R1_OWN;
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lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
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return 0;
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}
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skb_reserve(skb, 2); /* 16 byte align */
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skb_put(skb, len); /* make room */
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skb_copy_to_linear_data(skb,
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(unsigned char *)&ib->rx_buf[lp->rx_new][0],
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len);
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skb->protocol = eth_type_trans(skb, dev);
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netif_rx(skb);
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dev->stats.rx_packets++;
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dev->stats.rx_bytes += len;
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}
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/* Return the packet to the pool */
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rd->mblength = 0;
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rd->rmd1_bits = LE_R1_OWN;
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lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
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}
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return 0;
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}
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static int lance_tx(struct net_device *dev)
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{
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struct lance_private *lp = netdev_priv(dev);
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volatile struct lance_init_block *ib = lp->init_block;
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volatile struct lance_regs *ll = lp->ll;
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volatile struct lance_tx_desc *td;
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int i, j;
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int status;
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/* csr0 is 2f3 */
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ll->rdp = LE_C0_TINT | LE_C0_INEA;
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/* csr0 is 73 */
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j = lp->tx_old;
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for (i = j; i != lp->tx_new; i = j) {
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td = &ib->btx_ring[i];
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/* If we hit a packet not owned by us, stop */
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if (td->tmd1_bits & LE_T1_OWN)
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break;
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if (td->tmd1_bits & LE_T1_ERR) {
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status = td->misc;
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dev->stats.tx_errors++;
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if (status & LE_T3_RTY)
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dev->stats.tx_aborted_errors++;
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if (status & LE_T3_LCOL)
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dev->stats.tx_window_errors++;
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if (status & LE_T3_CLOS) {
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dev->stats.tx_carrier_errors++;
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if (lp->auto_select) {
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lp->tpe = 1 - lp->tpe;
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netdev_err(dev, "Carrier Lost, trying %s\n",
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lp->tpe ? "TPE" : "AUI");
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/* Stop the lance */
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ll->rap = LE_CSR0;
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ll->rdp = LE_C0_STOP;
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lance_init_ring(dev);
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load_csrs(lp);
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init_restart_lance(lp);
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return 0;
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}
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}
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/* buffer errors and underflows turn off
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* the transmitter, so restart the adapter
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*/
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if (status & (LE_T3_BUF | LE_T3_UFL)) {
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dev->stats.tx_fifo_errors++;
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netdev_err(dev, "Tx: ERR_BUF|ERR_UFL, restarting\n");
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/* Stop the lance */
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ll->rap = LE_CSR0;
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ll->rdp = LE_C0_STOP;
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lance_init_ring(dev);
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load_csrs(lp);
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init_restart_lance(lp);
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return 0;
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}
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} else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) {
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/* So we don't count the packet more than once. */
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td->tmd1_bits &= ~(LE_T1_POK);
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/* One collision before packet was sent. */
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if (td->tmd1_bits & LE_T1_EONE)
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dev->stats.collisions++;
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/* More than one collision, be optimistic. */
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if (td->tmd1_bits & LE_T1_EMORE)
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dev->stats.collisions += 2;
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dev->stats.tx_packets++;
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}
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j = (j + 1) & lp->tx_ring_mod_mask;
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}
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lp->tx_old = j;
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ll->rdp = LE_C0_TINT | LE_C0_INEA;
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return 0;
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}
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static int lance_tx_buffs_avail(struct lance_private *lp)
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{
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if (lp->tx_old <= lp->tx_new)
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return lp->tx_old + lp->tx_ring_mod_mask - lp->tx_new;
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return lp->tx_old - lp->tx_new - 1;
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}
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static irqreturn_t lance_interrupt(int irq, void *dev_id)
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{
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struct net_device *dev = dev_id;
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struct lance_private *lp = netdev_priv(dev);
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volatile struct lance_regs *ll = lp->ll;
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int csr0;
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ll->rap = LE_CSR0; /* LANCE Controller Status */
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csr0 = ll->rdp;
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if (!(csr0 & LE_C0_INTR)) /* Check if any interrupt has */
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return IRQ_NONE; /* been generated by the Lance. */
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/* Acknowledge all the interrupt sources ASAP */
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ll->rdp = csr0 & ~(LE_C0_INEA | LE_C0_TDMD | LE_C0_STOP | LE_C0_STRT |
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LE_C0_INIT);
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if (csr0 & LE_C0_ERR) {
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/* Clear the error condition */
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ll->rdp = LE_C0_BABL | LE_C0_ERR | LE_C0_MISS | LE_C0_INEA;
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}
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if (csr0 & LE_C0_RINT)
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lance_rx(dev);
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if (csr0 & LE_C0_TINT)
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lance_tx(dev);
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/* Log misc errors. */
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if (csr0 & LE_C0_BABL)
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dev->stats.tx_errors++; /* Tx babble. */
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if (csr0 & LE_C0_MISS)
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dev->stats.rx_errors++; /* Missed a Rx frame. */
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if (csr0 & LE_C0_MERR) {
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netdev_err(dev, "Bus master arbitration failure, status %04x\n",
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csr0);
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/* Restart the chip. */
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ll->rdp = LE_C0_STRT;
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}
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if (netif_queue_stopped(dev) && lance_tx_buffs_avail(lp) > 0)
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netif_wake_queue(dev);
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ll->rap = LE_CSR0;
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ll->rdp = (LE_C0_BABL | LE_C0_CERR | LE_C0_MISS | LE_C0_MERR |
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LE_C0_IDON | LE_C0_INEA);
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return IRQ_HANDLED;
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}
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static int lance_open(struct net_device *dev)
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{
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struct lance_private *lp = netdev_priv(dev);
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volatile struct lance_regs *ll = lp->ll;
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int ret;
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/* Stop the Lance */
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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);
|
|
netif_trans_update(dev); /* 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, unsigned int txqueue)
|
|
{
|
|
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;
|
|
|
|
/* dump the packet */
|
|
print_hex_dump_debug("skb->data: ", DUMP_PREFIX_NONE, 16, 1, skb->data,
|
|
64, true);
|
|
|
|
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 void lance_set_multicast_retry(struct timer_list *t)
|
|
{
|
|
struct lance_private *lp = from_timer(lp, t, multicast_timer);
|
|
|
|
lance_set_multicast(lp->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 const 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_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;
|
|
priv->dev = dev;
|
|
|
|
dev->netdev_ops = &lance_netdev_ops;
|
|
dev->watchdog_timeo = 5*HZ;
|
|
dev->dma = 0;
|
|
|
|
timer_setup(&priv->multicast_timer, lance_set_multicast_retry, 0);
|
|
|
|
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");
|