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![Joe Perches](/assets/img/avatar_default.png)
Not as fancy as coccinelle. Checkpatch errors ignored. Compile tested allyesconfig x86, not all files compiled. grep -rPl --include=*.[ch] "\brequest_irq\s*\([^,\)]+,\s*\&" drivers/net | while read file ; do \ perl -i -e 'local $/; while (<>) { s@(\brequest_irq\s*\([^,\)]+,\s*)\&@\1@g ; print ; }' $file ;\ done Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
671 lines
19 KiB
C
671 lines
19 KiB
C
/*
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* macsonic.c
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*
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* (C) 2005 Finn Thain
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*
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* Converted to DMA API, converted to unified driver model, made it work as
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* a module again, and from the mac68k project, introduced more 32-bit cards
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* and dhd's support for 16-bit cards.
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*
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* (C) 1998 Alan Cox
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*
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* Debugging Andreas Ehliar, Michael Schmitz
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*
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* Based on code
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* (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de)
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*
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* This driver is based on work from Andreas Busse, but most of
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* the code is rewritten.
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*
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* (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
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*
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* A driver for the Mac onboard Sonic ethernet chip.
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*
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* 98/12/21 MSch: judged from tests on Q800, it's basically working,
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* but eating up both receive and transmit resources
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* and duplicating packets. Needs more testing.
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*
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* 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed.
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*
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* 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems
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* on centris.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/fcntl.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/in.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/delay.h>
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#include <linux/nubus.h>
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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/skbuff.h>
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#include <linux/platform_device.h>
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#include <linux/dma-mapping.h>
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#include <linux/bitrev.h>
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#include <asm/bootinfo.h>
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#include <asm/system.h>
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#include <asm/pgtable.h>
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#include <asm/io.h>
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#include <asm/hwtest.h>
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#include <asm/dma.h>
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#include <asm/macintosh.h>
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#include <asm/macints.h>
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#include <asm/mac_via.h>
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static char mac_sonic_string[] = "macsonic";
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static struct platform_device *mac_sonic_device;
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#include "sonic.h"
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/* These should basically be bus-size and endian independent (since
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the SONIC is at least smart enough that it uses the same endianness
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as the host, unlike certain less enlightened Macintosh NICs) */
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#define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
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+ lp->reg_offset))
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#define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
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+ lp->reg_offset))
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/* use 0 for production, 1 for verification, >1 for debug */
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#ifdef SONIC_DEBUG
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static unsigned int sonic_debug = SONIC_DEBUG;
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#else
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static unsigned int sonic_debug = 1;
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#endif
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static int sonic_version_printed;
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/* For onboard SONIC */
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#define ONBOARD_SONIC_REGISTERS 0x50F0A000
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#define ONBOARD_SONIC_PROM_BASE 0x50f08000
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enum macsonic_type {
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MACSONIC_DUODOCK,
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MACSONIC_APPLE,
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MACSONIC_APPLE16,
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MACSONIC_DAYNA,
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MACSONIC_DAYNALINK
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};
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/* For the built-in SONIC in the Duo Dock */
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#define DUODOCK_SONIC_REGISTERS 0xe10000
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#define DUODOCK_SONIC_PROM_BASE 0xe12000
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/* For Apple-style NuBus SONIC */
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#define APPLE_SONIC_REGISTERS 0
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#define APPLE_SONIC_PROM_BASE 0x40000
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/* Daynalink LC SONIC */
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#define DAYNALINK_PROM_BASE 0x400000
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/* For Dayna-style NuBus SONIC (haven't seen one yet) */
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#define DAYNA_SONIC_REGISTERS 0x180000
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/* This is what OpenBSD says. However, this is definitely in NuBus
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ROM space so we should be able to get it by walking the NuBus
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resource directories */
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#define DAYNA_SONIC_MAC_ADDR 0xffe004
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#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
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/*
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* For reversing the PROM address
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*/
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static inline void bit_reverse_addr(unsigned char addr[6])
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{
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int i;
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for(i = 0; i < 6; i++)
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addr[i] = bitrev8(addr[i]);
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}
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static irqreturn_t macsonic_interrupt(int irq, void *dev_id)
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{
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irqreturn_t result;
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unsigned long flags;
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local_irq_save(flags);
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result = sonic_interrupt(irq, dev_id);
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local_irq_restore(flags);
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return result;
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}
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static int macsonic_open(struct net_device* dev)
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{
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if (request_irq(dev->irq, sonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
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printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
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return -EAGAIN;
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}
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/* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes
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* in at priority level 3. However, we sometimes get the level 2 inter-
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* rupt as well, which must prevent re-entrance of the sonic handler.
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*/
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if (dev->irq == IRQ_AUTO_3)
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if (request_irq(IRQ_NUBUS_9, macsonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
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printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, IRQ_NUBUS_9);
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free_irq(dev->irq, dev);
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return -EAGAIN;
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}
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return sonic_open(dev);
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}
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static int macsonic_close(struct net_device* dev)
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{
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int err;
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err = sonic_close(dev);
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free_irq(dev->irq, dev);
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if (dev->irq == IRQ_AUTO_3)
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free_irq(IRQ_NUBUS_9, dev);
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return err;
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}
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static const struct net_device_ops macsonic_netdev_ops = {
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.ndo_open = macsonic_open,
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.ndo_stop = macsonic_close,
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.ndo_start_xmit = sonic_send_packet,
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.ndo_set_multicast_list = sonic_multicast_list,
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.ndo_tx_timeout = sonic_tx_timeout,
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.ndo_get_stats = sonic_get_stats,
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.ndo_validate_addr = eth_validate_addr,
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.ndo_change_mtu = eth_change_mtu,
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.ndo_set_mac_address = eth_mac_addr,
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};
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static int __devinit macsonic_init(struct net_device *dev)
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{
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struct sonic_local* lp = netdev_priv(dev);
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/* Allocate the entire chunk of memory for the descriptors.
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Note that this cannot cross a 64K boundary. */
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if ((lp->descriptors = dma_alloc_coherent(lp->device,
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SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
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&lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
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printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n",
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dev_name(lp->device));
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return -ENOMEM;
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}
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/* Now set up the pointers to point to the appropriate places */
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lp->cda = lp->descriptors;
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lp->tda = lp->cda + (SIZEOF_SONIC_CDA
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* SONIC_BUS_SCALE(lp->dma_bitmode));
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lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
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* SONIC_BUS_SCALE(lp->dma_bitmode));
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lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
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* SONIC_BUS_SCALE(lp->dma_bitmode));
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lp->cda_laddr = lp->descriptors_laddr;
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lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
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* SONIC_BUS_SCALE(lp->dma_bitmode));
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lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
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* SONIC_BUS_SCALE(lp->dma_bitmode));
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lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
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* SONIC_BUS_SCALE(lp->dma_bitmode));
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dev->netdev_ops = &macsonic_netdev_ops;
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dev->watchdog_timeo = TX_TIMEOUT;
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/*
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* clear tally counter
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*/
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SONIC_WRITE(SONIC_CRCT, 0xffff);
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SONIC_WRITE(SONIC_FAET, 0xffff);
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SONIC_WRITE(SONIC_MPT, 0xffff);
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return 0;
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}
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#define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \
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memcmp(mac, "\x00\xA0\x40", 3) && \
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memcmp(mac, "\x00\x80\x19", 3) && \
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memcmp(mac, "\x00\x05\x02", 3))
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static void __devinit mac_onboard_sonic_ethernet_addr(struct net_device *dev)
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{
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struct sonic_local *lp = netdev_priv(dev);
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const int prom_addr = ONBOARD_SONIC_PROM_BASE;
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unsigned short val;
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/*
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* On NuBus boards we can sometimes look in the ROM resources.
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* No such luck for comm-slot/onboard.
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* On the PowerBook 520, the PROM base address is a mystery.
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*/
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if (hwreg_present((void *)prom_addr)) {
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int i;
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for (i = 0; i < 6; i++)
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dev->dev_addr[i] = SONIC_READ_PROM(i);
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if (!INVALID_MAC(dev->dev_addr))
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return;
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/*
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* Most of the time, the address is bit-reversed. The NetBSD
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* source has a rather long and detailed historical account of
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* why this is so.
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*/
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bit_reverse_addr(dev->dev_addr);
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if (!INVALID_MAC(dev->dev_addr))
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return;
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/*
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* If we still have what seems to be a bogus address, we'll
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* look in the CAM. The top entry should be ours.
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*/
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printk(KERN_WARNING "macsonic: MAC address in PROM seems "
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"to be invalid, trying CAM\n");
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} else {
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printk(KERN_WARNING "macsonic: cannot read MAC address from "
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"PROM, trying CAM\n");
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}
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/* This only works if MacOS has already initialized the card. */
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SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
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SONIC_WRITE(SONIC_CEP, 15);
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val = SONIC_READ(SONIC_CAP2);
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dev->dev_addr[5] = val >> 8;
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dev->dev_addr[4] = val & 0xff;
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val = SONIC_READ(SONIC_CAP1);
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dev->dev_addr[3] = val >> 8;
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dev->dev_addr[2] = val & 0xff;
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val = SONIC_READ(SONIC_CAP0);
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dev->dev_addr[1] = val >> 8;
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dev->dev_addr[0] = val & 0xff;
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if (!INVALID_MAC(dev->dev_addr))
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return;
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/* Still nonsense ... messed up someplace! */
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printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 "
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"seems invalid, will use a random MAC\n");
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random_ether_addr(dev->dev_addr);
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}
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static int __devinit mac_onboard_sonic_probe(struct net_device *dev)
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{
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/* Bwahahaha */
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static int once_is_more_than_enough;
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struct sonic_local* lp = netdev_priv(dev);
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int sr;
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int commslot = 0;
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if (once_is_more_than_enough)
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return -ENODEV;
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once_is_more_than_enough = 1;
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if (!MACH_IS_MAC)
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return -ENODEV;
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if (macintosh_config->ether_type != MAC_ETHER_SONIC)
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return -ENODEV;
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printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
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/* Bogus probing, on the models which may or may not have
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Ethernet (BTW, the Ethernet *is* always at the same
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address, and nothing else lives there, at least if Apple's
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documentation is to be believed) */
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if (macintosh_config->ident == MAC_MODEL_Q630 ||
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macintosh_config->ident == MAC_MODEL_P588 ||
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macintosh_config->ident == MAC_MODEL_P575 ||
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macintosh_config->ident == MAC_MODEL_C610) {
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unsigned long flags;
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int card_present;
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local_irq_save(flags);
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card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
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local_irq_restore(flags);
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if (!card_present) {
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printk("none.\n");
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return -ENODEV;
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}
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commslot = 1;
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}
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printk("yes\n");
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/* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
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* and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
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dev->base_addr = ONBOARD_SONIC_REGISTERS;
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if (via_alt_mapping)
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dev->irq = IRQ_AUTO_3;
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else
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dev->irq = IRQ_NUBUS_9;
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if (!sonic_version_printed) {
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printk(KERN_INFO "%s", version);
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sonic_version_printed = 1;
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}
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printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
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dev_name(lp->device), dev->base_addr);
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/* The PowerBook's SONIC is 16 bit always. */
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if (macintosh_config->ident == MAC_MODEL_PB520) {
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lp->reg_offset = 0;
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lp->dma_bitmode = SONIC_BITMODE16;
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sr = SONIC_READ(SONIC_SR);
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} else if (commslot) {
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/* Some of the comm-slot cards are 16 bit. But some
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of them are not. The 32-bit cards use offset 2 and
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have known revisions, we try reading the revision
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register at offset 2, if we don't get a known revision
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we assume 16 bit at offset 0. */
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lp->reg_offset = 2;
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lp->dma_bitmode = SONIC_BITMODE16;
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sr = SONIC_READ(SONIC_SR);
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if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
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/* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
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lp->dma_bitmode = SONIC_BITMODE32;
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else {
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lp->dma_bitmode = SONIC_BITMODE16;
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lp->reg_offset = 0;
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sr = SONIC_READ(SONIC_SR);
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}
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} else {
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/* All onboard cards are at offset 2 with 32 bit DMA. */
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lp->reg_offset = 2;
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lp->dma_bitmode = SONIC_BITMODE32;
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sr = SONIC_READ(SONIC_SR);
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}
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printk(KERN_INFO
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"%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
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dev_name(lp->device), sr, lp->dma_bitmode?32:16, lp->reg_offset);
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#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
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printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
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SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
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#endif
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/* Software reset, then initialize control registers. */
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SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
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SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
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SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
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(lp->dma_bitmode ? SONIC_DCR_DW : 0));
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/* This *must* be written back to in order to restore the
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* extended programmable output bits, as it may not have been
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* initialised since the hardware reset. */
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SONIC_WRITE(SONIC_DCR2, 0);
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/* Clear *and* disable interrupts to be on the safe side */
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SONIC_WRITE(SONIC_IMR, 0);
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SONIC_WRITE(SONIC_ISR, 0x7fff);
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/* Now look for the MAC address. */
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mac_onboard_sonic_ethernet_addr(dev);
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/* Shared init code */
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return macsonic_init(dev);
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}
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static int __devinit mac_nubus_sonic_ethernet_addr(struct net_device *dev,
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unsigned long prom_addr,
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int id)
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{
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int i;
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for(i = 0; i < 6; i++)
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dev->dev_addr[i] = SONIC_READ_PROM(i);
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/* Some of the addresses are bit-reversed */
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if (id != MACSONIC_DAYNA)
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bit_reverse_addr(dev->dev_addr);
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return 0;
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}
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static int __devinit macsonic_ident(struct nubus_dev *ndev)
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{
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if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
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ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
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return MACSONIC_DAYNALINK;
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if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
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ndev->dr_sw == NUBUS_DRSW_APPLE) {
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/* There has to be a better way to do this... */
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if (strstr(ndev->board->name, "DuoDock"))
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return MACSONIC_DUODOCK;
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else
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return MACSONIC_APPLE;
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}
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if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
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ndev->dr_sw == NUBUS_DRSW_DAYNA)
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return MACSONIC_DAYNA;
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if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
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ndev->dr_sw == 0) { /* huh? */
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return MACSONIC_APPLE16;
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}
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return -1;
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}
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static int __devinit mac_nubus_sonic_probe(struct net_device *dev)
|
|
{
|
|
static int slots;
|
|
struct nubus_dev* ndev = NULL;
|
|
struct sonic_local* lp = netdev_priv(dev);
|
|
unsigned long base_addr, prom_addr;
|
|
u16 sonic_dcr;
|
|
int id = -1;
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|
int reg_offset, dma_bitmode;
|
|
|
|
/* Find the first SONIC that hasn't been initialized already */
|
|
while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
|
|
NUBUS_TYPE_ETHERNET, ndev)) != NULL)
|
|
{
|
|
/* Have we seen it already? */
|
|
if (slots & (1<<ndev->board->slot))
|
|
continue;
|
|
slots |= 1<<ndev->board->slot;
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|
|
|
/* Is it one of ours? */
|
|
if ((id = macsonic_ident(ndev)) != -1)
|
|
break;
|
|
}
|
|
|
|
if (ndev == NULL)
|
|
return -ENODEV;
|
|
|
|
switch (id) {
|
|
case MACSONIC_DUODOCK:
|
|
base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
|
|
prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
|
|
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
|
|
SONIC_DCR_TFT0;
|
|
reg_offset = 2;
|
|
dma_bitmode = SONIC_BITMODE32;
|
|
break;
|
|
case MACSONIC_APPLE:
|
|
base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
|
|
prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
|
|
sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
|
|
reg_offset = 0;
|
|
dma_bitmode = SONIC_BITMODE32;
|
|
break;
|
|
case MACSONIC_APPLE16:
|
|
base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
|
|
prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
|
|
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
|
|
SONIC_DCR_PO1 | SONIC_DCR_BMS;
|
|
reg_offset = 0;
|
|
dma_bitmode = SONIC_BITMODE16;
|
|
break;
|
|
case MACSONIC_DAYNALINK:
|
|
base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
|
|
prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
|
|
sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
|
|
SONIC_DCR_PO1 | SONIC_DCR_BMS;
|
|
reg_offset = 0;
|
|
dma_bitmode = SONIC_BITMODE16;
|
|
break;
|
|
case MACSONIC_DAYNA:
|
|
base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
|
|
prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
|
|
sonic_dcr = SONIC_DCR_BMS |
|
|
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
|
|
reg_offset = 0;
|
|
dma_bitmode = SONIC_BITMODE16;
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
|
|
* and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
|
|
dev->base_addr = base_addr;
|
|
lp->reg_offset = reg_offset;
|
|
lp->dma_bitmode = dma_bitmode;
|
|
dev->irq = SLOT2IRQ(ndev->board->slot);
|
|
|
|
if (!sonic_version_printed) {
|
|
printk(KERN_INFO "%s", version);
|
|
sonic_version_printed = 1;
|
|
}
|
|
printk(KERN_INFO "%s: %s in slot %X\n",
|
|
dev_name(lp->device), ndev->board->name, ndev->board->slot);
|
|
printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
|
|
dev_name(lp->device), SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
|
|
|
|
#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
|
|
printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
|
|
SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
|
|
#endif
|
|
|
|
/* Software reset, then initialize control registers. */
|
|
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
|
|
SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
|
|
/* This *must* be written back to in order to restore the
|
|
* extended programmable output bits, since it may not have been
|
|
* initialised since the hardware reset. */
|
|
SONIC_WRITE(SONIC_DCR2, 0);
|
|
|
|
/* Clear *and* disable interrupts to be on the safe side */
|
|
SONIC_WRITE(SONIC_IMR, 0);
|
|
SONIC_WRITE(SONIC_ISR, 0x7fff);
|
|
|
|
/* Now look for the MAC address. */
|
|
if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
|
|
return -ENODEV;
|
|
|
|
/* Shared init code */
|
|
return macsonic_init(dev);
|
|
}
|
|
|
|
static int __devinit mac_sonic_probe(struct platform_device *pdev)
|
|
{
|
|
struct net_device *dev;
|
|
struct sonic_local *lp;
|
|
int err;
|
|
|
|
dev = alloc_etherdev(sizeof(struct sonic_local));
|
|
if (!dev)
|
|
return -ENOMEM;
|
|
|
|
lp = netdev_priv(dev);
|
|
lp->device = &pdev->dev;
|
|
SET_NETDEV_DEV(dev, &pdev->dev);
|
|
platform_set_drvdata(pdev, dev);
|
|
|
|
/* This will catch fatal stuff like -ENOMEM as well as success */
|
|
err = mac_onboard_sonic_probe(dev);
|
|
if (err == 0)
|
|
goto found;
|
|
if (err != -ENODEV)
|
|
goto out;
|
|
err = mac_nubus_sonic_probe(dev);
|
|
if (err)
|
|
goto out;
|
|
found:
|
|
err = register_netdev(dev);
|
|
if (err)
|
|
goto out;
|
|
|
|
printk("%s: MAC %pM IRQ %d\n", dev->name, dev->dev_addr, dev->irq);
|
|
|
|
return 0;
|
|
|
|
out:
|
|
free_netdev(dev);
|
|
|
|
return err;
|
|
}
|
|
|
|
MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
|
|
module_param(sonic_debug, int, 0);
|
|
MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
|
|
|
|
#include "sonic.c"
|
|
|
|
static int __devexit mac_sonic_device_remove (struct platform_device *pdev)
|
|
{
|
|
struct net_device *dev = platform_get_drvdata(pdev);
|
|
struct sonic_local* lp = netdev_priv(dev);
|
|
|
|
unregister_netdev(dev);
|
|
dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
|
|
lp->descriptors, lp->descriptors_laddr);
|
|
free_netdev(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver mac_sonic_driver = {
|
|
.probe = mac_sonic_probe,
|
|
.remove = __devexit_p(mac_sonic_device_remove),
|
|
.driver = {
|
|
.name = mac_sonic_string,
|
|
},
|
|
};
|
|
|
|
static int __init mac_sonic_init_module(void)
|
|
{
|
|
int err;
|
|
|
|
if ((err = platform_driver_register(&mac_sonic_driver))) {
|
|
printk(KERN_ERR "Driver registration failed\n");
|
|
return err;
|
|
}
|
|
|
|
mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
|
|
if (!mac_sonic_device)
|
|
goto out_unregister;
|
|
|
|
if (platform_device_add(mac_sonic_device)) {
|
|
platform_device_put(mac_sonic_device);
|
|
mac_sonic_device = NULL;
|
|
}
|
|
|
|
return 0;
|
|
|
|
out_unregister:
|
|
platform_driver_unregister(&mac_sonic_driver);
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void __exit mac_sonic_cleanup_module(void)
|
|
{
|
|
platform_driver_unregister(&mac_sonic_driver);
|
|
|
|
if (mac_sonic_device) {
|
|
platform_device_unregister(mac_sonic_device);
|
|
mac_sonic_device = NULL;
|
|
}
|
|
}
|
|
|
|
module_init(mac_sonic_init_module);
|
|
module_exit(mac_sonic_cleanup_module);
|