diff options
Diffstat (limited to 'drivers/net/macsonic.c')
| -rw-r--r-- | drivers/net/macsonic.c | 666 |
1 files changed, 0 insertions, 666 deletions
diff --git a/drivers/net/macsonic.c b/drivers/net/macsonic.c deleted file mode 100644 index c93679ee6994..000000000000 --- a/drivers/net/macsonic.c +++ /dev/null @@ -1,666 +0,0 @@ -/* - * macsonic.c - * - * (C) 2005 Finn Thain - * - * Converted to DMA API, converted to unified driver model, made it work as - * a module again, and from the mac68k project, introduced more 32-bit cards - * and dhd's support for 16-bit cards. - * - * (C) 1998 Alan Cox - * - * Debugging Andreas Ehliar, Michael Schmitz - * - * Based on code - * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de) - * - * This driver is based on work from Andreas Busse, but most of - * the code is rewritten. - * - * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de) - * - * A driver for the Mac onboard Sonic ethernet chip. - * - * 98/12/21 MSch: judged from tests on Q800, it's basically working, - * but eating up both receive and transmit resources - * and duplicating packets. Needs more testing. - * - * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed. - * - * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems - * on centris. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/gfp.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/string.h> -#include <linux/delay.h> -#include <linux/nubus.h> -#include <linux/errno.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/platform_device.h> -#include <linux/dma-mapping.h> -#include <linux/bitrev.h> -#include <linux/slab.h> - -#include <asm/bootinfo.h> -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/io.h> -#include <asm/hwtest.h> -#include <asm/dma.h> -#include <asm/macintosh.h> -#include <asm/macints.h> -#include <asm/mac_via.h> - -static char mac_sonic_string[] = "macsonic"; - -#include "sonic.h" - -/* These should basically be bus-size and endian independent (since - the SONIC is at least smart enough that it uses the same endianness - as the host, unlike certain less enlightened Macintosh NICs) */ -#define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \ - + lp->reg_offset)) -#define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \ - + lp->reg_offset)) - -/* use 0 for production, 1 for verification, >1 for debug */ -#ifdef SONIC_DEBUG -static unsigned int sonic_debug = SONIC_DEBUG; -#else -static unsigned int sonic_debug = 1; -#endif - -static int sonic_version_printed; - -/* For onboard SONIC */ -#define ONBOARD_SONIC_REGISTERS 0x50F0A000 -#define ONBOARD_SONIC_PROM_BASE 0x50f08000 - -enum macsonic_type { - MACSONIC_DUODOCK, - MACSONIC_APPLE, - MACSONIC_APPLE16, - MACSONIC_DAYNA, - MACSONIC_DAYNALINK -}; - -/* For the built-in SONIC in the Duo Dock */ -#define DUODOCK_SONIC_REGISTERS 0xe10000 -#define DUODOCK_SONIC_PROM_BASE 0xe12000 - -/* For Apple-style NuBus SONIC */ -#define APPLE_SONIC_REGISTERS 0 -#define APPLE_SONIC_PROM_BASE 0x40000 - -/* Daynalink LC SONIC */ -#define DAYNALINK_PROM_BASE 0x400000 - -/* For Dayna-style NuBus SONIC (haven't seen one yet) */ -#define DAYNA_SONIC_REGISTERS 0x180000 -/* This is what OpenBSD says. However, this is definitely in NuBus - ROM space so we should be able to get it by walking the NuBus - resource directories */ -#define DAYNA_SONIC_MAC_ADDR 0xffe004 - -#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr) - -/* - * For reversing the PROM address - */ - -static inline void bit_reverse_addr(unsigned char addr[6]) -{ - int i; - - for(i = 0; i < 6; i++) - addr[i] = bitrev8(addr[i]); -} - -static irqreturn_t macsonic_interrupt(int irq, void *dev_id) -{ - irqreturn_t result; - unsigned long flags; - - local_irq_save(flags); - result = sonic_interrupt(irq, dev_id); - local_irq_restore(flags); - return result; -} - -static int macsonic_open(struct net_device* dev) -{ - int retval; - - retval = request_irq(dev->irq, sonic_interrupt, IRQ_FLG_FAST, - "sonic", dev); - if (retval) { - printk(KERN_ERR "%s: unable to get IRQ %d.\n", - dev->name, dev->irq); - goto err; - } - /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes - * in at priority level 3. However, we sometimes get the level 2 inter- - * rupt as well, which must prevent re-entrance of the sonic handler. - */ - if (dev->irq == IRQ_AUTO_3) { - retval = request_irq(IRQ_NUBUS_9, macsonic_interrupt, - IRQ_FLG_FAST, "sonic", dev); - if (retval) { - printk(KERN_ERR "%s: unable to get IRQ %d.\n", - dev->name, IRQ_NUBUS_9); - goto err_irq; - } - } - retval = sonic_open(dev); - if (retval) - goto err_irq_nubus; - return 0; - -err_irq_nubus: - if (dev->irq == IRQ_AUTO_3) - free_irq(IRQ_NUBUS_9, dev); -err_irq: - free_irq(dev->irq, dev); -err: - return retval; -} - -static int macsonic_close(struct net_device* dev) -{ - int err; - err = sonic_close(dev); - free_irq(dev->irq, dev); - if (dev->irq == IRQ_AUTO_3) - free_irq(IRQ_NUBUS_9, dev); - return err; -} - -static const struct net_device_ops macsonic_netdev_ops = { - .ndo_open = macsonic_open, - .ndo_stop = macsonic_close, - .ndo_start_xmit = sonic_send_packet, - .ndo_set_multicast_list = sonic_multicast_list, - .ndo_tx_timeout = sonic_tx_timeout, - .ndo_get_stats = sonic_get_stats, - .ndo_validate_addr = eth_validate_addr, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, -}; - -static int __devinit macsonic_init(struct net_device *dev) -{ - struct sonic_local* lp = netdev_priv(dev); - - /* Allocate the entire chunk of memory for the descriptors. - Note that this cannot cross a 64K boundary. */ - if ((lp->descriptors = dma_alloc_coherent(lp->device, - SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), - &lp->descriptors_laddr, GFP_KERNEL)) == NULL) { - printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", - dev_name(lp->device)); - return -ENOMEM; - } - - /* Now set up the pointers to point to the appropriate places */ - lp->cda = lp->descriptors; - lp->tda = lp->cda + (SIZEOF_SONIC_CDA - * SONIC_BUS_SCALE(lp->dma_bitmode)); - lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS - * SONIC_BUS_SCALE(lp->dma_bitmode)); - lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS - * SONIC_BUS_SCALE(lp->dma_bitmode)); - - lp->cda_laddr = lp->descriptors_laddr; - lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA - * SONIC_BUS_SCALE(lp->dma_bitmode)); - lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS - * SONIC_BUS_SCALE(lp->dma_bitmode)); - lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS - * SONIC_BUS_SCALE(lp->dma_bitmode)); - - dev->netdev_ops = &macsonic_netdev_ops; - dev->watchdog_timeo = TX_TIMEOUT; - - /* - * clear tally counter - */ - SONIC_WRITE(SONIC_CRCT, 0xffff); - SONIC_WRITE(SONIC_FAET, 0xffff); - SONIC_WRITE(SONIC_MPT, 0xffff); - - return 0; -} - -#define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \ - memcmp(mac, "\x00\xA0\x40", 3) && \ - memcmp(mac, "\x00\x80\x19", 3) && \ - memcmp(mac, "\x00\x05\x02", 3)) - -static void __devinit mac_onboard_sonic_ethernet_addr(struct net_device *dev) -{ - struct sonic_local *lp = netdev_priv(dev); - const int prom_addr = ONBOARD_SONIC_PROM_BASE; - unsigned short val; - - /* - * On NuBus boards we can sometimes look in the ROM resources. - * No such luck for comm-slot/onboard. - * On the PowerBook 520, the PROM base address is a mystery. - */ - if (hwreg_present((void *)prom_addr)) { - int i; - - for (i = 0; i < 6; i++) - dev->dev_addr[i] = SONIC_READ_PROM(i); - if (!INVALID_MAC(dev->dev_addr)) - return; - - /* - * Most of the time, the address is bit-reversed. The NetBSD - * source has a rather long and detailed historical account of - * why this is so. - */ - bit_reverse_addr(dev->dev_addr); - if (!INVALID_MAC(dev->dev_addr)) - return; - - /* - * If we still have what seems to be a bogus address, we'll - * look in the CAM. The top entry should be ours. - */ - printk(KERN_WARNING "macsonic: MAC address in PROM seems " - "to be invalid, trying CAM\n"); - } else { - printk(KERN_WARNING "macsonic: cannot read MAC address from " - "PROM, trying CAM\n"); - } - - /* This only works if MacOS has already initialized the card. */ - - SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); - SONIC_WRITE(SONIC_CEP, 15); - - val = SONIC_READ(SONIC_CAP2); - dev->dev_addr[5] = val >> 8; - dev->dev_addr[4] = val & 0xff; - val = SONIC_READ(SONIC_CAP1); - dev->dev_addr[3] = val >> 8; - dev->dev_addr[2] = val & 0xff; - val = SONIC_READ(SONIC_CAP0); - dev->dev_addr[1] = val >> 8; - dev->dev_addr[0] = val & 0xff; - - if (!INVALID_MAC(dev->dev_addr)) - return; - - /* Still nonsense ... messed up someplace! */ - - printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 " - "seems invalid, will use a random MAC\n"); - random_ether_addr(dev->dev_addr); -} - -static int __devinit mac_onboard_sonic_probe(struct net_device *dev) -{ - /* Bwahahaha */ - static int once_is_more_than_enough; - struct sonic_local* lp = netdev_priv(dev); - int sr; - int commslot = 0; - - if (once_is_more_than_enough) - return -ENODEV; - once_is_more_than_enough = 1; - - if (!MACH_IS_MAC) - return -ENODEV; - - if (macintosh_config->ether_type != MAC_ETHER_SONIC) - return -ENODEV; - - printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. "); - - /* Bogus probing, on the models which may or may not have - Ethernet (BTW, the Ethernet *is* always at the same - address, and nothing else lives there, at least if Apple's - documentation is to be believed) */ - if (macintosh_config->ident == MAC_MODEL_Q630 || - macintosh_config->ident == MAC_MODEL_P588 || - macintosh_config->ident == MAC_MODEL_P575 || - macintosh_config->ident == MAC_MODEL_C610) { - unsigned long flags; - int card_present; - - local_irq_save(flags); - card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS); - local_irq_restore(flags); - - if (!card_present) { - printk("none.\n"); - return -ENODEV; - } - commslot = 1; - } - - printk("yes\n"); - - /* 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 = ONBOARD_SONIC_REGISTERS; - if (via_alt_mapping) - dev->irq = IRQ_AUTO_3; - else - dev->irq = IRQ_NUBUS_9; - - if (!sonic_version_printed) { - printk(KERN_INFO "%s", version); - sonic_version_printed = 1; - } - printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n", - dev_name(lp->device), dev->base_addr); - - /* The PowerBook's SONIC is 16 bit always. */ - if (macintosh_config->ident == MAC_MODEL_PB520) { - lp->reg_offset = 0; - lp->dma_bitmode = SONIC_BITMODE16; - sr = SONIC_READ(SONIC_SR); - } else if (commslot) { - /* Some of the comm-slot cards are 16 bit. But some - of them are not. The 32-bit cards use offset 2 and - have known revisions, we try reading the revision - register at offset 2, if we don't get a known revision - we assume 16 bit at offset 0. */ - lp->reg_offset = 2; - lp->dma_bitmode = SONIC_BITMODE16; - - sr = SONIC_READ(SONIC_SR); - if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101) - /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */ - lp->dma_bitmode = SONIC_BITMODE32; - else { - lp->dma_bitmode = SONIC_BITMODE16; - lp->reg_offset = 0; - sr = SONIC_READ(SONIC_SR); - } - } else { - /* All onboard cards are at offset 2 with 32 bit DMA. */ - lp->reg_offset = 2; - lp->dma_bitmode = SONIC_BITMODE32; - sr = SONIC_READ(SONIC_SR); - } - printk(KERN_INFO - "%s: revision 0x%04x, using %d bit DMA and register offset %d\n", - dev_name(lp->device), sr, lp->dma_bitmode?32:16, lp->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_EXBUS | SONIC_DCR_BMS | - SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | - (lp->dma_bitmode ? SONIC_DCR_DW : 0)); - - /* This *must* be written back to in order to restore the - * extended programmable output bits, as 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. */ - mac_onboard_sonic_ethernet_addr(dev); - - /* Shared init code */ - return macsonic_init(dev); -} - -static int __devinit mac_nubus_sonic_ethernet_addr(struct net_device *dev, - unsigned long prom_addr, - int id) -{ - int i; - for(i = 0; i < 6; i++) - dev->dev_addr[i] = SONIC_READ_PROM(i); - - /* Some of the addresses are bit-reversed */ - if (id != MACSONIC_DAYNA) - bit_reverse_addr(dev->dev_addr); - - return 0; -} - -static int __devinit macsonic_ident(struct nubus_dev *ndev) -{ - if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC && - ndev->dr_sw == NUBUS_DRSW_SONIC_LC) - return MACSONIC_DAYNALINK; - if (ndev->dr_hw == NUBUS_DRHW_SONIC && - ndev->dr_sw == NUBUS_DRSW_APPLE) { - /* There has to be a better way to do this... */ - if (strstr(ndev->board->name, "DuoDock")) - return MACSONIC_DUODOCK; - else - return MACSONIC_APPLE; - } - - if (ndev->dr_hw == NUBUS_DRHW_SMC9194 && - ndev->dr_sw == NUBUS_DRSW_DAYNA) - return MACSONIC_DAYNA; - - if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC && - ndev->dr_sw == 0) { /* huh? */ - return MACSONIC_APPLE16; - } - return -1; -} - -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; - 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; - - /* 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)"); -MODULE_ALIAS("platform:macsonic"); - -#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, - .owner = THIS_MODULE, - }, -}; - -static int __init mac_sonic_init_module(void) -{ - return platform_driver_register(&mac_sonic_driver); -} - -static void __exit mac_sonic_cleanup_module(void) -{ - platform_driver_unregister(&mac_sonic_driver); -} - -module_init(mac_sonic_init_module); -module_exit(mac_sonic_cleanup_module); |