diff options
Diffstat (limited to 'drivers/net/macsonic.c')
| -rw-r--r-- | drivers/net/macsonic.c | 657 |
1 files changed, 0 insertions, 657 deletions
diff --git a/drivers/net/macsonic.c b/drivers/net/macsonic.c deleted file mode 100644 index be28c65de72..00000000000 --- a/drivers/net/macsonic.c +++ /dev/null @@ -1,657 +0,0 @@ -/* - * macsonic.c - * - * (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/types.h> -#include <linux/ctype.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/slab.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/module.h> -#include <linux/bitops.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> - -#define SREGS_PAD(n) u16 n; - -#include "sonic.h" - -#define SONIC_READ(reg) \ - nubus_readl(base_addr+(reg)) -#define SONIC_WRITE(reg,val) \ - nubus_writel((val), base_addr+(reg)) -#define sonic_read(dev, reg) \ - nubus_readl((dev)->base_addr+(reg)) -#define sonic_write(dev, reg, val) \ - nubus_writel((val), (dev)->base_addr+(reg)) - - -static int sonic_debug; -static int sonic_version_printed; - -static int reg_offset; - -extern int mac_onboard_sonic_probe(struct net_device* dev); -extern int mac_nubus_sonic_probe(struct net_device* dev); - -/* 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) - -struct net_device * __init macsonic_probe(int unit) -{ - struct net_device *dev = alloc_etherdev(0); - int err; - - if (!dev) - return ERR_PTR(-ENOMEM); - - if (unit >= 0) - sprintf(dev->name, "eth%d", unit); - - SET_MODULE_OWNER(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 out1; - return dev; -out1: - kfree(dev->priv); -out: - free_netdev(dev); - return ERR_PTR(err); -} - -/* - * For reversing the PROM address - */ - -static unsigned char nibbletab[] = {0, 8, 4, 12, 2, 10, 6, 14, - 1, 9, 5, 13, 3, 11, 7, 15}; - -static inline void bit_reverse_addr(unsigned char addr[6]) -{ - int i; - - for(i = 0; i < 6; i++) - addr[i] = ((nibbletab[addr[i] & 0xf] << 4) | - nibbletab[(addr[i] >> 4) &0xf]); -} - -int __init macsonic_init(struct net_device* dev) -{ - struct sonic_local* lp = NULL; - int i; - - /* Allocate the entire chunk of memory for the descriptors. - Note that this cannot cross a 64K boundary. */ - for (i = 0; i < 20; i++) { - unsigned long desc_base, desc_top; - if((lp = kmalloc(sizeof(struct sonic_local), GFP_KERNEL | GFP_DMA)) == NULL) { - printk(KERN_ERR "%s: couldn't allocate descriptor buffers\n", dev->name); - return -ENOMEM; - } - - desc_base = (unsigned long) lp; - desc_top = desc_base + sizeof(struct sonic_local); - if ((desc_top & 0xffff) >= (desc_base & 0xffff)) - break; - /* Hmm. try again (FIXME: does this actually work?) */ - kfree(lp); - printk(KERN_DEBUG - "%s: didn't get continguous chunk [%08lx - %08lx], trying again\n", - dev->name, desc_base, desc_top); - } - - if (lp == NULL) { - printk(KERN_ERR "%s: tried 20 times to allocate descriptor buffers, giving up.\n", - dev->name); - return -ENOMEM; - } - - dev->priv = lp; - -#if 0 - /* this code is only here as a curiousity... mainly, where the - fuck did SONIC_BUS_SCALE come from, and what was it supposed - to do? the normal allocation works great for 32 bit stuffs.. */ - - /* Now set up the pointers to point to the appropriate places */ - lp->cda = lp->sonic_desc; - 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)); - -#endif - - memset(lp, 0, sizeof(struct sonic_local)); - - lp->cda_laddr = (unsigned int)&(lp->cda); - lp->tda_laddr = (unsigned int)lp->tda; - lp->rra_laddr = (unsigned int)lp->rra; - lp->rda_laddr = (unsigned int)lp->rda; - - /* FIXME, maybe we should use skbs */ - if ((lp->rba = (char *) - kmalloc(SONIC_NUM_RRS * SONIC_RBSIZE, GFP_KERNEL | GFP_DMA)) == NULL) { - printk(KERN_ERR "%s: couldn't allocate receive buffers\n", dev->name); - dev->priv = NULL; - kfree(lp); - return -ENOMEM; - } - - lp->rba_laddr = (unsigned int)lp->rba; - - { - int rs, ds; - - /* almost always 12*4096, but let's not take chances */ - rs = ((SONIC_NUM_RRS * SONIC_RBSIZE + 4095) / 4096) * 4096; - /* almost always under a page, but let's not take chances */ - ds = ((sizeof(struct sonic_local) + 4095) / 4096) * 4096; - kernel_set_cachemode(lp->rba, rs, IOMAP_NOCACHE_SER); - kernel_set_cachemode(lp, ds, IOMAP_NOCACHE_SER); - } - -#if 0 - flush_cache_all(); -#endif - - dev->open = sonic_open; - dev->stop = sonic_close; - dev->hard_start_xmit = sonic_send_packet; - dev->get_stats = sonic_get_stats; - dev->set_multicast_list = &sonic_multicast_list; - - /* - * clear tally counter - */ - sonic_write(dev, SONIC_CRCT, 0xffff); - sonic_write(dev, SONIC_FAET, 0xffff); - sonic_write(dev, SONIC_MPT, 0xffff); - - return 0; -} - -int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev) -{ - const int prom_addr = ONBOARD_SONIC_PROM_BASE; - int i; - - /* On NuBus boards we can sometimes look in the ROM resources. - No such luck for comm-slot/onboard. */ - for(i = 0; i < 6; i++) - dev->dev_addr[i] = SONIC_READ_PROM(i); - - /* 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. */ - if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) && - memcmp(dev->dev_addr, "\x00\xA0\x40", 3) && - memcmp(dev->dev_addr, "\x00\x05\x02", 3)) - bit_reverse_addr(dev->dev_addr); - else - return 0; - - /* If we still have what seems to be a bogus address, we'll - look in the CAM. The top entry should be ours. */ - /* Danger! This only works if MacOS has already initialized - the card... */ - if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) && - memcmp(dev->dev_addr, "\x00\xA0\x40", 3) && - memcmp(dev->dev_addr, "\x00\x05\x02", 3)) - { - unsigned short val; - - printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n"); - - sonic_write(dev, SONIC_CMD, SONIC_CR_RST); - sonic_write(dev, SONIC_CEP, 15); - - val = sonic_read(dev, SONIC_CAP2); - dev->dev_addr[5] = val >> 8; - dev->dev_addr[4] = val & 0xff; - val = sonic_read(dev, SONIC_CAP1); - dev->dev_addr[3] = val >> 8; - dev->dev_addr[2] = val & 0xff; - val = sonic_read(dev, SONIC_CAP0); - dev->dev_addr[1] = val >> 8; - dev->dev_addr[0] = val & 0xff; - - printk(KERN_INFO "HW Address from CAM 15: "); - for (i = 0; i < 6; i++) { - printk("%2.2x", dev->dev_addr[i]); - if (i < 5) - printk(":"); - } - printk("\n"); - } else return 0; - - if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) && - memcmp(dev->dev_addr, "\x00\xA0\x40", 3) && - memcmp(dev->dev_addr, "\x00\x05\x02", 3)) - { - /* - * Still nonsense ... messed up someplace! - */ - printk(KERN_ERR "macsonic: ERROR (INVALID MAC)\n"); - return -EIO; - } else return 0; -} - -int __init mac_onboard_sonic_probe(struct net_device* dev) -{ - /* Bwahahaha */ - static int once_is_more_than_enough; - int i; - int dma_bitmode; - - if (once_is_more_than_enough) - return -ENODEV; - once_is_more_than_enough = 1; - - if (!MACH_IS_MAC) - return -ENODEV; - - printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. "); - - if (macintosh_config->ether_type != MAC_ETHER_SONIC) - { - printk("none.\n"); - return -ENODEV; - } - - /* 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_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; - } - } - - printk("yes\n"); - - /* Danger! My arms are flailing wildly! You *must* set this - before using sonic_read() */ - - 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, dev->base_addr); - - /* Now do a song and dance routine in an attempt to determine - the bus width */ - - /* The PowerBook's SONIC is 16 bit always. */ - if (macintosh_config->ident == MAC_MODEL_PB520) { - reg_offset = 0; - dma_bitmode = 0; - } else if (macintosh_config->ident == MAC_MODEL_C610) { - reg_offset = 0; - dma_bitmode = 1; - } else { - /* Some of the comm-slot cards are 16 bit. But some - of them are not. The 32-bit cards use offset 2 and - pad with zeroes or sometimes ones (I think...) - Therefore, if we try offset 0 and get a silicon - revision of 0, we assume 16 bit. */ - int sr; - - /* Technically this is not necessary since we zeroed - it above */ - reg_offset = 0; - dma_bitmode = 0; - sr = sonic_read(dev, SONIC_SR); - if (sr == 0 || sr == 0xffff) { - reg_offset = 2; - /* 83932 is 0x0004, 83934 is 0x0100 or 0x0101 */ - sr = sonic_read(dev, SONIC_SR); - dma_bitmode = 1; - - } - printk(KERN_INFO - "%s: revision 0x%04x, using %d bit DMA and register offset %d\n", - dev->name, sr, dma_bitmode?32:16, reg_offset); - } - - - /* this carries my sincere apologies -- by the time I got to updating - the driver, support for "reg_offsets" appeares nowhere in the sonic - code, going back for over a year. Fortunately, my Mac does't seem - to use whatever this was. - - If you know how this is supposed to be implemented, either fix it, - or contact me (sammy@oh.verio.com) to explain what it is. --Sam */ - - if(reg_offset) { - printk("%s: register offset unsupported. please fix this if you know what it is.\n", dev->name); - return -ENODEV; - } - - /* Software reset, then initialize control registers. */ - sonic_write(dev, SONIC_CMD, SONIC_CR_RST); - sonic_write(dev, SONIC_DCR, SONIC_DCR_BMS | - SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_EXBUS | - (dma_bitmode ? SONIC_DCR_DW : 0)); - - /* This *must* be written back to in order to restore the - extended programmable output bits */ - sonic_write(dev, SONIC_DCR2, 0); - - /* Clear *and* disable interrupts to be on the safe side */ - sonic_write(dev, SONIC_ISR,0x7fff); - sonic_write(dev, SONIC_IMR,0); - - /* Now look for the MAC address. */ - if (mac_onboard_sonic_ethernet_addr(dev) != 0) - return -ENODEV; - - printk(KERN_INFO "MAC "); - for (i = 0; i < 6; i++) { - printk("%2.2x", dev->dev_addr[i]); - if (i < 5) - printk(":"); - } - - printk(" IRQ %d\n", dev->irq); - - /* Shared init code */ - return macsonic_init(dev); -} - -int __init 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); - /* For now we are going to assume that they're all bit-reversed */ - bit_reverse_addr(dev->dev_addr); - - return 0; -} - -int __init 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; - } - return -1; -} - -int __init mac_nubus_sonic_probe(struct net_device* dev) -{ - static int slots; - struct nubus_dev* ndev = NULL; - unsigned long base_addr, prom_addr; - u16 sonic_dcr; - int id; - int i; - int 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 = 1; - 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 = 1; - 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 = 0; - 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 = 0; - 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 = 0; - break; - default: - printk(KERN_ERR "macsonic: WTF, id is %d\n", id); - return -ENODEV; - } - - /* Danger! My arms are flailing wildly! You *must* set this - before using sonic_read() */ - dev->base_addr = base_addr; - 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, ndev->board->name, ndev->board->slot); - printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n", - dev->name, sonic_read(dev, SONIC_SR), dma_bitmode?32:16, reg_offset); - - if(reg_offset) { - printk("%s: register offset unsupported. please fix this if you know what it is.\n", dev->name); - return -ENODEV; - } - - /* Software reset, then initialize control registers. */ - sonic_write(dev, SONIC_CMD, SONIC_CR_RST); - sonic_write(dev, SONIC_DCR, sonic_dcr - | (dma_bitmode ? SONIC_DCR_DW : 0)); - - /* Clear *and* disable interrupts to be on the safe side */ - sonic_write(dev, SONIC_ISR,0x7fff); - sonic_write(dev, SONIC_IMR,0); - - /* Now look for the MAC address. */ - if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0) - return -ENODEV; - - printk(KERN_INFO "MAC "); - for (i = 0; i < 6; i++) { - printk("%2.2x", dev->dev_addr[i]); - if (i < 5) - printk(":"); - } - printk(" IRQ %d\n", dev->irq); - - /* Shared init code */ - return macsonic_init(dev); -} - -#ifdef MODULE -static struct net_device *dev_macsonic; - -MODULE_PARM(sonic_debug, "i"); -MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)"); - -int -init_module(void) -{ - dev_macsonic = macsonic_probe(-1); - if (IS_ERR(dev_macsonic)) { - printk(KERN_WARNING "macsonic.c: No card found\n"); - return PTR_ERR(dev_macsonic); - } - return 0; -} - -void -cleanup_module(void) -{ - unregister_netdev(dev_macsonic); - kfree(dev_macsonic->priv); - free_netdev(dev_macsonic); -} -#endif /* MODULE */ - - -#define vdma_alloc(foo, bar) ((u32)foo) -#define vdma_free(baz) -#define sonic_chiptomem(bat) (bat) -#define PHYSADDR(quux) (quux) -#define CPHYSADDR(quux) (quux) - -#define sonic_request_irq request_irq -#define sonic_free_irq free_irq - -#include "sonic.c" - -/* - * Local variables: - * compile-command: "m68k-linux-gcc -D__KERNEL__ -I../../include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -pipe -fno-strength-reduce -ffixed-a2 -DMODULE -DMODVERSIONS -include ../../include/linux/modversions.h -c -o macsonic.o macsonic.c" - * version-control: t - * kept-new-versions: 5 - * c-indent-level: 8 - * tab-width: 8 - * End: - * - */ |