diff options
Diffstat (limited to 'drivers/net/declance.c')
| -rw-r--r-- | drivers/net/declance.c | 164 |
1 files changed, 117 insertions, 47 deletions
diff --git a/drivers/net/declance.c b/drivers/net/declance.c index 4ae0fed7122..9f7e1db8ce6 100644 --- a/drivers/net/declance.c +++ b/drivers/net/declance.c @@ -5,7 +5,7 @@ * * adopted from sunlance.c by Richard van den Berg * - * Copyright (C) 2002, 2003, 2005 Maciej W. Rozycki + * Copyright (C) 2002, 2003, 2005, 2006 Maciej W. Rozycki * * additional sources: * - PMAD-AA TURBOchannel Ethernet Module Functional Specification, @@ -44,6 +44,8 @@ * v0.010: Fixes for the PMAD mapping of the LANCE buffer and for the * PMAX requirement to only use halfword accesses to the * buffer. macro + * + * v0.011: Converted the PMAD to the driver model. macro */ #include <linux/crc32.h> @@ -58,6 +60,7 @@ #include <linux/spinlock.h> #include <linux/stddef.h> #include <linux/string.h> +#include <linux/tc.h> #include <linux/types.h> #include <asm/addrspace.h> @@ -69,15 +72,16 @@ #include <asm/dec/kn01.h> #include <asm/dec/machtype.h> #include <asm/dec/system.h> -#include <asm/dec/tc.h> static char version[] __devinitdata = -"declance.c: v0.010 by Linux MIPS DECstation task force\n"; +"declance.c: v0.011 by Linux MIPS DECstation task force\n"; MODULE_AUTHOR("Linux MIPS DECstation task force"); MODULE_DESCRIPTION("DEC LANCE (DECstation onboard, PMAD-xx) driver"); MODULE_LICENSE("GPL"); +#define __unused __attribute__ ((unused)) + /* * card types */ @@ -246,7 +250,6 @@ struct lance_init_block { struct lance_private { struct net_device *next; int type; - int slot; int dma_irq; volatile struct lance_regs *ll; @@ -288,6 +291,7 @@ struct lance_regs { int dec_lance_debug = 2; +static struct tc_driver dec_lance_tc_driver; static struct net_device *root_lance_dev; static inline void writereg(volatile unsigned short *regptr, short value) @@ -1023,7 +1027,7 @@ static void lance_set_multicast_retry(unsigned long _opaque) lance_set_multicast(dev); } -static int __init dec_lance_init(const int type, const int slot) +static int __init dec_lance_probe(struct device *bdev, const int type) { static unsigned version_printed; static const char fmt[] = "declance%d"; @@ -1031,6 +1035,7 @@ static int __init dec_lance_init(const int type, const int slot) struct net_device *dev; struct lance_private *lp; volatile struct lance_regs *ll; + resource_size_t start = 0, len = 0; int i, ret; unsigned long esar_base; unsigned char *esar; @@ -1038,14 +1043,18 @@ static int __init dec_lance_init(const int type, const int slot) if (dec_lance_debug && version_printed++ == 0) printk(version); - i = 0; - dev = root_lance_dev; - while (dev) { - i++; - lp = (struct lance_private *)dev->priv; - dev = lp->next; + if (bdev) + snprintf(name, sizeof(name), "%s", bdev->bus_id); + else { + i = 0; + dev = root_lance_dev; + while (dev) { + i++; + lp = (struct lance_private *)dev->priv; + dev = lp->next; + } + snprintf(name, sizeof(name), fmt, i); } - snprintf(name, sizeof(name), fmt, i); dev = alloc_etherdev(sizeof(struct lance_private)); if (!dev) { @@ -1063,7 +1072,6 @@ static int __init dec_lance_init(const int type, const int slot) spin_lock_init(&lp->lock); lp->type = type; - lp->slot = slot; switch (type) { case ASIC_LANCE: dev->base_addr = CKSEG1ADDR(dec_kn_slot_base + IOASIC_LANCE); @@ -1110,12 +1118,22 @@ static int __init dec_lance_init(const int type, const int slot) break; #ifdef CONFIG_TC case PMAD_LANCE: - claim_tc_card(slot); + dev_set_drvdata(bdev, dev); + + start = to_tc_dev(bdev)->resource.start; + len = to_tc_dev(bdev)->resource.end - start + 1; + if (!request_mem_region(start, len, bdev->bus_id)) { + printk(KERN_ERR + "%s: Unable to reserve MMIO resource\n", + bdev->bus_id); + ret = -EBUSY; + goto err_out_dev; + } - dev->mem_start = CKSEG1ADDR(get_tc_base_addr(slot)); + dev->mem_start = CKSEG1ADDR(start); dev->mem_end = dev->mem_start + 0x100000; dev->base_addr = dev->mem_start + 0x100000; - dev->irq = get_tc_irq_nr(slot); + dev->irq = to_tc_dev(bdev)->interrupt; esar_base = dev->mem_start + 0x1c0002; lp->dma_irq = -1; @@ -1174,7 +1192,7 @@ static int __init dec_lance_init(const int type, const int slot) printk(KERN_ERR "%s: declance_init called with unknown type\n", name); ret = -ENODEV; - goto err_out_free_dev; + goto err_out_dev; } ll = (struct lance_regs *) dev->base_addr; @@ -1188,7 +1206,7 @@ static int __init dec_lance_init(const int type, const int slot) "%s: Ethernet station address prom not found!\n", name); ret = -ENODEV; - goto err_out_free_dev; + goto err_out_resource; } /* Check the prom contents */ for (i = 0; i < 8; i++) { @@ -1198,7 +1216,7 @@ static int __init dec_lance_init(const int type, const int slot) printk(KERN_ERR "%s: Something is wrong with the " "ethernet station address prom!\n", name); ret = -ENODEV; - goto err_out_free_dev; + goto err_out_resource; } } @@ -1255,48 +1273,51 @@ static int __init dec_lance_init(const int type, const int slot) if (ret) { printk(KERN_ERR "%s: Unable to register netdev, aborting.\n", name); - goto err_out_free_dev; + goto err_out_resource; } - lp->next = root_lance_dev; - root_lance_dev = dev; + if (!bdev) { + lp->next = root_lance_dev; + root_lance_dev = dev; + } printk("%s: registered as %s.\n", name, dev->name); return 0; -err_out_free_dev: +err_out_resource: + if (bdev) + release_mem_region(start, len); + +err_out_dev: free_netdev(dev); err_out: return ret; } +static void __exit dec_lance_remove(struct device *bdev) +{ + struct net_device *dev = dev_get_drvdata(bdev); + resource_size_t start, len; + + unregister_netdev(dev); + start = to_tc_dev(bdev)->resource.start; + len = to_tc_dev(bdev)->resource.end - start + 1; + release_mem_region(start, len); + free_netdev(dev); +} /* Find all the lance cards on the system and initialize them */ -static int __init dec_lance_probe(void) +static int __init dec_lance_platform_probe(void) { int count = 0; - /* Scan slots for PMAD-AA cards first. */ -#ifdef CONFIG_TC - if (TURBOCHANNEL) { - int slot; - - while ((slot = search_tc_card("PMAD-AA")) >= 0) { - if (dec_lance_init(PMAD_LANCE, slot) < 0) - break; - count++; - } - } -#endif - - /* Then handle onboard devices. */ if (dec_interrupt[DEC_IRQ_LANCE] >= 0) { if (dec_interrupt[DEC_IRQ_LANCE_MERR] >= 0) { - if (dec_lance_init(ASIC_LANCE, -1) >= 0) + if (dec_lance_probe(NULL, ASIC_LANCE) >= 0) count++; } else if (!TURBOCHANNEL) { - if (dec_lance_init(PMAX_LANCE, -1) >= 0) + if (dec_lance_probe(NULL, PMAX_LANCE) >= 0) count++; } } @@ -1304,21 +1325,70 @@ static int __init dec_lance_probe(void) return (count > 0) ? 0 : -ENODEV; } -static void __exit dec_lance_cleanup(void) +static void __exit dec_lance_platform_remove(void) { while (root_lance_dev) { struct net_device *dev = root_lance_dev; struct lance_private *lp = netdev_priv(dev); unregister_netdev(dev); -#ifdef CONFIG_TC - if (lp->slot >= 0) - release_tc_card(lp->slot); -#endif root_lance_dev = lp->next; free_netdev(dev); } } -module_init(dec_lance_probe); -module_exit(dec_lance_cleanup); +#ifdef CONFIG_TC +static int __init dec_lance_tc_probe(struct device *dev); +static int __exit dec_lance_tc_remove(struct device *dev); + +static const struct tc_device_id dec_lance_tc_table[] = { + { "DEC ", "PMAD-AA " }, + { } +}; +MODULE_DEVICE_TABLE(tc, dec_lance_tc_table); + +static struct tc_driver dec_lance_tc_driver = { + .id_table = dec_lance_tc_table, + .driver = { + .name = "declance", + .bus = &tc_bus_type, + .probe = dec_lance_tc_probe, + .remove = __exit_p(dec_lance_tc_remove), + }, +}; + +static int __init dec_lance_tc_probe(struct device *dev) +{ + int status = dec_lance_probe(dev, PMAD_LANCE); + if (!status) + get_device(dev); + return status; +} + +static int __exit dec_lance_tc_remove(struct device *dev) +{ + put_device(dev); + dec_lance_remove(dev); + return 0; +} +#endif + +static int __init dec_lance_init(void) +{ + int status; + + status = tc_register_driver(&dec_lance_tc_driver); + if (!status) + dec_lance_platform_probe(); + return status; +} + +static void __exit dec_lance_exit(void) +{ + dec_lance_platform_remove(); + tc_unregister_driver(&dec_lance_tc_driver); +} + + +module_init(dec_lance_init); +module_exit(dec_lance_exit); |