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Release 4.11 drivers/net/ethernet/amd/mvme147.c

/* mvme147.c  : the  Linux/mvme147/lance ethernet driver
 *
 * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
 * Based on the Sun Lance driver and the NetBSD HP Lance driver
 * Uses the generic 7990.c LANCE code.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/gfp.h>
/* Used for the temporal inet entries and routing */
#include <linux/socket.h>
#include <linux/route.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>

#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/mvme147hw.h>

/* We have 32K of RAM for the init block and buffers. This places
 * an upper limit on the number of buffers we can use. NetBSD uses 8 Rx
 * buffers and 2 Tx buffers, it takes (8 + 2) * 1544 bytes.
 */

#define LANCE_LOG_TX_BUFFERS 1

#define LANCE_LOG_RX_BUFFERS 3

#include "7990.h"                                 /* use generic LANCE code */

/* Our private data structure */

struct m147lance_private {
	
struct lance_private lance;
	
unsigned long ram;
};

/* function prototypes... This is easy because all the grot is in the
 * generic LANCE support. All we have to support is probing for boards,
 * plus board-specific init, open and close actions.
 * Oh, and we need to tell the generic code how to read and write LANCE registers...
 */
static int m147lance_open(struct net_device *dev);
static int m147lance_close(struct net_device *dev);
static void m147lance_writerap(struct lance_private *lp, unsigned short value);
static void m147lance_writerdp(struct lance_private *lp, unsigned short value);
static unsigned short m147lance_readrdp(struct lance_private *lp);


typedef void (*writerap_t)(void *, unsigned short);

typedef void (*writerdp_t)(void *, unsigned short);

typedef unsigned short (*readrdp_t)(void *);


static const struct net_device_ops lance_netdev_ops = {
	.ndo_open		= m147lance_open,
	.ndo_stop		= m147lance_close,
	.ndo_start_xmit		= lance_start_xmit,
	.ndo_set_rx_mode	= lance_set_multicast,
	.ndo_tx_timeout		= lance_tx_timeout,
	.ndo_validate_addr	= eth_validate_addr,
	.ndo_set_mac_address	= eth_mac_addr,
};

/* Initialise the one and only on-board 7990 */

struct net_device * __init mvme147lance_probe(int unit) { struct net_device *dev; static int called; static const char name[] = "MVME147 LANCE"; struct m147lance_private *lp; u_long *addr; u_long address; int err; if (!MACH_IS_MVME147 || called) return ERR_PTR(-ENODEV); called++; dev = alloc_etherdev(sizeof(struct m147lance_private)); if (!dev) return ERR_PTR(-ENOMEM); if (unit >= 0) sprintf(dev->name, "eth%d", unit); /* Fill the dev fields */ dev->base_addr = (unsigned long)MVME147_LANCE_BASE; dev->netdev_ops = &lance_netdev_ops; dev->dma = 0; addr = (u_long *)ETHERNET_ADDRESS; address = *addr; dev->dev_addr[0] = 0x08; dev->dev_addr[1] = 0x00; dev->dev_addr[2] = 0x3e; address = address >> 8; dev->dev_addr[5] = address&0xff; address = address >> 8; dev->dev_addr[4] = address&0xff; address = address >> 8; dev->dev_addr[3] = address&0xff; printk("%s: MVME147 at 0x%08lx, irq %d, Hardware Address %pM\n", dev->name, dev->base_addr, MVME147_LANCE_IRQ, dev->dev_addr); lp = netdev_priv(dev); lp->ram = __get_dma_pages(GFP_ATOMIC, 3); /* 32K */ if (!lp->ram) { printk("%s: No memory for LANCE buffers\n", dev->name); free_netdev(dev); return ERR_PTR(-ENOMEM); } lp->lance.name = name; lp->lance.base = dev->base_addr; lp->lance.init_block = (struct lance_init_block *)(lp->ram); /* CPU addr */ lp->lance.lance_init_block = (struct lance_init_block *)(lp->ram); /* LANCE addr of same RAM */ lp->lance.busmaster_regval = LE_C3_BSWP; /* we're bigendian */ lp->lance.irq = MVME147_LANCE_IRQ; lp->lance.writerap = (writerap_t)m147lance_writerap; lp->lance.writerdp = (writerdp_t)m147lance_writerdp; lp->lance.readrdp = (readrdp_t)m147lance_readrdp; lp->lance.lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS; lp->lance.lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS; lp->lance.rx_ring_mod_mask = RX_RING_MOD_MASK; lp->lance.tx_ring_mod_mask = TX_RING_MOD_MASK; err = register_netdev(dev); if (err) { free_pages(lp->ram, 3); free_netdev(dev); return ERR_PTR(err); } return dev; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)38183.74%433.33%
Stephen Hemminger6213.63%18.33%
Geert Uytterhoeven51.10%325.00%
Wang Chen30.66%18.33%
Alexander Beregalov20.44%18.33%
Amos Kong10.22%18.33%
Joe Perches10.22%18.33%
Total455100.00%12100.00%


static void m147lance_writerap(struct lance_private *lp, unsigned short value) { out_be16(lp->base + LANCE_RAP, value); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)1869.23%150.00%
Geert Uytterhoeven830.77%150.00%
Total26100.00%2100.00%


static void m147lance_writerdp(struct lance_private *lp, unsigned short value) { out_be16(lp->base + LANCE_RDP, value); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)1869.23%150.00%
Geert Uytterhoeven830.77%150.00%
Total26100.00%2100.00%


static unsigned short m147lance_readrdp(struct lance_private *lp) { return in_be16(lp->base + LANCE_RDP); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)1568.18%150.00%
Geert Uytterhoeven731.82%150.00%
Total22100.00%2100.00%


static int m147lance_open(struct net_device *dev) { int status; status = lance_open(dev); /* call generic lance open code */ if (status) return status; /* enable interrupts at board level. */ m147_pcc->lan_cntrl = 0; /* clear the interrupts (if any) */ m147_pcc->lan_cntrl = 0x08 | 0x04; /* Enable irq 4 */ return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)49100.00%2100.00%
Total49100.00%2100.00%


static int m147lance_close(struct net_device *dev) { /* disable interrupts at boardlevel */ m147_pcc->lan_cntrl = 0x0; /* disable interrupts */ lance_close(dev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)27100.00%2100.00%
Total27100.00%2100.00%

#ifdef MODULE MODULE_LICENSE("GPL"); static struct net_device *dev_mvme147_lance;
int __init init_module(void) { dev_mvme147_lance = mvme147lance_probe(-1); return PTR_ERR_OR_ZERO(dev_mvme147_lance); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)1359.09%125.00%
Stephen Hemminger731.82%125.00%
Al Viro14.55%125.00%
Rusty Russell14.55%125.00%
Total22100.00%4100.00%


void __exit cleanup_module(void) { struct m147lance_private *lp = netdev_priv(dev_mvme147_lance); unregister_netdev(dev_mvme147_lance); free_pages(lp->ram, 3); free_netdev(dev_mvme147_lance); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)2772.97%120.00%
Stephen Hemminger616.22%240.00%
Wang Chen38.11%120.00%
Al Viro12.70%120.00%
Total37100.00%5100.00%

#endif /* MODULE */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)72179.41%525.00%
Stephen Hemminger818.92%210.00%
Alexander Beregalov444.85%15.00%
Geert Uytterhoeven333.63%315.00%
Arnaldo Carvalho de Melo80.88%15.00%
Wang Chen60.66%15.00%
Linus Torvalds50.55%15.00%
Tejun Heo30.33%15.00%
Amos Kong20.22%15.00%
Al Viro20.22%15.00%
Rusty Russell10.11%15.00%
Joe Perches10.11%15.00%
Jiri Pirko10.11%15.00%
Total908100.00%20100.00%
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