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Release 4.11 drivers/net/ethernet/i825xx/sni_82596.c

/*
 * sni_82596.c -- driver for intel 82596 ethernet controller, as
 *                used in older SNI RM machines
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/irq.h>


#define SNI_82596_DRIVER_VERSION "SNI RM 82596 driver - Revision: 0.01"


static const char sni_82596_string[] = "snirm_82596";


#define DMA_ALLOC                      dma_alloc_coherent

#define DMA_FREE                       dma_free_coherent

#define DMA_WBACK(priv, addr, len)     do { } while (0)

#define DMA_INV(priv, addr, len)       do { } while (0)

#define DMA_WBACK_INV(priv, addr, len) do { } while (0)


#define SYSBUS      0x00004400

/* big endian CPU, 82596 little endian */

#define SWAP32(x)   cpu_to_le32((u32)(x))

#define SWAP16(x)   cpu_to_le16((u16)(x))


#define OPT_MPU_16BIT    0x01

#include "lib82596.c"

MODULE_AUTHOR("Thomas Bogendoerfer");
MODULE_DESCRIPTION("i82596 driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:snirm_82596");
module_param(i596_debug, int, 0);
MODULE_PARM_DESC(i596_debug, "82596 debug mask");


static inline void ca(struct net_device *dev) { struct i596_private *lp = netdev_priv(dev); writel(0, lp->ca); }

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Thomas Bogendoerfer31100.00%1100.00%
Total31100.00%1100.00%


static void mpu_port(struct net_device *dev, int c, dma_addr_t x) { struct i596_private *lp = netdev_priv(dev); u32 v = (u32) (c) | (u32) (x); if (lp->options & OPT_MPU_16BIT) { writew(v & 0xffff, lp->mpu_port); wmb(); /* order writes to MPU port */ udelay(1); writew(v >> 16, lp->mpu_port); } else { writel(v, lp->mpu_port); wmb(); /* order writes to MPU port */ udelay(1); writel(v, lp->mpu_port); } }

Contributors

PersonTokensPropCommitsCommitProp
Thomas Bogendoerfer115100.00%1100.00%
Total115100.00%1100.00%


static int sni_82596_probe(struct platform_device *dev) { struct net_device *netdevice; struct i596_private *lp; struct resource *res, *ca, *idprom, *options; int retval = -ENOMEM; void __iomem *mpu_addr; void __iomem *ca_addr; u8 __iomem *eth_addr; res = platform_get_resource(dev, IORESOURCE_MEM, 0); ca = platform_get_resource(dev, IORESOURCE_MEM, 1); options = platform_get_resource(dev, 0, 0); idprom = platform_get_resource(dev, IORESOURCE_MEM, 2); if (!res || !ca || !options || !idprom) return -ENODEV; mpu_addr = ioremap_nocache(res->start, 4); if (!mpu_addr) return -ENOMEM; ca_addr = ioremap_nocache(ca->start, 4); if (!ca_addr) goto probe_failed_free_mpu; printk(KERN_INFO "Found i82596 at 0x%x\n", res->start); netdevice = alloc_etherdev(sizeof(struct i596_private)); if (!netdevice) goto probe_failed_free_ca; SET_NETDEV_DEV(netdevice, &dev->dev); platform_set_drvdata (dev, netdevice); netdevice->base_addr = res->start; netdevice->irq = platform_get_irq(dev, 0); eth_addr = ioremap_nocache(idprom->start, 0x10); if (!eth_addr) goto probe_failed; /* someone seems to like messed up stuff */ netdevice->dev_addr[0] = readb(eth_addr + 0x0b); netdevice->dev_addr[1] = readb(eth_addr + 0x0a); netdevice->dev_addr[2] = readb(eth_addr + 0x09); netdevice->dev_addr[3] = readb(eth_addr + 0x08); netdevice->dev_addr[4] = readb(eth_addr + 0x07); netdevice->dev_addr[5] = readb(eth_addr + 0x06); iounmap(eth_addr); if (!netdevice->irq) { printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n", __FILE__, netdevice->base_addr); goto probe_failed; } lp = netdev_priv(netdevice); lp->options = options->flags & IORESOURCE_BITS; lp->ca = ca_addr; lp->mpu_port = mpu_addr; retval = i82596_probe(netdevice); if (retval == 0) return 0; probe_failed: free_netdev(netdevice); probe_failed_free_ca: iounmap(ca_addr); probe_failed_free_mpu: iounmap(mpu_addr); return retval; }

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Thomas Bogendoerfer424100.00%1100.00%
Total424100.00%1100.00%


static int sni_82596_driver_remove(struct platform_device *pdev) { struct net_device *dev = platform_get_drvdata(pdev); struct i596_private *lp = netdev_priv(dev); unregister_netdev(dev); DMA_FREE(dev->dev.parent, sizeof(struct i596_private), lp->dma, lp->dma_addr); iounmap(lp->ca); iounmap(lp->mpu_port); free_netdev (dev); return 0; }

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Thomas Bogendoerfer81100.00%1100.00%
Total81100.00%1100.00%

static struct platform_driver sni_82596_driver = { .probe = sni_82596_probe, .remove = sni_82596_driver_remove, .driver = { .name = sni_82596_string, }, };
static int sni_82596_init(void) { printk(KERN_INFO SNI_82596_DRIVER_VERSION "\n"); return platform_driver_register(&sni_82596_driver); }

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Thomas Bogendoerfer21100.00%1100.00%
Total21100.00%1100.00%


static void __exit sni_82596_exit(void) { platform_driver_unregister(&sni_82596_driver); }

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Thomas Bogendoerfer15100.00%1100.00%
Total15100.00%1100.00%

module_init(sni_82596_init); module_exit(sni_82596_exit);

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Thomas Bogendoerfer88099.44%150.00%
Kay Sievers50.56%150.00%
Total885100.00%2100.00%
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