cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/ethernet/smsc/smc91c92_cs.c

Directory: drivers/net/ethernet/smsc
/*======================================================================

    A PCMCIA ethernet driver for SMC91c92-based cards.

    This driver supports Megahertz PCMCIA ethernet cards; and
    Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem
    multifunction cards.

    Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net

    smc91c92_cs.c 1.122 2002/10/25 06:26:39

    This driver contains code written by Donald Becker
    (becker@scyld.com), Rowan Hughes (x-csrdh@jcu.edu.au),
    David Hinds (dahinds@users.sourceforge.net), and Erik Stahlman
    (erik@vt.edu).  Donald wrote the SMC 91c92 code using parts of
    Erik's SMC 91c94 driver.  Rowan wrote a similar driver, and I've
    incorporated some parts of his driver here.  I (Dave) wrote most
    of the PCMCIA glue code, and the Ositech support code.  Kelly
    Stephens (kstephen@holli.com) added support for the Motorola
    Mariner, with help from Allen Brost.

    This software may be used and distributed according to the terms of
    the GNU General Public License, incorporated herein by reference.

======================================================================*/


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/crc32.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <linux/ioport.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/jiffies.h>
#include <linux/firmware.h>

#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/ds.h>
#include <pcmcia/ss.h>

#include <asm/io.h>
#include <linux/uaccess.h>

/*====================================================================*/


static const char *if_names[] = { "auto", "10baseT", "10base2"};

/* Firmware name */

#define FIRMWARE_NAME		"ositech/Xilinx7OD.bin"

/* Module parameters */

MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
MODULE_LICENSE("GPL");

MODULE_FIRMWARE(FIRMWARE_NAME);


#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)

/*
  Transceiver/media type.
   0 = auto
   1 = 10baseT (and autoselect if #define AUTOSELECT),
   2 = AUI/10base2,
*/
INT_MODULE_PARM(if_port, 0);



#define DRV_NAME	"smc91c92_cs"

#define DRV_VERSION	"1.123"

/*====================================================================*/

/* Operational parameter that usually are not changed. */

/* Time in jiffies before concluding Tx hung */

#define TX_TIMEOUT		((400*HZ)/1000)

/* Maximum events (Rx packets, etc.) to handle at each interrupt. */

#define INTR_WORK		4

/* Times to check the check the chip before concluding that it doesn't
   currently have room for another Tx packet. */

#define MEMORY_WAIT_TIME       	8


struct smc_private {
	
struct pcmcia_device	*p_dev;
    
spinlock_t			lock;
    
u_short			manfid;
    
u_short			cardid;

    
struct sk_buff		*saved_skb;
    
int				packets_waiting;
    
void			__iomem *base;
    
u_short			cfg;
    
struct timer_list		media;
    

int				watchdog, tx_err;
    
u_short			media_status;
    
u_short			fast_poll;
    
u_short			link_status;
    
struct mii_if_info		mii_if;
    
int				duplex;
    
int				rx_ovrn;
    
unsigned long		last_rx;
};

/* Special definitions for Megahertz multifunction cards */

#define MEGAHERTZ_ISR		0x0380

/* Special function registers for Motorola Mariner */

#define MOT_LAN			0x0000

#define MOT_UART		0x0020

#define MOT_EEPROM		0x20


#define MOT_NORMAL \
(COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)

/* Special function registers for Ositech cards */

#define OSITECH_AUI_CTL		0x0c

#define OSITECH_PWRDOWN		0x0d

#define OSITECH_RESET		0x0e

#define OSITECH_ISR		0x0f

#define OSITECH_AUI_PWR		0x0c

#define OSITECH_RESET_ISR	0x0e


#define OSI_AUI_PWR		0x40

#define OSI_LAN_PWRDOWN		0x02

#define OSI_MODEM_PWRDOWN	0x01

#define OSI_LAN_RESET		0x02

#define OSI_MODEM_RESET		0x01

/* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */

#define	BANK_SELECT		14		
/* Window select register. */

#define SMC_SELECT_BANK(x)  { outw(x, ioaddr + BANK_SELECT); }

/* Bank 0 registers. */

#define	TCR 		0	
/* transmit control register */

#define	 TCR_CLEAR	0	
/* do NOTHING */

#define  TCR_ENABLE	0x0001	
/* if this is 1, we can transmit */

#define	 TCR_PAD_EN	0x0080	
/* pads short packets to 64 bytes */

#define  TCR_MONCSN	0x0400  
/* Monitor Carrier. */

#define  TCR_FDUPLX	0x0800  
/* Full duplex mode. */

#define	 TCR_NORMAL TCR_ENABLE | TCR_PAD_EN


#define EPH		2	
/* Ethernet Protocol Handler report. */

#define  EPH_TX_SUC	0x0001

#define  EPH_SNGLCOL	0x0002

#define  EPH_MULCOL	0x0004

#define  EPH_LTX_MULT	0x0008

#define  EPH_16COL	0x0010

#define  EPH_SQET	0x0020

#define  EPH_LTX_BRD	0x0040

#define  EPH_TX_DEFR	0x0080

#define  EPH_LAT_COL	0x0200

#define  EPH_LOST_CAR	0x0400

#define  EPH_EXC_DEF	0x0800

#define  EPH_CTR_ROL	0x1000

#define  EPH_RX_OVRN	0x2000

#define  EPH_LINK_OK	0x4000

#define  EPH_TX_UNRN	0x8000

#define MEMINFO		8	
/* Memory Information Register */

#define MEMCFG		10	
/* Memory Configuration Register */

/* Bank 1 registers. */

#define CONFIG			0

#define  CFG_MII_SELECT		0x8000	
/* 91C100 only */

#define  CFG_NO_WAIT		0x1000

#define  CFG_FULL_STEP		0x0400

#define  CFG_SET_SQLCH		0x0200

#define  CFG_AUI_SELECT	 	0x0100

#define  CFG_16BIT		0x0080

#define  CFG_DIS_LINK		0x0040

#define  CFG_STATIC		0x0030

#define  CFG_IRQ_SEL_1		0x0004

#define  CFG_IRQ_SEL_0		0x0002

#define BASE_ADDR		2

#define	ADDR0			4

#define	GENERAL			10

#define	CONTROL			12

#define  CTL_STORE		0x0001

#define  CTL_RELOAD		0x0002

#define  CTL_EE_SELECT		0x0004

#define  CTL_TE_ENABLE		0x0020

#define  CTL_CR_ENABLE		0x0040

#define  CTL_LE_ENABLE		0x0080

#define  CTL_AUTO_RELEASE	0x0800

#define	 CTL_POWERDOWN		0x2000

/* Bank 2 registers. */

#define MMU_CMD		0

#define	 MC_ALLOC	0x20  	
/* or with number of 256 byte packets */

#define	 MC_RESET	0x40

#define  MC_RELEASE  	0x80  	
/* remove and release the current rx packet */

#define  MC_FREEPKT  	0xA0  	
/* Release packet in PNR register */

#define  MC_ENQUEUE	0xC0 	
/* Enqueue the packet for transmit */

#define	PNR_ARR		2

#define FIFO_PORTS	4

#define  FP_RXEMPTY	0x8000

#define	POINTER		6

#define  PTR_AUTO_INC	0x0040

#define  PTR_READ	0x2000

#define	 PTR_AUTOINC 	0x4000

#define	 PTR_RCV	0x8000

#define	DATA_1		8

#define	INTERRUPT	12

#define  IM_RCV_INT		0x1

#define	 IM_TX_INT		0x2

#define	 IM_TX_EMPTY_INT	0x4

#define	 IM_ALLOC_INT		0x8

#define	 IM_RX_OVRN_INT		0x10

#define	 IM_EPH_INT		0x20


#define	RCR		4



enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
	     

RxEnable = 0x0100, RxStripCRC = 0x0200};

#define  RCR_SOFTRESET	0x8000 	
/* resets the chip */

#define	 RCR_STRIP_CRC	0x200	
/* strips CRC */

#define  RCR_ENABLE	0x100	
/* IFF this is set, we can receive packets */

#define  RCR_ALMUL	0x4 	
/* receive all multicast packets */

#define	 RCR_PROMISC	0x2	
/* enable promiscuous mode */

/* the normal settings for the RCR register : */

#define	 RCR_NORMAL	(RCR_STRIP_CRC | RCR_ENABLE)

#define  RCR_CLEAR	0x0		
/* set it to a base state */

#define	COUNTER		6

/* BANK 3 -- not the same values as in smc9194! */

#define	MULTICAST0	0

#define	MULTICAST2	2

#define	MULTICAST4	4

#define	MULTICAST6	6

#define MGMT    	8

#define REVISION	0x0a

/* Transmit status bits. */

#define TS_SUCCESS 0x0001

#define TS_16COL   0x0010

#define TS_LATCOL  0x0200

#define TS_LOSTCAR 0x0400

/* Receive status bits. */

#define RS_ALGNERR	0x8000

#define RS_BADCRC	0x2000

#define RS_ODDFRAME	0x1000

#define RS_TOOLONG	0x0800

#define RS_TOOSHORT	0x0400

#define RS_MULTICAST	0x0001

#define RS_ERRORS	(RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)


#define set_bits(v, p) outw(inw(p)|(v), (p))

#define mask_bits(v, p) outw(inw(p)&(v), (p))

/*====================================================================*/

static void smc91c92_detach(struct pcmcia_device *p_dev);
static int smc91c92_config(struct pcmcia_device *link);
static void smc91c92_release(struct pcmcia_device *link);

static int smc_open(struct net_device *dev);
static int smc_close(struct net_device *dev);
static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static void smc_tx_timeout(struct net_device *dev);
static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
					struct net_device *dev);
static irqreturn_t smc_interrupt(int irq, void *dev_id);
static void smc_rx(struct net_device *dev);
static void set_rx_mode(struct net_device *dev);
static int s9k_config(struct net_device *dev, struct ifmap *map);
static void smc_set_xcvr(struct net_device *dev, int if_port);
static void smc_reset(struct net_device *dev);
static void media_check(u_long arg);
static void mdio_sync(unsigned int addr);
static int mdio_read(struct net_device *dev, int phy_id, int loc);
static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
static int smc_link_ok(struct net_device *dev);

static const struct ethtool_ops ethtool_ops;


static const struct net_device_ops smc_netdev_ops = {
	.ndo_open		= smc_open,
	.ndo_stop		= smc_close,
	.ndo_start_xmit		= smc_start_xmit,
	.ndo_tx_timeout 	= smc_tx_timeout,
	.ndo_set_config 	= s9k_config,
	.ndo_set_rx_mode	= set_rx_mode,
	.ndo_do_ioctl		= smc_ioctl,
	.ndo_set_mac_address 	= eth_mac_addr,
	.ndo_validate_addr	= eth_validate_addr,
};




static int smc91c92_probe(struct pcmcia_device *link)
{
    struct smc_private *smc;
    struct net_device *dev;

    dev_dbg(&link->dev, "smc91c92_attach()\n");

    /* Create new ethernet device */
    dev = alloc_etherdev(sizeof(struct smc_private));
    if (!dev)
	return -ENOMEM;
    smc = netdev_priv(dev);
    smc->p_dev = link;
    link->priv = dev;

    spin_lock_init(&smc->lock);

    /* The SMC91c92-specific entries in the device structure. */
    dev->netdev_ops = &smc_netdev_ops;
    dev->ethtool_ops = &ethtool_ops;
    dev->watchdog_timeo = TX_TIMEOUT;

    smc->mii_if.dev = dev;
    smc->mii_if.mdio_read = mdio_read;
    smc->mii_if.mdio_write = mdio_write;
    smc->mii_if.phy_id_mask = 0x1f;
    smc->mii_if.reg_num_mask = 0x1f;

    return smc91c92_config(link);
} 
Contributors
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Linus Torvalds (pre-git)5739.04%318.75%


Zwane Mwaikambo4631.51%16.25%


Dominik Brodowski2416.44%637.50%


Daniel Ritz53.42%16.25%


Al Viro42.74%16.25%


Wilfried Klaebe32.05%16.25%


Randy Dunlap32.05%16.25%


David Hinds21.37%16.25%


Stephen Hemminger21.37%16.25%


Total146100.00%16100.00%



/* smc91c92_attach */




static void smc91c92_detach(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;

    dev_dbg(&link->dev, "smc91c92_detach\n");

    unregister_netdev(dev);

    smc91c92_release(link);

    free_netdev(dev);
} 
Contributors
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Linus Torvalds (pre-git)2351.11%225.00%


Dominik Brodowski920.00%337.50%


Stephen Hemminger613.33%112.50%


Russell King511.11%112.50%


Daniel Ritz24.44%112.50%


Total45100.00%8100.00%



/* smc91c92_detach */

/*====================================================================*/




static int cvt_ascii_address(struct net_device *dev, char *s)
{
    int i, j, da, c;

    if (strlen(s) != 12)
	return -1;
    for (i = 0; i < 6; i++) {
	da = 0;
	for (j = 0; j < 2; j++) {
	    c = *s++;
	    da <<= 4;
	    da += ((c >= '0') && (c <= '9')) ?
		(c - '0') : ((c & 0x0f) + 9);
	}
	dev->dev_addr[i] = da;
    }
    return 0;
}


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Total125100.00%1100.00%



/*====================================================================

    Configuration stuff for Megahertz cards

    mhz_3288_power() is used to power up a 3288's ethernet chip.
    mhz_mfc_config() handles socket setup for multifunction (1144
    and 3288) cards.  mhz_setup() gets a card's hardware ethernet
    address.

======================================================================*/




static int mhz_3288_power(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    struct smc_private *smc = netdev_priv(dev);
    u_char tmp;

    /* Read the ISR twice... */
    readb(smc->base+MEGAHERTZ_ISR);
    udelay(5);
    readb(smc->base+MEGAHERTZ_ISR);

    /* Pause 200ms... */
    mdelay(200);

    /* Now read and write the COR... */
    tmp = readb(smc->base + link->config_base + CISREG_COR);
    udelay(5);
    writeb(tmp, smc->base + link->config_base + CISREG_COR);

    return 0;
}


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Linus Torvalds (pre-git)8583.33%233.33%


Daniel Ritz109.80%116.67%


Dominik Brodowski43.92%233.33%


Randy Dunlap32.94%116.67%


Total102100.00%6100.00%






static int mhz_mfc_config_check(struct pcmcia_device *p_dev, void *priv_data)
{
	int k;
	p_dev->io_lines = 16;
	p_dev->resource[1]->start = p_dev->resource[0]->start;
	p_dev->resource[1]->end = 8;
	p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
	p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
	p_dev->resource[0]->end = 16;
	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
	for (k = 0; k < 0x400; k += 0x10) {
		if (k & 0x80)
			continue;
		p_dev->resource[0]->start = k ^ 0x300;
		if (!pcmcia_request_io(p_dev))
			return 0;
	}
	return -ENODEV;
}


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Total161100.00%3100.00%






static int mhz_mfc_config(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    struct smc_private *smc = netdev_priv(dev);
    unsigned int offset;
    int i;

    link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ |
	    CONF_AUTO_SET_IO;

    /* The Megahertz combo cards have modem-like CIS entries, so
       we have to explicitly try a bunch of port combinations. */
    if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
	    return -ENODEV;

    dev->base_addr = link->resource[0]->start;

    /* Allocate a memory window, for accessing the ISR */
    link->resource[2]->flags = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
    link->resource[2]->start = link->resource[2]->end = 0;
    i = pcmcia_request_window(link, link->resource[2], 0);
    if (i != 0)
	    return -ENODEV;

    smc->base = ioremap(link->resource[2]->start,
		    resource_size(link->resource[2]));
    offset = (smc->manfid == MANFID_MOTOROLA) ? link->config_base : 0;
    i = pcmcia_map_mem_page(link, link->resource[2], offset);
    if ((i == 0) &&
	(smc->manfid == MANFID_MEGAHERTZ) &&
	(smc->cardid == PRODID_MEGAHERTZ_EM3288))
	    mhz_3288_power(link);

    return 0;
}


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Dominik Brodowski8939.04%1062.50%


Daniel Ritz41.75%16.25%


Andrew Morton41.75%16.25%


Randy Dunlap31.32%16.25%


Magnus Damm20.88%16.25%


Total228100.00%16100.00%






static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
			      tuple_t *tuple,
			      void *priv)
{
	struct net_device *dev = priv;
	cisparse_t parse;
	u8 *buf;

	if (pcmcia_parse_tuple(tuple, &parse))
		return -EINVAL;

	buf = parse.version_1.str + parse.version_1.ofs[3];

	if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
		return 0;

	return -EINVAL;
}
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Dominik Brodowski5154.26%337.50%


Ken Kawasaki2425.53%112.50%


Linus Torvalds (pre-git)1515.96%225.00%


Yum Rayan33.19%112.50%


Daniel Ritz11.06%112.50%


Total94100.00%8100.00%



;




static int mhz_setup(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    size_t len;
    u8 *buf;
    int rc;

    /* Read the station address from the CIS.  It is stored as the last
       (fourth) string in the Version 1 Version/ID tuple. */
    if ((link->prod_id[3]) &&
	(cvt_ascii_address(dev, link->prod_id[3]) == 0))
	    return 0;

    /* Workarounds for broken cards start here. */
    /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
    if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
	    return 0;

    /* Another possibility: for the EM3288, in a special tuple */
    rc = -1;
    len = pcmcia_get_tuple(link, 0x81, &buf);
    if (buf && len >= 13) {
	    buf[12] = '\0';
	    if (cvt_ascii_address(dev, buf) == 0)
		    rc = 0;
    }
    kfree(buf);

    return rc;
}
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Dominik Brodowski7252.17%233.33%


Linus Torvalds (pre-git)4532.61%116.67%


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Chuck Ebbert42.90%116.67%


Ken Kawasaki21.45%116.67%


Total138100.00%6100.00%



;

/*======================================================================

    Configuration stuff for the Motorola Mariner

    mot_config() writes directly to the Mariner configuration
    registers because the CIS is just bogus.

======================================================================*/




static void mot_config(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    struct smc_private *smc = netdev_priv(dev);
    unsigned int ioaddr = dev->base_addr;
    unsigned int iouart = link->resource[1]->start;

    /* Set UART base address and force map with COR bit 1 */
    writeb(iouart & 0xff,        smc->base + MOT_UART + CISREG_IOBASE_0);
    writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
    writeb(MOT_NORMAL,           smc->base + MOT_UART + CISREG_COR);

    /* Set SMC base address and force map with COR bit 1 */
    writeb(ioaddr & 0xff,        smc->base + MOT_LAN + CISREG_IOBASE_0);
    writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
    writeb(MOT_NORMAL,           smc->base + MOT_LAN + CISREG_COR);

    /* Wait for things to settle down */
    mdelay(100);
}


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Linus Torvalds (pre-git)13487.58%228.57%


Dominik Brodowski85.23%228.57%


Daniel Ritz42.61%114.29%


Olof Johansson42.61%114.29%


Randy Dunlap31.96%114.29%


Total153100.00%7100.00%






static int mot_setup(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    unsigned int ioaddr = dev->base_addr;
    int i, wait, loop;
    u_int addr;

    /* Read Ethernet address from Serial EEPROM */

    for (i = 0; i < 3; i++) {
	SMC_SELECT_BANK(2);
	outw(MOT_EEPROM + i, ioaddr + POINTER);
	SMC_SELECT_BANK(1);
	outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);

	for (loop = wait = 0; loop < 200; loop++) {
	    udelay(10);
	    wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
	    if (wait == 0) break;
	}
	
	if (wait)
	    return -1;
	
	addr = inw(ioaddr + GENERAL);
	dev->dev_addr[2*i]   = addr & 0xff;
	dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
    }

    return 0;
}


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Linus Torvalds (pre-git)18096.77%457.14%


Dominik Brodowski21.08%114.29%


Olof Johansson21.08%114.29%


Daniel Ritz21.08%114.29%


Total186100.00%7100.00%



/*====================================================================*/




static int smc_configcheck(struct pcmcia_device *p_dev, void *priv_data)
{
	p_dev->resource[0]->end = 16;
	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;

	return pcmcia_request_io(p_dev);
}


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Dominik Brodowski3461.82%450.00%


Linus Torvalds (pre-git)1934.55%225.00%


Yum Rayan11.82%112.50%


Andrew Morton11.82%112.50%


Total55100.00%8100.00%






static int smc_config(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    int i;

    link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;

    i = pcmcia_loop_config(link, smc_configcheck, NULL);
    if (!i)
	    dev->base_addr = link->resource[0]->start;

    return i;
}



Contributors
PersonTokensPropCommitsCommitProp
Dominik Brodowski4165.08%375.00%


Linus Torvalds (pre-git)2234.92%125.00%


Total63100.00%4100.00%






static int smc_setup(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;

    /* Check for a LAN function extension tuple */
    if (!pcmcia_get_mac_from_cis(link, dev))
	    return 0;

    /* Try the third string in the Version 1 Version/ID tuple. */
    if (link->prod_id[2]) {
	    if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
		    return 0;
    }
    return -1;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)3449.28%228.57%


Dominik Brodowski2637.68%342.86%


Yum Rayan710.14%114.29%


Daniel Ritz22.90%114.29%


Total69100.00%7100.00%



/*====================================================================*/




static int osi_config(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
    int i, j;

    link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ;
    link->resource[0]->end = 64;
    link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
    link->resource[1]->end = 8;

    /* Enable Hard Decode, LAN, Modem */
    link->io_lines = 16;
    link->config_index = 0x23;

    for (i = j = 0; j < 4; j++) {
	link->resource[1]->start = com[j];
	i = pcmcia_request_io(link);
	if (i == 0)
		break;
    }
    if (i != 0) {
	/* Fallback: turn off hard decode */
	link->config_index = 0x03;
	link->resource[1]->end = 0;
	i = pcmcia_request_io(link);
    }
    dev->base_addr = link->resource[0]->start + 0x10;
    return i;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)13469.07%426.67%


Dominik Brodowski5327.32%746.67%


Olof Johansson21.03%16.67%


Andrew Morton21.03%16.67%


Daniel Ritz21.03%16.67%


Arjan van de Ven10.52%16.67%


Total194100.00%15100.00%






static int osi_load_firmware(struct pcmcia_device *link)
{
	const struct firmware *fw;
	int i, err;

	err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
	if (err) {
		pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
		return err;
	}

	/* Download the Seven of Diamonds firmware */
	for (i = 0; i < fw->size; i++) {
	    outb(fw->data[i], link->resource[0]->start + 2);
	    udelay(50);
	}
	release_firmware(fw);
	return err;
}


Contributors
PersonTokensPropCommitsCommitProp
Jaswinder Singh Rajput9994.29%150.00%


Dominik Brodowski65.71%150.00%


Total105100.00%2100.00%






static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
			  tuple_t *tuple,
			  void *priv)
{
	struct net_device *dev = priv;
	int i;

	if (tuple->TupleDataLen < 8)
		return -EINVAL;
	if (tuple->TupleData[0] != 0x04)
		return -EINVAL;
	for (i = 0; i < 6; i++)
		dev->dev_addr[i] = tuple->TupleData[i+2];
	return 0;
}
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)5157.95%233.33%


Dominik Brodowski2932.95%233.33%


Yum Rayan77.95%116.67%


Daniel Ritz11.14%116.67%


Total88100.00%6100.00%



;





static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
{
    struct net_device *dev = link->priv;
    int rc;

    /* Read the station address from tuple 0x90, subtuple 0x04 */
    if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
	    return -1;

    if (((manfid == MANFID_OSITECH) &&
	 (cardid == PRODID_OSITECH_SEVEN)) ||
	((manfid == MANFID_PSION) &&
	 (cardid == PRODID_PSION_NET100))) {
	rc = osi_load_firmware(link);
	if (rc)
		return rc;
    } else if (manfid == MANFID_OSITECH) {
	/* Make sure both functions are powered up */
	set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR);
	/* Now, turn on the interrupt for both card functions */
	set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR);
	dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
	      inw(link->resource[0]->start + OSITECH_AUI_PWR),
	      inw(link->resource[0]->start + OSITECH_RESET_ISR));
    }
    return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)9151.41%228.57%


Dominik Brodowski7944.63%342.86%


Jaswinder Singh Rajput63.39%114.29%


Yum Rayan10.56%114.29%


Total177100.00%7100.00%






static int smc91c92_suspend(struct pcmcia_device *link)
{
	struct net_device *dev = link->priv;

	if (link->open)
		netif_device_detach(dev);

	return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)1852.94%240.00%


Dominik Brodowski1441.18%240.00%


Daniel Ritz25.88%120.00%


Total34100.00%5100.00%






static int smc91c92_resume(struct pcmcia_device *link)
{
	struct net_device *dev = link->priv;
	struct smc_private *smc = netdev_priv(dev);
	int i;

	if ((smc->manfid == MANFID_MEGAHERTZ) &&
	    (smc->cardid == PRODID_MEGAHERTZ_EM3288))
		mhz_3288_power(link);
	if (smc->manfid == MANFID_MOTOROLA)
		mot_config(link);
	if ((smc->manfid == MANFID_OSITECH) &&
	    (smc->cardid != PRODID_OSITECH_SEVEN)) {
		/* Power up the card and enable interrupts */
		set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
		set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
	}
	if (((smc->manfid == MANFID_OSITECH) &&
	     (smc->cardid == PRODID_OSITECH_SEVEN)) ||
	    ((smc->manfid == MANFID_PSION) &&
	     (smc->cardid == PRODID_PSION_NET100))) {
		i = osi_load_firmware(link);
		if (i) {
			netdev_err(dev, "Failed to load firmware\n");
			return i;
		}
	}
	if (link->open) {
		smc_reset(dev);
		netif_device_attach(dev);
	}

	return 0;
}



Contributors
PersonTokensPropCommitsCommitProp
Dominik Brodowski14070.00%240.00%


Linus Torvalds (pre-git)4723.50%120.00%


Jaswinder Singh Rajput94.50%120.00%


Ben Boeckel42.00%120.00%


Total200100.00%5100.00%



/*======================================================================

    This verifies that the chip is some SMC91cXX variant, and returns
    the revision code if successful.  Otherwise, it returns -ENODEV.

======================================================================*/




static int check_sig(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    unsigned int ioaddr = dev->base_addr;
    int width;
    u_short s;

    SMC_SELECT_BANK(1);
    if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
	/* Try powering up the chip */
	outw(0, ioaddr + CONTROL);
	mdelay(55);
    }

    /* Try setting bus width */
    width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO);
    s = inb(ioaddr + CONFIG);
    if (width)
	s |= CFG_16BIT;
    else
	s &= ~CFG_16BIT;
    outb(s, ioaddr + CONFIG);

    /* Check Base Address Register to make sure bus width is OK */
    s = inw(ioaddr + BASE_ADDR);
    if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
	((s >> 8) != (s & 0xff))) {
	SMC_SELECT_BANK(3);
	s = inw(ioaddr + REVISION);
	return s & 0xff;
    }

    if (width) {
	    netdev_info(dev, "using 8-bit IO window\n");

	    smc91c92_suspend(link);
	    pcmcia_fixup_iowidth(link);
	    smc91c92_resume(link);
	    return check_sig(link);
    }
    return -ENODEV;
}


Contributors
PersonTokensPropCommitsCommitProp
Dominik Brodowski18083.72%535.71%


Linus Torvalds (pre-git)198.84%214.29%


Yum Rayan52.33%17.14%


Daniel Ritz31.40%17.14%


Ben Boeckel31.40%17.14%


Olof Johansson20.93%17.14%


Andrew Morton10.47%17.14%


Linus Torvalds10.47%17.14%


Joe Perches10.47%17.14%


Total215100.00%14100.00%






static int smc91c92_config(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    struct smc_private *smc = netdev_priv(dev);
    char *name;
    int i, rev, j = 0;
    unsigned int ioaddr;
    u_long mir;

    dev_dbg(&link->dev, "smc91c92_config\n");

    smc->manfid = link->manf_id;
    smc->cardid = link->card_id;

    if ((smc->manfid == MANFID_OSITECH) &&
	(smc->cardid != PRODID_OSITECH_SEVEN)) {
	i = osi_config(link);
    } else if ((smc->manfid == MANFID_MOTOROLA) ||
	       ((smc->manfid == MANFID_MEGAHERTZ) &&
		((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
		 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
	i = mhz_mfc_config(link);
    } else {
	i = smc_config(link);
    }
    if (i)
	    goto config_failed;

    i = pcmcia_request_irq(link, smc_interrupt);
    if (i)
	    goto config_failed;
    i = pcmcia_enable_device(link);
    if (i)
	    goto config_failed;

    if (smc->manfid == MANFID_MOTOROLA)
	mot_config(link);

    dev->irq = link->irq;

    if ((if_port >= 0) && (if_port <= 2))
	dev->if_port = if_port;
    else
	dev_notice(&link->dev, "invalid if_port requested\n");

    switch (smc->manfid) {
    case MANFID_OSITECH:
    case MANFID_PSION:
	i = osi_setup(link, smc->manfid, smc->cardid); break;
    case MANFID_SMC:
    case MANFID_NEW_MEDIA:
	i = smc_setup(link); break;
    case 0x128: /* For broken Megahertz cards */
    case MANFID_MEGAHERTZ:
	i = mhz_setup(link); break;
    case MANFID_MOTOROLA:
    default: /* get the hw address from EEPROM */
	i = mot_setup(link); break;
    }

    if (i != 0) {
	dev_notice(&link->dev, "Unable to find hardware address.\n");
	goto config_failed;
    }

    smc->duplex = 0;
    smc->rx_ovrn = 0;

    rev = check_sig(link);
    name = "???";
    if (rev > 0)
	switch (rev >> 4) {
	case 3: name = "92"; break;
	case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
	case 5: name = "95"; break;
	case 7: name = "100"; break;
	case 8: name = "100-FD"; break;
	case 9: name = "110"; break;
	}

    ioaddr = dev->base_addr;
    if (rev > 0) {
	u_long mcr;
	SMC_SELECT_BANK(0);
	mir = inw(ioaddr + MEMINFO) & 0xff;
	if (mir == 0xff) mir++;
	/* Get scale factor for memory size */
	mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
	mir *= 128 * (1<<((mcr >> 9) & 7));
	SMC_SELECT_BANK(1);
	smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
	smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
	if (smc->manfid == MANFID_OSITECH)
	    smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
	if ((rev >> 4) >= 7)
	    smc->cfg |= CFG_MII_SELECT;
    } else
	mir = 0;

    if (smc->cfg & CFG_MII_SELECT) {
	SMC_SELECT_BANK(3);

	for (i = 0; i < 32; i++) {
	    j = mdio_read(dev, i, 1);
	    if ((j != 0) && (j != 0xffff)) break;
	}
	smc->mii_if.phy_id = (i < 32) ? i : -1;

	SMC_SELECT_BANK(0);
    }

    SET_NETDEV_DEV(dev, &link->dev);

    if (register_netdev(dev) != 0) {
	dev_err(&link->dev, "register_netdev() failed\n");
	goto config_undo;
    }

    netdev_info(dev, "smc91c%s rev %d: io %#3lx, irq %d, hw_addr %pM\n",
		name, (rev & 0x0f), dev->base_addr, dev->irq, dev->dev_addr);

    if (rev > 0) {
	if (mir & 0x3ff)
	    netdev_info(dev, "  %lu byte", mir);
	else
	    netdev_info(dev, "  %lu kb", mir>>10);
	pr_cont(" buffer, %s xcvr\n",
		(smc->cfg & CFG_MII_SELECT) ? "MII" : if_names[dev->if_port]);
    }

    if (smc->cfg & CFG_MII_SELECT) {
	if (smc->mii_if.phy_id != -1) {
	    netdev_dbg(dev, "  MII transceiver at index %d, status %x\n",
		       smc->mii_if.phy_id, j);
	} else {
	    netdev_notice(dev, "  No MII transceivers found!\n");
	}
    }
    return 0;

config_undo:
    unregister_netdev(dev);
config_failed:
    smc91c92_release(link);
    free_netdev(dev);
    return -ENODEV;
} 
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)51560.02%623.08%


Dominik Brodowski22225.87%934.62%


Linus Torvalds404.66%13.85%


Joe Perches384.43%27.69%


Andrew Morton192.21%27.69%


David Hinds101.17%13.85%


Ken Kawasaki60.70%13.85%


Daniel Ritz20.23%13.85%


Yum Rayan20.23%13.85%


Randy Dunlap20.23%13.85%


Olof Johansson20.23%13.85%


Total858100.00%26100.00%



/* smc91c92_config */




static void smc91c92_release(struct pcmcia_device *link)
{
	dev_dbg(&link->dev, "smc91c92_release\n");
	if (link->resource[2]->end) {
		struct net_device *dev = link->priv;
		struct smc_private *smc = netdev_priv(dev);
		iounmap(smc->base);
	}
	pcmcia_disable_device(link);
}


Contributors
PersonTokensPropCommitsCommitProp
Dominik Brodowski4670.77%583.33%


Linus Torvalds (pre-git)1929.23%116.67%


Total65100.00%6100.00%



/*======================================================================

    MII interface support for SMC91cXX based cards
======================================================================*/


#define MDIO_SHIFT_CLK		0x04

#define MDIO_DATA_OUT		0x01

#define MDIO_DIR_WRITE		0x08

#define MDIO_DATA_WRITE0	(MDIO_DIR_WRITE)

#define MDIO_DATA_WRITE1	(MDIO_DIR_WRITE | MDIO_DATA_OUT)

#define MDIO_DATA_READ		0x02




static void mdio_sync(unsigned int addr)
{
    int bits;
    for (bits = 0; bits < 32; bits++) {
	outb(MDIO_DATA_WRITE1, addr);
	outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
    }
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds4193.18%133.33%


Olof Johansson24.55%133.33%


David Hinds12.27%133.33%


Total44100.00%3100.00%






static int mdio_read(struct net_device *dev, int phy_id, int loc)
{
    unsigned int addr = dev->base_addr + MGMT;
    u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
    int i, retval = 0;

    mdio_sync(addr);
    for (i = 13; i >= 0; i--) {
	int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
	outb(dat, addr);
	outb(dat | MDIO_SHIFT_CLK, addr);
    }
    for (i = 19; i > 0; i--) {
	outb(0, addr);
	retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
	outb(MDIO_SHIFT_CLK, addr);
    }
    return (retval>>1) & 0xffff;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds14790.18%125.00%


Zwane Mwaikambo127.36%125.00%


Olof Johansson21.23%125.00%


David Hinds21.23%125.00%


Total163100.00%4100.00%






static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
{
    unsigned int addr = dev->base_addr + MGMT;
    u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
    int i;

    mdio_sync(addr);
    for (i = 31; i >= 0; i--) {
	int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
	outb(dat, addr);
	outb(dat | MDIO_SHIFT_CLK, addr);
    }
    for (i = 1; i >= 0; i--) {
	outb(0, addr);
	outb(MDIO_SHIFT_CLK, addr);
    }
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds12888.89%125.00%


Zwane Mwaikambo128.33%125.00%


Olof Johansson21.39%125.00%


David Hinds21.39%125.00%


Total144100.00%4100.00%



/*======================================================================

    The driver core code, most of which should be common with a
    non-PCMCIA implementation.

======================================================================*/

#ifdef PCMCIA_DEBUG



static void smc_dump(struct net_device *dev)
{
    unsigned int ioaddr = dev->base_addr;
    u_short i, w, save;
    save = inw(ioaddr + BANK_SELECT);
    for (w = 0; w < 4; w++) {
	SMC_SELECT_BANK(w);
	netdev_dbg(dev, "bank %d: ", w);
	for (i = 0; i < 14; i += 2)
	    pr_cont(" %04x", inw(ioaddr + i));
	pr_cont("\n");
    }
    outw(save, ioaddr + BANK_SELECT);
}

Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)9793.27%125.00%


Joe Perches43.85%125.00%


Olof Johansson21.92%125.00%


Ben Boeckel10.96%125.00%


Total104100.00%4100.00%



#endif




static int smc_open(struct net_device *dev)
{
    struct smc_private *smc = netdev_priv(dev);
    struct pcmcia_device *link = smc->p_dev;

    dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
	  dev->name, dev, inw(dev->base_addr + BANK_SELECT));
#ifdef PCMCIA_DEBUG
    smc_dump(dev);
#endif

    /* Check that the PCMCIA card is still here. */
    if (!pcmcia_dev_present(link))
	return -ENODEV;
    /* Physical device present signature. */
    if (check_sig(link) < 0) {
	netdev_info(dev, "Yikes!  Bad chip signature!\n");
	return -ENODEV;
    }
    link->open++;

    netif_start_queue(dev);
    smc->saved_skb = NULL;
    smc->packets_waiting = 0;

    smc_reset(dev);
    setup_timer(&smc->media, media_check, (u_long)dev);
    mod_timer(&smc->media, jiffies + HZ);

    return 0;
} 
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)12277.22%321.43%


Dominik Brodowski127.59%428.57%


Vaishali Thakkar85.06%17.14%


Andrew Morton53.16%17.14%


Joe Perches42.53%17.14%


Randy Dunlap31.90%17.14%


David Hinds21.27%17.14%


Al Viro10.63%17.14%


Daniel Ritz10.63%17.14%


Total158100.00%14100.00%



/* smc_open */

/*====================================================================*/




static int smc_close(struct net_device *dev)
{
    struct smc_private *smc = netdev_priv(dev);
    struct pcmcia_device *link = smc->p_dev;
    unsigned int ioaddr = dev->base_addr;

    dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
	  dev->name, inw(ioaddr + BANK_SELECT));

    netif_stop_queue(dev);

    /* Shut off all interrupts, and turn off the Tx and Rx sections.
       Don't bother to check for chip present. */
    SMC_SELECT_BANK(2);	/* Nominally paranoia, but do no assume... */
    outw(0, ioaddr + INTERRUPT);
    SMC_SELECT_BANK(0);
    mask_bits(0xff00, ioaddr + RCR);
    mask_bits(0xff00, ioaddr + TCR);

    /* Put the chip into power-down mode. */
    SMC_SELECT_BANK(1);
    outw(CTL_POWERDOWN, ioaddr + CONTROL );

    link->open--;
    del_timer_sync(&smc->media);

    return 0;
} 
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)11888.06%330.00%


Dominik Brodowski85.97%330.00%


Randy Dunlap32.24%110.00%


David Hinds21.49%110.00%


Olof Johansson21.49%110.00%


Alan Cox10.75%110.00%


Total134100.00%10100.00%



/* smc_close */

/*======================================================================

   Transfer a packet to the hardware and trigger the packet send.
   This may be called at either from either the Tx queue code
   or the interrupt handler.

======================================================================*/




static void smc_hardware_send_packet(struct net_device * dev)
{
    struct smc_private *smc = netdev_priv(dev);
    struct sk_buff *skb = smc->saved_skb;
    unsigned int ioaddr = dev->base_addr;
    u_char packet_no;

    if (!skb) {
	netdev_err(dev, "In XMIT with no packet to send\n");
	return;
    }

    /* There should be a packet slot waiting. */
    packet_no = inw(ioaddr + PNR_ARR) >> 8;
    if (packet_no & 0x80) {
	/* If not, there is a hardware problem!  Likely an ejected card. */
	netdev_warn(dev, "hardware Tx buffer allocation failed, status %#2.2x\n",
		    packet_no);
	dev_kfree_skb_irq(skb);
	smc->saved_skb = NULL;
	netif_start_queue(dev);
	return;
    }

    dev->stats.tx_bytes += skb->len;
    /* The card should use the just-allocated buffer. */
    outw(packet_no, ioaddr + PNR_ARR);
    /* point to the beginning of the packet */
    outw(PTR_AUTOINC , ioaddr + POINTER);

    /* Send the packet length (+6 for status, length and ctl byte)
       and the status word (set to zeros). */
    {
	u_char *buf = skb->data;
	u_int length = skb->len; /* The chip will pad to ethernet min. */

	netdev_dbg(dev, "Trying to xmit packet of length %d\n", length);
	
	/* send the packet length: +6 for status word, length, and ctl */
	outw(0, ioaddr + DATA_1);
	outw(length + 6, ioaddr + DATA_1);
	outsw(ioaddr + DATA_1, buf, length >> 1);
	
	/* The odd last byte, if there is one, goes in the control word. */
	outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
    }

    /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
    outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
	 (inw(ioaddr + INTERRUPT) & 0xff00),
	 ioaddr + INTERRUPT);

    /* The chip does the rest of the work. */
    outw(MC_ENQUEUE , ioaddr + MMU_CMD);

    smc->saved_skb = NULL;
    dev_kfree_skb_irq(skb);
    netif_trans_update(dev);
    netif_start_queue(dev);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)26293.57%444.44%


Joe Perches93.21%111.11%


Florian Westphal31.07%111.11%


Randy Dunlap31.07%111.11%


Olof Johansson20.71%111.11%


Stephen Hemminger10.36%111.11%


Total280100.00%9100.00%



/*====================================================================*/




static void smc_tx_timeout(struct net_device *dev)
{
    struct smc_private *smc = netdev_priv(dev);
    unsigned int ioaddr = dev->base_addr;

    netdev_notice(dev, "transmit timed out, Tx_status %2.2x status %4.4x.\n",
		  inw(ioaddr)&0xff, inw(ioaddr + 2));
    dev->stats.tx_errors++;
    smc_reset(dev);
    netif_trans_update(dev); /* prevent tx timeout */
    smc->saved_skb = NULL;
    netif_wake_queue(dev);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)6582.28%436.36%


Randy Dunlap33.80%19.09%


Florian Westphal33.80%19.09%


Joe Perches33.80%19.09%


Olof Johansson22.53%19.09%


Eric Dumazet11.27%19.09%


Stephen Hemminger11.27%19.09%


Linus Torvalds11.27%19.09%


Total79100.00%11100.00%






static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
					struct net_device *dev)
{
    struct smc_private *smc = netdev_priv(dev);
    unsigned int ioaddr = dev->base_addr;
    u_short num_pages;
    short time_out, ir;
    unsigned long flags;

    netif_stop_queue(dev);

    netdev_dbg(dev, "smc_start_xmit(length = %d) called, status %04x\n",
	       skb->len, inw(ioaddr + 2));

    if (smc->saved_skb) {
	/* THIS SHOULD NEVER HAPPEN. */
	dev->stats.tx_aborted_errors++;
	netdev_dbg(dev, "Internal error -- sent packet while busy\n");
	return NETDEV_TX_BUSY;
    }
    smc->saved_skb = skb;

    num_pages = skb->len >> 8;

    if (num_pages > 7) {
	netdev_err(dev, "Far too big packet error: %d pages\n", num_pages);
	dev_kfree_skb (skb);
	smc->saved_skb = NULL;
	dev->stats.tx_dropped++;
	return NETDEV_TX_OK;		/* Do not re-queue this packet. */
    }
    /* A packet is now waiting. */
    smc->packets_waiting++;

    spin_lock_irqsave(&smc->lock, flags);
    SMC_SELECT_BANK(2);	/* Paranoia, we should always be in window 2 */

    /* need MC_RESET to keep the memory consistent. errata? */
    if (smc->rx_ovrn) {
	outw(MC_RESET, ioaddr + MMU_CMD);
	smc->rx_ovrn = 0;
    }

    /* Allocate the memory; send the packet now if we win. */
    outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
    for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
	ir = inw(ioaddr+INTERRUPT);
	if (ir & IM_ALLOC_INT) {
	    /* Acknowledge the interrupt, send the packet. */
	    outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
	    smc_hardware_send_packet(dev);	/* Send the packet now.. */
	    spin_unlock_irqrestore(&smc->lock, flags);
	    return NETDEV_TX_OK;
	}
    }

    /* Otherwise defer until the Tx-space-allocated interrupt. */
    netdev_dbg(dev, "memory allocation deferred.\n");
    outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
    spin_unlock_irqrestore(&smc->lock, flags);

    return NETDEV_TX_OK;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)22973.16%428.57%


Jun Komuro3410.86%17.14%


David Hinds247.67%17.14%


Joe Perches103.19%17.14%


Patrick McHardy41.28%214.29%


Ben Boeckel41.28%17.14%


Randy Dunlap30.96%17.14%


Stephen Hemminger30.96%214.29%


Olof Johansson20.64%17.14%


Total313100.00%14100.00%



/*======================================================================

    Handle a Tx anomalous event.  Entered while in Window 2.

======================================================================*/




static void smc_tx_err(struct net_device * dev)
{
    struct smc_private *smc = netdev_priv(dev);
    unsigned int ioaddr = dev->base_addr;
    int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
    int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
    int tx_status;

    /* select this as the packet to read from */
    outw(packet_no, ioaddr + PNR_ARR);

    /* read the first word from this packet */
    outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);

    tx_status = inw(ioaddr + DATA_1);

    dev->stats.tx_errors++;
    if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
    if (tx_status & TS_LATCOL)  dev->stats.tx_window_errors++;
    if (tx_status & TS_16COL) {
	dev->stats.tx_aborted_errors++;
	smc->tx_err++;
    }

    if (tx_status & TS_SUCCESS) {
	netdev_notice(dev, "Successful packet caused error interrupt?\n");
    }
    /* re-enable transmit */
    SMC_SELECT_BANK(0);
    outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
    SMC_SELECT_BANK(2);

    outw(MC_FREEPKT, ioaddr + MMU_CMD); 	/* Free the packet memory. */

    /* one less packet waiting for me */
    smc->packets_waiting--;

    outw(saved_packet, ioaddr + PNR_ARR);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)19792.49%228.57%


Stephen Hemminger41.88%114.29%


David Hinds41.88%114.29%


Randy Dunlap31.41%114.29%


Joe Perches31.41%114.29%


Olof Johansson20.94%114.29%


Total213100.00%7100.00%



/*====================================================================*/




static void smc_eph_irq(struct net_device *dev)
{
    struct smc_private *smc = netdev_priv(dev);
    unsigned int ioaddr = dev->base_addr;
    u_short card_stats, ephs;

    SMC_SELECT_BANK(0);
    ephs = inw(ioaddr + EPH);
    netdev_dbg(dev, "Ethernet protocol handler interrupt, status %4.4x.\n",
	       ephs);
    /* Could be a counter roll-over warning: update stats. */
    card_stats = inw(ioaddr + COUNTER);
    /* single collisions */
    dev->stats.collisions += card_stats & 0xF;
    card_stats >>= 4;
    /* multiple collisions */
    dev->stats.collisions += card_stats & 0xF;
#if 0 		/* These are for when linux supports these statistics */
    card_stats >>= 4;			/* deferred */
    card_stats >>= 4;			/* excess deferred */
#endif
    /* If we had a transmit error we must re-enable the transmitter. */
    outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);

    /* Clear a link error interrupt. */
    SMC_SELECT_BANK(1);
    outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
    outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
	 ioaddr + CONTROL);
    SMC_SELECT_BANK(2);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)14591.19%337.50%


David Hinds42.52%112.50%


Ben Boeckel31.89%112.50%


Randy Dunlap31.89%112.50%


Stephen Hemminger21.26%112.50%


Olof Johansson21.26%112.50%


Total159100.00%8100.00%



/*====================================================================*/




static irqreturn_t smc_interrupt(int irq, void *dev_id)
{
    struct net_device *dev = dev_id;
    struct smc_private *smc = netdev_priv(dev);
    unsigned int ioaddr;
    u_short saved_bank, saved_pointer, mask, status;
    unsigned int handled = 1;
    char bogus_cnt = INTR_WORK;		/* Work we are willing to do. */

    if (!netif_device_present(dev))
	return IRQ_NONE;

    ioaddr = dev->base_addr;

    netdev_dbg(dev, "SMC91c92 interrupt %d at %#x.\n",
	       irq, ioaddr);

    spin_lock(&smc->lock);
    smc->watchdog = 0;
    saved_bank = inw(ioaddr + BANK_SELECT);
    if ((saved_bank & 0xff00) != 0x3300) {
	/* The device does not exist -- the card could be off-line, or
           maybe it has been ejected. */
	netdev_dbg(dev, "SMC91c92 interrupt %d for non-existent/ejected device.\n",
		   irq);
	handled = 0;
	goto irq_done;
    }

    SMC_SELECT_BANK(2);
    saved_pointer = inw(ioaddr + POINTER);
    mask = inw(ioaddr + INTERRUPT) >> 8;
    /* clear all interrupts */
    outw(0, ioaddr + INTERRUPT);

    do { /* read the status flag, and mask it */
	status = inw(ioaddr + INTERRUPT) & 0xff;
	netdev_dbg(dev, "Status is %#2.2x (mask %#2.2x).\n",
		   status, mask);
	if ((status & mask) == 0) {
	    if (bogus_cnt == INTR_WORK)
		handled = 0;
	    break;
	}
	if (status & IM_RCV_INT) {
	    /* Got a packet(s). */
	    smc_rx(dev);
	}
	if (status & IM_TX_INT) {
	    smc_tx_err(dev);
	    outw(IM_TX_INT, ioaddr + INTERRUPT);
	}
	status &= mask;
	if (status & IM_TX_EMPTY_INT) {
	    outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
	    mask &= ~IM_TX_EMPTY_INT;
	    dev->stats.tx_packets += smc->packets_waiting;
	    smc->packets_waiting = 0;
	}
	if (status & IM_ALLOC_INT) {
	    /* Clear this interrupt so it doesn't happen again */
	    mask &= ~IM_ALLOC_INT;
	
	    smc_hardware_send_packet(dev);
	
	    /* enable xmit interrupts based on this */
	    mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
	
	    /* and let the card send more packets to me */
	    netif_wake_queue(dev);
	}
	if (status & IM_RX_OVRN_INT) {
	    dev->stats.rx_errors++;
	    dev->stats.rx_fifo_errors++;
	    if (smc->duplex)
		smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
	    outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
	}
	if (status & IM_EPH_INT)
	    smc_eph_irq(dev);
    } while (--bogus_cnt);

    netdev_dbg(dev, "  Restoring saved registers mask %2.2x bank %4.4x pointer %4.4x.\n",
	       mask, saved_bank, saved_pointer);

    /* restore state register */
    outw((mask<<8), ioaddr + INTERRUPT);
    outw(saved_pointer, ioaddr + POINTER);
    SMC_SELECT_BANK(saved_bank);

    netdev_dbg(dev, "Exiting interrupt IRQ%d.\n", irq);

irq_done:

    if ((smc->manfid == MANFID_OSITECH) &&
	(smc->cardid != PRODID_OSITECH_SEVEN)) {
	/* Retrigger interrupt if needed */
	mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
	set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
    }
    if (smc->manfid == MANFID_MOTOROLA) {
	u_char cor;
	cor = readb(smc->base + MOT_UART + CISREG_COR);
	writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
	writeb(cor, smc->base + MOT_UART + CISREG_COR);
	cor = readb(smc->base + MOT_LAN + CISREG_COR);
	writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
	writeb(cor, smc->base + MOT_LAN + CISREG_COR);
    }

    if ((smc->base != NULL) &&  /* Megahertz MFC's */
	(smc->manfid == MANFID_MEGAHERTZ) &&
	(smc->cardid == PRODID_MEGAHERTZ_EM3288)) {

	u_char tmp;
	tmp = readb(smc->base+MEGAHERTZ_ISR);
	tmp = readb(smc->base+MEGAHERTZ_ISR);

	/* Retrigger interrupt if needed */
	writeb(tmp, smc->base + MEGAHERTZ_ISR);
	writeb(tmp, smc->base + MEGAHERTZ_ISR);
    }

    spin_unlock(&smc->lock);
    return IRQ_RETVAL(handled);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)53278.81%533.33%


Ken Kawasaki497.26%16.67%


Andrew Morton324.74%16.67%


Ben Boeckel162.37%16.67%


Jun Komuro162.37%16.67%


David Hinds131.93%16.67%


Linus Torvalds50.74%16.67%


Daniel Ritz40.59%16.67%


Randy Dunlap30.44%16.67%


Stephen Hemminger30.44%16.67%


Olof Johansson20.30%16.67%


Total675100.00%15100.00%



/*====================================================================*/




static void smc_rx(struct net_device *dev)
{
    unsigned int ioaddr = dev->base_addr;
    int rx_status;
    int packet_length;	/* Caution: not frame length, rather words
                           to transfer from the chip. */

    /* Assertion: we are in Window 2. */

    if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
	netdev_err(dev, "smc_rx() with nothing on Rx FIFO\n");
	return;
    }

    /*  Reset the read pointer, and read the status and packet length. */
    outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
    rx_status = inw(ioaddr + DATA_1);
    packet_length = inw(ioaddr + DATA_1) & 0x07ff;

    netdev_dbg(dev, "Receive status %4.4x length %d.\n",
	       rx_status, packet_length);

    if (!(rx_status & RS_ERRORS)) {
	/* do stuff to make a new packet */
	struct sk_buff *skb;
	struct smc_private *smc = netdev_priv(dev);
	
	/* Note: packet_length adds 5 or 6 extra bytes here! */
	skb = netdev_alloc_skb(dev, packet_length+2);
	
	if (skb == NULL) {
	    netdev_dbg(dev, "Low memory, packet dropped.\n");
	    dev->stats.rx_dropped++;
	    outw(MC_RELEASE, ioaddr + MMU_CMD);
	    return;
	}
	
	packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
	skb_reserve(skb, 2);
	insw(ioaddr+DATA_1, skb_put(skb, packet_length),
	     (packet_length+1)>>1);
	skb->protocol = eth_type_trans(skb, dev);
	
	netif_rx(skb);
	smc->last_rx = jiffies;
	dev->stats.rx_packets++;
	dev->stats.rx_bytes += packet_length;
	if (rx_status & RS_MULTICAST)
	    dev->stats.multicast++;
    } else {
	/* error ... */
	dev->stats.rx_errors++;
	
	if (rx_status & RS_ALGNERR)  dev->stats.rx_frame_errors++;
	if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
	    dev->stats.rx_length_errors++;
	if (rx_status & RS_BADCRC)	dev->stats.rx_crc_errors++;
    }
    /* Let the MMU free the memory of this packet. */
    outw(MC_RELEASE, ioaddr + MMU_CMD);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)28087.77%112.50%


Tobias Klauser113.45%112.50%


Stephen Hemminger82.51%112.50%


Ben Boeckel61.88%112.50%


Linus Torvalds61.88%112.50%


Pradeep A. Dalvi30.94%112.50%


Joe Perches30.94%112.50%


Olof Johansson20.63%112.50%


Total319100.00%8100.00%



/*======================================================================

    Set the receive mode.

    This routine is used by both the protocol level to notify us of
    promiscuous/multicast mode changes, and by the open/reset code to
    initialize the Rx registers.  We always set the multicast list and
    leave the receiver running.

======================================================================*/




static void set_rx_mode(struct net_device *dev)
{
    unsigned int ioaddr = dev->base_addr;
    struct smc_private *smc = netdev_priv(dev);
    unsigned char multicast_table[8];
    unsigned long flags;
    u_short rx_cfg_setting;
    int i;

    memset(multicast_table, 0, sizeof(multicast_table));

    if (dev->flags & IFF_PROMISC) {
	rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
    } else if (dev->flags & IFF_ALLMULTI)
	rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
    else {
	if (!netdev_mc_empty(dev)) {
	    struct netdev_hw_addr *ha;

	    netdev_for_each_mc_addr(ha, dev) {
		u_int position = ether_crc(6, ha->addr);
		multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
	    }
	}
	rx_cfg_setting = RxStripCRC | RxEnable;
    }

    /* Load MC table and Rx setting into the chip without interrupts. */
    spin_lock_irqsave(&smc->lock, flags);
    SMC_SELECT_BANK(3);
    for (i = 0; i < 8; i++)
	outb(multicast_table[i], ioaddr + MULTICAST0 + i);
    SMC_SELECT_BANK(0);
    outw(rx_cfg_setting, ioaddr + RCR);
    SMC_SELECT_BANK(2);
    spin_unlock_irqrestore(&smc->lock, flags);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)12755.22%220.00%


Jiri Pirko4419.13%330.00%


Ken Kawasaki3414.78%110.00%


Zwane Mwaikambo198.26%110.00%


Randy Dunlap31.30%110.00%


Olof Johansson20.87%110.00%


Celso González10.43%110.00%


Total230100.00%10100.00%



/*======================================================================

    Senses when a card's config changes. Here, it's coax or TP.

======================================================================*/




static int s9k_config(struct net_device *dev, struct ifmap *map)
{
    struct smc_private *smc = netdev_priv(dev);
    if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
	if (smc->cfg & CFG_MII_SELECT)
	    return -EOPNOTSUPP;
	else if (map->port > 2)
	    return -EINVAL;
	dev->if_port = map->port;
	netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
	smc_reset(dev);
    }
    return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)10394.50%360.00%


Joe Perches32.75%120.00%


Randy Dunlap32.75%120.00%


Total109100.00%5100.00%



/*======================================================================

    Reset the chip, reloading every register that might be corrupted.

======================================================================*/

/*
  Set transceiver type, perhaps to something other than what the user
  specified in dev->if_port.
*/



static void smc_set_xcvr(struct net_device *dev, int if_port)
{
    struct smc_private *smc = netdev_priv(dev);
    unsigned int ioaddr = dev->base_addr;
    u_short saved_bank;

    saved_bank = inw(ioaddr + BANK_SELECT);
    SMC_SELECT_BANK(1);
    if (if_port == 2) {
	outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
	if ((smc->manfid == MANFID_OSITECH) &&
	    (smc->cardid != PRODID_OSITECH_SEVEN))
	    set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
	smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
    } else {
	outw(smc->cfg, ioaddr + CONFIG);
	if ((smc->manfid == MANFID_OSITECH) &&
	    (smc->cardid != PRODID_OSITECH_SEVEN))
	    mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
	smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
    }
    SMC_SELECT_BANK(saved_bank);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)17997.28%250.00%


Randy Dunlap31.63%125.00%


Olof Johansson21.09%125.00%


Total184100.00%4100.00%






static void smc_reset(struct net_device *dev)
{
    unsigned int ioaddr = dev->base_addr;
    struct smc_private *smc = netdev_priv(dev);
    int i;

    netdev_dbg(dev, "smc91c92 reset called.\n");

    /* The first interaction must be a write to bring the chip out
       of sleep mode. */
    SMC_SELECT_BANK(0);
    /* Reset the chip. */
    outw(RCR_SOFTRESET, ioaddr + RCR);
    udelay(10);

    /* Clear the transmit and receive configuration registers. */
    outw(RCR_CLEAR, ioaddr + RCR);
    outw(TCR_CLEAR, ioaddr + TCR);

    /* Set the Window 1 control, configuration and station addr registers.
       No point in writing the I/O base register ;-> */
    SMC_SELECT_BANK(1);
    /* Automatically release successfully transmitted packets,
       Accept link errors, counter and Tx error interrupts. */
    outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
	 ioaddr + CONTROL);
    smc_set_xcvr(dev, dev->if_port);
    if ((smc->manfid == MANFID_OSITECH) &&
	(smc->cardid != PRODID_OSITECH_SEVEN))
	outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
	     (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
	     ioaddr - 0x10 + OSITECH_AUI_PWR);

    /* Fill in the physical address.  The databook is wrong about the order! */
    for (i = 0; i < 6; i += 2)
	outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
	     ioaddr + ADDR0 + i);

    /* Reset the MMU */
    SMC_SELECT_BANK(2);
    outw(MC_RESET, ioaddr + MMU_CMD);
    outw(0, ioaddr + INTERRUPT);

    /* Re-enable the chip. */
    SMC_SELECT_BANK(0);
    outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
	 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
    set_rx_mode(dev);

    if (smc->cfg & CFG_MII_SELECT) {
	SMC_SELECT_BANK(3);

	/* Reset MII */
	mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);

	/* Advertise 100F, 100H, 10F, 10H */
	mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);

	/* Restart MII autonegotiation */
	mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
	mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
    }

    /* Enable interrupts. */
    SMC_SELECT_BANK(2);
    outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
	 ioaddr + INTERRUPT);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)27875.34%222.22%


Linus Torvalds5013.55%111.11%


David Hinds236.23%111.11%


Zwane Mwaikambo92.44%111.11%


Randy Dunlap30.81%111.11%


Ben Boeckel30.81%111.11%


Olof Johansson20.54%111.11%


Andreas Mohr10.27%111.11%


Total369100.00%9100.00%



/*======================================================================

    Media selection timer routine

======================================================================*/




static void media_check(u_long arg)
{
    struct net_device *dev = (struct net_device *) arg;
    struct smc_private *smc = netdev_priv(dev);
    unsigned int ioaddr = dev->base_addr;
    u_short i, media, saved_bank;
    u_short link;
    unsigned long flags;

    spin_lock_irqsave(&smc->lock, flags);

    saved_bank = inw(ioaddr + BANK_SELECT);

    if (!netif_device_present(dev))
	goto reschedule;

    SMC_SELECT_BANK(2);

    /* need MC_RESET to keep the memory consistent. errata? */
    if (smc->rx_ovrn) {
	outw(MC_RESET, ioaddr + MMU_CMD);
	smc->rx_ovrn = 0;
    }
    i = inw(ioaddr + INTERRUPT);
    SMC_SELECT_BANK(0);
    media = inw(ioaddr + EPH) & EPH_LINK_OK;
    SMC_SELECT_BANK(1);
    media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;

    SMC_SELECT_BANK(saved_bank);
    spin_unlock_irqrestore(&smc->lock, flags);

    /* Check for pending interrupt with watchdog flag set: with
       this, we can limp along even if the interrupt is blocked */
    if (smc->watchdog++ && ((i>>8) & i)) {
	if (!smc->fast_poll)
	    netdev_info(dev, "interrupt(s) dropped!\n");
	local_irq_save(flags);
	smc_interrupt(dev->irq, dev);
	local_irq_restore(flags);
	smc->fast_poll = HZ;
    }
    if (smc->fast_poll) {
	smc->fast_poll--;
	smc->media.expires = jiffies + HZ/100;
	add_timer(&smc->media);
	return;
    }

    spin_lock_irqsave(&smc->lock, flags);

    saved_bank = inw(ioaddr + BANK_SELECT);

    if (smc->cfg & CFG_MII_SELECT) {
	if (smc->mii_if.phy_id < 0)
	    goto reschedule;

	SMC_SELECT_BANK(3);
	link = mdio_read(dev, smc->mii_if.phy_id, 1);
	if (!link || (link == 0xffff)) {
	    netdev_info(dev, "MII is missing!\n");
	    smc->mii_if.phy_id = -1;
	    goto reschedule;
	}

	link &= 0x0004;
	if (link != smc->link_status) {
	    u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
	    netdev_info(dev, "%s link beat\n", link ? "found" : "lost");
	    smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
			   ? TCR_FDUPLX : 0);
	    if (link) {
		netdev_info(dev, "autonegotiation complete: "
			    "%dbaseT-%cD selected\n",
			    (p & 0x0180) ? 100 : 10, smc->duplex ? 'F' : 'H');
	    }
	    SMC_SELECT_BANK(0);
	    outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
	    smc->link_status = link;
	}
	goto reschedule;
    }

    /* Ignore collisions unless we've had no rx's recently */
    if (time_after(jiffies, smc->last_rx + HZ)) {
	if (smc->tx_err || (smc->media_status & EPH_16COL))
	    media |= EPH_16COL;
    }
    smc->tx_err = 0;

    if (media != smc->media_status) {
	if ((media & smc->media_status & 1) &&
	    ((smc->media_status ^ media) & EPH_LINK_OK))
	    netdev_info(dev, "%s link beat\n",
			smc->media_status & EPH_LINK_OK ? "lost" : "found");
	else if ((media & smc->media_status & 2) &&
		 ((smc->media_status ^ media) & EPH_16COL))
	    netdev_info(dev, "coax cable %s\n",
			media & EPH_16COL ? "problem" : "ok");
	if (dev->if_port == 0) {
	    if (media & 1) {
		if (media & EPH_LINK_OK)
		    netdev_info(dev, "flipped to 10baseT\n");
		else
		    smc_set_xcvr(dev, 2);
	    } else {
		if (media & EPH_16COL)
		    smc_set_xcvr(dev, 1);
		else
		    netdev_info(dev, "flipped to 10base2\n");
	    }
	}
	smc->media_status = media;
    }

reschedule:
    smc->media.expires = jiffies + HZ;
    add_timer(&smc->media);
    SMC_SELECT_BANK(saved_bank);
    spin_unlock_irqrestore(&smc->lock, flags);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)38652.80%423.53%


Linus Torvalds13718.74%15.88%


David Hinds8111.08%15.88%


Ken Kawasaki375.06%15.88%


Jun Komuro344.65%211.76%


Joe Perches273.69%15.88%


Zwane Mwaikambo101.37%15.88%


Daniel Ritz81.09%211.76%


Marcelo Feitoza Parisi50.68%15.88%


Randy Dunlap30.41%15.88%


Olof Johansson20.27%15.88%


Tobias Klauser10.14%15.88%


Total731100.00%17100.00%






static int smc_link_ok(struct net_device *dev)
{
    unsigned int ioaddr = dev->base_addr;
    struct smc_private *smc = netdev_priv(dev);

    if (smc->cfg & CFG_MII_SELECT) {
	return mii_link_ok(&smc->mii_if);
    } else {
        SMC_SELECT_BANK(0);
	return inw(ioaddr + EPH) & EPH_LINK_OK;
    }
}


Contributors
PersonTokensPropCommitsCommitProp
Zwane Mwaikambo6192.42%133.33%


Randy Dunlap34.55%133.33%


Olof Johansson23.03%133.33%


Total66100.00%3100.00%






static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
{
    u16 tmp;
    unsigned int ioaddr = dev->base_addr;

    ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
	SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
		
    SMC_SELECT_BANK(1);
    tmp = inw(ioaddr + CONFIG);
    ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
    ecmd->transceiver = XCVR_INTERNAL;
    ethtool_cmd_speed_set(ecmd, SPEED_10);
    ecmd->phy_address = ioaddr + MGMT;

    SMC_SELECT_BANK(0);
    tmp = inw(ioaddr + TCR);
    ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;

    return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Zwane Mwaikambo11595.04%133.33%


David Decotigny43.31%133.33%


Olof Johansson21.65%133.33%


Total121100.00%3100.00%






static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
{
    u16 tmp;
    unsigned int ioaddr = dev->base_addr;

    if (ethtool_cmd_speed(ecmd) != SPEED_10)
	return -EINVAL;
    if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
    	return -EINVAL;
    if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
	return -EINVAL;
    if (ecmd->transceiver != XCVR_INTERNAL)
    	return -EINVAL;

    if (ecmd->port == PORT_AUI)
	smc_set_xcvr(dev, 1);
    else
	smc_set_xcvr(dev, 0);

    SMC_SELECT_BANK(0);
    tmp = inw(ioaddr + TCR);
    if (ecmd->duplex == DUPLEX_FULL)
	tmp |= TCR_FDUPLX;
    else
	tmp &= ~TCR_FDUPLX;
    outw(tmp, ioaddr + TCR);
	
    return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Zwane Mwaikambo14895.48%125.00%


David Decotigny31.94%125.00%


Olof Johansson21.29%125.00%


Russell King21.29%125.00%


Total155100.00%4100.00%






static int check_if_running(struct net_device *dev)
{
	if (!netif_running(dev))
		return -EINVAL;
	return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Zwane Mwaikambo1765.38%150.00%


Al Viro934.62%150.00%


Total26100.00%2100.00%






static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
	strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
	strlcpy(info->version, DRV_VERSION, sizeof(info->version));
}


Contributors
PersonTokensPropCommitsCommitProp
Zwane Mwaikambo1939.58%133.33%


Rick Jones1633.33%133.33%


Al Viro1327.08%133.33%


Total48100.00%3100.00%






static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
	struct smc_private *smc = netdev_priv(dev);
	unsigned int ioaddr = dev->base_addr;
	u16 saved_bank = inw(ioaddr + BANK_SELECT);
	int ret;
	unsigned long flags;

	spin_lock_irqsave(&smc->lock, flags);
	SMC_SELECT_BANK(3);
	if (smc->cfg & CFG_MII_SELECT)
		ret = mii_ethtool_gset(&smc->mii_if, ecmd);
	else
		ret = smc_netdev_get_ecmd(dev, ecmd);
	SMC_SELECT_BANK(saved_bank);
	spin_unlock_irqrestore(&smc->lock, flags);
	return ret;
}


Contributors
PersonTokensPropCommitsCommitProp
Zwane Mwaikambo5447.37%120.00%


Al Viro3833.33%120.00%


Jun Komuro108.77%120.00%


Ken Kawasaki108.77%120.00%


Olof Johansson21.75%120.00%


Total114100.00%5100.00%






static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
	struct smc_private *smc = netdev_priv(dev);
	unsigned int ioaddr = dev->base_addr;
	u16 saved_bank = inw(ioaddr + BANK_SELECT);
	int ret;
	unsigned long flags;

	spin_lock_irqsave(&smc->lock, flags);
	SMC_SELECT_BANK(3);
	if (smc->cfg & CFG_MII_SELECT)
		ret = mii_ethtool_sset(&smc->mii_if, ecmd);
	else
		ret = smc_netdev_set_ecmd(dev, ecmd);
	SMC_SELECT_BANK(saved_bank);
	spin_unlock_irqrestore(&smc->lock, flags);
	return ret;
}


Contributors
PersonTokensPropCommitsCommitProp
Zwane Mwaikambo5548.25%120.00%


Al Viro3732.46%120.00%


Ken Kawasaki108.77%120.00%


Jun Komuro108.77%120.00%


Olof Johansson21.75%120.00%


Total114100.00%5100.00%






static u32 smc_get_link(struct net_device *dev)
{
	struct smc_private *smc = netdev_priv(dev);
	unsigned int ioaddr = dev->base_addr;
	u16 saved_bank = inw(ioaddr + BANK_SELECT);
	u32 ret;
	unsigned long flags;

	spin_lock_irqsave(&smc->lock, flags);
	SMC_SELECT_BANK(3);
	ret = smc_link_ok(dev);
	SMC_SELECT_BANK(saved_bank);
	spin_unlock_irqrestore(&smc->lock, flags);
	return ret;
}


Contributors
PersonTokensPropCommitsCommitProp
Al Viro4552.33%120.00%


Zwane Mwaikambo1922.09%120.00%


Jun Komuro1011.63%120.00%


Ken Kawasaki1011.63%120.00%


Olof Johansson22.33%120.00%


Total86100.00%5100.00%






static int smc_nway_reset(struct net_device *dev)
{
	struct smc_private *smc = netdev_priv(dev);
	if (smc->cfg & CFG_MII_SELECT) {
		unsigned int ioaddr = dev->base_addr;
		u16 saved_bank = inw(ioaddr + BANK_SELECT);
		int res;

		SMC_SELECT_BANK(3);
		res = mii_nway_restart(&smc->mii_if);
		SMC_SELECT_BANK(saved_bank);

		return res;
	} else
		return -EOPNOTSUPP;
}


Contributors
PersonTokensPropCommitsCommitProp
Al Viro5467.50%133.33%


Zwane Mwaikambo2430.00%133.33%


Olof Johansson22.50%133.33%


Total80100.00%3100.00%




static const struct ethtool_ops ethtool_ops = {
	.begin = check_if_running,
	.get_drvinfo = smc_get_drvinfo,
	.get_settings = smc_get_settings,
	.set_settings = smc_set_settings,
	.get_link = smc_get_link,
	.nway_reset = smc_nway_reset,
};




static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
{
	struct smc_private *smc = netdev_priv(dev);
	struct mii_ioctl_data *mii = if_mii(rq);
	int rc = 0;
	u16 saved_bank;
	unsigned int ioaddr = dev->base_addr;
	unsigned long flags;

	if (!netif_running(dev))
		return -EINVAL;

	spin_lock_irqsave(&smc->lock, flags);
	saved_bank = inw(ioaddr + BANK_SELECT);
	SMC_SELECT_BANK(3);
	rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
	SMC_SELECT_BANK(saved_bank);
	spin_unlock_irqrestore(&smc->lock, flags);
	return rc;
}


Contributors
PersonTokensPropCommitsCommitProp
Zwane Mwaikambo8162.79%116.67%


Jun Komuro2720.93%116.67%


Ken Kawasaki107.75%116.67%


Al Viro64.65%116.67%


Randy Dunlap32.33%116.67%


Olof Johansson21.55%116.67%


Total129100.00%6100.00%




static const struct pcmcia_device_id smc91c92_ids[] = {
	PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
	PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
	PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
	PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
	PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
	PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
	PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
	PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
	PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
	PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
	PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
	PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
	PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
	PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
	PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
	PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
	PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
	PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
	PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
	PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
	PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
	PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
	PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
	PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
	/* These conflict with other cards! */
	/* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
	/* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
	PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);


static struct pcmcia_driver smc91c92_cs_driver = {
	.owner		= THIS_MODULE,
	.name		= "smc91c92_cs",
	.probe		= smc91c92_probe,
	.remove		= smc91c92_detach,
	.id_table       = smc91c92_ids,
	.suspend	= smc91c92_suspend,
	.resume		= smc91c92_resume,
};

module_pcmcia_driver(smc91c92_cs_driver);

Overall Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)566954.82%87.55%


Dominik Brodowski164715.93%3028.30%


Zwane Mwaikambo7387.14%10.94%


Linus Torvalds6676.45%54.72%


Al Viro2522.44%32.83%


David Hinds2082.01%10.94%


Ken Kawasaki1921.86%43.77%


Jun Komuro1531.48%43.77%


Jaswinder Singh Rajput1271.23%10.94%


Joe Perches1131.09%32.83%


Stephen Hemminger830.80%43.77%


Andrew Morton660.64%54.72%


Olof Johansson620.60%10.94%


Randy Dunlap590.57%10.94%


Daniel Ritz530.51%21.89%


Jiri Pirko450.44%43.77%


Yum Rayan410.40%10.94%


Ben Boeckel400.39%10.94%


Christoph Hellwig260.25%21.89%


Rick Jones160.15%10.94%


Tobias Klauser160.15%10.94%


Vaishali Thakkar80.08%10.94%


Marcelo Feitoza Parisi80.08%10.94%


David Decotigny70.07%21.89%


Russell King70.07%21.89%


Florian Westphal60.06%10.94%


Arnaldo Carvalho de Melo50.05%10.94%


Chuck Ebbert40.04%10.94%


Patrick McHardy40.04%21.89%


Wilfried Klaebe30.03%10.94%


Pradeep A. Dalvi30.03%10.94%


H Hartley Sweeten20.02%10.94%


Arjan van de Ven20.02%10.94%


Magnus Damm20.02%10.94%


Jeff Garzik20.02%10.94%


Celso González10.01%10.94%


Alan Cox10.01%10.94%


Eric Dumazet10.01%10.94%


Andreas Mohr10.01%10.94%


Lucas De Marchi10.01%10.94%


Andy Gospodarek10.01%10.94%


Total10342100.00%106100.00%


Directory: drivers/net/ethernet/smsc



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