ray_cs.c

linux-2.6.15.6

        memcpy_toio(&ptx->var, data + ETH_HLEN,  len - ETH_HLEN);
        return 0 - ETH_HLEN;
    }
    /* TBD do other frame types */
} /* end translate_frame */
/*===========================================================================*/
static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, UCHAR msg_type,
                unsigned char *data)
{
    writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
/*** IEEE 802.11 Address field assignments *************
                TODS FROMDS   addr_1     addr_2          addr_3   addr_4
Adhoc           0    0        dest       src (terminal)  BSSID    N/A
AP to Terminal  0    1        dest       AP(BSSID)       source   N/A
Terminal to AP  1    0        AP(BSSID)  src (terminal)  dest     N/A
AP to AP        1    1        dest AP    src AP          dest     source      
*******************************************************/
    if (local->net_type == ADHOC) {   
        writeb(0, &ptx->mac.frame_ctl_2);
        memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 2 * ADDRLEN);
        memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
    }
    else /* infrastructure */
    {
        if (local->sparm.b4.a_acting_as_ap_status)
        {
            writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
            memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, ADDRLEN);
            memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
            memcpy_toio(ptx->mac.addr_3, ((struct ethhdr *)data)->h_source, ADDRLEN);
        }
        else /* Terminal */
        {
            writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
            memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
            memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source, ADDRLEN);
            memcpy_toio(ptx->mac.addr_3, ((struct ethhdr *)data)->h_dest, ADDRLEN);
        }
    }
} /* end encapsulate_frame */


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

static void netdev_get_drvinfo(struct net_device *dev,
			       struct ethtool_drvinfo *info)
{
	strcpy(info->driver, "ray_cs");
}

static struct ethtool_ops netdev_ethtool_ops = {
	.get_drvinfo		= netdev_get_drvinfo,
};

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

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get protocol name
 */
static int ray_get_name(struct net_device *dev,
			struct iw_request_info *info,
			char *cwrq,
			char *extra)
{
	strcpy(cwrq, "IEEE 802.11-FH");
	return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set frequency
 */
static int ray_set_freq(struct net_device *dev,
			struct iw_request_info *info,
			struct iw_freq *fwrq,
			char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;
	int err = -EINPROGRESS;		/* Call commit handler */

	/* Reject if card is already initialised */
	if(local->card_status != CARD_AWAITING_PARAM)
		return -EBUSY;

	/* Setting by channel number */
	if ((fwrq->m > USA_HOP_MOD) || (fwrq->e > 0))
		err = -EOPNOTSUPP;
	else
		local->sparm.b5.a_hop_pattern = fwrq->m;

	return err;
}
 
/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get frequency
 */
static int ray_get_freq(struct net_device *dev,
			struct iw_request_info *info,
			struct iw_freq *fwrq,
			char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;

	fwrq->m = local->sparm.b5.a_hop_pattern;
	fwrq->e = 0;
	return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set ESSID
 */
static int ray_set_essid(struct net_device *dev,
			 struct iw_request_info *info,
			 struct iw_point *dwrq,
			 char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;

	/* Reject if card is already initialised */
	if(local->card_status != CARD_AWAITING_PARAM)
		return -EBUSY;

	/* Check if we asked for `any' */
	if(dwrq->flags == 0) {
		/* Corey : can you do that ? */
		return -EOPNOTSUPP;
	} else {
		/* Check the size of the string */
		if(dwrq->length > IW_ESSID_MAX_SIZE + 1) {
			return -E2BIG;
		}

		/* Set the ESSID in the card */
		memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
		memcpy(local->sparm.b5.a_current_ess_id, extra, dwrq->length);
	}

	return -EINPROGRESS;		/* Call commit handler */
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get ESSID
 */
static int ray_get_essid(struct net_device *dev,
			 struct iw_request_info *info,
			 struct iw_point *dwrq,
			 char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;

	/* Get the essid that was set */
	memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
	extra[IW_ESSID_MAX_SIZE] = '\0';

	/* Push it out ! */
	dwrq->length = strlen(extra) + 1;
	dwrq->flags = 1; /* active */

	return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get AP address
 */
static int ray_get_wap(struct net_device *dev,
			struct iw_request_info *info,
			struct sockaddr *awrq,
			char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;

	memcpy(awrq->sa_data, local->bss_id, ETH_ALEN);
	awrq->sa_family = ARPHRD_ETHER;

	return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set Bit-Rate
 */
static int ray_set_rate(struct net_device *dev,
			struct iw_request_info *info,
			struct iw_param *vwrq,
			char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;

	/* Reject if card is already initialised */
	if(local->card_status != CARD_AWAITING_PARAM)
		return -EBUSY;

	/* Check if rate is in range */
	if((vwrq->value != 1000000) && (vwrq->value != 2000000))
		return -EINVAL;

	/* Hack for 1.5 Mb/s instead of 2 Mb/s */
	if((local->fw_ver == 0x55) &&		/* Please check */
	   (vwrq->value == 2000000))
		local->net_default_tx_rate = 3;
	else
		local->net_default_tx_rate = vwrq->value/500000;

	return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get Bit-Rate
 */
static int ray_get_rate(struct net_device *dev,
			struct iw_request_info *info,
			struct iw_param *vwrq,
			char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;

	if(local->net_default_tx_rate == 3)
		vwrq->value = 2000000;		/* Hum... */
	else
		vwrq->value = local->net_default_tx_rate * 500000;
	vwrq->fixed = 0;		/* We are in auto mode */

	return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set RTS threshold
 */
static int ray_set_rts(struct net_device *dev,
		       struct iw_request_info *info,
		       struct iw_param *vwrq,
		       char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;
	int rthr = vwrq->value;

	/* Reject if card is already initialised */
	if(local->card_status != CARD_AWAITING_PARAM)
		return -EBUSY;

	/* if(wrq->u.rts.fixed == 0) we should complain */
	if(vwrq->disabled)
		rthr = 32767;
	else {
		if((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
			return -EINVAL;
	}
	local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
	local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;

	return -EINPROGRESS;		/* Call commit handler */
}


/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get RTS threshold
 */
static int ray_get_rts(struct net_device *dev,
		       struct iw_request_info *info,
		       struct iw_param *vwrq,
		       char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;

	vwrq->value = (local->sparm.b5.a_rts_threshold[0] << 8)
		+ local->sparm.b5.a_rts_threshold[1];
	vwrq->disabled = (vwrq->value == 32767);
	vwrq->fixed = 1;

	return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set Fragmentation threshold
 */
static int ray_set_frag(struct net_device *dev,
			struct iw_request_info *info,
			struct iw_param *vwrq,
			char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;
	int fthr = vwrq->value;

	/* Reject if card is already initialised */
	if(local->card_status != CARD_AWAITING_PARAM)
		return -EBUSY;

	/* if(wrq->u.frag.fixed == 0) should complain */
	if(vwrq->disabled)
		fthr = 32767;
	else {
		if((fthr < 256) || (fthr > 2347)) /* To check out ! */
			return -EINVAL;
	}
	local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
	local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;

	return -EINPROGRESS;		/* Call commit handler */
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get Fragmentation threshold
 */
static int ray_get_frag(struct net_device *dev,
			struct iw_request_info *info,
			struct iw_param *vwrq,
			char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;

	vwrq->value = (local->sparm.b5.a_frag_threshold[0] << 8)
		+ local->sparm.b5.a_frag_threshold[1];
	vwrq->disabled = (vwrq->value == 32767);
	vwrq->fixed = 1;

	return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set Mode of Operation
 */
static int ray_set_mode(struct net_device *dev,
			struct iw_request_info *info,
			__u32 *uwrq,
			char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;
	int err = -EINPROGRESS;		/* Call commit handler */
	char card_mode = 1;

	/* Reject if card is already initialised */
	if(local->card_status != CARD_AWAITING_PARAM)
		return -EBUSY;

	switch (*uwrq)
	{
	case IW_MODE_ADHOC:
		card_mode = 0;
		// Fall through
	case IW_MODE_INFRA:
		local->sparm.b5.a_network_type = card_mode;
		break;
	default:
		err = -EINVAL;
	}

	return err;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get Mode of Operation
 */
static int ray_get_mode(struct net_device *dev,
			struct iw_request_info *info,
			__u32 *uwrq,
			char *extra)
{
	ray_dev_t *local = (ray_dev_t *)dev->priv;

	if(local->sparm.b5.a_network_type)
		*uwrq = IW_MODE_INFRA;
	else
		*uwrq = IW_MODE_ADHOC;

	return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get range info