Release 4.16 drivers/net/usb/asix_common.c

/*
 * ASIX AX8817X based USB 2.0 Ethernet Devices
 * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
 * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
 * Copyright (c) 2002-2003 TiVo Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#include "asix.h"



int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
		  u16 size, void *data, int in_pm)
{
	int ret;
	int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);

	BUG_ON(!dev);

	if (!in_pm)
		fn = usbnet_read_cmd;
	else
		fn = usbnet_read_cmd_nopm;

	ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
		 value, index, data, size);

	if (unlikely(ret < 0))
		netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
			    index, ret);

	return ret;
}

Contributors
Person
Tokens
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Commits
CommitProp
Robert Foss
65
52.42%
1
20.00%
Christian Riesch
38
30.65%
1
20.00%
Grant Grundler
11
8.87%
1
20.00%
David T. Hollis
6
4.84%
1
20.00%
Ming Lei
4
3.23%
1
20.00%
Total
124
100.00%
5
100.00%



int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
		   u16 size, void *data, int in_pm)
{
	int ret;
	int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);

	BUG_ON(!dev);

	if (!in_pm)
		fn = usbnet_write_cmd;
	else
		fn = usbnet_write_cmd_nopm;

	ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
		 value, index, data, size);

	if (unlikely(ret < 0))
		netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
			    index, ret);

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Robert Foss
78
62.40%
1
20.00%
Christian Riesch
42
33.60%
1
20.00%
Grant Grundler
2
1.60%
1
20.00%
Ming Lei
2
1.60%
1
20.00%
David T. Hollis
1
0.80%
1
20.00%
Total
125
100.00%
5
100.00%



void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
			  u16 size, void *data)
{
	usbnet_write_cmd_async(dev, cmd,
			       USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			       value, index, data, size);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
31
65.96%
1
25.00%
David T. Hollis
8
17.02%
1
25.00%
Grant Grundler
5
10.64%
1
25.00%
Ming Lei
3
6.38%
1
25.00%
Total
47
100.00%
4
100.00%



static void reset_asix_rx_fixup_info(struct asix_rx_fixup_info *rx)
{
	/* Reset the variables that have a lifetime outside of
         * asix_rx_fixup_internal() so that future processing starts from a
         * known set of initial conditions.
         */

	if (rx->ax_skb) {
		/* Discard any incomplete Ethernet frame in the netdev buffer */
		kfree_skb(rx->ax_skb);
		rx->ax_skb = NULL;
	}

	/* Assume the Data header 32-bit word is at the start of the current
         * or next URB socket buffer so reset all the state variables.
         */
	rx->remaining = 0;
	rx->split_head = false;
	rx->header = 0;
}

Contributors
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Dean Jenkins
53
100.00%
1
100.00%
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53
100.00%
1
100.00%



int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
			   struct asix_rx_fixup_info *rx)
{
	int offset = 0;
	u16 size;

	/* When an Ethernet frame spans multiple URB socket buffers,
         * do a sanity test for the Data header synchronisation.
         * Attempt to detect the situation of the previous socket buffer having
         * been truncated or a socket buffer was missing. These situations
         * cause a discontinuity in the data stream and therefore need to avoid
         * appending bad data to the end of the current netdev socket buffer.
         * Also avoid unnecessarily discarding a good current netdev socket
         * buffer.
         */
	if (rx->remaining && (rx->remaining + sizeof(u32) <= skb->len)) {
		offset = ((rx->remaining + 1) & 0xfffe);
		rx->header = get_unaligned_le32(skb->data + offset);
		offset = 0;

		size = (u16)(rx->header & 0x7ff);
		if (size != ((~rx->header >> 16) & 0x7ff)) {
			netdev_err(dev->net, "asix_rx_fixup() Data Header synchronisation was lost, remaining %d\n",
				   rx->remaining);
			reset_asix_rx_fixup_info(rx);
		}
	}

	while (offset + sizeof(u16) <= skb->len) {
		u16 copy_length;

		if (!rx->remaining) {
			if (skb->len - offset == sizeof(u16)) {
				rx->header = get_unaligned_le16(
						skb->data + offset);
				rx->split_head = true;
				offset += sizeof(u16);
				break;
			}

			if (rx->split_head == true) {
				rx->header |= (get_unaligned_le16(
						skb->data + offset) << 16);
				rx->split_head = false;
				offset += sizeof(u16);
			} else {
				rx->header = get_unaligned_le32(skb->data +
								offset);
				offset += sizeof(u32);
			}

			/* take frame length from Data header 32-bit word */
			size = (u16)(rx->header & 0x7ff);
			if (size != ((~rx->header >> 16) & 0x7ff)) {
				netdev_err(dev->net, "asix_rx_fixup() Bad Header Length 0x%x, offset %d\n",
					   rx->header, offset);
				reset_asix_rx_fixup_info(rx);
				return 0;
			}
			if (size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) {
				netdev_dbg(dev->net, "asix_rx_fixup() Bad RX Length %d\n",
					   size);
				reset_asix_rx_fixup_info(rx);
				return 0;
			}

			/* Sometimes may fail to get a netdev socket buffer but
                         * continue to process the URB socket buffer so that
                         * synchronisation of the Ethernet frame Data header
                         * word is maintained.
                         */
			rx->ax_skb = netdev_alloc_skb_ip_align(dev->net, size);

			rx->remaining = size;
		}

		if (rx->remaining > skb->len - offset) {
			copy_length = skb->len - offset;
			rx->remaining -= copy_length;
		} else {
			copy_length = rx->remaining;
			rx->remaining = 0;
		}

		if (rx->ax_skb) {
			skb_put_data(rx->ax_skb, skb->data + offset,
				     copy_length);
			if (!rx->remaining) {
				usbnet_skb_return(dev, rx->ax_skb);
				rx->ax_skb = NULL;
			}
		}

		offset += (copy_length + 1) & 0xfffe;
	}

	if (skb->len != offset) {
		netdev_err(dev->net, "asix_rx_fixup() Bad SKB Length %d, %d\n",
			   skb->len, offset);
		reset_asix_rx_fixup_info(rx);
		return 0;
	}

	return 1;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Dean Jenkins
189
36.91%
7
46.67%
Lucas Stach
150
29.30%
1
6.67%
Christian Riesch
127
24.80%
1
6.67%
David T. Hollis
29
5.66%
1
6.67%
David Brownell
9
1.76%
1
6.67%
Holger Eitzenberger
4
0.78%
1
6.67%
Joe Perches
2
0.39%
1
6.67%
Stephen Hemminger
1
0.20%
1
6.67%
Johannes Berg
1
0.20%
1
6.67%
Total
512
100.00%
15
100.00%



int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb)
{
	struct asix_common_private *dp = dev->driver_priv;
	struct asix_rx_fixup_info *rx = &dp->rx_fixup_info;

	return asix_rx_fixup_internal(dev, skb, rx);
}

Contributors
Person
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CommitProp
Lucas Stach
44
100.00%
1
100.00%
Total
44
100.00%
1
100.00%



void asix_rx_fixup_common_free(struct asix_common_private *dp)
{
	struct asix_rx_fixup_info *rx;

	if (!dp)
		return;

	rx = &dp->rx_fixup_info;

	if (rx->ax_skb) {
		kfree_skb(rx->ax_skb);
		rx->ax_skb = NULL;
	}
}

Contributors
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CommitProp
Dean Jenkins
49
100.00%
1
100.00%
Total
49
100.00%
1
100.00%



struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
			      gfp_t flags)
{
	int padlen;
	int headroom = skb_headroom(skb);
	int tailroom = skb_tailroom(skb);
	u32 packet_len;
	u32 padbytes = 0xffff0000;

	padlen = ((skb->len + 4) & (dev->maxpacket - 1)) ? 0 : 4;

	/* We need to push 4 bytes in front of frame (packet_len)
         * and maybe add 4 bytes after the end (if padlen is 4)
         *
         * Avoid skb_copy_expand() expensive call, using following rules :
         * - We are allowed to push 4 bytes in headroom if skb_header_cloned()
         *   is false (and if we have 4 bytes of headroom)
         * - We are allowed to put 4 bytes at tail if skb_cloned()
         *   is false (and if we have 4 bytes of tailroom)
         *
         * TCP packets for example are cloned, but __skb_header_release()
         * was called in tcp stack, allowing us to use headroom for our needs.
         */
	if (!skb_header_cloned(skb) &&
	    !(padlen && skb_cloned(skb)) &&
	    headroom + tailroom >= 4 + padlen) {
		/* following should not happen, but better be safe */
		if (headroom < 4 ||
		    tailroom < padlen) {
			skb->data = memmove(skb->head + 4, skb->data, skb->len);
			skb_set_tail_pointer(skb, skb->len);
		}
	} else {
		struct sk_buff *skb2;

		skb2 = skb_copy_expand(skb, 4, padlen, flags);
		dev_kfree_skb_any(skb);
		skb = skb2;
		if (!skb)
			return NULL;
	}

	packet_len = ((skb->len ^ 0x0000ffff) << 16) + skb->len;
	skb_push(skb, 4);
	cpu_to_le32s(&packet_len);
	skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len));

	if (padlen) {
		cpu_to_le32s(&padbytes);
		memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes));
		skb_put(skb, sizeof(padbytes));
	}

	usbnet_set_skb_tx_stats(skb, 1, 0);
	return skb;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
187
68.00%
1
11.11%
Grant Grundler
52
18.91%
2
22.22%
David T. Hollis
13
4.73%
1
11.11%
David Brownell
12
4.36%
1
11.11%
Ben Hutchings
9
3.27%
2
22.22%
Gao Feng
1
0.36%
1
11.11%
David Decotigny
1
0.36%
1
11.11%
Total
275
100.00%
9
100.00%



int asix_set_sw_mii(struct usbnet *dev, int in_pm)
{
	int ret;
	ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL, in_pm);

	if (ret < 0)
		netdev_err(dev->net, "Failed to enable software MII access\n");
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
27
50.94%
1
16.67%
Grant Grundler
14
26.42%
2
33.33%
David Brownell
6
11.32%
1
16.67%
Robert Foss
5
9.43%
1
16.67%
David T. Hollis
1
1.89%
1
16.67%
Total
53
100.00%
6
100.00%



int asix_set_hw_mii(struct usbnet *dev, int in_pm)
{
	int ret;
	ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL, in_pm);
	if (ret < 0)
		netdev_err(dev->net, "Failed to enable hardware MII access\n");
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
33
62.26%
1
20.00%
Grant Grundler
11
20.75%
1
20.00%
Robert Foss
5
9.43%
1
20.00%
David T. Hollis
3
5.66%
1
20.00%
David Brownell
1
1.89%
1
20.00%
Total
53
100.00%
5
100.00%



int asix_read_phy_addr(struct usbnet *dev, int internal)
{
	int offset = (internal ? 1 : 0);
	u8 buf[2];
	int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf, 0);

	netdev_dbg(dev->net, "asix_get_phy_addr()\n");

	if (ret < 0) {
		netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret);
		goto out;
	}
	netdev_dbg(dev->net, "asix_get_phy_addr() returning 0x%04x\n",
		   *((__le16 *)buf));
	ret = buf[offset];

out:
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
80
72.07%
2
25.00%
Grant Grundler
12
10.81%
2
25.00%
Jussi Kivilinna
11
9.91%
1
12.50%
David Brownell
4
3.60%
1
12.50%
Robert Foss
2
1.80%
1
12.50%
David T. Hollis
2
1.80%
1
12.50%
Total
111
100.00%
8
100.00%



int asix_get_phy_addr(struct usbnet *dev)
{
	/* return the address of the internal phy */
	return asix_read_phy_addr(dev, 1);
}


Contributors
Person
Tokens
Prop
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CommitProp
Christian Riesch
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%



int asix_sw_reset(struct usbnet *dev, u8 flags, int in_pm)
{
	int ret;

	ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL, in_pm);
	if (ret < 0)
		netdev_err(dev->net, "Failed to send software reset: %02x\n", ret);

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
27
46.55%
1
14.29%
Jussi Kivilinna
17
29.31%
1
14.29%
Robert Foss
5
8.62%
1
14.29%
Grant Grundler
4
6.90%
2
28.57%
David Brownell
4
6.90%
1
14.29%
David T. Hollis
1
1.72%
1
14.29%
Total
58
100.00%
7
100.00%



u16 asix_read_rx_ctl(struct usbnet *dev, int in_pm)
{
	__le16 v;
	int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v, in_pm);

	if (ret < 0) {
		netdev_err(dev->net, "Error reading RX_CTL register: %02x\n", ret);
		goto out;
	}
	ret = le16_to_cpu(v);
out:
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
41
57.75%
1
20.00%
David Brownell
17
23.94%
1
20.00%
Robert Foss
5
7.04%
1
20.00%
Grant Grundler
4
5.63%
1
20.00%
David T. Hollis
4
5.63%
1
20.00%
Total
71
100.00%
5
100.00%



int asix_write_rx_ctl(struct usbnet *dev, u16 mode, int in_pm)
{
	int ret;

	netdev_dbg(dev->net, "asix_write_rx_ctl() - mode = 0x%04x\n", mode);
	ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL, in_pm);
	if (ret < 0)
		netdev_err(dev->net, "Failed to write RX_CTL mode to 0x%04x: %02x\n",
			   mode, ret);

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
38
53.52%
1
20.00%
Grant Grundler
13
18.31%
1
20.00%
David Brownell
9
12.68%
1
20.00%
David T. Hollis
6
8.45%
1
20.00%
Robert Foss
5
7.04%
1
20.00%
Total
71
100.00%
5
100.00%



u16 asix_read_medium_status(struct usbnet *dev, int in_pm)
{
	__le16 v;
	int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS,
				0, 0, 2, &v, in_pm);

	if (ret < 0) {
		netdev_err(dev->net, "Error reading Medium Status register: %02x\n",
			   ret);
		return ret;	/* TODO: callers not checking for error ret */
	}

	return le16_to_cpu(v);

}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
34
51.52%
1
20.00%
Grant Grundler
19
28.79%
1
20.00%
Robert Foss
5
7.58%
1
20.00%
David Brownell
4
6.06%
1
20.00%
David T. Hollis
4
6.06%
1
20.00%
Total
66
100.00%
5
100.00%



int asix_write_medium_mode(struct usbnet *dev, u16 mode, int in_pm)
{
	int ret;

	netdev_dbg(dev->net, "asix_write_medium_mode() - mode = 0x%04x\n", mode);
	ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE,
			     mode, 0, 0, NULL, in_pm);
	if (ret < 0)
		netdev_err(dev->net, "Failed to write Medium Mode mode to 0x%04x: %02x\n",
			   mode, ret);

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
38
53.52%
1
20.00%
Grant Grundler
16
22.54%
1
20.00%
David Brownell
8
11.27%
1
20.00%
Robert Foss
5
7.04%
1
20.00%
David T. Hollis
4
5.63%
1
20.00%
Total
71
100.00%
5
100.00%



int asix_write_gpio(struct usbnet *dev, u16 value, int sleep, int in_pm)
{
	int ret;

	netdev_dbg(dev->net, "asix_write_gpio() - value = 0x%04x\n", value);
	ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL, in_pm);
	if (ret < 0)
		netdev_err(dev->net, "Failed to write GPIO value 0x%04x: %02x\n",
			   value, ret);

	if (sleep)
		msleep(sleep);

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
34
40.96%
1
16.67%
David T. Hollis
21
25.30%
1
16.67%
Grant Grundler
18
21.69%
2
33.33%
Robert Foss
5
6.02%
1
16.67%
David Brownell
5
6.02%
1
16.67%
Total
83
100.00%
6
100.00%

/*
 * AX88772 & AX88178 have a 16-bit RX_CTL value
 */


void asix_set_multicast(struct net_device *net)
{
	struct usbnet *dev = netdev_priv(net);
	struct asix_data *data = (struct asix_data *)&dev->data;
	u16 rx_ctl = AX_DEFAULT_RX_CTL;

	if (net->flags & IFF_PROMISC) {
		rx_ctl |= AX_RX_CTL_PRO;
	} else if (net->flags & IFF_ALLMULTI ||
		   netdev_mc_count(net) > AX_MAX_MCAST) {
		rx_ctl |= AX_RX_CTL_AMALL;
	} else if (netdev_mc_empty(net)) {
		/* just broadcast and directed */
	} else {
		/* We use the 20 byte dev->data
                 * for our 8 byte filter buffer
                 * to avoid allocating memory that
                 * is tricky to free later */
		struct netdev_hw_addr *ha;
		u32 crc_bits;

		memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);

		/* Build the multicast hash filter. */
		netdev_for_each_mc_addr(ha, net) {
			crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
			data->multi_filter[crc_bits >> 3] |=
			    1 << (crc_bits & 7);
		}

		asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
				   AX_MCAST_FILTER_SIZE, data->multi_filter);

		rx_ctl |= AX_RX_CTL_AM;
	}

	asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
153
82.70%
1
20.00%
David T. Hollis
17
9.19%
1
20.00%
David Brownell
11
5.95%
1
20.00%
Grant Grundler
4
2.16%
2
40.00%
Total
185
100.00%
5
100.00%



int asix_mdio_read(struct net_device *netdev, int phy_id, int loc)
{
	struct usbnet *dev = netdev_priv(netdev);
	__le16 res;
	u8 smsr;
	int i = 0;
	int ret;

	mutex_lock(&dev->phy_mutex);
	do {
		ret = asix_set_sw_mii(dev, 0);
		if (ret == -ENODEV || ret == -ETIMEDOUT)
			break;
		usleep_range(1000, 1100);
		ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG,
				    0, 0, 1, &smsr, 0);
	} while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV));
	if (ret == -ENODEV || ret == -ETIMEDOUT) {
		mutex_unlock(&dev->phy_mutex);
		return ret;
	}

	asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
				(__u16)loc, 2, &res, 0);
	asix_set_hw_mii(dev, 0);
	mutex_unlock(&dev->phy_mutex);

	netdev_dbg(dev->net, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
			phy_id, loc, le16_to_cpu(res));

	return le16_to_cpu(res);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Robert Foss
101
48.33%
2
33.33%
Christian Riesch
75
35.89%
1
16.67%
David Brownell
22
10.53%
1
16.67%
Guenter Roeck
10
4.78%
1
16.67%
David T. Hollis
1
0.48%
1
16.67%
Total
209
100.00%
6
100.00%



void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
{
	struct usbnet *dev = netdev_priv(netdev);
	__le16 res = cpu_to_le16(val);
	u8 smsr;
	int i = 0;
	int ret;

	netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
			phy_id, loc, val);

	mutex_lock(&dev->phy_mutex);
	do {
		ret = asix_set_sw_mii(dev, 0);
		if (ret == -ENODEV)
			break;
		usleep_range(1000, 1100);
		ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG,
				    0, 0, 1, &smsr, 0);
	} while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV));
	if (ret == -ENODEV) {
		mutex_unlock(&dev->phy_mutex);
		return;
	}

	asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id,
		       (__u16)loc, 2, &res, 0);
	asix_set_hw_mii(dev, 0);
	mutex_unlock(&dev->phy_mutex);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Robert Foss
99
50.51%
2
33.33%
Christian Riesch
78
39.80%
1
16.67%
David Brownell
10
5.10%
1
16.67%
Joerg Neikes
5
2.55%
1
16.67%
Mattia Dongili
4
2.04%
1
16.67%
Total
196
100.00%
6
100.00%



int asix_mdio_read_nopm(struct net_device *netdev, int phy_id, int loc)
{
	struct usbnet *dev = netdev_priv(netdev);
	__le16 res;
	u8 smsr;
	int i = 0;
	int ret;

	mutex_lock(&dev->phy_mutex);
	do {
		ret = asix_set_sw_mii(dev, 1);
		if (ret == -ENODEV || ret == -ETIMEDOUT)
			break;
		usleep_range(1000, 1100);
		ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG,
				    0, 0, 1, &smsr, 1);
	} while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV));
	if (ret == -ENODEV || ret == -ETIMEDOUT) {
		mutex_unlock(&dev->phy_mutex);
		return ret;
	}

	asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
		      (__u16)loc, 2, &res, 1);
	asix_set_hw_mii(dev, 1);
	mutex_unlock(&dev->phy_mutex);

	netdev_dbg(dev->net, "asix_mdio_read_nopm() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
			phy_id, loc, le16_to_cpu(res));

	return le16_to_cpu(res);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Robert Foss
194
92.82%
2
50.00%
Guenter Roeck
10
4.78%
1
25.00%
Christian Riesch
5
2.39%
1
25.00%
Total
209
100.00%
4
100.00%


void

asix_mdio_write_nopm(struct net_device *netdev, int phy_id, int loc, int val)
{
	struct usbnet *dev = netdev_priv(netdev);
	__le16 res = cpu_to_le16(val);
	u8 smsr;
	int i = 0;
	int ret;

	netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
			phy_id, loc, val);

	mutex_lock(&dev->phy_mutex);
	do {
		ret = asix_set_sw_mii(dev, 1);
		if (ret == -ENODEV)
			break;
		usleep_range(1000, 1100);
		ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG,
				    0, 0, 1, &smsr, 1);
	} while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV));
	if (ret == -ENODEV) {
		mutex_unlock(&dev->phy_mutex);
		return;
	}

	asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id,
		       (__u16)loc, 2, &res, 1);
	asix_set_hw_mii(dev, 1);
	mutex_unlock(&dev->phy_mutex);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Robert Foss
196
100.00%
2
100.00%
Total
196
100.00%
2
100.00%



void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
{
	struct usbnet *dev = netdev_priv(net);
	u8 opt;

	if (asix_read_cmd(dev, AX_CMD_READ_MONITOR_MODE,
			  0, 0, 1, &opt, 0) < 0) {
		wolinfo->supported = 0;
		wolinfo->wolopts = 0;
		return;
	}
	wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
	wolinfo->wolopts = 0;
	if (opt & AX_MONITOR_LINK)
		wolinfo->wolopts |= WAKE_PHY;
	if (opt & AX_MONITOR_MAGIC)
		wolinfo->wolopts |= WAKE_MAGIC;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
80
77.67%
1
33.33%
Robert Foss
15
14.56%
1
33.33%
David Brownell
8
7.77%
1
33.33%
Total
103
100.00%
3
100.00%



int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
{
	struct usbnet *dev = netdev_priv(net);
	u8 opt = 0;

	if (wolinfo->wolopts & WAKE_PHY)
		opt |= AX_MONITOR_LINK;
	if (wolinfo->wolopts & WAKE_MAGIC)
		opt |= AX_MONITOR_MAGIC;

	if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
			      opt, 0, 0, NULL, 0) < 0)
		return -EINVAL;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
68
82.93%
1
11.11%
David T. Hollis
7
8.54%
3
33.33%
David Brownell
2
2.44%
1
11.11%
Robert Foss
2
2.44%
1
11.11%
Marek Vašut
1
1.22%
1
11.11%
Arnaud Ebalard
1
1.22%
1
11.11%
Eduard Warkentin
1
1.22%
1
11.11%
Total
82
100.00%
9
100.00%



int asix_get_eeprom_len(struct net_device *net)
{
	return AX_EEPROM_LEN;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
12
92.31%
2
66.67%
David T. Hollis
1
7.69%
1
33.33%
Total
13
100.00%
3
100.00%



int asix_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
		    u8 *data)
{
	struct usbnet *dev = netdev_priv(net);
	u16 *eeprom_buff;
	int first_word, last_word;
	int i;

	if (eeprom->len == 0)
		return -EINVAL;

	eeprom->magic = AX_EEPROM_MAGIC;

	first_word = eeprom->offset >> 1;
	last_word = (eeprom->offset + eeprom->len - 1) >> 1;

	eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
			      GFP_KERNEL);
	if (!eeprom_buff)
		return -ENOMEM;

	/* ax8817x returns 2 bytes from eeprom on read */
	for (i = first_word; i <= last_word; i++) {
		if (asix_read_cmd(dev, AX_CMD_READ_EEPROM, i, 0, 2,
				  &eeprom_buff[i - first_word], 0) < 0) {
			kfree(eeprom_buff);
			return -EIO;
		}
	}

	memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
	kfree(eeprom_buff);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
186
94.42%
2
28.57%
David T. Hollis
8
4.06%
3
42.86%
Robert Foss
2
1.02%
1
14.29%
Hideaki Yoshifuji / 吉藤英明
1
0.51%
1
14.29%
Total
197
100.00%
7
100.00%



int asix_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
		    u8 *data)
{
	struct usbnet *dev = netdev_priv(net);
	u16 *eeprom_buff;
	int first_word, last_word;
	int i;
	int ret;

	netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n",
		   eeprom->len, eeprom->offset, eeprom->magic);

	if (eeprom->len == 0)
		return -EINVAL;

	if (eeprom->magic != AX_EEPROM_MAGIC)
		return -EINVAL;

	first_word = eeprom->offset >> 1;
	last_word = (eeprom->offset + eeprom->len - 1) >> 1;

	eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
			      GFP_KERNEL);
	if (!eeprom_buff)
		return -ENOMEM;

	/* align data to 16 bit boundaries, read the missing data from
           the EEPROM */
	if (eeprom->offset & 1) {
		ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, first_word, 0, 2,
				    &eeprom_buff[0], 0);
		if (ret < 0) {
			netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word);
			goto free;
		}
	}

	if ((eeprom->offset + eeprom->len) & 1) {
		ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, last_word, 0, 2,
				    &eeprom_buff[last_word - first_word], 0);
		if (ret < 0) {
			netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word);
			goto free;
		}
	}

	memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len);

	/* write data to EEPROM */
	ret = asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0x0000, 0, 0, NULL, 0);
	if (ret < 0) {
		netdev_err(net, "Failed to enable EEPROM write\n");
		goto free;
	}
	msleep(20);

	for (i = first_word; i <= last_word; i++) {
		netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n",
			   i, eeprom_buff[i - first_word]);
		ret = asix_write_cmd(dev, AX_CMD_WRITE_EEPROM, i,
				     eeprom_buff[i - first_word], 0, NULL, 0);
		if (ret < 0) {
			netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n",
				   i);
			goto free;
		}
		msleep(20);
	}

	ret = asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0x0000, 0, 0, NULL, 0);
	if (ret < 0) {
		netdev_err(net, "Failed to disable EEPROM write\n");
		goto free;
	}

	ret = 0;
free:
	kfree(eeprom_buff);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
442
97.79%
1
50.00%
Robert Foss
10
2.21%
1
50.00%
Total
452
100.00%
2
100.00%



void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
{
	/* Inherit standard device info */
	usbnet_get_drvinfo(net, info);
	strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver));
	strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
39
70.91%
1
20.00%
Greg Kroah-Hartman
6
10.91%
1
20.00%
Jiri Pirko
6
10.91%
1
20.00%
Jason Cooper
3
5.45%
1
20.00%
Aurelien Nephtali
1
1.82%
1
20.00%
Total
55
100.00%
5
100.00%



int asix_set_mac_address(struct net_device *net, void *p)
{
	struct usbnet *dev = netdev_priv(net);
	struct asix_data *data = (struct asix_data *)&dev->data;
	struct sockaddr *addr = p;

	if (netif_running(net))
		return -EBUSY;
	if (!is_valid_ether_addr(addr->sa_data))
		return -EADDRNOTAVAIL;

	memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);

	/* We use the 20 byte dev->data
         * for our 6 byte mac buffer
         * to avoid allocating memory that
         * is tricky to free later */
	memcpy(data->mac_addr, addr->sa_data, ETH_ALEN);
	asix_write_cmd_async(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
							data->mac_addr);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
95
80.51%
1
25.00%
David Brownell
14
11.86%
1
25.00%
Aurelien Jacobs
6
5.08%
1
25.00%
Grant Grundler
3
2.54%
1
25.00%
Total
118
100.00%
4
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Christian Riesch
2033
52.06%
4
8.00%
Robert Foss
804
20.59%
2
4.00%
Dean Jenkins
291
7.45%
8
16.00%
Lucas Stach
194
4.97%
1
2.00%
Grant Grundler
188
4.81%
5
10.00%
David Brownell
146
3.74%
1
2.00%
David T. Hollis
137
3.51%
6
12.00%
Jussi Kivilinna
28
0.72%
1
2.00%
Guenter Roeck
20
0.51%
1
2.00%
Ming Lei
9
0.23%
1
2.00%
Ben Hutchings
9
0.23%
2
4.00%
Greg Kroah-Hartman
6
0.15%
1
2.00%
Aurelien Jacobs
6
0.15%
1
2.00%
Jiri Pirko
6
0.15%
1
2.00%
Joerg Neikes
5
0.13%
1
2.00%
Mattia Dongili
4
0.10%
1
2.00%
Holger Eitzenberger
4
0.10%
1
2.00%
Jason Cooper
3
0.08%
1
2.00%
Joe Perches
2
0.05%
1
2.00%
Jeff Kirsher
1
0.03%
1
2.00%
Stephen Hemminger
1
0.03%
1
2.00%
Hideaki Yoshifuji / 吉藤英明
1
0.03%
1
2.00%
Eduard Warkentin
1
0.03%
1
2.00%
Aurelien Nephtali
1
0.03%
1
2.00%
Arnaud Ebalard
1
0.03%
1
2.00%
Marek Vašut
1
0.03%
1
2.00%
Gao Feng
1
0.03%
1
2.00%
Johannes Berg
1
0.03%
1
2.00%
David Decotigny
1
0.03%
1
2.00%
Total
3905
100.00%
50
100.00%
Directory: drivers/net/usb

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