smsc95xx.c (42e21c01071b4406341e32aba65e40c7f9b7e973) smsc95xx.c (eb970ff07c15f13eb474f643fd165ebe3e4e24b2)
1 /***************************************************************************
2 *
3 * Copyright (C) 2007-2008 SMSC
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.

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48#define SMSC95XX_INTERNAL_PHY_ID (1)
49#define SMSC95XX_TX_OVERHEAD (8)
50#define SMSC95XX_TX_OVERHEAD_CSUM (12)
51#define SUPPORTED_WAKE (WAKE_PHY | WAKE_UCAST | WAKE_BCAST | \
52 WAKE_MCAST | WAKE_ARP | WAKE_MAGIC)
53
54#define FEATURE_8_WAKEUP_FILTERS (0x01)
55#define FEATURE_PHY_NLP_CROSSOVER (0x02)
1 /***************************************************************************
2 *
3 * Copyright (C) 2007-2008 SMSC
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.

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48#define SMSC95XX_INTERNAL_PHY_ID (1)
49#define SMSC95XX_TX_OVERHEAD (8)
50#define SMSC95XX_TX_OVERHEAD_CSUM (12)
51#define SUPPORTED_WAKE (WAKE_PHY | WAKE_UCAST | WAKE_BCAST | \
52 WAKE_MCAST | WAKE_ARP | WAKE_MAGIC)
53
54#define FEATURE_8_WAKEUP_FILTERS (0x01)
55#define FEATURE_PHY_NLP_CROSSOVER (0x02)
56#define FEATURE_AUTOSUSPEND (0x04)
56#define FEATURE_REMOTE_WAKEUP (0x04)
57
58#define SUSPEND_SUSPEND0 (0x01)
59#define SUSPEND_SUSPEND1 (0x02)
60#define SUSPEND_SUSPEND2 (0x04)
61#define SUSPEND_SUSPEND3 (0x08)
62#define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \
63 SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3)
64

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1141 if (ret < 0)
1142 return ret;
1143 val >>= 16;
1144
1145 if ((val == ID_REV_CHIP_ID_9500A_) || (val == ID_REV_CHIP_ID_9530_) ||
1146 (val == ID_REV_CHIP_ID_89530_) || (val == ID_REV_CHIP_ID_9730_))
1147 pdata->features = (FEATURE_8_WAKEUP_FILTERS |
1148 FEATURE_PHY_NLP_CROSSOVER |
57
58#define SUSPEND_SUSPEND0 (0x01)
59#define SUSPEND_SUSPEND1 (0x02)
60#define SUSPEND_SUSPEND2 (0x04)
61#define SUSPEND_SUSPEND3 (0x08)
62#define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \
63 SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3)
64

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1141 if (ret < 0)
1142 return ret;
1143 val >>= 16;
1144
1145 if ((val == ID_REV_CHIP_ID_9500A_) || (val == ID_REV_CHIP_ID_9530_) ||
1146 (val == ID_REV_CHIP_ID_89530_) || (val == ID_REV_CHIP_ID_9730_))
1147 pdata->features = (FEATURE_8_WAKEUP_FILTERS |
1148 FEATURE_PHY_NLP_CROSSOVER |
1149 FEATURE_AUTOSUSPEND);
1149 FEATURE_REMOTE_WAKEUP);
1150 else if (val == ID_REV_CHIP_ID_9512_)
1151 pdata->features = FEATURE_8_WAKEUP_FILTERS;
1152
1153 dev->net->netdev_ops = &smsc95xx_netdev_ops;
1154 dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
1155 dev->net->flags |= IFF_MULTICAST;
1156 dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD_CSUM;
1157 dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;

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1373 /* interface is ifconfig down so fully power down hw */
1374 netdev_dbg(dev->net, "autosuspend entering SUSPEND2\n");
1375 return smsc95xx_enter_suspend2(dev);
1376 }
1377
1378 if (!link_up) {
1379 /* link is down so enter EDPD mode, but only if device can
1380 * reliably resume from it. This check should be redundant
1150 else if (val == ID_REV_CHIP_ID_9512_)
1151 pdata->features = FEATURE_8_WAKEUP_FILTERS;
1152
1153 dev->net->netdev_ops = &smsc95xx_netdev_ops;
1154 dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
1155 dev->net->flags |= IFF_MULTICAST;
1156 dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD_CSUM;
1157 dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;

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1373 /* interface is ifconfig down so fully power down hw */
1374 netdev_dbg(dev->net, "autosuspend entering SUSPEND2\n");
1375 return smsc95xx_enter_suspend2(dev);
1376 }
1377
1378 if (!link_up) {
1379 /* link is down so enter EDPD mode, but only if device can
1380 * reliably resume from it. This check should be redundant
1381 * as current FEATURE_AUTOSUSPEND parts also support
1381 * as current FEATURE_REMOTE_WAKEUP parts also support
1382 * FEATURE_PHY_NLP_CROSSOVER but it's included for clarity */
1383 if (!(pdata->features & FEATURE_PHY_NLP_CROSSOVER)) {
1384 netdev_warn(dev->net, "EDPD not supported\n");
1385 return -EBUSY;
1386 }
1387
1388 netdev_dbg(dev->net, "autosuspend entering SUSPEND1\n");
1389

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1428 netdev_warn(dev->net, "error during last resume\n");
1429 pdata->suspend_flags = 0;
1430 }
1431
1432 /* determine if link is up using only _nopm functions */
1433 link_up = smsc95xx_link_ok_nopm(dev);
1434
1435 if (message.event == PM_EVENT_AUTO_SUSPEND &&
1382 * FEATURE_PHY_NLP_CROSSOVER but it's included for clarity */
1383 if (!(pdata->features & FEATURE_PHY_NLP_CROSSOVER)) {
1384 netdev_warn(dev->net, "EDPD not supported\n");
1385 return -EBUSY;
1386 }
1387
1388 netdev_dbg(dev->net, "autosuspend entering SUSPEND1\n");
1389

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1428 netdev_warn(dev->net, "error during last resume\n");
1429 pdata->suspend_flags = 0;
1430 }
1431
1432 /* determine if link is up using only _nopm functions */
1433 link_up = smsc95xx_link_ok_nopm(dev);
1434
1435 if (message.event == PM_EVENT_AUTO_SUSPEND &&
1436 (pdata->features & FEATURE_AUTOSUSPEND)) {
1436 (pdata->features & FEATURE_REMOTE_WAKEUP)) {
1437 ret = smsc95xx_autosuspend(dev, link_up);
1438 goto done;
1439 }
1440
1441 /* if we get this far we're not autosuspending */
1442 /* if no wol options set, or if link is down and we're not waking on
1443 * PHY activity, enter lowest power SUSPEND2 mode
1444 */

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1865}
1866
1867static int smsc95xx_manage_power(struct usbnet *dev, int on)
1868{
1869 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
1870
1871 dev->intf->needs_remote_wakeup = on;
1872
1437 ret = smsc95xx_autosuspend(dev, link_up);
1438 goto done;
1439 }
1440
1441 /* if we get this far we're not autosuspending */
1442 /* if no wol options set, or if link is down and we're not waking on
1443 * PHY activity, enter lowest power SUSPEND2 mode
1444 */

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1865}
1866
1867static int smsc95xx_manage_power(struct usbnet *dev, int on)
1868{
1869 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
1870
1871 dev->intf->needs_remote_wakeup = on;
1872
1873 if (pdata->features & FEATURE_AUTOSUSPEND)
1873 if (pdata->features & FEATURE_REMOTE_WAKEUP)
1874 return 0;
1875
1874 return 0;
1875
1876 /* this chip revision doesn't support autosuspend */
1877 netdev_info(dev->net, "hardware doesn't support USB autosuspend\n");
1876 /* this chip revision isn't capable of remote wakeup */
1877 netdev_info(dev->net, "hardware isn't capable of remote wakeup\n");
1878
1879 if (on)
1880 usb_autopm_get_interface_no_resume(dev->intf);
1881 else
1882 usb_autopm_put_interface(dev->intf);
1883
1884 return 0;
1885}

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1879 if (on)
1880 usb_autopm_get_interface_no_resume(dev->intf);
1881 else
1882 usb_autopm_put_interface(dev->intf);
1883
1884 return 0;
1885}

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