Staging: octeon-ethernet: Convert to use net_device_ops.
[linux-2.6.git] / drivers / staging / octeon / ethernet-xaui.c
1 /**********************************************************************
2  * Author: Cavium Networks
3  *
4  * Contact: support@caviumnetworks.com
5  * This file is part of the OCTEON SDK
6  *
7  * Copyright (c) 2003-2007 Cavium Networks
8  *
9  * This file is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License, Version 2, as
11  * published by the Free Software Foundation.
12  *
13  * This file is distributed in the hope that it will be useful, but
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15  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
16  * NONINFRINGEMENT.  See the GNU General Public License for more
17  * details.
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22  * or visit http://www.gnu.org/licenses/.
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24  * This file may also be available under a different license from Cavium.
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26 **********************************************************************/
27 #include <linux/kernel.h>
28 #include <linux/netdevice.h>
29 #include <linux/mii.h>
30 #include <net/dst.h>
31
32 #include <asm/octeon/octeon.h>
33
34 #include "ethernet-defines.h"
35 #include "octeon-ethernet.h"
36 #include "ethernet-util.h"
37
38 #include "cvmx-helper.h"
39
40 #include "cvmx-gmxx-defs.h"
41
42 int cvm_oct_xaui_open(struct net_device *dev)
43 {
44         union cvmx_gmxx_prtx_cfg gmx_cfg;
45         struct octeon_ethernet *priv = netdev_priv(dev);
46         int interface = INTERFACE(priv->port);
47         int index = INDEX(priv->port);
48         cvmx_helper_link_info_t link_info;
49
50         gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
51         gmx_cfg.s.en = 1;
52         cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
53
54         if (!octeon_is_simulation()) {
55                 link_info = cvmx_helper_link_get(priv->port);
56                 if (!link_info.s.link_up)
57                         netif_carrier_off(dev);
58         }
59         return 0;
60 }
61
62 int cvm_oct_xaui_stop(struct net_device *dev)
63 {
64         union cvmx_gmxx_prtx_cfg gmx_cfg;
65         struct octeon_ethernet *priv = netdev_priv(dev);
66         int interface = INTERFACE(priv->port);
67         int index = INDEX(priv->port);
68
69         gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
70         gmx_cfg.s.en = 0;
71         cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
72         return 0;
73 }
74
75 static void cvm_oct_xaui_poll(struct net_device *dev)
76 {
77         struct octeon_ethernet *priv = netdev_priv(dev);
78         cvmx_helper_link_info_t link_info;
79
80         link_info = cvmx_helper_link_get(priv->port);
81         if (link_info.u64 == priv->link_info)
82                 return;
83
84         link_info = cvmx_helper_link_autoconf(priv->port);
85         priv->link_info = link_info.u64;
86
87         /* Tell Linux */
88         if (link_info.s.link_up) {
89
90                 if (!netif_carrier_ok(dev))
91                         netif_carrier_on(dev);
92                 if (priv->queue != -1)
93                         DEBUGPRINT
94                             ("%s: %u Mbps %s duplex, port %2d, queue %2d\n",
95                              dev->name, link_info.s.speed,
96                              (link_info.s.full_duplex) ? "Full" : "Half",
97                              priv->port, priv->queue);
98                 else
99                         DEBUGPRINT("%s: %u Mbps %s duplex, port %2d, POW\n",
100                                    dev->name, link_info.s.speed,
101                                    (link_info.s.full_duplex) ? "Full" : "Half",
102                                    priv->port);
103         } else {
104                 if (netif_carrier_ok(dev))
105                         netif_carrier_off(dev);
106                 DEBUGPRINT("%s: Link down\n", dev->name);
107         }
108 }
109
110 int cvm_oct_xaui_init(struct net_device *dev)
111 {
112         struct octeon_ethernet *priv = netdev_priv(dev);
113         cvm_oct_common_init(dev);
114         dev->netdev_ops->ndo_stop(dev);
115         if (!octeon_is_simulation())
116                 priv->poll = cvm_oct_xaui_poll;
117
118         return 0;
119 }
120
121 void cvm_oct_xaui_uninit(struct net_device *dev)
122 {
123         cvm_oct_common_uninit(dev);
124 }