Staging: octeon-ethernet: Convert to use net_device_ops.
[linux-2.6.git] / drivers / staging / octeon / ethernet-sgmii.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.
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16  * NONINFRINGEMENT.  See the GNU General Public License for more
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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_sgmii_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
60         return 0;
61 }
62
63 int cvm_oct_sgmii_stop(struct net_device *dev)
64 {
65         union cvmx_gmxx_prtx_cfg gmx_cfg;
66         struct octeon_ethernet *priv = netdev_priv(dev);
67         int interface = INTERFACE(priv->port);
68         int index = INDEX(priv->port);
69
70         gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
71         gmx_cfg.s.en = 0;
72         cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
73         return 0;
74 }
75
76 static void cvm_oct_sgmii_poll(struct net_device *dev)
77 {
78         struct octeon_ethernet *priv = netdev_priv(dev);
79         cvmx_helper_link_info_t link_info;
80
81         link_info = cvmx_helper_link_get(priv->port);
82         if (link_info.u64 == priv->link_info)
83                 return;
84
85         link_info = cvmx_helper_link_autoconf(priv->port);
86         priv->link_info = link_info.u64;
87
88         /* Tell Linux */
89         if (link_info.s.link_up) {
90
91                 if (!netif_carrier_ok(dev))
92                         netif_carrier_on(dev);
93                 if (priv->queue != -1)
94                         DEBUGPRINT
95                             ("%s: %u Mbps %s duplex, port %2d, queue %2d\n",
96                              dev->name, link_info.s.speed,
97                              (link_info.s.full_duplex) ? "Full" : "Half",
98                              priv->port, priv->queue);
99                 else
100                         DEBUGPRINT("%s: %u Mbps %s duplex, port %2d, POW\n",
101                                    dev->name, link_info.s.speed,
102                                    (link_info.s.full_duplex) ? "Full" : "Half",
103                                    priv->port);
104         } else {
105                 if (netif_carrier_ok(dev))
106                         netif_carrier_off(dev);
107                 DEBUGPRINT("%s: Link down\n", dev->name);
108         }
109 }
110
111 int cvm_oct_sgmii_init(struct net_device *dev)
112 {
113         struct octeon_ethernet *priv = netdev_priv(dev);
114         cvm_oct_common_init(dev);
115         dev->netdev_ops->ndo_stop(dev);
116         if (!octeon_is_simulation())
117                 priv->poll = cvm_oct_sgmii_poll;
118
119         /* FIXME: Need autoneg logic */
120         return 0;
121 }
122
123 void cvm_oct_sgmii_uninit(struct net_device *dev)
124 {
125         cvm_oct_common_uninit(dev);
126 }