1 /*
2  * Copyright (c) 2012 Qualcomm Atheros, Inc.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <linux/etherdevice.h>
18 
19 #include "wil6210.h"
20 
21 static int wil_open(struct net_device *ndev)
22 {
23 	struct wil6210_priv *wil = ndev_to_wil(ndev);
24 
25 	return wil_up(wil);
26 }
27 
28 static int wil_stop(struct net_device *ndev)
29 {
30 	struct wil6210_priv *wil = ndev_to_wil(ndev);
31 
32 	return wil_down(wil);
33 }
34 
35 static const struct net_device_ops wil_netdev_ops = {
36 	.ndo_open		= wil_open,
37 	.ndo_stop		= wil_stop,
38 	.ndo_start_xmit		= wil_start_xmit,
39 	.ndo_set_mac_address	= eth_mac_addr,
40 	.ndo_validate_addr	= eth_validate_addr,
41 };
42 
43 void *wil_if_alloc(struct device *dev, void __iomem *csr)
44 {
45 	struct net_device *ndev;
46 	struct wireless_dev *wdev;
47 	struct wil6210_priv *wil;
48 	struct ieee80211_channel *ch;
49 	int rc = 0;
50 
51 	wdev = wil_cfg80211_init(dev);
52 	if (IS_ERR(wdev)) {
53 		dev_err(dev, "wil_cfg80211_init failed\n");
54 		return wdev;
55 	}
56 
57 	wil = wdev_to_wil(wdev);
58 	wil->csr = csr;
59 	wil->wdev = wdev;
60 
61 	rc = wil_priv_init(wil);
62 	if (rc) {
63 		dev_err(dev, "wil_priv_init failed\n");
64 		goto out_wdev;
65 	}
66 
67 	wdev->iftype = NL80211_IFTYPE_STATION; /* TODO */
68 	/* default monitor channel */
69 	ch = wdev->wiphy->bands[IEEE80211_BAND_60GHZ]->channels;
70 	cfg80211_chandef_create(&wdev->preset_chandef, ch, NL80211_CHAN_NO_HT);
71 
72 	ndev = alloc_netdev(0, "wlan%d", ether_setup);
73 	if (!ndev) {
74 		dev_err(dev, "alloc_netdev_mqs failed\n");
75 		rc = -ENOMEM;
76 		goto out_priv;
77 	}
78 
79 	ndev->netdev_ops = &wil_netdev_ops;
80 	ndev->ieee80211_ptr = wdev;
81 	SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
82 	wdev->netdev = ndev;
83 
84 	wil_link_off(wil);
85 
86 	return wil;
87 
88  out_priv:
89 	wil_priv_deinit(wil);
90 
91  out_wdev:
92 	wil_wdev_free(wil);
93 
94 	return ERR_PTR(rc);
95 }
96 
97 void wil_if_free(struct wil6210_priv *wil)
98 {
99 	struct net_device *ndev = wil_to_ndev(wil);
100 	if (!ndev)
101 		return;
102 
103 	free_netdev(ndev);
104 	wil_priv_deinit(wil);
105 	wil_wdev_free(wil);
106 }
107 
108 int wil_if_add(struct wil6210_priv *wil)
109 {
110 	struct net_device *ndev = wil_to_ndev(wil);
111 	int rc;
112 
113 	rc = register_netdev(ndev);
114 	if (rc < 0) {
115 		dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc);
116 		return rc;
117 	}
118 
119 	wil_link_off(wil);
120 
121 	return 0;
122 }
123 
124 void wil_if_remove(struct wil6210_priv *wil)
125 {
126 	struct net_device *ndev = wil_to_ndev(wil);
127 
128 	unregister_netdev(ndev);
129 }
130