2 * Copyright (c) 2008 Atheros Communications Inc.
3 * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
4 * Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org>
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 #include <linux/nl80211.h>
20 #include <linux/platform_device.h>
25 /* return bus cachesize in 4B word units */
26 static void ath_ahb_read_cachesize(struct ath_softc *sc, int *csz)
28 *csz = L1_CACHE_BYTES >> 2;
31 static void ath_ahb_cleanup(struct ath_softc *sc)
36 static struct ath_bus_ops ath_ahb_bus_ops = {
37 .read_cachesize = ath_ahb_read_cachesize,
38 .cleanup = ath_ahb_cleanup,
41 static int ath_ahb_probe(struct platform_device *pdev)
45 struct ieee80211_hw *hw;
51 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
53 dev_err(&pdev->dev, "no memory resource found\n");
58 mem = ioremap_nocache(res->start, res->end - res->start + 1);
60 dev_err(&pdev->dev, "ioremap failed\n");
65 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
67 dev_err(&pdev->dev, "no IRQ resource found\n");
74 hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops);
76 dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
81 SET_IEEE80211_DEV(hw, &pdev->dev);
82 platform_set_drvdata(pdev, hw);
88 sc->bus_ops = &ath_ahb_bus_ops;
91 ret = ath_attach(AR5416_AR9100_DEVID, sc);
93 dev_err(&pdev->dev, "failed to attach device, err=%d\n", ret);
98 ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc);
100 dev_err(&pdev->dev, "request_irq failed, err=%d\n", ret);
107 "%s: Atheros AR%s MAC/BB Rev:%x, "
108 "AR%s RF Rev:%x, mem=0x%lx, irq=%d\n",
109 wiphy_name(hw->wiphy),
110 ath_mac_bb_name(ah->ah_macVersion),
112 ath_rf_name((ah->ah_analog5GhzRev & AR_RADIO_SREV_MAJOR)),
114 (unsigned long)mem, irq);
121 ieee80211_free_hw(hw);
122 platform_set_drvdata(pdev, NULL);
129 static int ath_ahb_remove(struct platform_device *pdev)
131 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
134 struct ath_softc *sc = hw->priv;
137 platform_set_drvdata(pdev, NULL);
143 static struct platform_driver ath_ahb_driver = {
144 .probe = ath_ahb_probe,
145 .remove = ath_ahb_remove,
148 .owner = THIS_MODULE,
152 int ath_ahb_init(void)
154 return platform_driver_register(&ath_ahb_driver);
157 void ath_ahb_exit(void)
159 platform_driver_unregister(&ath_ahb_driver);