From bce048d77dff3dcfd75d54dc38580c81baa95853 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Tue, 3 Mar 2009 19:23:28 +0200 Subject: ath9k: Add data structure for supporting virtual radio/wiphy operation This is the initial step in allowing ath9k to register multiple virtual radios (wiphys). The goal of virtual radios is to allow the same radio to be shared for multiple virtual interfaces that may operate on different channels. The mac80211 virtual interface support is designed only for single channel operation and as such, it is not suitable for this type of use. Anyway, it can be used on top of the virtual radio concept, if desired (e.g., use two virtual radios to handle two channels and then add multiple mac80211 virtual interfaces on top of each virtual radio). The new struct ath_wiphy is now registered as the driver data structure for wiphy. This structure has a pointer to the shared (among virtual wiphys of the same physical radio) struct ath_softc data. The primary wiphy maintains the allocated memory for ath_softc. Secondary (virtual) wiphys will only allocate the new ath_wiphy structure. Registration of secondary wiphys is added in a separate patch. Signed-off-by: Jouni Malinen Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/ahb.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'drivers/net/wireless/ath9k/ahb.c') diff --git a/drivers/net/wireless/ath9k/ahb.c b/drivers/net/wireless/ath9k/ahb.c index 391c9fd3b64..bc562bd8889 100644 --- a/drivers/net/wireless/ath9k/ahb.c +++ b/drivers/net/wireless/ath9k/ahb.c @@ -96,7 +96,8 @@ static int ath_ahb_probe(struct platform_device *pdev) irq = res->start; - hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops); + hw = ieee80211_alloc_hw(sizeof(struct ath_wiphy) + + sizeof(struct ath_softc), &ath9k_ops); if (hw == NULL) { dev_err(&pdev->dev, "no memory for ieee80211_hw\n"); ret = -ENOMEM; @@ -106,7 +107,11 @@ static int ath_ahb_probe(struct platform_device *pdev) SET_IEEE80211_DEV(hw, &pdev->dev); platform_set_drvdata(pdev, hw); - sc = hw->priv; + aphy = hw->priv; + sc = (struct ath_softc *) (aphy + 1); + aphy->sc = sc; + aphy->hw = hw; + sc->pri_wiphy = aphy; sc->hw = hw; sc->dev = &pdev->dev; sc->mem = mem; @@ -156,7 +161,8 @@ static int ath_ahb_remove(struct platform_device *pdev) struct ieee80211_hw *hw = platform_get_drvdata(pdev); if (hw) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; ath_cleanup(sc); platform_set_drvdata(pdev, NULL); -- cgit v1.2.3-70-g09d2