diff options
Diffstat (limited to 'package/mac80211/patches/406-ath9k-introduce-platform-driver-for-AHB-bus-support.patch')
| -rw-r--r-- | package/mac80211/patches/406-ath9k-introduce-platform-driver-for-AHB-bus-support.patch | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/package/mac80211/patches/406-ath9k-introduce-platform-driver-for-AHB-bus-support.patch b/package/mac80211/patches/406-ath9k-introduce-platform-driver-for-AHB-bus-support.patch new file mode 100644 index 000000000..99eec34ba --- /dev/null +++ b/package/mac80211/patches/406-ath9k-introduce-platform-driver-for-AHB-bus-support.patch @@ -0,0 +1,260 @@ +From 9b3c1b50a35455e28c5b2fede615a304df42e758 Mon Sep 17 00:00:00 2001 +From: Gabor Juhos <juhosg@openwrt.org> +Date: Mon, 5 Jan 2009 11:03:17 +0100 +Subject: [PATCH 06/11] ath9k: introduce platform driver for AHB bus support + +This patch adds the platform_driver itself, and modifies the main driver +to register it. + +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +Signed-off-by: Imre Kaloz <kaloz@openwrt.org> +--- + drivers/net/wireless/ath9k/Makefile | 1 + + drivers/net/wireless/ath9k/ahb.c | 179 +++++++++++++++++++++++++++++++++++ + drivers/net/wireless/ath9k/core.h | 9 ++ + drivers/net/wireless/ath9k/main.c | 10 ++ + 4 files changed, 199 insertions(+), 0 deletions(-) + +--- a/drivers/net/wireless/ath9k/Makefile ++++ b/drivers/net/wireless/ath9k/Makefile +@@ -12,6 +12,7 @@ ath9k-y += hw.o \ + rc.o + + ath9k-$(CONFIG_PCI) += pci.o ++ath9k-$(CONFIG_ATHEROS_AR71XX) += ahb.o + ath9k-$(CONFIG_ATH9K_DEBUG) += debug.o + + obj-$(CONFIG_ATH9K) += ath9k.o +--- /dev/null ++++ b/drivers/net/wireless/ath9k/ahb.c +@@ -0,0 +1,179 @@ ++/* ++ * Copyright (c) 2008 Atheros Communications Inc. ++ * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org> ++ * ++ * Permission to use, copy, modify, and/or distribute this software for any ++ * purpose with or without fee is hereby granted, provided that the above ++ * copyright notice and this permission notice appear in all copies. ++ * ++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES ++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF ++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF ++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ++ */ ++ ++#include <linux/nl80211.h> ++#include <linux/platform_device.h> ++#include "core.h" ++#include "reg.h" ++#include "hw.h" ++ ++/* return bus cachesize in 4B word units */ ++static void ath_ahb_read_cachesize(struct ath_softc *sc, int *csz) ++{ ++ *csz = L1_CACHE_BYTES >> 2; ++} ++ ++static void ath_ahb_cleanup(struct ath_softc *sc) ++{ ++ struct ieee80211_hw *hw = sc->hw; ++ ++ free_irq(sc->irq, sc); ++ ++ ath_detach(sc); ++ iounmap(sc->mem); ++ ieee80211_free_hw(hw); ++} ++ ++static struct ath_bus_ops ath_ahb_bus_ops = { ++ .read_cachesize = ath_ahb_read_cachesize, ++ .cleanup = ath_ahb_cleanup, ++}; ++ ++static int ath_ahb_probe(struct platform_device *pdev) ++{ ++ void __iomem *mem; ++ struct ath_softc *sc; ++ struct ieee80211_hw *hw; ++ struct resource *res; ++ int irq; ++ int ret = 0; ++ struct ath_hal *ah; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (res == NULL) { ++ dev_err(&pdev->dev, "no memory resource found\n"); ++ ret = -ENXIO; ++ goto err_out; ++ } ++ ++ mem = ioremap_nocache(res->start, res->end - res->start + 1); ++ if (mem == NULL) { ++ dev_err(&pdev->dev, "ioremap failed\n"); ++ ret = -ENOMEM; ++ goto err_out; ++ } ++ ++ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); ++ if (res == NULL) { ++ dev_err(&pdev->dev, "no IRQ resource found\n"); ++ ret = -ENXIO; ++ goto err_iounmap; ++ } ++ ++ irq = res->start; ++ ++ hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops); ++ if (hw == NULL) { ++ dev_err(&pdev->dev, "no memory for ieee80211_hw\n"); ++ ret = -ENOMEM; ++ goto err_iounmap; ++ } ++ ++ hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | ++ IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | ++ IEEE80211_HW_SIGNAL_DBM | ++ IEEE80211_HW_NOISE_DBM; ++ ++ hw->wiphy->interface_modes = ++ BIT(NL80211_IFTYPE_AP) | ++ BIT(NL80211_IFTYPE_STATION) | ++ BIT(NL80211_IFTYPE_ADHOC); ++ ++ SET_IEEE80211_DEV(hw, &pdev->dev); ++ platform_set_drvdata(pdev, hw); ++ ++ sc = hw->priv; ++ sc->hw = hw; ++ sc->dev = &pdev->dev; ++ sc->mem = mem; ++ sc->bus_ops = &ath_ahb_bus_ops; ++ sc->irq = irq; ++ ++ ret = ath_attach(AR5416_AR9100_DEVID, sc); ++ if (ret != 0) { ++ dev_err(&pdev->dev, "failed to attach device, err=%d\n", ret); ++ ret = -ENODEV; ++ goto err_free_hw; ++ } ++ ++ ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc); ++ if (ret) { ++ dev_err(&pdev->dev, "request_irq failed, err=%d\n", ret); ++ ret = -EIO; ++ goto err_detach; ++ } ++ ++ ah = sc->sc_ah; ++ printk(KERN_INFO ++ "%s: Atheros AR%s MAC/BB Rev:%x, " ++ "AR%s RF Rev:%x, mem=0x%lx, irq=%d\n", ++ wiphy_name(hw->wiphy), ++ ath_mac_bb_name(ah->ah_macVersion), ++ ah->ah_macRev, ++ ath_rf_name((ah->ah_analog5GhzRev & AR_RADIO_SREV_MAJOR)), ++ ah->ah_phyRev, ++ (unsigned long)mem, irq); ++ ++ return 0; ++ ++ err_detach: ++ ath_detach(sc); ++ err_free_hw: ++ ieee80211_free_hw(hw); ++ platform_set_drvdata(pdev, NULL); ++ err_iounmap: ++ iounmap(mem); ++ err_out: ++ return ret; ++} ++ ++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; ++ ++ free_irq(sc->irq, sc); ++ ath_detach(sc); ++ iounmap(sc->mem); ++ ieee80211_free_hw(hw); ++ platform_set_drvdata(pdev, NULL); ++ } ++ ++ return 0; ++} ++ ++static struct platform_driver ath_ahb_driver = { ++ .probe = ath_ahb_probe, ++ .remove = ath_ahb_remove, ++ .driver = { ++ .name = "ath9k", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++int ath_ahb_init(void) ++{ ++ return platform_driver_register(&ath_ahb_driver); ++} ++ ++void ath_ahb_exit(void) ++{ ++ platform_driver_register(&ath_ahb_driver); ++} +--- a/drivers/net/wireless/ath9k/core.h ++++ b/drivers/net/wireless/ath9k/core.h +@@ -705,6 +705,7 @@ struct ath_softc { + struct tasklet_struct bcon_tasklet; + struct ath_hal *sc_ah; + void __iomem *mem; ++ int irq; + spinlock_t sc_resetlock; + struct mutex mutex; + +@@ -782,4 +783,12 @@ static inline int ath_pci_init(void) { r + static inline void ath_pci_exit(void) {}; + #endif + ++#ifdef CONFIG_ATHEROS_AR71XX ++int ath_ahb_init(void); ++void ath_ahb_exit(void); ++#else ++static inline int ath_ahb_init(void) { return 0; }; ++static inline void ath_ahb_exit(void) {}; ++#endif ++ + #endif /* CORE_H */ +--- a/drivers/net/wireless/ath9k/main.c ++++ b/drivers/net/wireless/ath9k/main.c +@@ -2514,8 +2514,17 @@ static int __init ath9k_init(void) + goto err_rate_unregister; + } + ++ error = ath_ahb_init(); ++ if (error < 0) { ++ error = -ENODEV; ++ goto err_pci_exit; ++ } ++ + return 0; + ++ err_pci_exit: ++ ath_pci_exit(); ++ + err_rate_unregister: + ath_rate_control_unregister(); + err_out: +@@ -2525,6 +2534,7 @@ module_init(ath9k_init); + + static void __exit ath9k_exit(void) + { ++ ath_ahb_exit(); + ath_pci_exit(); + ath_rate_control_unregister(); + printk(KERN_INFO "%s: Driver unloaded\n", dev_info); |