diff options
Diffstat (limited to 'package/mac80211/patches/407-ath9k-introduce-platform-driver-for-AHB-bus-support.patch')
-rw-r--r-- | package/mac80211/patches/407-ath9k-introduce-platform-driver-for-AHB-bus-support.patch | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/package/mac80211/patches/407-ath9k-introduce-platform-driver-for-AHB-bus-support.patch b/package/mac80211/patches/407-ath9k-introduce-platform-driver-for-AHB-bus-support.patch deleted file mode 100644 index 255d09011..000000000 --- a/package/mac80211/patches/407-ath9k-introduce-platform-driver-for-AHB-bus-support.patch +++ /dev/null @@ -1,331 +0,0 @@ -From 9456893748c407d9fed06046308177edaca38450 Mon Sep 17 00:00:00 2001 -From: Gabor Juhos <juhosg@openwrt.org> -Date: Fri, 2 Jan 2009 16:12:30 +0100 -Subject: [RFC 07/12] 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 | 258 +++++++++++++++++++++++++++++++++++ - drivers/net/wireless/ath9k/core.h | 8 + - drivers/net/wireless/ath9k/main.c | 10 ++ - 4 files changed, 277 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 +1,258 @@ -+/* -+ * 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" -+ -+static dma_addr_t ath_ahb_map_single_to_device(struct ath_softc *sc, -+ void *p, size_t size) -+{ -+ return dma_map_single(NULL, p, size, DMA_TO_DEVICE); -+} -+ -+static void ath_ahb_unmap_single_to_device(struct ath_softc *sc, -+ dma_addr_t da, size_t size) -+{ -+ dma_unmap_single(NULL, da, size, DMA_TO_DEVICE); -+} -+ -+static dma_addr_t ath_ahb_map_single_from_device(struct ath_softc *sc, -+ void *p, size_t size) -+{ -+ return dma_map_single(NULL, p, size, DMA_FROM_DEVICE); -+} -+ -+static void ath_ahb_unmap_single_from_device(struct ath_softc *sc, -+ dma_addr_t da, size_t size) -+{ -+ dma_unmap_single(NULL, da, size, DMA_FROM_DEVICE); -+} -+ -+static int ath_ahb_dma_mapping_error(struct ath_softc *sc, dma_addr_t da) -+{ -+ return dma_mapping_error(NULL, da); -+} -+ -+static void ath_ahb_sync_single_for_cpu(struct ath_softc *sc, dma_addr_t da, -+ size_t size) -+{ -+ dma_sync_single_for_cpu(NULL, da, size, DMA_FROM_DEVICE); -+} -+ -+static void *ath_ahb_dma_alloc(struct ath_softc *sc, size_t size, -+ dma_addr_t *pda) -+{ -+ return dma_alloc_coherent(NULL, size, pda, GFP_KERNEL); -+} -+ -+static void ath_ahb_dma_free(struct ath_softc *sc, size_t size, void *p, -+ dma_addr_t da) -+{ -+ dma_free_coherent(NULL, size, p, da); -+} -+ -+static void ath_ahb_reg_write(struct ath_hal *ah, unsigned reg, u32 val) -+{ -+ __raw_writel(val, ah->ah_sh + reg); -+} -+ -+static u32 ath_ahb_reg_read(struct ath_hal *ah, unsigned reg) -+{ -+ return __raw_readl(ah->ah_sh + reg); -+} -+ -+/* 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 platform_device *pdev = to_platform_device(sc->dev); -+ struct ieee80211_hw *hw = sc->hw; -+ struct resource *res; -+ -+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); -+ if (res) -+ free_irq(res->start, sc); -+ -+ ath_detach(sc); -+ iounmap(sc->mem); -+ ieee80211_free_hw(hw); -+ platform_set_drvdata(pdev, NULL); -+} -+ -+static struct ath_bus_ops ath_ahb_bus_ops = { -+ .dma_map_single_to_device = ath_ahb_map_single_to_device, -+ .dma_unmap_single_to_device = ath_ahb_unmap_single_to_device, -+ .dma_map_single_from_device = ath_ahb_map_single_from_device, -+ .dma_unmap_single_from_device = ath_ahb_unmap_single_from_device, -+ .dma_map_single_to_device = ath_ahb_map_single_to_device, -+ .dma_mapping_error = ath_ahb_dma_mapping_error, -+ .dma_sync_single_for_cpu = ath_ahb_sync_single_for_cpu, -+ .dma_alloc = ath_ahb_dma_alloc, -+ .dma_free = ath_ahb_dma_free, -+ -+ .reg_read = ath_ahb_reg_read, -+ .reg_write = ath_ahb_reg_write, -+ -+ .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; -+ -+ 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 resource *res; -+ struct ath_softc *sc = hw->priv; -+ -+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); -+ if (res) -+ free_irq(res->start, 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 -@@ -874,4 +874,12 @@ 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 -@@ -2533,8 +2533,17 @@ 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: -@@ -2544,6 +2553,7 @@ 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); |