+++ /dev/null
-From 23f9e44a18b5a2dfaa1326aa30dd07e1449e8b5f Mon Sep 17 00:00:00 2001
-From: Gabor Juhos <juhosg@openwrt.org>
-Date: Mon, 5 Jan 2009 11:03:17 +0100
-Subject: [PATCH v3 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.
-
-Changes-licensed-under: ISC
-
-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 | 160 +++++++++++++++++++++++++++++++++++
- drivers/net/wireless/ath9k/core.h | 8 ++
- drivers/net/wireless/ath9k/main.c | 10 ++
- 4 files changed, 179 insertions(+), 0 deletions(-)
- create mode 100644 drivers/net/wireless/ath9k/ahb.c
-
---- 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 +1,160 @@
-+/*
-+ * 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)
-+{
-+ iounmap(sc->mem);
-+}
-+
-+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;
-+ }
-+
-+ 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;
-+
-+ ath_cleanup(sc);
-+ 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_unregister(&ath_ahb_driver);
-+}
---- a/drivers/net/wireless/ath9k/core.h
-+++ b/drivers/net/wireless/ath9k/core.h
-@@ -784,4 +784,12 @@ 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
-@@ -2531,8 +2531,17 @@ 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:
-@@ -2542,6 +2551,7 @@ 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);
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