aboutsummaryrefslogtreecommitdiffstats
path: root/package/mac80211/patches/407-ath9k-introduce-platform-driver-for-AHB-bus-support.patch
diff options
context:
space:
mode:
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.patch331
1 files changed, 331 insertions, 0 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
new file mode 100644
index 0000000000..255d090110
--- /dev/null
+++ b/package/mac80211/patches/407-ath9k-introduce-platform-driver-for-AHB-bus-support.patch
@@ -0,0 +1,331 @@
+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);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 02:21:27 +0000