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From ff22aa7443c57f49f9fdaf703aa7035c1b13d7f4 Mon Sep 17 00:00:00 2001
From: Ivo van Doorn <IvDoorn@gmail.com>
Date: Sun, 26 Apr 2009 15:49:55 +0200
Subject: [PATCH 1/4] rt2x00: Add rt2x00soc bus module
Add new library module for SoC drivers.
This is needed to fully support the platform
driver part of rt2800pci.
Based on original patch from Felix.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
---
drivers/net/wireless/rt2x00/Kconfig | 4 +
drivers/net/wireless/rt2x00/Makefile | 1 +
drivers/net/wireless/rt2x00/rt2x00soc.c | 159 +++++++++++++++++++++++++++++++
drivers/net/wireless/rt2x00/rt2x00soc.h | 52 ++++++++++
4 files changed, 216 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/wireless/rt2x00/rt2x00soc.c
create mode 100644 drivers/net/wireless/rt2x00/rt2x00soc.h
--- a/drivers/net/wireless/rt2x00/Makefile
+++ b/drivers/net/wireless/rt2x00/Makefile
@@ -12,6 +12,7 @@ rt2x00lib-$(CONFIG_RT2X00_LIB_HT) += rt2
obj-$(CONFIG_RT2X00_LIB) += rt2x00lib.o
obj-$(CONFIG_RT2X00_LIB_PCI) += rt2x00pci.o
+obj-$(CONFIG_RT2X00_LIB_SOC) += rt2x00soc.o
obj-$(CONFIG_RT2X00_LIB_USB) += rt2x00usb.o
obj-$(CONFIG_RT2400PCI) += rt2400pci.o
obj-$(CONFIG_RT2500PCI) += rt2500pci.o
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2x00soc.c
@@ -0,0 +1,159 @@
+/*
+ Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
+ <http://rt2x00.serialmonkey.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the
+ Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ Module: rt2x00soc
+ Abstract: rt2x00 generic soc device routines.
+ */
+
+#include <linux/bug.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include "rt2x00.h"
+#include "rt2x00soc.h"
+
+static void rt2x00soc_free_reg(struct rt2x00_dev *rt2x00dev)
+{
+ kfree(rt2x00dev->rf);
+ rt2x00dev->rf = NULL;
+
+ kfree(rt2x00dev->eeprom);
+ rt2x00dev->eeprom = NULL;
+}
+
+static int rt2x00soc_alloc_reg(struct rt2x00_dev *rt2x00dev)
+{
+ struct platform_device *pdev = to_platform_device(rt2x00dev->dev);
+ struct resource *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ rt2x00dev->csr.base = (void __iomem *)KSEG1ADDR(res->start);
+ if (!rt2x00dev->csr.base)
+ goto exit;
+
+ rt2x00dev->eeprom = kzalloc(rt2x00dev->ops->eeprom_size, GFP_KERNEL);
+ if (!rt2x00dev->eeprom)
+ goto exit;
+
+ rt2x00dev->rf = kzalloc(rt2x00dev->ops->rf_size, GFP_KERNEL);
+ if (!rt2x00dev->rf)
+ goto exit;
+
+ return 0;
+
+exit:
+ ERROR_PROBE("Failed to allocate registers.\n");
+ rt2x00soc_free_reg(rt2x00dev);
+
+ return -ENOMEM;
+}
+
+int rt2x00soc_probe(struct platform_device *pdev,
+ const unsigned short chipset,
+ const struct rt2x00_ops *ops)
+{
+ struct ieee80211_hw *hw;
+ struct rt2x00_dev *rt2x00dev;
+ int retval;
+
+ hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
+ if (!hw) {
+ ERROR_PROBE("Failed to allocate hardware.\n");
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, hw);
+
+ rt2x00dev = hw->priv;
+ rt2x00dev->dev = &pdev->dev;
+ rt2x00dev->ops = ops;
+ rt2x00dev->hw = hw;
+ rt2x00dev->irq = platform_get_irq(pdev, 0);
+ rt2x00dev->name = pdev->dev.driver->name;
+
+ rt2x00_set_chip_rt(rt2x00dev, chipset);
+
+ retval = rt2x00soc_alloc_reg(rt2x00dev);
+ if (retval)
+ goto exit_free_device;
+
+ retval = rt2x00lib_probe_dev(rt2x00dev);
+ if (retval)
+ goto exit_free_reg;
+
+ return 0;
+
+exit_free_reg:
+ rt2x00soc_free_reg(rt2x00dev);
+
+exit_free_device:
+ ieee80211_free_hw(hw);
+
+ return retval;
+}
+
+int rt2x00soc_remove(struct platform_device *pdev)
+{
+ struct ieee80211_hw *hw = platform_get_drvdata(pdev);
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+
+ /*
+ * Free all allocated data.
+ */
+ rt2x00lib_remove_dev(rt2x00dev);
+ rt2x00soc_free_reg(rt2x00dev);
+ ieee80211_free_hw(hw);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00soc_remove);
+
+#ifdef CONFIG_PM
+int rt2x00soc_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct ieee80211_hw *hw = platform_get_drvdata(pdev);
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+
+ return rt2x00lib_suspend(rt2x00dev, state);
+}
+EXPORT_SYMBOL_GPL(rt2x00soc_suspend);
+
+int rt2x00soc_resume(struct platform_device *pdev)
+{
+ struct ieee80211_hw *hw = platform_get_drvdata(pdev);
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+
+ return rt2x00lib_resume(rt2x00dev);
+}
+EXPORT_SYMBOL_GPL(rt2x00soc_resume);
+#endif /* CONFIG_PM */
+
+/*
+ * rt2x00soc module information.
+ */
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("rt2x00 soc library");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2x00soc.h
@@ -0,0 +1,52 @@
+/*
+ Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
+ <http://rt2x00.serialmonkey.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the
+ Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ Module: rt2x00soc
+ Abstract: Data structures for the rt2x00soc module.
+ */
+
+#ifndef RT2X00SOC_H
+#define RT2X00SOC_H
+
+#define KSEG1ADDR(__ptr) __ptr
+
+#define __rt2x00soc_probe(__chipset, __ops) \
+static int __rt2x00soc_probe(struct platform_device *pdev) \
+{ \
+ return rt2x00soc_probe(pdev, (__chipset), (__ops)); \
+}
+
+/*
+ * SoC driver handlers.
+ */
+int rt2x00soc_probe(struct platform_device *pdev,
+ const unsigned short chipset,
+ const struct rt2x00_ops *ops);
+int rt2x00soc_remove(struct platform_device *pdev);
+#ifdef CONFIG_PM
+int rt2x00soc_suspend(struct platform_device *pdev, pm_message_t state);
+int rt2x00soc_resume(struct platform_device *pdev);
+#else
+#define rt2x00soc_suspend NULL
+#define rt2x00soc_resume NULL
+#endif /* CONFIG_PM */
+
+#endif /* RT2X00SOC_H */
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