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250 lines
6.8 KiB
Diff
250 lines
6.8 KiB
Diff
From ef5c58e9a39ba9a264fec2c2bfddbae51fe85da1 Mon Sep 17 00:00:00 2001
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From: Ivo van Doorn <IvDoorn@gmail.com>
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Date: Thu, 21 May 2009 19:17:53 +0200
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Subject: [PATCH 1/2] rt2x00: Add rt2x00soc bus module
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Add new library module for SoC drivers.
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This is needed to fully support the platform
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driver part of rt2800pci.
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Based on original patch from Felix.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
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---
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drivers/net/wireless/rt2x00/Kconfig | 4 +
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drivers/net/wireless/rt2x00/Makefile | 1 +
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drivers/net/wireless/rt2x00/rt2x00soc.c | 159 +++++++++++++++++++++++++++++++
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drivers/net/wireless/rt2x00/rt2x00soc.h | 52 ++++++++++
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4 files changed, 216 insertions(+), 0 deletions(-)
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create mode 100644 drivers/net/wireless/rt2x00/rt2x00soc.c
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create mode 100644 drivers/net/wireless/rt2x00/rt2x00soc.h
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--- a/drivers/net/wireless/rt2x00/Makefile
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+++ b/drivers/net/wireless/rt2x00/Makefile
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@@ -12,6 +12,7 @@ rt2x00lib-$(CONFIG_RT2X00_LIB_HT) += rt2
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obj-$(CONFIG_RT2X00_LIB) += rt2x00lib.o
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obj-$(CONFIG_RT2X00_LIB_PCI) += rt2x00pci.o
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+obj-$(CONFIG_RT2X00_LIB_SOC) += rt2x00soc.o
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obj-$(CONFIG_RT2X00_LIB_USB) += rt2x00usb.o
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obj-$(CONFIG_RT2400PCI) += rt2400pci.o
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obj-$(CONFIG_RT2500PCI) += rt2500pci.o
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--- /dev/null
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+++ b/drivers/net/wireless/rt2x00/rt2x00soc.c
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@@ -0,0 +1,159 @@
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+/*
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+ Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
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+ <http://rt2x00.serialmonkey.com>
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the
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+ Free Software Foundation, Inc.,
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+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+ */
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+
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+/*
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+ Module: rt2x00soc
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+ Abstract: rt2x00 generic soc device routines.
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+ */
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+
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+#include <linux/bug.h>
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/platform_device.h>
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+
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+#include "rt2x00.h"
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+#include "rt2x00soc.h"
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+
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+static void rt2x00soc_free_reg(struct rt2x00_dev *rt2x00dev)
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+{
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+ kfree(rt2x00dev->rf);
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+ rt2x00dev->rf = NULL;
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+
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+ kfree(rt2x00dev->eeprom);
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+ rt2x00dev->eeprom = NULL;
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+}
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+
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+static int rt2x00soc_alloc_reg(struct rt2x00_dev *rt2x00dev)
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+{
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+ struct platform_device *pdev = to_platform_device(rt2x00dev->dev);
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+ struct resource *res;
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+
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+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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+ if (!res)
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+ return -ENODEV;
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+
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+ rt2x00dev->csr.base = (void __iomem *)KSEG1ADDR(res->start);
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+ if (!rt2x00dev->csr.base)
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+ goto exit;
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+
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+ rt2x00dev->eeprom = kzalloc(rt2x00dev->ops->eeprom_size, GFP_KERNEL);
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+ if (!rt2x00dev->eeprom)
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+ goto exit;
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+
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+ rt2x00dev->rf = kzalloc(rt2x00dev->ops->rf_size, GFP_KERNEL);
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+ if (!rt2x00dev->rf)
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+ goto exit;
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+
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+ return 0;
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+
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+exit:
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+ ERROR_PROBE("Failed to allocate registers.\n");
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+ rt2x00soc_free_reg(rt2x00dev);
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+
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+ return -ENOMEM;
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+}
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+
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+int rt2x00soc_probe(struct platform_device *pdev,
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+ const unsigned short chipset,
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+ const struct rt2x00_ops *ops)
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+{
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+ struct ieee80211_hw *hw;
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+ struct rt2x00_dev *rt2x00dev;
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+ int retval;
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+
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+ hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
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+ if (!hw) {
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+ ERROR_PROBE("Failed to allocate hardware.\n");
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+ return -ENOMEM;
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+ }
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+
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+ platform_set_drvdata(pdev, hw);
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+
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+ rt2x00dev = hw->priv;
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+ rt2x00dev->dev = &pdev->dev;
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+ rt2x00dev->ops = ops;
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+ rt2x00dev->hw = hw;
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+ rt2x00dev->irq = platform_get_irq(pdev, 0);
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+ rt2x00dev->name = pdev->dev.driver->name;
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+
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+ rt2x00_set_chip_rt(rt2x00dev, chipset);
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+
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+ retval = rt2x00soc_alloc_reg(rt2x00dev);
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+ if (retval)
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+ goto exit_free_device;
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+
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+ retval = rt2x00lib_probe_dev(rt2x00dev);
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+ if (retval)
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+ goto exit_free_reg;
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+
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+ return 0;
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+
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+exit_free_reg:
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+ rt2x00soc_free_reg(rt2x00dev);
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+
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+exit_free_device:
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+ ieee80211_free_hw(hw);
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+
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+ return retval;
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+}
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+
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+int rt2x00soc_remove(struct platform_device *pdev)
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+{
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+ struct ieee80211_hw *hw = platform_get_drvdata(pdev);
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+ struct rt2x00_dev *rt2x00dev = hw->priv;
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+
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+ /*
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+ * Free all allocated data.
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+ */
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+ rt2x00lib_remove_dev(rt2x00dev);
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+ rt2x00soc_free_reg(rt2x00dev);
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+ ieee80211_free_hw(hw);
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+
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+ return 0;
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+}
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+EXPORT_SYMBOL_GPL(rt2x00soc_remove);
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+
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+#ifdef CONFIG_PM
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+int rt2x00soc_suspend(struct platform_device *pdev, pm_message_t state)
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+{
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+ struct ieee80211_hw *hw = platform_get_drvdata(pdev);
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+ struct rt2x00_dev *rt2x00dev = hw->priv;
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+
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+ return rt2x00lib_suspend(rt2x00dev, state);
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+}
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+EXPORT_SYMBOL_GPL(rt2x00soc_suspend);
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+
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+int rt2x00soc_resume(struct platform_device *pdev)
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+{
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+ struct ieee80211_hw *hw = platform_get_drvdata(pdev);
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+ struct rt2x00_dev *rt2x00dev = hw->priv;
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+
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+ return rt2x00lib_resume(rt2x00dev);
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+}
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+EXPORT_SYMBOL_GPL(rt2x00soc_resume);
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+#endif /* CONFIG_PM */
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+
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+/*
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+ * rt2x00soc module information.
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+ */
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+MODULE_AUTHOR(DRV_PROJECT);
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+MODULE_VERSION(DRV_VERSION);
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+MODULE_DESCRIPTION("rt2x00 soc library");
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+MODULE_LICENSE("GPL");
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--- /dev/null
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+++ b/drivers/net/wireless/rt2x00/rt2x00soc.h
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@@ -0,0 +1,52 @@
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+/*
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+ Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
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+ <http://rt2x00.serialmonkey.com>
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the
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+ Free Software Foundation, Inc.,
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+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+ */
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+
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+/*
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+ Module: rt2x00soc
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+ Abstract: Data structures for the rt2x00soc module.
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+ */
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+
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+#ifndef RT2X00SOC_H
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+#define RT2X00SOC_H
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+
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+#define KSEG1ADDR(__ptr) __ptr
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+
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+#define __rt2x00soc_probe(__chipset, __ops) \
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+static int __rt2x00soc_probe(struct platform_device *pdev) \
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+{ \
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+ return rt2x00soc_probe(pdev, (__chipset), (__ops)); \
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+}
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+
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+/*
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+ * SoC driver handlers.
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+ */
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+int rt2x00soc_probe(struct platform_device *pdev,
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+ const unsigned short chipset,
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+ const struct rt2x00_ops *ops);
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+int rt2x00soc_remove(struct platform_device *pdev);
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+#ifdef CONFIG_PM
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+int rt2x00soc_suspend(struct platform_device *pdev, pm_message_t state);
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+int rt2x00soc_resume(struct platform_device *pdev);
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+#else
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+#define rt2x00soc_suspend NULL
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+#define rt2x00soc_resume NULL
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+#endif /* CONFIG_PM */
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+
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+#endif /* RT2X00SOC_H */
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