154 lines
3.3 KiB
C
154 lines
3.3 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
/*
|
||
|
Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
|
||
|
Copyright (C) 2004 - 2009 Felix Fietkau <nbd@openwrt.org>
|
||
|
<http://rt2x00.serialmonkey.com>
|
||
|
|
||
|
*/
|
||
|
|
||
|
/*
|
||
|
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 <linux/slab.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;
|
||
|
|
||
|
iounmap(rt2x00dev->csr.base);
|
||
|
}
|
||
|
|
||
|
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 = ioremap(res->start, resource_size(res));
|
||
|
if (!rt2x00dev->csr.base)
|
||
|
return -ENOMEM;
|
||
|
|
||
|
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:
|
||
|
rt2x00_probe_err("Failed to allocate registers\n");
|
||
|
rt2x00soc_free_reg(rt2x00dev);
|
||
|
|
||
|
return -ENOMEM;
|
||
|
}
|
||
|
|
||
|
int rt2x00soc_probe(struct platform_device *pdev, 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) {
|
||
|
rt2x00_probe_err("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;
|
||
|
|
||
|
rt2x00dev->clk = clk_get(&pdev->dev, NULL);
|
||
|
if (IS_ERR(rt2x00dev->clk))
|
||
|
rt2x00dev->clk = NULL;
|
||
|
|
||
|
rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
EXPORT_SYMBOL_GPL(rt2x00soc_probe);
|
||
|
|
||
|
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);
|
||
|
}
|
||
|
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");
|