mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-17 01:26:57 +07:00
5d78d34ba2
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> Signed-off-by: John W. Linville <linville@tuxdriver.com>
160 lines
3.7 KiB
C
160 lines
3.7 KiB
C
/*
|
|
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");
|