[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / wireless / rt2x00 / rt2x00soc.c

/*
	Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
	Copyright (C) 2004 - 2009 Felix Fietkau <nbd@openwrt.org>
	<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 <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;
}

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 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_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, 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");
Commit	Line	Data
5d78d34b	1	/*
9c9a0d14 GW	2	Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
9c9a0d14 GW	3	Copyright (C) 2004 - 2009 Felix Fietkau <nbd@openwrt.org>
5d78d34b ID	4	<http://rt2x00.serialmonkey.com>
	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the
	18	Free Software Foundation, Inc.,
	19	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	20	*/
	21
	22	/*
	23	Module: rt2x00soc
	24	Abstract: rt2x00 generic soc device routines.
	25	*/
	26
	27	#include <linux/bug.h>
	28	#include <linux/kernel.h>
	29	#include <linux/module.h>
	30	#include <linux/platform_device.h>
5a0e3ad6	31	#include <linux/slab.h>
5d78d34b ID	32
	33	#include "rt2x00.h"
	34	#include "rt2x00soc.h"
	35
	36	static void rt2x00soc_free_reg(struct rt2x00_dev *rt2x00dev)
	37	{
	38	kfree(rt2x00dev->rf);
	39	rt2x00dev->rf = NULL;
	40
	41	kfree(rt2x00dev->eeprom);
	42	rt2x00dev->eeprom = NULL;
	43	}
	44
	45	static int rt2x00soc_alloc_reg(struct rt2x00_dev *rt2x00dev)
	46	{
	47	struct platform_device *pdev = to_platform_device(rt2x00dev->dev);
	48	struct resource *res;
	49
	50	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	51	if (!res)
	52	return -ENODEV;
	53
	54	rt2x00dev->csr.base = (void __iomem *)KSEG1ADDR(res->start);
	55	if (!rt2x00dev->csr.base)
	56	goto exit;
	57
	58	rt2x00dev->eeprom = kzalloc(rt2x00dev->ops->eeprom_size, GFP_KERNEL);
	59	if (!rt2x00dev->eeprom)
	60	goto exit;
	61
	62	rt2x00dev->rf = kzalloc(rt2x00dev->ops->rf_size, GFP_KERNEL);
	63	if (!rt2x00dev->rf)
	64	goto exit;
	65
	66	return 0;
	67
	68	exit:
	69	ERROR_PROBE("Failed to allocate registers.\n");
	70	rt2x00soc_free_reg(rt2x00dev);
	71
	72	return -ENOMEM;
	73	}
	74
714fa663	75	int rt2x00soc_probe(struct platform_device pdev, const struct rt2x00_ops ops)
5d78d34b ID	76	{
	77	struct ieee80211_hw *hw;
	78	struct rt2x00_dev *rt2x00dev;
	79	int retval;
	80
	81	hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
	82	if (!hw) {
	83	ERROR_PROBE("Failed to allocate hardware.\n");
	84	return -ENOMEM;
	85	}
	86
	87	platform_set_drvdata(pdev, hw);
	88
	89	rt2x00dev = hw->priv;
	90	rt2x00dev->dev = &pdev->dev;
	91	rt2x00dev->ops = ops;
	92	rt2x00dev->hw = hw;
	93	rt2x00dev->irq = platform_get_irq(pdev, 0);
	94	rt2x00dev->name = pdev->dev.driver->name;
	95
cea90e55	96	rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
5d78d34b ID	97
	98	retval = rt2x00soc_alloc_reg(rt2x00dev);
	99	if (retval)
	100	goto exit_free_device;
	101
	102	retval = rt2x00lib_probe_dev(rt2x00dev);
	103	if (retval)
	104	goto exit_free_reg;
	105
	106	return 0;
	107
	108	exit_free_reg:
	109	rt2x00soc_free_reg(rt2x00dev);
	110
	111	exit_free_device:
	112	ieee80211_free_hw(hw);
	113
	114	return retval;
	115	}
31f66be4	116	EXPORT_SYMBOL_GPL(rt2x00soc_probe);
5d78d34b ID	117
	118	int rt2x00soc_remove(struct platform_device *pdev)
	119	{
	120	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
	121	struct rt2x00_dev *rt2x00dev = hw->priv;
	122
	123	/*
	124	* Free all allocated data.
	125	*/
	126	rt2x00lib_remove_dev(rt2x00dev);
	127	rt2x00soc_free_reg(rt2x00dev);
	128	ieee80211_free_hw(hw);
	129
	130	return 0;
	131	}
	132	EXPORT_SYMBOL_GPL(rt2x00soc_remove);
	133
	134	#ifdef CONFIG_PM
	135	int rt2x00soc_suspend(struct platform_device *pdev, pm_message_t state)
	136	{
	137	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
	138	struct rt2x00_dev *rt2x00dev = hw->priv;
	139
	140	return rt2x00lib_suspend(rt2x00dev, state);
	141	}
	142	EXPORT_SYMBOL_GPL(rt2x00soc_suspend);
	143
	144	int rt2x00soc_resume(struct platform_device *pdev)
	145	{
	146	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
	147	struct rt2x00_dev *rt2x00dev = hw->priv;
	148
	149	return rt2x00lib_resume(rt2x00dev);
	150	}
	151	EXPORT_SYMBOL_GPL(rt2x00soc_resume);
	152	#endif /* CONFIG_PM */
	153
	154	/*
	155	* rt2x00soc module information.
	156	*/
	157	MODULE_AUTHOR(DRV_PROJECT);
	158	MODULE_VERSION(DRV_VERSION);
	159	MODULE_DESCRIPTION("rt2x00 soc library");
	160	MODULE_LICENSE("GPL");