blob: 19e684f8ffa11939f76a1cc443736d7126d6408c [file] [log] [blame]
Ivo van Doorn5d78d342009-10-15 21:38:19 +02001/*
Gertjan van Wingerde9c9a0d12009-11-08 16:39:55 +01002 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
3 Copyright (C) 2004 - 2009 Felix Fietkau <nbd@openwrt.org>
Ivo van Doorn5d78d342009-10-15 21:38:19 +02004 <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>
31
32#include "rt2x00.h"
33#include "rt2x00soc.h"
34
35static void rt2x00soc_free_reg(struct rt2x00_dev *rt2x00dev)
36{
37 kfree(rt2x00dev->rf);
38 rt2x00dev->rf = NULL;
39
40 kfree(rt2x00dev->eeprom);
41 rt2x00dev->eeprom = NULL;
42}
43
44static int rt2x00soc_alloc_reg(struct rt2x00_dev *rt2x00dev)
45{
46 struct platform_device *pdev = to_platform_device(rt2x00dev->dev);
47 struct resource *res;
48
49 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
50 if (!res)
51 return -ENODEV;
52
53 rt2x00dev->csr.base = (void __iomem *)KSEG1ADDR(res->start);
54 if (!rt2x00dev->csr.base)
55 goto exit;
56
57 rt2x00dev->eeprom = kzalloc(rt2x00dev->ops->eeprom_size, GFP_KERNEL);
58 if (!rt2x00dev->eeprom)
59 goto exit;
60
61 rt2x00dev->rf = kzalloc(rt2x00dev->ops->rf_size, GFP_KERNEL);
62 if (!rt2x00dev->rf)
63 goto exit;
64
65 return 0;
66
67exit:
68 ERROR_PROBE("Failed to allocate registers.\n");
69 rt2x00soc_free_reg(rt2x00dev);
70
71 return -ENOMEM;
72}
73
74int rt2x00soc_probe(struct platform_device *pdev,
75 const unsigned short chipset,
76 const struct rt2x00_ops *ops)
77{
78 struct ieee80211_hw *hw;
79 struct rt2x00_dev *rt2x00dev;
80 int retval;
81
82 hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
83 if (!hw) {
84 ERROR_PROBE("Failed to allocate hardware.\n");
85 return -ENOMEM;
86 }
87
88 platform_set_drvdata(pdev, hw);
89
90 rt2x00dev = hw->priv;
91 rt2x00dev->dev = &pdev->dev;
92 rt2x00dev->ops = ops;
93 rt2x00dev->hw = hw;
94 rt2x00dev->irq = platform_get_irq(pdev, 0);
95 rt2x00dev->name = pdev->dev.driver->name;
96
Gertjan van Wingerde2015d192009-11-08 12:30:14 +010097 /*
98 * SoC devices mimic PCI behavior.
99 */
100 rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_PCI);
101
Ivo van Doorn5d78d342009-10-15 21:38:19 +0200102 rt2x00_set_chip_rt(rt2x00dev, chipset);
103
104 retval = rt2x00soc_alloc_reg(rt2x00dev);
105 if (retval)
106 goto exit_free_device;
107
108 retval = rt2x00lib_probe_dev(rt2x00dev);
109 if (retval)
110 goto exit_free_reg;
111
112 return 0;
113
114exit_free_reg:
115 rt2x00soc_free_reg(rt2x00dev);
116
117exit_free_device:
118 ieee80211_free_hw(hw);
119
120 return retval;
121}
122
123int rt2x00soc_remove(struct platform_device *pdev)
124{
125 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
126 struct rt2x00_dev *rt2x00dev = hw->priv;
127
128 /*
129 * Free all allocated data.
130 */
131 rt2x00lib_remove_dev(rt2x00dev);
132 rt2x00soc_free_reg(rt2x00dev);
133 ieee80211_free_hw(hw);
134
135 return 0;
136}
137EXPORT_SYMBOL_GPL(rt2x00soc_remove);
138
139#ifdef CONFIG_PM
140int rt2x00soc_suspend(struct platform_device *pdev, pm_message_t state)
141{
142 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
143 struct rt2x00_dev *rt2x00dev = hw->priv;
144
145 return rt2x00lib_suspend(rt2x00dev, state);
146}
147EXPORT_SYMBOL_GPL(rt2x00soc_suspend);
148
149int rt2x00soc_resume(struct platform_device *pdev)
150{
151 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
152 struct rt2x00_dev *rt2x00dev = hw->priv;
153
154 return rt2x00lib_resume(rt2x00dev);
155}
156EXPORT_SYMBOL_GPL(rt2x00soc_resume);
157#endif /* CONFIG_PM */
158
159/*
160 * rt2x00soc module information.
161 */
162MODULE_AUTHOR(DRV_PROJECT);
163MODULE_VERSION(DRV_VERSION);
164MODULE_DESCRIPTION("rt2x00 soc library");
165MODULE_LICENSE("GPL");