Commit | Line | Data |
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5d78d34b | 1 | /* |
9c9a0d14 GW |
2 | Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com> |
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 | |
a05b8c58 | 17 | along with this program; if not, see <http://www.gnu.org/licenses/>. |
5d78d34b ID |
18 | */ |
19 | ||
20 | /* | |
21 | Module: rt2x00soc | |
22 | Abstract: rt2x00 generic soc device routines. | |
23 | */ | |
24 | ||
25 | #include <linux/bug.h> | |
26 | #include <linux/kernel.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/platform_device.h> | |
5a0e3ad6 | 29 | #include <linux/slab.h> |
5d78d34b ID |
30 | |
31 | #include "rt2x00.h" | |
32 | #include "rt2x00soc.h" | |
33 | ||
34 | static void rt2x00soc_free_reg(struct rt2x00_dev *rt2x00dev) | |
35 | { | |
36 | kfree(rt2x00dev->rf); | |
37 | rt2x00dev->rf = NULL; | |
38 | ||
39 | kfree(rt2x00dev->eeprom); | |
40 | rt2x00dev->eeprom = NULL; | |
ef8397cf GW |
41 | |
42 | iounmap(rt2x00dev->csr.base); | |
5d78d34b ID |
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 | ||
ef8397cf | 54 | rt2x00dev->csr.base = ioremap(res->start, resource_size(res)); |
5d78d34b | 55 | if (!rt2x00dev->csr.base) |
ef8397cf | 56 | return -ENOMEM; |
5d78d34b ID |
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: | |
ec9c4989 | 69 | rt2x00_probe_err("Failed to allocate registers\n"); |
5d78d34b ID |
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) { | |
ec9c4989 | 83 | rt2x00_probe_err("Failed to allocate hardware\n"); |
5d78d34b ID |
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"); |