projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | |
| 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; | |
| ef8397cf GW |
43 | |
| 44 | iounmap(rt2x00dev->csr.base); | |
| 5d78d34b ID |
45 | } |
| 46 | ||
| 47 | static int rt2x00soc_alloc_reg(struct rt2x00_dev *rt2x00dev) | |
| 48 | { | |
| 49 | struct platform_device *pdev = to_platform_device(rt2x00dev->dev); | |
| 50 | struct resource *res; | |
| 51 | ||
| 52 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
| 53 | if (!res) | |
| 54 | return -ENODEV; | |
| 55 | ||
| ef8397cf | 56 | rt2x00dev->csr.base = ioremap(res->start, resource_size(res)); |
| 5d78d34b | 57 | if (!rt2x00dev->csr.base) |
| ef8397cf | 58 | return -ENOMEM; |
| 5d78d34b ID |
59 | |
| 60 | rt2x00dev->eeprom = kzalloc(rt2x00dev->ops->eeprom_size, GFP_KERNEL); | |
| 61 | if (!rt2x00dev->eeprom) | |
| 62 | goto exit; | |
| 63 | ||
| 64 | rt2x00dev->rf = kzalloc(rt2x00dev->ops->rf_size, GFP_KERNEL); | |
| 65 | if (!rt2x00dev->rf) | |
| 66 | goto exit; | |
| 67 | ||
| 68 | return 0; | |
| 69 | ||
| 70 | exit: | |
| ec9c4989 | 71 | rt2x00_probe_err("Failed to allocate registers\n"); |
| 5d78d34b ID |
72 | rt2x00soc_free_reg(rt2x00dev); |
| 73 | ||
| 74 | return -ENOMEM; | |
| 75 | } | |
| 76 | ||
| 714fa663 | 77 | int rt2x00soc_probe(struct platform_device *pdev, const struct rt2x00_ops *ops) |
| 5d78d34b ID |
78 | { |
| 79 | struct ieee80211_hw *hw; | |
| 80 | struct rt2x00_dev *rt2x00dev; | |
| 81 | int retval; | |
| 82 | ||
| 83 | hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw); | |
| 84 | if (!hw) { | |
| ec9c4989 | 85 | rt2x00_probe_err("Failed to allocate hardware\n"); |
| 5d78d34b ID |
86 | return -ENOMEM; |
| 87 | } | |
| 88 | ||
| 89 | platform_set_drvdata(pdev, hw); | |
| 90 | ||
| 91 | rt2x00dev = hw->priv; | |
| 92 | rt2x00dev->dev = &pdev->dev; | |
| 93 | rt2x00dev->ops = ops; | |
| 94 | rt2x00dev->hw = hw; | |
| 95 | rt2x00dev->irq = platform_get_irq(pdev, 0); | |
| 96 | rt2x00dev->name = pdev->dev.driver->name; | |
| 97 | ||
| cea90e55 | 98 | rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC); |
| 5d78d34b ID |
99 | |
| 100 | retval = rt2x00soc_alloc_reg(rt2x00dev); | |
| 101 | if (retval) | |
| 102 | goto exit_free_device; | |
| 103 | ||
| 104 | retval = rt2x00lib_probe_dev(rt2x00dev); | |
| 105 | if (retval) | |
| 106 | goto exit_free_reg; | |
| 107 | ||
| 108 | return 0; | |
| 109 | ||
| 110 | exit_free_reg: | |
| 111 | rt2x00soc_free_reg(rt2x00dev); | |
| 112 | ||
| 113 | exit_free_device: | |
| 114 | ieee80211_free_hw(hw); | |
| 115 | ||
| 116 | return retval; | |
| 117 | } | |
| 31f66be4 | 118 | EXPORT_SYMBOL_GPL(rt2x00soc_probe); |
| 5d78d34b ID |
119 | |
| 120 | int rt2x00soc_remove(struct platform_device *pdev) | |
| 121 | { | |
| 122 | struct ieee80211_hw *hw = platform_get_drvdata(pdev); | |
| 123 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
| 124 | ||
| 125 | /* | |
| 126 | * Free all allocated data. | |
| 127 | */ | |
| 128 | rt2x00lib_remove_dev(rt2x00dev); | |
| 129 | rt2x00soc_free_reg(rt2x00dev); | |
| 130 | ieee80211_free_hw(hw); | |
| 131 | ||
| 132 | return 0; | |
| 133 | } | |
| 134 | EXPORT_SYMBOL_GPL(rt2x00soc_remove); | |
| 135 | ||
| 136 | #ifdef CONFIG_PM | |
| 137 | int rt2x00soc_suspend(struct platform_device *pdev, pm_message_t state) | |
| 138 | { | |
| 139 | struct ieee80211_hw *hw = platform_get_drvdata(pdev); | |
| 140 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
| 141 | ||
| 142 | return rt2x00lib_suspend(rt2x00dev, state); | |
| 143 | } | |
| 144 | EXPORT_SYMBOL_GPL(rt2x00soc_suspend); | |
| 145 | ||
| 146 | int rt2x00soc_resume(struct platform_device *pdev) | |
| 147 | { | |
| 148 | struct ieee80211_hw *hw = platform_get_drvdata(pdev); | |
| 149 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
| 150 | ||
| 151 | return rt2x00lib_resume(rt2x00dev); | |
| 152 | } | |
| 153 | EXPORT_SYMBOL_GPL(rt2x00soc_resume); | |
| 154 | #endif /* CONFIG_PM */ | |
| 155 | ||
| 156 | /* | |
| 157 | * rt2x00soc module information. | |
| 158 | */ | |
| 159 | MODULE_AUTHOR(DRV_PROJECT); | |
| 160 | MODULE_VERSION(DRV_VERSION); | |
| 161 | MODULE_DESCRIPTION("rt2x00 soc library"); | |
| 162 | MODULE_LICENSE("GPL"); |