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> | |
| 31 | ||
| 32 | #include "rt2x00.h" | |
| 33 | #include "rt2x00soc.h" | |
| 34 | ||
| 35 | static 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 | ||
| 44 | static 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 | ||
| 67 | exit: | |
| 68 | ERROR_PROBE("Failed to allocate registers.\n"); | |
| 69 | rt2x00soc_free_reg(rt2x00dev); | |
| 70 | ||
| 71 | return -ENOMEM; | |
| 72 | } | |
| 73 | ||
| 74 | int 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 | ||
| 2015d192 GW |
97 | /* |
| 98 | * SoC devices mimic PCI behavior. | |
| 99 | */ | |
| 100 | rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_PCI); | |
| 101 | ||
| 5d78d34b ID |
102 | 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 | ||
| 114 | exit_free_reg: | |
| 115 | rt2x00soc_free_reg(rt2x00dev); | |
| 116 | ||
| 117 | exit_free_device: | |
| 118 | ieee80211_free_hw(hw); | |
| 119 | ||
| 120 | return retval; | |
| 121 | } | |
| 122 | ||
| 123 | int 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 | } | |
| 137 | EXPORT_SYMBOL_GPL(rt2x00soc_remove); | |
| 138 | ||
| 139 | #ifdef CONFIG_PM | |
| 140 | int 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 | } | |
| 147 | EXPORT_SYMBOL_GPL(rt2x00soc_suspend); | |
| 148 | ||
| 149 | int 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 | } | |
| 156 | EXPORT_SYMBOL_GPL(rt2x00soc_resume); | |
| 157 | #endif /* CONFIG_PM */ | |
| 158 | ||
| 159 | /* | |
| 160 | * rt2x00soc module information. | |
| 161 | */ | |
| 162 | MODULE_AUTHOR(DRV_PROJECT); | |
| 163 | MODULE_VERSION(DRV_VERSION); | |
| 164 | MODULE_DESCRIPTION("rt2x00 soc library"); | |
| 165 | MODULE_LICENSE("GPL"); |