4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18 * Copyright (C) 2005 Texas Instruments Incorporated
19 * Copyright (C) 2008 Google Inc
20 * Copyright (C) 2009 Bob Copeland (me@bobcopeland.com)
22 #include <linux/module.h>
23 #include <linux/mod_devicetable.h>
24 #include <linux/mmc/sdio_func.h>
25 #include <linux/mmc/sdio_ids.h>
29 #ifndef SDIO_VENDOR_ID_TI
30 #define SDIO_VENDOR_ID_TI 0x104c
33 #ifndef SDIO_DEVICE_ID_TI_WL1251
34 #define SDIO_DEVICE_ID_TI_WL1251 0x9066
37 static struct sdio_func *wl_to_func(struct wl1251 *wl)
42 static void wl1251_sdio_interrupt(struct sdio_func *func)
44 struct wl1251 *wl = sdio_get_drvdata(func);
46 wl1251_debug(DEBUG_IRQ, "IRQ");
48 /* FIXME should be synchronous for sdio */
49 ieee80211_queue_work(wl->hw, &wl->irq_work);
52 static const struct sdio_device_id wl1251_devices[] = {
53 { SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1251) },
56 MODULE_DEVICE_TABLE(sdio, wl1251_devices);
59 static void wl1251_sdio_read(struct wl1251 *wl, int addr,
60 void *buf, size_t len)
63 struct sdio_func *func = wl_to_func(wl);
65 sdio_claim_host(func);
66 ret = sdio_memcpy_fromio(func, buf, addr, len);
68 wl1251_error("sdio read failed (%d)", ret);
69 sdio_release_host(func);
72 static void wl1251_sdio_write(struct wl1251 *wl, int addr,
73 void *buf, size_t len)
76 struct sdio_func *func = wl_to_func(wl);
78 sdio_claim_host(func);
79 ret = sdio_memcpy_toio(func, addr, buf, len);
81 wl1251_error("sdio write failed (%d)", ret);
82 sdio_release_host(func);
85 static void wl1251_sdio_reset(struct wl1251 *wl)
89 static void wl1251_sdio_enable_irq(struct wl1251 *wl)
91 struct sdio_func *func = wl_to_func(wl);
93 sdio_claim_host(func);
94 sdio_claim_irq(func, wl1251_sdio_interrupt);
95 sdio_release_host(func);
98 static void wl1251_sdio_disable_irq(struct wl1251 *wl)
100 struct sdio_func *func = wl_to_func(wl);
102 sdio_claim_host(func);
103 sdio_release_irq(func);
104 sdio_release_host(func);
107 static void wl1251_sdio_set_power(bool enable)
111 static const struct wl1251_if_operations wl1251_sdio_ops = {
112 .read = wl1251_sdio_read,
113 .write = wl1251_sdio_write,
114 .reset = wl1251_sdio_reset,
115 .enable_irq = wl1251_sdio_enable_irq,
116 .disable_irq = wl1251_sdio_disable_irq,
119 static int wl1251_sdio_probe(struct sdio_func *func,
120 const struct sdio_device_id *id)
124 struct ieee80211_hw *hw;
126 hw = wl1251_alloc_hw();
132 sdio_claim_host(func);
133 ret = sdio_enable_func(func);
137 sdio_set_block_size(func, 512);
139 SET_IEEE80211_DEV(hw, &func->dev);
141 wl->if_ops = &wl1251_sdio_ops;
142 wl->set_power = wl1251_sdio_set_power;
144 sdio_release_host(func);
145 ret = wl1251_init_ieee80211(wl);
149 sdio_set_drvdata(func, wl);
153 sdio_claim_host(func);
154 sdio_disable_func(func);
156 sdio_release_host(func);
160 static void __devexit wl1251_sdio_remove(struct sdio_func *func)
162 struct wl1251 *wl = sdio_get_drvdata(func);
166 sdio_claim_host(func);
167 sdio_release_irq(func);
168 sdio_disable_func(func);
169 sdio_release_host(func);
172 static struct sdio_driver wl1251_sdio_driver = {
173 .name = "wl1251_sdio",
174 .id_table = wl1251_devices,
175 .probe = wl1251_sdio_probe,
176 .remove = __devexit_p(wl1251_sdio_remove),
179 static int __init wl1251_sdio_init(void)
183 err = sdio_register_driver(&wl1251_sdio_driver);
185 wl1251_error("failed to register sdio driver: %d", err);
189 static void __exit wl1251_sdio_exit(void)
191 sdio_unregister_driver(&wl1251_sdio_driver);
192 wl1251_notice("unloaded");
195 module_init(wl1251_sdio_init);
196 module_exit(wl1251_sdio_exit);
198 MODULE_LICENSE("GPL");
199 MODULE_AUTHOR("Kalle Valo <kalle.valo@nokia.com>");