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_read_elp(struct wl1251 *wl, int addr, u32 *val)
88 struct sdio_func *func = wl_to_func(wl);
90 sdio_claim_host(func);
91 *val = sdio_readb(func, addr, &ret);
92 sdio_release_host(func);
95 wl1251_error("sdio_readb failed (%d)", ret);
98 static void wl1251_sdio_write_elp(struct wl1251 *wl, int addr, u32 val)
101 struct sdio_func *func = wl_to_func(wl);
103 sdio_claim_host(func);
104 sdio_writeb(func, val, addr, &ret);
105 sdio_release_host(func);
108 wl1251_error("sdio_writeb failed (%d)", ret);
111 static void wl1251_sdio_reset(struct wl1251 *wl)
115 static void wl1251_sdio_enable_irq(struct wl1251 *wl)
117 struct sdio_func *func = wl_to_func(wl);
119 sdio_claim_host(func);
120 sdio_claim_irq(func, wl1251_sdio_interrupt);
121 sdio_release_host(func);
124 static void wl1251_sdio_disable_irq(struct wl1251 *wl)
126 struct sdio_func *func = wl_to_func(wl);
128 sdio_claim_host(func);
129 sdio_release_irq(func);
130 sdio_release_host(func);
133 static void wl1251_sdio_set_power(bool enable)
137 static const struct wl1251_if_operations wl1251_sdio_ops = {
138 .read = wl1251_sdio_read,
139 .write = wl1251_sdio_write,
140 .write_elp = wl1251_sdio_write_elp,
141 .read_elp = wl1251_sdio_read_elp,
142 .reset = wl1251_sdio_reset,
143 .enable_irq = wl1251_sdio_enable_irq,
144 .disable_irq = wl1251_sdio_disable_irq,
147 static int wl1251_sdio_probe(struct sdio_func *func,
148 const struct sdio_device_id *id)
152 struct ieee80211_hw *hw;
154 hw = wl1251_alloc_hw();
160 sdio_claim_host(func);
161 ret = sdio_enable_func(func);
165 sdio_set_block_size(func, 512);
167 SET_IEEE80211_DEV(hw, &func->dev);
169 wl->if_ops = &wl1251_sdio_ops;
170 wl->set_power = wl1251_sdio_set_power;
172 sdio_release_host(func);
173 ret = wl1251_init_ieee80211(wl);
177 sdio_set_drvdata(func, wl);
181 sdio_claim_host(func);
182 sdio_disable_func(func);
184 sdio_release_host(func);
188 static void __devexit wl1251_sdio_remove(struct sdio_func *func)
190 struct wl1251 *wl = sdio_get_drvdata(func);
194 sdio_claim_host(func);
195 sdio_release_irq(func);
196 sdio_disable_func(func);
197 sdio_release_host(func);
200 static struct sdio_driver wl1251_sdio_driver = {
201 .name = "wl1251_sdio",
202 .id_table = wl1251_devices,
203 .probe = wl1251_sdio_probe,
204 .remove = __devexit_p(wl1251_sdio_remove),
207 static int __init wl1251_sdio_init(void)
211 err = sdio_register_driver(&wl1251_sdio_driver);
213 wl1251_error("failed to register sdio driver: %d", err);
217 static void __exit wl1251_sdio_exit(void)
219 sdio_unregister_driver(&wl1251_sdio_driver);
220 wl1251_notice("unloaded");
223 module_init(wl1251_sdio_init);
224 module_exit(wl1251_sdio_exit);
226 MODULE_LICENSE("GPL");
227 MODULE_AUTHOR("Kalle Valo <kalle.valo@nokia.com>");