xref: /linux/include/linux/mmc/slot-gpio.h (revision 564eb714f5f09ac733c26860d5f0831f213fbdf1)
1 /*
2  * Generic GPIO card-detect helper header
3  *
4  * Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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 version 2 as
8  * published by the Free Software Foundation.
9  */
10 
11 #ifndef MMC_SLOT_GPIO_H
12 #define MMC_SLOT_GPIO_H
13 
14 struct mmc_host;
15 
16 int mmc_gpio_get_ro(struct mmc_host *host);
17 int mmc_gpio_request_ro(struct mmc_host *host, unsigned int gpio);
18 void mmc_gpio_free_ro(struct mmc_host *host);
19 
20 int mmc_gpio_get_cd(struct mmc_host *host);
21 int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio,
22 			unsigned int debounce);
23 void mmc_gpio_free_cd(struct mmc_host *host);
24 
25 #endif
26