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 #include <linux/types.h>
15 #include <linux/irqreturn.h>
16 
17 struct mmc_host;
18 
19 int mmc_gpio_get_ro(struct mmc_host *host);
20 int mmc_gpio_request_ro(struct mmc_host *host, unsigned int gpio);
21 
22 int mmc_gpio_get_cd(struct mmc_host *host);
23 int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio,
24 			unsigned int debounce);
25 
26 int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
27 			 unsigned int idx, bool override_active_level,
28 			 unsigned int debounce, bool *gpio_invert);
29 int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
30 			 unsigned int idx, bool override_active_level,
31 			 unsigned int debounce, bool *gpio_invert);
32 void mmc_gpio_set_cd_isr(struct mmc_host *host,
33 			 irqreturn_t (*isr)(int irq, void *dev_id));
34 int mmc_gpio_set_cd_wake(struct mmc_host *host, bool on);
35 void mmc_gpiod_request_cd_irq(struct mmc_host *host);
36 bool mmc_can_gpio_cd(struct mmc_host *host);
37 bool mmc_can_gpio_ro(struct mmc_host *host);
38 
39 #endif
40