1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Generic GPIO card-detect helper header
4  *
5  * Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
6  */
7 
8 #ifndef MMC_SLOT_GPIO_H
9 #define MMC_SLOT_GPIO_H
10 
11 #include <linux/types.h>
12 #include <linux/irqreturn.h>
13 
14 struct mmc_host;
15 
16 int mmc_gpio_get_ro(struct mmc_host *host);
17 int mmc_gpio_get_cd(struct mmc_host *host);
18 int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
19 			 unsigned int idx, bool override_active_level,
20 			 unsigned int debounce);
21 int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
22 			 unsigned int idx, unsigned int debounce);
23 void mmc_gpio_set_cd_isr(struct mmc_host *host,
24 			 irqreturn_t (*isr)(int irq, void *dev_id));
25 int mmc_gpio_set_cd_wake(struct mmc_host *host, bool on);
26 void mmc_gpiod_request_cd_irq(struct mmc_host *host);
27 bool mmc_can_gpio_cd(struct mmc_host *host);
28 bool mmc_can_gpio_ro(struct mmc_host *host);
29 
30 #endif
31