include/linux/mmc/slot-gpio.h

   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 void mmc_gpiod_request_cd_irq(struct mmc_host *host);
  35 bool mmc_can_gpio_cd(struct mmc_host *host);
  36 bool mmc_can_gpio_ro(struct mmc_host *host);
  37
  38 #endif