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 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
  19 int mmc_gpio_get_cd(struct mmc_host *host);
  20 int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio,
  21                         unsigned int debounce);
  22
  23 int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
  24                          unsigned int idx, bool override_active_level,
  25                          unsigned int debounce, bool *gpio_invert);
  26 int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
  27                          unsigned int idx, bool override_active_level,
  28                          unsigned int debounce, bool *gpio_invert);
  29 void mmc_gpio_set_cd_isr(struct mmc_host *host,
  30                          irqreturn_t (*isr)(int irq, void *dev_id));
  31 void mmc_gpiod_request_cd_irq(struct mmc_host *host);
  32 bool mmc_can_gpio_cd(struct mmc_host *host);
  33
  34 #endif