Current File : //usr/src/kernels/3.10.0-957.21.3.el7.centos.plus.x86_64/include/linux/platform_data/mmc-s3cmci.h
#ifndef _ARCH_MCI_H
#define _ARCH_MCI_H
/**
* struct s3c24xx_mci_pdata - sd/mmc controller platform data
* @no_wprotect: Set this to indicate there is no write-protect switch.
* @no_detect: Set this if there is no detect switch.
* @wprotect_invert: Invert the default sense of the write protect switch.
* @detect_invert: Invert the default sense of the write protect switch.
* @use_dma: Set to allow the use of DMA.
* @gpio_detect: GPIO number for the card detect line.
* @gpio_wprotect: GPIO number for the write protect line.
* @ocr_avail: The mask of the available power states, non-zero to use.
* @set_power: Callback to control the power mode.
*
* The @gpio_detect is used for card detection when @no_wprotect is unset,
* and the default sense is that 0 returned from gpio_get_value() means
* that a card is inserted. If @detect_invert is set, then the value from
* gpio_get_value() is inverted, which makes 1 mean card inserted.
*
* The driver will use @gpio_wprotect to signal whether the card is write
* protected if @no_wprotect is not set. A 0 returned from gpio_get_value()
* means the card is read/write, and 1 means read-only. The @wprotect_invert
* will invert the value returned from gpio_get_value().
*
* Card power is set by @ocr_availa, using MCC_VDD_ constants if it is set
* to a non-zero value, otherwise the default of 3.2-3.4V is used.
*/
struct s3c24xx_mci_pdata {
unsigned int no_wprotect:1;
unsigned int no_detect:1;
unsigned int wprotect_invert:1;
unsigned int detect_invert:1; /* set => detect active high */
unsigned int use_dma:1;
unsigned int gpio_detect;
unsigned int gpio_wprotect;
unsigned long ocr_avail;
void (*set_power)(unsigned char power_mode,
unsigned short vdd);
};
/**
* s3c24xx_mci_set_platdata - set platform data for mmc/sdi device
* @pdata: The platform data
*
* Copy the platform data supplied by @pdata so that this can be marked
* __initdata.
*/
extern void s3c24xx_mci_set_platdata(struct s3c24xx_mci_pdata *pdata);
#endif /* _ARCH_NCI_H */
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