관리-도구

편집 파일: mmc-s3cmci.h

/* SPDX-License-Identifier: GPL-2.0 */ #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. * @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 use_dma:1; unsigned long ocr_avail; void (*set_power)(unsigned char power_mode, unsigned short vdd); struct gpio_desc *bus[6]; }; /** * 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_def_set_power(unsigned char power_mode, unsigned short vdd); extern void s3c24xx_mci_set_platdata(struct s3c24xx_mci_pdata *pdata); #endif /* _ARCH_NCI_H */