1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ARCH_MCI_H 3 #define _ARCH_MCI_H 4 5 /** 6 * struct s3c24xx_mci_pdata - sd/mmc controller platform data 7 * @no_wprotect: Set this to indicate there is no write-protect switch. 8 * @no_detect: Set this if there is no detect switch. 9 * @wprotect_invert: Invert the default sense of the write protect switch. 10 * @detect_invert: Invert the default sense of the write protect switch. 11 * @use_dma: Set to allow the use of DMA. 12 * @gpio_detect: GPIO number for the card detect line. 13 * @gpio_wprotect: GPIO number for the write protect line. 14 * @ocr_avail: The mask of the available power states, non-zero to use. 15 * @set_power: Callback to control the power mode. 16 * 17 * The @gpio_detect is used for card detection when @no_wprotect is unset, 18 * and the default sense is that 0 returned from gpio_get_value() means 19 * that a card is inserted. If @detect_invert is set, then the value from 20 * gpio_get_value() is inverted, which makes 1 mean card inserted. 21 * 22 * The driver will use @gpio_wprotect to signal whether the card is write 23 * protected if @no_wprotect is not set. A 0 returned from gpio_get_value() 24 * means the card is read/write, and 1 means read-only. The @wprotect_invert 25 * will invert the value returned from gpio_get_value(). 26 * 27 * Card power is set by @ocr_availa, using MCC_VDD_ constants if it is set 28 * to a non-zero value, otherwise the default of 3.2-3.4V is used. 29 */ 30 struct s3c24xx_mci_pdata { 31 unsigned int no_wprotect:1; 32 unsigned int no_detect:1; 33 unsigned int wprotect_invert:1; 34 unsigned int detect_invert:1; /* set => detect active high */ 35 unsigned int use_dma:1; 36 37 unsigned int gpio_detect; 38 unsigned int gpio_wprotect; 39 unsigned long ocr_avail; 40 void (*set_power)(unsigned char power_mode, 41 unsigned short vdd); 42 }; 43 44 /** 45 * s3c24xx_mci_set_platdata - set platform data for mmc/sdi device 46 * @pdata: The platform data 47 * 48 * Copy the platform data supplied by @pdata so that this can be marked 49 * __initdata. 50 */ 51 extern void s3c24xx_mci_set_platdata(struct s3c24xx_mci_pdata *pdata); 52 53 #endif /* _ARCH_NCI_H */ 54