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 * @use_dma: Set to allow the use of DMA. 11 * @gpio_detect: GPIO number for the card detect line. 12 * @gpio_wprotect: GPIO number for the write protect line. 13 * @ocr_avail: The mask of the available power states, non-zero to use. 14 * @set_power: Callback to control the power mode. 15 * 16 * The @gpio_detect is used for card detection when @no_wprotect is unset, 17 * and the default sense is that 0 returned from gpio_get_value() means 18 * that a card is inserted. If @detect_invert is set, then the value from 19 * gpio_get_value() is inverted, which makes 1 mean card inserted. 20 * 21 * The driver will use @gpio_wprotect to signal whether the card is write 22 * protected if @no_wprotect is not set. A 0 returned from gpio_get_value() 23 * means the card is read/write, and 1 means read-only. The @wprotect_invert 24 * will invert the value returned from gpio_get_value(). 25 * 26 * Card power is set by @ocr_availa, using MCC_VDD_ constants if it is set 27 * to a non-zero value, otherwise the default of 3.2-3.4V is used. 28 */ 29 struct s3c24xx_mci_pdata { 30 unsigned int no_wprotect:1; 31 unsigned int no_detect:1; 32 unsigned int wprotect_invert:1; 33 unsigned int use_dma:1; 34 35 unsigned long ocr_avail; 36 void (*set_power)(unsigned char power_mode, 37 unsigned short vdd); 38 struct gpio_desc *bus[6]; 39 }; 40 41 /** 42 * s3c24xx_mci_set_platdata - set platform data for mmc/sdi device 43 * @pdata: The platform data 44 * 45 * Copy the platform data supplied by @pdata so that this can be marked 46 * __initdata. 47 */ 48 extern void s3c24xx_mci_def_set_power(unsigned char power_mode, unsigned short vdd); 49 extern void s3c24xx_mci_set_platdata(struct s3c24xx_mci_pdata *pdata); 50 51 #endif /* _ARCH_NCI_H */ 52
