1 /* 2 * Copyright 2019 Emmanuel Vadot <manu@freebsd.org> 3 * Copyright (c) 2017 Ian Lepore <ian@freebsd.org> All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #ifndef _MMC_FDT_HELPERS_H_ 31 #define _MMC_FDT_HELPERS_H_ 32 33 #include <dev/gpio/gpiobusvar.h> 34 #include <dev/ofw/ofw_bus.h> 35 36 #ifdef EXT_RESOURCES 37 #include <dev/extres/regulator/regulator.h> 38 #endif 39 40 struct mmc_fdt_helper { 41 device_t dev; 42 gpio_pin_t wp_pin; 43 gpio_pin_t cd_pin; 44 void * cd_ihandler; 45 struct resource * cd_ires; 46 int cd_irid; 47 void (*cd_handler)(device_t, bool); 48 struct timeout_task cd_delayed_task; 49 bool cd_disabled; 50 bool wp_disabled; 51 bool cd_present; 52 uint32_t props; 53 #define MMC_PROP_BROKEN_CD (1 << 0) 54 #define MMC_PROP_NON_REMOVABLE (1 << 1) 55 #define MMC_PROP_WP_INVERTED (1 << 2) 56 #define MMC_PROP_CD_INVERTED (1 << 3) 57 #define MMC_PROP_DISABLE_WP (1 << 4) 58 #define MMC_PROP_NO_SDIO (1 << 5) 59 #define MMC_PROP_NO_SD (1 << 6) 60 #define MMC_PROP_NO_MMC (1 << 7) 61 62 #ifdef EXT_RESOURCES 63 regulator_t vmmc_supply; 64 regulator_t vqmmc_supply; 65 #endif 66 67 device_t mmc_pwrseq; 68 }; 69 70 typedef void (*mmc_fdt_cd_handler)(device_t dev, bool present); 71 72 int mmc_fdt_parse(device_t dev, phandle_t node, struct mmc_fdt_helper *helper, struct mmc_host *host); 73 int mmc_fdt_gpio_setup(device_t dev, phandle_t node, struct mmc_fdt_helper *helper, mmc_fdt_cd_handler handler); 74 void mmc_fdt_gpio_teardown(struct mmc_fdt_helper *helper); 75 bool mmc_fdt_gpio_get_present(struct mmc_fdt_helper *helper); 76 bool mmc_fdt_gpio_get_readonly(struct mmc_fdt_helper *helper); 77 void mmc_fdt_set_power(struct mmc_fdt_helper *helper, enum mmc_power_mode power_mode); 78 79 #endif 80