1 /* $NetBSD: gpio.h,v 1.2 2021/12/18 23:45:05 riastradh Exp $ */ 2 3 /* 4 * Copyright 2012-16 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: AMD 25 * 26 */ 27 28 #ifndef __DAL_GPIO_H__ 29 #define __DAL_GPIO_H__ 30 31 #include "gpio_types.h" 32 33 34 union gpio_hw_container { 35 struct hw_ddc *ddc; 36 struct hw_generic *generic; 37 struct hw_hpd *hpd; 38 }; 39 40 struct gpio { 41 struct gpio_service *service; 42 struct hw_gpio_pin *pin; 43 enum gpio_id id; 44 uint32_t en; 45 46 union gpio_hw_container hw_container; 47 enum gpio_mode mode; 48 49 /* when GPIO comes from VBIOS, it has defined output state */ 50 enum gpio_pin_output_state output_state; 51 }; 52 53 #if 0 54 struct gpio_funcs { 55 56 struct hw_gpio_pin *(*create_ddc_data)( 57 struct dc_context *ctx, 58 enum gpio_id id, 59 uint32_t en); 60 struct hw_gpio_pin *(*create_ddc_clock)( 61 struct dc_context *ctx, 62 enum gpio_id id, 63 uint32_t en); 64 struct hw_gpio_pin *(*create_generic)( 65 struct dc_context *ctx, 66 enum gpio_id id, 67 uint32_t en); 68 struct hw_gpio_pin *(*create_hpd)( 69 struct dc_context *ctx, 70 enum gpio_id id, 71 uint32_t en); 72 struct hw_gpio_pin *(*create_gpio_pad)( 73 struct dc_context *ctx, 74 enum gpio_id id, 75 uint32_t en); 76 struct hw_gpio_pin *(*create_sync)( 77 struct dc_context *ctx, 78 enum gpio_id id, 79 uint32_t en); 80 struct hw_gpio_pin *(*create_gsl)( 81 struct dc_context *ctx, 82 enum gpio_id id, 83 uint32_t en); 84 85 /* HW translation */ 86 bool (*offset_to_id)( 87 uint32_t offset, 88 uint32_t mask, 89 enum gpio_id *id, 90 uint32_t *en); 91 bool (*id_to_offset)( 92 enum gpio_id id, 93 uint32_t en, 94 struct gpio_pin_info *info); 95 }; 96 #endif 97 98 #endif /* __DAL_GPIO__ */ 99