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