diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/hw/gpio.h')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/gpio.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/gpio.h b/drivers/gpu/drm/amd/display/dc/inc/hw/gpio.h new file mode 100644 index 0000000000..5253dc8b15 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/gpio.h @@ -0,0 +1,96 @@ +/* + * Copyright 2012-16 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + +#ifndef __DAL_GPIO_H__ +#define __DAL_GPIO_H__ + +#include "gpio_types.h" + + +union gpio_hw_container { + struct hw_ddc *ddc; + struct hw_generic *generic; + struct hw_hpd *hpd; +}; + +struct gpio { + struct gpio_service *service; + struct hw_gpio_pin *pin; + enum gpio_id id; + uint32_t en; + + union gpio_hw_container hw_container; + enum gpio_mode mode; + + /* when GPIO comes from VBIOS, it has defined output state */ + enum gpio_pin_output_state output_state; +}; + +#if 0 +struct gpio_funcs { + + struct hw_gpio_pin *(*create_ddc_data)( + struct dc_context *ctx, + enum gpio_id id, + uint32_t en); + struct hw_gpio_pin *(*create_ddc_clock)( + struct dc_context *ctx, + enum gpio_id id, + uint32_t en); + struct hw_gpio_pin *(*create_generic)( + struct dc_context *ctx, + enum gpio_id id, + uint32_t en); + struct hw_gpio_pin *(*create_hpd)( + struct dc_context *ctx, + enum gpio_id id, + uint32_t en); + struct hw_gpio_pin *(*create_gpio_pad)( + struct dc_context *ctx, + enum gpio_id id, + uint32_t en); + struct hw_gpio_pin *(*create_sync)( + struct dc_context *ctx, + enum gpio_id id, + uint32_t en); + struct hw_gpio_pin *(*create_gsl)( + struct dc_context *ctx, + enum gpio_id id, + uint32_t en); + + /* HW translation */ + bool (*offset_to_id)( + uint32_t offset, + uint32_t mask, + enum gpio_id *id, + uint32_t *en); + bool (*id_to_offset)( + enum gpio_id id, + uint32_t en, + struct gpio_pin_info *info); +}; +#endif + +#endif /* __DAL_GPIO__ */ |