dc/gpio/hw_hpd.h

0001 /*
0002  * Copyright 2012-15 Advanced Micro Devices, Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: AMD
0023  *
0024  */
0025
0026 #ifndef __DAL_HW_HPD_H__
0027 #define __DAL_HW_HPD_H__
0028
0029 #include "hpd_regs.h"
0030
0031 struct hw_hpd {
0032     struct hw_gpio base;
0033     const struct hpd_registers *regs;
0034     const struct hpd_sh_mask *shifts;
0035     const struct hpd_sh_mask *masks;
0036 };
0037
0038 #define HW_HPD_FROM_BASE(hw_gpio) \
0039     container_of((HW_GPIO_FROM_BASE(hw_gpio)), struct hw_hpd, base)
0040
0041 void dal_hw_hpd_init(
0042     struct hw_hpd **hw_hpd,
0043     struct dc_context *ctx,
0044     enum gpio_id id,
0045     uint32_t en);
0046
0047 struct hw_gpio_pin *dal_hw_hpd_get_pin(struct gpio *gpio);
0048
0049 #endif