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94 lines
2.2 KiB
C
Executable file
94 lines
2.2 KiB
C
Executable file
/*
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* Copyright (c) 2018 naehrwert
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "gpio.h"
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#include "t210.h"
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static const u16 _gpio_cnf[31] = {
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0x000, 0x004, 0x008, 0x00C,
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0x100, 0x104, 0x108, 0x10C,
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0x200, 0x204, 0x208, 0x20C,
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0x300, 0x304, 0x308, 0x30C,
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0x400, 0x404, 0x408, 0x40C,
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0x500, 0x504, 0x508, 0x50C,
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0x600, 0x604, 0x608, 0x60C,
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0x700, 0x704, 0x708
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};
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static const u16 _gpio_oe[31] = {
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0x010, 0x014, 0x018, 0x01C,
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0x110, 0x114, 0x118, 0x11C,
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0x210, 0x214, 0x218, 0x21C,
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0x310, 0x314, 0x318, 0x31C,
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0x410, 0x414, 0x418, 0x41C,
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0x510, 0x514, 0x518, 0x51C,
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0x610, 0x614, 0x618, 0x61C,
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0x710, 0x714, 0x718
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};
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static const u16 _gpio_out[31] = {
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0x020, 0x024, 0x028, 0x02C,
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0x120, 0x124, 0x128, 0x12C,
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0x220, 0x224, 0x228, 0x22C,
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0x320, 0x324, 0x328, 0x32C,
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0x420, 0x424, 0x428, 0x42C,
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0x520, 0x524, 0x528, 0x52C,
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0x620, 0x624, 0x628, 0x62C,
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0x720, 0x724, 0x728
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};
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static const u16 _gpio_in[31] = {
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0x030, 0x034, 0x038, 0x03C,
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0x130, 0x134, 0x138, 0x13C,
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0x230, 0x234, 0x238, 0x23C,
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0x330, 0x334, 0x338, 0x33C,
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0x430, 0x434, 0x438, 0x43C,
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0x530, 0x534, 0x538, 0x53C,
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0x630, 0x634, 0x638, 0x63C,
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0x730, 0x734, 0x738
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};
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void gpio_config(u32 port, u32 pins, int mode)
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{
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if (mode)
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GPIO(_gpio_cnf[port]) |= pins;
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else
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GPIO(_gpio_cnf[port]) &= ~pins;
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(void)GPIO(_gpio_cnf[port]);
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}
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void gpio_output_enable(u32 port, u32 pins, int enable)
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{
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if (enable)
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GPIO(_gpio_oe[port]) |= pins;
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else
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GPIO(_gpio_oe[port]) &= ~pins;
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(void)GPIO(_gpio_oe[port]);
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}
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void gpio_write(u32 port, u32 pins, int high)
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{
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if (high)
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GPIO(_gpio_out[port]) |= pins;
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else
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GPIO(_gpio_out[port]) &= ~pins;
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(void)GPIO(_gpio_out[port]);
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}
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int gpio_read(u32 port, u32 pins)
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{
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return GPIO(_gpio_in[port]) & pins ? 1 : 0;
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}
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