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// SPDX-License-Identifier: GPL-2.0+
/*******************************************************************************
* QtMips - MIPS 32-bit Architecture Subset Simulator
*
* Implemented to support following courses:
*
* B35APO - Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b35apo
*
* B4M35PAP - Advanced Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
*
* Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
* Copyright (c) 2019 Pavel Pisa <pisa@cmp.felk.cvut.cz>
*
* Faculty of Electrical Engineering (http://www.fel.cvut.cz)
* Czech Technical University (http://www.cvut.cz/)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
******************************************************************************/
#include "peripspiled.h"
using namespace machine;
#define SPILED_REG_LED_LINE_o 0x004
#define SPILED_REG_LED_RGB1_o 0x010
#define SPILED_REG_LED_RGB2_o 0x014
#define SPILED_REG_LED_KBDWR_DIRECT_o 0x018
#define SPILED_REG_KBDRD_KNOBS_DIRECT_o 0x020
#define SPILED_REG_KNOBS_8BIT_o 0x024
PeripSpiLed::PeripSpiLed() {
spiled_reg_led_line = 0;
spiled_reg_led_rgb1 = 0;
spiled_reg_led_rgb2 = 0;
spiled_reg_led_kbdwr_direct = 0;
spiled_reg_kbdrd_knobs_direct = 0;
spiled_reg_knobs_8bit = 0;
}
PeripSpiLed::~PeripSpiLed() {
}
bool PeripSpiLed::wword(std::uint32_t address, std::uint32_t value) {
#if 0
printf("PeripSpiLed::wword address 0x%08lx data 0x%08lx\n",
(unsigned long)address, (unsigned long)value);
#endif
switch (address & ~3) {
case SPILED_REG_LED_LINE_o:
spiled_reg_led_line = value;
emit led_line_changed(value);
break;
case SPILED_REG_LED_RGB1_o:
spiled_reg_led_rgb1 = value;
emit led_rgb1_changed(value);
break;
case SPILED_REG_LED_RGB2_o:
spiled_reg_led_rgb2 = value;
emit led_rgb2_changed(value);
break;
default:
break;
}
emit write_notification(address, value);
return true;
}
std::uint32_t PeripSpiLed::rword(std::uint32_t address, bool debug_access) const {
(void)debug_access;
std::uint32_t value = 0x00000000;
switch (address & ~3) {
case SPILED_REG_LED_LINE_o:
value = spiled_reg_led_line;
break;
case SPILED_REG_LED_RGB1_o:
value = spiled_reg_led_rgb1;
break;
case SPILED_REG_LED_RGB2_o:
value = spiled_reg_led_rgb2;
break;
case SPILED_REG_LED_KBDWR_DIRECT_o:
value = spiled_reg_led_kbdwr_direct;
break;
case SPILED_REG_KBDRD_KNOBS_DIRECT_o:
value = spiled_reg_kbdrd_knobs_direct;
break;
case SPILED_REG_KNOBS_8BIT_o:
value = spiled_reg_knobs_8bit;
break;
default:
break;
}
emit read_notification(address, &value);
#if 0
printf("PeripSpiLed::rword address 0x%08lx value 0x%08lx\n",
(unsigned long)address, (unsigned long)value);
#endif
return value;
}
void PeripSpiLed::red_knob_update(int val) {
spiled_reg_knobs_8bit &= ~(0xff << 16);
spiled_reg_knobs_8bit |= (val & 0xff) << 16;
}
void PeripSpiLed::green_knob_update(int val) {
spiled_reg_knobs_8bit &= ~(0xff << 8);
spiled_reg_knobs_8bit |= (val & 0xff) << 8;
}
void PeripSpiLed::blue_knob_update(int val) {
spiled_reg_knobs_8bit &= ~(0xff << 0);
spiled_reg_knobs_8bit |= (val & 0xff) << 0;
}
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