[ab32vg1] add irda support
This commit is contained in:
greedyhao
parent
c44e5165be
commit
ada0570b47
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@ -23,7 +23,12 @@ CONFIG_IDLE_THREAD_STACK_SIZE=512
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CONFIG_RT_USING_TIMER_SOFT=y
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CONFIG_RT_TIMER_THREAD_PRIO=4
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CONFIG_RT_TIMER_THREAD_STACK_SIZE=256
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#
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# kservice optimization
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#
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# CONFIG_RT_KSERVICE_USING_STDLIB is not set
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# CONFIG_RT_KSERVICE_USING_TINY_SIZE is not set
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CONFIG_RT_DEBUG=y
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# CONFIG_RT_DEBUG_COLOR is not set
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# CONFIG_RT_DEBUG_INIT_CONFIG is not set
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@ -545,6 +550,7 @@ CONFIG_BSP_USING_UART0=y
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# CONFIG_BSP_USING_TIM is not set
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# CONFIG_BSP_USING_ONCHIP_RTC is not set
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# CONFIG_BSP_USING_ADC is not set
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# CONFIG_BSP_USING_IRRX is not set
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#
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# Board extended module Drivers
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@ -34,7 +34,7 @@ ab32vg1-prougen 是 中科蓝讯(Bluetrum) 推出的一款基于 RISC-V 内核
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| :----------- | :----------: | :---------------------------------------- |
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| USB 转串口 | 支持 | |
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| SD卡 | 支持 | |
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| IRDA | 即将支持 | |
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| IRDA | 支持 | |
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| 音频接口 | 支持 | 支持音频输出 |
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| **片上外设** | **支持情况** | **备注** |
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| GPIO | 支持 | PA PB PE PF |
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@ -192,6 +192,18 @@ menu "On-chip Peripheral Drivers"
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default y
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endif
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menuconfig BSP_USING_IRRX
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bool "Enable IRRX(HW or SW)"
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default n
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if BSP_USING_IRRX
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config BSP_USING_IRRX_HW
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bool "Enable hardware IRRX"
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default y
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config BSP_USING_IRRX_SW
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bool "Enable software IRRX"
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default n
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endif
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endmenu
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menu "Board extended module Drivers"
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@ -19,6 +19,9 @@
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#define RT_USING_TIMER_SOFT
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#define RT_TIMER_THREAD_PRIO 4
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#define RT_TIMER_THREAD_STACK_SIZE 256
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/* kservice optimization */
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#define RT_DEBUG
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/* Inter-Thread communication */
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@ -34,6 +34,9 @@ if GetDepend('RT_USING_RTC'):
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if GetDepend('RT_USING_ADC'):
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src += ['drv_adc.c']
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if GetDepend('BSP_USING_IRRX'):
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src += ['drv_irrx.c']
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group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path)
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objs = [group]
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@ -0,0 +1,219 @@
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/*
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* Copyright (c) 2020-2021, Bluetrum Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-04-12 greedyhao first version
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*/
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#include <board.h>
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#ifdef BSP_USING_IRRX
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//#define DRV_DEBUG
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#define LOG_TAG "drv.irrx"
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#include <drv_log.h>
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#ifdef BSP_USING_TIM3
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#error "IRRX is conflict with hardware timer3!"
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#endif
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#ifdef BSP_USING_IRRX_HW
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///硬件IR receiver参数
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#define IR32KSEL_EN 0 //IR clock source select 32K
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#if IR32KSEL_EN
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#define RPTERR_CNT 33 //配置11.25ms ± (RPTERR_CNT + 1)*32K的repeat code允许范围
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#define DATERR_CNT 33 //配置13.5ms ± (DATERR_CNT + 1)*32K引导码允许范围
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#define ONEERR_CNT 7 //配置2.25ms ± (ONEERR_CNT + 1)*32K的logic "1"允许范围
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#define ZEROERR_CNT 3 //配置1.12ms ± (ONEERR_CNT + 1)*32K数logic "0"允许范围
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#define TOPR_CNT 55 //IR time out length = (TOPR + 1) * 64 *32K
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#else
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#define RPTERR_CNT 1000 //配置11.25ms ± (RPTERR_CNT + 1)us的repeat code允许范围
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#define DATERR_CNT 1000 //配置13.5ms ± (DATERR_CNT + 1)us引导码允许范围
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#define ONEERR_CNT 250 //配置2.25ms ± (ONEERR_CNT + 1)us的logic "1"允许范围
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#define ZEROERR_CNT 125 //配置1.12ms ± (ONEERR_CNT + 1)us数logic "0"允许范围
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#define TOPR_CNT 1718 //IR time out length = (TOPR + 1) * 64 us
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#endif // IR32KSEL_EN
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#endif // BSP_USING_IRRX_HW
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#define NO_KEY (0u)
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struct ab32_irrx_data{
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uint16_t cnt; //ir data bit counter
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uint16_t rpt_cnt; //ir repeat counter
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uint16_t addr; //address, inverted address Extended NEC: 16bits address
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uint16_t cmd; //command, inverted command
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};
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typedef struct ab32_irrx_data *ab32_irrx_data_t;
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static struct ab32_irrx_data _irrx = {0};
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/**
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* @brief A non-zero value is returned
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* when IR key is detectedto be pressed.
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*
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* @param addr inverted address Extended NEC: 16bits address
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* @param cmd inverted command
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*/
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RT_SECTION(".irq.irrx")
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uint8_t ab32_get_irkey(uint16_t *addr, uint16_t *cmd)
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{
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if (_irrx.cnt != 32) {
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return NO_KEY;
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}
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if (addr != RT_NULL) {
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*addr = _irrx.addr;
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}
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if (cmd != RT_NULL) {
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*cmd = _irrx.cmd;
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}
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return !NO_KEY;
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}
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/**
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* @brief Invalid the current IR key.
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*
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*/
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void ab32_clr_irkey(void)
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{
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_irrx.cnt = 0;
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}
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#ifdef BSP_USING_IRRX_HW
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RT_SECTION(".irq.irrx")
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static void irrx_isr(int vector, void *param)
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{
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rt_interrupt_enter();
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//IR RX data finish interrupt
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if (IRRXCON & BIT(16)) {
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IRRXCPND = BIT(16);
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_irrx.addr = (uint16_t)IRRXDAT;
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_irrx.cmd = (uint16_t)(IRRXDAT >> 16);
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_irrx.cnt = 32;
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}
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//IR key release interrupt
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if (IRRXCON & BIT(17)) {
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IRRXCPND = BIT(17);
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_irrx.cnt = 0;
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}
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rt_interrupt_leave();
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}
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static void _irrx_hw_init(void)
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{
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GPIOEDE |= BIT(6);
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GPIOEPU |= BIT(6);
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GPIOEDIR |= BIT(6);
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FUNCMCON2 |= 0xf << 20;
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FUNCMCON2 |= (7 << 20); //IR mapping to G6
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rt_memset(&_irrx, 0, sizeof(_irrx));
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IRRXERR0 = (RPTERR_CNT << 16) | DATERR_CNT; //RPTERR[27:16], DATERR[11:0]
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IRRXERR1 = (TOPR_CNT << 20) | (ONEERR_CNT << 10) | ZEROERR_CNT; //TOPR[31:20], ONEERR[19:10], ZEROERR[9:0]
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#if IR32KSEL_EN
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CLKCON1 &= ~BIT(5);
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CLKCON1 |= BIT(4); //enable 26M分频32K
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IRRXCON |= BIT(3); //ir clock source select 32K
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#endif // IR32KSEL_EN
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rt_hw_interrupt_install(IRQ_IRRX_VECTOR, irrx_isr, RT_NULL, "irrx_isr");
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IRRXCON = 0x03;
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// LOG_D("IRRXCON:%08x", IRRXCON);
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}
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#endif
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#ifdef BSP_USING_IRRX_SW
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#define TMR3_RCLK (1000u) //xosc26m_div 1M
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RT_SECTION(".irq.irrx")
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static void irrx_isr(int vector, void *param)
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{
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rt_uint32_t tmrcnt;
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if (TMR3CON & BIT(17)) {
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//timer1 capture interrupt
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TMR3CNT = TMR3CNT - TMR3CPT;
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tmrcnt = TMR3CPT;
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TMR3CPND = BIT(17);
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tmrcnt /= TMR3_RCLK; //convert to ms
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} else if (TMR3CON & BIT(16)){
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//timer1 overflow interrupt
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TMR3CPND = BIT(16);
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tmrcnt = 110; //110ms overflow
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} else {
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return;
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}
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//processing repeat code
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if (_irrx.cnt == 32) {
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if ((tmrcnt >= 10) && (tmrcnt <= 12)) {
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//repeat code is simply 9ms+2.25ms
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_irrx.rpt_cnt = 0;
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} else {
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_irrx.rpt_cnt += tmrcnt;
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if (_irrx.rpt_cnt > 108) {
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_irrx.rpt_cnt = 0;
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_irrx.cnt = 0; //ir key release
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}
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}
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return;
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} else if ((tmrcnt > 7) || (tmrcnt == 0)) { //A message is started by a 9ms AGC burst
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_irrx.rpt_cnt = 0;
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_irrx.cnt = 0; //ir key message started
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return;
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}
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_irrx.cmd >>= 1;
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_irrx.cnt++;
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if (tmrcnt == 2) { //Bit time of 1.125ms(0) or 2.25ms(1)
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_irrx.cmd |= 0x8000;
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}
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if (_irrx.cnt == 16) {
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_irrx.addr = _irrx.cmd; //save address data
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} else if (_irrx.cnt == 32) {
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//got ir key message
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if ((rt_uint8_t)_irrx.cmd > 96) {
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_irrx.cmd = NO_KEY;
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}
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}
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}
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static void timer3_init(void)
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{
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rt_hw_interrupt_install(IRQ_IRRX_VECTOR, irrx_isr, RT_NULL, "irrx_isr");
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TMR3CNT = 0;
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TMR3PR = TMR3_RCLK*110 - 1; //110ms Timer overflow interrupt
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TMR3CON = BIT(8) | BIT(7) | BIT(5) | BIT(2) | BIT(1) | BIT(0); //capture & overflow interrupt enable, falling edge, Capture Mode
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}
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static void _irrx_hw_init(void)
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{
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GPIOEDE |= BIT(6);
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GPIOEPU |= BIT(6);
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GPIOEDIR |= BIT(6);
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FUNCMCON2 |= 0xf << 4;
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FUNCMCON2 |= (7 << 4); // timer3 G6 PE6 capture
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rt_memset(&_irrx, 0, sizeof(_irrx));
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timer3_init();
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}
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#endif
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static int ab32_irrx_init(void)
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{
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_irrx_hw_init();
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LOG_D("irrx init success");
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return RT_EOK;
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}
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INIT_BOARD_EXPORT(ab32_irrx_init);
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#endif
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