From ada0570b474653e665d40b74b3ce0b3916811853 Mon Sep 17 00:00:00 2001 From: greedyhao Date: Tue, 13 Apr 2021 10:28:47 +0800 Subject: [PATCH] [ab32vg1] add irda support --- bsp/bluetrum/ab32vg1-ab-prougen/.config | 6 + bsp/bluetrum/ab32vg1-ab-prougen/README.md | 2 +- bsp/bluetrum/ab32vg1-ab-prougen/board/Kconfig | 12 + bsp/bluetrum/ab32vg1-ab-prougen/rtconfig.h | 3 + bsp/bluetrum/libraries/hal_drivers/SConscript | 3 + bsp/bluetrum/libraries/hal_drivers/drv_irrx.c | 219 ++++++++++++++++++ 6 files changed, 244 insertions(+), 1 deletion(-) create mode 100644 bsp/bluetrum/libraries/hal_drivers/drv_irrx.c diff --git a/bsp/bluetrum/ab32vg1-ab-prougen/.config b/bsp/bluetrum/ab32vg1-ab-prougen/.config index 5e9bfa2384..9c2fe998a6 100644 --- a/bsp/bluetrum/ab32vg1-ab-prougen/.config +++ b/bsp/bluetrum/ab32vg1-ab-prougen/.config @@ -23,7 +23,12 @@ CONFIG_IDLE_THREAD_STACK_SIZE=512 CONFIG_RT_USING_TIMER_SOFT=y CONFIG_RT_TIMER_THREAD_PRIO=4 CONFIG_RT_TIMER_THREAD_STACK_SIZE=256 + +# +# kservice optimization +# # CONFIG_RT_KSERVICE_USING_STDLIB is not set +# CONFIG_RT_KSERVICE_USING_TINY_SIZE is not set CONFIG_RT_DEBUG=y # CONFIG_RT_DEBUG_COLOR is not set # CONFIG_RT_DEBUG_INIT_CONFIG is not set @@ -545,6 +550,7 @@ CONFIG_BSP_USING_UART0=y # CONFIG_BSP_USING_TIM is not set # CONFIG_BSP_USING_ONCHIP_RTC is not set # CONFIG_BSP_USING_ADC is not set +# CONFIG_BSP_USING_IRRX is not set # # Board extended module Drivers diff --git a/bsp/bluetrum/ab32vg1-ab-prougen/README.md b/bsp/bluetrum/ab32vg1-ab-prougen/README.md index c108ff57ba..8950f880aa 100644 --- a/bsp/bluetrum/ab32vg1-ab-prougen/README.md +++ b/bsp/bluetrum/ab32vg1-ab-prougen/README.md @@ -34,7 +34,7 @@ ab32vg1-prougen 是 中科蓝讯(Bluetrum) 推出的一款基于 RISC-V 内核 | :----------- | :----------: | :---------------------------------------- | | USB 转串口 | 支持 | | | SD卡 | 支持 | | -| IRDA | 即将支持 | | +| IRDA | 支持 | | | 音频接口 | 支持 | 支持音频输出 | | **片上外设** | **支持情况** | **备注** | | GPIO | 支持 | PA PB PE PF | diff --git a/bsp/bluetrum/ab32vg1-ab-prougen/board/Kconfig b/bsp/bluetrum/ab32vg1-ab-prougen/board/Kconfig index 89e651a996..22f6484f73 100644 --- a/bsp/bluetrum/ab32vg1-ab-prougen/board/Kconfig +++ b/bsp/bluetrum/ab32vg1-ab-prougen/board/Kconfig @@ -192,6 +192,18 @@ menu "On-chip Peripheral Drivers" default y endif + menuconfig BSP_USING_IRRX + bool "Enable IRRX(HW or SW)" + default n + if BSP_USING_IRRX + config BSP_USING_IRRX_HW + bool "Enable hardware IRRX" + default y + config BSP_USING_IRRX_SW + bool "Enable software IRRX" + default n + endif + endmenu menu "Board extended module Drivers" diff --git a/bsp/bluetrum/ab32vg1-ab-prougen/rtconfig.h b/bsp/bluetrum/ab32vg1-ab-prougen/rtconfig.h index f2fa939c6e..6defaad7dc 100644 --- a/bsp/bluetrum/ab32vg1-ab-prougen/rtconfig.h +++ b/bsp/bluetrum/ab32vg1-ab-prougen/rtconfig.h @@ -19,6 +19,9 @@ #define RT_USING_TIMER_SOFT #define RT_TIMER_THREAD_PRIO 4 #define RT_TIMER_THREAD_STACK_SIZE 256 + +/* kservice optimization */ + #define RT_DEBUG /* Inter-Thread communication */ diff --git a/bsp/bluetrum/libraries/hal_drivers/SConscript b/bsp/bluetrum/libraries/hal_drivers/SConscript index 8544a2aef4..628252c231 100644 --- a/bsp/bluetrum/libraries/hal_drivers/SConscript +++ b/bsp/bluetrum/libraries/hal_drivers/SConscript @@ -34,6 +34,9 @@ if GetDepend('RT_USING_RTC'): if GetDepend('RT_USING_ADC'): src += ['drv_adc.c'] +if GetDepend('BSP_USING_IRRX'): + src += ['drv_irrx.c'] + group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path) objs = [group] diff --git a/bsp/bluetrum/libraries/hal_drivers/drv_irrx.c b/bsp/bluetrum/libraries/hal_drivers/drv_irrx.c new file mode 100644 index 0000000000..8ccb2a3d7c --- /dev/null +++ b/bsp/bluetrum/libraries/hal_drivers/drv_irrx.c @@ -0,0 +1,219 @@ +/* + * Copyright (c) 2020-2021, Bluetrum Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2021-04-12 greedyhao first version + */ + +#include + +#ifdef BSP_USING_IRRX + +//#define DRV_DEBUG +#define LOG_TAG "drv.irrx" +#include + +#ifdef BSP_USING_TIM3 +#error "IRRX is conflict with hardware timer3!" +#endif + +#ifdef BSP_USING_IRRX_HW +///硬件IR receiver参数 +#define IR32KSEL_EN 0 //IR clock source select 32K +#if IR32KSEL_EN + #define RPTERR_CNT 33 //配置11.25ms ± (RPTERR_CNT + 1)*32K的repeat code允许范围 + #define DATERR_CNT 33 //配置13.5ms ± (DATERR_CNT + 1)*32K引导码允许范围 + #define ONEERR_CNT 7 //配置2.25ms ± (ONEERR_CNT + 1)*32K的logic "1"允许范围 + #define ZEROERR_CNT 3 //配置1.12ms ± (ONEERR_CNT + 1)*32K数logic "0"允许范围 + #define TOPR_CNT 55 //IR time out length = (TOPR + 1) * 64 *32K +#else + #define RPTERR_CNT 1000 //配置11.25ms ± (RPTERR_CNT + 1)us的repeat code允许范围 + #define DATERR_CNT 1000 //配置13.5ms ± (DATERR_CNT + 1)us引导码允许范围 + #define ONEERR_CNT 250 //配置2.25ms ± (ONEERR_CNT + 1)us的logic "1"允许范围 + #define ZEROERR_CNT 125 //配置1.12ms ± (ONEERR_CNT + 1)us数logic "0"允许范围 + #define TOPR_CNT 1718 //IR time out length = (TOPR + 1) * 64 us +#endif // IR32KSEL_EN +#endif // BSP_USING_IRRX_HW + +#define NO_KEY (0u) + +struct ab32_irrx_data{ + uint16_t cnt; //ir data bit counter + uint16_t rpt_cnt; //ir repeat counter + uint16_t addr; //address, inverted address Extended NEC: 16bits address + uint16_t cmd; //command, inverted command +}; +typedef struct ab32_irrx_data *ab32_irrx_data_t; + +static struct ab32_irrx_data _irrx = {0}; + +/** + * @brief A non-zero value is returned + * when IR key is detectedto be pressed. + * + * @param addr inverted address Extended NEC: 16bits address + * @param cmd inverted command + */ +RT_SECTION(".irq.irrx") +uint8_t ab32_get_irkey(uint16_t *addr, uint16_t *cmd) +{ + if (_irrx.cnt != 32) { + return NO_KEY; + } + if (addr != RT_NULL) { + *addr = _irrx.addr; + } + if (cmd != RT_NULL) { + *cmd = _irrx.cmd; + } + return !NO_KEY; +} + +/** + * @brief Invalid the current IR key. + * + */ +void ab32_clr_irkey(void) +{ + _irrx.cnt = 0; +} + +#ifdef BSP_USING_IRRX_HW +RT_SECTION(".irq.irrx") +static void irrx_isr(int vector, void *param) +{ + rt_interrupt_enter(); + + //IR RX data finish interrupt + if (IRRXCON & BIT(16)) { + IRRXCPND = BIT(16); + _irrx.addr = (uint16_t)IRRXDAT; + _irrx.cmd = (uint16_t)(IRRXDAT >> 16); + _irrx.cnt = 32; + } + + //IR key release interrupt + if (IRRXCON & BIT(17)) { + IRRXCPND = BIT(17); + _irrx.cnt = 0; + } + + rt_interrupt_leave(); +} + +static void _irrx_hw_init(void) +{ + GPIOEDE |= BIT(6); + GPIOEPU |= BIT(6); + GPIOEDIR |= BIT(6); + FUNCMCON2 |= 0xf << 20; + FUNCMCON2 |= (7 << 20); //IR mapping to G6 + rt_memset(&_irrx, 0, sizeof(_irrx)); + + IRRXERR0 = (RPTERR_CNT << 16) | DATERR_CNT; //RPTERR[27:16], DATERR[11:0] + IRRXERR1 = (TOPR_CNT << 20) | (ONEERR_CNT << 10) | ZEROERR_CNT; //TOPR[31:20], ONEERR[19:10], ZEROERR[9:0] + +#if IR32KSEL_EN + CLKCON1 &= ~BIT(5); + CLKCON1 |= BIT(4); //enable 26M分频32K + IRRXCON |= BIT(3); //ir clock source select 32K +#endif // IR32KSEL_EN + + rt_hw_interrupt_install(IRQ_IRRX_VECTOR, irrx_isr, RT_NULL, "irrx_isr"); + IRRXCON = 0x03; + + // LOG_D("IRRXCON:%08x", IRRXCON); +} +#endif + +#ifdef BSP_USING_IRRX_SW + +#define TMR3_RCLK (1000u) //xosc26m_div 1M + +RT_SECTION(".irq.irrx") +static void irrx_isr(int vector, void *param) +{ + rt_uint32_t tmrcnt; + + if (TMR3CON & BIT(17)) { + //timer1 capture interrupt + TMR3CNT = TMR3CNT - TMR3CPT; + tmrcnt = TMR3CPT; + TMR3CPND = BIT(17); + tmrcnt /= TMR3_RCLK; //convert to ms + } else if (TMR3CON & BIT(16)){ + //timer1 overflow interrupt + TMR3CPND = BIT(16); + tmrcnt = 110; //110ms overflow + } else { + return; + } + + //processing repeat code + if (_irrx.cnt == 32) { + if ((tmrcnt >= 10) && (tmrcnt <= 12)) { + //repeat code is simply 9ms+2.25ms + _irrx.rpt_cnt = 0; + } else { + _irrx.rpt_cnt += tmrcnt; + if (_irrx.rpt_cnt > 108) { + _irrx.rpt_cnt = 0; + _irrx.cnt = 0; //ir key release + } + } + return; + } else if ((tmrcnt > 7) || (tmrcnt == 0)) { //A message is started by a 9ms AGC burst + _irrx.rpt_cnt = 0; + _irrx.cnt = 0; //ir key message started + return; + } + + _irrx.cmd >>= 1; + _irrx.cnt++; + if (tmrcnt == 2) { //Bit time of 1.125ms(0) or 2.25ms(1) + _irrx.cmd |= 0x8000; + } + + if (_irrx.cnt == 16) { + _irrx.addr = _irrx.cmd; //save address data + } else if (_irrx.cnt == 32) { + //got ir key message + if ((rt_uint8_t)_irrx.cmd > 96) { + _irrx.cmd = NO_KEY; + } + } +} + +static void timer3_init(void) +{ + rt_hw_interrupt_install(IRQ_IRRX_VECTOR, irrx_isr, RT_NULL, "irrx_isr"); + TMR3CNT = 0; + TMR3PR = TMR3_RCLK*110 - 1; //110ms Timer overflow interrupt + TMR3CON = BIT(8) | BIT(7) | BIT(5) | BIT(2) | BIT(1) | BIT(0); //capture & overflow interrupt enable, falling edge, Capture Mode +} + +static void _irrx_hw_init(void) +{ + GPIOEDE |= BIT(6); + GPIOEPU |= BIT(6); + GPIOEDIR |= BIT(6); + FUNCMCON2 |= 0xf << 4; + FUNCMCON2 |= (7 << 4); // timer3 G6 PE6 capture + rt_memset(&_irrx, 0, sizeof(_irrx)); + + timer3_init(); +} +#endif + +static int ab32_irrx_init(void) +{ + _irrx_hw_init(); + LOG_D("irrx init success"); + return RT_EOK; +} +INIT_BOARD_EXPORT(ab32_irrx_init); + +#endif