[bsp/es32f0334] add rtc driver

bsp/es32f0334/.config

@@ -352,6 +352,11 @@ CONFIG_BSP_USING_UART1=y
 # CONFIG_BSP_USING_HWTIMER2 is not set
 # CONFIG_BSP_USING_HWTIMER3 is not set
 
+#
+# RTC Drivers
+#
+# CONFIG_BSP_USING_RTC is not set
+
 #
 # Onboard Peripheral Drivers
 #

bsp/es32f0334/README.md

@@ -43,6 +43,7 @@ ES-PDS-ES32F0334-V1.1
 | I2C               |     支持     | I2C0/1                               |
 | PWM               |     支持     | PWM0/1/2/3                           |
 | TIMER             |     支持     | TIMER0/1/2/3                         |
+| RTC               |     支持     | RTC                                  |
 
 更多详细信息请咨询[上海东软载波微电子技术支持](http://www.essemi.com/)
 

bsp/es32f0334/drivers/Kconfig

@@ -88,6 +88,13 @@ menu "Hardware Drivers Config"
                 default n
         endmenu
 
+        menu "RTC Drivers"
+            config BSP_USING_RTC
+                bool "Using RTC"
+                select RT_USING_RTC
+                default n
+        endmenu
+
     endmenu
 
     menu "Onboard Peripheral Drivers"

bsp/es32f0334/drivers/SConscript

@@ -35,6 +35,10 @@ if GetDepend('BSP_USING_PWM0') or GetDepend('BSP_USING_PWM1') or GetDepend('BSP_
 if GetDepend('BSP_USING_HWTIMER0') or GetDepend('BSP_USING_HWTIMER1') or GetDepend('BSP_USING_HWTIMER2') or GetDepend('BSP_USING_HWTIMER3'):
     src += ['drv_hwtimer.c']
 
+# add rtc driver code
+if GetDepend(['BSP_USING_RTC']):
+    src += ['drv_rtc.c']
+
 CPPPATH = [cwd]
 group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
 

bsp/es32f0334/drivers/drv_rtc.c

@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2019-04-01     wangyq       the first version
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+#include <rtdevice.h>
+#include <string.h>
+#include "board.h"
+#include "drv_rtc.h"
+#include <ald_cmu.h>
+#include <ald_rtc.h>
+
+#ifdef RT_USING_RTC
+
+static void rtc_init(rtc_init_t *init)
+{
+    assert_param(IS_RTC_HOUR_FORMAT(init->hour_format));
+    assert_param(IS_RTC_OUTPUT_SEL(init->output));
+    assert_param(IS_RTC_OUTPUT_POLARITY(init->output_polarity));
+
+    rtc_reset();
+    RTC_UNLOCK();
+
+    MODIFY_REG(RTC->CON, RTC_CON_HFM_MSK, init->hour_format << RTC_CON_HFM_POS);
+    MODIFY_REG(RTC->CON, RTC_CON_EOS_MSK, init->output << RTC_CON_EOS_POSS);
+    MODIFY_REG(RTC->CON, RTC_CON_POL_MSK, init->output_polarity << RTC_CON_POL_POS);
+    MODIFY_REG(RTC->PSR, RTC_PSR_SPRS_MSK, init->synch_pre_div << RTC_PSR_SPRS_POSS);
+    MODIFY_REG(RTC->PSR, RTC_PSR_APRS_MSK, init->asynch_pre_div << RTC_PSR_APRS_POSS);
+
+    RTC_LOCK();
+    return;
+}
+
+static rt_err_t es32f0_rtc_control(rt_device_t dev, int cmd, void *args)
+{
+    rt_err_t result = RT_EOK;
+
+    struct tm time_temp;
+    struct tm *pNow;
+    rtc_date_t date;
+    rtc_time_t time;
+
+    switch (cmd)
+    {
+    case RT_DEVICE_CTRL_RTC_GET_TIME:
+
+        rtc_get_date_time(&date, &time, RTC_FORMAT_DEC);
+        time_temp.tm_sec = time.second;
+        time_temp.tm_min = time.minute;
+        time_temp.tm_hour = time.hour;
+        time_temp.tm_mday = date.day;
+        time_temp.tm_mon = date.month - 1;
+        time_temp.tm_year = date.year - 1900 + 2000;
+        *((time_t *)args) = mktime(&time_temp);
+        break;
+
+    case RT_DEVICE_CTRL_RTC_SET_TIME:
+
+        rt_enter_critical();
+        /* converts calendar time time into local time. */
+        pNow = localtime((const time_t *)args);
+        /* copy the statically located variable */
+        memcpy(&time_temp, pNow, sizeof(struct tm));
+        /* unlock scheduler. */
+        rt_exit_critical();
+
+        time.hour = time_temp.tm_hour;
+        time.minute = time_temp.tm_min;
+        time.second = time_temp.tm_sec;
+        date.year = time_temp.tm_year + 1900 - 2000;
+        date.month = time_temp.tm_mon + 1;
+        date.day = time_temp.tm_mday;
+        rtc_set_time(&time, RTC_FORMAT_DEC);
+        rtc_set_date(&date, RTC_FORMAT_DEC);
+        /* start RTC */
+        RTC_UNLOCK();
+        SET_BIT(RTC->CON, RTC_CON_GO_MSK);
+        RTC_LOCK();
+        break;
+
+    case RT_DEVICE_CTRL_RTC_GET_ALARM:
+        break;
+
+    case RT_DEVICE_CTRL_RTC_SET_ALARM:
+        break;
+
+    default:
+        break;
+    }
+
+    return result;
+}
+
+#ifdef RT_USING_DEVICE_OPS
+const static struct rt_device_ops es32f0_rtc_ops =
+{
+    RT_NULL,
+    RT_NULL,
+    RT_NULL,
+    RT_NULL,
+    RT_NULL,
+    es32f0_rtc_control
+};
+#endif
+
+int rt_hw_rtc_init(void)
+{
+    rt_err_t ret = RT_EOK;
+    static struct rt_device rtc_dev;
+    rtc_init_t rtc_initstruct;
+
+    /* enable external 32.768kHz */
+    CMU_LOSC_ENABLE();
+    cmu_losc_safe_config(ENABLE);
+    /* set default time */
+    RTC_UNLOCK();
+    WRITE_REG(RTC->TIME, 0x134251);
+    WRITE_REG(RTC->DATE, 0x1190401);
+    RTC_LOCK();
+    /* RTC function initialization */
+    rtc_initstruct.hour_format = RTC_HOUR_FORMAT_24;
+    rtc_initstruct.asynch_pre_div = 0;
+    rtc_initstruct.synch_pre_div = 32767;
+    rtc_initstruct.output = RTC_OUTPUT_DISABLE;
+    rtc_init(&rtc_initstruct);
+
+    rtc_dev.type = RT_Device_Class_RTC;
+    rtc_dev.rx_indicate = RT_NULL;
+    rtc_dev.tx_complete = RT_NULL;
+
+#ifdef RT_USING_DEVICE_OPS
+    rtc_dev.ops = &es32f0_rtc_ops;
+#else
+    rtc_dev.init = RT_NULL;
+    rtc_dev.open = RT_NULL;
+    rtc_dev.close = RT_NULL;
+    rtc_dev.read = RT_NULL;
+    rtc_dev.write = RT_NULL;
+    rtc_dev.control = es32f0_rtc_control;
+#endif
+
+    rtc_dev.user_data = RTC;
+
+    ret = rt_device_register(&rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR);
+
+    return ret;
+}
+INIT_DEVICE_EXPORT(rt_hw_rtc_init);
+
+#endif

bsp/es32f0334/drivers/drv_rtc.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2019-04-01     wangyq       the first version
+ */
+
+#ifndef DRV_RTC_H__
+#define DRV_RTC_H__
+
+int rt_hw_rtc_init(void);
+
+#endif

bsp/es32f0334/libraries/SConscript

@@ -10,18 +10,17 @@ src = []
 
 src += Glob('ES32F033x_ALD_StdPeriph_Driver/Source/*.c')
 
-
 #add for startup script 
 if rtconfig.CROSS_TOOL == 'gcc':
      src = src + ['CMSIS/Device/EastSoft/es32f033x/Startup/gcc/startup_es32f033x.s']
 elif rtconfig.CROSS_TOOL == 'keil':
      src = src + ['CMSIS/Device/EastSoft/es32f033x/Startup/keil/startup_es32f033x.s']
 elif rtconfig.CROSS_TOOL == 'iar':
-    src = src + ['CMSIS/Device/EastSoft/es32f033x/Startup/iar/startup_es32f033x.s']
+     src = src + ['CMSIS/Device/EastSoft/es32f033x/Startup/iar/startup_es32f033x.s']
 
-path = [cwd + '/CMSIS/Device/EastSoft/es32f033x/Include', 
-    cwd + '/CMSIS/Include',
-    cwd + '/ES32F033x_ALD_StdPeriph_Driver/Include']
+path = [cwd + '/CMSIS/Device/EastSoft/es32f033x/Include',
+        cwd + '/CMSIS/Include',
+        cwd + '/ES32F033x_ALD_StdPeriph_Driver/Include']
 
 group = DefineGroup('Libraries', src, depend = [''], CPPPATH = path)
 

bsp/es32f0334/rtconfig.h

@@ -175,6 +175,9 @@
 /* HWtimer Drivers */
 
 
+/* RTC Drivers */
+
+
 /* Onboard Peripheral Drivers */
 
 

bsp/es32f0334/rtconfig.py

@@ -46,7 +46,7 @@ if PLATFORM == 'gcc':
     DEVICE = ' -mcpu=' + CPU + ' -mthumb -ffunction-sections -fdata-sections'
     CFLAGS = DEVICE + ' -std=c99'
     AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -Wa,-mimplicit-it=thumb'
-    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,Reset_Handler -T board/linker_scripts/link.lds'
+    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,Reset_Handler -T drivers/linker_scripts/link.lds'
 
     CPATH = ''
     LPATH = ''