[bsp/es32f0654] add adc driver

bsp/es32f0654/.config

@@ -364,6 +364,11 @@ CONFIG_BSP_USING_UART2=y
 #
 # CONFIG_BSP_USING_PM is not set
 
+#
+# ADC Drivers
+#
+# CONFIG_BSP_USING_ADC is not set
+
 #
 # Onboard Peripheral Drivers
 #

bsp/es32f0654/README.md

@@ -44,6 +44,7 @@ ES-PDS-ES32F0654-V1.1
 | TIMER             |     支持     | TIMER0/1/2/3                         |
 | RTC               |     支持     | RTC                                  |
 | PM                |     支持     | Power Management                     |
+| ADC               |     支持     | ADC0                                 |
 
 ### 1.2  注意事项
 

bsp/es32f0654/drivers/Kconfig

@@ -116,6 +116,13 @@ menu "Hardware Drivers Config"
                 default n
         endmenu
 
+        menu "ADC Drivers"
+            config BSP_USING_ADC
+                bool "Using ADC"
+                select RT_USING_ADC
+                default n
+        endmenu
+
     endmenu
 
     menu "Onboard Peripheral Drivers"

bsp/es32f0654/drivers/SConscript

@@ -43,6 +43,10 @@ if GetDepend(['BSP_USING_RTC']):
 if GetDepend(['BSP_USING_PM']):
     src += ['drv_pm.c']
 
+# add adc driver code
+if GetDepend(['BSP_USING_ADC']):
+    src += ['drv_adc.c']
+
 CPPPATH = [cwd]
 group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
 

bsp/es32f0654/drivers/drv_adc.c

@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author        Notes
+ * 2019-04-03     wangyq        the first version
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+#include <rtdevice.h>
+#include "board.h"
+#include "drv_adc.h"
+#include <ald_gpio.h>
+#include <ald_adc.h>
+
+#ifdef RT_USING_ADC
+
+/* define adc instance */
+static struct rt_adc_device _device_adc0;
+
+/* enable or disable adc */
+static rt_err_t es32f0_adc_enabled(struct rt_adc_device *device, rt_uint32_t channel, rt_bool_t enabled)
+{
+    adc_handle_t *_hadc = (adc_handle_t *)device->parent.user_data;
+
+    RT_ASSERT(device != RT_NULL);
+
+    if (enabled)
+    {
+        ADC_ENABLE(_hadc); ;
+    }
+    else
+    {
+        ADC_DISABLE(_hadc);
+    }
+
+    return RT_EOK;
+}
+
+static adc_channel_t es32f0_adc_get_channel(rt_uint32_t channel)
+{
+    adc_channel_t es32f0_channel;
+    gpio_init_t gpio_initstruct;
+
+    /* Initialize ADC pin */
+    gpio_initstruct.mode = GPIO_MODE_INPUT;
+    gpio_initstruct.pupd = GPIO_FLOATING;
+    gpio_initstruct.odrv = GPIO_OUT_DRIVE_NORMAL;
+    gpio_initstruct.flt  = GPIO_FILTER_DISABLE;
+    gpio_initstruct.type = GPIO_TYPE_CMOS;
+    gpio_initstruct.func = GPIO_FUNC_0;
+
+    /* select gpio pin as adc function */
+    switch (channel)
+    {
+    case  0:
+        es32f0_channel = ADC_CHANNEL_0;
+        gpio_init(GPIOC, GPIO_PIN_0, &gpio_initstruct);
+        break;
+    case  1:
+        es32f0_channel = ADC_CHANNEL_1;
+        gpio_init(GPIOC, GPIO_PIN_1, &gpio_initstruct);
+        break;
+    case  2:
+        es32f0_channel = ADC_CHANNEL_2;
+        gpio_init(GPIOC, GPIO_PIN_2, &gpio_initstruct);
+        break;
+    case  3:
+        es32f0_channel = ADC_CHANNEL_3;
+        gpio_init(GPIOC, GPIO_PIN_3, &gpio_initstruct);
+        break;
+    case  4:
+        es32f0_channel = ADC_CHANNEL_4;
+        gpio_init(GPIOA, GPIO_PIN_0, &gpio_initstruct);
+        break;
+    case  5:
+        es32f0_channel = ADC_CHANNEL_5;
+        gpio_init(GPIOA, GPIO_PIN_1, &gpio_initstruct);
+        break;
+    case  6:
+        es32f0_channel = ADC_CHANNEL_6;
+        gpio_init(GPIOA, GPIO_PIN_2, &gpio_initstruct);
+        break;
+    case  7:
+        es32f0_channel = ADC_CHANNEL_7;
+        gpio_init(GPIOA, GPIO_PIN_3, &gpio_initstruct);
+        break;
+    case  8:
+        es32f0_channel = ADC_CHANNEL_8;
+        gpio_init(GPIOA, GPIO_PIN_4, &gpio_initstruct);
+        break;
+    case  9:
+        es32f0_channel = ADC_CHANNEL_9;
+        gpio_init(GPIOA, GPIO_PIN_5, &gpio_initstruct);
+        break;
+    case 10:
+        es32f0_channel = ADC_CHANNEL_10;
+        gpio_init(GPIOA, GPIO_PIN_6, &gpio_initstruct);
+        break;
+    case 11:
+        es32f0_channel = ADC_CHANNEL_11;
+        gpio_init(GPIOA, GPIO_PIN_7, &gpio_initstruct);
+        break;
+    case 12:
+        es32f0_channel = ADC_CHANNEL_12;
+        gpio_init(GPIOC, GPIO_PIN_4, &gpio_initstruct);
+        break;
+    case 13:
+        es32f0_channel = ADC_CHANNEL_13;
+        gpio_init(GPIOC, GPIO_PIN_5, &gpio_initstruct);
+        break;
+    case 14:
+        es32f0_channel = ADC_CHANNEL_14;
+        gpio_init(GPIOB, GPIO_PIN_0, &gpio_initstruct);
+        break;
+    case 15:
+        es32f0_channel = ADC_CHANNEL_15;
+        gpio_init(GPIOB, GPIO_PIN_1, &gpio_initstruct);
+        break;
+    case 16:
+        es32f0_channel = ADC_CHANNEL_16;
+        break;
+    case 17:
+        es32f0_channel = ADC_CHANNEL_17;
+        break;
+    case 18:
+        es32f0_channel = ADC_CHANNEL_18;
+        break;
+    default:
+        break;
+    }
+
+    return es32f0_channel;
+}
+
+static rt_err_t es32f0_get_adc_value(struct rt_adc_device *device, rt_uint32_t channel, rt_uint32_t *value)
+{
+    adc_handle_t *_hadc = (adc_handle_t *)device->parent.user_data;
+    adc_channel_conf_t nm_config;
+
+    RT_ASSERT(device != RT_NULL);
+    RT_ASSERT(value != RT_NULL);
+
+    /* config adc channel */
+    nm_config.channel       = es32f0_adc_get_channel(channel);
+    nm_config.rank          = ADC_NC_RANK_1;
+    nm_config.sampling_time = ADC_SAMPLETIME_4;
+    adc_normal_channel_config(_hadc, &nm_config);
+
+    adc_normal_start(_hadc);
+
+    if (adc_normal_poll_for_conversion(_hadc, 5000) == OK)
+        *value = adc_normal_get_value(_hadc);
+
+    return RT_EOK;
+}
+
+static const struct rt_adc_ops es32f0_adc_ops =
+{
+    es32f0_adc_enabled,
+    es32f0_get_adc_value,
+};
+
+int rt_hw_adc_init(void)
+{
+    int result = RT_EOK;
+    static adc_handle_t _h_adc0;
+
+    /* adc function initialization */
+    _h_adc0.perh = ADC0;
+    _h_adc0.init.data_align = ADC_DATAALIGN_RIGHT;
+    _h_adc0.init.scan_mode = ADC_SCAN_DISABLE;
+    _h_adc0.init.cont_mode = DISABLE;
+    _h_adc0.init.conv_nbr = ADC_NM_NBR_1;
+    _h_adc0.init.disc_mode = DISABLE;
+    _h_adc0.init.disc_nbr = ADC_DISC_NBR_1;
+    _h_adc0.init.conv_res = ADC_CONV_RES_10;
+    _h_adc0.init.clk_div = ADC_CKDIV_128;
+    _h_adc0.init.nche_mode = ADC_NCHESEL_MODE_ALL;
+    _h_adc0.init.neg_ref = ADC_NEG_REF_VSS;
+    _h_adc0.init.pos_ref = ADC_POS_REF_VDD;
+    adc_init(&_h_adc0);
+
+    rt_hw_adc_register(&_device_adc0, "adc0", &es32f0_adc_ops, &_h_adc0);
+
+    return result;
+}
+INIT_BOARD_EXPORT(rt_hw_adc_init);
+
+#endif

bsp/es32f0654/drivers/drv_adc.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author        Notes
+ * 2019-04-03     wangyq        the first version
+ */
+
+#ifndef DRV_ADC_H__
+#define DRV_ADC_H__
+
+int rt_hw_adc_init(void);
+
+#endif

bsp/es32f0654/rtconfig.h

@@ -181,6 +181,9 @@
 /* PM Drivers */
 
 
+/* ADC Drivers */
+
+
 /* Onboard Peripheral Drivers */