RRH62000支持的传感器驱动很多，上一次仅仅是添加完了温度传感器，这次将剩余的rrh62000传感器接口添加上去。下面是传感器支持的功能列表。
相对应的，rtthread目前支持的传感器列表如下：
#define RT_SENSOR_CLASS_ACCE (1) /* Accelerometer */ #define RT_SENSOR_CLASS_GYRO (2) /* Gyroscope */ #define RT_SENSOR_CLASS_MAG (3) /* Magnetometer */ #define RT_SENSOR_CLASS_TEMP (4) /* Temperature */ #define RT_SENSOR_CLASS_HUMI (5) /* Relative Humidity */ #define RT_SENSOR_CLASS_BARO (6) /* Barometer */ #define RT_SENSOR_CLASS_LIGHT (7) /* Ambient light */ #define RT_SENSOR_CLASS_PROXIMITY (8) /* Proximity */ #define RT_SENSOR_CLASS_HR (9) /* Heart Rate */ #define RT_SENSOR_CLASS_TVOC (10) /* TVOC Level */ #define RT_SENSOR_CLASS_NOISE (11) /* Noise Loudness */ #define RT_SENSOR_CLASS_STEP (12) /* Step sensor */ #define RT_SENSOR_CLASS_FORCE (13) /* Force sensor */ #define RT_SENSOR_CLASS_DUST (14) /* Dust sensor */ #define RT_SENSOR_CLASS_ECO2 (15) /* eCO2 sensor */ #define RT_SENSOR_CLASS_GNSS (16) /* GPS/GNSS sensor */ #define RT_SENSOR_CLASS_TOF (17) /* TOF sensor */ #define RT_SENSOR_CLASS_SPO2 (18) /* SpO2 sensor */ #define RT_SENSOR_CLASS_IAQ (19) /* IAQ sensor. */ #define RT_SENSOR_CLASS_ETOH (20) /* EtOH sensor. */ #define RT_SENSOR_CLASS_BP (21) /* Blood Pressure */
从这里面看，如果不动RTT的传感器支持列表（不往里面新增），在不考虑功能重复的情况下，RRH62000至少可以添加6种传感器。除去之前添加的温度传感器，还能添加的有，灰尘传感器（规格书中提到的PMxxx，NCxxx总共9种），湿度传感器，总挥发性有机化合物传感器，二氧化碳传感器，空气质量传感器。
由于开源项目部分暂时不适合动中间框架层的代码，因此灰尘传感器部分就只上报一个参数上去，若有需求，内部项目在框架层添加传感器种类并在驱动层将剩余功能添加上。
代码修改
前面已经贴过所有的部分了，这里仅仅贴修改的部分。
drv_rrh62000.c
代码修改其实就一个套路，增加一种传感器的注册，并在读数据接口中根据传感器种类上报对应数据。由于传感器框架存在我一直认为不合理的地方，就是如果传感器是以模组形式存在，那目前的传感器框架分别读传感器内容时，就会出现每次读都要跑去运行一遍总线的情况。这极大地增加了系统地开销。
static rt_ssize_t _get_data(rt_sensor_t sensor, struct rt_sensor_data *data)
{
struct sensor_device *dev = sensor->parent.user_data;
rt_bool_t isDataReady = RT_FALSE;
switch(sensor->info.type)
{
case RT_SENSOR_CLASS_TEMP:
case RT_SENSOR_CLASS_HUMI:
case RT_SENSOR_CLASS_TVOC:
case RT_SENSOR_CLASS_ECO2:
case RT_SENSOR_CLASS_IAQ:
case RT_SENSOR_CLASS_DUST:
if((rrh62000_read_data_status(dev->dev, &isDataReady) == RT_EOK) && (isDataReady))
{
rrh62000_read_measured_value(dev->dev, &dev->data);
}
break;
default:
return 0;
}
switch(sensor->info.type)
{
case RT_SENSOR_CLASS_TEMP:
data->data.temp = (dev->data.temperature.integer_part << 16) + dev->data.temperature.decimal_part;
break;
case RT_SENSOR_CLASS_HUMI:
data->data.temp = (dev->data.humidity.integer_part << 16) + dev->data.humidity.decimal_part;
break;
case RT_SENSOR_CLASS_TVOC:
data->data.temp = (dev->data.tvoc.integer_part << 16) + dev->data.tvoc.decimal_part;
break;
case RT_SENSOR_CLASS_ECO2:
data->data.temp = (dev->data.eco2.integer_part << 16) + dev->data.eco2.decimal_part;
break;
case RT_SENSOR_CLASS_IAQ:
data->data.temp = (dev->data.iaq.integer_part << 16) + dev->data.iaq.decimal_part;
break;
case RT_SENSOR_CLASS_DUST:
data->data.temp = (dev->data.nc_2p5.integer_part << 16) + dev->data.nc_2p5.decimal_part;
break;
default:
goto RET;
break;
}
data->timestamp = rt_sensor_get_ts();
return 1;
RET:
return 0;
}
#ifdef BSP_USING_RRH62000_TEMP
rt_err_t rrh62000_register_temperature(const char *name, struct rt_sensor_config *cfg, struct sensor_device *dev)
{
rt_sensor_t sensor = RT_NULL;
rt_int8_t result;
/* sensor register */
sensor = rt_calloc(1, sizeof(struct rt_sensor_device));
if (sensor == RT_NULL)
goto __exit;
sensor->info.type = RT_SENSOR_CLASS_TEMP; // Set real type
sensor->info.vendor = RT_SENSOR_VENDOR_UNKNOWN; // Set real vendor
sensor->info.model = name; // set real model name
sensor->info.unit = RT_SENSOR_UNIT_DCELSIUS; // set to real unit flag
sensor->info.intf_type = RT_SENSOR_INTF_I2C; // Set interface type
sensor->info.range_max = 0xFFFF; // Set to range max
sensor->info.range_min = 0x0000; // Set to range min
sensor->info.period_min = 50; // Set frequency
rt_memcpy(&sensor->config, cfg, sizeof(struct rt_sensor_config));
sensor->ops = &sensor_ops;
result = rt_hw_sensor_register(sensor, name, RT_DEVICE_FLAG_RDONLY, dev);
if (result != RT_EOK)
{
goto __exit;
}
return RT_EOK;
__exit:
if (sensor)
rt_free(sensor);
return -RT_ERROR;
}
#endif
#ifdef BSP_USING_RRH62000_HUMI
rt_err_t rrh62000_register_humidity(const char *name, struct rt_sensor_config *cfg, struct sensor_device *dev)
{
rt_sensor_t sensor = RT_NULL;
rt_int8_t result;
/* sensor register */
sensor = rt_calloc(1, sizeof(struct rt_sensor_device));
if (sensor == RT_NULL)
goto __exit;
sensor->info.type = RT_SENSOR_CLASS_HUMI; // Set real type
sensor->info.vendor = RT_SENSOR_VENDOR_UNKNOWN; // Set real vendor
sensor->info.model = name; // set real model name
sensor->info.unit = RT_SENSOR_UNIT_PERMILLAGE; // set to real unit flag
sensor->info.intf_type = RT_SENSOR_INTF_I2C; // Set interface type
sensor->info.range_max = 0xFFFF; // Set to range max
sensor->info.range_min = 0x0000; // Set to range min
sensor->info.period_min = 50; // Set frequency
rt_memcpy(&sensor->config, cfg, sizeof(struct rt_sensor_config));
sensor->ops = &sensor_ops;
result = rt_hw_sensor_register(sensor, name, RT_DEVICE_FLAG_RDONLY, dev);
if (result != RT_EOK)
{
goto __exit;
}
return RT_EOK;
__exit:
if (sensor)
rt_free(sensor);
return -RT_ERROR;
}
#endif
#ifdef BSP_USING_RRH62000_TVOC
rt_err_t rrh62000_register_TVOC(const char *name, struct rt_sensor_config *cfg, struct sensor_device *dev)
{
rt_sensor_t sensor = RT_NULL;
rt_int8_t result;
/* sensor register */
sensor = rt_calloc(1, sizeof(struct rt_sensor_device));
if (sensor == RT_NULL)
goto __exit;
sensor->info.type = RT_SENSOR_CLASS_TVOC; // Set real type
sensor->info.vendor = RT_SENSOR_VENDOR_UNKNOWN; // Set real vendor
sensor->info.model = name; // set real model name
sensor->info.unit = RT_SENSOR_UNIT_MGM3; // set to real unit flag
sensor->info.intf_type = RT_SENSOR_INTF_I2C; // Set interface type
sensor->info.range_max = 0xFFFF; // Set to range max
sensor->info.range_min = 0x0000; // Set to range min
sensor->info.period_min = 50; // Set frequency
rt_memcpy(&sensor->config, cfg, sizeof(struct rt_sensor_config));
sensor->ops = &sensor_ops;
result = rt_hw_sensor_register(sensor, name, RT_DEVICE_FLAG_RDONLY, dev);
if (result != RT_EOK)
{
goto __exit;
}
return RT_EOK;
__exit:
if (sensor)
rt_free(sensor);
return -RT_ERROR;
}
#endif
#ifdef BSP_USING_RRH62000_DUST
rt_err_t rrh62000_register_Dust(const char *name, struct rt_sensor_config *cfg, struct sensor_device *dev)
{
rt_sensor_t sensor = RT_NULL;
rt_int8_t result;
/* sensor register */
sensor = rt_calloc(1, sizeof(struct rt_sensor_device));
if (sensor == RT_NULL)
goto __exit;
sensor->info.type = RT_SENSOR_CLASS_DUST; // Set real type
sensor->info.vendor = RT_SENSOR_VENDOR_UNKNOWN; // Set real vendor
sensor->info.model = name; // set real model name
sensor->info.unit = RT_SENSOR_UNIT_MGM3; // set to real unit flag
sensor->info.intf_type = RT_SENSOR_INTF_I2C; // Set interface type
sensor->info.range_max = 0xFFFF; // Set to range max
sensor->info.range_min = 0x0000; // Set to range min
sensor->info.period_min = 50; // Set frequency
rt_memcpy(&sensor->config, cfg, sizeof(struct rt_sensor_config));
sensor->ops = &sensor_ops;
result = rt_hw_sensor_register(sensor, name, RT_DEVICE_FLAG_RDONLY, dev);
if (result != RT_EOK)
{
goto __exit;
}
return RT_EOK;
__exit:
if (sensor)
rt_free(sensor);
return -RT_ERROR;
}
#endif
#ifdef BSP_USING_RRH62000_ECO2
rt_err_t rrh62000_register_ECO2(const char *name, struct rt_sensor_config *cfg, struct sensor_device *dev)
{
rt_sensor_t sensor = RT_NULL;
rt_int8_t result;
/* sensor register */
sensor = rt_calloc(1, sizeof(struct rt_sensor_device));
if (sensor == RT_NULL)
goto __exit;
sensor->info.type = RT_SENSOR_CLASS_ECO2; // Set real type
sensor->info.vendor = RT_SENSOR_VENDOR_UNKNOWN; // Set real vendor
sensor->info.model = name; // set real model name
sensor->info.unit = RT_SENSOR_UNIT_PPM; // set to real unit flag
sensor->info.intf_type = RT_SENSOR_INTF_I2C; // Set interface type
sensor->info.range_max = 0xFFFF; // Set to range max
sensor->info.range_min = 0x0000; // Set to range min
sensor->info.period_min = 50; // Set frequency
rt_memcpy(&sensor->config, cfg, sizeof(struct rt_sensor_config));
sensor->ops = &sensor_ops;
result = rt_hw_sensor_register(sensor, name, RT_DEVICE_FLAG_RDONLY, dev);
if (result != RT_EOK)
{
goto __exit;
}
return RT_EOK;
__exit:
if (sensor)
rt_free(sensor);
return -RT_ERROR;
}
#endif
#ifdef BSP_USING_RRH62000_IAQ
rt_err_t rrh62000_register_IAQ(const char *name, struct rt_sensor_config *cfg, struct sensor_device *dev)
{
rt_sensor_t sensor = RT_NULL;
rt_int8_t result;
/* sensor register */
sensor = rt_calloc(1, sizeof(struct rt_sensor_device));
if (sensor == RT_NULL)
goto __exit;
sensor->info.type = RT_SENSOR_CLASS_IAQ; // Set real type
sensor->info.vendor = RT_SENSOR_VENDOR_UNKNOWN; // Set real vendor
sensor->info.model = name; // set real model name
sensor->info.unit = RT_SENSOR_UNIT_NONE; // set to real unit flag
sensor->info.intf_type = RT_SENSOR_INTF_I2C; // Set interface type
sensor->info.range_max = 0xFFFF; // Set to range max
sensor->info.range_min = 0x0000; // Set to range min
sensor->info.period_min = 50; // Set frequency
rt_memcpy(&sensor->config, cfg, sizeof(struct rt_sensor_config));
sensor->ops = &sensor_ops;
result = rt_hw_sensor_register(sensor, name, RT_DEVICE_FLAG_RDONLY, dev);
if (result != RT_EOK)
{
goto __exit;
}
return RT_EOK;
__exit:
if (sensor)
rt_free(sensor);
return -RT_ERROR;
}
#endif
static int rrh62000_device_register(void)
{
rt_int8_t result;
struct sensor_device *dev;
const char *name = "rrh62000";
struct rt_sensor_config cfg = {
.mode = RT_SENSOR_MODE_POLLING,
.power = RT_SENSOR_POWER_DOWN,
};
dev = rrh62000_param_init();
if(dev == RT_NULL)
{
goto __exit;
}
#ifdef BSP_USING_RRH62000_TEMP
result = rrh62000_register_temperature(name, &cfg, dev);
if (result != RT_EOK)
{
goto __exit;
}
#endif
#ifdef BSP_USING_RRH62000_HUMI
result = rrh62000_register_humidity(name, &cfg, dev);
if (result != RT_EOK)
{
goto __exit;
}
#endif
#ifdef BSP_USING_RRH62000_TVOC
result = rrh62000_register_TVOC(name, &cfg, dev);
if (result != RT_EOK)
{
goto __exit;
}
#endif
#ifdef BSP_USING_RRH62000_DUST
result = rrh62000_register_Dust(name, &cfg, dev);
if (result != RT_EOK)
{
goto __exit;
}
#endif
#ifdef BSP_USING_RRH62000_ECO2
result = rrh62000_register_ECO2(name, &cfg, dev);
if (result != RT_EOK)
{
goto __exit;
}
#endif
#ifdef BSP_USING_RRH62000_IAQ
result = rrh62000_register_IAQ(name, &cfg, dev);
if (result != RT_EOK)
{
goto __exit;
}
#endif
return RT_EOK;
__exit:
if(dev)
rt_free(dev);
return -RT_ERROR;
}
INIT_DEVICE_EXPORT(rrh62000_device_register);
#ifdef BSP_USING_RRH62000_TEMP
#define RRH_TEMP_DEVICE_NAME "temp_rrh"
static void rrh6200_temp_read(void)
{
rt_device_t dev = rt_device_find(RRH_TEMP_DEVICE_NAME);
rt_err_t result;
rt_uint32_t len;
struct rt_sensor_data data;
if(!dev)
{
rt_kprintf("No device name %s\n\r", RRH_TEMP_DEVICE_NAME);
return;
}
result = rt_device_open(dev,RT_DEVICE_FLAG_RDONLY);
if(result != RT_EOK)
{
rt_kprintf("Open %s Fail\n\r", RRH_TEMP_DEVICE_NAME);
return;
}
len = rt_device_read(dev, 0 ,&data,1);
if(len)
{
rt_kprintf("Temp %d.%d \n\r", data.data.temp >> 16, data.data.temp & 0x0000FFFF);
}
result = rt_device_close(dev);
if(result != RT_EOK)
{
rt_kprintf("Close %s Fail\n\r", RRH_TEMP_DEVICE_NAME);
return;
}
}
MSH_CMD_EXPORT(rrh6200_temp_read, rrh62000 sample);
#endif
#ifdef BSP_USING_RRH62000_HUMI
#define RRH_HUMI_DEVICE_NAME "humi_rrh"
static void rrh6200_humi_read(void)
{
rt_device_t dev = rt_device_find(RRH_HUMI_DEVICE_NAME);
rt_err_t result;
rt_uint32_t len;
struct rt_sensor_data data;
if(!dev)
{
rt_kprintf("No device name %s\n\r", RRH_HUMI_DEVICE_NAME);
return;
}
result = rt_device_open(dev,RT_DEVICE_FLAG_RDONLY);
if(result != RT_EOK)
{
rt_kprintf("Open %s Fail\n\r", RRH_HUMI_DEVICE_NAME);
return;
}
len = rt_device_read(dev, 0 ,&data,1);
if(len)
{
rt_kprintf("Humidity %d.%d \n\r", data.data.humi >> 16, data.data.humi & 0x0000FFFF);
}
result = rt_device_close(dev);
if(result != RT_EOK)
{
rt_kprintf("Close %s Fail\n\r", RRH_HUMI_DEVICE_NAME);
return;
}
}
MSH_CMD_EXPORT(rrh6200_humi_read, rrh62000 sample);
#endif
#ifdef BSP_USING_RRH62000_TVOC
#define RRH_TVOC_DEVICE_NAME "tvoc_rrh"
static void rrh6200_tvoc_read(void)
{
rt_device_t dev = rt_device_find(RRH_TVOC_DEVICE_NAME);
rt_err_t result;
rt_uint32_t len;
struct rt_sensor_data data;
if(!dev)
{
rt_kprintf("No device name %s\n\r", RRH_TVOC_DEVICE_NAME);
return;
}
result = rt_device_open(dev,RT_DEVICE_FLAG_RDONLY);
if(result != RT_EOK)
{
rt_kprintf("Open %s Fail\n\r", RRH_TVOC_DEVICE_NAME);
return;
}
len = rt_device_read(dev, 0 ,&data,1);
if(len)
{
rt_kprintf("TVOC %d.%d \n\r", data.data.tvoc >> 16, data.data.tvoc & 0x0000FFFF);
}
result = rt_device_close(dev);
if(result != RT_EOK)
{
rt_kprintf("Close %s Fail\n\r", RRH_TVOC_DEVICE_NAME);
return;
}
}
MSH_CMD_EXPORT(rrh6200_tvoc_read, rrh62000 sample);
#endif
#ifdef BSP_USING_RRH62000_DUST
#define RRH_DUST_DEVICE_NAME "dust_rrh"
static void rrh6200_dust_read(void)
{
rt_device_t dev = rt_device_find(RRH_DUST_DEVICE_NAME);
rt_err_t result;
rt_uint32_t len;
struct rt_sensor_data data;
if(!dev)
{
rt_kprintf("No device name %s\n\r", RRH_DUST_DEVICE_NAME);
return;
}
result = rt_device_open(dev,RT_DEVICE_FLAG_RDONLY);
if(result != RT_EOK)
{
rt_kprintf("Open %s Fail\n\r", RRH_DUST_DEVICE_NAME);
return;
}
len = rt_device_read(dev, 0 ,&data,1);
if(len)
{
rt_kprintf("dust %d.%d \n\r", data.data.dust >> 16, data.data.dust & 0x0000FFFF);
}
result = rt_device_close(dev);
if(result != RT_EOK)
{
rt_kprintf("Close %s Fail\n\r", RRH_DUST_DEVICE_NAME);
return;
}
}
MSH_CMD_EXPORT(rrh6200_dust_read, rrh62000 sample);
#endif
#ifdef BSP_USING_RRH62000_ECO2
#define RRH_ECO2_DEVICE_NAME "eco2_rrh"
static void rrh6200_eco2_read(void)
{
rt_device_t dev = rt_device_find(RRH_ECO2_DEVICE_NAME);
rt_err_t result;
rt_uint32_t len;
struct rt_sensor_data data;
if(!dev)
{
rt_kprintf("No device name %s\n\r", RRH_ECO2_DEVICE_NAME);
return;
}
result = rt_device_open(dev,RT_DEVICE_FLAG_RDONLY);
if(result != RT_EOK)
{
rt_kprintf("Open %s Fail\n\r", RRH_ECO2_DEVICE_NAME);
return;
}
len = rt_device_read(dev, 0 ,&data,1);
if(len)
{
rt_kprintf("ECO2 %d.%d \n\r", data.data.eco2 >> 16, data.data.eco2 & 0x0000FFFF);
}
result = rt_device_close(dev);
if(result != RT_EOK)
{
rt_kprintf("Close %s Fail\n\r", RRH_ECO2_DEVICE_NAME);
return;
}
}
MSH_CMD_EXPORT(rrh6200_eco2_read, rrh62000 sample);
#endif
#ifdef BSP_USING_RRH62000_IAQ
#define RRH_IAQ_DEVICE_NAME "iaq_rrh6"
static void rrh6200_iaq_read(void)
{
rt_device_t dev = rt_device_find(RRH_IAQ_DEVICE_NAME);
rt_err_t result;
rt_uint32_t len;
struct rt_sensor_data data;
if(!dev)
{
rt_kprintf("No device name %s\n\r", RRH_IAQ_DEVICE_NAME);
return;
}
result = rt_device_open(dev,RT_DEVICE_FLAG_RDONLY);
if(result != RT_EOK)
{
rt_kprintf("Open %s Fail\n\r", RRH_IAQ_DEVICE_NAME);
return;
}
len = rt_device_read(dev, 0 ,&data,1);
if(len)
{
rt_kprintf("IAQ %d.%d \n\r", data.data.iaq >> 16, data.data.iaq & 0x0000FFFF);
}
result = rt_device_close(dev);
if(result != RT_EOK)
{
rt_kprintf("Close %s Fail\n\r", RRH_IAQ_DEVICE_NAME);
return;
}
}
MSH_CMD_EXPORT(rrh6200_iaq_read, rrh62000 sample);
#endifKConfig
menu "Board extended module Drivers" menuconfig BSP_USING_RRH62000 bool "Enable RRH62000" default n if BSP_USING_RRH62000 config BSP_USING_RRH62000_TEMP bool "Enable RRH62000 Temperature" default n config BSP_USING_RRH62000_HUMI bool "Enable RRH62000 Humidity" default n config BSP_USING_RRH62000_TVOC bool "Enable RRH62000 TVOC" default n config BSP_USING_RRH62000_ECO2 bool "Enable RRH62000 ECO2" default n config BSP_USING_RRH62000_DUST bool "Enable RRH62000 Dust" default n config BSP_USING_RRH62000_IAQ bool "Enable RRH62000 IAQ" default n endif endmenu
以上部分修改完后，需运行menuconfig选配好对应的传感器功能并运行scons --target=mdk5生成新工程。我的测试环境是将所有传感器功能都启用。
运行结果
\ | / - RT - Thread Operating System / | \ 5.2.0 build Nov 30 2024 20:07:57 2006 - 2024 Copyright by RT-Thread team [I/I2C] I2C bus [i2c1] registered rrh62000 firmware version 1.0 rrh62000 algoritm version 3.2.0 [I/sensor] rt_sensor[temp_rrh62000] init success [I/sensor] rt_sensor[humi_rrh62000] init success [I/sensor] rt_sensor[tvoc_rrh62000] init success [I/sensor] rt_sensor[dust_rrh62000] init success [I/sensor] rt_sensor[eco2_rrh62000] init success [I/sensor] rt_sensor[iaq_rrh62000] init success Hello RT-Thread! msh >rrh6200_iaq_read IAQ 0.0 msh >rrh6200_iaq_read IAQ 1.0 msh >rrh6200_eco2_read ECO2 400.0 msh >rrh6200_dust_read dust 0.1 msh >rrh6200_tvoc_read TVOC 0.2 msh >rrh6200_temp_read Temp 21.85 msh >rrh6200_humi_read Humidity 41.75 msh >
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