projects: ad7091r: Add minor updates

Update limit registers attribute setter functions. Get the latest alert recorded when both occur. Do a read op to record if any alert is occured. Revert back active com port to phy com port. Signed-off-by: SGudla <[email protected]>
analogdevicesinc · Dec 23, 2024 · 1afc6ba · 1afc6ba
1 parent 739ff40
commit 1afc6ba
Show file tree

Hide file tree

Showing 2 changed files with 20 additions and 4 deletions.
diff --git a/projects/ad7091r_iio/STM32/.extSettings b/projects/ad7091r_iio/STM32/.extSettings
@@ -23,4 +23,4 @@ app/libraries/no-OS/iio/=../../../libraries/no-OS/iio/iio.c;../../../libraries/n
 app/libraries/no-OS/drivers/api/=../../../libraries/no-OS/drivers/api/no_os_gpio.c;../../../libraries/no-OS/drivers/api/no_os_spi.c;../../../libraries/no-OS/drivers/api/no_os_i2c.c;../../../libraries/no-OS/drivers/api/no_os_eeprom.c;../../../libraries/no-OS/drivers/api/no_os_irq.c;../../../libraries/no-OS/drivers/api/no_os_uart.c;../../../libraries/no-OS/drivers/api/no_os_pwm.c;../../../libraries/no-OS/drivers/api/no_os_dma.c;
 
 [Others]
-Define=_USE_STD_INT_TYPES;TINYIIOD_VERSION_MAJOR;TINYIIOD_VERSION_MINOR;TINYIIOD_VERSION_GIT;IIOD_BUFFER_SIZE;IIO_IGNORE_BUFF_OVERRUN_ERR;ACTIVE_PLATFORM:1;TARGET_SDP_K1
+Define=_USE_STD_INT_TYPES;TINYIIOD_VERSION_MAJOR;TINYIIOD_VERSION_MINOR;TINYIIOD_VERSION_GIT;IIOD_BUFFER_SIZE;USE_PHY_COM_PORT;IIO_IGNORE_BUFF_OVERRUN_ERR;ACTIVE_PLATFORM:1;TARGET_SDP_K1
diff --git a/projects/ad7091r_iio/app/ad7091r_iio.c b/projects/ad7091r_iio/app/ad7091r_iio.c
@@ -103,6 +103,9 @@ static int ad7091r_iio_attr_available_set(void *device,
 /* AD70901r register maximum value */
 #define REGISTER_MAX_VAL AD7091R8_REG_CH_HYSTERESIS(7)
 
+/* AD70901r limit register value bit shift */
+#define AD7091R_LIMIT_REG_BIT_SHIFT  3
+
 /* ADC data buffer size */
 #if defined(USE_SDRAM)
 #define adc_data_buffer				SDRAM_START_ADDRESS
@@ -406,6 +409,7 @@ static int ad7091r_iio_attr_get(void *device,
 	int ret;
 	uint16_t read_val = 0;
 	enum ad7091r8_alert_type alert;
+	static uint8_t alert_val[8];
 
 	switch (priv) {
 	case ADC_RAW:
@@ -427,11 +431,23 @@ static int ad7091r_iio_attr_get(void *device,
 		return sprintf(buf, "%d", offset);
 
 	case ADC_THRESHOLD_ALERT:
+		/* Do one read op for threshold alert */
+		ret = ad7091r8_read_one_stm(channel->ch_num, &read_val);
+		if (ret) {
+			return ret;
+		}
+
 		ret = ad7091r8_get_alert(ad7091r_dev_desc, channel->ch_num, &alert);
 		if (ret) {
 			return ret;
 		}
 
+		/* If both alerts are recorded, retrieve the latest alert occured */
+		if (alert >= NO_OS_ARRAY_SIZE(ad7091r_thresh_val)) {
+			alert &= ~alert_val[channel->ch_num];
+		}
+		alert_val[channel->ch_num] = alert;
+
 		return sprintf(buf, "%s", ad7091r_thresh_val[alert]);
 
 	case ADC_LOW_LIMIT_REG:
@@ -532,7 +548,7 @@ static int ad7091r_iio_attr_set(void *device,
 		write_val = no_os_str_to_uint32(buf);
 
 		ret = ad7091r8_set_limit(ad7091r_dev_desc, AD7091R8_LOW_LIMIT, channel->ch_num,
-					 write_val);
+					 write_val >> AD7091R_LIMIT_REG_BIT_SHIFT);
 		if (ret) {
 			return ret;
 		}
@@ -543,7 +559,7 @@ static int ad7091r_iio_attr_set(void *device,
 		write_val = no_os_str_to_uint32(buf);
 
 		ret = ad7091r8_set_limit(ad7091r_dev_desc, AD7091R8_HIGH_LIMIT, channel->ch_num,
-					 write_val);
+					 write_val >> AD7091R_LIMIT_REG_BIT_SHIFT);
 		if (ret) {
 			return ret;
 		}
@@ -554,7 +570,7 @@ static int ad7091r_iio_attr_set(void *device,
 		write_val = no_os_str_to_uint32(buf);
 
 		ret = ad7091r8_set_limit(ad7091r_dev_desc, AD7091R8_HYSTERESIS, channel->ch_num,
-					 write_val);
+					 write_val >> AD7091R_LIMIT_REG_BIT_SHIFT);
 		if (ret) {
 			return ret;
 		}