tdc: added get_wr_pointer attribute to check the board

57ef1901 · igalia · 104d5318 · 57ef1901 · 57ef1901
Commit 57ef1901 authored Sep 13, 2012 by igalia
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tdc-zio.c drivers/tdc-zio.c +6 -0

tdc.h drivers/tdc.h +1 -0

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--- a/drivers/tdc-zio.c
+++ b/drivers/tdc-zio.c
@@ -41,6 +41,8 @@ static struct zio_attribute tdc_zattr_dev[] = {
 	ZATTR_EXT_REG("dac_word", _RW_, TDC_ATTR_DEV_DAC_WORD, 0),
 	ZATTR_EXT_REG("activate_acquisition", _RW_,
 		      TDC_ATTR_DEV_ACTIVATE_ACQUISITION, 0),
+	ZATTR_EXT_REG("get_wr_pointer", _RW_,
+		      TDC_ATTR_DEV_GET_POINTER, 0),

 };

@@ -185,6 +187,10 @@ static int tdc_zio_info_get(struct device *dev,
 	case TDC_ATTR_DEV_ACTIVATE_ACQUISITION:
 		*usr_val = atomic_read(&tdc->busy);
 		break;
+	case TDC_ATTR_DEV_GET_POINTER:
+		*usr_val = tdc_get_circular_buffer_wr_pointer(tdc);
+		break;
+
 	default:
 		return -EINVAL;
 	}

--- a/drivers/tdc.h
+++ b/drivers/tdc.h
@@ -46,6 +46,7 @@ enum tdc_zattr_dev_idx {
 	TDC_ATTR_DEV_INPUT_ENABLED,
 	TDC_ATTR_DEV_DAC_WORD,
 	TDC_ATTR_DEV_ACTIVATE_ACQUISITION,
+	TDC_ATTR_DEV_GET_POINTER,
 	TDC_ATTR_DEV__LAST,
 };