Move ADC console command to common

We have three duplicated ADC read console command, and we are about to
have the fourth. Let's consolidate them to a single implementation in
common/.

Note that we have to add a simple implementation of
adc_read_all_channels() for LM4.

BUG=chrome-os-partner:18343
TEST=Build all boards
TEST=Read single channel
TEST=Read all channels
BRANCH=None

Change-Id: I079c0b33ab6b81a188f309cf99875eb02e9d78a4
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/180831

1 files changed, 12 insertions, 15 deletions

diff --git a/chip/lm4/adc.c b/chip/lm4/adc.c
index 1e4fdf16c5..19548b12bd 100644
--- a/chip/lm4/adc.c
+++ b/chip/lm4/adc.c
@@ -162,6 +162,18 @@ int adc_read_channel(enum adc_channel ch)
 	return rv * adc->factor_mul / adc->factor_div + adc->shift;
 }
 
+int adc_read_all_channels(int *data)
+{
+	int i;
+
+	for (i = 0; i < ADC_CH_COUNT; ++i) {
+		data[i] = adc_read_channel(i);
+		if (data[i] == ADC_READ_ERROR)
+			return EC_ERROR_UNKNOWN;
+	}
+	return EC_SUCCESS;
+}
+
 /*****************************************************************************/
 /* Interrupt handlers */
 
@@ -206,21 +218,6 @@ DECLARE_CONSOLE_COMMAND(ectemp, command_ectemp,
 			NULL);
 #endif
 
-static int command_adc(int argc, char **argv)
-{
-	int i;
-
-	for (i = 0; i < ADC_CH_COUNT; ++i)
-		ccprintf("ADC channel \"%s\" = %d\n",
-			 adc_channels[i].name, adc_read_channel(i));
-
-	return EC_SUCCESS;
-}
-DECLARE_CONSOLE_COMMAND(adc, command_adc,
-			NULL,
-			"Print ADC channels",
-			NULL);
-
 /*****************************************************************************/
 /* Initialization */