From f4ebd4a603a3a0b903424bb35ef68e9844a7dbe9 Mon Sep 17 00:00:00 2001
From: Karl Palsson <karlp@tweak.net.au>
Date: Fri, 4 Mar 2016 00:40:08 +0000
Subject: attempt actual adc on l4

(insufficient,needs clocks yet)
---
 tests/adc-power/Makefile.stm32l4-disco |  5 ++---
 tests/adc-power/adc-power.c            |  6 ++++++
 tests/adc-power/main-stm32l4-disco.c   | 17 +++++++++++++++--
 3 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/tests/adc-power/Makefile.stm32l4-disco b/tests/adc-power/Makefile.stm32l4-disco
index 99fc9e2..7957e9d 100644
--- a/tests/adc-power/Makefile.stm32l4-disco
+++ b/tests/adc-power/Makefile.stm32l4-disco
@@ -6,9 +6,8 @@ BUILD_DIR = bin-$(BOARD)
 SHARED_DIR = ../../shared
 
 CFILES = main-$(BOARD).c
-# hah, not yet!
-#CFILES += adc-power.c
-#CFILES += trace.c trace_stdio.c
+CFILES += adc-power.c
+CFILES += trace.c trace_stdio.c
 
 VPATH += $(SHARED_DIR)
 
diff --git a/tests/adc-power/adc-power.c b/tests/adc-power/adc-power.c
index bb70aa7..a188649 100644
--- a/tests/adc-power/adc-power.c
+++ b/tests/adc-power/adc-power.c
@@ -62,6 +62,12 @@ void adc_power_init(void)
 	rcc_periph_clock_enable(RCC_ADC12);
 	rcc_adc_prescale(RCC_CFGR2_ADCxPRES_PLL_CLK_DIV_1, RCC_CFGR2_ADCxPRES_PLL_CLK_DIV_1);
 	adc_enable_regulator(ADC1);
+#elif defined (STM32L4)
+	/* same same but different */
+	rcc_periph_clock_enable(RCC_ADC1);
+	ADC_CR(ADC1) &= ~ADC_CR_DEEPPWD;
+	adc_enable_regulator(ADC1);
+
 #else
 	rcc_periph_clock_enable(RCC_ADC1);
 #if 0
diff --git a/tests/adc-power/main-stm32l4-disco.c b/tests/adc-power/main-stm32l4-disco.c
index 4b8ca43..a23266f 100644
--- a/tests/adc-power/main-stm32l4-disco.c
+++ b/tests/adc-power/main-stm32l4-disco.c
@@ -10,6 +10,9 @@
 #include <libopencm3/stm32/gpio.h>
 #include <libopencm3/stm32/rcc.h>
 
+#include "trace.h"
+#include "adc-power.h"
+
 #define LED_DISCO_RED_PORT GPIOB
 #define LED_DISCO_RED_PIN GPIO2
 #define LED_DISCO_GREEN_PORT GPIOE
@@ -20,20 +23,30 @@ int main(void)
 {
 	int i;
 	int j = 0;
-	rcc_periph_clock_enable(RCC_GPIOB);
-	rcc_periph_clock_enable(RCC_GPIOE);
+	rcc_periph_clock_enable(RCC_GPIOB); // led
+	rcc_periph_clock_enable(RCC_GPIOE); // led
+	rcc_periph_clock_enable(RCC_GPIOA); // adcs
+	rcc_periph_clock_enable(RCC_GPIOC); // adcs
+	printf("hi guys!\n");
 	/* green led for ticking */
 	gpio_mode_setup(LED_DISCO_GREEN_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
 			LED_DISCO_GREEN_PIN);
 	gpio_mode_setup(LED_DISCO_RED_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
 			LED_DISCO_RED_PIN);
 
+	/* ADC 1 channels 1 and 5 */
+	gpio_mode_setup(GPIOC, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO0);
+	gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO5);
+
+	adc_power_init();
 	while (1) {
+		adc_power_task_up();
 		gpio_toggle(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN);
 
 		for (i = 0; i < 0x10000; i++) { /* Wait a bit. */
 			__asm__("NOP");
 		}
+		adc_power_task_down();
 		gpio_toggle(LED_DISCO_RED_PORT, LED_DISCO_RED_PIN);
 		for (i = 0; i < 0x10000; i++) { /* Wait a bit. */
 			__asm__("NOP");
-- 
cgit