altos: Add ADC tests to stm-demo

Signed-off-by: Keith Packard <keithp@keithp.com>

3 files changed, 41 insertions, 13 deletions

diff --git a/src/stm-demo/Makefile b/src/stm-demo/Makefile
index c1f49371..26c81a82 100644
--- a/src/stm-demo/Makefile
+++ b/src/stm-demo/Makefile
@@ -29,13 +29,14 @@ ALTOS_SRC = \
 	ao_lcd_font.c \
 	ao_mutex.c \
 	ao_dma_stm.c \
-	ao_spi_stm.c 
+	ao_spi_stm.c \
+	ao_adc_stm.c
 
 PRODUCT=StmDemo-v0.0
 PRODUCT_DEF=-DSTM_DEMO
 IDPRODUCT=0x000a
 
-CFLAGS = $(PRODUCT_DEF) $(STM_CFLAGS) -g -Os
+CFLAGS = $(PRODUCT_DEF) $(STM_CFLAGS) -g -O0
 
 PROG=stm-demo
 
diff --git a/src/stm-demo/ao_demo.c b/src/stm-demo/ao_demo.c
index 5ff2b32a..63647aac 100644
--- a/src/stm-demo/ao_demo.c
+++ b/src/stm-demo/ao_demo.c
@@ -51,13 +51,15 @@ void _exit () { }
 void _read () { }
 void _fstat() { }
 
+#define AO_DMA_TEST_INDEX	STM_DMA_INDEX(4)
+
 static void
 ao_dma_test(void) {
 	static char	src[20] = "hello, world";
 	static char	dst[20];
 	
 	dst[0] = '\0';
-	ao_dma_set_transfer(STM_DMA_INDEX(1), dst, src, 13,
+	ao_dma_set_transfer(AO_DMA_TEST_INDEX, dst, src, 13,
 			    (1 << STM_DMA_CCR_MEM2MEM) |
 			    (STM_DMA_CCR_PL_LOW << STM_DMA_CCR_PL) |
 			    (STM_DMA_CCR_MSIZE_8 << STM_DMA_CCR_MSIZE) |
@@ -66,11 +68,12 @@ ao_dma_test(void) {
 			    (1 << STM_DMA_CCR_PINC) |
 			    (0 << STM_DMA_CCR_CIRC) |
 			    (STM_DMA_CCR_DIR_MEM_TO_PER << STM_DMA_CCR_DIR));
-	ao_dma_start(STM_DMA_INDEX(1));
-	cli();
-	while (!ao_dma_done[STM_DMA_INDEX(1)])
-		ao_sleep(&ao_dma_done[STM_DMA_INDEX(1)]);
-	sei();
+	ao_dma_start(AO_DMA_TEST_INDEX);
+	ao_arch_critical(
+		while (!ao_dma_done[AO_DMA_TEST_INDEX])
+			ao_sleep(&ao_dma_done[AO_DMA_TEST_INDEX]);
+		);
+	ao_dma_done_transfer(AO_DMA_TEST_INDEX);
 	printf ("copied %s\n", dst);
 }
 
@@ -128,13 +131,12 @@ main(void)
 //	ao_lcd_font_init();
 	ao_spi_init();
 
+	ao_timer_set_adc_interval(100);
+
+	ao_adc_init();
+
 	ao_cmd_register(&ao_demo_cmds[0]);
 	
-	stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_GPIOCEN);
-	stm_gpio_set(&stm_gpioc, 12, 1);
-	stm_moder_set(&stm_gpioc, 12, STM_MODER_OUTPUT);
-	stm_otyper_set(&stm_gpioc, 12, STM_OTYPER_PUSH_PULL);
-
 	ao_start_scheduler();
 	return 0;
 }
diff --git a/src/stm-demo/ao_pins.h b/src/stm-demo/ao_pins.h
index 09c88f90..fecd8cda 100644
--- a/src/stm-demo/ao_pins.h
+++ b/src/stm-demo/ao_pins.h
@@ -111,4 +111,29 @@
 
 #define AO_LCD_28_ON_C	1
 
+#define HAS_ADC			1
+
+#define AO_ADC_RING		32
+
+struct ao_adc {
+	uint16_t		tick;
+	int16_t			idd;
+	int16_t			temp;
+};
+
+#define AO_ADC_IDD		4
+#define AO_ADC_PIN0_PORT	stm_gpioa
+#define AO_ADC_PIN0_PIN		4
+
+#define AO_ADC_RCC_AHBENR	((1 << STM_RCC_AHBENR_GPIOAEN))
+#define AO_ADC_TEMP		16
+
+#define HAS_ADC_TEMP		1
+
+#define AO_NUM_ADC		2
+
+#define AO_ADC_SQ1		AO_ADC_IDD
+#define AO_ADC_SQ2		AO_ADC_TEMP
+	
+
 #endif /* _AO_PINS_H_ */