From 42dab7385192880a35e9d88f64dc19c1b8d94393 Mon Sep 17 00:00:00 2001
From: Michel Pollet <buserror@gmail.com>
Date: Wed, 14 Apr 2010 22:59:23 +0100
Subject: [PATCH] cores: Added tinyX5 and mega128 ADC bits

Not tested

Signed-off-by: Michel Pollet <buserror@gmail.com>
---
 simavr/cores/sim_mega128.c | 26 ++++++++++++++++++++++++++
 simavr/cores/sim_tinyx5.h  | 19 +++++++++++++++++++
 simavr/sim/avr_adc.c       |  6 ++++++
 simavr/sim/avr_adc.h       |  1 +
 4 files changed, 52 insertions(+)

diff --git a/simavr/cores/sim_mega128.c b/simavr/cores/sim_mega128.c
index 18a8cdf..bc5a22c 100644
--- a/simavr/cores/sim_mega128.c
+++ b/simavr/cores/sim_mega128.c
@@ -164,6 +164,8 @@ struct mcu_t {
 					AVR_IO_REGBIT(ADMUX, MUX2), AVR_IO_REGBIT(ADMUX, MUX3),
 					AVR_IO_REGBIT(ADMUX, MUX4),},
 		.ref = { AVR_IO_REGBIT(ADMUX, REFS0), AVR_IO_REGBIT(ADMUX, REFS1)},
+		.ref_values = { [1] = ADC_VREF_AVCC, [3] = ADC_VREF_V256 },
+
 		.adlar = AVR_IO_REGBIT(ADMUX, ADLAR),
 		.r_adcsra = ADCSRA,
 		.aden = AVR_IO_REGBIT(ADCSRA, ADEN),
@@ -177,6 +179,30 @@ struct mcu_t {
 		//.r_adcsrb = ADCSRB,
 		// .adts = { AVR_IO_REGBIT(ADCSRB, ADTS0), AVR_IO_REGBIT(ADCSRB, ADTS1), AVR_IO_REGBIT(ADCSRB, ADTS2),},
 
+		.muxmode = {
+			[0] = AVR_ADC_SINGLE(0), [1] = AVR_ADC_SINGLE(1),
+			[2] = AVR_ADC_SINGLE(2), [3] = AVR_ADC_SINGLE(3),
+			[4] = AVR_ADC_SINGLE(4), [5] = AVR_ADC_SINGLE(5),
+			[6] = AVR_ADC_SINGLE(6), [7] = AVR_ADC_SINGLE(7),
+
+			[ 8] = AVR_ADC_DIFF(0, 0,  10), [ 9] = AVR_ADC_DIFF(1, 0,  10),
+			[10] = AVR_ADC_DIFF(0, 0, 200), [11] = AVR_ADC_DIFF(1, 0, 200),
+			[12] = AVR_ADC_DIFF(2, 2,  10), [13] = AVR_ADC_DIFF(3, 2,  10),
+			[14] = AVR_ADC_DIFF(2, 2, 200), [15] = AVR_ADC_DIFF(3, 2, 200),
+
+			[16] = AVR_ADC_DIFF(0, 1,   1), [17] = AVR_ADC_DIFF(1, 1,   1),
+			[18] = AVR_ADC_DIFF(2, 1,   1), [19] = AVR_ADC_DIFF(3, 1,   1),
+			[20] = AVR_ADC_DIFF(4, 1,   1), [21] = AVR_ADC_DIFF(5, 1,   1),
+			[22] = AVR_ADC_DIFF(6, 1,   1), [23] = AVR_ADC_DIFF(7, 1,   1),
+
+			[24] = AVR_ADC_DIFF(0, 2,   1), [25] = AVR_ADC_DIFF(1, 2,   1),
+			[26] = AVR_ADC_DIFF(2, 2,   1), [27] = AVR_ADC_DIFF(3, 2,   1),
+			[28] = AVR_ADC_DIFF(4, 2,   1), [29] = AVR_ADC_DIFF(5, 2,   1),
+
+			[30] = AVR_ADC_REF(1230),	// 1.1V
+			[31] = AVR_ADC_REF(0),		// GND
+		},
+
 		.adc = {
 			.enable = AVR_IO_REGBIT(ADCSRA, ADIE),
 			.raised = AVR_IO_REGBIT(ADCSRA, ADIF),
diff --git a/simavr/cores/sim_tinyx5.h b/simavr/cores/sim_tinyx5.h
index 0610e57..90792df 100644
--- a/simavr/cores/sim_tinyx5.h
+++ b/simavr/cores/sim_tinyx5.h
@@ -84,6 +84,12 @@ struct mcu_t SIM_CORENAME = {
 		.mux = { AVR_IO_REGBIT(ADMUX, MUX0), AVR_IO_REGBIT(ADMUX, MUX1),
 					AVR_IO_REGBIT(ADMUX, MUX2), AVR_IO_REGBIT(ADMUX, MUX3),},
 		.ref = { AVR_IO_REGBIT(ADMUX, REFS0), AVR_IO_REGBIT(ADMUX, REFS1), AVR_IO_REGBIT(ADMUX, REFS2), },
+		.ref_values = {
+				[0] = ADC_VREF_VCC, [1] = ADC_VREF_AVCC,
+				[2] = ADC_VREF_V110, [5] = ADC_VREF_V256,
+				[6] = ADC_VREF_V256,
+		},
+
 		.adlar = AVR_IO_REGBIT(ADMUX, ADLAR),
 		.r_adcsra = ADCSRA,
 		.aden = AVR_IO_REGBIT(ADCSRA, ADEN),
@@ -99,6 +105,19 @@ struct mcu_t SIM_CORENAME = {
 		.bin = AVR_IO_REGBIT(ADCSRB, BIN),
 		.ipr = AVR_IO_REGBIT(ADCSRA, IPR),
 
+		.muxmode = {
+			[0] = AVR_ADC_SINGLE(0), [1] = AVR_ADC_SINGLE(1),
+			[2] = AVR_ADC_SINGLE(2), [3] = AVR_ADC_SINGLE(3),
+
+			[ 4] = AVR_ADC_DIFF(2, 2,   1), [ 5] = AVR_ADC_DIFF(2, 2,  20),
+			[ 6] = AVR_ADC_DIFF(2, 3,   1), [ 7] = AVR_ADC_DIFF(2, 3,  20),
+			[ 8] = AVR_ADC_DIFF(0, 0,   1), [ 9] = AVR_ADC_DIFF(0, 0,  20),
+			[10] = AVR_ADC_DIFF(0, 1,   1), [11] = AVR_ADC_DIFF(0, 1,  20),
+			[12] = AVR_ADC_REF(1100),	// Vbg
+			[13] = AVR_ADC_REF(0),		// GND
+			[15] = AVR_ADC_TEMP(),
+		},
+
 		.adc = {
 			.enable = AVR_IO_REGBIT(ADCSRA, ADIE),
 			.raised = AVR_IO_REGBIT(ADCSRA, ADIF),
diff --git a/simavr/sim/avr_adc.c b/simavr/sim/avr_adc.c
index 781bba3..3657d60 100644
--- a/simavr/sim/avr_adc.c
+++ b/simavr/sim/avr_adc.c
@@ -71,6 +71,12 @@ static uint8_t avr_adc_read_l(struct avr_t * avr, avr_io_addr_t addr, void * par
 	}
 	uint32_t vref = 3300;
 	switch (ref) {
+		case ADC_VREF_VCC:
+			if (!avr->vcc)
+				printf("ADC Warning : missing VCC analog voltage\n");
+			else
+				vref = avr->vcc;
+			break;
 		case ADC_VREF_AREF:
 			if (!avr->aref)
 				printf("ADC Warning : missing AREF analog voltage\n");
diff --git a/simavr/sim/avr_adc.h b/simavr/sim/avr_adc.h
index b86b905..cf4ac38 100644
--- a/simavr/sim/avr_adc.h
+++ b/simavr/sim/avr_adc.h
@@ -67,6 +67,7 @@ typedef struct avr_adc_mux_t {
 
 enum {
 	ADC_VREF_AREF	= 0,	// default mode
+	ADC_VREF_VCC,
 	ADC_VREF_AVCC,
 	ADC_VREF_V110	= 1100,
 	ADC_VREF_V256	= 2560,
-- 
2.39.5