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Removed the usage of the saving of PORTA, also removed params from Enable func.

This commit is contained in:
jakeg00dwin 2024-07-28 16:45:07 -07:00
parent 9e750af5bf
commit ac6b93b49e
3 changed files with 22 additions and 71 deletions
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26
src/ADC/ADC.c
View File

@ -15,9 +15,6 @@
#define MAX_PIN_NUM 7
static uint8_t porta_out;
static uint8_t porta_dir;
static bool IsInvalidPin(uint8_t pin_num){
if(pin_num > MAX_PIN_NUM){
return true;
@ -52,15 +49,12 @@ void ADC_Init(uint8_t pin_num)
if(IsInvalidPin(pin_num)){return;}
//Save the porta status.
porta_out = RegEdit_ReadReg((void *) &PORTA.OUT);
porta_dir = RegEdit_ReadReg((void *) &PORTA.DIR);
//set the direction to input
RegEdit_SetBit((void *) &PORTA.DIRCLR, pin_num);
RegEdit_ClearBit((void *) &PORTA.DIR, pin_num);
//Disable the pull-up resistor
RegEdit_SetBit((void *) &PORTA.OUTCLR, pin_num);
RegEdit_ClearBit((void *) &PORTA.OUT, pin_num);
//Disable input buffer
//We do some kinda nasty address addition but it saves
@ -73,13 +67,8 @@ void ADC_Init(uint8_t pin_num)
}
void ADC_Enable(uint8_t pin_num)
void ADC_Enable(void)
{
if(IsInvalidPin(pin_num)){return;}
//Use muxpos to select pins for ADC to connect.
RegEdit_OR_Num((void *) &ADC0.MUXPOS, pin_num);
//Set the enable bit in the CTRLA register
RegEdit_SetBit((void *) &ADC0.CTRLA, 0);
}
@ -87,24 +76,19 @@ void ADC_Enable(uint8_t pin_num)
void ADC_Disable()
{
//Set for no ADC connections.
RegEdit_ClearRegister((void *) &ADC0.MUXPOS);
//Clear the enable ADC flag
RegEdit_ClearBit((void *) &ADC0.CTRLA, 0);
//Restore the port registers
RegEdit_SetNum((void *) &PORTA.OUT, porta_out);
RegEdit_SetNum((void *) &PORTA.DIR, porta_dir);
}
void ADC_SetPin(uint8_t pin_num)
{
if(IsInvalidPin(pin_num)){return;}
RegEdit_ClearRegister((void *) &ADC0.MUXPOS);
RegEdit_SetNum((void *) &ADC0.MUXPOS, pin_num);
}
uint16_t ADC_ReadValue_Impl(uint8_t pin_num)
{
RegEdit_SetNum((void *) &ADC0.COMMAND, ADC_STCONV_bm);

3
src/ADC/ADC.h
View File

@ -32,9 +32,8 @@ void ADC_Init(uint8_t pin_num);
/**
* @brief Enables the ADC
* @param pin_num The number of the pin 0-7 you are enabling
*/
void ADC_Enable(uint8_t pin_num);
void ADC_Enable(void);
/**

64
tests/ADC/test_ADC.cpp
View File

@ -37,15 +37,6 @@ TEST(test_ADC, FirstTest)
CHECK(true);
}
static void ADCStoresPortState(void){
mock().expectOneCall("RegEdit_ReadReg")
.withPointerParameter("reg", (void *) &PORTA.OUT)
.andReturnValue(0xFF);
mock().expectOneCall("RegEdit_ReadReg")
.withPointerParameter("reg", (void *) &PORTA.DIR)
.andReturnValue(0xFF);
}
TEST(test_ADC, ADC_SetupSetsRegisters)
{
@ -84,16 +75,14 @@ TEST(test_ADC, ADC_SetupSetsRegisters)
TEST(test_ADC, ADC_InitPortAPin7UsesCorrectRegisters)
{
ADCStoresPortState();
//Check for setting the direction to input.
mock().expectOneCall("RegEdit_SetBit")
.withPointerParameter("reg", (void *) &PORTA.DIRCLR)
mock().expectOneCall("RegEdit_ClearBit")
.withPointerParameter("reg", (void *) &PORTA.DIR)
.withUnsignedIntParameter("bit_num", 7);
//Check that the pullup is off
mock().expectOneCall("RegEdit_SetBit")
.withPointerParameter("reg", (void *) &PORTA.OUTCLR)
mock().expectOneCall("RegEdit_ClearBit")
.withPointerParameter("reg", (void *) &PORTA.OUT)
.withUnsignedIntParameter("bit_num", 7);
//Set the ISC(input sense config) to disable digital input
@ -109,16 +98,14 @@ TEST(test_ADC, ADC_InitPortAPin7UsesCorrectRegisters)
TEST(test_ADC, ADC_InitPortAPin0UsesCorrectRegisters)
{
ADCStoresPortState();
//Check for setting the direction to input.
mock().expectOneCall("RegEdit_SetBit")
.withPointerParameter("reg", (void *) &PORTA.DIRCLR)
mock().expectOneCall("RegEdit_ClearBit")
.withPointerParameter("reg", (void *) &PORTA.DIR)
.withUnsignedIntParameter("bit_num", 0);
//Check that the pullup is off
mock().expectOneCall("RegEdit_SetBit")
.withPointerParameter("reg", (void *) &PORTA.OUTCLR)
mock().expectOneCall("RegEdit_ClearBit")
.withPointerParameter("reg", (void *) &PORTA.OUT)
.withUnsignedIntParameter("bit_num", 0);
//Set the ISC(input sense config) to disable digital input
@ -137,47 +124,22 @@ TEST(test_ADC, ADC_InitDoesNothingOnHighPinNumbers)
ADC_Init(8);
}
TEST(test_ADC, ADC_EnableSuccessOnPin7)
TEST(test_ADC, ADC_EnablePasses)
{
//Set the MUXPOS or the ADC pin stuff.
mock().expectOneCall("RegEdit_OR_Num")
.withPointerParameter("reg", (void *) &ADC0.MUXPOS)
.withUnsignedIntParameter("num", ADC_MUXPOS_AIN7_gc);
mock().expectOneCall("RegEdit_SetBit")
.withPointerParameter("reg", (void *) &ADC0.CTRLA)
.withUnsignedIntParameter("bit_num", 0);
ADC_Enable(7);
ADC_Enable();
}
TEST(test_ADC, ADC_EnableNothingOnHighPinNumbers)
{
mock().expectNoCall("RegEdit_SetBit");
ADC_Enable(8);
}
TEST(test_ADC, ADC_DisablePasses)
{
//Clears the muxpos register
mock().expectOneCall("RegEdit_ClearRegister")
.withPointerParameter("reg", (void *) &ADC0.MUXPOS);
mock().expectOneCall("RegEdit_ClearBit")
.withPointerParameter("reg", (void *) &ADC0.CTRLA)
.withUnsignedIntParameter("bit_num", 0);
mock().expectOneCall("RegEdit_SetNum")
.withPointerParameter("reg", (void*) &PORTA.OUT)
.ignoreOtherParameters();
mock().expectOneCall("RegEdit_SetNum")
.withPointerParameter("reg", (void*) &PORTA.DIR)
.ignoreOtherParameters();
ADC_Disable();
}
@ -197,6 +159,12 @@ TEST(test_ADC, ADC_SetPinSetsRightRegisters)
}
TEST(test_ADC, ADC_SetPinFailsOnInvalidPin)
{
ADC_SetPin(8);
}
static uint16_t ADC_ReadValueFake(uint8_t pin_num)
{
return 512;