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Basic data capture works

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This commit is contained in:
akuker
2020-07-18 13:34:29 -05:00
parent 3fb3ee7d7f
commit efa01e1e10
5 changed files with 551 additions and 206 deletions
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173
src/raspberrypi/gpiobus.cpp
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@@ -65,7 +65,7 @@ DWORD bcm_host_get_peripheral_address(void)
char buf[1024];
size_t len = sizeof(buf);
DWORD address;
if (sysctlbyname("hw.model", buf, &len, NULL, 0) ||
strstr(buf, "ARM1176JZ-S") != buf) {
// Failed to get CPU model || Not BCM2835
@@ -88,7 +88,7 @@ extern uint32_t RPi_IO_Base_Addr;
// Core frequency
extern uint32_t RPi_Core_Freq;
#ifdef USE_SEL_EVENT_ENABLE
#ifdef USE_SEL_EVENT_ENABLE
//---------------------------------------------------------------------------
//
// Interrupt control function
@@ -460,6 +460,7 @@ void FASTCALL GPIOBUS::Reset()
SetMode(PIN_SEL, IN);
SetMode(PIN_ATN, IN);
SetMode(PIN_ACK, IN);
printf("ACK is set to IN\n");
SetMode(PIN_RST, IN);
// Set data bus signals to input
@@ -488,6 +489,7 @@ void FASTCALL GPIOBUS::Reset()
SetControl(PIN_IND, IND_OUT);
SetMode(PIN_SEL, OUT);
SetMode(PIN_ATN, OUT);
printf("ACK is set to OUT\n");
SetMode(PIN_ACK, OUT);
SetMode(PIN_RST, OUT);
@@ -508,6 +510,8 @@ void FASTCALL GPIOBUS::Reset()
signals = 0;
}
static DWORD high_bits = 0x0;
static DWORD low_bits = 0xFFFFFFFF;
//---------------------------------------------------------------------------
//
// Bus signal acquisition
@@ -517,11 +521,22 @@ DWORD FASTCALL GPIOBUS::Aquire()
{
signals = *level;
DWORD prev_high = high_bits;
DWORD prev_low = low_bits;
high_bits |= signals;
low_bits &= signals;
if ((high_bits != prev_high) || (low_bits != prev_low))
{
printf(" %08lX %08lX\n",high_bits, low_bits);
}
#if SIGNAL_CONTROL_MODE < 2
// Invert if negative logic (internal processing is unified to positive logic)
signals = ~signals;
#endif // SIGNAL_CONTROL_MODE
return signals;
}
@@ -552,36 +567,36 @@ BOOL FASTCALL GPIOBUS::GetBSY()
//---------------------------------------------------------------------------
void FASTCALL GPIOBUS::SetBSY(BOOL ast)
{
// Set BSY signal
SetSignal(PIN_BSY, ast);
if (actmode == TARGET) {
if (ast) {
// Turn on ACTIVE signal
SetControl(PIN_ACT, ACT_ON);
// Set Target signal to output
SetControl(PIN_TAD, TAD_OUT);
SetMode(PIN_BSY, OUT);
SetMode(PIN_MSG, OUT);
SetMode(PIN_CD, OUT);
SetMode(PIN_REQ, OUT);
SetMode(PIN_IO, OUT);
} else {
// Turn off the ACTIVE signal
SetControl(PIN_ACT, ACT_OFF);
// Set the target signal to input
SetControl(PIN_TAD, TAD_IN);
SetMode(PIN_BSY, IN);
SetMode(PIN_MSG, IN);
SetMode(PIN_CD, IN);
SetMode(PIN_REQ, IN);
SetMode(PIN_IO, IN);
}
}
// // Set BSY signal
// SetSignal(PIN_BSY, ast);
//
// if (actmode == TARGET) {
// if (ast) {
// // Turn on ACTIVE signal
// SetControl(PIN_ACT, ACT_ON);
//
// // Set Target signal to output
// SetControl(PIN_TAD, TAD_OUT);
//
// SetMode(PIN_BSY, OUT);
// SetMode(PIN_MSG, OUT);
// SetMode(PIN_CD, OUT);
// SetMode(PIN_REQ, OUT);
// SetMode(PIN_IO, OUT);
// } else {
// // Turn off the ACTIVE signal
// SetControl(PIN_ACT, ACT_OFF);
//
// // Set the target signal to input
// SetControl(PIN_TAD, TAD_IN);
//
// SetMode(PIN_BSY, IN);
// SetMode(PIN_MSG, IN);
// SetMode(PIN_CD, IN);
// SetMode(PIN_REQ, IN);
// SetMode(PIN_IO, IN);
// }
// }
}
//---------------------------------------------------------------------------
@@ -601,13 +616,13 @@ BOOL FASTCALL GPIOBUS::GetSEL()
//---------------------------------------------------------------------------
void FASTCALL GPIOBUS::SetSEL(BOOL ast)
{
if (actmode == INITIATOR && ast) {
// Turn on ACTIVE signal
SetControl(PIN_ACT, ACT_ON);
}
// Set SEL signal
SetSignal(PIN_SEL, ast);
// if (actmode == INITIATOR && ast) {
// // Turn on ACTIVE signal
// SetControl(PIN_ACT, ACT_ON);
// }
//
// // Set SEL signal
// SetSignal(PIN_SEL, ast);
}
//---------------------------------------------------------------------------
@@ -627,7 +642,7 @@ BOOL FASTCALL GPIOBUS::GetATN()
//---------------------------------------------------------------------------
void FASTCALL GPIOBUS::SetATN(BOOL ast)
{
SetSignal(PIN_ATN, ast);
// SetSignal(PIN_ATN, ast);
}
//---------------------------------------------------------------------------
@@ -647,7 +662,7 @@ BOOL FASTCALL GPIOBUS::GetACK()
//---------------------------------------------------------------------------
void FASTCALL GPIOBUS::SetACK(BOOL ast)
{
SetSignal(PIN_ACK, ast);
//SetSignal(PIN_ACK, ast);
}
//---------------------------------------------------------------------------
@@ -667,7 +682,7 @@ BOOL FASTCALL GPIOBUS::GetRST()
//---------------------------------------------------------------------------
void FASTCALL GPIOBUS::SetRST(BOOL ast)
{
SetSignal(PIN_RST, ast);
//SetSignal(PIN_RST, ast);
}
//---------------------------------------------------------------------------
@@ -687,7 +702,7 @@ BOOL FASTCALL GPIOBUS::GetMSG()
//---------------------------------------------------------------------------
void FASTCALL GPIOBUS::SetMSG(BOOL ast)
{
SetSignal(PIN_MSG, ast);
//SetSignal(PIN_MSG, ast);
}
//---------------------------------------------------------------------------
@@ -707,7 +722,7 @@ BOOL FASTCALL GPIOBUS::GetCD()
//---------------------------------------------------------------------------
void FASTCALL GPIOBUS::SetCD(BOOL ast)
{
SetSignal(PIN_CD, ast);
//SetSignal(PIN_CD, ast);
}
//---------------------------------------------------------------------------
@@ -805,7 +820,7 @@ BOOL FASTCALL GPIOBUS::GetREQ()
//---------------------------------------------------------------------------
void FASTCALL GPIOBUS::SetREQ(BOOL ast)
{
SetSignal(PIN_REQ, ast);
// SetSignal(PIN_REQ, ast);
}
//---------------------------------------------------------------------------
@@ -839,36 +854,36 @@ BYTE FASTCALL GPIOBUS::GetDAT()
void FASTCALL GPIOBUS::SetDAT(BYTE dat)
{
// Write to port
#if SIGNAL_CONTROL_MODE == 0
DWORD fsel;
fsel = gpfsel[0];
fsel &= tblDatMsk[0][dat];
fsel |= tblDatSet[0][dat];
if (fsel != gpfsel[0]) {
gpfsel[0] = fsel;
gpio[GPIO_FSEL_0] = fsel;
}
fsel = gpfsel[1];
fsel &= tblDatMsk[1][dat];
fsel |= tblDatSet[1][dat];
if (fsel != gpfsel[1]) {
gpfsel[1] = fsel;
gpio[GPIO_FSEL_1] = fsel;
}
fsel = gpfsel[2];
fsel &= tblDatMsk[2][dat];
fsel |= tblDatSet[2][dat];
if (fsel != gpfsel[2]) {
gpfsel[2] = fsel;
gpio[GPIO_FSEL_2] = fsel;
}
#else
gpio[GPIO_CLR_0] = tblDatMsk[dat];
gpio[GPIO_SET_0] = tblDatSet[dat];
#endif // SIGNAL_CONTROL_MODE
//#if SIGNAL_CONTROL_MODE == 0
// DWORD fsel;
//
// fsel = gpfsel[0];
// fsel &= tblDatMsk[0][dat];
// fsel |= tblDatSet[0][dat];
// if (fsel != gpfsel[0]) {
// gpfsel[0] = fsel;
// gpio[GPIO_FSEL_0] = fsel;
// }
//
// fsel = gpfsel[1];
// fsel &= tblDatMsk[1][dat];
// fsel |= tblDatSet[1][dat];
// if (fsel != gpfsel[1]) {
// gpfsel[1] = fsel;
// gpio[GPIO_FSEL_1] = fsel;
// }
//
// fsel = gpfsel[2];
// fsel &= tblDatMsk[2][dat];
// fsel |= tblDatSet[2][dat];
// if (fsel != gpfsel[2]) {
// gpfsel[2] = fsel;
// gpio[GPIO_FSEL_2] = fsel;
// }
//#else
// gpio[GPIO_CLR_0] = tblDatMsk[dat];
// gpio[GPIO_SET_0] = tblDatSet[dat];
//#endif // SIGNAL_CONTROL_MODE
}
//---------------------------------------------------------------------------
@@ -1155,7 +1170,7 @@ int FASTCALL GPIOBUS::SendHandShake(BYTE *buf, int count)
}
// Already waiting for REQ assertion
// Assert the ACK signal
SetSignal(PIN_ACK, ON);
@@ -1399,7 +1414,7 @@ void FASTCALL GPIOBUS::SetMode(int pin, int mode)
gpio[index] = data;
gpfsel[index] = data;
}
//---------------------------------------------------------------------------
//
// Get input signal value
@@ -1409,7 +1424,7 @@ BOOL FASTCALL GPIOBUS::GetSignal(int pin)
{
return (signals >> pin) & 1;
}
//---------------------------------------------------------------------------
//
// Set output signal value