RASCSI/cpp/scsiloop/scsiloop_gpio.h

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//---------------------------------------------------------------------------
//
// SCSI Target Emulator PiSCSI for Raspberry Pi
// Loopback tester utility
//
// Copyright (C) 2022 akuker
//
//---------------------------------------------------------------------------
#include <map>
#include <string>
#include <vector>
#include "hal/gpiobus.h"
using namespace std;
class ScsiLoop_GPIO
{
public:
ScsiLoop_GPIO();
~ScsiLoop_GPIO() = default;
int RunLoopbackTest(vector<string> &error_list);
int RunDataInputTest(vector<string> &error_list);
int RunDataOutputTest(vector<string> &error_list);
void Cleanup();
private:
struct loopback_connections_struct {
int this_pin;
int connected_pin;
int dir_ctrl_pin;
};
using loopback_connection = loopback_connections_struct;
std::map<int, string> pin_name_lookup;
std::vector<loopback_connection> loopback_conn_table;
void set_dtd_out();
void set_dtd_in();
void set_ind_out();
void set_ind_in();
void set_tad_out();
void set_tad_in();
void set_output_channel(int out_gpio);
void loopback_setup();
int test_gpio_pin(loopback_connection &gpio_rec, vector<string> &error_list, bool &loopback_adapter_missing);
void set_dat_inputs_loop(uint8_t value);
void dat_input_test_setup();
void dat_output_test_setup();
uint8_t get_dat_outputs_loop();
int local_pin_dtd = -1;
int local_pin_tad = -1;
int local_pin_ind = -1;
int local_pin_ack = -1;
int local_pin_sel = -1;
int local_pin_atn = -1;
int local_pin_rst = -1;
int local_pin_cd = -1;
int local_pin_io = -1;
int local_pin_msg = -1;
int local_pin_req = -1;
int local_pin_bsy = -1;
int local_pin_dt0 = -1;
int local_pin_dt1 = -1;
int local_pin_dt2 = -1;
int local_pin_dt3 = -1;
int local_pin_dt4 = -1;
int local_pin_dt5 = -1;
int local_pin_dt6 = -1;
int local_pin_dt7 = -1;
int local_pin_dp = -1;
shared_ptr<BUS> bus;
};