Adds GPIO access from terminal for fallback image required for IO testings. Updated the test script to Python3.

Author: Marcelo Vicente

Vivado/ipmc_zynq_vivado.sdk/IPMC/src/ipmc.cpp

@@ -42,7 +42,6 @@
 #include "xscutimer.h"
 #include "xscugic.h"
 #include "xil_exception.h"
-#include "xgpiops.h"
 
 /* Include drivers */
 #include <drivers/ad7689/ad7689.h>
@@ -106,6 +105,7 @@
 // Application specific variables
 std::vector<AD7689*> adc;
 PSXADC *xadc		= nullptr;
+GPIO *gpio[6]		= {nullptr};
 
 Network *network			= nullptr;
 TelnetServer *telnet		= nullptr;
@@ -168,6 +168,36 @@ void driverInit() {
 
 	xadc = new PSXADC(XPAR_XADCPS_0_DEVICE_ID);
 	if (!xadc) throw std::runtime_error("Failed to create xadc instance");
+
+	gpio[4] = new PSGPIO(XPAR_PS7_GPIO_0_DEVICE_ID, {10,11,12,13});
+	gpio[5] = new PSGPIO(XPAR_PS7_GPIO_0_DEVICE_ID, {39,40,41,45,47,48,49,50});
+
+	for (int i = 0; i < 4; i++) {
+		gpio[i] = new PLGPIO(PLGPIO::CHANNEL1, XPAR_AXI_GPIO_0_DEVICE_ID + i);
+	}
+
+	class EnableIOTesting final : public CommandParser::Command {
+	public:
+		EnableIOTesting() {};
+
+		virtual std::string getHelpText(const std::string &command) const {
+			return command + "\n\nExposes GPIO read/write/direction API for IO testing, USE WITH CARE.\n";
+		}
+
+		virtual void execute(std::shared_ptr<ConsoleSvc> console, const CommandParser::CommandParameters &parameters) {
+			static bool is_io_testing_enabled = false;
+
+			if (!is_io_testing_enabled) {
+				for (int i = 0; i < 6; i++) {
+					gpio[i]->registerConsoleCommands(console_command_parser, stdsprintf("gpio%d.", i));
+				}
+
+				is_io_testing_enabled = true;
+			}
+		}
+	};
+
+	console_command_parser.registerCommand("enable_io_testing", std::make_shared<EnableIOTesting>());
 }
 
 

test-suite.py

@@ -233,11 +233,15 @@ def gpio_absn_to_interface(absn):
     (243, 243),
 }
 
+def enable_io_testing(serial):
+    serial.write("enable_io_testing\r".encode())
+    serial.readline()
+
 def gpio_get_direction(serial, gpio):
     t = "gpio" + str(gpio) + ".direction\r"
     serial.write(t.encode())
     serial.readline()
-    r = serial.readline()
+    r = serial.readline().decode('utf-8')
     hex = r.split("0x")[1].split("\r")[0]
     return int(hex, 16)
 
@@ -258,15 +262,15 @@ def gpio_read(serial, gpio):
     t = "gpio" + str(gpio) + ".read\r"
     serial.write(t.encode())
     serial.readline()
-    r = serial.readline()
+    r = serial.readline().decode('utf-8')
     hex = r.split("0x")[1].split("\r")[0]
     return int(hex, 16)
 
 def gpio_read_bit(serial, gpio, bit):
     t = "gpio" + str(gpio) + ".read\r"
     serial.write(t.encode())
     serial.readline()
-    r = serial.readline()
+    r = serial.readline().decode('utf-8')
     hex = r.split("0x")[1].split("\r")[0]
     return ((int(hex, 16) & (1 << bit)) != 0)
 
@@ -489,6 +493,9 @@ def main():
 
     results = [0, 0, []]
 
+    enable_io_testing(ipmc)
+    enable_io_testing
+
     test1 = run_hwaddr_test(ipmc)
     test2 = run_pinshort_test(ipmc)
     test3 = run_continuity_test(ipmc, ctrl)