/*
 * SPDX-FileCopyrightText: 2020 Efabless Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * SPDX-License-Identifier: Apache-2.0
 */

// This include is relative to $CARAVEL_PATH (see Makefile)
#include <defs.h>
//#include <stub.c>

// --------------------------------------------------------

void main()
{
    // The upper GPIO pins are configured to be output
    // and accessble to the management SoC.
    // Used to flag the start/end of a test
    // The lower GPIO pins are configured to be output
    // and accessible to the user project.  They show
    // the project count value, although this test is
    // designed to read the project count through the
    // logic analyzer probes.
    // I/O 6 is configured for the UART Tx line

    // User USB
    reg_mprj_io_37 = GPIO_MODE_USER_STD_BIDIRECTIONAL;
    reg_mprj_io_36 = GPIO_MODE_USER_STD_BIDIRECTIONAL;
    reg_mprj_io_35 = GPIO_MODE_USER_STD_OUTPUT;

    // User UART
    reg_mprj_io_33 = GPIO_MODE_USER_STD_OUTPUT;
    reg_mprj_io_34 = GPIO_MODE_USER_STD_INPUT_NOPULL;

    // MGMT GPIO
    reg_mprj_io_32 = GPIO_MODE_MGMT_STD_OUTPUT;

    reg_mprj_io_31 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_30 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_29 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_28 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_27 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_26 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_25 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_24 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_23 = GPIO_MODE_MGMT_STD_OUTPUT; 
    reg_mprj_io_22 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_21 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_20 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_19 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_18 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_17 = GPIO_MODE_MGMT_STD_OUTPUT;
    reg_mprj_io_16 = GPIO_MODE_MGMT_STD_OUTPUT;

    //User COUNTER
    reg_mprj_io_15 = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_14 = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_13 = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_12 = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_11 = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_10 = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_9  = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_8  = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_7  = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_6  = GPIO_MODE_USER_STD_OUT_MONITORED;
    //reg_mprj_io_6  = GPIO_MODE_MGMT_STD_OUTPUT;//mgmt_uart_tx
    reg_mprj_io_5  = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_4  = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_3  = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_2  = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_1  = GPIO_MODE_USER_STD_OUT_MONITORED;
    reg_mprj_io_0  = GPIO_MODE_USER_STD_OUT_MONITORED;

	// Set UART clock to 64 kbaud (enable before I/O configuration)
	// reg_uart_clkdiv = 625;
	//reg_uart_enable = 1;

    /* Apply configuration */
    //reg_mprj_xfer = 1;
    //while (reg_mprj_xfer == 1);

    // Configure LA probes [31:0], [127:64] as inputs to the cpu
    // Configure LA probes [63:32] as outputs from the cpu
    //reg_la0_oenb = reg_la0_iena = 0x00000000;    // [31:0]
	//reg_la1_oenb = reg_la1_iena = 0xFFFFFFFF;    // [63:32]
	//reg_la2_oenb = reg_la2_iena = 0x00000000;    // [95:64]
	//reg_la3_oenb = reg_la3_iena = 0x00000000;    // [127:96]

    // Flag start of the test
    //reg_mprj_datal = 0xAB400000;

    // Set Counter value to zero through LA probes [63:32]
    //reg_la1_data = 0x00000000;

    // Configure LA probes from [63:32] as inputs to disable counter write
    //reg_la1_oenb = reg_la1_iena = 0x00000000; 

    //reg_mprj_datal = 0xAB410000;

	//print("Test\n\n");
	//print("\n");
	//print("\n");

    // Flag end of the test
    //reg_mprj_datal = 0xAB510000;

    //TODO: Turn on PLL for clock2
}