verilog/rtl/user_defines.v.jinja2

// 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

`default_nettype none

`ifndef __USER_DEFINES_H
// User GPIO initial configuration parameters
`define __USER_DEFINES_H

// deliberately erroneous placeholder value; user required to config GPIO's to other
`define GPIO_MODE_INVALID                  13'hXXXX

// Authoritive source of these MODE defs is: caravel/verilog/rtl/user_defines.v
// Useful GPIO mode values.  These match the names used in defs.h.
//
`define GPIO_MODE_MGMT_STD_INPUT_NOPULL    13'h0403
`define GPIO_MODE_MGMT_STD_INPUT_PULLDOWN  13'h0c01
`define GPIO_MODE_MGMT_STD_INPUT_PULLUP    13'h0801
`define GPIO_MODE_MGMT_STD_OUTPUT          13'h1809
`define GPIO_MODE_MGMT_STD_BIDIRECTIONAL   13'h1801
`define GPIO_MODE_MGMT_STD_ANALOG          13'h000b

`define GPIO_MODE_USER_STD_INPUT_NOPULL    13'h0402
`define GPIO_MODE_USER_STD_INPUT_PULLDOWN  13'h0c00
`define GPIO_MODE_USER_STD_INPUT_PULLUP    13'h0800
`define GPIO_MODE_USER_STD_OUTPUT          13'h1808
`define GPIO_MODE_USER_STD_BIDIRECTIONAL   13'h1800
`define GPIO_MODE_USER_STD_OUT_MONITORED   13'h1802
`define GPIO_MODE_USER_STD_ANALOG          13'h000a

// The power-on configuration for GPIO 0 to 4 is fixed and cannot be
// modified (allowing the SPI and debug to always be accessible unless
// overridden by a flash program).

// The values below can be any of the standard types defined above,
// or they can be any 13-bit value if the user wants a non-standard
// startup state for the GPIO.  By default, every GPIO from 5 to 37
// is set to power up as an input controlled by the management SoC.
// Users may want to redefine these so that the user project powers
// up in a state that can be used immediately without depending on
// the management SoC to run a startup program to configure the GPIOs.

// tiny_user_project i/o
// generated by configure.py
{% for n in range(5, 38) -%}
{%- if io_in_range[0] <= n < io_in_range[1] %}
`define USER_CONFIG_GPIO_{{ n }}_INIT `GPIO_MODE_USER_STD_INPUT_NOPULL
{%- elif io_out_range[0] <= n < io_out_range[1] %}
`define USER_CONFIG_GPIO_{{ n }}_INIT `GPIO_MODE_USER_STD_OUTPUT
{%- else %}
`define USER_CONFIG_GPIO_{{ n }}_INIT `GPIO_MODE_USER_STD_INPUT_PULLDOWN
{%- endif -%}
{% endfor %}

`endif // __USER_DEFINES_H