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// Copyright 2021 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package main
import (
"flag"
"fmt"
"os"
_ "pinmap/chips"
"pinmap/pm"
_ "pinmap/readers/csv"
)
var chipFlag = flag.String("chip", "", "Chip to use for pinmap")
var output = flag.String("output", "gpio.dts", "Output file")
var reader = flag.String("reader", "csv", "Input source type")
var names = flag.Bool("names", false, "Generate gpio-line-names")
var force = flag.Bool("force", false, "Overwrite output file")
var column = flag.String("column", "", "Spreadsheet column index (A-Z) to use for chip pins")
func main() {
flag.Usage = Usage
flag.Parse()
if len(flag.Args()) == 0 {
Error("No input arguments")
}
chip := pm.FindChip(*chipFlag)
if chip == nil {
Error(fmt.Sprintf("No matching chip for '%s'", *chipFlag))
}
pins, err := pm.ReadPins(*reader, *column, flag.Arg(0))
if err != nil {
Error(fmt.Sprintf("%s - %s: %v", *reader, flag.Arg(0), err))
}
if !*force && fileExists(*output) {
Error(fmt.Sprintf("%s already exists - use --force to overwrite", *output))
}
out, err := os.Create(*output)
defer out.Close()
if err != nil {
Error(fmt.Sprintf("Failed to create %s: %v", *output, err))
}
pm.Generate(out, pins, chip, *names)
}
// fileExists returns true if the file currently exists.
func fileExists(name string) bool {
_, err := os.Stat(name)
return err == nil
}
// Error prints an error message to stderr and prints the usage.
func Error(msg string) {
fmt.Fprintf(os.Stderr, "%s\n", msg)
Usage()
}
// Usage prints the usage of the command.
func Usage() {
fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
fmt.Fprintf(os.Stderr, "%s [ flags ] input-argument\n", os.Args[0])
flag.PrintDefaults()
fmt.Fprintf(os.Stderr, "Available chips are:\n")
for _, c := range pm.Chips() {
fmt.Fprintf(os.Stderr, "%s\n", c)
}
fmt.Fprintf(os.Stderr, "Available readers are:\n")
for _, r := range pm.Readers() {
fmt.Fprintf(os.Stderr, "%s\n", r)
}
os.Exit(1)
}
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