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// Copyright 2021 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package pm_test
import (
"testing"
"bytes"
"fmt"
"strings"
"time"
"pinmap/pm"
)
type genChip struct {
}
func (c *genChip) Name() string {
return "Test"
}
func (c *genChip) EnabledNodes() []string {
return []string{"adc0", "i2c0", "i2c1", "i2c2", "pwm1"}
}
func (c *genChip) Adc(pin string) string {
return pin
}
func (c *genChip) Gpio(pin string) (string, int) {
return fmt.Sprintf("gpio%c", pin[0]), int(pin[1] - '0')
}
func (c *genChip) I2c(pin string) string {
switch pin {
case "B2":
return "i2c2"
case "B3":
return "i2c1"
case "B4":
return "i2c0"
}
panic(fmt.Sprintf("Unknown I2C: %s", pin))
}
func (c *genChip) Pwm(pin string) string {
return "pwm1"
}
func TestGenerate(t *testing.T) {
pins := &pm.Pins{
Adc: []*pm.Pin{
&pm.Pin{pm.ADC, "A1", "EC_ADC_1", "ENUM_ADC_1"},
},
I2c: []*pm.Pin{
&pm.Pin{pm.I2C, "B4", "EC_C_I2C_CLK", "ENUM_I2C_0"},
&pm.Pin{pm.I2C, "B3", "EC_B_I2C_CLK", "ENUM_I2C_1"},
&pm.Pin{pm.I2C, "B2", "EC_A_I2C_CLK", "ENUM_I2C_2"},
},
Gpio: []*pm.Pin{
&pm.Pin{pm.Input, "C3", "EC_IN_1", "ENUM_IN_1"},
&pm.Pin{pm.Output, "D4", "EC_OUT_2", "ENUM_OUT_2"},
&pm.Pin{pm.InputPU, "G7", "EC_IN_3", "ENUM_IN_3"},
&pm.Pin{pm.InputPD, "H8", "EC_IN_4", "ENUM_IN_4"},
},
Pwm: []*pm.Pin{
&pm.Pin{pm.PWM, "E5", "EC_LED_1", "ENUM_LED_1"},
&pm.Pin{pm.PWM_INVERT, "F6", "EC_LED_2", "ENUM_LED_2"},
},
}
var out bytes.Buffer
pm.Generate(&out, pins, &genChip{}, true)
/*
* Rather than doing a golden output text compare, it would be better
* to parse the device tree directly and ensuing it is correct.
* However this would considerably complicate this test.
*/
expFmt :=
`/* Copyright %d The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* This file is auto-generated - do not edit!
*/
/ {
named-adc-channels {
compatible = "named-adc-channels";
adc_ec_adc_1: ec_adc_1 {
label = "EC_ADC_1";
enum-name = "ENUM_ADC_1";
io-channels = <&adc0 A1>;
};
};
named-gpios {
compatible = "named-gpios";
gpio_ec_in_1: ec_in_1 {
gpios = <&gpioC 3 GPIO_INPUT>;
enum-name = "ENUM_IN_1";
};
gpio_ec_in_3: ec_in_3 {
gpios = <&gpioG 7 GPIO_INPUT_PULL_UP>;
enum-name = "ENUM_IN_3";
};
gpio_ec_in_4: ec_in_4 {
gpios = <&gpioH 8 GPIO_INPUT_PULL_DOWN>;
enum-name = "ENUM_IN_4";
};
gpio_ec_out_2: ec_out_2 {
gpios = <&gpioD 4 GPIO_OUTPUT>;
enum-name = "ENUM_OUT_2";
};
};
named-i2c-ports {
compatible = "named-i2c-ports";
i2c_ec_c_i2c_clk: ec_c_i2c_clk {
i2c-port = <&i2c0>;
enum-name = "ENUM_I2C_0";
};
i2c_ec_b_i2c_clk: ec_b_i2c_clk {
i2c-port = <&i2c1>;
enum-name = "ENUM_I2C_1";
};
i2c_ec_a_i2c_clk: ec_a_i2c_clk {
i2c-port = <&i2c2>;
enum-name = "ENUM_I2C_2";
};
};
named-pwms {
compatible = "named-pwms";
pwm_ec_led_1: ec_led_1 {
pwms = <&pwm1 0>;
enum-name = "ENUM_LED_1";
};
pwm_ec_led_2: ec_led_2 {
pwms = <&pwm1 1>;
enum-name = "ENUM_LED_2";
};
};
};
&adc0 {
status = "okay";
};
&i2c0 {
status = "okay";
};
&i2c1 {
status = "okay";
};
&i2c2 {
status = "okay";
};
&pwm1 {
status = "okay";
};
&gpioC {
gpio-line-names =
"",
"",
"",
"ec_in_1";
};
&gpioD {
gpio-line-names =
"",
"",
"",
"",
"ec_out_2";
};
&gpioG {
gpio-line-names =
"",
"",
"",
"",
"",
"",
"",
"ec_in_3";
};
&gpioH {
gpio-line-names =
"",
"",
"",
"",
"",
"",
"",
"",
"ec_in_4";
};
`
exp := fmt.Sprintf(expFmt, time.Now().Year())
got := out.String()
if exp != got {
// Split each string into lines and compare the lines.
expLines := strings.Split(exp, "\n")
gotLines := strings.Split(got, "\n")
if len(expLines) != len(gotLines) {
t.Errorf("Expected %d lines, got %d lines", len(expLines), len(gotLines))
}
for i := range expLines {
if i < len(gotLines) && expLines[i] != gotLines[i] {
t.Errorf("%d: exp %s, got %s", i+1, expLines[i], gotLines[i])
}
}
}
}
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