add more make targets

.gitignore

@@ -1,3 +1,5 @@
+.idea
+
 ### JetBrains template
 # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
 # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839

Makefile

@@ -0,0 +1,9 @@
+GOK := gok -i display
+run:
+	${GOK} run
+update:
+	${GOK} update
+logs:
+	${GOK} logs -s display-epaper
+get:
+	${GOK} get --update_all

epd/epd.go

@@ -50,11 +50,11 @@ func New() (*EPD, error) {
 
 func (e *EPD) reset() {
 	e.resetPin.Out(gpio.High)
-	time.Sleep(200 * time.Millisecond)
+	time.Sleep(20 * time.Millisecond)
 	e.resetPin.Out(gpio.Low)
-	time.Sleep(4 * time.Millisecond)
+	time.Sleep(2 * time.Millisecond)
 	e.resetPin.Out(gpio.High)
-	time.Sleep(200 * time.Millisecond)
+	time.Sleep(20 * time.Millisecond)
 }
 
 func (e *EPD) sendCommand(cmd byte) {
@@ -96,10 +96,8 @@ func (e *EPD) sendDataSlice(data []byte) {
 			log.Fatalf("writing to spi: %v", err)
 		}
 		e.csPin.Out(gpio.High)
-		log.Printf("sent chunk %v\n", cursor)
 		cursor = min(cursor+maxSize, toSend)
 	}
-	log.Printf("sent chunk %v\n", cursor)
 }
 
 func (e *EPD) spiWrite(write []byte) ([]byte, error) {
@@ -114,13 +112,11 @@ func (e *EPD) spiWrite(write []byte) ([]byte, error) {
 
 func (e *EPD) readBusy() {
 	e.sendCommand(0x71)
-	busy := e.busyPin.Read()
-	for busy == gpio.Low {
+	for e.busyPin.Read() == gpio.Low {
+		time.Sleep(20 * time.Millisecond)
 		e.sendCommand(0x71)
-		busy = e.busyPin.Read()
-		time.Sleep(200 * time.Millisecond)
 	}
-	time.Sleep(200 * time.Millisecond)
+	time.Sleep(20 * time.Millisecond)
 }
 
 func (e *EPD) turnOn() error {
@@ -163,18 +159,18 @@ func (e *EPD) Init() error {
 
 	e.reset()
 
-	e.sendCommand(0x01)
-	e.sendDataSlice([]byte{0x07, 0x07, 0x3f, 0x3f})
-
 	e.sendCommand(0x06)
 	e.sendDataSlice([]byte{0x17, 0x17, 0x28, 0x17})
 
+	e.sendCommand(0x01)
+	e.sendDataSlice([]byte{0x07, 0x07, 0x28, 0x17})
+
 	e.sendCommand(0x04)
 	time.Sleep(100 * time.Millisecond)
 	e.readBusy()
 
 	e.sendCommand(0x00)
-	e.sendData(0x0f)
+	e.sendData(0x1f)
 
 	e.sendCommand(0x61)
 	e.sendDataSlice([]byte{0x03, 0x20, 0x01, 0xe0})
@@ -183,7 +179,7 @@ func (e *EPD) Init() error {
 	e.sendData(0x00)
 
 	e.sendCommand(0x50)
-	e.sendDataSlice([]byte{0x11, 0x07})
+	e.sendDataSlice([]byte{0x10, 0x07})
 
 	e.sendCommand(0x60)
 	e.sendData(0x22)
@@ -201,7 +197,10 @@ func (e *EPD) InitFast() error {
 	e.reset()
 
 	e.sendCommand(0x00)
-	e.sendData(0x0f)
+	e.sendData(0x1f)
+
+	e.sendCommand(0x50)
+	e.sendDataSlice([]byte{0x10, 0x07})
 
 	e.sendCommand(0x04)
 	time.Sleep(100 * time.Millisecond)
@@ -216,15 +215,12 @@ func (e *EPD) InitFast() error {
 	e.sendCommand(0xe5)
 	e.sendData(0x5a)
 
-	e.sendCommand(0x50)
-	e.sendDataSlice([]byte{0x11, 0x07})
-
 	return nil
 }
 
 func (e *EPD) Clear() {
 	log.Println("clearing epd")
-	e.Fill(White)
+	e.Send(image.White)
 }
 
 func (e *EPD) Refresh() {
@@ -263,43 +259,15 @@ func (e *EPD) turnOff() error {
 	return nil
 }
 
-type Color int
-
-const (
-	White Color = iota
-	Red
-	Black
-)
-
-func (e *EPD) Fill(c Color) {
-	log.Println("filling...")
-
-	switch c {
-	case White:
-		e.Send(image.White, image.Black)
-	case Black:
-		e.Send(image.Black, image.Black)
-	case Red:
-		e.Send(image.White, image.White)
+func (e *EPD) Send(img image.Image) {
+	if img == nil {
+		log.Println("empty img")
+		return
 	}
-}
 
-func (e *EPD) Send(black image.Image, red image.Image) {
-	if black != nil {
-		log.Println("sending black")
-		e.sendCommand(0x10) // write bw data
-		e.sendImg(black)
-	}
-	if red != nil {
-		log.Println("sending red")
-		e.sendCommand(0x13) // write red data
-		e.sendImg(red)
-	}
-}
-
-func (e *EPD) sendImg(img image.Image) {
 	log.Println("sending img...")
-	// TODO check img size
+	toSend := make([]byte, 0, e.height*e.width/8)
+	toSend2 := make([]byte, 0, e.height*e.width/8)
 	for row := 0; row < e.height; row++ {
 		for col := 0; col < e.width; col += 8 {
 			// this loop converts individual pixels into a single byte
@@ -311,9 +279,16 @@ func (e *EPD) sendImg(img image.Image) {
 					b &= ^(0x80 >> (px % 8))
 				}
 			}
-			e.sendData(b)
+			toSend = append(toSend, ^b)
+			toSend2 = append(toSend2, b)
 		}
 	}
+
+	e.sendCommand(0x10)
+	e.sendDataSlice(toSend2)
+
+	e.sendCommand(0x13)
+	e.sendDataSlice(toSend)
 }
 
 func isdark(r, g, b, _ uint32) bool {

img.go

@@ -17,6 +17,7 @@ import (
 	"math"
 	"strconv"
 	"strings"
+	"sync"
 	"time"
 )
 
@@ -35,26 +36,83 @@ func getBlack(
 	feteClient *fete.Client,
 	weatherClient *weather.Client,
 ) (*image.RGBA, error) {
-	bus, err := transportsClient.GetTCLPassages(ctx, 290)
-	if err != nil {
-		log.Println("error getting bus:", err)
-	}
-	tram, err := transportsClient.GetTCLPassages(ctx, 34068)
-	if err != nil {
-		log.Println("error getting tram:", err)
-	}
-	velovRoc, err := transportsClient.GetVelovStation(ctx, 10044)
-	if err != nil {
-		log.Println("error getting velov:", err)
-	}
-	fetes, err := feteClient.GetFete(ctx, nowFunc())
-	if err != nil {
-		log.Println("error getting fetes:", err)
-	}
-	wthr, err := weatherClient.GetWeather(ctx)
-	if err != nil {
-		log.Println("error getting weather:", err)
-	}
+	var (
+		bus      *transports.Passages
+		tram     *transports.Passages
+		velovRoc *transports.Station
+		fetes    *fete.Fete
+		wthr     *weather.Prevision
+	)
+
+	wg := &sync.WaitGroup{}
+	wg.Add(5)
+
+	go func() {
+		defer wg.Done()
+
+		ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
+		defer cancel()
+
+		var err error
+
+		bus, err = transportsClient.GetTCLPassages(ctx, 290)
+		if err != nil {
+			log.Println("error getting bus:", err)
+		}
+	}()
+	go func() {
+		defer wg.Done()
+
+		ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
+		defer cancel()
+
+		var err error
+
+		tram, err = transportsClient.GetTCLPassages(ctx, 34068)
+		if err != nil {
+			log.Println("error getting tram:", err)
+		}
+	}()
+	go func() {
+		defer wg.Done()
+
+		ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
+		defer cancel()
+
+		var err error
+
+		velovRoc, err = transportsClient.GetVelovStation(ctx, 10044)
+		if err != nil {
+			log.Println("error getting velov:", err)
+		}
+	}()
+	go func() {
+		defer wg.Done()
+
+		ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
+		defer cancel()
+
+		var err error
+
+		fetes, err = feteClient.GetFete(ctx, nowFunc())
+		if err != nil {
+			log.Println("error getting fetes:", err)
+		}
+	}()
+	go func() {
+		defer wg.Done()
+
+		ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
+		defer cancel()
+
+		var err error
+
+		wthr, err = weatherClient.GetWeather(ctx)
+		if err != nil {
+			log.Println("error getting weather:", err)
+		}
+	}()
+
 	quote := quotes.GetQuote(nowFunc())
 
 	img := newWhite()
@@ -65,6 +123,8 @@ func getBlack(
 	gc.SetFillColor(color.RGBA{255, 255, 255, 255})
 	gc.SetStrokeColor(color.RGBA{0, 0, 0, 255})
 
+	wg.Wait()
+
 	drawTCL(gc, bus, 55)
 	drawTCL(gc, tram, 190)
 	drawVelov(gc, velovRoc, 350)

main.go

@@ -11,6 +11,7 @@ import (
 	"golang.org/x/image/font/gofont/goregular"
 	"log"
 	"os"
+	"time"
 )
 
 const fontName = "default"
@@ -40,7 +41,16 @@ func main() {
 		CacheLocation: os.Getenv("WEATHER_CACHE_LOCATION"),
 	})
 
-	if err := run(ctx, transportsClient, feteClient, weatherClient); err != nil {
+	const minSleep = 30 * time.Second
+
+	sleep, err := time.ParseDuration(os.Getenv("SLEEP_DURATION"))
+	if err != nil || sleep < minSleep {
+		sleep = minSleep
+	}
+
+	log.Printf("sleep duration: %v\n", sleep)
+
+	if err := run(ctx, sleep, transportsClient, feteClient, weatherClient); err != nil {
 		log.Fatal("error: ", err)
 	}
 

run_darwin_arm64.go

@@ -12,6 +12,7 @@ import (
 
 func run(
 	ctx context.Context,
+	_ time.Duration,
 	transportsClient *transports.Client,
 	feteClient *fete.Client,
 	weatherClient *weather.Client,

run_linux_arm64.go

@@ -8,11 +8,18 @@ import (
 	"github.com/Crocmagnon/display-epaper/transports"
 	"github.com/Crocmagnon/display-epaper/weather"
 	"log"
+	"os"
 	"periph.io/x/host/v3"
 	"time"
 )
 
-func run(ctx context.Context, transportsClient *transports.Client, feteClient *fete.Client, weatherClient *weather.Client) error {
+func run(
+	ctx context.Context,
+	sleep time.Duration,
+	transportsClient *transports.Client,
+	feteClient *fete.Client,
+	weatherClient *weather.Client,
+) error {
 	_, err := host.Init()
 	if err != nil {
 		return fmt.Errorf("initializing host: %w", err)
@@ -31,6 +38,8 @@ func run(ctx context.Context, transportsClient *transports.Client, feteClient *f
 		default:
 		}
 
+		log.Println("running loop")
+
 		err = loop(
 			ctx,
 			display,
@@ -42,8 +51,8 @@ func run(ctx context.Context, transportsClient *transports.Client, feteClient *f
 			log.Printf("error looping: %v\n", err)
 		}
 
-		log.Println("time.Sleep(10m)")
-		time.Sleep(10 * time.Minute)
+		log.Printf("time.Sleep(%v)\n", sleep)
+		time.Sleep(sleep)
 	}
 }
 
@@ -54,19 +63,6 @@ func loop(
 	feteClient *fete.Client,
 	weatherClient *weather.Client,
 ) error {
-	defer func() {
-		if err := display.Sleep(); err != nil {
-			log.Printf("error sleeping: %v\n", err)
-		}
-	}()
-
-	err := display.Init()
-	if err != nil {
-		return fmt.Errorf("initializing display: %w", err)
-	}
-
-	display.Clear()
-
 	black, err := getBlack(
 		ctx,
 		time.Now,
@@ -78,8 +74,60 @@ func loop(
 		return fmt.Errorf("getting black: %w", err)
 	}
 
-	display.Send(black, nil)
+	defer func() {
+		if err := display.Sleep(); err != nil {
+			log.Printf("error sleeping: %v\n", err)
+		}
+	}()
+
+	err = initDisplay(display)
+	if err != nil {
+		return fmt.Errorf("initializing display: %w", err)
+	}
+
+	display.Clear()
+
+	display.Send(black)
 	display.Refresh()
 
 	return nil
 }
+
+const filename = "/perm/display-epaper-lastFullRefresh"
+
+func initDisplay(display *epd.EPD) error {
+	if canInitFast() {
+		err := display.InitFast()
+		if err != nil {
+			return fmt.Errorf("running fast init: %w", err)
+		}
+		return nil
+	}
+
+	err := display.Init()
+	if err != nil {
+		return fmt.Errorf("running full init: %w", err)
+	}
+
+	markInitFull()
+
+	return nil
+}
+
+func canInitFast() bool {
+	stat, err := os.Stat(filename)
+	if err != nil {
+		return false
+	}
+
+	return stat.ModTime().Add(12 * time.Hour).After(time.Now())
+}
+
+func markInitFull() {
+	f, err := os.Create(filename)
+	if err != nil {
+		log.Printf("error marking full refresh: %v\n", err)
+	}
+
+	f.Close()
+}