Add: status page screen change support

Add: image, signal and service status output
Add: status page
2024-10-06 21:31:23 +03:00 · 2024-10-06 20:20:22 +03:00 · 2024-09-30 21:56:45 +03:00 · 2024-09-29 21:09:59 +03:00 · 2024-09-22 21:53:22 +03:00 · 2024-09-18 22:32:47 +03:00
25 changed files with 2462 additions and 417 deletions
--- a/.gitignore
+++ b/.gitignore
@ -2,3 +2,4 @@ out/
 go.sum
 .git/
 *.swp
+.vscode
--- a/4
+++ b/4
@ -9,7 +9,9 @@ build:
 	@go build -o out/out main.go

 export GO111MODULE=on
-export GOPRIVATE=gitea.unprism.ru/KRBL/*
+export GOPRIVATE=gitea.unprism.ru/KRBL/*\
+# In my case even setting up "url.git@gitea.unprism.ru:8022/.insteadof=https://gitea.unprism.ru/" did not help and git continued to use https instead of ssh
+# So just go to config(location is listed in error message) and change the URL yourself

 get:
 	go get .
--- a/api/api.go
+++ b/api/api.go
@ -0,0 +1,97 @@
+package api
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"time"
+
+	"gitea.unprism.ru/yotia/display-test/api/pages"
+	"gitea.unprism.ru/yotia/display-test/display"
+	"gitea.unprism.ru/yotia/display-test/drawer"
+)
+
+const (
+	loopTimeout = 10 * time.Millisecond
+)
+
+type displayApi struct {
+	d drawer.Drawer
+
+	curPage pages.Page
+
+	initPage   pages.InitPage
+	statusPage pages.StatusPage
+}
+
+// Work process:
+// Display has pages that you can switch between. Switch returns page controller.
+// Every page has values that you can change:
+//   Init page - title, progress bar
+//   Status page - gps, time, rssi, service, ...
+
+type Display interface {
+	// Put them to different functions because of different returns
+	SwitchToInitPage() pages.InitPageContent
+	SwitchToStatusPage() pages.StatusPageContent
+	io.Closer
+}
+
+func New() (Display, error) {
+	// Device
+	dev, err := display.New(log.New(log.Writer(), "display", log.LstdFlags), display.MT12232A)
+	if err != nil {
+		return nil, fmt.Errorf("create display: %w", err)
+	}
+	// Drawer
+	d := drawer.New(dev)
+
+	// Pages
+
+	// Init page
+	initPage, err := pages.NewInitPage(d)
+	if err != nil {
+		return nil, fmt.Errorf("new init page: %w", err)
+	}
+	// Status page
+	statusPage, err := pages.NewStatusPage(d)
+	if err != nil {
+		return nil, fmt.Errorf("new init page: %w", err)
+	}
+
+	return &displayApi{
+		d:          d,
+		initPage:   initPage,
+		statusPage: statusPage,
+	}, nil
+}
+
+func (d *displayApi) switchToPage(p pages.Page) {
+	if d.curPage != nil {
+		d.curPage.Diactivate()
+	}
+	if p != nil {
+		p.Activate()
+	}
+	d.curPage = p
+}
+
+func (d *displayApi) SwitchToInitPage() pages.InitPageContent {
+	d.switchToPage(d.initPage)
+	return d.initPage
+}
+
+func (d *displayApi) SwitchToStatusPage() pages.StatusPageContent {
+	d.switchToPage(d.statusPage)
+	return d.statusPage
+}
+
+func (d *displayApi) Close() error {
+	// !!! TMP DEBUG BAD CODE
+	d.d.Clear()
+	time.Sleep(100 * time.Millisecond)
+	// !!!
+
+	d.switchToPage(nil) // To deactivate cur page
+	return d.d.GetDisplay().Close()
+}
--- a/api/pages/initpage.go
+++ b/api/pages/initpage.go
@ -0,0 +1,77 @@
+package pages
+
+import (
+	"fmt"
+
+	"gitea.unprism.ru/yotia/display-test/components"
+	"gitea.unprism.ru/yotia/display-test/drawer"
+)
+
+type initPage struct {
+	drawer drawer.Drawer // Drawer with dysplay
+
+	title components.Text
+	bar   components.ProgressBar
+}
+
+// Only functions that control content of page
+type InitPageContent interface {
+	SetTitle(title string)
+	GetProgressBar() components.ProgressBar
+}
+
+type InitPage interface {
+	Page
+	InitPageContent
+}
+
+func NewInitPage(d drawer.Drawer) (InitPage, error) {
+	if err := d.GetDisplay().IsReady(); err != nil {
+		return nil, fmt.Errorf("display is ready: %w", err)
+	}
+
+	title, err := components.NewText(d, 0, 0)
+	if err != nil {
+		return nil, fmt.Errorf("create title: %w", err)
+	}
+	pb, err := components.NewProgressBar(d, 0, drawer.LineH*3, d.W(), drawer.LineH) // Bottom
+	if err != nil {
+		return nil, fmt.Errorf("create progress bar: %w", err)
+	}
+	return &initPage{
+		drawer: d,
+		title:  title,
+		bar:    pb,
+	}, nil
+}
+
+func (p *initPage) Activate() {
+	// Draw
+	p.drawer.Clear()
+	p.title.Draw()
+	p.bar.Draw()
+}
+
+func (p *initPage) Diactivate() {
+	// Do not clear because next page will have to clear whole screen any way
+}
+
+func (p *initPage) SetTitle(title string) {
+	p.title.SetPos((p.drawer.W()-len(title)*(drawer.FontCharW+drawer.CharGap))/2, drawer.FontCharH) // Text in center
+	p.title.SetStr(title)
+}
+
+func (p *initPage) GetProgressBar() components.ProgressBar {
+	return p.bar
+}
+
+func (p *initPage) Close() (outErr error) {
+	// TODO Not the best way...
+	if err := p.title.Close(); err != nil {
+		outErr = fmt.Errorf("title close: %w:", err)
+	}
+	if err := p.bar.Close(); err != nil {
+		outErr = fmt.Errorf("progress bar close: %w:", err)
+	}
+	return
+}
--- a/api/pages/pages.go
+++ b/api/pages/pages.go
@ -0,0 +1,11 @@
+package pages
+
+import "io"
+
+type Page interface {
+	// Warning: now threre is no protection from double activation/diactivation
+	Activate()
+	Diactivate()
+
+	io.Closer
+}
--- a/api/pages/status.go
+++ b/api/pages/status.go
@ -0,0 +1,29 @@
+package pages
+
+import (
+	"sync"
+
+	"gitea.unprism.ru/KRBL/mpu/mpu"
+	"gitea.unprism.ru/KRBL/sim-modem/api/modem/gps"
+)
+
+// Some supplement types and constants
+
+// This struct contains status of the system that will be on the display
+type systemStatus struct {
+	mutex sync.Mutex
+
+	// Status data
+	gpsData gps.Data
+	mpuData mpu.Data
+
+	rssi    int    // Received signal strength indicator (check gitea.unprism.ru/KRBL/sim-modem/api/modem/utils/signal.go)
+	service string // Internet service name, could be: "NO SERVICE", "GSM", "WCDMA", "LTE", "TDS"
+}
+
+type SystemStatusSetter interface {
+	SetGps(newData gps.Data)
+	SetMpu(newData mpu.Data)
+	SetRssi(newData int)
+	SetService(newData string)
+}
--- a/api/pages/statuspage.go
+++ b/api/pages/statuspage.go
@ -0,0 +1,370 @@
+package pages
+
+import (
+	"context"
+	"fmt"
+	"math"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"gitea.unprism.ru/KRBL/mpu/mpu"
+	"gitea.unprism.ru/KRBL/sim-modem/api/modem/gps"
+	"gitea.unprism.ru/yotia/display-test/components"
+	"gitea.unprism.ru/yotia/display-test/drawer"
+)
+
+/*
+Status page has status line at the top and three lines with primary data below.
+Status line shows time and signal and service icon at the right corner.
+
+Main space can show several screens:
+1) GPS
+	GPS coordinates
+2) System state
+	temepature
+	speed
+	may be amount of cameras
+
+Other pages can show for ex important logs.
+*/
+
+const (
+	timeLayout = "01.09.06 15:04:05"
+
+	screenN             = 2
+	screenChangeTimeout = 6 * time.Second
+)
+
+type statusPage struct {
+	drawer drawer.Drawer // Drawer with dysplay
+
+	// Status data
+	st systemStatus
+
+	timeShift time.Duration
+
+	// Visual components
+	line0 components.Text
+	line1 components.Text
+	line2 components.Text
+	line3 components.Text
+	// Layout values
+	signalX  int
+	serviceX int
+	// Current screen(index) (default - 0)
+	curScreen atomic.Int32
+
+	// Threads sync
+	ctx    context.Context
+	cancel context.CancelFunc
+	wg     sync.WaitGroup
+}
+
+// Only functions that control content of page
+type StatusPageContent interface {
+	SystemStatusSetter
+	SetTimeShift(shift time.Duration)
+}
+
+type StatusPage interface {
+	Page
+	StatusPageContent
+}
+
+func NewStatusPage(d drawer.Drawer) (StatusPage, error) {
+	// Check display
+	if err := d.GetDisplay().IsReady(); err != nil {
+		return nil, fmt.Errorf("display is ready: %w", err)
+	}
+
+	// Create visual components
+	line0, err := components.NewText(d, 0, drawer.LineH*0)
+	if err != nil {
+		return nil, fmt.Errorf("create line0: %w", err)
+	}
+	line1, err := components.NewText(d, 0, drawer.LineH*1)
+	if err != nil {
+		return nil, fmt.Errorf("create line1: %w", err)
+	}
+	line2, err := components.NewText(d, 0, drawer.LineH*2)
+	if err != nil {
+		return nil, fmt.Errorf("create line2: %w", err)
+	}
+	line3, err := components.NewText(d, 0, drawer.LineH*3)
+	if err != nil {
+		return nil, fmt.Errorf("create line3: %w", err)
+	}
+
+	// Calculate signal and service glyphs' pos
+	signalX := d.W() - drawer.CommonGlyphs[drawer.SignalStatusGlyphI].W - drawer.CommonGlyphs[drawer.ServiceStatusGlyphI].W - drawer.CharGap
+	serviceX := d.W() - drawer.CommonGlyphs[drawer.ServiceStatusGlyphI].W
+
+	return &statusPage{
+		drawer: d,
+
+		line0: line0,
+		line1: line1,
+		line2: line2,
+		line3: line3,
+
+		signalX:  signalX,
+		serviceX: serviceX,
+	}, nil
+}
+
+func (p *statusPage) Activate() {
+	// Draw
+	p.drawer.Clear()
+
+	p.SetRssi(0)
+	p.SetService("NO SERVICE")
+
+	// Setup threads
+	p.ctx, p.cancel = context.WithCancel(context.Background())
+	go p.timeUpdateLoop()
+	go p.screenChangeLoop()
+}
+
+func (p *statusPage) Diactivate() {
+	// Stop all support threads
+	p.cancel()
+	p.wg.Wait()
+}
+
+func (p *statusPage) SetTimeShift(shift time.Duration) {
+	p.st.mutex.Lock()
+	defer p.st.mutex.Unlock()
+
+	p.timeShift = shift
+}
+
+func (p *statusPage) SetGps(newData gps.Data) {
+	p.st.mutex.Lock()
+	p.st.gpsData = newData
+	p.st.mutex.Unlock()
+
+	if p.curScreen.Load() == 0 { // Draw only on first screen
+		p.drawCoords(&newData)
+	}
+}
+
+func (p *statusPage) SetMpu(newData mpu.Data) {
+	p.st.mutex.Lock()
+	p.st.mpuData = newData
+	p.st.mutex.Unlock()
+
+	if p.curScreen.Load() == 1 { // Draw only on second screen
+		p.drawMpu(&newData)
+	}
+}
+
+func (p *statusPage) SetRssi(rssi int) {
+	// Save data
+	p.st.mutex.Lock()
+	p.st.rssi = rssi
+	p.st.mutex.Unlock()
+
+	// Draw
+	p.drawRssi(rssi)
+}
+
+func (p *statusPage) SetService(svc string) {
+	// Save data
+	p.st.mutex.Lock()
+	p.st.service = svc
+	p.st.mutex.Unlock()
+
+	// Draw
+	p.drawService(svc)
+}
+
+func (p *statusPage) Close() (outErr error) {
+
+	// TODO Not the best way...
+	if err := p.line0.Close(); err != nil {
+		outErr = fmt.Errorf("line 0 close: %w:", err)
+	}
+	if err := p.line1.Close(); err != nil {
+		outErr = fmt.Errorf("line 1 close: %w:", err)
+	}
+	if err := p.line2.Close(); err != nil {
+		outErr = fmt.Errorf("line 2 close: %w:", err)
+	}
+	if err := p.line3.Close(); err != nil {
+		outErr = fmt.Errorf("line 3 close: %w:", err)
+	}
+	return
+}
+
+func getSignalStrength(rssi int) int {
+	// Signal strength clasification (from google):
+	// 0 - no signal        -110 to ...
+	// 1 - poor signal       -90 to -110
+	// 2 - fair signal       -70 to -90
+	// 3 - good signal       -50 to -70
+	// 4 - excelent signal   ... to -50
+
+	// Description from "sim-modem/api/modem/utils/signal.go"
+	// 0          -113 dBm or less
+	// 1          -111 dBm
+	// 2...30     -109... -53 dBm
+	// 31         -51 dBm or greater
+	// 99         not known or not detectable
+	// 100        -116 dBm or less
+	// 101        -115 dBm
+	// 102…191    -114... -26dBm
+	// 191        -25 dBm or greater
+	// 199        not known or not detectable
+	// 100…199    expand to TDSCDMA, indicate RSCPreceived
+
+	// Cut certain cases
+	switch rssi {
+	case 99, 199: // not known or not detectable
+		return 0
+	case 0, 1, 100, 101: // no signal
+		return 0
+	case 31, 191: // Excelent
+		return 4
+	}
+
+	// Ranged values
+	if rssi >= 2 && rssi <= 30 {
+		// it is in -109...-53 dBm
+		// Simplified interpolation from 2..30 to -109...-53 and then to 0...4
+		return int((float64(rssi)*2-3)/20) + 1
+	}
+	if rssi >= 102 && rssi <= 191 {
+		// it is in -114...-26 dBm
+		// Simplified interpolation from 2..30 to -114...-26 and then to 0...4
+		return min(int((float64(rssi-102)+15)/20), 4)
+	}
+
+	return 0 // Invalid value
+}
+
+func getServiceStrength(service string) int {
+	// Service clasification by speed:
+	// 0 - no service - "NO SERVICE"
+	// 1 - 1G - do not use
+	// 2 - 2G - "GSM"
+	// 3 - 3G - "WCDMA"
+	// 4 - 4G - "LTE", "TDS"
+
+	switch service {
+	case "NO SERVICE":
+		return 0
+	case "GSM":
+		return 2
+	case "WCDMA":
+		return 3
+	case "LTE", "TDS":
+		return 4
+	}
+
+	return 0 // Invalid value
+}
+
+// Update time in top line
+func (p *statusPage) timeUpdateLoop() {
+	p.wg.Add(1)
+
+	// Because ticker do not send signal immediately
+	p.line0.SetStr(time.Now().Add(p.timeShift).Format(timeLayout))
+
+	ticker := time.NewTicker(time.Second)
+	for {
+		select {
+		case <-p.ctx.Done():
+			ticker.Stop()
+			p.wg.Done()
+			return
+		case now := <-ticker.C:
+			p.line0.SetStr(now.Add(p.timeShift).Format(timeLayout))
+		}
+	}
+}
+
+func (p *statusPage) screenChangeLoop() {
+	p.wg.Add(1)
+
+	// Because ticker do not send signal immediately
+	ticker := time.NewTicker(screenChangeTimeout)
+	for {
+		select {
+		case <-p.ctx.Done():
+			ticker.Stop()
+			p.wg.Done()
+			return
+		case <-ticker.C:
+			p.changeScreen()
+		}
+	}
+}
+
+func (p *statusPage) changeScreen() {
+	scr := p.curScreen.Load()
+	scr = (scr + 1) % screenN
+	p.curScreen.Store(scr)
+	p.drawScreen(int(scr))
+}
+
+///////////////////// Draw functions /////////////////////
+
+// Draw functions get draw data as arguments because otherwise they have to get it using mutex
+// Moreover they will lock it second time
+
+func (p *statusPage) drawRssi(rssi int) {
+	ss := getSignalStrength(rssi) // Signal strength in [0; 4] range
+	p.drawer.CopyImg(p.signalX, 0, drawer.CommonGlyphs[drawer.SignalStatusGlyphI+ss])
+	p.drawer.GetDisplay().FlushByMask(p.drawer.GetDisplay().GetFlushMaskBit(1, 0))
+}
+
+func (p *statusPage) drawService(svc string) {
+	ss := getServiceStrength(svc) // Service strength in [0; 4] range
+	p.drawer.CopyImg(p.serviceX, 0, drawer.CommonGlyphs[drawer.ServiceStatusGlyphI+ss])
+	p.drawer.GetDisplay().FlushByMask(p.drawer.GetDisplay().GetFlushMaskBit(1, 0))
+}
+
+func (p *statusPage) drawCoords(data *gps.Data) {
+	// Langitude, longitude store format: ddmm.mmmmmm, dddmm.mmmmmm
+	// Latitude and longitude layout:
+	//  DD° MM.MMM' N
+	// DDD° MM.MMM' W
+	latStr := fmt.Sprintf("   %02d°%06.3f' %s", int(p.st.gpsData.Latitude)/100, math.Mod(p.st.gpsData.Latitude, 100), p.st.gpsData.LatitudeIndicator)
+	p.line2.SetStr(latStr)
+	logStr := fmt.Sprintf("  %03d°%06.3f' %s", int(p.st.gpsData.Longitude)/100, math.Mod(p.st.gpsData.Longitude, 100), p.st.gpsData.LongitudeIndicator)
+	p.line3.SetStr(logStr)
+}
+
+func (p *statusPage) drawMpu(data *mpu.Data) {
+	// Layout:
+	// temp    ttt.ttC
+
+	tempStr := fmt.Sprintf("temperature %06.3fC", data.TempData)
+	p.line2.SetStr(tempStr)
+}
+
+// Draw main part depends on what current screen is active
+func (p *statusPage) drawScreen(screen int) {
+	// Clear
+	//p.drawer.FillBar(0, drawer.LineH, p.drawer.W(), p.drawer.H()-drawer.LineH, 0)
+	//p.drawer.GetDisplay().FlushByMask(0b01110111)
+	p.line1.SetStr("")
+	p.line2.SetStr("")
+	p.line3.SetStr("")
+	switch screen {
+	case 0:
+		p.st.mutex.Lock()
+		gpsData := &p.st.gpsData
+		p.st.mutex.Unlock()
+		p.drawCoords(gpsData)
+	case 1:
+		p.st.mutex.Lock()
+		mpuData := &p.st.mpuData
+		p.st.mutex.Unlock()
+		p.drawMpu(mpuData)
+		p.line1.SetStr("47 cameras connected")
+		p.line3.SetStr("some other info...")
+	}
+}
--- a/api/progress/handler.go
+++ b/api/progress/handler.go
@ -0,0 +1,62 @@
+package progress
+
+import (
+	"io"
+
+	"gitea.unprism.ru/yotia/display-test/components"
+)
+
+type handler struct {
+	bar         components.ProgressBar
+	checkpointN int // Number of check points
+	curP        int
+}
+
+// Handles progress bar update
+// You set the amount of
+type Handler interface {
+	Checkpoint() // Increments current progress
+	// SetProgress(n int) // Do not want to make it public because there is no places it is needed yet
+	Finish() // Set progress to end
+	GetBar() components.ProgressBar
+	Reset()
+
+	io.Closer
+}
+
+func NewHandler(bar components.ProgressBar, checkpointN int) Handler {
+	return &handler{
+		bar:         bar,
+		checkpointN: checkpointN,
+	}
+}
+
+func (h *handler) GetBar() components.ProgressBar {
+	return h.bar
+}
+
+func (h *handler) Checkpoint() {
+	h.curP = min(h.curP+1, h.checkpointN)
+	h.bar.SetProgress(float64(h.curP) / float64(h.checkpointN))
+}
+
+func (h *handler) SetProgress(n int) {
+	h.curP = min(max(n, 0), h.checkpointN)
+	h.bar.SetProgress(float64(h.curP) / float64(h.checkpointN))
+}
+
+func (h *handler) Finish() {
+	h.curP = h.checkpointN
+	h.bar.SetProgress(1)
+}
+
+func (h *handler) Reset() {
+	h.curP = 0
+	h.bar.SetProgress(0)
+}
+
+func (h *handler) Close() error {
+	h.curP = 0
+	h.checkpointN = 0
+	return h.bar.Close()
+}
--- a/components/components.go
+++ b/components/components.go
@ -0,0 +1,57 @@
+package components
+
+import "io"
+
+// Some general types
+
+// Rectangle and its' suplements
+type rect struct {
+	x int
+	y int
+	w int
+	h int
+}
+
+type RectGetter interface {
+	GetPos() (int, int)
+	GetSize() (int, int)
+}
+
+type RectSetter interface {
+	SetPos(x, y int)
+	SetSize(w, h int)
+}
+
+// Mask
+
+// Implementation dependent !!!
+// Now for mt12232
+type mask struct {
+	bits uint32
+}
+
+func (m *mask) Update(r rect) {
+	m.bits = 0
+	y0 := min(3, max(0, int(r.y/8)))
+	y1 := min(3, max(0, int((r.y+r.h-1)/8)))
+
+	x0 := min(1, max(0, int(r.x/61)))
+	x1 := min(1, max(0, int((r.x+r.w-1)/61)))
+
+	//log.Println(x0, y0, x1, y1)
+	for y := y0; y <= y1; y++ {
+		for x := x0; x <= x1; x++ {
+			m.bits |= (1 << (x*4 + y))
+		}
+	}
+}
+
+// Component - all components should implement this interface
+
+type Component interface {
+	RectGetter
+
+	Draw() // Draw and flush
+
+	io.Closer
+}
--- a/components/progressbar.go
+++ b/components/progressbar.go
@ -0,0 +1,93 @@
+package components
+
+import (
+	"fmt"
+
+	"gitea.unprism.ru/yotia/display-test/drawer"
+)
+
+type progressBar struct {
+	drawer   drawer.Drawer // Drawer with dysplay
+	mask     mask          // Flush mask
+	progress float64
+
+	rect rect // Rect
+}
+
+type ProgressBar interface {
+	Component
+
+	SetProgress(coef float64) // Value from 0 to 1
+	Clear()                   // Clear space of bar
+}
+
+// Creation function
+// Now the only way to chage shape is to recreate component
+func NewProgressBar(drawer drawer.Drawer, x, y, w, h int) (ProgressBar, error) {
+	if err := drawer.GetDisplay().IsReady(); err != nil {
+		return nil, fmt.Errorf("display is ready: %w", err)
+	}
+
+	// Check for correct sizes
+	if w < 4 {
+		return nil, fmt.Errorf("invalid width: below 4")
+	}
+	if h < 4 {
+		return nil, fmt.Errorf("invalid height: below 4")
+	}
+	pb := progressBar{
+		drawer: drawer,
+		rect:   rect{x, y, w, h},
+	}
+
+	pb.mask.Update(pb.rect)
+	// pb.Draw()
+
+	return &pb, nil
+}
+
+func (pb *progressBar) flush() {
+	pb.drawer.GetDisplay().FlushByMask(pb.mask.bits)
+}
+
+func (pb *progressBar) Close() error {
+	return nil
+}
+
+func (pb *progressBar) Clear() {
+	pb.drawer.FillBar(pb.rect.x, pb.rect.y, pb.rect.x+pb.rect.w, pb.rect.y+pb.rect.h, 0x00)
+}
+
+// Draw whole bar
+func (pb *progressBar) Draw() {
+	// Shape:
+	// Bounds - 1px
+	// Padding - 1px
+	// Progress - the rest space
+	pb.Clear()
+	pb.drawer.PutBar(pb.rect.x, pb.rect.y, pb.rect.x+pb.rect.w, pb.rect.y+pb.rect.h, 0xFF)
+	pb.drawBar()
+	pb.flush()
+}
+
+// Draw only bar(without frames)
+func (pb *progressBar) drawBar() {
+	w := int(float64(pb.rect.w-4) * pb.progress)
+
+	pb.drawer.FillBar(pb.rect.x+2, pb.rect.y+2, pb.rect.x+2+w, pb.rect.y+pb.rect.h-2, 0xFF)
+}
+
+func (pb *progressBar) SetProgress(coef float64) {
+	pb.progress = max(0, min(1, coef))
+
+	pb.drawBar()
+	pb.flush()
+}
+
+func (pb *progressBar) GetPos() (int, int) {
+	return pb.rect.x, pb.rect.y
+}
+
+func (pb *progressBar) GetSize() (int, int) {
+	return pb.rect.w, pb.rect.h
+}
--- a/components/text.go
+++ b/components/text.go
@ -0,0 +1,93 @@
+package components
+
+import (
+	"fmt"
+
+	"gitea.unprism.ru/yotia/display-test/drawer"
+)
+
+type text struct {
+	drawer drawer.Drawer // Drawer with dysplay
+	mask   mask          // Flush mask
+
+	str string
+
+	rect rect // Rect
+}
+
+type Text interface {
+	Component
+	RectSetter
+
+	SetStr(newStr string) // Update string and redraw
+	Clear()               // Clear space of bar
+}
+
+// Creation function
+// Now the only way to chage shape is to recreate component
+func NewText(d drawer.Drawer, x, y int) (Text, error) {
+	if err := d.GetDisplay().IsReady(); err != nil {
+		return nil, fmt.Errorf("display is ready: %w", err)
+	}
+
+	t := text{
+		drawer: d,
+		rect:   rect{x, y, 0, drawer.FontCharH},
+	}
+
+	t.mask.Update(t.rect)
+	//t.Draw()
+
+	return &t, nil
+}
+
+func (t *text) Close() error {
+	return nil
+}
+
+func (t *text) Clear() {
+	t.drawer.FillBar(t.rect.x, t.rect.y, t.rect.x+t.rect.w, t.rect.y+t.rect.h, 0x00)
+}
+
+func (t *text) Draw() {
+	t.drawer.PutText(t.rect.x, t.rect.y, t.str)
+	t.drawer.GetDisplay().FlushByMask(t.mask.bits)
+}
+
+func (t *text) updateW() {
+	t.rect.w = len(t.str)*(drawer.FontCharW+drawer.CharGap) - drawer.CharGap
+}
+
+func (t *text) SetStr(str string) {
+	t.str = str
+	newW := len(t.str)*(drawer.FontCharW+drawer.CharGap) - drawer.CharGap
+	if t.rect.w-newW > 0 {
+		// Need to clear some space
+		t.Clear()
+		t.drawer.FillBar(t.rect.x+newW, t.rect.y, t.rect.x+t.rect.w, t.rect.y+t.rect.h, 0)
+	} else {
+		t.rect.w = newW
+		t.mask.Update(t.rect)
+	}
+	t.Draw()
+	t.rect.w = newW
+	t.mask.Update(t.rect)
+}
+
+func (t *text) GetPos() (int, int) {
+	return t.rect.x, t.rect.y
+}
+
+func (t *text) GetSize() (int, int) {
+	return t.rect.w, t.rect.h
+}
+
+func (t *text) SetPos(x, y int) {
+	t.rect.x = x
+	t.rect.y = y
+	t.mask.Update(t.rect)
+}
+
+func (t *text) SetSize(w, h int) {
+	// Empty
+}
--- a/display/display.go
+++ b/display/display.go
@ -1,6 +1,7 @@
 package display

 import (
+	"context"
 	"fmt"
 	"image"
 	"io"
@ -8,9 +9,20 @@ import (
 )

 type Display interface {
-	Flush(img *image.Gray) error
+	IsReady() error // Nil if it is ready, error with some info otherwise
+
+	Flush(crystal, page byte)
+	FlushByMask(mask uint32)
+	GetFlushMaskBit(crystal, page byte) uint32
+
+	// Image functions
+	GetImg() *image.Gray
+	LockImg()
+	UnlockImg()
 	GetBounds() image.Rectangle

+	Test(ctx context.Context) error // DEBUG ONLY
+
 	io.Closer
 }

@ -19,6 +31,7 @@ type DisplayModel int
 const (
 	SSD1306 DisplayModel = iota
 	MT12864A
+	MT12232A
 )

 func New(logger *log.Logger, model DisplayModel) (Display, error) {
@ -27,6 +40,8 @@ func New(logger *log.Logger, model DisplayModel) (Display, error) {
 		return newSsd1306(logger)
 	case MT12864A:
 		return newMt12864a(logger)
+	case MT12232A:
+		return newMt12232a(logger)
 	}
 	return nil, fmt.Errorf("invalid display model")
 }
--- a/display/mt-12232a.go
+++ b/display/mt-12232a.go
@ -0,0 +1,316 @@
+package display
+
+import (
+	"context"
+	"fmt"
+	"image"
+	"log"
+	"math/rand"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"gitea.unprism.ru/yotia/display-test/pkg/mt12232a"
+)
+
+var _ = rand.Int() // for import existance
+
+const (
+	mt12232aW    = 122
+	mt12232aH    = 32
+	flushChanCap = 24 // Flush channel capacity
+
+	flushUpdateTimeout = 5 * time.Millisecond
+)
+
+type displayMt12232a struct {
+	logger *log.Logger
+
+	// Some state flags
+	isTurnedOn bool
+
+	// Image
+	img      *image.Gray
+	imgMutex sync.Mutex
+
+	// GPIO pins
+	dev mt12232a.Device
+
+	// Flush goroutine
+	flushCancel     context.CancelFunc
+	pagesFlushFlags atomic.Uint32 // (!use only 8 bits) Every bit corresponds to page/crystal with this number
+	flushDone       chan struct{}
+}
+
+func newMt12232a(logger *log.Logger) (Display, error) {
+	dev, err := mt12232a.New(log.New(logger.Writer(), "display-mt12864 : ", log.LstdFlags))
+	if err != nil {
+		return nil, fmt.Errorf("mt12864 create: %w", err)
+	}
+	// Allocate bits
+	bits := make([][]byte, 32)
+	for i := 0; i < 32; i++ {
+		bits[i] = make([]byte, 122)
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	// Setup submit goroutine
+	d := displayMt12232a{
+		logger:      logger,
+		dev:         dev,
+		flushCancel: cancel,
+		img:         image.NewGray(image.Rect(0, 0, mt12232aW, mt12232aH)),
+		flushDone:   make(chan struct{}), // For waiting flush to finish before exiting
+	}
+	go d.flushLoop(ctx)
+
+	// Temp debug draw
+	//if st0, st1 := d.dev.ReadStatus(0), d.dev.ReadStatus(1); false { //st0&0x20 == 0 && st1&0x20 == 0 {
+	//	d.logger.Println("Display is already on")
+	//} else {
+	d.status("Setup start")
+	if err := d.dev.Reset(); err != nil {
+		return nil, fmt.Errorf("reset: %w", err)
+	}
+	d.status("After reset")
+	time.Sleep(200 * time.Millisecond)
+	if st0, st1 := d.dev.ReadStatus(0), d.dev.ReadStatus(1); st0 == 0 && st1 == 0 {
+		return nil, fmt.Errorf("No status response from dysplay")
+	}
+	if err := d.powerOn(); err != nil {
+		return nil, fmt.Errorf("power on: %w", err)
+	}
+	d.status("Setup end")
+	return &d, nil
+}
+
+func (d *displayMt12232a) status(label string) {
+	//d.logger.Printf("STATUS %s -- L: %08b R: %08b\n", label, d.dev.ReadStatus(0)&0xFF, d.dev.ReadStatus(1)&0xFF)
+}
+
+func (d *displayMt12232a) powerOn() error {
+	// Reset
+	if err := d.dev.WriteCode(0, 0xE2); err != nil {
+		return fmt.Errorf("reset: %w", err)
+	}
+	if err := d.dev.WriteCode(1, 0xE2); err != nil {
+		return fmt.Errorf("reset: %w", err)
+	}
+	// ReadModifyWrite off
+	if err := d.dev.WriteCode(0, 0xEE); err != nil {
+		return fmt.Errorf("RMW off: %w", err)
+	}
+	if err := d.dev.WriteCode(1, 0xEE); err != nil {
+		return fmt.Errorf("RMW off: %w", err)
+	}
+	// Turn on common mode
+	if err := d.dev.WriteCode(0, 0xA4); err != nil {
+		return fmt.Errorf("turn on common mode: %w", err)
+	}
+	if err := d.dev.WriteCode(1, 0xA4); err != nil {
+		return fmt.Errorf("turn on common mode: %w", err)
+	}
+	// Multiplex 1/32
+	if err := d.dev.WriteCode(0, 0xA9); err != nil {
+		return fmt.Errorf("multiplex 1/32: %w", err)
+	}
+	if err := d.dev.WriteCode(1, 0xA9); err != nil {
+		return fmt.Errorf("multiplex 1/32: %w", err)
+	}
+	// Top line to 0
+	if err := d.dev.WriteCode(0, 0xC0); err != nil {
+		return fmt.Errorf("top line to 0: %w", err)
+	}
+	if err := d.dev.WriteCode(1, 0xC0); err != nil {
+		return fmt.Errorf("top line to 0: %w", err)
+	}
+	// Invert scan RAM
+	if err := d.dev.WriteCode(0, 0xA1); err != nil {
+		return fmt.Errorf("inver scan RAM: %w", err)
+	}
+	if err := d.dev.WriteCode(1, 0xA0); err != nil {
+		return fmt.Errorf("inver scan RAM: %w", err)
+	}
+	// Display on
+	if err := d.dev.WriteCode(0, 0xAF); err != nil {
+		return fmt.Errorf("display on: %w", err)
+	}
+	if err := d.dev.WriteCode(1, 0xAF); err != nil {
+		return fmt.Errorf("display on: %w", err)
+	}
+
+	//time.Sleep(time.Second)
+
+	// Check that crystals are turned on
+
+	// The same but with error
+	if d.dev.ReadStatus(0)&0x20 != 0 {
+		return fmt.Errorf("Left cristal is off")
+	}
+	if d.dev.ReadStatus(1)&0x20 != 0 {
+		return fmt.Errorf("Right cristal is off")
+	}
+	d.isTurnedOn = true
+	return nil
+}
+
+func (d *displayMt12232a) IsReady() error {
+	if !d.isTurnedOn {
+		return fmt.Errorf("display is turned off")
+	}
+	return nil
+}
+
+func (d *displayMt12232a) Test(ctx context.Context) error {
+	start := time.Now()
+
+	for p := 0; p < 4; p++ {
+		d.dev.WriteCode(0, byte(p)|0xB8)
+		d.dev.WriteCode(0, 0x13)
+		for c := 0; c < 61; c++ {
+			d.dev.WriteData(0, byte(rand.Int()))
+		}
+		d.dev.WriteCode(1, byte(p)|0xB8)
+		d.dev.WriteCode(1, 0x00)
+		for c := 0; c < 61; c++ {
+			d.dev.WriteData(1, byte(rand.Int()))
+		}
+	}
+
+	end := time.Now()
+	d.logger.Println(end.Sub(start))
+	return nil
+
+}
+
+func (d *displayMt12232a) GetBounds() image.Rectangle {
+	return image.Rect(0, 0, 122, 32)
+}
+
+func (d *displayMt12232a) FlushFull(img *image.Gray) error {
+	st := time.Now()
+
+	for p := byte(0); p < 4; p++ {
+		d.dev.WriteCode(0, (3-p)|0xB8)
+		d.dev.WriteCode(0, 0x13)
+		for c := 0; c < 61; c++ {
+			d.dev.WriteDatas(0, []byte{
+				img.Pix[int(p<<3+7)*122+c],
+				img.Pix[int(p<<3+6)*122+c],
+				img.Pix[int(p<<3+5)*122+c],
+				img.Pix[int(p<<3+4)*122+c],
+				img.Pix[int(p<<3+3)*122+c],
+				img.Pix[int(p<<3+2)*122+c],
+				img.Pix[int(p<<3+1)*122+c],
+				img.Pix[int(p<<3+0)*122+c],
+			})
+		}
+		d.dev.WriteCode(1, (3-p)|0xB8)
+		d.dev.WriteCode(1, 0x00)
+		for c := 61; c < 122; c++ {
+			d.dev.WriteDatas(1, []byte{
+				img.Pix[int(p<<3+7)*122+c],
+				img.Pix[int(p<<3+6)*122+c],
+				img.Pix[int(p<<3+5)*122+c],
+				img.Pix[int(p<<3+4)*122+c],
+				img.Pix[int(p<<3+3)*122+c],
+				img.Pix[int(p<<3+2)*122+c],
+				img.Pix[int(p<<3+1)*122+c],
+				img.Pix[int(p<<3+0)*122+c],
+			})
+		}
+	}
+	d.logger.Println("Flush time:", time.Since(st))
+	return nil
+}
+
+func (d *displayMt12232a) Flush(crystal, page byte) {
+	// !!! TODO Need to update GO to 1.23 to use .Or !!!
+	bit := uint32(1 << (crystal*4 + page))
+	d.pagesFlushFlags.Store(d.pagesFlushFlags.Load() | bit)
+}
+
+func (d *displayMt12232a) FlushByMask(mask uint32) {
+	// !!! TODO Need to update GO to 1.23 to use .Or !!!
+	d.pagesFlushFlags.Store(d.pagesFlushFlags.Load() | mask)
+}
+
+func (d *displayMt12232a) GetFlushMaskBit(crystal, page byte) uint32 {
+	return uint32(1 << (crystal*4 + page))
+}
+
+func (d *displayMt12232a) Close() error {
+	if d.flushCancel != nil {
+		d.flushCancel()
+		d.flushCancel = nil
+		<-d.flushDone
+	}
+	d.isTurnedOn = false
+	return d.dev.Close()
+}
+
+func (d *displayMt12232a) flushLoop(ctx context.Context) {
+
+	for {
+		select {
+		case <-ctx.Done():
+			close(d.flushDone)
+			return
+		case <-time.After(flushUpdateTimeout):
+			forUpdate := d.pagesFlushFlags.Swap(0)
+			checkBit := uint32(1)
+			//st := time.Now()
+			d.LockImg()
+			for p := byte(0); p < 4; p++ {
+				if forUpdate&(checkBit) != 0 {
+					d.dev.WriteCode(0, (3-p)|0xB8)
+					d.dev.WriteCode(0, 0x13)
+					for c := 0; c < 61; c++ {
+						d.dev.WriteDatas(0, []byte{
+							d.img.Pix[int(p<<3+7)*122+c],
+							d.img.Pix[int(p<<3+6)*122+c],
+							d.img.Pix[int(p<<3+5)*122+c],
+							d.img.Pix[int(p<<3+4)*122+c],
+							d.img.Pix[int(p<<3+3)*122+c],
+							d.img.Pix[int(p<<3+2)*122+c],
+							d.img.Pix[int(p<<3+1)*122+c],
+							d.img.Pix[int(p<<3+0)*122+c],
+						})
+					}
+				}
+				checkBit = checkBit << 1
+			}
+			//d.logger.Printf("%08b - %s\n", forUpdate, time.Since(st))
+			for p := byte(0); p < 4; p++ {
+				if forUpdate&(checkBit) != 0 {
+					d.dev.WriteCode(1, (3-p)|0xB8)
+					d.dev.WriteCode(1, 0x00)
+					for c := 61; c < 122; c++ {
+						d.dev.WriteDatas(1, []byte{
+							d.img.Pix[int(p<<3+7)*122+c],
+							d.img.Pix[int(p<<3+6)*122+c],
+							d.img.Pix[int(p<<3+5)*122+c],
+							d.img.Pix[int(p<<3+4)*122+c],
+							d.img.Pix[int(p<<3+3)*122+c],
+							d.img.Pix[int(p<<3+2)*122+c],
+							d.img.Pix[int(p<<3+1)*122+c],
+							d.img.Pix[int(p<<3+0)*122+c],
+						})
+					}
+				}
+				checkBit = checkBit << 1
+			}
+			d.UnlockImg()
+		}
+	}
+}
+
+func (d *displayMt12232a) GetImg() *image.Gray {
+	return d.img
+}
+func (d *displayMt12232a) LockImg() {
+	d.imgMutex.Lock()
+}
+func (d *displayMt12232a) UnlockImg() {
+	d.imgMutex.Unlock()
+}
--- a/display/mt-12864a.go
+++ b/display/mt-12864a.go
@ -1,6 +1,7 @@
 package display

 import (
+	"context"
 	"fmt"
 	"image"
 	"log"
@ -32,9 +33,16 @@ func newMt12864a(logger *log.Logger) (Display, error) {
 	}

 	// Temp debug draw
+	d.logger.Println("Draw...")
 	d.test()
+	d.logger.Println("Draw finished")

-	return &d, nil
+	//return &d, nil
+	return nil, fmt.Errorf("IMPLEMENTATION COMMENTED")
+}
+
+func (d *displayMt12864a) Test(ctx context.Context) error {
+	return nil
 }

 func (d *displayMt12864a) test() {
@ -105,29 +113,52 @@ func (d *displayMt12864a) test() {
 		0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0xFF,
 	},
 	}
+	_ = Logo128

-	for p := byte(0); p < 8; p++ {
-		d.dev.WriteCodeL(p | 0xB8)
-		d.dev.WriteCodeL(0x40)
-		for c := 0; c < 64; c++ {
-			d.dev.WriteDataL(Logo128[p][c])
-		}
-		d.dev.WriteCodeR(p | 0xB8)
-		d.dev.WriteCodeR(0x40)
-		for c := 64; c < 128; c++ {
-			d.dev.WriteDataR(Logo128[p][c])
-		}
-	}
+	d.logger.Println("Write")
+	d.dev.WriteCodeL(0xB8)
+	d.dev.WriteCodeL(0x40)
+	d.dev.WriteDataL(47)
+	d.logger.Println("Read")
+	// d.dev.WriteCodeL(0xB8)
+	d.dev.WriteCodeL(0x40)
+	d.logger.Println(d.dev.ReadDataL())
+	d.logger.Println(d.dev.ReadDataL())
+
+	// for p := byte(0); p < 8; p++ {
+	// 	d.dev.WriteCodeL(p | 0xB8)
+	// 	d.dev.WriteCodeL(0x40)
+	// 	for c := 0; c < 64; c++ {
+	// 		d.dev.WriteDataL(Logo128[p][c])
+	// 	}
+	// 	d.dev.WriteCodeR(p | 0xB8)
+	// 	d.dev.WriteCodeR(0x40)
+	// 	for c := 64; c < 128; c++ {
+	// 		d.dev.WriteDataR(Logo128[p][c])
+	// 	}
+	// }
 }

 func (d *displayMt12864a) GetBounds() image.Rectangle {
 	return image.Rectangle{}
 }

-func (d *displayMt12864a) Flush(img *image.Gray) error {
-	return nil
+func (d *displayMt12864a) Flush(crystal, page byte) {
+}
+
+func (d *displayMt12864a) FlushByMask(mask uint32) {
 }

 func (d *displayMt12864a) Close() error {
 	return rpio.Close()
 }
+
+func (d *displayMt12864a) GetImg() *image.Gray {
+	return nil
+}
+func (d *displayMt12864a) LockImg() {
+
+}
+func (d *displayMt12864a) UnlockImg() {
+
+}
--- a/display/ssd1306.go
+++ b/display/ssd1306.go
@ -1,6 +1,7 @@
 package display

 import (
+	"context"
 	"fmt"
 	"image"
 	"log"
@ -41,19 +42,29 @@ func newSsd1306(logger *log.Logger) (Display, error) {
 		return nil, fmt.Errorf("create i2c: %w", err)
 	}

-	return &displaySsd1306{
+	_ = displaySsd1306{
 		logger: logger,
 		bus:    bus,
 		dev:    dev,
-	}, nil
+	}
+
+	return nil, fmt.Errorf("IMPLEMENTATION COMMENTED")
 }

 func (d *displaySsd1306) GetBounds() image.Rectangle {
 	return d.dev.Bounds()
 }

-func (d *displaySsd1306) Flush(img *image.Gray) error {
-	return d.dev.Draw(img.Bounds(), d.img, image.Point{})
+func (d *displaySsd1306) Test(ctx context.Context) error {
+	return nil
+}
+
+func (d *displaySsd1306) Flush(crystal, page byte) {
+	//return d.dev.Draw(img.Bounds(), d.img, image.Point{})
+}
+
+func (d *displaySsd1306) FlushByMask(mask uint32) {
+	//return d.dev.Draw(img.Bounds(), d.img, image.Point{})
 }

 func (d *displaySsd1306) Close() error {
@ -62,3 +73,13 @@ func (d *displaySsd1306) Close() error {
 	}
 	return nil
 }
+
+func (d *displaySsd1306) GetImg() *image.Gray {
+	return nil
+}
+func (d *displaySsd1306) LockImg() {
+
+}
+func (d *displaySsd1306) UnlockImg() {
+
+}
--- a/drawer/bar.go
+++ b/drawer/bar.go
@ -2,9 +2,9 @@ package drawer

 import "math"

-func (d *drawer) FillBar(sx, sy, ex, ey, color int) {
-	d.Lock()
-	defer d.Unlock()
+func (d *drawer) FillBar(sx, sy, ex, ey int, color byte) {
+	d.dev.LockImg()
+	defer d.dev.UnlockImg()

 	bounds := d.img.Bounds()
 	// Crop
@ -18,14 +18,14 @@ func (d *drawer) FillBar(sx, sy, ex, ey, color int) {
 		addr := lineaddr
 		le := addr + w
 		for ; addr < le; addr++ {
-			d.img.Pix[addr] = 255
+			d.img.Pix[addr] = color
 		}
 	}
 }

-func (d *drawer) PutBar(sx, sy, ex, ey, color int) {
-	d.Lock()
-	defer d.Unlock()
+func (d *drawer) PutBar(sx, sy, ex, ey int, color byte) {
+	d.dev.LockImg()
+	defer d.dev.UnlockImg()

 	bounds := d.img.Bounds()
 	// Crop
@ -36,7 +36,7 @@ func (d *drawer) PutBar(sx, sy, ex, ey, color int) {
 		x1 := int(math.Min(float64(ex), float64(bounds.Dx())))

 		for addr := sy*bounds.Dx() + x0; addr < sy*bounds.Dx()+x1; addr++ {
-			d.img.Pix[addr] = 255
+			d.img.Pix[addr] = color
 		}
 	}
 	// Bottom
@ -45,7 +45,7 @@ func (d *drawer) PutBar(sx, sy, ex, ey, color int) {
 		x1 := int(math.Min(float64(ex), float64(bounds.Dx())))

 		for addr := (ey-1)*bounds.Dx() + x0; addr < (ey-1)*bounds.Dx()+x1; addr++ {
-			d.img.Pix[addr] = 255
+			d.img.Pix[addr] = color
 		}
 	}
 	// Left
@ -54,7 +54,7 @@ func (d *drawer) PutBar(sx, sy, ex, ey, color int) {
 		y1 := int(math.Min(float64(ey), float64(bounds.Dy())))

 		for addr := y0*bounds.Dx() + sx; addr < y1*bounds.Dx()+sx; addr += bounds.Dx() {
-			d.img.Pix[addr] = 255
+			d.img.Pix[addr] = color
 		}
 	}
 	// Right
@ -63,7 +63,7 @@ func (d *drawer) PutBar(sx, sy, ex, ey, color int) {
 		y1 := int(math.Min(float64(ey), float64(bounds.Dy())))

 		for addr := y0*bounds.Dx() + (ex - 1); addr < y1*bounds.Dx()+(ex-1); addr += bounds.Dx() {
-			d.img.Pix[addr] = 255
+			d.img.Pix[addr] = color
 		}
 	}
 }
--- a/drawer/drawer.go
+++ b/drawer/drawer.go
@ -2,76 +2,72 @@ package drawer

 import (
 	"image"
-	"sync"

 	"gitea.unprism.ru/yotia/display-test/display"
-
-	"golang.org/x/image/font"
-	"golang.org/x/image/font/inconsolata"
 )

 type drawer struct {
-	font font.Face
+	dev display.Display

-	dev      display.Display
-	img      *image.Gray
-	imgMutex sync.Mutex
+	img *image.Gray
 }

 type Drawer interface {
-	GetFont() font.Face
+	GetDisplay() display.Display

-	// Lowlevel image
-	GetImg() *image.Gray
-	Lock()
-	Unlock()
+	W() int
+	H() int

 	Clear()
-	Flush() error
+	Flush()

 	PutText(x, y int, text string)

-	PutBar(x0, y0, x1, y1, color int)
-	FillBar(x0, y0, x1, y1, color int)
+	PutBar(x0, y0, x1, y1 int, color byte)
+	FillBar(x0, y0, x1, y1 int, color byte)
+
+	CopyImg(x0, y0 int, img Image)
 }

 func New(dev display.Display) Drawer {
-	return &drawer{
-		font: inconsolata.Regular8x16,
-
+	d := &drawer{
 		dev: dev,
-		img: image.NewGray(dev.GetBounds()),
 	}
+
+	d.img = d.dev.GetImg()
+	return d
 }

-func (d *drawer) GetImg() *image.Gray {
-	return d.img
+func (d *drawer) GetDisplay() display.Display {
+	return d.dev
 }

-func (d *drawer) GetFont() font.Face {
-	return d.font
+func (d *drawer) W() int {
+	return d.img.Rect.Dx()
 }

-func (d *drawer) Lock() {
-	d.imgMutex.Lock()
-}
-
-func (d *drawer) Unlock() {
-	d.imgMutex.Unlock()
+func (d *drawer) H() int {
+	return d.img.Rect.Dy()
 }

 func (d *drawer) Clear() {
-	d.Lock()
-	defer d.Unlock()
+	d.dev.LockImg()
+	defer d.dev.UnlockImg()

 	for i := range d.img.Pix {
 		d.img.Pix[i] = 0
 	}
+	d.dev.FlushByMask(0xFF)
 }

-func (d *drawer) Flush() error {
-	d.Lock()
-	defer d.Unlock()
-
-	return d.dev.Flush(d.img)
+func (d *drawer) Flush() {
+	// Flush all pages
+	d.dev.Flush(0, 0)
+	d.dev.Flush(0, 1)
+	d.dev.Flush(0, 2)
+	d.dev.Flush(0, 3)
+	d.dev.Flush(1, 0)
+	d.dev.Flush(1, 1)
+	d.dev.Flush(1, 2)
+	d.dev.Flush(1, 3)
 }
--- a/drawer/font.go
+++ b/drawer/font.go
@ -0,0 +1,354 @@
+package drawer
+
+import (
+	"log"
+
+	"golang.org/x/text/encoding/charmap"
+)
+
+const (
+	CharGap   = 1
+	LineGap   = 1
+	FontCharW = 5
+	FontCharH = 7
+	LineH     = FontCharH + LineGap
+)
+
+// Standard ASCII 5x7 font
+var stdFont = []byte{
+	0x0, 0x0, 0x0, 0x0, 0x0, // Empty Cell
+	0x3e, 0x5b, 0x4f, 0x5b, 0x3e, // Sad Smiley
+	0x3e, 0x6b, 0x4f, 0x6b, 0x3e, // Happy Smiley
+	0x1c, 0x3e, 0x7c, 0x3e, 0x1c, // Heart
+	0x18, 0x3c, 0x7e, 0x3c, 0x18, // Diamond
+	0x1c, 0x57, 0x7d, 0x57, 0x1c, // Clubs
+	0x1c, 0x5e, 0x7f, 0x5e, 0x1c, // Spades
+	0x18, 0x3c, 0x18, 0x0, 0x0, // Bullet Point
+	0xff, 0xe7, 0xc3, 0xe7, 0xff, // Rev Bullet Point
+	0x18, 0x24, 0x18, 0x0, 0x0, // Hollow Bullet Point
+	0xff, 0xe7, 0xdb, 0xe7, 0xff, // Rev Hollow BP
+	0x30, 0x48, 0x3a, 0x6, 0xe, // Male
+	0x26, 0x29, 0x79, 0x29, 0x26, // Female
+	0x40, 0x7f, 0x5, 0x5, 0x7, // Music Note 1
+	0x40, 0x7f, 0x5, 0x25, 0x3f, // Music Note 2
+	0x5a, 0x3c, 0xe7, 0x3c, 0x5a, // Snowflake
+	0x7f, 0x3e, 0x1c, 0x1c, 0x8, // Right Pointer
+	0x8, 0x1c, 0x1c, 0x3e, 0x7f, // Left Pointer
+	0x14, 0x22, 0x7f, 0x22, 0x14, // UpDown Arrows
+	0x5f, 0x5f, 0x0, 0x5f, 0x5f, // Double Exclamation
+	0x6, 0x9, 0x7f, 0x1, 0x7f, // Paragraph Mark
+	0x66, 0x89, 0x95, 0x6a, 0x0, // Section Mark
+	0x60, 0x60, 0x60, 0x60, 0x60, // Double Underline
+	0x94, 0xa2, 0xff, 0xa2, 0x94, // UpDown Underlined
+	0x8, 0x4, 0x7e, 0x4, 0x8, // Up Arrow
+	0x10, 0x20, 0x7e, 0x20, 0x10, // Down Arrow
+	0x8, 0x8, 0x2a, 0x1c, 0x8, // Right Arrow
+	0x8, 0x1c, 0x2a, 0x8, 0x8, // Left Arrow
+	0x1e, 0x10, 0x10, 0x10, 0x10, // Angled
+	0xc, 0x1e, 0xc, 0x1e, 0xc, // Squashed #
+	0x30, 0x38, 0x3e, 0x38, 0x30, // Up Pointer
+	0x6, 0xe, 0x3e, 0xe, 0x6, // Down Pointer
+	0x0, 0x0, 0x0, 0x0, 0x0, // Space
+	0x5f, 0x0, 0x0, 0x0, 0x0, // !
+	0x3, 0x0, 0x3, 0x0, 0x0, // "
+	0x14, 0x3e, 0x14, 0x3e, 0x14, // #
+	0x24, 0x6a, 0x2b, 0x12, 0x0, // $
+	0x63, 0x13, 0x8, 0x64, 0x63, // %
+	0x36, 0x49, 0x56, 0x20, 0x50, // &
+	0x3, 0x0, 0x0, 0x0, 0x0, // '
+	0x1c, 0x22, 0x41, 0x0, 0x0, // (
+	0x41, 0x22, 0x1c, 0x0, 0x0, // )
+	0x28, 0x18, 0xe, 0x18, 0x28, // *
+	0x8, 0x8, 0x3e, 0x8, 0x8, // +
+	0xb0, 0x70, 0x0, 0x0, 0x0, // ,
+	0x8, 0x8, 0x8, 0x8, 0x0, // -
+	0x60, 0x60, 0x0, 0x0, 0x0, // .
+	0x60, 0x18, 0x6, 0x1, 0x0, // /
+	0x3e, 0x41, 0x41, 0x3e, 0x0, // 0
+	0x42, 0x7f, 0x40, 0x0, 0x0, // 1
+	0x62, 0x51, 0x49, 0x46, 0x0, // 2
+	0x22, 0x41, 0x49, 0x36, 0x0, // 3
+	0x18, 0x14, 0x12, 0x7f, 0x0, // 4
+	0x27, 0x45, 0x45, 0x39, 0x0, // 5
+	0x3e, 0x49, 0x49, 0x30, 0x0, // 6
+	0x61, 0x11, 0x9, 0x7, 0x0, // 7
+	0x36, 0x49, 0x49, 0x36, 0x0, // 8
+	0x6, 0x49, 0x49, 0x3e, 0x0, // 9
+	0x00, 0x0, 0x22, 0x0, 0x0, // :
+	0x80, 0x50, 0x0, 0x0, 0x0, // ;
+	0x10, 0x28, 0x44, 0x0, 0x0, // <
+	0x14, 0x14, 0x14, 0x0, 0x0, // =
+	0x44, 0x28, 0x10, 0x0, 0x0, // >
+	0x2, 0x59, 0x9, 0x6, 0x0, // ?
+	0x3e, 0x49, 0x55, 0x5d, 0xe, // @
+	0x7e, 0x11, 0x11, 0x7e, 0x0, // A
+	0x7f, 0x49, 0x49, 0x36, 0x0, // B
+	0x3e, 0x41, 0x41, 0x22, 0x0, // C
+	0x7f, 0x41, 0x41, 0x3e, 0x0, // D
+	0x7f, 0x49, 0x49, 0x41, 0x0, // E
+	0x7f, 0x9, 0x9, 0x1, 0x0, // F
+	0x3e, 0x41, 0x49, 0x7a, 0x0, // G
+	0x7f, 0x8, 0x8, 0x7f, 0x0, // H
+	0x41, 0x7f, 0x41, 0x0, 0x0, // I
+	0x30, 0x40, 0x41, 0x3f, 0x0, // J
+	0x7f, 0x8, 0x14, 0x63, 0x0, // K
+	0x7f, 0x40, 0x40, 0x40, 0x0, // L
+	0x7f, 0x2, 0xc, 0x2, 0x7f, // M
+	0x7f, 0x4, 0x8, 0x10, 0x7f, // N
+	0x3e, 0x41, 0x41, 0x3e, 0x0, // O
+	0x7f, 0x9, 0x9, 0x6, 0x0, // P
+	0x3e, 0x41, 0x41, 0xbe, 0x0, // Q
+	0x7f, 0x9, 0x9, 0x76, 0x0, // R
+	0x46, 0x49, 0x49, 0x32, 0x0, // S
+	0x1, 0x1, 0x7f, 0x1, 0x1, // T
+	0x3f, 0x40, 0x40, 0x3f, 0x0, // U
+	0xf, 0x30, 0x40, 0x30, 0xf, // V
+	0x3f, 0x40, 0x38, 0x40, 0x3f, // W
+	0x63, 0x14, 0x8, 0x14, 0x63, // X
+	0x7, 0x8, 0x70, 0x8, 0x7, // Y
+	0x61, 0x51, 0x49, 0x47, 0x0, // Z
+	0x7f, 0x41, 0x0, 0x0, 0x0, // [
+	0x1, 0x6, 0x18, 0x60, 0x0, //
+	0x41, 0x7f, 0x0, 0x0, 0x0, // ]
+	0x2, 0x1, 0x2, 0x0, 0x0, // ^
+	0x40, 0x40, 0x40, 0x40, 0x0, // _
+	0x1, 0x2, 0x0, 0x0, 0x0, // `
+	0x20, 0x54, 0x54, 0x78, 0x0, // a
+	0x7f, 0x44, 0x44, 0x38, 0x0, // b
+	0x38, 0x44, 0x44, 0x28, 0x0, // c
+	0x38, 0x44, 0x44, 0x7f, 0x0, // d
+	0x38, 0x54, 0x54, 0x18, 0x0, // e
+	0x4, 0x7e, 0x5, 0x0, 0x0, // f
+	0x98, 0xa4, 0xa4, 0x78, 0x0, // g
+	0x7f, 0x4, 0x4, 0x78, 0x0, // h
+	0x44, 0x7d, 0x40, 0x0, 0x0, // i
+	0x40, 0x80, 0x84, 0x7d, 0x0, // j
+	0x7f, 0x10, 0x28, 0x44, 0x0, // k
+	0x41, 0x7f, 0x40, 0x0, 0x0, // l
+	0x7c, 0x4, 0x7c, 0x4, 0x78, // m
+	0x7c, 0x4, 0x4, 0x78, 0x0, // n
+	0x38, 0x44, 0x44, 0x38, 0x0, // o
+	0xfc, 0x24, 0x24, 0x18, 0x0, // p
+	0x18, 0x24, 0x24, 0xfc, 0x0, // q
+	0x7c, 0x8, 0x4, 0x4, 0x0, // r
+	0x48, 0x54, 0x54, 0x24, 0x0, // s
+	0x4, 0x3f, 0x44, 0x0, 0x0, // t
+	0x3c, 0x40, 0x40, 0x7c, 0x0, // u
+	0x1c, 0x20, 0x40, 0x20, 0x1c, // v
+	0x3c, 0x40, 0x3c, 0x40, 0x3c, // w
+	0x44, 0x28, 0x10, 0x28, 0x44, // x
+	0x9c, 0xa0, 0xa0, 0x7c, 0x0, // y
+	0x64, 0x54, 0x4c, 0x0, 0x0, // z
+	0x8, 0x36, 0x41, 0x0, 0x0, // {
+	0x7f, 0x0, 0x0, 0x0, 0x0, // |
+	0x41, 0x36, 0x8, 0x0, 0x0, // }
+	0x8, 0x4, 0x8, 0x4, 0x0, // ~
+	0x0, 0x0, 0x0, 0x0, 0x0, // Hollow Up Arrow
+	0x7f, 0x55, 0x49, 0x55, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x03, 0x03, 0x00, 0x00, 0x00, // °
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
+	0x7e, 0x11, 0x11, 0x7e, 0x0, // А
+	0x7f, 0x49, 0x49, 0x31, 0x0, // Б
+	0x7f, 0x49, 0x49, 0x36, 0x0, // В
+	0x7f, 0x1, 0x1, 0x1, 0x0, // Г
+	0xc0, 0x7e, 0x41, 0x7f, 0xc0, // Д
+	0x7f, 0x49, 0x49, 0x41, 0x0, // Е
+	0x77, 0x8, 0x7f, 0x8, 0x77, // Ж
+	0x22, 0x41, 0x49, 0x36, 0x0, // З
+	0x7f, 0x20, 0x10, 0x7f, 0x0, // И
+	0x7f, 0x20, 0x11, 0x7d, 0x0, // Й
+	0x7f, 0x8, 0x14, 0x63, 0x0, // К
+	0x40, 0x3c, 0x2, 0x7f, 0x0, // Л
+	0x7f, 0x2, 0xc, 0x2, 0x7f, // М
+	0x7f, 0x8, 0x8, 0x7f, 0x0, // Н
+	0x3e, 0x41, 0x41, 0x3e, 0x0, // О
+	0x7f, 0x1, 0x1, 0x7f, 0x0, // П
+	0x7f, 0x9, 0x9, 0x6, 0x0, // Р
+	0x3e, 0x41, 0x41, 0x22, 0x0, // С
+	0x1, 0x1, 0x7f, 0x1, 0x1, // Т
+	0x47, 0x48, 0x48, 0x3f, 0x0, // У
+	0xe, 0x11, 0x7f, 0x11, 0xe, // Ф
+	0x63, 0x14, 0x8, 0x14, 0x63, // Х
+	0x7f, 0x40, 0x40, 0x7f, 0xc0, // Ц
+	0xf, 0x8, 0x8, 0x7f, 0x0, // Ч
+	0x7f, 0x40, 0x7c, 0x40, 0x7f, // Ш
+	0x7f, 0x40, 0x7c, 0x40, 0xff, // Щ
+	0x1, 0x7f, 0x48, 0x48, 0x30, // Ъ
+	0x7f, 0x48, 0x30, 0x0, 0x7f, // Ы
+	0x7f, 0x48, 0x48, 0x30, 0x0, // Ь
+	0x41, 0x49, 0x49, 0x3e, 0x0, // Э
+	0x7f, 0x8, 0x3e, 0x41, 0x3e, // Ю
+	0x46, 0x29, 0x19, 0x7f, 0x0, // Я
+	0x20, 0x54, 0x54, 0x78, 0x0, // а
+	0x3c, 0x4a, 0x4a, 0x31, 0x0, // б
+	0x7e, 0x59, 0x56, 0x20, 0x0, // в
+	0x7c, 0x4, 0x4, 0x4, 0x0, // г
+	0xc0, 0x78, 0x44, 0x7c, 0xc0, // д
+	0x38, 0x54, 0x54, 0x18, 0x0, // е
+	0x6c, 0x10, 0x7c, 0x10, 0x6c, // ж
+	0x48, 0x84, 0x94, 0x68, 0x0, // з
+	0x7c, 0x20, 0x10, 0x7c, 0x0, // и
+	0x7c, 0x21, 0x11, 0x7c, 0x0, // й
+	0x7c, 0x10, 0x28, 0x44, 0x0, // к
+	0x40, 0x38, 0x4, 0x7c, 0x0, // л
+	0x7c, 0x8, 0x10, 0x8, 0x7c, // м
+	0x7c, 0x10, 0x10, 0x7c, 0x0, // н
+	0x38, 0x44, 0x44, 0x38, 0x0, // о
+	0x7c, 0x4, 0x4, 0x7c, 0x0, // п
+	0xfc, 0x24, 0x24, 0x18, 0x0, // р
+	0x38, 0x44, 0x44, 0x28, 0x0, // с
+	0x4, 0x7c, 0x4, 0x0, 0x0, // т
+	0x9c, 0xa0, 0xa0, 0x7c, 0x0, // у
+	0x18, 0x24, 0xfc, 0x24, 0x18, // ф
+	0x44, 0x28, 0x10, 0x28, 0x44, // х
+	0x7c, 0x40, 0x40, 0x7c, 0xc0, // ц
+	0x1c, 0x10, 0x10, 0x7c, 0x0, // ч
+	0x7c, 0x40, 0x70, 0x40, 0x7c, // ш
+	0x7c, 0x40, 0x70, 0x40, 0xfc, // щ
+	0x4, 0x7c, 0x48, 0x48, 0x30, // ъ
+	0x7c, 0x48, 0x30, 0x0, 0x7c, // ы
+	0x7c, 0x48, 0x48, 0x30, 0x0, // ь
+	0x44, 0x54, 0x54, 0x38, 0x0, // э
+	0x7c, 0x10, 0x38, 0x44, 0x38, // ю
+	0x48, 0x34, 0x14, 0x7c, 0x0, // я
+}
+
+func IntMin(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
+
+func IntMax(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}
+
+func (d *drawer) putChar(x0, y0 int, c byte) {
+	if int(c) > len(stdFont)/5 {
+		return
+	}
+
+	//if x0+7 < 0 || y0+5 < 0 || y0 >= d.img.Rect.Dy() || x0 >= d.img.Rect.Dx() {
+	//	return
+	//}
+
+	minX := IntMax(x0, 0) - x0
+	minY := IntMax(y0, 0) - y0
+
+	maxY := IntMin(y0+7, d.img.Rect.Dy()) - y0
+	maxX := IntMin(x0+5, d.img.Rect.Dx()) - x0
+
+	for yi := minY; yi < maxY; yi++ {
+		lineaddr := (y0+yi)*d.img.Stride + x0
+		for xi := minX; xi < maxX; xi++ {
+			d.img.Pix[lineaddr+xi] = ((stdFont[int(c)*5+xi] >> yi) & 1) * 255
+		}
+	}
+}
+
+func convertStr(str string) []byte {
+	out, err := charmap.Windows1251.NewEncoder().Bytes([]byte(str))
+	if err != nil {
+		log.Println("ENCODE ERROR: ", err.Error())
+	}
+	return out
+}
+
+func (d *drawer) PutText(x0, y0 int, text string) {
+	d.dev.LockImg()
+	defer d.dev.UnlockImg()
+
+	asciiStr := convertStr(text)
+	//asciiStr := []byte(text)
+
+	// Create font drawer
+	x := x0
+	for _, c := range asciiStr {
+		d.putChar(x, y0, c)
+		x += CharGap + FontCharW
+	}
+
+	// Calculate update mask
+	mask := uint32(0)
+
+	// Implementation dependent !!!
+	// Now for mt12232
+	my0 := min(3, max(0, int((y0)/8)))
+	my1 := min(3, max(0, int((y0+FontCharH-1)/8)))
+
+	mx0 := min(1, max(0, int(x0/61)))
+	mx1 := min(1, max(0, int((x0+FontCharW*len(text)-1)/61)))
+
+	//log.Println(x0, y0, x1, y1)
+	for y := my0; y <= my1; y++ {
+		for x := mx0; x <= mx1; x++ {
+			mask |= (1 << (x*4 + y))
+		}
+	}
+	d.dev.FlushByMask(mask)
+}
--- a/drawer/image.go
+++ b/drawer/image.go
@ -0,0 +1,167 @@
+package drawer
+
+// Simple glyphs like signal or service status that are too simple to be whole image
+
+const (
+	SignalStatusGlyphI  = 0 // first of 5
+	ServiceStatusGlyphI = 5 // first of 5
+)
+
+type Image struct {
+	W    int
+	H    int
+	Bits []byte
+}
+
+var CommonGlyphs = []Image{
+	{ // Signal 0/0
+		W: 7,
+		H: 7,
+		Bits: []byte{
+			1, 0, 0, 0, 1, 0, 0,
+			0, 1, 0, 1, 0, 0, 0,
+			0, 0, 1, 0, 0, 0, 0,
+			0, 1, 0, 1, 0, 0, 1,
+			1, 0, 0, 0, 1, 0, 1,
+			0, 0, 1, 0, 0, 0, 1,
+			1, 0, 1, 0, 1, 0, 1,
+		},
+	},
+	{ // Signal 1/4
+		W: 7,
+		H: 7,
+		Bits: []byte{
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0,
+			1, 0, 0, 0, 0, 0, 0,
+		},
+	},
+	{ // Signal 2/4
+		W: 7,
+		H: 7,
+		Bits: []byte{
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 1, 0, 0, 0, 0,
+			0, 0, 1, 0, 0, 0, 0,
+			1, 0, 1, 0, 0, 0, 0,
+		},
+	},
+	{ // Signal 3/4
+		W: 7,
+		H: 7,
+		Bits: []byte{
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 1, 0, 0,
+			0, 0, 0, 0, 1, 0, 0,
+			0, 0, 1, 0, 1, 0, 0,
+			0, 0, 1, 0, 1, 0, 0,
+			1, 0, 1, 0, 1, 0, 0,
+		},
+	},
+	{ // Signal 4/4
+		W: 7,
+		H: 7,
+		Bits: []byte{
+			0, 0, 0, 0, 0, 0, 1,
+			0, 0, 0, 0, 0, 0, 1,
+			0, 0, 0, 0, 1, 0, 1,
+			0, 0, 0, 0, 1, 0, 1,
+			0, 0, 1, 0, 1, 0, 1,
+			0, 0, 1, 0, 1, 0, 1,
+			1, 0, 1, 0, 1, 0, 1,
+		},
+	},
+	{ // Service 0/4
+		W: 9,
+		H: 7,
+		Bits: []byte{
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 1, 0, 0, 0, 1, 0, 0,
+			0, 0, 0, 1, 0, 1, 0, 0, 0,
+			0, 0, 0, 0, 1, 0, 0, 0, 0,
+			0, 0, 0, 1, 0, 1, 0, 0, 0,
+			0, 0, 1, 0, 0, 0, 1, 0, 0,
+			0, 0, 0, 0, 1, 0, 0, 0, 0,
+		},
+	},
+	{ // Service 1/4
+		W: 9,
+		H: 7,
+		Bits: []byte{
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 1, 0, 0, 0, 0,
+		},
+	},
+	{ // Service 2/4
+		W: 9,
+		H: 7,
+		Bits: []byte{
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 1, 1, 1, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 1, 0, 0, 0, 0,
+		},
+	},
+	{ // Service 3/4
+		W: 9,
+		H: 7,
+		Bits: []byte{
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 1, 1, 1, 1, 1, 0, 0,
+			0, 1, 0, 0, 0, 0, 0, 1, 0,
+			0, 0, 0, 1, 1, 1, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 1, 0, 0, 0, 0,
+		},
+	},
+	{ // Service 4/4
+		W: 9,
+		H: 7,
+		Bits: []byte{
+			0, 1, 1, 1, 1, 1, 1, 1, 0,
+			1, 0, 0, 0, 0, 0, 0, 0, 1,
+			0, 0, 1, 1, 1, 1, 1, 0, 0,
+			0, 1, 0, 0, 0, 0, 0, 1, 0,
+			0, 0, 0, 1, 1, 1, 0, 0, 0,
+			0, 0, 0, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 1, 0, 0, 0, 0,
+		},
+	},
+}
+
+func (d *drawer) CopyImg(x0, y0 int, img Image) {
+	d.dev.LockImg()
+	defer d.dev.UnlockImg()
+
+	// Coords in img coord space
+
+	minX := IntMax(x0, 0) - x0
+	minY := IntMax(y0, 0) - y0
+	maxX := IntMin(x0+img.W, d.img.Rect.Dx()) - x0
+	maxY := IntMin(y0+img.H, d.img.Rect.Dy()) - y0
+
+	w := maxX - minX
+	if w <= 0 {
+		return
+	}
+	for yi := minY; yi < maxY; yi++ {
+		copy(d.img.Pix[(y0+yi)*d.img.Stride+x0:], img.Bits[yi*img.W:yi*img.W+w])
+	}
+}
--- a/drawer/text.go
+++ b/drawer/text.go
@ -1,26 +0,0 @@
-package drawer
-
-import (
-	"image"
-	"image/color"
-
-	"golang.org/x/image/font"
-	"golang.org/x/image/math/fixed"
-)
-
-func (d *drawer) PutText(x, y int, text string) {
-	d.Lock()
-	defer d.Unlock()
-
-	// Create font drawer
-	col := color.Gray{255}
-	point := fixed.Point26_6{X: fixed.I(x), Y: fixed.I(y)}
-
-	drawer := &font.Drawer{
-		Dst:  d.img,
-		Src:  image.NewUniform(col),
-		Face: d.font,
-		Dot:  point,
-	}
-	drawer.DrawString(text)
-}
--- a/go.mod
+++ b/go.mod
@ -3,9 +3,10 @@ module gitea.unprism.ru/yotia/display-test
 go 1.22.5

 require (
-	gitea.unprism.ru/KRBL/sim-modem v0.1.7
+	gitea.unprism.ru/KRBL/mpu v0.1.0
+	gitea.unprism.ru/KRBL/sim-modem v0.1.8
 	github.com/stianeikeland/go-rpio/v4 v4.6.0
-	golang.org/x/image v0.19.0
+	golang.org/x/text v0.17.0
 	periph.io/x/conn/v3 v3.7.1
 	periph.io/x/devices/v3 v3.7.1
 	periph.io/x/host/v3 v3.8.2
@ -14,5 +15,6 @@ require (
 require (
 	github.com/creack/goselect v0.1.2 // indirect
 	go.bug.st/serial v1.6.2 // indirect
+	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
 	golang.org/x/sys v0.24.0 // indirect
 )
--- a/main.go
+++ b/main.go
@ -4,15 +4,20 @@ import (
 	"context"
 	"fmt"
 	"log"
+	"math/rand"
 	"os"
 	"os/signal"
 	"syscall"
 	"time"

+	"gitea.unprism.ru/yotia/display-test/api"
+	"gitea.unprism.ru/yotia/display-test/api/progress"
+	"gitea.unprism.ru/yotia/display-test/components"
 	"gitea.unprism.ru/yotia/display-test/display"
 	"gitea.unprism.ru/yotia/display-test/drawer"

 	"gitea.unprism.ru/KRBL/sim-modem/api/modem"
+	"gitea.unprism.ru/KRBL/sim-modem/api/modem/gps"
 )

 const (
@ -42,138 +47,195 @@ var d drawer.Drawer

 var m modem.Modem

-func DrawProgress(ctx context.Context, timeout time.Duration) error {
-	deadline := time.Now().Add(timeout)
-
-	// Draw outline
-	x := 0
-	y := d.GetFont().Metrics().Height.Ceil() + 4
-	w := d.GetImg().Rect.Dx()
-	h := d.GetFont().Metrics().Height.Ceil() - 4
-
-	d.PutBar(x, y, x+w, y+h, 255)
-	gap := 3
-
-	// Draw body
-	x += gap
-	y += gap
-	w -= 2 * gap
-	h -= 2 * gap
-	lastX := x
-
-	for {
-		select {
-		case <-ctx.Done():
-			return nil
-		case <-time.After(displayUpdateTimeout):
-			value := 1 - float64(time.Until(deadline).Milliseconds())/float64(timeout.Milliseconds())
-			newX := x + int(value*float64(w))
-			// Draw
-			d.FillBar(lastX, y, newX, y+h, 255)
-			lastX = newX
-			if value >= 1 {
-				return nil
-			}
-			if err := d.Flush(); err != nil {
-				return fmt.Errorf("display flush: %w", err)
-			}
-		}
-	}
-}
-
 func Init(ctx context.Context) error {
 	// Display init
 	var err error
-	dev, err = display.New(log.New(log.Writer(), "display", log.LstdFlags), display.SSD1306)
+	dev, err = display.New(log.New(log.Writer(), "display", log.LstdFlags), display.MT12232A)
 	if err != nil {
 		return fmt.Errorf("new display: %w", err)
 	}
 	logger.Println("Display inited")
+
+	// Create drawer
 	d := drawer.New(dev)

 	d.Clear()
-	d.PutText(0, d.GetFont().Metrics().Height.Ceil(), "Initing modem...")
+	//d.FillBar(0, 0, 10, 10, 1)
+	d.PutText(2, 0, "12345678901234567890")
+	d.PutText(2, drawer.LineH, "WWWWWWWWWWWWWWWWWWWWWWW")
+	d.PutText(1, drawer.LineH*2, "Progress bar")
 	d.Flush()

-	// Modem init
-	mInitCtx, mInitCtxCancel := context.WithCancel(ctx)
-	go DrawProgress(mInitCtx, 13*time.Second)
-	defer mInitCtxCancel()
+	time.Sleep(time.Second)

-	m = modem.New(log.New(logger.Writer(), "modem : ", log.LstdFlags))
-	if err := m.Init(); err != nil {
-		return fmt.Errorf("modem init: %w", err)
+	pbc, err := components.NewProgressBar(d, 0, drawer.LineH*3, d.W(), drawer.LineH)
+	if err != nil {
+		return fmt.Errorf("new progress bar: %w", err)
 	}
-	logger.Println("Display inited")
-	mInitCtxCancel()

-	d.Clear()
-	d.PutText(0, d.GetFont().Metrics().Height.Ceil(), "Modem inited.")
-	d.PutText(0, d.GetFont().Metrics().Height.Ceil()*2, "Starting test...")
-	d.Flush()
-	return nil
-}
-func Close() {
-	m.Close()
-	if d != nil {
-		d.Clear()
-		d.Flush()
-	}
-	dev.Close()
-}
+	pb := progress.NewHandler(pbc, 10)

-func MainLoop(ctx context.Context) error {
-	mainLoopTimeout := time.Second
-
-	frameCounter := 0
-	deadline := time.Now().Add(100 * time.Millisecond)
-	for {
+	for range 10 {
 		select {
 		case <-ctx.Done():
 			return nil
-		case <-time.After(time.Until(deadline)):
-			deadline = time.Now().Add(mainLoopTimeout)
-
-			st, _ := m.Gps().GetStatus()
-			data := m.GetData()
-
-			coordsStr := fmt.Sprintf("%03d°%02.0f'%s %03d°%02.0f'%s",
-				int(data.Latitude), (data.Latitude-float64(int(data.Latitude)))*100, data.LatitudeIndicator,
-				int(data.Longitude), (data.Longitude-float64(int(data.Longitude)))*100, data.LongitudeIndicator)
-			var str1 string
-			var str2 string
-
-			if frameCounter%4 < 2 {
-				str2 = fmt.Sprintf("Sat. count: %d", st.FoundSatelitesCount)
-			} else {
-				str2 = coordsStr
-			}
-			str1 = fmt.Sprintf("%s", time.Now().Format("15:04:05"))
-
-			d.Clear()
-			d.PutText(0, d.GetFont().Metrics().Height.Ceil(), str1)
-			d.PutText(0, d.GetFont().Metrics().Height.Ceil()*2, str2)
-			d.Flush()
-			frameCounter++
+		case <-time.After(time.Duration(rand.Int()%1000) * time.Millisecond):
 		}
+		pb.Checkpoint()
 	}
+	time.Sleep(400 * time.Millisecond)
+
+	pb.GetBar().Clear()
+	pb.Close()
+
+	d.FillBar(0, drawer.LineH*2, d.W(), drawer.LineH*3, 0)
+	d.PutText(1, drawer.LineH*2, "Done")
+	d.Flush()
+	time.Sleep(100 * time.Millisecond)
+
+	//d.PutText(0, 0, "можно 4 строки впихнуть")
+	//d.PutText(0, drawer.FontCharH+drawer.LineGap, "каждая буква 5x7")
+	//d.PutText(0, (drawer.FontCharH+drawer.LineGap)*2, "+ русский через жопу")
+	//d.PutText(0, (drawer.FontCharH+drawer.LineGap)*3, "KRBL forever!!")
+
+	// Modem init
+	//mInitCtx, mInitCtxCancel := context.WithCancel(ctx)
+	//go DrawProgress(mInitCtx, 13*time.Second)
+	//defer mInitCtxCancel()
+	//
+	//m = modem.New(log.New(logger.Writer(), "modem : ", log.LstdFlags))
+	//if err := m.Init(); err != nil {
+	//	return fmt.Errorf("modem init: %w", err)
+	//}
+	//logger.Println("Display inited")
+	//mInitCtxCancel()
+	//
+	//d.Clear()
+	//d.PutText(0, d.GetFont().Metrics().Height.Ceil(), "Modem inited.")
+	//d.PutText(0, d.GetFont().Metrics().Height.Ceil()*2, "Starting test...")
+	//d.Flush()
+	return nil
 }
+func Close() {
+	//m.Close()
+	//if d != nil {
+	//	d.Clear()
+	//	d.Flush()
+	//}
+	dev.Close()
+}
+
+//func MainLoop(ctx context.Context) error {
+//	mainLoopTimeout := time.Second
+//
+//	frameCounter := 0
+//	deadline := time.Now().Add(100 * time.Millisecond)
+//	for {
+//		select {
+//		case <-ctx.Done():
+//			return nil
+//		case <-time.After(time.Until(deadline)):
+//			deadline = time.Now().Add(mainLoopTimeout)
+//
+//			st, _ := m.Gps().GetStatus()
+//			data := m.GetData()
+//
+//			coordsStr := fmt.Sprintf("%03d°%02.0f'%s %03d°%02.0f'%s",
+//				int(data.Latitude), (data.Latitude-float64(int(data.Latitude)))*100, data.LatitudeIndicator,
+//				int(data.Longitude), (data.Longitude-float64(int(data.Longitude)))*100, data.LongitudeIndicator)
+//			var str1 string
+//			var str2 string
+//
+//			if frameCounter%4 < 2 {
+//				str2 = fmt.Sprintf("Sat. count: %d", st.FoundSatelitesCount)
+//			} else {
+//				str2 = coordsStr
+//			}
+//			str1 = fmt.Sprintf("%s", time.Now().Format("15:04:05"))
+//
+//			d.Clear()
+//			d.PutText(0, d.GetFont().Metrics().Height.Ceil(), str1)
+//			d.PutText(0, d.GetFont().Metrics().Height.Ceil()*2, str2)
+//			d.Flush()
+//			frameCounter++
+//		}
+//	}
+//}

 func mainE(ctx context.Context) error {
 	logger = log.New(os.Stdout, "main : ", log.LstdFlags)
 	//
-	disp, err := display.New(logger, display.MT12864A)
-	if err != nil {
-		return err
-	}
-	time.Sleep(2 * time.Second)
-	defer disp.Close()
-	// if err := Init(ctx); err != nil {
-	// 	return err
-	// }
-	// defer Close()
+	//if err := Init(ctx); err != nil {
+	//	return err
+	//}
+	////if err := dev.Test(ctx); err != nil {
+	////	return err
+	////}
+	//defer Close()
 	// if err := MainLoop(ctx); err != nil {
 	// 	return err
 	// }
-	return nil
+
+	logger.Println("")
+
+	a, err := api.New()
+	if err != nil {
+		return fmt.Errorf("new api: %w", err)
+	}
+	defer a.Close()
+	logger.Println("Inited")
+
+	// !!! Init example
+
+	// Setup init page
+	ip := a.SwitchToInitPage()
+	ip.SetTitle("KRBL")
+	pb := progress.NewHandler(ip.GetProgressBar(), 10)
+
+	// Simulate init process
+	for range 10 {
+		select {
+		case <-ctx.Done():
+			return nil
+		case <-time.After(60 * time.Millisecond):
+		}
+		pb.Checkpoint()
+	}
+	time.Sleep(200 * time.Millisecond)
+
+	// !!! Status page simulating
+
+	// Switch
+
+	services := []string{"NO SIGNAL", "GSM", "WCDMA", "LTE", "TDS"}
+	sp := a.SwitchToStatusPage()
+
+	for {
+		select {
+		case <-ctx.Done():
+			return nil
+		case <-time.After(1700 * time.Millisecond):
+			// Random coords
+			lat := float64(rand.Int()%10000) + float64(rand.Int()%1000000)/1000000
+			log := float64(rand.Int()%100000) + float64(rand.Int()%1000000)/1000000
+			latI := "N"
+			if rand.Int()%2 == 0 {
+				latI = "S"
+			}
+			logI := "E"
+			if rand.Int()%2 == 0 {
+				logI = "W"
+			}
+			sp.SetGps(gps.Data{
+				Latitude:           lat,
+				LatitudeIndicator:  latI,
+				Longitude:          log,
+				LongitudeIndicator: logI,
+			})
+
+			// Random rssi
+			sp.SetRssi(rand.Int() % 31)
+			sp.SetService(services[rand.Int()%len(services)])
+		}
+	}
 }
--- a/pkg/mt12232a/mt12232a.go
+++ b/pkg/mt12232a/mt12232a.go
@ -0,0 +1,168 @@
+package mt12232a
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"time"
+
+	"gitea.unprism.ru/yotia/display-test/pkg/parallel8bit"
+	"github.com/stianeikeland/go-rpio/v4"
+)
+
+const (
+	waitReadyTimeout = time.Microsecond
+)
+
+type mt12232a struct {
+	logger *log.Logger
+
+	dev parallel8bit.Device
+
+	pinCS  rpio.Pin
+	pinRES rpio.Pin
+}
+
+type Device interface {
+	Reset() error
+
+	WriteCode(cs rpio.State, c byte) error
+	WriteData(cs rpio.State, b byte) error
+	WriteDatas(cs rpio.State, b []byte) error
+
+	ReadData(cs rpio.State) (byte, error)
+	ReadStatus(cs rpio.State) byte
+
+	io.Closer
+}
+
+func New(logger *log.Logger) (Device, error) {
+	rpio.Open()
+
+	d := mt12232a{
+		logger: logger,
+
+		dev: parallel8bit.New(logger, parallel8bit.DevicePins{
+			PinA0: rpio.Pin(1), // 19
+			PinRW: rpio.Pin(13),
+			PinE:  rpio.Pin(12),
+
+			PinDB0: rpio.Pin(22),
+			PinDB1: rpio.Pin(10),
+			PinDB2: rpio.Pin(9),
+			PinDB3: rpio.Pin(11),
+			PinDB4: rpio.Pin(21),
+			PinDB5: rpio.Pin(20),
+			PinDB6: rpio.Pin(26),
+			PinDB7: rpio.Pin(16),
+		}),
+
+		pinCS:  rpio.Pin(17),
+		pinRES: rpio.Pin(27),
+	}
+	d.pinCS.Output()
+	d.pinRES.Output()
+	d.dev.Reset()
+	d.pinCS.Low()
+	d.pinRES.High()
+
+	return &d, nil
+}
+
+func (d *mt12232a) Close() error {
+	d.pinCS.Low()
+	//d.pinRES.Low() // TMP
+	d.dev.Pins().PinA0.Low()
+	d.dev.Pins().PinE.Low()
+	d.dev.Pins().PinRW.Low()
+	d.dev.Pins().PinDB0.Low()
+	d.dev.Pins().PinDB1.Low()
+	d.dev.Pins().PinDB2.Low()
+	d.dev.Pins().PinDB3.Low()
+	d.dev.Pins().PinDB4.Low()
+	d.dev.Pins().PinDB5.Low()
+	d.dev.Pins().PinDB6.Low()
+	d.dev.Pins().PinDB7.Low()
+
+	return rpio.Close()
+}
+
+func (d *mt12232a) status() {
+	d.logger.Printf("ST L: %08b R: %08b\n", d.ReadStatus(0)&0xFF, d.ReadStatus(1)&0xFF)
+}
+
+func (d *mt12232a) Reset() error {
+	d.pinRES.Low()
+	time.Sleep(10 * time.Microsecond)
+	d.pinRES.High()
+	time.Sleep(2 * time.Millisecond)
+
+	return nil
+}
+
+// Write codes
+
+func (d *mt12232a) WriteCode(cs rpio.State, c byte) error {
+	return d.writeByte(c, 0, cs)
+}
+
+// Write data as byte
+
+func (d *mt12232a) WriteData(cs rpio.State, b byte) error {
+	return d.writeByte(b, 1, cs)
+}
+
+func (d *mt12232a) WriteDatas(cs rpio.State, b []byte) error {
+	return d.writeBytes(b, 1, cs)
+}
+
+// Read data
+
+func (d *mt12232a) ReadData(cs rpio.State) (byte, error) {
+	return d.readByte(1, cs)
+}
+
+// Low level functions
+
+func (d *mt12232a) writeByte(b byte, cd, cs rpio.State) error {
+	if err := d.waitReady(cs); err != nil {
+		return fmt.Errorf("wait ready: %w", err)
+	}
+	d.pinCS.Write(cs) // Select cristals
+
+	d.dev.WriteByte(b, cd)
+	return nil
+}
+
+func (d *mt12232a) writeBytes(b []byte, cd, cs rpio.State) error {
+	if err := d.waitReady(cs); err != nil {
+		return fmt.Errorf("wait ready: %w", err)
+	}
+	d.pinCS.Write(cs) // Select cristals
+
+	d.dev.WriteBytes(b, cd)
+	return nil
+}
+
+func (d *mt12232a) readByte(cd, cs rpio.State) (byte, error) {
+	// Setup
+	if err := d.waitReady(cs); err != nil {
+		return 0, fmt.Errorf("wait ready: %w", err)
+	}
+	d.pinCS.Write(cs) // Select cristals
+
+	return d.dev.ReadByte(cd), nil
+}
+
+// Wait, checking status byte
+func (d *mt12232a) waitReady(cs rpio.State) error {
+	// d.pinCS.Write(cs) // Select cristals
+	// return d.dev.WaitReady()
+	time.Sleep(waitReadyTimeout)
+	return nil
+}
+
+func (d *mt12232a) ReadStatus(cs rpio.State) byte {
+	d.pinCS.Write(cs) // Select cristals
+	return d.dev.ReadByte(0)
+}
--- a/pkg/mt12864a/mt12864a.go
+++ b/pkg/mt12864a/mt12864a.go
@ -6,31 +6,15 @@ import (
 	"log"
 	"time"

+	"gitea.unprism.ru/yotia/display-test/pkg/parallel8bit"
 	"github.com/stianeikeland/go-rpio/v4"
 )

-const (
-	enablePrintPins    = false
-	adressWriteTimeout = 140 * time.Nanosecond
-	dataStrobeTimeout  = 250 * time.Nanosecond // (Data transfer)
-	maxWaitCycles      = 100
-)
-
 type mt12864a struct {
 	logger *log.Logger

-	// GPIO pins
-	pinA0  rpio.Pin
-	pinRW  rpio.Pin
-	pinE   rpio.Pin
-	pinDB0 rpio.Pin
-	pinDB1 rpio.Pin
-	pinDB2 rpio.Pin
-	pinDB3 rpio.Pin
-	pinDB4 rpio.Pin
-	pinDB5 rpio.Pin
-	pinDB6 rpio.Pin
-	pinDB7 rpio.Pin
+	dev parallel8bit.Device
+
 	pinE1  rpio.Pin
 	pinE2  rpio.Pin
 	pinRES rpio.Pin
@ -57,34 +41,31 @@ func New(logger *log.Logger) (Device, error) {

 	d := mt12864a{
 		logger: logger,
-		pinA0:  rpio.Pin(18),
-		pinRW:  rpio.Pin(17),
-		pinE:   rpio.Pin(27),

-		pinDB0: rpio.Pin(22),
-		pinDB1: rpio.Pin(10),
-		pinDB2: rpio.Pin(9), // From 21
-		pinDB3: rpio.Pin(11),
-		pinDB4: rpio.Pin(12),
-		pinDB5: rpio.Pin(16), // From 32
-		pinDB6: rpio.Pin(20), // From 31
-		pinDB7: rpio.Pin(13), // From 33
+		dev: parallel8bit.New(logger, parallel8bit.DevicePins{
+			PinA0: rpio.Pin(18),
+			PinRW: rpio.Pin(17),
+			PinE:  rpio.Pin(27),

-		// Reverted
-		// pinDB7: rpio.Pin(15),
-		// pinDB6: rpio.Pin(19),
-		// pinDB5: rpio.Pin(21),
-		// pinDB4: rpio.Pin(23),
-		// pinDB3: rpio.Pin(27),
-		// pinDB2: rpio.Pin(32),
-		// pinDB1: rpio.Pin(31),
-		// pinDB0: rpio.Pin(33),
+			PinDB0: rpio.Pin(22),
+			PinDB1: rpio.Pin(10),
+			PinDB2: rpio.Pin(9), // From 21
+			PinDB3: rpio.Pin(11),
+			PinDB4: rpio.Pin(12),
+			PinDB5: rpio.Pin(16), // From 32
+			PinDB6: rpio.Pin(20), // From 31
+			PinDB7: rpio.Pin(13), // From 33
+
+		}),

 		pinE1:  rpio.Pin(19),
 		pinE2:  rpio.Pin(26),
 		pinRES: rpio.Pin(21),
 	}
-	d.AllOutput()
+	d.pinE1.Output()
+	d.pinE2.Output()
+	d.pinRES.Output()
+	d.dev.Reset()

 	return &d, nil
 }
@ -119,38 +100,35 @@ func (d *mt12864a) SetPixel(x, y byte, c bool) error {
 }

 func (d *mt12864a) PowerOn() error {
-	d.pinA0.Low()
-	d.pinRW.Low()
-	d.pinE.Low()
-	d.pinDB0.Low()
-	d.pinDB1.Low()
-	d.pinDB2.Low()
-	d.pinDB3.Low()
-	d.pinDB4.Low()
-	d.pinDB5.Low()
-	d.pinDB6.Low()
-	d.pinDB7.Low()
-	d.pinE1.Low()
-	d.pinE2.Low()
-	d.pinRES.Low()
-	d.logger.Println("All low ")
-	d.PrintPins()
-	d.logger.Println("Power on")
-	d.pinE.Low()
+	d.logger.Println(d.ReadStatus(1, 0)) // Should be 0
+	d.logger.Println("Reset")
 	d.pinRES.Low()
 	time.Sleep(time.Microsecond)
+	d.logger.Println(d.ReadStatus(1, 0)) // Should be 48 (power off and reset)
 	d.pinRES.High()
 	time.Sleep(10 * time.Microsecond)
+	d.logger.Println(d.ReadStatus(1, 0)) // Should be 32 (power off)

-	d.PrintPins()
+	// Module is reset and should be turned off
+	if d.ReadStatus(1, 0) == 0 || d.ReadStatus(0, 1) == 0 {
+		return fmt.Errorf("no response from display(or it is possible that it is turned on but...)")
+	}
+
+	d.logger.Println("Power on")
 	d.logger.Println("Top line to 0")
 	d.WriteCodeL(0xC0) // Top line to 0
 	d.WriteCodeR(0xC0) // Top line to 0
-	d.PrintPins()
 	d.logger.Println("Display on")
 	d.WriteCodeL(0x3F) // Display on
 	d.WriteCodeR(0x3F) // Display on
-	d.PrintPins()
+
+	// Check that crystals are turned on
+	if (d.ReadStatus(1, 0) & (1 << 5)) != 0 {
+		return fmt.Errorf("Left cristal is still off")
+	}
+	if (d.ReadStatus(0, 1) & (1 << 5)) != 0 {
+		return fmt.Errorf("Right cristal is still off")
+	}

 	return nil
 }
@ -188,7 +166,7 @@ func (d *mt12864a) ReadDataR() (byte, error) {
 // Low level functions

 func (d *mt12864a) writeByte(b byte, cd, l, r rpio.State) error {
-	d.logger.Println("Write byte", b, cd, l, r)
+	// d.logger.Println("Write byte", b, cd, l, r)
 	if l == rpio.High && r == rpio.High {
 		d.logger.Println("L and R are high!!!")
 		return fmt.Errorf("cannot write left and right at the same times")
@ -196,37 +174,10 @@ func (d *mt12864a) writeByte(b byte, cd, l, r rpio.State) error {
 	if err := d.waitReady(l, r); err != nil {
 		return fmt.Errorf("wait ready: %w", err)
 	}
-	d.busOutput()
-	d.pinRW.Low() // We write
-	d.pinA0.Write(cd)
 	d.pinE1.Write(l) // Select cristals
 	d.pinE2.Write(r) // Select cristals

-	// Write bus
-	d.pinDB0.Write(rpio.State((b >> 0) & 1))
-	d.pinDB1.Write(rpio.State((b >> 1) & 1))
-	d.pinDB2.Write(rpio.State((b >> 2) & 1))
-	d.pinDB3.Write(rpio.State((b >> 3) & 1))
-	d.pinDB4.Write(rpio.State((b >> 4) & 1))
-	d.pinDB5.Write(rpio.State((b >> 5) & 1))
-	d.pinDB6.Write(rpio.State((b >> 6) & 1))
-	d.pinDB7.Write(rpio.State((b >> 7) & 1))
-
-	// Strobe start
-	d.pinE.High()
-	time.Sleep(dataStrobeTimeout)
-
-	// Strobe end
-	d.pinE.Low()
-	d.pinDB0.Low()
-	d.pinDB1.Low()
-	d.pinDB2.Low()
-	d.pinDB3.Low()
-	d.pinDB4.Low()
-	d.pinDB5.Low()
-	d.pinDB6.Low()
-	d.pinDB7.Low()
-	time.Sleep(time.Millisecond - dataStrobeTimeout - adressWriteTimeout)
+	d.dev.WriteByte(b, cd)
 	return nil
 }

@ -237,146 +188,24 @@ func (d *mt12864a) readByte(cd, l, r rpio.State) (byte, error) {
 	}

 	// Setup
-	var b byte
 	if err := d.waitReady(l, r); err != nil {
 		return 0, fmt.Errorf("wait ready: %w", err)
 	}
-	d.busOutput()
-	d.pinRW.High() // We write
-	d.pinA0.Write(cd)
 	d.pinE1.Write(l) // Select cristals
 	d.pinE2.Write(r) // Select cristals

-	// Strobe start
-	d.pinE.High()
-	time.Sleep(dataStrobeTimeout)
-
-	// Read
-	b = uint8(d.pinDB0.Read()) |
-		(uint8(d.pinDB1.Read()) << 1) |
-		(uint8(d.pinDB2.Read()) << 2) |
-		(uint8(d.pinDB3.Read()) << 3) |
-		(uint8(d.pinDB4.Read()) << 4) |
-		(uint8(d.pinDB5.Read()) << 5) |
-		(uint8(d.pinDB6.Read()) << 6) |
-		(uint8(d.pinDB7.Read()) << 7)
-
-	// Strobe end
-	d.pinE.Low()
-	time.Sleep(time.Millisecond - dataStrobeTimeout - adressWriteTimeout)
-	return b, nil
+	return d.dev.ReadByte(cd), nil
 }

 // Wait, checking status byte
 func (d *mt12864a) waitReady(l, r rpio.State) error {
-	d.logger.Println("Wait ready", l, r)
-	d.busInput()     // Set bus to input
-	d.pinRW.High()   // We read
-	d.pinA0.Low()    // Status
 	d.pinE1.Write(l) // Select cristals
 	d.pinE2.Write(r) // Select cristals
-	time.Sleep(adressWriteTimeout)
-
-	// Strobe start
-	d.pinE.High()
-	time.Sleep(dataStrobeTimeout)
-
-	// Wait status flag drop
-	ok := false
-	d.busInput() // Set bus to input
-	for counter := 0; counter < maxWaitCycles; counter++ {
-		if d.pinDB7.Read() != rpio.High {
-			d.logger.Printf("BUS:%d%d%d%d%d%d%d%d\n", d.pinDB0.Read(), d.pinDB1.Read(), d.pinDB2.Read(), d.pinDB3.Read(), d.pinDB4.Read(), d.pinDB5.Read(), d.pinDB6.Read(), d.pinDB7.Read())
-			ok = true
-			break
-		}
-	}
-	if !ok {
-		return fmt.Errorf("busy timeout")
-	}
-
-	// Strobe end
-	d.pinE.Low()
-	time.Sleep(time.Millisecond - dataStrobeTimeout - adressWriteTimeout)
-	d.logger.Println("Ready")
-	return nil
+	return d.dev.WaitReady()
 }

 func (d *mt12864a) ReadStatus(l, r rpio.State) byte {
-	d.busInput()     // Set bus to input
-	d.pinRW.High()   // We read
-	d.pinA0.Low()    // Status
 	d.pinE1.Write(l) // Select cristals
 	d.pinE2.Write(r) // Select cristals
-	time.Sleep(adressWriteTimeout)
-	// Strobe start
-	d.pinE.High()
-	time.Sleep(dataStrobeTimeout)
-	d.busInput()
-
-	var b byte = uint8(d.pinDB0.Read()) |
-		(uint8(d.pinDB1.Read()) << 1) |
-		(uint8(d.pinDB2.Read()) << 2) |
-		(uint8(d.pinDB3.Read()) << 3) |
-		(uint8(d.pinDB4.Read()) << 4) |
-		(uint8(d.pinDB5.Read()) << 5) |
-		(uint8(d.pinDB6.Read()) << 6) |
-		(uint8(d.pinDB7.Read()) << 7)
-
-	// Strobe end
-	d.pinE.Low()
-	time.Sleep(time.Millisecond - dataStrobeTimeout - adressWriteTimeout)
-	return b
-}
-
-func (d *mt12864a) PrintPins() {
-	if !enablePrintPins {
-		return
-	}
-	d.AllInput()
-	d.logger.Printf("A0:%d RW:%d E:%d BUS:%d%d%d%d%d%d%d%d E1:%d E2:%d RES:%d\n", d.pinA0.Read(), d.pinRW.Read(), d.pinE.Read(), d.pinDB0.Read(), d.pinDB1.Read(), d.pinDB2.Read(), d.pinDB3.Read(), d.pinDB4.Read(), d.pinDB5.Read(), d.pinDB6.Read(), d.pinDB7.Read(), d.pinE1.Read(), d.pinE2.Read(), d.pinRES.Read())
-	d.AllOutput()
-}
-
-func (d *mt12864a) AllOutput() {
-	d.pinA0.Output()
-	d.pinRW.Output()
-	d.pinE.Output()
-	d.pinE1.Output()
-	d.pinE2.Output()
-	d.pinRES.Output()
-	d.busOutput()
-}
-
-func (d *mt12864a) AllInput() {
-	d.pinA0.Input()
-	d.pinRW.Input()
-	d.pinE.Input()
-	d.pinE1.Input()
-	d.pinE2.Input()
-	d.pinRES.Input()
-	d.busInput()
-}
-
-// Set bus pins to output
-func (d *mt12864a) busOutput() {
-	d.pinDB0.Output()
-	d.pinDB1.Output()
-	d.pinDB2.Output()
-	d.pinDB3.Output()
-	d.pinDB4.Output()
-	d.pinDB5.Output()
-	d.pinDB6.Output()
-	d.pinDB7.Output()
-}
-
-func (d *mt12864a) busInput() {
-	d.pinDB0.Input()
-	d.pinDB1.Input()
-	d.pinDB2.Input()
-	d.pinDB3.Input()
-	d.pinDB4.Input()
-	d.pinDB5.Input()
-	d.pinDB6.Input()
-	d.pinDB7.Input()
+	return d.dev.ReadByte(1)
 }
--- a/pkg/parallel8bit/parallel8bit.go
+++ b/pkg/parallel8bit/parallel8bit.go
@ -0,0 +1,218 @@
+package parallel8bit
+
+import (
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/stianeikeland/go-rpio/v4"
+)
+
+const (
+	adressWriteTimeout = 50 * time.Nanosecond   // 40
+	dataStrobeTimeout  = 200 * time.Nanosecond  // (Data transfer) 160
+	dataReadTimeout    = 400 * time.Nanosecond  // 300
+	gapTimeout         = 2000 * time.Nanosecond // TIM // 2000
+	maxWaitCycles      = 100
+)
+
+// Interface for MT displays (do not set cristals bits)
+type Device interface {
+	Reset()
+	WriteByte(b byte, cd rpio.State)
+	WriteBytes(b []byte, cd rpio.State)
+	ReadByte(cd rpio.State) byte
+
+	Pins() DevicePins
+
+	WaitReady() error
+}
+
+type DevicePins struct {
+	// GPIO pins
+	PinA0  rpio.Pin
+	PinRW  rpio.Pin
+	PinE   rpio.Pin
+	PinDB0 rpio.Pin
+	PinDB1 rpio.Pin
+	PinDB2 rpio.Pin
+	PinDB3 rpio.Pin
+	PinDB4 rpio.Pin
+	PinDB5 rpio.Pin
+	PinDB6 rpio.Pin
+	PinDB7 rpio.Pin
+}
+
+type device struct {
+	logger *log.Logger
+
+	isBusOutput bool
+	DevicePins
+}
+
+func New(logger *log.Logger, pins DevicePins) Device {
+	return &device{
+		logger:     logger,
+		DevicePins: pins,
+	}
+}
+
+func (d *device) Pins() DevicePins {
+	return d.DevicePins
+}
+
+func (d *device) Reset() {
+	d.PinA0.Output()
+	d.PinRW.Output()
+	d.PinE.Output()
+	d.busOutput()
+	d.PinA0.Low()
+	d.PinRW.Low()
+	d.PinE.High()
+	d.PinDB0.Low()
+	d.PinDB1.Low()
+	d.PinDB2.Low()
+	d.PinDB3.Low()
+	d.PinDB4.Low()
+	d.PinDB5.Low()
+	d.PinDB6.Low()
+	d.PinDB7.Low()
+}
+
+func (d *device) WriteByte(b byte, cd rpio.State) {
+	d.busOutput()
+	d.PinRW.Low() // We write
+	d.PinA0.Write(cd)
+
+	// Write bus
+	d.PinDB0.Write(rpio.State((b >> 0) & 1))
+	d.PinDB1.Write(rpio.State((b >> 1) & 1))
+	d.PinDB2.Write(rpio.State((b >> 2) & 1))
+	d.PinDB3.Write(rpio.State((b >> 3) & 1))
+	d.PinDB4.Write(rpio.State((b >> 4) & 1))
+	d.PinDB5.Write(rpio.State((b >> 5) & 1))
+	d.PinDB6.Write(rpio.State((b >> 6) & 1))
+	d.PinDB7.Write(rpio.State((b >> 7) & 1))
+
+	time.Sleep(adressWriteTimeout)
+
+	d.PinE.Low() // Strobe start
+	time.Sleep(dataStrobeTimeout)
+	d.PinE.High() // Strobe end
+
+	time.Sleep(gapTimeout - dataStrobeTimeout - adressWriteTimeout)
+}
+
+func (d *device) WriteBytes(b []byte, cd rpio.State) {
+	d.busOutput()
+	d.PinRW.Low() // We write
+	d.PinA0.Write(cd)
+
+	// Write bus
+	d.PinDB0.Write(rpio.State(b[0]))
+	d.PinDB1.Write(rpio.State(b[1]))
+	d.PinDB2.Write(rpio.State(b[2]))
+	d.PinDB3.Write(rpio.State(b[3]))
+	d.PinDB4.Write(rpio.State(b[4]))
+	d.PinDB5.Write(rpio.State(b[5]))
+	d.PinDB6.Write(rpio.State(b[6]))
+	d.PinDB7.Write(rpio.State(b[7]))
+
+	time.Sleep(adressWriteTimeout)
+
+	d.PinE.Low() // Strobe start
+	time.Sleep(dataStrobeTimeout)
+	d.PinE.High() // Strobe end
+
+	time.Sleep(gapTimeout - dataStrobeTimeout - adressWriteTimeout)
+}
+
+func (d *device) ReadByte(cd rpio.State) byte {
+	// Setup
+	var b byte
+	d.PinA0.Write(cd)
+	d.PinRW.High() // We read
+	d.busInput()
+
+	// Strobe start
+	time.Sleep(adressWriteTimeout)
+	d.PinE.Low()
+	time.Sleep(dataReadTimeout)
+
+	// Read
+	b = uint8(d.PinDB0.Read()) |
+		(uint8(d.PinDB1.Read()) << 1) |
+		(uint8(d.PinDB2.Read()) << 2) |
+		(uint8(d.PinDB3.Read()) << 3) |
+		(uint8(d.PinDB4.Read()) << 4) |
+		(uint8(d.PinDB5.Read()) << 5) |
+		(uint8(d.PinDB6.Read()) << 6) |
+		(uint8(d.PinDB7.Read()) << 7)
+
+	// Strobe end
+	d.PinE.High()
+	time.Sleep(gapTimeout - dataReadTimeout - adressWriteTimeout)
+	return b
+}
+
+func (d *device) WaitReady() error {
+	d.busInput()   // Set bus to input
+	d.PinA0.Low()  // Status
+	d.PinRW.High() // We read
+	time.Sleep(adressWriteTimeout)
+
+	// Strobe start
+	d.PinE.Low()
+	time.Sleep(dataReadTimeout)
+
+	// Wait status flag drop
+	ok := false
+	for counter := 0; counter < maxWaitCycles; counter++ {
+		if d.PinDB7.Read() != rpio.High {
+			//d.logger.Printf("BUS:%d%d%d%d%d%d%d%d\n", d.PinDB0.Read(), d.PinDB1.Read(), d.PinDB2.Read(), d.PinDB3.Read(), d.PinDB4.Read(), d.PinDB5.Read(), d.PinDB6.Read(), d.PinDB7.Read())
+			ok = true
+			break
+		}
+		fmt.Print(".")
+	}
+	if !ok {
+		return fmt.Errorf("busy timeout")
+	}
+
+	// Strobe end
+	d.PinE.High()
+	time.Sleep(gapTimeout - dataReadTimeout - adressWriteTimeout)
+	// d.logger.Println("Ready")
+	return nil
+}
+
+// Set bus Pins to output
+func (d *device) busOutput() {
+	if d.isBusOutput {
+		return
+	}
+	d.PinDB0.Output()
+	d.PinDB1.Output()
+	d.PinDB2.Output()
+	d.PinDB3.Output()
+	d.PinDB4.Output()
+	d.PinDB5.Output()
+	d.PinDB6.Output()
+	d.PinDB7.Output()
+	d.isBusOutput = true
+}
+
+func (d *device) busInput() {
+	if !d.isBusOutput {
+		return
+	}
+	d.PinDB0.Input()
+	d.PinDB1.Input()
+	d.PinDB2.Input()
+	d.PinDB3.Input()
+	d.PinDB4.Input()
+	d.PinDB5.Input()
+	d.PinDB6.Input()
+	d.PinDB7.Input()
+	d.isBusOutput = false
+}
Author	SHA1	Message	Date
Andrey Egorov	58a0d17e47	Add: status page screen change support	2024-10-06 21:31:23 +03:00
Andrey Egorov	0495860996	Add: image, signal and service status output	2024-10-06 20:20:22 +03:00
Andrey Egorov	0976b5c8d0	Add: status page	2024-09-30 21:56:45 +03:00
Andrey Egorov	a4fda8303b	Add: pages, text component	2024-09-29 21:09:59 +03:00
Andrey Egorov	bad142a565	Add: components, progress bar	2024-09-22 21:53:22 +03:00
Andrey Egorov	f29bbf8345	Add: async partial flush	2024-09-18 22:32:47 +03:00
Andrey Egorov	eff00d2351	Add: 1251 5x7 font	2024-09-15 20:21:57 +03:00
Andrey Egorov	5d67d667d7	Fix: double strobe	2024-09-15 17:19:19 +03:00
Andrey Egorov	30359a0a22	fix: power on	2024-09-11 18:55:26 +03:00
Andrey Egorov	8889e959ee	fix: error handling, timeouts	2024-09-09 10:31:36 +03:00
Andrey Egorov	7e41196dce	Add: beta working mt12232a display	2024-09-04 21:05:02 +03:00
Andrey Egorov	c6af2620e0	Add: mt12232a lib	2024-09-02 13:39:06 +03:00
Andrey Egorov	efb2447c84	Add: separated Parallel 8 bit lib	2024-09-02 13:11:36 +03:00