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microbitmatrix: refactor to eliminate duplicate code with microbit v1/v2

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Signed-off-by: deadprogram <ron@hybridgroup.com>
This commit is contained in:
deadprogram
2021-01-28 00:01:16 +01:00
committed by Daniel Esteban
parent 231ec57202
commit 01acd977f3
3 changed files with 112 additions and 139 deletions
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microbitmatrix/microbitmatrix-v1.go
+112
View File
@@ -0,0 +1,112 @@
// +build microbit
// Package microbitmatrix implements a driver for the BBC micro:bit's LED matrix.
//
// Schematic: https://github.com/bbcmicrobit/hardware/blob/master/SCH_BBC-Microbit_V1.3B.pdf
//
package microbitmatrix // import "tinygo.org/x/drivers/microbitmatrix"
import (
"machine"
"time"
)
var matrixRotations = [4][5][5][2]uint8{
{ // 0
{{0, 0}, {1, 3}, {0, 1}, {1, 4}, {0, 2}},
{{2, 3}, {2, 4}, {2, 5}, {2, 6}, {2, 7}},
{{1, 1}, {0, 8}, {1, 2}, {2, 8}, {1, 0}},
{{0, 7}, {0, 6}, {0, 5}, {0, 4}, {0, 3}},
{{2, 2}, {1, 6}, {2, 0}, {1, 5}, {2, 1}},
},
{ // 90 CCW
{{0, 2}, {2, 7}, {1, 0}, {0, 3}, {2, 1}},
{{1, 4}, {2, 6}, {2, 8}, {0, 4}, {1, 5}},
{{0, 1}, {2, 5}, {1, 2}, {0, 5}, {2, 0}},
{{1, 3}, {2, 4}, {0, 8}, {0, 6}, {1, 6}},
{{0, 0}, {2, 3}, {1, 1}, {0, 7}, {2, 2}},
},
{ // 180
{{2, 1}, {1, 5}, {2, 0}, {1, 6}, {2, 2}},
{{0, 3}, {0, 4}, {0, 5}, {0, 6}, {0, 7}},
{{1, 0}, {2, 8}, {1, 2}, {0, 8}, {1, 1}},
{{2, 7}, {2, 6}, {2, 5}, {2, 4}, {2, 3}},
{{0, 2}, {1, 4}, {0, 1}, {1, 3}, {0, 0}},
},
{ // 270
{{2, 2}, {0, 7}, {1, 1}, {2, 3}, {0, 0}},
{{1, 6}, {0, 6}, {0, 8}, {2, 4}, {1, 3}},
{{2, 0}, {0, 5}, {1, 2}, {2, 5}, {0, 1}},
{{1, 5}, {0, 4}, {2, 8}, {2, 6}, {1, 4}},
{{2, 1}, {0, 3}, {1, 0}, {2, 7}, {0, 2}},
},
}
type Device struct {
pin [12]machine.Pin
buffer [3][9]bool
rotation uint8
}
// Configure sets up the device.
func (d *Device) Configure(cfg Config) {
d.SetRotation(cfg.Rotation)
for i := machine.LED_COL_1; i <= machine.LED_ROW_3; i++ {
d.pin[i-machine.LED_COL_1] = i
d.pin[i-machine.LED_COL_1].Configure(machine.PinConfig{Mode: machine.PinOutput})
}
d.ClearDisplay()
d.DisableAll()
}
// Display sends the buffer (if any) to the screen.
func (d *Device) Display() error {
for row := 0; row < 3; row++ {
d.DisableAll()
d.pin[9+row].High()
for col := 0; col < 9; col++ {
if d.buffer[row][col] {
d.pin[col].Low()
}
}
time.Sleep(time.Millisecond * 2)
}
return nil
}
// ClearDisplay erases the internal buffer
func (d *Device) ClearDisplay() {
for row := 0; row < 3; row++ {
for col := 0; col < 9; col++ {
d.buffer[row][col] = false
}
}
}
// DisableAll disables all the LEDs without modifying the buffer
func (d *Device) DisableAll() {
for i := machine.LED_COL_1; i <= machine.LED_COL_9; i++ {
d.pin[i-machine.LED_COL_1].High()
}
for i := machine.LED_ROW_1; i <= machine.LED_ROW_3; i++ {
d.pin[i-machine.LED_COL_1].Low()
}
}
// EnableAll enables all the LEDs without modifying the buffer
func (d *Device) EnableAll() {
for i := machine.LED_COL_1; i <= machine.LED_COL_9; i++ {
d.pin[i-machine.LED_COL_1].Low()
}
for i := machine.LED_ROW_1; i <= machine.LED_ROW_3; i++ {
d.pin[i-machine.LED_COL_1].High()
}
}
// Size returns the current size of the display.
func (d *Device) Size() (w, h int16) {
return 5, 5
}
microbitmatrix/microbitmatrix-v2.go
-35
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@@ -7,7 +7,6 @@
package microbitmatrix // import "tinygo.org/x/drivers/microbitmatrix"
import (
"image/color"
"machine"
"time"
)
@@ -43,21 +42,12 @@ var matrixRotations = [4][5][5][2]uint8{
},
}
type Config struct {
Rotation uint8
}
type Device struct {
pin [10]machine.Pin
buffer [5][5]bool
rotation uint8
}
// New returns a new microbitmatrix driver.
func New() Device {
return Device{}
}
// Configure sets up the device.
func (d *Device) Configure(cfg Config) {
d.SetRotation(cfg.Rotation)
@@ -82,31 +72,6 @@ func (d *Device) Configure(cfg Config) {
d.DisableAll()
}
// SetRotation changes the rotation of the LED matrix
func (d *Device) SetRotation(rotation uint8) {
d.rotation = rotation % 4
}
// SetPixel modifies the internal buffer in a single pixel.
func (d *Device) SetPixel(x int16, y int16, c color.RGBA) {
if x < 0 || x >= 5 || y < 0 || y >= 5 {
return
}
if c.R != 0 || c.G != 0 || c.B != 0 {
d.buffer[matrixRotations[d.rotation][x][y][0]][matrixRotations[d.rotation][x][y][1]] = true
} else {
d.buffer[matrixRotations[d.rotation][x][y][0]][matrixRotations[d.rotation][x][y][1]] = false
}
}
// GetPixel returns if the specific pixels is enabled
func (d *Device) GetPixel(x int16, y int16) bool {
if x < 0 || x >= 5 || y < 0 || y >= 5 {
return false
}
return d.buffer[matrixRotations[d.rotation][x][y][0]][matrixRotations[d.rotation][x][y][1]]
}
// Display sends the buffer (if any) to the screen.
func (d *Device) Display() error {
for x := 0; x < 5; x++ {
microbitmatrix/microbitmatrix.go
-104
View File
@@ -1,5 +1,3 @@
// +build microbit
// Package microbitmatrix implements a driver for the BBC micro:bit's LED matrix.
//
// Schematic: https://github.com/bbcmicrobit/hardware/blob/master/SCH_BBC-Microbit_V1.3B.pdf
@@ -8,68 +6,17 @@ package microbitmatrix // import "tinygo.org/x/drivers/microbitmatrix"
import (
"image/color"
"machine"
"time"
)
var matrixRotations = [4][5][5][2]uint8{
{ // 0
{{0, 0}, {1, 3}, {0, 1}, {1, 4}, {0, 2}},
{{2, 3}, {2, 4}, {2, 5}, {2, 6}, {2, 7}},
{{1, 1}, {0, 8}, {1, 2}, {2, 8}, {1, 0}},
{{0, 7}, {0, 6}, {0, 5}, {0, 4}, {0, 3}},
{{2, 2}, {1, 6}, {2, 0}, {1, 5}, {2, 1}},
},
{ // 90 CCW
{{0, 2}, {2, 7}, {1, 0}, {0, 3}, {2, 1}},
{{1, 4}, {2, 6}, {2, 8}, {0, 4}, {1, 5}},
{{0, 1}, {2, 5}, {1, 2}, {0, 5}, {2, 0}},
{{1, 3}, {2, 4}, {0, 8}, {0, 6}, {1, 6}},
{{0, 0}, {2, 3}, {1, 1}, {0, 7}, {2, 2}},
},
{ // 180
{{2, 1}, {1, 5}, {2, 0}, {1, 6}, {2, 2}},
{{0, 3}, {0, 4}, {0, 5}, {0, 6}, {0, 7}},
{{1, 0}, {2, 8}, {1, 2}, {0, 8}, {1, 1}},
{{2, 7}, {2, 6}, {2, 5}, {2, 4}, {2, 3}},
{{0, 2}, {1, 4}, {0, 1}, {1, 3}, {0, 0}},
},
{ // 270
{{2, 2}, {0, 7}, {1, 1}, {2, 3}, {0, 0}},
{{1, 6}, {0, 6}, {0, 8}, {2, 4}, {1, 3}},
{{2, 0}, {0, 5}, {1, 2}, {2, 5}, {0, 1}},
{{1, 5}, {0, 4}, {2, 8}, {2, 6}, {1, 4}},
{{2, 1}, {0, 3}, {1, 0}, {2, 7}, {0, 2}},
},
}
type Config struct {
Rotation uint8
}
type Device struct {
pin [12]machine.Pin
buffer [3][9]bool
rotation uint8
}
// New returns a new microbitmatrix driver.
func New() Device {
return Device{}
}
// Configure sets up the device.
func (d *Device) Configure(cfg Config) {
d.SetRotation(cfg.Rotation)
for i := machine.LED_COL_1; i <= machine.LED_ROW_3; i++ {
d.pin[i-machine.LED_COL_1] = i
d.pin[i-machine.LED_COL_1].Configure(machine.PinConfig{Mode: machine.PinOutput})
}
d.ClearDisplay()
d.DisableAll()
}
// SetRotation changes the rotation of the LED matrix
func (d *Device) SetRotation(rotation uint8) {
d.rotation = rotation % 4
@@ -94,54 +41,3 @@ func (d *Device) GetPixel(x int16, y int16) bool {
}
return d.buffer[matrixRotations[d.rotation][x][y][0]][matrixRotations[d.rotation][x][y][1]]
}
// Display sends the buffer (if any) to the screen.
func (d *Device) Display() error {
for row := 0; row < 3; row++ {
d.DisableAll()
d.pin[9+row].High()
for col := 0; col < 9; col++ {
if d.buffer[row][col] {
d.pin[col].Low()
}
}
time.Sleep(time.Millisecond * 2)
}
return nil
}
// ClearDisplay erases the internal buffer
func (d *Device) ClearDisplay() {
for row := 0; row < 3; row++ {
for col := 0; col < 9; col++ {
d.buffer[row][col] = false
}
}
}
// DisableAll disables all the LEDs without modifying the buffer
func (d *Device) DisableAll() {
for i := machine.LED_COL_1; i <= machine.LED_COL_9; i++ {
d.pin[i-machine.LED_COL_1].High()
}
for i := machine.LED_ROW_1; i <= machine.LED_ROW_3; i++ {
d.pin[i-machine.LED_COL_1].Low()
}
}
// EnableAll enables all the LEDs without modifying the buffer
func (d *Device) EnableAll() {
for i := machine.LED_COL_1; i <= machine.LED_COL_9; i++ {
d.pin[i-machine.LED_COL_1].Low()
}
for i := machine.LED_ROW_1; i <= machine.LED_ROW_3; i++ {
d.pin[i-machine.LED_COL_1].High()
}
}
// Size returns the current size of the display.
func (d *Device) Size() (w, h int16) {
return 5, 5
}