-
Notifications
You must be signed in to change notification settings - Fork 2
/
driver.go
48 lines (41 loc) · 1.07 KB
/
driver.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
// Copyright 2022 The Embedded Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ssd1351
import (
"github.com/embeddedgo/display/pix/driver/tftdrv"
"github.com/embeddedgo/display/pix/driver/tftdrv/internal/epson"
)
func New(dci tftdrv.DCI) *tftdrv.Driver {
return tftdrv.New(dci, 128, 128, tftdrv.W16|tftdrv.W18L, ctrl)
}
var (
ctrl = &tftdrv.Ctrl{
StartWrite: epson.StartWrite8,
SetPF: setPF,
SetDir: setDir,
}
)
func setPF(dci tftdrv.DCI, reg *tftdrv.Reg, pixSize int) {
rmcd := reg.PF[0] &^ RGB18
if pixSize == 3 {
rmcd |= RGB18
}
if reg.PF[0] != rmcd {
reg.PF[0] = rmcd
reg.Xarg[0] = RMCD
dci.Cmd(reg.Xarg[:1], tftdrv.Write)
dci.WriteBytes(reg.PF[:])
}
}
func setDir(dci tftdrv.DCI, reg *tftdrv.Reg, dir int) {
rmcd := reg.Dir[0]
if dir&2 != 0 { // SSD1351 in hardware supports only 180 deg rotation
rmcd ^= (C127_SEG0 | COMn_COM0)
}
reg.PF[0] = rmcd
reg.Xarg[0] = RMCD
dci.Cmd(reg.Xarg[:1], tftdrv.Write)
dci.WriteBytes(reg.PF[:])
dci.End()
}