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Merge "[ion] Migrate to ST7789V LCD controller"

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This commit is contained in:
Émilie Feral
2017-01-25 15:44:40 +01:00
committed by Gerrit
parent bf33ea1cd4 bc38971b86
commit 46cb5ff449
2 changed files with 13 additions and 42 deletions
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38
ion/src/device/display.cpp
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@@ -5,6 +5,12 @@ extern "C" {
#include <assert.h>
}
/* This driver interfaces with the ST7789V LCD controller.
* This chip keeps a whole frame in SRAM memory and feeds it to the LCD panel as
* needed. We use the STM32's FSMC to drive the bus between the ST7789V. Once
* configured, we only need to write in the address space of the MCU to actually
* send some data to the LCD controller. */
// Public Ion::Display methods
namespace Ion {
@@ -128,35 +134,17 @@ void initFSMC() {
void initPanel() {
*CommandAddress = Command::Reset; //software reset
*CommandAddress = Command::Reset;
msleep(5);
*CommandAddress = Command::SleepOut;
msleep(5);
SEND_COMMAND(PowerControlB, 0x00, 0x83, 0x30);
SEND_COMMAND(PowerOnSequenceControl, 0x64, 0x03, 0x12, 0x81);
SEND_COMMAND(DriverTimingControlA, 0x85, 0x01, 0x79);
SEND_COMMAND(PowerControlA, 0x39, 0x2C, 0x00, 0x34, 0x02);
SEND_COMMAND(PumpRatioControl, 0x20);
SEND_COMMAND(DriverTimingControlB, 0x00, 0x00);
SEND_COMMAND(PowerControl2, 0x11);
SEND_COMMAND(VCOMControl1, 0x34, 0x3D);
SEND_COMMAND(VCOMControl2, 0xC0);
SEND_COMMAND(MemoryAccessControl, 0xA8);
SEND_COMMAND(PixelFormatSet, 0x55);
SEND_COMMAND(FrameRateControl, 0x00, 0x1D);
SEND_COMMAND(DisplayFunctionControl, 0x0A, 0xA2, 0x27, 0x00);
SEND_COMMAND(EntryMode, 0x07);
SEND_COMMAND(Enable3G, 0x08);
SEND_COMMAND(GammaSet, 0x01);
SEND_COMMAND(PositiveGammaCorrection, 0x1f, 0x1a, 0x18, 0x0a, 0x0f, 0x06, 0x45, 0x87, 0x32, 0x0a, 0x07, 0x02, 0x07, 0x05, 0x00);
SEND_COMMAND(NegativeGammaCorrection, 0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3a, 0x78, 0x4d, 0x05, 0x18, 0x0d, 0x38, 0x3a, 0x1f);
SEND_COMMAND(InterfaceControl, 0x01, 0x00, 0x20); // Data is sent little-endian
//*CommandAddress = Command::SleepOut; //Exit Sleep
//msleep(120);
*CommandAddress = Command::DisplayOn; //Display on
SEND_COMMAND(PixelFormatSet, 0x05);
SEND_COMMAND(MemoryAccessControl, 0xA0);
*CommandAddress = Command::DisplayOn;
//msleep(50);
}
@@ -207,7 +195,7 @@ void pullPixels(KDColor * pixels, size_t numberOfPixels) {
if (numberOfPixels == 0) {
return;
}
SEND_COMMAND(PixelFormatSet, 0x66);
SEND_COMMAND(PixelFormatSet, 0x06);
*CommandAddress = Command::MemoryRead;
uint16_t dummy = *DataAddress; // First read is dummy data, per datasheet
while (true) {
@@ -228,7 +216,7 @@ void pullPixels(KDColor * pixels, size_t numberOfPixels) {
*pixels++ = KDColor::RGB16(secondPixel);
numberOfPixels--;
}
SEND_COMMAND(PixelFormatSet, 0x55);
SEND_COMMAND(PixelFormatSet, 0x05);
}
}

17
ion/src/device/display.h
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@@ -57,28 +57,11 @@ enum class Command : uint16_t {
DisplayOff = 0x28,
DisplayOn = 0x29,
ColumnAddressSet = 0x2A,
GammaSet = 0x26,
PageAddressSet = 0x2B,
MemoryWrite = 0x2C,
MemoryRead = 0x2E,
MemoryAccessControl = 0x36,
PixelFormatSet = 0x3A,
FrameRateControl = 0xB1,
DisplayFunctionControl = 0xB6,
EntryMode = 0xB7,
PowerControl2 = 0xC1,
VCOMControl1 = 0xC5,
VCOMControl2 = 0xC7,
PowerControlA = 0xCB,
PowerControlB = 0xCF,
PositiveGammaCorrection = 0xE0,
NegativeGammaCorrection = 0xE1,
DriverTimingControlA = 0xE8,
DriverTimingControlB = 0xEA,
PowerOnSequenceControl = 0xED,
Enable3G = 0xF2,
InterfaceControl = 0xF6,
PumpRatioControl = 0xF7,
};
constexpr static int FSMCMemoryBank = 1;