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Improve print state machine, add print API

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This commit is contained in:
fruchti 2018-08-04 08:54:25 +02:00
parent 17962b29ce
commit 064cdc5ba0
4 changed files with 85 additions and 57 deletions
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116
src/ltp1245.c
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@ -1,8 +1,7 @@
#include "ltp1245.h"
#include "pinning.h"
#define LINEWIDTH (64 * 6)
uint8_t LTP1245_Buffer[LINEWIDTH / 8 * LTP1245_BUFFER_LINES];
uint8_t LTP1245_Buffer[LTP1245_LINEWIDTH / 8 * LTP1245_BUFFER_LINES];
typedef struct State_t
{
@ -12,9 +11,15 @@ typedef struct State_t
static volatile int Stepper_Delta = 0;
static int PrintLines;
static int CurrentBufferLine;
bool Printing = false;
static volatile int PulseWidth = 2000;
// Main State machine states
static State_t State_Idle(void);
static State_t State_PaperLoad(void);
static State_t State_Printing(void);
static State_t State_PaperFeed(void);
static volatile State_t State = {State_Idle};
static void InitStepper(void)
{
RCC->APB2ENR |= RCC_APB2ENR_IOPAEN;
@ -169,18 +174,10 @@ static void SendLine(uint8_t *line)
while(DMA1_Channel5->CNDTR);
DMA1_Channel5->CCR &= ~DMA_CCR_EN;
DMA1_Channel5->CMAR = (uint32_t)line;
DMA1_Channel5->CNDTR = LINEWIDTH / 8;
DMA1_Channel5->CNDTR = LTP1245_LINEWIDTH / 8;
DMA1_Channel5->CCR |= DMA_CCR_EN;
}
// Main state machine states
static State_t State_Idle(void);
static State_t State_PaperLoad(void);
static State_t State_InitialPaperFeed(void);
static State_t State_Printing(void);
static State_t State_FinalPaperFeed(void);
// Automatic paper loading
static State_t State_PaperLoad(void)
{
@ -205,22 +202,11 @@ static State_t State_PaperLoad(void)
return (State_t){State_PaperLoad};
}
// Paper feed before printing
static State_t State_InitialPaperFeed(void)
{
if(Stepper_Delta == 0)
{
return (State_t){State_Printing};
}
return (State_t){State_InitialPaperFeed};
}
// Actual printing
static State_t State_Printing(void)
{
if(!HeadDown() || !HasPaper())
{
Printing = false;
return (State_t){State_Idle};
}
@ -230,13 +216,9 @@ static State_t State_Printing(void)
}
else if(Stepper_Delta == 0)
{
SendLine(LTP1245_Buffer + CurrentBufferLine * LINEWIDTH / 8);
SendLine(LTP1245_Buffer + CurrentBufferLine * LTP1245_LINEWIDTH / 8);
ActivateHead(3);
CurrentBufferLine++;
if(CurrentBufferLine >= LTP1245_BUFFER_LINES)
{
CurrentBufferLine = 0;
}
PrintLines--;
@ -246,27 +228,26 @@ static State_t State_Printing(void)
}
else
{
Stepper_Delta = 500;
return (State_t){State_FinalPaperFeed};
// Print done
Stepper_Delta = 1;
return (State_t){State_Idle};
}
}
return (State_t){State_Printing};
}
// Paper feed after printing
static State_t State_FinalPaperFeed(void)
static State_t State_PaperFeed(void)
{
if(!HasPaper() || !HeadDown())
if(!HasPaper())
{
Printing = false;
return (State_t){State_Idle};
}
if(Stepper_Delta == 0)
{
Printing = false;
return (State_t){State_Idle};
}
return (State_t){State_FinalPaperFeed};
return (State_t){State_PaperFeed};
}
static State_t State_Idle(void)
@ -275,19 +256,54 @@ static State_t State_Idle(void)
{
return (State_t){State_PaperLoad};
}
if(Printing)
{
Stepper_Delta = 200;
return (State_t){State_InitialPaperFeed};
}
return (State_t){State_Idle};
}
void LTP1245_Print(void)
LTP1245_Result_t LTP1245_Print(uint8_t *data, int lines)
{
PrintLines = LTP1245_BUFFER_LINES * 5;
do
{
if(!HasPaper())
{
return LTP1245_NO_PAPER;
}
if(!HeadDown())
{
return LTP1245_HEAD_UP;
}
} while(State.fn != State_Idle);
if(lines > LTP1245_BUFFER_LINES)
{
lines = LTP1245_BUFFER_LINES;
}
memcpy(LTP1245_Buffer, data, lines * LTP1245_LINEWIDTH / 8);
PrintLines = lines;
CurrentBufferLine = 0;
Printing = true;
State = (State_t){State_Printing};
return LTP1245_OK;
}
LTP1245_Result_t LTP1245_FeedPaper(int lines)
{
do
{
if(!HasPaper())
{
return LTP1245_NO_PAPER;
}
if(!HeadDown())
{
return LTP1245_HEAD_UP;
}
} while(State.fn != State_Idle);
Stepper_Delta = lines;
State = (State_t){State_PaperFeed};
return LTP1245_OK;
}
void LTP1245_Init(void)
@ -296,21 +312,11 @@ void LTP1245_Init(void)
InitSensors();
InitStepper();
InitThermistor();
for(int i = 0; i < sizeof(LTP1245_Buffer); i++)
{
int shift = (i * 8 / (64 * 6)) % 8;
LTP1245_Buffer[i] =(0x11 << shift) | (0x11 >> (8 - shift));
}
LTP1245_Print();
}
void AdvanceStateMachine(void)
{
static State_t state = {State_Idle};
state = state.fn();
State = State.fn();
}
void TIM3_IRQHandler(void)