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doorlockd-mirror/doorlockd/epaper/Display_Hardware_Driver.c

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2015-05-11 00:18:22 +02:00
// Copyright 2013 Pervasive Displays, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
// express or implied. See the License for the specific language
// governing permissions and limitations under the License.
/******************************************************************************
* Includes
*****************************************************************************/
#include "Display_Hardware_Driver.h"
/******************************************************************************
* Public functions
*****************************************************************************/
void epd_cs_high(void)
{
// CS_SET_HIGH;
bsp_pinOut(BSP_PIN_6, 1);
}
void epd_cs_low(void)
{
// CS_SET_LOW;
bsp_pinOut(BSP_PIN_6, 0);
}
void epd_rst_high(void)
{
// RST_SET_HIGH;
bsp_pinOut(BSP_PIN_12, 1);
}
void epd_rst_low(void)
{
// RST_SET_LOW;
bsp_pinOut(BSP_PIN_12, 0);
}
void epd_discharge_high(void)
{
// DISCHARGE_SET_HIGH;
bsp_pinOut(BSP_PIN_14, 1);
}
void epd_discharge_low(void)
{
// DISCHARGE_SET_LOW;
bsp_pinOut(BSP_PIN_14, 0);
}
void epd_panelon_off(void)
{
// PANELON_SET_LOW;
bsp_pinOut(BSP_PIN_13, 0);
}
void epd_panelon_on(void)
{
// PANELON_SET_HIGH;
bsp_pinOut(BSP_PIN_13, 1);
}
void epd_border_high(void)
{
// BORDER_SET_HIGH;
}
void epd_border_low(void)
{
// BORDER_SET_LOW;
}
void epd_delay_ms(uint32_t Time)
{
bsp_delayMs(Time);
}
int16_t epd_get_temperature(void)
{
return bsp_getTemp();
}
uint32_t epd_GetCurrentTimeTick(void)
{
return bsp_getMsTicks();
}
//******************************************************************
//PWM Configuration/Control
//******************************************************************
#if 0
volatile uint32_t period = 500; //96Khz PWM frequency
void epd_pwm_disable(void)
{
disable_timer16(1);
LPC_IOCON->PIO1_9 &= 0xFC;//Disable PWM,set general IO
PWM_DIR_OUT();
PWM_SET_LOW();
}
void epd_pwm_active(void)
{
PWM_SET_HIGH();
/* Initialize the PWM in timer32_1 enabling match0 output */
init_timer16PWM(1, period, MATCH0,0);
setMatch_timer16PWM (1, 1, period/8);
enable_timer16(1);
}
#endif
void epd_pwm_active(uint16_t delayInMs)
{
uint16_t numOfIterations;
numOfIterations = delayInMs * 100;
// PWM_DIR_OUT;
bsp_pinMode(BSP_PIN_11, BSP_PINMODE_OUTPUT);
for(; numOfIterations > 0; numOfIterations--)
{
// PWM_SET_HIGH;
bsp_pinOut(BSP_PIN_11, 1);
bsp_delayUs(5); //100kHz (96kHz ideal)
// PWM_SET_LOW;
bsp_pinOut(BSP_PIN_11, 0);
bsp_delayUs(5);
}
}
//******************************************************************
//SPI Configuration
//******************************************************************
void epd_spi_detach(void)
{
#if 0
LPC_IOCON->PIO0_8 &= 0xFC;; /* SSP I/O config */
SPIMISO_DIR_OUT();
SPIMISO_Set(Low);
LPC_IOCON->PIO0_9 &= 0xFC; /* SSP MOSI */
SPIMOSI_DIR_OUT();
SPIMOSI_Set(Low);
LPC_IOCON->PIO2_11 &= 0xFC;
SPICLK_DIR_OUT();
SPICLK_Set(Low);
#endif
}
void epd_spi_init (void)
{
bsp_spiInit();
//SSP_IOConfig( SSP_PORT ); /* initialize SSP port */
//SSP_Init( SSP_PORT );
}
void epd_SPI_Send (unsigned char Register, unsigned char *Data, unsigned Length)
{
uint8_t buf[2];
epd_cs_low();
buf[0] = 0x70;
buf[1] = Register;
bsp_writeToDisplay(buf, 2);
epd_cs_high();
bsp_delayUs(10);
epd_cs_low();
buf[0] = 0x72;
bsp_writeToDisplay(buf, 1);
bsp_writeToDisplay(Data, Length);
epd_cs_high();
bsp_delayUs(10);
}
void epd_SPI_Send_Byte (uint8_t Register, uint8_t Data)
{
uint8_t buf[2];
epd_cs_low();
buf[0] = 0x70;
buf[1] = Register;
bsp_writeToDisplay(buf, 2);
epd_cs_high();
bsp_delayUs(10);
epd_cs_low();
buf[0] = 0x72;
buf[1] = Data;
bsp_writeToDisplay(buf, 2);
epd_cs_high();
bsp_delayUs(10);
}
void epd_InitDisplayHardware(void)
{
// RST_DIR_OUT;
bsp_pinMode(BSP_PIN_12, BSP_PINMODE_OUTPUT);
// DISCHARGE_DIR_OUT;
bsp_pinMode(BSP_PIN_14, BSP_PINMODE_OUTPUT);
// CS_DIR_OUT;
bsp_pinMode(BSP_PIN_6, BSP_PINMODE_OUTPUT);
// PANELON_DIR_OUT;
bsp_pinMode(BSP_PIN_13, BSP_PINMODE_OUTPUT);
// DRIVERBUSY_DIR_IN;
bsp_pinMode(BSP_PIN_7, BSP_PINMODE_INPUT);
// BORDER_DIR_OUT;
epd_panelon_off();
epd_spi_init();
epd_cs_low();
// epd_pwm_low();
epd_pwm_active(0); //set output low
epd_rst_low();
epd_discharge_low();
// TESTPin_DIR_OUT();
// TESTPin2_DIR_OUT();
}
//************************************************************************
void TestPinLow(void)
{
// TESTPin_Set(0);
}
void TestPinHigh(void)
{
// TESTPin_Set(1);
}
void TestPinTrigger(void)
{
// if(TESTPin_Get())TestPinLow();
// else TestPinHigh();
}
void TestPin2Low(void)
{
// TESTPin2_Set(0);
}
void TestPin2High(void)
{
// TESTPin2_Set(1);
}
void TestPin2Trigger(void)
{
// if(TESTPin2_Get())TestPin2Low();
// else TestPin2High();
}