uGFX
/
ugfx
2
0
Fork 0
Code Issues 2 Pull Requests Projects Releases Wiki Activity

Convert SSD1306 driver to new driver format. 

This driver requires the new flush operation.
ugfx_release_2.6
inmarket 2013-10-21 17:12:48 +10:00
parent 1b3297aeae
commit f4b9f0bcfe
9 changed files with 513 additions and 930 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

121
drivers/gdisp/SSD1306/board_SSD1306_i2c.h 100644
View File

@ -0,0 +1,121 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file drivers/gdisp/SSD1306/board_SSD1306_i2c.h
* @brief GDISP Graphic Driver subsystem board interface for the SSD1306 display.
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#define GDISP_BUS_MAX_TRANSFER_SIZE 64
// For a multiple display configuration we would put all this in a structure and then
// set g->board to that structure.
#define SSD1306_RESET_PORT GPIOB
#define SSD1306_RESET_PIN 5
/**
* The default slave address is 0x3D, (talking about
* only the real address part here) and the slave
* address can be changed to 0x3C by soldering the
* SA0 pads on the bottom side of the module.
*
* b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0
* --------------------------------------
* 0 | 1 | 1 | 1 | 1 | 0 |SA0 | R/W
*/
#define SSD1306_I2C_ADDRESS 0x3D
#define SSD1306_SDA_PORT GPIOB
#define SSD1306_SDA_PIN 7
#define SSD1306_SCL_PORT GPIOB
#define SSD1306_SCL_PIN 6
#define SET_RST palSetPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN);
#define CLR_RST palClearPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN);
// I2C configuration structure.
static I2CConfig i2cconfig;
static inline void init_board(GDisplay *g) {
// As we are not using multiple displays we set g->board to NULL as we don't use it.
g->board = 0;
switch(g->controllerdisplay) {
case 0: // Set up for Display 0
// RESET pin.
palSetPadMode(SSD1306_RESET_PORT, SSD1306_RESET_PIN, PAL_MODE_OUTPUT_PUSHPULL);
/*
* Initializes the I2C driver 1. The I2C1 signals are routed as follows:
* PB6 - SCL.
* PB7 - SDA.
* Timing value comes from ST I2C config tool (xls):
* 0x00901D2B; // 100kHz Standard Mode
* 0x00300444; // 100kHz Fast Mode
* 0x0030020A; // 400kHz Fast Mode
* 0x00100002; // 800kHz Fast Mode +
*/
i2cconfig.timingr = 0x00100002; // 800kHz Fast Mode+
i2cInit();
palSetPadMode(SSD1306_SCL_PORT, SSD1306_SCL_PIN, PAL_MODE_ALTERNATE(1));
palSetPadMode(SSD1306_SDA_PORT, SSD1306_SDA_PIN, PAL_MODE_ALTERNATE(1));
break;
}
}
static inline void post_init_board(GDisplay *g) {
(void) g;
}
static inline void setpin_reset(GDisplay *g, bool_t state) {
(void) g;
if(state)
CLR_RST
else
SET_RST
}
static inline void acquire_bus(GDisplay *g) {
(void) g;
i2cAcquireBus(&I2CD1);
}
static inline void release_bus(GDisplay *g) {
(void) g;
i2cReleaseBus(&I2CD1);
}
static inline void write_cmd(GDisplay *g, uint8_t cmd) {
uint8_t command[2];
(void) g;
command[0] = 0x00; // Co = 0, D/C = 0
command[1] = cmd;
i2cStart(&I2CD1, &i2cconfig);
i2cMasterTransmitTimeout(&I2CD1, SSD1306_I2C_ADDRESS, command, 2, NULL, 0, MS2ST(10));
i2cStop(&I2CD1);
}
static inline void write_data(GDisplay *g, uint8_t* data, uint16_t length) {
uint8_t command[1];
(void) g;
command[0] = 0x40; // Co = 0, D/C = 1
i2cStart(&I2CD1, &i2cconfig);
i2cMasterTransmitTimeout(&I2CD1, SSD1306_I2C_ADDRESS, command, 1, NULL, 0, MS2ST(10));
i2cMasterTransmitTimeout(&I2CD1, SSD1306_I2C_ADDRESS, command, data, NULL, length, MS2ST(10));
i2cStop(&I2CD1);
}
#endif /* _GDISP_LLD_BOARD_H */

122
drivers/gdisp/SSD1306/board_SSD1306_spi.h 100644
View File

@ -0,0 +1,122 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file drivers/gdisp/SSD1306/board_SSD1306_spi.h
* @brief GDISP Graphic Driver subsystem board interface for the SSD1306 display.
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#define GDISP_BUS_MAX_TRANSFER_SIZE 64
// For a multiple display configuration we would put all this in a structure and then
// set g->board to that structure.
#define SSD1306_RESET_PORT GPIOB
#define SSD1306_RESET_PIN 5
#define SSD1306_MISO_PORT GPIOB
#define SSD1306_MISO_PIN 8
#define SSD1306_MOSI_PORT GPIOB
#define SSD1306_MOSI_PIN 7
#define SSD1306_SCK_PORT GPIOB
#define SSD1306_SCK_PIN 6
#define SSD1306_CS_PORT GPIOB
#define SSD1306_CS_PIN 5
#define SET_RST palSetPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN);
#define CLR_RST palClearPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN);
/*
* SPI1 configuration structure.
* Speed 42MHz, CPHA=0, CPOL=0, 8bits frames, MSb transmitted first.
* The slave select line is the pin 4 on the port GPIOA.
*/
static const SPIConfig spi1config = {
NULL,
/* HW dependent part.*/
SSD1306_MISO_PORT,
SSD1306_MISO_PIN,
0
//SPI_CR1_BR_0
};
static inline void init_board(GDisplay *g) {
// As we are not using multiple displays we set g->board to NULL as we don't use it.
g->board = 0;
switch(g->controllerdisplay) {
case 0: // Set up for Display 0
// RESET pin.
palSetPadMode(SSD1306_RESET_PORT, SSD1306_RESET_PIN, PAL_MODE_OUTPUT_PUSHPULL);
spiInit();
palSetPadMode(SSD1306_MISO_PORT, SSD1306_MISO_PIN, PAL_MODE_ALTERNATE(1)|
PAL_STM32_OSPEED_HIGHEST);
palSetPadMode(SSD1306_MOSI_PORT, SSD1306_MOSI_PIN, PAL_MODE_ALTERNATE(1)|
PAL_STM32_OSPEED_HIGHEST);
palSetPadMode(SSD1306_SCK_PORT, SSD1306_SCK_PIN, PAL_MODE_ALTERNATE(1)|
PAL_STM32_OSPEED_HIGHEST);
palSetPad(SSD1306_CS_PORT, SSD1306_CS_PIN);
palSetPadMode(SSD1306_CS_PORT, SSD1306_CS_PIN, PAL_MODE_ALTERNATE(1)|
PAL_STM32_OSPEED_HIGHEST);
break;
}
}
static inline void post_init_board(GDisplay *g) {
(void) g;
}
static inline void setpin_reset(GDisplay *g, bool_t state) {
(void) g;
if(state)
CLR_RST
else
SET_RST
}
static inline void acquire_bus(GDisplay *g) {
(void) g;
spiAcquireBus(&SPID1);
}
static inline void release_bus(GDisplay *g) {
(void) g;
spiReleaseBus(&SPID1);
}
static inline void write_cmd(GDisplay *g, uint8_t cmd) {
uint8_t command[2];
command[0] = 0x00; // Co = 0, D/C = 0
command[1] = cmd;
spiStart(&SPID1, &spi1config);
spiSelect(&SPID1);
spiStartSend(&SPID1, 2, command);
spiUnselect(&SPID1);
spiStop(&SPID1);
}
static inline void write_data(GDisplay *g, uint8_t* data, uint16_t length) {
uint8_t command[1];
(void) g;
command[0] = 0x40; // Co = 0, D/C = 1
spiStart(&SPID1, &spi1config);
spiSelect(&SPID1);
spiStartSend(&SPID1, 1, command);
spiStartSend(&SPID1, length, data);
spiUnselect(&SPID1);
spiStop(&SPID1);
}
#endif /* _GDISP_LLD_BOARD_H */

116
drivers/gdisp/SSD1306/board_SSD1306_template.h 100644
View File

@ -0,0 +1,116 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file drivers/gdisp/SSD1306/board_SSD1306_template.h
* @brief GDISP Graphic Driver subsystem board interface for the SSD1306 display.
*
* @addtogroup GDISP
* @{
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
/**
* @brief How many bytes to write in one operation when updating the display.
* @note The screen size (in bytes) must evenly divide by this number.
*
* @notapi
*/
#define GDISP_BUS_MAX_TRANSFER_SIZE 64
/**
* @brief Initialise the board for the display.
*
* @param[in] g The GDisplay structure
*
* @note Set the g->board member to whatever is appropriate. For multiple
* displays this might be a pointer to the appropriate register set.
*
* @notapi
*/
static inline void init_board(GDisplay *g) {
(void) g;
}
/**
* @brief After the initialisation.
*
* @param[in] g The GDisplay structure
*
* @notapi
*/
static inline void post_init_board(GDisplay *g) {
(void) g;
}
/**
* @brief Set or clear the lcd reset pin.
*
* @param[in] g The GDisplay structure
* @param[in] state TRUE = lcd in reset, FALSE = normal operation
*
* @notapi
*/
static inline void setpin_reset(GDisplay *g, bool_t state) {
(void) g;
(void) state;
}
/**
* @brief Take exclusive control of the bus
*
* @param[in] g The GDisplay structure
*
* @notapi
*/
static inline void acquire_bus(GDisplay *g) {
(void) g;
}
/**
* @brief Release exclusive control of the bus
*
* @param[in] g The GDisplay structure
*
* @notapi
*/
static inline void release_bus(GDisplay *g) {
(void) g;
}
/**
* @brief Send a command to the controller.
*
* @param[in] g The GDisplay structure
* @param[in] cmd The command to send *
*
* @notapi
*/
static inline void write_cmd(GDisplay *g, uint8_t cmd) {
(void) g;
(void) cmd;
}
/**
* @brief Send data to the lcd.
*
* @param[in] g The GDisplay structure
* @param[in] data The data to send
*
* @notapi
*/
static inline void write_data(GDisplay *g, uint8_t* data, uint16_t length) {
(void) g;
(void) data;
(void) length;
}
#endif /* _GDISP_LLD_BOARD_H */
/** @} */

715
drivers/gdisp/SSD1306/gdisp_lld.c
View File

@ -5,642 +5,219 @@
* http://ugfx.org/license.html
*/
#include "gfx.h"
/**
* @file drivers/gdisp/SSD1306/gdisp_lld.c
* @brief GDISP Graphics Driver subsystem low level driver source for the SSD1306 display.
*/
#include "SSD1306.h"
#include "gfx.h"
#if GFX_USE_GDISP || defined(__DOXYGEN__)
/* Include the emulation code for things we don't support */
#include "gdisp/lld/emulation.c"
#define GDISP_DRIVER_VMT GDISPVMT_SSD1306
#include "../drivers/gdisp/SSD1306/gdisp_lld_config.h"
#include "gdisp/lld/gdisp_lld.h"
#include "board_SSD1306.h"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#ifndef GDISP_SCREEN_HEIGHT
#define GDISP_SCREEN_HEIGHT 64
#define GDISP_SCREEN_HEIGHT 64 // This controller should support 32 (untested) or 64
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 128
#endif
#ifndef GDISP_INITIAL_CONTRAST
#define GDISP_INITIAL_CONTRAST 100
#endif
#ifndef GDISP_INITIAL_BACKLIGHT
#define GDISP_INITIAL_BACKLIGHT 100
#endif
#define GDISP_INITIAL_CONTRAST 0xFF
#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER<<0)
#include "SSD1306.h"
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
// Include wiring specific header
#include "gdisp_lld_board_example_i2c.h"
// Some common routines and macros
#define RAM(g) ((uint8_t *)g->priv)
#define write_cmd2(g, cmd1, cmd2) { write_cmd(g, cmd1); write_cmd(g, cmd2); }
#define write_cmd3(g, cmd1, cmd2, cmd3) { write_cmd(g, cmd1); write_cmd(g, cmd2); write_cmd(g, cmd3); }
// Some common routines and macros
#define delay(us) gfxSleepMicroseconds(us)
#define delayms(ms) gfxSleepMilliseconds(ms)
// The memory buffer for the display
static uint8_t gdisp_buffer[GDISP_SCREEN_HEIGHT * GDISP_SCREEN_WIDTH / 8];
/** Set the display to normal or inverse.
* @param[in] value 0 for normal mode, or 1 for inverse mode.
* @notapi
*/
static void invert_display(uint8_t i) {
write_cmd(i ? SSD1306_INVERTDISPLAY : SSD1306_NORMALDISPLAY);
}
/** Turn the whole display off.
* Sends the display to sleep, but leaves RAM intact.
* @notapi
*/
static void display_off(){
write_cmd(SSD1306_DISPLAYOFF);
}
/** Turn the whole display on.
* Wakes up this display following a sleep() call.
* @notapi
*/
static void display_on() {
write_cmd(SSD1306_DISPLAYON);
}
/** Set the vertical shift by COM.
* @param[in] value The number of rows to shift, from 0 - 63.
* @notapi
*/
static void set_display_offset(unsigned char value) {
write_cmd(SSD1306_SETDISPLAYOFFSET);
write_cmd(value & 0x3F);
}
/** Set the display contrast.
* @param[in] value The contrast, from 1 to 256.
* @notapi
*/
static void set_contrast(unsigned char value) {
write_cmd(SSD1306_SETCONTRAST);
write_cmd(value);
}
/** Set the display start line. This is the line at which the display will start rendering.
* @param[in] value A value from 0 to 63 denoting the line to start at.
* @notapi
*/
static void set_display_start_line(unsigned char value) {
write_cmd(SSD1306_SETSTARTLINE | value);
}
/** Set the segment remap state. This allows the module to be addressed as if flipped horizontally.
* NOTE: Changing this setting has no effect on data already in the module's GDDRAM.
* @param[in] value 0 = column address 0 = segment 0 (the default), 1 = column address 127 = segment 0 (flipped).
* @notapi
*/
static void set_segment_remap(unsigned char value) {
write_cmd(value ? SSD1306_SEGREMAP+1 : SSD1306_SEGREMAP);
}
/** Set the multiplex ratio.
* @param[in] value MUX will be set to (value+1). Valid values range from 15 to 63 - MUX 16 to 64.
* @notapi
*/
static void set_multiplex_ratio(unsigned char value) {
write_cmd(SSD1306_SETMULTIPLEX);
write_cmd(value & 0x3F);
}
/** Set COM output scan direction. If the display is active, this will immediately vertically
* flip the display.
* @param[in] value 0 = Scan from COM0 (default), 1 = reversed (scan from COM[N-1]).
* @notapi
*/
static void set_com_output_scan_direction(unsigned char value) {
write_cmd(value ? SSD1306_COMSCANDEC : SSD1306_COMSCANINC);
}
static void set_com_pins_hardware_configuration(unsigned char sequential, unsigned char lr_remap) {
write_cmd(SSD1306_SETCOMPINS);
write_cmd(0x02 | ((sequential & 1) << 4) | ((lr_remap & 1) << 5));
}
/** Flip display content horizontally.
* NOTE: This only flips display content, but doesn't turn the char writing around.
* You have to unmirror everything manually.
* @param[in] value 0 = column address 0 = segment 0 (the default), 1 = column address 127 = segment 0 (flipped).
* @notapi
*/
static void flip_display(unsigned char enable) {
if( enable && GDISP.Orientation == GDISP_ROTATE_0) {
set_com_output_scan_direction(0);
set_segment_remap(0);
GDISP.Orientation = GDISP_ROTATE_0;
}
if( !enable && GDISP.Orientation == GDISP_ROTATE_180) {
set_com_output_scan_direction(1);
set_segment_remap(1);
GDISP.Orientation = GDISP_ROTATE_180;
}
else
return;
}
/** Perform a "no operation".
* @notapi
*/
static void nop() {
write_cmd(0xE3);
}
/** Page Addressing Mode: Set the column start address register for
* page addressing mode.
* @param[in] address The address (full byte).
* @notapi
*/
static void set_start_address_pam(unsigned char address)
{
// "Set Lower Column Start Address for Page Addressing Mode"
write_cmd(address & 0x0F);
// "Set Higher Column Start Address for Page Addressing Mode"
write_cmd((address << 4) & 0x0F);
}
/** Set memory addressing mode to the given value.
* @param[in] mode 0 for Horizontal addressing mode,\n 1 for Vertical addressing mode,\n or 2 for Page addressing mode (PAM). 2 is the default.
* @notapi
*/
static void set_memory_addressing_mode(unsigned char mode)
{
write_cmd(SSD1306_MEMORYMODE);
write_cmd(mode & 0x3);
}
/** Set column address range for horizontal/vertical addressing mode.
* @param[in] start Column start address, 0 - 127.
* @param[in] end Column end address, 0 - 127.
* @notapi
*/
static void set_column_address_hvam(unsigned char start, unsigned char end)
{
write_cmd(SSD1306_HV_COLUMN_ADDRESS);
write_cmd(start & 0x7F);
write_cmd(end & 0x7F);
}
/** Set page start and end address for horizontal/vertical addressing mode.
* @param[in] start The start page, 0 - 7.
* @param[in] end The end page, 0 - 7.
* @notapi
*/
static void set_page_address_hvam(unsigned char start, unsigned char end)
{
write_cmd(SSD1306_HV_PAGE_ADDRESS);
write_cmd(start & 0x07);
write_cmd(end & 0x07);
}
/** Set the GDDRAM page start address for page addressing mode.
* @param[in] address The start page, 0 - 7.
* @notapi
*/
static void set_page_start_pam(unsigned char address)
{
write_cmd(SSD1306_PAM_PAGE_START | (address & 0x07));
}
/** Set the display clock divide ratio and the oscillator frequency.
* @param[in] ratio The divide ratio, default is 0.
* @param[in] frequency The oscillator frequency, 0 - 127. Default is 8.
* @notapi
*/
static void set_display_clock_ratio_and_frequency(unsigned char ratio, unsigned char frequency)
{
write_cmd(SSD1306_SETDISPLAYCLOCKDIV);
write_cmd((ratio & 0x0F) | ((frequency & 0x0F) << 4));
}
/** Set the precharge period.
* @param[in] phase1 Phase 1 period in DCLK clocks. 1 - 15, default is 2.
* @param[in] phase2 Phase 2 period in DCLK clocks. 1 - 15, default is 2.
* @notapi
*/
static void set_precharge_period(unsigned char phase1, unsigned char phase2)
{
write_cmd(SSD1306_SETPRECHARGE);
write_cmd((phase1 & 0x0F) | ((phase2 & 0x0F ) << 4));
}
/** Set the Vcomh deselect level.
* @param[in] level @p 0 = 0.65 x Vcc, @p 1 = 0.77 x Vcc (default), @p 2 = 0.83 x Vcc.
* @notapi
*/
static void set_vcomh_deselect_level(unsigned char level)
{
write_cmd(SSD1306_SETVCOMDETECT);
write_cmd((level & 0x03) << 4);
}
/** Enable/disable charge pump.
* @param[in] enable 0 to disable, 1 to enable the internal charge pump.
* @notapi
*/
static void set_charge_pump(unsigned char enable)
{
write_cmd(SSD1306_ENABLE_CHARGE_PUMP);
write_cmd(enable ? 0x14 : 0x10);
}
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/* ---- Required Routines ---- */
/*
The following 2 routines are required.
All other routines are optional.
*/
/**
* @brief Low level GDISP driver initialization.
*
* @notapi
* As this controller can't update on a pixel boundary we need to maintain the
* the entire display surface in memory so that we can do the necessary bit
* operations. Fortunately it is a small display in monochrome.
* 64 * 128 / 8 = 1024 bytes.
*/
bool_t gdisp_lld_init(void) {
// Initialize your display
init_board();
// Hardware reset.
setpin_reset(TRUE);
delayms(1);
setpin_reset(FALSE);
delayms(10);
setpin_reset(TRUE);
LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
// The private area is the display surface.
g->priv = gfxAlloc(GDISP_SCREEN_HEIGHT * GDISP_SCREEN_WIDTH / 8);
// Get the bus for the following initialization commands.
acquire_bus();
// Initialise the board interface
init_board(g);
display_off();
set_display_clock_ratio_and_frequency(0, 8);
// Hardware reset
setpin_reset(g, TRUE);
gfxSleepMilliseconds(20);
setpin_reset(g, FALSE);
gfxSleepMilliseconds(20);
acquire_bus(g);
write_cmd(g, SSD1306_DISPLAYOFF);
write_cmd2(g, SSD1306_SETDISPLAYCLOCKDIV, 0x80);
write_cmd2(g, SSD1306_SETMULTIPLEX, GDISP_SCREEN_HEIGHT-1);
write_cmd2(g, SSD1306_SETPRECHARGE, 0x1F);
write_cmd2(g, SSD1306_SETDISPLAYOFFSET, 0);
write_cmd(g, SSD1306_SETSTARTLINE | 0);
write_cmd2(g, SSD1306_ENABLE_CHARGE_PUMP, 0x14);
write_cmd2(g, SSD1306_MEMORYMODE, 0);
write_cmd(g, SSD1306_SEGREMAP+1);
write_cmd(g, SSD1306_COMSCANDEC);
#if GDISP_SCREEN_HEIGHT == 64
set_multiplex_ratio(0x3F); // 1/64 duty
write_cmd2(g, SSD1306_SETCOMPINS, 0x12);
#else
write_cmd2(g, SSD1306_SETCOMPINS, 0x22);
#endif
#if GDISP_SCREEN_HEIGHT == 32
set_multiplex_ratio(0x1F); // 1/32 duty
#endif
set_precharge_period(0xF, 0x01); //
set_display_offset(0); //
set_display_start_line(0); //
set_charge_pump(1); // Enable internal charge pump.
set_memory_addressing_mode(0); // horizontal addressing mode; across then down //act like ks0108 (horizontal addressing mode)
set_segment_remap(1); //
set_com_output_scan_direction(1); //
#if GDISP_SCREEN_HEIGHT == 64
set_com_pins_hardware_configuration(1, 0);
#endif
#if GDISP_SCREEN_HEIGHT == 32
set_com_pins_hardware_configuration(0, 1);
#endif
set_contrast(GDISP_INITIAL_CONTRAST); // Set initial contrast.
set_vcomh_deselect_level(1); //
display_on(); // Turn on OLED panel.
invert_display(0); // Disable Inversion of display.
set_column_address_hvam(0, 127); //
set_page_address_hvam(0, 7); //
write_cmd2(g, SSD1306_SETCONTRAST, (uint8_t)(GDISP_INITIAL_CONTRAST*256/101)); // Set initial contrast.
write_cmd2(g, SSD1306_SETVCOMDETECT, 0x10);
write_cmd(g, SSD1306_DISPLAYON);
write_cmd(g, SSD1306_NORMALDISPLAY);
write_cmd3(g, SSD1306_HV_COLUMN_ADDRESS, 0, GDISP_SCREEN_WIDTH-1);
write_cmd3(g, SSD1306_HV_PAGE_ADDRESS, 0, GDISP_SCREEN_HEIGHT/8-1);
release_bus();
// Finish Init
post_init_board(g);
gdisp_lld_display();
// Release the bus
release_bus(g);
// Initialize the GDISP structure
GDISP.Width = GDISP_SCREEN_WIDTH;
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Orientation = GDISP_ROTATE_0;
GDISP.Powermode = powerOn;
GDISP.Contrast = GDISP_INITIAL_CONTRAST;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
/* Initialise the GDISP structure */
g->g.Width = GDISP_SCREEN_WIDTH;
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Orientation = GDISP_ROTATE_0;
g->g.Powermode = powerOn;
g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
g->g.Contrast = GDISP_INITIAL_CONTRAST;
return TRUE;
}
/**
* @brief Draws a pixel on the display.
*
* @param[in] x X location of the pixel
* @param[in] y Y location of the pixel
* @param[in] color The color of the pixel
*
* @notapi
*/
void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color) {
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0 || y < GDISP.clipy0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
#endif
#if GDISP_HARDWARE_FLUSH
LLDSPEC void gdisp_lld_flush(GDisplay *g) {
unsigned i;
if (color == SSD1306_WHITE)
gdisp_buffer[x+ (y/8)*GDISP_SCREEN_WIDTH] |= (1<<y%8);
else
gdisp_buffer[x+ (y/8)*GDISP_SCREEN_WIDTH] &= ~(1<<y%8);
}
// Don't flush if we don't need it.
if (!(g->flags & GDISP_FLG_NEEDFLUSH))
return;
void gdisp_lld_display() {
set_display_start_line(0);
write_cmd(g, SSD1306_SETSTARTLINE | 0);
/* We're sending half a line in one X-mission.*/
uint8_t command[GDISP_SCREEN_WIDTH/2],
cmdLength = sizeof(command)/sizeof(command[0]),
parts = GDISP_SCREEN_WIDTH/cmdLength;
for(int i=0; i<GDISP_SCREEN_HEIGHT/8; i++){
for(int j = 0; j<parts; j++){
memmove(command, &gdisp_buffer[i*GDISP_SCREEN_WIDTH + j*cmdLength], cmdLength);
write_data(command, cmdLength);
}
for(i=0; i < GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT/8; i+=GDISP_BUS_MAX_TRANSFER_SIZE)
write_data(g, RAM(g)+i, GDISP_BUS_MAX_TRANSFER_SIZE);
}
}
#endif
/* ---- Optional Routines ---- */
/*
All the below routines are optional.
Defining them will increase speed but everything
will work if they are not defined.
If you are not using a routine - turn it off using
the appropriate GDISP_HARDWARE_XXXX macro.
Don't bother coding for obvious similar routines if
there is no performance penalty as the emulation software
makes a good job of using similar routines.
eg. If gfillarea() is defined there is little
point in defining clear() unless the
performance bonus is significant.
For good performance it is suggested to implement
fillarea() and blitarea().
*/
#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) || defined(__DOXYGEN__)
/**
* @brief Scroll vertically a section of the screen.
* @note Optional.
* @note If x,y + cx,cy is off the screen, the result is undefined.
* @note If lines is >= cy, it is equivalent to a area fill with bgcolor.
*
* @param[in] x, y The start of the area to be scrolled
* @param[in] cx, cy The size of the area to be scrolled
* @param[in] lines The number of lines to scroll (Can be positive or negative)
* @param[in] bgcolor The color to fill the newly exposed area.
*
* @notapi
*/
void gdisp_lld_vertical_scroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
if (!lines || cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
/* See datasheet table T10-1 for this*/
uint8_t fHeight = (uint8_t)gdispGetFontMetric(gwinGetDefaultFont(), fontLineSpacing);
set_multiplex_ratio(GDISP_SCREEN_HEIGHT - fHeight+1);
set_display_offset(fHeight-2);
/* Scrolling animation.*/
for(int i=0; i<fHeight; i++){
set_display_start_line(i);
gfxSleepMilliseconds(10);
}
/* Shift buffer up a font line.*/
for (int i = 0; i < GDISP_SCREEN_WIDTH*(GDISP_SCREEN_HEIGHT/8-1); i++) {
gdisp_buffer[i] = gdisp_buffer[i+GDISP_SCREEN_WIDTH*(fHeight/8)] >> fHeight % 8;
gdisp_buffer[i] |= gdisp_buffer[i+GDISP_SCREEN_WIDTH*(fHeight/8 + 1)] << (8 - fHeight%8);
}
/* Clear last page.*/
memset( &gdisp_buffer[GDISP_SCREEN_HEIGHT*GDISP_SCREEN_WIDTH/8 - GDISP_SCREEN_WIDTH*2], SSD1306_BLACK, GDISP_SCREEN_WIDTH*2);
/* Update display.*/
gdisp_lld_display();
#if GDISP_HARDWARE_DRAWPIXEL
LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
if (g->p.color != Black)
RAM(g)[g->p.x + (g->p.y>>3)*GDISP_SCREEN_WIDTH] |= (1<<(g->p.y&7));
else
RAM(g)[g->p.x + (g->p.y>>3)*GDISP_SCREEN_WIDTH] &= ~(1<<(g->p.y&7));
g->flags |= GDISP_FLG_NEEDFLUSH;
}
#endif
/**
* @warning Implementation only fully supports left and right...some command issues here.
* Activate a scroll for rows start through stop.
* Hint, the display is 16 rows tall. To scroll the whole display, run:
* @code
* display.scrollright(0x00, 0x0F)
* @endcode
* @param[in] start The start of the area to be scrolled
* @param[in] stop The size of the area to be scrolled
* @param[in] dir direction of scrolling
* [left, right, up, down, up_right, up_left, down_left, down_right]
* @note Optional. *
*
* @notapi
*/
void gdisp_lld_start_scroll(uint8_t dir, uint8_t start, uint8_t stop, uint8_t interval){
// if(dir == GDISP_SCROLL_RIGHT || GDISP_SCROLL_LEFT || GDISP_SCROLL_UP) {
// switch (dir) {
// case GDISP_SCROLL_RIGHT:
// write_cmd(SSD1306_SCROLL_HORIZONTAL_RIGHT);
// break;
// case GDISP_SCROLL_LEFT:
// write_cmd(SSD1306_SCROLL_HORIZONTAL_LEFT);
// break;
// }
// write_cmd(0X00); // Dummy byte.
// write_cmd(start & 0x07); // Define start page address.
// switch (interval) { // Set time interval between each scroll step (5 frames)
// case 2: write_cmd(0x07); break; // 111b
// case 3: write_cmd(0x04); break; // 100b
// case 4: write_cmd(0x05); break; // 101b
// case 5: write_cmd(0x00); break; // 000b
// case 25: write_cmd(0x06); break; // 110b
// case 64: write_cmd(0x01); break; // 001b
// case 128: write_cmd(0x02); break; // 010b
// case 256: write_cmd(0x03); break; // 011b
// default:
// // default to 2 frame interval
// write_cmd(0x07); break;
// }
// write_cmd(stop & 0x07); // Define stop page address
// write_cmd(0X01); // Set vertical scrolling offset as no row.
// write_cmd(0XFF); // Undocumented but needed.
// write_cmd(SSD1306_SCROLL_ACTIVATE);
// }
// else if(dir == GDISP_SCROLL_UP || GDISP_SCROLL_DOWN) {
// switch (dir) {
// case GDISP_SCROLL_UP:
// gdisp_lld_set_vertical_scroll_area(0x00, GDISP_SCREEN_HEIGHT);
// write_cmd(SSD1306_SCROLL_VERTICAL_AND_HORIZONTAL_RIGHT);
// break;
//
// case GDISP_SCROLL_DOWN:
// gdisp_lld_set_vertical_scroll_area(0x00, GDISP_SCREEN_HEIGHT);
// write_cmd(SSD1306_SCROLL_VERTICAL_AND_HORIZONTAL_LEFT);
// break;
// }
// write_cmd(0X00); // Dummy byte.
// write_cmd(start); // Define start page address.
// write_cmd(0X00); // Set time interval between each scroll step (5 frames)
// write_cmd(stop); // Define stop page address
// write_cmd(0X01); // Set vertical scrolling offset as no row.
// write_cmd(SSD1306_SCROLL_ACTIVATE);
// gdisp_lld_set_vertical_scroll_area(0x00, GDISP_SCREEN_HEIGHT-10);
// write_cmd(SSD1306_SCROLL_VERTICAL_AND_HORIZONTAL_RIGHT);
// write_cmd(0X00); // Dummy byte.
// write_cmd(start); // Define start page address.
// write_cmd(0X00); // Set time interval between each scroll step (5 frames)
// write_cmd(stop); // Define stop page address
// write_cmd(0X03); // Set vertical scrolling offset as no row.
// write_cmd(SSD1306_SCROLL_ACTIVATE);
// }
#if GDISP_HARDWARE_PIXELREAD
LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) {
return (RAM(g)[g->p.x + (g->p.y>>3)*GDISP_SCREEN_WIDTH] & (1<<(g->p.y&7))) ? White : Black;
}
#endif
/**
* Sets vertical scroll area of display.
* @param[in] start The start of the area to be scrolled [y coordinate]
* @param[in] stop The size of the area to be scrolled [y coordinate]
* @note Optional. *
*
* @notapi
*/
void gdisp_lld_set_vertical_scroll_area(uint8_t start, uint8_t stop){
write_cmd(SSD1306_SCROLL_SET_VERTICAL_SCROLL_AREA);
write_cmd(start);
write_cmd(stop);
}
/** Deactivate the continuous scroll set up with start_horizontal_scroll() or
* start_vertical_and_horizontal_scroll().
* @see set_horizontal_scroll, set_vertical_and_horizontal_scroll
* @notapi
*/
void gdisp_lld_stop_scroll(void){
write_cmd(SSD1306_SCROLL_DEACTIVATE);
}
#endif // GDISP_NEED_SCROLL
#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
void gdisp_lld_fill_area(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
for(int i=x; i<x+cx; i++) {
for(int j=y; j<y+cy; j++) {
gdisp_lld_draw_pixel(i,j,color);
}
}
}
#endif // GDISP_HARDWARE_FILLS
#if (GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL) || defined(__DOXYGEN__)
/**
* @brief Driver Control
* @details Unsupported control codes are ignored.
* @note The value parameter should always be typecast to (void *).
* @note There are some predefined and some specific to the low level driver.
* @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t
* GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t
* GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
* that only supports off/on anything other
* than zero is on.
* GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
* GDISP_CONTROL_LLD - Low level driver control constants start at
* this value.
*
* @param[in] what What to do.
* @param[in] value The value to use (always cast to a void *).
*
* @notapi
*/
void gdisp_lld_control(unsigned what, void *value) {
switch(what) {
#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
LLDSPEC void gdisp_lld_control(GDisplay *g) {
switch(g->p.x) {
case GDISP_CONTROL_POWER:
if (GDISP.Powermode == (gdisp_powermode_t)value)
if (g->g.Powermode == (powermode_t)g->p.ptr)
return;
switch((gdisp_powermode_t)value) {
switch((powermode_t)g->p.ptr) {
case powerOff:
display_off();
case powerSleep:
display_off();
case powerDeepSleep:
display_off();
acquire_bus(g);
write_cmd(g, SSD1306_DISPLAYOFF);
release_bus(g);
break;
case powerOn:
display_on();
acquire_bus(g);
write_cmd(g, SSD1306_DISPLAYON);
release_bus(g);
default:
return;
}
GDISP.Powermode = (gdisp_powermode_t)value;
g->g.Powermode = (powermode_t)g->p.ptr;
return;
case GDISP_CONTROL_ORIENTATION:
if (GDISP.Orientation == (gdisp_orientation_t)value)
return;
switch((gdisp_orientation_t)value) {
case GDISP_ROTATE_0:
flip_display(0);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_180:
flip_display(1);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
default:
return;
}
#if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
GDISP.Orientation = (gdisp_orientation_t)value;
if (g->g.Orientation == (orientation_t)g->p.ptr)
return;
switch((orientation_t)g->p.ptr) {
case GDISP_ROTATE_0:
acquire_bus(g);
write_cmd(g, SSD1306_COMSCANDEC);
write_cmd(g, SSD1306_SEGREMAP+1);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
release_bus(g);
break;
case GDISP_ROTATE_180:
acquire_bus(g);
write_cmd(g, SSD1306_COMSCANINC);
write_cmd(g, SSD1306_SEGREMAP);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
release_bus(g);
break;
default:
return;
}
g->g.Orientation = (orientation_t)value;
return;
case GDISP_CONTROL_CONTRAST:
if ((unsigned)value > 100)
value = (void *)100;
if (GDISP.Contrast == (uint8_t)((float)((uint8_t)value) * 256.0/100.0) )
return;
set_contrast((uint8_t)((float)((uint8_t)value) * 256.0/100.0) );
GDISP.Contrast = (unsigned)value;
return;
if ((unsigned)g->p.ptr > 100)
g->p.ptr = (void *)100;
acquire_bus(g);
write_cmd2(g, SSD1306_SETCONTRAST, (((uint16_t)value)<<8)/101);
release_bus(g);
g->g.Contrast = (unsigned)g->p.ptr;
return;
// Our own special controller code to inverse the display
// 0 = normal, 1 = inverse
case GDISP_CONTROL_INVERT:
acquire_bus(g);
write_cmd(g, g->p.ptr ? SSD1306_INVERTDISPLAY : SSD1306_NORMALDISPLAY);
release_bus(g);
return;
}
}
#endif // GDISP_NEED_CONTROL
/**
* Let the display blink several times by means of invert and invert back.
* @param num number of blink cycles to do
* @param speed milliseconds to wait between toggling inversion
* @param wait milliseconds to wait before start of all blink cycles and after finishing blink cycles
* @notapi
*/
void gdisp_lld_display_blink(uint8_t num, uint16_t speed, uint16_t wait){
uint8_t inv = 0;
gfxSleepMilliseconds(wait);
for(int i=0; i<2*num; i++) {
inv ^= 1;
invert_display(inv);
gfxSleepMilliseconds(speed);
}
gfxSleepMilliseconds(wait);
}
#endif // GFX_USE_GDISP
/** @} */

5
drivers/gdisp/SSD1306/gdisp_lld.mk
View File

@ -1,5 +1,2 @@
# List the required driver.
GFXSRC += $(GFXLIB)/drivers/gdisp/SSD1306/gdisp_lld.c
# Required include directories
GFXINC += $(GFXLIB)/drivers/gdisp/SSD1306
GFXSRC += $(GFXLIB)/drivers/gdisp/SSD1306/gdisp_lld.c

137
drivers/gdisp/SSD1306/gdisp_lld_board_example_i2c.h
View File

@ -1,137 +0,0 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#define SSD1306_RESET_PORT GPIOB
#define SSD1306_RESET_PIN 5
/**
* The default slave address is 0x3D, (talking about
* only the real address part here) and the slave
* address can be changed to 0x3C by soldering the
* SA0 pads on the bottom side of the module.
*
* b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0
* --------------------------------------
* 0 | 1 | 1 | 1 | 1 | 0 |SA0 | R/W
*/
#define SSD1306_I2C_ADDRESS 0x3D
#define SSD1306_SDA_PORT GPIOB
#define SSD1306_SDA_PIN 7
#define SSD1306_SCL_PORT GPIOB
#define SSD1306_SCL_PIN 6
#define SET_RST palSetPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN);
#define CLR_RST palClearPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN);
int8_t vccstate;
int32_t row_offset = 0;
// I2C configuration structure.
static I2CConfig i2cconfig;
/**
* @brief Initialize the board for the display.
* @notes This board definition uses GPIO and assumes exclusive access to these GPIO pins
* @notapi
*/
static inline void init_board(void) {
// RESET pin.
palSetPadMode(SSD1306_RESET_PORT, SSD1306_RESET_PIN, PAL_MODE_OUTPUT_PUSHPULL);
/*
* Initializes the I2C driver 1. The I2C1 signals are routed as follows:
* PB6 - SCL.
* PB7 - SDA.
* Timing value comes from ST I2C config tool (xls):
* 0x00901D2B; // 100kHz Standard Mode
* 0x00300444; // 100kHz Fast Mode
* 0x0030020A; // 400kHz Fast Mode
* 0x00100002; // 800kHz Fast Mode +
*/
i2cconfig.timingr = 0x00100002; // 800kHz Fast Mode+
i2cInit();
palSetPadMode(SSD1306_SCL_PORT, SSD1306_SCL_PIN, PAL_MODE_ALTERNATE(1));
palSetPadMode(SSD1306_SDA_PORT, SSD1306_SDA_PIN, PAL_MODE_ALTERNATE(1));
vccstate = SSD1306_SWITCHCAPVCC;
}
/**
* @brief Set or clear the lcd reset pin.
* @param[in] state TRUE = lcd in reset, FALSE = normal operation
* @notapi
*/
static inline void setpin_reset(bool_t state) {
if(state)
SET_RST
else
CLR_RST
}
/**
* @brief Set the lcd back-light level.
* @param[in] percent 0 to 100%
* @notapi
*/
static inline void set_backlight(uint8_t percent) {
// Since we are on OLED no backlight needed
}
/**
* @brief Take exclusive control of the bus
* @notapi
*/
static inline void acquire_bus(void) {
i2cAcquireBus(&I2CD1);
}
/**
* @brief Release exclusive control of the bus
* @notapi
*/
static inline void release_bus(void) {
i2cReleaseBus(&I2CD1);
}
/**
* @brief Send command to the display.
* @param[in] cmd The command to send *
* @notapi
*/
static inline void write_cmd(uint8_t cmd) {
uint8_t command[] = { 0x00, // Co = 0, D/C = 0
cmd },
txLength = sizeof(command)/sizeof(command[0]),
rxLength = 0;
i2cStart(&I2CD1, &i2cconfig);
i2cMasterTransmitTimeout(&I2CD1, SSD1306_I2C_ADDRESS, command, txLength, NULL, rxLength, MS2ST(10));
i2cStop(&I2CD1);
}
/**
* @brief Send data to the display.
* @param[in] data The data to send
* @notapi
*/
static inline void write_data(uint8_t* data, uint16_t length) {
uint8_t command[length+1],
txLength = length+1,
rxLength = 0;
command[0] = 0x40; // Co = 0, D/C = 1
memmove(&command[1], data, length);
i2cStart(&I2CD1, &i2cconfig);
i2cMasterTransmitTimeout(&I2CD1, SSD1306_I2C_ADDRESS, command, txLength, NULL, rxLength, MS2ST(10));
i2cStop(&I2CD1);
}
#endif /* _GDISP_LLD_BOARD_H */
/** @} */

139
drivers/gdisp/SSD1306/gdisp_lld_board_example_spi.h
View File

@ -1,139 +0,0 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#define SSD1306_RESET_PORT GPIOB
#define SSD1306_RESET_PIN 5
#define SSD1306_MISO_PORT GPIOB
#define SSD1306_MISO_PIN 8
#define SSD1306_MOSI_PORT GPIOB
#define SSD1306_MOSI_PIN 7
#define SSD1306_SCK_PORT GPIOB
#define SSD1306_SCK_PIN 6
#define SSD1306_CS_PORT GPIOB
#define SSD1306_CS_PIN 5
#define SET_RST palSetPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN);
#define CLR_RST palClearPad(SSD1306_RESET_PORT, SSD1306_RESET_PIN);
int8_t vccstate;
int32_t row_offset = 0;
/*
* SPI1 configuration structure.
* Speed 42MHz, CPHA=0, CPOL=0, 8bits frames, MSb transmitted first.
* The slave select line is the pin 4 on the port GPIOA.
*/
static const SPIConfig spi1config = {
NULL,
/* HW dependent part.*/
SSD1306_MISO_PORT,
SSD1306_MISO_PIN,
0
//SPI_CR1_BR_0
};
/**
* @brief Initialize the board for the display.
* @notes This board definition uses GPIO and assumes exclusive access to these GPIO pins
* @notapi
*/
static inline void init_board(void) {
// RESET pin.
palSetPadMode(SSD1306_RESET_PORT, SSD1306_RESET_PIN, PAL_MODE_OUTPUT_PUSHPULL);
spiInit();
palSetPadMode(SSD1306_MISO_PORT, SSD1306_MISO_PIN, PAL_MODE_ALTERNATE(1)|
PAL_STM32_OSPEED_HIGHEST);
palSetPadMode(SSD1306_MOSI_PORT, SSD1306_MOSI_PIN, PAL_MODE_ALTERNATE(1)|
PAL_STM32_OSPEED_HIGHEST);
palSetPadMode(SSD1306_SCK_PORT, SSD1306_SCK_PIN, PAL_MODE_ALTERNATE(1)|
PAL_STM32_OSPEED_HIGHEST);
palSetPad(SSD1306_CS_PORT, SSD1306_CS_PIN);
palSetPadMode(SSD1306_CS_PORT, SSD1306_CS_PIN, PAL_MODE_ALTERNATE(1)|
PAL_STM32_OSPEED_HIGHEST);
vccstate = SSD1306_SWITCHCAPVCC;
}
/**
* @brief Set or clear the lcd reset pin.
* @param[in] state TRUE = lcd in reset, FALSE = normal operation
* @notapi
*/
static inline void setpin_reset(bool_t state) {
if(state)
SET_RST
else
CLR_RST
}
/**
* @brief Set the lcd back-light level.
* @param[in] percent 0 to 100%
* @notapi
*/
static inline void set_backlight(uint8_t percent) {
// Since we are on OLED no backlight needed
}
/**
* @brief Take exclusive control of the bus
* @notapi
*/
static inline void acquire_bus(void) {
spiAcquireBus(&SPID1);
}
/**
* @brief Release exclusive control of the bus
* @notapi
*/
static inline void release_bus(void) {
spiReleaseBus(&SPID1);
}
/**
* @brief Send command to the display.
* @param[in] cmd The command to send *
* @notapi
*/
static inline void write_cmd(uint8_t cmd) {
uint8_t command[] = { 0x00, // Co = 0, D/C = 0
cmd },
txLength = sizeof(command)/sizeof(command[0]),
rxLength = 0;
spiStart(&SPID1, &spi1config);
spiSelect(&SPID1);
spiStartSend(&SPID1, txLength, command);
spiUnselect(&SPID1);
spiStop(&SPID1);
}
/**
* @brief Send data to the display.
* @param[in] data The data to send
* @notapi
*/
static inline void write_data(uint8_t* data, uint16_t length) {
uint8_t command[length+1],
txLength = length+1;
command[0] = 0x40; // Co = 0, D/C = 1
memmove(&command[1], data, length);
spiStart(&SPID1, &spi1config);
spiSelect(&SPID1);
spiStartSend(&SPID1, txLength, command);
spiUnselect(&SPID1);
spiStop(&SPID1);
}
#endif /* _GDISP_LLD_BOARD_H */
/** @} */

74
drivers/gdisp/SSD1306/gdisp_lld_board_template.h
View File

@ -1,74 +0,0 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
/**
* @brief Initialize the board for the display.
* @notes This board definition uses GPIO and assumes exclusive access to these GPIO pins
* @notapi
*/
static inline void init_board(void) {
}
/**
* @brief Set or clear the lcd reset pin.
* @param[in] state TRUE = lcd in reset, FALSE = normal operation
* @notapi
*/
static inline void setpin_reset(bool_t state) {
}
/**
* @brief Set the lcd back-light level.
* @param[in] percent 0 to 100%
* @notapi
*/
static inline void set_backlight(uint8_t percent) {
// Since we are on OLED no backlight needed
}
/**
* @brief Take exclusive control of the bus
* @notapi
*/
static inline void acquire_bus(void) {
}
/**
* @brief Release exclusive control of the bus
* @notapi
*/
static inline void release_bus(void) {
}
/**
* @brief Send command to the display.
* @param[in] cmd The command to send *
* @notapi
*/
static inline void write_cmd(uint8_t cmd) {
}
/**
* @brief Send data to the display.
* @param[in] data The data to send
* @notapi
*/
static inline void write_data(uint8_t* data, uint16_t length) {
}
#endif /* _GDISP_LLD_BOARD_H */
/** @} */

14
drivers/gdisp/SSD1306/gdisp_lld_config.h
View File

@ -14,17 +14,17 @@
/* Driver hardware support. */
/*===========================================================================*/
#define GDISP_DRIVER_NAME "SSD1306"
#define GDISP_HARDWARE_CLEARS FALSE
#define GDISP_HARDWARE_FILLS TRUE
#define GDISP_HARDWARE_BITFILLS FALSE
#define GDISP_HARDWARE_SCROLL TRUE
#define GDISP_HARDWARE_PIXELREAD FALSE
#define GDISP_HARDWARE_FLUSH TRUE // This controller requires flushing
#define GDISP_HARDWARE_DRAWPIXEL TRUE
#define GDISP_HARDWARE_PIXELREAD TRUE
#define GDISP_HARDWARE_CONTROL TRUE
#define GDISP_PIXELFORMAT GDISP_PIXELFORMAT_MONO
// This controller supports a special gdispControl() to inverse the display.
// Pass a parameter of 1 for inverse and 0 for normal.
#define GDISP_CONTROL_INVERSE (GDISP_CONTROL_LLD+0)
#endif /* GFX_USE_GDISP */
#endif /* _GDISP_LLD_CONFIG_H */