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Convert ST7565 driver to new driver format.

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This commit is contained in:
inmarket 2013-10-22 19:53:39 +10:00
parent 299cb353af
commit 92b00e125c
5 changed files with 320 additions and 306 deletions
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108
drivers/gdisp/ST7565/board_ST7565_template.h Normal file
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/*
* 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/ST7565/board_ST7565_template.h
* @brief GDISP Graphic Driver subsystem board interface for the ST7565 display.
*
* @addtogroup GDISP
* @{
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
/**
* @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 */
/** @} */

419
drivers/gdisp/ST7565/gdisp_lld.c
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@ -5,265 +5,258 @@
* http://ugfx.org/license.html
*/
/**
* @file drivers/gdisp/ST7565/gdisp_lld.c
* @brief GDISP Graphics Driver subsystem low level driver source for the ST7565 display.
*/
#include "gfx.h"
#if GFX_USE_GDISP || defined(__DOXYGEN__)
#if GFX_USE_GDISP
#define GDISP_DRIVER_VMT GDISPVMT_ST7565
#include "../drivers/gdisp/ST7565/gdisp_lld_config.h"
#include "gdisp/lld/gdisp_lld.h"
/* Include the emulation code for things we don't support */
#include "gdisp/lld/emulation.c"
#include "st7565.h"
#include "gdisp_lld_board.h"
#include "board_ST7565.h"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#ifndef GDISP_SCREEN_HEIGHT
#define GDISP_SCREEN_HEIGHT 64
#define GDISP_SCREEN_HEIGHT 64
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 128
#define GDISP_SCREEN_WIDTH 128
#endif
#ifndef GDISP_INITIAL_CONTRAST
#define GDISP_INITIAL_CONTRAST 51
#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 "st7565.h"
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
// Some common routines and macros
#define delay(us) gfxSleepMicroseconds(us)
#define delay_ms(ms) gfxSleepMilliseconds(ms)
#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); }
// The memory buffer for the display
static uint8_t gdisp_buffer[GDISP_SCREEN_HEIGHT * GDISP_SCREEN_WIDTH / 8];
// Some common routines and macros
#define delay(us) gfxSleepMicroseconds(us)
#define delay_ms(ms) gfxSleepMilliseconds(ms)
/** 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 ? ST7565_INVERT_DISPLAY : ST7565_POSITIVE_DISPLAY);
}
/** Turn the whole display off.
* Sends the display to sleep, but leaves RAM intact.
* @notapi
*/
static void display_off(void) {
write_cmd(ST7565_DISPLAY_OFF);
}
/** Turn the whole display on.
* Wakes up this display following a sleep() call.
* @notapi
*/
static void display_on(void) {
write_cmd(ST7565_DISPLAY_ON);
}
/** Set the display contrast.
* @param[in] value The contrast, from 1 to 63.
* @notapi
*/
static void set_contrast(uint8_t value) {
write_cmd(ST7565_CONTRAST);
write_cmd(value & 0x3F);
}
/** 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(ST7565_START_LINE | value);
}
static void gdisp_lld_display(void) {
uint8_t p;
set_display_start_line(0);
for (p = 0; p < 8; p++) {
write_cmd(ST7565_PAGE | p);
write_cmd(ST7565_COLUMN_MSB | 0);
write_cmd(ST7565_COLUMN_LSB | 0);
write_cmd(ST7565_RMW);
write_data(&gdisp_buffer[p * GDISP_SCREEN_WIDTH], GDISP_SCREEN_WIDTH);
}
}
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
#define xyaddr(x, y) ((x) + ((y)>>3)*GDISP_SCREEN_WIDTH)
#define xybit(y) (1<<((y)&7))
/*===========================================================================*/
/* 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);
delay_ms(10);
setpin_reset(FALSE);
delay_ms(1);
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);
write_cmd(ST7565_LCD_BIAS_7);
write_cmd(ST7565_ADC_NORMAL);
write_cmd(ST7565_COM_SCAN_INC);
set_display_start_line(0);
// Initialise the board interface
init_board(g);
set_contrast(32);
write_cmd(ST7565_RESISTOR_RATIO | 0x3);
// Hardware reset
setpin_reset(g, TRUE);
gfxSleepMilliseconds(20);
setpin_reset(g, FALSE);
gfxSleepMilliseconds(20);
// turn on voltage converter (VC=1, VR=0, VF=0)
write_cmd(ST7565_POWER_CONTROL | 0x04);
delay_ms(50);
// turn on voltage regulator (VC=1, VR=1, VF=0)
write_cmd(ST7565_POWER_CONTROL | 0x06);
delay_ms(50);
// turn on voltage follower (VC=1, VR=1, VF=1)
write_cmd(ST7565_POWER_CONTROL | 0x07);
delay_ms(50);
acquire_bus(g);
display_on();
write_cmd(ST7565_ALLON_NORMAL);
invert_display(0);// Disable Inversion of display.
write_cmd(g, ST7565_LCD_BIAS_7);
write_cmd(g, ST7565_ADC_NORMAL);
write_cmd(g, ST7565_COM_SCAN_INC);
write_cmd(g, ST7565_START_LINE | 0);
write_cmd(ST7565_RMW);
gdisp_lld_display();
write_cmd2(g, ST7565_CONTRAST, GDISP_INITIAL_CONTRAST*64/101);
write_cmd(g, ST7565_RESISTOR_RATIO | 0x3);
// Initialize the GDISP structure
GDISP.Width = GDISP_SCREEN_WIDTH;
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Orientation = GDISP_ROTATE_0;
GDISP.Powermode = powerOn;
GDISP.Contrast = 50;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
return TRUE;
// turn on voltage converter (VC=1, VR=0, VF=0)
write_cmd(g, ST7565_POWER_CONTROL | 0x04);
delay_ms(50);
// turn on voltage regulator (VC=1, VR=1, VF=0)
write_cmd(g, ST7565_POWER_CONTROL | 0x06);
delay_ms(50);
// turn on voltage follower (VC=1, VR=1, VF=1)
write_cmd(g, ST7565_POWER_CONTROL | 0x07);
delay_ms(50);
write_cmd(g, ST7565_DISPLAY_ON);
write_cmd(g, ST7565_ALLON_NORMAL);
write_cmd(g, ST7565_POSITIVE_DISPLAY); // Disable Inversion of display.
write_cmd(g, ST7565_RMW);
// Finish Init
post_init_board(g);
// Release the bus
release_bus(g);
/* 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;
#if GDISP_HARDWARE_FLUSH
LLDSPEC void gdisp_lld_flush(GDisplay *g) {
unsigned p;
// Don't flush if we don't need it.
if (!(g->flags & GDISP_FLG_NEEDFLUSH))
return;
acquire_bus(g);
for (p = 0; p < 8; p++) {
write_cmd(g, ST7565_PAGE | p);
write_cmd(g, ST7565_COLUMN_MSB | 0);
write_cmd(g, ST7565_COLUMN_LSB | 0);
write_cmd(g, ST7565_RMW);
write_data(g, RAM(g) + (p*GDISP_SCREEN_WIDTH), GDISP_SCREEN_WIDTH);
}
release_bus(g);
}
#endif
if (color == 1)
gdisp_buffer[x+ (y/8)*GDISP_SCREEN_WIDTH] |= (1<<y%8);
else
gdisp_buffer[x+ (y/8)*GDISP_SCREEN_WIDTH] &= ~(1<<y%8);
}
#if GDISP_HARDWARE_DRAWPIXEL
LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
coord_t x, y;
/* ---- 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().
*/
switch(g->g.Orientation) {
case GDISP_ROTATE_0:
x = g->p.x;
y = g->p.y;
break;
case GDISP_ROTATE_90:
x = g->p.y;
y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
break;
case GDISP_ROTATE_180:
x = GDISP_SCREEN_WIDTH-1 - g->p.x;
y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
break;
case GDISP_ROTATE_270:
x = GDISP_SCREEN_HEIGHT-1 - g->p.y;
y = g->p.x;
break;
}
if (g->p.color != Black)
RAM(g)[xyaddr(x, y)] |= xybit(y);
else
RAM(g)[xyaddr(x, y)] &= ~xybit(y);
g->flags |= GDISP_FLG_NEEDFLUSH;
}
#endif
#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) {
case GDISP_CONTROL_POWER:
if (GDISP.Powermode == (gdisp_powermode_t)value)
return;
#if GDISP_HARDWARE_PIXELREAD
LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) {
coord_t x, y;
switch((gdisp_powermode_t)value) {
case powerOff:
display_off();
break;
case powerSleep:
display_off();
break;
case powerDeepSleep:
display_off();
break;
case powerOn:
display_on();
break;
default:
return;
}
GDISP.Powermode = (gdisp_powermode_t)value;
return;
switch(g->g.Orientation) {
case GDISP_ROTATE_0:
x = g->p.x;
y = g->p.y;
break;
case GDISP_ROTATE_90:
x = g->p.y;
y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
break;
case GDISP_ROTATE_180:
x = GDISP_SCREEN_WIDTH-1 - g->p.x;
y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
break;
case GDISP_ROTATE_270:
x = GDISP_SCREEN_HEIGHT-1 - g->p.y;
x = g->p.x;
break;
}
return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? White : Black;
}
#endif
case GDISP_CONTROL_BACKLIGHT:
set_backlight((uint8_t)(size_t)value);
return;
#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
LLDSPEC void gdisp_lld_control(GDisplay *g) {
switch(g->p.x) {
case GDISP_CONTROL_POWER:
if (g->g.Powermode == (powermode_t)g->p.ptr)
return;
switch((powermode_t)g->p.ptr) {
case powerOff:
case powerSleep:
case powerDeepSleep:
acquire_bus(g);
write_cmd(g, ST7565_DISPLAY_OFF);
release_bus(g);
break;
case powerOn:
acquire_bus(g);
write_cmd(g, ST7565_DISPLAY_ON);
release_bus(g);
break;
default:
return;
}
g->g.Powermode = (powermode_t)g->p.ptr;
return;
case GDISP_CONTROL_CONTRAST:
if ((unsigned)value > 100) value = (void*)100;
if (GDISP.Contrast == (uint8_t)((float)((size_t)value) * 63.0/100.0))
return;
set_contrast((uint8_t)((float)((size_t)value) * 63.0/100.0) );
GDISP.Contrast = (unsigned)value;
return;
case GDISP_CONTROL_ORIENTATION:
if (g->g.Orientation == (orientation_t)g->p.ptr)
return;
switch((orientation_t)g->p.ptr) {
/* Rotation is handled by the drawing routines */
case GDISP_ROTATE_0:
case GDISP_ROTATE_180:
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
case GDISP_ROTATE_270:
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
g->g.Orientation = (orientation_t)g->p.ptr;
return;
case GDISP_CONTROL_LLD_FLUSH:
gdisp_lld_display();
return;
}
}
case GDISP_CONTROL_CONTRAST:
if ((unsigned)g->p.ptr > 100)
g->p.ptr = (void *)100;
acquire_bus(g);
write_cmd2(g, ST7565_CONTRAST, ((((unsigned)g->p.ptr)<<6)/101) & 0x3F);
release_bus(g);
g->g.Contrast = (unsigned)g->p.ptr;
return;
}
}
#endif // GDISP_NEED_CONTROL
#endif // GFX_USE_GDISP
/** @} */

6
drivers/gdisp/ST7565/gdisp_lld.mk
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@ -1,6 +1,2 @@
# List the required driver.
GFXSRC += $(GFXLIB)/drivers/gdisp/ST7565/gdisp_lld.c
# Required include directories
GFXINC += $(GFXLIB)/drivers/gdisp/ST7565
GFXSRC += $(GFXLIB)/drivers/gdisp/ST7565/gdisp_lld.c

82
drivers/gdisp/ST7565/gdisp_lld_board_template.h
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@ -1,82 +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) {
/* Configure SPI bus here. Up to 10Mhz, SPI Mode = 3 (CPOL = 1, CPHA = 0) */
/* Configure A0, !CS, !RST pin for output */
}
/**
* @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) {
/* Set !CS to low */
if (state) {
/* Set !RST to low */
} else {
/* Set !RST to high */
}
}
/**
* @brief Set the lcd back-light level.
* @param[in] percent 0 to 100%
* @notapi
*/
static inline void set_backlight(uint8_t percent) {
}
/**
* @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) {
/* Set A0 to low */
/* Transmit cmd over SPI */
}
/**
* @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) {
/* Set A0 to high */
/* Transmit data for length over SPI. DMA is recommended. */
}
#endif /* _GDISP_LLD_BOARD_H */
/** @} */

11
drivers/gdisp/ST7565/gdisp_lld_config.h
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@ -14,13 +14,12 @@
/* Driver hardware support. */
/*===========================================================================*/
#define GDISP_DRIVER_NAME "ST7565"
#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_HARDWARE_CONTROL TRUE
#define GDISP_PIXELFORMAT GDISP_PIXELFORMAT_MONO
#define GDISP_CONTROL_LLD_FLUSH (GDISP_CONTROL_LLD + 1)
#define GDISP_PIXELFORMAT GDISP_PIXELFORMAT_MONO
#endif /* GFX_USE_GDISP */