diff options
Diffstat (limited to 'drivers/gdisp/SSD1306')
-rw-r--r-- | drivers/gdisp/SSD1306/gdisp_lld.mk | 2 | ||||
-rw-r--r-- | drivers/gdisp/SSD1306/gdisp_lld_SSD1306.c (renamed from drivers/gdisp/SSD1306/gdisp_lld.c) | 560 |
2 files changed, 281 insertions, 281 deletions
diff --git a/drivers/gdisp/SSD1306/gdisp_lld.mk b/drivers/gdisp/SSD1306/gdisp_lld.mk index ad320292..13df4230 100644 --- a/drivers/gdisp/SSD1306/gdisp_lld.mk +++ b/drivers/gdisp/SSD1306/gdisp_lld.mk @@ -1,2 +1,2 @@ GFXINC += $(GFXLIB)/drivers/gdisp/SSD1306
-GFXSRC += $(GFXLIB)/drivers/gdisp/SSD1306/gdisp_lld.c
+GFXSRC += $(GFXLIB)/drivers/gdisp/SSD1306/gdisp_lld_SSD1306.c
diff --git a/drivers/gdisp/SSD1306/gdisp_lld.c b/drivers/gdisp/SSD1306/gdisp_lld_SSD1306.c index 390a9282..bd3e386d 100644 --- a/drivers/gdisp/SSD1306/gdisp_lld.c +++ b/drivers/gdisp/SSD1306/gdisp_lld_SSD1306.c @@ -1,280 +1,280 @@ -/*
- * 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/gdisp_lld.c
- * @brief GDISP Graphics Driver subsystem low level driver source for the SSD1306 display.
- */
-
-#include "gfx.h"
-
-#if GFX_USE_GDISP
-
-#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 // 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
-#ifdef SSD1306_PAGE_PREFIX
- #define SSD1306_PAGE_WIDTH (GDISP_SCREEN_WIDTH+1)
- #define SSD1306_PAGE_OFFSET 1
-#else
- #define SSD1306_PAGE_WIDTH GDISP_SCREEN_WIDTH
- #define SSD1306_PAGE_OFFSET 0
-#endif
-
-#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER<<0)
-
-#include "SSD1306.h"
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-// 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)
-
-#define xyaddr(x, y) (SSD1306_PAGE_OFFSET + (x) + ((y)>>3)*SSD1306_PAGE_WIDTH)
-#define xybit(y) (1<<((y)&7))
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * 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.
- */
-
-LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
- // The private area is the display surface.
- g->priv = gfxAlloc(GDISP_SCREEN_HEIGHT/8 * SSD1306_PAGE_WIDTH);
-
- // Fill in the prefix command byte on each page line of the display buffer
- // We can do it during initialisation as this byte is never overwritten.
- #ifdef SSD1306_PAGE_PREFIX
- {
- unsigned i;
-
- for(i=0; i < GDISP_SCREEN_HEIGHT/8 * SSD1306_PAGE_WIDTH; i+=SSD1306_PAGE_WIDTH)
- RAM(g)[i] = SSD1306_PAGE_PREFIX;
- }
- #endif
-
- // Initialise the board interface
- init_board(g);
-
- // 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
- write_cmd2(g, SSD1306_SETCOMPINS, 0x12);
- #else
- write_cmd2(g, SSD1306_SETCOMPINS, 0x22);
- #endif
- 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);
-
- // 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;
-}
-
-#if GDISP_HARDWARE_FLUSH
- LLDSPEC void gdisp_lld_flush(GDisplay *g) {
- unsigned i;
-
- // Don't flush if we don't need it.
- if (!(g->flags & GDISP_FLG_NEEDFLUSH))
- return;
-
- write_cmd(g, SSD1306_SETSTARTLINE | 0);
-
- for(i=0; i < GDISP_SCREEN_HEIGHT/8 * SSD1306_PAGE_WIDTH; i+=SSD1306_PAGE_WIDTH)
- write_data(g, RAM(g)+i, SSD1306_PAGE_WIDTH);
- }
-#endif
-
-#if GDISP_HARDWARE_DRAWPIXEL
- LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
- coord_t x, y;
-
- 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;
- }
- 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_HARDWARE_PIXELREAD
- LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) {
- coord_t x, y;
-
- 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;
- }
- return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? White : Black;
- }
-#endif
-
-#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, SSD1306_DISPLAYOFF);
- release_bus(g);
- break;
- case powerOn:
- acquire_bus(g);
- write_cmd(g, SSD1306_DISPLAYON);
- release_bus(g);
- break;
- default:
- return;
- }
- g->g.Powermode = (powermode_t)g->p.ptr;
- 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_CONTRAST:
- if ((unsigned)g->p.ptr > 100)
- g->p.ptr = (void *)100;
- acquire_bus(g);
- write_cmd2(g, SSD1306_SETCONTRAST, (((unsigned)g->p.ptr)<<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_INVERSE:
- acquire_bus(g);
- write_cmd(g, g->p.ptr ? SSD1306_INVERTDISPLAY : SSD1306_NORMALDISPLAY);
- release_bus(g);
- return;
- }
- }
-#endif // GDISP_NEED_CONTROL
-
-#endif // GFX_USE_GDISP
-
+/* + * 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/gdisp_lld.c + * @brief GDISP Graphics Driver subsystem low level driver source for the SSD1306 display. + */ + +#include "gfx.h" + +#if GFX_USE_GDISP + +#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 // 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 +#ifdef SSD1306_PAGE_PREFIX + #define SSD1306_PAGE_WIDTH (GDISP_SCREEN_WIDTH+1) + #define SSD1306_PAGE_OFFSET 1 +#else + #define SSD1306_PAGE_WIDTH GDISP_SCREEN_WIDTH + #define SSD1306_PAGE_OFFSET 0 +#endif + +#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER<<0) + +#include "SSD1306.h" + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +// 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) + +#define xyaddr(x, y) (SSD1306_PAGE_OFFSET + (x) + ((y)>>3)*SSD1306_PAGE_WIDTH) +#define xybit(y) (1<<((y)&7)) + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/** + * 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. + */ + +LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { + // The private area is the display surface. + g->priv = gfxAlloc(GDISP_SCREEN_HEIGHT/8 * SSD1306_PAGE_WIDTH); + + // Fill in the prefix command byte on each page line of the display buffer + // We can do it during initialisation as this byte is never overwritten. + #ifdef SSD1306_PAGE_PREFIX + { + unsigned i; + + for(i=0; i < GDISP_SCREEN_HEIGHT/8 * SSD1306_PAGE_WIDTH; i+=SSD1306_PAGE_WIDTH) + RAM(g)[i] = SSD1306_PAGE_PREFIX; + } + #endif + + // Initialise the board interface + init_board(g); + + // 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 + write_cmd2(g, SSD1306_SETCOMPINS, 0x12); + #else + write_cmd2(g, SSD1306_SETCOMPINS, 0x22); + #endif + 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); + + // 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; +} + +#if GDISP_HARDWARE_FLUSH + LLDSPEC void gdisp_lld_flush(GDisplay *g) { + unsigned i; + + // Don't flush if we don't need it. + if (!(g->flags & GDISP_FLG_NEEDFLUSH)) + return; + + write_cmd(g, SSD1306_SETSTARTLINE | 0); + + for(i=0; i < GDISP_SCREEN_HEIGHT/8 * SSD1306_PAGE_WIDTH; i+=SSD1306_PAGE_WIDTH) + write_data(g, RAM(g)+i, SSD1306_PAGE_WIDTH); + } +#endif + +#if GDISP_HARDWARE_DRAWPIXEL + LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) { + coord_t x, y; + + 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; + } + 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_HARDWARE_PIXELREAD + LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) { + coord_t x, y; + + 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; + } + return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? White : Black; + } +#endif + +#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, SSD1306_DISPLAYOFF); + release_bus(g); + break; + case powerOn: + acquire_bus(g); + write_cmd(g, SSD1306_DISPLAYON); + release_bus(g); + break; + default: + return; + } + g->g.Powermode = (powermode_t)g->p.ptr; + 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_CONTRAST: + if ((unsigned)g->p.ptr > 100) + g->p.ptr = (void *)100; + acquire_bus(g); + write_cmd2(g, SSD1306_SETCONTRAST, (((unsigned)g->p.ptr)<<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_INVERSE: + acquire_bus(g); + write_cmd(g, g->p.ptr ? SSD1306_INVERTDISPLAY : SSD1306_NORMALDISPLAY); + release_bus(g); + return; + } + } +#endif // GDISP_NEED_CONTROL + +#endif // GFX_USE_GDISP + |