From 77994258c003552ebe5d05d78ab20150a0684649 Mon Sep 17 00:00:00 2001 From: inmarket Date: Mon, 11 Sep 2017 18:19:12 +1000 Subject: Add SSD1322 driver. Thanks to Andrey_13 (but with modifications) --- drivers/gdisp/SSD1322/gdisp_lld_SSD1322.c | 299 ++++++++++++++++++++++++++++++ 1 file changed, 299 insertions(+) create mode 100644 drivers/gdisp/SSD1322/gdisp_lld_SSD1322.c (limited to 'drivers/gdisp/SSD1322/gdisp_lld_SSD1322.c') diff --git a/drivers/gdisp/SSD1322/gdisp_lld_SSD1322.c b/drivers/gdisp/SSD1322/gdisp_lld_SSD1322.c new file mode 100644 index 00000000..38c711a8 --- /dev/null +++ b/drivers/gdisp/SSD1322/gdisp_lld_SSD1322.c @@ -0,0 +1,299 @@ +/* + * 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 + */ + +#include "gfx.h" + +#if GFX_USE_GDISP + +#define GDISP_DRIVER_VMT GDISPVMT_SSD1322 +#include "gdisp_lld_config.h" +#include "../../../src/gdisp/gdisp_driver.h" + +#include "board_SSD1322.h" +#include // for memset + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +#ifndef GDISP_SCREEN_HEIGHT + #define GDISP_SCREEN_HEIGHT 64 // This controller should support 64 +#endif +#ifndef GDISP_SCREEN_WIDTH + #define GDISP_SCREEN_WIDTH 256 +#endif +#ifndef GDISP_INITIAL_CONTRAST + #define GDISP_INITIAL_CONTRAST 100 +#endif +#ifndef GDISP_INITIAL_BACKLIGHT + #define GDISP_INITIAL_BACKLIGHT 100 +#endif +#ifndef SSD1322_USE_DMA + #define SSD1322_USE_DMA FALSE +#endif + +#define SSD1322_ROW_WIDTH (GDISP_SCREEN_WIDTH/2) + +#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER<<0) + +#include "SSD1322.h" + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +// Some common routines and macros +#define RAM(g) ((uint8_t *)g->priv) + +// Some common routines and macros +#define xyaddr(x, y) ((x) + (y)*SSD1322_ROW_WIDTH) +#define xybits(x, y, c) ((c)<<(((x)&1)<<2)) + +/*===========================================================================*/ +/* 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 4 bit grayscale. + * 64 * 128 / 2 = 4096 bytes. + */ + +LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { + // The private area is the display surface. + g->priv = gfxAlloc(GDISP_SCREEN_HEIGHT * SSD1322_ROW_WIDTH); + + // Initialise the board interface + init_board(g); + post_init_board(g); + + // Hardware reset + setpin_reset(g, TRUE); + gfxSleepMilliseconds(20); + setpin_reset(g, FALSE); + gfxSleepMilliseconds(200); + + + write_cmd(g,CMD_SET_COMMAND_LOCK); + write_data(g,0x12); // Unlock OLED driver IC + + write_cmd(g,CMD_SET_DISPLAY_OFF); + + write_cmd(g,CMD_SET_CLOCK_DIVIDER); + write_data(g,0x91); + + write_cmd(g,CMD_SET_MULTIPLEX_RATIO); + write_data(g,0x3F); //duty = 1/64*,64 COMS are enabled + + write_cmd(g,CMD_SET_DISPLAY_OFFSET); + write_data(g,0x00); + + write_cmd(g,CMD_SET_DISPLAY_START_LINE); //set start line position + write_data(g,0x00); + + write_cmd(g,CMD_SET_REMAP); + write_data(g,0x14); //Horizontal address increment,Disable Column Address Re-map,Enable Nibble Re-map,Scan from COM[N-1] to COM0,Disable COM Split Odd Even + write_data(g,0x11); //Enable Dual COM mode + + write_cmd(g,0xB5); //GPIO + write_data(g,0x00); + //writeCommand(0x00); + + write_cmd(g,CMD_SET_FUNCTION_SELECTION); + write_data(g,0x01);// selection external VDD + + write_cmd(g,CMD_DISPLAY_ENHANCEMENT); + write_data(g,0xA0);// enables the external VSL + write_data(g,0xb5);// 0xfd,Enhanced low GS display quality;default is 0xb5(normal), + + write_cmd(g,CMD_SET_CONTRAST_CURRENT); + write_data(g,0x7f); // 0xff default is 0x7f + + write_cmd(g,CMD_MASTER_CURRENT_CONTROL); + write_data(g,0x0f); //default is 0x0f + + write_cmd(g,0xB9); //GRAY TABLE,linear Gray Scale + + write_cmd(g,CMD_SET_PHASE_LENGTH); + write_data(g,0xE2); // default is 0x74 + + write_cmd(g,CMD_DISPLAY_ENHANCEMENT_B); + write_data(g,0xA2); // Reserved;default is 0xa2(normal) + write_data(g,0x20); + + write_cmd(g,CMD_SET_PRECHARGE_VOLTAGE); + write_data(g,0x1F); // 0.6xVcc + + write_cmd(g,CMD_SET_SECOND_PRECHARGE_PERIOD); + write_data(g,0x08); // default + + write_cmd(g,CMD_SET_VCOMH_VOLTAGE ); + write_data(g,0x07); // 0.86xVcc;default is 0x04 + + write_cmd(g,CMD_SET_DISPLAY_MODE_NORMAL); + + write_cmd(g,CMD_EXIT_PARTIAL_DISPLAY); + + write_cmd(g,CMD_SET_DISPLAY_ON); + // Finish Init + post_init_board(g); + + + + /* Initialise the GDISP structure */ + g->g.Width = GDISP_SCREEN_WIDTH; + g->g.Height = GDISP_SCREEN_HEIGHT; + g->g.Orientation = GDISP_ROTATE_180; + 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) { + uint8_t * ram; + unsigned cols,rows; + + // Don't flush if we don't need it. + if (!(g->flags & GDISP_FLG_NEEDFLUSH)) + return; + + acquire_bus(g); + write_cmd(g, CMD_SET_COLUMN_ADDR); // range 28 to 91 for 256 pixels to x + write_data(g, 28); + write_data(g, GDISP_SCREEN_WIDTH/4 + 28 - 1); + write_cmd(g, CMD_SET_ROW_ADDR); // range 0 to 63 for 64 pixels + write_data(g, 0); + write_data(g, GDISP_SCREEN_HEIGHT-1); + write_cmd(g, CMD_WRITE_RAM); + ram = RAM(g); + #if SSD1322_USE_DMA + write_data_DMA(g, ram); + #else + for(rows = 0; rows < GDISP_SCREEN_HEIGHT; rows ++) { + for(cols = 0;cols < GDISP_SCREEN_WIDTH/2; cols ++) { + write_data(g, *ram++); + } + } + #endif + release_bus(g); + g->flags &= ~GDISP_FLG_NEEDFLUSH; + } +#endif + +#if GDISP_HARDWARE_DRAWPIXEL + LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) { + coord_t x, y; + uint8_t *ram; + + switch(g->g.Orientation) { + default: + 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_WIDTH-1 - g->p.y; + y = g->p.x; + break; + } + ram = RAM(g)+xyaddr(x,y); + *ram &= ~xybits(x, y, LLDCOLOR_MASK()); + *ram |= xybits(x, y, gdispColor2Native(g->p.color)); + g->flags |= GDISP_FLG_NEEDFLUSH; + } +#endif + +#if GDISP_HARDWARE_PIXELREAD + LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) { + coord_t x, y; + LLDCOLOR_TYPE c; + + switch(g->g.Orientation) { + default: + 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_WIDTH-1 - g->p.y; + y = g->p.x; + break; + } + c = (RAM(g)[xyaddr(x, y)]>>((x & 1)<<2)) & LLDCOLOR_MASK(); + return gdispNative2Color(c); + } +#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, CMD_SET_DISPLAY_MODE_OFF); + release_bus(g); + break; + case powerOn: + acquire_bus(g); + write_cmd(g, CMD_SET_DISPLAY_MODE_ON); + 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; + } + } +#endif // GDISP_NEED_CONTROL + +#endif // GFX_USE_GDISP -- cgit v1.2.3