383 lines
12 KiB
C
383 lines
12 KiB
C
/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.org/license.html
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*/
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/**
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* @file drivers/gdisp/ILI9320/gdisp_lld.c
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* @brief GDISP Graphics Driver subsystem low level driver source for the ILI9320 display.
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*/
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#include "gfx.h"
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#if GFX_USE_GDISP
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/* This controller is only ever used with a 240 x 320 display */
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#if defined(GDISP_SCREEN_HEIGHT)
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#warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
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#undef GDISP_SCREEN_HEIGHT
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#endif
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#if defined(GDISP_SCREEN_WIDTH)
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#warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
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#undef GDISP_SCREEN_WIDTH
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#endif
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#define GDISP_DRIVER_VMT GDISPVMT_ILI9320
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#include "drivers/gdisp/ILI9320/gdisp_lld_config.h"
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#include "src/gdisp/driver.h"
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#include "board_ILI9320.h"
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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#ifndef GDISP_SCREEN_HEIGHT
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#define GDISP_SCREEN_HEIGHT 320
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#endif
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#ifndef GDISP_SCREEN_WIDTH
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#define GDISP_SCREEN_WIDTH 240
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#endif
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#ifndef GDISP_INITIAL_CONTRAST
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#define GDISP_INITIAL_CONTRAST 50
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#endif
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#ifndef GDISP_INITIAL_BACKLIGHT
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#define GDISP_INITIAL_BACKLIGHT 100
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#endif
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/*===========================================================================*/
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/* Driver local variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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#define dummy_read(g) { volatile uint16_t dummy; dummy = read_data(g); (void) dummy; }
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#define write_reg(g, reg, data) { write_index(g, reg); write_data(g, data); }
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static void set_cursor(GDisplay *g) {
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switch(g->g.Orientation) {
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default:
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case GDISP_ROTATE_0:
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case GDISP_ROTATE_180:
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write_reg(g, 0x20, g->p.x);
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write_reg(g, 0x21, g->p.y);
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break;
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case GDISP_ROTATE_90:
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case GDISP_ROTATE_270:
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write_reg(g, 0x20, g->p.y);
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write_reg(g, 0x21, g->p.x);
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break;
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}
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write_index(g, 0x22);
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}
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static void set_viewport(GDisplay *g) {
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switch(g->g.Orientation) {
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default:
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case GDISP_ROTATE_0:
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case GDISP_ROTATE_180:
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write_reg(g, 0x50, g->p.x);
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write_reg(g, 0x51, g->p.x + g->p.cx - 1);
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write_reg(g, 0x52, g->p.y);
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write_reg(g, 0x53, g->p.y + g->p.cy - 1);
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break;
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case GDISP_ROTATE_90:
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case GDISP_ROTATE_270:
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write_reg(g, 0x50, g->p.y);
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write_reg(g, 0x51, g->p.y + g->p.cy - 1);
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write_reg(g, 0x52, g->p.x);
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write_reg(g, 0x53, g->p.x + g->p.cx - 1);
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break;
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}
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}
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LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
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uint16_t cver;
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// No private area for this controller
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g->priv = 0;
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// Initialise the board interface
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init_board(g);
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/* Hardware reset */
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setpin_reset(g, TRUE);
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gfxSleepMicroseconds(1000);
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setpin_reset(g, FALSE);
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gfxSleepMicroseconds(1000);
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acquire_bus(g);
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write_index(g, 0); // Get controller version
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setreadmode(g);
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dummy_read(g);
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cver = read_data(g);
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setwritemode(g);
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write_reg(g, 0x00, 0x0001); //start Int. osc
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gfxSleepMicroseconds(500);
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write_reg(g, 0x01, 0x0100); //Set SS bit (shift direction of outputs is from S720 to S1)
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write_reg(g, 0x02, 0x0700); //select the line inversion
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write_reg(g, 0x03, 0x1038); //Entry mode(Horizontal : increment,Vertical : increment, AM=1)
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write_reg(g, 0x04, 0x0000); //Resize control(No resizing)
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write_reg(g, 0x08, 0x0202); //front and back porch 2 lines
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write_reg(g, 0x09, 0x0000); //select normal scan
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write_reg(g, 0x0A, 0x0000); //display control 4
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write_reg(g, 0x0C, 0x0000); //system interface(2 transfer /pixel), internal sys clock,
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write_reg(g, 0x0D, 0x0000); //Frame marker position
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write_reg(g, 0x0F, 0x0000); //selects clk, enable and sync signal polarity,
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write_reg(g, 0x10, 0x0000); //
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write_reg(g, 0x11, 0x0000); //power control 2 reference voltages = 1:1,
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write_reg(g, 0x12, 0x0000); //power control 3 VRH
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write_reg(g, 0x13, 0x0000); //power control 4 VCOM amplitude
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gfxSleepMicroseconds(500);
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write_reg(g, 0x10, 0x17B0); //power control 1 BT,AP
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write_reg(g, 0x11, 0x0137); //power control 2 DC,VC
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gfxSleepMicroseconds(500);
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write_reg(g, 0x12, 0x0139); //power control 3 VRH
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gfxSleepMicroseconds(500);
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write_reg(g, 0x13, 0x1d00); //power control 4 vcom amplitude
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write_reg(g, 0x29, 0x0011); //power control 7 VCOMH
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gfxSleepMicroseconds(500);
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write_reg(g, 0x30, 0x0007);
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write_reg(g, 0x31, 0x0403);
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write_reg(g, 0x32, 0x0404);
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write_reg(g, 0x35, 0x0002);
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write_reg(g, 0x36, 0x0707);
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write_reg(g, 0x37, 0x0606);
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write_reg(g, 0x38, 0x0106);
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write_reg(g, 0x39, 0x0007);
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write_reg(g, 0x3c, 0x0700);
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write_reg(g, 0x3d, 0x0707);
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write_reg(g, 0x20, 0x0000); //starting Horizontal GRAM Address
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write_reg(g, 0x21, 0x0000); //starting Vertical GRAM Address
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write_reg(g, 0x50, 0x0000); //Horizontal GRAM Start Position
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write_reg(g, 0x51, 0x00EF); //Horizontal GRAM end Position
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write_reg(g, 0x52, 0x0000); //Vertical GRAM Start Position
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write_reg(g, 0x53, 0x013F); //Vertical GRAM end Position
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switch (cver) {
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case 0x9320:
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write_reg(g, 0x60, 0x2700); //starts scanning from G1, and 320 drive lines
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break;
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case 0x9325:
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write_reg(g, 0x60, 0xA700); //starts scanning from G1, and 320 drive lines
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break;
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}
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write_reg(g, 0x61, 0x0001); //fixed base display
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write_reg(g, 0x6a, 0x0000); //no scroll
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write_reg(g, 0x90, 0x0010); //set Clocks/Line =16, Internal Operation Clock Frequency=fosc/1,
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write_reg(g, 0x92, 0x0000); //set gate output non-overlap period=0
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write_reg(g, 0x93, 0x0003); //set Source Output Position=3
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write_reg(g, 0x95, 0x0110); //RGB interface(Clocks per line period=16 clocks)
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write_reg(g, 0x97, 0x0110); //set Gate Non-overlap Period 0 locksc
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write_reg(g, 0x98, 0x0110); //
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write_reg(g, 0x07, 0x0173); //display On
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// Finish Init
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post_init_board(g);
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// Release the bus
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release_bus(g);
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// Turn on the backlight
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set_backlight(g, GDISP_INITIAL_BACKLIGHT);
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/* Initialise the GDISP structure */
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g->g.Width = GDISP_SCREEN_WIDTH;
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g->g.Height = GDISP_SCREEN_HEIGHT;
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g->g.Orientation = GDISP_ROTATE_0;
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g->g.Powermode = powerOn;
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g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
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g->g.Contrast = GDISP_INITIAL_CONTRAST;
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return TRUE;
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}
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#if GDISP_HARDWARE_STREAM_WRITE
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LLDSPEC void gdisp_lld_write_start(GDisplay *g) {
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acquire_bus(g);
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set_viewport(g);
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#if !GDISP_HARDWARE_STREAM_POS
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set_cursor(g);
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#endif
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}
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LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
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write_data(g, gdispColor2Native(g->p.color));
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}
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LLDSPEC void gdisp_lld_write_stop(GDisplay *g) {
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release_bus(g);
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}
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#if GDISP_HARDWARE_STREAM_POS
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LLDSPEC void gdisp_lld_write_pos(GDisplay *g) {
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set_cursor(g);
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}
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#endif
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#endif
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#if GDISP_HARDWARE_STREAM_READ
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LLDSPEC void gdisp_lld_read_start(GDisplay *g) {
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acquire_bus(g);
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set_viewport(g);
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set_cursor(g);
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setreadmode(g);
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dummy_read(g);
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}
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LLDSPEC color_t gdisp_lld_read_color(GDisplay *g) {
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uint16_t data;
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data = read_data(g);
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return gdispNative2Color(data);
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}
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LLDSPEC void gdisp_lld_read_stop(GDisplay *g) {
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setwritemode(g);
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release_bus(g);
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}
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#endif
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#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
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LLDSPEC void gdisp_lld_control(GDisplay *g) {
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switch(g->p.x) {
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case GDISP_CONTROL_POWER:
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if (g->g.Powermode == (powermode_t)g->p.ptr)
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return;
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switch((powermode_t)g->p.ptr) {
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case powerOff:
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acquire_bus(g);
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write_reg(g, 0x07, 0x0000);
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write_reg(g, 0x10, 0x0000);
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write_reg(g, 0x11, 0x0000);
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write_reg(g, 0x12, 0x0000);
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write_reg(g, 0x13, 0x0000);
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release_bus(g);
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set_backlight(g, 0);
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break;
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case powerOn:
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//*************Power On sequence ******************//
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acquire_bus(g);
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write_reg(g, 0x10, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
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write_reg(g, 0x11, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
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write_reg(g, 0x12, 0x0000); /* VREG1OUT voltage */
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write_reg(g, 0x13, 0x0000); /* VDV[4:0] for VCOM amplitude */
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gfxSleepMicroseconds(2000); /* Dis-charge capacitor power voltage */
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write_reg(g, 0x10, 0x17B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
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write_reg(g, 0x11, 0x0147); /* DC1[2:0], DC0[2:0], VC[2:0] */
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gfxSleepMicroseconds(500);
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write_reg(g, 0x12, 0x013C); /* VREG1OUT voltage */
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gfxSleepMicroseconds(500);
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write_reg(g, 0x13, 0x0E00); /* VDV[4:0] for VCOM amplitude */
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write_reg(g, 0x29, 0x0009); /* VCM[4:0] for VCOMH */
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gfxSleepMicroseconds(500);
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write_reg(g, 0x07, 0x0173); /* 262K color and display ON */
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release_bus(g);
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set_backlight(g, g->g.Backlight);
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break;
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case powerSleep:
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acquire_bus(g);
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write_reg(g, 0x07, 0x0000); /* display OFF */
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write_reg(g, 0x10, 0x0000); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
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write_reg(g, 0x11, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
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write_reg(g, 0x12, 0x0000); /* VREG1OUT voltage */
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write_reg(g, 0x13, 0x0000); /* VDV[4:0] for VCOM amplitude */
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gfxSleepMicroseconds(2000); /* Dis-charge capacitor power voltage */
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write_reg(g, 0x10, 0x0002); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
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release_bus(g);
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set_backlight(g, 0);
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break;
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case powerDeepSleep:
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acquire_bus(g);
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write_reg(g, 0x07, 0x0000); /* display OFF */
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write_reg(g, 0x10, 0x0000); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
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write_reg(g, 0x11, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
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write_reg(g, 0x12, 0x0000); /* VREG1OUT voltage */
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write_reg(g, 0x13, 0x0000); /* VDV[4:0] for VCOM amplitude */
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gfxSleepMicroseconds(2000); /* Dis-charge capacitor power voltage */
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write_reg(g, 0x10, 0x0004); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
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release_bus(g);
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set_backlight(g, 0);
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break;
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default:
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return;
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}
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g->g.Powermode = (powermode_t)g->p.ptr;
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return;
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case GDISP_CONTROL_ORIENTATION:
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if (g->g.Orientation == (orientation_t)g->p.ptr)
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return;
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switch((orientation_t)g->p.ptr) {
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case GDISP_ROTATE_0:
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acquire_bus(g);
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write_reg(g, 0x01, 0x0100);
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write_reg(g, 0x03, 0x1038);
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write_reg(g, 0x60, 0x2700);
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release_bus(g);
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g->g.Height = GDISP_SCREEN_HEIGHT;
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g->g.Width = GDISP_SCREEN_WIDTH;
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break;
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case GDISP_ROTATE_90:
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acquire_bus(g);
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write_reg(g, 0x01, 0x0100);
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write_reg(g, 0x03, 0x1030);
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write_reg(g, 0x60, 0x2700);
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release_bus(g);
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g->g.Height = GDISP_SCREEN_WIDTH;
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g->g.Width = GDISP_SCREEN_HEIGHT;
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break;
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case GDISP_ROTATE_180:
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acquire_bus(g);
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write_reg(g, 0x01, 0x0000);
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write_reg(g, 0x03, 0x1030);
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write_reg(g, 0x60, 0x2700);
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release_bus(g);
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g->g.Height = GDISP_SCREEN_HEIGHT;
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g->g.Width = GDISP_SCREEN_WIDTH;
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break;
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case GDISP_ROTATE_270:
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acquire_bus(g);
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write_reg(g, 0x01, 0x0000);
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write_reg(g, 0x03, 0x1038);
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write_reg(g, 0x60, 0xA700);
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release_bus(g);
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g->g.Height = GDISP_SCREEN_WIDTH;
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g->g.Width = GDISP_SCREEN_HEIGHT;
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break;
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default:
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return;
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}
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g->g.Orientation = (orientation_t)g->p.ptr;
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return;
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case GDISP_CONTROL_BACKLIGHT:
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if ((unsigned)g->p.ptr > 100)
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g->p.ptr = (void *)100;
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set_backlight(g, (unsigned)g->p.ptr);
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g->g.Backlight = (unsigned)g->p.ptr;
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return;
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default:
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return;
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}
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}
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#endif
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#endif /* GFX_USE_GDISP */
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