237 lines
9.1 KiB
C
237 lines
9.1 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/HX8347D/gdisp_lld.c
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* @brief GDISP Graphics Driver subsystem low level driver source for the HX8347D display.
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*/
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#include "gfx.h"
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#if GFX_USE_GDISP
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#define GDISP_DRIVER_VMT GDISPVMT_HX8347D
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#include "drivers/gdisp/HX8347D/gdisp_lld_config.h"
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#include "src/gdisp/driver.h"
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#include "board_HX8347D.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 functions. */
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/*===========================================================================*/
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#include "../drivers/gdisp/HX8347D/HX8347D.h"
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#define write_reg(g, reg, data) { write_index(g, reg); write_data(g, data); }
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static inline void set_viewport(GDisplay* g) {
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write_reg(g, HX8347D_REG_SCL, g->p.x);
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write_reg(g, HX8347D_REG_SCH, g->p.x >> 8);
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write_reg(g, HX8347D_REG_ECL, g->p.x + g->p.cx -1);
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write_reg(g, HX8347D_REG_ECH, (g->p.x + g->p.cx -1) >> 8);
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write_reg(g, HX8347D_REG_SPL, g->p.y);
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write_reg(g, HX8347D_REG_SPH, g->p.y >> 8);
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write_reg(g, HX8347D_REG_EPL, g->p.y + g->p.cy -1);
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write_reg(g, HX8347D_REG_EPH, (g->p.y + g->p.cy -1) >> 8);
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write_index(g, HX8347D_REG_SRAMWC);
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}
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
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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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gfxSleepMilliseconds(1);
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setpin_reset(g, FALSE);
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gfxSleepMilliseconds(5);
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// Get the bus for the following initialisation commands
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acquire_bus(g);
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/* Start Initial Sequence ----------------------------------------------------*/
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write_reg(g, HX8347D_REG_STBAH, 0x00); /* Reset Power Control 1 */
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write_reg(g, HX8347D_REG_STBAL, 0x20); /* Power Control 2 */
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write_reg(g, HX8347D_REG_PTBAH, 0x0C); /* Power Control 1 */
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write_reg(g, HX8347D_REG_PTBAL, 0xC4); /* Power Control 2 */
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write_reg(g, HX8347D_REG_OPONN, 0x40); /* Source OPON_N */
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write_reg(g, HX8347D_REG_OPONI, 0x38); /* Source OPON_I */
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write_reg(g, HX8347D_REG_DC2, 0xA3); /* Display Control 2 */
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/* Power On sequence ---------------------------------------------------------*/
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write_reg(g, HX8347D_REG_PWC2, 0x1B); /* Power Control 2 */
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write_reg(g, HX8347D_REG_PWC1, 0x01); /* Power Control 1 */
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write_reg(g, HX8347D_REG_VMH, 0x2F); /* Vcom Control 2 */
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write_reg(g, HX8347D_REG_VML, 0x57); /* Vcom Control 3 */
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write_reg(g, HX8347D_REG_VMF, 0x8D); /* Vcom Control 1 */
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/* Gamma settings -----------------------------------------------------------*/
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write_reg(g, HX8347D_REG_VRP0, 0x01); // default setup
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write_reg(g, HX8347D_REG_VRP1, 0x0e); //
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write_reg(g, HX8347D_REG_VRP2, 0x11); //
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write_reg(g, HX8347D_REG_VRP3, 0x1a); //
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write_reg(g, HX8347D_REG_VRP4, 0x18); //
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write_reg(g, HX8347D_REG_VRP5, 0x24); //
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write_reg(g, HX8347D_REG_PRP0, 0x15); //
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write_reg(g, HX8347D_REG_PRP1, 0x65); //
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write_reg(g, HX8347D_REG_PKP0, 0x0b); //
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write_reg(g, HX8347D_REG_PKP1, 0x18); //
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write_reg(g, HX8347D_REG_PKP2, 0x19); //
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write_reg(g, HX8347D_REG_PKP3, 0x1a); //
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write_reg(g, HX8347D_REG_PKP4, 0x18); //
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write_reg(g, HX8347D_REG_VRN0, 0x1b); //
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write_reg(g, HX8347D_REG_VRN1, 0x27); //
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write_reg(g, HX8347D_REG_VRN2, 0x25); //
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write_reg(g, HX8347D_REG_VRN3, 0x2e); //
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write_reg(g, HX8347D_REG_VRN4, 0x31); //
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write_reg(g, HX8347D_REG_VRN5, 0x3e); //
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write_reg(g, HX8347D_REG_PRN0, 0x1a); //
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write_reg(g, HX8347D_REG_PRN1, 0x6a); //
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write_reg(g, HX8347D_REG_PKN0, 0x07); //
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write_reg(g, HX8347D_REG_PKN1, 0x05); //
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write_reg(g, HX8347D_REG_PKN2, 0x06); //
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write_reg(g, HX8347D_REG_PKN3, 0x0b); //
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write_reg(g, HX8347D_REG_PKN4, 0x14); //
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write_reg(g, HX8347D_REG_CGM, 0xcc); //
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/* Power + Osc ---------------------------------------------------------------*/
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write_reg(g, HX8347D_REG_OSCCH, 0x36); /* OSC Control 1 */
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write_reg(g, HX8347D_REG_OSCCL, 0x01); /* OSC Control 2 */
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write_reg(g, HX8347D_REG_DMODE, 0x00); /* Display Mode Control */
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write_reg(g, HX8347D_REG_PWC6, 0x88); /* Power Control 6 */
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gfxSleepMilliseconds(5); /* Delay 5 ms */
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write_reg(g, HX8347D_REG_PWC6, 0x80); /* Power Control 6 */
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gfxSleepMilliseconds(5); /* Delay 5 ms */
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write_reg(g, HX8347D_REG_PWC6, 0x90); /* Power Control 6 */
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gfxSleepMilliseconds(5); /* Delay 5 ms */
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write_reg(g, HX8347D_REG_PWC6, 0xD0); /* Power Control 6 */
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gfxSleepMilliseconds(5); /* Delay 5 ms */
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write_reg(g, HX8347D_REG_COLMOD, 0x05); /* Colmod 16Bit/Pixel */
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write_reg(g, HX8347D_REG_PCH, 0x00); /* Panel Characteristic */
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write_reg(g, HX8347D_REG_DC3, 0x38); /* Display Control 3 */
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gfxSleepMilliseconds(40); /* Delay 40 ms */
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write_reg(g, HX8347D_REG_DC3, 0x3C); /* Display Control 3 */
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write_reg(g, HX8347D_REG_MAC, 0x08); /* Memory access control */
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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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busmode16(g);
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}
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LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
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write_ram16(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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busmode8(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_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, HX8347D_REG_MAC, 0x08); /* Memory access control */
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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, HX8347D_REG_MAC, 0x68); /* Memory access control */
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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, HX8347D_REG_MAC, 0xc8); /* Memory access control */
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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, HX8347D_REG_MAC, 0xa8); /* Memory access control */
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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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