/* * 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/HX8347D/gdisp_lld.c * @brief GDISP Graphics Driver subsystem low level driver source for the HX8347D display. */ #include "gfx.h" #if GFX_USE_GDISP #define GDISP_DRIVER_VMT GDISPVMT_HX8347D #include "drivers/gdisp/HX8347D/gdisp_lld_config.h" #include "src/gdisp/driver.h" #include "board_HX8347D.h" /*===========================================================================*/ /* Driver local definitions. */ /*===========================================================================*/ #ifndef GDISP_SCREEN_HEIGHT #define GDISP_SCREEN_HEIGHT 320 #endif #ifndef GDISP_SCREEN_WIDTH #define GDISP_SCREEN_WIDTH 240 #endif #ifndef GDISP_INITIAL_CONTRAST #define GDISP_INITIAL_CONTRAST 50 #endif #ifndef GDISP_INITIAL_BACKLIGHT #define GDISP_INITIAL_BACKLIGHT 100 #endif /*===========================================================================*/ /* Driver local functions. */ /*===========================================================================*/ #include "../drivers/gdisp/HX8347D/HX8347D.h" #define write_reg(g, reg, data) { write_index(g, reg); write_data(g, data); } static inline void set_viewport(GDisplay* g) { write_reg(g, HX8347D_REG_SCL, g->p.x); write_reg(g, HX8347D_REG_SCH, g->p.x >> 8); write_reg(g, HX8347D_REG_ECL, g->p.x + g->p.cx -1); write_reg(g, HX8347D_REG_ECH, (g->p.x + g->p.cx -1) >> 8); write_reg(g, HX8347D_REG_SPL, g->p.y); write_reg(g, HX8347D_REG_SPH, g->p.y >> 8); write_reg(g, HX8347D_REG_EPL, g->p.y + g->p.cy -1); write_reg(g, HX8347D_REG_EPH, (g->p.y + g->p.cy -1) >> 8); write_index(g, HX8347D_REG_SRAMWC); } /*===========================================================================*/ /* Driver exported functions. */ /*===========================================================================*/ LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { // No private area for this controller g->priv = 0; // Initialise the board interface init_board(g); // Hardware reset setpin_reset(g, TRUE); gfxSleepMilliseconds(1); setpin_reset(g, FALSE); gfxSleepMilliseconds(5); // Get the bus for the following initialisation commands acquire_bus(g); /* Start Initial Sequence ----------------------------------------------------*/ write_reg(g, HX8347D_REG_STBAH, 0x00); /* Reset Power Control 1 */ write_reg(g, HX8347D_REG_STBAL, 0x20); /* Power Control 2 */ write_reg(g, HX8347D_REG_PTBAH, 0x0C); /* Power Control 1 */ write_reg(g, HX8347D_REG_PTBAL, 0xC4); /* Power Control 2 */ write_reg(g, HX8347D_REG_OPONN, 0x40); /* Source OPON_N */ write_reg(g, HX8347D_REG_OPONI, 0x38); /* Source OPON_I */ write_reg(g, HX8347D_REG_DC2, 0xA3); /* Display Control 2 */ /* Power On sequence ---------------------------------------------------------*/ write_reg(g, HX8347D_REG_PWC2, 0x1B); /* Power Control 2 */ write_reg(g, HX8347D_REG_PWC1, 0x01); /* Power Control 1 */ write_reg(g, HX8347D_REG_VMH, 0x2F); /* Vcom Control 2 */ write_reg(g, HX8347D_REG_VML, 0x57); /* Vcom Control 3 */ write_reg(g, HX8347D_REG_VMF, 0x8D); /* Vcom Control 1 */ /* Gamma settings -----------------------------------------------------------*/ write_reg(g, HX8347D_REG_VRP0, 0x01); // default setup write_reg(g, HX8347D_REG_VRP1, 0x0e); // write_reg(g, HX8347D_REG_VRP2, 0x11); // write_reg(g, HX8347D_REG_VRP3, 0x1a); // write_reg(g, HX8347D_REG_VRP4, 0x18); // write_reg(g, HX8347D_REG_VRP5, 0x24); // write_reg(g, HX8347D_REG_PRP0, 0x15); // write_reg(g, HX8347D_REG_PRP1, 0x65); // write_reg(g, HX8347D_REG_PKP0, 0x0b); // write_reg(g, HX8347D_REG_PKP1, 0x18); // write_reg(g, HX8347D_REG_PKP2, 0x19); // write_reg(g, HX8347D_REG_PKP3, 0x1a); // write_reg(g, HX8347D_REG_PKP4, 0x18); // write_reg(g, HX8347D_REG_VRN0, 0x1b); // write_reg(g, HX8347D_REG_VRN1, 0x27); // write_reg(g, HX8347D_REG_VRN2, 0x25); // write_reg(g, HX8347D_REG_VRN3, 0x2e); // write_reg(g, HX8347D_REG_VRN4, 0x31); // write_reg(g, HX8347D_REG_VRN5, 0x3e); // write_reg(g, HX8347D_REG_PRN0, 0x1a); // write_reg(g, HX8347D_REG_PRN1, 0x6a); // write_reg(g, HX8347D_REG_PKN0, 0x07); // write_reg(g, HX8347D_REG_PKN1, 0x05); // write_reg(g, HX8347D_REG_PKN2, 0x06); // write_reg(g, HX8347D_REG_PKN3, 0x0b); // write_reg(g, HX8347D_REG_PKN4, 0x14); // write_reg(g, HX8347D_REG_CGM, 0xcc); // /* Power + Osc ---------------------------------------------------------------*/ write_reg(g, HX8347D_REG_OSCCH, 0x36); /* OSC Control 1 */ write_reg(g, HX8347D_REG_OSCCL, 0x01); /* OSC Control 2 */ write_reg(g, HX8347D_REG_DMODE, 0x00); /* Display Mode Control */ write_reg(g, HX8347D_REG_PWC6, 0x88); /* Power Control 6 */ gfxSleepMilliseconds(5); /* Delay 5 ms */ write_reg(g, HX8347D_REG_PWC6, 0x80); /* Power Control 6 */ gfxSleepMilliseconds(5); /* Delay 5 ms */ write_reg(g, HX8347D_REG_PWC6, 0x90); /* Power Control 6 */ gfxSleepMilliseconds(5); /* Delay 5 ms */ write_reg(g, HX8347D_REG_PWC6, 0xD0); /* Power Control 6 */ gfxSleepMilliseconds(5); /* Delay 5 ms */ write_reg(g, HX8347D_REG_COLMOD, 0x05); /* Colmod 16Bit/Pixel */ write_reg(g, HX8347D_REG_PCH, 0x00); /* Panel Characteristic */ write_reg(g, HX8347D_REG_DC3, 0x38); /* Display Control 3 */ gfxSleepMilliseconds(40); /* Delay 40 ms */ write_reg(g, HX8347D_REG_DC3, 0x3C); /* Display Control 3 */ write_reg(g, HX8347D_REG_MAC, 0x08); /* Memory access control */ // Finish Init post_init_board(g); // Release the bus release_bus(g); /* Turn on the backlight */ set_backlight(g, GDISP_INITIAL_BACKLIGHT); /* 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_STREAM_WRITE LLDSPEC void gdisp_lld_write_start(GDisplay *g) { acquire_bus(g); set_viewport(g); busmode16(g); } LLDSPEC void gdisp_lld_write_color(GDisplay *g) { write_ram16(g, gdispColor2Native(g->p.color)); } LLDSPEC void gdisp_lld_write_stop(GDisplay *g) { busmode8(g); release_bus(g); } #endif #if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL LLDSPEC void gdisp_lld_control(GDisplay *g) { switch(g->p.x) { case GDISP_CONTROL_ORIENTATION: if (g->g.Orientation == (orientation_t)g->p.ptr) return; switch((orientation_t)g->p.ptr) { case GDISP_ROTATE_0: acquire_bus(g); write_reg(g, HX8347D_REG_MAC, 0x08); /* Memory access control */ release_bus(g); g->g.Height = GDISP_SCREEN_HEIGHT; g->g.Width = GDISP_SCREEN_WIDTH; break; case GDISP_ROTATE_90: acquire_bus(g); write_reg(g, HX8347D_REG_MAC, 0x68); /* Memory access control */ release_bus(g); g->g.Height = GDISP_SCREEN_WIDTH; g->g.Width = GDISP_SCREEN_HEIGHT; break; case GDISP_ROTATE_180: acquire_bus(g); write_reg(g, HX8347D_REG_MAC, 0xc8); /* Memory access control */ release_bus(g); g->g.Height = GDISP_SCREEN_HEIGHT; g->g.Width = GDISP_SCREEN_WIDTH; break; case GDISP_ROTATE_270: acquire_bus(g); write_reg(g, HX8347D_REG_MAC, 0xa8); /* Memory access control */ release_bus(g); 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_BACKLIGHT: if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100; set_backlight(g, (unsigned)g->p.ptr); g->g.Backlight = (unsigned)g->p.ptr; return; default: return; } } #endif #endif /* GFX_USE_GDISP */