433 lines
14 KiB
C
433 lines
14 KiB
C
/*
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* This file is subject to the terms of the GFX License, v1.0. 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://chibios-gfx.com/license.html
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*/
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/**
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* @file drivers/gdisp/SSD1963/gdisp_lld.c
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* @brief GDISP Graphics Driver subsystem low level driver source.
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*
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* @addtogroup GDISP
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* @{
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*/
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#include "gfx.h"
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#if GFX_USE_GDISP /*|| defined(__DOXYGEN__)*/
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/* Include the emulation code for things we don't support */
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#include "gdisp/lld/emulation.c"
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#include "ssd1963.h"
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/* All the board specific code should go in these include file so the driver
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* can be ported to another board just by creating a suitable file.
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*/
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#if defined(BOARD_YOURBOARDNAME)
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#include "gdisp_lld_board_yourboardname.h"
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#else
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/* Include the user supplied board definitions */
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#include "gdisp_lld_board.h"
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#endif
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/* ---- Required Routines ---- */
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/*
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The following 2 routines are required.
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All other routines are optional.
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*/
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/**
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* @brief Low level GDISP driver initialisation.
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* @return TRUE if successful, FALSE on error.
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*
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* @notapi
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*/
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bool_t gdisp_lld_init(void) {
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/* Initialise the display */
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init_board();
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write_index(SSD1963_SOFT_RESET);
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gfxSleepMicroseconds(100);
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/* Driver PLL config */
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write_index(SSD1963_SET_PLL_MN);
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write_data(35); // PLLclk = REFclk (10Mhz) * 36 (360Mhz)
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write_data(2); // SYSclk = PLLclk / 3 (120MHz)
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write_data(4); // Apply calculation bit, else it is ignored
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write_index(SSD1963_SET_PLL); // Enable PLL
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write_data(0x01);
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gfxSleepMicroseconds(200);
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write_index(SSD1963_SET_PLL); // Use PLL
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write_data(0x03);
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gfxSleepMicroseconds(200);
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write_index(SSD1963_SOFT_RESET);
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gfxSleepMicroseconds(100);
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/* Screen size */
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write_index(SSD1963_SET_GDISP_MODE);
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// write_data(0x0000);
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write_data(0b00011000); //Enabled dithering
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write_data(0x0000);
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write_data(mHIGH((GDISP_SCREEN_WIDTH+1)));
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write_data((GDISP_SCREEN_WIDTH+1));
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write_data(mHIGH((GDISP_SCREEN_HEIGHT+1)));
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write_data((GDISP_SCREEN_HEIGHT+1));
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write_data(0x0000);
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write_index(SSD1963_SET_PIXEL_DATA_INTERFACE);
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write_data(SSD1963_PDI_16BIT565);
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/* LCD Clock specs */
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write_index(SSD1963_SET_LSHIFT_FREQ);
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write_data((GDISP_FPR >> 16) & 0xFF);
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write_data((GDISP_FPR >> 8) & 0xFF);
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write_data(GDISP_FPR & 0xFF);
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write_index(SSD1963_SET_HORI_PERIOD);
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write_data(mHIGH(SCREEN_HSYNC_PERIOD));
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write_data(mLOW(SCREEN_HSYNC_PERIOD));
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write_data(mHIGH((SCREEN_HSYNC_PULSE + SCREEN_HSYNC_BACK_PORCH)));
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write_data(mLOW((SCREEN_HSYNC_PULSE + SCREEN_HSYNC_BACK_PORCH)));
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write_data(SCREEN_HSYNC_PULSE);
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write_data(0x00);
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write_data(0x00);
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write_data(0x00);
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write_index(SSD1963_SET_VERT_PERIOD);
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write_data(mHIGH(SCREEN_VSYNC_PERIOD));
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write_data(mLOW(SCREEN_VSYNC_PERIOD));
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write_data(mHIGH((SCREEN_VSYNC_PULSE + SCREEN_VSYNC_BACK_PORCH)));
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write_data(mLOW((SCREEN_VSYNC_PULSE + SCREEN_VSYNC_BACK_PORCH)));
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write_data(SCREEN_VSYNC_PULSE);
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write_data(0x00);
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write_data(0x00);
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/* Tear effect indicator ON. This is used to tell the host MCU when the driver is not refreshing the panel (during front/back porch) */
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write_index(SSD1963_SET_TEAR_ON);
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write_data(0x0000);
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/* Turn on */
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write_index(SSD1963_SET_DISPLAY_ON);
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set_backlight(0xE5);//set to 90% brightness
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post_init_board();
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/* Initialise the GDISP structure to match */
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GDISP.Width = GDISP_SCREEN_WIDTH;
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GDISP.Height = GDISP_SCREEN_HEIGHT;
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GDISP.Orientation = GDISP_ROTATE_0;
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GDISP.Powermode = powerOn;
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GDISP.Backlight = 100;
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GDISP.Contrast = 50;
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#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
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GDISP.clipx0 = 0;
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GDISP.clipy0 = 0;
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GDISP.clipx1 = GDISP.Width;
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GDISP.clipy1 = GDISP.Height;
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#endif
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return TRUE;
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}
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void gdisp_lld_setwindow(coord_t x0, coord_t y0, coord_t x1, coord_t y1) {
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/* We don't need to validate here as the LLD routines will validate first.
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*
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* #if GDISP_NEED_VALIDATION
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* if (x0 >= GDISP.Width || y0 >= GDISP.Height || x0 < 0 || y0 < 0) return;
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* else if (x1 >= GDISP.Width || y1 >= GDISP.Height || y1 < 0 || y2 < 0) return;
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* #endif
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*/
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write_index(SSD1963_SET_PAGE_ADDRESS);
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write_data((y0 >> 8) & 0xFF);
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write_data((y0 >> 0) & 0xFF);
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write_data((y1 >> 8) & 0xFF);
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write_data((y1 >> 0) & 0xFF);
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write_index(SSD1963_SET_COLUMN_ADDRESS);
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write_data((x0 >> 8) & 0xFF);
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write_data((x0 >> 0) & 0xFF);
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write_data((x1 >> 8) & 0xFF);
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write_data((x1 >> 0) & 0xFF);
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}
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/**
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* @brief Draws a pixel on the display.
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*
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* @param[in] x X location of the pixel
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* @param[in] y Y location of the pixel
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* @param[in] color The color of the pixel
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*
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* @notapi
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*/
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void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color) {
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#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
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if (x < GDISP.clipx0 || y < GDISP.clipy0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
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#endif
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gdisp_lld_setwindow(x, y, x, y);
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write_index(SSD1963_WRITE_MEMORY_START);
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write_data(color);
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}
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/* ---- Optional Routines ---- */
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#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
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/**
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* @brief Fill an area with a color.
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* @note Optional - The high level driver can emulate using software.
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*
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* @param[in] x, y The start filled area
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* @param[in] cx, cy The width and height to be filled
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* @param[in] color The color of the fill
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*
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* @notapi
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*/
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void gdisp_lld_fill_area(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
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uint32_t area;
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#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
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if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
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if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
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if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
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if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
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if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
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#endif
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area = cx*cy;
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gdisp_lld_setwindow(x, y, x+cx-1, y+cy-1);
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write_index(SSD1963_WRITE_MEMORY_START);
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#if defined(GDISP_USE_FSMC) && defined(GDISP_USE_DMA) && defined(GDISP_DMA_STREAM)
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uint8_t i;
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dmaStreamSetPeripheral(GDISP_DMA_STREAM, &color);
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dmaStreamSetMode(GDISP_DMA_STREAM, STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_HWORD | STM32_DMA_CR_MSIZE_HWORD | STM32_DMA_CR_DIR_M2M);
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for (i = area/65535; i; i--) {
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dmaStreamSetTransactionSize(GDISP_DMA_STREAM, 65535);
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dmaStreamEnable(GDISP_DMA_STREAM);
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dmaWaitCompletion(GDISP_DMA_STREAM);
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}
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dmaStreamSetTransactionSize(GDISP_DMA_STREAM, area%65535);
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dmaStreamEnable(GDISP_DMA_STREAM);
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dmaWaitCompletion(GDISP_DMA_STREAM);
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#else
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uint32_t index;
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for(index = 0; index < area; index++)
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write_data(color);
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#endif //#ifdef GDISP_USE_DMA
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}
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#endif
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#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__)
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/**
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* @brief Fill an area with a bitmap.
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* @note Optional - The high level driver can emulate using software.
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*
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* @param[in] x, y The start filled area
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* @param[in] cx, cy The width and height to be filled
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* @param[in] srcx, srcy The bitmap position to start the fill from
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* @param[in] srccx The width of a line in the bitmap.
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* @param[in] buffer The pixels to use to fill the area.
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*
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* @notapi
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*/
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void gdisp_lld_blit_area_ex(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t srcx, coord_t srcy, coord_t srccx, const pixel_t *buffer) {
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#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
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if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; srcx += GDISP.clipx0 - x; x = GDISP.clipx0; }
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if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; srcy += GDISP.clipy0 - y; y = GDISP.clipy0; }
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if (srcx+cx > srccx) cx = srccx - srcx;
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if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
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if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
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if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
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#endif
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gdisp_lld_setwindow(x, y, x+cx-1, y+cy-1);
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write_index(SSD1963_WRITE_MEMORY_START);
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buffer += srcx + srcy * srccx;
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#if defined(GDISP_USE_FSMC) && defined(GDISP_USE_DMA) && defined(GDISP_DMA_STREAM)
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uint32_t area = cx*cy;
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uint8_t i;
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dmaStreamSetPeripheral(GDISP_DMA_STREAM, buffer);
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dmaStreamSetMode(GDISP_DMA_STREAM, STM32_DMA_CR_PL(0) | STM32_DMA_CR_PINC | STM32_DMA_CR_PSIZE_HWORD | STM32_DMA_CR_MSIZE_HWORD | STM32_DMA_CR_DIR_M2M);
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for (i = area/65535; i; i--) {
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dmaStreamSetTransactionSize(GDISP_DMA_STREAM, 65535);
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dmaStreamEnable(GDISP_DMA_STREAM);
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dmaWaitCompletion(GDISP_DMA_STREAM);
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}
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dmaStreamSetTransactionSize(GDISP_DMA_STREAM, area%65535);
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dmaStreamEnable(GDISP_DMA_STREAM);
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dmaWaitCompletion(GDISP_DMA_STREAM);
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#else
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coord_t endx, endy;
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uint32_t lg;
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endx = srcx + cx;
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endy = y + cy;
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lg = srccx - cx;
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for(; y < endy; y++, buffer += lg)
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for(x=srcx; x < endx; x++)
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write_data(*buffer++);
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#endif //#ifdef GDISP_USE_DMA
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}
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#endif
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#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) || defined(__DOXYGEN__)
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/**
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* @brief Scroll vertically a section of the screen.
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* @note Optional.
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* @note If x,y + cx,cy is off the screen, the result is undefined.
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* @note If lines is >= cy, it is equivelent to a area fill with bgcolor.
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*
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* @param[in] x, y The start of the area to be scrolled
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* @param[in] cx, cy The size of the area to be scrolled
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* @param[in] lines The number of lines to scroll (Can be positive or negative)
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* @param[in] bgcolor The color to fill the newly exposed area.
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*
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* @notapi
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*/
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void gdisp_lld_vertical_scroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
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#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
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if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
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if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
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if (!lines || cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
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if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
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if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
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#endif
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/* NOT IMPLEMENTED YET */
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/*
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uint16_t size = x1 - x0 ;
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write_index(SSD1963_SET_SCROLL_AREA);
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write_data((x0 >> 8) & 0xFF);
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write_data((x0 >> 0) & 0xFF);
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write_data((size >> 8) & 0xFF);
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write_data((size >> 0) & 0xFF);
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write_data(((lcd_height-x1) >> 8) & 0xFF);
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write_data(((lcd_height-x1) >> 0) & 0xFF);
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write_index(SSD1963_SET_SCROLL_START);
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write_data((lines >> 8) & 0xFF);
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write_data((lines >> 0) & 0xFF);
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*/
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}
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#endif
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#if (GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL) || defined(__DOXYGEN__)
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/**
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* @brief Driver Control
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* @details Unsupported control codes are ignored.
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* @note The value parameter should always be typecast to (void *).
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* @note There are some predefined and some specific to the low level driver.
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* @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t
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* GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t
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* GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
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* that only supports off/on anything other
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* than zero is on.
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* GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
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* GDISP_CONTROL_LLD - Low level driver control constants start at
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* this value.
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*
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* @param[in] what What to do.
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* @param[in] value The value to use (always cast to a void *).
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*
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* @notapi
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*/
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void gdisp_lld_control(unsigned what, void *value) {
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/* NOT IMPLEMENTED YET */
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switch(what) {
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case GDISP_CONTROL_POWER:
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if (GDISP.Powermode == (gdisp_powermode_t)value)
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return;
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switch((gdisp_powermode_t)value) {
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case powerOff:
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write_index(SSD1963_EXIT_SLEEP_MODE); // leave sleep mode
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gfxSleepMilliseconds(5);
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write_index(SSD1963_SET_DISPLAY_OFF);
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write_index(SSD1963_SET_DEEP_SLEEP); // enter deep sleep mode
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break;
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case powerOn:
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read_reg(0x0000); gfxSleepMilliseconds(5); // 2x Dummy reads to wake up from deep sleep
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read_reg(0x0000); gfxSleepMilliseconds(5);
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if (GDISP.Powermode != powerSleep)
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gdisp_lld_init();
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write_index(SSD1963_SET_DISPLAY_ON);
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break;
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case powerSleep:
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write_index(SSD1963_SET_DISPLAY_OFF);
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write_index(SSD1963_ENTER_SLEEP_MODE); // enter sleep mode
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gfxSleepMilliseconds(5);
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break;
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default:
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return;
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}
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GDISP.Powermode = (gdisp_powermode_t)value;
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return;
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case GDISP_CONTROL_ORIENTATION:
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if (GDISP.Orientation == (gdisp_orientation_t)value)
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return;
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switch((gdisp_orientation_t)value) {
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case GDISP_ROTATE_0:
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/* Code here */
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GDISP.Height = GDISP_SCREEN_HEIGHT;
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GDISP.Width = GDISP_SCREEN_WIDTH;
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break;
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case GDISP_ROTATE_90:
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/* Code here */
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GDISP.Height = GDISP_SCREEN_WIDTH;
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GDISP.Width = GDISP_SCREEN_HEIGHT;
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break;
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case GDISP_ROTATE_180:
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/* Code here */
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GDISP.Height = GDISP_SCREEN_HEIGHT;
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GDISP.Width = GDISP_SCREEN_WIDTH;
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break;
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case GDISP_ROTATE_270:
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/* Code here */
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GDISP.Height = GDISP_SCREEN_WIDTH;
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GDISP.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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#if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION
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GDISP.clipx0 = 0;
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GDISP.clipy0 = 0;
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GDISP.clipx1 = GDISP.Width;
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GDISP.clipy1 = GDISP.Height;
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#endif
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GDISP.Orientation = (gdisp_orientation_t)value;
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return;
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case GDISP_CONTROL_BACKLIGHT:
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gdisp_lld_bg_dimmer(54 + ((uint8_t)value) << 1);//turn 0..100% in 54..255
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return;
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/*
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case GDISP_CONTROL_CONTRAST:
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*/
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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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/** @} */
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