/* ChibiOS/RT - Copyright (C) 2012 Joel Bodenmann aka Tectu This file is part of ChibiOS/GFX. ChibiOS/GFX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. ChibiOS/GFX is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ /** * @file drivers/gdisp/S6D1121/gdisp_lld.c * @brief GDISP Graphics Driver subsystem low level driver source for the S6d1121 display. * * @addtogroup GDISP * @{ */ #include "ch.h" #include "hal.h" #include "gdisp.h" #if GFX_USE_GDISP /*|| defined(__DOXYGEN__)*/ /* Include the emulation code for things we don't support */ #include "lld/gdisp/emulation.c" /*===========================================================================*/ /* Driver local definitions. */ /*===========================================================================*/ #if defined(GDISP_SCREEN_HEIGHT) #undef GISP_SCREEN_HEIGHT #endif #if defined(GDISP_SCREEN_WIDTH) #undef GDISP_SCREEN_WIDTH #endif #define GDISP_SCREEN_HEIGHT 320 #define GDISP_SCREEN_WIDTH 240 #define GDISP_INITIAL_CONTRAST 50 #define GDISP_INITIAL_BACKLIGHT 100 /*===========================================================================*/ /* Driver local definitions. */ /*===========================================================================*/ #if defined(GDISP_USE_CUSTOM_BOARD) && GDISP_USE_CUSTOM_BOARD /* Include the user supplied board definitions */ #include "gdisp_lld_board.h" #elif defined(BOARD_OLIMEX_STM32_E407) #include "gdisp_lld_board_olimex_e407.h" #else #include "gdisp_lld_board.h" #endif /* Some common routines and macros */ #define write_reg(reg, data) { write_index(reg); write_data(data); } #define stream_start() write_index(0x0022); #define stream_stop() #define delay(us) chThdSleepMicroseconds(us) #define delayms(ms) chThdSleepMilliseconds(ms) static __inline void set_cursor(coord_t x, coord_t y) { /* R20h - 8 bit * R21h - 9 bit */ switch(GDISP.Orientation) { case GDISP_ROTATE_0: write_reg(0x0020, x & 0x00FF); write_reg(0x0021, y & 0x01FF); break; case GDISP_ROTATE_90: /* Note X has already been mirrored, so we do it directly */ write_reg(0x0020, y & 0x00FF); write_reg(0x0021, x & 0x01FF); break; case GDISP_ROTATE_180: write_reg(0x0020, (GDISP_SCREEN_WIDTH - 1 - x) & 0x00FF); write_reg(0x0021, (GDISP_SCREEN_HEIGHT - 1 - y) & 0x01FF); break; case GDISP_ROTATE_270: write_reg(0x0020, (GDISP_SCREEN_WIDTH - 1 - y) & 0x00FF); write_reg(0x0021, (GDISP_SCREEN_HEIGHT - 1 - x) & 0x01FF); break; } } static __inline void set_viewport(coord_t x, coord_t y, coord_t cx, coord_t cy) { /* HSA / HEA are 8 bit * VSA / VEA are 9 bit * use masks 0x00FF and 0x01FF to enforce this */ switch(GDISP.Orientation) { case GDISP_ROTATE_0: write_reg(0x46, (((x + cx - 1) << 8) & 0xFF00 ) | (x & 0x00FF)); write_reg(0x48, y & 0x01FF); write_reg(0x47, (y + cy - 1) & 0x01FF); break; case GDISP_ROTATE_90: write_reg(0x46, (((y + cy - 1) << 8) & 0xFF00) | (y & 0x00FF)); write_reg(0x48, x & 0x01FF); write_reg(0x47, (x + cx - 1) & 0x01FF); break; case GDISP_ROTATE_180: write_reg(0x46, (((GDISP_SCREEN_WIDTH - x - 1) & 0x00FF) << 8) | ((GDISP_SCREEN_WIDTH - (x + cx)) & 0x00FF)); write_reg(0x48, (GDISP_SCREEN_HEIGHT - (y + cy)) & 0x01FF); write_reg(0x47, (GDISP_SCREEN_HEIGHT- y - 1) & 0x01FF); break; case GDISP_ROTATE_270: write_reg(0x46, (((GDISP_SCREEN_WIDTH - y - 1) & 0x00FF) << 8) | ((GDISP_SCREEN_WIDTH - (y + cy)) & 0x00FF)); write_reg(0x48, (GDISP_SCREEN_HEIGHT - (x + cx)) & 0x01FF); write_reg(0x47, (GDISP_SCREEN_HEIGHT - x - 1) & 0x01FF); break; } set_cursor(x, y); } static __inline void reset_viewport(void) { switch(GDISP.Orientation) { case GDISP_ROTATE_0: case GDISP_ROTATE_180: set_viewport(0, 0, GDISP_SCREEN_WIDTH, GDISP_SCREEN_HEIGHT); break; case GDISP_ROTATE_90: case GDISP_ROTATE_270: set_viewport(0, 0, GDISP_SCREEN_HEIGHT, GDISP_SCREEN_WIDTH); break; } } bool_t GDISP_LLD(init)(void) { /* initialize the hardware */ init_board(); /* Hardware reset */ setpin_reset(TRUE); delayms(20); setpin_reset(TRUE); delayms(20); /* Get the bus for the following initialisation commands */ acquire_bus(); write_reg(0x11,0x2004); write_reg(0x13,0xCC00); write_reg(0x15,0x2600); write_reg(0x14,0x252A); write_reg(0x12,0x0033); write_reg(0x13,0xCC04); delayms(1); write_reg(0x13,0xCC06); delayms(1); write_reg(0x13,0xCC4F); delayms(1); write_reg(0x13,0x674F); write_reg(0x11,0x2003); delayms(1); // Gamma Setting write_reg(0x30,0x2609); write_reg(0x31,0x242C); write_reg(0x32,0x1F23); write_reg(0x33,0x2425); write_reg(0x34,0x2226); write_reg(0x35,0x2523); write_reg(0x36,0x1C1A); write_reg(0x37,0x131D); write_reg(0x38,0x0B11); write_reg(0x39,0x1210); write_reg(0x3A,0x1315); write_reg(0x3B,0x3619); write_reg(0x3C,0x0D00); write_reg(0x3D,0x000D); write_reg(0x16,0x0007); write_reg(0x02,0x0013); write_reg(0x03,0x0003); write_reg(0x01,0x0127); delayms(1); write_reg(0x08,0x0303); write_reg(0x0A,0x000B); write_reg(0x0B,0x0003); write_reg(0x0C,0x0000); write_reg(0x41,0x0000); write_reg(0x50,0x0000); write_reg(0x60,0x0005); write_reg(0x70,0x000B); write_reg(0x71,0x0000); write_reg(0x78,0x0000); write_reg(0x7A,0x0000); write_reg(0x79,0x0007); write_reg(0x07,0x0051); delayms(1); write_reg(0x07,0x0053); write_reg(0x79,0x0000); reset_viewport(); set_backlight(GDISP_INITIAL_BACKLIGHT); /* Now initialise the GDISP structure */ GDISP.Width = GDISP_SCREEN_WIDTH; GDISP.Height = GDISP_SCREEN_HEIGHT; GDISP.Orientation = GDISP_ROTATE_0; GDISP.Powermode = powerOn; GDISP.Backlight = 100; GDISP.Contrast = 50; #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP GDISP.clipx0 = 0; GDISP.clipy0 = 0; GDISP.clipx1 = GDISP.Width; GDISP.clipy1 = GDISP.Height; #endif return TRUE; } /** * @brief Draws a pixel on the display. * * @param[in] x X location of the pixel * @param[in] y Y location of the pixel * @param[in] color The color of the pixel * * @notapi */ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) { #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP if (x < GDISP.clipx0 || y < GDISP.clipy0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return; #endif acquire_bus(); set_cursor(x, y); write_reg(0x0022, color); release_bus(); } /* ---- Optional Routines ---- */ #if GDISP_HARDWARE_CLEARS || defined(__DOXYGEN__) /** * @brief Clear the display. * @note Optional - The high level driver can emulate using software. * * @param[in] color The color of the pixel * * @notapi */ void GDISP_LLD(clear)(color_t color) { unsigned i; acquire_bus(); set_cursor(0, 0); stream_start(); for(i = 0; i < GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT; i++) write_data(color); stream_stop(); release_bus(); } #endif #if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__) /** * @brief Fill an area with a color. * @note Optional - The high level driver can emulate using software. * * @param[in] x, y The start filled area * @param[in] cx, cy The width and height to be filled * @param[in] color The color of the fill * * @notapi */ void GDISP_LLD(fillarea)(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) { unsigned i, area; #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; } if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; } if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return; if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x; if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y; #endif area = cx*cy; acquire_bus(); set_viewport(x, y, cx, cy); stream_start(); for(i = 0; i < area; i++) write_data(color); stream_stop(); reset_viewport(); release_bus(); } #endif #if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__) /** * @brief Fill an area with a bitmap. * @note Optional - The high level driver can emulate using software. * * @param[in] x, y The start filled area * @param[in] cx, cy The width and height to be filled * @param[in] srcx, srcy The bitmap position to start the fill from * @param[in] srccx The width of a line in the bitmap. * @param[in] buffer The pixels to use to fill the area. * * @notapi */ void GDISP_LLD(blitareaex)(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) { coord_t endx, endy; unsigned lg; #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; srcx += GDISP.clipx0 - x; x = GDISP.clipx0; } if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; srcy += GDISP.clipy0 - y; y = GDISP.clipy0; } if (srcx+cx > srccx) cx = srccx - srcx; if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return; if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x; if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y; #endif acquire_bus(); set_viewport(x, y, cx, cy); stream_start(); endx = srcx + cx; endy = y + cy; lg = srccx - cx; buffer += srcx + srcy * srccx; for(; y < endy; y++, buffer += lg) for(x=srcx; x < endx; x++) write_data(*buffer++); stream_stop(); reset_viewport(); release_bus(); } #endif #if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD) || defined(__DOXYGEN__) /** * @brief Get the color of a particular pixel. * @note Optional. * @note If x,y is off the screen, the result is undefined. * * @param[in] x, y The start of the text * * @notapi */ color_t GDISP_LLD(getpixelcolor)(coord_t x, coord_t y) { /* This routine is marked "DO NOT USE" in the original * GLCD driver. We just keep our GDISP_HARDWARE_READPIXEL * turned off for now. */ color_t color; #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP if (x < 0 || x >= GDISP.Width || y < 0 || y >= GDISP.Height) return 0; #endif aquire_bus(); set_cursor(x, y); stream_start(); color = lld_lcdReadData(); color = lld_lcdReadData(); stream_stop(); release_bus(); return color; } #endif #if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) || defined(__DOXYGEN__) /** * @brief Scroll vertically a section of the screen. * @note Optional. * @note If x,y + cx,cy is off the screen, the result is undefined. * @note If lines is >= cy, it is equivelent to a area fill with bgcolor. * * @param[in] x, y The start of the area to be scrolled * @param[in] cx, cy The size of the area to be scrolled * @param[in] lines The number of lines to scroll (Can be positive or negative) * @param[in] bgcolor The color to fill the newly exposed area. * * @notapi */ void GDISP_LLD(verticalscroll)(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) { /* This is marked as "TODO: Test this" in the original GLCD driver. * For now we just leave the GDISP_HARDWARE_SCROLL off. */ static color_t buf[((GDISP_SCREEN_HEIGHT > GDISP_SCREEN_WIDTH ) ? GDISP_SCREEN_HEIGHT : GDISP_SCREEN_WIDTH)]; coord_t row0, row1; unsigned i, gap, abslines; #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; } if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; } if (!lines || cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return; if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x; if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y; #endif abslines = lines < 0 ? -lines : lines; acquire_bus(); if (abslines >= cy) { abslines = cy; gap = 0; } else { gap = cy - abslines; for(i = 0; i < gap; i++) { if(lines > 0) { row0 = y + i + lines; row1 = y + i; } else { row0 = (y - i - 1) + lines; row1 = (y - i - 1); } /* read row0 into the buffer and then write at row1*/ set_viewport(x, row0, cx, 1); lld_lcdReadStreamStart(); lld_lcdReadStream(buf, cx); lld_lcdReadStreamStop(); set_viewport(x, row1, cx, 1); stream_start(); write_data(buf, cx); stream_stop(); } } /* fill the remaining gap */ set_viewport(x, lines > 0 ? (y+gap) : y, cx, abslines); stream_start(); gap = cx*abslines; for(i = 0; i < gap; i++) write_data(bgcolor); stream_stop(); reset_viewport(); release_bus(); } #endif #if GDISP_HARDWARE_CONTROL || defined(__DOXYGEN__) /** * @brief Driver Control * @details Unsupported control codes are ignored. * @note The value parameter should always be typecast to (void *). * @note There are some predefined and some specific to the low level driver. * @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t * GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t * GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver * that only supports off/on anything other * than zero is on. * GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100. * GDISP_CONTROL_LLD - Low level driver control constants start at * this value. * * @param[in] what What to do. * @param[in] value The value to use (always cast to a void *). * * @notapi */ void GDISP_LLD(control)(unsigned what, void *value) { switch(what) { case GDISP_CONTROL_POWER: if (GDISP.Powermode == (gdisp_powermode_t)value) return; switch((gdisp_powermode_t)value) { case powerOff: /* Code here */ /* break; */ case powerOn: /* Code here */ /* You may need this --- if (GDISP.Powermode != powerSleep) GDISP_LLD(init(); */ /* break; */ case powerSleep: /* Code here */ /* break; */ default: return; } GDISP.Powermode = (gdisp_powermode_t)value; return; case GDISP_CONTROL_ORIENTATION: if (GDISP.Orientation == (gdisp_orientation_t)value) return; switch((gdisp_orientation_t)value) { case GDISP_ROTATE_0: write_reg(0x0001,0x0127); write_reg(0x03, 0b0011); GDISP.Height = GDISP_SCREEN_HEIGHT; GDISP.Width = GDISP_SCREEN_WIDTH; break; case GDISP_ROTATE_90: write_reg(0x0001,0x0027); write_reg(0x0003, 0b1011); GDISP.Height = GDISP_SCREEN_WIDTH; GDISP.Width = GDISP_SCREEN_HEIGHT; break; case GDISP_ROTATE_180: write_reg(0x0001,0x0127); write_reg(0x0003, 0b0000); GDISP.Height = GDISP_SCREEN_HEIGHT; GDISP.Width = GDISP_SCREEN_WIDTH; break; case GDISP_ROTATE_270: write_reg(0x0001,0x0027); write_reg(0x0003, 0b1000); GDISP.Height = GDISP_SCREEN_WIDTH; GDISP.Width = GDISP_SCREEN_HEIGHT; break; default: return; } #if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION GDISP.clipx0 = 0; GDISP.clipy0 = 0; GDISP.clipx1 = GDISP.Width; GDISP.clipy1 = GDISP.Height; #endif GDISP.Orientation = (gdisp_orientation_t)value; return; /* case GDISP_CONTROL_BACKLIGHT: case GDISP_CONTROL_CONTRAST: */ } } #endif #endif /* GFX_USE_GDISP */ /** @} */