ce5f3b3d70
Fix screen size to ignore hidden pixels. Add orientation support. Fix bit blitting boundary conditions. Add power modes support. This driver is now fully implemented.
569 lines
20 KiB
C
569 lines
20 KiB
C
/*
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ChibiOS/GFX - Copyright (C) 2012, 2013
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS/GFX.
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ChibiOS/GFX is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/GFX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file drivers/gdisp/Nokia6610GE8/gdisp_lld.c
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* @brief GDISP Graphics Driver subsystem low level driver source for the Nokia6610 GE8 display.
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*
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* @addtogroup GDISP
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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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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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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#include "GE8.h"
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/* This controller is only ever used with a 130 x 130 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_SCREEN_HEIGHT 130
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#define GDISP_SCREEN_WIDTH 130
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#define GDISP_SCAN_LINES 132 /* 130 lines + 2 invisible lines */
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#define GDISP_RAM_X_OFFSET 0 /* Offset in RAM of visible area */
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#define GDISP_RAM_Y_OFFSET 2 /* Offset in RAM of visible area */
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#define GDISP_SLEEP_SIZE 32 /* Sleep mode window lines */
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#define GDISP_SLEEP_POS ((GDISP_SCAN_LINES-GDISP_SLEEP_SIZE)/2)
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#define GDISP_INITIAL_CONTRAST 38
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#define GDISP_INITIAL_BACKLIGHT 100
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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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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#if defined(GDISP_USE_CUSTOM_BOARD) && GDISP_USE_CUSTOM_BOARD
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/* Include the user supplied board definitions */
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#include "gdisp_lld_board.h"
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#elif defined(BOARD_OLIMEX_SAM7_EX256)
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#include "gdisp_lld_board_olimexsam7ex256.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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// Some macros just to make reading the code easier
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#define delayms(ms) chThdSleepMilliseconds(ms)
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#define write_data2(d1, d2) { write_data(d1); write_data(d2); }
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#define write_data3(d1, d2, d3) { write_data(d1); write_data(d2); write_data(d3); }
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#define write_data4(d1, d2, d3, d4) { write_data(d1); write_data(d2); write_data(d3); write_data(d4); }
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#define write_cmd1(cmd, d1) { write_cmd(cmd); write_data(d1); }
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#define write_cmd2(cmd, d1, d2) { write_cmd(cmd); write_data2(d1, d2); }
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#define write_cmd3(cmd, d1, d2, d3) { write_cmd(cmd); write_data3(d1, d2, d3); }
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#define write_cmd4(cmd, d1, d2, d3, d4) { write_cmd(cmd); write_data4(d1, d2, d3, d4); }
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// Set the drawing window on the controller.
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// An inline function has been used here incase the parameters have side effects with the internal calculations.
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static __inline void setviewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
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switch(GDISP.Orientation) {
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case GDISP_ROTATE_0:
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write_cmd2(CASET, GDISP_RAM_X_OFFSET+x, GDISP_RAM_X_OFFSET+x+cx-1); // Column address set
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write_cmd2(PASET, GDISP_RAM_Y_OFFSET+y, GDISP_RAM_Y_OFFSET+y+cy-1); // Page address set
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break;
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case GDISP_ROTATE_90:
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write_cmd2(CASET, GDISP_RAM_X_OFFSET+GDISP.Height-y-cy, GDISP_RAM_X_OFFSET+GDISP.Height-y-1);
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write_cmd2(PASET, GDISP_RAM_Y_OFFSET+x, GDISP_RAM_Y_OFFSET+x+cx-1);
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break;
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case GDISP_ROTATE_180:
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write_cmd2(CASET, GDISP_RAM_X_OFFSET+GDISP.Width-x-cx, GDISP_RAM_X_OFFSET+GDISP.Width-x-1);
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write_cmd2(PASET, GDISP_RAM_Y_OFFSET+GDISP.Height-y-cy, GDISP_RAM_Y_OFFSET+GDISP.Height-y-1);
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break;
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case GDISP_ROTATE_270:
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write_cmd2(CASET, GDISP_RAM_X_OFFSET+y, GDISP_RAM_X_OFFSET+y+cy-1);
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write_cmd2(PASET, GDISP_RAM_Y_OFFSET+GDISP.Width-x-cx, GDISP_RAM_Y_OFFSET+GDISP.Width-x-1);
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break;
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}
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}
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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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/**
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* @brief Low level GDISP driver initialisation.
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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 your display */
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init_board();
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// Hardware reset
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setpin_reset(TRUE);
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delayms(20);
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setpin_reset(FALSE);
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delayms(20);
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// Get the bus for the following initialisation commands
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acquire_bus();
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write_cmd4(DISCTL, 0x00, GDISP_SCAN_LINES/4-1, 0x0A, 0x00); // Display control - How the controller drives the LCD
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// P1: 0x00 = 2 divisions, switching period=8 (default)
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// P2: 0x20 = nlines/4 - 1 = 132/4 - 1 = 32)
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// P3: 0x0A = standard inverse highlight, inversion every frame
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// P4: 0x00 = dispersion on
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write_cmd1(COMSCN, 0x01); // COM scan - How the LCD is connected to the controller
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// P1: 0x01 = Scan 1->80, 160<-81
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write_cmd(OSCON); // Internal oscillator ON
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write_cmd(SLPOUT); // Sleep out
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write_cmd1(PWRCTR, 0x0F); // Power control - reference voltage regulator on, circuit voltage follower on, BOOST ON
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write_cmd3(DATCTL, 0x00, 0x00, 0x02); // Data control
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// P1: 0x00 = page address normal, column address normal, address scan in column direction
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// P2: 0x00 = RGB sequence (default value)
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// P3: 0x02 = 4 bits per colour (Type A)
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write_cmd2(VOLCTR, GDISP_INITIAL_CONTRAST, 0x03); // Voltage control (contrast setting)
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// P1 = Contrast
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// P2 = 3 resistance ratio (only value that works)
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delayms(100); // Allow power supply to stabilise
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write_cmd(DISON); // Turn on the display
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// Release the bus
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release_bus();
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/* Turn on the back-light */
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set_backlight(GDISP_INITIAL_BACKLIGHT);
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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 = GDISP_INITIAL_BACKLIGHT;
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GDISP.Contrast = GDISP_INITIAL_CONTRAST;
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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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/**
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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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acquire_bus();
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setviewport(x, y, 1, 1);
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write_cmd3(RAMWR, 0, (color>>8) & 0x0F, color & 0xFF);
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release_bus();
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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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*
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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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unsigned tuples;
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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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tuples = (cx*cy+1)>>1; // With an odd sized area we over-print by one pixel.
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// This extra pixel overwrites the first pixel (harmless as it is the same colour)
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acquire_bus();
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setviewport(x, y, cx, cy);
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write_cmd(RAMWR);
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while(tuples--)
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write_data3(((color >> 4) & 0xFF), (((color << 4) & 0xF0)|((color >> 8) & 0x0F)), (color & 0xFF));
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release_bus();
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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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*
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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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coord_t lg;
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color_t c1, c2;
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unsigned tuples;
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#if GDISP_PACKED_PIXELS
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unsigned pnum, pstart;
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const uint8_t *p;
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#else
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const pixel_t *p;
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#endif
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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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/* Set up the data window to transfer */
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tuples = (cx * cy + 1)>>1;
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acquire_bus();
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setviewport(x, y, cx, cy);
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write_cmd(RAMWR);
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/*
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* Due to the way the Nokia6610 handles a decrementing column or page,
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* we have to make adjustments as to where it is actually drawing from in the bitmap.
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* For example, for 90 degree rotation the column is decremented on each
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* memory write. The controller always starts with column 0 and then decrements
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* to column cx-1, cx-2 etc. We therefore have to write-out the last bitmap line first.
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*/
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switch(GDISP.Orientation) {
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case GDISP_ROTATE_0: x = 0; y = 0; break;
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case GDISP_ROTATE_90: x = 0; y = cy-1; break;
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case GDISP_ROTATE_180: x = cx-1; y = cy-1; break;
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case GDISP_ROTATE_270: x = cx-1; y = 0; break;
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}
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#if !GDISP_PACKED_PIXELS
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// Although this controller uses packed pixels we support unpacked pixel
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// formats in this blit by packing the data as we feed it to the controller.
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lg = srccx - cx; // The buffer gap between lines
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buffer += srcy * srccx + srcx; // The buffer start position
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p = buffer + srccx*y + x; // Adjustment for controller craziness
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while(tuples--) {
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/* Get a pixel */
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c1 = *p++;
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/* Check for line or buffer wrapping */
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if (++x >= cx) {
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x = 0;
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p += lg;
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if (++y >= cy) {
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y = 0;
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p = buffer;
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}
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}
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/* Get the next pixel */
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c2 = *p++;
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/* Check for line or buffer wrapping */
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if (++x >= cx) {
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x = 0;
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p += lg;
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if (++y >= cy) {
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y = 0;
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p = buffer;
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}
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}
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/* Write the pair of pixels to the display */
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write_data3(((c1 >> 4) & 0xFF), (((c1 << 4) & 0xF0)|((c2 >> 8) & 0x0F)), (c2 & 0xFF));
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}
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#else
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// Although this controller uses packed pixels, we may have to feed it into
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// the controller with different packing to the source bitmap
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// There are 2 pixels per 3 bytes
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#if !GDISP_PACKED_LINES
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srccx = (srccx + 1) & ~1;
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#endif
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pstart = srcy * srccx + srcx; // The starting pixel number
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buffer = (const pixel_t)(((const uint8_t *)buffer) + ((pstart>>1) * 3)); // The buffer start position
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lg = ((srccx-cx)>>1)*3; // The buffer gap between lines
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pnum = pstart + srccx*y + x; // Adjustment for controller craziness
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p = ((const uint8_t *)buffer) + (((srccx*y + x)>>1)*3); // Adjustment for controller craziness
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while (tuples--) {
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/* Get a pixel */
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switch(pnum++ & 1) {
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case 0: c1 = (((color_t)p[0]) << 4)|(((color_t)p[1])>>4); break;
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case 1: c1 = (((color_t)p[1]&0x0F) << 8)|((color_t)p[1]); p += 3; break;
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}
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/* Check for line or buffer wrapping */
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if (++x >= cx) {
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x = 0;
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p += lg;
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pnum += srccx - cx;
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if (++y >= cy) {
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y = 0;
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p = (const uint8_t *)buffer;
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pnum = pstart;
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}
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}
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/* Get the next pixel */
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switch(pnum++ & 1) {
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case 0: c1 = (((color_t)p[0]) << 4)|(((color_t)p[1])>>4); break;
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case 1: c1 = (((color_t)p[1]&0x0F) << 8)|((color_t)p[1]); p += 3; break;
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}
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/* Check for line or buffer wrapping */
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if (++x >= cx) {
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x = 0;
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p += lg;
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pnum += srccx - cx;
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if (++y >= cy) {
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y = 0;
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p = (const uint8_t *)buffer;
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pnum = pstart;
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}
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}
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/* Write the pair of pixels to the display */
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write_data3(((c1 >> 4) & 0xFF), (((c1 << 4) & 0xF0)|((c2 >> 8) & 0x0F)), (c2 & 0xFF));
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}
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#endif
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/* All done */
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release_bus();
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}
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#endif
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#if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD)
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/**
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* @brief Get the color of a particular pixel.
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* @note If x,y is off the screen, the result is undefined.
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*
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* @param[in] x, y The start of the text
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*
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* @notapi
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*/
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color_t gdisp_lld_get_pixel_color(coord_t x, coord_t y) {
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/* NOT IMPLEMENTED */
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/* This controller does not support reading back over the SPI interface.
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* Additionally, the Olimex board doesn't even connect the pin.
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*/
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}
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#endif
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#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL)
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/**
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* @brief Scroll vertically a section of the screen.
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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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/* NOT IMPLEMENTED */
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/**
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* The hardware is capable of doing full width vertical scrolls aligned
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* on a 4 line boundary however that is not sufficient to support this routine.
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*
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* We also can't manually do read/modify scrolling because we can't read in SPI mode.
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*/
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}
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#endif
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#if 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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/* The hardware is capable of supporting...
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* GDISP_CONTROL_POWER - supported
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* GDISP_CONTROL_ORIENTATION - supported
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* GDISP_CONTROL_BACKLIGHT - supported
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* GDISP_CONTROL_CONTRAST - supported
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*/
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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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acquire_bus();
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switch((gdisp_powermode_t)value) {
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case powerOff:
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set_backlight(0); // Turn off the backlight
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write_cmd(DISOFF); // Turn off the display
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write_cmd1(PWRCTR, 0x00); // Power control - all off
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write_cmd(SLPIN); // Sleep in
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write_cmd(OSCOFF); // Internal oscillator off
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break;
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case powerOn:
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write_cmd(OSCON); // Internal oscillator on
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write_cmd(SLPOUT); // Sleep out
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write_cmd1(PWRCTR, 0x0F); // Power control - reference voltage regulator on, circuit voltage follower on, BOOST ON
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write_cmd2(VOLCTR, GDISP.Contrast, 0x03); // Voltage control (contrast setting)
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delayms(100); // Allow power supply to stabilise
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write_cmd(DISON); // Turn on the display
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write_cmd(PTLOUT); // Remove sleep window
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set_backlight(GDISP.Backlight); // Turn on the backlight
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|
break;
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|
case powerSleep:
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|
write_cmd(OSCON); // Internal oscillator on
|
|
write_cmd(SLPOUT); // Sleep out
|
|
write_cmd1(PWRCTR, 0x0F); // Power control - reference voltage regulator on, circuit voltage follower on, BOOST ON
|
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write_cmd2(VOLCTR, GDISP.Contrast, 0x03); // Voltage control (contrast setting)
|
|
delayms(100); // Allow power supply to stabilise
|
|
write_cmd(DISON); // Turn on the display
|
|
write_cmd2(PTLIN, GDISP_SLEEP_POS/4, (GDISP_SLEEP_POS+GDISP_SLEEP_SIZE)/4); // Sleep Window
|
|
set_backlight(GDISP.Backlight); // Turn on the backlight
|
|
break;
|
|
case powerDeepSleep:
|
|
write_cmd(OSCON); // Internal oscillator on
|
|
write_cmd(SLPOUT); // Sleep out
|
|
write_cmd1(PWRCTR, 0x0F); // Power control - reference voltage regulator on, circuit voltage follower on, BOOST ON
|
|
write_cmd2(VOLCTR, GDISP.Contrast, 0x03); // Voltage control (contrast setting)
|
|
delayms(100); // Allow power supply to stabilise
|
|
write_cmd(DISON); // Turn on the display
|
|
write_cmd2(PTLIN, GDISP_SLEEP_POS/4, (GDISP_SLEEP_POS+GDISP_SLEEP_SIZE)/4); // Sleep Window
|
|
set_backlight(0); // Turn off the backlight
|
|
break;
|
|
default:
|
|
release_bus();
|
|
return;
|
|
}
|
|
release_bus();
|
|
GDISP.Powermode = (gdisp_powermode_t)value;
|
|
return;
|
|
case GDISP_CONTROL_ORIENTATION:
|
|
if (GDISP.Orientation == (gdisp_orientation_t)value)
|
|
return;
|
|
acquire_bus();
|
|
switch((gdisp_orientation_t)value) {
|
|
case GDISP_ROTATE_0:
|
|
write_cmd3(DATCTL, 0x00, 0x00, 0x02); // P1: page normal, column normal, scan in column direction
|
|
GDISP.Height = GDISP_SCREEN_HEIGHT;
|
|
GDISP.Width = GDISP_SCREEN_WIDTH;
|
|
break;
|
|
case GDISP_ROTATE_90:
|
|
write_cmd3(DATCTL, 0x06, 0x00, 0x02); // P1: page normal, column reverse, scan in page direction
|
|
GDISP.Height = GDISP_SCREEN_WIDTH;
|
|
GDISP.Width = GDISP_SCREEN_HEIGHT;
|
|
break;
|
|
case GDISP_ROTATE_180:
|
|
write_cmd3(DATCTL, 0x03, 0x00, 0x02); // P1: page reverse, column reverse, scan in column direction
|
|
GDISP.Height = GDISP_SCREEN_HEIGHT;
|
|
GDISP.Width = GDISP_SCREEN_WIDTH;
|
|
break;
|
|
case GDISP_ROTATE_270:
|
|
write_cmd3(DATCTL, 0x05, 0x00, 0x02); // P1: page reverse, column normal, scan in page direction
|
|
GDISP.Height = GDISP_SCREEN_WIDTH;
|
|
GDISP.Width = GDISP_SCREEN_HEIGHT;
|
|
break;
|
|
default:
|
|
release_bus();
|
|
return;
|
|
}
|
|
release_bus();
|
|
#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:
|
|
if ((unsigned)value > 100) value = (void *)100;
|
|
set_backlight((unsigned)value);
|
|
GDISP.Backlight = (unsigned)value;
|
|
return;
|
|
case GDISP_CONTROL_CONTRAST:
|
|
if ((unsigned)value > 100) value = (void *)100;
|
|
acquire_bus();
|
|
write_cmd2(VOLCTR, (unsigned)value, 0x03);
|
|
release_bus();
|
|
GDISP.Contrast = (unsigned)value;
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#endif /* GFX_USE_GDISP */
|
|
/** @} */
|