diff options
Diffstat (limited to 'drivers/gdisp/Nokia6610GE12/gdisp_lld.c')
| -rw-r--r-- | drivers/gdisp/Nokia6610GE12/gdisp_lld.c | 1056 |
1 files changed, 528 insertions, 528 deletions
diff --git a/drivers/gdisp/Nokia6610GE12/gdisp_lld.c b/drivers/gdisp/Nokia6610GE12/gdisp_lld.c index 6ce7b581..ee9a5fc7 100644 --- a/drivers/gdisp/Nokia6610GE12/gdisp_lld.c +++ b/drivers/gdisp/Nokia6610GE12/gdisp_lld.c @@ -1,528 +1,528 @@ -/*
- ChibiOS/GFX - Copyright (C) 2012
- Joel Bodenmann aka Tectu <joel@unormal.org>
-
- 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 <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file drivers/gdisp/Nokia6610GE12/gdisp_lld.c
- * @brief GDISP Graphics Driver subsystem low level driver source for the Nokia6610 GE12 display.
- *
- * @addtogroup GDISP
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-#include "gfx.h"
-
-#if GFX_USE_GDISP /*|| defined(__DOXYGEN__)*/
-
-/* Include the emulation code for things we don't support */
-#include "gdisp/lld/emulation.c"
-
-/*===========================================================================*/
-/* Driver local definitions. */
-/*===========================================================================*/
-
-/* Controller definitions */
-#include "GE12.h"
-
-/* This controller is only ever used with a 132 x 132 display */
-#if defined(GDISP_SCREEN_HEIGHT)
- #warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
- #undef GDISP_SCREEN_HEIGHT
-#endif
-#if defined(GDISP_SCREEN_WIDTH)
- #warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
- #undef GDISP_SCREEN_WIDTH
-#endif
-#define GDISP_SCREEN_HEIGHT 132
-#define GDISP_SCREEN_WIDTH 132
-
-#define GDISP_INITIAL_CONTRAST 38
-#define GDISP_INITIAL_BACKLIGHT 100
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-#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_SAM7_EX256)
- #include "gdisp_lld_board_olimexsam7ex256.h"
-#else
- /* Include the user supplied board definitions */
- #include "gdisp_lld_board.h"
-#endif
-
-// Some macros just to make reading the code easier
-#define delayms(ms) chThdSleepMilliseconds(ms)
-#define write_data2(d1, d2) { write_data(d1); write_data(d2); }
-#define write_data3(d1, d2, d3) { write_data(d1); write_data(d2); write_data(d3); }
-#define write_cmd1(cmd, d1) { write_cmd(cmd); write_data(d1); }
-#define write_cmd2(cmd, d1, d2) { write_cmd(cmd); write_data2(d1, d2); }
-#define write_cmd3(cmd, d1, d2, d3) { write_cmd(cmd); write_data3(d1, d2, d3); }
-
-// A very common thing to do.
-// An inline function has been used here incase the parameters have side effects with the internal calculations.
-static __inline void setviewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
- write_cmd2(CASET, x, x+cx-1); // Column address set
- write_cmd2(PASET, y, y+cy-1); // Page address set
-}
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/* ---- Required Routines ---- */
-/*
- The following 2 routines are required.
- All other routines are optional.
-*/
-
-/**
- * @brief Low level GDISP driver initialization.
- *
- * @notapi
- */
-bool_t lld_gdisp_init(void) {
- /* Initialise your display */
- init_board();
-
- // Hardware reset
- setpin_reset(TRUE);
- delayms(20);
- setpin_reset(FALSE);
- delayms(20);
-
- // Get the bus for the following initialisation commands
- acquire_bus();
-
- // UNTESTED
- #if 1
- write_cmd(SLEEPOUT); // Sleep out
- write_cmd(INVON); // Inversion on: seems to be required for this controller
- write_cmd1(COLMOD, 0x03); // Color Interface Pixel Format - 0x03 = 12 bits-per-pixel
- write_cmd1(MADCTL, 0xC8); // Memory access controler - 0xC0 = mirror x and y, reverse rgb
- write_cmd1(SETCON, GDISP_INITIAL_CONTRAST); // Write contrast
- delayms(20);
- write_cmd(DISPON); // Display On
- #else
- // Alternative
- write_cmd(SOFTRST); // Software Reset
- delayms(20);
- write_cmd(INITESC); // Initial escape
- delayms(20);
- write_cmd1(REFSET, 0x00); // Refresh set
- write_cmd(DISPCTRL); // Set Display control - really 7 bytes of data
- write_data(128); // Set the lenght of one selection term
- write_data(128); // Set N inversion -> no N inversion
- write_data(134); // Set frame frequence and bias rate -> 2 devision of frequency and 1/8 bias, 1/67 duty, 96x67 size
- write_data(84); // Set duty parameter
- write_data(69); // Set duty parameter
- write_data(82); // Set duty parameter
- write_data(67); // Set duty parameter
- write_cmd(GRAYSCALE0); // Grey scale 0 position set - really 15 bytes of data
- write_data(1); // GCP1 - gray lavel to be output when the RAM data is "0001"
- write_data(2); // GCP2 - gray lavel to be output when the RAM data is "0010"
- write_data(4); // GCP3 - gray lavel to be output when the RAM data is "0011"
- write_data(8); // GCP4 - gray lavel to be output when the RAM data is "0100"
- write_data(16); // GCP5 - gray lavel to be output when the RAM data is "0101"
- write_data(30); // GCP6 - gray lavel to be output when the RAM data is "0110"
- write_data(40); // GCP7 - gray lavel to be output when the RAM data is "0111"
- write_data(50); // GCP8 - gray lavel to be output when the RAM data is "1000"
- write_data(60); // GCP9 - gray lavel to be output when the RAM data is "1001"
- write_data(70); // GCP10 - gray lavel to be output when the RAM data is "1010"
- write_data(80); // GCP11 - gray lavel to be output when the RAM data is "1011"
- write_data(90); // GCP12 - gray lavel to be output when the RAM data is "1100"
- write_data(100); // GCP13 - gray lavel to be output when the RAM data is "1101"
- write_data(110); // GCP14 - gray lavel to be output when the RAM data is "1110"
- write_data(127); // GCP15 - gray lavel to be output when the RAM data is "1111"
- write_cmd1(GAMMA, 0x01); // Gamma curve set - select gray scale - GRAYSCALE 0 or GREYSCALE 1 - Select grey scale 0
- write_cmd1(COMMONDRV, 0x00); // Command driver output - Set COM1-COM41 side come first, normal mod
- write_cmd(NORMALMODE); // Set Normal mode (my)
- // write_cmd(INVERSIONOFF); // Inversion off
- write_cmd2(COLADDRSET, 0, 131); // Column address set
- write_cmd2(PAGEADDRSET, 0, 131); // Page address set
- write_cmd1(ACCESSCTRL, 0x40); // Memory access controler - 0x40 horizontal
- // write_data(0x20); // vertical
- write_cmd1(PWRCTRL, 0x04); // Power control - Internal resistance, V1OUT -> high power mode, oscilator devision rate
- write_cmd(SLEEPOUT); // Sleep out
- write_cmd(VOLTCTRL); // Voltage control - voltage control and write contrast define LCD electronic volume
- // write_data(0x7f); // full voltage control
- // write_data(0x03); // must be "1"
- write_cmd1(CONTRAST, GDISP_INITIAL_CONTRAST); // Write contrast
- delayms(20);
- write_cmd(TEMPGRADIENT); // Temperature gradient - really 14 bytes of data
- for(i=0; i<14; i++)
- write_data(0);
- write_cmd(BOOSTVON); // Booster voltage ON
- write_cmd(DISPLAYON); // Finally - Display On
- #endif
-
- // Release the bus
- release_bus();
-
- /* Turn on the back-light */
- set_backlight(GDISP_INITIAL_BACKLIGHT);
-
- /* Initialise the GDISP structure to match */
- GDISP.Width = GDISP_SCREEN_WIDTH;
- GDISP.Height = GDISP_SCREEN_HEIGHT;
- GDISP.Orientation = GDISP_ROTATE_0;
- GDISP.Powermode = powerOn;
- GDISP.Backlight = GDISP_INITIAL_BACKLIGHT;
- GDISP.Contrast = GDISP_INITIAL_CONTRAST;
- #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 lld_gdisp_draw_pixel(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();
- setviewport(x, y, 1, 1);
- write_cmd3(RAMWR, 0, (color>>8) & 0x0F, color & 0xFF);
- release_bus();
-}
-
-/* ---- Optional Routines ---- */
-
-#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
- /**
- * @brief Fill an area with a color.
- *
- * @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 lld_gdisp_fill_area(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
- unsigned i, tuples;
-
- #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
-
- tuples = (cx*cy+1)/2; // With an odd sized area we over-print by one pixel.
- // This extra pixel is ignored by the controller.
-
- acquire_bus();
- setviewport(x, y, cx, cy);
- write_cmd(RAMWR);
- for(i=0; i < tuples; i++)
- write_data3(((color >> 4) & 0xFF), (((color << 4) & 0xF0)|((color >> 8) & 0x0F)), (color & 0xFF));
- release_bus();
- }
-#endif
-
-#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__)
- /**
- * @brief Fill an area with a bitmap.
- *
- * @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 lld_gdisp_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) {
- coord_t endx, endy, lg;
- color_t c1, c2;
- #if GDISP_PACKED_PIXELS
- coord_t pos;
- const uint8_t *p;
- #endif
-
- #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
-
- /* What are our end points */
- endx = srcx + cx;
- endy = y + cy;
-
- acquire_bus();
- setviewport(x, y, cx, cy);
- write_cmd(RAMWR);
-
- #if !GDISP_PACKED_PIXELS
- // Although this controller uses packed pixels we support unpacked pixel
- // formats in this blit by packing the data as we feed it to the controller.
- lg = srccx - cx;
- buffer += srcy * srccx + srcx;
- x = srcx;
- while (1) {
- /* Get a pixel */
- c1 = *buffer++;
- if (++x >= endx) {
- if (++y >= endy) {
- /* Odd pixel at end */
- write_data3(0, ((c1 >> 8) & 0x0F), (c1 & 0xFF));
- break;
- }
- x = srcx;
- buffer += lg;
- }
- /* Get the next pixel */
- c2 = *buffer++;
- write_data3(((c1 >> 4) & 0xFF), (((c1 << 4) & 0xF0)|((c2 >> 8) & 0x0F)), (c2 & 0xFF));
- if (++x >= endx) {
- if (++y >= endy)
- break;
- x = srcx;
- buffer += lg;
- }
- }
-
- #else
-
- // Although this controller uses packed pixels, we may have to feed it into
- // the controller with different packing to the source bitmap
- #if !GDISP_PACKED_LINES
- srccx = (srccx + 1) & ~1;
- #endif
- pos = srcy*srccx;
- lg = (srccx - cx)/2*3;
- p = ((const uint8_t *)buffer) + ((pos+srcx)/2 * 3);
-
- x = srcx;
- while (1) {
- /* Get a pixel */
- switch((pos+x)&1) {
- case 0: c1 = (((color_t)p[0]) << 4)|(((color_t)p[1])>>4); break;
- case 1: c1 = (((color_t)p[1]&0x0F) << 8)|((color_t)p[1]); break;
- }
- if (++x >= endx) {
- if (++y >= endy) {
- /* Odd pixel at end */
- write_data3(0, ((c1 >> 8) & 0x0F), (c1 & 0xFF));
- break;
- }
- x = srcx;
- p += lg;
- pos += srccx;
- }
- /* Get the next pixel */
- switch((pos+x)&1) {
- case 0: c2 = (((color_t)p[0]) << 4)|(((color_t)p[1])>>4); break;
- case 1: c2 = (((color_t)p[1]&0x0F) << 8)|((color_t)p[1]); break;
- }
- write_data3(((c1 >> 4) & 0xFF), (((c1 << 4) & 0xF0)|((c2 >> 8) & 0x0F)), (c2 & 0xFF));
- if (++x >= endx) {
- if (++y >= endy)
- break;
- x = srcx;
- p += lg;
- pos += srccx;
- }
- }
- #endif
- release_bus();
- }
-#endif
-
-#if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD)
- /**
- * @brief Get the color of a particular pixel.
- * @note If x,y is off the screen, the result is undefined.
- *
- * @param[in] x, y The start of the text
- *
- * @notapi
- */
- color_t lld_gdisp_get_pixel_color(coord_t x, coord_t y) {
- /* NOT IMPLEMENTED */
- /* Some board hardware might support this in the future.
- * The Olimex board doesn't.
- */
- }
-#endif
-
-#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL)
- /**
- * @brief Scroll vertically a section of the screen.
- * @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 lld_gdisp_vertical_scroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
- /* NOT IMPLEMENTED */
- /* The hardware seems capable of doing this.
- * It is just really complex so we leave it out for now.
- */
- }
-#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 lld_gdisp_control(unsigned what, void *value) {
- /* The hardware is capable of supporting...
- * GDISP_CONTROL_POWER - not implemented yet
- * GDISP_CONTROL_ORIENTATION - not implemented yet
- * GDISP_CONTROL_BACKLIGHT - supported (the OlimexSAM7EX256 board.h currently only implements off/on although PWM is supported by the hardware)
- * GDISP_CONTROL_CONTRAST - supported
- */
- switch(what) {
-#if 0
- // NOT IMPLEMENTED YET
- 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)
- * lld_gdisp_init();
- */
- break;
- case powerSleep:
- /* Code here */
- break;
- default:
- return;
- }
- GDISP.Powermode = (gdisp_powermode_t)value;
- return;
-#endif
-#if 0
- // NOT IMPLEMENTED YET
- case GDISP_CONTROL_ORIENTATION:
- if (GDISP.Orientation == (gdisp_orientation_t)value)
- return;
- // WriteSpiData(0x48); // no mirror Y (temporary to satisfy Olimex bmptoarray utility)
- // WriteSpiData(0xC8); // restore to (mirror x and y, reverse rgb)
- switch((gdisp_orientation_t)value) {
- case GDISP_ROTATE_0:
- // Code here
- GDISP.Height = GDISP_SCREEN_HEIGHT;
- GDISP.Width = GDISP_SCREEN_WIDTH;
- break;
- case GDISP_ROTATE_90:
- // Code here
- GDISP.Height = GDISP_SCREEN_WIDTH;
- GDISP.Width = GDISP_SCREEN_HEIGHT;
- break;
- case GDISP_ROTATE_180:
- // Code here
- GDISP.Height = GDISP_SCREEN_HEIGHT;
- GDISP.Width = GDISP_SCREEN_WIDTH;
- break;
- case GDISP_ROTATE_270:
- // Code here
- 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;
-#endif
- 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_cmd1(CONTRAST,(unsigned)value);
- release_bus();
- GDISP.Contrast = (unsigned)value;
- return;
- }
- }
-#endif
-
-#endif /* GFX_USE_GDISP */
-/** @} */
+/* + ChibiOS/GFX - Copyright (C) 2012 + Joel Bodenmann aka Tectu <joel@unormal.org> + + 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 <http://www.gnu.org/licenses/>. +*/ + +/** + * @file drivers/gdisp/Nokia6610GE12/gdisp_lld.c + * @brief GDISP Graphics Driver subsystem low level driver source for the Nokia6610 GE12 display. + * + * @addtogroup GDISP + * @{ + */ + +#include "ch.h" +#include "hal.h" +#include "gfx.h" + +#if GFX_USE_GDISP /*|| defined(__DOXYGEN__)*/ + +/* Include the emulation code for things we don't support */ +#include "gdisp/lld/emulation.c" + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +/* Controller definitions */ +#include "GE12.h" + +/* This controller is only ever used with a 132 x 132 display */ +#if defined(GDISP_SCREEN_HEIGHT) + #warning "GDISP: This low level driver does not support setting a screen size. It is being ignored." + #undef GDISP_SCREEN_HEIGHT +#endif +#if defined(GDISP_SCREEN_WIDTH) + #warning "GDISP: This low level driver does not support setting a screen size. It is being ignored." + #undef GDISP_SCREEN_WIDTH +#endif +#define GDISP_SCREEN_HEIGHT 132 +#define GDISP_SCREEN_WIDTH 132 + +#define GDISP_INITIAL_CONTRAST 38 +#define GDISP_INITIAL_BACKLIGHT 100 + +/*===========================================================================*/ +/* Driver exported variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +#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_SAM7_EX256) + #include "gdisp_lld_board_olimexsam7ex256.h" +#else + /* Include the user supplied board definitions */ + #include "gdisp_lld_board.h" +#endif + +// Some macros just to make reading the code easier +#define delayms(ms) chThdSleepMilliseconds(ms) +#define write_data2(d1, d2) { write_data(d1); write_data(d2); } +#define write_data3(d1, d2, d3) { write_data(d1); write_data(d2); write_data(d3); } +#define write_cmd1(cmd, d1) { write_cmd(cmd); write_data(d1); } +#define write_cmd2(cmd, d1, d2) { write_cmd(cmd); write_data2(d1, d2); } +#define write_cmd3(cmd, d1, d2, d3) { write_cmd(cmd); write_data3(d1, d2, d3); } + +// A very common thing to do. +// An inline function has been used here incase the parameters have side effects with the internal calculations. +static __inline void setviewport(coord_t x, coord_t y, coord_t cx, coord_t cy) { + write_cmd2(CASET, x, x+cx-1); // Column address set + write_cmd2(PASET, y, y+cy-1); // Page address set +} + +/*===========================================================================*/ +/* Driver interrupt handlers. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/* ---- Required Routines ---- */ +/* + The following 2 routines are required. + All other routines are optional. +*/ + +/** + * @brief Low level GDISP driver initialization. + * + * @notapi + */ +bool_t gdisp_lld_init(void) { + /* Initialise your display */ + init_board(); + + // Hardware reset + setpin_reset(TRUE); + delayms(20); + setpin_reset(FALSE); + delayms(20); + + // Get the bus for the following initialisation commands + acquire_bus(); + + // UNTESTED + #if 1 + write_cmd(SLEEPOUT); // Sleep out + write_cmd(INVON); // Inversion on: seems to be required for this controller + write_cmd1(COLMOD, 0x03); // Color Interface Pixel Format - 0x03 = 12 bits-per-pixel + write_cmd1(MADCTL, 0xC8); // Memory access controler - 0xC0 = mirror x and y, reverse rgb + write_cmd1(SETCON, GDISP_INITIAL_CONTRAST); // Write contrast + delayms(20); + write_cmd(DISPON); // Display On + #else + // Alternative + write_cmd(SOFTRST); // Software Reset + delayms(20); + write_cmd(INITESC); // Initial escape + delayms(20); + write_cmd1(REFSET, 0x00); // Refresh set + write_cmd(DISPCTRL); // Set Display control - really 7 bytes of data + write_data(128); // Set the lenght of one selection term + write_data(128); // Set N inversion -> no N inversion + write_data(134); // Set frame frequence and bias rate -> 2 devision of frequency and 1/8 bias, 1/67 duty, 96x67 size + write_data(84); // Set duty parameter + write_data(69); // Set duty parameter + write_data(82); // Set duty parameter + write_data(67); // Set duty parameter + write_cmd(GRAYSCALE0); // Grey scale 0 position set - really 15 bytes of data + write_data(1); // GCP1 - gray lavel to be output when the RAM data is "0001" + write_data(2); // GCP2 - gray lavel to be output when the RAM data is "0010" + write_data(4); // GCP3 - gray lavel to be output when the RAM data is "0011" + write_data(8); // GCP4 - gray lavel to be output when the RAM data is "0100" + write_data(16); // GCP5 - gray lavel to be output when the RAM data is "0101" + write_data(30); // GCP6 - gray lavel to be output when the RAM data is "0110" + write_data(40); // GCP7 - gray lavel to be output when the RAM data is "0111" + write_data(50); // GCP8 - gray lavel to be output when the RAM data is "1000" + write_data(60); // GCP9 - gray lavel to be output when the RAM data is "1001" + write_data(70); // GCP10 - gray lavel to be output when the RAM data is "1010" + write_data(80); // GCP11 - gray lavel to be output when the RAM data is "1011" + write_data(90); // GCP12 - gray lavel to be output when the RAM data is "1100" + write_data(100); // GCP13 - gray lavel to be output when the RAM data is "1101" + write_data(110); // GCP14 - gray lavel to be output when the RAM data is "1110" + write_data(127); // GCP15 - gray lavel to be output when the RAM data is "1111" + write_cmd1(GAMMA, 0x01); // Gamma curve set - select gray scale - GRAYSCALE 0 or GREYSCALE 1 - Select grey scale 0 + write_cmd1(COMMONDRV, 0x00); // Command driver output - Set COM1-COM41 side come first, normal mod + write_cmd(NORMALMODE); // Set Normal mode (my) + // write_cmd(INVERSIONOFF); // Inversion off + write_cmd2(COLADDRSET, 0, 131); // Column address set + write_cmd2(PAGEADDRSET, 0, 131); // Page address set + write_cmd1(ACCESSCTRL, 0x40); // Memory access controler - 0x40 horizontal + // write_data(0x20); // vertical + write_cmd1(PWRCTRL, 0x04); // Power control - Internal resistance, V1OUT -> high power mode, oscilator devision rate + write_cmd(SLEEPOUT); // Sleep out + write_cmd(VOLTCTRL); // Voltage control - voltage control and write contrast define LCD electronic volume + // write_data(0x7f); // full voltage control + // write_data(0x03); // must be "1" + write_cmd1(CONTRAST, GDISP_INITIAL_CONTRAST); // Write contrast + delayms(20); + write_cmd(TEMPGRADIENT); // Temperature gradient - really 14 bytes of data + for(i=0; i<14; i++) + write_data(0); + write_cmd(BOOSTVON); // Booster voltage ON + write_cmd(DISPLAYON); // Finally - Display On + #endif + + // Release the bus + release_bus(); + + /* Turn on the back-light */ + set_backlight(GDISP_INITIAL_BACKLIGHT); + + /* Initialise the GDISP structure to match */ + GDISP.Width = GDISP_SCREEN_WIDTH; + GDISP.Height = GDISP_SCREEN_HEIGHT; + GDISP.Orientation = GDISP_ROTATE_0; + GDISP.Powermode = powerOn; + GDISP.Backlight = GDISP_INITIAL_BACKLIGHT; + GDISP.Contrast = GDISP_INITIAL_CONTRAST; + #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_draw_pixel(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(); + setviewport(x, y, 1, 1); + write_cmd3(RAMWR, 0, (color>>8) & 0x0F, color & 0xFF); + release_bus(); +} + +/* ---- Optional Routines ---- */ + +#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__) + /** + * @brief Fill an area with a color. + * + * @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_fill_area(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) { + unsigned i, tuples; + + #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 + + tuples = (cx*cy+1)/2; // With an odd sized area we over-print by one pixel. + // This extra pixel is ignored by the controller. + + acquire_bus(); + setviewport(x, y, cx, cy); + write_cmd(RAMWR); + for(i=0; i < tuples; i++) + write_data3(((color >> 4) & 0xFF), (((color << 4) & 0xF0)|((color >> 8) & 0x0F)), (color & 0xFF)); + release_bus(); + } +#endif + +#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__) + /** + * @brief Fill an area with a bitmap. + * + * @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_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) { + coord_t endx, endy, lg; + color_t c1, c2; + #if GDISP_PACKED_PIXELS + coord_t pos; + const uint8_t *p; + #endif + + #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 + + /* What are our end points */ + endx = srcx + cx; + endy = y + cy; + + acquire_bus(); + setviewport(x, y, cx, cy); + write_cmd(RAMWR); + + #if !GDISP_PACKED_PIXELS + // Although this controller uses packed pixels we support unpacked pixel + // formats in this blit by packing the data as we feed it to the controller. + lg = srccx - cx; + buffer += srcy * srccx + srcx; + x = srcx; + while (1) { + /* Get a pixel */ + c1 = *buffer++; + if (++x >= endx) { + if (++y >= endy) { + /* Odd pixel at end */ + write_data3(0, ((c1 >> 8) & 0x0F), (c1 & 0xFF)); + break; + } + x = srcx; + buffer += lg; + } + /* Get the next pixel */ + c2 = *buffer++; + write_data3(((c1 >> 4) & 0xFF), (((c1 << 4) & 0xF0)|((c2 >> 8) & 0x0F)), (c2 & 0xFF)); + if (++x >= endx) { + if (++y >= endy) + break; + x = srcx; + buffer += lg; + } + } + + #else + + // Although this controller uses packed pixels, we may have to feed it into + // the controller with different packing to the source bitmap + #if !GDISP_PACKED_LINES + srccx = (srccx + 1) & ~1; + #endif + pos = srcy*srccx; + lg = (srccx - cx)/2*3; + p = ((const uint8_t *)buffer) + ((pos+srcx)/2 * 3); + + x = srcx; + while (1) { + /* Get a pixel */ + switch((pos+x)&1) { + case 0: c1 = (((color_t)p[0]) << 4)|(((color_t)p[1])>>4); break; + case 1: c1 = (((color_t)p[1]&0x0F) << 8)|((color_t)p[1]); break; + } + if (++x >= endx) { + if (++y >= endy) { + /* Odd pixel at end */ + write_data3(0, ((c1 >> 8) & 0x0F), (c1 & 0xFF)); + break; + } + x = srcx; + p += lg; + pos += srccx; + } + /* Get the next pixel */ + switch((pos+x)&1) { + case 0: c2 = (((color_t)p[0]) << 4)|(((color_t)p[1])>>4); break; + case 1: c2 = (((color_t)p[1]&0x0F) << 8)|((color_t)p[1]); break; + } + write_data3(((c1 >> 4) & 0xFF), (((c1 << 4) & 0xF0)|((c2 >> 8) & 0x0F)), (c2 & 0xFF)); + if (++x >= endx) { + if (++y >= endy) + break; + x = srcx; + p += lg; + pos += srccx; + } + } + #endif + release_bus(); + } +#endif + +#if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD) + /** + * @brief Get the color of a particular pixel. + * @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_get_pixel_color(coord_t x, coord_t y) { + /* NOT IMPLEMENTED */ + /* Some board hardware might support this in the future. + * The Olimex board doesn't. + */ + } +#endif + +#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) + /** + * @brief Scroll vertically a section of the screen. + * @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_vertical_scroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) { + /* NOT IMPLEMENTED */ + /* The hardware seems capable of doing this. + * It is just really complex so we leave it out for now. + */ + } +#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) { + /* The hardware is capable of supporting... + * GDISP_CONTROL_POWER - not implemented yet + * GDISP_CONTROL_ORIENTATION - not implemented yet + * GDISP_CONTROL_BACKLIGHT - supported (the OlimexSAM7EX256 board.h currently only implements off/on although PWM is supported by the hardware) + * GDISP_CONTROL_CONTRAST - supported + */ + switch(what) { +#if 0 + // NOT IMPLEMENTED YET + 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; +#endif +#if 0 + // NOT IMPLEMENTED YET + case GDISP_CONTROL_ORIENTATION: + if (GDISP.Orientation == (gdisp_orientation_t)value) + return; + // WriteSpiData(0x48); // no mirror Y (temporary to satisfy Olimex bmptoarray utility) + // WriteSpiData(0xC8); // restore to (mirror x and y, reverse rgb) + switch((gdisp_orientation_t)value) { + case GDISP_ROTATE_0: + // Code here + GDISP.Height = GDISP_SCREEN_HEIGHT; + GDISP.Width = GDISP_SCREEN_WIDTH; + break; + case GDISP_ROTATE_90: + // Code here + GDISP.Height = GDISP_SCREEN_WIDTH; + GDISP.Width = GDISP_SCREEN_HEIGHT; + break; + case GDISP_ROTATE_180: + // Code here + GDISP.Height = GDISP_SCREEN_HEIGHT; + GDISP.Width = GDISP_SCREEN_WIDTH; + break; + case GDISP_ROTATE_270: + // Code here + 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; +#endif + 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_cmd1(CONTRAST,(unsigned)value); + release_bus(); + GDISP.Contrast = (unsigned)value; + return; + } + } +#endif + +#endif /* GFX_USE_GDISP */ +/** @} */ |