diff options
Diffstat (limited to 'drivers/gdisp/Nokia6610GE8/gdisp_lld.c')
| -rw-r--r-- | drivers/gdisp/Nokia6610GE8/gdisp_lld.c | 483 |
1 files changed, 483 insertions, 0 deletions
diff --git a/drivers/gdisp/Nokia6610GE8/gdisp_lld.c b/drivers/gdisp/Nokia6610GE8/gdisp_lld.c new file mode 100644 index 00000000..006c964b --- /dev/null +++ b/drivers/gdisp/Nokia6610GE8/gdisp_lld.c @@ -0,0 +1,483 @@ +/*
+ 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/Nokia6610GE8/gdisp_lld.c
+ * @brief GDISP Graphics Driver subsystem low level driver source for the Nokia6610 GE8 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. */
+/*===========================================================================*/
+
+#include "GE8.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();
+
+ write_cmd3(DISCTL, 0x00, 0x20, 0x00); // Display control
+ // P1: 0x00 = 2 divisions, switching period=8 (default)
+ // P2: 0x20 = nlines/4 - 1 = 132/4 - 1 = 32)
+ // P3: 0x00 = no inversely highlighted lines
+ write_cmd1(COMSCN, 0x01); // COM scan P1: 0x01 = Scan 1->80, 160<-81
+ write_cmd(OSCON); // Internal oscilator ON
+ write_cmd(SLPOUT); // Sleep out
+ write_cmd1(PWRCTR, 0x0F); // Power control - reference voltage regulator on, circuit voltage follower on, BOOST ON
+ write_cmd3(DATCTL, 0x48, 0x00, 0x02); // Data control
+ // P1: 0x01 = page address inverted, column address normal, address scan in column direction
+ // P2: 0x00 = RGB sequence (default value)
+ // P3: 0x02 = Grayscale -> 16 (selects 12-bit color, type A)
+ write_cmd2(VOLCTR, GDISP_INITIAL_CONTRAST, 0x03); // Voltage control (contrast setting)
+ // P1 = Contrast
+ // P2 = 3 resistance ratio (only value that works)
+ delayms(100); // allow power supply to stabilize
+ write_cmd(DISON); // Turn on the display
+
+ // 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_cmd2(VOLCTR, (unsigned)value, 0x03);
+ release_bus();
+ GDISP.Contrast = (unsigned)value;
+ return;
+ }
+ }
+#endif
+
+#endif /* GFX_USE_GDISP */
+/** @} */
|