diff options
Diffstat (limited to 'drivers/gdisp/S6D1121/gdisp_lld.c')
| -rw-r--r-- | drivers/gdisp/S6D1121/gdisp_lld.c | 571 |
1 files changed, 571 insertions, 0 deletions
diff --git a/drivers/gdisp/S6D1121/gdisp_lld.c b/drivers/gdisp/S6D1121/gdisp_lld.c new file mode 100644 index 00000000..0d856c79 --- /dev/null +++ b/drivers/gdisp/S6D1121/gdisp_lld.c @@ -0,0 +1,571 @@ +/*
+ 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/S6D1121/gdisp_lld.c
+ * @brief GDISP Graphics Driver subsystem low level driver source for the S6d1121 display.
+ *
+ * @addtogroup GDISP
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+#include "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. */
+/*===========================================================================*/
+
+#if defined(GDISP_SCREEN_HEIGHT)
+ #warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
+ #undef GISP_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 320
+#define GDISP_SCREEN_WIDTH 240
+
+#define GDISP_INITIAL_CONTRAST 50
+#define GDISP_INITIAL_BACKLIGHT 100
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+#if defined(GDISP_USE_CUSTOM_BOARD) && GDISP_USE_CUSTOM_BOARD
+ /* Include the user supplied board definitions */
+ #include "gdisp_lld_board.h"
+#elif defined(BOARD_OLIMEX_STM32_E407)
+ #include "gdisp_lld_board_olimex_e407.h"
+#else
+ #include "gdisp_lld_board.h"
+#endif
+
+/* Some common routines and macros */
+#define write_reg(reg, data) { write_index(reg); write_data(data); }
+#define stream_start() write_index(0x0022);
+#define stream_stop()
+#define delay(us) chThdSleepMicroseconds(us)
+#define delayms(ms) chThdSleepMilliseconds(ms)
+
+static __inline void set_cursor(coord_t x, coord_t y) {
+ /* R20h - 8 bit
+ * R21h - 9 bit
+ */
+ switch(GDISP.Orientation) {
+ case GDISP_ROTATE_0:
+ write_reg(0x0020, x & 0x00FF);
+ write_reg(0x0021, y & 0x01FF);
+ break;
+ case GDISP_ROTATE_90:
+ /* Note X has already been mirrored, so we do it directly */
+ write_reg(0x0020, y & 0x00FF);
+ write_reg(0x0021, x & 0x01FF);
+ break;
+ case GDISP_ROTATE_180:
+ write_reg(0x0020, (GDISP_SCREEN_WIDTH - 1 - x) & 0x00FF);
+ write_reg(0x0021, (GDISP_SCREEN_HEIGHT - 1 - y) & 0x01FF);
+ break;
+ case GDISP_ROTATE_270:
+ write_reg(0x0020, (GDISP_SCREEN_WIDTH - 1 - y) & 0x00FF);
+ write_reg(0x0021, (GDISP_SCREEN_HEIGHT - 1 - x) & 0x01FF);
+ break;
+ }
+}
+
+static __inline void set_viewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
+ /* HSA / HEA are 8 bit
+ * VSA / VEA are 9 bit
+ * use masks 0x00FF and 0x01FF to enforce this
+ */
+
+ switch(GDISP.Orientation) {
+ case GDISP_ROTATE_0:
+ write_reg(0x46, (((x + cx - 1) << 8) & 0xFF00 ) |
+ (x & 0x00FF));
+
+ write_reg(0x48, y & 0x01FF);
+ write_reg(0x47, (y + cy - 1) & 0x01FF);
+ break;
+ case GDISP_ROTATE_90:
+ write_reg(0x46, (((y + cy - 1) << 8) & 0xFF00) |
+ (y & 0x00FF));
+
+ write_reg(0x48, x & 0x01FF);
+ write_reg(0x47, (x + cx - 1) & 0x01FF);
+ break;
+ case GDISP_ROTATE_180:
+ write_reg(0x46, (((GDISP_SCREEN_WIDTH - x - 1) & 0x00FF) << 8) |
+ ((GDISP_SCREEN_WIDTH - (x + cx)) & 0x00FF));
+ write_reg(0x48, (GDISP_SCREEN_HEIGHT - (y + cy)) & 0x01FF);
+ write_reg(0x47, (GDISP_SCREEN_HEIGHT- y - 1) & 0x01FF);
+ break;
+ case GDISP_ROTATE_270:
+ write_reg(0x46, (((GDISP_SCREEN_WIDTH - y - 1) & 0x00FF) << 8) |
+ ((GDISP_SCREEN_WIDTH - (y + cy)) & 0x00FF));
+ write_reg(0x48, (GDISP_SCREEN_HEIGHT - (x + cx)) & 0x01FF);
+ write_reg(0x47, (GDISP_SCREEN_HEIGHT - x - 1) & 0x01FF);
+ break;
+ }
+
+ set_cursor(x, y);
+}
+
+static __inline void reset_viewport(void) {
+ switch(GDISP.Orientation) {
+ case GDISP_ROTATE_0:
+ case GDISP_ROTATE_180:
+ set_viewport(0, 0, GDISP_SCREEN_WIDTH, GDISP_SCREEN_HEIGHT);
+ break;
+ case GDISP_ROTATE_90:
+ case GDISP_ROTATE_270:
+ set_viewport(0, 0, GDISP_SCREEN_HEIGHT, GDISP_SCREEN_WIDTH);
+ break;
+ }
+}
+
+bool_t lld_gdisp_init(void) {
+ /* initialize the hardware */
+ init_board();
+
+ /* Hardware reset */
+ setpin_reset(TRUE);
+ delayms(20);
+ setpin_reset(TRUE);
+ delayms(20);
+
+ /* Get the bus for the following initialisation commands */
+ acquire_bus();
+
+ write_reg(0x11,0x2004);
+ write_reg(0x13,0xCC00);
+ write_reg(0x15,0x2600);
+ write_reg(0x14,0x252A);
+ write_reg(0x12,0x0033);
+ write_reg(0x13,0xCC04);
+
+ delayms(1);
+
+ write_reg(0x13,0xCC06);
+
+ delayms(1);
+
+ write_reg(0x13,0xCC4F);
+
+ delayms(1);
+
+ write_reg(0x13,0x674F);
+ write_reg(0x11,0x2003);
+
+ delayms(1);
+
+ // Gamma Setting
+ write_reg(0x30,0x2609);
+ write_reg(0x31,0x242C);
+ write_reg(0x32,0x1F23);
+ write_reg(0x33,0x2425);
+ write_reg(0x34,0x2226);
+ write_reg(0x35,0x2523);
+ write_reg(0x36,0x1C1A);
+ write_reg(0x37,0x131D);
+ write_reg(0x38,0x0B11);
+ write_reg(0x39,0x1210);
+ write_reg(0x3A,0x1315);
+ write_reg(0x3B,0x3619);
+ write_reg(0x3C,0x0D00);
+ write_reg(0x3D,0x000D);
+
+ write_reg(0x16,0x0007);
+ write_reg(0x02,0x0013);
+ write_reg(0x03,0x0003);
+ write_reg(0x01,0x0127);
+
+ delayms(1);
+
+ write_reg(0x08,0x0303);
+ write_reg(0x0A,0x000B);
+ write_reg(0x0B,0x0003);
+ write_reg(0x0C,0x0000);
+ write_reg(0x41,0x0000);
+ write_reg(0x50,0x0000);
+ write_reg(0x60,0x0005);
+ write_reg(0x70,0x000B);
+ write_reg(0x71,0x0000);
+ write_reg(0x78,0x0000);
+ write_reg(0x7A,0x0000);
+ write_reg(0x79,0x0007);
+ write_reg(0x07,0x0051);
+
+ delayms(1);
+
+ write_reg(0x07,0x0053);
+ write_reg(0x79,0x0000);
+
+ reset_viewport();
+ set_backlight(GDISP_INITIAL_BACKLIGHT);
+
+ /* Now initialise the GDISP structure */
+ GDISP.Width = GDISP_SCREEN_WIDTH;
+ GDISP.Height = GDISP_SCREEN_HEIGHT;
+ GDISP.Orientation = GDISP_ROTATE_0;
+ GDISP.Powermode = powerOn;
+ GDISP.Backlight = 100;
+ GDISP.Contrast = 50;
+ #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
+ GDISP.clipx0 = 0;
+ GDISP.clipy0 = 0;
+ GDISP.clipx1 = GDISP.Width;
+ GDISP.clipy1 = GDISP.Height;
+ #endif
+ return TRUE;
+}
+
+/**
+ * @brief Draws a pixel on the display.
+ *
+ * @param[in] x X location of the pixel
+ * @param[in] y Y location of the pixel
+ * @param[in] color The color of the pixel
+ *
+ * @notapi
+ */
+void 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();
+ set_cursor(x, y);
+ write_reg(0x0022, color);
+ release_bus();
+}
+
+/* ---- Optional Routines ---- */
+
+#if GDISP_HARDWARE_CLEARS || defined(__DOXYGEN__)
+ /**
+ * @brief Clear the display.
+ * @note Optional - The high level driver can emulate using software.
+ *
+ * @param[in] color The color of the pixel
+ *
+ * @notapi
+ */
+ void lld_gdisp_clear(color_t color) {
+ unsigned i;
+
+ acquire_bus();
+ set_cursor(0, 0);
+ stream_start();
+
+ for(i = 0; i < GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT; i++)
+ write_data(color);
+
+ stream_stop();
+ release_bus();
+ }
+#endif
+
+#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
+ /**
+ * @brief Fill an area with a color.
+ * @note Optional - The high level driver can emulate using software.
+ *
+ * @param[in] x, y The start filled area
+ * @param[in] cx, cy The width and height to be filled
+ * @param[in] color The color of the fill
+ *
+ * @notapi
+ */
+ void lld_gdisp_fill_area(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
+ unsigned i, area;
+
+ #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
+ if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
+ if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
+ if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
+ if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
+ if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
+ #endif
+
+ area = cx*cy;
+ acquire_bus();
+ set_viewport(x, y, cx, cy);
+ stream_start();
+ for(i = 0; i < area; i++)
+ write_data(color);
+ stream_stop();
+ reset_viewport();
+ release_bus();
+ }
+#endif
+
+#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__)
+ /**
+ * @brief Fill an area with a bitmap.
+ * @note Optional - The high level driver can emulate using software.
+ *
+ * @param[in] x, y The start filled area
+ * @param[in] cx, cy The width and height to be filled
+ * @param[in] srcx, srcy The bitmap position to start the fill from
+ * @param[in] srccx The width of a line in the bitmap.
+ * @param[in] buffer The pixels to use to fill the area.
+ *
+ * @notapi
+ */
+ void 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;
+ unsigned lg;
+
+ #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
+ if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; srcx += GDISP.clipx0 - x; x = GDISP.clipx0; }
+ if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; srcy += GDISP.clipy0 - y; y = GDISP.clipy0; }
+ if (srcx+cx > srccx) cx = srccx - srcx;
+ if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
+ if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
+ if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
+ #endif
+
+ acquire_bus();
+ set_viewport(x, y, cx, cy);
+ stream_start();
+
+ endx = srcx + cx;
+ endy = y + cy;
+ lg = srccx - cx;
+ buffer += srcx + srcy * srccx;
+ for(; y < endy; y++, buffer += lg)
+ for(x=srcx; x < endx; x++)
+ write_data(*buffer++);
+ stream_stop();
+ reset_viewport();
+ release_bus();
+ }
+#endif
+
+#if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD) || defined(__DOXYGEN__)
+ /**
+ * @brief Get the color of a particular pixel.
+ * @note Optional.
+ * @note If x,y is off the screen, the result is undefined.
+ *
+ * @param[in] x, y The start of the text
+ *
+ * @notapi
+ */
+ color_t lld_gdisp_get_pixel_color(coord_t x, coord_t y) {
+ /* This routine is marked "DO NOT USE" in the original
+ * GLCD driver. We just keep our GDISP_HARDWARE_READPIXEL
+ * turned off for now.
+ */
+ color_t color;
+
+ #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
+ if (x < 0 || x >= GDISP.Width || y < 0 || y >= GDISP.Height) return 0;
+ #endif
+
+ aquire_bus();
+ set_cursor(x, y);
+ stream_start();
+
+ color = lld_lcdReadData();
+ color = lld_lcdReadData();
+
+ stream_stop();
+ release_bus();
+
+ return color;
+ }
+#endif
+
+#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) || defined(__DOXYGEN__)
+ /**
+ * @brief Scroll vertically a section of the screen.
+ * @note Optional.
+ * @note If x,y + cx,cy is off the screen, the result is undefined.
+ * @note If lines is >= cy, it is equivelent to a area fill with bgcolor.
+ *
+ * @param[in] x, y The start of the area to be scrolled
+ * @param[in] cx, cy The size of the area to be scrolled
+ * @param[in] lines The number of lines to scroll (Can be positive or negative)
+ * @param[in] bgcolor The color to fill the newly exposed area.
+ *
+ * @notapi
+ */
+ void lld_gdisp_vertical_scroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
+ /* This is marked as "TODO: Test this" in the original GLCD driver.
+ * For now we just leave the GDISP_HARDWARE_SCROLL off.
+ */
+ static color_t buf[((GDISP_SCREEN_HEIGHT > GDISP_SCREEN_WIDTH ) ? GDISP_SCREEN_HEIGHT : GDISP_SCREEN_WIDTH)];
+ coord_t row0, row1;
+ unsigned i, gap, abslines;
+
+ #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
+ if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
+ if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
+ if (!lines || cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
+ if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
+ if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
+ #endif
+
+ abslines = lines < 0 ? -lines : lines;
+
+ acquire_bus();
+ if (abslines >= cy) {
+ abslines = cy;
+ gap = 0;
+ } else {
+ gap = cy - abslines;
+ for(i = 0; i < gap; i++) {
+ if(lines > 0) {
+ row0 = y + i + lines;
+ row1 = y + i;
+ } else {
+ row0 = (y - i - 1) + lines;
+ row1 = (y - i - 1);
+ }
+
+ /* read row0 into the buffer and then write at row1*/
+ set_viewport(x, row0, cx, 1);
+ lld_lcdReadStreamStart();
+ lld_lcdReadStream(buf, cx);
+ lld_lcdReadStreamStop();
+
+ set_viewport(x, row1, cx, 1);
+ stream_start();
+ write_data(buf, cx);
+ stream_stop();
+ }
+ }
+
+ /* fill the remaining gap */
+ set_viewport(x, lines > 0 ? (y+gap) : y, cx, abslines);
+ stream_start();
+ gap = cx*abslines;
+ for(i = 0; i < gap; i++) write_data(bgcolor);
+ stream_stop();
+ reset_viewport();
+ release_bus();
+ }
+#endif
+
+#if GDISP_HARDWARE_CONTROL || defined(__DOXYGEN__)
+ /**
+ * @brief Driver Control
+ * @details Unsupported control codes are ignored.
+ * @note The value parameter should always be typecast to (void *).
+ * @note There are some predefined and some specific to the low level driver.
+ * @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t
+ * GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t
+ * GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
+ * that only supports off/on anything other
+ * than zero is on.
+ * GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
+ * GDISP_CONTROL_LLD - Low level driver control constants start at
+ * this value.
+ *
+ * @param[in] what What to do.
+ * @param[in] value The value to use (always cast to a void *).
+ *
+ * @notapi
+ */
+ void lld_gdisp_control(unsigned what, void *value) {
+ switch(what) {
+ case GDISP_CONTROL_POWER:
+ if (GDISP.Powermode == (gdisp_powermode_t)value)
+ return;
+ switch((gdisp_powermode_t)value) {
+ case powerOff:
+ /* Code here */
+ /* break; */
+ case powerOn:
+ /* Code here */
+ /* You may need this ---
+ if (GDISP.Powermode != powerSleep)
+ GDISP_LLD(init();
+ */
+ /* break; */
+ case powerSleep:
+ /* Code here */
+ /* break; */
+ default:
+ return;
+ }
+ GDISP.Powermode = (gdisp_powermode_t)value;
+ return;
+ case GDISP_CONTROL_ORIENTATION:
+ if (GDISP.Orientation == (gdisp_orientation_t)value)
+ return;
+ switch((gdisp_orientation_t)value) {
+ case GDISP_ROTATE_0:
+ write_reg(0x0001,0x0127);
+ write_reg(0x03, 0b0011);
+ GDISP.Height = GDISP_SCREEN_HEIGHT;
+ GDISP.Width = GDISP_SCREEN_WIDTH;
+ break;
+ case GDISP_ROTATE_90:
+ write_reg(0x0001,0x0027);
+ write_reg(0x0003, 0b1011);
+ GDISP.Height = GDISP_SCREEN_WIDTH;
+ GDISP.Width = GDISP_SCREEN_HEIGHT;
+ break;
+ case GDISP_ROTATE_180:
+ write_reg(0x0001,0x0127);
+ write_reg(0x0003, 0b0000);
+ GDISP.Height = GDISP_SCREEN_HEIGHT;
+ GDISP.Width = GDISP_SCREEN_WIDTH;
+ break;
+ case GDISP_ROTATE_270:
+ write_reg(0x0001,0x0027);
+ write_reg(0x0003, 0b1000);
+ GDISP.Height = GDISP_SCREEN_WIDTH;
+ GDISP.Width = GDISP_SCREEN_HEIGHT;
+ break;
+ default:
+ return;
+ }
+ #if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION
+ GDISP.clipx0 = 0;
+ GDISP.clipy0 = 0;
+ GDISP.clipx1 = GDISP.Width;
+ GDISP.clipy1 = GDISP.Height;
+ #endif
+ GDISP.Orientation = (gdisp_orientation_t)value;
+ return;
+/*
+ case GDISP_CONTROL_BACKLIGHT:
+ case GDISP_CONTROL_CONTRAST:
+*/
+ }
+ }
+#endif
+
+#endif /* GFX_USE_GDISP */
+/** @} */
+
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