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path: root/drivers/gdisp/RA8875/gdisp_lld.c
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Diffstat (limited to 'drivers/gdisp/RA8875/gdisp_lld.c')
-rw-r--r--drivers/gdisp/RA8875/gdisp_lld.c460
1 files changed, 460 insertions, 0 deletions
diff --git a/drivers/gdisp/RA8875/gdisp_lld.c b/drivers/gdisp/RA8875/gdisp_lld.c
new file mode 100644
index 00000000..e04e5dba
--- /dev/null
+++ b/drivers/gdisp/RA8875/gdisp_lld.c
@@ -0,0 +1,460 @@
+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ * http://chibios-gfx.com/license.html
+ */
+
+/**
+ * @file drivers/gdisp/RA8875/gdisp_lld.c
+ * @brief GDISP Graphics Driver subsystem low level driver source.
+ *
+ * @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"
+
+#include "ra8875.h"
+
+/* include the board abstraction */
+#include "gdisp_lld_board.h"
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+
+/* ---- Required Routines ---- */
+/*
+ The following 2 routines are required.
+ All other routines are optional.
+*/
+
+/**
+ * @brief Low level GDISP driver initialisation.
+ * @return TRUE if successful, FALSE on error.
+ *
+ * @notapi
+ */
+bool_t gdisp_lld_init(void) {
+ /* Initialise the display */
+ init_board();
+
+ /* soft reset */
+ write_index(0x01);
+ write_data(0x01);
+ write_data(0x00);
+ chThdSleepMilliseconds(1);
+
+ /* Driver PLL config 480x272*/
+ write_index(0x88);
+ write_data(0x08);
+ chThdSleepMilliseconds(1);
+ write_index(0x89);
+ write_data(0x02);
+ chThdSleepMilliseconds(1);
+
+ write_index(0x10); //SYSR bit[4:3]=00 256 color bit[2:1]= 00 8bit MPU interface
+ write_data(0x0F); // if 16bit MCU interface and 65k color display
+
+ write_index(0x04); //set PCLK invers
+ write_data(0x82);
+ chThdSleepMilliseconds(1);
+
+ //Horizontal set
+ write_index(0x14); //HDWR//Horizontal Display Width Setting Bit[6:0]
+ write_data(0x3B);//Horizontal display width(pixels) = (HDWR + 1)*8
+ write_index(0x15); //Horizontal Non-Display Period Fine Tuning Option Register (HNDFTR)
+ write_data(0x00);//Horizontal Non-Display Period Fine Tuning(HNDFT) [3:0]
+ write_index(0x16); //HNDR//Horizontal Non-Display Period Bit[4:0]
+ write_data(0x01);//Horizontal Non-Display Period (pixels) = (HNDR + 1)*8
+ write_index(0x17); //HSTR//HSYNC Start Position[4:0]
+ write_data(0x00);//HSYNC Start Position(PCLK) = (HSTR + 1)*8
+ write_index(0x18); //HPWR//HSYNC Polarity ,The period width of HSYNC.
+ write_data(0x05);//HSYNC Width [4:0] HSYNC Pulse width(PCLK) = (HPWR + 1)*8
+
+ //Vertical set
+ write_index(0x19); //VDHR0 //Vertical Display Height Bit [7:0]
+ write_data(0x0f); //Vertical pixels = VDHR + 1
+ write_index(0x1a); //VDHR1 //Vertical Display Height Bit [8]
+ write_data(0x01); //Vertical pixels = VDHR + 1
+ write_index(0x1b); //VNDR0 //Vertical Non-Display Period Bit [7:0]
+ write_data(0x02); //VSYNC Start Position(PCLK) = (VSTR + 1)
+ write_index(0x1c); //VNDR1 //Vertical Non-Display Period Bit [8]
+ write_data(0x00); //Vertical Non-Display area = (VNDR + 1)
+ write_index(0x1d); //VSTR0 //VSYNC Start Position[7:0]
+ write_data(0x07);//VSYNC Start Position(PCLK) = (VSTR + 1)
+ write_index(0x1e); //VSTR1 //VSYNC Start Position[8]
+ write_data(0x00);//VSYNC Start Position(PCLK) = (VSTR + 1)
+ write_index(0x1f); //VPWR //VSYNC Polarity ,VSYNC Pulse Width[6:0]
+ write_data(0x09); //VSYNC Pulse Width(PCLK) = (VPWR + 1)
+
+ //Active window set
+ //setting active window X
+ write_index(0x30); //Horizontal Start Point 0 of Active Window (HSAW0)
+ write_data(0x00); //Horizontal Start Point of Active Window [7:0]
+ write_index(0x31); //Horizontal Start Point 1 of Active Window (HSAW1)
+ write_data(0x00); //Horizontal Start Point of Active Window [9:8]
+ write_index(0x34); //Horizontal End Point 0 of Active Window (HEAW0)
+ write_data(0xDF); //Horizontal End Point of Active Window [7:0]
+ write_index(0x35); //Horizontal End Point 1 of Active Window (HEAW1)
+ write_data(0x01); //Horizontal End Point of Active Window [9:8]
+
+ //setting active window Y
+ write_index(0x32); //Vertical Start Point 0 of Active Window (VSAW0)
+ write_data(0x00); //Vertical Start Point of Active Window [7:0]
+ write_index(0x33); //Vertical Start Point 1 of Active Window (VSAW1)
+ write_data(0x00); //Vertical Start Point of Active Window [8]
+ write_index(0x36); //Vertical End Point of Active Window 0 (VEAW0)
+ write_data(0x0F); //Vertical End Point of Active Window [7:0]
+ write_index(0x37); //Vertical End Point of Active Window 1 (VEAW1)
+ write_data(0x01); //Vertical End Point of Active Window [8]
+
+ // Display ON
+ write_index(0x01); //PWRR
+ write_data(0x80);
+
+ // GPO0 DISP high
+ write_index(0x13); //GPO
+ write_data(0x01);
+
+ set_backlight(0x80); //set to 90% brightness
+
+ post_init_board();
+
+ /* 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 = 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;
+}
+
+void gdisp_lld_setwindow(coord_t x0, coord_t y0, coord_t x1, coord_t y1) {
+ /* We don't need to validate here as the LLD routines will validate first.
+ *
+ * #if GDISP_NEED_VALIDATION
+ * if (x0 >= GDISP.Width || y0 >= GDISP.Height || x0 < 0 || y0 < 0) return;
+ * else if (x1 >= GDISP.Width || y1 >= GDISP.Height || y1 < 0 || y2 < 0) return;
+ * #endif
+ */
+
+ //setting active window X
+ write_index(0x30); //HSAW0
+ write_data(x0);
+ write_index(0x31); //HSAW1
+ write_data(x0>>8);
+
+ write_index(0x34); //HEAW0
+ write_data(x1);
+ write_index(0x35); //HEAW1
+ write_data(x1>>8);
+
+ //setting active window Y
+ write_index(0x32); //VSAW0
+ write_data(y0);
+ write_index(0x33); //VSAW1
+ write_data(y0>>8);
+
+ write_index(0x36); //VEAW0
+ write_data(y1);
+ write_index(0x37); //VEAW1
+ write_data(y1>>8);
+
+ write_index(0x46);
+ write_data(x0);
+ write_index(0x47);
+ write_data(x0>>8);
+
+ write_index(0x48);
+ write_data(y0);
+ write_index(0x49);
+ write_data(y0>>8);
+}
+
+/**
+ * @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
+
+ gdisp_lld_setwindow(x, y, x, y);
+ write_index(RA8875_WRITE_MEMORY_START);
+ write_data(color);
+}
+
+/* ---- Optional Routines ---- */
+
+#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
+ /**
+ * @brief Fill an area with a color.
+ * @note Optional - The high level driver can emulate using software.
+ *
+ * @param[in] x, y The start filled area
+ * @param[in] cx, cy The width and height to be filled
+ * @param[in] color The color of the fill
+ *
+ * @notapi
+ */
+ void gdisp_lld_fill_area(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
+ uint32_t 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;
+
+ gdisp_lld_setwindow(x, y, x+cx-1, y+cy-1);
+ write_index(RA8875_WRITE_MEMORY_START);
+
+ #if defined(GDISP_USE_FSMC) && defined(GDISP_USE_DMA) && defined(GDISP_DMA_STREAM)
+ uint8_t i;
+ dmaStreamSetPeripheral(GDISP_DMA_STREAM, &color);
+ dmaStreamSetMode(GDISP_DMA_STREAM, STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_HWORD | STM32_DMA_CR_MSIZE_HWORD | STM32_DMA_CR_DIR_M2M);
+ for (i = area/65535; i; i--) {
+ dmaStreamSetTransactionSize(GDISP_DMA_STREAM, 65535);
+ dmaStreamEnable(GDISP_DMA_STREAM);
+ dmaWaitCompletion(GDISP_DMA_STREAM);
+ }
+ dmaStreamSetTransactionSize(GDISP_DMA_STREAM, area%65535);
+ dmaStreamEnable(GDISP_DMA_STREAM);
+ dmaWaitCompletion(GDISP_DMA_STREAM);
+ #else
+ uint32_t index;
+ for(index = 0; index < area; index++)
+ write_data(color);
+ #endif //#ifdef GDISP_USE_DMA
+}
+#endif
+
+#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__)
+ /**
+ * @brief Fill an area with a bitmap.
+ * @note Optional - The high level driver can emulate using software.
+ *
+ * @param[in] x, y The start filled area
+ * @param[in] cx, cy The width and height to be filled
+ * @param[in] srcx, srcy The bitmap position to start the fill from
+ * @param[in] srccx The width of a line in the bitmap.
+ * @param[in] buffer The pixels to use to fill the area.
+ *
+ * @notapi
+ */
+ void gdisp_lld_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) {
+
+ #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
+
+ gdisp_lld_setwindow(x, y, x+cx-1, y+cy-1);
+ write_index(RA8875_WRITE_MEMORY_START);
+
+ buffer += srcx + srcy * srccx;
+
+ #if defined(GDISP_USE_FSMC) && defined(GDISP_USE_DMA) && defined(GDISP_DMA_STREAM)
+ uint32_t area = cx*cy;
+ uint8_t i;
+ dmaStreamSetPeripheral(GDISP_DMA_STREAM, buffer);
+ dmaStreamSetMode(GDISP_DMA_STREAM, STM32_DMA_CR_PL(0) | STM32_DMA_CR_PINC | STM32_DMA_CR_PSIZE_HWORD | STM32_DMA_CR_MSIZE_HWORD | STM32_DMA_CR_DIR_M2M);
+ for (i = area/65535; i; i--) {
+ dmaStreamSetTransactionSize(GDISP_DMA_STREAM, 65535);
+ dmaStreamEnable(GDISP_DMA_STREAM);
+ dmaWaitCompletion(GDISP_DMA_STREAM);
+ }
+ dmaStreamSetTransactionSize(GDISP_DMA_STREAM, area%65535);
+ dmaStreamEnable(GDISP_DMA_STREAM);
+ dmaWaitCompletion(GDISP_DMA_STREAM);
+ #else
+ coord_t endx, endy;
+ uint32_t lg;
+ endx = srcx + cx;
+ endy = y + cy;
+ lg = srccx - cx;
+ for(; y < endy; y++, buffer += lg)
+ for(x=srcx; x < endx; x++)
+ write_data(*buffer++);
+ #endif //#ifdef GDISP_USE_DMA
+ }
+#endif
+
+#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) || defined(__DOXYGEN__)
+ /**
+ * @brief Scroll vertically a section of the screen.
+ * @note Optional.
+ * @note If x,y + cx,cy is off the screen, the result is undefined.
+ * @note If lines is >= cy, it is equivelent to a area fill with bgcolor.
+ *
+ * @param[in] x, y The start of the area to be scrolled
+ * @param[in] cx, cy The size of the area to be scrolled
+ * @param[in] lines The number of lines to scroll (Can be positive or negative)
+ * @param[in] bgcolor The color to fill the newly exposed area.
+ *
+ * @notapi
+ */
+ void gdisp_lld_vertical_scroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
+ #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
+ /* NOT IMPLEMENTED YET */
+
+ /*
+ uint16_t size = x1 - x0 ;
+
+ write_index(SSD1963_SET_SCROLL_AREA);
+ write_data((x0 >> 8) & 0xFF);
+ write_data((x0 >> 0) & 0xFF);
+ write_data((size >> 8) & 0xFF);
+ write_data((size >> 0) & 0xFF);
+ write_data(((lcd_height-x1) >> 8) & 0xFF);
+ write_data(((lcd_height-x1) >> 0) & 0xFF);
+
+ write_index(SSD1963_SET_SCROLL_START);
+ write_data((lines >> 8) & 0xFF);
+ write_data((lines >> 0) & 0xFF);
+ */
+ }
+
+#endif
+
+#if (GDISP_NEED_CONTROL && 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) {
+ /* NOT IMPLEMENTED YET */
+ switch(what) {
+ case GDISP_CONTROL_POWER:
+ if (GDISP.Powermode == (gdisp_powermode_t)value)
+ return;
+ switch((gdisp_powermode_t)value) {
+ case powerOff:
+ write_index(SSD1963_EXIT_SLEEP_MODE); // leave sleep mode
+ chThdSleepMilliseconds(5);
+ write_index(SSD1963_SET_DISPLAY_OFF);
+ write_index(SSD1963_SET_DEEP_SLEEP); // enter deep sleep mode
+ break;
+ case powerOn:
+ read_reg(0x0000); chThdSleepMilliseconds(5); // 2x Dummy reads to wake up from deep sleep
+ read_reg(0x0000); chThdSleepMilliseconds(5);
+ if (GDISP.Powermode != powerSleep)
+ gdisp_lld_init();
+ write_index(SSD1963_SET_DISPLAY_ON);
+
+ break;
+ case powerSleep:
+ write_index(SSD1963_SET_DISPLAY_OFF);
+ write_index(SSD1963_ENTER_SLEEP_MODE); // enter sleep mode
+ chThdSleepMilliseconds(5);
+ 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:
+ /* 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;
+ case GDISP_CONTROL_BACKLIGHT:
+ gdisp_lld_bg_dimmer(54 + ((uint8_t)value) << 1);//turn 0..100% in 54..255
+ return;
+/*
+ case GDISP_CONTROL_CONTRAST:
+*/
+ }
+ }
+#endif
+
+#endif /* GFX_USE_GDISP */
+/** @} */
+
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