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ugfx/drivers/gdisp/RA8875/gdisp_lld.c
Joel Bodenmann 6107cd7918 Added RA8875 GDISP driver
2013-06-22 03:09:45 +02:00

461 lines
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/*
* 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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