diff options
Diffstat (limited to 'drivers/gdisp/RA6963/gdisp_lld_RA6963.c')
| -rwxr-xr-x | drivers/gdisp/RA6963/gdisp_lld_RA6963.c | 407 |
1 files changed, 407 insertions, 0 deletions
diff --git a/drivers/gdisp/RA6963/gdisp_lld_RA6963.c b/drivers/gdisp/RA6963/gdisp_lld_RA6963.c new file mode 100755 index 00000000..bad7f38d --- /dev/null +++ b/drivers/gdisp/RA6963/gdisp_lld_RA6963.c @@ -0,0 +1,407 @@ +/*
+ * 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://ugfx.org/license.html
+ */
+/* Robert Offner 2017
+ * This is a driver for the RA6963 or T6963 Displays.
+ * It should work with displays up to 240 pixel in width and 64 pixel in height
+ * ATTENTION some newer displays on ebay look like T6963 Type but they're not!
+ * They use a new controller: ST7920. These are easy to identify: NO CS pin but
+ * a PSB Pin which switches from parallel to serial communication mode.
+ * If it cost less than 10.- it is probably a ST7920.
+ *
+ * Version: 0.1
+ *
+ * History:
+ *
+ * v0.1 Initial Release
+ * .) tested with readback and without on a 72MHz STM32F103. Display ws a 128x64
+ * type Graphic LCD (Looks like KS0108 Types). STREAM_READ is not implemented.
+ */
+#include "gfx.h"
+
+#if GFX_USE_GDISP
+#define GDISP_DRIVER_VMT GDISPVMT_RA6963
+
+#include "gdisp_lld_config.h"
+#include "src/gdisp/gdisp_driver.h"
+
+/*===========================================================================*/
+/* 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
+#include "board_RA6963.h"
+
+// RA6963 Commands
+//Register Setting
+#define RA6963_SET_CURSOR_POINTER 0x21
+#define RA6963_SET_OFFSET_REGISTER 0x22
+#define RA6963_SET_ADDRESS_POINTER 0x24
+//Set Control Word
+#define RA6963_SET_TEXT_HOME_ADDRESS 0x40
+#define RA6963_SET_TEXT_AREA 0x41
+#define RA6963_SET_GRAPHIC_HOME_ADDRESS 0x42
+#define RA6963_SET_GRAPHIC_AREA 0x43
+//Mode Set
+#define RA6963_MODE_SET 0x80
+#define RA6963_MODE_OR 0x00
+#define RA6963_MODE_XOR 0x01
+#define RA6963_MODE_AND 0x03
+#define RA6963_MODE_TEXT_ATTRIBUTE 0x04
+#define RA6963_MODE_INTERNAL_CGROM 0x00
+#define RA6963_MODE_EXTERNAL_CGRAM 0x08
+//Display Mode
+#define RA6963_DISPLAY_MODE 0x90
+#define RA6963_CURSOR_BLINK_ON 0x01
+#define RA6963_CURSOR_DISPLAY_ON 0x02
+#define RA6963_TEXT_DISPLAY_ON 0x04
+#define RA6963_GRAPHIC_DISPLAY_ON 0x08
+//Cursor Pattern Select
+#define RA6963_CURSOR_PATTERN_SELECT 0xA0
+#define RA6963_CURSOR_1_LINE 0x00
+#define RA6963_CURSOR_2_LINE 0x01
+#define RA6963_CURSOR_3_LINE 0x02
+#define RA6963_CURSOR_4_LINE 0x03
+#define RA6963_CURSOR_5_LINE 0x04
+#define RA6963_CURSOR_6_LINE 0x05
+#define RA6963_CURSOR_7_LINE 0x06
+#define RA6963_CURSOR_8_LINE 0x07
+//Data Read/Write
+#define RA6963_DATA_WRITE_AND_INCREMENT 0xC0
+#define RA6963_DATA_READ_AND_INCREMENT 0xC1
+#define RA6963_DATA_WRITE_AND_DECREMENT 0xC2
+#define RA6963_DATA_READ_AND_DECREMENT 0xC3
+#define RA6963_DATA_WRITE_AND_NONVARIALBE 0xC4
+#define RA6963_DATA_READ_AND_NONVARIABLE 0xC5
+//Data auto Read/Write
+#define RA6963_SET_DATA_AUTO_WRITE 0xB0
+#define RA6963_SET_DATA_AUTO_READ 0xB1
+#define RA6963_AUTO_RESET 0xB2
+//Screen Peek
+#define RA6963_SCREEN_PEEK 0xE0
+//Screen copy
+#define RA6963_SCREEN_COPY 0xE8
+// Status Register Bits
+#define RA6963_STATUS_BUSY1 0x01
+#define RA6963_STATUS_BUSY2 0x02
+#define RA6963_STATUS_DARRDY 0x04
+#define RA6963_STATUS_DAWRDY 0x08
+
+#ifndef GDISP_SCREEN_HEIGHT
+ #define GDISP_SCREEN_HEIGHT 64
+#endif
+#ifndef GDISP_SCREEN_WIDTH
+ #define GDISP_SCREEN_WIDTH 128
+#endif
+
+#define RA6963_FONT_WIDTH 8
+
+#define RA6963_GRAPHIC_AREA (GDISP_SCREEN_WIDTH / RA6963_FONT_WIDTH) //16
+#define RA6963_TEXT_AREA (GDISP_SCREEN_WIDTH / RA6963_FONT_WIDTH) //16
+#define RA6963_GRAPHIC_SIZE (RA6963_GRAPHIC_AREA * GDISP_SCREEN_HEIGHT) //1024
+#define RA6963_TEXT_SIZE (RA6963_TEXT_AREA * (GDISP_SCREEN_HEIGHT/8))//128
+//#define RA6963_TEXT_HOME 0
+//#define RA6963_GRAPHIC_HOME (RA6963_TEXT_HOME + RA6963_TEXT_SIZE) //128
+#define RA6963_GRAPHIC_HOME 0
+#define RA6963_TEXT_HOME (RA6963_GRAPHIC_HOME + RA6963_GRAPHIC_SIZE)
+//#define RA6963_OFFSET_REGISTER 2
+
+#if (RA6963_NEED_READ == FALSE)
+#define BUFFSZ (RA6963_GRAPHIC_SIZE)
+#define RAM(g) ((uint8_t *)g->priv)
+#define POS (((g->p.x) / RA6963_FONT_WIDTH) + ((g->p.y) * RA6963_GRAPHIC_AREA))
+#endif
+#ifndef GDISP_INITIAL_CONTRAST
+#define GDISP_INITIAL_CONTRAST 50
+#endif
+#ifndef GDISP_INITIAL_BACKLIGHT
+#define GDISP_INITIAL_BACKLIGHT 100
+#endif
+
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+#ifndef write_data_repeat
+#define write_data_repeat(g, data, count) { int i; for (i = 0; i < count; ++i) write_data (g, data); }
+#endif
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
+#if (RA6963_NEED_READ == FALSE)
+ // The private area is the display surface.
+ g->priv = gfxAlloc(BUFFSZ);
+#else
+ g->priv = 0;
+#endif
+ // Initialise the board interface
+ init_board(g);
+
+#if RA6963_HAS_RESET //Make Hardware Reset
+ setpin_reset(g, TRUE);
+ gfxSleepMilliseconds(100);
+ setpin_reset(g, FALSE);
+#endif
+ gfxSleepMilliseconds(50);
+ //RA6963 needs Data first THEN command!
+
+ write_data(g, (uint8_t)RA6963_GRAPHIC_HOME); //0
+ write_data(g, (uint8_t)(RA6963_GRAPHIC_HOME>>8)); //0
+ write_cmd(g, RA6963_SET_GRAPHIC_HOME_ADDRESS); //0x42
+
+ write_data(g, (uint8_t)RA6963_GRAPHIC_AREA); //16
+ write_data(g, 0); //0
+ write_cmd(g, RA6963_SET_GRAPHIC_AREA); //0x43
+
+ write_data(g, (uint8_t)RA6963_TEXT_HOME); //0x00
+ write_data(g, (uint8_t)(RA6963_TEXT_HOME>>8)); //0x04 = 0x400
+ write_cmd(g, RA6963_SET_TEXT_HOME_ADDRESS); //0x40
+
+ write_data(g, (uint8_t)RA6963_TEXT_AREA); //16
+ write_data(g, (uint8_t)(RA6963_TEXT_AREA>>8)); //0
+ write_cmd(g, RA6963_SET_TEXT_AREA); //0x41
+
+/* write_data(g, (uint8_t)RA6963_OFFSET_REGISTER);
+ write_data(g, 0);
+ write_cmd(g, RA6963_SET_OFFSET_REGISTER);*/
+
+ write_data(g, 0x00);
+ write_data(g, 0x00);
+ write_cmd(g, RA6963_SET_ADDRESS_POINTER);
+
+ write_data(g, 0x00);
+ write_data(g, 0x00);
+ write_cmd(g, RA6963_SET_CURSOR_POINTER);
+
+
+ //write_cmd(g, RA6963_CURSOR_PATTERN_SELECT | RA6963_CURSOR_1_LINE);
+ write_cmd(g, RA6963_MODE_SET | RA6963_MODE_OR);
+ //write_cmd(g, RA6963_DISPLAY_MODE | RA6963_TEXT_DISPLAY_ON | RA6963_GRAPHIC_DISPLAY_ON);
+ write_cmd(g, RA6963_DISPLAY_MODE | RA6963_GRAPHIC_DISPLAY_ON);
+
+ // Finish Init
+ post_init_board(g);
+#if RA6963_NEED_BACKLIGHT
+ // Turn on the back-light
+ set_backlight(g, GDISP_INITIAL_BACKLIGHT);
+#endif
+ // Initialise the GDISP structure
+ g->g.Width = GDISP_SCREEN_WIDTH;
+ g->g.Height = GDISP_SCREEN_HEIGHT;
+ g->g.Orientation = GDISP_ROTATE_0;
+ g->g.Powermode = powerOn;
+ g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
+ g->g.Contrast = GDISP_INITIAL_CONTRAST;
+
+ return TRUE;
+}
+
+static void set_viewport(GDisplay *g) {
+ if ((g->p.x >= GDISP_SCREEN_WIDTH) || (g->p.y >= GDISP_SCREEN_HEIGHT))
+ return; // 0 + ( x / 8 ) + ( y * 16 )
+ //uint16_t addr = (RA6963_GRAPHIC_HOME + ((g->p.x) / RA6963_FONT_WIDTH) + ((g->p.y) * RA6963_GRAPHIC_AREA));
+ uint16_t addr = (RA6963_GRAPHIC_HOME + ((g->p.x >> 3) + (g->p.y << 4)));
+#warning "check function set_viewport about the shift operations if you change the resolution!"
+ write_data(g, (uint8_t)addr);
+ write_data(g, (uint8_t)(addr>>8));
+ write_cmd(g, RA6963_SET_ADDRESS_POINTER);
+}
+
+LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
+ uint8_t temp;
+
+#if (RA6963_NEED_READ == FALSE)
+ temp = RAM(g)[POS];
+#else
+ temp = read_data(g);
+#endif
+
+ if (g->p.color != White) {
+ temp |= (1 << (RA6963_FONT_WIDTH - 1 - ((g->p.x) % RA6963_FONT_WIDTH)));
+ }
+ else {
+ temp &= ~(1 << (RA6963_FONT_WIDTH - 1 - ((g->p.x) % RA6963_FONT_WIDTH)));
+ }
+
+ write_data(g, temp);
+#if (RA6963_NEED_READ == FALSE)
+ RAM(g)[POS] = temp;
+#endif
+ //write_cmd(g, RA6963_DATA_WRITE_AND_INCREMENT);
+ write_cmd(g, RA6963_DATA_WRITE_AND_NONVARIALBE);
+
+}
+
+LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
+ set_viewport(g);
+ gdisp_lld_write_color(g);
+}
+
+#if GDISP_HARDWARE_STREAM_WRITE
+LLDSPEC void gdisp_lld_write_start(GDisplay *g) {
+ //acquire_bus(g);
+ set_viewport(g);
+}
+
+LLDSPEC void gdisp_lld_write_stop(GDisplay *g) {
+ //release_bus(g);
+}
+#endif
+
+#if GDISP_HARDWARE_STREAM_READ
+LLDSPEC void gdisp_lld_read_start(GDisplay *g) {
+ acquire_bus(g);
+ set_viewport(g);
+ setreadmode(g);
+ dummy_read(g);
+}
+
+LLDSPEC color_t gdisp_lld_read_color(GDisplay *g) {
+ uint16_t data;
+
+ data = read_data(g);
+ return gdispNative2Color(data);
+}
+
+LLDSPEC void gdisp_lld_read_stop(GDisplay *g) {
+ setwritemode(g);
+ release_bus(g);
+}
+#endif
+
+#if GDISP_HARDWARE_FILLS
+LLDSPEC void gdisp_lld_fill_area(GDisplay *g) {
+ uint8_t data, j;
+ set_viewport(g);
+
+ if (g->p.color != White) {
+ data = 0xFF; // set dot
+ }
+ else {
+ data = 0; // clr dot
+ }
+ for (j=0; j < (g->p.cy)/8; j++) {
+ write_data_repeat(g, data, (g->p.cx));
+ (g->p.cy) +=8;
+ set_viewport(g);
+ }
+
+}
+#endif // GDISP_HARDWARE_FILLS
+
+#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
+LLDSPEC void gdisp_lld_control(GDisplay *g) {
+ switch(g->p.x) {
+ case GDISP_CONTROL_POWER:
+ if (g->g.Powermode == (powermode_t)g->p.ptr)
+ return;
+
+ switch((powermode_t)g->p.ptr) {
+ case powerOff:
+ acquire_bus(g);
+ write_index(g, 0x28);
+ gfxSleepMilliseconds(10);
+ write_index(g, 0x10);
+ release_bus(g);
+ break;
+
+ case powerOn:
+ acquire_bus(g);
+ write_index(g, 0x11);
+ gfxSleepMilliseconds(120);
+ write_index(g, 0x29);
+ release_bus(g);
+ if (g->g.Powermode != powerSleep)
+ gdisp_lld_init(g);
+ break;
+
+ case powerSleep:
+ acquire_bus(g);
+ write_index(g, 0x28);
+ gfxSleepMilliseconds(10);
+ write_index(g, 0x10);
+ release_bus(g);
+ break;
+
+ default:
+ return;
+ }
+
+ g->g.Powermode = (powermode_t)g->p.ptr;
+ return;
+
+ case GDISP_CONTROL_ORIENTATION:
+ if (g->g.Orientation == (orientation_t)g->p.ptr)
+ return;
+
+ switch((orientation_t)g->p.ptr) {
+ case GDISP_ROTATE_0:
+ acquire_bus(g);
+
+ write_index(g, 0x36);
+ write_data(g, 0x08);
+
+ release_bus(g);
+ g->g.Height = GDISP_SCREEN_HEIGHT;
+ g->g.Width = GDISP_SCREEN_WIDTH;
+ break;
+
+ case GDISP_ROTATE_90:
+ acquire_bus(g);
+
+ write_index(g, 0x36);
+ write_data(g, 0x68);
+
+ release_bus(g);
+ g->g.Height = GDISP_SCREEN_WIDTH;
+ g->g.Width = GDISP_SCREEN_HEIGHT;
+ break;
+
+ case GDISP_ROTATE_180:
+ acquire_bus(g);
+
+ write_index(g, 0x36);
+ write_data(g, 0xC8);
+
+ release_bus(g);
+ g->g.Height = GDISP_SCREEN_HEIGHT;
+ g->g.Width = GDISP_SCREEN_WIDTH;
+ break;
+
+ case GDISP_ROTATE_270:
+ acquire_bus(g);
+
+ write_index(g, 0x36);
+ write_data(g, 0xA8);
+
+ release_bus(g);
+ g->g.Height = GDISP_SCREEN_WIDTH;
+ g->g.Width = GDISP_SCREEN_HEIGHT;
+ break;
+
+ default:
+ return;
+ }
+
+ g->g.Orientation = (orientation_t)g->p.ptr;
+ return;
+
+ default:
+ return;
+ }
+}
+#endif
+
+#endif /* GFX_USE_GDISP */
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