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path: root/drivers/gdisp/ILI9342/gdisp_lld_ILI9342.c
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Diffstat (limited to 'drivers/gdisp/ILI9342/gdisp_lld_ILI9342.c')
-rw-r--r--drivers/gdisp/ILI9342/gdisp_lld_ILI9342.c355
1 files changed, 355 insertions, 0 deletions
diff --git a/drivers/gdisp/ILI9342/gdisp_lld_ILI9342.c b/drivers/gdisp/ILI9342/gdisp_lld_ILI9342.c
new file mode 100644
index 00000000..4560a166
--- /dev/null
+++ b/drivers/gdisp/ILI9342/gdisp_lld_ILI9342.c
@@ -0,0 +1,355 @@
+/*
+ * 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
+ */
+
+#include "gfx.h"
+
+#if GFX_USE_GDISP
+
+#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_DRIVER_VMT GDISPVMT_ILI9342
+#include "drivers/gdisp/ILI9342/gdisp_lld_config.h"
+#include "src/gdisp/gdisp_driver.h"
+
+#include "board_ILI9342.h"
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+ #define GDISP_SCREEN_HEIGHT 240
+ #define GDISP_SCREEN_WIDTH 320
+/*
+#ifndef GDISP_SCREEN_HEIGHT
+ #define GDISP_SCREEN_HEIGHT 320
+#endif
+#ifndef GDISP_SCREEN_WIDTH
+ #define GDISP_SCREEN_WIDTH 240
+#endif
+*/
+#ifndef GDISP_INITIAL_CONTRAST
+ #define GDISP_INITIAL_CONTRAST 50
+#endif
+#ifndef GDISP_INITIAL_BACKLIGHT
+ #define GDISP_INITIAL_BACKLIGHT 100
+#endif
+
+#include "drivers/gdisp/ILI9342/ILI9342.h"
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+// Some common routines and macros
+#define dummy_read(g) { volatile uint16_t dummy; dummy = read_data(g); (void) dummy; }
+#define write_reg(g, reg, data) { write_index(g, reg); write_data(g, data); }
+
+static void set_viewport(GDisplay *g) {
+ write_index(g, 0x2A);
+ write_data(g, (g->p.x >> 8));
+ write_data(g, (uint8_t) g->p.x);
+ write_data(g, (g->p.x + g->p.cx - 1) >> 8);
+ write_data(g, (uint8_t) (g->p.x + g->p.cx - 1));
+
+ write_index(g, 0x2B);
+ write_data(g, (g->p.y >> 8));
+ write_data(g, (uint8_t) g->p.y);
+ write_data(g, (g->p.y + g->p.cy - 1) >> 8);
+ write_data(g, (uint8_t) (g->p.y + g->p.cy - 1));
+}
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
+ // No private area for this controller
+ g->priv = 0;
+
+ // Initialise the board interface
+ init_board(g);
+
+ // Hardware reset
+ setpin_reset(g, TRUE);
+ gfxSleepMilliseconds(20);
+ setpin_reset(g, FALSE);
+ gfxSleepMilliseconds(20);
+
+ // Get the bus for the following initialisation commands
+ acquire_bus(g);
+
+ // Software reset
+ write_index(g, 0x01);
+ gfxSleepMilliseconds(5);
+ write_index(g, 0x28);
+ // display off
+ //---------------------------------------------------------
+ // magic?
+ write_index(g, 0xcf);
+ write_data(g, 0x00);
+ write_data(g, 0x83);
+ write_data(g, 0x30);
+
+ write_index(g, 0xed);
+ write_data(g, 0x64);
+ write_data(g, 0x03);
+ write_data(g, 0x12);
+ write_data(g, 0x81);
+ write_index(g, 0xe8);
+ write_data(g, 0x85);
+ write_data(g, 0x01);
+ write_data(g, 0x79);
+ write_index(g, 0xcb);
+ write_data(g, 0x39);
+ write_data(g, 0x2c);
+ write_data(g, 0x00);
+ write_data(g, 0x34);
+ write_data(g, 0x02);
+ write_index(g, 0xf7);
+ write_data(g, 0x20);
+ write_index(g, 0xea);
+ write_data(g, 0x00);
+ write_data(g, 0x00);
+
+ //------------power control------------------------------
+ write_index(g, 0xc0); //power control
+ write_data(g, 0x26);
+ write_index(g, 0xc1); //power control
+ write_data(g, 0x11);
+
+ //--------------VCOM
+ write_index(g, 0xc5); //vcom control
+ write_data(g, 0x35);//35
+ write_data(g, 0x3e);//3E
+ write_index(g, 0xc7); //vcom control
+ write_data(g, 0xbe); // 0x94
+
+ //------------memory access control------------------------
+ write_index(g, 0x36);
+ write_data(g, 0x08); // scan direction (aka orientation and mirroring)
+ write_index(g, 0x3a); // pixel format set
+ write_data(g, 0x55);//16bit /pixel
+
+ //----------------- frame rate------------------------------
+ write_index(g, 0xb1);
+ // frame rate
+ write_data(g, 0x00);
+ write_data(g, 0x1B); //70
+
+ //----------------Gamma---------------------------------
+ write_index(g, 0xf2); // 3Gamma Function Disable
+ write_data(g, 0x08);
+ write_index(g, 0x26);
+ write_data(g, 0x01); // gamma set 4 gamma curve 01/02/04/08
+
+ write_index(g, 0xE0); //positive gamma correction
+ write_data(g, 0x1f);
+ write_data(g, 0x1a);
+ write_data(g, 0x18);
+ write_data(g, 0x0a);
+ write_data(g, 0x0f);
+ write_data(g, 0x06);
+ write_data(g, 0x45);
+ write_data(g, 0x87);
+ write_data(g, 0x32);
+ write_data(g, 0x0a);
+ write_data(g, 0x07);
+ write_data(g, 0x02);
+ write_data(g, 0x07);
+ write_data(g, 0x05);
+ write_data(g, 0x00);
+ write_index(g, 0xE1); //negamma correction
+ write_data(g, 0x00);
+ write_data(g, 0x25);
+ write_data(g, 0x27);
+ write_data(g, 0x05);
+ write_data(g, 0x10);
+ write_data(g, 0x09);
+ write_data(g, 0x3a);
+ write_data(g, 0x78);
+ write_data(g, 0x4d);
+ write_data(g, 0x05);
+ write_data(g, 0x18);
+ write_data(g, 0x0d);
+ write_data(g, 0x38);
+ write_data(g, 0x3a);
+ write_data(g, 0x1f);
+
+ //--------------ddram ---------------------
+ write_index(g, 0x2a);
+ // column set
+ // size = 239
+ write_data(g, 0x00);
+ write_data(g, 0x00);
+ write_data(g, 0x00);
+ write_data(g, 0xEF);
+ write_index(g, 0x2b);
+ // page address set
+ // size = 319
+ write_data(g, 0x00);
+ write_data(g, 0x00);
+ write_data(g, 0x01);
+ write_data(g, 0x3F);
+ // write_index(g, 0x34);
+ //write_index(g, 0x35);
+ // tearing effect off
+ // tearing effect on
+ // write_index(g, 0xb4); // display inversion
+ // write_data(g, 0x00);
+ write_index(g, 0xb7); //entry mode set
+ write_data(g, 0x07);
+
+ //-----------------display---------------------
+ write_index(g, 0xb6);
+ // display function control
+ write_data(g, 0x0a);
+ write_data(g, 0x82);
+ write_data(g, 0x27);
+ write_data(g, 0x00);
+ write_index(g, 0x11); //sleep out
+ gfxSleepMilliseconds(100);
+ write_index(g, 0x29); // display on
+ gfxSleepMilliseconds(100);
+
+ // Finish Init
+ post_init_board(g);
+
+ // Release the bus
+ release_bus(g);
+
+ /* Turn on the back-light */
+ set_backlight(g, GDISP_INITIAL_BACKLIGHT);
+
+ /* 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;
+}
+
+#if GDISP_HARDWARE_STREAM_WRITE
+ LLDSPEC void gdisp_lld_write_start(GDisplay *g) {
+ acquire_bus(g);
+ set_viewport(g);
+ write_index(g, 0x2C);
+ }
+ LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
+ write_pixel(g, gdispColor2Native(g->p.color));
+ }
+ 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);
+ write_index(g, 0x2E);
+ 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_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:
+ case powerSleep:
+ case powerDeepSleep:
+ acquire_bus(g);
+ write_reg(g, 0x0010, 0x0001); /* enter sleep mode */
+ release_bus(g);
+ break;
+ case powerOn:
+ acquire_bus(g);
+ write_reg(g, 0x0010, 0x0000); /* leave sleep mode */
+ 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_reg(g, 0x36, 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_reg(g, 0x36, 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_reg(g, 0x36, 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_reg(g, 0x36, 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;
+
+ case GDISP_CONTROL_BACKLIGHT:
+ if ((unsigned)g->p.ptr > 100)
+ g->p.ptr = (void *)100;
+ set_backlight(g, (unsigned)g->p.ptr);
+ g->g.Backlight = (unsigned)g->p.ptr;
+ return;
+
+ //case GDISP_CONTROL_CONTRAST:
+ default:
+ return;
+ }
+ }
+#endif
+
+#endif /* GFX_USE_GDISP */
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