Move GDISP drivers to /drivers/ugfx

4 files changed, 397 insertions, 0 deletions

diff --git a/drivers/ugfx/gdisp/st7565ergodox/driver.mk b/drivers/ugfx/gdisp/st7565ergodox/driver.mk
new file mode 100644
index 000000000..401e15e69
--- /dev/null
+++ b/drivers/ugfx/gdisp/st7565ergodox/driver.mk
@@ -0,0 +1,2 @@
+GFXINC += drivers/ugfx/gdisp/st7565ergodox
+GFXSRC += drivers/ugfx/gdisp/st7565ergodox/gdisp_lld_ST7565.c
diff --git a/drivers/ugfx/gdisp/st7565ergodox/gdisp_lld_ST7565.c b/drivers/ugfx/gdisp/st7565ergodox/gdisp_lld_ST7565.c
new file mode 100644
index 000000000..c576280a1
--- /dev/null
+++ b/drivers/ugfx/gdisp/st7565ergodox/gdisp_lld_ST7565.c
@@ -0,0 +1,329 @@
+/*
+ * 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
+
+#define GDISP_DRIVER_VMT			GDISPVMT_ST7565_ERGODOX
+#include "gdisp_lld_config.h"
+#include "src/gdisp/gdisp_driver.h"
+
+#include "board_ST7565.h"
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+#ifndef GDISP_SCREEN_HEIGHT
+#define GDISP_SCREEN_HEIGHT		32
+#endif
+#ifndef GDISP_SCREEN_WIDTH
+#define GDISP_SCREEN_WIDTH		128
+#endif
+#ifndef GDISP_INITIAL_CONTRAST
+#define GDISP_INITIAL_CONTRAST	35
+#endif
+#ifndef GDISP_INITIAL_BACKLIGHT
+#define GDISP_INITIAL_BACKLIGHT	100
+#endif
+
+#define GDISP_FLG_NEEDFLUSH			(GDISP_FLG_DRIVER<<0)
+
+#include "st7565.h"
+
+/*===========================================================================*/
+/* Driver config defaults for backward compatibility.               	     */
+/*===========================================================================*/
+#ifndef ST7565_LCD_BIAS
+#define ST7565_LCD_BIAS         ST7565_LCD_BIAS_7
+#endif
+#ifndef ST7565_ADC
+#define ST7565_ADC              ST7565_ADC_NORMAL
+#endif
+#ifndef ST7565_COM_SCAN
+#define ST7565_COM_SCAN         ST7565_COM_SCAN_INC
+#endif
+#ifndef ST7565_PAGE_ORDER
+#define ST7565_PAGE_ORDER       0,1,2,3
+#endif
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+typedef struct{
+    bool_t buffer2;
+    uint8_t data_pos;
+    uint8_t data[16];
+    uint8_t ram[GDISP_SCREEN_HEIGHT * GDISP_SCREEN_WIDTH / 8];
+}PrivData;
+
+// Some common routines and macros
+#define PRIV(g)                         ((PrivData*)g->priv)
+#define RAM(g)							(PRIV(g)->ram)
+
+static GFXINLINE void write_cmd(GDisplay* g, uint8_t cmd) {
+    PRIV(g)->data[PRIV(g)->data_pos++] = cmd;
+}
+
+static GFXINLINE void flush_cmd(GDisplay* g) {
+    write_data(g, PRIV(g)->data, PRIV(g)->data_pos);
+    PRIV(g)->data_pos = 0;
+}
+
+#define write_cmd2(g, cmd1, cmd2)		{ write_cmd(g, cmd1); write_cmd(g, cmd2); }
+#define write_cmd3(g, cmd1, cmd2, cmd3)	{ write_cmd(g, cmd1); write_cmd(g, cmd2); write_cmd(g, cmd3); }
+
+// Some common routines and macros
+#define delay(us)			gfxSleepMicroseconds(us)
+#define delay_ms(ms)		gfxSleepMilliseconds(ms)
+
+#define xyaddr(x, y)		((x) + ((y)>>3)*GDISP_SCREEN_WIDTH)
+#define xybit(y)			(1<<((y)&7))
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/*
+ * As this controller can't update on a pixel boundary we need to maintain the
+ * the entire display surface in memory so that we can do the necessary bit
+ * operations. Fortunately it is a small display in monochrome.
+ * 64 * 128 / 8 = 1024 bytes.
+ */
+
+LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
+    // The private area is the display surface.
+    g->priv = gfxAlloc(sizeof(PrivData));
+    PRIV(g)->buffer2 = false;
+    PRIV(g)->data_pos = 0;
+
+    // Initialise the board interface
+    init_board(g);
+
+    // Hardware reset
+    setpin_reset(g, TRUE);
+    gfxSleepMilliseconds(20);
+    setpin_reset(g, FALSE);
+    gfxSleepMilliseconds(20);
+    acquire_bus(g);
+    enter_cmd_mode(g);
+
+    write_cmd(g, ST7565_RESET);
+    write_cmd(g, ST7565_LCD_BIAS);
+    write_cmd(g, ST7565_ADC);
+    write_cmd(g, ST7565_COM_SCAN);
+
+    write_cmd(g, ST7565_RESISTOR_RATIO | 0x1);
+    write_cmd2(g, ST7565_CONTRAST, GDISP_INITIAL_CONTRAST);
+
+    // turn on internal power supply (VC=1, VR=1, VF=1)
+    write_cmd(g, ST7565_POWER_CONTROL | 0x07);
+
+    write_cmd(g, ST7565_INVERT_DISPLAY);
+    write_cmd(g, ST7565_ALLON_NORMAL);
+
+    write_cmd(g, ST7565_START_LINE | 0);
+    write_cmd(g, ST7565_RMW);
+    flush_cmd(g);
+
+    // Finish Init
+    post_init_board(g);
+
+    // Release the bus
+    release_bus(g);
+
+    /* 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 = powerOff;
+    g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
+    g->g.Contrast = GDISP_INITIAL_CONTRAST;
+    return TRUE;
+}
+
+#if GDISP_HARDWARE_FLUSH
+LLDSPEC void gdisp_lld_flush(GDisplay *g) {
+    unsigned	p;
+
+    // Don't flush if we don't need it.
+    if (!(g->flags & GDISP_FLG_NEEDFLUSH))
+        return;
+
+    acquire_bus(g);
+    enter_cmd_mode(g);
+    unsigned dstOffset = (PRIV(g)->buffer2 ? 4 : 0);
+    for (p = 0; p < 4; p++) {
+        write_cmd(g, ST7565_PAGE | (p + dstOffset));
+        write_cmd(g, ST7565_COLUMN_MSB | 0);
+        write_cmd(g, ST7565_COLUMN_LSB | 0);
+        write_cmd(g, ST7565_RMW);
+        flush_cmd(g);
+        enter_data_mode(g);
+        write_data(g, RAM(g) + (p*GDISP_SCREEN_WIDTH), GDISP_SCREEN_WIDTH);
+        enter_cmd_mode(g);
+    }
+    unsigned line = (PRIV(g)->buffer2 ? 32 : 0);
+    write_cmd(g, ST7565_START_LINE | line);
+    flush_cmd(g);
+    PRIV(g)->buffer2 = !PRIV(g)->buffer2;
+    release_bus(g);
+
+    g->flags &= ~GDISP_FLG_NEEDFLUSH;
+}
+#endif
+
+#if GDISP_HARDWARE_DRAWPIXEL
+LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
+    coord_t		x, y;
+
+    switch(g->g.Orientation) {
+    default:
+    case GDISP_ROTATE_0:
+        x = g->p.x;
+        y = g->p.y;
+        break;
+    case GDISP_ROTATE_90:
+        x = g->p.y;
+        y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
+        break;
+    case GDISP_ROTATE_180:
+        x = GDISP_SCREEN_WIDTH-1 - g->p.x;
+        y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
+        break;
+    case GDISP_ROTATE_270:
+        x = GDISP_SCREEN_HEIGHT-1 - g->p.y;
+        y = g->p.x;
+        break;
+    }
+    if (gdispColor2Native(g->p.color) != Black)
+        RAM(g)[xyaddr(x, y)] |= xybit(y);
+    else
+        RAM(g)[xyaddr(x, y)] &= ~xybit(y);
+    g->flags |= GDISP_FLG_NEEDFLUSH;
+}
+#endif
+
+#if GDISP_HARDWARE_PIXELREAD
+LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) {
+    coord_t		x, y;
+
+    switch(g->g.Orientation) {
+    default:
+    case GDISP_ROTATE_0:
+        x = g->p.x;
+        y = g->p.y;
+        break;
+    case GDISP_ROTATE_90:
+        x = g->p.y;
+        y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
+        break;
+    case GDISP_ROTATE_180:
+        x = GDISP_SCREEN_WIDTH-1 - g->p.x;
+        y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
+        break;
+    case GDISP_ROTATE_270:
+        x = GDISP_SCREEN_HEIGHT-1 - g->p.y;
+        y = g->p.x;
+        break;
+    }
+    return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? White : Black;
+}
+#endif
+
+LLDSPEC void gdisp_lld_blit_area(GDisplay *g) {
+    uint8_t* buffer = (uint8_t*)g->p.ptr;
+    int linelength = g->p.cx;
+    for (int i = 0; i < g->p.cy; i++) {
+        unsigned dstx = g->p.x;
+        unsigned dsty = g->p.y + i;
+        unsigned srcx = g->p.x1;
+        unsigned srcy = g->p.y1 + i;
+        unsigned srcbit = srcy * g->p.x2 + srcx;
+        for(int j=0; j < linelength; j++) {
+            uint8_t src = buffer[srcbit / 8];
+            uint8_t bit = 7-(srcbit % 8);
+            uint8_t bitset = (src >> bit) & 1;
+            uint8_t* dst = &(RAM(g)[xyaddr(dstx, dsty)]);
+            if (bitset) {
+                *dst |= xybit(dsty);
+            }
+            else {
+                *dst &= ~xybit(dsty);
+            }
+			dstx++;
+            srcbit++;
+        }
+    }
+    g->flags |= GDISP_FLG_NEEDFLUSH;
+}
+
+#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);
+            enter_cmd_mode(g);
+            write_cmd(g, ST7565_DISPLAY_OFF);
+            flush_cmd(g);
+            release_bus(g);
+            break;
+        case powerOn:
+            acquire_bus(g);
+            enter_cmd_mode(g);
+            write_cmd(g, ST7565_DISPLAY_ON);
+            flush_cmd(g);
+            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) {
+            /* Rotation is handled by the drawing routines */
+            case GDISP_ROTATE_0:
+            case GDISP_ROTATE_180:
+                g->g.Height = GDISP_SCREEN_HEIGHT;
+                g->g.Width = GDISP_SCREEN_WIDTH;
+                break;
+            case GDISP_ROTATE_90:
+            case GDISP_ROTATE_270:
+                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_CONTRAST:
+                g->g.Contrast = (unsigned)g->p.ptr & 63;
+                acquire_bus(g);
+                enter_cmd_mode(g);
+                write_cmd2(g, ST7565_CONTRAST, g->g.Contrast);
+                flush_cmd(g);
+                release_bus(g);
+                return;
+    }
+}
+#endif // GDISP_NEED_CONTROL
+
+#endif // GFX_USE_GDISP
diff --git a/drivers/ugfx/gdisp/st7565ergodox/gdisp_lld_config.h b/drivers/ugfx/gdisp/st7565ergodox/gdisp_lld_config.h
new file mode 100644
index 000000000..2b66a877c
--- /dev/null
+++ b/drivers/ugfx/gdisp/st7565ergodox/gdisp_lld_config.h
@@ -0,0 +1,27 @@
+/*
+ * 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
+ */
+
+#ifndef _GDISP_LLD_CONFIG_H
+#define _GDISP_LLD_CONFIG_H
+
+#if GFX_USE_GDISP
+
+/*===========================================================================*/
+/* Driver hardware support.                                                  */
+/*===========================================================================*/
+
+#define GDISP_HARDWARE_FLUSH            TRUE		// This controller requires flushing
+#define GDISP_HARDWARE_DRAWPIXEL        TRUE
+#define GDISP_HARDWARE_PIXELREAD        TRUE
+#define GDISP_HARDWARE_CONTROL          TRUE
+#define GDISP_HARDWARE_BITFILLS         TRUE
+
+#define GDISP_LLD_PIXELFORMAT           GDISP_PIXELFORMAT_MONO
+
+#endif	/* GFX_USE_GDISP */
+
+#endif	/* _GDISP_LLD_CONFIG_H */
diff --git a/drivers/ugfx/gdisp/st7565ergodox/st7565.h b/drivers/ugfx/gdisp/st7565ergodox/st7565.h
new file mode 100644
index 000000000..24924ff05
--- /dev/null
+++ b/drivers/ugfx/gdisp/st7565ergodox/st7565.h
@@ -0,0 +1,39 @@
+/*
+ * 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
+ */
+
+#ifndef _ST7565_H
+#define _ST7565_H
+
+#define ST7565_CONTRAST             0x81
+#define ST7565_ALLON_NORMAL         0xA4
+#define ST7565_ALLON                0xA5
+#define ST7565_POSITIVE_DISPLAY     0xA6
+#define ST7565_INVERT_DISPLAY       0xA7
+#define ST7565_DISPLAY_OFF          0xAE
+#define ST7565_DISPLAY_ON           0xAF
+
+#define ST7565_LCD_BIAS_7           0xA3
+#define ST7565_LCD_BIAS_9           0xA2
+
+#define ST7565_ADC_NORMAL           0xA0
+#define ST7565_ADC_REVERSE          0xA1
+
+#define ST7565_COM_SCAN_INC         0xC0
+#define ST7565_COM_SCAN_DEC         0xC8
+
+#define ST7565_START_LINE           0x40
+#define ST7565_PAGE                 0xB0
+#define ST7565_COLUMN_MSB           0x10
+#define ST7565_COLUMN_LSB           0x00
+#define ST7565_RMW                  0xE0
+
+#define ST7565_RESISTOR_RATIO       0x20
+#define ST7565_POWER_CONTROL        0x28
+
+#define ST7565_RESET                0xE2
+
+#endif /* _ST7565_H */