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authorp.shamray <pshampay@gmail.com>2014-06-12 11:05:53 +0300
committerp.shamray <pshampay@gmail.com>2014-06-12 11:05:53 +0300
commitf3870ce44130516ee7a898685c53ddf48d47d8cd (patch)
treec5289c801f2c9b8baf13b0fb74a590358e08504a /drivers/gdisp
parent2127c61eeeea920ba79923bc6f29a1e2de80d61d (diff)
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first commit PCF8812 driver
Diffstat (limited to 'drivers/gdisp')
-rw-r--r--drivers/gdisp/PCF8812/PCF8812.h53
-rw-r--r--drivers/gdisp/PCF8812/board_PCF8812_template.h43
-rw-r--r--drivers/gdisp/PCF8812/gdisp_lld.mk2
-rw-r--r--drivers/gdisp/PCF8812/gdisp_lld_PCF8812.c213
-rw-r--r--drivers/gdisp/PCF8812/gdisp_lld_config.h25
5 files changed, 336 insertions, 0 deletions
diff --git a/drivers/gdisp/PCF8812/PCF8812.h b/drivers/gdisp/PCF8812/PCF8812.h
new file mode 100644
index 00000000..6faec88a
--- /dev/null
+++ b/drivers/gdisp/PCF8812/PCF8812.h
@@ -0,0 +1,53 @@
+/*
+ * 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 _PCF8812_H
+#define _PCF8812_H
+
+#define PCF8812_SET_FUNC 0x20 // Function set
+#define PCF8812_H 0x01
+#define PCF8812_V 0x02
+#define PCF8812_PD 0x04
+
+#define PCF8812_DISPLAY 0x08
+#define PCF8812_DISPLAY_MODE_BLANK 0x00 // bit D = 0, E = 0
+#define PCF8812_DISPLAY_MODE_FILL 0x01 // bit D = 0, E = 1
+#define PCF8812_DISPLAY_MODE_NORMAL 0x04 // bit D = 1, E = 0
+#define PCF8812_DISPLAY_MODE_INVERT 0x05 // bit D = 1, E = 1
+
+#define PCF8812_SET_PRS 0x10 // Set Vop range, VLCD programming range select
+
+#define PCF8812_SET_Y 0x04 // 0 0 1 0 0 Y3 Y2 Y1 Y0
+#define PCF8812_SET_X 0x80 // 0 1 X6 X5 X4 X3 X2 X1 X0
+
+// =========================================
+
+#define PCF8812_TEMP_CONTROL 0x04 // set temperature coefficient (TCx)
+#define PCF8812_TEMP_MODE_0 0x00 // TC1 = 0, TC0 = 0
+#define PCF8812_TEMP_MODE_1 0x01 // TC1 = 0, TC0 = 1
+#define PCF8812_TEMP_MODE_2 0x02 // TC1 = 1, TC0 = 0
+#define PCF8812_TEMP_MODE_3 0x03 // TC1 = 1, TC0 = 1
+
+#define PCF8812_SET_VMULT 0x08 // Set voltage multiplier factor
+#define PCF8812_VMULT_MODE_0 0x00 // S1 = 0, S0 = 0 - 2 × voltage multiplier
+#define PCF8812_VMULT_MODE_1 0x01 // S1 = 0, S0 = 1 - 3 × voltage multiplier
+#define PCF8812_VMULT_MODE_2 0x02 // S1 = 1, S0 = 0 - 4 × voltage multiplier
+#define PCF8812_VMULT_MODE_3 0x03 // S1 = 1, S0 = 1 - 5 × voltage multiplier
+
+#define PCF8812_SET_BIAS 0x10 // set bias system (BSx)
+#define PCF8812_BIAS_MODE_7 0x00 // 1 to 100
+#define PCF8812_BIAS_MODE_6 0x01 // 1 to 80
+#define PCF8812_BIAS_MODE_5 0x02 // 1 to 65
+#define PCF8812_BIAS_MODE_4 0x03 // 1 to 48
+#define PCF8812_BIAS_MODE_3 0x04 // 1 to 40 or 1 to 34
+#define PCF8812_BIAS_MODE_2 0x05 // 1 to 24
+#define PCF8812_BIAS_MODE_1 0x06 // 1 to 18 or 1 to 16
+#define PCF8812_BIAS_MODE_0 0x07 // 1 to 10 or 1 to 9 or 1 to 8
+
+#define PCF8812_SET_VOP 0x80 // write VOP to register, 1 VOP6 VOP5 VOP4 VOP3 VOP2 VOP1 VOP0
+
+#endif /* _PCF8812_H */
diff --git a/drivers/gdisp/PCF8812/board_PCF8812_template.h b/drivers/gdisp/PCF8812/board_PCF8812_template.h
new file mode 100644
index 00000000..08ec130d
--- /dev/null
+++ b/drivers/gdisp/PCF8812/board_PCF8812_template.h
@@ -0,0 +1,43 @@
+/*
+ * 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_BOARD_H
+#define _GDISP_LLD_BOARD_H
+
+static inline void init_board(GDisplay *g) {
+ (void) g;
+}
+
+static inline void post_init_board(GDisplay *g) {
+ (void) g;
+}
+
+static inline void setpin_reset(GDisplay *g, bool_t state) {
+ (void) g;
+ (void) state;
+}
+
+static inline void acquire_bus(GDisplay *g) {
+ (void) g;
+}
+
+static inline void release_bus(GDisplay *g) {
+ (void) g;
+}
+
+static inline void write_cmd(GDisplay *g, uint8_t cmd) {
+ (void) g;
+ (void) cmd;
+}
+
+static inline void write_data(GDisplay *g, uint8_t* data, uint16_t length) {
+ (void) g;
+ (void) data;
+ (void) length;
+}
+
+#endif /* _GDISP_LLD_BOARD_H */
diff --git a/drivers/gdisp/PCF8812/gdisp_lld.mk b/drivers/gdisp/PCF8812/gdisp_lld.mk
new file mode 100644
index 00000000..f2394eaf
--- /dev/null
+++ b/drivers/gdisp/PCF8812/gdisp_lld.mk
@@ -0,0 +1,2 @@
+GFXINC += $(GFXLIB)/drivers/gdisp/PCF8812
+GFXSRC += $(GFXLIB)/drivers/gdisp/PCF8812/gdisp_lld_PCF8812.c
diff --git a/drivers/gdisp/PCF8812/gdisp_lld_PCF8812.c b/drivers/gdisp/PCF8812/gdisp_lld_PCF8812.c
new file mode 100644
index 00000000..083f6d50
--- /dev/null
+++ b/drivers/gdisp/PCF8812/gdisp_lld_PCF8812.c
@@ -0,0 +1,213 @@
+/*
+ * 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_PCF8812
+#include "drivers/gdisp/PCF8812/gdisp_lld_config.h"
+#include "src/gdisp/driver.h"
+
+#include "board_PCF8812.h"
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+#ifndef GDISP_SCREEN_HEIGHT
+ #define GDISP_SCREEN_HEIGHT 65
+#endif
+#ifndef GDISP_SCREEN_WIDTH
+ #define GDISP_SCREEN_WIDTH 102
+#endif
+#ifndef GDISP_INITIAL_CONTRAST
+ #define GDISP_INITIAL_CONTRAST 51
+#endif
+#ifndef GDISP_INITIAL_BACKLIGHT
+ #define GDISP_INITIAL_BACKLIGHT 100
+#endif
+
+#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER<<0)
+
+#include "drivers/gdisp/PCF8812/PCF8812.h"
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+// Some common routines and macros
+#define RAM(g) ((uint8_t *)g->priv)
+
+#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.
+ * 65 * 102 / 8 = 829 bytes.
+ */
+
+LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
+ // The private area is the display surface.
+ g->priv = gfxAlloc((GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT / 8));
+
+ // Initialise the board interface
+ init_board(g);
+
+ // Hardware reset
+ setpin_reset(g, TRUE);
+ gfxSleepMilliseconds(100);
+ setpin_reset(g, FALSE);
+ gfxSleepMilliseconds(100);
+
+ acquire_bus(g);
+
+ write_cmd(g, PCF8812_SET_FUNC | PCF8812_H);
+ write_cmd(g, PCF8812_TEMP_CONTROL | PCF8812_TEMP_MODE_1);
+ write_cmd(g, PCF8812_SET_VMULT | PCF8812_VMULT_MODE_1);
+ write_cmd(g, PCF8812_SET_VOP | 0xFF);
+ write_cmd(g, PCF8812_SET_FUNC);
+ write_cmd(g, PCF8812_DISPLAY | PCF8812_DISPLAY_MODE_NORMAL);
+
+
+
+ unsigned int i;
+ for (i = 0; i < (GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT / 8); ++i)
+ {
+ RAM(g)[i] &= 0x00;
+ write_data(g, (uint8_t*)0x00, 1);
+ }
+
+ // 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 = powerOn;
+ 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) {
+
+ // Don't flush if we don't need it.
+ if (!(g->flags & GDISP_FLG_NEEDFLUSH))
+ return;
+
+ unsigned int i;
+
+ acquire_bus(g);
+ for (i = 0; i < (GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT / 8); i += GDISP_SCREEN_WIDTH) {
+ write_data(g, RAM(g) + i, GDISP_SCREEN_WIDTH);
+ }
+ release_bus(g);
+ }
+#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_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_cmd(g, PCF8812_DISPLAY_OFF);
+ release_bus(g);
+ break;
+ case powerOn:
+ acquire_bus(g);
+ write_cmd(g, PCF8812_DISPLAY_ON);
+ 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:
+ if ((unsigned)g->p.ptr > 100)
+ g->p.ptr = (void *)100;
+ acquire_bus(g);
+ release_bus(g);
+ g->g.Contrast = (unsigned)g->p.ptr;
+ return;
+ }
+ }
+#endif // GDISP_NEED_CONTROL
+
+#endif // GFX_USE_GDISP
diff --git a/drivers/gdisp/PCF8812/gdisp_lld_config.h b/drivers/gdisp/PCF8812/gdisp_lld_config.h
new file mode 100644
index 00000000..f95fc178
--- /dev/null
+++ b/drivers/gdisp/PCF8812/gdisp_lld_config.h
@@ -0,0 +1,25 @@
+/*
+ * 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_CONTROL TRUE
+
+#define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_MONO
+
+#endif /* GFX_USE_GDISP */
+
+#endif /* _GDISP_LLD_CONFIG_H */