From f3870ce44130516ee7a898685c53ddf48d47d8cd Mon Sep 17 00:00:00 2001 From: "p.shamray" Date: Thu, 12 Jun 2014 11:05:53 +0300 Subject: [PATCH] first commit PCF8812 driver --- drivers/gdisp/PCF8812/PCF8812.h | 53 +++++ .../gdisp/PCF8812/board_PCF8812_template.h | 43 ++++ drivers/gdisp/PCF8812/gdisp_lld.mk | 2 + drivers/gdisp/PCF8812/gdisp_lld_PCF8812.c | 213 ++++++++++++++++++ drivers/gdisp/PCF8812/gdisp_lld_config.h | 25 ++ 5 files changed, 336 insertions(+) create mode 100644 drivers/gdisp/PCF8812/PCF8812.h create mode 100644 drivers/gdisp/PCF8812/board_PCF8812_template.h create mode 100644 drivers/gdisp/PCF8812/gdisp_lld.mk create mode 100644 drivers/gdisp/PCF8812/gdisp_lld_PCF8812.c create mode 100644 drivers/gdisp/PCF8812/gdisp_lld_config.h 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 */