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author | inmarket <andrewh@inmarket.com.au> | 2013-10-28 11:03:39 +1000 |
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committer | inmarket <andrewh@inmarket.com.au> | 2013-10-28 11:03:39 +1000 |
commit | b05a29f830008ab0e9a36d8384ed7cf4ea3fb18b (patch) | |
tree | 193e79f1d53638dad20ac86c1c2e18492311f6b6 /drivers/gdisp/RA8875/gdisp_lld_RA8875.c | |
parent | 9e5ed28f98e7b0b3dbd46df7a62568dbaffab92a (diff) | |
download | uGFX-b05a29f830008ab0e9a36d8384ed7cf4ea3fb18b.tar.gz uGFX-b05a29f830008ab0e9a36d8384ed7cf4ea3fb18b.tar.bz2 uGFX-b05a29f830008ab0e9a36d8384ed7cf4ea3fb18b.zip |
Rename GDISP driver files to prevent problems when compiling for multiple controllers on platforms that put all generated object files into a single directory.
Diffstat (limited to 'drivers/gdisp/RA8875/gdisp_lld_RA8875.c')
-rw-r--r-- | drivers/gdisp/RA8875/gdisp_lld_RA8875.c | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/drivers/gdisp/RA8875/gdisp_lld_RA8875.c b/drivers/gdisp/RA8875/gdisp_lld_RA8875.c new file mode 100644 index 00000000..fb81c43a --- /dev/null +++ b/drivers/gdisp/RA8875/gdisp_lld_RA8875.c @@ -0,0 +1,283 @@ +/* + * 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 + */ + +/** + * @file drivers/gdisp/RA8875/gdisp_lld.c + * @brief GDISP Graphics Driver subsystem low level driver source. + */ + +#include "gfx.h" + +#if GFX_USE_GDISP /*|| defined(__DOXYGEN__)*/ + +#define GDISP_DRIVER_VMT GDISPVMT_RA8875 +#include "../drivers/gdisp/RA8875/gdisp_lld_config.h" +#include "gdisp/lld/gdisp_lld.h" + +/* include the users board interface */ +#include "board_RA8875.h" + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +#ifndef GDISP_SCREEN_HEIGHT + #define GDISP_SCREEN_HEIGHT 272 +#endif +#ifndef GDISP_SCREEN_WIDTH + #define GDISP_SCREEN_WIDTH 480 +#endif +#ifndef GDISP_INITIAL_CONTRAST + #define GDISP_INITIAL_CONTRAST 50 +#endif +#ifndef GDISP_INITIAL_BACKLIGHT + #define GDISP_INITIAL_BACKLIGHT 74 +#endif + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +// Some common routines and macros +#define dummy_read(g) { volatile uint16_t dummy; dummy = read_data(g); (void) dummy; } +#define write_reg8(g, reg, data) { write_index(g, reg); write_data(g, data); } +#define write_reg16(g, reg, data) { write_index(g, reg); write_data(g, data); write_index(g, reg+1); write_data(g, (data)>>8); } +#define write_reg8x2(g, reg, d1, d2) { write_index(g, reg); write_data(g, d1); write_data(g, d2); } + +static inline void set_cursor(GDisplay *g) { + write_reg16(g, 0x46, g->p.x); + write_reg16(g, 0x48, g->p.y); + write_index(g, 0x02); +} + +static inline void set_viewport(GDisplay* g) { + write_reg16(g, 0x30, g->p.x); //HSAW0 & HSAW1 + write_reg16(g, 0x34, g->p.x+g->p.cx-1); //HEAW0 & HEAW1 + write_reg16(g, 0x32, g->p.y); //VSAW0 & VSAW1 + write_reg16(g, 0x36, g->p.y+g->p.cy-1); //VEAW0 & VEAW1 +} + +// On this controller the back-light is controlled by the controllers internal PWM +// which is why it is in this file rather than the board file. +static inline void set_backlight(GDisplay* g, uint8_t percent) { + uint8_t temp; + + //Work in progress: the RA8875 has a built-in PWM, its output can + //be used by a Dynamic Background Control or by a host (user) + + // Enable PWM1 + write_index(g, 0x8a); //MCLR + setreadmode(g); + temp = read_data(g); + setwritemode(g); + temp |= 1<<7 ; + write_data(g, temp); + + // PWM1 function select + write_index(g, 0x8a); //MCLR + setreadmode(g); + temp = read_data(g); + setwritemode(g); + temp &= ~(1<<4); + write_data(g, temp); + + // PWM1 Clock ratio + write_index(g, 0x8a); //MCLR + setreadmode(g); + temp = read_data(g); + setwritemode(g); + temp &= 0xf0; + temp |= 0x0b & 0x0f; + write_data(g, temp); + + // PWM1 Write duty cycle + write_reg8(g, 0x8b, 54+percent); // PTNO: Also change percent to range from 0x00 to 0xFF +} + +/*===========================================================================*/ +/* Driver interrupt handlers. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* 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); + + // Soft reset + write_reg8x2(g, 0x01, 0x01, 0x00); gfxSleepMilliseconds(1); + + // PLL config + write_reg8(g, 0x88, 0x08); gfxSleepMilliseconds(1); + write_reg8(g, 0x89, 0x02); gfxSleepMilliseconds(1); + + write_reg8(g, 0x10, 0x0F); //SYSR bit[4:3]=00 256 color bit[2:1]= 00 8bit MPU interface + // 0x0F = 16bit MCU interface and 65k color display + + write_reg8(g, 0x04, 0x82); gfxSleepMilliseconds(1); //set PCLK inverse + + // Horizontal set + write_reg8(g, 0x14, GDISP_SCREEN_WIDTH/8-1); //HDWR: Horizontal Display Width Setting Bit[6:0] - pixels = (HDWR + 1)*8 + write_reg8(g, 0x15, 0x00); //Horizontal Non-Display Period Fine Tuning Option Register (HNDFTR) - HNDFT = [3:0] + write_reg8(g, 0x16, 0x01); //HNDR: Horizontal Non-Display Period Bit[4:0] - pixels = (HNDR + 1)*8 + write_reg8(g, 0x17, 0x00); //HSTR: HSYNC Start Position[4:0] - Position(PCLK) = (HSTR + 1)*8 + write_reg8(g, 0x18, 0x05); //HPWR: HSYNC Polarity, The period width of HSYNC. Width [4:0] width(PCLK) = (HPWR + 1)*8 + + // Vertical set + write_reg16(g, 0x19, GDISP_SCREEN_HEIGHT-1); //VDHR0,1: Vertical Display Height = VDHR + 1 + write_reg16(g, 0x1b, 0x0002); //VNDR0,1: Vertical Non-Display Period Bit = (VSTR + 1) + write_reg16(g, 0x1d, 0x0007); //VSTR0,1: VSYNC Start Position = (VSTR + 1) + write_reg8(g, 0x1f, 0x09); //VPWR: VSYNC Polarity, VSYNC Pulse Width[6:0] - Width(PCLK) = (VPWR + 1) + + // Active window set + write_reg16(g, 0x30, 0); //HSAW0 & HSAW1 + write_reg16(g, 0x34, GDISP_SCREEN_WIDTH-1); //HEAW0 & HEAW1 + write_reg16(g, 0x32, 0); //VSAW0 & VSAW1 + write_reg16(g, 0x36, GDISP_SCREEN_HEIGHT-1); //VEAW0 & VEAW1 + + // Display ON + write_reg8(g, 0x01, 0x80); //PWRR + + // GPO0 DISP high + write_reg8(g, 0x13, 0x01); //GPO + + // Set initial back-light + set_backlight(g, GDISP_INITIAL_BACKLIGHT); + + // Change timings for faster access + 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_STREAM_WRITE + LLDSPEC void gdisp_lld_write_start(GDisplay *g) { + acquire_bus(g); + set_viewport(g); + } + LLDSPEC void gdisp_lld_write_color(GDisplay *g) { + write_data(g, g->p.color); + } + LLDSPEC void gdisp_lld_write_stop(GDisplay *g) { + release_bus(g); + } + LLDSPEC void gdisp_lld_write_pos(GDisplay *g) { + set_cursor(g); + } +#endif + +#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL + LLDSPEC void gdisp_lld_control(GDisplay *g) { + switch(g->p.x) { + #if 0 + 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); + // TODO + release_bus(g); + break; + case powerOn: + acquire_bus(g); + // TODO + release_bus(g); + break; + case powerSleep: + acquire_bus(g); + // TODO + release_bus(g); + break; + default: + return; + } + g->g.Powermode = (powermode_t)g->p.ptr; + return; + #endif + + #if 0 + 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); + // TODO + release_bus(g); + g->g.Height = GDISP_SCREEN_HEIGHT; + g->g.Width = GDISP_SCREEN_WIDTH; + break; + case GDISP_ROTATE_90: + acquire_bus(g); + // TODO + release_bus(g); + g->g.Height = GDISP_SCREEN_WIDTH; + g->g.Width = GDISP_SCREEN_HEIGHT; + break; + case GDISP_ROTATE_180: + acquire_bus(g); + // TODO + release_bus(g); + g->g.Height = GDISP_SCREEN_HEIGHT; + g->g.Width = GDISP_SCREEN_WIDTH; + break; + case GDISP_ROTATE_270: + acquire_bus(g); + // TODO + 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; + #endif + + case GDISP_CONTROL_BACKLIGHT: + if ((unsigned)g->p.ptr > 100) + g->p.ptr = (void *)100; + acquire_bus(g); + set_backlight(g, (unsigned)g->p.ptr); + release_bus(g); + g->g.Backlight = (unsigned)g->p.ptr; + return; + + //case GDISP_CONTROL_CONTRAST: + default: + return; + } + } +#endif + +#endif /* GFX_USE_GDISP */ |