diff options
Diffstat (limited to 'keyboards/whitefox/drivers/gdisp/IS31FL3731C/gdisp_IS31FL3731C.c')
| -rw-r--r-- | keyboards/whitefox/drivers/gdisp/IS31FL3731C/gdisp_IS31FL3731C.c | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/keyboards/whitefox/drivers/gdisp/IS31FL3731C/gdisp_IS31FL3731C.c b/keyboards/whitefox/drivers/gdisp/IS31FL3731C/gdisp_IS31FL3731C.c new file mode 100644 index 0000000000..c807cbd1e2 --- /dev/null +++ b/keyboards/whitefox/drivers/gdisp/IS31FL3731C/gdisp_IS31FL3731C.c @@ -0,0 +1,312 @@ +/* +Copyright 2016 Fred Sundvik <fsundvik@gmail.com> + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "gfx.h" + +#if GFX_USE_GDISP + +#define GDISP_DRIVER_VMT GDISPVMT_IS31FL3731C_WHITEFOX +#include "drivers/gdisp/IS31FL3731C/gdisp_lld_config.h" +#include "src/gdisp/gdisp_driver.h" + +#include "board_IS31FL3731C.h" + + +// Can't include led_tables from here +extern const uint8_t CIE1931_CURVE[]; + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +#ifndef GDISP_SCREEN_HEIGHT + #define GDISP_SCREEN_HEIGHT 9 +#endif +#ifndef GDISP_SCREEN_WIDTH + #define GDISP_SCREEN_WIDTH 16 +#endif +#ifndef GDISP_INITIAL_CONTRAST + #define GDISP_INITIAL_CONTRAST 0 +#endif +#ifndef GDISP_INITIAL_BACKLIGHT + #define GDISP_INITIAL_BACKLIGHT 0 +#endif + +#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER<<0) + +#define IS31_ADDR_DEFAULT 0x74 + +#define IS31_REG_CONFIG 0x00 +// bits in reg +#define IS31_REG_CONFIG_PICTUREMODE 0x00 +#define IS31_REG_CONFIG_AUTOPLAYMODE 0x08 +#define IS31_REG_CONFIG_AUDIOPLAYMODE 0x18 +// D2:D0 bits are starting frame for autoplay mode + +#define IS31_REG_PICTDISP 0x01 // D2:D0 frame select for picture mode + +#define IS31_REG_AUTOPLAYCTRL1 0x02 +// D6:D4 number of loops (000=infty) +// D2:D0 number of frames to be used + +#define IS31_REG_AUTOPLAYCTRL2 0x03 // D5:D0 delay time (*11ms) + +#define IS31_REG_DISPLAYOPT 0x05 +#define IS31_REG_DISPLAYOPT_INTENSITY_SAME 0x20 // same intensity for all frames +#define IS31_REG_DISPLAYOPT_BLINK_ENABLE 0x8 +// D2:D0 bits blink period time (*0.27s) + +#define IS31_REG_AUDIOSYNC 0x06 +#define IS31_REG_AUDIOSYNC_ENABLE 0x1 + +#define IS31_REG_FRAMESTATE 0x07 + +#define IS31_REG_BREATHCTRL1 0x08 +// D6:D4 fade out time (26ms*2^i) +// D2:D0 fade in time (26ms*2^i) + +#define IS31_REG_BREATHCTRL2 0x09 +#define IS31_REG_BREATHCTRL2_ENABLE 0x10 +// D2:D0 extinguish time (3.5ms*2^i) + +#define IS31_REG_SHUTDOWN 0x0A +#define IS31_REG_SHUTDOWN_OFF 0x0 +#define IS31_REG_SHUTDOWN_ON 0x1 + +#define IS31_REG_AGCCTRL 0x0B +#define IS31_REG_ADCRATE 0x0C + +#define IS31_COMMANDREGISTER 0xFD +#define IS31_FUNCTIONREG 0x0B // helpfully called 'page nine' +#define IS31_FUNCTIONREG_SIZE 0xD + +#define IS31_FRAME_SIZE 0xB4 + +#define IS31_PWM_REG 0x24 +#define IS31_PWM_SIZE 0x90 + +#define IS31_LED_MASK_SIZE 0x12 +#define IS31_SCREEN_WIDTH 16 + +#define IS31 + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +typedef struct{ + uint8_t write_buffer_offset; + uint8_t write_buffer[IS31_FRAME_SIZE]; + uint8_t frame_buffer[GDISP_SCREEN_HEIGHT * GDISP_SCREEN_WIDTH]; + uint8_t page; +}__attribute__((__packed__)) PrivData; + +// Some common routines and macros +#define PRIV(g) ((PrivData*)g->priv) + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +static GFXINLINE void write_page(GDisplay* g, uint8_t page) { + uint8_t tx[2] __attribute__((aligned(2))); + tx[0] = IS31_COMMANDREGISTER; + tx[1] = page; + write_data(g, tx, 2); +} + +static GFXINLINE void write_register(GDisplay* g, uint8_t page, uint8_t reg, uint8_t data) { + uint8_t tx[2] __attribute__((aligned(2))); + tx[0] = reg; + tx[1] = data; + write_page(g, page); + write_data(g, tx, 2); +} + +static GFXINLINE void write_ram(GDisplay *g, uint8_t page, uint16_t offset, uint16_t length) { + PRIV(g)->write_buffer_offset = offset; + write_page(g, page); + write_data(g, (uint8_t*)PRIV(g), length + 1); +} + +LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { + // The private area is the display surface. + g->priv = gfxAlloc(sizeof(PrivData)); + __builtin_memset(PRIV(g), 0, sizeof(PrivData)); + PRIV(g)->page = 0; + + // Initialise the board interface + init_board(g); + gfxSleepMilliseconds(10); + + // zero function page, all registers (assuming full_page is all zeroes) + write_ram(g, IS31_FUNCTIONREG, 0, IS31_FUNCTIONREG_SIZE); + set_hardware_shutdown(g, false); + gfxSleepMilliseconds(10); + // software shutdown + write_register(g, IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF); + gfxSleepMilliseconds(10); + // zero function page, all registers + write_ram(g, IS31_FUNCTIONREG, 0, IS31_FUNCTIONREG_SIZE); + gfxSleepMilliseconds(10); + + + // zero all LED registers on all 8 pages, and enable the mask + __builtin_memcpy(PRIV(g)->write_buffer, get_led_mask(g), IS31_LED_MASK_SIZE); + for(uint8_t i=0; i<8; i++) { + write_ram(g, i, 0, IS31_FRAME_SIZE); + gfxSleepMilliseconds(1); + } + + // software shutdown disable (i.e. turn stuff on) + write_register(g, IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF); + gfxSleepMilliseconds(10); + + // Finish Init + post_init_board(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) { + // Don't flush if we don't need it. + if (!(g->flags & GDISP_FLG_NEEDFLUSH)) + return; + + PRIV(g)->page++; + PRIV(g)->page %= 2; + // TODO: some smarter algorithm for this + // We should run only one physical page at a time + // This way we don't need to send so much data, and + // we could use slightly less memory + uint8_t* src = PRIV(g)->frame_buffer; + for (int y=0;y<GDISP_SCREEN_HEIGHT;y++) { + for (int x=0;x<GDISP_SCREEN_WIDTH;x++) { + uint8_t val = (uint16_t)*src * g->g.Backlight / 100; + PRIV(g)->write_buffer[get_led_address(g, x, y)]=CIE1931_CURVE[val]; + ++src; + } + } + write_ram(g, PRIV(g)->page, IS31_PWM_REG, IS31_PWM_SIZE); + gfxSleepMilliseconds(1); + write_register(g, IS31_FUNCTIONREG, IS31_REG_PICTDISP, PRIV(g)->page); + + 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_180: + x = GDISP_SCREEN_WIDTH-1 - g->p.x; + y = g->p.y; + break; + } + PRIV(g)->frame_buffer[y * GDISP_SCREEN_WIDTH + x] = gdispColor2Native(g->p.color); + 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_180: + x = GDISP_SCREEN_WIDTH-1 - g->p.x; + y = g->p.y; + break; + } + return gdispNative2Color(PRIV(g)->frame_buffer[y * GDISP_SCREEN_WIDTH + x]); + } +#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: + write_register(g, IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF); + break; + case powerOn: + write_register(g, IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_ON); + 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_BACKLIGHT: + if (g->g.Backlight == (unsigned)g->p.ptr) + return; + unsigned val = (unsigned)g->p.ptr; + g->g.Backlight = val > 100 ? 100 : val; + g->flags |= GDISP_FLG_NEEDFLUSH; + return; + } + } +#endif // GDISP_NEED_CONTROL + +#endif // GFX_USE_GDISP |