/* 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/>. */ #ifndef _GDISP_LLD_BOARD_H #define _GDISP_LLD_BOARD_H static const I2CConfig i2ccfg = { 400000 // clock speed (Hz); 400kHz max for IS31 }; static const uint8_t led_mask[] = { 0xFF, 0x00, /* C1-1 -> C1-16 */ 0xFF, 0x00, /* C2-1 -> C2-16 */ 0xFF, 0x00, /* C3-1 -> C3-16 */ 0xFF, 0x00, /* C4-1 -> C4-16 */ 0x3F, 0x00, /* C5-1 -> C5-16 */ 0x00, 0x00, /* C6-1 -> C6-16 */ 0x00, 0x00, /* C7-1 -> C7-16 */ 0x00, 0x00, /* C8-1 -> C8-16 */ 0x00, 0x00, /* C9-1 -> C9-16 */ }; // The address of the LED #define LA(c, r) (c + r * 16 ) // Need to be an address that is not mapped, but inside the range of the controller matrix #define NA LA(8, 8) // The numbers in the comments are the led numbers DXX on the PCB // The mapping is taken from the schematic of left hand side static const uint8_t led_mapping[GDISP_SCREEN_HEIGHT][GDISP_SCREEN_WIDTH] = { // 45 44 43 42 41 40 39 { LA(1, 1), LA(1, 0), LA(0, 4), LA(0, 3), LA(0, 2), LA(0, 1), LA(0, 0)}, // 52 51 50 49 48 47 46 { LA(2, 3), LA(2, 2), LA(2, 1), LA(2, 0), LA(1, 4), LA(1, 3), LA(1, 2) }, // 58 57 56 55 54 53 N/A { LA(3, 4), LA(3, 3), LA(3, 2), LA(3, 1), LA(3, 0), LA(2, 4), NA }, // 67 66 65 64 63 62 61 { LA(5, 3), LA(5, 2), LA(5, 1), LA(5, 0), LA(4, 4), LA(4, 3), LA(4, 2) }, // 76 75 74 73 72 60 59 { LA(7, 3), LA(7, 2), LA(7, 1), LA(7, 0), LA(6, 3), LA(4, 1), LA(4, 0) }, // N/A N/A N/A N/A N/A N/A 68 { NA, NA, NA, NA, NA, NA, LA(5, 4) }, // N/A N/A N/A N/A 71 70 69 { NA, NA, NA, NA, LA(6, 2), LA(6, 1), LA(6, 0) }, }; #define IS31_ADDR_DEFAULT 0x74 // AD connected to GND #define IS31_TIMEOUT 5000 static GFXINLINE void init_board(GDisplay *g) { (void) g; /* I2C pins */ palSetPadMode(GPIOB, 0, PAL_MODE_ALTERNATIVE_2); // PTB0/I2C0/SCL palSetPadMode(GPIOB, 1, PAL_MODE_ALTERNATIVE_2); // PTB1/I2C0/SDA palSetPadMode(GPIOB, 16, PAL_MODE_OUTPUT_PUSHPULL); palClearPad(GPIOB, 16); /* start I2C */ i2cStart(&I2CD1, &i2ccfg); // try high drive (from kiibohd) I2CD1.i2c->C2 |= I2Cx_C2_HDRS; // try glitch fixing (from kiibohd) I2CD1.i2c->FLT = 4; } static GFXINLINE void post_init_board(GDisplay *g) { (void) g; } static GFXINLINE const uint8_t* get_led_mask(GDisplay* g) { (void) g; return led_mask; } static GFXINLINE uint8_t get_led_address(GDisplay* g, uint16_t x, uint16_t y) { (void) g; return led_mapping[y][x]; } static GFXINLINE void set_hardware_shutdown(GDisplay* g, bool shutdown) { (void) g; if(!shutdown) { palSetPad(GPIOB, 16); } else { palClearPad(GPIOB, 16); } } static GFXINLINE void write_data(GDisplay *g, uint8_t* data, uint16_t length) { (void) g; i2cMasterTransmitTimeout(&I2CD1, IS31_ADDR_DEFAULT, data, length, 0, 0, TIME_US2I(IS31_TIMEOUT)); } #endif /* _GDISP_LLD_BOARD_H */