111 lines
3.7 KiB
C
111 lines
3.7 KiB
C
/*
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Copyright 2016 Fred Sundvik <fsundvik@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _GDISP_LLD_BOARD_H
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#define _GDISP_LLD_BOARD_H
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static const I2CConfig i2ccfg = {
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400000 // clock speed (Hz); 400kHz max for IS31
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};
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static const uint8_t led_mask[] = {
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0xFF, 0x00, /* C1-1 -> C1-16 */
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0xFF, 0x00, /* C2-1 -> C2-16 */
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0xFF, 0x00, /* C3-1 -> C3-16 */
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0xFF, 0x00, /* C4-1 -> C4-16 */
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0x3F, 0x00, /* C5-1 -> C5-16 */
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0x00, 0x00, /* C6-1 -> C6-16 */
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0x00, 0x00, /* C7-1 -> C7-16 */
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0x00, 0x00, /* C8-1 -> C8-16 */
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0x00, 0x00, /* C9-1 -> C9-16 */
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};
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// The address of the LED
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#define LA(c, r) (c + r * 16 )
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// Need to be an address that is not mapped, but inside the range of the controller matrix
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#define NA LA(8, 8)
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// The numbers in the comments are the led numbers DXX on the PCB
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// The mapping is taken from the schematic of left hand side
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static const uint8_t led_mapping[GDISP_SCREEN_HEIGHT][GDISP_SCREEN_WIDTH] = {
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// 45 44 43 42 41 40 39
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{ LA(1, 1), LA(1, 0), LA(0, 4), LA(0, 3), LA(0, 2), LA(0, 1), LA(0, 0)},
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// 52 51 50 49 48 47 46
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{ LA(2, 3), LA(2, 2), LA(2, 1), LA(2, 0), LA(1, 4), LA(1, 3), LA(1, 2) },
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// 58 57 56 55 54 53 N/A
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{ LA(3, 4), LA(3, 3), LA(3, 2), LA(3, 1), LA(3, 0), LA(2, 4), NA },
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// 67 66 65 64 63 62 61
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{ LA(5, 3), LA(5, 2), LA(5, 1), LA(5, 0), LA(4, 4), LA(4, 3), LA(4, 2) },
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// 76 75 74 73 72 60 59
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{ LA(7, 3), LA(7, 2), LA(7, 1), LA(7, 0), LA(6, 3), LA(4, 1), LA(4, 0) },
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// N/A N/A N/A N/A N/A N/A 68
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{ NA, NA, NA, NA, NA, NA, LA(5, 4) },
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// N/A N/A N/A N/A 71 70 69
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{ NA, NA, NA, NA, LA(6, 2), LA(6, 1), LA(6, 0) },
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};
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#define IS31_ADDR_DEFAULT 0x74 // AD connected to GND
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#define IS31_TIMEOUT 5000
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static GFXINLINE void init_board(GDisplay *g) {
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(void) g;
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/* I2C pins */
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palSetPadMode(GPIOB, 0, PAL_MODE_ALTERNATIVE_2); // PTB0/I2C0/SCL
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palSetPadMode(GPIOB, 1, PAL_MODE_ALTERNATIVE_2); // PTB1/I2C0/SDA
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palSetPadMode(GPIOB, 16, PAL_MODE_OUTPUT_PUSHPULL);
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palClearPad(GPIOB, 16);
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/* start I2C */
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i2cStart(&I2CD1, &i2ccfg);
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// try high drive (from kiibohd)
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I2CD1.i2c->C2 |= I2Cx_C2_HDRS;
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// try glitch fixing (from kiibohd)
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I2CD1.i2c->FLT = 4;
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}
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static GFXINLINE void post_init_board(GDisplay *g) {
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(void) g;
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}
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static GFXINLINE const uint8_t* get_led_mask(GDisplay* g) {
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(void) g;
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return led_mask;
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}
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static GFXINLINE uint8_t get_led_address(GDisplay* g, uint16_t x, uint16_t y)
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{
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(void) g;
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return led_mapping[y][x];
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}
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static GFXINLINE void set_hardware_shutdown(GDisplay* g, bool shutdown) {
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(void) g;
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if(!shutdown) {
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palSetPad(GPIOB, 16);
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}
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else {
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palClearPad(GPIOB, 16);
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}
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}
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static GFXINLINE void write_data(GDisplay *g, uint8_t* data, uint16_t length) {
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(void) g;
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i2cMasterTransmitTimeout(&I2CD1, IS31_ADDR_DEFAULT, data, length, 0, 0, US2ST(IS31_TIMEOUT));
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}
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#endif /* _GDISP_LLD_BOARD_H */
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