keyboards/whitefox/board_is31fl3731c.h

   1 /*
   2 Copyright 2016 Fred Sundvik <fsundvik@gmail.com>
   3
   4 This program is free software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #ifndef _GDISP_LLD_BOARD_H
  19 #define _GDISP_LLD_BOARD_H
  20
  21 static const I2CConfig i2ccfg = {
  22   400000 // clock speed (Hz); 400kHz max for IS31
  23 };
  24
  25 static const uint8_t led_mask[] = {
  26         0xFF, 0x00, /* C1-1 -> C1-16 */
  27         0xFF, 0x00, /* C2-1 -> C2-16 */
  28         0xFF, 0x00, /* C3-1 -> C3-16 */
  29         0xFF, 0x00, /* C4-1 -> C4-16 */
  30         0xFF, 0x00, /* C5-1 -> C5-16 */
  31         0xFF, 0x00, /* C6-1 -> C6-16 */
  32         0xFF, 0x00, /* C7-1 -> C7-16 */
  33         0xFF, 0x00, /* C8-1 -> C8-16 */
  34         0xFF, 0x00, /* C9-1 -> C9-16 */
  35 };
  36
  37 // The address of the LED
  38 #define LA(c, r) (c + r * 16 )
  39 // Need to be an address that is not mapped, but inside the range of the controller matrix
  40 #define NA LA(8, 8)
  41
  42 // The numbers in the comments are the led numbers DXX on the PCB
  43 // The mapping is taken from the schematic of left hand side
  44 static const uint8_t led_mapping[GDISP_SCREEN_HEIGHT][GDISP_SCREEN_WIDTH] = {
  45 //   1         2         3         4         5         6         7         8         9         10        11        12        13        14        15        16
  46    { LA(0, 0), LA(1, 0), LA(2, 0), LA(3, 0), LA(4, 0), LA(5, 0), LA(6, 0), LA(7, 0), LA(0, 1), LA(1, 1), LA(2, 1), LA(3, 1), LA(4, 1), LA(5, 1), LA(6, 1), LA(7, 1)},
  47 //   17        18        19        20        21        22        23        24        25        26                  27        28        29        30        31
  48    { LA(0, 2), LA(1, 2), LA(2, 2), LA(3, 2), LA(4, 2), LA(5, 2), LA(6, 2), LA(7, 2), LA(0, 3), LA(1, 3), NA,       LA(2, 3), LA(3, 3), LA(4, 3), LA(5, 3), LA(6, 3)},
  49 //   32        33        34        35        36        37        38        39        40        41                  42        43        44        45        46
  50    { LA(7, 3), LA(0, 4), LA(1, 4), LA(2, 4), LA(3, 4), LA(4, 4), LA(5, 4), LA(6, 4), LA(7, 4), LA(0, 5), NA,       LA(1, 5), LA(2, 5), LA(3, 5), LA(4, 5), LA(5, 5)},
  51 //   47        48        49        50        51        52        53        54        55        56                  57        58        59        60        61
  52    { LA(6, 5), LA(7, 5), LA(0, 6), LA(1, 6), LA(2, 6), LA(3, 6), LA(4, 6), LA(5, 6), LA(6, 6), LA(7, 6), NA,       LA(0, 7), LA(1, 7), LA(2, 7), LA(3, 7), LA(4, 7)},
  53 //   62        63        64                                      65                                      66        67        68        69        70        71
  54    { LA(5, 7), LA(6, 7), LA(7, 7), NA,       NA,       NA,       LA(0, 8), NA,       NA,       NA,       LA(1, 8), LA(2, 8), LA(3, 8), LA(4, 8), LA(5, 8), LA(6, 8)},
  55 };
  56
  57
  58 #define IS31_ADDR_DEFAULT 0x74 // AD connected to GND
  59 #define IS31_TIMEOUT 5000
  60
  61 static GFXINLINE void init_board(GDisplay *g) {
  62     (void) g;
  63     /* I2C pins */
  64     palSetPadMode(GPIOB, 0, PAL_MODE_ALTERNATIVE_2); // PTB0/I2C0/SCL
  65     palSetPadMode(GPIOB, 1, PAL_MODE_ALTERNATIVE_2); // PTB1/I2C0/SDA
  66     palSetPadMode(GPIOB, 16, PAL_MODE_OUTPUT_PUSHPULL);
  67     palClearPad(GPIOB, 16);
  68     /* start I2C */
  69     i2cStart(&I2CD1, &i2ccfg);
  70     // try high drive (from kiibohd)
  71     I2CD1.i2c->C2 |= I2Cx_C2_HDRS;
  72     // try glitch fixing (from kiibohd)
  73     I2CD1.i2c->FLT = 4;
  74 }
  75
  76 static GFXINLINE void post_init_board(GDisplay *g) {
  77         (void) g;
  78 }
  79
  80 static GFXINLINE const uint8_t* get_led_mask(GDisplay* g) {
  81     (void) g;
  82     return led_mask;
  83 }
  84
  85 static GFXINLINE uint8_t get_led_address(GDisplay* g, uint16_t x, uint16_t y)
  86 {
  87     (void) g;
  88     return led_mapping[y][x];
  89 }
  90
  91 static GFXINLINE void set_hardware_shutdown(GDisplay* g, bool shutdown) {
  92     (void) g;
  93     if(!shutdown) {
  94         palSetPad(GPIOB, 16);
  95     }
  96     else {
  97         palClearPad(GPIOB, 16);
  98     }
  99 }
 100
 101 static GFXINLINE void write_data(GDisplay *g, uint8_t* data, uint16_t length) {
 102         (void) g;
 103         i2cMasterTransmitTimeout(&I2CD1, IS31_ADDR_DEFAULT, data, length, 0, 0, TIME_US2I(IS31_TIMEOUT));
 104 }
 105
 106 #endif /* _GDISP_LLD_BOARD_H */