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141 lines
3.6 KiB
141 lines
3.6 KiB
/* Copyright 2017 Jason Williams
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* Copyright 2018 Jack Humbert
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* Copyright 2019 Clueboard
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*
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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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*
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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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*
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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 IS31FL3235A_DRIVER_H
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#define IS31FL3235A_DRIVER_H
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// This is a 7-bit address, that gets left-shifted and bit 0
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// set to 0 for write, 1 for read (as per I2C protocol)
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// The address will vary depending on your wiring:
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// 0b0111111 AD <-> VCC
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// 0b0111110 AD <-> SDA
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// 0b0111101 AD <-> SCL
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// 0b0111100 AD <-> GND
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#ifndef IS31FL3235A_COUNT
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#define IS31FL3235A_COUNT 1
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#endif
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#ifndef IS31FL3235A_DRIVER_ADDR_1
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#define IS31FL3235A_DRIVER_ADDR_1 0b0111111
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//#define IS31FL3235A_DRIVER_ADDR_1 0x7E
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#endif
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#ifndef IS31FL3235A_DRIVER_ADDR_2
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#define IS31FL3235A_DRIVER_ADDR_2 0b0111110
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#endif
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#ifndef IS31FL3235A_DRIVER_ADDR_3
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#define IS31FL3235A_DRIVER_ADDR_3 0b0111101
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#endif
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#ifndef IS31FL3235A_DRIVER_ADDR_4
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#define IS31FL3235A_DRIVER_ADDR_4 0b0111100
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#endif
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// This is the max number of LEDs this driver supports per IC
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#define IS31FL3235A_LED_MAX 28
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#ifndef IS31FL3235A_LED_COUNT
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#define IS31FL3235A_LED_COUNT IS31FL3235A_LED_MAX
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#endif
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// Registers we will need to write to
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#define ISSI_REG_SHUTDOWN 0x00 // Control the software shutdown state of the controller
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#define ISSI_REG_GLOBAL_CONTROL 0x4A // Write 0 for normal operation, 1 to shutdown all LEDs
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#define ISSI_REG_OUTPUT_FREQ 0x4B // Write 0 for 3kHz PWM, 1 for 22kHz
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#define ISSI_REG_RESET_REG 0x4F // Write 0 to reset all registers to default value
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void IS31FL3235A_init(uint8_t addr);
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void IS31FL3235A_write_register(uint8_t addr, uint8_t reg, uint8_t data);
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void IS31FL3235A_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
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void IS31FL3235A_set_value(int index, uint8_t value);
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void IS31FL3235A_set_value_all(uint8_t value);
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void IS31FL3235A_set_led_control_register(uint8_t index, bool value);
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// This should not be called from an interrupt
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// (eg. from a timer interrupt).
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// Call this while idle (in between matrix scans).
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// If the buffer is dirty, it will update the driver with the buffer.
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void IS31FL3235A_update_pwm_buffers(uint8_t addr, uint8_t index);
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void IS31FL3235A_update_led_control_registers(uint8_t addr, uint8_t index);
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// The address for each LED in the is31fl3235a's Control Register
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enum control_register {
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CR_OUT1 = 0x2A,
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CR_OUT2,
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CR_OUT3,
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CR_OUT4,
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CR_OUT5,
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CR_OUT6,
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CR_OUT7,
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CR_OUT8,
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CR_OUT9,
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CR_OUT10,
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CR_OUT11,
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CR_OUT12,
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CR_OUT13,
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CR_OUT14,
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CR_OUT15,
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CR_OUT16,
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CR_OUT17,
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CR_OUT18,
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CR_OUT19,
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CR_OUT20,
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CR_OUT21,
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CR_OUT22,
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CR_OUT23,
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CR_OUT24,
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CR_OUT25,
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CR_OUT26,
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CR_OUT27,
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CR_OUT28
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};
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// The address for each LED in the is31fl3235a's PWM Register
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enum pwm_register {
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OUT1 = 0x05,
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OUT2,
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OUT3,
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OUT4,
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OUT5,
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OUT6,
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OUT7,
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OUT8,
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OUT9,
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OUT10,
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OUT11,
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OUT12,
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OUT13,
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OUT14,
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OUT15,
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OUT16,
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OUT17,
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OUT18,
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OUT19,
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OUT20,
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OUT21,
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OUT22,
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OUT23,
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OUT24,
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OUT25,
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OUT26,
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OUT27,
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OUT28
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};
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#endif // IS31FL3235A_DRIVER_H
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