diff options
Diffstat (limited to 'drivers/issi/is31fl3731-simple.c')
| -rw-r--r-- | drivers/issi/is31fl3731-simple.c | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/drivers/issi/is31fl3731-simple.c b/drivers/issi/is31fl3731-simple.c deleted file mode 100644 index d295772f5e..0000000000 --- a/drivers/issi/is31fl3731-simple.c +++ /dev/null @@ -1,233 +0,0 @@ -/* Copyright 2017 Jason Williams - * Copyright 2018 Jack Humbert - * Copyright 2019 Clueboard - * - * 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 "is31fl3731-simple.h" -#include "i2c_master.h" -#include "wait.h" - -// This is a 7-bit address, that gets left-shifted and bit 0 -// set to 0 for write, 1 for read (as per I2C protocol) -// The address will vary depending on your wiring: -// 0b1110100 AD <-> GND -// 0b1110111 AD <-> VCC -// 0b1110101 AD <-> SCL -// 0b1110110 AD <-> SDA -#define ISSI_ADDR_DEFAULT 0x74 - -#define ISSI_REG_CONFIG 0x00 -#define ISSI_REG_CONFIG_PICTUREMODE 0x00 -#define ISSI_REG_CONFIG_AUTOPLAYMODE 0x08 -#define ISSI_REG_CONFIG_AUDIOPLAYMODE 0x18 - -#define ISSI_CONF_PICTUREMODE 0x00 -#define ISSI_CONF_AUTOFRAMEMODE 0x04 -#define ISSI_CONF_AUDIOMODE 0x08 - -#define ISSI_REG_PICTUREFRAME 0x01 - -#define ISSI_REG_SHUTDOWN 0x0A -#define ISSI_REG_AUDIOSYNC 0x06 - -#define ISSI_COMMANDREGISTER 0xFD -#define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine' - -#ifndef ISSI_TIMEOUT -# define ISSI_TIMEOUT 100 -#endif - -#ifndef ISSI_PERSISTENCE -# define ISSI_PERSISTENCE 0 -#endif - -// Transfer buffer for TWITransmitData() -uint8_t g_twi_transfer_buffer[20]; - -// These buffers match the IS31FL3731 PWM registers 0x24-0xB3. -// Storing them like this is optimal for I2C transfers to the registers. -// We could optimize this and take out the unused registers from these -// buffers and the transfers in IS31FL3731_write_pwm_buffer() but it's -// probably not worth the extra complexity. -uint8_t g_pwm_buffer[LED_DRIVER_COUNT][144]; -bool g_pwm_buffer_update_required[LED_DRIVER_COUNT] = {false}; - -/* There's probably a better way to init this... */ -#if LED_DRIVER_COUNT == 1 -uint8_t g_led_control_registers[LED_DRIVER_COUNT][18] = {{0}}; -#elif LED_DRIVER_COUNT == 2 -uint8_t g_led_control_registers[LED_DRIVER_COUNT][18] = {{0}, {0}}; -#elif LED_DRIVER_COUNT == 3 -uint8_t g_led_control_registers[LED_DRIVER_COUNT][18] = {{0}, {0}, {0}}; -#elif LED_DRIVER_COUNT == 4 -uint8_t g_led_control_registers[LED_DRIVER_COUNT][18] = {{0}, {0}, {0}, {0}}; -#endif -bool g_led_control_registers_update_required[LED_DRIVER_COUNT] = {false}; - -// This is the bit pattern in the LED control registers -// (for matrix A, add one to register for matrix B) -// -// reg - b7 b6 b5 b4 b3 b2 b1 b0 -// 0x00 - R08,R07,R06,R05,R04,R03,R02,R01 -// 0x02 - G08,G07,G06,G05,G04,G03,G02,R00 -// 0x04 - B08,B07,B06,B05,B04,B03,G01,G00 -// 0x06 - - , - , - , - , - ,B02,B01,B00 -// 0x08 - - , - , - , - , - , - , - , - -// 0x0A - B17,B16,B15, - , - , - , - , - -// 0x0C - G17,G16,B14,B13,B12,B11,B10,B09 -// 0x0E - R17,G15,G14,G13,G12,G11,G10,G09 -// 0x10 - R16,R15,R14,R13,R12,R11,R10,R09 - -void IS31FL3731_write_register(uint8_t addr, uint8_t reg, uint8_t data) { - g_twi_transfer_buffer[0] = reg; - g_twi_transfer_buffer[1] = data; - -#if ISSI_PERSISTENCE > 0 - for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) { - if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) == 0) { - break; - } - } -#else - i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT); -#endif -} - -void IS31FL3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) { - // assumes bank is already selected - - // transmit PWM registers in 9 transfers of 16 bytes - // g_twi_transfer_buffer[] is 20 bytes - - // iterate over the pwm_buffer contents at 16 byte intervals - for (int i = 0; i < 144; i += 16) { - // set the first register, e.g. 0x24, 0x34, 0x44, etc. - g_twi_transfer_buffer[0] = 0x24 + i; - // copy the data from i to i+15 - // device will auto-increment register for data after the first byte - // thus this sets registers 0x24-0x33, 0x34-0x43, etc. in one transfer - for (int j = 0; j < 16; j++) { - g_twi_transfer_buffer[1 + j] = pwm_buffer[i + j]; - } - -#if ISSI_PERSISTENCE > 0 - for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) { - if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) == 0) break; - } -#else - i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT); -#endif - } -} - -void IS31FL3731_init(uint8_t addr) { - // In order to avoid the LEDs being driven with garbage data - // in the LED driver's PWM registers, first enable software shutdown, - // then set up the mode and other settings, clear the PWM registers, - // then disable software shutdown. - - // select "function register" bank - IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG); - - // enable software shutdown - IS31FL3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00); - - // this delay was copied from other drivers, might not be needed - wait_ms(10); - - // picture mode - IS31FL3731_write_register(addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE); - // display frame 0 - IS31FL3731_write_register(addr, ISSI_REG_PICTUREFRAME, 0x00); - // audio sync off - IS31FL3731_write_register(addr, ISSI_REG_AUDIOSYNC, 0x00); - - // select bank 0 - IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, 0); - - // turn off all LEDs in the LED control register - for (int i = 0x00; i <= 0x11; i++) { - IS31FL3731_write_register(addr, i, 0x00); - } - - // turn off all LEDs in the blink control register (not really needed) - for (int i = 0x12; i <= 0x23; i++) { - IS31FL3731_write_register(addr, i, 0x00); - } - - // set PWM on all LEDs to 0 - for (int i = 0x24; i <= 0xB3; i++) { - IS31FL3731_write_register(addr, i, 0x00); - } - - // select "function register" bank - IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG); - - // disable software shutdown - IS31FL3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x01); - - // select bank 0 and leave it selected. - // most usage after initialization is just writing PWM buffers in bank 0 - // as there's not much point in double-buffering - IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, 0); -} - -void IS31FL3731_set_value(int index, uint8_t value) { - if (index >= 0 && index < DRIVER_LED_TOTAL) { - is31_led led = g_is31_leds[index]; - - // Subtract 0x24 to get the second index of g_pwm_buffer - g_pwm_buffer[led.driver][led.v - 0x24] = value; - g_pwm_buffer_update_required[led.driver] = true; - } -} - -void IS31FL3731_set_value_all(uint8_t value) { - for (int i = 0; i < DRIVER_LED_TOTAL; i++) { - IS31FL3731_set_value(i, value); - } -} - -void IS31FL3731_set_led_control_register(uint8_t index, bool value) { - is31_led led = g_is31_leds[index]; - - uint8_t control_register = (led.v - 0x24) / 8; - uint8_t bit_value = (led.v - 0x24) % 8; - - if (value) { - g_led_control_registers[led.driver][control_register] |= (1 << bit_value); - } else { - g_led_control_registers[led.driver][control_register] &= ~(1 << bit_value); - } - - g_led_control_registers_update_required[led.driver] = true; -} - -void IS31FL3731_update_pwm_buffers(uint8_t addr, uint8_t index) { - if (g_pwm_buffer_update_required[index]) { - IS31FL3731_write_pwm_buffer(addr, g_pwm_buffer[index]); - g_pwm_buffer_update_required[index] = false; - } -} - -void IS31FL3731_update_led_control_registers(uint8_t addr, uint8_t index) { - if (g_led_control_registers_update_required[index]) { - for (int i = 0; i < 18; i++) { - IS31FL3731_write_register(addr, i, g_led_control_registers[index][i]); - } - g_led_control_registers_update_required[index] = false; - } -} |