diff options
Diffstat (limited to 'drivers/led')
| -rw-r--r-- | drivers/led/apa102.c | 151 | ||||
| -rw-r--r-- | drivers/led/apa102.h | 41 | ||||
| -rw-r--r-- | drivers/led/aw20216.c | 141 | ||||
| -rw-r--r-- | drivers/led/aw20216.h | 253 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3218.c | 96 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3218.h | 25 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3731-simple.c | 233 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3731-simple.h | 208 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3731.c | 237 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3731.h | 209 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3733.c | 237 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3733.h | 252 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3736.c | 269 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3736.h | 169 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3737.c | 222 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3737.h | 204 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3741.c | 255 | ||||
| -rw-r--r-- | drivers/led/issi/is31fl3741.h | 421 |
18 files changed, 3623 insertions, 0 deletions
diff --git a/drivers/led/apa102.c b/drivers/led/apa102.c new file mode 100644 index 0000000000..7396dc3c55 --- /dev/null +++ b/drivers/led/apa102.c @@ -0,0 +1,151 @@ +/* Copyright 2020 Aldehir Rojas + * Copyright 2017 Mikkel (Duckle29) + * + * 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 "apa102.h" +#include "quantum.h" + +#ifndef APA102_NOPS +# if defined(__AVR__) +# define APA102_NOPS 0 // AVR at 16 MHz already spends 62.5 ns per clock, so no extra delay is needed +# elif defined(PROTOCOL_CHIBIOS) + +# include "hal.h" +# if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F3XX) || defined(STM32F4XX) || defined(STM32L0XX) +# define APA102_NOPS (100 / (1000000000L / (STM32_SYSCLK / 4))) // This calculates how many loops of 4 nops to run to delay 100 ns +# else +# error("APA102_NOPS configuration required") +# define APA102_NOPS 0 // this just pleases the compile so the above error is easier to spot +# endif +# endif +#endif + +#define io_wait \ + do { \ + for (int i = 0; i < APA102_NOPS; i++) { \ + __asm__ volatile("nop\n\t" \ + "nop\n\t" \ + "nop\n\t" \ + "nop\n\t"); \ + } \ + } while (0) + +#define APA102_SEND_BIT(byte, bit) \ + do { \ + writePin(RGB_DI_PIN, (byte >> bit) & 1); \ + io_wait; \ + writePinHigh(RGB_CI_PIN); \ + io_wait; \ + writePinLow(RGB_CI_PIN); \ + io_wait; \ + } while (0) + +uint8_t apa102_led_brightness = APA102_DEFAULT_BRIGHTNESS; + +void static apa102_start_frame(void); +void static apa102_end_frame(uint16_t num_leds); + +void static apa102_send_frame(uint8_t red, uint8_t green, uint8_t blue, uint8_t brightness); +void static apa102_send_byte(uint8_t byte); + +void apa102_setleds(LED_TYPE *start_led, uint16_t num_leds) { + LED_TYPE *end = start_led + num_leds; + + apa102_start_frame(); + for (LED_TYPE *led = start_led; led < end; led++) { + apa102_send_frame(led->r, led->g, led->b, apa102_led_brightness); + } + apa102_end_frame(num_leds); +} + +// Overwrite the default rgblight_call_driver to use apa102 driver +void rgblight_call_driver(LED_TYPE *start_led, uint8_t num_leds) { apa102_setleds(start_led, num_leds); } + +void static apa102_init(void) { + setPinOutput(RGB_DI_PIN); + setPinOutput(RGB_CI_PIN); + + writePinLow(RGB_DI_PIN); + writePinLow(RGB_CI_PIN); +} + +void apa102_set_brightness(uint8_t brightness) { + if (brightness > APA102_MAX_BRIGHTNESS) { + apa102_led_brightness = APA102_MAX_BRIGHTNESS; + } else if (brightness < 0) { + apa102_led_brightness = 0; + } else { + apa102_led_brightness = brightness; + } +} + +void static apa102_send_frame(uint8_t red, uint8_t green, uint8_t blue, uint8_t brightness) { + apa102_send_byte(0b11100000 | brightness); + apa102_send_byte(blue); + apa102_send_byte(green); + apa102_send_byte(red); +} + +void static apa102_start_frame(void) { + apa102_init(); + for (uint16_t i = 0; i < 4; i++) { + apa102_send_byte(0); + } +} + +void static apa102_end_frame(uint16_t num_leds) { + // This function has been taken from: https://github.com/pololu/apa102-arduino/blob/master/APA102.h + // and adapted. The code is MIT licensed. I think thats compatible? + // + // The data stream seen by the last LED in the chain will be delayed by + // (count - 1) clock edges, because each LED before it inverts the clock + // line and delays the data by one clock edge. Therefore, to make sure + // the last LED actually receives the data we wrote, the number of extra + // edges we send at the end of the frame must be at least (count - 1). + // + // Assuming we only want to send these edges in groups of size K, the + // C/C++ expression for the minimum number of groups to send is: + // + // ((count - 1) + (K - 1)) / K + // + // The C/C++ expression above is just (count - 1) divided by K, + // rounded up to the nearest whole number if there is a remainder. + // + // We set K to 16 and use the formula above as the number of frame-end + // bytes to transfer. Each byte has 16 clock edges. + // + // We are ignoring the specification for the end frame in the APA102 + // datasheet, which says to send 0xFF four times, because it does not work + // when you have 66 LEDs or more, and also it results in unwanted white + // pixels if you try to update fewer LEDs than are on your LED strip. + uint16_t iterations = (num_leds + 14) / 16; + for (uint16_t i = 0; i < iterations; i++) { + apa102_send_byte(0); + } + + apa102_init(); +} + +void static apa102_send_byte(uint8_t byte) { + APA102_SEND_BIT(byte, 7); + APA102_SEND_BIT(byte, 6); + APA102_SEND_BIT(byte, 5); + APA102_SEND_BIT(byte, 4); + APA102_SEND_BIT(byte, 3); + APA102_SEND_BIT(byte, 2); + APA102_SEND_BIT(byte, 1); + APA102_SEND_BIT(byte, 0); +} diff --git a/drivers/led/apa102.h b/drivers/led/apa102.h new file mode 100644 index 0000000000..58cf020c1e --- /dev/null +++ b/drivers/led/apa102.h @@ -0,0 +1,41 @@ +/* Copyright 2020 Aldehir Rojas + * Copyright 2017 Mikkel (Duckle29) + * + * 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/>. + */ + +#pragma once + +#include "color.h" + +#ifndef APA102_DEFAULT_BRIGHTNESS +# define APA102_DEFAULT_BRIGHTNESS 31 +#endif + +#define APA102_MAX_BRIGHTNESS 31 + +extern uint8_t apa102_led_brightness; + +/* User Interface + * + * Input: + * start_led: An array of GRB data describing the LED colors + * num_leds: The number of LEDs to write + * + * The functions will perform the following actions: + * - Set the data-out pin as output + * - Send out the LED data + */ +void apa102_setleds(LED_TYPE *start_led, uint16_t num_leds); +void apa102_set_brightness(uint8_t brightness); diff --git a/drivers/led/aw20216.c b/drivers/led/aw20216.c new file mode 100644 index 0000000000..c608c0ab44 --- /dev/null +++ b/drivers/led/aw20216.c @@ -0,0 +1,141 @@ +/* Copyright 2021 Jasper Chan + * + * 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 "aw20216.h" +#include "spi_master.h" + +/* The AW20216 appears to be somewhat similar to the IS31FL743, although quite + * a few things are different, such as the command byte format and page ordering. + * The LED addresses start from 0x00 instead of 0x01. + */ +#define AWINIC_ID 0b1010 << 4 + +#define AW_PAGE_FUNCTION 0x00 << 1 // PG0, Function registers +#define AW_PAGE_PWM 0x01 << 1 // PG1, LED PWM control +#define AW_PAGE_SCALING 0x02 << 1 // PG2, LED current scaling control +#define AW_PAGE_PATCHOICE 0x03 << 1 // PG3, Pattern choice? +#define AW_PAGE_PWMSCALING 0x04 << 1 // PG4, LED PWM + Scaling control? + +#define AW_WRITE 0 +#define AW_READ 1 + +#define AW_REG_CONFIGURATION 0x00 // PG0 +#define AW_REG_GLOBALCURRENT 0x01 // PG0 + +// Default value of AW_REG_CONFIGURATION +// D7:D4 = 1011, SWSEL (SW1~SW12 active) +// D3 = 0?, reserved (apparently this should be 1 but it doesn't seem to matter) +// D2:D1 = 00, OSDE (open/short detection enable) +// D0 = 0, CHIPEN (write 1 to enable LEDs when hardware enable pulled high) +#define AW_CONFIG_DEFAULT 0b10110000 +#define AW_CHIPEN 1 + +#define AW_PWM_REGISTER_COUNT 216 + +#ifndef AW_SCALING_MAX +# define AW_SCALING_MAX 150 +#endif + +#ifndef AW_GLOBAL_CURRENT_MAX +# define AW_GLOBAL_CURRENT_MAX 150 +#endif + +#ifndef AW_SPI_DIVISOR +# define AW_SPI_DIVISOR 4 +#endif + +uint8_t g_pwm_buffer[DRIVER_COUNT][AW_PWM_REGISTER_COUNT]; +bool g_pwm_buffer_update_required[DRIVER_COUNT] = {false}; + +bool AW20216_write(pin_t cs_pin, uint8_t page, uint8_t reg, uint8_t* data, uint8_t len) { + static uint8_t s_spi_transfer_buffer[2] = {0}; + + if (!spi_start(cs_pin, false, 0, AW_SPI_DIVISOR)) { + spi_stop(); + return false; + } + + s_spi_transfer_buffer[0] = (AWINIC_ID | page | AW_WRITE); + s_spi_transfer_buffer[1] = reg; + + if (spi_transmit(s_spi_transfer_buffer, 2) != SPI_STATUS_SUCCESS) { + spi_stop(); + return false; + } + + if (spi_transmit(data, len) != SPI_STATUS_SUCCESS) { + spi_stop(); + return false; + } + + spi_stop(); + return true; +} + +static inline bool AW20216_write_register(pin_t cs_pin, uint8_t page, uint8_t reg, uint8_t value) { + // Little wrapper so callers need not care about sending a buffer + return AW20216_write(cs_pin, page, reg, &value, 1); +} + +static void AW20216_init_scaling(pin_t cs_pin) { + // Set constant current to the max, control brightness with PWM + for (uint8_t i = 0; i < AW_PWM_REGISTER_COUNT; i++) { + AW20216_write_register(cs_pin, AW_PAGE_SCALING, i, AW_SCALING_MAX); + } +} + +static inline void AW20216_init_current_limit(pin_t cs_pin) { + // Push config + AW20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_GLOBALCURRENT, AW_GLOBAL_CURRENT_MAX); +} + +static inline void AW20216_soft_enable(pin_t cs_pin) { + // Push config + AW20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_CONFIGURATION, AW_CONFIG_DEFAULT | AW_CHIPEN); +} + +void AW20216_init(pin_t cs_pin, pin_t en_pin) { + setPinOutput(en_pin); + writePinHigh(en_pin); + + // Drivers should start with all scaling and PWM registers as off + AW20216_init_current_limit(cs_pin); + AW20216_init_scaling(cs_pin); + + AW20216_soft_enable(cs_pin); +} + +void AW20216_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { + aw_led led = g_aw_leds[index]; + + g_pwm_buffer[led.driver][led.r] = red; + g_pwm_buffer[led.driver][led.g] = green; + g_pwm_buffer[led.driver][led.b] = blue; + g_pwm_buffer_update_required[led.driver] = true; +} + +void AW20216_set_color_all(uint8_t red, uint8_t green, uint8_t blue) { + for (uint8_t i = 0; i < DRIVER_LED_TOTAL; i++) { + AW20216_set_color(i, red, green, blue); + } +} + +void AW20216_update_pwm_buffers(pin_t cs_pin, uint8_t index) { + if (g_pwm_buffer_update_required[index]) { + AW20216_write(cs_pin, AW_PAGE_PWM, 0, g_pwm_buffer[index], AW_PWM_REGISTER_COUNT); + } + g_pwm_buffer_update_required[index] = false; +} diff --git a/drivers/led/aw20216.h b/drivers/led/aw20216.h new file mode 100644 index 0000000000..97ac6dc5bf --- /dev/null +++ b/drivers/led/aw20216.h @@ -0,0 +1,253 @@ +/* Copyright 2021 Jasper Chan (Gigahawk) + * + * 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/>. + */ + +#pragma once + +#include <stdint.h> +#include <stdbool.h> +#include "progmem.h" +#include "gpio.h" + +typedef struct aw_led { + uint8_t driver : 2; + uint8_t r; + uint8_t g; + uint8_t b; +} aw_led; + +extern const aw_led __flash g_aw_leds[DRIVER_LED_TOTAL]; + +void AW20216_init(pin_t cs_pin, pin_t en_pin); +void AW20216_set_color(int index, uint8_t red, uint8_t green, uint8_t blue); +void AW20216_set_color_all(uint8_t red, uint8_t green, uint8_t blue); +void AW20216_update_pwm_buffers(pin_t cs_pin, uint8_t index); + +#define CS1_SW1 0x00 +#define CS2_SW1 0x01 +#define CS3_SW1 0x02 +#define CS4_SW1 0x03 +#define CS5_SW1 0x04 +#define CS6_SW1 0x05 +#define CS7_SW1 0x06 +#define CS8_SW1 0x07 +#define CS9_SW1 0x08 +#define CS10_SW1 0x09 +#define CS11_SW1 0x0A +#define CS12_SW1 0x0B +#define CS13_SW1 0x0C +#define CS14_SW1 0x0D +#define CS15_SW1 0x0E +#define CS16_SW1 0x0F +#define CS17_SW1 0x10 +#define CS18_SW1 0x11 +#define CS1_SW2 0x12 +#define CS2_SW2 0x13 +#define CS3_SW2 0x14 +#define CS4_SW2 0x15 +#define CS5_SW2 0x16 +#define CS6_SW2 0x17 +#define CS7_SW2 0x18 +#define CS8_SW2 0x19 +#define CS9_SW2 0x1A +#define CS10_SW2 0x1B +#define CS11_SW2 0x1C +#define CS12_SW2 0x1D +#define CS13_SW2 0x1E +#define CS14_SW2 0x1F +#define CS15_SW2 0x20 +#define CS16_SW2 0x21 +#define CS17_SW2 0x22 +#define CS18_SW2 0x23 +#define CS1_SW3 0x24 +#define CS2_SW3 0x25 +#define CS3_SW3 0x26 +#define CS4_SW3 0x27 +#define CS5_SW3 0x28 +#define CS6_SW3 0x29 +#define CS7_SW3 0x2A +#define CS8_SW3 0x2B +#define CS9_SW3 0x2C +#define CS10_SW3 0x2D +#define CS11_SW3 0x2E +#define CS12_SW3 0x2F +#define CS13_SW3 0x30 +#define CS14_SW3 0x31 +#define CS15_SW3 0x32 +#define CS16_SW3 0x33 +#define CS17_SW3 0x34 +#define CS18_SW3 0x35 +#define CS1_SW4 0x36 +#define CS2_SW4 0x37 +#define CS3_SW4 0x38 +#define CS4_SW4 0x39 +#define CS5_SW4 0x3A +#define CS6_SW4 0x3B +#define CS7_SW4 0x3C +#define CS8_SW4 0x3D +#define CS9_SW4 0x3E +#define CS10_SW4 0x3F +#define CS11_SW4 0x40 +#define CS12_SW4 0x41 +#define CS13_SW4 0x42 +#define CS14_SW4 0x43 +#define CS15_SW4 0x44 +#define CS16_SW4 0x45 +#define CS17_SW4 0x46 +#define CS18_SW4 0x47 +#define CS1_SW5 0x48 +#define CS2_SW5 0x49 +#define CS3_SW5 0x4A +#define CS4_SW5 0x4B +#define CS5_SW5 0x4C +#define CS6_SW5 0x4D +#define CS7_SW5 0x4E +#define CS8_SW5 0x4F +#define CS9_SW5 0x50 +#define CS10_SW5 0x51 +#define CS11_SW5 0x52 +#define CS12_SW5 0x53 +#define CS13_SW5 0x54 +#define CS14_SW5 0x55 +#define CS15_SW5 0x56 +#define CS16_SW5 0x57 +#define CS17_SW5 0x58 +#define CS18_SW5 0x59 +#define CS1_SW6 0x5A +#define CS2_SW6 0x5B +#define CS3_SW6 0x5C +#define CS4_SW6 0x5D +#define CS5_SW6 0x5E +#define CS6_SW6 0x5F +#define CS7_SW6 0x60 +#define CS8_SW6 0x61 +#define CS9_SW6 0x62 +#define CS10_SW6 0x63 +#define CS11_SW6 0x64 +#define CS12_SW6 0x65 +#define CS13_SW6 0x66 +#define CS14_SW6 0x67 +#define CS15_SW6 0x68 +#define CS16_SW6 0x69 +#define CS17_SW6 0x6A +#define CS18_SW6 0x6B +#define CS1_SW7 0x6C +#define CS2_SW7 0x6D +#define CS3_SW7 0x6E +#define CS4_SW7 0x6F +#define CS5_SW7 0x70 +#define CS6_SW7 0x71 +#define CS7_SW7 0x72 +#define CS8_SW7 0x73 +#define CS9_SW7 0x74 +#define CS10_SW7 0x75 +#define CS11_SW7 0x76 +#define CS12_SW7 0x77 +#define CS13_SW7 0x78 +#define CS14_SW7 0x79 +#define CS15_SW7 0x7A +#define CS16_SW7 0x7B +#define CS17_SW7 0x7C +#define CS18_SW7 0x7D +#define CS1_SW8 0x7E +#define CS2_SW8 0x7F +#define CS3_SW8 0x80 +#define CS4_SW8 0x81 +#define CS5_SW8 0x82 +#define CS6_SW8 0x83 +#define CS7_SW8 0x84 +#define CS8_SW8 0x85 +#define CS9_SW8 0x86 +#define CS10_SW8 0x87 +#define CS11_SW8 0x88 +#define CS12_SW8 0x89 +#define CS13_SW8 0x8A +#define CS14_SW8 0x8B +#define CS15_SW8 0x8C +#define CS16_SW8 0x8D +#define CS17_SW8 0x8E +#define CS18_SW8 0x8F +#define CS1_SW9 0x90 +#define CS2_SW9 0x91 +#define CS3_SW9 0x92 +#define CS4_SW9 0x93 +#define CS5_SW9 0x94 +#define CS6_SW9 0x95 +#define CS7_SW9 0x96 +#define CS8_SW9 0x97 +#define CS9_SW9 0x98 +#define CS10_SW9 0x99 +#define CS11_SW9 0x9A +#define CS12_SW9 0x9B +#define CS13_SW9 0x9C +#define CS14_SW9 0x9D +#define CS15_SW9 0x9E +#define CS16_SW9 0x9F +#define CS17_SW9 0xA0 +#define CS18_SW9 0xA1 +#define CS1_SW10 0xA2 +#define CS2_SW10 0xA3 +#define CS3_SW10 0xA4 +#define CS4_SW10 0xA5 +#define CS5_SW10 0xA6 +#define CS6_SW10 0xA7 +#define CS7_SW10 0xA8 +#define CS8_SW10 0xA9 +#define CS9_SW10 0xAA +#define CS10_SW10 0xAB +#define CS11_SW10 0xAC +#define CS12_SW10 0xAD +#define CS13_SW10 0xAE +#define CS14_SW10 0xAF +#define CS15_SW10 0xB0 +#define CS16_SW10 0xB1 +#define CS17_SW10 0xB2 +#define CS18_SW10 0xB3 +#define CS1_SW11 0xB4 +#define CS2_SW11 0xB5 +#define CS3_SW11 0xB6 +#define CS4_SW11 0xB7 +#define CS5_SW11 0xB8 +#define CS6_SW11 0xB9 +#define CS7_SW11 0xBA +#define CS8_SW11 0xBB +#define CS9_SW11 0xBC +#define CS10_SW11 0xBD +#define CS11_SW11 0xBE +#define CS12_SW11 0xBF +#define CS13_SW11 0xC0 +#define CS14_SW11 0xC1 +#define CS15_SW11 0xC2 +#define CS16_SW11 0xC3 +#define CS17_SW11 0xC4 +#define CS18_SW11 0xC5 +#define CS1_SW12 0xC6 +#define CS2_SW12 0xC7 +#define CS3_SW12 0xC8 +#define CS4_SW12 0xC9 +#define CS5_SW12 0xCA +#define CS6_SW12 0xCB +#define CS7_SW12 0xCC +#define CS8_SW12 0xCD +#define CS9_SW12 0xCE +#define CS10_SW12 0xCF +#define CS11_SW12 0xD0 +#define CS12_SW12 0xD1 +#define CS13_SW12 0xD2 +#define CS14_SW12 0xD3 +#define CS15_SW12 0xD4 +#define CS16_SW12 0xD5 +#define CS17_SW12 0xD6 +#define CS18_SW12 0xD7 diff --git a/drivers/led/issi/is31fl3218.c b/drivers/led/issi/is31fl3218.c new file mode 100644 index 0000000000..d43863ac4b --- /dev/null +++ b/drivers/led/issi/is31fl3218.c @@ -0,0 +1,96 @@ +/* Copyright 2018 Jason Williams (Wilba) + * + * 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 "is31fl3218.h" +#include "i2c_master.h" + +// This is the full 8-bit address +#define ISSI_ADDRESS 0b10101000 + +// These are the register addresses +#define ISSI_REG_SHUTDOWN 0x00 +#define ISSI_REG_PWM 0x01 +#define ISSI_REG_CONTROL 0x13 +#define ISSI_REG_UPDATE 0x16 +#define ISSI_REG_RESET 0x17 + +// Default timeout if no I2C response +#define ISSI_TIMEOUT 100 + +// Reusable buffer for transfers +uint8_t g_twi_transfer_buffer[20]; + +// IS31FL3218 has 18 PWM outputs and a fixed I2C address, so no chaining. +// If used as RGB LED driver, LEDs are assigned RGB,RGB,RGB,RGB,RGB,RGB +uint8_t g_pwm_buffer[18]; +bool g_pwm_buffer_update_required = false; + +void IS31FL3218_write_register(uint8_t reg, uint8_t data) { + g_twi_transfer_buffer[0] = reg; + g_twi_transfer_buffer[1] = data; + i2c_transmit(ISSI_ADDRESS, g_twi_transfer_buffer, 2, ISSI_TIMEOUT); +} + +void IS31FL3218_write_pwm_buffer(uint8_t *pwm_buffer) { + g_twi_transfer_buffer[0] = ISSI_REG_PWM; + for (int i = 0; i < 18; i++) { + g_twi_transfer_buffer[1 + i] = pwm_buffer[i]; + } + + i2c_transmit(ISSI_ADDRESS, g_twi_transfer_buffer, 19, ISSI_TIMEOUT); +} + +void IS31FL3218_init(void) { + // In case we ever want to reinitialize (?) + IS31FL3218_write_register(ISSI_REG_RESET, 0x00); + + // Turn off software shutdown + IS31FL3218_write_register(ISSI_REG_SHUTDOWN, 0x01); + + // Set all PWM values to zero + for (uint8_t i = 0; i < 18; i++) { + IS31FL3218_write_register(ISSI_REG_PWM + i, 0x00); + } + + // Enable all channels + for (uint8_t i = 0; i < 3; i++) { + IS31FL3218_write_register(ISSI_REG_CONTROL + i, 0b00111111); + } + + // Load PWM registers and LED Control register data + IS31FL3218_write_register(ISSI_REG_UPDATE, 0x01); +} + +void IS31FL3218_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { + g_pwm_buffer[index * 3 + 0] = red; + g_pwm_buffer[index * 3 + 1] = green; + g_pwm_buffer[index * 3 + 2] = blue; + g_pwm_buffer_update_required = true; +} + +void IS31FL3218_set_color_all(uint8_t red, uint8_t green, uint8_t blue) { + for (int i = 0; i < 6; i++) { + IS31FL3218_set_color(i, red, green, blue); + } +} + +void IS31FL3218_update_pwm_buffers(void) { + if (g_pwm_buffer_update_required) { + IS31FL3218_write_pwm_buffer(g_pwm_buffer); + // Load PWM registers and LED Control register data + IS31FL3218_write_register(ISSI_REG_UPDATE, 0x01); + } + g_pwm_buffer_update_required = false; +} diff --git a/drivers/led/issi/is31fl3218.h b/drivers/led/issi/is31fl3218.h new file mode 100644 index 0000000000..fa760da191 --- /dev/null +++ b/drivers/led/issi/is31fl3218.h @@ -0,0 +1,25 @@ +/* Copyright 2018 Jason Williams (Wilba) + * + * 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/>. + */ + +#pragma once + +#include <stdint.h> +#include <stdbool.h> + +void IS31FL3218_init(void); +void IS31FL3218_set_color(int index, uint8_t red, uint8_t green, uint8_t blue); +void IS31FL3218_set_color_all(uint8_t red, uint8_t green, uint8_t blue); +void IS31FL3218_update_pwm_buffers(void); diff --git a/drivers/led/issi/is31fl3731-simple.c b/drivers/led/issi/is31fl3731-simple.c new file mode 100644 index 0000000000..d295772f5e --- /dev/null +++ b/drivers/led/issi/is31fl3731-simple.c @@ -0,0 +1,233 @@ +/* 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) { |