* initial commit * removed changes to write_pwm_buffer * backward compatbility added * fixed issue with backward compatibility * documentation update * removed unneccessary comment. branched from master * updated per comments #13457 * removed blank line * cformat on diff files
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3 changed files with 55 additions and 30 deletions
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@ -145,9 +145,22 @@ There is basic support for addressable RGB matrix lighting with the I2C IS31FL37
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RGB_MATRIX_ENABLE = yes
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RGB_MATRIX_DRIVER = IS31FL3737
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```
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You can use between 1 and 2 IS31FL3737 IC's. Do not specify `DRIVER_ADDR_2` define for second IC if not present on your keyboard.
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Configure the hardware via your `config.h`:
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| Variable | Description | Default |
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|----------|-------------|---------|
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| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
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| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
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| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
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| `DRIVER_LED_TOTAL` | (Required) How many RGB lights are present across all drivers | |
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| `DRIVER_ADDR_1` | (Required) Address for the first RGB driver | |
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| `DRIVER_ADDR_2` | (Optional) Address for the second RGB driver | |
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Here is an example using 2 drivers.
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```c
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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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@ -159,14 +172,16 @@ Configure the hardware via your `config.h`:
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// ADDR represents A3:A0 of the 7-bit address.
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// The result is: 0b101(ADDR)
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#define DRIVER_ADDR_1 0b1010000
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#define DRIVER_ADDR_2 0b1010000 // this is here for compliancy reasons.
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#define DRIVER_ADDR_2 0b1010001
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#define DRIVER_COUNT 2
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#define DRIVER_1_LED_TOTAL 64
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#define DRIVER_LED_TOTAL DRIVER_1_LED_TOTAL
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#define DRIVER_1_LED_TOTAL 30
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#define DRIVER_2_LED_TOTAL 36
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#define DRIVER_LED_TOTAL (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
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```
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!> Note the parentheses, this is so when `DRIVER_LED_TOTAL` is used in code and expanded, the values are added together before any additional math is applied to them. As an example, `rand() % (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)` will give very different results than `rand() % DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL`.
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Currently only a single drivers is supported, but it would be trivial to support all 4 combinations. For now define `DRIVER_ADDR_2` as `DRIVER_ADDR_1`
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Currently only 2 drivers are supported, but it would be trivial to support all 4 combinations.
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Define these arrays listing all the LEDs in your `<keyboard>.c`:
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@ -183,7 +198,7 @@ const is31_led PROGMEM g_is31_leds[DRIVER_LED_TOTAL] = {
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}
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```
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Where `X_Y` is the location of the LED in the matrix defined by [the datasheet](https://www.issi.com/WW/pdf/31FL3737.pdf) and the header file `drivers/issi/is31fl3737.h`. The `driver` is the index of the driver you defined in your `config.h` (Only `0` right now).
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Where `X_Y` is the location of the LED in the matrix defined by [the datasheet](https://www.issi.com/WW/pdf/31FL3737.pdf) and the header file `drivers/issi/is31fl3737.h`. The `driver` is the index of the driver you defined in your `config.h` (Only `0`, `1` for now).
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---
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@ -66,11 +66,12 @@ uint8_t g_twi_transfer_buffer[20];
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// We could optimize this and take out the unused registers from these
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// buffers and the transfers in IS31FL3737_write_pwm_buffer() but it's
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// probably not worth the extra complexity.
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uint8_t g_pwm_buffer[DRIVER_COUNT][192];
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bool g_pwm_buffer_update_required = false;
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uint8_t g_led_control_registers[DRIVER_COUNT][24] = {{0}};
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bool g_led_control_registers_update_required = false;
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uint8_t g_pwm_buffer[DRIVER_COUNT][192];
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bool g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
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uint8_t g_led_control_registers[DRIVER_COUNT][24] = {0};
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bool g_led_control_registers_update_required[DRIVER_COUNT] = {false};
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void IS31FL3737_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
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g_twi_transfer_buffer[0] = reg;
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@ -158,10 +159,10 @@ void IS31FL3737_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
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is31_led led;
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memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
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g_pwm_buffer[led.driver][led.r] = red;
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g_pwm_buffer[led.driver][led.g] = green;
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g_pwm_buffer[led.driver][led.b] = blue;
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g_pwm_buffer_update_required = true;
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g_pwm_buffer[led.driver][led.r] = red;
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g_pwm_buffer[led.driver][led.g] = green;
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g_pwm_buffer[led.driver][led.b] = blue;
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g_pwm_buffer_update_required[led.driver] = true;
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}
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}
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@ -199,30 +200,28 @@ void IS31FL3737_set_led_control_register(uint8_t index, bool red, bool green, bo
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g_led_control_registers[led.driver][control_register_b] &= ~(1 << bit_b);
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}
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g_led_control_registers_update_required = true;
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g_led_control_registers_update_required[led.driver] = true;
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}
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void IS31FL3737_update_pwm_buffers(uint8_t addr1, uint8_t addr2) {
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if (g_pwm_buffer_update_required) {
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void IS31FL3737_update_pwm_buffers(uint8_t addr, uint8_t index) {
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if (g_pwm_buffer_update_required[index]) {
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// Firstly we need to unlock the command register and select PG1
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IS31FL3737_write_register(addr1, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
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IS31FL3737_write_register(addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
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IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
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IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
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IS31FL3737_write_pwm_buffer(addr1, g_pwm_buffer[0]);
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// IS31FL3737_write_pwm_buffer(addr2, g_pwm_buffer[1]);
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IS31FL3737_write_pwm_buffer(addr, g_pwm_buffer[index]);
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}
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g_pwm_buffer_update_required = false;
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g_pwm_buffer_update_required[index] = false;
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}
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void IS31FL3737_update_led_control_registers(uint8_t addr1, uint8_t addr2) {
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if (g_led_control_registers_update_required) {
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void IS31FL3737_update_led_control_registers(uint8_t addr, uint8_t index) {
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if (g_led_control_registers_update_required[index]) {
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// Firstly we need to unlock the command register and select PG0
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IS31FL3737_write_register(addr1, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
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IS31FL3737_write_register(addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
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IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
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IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
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for (int i = 0; i < 24; i++) {
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IS31FL3737_write_register(addr1, i, g_led_control_registers[0][i]);
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// IS31FL3737_write_register(addr2, i, g_led_control_registers[1][i]);
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IS31FL3737_write_register(addr, i, g_led_control_registers[index][i]);
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}
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g_led_control_registers_update_required = false;
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}
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g_led_control_registers_update_required[index] = false;
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}
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@ -65,6 +65,9 @@ static void init(void) {
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# endif
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# elif defined(IS31FL3737)
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IS31FL3737_init(DRIVER_ADDR_1);
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# if defined(DRIVER_ADDR_2) && (DRIVER_ADDR_2 != DRIVER_ADDR_1) // provides backward compatibility
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IS31FL3737_init(DRIVER_ADDR_2);
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# endif
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# else
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IS31FL3741_init(DRIVER_ADDR_1);
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# endif
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@ -105,7 +108,10 @@ static void init(void) {
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IS31FL3733_update_led_control_registers(DRIVER_ADDR_4, 3);
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# endif
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# elif defined(IS31FL3737)
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IS31FL3737_update_led_control_registers(DRIVER_ADDR_1, DRIVER_ADDR_2);
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IS31FL3737_update_led_control_registers(DRIVER_ADDR_1, 0);
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# if defined(DRIVER_ADDR_2) && (DRIVER_ADDR_2 != DRIVER_ADDR_1) // provides backward compatibility
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IS31FL3737_update_led_control_registers(DRIVER_ADDR_2, 1);
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# endif
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# else
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IS31FL3741_update_led_control_registers(DRIVER_ADDR_1, 0);
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# endif
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@ -152,7 +158,12 @@ const rgb_matrix_driver_t rgb_matrix_driver = {
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.set_color_all = IS31FL3733_set_color_all,
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};
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# elif defined(IS31FL3737)
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static void flush(void) { IS31FL3737_update_pwm_buffers(DRIVER_ADDR_1, DRIVER_ADDR_2); }
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static void flush(void) {
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IS31FL3737_update_pwm_buffers(DRIVER_ADDR_1, 0);
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# if defined(DRIVER_ADDR_2) && (DRIVER_ADDR_2 != DRIVER_ADDR_1) // provides backward compatibility
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IS31FL3737_update_pwm_buffers(DRIVER_ADDR_2, 1);
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# endif
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}
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const rgb_matrix_driver_t rgb_matrix_driver = {
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.init = init,
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