diff options
Diffstat (limited to 'drivers/led/issi/is31fl3731.c')
-rw-r--r-- | drivers/led/issi/is31fl3731.c | 162 |
1 files changed, 83 insertions, 79 deletions
diff --git a/drivers/led/issi/is31fl3731.c b/drivers/led/issi/is31fl3731.c index 15a01b6d75..1ab8997731 100644 --- a/drivers/led/issi/is31fl3731.c +++ b/drivers/led/issi/is31fl3731.c @@ -17,44 +17,19 @@ */ #include "is31fl3731.h" +#include <string.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 IS31FL3731_PWM_REGISTER_COUNT 144 +#define IS31FL3731_LED_CONTROL_REGISTER_COUNT 18 -#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 - -// Not defined in the datasheet -- See AN for IC -#define ISSI_REG_GHOST_IMAGE_PREVENTION 0xC2 // Set bit 4 to enable de-ghosting - -#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 +#ifndef IS31FL3731_I2C_TIMEOUT +# define IS31FL3731_I2C_TIMEOUT 100 #endif -#ifndef ISSI_PERSISTENCE -# define ISSI_PERSISTENCE 0 +#ifndef IS31FL3731_I2C_PERSISTENCE +# define IS31FL3731_I2C_PERSISTENCE 0 #endif // Transfer buffer for TWITransmitData() @@ -65,36 +40,22 @@ uint8_t g_twi_transfer_buffer[20]; // 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[DRIVER_COUNT][144]; -bool g_pwm_buffer_update_required[DRIVER_COUNT] = {false}; - -uint8_t g_led_control_registers[DRIVER_COUNT][18] = {{0}}; -bool g_led_control_registers_update_required[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 +uint8_t g_pwm_buffer[IS31FL3731_DRIVER_COUNT][IS31FL3731_PWM_REGISTER_COUNT]; +bool g_pwm_buffer_update_required[IS31FL3731_DRIVER_COUNT] = {false}; + +uint8_t g_led_control_registers[IS31FL3731_DRIVER_COUNT][IS31FL3731_LED_CONTROL_REGISTER_COUNT] = {0}; +bool g_led_control_registers_update_required[IS31FL3731_DRIVER_COUNT] = {false}; 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; +#if IS31FL3731_I2C_PERSISTENCE > 0 + for (uint8_t i = 0; i < IS31FL3731_I2C_PERSISTENCE; i++) { + if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3731_I2C_TIMEOUT) == 0) break; } #else - i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT); + i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3731_I2C_TIMEOUT); #endif } @@ -105,7 +66,7 @@ void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) { // 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) { + for (int i = 0; i < IS31FL3731_PWM_REGISTER_COUNT; 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 @@ -113,16 +74,46 @@ void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) { // thus this sets registers 0x24-0x33, 0x34-0x43, etc. in one transfer memcpy(g_twi_transfer_buffer + 1, pwm_buffer + i, 16); -#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; +#if IS31FL3731_I2C_PERSISTENCE > 0 + for (uint8_t i = 0; i < IS31FL3731_I2C_PERSISTENCE; i++) { + if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3731_I2C_TIMEOUT) == 0) break; } #else - i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT); + i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3731_I2C_TIMEOUT); #endif } } +void is31fl3731_init_drivers(void) { + i2c_init(); + + is31fl3731_init(IS31FL3731_I2C_ADDRESS_1); +#if defined(IS31FL3731_I2C_ADDRESS_2) + is31fl3731_init(IS31FL3731_I2C_ADDRESS_2); +# if defined(IS31FL3731_I2C_ADDRESS_3) + is31fl3731_init(IS31FL3731_I2C_ADDRESS_3); +# if defined(IS31FL3731_I2C_ADDRESS_4) + is31fl3731_init(IS31FL3731_I2C_ADDRESS_4); +# endif +# endif +#endif + + for (int i = 0; i < IS31FL3731_LED_COUNT; i++) { + is31fl3731_set_led_control_register(i, true, true, true); + } + + is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_1, 0); +#if defined(IS31FL3731_I2C_ADDRESS_2) + is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_2, 1); +# if defined(IS31FL3731_I2C_ADDRESS_3) + is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_3, 2); +# if defined(IS31FL3731_I2C_ADDRESS_4) + is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_4, 3); +# endif +# endif +#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, @@ -130,29 +121,29 @@ void is31fl3731_init(uint8_t addr) { // then disable software shutdown. // select "function register" bank - is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG); + is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION); // enable software shutdown - is31fl3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00); -#ifdef ISSI_3731_DEGHOST // set to enable de-ghosting of the array - is31fl3731_write_register(addr, ISSI_REG_GHOST_IMAGE_PREVENTION, 0x10); + is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_SHUTDOWN, 0x00); +#ifdef IS31FL3731_DEGHOST // set to enable de-ghosting of the array + is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_GHOST_IMAGE_PREVENTION, IS31FL3731_GHOST_IMAGE_PREVENTION_GEN); #endif // 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); + is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_CONFIG, IS31FL3731_CONFIG_MODE_PICTURE); // display frame 0 - is31fl3731_write_register(addr, ISSI_REG_PICTUREFRAME, 0x00); + is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_PICTURE_DISPLAY, 0x00); // audio sync off - is31fl3731_write_register(addr, ISSI_REG_AUDIOSYNC, 0x00); + is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_AUDIO_SYNC, 0x00); // select bank 0 - is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, 0); + is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1); // turn off all LEDs in the LED control register - for (int i = 0x00; i <= 0x11; i++) { + for (int i = 0; i < IS31FL3731_LED_CONTROL_REGISTER_COUNT; i++) { is31fl3731_write_register(addr, i, 0x00); } @@ -167,21 +158,21 @@ void is31fl3731_init(uint8_t addr) { } // select "function register" bank - is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG); + is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION); // disable software shutdown - is31fl3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x01); + is31fl3731_write_register(addr, IS31FL3731_FUNCTION_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); + is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1); } void is31fl3731_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { - is31_led led; - if (index >= 0 && index < RGB_MATRIX_LED_COUNT) { - memcpy_P(&led, (&g_is31_leds[index]), sizeof(led)); + is31fl3731_led_t led; + if (index >= 0 && index < IS31FL3731_LED_COUNT) { + memcpy_P(&led, (&g_is31fl3731_leds[index]), sizeof(led)); // Subtract 0x24 to get the second index of g_pwm_buffer if (g_pwm_buffer[led.driver][led.r - 0x24] == red && g_pwm_buffer[led.driver][led.g - 0x24] == green && g_pwm_buffer[led.driver][led.b - 0x24] == blue) { @@ -195,14 +186,14 @@ void is31fl3731_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { } void is31fl3731_set_color_all(uint8_t red, uint8_t green, uint8_t blue) { - for (int i = 0; i < RGB_MATRIX_LED_COUNT; i++) { + for (int i = 0; i < IS31FL3731_LED_COUNT; i++) { is31fl3731_set_color(i, red, green, blue); } } void is31fl3731_set_led_control_register(uint8_t index, bool red, bool green, bool blue) { - is31_led led; - memcpy_P(&led, (&g_is31_leds[index]), sizeof(led)); + is31fl3731_led_t led; + memcpy_P(&led, (&g_is31fl3731_leds[index]), sizeof(led)); uint8_t control_register_r = (led.r - 0x24) / 8; uint8_t control_register_g = (led.g - 0x24) / 8; @@ -239,9 +230,22 @@ void is31fl3731_update_pwm_buffers(uint8_t addr, uint8_t index) { 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++) { + for (int i = 0; i < IS31FL3731_LED_CONTROL_REGISTER_COUNT; i++) { is31fl3731_write_register(addr, i, g_led_control_registers[index][i]); } } g_led_control_registers_update_required[index] = false; } + +void is31fl3731_flush(void) { + is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_1, 0); +#if defined(IS31FL3731_I2C_ADDRESS_2) + is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_2, 1); +# if defined(IS31FL3731_I2C_ADDRESS_3) + is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_3, 2); +# if defined(IS31FL3731_I2C_ADDRESS_4) + is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_4, 3); +# endif +# endif +#endif +} |