diff options
Diffstat (limited to 'drivers/issi/is31fl3731.c')
-rw-r--r-- | drivers/issi/is31fl3731.c | 160 |
1 files changed, 70 insertions, 90 deletions
diff --git a/drivers/issi/is31fl3731.c b/drivers/issi/is31fl3731.c index 30c7dd053..0b6f3e985 100644 --- a/drivers/issi/is31fl3731.c +++ b/drivers/issi/is31fl3731.c @@ -16,11 +16,11 @@ */ #ifdef __AVR__ -#include <avr/interrupt.h> -#include <avr/io.h> -#include <util/delay.h> +# include <avr/interrupt.h> +# include <avr/io.h> +# include <util/delay.h> #else -#include "wait.h" +# include "wait.h" #endif #include "is31fl3731.h" @@ -37,7 +37,7 @@ // 0b1110110 AD <-> SDA #define ISSI_ADDR_DEFAULT 0x74 -#define ISSI_REG_CONFIG 0x00 +#define ISSI_REG_CONFIG 0x00 #define ISSI_REG_CONFIG_PICTUREMODE 0x00 #define ISSI_REG_CONFIG_AUTOPLAYMODE 0x08 #define ISSI_REG_CONFIG_AUDIOPLAYMODE 0x18 @@ -46,20 +46,20 @@ #define ISSI_CONF_AUTOFRAMEMODE 0x04 #define ISSI_CONF_AUDIOMODE 0x08 -#define ISSI_REG_PICTUREFRAME 0x01 +#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' +#define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine' #ifndef ISSI_TIMEOUT - #define ISSI_TIMEOUT 100 +# define ISSI_TIMEOUT 100 #endif #ifndef ISSI_PERSISTENCE - #define ISSI_PERSISTENCE 0 +# define ISSI_PERSISTENCE 0 #endif // Transfer buffer for TWITransmitData() @@ -71,10 +71,10 @@ uint8_t g_twi_transfer_buffer[20]; // 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 }; +bool g_pwm_buffer_update_required[DRIVER_COUNT] = {false}; -uint8_t g_led_control_registers[DRIVER_COUNT][18] = { { 0 }, { 0 } }; -bool g_led_control_registers_update_required[DRIVER_COUNT] = { false }; +uint8_t g_led_control_registers[DRIVER_COUNT][18] = {{0}, {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) @@ -90,179 +90,159 @@ bool g_led_control_registers_update_required[DRIVER_COUNT] = { false }; // 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 ) -{ +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 +#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 (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) == 0) break; } - #else +#else i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT); - #endif +#endif } -void IS31FL3731_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer ) -{ +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 ) { + 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++ ) { + 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 +#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 ) -{ +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 ); + 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 - #ifdef __AVR__ - _delay_ms( 10 ); - #else + IS31FL3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00); +// this delay was copied from other drivers, might not be needed +#ifdef __AVR__ + _delay_ms(10); +#else wait_ms(10); - #endif +#endif // picture mode - IS31FL3731_write_register( addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE ); + IS31FL3731_write_register(addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE); // display frame 0 - IS31FL3731_write_register( addr, ISSI_REG_PICTUREFRAME, 0x00 ); + IS31FL3731_write_register(addr, ISSI_REG_PICTUREFRAME, 0x00); // audio sync off - IS31FL3731_write_register( addr, ISSI_REG_AUDIOSYNC, 0x00 ); + IS31FL3731_write_register(addr, ISSI_REG_AUDIOSYNC, 0x00); // select bank 0 - IS31FL3731_write_register( addr, ISSI_COMMANDREGISTER, 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 ); + 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 ); + 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 ); + 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 ); + IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG); // disable software shutdown - IS31FL3731_write_register( addr, ISSI_REG_SHUTDOWN, 0x01 ); + 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 ); - + IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, 0); } -void IS31FL3731_set_color( int index, uint8_t red, uint8_t green, uint8_t blue ) -{ - if ( index >= 0 && index < DRIVER_LED_TOTAL ) { +void IS31FL3731_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { + 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.r - 0x24] = red; - g_pwm_buffer[led.driver][led.g - 0x24] = green; - g_pwm_buffer[led.driver][led.b - 0x24] = blue; + 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; g_pwm_buffer_update_required[led.driver] = true; } } -void IS31FL3731_set_color_all( uint8_t red, uint8_t green, uint8_t blue ) -{ - for ( int i = 0; i < DRIVER_LED_TOTAL; i++ ) - { - IS31FL3731_set_color( i, red, green, blue ); +void IS31FL3731_set_color_all(uint8_t red, uint8_t green, uint8_t blue) { + for (int i = 0; i < DRIVER_LED_TOTAL; i++) { + IS31FL3731_set_color(i, red, green, blue); } } -void IS31FL3731_set_led_control_register( uint8_t index, bool red, bool green, bool blue ) -{ +void IS31FL3731_set_led_control_register(uint8_t index, bool red, bool green, bool blue) { is31_led led = g_is31_leds[index]; uint8_t control_register_r = (led.r - 0x24) / 8; uint8_t control_register_g = (led.g - 0x24) / 8; uint8_t control_register_b = (led.b - 0x24) / 8; - uint8_t bit_r = (led.r - 0x24) % 8; - uint8_t bit_g = (led.g - 0x24) % 8; - uint8_t bit_b = (led.b - 0x24) % 8; + uint8_t bit_r = (led.r - 0x24) % 8; + uint8_t bit_g = (led.g - 0x24) % 8; + uint8_t bit_b = (led.b - 0x24) % 8; - if ( red ) { + if (red) { g_led_control_registers[led.driver][control_register_r] |= (1 << bit_r); } else { g_led_control_registers[led.driver][control_register_r] &= ~(1 << bit_r); } - if ( green ) { + if (green) { g_led_control_registers[led.driver][control_register_g] |= (1 << bit_g); } else { g_led_control_registers[led.driver][control_register_g] &= ~(1 << bit_g); } - if ( blue ) { + if (blue) { g_led_control_registers[led.driver][control_register_b] |= (1 << bit_b); } else { g_led_control_registers[led.driver][control_register_b] &= ~(1 << bit_b); } 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] ); +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] ); +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]); } } } |