diff options
Diffstat (limited to 'drivers/led/issi/is31fl3731.c')
| -rw-r--r-- | drivers/led/issi/is31fl3731.c | 83 |
1 files changed, 42 insertions, 41 deletions
diff --git a/drivers/led/issi/is31fl3731.c b/drivers/led/issi/is31fl3731.c index 15a01b6d75..9e2d39c692 100644 --- a/drivers/led/issi/is31fl3731.c +++ b/drivers/led/issi/is31fl3731.c @@ -17,6 +17,7 @@ */ #include "is31fl3731.h" +#include <string.h> #include "i2c_master.h" #include "wait.h" @@ -27,34 +28,34 @@ // 0b1110111 AD <-> VCC // 0b1110101 AD <-> SCL // 0b1110110 AD <-> SDA -#define ISSI_ADDR_DEFAULT 0x74 +#define IS31FL3731_I2C_ADDRESS_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 IS31FL3731_REG_CONFIG 0x00 +#define IS31FL3731_REG_CONFIG_PICTUREMODE 0x00 +#define IS31FL3731_REG_CONFIG_AUTOPLAYMODE 0x08 +#define IS31FL3731_REG_CONFIG_AUDIOPLAYMODE 0x18 -#define ISSI_CONF_PICTUREMODE 0x00 -#define ISSI_CONF_AUTOFRAMEMODE 0x04 -#define ISSI_CONF_AUDIOMODE 0x08 +#define IS31FL3731_CONF_PICTUREMODE 0x00 +#define IS31FL3731_CONF_AUTOFRAMEMODE 0x04 +#define IS31FL3731_CONF_AUDIOMODE 0x08 -#define ISSI_REG_PICTUREFRAME 0x01 +#define IS31FL3731_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 IS31FL3731_REG_GHOST_IMAGE_PREVENTION 0xC2 // Set bit 4 to enable de-ghosting -#define ISSI_REG_SHUTDOWN 0x0A -#define ISSI_REG_AUDIOSYNC 0x06 +#define IS31FL3731_REG_SHUTDOWN 0x0A +#define IS31FL3731_REG_AUDIOSYNC 0x06 -#define ISSI_COMMANDREGISTER 0xFD -#define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine' +#define IS31FL3731_COMMANDREGISTER 0xFD +#define IS31FL3731_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() @@ -65,11 +66,11 @@ 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_pwm_buffer[IS31FL3731_DRIVER_COUNT][144]; +bool g_pwm_buffer_update_required[IS31FL3731_DRIVER_COUNT] = {false}; -uint8_t g_led_control_registers[DRIVER_COUNT][18] = {{0}}; -bool g_led_control_registers_update_required[DRIVER_COUNT] = {false}; +uint8_t g_led_control_registers[IS31FL3731_DRIVER_COUNT][18] = {{0}}; +bool g_led_control_registers_update_required[IS31FL3731_DRIVER_COUNT] = {false}; // This is the bit pattern in the LED control registers // (for matrix A, add one to register for matrix B) @@ -89,12 +90,12 @@ 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 } @@ -113,12 +114,12 @@ 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 } } @@ -130,26 +131,26 @@ 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_COMMANDREGISTER, IS31FL3731_BANK_FUNCTIONREG); // 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_REG_SHUTDOWN, 0x00); +#ifdef IS31FL3731_DEGHOST // set to enable de-ghosting of the array + is31fl3731_write_register(addr, IS31FL3731_REG_GHOST_IMAGE_PREVENTION, 0x10); #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_REG_CONFIG, IS31FL3731_REG_CONFIG_PICTUREMODE); // display frame 0 - is31fl3731_write_register(addr, ISSI_REG_PICTUREFRAME, 0x00); + is31fl3731_write_register(addr, IS31FL3731_REG_PICTUREFRAME, 0x00); // audio sync off - is31fl3731_write_register(addr, ISSI_REG_AUDIOSYNC, 0x00); + is31fl3731_write_register(addr, IS31FL3731_REG_AUDIOSYNC, 0x00); // select bank 0 - is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, 0); + is31fl3731_write_register(addr, IS31FL3731_COMMANDREGISTER, 0); // turn off all LEDs in the LED control register for (int i = 0x00; i <= 0x11; i++) { @@ -167,15 +168,15 @@ void is31fl3731_init(uint8_t addr) { } // select "function register" bank - is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG); + is31fl3731_write_register(addr, IS31FL3731_COMMANDREGISTER, IS31FL3731_BANK_FUNCTIONREG); // disable software shutdown - is31fl3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x01); + is31fl3731_write_register(addr, IS31FL3731_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_COMMANDREGISTER, 0); } void is31fl3731_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { |