diff options
Diffstat (limited to 'drivers/led/issi/is31fl3731-simple.c')
| -rw-r--r-- | drivers/led/issi/is31fl3731-simple.c | 123 |
1 files changed, 46 insertions, 77 deletions
diff --git a/drivers/led/issi/is31fl3731-simple.c b/drivers/led/issi/is31fl3731-simple.c index f7f6980a3b..f9ad703ced 100644 --- a/drivers/led/issi/is31fl3731-simple.c +++ b/drivers/led/issi/is31fl3731-simple.c @@ -18,44 +18,36 @@ */ #include "is31fl3731-simple.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_REG_CONFIG 0x00 +#define IS31FL3731_REG_CONFIG_PICTUREMODE 0x00 +#define IS31FL3731_REG_CONFIG_AUTOPLAYMODE 0x08 +#define IS31FL3731_REG_CONFIG_AUDIOPLAYMODE 0x18 -#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_CONF_PICTUREMODE 0x00 +#define IS31FL3731_CONF_AUTOFRAMEMODE 0x04 +#define IS31FL3731_CONF_AUDIOMODE 0x08 -#define ISSI_CONF_PICTUREMODE 0x00 -#define ISSI_CONF_AUTOFRAMEMODE 0x04 -#define ISSI_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() @@ -66,47 +58,24 @@ 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[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 +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[IS31FL3731_DRIVER_COUNT][18] = {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) { +#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 } @@ -125,12 +94,12 @@ 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 } } @@ -142,26 +111,26 @@ 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++) { @@ -179,21 +148,21 @@ void is31fl3731_init(uint8_t addr) { } // select "function register" bank - is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG); + is31fl3731_write_register(addr, IS31FL3731_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_value(int index, uint8_t value) { - is31_led led; + is31fl3731_led_t led; if (index >= 0 && index < LED_MATRIX_LED_COUNT) { - memcpy_P(&led, (&g_is31_leds[index]), sizeof(led)); + memcpy_P(&led, (&g_is31fl3731_leds[index]), sizeof(led)); // Subtract 0x24 to get the second index of g_pwm_buffer @@ -212,8 +181,8 @@ void is31fl3731_set_value_all(uint8_t value) { } void is31fl3731_set_led_control_register(uint8_t index, bool value) { - 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 = (led.v - 0x24) / 8; uint8_t bit_value = (led.v - 0x24) % 8; |