diff options
Diffstat (limited to 'drivers/led/issi/is31fl3741.c')
-rw-r--r-- | drivers/led/issi/is31fl3741.c | 99 |
1 files changed, 35 insertions, 64 deletions
diff --git a/drivers/led/issi/is31fl3741.c b/drivers/led/issi/is31fl3741.c index efcfa77b46..b5d041af4f 100644 --- a/drivers/led/issi/is31fl3741.c +++ b/drivers/led/issi/is31fl3741.c @@ -18,11 +18,11 @@ */ #include "is31fl3741.h" -#include <string.h> #include "i2c_master.h" #include "wait.h" #define IS31FL3741_PWM_REGISTER_COUNT 351 +#define IS31FL3741_SCALING_REGISTER_COUNT 351 #ifndef IS31FL3741_I2C_TIMEOUT # define IS31FL3741_I2C_TIMEOUT 100 @@ -52,11 +52,8 @@ # define IS31FL3741_GLOBAL_CURRENT 0xFF #endif -// Transfer buffer for TWITransmitData() -uint8_t g_twi_transfer_buffer[20] = {0xFF}; - // These buffers match the IS31FL3741 and IS31FL3741A PWM registers. -// The scaling buffers match the PG2 and PG3 LED On/Off registers. +// The scaling buffers match the page 2 and 3 LED On/Off registers. // Storing them like this is optimal for I2C transfers to the registers. // We could optimize this and take out the unused registers from these // buffers and the transfers in is31fl3741_write_pwm_buffer() but it's @@ -65,64 +62,48 @@ uint8_t g_pwm_buffer[IS31FL3741_DRIVER_COUNT][IS31FL3741_PWM_REGISTER_COUNT]; bool g_pwm_buffer_update_required[IS31FL3741_DRIVER_COUNT] = {false}; bool g_scaling_registers_update_required[IS31FL3741_DRIVER_COUNT] = {false}; -uint8_t g_scaling_registers[IS31FL3741_DRIVER_COUNT][IS31FL3741_PWM_REGISTER_COUNT]; +uint8_t g_scaling_registers[IS31FL3741_DRIVER_COUNT][IS31FL3741_SCALING_REGISTER_COUNT]; void is31fl3741_write_register(uint8_t addr, uint8_t reg, uint8_t data) { - g_twi_transfer_buffer[0] = reg; - g_twi_transfer_buffer[1] = data; - #if IS31FL3741_I2C_PERSISTENCE > 0 for (uint8_t i = 0; i < IS31FL3741_I2C_PERSISTENCE; i++) { - if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3741_I2C_TIMEOUT) == 0) break; + if (i2c_writeReg(addr << 1, reg, &data, 1, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; } #else - i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3741_I2C_TIMEOUT); + i2c_writeReg(addr << 1, reg, &data, 1, IS31FL3741_I2C_TIMEOUT); #endif } -bool is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) { - // Assume PG0 is already selected +void is31fl3741_select_page(uint8_t addr, uint8_t page) { + is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC); + is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, page); +} + +void is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) { + // Assume page 0 is already selected - for (int i = 0; i < 342; i += 18) { + for (uint16_t i = 0; i < 342; i += 18) { if (i == 180) { - // unlock the command register and select PG1 - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC); - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_PWM_1); + is31fl3741_select_page(addr, IS31FL3741_COMMAND_PWM_1); } - g_twi_transfer_buffer[0] = i % 180; - memcpy(g_twi_transfer_buffer + 1, pwm_buffer + i, 18); - #if IS31FL3741_I2C_PERSISTENCE > 0 - for (uint8_t i = 0; i < IS31FL3741_I2C_PERSISTENCE; i++) { - if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 19, IS31FL3741_I2C_TIMEOUT) != 0) { - return false; - } + for (uint8_t j = 0; j < IS31FL3741_I2C_PERSISTENCE; j++) { + if (i2c_writeReg(addr << 1, i % 180, pwm_buffer + i, 18, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; } #else - if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 19, IS31FL3741_I2C_TIMEOUT) != 0) { - return false; - } + i2c_writeReg(addr << 1, i % 180, pwm_buffer + i, 18, IS31FL3741_I2C_TIMEOUT); #endif } // transfer the left cause the total number is 351 - g_twi_transfer_buffer[0] = 162; - memcpy(g_twi_transfer_buffer + 1, pwm_buffer + 342, 9); - #if IS31FL3741_I2C_PERSISTENCE > 0 for (uint8_t i = 0; i < IS31FL3741_I2C_PERSISTENCE; i++) { - if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 10, IS31FL3741_I2C_TIMEOUT) != 0) { - return false; - } + if (i2c_writeReg(addr << 1, 162, pwm_buffer + 342, 9, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break; } #else - if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 10, IS31FL3741_I2C_TIMEOUT) != 0) { - return false; - } + i2c_writeReg(addr << 1, 162, pwm_buffer + 342, 9, IS31FL3741_I2C_TIMEOUT); #endif - - return true; } void is31fl3741_init_drivers(void) { @@ -162,11 +143,7 @@ void is31fl3741_init(uint8_t addr) { // then disable software shutdown. // Unlock the command register. - // Unlock the command register. - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC); - - // Select PG4 - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_FUNCTION); + is31fl3741_select_page(addr, IS31FL3741_COMMAND_FUNCTION); // Set to Normal operation is31fl3741_write_register(addr, IS31FL3741_FUNCTION_REG_CONFIGURATION, IS31FL3741_CONFIGURATION); @@ -186,12 +163,14 @@ void is31fl3741_init(uint8_t addr) { void is31fl3741_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { is31fl3741_led_t led; + if (index >= 0 && index < IS31FL3741_LED_COUNT) { memcpy_P(&led, (&g_is31fl3741_leds[index]), sizeof(led)); if (g_pwm_buffer[led.driver][led.r] == red && g_pwm_buffer[led.driver][led.g] == green && g_pwm_buffer[led.driver][led.b] == blue) { return; } + g_pwm_buffer_update_required[led.driver] = true; g_pwm_buffer[led.driver][led.r] = red; g_pwm_buffer[led.driver][led.g] = green; @@ -232,40 +211,33 @@ void is31fl3741_set_led_control_register(uint8_t index, bool red, bool green, bo void is31fl3741_update_pwm_buffers(uint8_t addr, uint8_t index) { if (g_pwm_buffer_update_required[index]) { - // unlock the command register and select PG2 - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC); - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_PWM_0); + is31fl3741_select_page(addr, IS31FL3741_COMMAND_PWM_0); is31fl3741_write_pwm_buffer(addr, g_pwm_buffer[index]); - } - g_pwm_buffer_update_required[index] = false; + g_pwm_buffer_update_required[index] = false; + } } void is31fl3741_set_pwm_buffer(const is31fl3741_led_t *pled, uint8_t red, uint8_t green, uint8_t blue) { - g_pwm_buffer[pled->driver][pled->r] = red; - g_pwm_buffer[pled->driver][pled->g] = green; - g_pwm_buffer[pled->driver][pled->b] = blue; - + g_pwm_buffer[pled->driver][pled->r] = red; + g_pwm_buffer[pled->driver][pled->g] = green; + g_pwm_buffer[pled->driver][pled->b] = blue; g_pwm_buffer_update_required[pled->driver] = true; } void is31fl3741_update_led_control_registers(uint8_t addr, uint8_t index) { if (g_scaling_registers_update_required[index]) { - // unlock the command register and select PG2 - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC); - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_SCALING_0); + is31fl3741_select_page(addr, IS31FL3741_COMMAND_SCALING_0); - // CS1_SW1 to CS30_SW6 are on PG2 + // CS1_SW1 to CS30_SW6 are on page 2 for (int i = CS1_SW1; i <= CS30_SW6; ++i) { is31fl3741_write_register(addr, i, g_scaling_registers[index][i]); } - // unlock the command register and select PG3 - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC); - is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_SCALING_1); + is31fl3741_select_page(addr, IS31FL3741_COMMAND_SCALING_1); - // CS1_SW7 to CS39_SW9 are on PG3 + // CS1_SW7 to CS39_SW9 are on page 3 for (int i = CS1_SW7; i <= CS39_SW9; ++i) { is31fl3741_write_register(addr, i - CS1_SW7, g_scaling_registers[index][i]); } @@ -275,10 +247,9 @@ void is31fl3741_update_led_control_registers(uint8_t addr, uint8_t index) { } void is31fl3741_set_scaling_registers(const is31fl3741_led_t *pled, uint8_t red, uint8_t green, uint8_t blue) { - g_scaling_registers[pled->driver][pled->r] = red; - g_scaling_registers[pled->driver][pled->g] = green; - g_scaling_registers[pled->driver][pled->b] = blue; - + g_scaling_registers[pled->driver][pled->r] = red; + g_scaling_registers[pled->driver][pled->g] = green; + g_scaling_registers[pled->driver][pled->b] = blue; g_scaling_registers_update_required[pled->driver] = true; } |