diff options
Diffstat (limited to 'drivers/led/issi/is31fl3737.c')
| -rw-r--r-- | drivers/led/issi/is31fl3737.c | 125 |
1 files changed, 57 insertions, 68 deletions
diff --git a/drivers/led/issi/is31fl3737.c b/drivers/led/issi/is31fl3737.c index 947c0a1d1a..3d93548a46 100644 --- a/drivers/led/issi/is31fl3737.c +++ b/drivers/led/issi/is31fl3737.c @@ -18,59 +18,48 @@ */ #include "is31fl3737.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: -// 00 <-> GND -// 01 <-> SCL -// 10 <-> SDA -// 11 <-> VCC -// ADDR1 represents A1:A0 of the 7-bit address. -// ADDR2 represents A3:A2 of the 7-bit address. -// The result is: 0b101(ADDR2)(ADDR1) -#define ISSI_ADDR_DEFAULT 0x50 - -#define ISSI_COMMANDREGISTER 0xFD -#define ISSI_COMMANDREGISTER_WRITELOCK 0xFE -#define ISSI_INTERRUPTMASKREGISTER 0xF0 -#define ISSI_INTERRUPTSTATUSREGISTER 0xF1 - -#define ISSI_PAGE_LEDCONTROL 0x00 // PG0 -#define ISSI_PAGE_PWM 0x01 // PG1 -#define ISSI_PAGE_AUTOBREATH 0x02 // PG2 -#define ISSI_PAGE_FUNCTION 0x03 // PG3 - -#define ISSI_REG_CONFIGURATION 0x00 // PG3 -#define ISSI_REG_GLOBALCURRENT 0x01 // PG3 -#define ISSI_REG_RESET 0x11 // PG3 -#define ISSI_REG_SWPULLUP 0x0F // PG3 -#define ISSI_REG_CSPULLUP 0x10 // PG3 - -#ifndef ISSI_TIMEOUT -# define ISSI_TIMEOUT 100 +#define IS31FL3737_COMMANDREGISTER 0xFD +#define IS31FL3737_COMMANDREGISTER_WRITELOCK 0xFE +#define IS31FL3737_INTERRUPTMASKREGISTER 0xF0 +#define IS31FL3737_INTERRUPTSTATUSREGISTER 0xF1 + +#define IS31FL3737_PAGE_LEDCONTROL 0x00 // PG0 +#define IS31FL3737_PAGE_PWM 0x01 // PG1 +#define IS31FL3737_PAGE_AUTOBREATH 0x02 // PG2 +#define IS31FL3737_PAGE_FUNCTION 0x03 // PG3 + +#define IS31FL3737_REG_CONFIGURATION 0x00 // PG3 +#define IS31FL3737_REG_GLOBALCURRENT 0x01 // PG3 +#define IS31FL3737_REG_RESET 0x11 // PG3 +#define IS31FL3737_REG_SWPULLUP 0x0F // PG3 +#define IS31FL3737_REG_CSPULLUP 0x10 // PG3 + +#ifndef IS31FL3737_I2C_TIMEOUT +# define IS31FL3737_I2C_TIMEOUT 100 #endif -#ifndef ISSI_PERSISTENCE -# define ISSI_PERSISTENCE 0 +#ifndef IS31FL3737_I2C_PERSISTENCE +# define IS31FL3737_I2C_PERSISTENCE 0 #endif -#ifndef ISSI_PWM_FREQUENCY -# define ISSI_PWM_FREQUENCY 0b000 // PFS - IS31FL3737B only +#ifndef IS31FL3737_PWM_FREQUENCY +# define IS31FL3737_PWM_FREQUENCY IS31FL3737_PWM_FREQUENCY_8K4_HZ // PFS - IS31FL3737B only #endif -#ifndef ISSI_SWPULLUP -# define ISSI_SWPULLUP PUR_0R +#ifndef IS31FL3737_SWPULLUP +# define IS31FL3737_SWPULLUP IS31FL3737_PUR_0R #endif -#ifndef ISSI_CSPULLUP -# define ISSI_CSPULLUP PUR_0R +#ifndef IS31FL3737_CSPULLUP +# define IS31FL3737_CSPULLUP IS31FL3737_PUR_0R #endif -#ifndef ISSI_GLOBALCURRENT -# define ISSI_GLOBALCURRENT 0xFF +#ifndef IS31FL3737_GLOBALCURRENT +# define IS31FL3737_GLOBALCURRENT 0xFF #endif // Transfer buffer for TWITransmitData() @@ -83,22 +72,22 @@ uint8_t g_twi_transfer_buffer[20]; // buffers and the transfers in is31fl3737_write_pwm_buffer() but it's // probably not worth the extra complexity. -uint8_t g_pwm_buffer[DRIVER_COUNT][192]; -bool g_pwm_buffer_update_required[DRIVER_COUNT] = {false}; +uint8_t g_pwm_buffer[IS31FL3737_DRIVER_COUNT][192]; +bool g_pwm_buffer_update_required[IS31FL3737_DRIVER_COUNT] = {false}; -uint8_t g_led_control_registers[DRIVER_COUNT][24] = {0}; -bool g_led_control_registers_update_required[DRIVER_COUNT] = {false}; +uint8_t g_led_control_registers[IS31FL3737_DRIVER_COUNT][24] = {0}; +bool g_led_control_registers_update_required[IS31FL3737_DRIVER_COUNT] = {false}; void is31fl3737_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 IS31FL3737_I2C_PERSISTENCE > 0 + for (uint8_t i = 0; i < IS31FL3737_I2C_PERSISTENCE; i++) { + if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3737_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, IS31FL3737_I2C_TIMEOUT); #endif } @@ -116,12 +105,12 @@ void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) { // thus this sets registers 0x00-0x0F, 0x10-0x1F, 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 IS31FL3737_I2C_PERSISTENCE > 0 + for (uint8_t i = 0; i < IS31FL3737_I2C_PERSISTENCE; i++) { + if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3737_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, IS31FL3737_I2C_TIMEOUT); #endif } } @@ -133,20 +122,20 @@ void is31fl3737_init(uint8_t addr) { // then disable software shutdown. // Unlock the command register. - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER_WRITELOCK, 0xC5); // Select PG0 - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER, IS31FL3737_PAGE_LEDCONTROL); // Turn off all LEDs. for (int i = 0x00; i <= 0x17; i++) { is31fl3737_write_register(addr, i, 0x00); } // Unlock the command register. - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER_WRITELOCK, 0xC5); // Select PG1 - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER, IS31FL3737_PAGE_PWM); // Set PWM on all LEDs to 0 // No need to setup Breath registers to PWM as that is the default. for (int i = 0x00; i <= 0xBF; i++) { @@ -154,18 +143,18 @@ void is31fl3737_init(uint8_t addr) { } // Unlock the command register. - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER_WRITELOCK, 0xC5); // Select PG3 - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_FUNCTION); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER, IS31FL3737_PAGE_FUNCTION); // Set de-ghost pull-up resistors (SWx) - is31fl3737_write_register(addr, ISSI_REG_SWPULLUP, ISSI_SWPULLUP); + is31fl3737_write_register(addr, IS31FL3737_REG_SWPULLUP, IS31FL3737_SWPULLUP); // Set de-ghost pull-down resistors (CSx) - is31fl3737_write_register(addr, ISSI_REG_CSPULLUP, ISSI_CSPULLUP); + is31fl3737_write_register(addr, IS31FL3737_REG_CSPULLUP, IS31FL3737_CSPULLUP); // Set global current to maximum. - is31fl3737_write_register(addr, ISSI_REG_GLOBALCURRENT, ISSI_GLOBALCURRENT); + is31fl3737_write_register(addr, IS31FL3737_REG_GLOBALCURRENT, IS31FL3737_GLOBALCURRENT); // Disable software shutdown. - is31fl3737_write_register(addr, ISSI_REG_CONFIGURATION, ((ISSI_PWM_FREQUENCY & 0b111) << 3) | 0x01); + is31fl3737_write_register(addr, IS31FL3737_REG_CONFIGURATION, ((IS31FL3737_PWM_FREQUENCY & 0b111) << 3) | 0x01); // Wait 10ms to ensure the device has woken up. wait_ms(10); @@ -225,22 +214,22 @@ void is31fl3737_set_led_control_register(uint8_t index, bool red, bool green, bo void is31fl3737_update_pwm_buffers(uint8_t addr, uint8_t index) { if (g_pwm_buffer_update_required[index]) { // Firstly we need to unlock the command register and select PG1 - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5); - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER_WRITELOCK, 0xC5); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER, IS31FL3737_PAGE_PWM); is31fl3737_write_pwm_buffer(addr, g_pwm_buffer[index]); + g_pwm_buffer_update_required[index] = false; } - g_pwm_buffer_update_required[index] = false; } void is31fl3737_update_led_control_registers(uint8_t addr, uint8_t index) { if (g_led_control_registers_update_required[index]) { // Firstly we need to unlock the command register and select PG0 - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5); - is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER_WRITELOCK, 0xC5); + is31fl3737_write_register(addr, IS31FL3737_COMMANDREGISTER, IS31FL3737_PAGE_LEDCONTROL); for (int i = 0; i < 24; i++) { is31fl3737_write_register(addr, i, g_led_control_registers[index][i]); } + g_led_control_registers_update_required[index] = false; } - g_led_control_registers_update_required[index] = false; } |