diff options
Diffstat (limited to 'common/lp5562.c')
| -rw-r--r-- | common/lp5562.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/common/lp5562.c b/common/lp5562.c index a4c0e85fd6..09ee0df2c5 100644 --- a/common/lp5562.c +++ b/common/lp5562.c @@ -21,6 +21,11 @@ inline int lp5562_write(uint8_t reg, uint8_t val) return i2c_write8(I2C_PORT_HOST, LP5562_I2C_ADDR, reg, val); } +inline int lp5562_read(uint8_t reg, int *val) +{ + return i2c_read8(I2C_PORT_HOST, LP5562_I2C_ADDR, reg, val); +} + int lp5562_set_color(uint32_t rgb) { int ret = 0; @@ -32,6 +37,51 @@ int lp5562_set_color(uint32_t rgb) return ret; } +int lp5562_set_engine(uint8_t r, uint8_t g, uint8_t b) +{ + return lp5562_write(LP5562_REG_LED_MAP, (r << 4) | (g << 2) | b); +} + +int lp5562_engine_load(int engine, uint8_t *program, int size) +{ + int prog_addr = LP5562_REG_ENG_PROG(engine); + int i, ret, val; + int shift = 6 - engine * 2; + + ret = lp5562_read(LP5562_REG_OP_MODE, &val); + if (ret) + return ret; + val &= ~(0x3 << shift); + val |= 0x1 << shift; + ret = lp5562_write(LP5562_REG_OP_MODE, val); + if (ret) + return ret; + + for (i = 0; i < size; ++i) { + ret = lp5562_write(prog_addr + i, program[i]); + if (ret) + return ret; + } + + val &= ~(0x3 << shift); + val |= 0x2 << shift; + ret = lp5562_write(LP5562_REG_OP_MODE, val); + + return ret; +} + +int lp5562_engine_control(int eng1, int eng2, int eng3) +{ + int ret, val; + + ret = lp5562_read(LP5562_REG_ENABLE, &val); + if (ret) + return ret; + val &= 0xc0; + val |= (eng1 << 4) | (eng2 << 2) | eng3; + return lp5562_write(LP5562_REG_ENABLE, val); +} + int lp5562_poweron(void) { int ret = 0; |