W1160

W1160 Ambient light sensor driver. More...

Data Structures
struct	pbl_w1160_state
	W1160 driver state, owned by the driver. More...
struct	pbl_w1160
	W1160 ambient light sensor. More...

Macros
#define	PBL_W1160_DEFINE(sym, _bus, _addr, _scale)
	Define a W1160.

Detailed Description

W1160 Ambient light sensor driver.

While primed the sensor samples continuously and reads are plain register reads; otherwise each read is a one-shot conversion.

static const struct pbl_als_scale s_w1160_scale = {.num = 100, .den = 483};
 
PBL_W1160_DEFINE(s_w1160, &s_i2c.bus, 0x47, &s_w1160_scale);
 
const struct pbl_als *const ALS = &s_w1160.als;

---

Data Structure Documentation

pbl_w1160_state

struct pbl_w1160_state

W1160 driver state, owned by the driver.

Data Fields
bool	active	Primed.
bool	cache_valid	cached_level holds a reading from the current window.
uint16_t	cached_level	Last level read.
bool	sampling	Continuous sampling enabled.
RtcTicks	sampling_started_ticks	Time continuous sampling was enabled.

pbl_w1160

struct pbl_w1160

W1160 ambient light sensor.

Data Fields
struct pbl_als	als	Ambient light sensor, child of the I2C bus.
struct pbl_i2c_dev	i2c	I2C device.
struct pbl_w1160_state *	state	Driver state.

Macro Definition Documentation

PBL_W1160_DEFINE

#define PBL_W1160_DEFINE	(		sym,
			_bus,
			_addr,
			_scale
	)

Value:

  PBL_ALS_STATE_DEFINE(sym);                                                   \
  static struct pbl_w1160_state sym##_w1160_state;                             \
  const struct pbl_w1160 sym = {                                               \
    .als = PBL_ALS_INIT(sym, "w1160", &(_bus)->dev, &pbl_w1160_ops, (_scale)), \
    .state = &sym##_w1160_state,                                               \
    .i2c = PBL_I2C_DEV(_bus, _addr),                                           \
  };                                                                           \
  PBL_DEVICE_REGISTER(sym, &sym.als.dev)

Define a W1160.

Parameters

sym	Symbol of the instance; the sensor is sym.als.
_bus	I2C bus.
_addr	7-bit I2C address.
_scale	Lux calibration (const struct pbl_als_scale *), or nullptr.