AW86225

Awinic AW86225 Vibration motor driver. More...

Data Structures
struct	pbl_aw86225_state
	AW86225 driver state, owned by the driver. More...
struct	pbl_aw86225
	AW86225 haptic driver. More...

Macros
#define	PBL_AW86225_DEFINE(sym, _bus, _addr, _reset)
	Define an AW86225.

Detailed Description

Awinic AW86225 Vibration motor driver.

Plays a sine cycle at the LRA's resonant frequency from the chip's RAM in an infinite loop, with the gain compensated for the supply voltage. The LRA is described by the CONFIG_VIBE_AW86225_* options.

PBL_AW86225_DEFINE(s_aw86225, &s_i2c.bus, 0x58, PBL_GPIO(SF32LB_GPIO1, 1, PBL_GPIO_ACTIVE_LOW));
 
const struct pbl_vibe *const VIBE = &s_aw86225.vibe;

---

Data Structure Documentation

pbl_aw86225_state

struct pbl_aw86225_state

AW86225 driver state, owned by the driver.

Data Fields
bool	playing	Playback running.
uint8_t	strength	Drive strength, 0 to VIBE_STRENGTH_MAX.
uint8_t	trim_lra	Resonant frequency trim.
bool	trim_valid	trim_lra holds a calibration.
uint16_t	vbat_mv	Supply voltage measured before the last playback, in mV, or 0 if not measured.

pbl_aw86225

struct pbl_aw86225

AW86225 haptic driver.

Data Fields
struct pbl_i2c_dev	i2c	I2C device.
struct pbl_gpio	reset	Reset line, active while the chip is held in reset.
struct pbl_aw86225_state *	state	Driver state.
struct pbl_vibe	vibe	Vibration motor, child of the I2C bus.

Macro Definition Documentation

PBL_AW86225_DEFINE

#define PBL_AW86225_DEFINE	(		sym,
			_bus,
			_addr,
			_reset
	)

Value:

  PBL_VIBE_STATE_DEFINE(sym);                                                                 \
  static struct pbl_aw86225_state sym##_aw86225_state = {.strength = VIBE_STRENGTH_MAX};      \
  const struct pbl_aw86225 sym = {                                                            \
    .vibe = PBL_VIBE_INIT(sym, "aw86225", &(_bus)->dev, &pbl_aw86225_ops, VIBE_STRENGTH_OFF), \
    .state = &sym##_aw86225_state,                                                            \
    .i2c = PBL_I2C_DEV(_bus, _addr),                                                          \
    .reset = _reset,                                                                          \
  };                                                                                          \
  PBL_DEVICE_REGISTER(sym, &sym.vibe.dev)

Define an AW86225.

Parameters

sym	Symbol of the instance; the motor is sym.vibe.
_bus	I2C bus.
_addr	7-bit I2C address.
_reset	Reset line (struct pbl_gpio).