i2c/busses/i2c-cadence.c

141  * @CDNS_I2C_MODE_SLAVE:       I2C controller operating in slave mode
150  * enum cdns_i2c_slave_state - Slave state when I2C is operating in slave mode
152  * @CDNS_I2C_SLAVE_STATE_IDLE: I2C slave idle
153  * @CDNS_I2C_SLAVE_STATE_SEND: I2C slave sending data to master
154  * @CDNS_I2C_SLAVE_STATE_RECV: I2C slave receiving data from master
187  * @slave:		Registered slave instance.
188  * @dev_mode:		I2C operating role(master/slave).
216 	struct i2c_client *slave;
272 		 * will not detect any slave and without this delay, the IP will
278 		/* Enable i2c slave */
283 		/* Setting slave address */
284 		cdns_i2c_writereg(id->slave->addr & CDNS_I2C_ADDR_MASK,
287 		/* Enable slave send/receive interrupts */
302 		i2c_slave_event(id->slave, I2C_SLAVE_WRITE_REQUESTED, NULL);
311 		i2c_slave_event(id->slave, I2C_SLAVE_WRITE_RECEIVED, &data);
322 		i2c_slave_event(id->slave, I2C_SLAVE_READ_REQUESTED, &data);
324 		i2c_slave_event(id->slave, I2C_SLAVE_READ_PROCESSED, &data);
332  * cdns_i2c_slave_isr - Interrupt handler for the I2C device in slave role
336  * the I2C device in slave role.
363 			i2c_slave_event(id->slave, I2C_SLAVE_STOP, NULL);
373 			i2c_slave_event(id->slave, I2C_SLAVE_STOP, NULL);
381 		i2c_slave_event(id->slave, I2C_SLAVE_STOP, NULL);
458 		 * The controller sends NACK to the slave when transfer size
548  * This function passes the control to slave/master based on current role of
642 		 * writes to slave address register and control register.
717 	/* Set the slave address in address register - triggers operation. */
919 	/* Switch i2c mode to slave */
949 static int cdns_reg_slave(struct i2c_client *slave)
952 	struct cdns_i2c *id = container_of(slave->adapter, struct cdns_i2c,
955 	if (id->slave)
958 	if (slave->flags & I2C_CLIENT_TEN)
965 	/* Store slave information */
966 	id->slave = slave;
968 	/* Enable I2C slave */
974 static int cdns_unreg_slave(struct i2c_client *slave)
976 	struct cdns_i2c *id = container_of(slave->adapter, struct cdns_i2c,
981 	/* Remove slave information */
982 	id->slave = NULL;