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This commit is contained in:
Gregory Nutt 2016-01-30 11:27:49 -06:00
parent cccfb11e38
commit af335827d0
3 changed files with 26 additions and 24 deletions
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4
ChangeLog
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@ -11419,4 +11419,8 @@
* drivers/modem/u-blox.c and include/nuttx/drivers/u-blox.h: Add an upper
half driver for the U-Blox Modem. From Vladimir Komendantskiy
(2018-01-30).
* arch/arm/src/lpc17xx: Backport lpc43xx I2C driver, replacing the
the lpc17xx I2C drivers. This gives use the I2C_TRANSFER method.
(2016-01-30).

2
arch

@ -1 +1 @@
Subproject commit 5ea918534aef71cdff40f56081c70de8818cb5bc
Subproject commit 150916cbf96b04752df6874a7eccc6e52ace3815

44
include/nuttx/i2c/i2c_slave.h
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@ -92,35 +92,16 @@
#define I2CS_SETFREQUENCY(d,f) ((d)->ops->setfrequency(d,f))
/****************************************************************************
* Name: I2CS_SETADDRESS
*
* Description:
* Set the I2C slave address. This frequency will be retained in the struct
* i2c_slave_s instance and will be used with all transfers. Required.
*
* Input Parameters:
* dev - Device-specific state data
* address - The I2C slave address
* nbits - The number of address bits provided (7 or 10)
*
* Returned Value:
* Returns OK on success; a negated errno on failure.
*
****************************************************************************/
#define I2CS_SETADDRESS(d,a,n) ((d)->ops->setaddress(d,a,n))
/****************************************************************************
* Name: I2CS_SETOWNADDRESS
*
* Description:
* Set our own I2C address. Calling this function enables Slave mode and
* disables Master mode on given instance (note that I2C is a bus, where
* disables Master mode on the I2C bus (note that I2C is a bus, where
* multiple masters and slave may be handled by one device driver).
*
* One may register a callback to be notified about reception. During the
* slave mode reception, the function READ and WRITE must be used to
* slave mode reception, the methods READ and WRITE must be used to
* to handle reads and writes from a master.
*
* Input Parameters:
@ -179,6 +160,24 @@
#define I2CS_READ(d,b,l) ((d)->ops->read(d,b,l))
/****************************************************************************
* Name: I2CS_REGISTERCALLBACK
*
* Description:
* Register to receive a callback when something is received on I2C.
*
* Input Parameters:
* dev - Device-specific state data
* callback - The function to be called when something has been received.
* arg - User provided argument to be used with the callback
*
* Returned Value:
* 0: success, <0: A negated errno
*
****************************************************************************/
#define I2CS_REGISTERCALLBACK(d,c,a) ((d)->ops->registercallback(d,c,a))
/****************************************************************************
* Public Types
****************************************************************************/
@ -189,12 +188,11 @@ struct i2c_slave_s;
struct i2c_slaveops_s
{
uint32_t (*setfrequency)(FAR struct i2c_slave_s *dev, uint32_t frequency);
int (*setaddress)(FAR struct i2c_slave_s *dev, int addr, int nbits);
int (*setownaddress)(FAR struct i2c_slave_s *dev, int addr, int nbits);
int (*write)(FAR struct i2c_slave_s *dev, FAR const uint8_t *buffer,
int buflen);
int (*read)(FAR struct i2c_slave_s *dev, FAR uint8_t *buffer,
int buflen);
int (*setownaddress)(FAR struct i2c_slave_s *dev, int addr, int nbits);
int (*registercallback)(FAR struct i2c_slave_s *dev,
int (*callback)(FAR void *arg), FAR void *arg);
};