Baremetal CA-821x Dispatch

Internal functions used by ca821x-api to handle messages going to and from the CA-821x. More...

Collaboration diagram for Baremetal CA-821x Dispatch:

Functions
ca_error	DISPATCH_ToCA821x (const uint8_t *buf, u8_t *response, struct ca821x_dev *pDeviceRef)
	Send Request to CA-821x over SPI. More...
ca_error	DISPATCH_FromCA821x (struct ca821x_dev *pDeviceRef)
	process and dispatch on any received SPI messages from the ca821x More...
void	DISPATCH_ReadCA821x (struct ca821x_dev *pDeviceRef)
	Read SPI messages from the ca821x. More...

Detailed Description

Internal functions used by ca821x-api to handle messages going to and from the CA-821x.

Function Documentation

DISPATCH_FromCA821x()

ca_error DISPATCH_FromCA821x

(

struct ca821x_dev *

pDeviceRef

)

process and dispatch on any received SPI messages from the ca821x

This function is not re-entrant - i.e. you cannot call DISPATCH_FromCA821x while already in a callback that DISPATCH_FromCA821x has called. If you try to do this, the function will fail the second call and return CA_ERROR_INVALID_STATE

Return values

CMB_SUCCESS,CA_ERROR_INVALID_STATE

DISPATCH_ReadCA821x()

void DISPATCH_ReadCA821x

(

struct ca821x_dev *

pDeviceRef

)

Read SPI messages from the ca821x.

This function should be called by the BSP on the falling edge of the RFIRQ signal from the CA821x.

DISPATCH_ToCA821x()

ca_error DISPATCH_ToCA821x	(	const uint8_t *	buf,
		u8_t *	response,
		struct ca821x_dev *	pDeviceRef
	)

Send Request to CA-821x over SPI.

This function is the system-specific definition of ca821x_api_downstream. It transmits a SAP command and if applicable, waits for a synchronous confirm and stores it in the 'response' buffer.

Parameters

buf	- Message to transmit, length is encoded in Cascoda TLV format
response	- Buffer to fill with response
pDeviceRef	- Pointer to initialised ca821x_dev struct

Returns

Status