EMAC driver structure.

#include <emac.h>

Data Fields
emac_dev_tx_cb_t	func_rx_cb
	Optional callback to be invoked once a frame has been received. More...

emac_dev_tx_cb_t *	func_tx_cb_list
	Optional callback list to be invoked once TD has been processed. More...

emac_dev_wakeup_cb_t	func_wakeup_cb
	Optional callback to be invoked once several TDs have been released. More...

Emac *	p_hw
	Pointer to HW register base. More...

uint8_t *	p_rx_buffer
	Pointer to allocated RX buffer. More...

emac_rx_descriptor_t *	p_rx_dscr
	Pointer to Rx TDs (must be 8-byte aligned) More...

uint8_t *	p_tx_buffer
	Pointer to allocated TX buffer. More...

emac_tx_descriptor_t *	p_tx_dscr
	Pointer to Tx TDs (must be 8-byte aligned) More...

uint8_t	uc_wakeup_threshold
	Number of free TD before wakeup callback is invoked. More...

uint16_t	us_rx_idx
	RX index for current processing TD. More...

uint16_t	us_rx_list_size
	RX TD list size. More...

uint16_t	us_tx_head
	Circular buffer head pointer by upper layer (buffer to be sent) More...

uint16_t	us_tx_list_size
	TX TD list size. More...

uint16_t	us_tx_tail
	Circular buffer tail pointer incremented by handlers (buffer sent) More...

emac_dev_tx_cb_t emac_device::func_rx_cb

Optional callback to be invoked once a frame has been received.

Referenced by emac_dev_set_rx_callback(), and emac_handler().

emac_dev_tx_cb_t* emac_device::func_tx_cb_list

Optional callback list to be invoked once TD has been processed.

Referenced by emac_dev_write(), emac_handler(), and emac_init_mem().

emac_dev_wakeup_cb_t emac_device::func_wakeup_cb

Optional callback to be invoked once several TDs have been released.

Referenced by emac_dev_set_tx_wakeup_callback(), and emac_handler().

Emac* emac_device::p_hw

Pointer to HW register base.

Referenced by emac_dev_reset(), emac_dev_set_rx_callback(), emac_dev_write(), emac_handler(), emac_reset_rx_mem(), emac_reset_tx_mem(), low_level_init(), main(), and run_emac_link_test().

uint8_t* emac_device::p_rx_buffer

Pointer to allocated RX buffer.

Referenced by emac_init_mem(), and emac_reset_rx_mem().

emac_rx_descriptor_t* emac_device::p_rx_dscr

Pointer to Rx TDs (must be 8-byte aligned)

Referenced by emac_dev_read(), emac_init_mem(), and emac_reset_rx_mem().

uint8_t* emac_device::p_tx_buffer

Pointer to allocated TX buffer.

Section 3.6 of AMBA 2.0 spec states that burst should not cross 1K Boundaries. Receive buffer manager writes are burst of 2 words => 3 lsb bits of the address shall be set to 0.

Referenced by emac_init_mem(), and emac_reset_tx_mem().

emac_tx_descriptor_t* emac_device::p_tx_dscr

Pointer to Tx TDs (must be 8-byte aligned)

Referenced by emac_dev_write(), emac_handler(), emac_init_mem(), and emac_reset_tx_mem().

uint8_t emac_device::uc_wakeup_threshold

Number of free TD before wakeup callback is invoked.

Referenced by emac_dev_set_tx_wakeup_callback(), and emac_handler().

uint16_t emac_device::us_rx_idx

RX index for current processing TD.

Referenced by emac_dev_read(), and emac_reset_rx_mem().

uint16_t emac_device::us_rx_list_size

RX TD list size.