gmac_raw_2.c File Reference

GMAC (Ethernet MAC) driver for SAM.

Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.

#include "compiler.h"
#include "gmac.h"
#include "gmac_raw_2.h"
#include <string.h>
#include "conf_eth.h"

Data Structures
struct	gmac_dev_mem
	GMAC device memory management struct. More...

Macros
#define	CIRC_CLEAR(head, tail)   (head = tail = 0)
	Clear circular buffer. More...
#define	CIRC_CNT(head, tail, size)   (((head) - (tail)) % (size))
	Return count in buffer. More...
#define	CIRC_EMPTY(head, tail)   (head == tail)
	Circular buffer is empty ? More...
#define	CIRC_SPACE(head, tail, size)   CIRC_CNT((tail),((head)+1),(size))

Typedefs
typedef struct gmac_dev_mem	gmac_dev_mem_t
	GMAC device memory management struct. More...

Functions
static void	circ_inc (uint16_t *headortail, uint32_t size)
	Increment head or tail. More...
uint8_t *	gmac_dev_get_tx_buffer (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx)
uint32_t	gmac_dev_get_tx_load (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx)
	Get current load of transmit. More...
void	gmac_dev_init (Gmac *p_gmac, gmac_device_t *p_gmac_dev, gmac_options_t *p_opt)
	Initialize the GMAC driver. More...
uint32_t	gmac_dev_read (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx, uint8_t *p_frame, uint32_t ul_frame_size, uint32_t *p_rcv_size)
	Frames can be read from the GMAC in multiple sections. More...
void	gmac_dev_reset (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx)
	Reset TX & RX queue & statistics. More...
uint32_t	gmac_dev_rx_buf_used (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx)
	Return the number of RX buffer full. More...
void	gmac_dev_set_rx_callback (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx, gmac_dev_tx_cb_t func_rx_cb)
	Register/Clear RX callback. More...
uint8_t	gmac_dev_set_tx_wakeup_callback (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx, gmac_dev_wakeup_cb_t func_wakeup_cb, uint8_t uc_threshold)
	Register/Clear TX wakeup callback. More...
uint32_t	gmac_dev_tx_buf_used (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx)
	Return the number of TX buffer waiting for transfer. More...
uint32_t	gmac_dev_write (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx, void *p_buffer, uint32_t ul_size, gmac_dev_tx_cb_t func_tx_cb)
	Send ulLength bytes from pcFrom. More...
uint32_t	gmac_dev_write_nocopy (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx, uint32_t ul_size, gmac_dev_tx_cb_t func_tx_cb)
void	gmac_handler (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx)
	GMAC Interrupt handler. More...
static uint8_t	gmac_init_mem (gmac_device_t *p_gmac_dev, gmac_quelist_t queue_idx, gmac_dev_mem_t *p_dev_mm, gmac_dev_tx_cb_t *p_tx_cb)
	Initialize the allocated buffer lists for GMAC driver to transfer data. More...
static void	gmac_init_queue (Gmac *p_gmac, gmac_device_t *p_gmac_dev)
static void	gmac_reset_rx_mem (gmac_device_t *p_dev, gmac_quelist_t queue_idx)
	Disable receiver, reset registers and descriptor list. More...
static void	gmac_reset_tx_mem (gmac_device_t *p_dev, gmac_quelist_t queue_idx)
	Disable transfer, reset registers and descriptor lists. More...

Variables
static gmac_rx_descriptor_t	gs_rx_desc [GMAC_RX_BUFFERS]
static gmac_rx_descriptor_t	gs_rx_desc_null
	RX descriptors lists. More...
static gmac_dev_tx_cb_t	gs_tx_callback [GMAC_TX_BUFFERS]
	TX callback lists. More...
static gmac_tx_descriptor_t	gs_tx_desc [GMAC_TX_BUFFERS]
static gmac_tx_descriptor_t	gs_tx_desc_null
	TX descriptor lists. More...
static uint8_t	gs_uc_rx_buffer [GMAC_RX_BUFFERS *GMAC_RX_UNITSIZE]
	Receive Buffer. More...
static uint8_t	gs_uc_tx_buffer [GMAC_TX_BUFFERS *GMAC_TX_UNITSIZE]
	Send Buffer. More...