xref: /linux/include/linux/fsl/bestcomm/fec.h (revision e5451c8f8330e03ad3cfa16048b4daf961af434f)
1 /*
2  * Header for Bestcomm FEC tasks driver
3  *
4  *
5  * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com>
6  * Copyright (C) 2003-2004 MontaVista, Software, Inc.
7  *                         ( by Dale Farnsworth <dfarnsworth@mvista.com> )
8  *
9  * This file is licensed under the terms of the GNU General Public License
10  * version 2. This program is licensed "as is" without any warranty of any
11  * kind, whether express or implied.
12  */
13 
14 #ifndef __BESTCOMM_FEC_H__
15 #define __BESTCOMM_FEC_H__
16 
17 
18 struct bcom_fec_bd {
19 	u32	status;
20 	u32	skb_pa;
21 };
22 
23 #define BCOM_FEC_TX_BD_TFD	0x08000000ul	/* transmit frame done */
24 #define BCOM_FEC_TX_BD_TC	0x04000000ul	/* transmit CRC */
25 #define BCOM_FEC_TX_BD_ABC	0x02000000ul	/* append bad CRC */
26 
27 #define BCOM_FEC_RX_BD_L	0x08000000ul	/* buffer is last in frame */
28 #define BCOM_FEC_RX_BD_BC	0x00800000ul	/* DA is broadcast */
29 #define BCOM_FEC_RX_BD_MC	0x00400000ul	/* DA is multicast and not broadcast */
30 #define BCOM_FEC_RX_BD_LG	0x00200000ul	/* Rx frame length violation */
31 #define BCOM_FEC_RX_BD_NO	0x00100000ul	/* Rx non-octet aligned frame */
32 #define BCOM_FEC_RX_BD_CR	0x00040000ul	/* Rx CRC error */
33 #define BCOM_FEC_RX_BD_OV	0x00020000ul	/* overrun */
34 #define BCOM_FEC_RX_BD_TR	0x00010000ul	/* Rx frame truncated */
35 #define BCOM_FEC_RX_BD_LEN_MASK	0x000007fful	/* mask for length of received frame */
36 #define BCOM_FEC_RX_BD_ERRORS	(BCOM_FEC_RX_BD_LG | BCOM_FEC_RX_BD_NO | \
37 		BCOM_FEC_RX_BD_CR | BCOM_FEC_RX_BD_OV | BCOM_FEC_RX_BD_TR)
38 
39 
40 extern struct bcom_task *
41 bcom_fec_rx_init(int queue_len, phys_addr_t fifo, int maxbufsize);
42 
43 extern int
44 bcom_fec_rx_reset(struct bcom_task *tsk);
45 
46 extern void
47 bcom_fec_rx_release(struct bcom_task *tsk);
48 
49 
50 extern struct bcom_task *
51 bcom_fec_tx_init(int queue_len, phys_addr_t fifo);
52 
53 extern int
54 bcom_fec_tx_reset(struct bcom_task *tsk);
55 
56 extern void
57 bcom_fec_tx_release(struct bcom_task *tsk);
58 
59 
60 #endif /* __BESTCOMM_FEC_H__ */
61 
62