arch/powerpc/sysdev/bestcomm/fec.h

   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