diff options
Diffstat (limited to 'drivers/net/can/old/ccan/ccan.h')
| -rw-r--r-- | drivers/net/can/old/ccan/ccan.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/net/can/old/ccan/ccan.h b/drivers/net/can/old/ccan/ccan.h new file mode 100644 index 000000000000..b7a5460195e1 --- /dev/null +++ b/drivers/net/can/old/ccan/ccan.h @@ -0,0 +1,140 @@ +/* + * drivers/can/c_can.h + * + * Copyright (C) 2007 + * + * - Sascha Hauer, Marc Kleine-Budde, Pengutronix + * - Simon Kallweit, intefo AG + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the version 2 of the GNU General Public License + * as published by the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __CCAN_H__ +#define __CCAN_H__ + +#include <linux/can.h> +#include <linux/platform_device.h> + +#undef CCAN_DEBUG + +enum c_regs { + CAN_CONTROL = 0x00, + CAN_STATUS = 0x02, + CAN_ERROR = 0x04, + CAN_BTR = 0x06, + CAN_IR = 0x08, + CAN_TEST = 0x0a, + CAN_BRP_EXT = 0x0c, + CAN_IF1 = 0x10, + CAN_IF2 = 0x40, + CAN_TXRQST = 0x80, /* 32bit */ + CAN_NEWDAT = 0x90, /* 32bit */ + CAN_INTPND = 0xa0, /* 32bit */ + CAN_MSGVAL = 0xb0, /* 32bit */ +}; + +#define CAN_IF_COMR(x) (CAN_IF1 + (x) * 0x30 + 0x00) +#define CAN_IF_COMM(x) (CAN_IF1 + (x) * 0x30 + 0x02) +#define CAN_IF_MASK(x) (CAN_IF1 + (x) * 0x30 + 0x04) /* 32bit */ +#define CAN_IF_ARB(x) (CAN_IF1 + (x) * 0x30 + 0x08) /* 32bit */ +#define CAN_IF_MCONT(x) (CAN_IF1 + (x) * 0x30 + 0x0c) +#define CAN_IF_DATAA(x) (CAN_IF1 + (x) * 0x30 + 0x0e) /* 32bit */ +#define CAN_IF_DATAB(x) (CAN_IF1 + (x) * 0x30 + 0x12) /* 32bit */ + +#define CONTROL_TEST (1<<7) +#define CONTROL_CCE (1<<6) +#define CONTROL_DAR (1<<5) +#define CONTROL_EIE (1<<3) +#define CONTROL_SIE (1<<2) +#define CONTROL_IE (1<<1) +#define CONTROL_INIT (1<<0) + +#define TEST_RX (1<<7) +#define TEST_TX1 (1<<6) +#define TEST_TX2 (1<<5) +#define TEST_LBACK (1<<4) +#define TEST_SILENT (1<<3) +#define TEST_BASIC (1<<2) + +#define STATUS_BOFF (1<<7) +#define STATUS_EWARN (1<<6) +#define STATUS_EPASS (1<<5) +#define STATUS_RXOK (1<<4) +#define STATUS_TXOK (1<<3) +#define STATUS_LEC_MASK (1<<2) +#define LEC_STUFF_ERROR 1 +#define LEC_FORM_ERROR 2 +#define LEC_ACK_ERROR 3 +#define LEC_BIT1_ERROR 4 + +#define BTR_BRP_MASK 0x3f +#define BTR_BRP_SHIFT 0 +#define BTR_SJW_SHIFT 6 +#define BTR_SJW_MASK (0x3 << BTR_SJW_SHIFT) +#define BTR_TSEG1_SHIFT 8 +#define BTR_TSEG1_MASK (0xf << BTR_TSEG1_SHIFT) +#define BTR_TSEG2_SHIFT 12 +#define BTR_TSEG2_MASK (0x7 << BTR_TSEG2_SHIFT) + +#define IF_COMR_BUSY (1<<15) + +#define IF_COMM_WR (1<<7) +#define IF_COMM_MASK (1<<6) +#define IF_COMM_ARB (1<<5) +#define IF_COMM_CONTROL (1<<4) +#define IF_COMM_CLR_INT_PND (1<<3) +#define IF_COMM_TXRQST (1<<2) +#define IF_COMM_DATAA (1<<1) +#define IF_COMM_DATAB (1<<0) + +#define IF_COMM_ALL (IF_COMM_MASK | IF_COMM_ARB | IF_COMM_CONTROL | \ + IF_COMM_TXRQST | IF_COMM_DATAA | IF_COMM_DATAB) + +#define IF_ARB_MSGVAL (1<<31) +#define IF_ARB_MSGXTD (1<<30) +#define IF_ARB_TRANSMIT (1<<29) + +#define IF_MCONT_NEWDAT (1<<15) +#define IF_MCONT_MSGLST (1<<14) +#define IF_MCONT_INTPND (1<<13) +#define IF_MCONT_UMASK (1<<12) +#define IF_MCONT_TXIE (1<<11) +#define IF_MCONT_RXIE (1<<10) +#define IF_MCONT_RMTEN (1<<9) +#define IF_MCONT_TXRQST (1<<8) +#define IF_MCONT_EOB (1<<7) + +#define MAX_OBJECT 31 +#define MAX_TRANSMIT_OBJECT 15 +#define RECEIVE_OBJECT_BITS 0xffff0000 + +struct ccan_priv { + struct can_priv can; + struct net_device *dev; + int tx_object; + int last_status; + struct delayed_work work; + u16 (*read_reg)(struct net_device *dev, enum c_regs reg); + void (*write_reg)(struct net_device *dev, enum c_regs reg, u16 val); +#ifdef CCAN_DEBUG + unsigned int bufstat[MAX_OBJECT + 1]; +#endif +}; + +extern struct net_device *alloc_ccandev(int sizeof_priv); +extern void free_ccandev(struct net_device *dev); +extern int register_ccandev(struct net_device *dev); +extern void unregister_ccandev(struct net_device *dev); + +#endif /* __CCAN_H__ */ |