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132 lines
3.7 KiB
132 lines
3.7 KiB
/* |
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* Linux ARCnet driver - COM20020 chipset support - function declarations |
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* |
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* Written 1997 by David Woodhouse. |
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* Written 1994-1999 by Avery Pennarun. |
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* Derived from skeleton.c by Donald Becker. |
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* |
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* Special thanks to Contemporary Controls, Inc. (www.ccontrols.com) |
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* for sponsoring the further development of this driver. |
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* |
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* ********************** |
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* |
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* The original copyright of skeleton.c was as follows: |
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* |
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* skeleton.c Written 1993 by Donald Becker. |
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* Copyright 1993 United States Government as represented by the |
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* Director, National Security Agency. This software may only be used |
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* and distributed according to the terms of the GNU General Public License as |
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* modified by SRC, incorporated herein by reference. |
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* |
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* ********************** |
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* |
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* For more details, see drivers/net/arcnet.c |
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* |
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* ********************** |
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*/ |
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#ifndef __COM20020_H |
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#define __COM20020_H |
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#include <linux/leds.h> |
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int com20020_check(struct net_device *dev); |
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int com20020_found(struct net_device *dev, int shared); |
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extern const struct net_device_ops com20020_netdev_ops; |
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/* The number of low I/O ports used by the card. */ |
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#define ARCNET_TOTAL_SIZE 8 |
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#define PLX_PCI_MAX_CARDS 2 |
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struct ledoffsets { |
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int green; |
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int red; |
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}; |
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struct com20020_pci_channel_map { |
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u32 bar; |
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u32 offset; |
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u32 size; /* 0x00 - auto, e.g. length of entire bar */ |
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}; |
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struct com20020_pci_card_info { |
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const char *name; |
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int devcount; |
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struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS]; |
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struct com20020_pci_channel_map misc_map; |
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struct ledoffsets leds[PLX_PCI_MAX_CARDS]; |
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int rotary; |
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unsigned int flags; |
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}; |
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struct com20020_priv { |
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struct com20020_pci_card_info *ci; |
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struct list_head list_dev; |
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resource_size_t misc; |
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}; |
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struct com20020_dev { |
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struct list_head list; |
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struct net_device *dev; |
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struct led_classdev tx_led; |
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struct led_classdev recon_led; |
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struct com20020_priv *pci_priv; |
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int index; |
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}; |
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#define COM20020_REG_W_INTMASK 0 /* writable */ |
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#define COM20020_REG_R_STATUS 0 /* readable */ |
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#define COM20020_REG_W_COMMAND 1 /* standard arcnet commands */ |
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#define COM20020_REG_R_DIAGSTAT 1 /* diagnostic status */ |
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#define COM20020_REG_W_ADDR_HI 2 /* control for IO-mapped memory */ |
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#define COM20020_REG_W_ADDR_LO 3 |
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#define COM20020_REG_RW_MEMDATA 4 /* data port for IO-mapped memory */ |
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#define COM20020_REG_W_SUBADR 5 /* the extended port _XREG refers to */ |
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#define COM20020_REG_W_CONFIG 6 /* configuration */ |
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#define COM20020_REG_W_XREG 7 /* extra |
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* (indexed by _CONFIG or _SUBADDR) |
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*/ |
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/* in the ADDR_HI register */ |
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#define RDDATAflag 0x80 /* next access is a read (not a write) */ |
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/* in the DIAGSTAT register */ |
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#define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */ |
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/* in the CONFIG register */ |
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#define RESETcfg 0x80 /* put card in reset state */ |
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#define TXENcfg 0x20 /* enable TX */ |
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#define XTOcfg(x) ((x) << 3) /* extended timeout */ |
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/* in SETUP register */ |
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#define PROMISCset 0x10 /* enable RCV_ALL */ |
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#define P1MODE 0x80 /* enable P1-MODE for Backplane */ |
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#define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */ |
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/* COM2002x */ |
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#define SUB_TENTATIVE 0 /* tentative node ID */ |
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#define SUB_NODE 1 /* node ID */ |
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#define SUB_SETUP1 2 /* various options */ |
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#define SUB_TEST 3 /* test/diag register */ |
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/* COM20022 only */ |
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#define SUB_SETUP2 4 /* sundry options */ |
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#define SUB_BUSCTL 5 /* bus control options */ |
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#define SUB_DMACOUNT 6 /* DMA count options */ |
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static inline void com20020_set_subaddress(struct arcnet_local *lp, |
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int ioaddr, int val) |
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{ |
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if (val < 4) { |
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lp->config = (lp->config & ~0x03) | val; |
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arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); |
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} else { |
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arcnet_outb(val, ioaddr, COM20020_REG_W_SUBADR); |
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} |
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} |
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#endif /* __COM20020_H */
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