| 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
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| 2 | /* |
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| 3 | * Header for ni_labpc ISA/PCMCIA/PCI drivers |
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| 4 | * |
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| 5 | * Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net> |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef _NI_LABPC_H |
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| 9 | #define _NI_LABPC_H |
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| 10 | |
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| 11 | enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, |
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| 12 | isa_dma_transfer |
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| 13 | }; |
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| 14 | |
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| 15 | struct labpc_boardinfo { |
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| 16 | const char *name; |
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| 17 | int ai_speed; /* maximum input speed in ns */ |
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| 18 | unsigned ai_scan_up:1; /* can auto scan up in ai channels */ |
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| 19 | unsigned has_ao:1; /* has analog outputs */ |
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| 20 | unsigned is_labpc1200:1; /* has extra regs compared to pc+ */ |
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| 21 | }; |
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| 22 | |
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| 23 | struct labpc_private { |
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| 24 | struct comedi_isadma *dma; |
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| 25 | struct comedi_8254 *counter; |
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| 26 | |
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| 27 | /* number of data points left to be taken */ |
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| 28 | unsigned long long count; |
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| 29 | /* software copys of bits written to command registers */ |
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| 30 | unsigned int cmd1; |
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| 31 | unsigned int cmd2; |
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| 32 | unsigned int cmd3; |
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| 33 | unsigned int cmd4; |
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| 34 | unsigned int cmd5; |
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| 35 | unsigned int cmd6; |
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| 36 | /* store last read of board status registers */ |
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| 37 | unsigned int stat1; |
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| 38 | unsigned int stat2; |
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| 39 | |
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| 40 | /* we are using dma/fifo-half-full/etc. */ |
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| 41 | enum transfer_type current_transfer; |
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| 42 | /* |
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| 43 | * function pointers so we can use inb/outb or readb/writeb as |
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| 44 | * appropriate |
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| 45 | */ |
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| 46 | unsigned int (*read_byte)(struct comedi_device *dev, unsigned long reg); |
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| 47 | void (*write_byte)(struct comedi_device *dev, |
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| 48 | unsigned int byte, unsigned long reg); |
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| 49 | }; |
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| 50 | |
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| 51 | int labpc_common_attach(struct comedi_device *dev, |
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| 52 | unsigned int irq, unsigned long isr_flags); |
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| 53 | void labpc_common_detach(struct comedi_device *dev); |
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| 54 | |
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| 55 | #endif /* _NI_LABPC_H */ |
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| 56 | |
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