diff options
Diffstat (limited to 'drivers/comedi/drivers/ni_labpc.h')
| -rw-r--r-- | drivers/comedi/drivers/ni_labpc.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/comedi/drivers/ni_labpc.h b/drivers/comedi/drivers/ni_labpc.h new file mode 100644 index 000000000000..728e901f53cd --- /dev/null +++ b/drivers/comedi/drivers/ni_labpc.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Header for ni_labpc ISA/PCMCIA/PCI drivers + * + * Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net> + */ + +#ifndef _NI_LABPC_H +#define _NI_LABPC_H + +enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, + isa_dma_transfer +}; + +struct labpc_boardinfo { + const char *name; + int ai_speed; /* maximum input speed in ns */ + unsigned ai_scan_up:1; /* can auto scan up in ai channels */ + unsigned has_ao:1; /* has analog outputs */ + unsigned is_labpc1200:1; /* has extra regs compared to pc+ */ +}; + +struct labpc_private { + struct comedi_isadma *dma; + struct comedi_8254 *counter; + + /* number of data points left to be taken */ + unsigned long long count; + /* software copys of bits written to command registers */ + unsigned int cmd1; + unsigned int cmd2; + unsigned int cmd3; + unsigned int cmd4; + unsigned int cmd5; + unsigned int cmd6; + /* store last read of board status registers */ + unsigned int stat1; + unsigned int stat2; + + /* we are using dma/fifo-half-full/etc. */ + enum transfer_type current_transfer; + /* + * function pointers so we can use inb/outb or readb/writeb as + * appropriate + */ + unsigned int (*read_byte)(struct comedi_device *dev, unsigned long reg); + void (*write_byte)(struct comedi_device *dev, + unsigned int byte, unsigned long reg); +}; + +int labpc_common_attach(struct comedi_device *dev, + unsigned int irq, unsigned long isr_flags); +void labpc_common_detach(struct comedi_device *dev); + +#endif /* _NI_LABPC_H */ |