blob: 25aedd0e586781367a59739e75200cc9e271c9f1 [file] [log] [blame]
/*
drivers/ni_tio.h
Header file for NI general purpose counter support code (ni_tio.c)
COMEDI - Linux Control and Measurement Device Interface
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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.
*/
#ifndef _COMEDI_NI_TIO_H
#define _COMEDI_NI_TIO_H
#include "../comedidev.h"
/* forward declarations */
struct mite_struct;
struct ni_gpct_device;
enum ni_gpct_register {
NITIO_G0_AUTO_INC,
NITIO_G1_AUTO_INC,
NITIO_G2_AUTO_INC,
NITIO_G3_AUTO_INC,
NITIO_G0_CMD,
NITIO_G1_CMD,
NITIO_G2_CMD,
NITIO_G3_CMD,
NITIO_G0_HW_SAVE,
NITIO_G1_HW_SAVE,
NITIO_G2_HW_SAVE,
NITIO_G3_HW_SAVE,
NITIO_G0_SW_SAVE,
NITIO_G1_SW_SAVE,
NITIO_G2_SW_SAVE,
NITIO_G3_SW_SAVE,
NITIO_G0_MODE,
NITIO_G1_MODE,
NITIO_G2_MODE,
NITIO_G3_MODE,
NITIO_G0_LOADA,
NITIO_G1_LOADA,
NITIO_G2_LOADA,
NITIO_G3_LOADA,
NITIO_G0_LOADB,
NITIO_G1_LOADB,
NITIO_G2_LOADB,
NITIO_G3_LOADB,
NITIO_G0_INPUT_SEL,
NITIO_G1_INPUT_SEL,
NITIO_G2_INPUT_SEL,
NITIO_G3_INPUT_SEL,
NITIO_G0_CNT_MODE,
NITIO_G1_CNT_MODE,
NITIO_G2_CNT_MODE,
NITIO_G3_CNT_MODE,
NITIO_G0_GATE2,
NITIO_G1_GATE2,
NITIO_G2_GATE2,
NITIO_G3_GATE2,
NITIO_G01_STATUS,
NITIO_G23_STATUS,
NITIO_G01_RESET,
NITIO_G23_RESET,
NITIO_G01_STATUS1,
NITIO_G23_STATUS1,
NITIO_G01_STATUS2,
NITIO_G23_STATUS2,
NITIO_G0_DMA_CFG,
NITIO_G1_DMA_CFG,
NITIO_G2_DMA_CFG,
NITIO_G3_DMA_CFG,
NITIO_G0_DMA_STATUS,
NITIO_G1_DMA_STATUS,
NITIO_G2_DMA_STATUS,
NITIO_G3_DMA_STATUS,
NITIO_G0_ABZ,
NITIO_G1_ABZ,
NITIO_G0_INT_ACK,
NITIO_G1_INT_ACK,
NITIO_G2_INT_ACK,
NITIO_G3_INT_ACK,
NITIO_G0_STATUS,
NITIO_G1_STATUS,
NITIO_G2_STATUS,
NITIO_G3_STATUS,
NITIO_G0_INT_ENA,
NITIO_G1_INT_ENA,
NITIO_G2_INT_ENA,
NITIO_G3_INT_ENA,
NITIO_NUM_REGS,
};
enum ni_gpct_variant {
ni_gpct_variant_e_series,
ni_gpct_variant_m_series,
ni_gpct_variant_660x
};
struct ni_gpct {
struct ni_gpct_device *counter_dev;
unsigned counter_index;
unsigned chip_index;
uint64_t clock_period_ps; /* clock period in picoseconds */
struct mite_channel *mite_chan;
spinlock_t lock;
};
struct ni_gpct_device {
struct comedi_device *dev;
void (*write_register)(struct ni_gpct *counter, unsigned bits,
enum ni_gpct_register reg);
unsigned (*read_register)(struct ni_gpct *counter,
enum ni_gpct_register reg);
enum ni_gpct_variant variant;
struct ni_gpct *counters;
unsigned num_counters;
unsigned regs[NITIO_NUM_REGS];
spinlock_t regs_lock;
};
struct ni_gpct_device *
ni_gpct_device_construct(struct comedi_device *,
void (*write_register)(struct ni_gpct *,
unsigned bits,
enum ni_gpct_register),
unsigned (*read_register)(struct ni_gpct *,
enum ni_gpct_register),
enum ni_gpct_variant,
unsigned num_counters);
void ni_gpct_device_destroy(struct ni_gpct_device *);
void ni_tio_init_counter(struct ni_gpct *);
int ni_tio_insn_read(struct comedi_device *, struct comedi_subdevice *,
struct comedi_insn *, unsigned int *data);
int ni_tio_insn_config(struct comedi_device *, struct comedi_subdevice *,
struct comedi_insn *, unsigned int *data);
int ni_tio_insn_write(struct comedi_device *, struct comedi_subdevice *,
struct comedi_insn *, unsigned int *data);
int ni_tio_cmd(struct comedi_device *, struct comedi_subdevice *);
int ni_tio_cmdtest(struct comedi_device *, struct comedi_subdevice *,
struct comedi_cmd *);
int ni_tio_cancel(struct ni_gpct *);
void ni_tio_handle_interrupt(struct ni_gpct *, struct comedi_subdevice *);
void ni_tio_set_mite_channel(struct ni_gpct *, struct mite_channel *);
void ni_tio_acknowledge(struct ni_gpct *);
#endif /* _COMEDI_NI_TIO_H */