/* 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 */