diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_tio.h')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_tio.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/ni_tio.h b/drivers/staging/comedi/drivers/ni_tio.h new file mode 100644 index 000000000000..0729d60b01cc --- /dev/null +++ b/drivers/staging/comedi/drivers/ni_tio.h @@ -0,0 +1,163 @@ +/* + 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. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#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_Autoincrement_Reg, + NITIO_G1_Autoincrement_Reg, + NITIO_G2_Autoincrement_Reg, + NITIO_G3_Autoincrement_Reg, + NITIO_G0_Command_Reg, + NITIO_G1_Command_Reg, + NITIO_G2_Command_Reg, + NITIO_G3_Command_Reg, + NITIO_G0_HW_Save_Reg, + NITIO_G1_HW_Save_Reg, + NITIO_G2_HW_Save_Reg, + NITIO_G3_HW_Save_Reg, + NITIO_G0_SW_Save_Reg, + NITIO_G1_SW_Save_Reg, + NITIO_G2_SW_Save_Reg, + NITIO_G3_SW_Save_Reg, + NITIO_G0_Mode_Reg, + NITIO_G1_Mode_Reg, + NITIO_G2_Mode_Reg, + NITIO_G3_Mode_Reg, + NITIO_G0_LoadA_Reg, + NITIO_G1_LoadA_Reg, + NITIO_G2_LoadA_Reg, + NITIO_G3_LoadA_Reg, + NITIO_G0_LoadB_Reg, + NITIO_G1_LoadB_Reg, + NITIO_G2_LoadB_Reg, + NITIO_G3_LoadB_Reg, + NITIO_G0_Input_Select_Reg, + NITIO_G1_Input_Select_Reg, + NITIO_G2_Input_Select_Reg, + NITIO_G3_Input_Select_Reg, + NITIO_G0_Counting_Mode_Reg, + NITIO_G1_Counting_Mode_Reg, + NITIO_G2_Counting_Mode_Reg, + NITIO_G3_Counting_Mode_Reg, + NITIO_G0_Second_Gate_Reg, + NITIO_G1_Second_Gate_Reg, + NITIO_G2_Second_Gate_Reg, + NITIO_G3_Second_Gate_Reg, + NITIO_G01_Status_Reg, + NITIO_G23_Status_Reg, + NITIO_G01_Joint_Reset_Reg, + NITIO_G23_Joint_Reset_Reg, + NITIO_G01_Joint_Status1_Reg, + NITIO_G23_Joint_Status1_Reg, + NITIO_G01_Joint_Status2_Reg, + NITIO_G23_Joint_Status2_Reg, + NITIO_G0_DMA_Config_Reg, + NITIO_G1_DMA_Config_Reg, + NITIO_G2_DMA_Config_Reg, + NITIO_G3_DMA_Config_Reg, + NITIO_G0_DMA_Status_Reg, + NITIO_G1_DMA_Status_Reg, + NITIO_G2_DMA_Status_Reg, + NITIO_G3_DMA_Status_Reg, + NITIO_G0_ABZ_Reg, + NITIO_G1_ABZ_Reg, + NITIO_G0_Interrupt_Acknowledge_Reg, + NITIO_G1_Interrupt_Acknowledge_Reg, + NITIO_G2_Interrupt_Acknowledge_Reg, + NITIO_G3_Interrupt_Acknowledge_Reg, + NITIO_G0_Status_Reg, + NITIO_G1_Status_Reg, + NITIO_G2_Status_Reg, + NITIO_G3_Status_Reg, + NITIO_G0_Interrupt_Enable_Reg, + NITIO_G1_Interrupt_Enable_Reg, + NITIO_G2_Interrupt_Enable_Reg, + NITIO_G3_Interrupt_Enable_Reg, + NITIO_Num_Registers, +}; + +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_Registers]; + spinlock_t regs_lock; +}; + +extern struct ni_gpct_device *ni_gpct_device_construct(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, + unsigned num_counters); +extern void ni_gpct_device_destroy(struct ni_gpct_device *counter_dev); +extern void ni_tio_init_counter(struct ni_gpct *counter); +extern int ni_tio_rinsn(struct ni_gpct *counter, + struct comedi_insn * insn, unsigned int * data); +extern int ni_tio_insn_config(struct ni_gpct *counter, + struct comedi_insn * insn, unsigned int * data); +extern int ni_tio_winsn(struct ni_gpct *counter, + struct comedi_insn * insn, unsigned int * data); +extern int ni_tio_cmd(struct ni_gpct *counter, struct comedi_async *async); +extern int ni_tio_cmdtest(struct ni_gpct *counter, struct comedi_cmd * cmd); +extern int ni_tio_cancel(struct ni_gpct *counter); +extern void ni_tio_handle_interrupt(struct ni_gpct *counter, + struct comedi_subdevice * s); +extern void ni_tio_set_mite_channel(struct ni_gpct *counter, + struct mite_channel *mite_chan); +extern void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, + int *gate_error, int *tc_error, int *perm_stale_data, int *stale_data); + +static inline struct ni_gpct *subdev_to_counter(struct comedi_subdevice * s) +{ + return s->private; +} + +#endif /* _COMEDI_NI_TIO_H */ |