3 Header file for NI general purpose counter support code (ni_tio.c)
5 COMEDI - Linux Control and Measurement Device Interface
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
18 #ifndef _COMEDI_NI_TIO_H
19 #define _COMEDI_NI_TIO_H
21 #include "../comedidev.h"
23 /* forward declarations */
25 struct ni_gpct_device;
27 enum ni_gpct_register {
28 NITIO_G0_Autoincrement_Reg,
29 NITIO_G1_Autoincrement_Reg,
30 NITIO_G2_Autoincrement_Reg,
31 NITIO_G3_Autoincrement_Reg,
56 NITIO_G0_Input_Select_Reg,
57 NITIO_G1_Input_Select_Reg,
58 NITIO_G2_Input_Select_Reg,
59 NITIO_G3_Input_Select_Reg,
60 NITIO_G0_Counting_Mode_Reg,
61 NITIO_G1_Counting_Mode_Reg,
62 NITIO_G2_Counting_Mode_Reg,
63 NITIO_G3_Counting_Mode_Reg,
64 NITIO_G0_Second_Gate_Reg,
65 NITIO_G1_Second_Gate_Reg,
66 NITIO_G2_Second_Gate_Reg,
67 NITIO_G3_Second_Gate_Reg,
70 NITIO_G01_Joint_Reset_Reg,
71 NITIO_G23_Joint_Reset_Reg,
72 NITIO_G01_Joint_Status1_Reg,
73 NITIO_G23_Joint_Status1_Reg,
74 NITIO_G01_Joint_Status2_Reg,
75 NITIO_G23_Joint_Status2_Reg,
76 NITIO_G0_DMA_Config_Reg,
77 NITIO_G1_DMA_Config_Reg,
78 NITIO_G2_DMA_Config_Reg,
79 NITIO_G3_DMA_Config_Reg,
80 NITIO_G0_DMA_Status_Reg,
81 NITIO_G1_DMA_Status_Reg,
82 NITIO_G2_DMA_Status_Reg,
83 NITIO_G3_DMA_Status_Reg,
86 NITIO_G0_Interrupt_Acknowledge_Reg,
87 NITIO_G1_Interrupt_Acknowledge_Reg,
88 NITIO_G2_Interrupt_Acknowledge_Reg,
89 NITIO_G3_Interrupt_Acknowledge_Reg,
94 NITIO_G0_Interrupt_Enable_Reg,
95 NITIO_G1_Interrupt_Enable_Reg,
96 NITIO_G2_Interrupt_Enable_Reg,
97 NITIO_G3_Interrupt_Enable_Reg,
101 enum ni_gpct_variant {
102 ni_gpct_variant_e_series,
103 ni_gpct_variant_m_series,
108 struct ni_gpct_device *counter_dev;
109 unsigned counter_index;
111 uint64_t clock_period_ps; /* clock period in picoseconds */
112 struct mite_channel *mite_chan;
116 struct ni_gpct_device {
117 struct comedi_device *dev;
118 void (*write_register) (struct ni_gpct *counter, unsigned bits,
119 enum ni_gpct_register reg);
120 unsigned (*read_register) (struct ni_gpct *counter,
121 enum ni_gpct_register reg);
122 enum ni_gpct_variant variant;
123 struct ni_gpct *counters;
124 unsigned num_counters;
125 unsigned regs[NITIO_Num_Registers];
126 spinlock_t regs_lock;
129 extern struct ni_gpct_device *ni_gpct_device_construct(struct comedi_device
131 void (*write_register)
133 counter, unsigned bits,
134 enum ni_gpct_register
136 unsigned (*read_register)
139 enum ni_gpct_register
143 unsigned num_counters);
144 extern void ni_gpct_device_destroy(struct ni_gpct_device *counter_dev);
145 extern void ni_tio_init_counter(struct ni_gpct *counter);
146 extern int ni_tio_rinsn(struct ni_gpct *counter,
147 struct comedi_insn *insn, unsigned int *data);
148 extern int ni_tio_insn_config(struct ni_gpct *counter,
149 struct comedi_insn *insn, unsigned int *data);
150 extern int ni_tio_winsn(struct ni_gpct *counter,
151 struct comedi_insn *insn, unsigned int *data);
152 extern int ni_tio_cmd(struct ni_gpct *counter, struct comedi_async *async);
153 extern int ni_tio_cmdtest(struct ni_gpct *counter, struct comedi_cmd *cmd);
154 extern int ni_tio_cancel(struct ni_gpct *counter);
155 extern void ni_tio_handle_interrupt(struct ni_gpct *counter,
156 struct comedi_subdevice *s);
157 extern void ni_tio_set_mite_channel(struct ni_gpct *counter,
158 struct mite_channel *mite_chan);
159 extern void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter,
160 int *gate_error, int *tc_error,
161 int *perm_stale_data,
164 static inline struct ni_gpct *subdev_to_counter(struct comedi_subdevice *s)
169 #endif /* _COMEDI_NI_TIO_H */