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.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #ifndef _COMEDI_NI_TIO_H
24 #define _COMEDI_NI_TIO_H
26 #include "../comedidev.h"
28 /* forward declarations */
30 struct ni_gpct_device
;
32 enum ni_gpct_register
{
33 NITIO_G0_Autoincrement_Reg
,
34 NITIO_G1_Autoincrement_Reg
,
35 NITIO_G2_Autoincrement_Reg
,
36 NITIO_G3_Autoincrement_Reg
,
61 NITIO_G0_Input_Select_Reg
,
62 NITIO_G1_Input_Select_Reg
,
63 NITIO_G2_Input_Select_Reg
,
64 NITIO_G3_Input_Select_Reg
,
65 NITIO_G0_Counting_Mode_Reg
,
66 NITIO_G1_Counting_Mode_Reg
,
67 NITIO_G2_Counting_Mode_Reg
,
68 NITIO_G3_Counting_Mode_Reg
,
69 NITIO_G0_Second_Gate_Reg
,
70 NITIO_G1_Second_Gate_Reg
,
71 NITIO_G2_Second_Gate_Reg
,
72 NITIO_G3_Second_Gate_Reg
,
75 NITIO_G01_Joint_Reset_Reg
,
76 NITIO_G23_Joint_Reset_Reg
,
77 NITIO_G01_Joint_Status1_Reg
,
78 NITIO_G23_Joint_Status1_Reg
,
79 NITIO_G01_Joint_Status2_Reg
,
80 NITIO_G23_Joint_Status2_Reg
,
81 NITIO_G0_DMA_Config_Reg
,
82 NITIO_G1_DMA_Config_Reg
,
83 NITIO_G2_DMA_Config_Reg
,
84 NITIO_G3_DMA_Config_Reg
,
85 NITIO_G0_DMA_Status_Reg
,
86 NITIO_G1_DMA_Status_Reg
,
87 NITIO_G2_DMA_Status_Reg
,
88 NITIO_G3_DMA_Status_Reg
,
91 NITIO_G0_Interrupt_Acknowledge_Reg
,
92 NITIO_G1_Interrupt_Acknowledge_Reg
,
93 NITIO_G2_Interrupt_Acknowledge_Reg
,
94 NITIO_G3_Interrupt_Acknowledge_Reg
,
99 NITIO_G0_Interrupt_Enable_Reg
,
100 NITIO_G1_Interrupt_Enable_Reg
,
101 NITIO_G2_Interrupt_Enable_Reg
,
102 NITIO_G3_Interrupt_Enable_Reg
,
106 enum ni_gpct_variant
{
107 ni_gpct_variant_e_series
,
108 ni_gpct_variant_m_series
,
113 struct ni_gpct_device
*counter_dev
;
114 unsigned counter_index
;
116 uint64_t clock_period_ps
; /* clock period in picoseconds */
117 struct mite_channel
*mite_chan
;
121 struct ni_gpct_device
{
122 struct comedi_device
*dev
;
123 void (*write_register
) (struct ni_gpct
* counter
, unsigned bits
,
124 enum ni_gpct_register reg
);
125 unsigned (*read_register
) (struct ni_gpct
* counter
,
126 enum ni_gpct_register reg
);
127 enum ni_gpct_variant variant
;
128 struct ni_gpct
*counters
;
129 unsigned num_counters
;
130 unsigned regs
[NITIO_Num_Registers
];
131 spinlock_t regs_lock
;
134 extern struct ni_gpct_device
*ni_gpct_device_construct(struct comedi_device
136 void (*write_register
)
138 counter
, unsigned bits
,
139 enum ni_gpct_register
141 unsigned (*read_register
)
144 enum ni_gpct_register
148 unsigned num_counters
);
149 extern void ni_gpct_device_destroy(struct ni_gpct_device
*counter_dev
);
150 extern void ni_tio_init_counter(struct ni_gpct
*counter
);
151 extern int ni_tio_rinsn(struct ni_gpct
*counter
,
152 struct comedi_insn
*insn
, unsigned int *data
);
153 extern int ni_tio_insn_config(struct ni_gpct
*counter
,
154 struct comedi_insn
*insn
, unsigned int *data
);
155 extern int ni_tio_winsn(struct ni_gpct
*counter
,
156 struct comedi_insn
*insn
, unsigned int *data
);
157 extern int ni_tio_cmd(struct ni_gpct
*counter
, struct comedi_async
*async
);
158 extern int ni_tio_cmdtest(struct ni_gpct
*counter
, struct comedi_cmd
*cmd
);
159 extern int ni_tio_cancel(struct ni_gpct
*counter
);
160 extern void ni_tio_handle_interrupt(struct ni_gpct
*counter
,
161 struct comedi_subdevice
*s
);
162 extern void ni_tio_set_mite_channel(struct ni_gpct
*counter
,
163 struct mite_channel
*mite_chan
);
164 extern void ni_tio_acknowledge_and_confirm(struct ni_gpct
*counter
,
165 int *gate_error
, int *tc_error
,
166 int *perm_stale_data
,
169 static inline struct ni_gpct
*subdev_to_counter(struct comedi_subdevice
*s
)
174 #endif /* _COMEDI_NI_TIO_H */