2 comedi/drivers/ni_6527.c
3 driver for National Instruments PCI-6527
5 COMEDI - Linux Control and Measurement Device Interface
6 Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 Description: National Instruments 6527
28 Devices: [National Instruments] PCI-6527 (ni6527), PXI-6527
29 Updated: Sat, 25 Jan 2003 13:24:40 -0800
35 Manuals (available from ftp://ftp.natinst.com/support/manuals)
37 370106b.pdf 6527 Register Level Programmer Manual
44 #include "../comedidev.h"
48 #define NI6527_DIO_SIZE 4096
49 #define NI6527_MITE_SIZE 4096
51 #define Port_Register(x) (0x00+(x))
52 #define ID_Register 0x06
54 #define Clear_Register 0x07
56 #define ClrOverflow 0x04
57 #define ClrFilter 0x02
58 #define ClrInterval 0x01
60 #define Filter_Interval(x) (0x08+(x))
61 #define Filter_Enable(x) (0x0c+(x))
63 #define Change_Status 0x14
64 #define MasterInterruptStatus 0x04
66 #define EdgeStatus 0x01
68 #define Master_Interrupt_Control 0x15
69 #define FallingEdgeIntEnable 0x10
70 #define RisingEdgeIntEnable 0x08
71 #define MasterInterruptEnable 0x04
72 #define OverflowIntEnable 0x02
73 #define EdgeIntEnable 0x01
75 #define Rising_Edge_Detection_Enable(x) (0x018+(x))
76 #define Falling_Edge_Detection_Enable(x) (0x020+(x))
78 static int ni6527_attach(struct comedi_device
* dev
, comedi_devconfig
* it
);
79 static int ni6527_detach(struct comedi_device
* dev
);
80 static struct comedi_driver driver_ni6527
= {
91 static const ni6527_board ni6527_boards
[] = {
102 #define n_ni6527_boards (sizeof(ni6527_boards)/sizeof(ni6527_boards[0]))
103 #define this_board ((const ni6527_board *)dev->board_ptr)
105 static DEFINE_PCI_DEVICE_TABLE(ni6527_pci_table
) = {
106 {PCI_VENDOR_ID_NATINST
, 0x2b10, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
107 {PCI_VENDOR_ID_NATINST
, 0x2b20, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
111 MODULE_DEVICE_TABLE(pci
, ni6527_pci_table
);
114 struct mite_struct
*mite
;
115 unsigned int filter_interval
;
116 unsigned int filter_enable
;
118 #define devpriv ((ni6527_private *)dev->private)
120 static int ni6527_find_device(struct comedi_device
* dev
, int bus
, int slot
);
122 static int ni6527_di_insn_config(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
123 struct comedi_insn
* insn
, unsigned int * data
)
125 int chan
= CR_CHAN(insn
->chanspec
);
126 unsigned int interval
;
131 if (data
[0] != INSN_CONFIG_FILTER
)
135 interval
= (data
[1] + 100) / 200;
136 data
[1] = interval
* 200;
138 if (interval
!= devpriv
->filter_interval
) {
139 writeb(interval
& 0xff,
140 devpriv
->mite
->daq_io_addr
+
142 writeb((interval
>> 8) & 0xff,
143 devpriv
->mite
->daq_io_addr
+
145 writeb((interval
>> 16) & 0x0f,
146 devpriv
->mite
->daq_io_addr
+
150 devpriv
->mite
->daq_io_addr
+ Clear_Register
);
152 devpriv
->filter_interval
= interval
;
155 devpriv
->filter_enable
|= 1 << chan
;
157 devpriv
->filter_enable
&= ~(1 << chan
);
160 writeb(devpriv
->filter_enable
,
161 devpriv
->mite
->daq_io_addr
+ Filter_Enable(0));
162 writeb(devpriv
->filter_enable
>> 8,
163 devpriv
->mite
->daq_io_addr
+ Filter_Enable(1));
164 writeb(devpriv
->filter_enable
>> 16,
165 devpriv
->mite
->daq_io_addr
+ Filter_Enable(2));
170 static int ni6527_di_insn_bits(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
171 struct comedi_insn
* insn
, unsigned int * data
)
176 data
[1] = readb(devpriv
->mite
->daq_io_addr
+ Port_Register(0));
177 data
[1] |= readb(devpriv
->mite
->daq_io_addr
+ Port_Register(1)) << 8;
178 data
[1] |= readb(devpriv
->mite
->daq_io_addr
+ Port_Register(2)) << 16;
183 static int ni6527_do_insn_bits(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
184 struct comedi_insn
* insn
, unsigned int * data
)
189 s
->state
&= ~data
[0];
190 s
->state
|= (data
[0] & data
[1]);
192 /* The open relay state on the board cooresponds to 1,
193 * but in Comedi, it is represented by 0. */
194 if (data
[0] & 0x0000ff) {
195 writeb((s
->state
^ 0xff),
196 devpriv
->mite
->daq_io_addr
+ Port_Register(3));
198 if (data
[0] & 0x00ff00) {
199 writeb((s
->state
>> 8) ^ 0xff,
200 devpriv
->mite
->daq_io_addr
+ Port_Register(4));
202 if (data
[0] & 0xff0000) {
203 writeb((s
->state
>> 16) ^ 0xff,
204 devpriv
->mite
->daq_io_addr
+ Port_Register(5));
212 static irqreturn_t
ni6527_interrupt(int irq
, void *d PT_REGS_ARG
)
214 struct comedi_device
*dev
= d
;
215 struct comedi_subdevice
*s
= dev
->subdevices
+ 2;
218 status
= readb(devpriv
->mite
->daq_io_addr
+ Change_Status
);
219 if ((status
& MasterInterruptStatus
) == 0)
221 if ((status
& EdgeStatus
) == 0)
224 writeb(ClrEdge
| ClrOverflow
,
225 devpriv
->mite
->daq_io_addr
+ Clear_Register
);
227 comedi_buf_put(s
->async
, 0);
228 s
->async
->events
|= COMEDI_CB_EOS
;
229 comedi_event(dev
, s
);
233 static int ni6527_intr_cmdtest(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
234 struct comedi_cmd
* cmd
)
239 /* step 1: make sure trigger sources are trivially valid */
241 tmp
= cmd
->start_src
;
242 cmd
->start_src
&= TRIG_NOW
;
243 if (!cmd
->start_src
|| tmp
!= cmd
->start_src
)
246 tmp
= cmd
->scan_begin_src
;
247 cmd
->scan_begin_src
&= TRIG_OTHER
;
248 if (!cmd
->scan_begin_src
|| tmp
!= cmd
->scan_begin_src
)
251 tmp
= cmd
->convert_src
;
252 cmd
->convert_src
&= TRIG_FOLLOW
;
253 if (!cmd
->convert_src
|| tmp
!= cmd
->convert_src
)
256 tmp
= cmd
->scan_end_src
;
257 cmd
->scan_end_src
&= TRIG_COUNT
;
258 if (!cmd
->scan_end_src
|| tmp
!= cmd
->scan_end_src
)
262 cmd
->stop_src
&= TRIG_COUNT
;
263 if (!cmd
->stop_src
|| tmp
!= cmd
->stop_src
)
269 /* step 2: make sure trigger sources are unique and mutually compatible */
274 /* step 3: make sure arguments are trivially compatible */
276 if (cmd
->start_arg
!= 0) {
280 if (cmd
->scan_begin_arg
!= 0) {
281 cmd
->scan_begin_arg
= 0;
284 if (cmd
->convert_arg
!= 0) {
285 cmd
->convert_arg
= 0;
289 if (cmd
->scan_end_arg
!= 1) {
290 cmd
->scan_end_arg
= 1;
293 if (cmd
->stop_arg
!= 0) {
301 /* step 4: fix up any arguments */
309 static int ni6527_intr_cmd(struct comedi_device
* dev
, struct comedi_subdevice
* s
)
311 //struct comedi_cmd *cmd = &s->async->cmd;
313 writeb(ClrEdge
| ClrOverflow
,
314 devpriv
->mite
->daq_io_addr
+ Clear_Register
);
315 writeb(FallingEdgeIntEnable
| RisingEdgeIntEnable
|
316 MasterInterruptEnable
| EdgeIntEnable
,
317 devpriv
->mite
->daq_io_addr
+ Master_Interrupt_Control
);
322 static int ni6527_intr_cancel(struct comedi_device
* dev
, struct comedi_subdevice
* s
)
324 writeb(0x00, devpriv
->mite
->daq_io_addr
+ Master_Interrupt_Control
);
329 static int ni6527_intr_insn_bits(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
330 struct comedi_insn
* insn
, unsigned int * data
)
339 static int ni6527_intr_insn_config(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
340 struct comedi_insn
* insn
, unsigned int * data
)
344 if (data
[0] != INSN_CONFIG_CHANGE_NOTIFY
)
348 devpriv
->mite
->daq_io_addr
+ Rising_Edge_Detection_Enable(0));
350 devpriv
->mite
->daq_io_addr
+ Rising_Edge_Detection_Enable(1));
351 writeb(data
[1] >> 16,
352 devpriv
->mite
->daq_io_addr
+ Rising_Edge_Detection_Enable(2));
355 devpriv
->mite
->daq_io_addr
+ Falling_Edge_Detection_Enable(0));
357 devpriv
->mite
->daq_io_addr
+ Falling_Edge_Detection_Enable(1));
358 writeb(data
[2] >> 16,
359 devpriv
->mite
->daq_io_addr
+ Falling_Edge_Detection_Enable(2));
364 static int ni6527_attach(struct comedi_device
* dev
, comedi_devconfig
* it
)
366 struct comedi_subdevice
*s
;
369 printk("comedi%d: ni6527:", dev
->minor
);
371 if ((ret
= alloc_private(dev
, sizeof(ni6527_private
))) < 0)
374 ret
= ni6527_find_device(dev
, it
->options
[0], it
->options
[1]);
378 ret
= mite_setup(devpriv
->mite
);
380 printk("error setting up mite\n");
384 dev
->board_name
= this_board
->name
;
385 printk(" %s", dev
->board_name
);
387 printk(" ID=0x%02x", readb(devpriv
->mite
->daq_io_addr
+ ID_Register
));
389 if ((ret
= alloc_subdevices(dev
, 3)) < 0)
392 s
= dev
->subdevices
+ 0;
393 s
->type
= COMEDI_SUBD_DI
;
394 s
->subdev_flags
= SDF_READABLE
;
396 s
->range_table
= &range_digital
;
398 s
->insn_config
= ni6527_di_insn_config
;
399 s
->insn_bits
= ni6527_di_insn_bits
;
401 s
= dev
->subdevices
+ 1;
402 s
->type
= COMEDI_SUBD_DO
;
403 s
->subdev_flags
= SDF_READABLE
| SDF_WRITABLE
;
405 s
->range_table
= &range_unknown
; /* FIXME: actually conductance */
407 s
->insn_bits
= ni6527_do_insn_bits
;
409 s
= dev
->subdevices
+ 2;
410 dev
->read_subdev
= s
;
411 s
->type
= COMEDI_SUBD_DI
;
412 s
->subdev_flags
= SDF_READABLE
| SDF_CMD_READ
;
414 s
->range_table
= &range_unknown
;
416 s
->do_cmdtest
= ni6527_intr_cmdtest
;
417 s
->do_cmd
= ni6527_intr_cmd
;
418 s
->cancel
= ni6527_intr_cancel
;
419 s
->insn_bits
= ni6527_intr_insn_bits
;
420 s
->insn_config
= ni6527_intr_insn_config
;
422 writeb(0x00, devpriv
->mite
->daq_io_addr
+ Filter_Enable(0));
423 writeb(0x00, devpriv
->mite
->daq_io_addr
+ Filter_Enable(1));
424 writeb(0x00, devpriv
->mite
->daq_io_addr
+ Filter_Enable(2));
426 writeb(ClrEdge
| ClrOverflow
| ClrFilter
| ClrInterval
,
427 devpriv
->mite
->daq_io_addr
+ Clear_Register
);
428 writeb(0x00, devpriv
->mite
->daq_io_addr
+ Master_Interrupt_Control
);
430 ret
= comedi_request_irq(mite_irq(devpriv
->mite
), ni6527_interrupt
,
431 IRQF_SHARED
, "ni6527", dev
);
433 printk(" irq not available");
435 dev
->irq
= mite_irq(devpriv
->mite
);
442 static int ni6527_detach(struct comedi_device
* dev
)
444 if (devpriv
&& devpriv
->mite
&& devpriv
->mite
->daq_io_addr
) {
446 devpriv
->mite
->daq_io_addr
+ Master_Interrupt_Control
);
450 comedi_free_irq(dev
->irq
, dev
);
453 if (devpriv
&& devpriv
->mite
) {
454 mite_unsetup(devpriv
->mite
);
460 static int ni6527_find_device(struct comedi_device
* dev
, int bus
, int slot
)
462 struct mite_struct
*mite
;
465 for (mite
= mite_devices
; mite
; mite
= mite
->next
) {
469 if (bus
!= mite
->pcidev
->bus
->number
||
470 slot
!= PCI_SLOT(mite
->pcidev
->devfn
))
473 for (i
= 0; i
< n_ni6527_boards
; i
++) {
474 if (mite_device_id(mite
) == ni6527_boards
[i
].dev_id
) {
475 dev
->board_ptr
= ni6527_boards
+ i
;
476 devpriv
->mite
= mite
;
481 printk("no device found\n");
486 COMEDI_PCI_INITCLEANUP(driver_ni6527
, ni6527_pci_table
);