2 comedi/drivers/ni_pcidio.c
3 driver for National Instruments PCI-DIO-96/PCI-6508
4 National Instruments PCI-DIO-32HS
5 National Instruments PCI-6503
7 COMEDI - Linux Control and Measurement Device Interface
8 Copyright (C) 1999,2002 David A. Schleef <ds@schleef.org>
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 Description: National Instruments PCI-DIO32HS, PCI-DIO96, PCI-6533, PCI-6503
30 Devices: [National Instruments] PCI-DIO-32HS (ni_pcidio), PXI-6533,
31 PCI-DIO-96, PCI-DIO-96B, PXI-6508, PCI-6503, PCI-6503B, PCI-6503X,
32 PXI-6503, PCI-6533, PCI-6534
33 Updated: Sun, 21 Apr 2002 21:03:38 -0700
35 The DIO-96 appears as four 8255 subdevices. See the 8255
36 driver notes for details.
38 The DIO32HS board appears as one subdevice, with 32 channels.
39 Each channel is individually I/O configurable. The channel order
40 is 0=A0, 1=A1, 2=A2, ... 8=B0, 16=C0, 24=D0. The driver only
41 supports simple digital I/O; no handshaking is supported.
43 DMA mostly works for the PCI-DIO32HS, but only in timed input mode.
45 This driver could be easily modified to support AT-MIO32HS and
48 The PCI-6534 requires a firmware upload after power-up to work, the
49 firmware data and instructions for loading it with comedi_config
50 it are contained in the
51 comedi_nonfree_firmware tarball available from http://www.comedi.org
55 This driver is for both the NI PCI-DIO-32HS and the PCI-DIO-96,
56 which have very different architectures. But, since the '96 is
57 so simple, it is included here.
59 Manuals (available from ftp://ftp.natinst.com/support/manuals)
61 320938c.pdf PCI-DIO-96/PXI-6508/PCI-6503 User Manual
62 321464b.pdf AT/PCI-DIO-32HS User Manual
63 341329A.pdf PCI-6533 Register-Level Programmer Manual
64 341330A.pdf DAQ-DIO Technical Reference Manual
72 #include "../comedidev.h"
79 #define DPRINTK(format, args...) printk(format, ## args)
81 #define DPRINTK(format, args...)
84 #define PCI_VENDOR_ID_NATINST 0x1093
86 #define PCI_DIO_SIZE 4096
87 #define PCI_MITE_SIZE 4096
89 /* defines for the PCI-DIO-96 */
91 #define NIDIO_8255_BASE(x) ((x)*4)
97 /* defines for the PCI-DIO-32HS */
99 #define Window_Address 4 /* W */
100 #define Interrupt_And_Window_Status 4 /* R */
101 #define IntStatus1 (1<<0)
102 #define IntStatus2 (1<<1)
103 #define WindowAddressStatus_mask 0x7c
105 #define Master_DMA_And_Interrupt_Control 5 /* W */
106 #define InterruptLine(x) ((x)&3)
107 #define OpenInt (1<<2)
108 #define Group_Status 5 /* R */
109 #define DataLeft (1<<0)
111 #define StopTrig (1<<3)
113 #define Group_1_Flags 6 /* R */
114 #define Group_2_Flags 7 /* R */
115 #define TransferReady (1<<0)
116 #define CountExpired (1<<1)
117 #define Waited (1<<5)
118 #define PrimaryTC (1<<6)
119 #define SecondaryTC (1<<7)
124 #define Group_1_First_Clear 6 /* W */
125 #define Group_2_First_Clear 7 /* W */
126 #define ClearWaited (1<<3)
127 #define ClearPrimaryTC (1<<4)
128 #define ClearSecondaryTC (1<<5)
129 #define DMAReset (1<<6)
130 #define FIFOReset (1<<7)
131 #define ClearAll 0xf8
133 #define Group_1_FIFO 8 /* W */
134 #define Group_2_FIFO 12 /* W */
136 #define Transfer_Count 20
140 #define Chip_Version 27
141 #define Port_IO(x) (28+(x))
142 #define Port_Pin_Directions(x) (32+(x))
143 #define Port_Pin_Mask(x) (36+(x))
144 #define Port_Pin_Polarities(x) (40+(x))
146 #define Master_Clock_Routing 45
147 #define RTSIClocking(x) (((x)&3)<<4)
149 #define Group_1_Second_Clear 46 /* W */
150 #define Group_2_Second_Clear 47 /* W */
151 #define ClearExpired (1<<0)
153 #define Port_Pattern(x) (48+(x))
156 #define FIFOEnableA (1<<0)
157 #define FIFOEnableB (1<<1)
158 #define FIFOEnableC (1<<2)
159 #define FIFOEnableD (1<<3)
160 #define Funneling(x) (((x)&3)<<4)
161 #define GroupDirection (1<<7)
163 #define Protocol_Register_1 65
164 #define OpMode Protocol_Register_1
165 #define RunMode(x) ((x)&7)
166 #define Numbered (1<<3)
168 #define Protocol_Register_2 66
169 #define ClockReg Protocol_Register_2
170 #define ClockLine(x) (((x)&3)<<5)
171 #define InvertStopTrig (1<<7)
172 #define DataLatching(x) (((x)&3)<<5)
174 #define Protocol_Register_3 67
175 #define Sequence Protocol_Register_3
177 #define Protocol_Register_14 68 /* 16 bit */
178 #define ClockSpeed Protocol_Register_14
180 #define Protocol_Register_4 70
181 #define ReqReg Protocol_Register_4
182 #define ReqConditioning(x) (((x)&7)<<3)
184 #define Protocol_Register_5 71
185 #define BlockMode Protocol_Register_5
187 #define FIFO_Control 72
188 #define ReadyLevel(x) ((x)&7)
190 #define Protocol_Register_6 73
191 #define LinePolarities Protocol_Register_6
192 #define InvertAck (1<<0)
193 #define InvertReq (1<<1)
194 #define InvertClock (1<<2)
195 #define InvertSerial (1<<3)
196 #define OpenAck (1<<4)
197 #define OpenClock (1<<5)
199 #define Protocol_Register_7 74
200 #define AckSer Protocol_Register_7
201 #define AckLine(x) (((x)&3)<<2)
202 #define ExchangePins (1<<7)
204 #define Interrupt_Control 75
205 /* bits same as flags */
207 #define DMA_Line_Control_Group1 76
208 #define DMA_Line_Control_Group2 108
209 // channel zero is none
210 static inline unsigned primary_DMAChannel_bits(unsigned channel
)
212 return channel
& 0x3;
214 static inline unsigned secondary_DMAChannel_bits(unsigned channel
)
216 return (channel
<< 2) & 0xc;
219 #define Transfer_Size_Control 77
220 #define TransferWidth(x) ((x)&3)
221 #define TransferLength(x) (((x)&3)<<3)
222 #define RequireRLevel (1<<5)
224 #define Protocol_Register_15 79
225 #define DAQOptions Protocol_Register_15
226 #define StartSource(x) ((x)&0x3)
227 #define InvertStart (1<<2)
228 #define StopSource(x) (((x)&0x3)<<3)
229 #define ReqStart (1<<6)
230 #define PreStart (1<<7)
232 #define Pattern_Detection 81
233 #define DetectionMethod (1<<0)
234 #define InvertMatch (1<<1)
235 #define IE_Pattern_Detection (1<<2)
237 #define Protocol_Register_9 82
238 #define ReqDelay Protocol_Register_9
240 #define Protocol_Register_10 83
241 #define ReqNotDelay Protocol_Register_10
243 #define Protocol_Register_11 84
244 #define AckDelay Protocol_Register_11
246 #define Protocol_Register_12 85
247 #define AckNotDelay Protocol_Register_12
249 #define Protocol_Register_13 86
250 #define Data1Delay Protocol_Register_13
252 #define Protocol_Register_8 88 /* 32 bit */
253 #define StartDelay Protocol_Register_8
255 enum pci_6534_firmware_registers
{ /* 16 bit */
256 Firmware_Control_Register
= 0x100,
257 Firmware_Status_Register
= 0x104,
258 Firmware_Data_Register
= 0x108,
259 Firmware_Mask_Register
= 0x10c,
260 Firmware_Debug_Register
= 0x110,
262 /* main fpga registers (32 bit)*/
263 enum pci_6534_fpga_registers
{
264 FPGA_Control1_Register
= 0x200,
265 FPGA_Control2_Register
= 0x204,
266 FPGA_Irq_Mask_Register
= 0x208,
267 FPGA_Status_Register
= 0x20c,
268 FPGA_Signature_Register
= 0x210,
269 FPGA_SCALS_Counter_Register
= 0x280, /*write-clear */
270 FPGA_SCAMS_Counter_Register
= 0x284, /*write-clear */
271 FPGA_SCBLS_Counter_Register
= 0x288, /*write-clear */
272 FPGA_SCBMS_Counter_Register
= 0x28c, /*write-clear */
273 FPGA_Temp_Control_Register
= 0x2a0,
274 FPGA_DAR_Register
= 0x2a8,
275 FPGA_ELC_Read_Register
= 0x2b8,
276 FPGA_ELC_Write_Register
= 0x2bc,
278 enum FPGA_Control_Bits
{
279 FPGA_Enable_Bit
= 0x8000,
282 #define TIMER_BASE 50 /* nanoseconds */
285 #define IntEn (CountExpired|Waited|PrimaryTC|SecondaryTC)
287 #define IntEn (TransferReady|CountExpired|Waited|PrimaryTC|SecondaryTC)
290 static int nidio_attach(struct comedi_device
*dev
, struct comedi_devconfig
*it
);
291 static int nidio_detach(struct comedi_device
*dev
);
292 static int ni_pcidio_cancel(struct comedi_device
*dev
, struct comedi_subdevice
*s
);
294 static struct comedi_driver driver_pcidio
= {
295 driver_name
:"ni_pcidio",
306 unsigned int is_diodaq
:1;
307 unsigned int uses_firmware
:1;
310 static const struct nidio_board nidio_boards
[] = {
313 name
: "pci-dio-32hs",
374 #define n_nidio_boards (sizeof(nidio_boards)/sizeof(nidio_boards[0]))
375 #define this_board ((const struct nidio_board *)dev->board_ptr)
377 static DEFINE_PCI_DEVICE_TABLE(ni_pcidio_pci_table
) = {
378 {PCI_VENDOR_ID_NATINST
, 0x1150, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
379 {PCI_VENDOR_ID_NATINST
, 0x1320, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
380 {PCI_VENDOR_ID_NATINST
, 0x12b0, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
381 {PCI_VENDOR_ID_NATINST
, 0x0160, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
382 {PCI_VENDOR_ID_NATINST
, 0x1630, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
383 {PCI_VENDOR_ID_NATINST
, 0x13c0, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
384 {PCI_VENDOR_ID_NATINST
, 0x0400, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
385 {PCI_VENDOR_ID_NATINST
, 0x1250, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
386 {PCI_VENDOR_ID_NATINST
, 0x17d0, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
387 {PCI_VENDOR_ID_NATINST
, 0x1800, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
391 MODULE_DEVICE_TABLE(pci
, ni_pcidio_pci_table
);
393 struct nidio96_private
{
394 struct mite_struct
*mite
;
397 unsigned short OpModeBits
;
398 struct mite_channel
*di_mite_chan
;
399 struct mite_dma_descriptor_ring
*di_mite_ring
;
400 spinlock_t mite_channel_lock
;
402 #define devpriv ((struct nidio96_private *)dev->private)
404 static int ni_pcidio_cmdtest(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
405 struct comedi_cmd
*cmd
);
406 static int ni_pcidio_cmd(struct comedi_device
*dev
, struct comedi_subdevice
*s
);
407 static int ni_pcidio_inttrig(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
408 unsigned int trignum
);
409 static int nidio_find_device(struct comedi_device
*dev
, int bus
, int slot
);
410 static int ni_pcidio_ns_to_timer(int *nanosec
, int round_mode
);
411 static int setup_mite_dma(struct comedi_device
*dev
, struct comedi_subdevice
*s
);
414 static void ni_pcidio_print_flags(unsigned int flags
);
415 static void ni_pcidio_print_status(unsigned int status
);
417 #define ni_pcidio_print_flags(x)
418 #define ni_pcidio_print_status(x)
421 static int ni_pcidio_request_di_mite_channel(struct comedi_device
*dev
)
425 comedi_spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
426 BUG_ON(devpriv
->di_mite_chan
);
427 devpriv
->di_mite_chan
=
428 mite_request_channel_in_range(devpriv
->mite
,
429 devpriv
->di_mite_ring
, 1, 2);
430 if (devpriv
->di_mite_chan
== NULL
) {
431 comedi_spin_unlock_irqrestore(&devpriv
->mite_channel_lock
,
433 comedi_error(dev
, "failed to reserve mite dma channel.");
436 writeb(primary_DMAChannel_bits(devpriv
->di_mite_chan
->channel
) |
437 secondary_DMAChannel_bits(devpriv
->di_mite_chan
->channel
),
438 devpriv
->mite
->daq_io_addr
+ DMA_Line_Control_Group1
);
440 comedi_spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
444 static void ni_pcidio_release_di_mite_channel(struct comedi_device
*dev
)
448 comedi_spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
449 if (devpriv
->di_mite_chan
) {
450 mite_dma_disarm(devpriv
->di_mite_chan
);
451 mite_dma_reset(devpriv
->di_mite_chan
);
452 mite_release_channel(devpriv
->di_mite_chan
);
453 devpriv
->di_mite_chan
= NULL
;
454 writeb(primary_DMAChannel_bits(0) |
455 secondary_DMAChannel_bits(0),
456 devpriv
->mite
->daq_io_addr
+ DMA_Line_Control_Group1
);
459 comedi_spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
462 static int nidio96_8255_cb(int dir
, int port
, int data
, unsigned long iobase
)
465 writeb(data
, (void *)(iobase
+ port
));
468 return readb((void *)(iobase
+ port
));
472 void ni_pcidio_event(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
475 events
& (COMEDI_CB_EOA
| COMEDI_CB_ERROR
| COMEDI_CB_OVERFLOW
))
477 ni_pcidio_cancel(dev
, s
);
479 comedi_event(dev
, s
);
482 static irqreturn_t
nidio_interrupt(int irq
, void *d
)
484 struct comedi_device
*dev
= d
;
485 struct comedi_subdevice
*s
= dev
->subdevices
;
486 struct comedi_async
*async
= s
->async
;
487 struct mite_struct
*mite
= devpriv
->mite
;
490 long int AuxData
= 0;
496 unsigned int m_status
= 0;
497 unsigned long irq_flags
;
499 //interrupcions parasites
500 if (dev
->attached
== 0) {
501 // assume it's from another card
505 status
= readb(devpriv
->mite
->daq_io_addr
+
506 Interrupt_And_Window_Status
);
507 flags
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
509 DPRINTK("ni_pcidio_interrupt: status=0x%02x,flags=0x%02x\n",
511 ni_pcidio_print_flags(flags
);
512 ni_pcidio_print_status(status
);
514 //printk("buf[0]=%08x\n",*(unsigned int *)async->prealloc_buf);
515 //printk("buf[4096]=%08x\n",*(unsigned int *)(async->prealloc_buf+4096));
517 comedi_spin_lock_irqsave(&devpriv
->mite_channel_lock
, irq_flags
);
518 if (devpriv
->di_mite_chan
)
519 m_status
= mite_get_status(devpriv
->di_mite_chan
);
521 mite_print_chsr(m_status
);
523 //printk("mite_bytes_transferred: %d\n",mite_bytes_transferred(mite,DI_DMA_CHAN));
524 //mite_dump_regs(mite);
525 if (m_status
& CHSR_INT
) {
526 if (m_status
& CHSR_LINKC
) {
529 MITE_CHOR(devpriv
->di_mite_chan
->channel
));
530 mite_sync_input_dma(devpriv
->di_mite_chan
, s
->async
);
531 /* XXX need to byteswap */
533 if (m_status
& ~(CHSR_INT
| CHSR_LINKC
| CHSR_DONE
| CHSR_DRDY
|
534 CHSR_DRQ1
| CHSR_MRDY
)) {
535 DPRINTK("unknown mite interrupt, disabling IRQ\n");
536 async
->events
|= COMEDI_CB_EOA
| COMEDI_CB_ERROR
;
537 disable_irq(dev
->irq
);
540 comedi_spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, irq_flags
);
542 while (status
& DataLeft
) {
545 DPRINTK("too much work in interrupt\n");
547 devpriv
->mite
->daq_io_addr
+
548 Master_DMA_And_Interrupt_Control
);
554 if (flags
& TransferReady
) {
555 //DPRINTK("TransferReady\n");
556 while (flags
& TransferReady
) {
559 DPRINTK("too much work in interrupt\n");
561 devpriv
->mite
->daq_io_addr
+
562 Master_DMA_And_Interrupt_Control
);
566 readl(devpriv
->mite
->daq_io_addr
+
568 data1
= AuxData
& 0xffff;
569 data2
= (AuxData
& 0xffff0000) >> 16;
570 comedi_buf_put(async
, data1
);
571 comedi_buf_put(async
, data2
);
572 //DPRINTK("read:%d, %d\n",data1,data2);
573 flags
= readb(devpriv
->mite
->daq_io_addr
+
576 //DPRINTK("buf_int_count: %d\n",async->buf_int_count);
577 //DPRINTK("1) IntEn=%d,flags=%d,status=%d\n",IntEn,flags,status);
578 //ni_pcidio_print_flags(flags);
579 //ni_pcidio_print_status(status);
580 async
->events
|= COMEDI_CB_BLOCK
;
583 if (flags
& CountExpired
) {
584 DPRINTK("CountExpired\n");
586 devpriv
->mite
->daq_io_addr
+
587 Group_1_Second_Clear
);
588 async
->events
|= COMEDI_CB_EOA
;
590 writeb(0x00, devpriv
->mite
->daq_io_addr
+ OpMode
);
592 } else if (flags
& Waited
) {
595 devpriv
->mite
->daq_io_addr
+
596 Group_1_First_Clear
);
597 async
->events
|= COMEDI_CB_EOA
| COMEDI_CB_ERROR
;
599 } else if (flags
& PrimaryTC
) {
600 DPRINTK("PrimaryTC\n");
601 writeb(ClearPrimaryTC
,
602 devpriv
->mite
->daq_io_addr
+
603 Group_1_First_Clear
);
604 async
->events
|= COMEDI_CB_EOA
;
605 } else if (flags
& SecondaryTC
) {
606 DPRINTK("SecondaryTC\n");
607 writeb(ClearSecondaryTC
,
608 devpriv
->mite
->daq_io_addr
+
609 Group_1_First_Clear
);
610 async
->events
|= COMEDI_CB_EOA
;
614 printk("ni_pcidio: unknown interrupt\n");
615 async
->events
|= COMEDI_CB_ERROR
| COMEDI_CB_EOA
;
617 devpriv
->mite
->daq_io_addr
+
618 Master_DMA_And_Interrupt_Control
);
621 flags
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
622 status
= readb(devpriv
->mite
->daq_io_addr
+
623 Interrupt_And_Window_Status
);
624 //DPRINTK("loop end: IntEn=0x%02x,flags=0x%02x,status=0x%02x\n",
625 // IntEn,flags,status);
626 //ni_pcidio_print_flags(flags);
627 //ni_pcidio_print_status(status);
631 ni_pcidio_event(dev
, s
);
635 devpriv
->mite
->daq_io_addr
+
636 Master_DMA_And_Interrupt_Control
);
643 static const char *const flags_strings
[] = {
644 "TransferReady", "CountExpired", "2", "3",
645 "4", "Waited", "PrimaryTC", "SecondaryTC",
647 static void ni_pcidio_print_flags(unsigned int flags
)
651 printk("group_1_flags:");
652 for (i
= 7; i
>= 0; i
--) {
653 if (flags
& (1 << i
)) {
654 printk(" %s", flags_strings
[i
]);
659 static char *status_strings
[] = {
660 "DataLeft1", "Reserved1", "Req1", "StopTrig1",
661 "DataLeft2", "Reserved2", "Req2", "StopTrig2",
663 static void ni_pcidio_print_status(unsigned int flags
)
667 printk("group_status:");
668 for (i
= 7; i
>= 0; i
--) {
669 if (flags
& (1 << i
)) {
670 printk(" %s", status_strings
[i
]);
678 static void debug_int(struct comedi_device
* dev
)
681 static int n_int
= 0;
684 do_gettimeofday(&tv
);
685 a
= readb(devpriv
->mite
->daq_io_addr
+ Group_Status
);
686 b
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
689 DPRINTK("status 0x%02x flags 0x%02x time %06d\n", a
, b
,
694 writew(0xff, devpriv
->mite
->daq_io_addr
+ Group_1_FIFO
);
695 b
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
698 b
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
701 DPRINTK("new status 0x%02x\n", b
);
707 static int ni_pcidio_insn_config(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
708 struct comedi_insn
* insn
, unsigned int * data
)
713 case INSN_CONFIG_DIO_OUTPUT
:
714 s
->io_bits
|= 1 << CR_CHAN(insn
->chanspec
);
716 case INSN_CONFIG_DIO_INPUT
:
717 s
->io_bits
&= ~(1 << CR_CHAN(insn
->chanspec
));
719 case INSN_CONFIG_DIO_QUERY
:
721 (s
->io_bits
& (1 << CR_CHAN(insn
->
722 chanspec
))) ? COMEDI_OUTPUT
:
729 writel(s
->io_bits
, devpriv
->mite
->daq_io_addr
+ Port_Pin_Directions(0));
734 static int ni_pcidio_insn_bits(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
735 struct comedi_insn
* insn
, unsigned int * data
)
740 s
->state
&= ~data
[0];
741 s
->state
|= (data
[0] & data
[1]);
742 writel(s
->state
, devpriv
->mite
->daq_io_addr
+ Port_IO(0));
744 data
[1] = readl(devpriv
->mite
->daq_io_addr
+ Port_IO(0));
749 static int ni_pcidio_cmdtest(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
750 struct comedi_cmd
* cmd
)
755 /* step 1: make sure trigger sources are trivially valid */
757 tmp
= cmd
->start_src
;
758 cmd
->start_src
&= TRIG_NOW
| TRIG_INT
;
759 if (!cmd
->start_src
|| tmp
!= cmd
->start_src
)
762 tmp
= cmd
->scan_begin_src
;
763 cmd
->scan_begin_src
&= TRIG_TIMER
| TRIG_EXT
;
764 if (!cmd
->scan_begin_src
|| tmp
!= cmd
->scan_begin_src
)
767 tmp
= cmd
->convert_src
;
768 cmd
->convert_src
&= TRIG_NOW
;
769 if (!cmd
->convert_src
|| tmp
!= cmd
->convert_src
)
772 tmp
= cmd
->scan_end_src
;
773 cmd
->scan_end_src
&= TRIG_COUNT
;
774 if (!cmd
->scan_end_src
|| tmp
!= cmd
->scan_end_src
)
778 cmd
->stop_src
&= TRIG_COUNT
| TRIG_NONE
;
779 if (!cmd
->stop_src
|| tmp
!= cmd
->stop_src
)
785 /* step 2: make sure trigger sources are unique and mutually compatible */
787 /* note that mutual compatiblity is not an issue here */
788 if (cmd
->start_src
!= TRIG_NOW
&& cmd
->start_src
!= TRIG_INT
)
790 if (cmd
->scan_begin_src
!= TRIG_TIMER
&&
791 cmd
->scan_begin_src
!= TRIG_EXT
)
797 /* step 3: make sure arguments are trivially compatible */
799 if (cmd
->start_arg
!= 0) {
800 /* same for both TRIG_INT and TRIG_NOW */
804 #define MAX_SPEED (TIMER_BASE) /* in nanoseconds */
806 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
807 if (cmd
->scan_begin_arg
< MAX_SPEED
) {
808 cmd
->scan_begin_arg
= MAX_SPEED
;
811 /* no minumum speed */
814 /* should be level/edge, hi/lo specification here */
815 if (cmd
->scan_begin_arg
!= 0) {
816 cmd
->scan_begin_arg
= 0;
820 if (cmd
->convert_arg
!= 0) {
821 cmd
->convert_arg
= 0;
825 if (cmd
->scan_end_arg
!= cmd
->chanlist_len
) {
826 cmd
->scan_end_arg
= cmd
->chanlist_len
;
829 if (cmd
->stop_src
== TRIG_COUNT
) {
833 if (cmd
->stop_arg
!= 0) {
842 /* step 4: fix up any arguments */
844 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
845 tmp
= cmd
->scan_begin_arg
;
846 ni_pcidio_ns_to_timer(&cmd
->scan_begin_arg
,
847 cmd
->flags
& TRIG_ROUND_MASK
);
848 if (tmp
!= cmd
->scan_begin_arg
)
858 static int ni_pcidio_ns_to_timer(int *nanosec
, int round_mode
)
864 switch (round_mode
) {
865 case TRIG_ROUND_NEAREST
:
867 divider
= (*nanosec
+ base
/ 2) / base
;
869 case TRIG_ROUND_DOWN
:
870 divider
= (*nanosec
) / base
;
873 divider
= (*nanosec
+ base
- 1) / base
;
877 *nanosec
= base
* divider
;
881 static int ni_pcidio_cmd(struct comedi_device
* dev
, struct comedi_subdevice
* s
)
883 struct comedi_cmd
*cmd
= &s
->async
->cmd
;
885 /* XXX configure ports for input */
886 writel(0x0000, devpriv
->mite
->daq_io_addr
+ Port_Pin_Directions(0));
889 /* enable fifos A B C D */
890 writeb(0x0f, devpriv
->mite
->daq_io_addr
+ Data_Path
);
892 /* set transfer width a 32 bits */
893 writeb(TransferWidth(0) | TransferLength(0),
894 devpriv
->mite
->daq_io_addr
+ Transfer_Size_Control
);
896 writeb(0x03, devpriv
->mite
->daq_io_addr
+ Data_Path
);
897 writeb(TransferWidth(3) | TransferLength(0),
898 devpriv
->mite
->daq_io_addr
+ Transfer_Size_Control
);
901 /* protocol configuration */
902 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
903 /* page 4-5, "input with internal REQs" */
904 writeb(0, devpriv
->mite
->daq_io_addr
+ OpMode
);
905 writeb(0x00, devpriv
->mite
->daq_io_addr
+ ClockReg
);
906 writeb(1, devpriv
->mite
->daq_io_addr
+ Sequence
);
907 writeb(0x04, devpriv
->mite
->daq_io_addr
+ ReqReg
);
908 writeb(4, devpriv
->mite
->daq_io_addr
+ BlockMode
);
909 writeb(3, devpriv
->mite
->daq_io_addr
+ LinePolarities
);
910 writeb(0xc0, devpriv
->mite
->daq_io_addr
+ AckSer
);
911 writel(ni_pcidio_ns_to_timer(&cmd
->scan_begin_arg
,
913 devpriv
->mite
->daq_io_addr
+ StartDelay
);
914 writeb(1, devpriv
->mite
->daq_io_addr
+ ReqDelay
);
915 writeb(1, devpriv
->mite
->daq_io_addr
+ ReqNotDelay
);
916 writeb(1, devpriv
->mite
->daq_io_addr
+ AckDelay
);
917 writeb(0x0b, devpriv
->mite
->daq_io_addr
+ AckNotDelay
);
918 writeb(0x01, devpriv
->mite
->daq_io_addr
+ Data1Delay
);
919 /* manual, page 4-5: ClockSpeed comment is incorrectly listed
921 writew(0, devpriv
->mite
->daq_io_addr
+ ClockSpeed
);
922 writeb(0, devpriv
->mite
->daq_io_addr
+ DAQOptions
);
925 /* page 4-5, "input with external REQs" */
926 writeb(0, devpriv
->mite
->daq_io_addr
+ OpMode
);
927 writeb(0x00, devpriv
->mite
->daq_io_addr
+ ClockReg
);
928 writeb(0, devpriv
->mite
->daq_io_addr
+ Sequence
);
929 writeb(0x00, devpriv
->mite
->daq_io_addr
+ ReqReg
);
930 writeb(4, devpriv
->mite
->daq_io_addr
+ BlockMode
);
931 writeb(0, devpriv
->mite
->daq_io_addr
+ LinePolarities
);
932 writeb(0x00, devpriv
->mite
->daq_io_addr
+ AckSer
);
933 writel(1, devpriv
->mite
->daq_io_addr
+ StartDelay
);
934 writeb(1, devpriv
->mite
->daq_io_addr
+ ReqDelay
);
935 writeb(1, devpriv
->mite
->daq_io_addr
+ ReqNotDelay
);
936 writeb(1, devpriv
->mite
->daq_io_addr
+ AckDelay
);
937 writeb(0x0C, devpriv
->mite
->daq_io_addr
+ AckNotDelay
);
938 writeb(0x10, devpriv
->mite
->daq_io_addr
+ Data1Delay
);
939 writew(0, devpriv
->mite
->daq_io_addr
+ ClockSpeed
);
940 writeb(0x60, devpriv
->mite
->daq_io_addr
+ DAQOptions
);
943 if (cmd
->stop_src
== TRIG_COUNT
) {
944 writel(cmd
->stop_arg
,
945 devpriv
->mite
->daq_io_addr
+ Transfer_Count
);
951 writeb(ClearPrimaryTC
| ClearSecondaryTC
,
952 devpriv
->mite
->daq_io_addr
+ Group_1_First_Clear
);
955 int retval
= setup_mite_dma(dev
, s
);
960 writeb(0x00, devpriv
->mite
->daq_io_addr
+ DMA_Line_Control_Group1
);
962 writeb(0x00, devpriv
->mite
->daq_io_addr
+ DMA_Line_Control_Group2
);
964 /* clear and enable interrupts */
965 writeb(0xff, devpriv
->mite
->daq_io_addr
+ Group_1_First_Clear
);
966 //writeb(ClearExpired,devpriv->mite->daq_io_addr+Group_1_Second_Clear);
968 writeb(IntEn
, devpriv
->mite
->daq_io_addr
+ Interrupt_Control
);
970 devpriv
->mite
->daq_io_addr
+ Master_DMA_And_Interrupt_Control
);
972 if (cmd
->stop_src
== TRIG_NONE
) {
973 devpriv
->OpModeBits
= DataLatching(0) | RunMode(7);
974 } else { // TRIG_TIMER
975 devpriv
->OpModeBits
= Numbered
| RunMode(7);
977 if (cmd
->start_src
== TRIG_NOW
) {
979 writeb(devpriv
->OpModeBits
,
980 devpriv
->mite
->daq_io_addr
+ OpMode
);
981 s
->async
->inttrig
= NULL
;
984 s
->async
->inttrig
= ni_pcidio_inttrig
;
987 DPRINTK("ni_pcidio: command started\n");
991 static int setup_mite_dma(struct comedi_device
* dev
, struct comedi_subdevice
* s
)
995 retval
= ni_pcidio_request_di_mite_channel(dev
);
999 devpriv
->di_mite_chan
->dir
= COMEDI_INPUT
;
1001 mite_prep_dma(devpriv
->di_mite_chan
, 32, 32);
1003 mite_dma_arm(devpriv
->di_mite_chan
);
1007 static int ni_pcidio_inttrig(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
1008 unsigned int trignum
)
1013 writeb(devpriv
->OpModeBits
, devpriv
->mite
->daq_io_addr
+ OpMode
);
1014 s
->async
->inttrig
= NULL
;
1019 static int ni_pcidio_cancel(struct comedi_device
* dev
, struct comedi_subdevice
* s
)
1022 devpriv
->mite
->daq_io_addr
+ Master_DMA_And_Interrupt_Control
);
1023 ni_pcidio_release_di_mite_channel(dev
);
1028 static int ni_pcidio_change(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
1029 unsigned long new_size
)
1033 ret
= mite_buf_change(devpriv
->di_mite_ring
, s
->async
);
1037 memset(s
->async
->prealloc_buf
, 0xaa, s
->async
->prealloc_bufsz
);
1042 static int pci_6534_load_fpga(struct comedi_device
* dev
, int fpga_index
, u8
* data
,
1045 static const int timeout
= 1000;
1047 writew(0x80 | fpga_index
,
1048 devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1049 writew(0xc0 | fpga_index
,
1050 devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1052 (readw(devpriv
->mite
->daq_io_addr
+
1053 Firmware_Status_Register
) & 0x2) == 0
1054 && i
< timeout
; ++i
) {
1058 printk("ni_pcidio: failed to load fpga %i, waiting for status 0x2\n", fpga_index
);
1061 writew(0x80 | fpga_index
,
1062 devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1064 readw(devpriv
->mite
->daq_io_addr
+ Firmware_Status_Register
) !=
1065 0x3 && i
< timeout
; ++i
) {
1069 printk("ni_pcidio: failed to load fpga %i, waiting for status 0x3\n", fpga_index
);
1072 for (j
= 0; j
+ 1 < data_len
;) {
1073 unsigned int value
= data
[j
++];
1074 value
|= data
[j
++] << 8;
1076 devpriv
->mite
->daq_io_addr
+ Firmware_Data_Register
);
1078 (readw(devpriv
->mite
->daq_io_addr
+
1079 Firmware_Status_Register
) & 0x2) == 0
1080 && i
< timeout
; ++i
) {
1084 printk("ni_pcidio: failed to load word into fpga %i\n",
1091 writew(0x0, devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1095 static int pci_6534_reset_fpga(struct comedi_device
* dev
, int fpga_index
)
1097 return pci_6534_load_fpga(dev
, fpga_index
, NULL
, 0);
1100 static int pci_6534_reset_fpgas(struct comedi_device
* dev
)
1104 writew(0x0, devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1105 for (i
= 0; i
< 3; ++i
) {
1106 ret
= pci_6534_reset_fpga(dev
, i
);
1110 writew(0x0, devpriv
->mite
->daq_io_addr
+ Firmware_Mask_Register
);
1114 static void pci_6534_init_main_fpga(struct comedi_device
* dev
)
1116 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_Control1_Register
);
1117 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_Control2_Register
);
1118 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_SCALS_Counter_Register
);
1119 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_SCAMS_Counter_Register
);
1120 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_SCBLS_Counter_Register
);
1121 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_SCBMS_Counter_Register
);
1124 static int pci_6534_upload_firmware(struct comedi_device
* dev
, int options
[])
1127 void *main_fpga_data
, *scarab_a_data
, *scarab_b_data
;
1128 int main_fpga_data_len
, scarab_a_data_len
, scarab_b_data_len
;
1130 if (options
[COMEDI_DEVCONF_AUX_DATA_LENGTH
] == 0)
1132 ret
= pci_6534_reset_fpgas(dev
);
1135 main_fpga_data
= comedi_aux_data(options
, 0);
1136 main_fpga_data_len
= options
[COMEDI_DEVCONF_AUX_DATA0_LENGTH
];
1137 ret
= pci_6534_load_fpga(dev
, 2, main_fpga_data
, main_fpga_data_len
);
1140 pci_6534_init_main_fpga(dev
);
1141 scarab_a_data
= comedi_aux_data(options
, 1);
1142 scarab_a_data_len
= options
[COMEDI_DEVCONF_AUX_DATA1_LENGTH
];
1143 ret
= pci_6534_load_fpga(dev
, 0, scarab_a_data
, scarab_a_data_len
);
1146 scarab_b_data
= comedi_aux_data(options
, 2);
1147 scarab_b_data_len
= options
[COMEDI_DEVCONF_AUX_DATA2_LENGTH
];
1148 ret
= pci_6534_load_fpga(dev
, 1, scarab_b_data
, scarab_b_data_len
);
1154 static int nidio_attach(struct comedi_device
* dev
, struct comedi_devconfig
* it
)
1156 struct comedi_subdevice
*s
;
1162 printk("comedi%d: nidio:", dev
->minor
);
1164 if ((ret
= alloc_private(dev
, sizeof(struct nidio96_private
))) < 0)
1166 spin_lock_init(&devpriv
->mite_channel_lock
);
1168 ret
= nidio_find_device(dev
, it
->options
[0], it
->options
[1]);
1172 ret
= mite_setup(devpriv
->mite
);
1174 printk("error setting up mite\n");
1177 comedi_set_hw_dev(dev
, &devpriv
->mite
->pcidev
->dev
);
1178 devpriv
->di_mite_ring
= mite_alloc_ring(devpriv
->mite
);
1179 if (devpriv
->di_mite_ring
== NULL
)
1182 dev
->board_name
= this_board
->name
;
1183 irq
= mite_irq(devpriv
->mite
);
1184 printk(" %s", dev
->board_name
);
1185 if (this_board
->uses_firmware
) {
1186 ret
= pci_6534_upload_firmware(dev
, it
->options
);
1190 if (!this_board
->is_diodaq
) {
1191 n_subdevices
= this_board
->n_8255
;
1195 if ((ret
= alloc_subdevices(dev
, n_subdevices
)) < 0)
1198 if (!this_board
->is_diodaq
) {
1199 for (i
= 0; i
< this_board
->n_8255
; i
++) {
1200 subdev_8255_init(dev
, dev
->subdevices
+ i
,
1202 (unsigned long)(devpriv
->mite
->daq_io_addr
+
1203 NIDIO_8255_BASE(i
)));
1208 readb(devpriv
->mite
->daq_io_addr
+ Chip_Version
));
1210 s
= dev
->subdevices
+ 0;
1212 dev
->read_subdev
= s
;
1213 s
->type
= COMEDI_SUBD_DIO
;
1215 SDF_READABLE
| SDF_WRITABLE
| SDF_LSAMPL
| SDF_PACKED
|
1218 s
->range_table
= &range_digital
;
1220 s
->insn_config
= &ni_pcidio_insn_config
;
1221 s
->insn_bits
= &ni_pcidio_insn_bits
;
1222 s
->do_cmd
= &ni_pcidio_cmd
;
1223 s
->do_cmdtest
= &ni_pcidio_cmdtest
;
1224 s
->cancel
= &ni_pcidio_cancel
;
1225 s
->len_chanlist
= 32; /* XXX */
1226 s
->buf_change
= &ni_pcidio_change
;
1227 s
->async_dma_dir
= DMA_BIDIRECTIONAL
;
1229 writel(0, devpriv
->mite
->daq_io_addr
+ Port_IO(0));
1230 writel(0, devpriv
->mite
->daq_io_addr
+ Port_Pin_Directions(0));
1231 writel(0, devpriv
->mite
->daq_io_addr
+ Port_Pin_Mask(0));
1233 /* disable interrupts on board */
1235 devpriv
->mite
->daq_io_addr
+
1236 Master_DMA_And_Interrupt_Control
);
1238 ret
= comedi_request_irq(irq
, nidio_interrupt
, IRQF_SHARED
,
1241 printk(" irq not available");
1251 static int nidio_detach(struct comedi_device
* dev
)
1255 if (this_board
&& !this_board
->is_diodaq
) {
1256 for (i
= 0; i
< this_board
->n_8255
; i
++) {
1257 subdev_8255_cleanup(dev
, dev
->subdevices
+ i
);
1262 comedi_free_irq(dev
->irq
, dev
);
1265 if (devpriv
->di_mite_ring
) {
1266 mite_free_ring(devpriv
->di_mite_ring
);
1267 devpriv
->di_mite_ring
= NULL
;
1270 mite_unsetup(devpriv
->mite
);
1275 static int nidio_find_device(struct comedi_device
* dev
, int bus
, int slot
)
1277 struct mite_struct
*mite
;
1280 for (mite
= mite_devices
; mite
; mite
= mite
->next
) {
1284 if (bus
!= mite
->pcidev
->bus
->number
||
1285 slot
!= PCI_SLOT(mite
->pcidev
->devfn
))
1288 for (i
= 0; i
< n_nidio_boards
; i
++) {
1289 if (mite_device_id(mite
) == nidio_boards
[i
].dev_id
) {
1290 dev
->board_ptr
= nidio_boards
+ i
;
1291 devpriv
->mite
= mite
;
1297 printk("no device found\n");
1298 mite_list_devices();
1302 COMEDI_PCI_INITCLEANUP(driver_pcidio
, ni_pcidio_pci_table
);