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
70 /* #define DEBUG_FLAGS */
72 #include <linux/interrupt.h>
73 #include <linux/sched.h>
74 #include "../comedidev.h"
81 #define DPRINTK(format, args...) printk(format, ## args)
83 #define DPRINTK(format, args...)
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)
120 /* #define SerialRose */
121 /* #define ReqRose */
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;
215 static inline unsigned secondary_DMAChannel_bits(unsigned channel
)
217 return (channel
<< 2) & 0xc;
220 #define Transfer_Size_Control 77
221 #define TransferWidth(x) ((x)&3)
222 #define TransferLength(x) (((x)&3)<<3)
223 #define RequireRLevel (1<<5)
225 #define Protocol_Register_15 79
226 #define DAQOptions Protocol_Register_15
227 #define StartSource(x) ((x)&0x3)
228 #define InvertStart (1<<2)
229 #define StopSource(x) (((x)&0x3)<<3)
230 #define ReqStart (1<<6)
231 #define PreStart (1<<7)
233 #define Pattern_Detection 81
234 #define DetectionMethod (1<<0)
235 #define InvertMatch (1<<1)
236 #define IE_Pattern_Detection (1<<2)
238 #define Protocol_Register_9 82
239 #define ReqDelay Protocol_Register_9
241 #define Protocol_Register_10 83
242 #define ReqNotDelay Protocol_Register_10
244 #define Protocol_Register_11 84
245 #define AckDelay Protocol_Register_11
247 #define Protocol_Register_12 85
248 #define AckNotDelay Protocol_Register_12
250 #define Protocol_Register_13 86
251 #define Data1Delay Protocol_Register_13
253 #define Protocol_Register_8 88 /* 32 bit */
254 #define StartDelay Protocol_Register_8
256 enum pci_6534_firmware_registers
{ /* 16 bit */
257 Firmware_Control_Register
= 0x100,
258 Firmware_Status_Register
= 0x104,
259 Firmware_Data_Register
= 0x108,
260 Firmware_Mask_Register
= 0x10c,
261 Firmware_Debug_Register
= 0x110,
263 /* main fpga registers (32 bit)*/
264 enum pci_6534_fpga_registers
{
265 FPGA_Control1_Register
= 0x200,
266 FPGA_Control2_Register
= 0x204,
267 FPGA_Irq_Mask_Register
= 0x208,
268 FPGA_Status_Register
= 0x20c,
269 FPGA_Signature_Register
= 0x210,
270 FPGA_SCALS_Counter_Register
= 0x280, /*write-clear */
271 FPGA_SCAMS_Counter_Register
= 0x284, /*write-clear */
272 FPGA_SCBLS_Counter_Register
= 0x288, /*write-clear */
273 FPGA_SCBMS_Counter_Register
= 0x28c, /*write-clear */
274 FPGA_Temp_Control_Register
= 0x2a0,
275 FPGA_DAR_Register
= 0x2a8,
276 FPGA_ELC_Read_Register
= 0x2b8,
277 FPGA_ELC_Write_Register
= 0x2bc,
279 enum FPGA_Control_Bits
{
280 FPGA_Enable_Bit
= 0x8000,
283 #define TIMER_BASE 50 /* nanoseconds */
286 #define IntEn (CountExpired|Waited|PrimaryTC|SecondaryTC)
288 #define IntEn (TransferReady|CountExpired|Waited|PrimaryTC|SecondaryTC)
291 static int nidio_attach(struct comedi_device
*dev
, struct comedi_devconfig
*it
);
292 static int nidio_detach(struct comedi_device
*dev
);
293 static int ni_pcidio_cancel(struct comedi_device
*dev
,
294 struct comedi_subdevice
*s
);
296 static struct comedi_driver driver_pcidio
= {
297 .driver_name
= "ni_pcidio",
298 .module
= THIS_MODULE
,
299 .attach
= nidio_attach
,
300 .detach
= nidio_detach
,
308 unsigned int is_diodaq
:1;
309 unsigned int uses_firmware
:1;
312 static const struct nidio_board nidio_boards
[] = {
315 .name
= "pci-dio-32hs",
334 .name
= "pci-dio-96",
340 .name
= "pci-dio-96b",
376 #define n_nidio_boards ARRAY_SIZE(nidio_boards)
377 #define this_board ((const struct nidio_board *)dev->board_ptr)
379 static DEFINE_PCI_DEVICE_TABLE(ni_pcidio_pci_table
) = {
380 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x1150)},
381 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x1320)},
382 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x12b0)},
383 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x0160)},
384 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x1630)},
385 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x13c0)},
386 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x0400)},
387 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x1250)},
388 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x17d0)},
389 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x1800)},
393 MODULE_DEVICE_TABLE(pci
, ni_pcidio_pci_table
);
395 struct nidio96_private
{
396 struct mite_struct
*mite
;
399 unsigned short OpModeBits
;
400 struct mite_channel
*di_mite_chan
;
401 struct mite_dma_descriptor_ring
*di_mite_ring
;
402 spinlock_t mite_channel_lock
;
404 #define devpriv ((struct nidio96_private *)dev->private)
406 static int ni_pcidio_cmdtest(struct comedi_device
*dev
,
407 struct comedi_subdevice
*s
,
408 struct comedi_cmd
*cmd
);
409 static int ni_pcidio_cmd(struct comedi_device
*dev
, struct comedi_subdevice
*s
);
410 static int ni_pcidio_inttrig(struct comedi_device
*dev
,
411 struct comedi_subdevice
*s
, unsigned int trignum
);
412 static int nidio_find_device(struct comedi_device
*dev
, int bus
, int slot
);
413 static int ni_pcidio_ns_to_timer(int *nanosec
, int round_mode
);
414 static int setup_mite_dma(struct comedi_device
*dev
,
415 struct comedi_subdevice
*s
);
418 static void ni_pcidio_print_flags(unsigned int flags
);
419 static void ni_pcidio_print_status(unsigned int status
);
421 #define ni_pcidio_print_flags(x)
422 #define ni_pcidio_print_status(x)
425 static int ni_pcidio_request_di_mite_channel(struct comedi_device
*dev
)
429 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
430 BUG_ON(devpriv
->di_mite_chan
);
431 devpriv
->di_mite_chan
=
432 mite_request_channel_in_range(devpriv
->mite
,
433 devpriv
->di_mite_ring
, 1, 2);
434 if (devpriv
->di_mite_chan
== NULL
) {
435 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
436 comedi_error(dev
, "failed to reserve mite dma channel.");
439 writeb(primary_DMAChannel_bits(devpriv
->di_mite_chan
->channel
) |
440 secondary_DMAChannel_bits(devpriv
->di_mite_chan
->channel
),
441 devpriv
->mite
->daq_io_addr
+ DMA_Line_Control_Group1
);
443 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
447 static void ni_pcidio_release_di_mite_channel(struct comedi_device
*dev
)
451 spin_lock_irqsave(&devpriv
->mite_channel_lock
, flags
);
452 if (devpriv
->di_mite_chan
) {
453 mite_dma_disarm(devpriv
->di_mite_chan
);
454 mite_dma_reset(devpriv
->di_mite_chan
);
455 mite_release_channel(devpriv
->di_mite_chan
);
456 devpriv
->di_mite_chan
= NULL
;
457 writeb(primary_DMAChannel_bits(0) |
458 secondary_DMAChannel_bits(0),
459 devpriv
->mite
->daq_io_addr
+ DMA_Line_Control_Group1
);
462 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, flags
);
465 static int nidio96_8255_cb(int dir
, int port
, int data
, unsigned long iobase
)
468 writeb(data
, (void *)(iobase
+ port
));
471 return readb((void *)(iobase
+ port
));
475 void ni_pcidio_event(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
478 async
->events
& (COMEDI_CB_EOA
| COMEDI_CB_ERROR
|
479 COMEDI_CB_OVERFLOW
)) {
480 ni_pcidio_cancel(dev
, s
);
482 comedi_event(dev
, s
);
485 static irqreturn_t
nidio_interrupt(int irq
, void *d
)
487 struct comedi_device
*dev
= d
;
488 struct comedi_subdevice
*s
= dev
->subdevices
;
489 struct comedi_async
*async
= s
->async
;
490 struct mite_struct
*mite
= devpriv
->mite
;
493 long int AuxData
= 0;
499 unsigned int m_status
= 0;
500 unsigned long irq_flags
;
502 /* interrupcions parasites */
503 if (dev
->attached
== 0) {
504 /* assume it's from another card */
508 status
= readb(devpriv
->mite
->daq_io_addr
+
509 Interrupt_And_Window_Status
);
510 flags
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
512 DPRINTK("ni_pcidio_interrupt: status=0x%02x,flags=0x%02x\n",
514 ni_pcidio_print_flags(flags
);
515 ni_pcidio_print_status(status
);
517 /* printk("buf[0]=%08x\n",*(unsigned int *)async->prealloc_buf); */
518 /* printk("buf[4096]=%08x\n",
519 *(unsigned int *)(async->prealloc_buf+4096)); */
521 spin_lock_irqsave(&devpriv
->mite_channel_lock
, irq_flags
);
522 if (devpriv
->di_mite_chan
)
523 m_status
= mite_get_status(devpriv
->di_mite_chan
);
525 mite_print_chsr(m_status
);
527 /* printk("mite_bytes_transferred: %d\n",
528 mite_bytes_transferred(mite,DI_DMA_CHAN)); */
530 /* mite_dump_regs(mite); */
531 if (m_status
& CHSR_INT
) {
532 if (m_status
& CHSR_LINKC
) {
535 MITE_CHOR(devpriv
->di_mite_chan
->channel
));
536 mite_sync_input_dma(devpriv
->di_mite_chan
, s
->async
);
537 /* XXX need to byteswap */
539 if (m_status
& ~(CHSR_INT
| CHSR_LINKC
| CHSR_DONE
| CHSR_DRDY
|
540 CHSR_DRQ1
| CHSR_MRDY
)) {
541 DPRINTK("unknown mite interrupt, disabling IRQ\n");
542 async
->events
|= COMEDI_CB_EOA
| COMEDI_CB_ERROR
;
543 disable_irq(dev
->irq
);
546 spin_unlock_irqrestore(&devpriv
->mite_channel_lock
, irq_flags
);
548 while (status
& DataLeft
) {
551 DPRINTK("too much work in interrupt\n");
553 devpriv
->mite
->daq_io_addr
+
554 Master_DMA_And_Interrupt_Control
);
560 if (flags
& TransferReady
) {
561 /* DPRINTK("TransferReady\n"); */
562 while (flags
& TransferReady
) {
565 DPRINTK("too much work in interrupt\n");
567 devpriv
->mite
->daq_io_addr
+
568 Master_DMA_And_Interrupt_Control
573 readl(devpriv
->mite
->daq_io_addr
+
575 data1
= AuxData
& 0xffff;
576 data2
= (AuxData
& 0xffff0000) >> 16;
577 comedi_buf_put(async
, data1
);
578 comedi_buf_put(async
, data2
);
579 /* DPRINTK("read:%d, %d\n",data1,data2); */
580 flags
= readb(devpriv
->mite
->daq_io_addr
+
583 /* DPRINTK("buf_int_count: %d\n",
584 async->buf_int_count); */
585 /* DPRINTK("1) IntEn=%d,flags=%d,status=%d\n",
586 IntEn,flags,status); */
587 /* ni_pcidio_print_flags(flags); */
588 /* ni_pcidio_print_status(status); */
589 async
->events
|= COMEDI_CB_BLOCK
;
592 if (flags
& CountExpired
) {
593 DPRINTK("CountExpired\n");
595 devpriv
->mite
->daq_io_addr
+
596 Group_1_Second_Clear
);
597 async
->events
|= COMEDI_CB_EOA
;
599 writeb(0x00, devpriv
->mite
->daq_io_addr
+ OpMode
);
601 } else if (flags
& Waited
) {
604 devpriv
->mite
->daq_io_addr
+
605 Group_1_First_Clear
);
606 async
->events
|= COMEDI_CB_EOA
| COMEDI_CB_ERROR
;
608 } else if (flags
& PrimaryTC
) {
609 DPRINTK("PrimaryTC\n");
610 writeb(ClearPrimaryTC
,
611 devpriv
->mite
->daq_io_addr
+
612 Group_1_First_Clear
);
613 async
->events
|= COMEDI_CB_EOA
;
614 } else if (flags
& SecondaryTC
) {
615 DPRINTK("SecondaryTC\n");
616 writeb(ClearSecondaryTC
,
617 devpriv
->mite
->daq_io_addr
+
618 Group_1_First_Clear
);
619 async
->events
|= COMEDI_CB_EOA
;
623 printk("ni_pcidio: unknown interrupt\n");
624 async
->events
|= COMEDI_CB_ERROR
| COMEDI_CB_EOA
;
626 devpriv
->mite
->daq_io_addr
+
627 Master_DMA_And_Interrupt_Control
);
630 flags
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
631 status
= readb(devpriv
->mite
->daq_io_addr
+
632 Interrupt_And_Window_Status
);
633 /* DPRINTK("loop end: IntEn=0x%02x,flags=0x%02x,"
634 "status=0x%02x\n", IntEn, flags, status); */
635 /* ni_pcidio_print_flags(flags); */
636 /* ni_pcidio_print_status(status); */
640 ni_pcidio_event(dev
, s
);
644 devpriv
->mite
->daq_io_addr
+
645 Master_DMA_And_Interrupt_Control
);
652 static const char *const flags_strings
[] = {
653 "TransferReady", "CountExpired", "2", "3",
654 "4", "Waited", "PrimaryTC", "SecondaryTC",
657 static void ni_pcidio_print_flags(unsigned int flags
)
661 printk(KERN_INFO
"group_1_flags:");
662 for (i
= 7; i
>= 0; i
--) {
663 if (flags
& (1 << i
))
664 printk(" %s", flags_strings
[i
]);
669 static char *status_strings
[] = {
670 "DataLeft1", "Reserved1", "Req1", "StopTrig1",
671 "DataLeft2", "Reserved2", "Req2", "StopTrig2",
674 static void ni_pcidio_print_status(unsigned int flags
)
678 printk(KERN_INFO
"group_status:");
679 for (i
= 7; i
>= 0; i
--) {
680 if (flags
& (1 << i
))
681 printk(" %s", status_strings
[i
]);
688 static void debug_int(struct comedi_device
*dev
)
691 static int n_int
= 0;
694 do_gettimeofday(&tv
);
695 a
= readb(devpriv
->mite
->daq_io_addr
+ Group_Status
);
696 b
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
699 DPRINTK("status 0x%02x flags 0x%02x time %06d\n", a
, b
,
704 writew(0xff, devpriv
->mite
->daq_io_addr
+ Group_1_FIFO
);
705 b
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
708 b
= readb(devpriv
->mite
->daq_io_addr
+ Group_1_Flags
);
711 DPRINTK("new status 0x%02x\n", b
);
717 static int ni_pcidio_insn_config(struct comedi_device
*dev
,
718 struct comedi_subdevice
*s
,
719 struct comedi_insn
*insn
, unsigned int *data
)
724 case INSN_CONFIG_DIO_OUTPUT
:
725 s
->io_bits
|= 1 << CR_CHAN(insn
->chanspec
);
727 case INSN_CONFIG_DIO_INPUT
:
728 s
->io_bits
&= ~(1 << CR_CHAN(insn
->chanspec
));
730 case INSN_CONFIG_DIO_QUERY
:
733 io_bits
& (1 << CR_CHAN(insn
->chanspec
))) ? COMEDI_OUTPUT
:
740 writel(s
->io_bits
, devpriv
->mite
->daq_io_addr
+ Port_Pin_Directions(0));
745 static int ni_pcidio_insn_bits(struct comedi_device
*dev
,
746 struct comedi_subdevice
*s
,
747 struct comedi_insn
*insn
, unsigned int *data
)
752 s
->state
&= ~data
[0];
753 s
->state
|= (data
[0] & data
[1]);
754 writel(s
->state
, devpriv
->mite
->daq_io_addr
+ Port_IO(0));
756 data
[1] = readl(devpriv
->mite
->daq_io_addr
+ Port_IO(0));
761 static int ni_pcidio_cmdtest(struct comedi_device
*dev
,
762 struct comedi_subdevice
*s
, struct comedi_cmd
*cmd
)
767 /* step 1: make sure trigger sources are trivially valid */
769 tmp
= cmd
->start_src
;
770 cmd
->start_src
&= TRIG_NOW
| TRIG_INT
;
771 if (!cmd
->start_src
|| tmp
!= cmd
->start_src
)
774 tmp
= cmd
->scan_begin_src
;
775 cmd
->scan_begin_src
&= TRIG_TIMER
| TRIG_EXT
;
776 if (!cmd
->scan_begin_src
|| tmp
!= cmd
->scan_begin_src
)
779 tmp
= cmd
->convert_src
;
780 cmd
->convert_src
&= TRIG_NOW
;
781 if (!cmd
->convert_src
|| tmp
!= cmd
->convert_src
)
784 tmp
= cmd
->scan_end_src
;
785 cmd
->scan_end_src
&= TRIG_COUNT
;
786 if (!cmd
->scan_end_src
|| tmp
!= cmd
->scan_end_src
)
790 cmd
->stop_src
&= TRIG_COUNT
| TRIG_NONE
;
791 if (!cmd
->stop_src
|| tmp
!= cmd
->stop_src
)
797 /* step 2: make sure trigger sources are unique and mutually
800 /* note that mutual compatibility is not an issue here */
801 if (cmd
->start_src
!= TRIG_NOW
&& cmd
->start_src
!= TRIG_INT
)
803 if (cmd
->scan_begin_src
!= TRIG_TIMER
&&
804 cmd
->scan_begin_src
!= TRIG_EXT
)
810 /* step 3: make sure arguments are trivially compatible */
812 if (cmd
->start_arg
!= 0) {
813 /* same for both TRIG_INT and TRIG_NOW */
817 #define MAX_SPEED (TIMER_BASE) /* in nanoseconds */
819 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
820 if (cmd
->scan_begin_arg
< MAX_SPEED
) {
821 cmd
->scan_begin_arg
= MAX_SPEED
;
824 /* no minumum speed */
827 /* should be level/edge, hi/lo specification here */
828 if (cmd
->scan_begin_arg
!= 0) {
829 cmd
->scan_begin_arg
= 0;
833 if (cmd
->convert_arg
!= 0) {
834 cmd
->convert_arg
= 0;
838 if (cmd
->scan_end_arg
!= cmd
->chanlist_len
) {
839 cmd
->scan_end_arg
= cmd
->chanlist_len
;
842 if (cmd
->stop_src
== TRIG_COUNT
) {
846 if (cmd
->stop_arg
!= 0) {
855 /* step 4: fix up any arguments */
857 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
858 tmp
= cmd
->scan_begin_arg
;
859 ni_pcidio_ns_to_timer(&cmd
->scan_begin_arg
,
860 cmd
->flags
& TRIG_ROUND_MASK
);
861 if (tmp
!= cmd
->scan_begin_arg
)
871 static int ni_pcidio_ns_to_timer(int *nanosec
, int round_mode
)
877 switch (round_mode
) {
878 case TRIG_ROUND_NEAREST
:
880 divider
= (*nanosec
+ base
/ 2) / base
;
882 case TRIG_ROUND_DOWN
:
883 divider
= (*nanosec
) / base
;
886 divider
= (*nanosec
+ base
- 1) / base
;
890 *nanosec
= base
* divider
;
894 static int ni_pcidio_cmd(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
896 struct comedi_cmd
*cmd
= &s
->async
->cmd
;
898 /* XXX configure ports for input */
899 writel(0x0000, devpriv
->mite
->daq_io_addr
+ Port_Pin_Directions(0));
902 /* enable fifos A B C D */
903 writeb(0x0f, devpriv
->mite
->daq_io_addr
+ Data_Path
);
905 /* set transfer width a 32 bits */
906 writeb(TransferWidth(0) | TransferLength(0),
907 devpriv
->mite
->daq_io_addr
+ Transfer_Size_Control
);
909 writeb(0x03, devpriv
->mite
->daq_io_addr
+ Data_Path
);
910 writeb(TransferWidth(3) | TransferLength(0),
911 devpriv
->mite
->daq_io_addr
+ Transfer_Size_Control
);
914 /* protocol configuration */
915 if (cmd
->scan_begin_src
== TRIG_TIMER
) {
916 /* page 4-5, "input with internal REQs" */
917 writeb(0, devpriv
->mite
->daq_io_addr
+ OpMode
);
918 writeb(0x00, devpriv
->mite
->daq_io_addr
+ ClockReg
);
919 writeb(1, devpriv
->mite
->daq_io_addr
+ Sequence
);
920 writeb(0x04, devpriv
->mite
->daq_io_addr
+ ReqReg
);
921 writeb(4, devpriv
->mite
->daq_io_addr
+ BlockMode
);
922 writeb(3, devpriv
->mite
->daq_io_addr
+ LinePolarities
);
923 writeb(0xc0, devpriv
->mite
->daq_io_addr
+ AckSer
);
924 writel(ni_pcidio_ns_to_timer(&cmd
->scan_begin_arg
,
926 devpriv
->mite
->daq_io_addr
+ StartDelay
);
927 writeb(1, devpriv
->mite
->daq_io_addr
+ ReqDelay
);
928 writeb(1, devpriv
->mite
->daq_io_addr
+ ReqNotDelay
);
929 writeb(1, devpriv
->mite
->daq_io_addr
+ AckDelay
);
930 writeb(0x0b, devpriv
->mite
->daq_io_addr
+ AckNotDelay
);
931 writeb(0x01, devpriv
->mite
->daq_io_addr
+ Data1Delay
);
932 /* manual, page 4-5: ClockSpeed comment is incorrectly listed
934 writew(0, devpriv
->mite
->daq_io_addr
+ ClockSpeed
);
935 writeb(0, devpriv
->mite
->daq_io_addr
+ DAQOptions
);
938 /* page 4-5, "input with external REQs" */
939 writeb(0, devpriv
->mite
->daq_io_addr
+ OpMode
);
940 writeb(0x00, devpriv
->mite
->daq_io_addr
+ ClockReg
);
941 writeb(0, devpriv
->mite
->daq_io_addr
+ Sequence
);
942 writeb(0x00, devpriv
->mite
->daq_io_addr
+ ReqReg
);
943 writeb(4, devpriv
->mite
->daq_io_addr
+ BlockMode
);
944 writeb(0, devpriv
->mite
->daq_io_addr
+ LinePolarities
);
945 writeb(0x00, devpriv
->mite
->daq_io_addr
+ AckSer
);
946 writel(1, devpriv
->mite
->daq_io_addr
+ StartDelay
);
947 writeb(1, devpriv
->mite
->daq_io_addr
+ ReqDelay
);
948 writeb(1, devpriv
->mite
->daq_io_addr
+ ReqNotDelay
);
949 writeb(1, devpriv
->mite
->daq_io_addr
+ AckDelay
);
950 writeb(0x0C, devpriv
->mite
->daq_io_addr
+ AckNotDelay
);
951 writeb(0x10, devpriv
->mite
->daq_io_addr
+ Data1Delay
);
952 writew(0, devpriv
->mite
->daq_io_addr
+ ClockSpeed
);
953 writeb(0x60, devpriv
->mite
->daq_io_addr
+ DAQOptions
);
956 if (cmd
->stop_src
== TRIG_COUNT
) {
957 writel(cmd
->stop_arg
,
958 devpriv
->mite
->daq_io_addr
+ Transfer_Count
);
964 writeb(ClearPrimaryTC
| ClearSecondaryTC
,
965 devpriv
->mite
->daq_io_addr
+ Group_1_First_Clear
);
968 int retval
= setup_mite_dma(dev
, s
);
973 writeb(0x00, devpriv
->mite
->daq_io_addr
+ DMA_Line_Control_Group1
);
975 writeb(0x00, devpriv
->mite
->daq_io_addr
+ DMA_Line_Control_Group2
);
977 /* clear and enable interrupts */
978 writeb(0xff, devpriv
->mite
->daq_io_addr
+ Group_1_First_Clear
);
979 /* writeb(ClearExpired,
980 devpriv->mite->daq_io_addr+Group_1_Second_Clear); */
982 writeb(IntEn
, devpriv
->mite
->daq_io_addr
+ Interrupt_Control
);
984 devpriv
->mite
->daq_io_addr
+ Master_DMA_And_Interrupt_Control
);
986 if (cmd
->stop_src
== TRIG_NONE
) {
987 devpriv
->OpModeBits
= DataLatching(0) | RunMode(7);
988 } else { /* TRIG_TIMER */
989 devpriv
->OpModeBits
= Numbered
| RunMode(7);
991 if (cmd
->start_src
== TRIG_NOW
) {
993 writeb(devpriv
->OpModeBits
,
994 devpriv
->mite
->daq_io_addr
+ OpMode
);
995 s
->async
->inttrig
= NULL
;
998 s
->async
->inttrig
= ni_pcidio_inttrig
;
1001 DPRINTK("ni_pcidio: command started\n");
1005 static int setup_mite_dma(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
1009 retval
= ni_pcidio_request_di_mite_channel(dev
);
1013 devpriv
->di_mite_chan
->dir
= COMEDI_INPUT
;
1015 mite_prep_dma(devpriv
->di_mite_chan
, 32, 32);
1017 mite_dma_arm(devpriv
->di_mite_chan
);
1021 static int ni_pcidio_inttrig(struct comedi_device
*dev
,
1022 struct comedi_subdevice
*s
, unsigned int trignum
)
1027 writeb(devpriv
->OpModeBits
, devpriv
->mite
->daq_io_addr
+ OpMode
);
1028 s
->async
->inttrig
= NULL
;
1033 static int ni_pcidio_cancel(struct comedi_device
*dev
,
1034 struct comedi_subdevice
*s
)
1037 devpriv
->mite
->daq_io_addr
+ Master_DMA_And_Interrupt_Control
);
1038 ni_pcidio_release_di_mite_channel(dev
);
1043 static int ni_pcidio_change(struct comedi_device
*dev
,
1044 struct comedi_subdevice
*s
, unsigned long new_size
)
1048 ret
= mite_buf_change(devpriv
->di_mite_ring
, s
->async
);
1052 memset(s
->async
->prealloc_buf
, 0xaa, s
->async
->prealloc_bufsz
);
1057 static int pci_6534_load_fpga(struct comedi_device
*dev
, int fpga_index
,
1058 u8
*data
, int data_len
)
1060 static const int timeout
= 1000;
1062 writew(0x80 | fpga_index
,
1063 devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1064 writew(0xc0 | fpga_index
,
1065 devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1067 (readw(devpriv
->mite
->daq_io_addr
+
1068 Firmware_Status_Register
) & 0x2) == 0 && i
< timeout
; ++i
) {
1072 printk(KERN_WARNING
"ni_pcidio: failed to load fpga %i, "
1073 "waiting for status 0x2\n", fpga_index
);
1076 writew(0x80 | fpga_index
,
1077 devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1079 readw(devpriv
->mite
->daq_io_addr
+ Firmware_Status_Register
) !=
1080 0x3 && i
< timeout
; ++i
) {
1084 printk(KERN_WARNING
"ni_pcidio: failed to load fpga %i, "
1085 "waiting for status 0x3\n", fpga_index
);
1088 for (j
= 0; j
+ 1 < data_len
;) {
1089 unsigned int value
= data
[j
++];
1090 value
|= data
[j
++] << 8;
1092 devpriv
->mite
->daq_io_addr
+ Firmware_Data_Register
);
1094 (readw(devpriv
->mite
->daq_io_addr
+
1095 Firmware_Status_Register
) & 0x2) == 0
1096 && i
< timeout
; ++i
) {
1100 printk("ni_pcidio: failed to load word into fpga %i\n",
1107 writew(0x0, devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1111 static int pci_6534_reset_fpga(struct comedi_device
*dev
, int fpga_index
)
1113 return pci_6534_load_fpga(dev
, fpga_index
, NULL
, 0);
1116 static int pci_6534_reset_fpgas(struct comedi_device
*dev
)
1120 writew(0x0, devpriv
->mite
->daq_io_addr
+ Firmware_Control_Register
);
1121 for (i
= 0; i
< 3; ++i
) {
1122 ret
= pci_6534_reset_fpga(dev
, i
);
1126 writew(0x0, devpriv
->mite
->daq_io_addr
+ Firmware_Mask_Register
);
1130 static void pci_6534_init_main_fpga(struct comedi_device
*dev
)
1132 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_Control1_Register
);
1133 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_Control2_Register
);
1134 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_SCALS_Counter_Register
);
1135 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_SCAMS_Counter_Register
);
1136 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_SCBLS_Counter_Register
);
1137 writel(0, devpriv
->mite
->daq_io_addr
+ FPGA_SCBMS_Counter_Register
);
1140 static int pci_6534_upload_firmware(struct comedi_device
*dev
, int options
[])
1143 void *main_fpga_data
, *scarab_a_data
, *scarab_b_data
;
1144 int main_fpga_data_len
, scarab_a_data_len
, scarab_b_data_len
;
1146 if (options
[COMEDI_DEVCONF_AUX_DATA_LENGTH
] == 0)
1148 ret
= pci_6534_reset_fpgas(dev
);
1151 main_fpga_data
= comedi_aux_data(options
, 0);
1152 main_fpga_data_len
= options
[COMEDI_DEVCONF_AUX_DATA0_LENGTH
];
1153 ret
= pci_6534_load_fpga(dev
, 2, main_fpga_data
, main_fpga_data_len
);
1156 pci_6534_init_main_fpga(dev
);
1157 scarab_a_data
= comedi_aux_data(options
, 1);
1158 scarab_a_data_len
= options
[COMEDI_DEVCONF_AUX_DATA1_LENGTH
];
1159 ret
= pci_6534_load_fpga(dev
, 0, scarab_a_data
, scarab_a_data_len
);
1162 scarab_b_data
= comedi_aux_data(options
, 2);
1163 scarab_b_data_len
= options
[COMEDI_DEVCONF_AUX_DATA2_LENGTH
];
1164 ret
= pci_6534_load_fpga(dev
, 1, scarab_b_data
, scarab_b_data_len
);
1170 static int nidio_attach(struct comedi_device
*dev
, struct comedi_devconfig
*it
)
1172 struct comedi_subdevice
*s
;
1178 printk(KERN_INFO
"comedi%d: nidio:", dev
->minor
);
1180 ret
= alloc_private(dev
, sizeof(struct nidio96_private
));
1183 spin_lock_init(&devpriv
->mite_channel_lock
);
1185 ret
= nidio_find_device(dev
, it
->options
[0], it
->options
[1]);
1189 ret
= mite_setup(devpriv
->mite
);
1191 printk(KERN_WARNING
"error setting up mite\n");
1194 comedi_set_hw_dev(dev
, &devpriv
->mite
->pcidev
->dev
);
1195 devpriv
->di_mite_ring
= mite_alloc_ring(devpriv
->mite
);
1196 if (devpriv
->di_mite_ring
== NULL
)
1199 dev
->board_name
= this_board
->name
;
1200 irq
= mite_irq(devpriv
->mite
);
1201 printk(KERN_INFO
" %s", dev
->board_name
);
1202 if (this_board
->uses_firmware
) {
1203 ret
= pci_6534_upload_firmware(dev
, it
->options
);
1207 if (!this_board
->is_diodaq
)
1208 n_subdevices
= this_board
->n_8255
;
1212 ret
= alloc_subdevices(dev
, n_subdevices
);
1216 if (!this_board
->is_diodaq
) {
1217 for (i
= 0; i
< this_board
->n_8255
; i
++) {
1218 subdev_8255_init(dev
, dev
->subdevices
+ i
,
1220 (unsigned long)(devpriv
->mite
->
1222 NIDIO_8255_BASE(i
)));
1226 printk(KERN_INFO
" rev=%d",
1227 readb(devpriv
->mite
->daq_io_addr
+ Chip_Version
));
1229 s
= dev
->subdevices
+ 0;
1231 dev
->read_subdev
= s
;
1232 s
->type
= COMEDI_SUBD_DIO
;
1234 SDF_READABLE
| SDF_WRITABLE
| SDF_LSAMPL
| SDF_PACKED
|
1237 s
->range_table
= &range_digital
;
1239 s
->insn_config
= &ni_pcidio_insn_config
;
1240 s
->insn_bits
= &ni_pcidio_insn_bits
;
1241 s
->do_cmd
= &ni_pcidio_cmd
;
1242 s
->do_cmdtest
= &ni_pcidio_cmdtest
;
1243 s
->cancel
= &ni_pcidio_cancel
;
1244 s
->len_chanlist
= 32; /* XXX */
1245 s
->buf_change
= &ni_pcidio_change
;
1246 s
->async_dma_dir
= DMA_BIDIRECTIONAL
;
1248 writel(0, devpriv
->mite
->daq_io_addr
+ Port_IO(0));
1249 writel(0, devpriv
->mite
->daq_io_addr
+ Port_Pin_Directions(0));
1250 writel(0, devpriv
->mite
->daq_io_addr
+ Port_Pin_Mask(0));
1252 /* disable interrupts on board */
1254 devpriv
->mite
->daq_io_addr
+
1255 Master_DMA_And_Interrupt_Control
);
1257 ret
= request_irq(irq
, nidio_interrupt
, IRQF_SHARED
,
1260 printk(KERN_WARNING
" irq not available");
1270 static int nidio_detach(struct comedi_device
*dev
)
1274 if (this_board
&& !this_board
->is_diodaq
) {
1275 for (i
= 0; i
< this_board
->n_8255
; i
++)
1276 subdev_8255_cleanup(dev
, dev
->subdevices
+ i
);
1280 free_irq(dev
->irq
, dev
);
1283 if (devpriv
->di_mite_ring
) {
1284 mite_free_ring(devpriv
->di_mite_ring
);
1285 devpriv
->di_mite_ring
= NULL
;
1288 mite_unsetup(devpriv
->mite
);
1293 static int nidio_find_device(struct comedi_device
*dev
, int bus
, int slot
)
1295 struct mite_struct
*mite
;
1298 for (mite
= mite_devices
; mite
; mite
= mite
->next
) {
1302 if (bus
!= mite
->pcidev
->bus
->number
||
1303 slot
!= PCI_SLOT(mite
->pcidev
->devfn
))
1306 for (i
= 0; i
< n_nidio_boards
; i
++) {
1307 if (mite_device_id(mite
) == nidio_boards
[i
].dev_id
) {
1308 dev
->board_ptr
= nidio_boards
+ i
;
1309 devpriv
->mite
= mite
;
1315 printk(KERN_WARNING
"no device found\n");
1316 mite_list_devices();
1320 static int __devinit
driver_pcidio_pci_probe(struct pci_dev
*dev
,
1321 const struct pci_device_id
*ent
)
1323 return comedi_pci_auto_config(dev
, driver_pcidio
.driver_name
);
1326 static void __devexit
driver_pcidio_pci_remove(struct pci_dev
*dev
)
1328 comedi_pci_auto_unconfig(dev
);
1331 static struct pci_driver driver_pcidio_pci_driver
= {
1332 .id_table
= ni_pcidio_pci_table
,
1333 .probe
= &driver_pcidio_pci_probe
,
1334 .remove
= __devexit_p(&driver_pcidio_pci_remove
)
1337 static int __init
driver_pcidio_init_module(void)
1341 retval
= comedi_driver_register(&driver_pcidio
);
1345 driver_pcidio_pci_driver
.name
= (char *)driver_pcidio
.driver_name
;
1346 return pci_register_driver(&driver_pcidio_pci_driver
);
1349 static void __exit
driver_pcidio_cleanup_module(void)
1351 pci_unregister_driver(&driver_pcidio_pci_driver
);
1352 comedi_driver_unregister(&driver_pcidio
);
1355 module_init(driver_pcidio_init_module
);
1356 module_exit(driver_pcidio_cleanup_module
);
1358 MODULE_AUTHOR("Comedi http://www.comedi.org");
1359 MODULE_DESCRIPTION("Comedi low-level driver");
1360 MODULE_LICENSE("GPL");